CN118704285B - Railway turnout rail welding equipment and construction method - Google Patents
Railway turnout rail welding equipment and construction method Download PDFInfo
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- CN118704285B CN118704285B CN202411178877.XA CN202411178877A CN118704285B CN 118704285 B CN118704285 B CN 118704285B CN 202411178877 A CN202411178877 A CN 202411178877A CN 118704285 B CN118704285 B CN 118704285B
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- 238000003466 welding Methods 0.000 title claims abstract description 461
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 95
- 239000010959 steel Substances 0.000 claims abstract description 95
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims description 48
- 230000002787 reinforcement Effects 0.000 claims description 31
- 230000033001 locomotion Effects 0.000 claims description 7
- 241001669679 Eleotris Species 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000003028 elevating effect Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000010953 base metal Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000003832 thermite Substances 0.000 description 4
- 230000004075 alteration Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000009323 psychological health Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/02—Working rail or other metal track components on the spot
- E01B31/18—Reconditioning or repairing worn or damaged parts on the spot, e.g. applying inlays, building-up rails by welding; Heating or cooling of parts on the spot, e.g. for reducing joint gaps, for hardening rails
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/02—Travelling-gear, e.g. associated with slewing gears
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2203/00—Devices for working the railway-superstructure
- E01B2203/01—Devices for working the railway-superstructure with track
- E01B2203/012—Devices for working the railway-superstructure with track present, i.e. in its normal position
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2203/00—Devices for working the railway-superstructure
- E01B2203/14—Way of locomotion or support
- E01B2203/141—Way of locomotion or support on the track to be treated
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The embodiment of the application provides railway turnout rail welding equipment and a construction method, which comprise a digging machine and a rail welding trolley, wherein the digging machine is used for both roads and railways, integrates electric energy required by welding operation, and can hoist and transport the rail welding trolley; the welding rail trolley carries a welding machine lifting device, a welding machine, a cold water machine, a welding machine pump station, an intermediate frequency power supply cabinet, a control cabinet and the like; longitudinal telescopic devices are arranged on two sides of the welding rail trolley, and are unfolded towards two sides during welding operation, and are retracted into the frame in the rest time; the bottom of the welding track trolley is provided with a travelling steel wheel. After the turnout welding rail equipment is transported in place through a railway or a road, a welding rail trolley moves or is transported to a position to be welded, and welding machine alignment is realized through a welding machine lifting device to weld. The integrated rail welding trolley is adopted, and has the characteristics of simple structure, flexibility, convenience, light weight, small volume, strong site operability and the like, and only needs to be connected with a cable of the excavator platform during operation; the welding device can be used for welding without occupying adjacent lines, is time-saving and convenient, has strong adaptability, and is suitable for the field of railway line maintenance.
Description
Technical Field
The application relates to the technical field of railway line maintenance, in particular to railway turnout rail welding equipment and a construction method.
Background
The inter-cross seamless line is tried to be laid in China since 1993, and the inter-cross seamless line is covered by the conventional railway. At present, the domestic rail welding mode is similar to foreign one, mainly there are three basic methods of flash welding, gas pressure welding and thermite welding, but at present, thermite welding is adopted for the reasons of laying technology and structure, etc. The welded seam of the thermit welding head is formed into a casting structure, the comprehensive mechanical property of the welded seam is greatly reduced compared with that of a base metal, so that the strength of the welded seam and the service life of a steel rail can only reach one third or about one half of that of the base metal, and all the thermit welding heads can not be subjected to a severe drop hammer test in a steel rail type test until now, and the reasons are that the severe drop hammer test is used for severely restricting the speed-up requirement of a high-speed railway and threatening the driving safety of the high-speed railway. Although the development work of the high-speed turnout has been greatly progressed at present, the high-speed turnout rail welding technology and related equipment have not been broken through, so that the passing speed of the train passing through the turnout is severely restricted and hindered, the speed of the high-speed railway is greatly reduced, and serious potential safety hazards of railway operation exist.
Because of the limitations of the prior art and equipment, the high requirements of welding quality such as high strength, high smoothness, high precision fixed length and the like of the turnout steel rail welding cannot be met and solved at the same time. On one hand, the existing railway main rail welding equipment is seriously excessive; on the other hand, the number of rail joints of a large number of stop lines and turnout lines is much larger than that of rail joints on a railway positive line, but no equipment is available for welding, so that the market is in urgent need of numerical control welding equipment suitable for turnout welding, and the prospect is wide.
As the traditional high-end manufacturing industry, the track traffic is urgently needed to deeply advance the leading edge leading technology to be integrated with the 'cross-border' of the track traffic industry, track welding construction equipment is developed towards the green, environment-friendly and intelligent directions in the fields of track traffic new construction, existing line overhaul and the like, so that high-quality, high-stability and high-efficiency construction operation is realized. At present, in the construction of a track traffic seamless line, the requirements on green environment protection are increasingly enhanced, and the traditional internal combustion power welding construction equipment faces the problems that the tail gas emission exceeds standard, the physical and psychological health of constructors is affected by noise, the high-altitude internal combustion power is insufficient, the intelligent degree is low, the production quality and efficiency are required to be improved, and the like.
Aiming at the actual situation of the welding operation under the turnout line of the existing railway line overhaul to form a turnout and new line construction, the new energy turnout rail welding equipment vehicle meeting the welding operation needs is urgently needed to be developed.
Disclosure of Invention
In order to solve one of the technical defects, the embodiment of the application provides railway switch rail welding equipment and a construction method.
According to a first aspect of an embodiment of the present application, there is provided a railway switch rail arrangement comprising:
the power system is used for providing electric energy required by welding operation, the tail end of the bucket rod of the excavator is provided with a lifting hook, and the lifting hook is used for lifting the welding rail trolley;
the welding rail trolley comprises a frame, a welding machine is hoisted in the frame through a welding machine hoisting device, and the welding machine is used for finishing welding of the steel rail joints;
The longitudinal telescopic device is arranged on two sides of the frame in a telescopic way, a welding machine pump station, a control cabinet, a power cabinet and a water chiller are arranged on the longitudinal telescopic device, and the longitudinal telescopic device is unfolded towards two sides and retracted into the frame in the rest time during welding operation;
the running steel wheel is hinged to the bottom of the frame and can transversely displace relative to the frame, and the straight bent strand switching of the welding rail trolley when running on the turnout can be realized through the running steel wheel.
Preferably, the frame comprises:
the two longitudinal beams are arranged in parallel, are arranged at the top of the frame, and the middle parts of the two longitudinal beams are connected through an upper cross beam;
the transverse moving mechanism is connected with the top of the welding machine lifting device and is connected with the upper cross beam in a sliding manner;
The support legs are vertically arranged on two sides of the bottoms of the two longitudinal beams, the inner sides of the support legs are connected through the lower cross beam, and the travelling steel wheels are arranged below the lower cross beam;
The longitudinal telescopic device is arranged along the running direction of the rail welding trolley, the inside of the two sides of the longitudinal beam is hollow, an oil cylinder is arranged at the output end of the oil cylinder, a guide post is connected with the output end of the oil cylinder, the guide post is sleeved in the longitudinal beam and is connected with the longitudinal beam in a sliding manner, two guide posts positioned on the same side of the frame are connected through a support rod, and a support frame is arranged below the support rod.
