Self-fastening anti-loose mechanical fastening mechanism

Abstract

The invention belongs to the technical field of fastening parts and particularly relates to a self-fastening anti-loose mechanical fastening mechanism. The technical problem that existing fastening mechanisms are prone to loosing is solved. The self-fastening anti-loose mechanical fastening mechanism comprises a bolt body; two threaded sections which are in threaded connection with a compression nut and an anti-loose nut respectively are arranged on the bolt body, and the screw thread directions of the two threaded sections are opposite; the bolt body is sleeved with an adjusting ring located between the compression nut and the anti-loose nut; the compression nut is connected with the adjusting ring through a single-direction rotating structure; a circumferential positioning structure and an axial positioning structure are arranged between the adjusting ring and the anti-loose nut; a damping structure is arranged between the adjusting ring and the anti-loose nut. The self-fastening anti-loose mechanical fastening mechanism has the advantages that the design is reasonable, the structure is simple, the connecting strength is high, the stability is good, the phenomenon of loosing during connection can be prevented, and the self-locking function is achieved.

Description

technical field [0001] The invention belongs to the technical field of fasteners, in particular to a self-tightening anti-loosening mechanical fastening mechanism. Background technique [0002] The screw pair fastening mechanism is a common threaded fastening mechanism. The most common fastening connection is a bolt and a nut that cooperate with each other. The threaded connection of the mechanical equipment connection is realized through the thread of the bolt. Bolts and nuts have good connection performance and simple structure, and are widely used in the field of mechanical equipment. However, bolts and nuts have the defect of easy loosening. With the frequent vibration of the equipment, the gap between the connecting parts increases, causing the bolts and nuts to loosen or even fall off. , In this way, for some mechanical connections, the connecting bodies are prone to separate from each other, and serious accidents are likely to occur. [0003] In order to solve the pr...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned scheme improves the problem that the existing bolts and nuts are easily loosened to a certain extent. Although the above-mentioned scheme is provided with several anti-skid grooves on the opposite top surfaces of the inner nut and the outer nut, the inner nut, the outer nut, and the bolts The starting point of the thread is uncertain, and the anti-skid groove is difficult to achieve the purpose of being locked together

Even if they can be accidentally stuck together, the solution still has the problem of low connection strength, a gap between the inner nut and the outer nut when the vibration is large, or the inner nut is easy to push the outer nut back, resulting in loosening between the inner nut and the connecting body, and Eventually, the outer nut and the inner nut will be separated from the bolt.

Images