The invention discloses a propeller blade counterweight arm structure which is used for being installed on a propeller blade and comprises a counterweight arm body, a connecting bolt and a positioning pin, and a bolt hole and a pin hole are formed in one side wall of the counterweight arm body; a lug boss is arranged at the root of the paddle, an arc-shaped connecting surface is arranged at the top of the lug boss, a connecting hole and a positioning hole are formed in the lug boss, a contact surface matched with the arc-shaped connecting surface is arranged at the bottom of the counterweight arm body, and an avoiding groove for reducing the contact area of the contact surface and the arc-shaped connecting surface is formed in the contact surface; the connecting bolt is connected into the connecting hole and the bolt hole in a matched mode, positioning pins are connected into the pin hole and the positioning hole, the structure is simple, assembling is convenient, and the assembling requirement and the production cost are reduced.
本发明公开了一种螺旋桨的桨叶配重臂结构,用以安装在桨叶上,其包括配重臂本体、连接螺栓及定位销,所述配重臂本体的一侧壁上开设有螺栓孔及销孔;所述桨叶的根部设有凸台,所述凸台的顶部设有弧形连接面,所述凸台上设有连接孔及定位孔,所述配重臂本体的底部设有配合弧形连接面的接触面,所述接触面上设有减少接触面与弧形连接面接触面积的避位槽;所述连接螺栓适配连接在所述连接孔及螺栓孔内,所述销孔及定位孔内连接有定位销,本发明结构简单,装配方便,降低了装配要求和生产成本。
Blade counterweight arm structure of propeller
一种螺旋桨的桨叶配重臂结构
2024-05-28
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |