Constant velocity joint with axial heat dissipation structure

Abstract

A kind of constant velocity joint with axial heat dissipation structure. Mainly solve the problem that the heat dissipation effect of current constant velocity joint is not good. It is characterized by: it further includes connecting pipe (4), is installed on the shell, it includes the compression ring (41) being opposite to the axial outer wall of the shell, the first heat dissipation hole (411) is equipped on the compression ring, the circumferential outer wall of the compression ring is used for dust cover installation;Second heat dissipation hole (12), is equipped on the axial outer wall of shell;Annular sealing gasket (5), it is between the axial outer wall of the shell and the compression ring and is sealed with both and is matched;Third heat dissipation hole, is equipped on the sealing gasket, for the first heat dissipation hole and second heat dissipation hole are connected.The utility model provides a kind of constant velocity joint with axial heat dissipation structure, heat dissipation hole is also set in axial surface, and heat dissipation effect is better.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts, specifically to a constant velocity universal joint with an axial heat dissipation structure. Background Technology

[0002] As shown in Chinese patent CN219827508U, since the axial end face of the universal joint is usually covered by a dust cover, the current heat dissipation structure can only be set on the circumferential end face, and the heat dissipation effect is not good. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a constant velocity universal joint with an axial heat dissipation structure, which mainly solves the problem that the heat dissipation effect of the current constant velocity universal joint is not good.

[0004] The technical solution of this utility model is as follows: A constant velocity universal joint with an axial heat dissipation structure includes a housing, a star-shaped sleeve inside the housing, a retainer between the star-shaped sleeve and the inner wall of the housing, and a ball bearing on the retainer; the inner wall of the housing also has channels that mate with the ball bearings; and further includes... A connecting pipe is installed on the housing, and includes a pressure ring disposed opposite to the axial outer wall of the housing. The pressure ring is provided with a first heat dissipation hole, and the circumferential outer wall of the pressure ring is used for dust cover installation. The second heat dissipation hole is located on the axial outer wall of the housing; An annular sealing gasket is disposed between the axial outer wall of the housing and the pressure ring and is in a sealing fit with both. The third heat dissipation hole is provided on the sealing gasket and is used to connect the first heat dissipation hole and the second heat dissipation hole.

[0005] The second heat dissipation hole is an angled hole.

[0006] The outer circumferential wall of the housing is provided with several heat dissipation protrusions.

[0007] The connecting pipe is pressed onto the circumferential outer wall of the housing.

[0008] A sealing ring is also provided between the circumferential inner wall of the connecting pipe and the circumferential outer wall of the housing.

[0009] The channel is composed of several arc surfaces that are tangent to the outer wall of the ball.

[0010] The channel is equipped with several oil tanks.

[0011] The beneficial effects of this utility model are: This utility model provides a constant velocity universal joint with an axial heat dissipation structure, and heat dissipation holes are also provided on the axial surface, resulting in better heat dissipation. Attached Figure Description

[0012] Figure 1 This is a perspective view of one embodiment of the present invention.

[0013] Figure 2 This is an exploded view of one embodiment of the present invention.

[0014] Figure 3 This is a partial cross-sectional view of one embodiment of the present invention.

[0015] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0016] Figure 5 This is a partial cross-sectional view of one embodiment of the present invention. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings. A constant velocity universal joint with an axial heat dissipation structure includes a housing 1, a star-shaped sleeve 2 inside the housing, a retainer 3 between the star-shaped sleeve and the inner wall of the housing, and a ball bearing 31 on the retainer; the inner wall of the housing also has a groove 11 that mates with the ball bearing; it also includes a connecting pipe 4, which is installed on the housing and includes a pressure ring 41 disposed opposite to the axial outer wall of the housing, the pressure ring having a first heat dissipation hole 411, the circumferential outer wall of the pressure ring being used for dust cover installation; a second heat dissipation hole 12, disposed on the axial outer wall of the housing; an annular sealing gasket 5, disposed between the axial outer wall of the housing and the pressure ring and sealingly engaging with both; and a third heat dissipation hole 50, disposed on the sealing gasket and used to connect the first heat dissipation hole and the second heat dissipation hole. The second heat dissipation hole is a complete circular hole. It is positioned on the sealing gasket to achieve a seal against the gasket wall. Due to the presence of the sealing gasket, one end face contacts and seals the axial outer wall of the housing, while the other end face contacts and seals the end face of the pressure ring. Grease inside the housing will not enter or leak from the heat dissipation hole. The axial end face is specifically the side where the opening of the housing is located. A retainer is installed inside the opening, and the annular sealing gasket does not obstruct this opening. The pressure ring can be an integrally formed bend on the connecting pipe. Additionally, the dust cover can be installed on the connecting pipe using clamps, similar to conventional dust covers installed with clamps. The connecting pipe itself is made of metal and also has a certain heat dissipation capacity.

