Automobile transmission shaft structure

Abstract

The utility model discloses an automobile transmission shaft structure, which belongs to the technical field of transmission shafts and comprises a shaft body, an upper arc-shaped rubber plate and a lower arc-shaped rubber plate are respectively arranged above and below the shaft body, and a limiting component for preventing the upper arc-shaped rubber plate and the lower arc-shaped rubber plate from displacing is arranged on the shaft body. And a locking assembly for fixing the upper arc-shaped rubber plate and the lower arc-shaped rubber plate is arranged on the limiting assembly. Therefore, through the deformation force of the upper and lower arc-shaped rubber plates and the upper and lower rubber strips, the two ends of the upper and lower arc-shaped rubber plates and the upper and lower rubber strips can be inserted into the limiting grooves in the two limiting cylinders respectively, then the upper and lower arc-shaped rubber plates are locked through the locking assemblies, and the two ends of the upper and lower arc-shaped rubber plates can be limited through the two limiting cylinders. Displacement on the surface of the shaft body is avoided, and stability is improved.

Description

Technical Field

[0001] This utility model relates to an automotive driveshaft structure and belongs to the field of driveshaft technology. Background Technology

[0002] The driveshaft is a key component in the automotive transmission system. Its main function is to transmit the engine's power from the transmission to the drive wheels, while also accommodating the relative movement of various chassis components during vehicle operation. When the vehicle is in motion, the shaft (especially the chassis driveshaft) is directly exposed to impacts from stones, sand, metal shavings, etc. High-speed flying debris can form dents or scratches on the surface, so it is necessary to protect the driveshaft shaft.

[0003] Announcement No. CN222633637U discloses a transmission shaft assembly with good dustproof effect, including a transmission shaft body and a dustproof mechanism on the outer wall of the transmission shaft body. The dustproof mechanism includes an upper dust cover rotatably connected to the outer wall of the transmission shaft body, a lower dust cover slidably connected to the bottom of the upper dust cover, connecting sleeves fixedly connected to the front and back of the upper dust cover, a connecting pin fixedly connected to the outer wall of the lower dust cover at the corresponding position of the connecting sleeve, a locking block fixedly connected to the top of the connecting pin above the connecting sleeve, and a limiting ring rotatably connected to the top of the connecting sleeve. The limiting ring has a through groove inside. By designing a transmission shaft assembly with good dustproof effect and using the dustproof mechanism in this device to protect the transmission shaft body, the problem of difficult and cumbersome disassembly of the dust cover after damage in existing transmission shaft assemblies is solved.

[0004] The above solution has the following shortcomings in practical use:

[0005] In actual use, since there are no limiters at both ends of the dust cover, when the drive shaft rotates at high speed, the centrifugal force may cause the upper and lower dust covers to shift on the surface of the drive shaft, making it unstable. Summary of the Invention

[0006] To solve the above-mentioned technical problems, this utility model provides an automotive drive shaft structure that limits the upper and lower arc-shaped rubber plates on the drive shaft to prevent displacement of the upper and lower arc-shaped rubber plates when the drive shaft rotates, thereby improving stability.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] An automotive drive shaft structure includes: a shaft body, an upper arc-shaped rubber plate and a lower arc-shaped rubber plate respectively provided above and below the shaft body, a limiting component for preventing displacement of the upper arc-shaped rubber plate and the lower arc-shaped rubber plate on the shaft body, and a locking component for fixing the upper arc-shaped rubber plate and the lower arc-shaped rubber plate on the limiting component.

[0009] Preferably, the limiting component includes two limiting cylinders, which are respectively installed at both ends of the shaft. Limiting grooves are formed on the inner walls of both sides of the limiting cylinders. Upper rubber strips are installed on both sides of the upper arc-shaped rubber plate, and lower rubber strips are installed on both sides of the lower arc-shaped rubber plate.

[0010] Preferably, the locking assembly includes a threaded hole one, which is located at the top of the limiting cylinder and communicates with the limiting groove. Both ends of the upper rubber strip and the lower rubber strip are provided with threaded holes two, and the threaded hole one and the threaded hole two are connected by a long bolt.

[0011] Preferably, the bottom of the upper rubber strip is provided with an insert, and the top of the lower rubber strip is provided with a slot for insertion into the insert.

[0012] Preferably, both the insert and the lower rubber strip are provided with threaded holes three, and a short bolt is rotatably installed between the two threaded holes three.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by the deformation force of the upper and lower arc-shaped rubber plates and the upper and lower rubber strips, the two ends of the upper and lower arc-shaped rubber plates and the upper and lower rubber strips can be inserted into the limiting grooves in the two limiting cylinders respectively. Then, the upper and lower arc-shaped rubber plates are locked by the locking assembly. The two limiting cylinders can limit the two ends of the upper and lower arc-shaped rubber plates, preventing them from displacing on the surface of the shaft and improving stability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the limiting component structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the locking component structure of this utility model.

[0018] In the diagram: 1. Shaft; 2. Upper arc-shaped rubber plate; 3. Lower arc-shaped rubber plate; 4. Limiting assembly; 5. Locking assembly; 401. Limiting cylinder; 402. Limiting groove; 403. Upper rubber strip; 404. Lower rubber strip; 501. Threaded hole one; 502. Threaded hole two; 503. Long bolt; 504. Insert strip; 505. Slot; 506. Threaded hole three; 507. Short bolt. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0020] Please see Figure 1-3 This utility model provides a technical solution:

[0021] An automotive drive shaft structure includes: a shaft body 1, an upper arc-shaped rubber plate 2 and a lower arc-shaped rubber plate 3 respectively provided above and below the shaft body 1, a limiting component 4 provided on the shaft body 1 to prevent displacement of the upper arc-shaped rubber plate 2 and the lower arc-shaped rubber plate 3, and a locking component 5 provided on the limiting component 4 to fix the upper arc-shaped rubber plate 2 and the lower arc-shaped rubber plate 3.

