EP2243565B1 - Device for hardening rails - Google Patents

Device for hardening rails Download PDF

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Publication number
EP2243565B1
EP2243565B1 EP10450110A EP10450110A EP2243565B1 EP 2243565 B1 EP2243565 B1 EP 2243565B1 EP 10450110 A EP10450110 A EP 10450110A EP 10450110 A EP10450110 A EP 10450110A EP 2243565 B1 EP2243565 B1 EP 2243565B1
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EP
European Patent Office
Prior art keywords
rail
basin
cooling medium
cooling
rails
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Active
Application number
EP10450110A
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German (de)
French (fr)
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EP2243565A1 (en
Inventor
Hans Pfeiler
Norbert Köck
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Voestalpine Rail Technology GmbH
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Voestalpine Schienen GmbH
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Application filed by Voestalpine Schienen GmbH filed Critical Voestalpine Schienen GmbH
Priority to PL10450110T priority Critical patent/PL2243565T3/en
Priority to SI200930242T priority patent/SI2243565T1/en
Publication of EP2243565A1 publication Critical patent/EP2243565A1/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B43/00—Cooling beds, whether stationary or moving; Means specially associated with cooling beds, e.g. for braking work or for transferring it to or from the bed
    • B21B43/003—Transfer to bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B43/00—Cooling beds, whether stationary or moving; Means specially associated with cooling beds, e.g. for braking work or for transferring it to or from the bed
    • B21B43/06—Cooling beds comprising carriages
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/63—Quenching devices for bath quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/04—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/085—Rail sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B43/00—Cooling beds, whether stationary or moving; Means specially associated with cooling beds, e.g. for braking work or for transferring it to or from the bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B43/00—Cooling beds, whether stationary or moving; Means specially associated with cooling beds, e.g. for braking work or for transferring it to or from the bed
    • B21B43/006—Transfer from bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/023—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes by immersion in a bath

