A gear fitting shaft fixing device

Abstract

The invention discloses a tooth-cooperated shaft fixing device, which comprises an inner sleeve and an outer sleeve, wherein the external diameter of the inner sleeve is smaller than or equal to the internal diameter of the outer sleeve; the outer wall of the inner sleeve is at least provided with an axial groove; the inner wall of the outer sleeve is provided with a convex tooth matched with the groove in the outer wall of the inner sleeve; two ends of the outer wall of the outer sleeve are respectively provided with an annular key slot; annular fasteners are respectively arranged in two key slots. Compared with the prior art, the tooth-cooperated shaft fixing device disclosed by the invention has the beneficial effects that the inner sleeve is extruded by the convex tooth of the outer sleeve to cause the inner sleeve to be retracted, and a cylindrical shaft and a mechanical construction member fixedly arranged on the cylindrical shaft can be effectively prevented from generating relative circumferential movement. Meanwhile, the production cost is low, and the strength of the cylindrical shaft can not be lowered.

Description

technical field [0001] The invention relates to a fixing device for fixing mechanical components such as gears and pulleys on a cylindrical shaft, in particular to a gear-fitting shaft fixing device. Background technique [0002] Existing mechanical components such as gears and pulleys are usually fixed on the cylindrical shaft through keys and keyways, so that the mechanical components such as gears and pulleys rotate together with the cylindrical shaft, which can effectively prevent mechanical components such as gears and pulleys from colliding with the cylindrical shaft. The cylindrical shafts undergo relative circumferential movement. [0003] However, this fixing method needs to process keyways on the cylindrical shaft and mechanical components such as gears and pulleys. On the one hand, it increases the processing cost; The mechanical strength of mechanical components such as gears and pulleys shortens their service life. [0004] Therefore, it is necessary to design...

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned problems to be solved by the present invention are aimed at the above-mentioned prior art that not only has high processing costs, but also causes the mechanical strength of mechanical components such as cylindrical shafts, gears, and pulleys to be reduced, and provides a low-processing Tooth-fitting shaft fixtures that reduce the mechanical strength of cylindrical shafts and mechanical components such as gears and pulleys

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