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为了改变我国露天矿山穿孔作业依赖进口牙轮钻机的落后面貌,冶金工业部设备制造总局于1980年3月在衡阳召开YZ—35型牙轮钻机研制会议,决定由鞍山冶金矿山公司矿山研究所、衡阳冶金机械厂、长沙矿山研究院、吉林冶金电机修造厂等单位组成研制小组进行研制。经过一年半的努力,第一台样机试制成功,于1982年4月将样机运往限前山铁矿进行工业试验,通过五个月的生
In order to change the perforation operation of open-pit mines in China depends on the backwardness of imported roller cone rig, the General Administration of Machinery Industry of the Ministry of Metallurgical Industry convened the YZ-35-type cone drill development conference in Hengyang in March 1980 and decided that the mine research institute of Anshan Metallurgical Mine Company, Hengyang Metallurgical Machinery Plant, Changsha Institute of Mining, Jilin Metallurgical Machinery Factory and other units to create a research team to develop. After a year and a half of hard work, the first prototype was successfully piloted. In April 1982, the prototype was transported to the Qianshanshan Iron Mine for industrial testing. After five months’