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九二钻机是我国硬岩竖井开凿工程的大型设备,C_2型球齿滚刀是钻机上直接用于破岩凿井的工具。因而球齿滚刀质量的好坏直接关系到钻进速度,钻井周期和建井费用。过去,由于该刀具制造成本高,使用寿命低,消耗量大,因而成了竖井开凿工程建井速度的一个重要问题。为了提高我国硬岩竖井的开凿能力,发展我国的钻井事业,发展国产刀具,节约外汇。在有关部门主持下,由洛阳矿山机械研究所,南京遵义机械厂等七单位联合开展了“九二四OC_2型球齿
92 drilling rig is hard rock shaft excavation project of China’s large equipment, C_2-type hob gear is used directly on rock drilling drilling tools. Therefore, the quality of the hob is directly related to the drilling speed, drilling cycle and well cost. In the past, due to the high cost of the tool manufacturing, low service life, and large consumption, it became an important issue in shaft drilling speed. In order to improve the drilling capacity of hard rock shafts in our country, we should develop our drilling business, develop domestic knives and save foreign exchange. Under the auspices of the relevant departments, the Luoyang Mining Machinery Research Institute, Nanjing Zunyi Machinery Factory and other seven units jointly launched the "9214 OC_2-type ball