EP1754557B1 - Apparatus for continuous casting of molten metal, particularly molten steel materials, with a trang guide - Google Patents

Apparatus for continuous casting of molten metal, particularly molten steel materials, with a trang guide Download PDF

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Publication number
EP1754557B1
EP1754557B1 EP06015747A EP06015747A EP1754557B1 EP 1754557 B1 EP1754557 B1 EP 1754557B1 EP 06015747 A EP06015747 A EP 06015747A EP 06015747 A EP06015747 A EP 06015747A EP 1754557 B1 EP1754557 B1 EP 1754557B1
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EP
European Patent Office
Prior art keywords
frame
piston
movable
fixed
segment
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EP06015747A
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German (de)
French (fr)
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EP1754557A1 (en
Inventor
Axel Stavenow
Axel Weyer
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SMS Siemag AG
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SMS Demag AG
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12Accessories for subsequent treating or working cast stock in situ
    • B22D11/128Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1285Segment changing devices for supporting or guiding frames

Definitions

  • the invention relates to a device for continuous casting of liquid metals, in particular of liquid steel materials, with a strand guide for supporting and / or guiding and cooling the casting strand, consisting of successive in strand running groups of a fixed side and a lot side forming roller pairs and per roller group serving for pivotal mounting Segment frame, wherein a lot side frame by means of pairs of hydraulic piston-cylinder drives for basic adjustment and adjustment of the casting strand format thickness or the segment conicity in a casting break or continuous casting operation against the fixed side frame can be adjusted and wherein at least one segment frame with the pairs of rolls is interchangeable.
  • the invention is based on the object, without removing the hydraulic piston-cylinder drives and opening their connections to perform a change of roles segments the task.
  • the stated object is achieved according to the invention by arranging individual roller groups of fixed-side rollers and loose-side rollers on a straight or curved section of the strand guide in such a way that the piston-cylinder drives are mounted in a stationary support frame so that the fixed side frame and the loose side frame form a frame unit form on which the lot side frame or the loose side rollers are adjustable by means of the piston-cylinder drives at a distance from the fixed side rollers and that the frame unit solved in at least one side transverse guide from the support frame for removing the Lossrollen or Loss and after maintenance for installation again is connected to the stationary support frame or an additional, separate, stationary, spaced segment support frame and the piston-cylinder drives are each provided with a piston rod, which by means of a coupling to a piston rod extension is connected, wherein the end of the piston rod extension forms a guide block of the lot side in the fixed side frame.
  • the advantage is further that the separation of the fixed support frame (which carries the piston-cylinder drives) of the frame unit (with the fixed side and the Losseite) leads to a largely mechanical assembly and is therefore easier to handle.
  • the frame unit of fixed side frame and lot side frame is connected to the fixed support frame by means of adjustable clamping means.
  • adjustable clamping means As a result, the frictional connection via hydraulic or electrical clamping means can be controlled very accurately.
  • a further development is that the fixed side frame with the lot side frame by means of pairs of segment wheels arranged in both sides, running transversely to the strand running rails from the support frame away and after maintenance is moved back again.
  • the movement path can be defined such that segment stops are arranged on the fixed side frame for the travel path of the segment frame.
  • segment frame is guided on both sides in the direction of the axis of the piston-cylinder drives and the piston rod extension by means arranged on the axis of the piston rod extension guide blocks.
  • This design can be further developed to the effect that for the guide blocks each window in the framework of the continuous casting are provided, which guide the guide blocks vertically and release in the direction of the axis of a piston-cylinder drive for a Anstellweg the lot side frame to the fixed side frame.
  • Fig. 1 serves a strand guide 1 for supporting and / or guiding and cooling a cast in a continuous casting mold casting strand in strand running direction 2.
  • the strand guide 1 consists of roller groups 3, which are opposite to each other in pairs.
  • the distance between a pair of rollers 6 corresponds to a basic setting on the respective format thickness of the cast casting strand.
  • the spacing may be varied to accommodate cast strand format thickness or segment conicity in a pour break or continuous casting operation.
  • Several groups 3 of rollers form strand strand 1 in strand running direction 2, which is constructed on a framework of the continuous casting plant.
  • the roller groups 3 form a fixed side 4 on a fixed side frame 4a and are referred to below as fixed side rollers 4b.
  • the rear row of rollers form a loose side 5 in strand running direction 2, are rotatably mounted on a loose side frame 5a, and are hereinafter referred to as loose side rolls 5b.
  • each of the individual roller groups 3 are arranged.
  • piston-cylinder drives 8 are mounted on their cylinder housing 8a in a fixed support frame 9 so as to be stationary ( Fig. 1A ).
  • the piston rods 8b are in the operating state with the adjustable part, ie the lot side frame 5a in conjunction.
  • Fig. 1B how out Fig. 1B can be seen, the frame unit 11, consisting of the fixed side rollers 4b and the loose side rollers 5b on an at least lower transverse guide 10 after release of clamping means 16 of the stationary support frame 9 moved away and after maintenance for installation again ( Fig. 1A / 1B in the direction of the arrow to the left) are again connected to the stationary support frame 9.
  • the support frame 9 is fixed in the base frame (banana) of the continuous casting apparatus by means of a fixed bearing (top) and by means of a movable bearing (bottom).
  • the piston-cylinder drives 8 are each provided with a piston rod 8b, which is connectable or detachable by means of a coupling 13 to a piston rod extension 14, wherein the end 14a of the piston rod extension 14 has a guide block 15.
  • Fig. 2 / Fig. 2A is provided between the movable frame unit 11 and the stationary support frame 9 a fixed to the base frame (banana) of the strand guide 1 intermediate frame 18.
  • the intermediate frame 18 ( Fig. 2A ) is used to adapt the frame unit 11 over a defined distance 17, so that conversions of existing equipment can be made.
  • pairs of segment wheels 19 are provided which are guided in a pair of rails 20 extending on both sides of the segment frame 7.
  • the pair of rails 20 runs perpendicular to the strand running direction 2 and, if a crane is not to be used for the transport of the frame unit 11, are guided in the direction of a removal station, such as, for example, to the casting platform of the continuous casting plant.
  • the travel path of the segment frame 7 can be limited for operating settings by means of segment stops 12 ( Fig. 2 ).
  • the segment frame 7 is on both sides in the direction of the axis of the piston-cylinder drives 8 and the piston rod extension by means of the arranged on the axis of the piston rod extension 14 guide blocks 15 14 led.
  • windows 15a are respectively provided in the framework of the continuous casting apparatus, which guide the guide blocks 15 vertically and release them in the direction of the axis of a piston-cylinder drive 8 for a setting path of the lot side frame 5a to the fixed side frame 4a.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Actuator (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Device for continuously casting liquid metal, especially liquid steel, comprises piston-cylinder drive units (8) each having a piston rod connected to an extension using a coupling (13). The end (14a) of the extension forms a guiding block of a detachable side in a frame (4a).

