The invention provides an electro-hydraulic servo constant-speed variable-pitch propeller mechanism which comprises a fairing assembly, a propeller hub assembly and a plurality of blades. The propeller hub assembly comprises a propeller hub shell and a variable pitch mechanism, the propeller hub shell is installed in the fairing assembly, and a front hydraulic cylinder and a rear hydraulic cylinder are installed on the two sides of the propeller hub shell respectively; the variable-pitch mechanism comprises a front piston, a rear piston, a variable-pitch block and an electric two-way oil pump, the variable-pitch block is installed in the propeller hub shell in a sliding mode, the front piston and the rear piston are installed in the front hydraulic cylinder and the rear hydraulic cylinder in a sliding mode respectively 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 front hydraulic cylinder and the rear hydraulic cylinder; the multiple blades are distributed in the circumferential direction and penetrate through the fairing assembly to be rotationally connected with the propeller hub shell, and the variable-pitch pins of the blades are connected with the variable-pitch block. 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.

    本发明提出了一种电液伺服恒速变距螺旋桨机构,包括整流罩组件、桨毂总成和多个桨叶;桨毂总成包括桨毂壳体和变距机构,桨毂壳体安装在整流罩组件内,桨毂壳体两侧分别安装有前液压缸、后液压缸;变距机构包括前活塞、后活塞、变距块、电动双向油泵,变距块滑动安装在桨毂壳体内,前活塞、后活塞分别滑动安装在前液压缸、后液压缸内并且前活塞、后活塞均与变距块连接,电动双向油泵安装在变距块内并与前液压缸、后液压缸连接;多个桨叶周向分布且桨叶穿过整流罩组件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 :

    Electro-hydraulic servo constant-speed variable-pitch propeller mechanism


    Weitere Titelangaben:

    一种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 :

    2021-05-25


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge



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