The invention discloses a separation unlocking device driven by shape memory alloy, and belongs to the field of spaceflight. A first sub-nut and a second sub-nut of the device are clamped in a shell, a driving elastic piece is arranged between the first sub-nut and the second sub-nut, a bolt hole can be formed after butt joint, and the driving elastic piece is in a compressed state; the end face, deviating from the bolt hole, of the second sub-nut is provided with a concave hole. The first end of the clamping structure is provided with a protrusion and abuts against the end face, away from the bolt hole, of the second sub-nut, and the second end of the clamping structure is arranged on the shell in a clamped mode and can rotate relative to the shell so that the protrusion can be clamped into or retreat from the concave hole. One end of the limiting pin penetrates out of the second sub-nut in the radial direction and then is clamped in the clamping structure, and the other end of the limiting pin is connected with the shape memory alloy wire. The end, away from the limiting pin, of the shape memory alloy wire penetrates through the first sub-nut and then extends out of the shell. According to the separating and unlocking device driven by the shape memory alloy, the bolt and the nut are easy to separate, impact force is not generated, smoke dust is not discharged, and the separating and unlocking device can be repeatedly used and is good in economical efficiency.

    本申请公开了一种形状记忆合金驱动的分离解锁装置,属于航天领域。该装置的第一、第二子螺母卡设于壳体内,之间设置驱动弹性件,对接后能够形成螺栓孔,并使驱动弹性件处于压缩状态;第二子螺母的背离螺栓孔的端面设置有凹孔;卡位结构的第一端设置有凸起,第一端抵于第二子螺母的背离螺栓孔的端面,第二端卡设于壳体上,并能相对壳体转动,以使凸起卡入或退出凹孔;限位销的一端沿径向穿出第二子螺母后卡设于卡位结构内,另一端与形状记忆合金丝连接;形状记忆合金丝背离限位销的一端穿过第一子螺母,再伸出壳体。本申请的形状记忆合金驱动的分离解锁装置,螺栓和螺母容易分离,不会产生冲击力,不会排放烟尘,而且可以重复使用,经济性较好。


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    Titel :

    Separation unlocking device driven by shape memory alloy


    Weitere Titelangaben:

    一种形状记忆合金驱动的分离解锁装置


    Beteiligte:
    WANG JUN (Autor:in) / WANG CHENYU (Autor:in) / ZHANG WEIHONG (Autor:in) / ZHU JIHONG (Autor:in) / GU XIAOJUN (Autor:in) / ZHANG YAHUI (Autor:in)

    Erscheinungsdatum :

    2023-12-15


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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