旋转总成是取心工具的核心部位,本文分析了目前国内外普遍使用的取心工具旋转总成的结构以及存在的问题。研究应用了陶瓷材料制做取心工具旋转总成的滚动体,经过室内和现场试验,取得了成功。解决了取心工具由于放置时间长,旋转总成生锈卡死和旋转不灵活的问题。为陶瓷材料在钻井工具方面的进一步应用,提供了有价值的宝贵经验。 Rotating assembly is the core of coring tool. This paper analyzes the structure and existing problems of revolving assembly of coring tools commonly used at home and abroad. Studied the use of ceramic materials to make coring tool rotating assembly of rolling elements, after indoor and field tests, and achieved success. Solve the coring tools due to a long time to put the rotating assembly rusting stuck and rotating inflexible problem. The further application of ceramic materials in drilling tools has provided valuable valuable experience.