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轴承是电机中的重要零件之一,最好的电机如没有性能可靠的滚动轴承也表现不出电机应有的卓越性能,可见电机和轴承之间,确有唇齿相联的关系。也可见电机噪声和轴承噪声有一定的关系,下面分别谈一下。电机噪声产生的原因很多,几年来国内在这方面虽然作了一些试验工作,但尚未系统掌握它的规律。日本有篇文章《电机中球轴承的噪声》系统地介绍了小型电机产生噪声的原因。通过对电机进行频率分析指出,小型三相交流感应电动机的噪声分以下五种,除此以外端盖刚性较差的电机,端盖的共振噪声也占有一定成份(表1)。
Bearing is an important part of the motor, the best motor, such as performance without reliable rolling bearings also showed no remarkable performance should be motor, we can see the motor and bearing, there is indeed the relationship between the lips and teeth. Also see motor noise and bearing noise have a certain relationship, the following separate talk about. There are many reasons for motor noise. In recent years, although some experiments have been done in this area in our country, we have not systematically mastered its laws. An article in Japan, “Motor Ball Bearing Noise,” systematically describes the causes of noise generated by small motors. According to the frequency analysis of the motor, the noise of the miniature three-phase AC induction motor is divided into five types. In addition, the motor with a poor rigidity of the end cover and the resonance noise of the end cap also occupy certain components (Table 1).