Shifting fork

Abstract

The utility model belongs to the technical field of shifting forks, and particularly relates to a gear shifting fork which comprises an arm body, shifting fork arms are integrally formed on the two sides of the arm body, installation grooves are formed in the opposite faces of the two shifting fork arms, installation blocks are fixedly arranged on the installation grooves, abrasion-resistant blocks are connected to the installation blocks, a gear device is clamped through the abrasion-resistant blocks, abrasion resistance is good, and the service life of the gear shifting fork is prolonged. The mounting block is detachably connected into the mounting groove through the fixing structure, when the wear-resisting block is damaged, the wear-resisting block can be conveniently replaced and is easy and convenient to disassemble, the shifting fork shaft base is fixedly connected with the upper end of the arm body, the shaft hole is formed in the shifting fork shaft base, the shifting fork shaft base is connected with the gear shift lever through the shaft hole, and therefore control over gears is achieved; and the shifting fork body and the gear device can be better lubricated.

Description

Technical Field

[0001] The utility model belongs to the technical field of shift forks, and particularly relates to a shift fork. Background Art

[0002] The shift fork is an important component in an automobile transmission. Its main function is to control the movement of the shift lever, causing the shift fork shaft below it to displace, so that the corresponding shift fork can move the gear to engage with different output shafts, achieving the purpose of changing the output speed.

[0003] In the existing technology, since the shift fork needs to continuously rub against the gear, in order to avoid rigid friction, wear-resistant plates are installed on the shift fork for buffering. However, no matter what material the wear-resistant plate is made of, it will show serious wear after long-term use. Therefore, it needs to be frequently replaced. Most wear-resistant plates are fixed by bolts, and long-term disassembly is likely to cause wear of the threads, resulting in poor performance of the wear-resistant plate and inconvenient installation. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a shift fork to solve the problems raised in the above background art in view of the existing technical problems.

[0005] In view of this, the utility model provides a shift fork, including an arm body;

[0006] Shift fork arms are fixedly arranged on both sides of the arm body. Installation grooves are formed on the opposite surfaces of the two shift fork arms. Installation blocks are fixedly arranged on the installation grooves, and wear-resistant blocks are connected to the installation blocks.

[0007] A shift fork shaft seat is fixedly connected to the upper end of the arm body, and a shaft hole is formed on the shift fork shaft seat.

[0008] A fixing structure, and the installation block is detachably connected to the installation groove through the fixing structure;

[0009] A lubricating structure is arranged on both sides of the arm body.

[0010] In the above technical solution, further, the fixing structure includes:

[0011] Compression grooves are formed on both sides of the installation block;

[0012] Limit plates are arranged in the compression grooves;

[0013] Grooves are formed on the inner side wall of the installation groove, and one end extends to the installation block and communicates with the compression groove;

[0014] Sliders are fixedly connected to the limit plates and are slidably connected to the grooves;

[0015] The first spring, one end of the first spring is fixedly connected to the end of the compression groove away from the groove, and the other end is fixedly connected to the limiting plate.

[0016] In the above technical solution, further, the fixing structure further includes:

[0017] The limiting groove is opened on the outer side surface of the fork arm;

[0018] The sliding groove is opened inside the fork arm, and one end communicates with the groove, and the other end communicates with the limiting groove;

[0019] The compression rod is arranged in the groove, the sliding groove and the limiting groove, and is slidably connected to the sliding groove;

[0020] The pressing plate is fixedly connected to the compression rod, and the pressing plate is slidably connected to the limiting groove;

[0021] The second spring is arranged in the limiting groove, and one end abuts against the bottom of the limiting groove, and the other end abuts against one end of the pressing plate close to the sliding groove.

[0022] In the above technical solution, further, it further includes:

[0023] The wedge opening, the wedge opening is arranged on the side wall of the mounting block, and the number of the wedge openings is multiple;

[0024] The wedge buckle, the wedge buckle is fixedly connected to the left side wall of the wear-resistant block, the number of the wedge buckles is multiple, the wedge buckles are all located inside the wedge opening, and the wear-resistant block and the mounting block are clamped through the wedge buckles.

[0025] In the above technical solution, further, the lubrication structure includes:

[0026] The through hole is located on the arm body;

[0027] The outer guiding protrusion, the outer guiding protrusion is in a downwardly curved semicircular shape, and is located at the outer end of the arm body and below the through hole;

[0028] The inner guiding protrusion, the inner guiding protrusion is triangular, and is located at the inner end of the arm body and the lower end of the through hole.

[0029] In the above technical solution, further, a pressing block is arranged at the end of the compression rod away from the slider.

[0030] In the above technical solution, further, the wear-resistant block is made of wear-resistant rubber.

[0031] In the above technical solution, further, the arm body, the fork arm and the fork shaft seat are all coated with an anti-rust layer.

