Low-force high-efficiency simulated moon rock drilling core bit

Abstract

The invention provides a low-force high-efficiency simulated lunar rock drilling core bit, which comprises a hollow cylindrical drill body. The end of the drill body is provided with an ellipsoidal head. A coring channel is formed between the inner surface of the drill body and the barrier ring. The outer surface of the drill body is provided with a spiral wing. The surface of the ellipsoidal head is processed with an ellipsoidal spiral wing for chip removal. It is set on the same helical line as the helical wing, and two groups of sharp-edged cutting tools are uniformly arranged on the circumferential direction of the ellipsoidal head, which are respectively the inner sharp-angle cutting tool group and the outer sharp-angle cutting tool group. The inner sharp-angle cutting tool group includes multiple The inner sharp cutting tool and the outer sharp cutting tool group include a plurality of outer sharp cutting tools, the number of the inner sharp cutting tool is equal to the head number of the ellipsoidal spiral wing, and the number of the outer sharp cutting tool is equal to the number of heads of the screw wing. The numbers are equal. The invention can obtain better debris removal effect and higher core extraction rate in the surface drilling test of molded lunar soil.

Description

technical field [0001] The invention belongs to the field of aerospace and space, and relates to a drilling tool for drilling soil on the surface of the moon in an aerospace space environment, in particular to a low-force high-efficiency simulated moon rock drilling core bit. Background technique [0002] Aerospace is a frontier project for human beings to explore the natural world. Going into space has become an indispensable symbol of a technologically powerful country. As a relay stage of my country's aerospace industry, the lunar exploration project has taken the first step in my country's exploration of extraterrestrial celestial bodies. At present, my country plans to implement an unmanned autonomous sampling and return exploration plan on the surface of the moon, and plans to use drilling and sampling methods to obtain lunar soil samples at a depth of about 2m below the lunar surface. Due to the indeterminacy of the objects drilled and cored on the lunar surface, ther...

AI Technical Summary

Problems solved by technology

Due to the indeterminacy of the objects drilled and cored on the lunar surface, there are not only wide-band distribution of lunar regolith, but also large-scale lunar rocks, which increases the risk for continuous and reliable collection of lunar regolith samples

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