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由马鞍山矿山研究院、扬州冶金机械厂、铜录山铜矿共同研制的WJ—1.5D型和由马鞍山矿山研究院、南昌通用机械厂、铜录山铜矿共同研制的WJ—76型电动铲运机于1984年7月15～18日在铜录山铜矿通过技术鉴定。两台样机全部采用国产元件,主要性能参数与国外同类机型相近,是一种高效率、低能耗、无污染和低嗓音的先进出矿设备。它们均由380伏交流电源供电,操作电压为24伏,液压卷缆装置使电缆的收放与机器的运行
The WJ-1.5D model developed jointly by the Ma’anshan Mining Research Institute, Yangzhou Metallurgical Machinery Factory and Tonglushan Copper Mine and the WJ-76 electric shovel jointly developed by the Ma’anshan Mining Research Institute, Nanchang General Machinery Plant and Tonglushan Copper Mine Transport aircraft in July 1984 from 15 to 18 in Tongsusan copper through technical appraisal. Both prototypes are made of domestic components, the main performance parameters similar to similar models abroad, is a high efficiency, low energy consumption, pollution-free and low voice of advanced mining equipment. They are powered by a 380 VAC power supply with an operating voltage of 24 volts. The hydraulic cabling unit allows cable retraction and operation of the machine