[0032] The beneficial effects of the present utility model are:

[0033] 1. Installation grooves are provided on the opposite sides of the two fork arms. Installation blocks are fixedly arranged on the installation grooves, and wear-resistant blocks are connected to the installation blocks. The gear device is clamped by the wear-resistant blocks, and the wear resistance is good.

[0034] 2. The installation block is detachably connected to the installation groove through a fixing structure. When the wear-resistant block is damaged, the wear-resistant block can be conveniently replaced, and the disassembly is simple.

[0035] 3. Antirust layers are coated on the outer parts of the arm body, the fork arms and the fork shaft seats. The primer of the antirust layer is iron red epoxy primer, and the topcoat is epoxy enamel. The antirust paint can effectively prevent the surfaces of the arm body, the fork arms and the fork shaft seats from contacting the external environment, and has good anti-corrosion and rust prevention effects. Description of the Drawings

[0036] Figure 1 is the structural schematic diagram of the present utility model;

[0037] Figure 2 is the structural schematic diagram of another perspective of the present utility model;

[0038] Figure 3 is the structural schematic diagram of the fixing structure of the present utility model;

[0039] Figure 4 is the present utility model Figure 3 The partial enlarged view at A in;

[0040] Figure 5 is the structural schematic diagram of the installation block of the present utility model;

[0041] The marks in the figure are shown as: 1 - arm body, 2 - fork arm, 3 - fork shaft seat, 4 - shaft hole, 5 - compression groove, 6 - limiting plate, 7 - groove, 8 - slider, 9 - first spring, 10 - limiting groove, 11 - sliding groove, 12 - compression rod, 13 - pressing plate, 14 - second spring, 15 - installation groove, 16 - installation block, 17 - wear-resistant block, 18 - wedge opening, 19 - wedge buckle, 20 - through hole, 21 - outer guiding protrusion, 22 - inner guiding protrusion, 23 - pressing block. Detailed Embodiments

[0042] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by the present application.

[0043] Embodiment 1:

[0044] This embodiment provides a shift fork, including:

[0045] Arm body 1;

[0046] Fork arms 2 are fixedly arranged on both sides of the arm body 1. Installation grooves 15 are formed on the opposite sides of the two fork arms 2. Installation blocks 16 are fixedly arranged on the installation grooves 15. Wear-resistant blocks 17 are connected to the installation blocks 16;

[0047] Fork shaft seat 3 is fixedly connected to the upper end of the arm body 1. A shaft hole 4 is formed on the fork shaft seat 3;

[0048] Fixing structure. The installation block 16 is detachably connected to the installation groove 15 through the fixing structure;

[0049] Lubrication structure is arranged on both sides of the arm body 1.

[0050] It can be seen from this embodiment that fork arms 2 are integrally formed on both sides of the arm body 1. Installation grooves 15 are formed on the opposite sides of the two fork arms 2. Installation blocks 16 are fixedly arranged on the installation grooves 15. Wear-resistant blocks 17 are connected to the installation blocks 16. The gear device is clamped by the wear-resistant blocks 17, and the wear resistance is good. The installation block 16 is detachably connected to the installation groove 15 through the fixing structure. When the wear-resistant block 17 is damaged, the wear-resistant block 17 can be conveniently replaced, and the disassembly is simple. The fork shaft seat 3 is fixedly connected to the upper end of the arm body 1. A shaft hole 4 is formed on the fork shaft seat 3. It is connected to the shift lever through the shaft hole 4, so as to realize the control of the gear position. The lubrication structure is arranged on both sides of the arm body 1, which can better lubricate the fork body and the gear device.

[0051] Embodiment 2:

[0052] This embodiment provides a shift fork. In addition to including the technical solutions of the above embodiment, it also has the following technical features.

[0053] The fixing structure includes:

[0054] Compression grooves 5 are formed on both sides of the installation block 16;

[0055] Limit plates 6 are arranged in the compression grooves 5;

[0056] Grooves 7 are formed on the inner side wall of the installation groove 15 and extend to the installation block 16 at one end to communicate with the compression grooves 5;

[0057] Sliders 8 are fixedly connected to the limit plates 6 and are slidably connected to the grooves 7;

[0058] A first spring 9 has one end fixedly connected to the end of the compression groove 5 away from the groove 7 and the other end fixedly connected to the limit plate 6.

[0059] It can be seen from this embodiment that the fixing structure includes a compression groove 5. The compression grooves 5 are formed on both sides of the mounting block 16. The limiting plate 6 is arranged in the compression groove 5. The groove 7 is formed on the inner side wall of the mounting groove 15 and extends to the mounting block 16 at one end to communicate with the compression groove 5. The slider 8 is fixedly connected to the limiting plate 6 and slidably connected to the groove 7. One end of the first spring 9 is fixedly connected to the end of the compression groove 5 away from the groove 7, and the other end is fixedly connected to the limiting plate 6. The slider 8 is limited to the groove 7 by the restoring force of the first spring 9, achieving the effect of firmly connecting the structure between the fork arm 2 and the mounting block 16.