Preferably, the running steel wheel comprises:
The guide sleeve cross beam is arranged at the bottom of the lower cross beam and is arranged in the frame along the direction perpendicular to the travelling direction of the welding rail trolley;
The end parts of the guide sleeve beams are arranged in a hollow mode, the two transverse guide posts are respectively connected to the two ends of the guide sleeve beams in a sliding mode, a transverse moving oil cylinder is further arranged in the guide sleeve beams, and one end of the transverse moving guide posts sleeved in the guide sleeve beams is connected with the output end of the transverse moving oil cylinder;
The steel wheel is hinged to the other end of the transverse guide post, can swing in the horizontal plane, and can synchronously or independently transversely move in front and back groups, so that different transverse movement displacement is realized.
Preferably, the bottom of the frame is provided with a bottom supporting mechanism, the bottom supporting mechanism is arranged below the welding machine, and the bottom supporting mechanism can stretch and retract towards the inside of the frame along the direction perpendicular to the travelling direction of the welding rail trolley; when the welding rail trolley is in a non-welding state, the bottom supporting mechanism extends out and supports the bottom of the welding machine.
Preferably, the bottom end of the supporting leg is provided with a jacking mechanism, the jacking mechanism is used for jacking the welding rail trolley to be separated from the steel rail, and the jacking mechanism is also used for supporting the welding rail trolley after the welding rail trolley is separated from the steel rail.
Preferably, the longitudinal telescopic device comprises:
the longitudinal telescopic device of the pump station is positioned on one side of the frame, and the pump station and the control cabinet of the welding machine are arranged on the support frame on the side;
the intermediate frequency power supply cabinet and the cold water machine are arranged on a supporting frame on the side.
Preferably, the railway switch rail welding equipment further comprises:
the plurality of flat cars are linked and then grouped;
the tractor is connected to the flat car in a hanging way;
the flat car cranes are loaded on each flat car and are used for carrying out lifting operation on the welding rail trolley;
the excavator and the welding rail trolley are arranged on one flat car in the marshalling.
Preferably, the excavator comprises:
The excavator platform is provided with a cab;
the excavator comprises an excavator chassis, wherein a rotating device is arranged on the excavator chassis, an excavator platform is connected with the excavator chassis through the rotating device, and the excavator platform performs rotating motion relative to the excavator chassis through the rotating device;
The chassis of the excavator comprises crawler running devices and running steel wheel devices which are arranged independently of each other, and the running steel wheel devices are arranged at the head end and the tail end of the chassis of the excavator.
Preferably, the power system is arranged on the excavator platform and comprises a battery, a charger, an auxiliary generator and a battery cabinet.
Preferably, the excavator platform is also provided with a hydraulic system and an electric system;
When the welding track trolley performs welding operation, the electrical system is connected with the electric equipment on the excavator and the welding track trolley, and the electrical system is used for providing electrical control for the electric equipment on the excavator and the welding track trolley.
According to a second aspect of the embodiment of the present application, there is provided a construction method of a railway switch rail welding apparatus, including any one of the above-mentioned railway switch rail welding apparatus, comprising the steps of:
s101, a digging machine runs onto a flat car in a group through a tooling support pad, reinforcement and locking are carried out, a rail welding trolley is placed on the flat car and positioned on one side of the digging machine, reinforcement and locking are carried out between the rail welding trolley and the flat car, and after turnout components are loaded on the rest flat cars, turnout paving vehicles drive into a pre-paving place;
s102, removing reinforcement locking between the excavator and the flat car, wherein the excavator adopts a tooling support pad to get off;
S103, releasing reinforcement locking between the welding rail trolley and the flat car, and lifting the welding rail trolley and the welding machine to the vicinity of the pre-paved fork by a flat car crane;
s104, the turnout paving vehicle is regrouped and driven away from the pre-paving site;
S105, a welding rail trolley moves to a welding joint, the welding rail trolley is connected with the excavator through a cable, the longitudinal expansion device is opened, and the bottom supporting mechanism is retracted;
s106, the supporting legs vertically descend to prop against the sleeper or between the sleepers, so that the running steel wheels are separated from the steel rails;
s107, hanging the welding machine to the welding point through a welding machine hanging device, performing position fine adjustment, and performing welding operation after the welding machine is aligned to the welding joint;
S108, after the welding work of one welding joint is completed, the bottom supporting mechanism stretches out, the welding machine is lifted to the bottom supporting mechanism by the welding machine lifting device to be fixed, the supporting legs are retracted, the longitudinal telescopic device is retracted, the welding rail trolley is moved to the next welding joint through the moving steel wheel, or the welding rail trolley is lifted to the next welding joint by the excavator lifting hook;
s109, repeating the steps S106-108 until all welding operations are completed;
And S110, after all welding operations are completed, the bottom supporting mechanism stretches out, the welding machine is lifted to the bottom supporting mechanism by the welding machine lifting device to be fixed, the supporting legs are retracted, the longitudinal telescopic device is retracted, a section of flat car is added in the switch paving vehicle grouping, then the vehicle is driven into the pre-paving site again, the flat car crane lifts the welding rail trolley onto the flat car to carry out reinforcement locking, and the excavator adopts the tooling supporting pad to load on the flat car to carry out reinforcement locking, and the switch paving vehicle grouping is driven out of the operation interval.
The railway turnout rail welding equipment and the construction method provided by the embodiment of the application have the advantages that the highway and railway dual-purpose excavator is adopted, so that the adaptability is strong; the integrated welding rail trolley is adopted, the telescopic longitudinal telescopic devices are arranged on two sides of the frame of the welding rail trolley and are unfolded to two sides during welding operation, so that a welding space is reserved for a welding machine, the longitudinal telescopic devices retract into a frame in the transportation process and when the welding operation is not performed, an integral frame structure is formed, the protection of components in the frame can be provided, the stability is higher, the lifting of the welding rail trolley by a flat car crane and a lifting hook of a digging machine is facilitated, and the safety and the protectiveness in the lifting and transportation processes are greatly ensured; the bottom of the frame takes away the travelling steel wheel, and the movement is flexible and convenient; the welding machine is finely adjusted through a welding machine hoisting device, so that the welding precision is improved; the hydraulic excavator can be connected with a power supply, hydraulic power and a water source on the excavator through cables, and the connection of a plurality of cables is not needed; the welding operation does not need to occupy adjacent lines for welding, is time-saving and convenient, and can also be used for welding the adjacent lines, so that the adaptability is strong.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a side view of a railroad switch rail apparatus provided in an embodiment of the present application;
FIG. 2 is a side view of an excavator according to an embodiment of the present application;
FIG. 3 is a front view of a excavator according to an embodiment of the present application;
FIG. 4 is a top view of a excavator according to an embodiment of the present application;
FIG. 5 is a side view of a welding track trolley provided by an embodiment of the present application;
FIG. 6 is a schematic view of a welding track trolley provided by an embodiment of the application when a longitudinal expansion device is retracted;
FIG. 7 is an enlarged schematic view of FIG. 6 at A;
Fig. 8 is a schematic diagram of a welding track trolley when a longitudinal telescopic device is unfolded according to an embodiment of the application;
FIG. 9 is a side view of a longitudinal telescoping apparatus according to an embodiment of the present application when open;
FIG. 10 is a side view of a welding track trolley provided by an embodiment of the application when a support leg descends;
FIG. 11 is a schematic diagram of an existing on-line pre-paving operation according to an embodiment of the present application under a working condition ②;
FIG. 12 is a schematic diagram of an existing on-line pre-paving operation according to an embodiment of the present disclosure under conditions ③;
FIG. 13 is a schematic diagram of an existing road side air-ground pre-paving method according to an embodiment of the present application under a working condition ①;
FIG. 14 is a schematic diagram of an existing road side air-ground pre-paving method according to an embodiment of the present application under a working condition ②;
FIG. 15 is a schematic diagram of an existing road side air-ground pre-paving method according to an embodiment of the present application under a working condition ③;
The device comprises a digging machine 11, a digging machine platform 111, a cab 1111, a digging machine chassis 112, a crawler running device 1121, a running steel wheel device 1122, a rotating device 1123, a lifting hook 113, a welding rail trolley 12, a frame 121, a longitudinal telescopic device 122, a pumping station longitudinal telescopic device 1221, a medium-frequency cabinet cold water machine longitudinal telescopic device 1222, a guide pillar 1223, a supporting leg 123, a running steel wheel 124, a steel wheel 1241, a guide sleeve crossbeam 1242, a transverse guide pillar 1243, a bottom supporting mechanism 125, a welding machine lifting device 126, a welding machine pumping station 127, a medium-frequency power cabinet 128, a cold water machine 129, a welding machine 16, a flat car 2 and a flat car crane 21.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of exemplary embodiments of the present application will be given with reference to fig. 1 to 15, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments are exhaustive. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.
