The invention discloses a large unmanned helicopter tail rotor pitch changing mechanism which comprises a tail rotor hub and a tail rotor pitch changing device connected with the end of the tail rotor hub, one end of the tail rotor pitch changing device is movably connected with a tail speed reducer, the other end of the tail rotor pitch changing device is connected with the end of the tail rotor hub, and a tail speed reducer output shaft of the tail speed reducer penetrates through the tail rotor pitch changing device. The tail rotor pitch changer is connected with the tail rotor hub and movably connected with the steering engine connecting rod. According to the invention, the helicopter can respond to the operation instruction of the pilot more quickly and accurately, the pilot can control the flight attitude and direction of the helicopter more flexibly, the controllability and maneuverability of the helicopter in low-speed flight and complex environments are enhanced, and the propeller pitch of the tail rotor can be adjusted flexibly, so that the reliability of the helicopter is improved. Therefore, the helicopter can meet the requirements of various tasks, for example, when tasks such as transportation, reconnaissance and search and rescue are executed, the position and direction of the helicopter can be more accurately controlled, and the success rate of task execution is increased.

    本发明公开了一种大型无人直升机尾桨变距机构,包括:尾桨毂,以及与所述尾桨毂的端部连接的尾桨变距器,所述尾桨变距器的一端与尾减速器活动连接,另一端与所述尾桨毂的端部连接,尾减速器的尾减速器输出轴贯穿所述尾桨变距器,并与所述尾桨毂连接,所述尾桨变距器与舵机连杆活动连接。本发明可以使直升机能够更快速、准确地响应飞手的操作指令,飞手可以更加灵活地控制直升机的飞行姿态和方向,增强其在低速飞行和复杂环境下的操控性和机动性,由于通过本发明可以灵活地调整尾桨的桨距,因此它可以适应多种任务需求,例如在执行运输、侦察、搜救等任务时,可以更加精准地控制直升机的位置和方向,提高执行任务的成功率。


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    Title :

    Tail rotor pitch changing mechanism of large unmanned helicopter


    Additional title:

    一种大型无人直升机尾桨变距机构


    Contributors:
    DONG JIAJUN (author) / HONG JIA (author) / FENG LIN (author) / FU ZHIQIAO (author) / XU JIANWEI (author) / ZHU HUI (author)

    Publication date :

    2024-04-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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