The invention provides a floor vibration reduction system for a rail transit vehicle; the system comprises a floating type floor mounting structure, a vibration reduction supporting structure and a noise reduction composite material, the floating type floor mounting structure comprises floor supporting beams and elastic damping pads, and the floor supporting beams are fixedly connected to the two sides of the upper surface of a vehicle body chassis. Elastic shock absorption pads are arranged between the floor supporting beams and the floor, the vibration reduction supporting structure comprises a plurality of supporting blocks evenly arranged between the vehicle body chassis and the floor, each supporting block comprises a metal layer fixed to the upper surface of the vehicle body chassis, a damping layer is fixedly connected to the metal layer, and a shock absorption layer is arranged between the damping layer and the floor. And the supporting block gap between the vehicle body chassis and the floor is filled with the noise reduction composite material. The supporting blocks which are evenly arranged through the vibration reduction supporting structure are used for dispersing stress, and the floor settlement and noise reduction requirements are met; meanwhile, the space between the vehicle chassis and the built-in floor cavity is filled with the high-performance noise reduction composite material, so that the noise reduction performance of the whole system is improved.
本发明提供一种轨道交通车辆地板减振系统,包括浮动式地板安装结构、减振支撑结构和降噪复合材料,所述浮动式底板安装结构包括地板支撑梁和弹性减震垫,其中地板支撑梁固定连接在车体底架上表面两侧,地板支撑梁和地板之间设置弹性减震垫,所述减震支撑结构包括多个均匀设置在车体底架和地板之间的支撑块,所述支撑块包括固定在车体底架上表面的金属层,金属层上固定连接阻尼层,阻尼层和地板间设置减震层,所述降噪复合材料,填充在车体底架和地板之间的支撑块空隙中。通过减振支撑结构均匀排列的支撑块分散受力,满足地板沉降和降噪要求,同时,在车辆底架与内装地板形腔之间填充高性能降噪复合材料提高整个系统的降噪性能。
Floor vibration reduction system for rail transit vehicle
一种轨道交通车辆地板减振系统
2021-11-09
Patent
Electronic Resource
Chinese
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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