In the process of realizing the application, the inventor finds that the current domestic rail welding mode is similar to foreign rail welding modes, mainly comprises three basic methods of flash welding, air pressure welding and thermite welding, but the current turnout adopts thermite welding due to the laying process, structure and the like. The welded seam of the thermit welding head is formed into a casting structure, the comprehensive mechanical property of the welded seam is greatly reduced compared with that of a base metal, so that the strength of the welded seam and the service life of a steel rail can only reach one third or about one half of that of the base metal, and all the thermit welding heads can not be subjected to a severe drop hammer test in a steel rail type test until now, and the reasons are that the severe drop hammer test is used for severely restricting the speed-up requirement of a high-speed railway and threatening the driving safety of the high-speed railway. Although the development work of the high-speed turnout has been greatly progressed at present, the high-speed turnout rail welding technology and related equipment have not been broken through, so that the passing speed of the train passing through the turnout is severely restricted and hindered, the speed of the high-speed railway is greatly reduced, and serious potential safety hazards of railway operation exist. Because of the limitations of the prior art and equipment, the high requirements of welding quality such as high strength, high smoothness, high-precision fixed length dimension and the like of the turnout steel rail welding cannot be met and solved simultaneously. On one hand, the existing railway main rail welding equipment is seriously excessive; on the other hand, the number of rail joints of a large number of stop lines and turnout lines is much larger than that of rail joints on a railway positive line, but no equipment is available for welding, so that the market is in urgent need of numerical control welding equipment suitable for turnout welding, and the prospect is wide. As the traditional high-end manufacturing industry, the track traffic is urgently needed to deeply advance the leading edge leading technology to be integrated with the 'cross-border' of the track traffic industry, track welding construction equipment is developed towards the green, environment-friendly and intelligent directions in the fields of track traffic new construction, existing line overhaul and the like, so that high-quality, high-stability and high-efficiency construction operation is realized. At present, in the construction of a track traffic seamless line, the requirements on green environment protection are increasingly enhanced, and the traditional internal combustion power welding construction equipment faces the problems that the tail gas emission exceeds standard, the physical and psychological health of constructors is affected by noise, the high-altitude internal combustion power is insufficient, the intelligent degree is low, the production quality and efficiency are required to be improved, and the like. Aiming at the actual situation of the welding operation under the turnout line of the existing railway line overhaul to form a turnout and new line construction, the new energy turnout rail welding equipment vehicle meeting the welding operation needs is urgently needed to be developed.
In the present embodiment, the direction extending from the railway line is referred to as the longitudinal direction, the horizontal direction perpendicular to the direction extending from the railway line is referred to as the lateral direction, and the direction perpendicular to the horizontal plane is referred to as the vertical direction or the vertical direction.
In view of the foregoing, an embodiment of the present application provides a railroad switch rail apparatus, as shown in fig. 2, including:
the excavator 11 is provided with a power system, the power system is used for providing electric energy required by welding operation, the tail end of a bucket rod of the excavator 11 is provided with a lifting hook 113, and the lifting hook 113 is used for lifting the welding rail trolley 12;
The welding rail trolley 12, the welding rail trolley 12 comprises a frame 121, a welding machine 16 is hoisted in the frame 121 through a welding machine hoisting device 126, and the welding machine 16 is used for finishing welding of rail joints;
The longitudinal telescopic devices 122 are arranged on two sides of the frame 121 in a telescopic manner, a welding machine pump station 127 and a control cabinet are arranged on the longitudinal telescopic device 122 on one side, a power supply cabinet 128 and a water chiller 129 are arranged on the longitudinal telescopic device 122 on the other side, and the longitudinal telescopic device 122 is unfolded to two sides and retracted into the frame 121 in the rest time during welding operation;
the running steel wheel 124, the running steel wheel 124 is hinged at the bottom of the frame 121 and can transversely displace relative to the frame 121, and the straight and curved strand switching of the welding rail trolley 12 when running on the turnout can be realized through the running steel wheel 124.
In specific implementation, the excavator 11 lifts the welding rail trolley 12 by the lifting hook 113, moves to the vicinity of the pre-paved fork, runs the excavator 11 to the welding joint, connects the excavator 11 with the welding rail trolley 12 by cables, deploys the longitudinal telescopic devices 122 to two sides of the frame 121, drives the welding machine 16 to move in the frame 121 by the welding machine lifting device 126, finely adjusts the position of the welding machine 16, enables the output end of the welding machine 16 to be aligned with the welding joint, and performs welding operation after the welding machine 16 is aligned with the welding joint;
When the welding track trolley 12 performs welding operation, the intermediate frequency power supply cabinet 128 is used for converting the power provided by the excavator 11 and inputting the converted power to electric equipment of the welding track trolley 12, the control cabinet is used for regulating and controlling the electric equipment on the welding track trolley 12, the cold water machine 129 is used for cooling the welding machine 16 in a water cooling mode, and the welding machine pump station 127 is used for supplying water to the cold water machine 129;
After the welding operation is completed, the welding machine lifting device 126 drives the welding machine 16 to return to the original position, the longitudinal telescopic device 122 is retracted inwards and is retracted into the frame 121, and the welding rail trolley 12 moves to the next welding joint in a self-walking or lifting and moving mode of the dug machine 11 to perform the welding operation until all the welding operations are completed.
