High-wear-resistance shifting fork structure

Abstract

The utility model belongs to the technical field of shifting fork structures, and discloses a high-abrasion-resistance shifting fork structure which comprises a shifting fork body, an installation portion is arranged at the top end of the shifting fork body, and the installation portion is provided with a first shifting fork shaft installation hole and a shaft sleeve matched with the inner wall of the first shifting fork shaft installation hole. Fork feet are symmetrically arranged at the top end of the shifting fork body towards the bottom, each fork foot is provided with a second mounting hole, a wear-resistant sliding block is mounted in each second mounting hole and comprises a block body and a mounting part, each mounting part penetrates through the corresponding second mounting hole and extends out of the corresponding fork foot, and each wear-resistant sliding block is fixed to the inner wall of the corresponding fork foot through a limiting part. By adopting a modular design concept, the pin sliding block can be flexibly configured according to different working conditions and use environments. By selecting the pin sliding blocks of different materials and sizes, various complex application scenes can be effectively dealt with, so that the performance is optimized, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of shift fork structures, and in particular relates to a high-wear-resistant shift fork structure. Background Art

[0002] The wear-resistant shift fork structure is a key component in automotive transmissions, designed to improve the fork's wear resistance, thereby extending its service life and enhancing vehicle performance. Wear-resistant shift forks are typically made of high-strength steel with a hardened surface to increase hardness and wear resistance. This material selection ensures that the fork maintains stable performance over long-term use. Wear-resistant shift forks have diverse structural designs to meet the needs of different machines. Some designs include grooves, limit block wear layers, etc. on the fork body to further enhance wear resistance. In addition, there are designs that use lightweight materials and advanced lubrication technology to reduce energy loss and improve overall efficiency.

[0003] The wear-resistant fork structure adopts special materials and processes to significantly improve the wear resistance of the fork and extend its service life. Due to the diverse designs of the fork, it needs to meet the needs of different machines and has strong adaptability.

[0004] After searching, CN201720682572.1 discloses a wear-resistant shift fork, including a shift fork body, a shift fork head provided on the top of the shift fork body, a mounting hole provided on the shift fork head, a pair of arc-shaped shift fork arms provided at one end of the shift fork head, a wear-resistant bushing provided in the mounting hole, a first wear-resistant block provided on the opposite sides of the pair of arc-shaped shift fork arms, a second wear-resistant block provided on the outer periphery of the shift fork head located between the pair of arc-shaped shift fork arms, the first wear-resistant block provided in an arc shape, the two ends of the second wear-resistant block respectively connected to the first wear-resistant block, the thickness of the first wear-resistant block and the second wear-resistant block are both less than the thickness of the pair of arc-shaped shift fork arms, and the shift fork body is made of high-silicon aluminum alloy. A wear-resistant bushing is provided in the mounting hole, and a first wear-resistant block is provided on the pair of arc-shaped shift fork arms. When the gear is frequently changed, the mounting hole and the pair of arc-shaped shift fork arms are made more wear-resistant, thereby extending the service life of the transmission shift fork.

[0005] CN202122236681.X discloses a commercial vehicle speed shift C-shaped fork, including a C-shaped fork body, a fork foot is provided on the inner side of the C-shaped fork body, and the fork foot consists of a supporting portion and a wear-resistant layer; a mounting block is provided on the C-shaped fork body, and a shift fork shaft mounting hole is opened on the mounting block; pin shaft mounting holes are opened on both sides of the mounting block corresponding to the shift fork shaft mounting hole; an supporting portion is provided on the inner side wall of the fork foot, and a wear-resistant layer is provided on the supporting portion; this novel structure is simple and easy to use. Through the cooperation of the supporting portion and the wear-resistant layer, the supporting portion is not easily worn during use, thereby improving the service life of the speed shift fork, and the C-shaped fork body is an integrated forging structure with good rigidity, no air holes and long service life. Moreover, the shift fork is a C-shaped fork structure, and each corner is transitioned through a rounded corner to avoid stress concentration, thereby further improving the service life of the speed shift fork.

[0006] The above-mentioned shift fork structure is improved structurally to increase wear resistance, but cannot be applied to products with different structures.

