EP2337897A1 - Dispositif pour la maintenance de rails - Google Patents
Dispositif pour la maintenance de railsInfo
- Publication number
- EP2337897A1 EP2337897A1 EP09741369A EP09741369A EP2337897A1 EP 2337897 A1 EP2337897 A1 EP 2337897A1 EP 09741369 A EP09741369 A EP 09741369A EP 09741369 A EP09741369 A EP 09741369A EP 2337897 A1 EP2337897 A1 EP 2337897A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rail
- along
- frame
- wheels
- axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012423 maintenance Methods 0.000 title claims description 16
- 230000005484 gravity Effects 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 3
- 238000010891 electric arc Methods 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49718—Repairing
Definitions
- the present invention relates to the maintenance and repair of rail wear, for example rails railroad networks. More specifically, the present invention relates to a device for the repair and maintenance of rails and switches.
- patent EP 1 145 793 describes an arc welding machine for rail maintenance.
- This automaton comprises a frame, a welding apparatus including a torch for welding a rail area, and a control unit.
- This automaton is equipped with two holding means on the rail to be repaired.
- Each of these means may consist of a horizontal bar.
- One end of said bar terminates in a clamp hooking the rail.
- One of the jaws of the clamp passes under the head of the rail, that is to say under the part of the rail that comes into contact with railway vehicles.
- the other end of the horizontal bar is attached to the frame. Said frame is therefore cantilevered relative to the rail, its weight allowing the clamp to remain firmly hooked under the rail head.
- the torch located on a side face of the frame, is vertical to the rail to repair.
- the torch to be welded is provided with displacement means along two axes located in a horizontal plane.
- This mobility in two dimensions makes it possible to record the coordinates of at least three points, defining a rail surface to repair, then to let the automaton carry out this repair.
- clamp-shaped holding means has several disadvantages, particularly related to clamp-shaped holding means.
- two consecutive rails can be secured by at least one alignment splice.
- Such a splint notably takes place along the part of the less thick rail, under the mushroom. The presence of such a splint prevents the use of clamp-shaped holding means, because the location of one end of the clamp is occupied by rediss.
- Another disadvantage is related to the maintenance of switches or switches. Since the welding torch is located on a lateral face of the automaton, it is advisable to position the clamps on both sides of the zone to be repaired. However, such positioning is sometimes made impossible by the specific shapes of the switchgear parts, especially the crossover cores. Also known are rail maintenance devices provided with moving means on said rails such as wheels.
- the documents CH624351 and RU 2253712 describe in particular devices moving by means of wheels bearing on two parallel rails, said wheels being divided into two groups arranged on either side of a vertical plane passing through the center of gravity of said devices. .
- center of gravity is meant the point of intersection of all planes that divide the device into two parts of equal weight.
- the present invention overcomes these disadvantages by changing the arrangement and the holding means of the apparatus.
- the invention therefore relates to a device for the maintenance or repair of rails and track apparatus, said device comprising in particular a frame and means of displacement on a rail, the displacement means comprising two wheels aligned along an axis of movement of the device. along a rail, said device being characterized in that the frame is disposed on the displacement means so that, when the wheels of said device are positioned on a rail, the center of gravity of said device is at the vertical of said rail.
- a device according to the invention is not cantilevered with respect to the rail to be repaired.
- the center of gravity of the device is at the vertical of said rail to fix. This makes it easy to move said device by rolling it along the rail, without the risk of tipping.
- each wheel is provided with two cheeks of substantially annular shape. More preferably, the position of at least one of the two cheeks is adjustable along an axis of the wheel.
- the device is therefore securely held at a specific location of the rail.
- This holding system is particularly suitable for precision work such as arc welding.
- an inner surface of at least one cheek has substantially the shape of a truncated cone of revolution, said surface being intended to come into contact with a rail.
- This frustoconical shape allows the cheek to marry the profile of a classic rail mushroom.
- the truncated cone surface is inclined at an angle of between 1 ° and 15 ° relative to the base of said cone. Even more preferably, the angle is between 2 ° and 5 °.
- FIG. 1 a perspective view of a device according to one embodiment of the invention
- FIG. 1 a sectional view of a wheel of a device as shown in Figure 1.
- FIG. 1 shows a device according to one embodiment of the invention.
- the invention is an arc welding apparatus.
- the invention also relates to other rail maintenance devices, for example grinding devices.
- the device 1 comprises a frame 2, which rests on a frame 3 which it is secured.
- the chassis 3 is provided with two wheels (4,5).
- the wheels (4, 5) are aligned along an axis 6 of displacement of the device 1 along a rail 7 to be repaired.
- One of the advantages of the wheels (4, 5) with respect to the gripper system described in patent EP 1 145 793 is that the positioning of the device 1 is not hindered by the presence of ribs 8 at the junction two rails.
