矿用牙轮钻机及钻具专题学术交流会于去年10月在鞍山召开。会议着重讨论了牙轮钻机及钻具的设计、使用、实验测试和理论研究等方面的问题及今后的发展方向。大家认为:39台φ250和2台φ310国产牙轮钻机在矿山生产中发挥了较大作用,但辅助机构差,配套件达到要求,钻头寿命低,至使钻孔成本较高…。会上发表了一些论文,针对目前的问题和发展趋势,代表们提出了许多好的建议,这对钻机 Mining cone drills and drilling special academic exchange was held in Anshan in October last year. The conference focused on the design, use, experimental testing and theoretical research of roller rigs and drilling tools, and the future development direction. We think: 39 φ250 and 2 sets of φ310 domestic roller cone drilling rig play a greater role in the mine production, but the auxiliary mechanism is poor, matching the components to meet the requirements of low bit life, drilling costs to make high .... At the meeting published a number of papers, in view of the current problems and trends, the delegates made many good suggestions, which drill