Slidable impact-resistant starlike sleeve universal joint assembly

Abstract

The utility model discloses a slidable impact-resistant starlike sleeve universal joint assembly. The driving shaft assembly mainly solves the problem that a traditional driving shaft assembly is limited in sliding stroke and cannot meet the requirement for large sliding amount. The first channel (42) is arranged on the inner wall of the mounting groove; the second channel is formed in the circumferential outer wall of the intermediate shaft; the retainer (43) is arranged between the mounting groove and the intermediate shaft; and the rolling element (44) is arranged on the retainer and is matched with the first channel and the second channel. According to the slidable impact-resistant starlike sleeve universal joint assembly, the starlike sleeve is of a ball spline structure, torque transmission is guaranteed, meanwhile, the slippage function is achieved, power transmission is even, efficiency is high, and carrying is stable and safe.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile parts, concretely relates to a slippable anti-impact star-shaped sleeve universal joint assembly. BACKGROUND

[0002] Automobile is the necessary traffic tool of contemporary society, and most customers will consider the vehicle model with excellent driving experience when selecting the vehicle, such as driving stability, fuel economy, low failure rate, high life, etc. Based on these needs, each part on the corresponding passenger car must have excellent performance and quality performance. The key part of the race runner is the legs. Only the legs are strong, they can run faster, farther and longer. The same is true for cars. It can be said that the drive shaft assembly is the legs of the car. Only the drive shaft assembly has excellent performance, can the overall performance of the car be better.

[0003] The traditional drive shaft assembly has limited length slip travel, and the effect is not very good, which cannot meet the demand of large slip amount. UTILITY MODEL CONTENTS

[0004] In order to overcome the shortcomings of the background art, the utility model provides a slippable anti-impact star-shaped sleeve universal joint assembly, which mainly solves the problem of limited slip travel of the traditional drive shaft assembly and cannot meet the demand of large slip amount.

[0005] The technical scheme of the utility model is,

[0006] A slippable anti-impact star-shaped sleeve universal joint assembly, comprising an intermediate shaft, a first universal joint connected to one end of the intermediate shaft, and a second universal joint connected to the other end of the intermediate shaft, the first universal joint comprising a housing, the intermediate shaft extending into the housing and provided with a star-shaped sleeve, the star-shaped sleeve being provided with a mounting groove in the axial direction, and further comprising

[0007] A first channel is provided on the inner wall of the mounting groove.

[0008] A second channel is provided on the circumferential outer wall of the intermediate shaft.

[0009] A retainer is arranged between the mounting groove and the intermediate shaft.

[0010] Rolling elements are installed on the retainer and cooperate with the first channel and the second channel.

[0011] The rolling elements are steel balls.

[0012] Two retaining rings are installed on the intermediate shaft, and the retainer is arranged between the two retaining rings.

[0013] A first elastic element is arranged between one of the retaining rings and the left outer wall of the retainer.

[0014] The second elastic member is arranged between the other blocking ring and the right outer wall of the retainer.

[0015] The first elastic member and the second elastic member are springs.

[0016] The dust cover is connected with the intermediate shaft at one end and connected with the shell at one end.

[0017] The first groove is provided with six.

[0018] The second grooves are uniformly distributed on the circumferential outer wall of the intermediate shaft.

[0019] The beneficial effects of the utility model are: the utility model provides a slippable anti-impact star-shaped sleeve universal joint assembly, the structure of the ball spline is adopted for the star-shaped sleeve to ensure torque transmission and has a slippage function, power transmission is uniform, high in efficiency, and stable and safe in carrying. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a sectional view schematic diagram of the first embodiment of the utility model.

[0021] Figure 2 It is Figure 1 It is an enlarged schematic diagram of the A place in the middle.

[0022] Figure 3 It is a local sectional view schematic diagram of the first embodiment of the utility model. DETAILED DESCRIPTION

[0023] The utility model is further described below in combination with the drawings, a slippable anti-impact star-shaped sleeve universal joint assembly, including intermediate shaft 1, the intermediate shaft one end is connected with first universal joint 2, the other end is connected with second universal joint 3, the first universal joint includes shell 21, the one end of the intermediate shaft is in the shell and is equipped with star-shaped sleeve 4, the star-shaped sleeve is axially provided with installation groove 41, still includes first channel 42, is located in the installation groove inner wall;Second channel 15, be located in the circumferential outer wall of the intermediate shaft;Retainer 43, be located between the installation groove and the intermediate shaft;Rolling element 44, is installed on the retainer, and is matched with the first channel and second channel.In the inner wall of star-shaped sleeve and the outer wall of intermediate shaft setting channel, and cooperate rolling element and realize similar ball spline structure, ensure torque transmission and still have slippage function, power transmission is uniform, high in efficiency, and stable and safe in carrying.

