VIFT forklift advantages: 1.Power System. VIFT forklifts are all with reliable power accessories,like CZPT Engine. All accessories are support by domestic and world famous brand, high quality, reliable after-sales.We follow the strict environmental design,all engines match the China or even higher emission standards. 2.Super comfortable. VIFT forklifts are all with comfortable driving space,adjustable steering wheel and seats,super low and non-slip step,suspension steering axle,storing space,and convenient LCD panel. 3.VIFT forklift can equip with different attachments according to your need.
Engine Option
Manufacture
Model
No.of Cylinder
Displacement(CC)
Rated Output/r.p.m(kw)
Rated Torque/r.p.m(N.m)
Bore*Stroke
ISUZU
C240NKFC-01
4
2369
35.4/25/8822 0571 -57521229
Fax: 86~/8822 0571 -57521229
Tel:
Add: No 858, FengGao Road , Xihu (West Lake) Dis. district , ZheJiang , China .
VIFT American Representative:
Tel:
VIFT European Representative:
Tel:
VIFT Asia Representative:
Tel:
How to Calculate Stiffness, Centering Force, Wear and Fatigue Failure of Spline Couplings
There are various types of spline couplings. These couplings have several important properties. These properties are: Stiffness, Involute splines, Misalignment, Wear and fatigue failure. To understand how these characteristics relate to spline couplings, read this article. It will give you the necessary knowledge to determine which type of coupling best suits your needs. Keeping in mind that spline couplings are usually spherical in shape, they are made of steel.
Involute splines
An effective side interference condition minimizes gear misalignment. When 2 splines are coupled with no spline misalignment, the maximum tensile root stress shifts to the left by 5 mm. A linear lead variation, which results from multiple connections along the length of the spline contact, increases the effective clearance or interference by a given percentage. This type of misalignment is undesirable for coupling high-speed equipment. Involute splines are often used in gearboxes. These splines transmit high torque, and are better able to distribute load among multiple teeth throughout the coupling circumference. The involute profile and lead errors are related to the spacing between spline teeth and keyways. For coupling applications, industry practices use splines with 25 to 50-percent of spline teeth engaged. This load distribution is more uniform than that of conventional single-key couplings. To determine the optimal tooth engagement for an involved spline coupling, Xiangzhen Xue and colleagues used a computer model to simulate the stress applied to the splines. The results from this study showed that a “permissible” Ruiz parameter should be used in coupling. By predicting the amount of wear and tear on a crowned spline, the researchers could accurately predict how much damage the components will sustain during the coupling process. There are several ways to determine the optimal pressure angle for an involute spline. Involute splines are commonly measured using a pressure angle of 30 degrees. Similar to gears, involute splines are typically tested through a measurement over pins. This involves inserting specific-sized wires between gear teeth and measuring the distance between them. This method can tell whether the gear has a proper tooth profile. The spline system shown in Figure 1 illustrates a vibration model. This simulation allows the user to understand how involute splines are used in coupling. The vibration model shows 4 concentrated mass blocks that represent the prime mover, the internal spline, and the load. It is important to note that the meshing deformation function represents the forces acting on these 3 components.
Stiffness of coupling
The calculation of stiffness of a spline coupling involves the measurement of its tooth engagement. In the following, we analyze the stiffness of a spline coupling with various types of teeth using 2 different methods. Direct inversion and blockwise inversion both reduce CPU time for stiffness calculation. However, they require evaluation submatrices. Here, we discuss the differences between these 2 methods. The analytical model for spline couplings is derived in the second section. In the third section, the calculation process is explained in detail. We then validate this model against the FE method. Finally, we discuss the influence of stiffness nonlinearity on the rotor dynamics. Finally, we discuss the advantages and disadvantages of each method. We present a simple yet effective method for estimating the lateral stiffness of spline couplings. The numerical calculation of the spline coupling is based on the semi-analytical spline load distribution model. This method involves refined contact grids and updating the compliance matrix at each iteration. Hence, it consumes significant computational time. Further, it is difficult to apply this method to the dynamic analysis of a rotor. This method has its own limitations and should be used only when the spline coupling is fully investigated. The meshing force is the force generated by a misaligned spline coupling. It is related to the spline thickness and the transmitting torque of the rotor. The meshing force is also related to the dynamic vibration displacement. The result obtained from the meshing force analysis is given in Figures 7, 8, and 9. The analysis presented in this paper aims to investigate the stiffness of spline couplings with a misaligned spline. Although the results of previous studies were accurate, some issues remained. For example, the misalignment of the spline may cause contact damages. The aim of this article is to investigate the problems associated with misaligned spline couplings and propose an analytical approach for estimating the contact pressure in a spline connection. We also compare our results to those obtained by pure numerical approaches.
Misalignment
To determine the centering force, the effective pressure angle must be known. Using the effective pressure angle, the centering force is calculated based on the maximum axial and radial loads and updated Dudley misalignment factors. The centering force is the maximum axial force that can be transmitted by friction. Several published misalignment factors are also included in the calculation. A new method is presented in this paper that considers the cam effect in the normal force. In this new method, the stiffness along the spline joint can be integrated to obtain a global stiffness that is applicable to torsional vibration analysis. The stiffness of bearings can also be calculated at given levels of misalignment, allowing for accurate estimation of bearing dimensions. It is advisable to check the stiffness of bearings at all times to ensure that they are properly sized and aligned. A misalignment in a spline coupling can result in wear or even failure. This is caused by an incorrectly aligned pitch profile. This problem is often overlooked, as the teeth are in contact throughout the involute profile. This causes the load to not be evenly distributed along the contact line. Consequently, it is important to consider the effect of misalignment on the contact force on the teeth of the spline coupling. The centre of the male spline in Figure 2 is superposed on the female spline. The alignment meshing distances are also identical. Hence, the meshing force curves will change according to the dynamic vibration displacement. It is necessary to know the parameters of a spline coupling before implementing it. In this paper, the model for misalignment is presented for spline couplings and the related parameters. Using a self-made spline coupling test rig, the effects of misalignment on a spline coupling are studied. In contrast to the typical spline coupling, misalignment in a spline coupling causes fretting wear at a specific position on the tooth surface. This is a leading cause of failure in these types of couplings.
Wear and fatigue failure
The failure of a spline coupling due to wear and fatigue is determined by the first occurrence of tooth wear and shaft misalignment. Standard design methods do not account for wear damage and assess the fatigue life with big approximations. Experimental investigations have been conducted to assess wear and fatigue damage in spline couplings. The tests were conducted on a dedicated test rig and special device connected to a standard fatigue machine. The working parameters such as torque, misalignment angle, and axial distance have been varied in order to measure fatigue damage. Over dimensioning has also been assessed. During fatigue and wear, mechanical sliding takes place between the external and internal splines and results in catastrophic failure. The lack of literature on the wear and fatigue of spline couplings in aero-engines may be due to the lack of data on the coupling’s application. Wear and fatigue failure in splines depends on a number of factors, including the material pair, geometry, and lubrication conditions. The analysis of spline couplings shows that over-dimensioning is common and leads to different damages in the system. Some of the major damages are wear, fretting, corrosion, and teeth fatigue. Noise problems have also been observed in industrial settings. However, it is difficult to evaluate the contact behavior of spline couplings, and numerical simulations are often hampered by the use of specific codes and the boundary element method. The failure of a spline gear coupling was caused by fatigue, and the fracture initiated at the bottom corner radius of the keyway. The keyway and splines had been overloaded beyond their yield strength, and significant yielding was observed in the spline gear teeth. A fracture ring of non-standard alloy steel exhibited a sharp corner radius, which was a significant stress raiser. Several components were studied to determine their life span. These components include the spline shaft, the sealing bolt, and the graphite ring. Each of these components has its own set of design parameters. However, there are similarities in the distributions of these components. Wear and fatigue failure of spline couplings can be attributed to a combination of the 3 factors. A failure mode is often defined as a non-linear distribution of stresses and strains.
VIFT forklift advantages: 1.Power System. VIFT forklifts are all with reliable power accessories,like CZPT Engine. All accessories are support by domestic and world famous brand, high quality, reliable after-sales.We follow the strict environmental design,all engines match the China or even higher emission standards. 2.Super comfortable. VIFT forklifts are all with comfortable driving space,adjustable steering wheel and seats,super low and non-slip step,suspension steering axle,storing space,and convenient LCD panel. 3.VIFT forklift can equip with different attachments according to your need.
Engine Option
Manufacture
Model
No.of Cylinder
Displacement(CC)
Rated Output/r.p.m(kw)
Rated Torque/r.p.m(N.m)
Bore*Stroke
ISUZU
C240NKFC-01
4
2369
35.4/25/8822 0571 -57521229
Fax: 86~/8822 0571 -57521229
Tel:
Add: No 858, FengGao Road , Xihu (West Lake) Dis. district , ZheJiang , China .
VIFT American Representative:
Tel:
VIFT European Representative:
Tel:
VIFT Asia Representative:
Tel:
Screw Shaft Features Explained
When choosing the screw shaft for your application, you should consider the features of the screws: threads, lead, pitch, helix angle, and more. You may be wondering what these features mean and how they affect the screw’s performance. This article explains the differences between these factors. The following are the features that affect the performance of screws and their properties. You can use these to make an informed decision and purchase the right screw. You can learn more about these features by reading the following articles.
Threads
The major diameter of a screw thread is the larger of the 2 extreme diameters. The major diameter of a screw is also known as the outside diameter. This dimension can’t be directly measured, but can be determined by measuring the distance between adjacent sides of the thread. In addition, the mean area of a screw thread is known as the pitch. The diameter of the thread and pitch line are directly proportional to the overall size of the screw. The threads are classified by the diameter and pitch. The major diameter of a screw shaft has the largest number of threads; the smaller diameter is called the minor diameter. The thread angle, also known as the helix angle, is measured perpendicular to the axis of the screw. The major diameter is the largest part of the screw; the minor diameter is the lower end of the screw. The thread angle is the half distance between the major and minor diameters. The minor diameter is the outer surface of the screw, while the top surface corresponds to the major diameter. The pitch is measured at the crest of a thread. In other words, a 16-pitch thread has a diameter of 1 sixteenth of the screw shaft’s diameter. The actual diameter is 0.03125 inches. Moreover, a large number of manufacturers use this measurement to determine the thread pitch. The pitch diameter is a critical factor in successful mating of male and female threads. So, when determining the pitch diameter, you need to check the thread pitch plate of a screw.
Lead
In screw shaft applications, a solid, corrosion-resistant material is an important requirement. Lead screws are a robust choice, which ensure shaft direction accuracy. This material is widely used in lathes and measuring instruments. They have black oxide coatings and are suited for environments where rusting is not acceptable. These screws are also relatively inexpensive. Here are some advantages of lead screws. They are highly durable, cost-effective, and offer high reliability. A lead screw system may have multiple starts, or threads that run parallel to each other. The lead is the distance the nut travels along the shaft during a single revolution. The smaller the lead, the tighter the thread. The lead can also be expressed as the pitch, which is the distance between adjacent thread crests or troughs. A lead screw has a smaller pitch than a nut, and the smaller the lead, the greater its linear speed. When choosing lead screws, the critical speed is the maximum number of revolutions per minute. This is determined by the minor diameter of the shaft and its length. The critical speed should never be exceeded or the lead will become distorted or cracked. The recommended operational speed is around 80 percent of the evaluated critical speed. Moreover, the lead screw must be properly aligned to avoid excessive vibrations. In addition, the screw pitch must be within the design tolerance of the shaft.
Pitch
The pitch of a screw shaft can be viewed as the distance between the crest of a thread and the surface where the threads meet. In mathematics, the pitch is equivalent to the length of 1 wavelength. The pitch of a screw shaft also relates to the diameter of the threads. In the following, the pitch of a screw is explained. It is important to note that the pitch of a screw is not a metric measurement. In the following, we will define the 2 terms and discuss how they relate to 1 another. A screw’s pitch is not the same in all countries. The United Kingdom, Canada, and the United States have standardized screw threads according to the UN system. Therefore, there is a need to specify the pitch of a screw shaft when a screw is being manufactured. The standardization of pitch and diameter has also reduced the cost of screw manufacturing. Nevertheless, screw threads are still expensive. The United Kingdom, Canada, and the United States have introduced a system for the calculation of screw pitch. The pitch of a lead screw is the same as that of a lead screw. The diameter is 0.25 inches and the circumference is 0.79 inches. When calculating the mechanical advantage of a screw, divide the diameter by its pitch. The larger the pitch, the more threads the screw has, increasing its critical speed and stiffness. The pitch of a screw shaft is also proportional to the number of starts in the shaft.
