The invention provides a triangular supporting structure for a large truss type landing gear, and belongs to the technical field of aircraft landing gear design, the triangular supporting structure comprises an upper support and a lower support, the upper support and the lower support are both of a rod structure, the upper support comprises a first connecting lug piece and a second connecting lug piece, the first connecting lug piece and the second connecting lug piece are distributed at the two ends and used for installing undercarriage supporting columns, the second connecting lug piece is used for being connected with an airframe structure, and a third connecting lug piece used for being connected with the lower support is arranged between the first connecting lug piece and the second connecting lug piece. The third connecting lug is not located on a connecting line of the first connecting lug and the second connecting lug. The two ends of the lower supporting rod are provided with a double-lug structure used for being connected with the third connecting lug piece of the upper supporting rod and a fourth connecting lug piece used for being connected with a machine body structure respectively, and the third connecting lug piece is inserted into the double-lug structure and connected with the double-lug structure through a bolt. A supporting section formed by the upper supporting rod and the lower supporting rod is perpendicular to the undercarriage supporting column.

    本申请提供了一种用于大型桁架式起落架的三角支撑结构,属于飞机起落架设计技术领域,该三角支撑结构包括:上支撑和下支撑,所述上支撑和下支撑均为杆类结构,其中,所述上支撑包括分布在两端的用于安装起落架支柱的第一连接耳片和用于与机体结构连接的第二连接耳片,在所述第一连接耳片与第二连接耳片之间具有用于与下支撑连接的第三连接耳片,其中,第三连接耳片非位于第一连接耳片与第二连接耳片的连接线上;所述下撑杆两端分别设有用于与上撑杆的第三连接耳片连接的双耳结构和用于与机体结构连接的第四连接耳片,所述第三连接耳片插入至双耳结构中通过螺栓连接;其中,所述上撑杆与下支撑形成的支撑剖面垂直于起落架支柱。


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    Title :

    Triangular supporting structure for large truss type undercarriage


    Additional title:

    一种用于大型桁架式起落架的三角支撑结构


    Contributors:
    YANG YAN (author) / YU HAITAO (author) / ZHANG LIJUN (author)

    Publication date :

    2025-02-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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