CN116690118A - Continuous rail welding operation method - Google Patents

Abstract

The application discloses a continuous rail welding operation method, which comprises the following steps: s11) conveying the short steel rail on the rail distribution vehicle to a second flat car under the rail distribution operation state, and welding the short steel rail into a long steel rail by a welding module; and conveying the long steel rail to a third flat wagon, and conveying the long steel rail to the first flat wagon for storage after the polishing module polishes the welding line. S12) conveying the long steel rail on the first flat car to the second flat car in a rail unloading operation state, welding the long steel rail into a longer long rail by a welding module, unloading the long steel rail to the ground, and polishing the steel rail on the ground. The application can solve the technical problems that the existing rail welding operation method can not realize continuous long-time rail welding in the rail matching and unloading operation process at the same time, has low operation efficiency and can not adapt to the short skylight period of subway rail changing operation.

Description

Continuous rail welding operation method

Technical Field

The application relates to the technical field of railway engineering machinery, in particular to a rail welding operation method applied to continuous welding of rails.

Background

Railway rails usually need to be replaced when reaching a certain life span, and currently in the subway rail replacement process, the rail welding operation is to transport 25m short rails to the site through a flat car and then spot-weld long rails on the ground through a plurality of skylight points. The existing railway in China mainly adopts seamless steel rails, short steel rails are often required to be continuously welded into long steel rails in the construction of the railway, and the welding operation of the existing steel rails mainly adopts two modes of welding a rail base and welding a rail car. The existing welding track base is high in construction cost, long in construction period and incapable of moving. The existing rail welding machine has low operation efficiency and is only suitable for welding rails in a short time on a construction site. These factors limit the operating efficiency of continuous field welding construction after transporting short rails to the field in operating scenarios including rail changing, rail matching, rail unloading, etc. of rail continuous welding processes.

In the prior art, although the chinese utility model application CN110977221A, CN104499390a and the chinese utility model patent CN201835195U disclose several rail welding vehicles for rail welding, these rail welding vehicles only can complete a single rail welding operation, and are not convenient for linking with the processes of polishing, transporting, etc. after welding, and are also not beneficial to the implementation of the integrated construction vehicle scheme. Chinese application CN107338690a discloses a rail change vehicle comprising: the device comprises a replacement module, a loading and unloading module and a transportation module which are sequentially connected along the construction operation direction. And the transportation module loads and transports the new steel rail. The loading and unloading module is provided with a steel rail conveying device which conveys the new steel rail to the replacement module. The loading and unloading module is provided with a rail dividing device which adjusts the transmitted new steel rail to a proper interval. The replacement module moves the old rail away from the rail sinking groove of the sleeper and unloads the new rail conveyed by the rail conveying device into the rail sinking groove of the sleeper. The utility model can finish all the work of unloading, changing and collecting the rail in one skylight point, saves the time for unloading the new rail in the traditional rail changing construction mode, and effectively avoids the potential safety hazard in the rail changing construction operation.

Because the subway construction has the characteristic of short operation skylight, the rail changing operation vehicle disclosed in the China application No. CN107338690A can not realize continuous long-time rail welding in the process of rail matching and rail unloading operation, has low operation efficiency and is not suitable for the existing subway rail changing operation. Meanwhile, the rail-changing operation vehicle comprises a fastener dismounting vehicle, so that the length of the whole vehicle is greatly increased, and the whole vehicle is inconvenient to store in a subway storage line.

Disclosure of Invention

In view of the above, the application aims to provide a continuous rail welding operation method, which solves the technical problems that the existing rail welding operation method can not realize continuous long-time rail welding in the rail matching and unloading operation process at the same time, has low operation efficiency and can not adapt to the short skylight period of subway rail changing operation.

In order to achieve the above object, the present application specifically provides a technical implementation scheme of a continuous rail welding operation method, which includes the following steps:

s11) conveying the short steel rail on the rail distribution vehicle to a second flat car under the rail distribution operation state, and welding the short steel rail into a long steel rail by a welding module; the long steel rail is conveyed to a third flat wagon again, and the polishing module is used for carrying out weld polishing treatment and then conveying the long steel rail to the first flat wagon for storage;

S12) in a rail unloading operation state, conveying the long rail on the first flat car to a second flat car, welding the long rail into a longer long rail by the welding module, unloading the long rail to the ground, and polishing the rail on the ground.

Further, a plurality of jacking and conveying devices are arranged on the second flatcar and the third flatcar at intervals along the longitudinal direction, and the jacking and conveying devices perform jacking and longitudinal conveying operation on the steel rail.

Further, a pushing device is arranged on the third flat car, a fixed pulley is arranged on the first flat car, and the pushing device drives the steel rail to move through a traction device. When the steel rail is required to be conveyed to the first flatcar to be stored in the rail matching operation state, one end of the traction device is connected with the steel rail after passing through the fixed pulley, and the other end of the traction device is connected with the pushing device. When the steel rail is required to be unloaded to the ground in the rail unloading operation state, one end of the traction device is connected with the steel rail, and the other end of the traction device is connected with the pushing device.

The application also specifically provides a technical implementation scheme of another continuous rail welding operation method, which comprises the following steps:

s21) conveying the short steel rail on the rail distribution vehicle to a second flat car under the rail distribution operation state, and welding the short steel rail into a long steel rail by a welding module; the long steel rail is conveyed to a first flat wagon again, and the long steel rail is stored on the first flat wagon after being subjected to welding seam polishing treatment by a polishing module;

S22) in a rail unloading operation state, conveying the long rail on the first flat car to the second flat car, welding the long rail into a longer long rail by the welding module, unloading the long rail to the ground, and polishing the rail on the ground.

Further, in the rail distribution operation state, a plurality of jacking and conveying devices are arranged on the second flatcar at intervals in the longitudinal direction, and the jacking and conveying devices perform jacking and longitudinal conveying operation on the steel rail.

