Driving shaft for automobile constant velocity universal coupling

Abstract

The utility model discloses a driving shaft for an automobile constant velocity universal coupling, which relates to the technical field of automobile universal couplings and comprises an installation mechanism, the installation mechanism comprises a universal coupling body, and auxiliary mechanisms are arranged at two ends of the universal coupling body. And fixing cylinders are arranged at the ends, away from the universal coupling body, of the two auxiliary mechanisms correspondingly. The positioning blocks are inserted into the opening and closing grooves, then the driving shaft body can be in butt joint with the interior of the fixing cylinder, the contact area between the driving shaft body and the inner wall of the fixing cylinder can be increased through the arranged anti-skid parts, and the mounting bolts penetrate through the threaded reinforcing cylinders and are in threaded connection with the threaded grooves formed in the mounting plates and the mounting strips; and the opening and closing groove can be extruded by the two mounting plates to stretch out and draw back, so that the fixing cylinder can clamp the outer part of the driving shaft body, and the driving shaft with diameter errors can be stably and fixedly mounted with the universal coupling body.

Description

Technical Field

[0001] This utility model relates to the field of automotive universal coupling technology, specifically a drive shaft for automotive constant velocity universal couplings. Background Technology

[0002] A constant velocity universal joint (CV joint) is a device used in automotive power transmission systems. Its main function is to allow the vehicle's drive shaft to rotate at a constant speed when transmitting torque, unaffected by wheel bounce or vehicle body vibration. This ingeniously designed coupling maintains synchronized rotation between the output and input shafts at different angles, ensuring stability and comfort during vehicle operation.

[0003] However, in existing technologies, the connection end of a traditional automotive universal coupling to the drive shaft cannot be actively opened and closed. When there is an error between the diameter of the drive shaft and the diameter of the connection end, it is inconvenient to mate the drive shaft into the interior of the connection end for stable and fixed installation. Therefore, we provide a drive shaft for an automotive constant velocity universal coupling. Utility Model Content

[0004] The purpose of this invention is to provide a drive shaft for automotive constant velocity universal couplings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drive shaft for an automotive constant velocity universal coupling, comprising: an installation mechanism, the installation mechanism including a universal coupling body, auxiliary mechanisms provided at both ends of the universal coupling body, a fixed cylinder provided at the end of each of the two auxiliary mechanisms away from the universal coupling body, opening and closing grooves provided on both outer sides of each of the two fixed cylinders, two mounting plates provided on both outer sides of each of the two fixed cylinders, two threaded reinforcing cylinders provided on the side of each of the eight mounting plates away from the opening and closing grooves, mounting bolts provided inside the multiple threaded reinforcing cylinders, nuts provided at the bottom ends of the multiple mounting bolts, anti-slip parts provided on the inner walls of each of the two fixed cylinders, a drive shaft body provided inside each of the two fixed cylinders, positioning blocks provided on both sides of each of the two drive shaft bodies, and mounting strips provided on the side of each of the four positioning blocks away from the drive shaft body.

[0006] As a further preferred embodiment of this technical solution, the auxiliary mechanism includes a flange, the side of the flange near the fixed cylinder being fixedly connected to the end of the fixed cylinder away from the drive shaft body, and the side of the flange away from the fixed cylinder being fixedly installed on the end of the universal coupling body near the fixed cylinder by fixing bolts.

[0007] As a further preferred embodiment of this technical solution, two mounting plates are fixedly connected to both outer sides of the fixed cylinder, and a threaded reinforcing cylinder is fixedly connected to the side of the mounting plate furthest from the groove.

[0008] As a further preferred embodiment of this technical solution, the outer side of the mounting bolt is threadedly connected to the inner wall of the threaded reinforcing cylinder, and the outer side of the bottom end of the mounting bolt is threadedly connected to the inner wall of the nut.

[0009] As a further preferred embodiment of this technical solution, the external part of the drive shaft body is connected to the fixed cylinder, and positioning blocks are fixedly connected to both external sides of the drive body.

[0010] As a further preferred embodiment of this technical solution, each of the two positioning blocks is fixedly connected to a mounting strip on the side away from the drive shaft body, and the outside of the positioning block is inserted into the opening and closing groove.

[0011] As a further preferred embodiment of this technical solution, the bottom end of the mounting bolt is threadedly connected to the threaded groove of the mounting strip through the threaded reinforcing cylinder.

