A hydraulic wet clutch with a buffer device
By introducing a buffer device and an accumulator into the wet clutch, the problem of torque fluctuation caused by changes in engine speed is solved, the stability of torque transmission is achieved, and the working performance of the tractor is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAMUSI JICHI TRACTOR MFG
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-26
Smart Images
Figure CN224283276U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hydraulic clutch systems, and in particular to a hydraulic wet clutch with a buffer device. Background Technology
[0002] The main function of the wet clutch commonly used in tractors is to transmit power from the drive shaft to the driven shaft by hydraulic oil pushing the piston on the drive plate, which in turn presses the driven plate against a number of friction plates and a disc spring that acts as a return mechanism. Ideally, power transmission in a wet clutch should be instantaneous. However, in reality, there is a certain amount of time required from the hydraulic oil entering the piston to pressing the driven plate and friction plates against the driven shaft, and then to the driven shaft rotating. Furthermore, the flow rate of the hydraulic oil supplied by the hydraulic pump fluctuates significantly with changes in engine speed. This causes fluctuations in the torque transmitted from the engine to the gearbox, thus affecting the tractor's operating performance. Utility Model Content
[0003] In view of the problem that torque transmission fluctuates when the engine speed changes during the application of wet clutches on tractors, the purpose of this utility model is to provide a hydraulic wet clutch with a buffer device.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A hydraulic wet clutch with a buffer device includes: a hydraulic wet clutch, a three-way connector 24, a hydraulic oil pipe 25, and an accumulator 26. The lateral interface of the three-way connector 24 is connected to the accumulator 26 through the hydraulic oil pipe 25. One end of the three-way connector 24 is connected to the internal oil passage 17 of the hydraulic wet clutch, and the other end of the three-way connector 24 is an oil inlet, which is connected to the hydraulic oil inlet pipeline.
[0006] The aforementioned hydraulic wet clutch with a buffer device includes: a drive shaft 2, a clutch housing 3, a piston 4, a pressure plate 5, a driven friction plate 6, a driven hub 7, a first bearing 10, a first snap ring 16, and a driven disc 31. The drive shaft 2, clutch housing 3, piston 4, pressure plate 5, driven friction plate 6, driven hub 7, first bearing 10, first snap ring 16, and driven disc 31 are coaxially arranged. The clutch housing 3 is installed in the middle of the drive shaft 2, and the piston 4 is sleeved on the drive shaft 2 and located inside the clutch housing 3. The front end face of piston 4 and the interior of clutch housing 3 form a hydraulic oil chamber, which is connected to the three-way connector 24 through the internal oil passage 17; the first bearing 10 is installed at the rear end of the drive shaft 2 through the first snap ring 16, the driven hub 7 and the drive shaft 2 are rotatably connected through the first bearing 10, the driven plate 31 is sleeved on the driven hub 7 and slidably installed in the clutch housing 3, and multiple pressure plates 5 and multiple driven friction plates 6 are provided between the front end face of the driven plate 31 and the rear end face of piston 4, and the multiple pressure plates 5 and multiple driven friction plates 6 are arranged alternately;
[0007] The inner wall of the clutch housing 3 is provided with a first tooth structure, and the outer wall of the driven hub 7 is provided with a second tooth structure. The external tooth structure on each pressure plate 5 meshes with the first tooth structure, and the internal tooth structure on each driven friction plate 6 meshes with the second tooth structure.
[0008] The aforementioned hydraulic wet clutch with a buffer device further includes: an end cover, an input shaft 1, a second bearing 19, a second snap ring 20, and a bushing 21. The input shaft 1 is rotatably mounted inside the end cover via the second bearing 19. A bushing 21 is provided between the outer wall of the input shaft 1 and the inner wall of the end cover. The bushing 21 is used to limit the front end of the second bearing 19. The second snap ring 20 is installed inside the end cover and is used to limit the rear end of the second bearing 19.
