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Interlocking type locknut

A technology of locking nuts and locking nuts, applied in the directions of nuts, screws, bolts, etc., can solve the problem of loosening of bolts and nut connectors, and achieve the effect of preventing thermal expansion and elongation and achieving good effect of reuse.

Pending Publication Date: 2022-03-15
张家陶
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the loosening problem of the connection between the bolt and the nut, especially for the loosening of the connection between the bolt and the lock nut, the present invention proposes an interlocking locknut

Method used

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Embodiment Construction

[0026] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0027] It should be noted:

[0028] The critical angle θ refers to the minimum slope or angle required for the anti-loosening surfaces of the anti-loosening teeth to be unable to form relative sliding due to mutual resistance when the loosening occurs due to vibration;

[0029] The uphill tangent direction refers to the direction from the root of the anti-loosening tooth to the top of the tooth;

[0030] The slope refers to the angle between the uphill tangent of the point on the guide surface or the anti-loosening surface and the vertical plane of the central axis;

[0031] The helix angle of the elastic anti-loosening ring is greater than the lead angle of the same-handed thread, and the lead angle and helix angle have the same regulations as the terms of the thread in the machine.

[0032] The present invention as Figure...

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Abstract

The interlocking type lock nut comprises a bolt, a fastening nut, a locking nut and an elastic lock ring, the elastic lock ring comprises a backing ring body with an opening, and the two sides of the backing ring body are provided with lock teeth consistent in guiding direction and non-return direction respectively; the fastening nut comprises a fastening section and a locking section, anti-loose teeth are arranged on the fastening section, and a plurality of conical tongue pieces are arranged on the locking section; the inner cavity of the locking nut is provided with an inner conical surface, and the end face is provided with anti-loose teeth. The elastic anti-loosening ring is sleeved on the locking section of the fastening nut, and after the elastic anti-loosening ring is tightened, anti-loosening teeth of the fastening nut, the elastic anti-loosening ring and the locking nut are meshed with one another to form an interlocking structure; and meanwhile, the conical tongue piece is pressed by the inner conical surface of the locking nut to tightly hold the bolt. In the interlocking structure, the anti-loose teeth of the locking nut are subjected to resistance of the anti-loose teeth on the elastic anti-loose ring, the locking nut and the fastening nut do not loosen and rotate relatively, the conical tongue piece is continuously pressed, and it is ensured that the fastening nut does not loosen and rotate. And when the gradient of the anti-loosening surface is less than 90 degrees, the locking nut can be disassembled only by providing enough disassembling force.

Description

technical field [0001] The invention relates to an anti-loosening mechanism, in particular to an interlocking anti-loosening nut, which can effectively prevent the loosening between the bolt and the nut. Background technique [0002] Loosening of threaded connection components is a problem that has plagued the mechanical field for a long time. Under static load, the friction force generated between thread pairs has self-locking ability, and the bolts will not loosen; however, under vibration conditions, the friction force between thread pairs disappears instantaneously, and loosening and gyrations occur between thread pairs. [0003] In order to prevent the bolts and nuts from loosening, the commonly used anti-loosening methods are roughly divided into three categories: frictional anti-loosening, mechanical anti-loosening and permanent anti-loosening. In the anti-loosening technology, many patented technologies use self-locking structures to prevent the nut from loosening. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/26F16B39/282F16B39/12
CPCF16B39/26F16B39/282F16B39/122F16B39/126
Inventor 张家陶
Owner 张家陶
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