Definitions

  • the invention relates to a device for hardening rails, in particular profiled rails, optionally with respectively different cross-sectional shape and a length of greater than 50m by cooling at least part of the respective rail cross-section over the entire rail length in a coolant, consisting of Querverschiebeschn in the area a roller table, of directing means and manipulation gripper for moving the rail in the device, at least one positioning means, each with a basin or trough with coolant and a cooling bed.
  • a coolant consisting of Querverschiebeschn in the area a roller table
  • Rails of carbon-containing, optionally low-alloy steels which are placed on a cooling bed after rolling and allowed to cool, have a pearlitic structure throughout, the material having corresponding mechanical properties.
  • the microstructure can be adjusted in such a way that at least the claimed rail head high hardness, high abrasion resistance and a has low Rissinitiation, ie, that the rail in the track has improved performance characteristics.
  • a device for hardening rails by a targeted formation of the microstructure during the cooling of the same can be designed for a passage through a spray cooling device or for a dip in a coolant.
  • the invention seeks to remedy the deficiencies and sets itself the goal of creating a device of the type mentioned for the hardening of rails, especially profiled rails, with which high throughput with high reliability high quality rails can be produced economically.
  • a plant according to the objective of manipulation gripper for unhindered rapid movement of the expiring from the rollers rails which allows axial alignment of the same, and a dimensionally correct applicability in a positioning and / or depositing on a transfer means and / or on a cooling bed accomplishes positioning means for a distortion-free clamping and / or quenching means, which is cooperatively usable with a positioning means, wherein Control means by which the plant components are tunable to each other for a cyclic dipping of the head and / or other parts of the cross-section and / or the entire surface of the rail in the course of their cooling.
  • discharge means are arranged for the coolant in the basin and / or in the supply lines, which are open for short-term emptying of the basin.
  • discharge means are arranged for the coolant in the basin and / or in the supply lines, which are open for short-term emptying of the basin.
  • the basin on the bottom side at least one coolant inlet per 1.5m basin length, through which a regulated coolant flow can be fed, preferably arranged in the tank above the coolant inlet to this sealed spaced at least one perforated or fürströmbare plate and / or in the flow direction of the coolant downstream of a plate with nozzles or with channels is (are) used.
  • the local cooling intensity of the coolant can be kept the same for the cross-sectional surface areas over the longitudinal rail extension and consequently high uniform quality in the production of hardened rails can be achieved.
  • FIG. 1 is shown in cross section a device for hardening rails.
  • a rail 1 is spent after the stitch in the last rolling caliber (not shown) on a roller table 2 and positioned by a transverse pushing means 21 on this.
  • An in Fig. 1 illustrated manipulation gripper 3 is designed such that this a track 1 in a lying position on the roller table 2 of this by means of a plurality of pliers 30 on the rail length correctly picks up and aligned by holding the gripping arms 31,31 'axially.
  • the pliers 30 are together by machine-trained parts while clamping the Centering members 312, 312 'are vertically, horizontally and rotationally movable perpendicular to the rail axis, such that a laterally located rail received by the roller table 2, axially directed, turned to a horizontal footing suspended position, is positioned in a positioning means 4, as in FIG Fig. 3 shown on facilities 41,41 'can be introduced.
  • a rail 1,1 'from the roller table 2 or by a positioning means 4 can be received and stored on a cooling bed 6 or on a transfer means 61.
  • a positioning means 4 is in Fig. 3 shown and has over the length of a rail 1 holding components 40, 40 'with systems 41,41', in which the rail 1 is inserted axially directed. Clamping elements 42, 42 'can be adjusted in the direction of the systems 41, 41' towards the flange ends of a rail foot 11. Positioning means 4 and 5 basin with coolant 50 cooperate during the hardening process of rails 1.
  • FIG. 1 shows in the device at least two basins 5 with coolant 50 axparallel arranged side by side, each of which is usable for curing a rail 1 part of the coolant 50 in the basin 5 has a depth which is greater than the maximum rail height to a full immersion allow the same in the cooling liquid 50.
  • coolant inlet 54 anddeschellenk Rheinen 53 are arranged on the bottom side in the basin 5, wherein to smooth out the flow velocity of the coolant 50 during flow of a rail 1 over the entire length of the basin 5 through-flow plates 51 and / or nozzle plates 52 are used for diving down.
  • Positioning means 4 for rails 1 and 5 with refrigerant tank 50, as previously mentioned, together and by means of control means (not shown) are relatively movable and at least in the positions "diving of cross-sectional parts" and / or “head hardening” and / or “full Dip hardening "can be positioned for periods.
  • a grooved rail 1R in comparison with a Vignolschiene 1 V in Fig. 4 Axis deviations Az, Ar between head x and foot axis y can be represented be given.
  • a axis deviations Az, Ax corresponding horizontal, axparallele positioning of positioning means 4 and 5 pelvis can be set ..

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Description

Die Erfindung bezieht sich auf eine Einrichtung zum Härten von Schienen, insbesondere profilierten Fahrschienen, mit gegebenenfalls jeweils unterschiedlicher Querschnittsform und einer Länge von größer als 50m durch Abkühlen von zumindest einem Teil des jeweiligen Schienenquerschnittes über die gesamte Schienenlänge in einem Kühlmittel, bestehend aus Querverschiebemitteln im Bereich eines Rollganges, aus Richtmitteln und Manipulationsgreifer zum Verbringen der Schiene in der Einrichtung, mindestens einem Positioniermittel, mit jeweils einem Becken bzw. Trog mit Kühlmittel sowie einem Kühlbett.The invention relates to a device for hardening rails, in particular profiled rails, optionally with respectively different cross-sectional shape and a length of greater than 50m by cooling at least part of the respective rail cross-section over the entire rail length in a coolant, consisting of Querverschiebemitteln in the area a roller table, of directing means and manipulation gripper for moving the rail in the device, at least one positioning means, each with a basin or trough with coolant and a cooling bed.

Schienen aus Kohlenstoff enthaltenden, gegebenenfalls niedriglegierten Stählen, die nach dem Walzen auf ein Kühlbett verbracht und erkalten gelassen werden, weisen durchwegs ein perlitisches Gefüge auf, wobei der Werkstoff dementsprechende mechanische Eigenschaften hat. Um den Schienenverschleiß, insbesondere bei hohen Achslasten sowie gegebenenfalls hoher Geschwindigkeit der Züge und in engen Kurven zu verringern, kann gemäß Stand der Technik durch eine besondere Wärmebehandlung die Gefügestruktur derart eingestellt werden, dass zumindest der beanspruchte Schienenkopf eine hohe Härte, eine hohe Abriebfestigkeit und eine geringe Rissinitiation hat, d.h., dass die Schiene im Gleis verbesserte Gebrauchseigenschaften aufweist.Rails of carbon-containing, optionally low-alloy steels, which are placed on a cooling bed after rolling and allowed to cool, have a pearlitic structure throughout, the material having corresponding mechanical properties. In order to reduce the rail wear, especially at high axle loads and possibly high speed trains and tight curves, the microstructure can be adjusted in such a way that at least the claimed rail head high hardness, high abrasion resistance and a has low Rissinitiation, ie, that the rail in the track has improved performance characteristics.

