Elastic sheet type extraterrestrial celestial body surface soil sampling mechanism and sampling method

Abstract

The invention discloses an elastic piece type extraterrestrial celestial body surface soil sampling mechanism and a sampling method. The sampling mechanism comprises a fixation support, an outer housing, an elastic piece lead screw, a rotating disc mechanism, an elastic piece nut, a rotating disc blocking piece, a sample pushing mechanism and eight elastic pieces. The fixation support is arrangedin the outer housing; the fixation support is connected with the outer housing and the elastic piece lead screw through bearings; after penetrating through a double-rib structure, a center hole of therotating disc mechanism is horizontally formed in the outer housing; the elastic piece nut and the rotating disc blocking piece are arranged between the rotating disc mechanism and the double-rib structure; the bottoms of the eight elastic pieces are connected to the rotating disc mechanism through screws; and the sample pushing mechanism is arranged in a cavity defined by the eight elastic pieces and connected with the fixation support through a nut structure. The problem that whether an existing sampling mechanism succeeds in sampling or not is limited by the compactness of celestial body soil is solved.

Description

technical field [0001] The invention belongs to the technical field of deep space exploration, and in particular relates to a shrapnel type extraterrestrial surface soil sampling mechanism and a sampling method. Background technique [0002] With the advancement of science and technology and the use of earth resources, human beings' desire for extraterrestrial resources has become more and more intense. Obtaining extraterrestrial wealth has become a hot research direction in various countries. Most of the various aircraft with extraterrestrial and celestial soil exploration missions will be equipped with sampling mechanisms, and lunar soil sampling on the surface of celestial bodies is undoubtedly the most efficient sampling target. [0003] Whether the existing surface lunar soil sampling mechanism can successfully sample is limited by the compactness of the celestial soil at the landing site. For example, the "Lunar Soil Extraction Device" developed by the Beijing Spacecra...

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Problems solved by technology

[0003] Whether the existing surface lunar soil sampling mechanism can successfully sample is limited by the compactness of the celestial soil at the landing site. For example, the "Lunar Soil Extraction Device" developed by the Beijing Spacecraft Overall Design Department uses the digging force at the tip of the excavator to break through the soil and sample , the main technical problems are: 1. When the sampling area is hard soil, the force at the end of the bucket is limited by the carrying capacity of the mechanical arm where the mining device is installed, which makes the mining device unable to complete the sampling task; 2. For The staking effect of celestial soil under lower gravity than the moon is limited

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