Automobile gear shifting fork assembly

Abstract

The utility model discloses an automobile gear shifting fork assembly, which relates to the technical field of automobile accessories and comprises a first main body, a second main body, rolling shafts and sponge, the second main body is arranged on one side of the first main body, the surface shape of the first main body corresponds to that of the second main body, and the rolling shafts are arranged at two ends of the bottom of the first main body. A plurality of rolling shafts capable of smoothly rotating are arranged at the bottoms of the two ends of the bottoms of the first body and the second body of the shifting fork, the shifting fork is in direct contact with a gear annular groove through the protruding rolling shafts during use, when the rolling shafts are subjected to friction force, the rolling shafts can rotate along with friction, the friction force between the shifting fork and the gear annular groove is greatly reduced, and the service life of the shifting fork is prolonged. And compared with a traditional shifting fork directly making contact with the annular groove of the gear, the friction force of the shifting fork is greatly reduced, and the service life of the shifting fork is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an automotive shift fork assembly. Background Technology

[0002] The shift fork in the gearbox changes gears by sliding and shifting a double-gear shifter. A search revealed a Chinese patent publication number CN204755893U that discloses a type of automotive shift fork. Although this shift fork provides good lubrication between the fork boss and the synchronizer sleeve during gear shifting, effectively reducing wear and noise, the fork holder still directly contacts the gear's annular groove. This results in significant sliding friction, meaning the fork still experiences considerable friction during gear rotation. Prolonged use leads to severe wear, reducing its lifespan. This wear not only affects the fork's durability but can also cause uneven gear shifting, impacting driving safety. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an automotive shift fork assembly that solves the problem mentioned in the background art, where the existing fork still directly contacts the gear annular groove, resulting in significant sliding friction.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a car gear shift fork assembly, comprising a first body, a second body, rollers, and a sponge. The second body is disposed on one side of the first body, and the surface shape of the first body corresponds to the surface shape of the second body. Rollers are disposed at both ends of the bottom of the first body, one end of the rollers is rotatably connected to the first body, and the other end of the rollers is rotatably connected to the second body. A groove is disposed on the surface of the first body, and a connecting bolt is inserted inside the groove. The other end of the connecting bolt is threadedly connected to the inside of the second body.

[0005] Preferably, the rollers are arranged in two sets, each set having five rollers from top to bottom, and the two sets of rollers are located between the first body and the second body, with the roller surface protruding from one side of the first body. When in use, the shift fork directly contacts the gear annular groove through the protruding rollers. When the rollers are subjected to friction, they will rotate due to friction, greatly reducing the friction between the shift fork and the gear annular groove.

[0006] Preferably, a sponge is provided on one side of the roller. The sponge is embedded inside the first body and the second body, and the surface of the sponge is in contact with the surface of the roller. The sponge can clean the dirt on the surface of the roller, keeping the roller surface clean.

[0007] Preferably, both the first and second bodies have an oil cavity inside, which stores lubricating oil. An oil drain hole is provided on one side of the bottom of the oil cavity, and the other end of the oil drain hole is in contact with a sponge. When the fork moves, the lubricating oil inside the oil cavity will seep out through the oil drain hole and be sucked into the sponge. Through the contact between the sponge and the roller, the lubricating oil inside the sponge can lubricate the surface of the roller.

[0008] Preferably, the top of the oil cavity is provided with an oil inlet, the internal channel of the oil inlet is arranged vertically, and the oil inlet is opened inside the first body and the second body. The oil inlet facilitates the injection of oil into the shift fork, and the vertical structure helps to prevent the internal lubricating oil from flowing out through the oil inlet.

[0009] This utility model provides an automotive gear shift fork assembly. It has the following advantages:

[0010] (1) The automotive shift fork assembly has multiple smoothly rotating rollers at the bottom of the first and second bodies of the shift fork. When in use, the shift fork directly contacts the gear annular groove through the protruding rollers. When the rollers are subjected to friction, the rollers will rotate with the friction, which greatly reduces the friction between the shift fork and the gear annular groove. Compared with the traditional shift fork that directly contacts the gear annular groove, the friction of the shift fork in this solution is greatly reduced, thereby extending the service life of the shift fork.

[0011] (2) The automobile shift fork assembly, through the oil chamber inside the shift fork, allows the lubricating oil inside the oil chamber to seep out through the oil drain hole when the shift fork is in motion, and then be sucked into the interior by the sponge. Through the contact between the sponge and the roller, the lubricating oil inside the sponge can lubricate the surface of the roller, thereby further reducing the friction between the roller and the gear annular groove and further extending the service life of the roller.

[0012] This solves the problem that existing fork carriages still use direct contact with the gear annular groove, resulting in significant sliding friction. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0015] Figure 3 This is a front view structural diagram of the present invention;

[0016] Figure 4 This is a schematic diagram of the roller structure of this utility model.

