The invention provides a helicopter tail propeller. The propeller comprises an input shaft connected with a tail transmission shaft of a helicopter, and an output shaft which is connected with a tailpropeller of the helicopter, wherein the input shaft is connected with the output shaft, a first bearing and a second bearing are arranged outside the output shaft, the first bearing is close to a tail propeller and is used for bearing thrust and bending moment transmitted by the tail propeller, the second bearing is close to the tail transmission shaft and is used for supporting the output shaft,a casing is arranged outside the first bearing and the second bearing, and the casing is connected with a helicopter body of a helicopter so that loads generated by the tail propeller are transmittedto the casing through the first bearing and then transmitted to the helicopter body of the helicopter through the casing. The propeller is advantaged in that the propeller does not contain a speed reduction structure, so the structure of the propeller is simpler, the weight is lighter, the tail transmission shaft of the helicopter can be prevented from bearing excessive axial force, and the safety risk is favorably reduced.

    本发明提供了一种直升机尾推进器,包括:输入轴,与直升机的尾传动轴连接;输出轴,与所述直升机的尾螺旋桨连接;所述输入轴和所述输出轴相连,且所述输出轴的外部设置有第一轴承和第二轴承;所述第一轴承靠近所述尾螺旋桨,用于承受所述尾螺旋桨传递的推力和弯矩;所述第二轴承靠近所述尾传动轴,用于支撑所述输出轴;所述第一轴承和所述第二轴承的外部设置有机匣,所述机匣与所述直升机的机身连接,使所述尾螺旋桨产生的载荷通过所述第一轴承传递至所述机匣,再通过所述机匣传递至所述直升机的机身上。该推进器不含减速结构,使得推进器的结构更简单、重量更轻,且能够避免直升机的尾传动轴承受过大的轴向力,有利于降低安全风险。


    Access

    Download


    Export, share and cite



    Title :

    Helicopter tail propeller


    Additional title:

    一种直升机尾推进器


    Contributors:
    LIU ZHIQIANG (author) / DING WENQIANG (author) / SHI QIANLIE (author) / SHI BING (author) / SUN YUFEI (author)

    Publication date :

    2020-06-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



    Helicopter tail propeller pitch changing mechanism

    CHEN HONGYU / WEI HONGBO / YUAN BIAO et al. | European Patent Office | 2021

    Free access

    Multifunctional full-load helicopter with tail propeller

    FENG ZHIJUN / HUANG ZHIYONG / LI FANG et al. | European Patent Office | 2020

    Free access

    Coaxial double-rotor belt tail propeller transmission system and helicopter

    WU ZHIGUANG | European Patent Office | 2020

    Free access

    Planetary propeller helicopter

    JIANG FUYU | European Patent Office | 2020

    Free access