Helix angle
The helix angle of a screw shaft is the angle formed between the circumference of the cylinder and its helix. Both of these angles must be equal to 90 degrees. The larger the lead angle, the smaller the helix angle. Some reference materials refer to angle B as the helix angle. However, the actual angle is derived from calculating the screw geometry. Read on for more information. Listed below are some of the differences between helix angles and lead angles. High helix screws have a long lead. This length reduces the number of effective turns of the screw. Because of this, fine pitch screws are usually used for small movements. A typical example is a 16-mm x 5-inch screw. Another example of a fine pitch screw is a 12x2mm screw. It is used for small moves. This type of screw has a lower lead angle than a high-helix screw. A screw’s helix angle refers to the relative angle of the flight of the helix to the plane of the screw axis. While screw helix angles are not often altered from the standard square pitch, they can have an effect on processing. Changing the helix angle is more common in two-stage screws, special mixing screws, and metering screws. When a screw is designed for this function, it should be able to handle the materials it is made of.
Size
The diameter of a screw is its diameter, measured from the head to the shaft. Screw diameters are standardized by the American Society of Mechanical Engineers. The diameters of screws range from 3/50 inches to 16 inches, and more recently, fractions of an inch have been added. However, shaft diameters may vary depending on the job, so it is important to know the right size for the job. The size chart below shows the common sizes for screws. Screws are generally referred to by their gauge, which is the major diameter. Screws with a major diameter less than a quarter of an inch are usually labeled as #0 to #14 and larger screws are labeled as sizes in fractions of an inch. There are also decimal equivalents of each screw size. These measurements will help you choose the correct size for your project. The screws with the smaller diameters were not tested. In the previous section, we described the different shaft sizes and their specifications. These screw sizes are usually indicated by fractions of an inch, followed by a number of threads per inch. For example, a ten-inch screw has a shaft size of 2” with a thread pitch of 1/4″, and it has a diameter of 2 inches. This screw is welded to a two-inch Sch. 40 pipe. Alternatively, it can be welded to a 9-inch O.A.L. pipe.
Shape
Screws come in a wide variety of sizes and shapes, from the size of a quarter to the diameter of a U.S. quarter. Screws’ main function is to hold objects together and to translate torque into linear force. The shape of a screw shaft, if it is round, is the primary characteristic used to define its use. The following chart shows how the screw shaft differs from a quarter: The shape of a screw shaft is determined by 2 features: its major diameter, or distance from the outer edge of the thread on 1 side to the inner smooth surface of the shaft. These are generally 2 to 16 millimeters in diameter. Screw shafts can have either a fully threaded shank or a half-threaded shank, with the latter providing better stability. Regardless of whether the screw shaft is round or domed, it is important to understand the different characteristics of a screw before attempting to install it into a project. The screw shaft’s diameter is also important to its application. The ball circle diameter refers to the distance between the center of 2 opposite balls in contact with the grooves. The root diameter, on the other hand, refers to the distance between the bottommost grooves of the screw shaft. These are the 2 main measurements that define the screw’s overall size. Pitch and nominal diameter are important measurements for a screw’s performance in a particular application.
Lubrication
In most cases, lubrication of a screw shaft is accomplished with grease. Grease is made up of mineral or synthetic oil, thickening agent, and additives. The thickening agent can be a variety of different substances, including lithium, bentonite, aluminum, and barium complexes. A common classification for lubricating grease is NLGI Grade. While this may not be necessary when specifying the type of grease to use for a particular application, it is a useful qualitative measure. When selecting a lubricant for a screw shaft, the operating temperature and the speed of the shaft determine the type of oil to use. Too much oil can result in heat buildup, while too little can lead to excessive wear and friction. The proper lubrication of a screw shaft directly affects the temperature rise of a ball screw, and the life of the assembly. To ensure the proper lubrication, follow the guidelines below. Ideally, a low lubrication level is appropriate for medium-sized feed stuff factories. High lubrication level is appropriate for larger feed stuff factories. However, in low-speed applications, the lubrication level should be sufficiently high to ensure that the screws run freely. This is the only way to reduce friction and ensure the longest life possible. Lubrication of screw shafts is an important consideration for any screw.
Chinese Cheapest/Lowest 3.5ton Forklift with Two Years Warranty
VIFT forklift advantages: 1.Power System. VIFT forklifts are all with reliable power accessories,like CZPT Engine. All accessories are support by domestic and world famous brand, high quality, reliable after-sales.We follow the strict environmental design,all engines match the China or even higher emission standards. 2.Super comfortable. VIFT forklifts are all with comfortable driving space,adjustable steering wheel and seats,super low and non-slip step,suspension steering axle,storing space,and convenient LCD panel. 3.VIFT forklift can equip with different attachments according to your need.
Engine Option
Manufacture
Model
No.of Cylinder
Displacement(CC)
Rated Output/r.p.m(kw)
Rated Torque/r.p.m(N.m)
Bore*Stroke
ISUZU
C240NKFC-01
4
2369
35.4/25/8822 0571 -57521229
Fax: 86~/8822 0571 -57521229
Customer SupportTel:
Add: No 858, FengGao Road , Xihu (West Lake) Dis. district , ZheJiang , China .
VIFT American Representative:
Tel:
VIFT European Representative:
Tel:
VIFT Asia Representative:
Tel:
What is a drive shaft?
If you notice a clicking noise while driving, it is most likely the driveshaft. An experienced auto mechanic will be able to tell you if the noise is coming from both sides or from 1 side. If it only happens on 1 side, you should check it. If you notice noise on both sides, you should contact a mechanic. In either case, a replacement driveshaft should be easy to find.
The drive shaft is a mechanical part
A driveshaft is a mechanical device that transmits rotation and torque from the engine to the wheels of the vehicle. This component is essential to the operation of any driveline, as the mechanical power from the engine is transmitted to the PTO (power take-off) shaft, which hydraulically transmits that power to connected equipment. Different drive shafts contain different combinations of joints to compensate for changes in shaft length and angle. Some types of drive shafts include connecting shafts, internal constant velocity joints, and external fixed joints. They also contain anti-lock system rings and torsional dampers to prevent overloading the axle or causing the wheels to lock. Although driveshafts are relatively light, they need to handle a lot of torque. Torque applied to the drive shaft produces torsional and shear stresses. Because they have to withstand torque, these shafts are designed to be lightweight and have little inertia or weight. Therefore, they usually have a joint, coupling or rod between the 2 parts. Components can also be bent to accommodate changes in the distance between them. The drive shaft can be made from a variety of materials. The most common material for these components is steel, although alloy steels are often used for high-strength applications. Alloy steel, chromium or vanadium are other materials that can be used. The type of material used depends on the application and size of the component. In many cases, metal driveshafts are the most durable and cheapest option. Plastic shafts are used for light duty applications and have different torque levels than metal shafts.
It transfers power from the engine to the wheels
A car’s powertrain consists of an electric motor, transmission, and differential. Each section performs a specific job. In a rear-wheel drive vehicle, the power generated by the engine is transmitted to the rear tires. This arrangement improves braking and handling. The differential controls how much power each wheel receives. The torque of the engine is transferred to the wheels according to its speed. The transmission transfers power from the engine to the wheels. It is also called “transgender”. Its job is to ensure power is delivered to the wheels. Electric cars cannot drive themselves and require a gearbox to drive forward. It also controls how much power reaches the wheels at any given moment. The transmission is the last part of the power transmission chain. Despite its many names, the transmission is the most complex component of a car’s powertrain. The driveshaft is a long steel tube that transmits mechanical power from the transmission to the wheels. Cardan joints connect to the drive shaft and provide flexible pivot points. The differential assembly is mounted on the drive shaft, allowing the wheels to turn at different speeds. The differential allows the wheels to turn at different speeds and is very important when cornering. Axles are also important to the performance of the car.
It has a rubber boot that protects it from dust and moisture
To keep this boot in good condition, you should clean it with cold water and a rag. Never place it in the dryer or in direct sunlight. Heat can deteriorate the rubber and cause it to shrink or crack. To prolong the life of your rubber boots, apply rubber conditioner to them regularly. Indigenous peoples in the Amazon region collect latex sap from the bark of rubber trees. Then they put their feet on the fire to solidify the sap.
it has a U-shaped connector
The drive shaft has a U-joint that transfers rotational energy from the engine to the axle. Defective gimbal joints can cause vibrations when the vehicle is in motion. This vibration is often mistaken for a wheel balance problem. Wheel balance problems can cause the vehicle to vibrate while driving, while a U-joint failure can cause the vehicle to vibrate when decelerating and accelerating, and stop when the vehicle is stopped. The drive shaft is connected to the transmission and differential using a U-joint. It allows for small changes in position between the 2 components. This prevents the differential and transmission from remaining perfectly aligned. The U-joint also allows the drive shaft to be connected unconstrained, allowing the vehicle to move. Its main purpose is to transmit electricity. Of all types of elastic couplings, U-joints are the oldest. Your vehicle’s U-joints should be inspected at least twice a year, and the joints should be greased. When checking the U-joint, you should hear a dull sound when changing gears. A clicking sound indicates insufficient grease in the bearing. If you hear or feel vibrations when shifting gears, you may need to service the bearings to prolong their life.
it has a slide-in tube
The telescopic design is a modern alternative to traditional driveshaft designs. This innovative design is based on an unconventional design philosophy that combines advances in material science and manufacturing processes. Therefore, they are more efficient and lighter than conventional designs. Slide-in tubes are a simple and efficient design solution for any vehicle application. Here are some of its benefits. Read on to learn why this type of shaft is ideal for many applications. The telescopic drive shaft is an important part of the traditional automobile transmission system. These driveshafts allow linear motion of the 2 components, transmitting torque and rotation throughout the vehicle’s driveline. They also absorb energy if the vehicle collides. Often referred to as foldable driveshafts, their popularity is directly dependent on the evolution of the automotive industry.
It uses a bearing press to replace worn or damaged U-joints
A bearing press is a device that uses a rotary press mechanism to install or remove worn or damaged U-joints from a drive shaft. With this tool, you can replace worn or damaged U-joints in your car with relative ease. The first step involves placing the drive shaft in the vise. Then, use the 11/16″ socket to press the other cup in far enough to install the clips. If the cups don’t fit, you can use a bearing press to remove them and repeat the process. After removing the U-joint, use a grease nipple Make sure the new grease nipple is installed correctly. Worn or damaged U-joints are a major source of driveshaft failure. If 1 of them were damaged or damaged, the entire driveshaft could dislocate and the car would lose power. Unless you have a professional mechanic doing the repairs, you will have to replace the entire driveshaft. Fortunately, there are many ways to do this yourself. If any of these warning signs appear on your vehicle, you should consider replacing the damaged or worn U-joint. Common symptoms of damaged U-joints include rattling or periodic squeaking when moving, rattling when shifting, wobbling when turning, or rusted oil seals. If you notice any of these symptoms, take your vehicle to a qualified mechanic for a full inspection. Neglecting to replace a worn or damaged u-joint on the driveshaft can result in expensive and dangerous repairs and can cause significant damage to your vehicle.
Chinese Brand New Construction Machinery SUNYO WZ30-25 model backhoe loader with famous engine and transmission. widely used and flexible operation loved by customer.
The Backhoe Loader WZ30-25: WZ30-25 Backhoe loader, with CZPT YC4A105Z-T20 engine , power is100hp, chinese axle and Trans. With A/C, pilot control, Reversing video, hammer pipe , WZ30-25 Backhoe loader Operating weight7600kg, front bucket 1.2 m3, rated loading is 2.5tons. Rear CZPT bucket is 0.3 m3, It can use for loading and digging, 1 machine has 2 functions. can help you to save much more cost. and can do many kinds work for building road, and so on. It will bring you higher economic efficiency, Better profit income.
