High-speed railway integrated track-changing train arrangement structure and track-changing method

Abstract

The present invention relates to the technical field of integrated rail-changing methods for railways, and in particular to an integrated rail-changing process for high-speed railways, including integrated rail-changing train arrangement steps and rail-changing process steps: the integrated rail-changing train arrangement steps for high-speed railways include: tractor + mobile rail-welding vehicle + tail vehicle for operation + power generation vehicle + on-board rail-welding vehicle + operation vehicle 2 + operation vehicle 1 + (200 / 300 / 400 / 500) m T11 long rail vehicle + safety vehicle + tractor; integrated rail-changing construction process, using the rail-changing train on site to meet the requirements of the high-speed railway rail-changing construction method, and to be applicable to the integrated operations of long rail transportation, unloading, welding, replacement, and collection for high-speed railway rail-changing. The purpose of the present invention is to provide an integrated rail-changing process for high-speed railways, and the technical solution provided by the present invention solves the technical problems of the current method of replacing rails in sections on high-speed railways, such as many blockade points, high safety risks, high construction costs, and low operating efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of railway track changing methods, and in particular to a high-speed railway integrated track changing train arrangement structure and a track changing method. Background Art

[0002] At present, the construction mode of replacing long rails includes multiple construction procedures such as pre-construction preparation, pre-unloading of long rails, replacement of long rails, recycling of old rails, and stress adjustment of rails.

[0003] S1. Preparatory work before construction: construction workload survey, manual ballast preparation of track bed, installation of sleepers, and pre-tightening of fasteners.

[0004] S2. Pre-unloading of long rails: At a construction window, use a long rail train to pre-unload the 500-meter long rails that need to be replaced to the construction site, take anti-expansion measures, and arrange inspections before replacement.

[0005] S3. Replacement of long rails: Before the rail replacement construction, the pre-unloaded 500m long rails are welded into long rails of the predetermined construction progress length using thermite welding technology or a mobile rail welding train; a construction skylight is used to manually replace the rails, adjust the stress, secure the old rails, and conduct anti-expansion inspections using a construction train.

[0006] S4. Recycling of old rails: Utilize a construction skylight and use a rail collection train to recycle old rails. Long rail vehicles or track vehicles collect rails, and the appearance of the track bed is tidied after the rails are collected.

[0007] The current construction mode of replacing long rails has the following technical problems:

[0008] 1. Construction skylight refers to the time when the line is idle and can be used for line maintenance. The current construction mode of replacing long rails requires multiple construction skylights, such as pre-unloading long rails, rail welding, replacing long rails, and recycling old rails, which affects the efficiency of high-speed rail transportation;

[0009] 2. Manual ballast pulling and long rail anti-expansion processes are required before and after construction. At the same time, manual regular inspections are required to ensure that the train running limits are not violated, and equipment and personnel are prepared to deal with emergencies, resulting in high construction costs;

[0010] 3. Pre-unloading long rails, long rail welding preparation, rail replacement construction and rail collection construction require their own construction trains, construction personnel and occupy different construction mileage sections. They need to match and coordinate plans and progress with each other, and the construction process is complicated;

[0011] 4. Long rails need to be welded from 100-meter fixed-length rails into 500-meter long rails at the rail welding base, and then transported to the construction site where the rails need to be replaced by a long rail car. The transportation is complicated, and the investment in building a fixed factory welding base is large. The long rail customization process is complicated, and it is necessary to pre-unload at least one long rail of the rail replacement progress unit in advance, and the construction involves a long mileage;

[0012] 5. The "offline welding" construction of welding 500m long rails into predetermined lengths on site requires additional supporting construction plans, construction personnel and supporting construction trains to complete, and the mileage and length must be matched with the construction progress.

[0013] 6. Each of the above steps must apply for a separate blocking point for parallel operation. Multiple steps require multiple blocking points at the same time. This will result in a construction range with many points and long lines that far exceeds the 2-kilometer track replacement length, and the longest is 10 kilometers. The safety risk increases exponentially due to the increase in the safety control scope, and safety control is very difficult. Summary of the invention

[0014] The purpose of the present invention is to provide a high-speed railway integrated rail-changing train arrangement structure and a rail-changing method. The technical solution provided by the present invention solves the technical problems of the current rail-changing method, such as many blocking points, great safety risks, high construction costs and low operating efficiency.

[0015] In order to solve the above technical problems, the present invention provides, on one hand, a high-speed railway integrated track-changing train arrangement structure, including a train arrangement structure using a T11 long-track vehicle as a carrier; the train arrangement structure includes:

[0016] The operation base train includes a first tractor, a long rail car, a welding rail car, and a power generation car in sequence. The long rail car is used to place the long rails welded on the welding rail car.

