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钻凿岩石的主要机械是凿岩机和每秒钟冲击30～40次的气动冲击器。所有凿岩机械的使用效果,因最重要的昂贵零件的迅速磨损而受到影响。这与凿岩机械的特殊工作条件和承载条件有关。用于钻凿炮孔和钻孔的钻机的使用特点是:湿度高,矿山空气中含尘多,钻凿磨蚀性岩石,矿井水的污染及化学腐蚀,矿岩硬度变化范围大。因此,作用在零件各截面和工作表面上的大频率动载荷的变化范围也相当宽。这时,产生的冲击一波导过程改变了负载最大的各零件的配合特性,配合中设计制造的过盈处形成了瞬时间隙,而设计制造的间隙处却产生了瞬时过盈。所以,对配合零件的大多数材料和形状
The main machines for rock drilling are rock drills and pneumatic impactors that impact 30 to 40 times per second. The use of all drilling machines is affected by the rapid wear and tear of the most important expensive parts. This is related to the special working conditions and bearing conditions of the drilling machine. The drilling rig used for drilling boreholes and drilling holes are characterized by high humidity, dust in the mine air, abrasive rock drilling, water pollution and chemical corrosion in mines. The hardness of ore rock varies widely. As a result, the dynamic range of large-frequency loads acting on each section of the part and the working surface is also quite wide. At this time, the resulting impact-waveguide process changes the mating characteristics of the most loaded parts, creating an instantaneous gap at the interference point designed and manufactured in cooperation with the instantaneous interference at the designed gap. So, for most parts and shapes of mating parts