Dry clutch of motorcycle

Abstract

The utility model belongs to the technical field of clutches, and particularly relates to a dry clutch of a motorcycle, which comprises a mounting disc arranged on a side cover and provided with an opening at one end, a driving disc is rotatably connected in the mounting disc, a driven disc is arranged in the driving disc, a driving friction plate and a driven friction plate are sleeved on the driven disc, and the driving friction plate and the driven friction plate are arranged on the mounting disc. A first mounting clamping groove is formed in the driving disc, a second mounting clamping groove is formed in the driven disc, a first clamping block clamped in the first mounting clamping groove in a sliding mode is arranged on the driving friction plate, a second clamping block clamped in the second mounting clamping groove in a sliding mode is arranged on the driven friction plate, and the driving disc, the driving friction plate and the first clamping block are made of steel. The driven disc is provided with a pressing disc and a spring, the pressing disc tightly presses the driving friction plate and the driven friction plate under the action of the elastic force of the spring, the pressing disc is connected with a separating rod, and the opening of the mounting disc is covered with a protective cover. According to the utility model, clear and melodious sound can be generated.

Description

Technical field:

[0001] The utility model belongs to the technical field of clutches, in particular to a dry clutch for a motorcycle. Background technology:

[0002] The function of a motorcycle clutch is to ensure smooth starting and running. Installed between the engine and transmission, the clutch is the assembly directly connected to the engine in the vehicle's transmission system. The clutch's primary components are friction plates, divided into active and passive friction plates. The active plates are connected to the engine crankshaft via gears, while the passive plates are connected to the clutch's output shaft, which is also the transmission's input shaft.

[0003] Motorcycle clutches are categorized as either wet or dry. Wet clutches utilize paper-based friction plates immersed in transmission fluid, dissipating heat through the fluid. This results in quiet operation and shifting, but is susceptible to slippage. Dry clutches, on the other hand, utilize air cooling, rather than immersing the clutch plates in transmission fluid. The plates are directly attached, making them less susceptible to slippage and providing a fast shift response. However, this can result in a louder shifting sound. Existing dry clutches produce a hammering noise, which is annoying to most people. Summary of the invention:

[0004] The utility model aims to provide a dry clutch for a motorcycle, which can produce a clear and pleasant sound.

[0005] The utility model is achieved in this way:

[0006] A dry clutch for a motorcycle comprises a mounting plate which is arranged on a side cover and has an opening at one end, a driving plate being rotatably connected in the mounting plate, a driven plate being provided in the driving plate, a driving friction plate and a driven friction plate being mounted on the driven plate, a first mounting slot being provided on the driving plate, a second mounting slot being provided on the driven plate, a first clamping block which is slidably engaged in the first mounting slot being provided on the driving friction plate, and a second clamping block which is slidably engaged in the second mounting slot being provided on the driven friction plate, the driving plate, the driving friction plate and the first clamping block being made of steel, a pressure plate and a spring being provided on the driven plate, the pressure plate pressing the driving friction plate and the driven friction plate under the action of the spring force, a release lever being connected to the pressure plate, and a protective cover being provided on the opening of the mounting plate.

[0007] In the above-mentioned dry clutch of a motorcycle, the driven plate includes a sleeve portion and a limiting portion, the active friction plate and the driven friction plate are sleeved on the sleeve portion, the second mounting slot is provided on the sleeve portion, and the active friction plate and the driven friction plate are alternately provided between the limiting portion and the pressure plate.

[0008] In the above-mentioned dry clutch for a motorcycle, the active friction plate and the first clamping block are an integrated structure, and the driven friction plate and the second clamping block are an integrated structure.

[0009] In the above-mentioned dry clutch of a motorcycle, the screw passes through the protective cover and is screwed to the mounting plate.

[0010] In the above-mentioned dry clutch for a motorcycle, the material of the mounting plate, the driven plate, the pressure plate and the protective cover is 6061 aluminum alloy.

[0011] In the above-mentioned dry clutch of a motorcycle, the end of the mounting plate away from the opening is rotatably connected to a gear mounting seat, one side of the gear mounting seat is connected to the active plate and the other side is connected to the gear, a hollow rotating shaft is rotatably provided in the gear mounting seat, the driven plate is connected to the rotating shaft, the end of the release rod away from the pressure plate is slidably provided in the rotating shaft, a push rod for pushing the release rod is provided in the rotating shaft, and the end of the push rod away from the release rod extends out of the rotating shaft.