[0017] Rail welding operation train: includes an operation base train and a second operation vehicle and a rail vehicle arranged at the end of the operation base train, and is used to weld the short rails loaded on the rail vehicle into long rails and place them on the long rail vehicle;

[0018] Construction operation train: includes an operation base train and an operation tail car arranged at the end of the operation base train; a mobile rail welding car is arranged on the operation tail car to complete the dismantling of old rails and the installation of long rails.

[0019] Preferably, in the operation base train, a safety car is arranged between the long rail car and the traction car, a first operation car is arranged between the rail welding car and the long rail car; and a power generation car is arranged at the end of the rail welding car.

[0020] Preferably, it also includes a transport operation train, which includes an operation base train and an operation tail car and a second traction car arranged at the end of the operation base train.

[0021] Preferably, the rail car in the rail welding operation train is a rail car of a steel plant.

[0022] Preferably, two track-changing trolleys are loaded in the tail car of the construction train; the track-changing trolleys are arranged at the end of the tail car during the track-changing construction.

[0023] Preferably, the front track-changing trolley runs on the unremoved part of the old rail and drags the unlaid long rail; the rear track-changing trolley runs on the laid part of the long rail and transports the removed old rail.

[0024] Based on the above-mentioned high-speed railway integrated track-changing train arrangement structure, the present invention further provides a high-speed railway integrated track-changing method, comprising:

[0025] S100, the rail car loads and transports the rails produced by the steel plant to the construction section, and is arranged with the second work car in the work base train on the construction section to form a rail welding work train; the rail welding car of the rail welding work train welds the rails into unit long rails and loads them longitudinally onto the long rail car; after the welding of all unit long rails is completed, the rail car is disassembled from the second work car and returns to the steel plant;

[0026] S200, arranging the tail car, the mobile rail welding car and the second traction car in sequence at the operation base train to form a construction operation train, and transporting the operation base train carrying the long rail to the construction starting point;

[0027] S300, the second tractor, the mobile rail welding vehicle and the tail vehicle are disassembled and move backward; the rail-changing trolley loaded on the tail vehicle is arranged to the end of the tail vehicle; the rail-changing trolley

[0028] S400, the front rail-changing trolley runs on the unremoved portion of the old rail and drags the unlaid long rail; the rear rail-changing trolley runs on the laid portion of the long rail and transports the removed old rail;

[0029] S500, the end of the unlaid long rail is dragged to the rail welding vehicle, the construction train is paused, and the long rail is seamlessly welded to the head end of another long rail on the rail welding vehicle;

[0030] S600, repeating steps S400-S500 until all the long rails on the long rail vehicle fall into the old rail positions.

[0031] Preferably, in step S100, welding the rails into unit long rails comprises the following steps:

[0032] S101, the hoist of the second working vehicle drags the rail from the rail vehicle, and the rail passes through the power generation vehicle, the rail welding vehicle, the first working vehicle, and the long rail vehicle in sequence until the end of the rail reaches the rail welding vehicle;

[0033] S102, using the winch of the second working vehicle to drag another rail from the rail vehicle, and when the head end of the other rail enters the rail welding vehicle, the other rail is welded with the previous rail in step S101 in the rail welding vehicle;

[0034] S103, after the welding is completed, the rails are continuously transported to the long rail car. When the welded rails reach the length of a single storage unit limited by the long rail car, the welded rails constitute a unit long rail bar. The long rail bar is pushed into the grooves on both sides of the car body using the rail pushing device of the long rail car.

[0035] S104, repeat steps S101 to S103 until the welding and transportation of all unit long rails are completed, and after the long rail car enters the slot, the rail car returns to the steel plant.

[0036] Preferably, in step S300, before the construction train runs to the construction starting point, all rails in the construction area are removed except for safety fasteners.

[0037] Preferably, in step S400, it specifically includes:

[0038] S401, placing the front rail-changing trolley in front of the opening at the construction starting point, and using the conveying device on the first working vehicle to insert the long rail into the front rail-changing trolley;

[0039] S402, using a gantry rail lifting machine to lift the old rail behind the front rail-changing trolley, and dropping the long rail into the position where the old rail is lifted;

[0040] S403, insert the old rail into the rear rail-changing trolley at the opening, withdraw the door frame rail hanging machine, push and change the positions of the two rail-changing trolleys, and connect them to the tail car of the construction train in sequence using connecting rods;

[0041] S404, the construction train moves from the construction starting point to the end point, and two track-changing trolleys follow it. The old rail is placed in the middle of the track by the track-changing trolley behind it;

[0042] S405: The old rails are oxygen-cut and dismantled in 500-meter sections and then connected with splints.

[0043] Preferably, during the first seamless welding of the two long rails in step S500, a mobile rail welding vehicle is used to weld the starting point of the long rail to the unremoved old rail, and locking fasteners are installed on the corresponding areas.

[0044] Preferably, in step S600, the construction train continues to move toward the end point, and fasteners are installed and locked in the empty area.

