CN114934414A - Online repairing method for railway turnout and rail car - Google Patents
Online repairing method for railway turnout and rail car Download PDFInfo
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- CN114934414A CN114934414A CN202210461632.2A CN202210461632A CN114934414A CN 114934414 A CN114934414 A CN 114934414A CN 202210461632 A CN202210461632 A CN 202210461632A CN 114934414 A CN114934414 A CN 114934414A
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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
- E01B31/12—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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- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses an online repairing method of a railway turnout and a rail car, relating to the technical field of rail maintenance and comprising the following steps: carrying out full rail contour milling and top surface grinding on the steel rail on the non-fork center side; dividing the steel rail on the fork center side into sections, and performing milling and repairing in different modes on each section; the rail car with a plurality of grinding or milling cutter combination is adopted, the milling operation mode is adopted in the areas such as the straight basic rail, the curved basic rail of the turnout, the front and rear straight line sections of the turnout, the grinding operation mode is adopted near the frog, the movable point rail and the point rail, the increase of the full-rail-profile operation interval of the steel rail in the frog center area is improved, the trouble between turnout sections is repaired by one or more operations, the repairing effect is good, the energy consumption is low, the operation efficiency is high, and the working environment is good.
Description
Technical Field
The invention belongs to the technical field of rail maintenance, and particularly relates to an online repairing method of a railway turnout and a rail car.
Background
The turnout milling and grinding vehicle is turnout on-line repairing equipment, improves the quality of steel rails between turnout sections in a mode of combining milling and grinding, prolongs the service life of turnout, and ensures the safety and comfort of driving.
The turnout is polished by adopting a group of grinding wheels, and the turnout is polished by setting different deflection angles and fixed points of the grinding wheels to descend and lift the grinding wheels at the fork center side. The grinding wheel occupies a large space, the grinding section of the fork center area is limited, the steel rail in a part of sections cannot be ground in the whole rail profile, and the repairing effect is poor. The grinding wheels are small in quantity, the turnout interval is serious in damage, the profile needs to be repeatedly ground, the energy consumption is high, the operation efficiency is low, and the working environment is poor.
Disclosure of Invention
The invention aims to provide an on-line repairing method of a railway turnout and a rail car, aiming at the defects in the prior art, the rail car with a plurality of grinding or milling cutter combinations is adopted, the milling operation mode is adopted in the areas of straight basic rails, curved basic rails, front and rear straight line sections of the turnout and the like, the grinding operation mode is adopted near a frog, a movable point rail and a switch rail, the full-rail-profile operation interval of a steel rail in the area of the frog center is increased, the turnout interval diseases are repaired by one or more operations, the repairing effect is good, the energy consumption is low, the operation efficiency is high, and the working environment is good.
In order to achieve the purpose, the invention provides an online repairing method of a railway turnout, which comprises the following steps:
carrying out full-rail contour milling and top surface grinding on the steel rail on the non-fork center side;
and carrying out interval division on the steel rail on the side of the fork center, and carrying out milling and grinding repair in different modes on each interval.
Optionally, the full-rail profile milling mode adopts a circumferential milling technology, and the full-rail profile milling includes milling and repairing the range of 87 degrees to 10 degrees outside the rail head on the non-fork side.
Optionally, the top surface grinding mode adopts a circumferential grinding technology, and the top surface grinding mode comprises milling and repairing of the range of 25 degrees to 10 degrees outside the top inner side of the non-forked side.
Optionally, the partitioning the steel rail on the side of the fork center includes:
dividing a position outside 25m behind the forked root and overlapping the two strands of the fork into a first interval;
dividing the position where the two strands of the fork center are overlapped to the position where the width of the top of the fork center is 50mm into a second interval;
dividing the position from the position with the width of 50mm at the top of the fork center to the position with the width of 100mm in front of the throat into a third interval;
dividing the position from the position 100mm in front of the throat to the position where the switch rail and the stock rail start to be jointed into a fourth interval;
dividing a position where the switch rail and the stock rail start to be jointed to a position where the width of the top of the switch rail is 20mm into a fifth interval;
dividing the point rail from the point rail top with the width of 20mm to the point rail tip into a sixth interval;
and dividing the point to the front 25m of the switch point stock rail into a seventh section.
Optionally, the steel rails in the first section, the fourth section and the seventh section are milled and repaired in a combined manner of full-rail profile milling and top surface grinding.
