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在工矿企业里,车间内的运输任务主要依靠行车来完成。然而行车上所使用的各种抱闸线圈常因电磁铁张口过大或卡死,以致吸合不上而烧毁。不但严重地影响生产,而且也给维修工人带来很大的工作量。根据我们对淮南矿务局望峰岗机电修配厂桥式行车所用的抱闸线圈的使用情况统计,卷扬机所用的MZD_1-300型抱闸线圈烧毁最多,其次是大车行走电机所用的MZD_1—200型抱闸线圈。究其原因,绝大多数都是由于线圈长时间过流而烧损的。为此,我
In the industrial and mining enterprises, the transportation tasks in the workshop mainly rely on driving to complete. However, driving the use of a variety of brake coil often due to the electromagnet mouth too large or stuck, so that not pull on and burned. It not only seriously affects the production but also brings a lot of workload to maintenance workers. According to our statistics on the use of brake coils for bridge driving in Wangfenggang Mechanical and Electrical Equipment Factory in Huainan Mining Bureau, the coil of MZD_1-300 used in windlass was burned most, followed by the MZD_1-200 Type brake coil. The reason, the vast majority are due to the coil over-current and burn out. For this, me