Further, a pushing device is arranged on the second flat car, a fixed pulley is arranged on the first flat car, and the pushing device drives the steel rail to move through a traction device. When the steel rail is required to be conveyed to the first flatcar to be stored in the rail matching operation state, one end of the traction device is connected with the steel rail after passing through the fixed pulley, and the other end of the traction device is connected with the pushing device. When the steel rail is required to be unloaded to the ground in the rail unloading operation state, one end of the traction device is connected with the steel rail, and the other end of the traction device is connected with the pushing device.

The application also specifically provides a technical implementation scheme of a third continuous rail welding operation method, which comprises the following steps:

S31) conveying the short steel rail on the rail distribution vehicle to a second flat car under the rail distribution operation state, and welding the short steel rail into a long steel rail by a welding module; the long steel rail is reversely conveyed to the rail distribution vehicle, welded joints are polished by a polishing module and then stored on the first flat car, and the welding module is used for welding the next steel rail joint;

s32) in a rail unloading operation state, conveying the long rail on the first flat car to a second flat car, welding the long rail into a longer long rail by the welding module, unloading the long rail to the ground, and polishing the rail on the ground.

Further, a plurality of jacking conveying devices are arranged on the second flat car at intervals in the longitudinal direction, and the jacking conveying devices conduct jacking and longitudinal conveying operation on the steel rail.

Further, a pushing device is arranged on the second flat car, a fixed pulley is arranged on the first flat car, and the pushing device drives the steel rail to move through a traction device. When the steel rail is required to be conveyed to the first flatcar to be stored in the rail matching operation state, one end of the traction device is connected with the steel rail after passing through the fixed pulley, and the other end of the traction device is connected with the pushing device. When the steel rail is required to be unloaded to the ground in the rail unloading operation state, one end of the traction device is connected with the steel rail, and the other end of the traction device is connected with the pushing device.

Further, the first flat cars of a plurality of cars are connected to form a storage space of the steel rail with the required length.

Furthermore, in the rail unloading operation state, after the long steel rail is welded into a longer long rail bar by the welding module, the steel rail is unloaded to the center or the side of the rail through the rail unloading car, and the polishing operation of the steel rail is performed manually at the next skylight point.

Furthermore, in the rail unloading operation state, the welding module is used for unloading the long rail to the center or the side of the rail through rail changing after welding the long rail to form a longer long rail. Or the steel rail is directly changed into the rail bearing groove through the rail changing vehicle.

Further, the distance between the welding module and the polishing module is set to be the length of a section of standard steel rail, so that the current joint of the steel rail is subjected to welding treatment and polishing treatment at the same time in the rail matching operation state.

Further, in the rail matching operation state, the welding module performs normalizing and cooling treatment on the steel rail after finishing the welding operation on the steel rail. And after the polishing module finishes polishing operation on the steel rail, flaw detection treatment is performed on the steel rail.

Further, a plurality of jacking and conveying devices are arranged on the first flatcar at intervals in the longitudinal direction. And a transverse pushing device is arranged on the first flat car and is used for integrally conveying the steel rail on the jacking conveying device to a designated position on the first flat car along the transverse direction.

Further, a rail storage table for storing rails is arranged on the first flatcar. When the steel rail is loaded in the rail matching operation state, the steel rail is conveyed to the jacking conveying device from one end of the first flat car, and the steel rail is pushed to a designated position through the jacking conveying device. After reaching the appointed position, the jacking and conveying device descends to enable the steel rails to fall onto the transverse pushing device, the transverse pushing device transversely moves to two sides of the first flatcar, and a plurality of steel rails are sequentially stored below the rail storage platform.

Further, when the steel rail is unloaded in the rail unloading operation state, the transverse pushing device transversely moves to push the stored steel rail to the middle position of the first flat car, and the lifting conveying device lifts the steel rail and longitudinally pushes the steel rail to leave the first flat car.

Further, a plurality of groups of track beams are arranged on the first flatcar at intervals in the longitudinal direction, and the track beams are used for conveying and storing steel rails. And a plurality of rail shifting devices are arranged on the first flatcar at intervals along the longitudinal direction, and the movement direction of the steel rail is adjusted through the rail shifting devices so as to guide the steel rail into different spaces on the raceway beam.

By implementing the technical scheme of the continuous rail welding operation method provided by the application, the method has the following beneficial effects:

(1) The continuous rail welding operation method can simultaneously realize continuous long-time rail welding in the rail matching and rail unloading operation process, has high mechanization degree, improves the operation efficiency, saves a large amount of manpower, and can be well suitable for the characteristic of short skylight period of subway rail changing operation;

(2) The continuous rail welding operation method realizes effective connection with transportation after welding pretreatment and polishing, can realize synchronous construction of steel rail welding and polishing, and places the steel rail on a flat car through a jacking conveying device and a transverse pushing device after the steel rail is welded and polished on the car, thereby providing possibility for integrated construction of rail transportation, rail welding, polishing and rail replacement of the whole car;

(3) The continuous rail welding operation method of the application eliminates the fastener disassembling vehicle and the transition vehicle, greatly reduces the whole vehicle length, saves the space, has flexible grouping and high automation degree, is convenient for storing in a subway storage line, is particularly suitable for being used as a rail storing and transporting part to be connected and hung in a construction environment with narrow space such as a subway, and is combined with the construction vehicles such as rail unloading, rail changing and the like;

(4) According to the continuous rail welding operation method, the rail storage frame arched in the middle is matched with the longitudinal jacking conveying device and the transverse pushing device, stress concentration is not generated in the conveying process of the steel rail, meanwhile, a pavement is arranged for walking and placing other equipment, so that the steel rail can be stored on the rail transportation flat car, and the operation device can be placed by the personnel;

(5) According to the continuous rail welding operation method, the stable transfer and transportation of the whole steel rail are realized through the jacking conveying device and the transverse pushing device, automation is completely realized in the transfer process, the quality of the steel rail is effectively ensured while the space is saved, and the rail welding, rail transportation, rail unloading and rail changing can be realized, so that the operation mode is more flexible.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the application, from which other embodiments can be obtained for a person skilled in the art without inventive effort.