Main Performance Parameter of WZ30-25:
Overall Operating Weight
7640KG
Transport Dimension
mm L*W*H
6170×2268×3760
Wheel base
2370mm
Min. Ground Clearance
300mm
Bucket Capacity
1.0m3
Breakout Force
38KN
Loading Lifting Capacity
2500KG
Bucket Dumping Height
2770mm
Bucket Dumping Distance
925mm
Digging Depth
27mm
Backhoe Capacity
0.3m3
Max. CZPT Depth
4082mm
Swing Angle of Excavator Grab
190o
Max. Pulling Force
39KN
Engine
Model
YUCHAI YC4A105Z-T20
Type
In Line Direct injection Four-Stroke and Injection Combustion Chamber
Cylinder-Inside Diameter*Stroke
4-108×132
Rated Power
75KW
Rated Speed
2200r/min
Min. Fuel Consumption
≤230g/km.h
Max.Torque
≥400N.M/1500r/min
Displacement
4.8L
Steering System
Model of Steering Device
BZZ5-250
Steering Angle
±36 o
Min. turning radius
5018mm
Pressure of the system
14Mpa
Axle
Manufacturer
HangZhou Axle Factory
Main Transmission Type
Double Reduction
Final Reducer
Single Stage Final Reducer
Rated Loader of Axle
8.5t
Transmission System
Torque Converter
Model
YJ280
Type
Single-stage Three Elements
Max. Efficiency
84.40%
Inlet Pressure
1.3Mpa-1.5 Mpa
Outlet Pressure
0.25Mpa-0.3 Mpa
Cooling Method
Oil-cooling Pressure Circulation
Gearbox
Type
Fixed Shaft Power Transmission
Oil Pressure of Clutch
1373Kpa-1569 Kpa
Gears
Two Gears Ahead, Two Gears Astern
Max.Speed
22Km/h
Tyre
Model
16/70-20
Pressure of Front wheel
0.22 Mpa
Pressure of Back Wheel
0.22 Mpa
Brake System
Service Brake
Air Over Oil Caliper Brake
External Type
Self-regulation
Self-balance
Emergency Brake
Operation Power Implementing brake Manual Operation Power Terminating Brake
Hydraulic System
Digging Power of Excavator Grab
46.5KN
Digging Power of Dipper
31KN
Bucket Lifting Time
5.4S
Bucket Lowering Time
3.1S
Bucket Discharge Time
2.0S
Backhoe Loader: the backhoe loader also called a loader backhoe,is a heavy equipment vehicle that consists of a tractor fitted with a bucket on the front and a backhoe on the back. Due to its small size and versatility, backhoe loaders are very common in urban engineering and small construction projects (such as building a small house, fixing urban roads, etc.) as well as developing countries. This type of machine is similar to and derived from what is now known as a TLB (Tractor-Loader-Backhoe), which is to say, an agricultural tractor fitted with a front loader and rear backhoe attachment.
Packing & Shipping: We have been engaged in foreign trade for more than 18 years and have very rich experience in shipping. According to the past situation, each of our products is complete and delivered to customers as planned. Generally, For the WZ30-25 Backhoe loader , one set need 1 40H conainer, or 2 sets load into 1 40H container and 1 20 container. it also can load in the bulk ship, or Ro-on/Ro-off ship. it according your requirements
Attachments: Our backhoe loader can be with some more attachements excapt the standard bucket. for exmple the 4 in 1 bucket, Quick Change, Fork, Auger, Hamer, Grass Grab, Wooden Fork, Snow blade, sweaper, Rops And so on.
Our Service : Pre-sale service: To our customers, before you buy the equipments, we hope to understand your needs, according to your machine requirements and your budget; choose the right model for you, to ensure that you buy high-quality products at a lower price. At the same time, you are welcome to visit our factory in HangZhou, China; we will book hotels, air tickets and take you up from air port.
After-sale service: After the sale, we will properly arrange the transportation of the machine to ensure that the goods are safely delivered to your hands. At the same time, we will provide you with technical support 24 hours a day, or send engineers to CZPT the installation and operation. If there are any quality problems with the machine, we will solve it for you in the first time.
Factory View:
Here show some factory pictures to help you understand our company.
Exhibition: Here show you some exhibition pictures .
Certificate :
FAQ: Q1: Which country do you export to? Asia: Pakistan, Philippines, Thailand, Myanmar, Vietnam, Bangladesh, Kazakhstan, Turkmenistan, etc. Middle East: Iran, UAE, Jordan, Oman, Saudi Arabia, Syria, etc. Europe: Poland, Russia, Ukraine, Belarus, Bulgaria, etc. Africa: South Africa,Kenya,Congo,Ethiopia,Nigeria,Ghana,Algeria,Senegal,Tunisia,etc. South America: Paraguay, Colombia, Brazil, Peru, Chile, Cuba, Venezuela, etc. Oceania: Australia, etc.
Q2: What is the proportion of your products export? 90% of our products are exported to all over the world.
Q3: What is the payment term? We can discuss with you. Consider for long-term customers we are favorable payment terms TT, L/C, west union. It depends on the cooperation time, country and contract value.
Q4: What kind of logistic service do you supply? FOB, CIF, C&F
Q5: What spare parts can you supply? All kinds of spare parts of SUNYO JCM, SDLG, SHACMAN, SHXIHU (WEST LAKE) DIS.I, YTO, etc.
Analytical Approaches to Estimating Contact Pressures in Spline Couplings
A spline coupling is a type of mechanical connection between 2 rotating shafts. It consists of 2 parts – a coupler and a coupling. Both parts have teeth which engage and transfer loads. However, spline couplings are typically over-dimensioned, which makes them susceptible to fatigue and static behavior. Wear phenomena can also cause the coupling to fail. For this reason, proper spline coupling design is essential for achieving optimum performance.
Modeling a spline coupling
Spline couplings are becoming increasingly popular in the aerospace industry, but they operate in a slightly misaligned state, causing both vibrations and damage to the contact surfaces. To solve this problem, this article offers analytical approaches for estimating the contact pressures in a spline coupling. Specifically, this article compares analytical approaches with pure numerical approaches to demonstrate the benefits of an analytical approach. To model a spline coupling, first you create the knowledge base for the spline coupling. The knowledge base includes a large number of possible specification values, which are related to each other. If you modify 1 specification, it may lead to a warning for violating another. To make the design valid, you must create a spline coupling model that meets the specified specification values. After you have modeled the geometry, you must enter the contact pressures of the 2 spline couplings. Then, you need to determine the position of the pitch circle of the spline. In Figure 2, the centre of the male coupling is superposed to that of the female spline. Then, you need to make sure that the alignment meshing distance of the 2 splines is the same. Once you have the data you need to create a spline coupling model, you can begin by entering the specifications for the interface design. Once you have this data, you need to choose whether to optimize the internal spline or the external spline. You’ll also need to specify the tooth friction coefficient, which is used to determine the stresses in the spline coupling model 20. You should also enter the pilot clearance, which is the clearance between the tip 186 of a tooth 32 on 1 spline and the feature on the mating spline. After you have entered the desired specifications for the external spline, you can enter the parameters for the internal spline. For example, you can enter the outer diameter limit 154 of the major snap 54 and the minor snap 56 of the internal spline. The values of these parameters are displayed in color-coded boxes on the Spline Inputs and Configuration GUI screen 80. Once the parameters are entered, you’ll be presented with a geometric representation of the spline coupling model 20.
Creating a spline coupling model 20
The spline coupling model 20 is created by a product model software program 10. The software validates the spline coupling model against a knowledge base of configuration-dependent specification constraints and relationships. This report is then input to the ANSYS stress analyzer program. It lists the spline coupling model 20’s geometric configurations and specification values for each feature. The spline coupling model 20 is automatically recreated every time the configuration or performance specifications of the spline coupling model 20 are modified. The spline coupling model 20 can be configured using the product model software program 10. A user specifies the axial length of the spline stack, which may be zero, or a fixed length. The user also enters a radial mating face 148, if any, and selects a pilot clearance specification value of 14.5 degrees or 30 degrees. A user can then use the mouse 110 to modify the spline coupling model 20. The spline coupling knowledge base contains a large number of possible specification values and the spline coupling design rule. If the user tries to change a spline coupling model, the model will show a warning about a violation of another specification. In some cases, the modification may invalidate the design. In the spline coupling model 20, the user enters additional performance requirement specifications. The user chooses the locations where maximum torque is transferred for the internal and external splines 38 and 40. The maximum torque transfer location is determined by the attachment configuration of the hardware to the shafts. Once this is selected, the user can click “Next” to save the model. A preview of the spline coupling model 20 is displayed. The model 20 is a representation of a spline coupling. The spline specifications are entered in the order and arrangement as specified on the spline coupling model 20 GUI screen. Once the spline coupling specifications are entered, the product model software program 10 will incorporate them into the spline coupling model 20. This is the last step in spline coupling model creation.
Analysing a spline coupling model 20
An analysis of a spline coupling model consists of inputting its configuration and performance specifications. These specifications may be generated from another computer program. The product model software program 10 then uses its internal knowledge base of configuration dependent specification relationships and constraints to create a valid three-dimensional parametric model 20. This model contains information describing the number and types of spline teeth 32, snaps 34, and shoulder 36. When you are analysing a spline coupling, the software program 10 will include default values for various specifications. The spline coupling model 20 comprises an internal spline 38 and an external spline 40. Each of the splines includes its own set of parameters, such as its depth, width, length, and radii. The external spline 40 will also contain its own set of parameters, such as its orientation. Upon selecting these parameters, the software program will perform various analyses on the spline coupling model 20. The software program 10 calculates the nominal and maximal tooth bearing stresses and fatigue life of a spline coupling. It will also determine the difference in torsional windup between an internal and an external spline. The output file from the analysis will be a report file containing model configuration and specification data. The output file may also be used by other computer programs for further analysis. Once these parameters are set, the user enters the design criteria for the spline coupling model 20. In this step, the user specifies the locations of maximum torque transfer for both the external and internal spline 38. The maximum torque transfer location depends on the configuration of the hardware attached to the shafts. The user may enter up to 4 different performance requirement specifications for each spline. The results of the analysis show that there are 2 phases of spline coupling. The first phase shows a large increase in stress and vibration. The second phase shows a decline in both stress and vibration levels. The third stage shows a constant meshing force between 300N and 320N. This behavior continues for a longer period of time, until the final stage engages with the surface.
Misalignment of a spline coupling
A study aimed to investigate the position of the resultant contact force in a spline coupling engaging teeth under a steady torque and rotating misalignment. The study used numerical methods based on Finite Element Method (FEM) models. It produced numerical results for nominal conditions and parallel offset misalignment. The study considered 2 levels of misalignment – 0.02 mm and 0.08 mm – with different loading levels. The results showed that the misalignment between the splines and rotors causes a change in the meshing force of the spline-rotor coupling system. Its dynamics is governed by the meshing force of splines. The meshing force of a misaligned spline coupling is related to the rotor-spline coupling system parameters, the transmitting torque, and the dynamic vibration displacement. Despite the lack of precise measurements, the misalignment of splines is a common problem. This problem is compounded by the fact that splines usually feature backlash. This backlash is the result of the misaligned spline. The authors analyzed several splines, varying pitch diameters, and length/diameter ratios. A spline coupling is a two-dimensional mechanical system, which has positive backlash. The spline coupling is comprised of a hub and shaft, and has tip-to-root clearances that are larger than the backlash. A form-clearance is sufficient to prevent tip-to-root fillet contact. The torque on the splines is transmitted via friction. When a spline coupling is misaligned, a torque-biased thrust force is generated. In such a situation, the force can exceed the torque, causing the component to lose its alignment. The two-way transmission of torque and thrust is modeled analytically in the present study. The analytical approach provides solutions that can be integrated into the design process. So, the next time you are faced with a misaligned spline coupling problem, make sure to use an analytical approach! In this study, the spline coupling is analyzed under nominal conditions without a parallel offset misalignment. The stiffness values obtained are the percentage difference between the nominal pitch diameter and load application diameter. Moreover, the maximum percentage difference in the measured pitch diameter is 1.60% under a torque of 5000 N*m. The other parameter, the pitch angle, is taken into consideration in the calculation.
Chinese Brand New Construction Machinery SUNYO WZ30-25 model backhoe loader with famous engine and transmission. widely used and flexible operation.
The Backhoe Loader WZ30-25: WZ30-25 Backhoe loader, with CZPT YC4A105Z-T20 engine , power is100hp, chinese axle and Trans. With A/C, pilot control, Reversing video, hammer pipe , WZ30-25 Backhoe loader Operating weight7600kg, front bucket 1.2 m3, rated loading is 2.5tons. Rear CZPT bucket is 0.3 m3, It can use for loading and digging, 1 machine has 2 functions. can help you to save much more cost. and can do many kinds work for building road, and so on. It will bring you higher economic efficiency, Better profit income.