[0009] In the aforementioned hydraulic wet clutch with a buffer device, the outer wall of the rear end of the input shaft 1 is provided with a third tooth structure, and the inner wall of the front end of the drive shaft 2 is provided with a fourth tooth structure, wherein the third tooth structure and the fourth tooth structure mesh with each other.
[0010] The aforementioned hydraulic wet clutch with a buffer device includes a three-way connector 24, one end of which is connected to the outer wall of the end cover. The end cover has a first oil passage connecting the three-way connector 24 and its inner wall. The bushing 21 has a second oil passage connecting its inner and outer sides. The outer wall of the bushing 21 has a first annular oil groove. Both the first and second oil passages communicate with the first annular oil groove. The input shaft 1 has a fourth oil passage along its axial direction. The input shaft 1 also has a third and a fifth oil passage. All are connected to the fourth oil passage. The outer wall of the input shaft 1 is provided with a second annular oil groove and a third annular oil groove. The second oil passage and the third oil passage are both connected to the second annular oil groove. The fifth oil passage is connected to the third annular oil groove. The drive shaft 2 is provided with a sixth oil passage. The third annular oil groove and the hydraulic oil chamber are connected through the sixth oil passage. The internal oil passage 17 is formed by the first oil passage, the first annular oil groove, the second oil passage, the second annular oil groove, the third oil passage, the fourth oil passage, the fifth oil passage, the third annular oil groove and the sixth oil passage connected in sequence.
[0011] The aforementioned hydraulic wet clutch with a buffer device further includes: a first sealing ring 14 and a second sealing ring 15. The first sealing ring 14 is mounted on the drive shaft 2 and located between the drive shaft 2 and the piston 4. The second sealing ring 15 is mounted on the piston 4 and located between the clutch housing 3 and the piston 4. The first sealing ring 14 and the second sealing ring 15 are used to seal the hydraulic oil chamber.
[0012] The aforementioned hydraulic wet clutch with a buffer device further includes: a third sealing ring 18 and a fourth sealing ring 22. Two third sealing rings 18 are installed on the input shaft 1, and the two third sealing rings 18 are symmetrically arranged on the front and rear sides of the fifth oil passage. The input shaft 1 and the drive shaft 2 are sealed by the two third sealing rings 18. Two fourth sealing rings 22 are installed on the input shaft 1, and the two fourth sealing rings 22 are symmetrically arranged on the front and rear sides of the third oil passage. The input shaft 1 and the bushing 21 are sealed by the two fourth sealing rings 22.
[0013] The aforementioned hydraulic wet clutch with a buffer device further includes: a fifth sealing ring 23, two fifth sealing rings 23 are installed on the bushing 21, the two fifth sealing rings 23 are symmetrically arranged on the front and rear sides of the second oil passage, and the bushing 21 and the end cover are sealed by the two fifth sealing rings 23.
[0014] The aforementioned hydraulic wet clutch with a buffer device further includes a limiting washer 12 and a wear ring 13. Both the limiting washer 12 and the wear ring 13 are installed inside the clutch housing 3. The limiting washer 12 is used to limit the rear end face of the driven plate 31, and the wear ring 13 is located between the inner wall of the clutch housing 3 and the outer wall of the piston 4.
[0015] The aforementioned hydraulic wet clutch with a buffer device further includes: a spline sleeve 8, a driven shaft 9, and a locking nut 11. The spline sleeve 8 is installed at the front end of the driven shaft 9 via the locking nut 11. The outer wall of the spline sleeve 8 is provided with a fifth tooth structure, and the inner wall of the rear end of the driven hub 7 is provided with a sixth tooth structure. The fifth tooth structure and the sixth tooth structure mesh with each other.
