Spline installation type clutch
By employing a spline mounting structure and locking design, the problem of inconvenient disassembly of existing clutches is solved, achieving efficient friction plate fixation and torque transmission, thereby improving the efficiency of clutch assembly and disassembly and its working performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-26
- Publication Date
- 2026-03-13
AI Technical Summary
The existing bolt-fixing method for clutches results in low assembly and disassembly efficiency, affecting the ease of maintenance.
The system adopts a spline mounting structure, which uses the meshing of spline teeth and spline grooves, combined with a locking structure and diaphragm spring design, to fix or disassemble the friction plate and the fly disc, thereby improving assembly and disassembly efficiency.
It significantly improves the efficiency and convenience of clutch assembly and disassembly, ensures stable torque transmission of the friction plates, and enhances overall working performance and installation accuracy.
Smart Images

Figure CN223991918U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clutch technology, specifically a spline-mounted clutch. Background Technology
[0002] The clutch is an indispensable key component in automobiles or other power machinery systems. Essentially, it is a mechanical device located between the engine and the transmission. Its main function is to connect or disconnect the power transmission between the engine and the transmission. Simply put, the clutch is like a "switch" that controls whether the engine power is transmitted to the drive wheels, thereby enabling operations such as starting, shifting gears, and stopping the vehicle.
[0003] In existing clutches, the friction plates are usually fixed to the shaft with bolts. However, this fixed installation method is inconvenient during the assembly and disassembly of clutch components, resulting in low assembly and disassembly efficiency and affecting the convenience of maintenance. Therefore, we propose a spline-mounted clutch. Utility Model Content
[0004] The purpose of this invention is to provide a spline-mounted clutch to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a spline-mounted clutch, comprising a clutch housing, a fly disc disposed at the bottom of the clutch housing, a locking structure disposed on the outer side of the clutch housing for fixing the clutch housing, a friction plate, a pressure block, and a diaphragm spring disposed between the inner walls of the clutch housing, the bottom of the friction plate abutting against the fly disc, a spline groove formed on the top of the friction plate, the pressure block disposed above the friction plate, the bottom of the pressure block abutting against the friction plate, the diaphragm spring disposed on the top of the pressure block, a bushing disposed on the top of the diaphragm spring and located at the top of the clutch housing, a connecting shaft rotatably connected to the outer side of the bushing, the outer side of the connecting shaft rotatably connected to the pressure block and the fly disc, and spline teeth disposed on the outer side of the connecting shaft, the spline teeth meshing with the inner side of the spline groove.
[0006] As a further preferred embodiment of this technical solution, four locking blocks are fixedly connected to the outer side of the pressure block, the inner sides of the four locking blocks are in contact with the diaphragm spring, the top of the four locking blocks is provided with a spring plate, and the top of the four spring plates is fixedly connected to the clutch housing.
[0007] As a further preferred embodiment of this technical solution, two positioning posts are fixedly connected to the bottom of the clutch housing, and two positioning holes are opened on the top of the fly disc, with the two positioning posts respectively contacting the inner side of the two positioning holes.
[0008] As a further preferred embodiment of this technical solution, the locking structure includes two lock boxes, both of which are fixedly connected to the outside of the clutch housing. Each of the two lock boxes has a sliding groove on its top, and the two sliding grooves pass through the two lock boxes respectively. A paddle and a plug are slidably connected between the inner walls of the two sliding grooves. The top of the frisbee is fixedly connected to two fixing blocks, and each of the two fixing blocks has a slot on one side. The two plugs respectively contact the inside of the two slots.
[0009] As a further preferred embodiment of this technical solution, a sliding plate is slidably connected between the inner walls of the two lock boxes, the top of the two sliding plates is fixedly connected to two paddles respectively, and the bottom of the two sliding plates is fixedly connected to two insert blocks respectively.
[0010] As a further preferred embodiment of this technical solution, a return spring is fixedly connected between the two slide plates and the inner sides of the two lock boxes.
[0011] This utility model provides a spline-mounted clutch, which has the following advantages:
[0012] (1) The present invention, through the locking structure, facilitates the user to fix or disassemble the clutch housing and the fly disc, which significantly improves the efficiency and convenience of clutch assembly and disassembly. In addition, the spline teeth on the outside of the connecting shaft mesh with the spline groove on the friction plate, which not only effectively transmits torque, but also facilitates the disassembly and installation of the friction plate. With the cooperation of the diaphragm spring and the pressure block, the clutch can be engaged and disassembled between the friction plate and the fly disc, thereby improving the overall working performance of the clutch.
