Constant velocity joint drive shaft assembly

Abstract

Constant velocity universal joint drive shaft assembly. Mainly solves the problem that the conventional transmission shaft assembly is relatively complicated through the planetary sleeve retainer and the like. It is characterized by: it also includes a plurality of grooves (22) arranged on the circumferential inner wall of the housing; a connector (11) arranged on the portion of the intermediate shaft extending into the housing, and the circumferential outer wall of the connector is provided with drum-shaped teeth (111) matching the grooves; an elastic member (3), one end of which is pressed against the connector, and the other end is used for pressing against the inner wall of the housing. The utility model provides a constant velocity universal joint drive shaft assembly, which can well realize the simplification of assembly assembly by changing the original spline into a connection with drum-shaped teeth, so as to facilitate installation, and at the same time has a large load-bearing capacity and can withstand greater torque and force; and enhances the stability of power transmission. It can better meet the needs of different markets in the modern automobile industry.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts, in particular to a constant velocity universal joint drive shaft assembly. Background Art

[0002] The automobile constant velocity joint drive shaft assembly is an important part of the automobile. The automobile constant velocity joint drive shaft assembly includes a universal joint with one end connected to the power output end of the automobile gearbox, and a universal joint with the other end connected to the power input part of the automobile wheel. When assembling the automobile constant velocity joint drive shaft assembly in the prior art, it is necessary to manufacture multiple processed parts and purchase multiple purchased parts for assembly, which takes a lot of time and a large amount of inventory is stagnant, increasing inventory costs. Utility Model Content

[0003] In order to overcome the shortcomings of the background technology, the utility model provides a constant velocity universal joint drive shaft assembly, which mainly solves the problem that the conventional transmission shaft assembly is relatively complicated in transmission through a planet sleeve retainer and the like.

[0004] The technical solution of the utility model is:

[0005] The constant velocity universal joint drive shaft assembly comprises an intermediate shaft, one end of the intermediate shaft is provided with a first universal joint, and the other end is provided with a second universal joint, the first universal joint comprises a housing, and further comprises

[0006] A plurality of channels are provided on the circumferential inner wall of the shell;

[0007] A connector, arranged at the portion of the intermediate shaft extending into the housing, wherein the peripheral outer wall of the connector is provided with drum-shaped teeth matching with the channel;

[0008] The elastic member has one end pressed against the connector and the other end pressed against the inner wall of the shell.

[0009] The shell comprises a mouth, and a retaining ring is installed on the inner wall of the mouth. The retaining ring is arranged on the outer side of the drum-shaped teeth and is blocked and matched with the drum-shaped teeth.

[0010] The elastic member is a spring.

[0011] The connector is axially provided with a mounting groove for installing part of the spring.

[0012] The drum-shaped tooth is a structure with a higher middle portion and lower ends.

[0013] It also includes a dust cover, one end of which is connected to the intermediate shaft, and the other end of which is connected to the circumferential outer wall of the shell.

[0014] The dust cover is connected to the intermediate shaft through a clamp.

[0015] The beneficial effects of the utility model are as follows: the utility model provides a constant velocity universal joint drive shaft assembly, which can simplify the assembly by changing the original spline to a connection with a drum-shaped tooth, so as to facilitate installation, and has a large load resistance, can withstand greater torque and force, and enhances the stability of power transmission. It can better meet the needs of different markets in the modern automobile industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional schematic diagram of an embodiment of the utility model.

[0017] Figure 2 It is a partial cross-sectional schematic diagram of an embodiment of the utility model.

