Built-in spring centrifugal clutch device for transmission of two-wheeled and three-wheeled motorcycle
By using an internal support spring to support the centrifugal swing block in the clutch of two-wheel and three-wheeled motorcycles, the problem of difficulty in controlling and easy breaking of the external tension spring is solved, and the stable combination of the clutch and the extension of its service life is achieved.
Patent Information
- Application Number
- CN202421756916.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-24
AI Technical Summary
In the centrifugal clutches of existing two-wheel and three-wheel motorcycles, the distance of the external tension spring is short and difficult to control, which can easily lead to matching errors, decoupling or breakage, causing a semi-clutch phenomenon, increasing fuel consumption and accelerating clutch wear.
A centralized clutch device with an internal spring is designed to support the centrifugal swing block of the clutch through the internal support spring, and a long installation distance is reserved to ensure the precise elastic matching of the internal support spring and reduce elastic fatigue.
It realizes a firm and stable combination of the clutch, reduces fuel consumption and wear, and extends the service life of the clutch.
Smart Images

Figure CN222797984U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a transmission clutch device for a two-wheeled or three-wheeled motorcycle engine, in particular to an internally mounted spring centrifugal clutch device for a two-wheeled or three-wheeled motorcycle engine. Background Art
[0002] At present, the clutch part of the engine transmission of two-wheeled and three-wheeled vehicles on the market adopts a centrifugal clutch. The centrifugal clutch of the engine transmission of two-wheeled and three-wheeled motorcycles uses the centrifugal force of the speed to swing the centrifugal block to engage and rotate; most of the centrifugal blocks of the centrifugal clutch of the existing two-wheeled and three-wheeled motorcycle engine transmission are external tension springs. Due to the short distance between the two ends of the tension spring, the performance of the tension spring is difficult to control, and the matching error phenomenon of installation often occurs. During use, the tension spring of the centrifugal clutch is easy to be unhooked or broken. During long-term operation, individual tension springs become fatigued or do not rebound, which easily causes the clutch to be half-clutched, increasing the fuel consumption of two-wheeled and three-wheeled motorcycles; in addition, the half-clutch accelerates the wear of the clutch, even damages and scraps it, and the cost of repair and replacement is high; in view of the above-mentioned reasons, a built-in spring centrifugal clutch device for two-wheeled and three-wheeled motorcycle transmission is now proposed. Utility Model Content
[0003] The purpose of the utility model is to overcome the problems that the distance of the external tension spring of the centrifugal clutch of the existing two-wheeled and three-wheeled motorcycles is short, the performance of the tension spring is difficult to control, and there is a matching error. During use, the tension spring of the centrifugal clutch is easy to be unhooked or broken, fatigued or not rebound, which is easy to cause the clutch semi-clutch phenomenon, increasing the fuel consumption of the two-wheeled and three-wheeled motorcycles; in addition, the clutch semi-clutch accelerates the wear, even damage and scrapping of the clutch, and the cost of repair and replacement is high: through reasonable design, a centrifugal clutch device with an internal spring for transmission of two-wheeled and three-wheeled motorcycles is provided; the utility model is an internal elastic support centrifugal clutch device for transmission of two-wheeled and three-wheeled vehicles, the centrifugal block of the clutch is supported by the internal support spring, a long installation distance is reserved between the clutch rotating plate and the centrifugal block, the elastic range of the internal support spring is large, the elastic matching of the internal support spring is accurate, and the installation is convenient, and the elastic fatigue or non-rebound phenomenon of the internal support spring can be reduced, ensuring that the clutch is firmly and stably combined, saving energy and reducing consumption, and prolonging the service life of the clutch.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an internal spring centrifugal clutch device for a two-wheeled three-wheeled motorcycle transmission, which is composed of: a clutch, a driving shaft, a clutch turntable, a turntable spring seat, a turntable spring fixing pin, a main shaft sleeve, a centrifugal throw block, a throw block shaft hole, a throw block spring seat, a throw block spring fixing pin, a throw block arm, a turntable slot, a friction plate, a driven cylinder body, a rotating shaft, an inner support spring, a power assembly, a throw block shaft, and a turntable throw block shaft hole; the outer side of the clutch is set as a driven cylinder body, one end of the driven cylinder body is set as a cover body, a rotating shaft is set in the middle of the outer side of the cover body, and the other end of the driven cylinder body is set as a cover body. A reserved clutch cavity is arranged at the end, a throw block assembly is arranged in the clutch cavity, a clutch turntable is arranged at the center of the throw block assembly, a power assembly is arranged on one side of the throw block assembly, and a driving shaft is arranged at the center of the power assembly and the throw block assembly; a main shaft sleeve is arranged in the middle of the clutch turntable, a main shaft hole is reserved in the center of the main shaft sleeve, a driving shaft is arranged in the main shaft hole, the edge of the clutch turntable is arranged in a triangle, turntable spring seats are arranged at the corner ends of the three corners respectively, a centrifugal throw block is arranged on the outer side of the turntable spring seat, a friction plate is arranged on the centrifugal throw block, the outer side of the friction plate is arranged corresponding to the edge of the driven cylinder cavity, and a gap is reserved between the outer side of the friction plate and the driven cylinder.
