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2BM3000/1520型矿井提升机是我国早期仿苏产品,只有一套制动机构,无后备制动设施。在使用中,当其制动力矩不足时往往造成跑罐、顿罐事故,危及人身和设备安全。该型提升机两个卷筒上的两组闸瓦共用一对闸腿。如果两组闸瓦压在两个卷筒制动圈上的力不一致,则制动力矩也不一样。事实上,提升机由于经常变更提升水平,需要进行调绳操作,这样死卷筒卜的闸瓦工作次数比活卷筒的要多。因而其
2BM3000 / 1520 mine hoist is the early imitation of su-products in our country, only a set of brake mechanism, no backup brake facilities. In use, when its braking torque is not enough often lead to running tank, tank accidents, endangering the safety of personal and equipment. The two groups of brake shoes on the two drums share a pair of brake legs. If the two sets of brake shoe pressure in the two brake coil force inconsistency, the braking torque is not the same. In fact, the hoist changes the hoisting level often, need to carry out the rope adjusting operation, so that the brake shoe does not work more than the live reel. Thus it