[0016] Because this utility model employs the aforementioned technology, it has the following positive effects compared to existing technologies:
[0017] (1) This utility model achieves the effect of controlling pressure changes by connecting an accumulator through a three-way connector, so that the hydraulic wet clutch will not experience large fluctuations in torque transmission due to changes in engine speed. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a hydraulic wet clutch with a buffer device according to this utility model.
[0019] Figure 2 yes Figure 1 A magnified view of the internal structure of the clutch housing.
[0020] In the attached diagram: 1. Input shaft; 2. Drive shaft; 3. Clutch housing; 4. Piston; 5. Pressure plate; 6. Driven friction plate; 7. Driven hub; 8. Spline sleeve; 9. Driven shaft; 10. First bearing; 11. Locking nut; 12. Limit washer; 13. Wear ring; 14. First sealing ring; 15. Second sealing ring; 16. First snap ring; 17. Internal oil passage; 18. Third sealing ring; 19. Second bearing; 20. Second snap ring; 21. Bushing; 22. Fourth sealing ring; 23. Fifth sealing ring; 24. T-joint; 25. Hydraulic oil pipe; 26. Accumulator; 31. Driven plate. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.
[0022] Please refer to Figure 1 and Figure 2As shown, a hydraulic wet clutch with a buffer device is illustrated, comprising: a hydraulic wet clutch, a three-way connector 24, a hydraulic oil pipe 25, and an accumulator 26. The lateral interface of the three-way connector 24 is connected to the accumulator 26 via the hydraulic oil pipe 25. One end of the three-way connector 24 is connected to the internal oil passage 17 of the hydraulic wet clutch, and the other end of the three-way connector 24 is an oil inlet, which is connected to the hydraulic oil inlet pipeline.
[0023] Furthermore, in a preferred embodiment, the hydraulic wet clutch includes: a drive shaft 2, a clutch housing 3, a piston 4, a pressure plate 5, a driven friction plate 6, a driven hub 7, a first bearing 10, a first snap ring 16, and a driven disc 31. The drive shaft 2, clutch housing 3, piston 4, pressure plate 5, driven friction plate 6, driven hub 7, first bearing 10, first snap ring 16, and driven disc 31 are coaxially arranged. The clutch housing 3 is installed in the middle of the drive shaft 2, and the piston 4 is sleeved on the drive shaft 2 and located inside the clutch housing 3. The front of the piston 4... The end face and the interior of the clutch housing 3 enclose a hydraulic oil chamber, which is connected to the three-way connector 24 through an internal oil passage 17; the first bearing 10 is mounted on the rear end of the drive shaft 2 through the first snap ring 16, the driven hub 7 and the drive shaft 2 are rotatably connected through the first bearing 10, the driven plate 31 is sleeved on the driven hub 7 and slidably mounted in the clutch housing 3, and multiple pressure plates 5 and multiple driven friction plates 6 are provided between the front end face of the driven plate 31 and the rear end face of the piston 4, and the multiple pressure plates 5 and multiple driven friction plates 6 are arranged alternately;
[0024] The inner wall of the clutch housing 3 is provided with a first tooth structure, and the outer wall of the driven hub 7 is provided with a second tooth structure. The external tooth structure on each pressure plate 5 meshes with the first tooth structure, and the internal tooth structure on each driven friction plate 6 meshes with the second tooth structure.
[0025] Furthermore, in a preferred embodiment, the hydraulic wet clutch further includes: an end cover, an input shaft 1, a second bearing 19, a second snap ring 20, and a bushing 21. The input shaft 1 is rotatably mounted inside the end cover via the second bearing 19. A bushing 21 is provided between the outer wall of the input shaft 1 and the inner wall of the end cover. The bushing 21 is used to limit the front end of the second bearing 19. The second snap ring 20 is installed inside the end cover and is used to limit the rear end of the second bearing 19.
[0026] Furthermore, in a preferred embodiment, the outer wall of the rear end of the input shaft 1 is provided with a third tooth structure, and the inner wall of the front end of the drive shaft 2 is provided with a fourth tooth structure, the third tooth structure and the fourth tooth structure meshing with each other.
