The main transmission shaft assembly comprises a main transmission shaft, an engine output shaft, an engine belt pulley, a driven belt pulley, a belt and a belt tensioning device, and the two ends of the main transmission shaft are in transmission connection with a main speed reducer and a tail speed reducer respectively; the main transmission shaft is a single part, the front end of the main transmission shaft is connected with a pinion shaft of the main speed reducer through an internal spline, the rear portion of the shaft is in transmission connection with a one-way clutch of the driven belt wheel through a key, the rear portion of the main transmission shaft is supported by a bearing assembly, and the bearing assembly is installed on a machine body framework through bolts. The tail end of the main transmission shaft is connected with the front flange plate through a bolt. The structure strength and stability are high, the space utilization rate of the helicopter is increased, the internal layout of the helicopter is more reasonable, the maintenance convenience is good, the stability of the internal structure can be improved, and the service life of the internal structure can be prolonged.

    本发明公开了一种直升机主传动轴组件,其包括主传动轴、发动机输出轴、发动机皮带轮、从动皮带轮、皮带、皮带张紧装置,主传动轴的两端分别与主减速器、尾减速器传动连接;主传动轴为一个单个零件,轴前端通过内花键与主减速器的小齿轮轴连接,轴后部与从动皮带轮的单向离合器之间通过键传动连接,主传动轴的后部由轴承组件支撑,该轴承组件通过螺栓安装在机身骨架上,主传动轴的末端通过一个螺栓与前法兰盘相连接。本发明其结构强度与稳定性高,提高了直升机的空间利用率,使得直升机内部布局更加合理,其维护便利性好,可以提高其内部结构的稳定性和使用寿命。


    Access

    Download


    Export, share and cite



    Title :

    Main transmission shaft assembly of helicopter


    Additional title:

    一种直升机主传动轴组件


    Contributors:
    QUAN MENGYU (author) / FU ZHIQIAO (author) / FENG JUNJIE (author) / ZHU HUI (author) / XU JIANWEI (author) / LIU KUN (author)

    Publication date :

    2024-11-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F16H Getriebe , GEARING



    Quick-release helicopter tail transmission shaft assembly

    YU QIANG / XIA FUCHUN / WANG JIEDONG et al. | European Patent Office | 2021

    Free access

    HELICOPTER MAIN ROTOR TRANSMISSION

    KESTLI ROMAN / SHTUKKI MARTIN | European Patent Office | 2021

    Free access

    Helicopter main reduction simulation shaft for fatigue test

    MEI HUOLIN / YING SHAOJUN / ZHANG JIN et al. | European Patent Office | 2023

    Free access

    Helicopter tail rotor hub shaft assembly and shaft sleeve assembly fatigue test device

    LIU NING / LUO BAOLONG | European Patent Office | 2023

    Free access

    Clamping-type main and auxiliary shaft transmission assembly of motorcycle

    LUO HOUJIANG / WANG LIN / ZHU LI | European Patent Office | 2020

    Free access