Saw-tooth mutual-lock type steel sleeper for automatic compensation of settlement

Abstract

The invention provides a saw-tooth mutual-lock type steel sleeper for automatic compensation of settlement. The saw-tooth mutual-lock type steel sleeper comprises a steel sleeper body, and the steel sleeper body is laid on railway ballast. The saw-tooth mutual-lock type steel sleeper is characterized in that a lifting block and steel plates are arranged in an inner cavity of the steel sleeper body, the two sides of the lifting block are connected with the inner side faces of the two steel plates through saw teeth correspondingly, intervals are reserved between the saw tooth, and the upper end of the lifting block is fixedly connected with a steel rail; steel beads are arranged between the upper end of the steel plate and the upper wall of the inner cavity of the steel sleeper body as well as the lower end of the steel plate and the lower wall of the inner cavity of the steel sleeper body, and spring blocks are evenly arranged between the outer side of the steel plate and the inner wall of the inner cavity of the steel sleeper body; one end of each screw is fixed to the outer side face of the steel plate, and the other end of the each screw penetrates through the inner wall of the steel sleeper body directly to the outer side of the steel sleeper body and is fixed by a bolt; and the upper side of the lifting block and the upper surface of the steel sleeper body are annularly connected through a rubber dirt-proof sleeve. The saw-tooth mutual-lock type steel sleeper for automatic compensation of settlement has the characteristics of being simple in structure and reliable in work, and automatic adjustment can be achieved, so that the problem of unevenness caused due to uneven settlement of routes is solved.

Description

technical field [0001] The invention relates to a rail temperature raising device used for rail replacement overhaul of existing lines. Background technique [0002] The railway line structure is composed of lines (subgrade lines), bridges, tunnels, and stations. The track structure of the line can be laid with ballasted tracks and ballastless tracks according to the differences in railway grades and technical standards. Significant differences in stiffness of different line structures and uneven settlement of railway subgrades, etc., cause inconsistencies in the displacement response of the rail surface when the train passes. causing the rail surface to bend. When the train passes by at high speed, the dynamic interaction between the vehicle and the line is intensified, causing serious irregularities on the track surface, accelerating the deterioration of the line state, increasing the maintenance cost of the line, and even threatening the driving safety in severe cases. ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a sawtooth interlocking type settlement automatic compensation steel sleeper with simple structure, automatic adjustment, reliable operation, which can solve the problem of unevenness caused by uneven settlement of the line

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