The invention provides an SMA driving separation nut unlocking mechanism, and belongs to the technical field of unlocking separation. The SMA wire is adopted as a first-stage unlocking driving signal source, and the problems that the alloy wire margin is insufficient and the magnitude order of a power source is too large are solved through the locking load and the specific structure shape. The mechanical unlocking device comprises a base, a separation screw, a split nut, a retainer, a shell, a middle seat, a pin roller, a roller, a bayonet lock, an upper cover, a driving arm and the like, and is used for spaceflight products to resist mechanical environment impact and have a space unlocking function.

    本发明提出了一种SMA驱动分离螺母解锁机构,属于解锁分离技术领域。采用了SMA丝作为一级解锁驱动信号源、锁紧载荷和特定结构形状解决了合金丝裕度不足和动力源数量级过大的问题。它包括底座、分离螺钉、分瓣螺母、保持架、外壳、中座、滚柱、滚轮、卡销、上盖和驱动臂等部分,用于航天产品抵御力学环境冲击和空间解锁功能。


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    Title :

    Separating nut unlocking mechanism driven by SMA wire


    Additional title:

    一种SMA丝驱动的分离螺母解锁机构


    Contributors:
    YUE HONGHAO (author) / XU YANHUI (author) / SONG LIANJIE (author) / ZHANG RONGRU (author) / WU JUN (author) / MA CHAO (author)

    Publication date :

    2022-03-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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