The invention discloses a flapping limiting device of a universal hinge propeller hub and a helicopter. The flapping limiting device is installed on a rotor shaft and located under a universal hinge propeller hub center piece. The lower part of the limiting disc is of an annular structure, and the upper part of the limiting disc is provided with a limiting conical surface; the rotor shaft is sleeved with the limiting disc and the limiting conical surface, and the limiting disc and the limiting conical surface are in clearance fit with the rotor shaft and can slide up and down along the rotor shaft; a limiting hole is formed in the self-propeller hub central piece, and the limiting conical surface of the limiting disc penetrates through the limiting hole; a limiting hole is formed in the first support, the long pull rod penetrates through the limiting hole, the axial direction of the long pull rod is parallel to the rotor shaft, the upper end of the long pull rod is fixed to the bottom of the limiting disc, and a fork-shaped piece is arranged at the lower end of the long pull rod; the upper end of the short pull rod is assembled on the fork-shaped piece through a pin shaft, and the lower end of the short pull rod is installed on the fork-shaped piece located at the upper end of the rocker arm through a pin shaft. The rocker arm penetrates through the second support and is connected with the second support through a rotating shaft; the pendulum bob is fixedly installed at the lower end of the rocker arm.

    本发明公开了一种万向铰桨毂的挥舞限动装置及直升机,安装在旋翼轴上,且位于万向铰桨毂中央件的正下方;限动盘的下部为环状结构,限动盘的上部设置有限动锥面;限动盘和限动锥面套在旋翼轴外部,与旋翼轴之间为间隙配合,可沿旋翼轴上下滑动;自桨毂中央件上开设有限动孔,限动盘的限动锥面穿过限动孔;第一支座上开设有限位孔,长拉杆穿过限位孔,长拉杆的轴向平行于旋翼轴,长拉杆的上端固定在限动盘的底部,长拉杆的下端设置有叉形件;所述短拉杆的上端通过销轴装配在叉形件上,短拉杆的下端通过销轴安装在位于摇臂上端的叉形件上;摇臂穿过第二支座,摇臂与第二支座之间通过转轴连接;摇臂的下端固定安装所述摆锤。


    Access

    Download


    Export, share and cite



    Title :

    Flapping limiting device of universal hinge propeller hub and helicopter


    Additional title:

    一种万向铰桨毂的挥舞限动装置及直升机


    Contributors:
    FAN PINGPING (author) / HU XIAOYU (author) / LI XIN (author) / LIU WEIYOU (author) / YANG GUANGYONG (author)

    Publication date :

    2024-02-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



    Universal tilting propeller helicopter

    JIANG FUYU | European Patent Office | 2021

    Free access

    Universal connecting device of multi-propeller helicopter

    JIANG FUYU | European Patent Office | 2022

    Free access

    Propeller hub device with waving constraint radial hinge shaft and helicopter with propeller hub device

    LAN XUDONG / ZHOU MING / LI HAO et al. | European Patent Office | 2021

    Free access