Celestial body landing mechanism

Abstract

The invention discloses a celestial body landing mechanism which comprises a main node part carrying a main engine and a first motor; a plurality of sub-node parts on which landing legs are mounted; a plurality of connection parts, each of which connects a sub-node part to the main node part. The main engine drives the celestial body landing mechanism to ascend and descend. The first motor drives the sub-node parts to rotate relative to the main node part. At least one of a first end portion connected with the main node part and a second end portion connected with the corresponding sub-node part of each connection part is arranged to be capable of multi-degree-of-freedom movement. When the celestial body landing mechanism lands, the plurality of sub-node parts land in the same or different postures and land on a small celestial body through the landing legs. According to the celestial body landing mechanism, bounce during landing can be restrained to a certain extent, and therefore landing is more stable.

Description

technical field [0001] The invention relates to the technical field of deep space exploration, in particular to a celestial body landing mechanism. Background technique [0002] Small solar system bodies refer to celestial bodies that orbit the sun but do not meet the conditions of planets and dwarf planets. These celestial bodies include, for example, asteroids, comets, meteoroids and other interstellar matter. These small celestial bodies may have been born at the beginning of the formation of the solar system, and rarely experienced secondary chemical and geological evolution processes, thus retaining a lot of initial information about the solar system. Therefore, the detection of small celestial bodies is of great significance. [0003] Among the detection methods such as leap, circle, and landing, the most direct and effective method is landing attachment detection. However, small celestial bodies have the characteristics of weak gravitational force and irregular gra...

AI Technical Summary

Problems solved by technology

However, due to the characteristics of weak gravitation and irregular gravitational distribution of small celestial bodies, dark star tables, uncertain environment, and large measurement and control time lag when the distance is long, etc.

This makes it difficult for the landing mechanism to achieve a robust attachment to these small celestial bodies

For example, when the gravitational force of a small celestial body is weak, there is a possibility that the landing mechanism may bounce multiple times when landing, and finally land in an area with poor lighting conditions

This will cause the landing mechanism to go dormant very quickly and lose its signal, which will lead to the failure of the landing mission

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