[0012] This utility model provides a drive shaft for automotive constant velocity universal couplings, which has the following advantages:

[0013] (1) In this utility model, the positioning block is inserted into the opening and closing groove, and then the drive shaft body will be connected to the fixed cylinder. The anti-slip part can increase the contact area between the drive shaft body and the inner wall of the fixed cylinder. The mounting bolt passes through the threaded reinforcement cylinder and is threadedly connected to the threaded groove of the mounting plate and the mounting strip for further reinforcement. The opening and closing groove will be squeezed between the two mounting plates and thus expand and contract. Therefore, the fixed cylinder will clamp the outside of the drive shaft body to ensure that the drive shaft with diameter error can be stably fixed and installed with the universal coupling body.

[0014] (2) The present invention can securely fix the flange and the universal coupling body by means of the fixing bolts provided. It can not only ensure the stability and reliability of the connection between the two, but also effectively avoid loosening caused by vibration or impact during operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a drive shaft structure for an automotive constant velocity universal coupling according to the present invention.

[0016] Figure 2 This is a side view of the disassembled structure of the drive shaft mounting mechanism for a constant velocity universal joint in automobiles according to this utility model.

[0017] Figure 3 This is a partial disassembly view of the drive shaft mounting mechanism for a constant velocity universal joint in automobiles, according to this utility model.

[0018] Figure 4This is a side view of the disassembled structure of the auxiliary mechanism for the drive shaft of a constant velocity universal joint for automobiles according to this utility model.

[0019] In the diagram: 1. Mounting mechanism; 11. Universal coupling body; 12. Fixing cylinder; 13. Mounting plate; 14. Threaded reinforcing cylinder; 15. Mounting bolt; 16. Nut; 17. Opening groove; 18. Anti-slip part; 19. Drive shaft body; 110. Positioning block; 111. Mounting strip;

[0020] 2. Auxiliary mechanism; 21. Flange; 22. Fixing bolt. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figures 1-4 As shown, in this embodiment, a drive shaft for a constant velocity universal joint for automobiles includes: a mounting mechanism 1, which includes a universal joint body 11. Auxiliary mechanisms 2 are provided at both ends of the universal joint body 11. A fixed cylinder 12 is provided at the end of each auxiliary mechanism 2 away from the universal joint body 11. Opening and closing grooves 17 are provided on both outer sides of each fixed cylinder 12. Two mounting plates 13 are provided on both outer sides of each fixed cylinder 12. Two threaded reinforcing cylinders 14 are provided on the side of each mounting plate 13 away from the opening grooves 17. Two mounting plates 13 are fixedly connected to both outer sides of the fixed cylinder 12. Threaded reinforcing cylinders 14 are fixedly connected to the side of each mounting plate 13 away from the opening grooves 17. Mounting bolts 15 are provided inside each threaded reinforcing cylinder 14. Nuts 16 are provided at the bottom end of each mounting bolt 15. The outer side of the mounting bolt 15 is threaded to the inner wall of the threaded reinforcing cylinder 14, and the outer side of the bottom end of the mounting bolt 15 is threaded to the inner wall of the nut 16. The inner walls of the two fixing cylinders 12 are provided with anti-slip parts 18. The interior of the two fixing cylinders 12 is provided with a drive shaft body 19. The two sides of the two drive shaft bodies 19 are provided with positioning blocks 110. The outer side of the drive shaft body 19 is connected to the inside of the fixing cylinder 12. The two sides of the drive body are fixedly connected with positioning blocks 110. The side of the four positioning blocks 110 away from the drive shaft body 19 is provided with an installation strip 111. The side of the two positioning blocks 110 away from the drive shaft body 19 is fixedly connected with an installation strip 111. The outer side of the positioning block 110 is inserted into the opening and closing groove 17. The bottom end of the mounting bolt 15 passes through the threaded reinforcing cylinder 14 and is threaded to the threaded groove of the installation strip 111.

[0023] In this embodiment, when the connecting end of the universal coupling needs to be fixedly installed with the drive shaft, the positioning block 110 can be inserted into the opening and closing groove 17, and then the drive shaft body 19 will be mated in the fixed cylinder 12. The anti-slip part 18 can increase the contact area between the drive shaft body 19 and the inner wall of the fixed cylinder 12. It is mentioned that after the drive shaft body 19 is positioned and installed in the fixed cylinder 12, the mounting strip 111 will be between the two mounting plates 13, and the threaded groove of the mounting strip 111 will be on the same vertical line as the threaded reinforcement cylinder 14. Therefore, the mounting bolt 15 is used to pass through the threaded reinforcement cylinder 14 and to make a threaded connection with the mounting plate 13 and the threaded groove of the mounting strip 111 for further reinforcement. After the drive shaft body 19 is fixedly installed in the fixed cylinder 12, the opening and closing groove 17 will be squeezed between the two mounting plates 13 and thus expand and contract. Therefore, the fixed cylinder 12 will clamp the outside of the drive shaft body 19 to ensure that the drive shaft with diameter error can be stably fixedly installed with the universal coupling body 11.

