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Anti-loosening metal gasket with fool-proof structure and mounting method of anti-loosening metal gasket

A metal gasket and anti-loosening technology, applied in the direction of connecting components, threaded fasteners, screws, etc., can solve problems such as low installation efficiency, failure of anti-loosening gaskets, misinstallation and misuse of gaskets, etc., to improve efficiency and ensure anti-loosening effect, the effect of avoiding relative motion

Pending Publication Date: 2018-06-19
SHANGHAI FUTURE HIGH-TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the process of installation and use, it is found that the gasket is very prone to misinstallation and misuse, that is, two large tooth surfaces should be installed opposite to each other, but one large tooth surface and one small tooth surface are mistakenly assembled opposite each other, resulting in the failure of the anti-loosening washer
and less efficient installation

Method used

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  • Anti-loosening metal gasket with fool-proof structure and mounting method of anti-loosening metal gasket
  • Anti-loosening metal gasket with fool-proof structure and mounting method of anti-loosening metal gasket
  • Anti-loosening metal gasket with fool-proof structure and mounting method of anti-loosening metal gasket

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0028] Taking the self-locking washer of M16 specification as an example, the height of the boss of the A washer is set to h1=1.65mm, the height of the riveted fold is h2=0.75mm, and the thickness of the sinking table of the B washer is d2=0.35mm, then when the A and B washers After being riveted together, the reserved height H in the vertical direction is:

[0029] H=h1-h2-d2=0.55mm………………(1)

[0030] There is still room for movement when the relative staggering of the gasket produces the maximum lifting height, that is, the maximum pre-tightening force.

[0031] In addition, the radius difference between the inner rings of the A washer and the B washer is Δr=r2-r1=1.5mm, the thickness of the boss of the A washer is d1=0.33mm, and the width of the sinking platform of the B washer is w=0.8mm, then when the A and B washers are riveted together, There is a gap L reserved in the horizontal direction as:

[0032] L=Δr-d1-w=0.4mm..........(2)

[0033] Avoid hindering the relative...

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Abstract

The invention discloses an anti-loosening metal gasket with a fool-proof structure and a mounting method of the anti-loosening metal gasket. The anti-loosening metal gasket is composed of a gasket body and a gasket body B. The two gasket bodies are provided with wedge-shaped tooth faces, and each gasket body is provided with one large tooth face with a small number of teeth and a small slope and the other small tooth face with a large number of teeth and a large slope. A turndown boss with a groove is arranged on the inner ring of the gasket body A in the direction perpendicular to the large tooth face. A sinking table is arranged on the inner ring of the gasket body B in the direction parallel to the large tooth face. The radius of the inner ring of the gasket body B is larger than that of the gasket body A. The boss of the gasket body A and the sinking table of the gasket body B are oppositely mounted and riveted together, and gaps are reserved in the horizontal direction and the perpendicularly direction. The anti-loosening metal gasket has the beneficial effects of being simple in structure and convenient to mount; and due to the special design of the gasket body A and the gasket body B, it can be ensured that the large tooth faces of the gasket body A and the gasket body B are opposite and the small tooth faces of the gasket body A and the gasket body B are in contact withan opponent part simply by oppositely riveting the sinking table and the boss, and therefore the anti-loosening effect of the 100% anti-loosening metal gasket is achieved.

Description

technical field [0001] The invention relates to a metal washer, in particular to an anti-loosening metal washer with a fool-proof structure, which belongs to the field of fasteners. Background technique [0002] In the process of industrial production, all kinds of mechanical equipment are accompanied by different degrees of vibration when they are in operation. This vibration phenomenon is the direct cause of the loosening of bolts connecting different parts of the equipment, resulting in equipment failure or failure. Relevant professional and technical personnel have successively developed and used a variety of anti-loosening metal washers in work practice, such as spring washers, wedge-type self-locking washers, etc., among which wedge-type self-locking washers have better effect. [0003] The working principle of this self-locking washer is very simple and consists of two washers. The outer side is a small tooth surface with a large friction coefficient; the inner side ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/24B21D39/00
CPCF16B39/24B21D39/00
Inventor 王明月钟伟于立刚
Owner SHANGHAI FUTURE HIGH-TECH CO LTD
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