Clutch shifting fork mechanism of combined gearbox

By using a combined locking method of the fork ring and counterhead bolt in the combined gearbox clutch fork, the problem of the fork cannot be shared is solved, and the universality and convenience of the fork are achieved.

CN223282424UActive Publication Date: 2025-08-29CHONGQING XUSHENG TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422660340.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-08-29
Estimated Expiration
2034-10-31

AI Technical Summary

Technical Problem

Due to the large size and connection method of the existing combined gearbox clutch forks, the forks cannot be shared, which is poor in practicality and universality, and is inconvenient to replace.

Method used

The fork ring is used to connect to the fork shaft, and the clamping assembly and counterhead bolts are combined to achieve a stable connection of the fork, which is suitable for clutch of different specifications.

Benefits of technology

It improves the practicality and universality of the fork, facilitates the replacement and installation of the fork, and is suitable for clutches of different specifications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a combination gear box clutch shifting fork mechanism which comprises a shifting fork ring and shifting fork rods, the shifting fork rods are fixedly connected to the circumferential face of the shifting fork ring, the number of the shifting fork rods is two, the shifting fork rods are symmetrically distributed on the two sides of the shifting fork ring, and a clamping assembly is arranged on the inner circumferential face of the shifting fork ring. By arranging a shifting fork ring, a shifting fork rod, a counterbore, a countersunk bolt, an outer sleeve, a clamping spring, an inner limiting plate, an outer limiting ring, a connecting rod and a clamping plate, the shifting fork ring is connected to a clutch shifting fork shaft in a sleeving mode, the clamping plate is tightly attached to the circumferential face of the shifting fork shaft under the action of the clamping spring, then the countersunk bolt is screwed, one end of the countersunk bolt locks the clamping plate again, and the clamping plate is tightly clamped. The shifting fork is fixed on the shifting fork shaft, so that the shifting fork can be suitable for clutches of different specifications, the practicability and the universality of the shifting fork are improved, when all countersunk bolts are loosened, the shifting fork ring and the shifting fork shaft can be loosened, and the shifting fork can be conveniently replaced.
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Description

Technical Field

[0001] The utility model relates to the technical field of clutch forks, in particular to a combined gear box clutch fork mechanism. Background Art

[0002] The clutch fork is a key component in a vehicle's transmission. It's connected to the shift lever and located at its lower end. The fork's primary function is to facilitate clutch shifting, changing the input / output speed ratio by moving the intermediate shift wheel, thereby enabling the transmission's shifting function. In the clutch system, the fork uses a lever to push the release bearing, enabling the clutch to engage and disengage. This is particularly important in manual transmission vehicles.

[0003] In the existing combined gearbox clutch shift fork, the shift fork is sleeved on the shift fork shaft and fixedly connected by pins. However, since the combined gearbox clutches of different manufacturers are different, the sizes and connection methods of the shift fork and the shift fork shaft are also different. Not only can the shift forks not be shared, but the replacement of the shift forks is also inconvenient, and the practicality and universality are poor. Utility Model Content

[0004] The purpose of the utility model is to provide a combined gearbox clutch fork mechanism, wherein the shift fork ring is sleeved on the clutch fork shaft, the clamping plate is tightly attached to the circumferential surface of the shift fork shaft under the action of a clamping spring, and then the countersunk bolt is screwed so that one end of the countersunk bolt can lock the clamping plate again, thereby fixing the shift fork on the shift fork shaft, making the shift fork applicable to clutches of different specifications, improving the practicality and universality of the shift fork, and when all the countersunk bolts are loosened, the shift fork ring and the shift fork shaft can be loosened, which is also convenient for replacing the shift fork.

[0005] To achieve the above-mentioned purpose, a combined gearbox clutch fork mechanism is provided, comprising: a shift fork ring and a shift fork rod, the shift fork rod being fixedly connected to the circumferential surface of the shift fork ring, the shift fork rod being provided with two and symmetrically distributed on both sides of the shift fork ring, the inner circumferential surface of the shift fork ring being provided with a clamping assembly, the clamping assembly being provided with multiple and evenly distributed on the inner side of the shift fork ring, the clamping assembly comprising an outer sleeve, a clamping spring, an inner limit plate, an outer limit ring, a connecting rod and a clamping plate, the inner circumferential surface of the shift fork ring being fixedly connected with an outer sleeve, the inside of the outer sleeve being provided with a clamping spring and an inner limit plate, the outer sleeve being fixedly connected to the outer limit ring on the side away from the shift fork ring, the inner limit plate being fixedly connected to the connecting rod on the side away from the clamping spring, and the connecting rod being fixedly connected to the clamping plate on the side away from the inner limit plate.

