Motorcycle clutch

Abstract

The utility model belongs to the technical field of clutches, and particularly relates to a motorcycle clutch which comprises a center sleeve and a pressure plate, and a sliding and twisting assembly is arranged between the center sleeve and the pressure plate. The sliding twisting assembly comprises first twisting blocks and second twisting blocks, the three first twisting blocks are arranged on the center sleeve in an array mode along the circle center, the upper surfaces of the first twisting blocks are lower than the upper surface of the center sleeve, a mounting notch is formed in the center sleeve between the first twisting blocks, and the top of the mounting notch is higher than the upper surfaces of the first twisting blocks; the three second twisting blocks are arranged on the pressing disc along the circle center in an array mode, the second twisting blocks penetrate through the mounting notches to be attached to the first twisting blocks, and the attaching faces are spiral faces; a spline housing is connected among the three first twisting blocks, and a connecting opening corresponding to the spline housing is formed in the pressing disc.

Description

Technical Field

[0001] This utility model belongs to the field of clutch technology, and more specifically, relates to a motorcycle clutch. Background Technology

[0002] In a motorcycle transmission system, the clutch is a key component connecting the engine and the gearbox, and its performance directly affects the vehicle's handling, starting smoothness, and shifting smoothness. Traditional motorcycle clutches mostly use a dry or wet multi-plate clutch structure. By pulling the cable with an operating lever, the release bearing is pushed, causing the pressure plate to release the friction plates, thus disconnecting the power.

[0003] However, in actual use, existing clutches still have many problems. Some clutches have poor heat dissipation performance and are prone to thermal decay under long-term high-load operation, which affects the engagement effect and service life of the clutch. At the same time, existing clutches have complex structures, require high assembly precision, and have high maintenance and replacement costs, which is not conducive to later maintenance.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings to provide a motorcycle clutch with greater practical value. Utility Model Content

[0005] In view of the problems mentioned in the background art above, this utility model provides a motorcycle clutch.

[0006] The technical solution adopted by this utility model is as follows: A motorcycle clutch includes a center sleeve and a pressure plate, and a sliding torque assembly is provided between the center sleeve and the pressure plate; the sliding torque assembly includes a first torque block and a second torque block, three first torque blocks are arranged in a circular array on the center sleeve, and the upper surface of the first torque block is lower than the upper surface of the center sleeve, and an installation notch is formed on the center sleeve between the first torque blocks, and the top height of the installation notch is higher than the upper surface of the first torque block; three second torque blocks are arranged in a circular array on the pressure plate, and the second torque blocks pass through the installation notch and fit against the first torque blocks, the fitting surface being a spiral surface; a spline sleeve is connected between the three first torque blocks, and a connection port corresponding to the spline sleeve is opened on the pressure plate.

[0007] Furthermore, it also includes a lifting plate, and a mounting post is provided on the pressure plate between the two second torsion blocks. The mounting post has a threaded cavity, and the first torsion block has an oblong hole. The mounting post passes through the oblong hole and is connected to the lifting plate by bolts.

[0008] Furthermore, a spring is fitted onto the mounting column, with both ends of the spring abutting against the lifting plate and the pressure plate, respectively.

[0009] Furthermore, the outer peripheral array of the central sleeve has several mounting teeth for mounting friction plates.

[0010] Furthermore, a reinforcing rib is provided at the top of the central sleeve, and a protrusion for abutting against the reinforcing rib is provided on the outer periphery of the lifting plate.

[0011] The beneficial effects of this utility model are:

[0012] The sliding torque transmission mechanism between the pressure plate and the center sleeve is achieved by the first and second torsion blocks with spiral surfaces. The three first torsion blocks are connected by spline sleeves, which not only enhances the stability of the overall structure, but also achieves the function of synchronous rotation but allows a certain axial displacement through the connection port on the pressure plate of the spline sleeve. This effectively alleviates the stress concentration problem caused by thermal expansion or assembly errors. Since the sliding fit structure has a certain tolerance, the requirement for assembly coaxiality is relatively reduced, which improves the economy of manufacturing and maintenance. Attached Figure Description

[0013] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0014] Figure 1 This is a schematic diagram of the present invention;

[0015] Figure 2 This is an exploded view of the present invention;

[0016] The attached diagram is labeled as follows:

[0017] Center sleeve 1, first torsion block 11, mounting notch 12, spline sleeve 13, waist-shaped hole 14, mounting tooth 15, reinforcing rib 16, pressure plate 2, second torsion block 21, connection port 22, mounting post 23, threaded cavity 24, spring 25, lifting plate 3, protrusion 31. Detailed Implementation

[0018] like Figures 1-2 As shown, a motorcycle clutch includes a center sleeve 1 and a pressure plate 2, with a sliding torque assembly disposed between the center sleeve 1 and the pressure plate 2. The sliding torque assembly includes a first torque block 11 and a second torque block 21. Three first torque blocks 11 are arranged in a circular array on the center sleeve 1, and the upper surface of the first torque block 11 is lower than the upper surface of the center sleeve 1. An installation notch 12 is formed on the center sleeve 1 between the first torque blocks 11, and the top of the installation notch 12 is higher than the upper surface of the first torque block 11. Three second torque blocks 21 are arranged in a circular array on the pressure plate 2, and the second torque blocks 21 pass through the installation notch 12 and fit against the first torque blocks 11. The fitting surface is a spiral surface. A spline sleeve 13 is connected between the three first torque blocks 11, and a connection port 22 corresponding to the spline sleeve 13 is provided on the pressure plate 2.

