A two-folding type semi-rigid mechanical unfolding speed reducing mechanism comprises a driving unit, a rigid nose cone, a flexible heat-proof skin, a main body and a plurality of moving rod piece units. The driving unit comprises a winch and a cable; the winch is installed on the main body, the winch is connected with the rigid nose cone through a mooring rope so as to drive the rigid nose cone to move towards the main body in the axial direction, multiple sets of moving rod piece units hinged to the rigid nose cone and the main body and supporting the rigid nose cone are arranged between the rigid nose cone and the main body, and each set of moving rod piece unit is a double-fold spoke synchronous folding mechanism. The flexible heat-proof skin covers the multiple sets of moving rod piece units and is tensioned along with unfolding of the moving rod piece units. The double-folded spoke synchronous folding mechanism and the double-folded spoke synchronous mechanism are adopted for synchronous unfolding, the folding height is low, the unfolded double-folded spoke synchronous folding mechanism has enough high rigidity, and compared with a rigid speed reducing mechanism with the same enveloping volume, the double-folded spoke synchronous folding mechanism has a larger speed reducing area, so that the double-folded spoke synchronous folding mechanism has higher speed reducing capacity.

    一种二折式半刚性机械展开减速机构,它包含驱动单元、刚性头锥、柔性防热蒙皮、主体和多组运动杆件单元;所述驱动单元包含绞车和缆绳;绞车安装在主体上,绞车通过缆绳与刚性头锥相连,以驱动刚性头锥可在轴向上朝着主体运动,刚性头锥与主体之间布置有与二者铰接并支撑刚性头锥的多组运动杆件单元,每组运动杆件单元为双折辐条同步翻折机构,以实现随刚性头锥运动而作折展运动,柔性防热蒙皮覆盖于多组运动杆件单元上并随运动杆件单元的展开而张紧。本发明采用双折辐条同步翻折机构,双折式辐条同步机构同步展开,收拢高度较低,展开后具有足够高的刚性,相比于同包络体积的刚性减速机构,具有更大的减速面积,从而具有更强的减速能力。


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    Title :

    Two-folding type semi-rigid mechanical unfolding speed reducing mechanism


    Additional title:

    一种二折式半刚性机械展开减速机构


    Contributors:
    SHI CHUANG (author) / CONG QIANG (author) / LI BIAO (author) / MA BIN (author) / LI XIAO (author) / LIU JINTONG (author) / ZHANG SHUYANG (author) / ZHANG JIANPENG (author) / MA YUNBIN (author) / GUO HONGWEI (author)

    Publication date :

    2023-03-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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