[0024] like Figures 1-4 As shown, the auxiliary mechanism 2 includes a flange 21. The side of the flange 21 near the fixed cylinder 12 is fixedly connected to the end of the fixed cylinder 12 away from the drive shaft body 19. The side of the flange 21 away from the fixed cylinder 12 is fixedly installed on the end of the universal coupling body 11 near the fixed cylinder 12 by fixing bolts 22.

[0025] In this embodiment, the flange 21 and the universal coupling body 11 can be firmly fixed and installed by the fixed bolts 22. This not only ensures the stability and reliability of the connection between the two, but also effectively avoids loosening caused by vibration or impact during operation.

[0026] This utility model provides a drive shaft for automotive constant velocity universal couplings, and its specific working principle is as follows:

[0027] When the universal coupling needs to be fixedly installed with the drive shaft, the positioning block 110 is first inserted into the opening and closing groove 17 to ensure that the drive shaft body 19 can be accurately aligned with the fixed cylinder 12. At this time, the mounting strip 111 is placed between the two mounting plates 13. The mounting bolt 15 passes through the threaded reinforcing cylinder 14 and is threadedly connected to the threaded grooves of the mounting plates 13 and the mounting strip 111 for further reinforcement. The opening and closing groove 17 will be compressed between the two mounting plates 13 and thus expand and contract. Therefore, the fixed cylinder 12 will clamp the outside of the drive shaft body 19 to ensure that the drive shaft with diameter error can be stably fixedly installed with the universal coupling body 11. The flange 21 can be firmly fixedly installed with the universal coupling body 11 by means of the fixing bolt 22.

[0028] 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 drive shaft for an automotive constant velocity universal coupling, characterized in that, include: The mounting mechanism (1) includes a universal coupling body (11), and auxiliary mechanisms (2) are provided at both ends of the universal coupling body (11). A fixed cylinder (12) is provided at the end of each of the two auxiliary mechanisms (2) away from the universal coupling body (11). Opening and closing grooves (17) are provided on both outer sides of each of the two fixed cylinders (12). Two mounting plates (13) are provided on both outer sides of each of the eight mounting plates (13). A [missing information - likely a design feature] is provided on the side of each mounting plate (13) away from the opening and closing groove (17). Two threaded reinforcing cylinders (14) are provided, and each of the multiple threaded reinforcing cylinders (14) is provided with a mounting bolt (15). Each of the multiple mounting bolts (15) is provided with a nut (16) at its bottom end. The inner walls of the two fixed cylinders (12) are provided with anti-slip parts (18). The interior of each of the two fixed cylinders (12) is provided with a drive shaft body (19). Both sides of the two drive shaft bodies (19) are provided with positioning blocks (110). The four positioning blocks (110) are provided with mounting strips (111) on the side away from the drive shaft body (19).

2. The drive shaft for an automotive constant velocity universal coupling according to claim 1, characterized in that: The auxiliary mechanism (2) includes a flange (21), the side of the flange (21) near the fixed cylinder (12) is fixedly connected to the end of the fixed cylinder (12) away from the drive shaft body (19), and the side of the flange (21) away from the fixed cylinder (12) is fixedly installed on the end of the universal coupling body (11) near the fixed cylinder (12) by fixing bolts (22).

3. The drive shaft for an automotive constant velocity universal coupling according to claim 1, characterized in that: Two mounting plates (13) are fixedly connected to both sides of the outer side of the fixed cylinder (12), and a threaded reinforcing cylinder (14) is fixedly connected to the side of the mounting plate (13) away from the groove (17).

4. The drive shaft for an automotive constant velocity universal coupling according to claim 1, characterized in that: The outer side of the mounting bolt (15) is threaded to the inner wall of the threaded reinforcing cylinder (14), and the outer side of the bottom end of the mounting bolt (15) is threaded to the inner wall of the nut (16).

5. A drive shaft for an automotive constant velocity universal joint according to claim 1, characterized in that: The drive shaft body (19) is externally connected to the fixed cylinder (12), and positioning blocks (110) are fixedly connected to both sides of the drive body.

6. The drive shaft for an automotive constant velocity universal coupling according to claim 1, characterized in that: The two positioning blocks (110) are fixedly connected to the side away from the drive shaft body (19) with mounting strips (111), and the outside of the positioning blocks (110) is inserted into the opening and closing groove (17).

7. A drive shaft for an automotive constant velocity universal joint according to claim 1, characterized in that: The bottom end of the mounting bolt (15) is threaded through the threaded reinforcing cylinder (14) and the threaded groove of the mounting strip (111).

Images