[0045] Preferably, in step S600, until all the long rails on the long rail vehicle fall into the old rail position; when the construction train runs in the reverse direction from the end point to the starting point, it also includes:

[0046] S701, the old rail located in the middle of the line track falls into the lifting slides of the front rail-changing trolley and the rear rail-changing trolley in turn, and enters the tail car of the operation;

[0047] S702, the old rail passes through the tail car, power generation car, rail welding car and the first working car in sequence, and is retrieved to the long rail car through the middle channel. At the same time, the old rail is put into the groove by the automatic rail splitting device, and the long rail and the old rail are fixed and locked by a mechanical device at the end of the rail replacement;

[0048] S703, when the old rail reaches the storage limit length of the long rail vehicle unit rail, the construction train is suspended, the old rail is moved to both sides of the vehicle body on the long rail vehicle, the rail clamp is removed, and the shuttle head is installed;

[0049] S704, the construction train continues to move, and steps S701 to S703 are repeated until all the old rails are slotted into place on the T11 long rail car, and the construction train exits the rail replacement area and completes the remaining rail fastener installation and fastening work;

[0050] S705. The construction train is coupled with the mobile rail welding vehicle and tractor and exits the construction section.

[0051] Preferably, in step S100, flash welding is used to synchronously complete seamless welding of two rails.

[0052] Preferably, in step S400, the step of removing the old rail from the track includes: removing the fasteners fixing the old rail, and setting the retained fasteners on the old rail of the construction safety road by retaining a set of fasteners every certain number of sleepers.

[0053] Preferably, a dismantling station is provided on the tail car of the construction train, and before the track is replaced, the retaining fasteners are used to release the clamping function of the old rails.

[0054] Preferably, in steps S400-S500, the long rails are transported from the long rail vehicle through passages on both sides of the first working vehicle, the rail welding vehicle, the power generation vehicle, and the working tail vehicle in turn to the ground; in steps S701-S704, the old long rails are transported through the middle passages of the working tail vehicle, the power generation vehicle, the rail welding vehicle, and the first working vehicle in turn to enter the long rail vehicle and fall into position in the slot.

[0055] Preferably, the welding machines of the rail welding vehicle are arranged as two integrated welding and normalizing machines.

[0056] Compared with the prior art, the present invention uses the operating base train formed by the arrangement of the power generation car, the welding rail car, the long rail car and the traction car as the basic train set, and respectively combines the rail car and the operating tail car to form a welding rail operating train that can complete seamless welding online and a construction operating train that completes rail replacement, replacing the traditional offline welding operation, and solving the problem of insufficient transportation conditions for the fixed factory welding long rail strip method, so that the new long rail can be laid directly from the long rail car without falling to the ground, eliminating the operation processes of pulling ballast, pre-unloading new long rails, and preventing expansion, shortening the operation time, effectively reducing the safety pressure and cost of pre-unloading new long rails, pulling ballast, and preventing expansion, alleviating the contradiction between transportation and construction, and realizing the organization of integrated flow operations of transportation, unloading, welding, replacement, and rail collection within the same blockade point, which greatly saves the blockade points required for construction, saves transportation costs, reduces the occupation of transportation resources, effectively reduces the dependence on manpower operations, and reduces the influence of human factors on rail replacement and welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0058] Figure 1 This is a schematic diagram of a train structure of an operation base according to an embodiment of the present application;

[0059] Figure 2 This is a schematic diagram of the second structure of the operating base train in the embodiment of the present application;

[0060] Figure 3 This is a partial structural schematic diagram of a rail welding operation train according to an embodiment of the present application;

[0061] Figure 4 This is a schematic diagram of the partial structure of the construction work train according to an embodiment of the present application. DETAILED DESCRIPTION

[0062] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these practical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0063] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0064] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0065] Example 1

[0066] The high-speed rail integrated track changing method provided in an embodiment of the present invention includes a train arrangement step and a track changing operation step. It should be noted that the train arrangement step is a method for arranging the working vehicles used in the entire track changing operation, and the track changing operation step runs through the entire track changing operation. The two steps are intertwined and interconnected, and are not two independent operation steps.

[0067] In the train arrangement step, the working vehicles are first classified according to their uses in the track changing operation. In order to realize the integrated track changing of high-speed rail, it is necessary to complete the online seamless welding of the 100m steel rails produced by the steel plant, and to complete the rail unloading and rail loading operations at the same time. To this end, this embodiment is provided with working vehicles that can be freely arranged to realize the above functions, first including the working base train as the working base, and secondly, the welding rail working train and the construction working train that can complete the splicing and welding and track changing on the basis of the working base train. The above-mentioned arranged trains all run on the old tracks of the construction safety road.