Description

Die Erfindung betrifft eine Vorrichtung zum Stranggießen von flüssigen Metallen, insbesondere von flüssigen Stahlwerkstoffen, mit einer Strangführung zum Stützen und / oder Führen und Kühlen des Gießstrangs, bestehend aus in Stranglaufrichtung aufeinanderfolgenden Gruppen von eine Festseite und eine Losseite bildenden Rollenpaaren und pro Rollengruppe zur Drehlagerung dienenden Segmentrahmen, wobei ein Losseitenrahmen mittels Paaren von hydraulischen Kolben-Zylinder-Antrieben für eine Grundeinstellung und eine Anpassung der Gießstrang-Formatdicke oder der Segmentkonizität in einer Gießpause oder im kontinuierlichen Gießbetrieb gegen den Festseitenrahmen anstellbar ist und wobei zumindest ein Segmentrahmen mit den Rollenpaaren auswechselbar ist.The invention relates to a device for continuous casting of liquid metals, in particular of liquid steel materials, with a strand guide for supporting and / or guiding and cooling the casting strand, consisting of successive in strand running groups of a fixed side and a lot side forming roller pairs and per roller group serving for pivotal mounting Segment frame, wherein a lot side frame by means of pairs of hydraulic piston-cylinder drives for basic adjustment and adjustment of the casting strand format thickness or the segment conicity in a casting break or continuous casting operation against the fixed side frame can be adjusted and wherein at least one segment frame with the pairs of rolls is interchangeable.

