The invention discloses a hinge-free propeller hub and a helicopter, belongs to the technical field of helicopters, and solves the problems that a hinge-free propeller hub in the prior art adopts a metal bearing and a metal hook, is complex, has high requirements on sealing, assembling, lubricating, precision and working environment, and can cause abrasion, indentations and gaps after long-time working. The hinge-free propeller hub comprises an elastic bearing and a propeller hub central part, the propeller hub central part is arranged on the outer wall of the elastic bearing, and a propeller clamp of the helicopter is arranged on the inner wall of the elastic bearing; the elastic bearing comprises an outer connecting layer, a lamination layer and an inner connecting layer which are sequentially connected in a sleeved mode from outside to inside. The outer connecting layer is fixedly connected with the propeller hub central part; the inner connecting layer is fixedly connected with the paddle clamp; the laminated layer comprises an elastic layer and a rigid layer which are alternately connected in a sleeved mode in the radial direction. The hingeless propeller hub can be used for connecting the propeller hub and the propeller clamp.

    本发明公开了一种无铰式桨毂和直升机,属于直升机技术领域,解决了现有技术中无铰式桨毂采用金属轴承金钩复杂、对密封、装配、润滑、精度和工作环境要求高以及长时间工作会出现磨损、压痕和间隙的问题。该无铰式桨毂包括弹性轴承和桨毂中央件;桨毂中央件设于弹性轴承的外壁,直升机的桨夹设于弹性轴承的内壁;弹性轴承从外至内包括依次套接的外连接层、叠层和内连接层;外连接层与桨毂中央件固定连接;内连接层与桨夹固定连接;叠层包括沿径向交替套接的弹性层和刚性层。该无铰式桨毂可用于桨毂和桨夹的连接。


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    Title :

    Hingeless propeller hub and helicopter


    Additional title:

    一种无铰式桨毂和直升机


    Contributors:
    MENG CHENG (author) / SUN TAO (author) / ZHANG YAJUN (author) / ZHANG RUIFANG (author) / TIAN LING (author) / TIAN GANGYIN (author)

    Publication date :

    2023-10-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge