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Constant-velocity joint boot

A technology of constant velocity joints and protective covers, which is applied in gear transmission mechanisms, engine seals, elastic couplings, etc., can solve problems such as protective cover cracks and wear damage, and achieve good fatigue resistance and small deformation stress , excellent flexibility

Inactive Publication Date: 2020-10-27
FUKOKU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the tripod joint protective cover is used for a long period of time, cracks, wear damage, etc. tend to easily occur on the protective cover.

Method used

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  • Constant-velocity joint boot
  • Constant-velocity joint boot
  • Constant-velocity joint boot

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0069] The protective cover 1 for constant velocity joints of this embodiment (hereinafter referred to as "implementation protective cover") is figure 1 The protective cover for the three ball pin universal joint shown. The implementation shield is manufactured according to the above method ( Figure 7 (A), Figure 7 Of (b), Figure 8 (A), Figure 8 (B)). Therefore, repeated description is omitted. The following are examples of the various elements of implementing the protective cover.

[0070] [Each element of the implementation of the protective cover]

[0071] Total length: 107mm

[0072] Total length (except the protective cover belt assembly area): 94mm

[0073] Protective cover with non-assembly area of ​​the protective cover wall thickness: 1.3mm

[0074] Small diameter ring part: outer diameter 29.7mm

[0075] Large diameter ring part: outer diameter 79.4mm

[0076] Ripple: The number of crests and troughs are both 6

[0077] Average wall thickness 1.05mm

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PUM

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Abstract

The purpose of the present invention is to provide a constant-velocity joint boot that is capable of increasing fatigue damage resistance and realizing a longer life even when a constant-velocity joint oscillates at a large operation angle. In order to attain this purpose, provided is a constant velocity joint boot provided with: a large-diameter annular part that has a non-circular outer peripheral surface, that is to be mounted to a counterpart member, and that has an inner peripheral surface at least partially formed in a non-circular shape; a small-diameter annular part that is to be mounted to boot bellows and a shaft, the large-diameter annular part and the small-diameter annular part being at least integrated together; and an annular recess part that is formed at a portion of the inner peripheral surface of the large-diameter annular part, adjacent to the bellows.

Description

Technical field [0001] The present application relates to a protective cover for a constant velocity joint. The protective cover for a constant velocity joint is assembled on the outer periphery of the constant velocity joint. The constant velocity joint is a constant velocity joint used in a drive shaft (driveshaft) of a motor vehicle. The Velocity Universal Joint has a structure like a tripod joint in which a plurality of groove-shaped recesses along the axial direction are provided on the outer peripheral surface. Background technique [0002] In the past, in various fields such as automobiles, the following constant velocity joints were used: the input drive shaft and the output drive shaft are connected between two shafts, even if there is an angle between the two shafts. The shaft that differs between the two also rotates at the same speed for torque transmission. In the case of a motor vehicle, the constant velocity joint is used at both ends of the drive shaft, and the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D3/84F16J3/04F16J15/52
CPCF16J15/52F16J3/04F16D2250/0007F16D3/845F16D3/2055F16D3/202F16D3/843Y10S464/905
Inventor 大野雄三信末宪司
Owner FUKOKU CO LTD