The invention provides an adjustable truss type multi-supporting-column undercarriage, and belongs to the field of aircraft undercarriage.The adjustable truss type multi-supporting-column undercarriage comprises undercarriage supporting columns, lower rocker arms, rotating shafts, side supporting rods, supports, buffers, upper rocker arms and front supporting rods, the undercarriage supporting columns and the lower rocker arms are in pivot joint through the rotating shafts, machine wheels are installed on the lower rocker arms, and the side supporting rods are arranged on the lower rocker arms; the side supporting rod is of a length-adjustable structure, one end of the side supporting rod is hinged to the rotating shaft, the other end of the side supporting rod is connected to the aircraft body structure, the support is installed on the rotating shaft pivoted to the undercarriage supporting column and the lower rocker arm and used for supporting the undercarriage supporting column of the rear undercarriage, one end of the buffer is hinged to the lower rocker arm, and the other end of the buffer is hinged to the upper rocker arm. The upper rocker arm is pivoted to the undercarriage supporting column, the buffer is driven to move by driving the upper rocker arm, then the lower rocker arm can rotate relative to the rotating shaft, and folding and unfolding of the undercarriage are achieved.

    本申请提供了一种可调节桁架式多支柱起落架,属于飞机起落架领域,该可调节桁架式多支柱起落架包括:起落架支柱、下摇臂、转轴、侧撑杆、支架、缓冲器、上摇臂及前撑杆,其中,起落架支柱与下摇臂通过转轴枢接,下摇臂上安装有机轮,所述侧撑杆为长度可调节的结构,其一端与转轴铰接、另一端连接至机体结构上,所述支架安装在枢接起落架支柱与下摇臂的转轴上,用于支撑后一组起落架的起落架支柱,所述缓冲器一端与下摇臂铰接、另一端与上摇臂铰接,所述上摇臂枢接在起落架支柱上,通过驱动上摇臂带动缓冲器运动,进而能够使下摇臂相对与转轴转动,从而实现起落架的收放。


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    Title :

    Adjustable truss type multi-strut landing gear


    Additional title:

    一种可调节桁架式多支柱起落架


    Contributors:
    YANG YAN (author) / FENG JUN (author) / YU HAITAO (author) / ZHANG LIJUN (author)

    Publication date :

    2025-02-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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