FIG. 1 is a schematic front view of a first embodiment of a continuous welding track operation system in a rail-laying operation state based on the method of the present application;

FIG. 2 is a schematic top view of a first embodiment of a continuous welding track operation system in a rail-laying operation state according to the method of the present application;

FIG. 3 is a schematic top view of the construction of a first embodiment of a continuous welding track system in accordance with the method of the present application in a rail-laying operation with a first flatcar (rail car) and a second flatcar (rail car);

FIG. 4 is a schematic diagram of a connection structure of a second embodiment of a continuous welding track operation system according to the present application in a track matching operation state;

FIG. 5 is a schematic diagram of a connection structure of a third embodiment of a continuous welding track operation system according to the present application in a track matching operation state;

FIG. 6 is a schematic diagram of a connection structure of a fourth embodiment of a continuous welding track operation system according to the present application in a change track operation state;

FIG. 7 is a schematic diagram of a connection structure of a fifth embodiment of a continuous welding track operation system according to the present application in a change track operation state;

FIG. 8 is a schematic front view of a first flatcar (rail car) in one embodiment of a continuous rail welding operation system on which the method of the present application is based;

FIG. 9 is a schematic front view of a third flatcar (grinding wagon) in an embodiment of a continuous rail welding operation system on which the method of the present application is based;

FIG. 10 is a schematic front view of a second flatcar (welded rail car) in one embodiment of a continuous rail welding operation system on which the method of the present application is based;

FIG. 11 is a schematic top view of a first flatcar (rail car) configuration of an exemplary embodiment of a continuous rail welding operation system upon which the method of the present application is based;

FIG. 12 is a schematic top view of a second flatcar (welded rail car) in one embodiment of a continuous rail welding operation system upon which the method of the present application is based;

FIG. 13 is a schematic top view of a third flatcar (sanding car) in one embodiment of a continuous rail welding operation system based on which the method of the present application is based;

FIG. 14 is a schematic diagram of a rail handling operation principle of an embodiment of a continuous rail welding operation system on which the method of the present application is based;

FIG. 15 is a schematic front view of the first flatcar (rail car) in another embodiment of the continuous rail welding operation system on which the method of the present application is based;

FIG. 16 is a schematic front view of a construction of a single section first flatcar (rail car) in another embodiment of a continuous welding track operation system upon which the method of the present application is based;

FIG. 17 is a front view of the principle of operation of a single first flatcar (rail car) in another embodiment of a continuous welding track operation system on which the method of the present application is based;

FIG. 18 is a schematic top plan view of a single first flatcar (rail car) in another embodiment of a continuous welding track operation system based on which the method of the present application is based;

FIG. 19 is a schematic view of a first flatcar (rail car) in a longitudinal view of a continuous rail welding operation system according to an embodiment of the present application;

FIG. 20 is a schematic view of the principle of operation of a first flatcar (rail car) in a longitudinal view of a continuous rail welding operation system based on the method of the present application;

FIG. 21 is a schematic view of a first flatcar (rail car) from a longitudinal perspective of another embodiment of a continuous rail welding operation system upon which the method of the present application is based;

FIG. 22 is a schematic diagram of the principle of operation of a first flatcar (rail car) in a top view of another embodiment of a continuous welding track operation system on which the method of the present application is based;

in the figure: 1-tractor, 2-first flatcar, 3-second flatcar, 4-rail matching, 5-rail unloading, 6-rail changing, 7-welding module, 8-third flatcar, 9-polishing module, 10-frame, 11-coupler, 12-bogie, 13-jacking conveying device, 14-transverse pushing device, 15-pushing device, 16-traction device, 17-fixed pulley, 18-raceway beam, 19-rail pulling device, 20-pavement, 21-rail storage platform, 22-arch, 23-railing, 24-roller and 25-rail.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Referring to fig. 1 to 22, specific embodiments of the continuous track welding operation method according to the present application are provided, and the present application will be further described with reference to the accompanying drawings and the specific embodiments.

Example 1

As shown in fig. 1 to 3, an embodiment of a continuous welding track system on which the method of the present application is based specifically includes:

a tractor 1;

a plurality of first flatcars 2 (i.e., rail cars) for storing and transporting rails 25;

at least one second trolley 3 (i.e. welded rail car) provided with welding modules 7;

and at least one third trolley 8 (i.e. a sanding trolley) provided with a sanding module 9.

The tractor 1, the first flatcar 2, the third flatcar 8 and the second flatcar 3 are connected in sequence.

An embodiment of the continuous rail welding operation method of the application specifically comprises the following steps:

s11) conveying the short steel rail on the rail distribution vehicle 4 to the second flat car 3 in the rail distribution operation state, and welding the short steel rail into a long steel rail by the welding module 7. The long steel rail is conveyed to the third flat wagon 8 again, and the polishing module 9 is used for polishing the welding line and then conveying the long steel rail to the first flat wagon 2 for storage.

S12) in the rail unloading operation state, the long rail on the first flatcar 2 is transported to the second flatcar 3, the long rail is welded into a longer long rail by the welding module 7, and then unloaded to the ground, and the polishing operation of the rail 25 is performed on the ground.

The first flatcar 2, the second flatcar 3 and the third flatcar 8 are used for providing installation reference, running and braking, carrying and storing various operation equipment, and further comprise a frame 10, a coupler 11 and a bogie 12, wherein the coupler 11 is used for being connected with other vehicles to form a group. The tractor 1, the first flatcar 2, the third flatcar 8 and the second flatcar 3 are connected through a coupler 11.

As shown in fig. 9, 10, 12 and 13, a plurality of lifting conveying devices 13 are arranged on the second trolley 3 and the third trolley 8 at intervals along the longitudinal direction (the direction shown as L in the drawing), and the lifting conveying devices 13 lift the steel rail 25 (control the height of the steel rail 25) and drive the steel rail 25 to move along the longitudinal direction, so that the longitudinal conveying operation is realized. The upper part of the jacking and conveying device 13 is provided with a roller 24, and the roller 24 can also be self-powered and is used for longitudinally conveying the steel rail 25.

As shown in fig. 9, a polishing module 9 is arranged on the third flatcar 8, and flaw detection equipment is further integrated for completing flaw detection operation after rail polishing. As shown in fig. 10, a welding module 7 is arranged on the second trolley 3, and a normalizing device and a cooling device are further integrated for completing normalizing and cooling operations after steel rail welding. After the welding operation of the rail 25 is completed by the welding module 7, the rail 25 is normalized and cooled. After the polishing module 9 finishes the polishing operation of the steel rail 25, flaw detection treatment is performed on the steel rail 25.

