The variable-pitch propeller hub structure comprises an upper propeller hub, a lower propeller hub, a propeller hub connecting bolt set, a propeller clamp and propeller blade variable-pitch assembly, a rotating shaft and an anti-loosening bolt set, rotating grooves are formed in the upper propeller hub and the lower propeller hub, and the propeller clamp and propeller blade variable-pitch assembly comprises a variable-pitch shaft, a thrust bearing, a deep groove ball bearing, a propeller clamp, a propeller blade and a propeller blade connecting bolt set. A shaft head of the variable-pitch shaft is installed on the rotating groove, a shaft body of the variable-pitch shaft is connected with inner rings of the thrust bearing and the deep groove ball bearing, outer rings of the thrust bearing and the deep groove ball bearing are installed on the inner wall of the upper propeller hub and the inner wall of the lower propeller hub, the propeller blades are installed on the propeller clamp, and the propeller clamp is fixedly connected with the variable-pitch shaft. A gap is reserved between the root part of the paddle and the paddle clamp in the axis direction of the paddle connecting bolt group; the variable pitch shaft, the thrust bearing, the deep groove ball bearing and other parts are installed in the upper propeller hub and the lower propeller hub, the radial size of the whole mechanism is reduced, the number of used parts is reduced, the structure is simple, and maintenance is easy.

    本发明公开了一种可变距螺旋桨桨毂结构,包括上桨毂、下桨毂、桨毂连接螺栓组、桨夹桨叶变距组件、旋转轴和防松螺栓组,上桨毂、下桨毂内设置有旋转槽,桨夹桨叶变距组件包括变距轴、推力轴承、深沟球轴承、桨夹、桨叶和桨叶连接螺栓组,变距轴的轴头安装在旋转槽上,变距轴的轴身与推力轴承、深沟球轴承的内圈连接,推力轴承、深沟球轴承的外圈安装在上桨毂、下桨毂的内壁上,桨叶安装在桨夹上,桨夹与变距轴固定连接,桨叶的根部与桨夹在沿着桨叶连接螺栓组的轴线方向上留有间隙;本发明通过将变距轴和推力轴承、深沟球轴承等零件安装在上桨毂、下桨毂的内部,减小整个机构的径向尺寸,减少零件使用数量,结构简单,维护简单。


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    Titel :

    Propeller hub structure of variable pitch propeller


    Weitere Titelangaben:

    一种可变距螺旋桨桨毂结构


    Beteiligte:
    YU ZHIMING (Autor:in) / NING HUIZI (Autor:in) / ZHONG BOWEN (Autor:in) / ZENG CHUJING (Autor:in)

    Erscheinungsdatum :

    2023-08-25


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge / B64U



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