Nut

Abstract

The invention discloses a nut. The nut comprises a nut, an outer ring and a spring gasket, wherein an axial end of the outer ring is movably sleeved at a corresponding end of the nut and is provided with a limit part capable of preventing the nut from being separated from the outer ring; an accommodating cavity accommodating the spring gasket is formed in the outer ring; the spring gasket is arranged inside the accommodating cavity and is inserted into a threaded rod of a bolt assembly; and the accommodating cavity is positioned on the inner wall of the other axial end of the outer ring and is provided with an abutted surface matched with the end face of a corresponding end of the spring gasket. The nut has the advantages that: when the bolt assembly is screwed down, the nut applies a pressure on the spring gasket sleeved on the threaded rod to press the spring gasket tightly; thus, the end face of an axial end of the spring gasket and the inner wall of the accommodating cavity positioned on the other axial end of the outer ring are matched and attached to clamp the threaded rod and enhance the pretightening force between the nut and the threaded rod; and therefore, the nut cannot be easily loosened and fallen off when suffering from intensive vibration and irregular strong fluctuation, thereby prolonging service life.

Description

technical field [0001] The invention relates to a component of a fastener, in particular to a nut of a bolt assembly. Background technique [0002] At present, among the general fastening components, the nut is a common and widely used component. Such as in machinery, electricity, automobiles, railways, aviation and other fields everywhere reflect its role. However, when the nut is subjected to strong vibration and irregular strong fluctuations, the nut often loosens and falls off, which affects the normal operation and use of machinery, vehicles, etc., and when the nut is tightened with the bolt, the nut is also easily scratched. solid surface. In order to solve this problem, a combined nut has appeared on the market, which includes a nut and an outer ring, the outer ring is sandwiched between the nut and the object to be fastened, and is jointly threaded on the screw rod. The axial direction of the nut and the outer ring is One end is sleeved and riveted together, and t...

AI Technical Summary

Problems solved by technology

However, when the nut is subjected to strong vibration and irregular strong fluctuations, the phenomenon of nut loosening and falling off often occurs, which affects the normal operation and use of machinery, vehicles, etc., and when the nut and the bolt are tightened together, the nut is also easy to scratch. solid surface

In order to solve this problem, a combined nut has appeared on the market, which includes a nut and an outer ring. The outer ring is sandwiched between the nut and the object to be fastened and passed through the screw rod together. The axial direction between the nut and the outer ring One end is sleeved and riveted together, and the outer ring and the nut can rotate relatively. This kind of combined nut, the nut and the outer ring can rotate relatively, which solves the problem that the nut is not easy to scratch the surface of the fastened object when the bolt assembly is tightened. phenomenon; but this combined nut does not solve the problem that the nut is prone to loosening and falling off, and the loose nut is easy to cause the combined nut to be stressed unevenly, thereby generating a great shear force on the bolt assembly. Shorten the life of the combination nut by causing damage to the outer ring

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