The invention discloses a main transmission system of a coaxial dual-rotor helicopter. The main transmission system comprises a lower rotor transmission system and an upper rotor transmission system. The lower rotor wing transmission system comprises a lower rotor wing propeller hub, a lower rotor wing shaft and a lower rotor wing propeller hub joint. The upper rotor wing transmission system comprises an upper rotor wing propeller hub, an upper rotor wing shaft and an upper rotor wing propeller hub joint. A main rotor speed reducer output flange transmits power to the lower rotor wing shaft through an elastic coupling, a lower rotor torque balance, an elastic coupling and an inner spline 1, and the lower rotor wing shaft and the lower rotor propeller hub are matched for output. Meanwhile, an output flange of the main rotor speed reducer transmits power to the upper rotor wing shaft through an elastic coupling, an upper rotor torque balance, an elastic coupling and an internal spline 2, and the upper rotor wing shaft is matched with the upper rotor propeller hub and drives an upper rotor wing to move. The transmission system can drive the upper rotor wing and the lower rotor wing to move at the same time and keep the same rotating speed in opposite directions. The transmission system has the advantages of reliability, safety, simple design and adjustable structure.

    本发明公开了一种共轴双旋翼直升机主传动系统,包括下旋翼传动系统和上旋翼传动系统。下旋翼传动系统包括下旋翼桨毂、下旋翼轴和下旋翼桨毂接头,上旋翼传动系统包括上旋翼桨毂、上旋翼轴和上旋翼桨毂接头。主旋翼减速器输出法兰将功率通过弹性联轴节、下旋翼扭矩天平、弹性联轴节以及内花键1传递给下旋翼轴,下旋翼轴与下旋翼桨毂配合输出。同时主旋翼减速器输出法兰通过弹性联轴节、上旋翼扭矩天平、弹性联轴节以及内花键2将功率传递给上旋翼轴,上旋翼轴与上旋翼桨毂配合并驱动上旋翼运动。该传动系统可同时驱动上旋翼和下旋翼运动,并保持相同反向的转速。该传动系统具备可靠性、安全性,设计简单可调结构的优势。


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    Title :

    Main transmission system of coaxial double-rotor helicopter


    Additional title:

    一种共轴双旋翼直升机主传动系统


    Contributors:
    WEI JING (author) / WANG JING (author) / LI SIFAN (author) / GUO AIGUI (author)

    Publication date :

    2021-08-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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