A micro-nano-satellite solar sail propulsion system deployment device

Abstract

The invention belongs to the field of micro-nano-satellites, and in particular relates to a deployment device for a micro-nano-satellite solar sail propulsion system. It includes a support protection mechanism, a sail storage mechanism, a deployment mechanism, a pressing mechanism and a limit locking mechanism; the support protection mechanism is used to support and protect the parts of the deployment device, including the sailboard; the film sail is stored in the sail storage mechanism, The expansion mechanism expands the film sail; the compression mechanism is used to prevent the mast of the expansion mechanism from expanding; the limit locking mechanism includes a locking block and a locking block limit mechanism. In the initial state, the locking block limit mechanism withstands The locking block connects the locking block to the chassis of the mast shaft of the unfolding mechanism, and fixes the mast shaft; when it is unfolded, the locking block limit mechanism releases the connection between the locking block and the mast shaft, and releases the restriction on the sailboard , windsurfing and membrane sail unfolded. The invention has the advantages of small size, light weight, high transmission efficiency and reliability, good controllability, high functional density and the like.

Description

technical field [0001] The invention belongs to the field of micro-nano-satellites, and in particular relates to a deployment device for a micro-nano-satellite solar sail propulsion system. Background technique [0002] Existing spacecraft propulsion technologies mainly include electric propulsion, chemical propulsion, and cold air propulsion, etc., but the above-mentioned propulsion methods have problems such as long development cycle, high cost, difficult storage of propellant and limited reserves, etc. Discontinuous thrust meets the needs of higher speed increments and long-distance navigation. A solar sail is a spacecraft propulsion system that utilizes the pressure of sunlight for space navigation. In space without resistance, solar photons will continuously hit the solar sail, generating pressure on the surface of the solar sail and continuously providing power for the spacecraft. Compared with the many problems in the use of propellants in the existing propulsion met...

AI Technical Summary

Problems solved by technology

However, there are some problems with this structural scheme: the use of this sail storage mechanism will expose most of the sail surface to the external environment. Since the thin film sail material is easy to break, this design scheme is likely to cause problems such as damage to the sail surface and internal parts, which will affect the device. Structural stability; the deployment mechanism adopts large and small gear meshing transmission, the transmission efficiency is low, and at the same time, problems such as tooth surface damage and inter-gear transmission jamming are prone to occur. The portability and performance of sailing speed and distance; the locking mechanism is designed as a simple spring-pull structure. During the unlocking process of the device, there is a problem that the freedom of movement of the locking mechanism is too large, and it is easy to collide and move the working parts in the device. Interference, the movement position of each component cannot be accurately positioned, and the controllability and reliability of the device are poor

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