Optionally, the number of times of milling and repairing by adopting the combination of the full-orbit contour milling and the top surface grinding is 1.
Optionally, the steel rails in the second section and the fifth section are milled and repaired in a side grinding manner, and the steel rails in the third section and the sixth section are not milled and repaired.
Optionally, the side grinding mode adopts a circumferential grinding technology, and the side grinding mode includes milling and repairing the side part inner side of the fork core side within the range of 70-25 degrees.
Optionally, the number of times of milling and repairing by adopting the side grinding mode is not less than 1.
The invention also provides an online repairing rail car for the railway turnout, wherein a plurality of grinding cutters or a plurality of milling cutter combinations are arranged on the online repairing rail car for the railway turnout, and the online repairing rail car for the railway turnout can execute the online repairing method for the railway turnout.
The invention provides an online repairing method of a railway turnout and a rail car, which have the beneficial effects that:
1. the method comprises the following steps that a full-rail-profile operation interval of a fork center area exceeds a turnout grinding full-rail-profile operation interval specified by TB/T2658.22-2010, an interval from a position with a clear distance of 100mm between two adjacent rails on a straight side strand behind the fork center to a superposed position of the two rails on the fork center is divided into a first interval, an interval from a position with a clear distance of 100mm between a switch rail and a stock rail to a position where the switch rail and the stock rail start to be jointed is divided into a fourth interval, and all the sections are milled and repaired by adopting a combination mode of full-rail-profile milling and top surface grinding;
2. the multi-combination repairing method is flexible in operation and is suitable for the diversity of turnout forms;
3. the milling and repairing are carried out by adopting a combined mode of the full-rail contour milling and the top surface grinding, only 1 time of repairing is needed, the repairing precision is high, the energy consumption is low, and the operation efficiency is improved;
4. the milling repair has no dust, the circumferential grinding of the rail top and the rail side is less in dust and has no splash, and the working environment is good;
5. and (4) performing interval division on the rail at the fork center side, and accurately controlling the point of the rail in an external control mode.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 shows a schematic distribution of the individual sections of the rail on the fork side according to one embodiment of the invention.
Fig. 2 shows an enlarged view at a of fig. 1.
Fig. 3 shows an enlarged view at B of fig. 1.
Description of reference numerals:
1. a first interval; 2. a second interval; 3. a third interval; 4. a fourth interval; 5. a fifth interval; 6. a sixth interval; 7. and a seventh interval.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides an online repairing method of a railway turnout, which comprises the following steps:
carrying out full-rail contour milling and top surface grinding on the steel rail on the non-fork center side;
and (4) carrying out interval division on the steel rail on the fork center side, and carrying out milling and grinding repair in different modes on each interval.
Specifically, in the process of repairing the railway turnout, milling and repairing are carried out in different modes aiming at the rails on the non-fork side and the fork side, and the milling modes of milling the full-rail profile and grinding the top surface are carried out on the non-fork side, so that the repairing precision is high, the energy consumption is low, and the operating efficiency is improved; on the fork center side, when the repairing space is limited, the inter-partition sectional repairing is adopted, and the combined operation of various repairing methods is adopted, so that the turnout joint repairing method is suitable for the diversified structure of the turnout and the repairing quality is improved.
Optionally, the full-rail profile milling mode adopts a circumferential milling technology, and the full-rail profile milling comprises milling and repairing the range of 87 degrees to 10 degrees outside the inner side of the rail head on the non-center-of-fork side.
Specifically, the full-rail profile milling mode adopts a circumferential milling technology to mill and mill the rail head position, the repair range is 87 degrees at the inner side to 10 degrees at the outer side, and the circumferential milling technology has the advantages of high processing efficiency, capability of being combined with other processing technologies and the like.
Optionally, the top surface grinding mode adopts a circumferential grinding technology, and the top surface grinding mode comprises milling and repairing of the range of 25 degrees to 10 degrees outside the top part of the non-forked side.
Specifically, the top surface grinding mode also adopts a circumferential grinding technology, but the milling position is the top, the repairing range is between 25 degrees and 10 degrees of the inner side and the outer side, the pressure of the circumferential grinding technology on the surface of the workpiece is larger than that of the end surface grinding on the surface of the steel rail workpiece, and the repairing effect is more obvious; and the full-rail profile milling mode and the top surface grinding mode are respectively adopted for different positions of the non-fork center side rail, so that the repairing precision is high, the energy consumption is low, and the repairing operation efficiency is greatly improved.
