EP0029018B1 - Strand guiding for a curved continuous casting plant - Google Patents

Strand guiding for a curved continuous casting plant Download PDF

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Publication number
EP0029018B1
EP0029018B1 EP80890116A EP80890116A EP0029018B1 EP 0029018 B1 EP0029018 B1 EP 0029018B1 EP 80890116 A EP80890116 A EP 80890116A EP 80890116 A EP80890116 A EP 80890116A EP 0029018 B1 EP0029018 B1 EP 0029018B1
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EP
European Patent Office
Prior art keywords
supporting
trestle
support
pressure medium
frame
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Expired
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EP80890116A
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German (de)
French (fr)
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EP0029018A1 (en
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Aktiengesellschaft Voest-Alpine
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Voestalpine AG
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Voestalpine AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1282—Vertical casting and curving the cast stock to the horizontal

Definitions

  • the invention relates to a strand guide for a continuous sheet caster, in particular for a steel slab caster, with at least one arcuate, horizontally displaceable support and guide frame.
  • the invention aims to avoid these disadvantages and difficulties and has as its object to create a strand guide of the type described above, in which the displaceable support and guide scaffold can be easily removed and installed, but with good access to the system , the space on the casting platform is not limited and the smallest possible hall size is required.
  • the supporting and guiding frame is mounted on at least one intermediate frame which is adjustable in the arch plane and the intermediate frame is supported on at least one support frame which is adjustable transversely to the arch plane.
  • both the intermediate and the support frame are designed as a chassis, the intermediate frame being movable on rails arranged horizontally on the chassis and in the arch plane, and expediently for displacing the support and guide scaffold in the arch plane and at right angles thereto stationary pressure medium cylinders which can be coupled to the support and guide frame or to the supporting frame are provided.
  • pressure medium cylinders has, for example, the advantage over traction motors arranged on the chassis that no electrical supply lines have to be provided, which would be undesirable in the water-loaded cooling chamber.
  • Pressure fluid cylinders also have advantages over endless chain or cable drives; they are better and easier to protect against pollution from scale and rust.
  • a pressure medium cylinder with a smaller stroke than the total travel path of the support frame is provided for moving the support frame, the support frame being able to be coupled with an extension of the piston rod of the pressure medium cylinder at different distances from the pressure medium cylinder, since this results in a relative short pressure medium cylinder.
  • FIG. 1 is a schematic side view of a continuous caster
  • Fig. 1a is a detail on a larger scale
  • Fig. 2 is an analog representation with the support and guide frame lowered
  • Fig. 3 is a section along the line III-III of Fig. 2 show on an enlarged scale.
  • a support frame is moved to its outermost end position in a representation analogous to FIG. 3.
  • the arch-shaped support and guide frame 3 has on its outside in each case paired cambered support surfaces 7, 8 at different heights, with which, after loosening its fasteners 9 on the stationary support frame 10 and lowering by means of lifting elements, such as pressure medium cylinders, each on a counter support surface 11 one Intermediate frame 12 can be placed, each support surface 7, 8 each having its own an intermediate frame 12 having a counter support surface 11 is assigned.
  • Each intermediate frame 12 is designed as a chassis and can be moved by means of wheels 13 on rails 14 arranged horizontally in the plane of the arc.
  • These rails 14 are mounted on support frames 15, 16, each support frame also being designed as a chassis which can be moved by means of wheels 17 on rails 18 arranged horizontally and at right angles to the plane of the arc.
  • a respective support frame 15 or 16 is assigned to a pair of support surfaces 7 or 8 arranged at the same height.
  • the rails 18 are mounted on the stationary support frame 10.
  • a pressure medium cylinder 19 which is provided below the upper support frame 16 and is fixedly mounted on the support frame 10 and can be coupled to the support and guide frame 3, is used. It is shown in FIG. 1 in the retracted, uncoupled position, in FIG. 2, however, in the engaged position.
  • This tube 22 extends into a sleeve 23 of the support frame 15 or 16 and can be connected to this sleeve 23 by means of a bolt 24 which can be removed and inserted by hand.
  • the stroke 25 of the pressure medium cylinder 20 is only a fraction of the total process path 26.
  • the tube 22 has several bores 27, 27 ', 27 ", 27'" ... distributed over its length, into which the bolt 24 can be inserted , whereby the sleeve 23 can be attached to the pipe 22 at different distances from the pressure medium cylinder 20.
  • the intermediate frames 12 are each laterally protected by plates 28 mounted on the respective frame 15, 16 and can be fixed to the plates 28 by means of bolts 29 and thus in their position relative to the frame 15, 16.
  • Each bolt 29 passes through bores 30 of the intermediate frames 12 and corresponding bores 31 of the plates 28.
  • the support and guide frame 3 is lowered after loosening its attachment 9 to the support frame 10 by means of the lifting elements until it rests with its support surfaces 7, 8 on the counter support surfaces 11 of the two intermediate frames 12.
  • the pressure medium cylinder 19 is coupled to the support and guide frame 3 and, with the help of the pressure medium cylinder, the support and guide frame is pulled outward in the direction of arrow 33 by the travel path 32 of the intermediate frames 12.
  • the ends 34, 35 of the support and guide frame 3 are disengaged from the ends of adjacent strand guide elements, that is, the drive roller frame 4, which is arranged between the support and guide frame 3 to be removed and the straightening unit 5, and the bending zone 2.
  • a ratchet-like device could also be used, which allows the sleeve to move relative to the tube in only one direction. To push back the support and guide frame 3, this device would have to be switchable, so that the relative movement can optionally also be carried out in the opposite direction.
  • the invention can also be implemented for shorter support and guide frames arranged one behind the other, each support and guide frame being movable by means of at least one intermediate and support frame.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Movable Scaffolding (AREA)
  • Actuator (AREA)

