The invention discloses a buffering, retracting and extending integrated oil-gas type landing gear anti-crash buffer. The buffer comprises an outer cylinder, a floating piston, a piston rod, an upperoil filling valve, a lower oil filling valve and a filling nozzle; the piston rod is installed in the outer cylinder, the upper oil filling valve and the lower oil filling valve are located on the surfaces of the upper end and the lower end of the outer cylinder respectively, oil is injected into the buffer through the upper oil filling valve and the lower oil filling valve, the filling nozzle isconnected to the piston rod and located on the face perpendicular to the upper oil filling valve and the lower oil filling valve, and gas is injected into the buffer through the filling nozzle, the floating piston is arranged in an oil cavity, and an oil hole is formed in the upper portion of the floating piston. The buffer has the capacity of absorbing external impact to achieve buffering, and can achieve retracting and extending of the buffer by actively injecting oil to increase the pressure of an upper oil cavity and a lower oil cavity.

    本发明公开了一种缓冲收放一体化油气式起落架抗坠毁缓冲器,包括外筒、浮动活塞、活塞杆、上充油阀、下充油阀和充填嘴。活塞杆装入外筒中,上充油阀和下充油阀分别位于外筒上端和下端的表面,通过上充油阀和下充油阀向缓冲器内部注油,充填嘴连接在活塞杆上且该充填嘴位于与上、下充油阀垂直的面上,通过充填嘴向缓冲器内部注气,浮动活塞设置在油腔内,在浮动活塞的上方开有油孔。本发明不仅具有吸收外部撞击实现缓冲的能力,还可以通过主动注油增加上、下油腔压力来实现缓冲器的收放。


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    Title :

    Buffering, retracting and extending integrated oil-gas type landing gear anti-crash buffer


    Additional title:

    一种缓冲收放一体化油气式起落架抗坠毁缓冲器


    Contributors:
    WEI XIAOHUI (author) / HAN YUYING (author) / FANG XINGBO (author) / CHEN HU (author) / NIE HONG (author)

    Publication date :

    2020-09-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16F SPRINGS , Federn / B64C AEROPLANES , Flugzeuge



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