EP2085160A1 - Device for hardening rails - Google Patents

Device for hardening rails Download PDF

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Publication number
EP2085160A1
EP2085160A1 EP09450016A EP09450016A EP2085160A1 EP 2085160 A1 EP2085160 A1 EP 2085160A1 EP 09450016 A EP09450016 A EP 09450016A EP 09450016 A EP09450016 A EP 09450016A EP 2085160 A1 EP2085160 A1 EP 2085160A1
Authority
EP
European Patent Office
Prior art keywords
rail
basin
coolant
length
cooling
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
EP09450016A
Other languages
German (de)
French (fr)
Other versions
EP2085160B1 (en
Inventor
Hans Ing. Pfeiler
Norbert Köck
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.)
Voestalpine Rail Technology GmbH
Original Assignee
Voestalpine Schienen GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40469890&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2085160(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to DK10450111.9T priority Critical patent/DK2243566T3/en
Priority to DK10450109.3T priority patent/DK2241384T3/en
Priority to EP10450109A priority patent/EP2241384B1/en
Priority to PL10450110T priority patent/PL2243565T3/en
Priority to PL09450016T priority patent/PL2085160T3/en
Priority to EP10450110A priority patent/EP2243565B1/en
Priority to EP10450111A priority patent/EP2243566B1/en
Priority to SI200930265T priority patent/SI2085160T1/en
Priority to DK10450110.1T priority patent/DK2243565T3/en
Priority to PL10450111T priority patent/PL2243566T3/en
Application filed by Voestalpine Schienen GmbH filed Critical Voestalpine Schienen GmbH
Priority to PL10450109T priority patent/PL2241384T3/en
Publication of EP2085160A1 publication Critical patent/EP2085160A1/en
Publication of EP2085160B1 publication Critical patent/EP2085160B1/en
Application granted granted Critical
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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.
  • 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 hingeschwankungen the rails in a production process not efficient. Furthermore, a precise tuning of the cooling to changing cross-sectional profiles such as tongue, groove, Vignol rails and the like. Not often done in a continuous sprayer to the extent necessary, with also possibly a delay in the cooling of cross-sectional areas in the flow to unevendeffenbeetzschschschitch and thus leads to hardness variations of the material over the rail length.
  • 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.
  • the goal is achieved in a generic device, when the manipulation gripper is formed from pliers having gripping arms, which are each formed with centering parts for an axial alignment of the head of the rail and with gripping parts for cross-aligned holding the rail foot and thus a dimensionally accurate introduction of Rail in the positioning and a determination of the same is possible in this.
  • the pliers are at the same time rotatable in the same direction about a common axis at least with an angular amount to align rails from different roller positions, eg from a reclining position on the head side, hold cross-section aligned and accurately by axial rotation to be able to bring into a positioning.
  • the rail In the course of the discharge of the rail from the positioning means can be stored by rotation of the pliers, the rail with advantage in a desired cross-sectional position on a transfer agent and / or on a cooling bed.
  • the pliers are each formed with a similarly movable or engageable gripping arm.
  • the manipulation gripper and the associated transfer means can be moved transversely with more than the greatest rail height over the roller table and only the gripping arms of the pliers can be lowered vertically between the rollers of the roller table for receiving the rail, loading of the roller table end area from the rollers remains leaking rails undisturbed with respect to a simultaneous placement of rails in the hardening device, which ensures high flexibility and performance of the same or a high throughput.
  • the object is inventively further achieved in a device of the type mentioned above for the hardening of rails, that the positioning horizontally aligned a plurality of holding components with facilities for the foot of a hanging introduced rail, which rail foot respectively on the plants by releasable clamping elements or Hold-down delay-proof in the axial direction of the rail can be fixed horizontally.
  • the advantages achieved with the positioning means according to the invention are essentially to be seen in the fact that they are formed from holding components which are aligned horizontally with great accuracy, each having two installations and two hold-downs.
  • Such a rail from the rolling heat with austenitic structure which is inserted axially aligned by a manipulation gripper in a certain desired position in the holding components, each with two systems for the foot of the rail, by two clamping elements each shift and be determined against twisting, which determination is maintained even with an action of large forces, eg in a cooling phase of the rail head, with high accuracy.
  • the holding components and the hold-down or clamping elements for the rail foot are provided in the longitudinal extent of the positioning respectively selbarts so that advantageously no bending moments arise in the determination of the rail.
  • the rail is held immovably on both sides by a system and a releasable clamping element for the rail of a component of the positioning and the other facilities and elements of the respective components allow a shift in the rail longitudinal direction.
  • the rail can be stabilized in a desired cross-sectional position, whereby the shortening given by the material contraction takes place by a displacement free of surface damage.
  • a goal is achieved in a device for hardening of rails according to the preamble of the main claim also in that at least two basins with positioning axparallel side by side at the same height are arranged horizontally and usable for a rail hardening part of the coolant in the basin has a depth which the height of the largest rail profile exceeds by at least 10%.
  • the advantages of this feature of the invention are mainly due to a high performance achieved by means of two basins, which are arranged axparallel, and in particular flexibility of the hardening device and by their universal use possible by means of controllable positioning means, optionally for a sequential, full cooling and / or cooling of parts the cross section, for example, only the head or the running surface of a rail in the cooling medium. It is also possible with the device according to the invention to apply a plurality of immersion parameters for the rails in the coolant during their curing and thus to achieve a desired microstructure distribution over the rail cross-section.
  • the basin on the bottom side at least one coolant inlet per 1.5m basin length, through which a regulated flow of coolant can be fed, preferably in the tank above the coolant inlet to this sealed spaced at least one perforated or Wegströmbare plate arranged 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 for the cross-sectional surface areas can be kept the same over the longitudinal rail extension and consequently high uniform quality in the production of hardened rails can be achieved.
  • discharge means for the refrigerant are arranged in the basin and / or in the supply lines, which can be opened for short-term emptying of the basin, e.g. in the event of a malfunction, the coolant is discharged from the tank in the shortest possible time, whereby the rail hardening is interrupted.
  • This cessation of interruption provides protection of the device and makes it easier to deploy a rail held in the pool during system failure.
  • the stated object of the invention to provide a new device for hardening rails with different effective local cooling intensities over the cross section is also achieved by the fact that the basin and the installations and the releasable clamping means for the foot of the hanging rail of all components of the positioning means Insertion of the rail in the coolant simultaneously vertically controlled relative to each other movable and a respective vertical holding position and time are adjustable in this.
  • such desired structural formations and also structural regions with different microstructures can be achieved over the cross-section of rails, whereby such rails can be produced with a property profile designed to be favorable for particular stresses.
  • the system and the clamping means for the foot of the hanging rail of all components of the positioning means are simultaneously horizontally adjustable transversely to the pelvis.
  • FIG. 1 is shown in cross section an embodiment of the invention.
  • 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.
  • FIG. 1 illustrated inventive manipulator 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 vertically, horizontally and rotationally movable, so that a laterally located rail from the roller table 2, axially directed, in a suspended position with a horizontal foot surface together by machine-trained parts with simultaneous clamping of the centering parts 312.312 'perpendicular to the rail axis rotated, in a positioning means 4, as in 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.
  • An inventive 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 tanks 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 of the same in to allow 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 "dipping of cross-sectional parts" and / or “head hardening” and / or “full Dip hardening "can be positioned for periods.
  • a grooved rail 1 R in comparison with a Vignolschiene 1 V in Fig. 4 can Ax deviations A Z , A R between Kopfaxe x and preparedaxe y be given.
  • a Ax deviations Az, Ax corresponding horizontal, axparallel 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)