Description

Die Erfindung betrifft eine Strangführung für eine Bogenstranggießanlage, insbesondere für eine Stahlbrammen-Stranggießanlage, mit mindestens einem bogenförmigen, horizontal verschiebbaren Stütz- und Führungsgerüst.The invention relates to a strand guide for a continuous sheet caster, in particular for a steel slab caster, with at least one arcuate, horizontally displaceable support and guide frame.

Es ist aus der AT-PS 290 750 bzw. der AT-PS 341 698 bekannt, ein bogenförmiges Stütz- und Führungsgerüst in horizontaler Richtung in der Bogenebene aus der Stranggießanlage herauszufahren. Dies hat zwar den Vorteil, daß dazu keine aufwendigen Vorrichtungen notwendig sind; es muß lediglich ein auf Schienen verfahrbarer Wagen (AT-PS 341 698) vorgesehen werden, auf den der Stütz- und Führungsbogen aufgesetzt werden kann, oder es können auch Räder direkt am Stütz- und Führungsgerüst (AT-PS 290 750) vorgesehen werden. Jedoch wird bei diesen Konstruktionen sehr viel Platz in der Bogenebene benötigt, was eine große Hallenbauweise erfordert.It is known from AT-PS 290 750 and AT-PS 341 698 to move an arch-shaped support and guide frame out of the continuous casting plant in the horizontal direction in the arch plane. This has the advantage that no complex devices are necessary for this; it is only necessary to provide a carriage which can be moved on rails (AT-PS 341 698) on which the support and guide arch can be placed, or wheels can also be provided directly on the support and guide frame (AT-PS 290 750). However, a lot of space is required in the arch plane with these constructions, which requires a large hall construction.