Main Performance Parameter of WZ30-25:
Overall Operating Weight
7640KG
Transport Dimension
mm L*W*H
6170×2268×3760
Wheel base
2370mm
Min. Ground Clearance
300mm
Bucket Capacity
1.0m3
Breakout Force
38KN
Loading Lifting Capacity
2500KG
Bucket Dumping Height
2770mm
Bucket Dumping Distance
925mm
Digging Depth
27mm
Backhoe Capacity
0.3m3
Max. CZPT Depth
4082mm
Swing Angle of Excavator Grab
190o
Max. Pulling Force
39KN
Engine
Model
YUCHAI YC4A105Z-T20
Type
In Line Direct injection Four-Stroke and Injection Combustion Chamber
Cylinder-Inside Diameter*Stroke
4-108×132
Rated Power
75KW
Rated Speed
2200r/min
Min. Fuel Consumption
≤230g/km.h
Max.Torque
≥400N.M/1500r/min
Displacement
4.8L
Steering System
Model of Steering Device
BZZ5-250
Steering Angle
±36 o
Min. turning radius
5018mm
Pressure of the system
14Mpa
Axle
Manufacturer
HangZhou Axle Factory
Main Transmission Type
Double Reduction
Final Reducer
Single Stage Final Reducer
Rated Loader of Axle
8.5t
Transmission System
Torque Converter
Model
YJ280
Type
Single-stage Three Elements
Max. Efficiency
84.40%
Inlet Pressure
1.3Mpa-1.5 Mpa
Outlet Pressure
0.25Mpa-0.3 Mpa
Cooling Method
Oil-cooling Pressure Circulation
Gearbox
Type
Fixed Shaft Power Transmission
Oil Pressure of Clutch
1373Kpa-1569 Kpa
Gears
Two Gears Ahead, Two Gears Astern
Max.Speed
22Km/h
Tyre
Model
16/70-20
Pressure of Front wheel
0.22 Mpa
Pressure of Back Wheel
0.22 Mpa
Brake System
Service Brake
Air Over Oil Caliper Brake
External Type
Self-regulation
Self-balance
Emergency Brake
Operation Power Implementing brake Manual Operation Power Terminating Brake
Hydraulic System
Digging Power of Excavator Grab
46.5KN
Digging Power of Dipper
31KN
Bucket Lifting Time
5.4S
Bucket Lowering Time
3.1S
Bucket Discharge Time
2.0S
Backhoe Loader: the backhoe loader also called a loader backhoe,is a heavy equipment vehicle that consists of a tractor fitted with a bucket on the front and a backhoe on the back. Due to its small size and versatility, backhoe loaders are very common in urban engineering and small construction projects (such as building a small house, fixing urban roads, etc.) as well as developing countries. This type of machine is similar to and derived from what is now known as a TLB (Tractor-Loader-Backhoe), which is to say, an agricultural tractor fitted with a front loader and rear backhoe attachment.
Packing & Shipping: We have been engaged in foreign trade for more than 18 years and have very rich experience in shipping. According to the past situation, each of our products is complete and delivered to customers as planned. Generally, For the WZ30-25 Backhoe loader , one set need 1 40H conainer, or 2 sets load into 1 40H container and 1 20 container. it also can load in the bulk ship, or Ro-on/Ro-off ship. it according your requirements
Attachments: Our backhoe loader can be with some more attachements excapt the standard bucket. for exmple the 4 in 1 bucket, Quick Change, Fork, Auger, Hamer, Grass Grab, Wooden Fork, Snow blade, sweaper, Rops And so on.
Our Service : Pre-sale service: To our customers, before you buy the equipments, we hope to understand your needs, according to your machine requirements and your budget; choose the right model for you, to ensure that you buy high-quality products at a lower price. At the same time, you are welcome to visit our factory in HangZhou, China; we will book hotels, air tickets and take you up from air port.
After-sale service: After the sale, we will properly arrange the transportation of the machine to ensure that the goods are safely delivered to your hands. At the same time, we will provide you with technical support 24 hours a day, or send engineers to CZPT the installation and operation. If there are any quality problems with the machine, we will solve it for you in the first time.
Factory View:
Here show some factory pictures to help you understand our company.
Exhibition: Here show you some exhibition pictures .
Certificate :
FAQ: Q1: Which country do you export to? Asia: Pakistan, Philippines, Thailand, Myanmar, Vietnam, Bangladesh, Kazakhstan, Turkmenistan, etc. Middle East: Iran, UAE, Jordan, Oman, Saudi Arabia, Syria, etc. Europe: Poland, Russia, Ukraine, Belarus, Bulgaria, etc. Africa: South Africa,Kenya,Congo,Ethiopia,Nigeria,Ghana,Algeria,Senegal,Tunisia,etc. South America: Paraguay, Colombia, Brazil, Peru, Chile, Cuba, Venezuela, etc. Oceania: Australia, etc.
Q2: What is the proportion of your products export? 90% of our products are exported to all over the world.
Q3: What is the payment term? We can discuss with you. Consider for long-term customers we are favorable payment terms TT, L/C, west union. It depends on the cooperation time, country and contract value.
Q4: What kind of logistic service do you supply? FOB, CIF, C&F
Q5: What spare parts can you supply? All kinds of spare parts of SUNYO JCM, SDLG, SHACMAN, SHXIHU (WEST LAKE) DIS.I, YTO, etc.
Drive shaft type
The driveshaft transfers torque from the engine to the wheels and is responsible for the smooth running of the vehicle. Its design had to compensate for differences in length and angle. It must also ensure perfect synchronization between its joints. The drive shaft should be made of high-grade materials to achieve the best balance of stiffness and elasticity. There are 3 main types of drive shafts. These include: end yokes, tube yokes and tapered shafts.
tube yoke
Tube yokes are shaft assemblies that use metallic materials as the main structural component. The yoke includes a uniform, substantially uniform wall thickness, a first end and an axially extending second end. The first diameter of the drive shaft is greater than the second diameter, and the yoke further includes a pair of opposing lugs extending from the second end. These lugs have holes at the ends for attaching the axle to the vehicle. By retrofitting the driveshaft tube end into a tube fork with seat. This valve seat transmits torque to the driveshaft tube. The fillet weld 28 enhances the torque transfer capability of the tube yoke. The yoke is usually made of aluminum alloy or metal material. It is also used to connect the drive shaft to the yoke. Various designs are possible. The QU40866 tube yoke is used with an external snap ring type universal joint. It has a cup diameter of 1-3/16″ and an overall width of 4½”. U-bolt kits are another option. It has threaded legs and locks to help secure the yoke to the drive shaft. Some performance cars and off-road vehicles use U-bolts. Yokes must be machined to accept U-bolts, and U-bolt kits are often the preferred accessory. The end yoke is the mechanical part that connects the drive shaft to the stub shaft. These yokes are usually designed for specific drivetrain components and can be customized to your needs. Pat’s drivetrain offers OEM replacement and custom flanged yokes. If your tractor uses PTO components, the cross and bearing kit is the perfect tool to make the connection. Additionally, cross and bearing kits help you match the correct yoke to the shaft. When choosing a yoke, be sure to measure the outside diameter of the U-joint cap and the inside diameter of the yoke ears. After taking the measurements, consult the cross and bearing identification drawings to make sure they match. While tube yokes are usually easy to replace, the best results come from a qualified machine shop. Dedicated driveshaft specialists can assemble and balance finished driveshafts. If you are unsure of a particular aspect, please refer to the TM3000 Driveshaft and Cardan Joint Service Manual for more information. You can also consult an excerpt from the TSB3510 manual for information on angle, vibration and runout. The sliding fork is another important part of the drive shaft. It can bend over rough terrain, allowing the U-joint to keep spinning in tougher conditions. If the slip yoke fails, you will not be able to drive and will clang. You need to replace it as soon as possible to avoid any dangerous driving conditions. So if you notice any dings, be sure to check the yoke. If you detect any vibrations, the drivetrain may need adjustment. It’s a simple process. First, rotate the driveshaft until you find the correct alignment between the tube yoke and the sliding yoke of the rear differential. If there is no noticeable vibration, you can wait for a while to resolve the problem. Keep in mind that it may be convenient to postpone repairs temporarily, but it may cause bigger problems later.
end yoke
If your driveshaft requires a new end yoke, CZPT has several drivetrain options. Our automotive end yoke inventory includes keyed and non-keyed options. If you need tapered or straight holes, we can also make them for you. A U-bolt is an industrial fastener that has U-shaped threads on its legs. They are often used to join 2 heads back to back. These are convenient options to help keep drivetrain components in place when driving over rough terrain, and are generally compatible with a variety of models. U-bolts require a specially machined yoke to accept them, so be sure to order the correct size. The sliding fork helps transfer power from the transfer case to the driveshaft. They slide in and out of the transfer case, allowing the u-joint to rotate. Sliding yokes or “slips” can be purchased separately. Whether you need a new 1 or just a few components to upgrade your driveshaft, 4 CZPT Parts will have the parts you need to repair your vehicle. The end yoke is a necessary part of the drive shaft. It connects the drive train and the mating flange. They are also used in auxiliary power equipment. CZPT’s drivetrains are stocked with a variety of flanged yokes for OEM applications and custom builds. You can also find flanged yokes for constant velocity joints in our extensive inventory. If you don’t want to modify your existing drivetrain, we can even make a custom yoke for you.
Chinese Brand New Construction Machinery SUNYO WZ30-25 model backhoe loader with famous engine and transmission. widely used and flexible operation. loverd by customers
The Backhoe Loader WZ30-25: WZ30-25 Backhoe loader, with CZPT YC4A105Z-T20 engine , power is100hp, chinese axle and Trans. With A/C, pilot control, Reversing video, hammer pipe , WZ30-25 Backhoe loader Operating weight7600kg, front bucket 1.2 m3, rated loading is 2.5tons. Rear CZPT bucket is 0.3 m3, It can use for loading and digging, 1 machine has 2 functions. can help you to save much more cost. and can do many kinds work for building road, and so on. It will bring you higher economic efficiency, Better profit income.
Main Performance Parameter of WZ30-25:
Overall Operating Weight
7640KG
Transport Dimension
mm L*W*H
6170×2268×3760
Wheel base
2370mm
Min. Ground Clearance
300mm
Bucket Capacity
1.0m3
Breakout Force
38KN
Loading Lifting Capacity
2500KG
Bucket Dumping Height
2770mm
Bucket Dumping Distance
925mm
Digging Depth
27mm
Backhoe Capacity
0.3m3
Max. CZPT Depth
4082mm
Swing Angle of Excavator Grab
190o
Max. Pulling Force
39KN
Engine
Model
YUCHAI YC4A105Z-T20
Type
In Line Direct injection Four-Stroke and Injection Combustion Chamber
Cylinder-Inside Diameter*Stroke
4-108×132
Rated Power
75KW
Rated Speed
2200r/min
Min. Fuel Consumption
≤230g/km.h
Max.Torque
≥400N.M/1500r/min
Displacement
4.8L
Steering System
Model of Steering Device
BZZ5-250
Steering Angle
±36 o
Min. turning radius
5018mm
Pressure of the system
14Mpa
Axle
Manufacturer
HangZhou Axle Factory
Main Transmission Type
Double Reduction
Final Reducer
Single Stage Final Reducer
Rated Loader of Axle
8.5t
Transmission System
Torque Converter
Model
YJ280
Type
Single-stage Three Elements
Max. Efficiency
84.40%
Inlet Pressure
1.3Mpa-1.5 Mpa
Outlet Pressure
0.25Mpa-0.3 Mpa
Cooling Method
Oil-cooling Pressure Circulation
Gearbox
Type
Fixed Shaft Power Transmission
Oil Pressure of Clutch
1373Kpa-1569 Kpa
Gears
Two Gears Ahead, Two Gears Astern
Max.Speed
22Km/h
Tyre
Model
16/70-20
Pressure of Front wheel
0.22 Mpa
Pressure of Back Wheel
0.22 Mpa
Brake System
Service Brake
Air Over Oil Caliper Brake
External Type
Self-regulation
Self-balance
Emergency Brake
Operation Power Implementing brake Manual Operation Power Terminating Brake
Hydraulic System
Digging Power of Excavator Grab
46.5KN
Digging Power of Dipper
31KN
Bucket Lifting Time
5.4S
Bucket Lowering Time
3.1S
Bucket Discharge Time
2.0S
Backhoe Loader: the backhoe loader also called a loader backhoe,is a heavy equipment vehicle that consists of a tractor fitted with a bucket on the front and a backhoe on the back. Due to its small size and versatility, backhoe loaders are very common in urban engineering and small construction projects (such as building a small house, fixing urban roads, etc.) as well as developing countries. This type of machine is similar to and derived from what is now known as a TLB (Tractor-Loader-Backhoe), which is to say, an agricultural tractor fitted with a front loader and rear backhoe attachment.