Abstract

The device comprises transverse displacement means (21) within the region of a roller table (2), direction means, a manipulation gripper (3) for transferring a profiled running rails (1) into the device, and a positioning means (4) having a basin (5) and/or trough with cooling agent and a cooling bed (6). The rails have different cross-sectional shape and a length of larger than 50 m by cooling a part of the respective rail cross section over the total rail length in a cooling agent. The manipulation gripper is formed from shaped, aligned and movably operated tongs, which comprises grip arms. The device comprises transverse displacement means (21) within the region of a roller table (2), direction means, a manipulation gripper (3) for transferring a profiled running rails (1) into the device, and a positioning means (4) having a basin (5) and/or trough with cooling agent and a cooling bed (6). The rails have different cross-sectional shape and a length of larger than 50 m by cooling a part of the respective rail cross section over the total rail length in a cooling agent. The manipulation gripper is formed from shaped, aligned and movably operated tongs, which comprise grip arms, which are formed with centering parts for axial aligning of the head of the rail and with grip part for cross-sectional aligning of the rail foot. The manipulation gripper is formed with greater than two tongs, which have a basin length of 10 m and are formed in a homogenously movable and/or positionable grip arm. The manipulation gripper and the placing means located with more than the rail height are transversely movable over the roller table and the grip arms of the tons are vertically lowerable between the rollers of the roller table for taking the rail. The positioning means comprises horizontally aligning holding components with plants for the foot of the rail, where the foot is fixed on the plants by detachable clamping devices and/or chain guide. The part of the cooling agent usable for hardening the rail basin has a depth, which 10% exceeds the height of the largest rail profiles. The basin comprises a cooling agent inlet at the bottom having 1.5 m basin length. A punched and/or a flow throughable plate are arranged in the basin above the cooling agent inlets. An injector plate with channels is inserted in the direction of flow of the cooling agent. Outlet means for the cooling agent are arranged in the basin. The plants, the clamping means and all components of the positioning means are adjustable horizontally in the direction of the basin.

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, a precise tuning of the cooling to changing cross-sectional profiles such as tongue, groove, Vignol rails and the like. Not often done in a continuous sprayer to the extent necessary, with also possibly a delay in the cooling of cross-sectional areas in the flow to uneven 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.