Es ist weiters bekannt, u. zw. aus der DE-PS 2 425 883 bzw. l 285 095, kürzere Stütz- und Führungsgerüste, die aneinander gereiht ein viertelkreisbogenförmiges Gerüst ergeben, in der Bcgenebene zunächst quer zur Strangrichtung in Richtung zum Krümmungsmittelpunkt des bogenförmigen Stütz- und Führungsgerüstes und sodann vertikal nach oben auszubauen. Diese Bauweise erfordert komplizierte und aufwendige Führungen für die auszubauenden Teile, welche Führungen den Platz bis zum Krümmungsmittelpunkt des Stütz- und Führungsgerüstes einnehmen und somit den Platz und die Übersichtlichkeit auf der Gießbühne beschränken; die Zugänglichkeit zu einzelnen Anlagenteilen ist bei diesen bekannten Konstruktionen ebenfalls beeinträchtigt.It is also known u. from DE-PS 2 425 883 or l 285 095, shorter supporting and guiding scaffolds, which are lined up to form a quarter-circular arch-shaped framework, in the arch plane first transverse to the strand direction in the direction of the center of curvature of the arc-shaped supporting and guiding framework and then vertically expand upwards. This design requires complicated and expensive guides for the parts to be removed, which guides take up the space up to the center of curvature of the support and guide frame and thus limit the space and clarity on the casting platform; The accessibility to individual system parts is also impaired in these known constructions.

Gemäß der DE-AS 1 920 757 ist es weiters bekannt, solche kürzere Stütz- und Führungsgerüste zum Zweck des Ausbaus radial nach außen in der Bogenebene zu bewegen, sodann außerhalb des bogenförmigen Stütz- und Führungsgerüstes entlang desselben nach unten zu verschieben und anschließend horizontal aus der Anlage zu verfahren. Bei dieser Konstruktion sind nicht nur sehr aufwendige Schienenführungen mit Weichen etc. notwendig, sondern es wird auch der Platz und damit die Zugänglichkeit zur Anlage stark beeinträchtigt.According to DE-AS 1 920 757, it is also known to move such shorter support and guide scaffolds radially outward in the arch plane for the purpose of removal, then to move them downward outside the arc-shaped support and guide scaffold and then horizontally outwards to move the system. This construction not only requires very complex rail guides with switches, etc., but also the space and thus the accessibility to the system is greatly impaired.

Die Erfindung bezweckt die Vermeidung dieser Nachteile und Schwierigkeiten und stellt sich die Aufgabe, eine Strangführung der eingangs beschriebenen Art zu schaffen, bei der das verschiebbare Stütz- und Führungsgerüst in einfacher Weise aus- und einbaubar ist, wobei jedoch eine gute Zugänglichkeit zur Anlage gegeben ist, der Platz auf der Gießbühne nicht beschränkt wird und eine möglichst geringe Hallengröße erforderlich ist.The invention aims to avoid these disadvantages and difficulties and has as its object to create a strand guide of the type described above, in which the displaceable support and guide scaffold can be easily removed and installed, but with good access to the system , the space on the casting platform is not limited and the smallest possible hall size is required.

Diese Aufgaben werden erfindungsgemäß dadurch gelöst, daß das Stütz- und Führungsgerüst auf mindestens einem Zwischengestell gelagert ist, welches in der Bogenebene verstellbar ist und das Zwischengestell auf mindestens einem Traggestell abgestützt ist, das quer zur Bogenebene verstellbar ist.These objects are achieved according to the invention in that the supporting and guiding frame is mounted on at least one intermediate frame which is adjustable in the arch plane and the intermediate frame is supported on at least one support frame which is adjustable transversely to the arch plane.

