CN114892460A - Steel rail laser cladding repair and post-treatment equipment - Google Patents
Steel rail laser cladding repair and post-treatment equipment Download PDFInfo
- Publication number
- CN114892460A CN114892460A CN202210459148.6A CN202210459148A CN114892460A CN 114892460 A CN114892460 A CN 114892460A CN 202210459148 A CN202210459148 A CN 202210459148A CN 114892460 A CN114892460 A CN 114892460A
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- Prior art keywords
- lead screw
- laser
- steel rail
- post
- driving
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 52
- 239000010959 steel Substances 0.000 title claims abstract description 52
- 238000004372 laser cladding Methods 0.000 title claims abstract description 19
- 230000008439 repair process Effects 0.000 title abstract description 14
- 238000003754 machining Methods 0.000 claims description 17
- 238000012805 post-processing Methods 0.000 claims description 12
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 210000003437 trachea Anatomy 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 24
- 230000007547 defect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 229910001651 emery Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- 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
- E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
- E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides steel rail laser cladding repair and post-treatment equipment which comprises a main frame, a laser repair device and a post-treatment device, wherein a positioning groove and a travelling wheel are arranged at the lower end of the main frame, a lifter is arranged on the travelling wheel, the laser repair device comprises a laser processing head, an infrared distance measuring sensor is arranged on the laser processing head, a first driving assembly which drives the laser processing head to move along the X-axis direction, the Y-axis direction and the Z-axis direction and can rotate along the Y-axis direction is arranged on the laser processing head, the post-treatment device comprises a grinding wheel, a driving motor is arranged on the grinding wheel, and a second driving assembly which is used for driving the grinding wheel to be close to or far away from a steel rail is arranged on the driving motor. According to the steel rail laser cladding repair and post-treatment equipment, the distance between the laser working head and the surface of the steel rail is controlled by the infrared distance measuring sensor, four-axis linkage is realized through the first lead screw, the second lead screw, the third lead screw and the turntable, the defects on the surface of the steel rail are repaired on site, and the fourth lead screw is used for controlling the grinding wheel and the steel rail to be ground.
Description
Technical Field
The invention relates to the technical field of rail repair, in particular to a steel rail laser cladding repair and post-treatment device.
Background
Under the actual use condition of high load and high utilization rate, the condition that the volume of the side surface and the surface performance of the rail are damaged under the combined action of various factors such as wheel rolling, sliding friction and vibration impact load can occur, particularly the rail corresponding to a high-speed railway with the speed of more than 200Km/h, the abrasion period is further shortened, the running state of a train is influenced, and even safety accidents can occur. According to the national standard GB/T2585-2021 hot rolled steel rail for railway, the standard dimensions of high-speed and heavy-load steel rails are 25m, 50m and 100m, so that the direct rail replacement can cause the waste of a large amount of materials and high cost, and the method for repairing partial rails can ensure that the whole section of steel rail is normally used.
The laser cladding is a high-efficiency precise cladding preparation process with high energy density and low deformation by taking a laser beam as a heat source. According to the technology, the metal surface is irradiated by the high-intensity laser beam, the laser beam interacts with the metal base material, the metal base material absorbs heat energy to melt and solidify metal to form a surface coating with good fusion, and the surface performance of the base material is improved. The remanufacturing aims of wear resistance, corrosion resistance and resource and energy conservation of the surface of the base material are fulfilled. The laser cladding method is deeply studied in a laboratory by a plurality of researchers on theory and optimization of process parameters. However, most of the existing repairs are performed by taking the top surface as a repair object, and the parts of the worn part of the actual rail, which usually contact with the wheel, include the top surface, the side surface and the bent part, so how to develop a multi-surface, three-dimensional and high-precision repair device for the rail is a problem which needs to be solved urgently by those skilled in the art.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects in the prior art, the invention provides steel rail laser cladding repairing and post-processing equipment.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a rail laser cladding restores and aftertreatment equipment, includes the body frame and locates laser prosthetic devices and aftertreatment device on the body frame, the body frame lower extreme be equipped with rail complex constant head tank and a plurality of and rail complex walking wheel, be equipped with the drive on the walking wheel the constant head tank is close to or keeps away from the riser of rail, laser prosthetic devices is including locating the laser processing head in body frame the place ahead, be equipped with the infrared distance measuring sensor who is used for measuring distance between laser processing head and the rail on the laser processing head, be equipped with the drive laser processing head on the laser processing head and remove and can follow Y axle direction pivoted first drive assembly along X axle, Y axle and Z axle direction, aftertreatment device include with rail appearance complex emery wheel, be equipped with the drive on the emery wheel the axis pivoted driving motor is followed to the emery wheel, be equipped with on the driving motor and be used for the drive the emery wheel is close to or keeps away from the second drive assembly of rail, and a heat radiation port of the driving motor is provided with an air guide pipe arranged towards the direction of the grinding wheel.
