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1.电机故障情况和维护上的着眼点根据运用后发生故障的时间可分早期故障期、偶然故障期和磨耗故障期。情况表明,运用后出现问题的时期在一年以内的占大半,其中半数以上是机械方面的问题。在机械问题中,滑动部分的因素又占大半。不过,出现问题并非都是故障,其中有相当一部分是由于对声音、振动、温度等的主观判断标准不同所致。从上述情况来看,电机的早期故障期在一年以内,其内容集中在滑动部分。从维护角度可将电机的结构作如下的分类。
1. Motor fault conditions and maintenance focus According to the time after the failure can be divided into early failure, accidental failure and wear failure period. The situation shows that the period after the application of problems occurred accounted for the most in less than a year, of which more than half were mechanical problems. In mechanical problems, the sliding part of the factor accounted for more than half. However, problems are not always faulty. A considerable part of them are caused by the subjective judgment of sound, vibration and temperature. From the above situation, the early motor failure period of less than one year, its content concentrated in the sliding part. From the maintenance point of view, the structure of the motor can be classified as follows.