[0027] Furthermore, in a preferred embodiment, one end of the tee connector 24 is connected to the outer wall of the end cover. The end cover has a first oil passage connecting the tee connector 24 and its inner wall. The bushing 21 has a second oil passage connecting its inner and outer sides. The outer wall of the bushing 21 has a first annular oil groove. The first and second oil passages are both connected to the first annular oil groove. The axis of the input shaft 1 has a fourth oil passage along its axial direction. The input shaft 1 has a third and a fifth oil passage. The third and fifth oil passages are both connected to the fourth oil passage. The outer wall of the input shaft 1 has a second and a third annular oil groove. The second and third oil passages are both connected to the second annular oil groove. The fifth oil passage is connected to the third annular oil groove. The drive shaft 2 has a sixth oil passage. The third annular oil groove and the hydraulic oil chamber are connected through the sixth oil passage. The internal oil circuit 17 is formed by the sequential connection of the first oil passage, the first annular oil groove, the second oil passage, the second annular oil groove, the third oil passage, the fourth oil passage, the fifth oil passage, the third annular oil groove, and the sixth oil passage.
[0028] Furthermore, in a preferred embodiment, the hydraulic wet clutch further includes: a first sealing ring 14 and a second sealing ring 15. The first sealing ring 14 is mounted on the drive shaft 2 and located between the drive shaft 2 and the piston 4. The second sealing ring 15 is mounted on the piston 4 and located between the clutch housing 3 and the piston 4. The first sealing ring 14 and the second sealing ring 15 are used to seal the hydraulic oil chamber.
[0029] Furthermore, in a preferred embodiment, the hydraulic wet clutch further includes: a third sealing ring 18 and a fourth sealing ring 22. Two third sealing rings 18 are installed on the input shaft 1, and the two third sealing rings 18 are symmetrically arranged on the front and rear sides of the fifth oil passage. The input shaft 1 and the drive shaft 2 are sealed by the two third sealing rings 18. Two fourth sealing rings 22 are installed on the input shaft 1, and the two fourth sealing rings 22 are symmetrically arranged on the front and rear sides of the third oil passage. The input shaft 1 and the bushing 21 are sealed by the two fourth sealing rings 22.
[0030] Furthermore, in a preferred embodiment, the hydraulic wet clutch further includes: a fifth sealing ring 23, two fifth sealing rings 23 are installed on the bushing 21, the two fifth sealing rings 23 are symmetrically arranged on the front and rear sides of the second oil passage, and the bushing 21 and the end cover are sealed by the two fifth sealing rings 23.
[0031] Furthermore, in a preferred embodiment, the hydraulic wet clutch further includes: a limiting washer 12 and a wear ring 13, both of which are installed inside the clutch housing 3. The limiting washer 12 is used to limit the rear end face of the driven plate 31, and the wear ring 13 is located between the inner wall of the clutch housing 3 and the outer wall of the piston 4.
[0032] Furthermore, in a preferred embodiment, the hydraulic wet clutch further includes: a spline sleeve 8, a driven shaft 9, and a locking nut 11. The spline sleeve 8 is installed at the front end of the driven shaft 9 via the locking nut 11. The outer wall of the spline sleeve 8 is provided with a fifth tooth structure, and the inner wall of the rear end of the driven hub 7 is provided with a sixth tooth structure. The fifth tooth structure and the sixth tooth structure mesh with each other.
[0033] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.