As shown in fig. 3 and 14, the third flatcar 8 has a rail transporting function, a pushing device 15 is arranged on the third flatcar, a traction device 16 is arranged on the pushing device 15, and the pushing device 15 drives a rail 25 to move through the traction device 16. A fixed pulley 17 is arranged on the first flatcar 2, and the fixed pulley 17 is used for matching the pushing device 15 and the traction device 16 to realize pushing of the steel rail 25. When the steel rail 25 is required to be conveyed to the first flatcar 2 for storage, one end of the traction device 16 is connected with the steel rail 25 after passing through the fixed pulley 17, and the other end is connected with the pushing device 15. When it is desired to unload rail 25 to the ground, one end of traction device 16 is connected to rail 25 and the other end is connected to pusher 15. As an exemplary embodiment of the present invention, the pushing device 15 may further specifically use a hoist, and the traction device 16 may further specifically use a wire rope, for supplementing the jacking and conveying device 13, to achieve traction and pushing of the steel rail 25. In this embodiment, the hoisting is only one structural implementation scheme, not limited to the implementation modes of the hoisting machine and the steel wire rope, and the conveying of the steel rail 25 can be achieved by other modes, such as: the transport of the rail 25 can be achieved by providing self-powered clamping wheels on the left and right sides of the rail 25.

A plurality of jacking and conveying devices 13 are arranged on the first flatcar 2 at intervals along the longitudinal direction. The first flatcar 2 is provided with a transverse pushing device 14, and the transverse pushing device 14 integrally conveys the steel rail 25 on the jacking and conveying device 13 to a designated position on the first flatcar 2 along the transverse direction (the direction shown as W in the drawing). The lateral pushing devices 14 are arranged at intervals in pairs in the longitudinal direction of the first flatcar 2, and move the rails 25 laterally to both sides of the first flatcar 2 for storage. The transverse pushing device 14 and the jacking and conveying device 13 realize the overall stable driving of the steel rail 25, the transfer process is fully automatic, and on the basis of realizing the overall transfer and conveying of the steel rail, the space is saved, and the quality of the steel rail 25 is ensured.

As shown in fig. 15 to 20, a rail storage table 21 for storing rails 25 is provided on the first carriage 2, and a camber 22 (a conveying line for the rails 25) for passing through the rails 25 is provided in the middle of the first carriage 2 in the longitudinal direction, the camber 22 being located at the same time at the upper portion of the jacking conveyor 13. The rail storage base 17 is a means for storing the rails 25, and when the rails 25 are stored in a horizontally movable manner, the rails 25 can be entirely moved sideways and stored on the rail storage base 21. On both sides of the arch 22 in the lateral direction, a walkway 20 for a person to walk and place equipment is provided at an upper portion of the rail storage table 21, and a guardrail 23 is provided at an outer side of the walkway 20. The walkway 20 is used for forming a passageway above the rail storage platform 21, can be convenient to overhaul and move on a flat car, and the guardrail 23 is used for protecting people when walking on the walkway. The rail storage table 21 with the arch 22 arranged above the middle part is matched with the vertically arranged jacking conveying device 13 and the transverse pushing device 14, stress concentration cannot be generated in the conveying process of the steel rail 25, the rail storage table is particularly suitable for combined construction with construction vehicles such as a rail unloading vehicle, a rail changing vehicle and the like under construction environments with narrow spaces such as subways and tunnels, and is used as a rail storage part and a rail conveying part for connecting and hanging, so that the function of simultaneously storing the steel rail 25 on the rail conveying vehicle and placing a working device by personnel is realized. In the embodiment, the technical scheme of the whole transverse movement of the steel rail is adopted, so that the transition length required by the deformation of the steel rail is saved, and a transition vehicle is eliminated, thereby greatly reducing the length of the whole vehicle.

When loading the rail 25, the rail 25 is conveyed from one end of the first flatcar 2 to the jacking conveyor 13 by the arch 22 in the middle, and the rail 25 is pushed to a specified position by the jacking conveyor 13. After reaching the designated position, the jacking and conveying device 13 descends to enable the steel rails 25 to fall onto the transverse pushing device 14, the transverse pushing device 14 transversely moves to two sides of the first flatcar 2, and a plurality of steel rails 25 are sequentially stored below the rail storage table 21.

When unloading the rails 25, the lateral pushing device 14 moves laterally to push the stored rails 25 to a position below the central arch 22 of the first flatcar 2, and the lifting conveying device 13 lifts the rails 25 and pushes the rails 25 longitudinally away from the first flatcar 2.

Before rail transportation operation, when loading the steel rail 25, a plurality of first flatcars 2 are connected through the coupler 11, the steel rail 25 is conveyed to the jacking conveying device 13 from one end of the first flatcar 2, and the steel rail 25 is pushed to a designated position through the jacking conveying device 13.

The jacking and conveying device 13 descends to enable the steel rails 25 to fall onto the transverse pushing device 14, the transverse pushing device 14 transversely moves to a designated position, and a plurality of steel rails 25 are sequentially stored below the rail storage table 21.

In the rail transport operation, the first flatcar 2 and the tractor 1 are grouped, and the rail 25 is transported and transferred.

After the rail transportation operation, when the rails 25 are unloaded, the lateral pushing device 14 moves laterally to push the stored rails 25 to the middle position, the lifting conveying device 13 lifts the rails 25, and the rails 25 are pushed away from the first flatcar 2 in the longitudinal direction.

Before the rail transport operation, the short rails are welded to the long rails and transported to the first flatcar 2 by the jacking transport device 13.

Before the rail unloading operation, the long rail is welded into a longer long rail after the rail 25 is conveyed away from the first flatcar 2 by the jacking conveying device 13.

