A combined self-reaction anti-loosening nut with high-precision torque coefficient

Abstract

The invention relates to a combined type self-reaction-force locknut with a high-precision torque coefficient. The combined type self-reaction-force locknut comprises a slotted nut, a gasket and a thread ring. When a working bolt is in a tightened state, the thread ring is embedded between the gasket and the bolt in the form of a wedge-shaped ring, and connection between the working bolt and the nut is effectively prevented from loosening. According to the combined type self-reaction-force locknut, in bolt and nut connection in the mechanical industry, mounting is achieved at the level of the small friction coefficient to obtain precise bolt pre-tightening force, and the anti-loose function is kept all the time in the equipment operating process. According to the combined type self-reaction-force locknut, in the equipment operating process of the mechanical industry, especially the petroleum and petrochemical industry, the power generation industry, the offshore wind power industry, the nuclear power industry, the high-speed rail industry, the bridge industry and the like, the reliability and safety of bolt and nut connection are greatly increased, and therefore the frequency of manual point detection and maintenance of bolts and nuts is greatly reduced. By means of scale use and popularization of the combined type self-reaction-force locknut, unlimited economic value can be generated.

Description

technical field [0001] The invention relates to a combined self-reflection locknut with high-precision torque coefficient, including a slotted nut, a washer, a threaded ring and the like. Background technique [0002] Many heavy equipment in the machinery industry are designed to be conveniently disassembled and repaired, and a large number of bolts are used to connect them. The reason why bolts and nuts can play the role of fastening is that there is friction between the threads of the bolt and the nut, and between the nut and the equipment parts, which can prevent the nut from loosening. People often achieve the purpose of anti-loosening by increasing the friction coefficient of bolts and nuts. Some anti-loosening bolts and nuts (such as serrated nuts, nylon nuts, double-serrated gaskets, etc.) increase the friction coefficient in the structural design, and the torque coefficient is very large. When tightening under the same torque, the friction coefficient error accounts...

AI Technical Summary

Problems solved by technology

In order to ensure the safety of engineers during work, the equipment must be stopped during the regular inspection of equipment bolts, which will reduce the output of the equipment and cause losses

The company spends a lot on the regular inspection and maintenance of bolt pretightening force every year, in terms of labor, purchase or lease of equipment for checking whether the bolts are loose, and production reduction due to downtime.

[0005] The problem of ensuring that the bolted connection is precisely tightened and has an anti-loosening function has become a bottleneck in the development of heavy equipment, seriously affecting its ability to develop to a higher level

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