[0060] Embodiment 3:

[0061] This embodiment provides a shift fork. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0062] The fixing structure further includes:

[0063] A limiting groove 10 is formed on the outer side surface of the fork arm 2;

[0064] A sliding groove 11 is formed in the fork arm 2, and one end communicates with the groove 7 and the other end communicates with the limiting groove 10;

[0065] A compression rod 12 is arranged in the groove 7, the sliding groove 11, and the limiting groove 10 and is slidably connected to the sliding groove 11;

[0066] A pressing plate 13 is fixedly connected to the compression rod 12 and is slidably connected to the limiting groove 10;

[0067] A second spring 14 is arranged in the limiting groove 10, and one end abuts against the bottom of the limiting groove 10 and the other end abuts against one end of the pressing plate 13 close to the sliding groove 11.

[0068] It can be seen from this embodiment that the fixing structure further includes a limiting groove 10. The limiting groove 10 is opened on the outer side surface of the fork arm 2. A sliding groove 11 is opened inside the fork arm 2, and one end of the sliding groove 11 communicates with the groove 7, and the other end communicates with the limiting groove 10. A compression rod 12 is arranged in the groove 7, the sliding groove 11 and the limiting groove 10, and is slidably connected with the sliding groove 11. A pressing plate 13 is fixedly connected to the compression rod 12, and the pressing plate 13 is slidably connected with the limiting groove 10. A second spring 14 is arranged in the limiting groove 10, and one end of the second spring 14 abuts against the bottom of the limiting groove 10, and the other end abuts against one end of the pressing plate 13 close to the sliding groove 11. When installing the mounting block 16, first press the slider 8 and the limiting plate 6 inward, then insert the mounting block 16 into the mounting groove 15, and pair the slider 8 into the groove 7. The fixing connection between the mounting block 16 and the fork arm 2 is realized through the restoring force of the first spring 9. When the wear-resistant block 17 is severely worn and needs to be disassembled, press the compression rod 12 to push the slider 8 out of the groove 7, then take out the mounting block 16, and replace the wear-resistant block 17 on one side of the mounting block 16. At this time, the compression rod 12 also returns to its original position due to the restoring force of the second spring 14.

[0069] Embodiment 4:

[0070] This embodiment provides a shift fork. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0071] It further includes:

[0072] A wedge opening 18. The wedge opening 18 is arranged on the side wall of the mounting block 16, and the number of the wedge openings 18 is multiple;

[0073] A wedge buckle 19. The wedge buckle 19 is fixedly connected to the left side wall of the wear-resistant block 17, and the number of the wedge buckles 19 is multiple. The wedge buckles 19 are all located inside the wedge openings 18, and the wear-resistant block 17 and the mounting block 16 are clamped through the wedge buckles 19.

[0074] It can be seen from this embodiment that the mounting block 16 and the wear-resistant block 17 are clamped through the wedge buckles 19, and the connection is stable.

[0075] Embodiment 5:

[0076] This embodiment provides a shift fork. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0077] The lubrication structure includes:

[0078] A through hole 20. The through hole 20 is located on the arm body 1;

[0079] An outer guiding protrusion 21. The outer guiding protrusion 21 is in a downwardly curved semi-circular shape, and is located at the outer end of the arm body 1 and below the through hole 20;

[0080] The inner guiding protrusion 22 is triangular and is located at the inner end of the arm body 1 and the lower end of the through hole 20.

[0081] As can be seen from this embodiment, since the shift fork and the gear device cooperate with each other and the interior is covered, it is difficult to ensure the lubricity of the device. Therefore, the structure is also designed with a lubrication structure. The through hole 20 is located on the arm body 1, and the through hole 20 can enable lubricating oil to flow into the interior of the device from here. The outer guiding protrusion 21 is in a semi-circular shape bent downward and is located at the outer end of the arm body 1. The outer guiding protrusion 21 is located below the through hole 4. The design of the outer guiding protrusion 21 is mainly to reliably guide and collect the lubricating oil attached to the outer surface of the arm body 1 so that the lubricating oil can be effectively collected in the through hole 20. The inner guiding protrusion 22 is triangular and is located at the inner end of the arm body 1 and near the lower end of the through hole 20. The setting of the inner guiding protrusion 22 ensures that the lubricating oil does not flow downward along the inner surface of the arm body 1 and can guide the lubricating oil to flow upward to the gear device, and can effectively fix the amount of lubricating oil of the gear device.

