A continuous rail welding system

Abstract

The application discloses a continuous rail welding operation system, which comprises a first flat car for storing and conveying steel rails, at least one second flat car provided with a welding module, and at least one third flat car provided with a grinding module. The first flat car, the third flat car and the second flat car are sequentially connected. In the rail distribution operation state, short steel rails are conveyed to the second flat car, and the short steel rails are welded into long steel rails by the welding module. The long steel rails are conveyed to the third flat car, and then conveyed to the first flat car after being polished by the grinding module. In the rail unloading operation state, the long steel rails on the first flat car are conveyed to the second flat car, and then unloaded to the ground after being welded into longer long rails by the welding module. The application can solve the technical problems that the existing rail welding operation system cannot realize continuous long-time rail welding during the rail distribution and unloading operation processes, the operation efficiency is low, and the system cannot adapt to the short window period of metro rail replacement operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of railway engineering machinery, and in particular to a rail welding operation system applied to continuous rail welding. BACKGROUND

[0002] Railway rails need to be replaced when they reach a certain service life. In the current process of metro rail replacement, rail welding operation is to transport 25m short rails to the site by flat cars, and then weld them into long rails on the ground through multiple window points. However, the existing railways in China mainly use seamless rails, and continuous welding of short rails into long rails is often required during railway construction. The existing rail welding operation is mainly carried out through rail welding bases and rail welding cars. The existing rail welding bases have high construction cost and long construction period, and cannot be moved. The existing rail welding car has low operation efficiency and is only suitable for short-time rail welding at the construction site. These factors limit the operation scenarios including rail replacement, rail distribution, rail unloading, and the operation efficiency of continuous on-site welding after transporting short rails to the site.

[0003] In the prior art, although Chinese invention applications CN110977221A and CN104499390A and Chinese utility model patent CN201835195U disclose several rail welding cars for rail welding, these rail welding cars can only complete single rail welding operation, and are not convenient for connection with post-welding processes such as grinding and transportation, and are not conducive to the realization of an integrated construction vehicle scheme. Chinese invention application CN107338690A discloses a rail replacement operation vehicle, which includes a replacement module, a loading and unloading module, and a transportation module connected in sequence along the operation direction. The transportation module loads and transports new rails. The loading and unloading module is provided with a rail conveying device, which conveys new rails to the replacement module. The loading and unloading module is provided with a rail distribution device, which adjusts the new rails conveyed to an appropriate interval. The replacement module removes the old rails from the rail sleeper slot and unloads the new rails conveyed by the rail conveying device into the rail sleeper slot. The invention application can complete all operations of rail unloading, rail replacement, and rail collection in one window point, saves the time for unloading new rails in the traditional rail replacement construction method, and effectively avoids safety hazards in the rail replacement operation.

[0004] Due to the short operation window of metro construction, the rail replacement operation vehicle disclosed in Chinese invention application CN107338690A cannot simultaneously realize continuous long-time rail welding during rail distribution and rail unloading operation, has low operation efficiency, and is not suitable for the existing metro rail replacement operation. At the same time, the rail replacement operation vehicle includes a fastener removal vehicle, which greatly increases the length of the whole vehicle and is not convenient for storage of the whole vehicle in the metro storage track. SUMMARY

[0005] Therefore, the present application aims to provide a continuous rail welding operation system to solve the technical problems of the prior art that the existing rail welding operation system cannot realize continuous long-time rail welding during the rail arrangement and unloading operation processes, and the operation efficiency is low, and the system cannot adapt to the short window period of metro rail replacement operation.

[0006] To achieve the above-mentioned application purposes, the present application specifically provides a technical implementation scheme of a continuous rail welding operation system, which comprises:

[0007] a first flat car for storing and conveying rails;

[0008] at least one second flat car provided with a welding module;

[0009] and at least one third flat car provided with a grinding module.

[0010] The first flat car, the third flat car and the second flat car are sequentially connected.

[0011] In the rail arrangement operation state, short rails are conveyed to the second flat car, and the short rails are welded into long rails by the welding module. The long rails are then conveyed to the third flat car, and the long rails are subjected to weld grinding treatment by the grinding module and then conveyed to the first flat car for storage.

[0012] In the rail unloading operation state, the long rails on the first flat car are conveyed to the second flat car, and the long rails are welded into longer long rails by the welding module and then unloaded to the ground.

[0013] Further, a plurality of jacking conveying devices are longitudinally arranged on the second flat car and the third flat car, and the jacking conveying devices are used for jacking and longitudinally conveying the rails.

[0014] Further, a pushing device is arranged on the third flat car, the pushing device drives the rails to move through a traction device, and a fixed pulley is arranged on the first flat car. When it is needed to convey the rails to the first flat car for storage, one end of the traction device is connected to the rails through the fixed pulley, and the other end of the traction device is connected to the pushing device. When it is needed to unload the rails to the ground, one end of the traction device is connected to the rails, and the other end of the traction device is connected to the pushing device.

[0015] The present application also specifically provides another technical implementation scheme of a continuous rail welding operation system, which comprises:

[0016] a first flat car for storing and conveying rails;

[0017] and at least one second flat car provided with a welding module;

[0018] A grinding module is arranged on the first flat car connected to the second flat car.

[0019] The first flat car is connected with the second flat car.

[0020] In the rail matching operation state, the short steel rails are transported to the second flat car, and the short steel rails are welded into long steel rails by the welding module. The long steel rails are transported to the first flat car and stored after being welded seam polished by the polishing module.

[0021] In the rail unloading operation state, the long steel rails on the first flat car are transported to the second flat car, and the long steel rails are welded into longer long rails by the welding module and then unloaded to the ground.

[0022] Further, a plurality of jacking and transporting devices are arranged on the second flat car in the longitudinal direction, and the jacking and transporting devices are used for jacking and longitudinal transporting of the steel rails.

