The invention provides a single-piston electro-hydraulic servo constant-speed variable-pitch propeller mechanism. The single-piston electro-hydraulic servo constant-speed variable-pitch propeller mechanism comprises a fairing assembly, a propeller hub assembly and a plurality of propeller blades. The propeller hub assembly comprises a propeller hub shell, a variable-pitch mechanism and an elastic reset mechanism, wherein the propeller hub shell is installed in the fairing assembly, and a hydraulic cylinder is arranged on one side of the propeller hub shell; the variable-pitch mechanism comprises a piston, a variable-pitch block and an electric two-way oil pump, wherein the variable-pitch block is installed in the propeller hub shell in a sliding mode, the piston is installed in the hydraulic cylinder in a sliding mode and connected with the variable-pitch block, and the electric two-way oil pump is installed in the variable-pitch block and connected with the hydraulic cylinder; the elastic reset mechanism is installed in the propeller hub shell and located on the side, away from the hydraulic cylinder, of the propeller hub shel, and the elastic reset mechanism is connected with the variable-pitch block and used for driving the variable-pitch mechanism to reset; the multiple blades are distributed in the circumferential direction, penetrate through the fairing assembly and then are rotationally connected with the propeller hub shell, and the variable-pitch pins of the blades are connected with the variable-pitch blocks. The variable pitch control precision of the propeller is high, the response speed is high, the driving force is large, the loss power is small, the safety performance is high, and the application range is wide.

    本发明提出了一种单活塞电液伺服恒速变距螺旋桨机构,整流罩组件、桨毂总成和多个桨叶;桨毂总成包括桨毂壳体、变距机构和弹性复位机构,桨毂壳体安装在整流罩组件内,桨毂壳体一侧设置有液压缸;变距机构包括活塞、变距块、电动双向油泵,变距块滑动安装在桨毂壳体内,活塞滑动安装在液压缸内并且活塞与变距块连接,电动双向油泵安装在变距块内并与液压缸连接;弹性复位机构安装在桨毂壳体内并位于桨毂壳体远离液压缸一侧,弹性复位机构与变距块连接并用于带动变距机构复位;多个桨叶周向分布并且桨叶穿过整流罩组件后与桨毂壳体转动连接,桨叶的变距销与变距块连接。本发明对螺旋桨的变距控制精度高,响应速度快,驱动力大,损耗功率小,安全性能高,适用范围广。


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    Titel :

    Single-piston electro-hydraulic servo constant-speed variable-pitch propeller mechanism


    Weitere Titelangaben:

    一种单活塞电液伺服恒速变距螺旋桨机构


    Beteiligte:
    SHI LI (Autor:in) / HONG JUN (Autor:in) / PAN XINQI (Autor:in)

    Erscheinungsdatum :

    2021-05-28


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge



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