月球钻孔取心机具试验与钻进规程
Coring Tests of Core Drilling Tool and Analysis of Drilling Parameters

我国探月工程第3期工程的核心任务是实现月球钻探取样和返回，明确采用钻取方式获取深2 m的月壤样品.针对月表极端钻进环境，提出一种内外管联合取心螺旋钻具，即内管软袋提拉取心，外管螺旋集输取心.模拟月壤钻进试验结果表明，该取心钻具能实现有效钻进可靠取心，特别适合小于0.6 m浅层模拟月壤钻取.试验研究了钻进规程对模拟月壤取心率和钻进功耗的影响规律，得出了钻进转速、进给速度值域与功率值域的关联性，对月球环境下取心钻具研制和钻进规程制定具有实际工程应用价值.
The core task of the third stage of China's Lunar Exploration Program is to realize the lunar drilling and sampling and returning to the earth. 2 meter deep lunar soil sampling is required through drilling method. Due to the extreme environment on the lunar surface, an auger core drillig tool with joint inner and outer pipe is proposed in this paper. The core in the inner pipe is obtained by pulling the soft bag, and the core in the outer pipe is transported to the collector by the helical blade. Drilling tests on the lunar soil simulant indicate that the auger drilling tool is reliable for coring, especially for the superficial lunar soil with depth less than 0.6 meters. The influences of drilling parameters on core recovery and drilling power consumption in the tests are studied Relationships between rotation speed, the range of drilling footage speed and power are concluded, which can facilitate the development of core drilling tools and the determination of drilling parameters in the lunar environment