Sampling device of deep-space asteroid sample collection detector

Abstract

The invention discloses a sampling device of a deep-space asteroid sample collection detector; the structure is characterized in that the device comprises an ejection port, a housing, an ejection ball storage tube, a driving motor, an air valve housing, a piston, a cam, a trigger, a trigger return spring, a pedestal extension bar, a pedestal piston connector, a pedestal, a valve body, a valve core control spring, a valve core, a stopping block, ejection balls, an arch bar, a piston O-shaped sealing ring, and the like. The invention is characterized in that: the driving part controls the starting of the piston; the piston controls the on and off of compressed air by pushing the valve core of the air valve; the ejection balls are ejected out of the pipeline orifice with certain kinetic energy by pushing of the high-pressure air; and the sampling purpose is reached by soil sputtering caused by bumping with the asteroid surface. The invention is a surface trace sample collection device which is small in mass, simple and reliable in structure, and convenient for automatic operation, and overcomes the influence of 'zero-gravity' environment by a diffusion principle.

Description

technical field [0001] The invention relates to a deep space asteroid sample collection probe, in particular to a sampling device of the deep space asteroid sample collection probe. Background technique [0002] Asteroids are rocky or metal celestial bodies orbiting the sun. Their size is quite small, and most of them are distributed between the orbits of Mars and Jupiter. Asteroid deep space exploration is a new development direction of space exploration activities, and it is an important research field for scientists to understand the origin, evolution and life raw materials of the solar system. [0003] The environment of the asteroid is very different from that of the earth, and the gravity of the environment is almost zero, so the excavation machinery and sampling machinery used on the earth cannot be fully applied to the asteroid. At the same time, with the current technology that humans have, it is impossible to bring a large number of samples to the earth for analys...

AI Technical Summary

Problems solved by technology

Japan's Hayabusa was launched in 2003 to take samples on the asteroid 25143. It was the first country to successfully collect samples on the asteroid and return it successfully. After arriving at the asteroid, the Hayabusa launched an object and hit it. The target object achieves the purpose of sampling by splashing the surface soil on the asteroid, but there are still problems such as high energy consumption and complex structure, which affect the reliability of the detector's sampling

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