The lifter on the travelling wheel is used for controlling the lifting of the main frame, and the travelling wheel can move along the steel rail to drive the equipment to integrally advance or retreat when the main frame is lifted; under the body frame decline state, constant head tank and the rail cooperation on the body frame, the walking wheel receives the influence of frictional force between body frame and the rail can't take the body frame to remove, and laser prosthetic devices and aftertreatment device work that this moment can be stable.
Because the laser processing head is arranged in front of the main frame, the infrared distance measuring sensor arranged on the laser processing head can measure where the steel rail needs to be repaired in the moving process of the travelling wheel; in the laser repairing process, the first driving assembly is matched with the infrared distance measuring sensor to adjust the defocusing amount and the position angle of the laser processing head, so that the top surface, the side surface and the curve section of the steel rail are repaired.
The driving motor is used for driving the grinding wheel to rotate, the second driving assembly drives the grinding wheel to be close to or far away from the steel rail by driving the driving motor to move, the repaired steel rail is ground by controlling the distance between the grinding wheel and the steel rail, and meanwhile, the wind guide pipe is used for guiding the wind of the heat dissipation port of the driving motor to the grinding wheel, so that the grinding dust generated by the grinding wheel is cleaned up.
Further, for the convenience of repairing the rest positions on the steel rail except the bottom surface by the laser processing head, the first driving assembly comprises a turntable, a first lead screw, a second lead screw and a third lead screw, the third lead screw is arranged on the main frame and used for driving the second lead screw to move along the Y-axis direction, the second lead screw is used for driving the first lead screw to move along the X-axis direction, the first lead screw is used for driving the turntable to move along the Z-axis direction, and the turntable is used for driving the laser processing head to rotate along the Y-axis direction.
Furthermore, in order to enable the laser processing head to be arranged in front of the main frame and to be capable of moving along the Y-axis direction when the laser processing head is repaired, the sliding end of the third screw rod is provided with an extension plate used for being connected with the second screw rod.
Furthermore, in order to control the distance between the grinding wheel and the steel rail and polish the repaired steel rail, the second driving assembly comprises a fourth lead screw arranged along the Z-axis direction, the fourth lead screw is fixedly connected with the main frame, and the sliding end of the fourth lead screw is connected with a driving motor on the grinding wheel.
Further, laser prosthetic devices still includes laser generator, be connected with the guiding tube between laser generator and the laser beam machining head, laser beam machining head one side is equipped with the protection trachea with laser beam machining head simultaneous movement. The laser generator is connected with the laser processing head through a guide pipe, and the protective gas pipe is a gas supply pipe for protective gas.
Further, fixedly connected with the backup pad that the level set up on the body frame, placed in the backup pad laser generator, be equipped with a plurality of limiting plates that are used for restricting the laser generator position in the backup pad. The limiting plate is arranged to limit the position of the laser generator, the heat dissipation of the laser generator is not blocked, and the normal work of the laser generator is ensured.
Preferably, for the convenience of fixing the laser generator, the limiting plate is detachably connected with the supporting plate, and the height of the limiting plate is not more than 2 cm. The limiting plates in two or three directions can be installed firstly, then the laser generator is installed and placed in the corresponding position, and finally the installation of the rest limiting plates is completed; the height of the limiting plate is not more than 2cm, so that the position of the laser generator can be fixed, and the influence on heat dissipation of the laser generator is avoided.
Further, the lifter is a hydraulic cylinder, one end of the hydraulic cylinder is connected with the traveling wheel, and the other end of the hydraulic cylinder is connected with the supporting plate. The main frame is controlled to rise or fall through the extension or contraction of the hydraulic cylinder, and whether the equipment is in a moving state or a repairing working state is determined.
The invention has the beneficial effects that: according to the steel rail laser cladding repair and post-treatment equipment, the distance between the laser working head and the surface of the steel rail is controlled by the infrared distance measuring sensor on the laser processing head, four-axis linkage is realized through the first lead screw, the second lead screw, the third lead screw and the turntable, and the defects on each surface of the steel rail are repaired on site; the distance between the grinding wheel and the surface of the steel rail is controlled through the fourth lead screw, the shape of the steel rail is controlled, the steel rail repairing precision is guaranteed, air flow of a motor heat dissipation opening is recycled, and abrasive dust generated by grinding of the grinding wheel is cleaned.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is an enlarged schematic view of A of FIG. 1;
FIG. 3 is a front view of the preferred embodiment of the present invention;
FIG. 4 is a side view of the preferred embodiment of the present invention;
FIG. 5 is a schematic view of the construction of the main frame;
in the figure: 1. the main frame, 1-1, constant head tank, 2, the rail, 3, the walking wheel, 3-1, the riser, 4, the laser beam machining head, 5, infrared distance measuring sensor, 6, the emery wheel, 7, driving motor, 7-1, the guide duct, 8, the carousel, 9, first lead screw, 10, the second lead screw, 11, the third lead screw, 12, extension board, 13, the fourth lead screw, 14, laser generator, 15, the guide duct, 16, the protection trachea, 17, the backup pad, 18, the limiting plate.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.
