Automobile third-gear and fourth-gear shifting fork

Abstract

The utility model provides a third-gear and fourth-gear shifting fork of an automobile. The third-gear and fourth-gear shifting fork comprises a shifting fork body and a disassembling and assembling mechanism. Poking claws are fixedly arranged at the two ends of the shifting fork body and sleeved with wear-resisting sleeves. The dismounting and mounting mechanism comprises a connecting rod body fixedly connected to the outer side of the pusher dog and a fixed round block fixedly embedded in the wear-resistant sleeve, a through groove allowing the connecting rod body to penetrate through is formed in the fixed round block, an empty groove is formed in the connecting rod body, and a limiting spring is fixedly connected to the inner side wall of the empty groove; one end of the limiting spring is fixedly connected with a movable clamping block used for clamping the fixed round block. Through the arrangement of the dismounting mechanism, the connecting rod body can penetrate through the through groove after the wear-resistant sleeve is tightly attached to the pusher dog, so that the movable clamping block can abut against the fixed round block on the outer side of the pusher dog under the reset action of the limiting spring after being squeezed into the empty groove; and in addition, the wear-resistant sleeve can be quickly disassembled in the mode that the movable clamping block is pressed into the empty groove.

Description

Technical Field

[0001] The utility model relates to an automobile shift fork, in particular to an automobile third and fourth gear shift fork, and belongs to the technical field of automobile accessories. Background Art

[0002] As is known to all, automobile transmission mainly refers to the gearbox of automobile, which is divided into manual and automatic. The manual transmission is mainly composed of gears and shafts, and speed and torque are changed by different gear combinations; while the automatic transmission is composed of a torque converter, a gear transmission and a hydraulic control system, and speed and torque are changed by hydraulic transmission and gear combination; in the process of automobile speed change, a third and fourth gear shift fork is needed. As the prior art of the third and fourth gear shift fork, a Chinese patent (publication number: CN207297853U) discloses a third and fourth gear shift fork, which belongs to the technical field of automobile accessories. It solves the problem that the service life of the existing shift fork is not long. The third and fourth gear shift fork includes a shift fork body, the end of the shift fork body has a protruding connection part, and the other end of the shift fork body is provided with two symmetrically arranged shift claws, the two shift claws are arranged in parallel, and the shift claws are provided with a wear-resistant block, and the wear-resistant block is threadedly connected with a plurality of locking screws, and the inner end of the locking screw is against the shift claw. The third and fourth gear shift fork has the advantage of a long service life.

[0003] However, although the service life of the third and fourth gear shift forks in the prior art is improved by the provision of wear-resistant blocks, the wear-resistant blocks need to be replaced regularly, and the prior art requires corresponding disassembly and assembly tools to disassemble and assemble the wear-resistant blocks by tightening bolts, which is not conducive to more convenient replacement of the wear-resistant blocks. For this reason, a third and fourth gear shift fork for an automobile is proposed. Utility Model Content

[0004] In view of this, the utility model provides a third and fourth gear shift fork for an automobile to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0005] The technical solution of the utility model is implemented as follows: a third and fourth gear shift fork for an automobile, comprising a shift fork body and a disassembly and assembly mechanism;

[0006] Both ends of the shift fork body are fixedly provided with shift claws, and the shift claws are covered with wear-resistant sleeves;

[0007] The disassembly and assembly mechanism includes a connecting rod body fixedly connected to the outer side of the pusher claw and a fixed round block fixedly embedded in the wear-resistant sleeve, the fixed round block is provided with a through groove for the connecting rod body to pass through, the connecting rod body is provided with an empty groove, the inner side wall of the empty groove is fixedly connected to a limit spring, one end of the limit spring is fixedly connected to a movable clamping block for clamping the fixed round block, and the movable clamping block is movably connected to the inside of the empty groove.

[0008] Further preferably, the fork body is a forged one-piece structure.