Eine Einrichtung zum Härten von Schienen durch eine gezielte Ausbildung der Gefügestruktur bei der Abkühlung derselben kann für einen Durchlauf durch eine Sprühkühlvorrichtung oder für ein Tauchen in ein Kühlmittel ausgebildet sein.A device for hardening rails by a targeted formation of the microstructure during the cooling of the same can be designed for a passage through a spray cooling device or for a dip in a coolant.

Durchlauf-Sprühkühlanlagen für eine Schienenhärtung sind in der Regel zwar einfach aufgebaut, haben jedoch den Nachteil eines großen Platzbedarfes, benötigen eine aufwändige Technologie und können auch unerwünschte Güteschwankungen der Schienen in einem Produktionsablauf nicht effizient ausschließen. Weiters kann oft in einer Durchlauf-Sprüheinrichtung eine genaue Abstimmung der Kühlung auf wechselnde Querschnittsprofile wie Zungen-, Rillen-, Vignolschienen und dgl. nicht in erforderlichem Masse erfolgen, wobei auch gegebenenfalls ein Verzug bei der Abkühlung von Querschnittsbereichen im Durchlauf zu ungleichen Kühlmittelbeaufschlagungen und somit zu Härteschwankungen des Werkstoffes über die Schienenlänge führt.Continuous spray cooling systems for rail hardening are generally simple in construction, but have the disadvantage of a large footprint, require a complex technology and can not exclude unwanted Güteschwankungen the rails in a production process not efficient. Furthermore, in a continuous spraying device, precise matching of the cooling to changing cross-sectional profiles, such as tongue, groove, Vignole rails and the like, can not be carried out to the required extent, wherein optionally also a delay in the cooling of cross-sectional areas in the passage to unequal Kühlmittelbeaufschlagungen and thus leads to hardness variations of the material over the rail length.

Es wurde schon vorgeschlagen, bei einer Sprühvergütung der Schiene diese unbewegt zu belassen oder nur geringfügig, bevorzugt um den jeweiligen Sprühmittelabstand, alternierend zu verschieben.It has already been proposed, in the case of spray coating of the rail, to leave it stationary or to shift it only slightly, preferably by the respective spray agent spacing, alternately.

Weiters ist bekannt, eine Vorrichtung zum thermischen Vergüten von Schienen und/oder von Teilen des Querschnitts von Schienen mit einem oder mehreren Tauchbecken für diese auszubilden.Furthermore, it is known to form a device for thermal annealing of rails and / or parts of the cross section of rails with one or more immersion tanks for this.

Blei sequentieller Herstellung von gehärteten Schienen mit hoher Walzleistung wurde gemäss AT 410 549 B schon vorgeschlagen, mindestens zwei Flüssigkeitskühleinrichtungen jeweils parallel zu einem Ausrichtmittel anzuordnen und Quertransportmittel mit Walzgutauflagen zwischen den Rollgangsrollen vorzusehen, um ein Verbringen einer Schiene vom Rollgang zu Manipulatoren der Kühleinrichtung und in der Folge von diesen in den Auflagebereich eines Kühlbettes zu bewerkstelligen. Derart kann eine Steigerung der Durchsatzmenge von Schienen durch die Vergüteanlage erreicht werden. Ein Auslaufen aus dem Walzgerüst, ein Ausrichten und ein Drehen der Schiene am Rollgang ist jedoch bei aktivem Ausrichtmittel nicht uneingeschränkt möglich.Lead of sequential production of hardened rails with high rolling performance was measured according to AT 410 549 B already proposed to arrange at least two liquid cooling devices in each case parallel to an alignment and provide transverse transport means with Walzgutauflagen between the roller conveyor rollers to accomplish a movement of a rail from the roller table to manipulators of the cooling device and in consequence of this in the support area of a cooling bed. In this way, an increase in the throughput of rails through the annealing plant can be achieved. However, leakage from the rolling stand, alignment and rotation of the rail on the roller table is not fully possible with active alignment.

