The low-floor tramcar comprises a flat top plate and further comprises a plurality of longitudinal beams and a plurality of cross beams, the longitudinal beams and the cross beams are welded to the back face of the flat top plate, the longitudinal beams are arranged in the transverse direction of the cross beams, the cross beams are arranged in the longitudinal direction of the longitudinal beams, the longitudinal beams located on the edges of the longitudinal beams are edge longitudinal beams, and the longitudinal beams located on the edges of the cross beams are edge longitudinal beams. The side longitudinal beams are welded with the side walls; the cross beams located at the ends of the multiple cross beams are end cross beams, and the end cross beams are welded to the end flat tops. The edge longitudinal beams and the side walls are welded to form firm welding seams, the end cross beams and the end flat tops are welded to form welding seams, and the welding seams have a stable sealing effect compared with an adhesive, so that water seepage at the connecting positions of the side walls and the roof and at the connecting positions of the roof and the end flat tops can be prevented, and meanwhile the follow-up maintenance workload is reduced. And secondly, the lap joint amount of the roof and the side walls and the lap joint amount of the roof and the end flat roofs can be adjusted, and therefore co-located vehicle body synthesis without transposition can be achieved.
本发明公开了一种低地板有轨电车及其车顶,包括平顶板,还包括焊接于平顶板背面的纵梁和横梁,纵梁为多个,多个纵梁沿着横梁的横向排布,横梁为多个,多个横梁沿着纵梁的纵向排布,多个纵梁中位于边上的纵梁为边纵梁,边纵梁与侧墙焊接;多个横梁中位于端部的横梁为端横梁,端横梁与端部平顶焊接。边纵梁与侧墙焊接形成了牢固的焊缝,端横梁与端部平顶焊接同样形成了焊缝,焊缝相较于粘接剂具有稳定的密封效果,从而能够防止侧墙与车顶的连接处以及车顶与端部平顶的连接处发生渗水,同时降低了后续的检修作业量。其次,本申请中车顶与侧墙的搭接量以及车顶与端部平顶的搭接量均可调,因此可实现无需转位的同位车体合成。
Low-floor tramcar and roof thereof
一种低地板有轨电车及其车顶
2024-11-01
Patent
Electronic Resource
Chinese
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
Low-floor tramcar roof and side wall connection structure
European Patent Office | 2015
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