The invention provides a high-performance sound absorption apron board applied to a railway vehicle. The high-performance sound absorption apron board comprises an apron board body, a noise absorbing part fixed on the side face, facing a vehicle bogie, in the apron board body and used for absorbing wheel track noise and noise of a traction system (a traction motor, a gearbox and the like), and a noise isolation piece fixed to the lower end of the apron board body; the noise isolation piece extends in the length direction of the apron board body and is used for reducing the distance between the apron board body and a track so as to isolate the transmission path of wheel track noise; a sound absorption material is installed in the apron board body from the structure of a vehicle; a rubber plate is arranged on the lower portion of the apron board body to reduce the influence of wheel track noise and noise of a traction system (a traction motor, a gearbox and the like) on the environment outside the vehicle when the railway vehicle runs.
本发明提供一种应用于轨道车辆的高性能吸声裙板,包括:裙板本体;噪声吸收件,固定于裙板本体中朝向车辆转向架的侧面上,用于对轮轨噪声进行吸收和牵引系统(牵引电机和齿轮箱等)的噪声进行吸收;噪声隔绝件,固定于裙板本体的下端,且噪声隔绝件沿裙板本体的长度方向延伸,用于减小裙板本体与轨道之间的距离,以隔绝轮轨噪声的传播路径,从车辆自身结构入手通过对裙板本体的内部安装吸声材料,裙板本体的下部设置橡胶板来实现降低轨道车辆运行时轮轨噪声和牵引系统(牵引电机和齿轮箱等)噪声对车外环境的影响。
High-performance sound absorption apron board applied to railway vehicle
应用于轨道车辆的高性能吸声裙板
2021-05-18
Patent
Electronic Resource
Chinese
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF 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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