Hier will die Erfindung die Mängel beseitigen und setzt sich zum Ziel, eine Einrichtung der eingangs genannten Art zum Härten von Schienen, insbesondere von profilierten Fahrschienen, zu schaffen, mit welcher bei hohem Durchsatz mit großer Sicherheit qualitativ hochwertige Schienen wirtschaftlich herstellbar sind.Here, the invention seeks to remedy the deficiencies and sets itself the goal of creating a device of the type mentioned for the hardening of rails, especially profiled rails, with which high throughput with high reliability high quality rails can be produced economically.

Im Einzelnen soll eine Anlage entsprechend der Zielsetzung Manipulationsgreifer für ein ungehindert rasches Verbringen der aus den Walzen auslaufenden Schienen aufweisen, welcher eine axiale Ausrichtung derselben ermöglicht, sowie eine maßgenaue Einbringbarkeit in einem Positioniermittel und/oder ein Ablegen auf ein Übergabemittel und/oder auf ein Kühlbett bewerkstelligt Positioniermittel für ein verzugsfreies Spannen und/oder Abschreckmittel, welches mit einem Positioniermittel zusammenwirkend einsetzbar ist, wobei
Steuerungsmittel, durch welche die Anlagenkomponenten aufeinander für ein zyklisches Tauchen des Kopfes und/oder anderer Teile des Querschnittes und/oder der gesamten Oberfläche der Schiene in Verlauf von deren Abkühlung abstimmbar sind, aufweisen.Specifically, a plant according to the objective of manipulation gripper for unhindered rapid movement of the expiring from the rollers rails, which allows axial alignment of the same, and a dimensionally correct applicability in a positioning and / or depositing on a transfer means and / or on a cooling bed accomplishes positioning means for a distortion-free clamping and / or quenching means, which is cooperatively usable with a positioning means, wherein
Control means by which the plant components are tunable to each other for a cyclic dipping of the head and / or other parts of the cross-section and / or the entire surface of the rail in the course of their cooling.

Das Ziel wird bei einer gattungsgemäßen Einrichtung dadurch erreicht, dass im Becken und/oder in den Zuleitungen Ableitungsmittel für das Kühlmittel angeordnet sind, die zur kurzzeitigen Entleerung des Beckens offenstellbar sind. So kann z.B. bei einem Störungsfall in kürzest möglicher Zeit das Kühlmittel aus dem Becken ausgetragen werden, wodurch die Schienenhärtung unterbrochen ist. Diese Härtungsunterbrechung erbringt einen Schutz der Einrichtung und ein leichteres Ausbringen einer bei Anlagenstörung im Becken gehaltenen Schiene.The goal is achieved in a generic device characterized in that discharge means are arranged for the coolant in the basin and / or in the supply lines, which are open for short-term emptying of the basin. Thus, for example, in the event of a malfunction, the coolant can be discharged from the basin in the shortest possible time, as a result of which the rail hardening is interrupted. This cure interruption provides protection the device and easier deployment of a held in case of system failure in the rail rail.

Nach einer bevorzugten Ausführungsform der Erfindung weist das Becken bodenseitig zumindest einen Kühlmitteleinlass je 1.5m Beckenlänge auf, durch welchen jeweils ein geregelter Kühlmittelstrom zuführbar ist, wobei vorzugsweise im Becken oberhalb der Kühlmitteleinlässe zu diesem abgedichtet distanziert zumindestens eine gelochte bzw. durchströmbare Platte angeordnet und/oder in Fließrichtung des Kühlmittels nachgeordnet eine Platte mit Düsen oder mit Kanälen eingesetzt ist (sind).
Durch diese erfindungsgemäßen Maßnahmen kann die örtliche Kühlintensität des Kühlmittels für die Querschnittsoberflächenbereiche über die Schienenlängserstreckung gleichgehalten und in der Folge gewünscht hohe gleichbleibende Güte in der Herstellung von gehärteten Schienen erreicht werden.According to a preferred embodiment of the invention, the basin on the bottom side at least one coolant inlet per 1.5m basin length, through which a regulated coolant flow can be fed, preferably arranged in the tank above the coolant inlet to this sealed spaced at least one perforated or durchströmbare plate and / or in the flow direction of the coolant downstream of a plate with nozzles or with channels is (are) used.
By means of these measures according to the invention, the local cooling intensity of the coolant can be kept the same for the cross-sectional surface areas over the longitudinal rail extension and consequently high uniform quality in the production of hardened rails can be achieved.

