The invention provides an anti-crash strut type undercarriage buffer, which comprises a stretching energy absorption element, a supporting part and a buffering part, the stretching energy absorption element comprises a connecting part, an upper supporting section, a stretching energy absorption section, a lower supporting section and a stop table, and the connecting part is fixedly connected with a helicopter body; the upper end face of the middle cylinder is in contact with the stretching energy absorption piece; one end of the shear pin is arranged on the stretching energy absorption piece, and the other end of the shear pin is fixed on a helicopter body; wherein after the landing load reaches a certain value, the shear pin is sheared off, the stretching energy absorption element is driven by the middle cylinder to move upwards, stretching deformation energy absorption is started, and the stretching load is stable; according to the invention, the movement of the airplane wheel is limited in the axial movement of the buffer, so that the heading and lateral movement of the airplane wheel can be effectively avoided, and the crash movement space required by the undercarriage is effectively limited.

    本申请提供的一种抗坠毁支柱式起落架缓冲器,所述缓冲器包括:拉伸吸能元件,包括连接处、上支撑段、拉伸吸能段、下支撑段和止动台,所述连接处与直升机机身固定连接;中间筒,所述中间筒的上端面与所述拉伸吸能件接触;剪断销,所述剪断销的一端设置在所述拉伸吸能件上,所述剪断销的另一端固定在直升机机身上;其中,着陆载荷达到一定值后所述剪断销剪断,所述拉伸吸能元件被所述中间筒带着向上运动,开始拉伸变形吸能,且拉伸载荷稳定;本申请将机轮运动限制在缓冲器轴向运动,可以有效避免机轮航向和侧向运动,有效限制了起落架需要的坠毁运动空间。


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    Title :

    Anti-crash strut type undercarriage buffer


    Additional title:

    一种抗坠毁支柱式起落架缓冲器


    Contributors:
    CHEN XIANG (author) / YANG YUN (author) / FENG SHENGQUAN (author) / HUANG JIANXIN (author)

    Publication date :

    2023-10-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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