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本文作者根据多年工作经验,对真空磁力启动器在频繁分合闸情况下容易产生故障的原因进行总结分析,总结了主井装载硐室给煤机及装载皮带开关的维护保养经验。提出用无触点开关替代真空磁力启动器,并对无触点开关的原理及结构进行阐述,从根本上解决真空磁力起动器频繁分合闸故障率高的问题,结合姚桥煤矿实际使用效果,从理论及实践上证明无触点开关具有推广应用价值。
Based on many years of working experience, the author summarizes the reasons that the vacuum magnetic starter is prone to malfunction under the condition of frequent opening and closing, and summarizes the maintenance experience of the main shaft loader coal feeder and the loading belt switch. The non-contact switch is proposed to replace the vacuum magnetic starter, and the principle and structure of the contactless switch are explained. The problem of high failure rate of the vacuum switch is solved fundamentally. Combined with the actual use effect of Yaoqiao Coal Mine , From theory and practice to prove non-contact switch has the promotion and application value.