[0023] Further, a pushing device is arranged on the second flat car, the pushing device drives the steel rails to move through a traction device, and a fixed pulley is arranged on the first flat car. When the steel rails need to be transported to the first flat car for storage, one end of the traction device is connected with the steel rails through the fixed pulley, and the other end is connected with the pushing device. When the steel rails need to be unloaded to the ground, one end of the traction device is connected with the steel rails, and the other end is connected with the pushing device.

[0024] The application further provides a third continuous rail welding operation system, which comprises:

[0025] a first flat car for storing and transporting steel rails;

[0026] and at least one second flat car provided with a welding module.

[0027] The first flat car is connected with the second flat car.

[0028] In the rail matching operation state, the short steel rails are transported to the second flat car, and the short steel rails are welded into long steel rails by the welding module. The long steel rails are transported to the first flat car and stored after being welded seam polished by the polishing module.

[0029] In the rail unloading operation state, the long steel rails on the first flat car are transported to the second flat car, and the long steel rails are welded into longer long rails by the welding module and then unloaded to the ground.

[0030] Further, a plurality of jacking and transporting devices are arranged on the second flat car in the longitudinal direction, and the jacking and transporting devices are used for jacking and longitudinal transporting of the steel rails.

[0031] Further, the second flat car is provided with a pushing device, the pushing device drives the steel rail to move through a traction device, and the first flat car is provided with a fixed pulley.

[0032] Further, the system further comprises a rail matching car connected with the second flat car in a rail matching operation state, and the rail matching car is provided with a grinding module.

[0033] Further, in the rail matching operation state, the short steel rails are transported from the rail matching car to the second flat car, and the short steel rails are welded into long steel rails by the welding module. The long steel rails are reversely transported to the rail matching car, stored on the first flat car after being polished by the grinding module, and the welding module welds the next rail joint.

[0034] Further, a plurality of first flat cars are connected to form a storage space of a steel rail with a required length.

[0035] Further, the system further comprises a rail unloading car connected with the second flat car in a rail unloading operation state, and the welding module welds the long steel rails into longer long rails, and then the rail unloading car unloads the steel rails to the track center or the track side, and the polishing operation of the steel rails is performed manually at the next sky window point.

[0036] Further, the system further comprises a rail unloading car connected with the second flat car in a rail unloading operation state, and the welding module welds the long steel rails into longer long rails, and then the rail unloading car unloads the steel rails to the track center or the track side; or the rail unloading car directly changes the steel rails into the rail bearing groove.

[0037] Further, the distance between the welding module and the grinding module is the length of a standard steel rail, so that the current joint of the steel rail is welded while the previous joint is polished.

[0038] Further, the welding module is further integrated with a normalizing device and a cooling device for completing the normalizing and cooling operation after the steel rail is welded. The grinding module is further integrated with a flaw detection device for completing the flaw detection operation after the steel rail is polished.

[0039] Further, a plurality of jacking conveying devices are provided on the first flat car in the longitudinal direction. The first flat car is provided with a transverse pushing device, and the transverse pushing device is used to integrally convey the steel rails on the jacking conveying devices to a designated position on the first flat car in the transverse direction.

[0040] Further, the first flat car is provided with a rail storage platform for storing rails, and the middle part of the first flat car in the longitudinal direction is provided with an arch for passing through the rails, which is located on the upper part of the lifting conveying device. On both sides of the arch in the transverse direction, the upper part of the rail storage platform is provided with a walkway for personnel walking and placing equipment, and the outer side of the walkway is provided with a guardrail.

[0041] Further, when loading the rails, the rails are conveyed from one end of the first flat car to the lifting conveying device through the arch in the middle part, and the rails are pushed to the designated position by the lifting conveying device. After reaching the designated position, the lifting conveying device is lowered to make the rails fall onto the transverse pushing device, which moves to both sides of the first flat car in the transverse direction to sequentially store several rails below the rail storage platform. When unloading the rails, the transverse pushing device moves transversely to push the stored rails to the position below the arch in the middle part of the first flat car, the rails are lifted by the lifting conveying device, and the rails are pushed away from the first flat car in the longitudinal direction.

[0042] Further, the first flat car is provided with a rail storage platform for storing rails, and the middle part of the first flat car in the longitudinal direction is provided with an arch for passing through the rails, which is located on the upper part of the lifting conveying device. On both sides of the arch in the transverse direction, the upper part of the rail storage platform is provided with a walkway for personnel walking and placing equipment, and the outer side of the walkway is provided with a guardrail.

[0043] By implementing the technical scheme of the continuous rail welding operation system provided in the present application, the following beneficial effects are achieved:

[0044] (1) The continuous rail welding operation system of the present application can realize continuous and long-time rail welding during the rail arranging and unloading operation process, has high mechanization degree, improves the operation efficiency, saves a large amount of labor, and can well adapt to the short sky window period of metro rail replacement operation;

[0045] (2) The continuous rail welding operation system of the present application effectively connects the pre-welding treatment and the post-grinding transportation, can realize synchronous construction of rail welding and grinding, and places the rails on the flat car through the lifting conveying device and the transverse pushing device after the rails are welded and ground on the car, which provides the possibility for integrated construction of whole vehicle rail transportation, rail welding, grinding, and rail replacement;

[0046] (3) The continuous rail welding operation system of the present application cancels the fastener removal car and the transition car, greatly reduces the length of the whole vehicle, saves space, has flexible marshalling, has high automation degree, is convenient for storing in the metro storage track, and is especially suitable for being connected with the rail unloading and rail replacement construction vehicles for combined construction in the narrow construction environment of the metro and the like as a rail storage and transportation part;