Packing & Shipping: We have been engaged in foreign trade for more than 18 years and have very rich experience in shipping. According to the past situation, each of our products is complete and delivered to customers as planned. Generally, For the WZ30-25 Backhoe loader , one set need 1 40H conainer, or 2 sets load into 1 40H container and 1 20 container. it also can load in the bulk ship, or Ro-on/Ro-off ship. it according your requirements
Attachments: Our backhoe loader can be with some more attachements excapt the standard bucket. for exmple the 4 in 1 bucket, Quick Change, Fork, Auger, Hamer, Grass Grab, Wooden Fork, Snow blade, sweaper, Rops And so on.
Our Service : Pre-sale service: To our customers, before you buy the equipments, we hope to understand your needs, according to your machine requirements and your budget; choose the right model for you, to ensure that you buy high-quality products at a lower price. At the same time, you are welcome to visit our factory in HangZhou, China; we will book hotels, air tickets and take you up from air port.
After-sale service: After the sale, we will properly arrange the transportation of the machine to ensure that the goods are safely delivered to your hands. At the same time, we will provide you with technical support 24 hours a day, or send engineers to CZPT the installation and operation. If there are any quality problems with the machine, we will solve it for you in the first time.
Factory View:
Here show some factory pictures to help you understand our company.
Exhibition: Here show you some exhibition pictures .
Certificate :
FAQ: Q1: Which country do you export to? Asia: Pakistan, Philippines, Thailand, Myanmar, Vietnam, Bangladesh, Kazakhstan, Turkmenistan, etc. Middle East: Iran, UAE, Jordan, Oman, Saudi Arabia, Syria, etc. Europe: Poland, Russia, Ukraine, Belarus, Bulgaria, etc. Africa: South Africa,Kenya,Congo,Ethiopia,Nigeria,Ghana,Algeria,Senegal,Tunisia,etc. South America: Paraguay, Colombia, Brazil, Peru, Chile, Cuba, Venezuela, etc. Oceania: Australia, etc.
Q2: What is the proportion of your products export? 90% of our products are exported to all over the world.
Q3: What is the payment term? We can discuss with you. Consider for long-term customers we are favorable payment terms TT, L/C, west union. It depends on the cooperation time, country and contract value.
Q4: What kind of logistic service do you supply? FOB, CIF, C&F
Q5: What spare parts can you supply? All kinds of spare parts of SUNYO JCM, SDLG, SHACMAN, SHXIHU (WEST LAKE) DIS.I, YTO, etc.
The Different Types of Splines in a Splined Shaft
A splined shaft is a machine component with internal and external splines. The splines are formed in 4 different ways: Involute, Parallel, Serrated, and Ball. You can learn more about each type of spline in this article. When choosing a splined shaft, be sure to choose the right 1 for your application. Read on to learn about the different types of splines and how they affect the shaft’s performance.
Involute splines
Involute splines in a splined shaft are used to secure and extend mechanical assemblies. They are smooth, inwardly curving grooves that resist separation during operation. A shaft with involute splines is often longer than the shaft itself. This feature allows for more axial movement. This is beneficial for many applications, especially in a gearbox. The involute spline is a shaped spline, similar to a parallel spline. It is angled and consists of teeth that create a spiral pattern that enables linear and rotatory motion. It is distinguished from other splines by the serrations on its flanks. It also has a flat top. It is a good option for couplers and other applications where angular movement is necessary. Involute splines are also called involute teeth because of their shape. They are flat on the top and curved on the sides. These teeth can be either internal or external. As a result, involute splines provide greater surface contact, which helps reduce stress and fatigue. Regardless of the shape, involute splines are generally easy to machine and fit. Involute splines are a type of splines that are used in splined shafts. These splines have different names, depending on their diameters. An example set of designations is for a 32-tooth male spline, a 2,500-tooth module, and a 30 degree pressure angle. An example of a female spline, a fillet root spline, is used to describe the diameter of the splined shaft. The effective tooth thickness of splines is dependent on the number of keyways and the type of spline. Involute splines in splined shafts should be designed to engage 25 to 50 percent of the spline teeth during the coupling. Involute splines should be able to withstand the load without cracking.
Parallel splines
Parallel splines are formed on a splined shaft by putting 1 or more teeth into another. The male spline is positioned at the center of the female spline. The teeth of the male spline are also parallel to the shaft axis, but a common misalignment causes the splines to roll and tilt. This is common in many industrial applications, and there are a number of ways to improve the performance of splines. Typically, parallel splines are used to reduce friction in a rotating part. The splines on a splined shaft are narrower on the end face than the interior, which makes them more prone to wear. This type of spline is used in a variety of industries, such as machinery, and it also allows for greater efficiency when transmitting torque. Involute splines on a splined shaft are the most common. They have equally spaced teeth, and are therefore less likely to crack due to fatigue. They also tend to be easy to cut and fit. However, they are not the best type of spline. It is important to understand the difference between parallel and involute splines before deciding on which spline to use. The difference between splined and involute splines is the size of the grooves. Involute splines are generally larger than parallel splines. These types of splines provide more torque to the gear teeth and reduce stress during operation. They are also more durable and have a longer life span. And because they are used on farm machinery, they are essential in this type of application.
Serrated splines
A Serrated Splined Shaft has several advantages. This type of shaft is highly adjustable. Its large number of teeth allows large torques, and its shorter tooth width allows for greater adjustment. These features make this type of shaft an ideal choice for applications where accuracy is critical. Listed below are some of the benefits of this type of shaft. These benefits are just a few of the advantages. Learn more about this type of shaft. The process of hobbing is inexpensive and highly accurate. It is useful for external spline shafts, but is not suitable for internal splines. This type of process forms synchronized shapes on the shaft, reducing the manufacturing cycle and stabilizing the relative phase between spline and thread. It uses a grinding wheel to shape the shaft. CZPT Manufacturing has a large inventory of Serrated Splined Shafts. The teeth of a Serrated Splined Shaft are designed to engage with the hub over the entire circumference of the shaft. The teeth of the shaft are spaced uniformly around the spline, creating a multiple-tooth point of contact over the entire length of the shaft. The results of these analyses are usually satisfactory. But there are some limitations. To begin with, the splines of the Serrated Splined Shaft should be chosen carefully. If the application requires large-scale analysis, it may be necessary to modify the design. The splines of the Serrated Splined Shaft are also used for other purposes. They can be used to transmit torque to another device. They also act as an anti-rotational device and function as a linear guide. Both the design and the type of splines determine the function of the Splined Shaft. In the automobile industry, they are used in vehicles, aerospace, earth-moving machinery, and many other industries.
Ball splines
The invention relates to a ball-spinned shaft. The shaft comprises a plurality of balls that are arranged in a series and are operatively coupled to a load path section. The balls are capable of rolling endlessly along the path. This invention also relates to a ball bearing. Here, a ball bearing is 1 of the many types of gears. The following discussion describes the features of a ball bearing. A ball-splined shaft assembly comprises a shaft with at least 1 ball-spline groove and a plurality of circumferential step grooves. The shaft is held in a first holding means that extends longitudinally and is rotatably held by a second holding means. Both the shaft and the first holding means are driven relative to 1 another by a first driving means. It is possible to manufacture a ball-splined shaft in a variety of ways. A ball-splined shaft features a nut with recirculating balls. The ball-splined nut rides in these grooves to provide linear motion while preventing rotation. A splined shaft with a nut that has recirculating balls can also provide rotary motion. A ball splined shaft also has higher load capacities than a ball bushing. For these reasons, ball splines are an excellent choice for many applications. In this invention, a pair of ball-spinned shafts are housed in a box under a carrier device 40. Each of the 2 shafts extends along a longitudinal line of arm 50. One end of each shaft is supported rotatably by a slide block 56. The slide block also has a support arm 58 that supports the center arm 50 in a cantilever fashion.
Sector no-go gage
A no-go gauge is a tool that checks the splined shaft for oversize. It is an effective way to determine the oversize condition of a splined shaft without removing the shaft. It measures external splines and serrations. The no-go gage is available in sizes ranging from 19mm to 130mm with a 25mm profile length. The sector no-go gage has 2 groups of diametrally opposed teeth. The space between them is manufactured to a maximum space width and the tooth thickness must be within a predetermined tolerance. This gage would be out of tolerance if the splines were measured with a pin. The dimensions of this splined shaft can be found in the respective ANSI or DIN standards. The go-no-go gage is useful for final inspection of thread pitch diameter. It is also useful for splined shafts and threaded nuts. The thread of a screw must match the contour of the go-no-go gage head to avoid a no-go condition. There is no substitute for a quality machine. It is an essential tool for any splined shaft and fastener manufacturer. The NO-GO gage can detect changes in tooth thickness. It can be calibrated under ISO17025 standards and has many advantages over a non-go gage. It also gives a visual reference of the thickness of a splined shaft. When the teeth match, the shaft is considered ready for installation. It is a critical process. In some cases, it is impossible to determine the precise length of the shaft spline. The 45-degree pressure angle is most commonly used for axles and torque-delivering members. This pressure angle is the most economical in terms of tool life, but the splines will not roll neatly like a 30 degree angle. The 45-degree spline is more likely to fall off larger than the other two. Oftentimes, it will also have a crowned look. The 37.5 degree pressure angle is a compromise between the other 2 pressure angles. It is often used when the splined shaft material is harder than usual.
Chinese Brand New Construction Machinery SUNYO WZ30-25 model backhoe loader with famous engine and transmission. widely used and flexible operation. loverd by customers
The Backhoe Loader WZ30-25: WZ30-25 Backhoe loader, with CZPT YC4A105Z-T20 engine , power is100hp, chinese axle and Trans. With A/C, pilot control, Reversing video, hammer pipe , WZ30-25 Backhoe loader Operating weight7600kg, front bucket 1.2 m3, rated loading is 2.5tons. Rear CZPT bucket is 0.3 m3, It can use for loading and digging, 1 machine has 2 functions. can help you to save much more cost. and can do many kinds work for building road, and so on. It will bring you higher economic efficiency, Better profit income.
Main Performance Parameter of WZ30-25:
Overall Operating Weight
7640KG
Transport Dimension
mm L*W*H
6170×2268×3760
Wheel base
2370mm
Min. Ground Clearance
300mm
Bucket Capacity
1.0m3
Breakout Force
38KN
Loading Lifting Capacity
2500KG
Bucket Dumping Height
2770mm
Bucket Dumping Distance
925mm
Digging Depth
27mm
Backhoe Capacity
0.3m3
Max. CZPT Depth
4082mm
Swing Angle of Excavator Grab
190o
Max. Pulling Force
39KN
Engine
Model
YUCHAI YC4A105Z-T20
Type
In Line Direct injection Four-Stroke and Injection Combustion Chamber
Cylinder-Inside Diameter*Stroke
4-108×132
Rated Power
75KW
Rated Speed
2200r/min
Min. Fuel Consumption
≤230g/km.h
Max.Torque
≥400N.M/1500r/min
Displacement
4.8L
Steering System
Model of Steering Device
BZZ5-250
Steering Angle
±36 o
Min. turning radius
5018mm
Pressure of the system
14Mpa
Axle
Manufacturer
HangZhou Axle Factory
Main Transmission Type
Double Reduction
Final Reducer
Single Stage Final Reducer
Rated Loader of Axle
8.5t
Transmission System
Torque Converter
Model
YJ280
Type
Single-stage Three Elements
Max. Efficiency
84.40%
Inlet Pressure
1.3Mpa-1.5 Mpa
Outlet Pressure
0.25Mpa-0.3 Mpa
Cooling Method
Oil-cooling Pressure Circulation
Gearbox
Type
Fixed Shaft Power Transmission
Oil Pressure of Clutch
1373Kpa-1569 Kpa
Gears
Two Gears Ahead, Two Gears Astern
Max.Speed
22Km/h
Tyre
Model
16/70-20
Pressure of Front wheel
0.22 Mpa
Pressure of Back Wheel
0.22 Mpa
Brake System
Service Brake
Air Over Oil Caliper Brake
External Type
Self-regulation
Self-balance
Emergency Brake
Operation Power Implementing brake Manual Operation Power Terminating Brake
Hydraulic System
Digging Power of Excavator Grab
46.5KN
Digging Power of Dipper
31KN
Bucket Lifting Time
5.4S
Bucket Lowering Time
3.1S
Bucket Discharge Time
2.0S
Backhoe Loader: the backhoe loader also called a loader backhoe,is a heavy equipment vehicle that consists of a tractor fitted with a bucket on the front and a backhoe on the back. Due to its small size and versatility, backhoe loaders are very common in urban engineering and small construction projects (such as building a small house, fixing urban roads, etc.) as well as developing countries. This type of machine is similar to and derived from what is now known as a TLB (Tractor-Loader-Backhoe), which is to say, an agricultural tractor fitted with a front loader and rear backhoe attachment.