[0013] (2) This utility model facilitates the precise fixing of the clutch housing and the fly disc by inserting the two positioning pins at the bottom of the clutch housing into the two positioning holes on the fly disc, thereby improving the accuracy of clutch installation. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;
[0016] Figure 3 This is a schematic diagram of the flying disc structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the clutch housing structure of this utility model;
[0018] Figure 5 This is a schematic diagram of the friction plate structure of this utility model;
[0019] Figure 6This is a schematic diagram of the pressing block structure of this utility model;
[0020] In the diagram: 1. Clutch housing; 2. Flying disc; 3. Fixing block; 4. Slide groove; 5. Paddle; 6. Lock box; 7. Bushing; 8. Connecting shaft; 9. Diaphragm spring; 10. Friction plate; 11. Pressure block; 12. Locking block; 13. Spring; 14. Slide plate; 15. Return spring; 16. Insert block; 17. Positioning hole; 18. Slot; 19. Positioning pin; 20. Spline groove; 21. Spline teeth. Detailed Implementation
[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0022] This utility model provides a technical solution: such as Figures 1-6 As shown, in this embodiment, a spline-mounted clutch includes a clutch housing 1. A fly disc 2 is disposed at the bottom of the clutch housing 1. A locking structure is disposed on the outer side of the clutch housing 1 to fix the clutch housing 1. A friction plate 10, a pressure block 11, and a diaphragm spring 9 are disposed between the inner walls of the clutch housing 1. The bottom of the friction plate 10 abuts against the fly disc 2, and a spline groove 20 is formed on the top of the friction plate 10. The pressure block 11 is disposed above the friction plate 10, and the bottom of the pressure block 11 abuts against the friction plate 10. The diaphragm spring 9 is disposed on the top of the pressure block 11, and a bushing is disposed on the top of the diaphragm spring 9 and at the top of the clutch housing 1. 7. A connecting shaft 8 is rotatably connected to the outer side of the bushing 7. The outer side of the connecting shaft 8 is rotatably connected to the pressure block 11 and the fly disc 2. The outer side of the connecting shaft 8 is provided with spline teeth 21, which mesh with the inner side of the spline groove 20. Four locking blocks 12 are fixedly connected to the outer side of the pressure block 11. The inner side of each of the four locking blocks 12 abuts against the diaphragm spring 9. The top of each of the four locking blocks 12 is provided with a spring piece 13, and the top of each of the four spring pieces 13 is fixedly connected to the clutch housing 1. Two positioning pins 19 are fixedly connected to the bottom of the clutch housing 1. Two positioning holes 17 are opened on the top of the fly disc 2, and the two positioning pins 19 respectively contact the inner side of the two positioning holes 17.
[0023] When installing and using the clutch, first connect the fly disc 2 to the output end of the external engine. Then, place the friction plate 10 (made of thermally conductive materials such as carbon fiber and resin to ensure good friction performance and high-temperature resistance) inside the clutch housing 1. Next, insert the two positioning pins 19 into the two positioning holes 17 respectively to position the clutch housing 1 on the fly disc 2. At the same time, the locking structure fixes the clutch housing 1 to the fly disc 2. Then, connect the bushing 7 to the external pedal, and the connecting shaft 8 to the input shaft of the external gearbox to complete the clutch installation. When the clutch is in use, when the pedal is depressed, the bushing 7 presses down on the diaphragm spring 9 (made of alloy steel to ensure the diaphragm spring 9's durability). The friction plate 10, without pressure, moves upward through the four locking blocks 12, causing the pressure block 11 to move upward and press the four spring plates 13 (specifically made of alloy steel). When the pedal is released, the bushing 7 and the diaphragm spring 9 return to their original positions. The four spring plates 13 then push the pressure block 11 downward through the spring force, pressing the friction plate 10 into close contact with the fly disc 2. Then, through the meshing of the spline groove 20 and the spline teeth 21, the friction plate 10 not only transmits torque to the connecting shaft 8, but also further transmits torque to the interior of the external gearbox through the rotation of the connecting shaft 8.
[0024] When the clutch needs to be disassembled, the locking structure releases the clutch housing 1, making it easier to maintain and replace the internal parts of the clutch housing 1, thereby improving the clutch's performance.
[0025] like Figures 1-6 As shown, the locking structure includes two lock boxes 6, both of which are fixedly connected to the outside of the clutch housing 1. Each of the two lock boxes 6 has a sliding groove 4 on its top, which passes through the two lock boxes 6 respectively. A paddle 5 and a plug 16 are slidably connected between the inner walls of the two sliding grooves 4. Two fixing blocks 3 are fixedly connected to the top of the fly disc 2. Each of the two fixing blocks 3 has a slot 18 on one side, and the two plugs 16 are in contact with the inside of the two slots 18 respectively. A sliding plate 14 is slidably connected between the inner walls of the two lock boxes 6. The top of the two sliding plates 14 is fixedly connected to the two paddles 5 respectively, and the bottom of the two sliding plates 14 is fixedly connected to the two plugs 16 respectively. A return spring 15 is fixedly connected between the two sliding plates 14 and the inner sides of the two lock boxes 6.
[0026] By pushing the two paddles 5 to move between the inner walls of the two slides 4, the two slide plates 14 are moved between the inner walls of the two lock boxes 6, and the two return springs 15 (specifically made of high carbon steel) are compressed. At the same time, the two inserts 16 are moved away from the two fixed blocks 3, so that the two inserts 16 are moved out of the interior of the slot 18, thereby releasing the fixation of the clutch housing 1.