[0047] (4) The continuous rail welding operation system of the present application adopts the rail storage frame with the middle arch cooperating with the longitudinal jacking conveying device and the transverse pushing device, so that no stress concentration is generated in the conveying process of the steel rail, and the walkway is arranged for personnel walking and placing other equipment, so that the steel rail can be stored on the rail flat car, passed by personnel and placed with the operation device;

[0048] (5) The continuous rail welding operation system of the present application realizes the stable transfer and transportation of the whole steel rail through the jacking conveying device and the transverse pushing device, the transfer process is completely realized in an automatic manner, 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. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other embodiments can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0050] Figure 1 is a structure schematic front view of the first specific embodiment of the continuous rail welding operation system of the present application in the rail matching operation state;

[0051] Figure 2 is a structure schematic top view of the first specific embodiment of the continuous rail welding operation system of the present application in the rail matching operation state;

[0052] Figure 3 is a structure schematic top view of the first flat car (rail transportation car) and the second flat car (rail welding car) of the first specific embodiment of the continuous rail welding operation system of the present application in the rail matching operation state;

[0053] Figure 4 is a connection structure schematic view of the second specific embodiment of the continuous rail welding operation system of the present application in the rail matching operation state;

[0054] Figure 5 is a connection structure schematic view of the third specific embodiment of the continuous rail welding operation system of the present application in the rail matching operation state;

[0055] Figure 6 is a connection structure schematic view of the fourth specific embodiment of the continuous rail welding operation system of the present application in the rail replacement operation state;

[0056] Figure 7 is a connection structure schematic view of the fifth specific embodiment of the continuous rail welding operation system of the present application in the rail replacement operation state;

[0057] Figure 8 is a structural schematic front view of a first flat car (track carrying car) in one specific embodiment of the continuous track welding operation system of the present application;

[0058] Figure 9 is a structural schematic front view of a third flat car (polishing car) in one specific embodiment of the continuous track welding operation system of the present application;

[0059] Figure 10 is a structural schematic front view of a second flat car (track welding car) in one specific embodiment of the continuous track welding operation system of the present application;

[0060] Figure 11 is a structural schematic top view of a first flat car (track carrying car) in one specific embodiment of the continuous track welding operation system of the present application;

[0061] Figure 12 is a structural schematic top view of a second flat car (track welding car) in one specific embodiment of the continuous track welding operation system of the present application;

[0062] Figure 13 is a structural schematic top view of a third flat car (polishing car) in one specific embodiment of the continuous track welding operation system of the present application;

[0063] Figure 14 is a schematic diagram of the operation principle of a track carrying operation in one specific embodiment of the continuous track welding operation system of the present application;

[0064] Figure 15 is a structural schematic front view of a first flat car (track carrying car) in another specific embodiment of the continuous track welding operation system of the present application;

[0065] Figure 16 is a structural schematic front view of a single-section first flat car (track carrying car) in another specific embodiment of the continuous track welding operation system of the present application;

[0066] Figure 17 is a schematic diagram of the operation principle of a single-section first flat car (track carrying car) in another specific embodiment of the continuous track welding operation system of the present application;

[0067] Figure 18 is a schematic diagram of the operation principle of a single-section first flat car (track carrying car) in another specific embodiment of the continuous track welding operation system of the present application;

[0068] Figure 19 is a structural schematic view of a first flat car (track carrying car) in one specific embodiment of the continuous track welding operation system of the present application from a longitudinal perspective;

[0069] Figure 20 is a schematic diagram of the operation principle of a first flat car (track carrying car) in one specific embodiment of the continuous track welding operation system of the present application from a longitudinal perspective;

[0070] Figure 21 is a structure schematic view of the first flat car (rail transport car) in the longitudinal view of another specific embodiment of the continuous rail welding operation system of the present application;

[0071] Figure 22 is a working principle schematic view of the first flat car (rail transport car) in the overhead view of another specific embodiment of the continuous rail welding operation system of the present application;

[0072] In the figure: 1 - towing vehicle, 2 - first flat car, 3 - second flat car, 4 - rail matching car, 5 - rail unloading car, 6 - rail changing car, 7 - welding module, 8 - third flat car, 9 - polishing module, 10 - car frame, 11 - car coupler, 12 - bogie, 13 - jacking and conveying device, 14 - transverse pushing device, 15 - pushing device, 16 - traction device, 17 - fixed pulley, 18 - running rail, 19 - rail shifting device, 20 - walkway, 21 - rail storage platform, 22 - arch, 23 - railing, 24 - roller, 25 - steel rail. DETAILED DESCRIPTION

[0073] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0074] As shown in the drawings, Figure 1 to Figure 22 , the specific embodiments of the continuous rail welding operation system of the present application are given, and the present application will be further described below in combination with the drawings and specific embodiments.

[0075] Embodiment 1

[0076] As shown in the drawings, Figure 1 to Figure 3 , an embodiment of the continuous rail welding operation system of the present application specifically includes:

[0077] a towing vehicle 1;

[0078] a first flat car 2 (i.e. rail transport car) for storing and conveying steel rails 25;

[0079] at least one second flat car 3 (i.e. rail welding car) provided with a welding module 7;

[0080] and at least one third flat car 8 (i.e. polishing car) provided with a polishing module 9.

[0081] Tractor 1, first flatcar 2, third flatcar 8 and second flatcar 3 are coupled together in sequence.

[0082] During the track alignment process, the short rails on the track alignment vehicle 4 are transported to the second flatcar 3, where the welding module 7 welds the short rails into long rails. The long rails are then transported to the third flatcar 8, where the grinding module 9 grinds the weld seams before transporting them to the first flatcar 2 for storage.

[0083] During the rail unloading operation, the long steel rails on the first flatcar 2 are transported to the second flatcar 3, where the welding module 7 welds the long steel rails into even longer rails before unloading them to the ground, where the steel rails 25 are ground for grinding.

