Locking thread fastening module and thread fastening piece locking ring

Abstract

The invention relates to a locking thread fastening module and a thread fastening piece locking ring. The locking thread fastening module comprises a thread fastening piece and a locking ring; a convex-concave rotating stop structure is arranged on the outer wall of the thread fastening piece; the locking ring comprises a main body, and a rotating stop projection exceeding the inner wall of the main body and used for cooperating with a recess part of the convex-concave rotating stop structure; embedding teeth for embedding in a connecting piece for rotating stop cooperation with the connectingpiece is arranged on the outer wall of the main body; at least one of the rotating stop projection and the recess part is provided with an inclined guide surface for rotating out the rotating stop projection from the recess part when the two are relatively rotated; the main body achieves radial elastic deformation performance; and through the radial elastic deformation performance, when a torqueis applied to the thread fastening piece, the rotating stop projection can move to the radial outer side of the main body under the effect of the inclined guide surface to rotate out from the corresponding recess part of the convex-concave rotating stop structure, so that the rotation of the thread fastening piece in the main body is realized. The locking thread fastening module is simple and convenient to use.

Description

technical field [0001] The invention relates to an anti-loosening threaded fastening assembly and a threaded fastener locking ring. Background technique [0002] Most of the connections of aerospace engine case structures use screw piles. Both ends of the screw piles have threads respectively, and the thread at one end is an interference thread for connecting with the case. The size of the interference thread is larger than the threaded hole of the case. The size of the lock produces a locking force to achieve the purpose of connecting the receiver. However, the engine will generate high-frequency vibrations during use, and the screw piles are easy to loosen in a vibrating environment. [0003] The authorized announcement number is CN204041687U, and the Chinese utility model patent whose authorized announcement date is 2014.12.24 discloses an anti-loose toothed screw pile. The anti-loose toothed screw pile includes a screw rod and a connecting rod connected with the screw r...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a threaded fastener locking ring to solve the problem that the locking ring in the prior art has no elasticity, and the screw pile and the locking ring cannot rotate relative to each other, and can only be knocked into the connecting piece by a special tool. The problem of complicated procedures and inconvenient use; the present invention also provides an anti-loosening threaded fastening assembly using the threaded fastener locking ring

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