CN108457142B - Groove-shaped steel rail preheating and welding integrated equipment - Google Patents
Groove-shaped steel rail preheating and welding integrated equipment Download PDFInfo
- Publication number
- CN108457142B CN108457142B CN201810169812.7A CN201810169812A CN108457142B CN 108457142 B CN108457142 B CN 108457142B CN 201810169812 A CN201810169812 A CN 201810169812A CN 108457142 B CN108457142 B CN 108457142B
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- Prior art keywords
- preheating
- steel rail
- welding
- groove
- induction
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 57
- 239000010959 steel Substances 0.000 title claims abstract description 57
- 238000003466 welding Methods 0.000 title abstract description 61
- 230000006698 induction Effects 0.000 claims abstract description 60
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 230000008439 repair process Effects 0.000 claims abstract description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- 229910000838 Al alloy Inorganic materials 0.000 claims description 9
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- 238000010891 electric arc Methods 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
Classifications
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Induction Heating (AREA)
Abstract
The application provides groove-type steel rail preheating and welding repair integrated equipment, which comprises a rail trolley (5), wherein a water chilling unit (1), an intermediate frequency power cabinet (2), a wire reel (3), an arc welder (4), a transformer (6), an induction coil guiding and clamping mechanism (7), an induction heating coil (8) and a welding gun clamping frame (9) are arranged on the upper portion of the rail trolley (5), the transformer (6) is connected with the induction heating coil (8) in the induction coil guiding and clamping mechanism (7), and the induction coil guiding and clamping mechanism (7) is fixedly connected to one side of the rail trolley (5). The groove-shaped steel rail preheating and welding integrated equipment solves the problem of side grinding of the upper strand steel rail on the small-radius curve section of the groove-shaped steel rail. The equipment can perform preheating and repair welding operation in a one-time long distance, so that the working efficiency is improved, the artificial interference is reduced, and the quality of welding seams is improved.
Description
Technical Field
The invention relates to the field of welding repair of groove-shaped steel rails, in particular to groove-shaped steel rail preheating and welding repair integrated equipment.
Background
The traditional steel rail repair welding adopts the modes of flame preheating before welding and manual arc repair welding. During operation, the rail head of the steel rail to be repaired is subjected to flame preheating, and manual arc welding repair is performed after the standard specified temperature is reached.
The pre-welding flame preheating mode for repair welding can be various modes such as oxygen, acetylene, gas and the like. The related preheating parameters have no technical standard, so the control influence of operators is larger, and the stability is poorer. The manual repair welding is generally performed by adopting a welding rod, so that the welding operation efficiency is low, and the welding quality stability is poor.
The problem with this mode of operation is: 1. when flame is adopted to preheat the steel rail, the relation between the preheating temperature reached by the steel rail and the flame state is large, and the time for reaching the designated temperature is difficult to control; 2. when the steel rail is manually welded and repaired, the welding speed is low, and the quality of a welding and repairing layer is seriously dependent on the operation level of welding personnel.
Meanwhile, the traditional rail repairing technology is only aimed at common rails and is not suitable for groove-shaped rails of urban trams. The groove-shaped track of the tramcar is of an embedded structure, and a filler with poor high temperature resistance exists on the outer side of the rail head, so that the traditional rail head flame preheating cannot be adopted.
Disclosure of Invention
In order to overcome the existing defects, the invention provides a groove-shaped steel rail preheating and welding repair integrated device.
The utility model provides a groove steel rail preheats and weld repair integration equipment, includes the track dolly, track dolly upper portion installation sets up cooling water set, intermediate frequency power cabinet, wire reel, electric arc welder, transformer, induction coil direction fixture, induction heating coil and welder fixture, the inside induction heating coil of induction coil direction fixture is connected to the transformer, and induction coil direction fixture fixed connection is in track dolly one side.
The induction coil guiding and clamping mechanism comprises a walking small wheel, a mounting hinge, an aluminum alloy frame, an insulating mounting plate and a welding gun clamping frame, wherein the aluminum alloy frame is arranged on two sides of the induction coil guiding and clamping mechanism, the insulating mounting plate is arranged in the middle of the induction coil guiding and clamping mechanism, the walking small wheel is arranged at the lower end of the insulating mounting plate, and a spring is arranged between the inner side of the insulating mounting plate and the aluminum alloy frame.
