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目前国内外气腿式凿岩机的发展,在结构上都基本上实现了操作集中于柄体这样一有利于单人单机作业的条件。采用的气腿调压阀的原理不外乎降压型调压或节流型调压两种。我国已定型的气腿式凿岩机全都采
At present, the development of air leg rock drill at home and abroad has basically realized the condition that the operation is concentrated on the handle body in the structure which is beneficial to single-person single-unit operation. The principle adopted by the air leg pressure regulating valve is nothing more than step-down regulator or throttling regulator two. China has been stereotypical air leg rock drill all mining