[0084] The first flatcar 2, the second flatcar 3, and the third flatcar 8 provide mounting references, running and braking, and carry and store various working equipment. They further include a frame 10, a coupler 11, and a bogie 12. The coupler 11 is used to couple with other vehicles to form a train. The tractor 1, the first flatcar 2, the third flatcar 8, and the second flatcar 3 are coupled together via the coupler 11.

[0085] As attached Figure 9 , 10 As shown in Figures 12 and 13, the second flatcar 3 and the third flatcar 8 are equipped with a number of lifting and conveying devices 13 spaced apart along the longitudinal direction (as shown by L in the attached figure). The lifting and conveying devices 13 are used to lift the rails 25 (control the height of the rails 25) and drive the rails 25 to move longitudinally, thereby realizing longitudinal conveying operations. The upper part of the lifting and conveying device 13 is equipped with a roller 24, which can also be self-powered for longitudinal conveying of the rails 25.

[0086] As attached Figure 9 As shown, the grinding module 9 is mounted on the third flatcar 8 and further integrates flaw detection equipment for flaw detection after rail grinding. (See attached image.) Figure 10 As shown, welding module 7 is mounted on the second flatcar 3 and further integrates normalizing and cooling equipment for completing the normalizing and cooling operations after rail welding. After welding module 7 completes the welding operation on rail 25, rail 25 undergoes normalizing and cooling treatment. After grinding module 9 completes the grinding operation on rail 25, rail 25 undergoes flaw detection treatment.

[0087] As attached Figure 3 and appendix Figure 14As shown, the third flat car 8 has a rail conveying function, and a pushing device 15 is arranged thereon, which drives the steel rail 25 to move through a traction device 16, and a fixed pulley 17 is arranged on the first flat car 2. When it is needed to convey the steel rail 25 to the first flat car 2 for storage, 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 it is needed to unload the steel rail 25 to the ground, 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. As a typical embodiment of the present application, the pushing device 15 can further specifically adopt a winch, which is used as a supplement of the jacking conveying device 13 to realize the traction and pushing of the steel rail 25. The pushing device 15 is provided with the traction device 16, which can further specifically adopt a steel wire rope. In the embodiment, the winch is only one structural implementation scheme, and is not limited to the implementation mode of the winch and the steel wire rope, and the conveying of the steel rail 25 can also be realized by other modes, such as the conveying of the steel rail 25 can be realized by arranging self-powered rail clamping wheels on the left and right sides of the steel rail 25. The fixed pulley 17 is used to cooperate with the steel wire rope and the winch to realize the pushing of the steel rail 25.

[0088] The first flat car 2 is provided with a plurality of jacking conveying devices 13 which are arranged in the longitudinal direction. The first flat car 2 is provided with a transverse pushing device 14 which is used to convey the steel rail 25 on the jacking conveying device 13 to a designated position on the first flat car 2 in the transverse direction (such as the direction shown by W in the drawing). The transverse pushing device 14 is arranged in pairs and is spaced apart in the longitudinal direction of the first flat car 2, and moves the steel rail 25 to the two sides of the first flat car 2 for storage. The transverse pushing device 14 and the jacking conveying device 13 realize the overall stable driving of the steel rail 25, and the transfer process is completely automated. On the basis of realizing the overall transfer and conveying of the steel rail, not only the space is saved, but also the quality of the steel rail 25 is ensured.

[0089] As shown in the drawing, the first flat car 2 is provided with a plurality of jacking conveying devices 13 which are arranged in the longitudinal direction. Figure 15 to the drawing, the first flat car 2 is provided with a plurality of jacking conveying devices 13 which are arranged in the longitudinal direction. Figure 20As shown, the first flat car 2 is provided with a rail storage platform 21 for storing rails 25, and the middle of the first flat car 2 is provided with an arch 22 for passing the rails 25 (as a conveying line of the rails 25), and the arch 22 is located on the upper part of the jacking conveying device 13. The rail storage platform 17 is a way of storing the rails 25, and when the rails 25 are stored in a horizontal moving manner, the rails 25 can be moved horizontally as a whole and stored on the rail storage platform 21. On both sides of the arch 22 in the transverse direction, the upper part of the rail storage platform 21 is provided with a walkway 20 for personnel to walk and place equipment, and the outer side of the walkway 20 is provided with a guardrail 23. The walkway 20 is used to form a passageway for personnel to walk above the rail storage platform 21, which can facilitate maintenance and movement on the flat car. The guardrail 23 is used to protect personnel when walking on the walkway. In this embodiment, the rail storage platform 21 with the arch 22 in the middle and above is matched with the longitudinally arranged jacking conveying device 13 and the transversely arranged pushing device 14, so that no stress concentration is generated in the conveying process of the rails 25, and it is especially suitable for combined construction with rail unloading and rail changing vehicles in a narrow space such as a subway or a tunnel, and is connected to the rail storage and rail conveying part to realize the simultaneous storage of the rails 25 on the rail conveying vehicle, and the function of personnel walking and placing the operation device. In this embodiment, the whole rail is moved horizontally, which saves the transition length required for rail deformation and removes the transition vehicle, thereby greatly reducing the length of the whole vehicle.

[0090] When loading the rails 25, the rails 25 are conveyed from one end of the first flat car 2 to the jacking conveying device 13 through the arch 22 in the middle, and the rails 25 are pushed to the designated position by the jacking conveying device 13. After reaching the designated position, the jacking conveying device 13 is lowered, and the rails 25 fall onto the transversely arranged pushing device 14, which is moved to the two sides of the first flat car 2 in the transverse direction, and the rails 25 are sequentially stored below the rail storage platform 21.

