The invention provides a propeller root connecting structure. The propeller root connecting structure comprises main components such as a composite material paddle, a metal paddle root, a paddle inner shaft, a winding one-way belt and filling glue. The composite material paddle is fixedly connected with a groove of the paddle inner shaft in a gluing mode through a main stress layer on the surface of the root of the composite material paddle and a winding one-way belt, and the paddle inner shaft is installed in a metal paddle root sleeve and fixedly connected with the metal paddle root sleeve through a screw. And the composite material paddle is firmly connected with the metal paddle root part through a paddle inner shaft screw, a surface carbon fiber layer, a friction part and a root part. Under the requirements of large diameter and large mass, the composite propeller blade and the metal propeller root of the propeller can be stably connected, the connection reliability of the composite propeller blade and the metal propeller root is improved, and the size and the weight of the connection part are effectively reduced.
本发明提供了一种螺旋桨桨根连接结构,包括:复合材料桨叶、金属桨根、桨叶内轴、缠绕单向带和填充胶等主要部件;复合材料桨叶通过其根部表面主受力层和缠绕单向带与桨叶内轴凹槽胶粘固定连接,桨叶内轴安装于金属桨根套筒内部并通过螺钉固连,复合材料桨叶通过桨叶内轴螺钉、表面碳纤维层与摩擦和根部粘接将桨叶与金属桨根部件稳固连接。本发明在大直径和大质量需求下,能够使螺旋桨的复合材料桨叶与金属桨根稳固连接,提高复合材料桨叶和金属桨根的连接可靠性,有效减小连接部分的体积和重量。
Propeller root connecting structure
一种螺旋桨桨根连接结构
2021-06-22
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |
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