Im Folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg darstellenden Zeichnungen näher erläutert, wobei hilfsweise im Text eine Bezugszeichenliste nachgeordnet ist.In the following, the invention will be explained in more detail with reference to drawings showing only one embodiment, wherein, in the alternative, a list of reference symbols is subordinate in the text.

Es zeigenShow it

  • Fig. 1 Einrichtung zum Härten von Schienen im Querschnitt senkrecht zur Schienenlängsachse Fig. 1 Device for hardening rails in cross section perpendicular to the rail longitudinal axis
  • Fig. 2 Schiene in Zangen eines Manipulationsgreifers Fig. 2 Rail in pliers of a manipulator gripper
  • Fig. 3 Positioniermittel und Becken senkrecht zur Schienenlängsachse Fig. 3 Positioning means and pelvis perpendicular to the rail longitudinal axis
  • Fig. 4 Querschnittsprofile von Schienen Fig. 4 Cross-section profiles of rails

Zur Erleichterung des Überblickes hinsichtlich der Funktionsteile der Einrichtung soll die nachfolgend angegebene Bezugszeichenliste dienen:

  • 1 Schiene
  • 11 Schienenfuß
  • 12 Schienenkopf
  • 1Z Zungenschiene
  • 1 R Rillenschiene
  • 1 V Vignolschiene
  • y Fußmittelachse
  • x Kopfmittelachse
  • A Achsabweichung
  • H Schienenhöhe
  • 2 Rollgang
  • 21 Querverschiebemittel
  • 3 Maniulationsgreifer
  • 30 Zangen
  • 31,31' Greifarme
  • 311,311' Greifteile
  • 312,312' Zentrierteile
  • 4 Positioniermittel
  • 40,40' Haltekomponenten
  • 41,41' Anlagen
  • 42,42' Spannelemente
  • 5 Becken (Trog)
  • 50 Kühlmittel
  • 51 Durchströmbare Platte
  • 52 Düsenplatte
  • 53 Kühlmittellenkeinrichtung
  • 54 Kühlmitteleinlass
  • 6 Kühlbett
  • 61 Übergabemittel
To facilitate the overview with regard to the functional parts of the device, the following list of reference numbers is intended to serve:
  • 1 rail
  • 11 rail foot
  • 12 rail head
  • 1Z tongue rail
  • 1 R grooved rail
  • 1 V Vignol rail
  • y foot center axis
  • x head center axis
  • A axis deviation
  • H rail height
  • 2 roller table
  • 21 transverse shifting means
  • 3 manipulation gripper
  • 30 pliers
  • 31.31 'gripping arms
  • 311,311 'gripping parts
  • 312,312 'centering parts
  • 4 positioning means
  • 40.40 'holding components
  • 41.41 'plants
  • 42.42 'clamping elements
  • 5 pools (trough)
  • 50 coolants
  • 51 Breakthrough plate
  • 52 nozzle plate
  • 53 Kühlmittelkekeinrichtung
  • 54 coolant inlet
  • 6 cooling bed
  • 61 transfer means

In Fig. 1 ist im Querschnitt eine Einrichtung zum Härten von Schienen dargestellt. Eine Schiene 1 wird nach dem Stich im letzten Walzkaliber (nicht dargestellt) auf einen Rollgang 2 verbracht und durch ein Querschiebemittel 21 auf diesem positioniert.In Fig. 1 is shown in cross section a device for hardening rails. A rail 1 is spent after the stitch in the last rolling caliber (not shown) on a roller table 2 and positioned by a transverse pushing means 21 on this.