[0091] When unloading the rails 25, the transversely arranged pushing device 14 moves to push the stored rails 25 to the position below the arch 22 in the middle of the first flat car 2, the rails 25 are jacked up by the jacking conveying device 13, and the rails 25 are pushed away from the first flat car 2 in the longitudinal direction.

[0092] Before the rail conveying operation, when loading the rails 25, a plurality of first flat cars 2 are connected by the couplers 11, the rails 25 are conveyed from one end of the first flat car 2 to the jacking conveying device 13, and the rails 25 are pushed to the designated position by the jacking conveying device 13.

[0093] The jacking conveying device 13 is lowered, and the rails 25 fall onto the transversely arranged pushing device 14, which is moved to the designated position in the transverse direction, and the rails 25 are sequentially stored below the rail storage platform 21.

[0094] In the rail transport operation, the first flat car 2 is coupled with the tractor 1 to transport and transfer the steel rails 25.

[0095] After the rail transport operation, the transverse pushing device 14 moves laterally to push the stored steel rails 25 to the middle position, the lifting and conveying device 13 lifts the steel rails 25 and pushes the steel rails 25 longitudinally away from the first flat car 2.

[0096] Before the rail transport operation, the short steel rails are welded into long steel rails and conveyed to the first flat car 2 by the lifting and conveying device 13.

[0097] Before the rail unloading operation, the long steel rails are welded into longer steel rails after the steel rails 25 are conveyed away from the first flat car 2 by the lifting and conveying device 13.

[0098] As shown in FIGS. 1 to 4, the first flat car 2 is provided with a plurality of lifting and conveying devices 13 arranged longitudinally and spaced apart from each other, and a plurality of rail pushing devices 14 arranged longitudinally and spaced apart from each other. Figure 21 and 22 As shown in FIGS. 5 and 6, as another variation of the rail conveying and storing structure in the present embodiment, a plurality of groups of rail road beams 18 are arranged longitudinally and spaced apart from each other on the first flat car 2, and the rail road beams 18 are used for conveying and storing the steel rails 25. The rail road beams 18 can guide the steel rails 25 into different channels during the conveying of the steel rails 25 to be stored at different positions on the first flat car 2 or unloaded to different positions on the ground. A plurality of rail pushing devices 19 are arranged longitudinally and spaced apart from each other on the first flat car 2, and the rail pushing devices 19 are used for adjusting the conveying direction of the steel rails 25, adjusting the deformation of the steel rails 25, and guiding the steel rails 25 into different spaces on the rail road beams 18. After the steel rails 25 are welded from one side of the welding module 7, the rail pushing devices 19 determine the space position of the steel rails 25 on the rail road beams 18 when the steel rails 25 are placed on the rail road beams 18. When the steel rails 25 are unloaded, the steel rails 25 are conveyed from the rail road beams 18 to one side of the welding module 7, and the lateral position needs to be adjusted by the rail pushing devices 19. As a preferred specific embodiment of the present application, the first flat car 2 is provided with two layers of rail road beams 18, so that the steel rails 25 can be adjusted in the height direction in addition to the lateral position. In addition, the position adjustment of the steel rails 25 in the lateral and height directions can also be realized by a mechanical arm structure. In the rail beam conveying mode, the steel rails 25 are moved between the rail transport car and the rail welding car by the winch and the steel wire. Once the steel rails 25 enter the rail welding car, the pushing device provided on the rail welding car can clamp and convey the steel rails 25, and the winch is no longer effective or only plays an auxiliary role.

[0099] As a preferred embodiment of the present application, the distance between the welding module 7 and the grinding module 9 is the length of a standard rail 25, so that the previous joint is ground while the current joint of the rail 25 is welded. For example, the distance between the welding module 7 on the second flat car 3 and the grinding module 9 on the third flat car 8 is 25 m, which is used to process two welded joints while welding a 25 m standard short rail, and to grind the previous welded joint while welding the current joint, so that the welding and grinding of the rail 25 can be synchronized during the track laying, greatly improving the efficiency of the track laying operation. When welding short rails of other lengths, only the distance between the welding module 7 and the grinding module 9 needs to be adjusted. A plurality of first flat cars 1 are connected to form a storage space for the required length of the rail 25, and after connection, the loading and transportation of the long rail can be realized.

[0100] As a typical embodiment of the present application, the continuous rail welding operation system has two operation scenarios in actual use. One scenario is in the base, and the 25 m short rail on the track laying car 4 is transported to the welding module 7, and the welding module 7 welds the 25 m short rail into a 100 m long rail. Two parallel operation rail conveying lines can be arranged on the track laying car 4, the first conveying line is used for pre-welding treatment (such as rust removal), and the second conveying line leads to the welding module 7 for welding treatment. The rail 25 is lifted by the jacking conveying device 13 after the pre-treatment on the first conveying line is completed, and is transferred to the second conveying line for welding operation, so that the pre-treatment and welding treatment can be synchronized, thereby realizing synchronous welding and rust removal, and further improving the operation efficiency. The other scenario is at the construction site, and the long rail on the rail transport car (i.e. the first flat car 2) is transported to the rail welding car (i.e. the second flat car 3), and the 100 m long rail is welded into a long rail strip of several hundred meters (usually 500 m), and then unloaded to the ground by the rail unloading car 5 or unloaded to the ground by the rail changing car 6 (or directly changed into the rail holding groove). The rail 25 has three different forms according to different operation states, one is a short rail before track laying, the other is a long rail stored on the rail transport car after welding and grinding, and the third is a long rail strip unloaded to the ground after welding again.