[0068] To this end, the train marshaling steps include the following marshaling steps:

[0069] like Figure 1-2 As shown, the operation base marshaling steps are as follows: a group of operation base trains are arranged, which include a first tractor 10, a long rail car 30 and a rail welding car 50 in sequence, and the long rail car 30 is used to place the long rails that have been welded on the rail welding car 50;

[0070] like Figure 3 As shown, the rail welding operation marshaling steps are as follows: arranging a group of rail welding operation trains, including an operation base train and a rail car 80 arranged at the end of the operation base train, and a connected second operation car 70, which is used to weld the short rails loaded on the rail car 80 into long rails and place them on the long rail car 30;

[0071] like Figure 4 As shown, the construction operation marshaling steps are as follows: a group of construction operation trains are arranged, including an operation base train and an operation tail car 90 arranged at the end of the operation base train. A mobile rail welding car can be arranged at the operation tail car 90 to complete the disassembly of the old rails and the installation of the long rails.

[0072] Among them, in the operation base train, it is necessary to complete the seamless welding of rails into unit long rails, the loading and transportation of unit long rails, etc. For this purpose, the following operation vehicles need to be added to the operation base train:

[0073] Since the rail welding car 50 consumes a large amount of electric energy, and in order to provide electric energy to the tractor, a power generation car 60 is arranged at the end of the rail welding car 50; the long rail car 30 is of fixed length, and its carrying length can be 200m / 300m / 400m / 500m, which is used to place the unit long rails that have completed seamless welding. It can also use multi-section T11 long rail cars 30 according to construction requirements. The optimal length of the conveyed rails is 500 meters, and the maximum length can be determined according to technical parameters such as traction tonnage and track; between the rail welding car 50 and the long rail car 30, in order to facilitate the construction work of the construction personnel, there is also an operation car 40, which can be used to place construction equipment and provide a work site; in addition, between the long rail car 30 and the tractor, there is also a safety car 20 to ensure the vehicle and personal safety of the entire construction process.

[0074] To this end, the operation base train has a complete arrangement structure of: the first tractor 10, the safety car 20, the long rail car 30, the first operation car 40, the welding rail car 50 and the power generation car 60. The first tractor 10 provides power to drive the safety car 20, the long rail car 30, the first operation car 40, the welding rail car 50 and the power generation car 60 forward.

[0075] In the rail welding operation train, the rail car 80 is a rail car 80 of the steel plant. At this time, the rails carried on the rail car 80 are short rails, which need to be further welded into long rails. When welding rails is needed, the rail car 80 carries the rails from the steel plant to the operation base train, and the rail car 80 is arranged together with the second operation car 70 to form a rail welding operation train; after the rail welding operation is completed, the rail car 80 and the second operation car 70 are disassembled and returned to the steel plant.

[0076] Before construction work, it is necessary to transport the work base train loaded with long rails to the construction section. Since the work base train loaded with long rails requires higher driving force, before the construction work train is transported, a mobile rail welding car and a second traction car are arranged at the end of the work tail car 90, and together with the first traction car 10 at the front end of the work base train, the long rails are transported to the construction section. After arrival, the second traction car and the mobile rail welding car at the end are disassembled and retreat.

[0077] During construction work, two track-changing trolleys 91 are arranged at the end of the tail car 90 of the construction train; when changing tracks, the front track-changing trolley 91 runs on the unremoved part of the old track and drags the long unlaid rail; the rear track-changing trolley 91 runs on the laid part of the long rail and transports the removed old rail.

[0078] This embodiment uses the existing T11 long rail vehicle 30 as a carrier, optimizes the combination of the rail welding vehicle 50 and the power generation vehicle 60, adds a second traction vehicle as needed, and realizes a construction vehicle train that integrates the functions of long rail transportation, unloading, welding, replacement, and collection according to modular and integrated functional modules.

[0079] The modular setup is described below:

[0080] 1. Combining two on-board flash welders on the rail welding vehicle 50 can simultaneously weld and normalize two rails, and complete the on-board welding in 35 minutes;

[0081] 2. Use ECP train synchronous braking technology to solve the problem of synchronous braking on long and steep slopes;

[0082] 3. Combine the vehicle-mounted high-power generator to provide a stable power supply for the vehicle-mounted welding machine and transform it into a power generation vehicle 60;

[0083] 4. Combine high-power power batteries to solve the problem of clean energy supply for long tunnel welding machines, and integrate them into a power generation vehicle 60;

[0084] 5. The original track-changing trolleys were remodeled, and two upper and lower rail entry and exit passages were added to each of the two trolleys. Electric horizontal rail shifting devices were added to upgrade them to rail collection and unloading trolleys, which were stored in the tail car 90.

[0085] The whole vehicle is designed to achieve a compact, regular, orderly, clear, reasonable and compliant overall layout of the long-track vehicle 30, which significantly reflects the advantages of automated, less-manned and intelligent track-changing equipment.