As another modification of the rail transport and storage structure in this embodiment, as shown in fig. 21 and 22, a plurality of sets of track beams 18 are provided on the first flatcar 2 at intervals from each other in the longitudinal direction, the track beams 18 being used for transporting and storing rails 25. The raceway beams 18 are able to guide the rails 25 into different lanes for storage at different locations on the first flatcar 2 or for unloading to different locations on the ground during transportation of the rails 25. A plurality of rail pulling devices 19 are arranged on the first flatcar 2 at intervals along the longitudinal direction, the rail pulling devices 19 are used for adjusting the conveying direction of the steel rail 25, adjusting the deformation of the steel rail 25 and guiding the steel rail 25 into different spaces on the raceway beam 18. When the rail 25 is placed on the track beam 18 after the welding of the rail 25 from one side of the welding module 7, the rail pulling device 19 determines the spatial position of the rail 25 placed on the track beam 18. When the rail 25 is unloaded, it is transported from the track beam 18 to the side of the welding module 7, and the lateral position is shifted, and it is also necessary to adjust it by the rail pulling device 19. As a preferred embodiment of the application, the first flatcar 2 is provided with two layers of raceway beams 18, so that the rails 25 can be adjusted in height direction in addition to the lateral position. In addition, the position adjustment of the rail 25 in the lateral direction and in the height direction can also be achieved simultaneously by means of the mechanical arm structure. In the rail beam transport mode, the movement of the rail 25 between the rail car and the welded rail car requires a hoist and a wire rope to be pushed. Once the steel rail 25 enters the welding rail car, the pushing device arranged on the welding rail car can clamp the steel rail 25 for conveying, and the winch does not work any more or only plays an auxiliary role.

As a preferred embodiment of the invention, the distance between the welding module 7 and the grinding module 9 is the length of a section of standard rail 25, so that the welding process is performed on the current joint of the rail 25 and the grinding process is performed on the last joint. Such as: the distance between the welding module 7 on the second flatcar 3 and the polishing module 9 on the third flatcar 8 is 25m, and the welding module 7 is used for processing two welding joints when welding 25m standard short steel rails, polishing the last welding joint when welding one joint, and can realize synchronous welding, polishing and rust removal of the steel rails 25 during rail matching, thereby greatly improving the rail matching operation efficiency. When welding short rails of other lengths, only the distance between the welding module 7 and the grinding module 9 needs to be adjusted. The first flatcars 1 of a plurality of flatcars are connected to form a storage space of the steel rail 25 with the required length, and the loading and the transportation of the long steel rail can be realized after the connection.

As a typical embodiment of the present invention, the continuous rail welding operation method has two operation scenes in actual use, one scene is that 25m short rails on the rail car 4 are transported to the welding module 7 at the base, and the welding module 7 welds the 25m short rails into 100m long rails. Two steel rail conveying lines which are operated in parallel can be arranged on the rail distribution vehicle 4, wherein the first conveying line is used for carrying out welding pretreatment (such as rust removal), and the second conveying line is led to the welding module 7 for carrying out welding treatment. After the pretreatment of the first conveying line is completed, the steel rail 25 is lifted by the jacking conveying device 13 and is transversely transferred to the second conveying line to carry out welding operation, so that the pretreatment and the welding treatment can be synchronously carried out, the synchronization of welding and rust removal is realized, and the operation efficiency is further improved. Another scenario is that at the construction site, the long rail on the rail car (i.e. the first flatcar 2) is transported to the welding rail (i.e. the second flatcar 3), the long rail of 100m is welded into long rail strips of hundreds of meters (typically 500 m), and then unloaded to the ground through the rail unloading car 5 or unloaded to the ground through the rail changing car 6 (or the long rail strips are directly changed into the rail receiving groove). The rail 25 has three different forms according to the working state, one is a short rail before rail matching, the other is a long rail which is welded and polished and stored on a rail transportation vehicle, and the third is a long rail which is welded again and unloaded to the ground.

Before the steel rail welding operation, two sections of 25m short steel rails subjected to the pre-welding treatment (such as rust removal) are longitudinally conveyed to a rail welding vehicle and a grinding vehicle by a jacking conveying device 14, welding is finished at a welding module 7 by welding equipment, normalizing cooling and other treatments are carried out, and the treated 50m steel rails are longitudinally conveyed by the jacking conveying device 14. When the first rail joint reaches the position of the polishing module 9, the pretreated third 25m short rail is continuously welded at the welding module 7 to obtain a 75m rail. At the same time, the polishing module 9 polishes and inspects the first joint. And so on, the welding and polishing operations are continued synchronously until a long rail with the required length (such as 100 m) is obtained. After the long steel rail with the required length is obtained, the vertically arranged jacking and conveying device 13 continuously drives the steel rail 25 to move longitudinally, the jacking and conveying device 14 descends after the long steel rail arrives on the rail transportation vehicle, the long steel rail falls onto the transverse pushing device 14, the transverse pushing device 14 horizontally moves transversely, the long steel rail is sequentially stored on the rail storage table 21, and rail welding and polishing operation is completed.

In the continuous rail welding operation method described in example 1, during rail unloading, rail grinding operation is performed on the ground, the first skylight only performs welding and unloading of the rail 25, and the next skylight performs grinding operation of the rail welded joint (performed manually on the ground).

The continuous rail welding operation method described in embodiment 1 can complete synchronous construction operation of welding and polishing, and is effectively connected with pretreatment before welding and transportation procedures after polishing, thereby providing possibility for development of a subway overhaul integrated construction vehicle for rail gathering, rail welding, polishing and rail changing. The steel rail 25 is placed on the rail transportation vehicle through the jacking conveying device 13 and the transverse pushing device 14 after welding and polishing treatment are completed on the flat car, so that the transportation of the steel rail 25 is convenient, the mechanization degree is high, the operation efficiency is high, and a large amount of labor is saved. The continuous rail welding operation method described in embodiment 1 eliminates the fastener disassembling vehicle and the transition vehicle, greatly reduces the length of the whole vehicle, saves space, facilitates the storage of the whole vehicle in a subway storage line, has high automation degree and flexible grouping, and is well suitable for the operation working conditions in a subway tunnel and the characteristic of short skylight in the rail changing construction operation of the subway.