Von einer Position am Rollgang 2 erfolgt eine Aufnahme einer Schiene 1 mittels eines Manipulationsgreifers 3, welcher über die Länge der Schiene 1, wie in Fig. 2 dargestellt, eine Vielzahl von Zangen 30 mit Greifarmen 31,31' besitzt. Die Greifarme 31,31' sind jeweils mit Zentrierteilen 312,312' zur axialen Ausrichtung eines Schienenkopfes 12 und mit Greifteilen 311,311' für ein hängendes Halten eines Schienenfußes 11 ausgeformt, wobei ein Abstand von den Flanschenden vom Schienenfuß 11 zu den Greifarmen 31,31' vergrössert ist, um unterschiedliche Schienenprofile, wie in Fig. 4 als 1Z, 1R, 1V, dargestellt, kopfseitig axial durch Zentrierteile 312,312' von Zangen 30 auszurichten.From a position on the roller table 2 is a recording of a rail 1 by means of a manipulation gripper 3, which over the length of the rail 1, as in Fig. 2 shown, a plurality of pliers 30 with gripping arms 31,31 'has. The gripper arms 31,31 'are each formed with centering 312,312' for axial alignment of a rail head 12 and with gripping parts 311,311 'for a suspended holding a rail foot 11, wherein a distance from the flange of the rail foot 11 to the gripping arms 31,31' is increased to different rail profiles, as in Fig. 4 as 1Z, 1R, 1V, shown, axially align the head side by centering parts 312.312 'of pliers 30.

Ein in Fig. 1 dargestellter Manipulationsgreifer 3 ist derart ausgebildet, dass dieser eine Schiene 1 in einer Liegeposition am Rollgang 2 von diesem mittels einer Vielzahl von Zangen 30 über die Schienenlänge positionsgerecht aufgreift und durch Halten mit den Greifarmen 31,31' axial ausrichtet. Die Zangen 30 sind gemeinsam durch maschinentechnisch ausgebildete Teile bei gleichzeitigem Spannen der Zentrierteile 312,312' senkrecht zur Schienenaxe vertikal, horizontal und drehend bewegbar, sodass eine seitlich liegende Schiene vom Rollgang 2 aufgenommen, axial gerichtet, in eine hängende Position mit horizontaler Fußfläche gedreht, in ein Positioniermittel 4, wie in Fig. 3 gezeigt, auf Anlagen 41,41' einbringbar ist.An in Fig. 1 illustrated manipulation gripper 3 is designed such that this a track 1 in a lying position on the roller table 2 of this by means of a plurality of pliers 30 on the rail length correctly picks up and aligned by holding the gripping arms 31,31 'axially. The pliers 30 are together by machine-trained parts while clamping the Centering members 312, 312 'are vertically, horizontally and rotationally movable perpendicular to the rail axis, such that a laterally located rail received by the roller table 2, axially directed, turned to a horizontal footing suspended position, is positioned in a positioning means 4, as in FIG Fig. 3 shown on facilities 41,41 'can be introduced.

Nach gleicher Art ist, wie Fig. 1 zeigt, eine Schiene 1,1' vom Rollgang 2 oder von einem Positioniermittel 4 aufnehmbar und auf ein Kühlbett 6 oder auf ein Übergabemittel 61 ablegbar.After the same kind is how Fig. 1 shows, a rail 1,1 'from the roller table 2 or by a positioning means 4 can be received and stored on a cooling bed 6 or on a transfer means 61.

Ein Positioniermittel 4 ist in Fig. 3 dargestellt und weist über die Länge einer Schiene 1 Haltekomponenten 40, 40' mit Anlagen 41,41' auf, in welche die Schiene 1 axial gerichtet einlegbar ist. Spannelemente 42,42' sind in Richtung zu den Anlagen 41,41' hin an die Flanschenden eines Schienenfußes 11 anstellbar. Positioniermittel 4 und Becken 5 mit Kühlmittel 50 wirken beim Härtevorgang von Schienen 1 zusammen.A positioning means 4 is in Fig. 3 shown and has over the length of a rail 1 holding components 40, 40 'with systems 41,41', in which the rail 1 is inserted axially directed. Clamping elements 42, 42 'can be adjusted in the direction of the systems 41, 41' towards the flange ends of a rail foot 11. Positioning means 4 and 5 basin with coolant 50 cooperate during the hardening process of rails 1.