Nach einer bevorzugten Ausführungsform sind sowohl das Zwischen- als auch das Traggestell als Fahrgestell ausgebildet, wobei das Zwischengestell auf am Fahrgestell horizontal und in der Bogenebene angeordneten Schienen verfahrbar ist, und wobei zweckmäßig zum Verschieben des Stütz- und Führungsgerüstes in der Bogenebene als auch rechtwinklig dazu ortsfest angeordnete, an das Stütz- und Führungsgerüst bzw. an das Traggestell kuppelbare Druckmittelzylinder vorgesehen sind. Die Verwendung von Druckmittelzylindern weist beispielsweise gegenüber an den Fahrgestellen angeordneten Fahrmotoren den Vorteil auf, daß keine elektrischen Zuleitungen vorgesehen werden müssen, was in der wasserbeaufschlagten Kühlkammer unerwünscht wäre. Druckmittelzylinder weisen auch gegenüber endlosen Ketten- bzw. Seiltrieben Vorteile auf; sie sind nämlich vor Verschmutzung durch Zunder und Rost besser und einfacher schützbar.According to a preferred embodiment, both the intermediate and the support frame are designed as a chassis, the intermediate frame being movable on rails arranged horizontally on the chassis and in the arch plane, and expediently for displacing the support and guide scaffold in the arch plane and at right angles thereto stationary pressure medium cylinders which can be coupled to the support and guide frame or to the supporting frame are provided. The use of pressure medium cylinders has, for example, the advantage over traction motors arranged on the chassis that no electrical supply lines have to be provided, which would be undesirable in the water-loaded cooling chamber. Pressure fluid cylinders also have advantages over endless chain or cable drives; they are better and easier to protect against pollution from scale and rust.

Es ist von besonderem Vorteil, wenn zum Verschieben des Traggestells ein Druckmittelzylinder mit geringerem Hub als der Gesamt-Verfahrweg des Traggestells vorgesehen ist, wobei das Traggestell mit einer Verlängerung der Kolbenstange des Druckmittelzylinders in unterschiedlichen Entfernungen vom Druckmittelzylinder kuppelbar ist, da man dadurch mit einem relativ kurzen Druckmittelzylinder auskommt.It is particularly advantageous if a pressure medium cylinder with a smaller stroke than the total travel path of the support frame is provided for moving the support frame, the support frame being able to be coupled with an extension of the piston rod of the pressure medium cylinder at different distances from the pressure medium cylinder, since this results in a relative short pressure medium cylinder.

Die Erfindung ist nachfolgend anhand der Zeichnung näher erläutert, wobei Fig. 1 eine schematische Seitenansicht einer Stranggießanlage, Fig. 1a ein Detail in größerem Maßstab, Fig. 2 eine analoge Darstellung mit abgesenktem Stütz- und Führungsgerüst und Fig. 3 einen Schnitt gemäß der Linie III-III der Fig. 2 in vergrößertem Maßstab zeigen. In Fig. 4 ist in zu Fig. 3 analoger Darstellung ein Traggestell in seine äußerste Endposition verfahren.The invention is explained in more detail below with reference to the drawing, in which Fig. 1 is a schematic side view of a continuous caster, Fig. 1a is a detail on a larger scale, Fig. 2 is an analog representation with the support and guide frame lowered and Fig. 3 is a section along the line III-III of Fig. 2 show on an enlarged scale. In FIG. 4, a support frame is moved to its outermost end position in a representation analogous to FIG. 3.

Unterhalb der Kokille 1 befindet sich die Biegezone 2, an die anschließend ein kreisbogenförmiges, etwa viertelkreisbogenförmiges einteiliges Stütz- und Führungsgerüst 3 für den Strang anschließt. In weiterer Folge ist ein Treibwalzengerüst 4 und sodann das Richtaggregat 5 mit einem nachfolgenden weiteren Treibwalzengerüst 4 und daran anschließender horizontaler Strangführung 6 vorgesehen. Das bogenförmige Stütz- und Führungsgerüst 3 weist an seiner Außenseite jeweils paarweise angeordnete bombierte Stützflächen 7, 8 in unterschiedlichen Höhenlagen auf, mit denen es nach Lösen seiner Befestigungen 9 am ortsfesten Stützgerüst 10 und Absenken mittels Hubelemente, wie Druckmittelzylinder, auf jeweils eine Gegenstützfläche 11 eines Zwischengestells 12 aufsetzbar ist, wobei jeder Stützfläche 7, 8 jeweils ein eigenes, eine Gegenstützfläche 11 aufweisendes Zwischengestell 12 zugeordnet ist.Below the mold 1 there is the bending zone 2, to which an arc-shaped, approximately quarter-circular arc-shaped one-piece supporting and guiding frame 3 for the strand then connects. Subsequently, a driving roller stand 4 and then the straightening unit 5 with a subsequent further driving roller stand 4 and subsequent horizontal strand guide 6 are provided. The arch-shaped support and guide frame 3 has on its outside in each case paired cambered support surfaces 7, 8 at different heights, with which, after loosening its fasteners 9 on the stationary support frame 10 and lowering by means of lifting elements, such as pressure medium cylinders, each on a counter support surface 11 one Intermediate frame 12 can be placed, each support surface 7, 8 each having its own an intermediate frame 12 having a counter support surface 11 is assigned.

