The invention belongs to the technical field of aviation undercarriages, and particularly relates to a large undercarriage supporting rod lock mechanism which comprises a main supporting column, a lower supporting rod, an upper supporting rod, a lower locking supporting rod, an upper locking supporting rod and a spring actuating cylinder. One end of the main strut is hinged on the rack, and the other end is connected with the airplane wheel; the other end of the lower supporting rod is hinged with the upper supporting rod; the lower locking supporting rod is hinged between the lower supporting rod and the upper locking supporting rod, and the other end of the upper locking supporting rod is hinged to the main supporting column. When the lower lock supporting rod and the upper lock supporting rod are unfolded to form deflection, the stop end faces are attached to stop, and the lower lock supporting rod and the upper lock supporting rod are in a locked state. One end of the spring actuating cylinder is hinged between the lower locking supporting rod and the upper locking supporting rod, and the spring actuating cylinder provides pulling force through the spring in a free state, so that the lower locking supporting rod and the upper locking supporting rod are kept locked; and the spring actuating cylinder provides thrust under the action of the actuating cylinder, so that the lower locking support rod and the upper locking support rod are unlocked.

    本申请属于航空起落架技术领域,特别涉及一种大型起落架撑杆锁机构,本申请提供了一种大型起落架撑杆锁机构,包括:主支柱、下撑杆、上撑杆、下锁撑杆、上锁撑杆以及弹簧作动筒;主支柱一端铰接在机架上,另一端与机轮连接;下撑杆铰接主支柱,另一端铰接上撑杆;下锁撑杆铰接下撑杆与上锁撑杆之间,上锁撑杆的另一端与主支柱铰接;下锁撑杆与上锁撑杆展开形成挠度时,止动端面贴合止动,下锁撑杆与上锁撑杆形成锁定状态;弹簧作动筒一端铰接在下锁撑杆与上锁撑杆之间,弹簧作动筒在自由状态下通过弹簧提供拉力,使下锁撑杆与上锁撑杆保持锁定;弹簧作动筒在作动筒作动下提供推力,使下锁撑杆与上锁撑杆解除锁定状态。


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    Title :

    Supporting rod lock mechanism of large undercarriage


    Additional title:

    一种大型起落架撑杆锁机构


    Contributors:
    ZHANG JIANJIAN (author) / JIAO BINCHANG (author) / YANG YAN (author) / ZHANG LIJUN (author) / ZHANG GUONING (author)

    Publication date :

    2024-03-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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