Bei 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.In sequential production of hardened rails with high rolling performance was 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.In detail, a plant should be designed according to the objective
  • Have manipulation gripper for unhindered rapid movement of the expiring from the rollers rails, which allows axial alignment thereof, as well as a dimensionally accurate Einbringbarkeit accomplished in a positioning and / or depositing on a transfer means and / or on a cooling bed
  • Positioning means for distortion-free clamping and / or
  • Quenching agent, which is cooperatively employable with a positioning agent, wherein
  • Control means by which the plant components are tunable to each other for 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,
exhibit.

Das Ziel wird bei einer gattungsgemäßen Einrichtung erreicht, wenn der Manipulationsgreifer aus Zangen gebildet ist, die Greifarme aufweisen, die jeweils mit Zentrierteilen für ein axiales Ausrichten des Kopfes der Schiene und mit Greifteilen für ein querschnittsfluchtendes Halten des Schienenfußes ausgeformt sind und derart eine maßgenaue Einbringung der Schiene im Positioniermittel und eine Festlegung derselben in diesem ermöglicht ist.The goal is achieved in a generic device, when the manipulation gripper is formed from pliers having gripping arms, which are each formed with centering parts for an axial alignment of the head of the rail and with gripping parts for cross-aligned holding the rail foot and thus a dimensionally accurate introduction of Rail in the positioning and a determination of the same is possible in this.

Die Vorteile, die mit einem erfindungsgemäßen Manipulationsgreifer erreicht werden, sind im Wesentlichen darin zu sehen, dass dessen fluchtende Zangen Greifarme mit Zentrierteilen und Greifteilen aufweisen, sodass die Schiene unmittelbar nach dem letzten Walzstich und deren Auslaufen am Rollgang in der Walzhitze, also im duktilen bzw. weitgehend plastischen Zustand des Werkstoffes beim Schließen der Zangenteile vorerst kopfseitig axial ausrichtbar ist, worauf ein querschnittsfluchtendes Halten des Schienenfußes erfolgt und dabei Schienen nach axialem Drehen immer gleicher Art in ein Positioniermittel eingebracht oder auf ein Kühlbett aufgelegt werden können. Diese Art der Schieneneinbringung in ein Positioniermittel mit horizontal ausgerichtetem, fluchtendem Schienenfuß hängend hat den weiteren Vorteil, dass in diesem die Lage des Schienenfußes immer gleichartig vorliegt und diese gleichbleibende Lage auch bei unsymmetrischen Querschnittsprofilen gesichert werden kann.The advantages that are achieved with a manipulation gripper according to the invention are essentially to be seen in that its aligned pliers have gripping arms with centering parts and gripping parts, so that the rail immediately after the last rolling pass and their expiry on the roller table in the rolling heat, ie in the ductile or ., largely plastic state of the material when closing the pliers parts at first head side axially aligned, where a cross-aligned alignment of the rail takes place while rails after axial rotation always introduced the same kind in a positioning or can be placed on a cooling bed. This type of rail insertion into a positioning with horizontally aligned, aligned rail foot hanging has the further advantage that in this the position of the rail foot is always the same and this constant position can be secured even with asymmetrical cross-sectional profiles.

Die Zangen sind dabei um eine gemeinsame Axe zumindest mit einem Winkelbetrag gleichzeitig gleichsinnig drehbar ausgeführt, um Schienen aus unterschiedlichen Rollgang-Positionen, z.B. aus einer Liegeposition kopfseitig ausrichten, querschnittsfluchtend halten und durch axiales Drehen maßgenau in ein Positioniermittel einbringen zu können.The pliers are at the same time rotatable in the same direction about a common axis at least with an angular amount to align rails from different roller positions, eg from a reclining position on the head side, hold cross-section aligned and accurately by axial rotation to be able to bring into a positioning.

Im Zuge des Austrages der Schiene aus dem Positioniermittel kann durch eine Drehung der Zangen die Schiene mit Vorteil in einer gewünschten Querschnitts- Lage auf ein Übergabemittel und/oder auf einem Kühlbett abgelegt werden.In the course of the discharge of the rail from the positioning means can be stored by rotation of the pliers, the rail with advantage in a desired cross-sectional position on a transfer agent and / or on a cooling bed.

Mit vorteilhaft hoher Präzision kann ein Verbringen von ausgerichteten Schienen in kurzer Zeit erfolgen, wenn der Manipulationsgreifer mit mehr als zwei Zangen je 10m Beckenlänge gebildet ist.With advantageously high precision, it is possible to dispose of aligned rails in a short time if the manipulation gripper is formed with more than two pliers per 10 m basin length.

Sowohl funktionstechnisch als auch im Hinblick auf das Ausricht- und Greifverhalten ist es günstig, wenn die Zangen mit jeweils einem gleichartig bewegbaren bzw. anstellbaren Greifarm gebildet sind.Both functionally and in terms of the alignment and gripping behavior, it is advantageous if the pliers are each formed with a similarly movable or engageable gripping arm.

