The invention relates to the technical field of tilt-rotor unmanned aerial vehicles, in particular to a propeller hub system of a tilt-rotor unmanned aerial vehicle. Comprising a propeller hub center piece, variable-pitch cylinders, an automatic inclinator and a steering engine, the propeller hub center piece is fixedly connected with a main shaft of the steering engine, the propeller hub center piece is provided with the multiple rotatable variable-pitch cylinders in the circumferential direction, and the variable-pitch cylinders are used for installing blades; the automatic inclinator is arranged on the main shaft and has the freedom degree of axial movement and circumferential rotation. The automatic inclinator is hinged to the steering engine through a plurality of sets of lower connecting rod assemblies and hinged to the variable-pitch cylinders through a plurality of torsion arms. The structure is compact, meanwhile, the number of parts is reduced, the effects of light weight, improvement of the overall rigidity and strength and improvement of the inherent frequency of the blades are achieved, the radius of the propeller is reduced, and the size of the whole propeller is optimized.
本发明涉及倾转旋翼无人机技术领域,特别涉及一种倾转旋翼无人机桨毂系统。包括桨毂中心件、变距筒、自动倾斜器及舵机,其中桨毂中心件与舵机的主轴固定连接,桨毂中心件上沿周向设有多个可转动的变距筒,变距筒用于安装桨叶;自动倾斜器设置于主轴上,具有沿轴向移动和周向转动自由度;自动倾斜器通过多组下连杆组件与舵机铰接,通过多个扭臂与各变距筒铰接。本发明结构紧凑,同时减少了零件数量,达到了轻量化,提高整体刚强度,从而提高浆叶固有频率的效果,实现了降低螺旋桨半径,实现整机尺寸优化。
Tilt rotor unmanned aerial vehicle propeller hub system
一种倾转旋翼无人机桨毂系统
14.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |
CONTROL METHOD OF TILT ROTOR UNMANNED AERIAL VEHICLE, AND TILT ROTOR UNMANNED AERIAL VEHICLE
Europäisches Patentamt | 2021
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