[0086] Example 2

[0087] Based on the above-mentioned operation base train, the arranged rail welding operation train and construction operation train can properly complete the seamless line rail replacement operation under the premise of ensuring its safe construction. The embodiment of the present invention also provides a high-speed railway integrated rail replacement method, which specifically includes the following steps:

[0088] S100, the rail car 80 loads and transports the rails produced by the steel plant to the construction section, and is arranged with the welding rail car 50 and the second work car 70 in the work base train on the construction section to form a rail welding work train; the welding rail car 50 of the rail welding work train welds the rails into unit long rails and loads them longitudinally onto the long rail car 30; after completing the welding of all unit long rails, the rail car 80 and the second work car 70 are disassembled and returned to the steel plant.

[0089] In this step, the rail car 80 is a steel mill rail car 80, which loads and transports the rails produced by the steel mill to the construction section, and is arranged with the operation base train on the construction section to form a rail welding operation train; the rails are conventional 100m rails produced by the steel mill. Flash welding is used to synchronously complete the seamless welding of the two rails.

[0090] The rail welding vehicle 50 welds the rails into unit long rails, which specifically includes the following steps:

[0091] S101, use the winch of the second working vehicle 70 to drag the rail from the rail vehicle 80, install a shuttle head at the head of the rail, and the rail passes through the power generation vehicle 60, the rail welding vehicle 50, the first working vehicle 40 and the long rail vehicle 30 in sequence until the end of the rail reaches the rail welding vehicle 50; when the rail passes through the second working vehicle 70, a rail feeding machine is used to transport the rail;

[0092] S102, using the winch of the second working vehicle 70 to drag another rail from the rail vehicle 80, when the head end of the other rail enters the rail welding vehicle 50, the welding is completed with the previous rail in step S101 in the rail welding vehicle 50;

[0093] S103, after the welding is completed, the rails are continuously transported to the long rail car 30. When the welded rails reach the length of a single storage unit defined by the long rail car 30, the welded rails constitute a unit long rail. The rail shifting device of the long rail car 30 is used to shift the unit long rails to the grooves on both sides of the car body.

[0094] S104, repeat steps S101 to S103 until the welding and transportation of all unit long rails are completed, and after the long rail car 30 enters the slot, the rail car 80 returns to the steel plant.

[0095] In this step, a nearby station is selected, and a rail welding train occupies the track to establish a temporary rail welding base. When the rails are loaded onto the long rail car 30, they can be welded into unit long rails by the rail welding car 50 using seamless welding, and then loaded longitudinally onto the long rail car 30 and locked. The above-mentioned unit long rails can be welded into 200m / 300m / 400m / 500m according to construction requirements. During the welding process, a newly designed intelligent welding machine can be used, and the welding machine is arranged as two welding and normalizing integrated machines. The on-board welding operation can be completed quickly within 35 minutes.

[0096] S200, arranging the tail car, the mobile rail welding car and the second traction car at the operation base train to form a transport operation train, and transporting the operation base train carrying the long rails to the construction starting point.

[0097] When the train at the operation base runs to the starting point, the alignment must comply with <0-900mm.

[0098] S300, a mobile rail welding vehicle is arranged at the end of the operation tail vehicle 90 to form a construction operation train; during operation, the operation tail vehicle and the mobile rail welding vehicle are separated and retreat; the rail changing trolley 91 loaded on the operation tail vehicle 90 is arranged to the end of the operation tail vehicle 90.

[0099] The construction train stops after traveling 20 meters past the construction starting point, and unloads two track-changing trolleys 91 from the tail car. A dismantling station is also provided on the tail car 90 of the construction train. Before the track is changed, the dismantling station releases the buckling function of the retained fasteners on the old rails. During the dismantling operation, the dismantling station can timely release the buckling of the retained fasteners on the old rails by using the driving power of the tail car 90, thereby ensuring the smooth track change of the tail car 90 and the continuous track change operation.

[0100] S400, the front rail-changing trolley 91 runs on the unremoved part of the old rail and drags the unlaid long rail; the rear rail-changing trolley 91 runs on the laid part of the long rail and transports the removed old rail;

[0101] In step S400, it specifically includes:

[0102] S401, placing the front rail-changing trolley 91 in front of the opening of the construction starting point, and using the conveying device on the first working vehicle 40 to insert the long rail into the front rail-changing trolley 91;

[0103] S402, using a gantry rail lifting machine to lift the old rail behind the front rail-changing trolley 91, and drop the long rail into the position where the old rail is lifted;

[0104] S403, insert the old rail into the rear rail-changing trolley 91 at the opening, withdraw the door frame rail hanging machine, push and change the positions of the two rail-changing trolleys 91, and connect them to the tail car 90 of the construction train in sequence using connecting rods;

[0105] S404, the construction train moves from the construction starting point to the end point, and two rail-changing trolleys 91 follow and move forward, and the old rail is placed in the middle of the track by the rear rail-changing trolleys 91;

[0106] S405: The old rails are oxygen-cut and dismantled in 500-meter sections and then connected with splints.

