The invention provides a folding rotor wing of a coaxial unmanned helicopter. The folding rotor wing comprises a variable-pitch propeller hub, a folding propeller clamp assembly, blades, a torsional spring and a centrifugal pendulum limiter, and the folding propeller clamp assembly is rotationally connected to the end portion of the variable-pitch propeller hub through a flapping bolt and a flapping bearing; the blades are connected to the end portion of the folding paddle clamp assembly; the flapping bolt is sleeved with the torsional spring, the upper torsional arm of the torsional spring stretches into the through hole of the variable-pitch propeller hub, and the lower torsional arm of the torsional spring abuts against the bottom of the folding propeller clamp assembly; and the centrifugal pendulum limiter is movably connected to the variable-pitch propeller hub through a rotating shaft, and after the folding propeller clamp assembly is unfolded, the centrifugal pendulum limiter isconnected to the end portion of the folding propeller clamp assembly in a clamped mode. The rotor wing avoids the blade beating phenomenon, the operation stability is high, the safety is high, and the installation is convenient.
本申请提供一种共轴无人直升机折叠旋翼,包括:变距桨毂、折叠桨夹组件、桨叶、扭簧和离心摆限动器,折叠桨夹组件通过挥舞螺栓和挥舞轴承转动连接在变距桨毂的端部;桨叶连接在折叠桨夹组件的端部;扭簧套设在挥舞螺栓上,扭簧的上扭臂伸入变距桨毂的通孔内,扭簧的下扭臂抵接在折叠桨夹组件的底部;离心摆限动器通过转轴活动连接在变距桨毂上,当折叠桨夹组件展开后,其卡接在折叠桨夹组件的端部。本申请旋翼不会出现打桨现象,运行的稳定性高,安全性高,安装方便。
Folding rotor wing of coaxial unmanned helicopter
一种共轴无人直升机折叠旋翼
2020-04-10
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
Rotor wing folding and unfolding control system of coaxial double-rotor-wing helicopter
European Patent Office | 2024
|Rotor wing operating system of coaxial double-rotor-wing helicopter
European Patent Office | 2024
|European Patent Office | 2024
|