[0018] In this embodiment, as shown in the figure, the second heat dissipation hole is an angled hole, which has a large heat dissipation area.

[0019] In this embodiment, as shown in the figure, the outer circumferential wall of the housing is provided with several heat dissipation protrusions 13 to further increase heat dissipation capacity.

[0020] In this embodiment, as shown in the figure, the connecting pipe is pressed onto the circumferential outer wall of the housing. Installation is relatively convenient.

[0021] In this embodiment, as shown in the figure, a sealing ring 14 is also provided between the circumferential inner wall of the connecting pipe and the circumferential outer wall of the housing. This further enhances the sealing effect.

[0022] In this embodiment, as shown in the figure, the channel is composed of several arc surfaces tangent to the outer wall of the ball. Referring to patent CN 218468113 U, this is a point-contact structure. By precisely machining multiple arc segments, the steel ball can simultaneously contact multiple points when contacting the star-shaped sleeve and bell-shaped shell, significantly reducing the pressure per unit area and thus reducing wear caused by excessive pressure.

[0023] In this embodiment, as shown in the figure, the channel is provided with several oil grooves 111. This solves the problem of insufficient grease lubrication in other two-point contact universal joints.

[0024] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. The embodiments should not be considered as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A constant velocity universal joint with an axial heat dissipation structure, comprising a housing (1), a star-shaped sleeve (2) provided inside the housing, a retainer (3) provided between the star-shaped sleeve and the inner wall of the housing, and a ball bearing (31) provided on the retainer; the inner wall of the housing is further provided with a groove (11) that cooperates with the ball bearing; characterized in that: Also includes A connecting pipe (4) is installed on the housing, and includes a pressure ring (41) disposed opposite to the axial outer wall of the housing. The pressure ring is provided with a first heat dissipation hole (411), and the circumferential outer wall of the pressure ring is used for dust cover installation. The second heat dissipation hole (12) is located on the axial outer wall of the housing; An annular sealing gasket (5) is disposed between the axial outer wall of the housing and the pressure ring and is sealed to both. The third heat dissipation hole is provided on the sealing gasket and is used to connect the first heat dissipation hole and the second heat dissipation hole.

2. A constant velocity universal joint with an axial heat dissipation structure according to claim 1, characterized in that: The second heat dissipation hole is an angled hole.

3. A constant velocity universal joint with an axial heat dissipation structure according to claim 1, characterized in that: The outer circumferential wall of the housing is provided with several heat dissipation protrusions (13).

4. A constant velocity universal joint with an axial heat dissipation structure according to claim 1, characterized in that: The connecting pipe is pressed onto the circumferential outer wall of the housing.

5. A constant velocity universal joint with an axial heat dissipation structure according to claim 1, characterized in that: A sealing ring (14) is also provided between the circumferential inner wall of the connecting pipe and the circumferential outer wall of the housing.

6. A constant velocity universal joint with an axial heat dissipation structure according to claim 1, characterized in that: The channel is composed of several arc surfaces that are tangent to the outer wall of the ball.

7. A constant velocity universal joint with an axial heat dissipation structure according to any one of claims 1-6, characterized in that: The channel is provided with several oil troughs (111).

Images