Expandable cabin section mechanism with high folding-unfolding ratio

Abstract

An expandable cabin section mechanism with a large folding-unfolding ratio comprises a connecting column and a plurality of folding-unfolding units; one or more than two folding and unfolding units which are connected end to end to form a folding and unfolding truss, the folding and unfolding truss is divided into a transverse folding and unfolding truss and a vertical folding and unfolding trusswhich have the same structure; a plurality of transverse foldable trusses which are connected end to end through connecting columns to form an upper foldable regular N-polygon truss and a lower foldable regular N-polygon truss, the upper connecting column and the lower connecting column are connected through a vertical foldable truss to form a foldable regular N-prism truss, and transverse foldable trusses which are connected with the connecting columns and arranged in a cross shape are arranged in the upper regular N-polygon truss and the lower regular N-polygon truss respectively. And connecting columns are connected to the intersections of the cross-shaped transverse foldable trusses. The mechanism is compact in structure, smooth in unfolding process, free of interference between mechanisms and high in structural rigidity.

Description

technical field [0001] The invention relates to a space capsule, in particular to an expandable compartment mechanism with a large folding ratio. Background technique [0002] In the development process of spacecraft, the space capsule has a rigid section, a flexible section and a construction base. The rigid section started earlier, and various countries first conducted research on the rigid section. The main material of the rigid section is metal. According to different use requirements, a base can be divided into multiple compartments, and the compartments are connected with each other. However, due to the limited space of a single cabin, the activities of astronauts are limited. In addition, the shape of the rigid cabin is fixed, and it is easy to be restricted by terrain conditions in terms of base site selection and cabin connection. The quality and volume of the cabin are limited by the carrying capacity. If the outer space base needs to be expanded, it needs to be ...

AI Technical Summary

Problems solved by technology

my country's space technology started relatively late, and the lunar module and the inflatable module appeared successively. Although they have their own advantages, in general, according to the design requirements of the expandable module facing the planetary base, the expandable module requires a lot of space. The folding-to-expanding ratio, the deployment process is smooth and there will be no interference between the mechanisms; after the deployment is in place, it has strong structural rigidity; in addition, as the deployment mechanism on orbit, the deployable cabin truss is required to be simple in structure, high in reliability, and lightweight demand has not been effectively improved

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