Rotor outer diameter detection device

Abstract

The invention discloses a rotor outer diameter detecting device. The rotor outer diameter detecting device comprises a supporting mechanism, at least one pair of spring-type measuring mechanisms and sensors, wherein a rotor is rotatably arranged on the supporting mechanism; two spring-type measuring mechanisms in each pair of spring-type measuring mechanisms are arranged symmetrically in the radial direction of the rotor, the two spring-type measuring mechanisms in each pair of spring-type measuring mechanisms are in contact with the outer circle surface of the rotor, and the rotor rotates todrive each pair of spring-type measuring mechanisms to produce expansion and contraction quantity; and the sensors are installed on each pair of spring-type measuring mechanisms, and the sensors are used for obtaining the expansion and contraction quantity of each pair of spring-type measuring mechanisms and converting the expansion and contraction quantity into an outer diameter value. Compared with the prior art, the measurement error can be reduced by manually measuring the outer diameter of the rotor through an outer diameter micrometer, and thus the accuracy of measuring the outer diameter of the rotor can be improved.

Description

technical field [0001] The invention relates to the technical field of rotor measurement, in particular to a rotor outer diameter detection device. Background technique [0002] The motor adopts the method of rotor and stator cooperation. The gap between the outer circle of the rotor and the inner cavity of the stator is related to the size of the air gap of the whole machine. The larger the air gap, the greater the reluctance between the motor stator and rotor, and the motor converts electrical energy into The conversion rate of mechanical energy is lower. There is a taper on the surface of the rotor, and the air gap of the motor is uneven, resulting in uneven force on the rotor of the motor, abnormal vibration and abnormal noise. Therefore, the measurement of the outer diameter of the rotor is very important. [0003] The size of the existing motor rotor is measured with an outer micrometer, and the outer micrometer is used to measure the "upper, middle, and lower" three ...

AI Technical Summary

Problems solved by technology

There is a taper on the surface of the rotor, and the air gap of the whole motor is uneven, resulting in uneven force on the rotor of the motor, abnormal vibration and abnormal noise. Therefore, the measurement of the outer diameter of the rotor is very important.

[0003] The size of the existing motor rotor is measured with an outer micrometer, and the outer micrometer is used to measure the "upper, middle, and lower" three positions of the rotor. The measurement method uses the tester to manually fix the rotor, and there is no monitoring of the roundness of the entire rotor. There will be large errors in positioning and measurement using an outer micrometer, and the measurement accuracy is low

In addition, it is necessary to analyze the measurement data after the measurement. After the existing measurement of the outer diameter of the rotor, according to the standard, a single measurement data is manually compared and judged. Without systematic processing and data analysis of the data, there will be manual misjudgment, resulting in Uncontrollable quality, poor reliability

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