[0012] In the above-mentioned dry clutch of a motorcycle, the driving plate is fixedly connected to the gear mounting seat by screws, the gear mounting seat is fixedly connected to the gear by screws, the driven plate is circumferentially fixed to the rotating shaft by splines, and the driven plate is axially fixed by a limiting washer nut.

[0013] In the above-mentioned dry clutch for a motorcycle, a bearing and an oil seal sleeved on the rotating shaft are provided between the gear mounting seat and the rotating shaft.

[0014] In the above-mentioned dry clutch of a motorcycle, the pressure plate is concave toward one side of the driven plate to form a mounting groove, the driven plate is provided with a mounting post extending into the mounting groove, the spring is sleeved on the mounting post, a fixing screw is screwed onto the mounting post, the rod of the fixing screw is sleeved with a spring retainer, the spring retainer is limited between the head of the fixing screw and the mounting post, one end of the spring is limited by abutting against the spring retainer, and the other end is limited by abutting against the end face of the mounting groove.

[0015] In the above-mentioned dry clutch of a motorcycle, a cap nut and a flange nut are screwed on the release rod, a spring washer is mounted on the release rod, the spring washer is located between the cap nut and the flange nut, the pressure plate is mounted on the nut body of the flange nut, and is limited between the spring washer and the flange of the flange nut.

[0016] In the above-mentioned dry clutch for a motorcycle, the steel is carbon steel or alloy steel, and the alloy steel is spring steel, tool steel or stainless steel.

[0017] In the above-mentioned dry clutch for a motorcycle, the driven friction plate is made of copper, and wear-resistant layers are provided on both sides of the driven friction plate.

[0018] In the above-mentioned dry clutch for motorcycle, the wear-resistant layer is made of wear-resistant metal by powder metallurgy.

[0019] In the above-mentioned dry clutch for motorcycles, the side cover is provided with a through hole for placing the mounting plate, the outer periphery of the mounting plate is provided with a mounting flange, and the screw passes through the mounting flange and is screwed to the side cover.

[0020] In the above-mentioned dry clutch of a motorcycle, the open end of the mounting plate is connected to the side cover through an annular connecting portion, and the mounting plate, the side cover and the annular connecting portion are an integrated structure, and the screw passes through the protective cover and is screwed to the annular connecting portion.

[0021] In the above-mentioned dry clutch for a motorcycle, a reinforcing rib is provided between the outer side wall of the mounting plate and the side cover.

[0022] In the above-mentioned dry clutch for a motorcycle, the reinforcing ribs, the mounting plate and the side cover are an integrated structure.

[0023] The outstanding advantages of the utility model compared with the prior art are:

[0024] 1. The active disc, active friction plate and clamping block 1 of the utility model are made of steel. When the clamping block 1 hits the active disc, it will make a crisp and pleasant sound, which is not noise to most people and is loved by people. The outer cover of the mounting disc of the utility model is equipped with a protective cover to effectively protect the components inside the mounting disc and prevent them from being damaged by bumps;

[0025] 2. The release rod of the utility model is screwed with a cap nut and a flange nut, and a spring washer is mounted on the release rod. The spring washer is located between the cap nut and the flange nut. The pressure plate is mounted on the nut body of the flange nut and is limited between the spring washer and the flange of the flange nut. The structure is simple, easy to install, and the structure is firm and reliable.

[0026] 3. The opening end of the mounting plate of the utility model is connected to the side cover through an annular connecting portion, and the mounting plate, side cover and annular connecting portion are an integrated structure, which effectively saves materials, reduces the number of parts, and reduces assembly steps, making installation easier. Description of the drawings:

[0027] Figure 1 It is a three-dimensional diagram of the first embodiment of the present utility model;

[0028] Figure 2 This is a three-dimensional diagram of a sideless cover according to embodiment 1 of the present invention;

[0029] Figure 3 This is an exploded view of the first embodiment of the present invention without a rotating shaft;

[0030] Figure 4 It is a perspective view of the second embodiment of the present utility model;

[0031] Figure 5 It is a three-dimensional structure of the side cover and the mounting plate of the second embodiment of the present invention. Figure 1 ;

[0032] Figure 6 It is a three-dimensional structure of the side cover and the mounting plate of the second embodiment of the present invention. Figure 2 .

