A kind of anti-loosening nut and using method thereof

Abstract

The invention discloses a locknut and an application method thereof. The locknut comprises a nut body in threaded connection with a threaded shaft, wherein a wedge block groove is formed in one side,close to the threaded shaft, on the nut body; a wedge block is arranged in the wedge block groove; a pressing block groove is formed in one side, directly facing the threaded shaft, on the wedge blockgroove; a pressing block capable of moving along the radial direction of the nut body is arranged in the pressing block groove; one side of the wedge block fits to an external screw thread on the threaded shaft; the other side of the wedge block fits to the pressing block; the horizontal width of the pressing block is larger than the horizontal width of the wedge block; the thickness of one end,close to the unscrewing direction of the nut body, on the wedge block is larger than the thickness of the other end; and a pressing mechanism for driving the pressing block to apply a pressing force on the wedge block is arranged between the nut body and the pressing block. The locknut provided by the invention is good in locking effect; and during application, the locking effect can be achieved only through one nut, and the threaded shaft has no need to be lengthened, so that the space occupation of the threaded shaft on the device is reduced, and the cost is saved.

Description

technical field [0001] The invention relates to the technical field of anti-loosening nuts, in particular to an anti-loosening nut and a use method. Background technique [0002] In current equipment installations, bolt connections are used in many places. During long-term use, looseness between nuts and studs is likely to occur, resulting in failure of the connection. For safety considerations, anti-loosening of threads is a technical problem that must be solved. The double nut anti-loosening structure is a commonly used anti-loosening structure at present. For example, Chinese Patent Publication No. CN108194477A, ​​the title of the invention is a self-locking double-nut anti-loosening fastening device, which is composed of forward and reverse double-threaded bolts, fastening nuts, limit nuts, and spring washers, and the fastening nuts are close to the fasteners. , a spring washer is arranged between the limit nut and the fastening nut; the thread rotation directions of ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing double-nut anti-loosening mechanism must use two nuts at the same time, and it is necessary to reserve enough space for arrangement on the bolt or threaded shaft in advance, so that the bolt or threaded shaft needs to be lengthened. It not only increases the cost, but also increases the space occupied by bolts or threaded shafts on the device. A locknut and its use method are provided, which can effectively solve the above problems

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