Gearbox shifting fork for automatic transmission automobile

Abstract

The utility model discloses a gearbox shifting fork for an automatic transmission automobile, which relates to the technical field of automobile gearboxes and comprises a shifting fork seat, a pair of shifting forks are fixedly mounted in the shifting fork seat, the positions of the shifting forks can be adjusted, a limiting plate is arranged in the shifting fork seat, a plurality of groups of elastic parts are fixedly mounted between the limiting plate and the shifting fork seat, and the elastic parts are fixed on the shifting fork seat. The shifting fork is arranged between the shifting fork base and the limiting plate, limiting grooves are symmetrically formed in the shifting fork base and are in an arc shape, limiting bolts are arranged on the limiting grooves and the shifting fork, shaft holes are formed in the shifting fork base, and the shifting fork bases of different sizes can be limited through the limiting plate and the elastic piece. By arranging the arc-shaped limiting groove, the installation position of the shifting fork can be adjusted to a certain degree, and the problems that in the prior art, the distance between the shifting fork base and the shifting fork cannot be adjusted, the shifting fork base is difficult to adapt to gearboxes of different models, and the practicability of the device is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile gearboxes, in particular to a gearbox shift fork for automatic transmission automobiles. Background Art

[0002] The shift fork is one of the important components in the gearbox. It receives the power transmitted by the shift handle to push the gears in the gearbox to move on the shift fork shaft, disengage the meshing relationship of the original gear pair, establish a new gear pair meshing relationship, and operate at the required transmission speed ratio gear.

[0003] The Chinese utility model with publication number CN216200425U proposes a new energy vehicle gearbox shift fork structure: including a shift fork seat, an inner cavity is formed on the shift fork seat, a box body is fixedly mounted on the shift fork seat, two shift forks are mounted on the shift fork seat, an axial hole is formed on the shift fork seat, a connecting bolt is threadedly mounted on the box body, a connecting block is rotatably mounted on the connecting bolt, connecting rods are rotatably connected to both sides of the connecting block, and sliding plates are rotatably connected to both connecting rods.

[0004] However, the existing technology still has shortcomings:

[0005] The distance between the shift fork seat and the shift fork in the above arrangement cannot be adjusted, making it difficult to adapt to different types of gearboxes, thereby affecting the flexibility and practicality of the device. Utility Model Content

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a shift fork for an automatic transmission vehicle, which solves the problem in the prior art that the distance between the shift fork seat and the shift fork cannot be adjusted, making it difficult to adapt to different models of transmissions and affecting the practicality of the device.

[0007] To achieve the above-mentioned purpose, the present invention proposes a gearbox shift fork for an automatic transmission automobile, comprising a fork seat, a pair of shift forks fixedly installed in the fork seat, the position of the shift forks being adjustable, a limit plate being provided in the fork seat, a plurality of groups of elastic members being fixedly installed between the limit plate and the fork seat, the shift fork being provided between the fork seat and the limit plate, symmetrical limit grooves being provided on the fork seat, the limit grooves being arc-shaped, limit bolts being provided on the limit grooves and the shift fork, and an axial hole being provided on the fork seat.

[0008] As a further solution of the present invention: three reinforcing arc plates are provided in the fork seat, the second connecting rod is fixedly mounted on the reinforcing arc plates, and the reinforcing arc plates are provided in the shaft hole.

[0009] As a further solution of the present invention: a connecting bolt is threadedly installed on the fork seat, a connecting block is fixedly installed under the connecting bolt, the connecting block is fixedly connected to one of the second connecting rods, a pair of sliding grooves are provided in the fork seat, the connecting block passes through the sliding grooves and is slidably connected to the sliding grooves.

[0010] As a further solution of the present invention: a pair of sliding rods are slidably connected to the sliding groove, and the pair of sliding rods are respectively fixedly connected to a pair of second connecting rods, and a pair of transmission rods are symmetrically rotatably arranged on the second connecting rods fixedly connected to the connecting block, and the other ends of the pair of transmission rods are respectively rotatably connected to the pair of sliding rods.

[0011] As a further solution of the present invention: a first connecting rod is fixedly installed below the sliding rod, and a rubber block is fixedly installed at the end of the first connecting rod.

[0012] As a further solution of the present invention: an oil outlet pipe is fixedly installed in the shift fork, and a plurality of oil outlets are symmetrically and equidistantly arranged on the oil outlet pipe. An oil inlet pipe is fixedly installed between a pair of the oil outlet pipes, and the oil inlet pipe is arranged in the shift fork seat. An oil inlet hose is fixedly installed on the oil inlet pipe.

