EP1682304A1 - Method for welding two rails of a track - Google Patents

Method for welding two rails of a track

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Publication number
EP1682304A1
EP1682304A1 EP04797581A EP04797581A EP1682304A1 EP 1682304 A1 EP1682304 A1 EP 1682304A1 EP 04797581 A EP04797581 A EP 04797581A EP 04797581 A EP04797581 A EP 04797581A EP 1682304 A1 EP1682304 A1 EP 1682304A1
Authority
EP
European Patent Office
Prior art keywords
rail
welding
rails
temperature
machine
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
Application number
EP04797581A
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German (de)
French (fr)
Other versions
EP1682304B1 (en
Inventor
Bernhard Lichtberger
Heinz MÜHLLEITNER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Franz Plasser Bahnbaumaschinen Industrie GmbH
Original Assignee
Franz Plasser Bahnbaumaschinen Industrie GmbH
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Application filed by Franz Plasser Bahnbaumaschinen Industrie GmbH filed Critical Franz Plasser Bahnbaumaschinen Industrie GmbH
Priority to PL04797581T priority Critical patent/PL1682304T3/en
Publication of EP1682304A1 publication Critical patent/EP1682304A1/en
Application granted granted Critical
Publication of EP1682304B1 publication Critical patent/EP1682304B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
    • E01B29/42—Undetachably joining or fastening track components in or on the track, e.g. by welding, by gluing; Pre-assembling track components by gluing; Sealing joints with filling components
    • E01B29/46—Devices for holding, positioning, or urging together the rail ends

Definitions

  • the invention relates to a method for welding two rails of a track according to the features cited in the preamble of claim 1.
  • the object of the present invention is now to provide a method of the generic type, with which a welding of the rails is also possible above the neutral temperature.
  • FIG. 1 and 2 each show a view of a welding unit
  • Fig. 3 to 7 are schematic representations of the welding process.
  • a welding unit 1 shown in FIGS. 1 and 2 consists essentially of two mutually spaced-apart aggregate halves 2, which are displaceably connected to one another in the longitudinal direction by compression cylinders 3 arranged in a common horizontal plane and running parallel to each other.
  • Each of the two aggregate halves 2 consists of two - about a running in the rail longitudinal axis - tong-like pivoted to each other unit levers 4 with effective as an electrode jaws 5 of two jaw pairs 6. These are each for contact with a front rail end 7 of a first rail 8 and a rear rail end 7 a second rail 10 is provided.
  • the two in the transverse direction of the track opposite each other aggregate levers 4,5 are connected in their upper end by a clamping cylinder 12 for pressing the jaws 5 to the rails 8,10 together.
  • the welding unit 1 is suspended from a telescopic crane attached to a welding machine 20.
  • the power is supplied by a generator arranged in the welding machine 20 and a hydraulic pump.
  • a control device 13 is provided for carrying out the welding process and recording various welding parameters.
  • the desired pressure force is calculated after entering the neutral temperature, the current rail temperature and the rail type in the control device 13 by a microprocessor.
  • a rail anchor 16 are formed (s. 3 and 4).
  • a hydraulic rail pressure device 19 is frictionally engaged with the adjacent rail ends 7 of second and third rail 10,14 contacted, while on the abutting the rail ends 7 of the first and second rail 8,10 the welding unit 1 is placed and non-positively connected by the jaws 5 with the two rail ends 7.
  • the welding process is initiated so that the two detected by the jaws 5 rail ends 7 are moved under the action of the compression cylinder 3 from each other until adjacent end faces 9 of the two rail ends 7 form a welding gap w s of 3 millimeters.
  • a force measurement takes place permanently via the pressure in the compression cylinders 3 and, via the distance of the two jaw pairs 6 from each other, also a displacement measurement.
  • the actual welding is started while the current is being supplied, and the mutual movement of the two pairs of clamping jaws 6 is reversed in a mutual movement (see Fig. 7) and thus the burning-off phase is initiated with the final upsetting impact.
  • This Zuschiolo is carried out according to the program while maintaining a slight distancing of the rail ends 7 to each other and finally terminated at a compression force of 30 N / mm 2 with the compression stroke. In this phase, a shortening of each rail end 7 occurs by about 17.5 mm. This naturally leads to a drop in the actual rail voltage below the desired compressive stress.
  • the attainment of the desired compressive stress is registered via the upset cylinders 3 and can automatically be calculated with the involvement of the hydraulic cylinder 21 of the rail-holding device 19. be valid. But it is also possible to control the loading of the hydraulic cylinder 21 by hand, wherein the compressive stress occurring in the region of the welding unit 1 is checked on a display.
  • This method ensures that after completion of the rail welding in the rails 8, 10 which are welded together, the desired compressive stress correlating with the current rail temperature prevails.
  • hydraulic cylinders 21 of the rail-holding device 19 are depressurized.
  • the welding unit 1 can already be solved immediately after removal of a Sch Strukturwulstes of the rails 8,10 and lifted.