[0107] In step S400, the step of removing the old rails on the track includes: removing the fasteners fixing the old rails, and setting the retained fasteners on the old rails of the construction safety road by keeping a set of fasteners every certain number of sleepers. In this step, since the fasteners of the old rails fasten the old rails to the sleepers, the fasteners must be removed before unloading the rails, but removing the fasteners will cause the old rails to shift, causing the old rails on which the long rail car is running to overturn, which is not conducive to the construction of the construction train. Therefore, by loosening 8 sets of fasteners and keeping 1 set, the difficult sections can be reinforced or supplemented with other reinforcement settings, which can ensure that the old rails are effectively positioned and ensure the safety of the operation.

[0108] S500, the end of the unlaid long rail is dragged to the rail welding vehicle 50, the construction train is paused, and the long rail is seamlessly welded with the head end of another long rail on the rail welding vehicle 50.

[0109] During the seamless welding of the two long rails, a mobile rail welding vehicle is used to weld the starting point of the long rail to the old rail that has not been removed, and locking fasteners are installed on the corresponding areas.

[0110] S600, repeat steps S400-S500 until all the long rails on the long rail vehicle 30 fall into the old rail position. At the same time, the construction train continues to move toward the end point, and the free area is installed and locked.

[0111] In steps S400 - S500 , the long rail reaches the ground using passages on both sides of the working vehicle 40 , the rail welding vehicle 50 , the power generation vehicle 60 , and the working tail vehicle 90 .

[0112] Through the above steps, all old rails can be removed and long rails can be laid. After the laying is completed, two more steps need to be completed. The first is to weld the head end of the newly laid long rail to the end of the old rail that does not need to be removed, and the second is for the construction train to run in reverse to retrieve the removed old rails.

[0113] To this end, after completing step S600, the construction train runs in the reverse direction from the end point to the starting point, and further includes the following steps:

[0114] S701, use a rail hoist to lift the old rail in the middle of the track, install a shuttle head at the head of the old rail, and when the construction train runs in the reverse direction from the end point to the starting point, the old rail in the middle of the track falls into the lifting slides of the front rail-changing trolley 91 and the rear rail-changing trolley 91 in turn, and enters the tail car 90;

[0115] S702, the old rail passes through the tail car 90, the power generation car 60, the rail welding car 50, and the first working car 40 in sequence, and is retrieved to the long rail car 30 through the middle passage. At the same time, the old rail is put into the groove in place by the automatic rail splitting device on the long rail car 30. At the end of the rail replacement, the long rail and the old rail are fixed and locked by a mechanical device;

[0116] S703, when the old rail reaches the storage limit length of the long rail car 30 unit rail, the construction train is suspended, the old rail is moved to both sides of the car body on the long rail car 30, and the rail clamp is removed and the shuttle head is installed;

[0117] S704, the construction train continues to move in the reverse direction, repeating steps S701 to S703 until all the old rails are slotted into place on the long rail vehicle 30, and the construction train exits the rail replacement area and completes the remaining rail fastener installation and fastening work;

[0118] S705. The construction train is coupled with the mobile rail welding vehicle and tractor and exits the construction section.

[0119] In the correction S701-S704, the old long rail uses the middle channel of the working tail car 90, the welding rail car 50, the power generation car 60, and the working car 40 to enter the long rail car 30 and fall into the groove.

[0120] During the process of retrieving the old rails, the rail-changing trolley will also run on the new long rails. An additional material collection trolley can be added to collect the old materials and tools generated by the rail changing and load them onto the trolley. The rail-changing trolley can collect the old rails unloaded onto the ballast shoulder or the center of the track and load them onto the trolley, so that the tail car can collect the materials and rails in time and evacuate the construction site after completing the rail changing, effectively improving work efficiency, shortening construction time, and completing the rail changing process in one go, achieving an integrated mode of work completion and material clearance.

[0121] On long and steep slopes, the braking process of the operating train is achieved using low constant speed control technology and ECP train synchronous braking technology; in long tunnel sections, the power supply of the operating train can be achieved using overhead power supply technology or batteries to meet the power supply needs.

[0122] Compared with the prior art, the present invention uses the operating base train formed by the rail welding car, T11 long rail car and traction car as the basic train set, and respectively combines the second operating car, the rail car and the operating tail car to form a rail welding operating train that can complete seamless welding online and a construction operating train that completes rail replacement, replacing the traditional offline welding operation, so that the new long rail can be laid directly from the T11 long rail car without falling to the ground, eliminating the operation processes of pulling ballast, pre-unloading new long rails, and preventing expansion, shortening the operation time, effectively reducing the safety pressure and cost of pre-unloading new long rails, pulling ballast, and preventing expansion, alleviating the contradiction between transportation and construction, and realizing the integrated flow operation of unloading, welding, replacing, and collecting rails within the same blocking point, greatly saving the blocking points required for construction, effectively reducing the dependence on manpower operations, and reducing the influence of human factors on rail replacement and welding.