[0033] Figure numerals: 1. side cover; 2. mounting plate; 3. driving plate; 4. driven plate; 5. driving friction plate; 6. driven friction plate; 7. mounting slot 1; 8. mounting slot 2; 9. clamping block 1; 10. clamping block 2; 11. pressure plate; 12. spring; 13. release lever; 14. protective cover; 15. gear mounting seat; 16. gear; 17. rotating shaft; 18. mounting slot; 19. mounting column; 20. fixing screw; 21. spring retainer; 22. cap nut; 23. flange nut; 24. spring washer; 25. wear-resistant layer; 26. mounting flange; 27. annular connecting portion; 28. bearing; 29. ​​oil seal; 30. reinforcing rib. Specific implementation method:

[0034] The present invention is further described below with reference to specific embodiments. Figure 1 —6:

[0035] Example 1: See Figure 1-3 :

[0036] A dry clutch for a motorcycle comprises a mounting plate 2 which is arranged on a side cover 1 and has an opening at one end, a driving plate 3 being rotatably connected in the mounting plate 2, a driven plate 4 being provided in the driving plate 3, a driving friction plate 5 and a driven friction plate 6 being mounted on the driven plate 4, a mounting slot 1 7 being provided in the driving plate 3, a mounting slot 2 8 being provided in the driven plate 4, a clamping block 1 9 being provided on the driving friction plate 5 and being slidably engaged in the mounting slot 1 7, and a clamping block 2 10 being provided on the driven friction plate 6 and being slidably engaged in the mounting slot 2 8, the driving plate 3, the driving friction plate 5 and the clamping block 1 9 being made of steel, a pressure plate 11 and a spring 12 being provided on the driven plate 4, the pressure plate 11 pressing the driving friction plate 5 and the driven friction plate 6 under the elastic force of the spring 12, a release lever 13 being connected to the pressure plate 11, and a protective cover 14 being provided on the opening of the mounting plate 2.

[0037] Furthermore, the driven disc 4 includes a sleeve portion and a limiting portion, the active friction plate 5 and the driven friction plate 6 are sleeved on the sleeve portion, the mounting slot 2 8 is provided on the sleeve portion, and the active friction plate 5 and the driven friction plate are alternately provided between the limiting portion and the pressure plate 11.

[0038] The working principle of this utility model is as follows: Figure 1-3As shown, when the driving disc 3 rotates, the driving friction plate 5 is driven to rotate via the mounting slot 1 7 and the block 1 9. Under the elastic force of the spring 12, the pressure plate 11 presses the driving friction plate 5 and the driven friction plate 6 together. The driving friction plate 5 contacts the driven friction plate 6 and, through friction, drives the driven friction plate 6 to rotate. This, in turn, drives the driven disc 3 to rotate via the mounting slot 2 8 and the block 2 10. When the release lever 13 drives the pressure plate 11 away from the driven disc 4, compressing the spring 12, the driving friction plate 5 separates from the driven friction plate 6, rotating the driving friction plate 5 while the driven friction plate 6 does not.

[0039] like Figure 1-3 As shown, the active disc 3, active friction plate 5, and clamping block 1 9 of the present invention are made of steel. When the clamping block 1 9 strikes the active disc 3, it produces a crisp, pleasant sound, which is not considered noise to most people and is therefore appreciated. The mounting disc 2 of the present invention is provided with a protective cover 14 on its outer cover, effectively protecting the components within the mounting disc 2 from damage.

[0040] In order to ensure a firm and reliable connection and reduce assembly steps, the active friction plate 5 and the clamping block 1 9 are an integrated structure, and the driven friction plate 6 and the clamping block 2 10 are an integrated structure.

[0041] The protective cover 14 is connected to the mounting plate 2 in the following manner: screws pass through the protective cover 14 and are screwed to the mounting plate 2 .

[0042] Furthermore, the material of the mounting plate 2, the driven plate 4, the pressure plate 11 and the protective cover 14 is 6061 aluminum alloy.