As a preferred embodiment, as shown in fig. 5, 6 and 8, the frame 121 includes:
The two longitudinal beams are arranged at the top of the frame 121, are horizontally arranged and are consistent with the travelling direction of the rail welding trolley 12, and the middle parts of the two longitudinal beams are connected through an upper cross beam;
The transverse moving mechanism is connected with the top of the welding machine lifting device 126 and is connected with the upper beam in a sliding manner;
the supporting legs 123 are vertically arranged on two sides of the bottoms of the two longitudinal beams, the inner sides of the supporting legs 123 are connected through a lower cross beam, and the travelling steel wheels 124 are arranged below the lower cross beam;
The longitudinal telescopic device 122 is arranged along the travelling direction of the welding track trolley 12, the inside of the two sides of the longitudinal beam is hollow, an oil cylinder is arranged, the output end of the oil cylinder is connected with a guide pillar 1223, the guide pillar 1223 is sleeved in the longitudinal beam and is connected with the longitudinal beam in a sliding manner, the two guide pillars 1223 positioned on the same side of the frame 121 are connected through a supporting rod, and a supporting frame is arranged below the supporting rod.
In specific implementation, the frame 121 is formed by a longitudinal beam, an upper cross beam and a lower cross beam, and a plurality of lifting points are arranged at the top of the frame 121 and are used for being connected with the lifting hook 113 of the excavator 11 during lifting; the transverse moving mechanism drives the welding machine lifting device 126 to transversely move along the upper cross beam, and the welding machine lifting device 126 vertically displaces the welding machine 16 in the frame 121 to realize fine adjustment of the position of the welding machine 16 in a matched mode; when the longitudinal telescopic device 122 needs to be unfolded outwards or retracted inwards, the oil cylinder is started, and the output end of the oil cylinder drives the guide pillar 1223 to displace along the longitudinal beam direction, so that the supporting frames on the two sides are unfolded or retracted; the support frames on the two sides are respectively used for bearing a welding machine pump station 127, a control cabinet, a power supply cabinet 128 and a water chiller 129.
As a preferred option, as shown in fig. 7, the running steel wheel 124 includes:
The guide sleeve cross beam 1242 is arranged at the bottom of the lower cross beam, and is arranged in the frame along the direction perpendicular to the travelling direction of the welding track trolley 12;
the end parts of the guide sleeve beams 1242 are arranged in a hollow mode, the two guide sleeve beams 1243 are respectively connected to the two ends of the guide sleeve beams 1242 in a sliding mode, a transverse moving oil cylinder is further arranged in the guide sleeve beams 1242, and one end of each transverse moving guide sleeve beam 1243 sleeved in each guide sleeve beam 1242 is connected with the output end of each transverse moving oil cylinder;
The steel wheel 1241, the steel wheel 1241 articulates in sideslip guide pillar 1243's the other end, and steel wheel 1241 can swing in the horizontal plane, and driving motor is installed to steel wheel 1241 department, and driving motor's output links to each other with steel wheel 1241's shaft transmission, and two sets of steel wheels 1241 can synchronous or independent sideslip around, realizes different sideslip displacement.
As a preferable scheme, as shown in fig. 10, a lifting mechanism is mounted at the bottom end of the supporting leg 123, the lifting mechanism is used for lifting the welding rail trolley 12 to be separated from the steel rail, and the lifting mechanism is also used for supporting the welding rail trolley 12 after the welding rail trolley 12 is separated from the steel rail.
In specific implementation, the transverse guide post 1243 can slide inwards in the guide sleeve cross beam 1242 along the travelling direction perpendicular to the welding rail trolley 12 under the drive of the transverse moving oil cylinder, and is used for adjusting the distance between the steel wheels 1241 on the two steel rails so that the welding rail trolley 12 can adapt to the steel rails with different widths; the hinged design of the steel wheel 1241 enables the steel wheel 1241 to swing for a certain angle in a horizontal plane, when the welding track trolley 12 runs to the junction of the straight strand and the bent strand, the welding track trolley 12 is lifted and supported by matching with a lifting mechanism on the supporting leg 123, so that the welding track trolley is separated from a steel rail, the steel wheel 1241 is manually adjusted, the steel wheel 1241 swings for a proper angle in the horizontal plane, the lifting mechanism retracts, the welding track trolley 12 is lowered, the steel wheel 1241 with the changed angle can travel on the straight strand or the bent strand, and therefore the switching of the welding track trolley 12 between the straight strand and the bent strand is realized (a steering motor can be installed at the hinged part of the steel wheel 1241, and the swinging angle of the steel wheel 1241 is electrically adjusted); the arrangement of the driving motor can enable the welding track trolley 12 to realize running by self power or to be manually pushed without power. The welding track trolley 12 is not limited to being transported to the site by the flat car 2, and when the distance is relatively short, the steel wheel 1241 can be driven by the driving motor to rotate, so that the welding track trolley 12 arrives at the site in a self-walking mode.
As a preferable scheme, as shown in fig. 7, a bottom supporting mechanism 125 is arranged at the bottom of the frame 121, the bottom supporting mechanism 125 is arranged below the welding machine 16, and the bottom supporting mechanism 125 can extend and retract to the inside of the frame 121 along the direction perpendicular to the travelling direction of the welding rail trolley 12; when the welding rail trolley 12 is in a non-welding state, the bottom support mechanism 125 extends to support the bottom of the welding machine 16.
In particular, the bottom support mechanism 125 is configured to extend and support the welder 16 when the welding track trolley 12 is not in a welding operation state, retract to provide a welding space for the welder 16 and provide a displacement space in a vertical direction for the welder lifting device 126 before the welding track trolley starts a welding operation.
As a preferred embodiment, as shown in fig. 5, 6, 8, and 9, the longitudinal telescopic device 122 includes:
The pump station longitudinal telescopic device 1221 is positioned on one side of the frame 121, and the welding machine pump station 127 and the control cabinet are arranged on the support frame on the side and positioned at the rear section of the support frame on the side;
the intermediate frequency power supply cabinet 128 and the cold water machine 129 are installed on the support frame on the side and are positioned at the rear section of the support frame on the side, and the intermediate frequency cabinet cold water machine longitudinal telescopic device 1222 is positioned at the other side of the frame 121.
When the welding track trolley 12 is not in a welding operation state, the pump station longitudinal telescopic device 1221 and the intermediate frequency cabinet water chiller longitudinal telescopic device 1222 are retracted into the frame 121, the welding machine pump station 127 and the control cabinet are accommodated in one side of the frame 121 along with the retraction of the pump station longitudinal telescopic device 1221, the intermediate frequency power supply cabinet 128 and the water chiller 129 are accommodated in the other side of the frame 121 along with the retraction of the intermediate frequency cabinet water chiller longitudinal telescopic device 1222, the residual spaces of the front sections of the two support frames are combined to form an accommodating space together, and the welding machine 16 is positioned in the accommodating space;
When the welding track trolley 12 is before welding operation, the pump station longitudinal telescopic device 1221 and the intermediate frequency cabinet water chiller longitudinal telescopic device 1222 are unfolded to two sides, the welding machine pump station 127 and the control cabinet extend to one side outside the frame 121 along with the unfolding of the pump station longitudinal telescopic device 1221, and the intermediate frequency power supply cabinet 128 and the water chiller 129 extend to the other side outside the frame 121 along with the unfolding of the intermediate frequency cabinet water chiller longitudinal telescopic device 1222.