The plurality of small walking wheels are arranged, and the wheel surface of each small walking wheel is in the shape of a groove-shaped rail cambered surface.
The induction heating coil is arranged on the insulating mounting plate, and comprises a multiturn copper tube imitating a groove-shaped rail cambered surface, and a silicon steel sheet is arranged on the multiturn copper tube.
Wherein, induction heating coil upper portion sets up the cooling water mouth, and wherein, the cooling water mouth is a plurality of, and induction heating coil top sets up two copper electrode plates, sets up the insulation board between two copper electrode plates.
The groove-shaped steel rail preheating and welding integrated equipment is compact in structure and high in production efficiency. Solves the side grinding problem of the upper strand steel rail of the small radius curve section of the groove steel rail. The equipment can perform preheating and repair welding operation in a one-time long distance, so that the working efficiency is improved, the artificial interference is reduced, and the quality of welding seams is improved.
Drawings
FIG. 1 is a schematic diagram of a groove steel rail preheating and repair welding integrated device.
Fig. 2 is a schematic diagram of a heating coil of a groove-type steel rail preheating and repairing integrated device.
FIG. 3 is a schematic diagram of the preheating and repair welding positions of the channel rail apparatus.
Fig. 4 is a schematic diagram of an induction coil guiding and clamping mechanism of a groove-type steel rail preheating and welding integrated device.
FIG. 5 is a schematic diagram of the relative positions of the induction coil and the channel steel rail of the channel steel rail preheating and welding integrated equipment.
Detailed Description
The invention provides a groove-type steel rail preheating and welding repair integrated device which is described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 shows, a groove steel rail preheats and weld repair integration equipment, including track dolly 5, track dolly 5 upper portion installation sets up cooling water set 1, intermediate frequency power cabinet 2, wire reel 3, electric arc welder 4, transformer 6, induction coil direction fixture 7, induction heating coil 8 and welder holder 9, induction heating coil 8 inside induction coil direction fixture 7 is connected to transformer 6, connects induction coil direction fixture 7 fixed connection in track dolly 5 one side. The trolley 5 is loaded with other components and moves from left to right on the channel rail 10 at a certain speed. The travelling speed of the trolley is provided by a set of driving mechanism arranged at the bottom of the trolley, and the speed is adjustable at a constant speed.
The preheating system consisting of the medium-frequency power cabinet 2, the transformer 6, the induction heating coil 8 and other parts continuously heats the side groove steel rail of the induction heating coil in the travelling process of the trolley.
Fig. 2 shows that the induction heating coil 8 is arranged on the insulating mounting plate 13, wherein the induction heating coil 8 comprises a multiturn copper tube 18 imitating a groove-shaped rail cambered surface, and a silicon steel sheet 19 is arranged on the multiturn copper tube 18. A plurality of silicon steel sheets 19 are arranged on the multi-turn copper tube 18 to strengthen the induction magnetic field at the cambered surface. The arc surface of the silicon steel sheet 19 is the arc surface of the groove for heating the grooved steel rail, namely the position 20 to be welded and repaired (also the position where the steel rail is most easily worn in field measurement) of the grooved steel rail, as shown in fig. 3.
The upper portion of the induction heating coil 8 is provided with a plurality of cooling water nozzles 17, two copper electrode plates 16 are arranged at the top of the induction heating coil 8, and an insulating plate is arranged between the two copper electrode plates 16.
A plurality of silicon steel sheets 19 are arranged on the multi-turn copper tube 18 to strengthen the induction magnetic field at the cambered surface. The arc surface of the silicon steel sheet 19 is the arc surface of the groove for heating the grooved steel rail, namely the position 20 to be welded and repaired (also the position where the steel rail is most easily worn in field measurement) of the grooved steel rail, as shown in fig. 3.
The induction coil guiding and clamping mechanism 7 comprises a walking small wheel 14, a mounting hinge 11, an aluminum alloy frame 12, an insulating mounting plate 13 and a welding gun clamping frame 9, wherein the aluminum alloy frame 12 is arranged on two sides of the induction coil guiding and clamping mechanism 7, the insulating mounting plate 13 is arranged in the middle of the induction coil guiding and clamping mechanism 7, the walking small wheel 14 is arranged at the lower end of the insulating mounting plate 13, and a spring 21 is arranged between the inner side of the insulating mounting plate 13 and the aluminum alloy frame 12.