[0006] According to the combined gearbox clutch fork mechanism, a countersunk hole is provided on the circumferential surface of the fork ring, and a countersunk bolt is provided inside the countersunk hole. The countersunk bolt is used to further lock the clamping plate.

[0007] According to the aforementioned combined gearbox clutch fork mechanism, one end of the clamping spring is fixedly connected to the fork ring, and the other end of the clamping spring is fixedly connected to the inner limit plate. When the fork ring is sleeved on the fork shaft, the clamping spring forces the clamping plate to adhere tightly to the surface of the fork shaft, forming a preliminary fixation.

[0008] According to the combined gearbox clutch fork mechanism, the countersunk bolt is threadedly connected to the fork ring and penetrates the fork ring. When the countersunk bolt is turned, the countersunk bolt can be continuously extended into the fork ring.

[0009] According to the combined gearbox clutch fork mechanism, the end of the countersunk bolt away from the fork ring is in close contact with the outer arc surface of the clamping plate. When the countersunk bolt is turned, the countersunk bolt presses the clamping plate, thereby further making the clamping plate close to the surface of the fork shaft.

[0010] According to the combined gearbox clutch fork mechanism, the countersunk holes and countersunk bolts are provided in multiple numbers and symmetrically distributed on the upper and lower sides of the clamping assembly. Both ends of the clamping plate can be locked, thereby improving the stability and firmness of the connection between the clamping plate and the fork shaft.

[0011] According to the combined gearbox clutch fork mechanism, the clamping plate is arc-shaped, and anti-skid patterns are provided on the inner arc surface of the clamping plate, thereby improving the anti-skid performance of the clamping plate and preventing slippage and poor connection when the clamping plate is in close contact with the fork shaft.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging a shift fork ring, a shift fork rod, a countersunk hole, a countersunk bolt, an outer sleeve, a clamping spring, an inner limit plate, an outer limit ring, a connecting rod and a clamping plate, the shift fork ring is sleeved on the clutch shift fork shaft, and the clamping plate is tightly attached to the circumferential surface of the shift fork shaft under the action of the clamping spring, and then the countersunk bolt is turned so that one end of the countersunk bolt locks the clamping plate again, thereby fixing the shift fork on the shift fork shaft, so that the shift fork can be applied to clutches of different specifications, thereby improving the practicality and universality of the shift fork; when all the countersunk bolts are loosened, the shift fork ring and the shift fork shaft can be loosened, which is also convenient for replacing the shift fork.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a front view of a combined gearbox clutch fork mechanism of the utility model;

[0016] Figure 2 This is a cross-sectional view of a clamping assembly of a combined gearbox clutch fork mechanism of the present utility model;

[0017] Figure 3 This is a cross-sectional view of a shift fork ring of a combined gearbox clutch shift fork mechanism of the present utility model;

[0018] Figure 4 This is a top view of a combined gearbox clutch fork mechanism of the utility model.

[0019] In the figure: 1. fork ring; 2. fork rod; 3. clamping assembly; 4. countersunk hole; 5. countersunk bolt; 301. outer sleeve; 302. clamping spring; 303. inner limit plate; 304. outer limit ring; 305. connecting rod; 306. clamping plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4The utility model provides a technical solution: a combined gearbox clutch fork mechanism, comprising: a fork ring 1 and a fork rod 2, the circumferential surface of the fork ring 1 is fixedly connected to the fork rod 2, the number of the fork rod 2 is provided with two, and they are symmetrically distributed on both sides of the fork ring 1, a clamping assembly 3 is provided on the inner circumferential surface of the fork ring 1, the number of the clamping assemblies 3 is provided in plurality, and they are evenly distributed on the inner side of the fork ring 1, the clamping assembly 3 comprises an outer sleeve 301, a clamping spring 302, an inner limit plate 303, an outer limit ring 304, a connecting rod 305 and a clamping plate 306, the inner circumferential surface of the fork ring 1 is fixedly connected to the outer sleeve 301, the interior of the outer sleeve 301 is provided with a clamping spring 302 and an inner limit plate 303, the outer sleeve 301 is fixedly connected to the outer limit When the fork is in the unlocking state, the cam 306 is locked and the locking cam 308 is locked, so the cam 306 is locked.

