The invention belongs to the technical field of helicopter design, and provides a coaxial helicopter and a rotor wing system thereof. The rotor wing system comprises an upper rotor wing assembly and alower rotor wing assembly, the upper rotor wing assembly comprises a first propeller hub and a first propeller blade, wherein one end of the first propeller blade is connected with the first propeller hub, and the other end of the first propeller blade tilts upwards; and the lower rotor wing assembly comprises a second propeller hub and a second propeller blade, wherein one end of the second propeller blade is connected with the second propeller hub and the other end of the second propeller blade tilts downwards. According to the rotor wing system of the coaxial helicopter provided by the invention, on the premise of ensuring that the first propeller blade and the second propeller blade do not have a propeller beating accident during high-speed maneuvering flight of the helicopter, the minimization of the distance between the first propeller disc formed during rotation of the first propeller blade and the second propeller disc formed during rotation of the second propeller blade is realized, and the safety coefficient and the stability of the helicopter during high-speed maneuvering flight are improved.

    本发明属于直升机设计技术领域,提供了一种共轴直升机及其旋翼系统,旋翼系统包括上、下旋翼组件,上旋翼组件包括第一桨毂和一端与第一桨毂连接的第一桨叶,第一桨叶的另一端向上翘起,下旋翼组件包括第二桨毂和一端与第二桨毂连接的第二桨叶,第二桨叶的另一端向下翘起。本发明提供的共轴直升机的旋翼系统,在保证直升机高速机动飞行时第一桨叶和第二桨叶不会发生打桨事故的前提下,实现了第一桨叶旋转时所构成的第一桨盘和第二桨叶旋转时所构成的第二桨盘之间的间距的最小化,提高了直升机高速机动飞行时的安全系数和稳定性。


    Access

    Download


    Export, share and cite



    Title :

    Coaxial helicopter and roto wing system thereof


    Additional title:

    一种共轴直升机及其旋翼系统


    Contributors:
    FAN JIAMING (author)

    Publication date :

    2021-03-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



    Rotor wing operating system of coaxial double-rotor-wing helicopter

    WU JIREN / WU JING | European Patent Office | 2024

    Free access

    Folding rotor wing of coaxial unmanned helicopter

    MENG CHENG / HAN SHUHONG / YANG SHITAO et al. | European Patent Office | 2020

    Free access

    Coaxial helicopter and flexible variable-pitch rotor wing

    FAN JIAMING | European Patent Office | 2021

    Free access

    Rotor wing folding and unfolding control system of coaxial double-rotor-wing helicopter

    WU JIREN / KE LILI / WU JING | European Patent Office | 2024

    Free access

    Coaxial helicopter and control method thereof

    GE XUN / SHEN YUAN / GUO SHUZHEN et al. | European Patent Office | 2023

    Free access