The number of the walking small wheels 14 is multiple, and the wheel surface of the walking small wheels 14 is in the shape of a groove-shaped rail cambered surface.
In specific construction, the track trolley is driven by a driving motor, can advance and retreat along the groove-shaped track, and the advancing speed of the track trolley can be freely adjusted within 0-8 mm/s. Before preheating and repair welding, the trolley is required to travel a small distance along the track, and the clamping position of the welding gun and the distance between the preheating coil and the arc surface to be repaired of the groove-shaped steel rail are observed and adjusted. After the adjustment is finished, the output power (adjustable range is 0-80 KW) of the induction heating power supply and the wire feeding speed of the arc welding are set according to the set forward or backward speed of the trolley. After all the settings are completed, the induction heating power supply and the track trolley are started, the induction coil starts to heat the groove-shaped steel rail, and after the whole machine walks for a short period of time (about 20s, the specific time changes according to the walking speed set by the trolley), the arc welder is started to carry out welding repair operation. The heating power supply is started firstly, so that the steel rail needs to be heated for a period of time, the subsequent part to be welded can reach the expected preheating temperature, and the quality of the welding repair operation can be ensured. Through the steps, long-distance continuous preheating and repair welding operation can be realized on the groove-shaped steel rail.
In the travelling process of the trolley, the preheating system firstly heats the groove cambered surface of the groove-shaped steel rail, and when the trolley continues to move, the welding gun clamping frame 9 and the electric welding gun arranged on the welding gun clamping frame move to the groove-shaped steel rail with a certain temperature, and the welding repair system starts welding operation. In the travelling process of the trolley, the whole machine can continuously perform the operation process of preheating firstly and then repairing by welding along the axial direction of the side groove type steel rail of the induction heating coil, and finally a long welding line along the axial direction of the steel rail is obtained.
Before preheating and repair welding, the groove-shaped steel rail to be repaired needs to be polished before removing dust, cracks and the like; after the operation is completed, the welded repair part is required to be post-polished to ensure the appearance of the steel rail. In addition, after the equipment finishes the preheating and welding repair operation of one section of groove-shaped steel rail, if another track operation is needed, the whole equipment is rotated 180 degrees, and then the trolley is reversely walked.
As shown in fig. 4 and 5, in order to ensure the stability of the preheating and repair welding positions, the welding gun and the induction coil guiding and clamping mechanism 7 are designed without shaking left and right and up and down along with the traveling of the trolley. The small walking wheel 14 is designed into a groove-shaped rail cambered surface shape, and a spring 21 is arranged on the side surface of the small walking wheel to provide certain side thrust, so that the small walking wheel is tightly attached to the steel rail in the horizontal direction during walking. In addition, the vertical direction is tightly attached to the steel rail when the small walking wheel 14 walks by means of the dead weight of the whole welding gun and the induction coil guiding and clamping mechanism 7.
The two travelling small wheels 14, the welding gun clamping frame 9 and the induction heating coil 8 are fixed on an insulating mounting plate 13, and have a certain degree of freedom with the rail car 5 in the horizontal and up-down directions. When the track trolley 5 slightly shakes, the walking small wheel 14 drives the welding gun clamping frame 9 and the induction heating coil 8 to carry out self-adjustment by taking the groove cambered surface of the groove-shaped steel rail as a reference, so that the stability of the preheating and repair welding positions is ensured.
In the whole operation process, the induction coil and the water-cooling welding gun are fixed on one side of the rail trolley by a matched guide clamping mechanism, and the distance between the induction coil and the water-cooling welding gun is adjustable. However, under the same process condition, the distance between the two will be constant. In addition, the guiding and clamping mechanism depends on the guiding wheels and the springs thereof in the travelling process of the trolley to ensure the relative fixation of the welding gun and the heating coil and the part to be welded of the groove-shaped steel rail in the operation process.
