The emergency unlocking electromechanical actuator is simple in structure, concise, compact and reliable in performance. According to the technical scheme, a servo motor drives a lead screw gear to rotate through a clutch shaft connecting disc gear transmission mechanism, a lead screw nut restrains a reset spring in a hollow stepped hole of a piston head through an end cover sliding sleeve, and a steel ball lock is locked in a guide groove of the piston head through an upper locking groove located in the inner wall of an outer cylinder. When the clutch breaks away, the high-pressure medium enters an outer cylinder cavity through an emergency energy inlet in the outer ring face of the outer cylinder, a closed-loop emergency loop pushing the end cover sliding sleeve to overcome the elastic force of the reset spring is formed, the high-pressure medium pushes the front end face of the end cover sliding sleeve to the steel ball lock limit position on the end face of the hollow step hole of the piston head and disengages from the upper lock groove, and the steel ball lock is unlocked emergently. The high-pressure medium pushes the piston rod to drive the lead screw nut to reversely drive the lead screw transmission pair to rotate, meanwhile, the piston rod emergently stretches out, and unlocking and piston rod stretching-out tasks are completed.

    本发明公开的一种应急解锁机电作动器,结构简单,简洁紧凑,性能可靠。本发明通过下述技术方案实现:伺服电机通过离合器轴连接盘齿轮传动机构带动丝杠齿轮转动,丝杠螺母通过端盖滑套,将复位弹簧约束在活塞头的中空台阶孔中,位于外筒内壁的上锁槽将钢球锁锁定在活塞头的导向槽中,应急工作时,离合器脱离,高压介质通过外筒外环面上的应急能源进入口进入外筒腔体,形成推动端盖滑套克服复位弹簧弹力的闭环应急回路,高压介质将端盖滑套前端面推送至活塞头中空台阶孔端面的钢球锁极限位,从上锁槽脱出,钢球锁应急开锁,高压介质推动活塞杆带动丝杠螺母反向驱动丝杠传动副旋转,同时活塞杆应急伸出,完成开锁和伸出活塞杆任务。


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    Title :

    Emergency unlocking electromechanical actuator


    Additional title:

    应急解锁机电作动器


    Contributors:
    KUANG KEHUAN (author) / LIU CHONGWU (author) / WU TONG (author) / HU MINGJING (author)

    Publication date :

    2023-04-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B64C AEROPLANES , Flugzeuge / F16H Getriebe , GEARING



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