A motorcycle clutch

Abstract

The utility model belongs to clutch technical field, especially a motorcycle clutch, the outer ring of centrifugal base is uniformly distributed with a plurality of centrifugal block slots, is provided with centrifugal block group in centrifugal block slot, is provided with end face pressing plate through elastic connecting structure in one end surface of centrifugal base, end face pressing plate is set on transmission core, is provided with transmission pressing plate in the other end of transmission core, is successively set with a plurality of outer tooth friction pieces, inner tooth friction piece from end face pressing plate on the transmission core of end face pressing plate and transmission pressing plate, outer tooth friction piece and inner tooth friction piece alternate arrangement, transmission pressing plate, transmission core and centrifugal base are connected through fastener, outer tooth friction piece is engaged with bowl public inner wall, the inner ring of inner tooth friction piece is engaged with transmission core, the utility model discloses the centrifugal force of centrifugal block group generates drive end face pressing plate and then fast pressure tight friction piece group, and the transmission process is more delicate, uniform, and the power output is more smooth.

Description

Technical Field

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

[0002] Currently, the rear transmission assembly of a traditional scooter consists of a drive disc (i.e., driven disc), a return spring (commonly known as a large spring), a clutch sling, and a clutch disc. When the motorcycle's power is output to the drive shaft, the drive shaft drives the front clutch disc to rotate. The clutch balls roll from the center to the edge in the clutch disc's groove due to centrifugal force. After the clutch disc closes, it drives the belt to separate the rear drive disc, causing the clutch sling to be thrown apart by centrifugal force and engage with the clutch disc. The friction pads on the clutch sling drive the clutch disc to rotate (similar to the engagement of brake pads and brake discs). The toothed structure at the center of the clutch disc drives the rear wheel axle to rotate, thus realizing the output of engine power to the drive wheels.

[0003] The above structure has the following defects:

[0004] 1. The friction plates on the sling block are engaged with the bowl in a frictional manner. When the vehicle starts, the sling block and the bowl are not tightly engaged in the initial stage, resulting in low friction and uneven friction. This leads to slippage during the friction process, causing the vehicle's starting speed to increase and making it prone to shaking when starting.

[0005] 2. The loose connection between the sway block structure and the bowl-shaped bracket causes shaking during start-up and stiffness during operation. Most drivers are accustomed to using a slightly larger throttle when starting, which causes the belt to lash the transmission box, creating a potential safety hazard for the components inside the transmission box. Furthermore, the friction process can cause slippage at any stage of vehicle speed, resulting in an uneven ride and affecting driving safety. Summary of the Invention

[0006] The purpose of this invention is to provide a motorcycle clutch that offers strong engagement, minimal kinetic energy loss, and smoother power output.

[0007] This utility model is implemented as follows:

[0008] A motorcycle clutch includes a bowl-shaped clutch and an annular centrifugal base. The outer circumference of the centrifugal base has a plurality of centrifugal block grooves evenly distributed. Centrifugal block assemblies are mounted within these grooves via mounting shafts. An end face pressure plate with an internal gear ring is elastically connected to one end face of the centrifugal base. The end face pressure plate is sleeved on a transmission core with an external gear ring. A transmission pressure plate is located at the other end of the transmission core. Multiple external gear friction plates and multiple internal gear friction plates are sequentially mounted on the end face pressure plate and the transmission core, starting from the end face pressure plate. The centrifugal bearings consist of an outer tooth friction plate and an inner tooth friction plate arranged alternately. The transmission pressure plate, transmission core, and centrifugal base are connected by fasteners. The outer periphery of the outer tooth friction plate is provided with several first convex teeth, which engage with the meshing grooves on the inner wall of the bowl. The inner ring of the inner tooth friction plate is provided with second convex teeth that engage with the grooves on the transmission core. The rotation of the centrifugal base causes the centrifugal block assembly to be subjected to centrifugal force and press against the end face pressure plate, so that the inner tooth friction plate and the outer tooth friction plate are tightly combined. The outer tooth friction plate drives the bowl to rotate synchronously.

[0009] In the aforementioned motorcycle clutch, the mounting shaft is a retaining ring, an annular groove is provided on one side of the centrifugal base, a retaining ring is provided in the annular groove, both ends of the retaining ring are connected to the centrifugal base, and the centrifugal block assembly is connected to the retaining ring and located in the corresponding centrifugal block groove.

