基于电流信号的振动电机常见故障分析

发布时间：2018-05-17 02:09

本文选题：振动电机 + 转子断条　；参考：《中国科技论文》2017年16期

【摘要】：为了对振动电机的常见故障类型作出预测和判断,通过基本电磁原理结合振动电机的结构特征,分别计算了振动电机在正常、转子断条和气隙偏心时定子电流的特征频率。结果表明:振动电机正常运行时定子电流中会产生f_1±f_r的特征频率,转子断条时会同时产生f_1±f_r和(1±2s)f_1的特征频率,气隙偏心时在其定子电流中会产生f_1±f_r的特征频率且其幅值与偏心程度成正比,通过监测振动电机的定子电流可以判断其工作状态、故障类型以及故障程度。
[Abstract]:In order to predict and judge the common fault types of vibrating motor, the characteristic frequency of stator current in normal, rotor broken bar and air gap eccentricity is calculated by combining the basic electromagnetic principle with the structural characteristics of vibration motor. The results show that the characteristic frequency of fs _ 1 卤fs _ r will be produced in stator current of vibrating motor under normal operation, and the characteristic frequency of f _ T _ 1 卤F _ (r) and (1 卤) 2s)f_1 will be produced simultaneously when the rotor is broken. When the air gap is eccentric, the characteristic frequency of f _ 1 卤f _ S _ r will be produced in its stator current, and its amplitude is proportional to the eccentricity. By monitoring the stator current of the vibrating motor, the working state, the type of fault and the degree of fault can be judged.
【作者单位】：西安建筑科技大学机电工程学院;
【基金】：高等学校博士学科点专项科研基金资助项目(20126120110009) 陕西省科技攻关项目(2013K07-09) 陕西省教育厅专项基金资助项目(2013JK1032)
【分类号】：TM307

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