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绪言 在采矿工业中有用矿物开采和巷道掘进的钻眼工作是一个主要的和相当繁重的工序,缩短这一工序的时间,对加快掘进速度、缩短基本建设年限、提高采矿劳劫生产率和降低采矿成本有着十分重要的现实意义。 在硬岩中进行钻眼工作一般是利用压气冲击式凿岩机。 压气冲击式凿岩机是利用动力效率十分低的一种钻眼机械,其钻眼总效率不超过2.0～3.0％,也就是说,如以输入的电能能量为100,经过电动机皮带传动至压气机,被压出之压气在压气管路中的压力损失和风量损失,进入凿岩机后所引起的能量损失,钎子
INTRODUCTION Drilling of useful minerals and roadway boring in the mining industry is a major and rather cumbersome process that shortens the duration of this process and has the potential to speed up boring, reduce capital life, increase mining productivity and reduce mining Cost has very important practical significance. Borehole drilling in hard rock typically uses a pneumatic rock drill. Compaction hammer drill is the use of a very low power efficiency of a drilling machine, the total efficiency of drilling less than 2.0 to 3.0%, that is to say, as the input electrical energy of 100, through the motor belt to the compressor, Compressed out of the pressure in the gas pipeline in the pressure loss and loss of air flow into the rock drill after the energy loss caused by the brazing