[0034] Based on the above, this utility model also has the following embodiments:
[0035] In a further embodiment of this utility model, the hydraulic wet clutch consists of a drive shaft 2, a clutch housing 3, a piston 4, a pressure plate 5, driven friction plates 6, a driven hub 7, a first bearing 10, a first snap ring 16, and a driven disc 31. The hydraulic wet clutch has an internal oil passage 17. The front end face of the piston 4 and the interior of the clutch housing 3 form a hydraulic oil chamber. The hydraulic oil chamber and the internal oil passage 17 are connected. By injecting hydraulic oil into the hydraulic oil chamber through the internal oil passage 17, the piston 4 can be pushed to move backward along the axis of the drive shaft 2, pressing multiple pressure plates 5 and multiple driven friction plates 6. By increasing the pressure on the contact surfaces between the multiple pressure plates 5 and multiple driven friction plates 6, the friction between the multiple pressure plates 5 and multiple driven friction plates 6 is increased, causing the clutch housing 3 to drive the driven hub 7 to rotate together.
[0036] In a further embodiment of this utility model, multiple pressure plates 5 are mounted on the driven hub 7 and can rotate freely on the driven hub 7. The outer teeth of the multiple pressure plates 5 mesh with the inner teeth on the clutch housing 3, and the clutch housing 3 can drive the multiple pressure plates 5 to rotate synchronously.
[0037] In a further embodiment of this utility model, the internal teeth of a plurality of driven friction plates 6 mesh with the external teeth on the driven hub 7, and the driven hub 7 is rotatably mounted on the rear end of the drive shaft 2 via the first bearing 10, and the plurality of driven friction plates 6 can drive the driven hub 7 to rotate synchronously.
[0038] In a further embodiment of this utility model, when multiple pressure plates 5 and multiple driven friction plates 6 are in a pressed state, under the action of friction, multiple pressure plates 5 drive multiple driven friction plates 6 to rotate, thereby realizing that the clutch housing 3 drives the driven hub 7 to rotate.
[0039] In a further embodiment of this utility model, the drive shaft 2 and the input shaft 1 are meshed and driven. The clutch housing 3 is installed on the drive shaft 2. The input shaft 1 drives the drive shaft 2 and the clutch housing 3 to rotate synchronously. The front end face of the piston 4 and the interior of the clutch housing 3 enclose a hydraulic oil chamber. The driven plate 31 is installed inside the clutch housing 3. Multiple pressure plates 5 and multiple driven friction plates 6 are located between the piston 4 and the driven plate 31. By injecting hydraulic oil into the hydraulic oil chamber, the piston 4 is pushed to move backward and press the multiple pressure plates 5 and multiple driven friction plates 6, which drives the driven hub 7 to rotate. The spline sleeve 8 is installed at the end of the driven shaft 9 through two locking nuts 11. The internal teeth of the driven hub 7 and the external teeth of the spline sleeve 8 mesh and drive. The driven hub 7 drives the spline sleeve 8 to rotate synchronously, which in turn drives the driven shaft 9 to rotate synchronously. The spline sleeve 8 and the driven shaft 9 can be connected by a key or by internal and external tooth meshing.
[0040] In a further embodiment of this utility model, a wear-resistant ring 13 is provided between the clutch housing 3 and the piston 4, which effectively reduces the wear on the piston 4 during the rotation of the clutch housing 3.
[0041] In a further embodiment of this utility model, the internal oil passage 17 is formed by sequentially connecting a first oil passage, a first annular oil groove, a second oil passage, a second annular oil groove, a third oil passage, a fourth oil passage, a fifth oil passage, a third annular oil groove, and a sixth oil passage. Sealing rings are provided on the front and rear sides of the first annular oil groove, the second annular oil groove, and the third annular oil groove to prevent hydraulic oil leakage and affect the normal operation of the equipment.
[0042] In a further embodiment of this utility model, a second sealing ring 15 is installed on the outer wall of the front end of the piston 4, and a first sealing ring 14 is disposed on the inner wall of the rear end of the piston 4. By arranging the second sealing ring 15 and the first sealing ring 14, the hydraulic oil chamber is sealed to prevent hydraulic oil leakage and affect the normal operation of the equipment.
