The invention relates to the technical field of aircraft accessory design, in particular to an undercarriage stay bar unlocking electro-hydrostatic actuator and a working method.The undercarriage stay bar unlocking electro-hydrostatic actuator comprises a controller, a motor driver, a motor, a hydraulic pump, an overflow valve, a shuttle valve, a damping hole, an oil injection one-way valve, an exhaust one-way valve, an energy accumulator, a piston cylinder, a locking spring and a piston rod displacement sensor; the controller, the motor driver, the motor and the hydraulic pump are electrically connected in sequence, an inlet of the hydraulic pump is sequentially connected with the oil injection one-way valve, the exhaust one-way valve, the energy accumulator and an extending cavity of the piston cylinder through oil ways, and an outlet of the hydraulic pump is sequentially connected with the overflow valve, the shuttle valve and a retracting cavity of the piston cylinder through oil ways. The overflow valve is connected with an oil way of the oil injection one-way valve, the shuttle valve is connected with an oil way of the exhaust one-way valve through a damping hole, and the locking spring is coaxially installed on a piston rod shaft of the piston cylinder.

    本发明涉及飞机附件设计技术领域,具体涉及一种起落架撑杆解锁电静液作动器及工作方法,包括控制器、电机驱动器、电机、液压泵、溢流阀、梭阀、阻尼孔、注油单向阀、排气单向阀、蓄能器、活塞缸、上锁弹簧、活塞杆位移传感器,所述的控制器、电机驱动器、电机、液压泵依次电气连接,所述液压泵进口依次通过油路连接注油单向阀、排气单向阀、蓄能器、活塞缸的伸出腔,所述液压泵出口通过油路依次连接溢流阀、梭阀、活塞缸的缩回腔,所述的溢流阀与注油单向阀油路连接,所述的梭阀通过阻尼孔与排气单向阀油路连接,活塞缸的活塞杆轴上同轴安装上锁弹簧。


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    Title :

    Undercarriage stay bar unlocking electro-hydrostatic actuator and working method


    Additional title:

    一种起落架撑杆解锁电静液作动器及工作方法


    Contributors:
    ZHONG HAO (author) / LIU YULONG (author) / ZOU MENG (author)

    Publication date :

    2023-03-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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