According to the helicopter rotor system, an annular cabin is arranged in an inner cavity of an annular shell, a main rotor structure is arranged in the outer center space through a main speed reducer supporting frame, a tail rotor cabin is formed at the rear end through a tail rotor shell, and a tail rotor is arranged in the tail rotor cabin; the engine is located at the rear part of the annular cabin, backwards outputs power to the tail rotor through a power shaft and forwards outputs power to the main speed reducer through a transmission shaft, and the main speed reducer transmits the decelerated power to the main propeller hub and the main blades through a main rotor shaft; the small pull rod is hinged to an outer edge fork of the moving ring through a ball bearing at the lower end of the small pull rod and is hinged to a transverse shaft at the outer end of the main paddle through a ball bearing at the upper end of the small pull rod; the multiple steering engines are evenly distributed on the same horizontal plane and perpendicularly installed on the main speed reducer supporting frame. According to the invention, a non-open type, supported and limited wingtip design is adopted, so that the wingtip linear velocity of the main rotor of the helicopter can easily break through the sound velocity without generating strong flutter, and a new scheme is provided for double improvement of the speed and the load of the helicopter.

    本发明提供一种直升机旋翼系统,该系统中环形壳体内部空腔设有环形舱,外部中心空间通过主减速器支撑架布置主旋翼结构,后端通过尾桨壳体形成尾桨舱,尾桨舱内设有尾桨;发动机位于环形舱后部,通过动力轴向后输出动力给尾桨,通过传动轴向前输出动力给主减速器,主减速器通过主旋翼轴将减速后的动力传递给主桨毂和主桨叶;小拉杆通过其下端的球轴承铰接在动环的外缘叉尔上,通过其上端的球轴承铰接在主桨叶外端横轴上;多个舵机均匀分布在同一水平面上,并垂直安装在主减速器支撑架上;本发明采用非开放式的、有支撑、有限位的翼尖设计,使得直升机主旋翼翼尖线速度可以轻松突破音速,而不发生强烈的颤振,为直升机速度和载重双提升提供新方案。


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    Title :

    Helicopter rotor system


    Additional title:

    一种直升机旋翼系统


    Contributors:
    LI JINSHENG (author) / SONG LINQING (author) / BA TANGYAO (author) / WANG CHAOWEI (author) / ZHANG ZHIJIE (author)

    Publication date :

    2025-01-03


    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



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