[0043] Furthermore, the end of the mounting plate 2 away from the opening is rotatably connected to a gear mounting seat 15, one side of the gear mounting seat 15 is connected to the active plate 3 and the other side is connected to the gear 16, a hollow rotating shaft 17 is rotatably provided in the gear mounting seat 15, the driven plate 4 is connected to the rotating shaft 17, the end of the separation rod 13 away from the pressure plate 11 is slidably provided in the rotating shaft 17, a push rod for pushing the separation rod 13 is provided in the rotating shaft 17, and the end of the push rod away from the separation rod 13 extends out of the rotating shaft 17.

[0044] The engine's output shaft is equipped with a main tooth that meshes with gear 16, driving gear 16 to rotate, thereby rotating gear mounting base 15 and mounting plate 2. The rotation of driven plate 4 drives shaft 17, which serves as the output shaft of the dry clutch and the input shaft of the transmission. The end of the push rod extending from shaft 17 pushes the push rod inward, which in turn moves release lever 13, thereby moving pressure plate 11 away from driven plate 4. When the push rod is released, pressure plate 11 returns to its original position under the force of spring 12, which in turn returns release lever 13 and the push rod to their original position.

[0045] Furthermore, the driving disk 3 is fixedly connected to the gear mounting seat 15 by screws, the gear mounting seat 15 is fixedly connected to the gear 16 by screws, the driven disk 4 is circumferentially fixed to the rotating shaft 17 by splines, and the driven disk 4 is axially fixed by a limiting washer nut.

[0046] In order to facilitate the rotation of the gear mounting seat 15 relative to the rotating shaft 17 , a bearing 28 and an oil seal 29 sleeved on the rotating shaft 17 are provided between the gear mounting seat 15 and the rotating shaft 17 .

[0047] The installation structure of spring 12: Figure 1-3 As shown, the pressure plate 11 is recessed toward one side of the driven plate 4 to form a mounting groove 18. The driven plate 4 is provided with a mounting post 19 that extends into the mounting groove 18. The spring 12 is mounted on the mounting post 19. A fixing screw 20 is threaded onto the mounting post 19. The stem of the fixing screw 20 is mounted with a spring retainer 21. The spring retainer 21 is positioned between the head of the fixing screw 20 and the mounting post 19. One end of the spring 12 is restrained by contact with the spring retainer 21, while the other end is restrained by contact with the end surface of the mounting groove 18. The structure is simple, easy to install, and the mounting structure is firm and reliable.

[0048] The installation structure of the separation rod 13: Figure 1-3 As shown, the release rod 13 is threaded with a cap nut 22 and a flange nut 23. A spring washer 24 is mounted on the release rod 13 and positioned between the cap nut 22 and the flange nut 23. The pressure plate 11 is mounted on the nut body of the flange nut 23 and is positioned between the spring washer 24 and the flange of the flange nut 23. The structure is simple, easy to install, and secure.

[0049] Preferably, the steel is carbon steel or alloy steel, and the alloy steel is spring steel, tool steel, or stainless steel. In this embodiment, the active disc 3 is made of 40Cr steel, and the active friction plate 5 and the block 1 9 are made of 65Mn spring steel, which provide a crisp and pleasant sound.

[0050] Preferably, the driven friction plate 6 is made of copper, and wear-resistant layers 25 are provided on both sides of the driven friction plate 6 .

[0051] Furthermore, the wear-resistant layer 25 is made of wear-resistant metal by powder metallurgy.

[0052] Mounting structure of mounting plate 2: The side cover 1 is provided with a through hole for receiving mounting plate 2. The mounting plate 2 is provided with a mounting flange 26 on its outer periphery, through which screws pass to connect to the side cover 1. The mounting plate 2 and side cover 1 are separated structures, which facilitates the processing of the mounting plate 2 and side cover 1.

[0053] Example 2: See Figure 4-6 :

[0054] This embodiment has a substantially identical structure to the first embodiment, with the main difference being that the open end of the mounting plate 2 is connected to the side cover 1 via an annular connection 27. Furthermore, the mounting plate 2, side cover 1, and annular connection 27 are integrally formed, with screws passing through the protective cover 14 and screwed into the annular connection 27. This effectively saves material, reduces the number of parts, and simplifies assembly steps, facilitating installation.