Example 2

As shown in fig. 4, another embodiment of a continuous track welding operation system based on the method of the present application specifically includes:

a tractor 1;

a plurality of first trolleys 2 for storing and transporting rails 25;

and at least one second trolley 3 provided with a welding module 7.

A polishing module 9 is arranged on the first flat car 2 connected with the second flat car 3.

The tractor 1, the first flatcar 2 and the second flatcar 3 are connected in sequence.

Another embodiment of the continuous rail welding operation method of the application specifically comprises the following steps:

s21) conveying the short steel rail on the rail distribution vehicle 4 to the second flat car 3 in the rail distribution operation state, and welding the short steel rail into a long steel rail by the welding module 7. The long steel rail is conveyed to the first flat wagon 2 again, and the long steel rail is stored on the first flat wagon 2 after being subjected to welding seam polishing treatment by a polishing module 9.

S22) in the rail unloading operation state, the long rail on the first flatcar 2 is transported to the second flatcar 3, the long rail is welded into a longer long rail by the welding module 7, and then unloaded to the ground, and the polishing operation of the rail 25 is performed on the ground.

A plurality of jacking and conveying devices 13 are arranged on the first flatcar 2 and the second flatcar 3 at intervals along the longitudinal direction, and the jacking and conveying devices 13 perform jacking and longitudinal conveying operation on the steel rail 25.

A pushing device 15 is arranged on the second flat carriage 3, a fixed pulley 17 is arranged on the first flat carriage 2, and the pushing device 15 drives a steel rail 25 to move through a traction device 16. When the steel rail 25 is required to be conveyed to the first flatcar 2 for storage, one end of the traction device 16 is connected with the steel rail 25 after passing through the fixed pulley 17, and the other end is connected with the pushing device 15. When it is desired to unload rail 25 to the ground, one end of traction device 16 is connected to rail 25 and the other end is connected to pusher 15.

Set up the module of polishing 9 on fortune rail car, the interval 25m between module of polishing 9 and the welding module 7 for polish can go on with welding, rust cleaning processing is synchronous, promotes operating efficiency by a wide margin.

The other more detailed technical solutions may be specifically described with reference to embodiment 1, and will not be described herein.

Example 3

In this embodiment, the rail car (i.e., the first flatcar 2) adopts a track beam structure, and the polishing module 9 is placed on the rail car 4 (there is no space on the rail car adopting the track beam structure in which the polishing module 9 can be placed). As shown in fig. 5, an embodiment of a continuous welding track operation system on which the third method of the present application is based specifically includes:

a plurality of first trolleys 2 for storing and transporting rails 25;

and at least one second trolley 3 provided with a welding module 7.

The tractor 1, the first flatcar 2 and the second flatcar 3 are connected in sequence.

The continuous track welding operation system further comprises a track distribution vehicle 4 connected with the second trolley 3 in a track distribution operation state, and a polishing module 9 is arranged on the track distribution vehicle 4.

Another embodiment of the continuous rail welding operation method of the application specifically comprises the following steps:

s31) in the rail-laying operation state, the short rail is transferred from the rail-laying vehicle 4 to the second flatcar 3, and the short rail is welded into the long rail by the welding module 7. The long steel rail is reversely conveyed to the rail distribution vehicle 4, welded seam polishing treatment is carried out by the polishing module 9, the long steel rail is stored on the first flat vehicle 2, and the welding module 7 is used for welding the joint of the next steel rail 25.

S32) in the rail unloading operation state, the long rail on the first carriage 2 is transferred to the second carriage 3, the long rail is welded into a longer long rail by the welding module 7, and then unloaded to the ground, and the polishing operation of the rail 25 is performed on the ground.

A plurality of jacking and conveying devices 13 are arranged on the first flatcar 2 and the second flatcar 3 at intervals along the longitudinal direction, and the jacking and conveying devices 13 jack the steel rail 25 and drive the steel rail 25 to move along the longitudinal direction, so that the longitudinal conveying operation is realized.

A pushing device 15 is arranged on the second flat carriage 3, a fixed pulley 17 is arranged on the first flat carriage 2, and the pushing device 15 drives a steel rail 25 to move through a traction device 16. When the steel rail 25 is required to be conveyed to the first flatcar 2 for storage, one end of the traction device 16 is connected with the steel rail 25 after passing through the fixed pulley 17, and the other end is connected with the pushing device 15. When it is desired to unload rail 25 to the ground, one end of traction device 16 is connected to rail 25 and the other end is connected to pusher 15.

In the continuous rail welding operation method described in example 3, during rail unloading, the rail grinding operation is performed on the ground, the first skylight only performs welding and unloading of the rail 25, and the next skylight performs the rail welded joint grinding operation (performed manually on the ground).

The other more detailed technical solutions may be specifically described with reference to embodiment 1, and will not be described herein.

Example 4

A fourth embodiment of the continuous welding operation method according to the present application is based on the foregoing embodiments 1 to 3, and the continuous welding operation system according to the present application further includes a rail discharging car 5 connected to the second carriage 3 in a rail discharging operation state. The continuous rail welding operation method further comprises the step that after the long steel rail is welded into a longer long rail bar by the welding module 7, the steel rail 25 is unloaded to the center or the side of the rail through the rail unloading car 5, and the polishing operation of the steel rail 25 is performed manually at the next skylight point. For example: in one embodiment shown in fig. 6, the continuous track welding operation system comprises a tractor 1, a first flat car 2, a second flat car 3 and a track unloading car 5 which are sequentially connected in a track unloading operation state, and a welding module 7 is arranged on the second flat car 3.

In this embodiment, the rail welding machine (i.e., the second flatcar 3) only performs the welding treatment of the steel rail 25, and the normalizing treatment may be performed by normalizing equipment on the rail welding machine, or may be performed manually under the rail welding machine (the rail can be immediately removed after the welding treatment, and the welding of the next steel rail 25 can be performed) for improving the working efficiency. The grinding operation of the rail 25 is performed manually at the next skylight point.

If an integral conveying mode is adopted, conveying the steel rail 25 by integrally conveying through the jacking conveying device 13 and the transverse pushing device 14 during rail unloading; if the track is unloaded by the conveying mode of the track beam structure, the conveying and position adjustment of the steel rail 25 are realized by the track pulling device 19 matched with the pushing device 15 and the traction device 16.