- the frame 2 is disposed on the frame 3 so that, when the wheels (4, 5) are positioned on a rail 7, the center of gravity of the device 1 is vertical to said rail 7.
- the device 1 is not driven by its weight to tilt on either side of the rail 7. This is advantageous for operators likely to move the device 1 by rolling it along the rails to fix. It is also conceivable to motorize the frame 3 for its displacement, using the wheels (4,5), on the rail 7.
- the wheels (4, 5) are at high wheelbase, that is to say a distance between the axles of said wheels (4, 5) along the axis 6 is equal to at least two thirds of a length of the frame 2 along said axis 6. This distance between the wheels promotes the stability of the device 1, limiting the risk of tilting forwards or back along the axis 6 of displacement.
- the frame 2 is provided with a welding apparatus comprising a torch 9.
- the torch 9 is equipped with means for moving in translation along two axes (X, Y) included in a horizontal plane.
- a torch equipped with such means is described in patent EP 1 145 793.
- the frame 2 is substantially vertical to the rail 7 to be repaired, unlike the apparatus described in patent EP 1 145 793.
- the invention therefore makes it possible to place the torch 9 at one end 10 of the device 1, along the axis 6 of displacement. It can be indifferently a front end or back.
- the torch is not arranged on a side face of the device.
- This arrangement of the torch 9, for example at the front of the frame 2, allows the maintenance of parts having a specific shape, such as the cores of crossing 1 1 of switches. Indeed, an apparatus carrying a welding torch on a side face, as described in EP 1 145 793, is sometimes unsuitable for this type of room.
- the holding system consisting of two clamps aligned on either side of the torch is more suitable for a straight rail than for an element such as a crossover heart 1 1.
- FIG. 2 shows a sectional view of a wheel 4 of the device 1, in position on a rail 7.
- the wheel 4 is provided with two cheeks (12, 13) which are placed on either side of the mushroom 14 of the rail 7.
- the two cheeks (12, 13) are substantially annular in shape.
- One of the functions of the cheeks (12, 13) is to guide the device 1 during its movement on the rail 7, so to avoid derailment.
- one of the cheeks 12 is fixed, while the other cheek 13 is movable along an axis 15 of the wheel 4.
- This system makes it possible to lock the device 1 in a precise position on the rail 7, taking in vice between the cheeks (12, 13) the mushroom 14 of said rail 7.
- the cheek 13 can be loosened in order to make its mobility to the wheel 4.
- This system which makes it possible to very precisely adjust the position of the device 1, is extremely advantageous for the minute operations of maintenance of the rails, such as the electric arc welding.
- the adaptability of the space between the cheeks 12 and 13 makes it possible to use the device 1 on rails of different widths.
- the cheeks (12, 13) are located on either side of said vertical plane when the cheek 13 is positioned closest to the cheek 12. It is therefore preferable to size and dispose the wheel 4 in depending on the position of the vertical plane mentioned above.
- the adjustment system involves a button 16 clamping, a rod 17 partially threaded and a spring 18 clamping.
- the wheel 4 is movable around the rod 17 by means of ball bearings 19.
- the cheeks (12, 13) engage the rail 7 by an inner surface (20, 21).
- One internal surface is considered to be one cheek facing the other cheek.
- an inner surface 20 or 21 of at least one cheek 12 or 13 has substantially the shape of a truncated cone of revolution. More preferably, internal surfaces (20, 21) of the two cheeks (12, 13) have substantially the shape of a truncated cone of revolution.
- This frustoconical shape makes it possible to marry more effectively the lateral edges of the mushroom 14 of a rail 7.
- said edges are slightly inclined with respect to the vertical. More specifically, the edges of the mushroom 14 move away from each other on the way down.
- a surface 20 or 21 forms an angle ⁇ with a plane perpendicular to the axis 15. This angle is such that the surfaces (20, 21) deviate from each other as one moves away from axis 15.
- the angle ⁇ is between 1 ° and 15 °, more preferably between 2 ° and 5 °, more preferably between 3 ° and 4 °.
- the frustoconical surfaces (20, 21) allow the cheeks (12, 13) to conform to the edges of a conventional rail head 14 more effectively than flat surfaces. The degree of tightening of the cheeks (12, 13) around the rail 7 is thus improved, which promotes the accuracy of the maintenance work performed by the device 1.
- the characteristics of the frustoconical shapes of the surfaces 20 and 21 are chosen in depending on the type of rail to be repaired. In the example shown in Figure 2, these surfaces are convex, that is to say that the surfaces (20, 21) deviate from one another as one moves away from the axis 15.
