Track thermal expansion and cold contraction compensation device and steel rail: Fid-Bau Portal

Track thermal expansion and cold contraction compensation device and steel rail

XIA ZEGUANG / SHI XIAOGANG / XU DEWU / ZOU ZHIHUA

The invention belongs to the technical field of rail transportation, and discloses a rail thermal expansion and cold contraction compensation device and a steel rail, and the rail thermal expansion and cold contraction compensation device comprises a mounting plate and a compensation rail. The mounting plate is laid between the quenching track and the trolley and is fixedly connected with a ground foundation; the compensation track is mounted on the mounting plate and comprises a positioning joint and a plurality of movable joints, the positioning joint is in butt joint with the trolley, the movable joints are sequentially connected at intervals and connected between the positioning joint and the coke quenching track, and the distance between the positioning joint and the adjacent movable joints and the distance between any two adjacent movable joints can be changed along with temperature change. The track thermal expansion and cold contraction compensation device can compensate expansion and contraction caused by thermal expansion and cold contraction of the coke quenching track, smooth passing of vehicles is guaranteed, and meanwhile manpower resources wasted due to frequent track replacement are saved.

本发明属于轨道运输技术领域，公开了一种轨道热胀冷缩补偿装置及钢轨，该轨道热胀冷缩补偿装置包括安装板和补偿轨道。安装板被配置为铺设于熄焦轨道与台车之间，并与地面基础固连；补偿轨道安装于安装板上，包括定位节和多个活动节，定位节与台车对接，多个活动节依次间隔相连，并连接于定位节和熄焦轨道之间，定位节与相邻的活动节之间以及任意相邻的两个活动节之间的距离可随温度变化而改变。该轨道热胀冷缩补偿装置能够对熄焦轨道因热胀冷缩而造成的伸缩进行补偿，保证车辆的顺利通行，同时节省因频繁更换轨道而浪费的人力资源。

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