The double-coaxial double-rotor aircraft transmission system comprises a parallel operation speed reduction unit, reversing transmission units, a tail tilting reduction output unit and double-rotor output units symmetrically connected to the two sides of the reversing transmission units, and the reversing transmission units are symmetrically connected to the two sides of the parallel operation speed reduction unit; the tail anti-tilting output unit is mounted on the opposite side of the double-rotor output unit; according to the transmission system, two engines are adopted for output, after speed reduction is conducted through two-stage cylindrical gears of a parallel operation speed reduction unit, power is transmitted to a left rotor wing shaft, a right rotor wing shaft and a tail rotor through a reversing transmission unit and a tail tilting reduction output unit; the design that the two coaxial double rotors symmetrically distributed on the two sides of the helicopter body are provided with the tilting tail rotors is adopted, the power utilization efficiency, the hovering efficiency, the acceleration characteristic and the diversity and stability of control modes of the helicopter can be improved, and meanwhile the weight of the system can be reduced.

    本发明涉及一种带可倾转尾桨的双共轴双旋翼机传动系统及旋翼飞行器,包括并车减速单元、换向传动单元、尾减倾转输出单元以及对称连接在换向传动单元两侧的双旋翼输出单元,换向传动单元对称连接在并车减速单元两侧,尾减倾转输出单元安装在双旋翼输出单元相对一侧;该传动系统采用两个发动机输出,通过并车减速单元的两级圆柱齿轮减速后,再通过换向传动单元与尾减倾转输出单元分别将动力传输至左旋翼轴、右旋翼轴和尾桨;采用两组对称分布在机身两侧的共轴双旋翼并带可倾转尾桨的设计能够提高直升机动力利用效率、悬停效率、加速特性、操纵方式多样性与稳定性,同时有利于减轻系统的重量。


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    Title :

    Double-coaxial double-rotorcraft transmission system with tiltable tail rotor and rotorcraft


    Additional title:

    一种带可倾转尾桨的双共轴双旋翼机传动系统及旋翼飞行器


    Contributors:
    SONG CHAOXING (author) / ZHANG QINGCHENG (author) / LIU XING (author) / YUAN DECHEN (author)

    Publication date :

    2024-10-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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