[0005] A turntable spring fixing pin is arranged on the same side of the turntable spring seat, an inner supporting spring is arranged on the turntable spring fixing pin, the turntable spring seat is arranged as a plug plate, a turntable swing block shaft hole is reserved at the corner of the turntable spring seat, and a turntable swing block shaft is arranged in the turntable swing block shaft hole; a pair of swing block arms are arranged on both sides of the lower part of the centrifugal swing block, a turntable slot is reserved for the pair of swing block arms, and a turntable spring seat is arranged in the turntable slot;
[0006] A pair of swing block arms of the centrifugal swing block have swing block shaft holes reserved at the lower ends, the swing block shaft holes and the turntable swing block shaft holes are arranged to penetrate each other, and a turntable swing block shaft is arranged in the swing block shaft holes and the turntable swing block shaft holes; the bottom of the turntable slot is arranged as a swing block spring seat, a swing block spring fixing pin is arranged in the middle of the inner side of the swing block spring seat, the swing block spring fixing pin is arranged corresponding to the turntable spring seat, and an inner support spring is arranged between the swing block spring fixing pin and the turntable spring seat; the utility model is an internal elastic support centrifugal clutch device for two-wheel and three-wheel vehicle transmission, the centrifugal swing block of the clutch is supported by the inner support spring, a longer installation distance is reserved between the clutch turntable and the centrifugal swing block, the elastic range of the inner support spring is large, the elastic matching of the inner support spring is accurate, and the installation is convenient, which can reduce the elastic fatigue or non-rebound phenomenon of the inner support spring, ensure that the clutch is firmly and stably engaged, save energy and reduce consumption, and can extend the service life of the clutch.
[0007] Beneficial effects: The utility model is an internal elastically supported centrifugal clutch device for two-wheeled and three-wheeled vehicle transmissions. The centrifugal block of the clutch is supported by an internal supporting spring. A relatively long installation distance is reserved between the clutch turntable and the centrifugal block. The elastic range of the internal supporting spring is relatively large. The elastic matching of the internal supporting spring is accurate and the installation is convenient. The elastic fatigue or non-rebound phenomenon of the internal supporting spring can be reduced, thereby ensuring that the clutch is firmly and stably engaged, saving energy and reducing consumption, and extending the service life of the clutch. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The utility model is further described below in conjunction with the accompanying drawings:
[0009] Figure 1 It is a schematic diagram of the general assembly structure;
[0010] Figure 2 yes Figure 1 A side view structural schematic diagram of;
[0011] Figure 3 yes Figure 1 Schematic diagram of the local structure;
[0012] Figure 4 yes Figure 1 Schematic diagram of the centrifugal block structure;
[0013] Figure 5 yes Figure 4 A side view structural schematic diagram of;
[0014] Figure 6 yes Figure 1 Installation status breakdown diagram;
[0015] Figure 1 , 2 , 3, 4, 5, 6: clutch 1, driving shaft 2, clutch turntable 3, turntable spring seat 3-1, turntable spring fixing pin 3-2, main shaft sleeve 3-3, centrifugal throw block 4, throw block shaft hole 4-1, throw block spring seat 4-2, throw block spring fixing pin 4-3, throw block arm 4-4, turntable slot 4-5, friction plate 5, driven cylinder 6, rotating shaft 6-1, inner support spring 7, power assembly 8, throw block shaft 9, turntable throw block shaft hole 9-1. DETAILED DESCRIPTION
[0016] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:
[0017] The outer side of the clutch 1 is set as a driven cylinder body 6, one end of the driven cylinder body 6 is set as a cover body, a rotating shaft 6-1 is set in the middle of the outer side of the cover body, a reserved clutch cavity is set at the other end of the driven cylinder body 6, a swing block assembly is set in the clutch cavity, a clutch turntable 3 is set in the center of the swing block assembly, a power assembly 8 is set on one side of the swing block assembly, and a driving shaft 2 is set in the center of the power assembly 8 and the swing block assembly; a main shaft sleeve 3-3 is set in the middle of the clutch turntable 3, a main shaft hole is reserved in the center of the main shaft sleeve 3-3, and the driving shaft 2 is set in the main shaft hole, the edge of the clutch turntable 3 is set as a triangle, and turntable spring seats 3-1 are respectively set at the corner ends of the three corners, a centrifugal swing block 4 is set on the outer side of the turntable spring seat 3-1, and a friction plate 5 is set on the centrifugal swing block 4, the outer side of the friction plate 5 is set corresponding to the edge of the driven cylinder body 6 cavity, and a gap is reserved between the outer side of the friction plate 5 and the driven cylinder body 6.