[0019] Using the above technical solution, the structure realizes the sliding torque transmission mechanism between the pressure plate 2 and the center sleeve 1 through the first torsion block 11 and the second torsion block 21 with spiral surface contact. The three first torsion blocks 11 are connected by a spline sleeve 13, which not only enhances the stability of the overall structure, but also achieves the function of synchronous rotation but allows a certain axial displacement through the cooperation between the spline sleeve 13 and the connection port 22 on the pressure plate 2. This effectively alleviates the stress concentration problem caused by thermal expansion or assembly error. Since the sliding contact structure has a certain tolerance, the requirement for assembly coaxiality is relatively reduced, which improves the economy of manufacturing and maintenance.

[0020] As a preferred embodiment, the system also includes a lifting plate 3. A mounting post 23 is positioned on the pressure plate 2 between two second torsion blocks 21. The mounting post 23 has a threaded cavity 24. The first torsion block 11 has an oblong hole 14. The mounting post 23 passes through the oblong hole 14 and is bolted to the lifting plate 3. The mounting post 23 can slide within the oblong hole 14, avoiding rigid interference.

[0021] As a preferred embodiment, a spring 25 is fitted onto the mounting post 23, with both ends of the spring 25 abutting against the lifting plate 3 and the pressure plate 2, respectively. The spring 25 provides a stable restoring force, ensuring that the clutch quickly returns to the engaged state after release. Multiple springs 25 are distributed on multiple mounting posts 23, and this multi-point distribution helps to apply the restoring force evenly and prevents uneven wear caused by the misalignment of the pressure plate 2.

[0022] As a preferred embodiment, the outer periphery of the center sleeve 1 has a plurality of mounting teeth 15 for mounting friction plates. As a crucial component of the power input end, the mounting teeth 15 machined on the outer periphery of the center sleeve 1 are used to position and fix the friction plate assembly. These teeth engage with the inner edge of the friction plates, forming a connection structure that rotates synchronously but allows axial sliding.

[0023] As a preferred embodiment, the top of the central sleeve 1 is provided with a reinforcing rib plate 16, and the outer periphery of the lifting plate 3 is provided with a protrusion 31 for abutting against the reinforcing rib plate 16. The reinforcing rib plate 16 is a reinforcement structure designed to improve the structural strength of the central sleeve 1, especially under high torque impact, it can effectively prevent the central sleeve 1 from undergoing plastic deformation. The protrusion 31 on the lifting plate 3 abuts against it during the downward movement of the lifting plate 3, forming a dual function of limiting and guiding. When the lifting plate 3 is pressed down to the limit position, the protrusion 31 contacts the reinforcing rib plate 16, limiting the further downward movement of the lifting plate 3, thereby protecting the internal sliding torsion assembly from overload damage.

[0024] The present invention has been described in detail above. The specific embodiments are provided only to help understand the method and core idea of ​​the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A motorcycle clutch, characterized in that: It includes a center sleeve (1) and a pressure plate (2), and a sliding torsion assembly is provided between the center sleeve (1) and the pressure plate (2); The sliding twist assembly includes a first twist block (11) and a second twist block (21). Three first twist blocks (11) are arranged in a circular array on the central sleeve (1), and the upper surface of the first twist block (11) is lower than the upper surface of the central sleeve (1). An installation notch (12) is formed between the first twist blocks (11) on the central sleeve (1), and the top height of the installation notch (12) is higher than the upper surface of the first twist block (11). Three second twist blocks (21) are arranged in a circular array on the pressure plate (2). The second twist block (21) passes through the installation notch (12) and fits against the first twist block (11). The fitting surface is a spiral surface. A spline sleeve (13) is connected between the three first twist blocks (11), and a connection port (22) corresponding to the spline sleeve (13) is provided on the pressure plate (2).

2. A motorcycle clutch according to claim 1, characterized in that: It also includes a lifting plate (3), and a mounting post (23) is provided on the pressure plate (2) between two second torsion blocks (21). The mounting post (23) has a threaded cavity (24) inside, and the first torsion block (11) has a waist-shaped hole (14). The mounting post (23) passes through the waist-shaped hole (14) and is connected to the lifting plate (3) by bolts.

3. A motorcycle clutch according to claim 2, characterized in that: A spring (25) is fitted on the mounting column (23), and the two ends of the spring (25) abut against the lifting plate (3) and the pressure plate (2) respectively.

4. A motorcycle clutch according to claim 3, characterized in that: The outer periphery of the central sleeve (1) has several mounting teeth (15) for mounting friction plates.

5. The motorcycle clutch according to any one of claims 2-4, characterized in that: The top of the central sleeve (1) is provided with a reinforcing rib plate (16), and the outer periphery of the lifting plate (3) is provided with a protrusion (31) for abutting against the reinforcing rib plate (16).

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