Wenn in vorteilhafter Weise der Manipulationsgreifer und die zugehörigen Verbringungsmittel beabstandet mit mehr als der größten Schienenhöhe über dem Rollgang querbewegbar und nur die Greifarme der Zangen teilweise zwischen die Rollen des Rollganges zum Aufnehmen der Schiene vertikal absenkbar sind, bleibt eine Beaufschlagung des Rollgangendbereiches mit aus den Walzen auslaufenden Schienen ungestört bezüglich eines gleichzeitigen Verbringens von Schienen in der Härteeinrichtung, was eine hohe Flexibilität und Leistung derselben bzw. einen hohen Durchsatz sicherstellt.If, advantageously, the manipulation gripper and the associated transfer means can be moved transversely with more than the greatest rail height over the roller table and only the gripping arms of the pliers can be lowered vertically between the rollers of the roller table for receiving the rail, loading of the roller table end area from the rollers remains leaking rails undisturbed with respect to a simultaneous placement of rails in the hardening device, which ensures high flexibility and performance of the same or a high throughput.

Das Ziel wird bei einer Einrichtung der eingangs genannten Art zum Härten von Schienen erfindungsgemäß weiters dadurch erreicht, dass das Positioniermittel horizontal fluchtend eine Vielzahl von Haltekomponenten mit Anlagen für den Fuß einer hängend eingebrachten Schiene aufweist, welcher Schienenfuß jeweils auf den Anlagen durch lösbare Spannelemente bzw. Niederhalter verzugsgesichert in Axrichtung der Schiene horizontal festlegbar ist.The object is inventively further achieved in a device of the type mentioned above for the hardening of rails, that the positioning horizontally aligned a plurality of holding components with facilities for the foot of a hanging introduced rail, which rail foot respectively on the plants by releasable clamping elements or Hold-down delay-proof in the axial direction of the rail can be fixed horizontally.

Die mit dem erfindungsgemäßen Positioniermittel erreichten Vorteile sind im Wesentlichen darin zu sehen, dass dieses aus mit großer Genauigkeit horizontal fluchtenden Haltekomponenten mit jeweils zwei Anlagen und zwei Niederhalter gebildet sind. Derart kann eine Schiene aus der Walzhitze mit austenitischem Gefüge, die von einem Manipulationsgreifer axial ausgerichtet in einer bestimmten gewünschten Lage in die Haltekomponenten mit jeweils zwei Anlagen für den Fuß der Schiene eingelegt wird, durch jeweils zwei Spannelemente verschiebungs- und verwindungssicher festgelegt werden, welche Festlegung auch bei einem Einwirken großer Kräfte, z.B. in einer Abkühlphase des Schienenkopfes, mit hoher Genauigkeit erhalten bleibt. Die Haltekomponenten und die Niederhalter bzw. Spannelemente für den Schienenfuß sind in Längserstreckung des Positioniermittels jeweils gleicherarts vorgesehen, sodass mit Vorteil keinerlei Biegemomente bei der Festlegung der Schiene entstehen.The advantages achieved with the positioning means according to the invention are essentially to be seen in the fact that they are formed from holding components which are aligned horizontally with great accuracy, each having two installations and two hold-downs. Such a rail from the rolling heat with austenitic structure, which is inserted axially aligned by a manipulation gripper in a certain desired position in the holding components, each with two systems for the foot of the rail, by two clamping elements each shift and be determined against twisting, which determination is maintained even with an action of large forces, eg in a cooling phase of the rail head, with high accuracy. The holding components and the hold-down or clamping elements for the rail foot are provided in the longitudinal extent of the positioning respectively selbarts so that advantageously no bending moments arise in the determination of the rail.

Es hat sich als günstig erwiesen, wenn die Schiene beidseitig durch eine Anlage und ein lösbares Spannelement für den Schienenfuß einer Komponente des Positioniermittels unbewegbar gehalten ist und die übrigen Anlagen und Elemente der jeweiligen Komponenten eine Verschiebung in Schienenlängsrichtung zulassen. Dadurch kann auch während der Abkühlung bzw. Wärmebehandlung die Schiene in einer gewünschten Querschnitts- Position stabilisiert sein, wobei die durch die Werkstoffkontraktion gegebene Verkürzung durch eine Verschiebung frei von Oberflächenbeschädigungen erfolgt.It has proved to be advantageous if the rail is held immovably on both sides by a system and a releasable clamping element for the rail of a component of the positioning and the other facilities and elements of the respective components allow a shift in the rail longitudinal direction. As a result, even during the cooling or heat treatment, the rail can be stabilized in a desired cross-sectional position, whereby the shortening given by the material contraction takes place by a displacement free of surface damage.

