钻头轴承 meaning in English
bit bearing
Examples
- Contact stress analysis on the bearing of single - cone bits
单牙轮钻头轴承接触应力分析 - High speed journal seal of cone bit design and finite element method analyze
高速牙轮钻头轴承密封副设计与有限元分析 - The most common sealing ring of bit bearing is single o - ring , which is made of rubber
最常用的钻头轴承密封圈是单个o形圈，主要以丁腈橡胶制作。 - The service life of cone bits which play an important role in breaking rock of the bottom of a well is almost directly decided by the life of bit bearing , which depends a large extent to the life of their seals
牙轮钻头在井底破岩中起着主导作用，它的使用寿命几乎直接取决于钻头轴承的寿命，而轴承的寿命在很大程度上有依赖密封的寿命。 - Based on the tribological principle and the theory of contact mechanics , it is feasible to adopt curvature - changing structure in the rock - bit journal bearing system . the structure and coupling relationship of curvature - changing journal bearing under the condition without friction have been analyzed and three kinds of sub - form structure configurations , namely , the pseudo - curvature - changing structure , the conformable curvature - changing structure , and the clearance curvature - changing structure , been differentiated according to the contacting features . the shape optimization and pre - running - in regulations of the contact surface of curvature - changing journal bearing under friction condition have been established . the results of rock bit journal bearing test indicate that the tribological behavior of the bearing can be effectively improved by curvature change based on both designing and pre - running - in
基于摩擦学原理和接触力学理论,提出了可在牙轮钻头滑动轴承中采用变曲率结构.在不考虑摩擦的情况下，就结构设计和配合关系等问题进行了分析讨论，划分了准变曲率、吻合变曲率以及间隙变曲率等3种结构形式；针对考虑摩擦时的变曲率结构，提出了接触形状优化和预磨合的实施方案.钻头轴承试验结果表明，无论是预设计变曲率还是预磨合变曲率，都能改善轴承摩擦副的摩擦学特性，因而值得进一步研究和推广