[0013] As a further solution of the present invention: a side hole is opened on the fork seat, and the oil inlet hose passes through the side hole and extends out of the fork seat.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. By setting a limit plate and an elastic member, the shift fork is set between the shift fork seat and the limit plate. By tightening the limit bolt, a pair of shift forks are fixedly installed in the shift fork seat. The position of shift forks of different sizes can be limited. At the same time, an arc-shaped limit groove is set on the shift fork seat to adjust the installation position of the shift fork to a certain extent.

[0016] 2. By setting three reinforcing arc plates and a pair of slide grooves, slide rods are symmetrically set on the slide grooves, a pair of reinforcing arc plates are fixedly connected to a pair of slide rods, and connecting bolts are threaded on the fork seat. The connecting bolts are fixedly connected to a reinforcing arc plate through a connecting block. A transmission rod is rotated between the connecting block and the slide rod. By rotating the connecting bolts, the three reinforcing arc plates can be driven to approach each other to achieve clamping of the fork rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural diagram of the utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the utility model after removing the fork;

[0019] Figure 3It is a partial cross-sectional view of the present utility model.

[0020] In the figure: 1. fork seat; 2. connecting bolt; 3. elastic member; 4. limit plate; 5. fork; 6. shaft hole; 7. limit groove; 8. limit bolt; 9. side hole; 10. reinforcing arc plate; 11. slide groove; 12. slide rod; 13. transmission rod; 14. oil outlet pipe; 15. oil outlet; 16. oil inlet pipe; 17. oil inlet hose; 18. first connecting rod; 19. rubber block; 20. second connecting rod; 21. connecting block. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figure 1-3 As shown, a shift fork for an automatic transmission automobile comprises a shift fork seat 1, a pair of shift forks 5 being fixedly mounted in the shift fork seat 1, the position of the shift forks 5 being adjustable, a limit plate 4 being provided in the shift fork seat 1, a plurality of elastic members 3 being fixedly mounted between the limit plate 4 and the shift fork seat 1, in this embodiment the elastic members 3 being springs, the shift forks 5 being arranged between the shift fork seat 1 and the limit plate 4, the elastic members 3 being convenient for clamping shift forks 5 of different sizes, a limit groove 7 being symmetrically provided on the shift fork seat 1, the limit groove 7 being arc-shaped, a limit bolt 8 being provided on the limit groove 7 and the shift fork 5, and the fixed installation of the pair of shift forks 5 in the shift fork seat 1 being achieved by tightening the limit bolt 8;

[0023] As an implementation method in this embodiment, a shaft hole 6 is opened on the fork seat 1, and three reinforcing arc plates 10 are arranged in the fork seat 1. A second connecting rod 20 is fixedly installed on the reinforcing arc plate 10, and the reinforcing arc plate 10 is arranged in the shaft hole 6. A connecting bolt 2 is threadedly installed on the fork seat 1, and a connecting block 21 is rotatably installed below the connecting bolt 2. The connecting block 21 is fixedly connected to a second connecting rod 20, and a pair of slide grooves 11 are provided in the fork seat 1. The connecting block 21 passes through the slide groove 11 and is slidably connected to the slide groove 11. A pair of slide rods 12 are slidably connected to the slide groove 11, and the pair of slide rods 12 are respectively fixedly connected to the pair of second connecting rods 20, and the second connecting rod 20 fixedly connected to the connecting block 21 is symmetrically rotatably provided. A pair of transmission rods 13, the other ends of the pair of transmission rods 13 are respectively rotatably connected to a pair of slide rods 12, a first connecting rod 18 is fixedly installed below the slide rod 12, and a rubber block 19 is fixedly installed at the end of the first connecting rod 18. A pair of rubber blocks 19 are symmetrically arranged in the side holes 9, and the fork seat 1 is sleeved on the fork rod through the shaft hole 6. The rotating connecting bolt 2 drives the connecting block 21 to move downward, thereby driving the reinforcing arc plate 10 fixedly connected thereto to move downward, and the downward movement of the connecting bolt 2 drives the pair of transmission rods 13 to move downward, thereby driving the pair of slide rods 12 to move toward each other. At this time, the slide rods 12 approach each other, and the mutual approach of the slide rods 12 drives the pair of reinforcing arc plates 10 to approach each other until the three reinforcing arc plates 10 realize the clamping of the fork rod;

[0024] As an implementation method in this embodiment, an oil outlet pipe 14 is fixedly installed in the shift fork 5, and a plurality of oil outlet ports 15 are symmetrically and equidistantly arranged on the oil outlet pipe 14. An oil inlet pipe 16 is fixedly installed between the pair of oil outlet pipes 14. The oil inlet pipe 16 is arranged in the shift fork seat 1, and an oil inlet hose 17 is fixedly installed on the oil inlet pipe 16. A side hole 9 is opened on the shift fork seat 1, and the oil inlet hose 17 extends out of the shift fork seat 1 through the side hole 9. Lubricating oil is input into the oil inlet pipe 16 from the oil inlet hose 17, and the lubricating oil flows to the oil outlet port 15 through the symmetrical pair of oil outlet pipes 14, and flows from the oil outlet port 15 to the shift fork 5, so that there is no need for staff to apply it.

