Multi-raceway constant velocity universal joint assembly

Abstract

The utility model provides a multi-raceway constant velocity joint assembly. The tripod mainly solves the problem that an outer ball ring of a tripod of an existing constant velocity universal joint is a one-section type complete arc-shaped surface to achieve sliding fit with a channel of the inner wall of a shell, and stability is not high. The ball bearing is characterized by further comprising a plurality of ribs (31) which are arranged on the circumferential outer wall of the outer ball ring and distributed in the radial direction of the outer ball ring. And the slideways (11) are arranged on the inner wall of the shell, correspond to the convex edges one by one and are in sliding fit with the convex edges. According to the multi-raceway constant velocity universal joint assembly, more stable transmission performance can be provided through the multiple raceways, vibration and noise in the movement process are reduced, and the driving comfort is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile parts, concretely relates to a multi-roller constant velocity universal joint assembly. BACKGROUND

[0002] The constant velocity universal joint is the device that connects two shafts with the angle or the change of mutual position between the shafts and makes the two shafts transmit power with the same angular velocity, and it can overcome the problem of non-uniform velocity of the ordinary cross axle type universal joint.

[0003] The constant velocity universal joint commonly uses the structure of three ball pin type, such as the Chinese patent with the publication number "CN102242775A", and the outer ball ring of the common three ball pin is a complete arc surface in a section type to realize the sliding cooperation with the channel of the inner wall of the shell, and the stability is not strong. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the insufficient of the background art, the utility model provides a multi-roller constant velocity universal joint assembly, mainly solves the problem that the outer ball ring of the three ball pin of the current constant velocity universal joint is a complete arc surface in a section type to realize the sliding cooperation with the channel of the inner wall of the shell, and the stability is not strong.

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

[0006] A multi-roller constant velocity universal joint assembly, comprising a shell, a three ball pin assembly is arranged in the shell, the three ball pin assembly comprises an outer ball ring, and further comprising

[0007] A plurality of convex edges are arranged on the circumferential outer wall of the outer ball ring and are distributed along the radial direction of the outer ball ring.

[0008] A plurality of sliding channels are arranged on the inner wall of the shell and correspond to the convex edges one by one and slide with the convex edges.

[0009] The three ball pin assembly comprises a three-pin frame, the three-pin frame comprises a journal, an inner ball ring is arranged outside the journal, and a rolling element is arranged between the outer ball ring and the inner ball ring.

[0010] The rolling element is a roller pin.

[0011] The three-pin frame comprises a shaft hole for installing a transmission shaft, and a resilient element is coaxially arranged in the shaft hole in the shell.

[0012] The resilient element is a spring.

[0013] An installation groove is arranged in the shell, and part of the spring is arranged in the installation groove.

[0014] Further comprising a top cover, the top cover is arranged at one end of the spring extending out of the installation groove.

[0015] The utility model discloses a beneficial effect is: the utility model provides a kind of multi-raceway constant velocity universal joint assembly, multi-section raceway can provide more stable transmission performance, reduce the vibration and noise in the movement process, improve the comfort of driving. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a sectional view schematic diagram of one embodiment of the utility model.

[0017] Figure 2 It is a sectional view schematic diagram of one embodiment of the utility model.

[0018] Figure 3 It is a sectional view schematic diagram of one embodiment of the utility model. DETAILED DESCRIPTION

[0019] The utility model makes further illustration in combination with the drawings: as shown in the figure, a kind of multi-raceway constant velocity universal joint assembly, including shell 1, three ball pin assembly 2 is equipped in the shell, the three ball pin assembly includes outer ball ring 3, still including several convex edges 31, be located at the circumferential outer wall of the outer ball ring, and distribute along outer ball ring radial direction;Several slideways 11 are located at the inner wall of the shell, with the convex edge one-to-one correspondence and sliding fit.It is equipped with multiple convex edges on the outer wall of the ball ring, and the inner wall of the shell is equipped with multiple structures for sliding fit with the convex edge, multi-section slideway can provide more stable transmission performance, reduce the vibration and noise in the movement process, improve the comfort of driving;Multi-section raceway design allows greater interaxle angle variation, which means that constant velocity universal joint can maintain stable constant velocity transmission under more complex and changeable driving conditions.

[0020] In the embodiment, as shown in the figure, the three ball pin assembly includes three pin holders 21, the three pin holders include journal 22, the journal is equipped with inner ball ring 23 outside, and the outer ball ring is equipped with rolling element 24 between the inner ball ring.Using this structure, the structure is relatively simple, and assembly is convenient.

[0021] In the embodiment, as shown in the figure, the rolling element is a roller.

[0022] In the embodiment, as shown in the figure, the three pin holders include shaft hole 25 for transmission shaft installation, and the shell is installed with elastic member 4 coaxially arranged with the shaft hole.In the case that universal joint bears load, compression spring can provide elastic compensation, reduce impact and vibration generated due to interaxle angle variation, so as to improve the smoothness and stability of transmission system.

[0023] In the embodiment, as shown in the figure, the elastic member is a spring.Specifically, it can be a compression spring.

[0024] In the embodiment, as shown in the figure, the housing is provided with a mounting groove 12, and part of the spring is mounted in the mounting groove.

[0025] In the embodiment, as shown in the figure, a top cover 13 is further included, which is arranged at one end of the spring extending mounting groove. The top cover is used to contact the transmission shaft after being mounted, so as to increase the contact area. Meanwhile, the top cover can be fixed by pressing the circumference of the spring through the annular wall thereof.

[0026] In the description of the present application, 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 based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0027] In addition, the terms "first", "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0028] The embodiments described with reference to the drawings are exemplary and are intended to explain 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 multi- race constant velocity joint assembly comprising a housing (1) within which is located a tri-ball pin assembly (2) comprising an outer ball ring (3) characterised in that: Also comprising a plurality of convex ridges (31) arranged on the circumferential outer wall of the outer spherical ring and distributed along the radial direction of the outer spherical ring; a plurality of sliding grooves (11) arranged on the inner wall of the shell and corresponding to the convex ridges one by one and slidingly matched with the convex ridges.

2. A multi-row constant velocity joint assembly as described in claim 1, wherein: The three-ball pin assembly comprises a three-pin frame (21), the three-pin frame comprises a journal (22), the journal is externally provided with an inner spherical ring (23), and a rolling element (24) is arranged between the outer spherical ring and the inner spherical ring.

3. A multi-row constant velocity joint assembly according to claim 2, characterized in that: The rolling element is a rolling pin.

4. A multi-row constant velocity joint assembly as described in claim 2 wherein: The three-pin frame comprises a shaft hole (25) for the installation of a transmission shaft, and an elastic element (4) coaxially arranged with the shaft hole is arranged in the shell.

5. A multi-row constant velocity joint assembly according to claim 4, characterized in that: The elastic element is a spring.

6. A multi-groove constant velocity joint assembly according to claim 5, characterized in that: An installation groove (12) is arranged in the shell, and part of the spring is installed in the installation groove.

7. A multi-groove constant velocity joint assembly as in claim 6, wherein: Further comprising a top cover (13) arranged at one end of the spring extending out of the installation groove.

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