Space expandable exposure experiment platform based on spherical 5R mechanism

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Space expandable exposure experiment platform based on spherical 5R mechanism

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SUN HUIZE / ZHAO CHONG / WANG KE / ZHAO HAIFENG / ZHANG LU / NING ZHITAO

The invention relates to a spherical 5R mechanism-based space expandable exposure experiment platform, which comprises a central module, a lead screw nut transmission mechanism, a connecting rod assembly, spherical 5R mechanisms, a driving mechanism and expansion blocks, and is characterized in that a plurality of expansion blocks are hinged to the peripheral edge of the central module, and a spherical 5R mechanism is hinged between every two adjacent expansion blocks; the inner side face of each unfolding block is connected with at least one connecting rod assembly, the driving mechanism is connected with the lead screw nut transmission mechanism and drives the lead screw nut transmission mechanism to drive the connecting rod assemblies to move, and the unfolding blocks and the spherical 5R mechanisms are driven by the connecting rod assemblies to be synchronously folded and unfolded. According to the exposure experiment platform, the unfolding block and the spherical 5R mechanism are folded and unfolded through cooperation of the lead screw nut transmission mechanism and the connecting rod assembly, the exposure experiment platform is folded towards the center when folded, smaller launching space is occupied, the surface area for exposure experiments is effectively increased when the exposure experiment platform is unfolded, the number of exposure experiments capable of being carried out is increased, and the development efficiency is improved. And a relatively large folding and unfolding ratio is realized.

本发明涉及一种基于球面5R机构的空间可展开暴露实验平台，包括中心模块、丝杠螺母传动机构、连杆组件、球面5R机构、驱动机构和展开块，所述中心模块的周侧边缘铰接有多个展开块，相邻两个展开块之间铰接有球面5R机构，每个展开块的内侧面上均连接有至少一组连杆组件，驱动机构连接并驱动丝杠螺母传动机构带动各组连杆组件运动，并利用连杆组件带动各个展开块以及各个球面5R机构同步折展。本发明的暴露实验平台，利用丝杠螺母传动机构和连杆组件配合使展开块和球面5R机构折叠展开，使暴露实验平台在折叠时向中心收拢，占用更少的发射空间，在展开时有效增加可供进行暴露实验的表面积，增加了可开展暴露实验的数量，实现较大的折展比。