The invention provides a helicopter speed reducer straight tooth external spline elastic shaft torsional rigidity measuring method and device, and belongs to the technical field of torsional rigidity measuring tests.In the device, an elastic shaft is fixed to an elastic shaft mounting table, an L-shaped arm is fixed to the elastic shaft, a second fixed pulley is fixed to the L-shaped arm, and a first fixed pulley is fixed to the ground; the movable pulley is connected with the rack and connected with the steel cable, and the steel cable bypasses the first fixed pulley and the second fixed pulley to form a force transmission path. The tension sensor is fixed on the steel cable; the display unit is electrically connected with the tension sensor; when the elastic shaft is subjected to torsional deformation, the included angle between the loading force and the bearing arm in the direction of the steel cable does not change, so that the calculation error of the torque is reduced; the loading range of the load is not limited by the weight of the weight any more, and the detection accuracy is improved; and weights do not need to be increased or decreased in the loading process, and the loading efficiency is improved.

    本发明提供一种直升机减速器直齿外花键弹性轴扭转刚度测量方法及装置,属于扭转刚度测量试验技术领域,该装置中的弹性轴固定在弹性轴安装台上,L型臂固定在弹性轴上,第二定滑轮固定在L型臂上,第一定滑轮固定在地面上,动滑轮与台架连接,并与钢索连接,钢索绕过第一定滑轮和第二定滑轮形成一个传力路径;拉力传感器固定在钢索上,显示单元与拉力传感器电连接;在弹性轴发生扭转变形时,加载力沿着钢索方向与承载臂之间的夹角不会出现变化,减少了扭矩的计算误差;载荷加载范围不再受砝码重量限制,提高了检测的准确性;加载过程不需要增减砝码,提高了加载效率。


    Access

    Download


    Export, share and cite



    Title :

    Method and device for measuring torsional rigidity of straight tooth external spline elastic shaft of helicopter speed reducer


    Additional title:

    直升机减速器直齿外花键弹性轴扭转刚度测量方法及装置


    Contributors:
    HUANG AN (author) / LIU CHONG (author) / GAO CAIHONG (author) / XIE FANG (author) / WANG YIMIN (author) / YAO ZHI (author)

    Publication date :

    2024-11-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen



    Helicopter tail speed reducer and helicopter

    YU WEIBO / HU QIANG / LIU JIANBIN et al. | European Patent Office | 2020

    Free access

    Speed reducer for helicopter

    SUN ZHIWU | European Patent Office | 2022

    Free access

    Fatigue test device and method for rotor shaft of main speed reducer of helicopter

    LI SHUANG / XIN JINGLEI / QI HONGLIANG et al. | European Patent Office | 2023

    Free access

    Intermediate speed reducer and helicopter

    SONG YIMING / LI SHIBO / LI YUZHE et al. | European Patent Office | 2024

    Free access

    Method for measuring power loss of transition speed reducer of helicopter

    ZHOU QIANG / QIN QIANG / GUO CONG | European Patent Office | 2023

    Free access