[0022] Furthermore, the limiting component 4 can limit the upper arc-shaped rubber plate 2 and the lower arc-shaped rubber plate 3 to prevent the upper arc-shaped rubber plate 2 and the lower arc-shaped rubber plate 3 from being displaced on the shaft 1.

[0023] In this embodiment: the limiting component 4 includes two limiting cylinders 401, which are respectively installed at both ends of the shaft 1. Limiting grooves 402 are opened on both sides of the inner wall of the limiting cylinder 401. Upper rubber strips 403 are installed on both sides of the upper arc-shaped rubber plate 2, and lower rubber strips 404 are installed on both sides of the lower arc-shaped rubber plate 3.

[0024] Furthermore, the two ends of the upper arc-shaped rubber plate 2 and the lower arc-shaped rubber plate 3 are respectively inserted into two limiting cylinders 401. The two limiting cylinders 401 can limit the two ends of the upper arc-shaped rubber plate 2 and the lower arc-shaped rubber plate 3, preventing the upper arc-shaped rubber plate 2 and the lower arc-shaped rubber plate 3 from being displaced on the shaft 1, thereby improving stability.

[0025] In this embodiment: the locking assembly 5 includes a threaded hole 501, which is located on the top of the limiting cylinder 401 and communicates with the limiting groove 402. Both ends of the upper rubber strip 403 and the lower rubber strip 404 are provided with threaded holes 502. The threaded hole 501 and the threaded hole 502 are connected by a long bolt 503.

[0026] Furthermore, the long bolt 503 is screwed into the threaded hole 502, which can fix the upper rubber strip 403 and the lower rubber strip 404 in the limiting groove 402, thus fixing the upper arc-shaped rubber plate 2 and the lower arc-shaped rubber plate 3.

[0027] In this embodiment: an insert 504 is installed at the bottom of the upper rubber strip 403, and a slot 505 is provided at the top of the lower rubber strip 404 for insertion into the insert 504.

[0028] Furthermore, inserting the insert 504 into the slot 505 can improve the stability of the upper rubber strip 403 and the lower rubber strip 404.

[0029] In this embodiment: threaded holes 506 are provided on both the insert 504 and the lower rubber strip 404, and a short bolt 507 is rotatably installed between the two threaded holes 506.

[0030] Furthermore, the short bolt 507 is screwed into the threaded hole 506 to fix the insert 504 in the slot 505, further improving the stability between the upper rubber strip 403 and the lower rubber strip 404.

[0031] The workflow of this embodiment is as follows: Since the upper arc-shaped rubber plate 2, the lower arc-shaped rubber plate 3, the lower rubber strip 404, and the upper rubber strip 403 have a certain deformation force, the lower rubber strip 404 can be inserted into the limiting groove 402 first to complete the installation of the lower arc-shaped rubber plate 3. Then, the upper rubber strip 403 can be inserted into the limiting groove 402 to complete the installation of the upper arc-shaped rubber plate 2. This allows the upper arc-shaped rubber plate 2 and the lower arc-shaped rubber plate 3 to be integrated to protect the surface of the shaft 1. The upper rubber strip 403 and the lower rubber strip 404 are inserted into the limiting groove 402, and the upper arc-shaped rubber plate 2 and the lower arc-shaped rubber plate 3 are limited by the two limiting cylinders 401 to prevent the upper arc-shaped rubber plate 2 and the lower arc-shaped rubber plate 3 from shifting on the shaft 1. Finally, the long bolt 503 is screwed into the threaded hole 502 to fix the upper arc-shaped rubber plate 2 and the lower arc-shaped rubber plate 3.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A type of automotive driveshaft structure, characterized in that, include: The shaft has an upper arc-shaped rubber plate above it and a lower arc-shaped rubber plate below it. The shaft is provided with a limiting component to prevent the upper arc-shaped rubber plate and the lower arc-shaped rubber plate from shifting. The limiting component is provided with a locking component to fix the upper arc-shaped rubber plate and the lower arc-shaped rubber plate.

2. The automotive driveshaft structure according to claim 1, characterized in that, The limiting assembly includes two limiting cylinders, which are respectively installed at both ends of the shaft. Limiting grooves are opened on the inner walls of both sides of the limiting cylinders. Upper rubber strips are installed on both sides of the upper arc-shaped rubber plate, and lower rubber strips are installed on both sides of the lower arc-shaped rubber plate.

3. The automotive driveshaft structure according to claim 2, characterized in that, The locking assembly includes a threaded hole one, which is located at the top of the limiting cylinder and communicates with the limiting groove. Both ends of the upper and lower rubber strips are provided with threaded holes two, and the threaded holes one and two are connected by a long bolt.

4. The automotive driveshaft structure according to claim 2, characterized in that, The bottom of the upper rubber strip is fitted with an insert, and the top of the lower rubber strip has a slot for inserting the insert.

5. The automotive driveshaft structure according to claim 4, characterized in that, Both the insert and the lower rubber strip have threaded holes three, and a short bolt is rotatably installed between the two threaded holes three.

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