METHOD AND DEVICE FOR LAYING RAIL FOR RAIL TRANSIT

Abstract

A method and a device for laying a rail for rail transit are provided. In the present method for laying a rail for rail transit, the rail is a steel rail, which is fabricated and laid continuously on site; the on-site fabrication of the steel rail adopts at least on-site rolling; the rolling is continuous rolling; there is also a casting process before the steel rail is rolled; and the casting process is a continuous casting process. Through the continuous casting and rolling processes, the rolled steel rail is in a continuous state. The continuous steel rail is laid directly after being fabricated by the continuous casting and rolling processes. By improving the existing equipment, the present disclosure transfers the fabrication process of the steel rail to the rail laying site and directly lays the steel rail into a continuous seamless rail.

Claims

1-7. (canceled)

8. A device for laying a rail for rail transit, wherein the rail is a steel rail formed by an on-site fabrication, the rail is continuously laid on site, and the on-site fabrication of the steel rail comprises at least continuous casting and rolling processes; the device comprises a steel rail laying apparatus and a continuous casting and rolling device, wherein the continuous casting and rolling device outputs the steel rail being uniform and continuous, and the steel rail is laid by the steel rail laying apparatus, at least the continuous casting and rolling device is provided on a first carrying device, the first carrying device moves along a rail laying route, the device further comprises a second carrying device, the second carrying device is provided between the first carrying device and the continuous casting and rolling device, the second carrying device is movable back and forth at least along a rail laying direction relative to the first carrying device, and the second carrying device is also movable laterally along the rail laying route.

9. The device for laying the rail for rail transit according to claim 8, wherein a first tensile force sensors is provided between the steel rail and the continuous casting and rolling device, and a second tensile force sensor is provided between the first carrying device and the second carrying device; a position sensor is provided between the first carrying device and the second carrying device; the second carrying device is provided with a secondary driving device for driving the second carrying device to move on the first carrying device; the first carrying device is provided with a primary driving device for driving the first carrying device to move on a ground; the first tensile force sensor, the second tensile force sensor, the position sensor, the secondary driving device, and the primary driving device are all connected to a controller; and the controller is connected to a host computer.

10. The device for laying the rail for rail transit according to claim 8, wherein the continuous casting and rolling device comprises a turret of at least two ladles, a tundish, molds, a guide roller, and a roller, wherein the ladles are provided with a heating device, and the ladles are carried by the turret; a molten steel is poured into the tundish, and is distributed to each of the molds from a nozzle of the tundish; the molds cool the molten steel into a billet; the billet is conveyed to the roller through the guide roller in an arc shape; and the roller moves back and forth to roll the billet into a designed rail.

11. The device for laying the rail for rail transit according to claim 8, wherein an on-site steelmaking process is further provided before the continuous casting and rolling processes.

12. The device for laying the rail for rail transit according to claim 8, wherein a rail foundation construction is completed before the rail is laid.

13. The device for laying the rail for rail transit according to claim 8, wherein a power facility construction along the rail is completed before the rail is laid.

14. The device for laying the rail for rail transit according to claim 8, wherein a continuous rolling method of the continuous casting and rolling device comprises: rolling, by a roller moving relative to a ground, a billet fixed or moved relative to the ground.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG. 1 is a schematic view of a device for laying a rail for rail transit according to the present disclosure;

[0022] FIG. 2 is a flowchart of the latest seamless rail laying;

[0023] FIG. 3 is a flowchart of a method for laying a rail for rail transit according to the present disclosure.

[0024] Reference Numerals: 1. continuous casting device; 2. continuous rolling device; 3. second carrying device; 4. first carrying device; 5. rail laying apparatus; and 6 steel rail.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present disclosure will be further described below with reference to specific embodiments. FIG. 1 is a schematic view of a device for laying a rail for rail transit according to the present disclosure. The reference numerals in the figure are respectively as follows: 1. continuous casting device; 2. continuous rolling device; 3. second carrying device; 4. first carrying device; 5. rail laying apparatus; and 6. rail. The continuous casting device 1 includes two ladle turrets, a tundish, molds and a guide roller, etc. The ladles are provided with a heating device, and the ladles are carried by the turret. Molten steel is poured into the tundish, and is distributed to each of the molds from a nozzle of the tundish. The molds cool the molten steel into billets. The billets are conveyed to a roller of the continuous rolling device through the guide roller in an arc shape. The roller moves back and forth to roll the billet into a designed rail 6. A rail 1 output by the continuous rolling device 2 directly enters the rail laying apparatus 5. The rail laying apparatus 5 adjusts a position of the rail 1, adds a rail pad and an elastic frame, and lays the rail 1. The continuous casting device 1 and the continuous rolling device 2 are provided on the first carrying device 4. The first carrying device 4 moves along a rail laying route, such that the rail 1 is output smoothly. The second carrying device 3 is provided on the first carrying device 4 and located below the continuous casting device 1 and the continuous rolling device 2. The second carrying device 3 is movable back and forth at least relative to the first carrying device 4 in a rail laying direction. This design allows an adjustment in a difference between a speed of the continuous casting device 1 and the continuous rolling device 2 to output the rail 1 and a speed of the first carrying device 4. When a speed error occurs, it is compensated by a movement of the second carrying device 3. The second carrying device 3 is also movable laterally along the rail laying route for adjusting a lateral deviation. Tensile force sensors for detecting a tensile force are provided between the rail 6 and the continuous rolling device 2 and between the first carrying device 4 and the second carrying device 3. A position sensor is provided between the first carrying device 4 and the second carrying device 3 to detect a positional movement between the first carrying device 4 and the second carrying device 3. The second carrying device 3 is provided with a secondary driving device for driving the second carrying device 3 to move on the first carrying device 4. The first carrying device 4 is provided with a primary driving device for driving the first carrying device 4 to move on a ground. The tensile force sensors, the position sensor, the secondary driving device and the primary driving device are all connected to a controller. The controller is connected to a host computer to control the operation of each part. The host computer is also used to detect and control the data and operation of other parts. The rail laying apparatus 5 may also be provided on the first carrying device 4 or the second carrying device 3.

[0026] FIG. 2 is a flowchart of the latest seamless rail laying. FIG. 3 is a flowchart of a method for laying a rail for rail transit according to the present disclosure. It can be seen from the comparison of the two figures that the method of the present disclosure is simpler, saves many processes and special equipment, and achieves higher rail consistency, thereby providing a good foundation for the speed-up and stable operation of rail transit.

[0027] The above-mentioned embodiments of the present disclosure are only used to illustrate the present disclosure, and the common-sense technologies and principles in steelmaking and continuous casting and rolling will not be described again. The present disclosure can be used in various changes and combinations according to the prior art, but these changes and combinations are all within the protection scope of the present application.