Jedes Zwischengestell 12 ist als Fahrgestell ausgebildet und kann mittels Rädern 13 auf horizontal in der Bogenebene angeordneten Schienen 14 verfahren werden. Diese Schienen 14 sind auf Traggestellen 15, 16 montiert, wobei jedes Traggestell ebenfalls als Fahrgestell ausgebildet ist, das mittels Rädern 17 auf horizontal und rechtwinklig zur Bogenebene angeordneten Schienen 18 verfahrbar ist. Es ist jeweils einem in gleicher Höhenlage angeordneten Stützflächenpaar 7 bzw. 8 ein eigenes Traggestell 15 bzw. 16 zugeordnet. Die Schienen 18 sind am ortsfesten Stützgerüst 10 montiert.Each intermediate frame 12 is designed as a chassis and can be moved by means of wheels 13 on rails 14 arranged horizontally in the plane of the arc. These rails 14 are mounted on support frames 15, 16, each support frame also being designed as a chassis which can be moved by means of wheels 17 on rails 18 arranged horizontally and at right angles to the plane of the arc. A respective support frame 15 or 16 is assigned to a pair of support surfaces 7 or 8 arranged at the same height. The rails 18 are mounted on the stationary support frame 10.

Zum Verfahren des Stütz- und Führungsgerüstes 3 in der Bogenebene dient ein unterhalb des oberen Traggestells 16 vorgesehener ortsfest am Stützgerüst 10 montierter Druckmittelzylinder 19, der an das Stütz- und Führungsgerüst 3 kuppelbar ist. Er ist in Fig. 1 in rückgezogener entkuppelter Stellung, in Fig.2 hingegen in eingekuppelter Stellung dargestellt.To move the support and guide frame 3 in the arch plane, a pressure medium cylinder 19, which is provided below the upper support frame 16 and is fixedly mounted on the support frame 10 and can be coupled to the support and guide frame 3, is used. It is shown in FIG. 1 in the retracted, uncoupled position, in FIG. 2, however, in the engaged position.

Zum Verfahren der Traggestelle 15, 16 dient jeweils ein Druckmittelzylinder 20, an dessen Kolbenstange 21 ein Rohr 22 als Verlängerung montiert ist. Dieses Rohr 22 ragt bis in eine Hülse 23 des Traggestells 15 bzw. 16 und ist mit dieser Hülse 23 mittels eines von Hand aus- und einsetzbaren Bolzens 24 verbindbar. Der Hub 25 des Druckmittelzylinders 20 beträgt nur einen Bruchteil des Gesamt-Verfahrensweges 26. Das Rohr 22 weist über seine Länge verteilt mehrere Bohrungen 27, 27', 27", 27'"... auf, in die der Bolzen 24 gesteckt werden kann, wodurch die Hülse 23 in unterschiedlichen Entfernungen vom Druckmittelzylinder 20 an dem Rohr 22 befestigbar ist.A pressure medium cylinder 20, on the piston rod 21 of which a tube 22 is mounted as an extension, is used to move the support frames 15, 16. This tube 22 extends into a sleeve 23 of the support frame 15 or 16 and can be connected to this sleeve 23 by means of a bolt 24 which can be removed and inserted by hand. The stroke 25 of the pressure medium cylinder 20 is only a fraction of the total process path 26. The tube 22 has several bores 27, 27 ', 27 ", 27'" ... distributed over its length, into which the bolt 24 can be inserted , whereby the sleeve 23 can be attached to the pipe 22 at different distances from the pressure medium cylinder 20.

