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活塞是凿岩机的主要零件之一,又是凿岩机中最易损坏的零件。它在气缸中以很高的速度做往复和回转两种运动,频繁冲击钎杆并带动钎杆转动,承受着冲击和扭转载荷。它的质量好坏,影响到凿岩机效能的充分发挥和矿山的掘进效率。遵照伟大领袖和导师毛主席关于“一切产品,不但求数量多,而且求质量好,耐穿耐用”。的教导,在一机部,甘肃省委和甘肃省机械局的领导和关怀下,我厂和西安交通大学、北京矿务局大台煤矿等单位共同开展了活塞寿命的攻关
The piston is one of the main parts of the rock drill and is the most vulnerable part of the rock drill. It performs two kinds of reciprocating and rotating movements at high speed in the cylinder, frequently impacts the drill rod and drives the drill rod to rotate, and withstands impact and torsional loads. Its quality is good or bad, affecting the full play of the efficiency of the rock drill and the efficiency of mine excavation. According to the great leader and mentors Chairman Mao’s “All products, not only a large quantity, but also good quality, durable and durable.” With the guidance of the Ministry of Industry, Gansu Provincial Committee and the Gansu Provincial Machinery Bureau, our factory and Xi’an Jiaotong University and Beijing Coal Mining Bureau Datai Coal Mine jointly developed the Piston Life Cycle Study.