Drilling and taking integrated coring method and device in special category space

Abstract

The invention relates to a drilling and taking integrated coring method and device in a special category space. The device comprises screw blades, supports, sliding rails, plugs, springs and a hollow portion; the screw blades are used for cutting rock mass and achieving drilling; the supports are fixed to the upper ends of the screw blades, are inserted into the sliding rails in a penetrating mode, and are used for determining the horizontal positions of the screw blades; when drilling rods drill in the sliding rails in the radial direction of the circular cross sections of the drilling rods, the screw blades are back to and away from the circle center of the cross section and are spread outwards, so that all screw blades are not in contact with each other; the plugs are fixed to the upper ends of the supports, the diameters of the plugs are larger than the widths of the sliding rails, and the plugs are used for determining the vertical positions of the screw blades; the springs are connected between the inner walls of drilling rod tracks and the plugs and used for keeping the original closed state of the screw blades; the hollow portion is used for injection of a cooling solution and removes the heat generated by friction between the screw blades and the rock mass. According to the drilling and taking integrated coring method, the centrifugal force of the screw blades in rotation is used, drilling is conducted in a confined space which is formed by soft bags and weights, and rock fragments are collected into the soft bags.

Description

technical field [0001] The invention belongs to the technical field of space coring, and in particular relates to an integrated coring method and device for special space drilling. Background technique [0002] In recent years, with the rapid development of the aerospace industry, human beings have become more curious about space, and their exploration of space has become more profound. However, human analysis of Martian surface rock mass is still at a relatively shallow stage. The special working environment on Mars has caused great difficulties for rock mass analysis. The particularity of the Martian environment lies in: 1. The Martian atmosphere is thin and cold, and the atmospheric composition is mainly carbon dioxide. 2. Mars is a desert planet with complex terrain. The special environment of Mars has caused some difficulties in coring work, which can be summarized into four points: First, the low gravity and the thin atmosphere of Mars make the drilling of drill pip...

AI Technical Summary

Problems solved by technology

2. Mars is a desert planet with complex terrain

The special environment of Mars has caused some difficulties in coring work, which can be summarized into four points: First, the low gravity and the thin atmosphere of Mars make the drilling of drill pipes more uncontrollable than in the environment on Earth; second, the temperature is low, and Mars The surface temperature is about minus 55°C, water and carbon dioxide are easy to freeze and cannot be used; third, the thermal conductivity is low, and the heat on Mars is difficult to dissipate, which will affect the drilling speed of the drill bit and change the material in the rock body; the fourth is the terrain Complicated, which requires a higher ability of the sampler to adapt to the changing environment

There are already many results and cases in this area in the current research, but the practicability is not high and the sampling efficiency is low

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