According to the heavy-load retractable electromechanical actuator with the dissimilar energy emergency extension function, the safety of the heavy-load retractable electromechanical actuator can be improved, and multi-redundancy emergency putting down of the piston barrel of different working media is achieved. According to the technical scheme, a boss locking ring arranged on the inner wall of a piston cylinder is embedded into a necking groove in the radial direction through the finger-shaped locking claw necking groove, an inner ring of an end flange locking claw is tightly attached to the outer ring face of an upper locking bush restrained in an annular cavity of the piston cylinder by a spring, and the flange locking claw at the end is kept in a locking groove of the boss locking ring; an emergency unlocking mechanism capable of being unlocked by an emergency medium and a locking mechanism with an emergency forced unlocking function are formed; when the lead screw pair is stuck and needs to emergently extend out of the piston barrel, the high-pressure medium pushes the locking bush to overcome the elastic force of the spring to be separated from the flange locking claw inner ring of the finger-shaped locking claw locking barrel, the locking bush slides to be separated from the unlocking position to be unlocked, the finger-shaped locking claw locking barrel is separated from the piston barrel, the high-pressure medium pushes the piston barrel to extend out, and the electromechanical actuator can emergently extend out of the piston barrel.

    本发明提出的一种具备非相似能源应急伸出功能的重载收放机电作动器,可提高重载收放机电作动器安全性,实现不同工作介质的多余度应急放下活塞筒。本发明通过下述技术方案实现:指形锁爪缩颈槽将活塞筒内壁上制有的凸台锁环径向嵌入缩颈槽中,端头凸缘锁爪内环紧贴被弹簧约束在活塞筒环腔中的上锁衬套外环面,将端头上的凸缘锁爪保持在凸台锁环的锁槽内,形成可被应急介质开锁的应急开锁机构和应急强制解锁功能的锁紧机构;当丝杠副卡死需要应急伸出活塞筒时,高压介质推动上锁衬套克服弹簧弹力从指形锁爪锁筒的凸缘锁爪内环脱出,滑动脱出移开到松锁位解锁,指形锁爪锁筒与活塞筒脱离,高压介质推动活塞筒伸出,实现机电作动器的应急伸出活塞筒。


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    Title :

    Heavy-load retractable electromechanical actuator with dissimilar energy emergency extension function


    Additional title:

    具备非相似能源应急伸出功能的重载收放机电作动器


    Contributors:
    WANG LI (author) / KUANG KEHUAN (author) / XIAN ZIJIN (author) / TIAN JIANHONG (author)

    Publication date :

    2023-04-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16H Getriebe , GEARING / B64C AEROPLANES , Flugzeuge / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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