The invention relates to a coaxial double propeller helicopter middle propeller pitch control device, and belongs to the structure technical field of helicopters. According to the coaxial double propeller helicopter middle propeller pitch control device, a coaxial double propeller helicopter comprises an upper propeller hub (2) and a lower propeller hub (18); the outside of the upper propeller hub (2) is provided with propeller blades I (1); and the outside of the lower propeller hub (18) is provided with propeller blades II (16); and the coaxial double propeller helicopter middle propeller pitch control device is arranged between the upper propeller hub (2) and the lower propeller hub (18). The coaxial double propeller helicopter middle propeller pitch control device is arranged on the middle part of a middle axle (19) between the upper propeller hub (2) and the lower propeller hub (18). The coaxial double propeller helicopter middle propeller pitch control device is capable of reducing motion transmission distance, reducing conversion links, and increasing control accuracy and stability; and manufacturing difficulty is low.
Coaxial double propeller helicopter middle propeller pitch control device
2016-01-27
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
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