[0024] In the embodiment, as shown in the drawing, the rolling element is steel ball.

[0025] In the embodiment, as shown in the drawings, two check rings 45 are installed on the intermediate shaft, and the retainer is arranged between the two check rings, thereby ensuring stable operation.

[0026] In the embodiment, as shown in the drawings, a first elastic member 46 is further arranged between one check ring and the left outer wall of the retainer.

[0027] In the embodiment, as shown in the drawings, a second elastic member 47 is further arranged between the other check ring and the right outer wall of the retainer. The elastic members are installed, which can ensure that the sliding process is more stable, and when the vehicle is impacted and vibrated, the elastic members on both sides can be sequentially contracted to absorb energy, reduce impact load, and effectively cope with the road driving in adverse conditions.

[0028] In the embodiment, as shown in the drawings, the first elastic member and the second elastic member are springs.

[0029] In the embodiment, as shown in the drawings, a dust cover 6 is further arranged, one end of the dust cover is connected with the intermediate shaft, and one end of the dust cover is connected with the shell. Foreign matters are prevented from entering the shell, and the service life is increased.

[0030] In the embodiment, as shown in the drawings, the first groove is provided with six grooves. The stable torque transmission is ensured.

[0031] In the embodiment, as shown in the drawings, the second grooves are uniformly arranged on the circumferential outer wall of the intermediate shaft. The second grooves are arranged in parallel and extend along the axial direction of the intermediate shaft, are uniformly arranged, and are stable in operation.

[0032] In the description of the utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0033] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0034] The embodiments described with reference to the drawings are exemplary and are intended to serve for the explanation of the present application and cannot be understood as a limitation of the present application. The embodiments should not be regarded as a limitation of the present application, but any improvement made on the basis of the spirit of the present application should be within the scope of protection of the present application.

Claims

1. A sliding, impact-resistant star-shaped universal joint assembly, comprising an intermediate shaft (1), one end of which is connected to a first universal joint (2), and the other end of which is connected to a second universal joint (3), the first universal joint comprising a housing (21), one end of which extends into the housing and is provided with a star-shaped sleeve (4), the star-shaped sleeve being provided with an axial mounting groove (41), characterized in that: Further comprising A first channel (42) is arranged on the inner wall of the mounting groove; A second channel (15) is arranged on the circumferential outer wall of the intermediate shaft; A retainer (43) is arranged between the mounting groove and the intermediate shaft; A rolling member (44) is mounted on the retainer and cooperates with the first channel and the second channel.

2. A slippable impact-resistant star-bush universal joint assembly according to claim 1, characterized in that: The rolling member is a steel ball.

3. A slippable impact-resistant star-bush universal joint assembly according to claim 2, characterized in that: Two retaining rings (45) are mounted on the intermediate shaft, and the retainer is arranged between the two retaining rings.

4. A slippable impact-resistant star-bush universal joint assembly according to claim 3, characterized in that: Further comprising a first elastic member (46) arranged between one of the retaining rings and the left outer wall of the retainer.

5. A slippable impact-resistant star-bush universal joint assembly according to claim 4, characterized in that: Further comprising a second elastic member (47) arranged between the other retaining ring and the right outer wall of the retainer.

6. A slippable impact-resistant star-bush universal joint assembly according to claim 5, characterized in that: The first elastic member and the second elastic member are springs.

7. A slippable impact-resistant star-bush universal joint assembly according to claim 6, characterized in that: Further comprising a dust cover (6), one end of the dust cover is connected with the intermediate shaft, and one end of the dust cover is connected with the shell.

8. A slippable impact-resistant star-bush universal joint assembly according to claim 7, characterized in that: The first channel is provided with 6.

9. A slippable impact-resistant star-bush universal joint assembly according to claim 8, characterized in that: The second channels are evenly distributed on the circumferential outer wall of the intermediate shaft.

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