Erreicht wird ein Ziel bei einer Einrichtung zum Härten von Schienen gemäß Oberbegriff des Hauptanspruchs auch dadurch, dass mindestens zwei Becken mit Positioniermitteln axparallel nebeneinander auf gleicher Höhe horizontal angeordnet sind und der für eine Schienenhärtung nutzbare Teil des Kühlmittels im Becken eine Tiefe aufweist, welche die Höhe des größten Schienenprofiles um mindestens 10% übersteigt.A goal is achieved in a device for hardening of rails according to the preamble of the main claim also in that at least two basins with positioning axparallel side by side at the same height are arranged horizontally and usable for a rail hardening part of the coolant in the basin has a depth which the height of the largest rail profile exceeds by at least 10%.

Die Vorteile dieses Merkmales der Erfindung sind hauptsächlich begründet durch eine mittels zwei Becken, die axparallel angeordnet sind, erreichte hohe Leistung und insbesondere Flexibilität der Härteeinrichtung und durch deren mittels steuerbaren Positioniermittel universelle Einsatzmöglichkeit gegebenenfalls für ein sequentielles, vollumfängliches Kühlen und/oder ein Kühlen von Teilen des Querschnitts beispielsweise ausschließlich des Kopfes oder der Lauffläche einer Schiene im Kühlmedium. Es ist mit der Einrichtung nach der Erfindung auch möglich, eine Vielzahl von Tauchparametern für die Schienen im Kühlmittel bei deren Härtung anzuwenden und somit eine gewünschte Gefügeverteilung über den Schienenquerschnitt zu erreichen.The advantages of this feature of the invention are mainly due to a high performance achieved by means of two basins, which are arranged axparallel, and in particular flexibility of the hardening device and by their universal use possible by means of controllable positioning means, optionally for a sequential, full cooling and / or cooling of parts the cross section, for example, only the head or the running surface of a rail in the cooling medium. It is also possible with the device according to the invention to apply a plurality of immersion parameters for the rails in the coolant during their curing and thus to achieve a desired microstructure distribution over the rail cross-section.

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).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 flow of coolant can be fed, preferably in the tank above the coolant inlet to this sealed spaced at least one perforated or durchströmbare plate arranged and / or in the flow direction of the coolant downstream of a plate with nozzles or with channels is (are) used.

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.By means of these measures according to the invention, the local cooling intensity of the coolant for the cross-sectional surface areas can be kept the same over the longitudinal rail extension and consequently high uniform quality in the production of hardened rails can be achieved.

Wenn, nach einer Ausführungsform der Erfindung im Becken und/oder in den Zuleitungen Ableitungsmittel für das Kühlmittel angeordnet sind, die zur kurzzeitigen Entleerung des Beckens offenstellbar sind, 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.If, according to one embodiment of the invention, discharge means for the refrigerant are arranged in the basin and / or in the supply lines, which can be opened for short-term emptying of the basin, e.g. in the event of a malfunction, the coolant is discharged from the tank in the shortest possible time, whereby the rail hardening is interrupted. This cessation of interruption provides protection of the device and makes it easier to deploy a rail held in the pool during system failure.

Das gesetzte Ziel der Erfindung, eine neue Einrichtung zum Härten von Schienen mit unterschiedlich effektiven örtlichen Kühlintensitäten über deren Querschnitt zu schaffen, wird auch dadurch erreicht, dass das Becken und die Anlagen und die lösbaren Spannmittel für den Fuß der hängenden Schiene aller Komponenten des Positioniermittels zur Einbringung der Schiene in das Kühlmittel gleichzeitig vertikal relativ zueinander gesteuert bewegbar und eine jeweilige vertikale Halteposition und Zeitdauer in dieser einstellbar sind.The stated object of the invention to provide a new device for hardening rails with different effective local cooling intensities over the cross section is also achieved by the fact that the basin and the installations and the releasable clamping means for the foot of the hanging rail of all components of the positioning means Insertion of the rail in the coolant simultaneously vertically controlled relative to each other movable and a respective vertical holding position and time are adjustable in this.

Mit Vorteil sind derart gewünschte Gefügeausbildungen und auch Gefügebereiche mit unterschiedlicher Mikrostruktur über den Querschnitt von Schienen erreichbar, wodurch derartige Schienen mit einem für besondere Beanspruchungen günstig ausgebildeten Eigenschaftsprofil herstellbar sind.Advantageously, such desired structural formations and also structural regions with different microstructures can be achieved over the cross-section of rails, whereby such rails can be produced with a property profile designed to be favorable for particular stresses.

Um bei Schienen gegebenenfalls mit verschiedenen Querschnittsprofilen die Kopfhärte und die Verteilung der mechanischen Materialeigenschaften über den Querschnitt optimieren zu können, kann vorgesehen sein, dass die Anlage und die Spannmittel für den Fuß der hängenden Schiene aller Komponenten des Positioniermittels gleichzeitig horizontal quer zum Becken einstellbar sind.In the case of rails, where appropriate with different cross-sectional profiles, the head hardness and the distribution of the mechanical material properties over the cross section To optimize, it can be provided that the system and the clamping means for the foot of the hanging rail of all components of the positioning means are simultaneously horizontally adjustable transversely to the pelvis.

