紧急停车

• Abstract : a safety monitor and protective device of hoist in local coal mine is introduced . it can indicate the movement and the position of the hoist vessel in the shaft directly , send out a signal slowing down the vessel in time . when the vessel is over - rolled up , the hoist will be braked automatically and immediately
  文摘:本文介绍了一种地方煤矿提升绞车安全监测与保护装置，能直观地指示提升容器的运动及在井筒中的位置，设置了比较完善的电器保护系统，能及时发出减速信号，当发生过卷时能自动紧急停车。