Special-shaped shaft of motor encoder

Abstract

The invention relates to a special-shaped shaft of a motor encoder. The special-shaped shaft comprises a thread connecting part, an encoder fixing part and a motor fixing part, wherein the thread connecting part comprises external threads, the encoder fixing part comprises an encoder shaft sleeve fixing section and a special-shaped circular truncated cone close to the motor fixing part, the special-shaped circular truncated cone comprises three U-shaped holes which are uniformly distributed, and the motor fixing part comprises three circular holes which are uniformly distributed. The special-shaped shaft has the beneficial effects that the structure form of an original special-shaped shaft of the encoder is mainly changed, and is mainly reflected as follows: (1) the special-shaped circular truncated cone is additionally arranged; and (2) a clamping fastener consisting of a gasket and an elastic washer is used in a transitional section, so that the encoder loosens due to long-term use can be effectively avoided. The special-shaped shaft has the advantages of simple structure, low cost and good using effect.

Description

technical field [0001] The invention relates to the technical field of mechanical installation, in particular to a special-shaped shaft suitable for installing a large shaft sleeve type encoder. Background technique [0002] At present, the installation and fixing method of the large shaft sleeve type encoder adopted by the known motor or mechanical device is: the shaft sleeve of the encoder is fixed on the direct shaft drawn by the motor or mechanical device, and the encoder body is fixed on the shaft by a spring plate. on the motor or machine body. When the motor or mechanical lead-out device rotates, the direct shaft of the motor or mechanical lead-out device rotates, and drives the encoder shaft sleeve to rotate, and the encoder body is stationary to meet the functional requirements such as speed measurement. However, for large vibration or impact loads, this fixing method is not firm, and the fixing screws of the encoder shaft sleeve are prone to loosening, resulting i...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the encoder detection failure caused by the vibration of the encoder shaft sleeve in the prior art, and to provide a shaft sleeve type motor encoder special-shaped shaft. The encoder fixed by the special-shaped shaft is more efficient. It solves the problem of loosening of the encoder shaft sleeve caused by shock and vibration. The technical solution adopted is: a special-shaped motor encoder shaft, which is characterized in that the special-shaped shaft includes a threaded connection part and an encoder fixing part. and the motor fixing part, the threaded connection part includes external threads, the encoder fixing part includes an encoder shaft sleeve fixing section and a special-shaped round table close to the motor fixing part, and the special-shaped round table includes three evenly distributed U shaped holes, the motor fixing part includes three evenly distributed round holes

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