Im Folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg darstellenden Zeichnungen näher erläutert, wobei hilfsweise im Text eine Bezugszeichenliste nachgeordnet ist.
Es zeigen

Fig. 1
Einrichtung zum Härten von Schienen im Querschnitt senkrecht zur Schienenlängsaxe
Fig. 2
Schiene in Zangen eines Manipulationsgreifers
Fig. 3
Positioniermittel und Becken senkrecht zur Schienenlängsaxe
Fig. 4
Querschnittsprofile von Schienen
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.
Show it
Fig. 1
Device for hardening rails in cross section perpendicular to the rail longitudinal axis
Fig. 2
Rail in pliers of a manipulator gripper
Fig. 3
Positioning means and pelvis perpendicular to the rail longitudinal axis
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
Fußmittelaxe
x
Kopfmittelaxe
A
Axabweichung
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 list of reference numbers given below is intended to serve:
1
rail
11
rail
12
railhead
1Z
tongue rail
1 R
grooved rail
1 V
Vignol
y
Fußmittelaxe
x
Head center Laxe
A
Axabweichung
H
rail height
2
roller table
21
Transverse displacement means
3
Maniulationsgreifer
30
Pliers
31.31 '
gripper arms
311,311 '
gripping parts
312.312 '
centering parts
4
positioning
40.40 '
retaining components
41.41 '
Attachments
42.42 '
clamping elements
5
Basin (trough)
50
coolant
51
Breakthrough plate
52
nozzle plate
53
Coolant steering device
54
Coolant inlet
6
cooling bed
61
Transfer means

In Fig. 1 ist im Querschnitt eine Ausführungsform der Erfindung 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 an embodiment of the invention. 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, 1 R, 1 V, 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 gripping arms 31,31 'are each formed with centering 312,312' for axial alignment of a rail head 12 and with gripping members 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, 1 R, 1 V, shown, axially align the head side by centering parts 312.312 'of pliers 30.

Ein in Fig. 1 dargestellter erfindungsgemäßer 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 inventive manipulator 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 vertically, horizontally and rotationally movable, so that a laterally located rail from the roller table 2, axially directed, in a suspended position with a horizontal foot surface together by machine-trained parts with simultaneous clamping of the centering parts 312.312 'perpendicular to the rail axis rotated, in a positioning means 4, as in 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 erfindungsgemäßes 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.An inventive 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.

Nach der Erfindung sind, wie aus Fig. 1 hervorgeht, 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.According to the invention are how out Fig. 1 shows in the device at least two tanks 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 of the same in to allow 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 "dipping 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 1 R im Vergleich mit einer Vignolschiene 1 V in Fig. 4 dargestellt ist, können Axabweichungen AZ, AR zwischen Kopfaxe x und Fußaxe 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 Axabweichungen 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 1 R in comparison with a Vignolschiene 1 V in Fig. 4 can Ax deviations A Z , A R between Kopfaxe x and Fußaxe y be given. In order to independently 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 Ax deviations Az, Ax corresponding horizontal, axparallel positioning of positioning means 4 and 5 pelvis can be set ..

Claims (11)