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  • Engineering & Computer Science (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

The invention relates to a method for welding two rails (8, 10, 14) of a track using a welding unit (1) of a welding machine (20). According to said method, two rails (8, 10, 14) each caught by a pair of clamping jaws (6) of the welding unit (1) are moved and welded together while subjecting them to crusher cylinders (3) in the longitudinal direction of the rails. A rail anchor (16) is produced in a so-called terminal welding step in a working direction (11) upstream of the machine (20) by linking a section of the rail (14) with ties (15) in a non-positive manner. If the actual rail temperature differs from the local neutral temperature, tensions are passed into the rails to be welded together. The inventive method is characterized in that in parallel to the welding of a - with respect to the working direction of the welding machine (20) - first rail with a second rail (8, 10), a pressure force is passed into a front rail end (7) of the second rail (10) in the direction of the first rail (8) by means of a rail pressing device (19) in order to generate a compressive strain, the rail pressing device (19) being supported on a rail anchor (16) of a third rail (14) subsequent to the second rail (10). The first rail (8) is braced with the ties (15) once the welding step is terminated.

Description

Verfahren zum Verschweißen von zwei Schienen eines Gleises.Method for welding two rails of a track.
Die Erfindung betrifft ein Verfahren zum Verschweißen von zwei Schienen eines Gleises gemäß den im Oberbegriff von Anspruch 1 angeführten Merkmalen.The invention relates to a method for welding two rails of a track according to the features cited in the preamble of claim 1.
Durch US 5 099 097, US 5 136 140, US 4 929 816 ist je ein Schweißaggregat bekannt, das zur Einbringung von erhöhten Zugkräften in die zu verschweißenden Schienen mit einer Schienenzieheinrichtung ausgestattet ist. Damit können auch lang verschweißte Schienen unter der Neutraltemperatur im Rahmen einer sogenannten Schlussschweißung verschweißt werden.US 5 099 097, US 5 136 140, US 4 929 816 each discloses a welding unit which is equipped with a rail pulling device for introducing increased tensile forces into the rails to be welded. Thus, even long welded rails can be welded under the neutral temperature in the context of a so-called final welding.
Durch einen Artikel 'Mobile flash-butt rail welding: three decades of experien- ce' in der Zeitschrift 'Rail Engineering International', Edition 2002/3, Seiten 11 bis 16, ist es ebenfalls bekannt, zur Durchführung von Schlussschweißungen eine das Schweißaggregat umschließende Schienenzieheinrichtung zu verwenden.By an article 'Mobile flash-butt rail welding: three decades of experience' in the journal 'Rail Engineering International', Edition 2002/3, pages 11 to 16, it is also known for the implementation of final welds a welding unit enclosing Rail pulling device to use.
Die Aufgabe der vorliegenden Erfindung liegt nun in der Schaffung eines Verfahrens der gattungsgemäßen Art, mit dem eine Verschweißung der Schienen auch oberhalb der Neutraltemperatur möglich ist.The object of the present invention is now to provide a method of the generic type, with which a welding of the rails is also possible above the neutral temperature.
Erfindungsgemäß wird diese Aufgabe mit einem Verfahren der eingangs genannten Art durch die im Kennzeichen von Anspruch 1 angeführten Merkmale gelöst.According to the invention this object is achieved by a method of the type mentioned by the features cited in the characterizing part of claim 1.
Mit einem derartigen Verfahren können die Schweißarbeiten erstmals unabhängig von der aktuellen Temperatur durchgeführt werden. Dies führt zusätzlich zu wirtschaftlichen Vorteilen auch zu einer erhöhten Sicherheit, da nunmehr keine Notlaschenverbinder verwendet werden müssen, bis die aktuelle Temperatur im Neutralbereich liegt. Weitere Vorteile und Ausbildungen der Erfindung ergeben sich aus den weiteren Ansprüchen und der Zeichnung.With such a method, the welding work can be performed for the first time regardless of the current temperature. In addition to economic advantages, this also leads to increased safety, since now no emergency tab connectors must be used until the current temperature is in the neutral range. Further advantages and embodiments of the invention will become apparent from the other claims and the drawings.