[0022] The circumferential surface of the shift fork ring 1 is provided with a countersunk hole 4, and a countersunk bolt 5 is provided inside the countersunk hole 4. There are multiple countersunk holes 4 and countersunk bolts 5, and they are symmetrically distributed on the upper and lower sides of the clamping assembly 3. The countersunk bolt 5 is threadedly connected to the shift fork ring 1, and the countersunk bolt 5 passes through the shift fork ring 1. The end of the countersunk bolt 5 away from the shift fork ring 1 is close to the outer arc surface of the splint 306. When the countersunk bolt 5 is turned, the countersunk bolt 5 can be continuously extended into the shift fork ring 1, thereby squeezing the splint 306, so that the splint 306 is further close to the surface of the shift fork shaft, thereby stably fixing the shift fork on the shift fork shaft. The degree of turning of the countersunk bolts 5 of shift fork shafts of different sizes is different, but all of them can achieve the fixation of the splint 306 and the shift fork shaft, thereby improving the practicality and universality of the shift fork. When all the countersunk bolts 5 are loosened, the splint 306 and the shift fork shaft can be loosened.

[0023] Working principle: The shift fork ring 1 is sleeved on the clutch shift fork shaft, and the clamping plate 306 is tightly attached to the circumferential surface of the shift fork shaft under the action of the clamping spring 302, and then the countersunk bolt 5 is turned, which can make the countersunk bolt 5 continuously extend into the shift fork ring 1, and then squeeze the clamping plate 306, so that the clamping plate 306 is further tightly attached to the surface of the shift fork shaft to complete the locking. There are countersunk bolts 5 at both ends of the clamping plate 306, so that the clamping plate 306 is stably fixed on the shift fork shaft. Different sizes of shift fork shafts result in different clamping forces of the clamping plate 306, and the degree of tightening of the countersunk bolts 5 is different, but both can achieve the fixation of the clamping plate 306 and the shift fork shaft, so that the shift fork can be applied to clutches of different specifications, thereby improving the practicality and universality of the shift fork. When all the countersunk bolts 5 are loosened, the clamping plate 306 and the shift fork shaft can be loosened, thereby facilitating the replacement of the shift fork.

[0024] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A combined gearbox clutch fork mechanism, comprising: A shift fork ring (1) and a shift fork rod (2), characterized in that a shift fork rod (2) is fixedly connected to the circumferential surface of the shift fork ring (1), two shift fork rods (2) are provided and symmetrically distributed on both sides of the shift fork ring (1), a clamping assembly (3) is provided on the inner circumferential surface of the shift fork ring (1), a plurality of clamping assemblies (3) are provided and evenly distributed on the inner side of the shift fork ring (1), and the clamping assembly (3) includes an outer sleeve (301), a clamping spring (302), an inner limit plate (303), an outer limit ring (304), a connecting rod (305), and a connecting rod (306). The outer sleeve (301) is fixedly connected to the inner circumferential surface of the shift fork ring (1), a clamping spring (302) and an inner limit plate (303) are arranged inside the outer sleeve (301), the outer limit ring (304) is fixedly connected to the side of the outer sleeve (301) away from the shift fork ring (1), the connecting rod (305) is fixedly connected to the side of the inner limit plate (303) away from the clamping spring (302), and the clamping plate (306) is fixedly connected to the side of the connecting rod (305) away from the inner limit plate (303).

2. A combined gearbox clutch fork mechanism according to claim 1, characterized in that: A countersunk hole (4) is provided on the circumferential surface of the shift fork ring (1), and a countersunk bolt (5) is provided inside the countersunk hole (4).

3. A combined gearbox clutch fork mechanism according to claim 2, characterized in that: The countersunk holes (4) and countersunk bolts (5) are provided in plural numbers and are symmetrically distributed on the upper and lower sides of the clamping assembly (3).

4. The combined gearbox clutch fork mechanism according to claim 1, characterized in that: One end of the clamping spring (302) is fixedly connected to the shift fork ring (1), and the other end of the clamping spring (302) is fixedly connected to the inner limit plate (303).

5. The combined gearbox clutch fork mechanism according to claim 1, characterized in that: The clamping plate (306) is arc-shaped, and anti-slip lines are provided on the inner arc surface of the clamping plate (306).

6. The combined gearbox clutch fork mechanism according to claim 2, characterized in that: One end of the countersunk bolt (5) away from the shift fork ring (1) is in close contact with the outer arc surface of the clamping plate (306).

7. The combined gearbox clutch fork mechanism according to claim 2, characterized in that: The countersunk bolt (5) is threadedly connected to the shift fork ring (1), and the countersunk bolt (5) passes through the shift fork ring (1).