[0009] Further preferably, a connecting portion is fixedly provided on the top of the fork body, and a connecting hole is opened inside the connecting portion.

[0010] Further preferably, the wear-resistant sleeve is a polytetrafluoroethylene wear-resistant sleeve.

[0011] Further preferably, a sliding groove is provided on the inner side wall of the empty groove, a sliding block is slidably connected to the inner side wall of the sliding groove, and one side of the sliding block is fixedly connected to the movable clamping block.

[0012] Further preferably, the number of the slide grooves and the number of the sliding blocks are both two, the two slide grooves are symmetrically arranged on the inner side wall of the empty groove, and the two sliding blocks are symmetrically arranged on both sides of the movable clamping block.

[0013] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0014] First, the utility model sets a disassembly and assembly mechanism, so that after the wear-resistant sleeve is tightly attached to the pusher claw, the connecting rod body can pass through the through groove, so that after the movable clamping block is squeezed into the empty groove, the fixed round block can be pressed against the outer side of the pusher claw under the resetting action of the limit spring, and the wear-resistant sleeve can also be quickly disassembled by pressing the movable clamping block into the empty groove.

[0015] Second, the utility model provides a wear-resistant sleeve with the functions of quick installation and convenient disassembly, making it more convenient to replace the wear-resistant sleeve after it is worn, thereby effectively improving the work efficiency when the wear-resistant sleeve is replaced regularly.

[0016] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is an enlarged schematic diagram of area A of the structural diagram in the utility model;

[0020] Figure 3 It is a structural diagram of the hollow groove and the limit spring of the utility model;

[0021] Figure 4 It is a structural diagram of the fixed round block and the through groove in the utility model.

[0022] Figure numerals: 1. fork body; 10. wear-resistant sleeve; 11. connecting part; 12. connecting hole; 13. shift claw; 2. disassembly and assembly mechanism; 20. fixed round block; 21. through groove; 22. connecting rod body; 23. empty groove; 24. limit spring; 25. movable clamping block; 26. slider; 27. slide groove. DETAILED DESCRIPTION

[0023] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0024] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-4 As shown, an embodiment of the utility model provides: a third- and fourth-speed shift fork for an automobile, comprising a shift fork body 1 and a disassembly and assembly mechanism 2.

[0026] In one embodiment, in order to improve the wear resistance of the shifter claw 13 and thus increase the service life of the fork body 1 , shifter claws 13 are fixedly provided at both ends of the fork body 1 , and the shifter claws 13 are sleeved with wear-resistant sleeves 10 .

[0027] In one embodiment, in order to install the wear-resistant sleeve 10, the wear-resistant sleeve 10 can be firstly pressed against the outer side of the pusher claw 13, so that the connecting rod body 22 can penetrate the through slot 21 of the fixed round block 20, and then the movable clamping block 25 can be pushed into the empty slot 23 under the squeezing action of the inner wall of the through slot 21, and when the movable clamping block 25 extends out of the through slot 21, it can be moved out of the empty slot 23 under the reset action of the limit spring 24 to press against the fixed round block 20, so that the wear-resistant sleeve 10 can be quickly fixed on the pusher claw 13, and in addition, by pressing the movable clamping block 25 The wear-resistant sleeve 10 can also be quickly disassembled by inserting it into the empty groove 23; the disassembly and assembly mechanism 2 includes a connecting rod body 22 fixedly connected to the outer side of the pusher claw 13 and a fixed round block 20 fixedly embedded in the wear-resistant sleeve 10, the fixed round block 20 is provided with a through groove 21 for the connecting rod body 22 to pass through, the connecting rod body 22 is provided with an empty groove 23, the inner side wall of the empty groove 23 is fixedly connected to a limit spring 24, one end of the limit spring 24 is fixedly connected to a movable clamping block 25 for clamping the fixed round block 20, and the movable clamping block 25 is movably connected to the inside of the empty groove 23.

[0028] In one embodiment, in order to improve the service strength of the fork body 1, the fork body 1 is a forged integral structure.

