(一)井下电动铲运机的研制情况 自七十年代以来,我国从国外已引进了十二种机型共二百六十余台井下铲运机,在全国二十多个金属矿山使用。近几年来,通过引进、消化和仿制,已逐步形成了具有我国特色的井下铲运机系列。但这些铲运机大多是柴油驱动,因而存在废气污染、通风成本高等缺点。1979年,北京钢铁学院和河北铜矿研究所首先将一台波兰产的LK-1型内燃铲运机改装为电动铲运机,1980年,由马鞍山矿山研究院和扬州冶金机械厂共同研制出 (A) Development of Underground Electric Scrapers Since the 1970s, China has introduced a total of more than 260 underground scrapers from 12 models abroad, and has used it in more than 20 metal mines across the country. In recent years, through the introduction, digestion and imitation, we have gradually formed a series of downhole scrapers with Chinese characteristics. However, most of these scrapers are diesel-powered, so there are disadvantages of exhaust pollution and high ventilation costs. In 1979, Beijing Institute of Iron and Steel and Hebei Copper Institute first of a Polish-made LK-1 internal combustion scraper was converted to electric scraper, in 1980, jointly developed by the Maanshan Mining Research Institute and Yangzhou Metallurgical Machinery Factory