Im folgenden wird die Erfindung anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher beschrieben.In the following the invention will be described in more detail with reference to embodiments shown in the drawing.
Es zeigen:Show it:
Fig. 1 und 2 je eine Ansicht eines Schweißaggregates, und Fig. 3 bis 7 schematische Darstellungen des Schweißvorganges.1 and 2 each show a view of a welding unit, and Fig. 3 to 7 are schematic representations of the welding process.
Ein in Fig.1 und 2 dargestelltes Schweißaggregat 1 setzt sich im wesentlichen aus zwei voneinander distanzierten Aggregathälften 2 zusammen, die durch in einer gemeinsamen horizontalen Ebene angeordnete und parallel zueinander verlaufende Stauchzylinder 3 in deren Längsrichtung verschiebbar miteinander verbunden sind. Jeder der beiden Aggregathälften 2 besteht aus zwei - um eine in Schienenlängsrichtung verlaufende Achse - zangenförmig zueinander verschwenkbaren Aggregathebeln 4 mit als Elektroden wirksamen Klemmbacken 5 zweier Klemmbackenpaare 6. Diese sind jeweils zur Anlage an ein vorderes Schienenende 7 einer ersten Schiene 8 und an ein hinteres Schienenende 7 einer zweiten Schiene 10 vorgesehen.A welding unit 1 shown in FIGS. 1 and 2 consists essentially of two mutually spaced-apart aggregate halves 2, which are displaceably connected to one another in the longitudinal direction by compression cylinders 3 arranged in a common horizontal plane and running parallel to each other. Each of the two aggregate halves 2 consists of two - about a running in the rail longitudinal axis - tong-like pivoted to each other unit levers 4 with effective as an electrode jaws 5 of two jaw pairs 6. These are each for contact with a front rail end 7 of a first rail 8 and a rear rail end 7 a second rail 10 is provided.
Die beiden in Gleisquerrichtung einander gegenüberliegenden Aggregathebeln 4,5 sind in ihrem oberen Endbereich durch einen Spannzylinder 12 zum Anpressen der Klemmbacken 5 an die Schienen 8,10 miteinander verbunden. Das Schweißaggregat 1 ist an einem an einer Schweißmaschine 20 befestigten Teleskopkran aufgehängt. Die Energieversorgung erfolgt durch einen in der Schweißmaschine 20 angeordneten Generator und eine Hydraulikpumpe. Zur Durchführung des Schweißvorganges und Aufzeichnung verschiedener Schweißparameter ist eine Steuereinrichtung 13 vorgesehen.The two in the transverse direction of the track opposite each other aggregate levers 4,5 are connected in their upper end by a clamping cylinder 12 for pressing the jaws 5 to the rails 8,10 together. The welding unit 1 is suspended from a telescopic crane attached to a welding machine 20. The power is supplied by a generator arranged in the welding machine 20 and a hydraulic pump. For carrying out the welding process and recording various welding parameters, a control device 13 is provided.
Bei einem lückenlos verschweißten Gleis treten Druckspannungen auf, sobald die aktuelle Schienentemperatur über eine Neutral-Temperatur ansteigt. Sinkt die Schienentemperatur unter die Neutral-Temperatur, so treten Zugspannungen auf. Das Verschweißen erfolgt nach dem Abbrennstumpf-Schweißverfahren. Die Schienen werden bei einer über Neutraltemperatur befindlichen Schienentemperatur zu ca. 360 m langen Teilabschnitten verschweißt. Die der Einfachheit halber hier als erste, zweite und dritte Schiene bezeichneten Teilabschnitte werden schließlich durch sogenannte Schluss-Schweißungen verbunden.In the case of a seamlessly welded track, compressive stresses occur as soon as the current rail temperature rises above a neutral temperature. If the rail temperature drops below the neutral temperature, tensile stresses occur. The welding takes place after the flash butt welding process. The rails are welded at a rail temperature above neutral temperature to about 360 m long sections. The sake of simplicity here referred to as the first, second and third rail sections are finally connected by so-called final welds.
Wenn nun beispielsweise die vor Durchführung der Schluss-Schweißung gemessene aktuelle Schienentemperatur 30° und die Neutraltemperatur 20° betragen, ergibt sich folgende Soll-Druckspannung: σSOιι = E . α . Δ tIf, for example, the actual rail temperature measured before implementation of the final weld is 30 ° and the neutral temperature is 20 °, the following desired compressive stress results: σ SO ιι = E. α. Δt