[0029] In one embodiment, in order to facilitate the connection between the fork body 1 and the fork shaft, a connecting portion 11 is fixedly provided on the top of the fork body 1 , and a connecting hole 12 is opened inside the connecting portion 11 .

[0030] In one embodiment, in order to increase the service life of the wear-resistant sleeve 10 , the wear-resistant sleeve 10 is a polytetrafluoroethylene wear-resistant sleeve 10 .

[0031] In one embodiment, in order to keep the movable clamping block 25 stable during movement, thereby improving the clamping force of the movable clamping block 25, a sliding groove 27 is opened on the inner wall of the empty slot 23, and a slider 26 is slidably connected to the inner wall of the sliding groove 27, and one side of the slider 26 is fixedly connected to the movable clamping block 25; in order to further improve the stability of the movable clamping block 25 during movement, the number of the sliding groove 27 and the slider 26 are both two, and the two sliding grooves 27 are symmetrically arranged on the inner wall of the empty slot 23, and the two sliders 26 are symmetrically arranged on both sides of the movable clamping block 25.

[0032] During the operation of the utility model, when the wear-resistant sleeve 10 is installed, the wear-resistant sleeve 10 can be firstly pressed against the outer side of the pusher claw 13, so that the connecting rod body 22 can penetrate the through slot 21 of the fixed round block 20, and then the movable clamping block 25 can be pushed into the empty slot 23 under the squeezing action of the inner wall of the through slot 21, and when the movable clamping block 25 extends out of the through slot 21, it can be moved out of the empty slot 23 under the resetting action of the limit spring 24 to press against the fixed round block 20, so that the wear-resistant sleeve 10 can be quickly fixed on the pusher claw 13, and the wear-resistant sleeve 10 can also be quickly disassembled by pressing the movable clamping block 25 into the empty slot 23.

[0033] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A third and fourth gear shift fork for an automobile, characterized in that: It comprises a shift fork body (1) and a disassembly and assembly mechanism (2); Both ends of the shift fork body (1) are fixedly provided with shift claws (13), and the shift claws (13) are sleeved with wear-resistant sleeves (10); The disassembly and assembly mechanism (2) comprises a connecting rod body (22) fixedly connected to the outside of the pusher claw (13) and a fixed round block (20) fixedly embedded in the wear-resistant sleeve (10); a through groove (21) is provided inside the fixed round block (20) for the connecting rod body (22) to pass through; a hollow groove (23) is provided inside the connecting rod body (22); a limit spring (24) is fixedly connected to the inner side wall of the hollow groove (23); one end of the limit spring (24) is fixedly connected to a movable clamping block (25) for clamping the fixed round block (20); and the movable clamping block (25) is movably connected inside the hollow groove (23).

2. The third and fourth gear shift fork of an automobile according to claim 1, characterized in that: The shift fork body (1) is a forged integral structure.

3. The third and fourth gear shift fork of an automobile according to claim 2, characterized in that: A connecting portion (11) is fixedly provided on the top of the fork body (1), and a connecting hole (12) is provided inside the connecting portion (11).

4. The third and fourth gear shift fork for an automobile according to claim 1, characterized in that: The wear-resistant sleeve (10) is a polytetrafluoroethylene wear-resistant sleeve.

5. The third and fourth gear shift fork for an automobile according to claim 1, characterized in that: The inner side wall of the empty slot (23) is provided with a sliding slot (27), the inner side wall of the sliding slot (27) is slidably connected with a sliding block (26), and one side of the sliding block (26) is fixedly connected to a movable clamping block (25).

6. The third and fourth gear shift fork of an automobile according to claim 5, characterized in that: The number of the slide grooves (27) and the number of the sliders (26) are both two. The two slide grooves (27) are symmetrically arranged on the inner side wall of the empty groove (23), and the two sliders (26) are symmetrically arranged on both sides of the movable clamping block (25).

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