The invention relates to an aircraft arm and a variable-pitch aircraft. The aircraft arm comprises an arm plate, a driving part, a propeller assembly, a driving sleeve assembly and an actuating assembly; the driving part is arranged on the arm plate, and the driving part is provided with a driving shaft; the propeller assembly comprises a rotor head and a propeller, the rotor head is in driving connection with a driving shaft, and the propeller is rotationally arranged on the rotor head; the driving sleeve assembly is movably arranged on the driving shaft in a lifting manner and can drive thepropeller to rotate; and the actuating assembly is arranged on the arm plate and is in driving connection with the driving sleeve assembly. The propeller rotates around the axis of the propeller, so that a forward propeller posture can be quickly converted into a reverse propeller posture, stored rotating kinetic energy is converted into thrust in the direction away from the ground, and thereforethe purposes of further slowing down the falling speed of the variable-pitch aircraft and ensuring safe forced landing of the variable-pitch aircraft are achieved.

    本发明涉及一种机臂及变桨距飞行器,包括:臂板;驱动件,所述驱动件设置于所述臂板上,且所述驱动件设有驱动轴;螺旋桨组件,所述螺旋桨组件包括旋翼头和螺旋桨,所述旋翼头与所述驱动轴驱动连接,所述螺旋桨转动设置于所述旋翼头上;驱动套组件,所述驱动套组件升降活动设置于所述驱动轴上并能够驱动所述螺旋桨进行旋转;以及施动组件,所述施动组件设置于所述臂板上并与所述驱动套组件驱动连接。螺旋桨绕自身轴线发生旋转,从而能够从正桨姿态迅速转变为反桨姿态,将储存的旋转动能转化为离地方向的推力,从而实现进一步减缓变桨距飞行器下坠速度,保证变桨距飞行器安全迫降的目的。


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    Title :

    Aircraft arm and variable-pitch aircraft


    Additional title:

    机臂及变桨距飞行器


    Contributors:
    AN RAN (author) / WENG FAN (author)

    Publication date :

    2020-12-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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