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潜孔钻机用冲击器和钻头(统称为钻?)是钻机的凿岩装置,也是钻机的消耗备?。潜孔钻具的工作效率和使用寿命直接关系到潜孔钻机的效率和消耗。目前,国内冲击器寿命一般为1500米左右,钻头寿命高的不过100余米,低的为数十米。近几年来在国内几个露天铁矿试验结果证明,大型潜孔钻机是一种穿凿矿岩效率较高的钻机,它的生产效率较磕头钻(钢绳冲击钻)高约一倍。但是,因为潜孔钻机的钻
DTH drilling machine with the impactor and drill (collectively referred to as drilling?) Drilling rig rock drilling equipment, but also drilling rig consumption ?. Down-hole drilling tool work efficiency and service life is directly related to the efficiency and consumption of down-hole drilling rig. At present, the domestic life of the impactor is generally about 1,500 meters, but the high life of the bit 100 meters, low for tens of meters. In recent years, several open-pit iron ore experiments in China proved that the large-scale down-hole drilling rig is a drilling rig with high efficiency of drilling chisel ore and its production efficiency is about twice as high as that of kowtow drill. However, because of the drilling of a downhole drill