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一、研制目的地方小煤矿岩石巷道掘进机械具有风动设备的很少,多用手工打眼,月进尺都在30m以下,煤产量上不去,而且不稳定。我厂与煤炭科学研究总院上海分院共同研制的YD-2型电动凿岩机自1979年鉴定以来,对提高小煤矿的掘进速度,保证煤产量起到了一定的作用。但它的冲击能较小,仅适用f8以下中硬岩石的巷道掘进,所以很需要研制一种冲击能大,能适用于硬岩巷道掘进的掘进机械,与YD-2型组成系列,使地方小煤矿达到稳定高产。另外也可为大中型煤矿提供一种辅助凿岩工具,用于半煤岩巷和局部岩石工程,以提高这类工程的经济效益。这就是YD-3型电动凿岩机的研制目的。
First, the development of research purposes Small coal mine rock roadway tunneling machinery has a small amount of pneumatic equipment, multi-purpose manual drilling, the monthly footage are below 30m, coal production does not go up, and unstable. YD-2 electric rock drill jointly developed by our factory and Shanghai Branch of China Coal Research Institute has been appraised since 1979 and has played a certain role in improving tunneling speed and ensuring coal output. But its impact can be small, only f8 in the hard rock roadway tunneling, it is necessary to develop a large impact energy, can be applied to hard rock roadway heading machine, and YD-2-type series, so that the local Small coal mines to achieve stable and high yield. In addition, it can also provide an auxiliary rock drilling tool for large and medium-sized coal mines to be used for semi-coal rock roadway and partial rock engineering so as to enhance the economic benefits of such projects. This is the purpose of YD-3 electric rock drill.