The invention relates to an undercarriage folding and unfolding mechanism and an aircraft comprising the undercarriage folding and unfolding mechanism, the undercarriage folding and unfolding mechanism comprises an actuating mechanism, a buffer supporting column, a front side supporting mechanism and a rear side supporting mechanism, and the front side supporting mechanism and the rear side supporting mechanism are symmetrical after being assembled. The rear support mechanism is located rearward of the front support mechanism in the flow direction of the external air flow, and the overall length of the rear stay before assembly is shorter than the distance between two attachment positions. A prestress is applied to the rear support rod by shortening the length of the rear support rod, thereby counteracting the pressure generated on the rear support rod due to the external airflow load, and ensuring that the front support mechanism and the rear support mechanism synchronously reach the lowering position and are locked.

    一种起落架收放机构和包括该起落架收放机构的飞机,上述起落架收放机构包括:作动机构、缓冲支柱、前侧支撑机构和后侧支撑机构,上述前侧支撑机构和上述后侧支撑机构在组装之后是彼此对称的机构,上述后侧支撑机构在外部气流的流动方向上位于比上述前侧支撑机构更靠后方的位置,并且上述后侧撑杆的组装之前的整体长度比两个安装位置之间的距离短。通过缩短后侧撑杆的长度来在后侧撑杆上施加一个预应力,由此抵消由于外部气流载荷而在后侧撑杆上产生的压力,从而保证上述前侧支撑机构和上述后侧支撑机构同步地到达放下位置并锁定。


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    Title :

    Undercarriage folding and unfolding mechanism and aircraft


    Additional title:

    起落架收放机构和飞机


    Contributors:
    OU HIROSHI (author) / GAO CHAO (author) / ZHANG ZIHAO (author) / GE DONGDONG (author)

    Publication date :

    2024-08-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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