[0027] The elastic action of the two return springs 15 pushes the two slide plates 14 to move between the inner walls of the two lock boxes 6, and drives the two insert blocks 16 to be inserted into the two slots 18 respectively, thereby fixing the clutch housing 1 and improving the convenience of clutch disassembly and assembly.
[0028] This utility model provides a spline-mounted clutch, the specific working principle of which is as follows: When installing and using the clutch, firstly, the fly disc 2 is connected to the output end of the external engine, then the friction plate 10 is placed inside the clutch housing 1, and then two positioning pins 19 are inserted into two positioning holes 17 respectively, thereby positioning the clutch housing 1 on the fly disc 2. At the same time, through the elastic action of two return springs 15, two sliding plates 14 are pushed to move between the inner walls of two lock boxes 6, and two insert blocks 16 are inserted into the interiors of two slots 18 respectively, thereby fixing the clutch housing 1 on the fly disc 2. Then, the bushing 7 is connected to the external pedal, and the connecting shaft 8 is connected to the input shaft of the external gearbox, thus completing the installation of the clutch; when When the clutch is in use, when the pedal is depressed, the bushing 7 presses down on the diaphragm spring 9, causing the outer ring of the diaphragm spring 9 to lift. Then, the four locking blocks 12 drive the pressure block 11 to move upward and press the four spring plates 13. When there is no pressure, the friction plate 10 moves outside the spline teeth 21 through the spline groove 20 and does not transmit torque to the connecting shaft 8. When the pedal is released, the bushing 7 and the diaphragm spring 9 return to their original positions. The spring force of the four spring plates 13 pushes the pressure block 11 downward and presses the friction plate 10 to fit tightly against the fly disc 2. Then, through the meshing of the spline groove 20 and the spline teeth 21, the friction plate 10 not only transmits torque to the connecting shaft 8, but also further transmits torque to the internal parts of the external gearbox through the rotation of the connecting shaft 8.
[0029] When the clutch needs to be disassembled, by pushing the two paddles 5 to move between the inner walls of the two slides 4, the two slide plates 14 are moved between the inner walls of the two lock boxes 6, and the two return springs 15 are pressed. At the same time, the two inserts 16 are moved away from the two fixed blocks 3, so that the two inserts 16 are moved out of the slot 18, thereby releasing the clutch housing 1 from the fixation, making it convenient to maintain and replace the inside of the clutch housing 1, thus completing the use of the spline-mounted clutch.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A spline-mounted clutch comprising a clutch housing (1), characterized in that: A fly disc (2) is provided at the bottom of the clutch housing (1). A locking structure is provided on the outer side of the clutch housing (1) for fixing the clutch housing (1). A friction plate (10), a pressure block (11), and a diaphragm spring (9) are provided between the inner walls of the clutch housing (1). The bottom of the friction plate (10) abuts against the fly disc (2). A spline groove (20) is provided on the top of the friction plate (10). The pressure block (11) is located above the friction plate (10). The bottom of (11) abuts against the friction plate (10). The diaphragm spring (9) is disposed on the top of the pressure block (11). A bushing (7) is disposed on the top of the diaphragm spring (9) and on the top of the clutch housing (1). A connecting shaft (8) is rotatably connected to the outside of the bushing (7). The outside of the connecting shaft (8) is rotatably connected to the pressure block (11) and the fly disc (2). A spline tooth (21) is disposed on the outside of the connecting shaft (8). The spline tooth (21) meshes with the inside of the spline groove (20).
2. A spline mounted clutch according to claim 1, characterized in that: Four locking blocks (12) are fixedly connected to the outer side of the pressure block (11). The inner side of each of the four locking blocks (12) abuts against the diaphragm spring (9). Each of the four locking blocks (12) has a spring piece (13) on its top. The top of each of the four spring pieces (13) is fixedly connected to the clutch housing (1).
3. A spline mounted clutch as claimed in claim 1, wherein: Two positioning posts (19) are fixedly connected to the bottom of the clutch housing (1), and two positioning holes (17) are opened on the top of the fly disc (2). The two positioning posts (19) respectively contact the inner side of the two positioning holes (17).
4. A spline mounted clutch as claimed in claim 1, wherein: The locking structure includes two lock boxes (6), both of which are fixedly connected to the outside of the clutch housing (1). The top of each of the two lock boxes (6) is provided with a sliding groove (4), which passes through the two lock boxes (6) respectively. A paddle (5) and a plug (16) are slidably connected between the inner walls of the two sliding grooves (4). The top of the frisbee (2) is fixedly connected with two fixing blocks (3), and a slot (18) is provided on one side of each of the two fixing blocks (3). The two plugs (16) are in contact with the inside of the two slots (18) respectively.
5. A spline mounted clutch according to claim 4, wherein: Slide plates (14) are slidably connected between the inner walls of the two lock boxes (6). The tops of the two slide plates (14) are fixedly connected to two paddles (5) respectively, and the bottoms of the two slide plates (14) are fixedly connected to two inserts (16) respectively.
6. A spline mounted clutch according to claim 5 wherein: A return spring (15) is fixedly connected between the inner sides of the two slide plates (14) and the two lock boxes (6).