In specific implementation, when the welding rail trolley 12 is not in a welding operation state, the longitudinal telescopic devices 122 at two sides (as shown in fig. 6 and 7) retract into the frame 121, so that the occupied space of the welding rail trolley 12 is reduced, transportation is facilitated, after the welding rail trolley 12 runs near the pre-paved fork, the longitudinal telescopic devices 122 at two sides are unfolded (as shown in fig. 9 and 10), so that space is reserved for movement of the welding machine hoisting device 126 and the welding machine 16, welding space is reserved for welding operation of the welding machine 16, and cable connection between the excavator 11 and the welding rail trolley 12 is facilitated after the longitudinal telescopic devices 122 at two sides are unfolded.
As a preferred embodiment, as shown in fig. 1, the railway switch rail welding apparatus further includes:
a plurality of flat cars 2, wherein the plurality of flat cars 2 are linked and grouped;
the tractor is connected to the flat car 2;
a flatbed crane 21, which is loaded on each flatbed 2, the flatbed crane 21 being used for carrying out a lifting operation on the butt welding rail trolley 12;
the excavator 11 and the welding rail trolley 12 are arranged on one pallet 2 in the group.
When the method is implemented, the turnout paving vehicles are required to be grouped firstly, after a plurality of flat cars 2 are hung in a linked manner, traction force is provided for the vehicle group by the hanging traction vehicle, the excavator 11 runs onto the flat cars 2 through the tool support pad and is reinforced and locked, the welding rail trolley 12 is placed on one side of the excavator 11 on the flat cars 2 and is reinforced and locked with the flat cars 2, and after turnout components are loaded on the other flat cars 2, the turnout paving vehicles are grouped together and run into a pre-paving place; the reinforcement locking between the excavator 11 and the flat car 2 is released, the excavator 11 adopts a tooling support to get off, the reinforcement locking between the welding rail trolley 12 and the flat car 2 is released, the flat car crane 21 on the flat car 2 lifts the welding rail trolley 12 and the welding machine 16 and conveys the welding rail trolley to the vicinity of the pre-paving turnout, and the turnout paving vehicle is re-grouped and driven away from the pre-paving site; after the welding is finished, the turnout paving vehicle runs on, the flat car crane 21 lifts the welding rail trolley 12 and the welding machine 16 onto the flat car 2 for reinforcement and locking, the excavator 11 adopts a tooling support pad to get on the car, loads on the flat car 2 and performs reinforcement and locking, and the turnout paving vehicle runs off the operation section under the action of the tractor.
As a preferred embodiment, as shown in fig. 2 to 4, the excavator 11 includes:
A dig platform 111, on which a cab 1111 is arranged on the dig platform 111;
The excavator comprises an excavator chassis 112, wherein a rotating device 1123 is arranged on the excavator chassis 112, the excavator platform 111 is connected with the excavator chassis 112 through the rotating device 1123, and the excavator platform 111 performs rotating motion relative to the excavator chassis 112 through the rotating device 1123;
the excavator chassis 112 includes crawler running devices 1121 and 1122 which are independently provided, and the crawler running devices 1122 are provided at the front and rear ends of the excavator chassis 112.
When the excavator 11 needs to travel on a road or other road surface, the traveling steel wheel device 1122 is retracted, and the crawler traveling device 1121 provides the advancing power for the excavator 11;
When the excavator 11 needs to travel on the rail, the crawler travel devices 1121 stop running, the travel steel wheel devices 1122 drop down, and support the excavator 11 to travel on the rail.
As a preferred solution, a power system is mounted on the excavator platform 111, and the power system includes a battery, a charger, an auxiliary generator, and a battery cabinet.
The charger is connected with an external power supply and charges a battery in the battery cabinet; when the charger is inconvenient to charge by an external power supply and still has construction requirements, the auxiliary generator is started to charge the battery in the battery cabinet.
Specifically, the power system can further comprise an electrical control cabinet and an autotransformer, the output end of the battery cabinet is sequentially connected with the electrical control cabinet and the autotransformer, and the electrical control cabinet and the autotransformer are used for converting the voltage of the output end of the battery cabinet into voltage safety voltage which is used by the welding machine and the hydraulic system.
As a preferred solution, the excavator platform 111 is further provided with a hydraulic system and an electrical system;
when the welding track trolley 12 performs welding operation, an electrical system is connected with the electric equipment on the excavator 11 and the welding track trolley 12, and the electrical system is used for providing electrical control for the electric equipment on the excavator 11 and the welding track trolley 12.
Specifically, the excavator platform 111 is further provided with an emergency pump, so that emergency operation or emergency vehicle collection can be performed when the pump station fails.
The excavator provided by the embodiment can realize highway and railway dual-purpose, so that the turnout rail welding machine can adapt to running under various working conditions, has extremely strong adaptability, and adopts the excavator to hoist the rail welding trolley more stably; the power system is loaded, the power system can supply power to the electric equipment on the excavator and the rail welding trolley, the hydraulic system is loaded, hydraulic power can be provided for the excavator and the hydraulic equipment on the rail welding trolley, and in the construction process, the rail welding trolley and corresponding supply and demand equipment on the excavator can be put into use after being connected by a small number of cables, the connection of a plurality of cables is not needed when the rail welding trolley performs welding operation, and the rail welding trolley is more flexible and convenient in the practical use process and strong in adaptability.
