The invention provides a coaxial reverse propeller helicopter. The helicopter comprises a helicopter body, a center shaft, an upper rotor wing assembly, a lower rotor wing assembly and a variable pitch assembly, the center shaft is arranged on the helicopter body, the upper rotor wing assembly and the lower rotor wing assembly are connected with the center shaft, the upper rotor wing assembly and the lower rotor wing assembly are located on the same side of the helicopter body, the upper rotor wing assembly comprises an upper propeller clamp and an upper rotor wing driving assembly, the upper rotor wing driving assembly drives the upper propeller clamp to rotate, the lower rotor wing assembly comprises a lower propeller clamp and a lower rotor wing driving assembly, and the lower rotor wing driving assembly drives the lower propeller clamp to rotate; the variable pitch assembly comprises a variable pitch driving assembly, a first pull rod and a connecting rod, the first pull rod is connected with the connecting rod, the connecting rod is hinged to the propeller clamps, the variable pitch driving assembly drives the first pull rod to move, and the connecting rod drives the upper propeller clamp or the lower propeller clamp to rotate. By using the above structure, the pitch of the upper rotor assembly is changed, course control and locking of the helicopter are carried out through different reverse torque generated by the pitch difference between the upper rotor wing assembly and the lower rotor wing assembly, so that flight control is more accurate.

    本发明提供一种共轴反桨直升机包括机身、中心轴、上旋翼组件、下旋翼组件和变距组件,中心轴设置在机身上,上旋翼组件和下旋翼组件分别与中心轴连接,上旋翼组件和下旋翼组件位于机身的同一侧,上旋翼组件包括上桨夹和上旋翼驱动组件,上旋翼驱动组件驱动上桨夹转动,下旋翼组件包括下桨夹和下旋翼驱动组件,下旋翼驱动组件下桨夹转动;变距组件包括变距驱动组件、第一拉杆和连接杆,第一拉杆与连接杆连接,连接杆铰接于桨夹,变距驱动组件驱动第一拉杆移动,连接杆驱动上桨夹或下桨夹转动,采用以上结构,改变上旋翼组件螺距,通过上下旋翼组件之间的螺距差异产生的不同反扭力来进行直升机的航向操纵与锁定,使飞行控制更精准。


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    Title :

    Coaxial reverse propeller helicopter


    Additional title:

    共轴反桨直升机


    Contributors:
    LUO JUN (author)

    Publication date :

    2021-06-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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