The invention is suitable for the technical field of spaceflight, and provides a space coiling type stretching arm mechanism based on built-in stud unfolding. The bottom end of the coiled extension arm is connected with a turntable, and the turntable is connected with a satellite deck bearing; the built-in stud unfolding structure is mounted on the satellite deck, is positioned at the bottom end of the coiled extension arm and is positioned in the center of the coiled extension arm; wherein the coiled type stretching arm comprises a plurality of layers of ball rods, and the ball rods are sequentially matched with the built-in stud unfolding structure and used for driving the coiled type stretching arm to be repeatedly unfolded or folded. According to the invention, the built-in stud unfolding structure is arranged in the coiled extension arm, the space where the unfolding part is originally placed is utilized, repeated folding and unfolding of the coiled extension arm are realized, the top end part and the unfolding part do not rotate relative to the satellite deck, and the requirement of high pointing precision of scientific loads such as a space optical camera and the like can be met.

    本发明适用于航天技术领域,提供了一种基于内置螺柱展开的空间盘绕式伸展臂机构,包括:卫星舱板;盘绕式伸展臂,盘绕式伸展臂底端连接有转盘,转盘与卫星舱板轴承连接;内置螺柱展开结构,安装在卫星舱板上,位于盘绕式伸展臂的底端,处于盘绕式伸展臂的中心;其中,盘绕式伸展臂包括多层滚珠杆,滚珠杆依次与内置螺柱展开结构配合,用于带动盘绕式伸展臂重复展开或收拢。本发明将内置螺柱展开结构布置在盘绕式伸展臂的内部,利用了展开部分原本被搁置的空间,实现盘绕式伸展臂的重复收展,顶端部件及展开部分相对卫星舱板不发生转动,可以满足空间光学照相机等科学载荷高指向精度的要求。


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    Title :

    Spatial coiling type stretching arm mechanism based on built-in stud unfolding


    Additional title:

    一种基于内置螺柱展开的空间盘绕式伸展臂机构


    Contributors:
    SUN LIANG (author) / ZHAO WEIJIA (author) / ZHAO XURUI (author) / ZHAO ZELIN (author) / LIU YU (author) / HUANG HAI (author) / LIU JIAJUN (author)

    Publication date :

    2024-05-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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