目前,矿用磁力启动器的操作机构都不同程度地存在着一些问题,如停送电时操作手把太死,不好送电,手把间隙过大乱晃动,无法判断送电是否到位或是否真正停电。因此,操作手把的问题不但给停送电时带来麻烦,而且如果操作不熟练,极易损坏隔离开关。由于隔离开关工作在负荷较大的情况下,如果手把不能完全打到位,会导致隔离开关接触不良或接 At present, the operation mechanism of mine magnetic starter has varying degrees of existence of some problems, such as stopping the power when the operating handle is too dead, not good power transmission, the handgrip gap is too large and disorderly shaking, can not determine whether the power is in place or not Real power outage. Therefore, the operation of the handlebar not only give trouble to send electricity, and if unskilled operation, easily damaged switch. As the isolation switch work in the case of large load, if the handle can not be fully hit in place, will lead to poor isolation switch or access