[0082] Embodiment 6:

[0083] This embodiment provides a shift fork. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0084] A pressing block 23 is provided at one end of the compression rod 12 away from the slider 8.

[0085] As can be seen from this embodiment, the setting of the pressing block 23 increases the force-bearing area, making it more labor-saving to squeeze the compression rod 12 and facilitating disassembly.

[0086] Embodiment 7:

[0087] This embodiment provides a shift fork. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0088] The wear-resistant block 17 is made of wear-resistant rubber.

[0089] As can be seen from this embodiment, the wear-resistant block 17 is made of wear-resistant rubber to improve wear resistance.

[0090] Embodiment 8:

[0091] This embodiment provides a shift fork. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0092] The arm body 1, the shift fork arm 2, and the shift fork shaft seat 3 are all coated with an anti-rust layer.

[0093] As can be seen from this embodiment, an anti-rust layer is coated on the outside of the arm body 1, the fork arm 2 and the fork shaft seat 3. The primer of the anti-rust layer is iron red epoxy primer, and the topcoat is epoxy enamel. The anti-rust paint can effectively prevent the surfaces of the arm body 1, the fork arm 2 and the fork shaft seat 3 from contacting the external environment, and has good anti-corrosion and anti-rust effects.

[0094] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. A shift fork, characterized in that, Comprising: Arm body (1); Fork arms (2), the fork arms (2) are fixedly arranged on both sides of the arm body (1), mounting grooves (15) are formed on the opposite surfaces of the two fork arms (2), mounting blocks (16) are fixedly arranged on the mounting grooves (15), and wear-resistant blocks (17) are connected to the mounting blocks (16); Fork shaft seat (3), the fork shaft seat (3) is fixedly connected to the upper end of the arm body (1), and a shaft hole (4) is formed on the fork shaft seat (3); Fixing structure, the mounting block (16) is detachably connected to the mounting groove (15) through the fixing structure; Lubricating structure, the lubricating structure is arranged on both sides of the arm body (1).

2. The shift fork according to claim 1, wherein, The fixing structure includes: Compression grooves (5), the compression grooves (5) are formed on both sides of the mounting block (16); Limit plates (6), the limit plates (6) are arranged in the compression grooves (5); Grooves (7), the grooves (7) are formed on the inner side wall of the mounting groove (15), and one end extends to the mounting block (16) and communicates with the compression groove (5); Sliders (8), the sliders (8) are fixedly connected to the limit plates (6) and are slidably connected to the grooves (7); First springs (9), one end of each first spring (9) is fixedly connected to the end of the compression groove (5) far from the groove (7), and the other end is fixedly connected to the limit plate (6).

3. The shift fork according to claim 2, characterized in that, The fixing structure further includes: Limit grooves (10), the limit grooves (10) are formed on the outer side surface of the fork arm (2); Sliding grooves (11), the sliding grooves (11) are formed in the fork arm (2), and one end communicates with the groove (7), and the other end communicates with the limit groove (10); Compression rods (12), the compression rods (12) are arranged in the groove (7), the sliding groove (11), and the limit groove (10), and are slidably connected to the sliding groove (11); Pressure plates (13), the pressure plates (13) are fixedly connected to the compression rods (12), and the pressure plates (13) are slidably connected to the limit grooves (10); Second springs (14), the second springs (14) are arranged in the limit grooves (10), and one end abuts against the bottom of the limit groove (10), and the other end abuts against the end of the pressure plate (13) close to the sliding groove (11).

4. A shift fork according to claim 3, characterized in that, It further includes: Wedge openings (18), wedge openings (18) are arranged on the side wall of the mounting block (16), and the number of the wedge openings (18) is multiple; Wedge fasteners (19), wedge fasteners (19) are fixedly connected to the left side wall of the wear-resistant block (17), the number of the wedge fasteners (19) is multiple, the wedge fasteners (19) are all located inside the wedge openings (18), and the wear-resistant block (17) is clamped to the mounting block (16) through the wedge fasteners (19).

5. A shift fork according to claim 4, characterized in that, The lubricating structure includes: Through holes (20), the through holes (20) are located on the arm body (1); Outer guiding protrusions (21), the outer guiding protrusions (21) are in a downwardly curved semi-circular shape, and are located at the outer end of the arm body (1) and below the through hole (20); Inner guiding protrusions (22), the inner guiding protrusions (22) are triangular in shape, and are located at the inner end of the arm body (1) and the lower end of the through hole (20).

6. A shift fork according to claim 5, characterized in that, One end of the compression rod (12) away from the slider (8) is provided with a pressing block (23).

7. A shift fork according to claim 6, characterized in that, The wear-resistant block (17) is made of wear-resistant rubber.

8. A shift fork according to claim 7, characterized in that, The outer parts of the arm body (1), the fork arm (2) and the fork shaft seat (3) are all coated with an anti-rust layer.

Images