[0007] In summary, it is very necessary to invent a shift fork that can be applied to various complex application scenarios and can be flexibly configured according to different working conditions and usage environments. Utility Model Content

[0008] Addressing the shortcomings of existing technologies, this utility model discloses a highly wear-resistant shift fork structure. By adopting a modular design concept, the pin slider can be flexibly configured to suit different operating conditions and usage environments. By selecting pin sliders of different materials and sizes, it can effectively adapt to various complex application scenarios, thereby optimizing performance and extending service life. This design not only improves the system's adaptability and reliability, but also facilitates maintenance and upgrades, providing users with a more efficient and economical solution.

[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0010] Disclosed is a high-wear-resistant shift fork structure, comprising a fork body, a mounting portion provided at the top end of the fork body, the mounting portion being provided with a first fork shaft mounting hole and a shaft sleeve cooperating with the inner wall of the first fork shaft mounting hole; fork feet symmetrically arranged from the top end toward the bottom end of the fork body, the fork feet being provided with a second mounting hole, a wear-resistant slider being installed inside the second mounting hole, the wear-resistant slider comprising a block body and a mounting portion, the mounting portion extending through the second mounting hole to the outside of the fork foot, and the wear-resistant slider being fixed to the inner wall of the fork foot by a limiting portion.

[0011] The highly wear-resistant shift fork structure of this utility model significantly improves its overall wear resistance by combining the fork with wear-resistant materials, thereby extending the service life of the transmission. This approach not only enhances component durability but also helps improve the reliability and efficiency of the entire transmission system. Furthermore, the wear-resistant slider is designed as a detachable structure, allowing the structure of the wear-resistant slider to be adjusted according to different operating conditions, thus enhancing versatility.

[0012] Furthermore, the block body comprises a relative plane and a sidewall surface perpendicular to the relative plane, which surrounds the edge of the relative plane. The sidewall surface on the side away from the relative plane is connected to the mounting portion via an inclined section, giving the entire block body a trumpet shape that is small on the outside and large on the inside. The design of this wear-resistant slider can effectively realize the installation of the wear-resistant slider on the fork leg. The entire structure takes into account the stress conditions of the fork structure during use. The trumpet shape of the block body increases the contact surface area during use, facilitates installation, and is convenient for disassembly and replacement.

[0013] Furthermore, the mounting portion is cylindrical, with a height greater than the thickness of the second mounting hole; and an outer diameter smaller than the inner diameter of the second mounting hole. This design effectively integrates the wear-resistant slider and the fork leg, ensuring the reliability of the entire structure.

[0014] Furthermore, the mounting portion is provided with a third mounting hole on a side away from the block body, with the central axis of the third mounting hole being perpendicular to the central axis of the second mounting hole. This design allows the stopper to easily adhere to the outer wall surface of the fork leg when installed in the third mounting hole, making the installation of the wear-resistant slider more stable.

[0015] Furthermore, the fork legs are arc-shaped, giving the entire fork body an "earphone-like" interior. This fork structure can be a one-piece forged structure, offering advantages such as good rigidity, no pores, and long life. The fork body's interior wall is a C-shaped fork structure, with rounded corners to avoid stress concentration and further extend the life of the shift fork.

[0016] Furthermore, the limiting portion is a limiting pin, which is inserted and pulled out of the mounting hole three to fix the wear-resistant slider on the fork leg.

[0017] Furthermore, the top end of the fork body includes a fork shaft mounting hole 1 provided between the outer edge ribs on both sides of the outer edge ribs.

[0018] Furthermore, the included angle of the outer extension line between the outer edge ribs on both sides is 45°-60°.

[0019] Furthermore, a reinforcing lining plate is provided between the outer edge ribs on both sides, and the reinforcing lining plate forms an arc-shaped structure.

[0020] Furthermore, a reinforcing rib is provided at the center of the reinforcing lining plate.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] The highly wear-resistant shift fork structure disclosed in this utility model utilizes a modular design concept, allowing for flexible configuration of the pin sliders to suit varying operating conditions and usage environments. By selecting pin sliders of varying materials and sizes, it can effectively address a variety of complex application scenarios, optimizing performance and extending service life. This design not only improves system adaptability and reliability, but also facilitates maintenance and upgrades, providing users with a more efficient and economical solution.

[0023] The design of this wear-resistant slider can effectively realize the installation of the wear-resistant slider on the fork foot, and the entire structure takes into account the stress conditions of the fork structure during use, and the block body is set to a trumpet shape, which increases the contact surface area during use and is conducive to installation and convenient disassembly and replacement.