[0010] In the aforementioned motorcycle clutch, the two sides of the internal tooth friction plate and / or external tooth friction plate are respectively provided with concave and convex patterns.

[0011] In the aforementioned motorcycle clutch, the raised and recessed patterns are formed by crisscrossing grooves.

[0012] In the aforementioned motorcycle clutch, the transmission core has a first circular groove and a second circular groove at both ends, an annular boss is centrally located on the corresponding side of the centrifugal base, and an annular protrusion is located on the corresponding side of the transmission pressure plate. When the transmission core is connected to the centrifugal base and the transmission pressure plate, the outer cylindrical surface of the annular boss is adapted to the inner wall of the first circular groove, and the outer cylindrical surface of the annular protrusion of the transmission pressure plate is adapted to the inner wall of the second circular groove.

[0013] In the aforementioned motorcycle clutch, the elastic connection structure includes several locking pins, which are circumferentially distributed and pass through the end face pressure plate and the centrifugal base. A retaining spring is provided at one end of each locking pin that extends out of the centrifugal base, and a return spring is fitted on the locking pin between the end face pressure plate and the retaining spring.

[0014] In the aforementioned motorcycle clutch, the internal gear friction plate is a friction iron plate.

[0015] In the aforementioned motorcycle clutch, the end face pressure plate is a friction iron sheet.

[0016] In one of the aforementioned motorcycle clutches, the centrifugal block assembly comprises 4-16 centrifugal blocks.

[0017] The outstanding advantages of this utility model compared to the prior art are:

[0018] This utility model of a motorcycle clutch uses the centrifugal force generated by the centrifugal block assembly to drive the end face pressure plate, thereby quickly pressing the friction plate assembly (internal tooth friction plate and external tooth friction plate), achieving high efficiency and sensitive response in power transmission, resulting in a more delicate and uniform transmission process and smoother power output. At the same time, the elastic connection structure plays a buffering role, making the engagement process smoother and gentler, effectively reducing shock and jerking. In addition, the multi-plate friction plate assembly structure optimizes heat dissipation, significantly improving the clutch's durability and reliability under high-speed and high-load conditions. The overall structure is compact and has excellent performance. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the bowl-shaped superstructure of this utility model.

[0020] Figure 2 This is a schematic diagram of the disassembled bowl of this utility model;

[0021] Figure 3 This is a schematic diagram of the clutch block of this utility model installed in the clutch block groove of the clutch base by means of a retaining ring;

[0022] Figure 4 This is a schematic diagram of the end face pressure plate of this utility model fixed on the clutch base;

[0023] Figure 5 This is a schematic diagram of the transmission core of this utility model;

[0024] Figure 6 This is a schematic diagram of the external toothed plate of this utility model;

[0025] Figure 7 This is a schematic diagram of the internal toothed plate of this utility model;

[0026] Figure 8 This is a schematic diagram of the bowl of this utility model.

[0027] In the diagram: 1. Bowl; 2. Centrifuge base; 3. Centrifuge block groove; 4. Centrifuge block assembly; 5. End face pressure plate; 6. Transmission core; 7. Transmission pressure plate; 8. External tooth friction plate; 9. Internal tooth friction plate; 10. First convex tooth; 11. Second convex tooth; 12. Engaging groove; 13. Snap ring; 14. Annular groove; 15. Embossed pattern; 16. First circular groove; 17. Annular boss; 18. Snap pin; 19. Snap ring; 20. Return spring. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments. See also: Figure 1-8 :

