伺服电机间歇异常噪声问题研究

微特电机 ›› 2022, Vol. 50 ›› Issue (7): 58-61.

伺服电机间歇异常噪声问题研究

贾惠玲¹, 钟成堡^1,2, 文智明^1,2, 张荣婷^1,2

1.珠海格力电器股份有限公司,珠海 519070;
2.广东省高性能伺服系统企业重点实验室,珠海 519070

收稿日期:2022-04-22 出版日期:2022-07-28 发布日期:2022-08-15
作者简介:贾惠玲(1995—),女,学士,助理工程师,研究方向为机电产品的减振降噪研究。
基金资助:
广东省高性能伺服系统企业重点实验室项目(2020B121202017)

Research on Intermittent Abnormal Noise of Servo Motor

JIA Huiling¹, ZHONG Chengbao^1,2, WEN Zhiming^1,2, ZHANG Rongting^1,2

1. GREE Electric Appliances, Inc. of Zhuhai,Zhuhai 519070, China;
2. Guangdong Provincial Key Laboratory of High Performance Servo System,Zhuhai 519070, China

Received:2022-04-22 Online:2022-07-28 Published:2022-08-15

摘要/Abstract

摘要： 针对某型号伺服电机在运转时出现的间歇异常噪声问题,测试分析了该电机噪声的频域与时频域特性,并结合电机对拖噪声测试、电流及光电编码器信号的采集分析,确定该异常噪声问题产生的机理,电机转轴每旋转一周,光电编码器输出间隔固定的两次异常脉冲信号,通过伺服驱动器产生异常电流,进而产生间歇的异常电磁噪声,由电机壳体向外辐射。通过更换光电编码器解决了该异常噪声问题。

关键词: 伺服电机, 间歇异常噪声, 时频域, 光电编码器

Abstract: Aiming at the intermittent abnormal noise problem of a certain type of servo motor during operation, the frequency-domain and time-frequency-domain characteristics of the motor noise were tested and analyzed. Combined with the motor towing noise test, current and photoelectric encoder signal acquisition and analysis, the mechanism of the abnormal noise problem was determined.The photoelectric encoder outputed two abnormal pulse signals with fixed interval every cycle of the motor shaft rotation.The abnormal current was generated through the servo driver, thereby generating intermittent abnormal electromagnetic noise and radiating from the motor shell. The abnormal noise problem was solved by replacing the photoelectric encoder.

Key words: servo motor, intermittent abnormal noise, time-frequency domain, photoelectric encoder

中图分类号:

TM383.4

贾惠玲, 钟成堡, 文智明, 张荣婷. 伺服电机间歇异常噪声问题研究[J]. 微特电机, 2022, 50(7): 58-61.

JIA Huiling, ZHONG Chengbao, WEN Zhiming, ZHANG Rongting. Research on Intermittent Abnormal Noise of Servo Motor[J]. Small & Special Electrical Machines, 2022, 50(7): 58-61.

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