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Elastic piece nut with circular truncated cone

A technology of shrapnel and round table, which is applied in the direction of nuts, screws, bolts, etc., can solve the problems of increased shear force and bending moment of screws, and achieve the effect of improving stability and prolonging service life

Inactive Publication Date: 2013-11-20
WUXI ZHANGJINGYU STEEL MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this kind of nut can play a certain anti-loosening effect, due to the continuous deformation of the shrapnel, the shear force and bending moment on the screw increase, resulting in the loss of the tightening effect of the screw due to deformation.

Method used

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  • Elastic piece nut with circular truncated cone
  • Elastic piece nut with circular truncated cone

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Embodiment Construction

[0010] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0011] See figure 1 and figure 2 , the present invention includes a flat U-like structure of the shrapnel, the shrapnel includes a horizontally placed upper shrapnel 2 and a lower shrapnel 3 arranged obliquely upward relative to the upper shrapnel 2, the upper shrapnel 2 has a first through hole 21, and its upper surface is affixed to Cylindrical boss 1, the boss 1 has a threaded through hole 11, and there is a rib 5 between the upper surface of the upper elastic piece 2 and the side wall of the boss 1; The round platform 4 has a second through hole 41 .

[0012] When the present invention is installed, the fastening screw is screwed in from the threaded through hole 11 of the cylindrical boss 1, and passes through the first through hole 21 of the upper elastic piece 2 and the second through hole 41 of the lower elastic piece 3 in seque...

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Abstract

The invention relates to an elastic piece nut with a circular truncated cone. The elastic piece nut comprises an elastic piece which is flatwise arranged and of a similar U-shaped structure. The elastic piece comprises an upper elastic piece and a lower elastic piece, wherein the upper elastic piece is horizontally placed, and the lower elastic piece is arranged in a slant upward mode relative to the upper elastic piece. The upper elastic piece is provided with a first through hole, a columnar boss is fixedly connected with the upper surface of the upper elastic piece, the boss is provided with a threaded through hole, a rib plate is arranged between the upper surface of the upper elastic piece and the side wall of the boss, the upper surface of the lower elastic piece is fixedly connected with the circular truncated cone of a conical structure, and the circular truncated cone is provided with a second through hole. Compared with an existing elastic piece nut, through the lower elastic piece which is arranged in a slant mode, when a screw is screwed down, the elastic piece deforms to supply large pretightening force to the screw, the shear force and the bending moment of the elastic piece to the screw are small, therefore, the service life is prolonged, and connecting stability is improved.

Description

technical field [0001] The invention relates to a nut, in particular to a shrapnel nut. Background technique [0002] Nuts are the most commonly used parts for fastening connections in mechanical structures. The shrapnel nut is a new type of nut. Compared with ordinary nuts, it has the characteristics of good anti-loosening effect. When the shrapnel nut is used, the shrapnel on the nut will be deformed. As the compression force of the nut increases, the elastic force of the shrapnel will also increase, thereby playing the role of anti-loosening and locking. Although this kind of nut can play a certain anti-loosening effect, due to the continuous deformation of the shrapnel, the shear force and bending moment on the screw increase, resulting in the de-fastening effect of the screw due to deformation. Contents of the invention [0003] In view of the above-mentioned shortcomings of the prior art, the applicant conducts research and improvement, and provides a shrapnel nut ...

Claims

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Application Information

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IPC IPC(8): F16B39/284F16B37/00
Inventor 孙毅刚
Owner WUXI ZHANGJINGYU STEEL MACHINERY PLANT
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