[0025] Working principle:

[0026] When in use, the shift fork 5 is set between the shift fork seat 1 and the limit plate 4, and the fixed installation of the pair of shift forks 5 in the shift fork seat 1 is achieved by tightening the limit bolt 8. Then, the shift fork seat 1 is sleeved on the shift fork rod through the shaft hole 6, and the connecting bolt 2 is rotated to drive the connecting block 21 to move downward, thereby driving the reinforcing arc plate 10 fixedly connected thereto to move downward. The downward movement of the connecting bolt 2 drives the pair of transmission rods 13 to move downward, thereby driving the pair of sliding rods 12 to move toward each other. At this time, the sliding rods 12 approach each other, and the mutual approach of the sliding rods 12 drives the pair of reinforcing arc plates 10 to approach each other until the three reinforcing arc plates 10 achieve clamping of the shift fork rod, and at the same time drives the pair of rubber blocks 19 to achieve clamping and limiting of the oil inlet hose 17, and lubricating oil is input from the oil inlet hose 17 into the oil inlet pipe 16, and the lubricating oil flows to the oil outlet 15 through a pair of symmetrical oil outlet pipes 14, and flows from the oil outlet 15 to the shift fork 5, lubricating the shift fork 5.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A gearbox shift fork for an automatic transmission vehicle, characterized in that: The invention comprises a fork seat (1), wherein a pair of forks (5) are fixedly installed in the fork seat (1), and the position of the forks (5) is adjustable. A limiting plate (4) is provided in the fork seat (1), and a plurality of elastic members (3) are fixedly installed between the limiting plate (4) and the fork seat (1). The forks (5) are provided between the fork seat (1) and the limiting plate (4). The fork seat (1) is symmetrically provided with limiting grooves (7), and the limiting grooves (7) are arc-shaped. Limiting bolts (8) are provided on the limiting grooves (7) and the forks (5), and an axial hole (6) is provided on the fork seat (1).

2. The automatic transmission shift fork for a vehicle according to claim 1, characterized in that: Three reinforcing arc plates (10) are provided in the fork seat (1), a second connecting rod (20) is fixedly mounted on the reinforcing arc plates (10), and the reinforcing arc plates (10) are provided in the shaft hole (6).

3. The automatic transmission shift fork for a vehicle according to claim 2, characterized in that: A connecting bolt (2) is threadedly mounted on the shift fork seat (1), a connecting block (21) is rotatably mounted below the connecting bolt (2), the connecting block (21) is fixedly connected to one of the second connecting rods (20), a pair of sliding grooves (11) are provided in the shift fork seat (1), the connecting block (21) passes through the sliding grooves (11) and is slidably connected to the sliding grooves (11).

4. The automatic transmission shift fork for a vehicle according to claim 3, characterized in that: A pair of slide rods (12) are slidably connected to the slide groove (11), and the pair of slide rods (12) are fixedly connected to a pair of second connecting rods (20) respectively. A pair of transmission rods (13) are symmetrically rotatably arranged on the second connecting rod (20) fixedly connected to the connecting block (21), and the other ends of the pair of transmission rods (13) are rotatably connected to the pair of slide rods (12) respectively.

5. The automatic transmission shift fork for a vehicle according to claim 4, characterized in that: A first connecting rod (18) is fixedly installed below the sliding rod (12), and a rubber block (19) is fixedly installed at the end of the first connecting rod (18).

6. The automatic transmission shift fork for a vehicle according to claim 1, characterized in that: An oil outlet pipe (14) is fixedly installed in the shift fork (5), and a plurality of oil outlets (15) are symmetrically and equidistantly arranged on the oil outlet pipe (14). An oil inlet pipe (16) is fixedly installed between a pair of the oil outlet pipes (14), and the oil inlet pipe (16) is arranged in the shift fork seat (1). An oil inlet hose (17) is fixedly installed on the oil inlet pipe (16).

7. The automatic transmission shift fork for a vehicle according to claim 6, characterized in that: A side hole (9) is provided on the fork seat (1), and the oil inlet hose (17) passes through the side hole (9) and extends out of the fork seat (1).

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