[0043] In a further embodiment of this utility model, by setting a first annular oil groove, a second annular oil groove and a third annular oil groove, the internal oil passage 17 can still be kept in a connected state during the synchronous rotation of the input shaft 1, which drives the drive shaft 2 and the clutch housing 3, so as to ensure that the hydraulic oil is stably supplied to the hydraulic oil chamber through the internal oil passage 17.
[0044] In a further embodiment of this utility model, the first sealing ring 14, the second sealing ring 15, the third sealing ring 18, the fourth sealing ring 22, and the fifth sealing ring 23 are all oil seals.
[0045] In a further embodiment of this utility model, a spline meshing transmission is adopted between the input shaft 1 and the drive shaft 2 to ensure the stability of the transmission. During the operation of the input shaft 1, there is an unavoidable slight movement along the axial direction, i.e., axial movement. The spline meshing transmission can reserve the sliding distance between the input shaft 1 and the drive shaft 2 along the axial direction, reduce the damage to the equipment caused by axial movement, improve the service life, and ensure the stable operation of the equipment.
[0046] In a further embodiment of this utility model, the second bearing 19 is a single-row cylindrical roller bearing, specifically an NJ type inner ring single-flange cylindrical roller bearing. The inner ring has a flange on one side, allowing unidirectional axial displacement. The outer ring of the NJ type bearing has integral flanges on both sides. The bearing ring can move in one axial direction and restrict the other direction. This is suitable for situations where the input shaft 1 moves axially, ensuring that when the input shaft 1 moves axially, it can still stably drive the input to the drive shaft 2 to rotate, thus ensuring the stability of the transmission.
[0047] In a further embodiment of this utility model, the internal teeth of the driven hub 7 and the external teeth of the spline sleeve 8 mesh to ensure the stability of the transmission. Its structural principle is the same as that between the input shaft 1 and the drive shaft 2.
[0048] In a further embodiment of this invention, the spline is a key component in mechanical transmission used to transmit torque and power. It achieves precise connection through the convex and concave tooth structure on the shaft and hub, and is widely used in automobiles, aerospace, industrial equipment, and other fields. Compared to traditional single-key connections, the spline, due to its multi-tooth meshing design, possesses higher load-bearing capacity, more uniform stress distribution, and stronger torsional resistance, significantly improving the reliability and lifespan of the transmission system.
[0049] In a further embodiment of this utility model, the inlet of the internal oil circuit 17, the accumulator 26, and the oil supply circuit are connected via a three-way connector 24. The accumulator 26 is an energy storage device in a hydraulic-pneumatic system. It converts the energy in the system into compressible energy or potential energy at appropriate times and stores it. When the system needs it, it converts the compressible energy or potential energy into hydraulic or pneumatic energy and releases it to replenish the system. When the system pressure increases instantaneously, it can absorb this energy to ensure the normal pressure of the entire system. Hydraulic oil is an incompressible liquid; therefore, it is impossible to store pressure energy using hydraulic oil alone. Other media must be used to convert and store pressure energy. For example, a bladder-type gas accumulator developed using the compressible properties of gas (nitrogen) is a device for storing hydraulic oil. The bladder-type accumulator consists of an oil section and a gas section with a gas seal. The oil around the bladder is connected to the oil circuit. When the pressure increases, the oil enters the accumulator, and the gas is compressed until the system pipeline pressure stops rising; when the pipeline pressure decreases, the compressed air expands and forces the oil back into the circuit, thereby slowing down the decrease in pipeline pressure.
