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发明公开
CN103010244A 一种铁路车辆及其底架 无效 - 驳回

一种铁路车辆及其底架
摘要：
本发明公开了一种用于铁路车辆的底架，其中梁的腹板的中间部具有较小的第一厚度，腹板的端部具有较大的第二厚度。由于中梁的两端部与枕梁连接，需要承受较大的载荷，因此腹板的端部设置较大的第二厚度能够保证中梁需要的强度，由于中梁的中间部与横梁连接，只需承受较小的载荷，因此腹板的中间部设置较小的第一厚度也能够保证中梁需要的强度。与现有技术中采用厚度均较大的腹板相比，这种结构的中梁减小了自身重量，进而减小了铁路车辆的重量。本发明还提供一种铁路车辆，包括侧壁、端壁和底架；所述底架采用如上所述的底架，所述底架与所述侧壁、所述端壁连接。
摘要（英）：

The invention discloses an underframe for a railway vehicle, wherein the middle part of a web plate of a center beam has a smaller first thickness, and the end part of the web plate has a larger second thickness. Because two end parts of the center beam are connected with sleeper beams and need to bear a larger load, the end part of the web plate has the larger second thickness and can ensure the strength needed for the center beam; and because the middle part of the center beam is connected with crossbeams and only needs to bear a smaller load, the middle part of the web plate has the smaller first thickness and can ensure the strength needed for the center beam. Compared with the web plate with larger thickness in the prior art, the center beam with the structure lowers the self weight and further lowers the weight of the railway vehicle. The invention further provides the railway vehicle, which comprises side walls, end walls and the underframe disclosed by the invention, the underframe is connected with the side walls and the end walls.

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