The invention discloses an antenna folding and unfolding mechanism which comprises a linkage rod, a horizontal rod, a horizontal unfolding rod and a vertical unfolding rod. The ends of the two linkage rods are rotationally connected through first rotating joints, and the two ends of the horizontal rod are connected to the two first rotating joints. One end of the horizontal unfolding rod is connected to the linkage rod through a second rotating joint, and one end of the vertical unfolding rod is connected to the other end of the horizontal unfolding rod through a third rotating joint. The linkage rod rotates around the first rotating joint to achieve folding and unfolding actions, the horizontal unfolding rod rotates around the second rotating joint to achieve folding and unfolding actions, and the vertical unfolding rod rotates around the third rotating joint to achieve folding and unfolding actions. After being unfolded, the linkage rod, the horizontal unfolding rod and the vertical unfolding rod are locked through additional locking pieces. The antenna folding and unfolding mechanism has the advantages of being high in rigidity, light in weight, small in folding size, high in folding rate, capable of balancing mirror image pressure, balanced in overall prestress and the like, and has important practical significance on development of the aerospace industry.
本申请公开了一种天线折展机构,包括联动杆、水平杆、水平展开杆和竖直展开杆;两根联动杆的端部通过第一转动关节转动连接,水平杆的两个端部连接在两个第一转动关节上;水平展开杆的一端通过第二转动关节连接在联动杆上,竖直展开杆的一端通过第三转动关节连接在水平展开杆的另一端;联动杆绕第一转动关节转动可实现折展动作,水平展开杆绕第二转动关节转动实现折展动作,竖直展开杆绕第三转动关节转动实现折展动作;联动杆、水平展开杆和竖直展开杆展开后,依靠额外的锁定件进行锁定。这种天线折展机构,具有刚度较高、质量轻、折叠体积小、高收拢率、可平衡镜像压力、整体预应力平衡等优点,对航天事业发展具有重要的现实意义。
Antenna folding and unfolding mechanism
一种天线折展机构
2022-06-10
Patent
Electronic Resource
Chinese
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