Die Zwischengestelle 12 sind jeweils durch am jeweiligen Traggestell 15, 16 montierte Platten 28 seitlich geschützt und können mittels Bolzen 29 an den Platten 28 und damit in ihrer Lage gegenüber den Traggestellen 15, 16 fixiert werden. Jeder Bolzen 29 durchsetzt dabei Bohrungen 30 der Zwischengestelle 12 und korrespondierende Bohrungen 31 der Platten 28.The intermediate frames 12 are each laterally protected by plates 28 mounted on the respective frame 15, 16 and can be fixed to the plates 28 by means of bolts 29 and thus in their position relative to the frame 15, 16. Each bolt 29 passes through bores 30 of the intermediate frames 12 and corresponding bores 31 of the plates 28.

Die Funktion der Einrichtung beim Ausbau des Stütz- und Führungsgerüstes ist folgende:The function of the facility when removing the support and guide scaffolding is as follows:

Zunächst wird das Stütz- und Führungsgerüst 3 nach Lösen seiner Befestigung 9 am Stützgerüst 10 mittels der Hubelemente abgesenkt, bis es mit seinen Stützflächen 7, 8 auf den Gegenstützflächen 11 der beiden Zwischengestelle 12 aufliegt. Sodann wird der Druckmittelzylinder 19 an das Stütz- und Führungsgerüst 3 angekuppelt und mit Hilfe des Druckmittelzylinders das Stütz- und Führungsgerüst um den Verfahrweg 32 der Zwischengestelle 12 nach außen in Richtung des Pfeils 33 gezogen. Dadurch gelangen die Enden 34, 35 des Stütz-und Führungsgerüstes 3 außer Eingriff mit den Enden benachbarter Strangführungselemente, das sind das Treibwalzengerüst 4, welches zwischen dem auszubauenden Stütz- und Führungsgerüst 3 und dem Richtaggregat 5 angeordnet ist und die Biegezone 2.First, the support and guide frame 3 is lowered after loosening its attachment 9 to the support frame 10 by means of the lifting elements until it rests with its support surfaces 7, 8 on the counter support surfaces 11 of the two intermediate frames 12. Then the pressure medium cylinder 19 is coupled to the support and guide frame 3 and, with the help of the pressure medium cylinder, the support and guide frame is pulled outward in the direction of arrow 33 by the travel path 32 of the intermediate frames 12. As a result, the ends 34, 35 of the support and guide frame 3 are disengaged from the ends of adjacent strand guide elements, that is, the drive roller frame 4, which is arranged between the support and guide frame 3 to be removed and the straightening unit 5, and the bending zone 2.

Anschließend an diese Bewegung des Stütz-und Führungsgerüstes 3 wird die Verbindung des Druckmittelzylinders 19 mit dem Stütz- und Führungsgerüst gelöst und der Druckmittelzylinder 20 beaufschlagt und seine Kolbenstange 21 um den Hub 25 des Druckmittelzylinders zurückgezogen, wodurch das in das Rohr 22 mittels des Bolzens 24 gekuppelte Traggestell 15 um den Hub 25 der Kolbenstange 21 seitlich, also senkrecht zur Bogenebene (in Richtung des Pfeils 36) bewegt wird. Nach Entfernen des Bolzens 24 wird die Kolbenstange 21 des Druckmittelzylinders 20 wieder ausgefahren, bis die zweite Bohrung 27' des Rohres 22 mit der Bohrung der Hülse 23 fluchtet, sodann wird mittels des Bolzens 24 wieder die Hülse 23 mit dem Rohr 22 verbunden. Anschließend erfolgt wieder die Beaufschlagung des Druckmittelzylinders 20 und ein weiteres Verfahren des Traggestells 15 um den Hub 25. Auf diese Art und Weise werden beide Traggestelle 15, 16 schrittweise bewegt.Following this movement of the support and guide frame 3, the connection of the pressure medium cylinder 19 to the support and guide frame is released and the pressure medium cylinder 20 is acted upon and its piston rod 21 is retracted by the stroke 25 of the pressure medium cylinder, as a result of which it is inserted into the tube 22 by means of the bolt 24 coupled support frame 15 is moved laterally about the stroke 25 of the piston rod 21, that is to say perpendicular to the plane of the arc (in the direction of the arrow 36). After removing the bolt 24, the piston rod 21 of the pressure medium cylinder 20 is extended again until the second bore 27 'of the tube 22 is aligned with the bore of the sleeve 23, then the sleeve 23 is connected to the tube 22 again by means of the bolt 24. Subsequently, the pressure medium cylinder 20 is again acted upon and a further movement of the support frame 15 around the stroke 25 takes place. In this way, both support frames 15, 16 are moved step by step.