E = Elastizitätsmodul des Schienenstahls [215000 N/mm2],E = modulus of elasticity of the rail steel [215000 N / mm 2 ],
Δ t = Temperaturänderung [°C], α = Wärmedehnungskoeffizient des Schienenwerkstoffes [0,0000115] σSOιι = 215000 . 0,0000115 . 10 = 24,73 N/mm2 Daraus ergibt sich bei einer UIC 60 Schiene mit einer Fläche von 7686 mm2 folgende Soll-Druckkraft FSOιι. Fβoii - 24,73 . 7686 = 190 074 N bzw. 190 kN (Kilonewton).Δ t = temperature change [° C], α = thermal expansion coefficient of the rail material [0.0000115] σ SO ιι = 215000. 0.0000115. 10 = 24.73 N / mm 2 This results in a UIC 60 rail with an area of 7686 mm 2, the following desired compressive force F SO ιι. Fβoii - 24,73. 7686 = 190 074 N or 190 kN (kilonewtons).
Die Soll-Druckkraft wird nach Eingabe der Neutraltemperatur, der aktuellen Schienentemperatur sowie der Schienentype in die Steuereinrichtung 13 durch einen Mikroprozessor errechnet.The desired pressure force is calculated after entering the neutral temperature, the current rail temperature and the rail type in the control device 13 by a microprocessor.
Im folgenden wird nun die Durchführung des erfindungsgemäßen Verfahrens näher beschrieben:The execution of the method according to the invention will now be described in more detail below:
Zum Verschweißen der - in Arbeitsrichtung 11 einer Schweißmaschine 20 gesehen - ersten mit der zweiten Schiene 8,10 über Neutraltemperatur muss zuerst durch Verspannen eines Abschnittes einer an die zweite Schiene 10 angrenzenden dritten Schiene 14 mit zugeordneten Schwellen 15 ein Schienenanker 16 gebildet werden (s. Fig. 3 u. 4). Damit wird eine Längsbewegung der dritten Schiene 14 relativ zu den zugeordneten Schwellen 15 ausgeschlossen. Eine hydraulische Schienendrückvor- richtung 19 wird kraftschlüssig mit den aneinandergrenzenden Schienenenden 7 der zweiten und dritten Schiene 10,14 kontaktiert, während auf die aneinandergrenzen- den Schienenenden 7 der ersten und zweiten Schiene 8,10 das Schweißaggregat 1 aufgesetzt und durch die Klemmbacken 5 kraftschlüssig mit den beiden Schienenenden 7 verbunden wird.For welding the - viewed in the working direction 11 of a welding machine 20 - first with the second rail 8,10 neutral temperature must first by bracing a portion of adjacent to the second rail 10 third rail 14 with associated thresholds 15, a rail anchor 16 are formed (s. 3 and 4). Thus, a longitudinal movement of the third rail 14 is excluded relative to the associated thresholds 15. A hydraulic rail pressure device 19 is frictionally engaged with the adjacent rail ends 7 of second and third rail 10,14 contacted, while on the abutting the rail ends 7 of the first and second rail 8,10 the welding unit 1 is placed and non-positively connected by the jaws 5 with the two rail ends 7.
Der Schweißvorgang wird damit eingeleitet, dass die beiden durch die Klemmbacken 5 erfassten Schienenenden 7 unter Beaufschlagung der Stauchzylinder 3 voneinander bewegt werden, bis aneinander grenzende Stirnflächen 9 der beiden Schienenenden 7 eine Schweißlücke ws von 3 Millimeter bilden. Dabei erfolgt permanent über den Druck in den Stauchzylindern 3 eine Kraftmessung und über den Abstand der beiden Klemmbackenpaare 6 zueinander auch eine Wegmessung. Nach Bildung der Schweißlücke ws wird unter Stromzufuhr die eigentliche Schweißung gestartet und die Voneinanderbewegung der beiden Klemmbackenpaare 6 in eine Zueinanderbe- wegung umgekehrt (s. Fig. 7) und damit die Abbrandphase mit dem abschließenden Stauchschlag eingeleitet. Diese Zueinanderbewegung wird programmgemäß unter Aufrechterhaltung einer geringfügigen Distanzierung der Schienenenden 7 zueinander durchgeführt und schließlich bei einer Stauchkraft von 30 N/mm2 mit dem Stauchschlag beendet. In dieser Phase tritt eine Verkürzung jedes Schienenendes 7 um etwa 17,5 mm auf. Dies führt naturgemäß zu einem Abfall der Ist- Schienenspannung unter die Soll-Druckspannung.The welding process is initiated so that the two detected by the jaws 5 rail ends 7 are moved under the action of the compression cylinder 3 from each other until adjacent end faces 9 of the two rail ends 7 form a welding gap w s of 3 millimeters. In this case, a force measurement takes place permanently via the pressure in the compression cylinders 3 and, via the distance of the two jaw pairs 6 from each other, also a displacement measurement. After the welding gap w s has been formed, the actual welding is started while the current is being supplied, and the mutual movement of the two pairs of clamping jaws 6 is reversed in a mutual movement (see Fig. 7) and thus the burning-off phase is initiated with the final upsetting impact. This Zueinanderbewegung is carried out according to the program while maintaining a slight distancing of the rail ends 7 to each other and finally terminated at a compression force of 30 N / mm 2 with the compression stroke. In this phase, a shortening of each rail end 7 occurs by about 17.5 mm. This naturally leads to a drop in the actual rail voltage below the desired compressive stress.