Einrichtung zum Härten von Schienen (1), 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 Querverschiebemlfteln (21) im Bereich eines Rollganges (2),aus Richtmitteln und Manipulationsgreifer (3) zum Verbringen der Schiene in der Einrichtung, mindestens einem Positioniermittel (4), mit jeweils einem Becken (5) bzw. Trog mit Kühlmittel sowie einem Kühlbett (6), dadurch gekennzeichnet, dass der Manipulationsgreifer (3) aus einer Vielzahl von gleichgeformten, fluchtenden und bewegungsgleich betätigbaren Zangen (30) gebildet ist, die Greifarme (31,31') aufweisen, die jeweils mit Zentrierteilen (312,312') für ein axiales Ausrichten des Kopfes (12) der Schiene und mit Greifteilen (311,311') für ein querschnittsfluchtendes Halten des Schienenfußes (11) ausgeformt sind und derart eine maßgenaue Einbringung der Schiene (1) im Positioniermittel (4) und eine Festlegung derselben in diesem ermöglicht ist.Device for hardening rails (1), in particular profiled rails, optionally with a 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 transverse displacement members (21) in the region a roller table (2), of directing means and manipulation gripper (3) for moving the rail in the device, at least one positioning means (4), each with a basin (5) or trough with coolant and a cooling bed (6), characterized in that the manipulation gripper (3) is formed from a multiplicity of identically shaped, aligned and movement-like actuable pliers (30) which have gripper arms (31, 31 ') which are respectively provided with centering parts (312, 312') for axial alignment of the head (12). the rail and with gripping parts (311, 311 ') for a cross-sectional alignment of the rail foot (11) are formed and thus a dimensionally accurate introduction of the rail (1) in the positioning means (4) and a determination of the same is made possible in this. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Manipulationsgreifer (3) mit mehr als zwei Zangen (30) je 10m Beckenlänge gebildet ist.Device according to claim 1, characterized in that the manipulation gripper (3) is formed with more than two pliers (30) per 10m basin length. Einrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Zangen (30) mit jeweils einem gleichartig bewegbaren bzw. anstellbaren Greifarm (31,31') gebildet sind.Device according to one of claims 1 or 2, characterized in that the pliers (30) are each formed with a similarly movable or engageable gripping arm (31,31 '). Einrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Manipulationsgreifer (3) und die zugehörigen Verbringungsmittel beabstandet mit mehr als der größten Schienenhöhe über dem Rollgang (2) querbewegbar und die Greifarme (31,31') der Zangen (30) teilweise zwischen die Rollen des Rollganges (2) zum Aufnehmen der Schiene (1) vertikal absenkbar sind.Device according to one of claims 1 to 3, characterized in that the manipulation gripper (3) and the associated transfer means spaced transversely with more than the largest rail height above the roller table (2) transversely movable and the gripper arms (31,31 ') of the pliers (30). partially vertically lowered between the rollers of the roller table (2) for receiving the rail (1). Einrichtung zum Härten von Schienen (1), 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 (21) im Bereich eines Rollganges (2), aus Richtmitteln und Manipulationsgreifer (3) zum Verbringen der Schiene in der Einrichtung, mindestens einem Positioniermittel (4) mit jeweils einem Becken (5) bzw. Trog mit Kühlmittel sowie einem Kühlbett (6), dadurch gekennzeichnet, dass das Positioniermittel (4) horizontal fluchtend eine Vielzahl von Haltekomponenten (40) mit Anlagen (41) für den Fuß (11) einer hängend eingebrachten Schiene (1) aufweist, welcher Fuß (11) jeweils auf den Anlagen (41) durch lösbare Spannelemente (42) bzw. Niederhalter verzugsgesichert in Achsrichtung der Schiene (1) festlegbar ist.Device for hardening rails (1), in particular profiled rails, possibly with a different cross-sectional shape and a length of greater than 50 m by cooling at least part of the respective rail cross-section over the entire rail length in a coolant, consisting of transverse displacement means (21) in the region of a roller table (2), from directing means and manipulation gripper (3) for moving the rail in the device, at least one positioning means (4) each having a basin (5) or trough with coolant and a cooling bed (6), characterized in that the positioning means (4) horizontally in alignment a plurality of holding components (40) with facilities (41) for the foot (11) of a hanging introduced rail (1), which foot (11) respectively on the Installations (41) by means of releasable clamping elements (42) or hold-down secured against distortion in the axial direction of the rail (1) can be fixed. Einrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Schiene (1) durch eine Anlage (41) und ein lösbares Spannelement (42) für den Schienenfuß (11) einer Komponente des Positioniermittels (4) unbewegbar gehalten ist und die übrigen Anlagen (41) und Elemente (42) der jeweilige Komponenten eine Verschiebung in Schienenlängsrichtung zulassen.Device according to claim 5, characterized in that the rail (1) by a plant (41) and a releasable clamping element (42) for the rail foot (11) of a component of the positioning means (4) is held immovable and the other facilities (41) and elements (42) of the respective components allow a displacement in the rail longitudinal direction. Einrichtung zum Härten von Schienen (1), insbesondere profilierte 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 (2), aus Richtmitteln und Manipulationsgreifer (3) zum Verbringen der Schiene in der Einrichtung, mindestens einem Positioniermittel (4), mit jeweils einem Becken (5) bzw. Trog mit Kühlmittel sowie einem Kühlbett (6), dadurch gekennzeichnet, dass mindestens zwei Becken (5) mit Positioniermitteln (4) axparallel nebeneinander auf gleicher Höhe horizontal angeordnet sind und der für eine Schienenhärtung nutzbare Teil des Kühlmittels (50) im Becken (5) eine Tiefe aufweist, welcher die Höhe des größten Schienenprofiles um mindestens 10% übersteigt.Device for hardening rails (1), in particular profiled running rails, possibly with a 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 transverse displacement means in the region of a roller table (1). 