The invention belongs to the field of aircraft structure design, and particularly relates to an aircraft landing gear four-connecting-rod unlocking mechanism which comprises an upper supporting rod, a lower supporting rod, a landing gear supporting column assembly, a folding and unfolding actuating cylinder, a supporting rod locking mechanism and a driving mechanism. The lower end of the undercarriage strut assembly is hinged to the lower end of a lower supporting rod, the upper end of the lower supporting rod is hinged to an upper supporting rod, and the upper supporting rod is hinged to the rack; the driving mechanism comprises an actuating cylinder, an unlocking rocker arm and a four-bar mechanism; one end of the actuating cylinder is hinged to the upper supporting rod, the other end of the actuating cylinder is hinged to the unlocking rocker arm, the unlocking rocker arm is fixedly connected to a rotating shaft hinged to the upper supporting rod, and the four-bar mechanism is fixedly connected with the rotating shaft to transmit torque to the supporting rod locking mechanism. The supporting rod lock mechanism is connected between the lower supporting rod and the undercarriage supporting rod assembly, the driving mechanism drives the supporting rod lock mechanism to be unlocked and locked, the unlocking and locking functions of the lock mechanism can be achieved, the lock mechanism can be arranged at the upper end of the supporting rod, and a larger space can be provided for arrangement of the lock mechanism.

    本申请属于飞机结构设计领域,特别涉及一种飞机起落架四连杆开锁机构,上撑杆、下撑杆、起落架支柱组件、收放作动筒、撑杆锁机构以及驱动机构;起落架支柱组件的下端铰接在下撑杆的下端,下撑杆的上端与铰接上撑杆,上撑杆铰接在机架上;驱动机构包括作动筒,开锁摇臂,四连杆机构;作动筒一端铰接在上撑杆上,另一端铰接开锁摇臂,开锁摇臂固连在铰接在上撑杆的转轴上,四连杆机构通过与转轴固连将扭矩传递给撑杆锁机构;撑杆锁机构连接在下撑杆与起落架支柱组件之间,通过驱动机构驱动撑杆锁机构开锁与锁止,本申请能够实现锁机构的开锁和上锁功能,在布置上能够布置在撑杆上端,能够为锁机构的布置提供更大空间。


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    Title :

    Four-bar linkage unlocking mechanism of aircraft landing gear


    Additional title:

    一种飞机起落架四连杆开锁机构


    Contributors:
    PAN XIAOQUAN (author) / ZHANG LIJUN (author) / JIA JIN (author) / DING YAN (author)

    Publication date :

    2024-03-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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