Um trotz dieser Schienenkürzung die Soll-Druckspannung aufrecht zu erhalten, wird parallel zur Abbrandphase durch die Schienendrückvorrichtung 19 eine - ebenfalls in der Steuereinrichtung 13 registrierte - Druckkraft P+ in Richtung zum Schweißaggregat 1 in das vordere Schienenende 7 der zweiten Schiene 10 zur Erzeugung einer Druckspannung eingebracht. Diese sollte aufgrund des Reibungswiderstandes zweckmäßigerweise etwas höher sein als die Soll-Druckspannung. Es wird damit gleichsam über eine durch Schienenanker 16, Hydraulikzylinder 21 der Schienendrückvorrichtung 19, zweite Schiene 2 und Stauchzylinder 3 gebildete Kraftkette die Soll-Druckspannung auf die erste Schiene 8 übertragen. Das Erreichen der Soll- Druckspannung wird über die Stauchzylinder 3 registriert und kann unter Einbeziehung des Hydraulikzylinders 21 der Schienendrückvorrichtung 19 automatisch gere- gelt werden. Es ist aber auch möglich, die Beaufschlagung des Hydraulikzylinders 21 händisch zu steuern, wobei die im Bereich des Schweißaggregates 1 auftretende Druckspannung auf einem Display kontrolliert wird.In order to maintain the target compressive stress despite this rail shortening, parallel to the burnup phase by the rail presser 19, a compressive force P + also registered in the controller 13 toward the welding unit 1 enters the front rail end 7 of the second rail 10 to generate a compressive stress brought in. This should expediently be slightly higher than the desired compressive stress due to the frictional resistance. It is thus as it were transmitted via a rail anchor 16, hydraulic cylinder 21 of the rail pressure device 19, second rail 2 and compression cylinder 3 force chain the desired compressive stress on the first rail 8. The attainment of the desired compressive stress is registered via the upset cylinders 3 and can automatically be calculated with the involvement of the hydraulic cylinder 21 of the rail-holding device 19. be valid. But it is also possible to control the loading of the hydraulic cylinder 21 by hand, wherein the compressive stress occurring in the region of the welding unit 1 is checked on a display.
Durch dieses Verfahren ist sichergestellt, dass nach Abschluss der Schienenver- schweißung in den miteinander verschweißten Schienen 8,10 die zur aktuellen Schienentemperatur korrelierende Soll-Druckspannung vorherrscht. Sobald die erste Schiene 8 durch Anziehen der Schienenbefestigungsmittel bzw. Montage von Schienenklemmen vorschriftsmäßig zur Gänze mit den zugeordneten Schwellen 15 verbunden (bzw. verankert) ist, werden Hydraulikzylinder 21 der Schienendrückvorrichtung 19 drucklos geschaltet. Das Schweißaggregat 1 kann bereits unmittelbar nach Entfernung eines Schweißwulstes von den Schienen 8,10 gelöst und abgehoben werden.This method ensures that after completion of the rail welding in the rails 8, 10 which are welded together, the desired compressive stress correlating with the current rail temperature prevails. As soon as the first rail 8 is properly connected (or anchored) to the associated thresholds 15 by tightening the rail fastening means or assembly of rail clamps, hydraulic cylinders 21 of the rail-holding device 19 are depressurized. The welding unit 1 can already be solved immediately after removal of a Schweißwulstes of the rails 8,10 and lifted.