Packing & Shipping: We have been engaged in foreign trade for more than 18 years and have very rich experience in shipping. According to the past situation, each of our products is complete and delivered to customers as planned. Generally, For the WZ30-25 Backhoe loader , one set need 1 40H conainer, or 2 sets load into 1 40H container and 1 20 container. it also can load in the bulk ship, or Ro-on/Ro-off ship. it according your requirements
Attachments: Our backhoe loader can be with some more attachements excapt the standard bucket. for exmple the 4 in 1 bucket, Quick Change, Fork, Auger, Hamer, Grass Grab, Wooden Fork, Snow blade, sweaper, Rops And so on.
Our Service : Pre-sale service: To our customers, before you buy the equipments, we hope to understand your needs, according to your machine requirements and your budget; choose the right model for you, to ensure that you buy high-quality products at a lower price. At the same time, you are welcome to visit our factory in HangZhou, China; we will book hotels, air tickets and take you up from air port.
After-sale service: After the sale, we will properly arrange the transportation of the machine to ensure that the goods are safely delivered to your hands. At the same time, we will provide you with technical support 24 hours a day, or send engineers to CZPT the installation and operation. If there are any quality problems with the machine, we will solve it for you in the first time.
Factory View:
Here show some factory pictures to help you understand our company.
Exhibition: Here show you some exhibition pictures .
Certificate :
FAQ: Q1: Which country do you export to? Asia: Pakistan, Philippines, Thailand, Myanmar, Vietnam, Bangladesh, Kazakhstan, Turkmenistan, etc. Middle East: Iran, UAE, Jordan, Oman, Saudi Arabia, Syria, etc. Europe: Poland, Russia, Ukraine, Belarus, Bulgaria, etc. Africa: South Africa,Kenya,Congo,Ethiopia,Nigeria,Ghana,Algeria,Senegal,Tunisia,etc. South America: Paraguay, Colombia, Brazil, Peru, Chile, Cuba, Venezuela, etc. Oceania: Australia, etc.
Q2: What is the proportion of your products export? 90% of our products are exported to all over the world.
Q3: What is the payment term? We can discuss with you. Consider for long-term customers we are favorable payment terms TT, L/C, west union. It depends on the cooperation time, country and contract value.
Q4: What kind of logistic service do you supply? FOB, CIF, C&F
Q5: What spare parts can you supply? All kinds of spare parts of SUNYO JCM, SDLG, SHACMAN, SHXIHU (WEST LAKE) DIS.I, YTO, etc.
How to Select a Worm Shaft and Gear For Your Project
You will learn about axial pitch PX and tooth parameters for a Worm Shaft 20 and Gear 22. Detailed information on these 2 components will help you select a suitable Worm Shaft. Read on to learn more….and get your hands on the most advanced gearbox ever created! Here are some tips for selecting a Worm Shaft and Gear for your project!…and a few things to keep in mind.
Gear 22
The tooth profile of Gear 22 on Worm Shaft 20 differs from that of a conventional gear. This is because the teeth of Gear 22 are concave, allowing for better interaction with the threads of the worm shaft 20. The worm’s lead angle causes the worm to self-lock, preventing reverse motion. However, this self-locking mechanism is not entirely dependable. Worm gears are used in numerous industrial applications, from elevators to fishing reels and automotive power steering. The new gear is installed on a shaft that is secured in an oil seal. To install a new gear, you first need to remove the old gear. Next, you need to unscrew the 2 bolts that hold the gear onto the shaft. Next, you should remove the bearing carrier from the output shaft. Once the worm gear is removed, you need to unscrew the retaining ring. After that, install the bearing cones and the shaft spacer. Make sure that the shaft is tightened properly, but do not over-tighten the plug. To prevent premature failures, use the right lubricant for the type of worm gear. A high viscosity oil is required for the sliding action of worm gears. In two-thirds of applications, lubricants were insufficient. If the worm is lightly loaded, a low-viscosity oil may be sufficient. Otherwise, a high-viscosity oil is necessary to keep the worm gears in good condition. Another option is to vary the number of teeth around the gear 22 to reduce the output shaft’s speed. This can be done by setting a specific ratio (for example, 5 or 10 times the motor’s speed) and modifying the worm’s dedendum accordingly. This process will reduce the output shaft’s speed to the desired level. The worm’s dedendum should be adapted to the desired axial pitch.
Worm Shaft 20
When selecting a worm gear, consider the following things to consider. These are high-performance, low-noise gears. They are durable, low-temperature, and long-lasting. Worm gears are widely used in numerous industries and have numerous benefits. Listed below are just some of their benefits. Read on for more information. Worm gears can be difficult to maintain, but with proper maintenance, they can be very reliable. The worm shaft is configured to be supported in a frame 24. The size of the frame 24 is determined by the center distance between the worm shaft 20 and the output shaft 16. The worm shaft and gear 22 may not come in contact or interfere with 1 another if they are not configured properly. For these reasons, proper assembly is essential. However, if the worm shaft 20 is not properly installed, the assembly will not function. Another important consideration is the worm material. Some worm gears have brass wheels, which may cause corrosion in the worm. In addition, sulfur-phosphorous EP gear oil activates on the brass wheel. These materials can cause significant loss of load surface. Worm gears should be installed with high-quality lubricant to prevent these problems. There is also a need to choose a material that is high-viscosity and has low friction. Speed reducers can include many different worm shafts, and each speed reducer will require different ratios. In this case, the speed reducer manufacturer can provide different worm shafts with different thread patterns. The different thread patterns will correspond to different gear ratios. Regardless of the gear ratio, each worm shaft is manufactured from a blank with the desired thread. It will not be difficult to find 1 that fits your needs.
Gear 22’s axial pitch PX
The axial pitch of a worm gear is calculated by using the nominal center distance and the Addendum Factor, a constant. The Center Distance is the distance from the center of the gear to the worm wheel. The worm wheel pitch is also called the worm pitch. Both the dimension and the pitch diameter are taken into consideration when calculating the axial pitch PX for a Gear 22. The axial pitch, or lead angle, of a worm gear determines how effective it is. The higher the lead angle, the less efficient the gear. Lead angles are directly related to the worm gear’s load capacity. In particular, the angle of the lead is proportional to the length of the stress area on the worm wheel teeth. A worm gear’s load capacity is directly proportional to the amount of root bending stress introduced by cantilever action. A worm with a lead angle of g is almost identical to a helical gear with a helix angle of 90 deg. In the present invention, an improved method of manufacturing worm shafts is described. The method entails determining the desired axial pitch PX for each reduction ratio and frame size. The axial pitch is established by a method of manufacturing a worm shaft that has a thread that corresponds to the desired gear ratio. A gear is a rotating assembly of parts that are made up of teeth and a worm. In addition to the axial pitch, a worm gear’s shaft can also be made from different materials. The material used for the gear’s worms is an important consideration in its selection. Worm gears are usually made of steel, which is stronger and corrosion-resistant than other materials. They also require lubrication and may have ground teeth to reduce friction. In addition, worm gears are often quieter than other gears.
Gear 22’s tooth parameters
A study of Gear 22’s tooth parameters revealed that the worm shaft’s deflection depends on various factors. The parameters of the worm gear were varied to account for the worm gear size, pressure angle, and size factor. In addition, the number of worm threads was changed. These parameters are varied based on the ISO/TS 14521 reference gear. This study validates the developed numerical calculation model using experimental results from Lutz and FEM calculations of worm gear shafts. Using the results from the Lutz test, we can obtain the deflection of the worm shaft using the calculation method of ISO/TS 14521 and DIN 3996. The calculation of the bending diameter of a worm shaft according to the formulas given in AGMA 6022 and DIN 3996 show a good correlation with test results. However, the calculation of the worm shaft using the root diameter of the worm uses a different parameter to calculate the equivalent bending diameter. The bending stiffness of a worm shaft is calculated through a finite element model (FEM). Using a FEM simulation, the deflection of a worm shaft can be calculated from its toothing parameters. The deflection can be considered for a complete gearbox system as stiffness of the worm toothing is considered. And finally, based on this study, a correction factor is developed. For an ideal worm gear, the number of thread starts is proportional to the size of the worm. The worm’s diameter and toothing factor are calculated from Equation 9, which is a formula for the worm gear’s root inertia. The distance between the main axes and the worm shaft is determined by Equation 14.
Gear 22’s deflection
To study the effect of toothing parameters on the deflection of a worm shaft, we used a finite element method. The parameters considered are tooth height, pressure angle, size factor, and number of worm threads. Each of these parameters has a different influence on worm shaft bending. Table 1 shows the parameter variations for a reference gear (Gear 22) and a different toothing model. The worm gear size and number of threads determine the deflection of the worm shaft. The calculation method of ISO/TS 14521 is based on the boundary conditions of the Lutz test setup. This method calculates the deflection of the worm shaft using the finite element method. The experimentally measured shafts were compared to the simulation results. The test results and the correction factor were compared to verify that the calculated deflection is comparable to the measured deflection. The FEM analysis indicates the effect of tooth parameters on worm shaft bending. Gear 22’s deflection on Worm Shaft can be explained by the ratio of tooth force to mass. The ratio of worm tooth force to mass determines the torque. The ratio between the 2 parameters is the rotational speed. The ratio of worm gear tooth forces to worm shaft mass determines the deflection of worm gears. The deflection of a worm gear has an impact on worm shaft bending capacity, efficiency, and NVH. The continuous development of power density has been achieved through advancements in bronze materials, lubricants, and manufacturing quality. The main axes of moment of inertia are indicated with the letters A-N. The three-dimensional graphs are identical for the seven-threaded and one-threaded worms. The diagrams also show the axial profiles of each gear. In addition, the main axes of moment of inertia are indicated by a white cross.
SUNYO / Chinese High Quality/ WZ30-25 Backhoe Loader with Famous Brand Engine and Transmission. Widely used, flexible operation
The Backhoe Loader WZ30-25: WZ30-25 Backhoe loader, with CZPT YC4A105Z-T20 engine , power is100hp, chinese axle and Trans. With A/C, pilot control, Reversing video, hammer pipe , WZ30-25 Backhoe loader Operating weight7600kg, front bucket 1.2 m3, rated loading is 2.5tons. Rear CZPT bucket is 0.3 m3, It can use for loading and digging, 1 machine has 2 functions. can help you to save much more cost. and can do many kinds work for building road, and so on. It will bring you higher economic efficiency, Better profit income.
Main Performance Parameter of WZ30-25:
Overall Operating Weight
7640KG
Transport Dimension
mm L*W*H
6170×2268×3760
Wheel base
2370mm
Min. Ground Clearance
300mm
Bucket Capacity
1.0m3
Breakout Force
38KN
Loading Lifting Capacity
2500KG
Bucket Dumping Height
2770mm
Bucket Dumping Distance
925mm
Digging Depth
27mm
Backhoe Capacity
0.3m3
Max. CZPT Depth
4082mm
Swing Angle of Excavator Grab
190o
Max. Pulling Force
39KN
Engine
Model
YUCHAI YC4A105Z-T20
Type
In Line Direct injection Four-Stroke and Injection Combustion Chamber
Cylinder-Inside Diameter*Stroke
4-108×132
Rated Power
75KW
Rated Speed
2200r/min
Min. Fuel Consumption
≤230g/km.h
Max.Torque
≥400N.M/1500r/min
Displacement
4.8L
Steering System
Model of Steering Device
BZZ5-250
Steering Angle
±36 o
Min. turning radius
5018mm
Pressure of the system
14Mpa
Axle
Manufacturer
HangZhou Axle Factory
Main Transmission Type
Double Reduction
Final Reducer
Single Stage Final Reducer
Rated Loader of Axle
8.5t
Transmission System
Torque Converter
Model
YJ280
Type
Single-stage Three Elements
Max. Efficiency
84.40%
Inlet Pressure
1.3Mpa-1.5 Mpa
Outlet Pressure
0.25Mpa-0.3 Mpa
Cooling Method
Oil-cooling Pressure Circulation
Gearbox
Type
Fixed Shaft Power Transmission
Oil Pressure of Clutch
1373Kpa-1569 Kpa
Gears
Two Gears Ahead, Two Gears Astern
Max.Speed
22Km/h
Tyre
Model
16/70-20
Pressure of Front wheel
0.22 Mpa
Pressure of Back Wheel
0.22 Mpa
Brake System
Service Brake
Air Over Oil Caliper Brake
External Type
Self-regulation
Self-balance
Emergency Brake
Operation Power Implementing brake Manual Operation Power Terminating Brake
Hydraulic System
Digging Power of Excavator Grab
46.5KN
Digging Power of Dipper
31KN
Bucket Lifting Time
5.4S
Bucket Lowering Time
3.1S
Bucket Discharge Time
2.0S
Backhoe Loader: the backhoe loader also called a loader backhoe,is a heavy equipment vehicle that consists of a tractor fitted with a bucket on the front and a backhoe on the back. Due to its small size and versatility, backhoe loaders are very common in urban engineering and small construction projects (such as building a small house, fixing urban roads, etc.) as well as developing countries. This type of machine is similar to and derived from what is now known as a TLB (Tractor-Loader-Backhoe), which is to say, an agricultural tractor fitted with a front loader and rear backhoe attachment.