[0018] Figure 3 It is a cross-sectional schematic diagram of an embodiment of the utility model after swinging. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings: As shown in the figure, the constant velocity universal joint drive shaft assembly includes an intermediate shaft 1, one end of the intermediate shaft is provided with a first universal joint 2, and the other end is provided with a second universal joint 3, the first universal joint includes a housing 21, and also includes a plurality of grooves 22, which are provided on the circumferential inner wall of the housing; a connector 11, which is provided at the portion of the intermediate shaft extending into the housing, and the circumferential outer wall of the connector is provided with drum-shaped teeth 111 that match the grooves;

[0020] The elastic member 5 has one end that is pressed against the connector, and the other end that is pressed against the inner wall of the housing. By changing the original spline to a connection with a drum-shaped tooth, the assembly can be simplified for installation, and the load resistance is large, and it can withstand greater torque and force; the stability of power transmission is enhanced. It can better meet the needs of different markets in the modern automobile industry. For the processing technology, this product structure reduces multiple processed parts and purchased parts that need to be purchased. The drum-shaped tooth surface improves the contact conditions of the inner and outer teeth, avoids the disadvantages of straight tooth end edge extrusion and stress concentration under angular displacement conditions, and improves the tooth surface friction, wear and grease leakage risk caused by long-term driving; the elastic member in the fixed joint is in a compressed state, and the drum-shaped tooth surface improves the contact conditions of the inner and outer teeth, and improves the tooth surface friction, wear and grease leakage risk. It should be noted that when applied to the fixed end universal joint, there is still a small axial displacement, and the use of elastic members can eliminate this displacement in time.

[0021] In this embodiment, as shown in the figure, the housing includes a mouth, and a retaining ring 4 is installed on the inner wall of the mouth. The retaining ring is arranged on the outer side of the drum-shaped teeth and blocks and cooperates with the drum-shaped teeth to prevent it from falling out, making it safer and more stable to use.

[0022] In this embodiment, as shown in the figure, the elastic member is a spring, which has low cost and is easy to install.

[0023] In this embodiment, as shown in the figure, the connector is axially provided with a mounting groove 112 for partially installing the spring, so as to prevent the spring from falling out and make the installation more stable.

[0024] In this embodiment, as shown in the figure, the drum-shaped tooth is a structure with a higher middle and lower ends.

[0025] In this embodiment, as shown in the figure, a dust cover 6 is also included, one end of which is connected to the intermediate shaft, and the other end is connected to the circumferential outer wall of the housing, so as to prevent foreign matter from entering and increase the service life.

[0026] In this embodiment, as shown in the figure, the dust cover is connected to the intermediate shaft through a clamp, which is convenient for assembly and disassembly.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] The embodiments described with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention. The embodiments should not be regarded as limiting the present invention, but any improvements based on the spirit of the present invention should be within the scope of protection of the present invention.

Claims

1. A constant velocity universal joint drive shaft assembly, comprising an intermediate shaft (1), one end of the intermediate shaft being provided with a first universal joint (2), and the other end being provided with a second universal joint (3), the first universal joint comprising a housing (21), characterized in that: Also includes A plurality of channels (22) are provided on the circumferential inner wall of the shell; A connector (11) is provided at the portion of the intermediate shaft extending into the housing, and a circumferential outer wall of the connector is provided with drum-shaped teeth (111) matching with the channel; The elastic member (5) has one end that is pressed against the connector and the other end that is pressed against the inner wall of the housing.

2. The constant velocity universal joint drive shaft assembly according to claim 1, characterized in that: The housing comprises a mouth, and a retaining ring (4) is installed on the inner wall of the mouth. The retaining ring is arranged on the outer side of the drum-shaped teeth and is in blocking cooperation with the drum-shaped teeth.

3. The constant velocity joint drive shaft assembly according to claim 2, characterized in that: The elastic member is a spring.

4. The constant velocity joint drive shaft assembly according to claim 3, characterized in that: The connecting head is axially provided with a mounting groove (112) for installing part of the spring.

5. The constant velocity universal joint drive shaft assembly according to claim 4, characterized in that: The drum-shaped tooth is a structure with a higher middle portion and lower ends.

6. The constant velocity joint drive shaft assembly according to claim 5, characterized in that: It also includes a dust cover (6), one end of which is connected to the intermediate shaft, and the other end of which is connected to the circumferential outer wall of the shell.

7. The constant velocity joint drive shaft assembly according to claim 6, characterized in that: The dust cover is connected to the intermediate shaft through a clamp.

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