Nach Positionierung des Schweißaggregates 1 über den beiden Schienenenden 7 der zweiten und dritten Schiene 10,14 können diese unter Wiederholung der Verfahrensschritte miteinander verschweißt werden. After positioning the welding unit 1 over the two rail ends 7 of the second and third rails 10, 14, these can be welded together by repeating the method steps.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Verfahren zum Verschweißen von zwei Schienen (8,10,14) eines Gleises durch ein Schweißaggregat (1 ) einer Schweißmaschine (20), wobei zwei jeweils durch ein Klemmbackenpaar (6) des Schweißaggregates (1 ) erfasste Schienen (8,10,14) unter Beaufschlagung von Stauchzylindern (3) in Schienenlängsrichtung bewegt und miteinander verschweißt werden, wobei im Rahmen einer sogenannten Schlussschweißung in einer Arbeitsrichtung (11 ) vor der Maschine (20) durch eine kraftschlüssige Verbindung eines Abschnittes der Schiene (14) mit Schwellen (15) ein Schienenanker (16) gebildet wird und bei einer Abweichung einer aktuellen Schienentemperatur von einer örtlichen Neutraltemperatur Spannungen in die zu verschweißenden Schienen eingeleitet werden, dadurch gekennzeichnet, dass parallel zur Verschweißung einer - bezüglich der Arbeitsrichtung der Schweißmaschine (20) - ersten mit einer zweiten Schiene (8,10) durch eine Schienendrückvorrichtung (19) in Richtung zur ersten Schiene (8) eine Druckkraft in ein vorderes Schienenende (7) der zweiten Schiene (10) zur Erzeugung einer Druckspannung eingebracht wird, wobei sich die Schienendrückvorrichtung (19) an einem Schienenanker (16) einer an die zweite Schiene (10) anschließenden dritten Schiene (14) abstützt, und dass nach Beendigung des Schweißvorganges die erste Schiene (8) mit den Schwellen (15) verspannt wird.1. A method for welding two rails (8,10,14) of a track by a welding unit (1) of a welding machine (20), wherein two each by a pair of jaws (6) of the welding unit (1) detected rails (8,10, 14) under loading of compression cylinders (3) are moved in the rail longitudinal direction and welded together, wherein in the context of a so-called final welding in a working direction (11) in front of the machine (20) by a non-positive connection of a portion of the rail (14) with sleepers (15 ) a rail anchor (16) is formed and in a deviation of a current rail temperature from a local neutral temperature voltages are introduced into the rails to be welded, characterized in that parallel to the welding one - with respect to the working direction of the welding machine (20) - first with a second Rail (8,10) by a rail presser (19) in the direction of the first rail (8) e compressive force in a front rail end (7) of the second rail (10) is introduced to generate a compressive stress, wherein the rail pressing device (19) on a rail anchor (16) of the second rail (10) adjoining third rail (14) is supported , And that after completion of the welding process, the first rail (8) with the thresholds (15) is braced.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass die an die erste und zweite Schiene (8,10) angepressten Klemmbackenpaare (6) in einer ersten Phase des Schweißvorganges voneinander distanziert werden, bis einander benachbarte Stirnflächen (9) der beiden Schienen (8,10) zur Bildung einer Schweißlücke ws voneinander distanziert sind und in einer zweiten Phase die Klemmbackenpaare (6) unter Stromzuführung zueinander bewegt werden und parallel dazu die Druckkraft durch die Schienendrückvorrichtung (19) in die zweite Schiene (10) eingebracht wird. 2. Method according to claim 1, characterized in that the clamping jaw pairs (6) pressed against the first and second rails (8, 10) are distanced from one another in a first phase of the welding operation until adjacent end faces (9) of the two rails (8 , 10) for forming a welding gap w s are spaced apart from each other and in a second phase, the jaw pairs (6) are moved under power supply to each other and parallel to the compressive force by the rail presser (19) in the second rail (10) is introduced.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die durch die Druckkraft der Schienendrückvorrichtung (19) erzeugte Druckspannung wenigstens einer zur aktuellen Schienentemperatur korrelierenden Soll- Druckspannung entspricht.3. The method according to claim 1 or 2, characterized in that the compressive force of the rail pressure device (19) generated pressure corresponds to at least one of the current rail temperature correlated desired compressive stress.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Schweißaggregat (1 ) und die Schienendrückvorrichtung (19) synchron gesteuert werden. 4. The method according to any one of claims 1 to 3, characterized in that the welding unit (1) and the rail-pressing device (19) are controlled synchronously.
EP04797581A 2003-11-06 2004-11-04 Method for welding two rails of a track Not-in-force EP1682304B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04797581T PL1682304T3 (en) 2003-11-06 2004-11-04 Method for welding two rails of a track

