The invention discloses a dual-redundancy propeller pitch sub-control operation system of a coaxial type unmanned helicopter and relates to the technical field of aviation. The operation system comprises an upper rotor wing operation system and a lower rotor wing operation system, wherein the upper rotor wing operation system comprises an upper rotor wing pitch varying pull rod, an upper rotor wing automatic inclining device, an upper rotor wing head support, an upper rotor wing operation long pull rod and an upper rotor wing servo steering engine; the lower rotor wing operation system comprises a lower rotor wing pitch varying pull rod, a lower rotor wing automatic inclining device, and an inner ring torque arm and an outer ring torque arm in the lower rotor wing automatic inclining device, and further comprises a lower rotor wing servo steering engine. By virtue of the coaxial type dual-redundancy propeller pitch sub-control operation system, the defects of a conventional coaxial type unmanned helicopter that the mechanical structure is more complicated, the rotation resistance is great, the crashing risk of the helicopter is great after an operation executing mechanism loses the efficiency, and the complexity and the weight of the steering engine are also increased by adopting a dual-redundancy steering engine form and the like are overcome.


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    Title :

    Dual-redundancy propeller pitch sub-control operation system of coaxial type unmanned helicopter


    Contributors:
    CHEN MING (author) / WANG QIANG (author) / WU-MEI LIWEN (author) / MA YIMIN (author)

    Publication date :

    2015-04-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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