A Stable Suspension and Separation Mechanism of Pod Rods for Spacecraft

Abstract

The invention discloses a stable suspension and detachment mechanism of a pod rod for a spacecraft. The mechanism comprises an upper fixing ring, a lower fixing ring, an upper and lower ring connecting device, a sliding pin locking device, a motion sensing device, a pin remover and a pop-up separator. When the pod bar is fully unfolded in place, the lower end of the locking pin of the sliding pin locking device slides into the locking hole of the lower fixing ring through the through hole opened on the pod bar to realize the locking of the pod bar by the mechanism. At the same time, the action The induction device generates a trigger electrical signal. On the one hand, the retractable pin of the trigger pin remover is withdrawn to realize the downward movement of the upper fixing ring, thereby realizing the tight embrace of the pod rod. On the other hand, it triggers the start of the pop-up separator to realize the separation of the structure. The present invention can realize the stable suspension of the film structure on the pod rod by combining the two technical means of the sliding pin locking device and the movable upper fixed ring structure. Meanwhile, the present invention has the characteristics of simplicity, effectiveness, sensitivity and reliability.

Description

technical field [0001] The invention relates to the technical field of aerospace structure and mechanism design, in particular to a stable suspension and separation mechanism of a pod rod for a spacecraft. Background technique [0002] Solar sail spacecraft is a spacecraft that uses the reflected light pressure of sunlight on the film sail surface to provide flight power. The structure of the film sail surface is usually realized by forming a square or hexagonal structure through support rods and films. . Because the pod pole has the advantages of light weight, high rigidity, high storage efficiency, reliable deployment process, and small thermal expansion coefficient, it is a good structural form that can be used as a support pole for solar sail spacecraft. In order to further reduce the structural mass of the solar sail spacecraft so that it can achieve greater acceleration, after the solar sail spacecraft is fully deployed, it is a better solution to throw the retractabl...

AI Technical Summary

Problems solved by technology

[0003] However, in the design of the jettisonable solar sail spacecraft, the following technical problem is faced: on the one hand, when the pod poles are fully deployed in place, the membrane structure should be stably suspended on the ends of the pod poles, so that the connection points of the membrane structures It is firmly connected to the pod rod; on the other hand, while achieving stable suspension, the stable suspension mechanism must also be reliably separated from the retractable mechanism, which is conducive to the abandonment of the retractable mechanism. Therefore, it is necessary to design a stable suspension with separation mechanism

So far, there is no literature report on this type of stable suspension and separation mechanism

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