The embodiment of the invention relates to the technical field of rail vehicles, and especially relates to a double-layer rail vehicle and an underframe thereof. The underframe comprises a lower-layerunderframe, end underframes, side underframes, reinforcing middle beams and sealing plates. The first reinforcing middle beam is used for fixedly connecting the first end underframe to one end of anunderframe middle beam; the second reinforcing middle beam is used for fixedly connecting the second end underframe to the other end of the underframe middle beam; the first sealing plate is fixedly connected between the first end underframe and the lower-layer underframe and is used for sealing a gap between the first end underframe and the lower-layer underframe; and the second sealing plate isfixedly connected between the second end underframe and the lower-layer underframe and is used for sealing a gap between the second end underframe and the lower-layer underframe. By the adoption of the scheme, the end underframes are fixedly connected to the underframe middle beam of the lower-layer bottom frame through the reinforcing middle beams, the connecting strength between the end underframes and the lower-layer bottom frame can be guaranteed, a reinforcing structure does not need to be additionally arranged, so the underframe has the advantages of being simple in structure, small in welding amount and small in weight.

    本申请实施例轨道车辆技术领域,具体地,涉及一种双层轨道车辆及其底架。该底架包括下层底架、端底架、侧底架、补强中梁以及封板;第一补强中梁用于将第一端底架固定连接于底架中梁的一端;第二补强中梁用于将第二端底架固定连接于底架中梁的另一端;第一封板固定连接于第一端底架与下层底架之间,用于密封第一端底架与下层底架之间的间隙;第二封板固定连接于第二端底架与下层底架之间,用于密封第二端底架与下层底架之间的间隙。采用本申请中的方案,该底架通过补强中梁将端底架固定连接于下层底架的底架中梁,能够保证端底架与下层底架之间的连接强度,无需增加补强结构,使得该底架具有结构简单、焊接量小和重量小的特点。


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    Title :

    Double-layer rail vehicle and underframe thereof


    Additional title:

    一种双层轨道车辆及其底架


    Contributors:
    LIU JUANJUAN (author) / REN GANG (author) / MA JIJUN (author) / HOU JIANYING (author) / LI XINWEI (author) / WANG LIJUAN (author) / GUO BIN (author) / JIA PENG (author)

    Publication date :

    2020-07-03


    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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