As shown in fig. 1-5, the steel rail laser cladding repairing and post-processing device of the invention comprises a main frame 1, and a laser repairing device and a post-processing device which are arranged on the main frame 1, wherein the lower end of the main frame 1 is provided with a positioning groove 1-1 matched with a steel rail 2 and a plurality of travelling wheels 3 matched with the steel rail 2, the travelling wheels 3 are provided with hydraulic cylinders for driving the positioning groove 1-1 to be close to or far from the steel rail 2, the laser repairing device comprises a laser processing head 4 arranged in front of the main frame 1, the laser processing head 4 is provided with an infrared distance measuring sensor 5 for measuring the distance between the laser processing head 4 and the steel rail 2, the laser processing head 4 is provided with a first driving component for driving the laser processing head 4 to move along the directions of an X axis, a Y axis and a Z axis and capable of rotating along the direction of the Y axis, the post-processing device comprises a grinding wheel 6 matched with the appearance of the steel rail 2, the grinding wheel 6 is provided with a driving motor 7 for driving the grinding wheel 6 to rotate along the axis, the driving motor 7 is provided with a second driving component for driving the grinding wheel 6 to be close to or far away from the steel rail 2, and a heat radiation opening of the driving motor 7 is provided with an air guide pipe 7-1 arranged towards the grinding wheel 6.
First drive assembly includes carousel 8, first lead screw 9, second lead screw 10 and third lead screw 11, third lead screw 11 is located be used for driving second lead screw 10 and remove along Y axle direction on the body frame 1, second lead screw 10 is used for driving first lead screw 9 and removes along X axle direction, first lead screw 9 is used for driving carousel 8 and removes along Z axle direction, carousel 8 is used for the drive laser beam machining head 4 rotates along Y axle direction. And servo motors are arranged on the turntable 8, the first lead screw 9, the second lead screw 10 and the third lead screw 11, and the servo motors are matched with each other to control the position and the angle of the laser processing head 4.
And an extension plate 12 used for being connected with the second lead screw 10 is arranged on the sliding end of the third lead screw 11.
The second driving assembly comprises a fourth lead screw 13 arranged along the Z-axis direction, the fourth lead screw 13 is fixedly connected with the main frame 1, and the sliding end of the fourth lead screw 13 is connected with the driving motor 7 on the grinding wheel 6.
Laser prosthetic devices still includes laser generator 14, be connected with guide tube 15 between laser generator 14 and the laser beam machining head 4, laser beam machining head 4 one side is equipped with the protection trachea 16 with laser beam machining head 4 simultaneous movement.
The utility model discloses a laser generator 14, including body frame 1, laser generator 14, backup pad 17, laser generator 14 is placed to backup pad 17, be equipped with a plurality of limiting plates 18 that are used for restricting the laser generator 14 position on the backup pad 17. The limiting plate 18 is detachably connected with the supporting plate 17 through screws, and the height of the limiting plate 18 is not more than 2 cm.
The working process is as follows:
when the surface defects of the steel rail 2 occur, firstly, adding alcohol acetone 1: 1, washing. The lifter 3-1 lifts the whole equipment, the positioning groove 1-1 is far away from the steel rail 2, and the whole equipment is pushed to the position of the steel rail 2 to be repaired. Then the lifter 3-1 falls down, and the positioning groove 1-1 is matched with the steel rail 2, so that the main frame 1 and the steel rail 2 are fixed in position.
The controller controls the first lead screw 9, the second lead screw 10, the third lead screw 11 and the servo motor on the turntable 8 to be matched with each other, and the laser working head is adjusted to the surface of the steel rail 2 to be repaired. The cladding material is preset at the defect position through the preset powder, the distance between the laser working head and the steel rail 2 is controlled through the infrared distance measuring sensor 5, the defocusing amount is adjusted, corresponding process parameters are set, and the steel rail 2 is repaired after the repair path is determined.
And after the repair is finished, polishing by using the grinding wheel 6 after the repaired surface is cooled.
