The invention discloses a propeller hub device with a waving constraint radial hinge shaft, and belongs to the technical field of helicopters. The propeller comprises a center body, a plurality of flapping hinge shafts are evenly integrated on the center body in the radial direction, a bearing is assembled on each flapping hinge shaft, a propeller hub is assembled on each bearing, and a blade is installed at the lower end of each propeller hub; when the flapping hinge shaft rotates around the center body, the propeller hub and the blades at the lower end of the propeller hub are driven to rotate around the center body. According to the propeller hub device with the flapping constraint radial hinge shaft, the flapping hinge shaft is arranged in the radial direction, the propeller hub sleevedirectly rotates on the flapping hinge shaft to achieve flapping of the blades, the structure is simple, the number of parts is small, the turning point is minimum, the overall rigidity and strengthcan be improved, and therefore the effect of improving the inherent frequency of the blades is achieved.
本发明公开了一种有挥舞约束径向铰链轴的桨毂装置,属于直升机技术领域。包括:中心体,所述中心体上沿径向均匀集成有多个挥舞铰链轴,每个所述挥舞铰链轴上组装有轴承,每个所述轴承上组装有桨毂,每个所述桨毂的下端安装浆叶;所述挥舞铰链轴绕所述中心体转动时,带动所述桨毂以及所述桨毂下端的所述浆叶围绕所述中心体转动。使用本申请提供的有挥舞约束径向铰链轴的桨毂装置,采用挥舞铰链轴径向布置的方式,桨毂套在挥舞铰链轴上直接转动就能实现浆叶挥舞,结构简单,零件较少,转折点最小,即可达到提高整体刚强度,从而提高浆叶固有频率的效果。
Propeller hub device with waving constraint radial hinge shaft and helicopter with propeller hub device
一种有挥舞约束径向铰链轴的桨毂装置及具有其的直升机
2021-01-26
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
Flapping limiting device of universal hinge propeller hub and helicopter
European Patent Office | 2024
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