[0029] This utility model provides a motorcycle clutch, which includes a bowl 1 and a circular centrifugal base 2. The outer circumference of the centrifugal base 2 is evenly distributed with a plurality of centrifugal block grooves 3, and the number of centrifugal block grooves 3 is even. In this embodiment, there are six centrifugal block grooves 3. Centrifugal block groups 4 are installed in the centrifugal block grooves 3 via mounting shafts, and there are six corresponding centrifugal block groups 4. An end face pressure plate 5 with an internal gear ring is provided on one end face of the centrifugal base 2 via an elastic connection structure. The end face pressure plate 5 is sleeved on a transmission core 6 with an external gear ring, and the internal and external gear rings mesh with each other. A transmission pressure plate 7 is provided at the other end of the transmission core 6. Multiple external gear friction plates 8 and multiple internal gear friction plates 9 are sequentially mounted on the transmission core 6 between the end face pressure plate 5 and the transmission pressure plate 7, starting from the end face pressure plate 5. The external gear friction plates 8 and internal gear friction plates 9 are arranged alternately. In this embodiment, there are three external gear friction plates 8 and two internal gear friction plates 9. The transmission pressure plate 7, transmission core 6, and centrifugal base 2 are connected by circumferentially distributed fasteners. The outer periphery of the external tooth friction plate 8 is provided with a plurality of first protruding teeth 10; in this embodiment, eight first protruding teeth 10 are provided. The first protruding teeth 10 engage with the meshing groove 12 on the inner wall of the bowl 1. The inner ring of the internal tooth friction plate 9 is provided with second protruding teeth 11 that mesh with the groove on the transmission core 6; in this embodiment, twenty second protruding teeth 11 are provided. The rotation of the centrifugal base 2 causes the centrifugal block assembly 4 to be subjected to centrifugal force, pressing it against the end face pressure plate 5, causing the external tooth friction plate 8 and the internal tooth friction plate 9 to tightly engage, driving the external tooth friction plate 8 to rotate, thereby driving the bowl 1 to rotate synchronously.

[0030] This utility model of a motorcycle clutch uses the centrifugal force generated by the centrifugal block assembly 4 to drive the end face pressure plate 5, thereby quickly pressing the friction plate assembly (internal tooth friction plate 9 and external tooth friction plate 8), achieving high efficiency and sensitive response in power transmission, making the transmission process more delicate and uniform, and the power output smoother; at the same time, the elastic connection structure plays a buffering role, making the engagement process smoother and gentler, effectively reducing shock and jerking; in addition, the multi-plate friction plate assembly structure optimizes heat dissipation, significantly improving the durability and reliability of the clutch under high-speed and high-load conditions, with a compact overall structure and excellent performance.

[0031] Furthermore, the mounting shaft is a retaining ring 13. An annular groove 14 is provided on one side of the centrifuge base 2, and the retaining ring 13 is disposed within the annular groove 14. Both ends of the retaining ring 13 are connected to the centrifuge base 2. The centrifuge block assembly 4 is connected to the retaining ring 13 and located within the corresponding centrifuge block slot 3. Each centrifuge block assembly 4 includes 4-16 centrifuge blocks. In this embodiment, 7 centrifuge blocks are provided.

[0032] During assembly, the required centrifuge block assemblies 4 are threaded onto the retaining rings 13, then distributed according to the positions of the centrifuge block slots 3, and installed into the centrifuge block slots 3. Finally, both ends of the retaining rings 13 are inserted into the corresponding insertion holes on the centrifuge base 2. When the end face pressure plate 5 is installed on this end face, the retaining rings 13 are limited between the centrifuge base 2 and the end face pressure plate 5 by the centrifuge block assemblies 4.

[0033] This utility model, through the structure of mounting the centrifugal block assembly 4 with the retaining ring 13, greatly simplifies the structural design and assembly process, and reduces production and maintenance costs.

[0034] To increase the engagement coefficient between the internal gear friction plate 9 and the external gear 10, the two sides of the internal gear plate 1 and / or the external gear friction plate 8 are respectively provided with raised and recessed patterns 15. In this embodiment, the raised and recessed patterns 154 are formed by interlaced grooves. In addition, the raised and recessed patterns 15 can also be formed by a frosted finish.

[0035] To ensure the coaxiality of the connection between the end face pressure plate 5 and the transmission core 6, and between the transmission core 6 and the transmission pressure plate 7, and to effectively prevent severe vibrations caused by mass eccentricity during high-speed rotation, thus ensuring smooth and quiet operation of the clutch, the centrifugal base 2 of this invention has an annular boss 17 centrally located on one side of the end face pressure plate 5. The end of the transmission core 6 connected to the boss has a first circular groove 16. When the centrifugal base 2 is connected to the transmission core 6, the outer wall of the annular boss 17 matches the inner wall of the first circular groove 16. Similarly, an annular protrusion is provided on the side of the transmission pressure plate 7 adjacent to the transmission core 6, and a second circular groove is provided on the corresponding end face of the transmission core 6. The outer wall of the annular protrusion matches the inner wall of the second circular groove.

