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施必牢螺纹在采样钻具防松连接中的应用研究
马超1, 林晨2, 赵曾3, 钱成1, 殷参3, 潘秋月1, 姜生元1
1.哈尔滨工业大学 机器人技术与系统国家重点实验室, 哈尔滨 150080;2.哈尔滨理工大学, 哈尔滨 150080;3.北京卫星制造厂, 北京 100190
摘要:
在月面环境下实施钻取采样作业任务,采样钻具将受到驱动部件的高频冲击作用以及月壤交变载荷的复合作用,钻进过程中还可能需要钻具反转。为了确保在各种复杂条件下钻具的螺纹连接不松脱、不错相,对采样钻具螺纹连接失效模式进行了分析,提出了一种应用施必牢螺纹实现防松的方案,并与标准螺纹进行了对比性实验研究,验证了施必牢螺纹在采样钻具中应用的可行性。
关键词:  月面采样;钻具连接;施必牢螺纹防松
DOI:10.15982/j.issn.2095-7777.2016.02.013
分类号:
基金项目:探月三期月面钻取采样技术预先研究专项(TY3Q20110005),载人航天领域预先研究项目(050102)
Application Research of DTFLOCK Thread in Anti-Loosing Connection of Drilling Tool
MA Chao1, LIN Chen2, ZHAO Zeng3, QIAN Cheng1, YIN Shen3, PAN Qiuyue1, JIANG Shengyuan1
1.State Key Laboratory for Robotics and System, Harbin Institute of Technology, Harbin 150080, China;2.Harbin Polytechnic University, Harbin 150080, China;3.Beijing Spacecraft Manufacturing Factory, Beijing 100190, China
Abstract:
In the sample drilling task of China's lunar exploration project, the reliability of drilling machines influences its function directly, and can even lead toa success or failure of the sampling task. By analyzing the mechanical properties and high and low temperature environment of drilling tools in the whole life cycle, this paper identifies the failure mode of the drill string, summarizes the anti-loosing method of conventional thread and proposes an anti-loosing scheme of DTFLOCK thread structure, which was compared with standard thread by experiment. The new anti-loosing method provides reference for the design of connection structure of the drilling tool for the engineering departments.
Key words:  lunar surface sampling;drill connecting thread;DTFLOCK thread