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一、用途和技术特征 YD—3型矿用隔爆支腿式电动凿岩机是煤炭科学院上海研究所与无锡县煤矿电动凿岩机厂共同研制的以压气活塞为冲击机构的电动凿岩机。该机在1981年初开始设计,同年9月完成样机试制,年底完成性能试验,1982年1月至7月先后完成了地面寿命试验及井下工业性试验,达到了煤炭部在1982年4月提出的凿岩速度大于180mm/min和主要零件寿命超过1800m的要求。1982年11月在无锡召开了鉴定会议,並通过了鉴定,鉴定结论是:“YD—3型吸收了国内同类型产品优点,总体设计
First, the use and technical features YD-3 mine explosion-proof leg-type electric rock drill Coal Institute of Shanghai Institute and Wuxi Coal Mine Electric Rock Drill jointly developed by the impact of pneumatic piston as the impact mechanism of electric rock drill. The aircraft started its design in early 1981 and prototype prototype was completed in September of the same year. The performance test was completed by the end of the year and the surface life test and downhole industrial test were completed from January to July in 1982, reaching the level set by the Ministry of Coal in April 1982 Drilling speed is greater than 180mm / min and the main part of the life expectancy exceeds 1800m requirements. November 1982 appraisal meeting was held in Wuxi, and passed the appraisal, appraisal concluded that: "YD-3 type has absorbed the advantages of the same type of products, the overall design