[0017] In the diagram, 1. First main body; 2. Second main body; 3. Oil inlet; 4. Roller; 5. Connecting bolt; 6. Oil cavity; 7. Oil drain hole; 8. Sponge. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: Please refer to Figure 1-4 This utility model provides a technical solution: a car gear shift fork assembly, including a first body 1, a second body 2, rollers 4, and a sponge 8. The second body 2 is disposed on one side of the first body 1, and the surface shape of the first body 1 corresponds to the surface shape of the second body 2. Rollers 4 are disposed at both ends of the bottom of the first body 1. One end of the roller 4 is rotatably connected to the first body 1, and the other end of the roller 4 is rotatably connected to the second body 2. The surface of the first body 1 is provided with a groove, and a connecting bolt 5 is inserted into the groove. The other end of the connecting bolt 5 is threadedly connected to the inside of the second body 2. Two sets of rollers 4 are provided, each set having a top-to-bottom arrangement. Five rollers 4 are provided, and two sets of rollers 4 are located between the first body 1 and the second body 2. The surface of the rollers 4 protrudes from one side of the first body 1. By providing multiple rollers 4 that can rotate smoothly at both ends of the bottom of the first body 1 and the second body 2 of the shift fork, the shift fork directly contacts the gear annular groove through the protruding rollers 4 during use. When the rollers 4 are subjected to friction, the rollers 4 will rotate with the friction, which greatly reduces the friction between the shift fork and the gear annular groove. Therefore, compared with the traditional shift fork that directly contacts the gear annular groove, the friction of the shift fork in this solution is greatly reduced, thereby extending the service life of the shift fork.

[0020] Example 2: This utility model embodiment provides a technical solution: a car shift fork assembly, wherein a sponge 8 is provided on one side of the roller 4, the sponge 8 is embedded inside the first body 1 and the second body 2, and the surface of the sponge 8 is in contact with the surface of the roller 4. Both the first body 1 and the second body 2 have oil cavities 6 inside, the oil cavities 6 store lubricating oil, and an oil drain hole 7 is provided on one side of the bottom of the oil cavity 6, the other end of the oil drain hole 7 is in contact with the sponge 8, and an oil inlet 3 is provided on the top of the oil cavity 6. The internal channel of the oil inlet 3 is arranged vertically, and the oil inlet 3 is opened inside the first body 1 and the second body 2. Through the oil cavity 6 inside the shift fork, the lubricating oil inside the oil cavity 6 will seep out through the oil drain hole 7 when the shift fork moves, and then be sucked into the sponge 8. Through the contact between the sponge 8 and the roller 4, the lubricating oil inside the sponge 8 can lubricate the surface of the roller 4, thereby further reducing the friction between the roller 4 and the gear annular groove, and further extending the service life of the roller 4.

[0021] Working Principle: By setting multiple smoothly rotating rollers 4 at the bottom ends of the first body 1 and the second body 2 of the shift fork, the contact between the shift fork and the gear annular groove is achieved through the rollers 4 during use, significantly reducing friction. When the rollers 4 are subjected to friction, they can rotate accordingly. Compared with the traditional direct contact shift fork, this greatly reduces friction and extends the service life of the shift fork. In addition, the shift fork is designed with an oil cavity 6, which allows the lubricating oil in the oil cavity 6 to seep out through the oil drain hole 7 during operation and be absorbed by the sponge 8, thereby lubricating the surface of the rollers 4, further reducing the friction between the rollers 4 and the gear annular groove, and effectively extending the service life of the rollers 4.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A gear shift fork assembly for automobiles, characterized in that: The first body (1), the second body (2), the roller (4) and the sponge (8) are included. The second body (2) is provided on one side of the first body (1). The surface shape of the first body (1) corresponds to the surface shape of the second body (2). The roller (4) is provided at both ends of the bottom of the first body (1). One end of the roller (4) is rotatably connected to the first body (1), and the other end of the roller (4) is rotatably connected to the second body (2). The surface of the first body (1) is provided with a hole and groove, and a connecting bolt (5) is inserted inside the hole and groove. The other end of the connecting bolt (5) is threadedly connected to the inside of the second body (2).

2. The automotive shift fork assembly according to claim 1, characterized in that: The rollers (4) are provided in two sets, each set having five rollers (4) from top to bottom, and the two sets of rollers (4) are located between the first body (1) and the second body (2), and the surface of the rollers (4) protrudes from one side of the first body (1).

3. The automotive shift fork assembly according to claim 1, characterized in that: A sponge (8) is provided on one side of the roller (4). The sponge (8) is embedded inside the first body (1) and the second body (2), and the surface of the sponge (8) is in contact with the surface of the roller (4).

4. The automotive shift fork assembly according to claim 1, characterized in that: Both the first body (1) and the second body (2) have an oil cavity (6) inside. The oil cavity (6) stores lubricating oil. An oil drain hole (7) is provided on one side of the bottom of the oil cavity (6). The other end of the oil drain hole (7) is attached to the sponge (8).

5. The automotive shift fork assembly according to claim 4, characterized in that: The top of the oil cavity (6) is provided with an oil inlet (3), the internal channel of the oil inlet (3) is arranged vertically, and the oil inlet (3) is opened inside the first body (1) and the second body (2).

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