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0077703U AT6690U3 (en) 2003-11-06 2003-11-06 PROCESS FOR WELDING RAILS OF A TRAIL
PCT/EP2004/012451 WO2005044504A1 (en) 2003-11-06 2004-11-04 Method for welding two rails of a track

Publications (2)

Publication Number Publication Date
EP1682304A1 true EP1682304A1 (en) 2006-07-26
EP1682304B1 EP1682304B1 (en) 2012-08-08

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Application Number Title Priority Date Filing Date
EP04797581A Not-in-force EP1682304B1 (en) 2003-11-06 2004-11-04 Method for welding two rails of a track

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US (1) US20080230520A1 (en)
EP (1) EP1682304B1 (en)
JP (1) JP4750036B2 (en)
AT (1) AT6690U3 (en)
AU (1) AU2004287598B2 (en)
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WO (1) WO2005044504A1 (en)

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WO2019007599A1 (en) 2017-07-04 2019-01-10 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Apparatus for welding a rail joint of a track

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EP1682304B1 (en) 2012-08-08
AT6690U3 (en) 2004-11-25
AT6690U2 (en) 2004-02-25
AU2004287598B2 (en) 2009-05-28
ES2391459T3 (en) 2012-11-27
US20080230520A1 (en) 2008-09-25
PL1682304T3 (en) 2013-04-30
AU2004287598A1 (en) 2005-05-19
JP4750036B2 (en) 2011-08-17
JP2007509759A (en) 2007-04-19
WO2005044504A1 (en) 2005-05-19

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