Elastic fastener applied to railway steel rail and mounting method thereof: Fid-Bau Portal

Elastic fastener applied to railway steel rail and mounting method thereof

GENG CHUANZHI / FANG ZHENG

The invention provides an elastic fastener applied to a railway steel rail and a mounting method thereof.The elastic fastener comprises a steel rail fixing assembly and an elastic assembly, the steelrail fixing assembly is fixedly arranged on a rail bearing plate, the elastic assembly is arranged below the rail bearing plate, and the elastic assembly is arranged on a railway ballast bed; the elastic assembly comprises an air chamber cavity, the air chamber cavity is filled with compressed air, the air chamber cavity is connected with the rail bearing plate in a sealed mode, and dynamic loadson the railway steel rail are transmitted to the air chamber cavity and a sealing elastic layer of the bearing plate through the rail bearing plate. Compressed air serves as a damping medium in a fluid form to be loaded in the well-sealed air chamber cavity, and the air chamber cavity is formed between the steel rail fixing assembly and the railway ballast bed, so that the wheel rail vibration noise is greatly reduced and improved; a supporting boss is arranged in the air chamber cavity, is perpendicular to the ballast bed and is used for limiting the railway steel rail to move in the direction of the railway ballast bed.

本发明提供了一种应用于铁路钢轨的弹性扣件及其安装方法，包括钢轨固定组件和弹性组件，所述钢轨固定组件固设于承轨板上，所述承轨板下方设置所述弹性组件，所述弹性组件设于铁路道床上；所述弹性组件包括气室腔，所述气室腔内充满压缩气体，所述气室腔与所述承轨板密封连接，所述铁路钢轨上的动荷载通过所述承轨板传递至所述气室腔和承载板的密封弹性层，压缩空气以流体形式作为减振介质填充于密封良好的所述气室腔，所述气室腔设置于所述钢轨固定组件与所述铁路道床之间，极大减缓和改善了轮轨振动噪声；所述气室腔内设有支撑凸台，所述支撑凸台与所述道床垂直，用于限制所述铁路钢轨向沿所述铁路道床方向的移动。

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