The invention relates to a redundant unlocking sleeve structure based on double pin pullers, and belongs to the technical field of unfolding and folding driving. Comprising two pin pullers, a sleeve and a lifting point connecting seat, wherein the lifting point connecting seat is of a U-shaped structure with an opening vertically arranged upwards; the sleeve is axially and horizontally arranged in an inner cavity of the lifting point connecting seat; the two pin pullers are symmetrically arranged on the two sides of the lifting point connecting seat; the head end of the pin puller is provided with a piston which stretches out and draws back in the horizontal direction; through holes are formed in the corresponding positions of the two side walls of the lifting point connecting seat, so that pistons of the two pin pullers extend into an inner cavity of the lifting point connecting seat from the through holes in the two side walls of the lifting point connecting seat, and the sleeve is limited through the two pistons; the sleeve serves as a lifting point of the external brake parachute and is connected with the external brake parachute and an external spacecraft. A simplified, feasible and high-reliability redundant unlocking sleeve structure of the double pin pullers is designed, evolution and improvement can be carried out according to actual interface requirements on the basis, the number of size iterations can be greatly reduced, and the design efficiency is improved.
本发明涉及一种基于双拔销器的冗余解锁套筒结构,属于展开收拢驱动技术领域;包括2个拔销器、套筒和吊点连接座;其中,吊点连接座为开口竖直向上放置的U型结构;套筒轴向水平设置在吊点连接座的内腔中;2个拔销器对称设置在吊点连接座的两侧;拔销器的头端设置有沿水平方向伸缩的活塞;吊点连接座的两侧壁对应位置设置有通孔,实现2个拔销器的活塞从吊点连接座两侧壁的通孔伸入吊点连接座内腔,并通过2个活塞实现对套筒的限位;套筒作为外部减速伞的吊点,连接外部减速伞与外部航天器;本发明设计了简化可行的高可靠性的双拔销器冗余解锁套筒结构,在此基础上可根据实际接口要求进行演化改进,可大幅减少尺寸迭代次数,提高设计效率。
Redundant unlocking sleeve structure based on double pin pullers
一种基于双拔销器的冗余解锁套筒结构
2023-01-17
Patent
Electronic Resource
Chinese
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