The invention relates to the technical field of overhanging limiters, and discloses a helicopter main rotor overhanging limiter which comprises a synchronous ring, a connecting mechanism and a fixing mechanism, the synchronous ring is arranged on the fixing mechanism, the connecting mechanism is arranged on the synchronous ring, the connecting mechanism comprises a plunger body and a clamping groove, and the clamping groove is formed in the rear end of the plunger body. According to the suspension stopper for the main rotor of the helicopter, the plunger bodies are installed on the lower supporting plate of the propeller hub of the main rotor, the four plunger bodies are connected through the suspended synchronous ring, and the installation mode provides downward stopping limitation of the propeller blades of the main rotor; the eccentric distance of the four plunger bodies is designed to be consistent with the rotating direction of the main rotor blade in the working and rotating process, so that in the working and rotating process of the blade, the overhanging limiter can generate a rotating torque beneficial to rotation, and the torque can effectively restrain vertical flutter of the blade, so that the vertical flutter of the blade can be effectively restrained under the condition that the rotating speed of the blade is changed. And the blades can maintain a more stable state.

    本发明涉及悬垂限动器技术领域,且公开了一种直升机主旋翼悬垂限动器,包括同步环、连接机构和固定机构,所述同步环设置在固定机构上,所述连接机构设置在同步环上,所述连接机构包括柱塞体和卡槽,所述卡槽开设在柱塞体的后端。该一种直升机主旋翼悬垂限动器,通过柱塞体安装在主旋翼桨毂的下托板上,四个柱塞体中间通过一个悬空的同步环相连,这种安装方式提供了主旋翼桨叶的下行止动限制,其次,四个柱塞体的偏心距设计是和主旋翼桨叶在工作旋转过程中的旋转方向一致,因此在桨叶工作旋转过程中,悬垂限制器能产生一个有利旋转的旋转力矩,该力矩能有效抑制桨叶的上下颤振,使得桨叶在转速变化情况下,桨叶能维持更平稳的状态。


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    Title :

    Helicopter main rotor suspension stopper


    Additional title:

    一种直升机主旋翼悬垂限动器


    Contributors:
    SUN ZHIWU (author)

    Publication date :

    2023-04-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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