A Large Expansion-to-Receipt Ratio Expansion Mechanism Suitable for Space Environment

Abstract

The invention provides a large unfolding ratio deployment mechanism suitable for space environment, the deployment mechanism includes an upper structural plate, two sets of limit sleeves, two sets of reels, two sets of belt springs, and a load mounting plate; wherein, The upper structural plate is fixed on the detector, and the whole unfolding mechanism is fixedly connected with the detector; the two sets of reels are respectively located in the two limit sleeves, and driven by the motor, the two sets of reels rotate in tandem, synchronously driving the two sets of belt spring rolls Winding and release; one end of two sets of ribbon springs is fixed on the reel, and the protruding end is connected with the load mounting plate to drive the load mounting plate to rise and fall; the load mounting plate is used as the execution unit of the load task. The unfolding mechanism in the present invention adopts the arc-shaped cross-section strip spring as the core part, which realizes the flexible folding and rigid unfolding of the unfolding mechanism; the volume and length in the folded state are small, and a support structure with a certain rigidity can be obtained after unfolding. It solves technical problems such as large unfolding ratio and light weight that cannot be realized by traditional unfolding mechanisms.

Description

technical field [0001] The invention belongs to the technical field of deep space detection and relates to a deployment mechanism, in particular to a deployment mechanism with a large deployment ratio suitable for space environments. Background technique [0002] Extraterrestrial celestial bodies are an important carrier for humans to understand the origin and evolution of the universe and the solar system, and carry rich scientific information. Therefore, it is of great significance to sample and return extraterrestrial celestial bodies. [0003] Before sampling an extraterrestrial body, the sampler must be extended from the detector to the surface of the extraterrestrial body through the deployment mechanism, and the sampler must be pressed against the surface of the extraterrestrial body with a certain pressure before the sampling task can begin. However, due to the difficulty of sampling and returning extraterrestrial celestial bodies, the resources on the detector are l...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the prior art, the inventors have carried out dedicated research and provided a large expansion-to-contraction ratio deployment mechanism suitable for space environments, using arc-shaped cross-section ribbon springs as core components to realize the flexible folding of the deployment mechanism and rigid unfolding; the volume and length in the folded state are small, and a support structure with a certain rigidity can be obtained after unfolding, which solves technical problems such as large unfolding ratio and light weight that cannot be realized by traditional unfolding mechanisms, thus completing the present invention

Images