The embodiment of the application also provides a construction method of the railway turnout rail welding equipment, which is suitable for the pre-paving working condition of the existing line, the pre-paving working condition of the existing line by-pass air-ground and some special working conditions, and the working method of the application under different working conditions is discussed in detail below with reference to figures 11-15:
1. the pre-paving construction method on the existing line comprises the following steps:
s101, a digging machine 11 runs onto a flat car 2 of one of the groups through a tooling support pad and performs reinforcement locking, a rail welding trolley 12 is placed on one side of the digging machine 11 on the flat car 2 and performs reinforcement locking with the flat car 2, after turnout components are loaded on the rest flat cars 2, turnout paving vehicles run into a pre-paving place;
S102, relieving reinforcement locking between the excavator 11 and the flat car 2, wherein the excavator 11 adopts a tooling support pad for unloading;
S103, the reinforcement locking between the welding rail trolley 12 and the flat car 2 is released, and the flat car crane 21 lifts the welding rail trolley 12 and the welding machine 16 to the vicinity of the pre-paved fork;
s104, the turnout paving vehicle is regrouped and driven away from the pre-paving site;
S105, the welding rail trolley 12 moves to the welding joint, the welding rail trolley 12 is connected with the excavator 11 through a cable (only the welding rail trolley is connected with the excavator through the cable), the longitudinal expansion device 122 is opened, and the bottom supporting mechanism 125 is retracted;
s106, the supporting legs 123 vertically descend to prop against the sleeper or between the sleepers, so that the running steel wheels 124 are separated from the steel rails;
S107, hanging the welding machine 16 to the welding point through a welding machine hanging device 126, performing position fine adjustment, and performing welding operation after the welding machine 16 is aligned to the welding joint;
S108, after the welding work of one welding joint is completed, the bottom supporting mechanism 125 stretches out, the welding machine 16 is lifted to the bottom supporting mechanism 125 by the welding machine lifting device 126 to be fixed, the supporting legs 123 are retracted, the longitudinal telescopic devices 122 are retracted, and the welding rail trolley 12 moves to the next welding joint;
in step S108, when the welding track trolley 12 moves to the next welding joint, the following working conditions exist:
Working condition ①: in the same group of switches: if another welding point is not far and the welding points are connected by steel rails, the welding rail trolley 12 runs the steel wheel 124 to fall to the steel rails, and runs to the next welding point through the steel wheel 1241 to perform welding work (in the same group of turnouts);
Working condition ②: the on-line multi-group turnout is tiled, a reserved space between turnouts and a turnout can be used for parking a platform of the excavator (see figure 11), if another welding point is far and no steel rail directly reaches between the welding points, the welding rail trolley 12 runs the steel wheel 124 to the steel rail, the steel wheel 1241 is used for running the steel rail to the end of the existing steel rail, the excavator 11 simultaneously runs to the end of the existing steel rail, the lifting hook 113 of the excavator 11 lifts the welding rail trolley 12 to the beginning of the next steel rail, and the welding rail trolley 12 runs to the next welding point through the running steel wheel 124 for welding work (between turnouts);
Working condition ③: on-line multi-group turnout overlapping: (see figure 12), after the welding rail trolley 12 moves to the other welding point to be welded, the lifting hook 113 of the excavator 11 lifts the welding rail trolley 12 and the welding machine 16 to the line, a group of turnouts are paved on the welded turnouts, and the lifting hook 113 of the excavator 11 lifts the welding rail trolley 12 and the welding machine 16 to the new group of turnouts to repeatedly perform welding work;
s109, repeating the steps S106-108 until all welding operations are completed;
S110, after all welding operations are completed, the bottom supporting mechanism 125 stretches out, the welding machine 16 is lifted onto the bottom supporting mechanism 125 by the welding machine lifting device 126 to be fixed, the supporting legs 123 are retracted, the longitudinal telescopic devices 122 are retracted, a section of flat car 2 is added to a turnout paving vehicle group, then the flat car crane 21 lifts the welding rail trolley 12 onto the flat car 2 and performs reinforcement locking, the excavator 11 adopts a tooling supporting and loading vehicle, is loaded onto the flat car 2 and performs reinforcement locking, and the turnout paving vehicle group is driven away from an operation interval.
2. The existing route bypass air-ground pre-paving construction method comprises the following steps:
Working condition ①: the road side pre-paving field is wide, the front-back left-right space of the turnout is large, and the excavator platform is allowed to park (see fig. 13):
s2101, placing turnout welding rail equipment on a flat car 2 (provided with a flat car crane 21) for reinforcement, and carrying out grouping together with the vehicles for loading turnout components to a pre-paving place;
s2102, removing reinforcement locking between the excavator 11 and the flat car 2, wherein the excavator 11 adopts a tooling support pad for unloading;
s2103, releasing the fixation between the welding rail trolley 12 and the flat car 2, and lifting the welding rail trolley 12 and the welding machine 16 to the vicinity of the pre-paved fork by the flat car crane 21;
S2104, the transport vehicle is regrouped and driven away from the pre-paved site;
S2105, the excavator platform 111 can be parked in front of a turnout, behind the turnout or on two sides of the turnout according to the actual situation of the field; the welding track trolley 12 moves to the welding joint to perform cable quick connection, and the longitudinal telescopic device 122 is opened to leave the working position of the welding machine 16;
S2106, the supporting legs 123 of the rail welding trolley 12 vertically descend to be propped against the sleeper or between the sleepers, and the running steel wheels 124 are separated from the steel rails;
S2107, finely adjusting the position of the welding machine 16 by the welding machine lifting device 126 to enable the welding machine 16 to be aligned with a welding joint, and lifting the welding machine 16 to the welding point by the welding machine lifting device 126 to perform welding work;
S2108, after welding is completed, the welding machine 16 is hoisted to the bottom supporting mechanism 125 by the welding machine hoisting device 126 to be fixed, and the supporting legs 123 of the welding track trolley 12 are retracted; the welding rail trolley 12 runs the steel wheel 124 to fall to the steel rail, and runs to the next welding point through the steel wheel 1241 to perform welding work;
S2109, after welding is completed, a welding machine lifting device 126 of the welding track trolley 12 fixes the welding machine 16 to a bottom supporting mechanism 125, a longitudinal telescopic device 125 stretches out, a hydraulic supporting leg 123 of the welding track trolley 12 is retracted, a section of flat car 2 is added to a track switch laying vehicle group for loading switch welding equipment, and a flat car crane 21 lifts the welding track trolley 12 and the welding machine 16 to the flat car 2 for reinforcement;
s2110, loading the excavator 11 on a flat car 2 by adopting a tooling support pad;
S2111, reinforcing and locking the turnout rail welding equipment and the flat car 2, and driving away from an operation section under the action of a tractor.
Working condition ②: the road side pre-paving field is limited, only has the pre-paving space, and the turnout is not allowed to park on the platform of the excavator, but the field is firm, and the pre-paving turnout is not suspended or supported by a tripod and the like (see fig. 14):
S2201, placing turnout welding rail equipment on a flat car 2 (provided with a flat car crane 21) for reinforcement, and carrying out grouping together with the vehicles for loading turnout components to a pre-paving place;
S2202, removing reinforcement locking between the excavator 11 and the flat car 2, wherein the excavator 11 adopts a tooling support pad for getting off;
s2203, releasing the fixation between the welding rail trolley 12 and the flat car 2, and lifting the welding rail trolley 12 and the welding machine 16 to the vicinity of the pre-paved fork by the flat car crane 21;
S2204, the transport vehicle is regrouped and driven away from the pre-paved site;
S2205, the welding rail trolley 12 moves to a welding joint to perform cable quick connection, and the longitudinal expansion device 125 is opened to leave the working position of the welding machine;
S2206, the supporting legs 123 of the rail welding trolley 12 vertically descend to be propped against the sleeper or between the sleepers, and the running steel wheels 124 are separated from the steel rails;
S2207, finely adjusting the position of the welding machine by the welding machine lifting device 126 to enable the welding machine 12 to be aligned with a welding joint, and lifting the welding machine 16 to the welding point by the welding machine lifting device 126 to perform welding work;
S2208, after welding is completed, the welding machine 16 is hoisted to the bottom supporting mechanism 125 by the welding machine hoisting device 126 to be fixed, and the supporting legs 123 of the welding track trolley 12 are retracted; the welding rail trolley 12 runs the steel wheel 124 to fall to the steel rail, and runs to the next welding point through the steel wheel 1241 to perform welding work;
S2209, after welding is completed, the welding machine 16 is fixed to the bottom supporting mechanism 125 by the welding machine lifting device 126 of the welding track trolley 12, the longitudinal telescopic device 122 extends out, and the hydraulic supporting leg 123 of the welding track trolley 12 is retracted; a section of flat car 2 is added to the switch paving vehicle grouping for loading switch welding equipment, and a flat car crane 21 lifts the welding rail trolley 12 and the welding machine 16 to the flat car for reinforcement;
S2210, the excavator 11 adopts a tooling support pad to get on the platform truck 2;
s2211, reinforcing and locking the turnout rail welding equipment and the flat car 2, and driving away from an operation section under the action of a tractor.
