The invention discloses a large unmanned helicopter rotor blade root structure which comprises a first connecting piece used for being detachably connected with a blade hub flange structure, a core shaft arranged on the first connecting piece and a second connecting piece arranged on the core shaft in a sleeving mode, and the second connecting piece is movably connected with the core shaft. The mandrel is connected with the root of the paddle through a second connecting piece, the second connecting piece is provided with a variable pitch system used for adjusting the angle of the paddle, and the variable pitch system is movably connected with the mandrel. Compared with a traditional propeller hub, the rotor propeller hub structure provided with the rotor propeller hub structure has the advantages that the number of parts is smaller, the rotor propeller hub structure provided with the rotor propeller hub structure is more compact than the traditional propeller hub, the machining difficulty is lowered, and maintenance and overhaul become easier. Compared with a traditional propeller hub, the rotor propeller hub structure provided by the invention has the advantages that the weight of a whole rotor system is lighter, so that the energy consumption is lower, and the overall performance is improved.
本发明公开了一种大型无人直升机旋翼桨根结构,包括:用于与桨毂法兰结构可拆卸连接的第一连接件、设置在所述第一连接件上的芯轴,以及套设在所述芯轴上的第二连接件,所述第二连接件与所述芯轴活动连接,所述芯轴通过第二连接件与桨叶的根部连接,所述第二连接件上设置有用于调节桨叶角度的变距系统,所述变距系统与所述芯轴活动连接。安装有本发明的旋翼桨毂结构相较于传统的桨毂而言,零件数量更少,并且安装有本发明的旋翼桨毂结构具有比传统桨毂更紧凑的结构,不仅降低了加工难度,也使得维护和检修变得更加容易。安装有本发明的旋翼桨毂结构,相较于传统桨毂而言整个旋翼系统的重量更轻,从而使得能耗也更低,提高整体性能。
Rotor blade root structure of large unmanned helicopter
一种大型无人直升机旋翼桨根结构
2024-08-20
Patent
Electronic Resource
Chinese
IPC: | B64U |
European Patent Office | 2024
|Main rotor blade fixing assembly for unmanned helicopter
European Patent Office | 2021
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