Solar wing unfolding and locking mechanism based on spring drive

Abstract

The invention provides a solar wing unfolding and locking mechanism based on spring drive. The mechanism comprises torsion springs, end rotating bases, middle rotating bases, torsion spring limiting bases, torsion spring compacting bases, torsion spring compacting cover plates, aramid wires, special adhesive tapes and locking mechanisms, wherein the end rotating bases are positioned at the upper and lower ends of a solar wing, are bilaterally matched through double folded solar wings, are provided with unfolding axes and binding points, and simultaneously serve as mounting planes of the locking mechanisms; the middle rotating bases are positioned at the middle part of the solar wing, are bilaterally matched through the double folded solar wings, and are provided with unfolding axes and binding points; the torsion spring compacting bases are fixed planes of straight segments at the ends of the torsion springs, and the torsion springs are compacted through the troughs of the torsion spring compacting cover plates; the torsion spring limiting bases are distributed on the double folded solar wings in a staggered mode to complete limiting of the torsion springs in a rotating process; and the driving moment obtained when the solar wing is unfolded is supplied by the potential energy obtained when the torsion springs are subjected to torsion, the solar wing is locked by the locking mechanisms after being unfolded in place, and limiting between wings and rigidity retention are realized through the aramid wires and the special adhesive tapes.

Description

technical field [0001] The invention relates to the technical field of spacecraft, in particular to a solar wing deployment and locking mechanism for aerospace. Background technique [0002] The solar wing unfolding and locking mechanism is widely used in aerospace, especially in the field of satellites. The solar wing structure mechanism is mainly used to provide an installation plane for the solar cell system and ensure the smooth deployment of the folding wing in orbit. Taking the solar wing of a satellite in the aerospace field as an example, its deployment mechanism is mainly hinge type, lotus leaf type, rotary joint, spring type, etc., and the locking mechanism mainly includes mechanical locking, friction self-locking, hinge self-stiffness locking, etc., but Existing unfolding and locking mechanisms have certain disadvantages. Among them, the hinge type often requires a certain gap between the battery panels, which occupies a large envelope space. At the same time, the...

AI Technical Summary

Problems solved by technology

However, because the unfolding mechanism is mechanically locked, it can only be folded manually, and cannot be automatically folded by motor drive.

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