论文部分内容阅读
凿岩机主要用于矿山巷道掘进和采矿凿岩,也是铁路、水利和国防石方工程中的重要工具。由于凿岩机在高频高速重负荷条件下工作,零件不仅承受高频高速的冲击扭转负荷,而且还在矿尘、水雾和润滑不良等条件下经受剧烈的滑动与滚动摩擦。所以,凿岩机易损零件较多(8～9种零件),其使用寿命较短,一般都在进尺500～1700米之间,由于零件损坏较快,不仅严重影响凿岩机效能的发挥,增加矿工的劳动强度,而且浪费大量钢材和工时。因此,进行凿岩机易损件寿命攻关的试验工作,就显得格外迫切和重要。在毛主席革命路线指引下,为了尽快提高凿岩机质量,使零件使用寿命达到和超过国外先进水平,沈风厂、哈尔滨工业大学、湖南锡矿山矿务局等单位,共同协作,大搞厂校矿三
Rock drills are mainly used in mine roadway excavation and mining rock drilling, but also an important tool in railway, water conservancy and national defense stonework. Because the rock drill works under high-frequency, high-speed and heavy-load conditions, the parts are not only subjected to high-frequency and high-speed impact torsional loads, but also subjected to severe sliding and rolling friction under conditions of mine dust, water mist and poor lubrication. Therefore, the rock drill more vulnerable parts (8 to 9 kinds of parts), its service life is short, usually in the footage from 500 to 1700 meters, due to rapid damage to parts, not only seriously affect the performance of rock drill to increase the miners Labor intensity, but also a lot of waste of steel and working hours. Therefore, it is extremely urgent and important to carry out the test work on the life-span of rock drill wearing parts. Under the guidance of Chairman Mao’s revolutionary line, in order to improve the quality of rock drill as soon as possible and to make the service life of the parts reach and surpass the advanced international level, Shenfeng Plant, Harbin Institute of Technology and Hunan Tin Mine Mining Bureau and other units work together to make great efforts in plant and mines three