The invention provides a floor vibration reduction structure and a railway vehicle. A plurality of through holes are formed in a vibration reduction body at intervals in the extension direction of a floor, and each through hole is provided with a first inner wall and a second inner wall which are oppositely arranged in the telescopic direction of the vibration reduction body; the first inner wall and the second inner wall have a separated state and an abutting state, and in the separated state, the damping body provides first elastic force for the floor; when the stress of the vibration reduction body is increased and the first inner wall and the second inner wall are in an abutting state, the vibration reduction body provides second elastic force for the floor; the damping body is provided with the holes, low-rigidity design of a large-rigidity elastic body is achieved, noise in a vehicle can be reduced, variable-rigidity design is achieved, in other words, small-rigidity damping supporting is achieved when the holes are compressed, and large-rigidity supporting is achieved when the first inner wall and the second inner wall abut against each other and the holes are closed when the damping body bears large external loads or passenger jumping impact loads. And floor damage caused by too large sinking amount of the floor is avoided, the vibration reduction efficiency is improved, and meanwhile the transverse supporting stability is met.
本发明提供一种地板减振结构及轨道车辆,通过在减振本体开设沿地板延伸方向间隔设置的多个通孔,通孔具有沿减振本体伸缩方向相对设置的第一内壁和第二内壁;第一内壁和第二内壁具有分离状态和抵接状态,在分离状态下,减振本体为地板提供第一弹力;当减振本体受压增大,第一内壁和第二内壁在抵接状态下,减振本体为地板提供第二弹力;通过对减振本体进行开孔设计,实现大刚度弹性体低刚度设计,有利于降低车内噪声,且实现变刚度设计,即孔压缩时为小刚度减振支撑,当承受外界较大载荷或乘客跳动冲击载荷时,第一内壁和第二内壁在抵接,孔闭合,实现大刚度支撑,避免地板下沉量过大导致地板破坏,提高减振效率的同时满足横向支撑稳定性。
Floor vibration reduction structure and railway vehicle
地板减振结构及轨道车辆
2022-11-04
Patent
Electronic Resource
Chinese
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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