Proximity switch speed measuring instrument

Abstract

The invention discloses a proximity switch speed measuring instrument which comprises an approximation ring which sleeves the output shaft of a measured motor, the approximation ring is provided with a plurality of uniformly distributed gaps. The side of the motor is provided with an approximation switch. The distance between the outermost ring of the approximation ring and the approximation switch is a sensing distance. The approximation switch can sense the outermost ring of the approximation ring and can not sense the gaps. With the rotation of the approximation switch, a pulse signal which represents the rotation speed is generated, according to the pulse signal read in a switch unit time, the mechanical rotation speed of a speed reducer output end flange is calculated, the rapid, convenient, and accurate detection of the mechanical rotation speed of the speed reducer output end flange and the line speed from flange output to a connection roller way can be realized, and a precise data parameter is provided for a control system.

Description

technical field [0001] The invention belongs to the technical field of on-site measurement of mechanical equipment, and relates to a proximity switch speedometer. Background technique [0002] At present, in the speed measurement and detection of the output (input) of the motor reducer, the tracking calculation is generally performed in the form of an encoder, but because the reducer is a non-standard product, the reduction ratio of the reducer used on site is often different from the theoretical design, which is As a result, it has a certain impact on devices that require precise speed control, reducing the control accuracy of the equipment. In severe cases, it affects the normal operation of the equipment and reduces the operating rate of the equipment. Moreover, the encoder has relatively high requirements for the external environment during use. Especially in systems with relatively large electrical design, electrical signal attenuation and interference sometimes occur, ...

AI Technical Summary

Problems solved by technology

[0002] At present, in the speed measurement and detection of the output (input) of the motor reducer, the tracking calculation is generally performed in the form of an encoder, but because the reducer is a non-standard product, the reduction ratio of the reducer used on site is often different from the theoretical design, which is As a result, it has a certain impact on devices that require precise speed control, reducing the control accuracy of the equipment. In severe cases, it affects the normal operation of the equipment and reduces the operating rate of the equipment. Moreover, the encoder has relatively high requirements for the external environment during use. Especially in systems with relatively large electrical design, electrical signal attenuation and interference sometimes occur, which in turn affects the accuracy and reliability of measurement data

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