[0018] A turntable spring fixing pin 3-2 is respectively arranged on the same side of the turntable spring seat 3-1, and an inner supporting spring 7 is respectively arranged on the turntable spring fixing pin 3-2. The turntable spring seat 3-1 is arranged as a swing block plug plate, and a turntable swing block shaft hole 9-1 is respectively reserved at the corner of the turntable spring seat 3-1, and a turntable swing block shaft 9 is arranged in the turntable swing block shaft hole 9-1; a pair of swing block arms 4-4 are arranged on both sides of the lower part of the centrifugal swing block 4, and a turntable slot 4-5 is reserved for the pair of swing block arms 4-4, and a turntable spring seat 3-1 is arranged in the turntable slot 4-5.
[0019] A pair of swing block arms 4-4 of the centrifugal swing block 4 have reserved swing block shaft holes 4-1 at their lower ends, the swing block shaft holes 4-1 and the turntable swing block shaft holes 9-1 are arranged to penetrate each other, and a turntable swing block shaft 9 is arranged in the swing block shaft holes 4-1 and the turntable swing block shaft holes 9-1; a swing block spring seat 4-2 is arranged at the bottom of the turntable slot 4-5, a swing block spring fixing pin 4-3 is arranged at the inner middle part of the swing block spring seat 4-2, the swing block spring fixing pin 4-3 is arranged corresponding to the turntable spring seat 3-1, and an inner support spring 7 is arranged between the swing block spring fixing pin 4-3 and the turntable spring seat 3-1.
Claims
1. A spring-loaded centrifugal clutch device for a two-wheeled three-wheeled motorcycle transmission, comprising: a clutch (1), a driving shaft (2), a clutch turntable (3), a turntable spring seat (3-1), a turntable spring fixing pin (3-2), a main shaft sleeve (3-3), a centrifugal throw block (4), a throw block shaft hole (4-1), a throw block spring seat (4-2), a throw block spring fixing pin (4-3), a throw block arm (4-4), a turntable slot (4-5), a friction plate (5), a driven cylinder (6), a rotating shaft (6-1), an inner support spring (7), a power assembly (8), a throw block shaft (9), and a turntable throw block shaft hole (9-1); characterized in that: The clutch (1) is provided with a driven cylinder (6) at the outer side, one end of the driven cylinder (6) is provided with a cover, a rotating shaft (6-1) is provided at the middle of the outer side of the cover, a reserved clutch cavity is provided at the other end of the driven cylinder (6), a swing block assembly is provided in the clutch cavity, a clutch rotating disk (3) is provided at the center of the swing block assembly, a power assembly (8) is provided at one side of the swing block assembly, and a driving shaft (2) is provided at the center of the power assembly (8) and the swing block assembly; a main shaft sleeve (3-3) is provided at the middle of the clutch rotating disk (3). ), a main shaft hole is reserved at the center of the main shaft sleeve (3-3), a driving shaft (2) is arranged in the main shaft hole, the edge of the clutch rotating disk (3) is arranged in a triangle, the corner ends of the three corners are respectively arranged with a rotating disk spring seat (3-1), a centrifugal block (4) is arranged outside the rotating disk spring seat (3-1), a friction plate (5) is arranged on the centrifugal block (4), the outer side of the friction plate (5) is arranged corresponding to the edge of the cavity of the driven cylinder body (6), and a clearance is reserved between the outer side of the friction plate (5) and the driven cylinder body (6).
2. The inner spring centrifugal clutch device for a two-wheeled or three-wheeled motorcycle transmission according to claim 1, characterized in that: A turntable spring fixing pin (3-2) is respectively arranged on the same side of the turntable spring seat (3-1), an inner support spring (7) is respectively arranged on the turntable spring fixing pin (3-2), the turntable spring seat (3-1) is arranged as a swing block plug plate, a turntable swing block shaft hole (9-1) is respectively reserved at the corner of the turntable spring seat (3-1), and a turntable swing block shaft (9) is arranged in the turntable swing block shaft hole (9-1); a pair of swing block arms (4-4) are arranged on both sides of the lower part of the centrifugal swing block (4), a turntable slot (4-5) is reserved in the pair of swing block arms (4-4), and the turntable spring seat (3-1) is arranged in the turntable slot (4-5).
3. The inner spring centrifugal clutch device for a two-wheeled or three-wheeled motorcycle transmission according to claim 1, characterized in that: A pair of swing block arms (4-4) of the centrifugal swing block (4) have swing block shaft holes (4-1) reserved at their lower ends, the swing block shaft holes (4-1) and the turntable swing block shaft holes (9-1) are arranged to penetrate each other, and a turntable swing block shaft (9) is arranged in the swing block shaft holes (4-1) and the turntable swing block shaft holes (9-1); a swing block spring seat (4-2) is arranged at the bottom of the turntable slot (4-5), a swing block spring fixing pin (4-3) is arranged at the middle of the inner side of the swing block spring seat (4-2), the swing block spring fixing pin (4-3) and the turntable spring seat (3-1) are arranged correspondingly, and an inner support spring (7) is arranged between the swing block spring fixing pin (4-3) and the turntable spring seat (3-1).