[0101] Before the rail welding operation, two 25m short rails, after pre-welding treatment (e.g., rust removal), are longitudinally transported by the lifting and conveying device 14 to the rail welding car and grinding car. Welding is completed at welding module 7 by the welding equipment, followed by normalizing and cooling treatments. The resulting 50m rail is then longitudinally transported by the lifting and conveying device 14. When the first rail joint reaches the grinding module 9, the pre-treated third 25m short rail continues welding at welding module 7, resulting in a 75m rail. Simultaneously, grinding module 9 grinds and inspects the first joint. This process continues synchronously with welding and grinding until the desired length (e.g., 100m) of long rail is obtained. After obtaining the required length of long rail, the longitudinally set lifting and conveying device 13 continues to drive the rail 25 to move longitudinally. After reaching the rail transport vehicle, the lifting and conveying device 14 descends, and the long rail falls onto the transverse pushing device 14. The transverse pushing device 14 moves horizontally in the transverse direction, and stores the long rail on the rail storage platform 21 in sequence, completing the rail welding and grinding operation.

[0102] The continuous rail welding system described in Example 1 involves grinding the rails on the ground during unloading. The first window is used for welding and unloading of the rails 25, while the next window is used for grinding the welded joints of the rails (manually on the ground).

[0103] The continuous rail welding system described in Example 1 can complete welding and grinding operations simultaneously, and effectively connect with the pre-treatment before welding and the transportation after grinding. This provides a possibility for the development of an integrated construction vehicle for subway overhaul that combines rail transportation, welding, grinding, and rail replacement. After welding and grinding on the flatcar, the rails 25 are placed on the rail transport vehicle via the lifting and conveying device 13 and the lateral pushing device 14. This not only facilitates the transportation of the rails 25, but also has a high degree of mechanization, high work efficiency, and saves a lot of labor. The continuous rail welding system described in Example 1 eliminates the fastener disassembly car and the transition car, significantly reducing the overall length of the vehicle, saving space, and facilitating the storage of the entire vehicle on the subway storage line. At the same time, it has a high degree of automation, flexible formation, and is well adapted to the working conditions in subway tunnels and the short maintenance windows of subway rail replacement operations.

[0104] Example 2

[0105] As attached Figure 4 As shown, another embodiment of a continuous rail welding system specifically includes:

[0106] Tractor 1;

[0107] The first flatcar 2 is used for storing and transporting the steel rails 25;

[0108] And at least one second flatcar 3 equipped with welding module 7.

[0109] The first flat car 2 connected with the second flat car 3 is provided with the grinding module 9.

[0110] The traction vehicle 1, the first flat car 2 and the second flat car 3 are connected in sequence.

[0111] In the rail matching operation state, the short steel rails on the rail matching vehicle 4 are transported to the second flat car 3, and the short steel rails are welded into long steel rails by the welding module 7. The long steel rails are transported to the first flat car 2, and are stored on the first flat car 2 after the welding seam grinding treatment by the grinding module 9.

[0112] In the rail unloading operation state, the long steel rails on the first flat car 2 are transported to the second flat car 3, and are unloaded to the ground after being welded into longer long rails by the welding module 7, and the grinding operation of the steel rails 25 is performed on the ground.

[0113] The first flat car 2 and the second flat car 3 are provided with a plurality of jacking and conveying devices 13 arranged in the longitudinal direction, which are used for jacking and longitudinal conveying of the steel rails 25.

[0114] The second flat car 3 is provided with a pushing device 15, the pushing device 15 drives the steel rails 25 to move through a traction device 16, and the first flat car 2 is provided with a fixed pulley 17. When the steel rails 25 need to be transported to the first flat car 2 for storage, one end of the traction device 16 is connected with the steel rails 25 through the fixed pulley 17, and the other end is connected with the pushing device 15. When the steel rails 25 need to be unloaded to the ground, one end of the traction device 16 is connected with the steel rails 25, and the other end is connected with the pushing device 15.

[0115] The grinding module 9 is arranged on the rail vehicle, and is spaced apart from the welding module 7 by 25 m, so that the grinding can be synchronized with the welding and rust removal treatment, and the operation efficiency is greatly improved.

[0116] The more detailed technical solutions of the remaining parts can be specifically referred to the related description of Embodiment 1, which will not be repeated here.

[0117] Embodiment 3

[0118] In this embodiment, the rail vehicle (i.e. the first flat car 2) adopts a rolling way beam structure, and the grinding module 9 is placed on the rail matching vehicle 4 (there is no space to place the grinding module 9 on the rail vehicle adopting the rolling way beam structure). As shown in the accompanying drawings, the third continuous welded rail operation system embodiment specifically comprises: Figure 5

[0119] The traction vehicle 1;

[0120] The first flat car 2 for storing and conveying the steel rails 25;

[0121] And at least one second flat car 3 provided with the welding module 7. ​

[0122] The tractor 1, the first flat car 2 and the second flat car 3 are sequentially connected.

[0123] In the rail matching operation state, the short rails on the rail matching car 4 are transported to the second flat car 3, and the short rails are welded into long rails by the welding module 7, and the long rails are transported to the first flat car 2 for storage.

[0124] In the rail unloading operation state, the long rails on the first flat car 2 are transported to the second flat car 3, and the long rails are welded into longer rails by the welding module 7, and then unloaded to the ground, and the grinding operation of the rails 25 is performed on the ground.

[0125] A plurality of jacking conveying devices 13 are arranged on the first flat car 2 and the second flat car 3 in the longitudinal direction, and the jacking conveying devices 13 are used for jacking the rails 25 and driving the rails 25 to move in the longitudinal direction, so as to realize the longitudinal conveying operation.

[0126] The second flat car 3 is provided with a pushing device 15, the pushing device 15 drives the rails 25 to move through a traction device 16, and the first flat car 2 is provided with a fixed pulley 17. When the rails 25 need to be transported to the first flat car 2 for storage, one end of the traction device 16 is connected with the rails 25 through the fixed pulley 17, and the other end is connected with the pushing device 15. When the rails 25 need to be unloaded to the ground, one end of the traction device 16 is connected with the rails 25, and the other end is connected with the pushing device 15.

