Shock absorber of rotary encoder

Abstract

The invention relates to a shock absorber of a rotary encoder, which comprises straight sections and bending sections, and is characterized in that at least two bending sections are arranged between two straight sections, can move upwards, downwards, forwards, backwards, leftwards and rightwards and can borrow deviations from a plurality of directions. The middle parts of the straight section are provided with arch sections which are provided with holes and play roles of screw troughs. The shock absorber can eliminate multi-directional eccentric vibrations generated between a shaft of the rotary encoder and a motor shaft, can borrow the deviations from a plurality of directions and reduce elasticity coefficients, and has the advantages of simple structure and low cost.

Description

technical field [0001] The invention relates to a damping device of a rotary encoder, which belongs to the technical field of encoders. Background technique [0002] At present, rotary encoders can be divided into incremental type and full amount type according to the encoding method, that is, absolute type; according to the sensing method, they can be divided into switch type, that is, contact type and photoelectric type, that is, non-contact type. [0003] Incremental encoders, full-scale encoders, switch sensor encoders, photoelectric sensor encoders, and other sensor form encoders, in addition to switch sensor encoders and photoelectric sensor encoders, others can also Magnetic steel plus reed switch, magnetic steel plus Hall element, etc. are used for sensing, but the encoders used for magnetic steel reed switch and magnetic steel Hall element sensing have poor stability, and few people use them in practice. . [0004] Although there are many types of existing rotary ...

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Problems solved by technology

[0003] Incremental encoders, full-scale encoders, switch sensor encoders, photoelectric sensor encoders, and other sensor form encoders, in addition to switch sensor encoders and photoelectric sensor encoders, others can also Magnetic steel plus reed switch, magnetic steel plus Hall element, etc. are used for sensing, but the encoders used for magnetic steel reed switch and magnetic steel Hall element sensing have poor stability, and few people use them in practice.

[0004] Although there are many types of existing rotary encoders, and there is a lot of room for selection, their common problem is that there is only one eccentric direction for the vibration damping device of the existing rotary encoders to eliminate vibration, which is easy to cause the rotary encoder The structure is damaged, the encoder shaft and the motor shaft are connected eccentrically, and the high-speed rotation will cause deviation in multiple directions

If only one direction can be offset, the offset cannot be eliminated from other directions, which will generate false pulse signals or reduce the service life of the bearing. The higher the resolution of the rotary encoder, the more this phenomenon will be. obvious

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