Wie aus Fig. 1 hervorgeht, sind in der Einrichtung mindestens zwei Becken 5 mit Kühlmittel 50 axparallel nebeneinander angeordnet, wobei jeweils der für eine Härtung einer Schiene 1 nutzbare Teil des Kühlmittels 50 im Becken 5 eine Tiefe aufweist, die größer ist als die maximale Schienenhöhe, um ein vollumfängliches Tauchen derselben in die Kühlflüssigkeit 50 zu ermöglichen.How out Fig. 1 shows in the device at least two basins 5 with coolant 50 axparallel arranged side by side, each of which is usable for curing a rail 1 part of the coolant 50 in the basin 5 has a depth which is greater than the maximum rail height to a full immersion allow the same in the cooling liquid 50.

Wie in Fig. 3 dargestellt, sind Kühlmitteleinlass 54 und Kühlmittellenkeinrichtungen 53 im Becken 5 bodenseitig angeordnet, wobei zur Vergleichmäßigung der Strömungsgeschwindigkeit des Kühlmittels 50 beim Anströmen einer Schiene 1 über die gesamte Länge des Beckens 5 durchströmbare Platten 51 und/oder Düsenplatten 52 zum Tauchraum hin einsetzbar sind.As in Fig. 3 shown, coolant inlet 54 and Kühlmittelellenkeinrichtungen 53 are arranged on the bottom side in the basin 5, wherein to smooth out the flow velocity of the coolant 50 during flow of a rail 1 over the entire length of the basin 5 through-flow plates 51 and / or nozzle plates 52 are used for diving down.

Positioniermittel 4 für Schienen 1 und Becken 5 mit Kühlmittel 50 wirken, wie vorher erwähnt, zusammen und sind mittels Steuereinrichtungen (nicht dargestellt) relativ zueinander bewegbar und zumindest in den Positionen "Tauchen von Querschnittsteilen" und/oder "Kopfhärtung" und/oder "vollumfängliche Tauchhärtung" für Zeitspannen positionierbar.Positioning means 4 for rails 1 and 5 with refrigerant tank 50, as previously mentioned, together and by means of control means (not shown) are relatively movable and at least in the positions "diving of cross-sectional parts" and / or "head hardening" and / or "full Dip hardening "can be positioned for periods.

Für unterschiedliche Querschnittsprofile von Schienen 1, wie dies für eine Zungenschiene 1Z, eine Rillenschiene 1R im Vergleich mit einer Vignolschiene 1 V in Fig. 4 dargestellt ist, können Achsabweichungen Az, Ar zwischen Kopfachse x und Fußachse y gegeben sein. Um jeweils unabhängig vom Querschnittsprofil zentral die Hauptmasse eines Schienenkopfes 12 im Tauchbecken 5 einer Anströmung vom Kühlmittel 50 auszusetzen, ist eine den Achsabweichungen Az,Ax entsprechende horizontale, axparallele Positionierung von Positoniermittel 4 und Becken 5 einrichtbar..For different cross-sectional profiles of rails 1, as for a tongue rail 1Z, a grooved rail 1R in comparison with a Vignolschiene 1 V in Fig. 4 Axis deviations Az, Ar between head x and foot axis y can be represented be given. To each independent of the cross-sectional profile centrally suspend the main mass of a rail head 12 in the dip tank 5 of a flow from the coolant 50, a axis deviations Az, Ax corresponding horizontal, axparallele positioning of positioning means 4 and 5 pelvis can be set ..

Claims (2)

  1. A device for hardening rails (1), particularly profiled tracks, optionally with a respectively different shape of cross-section and a length greater than 50m, by cooling of at least part of the respective rail cross-section over the entire rail length in a cooling medium, consisting of transverse displacement means (21) in the region of a roller bed (2), straightening means and manipulation gripper (3) to take the rail in the device, at least one positioning means (4), comprising a respective basin (5) or trough with cooling medium as well as a cooling bed (6), wherein at least two basins (5) with positioning means (4) are axially parallel arranged horizontally side by side at the same level, and portion of the cooling medium usable for hardening rails in the basin (5) has a depth, which exceeds the height of the largest rail profile by at least 10%, characterised in that discharge means for the cooling medium are arranged in the basin (5) and/or in the feed conduit which may be opened for short-term drain of the basin (5).
  2. Device according to claim 1, characterised in that the basin (5) at the side of the bottom comprises at least one cooling medium inlet per 1.5 basin length, through which a respective controlled cooling medium flow may be supplied, wherein preferably at least one plate (51), which is perforated or capable of being flown through, is arranged in the basin (5) above the cooling medium inlets in a sealed manner to it in a spaced way and/or a plate (52) having nozzles or having channels is postponed in flowing direction of the cooling medium is or are inserted.
EP10450110A 2008-02-04 2009-01-27 Device for hardening rails Active EP2243565B1 (en)

