Novel self-locking nut and connecting bolt thereof

Abstract

A novel self-locking nut includes a pressure-receiving bushing, a gasket, a spring, a lock washer, a movable washer and a threaded link end disposed at the tail of the pressure-receiving bushing. Themovable washer is disposed inside the pressure-receiving bushing and close to the threaded link end, the lock washer is disposed inside the pressure-receiving bushing and above the movable washer, thespring is disposed inside the pressure-receiving bushing and above the lock washer, and the gasket is disposed inside the pressure-receiving bushing and above the spring. A connecting bolt includes aconnecting bolt head, a connecting bolt rod and a connecting bolt thread portion, wherein the connecting bolt head is disposed at the head of the connecting bolt rod, the connecting bolt thread portion is disposed at the tail of the connecting bolt rod, the bottom of the connecting bolt thread portion is provided with a connecting bolt tail end slot, and the head of the connecting bolt head is provided with a connecting bolt head slot. The upper portion of the lock washer is provided with a boss, and the lower portion of the movable washer is provided with a boss. The novel self-locking nut and the connecting bolt have high tensile and shear resistance, require less torque for installation and disassembly and have high locking performance.

Description

technical field [0001] The invention relates to the technical field of self-locking nuts, in particular to a novel self-locking nut and connecting bolts thereof. Background technique [0002] At present, the connection of aircraft structures or most of the skin connections adopts self-locking nuts and bolts, but with the application of titanium alloys, high-strength stainless steel and other materials. Especially when it is matched with the closed self-locking nut, in the actual assembly and disassembly process, it is often encountered that the self-locking nut and the bolt are seized, the wrench torque is too large, and the wrench groove fails, resulting in the disassembly and maintenance. The original mounting holes were destroyed and replaced with enlarged parts. However, in order to solve the wrench problem during the overhaul again, the performance of the aircraft body itself was even sacrificed. In the process of solving this problem, various coatings are used for lub...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to solve the above deficiencies. The purpose of the present invention is to provide a new type of self-locking nut and its matching bolts to meet the functional requirements of repeated disassembly when the body is connected, especially to solve the problem of seizure caused by excessive torque when repeated disassembly. Dead, the problem of screwing off the bolt

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