Packing & Shipping: We have been engaged in foreign trade for more than 18 years and have very rich experience in shipping. According to the past situation, each of our products is complete and delivered to customers as planned. Generally, For the WZ30-25 Backhoe loader , one set need 1 40H conainer, or 2 sets load into 1 40H container and 1 20 container. it also can load in the bulk ship, or Ro-on/Ro-off ship. it according your requirements
Attachments: Our backhoe loader can be with some more attachements excapt the standard bucket. for exmple the 4 in 1 bucket, Quick Change, Fork, Auger, Hamer, Grass Grab, Wooden Fork, Snow blade, sweaper, Rops And so on.
Our Service : Pre-sale service: To our customers, before you buy the equipments, we hope to understand your needs, according to your machine requirements and your budget; choose the right model for you, to ensure that you buy high-quality products at a lower price. At the same time, you are welcome to visit our factory in HangZhou, China; we will book hotels, air tickets and take you up from air port.
After-sale service: After the sale, we will properly arrange the transportation of the machine to ensure that the goods are safely delivered to your hands. At the same time, we will provide you with technical support 24 hours a day, or send engineers to CZPT the installation and operation. If there are any quality problems with the machine, we will solve it for you in the first time.
Factory View:
Here show some factory pictures to help you understand our company.
Exhibition: Here show you some exhibition pictures .
Certificate :
FAQ: Q1: Which country do you export to? Asia: Pakistan, Philippines, Thailand, Myanmar, Vietnam, Bangladesh, Kazakhstan, Turkmenistan, etc. Middle East: Iran, UAE, Jordan, Oman, Saudi Arabia, Syria, etc. Europe: Poland, Russia, Ukraine, Belarus, Bulgaria, etc. Africa: South Africa,Kenya,Congo,Ethiopia,Nigeria,Ghana,Algeria,Senegal,Tunisia,etc. South America: Paraguay, Colombia, Brazil, Peru, Chile, Cuba, Venezuela, etc. Oceania: Australia, etc.
Q2: What is the proportion of your products export? 90% of our products are exported to all over the world.
Q3: What is the payment term? We can discuss with you. Consider for long-term customers we are favorable payment terms TT, L/C, west union. It depends on the cooperation time, country and contract value.
Q4: What kind of logistic service do you supply? FOB, CIF, C&F
Q5: What spare parts can you supply? All kinds of spare parts of SUNYO JCM, SDLG, SHACMAN, SHXIHU (WEST LAKE) DIS.I, YTO, etc.
What Are the Advantages of a Splined Shaft?
If you are looking for the right splined shaft for your machine, you should know a few important things. First, what type of material should be used? Stainless steel is usually the most appropriate choice, because of its ability to offer low noise and fatigue failure. Secondly, it can be machined using a slotting or shaping machine. Lastly, it will ensure smooth motion. So, what are the advantages of a splined shaft? Stainless steel is the best material for splined shafts
When choosing a splined shaft, you should consider its hardness, quality, and finish. Stainless steel has superior corrosion and wear resistance. Carbon steel is another good material for splined shafts. Carbon steel has a shallow carbon content (about 1.7%), which makes it more malleable and helps ensure smooth motion. But if you’re not willing to spend the money on stainless steel, consider other options. There are 2 main types of splines: parallel splines and crowned splines. Involute splines have parallel grooves and allow linear and rotary motion. Helical splines have involute teeth and are oriented at an angle. This type allows for many teeth on the shaft and minimizes the stress concentration in the stationary joint. Large evenly spaced splines are widely used in hydraulic systems, drivetrains, and machine tools. They are typically made from carbon steel (CR10) and stainless steel (AISI 304). This material is durable and meets the requirements of ISO 14-B, formerly DIN 5463-B. Splined shafts are typically made of stainless steel or C45 steel, though there are many other materials available. Stainless steel is the best material for a splined shaft. This metal is also incredibly affordable. In most cases, stainless steel is the best choice for these shafts because it offers the best corrosion resistance. There are many different types of splined shafts, and each 1 is suited for a particular application. There are also many different types of stainless steel, so choose stainless steel if you want the best quality. For those looking for high-quality splined shafts, CZPT Spline Shafts offer many benefits. They can reduce costs, improve positional accuracy, and reduce friction. With the CZPT TFE coating, splined shafts can reduce energy and heat buildup, and extend the life of your products. And, they’re easy to install – all you need to do is install them.
They provide low noise, low wear and fatigue failure
The splines in a splined shaft are composed of 2 main parts: the spline root fillet and the spline relief. The spline root fillet is the most critical part, because fatigue failure starts there and propagates to the relief. The spline relief is more susceptible to fatigue failure because of its involute tooth shape, which offers a lower stress to the shaft and has a smaller area of contact. The fatigue life of splined shafts is determined by measuring the S-N curve. This is also known as the Wohler curve, and it is the relationship between stress amplitude and number of cycles. It depends on the material, geometry and way of loading. It can be obtained from a physical test on a uniform material specimen under a constant amplitude load. Approximations for low-alloy steel parts can be made using a lower-alloy steel material. Splined shafts provide low noise, minimal wear and fatigue failure. However, some mechanical transmission elements need to be removed from the shaft during assembly and manufacturing processes. The shafts must still be capable of relative axial movement for functional purposes. As such, good spline joints are essential to high-quality torque transmission, minimal backlash, and low noise. The major failure modes of spline shafts include fretting corrosion, tooth breakage, and fatigue failure. The outer disc carrier spline is susceptible to tensile stress and fatigue failure. High customer demands for low noise and low wear and fatigue failure makes splined shafts an excellent choice. A fractured spline gear coupling was received for analysis. It was installed near the top of a filter shaft and inserted into the gearbox motor. The service history was unknown. The fractured spline gear coupling had longitudinally cracked and arrested at the termination of the spline gear teeth. The spline gear teeth also exhibited wear and deformation. A new spline coupling method detects fault propagation in hollow cylindrical splined shafts. A spline coupling is fabricated using an AE method with the spline section unrolled into a metal plate of the same thickness as the cylinder wall. In addition, the spline coupling is misaligned, which puts significant concentration on the spline teeth. This further accelerates the rate of fretting fatigue and wear. A spline joint should be lubricated after 25 hours of operation. Frequent lubrication can increase maintenance costs and cause downtime. Moreover, the lubricant may retain abrasive particles at the interfaces. In some cases, lubricants can even cause misalignment, leading to premature failure. So, the lubrication of a spline coupling is vital in ensuring proper functioning of the shaft. The design of a spline coupling can be optimized to enhance its wear resistance and reliability. Surface treatments, loads, and rotation affect the friction properties of a spline coupling. In addition, a finite element method was developed to predict wear of a floating spline coupling. This method is feasible and provides a reliable basis for predicting the wear and fatigue life of a spline coupling.
They can be machined using a slotting or shaping machine
Machines can be used to shape splined shafts in a variety of industries. They are useful in many applications, including gearboxes, braking systems, and axles. A slotted shaft can be manipulated in several ways, including hobbling, broaching, and slotting. In addition to shaping, splines are also useful in reducing bar diameter. When using a slotting or shaping machine, the workpiece is held against a pedestal that has a uniform thickness. The machine is equipped with a stand column and limiting column (Figure 1), each positioned perpendicular to the upper surface of the pedestal. The limiting column axis is located on the same line as the stand column. During the slotting or shaping process, the tool is fed in and out until the desired space is achieved. One process involves cutting splines into a shaft. Straddle milling, spline shaping, and spline cutting are 2 common processes used to create splined shafts. Straddle milling involves a fixed indexing fixture that holds the shaft steady, while rotating milling cutters cut the groove in the length of the shaft. Several passes are required to ensure uniformity throughout the spline. Splines are a type of gear. The ridges or teeth on the drive shaft mesh with grooves in the mating piece. A splined shaft allows the transmission of torque to a mate piece while maximizing the power transfer. Splines are used in heavy vehicles, construction, agriculture, and massive earthmoving machinery. Splines are used in virtually every type of rotary motion, from axles to transmission systems. They also offer better fatigue life and reliability. Slotting or shaping machines can also be used to shape splined shafts. Slotting machines are often used to machine splined shafts, because it is easier to make them with these machines. Using a slotting or shaping machine can result in splined shafts of different sizes. It is important to follow a set of spline standards to ensure your parts are manufactured to the highest standards. A milling machine is another option for producing splined shafts. A spline shaft can be set up between 2 centers in an indexing fixture. Two side milling cutters are mounted on an arbor and a spacer and shims are inserted between them. The arbor and cutters are then mounted to a milling machine spindle. To make sure the cutters center themselves over the splined shaft, an adjustment must be made to the spindle of the machine. The machining process is very different for internal and external splines. External splines can be broached, shaped, milled, or hobbed, while internal splines cannot. These machines use hard alloy, but they are not as good for internal splines. A machine with a slotting mechanism is necessary for these operations.
4 ton diesel forklift price with Japanese diesel engine price for sale
VIFT forklift advantages: 1.Power System. VIFT forklifts are all with reliable power accessories,like CZPT Engine. All accessories are support by domestic and world famous brand, high quality, reliable after-sales.We follow the strict environmental design,all engines match the China or even higher emission standards. 2.Super comfortable. VIFT forklifts are all with comfortable driving space,adjustable steering wheel and seats,super low and non-slip step,suspension steering axle,storing space,and convenient LCD panel. 3.VIFT forklift can equip with different attachments according to your need.
Engine Option
Manufacture
Model
No.of Cylinder
Displacement(CC)
Rated Output/r.p.m(kw)
Rated Torque/r.p.m(N.m)
Bore*Stroke
ISUZU
C240NKFC-01
4
2369
35.4/25/8822 0571 -57521229
Fax: 86~/8822 0571 -57521229
Customer Support Tel:
Add: No 858, FengGao Road , Xihu (West Lake) Dis. district , ZheJiang , China .
VIFT American Representative:
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How to Choose the Right Worm Shaft
You might be curious to know how to choose the right Worm Shaft. In this article, you will learn about worm modules with the same pitch diameter, Double-thread worm gears, and Self-locking worm drive. Once you have chosen the proper Worm Shaft, you will find it easier to use the equipment in your home. There are many advantages to selecting the right Worm Shaft. Read on to learn more.
Concave shape
The concave shape of a worm’s shaft is an important characteristic for the design of a worm gearing. Worm gearings can be found in a wide range of shapes, and the basic profile parameters are available in professional and firm literature. These parameters are used in geometry calculations, and a selection of the right worm gearing for a particular application can be based on these requirements. The thread profile of a worm is defined by the tangent to the axis of its main cylinder. The teeth are shaped in a straight line with a slightly concave shape along the sides. It resembles a helical gear, and the profile of the worm itself is straight. This type of gearing is often used when the number of teeth is greater than a certain limit. The geometry of a worm gear depends on the type and manufacturer. In the earliest days, worms were made similar to simple screw threads, and could be chased on a lathe. During this time, the worm was often made with straight-sided tools to produce threads in the acme plane. Later, grinding techniques improved the thread finish and reduced distortions resulting from hardening. When a worm gearing has multiple teeth, the pitch angle is a key parameter. A greater pitch angle increases efficiency. If you want to increase the pitch angle without increasing the number of teeth, you can replace a worm pair with a different number of thread starts. The helix angle must increase while the center distance remains constant. A higher pitch angle, however, is almost never used for power transmissions. The minimum number of gear teeth depends on the angle of pressure at zero gearing correction. The diameter of the worm is d1, and is based on a known module value, mx or mn. Generally, larger values of m are assigned to larger modules. And a smaller number of teeth is called a low pitch angle. In case of a low pitch angle, spiral gearing is used. The pitch angle of the worm gear is smaller than 10 degrees.