[0055] In order to enhance the strength of the mounting plate 2 , a reinforcing rib 30 is provided between the outer side wall of the mounting plate 2 and the side cover 1 .

[0056] In order to ensure a firm and reliable connection and reduce assembly steps, the reinforcing rib 30 is an integrated structure with the mounting plate 2 and the side cover 1.

[0057] The above embodiment is only one of the preferred embodiments of the present invention and is not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made based on the shape, structure, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dry clutch for a motorcycle, characterized by: The invention comprises a mounting plate (2) which is arranged on a side cover (1) and has an opening at one end, wherein a driving plate (3) is rotatably connected in the mounting plate (2), a driven plate (4) is arranged in the driving plate (3), a driving friction plate (5) and a driven friction plate (6) are mounted on the driven plate (4), a mounting slot (7) is provided on the driving plate (3), a mounting slot (8) is provided on the driven plate (4), a card block (9) is provided on the driving friction plate (5) and a card block (9) is slidably engaged in the mounting slot (7), and a card block (9) is provided on the driven friction plate (6). The wiper (6) is provided with a second card block (10) which is slidably engaged in the second mounting card slot (8). The active disc (3), the active friction disc (5) and the first card block (9) are made of steel. The driven disc (4) is provided with a pressure plate (11) and a spring (12). The pressure plate (11) presses the active friction disc (5) and the driven friction disc (6) under the elastic force of the spring (12). The pressure plate (11) is connected to a separation rod (13). The opening of the mounting disc (2) is covered with a protective cover (14).

2. A dry clutch for a motorcycle according to claim 1, characterized in that: The end of the mounting plate (2) away from the opening is rotatably connected to a gear mounting seat (15), one side of the gear mounting seat (15) is connected to the active plate (3), and the other side is connected to the gear (16), a hollow rotating shaft (17) is rotatably provided in the gear mounting seat (15), the driven plate (4) is connected to the rotating shaft (17), the end of the separation rod (13) away from the pressure plate (11) is slidably provided in the rotating shaft (17), a push rod for pushing the separation rod (13) is provided in the rotating shaft (17), and the end of the push rod away from the separation rod (13) extends out of the rotating shaft (17).

3. The dry clutch for a motorcycle according to claim 1, characterized in that: The pressure plate (11) is concave toward one side of the driven plate (4) to form a mounting groove (18); the driven plate (4) is provided with a mounting post (19) extending into the mounting groove (18); the spring (12) is sleeved on the mounting post (19); a fixing screw (20) is screwed onto the mounting post (19); a spring retainer (21) is sleeved on the rod of the fixing screw (20); the spring retainer (21) is limited between the head of the fixing screw (20) and the mounting post (19); one end of the spring (12) is in contact with the spring retainer (21) for limiting position, and the other end is in contact with the end face of the mounting groove (18) for limiting position.

4. The dry clutch for a motorcycle according to claim 1, characterized in that: A cap nut (22) and a flange nut (23) are screwed onto the separation rod (13), a spring washer (24) is sleeved on the separation rod (13), and the spring washer (24) is located between the cap nut (22) and the flange nut (23). The pressure plate (11) is sleeved on the nut body of the flange nut (23) and is limited between the spring washer (24) and the flange of the flange nut (23).

5. The dry clutch for a motorcycle according to claim 1, characterized in that: The material of the active disc (3) is 40Cr steel, and the material of the active friction plate (5) and the clamping block (9) is 65Mn spring steel.

6. The dry clutch for a motorcycle according to claim 1, characterized in that: The material of the driven friction plate (6) is copper, and wear-resistant layers (25) are respectively provided on both sides of the driven friction plate (6).

7. The dry clutch for a motorcycle according to claim 1, characterized in that: The side cover (1) is provided with a through hole for placing the mounting plate (2); the outer periphery of the mounting plate (2) is provided with a mounting flange (26); screws pass through the mounting flange (26) and are screwed to the side cover (1).

8. The dry clutch for a motorcycle according to claim 1, characterized in that: The open end of the mounting plate (2) is connected to the side cover (1) via an annular connecting portion (27), and the mounting plate (2), the side cover (1) and the annular connecting portion (27) are an integrated structure, and a screw passes through the protective cover (14) and is screwed to the annular connecting portion (27).

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