[0127] The continuous rail welding operation system further comprises a rail matching car 4 connected with the second flat car 3 in the rail matching operation state, and the rail matching car 4 is provided with a grinding module 9.

[0128] In the rail matching operation state, the short rails are transported from the rail matching car 4 to the second flat car 3, and the short rails are welded into long rails by the welding module 7. The long rails are reversely transported to the rail matching car 4, and the grinding module 9 performs the weld joint grinding treatment, and then the long rails are stored on the first flat car 2, and the welding module 7 performs the welding of the next rail joint.

[0129] The continuous rail welding operation system described in Embodiment 3 performs the rail grinding operation on the ground when the rails are unloaded, and the first skylight only performs the welding and unloading of the rails 25, and the next skylight performs the grinding operation of the rail welding joint (by manual operation on the ground).

[0130] The remaining part of the more detailed technical solutions can be specifically referred to the related description of Embodiment 1, which will not be repeated here.

[0131] Embodiment 4

[0132] The fourth embodiment of the continuous rail welding operation system is based on the first to third embodiments. The continuous rail welding operation system further comprises a rail unloading vehicle 5 connected to the second flat car 3 in the rail unloading state. After the welding module 7 welds the long rails into longer rail sections, the rail unloading vehicle 5 unloads the rails 25 to the track center or the track side. The grinding operation of the rails 25 is performed manually at the next window point. For example, as shown in an embodiment in FIG. 6, the continuous rail welding operation system comprises, in the rail unloading state, the tractor 1, the first flat car 2, the second flat car 3, and the rail unloading vehicle 5 connected in sequence. The welding module 7 is arranged on the second flat car 3. Figure 6

[0133] In this embodiment, the rail welding vehicle (i.e., the second flat car 3) only performs the welding of the rails 25. The normalizing treatment can be completed by the normalizing equipment on the rail welding vehicle or manually under the vehicle to improve the operation efficiency (the rail can be unloaded immediately after the welding treatment, and the welding of the next rail 25 can be performed). The grinding operation of the rails 25 is performed manually at the next window point.

[0134] If the integral conveying mode is adopted, the rails 25 are conveyed integrally by the jacking conveying device 13 and the transverse pushing device 14 during the rail unloading. If the conveying mode of the roller beam structure is adopted, the rails 25 are conveyed and the position is adjusted by the rail pushing device 19 in cooperation with the pushing device 15 and the traction device 16 during the rail unloading.

[0135] The more detailed technical solutions of the remaining parts can be specifically referred to the related descriptions of the first embodiment, which will not be described here.

[0136] Embodiment 5

[0137] The fifth embodiment of the continuous rail welding operation system is based on the first to third embodiments. The continuous rail welding operation system further comprises a rail changing vehicle 6 connected to the second flat car 3 in the rail unloading state. After the welding module 7 welds the long rails into longer rail sections, the rail changing vehicle 6 unloads the rails 25 to the track center or the track side or directly changes the rails 25 into the rail bearing groove. For example, as shown in an embodiment in FIG. 7, the continuous rail welding operation system comprises, in the rail unloading state, the tractor 1, the first flat car 2, the second flat car 3, and the rail changing vehicle 6 connected in sequence. The welding module 7 is arranged on the second flat car 3. Figure 7

[0138] The more detailed technical solutions of the remaining parts can be specifically referred to the related descriptions of the first embodiment, which will not be described here.

[0139] ​​In the description of the present application, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or 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 indirectly connected to the other element.

[0140] It should 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 the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0141] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple", "several" is two or more, unless otherwise explicitly specified.

[0142] It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present application are only used to cooperate with the content disclosed in the description, to be understood and read by those skilled in the art, and do not have technical significance, and any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0143] By implementing the technical solutions of the continuous rail welding operation system described in the embodiments of the present application, the following technical effects can be achieved:

[0144] (1) The continuous rail welding operation system described in the embodiments of the present application can simultaneously realize continuous long-time rail welding during rail distribution and rail unloading operation processes, has high mechanization degree, improves operation efficiency, saves a large amount of manual labor, and can well adapt to the characteristics of short sky period of metro rail replacement operation;

[0145] (2) The continuous rail welding operation system described in the embodiments of the present application effectively connects the pre-welding treatment and the post-grinding transportation, can realize synchronous construction of rail welding and grinding, and can place the rails on the flat car through the jacking conveying device and the transverse pushing device after the rails are welded and ground on the car, thereby providing the possibility of integrated construction of the whole car, rail welding, grinding and rail replacement;

[0146] (3) The continuous rail welding operation system described in the embodiments of the present application cancels the fastener removal car and the transition car, greatly reduces the length of the whole car, saves space, is flexible in marshalling, has high automation, is convenient for storage in the metro storage track, and is especially suitable for being connected with the rail storage and rail transportation part in the narrow construction environment of the metro and being combined with the rail removal and rail replacement construction vehicles for construction;

[0147] (4) The continuous rail welding operation system described in the embodiments of the present application adopts the rail storage frame with a central arch cooperating with the longitudinal jacking conveying device and the transverse pushing device, so that stress concentration is not generated in the conveying process of the rails, and a walkway is arranged for personnel walking and placing other equipment, thereby realizing the simultaneous storage of rails on the rail transportation flat car, the passing of personnel and the placement of operation devices;

[0148] (5) The continuous rail welding operation system described in the embodiments of the present application realizes the stable transfer and transportation of the whole rail through the jacking conveying device and the transverse pushing device, completely realizes automation in the transfer process, effectively guarantees the quality of the rails while saving space, and can realize rail welding, rail transportation, rail removal and rail replacement, and the operation mode is more flexible.

[0149] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to each other.