Multiple-thread worms
Multi-thread worms can be divided into sets of one, two, or 4 threads. The ratio is determined by the number of threads on each set and the number of teeth on the apparatus. The most common worm thread counts are 1,2,4, and 6. To find out how many threads you have, count the start and end of each thread and divide by two. Using this method, you will get the correct thread count every time. The tangent plane of a worm’s pitch profile changes as the worm moves lengthwise along the thread. The lead angle is greatest at the throat, and decreases on both sides. The curvature radius r” varies proportionally with the worm’s radius, or pitch angle at the considered point. Hence, the worm leads angle, r, is increased with decreased inclination and decreases with increasing inclination. Multi-thread worms are characterized by a constant leverage between the gear surface and the worm threads. The ratio of worm-tooth surfaces to the worm’s length varies, which enables the wormgear to be adjusted in the same direction. To optimize the gear contact between the worm and gear, the tangent relationship between the 2 surfaces is optimal. The efficiency of worm gear drives is largely dependent on the helix angle of the worm. Multiple thread worms can improve the efficiency of the worm gear drive by as much as 25 to 50% compared to single-thread worms. Worm gears are made of bronze, which reduces friction and heat on the worm’s teeth. A specialized machine can cut the worm gears for maximum efficiency.
Double-thread worm gears
In many different applications, worm gears are used to drive a worm wheel. These gears are unique in that the worm cannot be reversed by the power applied to the worm wheel. Because of their self-locking properties, they can be used to prevent reversing motion, although this is not a dependable function. Applications for worm gears include hoisting equipment, elevators, chain blocks, fishing reels, and automotive power steering. Because of their compact size, these gears are often used in applications with limited space. Worm sets typically exhibit more wear than other types of gears, and this means that they require more limited contact patterns in new parts. Worm wheel teeth are concave, making it difficult to measure tooth thickness with pins, balls, and gear tooth calipers. To measure tooth thickness, however, you can measure backlash, a measurement of the spacing between teeth in a gear. Backlash can vary from 1 worm gear to another, so it is important to check the backlash at several points. If the backlash is different in 2 places, this indicates that the teeth may have different spacing. Single-thread worm gears provide high speed reduction but lower efficiency. A multi-thread worm gear can provide high efficiency and high speed, but this comes with a trade-off in terms of horsepower. However, there are many other applications for worm gears. In addition to heavy-duty applications, they are often used in light-duty gearboxes for a variety of functions. When used in conjunction with double-thread worms, they allow for a substantial speed reduction in 1 step. Stainless-steel worm gears can be used in damp environments. The worm gear is not susceptible to rust and is ideal for wet and damp environments. The worm wheel’s smooth surfaces make cleaning them easy. However, they do require lubricants. The most common lubricant for worm gears is mineral oil. This lubricant is designed to protect the worm drive.
Self-locking worm drive
A self-locking worm drive prevents the platform from moving backward when the motor stops. A dynamic self-locking worm drive is also possible but does not include a holding brake. This type of self-locking worm drive is not susceptible to vibrations, but may rattle if released. In addition, it may require an additional brake to keep the platform from moving. A positive brake may be necessary for safety. A self-locking worm drive does not allow for the interchangeability of the driven and driving gears. This is unlike spur gear trains that allow both to interchange positions. In a self-locking worm drive, the driving gear is always engaged and the driven gear remains stationary. The drive mechanism locks automatically when the worm is operated in the wrong manner. Several sources of information on self-locking worm gears include the Machinery’s Handbook. A self-locking worm drive is not difficult to build and has a great mechanical advantage. In fact, the output of a self-locking worm drive cannot be backdriven by the input shaft. DIYers can build a self-locking worm drive by modifying threaded rods and off-the-shelf gears. However, it is easier to make a ratchet and pawl mechanism, and is significantly less expensive. However, it is important to understand that you can only drive 1 worm at a time. Another advantage of a self-locking worm drive is the fact that it is not possible to interchange the input and output shafts. This is a major benefit of using such a mechanism, as you can achieve high gear reduction without increasing the size of the gear box. If you’re thinking about buying a self-locking worm gear for a specific application, consider the following tips to make the right choice. An enveloping worm gear set is best for applications requiring high accuracy and efficiency, and minimum backlash. Its teeth are shaped differently, and the worm’s threads are modified to increase surface contact. They are more expensive to manufacture than their single-start counterparts, but this type is best for applications where accuracy is crucial. The worm drive is also a great option for heavy trucks because of their large size and high-torque capacity.
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Engine Option
Manufacture
Model
No.of Cylinder
Displacement(CC)
Rated Output/r.p.m(kw)
Rated Torque/r.p.m(N.m)
Bore*Stroke
ISUZU
C240NKFC-01
4
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How to Select a Worm Shaft and Gear For Your Project
You will learn about axial pitch PX and tooth parameters for a Worm Shaft 20 and Gear 22. Detailed information on these 2 components will help you select a suitable Worm Shaft. Read on to learn more….and get your hands on the most advanced gearbox ever created! Here are some tips for selecting a Worm Shaft and Gear for your project!…and a few things to keep in mind.
Gear 22
The tooth profile of Gear 22 on Worm Shaft 20 differs from that of a conventional gear. This is because the teeth of Gear 22 are concave, allowing for better interaction with the threads of the worm shaft 20. The worm’s lead angle causes the worm to self-lock, preventing reverse motion. However, this self-locking mechanism is not entirely dependable. Worm gears are used in numerous industrial applications, from elevators to fishing reels and automotive power steering. The new gear is installed on a shaft that is secured in an oil seal. To install a new gear, you first need to remove the old gear. Next, you need to unscrew the 2 bolts that hold the gear onto the shaft. Next, you should remove the bearing carrier from the output shaft. Once the worm gear is removed, you need to unscrew the retaining ring. After that, install the bearing cones and the shaft spacer. Make sure that the shaft is tightened properly, but do not over-tighten the plug. To prevent premature failures, use the right lubricant for the type of worm gear. A high viscosity oil is required for the sliding action of worm gears. In two-thirds of applications, lubricants were insufficient. If the worm is lightly loaded, a low-viscosity oil may be sufficient. Otherwise, a high-viscosity oil is necessary to keep the worm gears in good condition. Another option is to vary the number of teeth around the gear 22 to reduce the output shaft’s speed. This can be done by setting a specific ratio (for example, 5 or 10 times the motor’s speed) and modifying the worm’s dedendum accordingly. This process will reduce the output shaft’s speed to the desired level. The worm’s dedendum should be adapted to the desired axial pitch.
Worm Shaft 20
When selecting a worm gear, consider the following things to consider. These are high-performance, low-noise gears. They are durable, low-temperature, and long-lasting. Worm gears are widely used in numerous industries and have numerous benefits. Listed below are just some of their benefits. Read on for more information. Worm gears can be difficult to maintain, but with proper maintenance, they can be very reliable. The worm shaft is configured to be supported in a frame 24. The size of the frame 24 is determined by the center distance between the worm shaft 20 and the output shaft 16. The worm shaft and gear 22 may not come in contact or interfere with 1 another if they are not configured properly. For these reasons, proper assembly is essential. However, if the worm shaft 20 is not properly installed, the assembly will not function. Another important consideration is the worm material. Some worm gears have brass wheels, which may cause corrosion in the worm. In addition, sulfur-phosphorous EP gear oil activates on the brass wheel. These materials can cause significant loss of load surface. Worm gears should be installed with high-quality lubricant to prevent these problems. There is also a need to choose a material that is high-viscosity and has low friction. Speed reducers can include many different worm shafts, and each speed reducer will require different ratios. In this case, the speed reducer manufacturer can provide different worm shafts with different thread patterns. The different thread patterns will correspond to different gear ratios. Regardless of the gear ratio, each worm shaft is manufactured from a blank with the desired thread. It will not be difficult to find 1 that fits your needs.
Gear 22’s axial pitch PX
The axial pitch of a worm gear is calculated by using the nominal center distance and the Addendum Factor, a constant. The Center Distance is the distance from the center of the gear to the worm wheel. The worm wheel pitch is also called the worm pitch. Both the dimension and the pitch diameter are taken into consideration when calculating the axial pitch PX for a Gear 22. The axial pitch, or lead angle, of a worm gear determines how effective it is. The higher the lead angle, the less efficient the gear. Lead angles are directly related to the worm gear’s load capacity. In particular, the angle of the lead is proportional to the length of the stress area on the worm wheel teeth. A worm gear’s load capacity is directly proportional to the amount of root bending stress introduced by cantilever action. A worm with a lead angle of g is almost identical to a helical gear with a helix angle of 90 deg. In the present invention, an improved method of manufacturing worm shafts is described. The method entails determining the desired axial pitch PX for each reduction ratio and frame size. The axial pitch is established by a method of manufacturing a worm shaft that has a thread that corresponds to the desired gear ratio. A gear is a rotating assembly of parts that are made up of teeth and a worm. In addition to the axial pitch, a worm gear’s shaft can also be made from different materials. The material used for the gear’s worms is an important consideration in its selection. Worm gears are usually made of steel, which is stronger and corrosion-resistant than other materials. They also require lubrication and may have ground teeth to reduce friction. In addition, worm gears are often quieter than other gears.
Gear 22’s tooth parameters
A study of Gear 22’s tooth parameters revealed that the worm shaft’s deflection depends on various factors. The parameters of the worm gear were varied to account for the worm gear size, pressure angle, and size factor. In addition, the number of worm threads was changed. These parameters are varied based on the ISO/TS 14521 reference gear. This study validates the developed numerical calculation model using experimental results from Lutz and FEM calculations of worm gear shafts. Using the results from the Lutz test, we can obtain the deflection of the worm shaft using the calculation method of ISO/TS 14521 and DIN 3996. The calculation of the bending diameter of a worm shaft according to the formulas given in AGMA 6022 and DIN 3996 show a good correlation with test results. However, the calculation of the worm shaft using the root diameter of the worm uses a different parameter to calculate the equivalent bending diameter. The bending stiffness of a worm shaft is calculated through a finite element model (FEM). Using a FEM simulation, the deflection of a worm shaft can be calculated from its toothing parameters. The deflection can be considered for a complete gearbox system as stiffness of the worm toothing is considered. And finally, based on this study, a correction factor is developed. For an ideal worm gear, the number of thread starts is proportional to the size of the worm. The worm’s diameter and toothing factor are calculated from Equation 9, which is a formula for the worm gear’s root inertia. The distance between the main axes and the worm shaft is determined by Equation 14.
Gear 22’s deflection
To study the effect of toothing parameters on the deflection of a worm shaft, we used a finite element method. The parameters considered are tooth height, pressure angle, size factor, and number of worm threads. Each of these parameters has a different influence on worm shaft bending. Table 1 shows the parameter variations for a reference gear (Gear 22) and a different toothing model. The worm gear size and number of threads determine the deflection of the worm shaft. The calculation method of ISO/TS 14521 is based on the boundary conditions of the Lutz test setup. This method calculates the deflection of the worm shaft using the finite element method. The experimentally measured shafts were compared to the simulation results. The test results and the correction factor were compared to verify that the calculated deflection is comparable to the measured deflection. The FEM analysis indicates the effect of tooth parameters on worm shaft bending. Gear 22’s deflection on Worm Shaft can be explained by the ratio of tooth force to mass. The ratio of worm tooth force to mass determines the torque. The ratio between the 2 parameters is the rotational speed. The ratio of worm gear tooth forces to worm shaft mass determines the deflection of worm gears. The deflection of a worm gear has an impact on worm shaft bending capacity, efficiency, and NVH. The continuous development of power density has been achieved through advancements in bronze materials, lubricants, and manufacturing quality. The main axes of moment of inertia are indicated with the letters A-N. The three-dimensional graphs are identical for the seven-threaded and one-threaded worms. The diagrams also show the axial profiles of each gear. In addition, the main axes of moment of inertia are indicated by a white cross.