Optionally, the sectioning the rail on the side of the center of fork includes:
dividing a position where two beams coincide from the position 25m behind the forked root to the fork center into a first interval;
dividing a position from the superposition position of the two strands of the fork center to the position with the width of 50mm of the top of the fork center into a second interval;
dividing the part from the position with the width of 50mm at the top of the fork center to the position with the width of 100mm in front of the throat into a third interval;
dividing the place 100mm before the throat to the joint of the switch rail and the stock rail into a fourth interval;
dividing a position where the switch rail and the stock rail start to be jointed to a position where the width of the top of the switch rail is 20mm into a fifth interval;
dividing the position from the point rail top with the width of 20mm to the point rail tip into a sixth interval;
the section from the point of the switch rail to the front 25m of the switch point stock rail is divided into a seventh section.
Concretely, to the restoration of the rail of fork center side, at first carry out the interval and divide, 25m outside behind the root of a fork, fork center two strands of coincidence department, fork center top width 50mm department, 100mm department in front of the throat, switch rail and stock rail begin to laminate the department, switch rail top width 20mm department, switch rail point department, switch point stock rail front 25m punishment do not sets up to A, B, C, D, E, F, G, H points, every two adjacent points form an interval, because the space of polishing in different intervals is different, prosthetic position and angle are also different, adopt different restoration modes and the number of times of polishing, improve the rail quality of fork center side, it is effectual to restore, the energy consumption is low, the operating efficiency is high, can also guarantee operational environment's good.
Optionally, the steel rails in the first section, the fourth section and the seventh section are milled, ground and repaired in a combined mode of full-rail profile milling and top surface grinding.
Specifically, the area between the fork center coincidence department and the point rail point department, namely the first interval and the seventh interval, in addition, the one end area between the fork center coincidence department and the point rail point department, namely the fourth interval, is started from the position 25 meters away from the fork root and the fork point, and the combined mode of full-rail profile milling and top surface grinding is adopted for milling and grinding according to the actual grinding space and the repair standard required to be achieved, so that the difficulty of grinding is reduced, and the operation efficiency is improved.
Optionally, the number of times of milling and repairing by adopting a combination of full-orbit contour milling and top surface grinding is 1.
Specifically, the inner side 87 degrees to the outer side 10 degrees of the rail head position are repaired at one time by adopting a full rail profile milling mode, and the inner side 25 degrees to the outer side 10 degrees of the rail head position are repaired at one time by adopting a top surface grinding mode, so that the repairing quality requirement of the railway turnout can be met, and the energy consumption is greatly reduced.
Optionally, the steel rails in the second section and the fifth section are milled and repaired in a side grinding mode, and the steel rails in the third section and the sixth section are not milled and repaired.
Specifically, a side grinding mode is adopted according to the actual grinding space and the required repair standard between a fork center section with the width of 50mm from the superposition position of two fork centers and a switch rail section with the width of 20mm from the joint position of a switch rail stock rail; milling and repairing are not needed between the cross section of the fork center with the top width of 50mm and 100mm in front of the throat and between the cross section of the switch rail with the top width of 20mm and the tip of the switch rail, so that the repairing cost and the repairing time are greatly reduced. Optionally, the side grinding mode adopts a circumferential grinding technology, and the side grinding mode comprises milling and repairing the range of 70-25 degrees from the inner side of the side part on the fork center side.
Specifically, the side surface grinding mode adopts a circumferential grinding technology, the side part position of the fork center side is milled and ground, the repairing range is 70 degrees to 25 degrees on the inner side, the circumferential grinding process has the characteristics of high efficiency and large pressure on the surface of a workpiece, and the operation efficiency is improved.
Optionally, the number of times of milling and repairing by adopting a side grinding mode is not less than 1.
Specifically, the inner side of the side part of the fork center side is repaired for multiple times from 70 degrees to 25 degrees by adopting a side grinding mode, so that the repairing requirement of the railway turnout can be met.
The invention also provides an online repairing rail car for the railway turnout, wherein a plurality of grinding cutters or a plurality of milling cutter combinations are arranged on the online repairing rail car for the railway turnout, and the online repairing rail car for the railway turnout can execute the online repairing method for the railway turnout.