[0024] The shift fork structure can adopt an integrated forging structure, which has the advantages of good rigidity, no air holes and long service life. The inner wall of the fork body is a C-shaped fork structure, and each corner is transitioned through a rounded corner to avoid stress concentration and further increase the service life of the speed shift fork. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the high wear-resistant shift fork structure of the utility model.

[0026] Figure 2 Based Figure 1 A side view of the highly wear-resistant shift fork structure.

[0027] Figure 3 for Figure 2 Schematic diagram of the internal structure of the high wear-resistant shift fork structure.

[0028] Figure 4 The utility model discloses a wear-resistant sliding block of the high-wear-resistant shift fork structure.

[0029] Among them, 1. Fork body, 11. Outer edge rib, 12. Reinforced lining, 13. Reinforced rib, 2. Limiting part, 3. Wear-resistant slider, 31. Block body, 311. Relative plane, 312. Side wall, 313. Inclined section, 32. Mounting part, 321. Mounting hole three, 4. Bushing, 5. Fork shaft mounting hole one, 6. Fork foot, 7. Mounting hole two. DETAILED DESCRIPTION

[0030] In order to facilitate the explanation and understanding of the present invention, the following Figure 1-4 The embodiments of the present utility model are described in detail. Example 1

[0031] like Figure 1-Figure 4 As shown, the highly wear-resistant shift fork structure of this embodiment utilizes a modular design concept, allowing for flexible configuration of the pin slider according to different working conditions and usage environments. It comprises a shift fork body 1, with a mounting portion disposed at the top thereof. The mounting portion is provided with a shift fork shaft mounting hole 1 5 and a sleeve 4 that engages with the inner wall of the shift fork shaft mounting hole 1 5. In this embodiment, the sleeve is a self-lubricating sleeve.

[0032] The fork legs 6 are symmetrically arranged from the top to the bottom of the fork body 1. The fork legs of this embodiment improve the smoothness of shifting. At the same time, the symmetrical arrangement of the fork legs with equal strength prevents the fork legs from being deformed inconsistently due to stress and causing the gear sleeve to tilt.

[0033] Specifically, the fork leg 6 is provided with a second mounting hole 7, within which a wear-resistant slider 3 is mounted. The wear-resistant slider 3 comprises a block body 31 and a mounting portion 32. The mounting portion 32 extends through the second mounting hole 7 and extends outside the fork leg 6. The wear-resistant slider 3 is secured to the inner wall of the fork leg 6 by a stopper 2. The fork leg 6 is arc-shaped, giving the inner wall of the entire fork body 1 a "headphone-like" appearance. The fork can be constructed as a one-piece forging structure, offering advantages such as high rigidity, a lack of pores, and a long lifespan. The inner wall of the fork body is a C-shaped fork structure, with rounded corners to avoid stress concentration and further extend the service life of the shift fork.

[0034] The highly wear-resistant shift fork structure of this utility model significantly improves its overall wear resistance by combining the fork with wear-resistant materials, thereby extending the service life of the transmission. This approach not only enhances component durability but also helps improve the reliability and efficiency of the entire transmission system. Furthermore, the wear-resistant slider is designed as a detachable structure, allowing the structure of the wear-resistant slider to be adjusted according to different operating conditions, thus enhancing versatility.

[0035] The block body 31 of the wear-resistant slider 3 in this embodiment comprises a relative flat surface 311 and a sidewall surface 312 perpendicular to the relative flat surface. The sidewall surface 312 on the side away from the relative flat surface 311 is connected to the mounting portion 32 via an inclined surface section 313, giving the entire block body 31 a trumpet-like shape that is small on the outside and large on the inside. The design of this wear-resistant slider effectively enables the wear-resistant slider to be installed on the fork leg. Furthermore, the entire structure takes into account the stress conditions of the fork structure during use. The trumpet-like shape of the block body increases the contact surface area during use, facilitates installation, and facilitates disassembly and replacement.

[0036] The mounting portion 32 is cylindrical, with a height greater than the thickness of the second mounting hole 7 and an outer diameter smaller than the inner diameter of the second mounting hole 7. This design effectively integrates the wear-resistant slider and the fork leg, ensuring the reliability of the entire structure. Furthermore, a third mounting hole 321 is provided on the side of the mounting portion 32 facing away from the block body 31, with the central axis of the third mounting hole 321 perpendicular to the central axis of the second mounting hole 7. This design allows the stopper to easily contact the outer wall of the fork leg when installed in the third mounting hole 321, making the installation of the wear-resistant slider more stable.

