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由于铁道牵引电动机常常运行于剧烈的机械振动及负载频繁变化之中,如果定子主、付极结构不当,电机运行一段时间后,线圈与铁芯之间就会松动,产生相对的位移,逐渐出现线圈绝缘层磨损,从而导致主、附极接地的故障。据一些机务段的统计,ZQDR-410和ZQ650-1两种电机,在未实施定子一体化前,主、附极接地占电机故障总数的1/4—1/3,并且有逐年上升的趋势,成为这两种电机的主要故障之一。为防止、减少此种故障,提高电机运行的可靠性,采用了定子一体化结构。我厂于79年就对此项工作开始进行探索
Since railway traction motors often operate in severe mechanical vibration and frequent load changes, if the stator and the pole are improperly constructed, the motor will be loosened after a period of operation and the relative displacement will gradually occur Coil insulation wear, resulting in the main, with a very grounded fault. According to the statistic of some locomotive depots, the main and auxiliary poles account for 1 / 4-1 / 3 of the total number of motor faults before implementing the stator integration in ZQDR-410 and ZQ650-1, and there is a tendency of increasing year by year , Became one of the major faults in both types of motors. To prevent, reduce such failures and improve the reliability of motor operation, the use of the stator integrated structure. I plant in 79 years on this work began to explore