The invention discloses a helicopter propeller composite material blade in the field of composite material products, which is composed of a D-shaped crossbeam, an upper skin, a lower skin, a front edge skin, front edge foam, trailing edge foam, a trailing edge strip, a counterweight box, two blade tip caps and two blade root caps, and the D-shaped crossbeam, the upper skin, the lower skin, the front edge skin, the trailing edge strip, the two blade tip caps and the two blade root caps are all made of composite materials. According to the invention, the assembly workload and the assembly difficulty are reduced, the use of standard parts such as bolts is reduced, the precision of the aerodynamic configuration surface of the paddle is improved, the weight of the paddle is reduced, and the fatigue life of the paddle is prolonged.
本发明公开了复合材料制品领域内的一种直升机螺旋桨复合材料桨叶,由D型大梁、上蒙皮、下蒙皮、前缘蒙皮、前缘泡沫、尾缘泡沫、后缘条、配重盒、两叶尖冒和两叶根冒组成,D型大梁、上蒙皮、下蒙皮、前缘蒙皮、后缘条、两叶尖冒、两叶根冒均为复合材料,配重盒为金属材料,本发明降低了装配工作量和装配难度,减少了螺栓等标准件的使用,提高了桨叶气动外形面的精度,减轻了桨叶重量,提高了桨叶的疲劳寿命。
Composite material blade of helicopter propeller
一种直升机螺旋桨复合材料桨叶
2023-11-28
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |
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