The invention discloses a double-shaft electric ducted fan device which comprises an electric duct, a fan, a fixed shaft and a motor rotating shaft. The fixed shaft and the electric duct are coaxially arranged; the motor rotating shaft and the fan are axially arranged along the electric duct, the motor rotating shaft rotatably connects the fan with the electric duct, and the fan can synchronously rotate with the motor rotating shaft; the fixed shaft is clamped with the fan, the fixed shaft comprises a fixed shaft body and a fixed shaft bearing, and the fan can drive the fixed shaft body to rotate along the electric duct. The fan and the electric duct are connected through the fixed shaft and the motor rotating shaft, and dynamic and static separation of the fan and the electric duct is achieved through the fixed shaft body and the fixed shaft bearing; the fixed shaft carries the load of the rotating shaft of the motor, so that double-bearing loading is realized; the axial displacement, the radial displacement and the jerk value of the motor rotating shaft are guaranteed, and the motor rotating shaft is effectively protected; the risk of failure of the whole propulsion system caused by damage of a motor rotating shaft is reduced; the wind resistance and the friction force are reduced; the double-shaft design effectively controls an airflow path, and pneumatic efficiency is improved.

    本发明公开了一种双轴电涵道风扇装置,包括电涵道、风扇、定轴和电机转轴;定轴与电涵道同轴设置;电机转轴和风扇沿电涵道轴向设置,电机转轴将风扇与电涵道转动连接,风扇能够与电机转轴同步转动;定轴与风扇卡接,定轴包括定轴轴体和定轴轴承,风扇能够带动定轴轴体沿电涵道转动。本发明将风扇与电涵道之间通过定轴和电机转轴双轴连接,通过定轴轴体和定轴轴承实现了风扇和电涵道的动静分离;定轴分载了电机转轴的载荷,实现了双轴承载;保障了电机转轴的轴向位移、径向位移以及跳动量,有效地保护了电机转轴;降低了因电机转轴的破坏而导致整个推进系统失效的风险;降低了风阻和摩擦力;双轴设计有效的控制了气流路径,提高气动效率。


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    Title :

    Double-shaft electric ducted fan device


    Additional title:

    一种双轴电涵道风扇装置


    Contributors:
    LIU WEI (author) / HUI YANNIAN (author) / ZHOU QIAO (author)

    Publication date :

    2024-11-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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