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Cross universal joint

A cross-shaft universal and cross-shaft technology, applied in the direction of couplings, shafts and bearings, bearing components, etc., can solve the problems of muddy water easy to enter, cross-shaft universal joint performance and service life, etc., to avoid leakage Effect

Pending Publication Date: 2021-08-24
HANGZHOU ZHENGQIANG UNIVERSAL JOINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when the cross shaft universal joint is in use, muddy water can easily enter the bearing, which has a great impact on the performance and service life of the cross shaft universal joint. A cross shaft universal joint is now proposed

Method used

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Embodiment Construction

[0017] refer to Figure 1 to Figure 5 , a cross shaft universal joint of the present invention, comprising a cross shaft body 1, a bearing outer ring 7 and a needle roller 8, the cross shaft body 1 has four shaft heads 11, and the shaft heads 11 are respectively equipped with bearing outer rings Ring 7, with several needle rollers 8 arranged in the circumferential direction between the two, which is characterized in that it also includes an outer oil seal 2, an inner oil seal 3, a compensating oil seal 4, a compression screw sleeve 5 and an oil storage chamber 6, and the outer oil seal 2 is installed on the shaft head 11, the inner oil seal 3 is installed on the inner side of the bearing outer ring 7, and the outer side of the bearing outer ring 7 is installed with a compensating oil seal 4 and a compression screw sleeve 5, and the compensating oil seal 4 is arranged on the outer oil seal 2 and the inner oil seal 3, one side of the outer oil seal 2 is against the first stepped...

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Abstract

The invention provides a cross universal joint. The cross universal joint comprises a universal joint body, a bearing outer ring, a roller pin, an outer oil seal, an inner oil seal, a compensation oil seal, a pressing threaded sleeve and an oil storage cavity, wherein the outer oil seal is installed on a universal joint head, the inner oil seal is installed on the inner side of the bearing outer ring, the compensation oil seal is arranged between the outer oil seal and the inner oil seal, one side of the outer oil seal abuts against a first stepped groove in the universal joint head, the other side of the outer oil seal abuts against the compensation oil seal, the pressing threaded sleeve is in threaded connection with the bearing outer ring and used for driving the compensation oil seal to press against the outer oil seal, an outer ring of the inner oil seal is arranged in a second stepped groove in the bearing outer ring in a clamped mode, an inner ring of the inner oil seal abuts against the outer wall of the universal joint head, the oil storage cavity is formed in the universal joint body, and an oil guide channel communicating with the oil storage cavity is formed in the universal joint head and used for guiding lubricating oil into the roller pin in the bearing outer ring. Through cooperation of the outer oil seal, the inner oil seal and the compensation oil seal, multiple sealing is achieved, dust can be effectively prevented, and leakage of internal lubricating grease is avoided.

Description

【Technical field】 [0001] The invention relates to the technical field of universal joint parts, in particular to a cross shaft universal joint. 【Background technique】 [0002] The existing cross shaft universal joint generally includes a cross shaft, an outer ring, needle rollers and an oil seal. The outer ring is a cylindrical cylinder with one end closed. On the wall, the oil seal is located in the open end of the outer ring. A needle roller assembly composed of several needle rollers is arranged between the shaft sleeve and the shaft head. In order to ensure the stable working state of the cross shaft universal joint, the needle roller assembly needs to be regularly added lubricating oil to ensure the use effect. In addition, when the cross shaft universal joint is in use, muddy water can easily enter the bearing, which has a great impact on the performance and service life of the cross shaft universal joint. A cross shaft universal joint is now proposed. 【Content of i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D3/38F16D3/41F16C33/66F16C33/78
CPCF16C33/6629F16C33/7809F16D3/385F16D3/41
Inventor 沈柏松江拖王强俞单清颜建丰
Owner HANGZHOU ZHENGQIANG UNIVERSAL JOINT
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