[0150] The above is only the preferred embodiments of the present application, and does not limit the present application in any form. Although the preferred embodiments of the present application are disclosed as above, they are not intended to limit the present application. Any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application, or modify equivalent embodiments, without departing from the spirit and technical solutions of the present application. Therefore, any simple modification, equivalent replacement, equivalent change and modification of the above embodiments according to the technical essence of the present application, which does not depart from the technical solutions of the present application, still belongs to the protection scope of the technical solutions of the present application.

Claims

1. A continuous rail welding operation system, characterized in that, include: The first flatcar (2) is used for storing and transporting rails (25); And at least one second flatcar (3) equipped with a welding module (7); The first flatcar (2) is connected to the second flatcar (3); In the rail matching operation state, the short rails are transported to the second flatcar (3), and the welding module (7) welds the short rails into long rails, which are then transported to the first flatcar (2) for storage. In the unloading operation state, the long steel rail on the first flatcar (2) is transported to the second flatcar (3), and the welding module (7) welds the long steel rail into a longer long rail before unloading it to the ground; The second flatcar (3) is provided with a number of lifting and conveying devices (13) spaced along the longitudinal direction. The lifting and conveying devices (13) are used to lift and convey the rails (25) longitudinally. The first flatcar (2) is provided with a plurality of lifting and conveying devices (13) spaced longitudinally, and the upper part of the lifting and conveying device (13) is provided with a roller (24); the first flatcar (2) is provided with a transverse pushing device (14), which is used to transport the rail (25) on the lifting and conveying device (13) transversely to a designated position on the first flatcar (2); The first flatcar (2) is provided with a rail storage platform (21) for storing rails (25). The first flatcar (2) is provided with an arch (22) for passing rails (25) in the middle of the longitudinal direction. The arch (22) is also located above the lifting and conveying device (13). On both sides of the arch (22) in the transverse direction, the upper part of the rail storage platform (21) is provided with a walkway (20) for personnel to walk and for placing equipment. The outer side of the walkway (20) is provided with a guardrail (23). The second flatcar (3) is equipped with a pushing device (15), which drives the rail (25) to move through the traction device (16). The first flatcar (2) is equipped with a fixed pulley (17). When the rail (25) needs to be transported to the first flatcar (2) for storage, one end of the traction device (16) is connected to the rail (25) through the fixed pulley (17), and the other end is connected to the pushing device (15). When the rail (25) needs to be unloaded to the ground, one end of the traction device (16) is connected to the rail (25), and the other end is connected to the pushing device (15).

2. The continuous rail welding system according to claim 1, characterized in that: The system also includes a track-aligning vehicle (4) that is connected to the second flatcar (3) in the track-aligning operation state, and the track-aligning vehicle (4) is equipped with a grinding module (9).

3. The continuous rail welding system according to claim 2, characterized in that: In the rail matching operation, the short rail is transported from the rail matching car (4) to the second flat car (3), and the welding module (7) welds the short rail into a long rail; the long rail is then transported in the opposite direction to the rail matching car (4), where the grinding module (9) grinds the weld seam and stores it on the first flat car (2), and the welding module (7) then welds the next rail (25) joint.

4. The continuous rail welding system according to claim 1, 2 or 3, characterized in that: Several of the first flatcars (2) are coupled together to form a storage space for rails (25) of the required length.

5. The continuous rail welding system according to claim 4, characterized in that: The system also includes a rail unloading car (5) that is connected to the second flatcar (3) in the rail unloading operation state. After the welding module (7) welds the long rail into a longer rail, the rail unloading car (5) unloads the rail (25) to the center of the track or the side of the track. The grinding operation of the rail (25) is carried out manually at the next track maintenance window.

6. The continuous rail welding system according to claim 4, characterized in that: The system also includes a rail-changing car (6) that is connected to the second flatcar (3) in the rail unloading operation state. After the welding module (7) welds the long rail into a longer rail, the rail (25) is unloaded to the center of the track or the side of the track by the rail-changing car (6); or the rail (25) is directly replaced into the rail-bearing groove by the rail-changing car (6).

7. The continuous rail welding system according to claim 1, 2, 3, 5 or 6, characterized in that: The distance between the welding module (7) and the grinding module (9) is the length of a standard rail (25), so that the previous joint is ground while the current joint of the rail (25) is being welded.

8. The continuous rail welding system according to claim 7, characterized in that: The welding module (7) also integrates normalizing equipment and cooling equipment to complete the normalizing and cooling operations after rail welding; the grinding module (9) also integrates flaw detection equipment to complete the flaw detection operation after rail grinding.

9. The continuous rail welding system according to claim 1, 2, 3, 5, 6 or 8, characterized in that: When loading rails (25), the rails (25) are transported from one end of the first flatcar (2) to the lifting conveyor (13) via the central arch (22). The lifting conveyor (13) pushes the rails (25) to the designated position. After reaching the designated position, the lifting conveyor (13) descends, causing the rails (25) to fall onto the transverse pushing device (14). The transverse pushing device (14) moves laterally to both sides of the first flatcar (2) and stores several rails (25) in sequence below the rail storage platform (21). When unloading rails (25), the transverse pushing device (14) moves laterally to push the stored rails (25) to the position below the central arch (22) of the first flatcar (2). The lifting conveyor (13) lifts the rails (25) and pushes them longitudinally away from the first flatcar (2).

10. The continuous rail welding system according to claim 9, characterized in that: The first flatcar (2) is provided with several sets of roller beams (18) spaced apart along the longitudinal direction. The roller beams (18) are used to transport and store the rails (25). The first flatcar (2) is provided with several rail-shifting devices (19) spaced apart along the longitudinal direction. The rail-shifting devices (19) are used to adjust the direction of movement of the rails (25) and guide the rails (25) into different spaces on the roller beams (18).

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