Specifically, the form that a plurality of cutter or the cutter combination of milling and grinding is adopted to the railcar of restoreing on line, the operation mode that mills and grinds is adopted in areas such as straight stock rail, curved stock rail and the front and back straight line section of switch at the switch, the operation mode of polishing is adopted at the rail of non-centre of fork side and centre of fork side, promote the whole rail profile operation interval of increase centre of fork side rail, restore the interval virus of switch, it is effectual to restore, consume the energy low, the operating efficiency improves, good control operational environment.
Examples
As shown in fig. 1 to 3, the present invention provides an online repairing method for a railway switch, including:
carrying out full rail contour milling and top surface grinding on the steel rail on the non-fork center side;
and (4) carrying out interval division on the steel rail on the fork center side, and carrying out milling and grinding repair in different modes on each interval.
In the embodiment, the full-rail profile milling mode adopts a circumferential milling technology, and the full-rail profile milling comprises milling and repairing the range of 87 degrees to 10 degrees outside the rail head on the non-fork side.
In the embodiment, the top surface grinding mode adopts a circumferential grinding technology, and the top surface grinding mode comprises the step of carrying out milling and repairing on the range of 25-10 degrees of the inner side to the outer side of the top part of the non-forked side.
In this embodiment, the section division of the rail on the center of the fork side includes:
dividing a position where two beams coincide from the position 25m behind the forked root to the fork center into a first interval 1;
dividing a position where the two strands of fork centers are overlapped to a position where the width of the top of the fork center is 50mm into a second interval 2;
dividing the position from the position with the width of 50mm at the top of the fork center to the position with the width of 100mm in front of the throat into a third interval 3;
dividing a place 100mm before a throat to a joint of the switch rail and the stock rail into a fourth interval 4;
dividing a position where the switch rail and the stock rail start to be jointed to a position where the width of the top of the switch rail is 20mm into a fifth interval 5;
dividing the position from the point rail top with the width of 20mm to the point rail tip into a sixth interval 6;
the point to the front 25m of the switch point stock rail is divided into a seventh section 7.
In this embodiment, the steel rails in the first section 1, the fourth section 4 and the seventh section 7 are milled and repaired by a combination of full-rail profile milling and top surface grinding.
In this embodiment, the number of times of milling and repairing by a combination of full-orbit contour milling and top surface grinding is 1.
In this embodiment, the rails in the second section 2 and the fifth section 5 are milled and repaired by a side grinding method, and the rails in the third section 3 and the sixth section 6 are not milled and repaired.
In the embodiment, the side grinding mode adopts a circumferential grinding technology, and the side grinding mode comprises the step of carrying out milling and repairing on the inner side of the side part at the fork center side within the range of 70-25 degrees.
In this embodiment, the number of times of milling and repairing by the side grinding method is not less than 1.
The invention also provides an online repairing rail car for the railway turnout, wherein a plurality of grinding cutters or a plurality of milling cutter combinations are arranged on the online repairing rail car for the railway turnout, and the online repairing rail car for the railway turnout can execute the online repairing method for the railway turnout.
In conclusion, when the railway turnout is repaired, the online repairing rail car with a plurality of grinding tools or a plurality of milling tools is adopted, the combination mode of full-rail profile milling and top surface grinding is adopted in the whole process of the rail on the non-fork side, and one-time repairing operation is carried out, the section of the rail on the fork side is repaired, the combined mode of full-rail profile milling and top surface grinding is also adopted in the first section 1, the fourth section 4 and the seventh section 7 for milling and repairing, the side surface grinding mode is adopted in the second section 2 and the fifth section 5 for milling and repairing, the repairing effect is good, the energy consumption is low, the operation efficiency is greatly improved, and the good working environment can be ensured.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. An online repairing method for a railway turnout is characterized by comprising the following steps:
carrying out full-rail contour milling and top surface grinding on the steel rail on the non-fork center side;
and carrying out interval division on the steel rail on the side of the fork center, and carrying out milling and grinding repair in different modes on each interval.
2. The method for on-line repairing of railway turnout junction according to claim 1, wherein the full-rail profile milling mode adopts a circumferential milling technology, and the full-rail profile milling comprises milling and repairing the range of 87 degrees to 10 degrees from the inner side to the outer side of the rail head on the non-center-of-fork side.