The other more detailed technical solutions may be specifically described with reference to embodiment 1, and will not be described herein.

Example 5

In a fifth embodiment of the continuous track welding operation method according to the present application, on the basis of the foregoing embodiments 1 to 3, the continuous track welding operation system on which the method according to the present application is based further includes a rail changing truck 6 connected to the second carriage 3 in a rail unloading operation state. The continuous rail welding operation method further comprises the steps that after the long steel rail is welded into a longer long rail bar by the welding module 7, the steel rail 25 is unloaded to the center or the side of a rail through the rail changing machine 6; or the rail 25 is directly changed into the rail bearing groove through the rail changing machine 6. For example: in one embodiment shown in fig. 7, the continuous track welding operation system comprises a tractor 1, a first flat car 2, a second flat car 3 and a track changing car 6 which are sequentially connected in a track unloading operation state, and a welding module 7 is arranged on the second flat car 3.

The other more detailed technical solutions may be specifically described with reference to embodiment 1, and will not be described herein.

In the description of the present application, it will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" or "a number" means two or more, unless specifically defined otherwise.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the application, which is defined by the claims, but rather by the claims, unless otherwise indicated, and that any structural modifications, proportional changes, or dimensional adjustments, which would otherwise be apparent to those skilled in the art, would be made without departing from the spirit and scope of the application.

By implementing the technical scheme of the continuous rail welding operation method described by the specific embodiment of the application, the following technical effects can be produced:

(1) The continuous rail welding operation method described by the specific embodiment of the application can realize continuous long-time rail welding in the rail matching and rail unloading operation process at the same time, has high mechanical degree, improves the operation efficiency, saves a large amount of manpower, and can be well suitable for the characteristic of short skylight period of subway rail changing operation;

(2) The continuous rail welding operation method described in the specific embodiment of the application realizes effective connection with the transportation after the welding pretreatment and polishing, can realize synchronous construction of the welding and polishing of the steel rail, and the steel rail is placed on a flat car through a jacking conveying device and a transverse pushing device after the welding and polishing are completed on the car, thereby providing possibility for integrated construction of rail transportation, rail welding, polishing and rail replacement of the whole car;

(3) The continuous rail welding operation method described by the specific embodiment of the application omits a fastener disassembling vehicle and a transition vehicle, greatly reduces the whole vehicle length, saves space, has flexible grouping and high automation degree, is convenient to store in a subway storage line, is particularly suitable for being used as a rail storage and rail transportation part to be connected and hung in a construction environment with narrow space such as a subway and the like, and is combined with construction vehicles such as rail unloading, rail changing and the like;

(4) According to the continuous rail welding operation method described in the specific embodiment of the application, the rail storage frame arched in the middle is matched with the longitudinal jacking conveying device and the transverse pushing device, so that stress concentration is not generated in the conveying process of the steel rail, meanwhile, by arranging a pavement for walking and placing other equipment, the rail can be stored on the rail transportation flat car, and the operation device can be placed by the personnel;

(5) According to the continuous rail welding operation method, the jacking conveying device and the transverse pushing device are used for realizing the stable transfer and transportation of the whole steel rail, the automation of the transfer process is completely realized, the space is saved, the quality of the steel rail is effectively ensured, the rail welding, rail transportation, rail unloading and rail replacement can be realized, and the operation mode is more flexible.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by a difference from other embodiments, and identical and similar parts between the embodiments are referred to each other.

The above description is only of the preferred embodiment of the present application, and is not intended to limit the present application in any way. While the application has been described in terms of preferred embodiments, it is not intended to be limiting. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present application or equivalent embodiments using the method and technical solution disclosed above without departing from the spirit and technical solution of the present application. Therefore, any simple modification, equivalent substitution, equivalent variation and modification of the above embodiments according to the technical substance of the present application still fall within the scope of the technical solution of the present application, unless departing from the technical solution of the present application.

Claims (18)

1. A continuous rail welding operation method, which is characterized by comprising the following steps:

s11) conveying the short steel rail on the rail distribution vehicle (4) to a second trolley (3) in a rail distribution operation state, and welding the short steel rail into a long steel rail by a welding module (7); the long steel rail is conveyed to a third flatcar (8), and the polishing module (9) is used for polishing a welding line and then conveying the long steel rail to the first flatcar (2) for storage;

S12) in a rail unloading operation state, long rails on the first flatcar (2) are conveyed to the second flatcar (3), the long rails are welded into longer long rails by the welding module (7) and then unloaded to the ground, and polishing operation of the rails (25) is performed on the ground.

2. The continuous rail welding operation method according to claim 1, wherein: and a plurality of jacking and conveying devices (13) are arranged on the second flatcar (3) and the third flatcar (8) at intervals along the longitudinal direction, and the jacking and conveying devices (13) perform jacking and longitudinal conveying operation on the steel rail (25).

3. The continuous rail welding operation method according to claim 2, wherein: a pushing device (15) is arranged on the third flatcar (8), a fixed pulley (17) is arranged on the first flatcar (2), and the pushing device (15) drives a steel rail (25) to move through a traction device (16); when the steel rail (25) is required to be conveyed to the first flatcar (2) for storage in a rail matching operation state, one end of the traction device (16) is connected with the steel rail (25) through the fixed pulley (17) and the other end is connected with the pushing device (15); when the steel rail (25) is required to be unloaded to the ground in the rail unloading operation state, one end of the traction device (16) is connected with the steel rail (25), and the other end is connected with the pushing device (15).

4. A continuous rail welding operation method, which is characterized by comprising the following steps:

s21) conveying the short steel rail on the rail distribution vehicle (4) to a second trolley (3) in a rail distribution operation state, and welding the short steel rail into a long steel rail by a welding module (7); the long steel rail is conveyed to the first flat wagon (2), and the long steel rail is stored on the first flat wagon (2) after being subjected to welding seam polishing treatment by a polishing module (9);

s22) in a rail unloading operation state, long rails on the first flatcar (2) are conveyed to the second flatcar (3), the long rails are welded into longer long rail bars by the welding module (7) and then unloaded to the ground, and polishing operation of the rails (25) is performed on the ground.