- the surfaces (20, 21) Depending on the shape of the mushroom 14 of the rail to be repaired, it is also possible to give the surfaces (20, 21) a concave shape, the surfaces (20, 21) approaching each other as one moves away from the axis 15. It is also possible to choose a different angle ⁇ for the cheek 12 and the cheek 13, while remaining within the scope of the 'invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0856050A FR2935715B1 (fr) | 2008-09-09 | 2008-09-09 | Dispositif pour la maintenance de rails |
PCT/FR2009/051672 WO2010029248A1 (fr) | 2008-09-09 | 2009-09-04 | Dispositif pour la maintenance de rails |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2337897A1 true EP2337897A1 (fr) | 2011-06-29 |
EP2337897B1 EP2337897B1 (fr) | 2015-06-03 |
Family
ID=40497618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09741369.4A Active EP2337897B1 (fr) | 2008-09-09 | 2009-09-04 | Dispositif pour la maintenance de rails |
Country Status (6)
Country | Link |
---|---|
US (1) | US8490548B2 (fr) |
EP (1) | EP2337897B1 (fr) |
CN (1) | CN102177297B (fr) |
FR (1) | FR2935715B1 (fr) |
RU (1) | RU2487208C2 (fr) |
WO (1) | WO2010029248A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015197043A1 (fr) * | 2014-06-23 | 2015-12-30 | Herf Wolf Dieter | Roue couronne à double voie partagée pour véhicules ferroviaires, rail-route et routiers |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2972378B1 (fr) * | 2011-03-09 | 2013-03-29 | Solytek | Abri de soudage. |
CN102776812B (zh) * | 2012-03-27 | 2013-06-19 | 武汉新瑞达激光工程有限责任公司 | 一种在线式钢轨激光加工车 |
CN104120673B (zh) * | 2014-07-08 | 2016-05-25 | 西安工程大学 | T形铁路道岔维护工具 |
US10286460B2 (en) | 2017-04-07 | 2019-05-14 | Robert J. Murphy | Single-pass, single-radial layer, circumferential-progression fill-welding system, apparatus and method for refurbishing railway and other transit rails |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2859706A (en) * | 1955-09-22 | 1958-11-11 | Nordberg Manufacturing Co | Track working machine |
CH624351A5 (en) * | 1977-08-18 | 1981-07-31 | Leo Ritler | Rail vehicle, in particular for devices required for track workings |
SU1084346A1 (ru) * | 1982-02-08 | 1984-04-07 | Свердловское Специализированное Монтажно-Наладочное Управление "Цветметналадка" | Самоориентирующа с тележка дл контрол отклонений от пр молинейности рельса подкранового пути |
US5080021A (en) * | 1988-06-23 | 1992-01-14 | Harnischfeger Corporation | Apparatus and method for correcting skew of a traveling crane |
ATE165129T1 (de) * | 1994-02-01 | 1998-05-15 | Plasser Bahnbaumasch Franz | Einrichtung zum schleifen von schienen |
US6207920B1 (en) * | 1997-02-21 | 2001-03-27 | Lincoln Global, Inc. | Method and system for welding railroad rails |
CN2367633Y (zh) * | 1998-12-24 | 2000-03-08 | 孟庆梁 | 轻型钢轨打磨机 |
FR2806337B1 (fr) | 2000-03-15 | 2002-05-31 | Joseph Sauron Materiel Ind | Procede et automate de soudage a l'arc utilisant des fils fourres |
RU2253712C1 (ru) * | 2004-04-16 | 2005-06-10 | Богданов Виктор Михайлович | Устройство для упрочнения рельсовых путей |
DE202006011589U1 (de) * | 2006-07-28 | 2006-10-05 | Robel Bahnbaumaschinen Gmbh | Instandhaltungsfahrzeug |
-
2008
- 2008-09-09 FR FR0856050A patent/FR2935715B1/fr active Active
-
2009
- 2009-09-04 CN CN200980140103.5A patent/CN102177297B/zh not_active Expired - Fee Related
- 2009-09-04 RU RU2011113825/11A patent/RU2487208C2/ru active
- 2009-09-04 EP EP09741369.4A patent/EP2337897B1/fr active Active
- 2009-09-04 US US13/062,821 patent/US8490548B2/en active Active
- 2009-09-04 WO PCT/FR2009/051672 patent/WO2010029248A1/fr active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2010029248A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015197043A1 (fr) * | 2014-06-23 | 2015-12-30 | Herf Wolf Dieter | Roue couronne à double voie partagée pour véhicules ferroviaires, rail-route et routiers |
Also Published As
Publication number | Publication date |
---|---|
CN102177297B (zh) | 2012-12-05 |
US8490548B2 (en) | 2013-07-23 |
FR2935715B1 (fr) | 2014-07-18 |
CN102177297A (zh) | 2011-09-07 |
EP2337897B1 (fr) | 2015-06-03 |
US20110168050A1 (en) | 2011-07-14 |
FR2935715A1 (fr) | 2010-03-12 |
RU2487208C2 (ru) | 2013-07-10 |
WO2010029248A1 (fr) | 2010-03-18 |
RU2011113825A (ru) | 2012-10-20 |
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