[0037] The limiting portion 2 is a limiting pin. The limiting pin in this embodiment is inserted and removed from the mounting hole 321 to fix the wear-resistant slider 3 on the fork leg 6.

[0038] To enhance the stability of the entire fork structure, the fork body 1 includes an outer rib 11 on either side of the top. A fork shaft mounting hole 5 is located between these two ribs. The angle between the outer extensions of these ribs is 45°-60°. This design reduces stress concentration and increases component life. A reinforcing liner 12 is located between these ribs, forming an arc-shaped structure. A reinforcing rib 13 is located in the center of these ribs.

[0039] The highly wear-resistant shift fork structure in this embodiment utilizes a combination of a shift fork and wear-resistant material. By designing the wear-resistant slider as a detachable structure, the structure of the wear-resistant slider can be adjusted to suit different operating conditions, resulting in high versatility. This significantly improves the overall wear resistance of the shift fork, thereby extending the service life of the transmission. This approach not only enhances component durability but also helps improve the reliability and efficiency of the entire transmission system.

[0040] The above is only an embodiment of the present invention. The present invention is not limited to the field involved in this implementation case. Common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the content of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A high wear-resistant shift fork structure, characterized in that: The invention comprises a shift fork body (1), a mounting portion is provided at the top of the shift fork body (1), the mounting portion is provided with a shift fork shaft mounting hole (5) and a shaft sleeve (4) matched with the inner wall of the shift fork shaft mounting hole (5); a fork foot (6) is symmetrically arranged from the top to the bottom of the shift fork body (1), the fork foot (6) is provided with a mounting hole (7), a wear-resistant slider (3) is installed inside the mounting hole (7), the wear-resistant slider (3) comprises a block body (31) and a mounting portion (32), the mounting portion (32) passes through the mounting hole (7) and extends outside the fork foot (6), and the wear-resistant slider (3) is fixed to the inner wall of the fork foot (6) by a limiting portion (2).

2. The high wear-resistant shift fork structure according to claim 1, characterized in that: The block body (31) comprises a relative plane (311) and a side wall (312) perpendicular to the relative plane. The side wall (312) on the side away from the relative plane (311) is connected to the mounting portion (32) via an inclined surface section (313), so that the entire block body (31) is shaped like a trumpet with a small outside and a large inside.

3. The high wear-resistant shift fork structure according to claim 2, characterized in that: The mounting portion (32) is cylindrical, the height of the cylinder is greater than the thickness of the second mounting hole (7), and the outer diameter of the cylinder is smaller than the inner diameter of the second mounting hole (7).

4. The high wear-resistant shift fork structure according to claim 3, characterized in that: The mounting portion (32) is provided with a third mounting hole (321) on a side away from the block body (31), and the central axis of the third mounting hole (321) is perpendicular to the central axis of the second mounting hole (7).

5. The high wear-resistant shift fork structure according to claim 4, characterized in that: The fork leg (6) is an arc-shaped structure, so that the inner wall of the entire fork body (1) is enclosed in a "headphone shape".

6. The high wear-resistant shift fork structure according to claim 5, characterized in that: The limiting portion (2) is a limiting pin, which is inserted into and removed from the third mounting hole (321) to fix the wear-resistant slider (3) on the fork leg (6).

7. The high wear-resistant shift fork structure according to any one of claims 1 to 6, characterized in that: The top end of the shift fork body (1) includes an outer edge rib (11), and a shift fork shaft mounting hole (5) is provided between the outer edge ribs (11) on both sides.

8. The high wear-resistant shift fork structure according to claim 7, characterized in that: The angle between the outer extension lines of the outer edge ribs (11) on both sides is 45°-60°.

9. The high wear-resistant shift fork structure according to claim 8, characterized in that: A reinforcement lining plate (12) is provided between the outer edge ribs (11) on both sides, and the reinforcement lining plate (12) forms an arc-shaped structure.

10. The high wear-resistant shift fork structure according to claim 9, characterized in that: A reinforcing rib (13) is provided at the center of the reinforcing lining plate (12).

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