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Locknut

A technology for locking nuts and nuts, applied in the directions of nuts, screws, bolts, etc., can solve the problems of bolt connection failure, complex processing technology, and high production costs, and achieve the effects of avoiding accidents, prolonging fatigue life, and easy production.

Inactive Publication Date: 2012-09-12
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, for some large equipment, especially heavy equipment and parts with high stress, the nuts are prone to loosening due to excessive load or vibration, resulting in bolt connection failure and accidents
Most of the existing anti-loosening nuts are equipped with rubber rings inside. Although they can play a certain anti-loosening function, the processing technology of this kind of nuts is complicated and the production cost is relatively high.

Method used

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Embodiment Construction

[0018] Such as figure 1 As shown, the lower end surface of the present invention is a concave trumpet-shaped inclined-plane structure, and the connected part has an inclination angle β; a rubber gasket 2 is arranged between the nut 1 and the connected part, thereby realizing Anti-loosening function of the nut.

[0019] Compared with conventional nuts, the nut 1 and the connected part of the present invention adopt a slope structure, the inclination angle between the end surface of the nut 1 in contact with the connected part and the plane of the connected part is β, and the angle of β is 0.3 degrees about. The advantage of this structure is that after the pre-tightening force is applied to the bolt, the outer edge of the nut 1 is the first to contact the connected part. After pre-tightening, the pressure at the edge is the largest. Relatively speaking, the force arm from the action point to the center of the bolt is the smallest. Long, the bolt works best. In addition, a la...

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Abstract

The invention discloses a locknut and is characterized in that: the lower end surface of the locknut is in an inwards-concave trumpet-shaped inclined plane structure, and an inclination angle Beta is formed between the lower end surface and a connected part; and a rubber gasket is arranged between the locknut and the connected part. By adopting the structure, the locknut has the following advantages: 1, with the locknut, the friction coefficient between the locknut and the connected part is increased, the bolt connection is effectively prevented from loosening, the fatigue life of the connected equipment is prolonged, the safety of the bolt connection is improved, and accidents are avoided; 2, with the special structure of the lower end surface of the locknut, the pre-tightening force at the outer edge is enabled to be the greatest, and furthermore, the force arm from the pressure action point to the bolt center is guaranteed, and the locknut is effectively prevented from loosening; and 3, the structure is simple, the locknut is easy to produce, the cost is low, and the performance is reliable.

Description

[0001] Involved areas [0002] The invention relates to a lock nut. Background technique [0003] Nuts are the most commonly used components in mechanical connections. It has a wide range of applications and is closely related to our lives. It is connected with bolts to withstand large loads, and is convenient for equipment maintenance and disassembly and parts replacement. [0004] However, for some large-scale equipment, especially heavy-duty equipment and components with high stress, nuts are prone to loosening due to excessive load or vibration, resulting in failure of bolted connections and accidents. Most of the existing anti-loosening nuts are equipped with rubber rings inside. Although they can play a certain anti-loosening function, the processing technology of such nuts is complicated and the production cost is relatively high. [0005] It is a problem to be solved in the prior art to provide a new type of nut which has a reliable anti-loosening function while ens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B27/00F16B39/24F16B39/282
Inventor 明宇
Owner CHERY AUTOMOBILE CO LTD
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