Directions and references (e.g., up, down, left, right, etc.) may be used in the present disclosure only to aid in the description of features in the figures. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
In light of the foregoing description of preferred embodiments in accordance with the invention, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. The utility model provides a rail laser cladding restoration and aftertreatment equipment which characterized in that: including body frame (1) and locate laser prosthetic devices and aftertreatment device on body frame (1), body frame (1) lower extreme be equipped with rail (2) complex constant head tank (1-1) and a plurality of with rail (2) complex walking wheel (3), be equipped with the drive on walking wheel (3) constant head tank (1-1) is close to or keeps away from riser (3-1) of rail (2), laser prosthetic devices is including locating laser beam machining head (4) in body frame (1) the place ahead, be equipped with infrared distance measuring sensor (5) that are used for measuring distance between laser beam machining head (4) and rail (2) on laser beam machining head (4), be equipped with drive laser beam machining head (4) on laser beam machining head (4) and remove and can follow Y axle direction pivoted first drive assembly along X axle, Y axle and Z axle direction, the post-processing device comprises a grinding wheel (6) matched with the shape of the steel rail (2), a driving motor (7) for driving the grinding wheel (6) to rotate along the axis is arranged on the grinding wheel (6), a second driving component for driving the grinding wheel (6) to be close to or far away from the steel rail (2) is arranged on the driving motor (7), and an air guide pipe (7-1) arranged towards the grinding wheel (6) is arranged at a heat dissipation opening of the driving motor (7).
2. The steel rail laser cladding repairing and post-processing equipment as claimed in claim 1, wherein: first drive assembly includes carousel (8), first lead screw (9), second lead screw (10) and third lead screw (11), third lead screw (11) are located be used for driving second lead screw (10) on body frame (1) and remove along Y axle direction, second lead screw (10) are used for driving first lead screw (9) and remove along X axle direction, first lead screw (9) are used for driving carousel (8) and remove along Z axle direction, carousel (8) are used for the drive laser beam machining head (4) are rotated along Y axle direction.
3. The steel rail laser cladding repairing and post-processing equipment as claimed in claim 2, wherein: and an extension plate (12) used for being connected with the second lead screw (10) is arranged on the sliding end of the third lead screw (11).
4. The steel rail laser cladding repairing and post-processing equipment as claimed in claim 1, wherein: the second driving assembly comprises a fourth lead screw (13) arranged along the Z-axis direction, the fourth lead screw (13) is fixedly connected with the main frame (1), and the sliding end of the fourth lead screw (13) is connected with a driving motor (7) on the grinding wheel (6).
5. The steel rail laser cladding repairing and post-processing equipment as claimed in claim 1, wherein: laser prosthetic devices still includes laser generator (14), be connected with between laser generator (14) and laser beam machining head (4) guide tube (15), laser beam machining head (4) one side is equipped with protection trachea (16) with laser beam machining head (4) synchronous movement.
6. The steel rail laser cladding repairing and post-processing equipment as claimed in claim 5, wherein: fixed connection has backup pad (17) that the level set up on body frame (1), placed on backup pad (17) laser generator (14), be equipped with a plurality of limiting plate (18) that are used for restricting laser generator (14) position on backup pad (17).
7. The steel rail laser cladding repairing and post-processing equipment as claimed in claim 6, wherein: the limiting plate (18) is detachably connected with the supporting plate (17), and the height of the limiting plate (18) is not more than 2 cm.
8. The steel rail laser cladding repairing and post-processing equipment as claimed in claim 6, wherein: the lifter (3-1) is a hydraulic cylinder, one end of the hydraulic cylinder is connected with the walking wheel (3), and the other end of the hydraulic cylinder is connected with the supporting plate (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210459148.6A CN114892460A (en) | 2022-04-27 | 2022-04-27 | Steel rail laser cladding repair and post-treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210459148.6A CN114892460A (en) | 2022-04-27 | 2022-04-27 | Steel rail laser cladding repair and post-treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114892460A true CN114892460A (en) | 2022-08-12 |
Family
ID=82719162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210459148.6A Pending CN114892460A (en) | 2022-04-27 | 2022-04-27 | Steel rail laser cladding repair and post-treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114892460A (en) |
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| CN211819422U (en) * | 2019-12-16 | 2020-10-30 | 济南轨道交通集团有限公司 | Lifting walking template trolley suitable for construction of curve tunnel |
| CN112405258A (en) * | 2020-11-27 | 2021-02-26 | 吴胜奎 | Multifunctional angle grinder |
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2022
- 2022-04-27 CN CN202210459148.6A patent/CN114892460A/en active Pending
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| US20030034336A1 (en) * | 2001-08-18 | 2003-02-20 | Werner Erlenmaier | Laser machine tool with beam guide |
| CN102864704A (en) * | 2012-10-26 | 2013-01-09 | 石家庄铁道大学 | Device and method for steel rail surface online measurement and laser selective repair |
| EP2808446A1 (en) * | 2013-05-27 | 2014-12-03 | System7-Railsupport GmbH | Device for machining a railway track |
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Application publication date: 20220812 |