High-bearing and long-life cross-shaft universal joint

A cross-shaft universal, long-life technology, applied in the field of universal joints, can solve the problems of high contact stress between needle rollers and cross-shaft journals, so as to improve the life of cross-shaft universal joints, improve oil storage capacity, and reduce contact effect of stress

Pending Publication Date: 2019-02-12
WANXIANGQIANCHAO CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fundamental reason is that the contact stress between the needle roller and the cross shaft journal is relatively large

Method used

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  • High-bearing and long-life cross-shaft universal joint
  • High-bearing and long-life cross-shaft universal joint
  • High-bearing and long-life cross-shaft universal joint

Examples

Experimental program
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Effect test

Embodiment Construction

[0016] The present invention will be described in detail below in conjunction with accompanying drawing:

[0017] Embodiment: As shown in the accompanying drawings, this kind of high-load and long-life cross shaft universal joint mainly includes a cross shaft 1, an outer ring 2, a needle roller 3, a sealing ring 4, a U-shaped groove 5, and four parts of the cross shaft 1. A U-shaped groove 5 is designed on the journal, and the needle roller 3 is installed in the U-shaped groove 5, and the needle roller 3 is covered with the outer ring 2, and the sealing ring 4 is installed between the outer ring 2 and the journal of the cross shaft 1 to seal Needle Roller 3. The U-shaped groove 5 is arc-shaped, so that the contact form between the needle roller 3 and the journal of the cross shaft 1 is changed from "convex to convex" to "convex to concave", which can effectively increase the contact area. At the same time, the U-shaped groove 5 can also improve the ability of the journal surf...

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Abstract

The invention discloses a high-bearing and long-life cross-shaft universal joint. The high-bearing and long-life cross-shaft universal joint comprises a cross shaft, outer rings, roller pins, sealingrings and u-shaped grooves. The u-shaped grooves are formed in four shaft journals of the cross shaft. The roller pins are installed in the u-shaped grooves. The roller pins are sleeved with the outerrings, and the sealing rings are installed between the outer rings and the shaft journals of the cross shaft to seal the roller pins. By means of the high-bearing and long-life cross-shaft universaljoint, due to the design of the u-shaped grooves, the contact area between the roller pins and the journal shafts of the cross shaft is effectively enlarged, the oil storage capacity of the surfaces of the journal shafts is improved, the contact stress of the roller pins and the shaft journals of the cross shaft is reduced by 20% or higher, and the fatigue life of a bearing is prolonged by 15% orhigher.

Description

technical field [0001] The invention relates to the field of universal joints, in particular to a high-load-bearing and long-life cross-axis universal joint. Background technique [0002] When the cross shaft is running, especially under heavy load conditions, the contact stress between the needle roller and the journal is relatively large, and the needle roller swings back and forth between the journal and the outer ring of the cross shaft, and will not undergo revolution movement along the journal, which will cause cross shaft Early fatigue spalling occurred in the shaft journal. The fundamental reason is that the contact stress between the needle roller and the cross shaft journal is relatively large. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a high-load-bearing and long-life cross-axis universal joint. [0004] The purpose of the present invention is achieved through the follow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D3/26
CPCF16D3/26
Inventor 牛杰孙朝阳程杰高天芬
Owner WANXIANGQIANCHAO CO LTD
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