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Shaft fastener

A technology for fasteners and shafts, which is applied in the direction of bearing components, shafts and bearings, rigid supports of bearing components, etc., can solve the problems of weakening shaft strength, difficulty in disassembly and assembly, and poor anti-loosening effect, and achieve shaft strength without Impact, anti-loose effect and reliable effect

Inactive Publication Date: 2015-10-21
CHINA NORTH VEHICLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a shaft fastener, through the mechanical anti-loosening principle, to provide a shaft fastener that can be disassembled repeatedly, solving the problem of traditional shaft mechanical The locking and positioning device has poor anti-loosening effect under the action of large axial force, difficult disassembly and assembly, and some measures weaken the strength of the shaft, etc.

Method used

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Embodiment Construction

[0024] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] Such as Figure 1-5 As shown, the fastener includes a positioning shaft (1), an axial fixing piece (2), a transverse fixing piece (3) and a wire retaining ring (4); the axial fixing piece (2) is two outer The hole diameter at one end of the axial fixing member (2) is the same as the diameter of the positioning shaft (1), and the hole diameter at the other end of the axial fixing member (2) is the same as that of the horizontal fixed The diameters of the parts (3) are the same; the horizontal fixing part (3) is an annular cylinder, and its internal aperture is the same as the diameter of the positioning shaft (1); the axial fixing part (2) is sleeved on the positioning The fixing part of the outer wall of the shaft (1); the horizontal fixing part (3) is sleeved between the other end of the axial positioning part (...

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Abstract

The invention provides a shaft fastener which is characterized in that the fastener comprises a locating shaft (1), an axial fixing piece (2), a transverse fixing piece (3) and steel cable baffle rings (4), wherein the axial fixing piece (2) consists of two annular cylinders with the identical outer diameters and different inner diameters, and is arranged at the outer wall of the locating shaft (1) in a sleeving manner; the transverse fixing piece (3) is arranged between the other end of the axial fixing piece (2) and the locating shaft (1) in a sleeving manner; a baffle ring groove A is formed in the inner wall of the other end of the axial fixing piece (2); a baffle ring groove B is formed in the outer wall of the transverse fixing piece (3); and the steel cable baffle rings (4) are arranged in the baffle ring groove A and the baffle ring groove B. The fastener is reliable in anti-loosing effect, can be repeatedly dismounted, mounted and used, has no influence to the shaft strength, and can be used for axial locking and locating with a larger axial force.

Description

technical field [0001] The invention relates to a fastener, in particular to a shaft fastener. Background technique [0002] At present, there are many types of shaft locking and positioning methods commonly used in machinery. According to the principle of anti-loosening, they can be divided into two categories: one is to achieve the effect of anti-loosening by increasing friction, such as using a locking round nut with a locking pad These measures can play a role in preventing loosening to a certain extent, but the effect is not very reliable. Its main disadvantage is that if the thickness of the lock washer is too small, it will not be able to prevent a large axial force; otherwise, it will be difficult to move the lock washer in place, and the lock washer will be prone to fatigue fracture due to repeated bending and cannot be reused many times. . The other is the mechanical anti-loosening method. The locking round nut is mechanically fixed on the shaft through connectin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C35/063F16B21/10
Inventor 周广明邹天刚刘越马立刚戈红霞郭婷桂林张金乐杨阳梁润华刘敏
Owner CHINA NORTH VEHICLE RES INST
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