Design of inflation type space expandable device

Abstract

The invention discloses an inflation type space expandable device which is composed of an inflation film structure 1, a mechanical expandable structure 2 and an adjusting cradle head 3. The inflation film structure is composed of a film transmission film, a film reflection face, an outer film connecting edge, connecting springs, a film supporting ring, an air tap, an air pipe and the like. The mechanical expandable structure is composed of an upper platform, a lifting platform, a lower platform, long expanding rods, short expanding rods, a ball screw, a linear bearing, a stepping motor, a limiting switch and the like. The adjusting cradle head is composed of a cradle head height angle assembly, a cradle head horizontal angle assembly and a cradle head base. The inflation and deflation actions of the inflation film structure, the expanding and retracting actions of the mechanical expandable structure and the adjusting action conducted by the adjusting cradle head on the horizontal angle and the height angle of the reflection face are all controlled through a single-chip microcomputer controller, and the inflation film expanding and retracting functions and the reflection face reflection function are achieved. By the adoption of the inflation type space expandable device, the structure is simple, the adjusting accuracy is high, a control system is simple and effective, the launching size of a large-caliber outer space device can be effectively reduced, and the application prospect is wide.

Description

technical field [0001] The invention relates to an inflatable space expandable device, which is mainly used in the field of space large-diameter inflatable equipment, and can effectively reduce the launch volume and reduce the launch cost of space equipment. Background technique [0002] Due to the limitation of the effective space capacity and launch cost of ground-based space launchers, the development of various types of space deployable structures is becoming more and more urgent, and has also received continuous attention from various countries. The space deployable structure is a new type of structure that emerged with the innovation of aerospace technology in the late 1960s. It has the characteristics of high rigidity, high strength, and high geometric stability. The structure is stored in a folded posture in each spacecraft load compartment on the ground and during the launch process. When the spacecraft is positioned on the working orbit and running normally, it can...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of large launch volume and high launch cost of space large-diameter equipment, the present invention designs an inflatable space expandable device, which can realize the expansion and contraction functions of space large-diameter inflatable films, effectively reducing the size of large-diameter space devices. The launch volume and launch cost of

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