Von besonderem Vorteil ist dabei, daß keine Seiltriebe oder Kettentriebe verwendet werden müssen, die leicht verschmutzen und schwer zu warten sind und daß auch keine Elektromotoren benötigt werden, die in der wasserbeaufschlag- ten Kühlkammer zu Schwierigkeiten führen können. Die Verbindung der Kolbenstange 21 mit dem Traggestell 15 bzw. 16 erfordert nur ganz grobe Passungen, d. h. die Hülse 23 kann das Rohr 22 ganz !ose umgeben, so daß diese Einrichtung auch bei starker Verschmutzung durch Rost und Zunder stets betriebsbereit bleibt. Auch benötigt der nur einen kurzen Hub 25 aufweisende Druckmittelzylinder 20 sehr wenig Platz und ist auch dementsprechend billig.It is particularly advantageous that no cable drives or chain drives must be used that are easily contaminated and difficult to maintain, and that no electric motors are required that can cause difficulties in the water - loaded cooling chamber. The connection of the piston rod 21 to the support frame 15 or 16 requires only very rough fits, ie the sleeve 23 can completely surround the tube 22, so that this device always remains operational even when heavily soiled by rust and scale. Also, the pressure medium cylinder 20, which has only a short stroke 25, takes up very little space and is accordingly inexpensive.

Anstelle des von Hand aus einsetzbaren Bolzens 24 könnte auch eine ratschenartig ausgebildete Vorrichtung verwendet werden, die eine Relativbewegung der Hülse gegenüber dem Rohr in nur einer Richtung gestattet. Zum Zurückschieben des Stütz- und Führungsgerüstes 3 müßte diese Einrichtung umschaltbar sein, so daß die Relativbewegung wahlweise auch in die entgegengesetzte Richtung ausgeführt werden kann.Instead of the bolt 24, which can be inserted by hand, a ratchet-like device could also be used, which allows the sleeve to move relative to the tube in only one direction. To push back the support and guide frame 3, this device would have to be switchable, so that the relative movement can optionally also be carried out in the opposite direction.

Die Erfindung kann auch für kürzere hintereinander gereihte Stütz- und Führungsgerüste verwirklicht werden, wobei jedes Stütz- und Führungsgerüst mittels mindestens eines Zwischen- und Traggestells bewegbar ist.The invention can also be implemented for shorter support and guide frames arranged one behind the other, each support and guide frame being movable by means of at least one intermediate and support frame.

Claims (4)

