Nut

A technology for nuts and outer rings, applied in the direction of nuts, threaded fasteners, connecting components, etc., can solve the problems of falling off, loose nuts, easy to scratch the surface of objects, etc. The effect of preload

Active Publication Date: 2010-05-19
杨聪辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

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Effect test

Embodiment 1

[0016] A kind of nut of the present invention, the embodiment is as follows figure 1 , 2 As shown, it includes a nut 1, an outer ring 2 and a spring washer 3. The outer edge of one axial end of the nut 1 is provided with a convex ring 11, and the corresponding end of the outer ring 2 is sleeved outside the convex ring 11. In the accommodating groove 21 of the spring washer 3, the ends of the corresponding ends of the outer ring 2 are riveted inward to form a limit ring 23, so that the convex ring 11 is restricted from moving in the accommodating groove 21, which can prevent the nut 1 from separating from the outer ring 2 . The spring washer 3 is arranged in the accommodating groove 21 and passes through the screw rod of the bolt assembly. The inner wall of the accommodating groove 21 at the other axial end of the outer ring 2 is provided with an end face corresponding to the corresponding end of the spring washer 3 . The matching fitting surface 211, the end face of one end ...

Embodiment 2

[0019] A nut of the present invention, such as image 3 , 4 As shown, the difference between the second embodiment and the first embodiment is only that: the inner wall of the accommodating groove 21 located at the other axial end of the outer ring 2 is provided with a fitting surface 212 which is adapted to the end face of the corresponding end of the spring washer 3 , the fitting surface 212 is a plane, and the end face of one end of the spring washer 3 that fits with the fitting surface 212 is a plane that matches the fitting surface 212 .

[0020] The nut of the present invention can be applied to different fields such as machinery, electric power, automobile, railway, aviation and the like. In the present invention, the hollow cylindrical sheath 22 can also have an extension portion 24 extending from the other axial end of the outer ring 2, so that when the nut is used on a tire nut, the extension portion 24 can be inserted into the tire screw and the tire steel ring. I...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B37/00
Inventor 杨聪辉
Owner 杨聪辉
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