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PL10450110T PL2243565T3 (en) 2008-02-04 2009-01-27 Device for hardening rails
SI200930242T SI2243565T1 (en) 2008-02-04 2009-01-27 Device for hardening rails

Applications Claiming Priority (2)

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AT0017508A AT505930B1 (en) 2008-02-04 2008-02-04 DEVICE FOR HARDENING RAILS
EP09450016A EP2085160B1 (en) 2008-02-04 2009-01-27 Device for hardening rails

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EP09450016A Active EP2085160B1 (en) 2008-02-04 2009-01-27 Device for hardening rails
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EP10450111A Active EP2243566B1 (en) 2008-02-04 2009-01-27 Device for hardening rails
EP10450109A Active EP2241384B1 (en) 2008-02-04 2009-01-27 Device for hardening rails

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US (2) US8226883B2 (en)
EP (4) EP2085160B1 (en)
JP (4) JP5163987B2 (en)
KR (1) KR101221567B1 (en)
CN (4) CN102010969B (en)
AT (4) AT505930B1 (en)
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RU (1) RU2388834C1 (en)
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AU2011200892B2 (en) 2014-06-12
SI2243566T1 (en) 2012-10-30
CA2742939A1 (en) 2009-08-04
CA2742873C (en) 2013-04-02
CN101509060B (en) 2011-04-20
SI2243565T1 (en) 2012-06-29
US8226883B2 (en) 2012-07-24
JP2012183589A (en) 2012-09-27
DK2241384T3 (en) 2012-07-09
CA2742949C (en) 2013-04-02
AU2015203117A1 (en) 2015-07-09
CA2652329A1 (en) 2009-08-04
JP2009185385A (en) 2009-08-20
CA2742873A1 (en) 2009-08-04
CN102010969B (en) 2022-06-03
AU2015203117B2 (en) 2017-06-08
PL2241384T3 (en) 2012-08-31
JP5163987B2 (en) 2013-03-13
HRP20120493T1 (en) 2012-07-31
RU2388834C1 (en) 2010-05-10
KR20090085544A (en) 2009-08-07
TW200946689A (en) 2009-11-16
PL2243566T3 (en) 2012-11-30
PT2085160E (en) 2012-06-21
US20120168043A1 (en) 2012-07-05
CA2652329C (en) 2012-03-27
EP2243566A1 (en) 2010-10-27
PT2243566E (en) 2012-10-02
US8557172B2 (en) 2013-10-15
CN102010970B (en) 2013-04-03
AT505930B1 (en) 2009-05-15
SI2085160T1 (en) 2012-07-31
ES2384441T3 (en) 2012-07-04
EP2241384A1 (en) 2010-10-20
ATE550112T1 (en) 2012-04-15
HRP20120750T1 (en) 2012-10-31
DK2243566T3 (en) 2012-09-24
JP5551735B2 (en) 2014-07-16
AU2011200892A1 (en) 2011-03-24
AU2011200883A1 (en) 2011-03-24
AT505930A4 (en) 2009-05-15
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JP5551736B2 (en) 2014-07-16
HRP20120492T1 (en) 2012-07-31
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PT2241384E (en) 2012-04-16
AU2009200367B2 (en) 2011-03-31
KR101221567B1 (en) 2013-01-14
HRP20120590T1 (en) 2012-08-31
ATE554867T1 (en) 2012-05-15
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BR122019018872B1 (en) 2020-11-24
DK2085160T3 (en) 2012-07-30
CN102010968B (en) 2013-11-06
CA2742949A1 (en) 2009-08-04
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ES2382728T3 (en) 2012-06-12
BRPI0900474B1 (en) 2020-02-11
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PT2243565E (en) 2012-05-07
US20090200713A1 (en) 2009-08-13
CN102010970A (en) 2011-04-13
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AU2011200883B2 (en) 2014-12-04
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CN102010969A (en) 2011-04-13
JP2012193455A (en) 2012-10-11

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