1. Strand guide for an arcuate continuous casting plant, in particular a steel slab continuous casting plant, comprising at least one arcuate, horizontally displaceable supporting and guiding structure (3), characterised in that the supporting and guiding structure (3) is mounted on at least one intermediate trestle (l2) that is displaceable in the arc plane, and that the intermediate trestle (12) ist supported on at least one supporting trestle (15, 16) that is displaceable transversely to the arc plane.
2. Strand guide according to claim 1, characterised in that both the intermediate trestle (12) and the supporting trestle (15,16) are designed as bogies, the intermediate trestle (12) being displaceable on rails (14) arranged on the supporting trestle (15, 16) horizontally and in the arc plane.
3. Strand guide according to claim 1 or 2, characterised in that stationarily arranged pressure medium cylinders (19, 20) that are connectable to the supporting and guiding structure (3) and to the supporting trestle (15, 16), respectively, are provided for displacing the supporting and guiding structure (3) in the arc plane as well as at a right angle thereto.
4. Strand guide according to claim 3, characterised in that for displacing the supporting trestle (15, 16) a pressure medium cylinder (20) with a slighter stroke (25) than the total displacement path (26) of the supporting trestle (15, 16) is provided, the supporting trestle (15, 16) being connectable with an extension (22) of the piston rod (21) of the pressure medium cylinder (20) at different distances from the pressure medium cylinder (20).
EP80890116A 1979-10-22 1980-10-13 Strand guiding for a curved continuous casting plant Expired EP0029018B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT6874/79 1979-10-22
AT0687479A AT363627B (en) 1979-10-22 1979-10-22 STRING GUIDANCE FOR AN ARC CONTINUOUS CASTING SYSTEM

Publications (2)

Publication Number Publication Date
EP0029018A1 EP0029018A1 (en) 1981-05-20
EP0029018B1 true EP0029018B1 (en) 1983-03-02

Family

ID=3590645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80890116A Expired EP0029018B1 (en) 1979-10-22 1980-10-13 Strand guiding for a curved continuous casting plant

Country Status (8)

Country Link
US (1) US4428415A (en)
EP (1) EP0029018B1 (en)
JP (1) JPS5684161A (en)
AT (1) AT363627B (en)
BR (1) BR8006758A (en)
CA (1) CA1148327A (en)
DE (1) DE3062223D1 (en)
ES (1) ES496165A0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT372025B (en) * 1982-01-12 1983-08-25 Voest Alpine Ag CONTINUOUS CASTING PLANT
IT1312590B1 (en) * 1999-05-31 2002-04-22 Danieli Off Mecc DEVICE AND QUICK CHANGE PROCEDURE OF PARTS OF THE BAR GUIDE IN CONTINUOUS CASTING SYSTEMS.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294603B (en) * 1962-08-14 1969-05-08 Demag Ag Support roll frame for a metal, especially steel continuous casting plant
DE1239440B (en) * 1965-05-17 1967-04-27 Schloemann Ag Device for changing the roller guide segments of continuous casting plants
US3542118A (en) * 1967-12-20 1970-11-24 Concast Inc Dummy bar handling mechanism
AT289318B (en) * 1968-05-04 1971-04-13 Schloemann Ag Arch guide for strands emerging from continuous casting molds
DE1920757B2 (en) * 1969-04-24 1973-10-04 Demag Ag, 4100 Duisburg Device for dismounting and installing the strand guide segments of an arc continuous caster
US3763923A (en) * 1972-03-22 1973-10-09 United States Steel Corp Extractor for withdrawing or inserting roll-clusters
US3735848A (en) * 1972-03-22 1973-05-29 Pittsburgh Steel Corp Idler roll mounting construction
ES436020A1 (en) * 1974-04-05 1977-01-01 Fives Cail Babock S A Continuous casting apparatus
JPS52114424A (en) * 1976-03-22 1977-09-26 Nippon Kokan Kk Method and device for recomposition of roll group in continuous casting equipment
JPS52133825A (en) * 1976-05-04 1977-11-09 Mitsubishi Heavy Ind Ltd Continuous casting equipment

Also Published As

Publication number Publication date
JPS5684161A (en) 1981-07-09
ATA687479A (en) 1981-01-15
EP0029018A1 (en) 1981-05-20
ES8200580A1 (en) 1981-11-16
DE3062223D1 (en) 1983-04-07
AT363627B (en) 1981-08-25
ES496165A0 (en) 1981-11-16
US4428415A (en) 1984-01-31
CA1148327A (en) 1983-06-21
BR8006758A (en) 1981-04-28

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