[0050] In a further embodiment of this utility model, the hydraulic wet clutch is a device that uses hydraulic oil to push the piston 4 on the drive shaft 2 to press the driven friction plate 6 on the driven hub 7, thereby driving the driven hub 7 and the driven shaft 9 to rotate. When hydraulic oil enters the hydraulic oil chamber between the clutch housing 3 and the piston 4 fixed on the drive shaft 2 through the oil inlet of the three-way connector 24 and the internal oil passage 17, the driven friction plate 6, which has an internal spline, is installed on the external spline of the driven hub 7. The driven hub 7 is connected to the driven shaft 9 through the internal and external splines of the spline sleeve 8. When the pressurized oil pushes the piston 4 to move backward and press the pressure plate 5, the pressure plate 5 presses the driven friction plate 6, thereby transmitting power from the input shaft 1 to the driven shaft 9. Ideally, the power transmission should be completed instantaneously. However, in reality, it takes a certain amount of time from the hydraulic oil entering the hydraulic oil chamber to the piston 4 pressing the pressure plate 5 and the driven friction plate 6 to driving the driven shaft 9 to rotate. Moreover, the flow rate of the hydraulic oil supplied by the hydraulic pump also fluctuates greatly when the engine speed changes. This can cause fluctuations in the torque transmitted from the engine to the gearbox, which in turn affects the tractor's performance.
[0051] In a further embodiment of this utility model, an accumulator 26 connected by a three-way connector 24 is used to achieve the effect of controlling pressure changes, so that the hydraulic wet clutch will not experience large fluctuations in torque transmission due to changes in engine speed.
[0052] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A hydraulic wet clutch with a buffer device, characterized in that, include: The hydraulic wet clutch, the three-way connector (24), the hydraulic oil pipe (25) and the accumulator (26) are connected. The side interface of the three-way connector (24) is connected to the accumulator (26) through the hydraulic oil pipe (25). One end interface of the three-way connector (24) is connected to the internal oil circuit (17) of the hydraulic wet clutch. The other end interface of the three-way connector (24) is the oil inlet, which is connected to the hydraulic oil inlet pipeline.
2. The hydraulic wet clutch with a buffer device according to claim 1, characterized in that, The hydraulic wet clutch includes: a drive shaft (2), a clutch housing (3), a piston (4), a pressure plate (5), a driven friction plate (6), a driven hub (7), a first bearing (10), a first snap ring (16), and a driven disc (31). The drive shaft (2), clutch housing (3), piston (4), pressure plate (5), driven friction plate (6), driven hub (7), first bearing (10), first snap ring (16), and driven disc (31) are coaxially arranged. The clutch housing (3) is installed in the middle of the drive shaft (2), and the piston (4) is sleeved on the drive shaft (2) and located inside the clutch housing (3). The front of the piston (4) The end face and the interior of the clutch housing (3) enclose each other to form a hydraulic oil chamber. The hydraulic oil chamber and the three-way connector (24) are connected through the internal oil passage (17). The first bearing (10) is installed at the rear end of the drive shaft (2) through the first snap ring (16). The driven wheel hub (7) and the drive shaft (2) are rotatably connected through the first bearing (10). The driven plate (31) is sleeved on the driven wheel hub (7) and slidably installed in the clutch housing (3). Multiple pressure plates (5) and multiple driven friction plates (6) are provided between the front end face of the driven plate (31) and the rear end face of the piston (4). The multiple pressure plates (5) and multiple driven friction plates (6) are arranged alternately. The inner wall of the clutch housing (3) is provided with a first tooth structure, and the outer wall of the driven hub (7) is provided with a second tooth structure. The external tooth structure on each pressure plate (5) meshes with the first tooth structure, and the internal tooth structure on each driven friction plate (6) meshes with the second tooth structure.
3. The hydraulic wet clutch with a buffer device according to claim 2, characterized in that, The hydraulic wet clutch further includes: an end cover, an input shaft (1), a second bearing (19), a second snap ring (20), and a bushing (21). The input shaft (1) is rotatably mounted inside the end cover via the second bearing (19). A bushing (21) is provided between the outer wall of the input shaft (1) and the inner wall of the end cover. The bushing (21) is used to limit the front end of the second bearing (19). The second snap ring (20) is installed inside the end cover and is used to limit the rear end of the second bearing (19).