5. The continuous rail welding operation method according to claim 4, wherein: and a plurality of jacking conveying devices (13) are arranged on the second flat car (3) at intervals along the longitudinal direction, and the jacking conveying devices (13) perform jacking and longitudinal conveying operation on the steel rail (25).

6. The continuous rail welding operation method according to claim 5, wherein: a pushing device (15) is arranged on the second flat car (3), a fixed pulley (17) is arranged on the first flat car (2), and the pushing device (15) drives a steel rail (25) to move through a traction device (16); when the steel rail (25) is required to be conveyed to the first flatcar (2) for storage in a rail matching operation state, one end of the traction device (16) is connected with the steel rail (25) through the fixed pulley (17) and the other end is connected with the pushing device (15); when the steel rail (25) is required to be unloaded to the ground in the rail unloading operation state, one end of the traction device (16) is connected with the steel rail (25), and the other end is connected with the pushing device (15).

7. A continuous rail welding operation method, which is characterized by comprising the following steps:

s31) conveying the short steel rail on the rail distribution vehicle (4) to a second trolley (3) in a rail distribution operation state, and welding the short steel rail into a long steel rail by a welding module (7); the long steel rail is reversely conveyed to the rail distribution vehicle (4), welded seam polishing is carried out by a polishing module (9), and then the long steel rail is stored on the first flat car (2), and the welding module (7) carries out welding of a joint of the next steel rail (25);

s32) in a rail unloading operation state, long rails on the first flatcar (2) are conveyed to the second flatcar (3), the long rails are welded into longer long rail strips by the welding module (7) and then unloaded to the ground, and polishing operation of the rails (25) is performed on the ground.

8. The continuous rail welding operation method according to claim 7, wherein: and a plurality of jacking conveying devices (13) are arranged on the second flat car (3) at intervals along the longitudinal direction, and the jacking conveying devices (13) perform jacking and longitudinal conveying operation on the steel rail (25).

9. The continuous rail welding operation method according to claim 8, wherein: a pushing device (15) is arranged on the second flat car (3), a fixed pulley (17) is arranged on the first flat car (2), and the pushing device (15) drives a steel rail (25) to move through a traction device (16); when the steel rail (25) is required to be conveyed to the first flatcar (2) for storage in a rail matching operation state, one end of the traction device (16) is connected with the steel rail (25) through the fixed pulley (17) and the other end is connected with the pushing device (15); when the steel rail (25) is required to be unloaded to the ground in the rail unloading operation state, one end of the traction device (16) is connected with the steel rail (25), and the other end is connected with the pushing device (15).

10. The continuous rail welding operation method according to claim 2, 3, 5, 6, 8 or 9, characterized in that: and connecting and hanging a plurality of first flatcars (1) to form a storage space of a steel rail (25) with a required length.

11. The continuous rail welding operation method according to claim 10, wherein: in a rail unloading operation state, after the long steel rail is welded into a longer long rail by the welding module (7), the steel rail (25) is unloaded to a rail center or a rail side through the rail unloading vehicle (5), and the polishing operation of the steel rail (25) is performed manually at the next skylight point.

12. The continuous rail welding operation method according to claim 10, wherein: in a rail unloading operation state, the welding module (7) is used for unloading the steel rail (25) to the center or the side of a road through the rail changing vehicle (6) after welding the long steel rail into a longer long rail bar; or the steel rail (25) is directly changed into the rail bearing groove through the rail changing vehicle (6).

13. The continuous rail welding operation method according to claim 2, 3, 5, 6, 8, 9, 11 or 12, characterized in that: the distance between the welding module (7) and the polishing module (9) is set to be the length of a section of standard steel rail (25), so that the current joint of the steel rail (25) is subjected to welding treatment and polishing treatment at the same time.

14. The continuous rail welding operation method according to claim 13, wherein: in the rail matching operation state, after the welding operation of the steel rail (25) is completed by the welding module (7), normalizing and cooling the steel rail (25); and after the polishing module (9) finishes polishing the steel rail (25), carrying out flaw detection treatment on the steel rail (25).

15. The continuous rail welding operation method according to claim 2, 3, 5, 6, 8, 9, 11, 12 or 14, characterized in that: a plurality of jacking conveying devices (13) are longitudinally arranged on the first flatcar (2) at intervals; the transverse pushing device (14) is arranged on the first flatcar (2), and the transverse pushing device (14) integrally conveys the steel rail (25) on the jacking conveying device (13) to a designated position on the first flatcar (2) along the transverse direction.

16. The continuous rail welding operation method according to claim 15, wherein: a rail storage table (21) for storing rails (25) is arranged on the first flatcar (2); when the steel rail (25) is loaded in a rail matching operation state, the steel rail (25) is conveyed to the jacking conveying device (13) from one end of the first flat car (2), and the steel rail (25) is pushed to a designated position through the jacking conveying device (13); after reaching the appointed position, the jacking and conveying device (13) descends to enable the steel rails (25) to fall onto the transverse pushing device (14), the transverse pushing device (14) transversely moves to two sides of the first flatcar (2), and a plurality of steel rails (25) are sequentially stored below the rail storage platform (21).

17. The continuous rail welding operation method according to claim 16, wherein: when the steel rail (25) is unloaded in a rail unloading operation state, the transverse pushing device (14) transversely moves to push the stored steel rail (25) to the middle position of the first flat car (2), the lifting conveying device (13) lifts the steel rail (25) and pushes the steel rail (25) longitudinally to leave the first flat car (2).

18. The continuous rail welding operation method according to claim 2, 3, 5, 6, 8, 9, 11, 12, 14, 16 or 17, characterized in that: a plurality of groups of track beams (18) are arranged on the first flatcar (2) at intervals along the longitudinal direction, and the track beams (18) are used for conveying and storing steel rails (25); a plurality of rail pulling devices (19) are arranged on the first flatcar (2) at intervals along the longitudinal direction, the moving direction of the steel rail (25) is adjusted through the rail pulling devices (19), and the steel rail (25) is guided into different spaces on the raceway beam (18).