【摘要】 作者通过对牙轮钻头工况、轴承受力状况以及轴承结构特点诸方现状分析,结合轴承单元强度和磨损实验结果,得出可从减小滚珠直径的结论,从而为改革钻头轴承结构探索出一条路子。更多还原

【Abstract】 The writer, after studying and analysing the working conditions of cone bits, the under stress and structural features of bearings, combining with the experimental results of unit strength and wear of the bearing, comes to a conclusion on the reduction in diameter of bearing balls, thus, exploring a channel for the improvement of the bit bearing construction.更多还原