Curved rail plate

Abstract

The present invention discloses one kind of curved track board, and belongs to the field of curved track board technology. The curved track board includes one inward concaved track board and four rows built-in insulating casings deposited in the track board for installing rail fasteners. The built-in insulating casings are arc arranged on the track board, the built-in insulating casings in each row have the central lines distributed in one circle concentric with the circle of the rail central line, and the 4 built-in insulating casings in each column have the central lines constituting one radial line. The curved track formed with the curved track boards is well matched with small radium curve, and this results in high train running safety and comfortability.

Description

technical field [0001] The invention relates to a track slab, in particular to a track slab used for laying ballastless tracks on curved lines. Background technique [0002] At present, the existing shoulderless ballastless track slabs are all prefabricated according to linear slabs, that is, the fastener nodes are arranged in a straight line in the line direction and vertical line direction, as shown in Figure 1: [0003] When laying shoulderless and ballastless track slabs in circular curves and gentle curves, a broken line of about 5m per section is formed according to the position of the track, and then the rail direction is adjusted by using the fastener system to make it conform to the curve. But this method has the following problems: [0004] Theoretically, the connection line of the fastener system in the vertical direction should point to the center of the curve, which requires the fastener system to be arranged along a fan shape, that is, the distance between the...

AI Technical Summary

Problems solved by technology

[0004] Theoretically, the connection line of the fastener system in the vertical direction should point to the center of the curve, which requires the fastener system to be arranged along a fan shape, that is, the distance between the fastener nodes of the outer strands of the curve should be greater than that of the inner strands of the curve, while the existing The spacing between the fastener nodes on the outer strand of the curve on the straight track is exactly the same as the spacing between the fastener nodes on the inner strand of the curve, which is detrimental to driving safety

Since the shoulderless fasteners use the gauge blocks to guide the rails, the gauge blocks should be arranged along the tangential direction of the track to ensure close contact with the rails. There will be a small angle with the direction of the curved rail, which will make the force between the rail and the fastener system more complicated, which is not good for driving safety

The existing fastener system can only adjust the rail horizontally, which cannot solve the above problems

When the radius of the curve is small (such as 500m), the adjustment of the rail direction will exceed the adjustable amount of the fastener system itself, and the curve type cannot be guaranteed

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