The invention relates to the field of railway vehicles, and provides a rear-end traction beam structure, an underframe and a railway vehicle. The rear-end traction beam structure comprises a pair of rear end traction beam bodies. Each rear end traction beam body comprises an L-shaped web, a reinforcing rib plate arranged on the horizontal section of the L-shaped web and opposite to the vertical section of the L-shaped web in a spaced mode, and a cover plate arranged on the vertical section of the L-shaped web and the reinforcing rib plate in a covering mode. The contour shape of the side, awayfrom the horizontal section, of the L-shaped web comprises a first linear section, an arc section and a second linear section which are connected in sequence. The cover plate comprises a first coverplate covering the first linear section, an arc-shaped cover plate covering the arc line section and a second cover plate covering the second linear section, and the thickness of the arc-shaped coverplate is larger than the thickness of the first cover plate and the thickness of the second cover plate. The cover plate is independently arranged, so that the thickness of the cover plate can be locally adjusted according to stress, the overall thickness of the rear-end traction beam is prevented from being increased, the weight of the rear-end traction beam is reduced, and the strength of the rear-end traction beam is also improved.
本发明涉及轨道车辆领域,提供后端牵引梁结构、底架及轨道车辆。后端牵引梁结构包括一对后端牵引梁本体,每个后端牵引梁本体包括L型腹板、设置在L型腹板的水平段并与L型腹板的竖直段间隔相对的加强筋板,及盖设在L型腹板的竖直段与加强筋板上的盖板;L型腹板远离水平段的一侧的轮廓形状包括依次相连的第一直线段、弧线段以及第二直线段;盖板包括盖设在第一直线段的第一盖板、盖设在弧线段的弧形盖板及盖设在第二直线段的第二盖板,弧形盖板的厚度大于第一盖板与第二盖板的厚度。本发明通过单独设置盖板,因此可以根据受力对盖板的厚度进行局部调整,避免加厚后端牵引梁的整体厚度,实现了后端牵引梁的减重,也提高了后端牵引梁的强度。
Rear-end traction beam structure, underframe and railway vehicle
后端牵引梁结构、底架及轨道车辆
04.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC: | B61G Kupplungen besonders ausgebildet für Eisenbahnfahrzeuge , COUPLINGS SPECIALLY ADAPTED FOR RAILWAY VEHICLES / 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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