[0123] The integrated track replacement construction mode of the embodiment of the present invention, the two core technologies of "unloading instead of replacing" and "on-board welding", only use one train to realize the "work completed and materials clean" construction mode of integrated transportation, unloading, replacement, welding and collection at the construction site, reducing the construction skylight and improving the efficiency by 67%; reducing the work of manual ballast pulling, long rail anti-expansion process and daily manual inspection, emergency preparation and other work, reducing costs; simplifying the construction process, so that the pre-unloading of long rails, offline welding, rail collection and track replacement construction that must occupy separate skylights and construction mileage are integrated, greatly reducing the difficulty of construction management; preparing long rails at the construction site, reducing the transportation of long rails at the welding rail base, reducing transportation impact and freight, and avoiding the fixed investment of the welding rail factory that cannot transport 500m long rails in such areas of Hainan Province.

[0124] The integrated welding construction mode of the embodiment of the present invention is combined with the vehicle marshaling mode, and the length of the long rail unit section can be customized according to the construction, which increases the flexibility of construction; it realizes the advantages of automated, less-manned, and intelligent rail-changing equipment. The use of rail-collecting and changing trolleys reduces the number of personnel by 56%, and the use of automatic rust removal machines reduces the number of personnel by 83%; it greatly reduces the mileage occupied during construction by 50%.

[0125] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A high-speed railway integrated track-changing method with a high-speed railway integrated track-changing train arrangement structure, characterized in that: The high-speed railway integrated track-changing train arrangement structure includes a train arrangement structure using the T11 long-track vehicle as a carrier; The train arrangement structure comprises: The operation base train includes a first tractor, a long rail car, a welding rail car, and a power generation car in sequence. The long rail car is used to place the long rails welded on the welding rail car. Rail welding operation train: includes an operation base train and a second operation vehicle and a rail vehicle arranged at the end of the operation base train, and is used to weld the short rails loaded on the rail vehicle into long rails and place them on the long rail vehicle; Construction operation train: including an operation base train and an operation tail car arranged at the end of the operation base train; a mobile rail welding car is arranged on the operation tail car to complete the removal of old rails and the installation of long rails; In the operation base train, a safety car is arranged between the long rail car and the traction car, a first operation car is arranged between the welding rail car and the long rail car; and a power generation car is arranged at the end of the welding rail car; Also included is a transport operation train, the transport operation train including an operation base train and a second tractor arranged at the end of the operation base train; The rail cars in the rail welding operation train are rail cars of a steel plant; Two track-changing trolleys are loaded in the tail car of the construction operation train; the track-changing trolleys are arranged at the end of the tail car during the track-changing construction; The track changing method comprises the following steps: S100, the rail car loads the rails produced by the steel plant and transports them to the construction section, and is arranged with the rail welding car in the operation base train on the construction section to form a rail welding operation train; the rail welding car of the rail welding operation train welds the rails into unit long rails and loads them longitudinally onto the long rail car; after the welding of all unit long rails is completed, the rail car and the rail welding car are disassembled and returned to the steel plant; S200, arranging the tail car, the mobile rail welding car and the second traction car in sequence at the operation base train to form a construction operation train, and transporting the operation base train carrying the long rail to the construction starting point; S300, the second tractor, the mobile rail welding vehicle and the tail vehicle are disassembled and retreated; the rail-changing trolley loaded on the tail vehicle is arranged to the end of the tail vehicle; S400, the front rail-changing trolley runs on the unremoved portion of the old rail and drags the unlaid long rail; the rear rail-changing trolley runs on the laid portion of the long rail and transports the removed old rail; S500, the end of the unlaid long rail is dragged to the rail welding vehicle, the construction train is paused, and the long rail is seamlessly welded to the head end of another long rail on the rail welding vehicle; S600, repeating steps S400-S500 until all the long rails on the long rail vehicle fall into the old rail positions.

2. The high-speed railway integrated track-changing method of the high-speed railway integrated track-changing train arrangement structure according to claim 1, characterized in that: The track-changing trolley in front runs on the unremoved part of the old rail and drags the unlaid long rail; the track-changing trolley in the back runs on the laid part of the long rail and transports the removed old rail.

3. The high-speed railway integrated track-changing method of the high-speed railway integrated track-changing train arrangement structure according to claim 1, characterized in that: In step S100, the rails are welded into unit long rails, including the following steps: S101, the hoist of the second working vehicle drags the rail from the rail vehicle, and the rail passes through the power generation vehicle, the rail welding vehicle, the first working vehicle, and the long rail vehicle in sequence until the end of the rail reaches the rail welding vehicle; S102, using the winch of the second working vehicle to drag another rail from the rail vehicle, and when the head end of the other rail enters the rail welding vehicle, the other rail is welded with the previous rail in step S101 in the rail welding vehicle; S103, after the welding is completed, the rails are continuously transported to the long rail car. When the welded rails reach the length of a single storage unit limited by the long rail car, the welded rails constitute a unit long rail bar. The long rail bar is pushed into the grooves on both sides of the car body using the rail pushing device of the long rail car. S104, repeat steps S101 to S103 until the welding and transportation of all unit long rails are completed, and after the long rail car enters the slot, the rail car returns to the steel plant.

