The invention discloses a space deployable unit and a large-scale deployable platform. The space deployable unit is a symmetrical multi-closed-loop mechanism and comprises a first platform, a second platform and a plurality of plane 4R branch chains connected to the first platform and the second platform. The plane 4R branch chain is provided with a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is connected to the first platform through a first hinge point, the other end of the first connecting rod is connected with the second connecting rod through a second hinge point, and one end of the third connecting rod is hinged to the second connecting rod through a third hinge point. The other end of the third connecting rod is connected to the second platform through a fourth hinge point; rotation axes of rotation pairs formed at the first hinge point, the second hinge point, the third hinge point and the fourth hinge point are parallel to one another; the second connecting rods in the adjacent plane 4R branch chains are connected through two symmetrically-distributed plane 3R branch chains. The invention has the advantages of good symmetry, high rigidity, light weight, high structural stability and reliability and the like.

    本发明公开了一种空间可展开单元以及大尺度可展开平台。空间可展开单元为对称的多闭环机构,包括第一平台、第二平台、连接在第一平台和第二平台的多个平面4R支链;平面4R支链具有第一连杆、第二连杆和第三连杆,第一连杆的一端通过第一铰接点连接在第一平台上,第一连杆的另一端通过第二铰接点与第二连杆相连接,第三连杆的一端通过第三铰接点与第二连杆相铰接,第三连杆的另一端通过第四铰接点连接在第二平台上;其中,第一铰接点、第二铰接点、第三铰接点和第四铰接点处所形成转动副的转动轴线互相平行;相邻平面4R支链中的第二连杆通过两个对称分布的平面3R支链连接。本发明具有良好的对称性、高刚度、轻量化、结构的稳定性和可靠性高等优点。


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    Title :

    Space deployable unit and large-scale deployable platform


    Additional title:

    一种空间可展开单元以及大尺度可展开平台


    Contributors:
    LI BING (author) / ZHANG YANG (author) / XU PENG (author) / GAO CHANGQING (author)

    Publication date :

    2023-01-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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