CN214404416U

CN214404416U - Long-life steering universal joint shaft oil seal

Info

Publication number: CN214404416U
Application number: CN202120044295.8U
Authority: CN
Inventors: 陶肖利; 高建中
Original assignee: Wanxiang Qianchao Co Ltd; Wanxiang Group Corp
Current assignee: Wanxiang Qianchao Co Ltd; Wanxiang Group Corp
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-10-15
Anticipated expiration: 2031-01-08

Abstract

The utility model discloses a long-life steering universal joint axle oil blanket mainly includes cross, axle oil blanket, bearing, oil blanket skeleton, lip A, lip B, cambered surface, axle journal, and the suit bearing on the axle journal of cross installs the axle oil blanket between bearing oral area and the cross and seals, and the inside oil blanket skeleton that is equipped with of axle oil blanket, axle oil blanket one end are equipped with lip A and lip B, and lip A seals with the cambered surface cooperation of bearing oral area, and lip B and the cooperation of axle journal root are sealed. The oil seal framework is formed by low-carbon steel punching. The shaft oil seal of the utility model is designed with multiple lips, thereby improving the sealing performance of the product, prolonging the service life and bringing better market space; the framework is embedded in the shaft oil seal, so that the strength of the shaft oil seal is improved, and the shaft oil seal has better anti-aging deformation capability.

Description

Long-life steering universal joint shaft oil seal

Technical Field

The utility model relates to a field of universal joint, concretely relates to long-life steering universal joint axle oil blanket.

Background

The steering universal joint in the prior art mainly comprises sealed components such as a universal joint pin 1, a primary shaft oil seal 21, a bearing 3 and the like, wherein the bearing 3 also comprises functional components such as a needle roller and the like. When the universal joint works, the bearing 3 is lubricated by lubricating grease, and the friction among the outer ring, the roller pin and the cross shaft 1 is reduced, so that the service life of the universal joint is ensured. The sealing structure has the effects of preventing grease leakage, ensuring the lubricating effect and simultaneously isolating foreign matters such as external muddy water from invading. However, the existing original shaft oil seal 21 has a simple structure, only has a single-lip seal design with the upper opening of the bearing 3, has poor sealing performance, and internal grease is easy to overflow, so that early failure is caused, and the service life of the bearing 3 is influenced; meanwhile, the original shaft oil seal 21 is not embedded with a framework, and is easy to age, deform and lose efficacy after long-time use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art existence, and provide a long-life steering universal joint axle oil blanket.

The purpose of the utility model is accomplished through following technical scheme: the long-life steering universal joint shaft oil seal mainly comprises a cross shaft, a shaft oil seal, a bearing, an oil seal framework, a lip A, a lip B, an arc surface and a shaft neck, wherein the bearing is sleeved on the shaft neck of the cross shaft, the shaft oil seal is installed between a bearing opening and the cross shaft for sealing, the oil seal framework is arranged inside the shaft oil seal, the lip A and the lip B are arranged at one end of the shaft oil seal, the lip A is matched and sealed with the arc surface of the bearing opening, and the lip B is matched and sealed with the root of the shaft neck.

The oil seal framework is formed by low-carbon steel through punching.

The utility model has the advantages that: the shaft oil seal of the utility model is designed with multiple lips, thereby improving the sealing performance of the product, prolonging the service life and bringing better market space; the framework is embedded in the shaft oil seal, so that the strength of the shaft oil seal is improved, and the shaft oil seal has better anti-aging deformation capability.

Drawings

FIG. 1 is a schematic diagram of an assembly structure in the prior art.

Fig. 2 is a schematic view of the assembly structure of the present invention. A

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic view of the shaft oil seal structure of the present invention.

Description of reference numerals: the universal joint pin comprises a universal joint pin 1, a shaft oil seal 2, an original shaft oil seal 21, a bearing 3, an oil seal framework 4, a lip A5, a lip B6, an arc surface 7 and a shaft neck 8.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

example (b): as shown in the attached drawing, the long-life steering universal joint shaft oil seal mainly comprises a cross shaft 1, a shaft oil seal 2, a bearing 3, an oil seal framework 4, a lip A5, a lip B6, an arc surface 7 and a shaft neck 8, wherein the bearing 3 is sleeved on the shaft neck 8 of the cross shaft 1, the shaft oil seal 2 is installed between the opening of the bearing 3 and the cross shaft 1 for sealing, the oil seal framework 4 is arranged inside the shaft oil seal 2, one end of the shaft oil seal 2 is provided with a lip A5 and a lip B6, the lip A5 is matched and sealed with the arc surface 7 of the opening of the bearing 3, and the lip B6 is matched and sealed with the root of the shaft neck 8. Lip A5 prevents the internal grease from escaping from the bearing 3 mouth and prevents the ingress of mud, and lip B6 prevents the grease from leaking out of the root of the journal 8 of the cross shaft 1. Oil blanket skeleton 4 is low carbon steel stamping forming, and the part is inlayed and can improve 2 bulk strength of axle oil blanket after inside in rubber, prevents that axle oil blanket 2 from warping.

It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.

Claims

1. The utility model provides a long-life steering universal joint axle oil blanket which characterized in that: the sealing device mainly comprises a cross shaft (1), a shaft oil seal (2), a bearing (3), an oil seal framework (4), a lip A (5), a lip B (6), an arc surface (7) and a shaft neck (8), wherein the bearing (3) is sleeved on the shaft neck (8) of the cross shaft (1), the shaft oil seal (2) is installed between the opening part of the bearing (3) and the cross shaft (1) for sealing, the oil seal framework (4) is arranged inside the shaft oil seal (2), one end of the shaft oil seal (2) is provided with the lip A (5) and the lip B (6), the lip A (5) is matched and sealed with the arc surface (7) of the opening part of the bearing (3), and the lip B (6) and the root part of the shaft neck (8) are matched and sealed.

2. The long life steering knuckle spindle oil seal of claim 1, wherein: the oil seal framework (4) is formed by low-carbon steel through stamping.