The invention discloses a double-layer square tube combined type energy absorption structure for rail vehicle collision energy absorption, which comprises four parts, namely an outer tube, an inner tube, partition plates and an end plate, the partition plates are uniformly distributed between the inner tube and the outer tube along the length direction of the energy absorption structure, and the end plate is at least arranged at the top of the length direction of the energy absorption structure, namely the impacted end of the energy absorption structure. The energy absorption structure further comprises an induction groove, and the induction groove is formed in the middle of the position of the first partition plate from top to bottom from the top of the energy absorption structure and the position of the top of the energy absorption structure. Double-layer square tubes are adopted for combined energy absorption, and the inner tube and the outer tube can generate stable buckling deformation under axial dynamic impact through the guiding effect of the induction grooves and the partition plates. The two layers of square pipes absorb energy at the same time, the energy absorption capacity of the energy absorption structure can be improved by changing the shape, thickness and offset angle of the inner pipe and the partition plate, the corresponding double-layer pipe combined energy absorption structure can be arranged according to the speed magnitude of different trains, and the application range is wide.

    本发明公开了一种用于轨道车辆碰撞吸能的双层方管组合式吸能结构,包括外管、内管、隔板和端板四个部分,隔板沿着吸能结构的长度方向均匀地分布在内外管之间,且至少在吸能结构的长度方向顶部即吸能结构的受冲击端设置有端板,吸能结构还包括诱导槽,且诱导槽开在从吸能结构顶部从上往下的第一个隔板位置与吸能结构顶部位置的正中间。本发明采用双层方管组合式吸能,通过诱导槽和隔板的引导作用,使内管和外管在轴向动态冲击下能够产生稳定的屈曲变形。本发明实现了两层方管同时吸能,可通过改变内管和隔板的形状、厚度和偏置角度,来提高吸能结构的吸能能力,可根据不同列车的速度量级设置相应的双层管组合式吸能结构,适用范围广泛。


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    Title :

    Double-layer square tube combined type energy absorption structure for rail vehicle collision energy absorption


    Additional title:

    一种用于轨道车辆碰撞吸能的双层方管组合式吸能结构


    Contributors:
    JIN XIHONG (author) / LU JUN (author)

    Publication date :

    2022-03-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES



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