2), from directing means and manipulation gripper (3) for moving the rail in the device, at least one positioning means (4), each with a basin (5) or trough with coolant and a cooling bed (6), characterized in that at least two Basin (5) with positioning (4) axparallel side by side at the same height are arranged horizontally and usable for a rail hardening part of the coolant (50) in the basin (5) has a depth which exceeds the height of the largest rail profile by at least 10%. Einrichtung nach Anspruch 7, dadurch gekennzeichnet, dass das Becken (5) bodenseitig zumindest einen Kühlmitteleinlass je 1,5m Beckenlänge aufweist, durch welchen jeweils ein geregelter Kühlmittelstrom zuführbar ist, wobei vorzugsweise im Becken (5) oberhalb der Kühlmitteleinlässe distanziert zumindestens eine gelochte bzw. durchströmbare Platte (51) angeordnet und/oder in Fließrichtung des Kühlmittels nachgeordnet eine Düsenplatte (52) mit Kanälen eingesetzt ist (sind).Device according to claim 7, characterized in that the basin (5) on the bottom side has at least one coolant inlet per 1.5 m basin length, through which in each case a controlled coolant flow can be supplied, wherein preferably in the basin (5) above the coolant inlets distanced at least one perforated or arranged through flowable plate (51) and / or downstream of the flow direction of the coolant, a nozzle plate (52) is inserted with channels (are). Einrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass im Becken (5) und/oder in den Zuleitungen Ableitungsmittel für das Kühlmittel angeordnet sind, die zur kurzzeitigen Entleerung des Beckens (5) offenstellbar sind.Device according to claim 7 or 8, characterized in that in the basin (5) and / or in the supply lines discharge means for the coolant are arranged, which are open for short-term emptying of the basin (5). Einrichtung zum Härten von Schienen (1), insbesondere profilierte 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 (2), aus Richtmitteln und Manipulationsgreifer (3) zum Verbringen der Schiene in der Einrichtung, mindestens einem Positioniermittel (4), mit jeweils einem Becken (5) bzw. Trog mit Kühlmittel sowie einem Kühlbett (6), dadurch gekennzeichnet, dass das Becken (5) und die Anlagen (41) und die lösbaren Spannmittel (42) für den Fuß (11) der hängenden Schiene (1) aller Komponenten (40) des Positioniermittels (4) zur Einbringung der Schiene in das Kühlmittel gleichzeitig vertikal relativ zueinander gesteuert bewegbar und eine jeweilige vertikale Halteposition und Zeitdauer derselben einstellbar sind.Device for hardening rails (1), in particular profiled running rails, possibly with a 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 transverse displacement means in the region of a roller table (1). 2), from directing means and manipulation gripper (3) for moving the rail in the device, at least one positioning means (4), each with a basin (5) or trough with coolant and a cooling bed (6), characterized in that the basin (5) and the installations (41) and the releasable clamping means (42) for the foot (11) of the hanging rail (1) of all components (40) of the positioning means (4) for introducing the rail into the coolant are simultaneously controlled vertically relative to one another movable and a respective vertical holding position and time duration thereof are adjustable. Einrichtung nach Anspruch 10, dadurch gekennzeichnet, dass die Anlagen (41) und die Spannmittel (42) für den Fuß (11) der hängenden Schiene (1) aller Komponenten des Positioniermittels (4) gleichzeitig horizontal quer zum Becken einstellbar sind.Device according to claim 10, characterized in that the installations (41) and the clamping means (42) for the foot (11) of the hanging rail (1) of all components of the positioning means (4) are simultaneously adjustable horizontally across the pool.
EP09450016A 2008-02-04 2009-01-27 Device for hardening rails Active EP2085160B1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
PL10450111T PL2243566T3 (en) 2008-02-04 2009-01-27 Device for hardening rails
DK10450110.1T DK2243565T3 (en) 2008-02-04 2009-01-27 Device for curing rails
PL10450110T PL2243565T3 (en) 2008-02-04 2009-01-27 Device for hardening rails
DK10450109.3T DK2241384T3 (en) 2008-02-04 2009-01-27 Apparatus for curing rails
EP10450110A EP2243565B1 (en) 2008-02-04 2009-01-27 Device for hardening rails
EP10450111A EP2243566B1 (en) 2008-02-04 2009-01-27 Device for hardening rails
DK10450111.9T DK2243566T3 (en) 2008-02-04 2009-01-27 Device for curing rails
EP10450109A EP2241384B1 (en) 2008-02-04 2009-01-27 Device for hardening rails
PL09450016T PL2085160T3 (en) 2008-02-04 2009-01-27 Device for hardening rails
SI200930265T SI2085160T1 (en) 2008-02-04 2009-01-27 Device for hardening rails
PL10450109T PL2241384T3 (en) 2008-02-04 2009-01-27 Device for hardening rails

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Application Number Priority Date Filing Date Title
AT0017508A AT505930B1 (en) 2008-02-04 2008-02-04 DEVICE FOR HARDENING RAILS

Related Child Applications (3)

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EP10450109.3 Division-Into 2010-07-06
EP10450110.1 Division-Into 2010-07-06
EP10450111.9 Division-Into 2010-07-06

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EP2085160A1 true EP2085160A1 (en) 2009-08-05
EP2085160B1 EP2085160B1 (en) 2012-04-25

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EP09450016A Active EP2085160B1 (en) 2008-02-04 2009-01-27 Device for hardening rails
EP10450110A Active EP2243565B1 (en) 2008-02-04 2009-01-27 Device for hardening rails
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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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)
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AU (5) AU2009200367B2 (en)
BR (4) BRPI0900474B1 (en)
CA (4) CA2742939C (en)
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ES (4) ES2385182T3 (en)
HR (4) HRP20120492T1 (en)
PL (4) PL2243566T3 (en)
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