The invention discloses a propeller for the unmanned aerial vehicle. The propeller comprises a propeller hub and propeller blades symmetrically arranged at the two ends of the propeller hub, and the propeller hub comprises a propeller hub main frame and a sleeve arranged on the inner side of the propeller hub main frame; the propeller hub main frame is connected with the sleeve through a rotatingjoint, the rotating joint is arranged along the transverse axis of the propeller, the rotating joint comprises a shaft sleeve and a pin column, the axis of the shaft sleeve is arranged along the transverse axis of the propeller, and the pin column is inserted into the shaft sleeve and can rotate around the axis of the shaft sleeve; the sleeve is coaxially and fixedly connected with a propeller rotating shaft; the propeller hub main frame is provided with variable-pitch pull rods which are symmetrically arranged about the transverse axis of the propeller, the variable-pitch pull rods are hingedto the propeller hub main frame through first hinge shafts, and the first hinge shafts are parallel to the transverse axis of the propeller. According to the propeller, the propeller pitches of the blades at the two ends of the propeller hub main frame can be adjusted at the same time only through vertical floating of the variable-pitch pull rods, the adjusting mode is simple and easy to achieve,a driving structure only needs to drive the variable-pitch pull rod, and a driving mechanism is greatly simplified.
本发明公开了一种用于无人机的螺旋桨,包括桨毂和对称布置在桨毂的两端的桨叶,桨毂包括桨毂主框和位于桨毂主框内侧的套筒;桨毂主框与套筒之间通过转动关节连接,且转动关节沿螺旋桨的横向轴线布置,转动关节包括轴套和销柱,轴套的轴心沿螺旋桨的横向轴线布置,销柱插设在轴套内且能够绕轴套的轴心转动;套筒与螺旋桨转轴同轴固定连接;桨毂主框上设置有关于螺旋桨的横向轴线对称布置的变距拉杆,变距拉杆和桨毂主框通过第一铰接轴铰接,且第一铰接轴平行于螺旋桨的横向轴线。该螺旋桨只需通过变距拉杆上下浮动即可对桨毂主框两端的桨叶的桨距同时调节,调节方式简单易于实现,并且驱动结构仅需驱动变距拉杆即可,驱动机构得到大幅简化。
Propeller for unmanned aerial vehicle
一种用于无人机的螺旋桨
02.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |
Propeller blade, unmanned aerial vehicle propeller and unmanned aerial vehicle
Europäisches Patentamt | 2024
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