[0036] It should be noted that the elastic connection structure of this utility model includes a plurality of locking pins 18, which are evenly distributed circumferentially and penetrate the end face pressure plate 5 and the centrifugal base 2. A retaining spring 19 is provided at one end of each locking pin 18 extending out of the centrifugal base 2, and a return spring 20 is fitted on the locking pin 18 between the end face pressure plate 5 and the retaining spring 19. In this embodiment, an even number of locking pins 18 are provided, namely six.

[0037] Furthermore, the internal tooth friction plate 9 of this invention is a friction iron plate. The end face pressure plate 5 is also a friction iron plate. The external tooth friction plate 8 can be made of steel, which can improve wear resistance and durability.

[0038] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A motorcycle clutch, characterized in that: The system includes a bowl (1) and a circular centrifugal base (2). The outer circumference of the centrifugal base (2) is evenly distributed with several centrifugal block grooves (3). Centrifugal block groups (4) are installed in the centrifugal block grooves (3) via mounting shafts. An end face pressure plate (5) with an internal gear ring is provided on one end face of the centrifugal base (2) via an elastic connection structure. The end face pressure plate (5) is sleeved on a transmission core (6) with an external gear ring. A transmission pressure plate (7) is provided at the other end of the transmission core (6). Multiple external gear friction plates (8) and multiple internal gear friction plates (9) are sequentially fitted onto the transmission core (6) of the end face pressure plate (5) and the transmission pressure plate (7), starting from the end face pressure plate (5). (8) Alternating with the internal tooth friction plate (9), the transmission pressure plate (7), transmission core (6) and centrifugal base (2) are connected by fasteners. The outer periphery of the external tooth friction plate (8) is provided with a number of first protrusions (10). The first protrusions (10) mesh with the meshing groove (12) on the inner wall of the bowl (1). The inner ring of the internal tooth friction plate (9) is provided with a second protrusion (11) that meshes with the groove on the transmission core (6). The centrifugal base (2) rotates so that the centrifugal block group (4) is subjected to centrifugal force and presses against the end face pressure plate (5), so that the internal tooth friction plate (9) and the external tooth friction plate (8) are tightly combined. The external tooth friction plate (8) drives the bowl (1) to rotate synchronously.

2. A motorcycle clutch according to claim 1, characterized in that: The mounting shaft is a retaining ring (13). An annular groove (14) is provided on one side of the centrifuge base (2). The retaining ring (13) is provided in the annular groove (14). The two ends of the retaining ring (13) are connected to the centrifuge base (2). The centrifuge block group (4) is connected to the retaining ring (13) and located in the corresponding centrifuge block groove (3).

3. A motorcycle clutch according to claim 1 or 2, characterized in that: The two sides of the internal tooth friction plate (9) and / or the external tooth friction plate (8) are respectively provided with concave and convex patterns (15).

4. A motorcycle clutch according to claim 3, characterized in that: The raised and recessed pattern (15) is formed by crisscrossing grooves.

5. A motorcycle clutch according to claim 1 or 2, characterized in that: The transmission core (6) has a first circular groove (16) and a second circular groove at its two ends respectively. An annular boss (17) is provided in the center on the corresponding side of the centrifugal base (2). An annular protrusion is provided on the corresponding side of the transmission pressure plate (7). When the transmission core (6) is connected to the centrifugal base (2) and the transmission pressure plate (7), the outer cylindrical surface of the annular boss (17) is adapted to the inner side wall of the first circular groove (16), and the outer cylindrical surface of the annular protrusion of the transmission pressure plate (7) is adapted to the inner side wall of the second circular groove.

6. A motorcycle clutch according to claim 1, characterized in that: The elastic connection structure includes several locking pins (18), which are evenly distributed circumferentially and pass through the end face pressure plate (5) and the centrifugal base (2). A retaining spring (19) is provided at one end of each locking pin (18) that extends out of the centrifugal base (2). A return spring (20) is fitted on the locking pin (18) between the end face pressure plate (5) and the retaining spring (19).

7. A motorcycle clutch according to claim 1, characterized in that: The internal tooth friction plate (9) is a friction iron plate.

8. A motorcycle clutch according to claim 1 or 7, characterized in that: The end face pressure plate (5) is a friction iron sheet.

9. A motorcycle clutch according to claim 1, characterized in that: The centrifuge block group (4) comprises 4-16 centrifuge blocks.

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