The invention provides an undercarriage locking device and method. The undercarriage locking device comprises a shell, a first spring, a second spring and two oil through holes are arranged in the shell, the two oil through holes are communicated with a hydraulic system and an undercarriage locking hydraulic working cavity respectively, a piston assembly capable of locking the oil through holes through resetting of the first spring is arranged between the first oil through holes, and under the hydraulic effect, the piston assembly can lock the oil through holes through resetting of the second spring. The piston assembly is pushed to move, so that the hydraulic system and an oil way of the undercarriage locking hydraulic working cavity are opened or closed; a valve assembly capable of locking the oil through hole through resetting of a second spring is arranged on the second oil through hole piece, and under the hydraulic action, the valve assembly is pushed to move, so that a pressure relief oil way of the hydraulic system and the undercarriage locking hydraulic working cavity is opened or closed. The undercarriage locking reliability is improved, the undercarriage system design is simplified, the space is saved, the weight is reduced, and the safety is improved.

    本发明提供一种起落架锁定装置及方法。所述起落架锁定装置包括壳体,所述壳体内设有第一弹簧、第二弹簧及与液压系统和起落架锁定液压工作腔分别连通的两路通油孔,在第一路通油孔间设置有通过第一弹簧复位能锁闭该通油孔的活塞组件,在液压作用下,推动所述活塞组件移动,使液压系统与起落架锁定液压工作腔的油路的打开或关闭;在第二路通油孔件设置有通过第二弹簧复位能锁闭该通油孔的活门组件,在液压作用下,推动所述活门组件移动,使液压系统与起落架锁定液压工作腔的泄压油路的打开或关闭。本发明提高起落架锁定的可靠性,简化起落架系统设计,节约空间,减轻重量,提高安全性。


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    Title :

    Undercarriage locking device and method


    Additional title:

    一种起落架锁定装置及方法


    Contributors:
    YU XINPENG (author) / ZHANG CHENGLIANG (author) / LYU SHAOLI (author) / GUAN WEI (author) / DENG XIAOSHAN (author) / NING XIAODONG (author) / LIU JIANBO (author) / LI ZHAOXIN (author)

    Publication date :

    2023-04-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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