Working condition ③: the track pre-paving field is limited, the turnout is not allowed to park on the platform of the excavator, and the pre-paving turnout is suspended or supported by a scaffold and the like, and cannot bear the condition that the welding track trolley walks on the turnout (see figure 15):
S2301, placing turnout welding rail equipment on a flat car 2 (provided with a flat car crane 21) for reinforcement, and grouping and driving the turnout component-loaded vehicles into a pre-paving place;
S2302, removing reinforcement locking between the excavator 11 and the flat car 2, wherein the excavator 11 uses a tooling support pad to get off, and the excavator 11 occupies adjacent lines and walks to the side edge of the pre-paved fork;
S2303, releasing the fixation between the welding rail trolley 12 and the flat car 2, and lifting the welding rail trolley 12 to a proper position on the roadside of the pre-paved fork line by the flat car crane 21;
s2304, the transportation vehicle is regrouped and driven away from the pre-paved site;
s2305, removing reinforcement locking between the welding machine 16 and the welding track trolley 12, and lifting the welding machine 16 by the excavator lifting hook 113 to align, connecting the welding track trolley 12 with the cable of the excavator platform 111, and connecting the cable, the oil pipe and the water pipe between the welding track trolley 12 and the welding machine 16;
s2306, lifting the welding machine 16 by the excavator lifting hook 113 to perform welding work;
After the welding is finished, the excavator platform 111 moves to the vicinity of the next welding point, and the welding rail trolley 12 also moves to the vicinity of the next welding point;
S2308, lifting hook 113 of excavator platform 111 lifts welder 16 to welding position to weld, after welding, demolish the circuit connection between welder 16 and welding rail trolley 12, lifting hook 113 of excavator 11 lifts welder 16 to welding rail trolley 12 to fix;
S2309, a section of flat car 2 is added to the switch paving vehicle grouping for loading switch welding equipment, and a flat car crane 21 lifts a welding rail trolley 12 and a welding machine 16 to the flat car 2 for reinforcement;
s2310, the excavator 11 uses a tooling support pad to get on the platform truck 2 for reinforcement;
s2311, reinforcing and locking the turnout rail welding equipment and the flat car 2, and driving away from an operation section under the action of a tractor.
The railway turnout rail welding equipment provided by the application adopts the highway and railway dual-purpose excavator, has extremely strong adaptability, and the excavator hoisting rail welding trolley is very stable; during welding operation, adjacent wires are not required to be occupied for welding, so that time is saved, convenience is brought, adjacent wire welding can be performed, and the adaptability is high; the integrated welding rail trolley is adopted, the telescopic longitudinal telescopic devices are arranged on two sides of the frame of the welding rail trolley and are unfolded to two sides during welding operation, so that a welding space is reserved for a welding machine, the longitudinal telescopic devices retract into a frame in the transportation process and when the welding operation is not performed, an integral frame structure is formed, the protection of components in the frame can be provided, the stability is higher, the lifting of the welding rail trolley by a flat car crane and a lifting hook of a digging machine is facilitated, and the safety and the protectiveness in the lifting and transportation processes are greatly ensured; the welding rail trolley takes away the travelling steel wheel, and the movement is flexible and convenient; dig quick-witted from taking driving system, electrical system, hydraulic system and water source, only need with a small number of cables will weld the rail dolly and dig corresponding supply and demand equipment on the machine and connect the back and can put into use, need not to carry out the connection of unnecessary cable, nimble convenience has very strong practicality.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (11)
1. A railroad switch rail welding apparatus, comprising:
The welding device comprises a digging machine (11), wherein a power system is borne on the digging machine (11) and is used for providing electric energy required by welding operation, a lifting hook (113) is arranged at the tail end of a bucket rod of the digging machine (11), and the lifting hook (113) is used for lifting a welding rail trolley (12);
The welding rail trolley (12), wherein the welding rail trolley (12) comprises a frame (121), a welding machine (16) is hoisted in the frame (121) through a welding machine hoisting device (126), and the welding machine (16) is used for finishing welding of steel rail joints;
The longitudinal telescopic device (122) is arranged on two sides of the frame (121) in a telescopic manner, a welding machine pump station (127), a control cabinet power supply cabinet (128) and a water chiller (129) are arranged on the longitudinal telescopic device (122), and the longitudinal telescopic device (122) is unfolded to two sides and retracted into the frame (121) in the rest time during welding operation;
The walking steel wheel (124), walk the steel wheel (124) articulated in frame (121) bottom, and can swing in the horizontal plane, two sets of steel wheel (124) around can be synchronous or independent sideslip, and through the sideslip displacement that can realize the difference with landing leg (123) elevating fit, weld rail dolly (12) through walk the steel wheel (124) realization switch in the switch straight and curved strand walk.
2. The railway switch and track arrangement of claim 1, wherein said carriage (121) comprises:
The two longitudinal beams are arranged in parallel, are arranged at the top of the frame (121), and the middle parts of the two longitudinal beams are connected through an upper cross beam;
the transverse moving mechanism is connected with the top of the welding machine lifting device (126) and is connected with the upper cross beam in a sliding manner;
The supporting legs (123) are vertically arranged on two sides of the bottoms of the two longitudinal beams, the inner sides of the supporting legs (123) are connected through a lower cross beam, and the travelling steel wheels (124) are arranged below the lower cross beam;
The longitudinal telescopic device (122) is arranged along the advancing direction of the welding rail trolley (12), oil cylinders are hollow in two sides of the longitudinal beam and are arranged in the longitudinal beam, the output ends of the oil cylinders are connected with guide posts (1223), the guide posts (1223) are sleeved in the longitudinal beam and are connected with the longitudinal beam in a sliding manner, two guide posts (1223) which are positioned on the same side of the frame (121) are connected through a supporting rod, and a supporting frame is arranged below the supporting rod.
3. The railway switch track-welding apparatus of claim 2 wherein said running steel wheel (124) comprises:
the guide sleeve cross beam (1242) is arranged at the bottom of the lower cross beam and is arranged in the frame along the direction perpendicular to the travelling direction of the welding track trolley (12);
the two transverse guide posts (1243) are arranged in a hollow mode at the end portions of the guide sleeve cross beam (1242), the two transverse guide posts (1243) are respectively connected to the two ends of the guide sleeve cross beam (1242) in a sliding mode, a transverse moving oil cylinder is further arranged in the guide sleeve cross beam (1242), and one end, sleeved in the guide sleeve cross beam (1242), of each transverse guide post (1243) is connected with the output end of each transverse moving oil cylinder;
The steel wheel (1241), steel wheel (1241) articulated in sideslip guide pillar (1243) the other end, just steel wheel (1241) can swing in the horizontal plane, and two sets of steel wheel (1241) can be synchronous or independent sideslip, realize different sideslip displacement.
