The invention relates to a tandem unmanned helicopter. The tandem unmanned helicopter comprises: a helicopter body, wherein a front rotor system and a rear rotor system are mounted on the helicopter body; a power device; a power supply device; and a transmission mechanism. The front rotor system comprises a front rotor and a front rotor main shaft; the rear rotor system comprises a rear rotor and a rear rotor main shaft; the rotor plane of the front rotor inclines forwards; the front rotor main shaft and the rear rotor main shaft are rotationally installed on the helicopter body; the transmission mechanism comprises a transfer case, and a rear transmission shaft is installed between an output shaft of the transfer case and the rear rotor main shaft; the front rotor main shaft is in transmission connection with a front transmission shaft; and a universal joint is arranged between the front transmission shaft and the output shaft of the transfer case. According to the invention, the universal joint is adopted, the front transmission shaft inclines forwards, the front transmission shaft is coaxial with the input shaft of a front gearbox of the front rotor system, and therefore, the front rotor system and the rear rotor system can use the same gearbox, the effect that the rotor plane of the front rotor inclines forwards is achieved, and design, production and installation cost is greatly reduced.

    本发明涉及一种纵列式无人直升机,包括机体,机体上安装有前旋翼系统、后旋翼系统;动力装置;供电装置;还包括传动机构;前旋翼系统包括前旋翼和前旋翼主轴,后旋翼系统包括后旋翼和后旋翼主轴,前旋翼的旋翼平面向前倾斜,前旋翼主轴和后旋翼主轴均转动安装在机体上,传动机构包括分动箱,分动箱的输出轴和后旋翼主轴之间安装有后传动轴,前旋翼主轴传动连接有前传动轴,前传动轴和分动箱的输出轴之间设有万向节;采用万向节,使前传动轴前倾,前传动轴与前旋翼系统的前齿轮箱输入轴同轴,这样前旋翼系统和后旋翼系统可以使用相同的齿轮箱,并达到前旋翼的旋翼平面向前倾斜的效果,大大降低了设计、生产和安装成本。


    Access

    Download


    Export, share and cite



    Title :

    Tandem unmanned helicopter


    Additional title:

    一种纵列式无人直升机


    Contributors:
    YANG FAN (author)

    Publication date :

    2021-06-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



    Tandem double-rotor unmanned helicopter

    TAO LIANG / LI WENMING | European Patent Office | 2023

    Free access

    Tandem double-rotor unmanned helicopter

    WANG JIANGPING | European Patent Office | 2024

    Free access

    Tandem double-rotor unmanned transport helicopter

    WANG ZHEN / GU WENBIN / HE CHANGQI et al. | European Patent Office | 2024

    Free access

    Double-engine tandem type unmanned helicopter

    FU ZHENNAN / DU YINGLIU / YAN JINLIANG et al. | European Patent Office | 2024

    Free access

    Fixed-pitch tandem type electric unmanned helicopter

    ZHANG SENYUE / LI YIBO / LIU BAILUN et al. | European Patent Office | 2020

    Free access