3. The method for on-line repairing of railway turnout junction according to claim 1, wherein the top surface grinding mode adopts a circumferential grinding technology, and the top surface grinding mode comprises milling repair of the top inner side of the non-fork center side within the range of 25 degrees to 10 degrees from the outer side.
4. The method for on-line repairing of a railway switch according to claim 1, wherein the section division of the rail on the side of the fork center comprises:
dividing a position where two beams coincide from the position 25m behind the forked root to the fork center into a first interval;
dividing the position where the two strands of the fork center are overlapped to the position where the width of the top of the fork center is 50mm into a second interval;
dividing the position from the position with the width of 50mm at the top of the fork center to the position with the width of 100mm in front of the throat into a third interval;
dividing the place 100mm before the throat to the joint of the switch rail and the stock rail into a fourth interval;
dividing a position from the joint of the switch rail and the stock rail to the position with the width of 20mm of the top of the switch rail into a fifth interval;
dividing the position from the point rail top with the width of 20mm to the point rail tip into a sixth interval;
and dividing the point of the switch rail to the position 25m before the switch point stock rail into a seventh interval.
5. The method for repairing a railway turnout junction on line according to claim 4, wherein the steel rails in the first section, the fourth section and the seventh section are milled and repaired by adopting a combination mode of full rail profile milling and top surface grinding.
6. The method for repairing a railway turnout junction on line according to claim 5, wherein the number of times of milling and repairing by adopting the combination of the full-rail profile milling and the top surface grinding is 1.
7. The method for repairing a railway turnout junction on line according to claim 4, wherein the rails in the second section and the fifth section are milled and repaired in a side grinding mode, and the rails in the third section and the sixth section are not milled and repaired.
8. The method for repairing a railway switch on line as claimed in claim 7, wherein the side grinding mode adopts a circumferential grinding technology, and the side grinding mode comprises milling repair of the side part of the fork center side within the range of 70-25 degrees.
9. The on-line repairing method of the railway turnout according to claim 7, wherein the number of times of milling and repairing by adopting the side grinding mode is not less than 1.
10. An on-line repairing rail car for a railway turnout, which is characterized in that a plurality of grinding cutters or a plurality of milling cutter combinations are arranged on the on-line repairing rail car for the railway turnout, and the on-line repairing rail car for the railway turnout can execute the on-line repairing method for the railway turnout according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210461632.2A CN114934414A (en) | 2022-04-28 | 2022-04-28 | Online repairing method for railway turnout and rail car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210461632.2A CN114934414A (en) | 2022-04-28 | 2022-04-28 | Online repairing method for railway turnout and rail car |
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| Publication Number | Publication Date |
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| CN114934414A true CN114934414A (en) | 2022-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210461632.2A Pending CN114934414A (en) | 2022-04-28 | 2022-04-28 | Online repairing method for railway turnout and rail car |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1185639B (en) * | 1962-02-27 | 1965-01-21 | Hans Schnyder | Device for grinding rails, in particular focal points and wing rails at switches and crossings |
| CN2193227Y (en) * | 1993-12-31 | 1995-03-29 | 尚尔纯 | Movable switch polishing machine |
| CN112458804A (en) * | 2020-11-13 | 2021-03-09 | 中铁物总运维科技有限公司 | Full-coverage profile polishing method for railway turnout by combining large machine with small machine |
| CN113263865A (en) * | 2021-07-20 | 2021-08-17 | 一路行（北京）科技有限公司 | Wheel structure and rail grinding wagon |
| CN114318975A (en) * | 2020-10-11 | 2022-04-12 | 华东交通大学 | Automatic grinding method for turnout |
-
2022
- 2022-04-28 CN CN202210461632.2A patent/CN114934414A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1185639B (en) * | 1962-02-27 | 1965-01-21 | Hans Schnyder | Device for grinding rails, in particular focal points and wing rails at switches and crossings |
| CN2193227Y (en) * | 1993-12-31 | 1995-03-29 | 尚尔纯 | Movable switch polishing machine |
| CN114318975A (en) * | 2020-10-11 | 2022-04-12 | 华东交通大学 | Automatic grinding method for turnout |
| CN112458804A (en) * | 2020-11-13 | 2021-03-09 | 中铁物总运维科技有限公司 | Full-coverage profile polishing method for railway turnout by combining large machine with small machine |
| CN113263865A (en) * | 2021-07-20 | 2021-08-17 | 一路行（北京）科技有限公司 | Wheel structure and rail grinding wagon |
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