4. The railway switch welding track equipment according to claim 2, characterized in that a bottom supporting mechanism (125) is arranged at the bottom of the frame (121), the bottom supporting mechanism (125) is arranged below the welding machine (16), and the bottom supporting mechanism (125) can extend and retract to the inside of the frame (121) along the direction perpendicular to the travelling direction of the welding track trolley (12); when the welding rail trolley (12) is in a non-welding state, the bottom supporting mechanism (125) stretches out to support the bottom of the welding machine (16).
5. The railway switch track welding equipment according to claim 2, characterized in that a jacking mechanism is mounted at the bottom end of the supporting leg (123), the jacking mechanism is used for jacking the track welding trolley (12) to be separated from a steel rail, and the jacking mechanism is also used for supporting the track welding trolley (12) after the track welding trolley (12) is separated from the steel rail.
6. The railway switch and track arrangement of claim 2, wherein said longitudinal telescopic means (122) comprises:
The pump station longitudinal telescopic device (1221) is positioned on one side of the frame (121), and the welding machine pump station (127) and the control cabinet are arranged on a support frame on the side;
The intermediate frequency power supply cabinet (128) and the cold water machine (129) are arranged on a support frame on the side.
7. The railroad switch rail apparatus of claim 1, further comprising:
The plurality of flat cars (2) are linked and then grouped;
the tractor is connected to the flat car (2);
The flat car cranes (21) are loaded on each flat car (2), and the flat car cranes (21) are used for carrying out lifting operation on the welding rail trolleys (12);
The excavator (11) and the welding rail trolley (12) are arranged on one flat car (2) in the marshalling.
8. Railway switch and track welding equipment according to claim 1, characterized in that said excavator (11) comprises:
a dig machine platform (111), a cab (1111) is arranged on the dig machine platform (111);
The excavator comprises an excavator chassis (112), wherein a rotating device (1123) is arranged on the excavator chassis (112), the excavator platform (111) is connected with the excavator chassis (112) through the rotating device (1123), and the excavator platform (111) performs rotating motion relative to the excavator chassis (112) through the rotating device (1123);
the excavator chassis (112) comprises crawler running devices (1121) and running steel wheel devices (1122) which are arranged independently of each other, and the running steel wheel devices (1122) are arranged at the head end and the tail end of the excavator chassis (112).
9. The railroad switch rail welding apparatus of claim 8, wherein the power system is mounted on the excavator platform (111), the power system including a battery, a charger, an auxiliary generator, a battery cabinet.
10. The railroad switch rail welding equipment of claim 8, wherein the excavator platform (111) is further mounted with a hydraulic system and an electrical system;
When the welding track trolley (12) performs welding operation, the electrical system is connected with the electric equipment on the excavator (11) and the welding track trolley (12), and the electrical system is used for providing electrical control for the electric equipment on the excavator (11) and the welding track trolley (12).
11. A construction method of railway turnout rail welding equipment is characterized in that, a railroad switch rail apparatus comprising any one of claims 1-10, comprising the steps of:
S101, driving the excavator (11) to one flat car (2) in a group through a tool support pad, reinforcing and locking, placing the track welding trolley (12) on the flat car (2) at one side of the excavator (11), reinforcing and locking with the flat car (2), and driving a turnout paving vehicle into a pre-paving place after the turnout components are loaded on the rest flat cars (2);
S102, relieving reinforcement locking between the excavator (11) and the flat car (2), wherein the excavator (11) adopts a tooling support pad for getting off;
S103, relieving reinforcement locking between the welding rail trolley (12) and the flat car (2), and lifting the welding rail trolley (12) and the welding machine (16) to the vicinity of a pre-paved fork by a flat car crane (21);
s104, the turnout paving vehicle is regrouped and driven away from the pre-paving site;
S105, the welding rail trolley (12) moves to a welding joint, the welding rail trolley (12) is connected with the excavator (11) through a cable, the longitudinal expansion device (122) is opened, and the bottom supporting mechanism (125) is retracted;
S106, the supporting legs (123) vertically descend to prop against the sleeper or between the sleepers, so that the running steel wheels (124) are separated from the steel rails;
S107, hanging the welding machine (16) to a welding point through the welding machine hanging device (126) and performing position fine adjustment, wherein after the welding machine (16) is aligned to a welding joint, welding operation is performed;
s108, after the welding work of one welding joint is completed, the bottom supporting mechanism (125) stretches out, the welding machine lifting device (126) lifts the welding machine (16) to the bottom supporting mechanism (125) for fixing, the supporting leg (123) is retracted, the longitudinal telescopic device (122) is retracted, the welding rail trolley (12) moves to the next welding joint through the travelling steel wheel (124), or the welding rail trolley (12) is lifted to the next welding joint by the lifting hook (113) of the excavator (11);
s109, repeating the steps S106-108 until all welding operations are completed;
S110, after all welding operations are completed, the bottom supporting mechanism (125) stretches out, the welding machine lifting device (126) lifts the welding machine (16) to be fixed on the bottom supporting mechanism (125), the supporting legs (123) are retracted, the longitudinal telescopic device (122) is retracted, a section of flat car (2) is added in a turnout paving vehicle marshalling mode, then the flat car crane (21) lifts the welding rail trolley (12) onto the flat car (2) and performs reinforcement locking, and the excavator (11) adopts a tooling support pad to lift the trolley, loads the tooling support pad onto the flat car (2) and performs reinforcement locking, and the turnout paving vehicle marshalling is driven away from an operation interval.
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CN113210957A (en) * | 2021-03-19 | 2021-08-06 | 常州市瑞泰工程机械有限公司 | Welding operation cabin of steel rail welding operation vehicle and steel rail welding operation vehicle |
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CN202701654U (en) * | 2012-08-06 | 2013-01-30 | 珠海启世机械设备有限公司 | Rotary type crane of rail welding machine |
JP2015058460A (en) * | 2013-09-20 | 2015-03-30 | デンゲン株式会社 | Truck device for welder |
ES2561928B1 (en) * | 2014-04-11 | 2017-01-04 | Ferrovial Agroman, S.A. | Railroad track assembly procedure |
CN208378241U (en) * | 2018-05-02 | 2019-01-15 | 绍兴南特起重设备有限公司 | A kind of gate-type lifting hoisting trolley device for assemble welding |
CN113802421A (en) * | 2021-08-18 | 2021-12-17 | 中国铁建高新装备股份有限公司 | Railway turnout replacing operation system and operation method |
CN113579412B (en) * | 2021-08-18 | 2022-07-29 | 广州智秦工业装备有限公司 | Automatic circumference welding machine for welding oil collecting pipe and radiating fin |
CN115958344A (en) * | 2023-02-10 | 2023-04-14 | 中国铁建高新装备股份有限公司 | Railway switch welds rail car |
CN117071340A (en) * | 2023-08-07 | 2023-11-17 | 中国铁建高新装备股份有限公司 | Switch rail welding operation vehicle and operation method thereof |
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CN107761486A (en) * | 2016-08-15 | 2018-03-06 | 中国铁建高新装备股份有限公司 | A kind of big part quick-replaceable engineering method of railway switch and its corresponding equipment |
CN113210957A (en) * | 2021-03-19 | 2021-08-06 | 常州市瑞泰工程机械有限公司 | Welding operation cabin of steel rail welding operation vehicle and steel rail welding operation vehicle |
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