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介绍了矿用三牙轮钻头主要失效形式及技术措施;为提高轴承系统性能和寿命,引入并讨论了实现牙爪磨削的几种可行方案;提出了防止牙轮滚道产生裂纹的技术措施;简述了进一步提高钻头性能的方法。
The main failure modes and technical measures of the mining tricone bit are introduced. In order to improve the performance and life of the bearing system, several feasible schemes to realize the claw grinding are introduced and discussed. The technical measures to prevent the crack of the roller cone are proposed The method to further improve the drill performance is briefly described.