4. The hydraulic wet clutch with a buffer device according to claim 3, characterized in that, The outer wall of the rear end of the input shaft (1) is provided with a third tooth structure, and the inner wall of the front end of the drive shaft (2) is provided with a fourth tooth structure. The third tooth structure and the fourth tooth structure mesh with each other.
5. The hydraulic wet clutch with a buffer device according to claim 4, characterized in that, One end of the three-way connector (24) is connected to the outer wall of the end cap. The end cap has a first oil passage connecting the three-way connector (24) and its inner wall. The bushing (21) has a second oil passage connecting its inner and outer sides. The outer wall of the bushing (21) has a first annular oil groove. The first and second oil passages are both connected to the first annular oil groove. The input shaft (1) has a fourth oil passage along its axial direction. The input shaft (1) has a third and a fifth oil passage. The third and fifth oil passages are both connected to the fourth oil passage. The outer wall of the input shaft (1) is provided with a second annular oil groove and a third annular oil groove. The second oil passage and the third oil passage are both connected to the second annular oil groove. The fifth oil passage is connected to the third annular oil groove. The drive shaft (2) is provided with a sixth oil passage. The third annular oil groove and the hydraulic oil chamber are connected through the sixth oil passage. The internal oil passage (17) is formed by the first oil passage, the first annular oil groove, the second oil passage, the second annular oil groove, the third oil passage, the fourth oil passage, the fifth oil passage, the third annular oil groove and the sixth oil passage connected in sequence.
6. The hydraulic wet clutch with a buffer device according to claim 5, characterized in that, The hydraulic wet clutch further includes a first sealing ring (14) and a second sealing ring (15). The first sealing ring (14) is installed on the drive shaft (2) and located between the drive shaft (2) and the piston (4). The second sealing ring (15) is installed on the piston (4) and located between the clutch housing (3) and the piston (4). The first sealing ring (14) and the second sealing ring (15) are used to seal the hydraulic oil chamber.
7. The hydraulic wet clutch with a buffer device according to claim 6, characterized in that, The hydraulic wet clutch further includes: a third sealing ring (18) and a fourth sealing ring (22). Two third sealing rings (18) are installed on the input shaft (1). The two third sealing rings (18) are symmetrically arranged on the front and rear sides of the fifth oil passage. The input shaft (1) and the drive shaft (2) are sealed by the two third sealing rings (18). Two fourth sealing rings (22) are installed on the input shaft (1). The two fourth sealing rings (22) are symmetrically arranged on the front and rear sides of the third oil passage. The input shaft (1) and the bushing (21) are sealed by the two fourth sealing rings (22).
8. The hydraulic wet clutch with a buffer device according to claim 7, characterized in that, The hydraulic wet clutch also includes: a fifth sealing ring (23), two fifth sealing rings (23) are installed on the bushing (21), the two fifth sealing rings (23) are symmetrically arranged on the front and rear sides of the second oil passage, and the bushing (21) and the end cover are sealed by the two fifth sealing rings (23).
9. The hydraulic wet clutch with a buffer device according to claim 8, characterized in that, The hydraulic wet clutch further includes a limiting washer (12) and a wear ring (13). The limiting washer (12) and the wear ring (13) are both installed inside the clutch housing (3). The limiting washer (12) is used to limit the rear end face of the driven plate (31). The wear ring (13) is located between the inner wall of the clutch housing (3) and the outer wall of the piston (4).
10. The hydraulic wet clutch with a buffer device according to claim 9, characterized in that, The hydraulic wet clutch further includes: a spline sleeve (8), a driven shaft (9) and a locking nut (11). The spline sleeve (8) is installed at the front end of the driven shaft (9) by the locking nut (11). The outer wall of the spline sleeve (8) is provided with a fifth tooth structure, and the inner wall of the rear end of the driven hub (7) is provided with a sixth tooth structure. The fifth tooth structure and the sixth tooth structure mesh with each other.