According to the buffer with the telescopic function, an upper end cover and a lower end cover are arranged at the two ends of an outer cylinder, a floating piston used for isolating an air cavity from a buffer oil cavity is arranged in the outer cylinder, and one end of a core rod is installed on the upper end cover, then penetrates through the floating piston and is arranged in the air cavity and the buffer oil cavity; the outer cylinder is provided with an inflation valve used for inflating the air cavity and a pipe connector used for being communicated with a hydraulic system so that aviation hydraulic oil can flow into the actuating cavity, a buffer oil cavity used for containing the aviation hydraulic oil is formed in the actuating cavity, the pipe connector is communicated with a hydraulic pipeline in the actuating cavity, the actuating cavity is connected with a piston rod, and the piston rod is connected with the hydraulic system. A pressure relief valve is mounted at the other end of the core rod, and a pressure relief oil cavity is formed among the pressure relief valve, the core rod and the lower end cover; meanwhile, a sealing assembly is arranged on the piston rod. The undercarriage buffer has the functions of an undercarriage buffer and an actuating cylinder retracting and releasing function at the same time, functional parts of an undercarriage system movement mechanism are effectively simplified, and the structure is reasonable and reliable.

    一种带伸缩功能的缓冲器,其中,所述外筒两端设置有上端盖与下端盖,所述外筒内设置有用于将气腔与缓冲油腔隔离的浮动活塞,所述芯杆一端安装在上端盖上后穿过浮动活塞并置于气腔与缓冲油腔中;所述外筒上设置有用于向气腔内充气的充气活门、用于接通液压系统以向作动腔流入航空液压油的管接头,所述作动腔内设置有用于容纳航空液压油的缓冲油腔,所述管接头与作动腔内的液压管路接通,所述作动腔与活塞杆连接,所述芯杆另一端安装有泄压阀,且在泄压阀、芯杆与下端盖之间形成有泄压油腔;同时在活塞杆上设置有密封组件。本发明同时具备起落架缓冲器和收放作动筒的功能,有效简化起落架系统运动机构的功能部件,结构合理可靠。


    Access

    Download


    Export, share and cite



    Title :

    Buffer with telescopic function


    Additional title:

    一种带伸缩功能的缓冲器


    Contributors:
    ZHAO ZHENGUI (author) / ZOU YAN (author) / ZHU YUPU (author) / LI LEWEI (author) / LI LIANGLIANG (author) / HUANG ZHIJUN (author) / ZENG XIANGCAI (author) / LU SHENG (author) / ZHONG XIAOHONG (author)

    Publication date :

    2023-04-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16F SPRINGS , Federn / B64C AEROPLANES , Flugzeuge



    Vehicle-mounted telescopic anti-collision buffer cushion and vehicle provided with telescopic anti-collision buffer cushion

    CHEN ZHIWEI / LI GENWEN / HE BING et al. | European Patent Office | 2021

    Free access

    Telescopic aluminum honeycomb buffer device

    European Patent Office | 2020

    Free access

    Hydraulic cart with telescopic function

    HU JIAQI | European Patent Office | 2021

    Free access

    Telescopic mechanism in telescopic hitch buffer device for use in high speed electric multiple units

    LV XIAOZHONG / LIU HUI / CHEN KAI | European Patent Office | 2017

    Free access

    Barrier gate with telescopic function adjustment function

    LI XUEBING / ZHU XINGXING / YIN JUNWU et al. | European Patent Office | 2024

    Free access