The invention has the advantages that the rail head of the groove-type steel rail is preheated by adopting the mode of medium-frequency induction electric preheating, so that the heating temperature of the part to be welded is very stable and the repeatability is high under the condition of the same technological parameters. For the repair welding of steel rails, the preheating temperature directly influences the success and failure of repair welding. Therefore, the quality of steel rail repair welding can be greatly improved through an electric induction preheating mode. For the groove-type steel rail repair welding, the type of rail damage is mainly rail head side grinding of a small curve radius part of the rail, and the part to be repaired is long at one time. Therefore, the trolley walks on the rail to preheat the groove-shaped steel rail for a long distance at one time, and the operation efficiency is greatly higher than that of the traditional preheating mode.
Through the design of welder and induction coil direction fixture, guaranteed when the travelling of track dolly, welder and induction heating coil can stabilize and preheat and weld the fixed cambered surface of repair groove shaped steel rail.
Finally, it should be noted that the above embodiments are only intended to describe the technical solution of the present invention and not to limit the technical method, the present invention extends to other modifications, variations, applications and embodiments in application, and therefore all such modifications, variations, applications, embodiments are considered to be within the spirit and scope of the teachings of the present invention.
Claims (4)
1. The utility model provides a groove steel rail preheats and weld repair integration equipment, includes track dolly (5), track dolly (5) upper portion installation sets up cooling water set (1), intermediate frequency power cabinet (2), wire reel (3), electric arc welder (4), transformer (6), induction coil guiding fixture (7), induction heating coil (8) and welder holder (9), a serial communication port, induction coil guiding fixture (7) inside induction heating coil (8) are connected to transformer (6), induction coil guiding fixture (7) fixed connection is in track dolly (5) one side, induction coil guiding fixture (7) are including walking steamboat (14), installation hinge (11), aluminum alloy frame (12), insulating mounting panel (13) and welder holder (9), and wherein, induction coil guiding fixture (7) both sides set up aluminum alloy frame (12), and insulating mounting panel (13) set up in induction coil guiding fixture (7) middle part, and insulating mounting panel (13) lower extreme sets up walking steamboat (14), wherein, sets up spring (21) between insulating mounting panel (13) inboard and aluminum alloy frame (12).
2. The integrated equipment for preheating and repairing welded steel rails according to claim 1, wherein the number of the small walking wheels (14) is multiple, and the tread of the small walking wheels (14) is in the shape of a cambered surface of the grooved rail.
3. The integrated equipment for preheating and repairing welded steel rails according to claim 1, wherein the induction heating coil (8) is arranged on an insulating mounting plate (13), wherein the induction heating coil (8) comprises a multi-turn copper pipe (18) imitating a cambered surface of the grooved rail, and a silicon steel sheet (19) is arranged on the multi-turn copper pipe (18).
4. The integrated equipment for preheating and repairing welded steel rail according to claim 1, wherein a cooling water nozzle (17) is arranged at the upper part of the induction heating coil (8), wherein two copper electrode plates (16) are arranged at the top of the induction heating coil (8), and an insulating plate is arranged between the two copper electrode plates (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810169812.7A CN108457142B (en) | 2018-03-01 | 2018-03-01 | Groove-shaped steel rail preheating and welding integrated equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810169812.7A CN108457142B (en) | 2018-03-01 | 2018-03-01 | Groove-shaped steel rail preheating and welding integrated equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108457142A CN108457142A (en) | 2018-08-28 |
| CN108457142B true CN108457142B (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810169812.7A Active CN108457142B (en) | 2018-03-01 | 2018-03-01 | Groove-shaped steel rail preheating and welding integrated equipment |
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| Country | Link |
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| CN (1) | CN108457142B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114059405B (en) * | 2021-12-10 | 2023-09-01 | 株洲三龙特种精密铸造有限公司 | Be used for high-efficient seamless welding set of track |
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Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015156243A1 (en) * | 2014-04-08 | 2015-10-15 | 新日鐵住金株式会社 | Heat treatment device, heat treatment method, and rail steel |
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|---|---|---|---|---|
| CN2575109Y (en) * | 2002-08-12 | 2003-09-24 | 郑体成 | Coal-saving device pipe for spraying composite coating with supersonic speed arc spraying equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108457142A (en) | 2018-08-28 |
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