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2米以下的卷扬机,一般不配带动力制动系统,它的减速、低速运行全靠机械闸来控制。我矿付井掘进采用了一套1.6米的卷扬机,其吊桶在下放通过井口、转水站、吊盘等处时非用机械闸控制减速、低速运行不可。其缺点是闸皮磨损相当严重,一付新换的闸皮用不到一个星期就得更换;同时,运行也不稳定,严重影响着设备的寿命。针对上述情况,我们在实践中不断摸索、改进,将一台2KVA行灯变压器(条件许可时,可选用较大容量的行灯变压器)进
2 meters below the winch, generally not equipped with a dynamic braking system, its deceleration, low-speed operation by mechanical brake to control. Mine mine well using a set of 1.6 m winch hoist, the buckets in decentralization through the wellhead, transfer station, hanging plate and other places without mechanical brake control deceleration, low-speed operation can not. The disadvantage is that the brake lining is quite serious, and a new brake shoe has to be replaced in less than a week. In the meantime, the operation is also unstable, which seriously affects the life of the equipment. In response to the above situation, we continue to explore in practice, improved, a 2KVA line transformer (conditions permit, the choice of larger capacity line transformer) into