4. The high-speed railway integrated track-changing method of the high-speed railway integrated track-changing train arrangement structure according to claim 1, characterized in that: In step S300, before the construction train runs to the construction starting point, all rails in the construction area are removed except for the safety fasteners.

5. The high-speed railway integrated track-changing method of the high-speed railway integrated track-changing train arrangement structure according to claim 1, characterized in that: In step S400, it specifically includes: S401, placing the front rail-changing trolley in front of the opening at the construction starting point, and using the conveying device on the first working vehicle to insert the long rail into the front rail-changing trolley; S402, using a gantry rail lifting machine to lift the old rail behind the front rail-changing trolley, and dropping the long rail into the position where the old rail is lifted; S403, insert the old rail into the rear rail-changing trolley at the opening, withdraw the door frame rail hanging machine, push and change the positions of the two rail-changing trolleys, and connect them to the tail car of the construction train in sequence using connecting rods; S404, the construction train moves from the construction starting point to the end point, and two track-changing trolleys follow it. The old rail is placed in the middle of the track by the track-changing trolley behind it; S405: The old rails are oxygen-cut and dismantled in 500-meter sections and then connected with splints.

6. The high-speed railway integrated track-changing method of the high-speed railway integrated track-changing train arrangement structure according to claim 1, characterized in that: During the first seamless welding of the two long rails in step S500, a mobile rail welding vehicle is used to weld the starting point of the long rail to the old rail that has not been removed, and locking fasteners are installed on the corresponding areas.

7. The high-speed railway integrated track-changing method of the high-speed railway integrated track-changing train arrangement structure according to claim 1, characterized in that: In step S600, the construction train continues to move toward the end point, and fasteners are installed and locked in the empty area.

8. The high-speed railway integrated track-changing method of the high-speed railway integrated track-changing train arrangement structure according to claim 1, characterized in that: In step S600, until all the long rails on the long rail vehicle fall into the old rail position; When the construction train runs in the reverse direction from the end point to the starting point, it also includes: S701, the old rail located in the middle of the line track falls into the lifting slides of the front rail-changing trolley and the rear rail-changing trolley in turn, and enters the tail car of the operation; S702, the old rail passes through the tail car, power generation car, rail welding car and the first working car in sequence, and is retrieved to the long rail car through the middle channel. At the same time, the old rail is put into the groove by the automatic rail splitting device, and the long rail and the old rail are fixed and locked by a mechanical device at the end of the rail replacement; S703, when the old rail reaches the storage limit length of the long rail vehicle unit rail, the construction train is suspended, the old rail is moved to both sides of the vehicle body on the long rail vehicle, the rail clamp is removed, and the shuttle head is installed; S704, the construction train continues to move, and repeats steps S701 to S703 until all the old rails are slotted into place on the T11 long rail car, and the construction train exits the rail replacement area and completes the remaining rail fastener installation and fastening work; S705. The construction train is coupled with the mobile rail welding vehicle and tractor and exits the construction section.

9. The high-speed railway integrated track-changing method of the high-speed railway integrated track-changing train arrangement structure according to claim 1, characterized in that: In step S100, flash welding is used to synchronously complete seamless welding of two rails.

10. The high-speed railway integrated track-changing method of the high-speed railway integrated track-changing train arrangement structure according to claim 1, characterized in that: In step S400, the step of removing the old rail from the track includes: removing the fasteners fixing the old rail, and setting the retained fasteners on the old rail of the construction safety road by retaining a set of fasteners every certain number of sleepers.

11. The high-speed railway integrated track-changing method of the high-speed railway integrated track-changing train arrangement structure according to claim 1, characterized in that: A dismantling station is provided on the tail car of the construction train, and before the rail is replaced, the retaining fasteners are used to release the clamping function of the old rails.

12. The high-speed railway integrated track-changing method of the high-speed railway integrated track-changing train arrangement structure according to claim 8, characterized in that: In steps S400-S500, the long rails are transported from the long rail vehicle through the passages on both sides of the first working vehicle, the rail welding vehicle, the power generation vehicle, and the working tail vehicle in turn to the ground; in steps S701-S704, the old long rails are transported through the middle passages of the working tail vehicle, the power generation vehicle, the rail welding vehicle, and the first working vehicle in turn to enter the long rail vehicle and fall into position in the slot.

13. The high-speed railway integrated track-changing method of the high-speed railway integrated track-changing train arrangement structure according to claim 1, characterized in that: The welding machine arrangement of the rail welding vehicle consists of two integrated welding and normalizing machines.

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