Die Grundlage für das Auswechseln von Rollensegmenten in Stranggießvorrichtungen kann über Ausbauwagen, Schienenführungen (bspw. DE 29 08 476 A1 ; DE 35 24 554 C2 ; DE 102 10 988 A1 ) geschaffen werden. Keiner dieser Vorschläge berücksichtigt jedoch eine Manipulation der sog. Anstellzylinder, d.h. der Kolben-Zylinder-Antriebe zum Einstellen des Rollenabstandes für eine Grundeinstellung und eine Anpassung der Gießstrang-Formatdicke oder der Segmentkonizität während einer Gießpause oder im kontinuierlichen Gießbetrieb die Maulweitenverstellung. Die Kolben-Zylinder-Antriebe erfordern jedoch bei der Auswechslung eines Rollensegmentes wegen Verschleiß oder Schäden der Stützrollen einen hohen Aufwand zur Demontage aller Anschlüsse und deren Montage und sind außerdem durch ihr Gewicht nur aufwändig transportierbar. Ein weiterer Nachteil besteht darin, dass die Kolben-Zylinder-Antriebe in vielen Fällen selbst nicht gewartet werden müssen und nur systemgebunden mit ausgebaut werden. Es ist daher eine Folge des Ausbaus von solchen Hydraulikzylindern, dass beim Ausbau eine Verunreinigung des Hydrauliksystems in Kauf genommen werden muss, dass eine Druckentlastung zum Öffnen der Hydraulikkupplungen und Spülvorgänge erforderlich wird, dass zusätzlich notwendige Kupplungsvorgänge der elektronischen Einrichtungen, wie bspw. Positionsgeber, durchgeführt werden müssen, dass dadurch eine höhere Anzahl von Wechselteilen an Einrichtungskomponenten anfällt und dass durch derartige Demontage- und Montagevorgänge die Wechselzeit für ein Rollensegment erheblich anwächst.The basis for the replacement of roll segments in continuous casters can be provided by removal trolleys, rail guides (eg. DE 29 08 476 A1 ; DE 35 24 554 C2 ; DE 102 10 988 A1 ) be created. However, none of these proposals takes into account a manipulation of the so-called. Anstellzylinder, ie the piston-cylinder drives for adjusting the roll distance for a basic setting and an adaptation of the cast strand format thickness or the segment conicity during a casting break or in the continuous casting operation, the Maulweitenverstellung. However, the piston-cylinder drives require in the replacement of a roller segment due to wear or damage to the support rollers a lot of effort to disassemble all connections and their installation and are also difficult to transport by their weight. Another disadvantage is that the piston-cylinder drives in many cases do not even need to be maintained and are only system-related removed. It is therefore a consequence of the expansion of such hydraulic cylinders that when removing contamination of the hydraulic system must be taken into account that a pressure relief for opening the hydraulic clutches and rinsing operations is required that additionally necessary coupling operations of the electronic devices, such as. Position transmitter performed must be that this results in a higher number of parts replaced in device components and that such a disassembly and assembly operations, the change time for a roller segment increases significantly.

Aus der EP 1 232813 ist die eingangs bezeichnete Vorrichtung bekannt, wobei die Nachteile der Manipulation von hydraulischen Kolben-Zylinder-Antrieben nicht deutlich genug aufgezeigt werden.From the EP 1 232813 is the device initially described, the disadvantages of the manipulation of hydraulic piston-cylinder drives are not clearly enough shown.

Der Erfindung liegt die Aufgabe zugrunde, ohne Ausbau der hydraulischen Kolben-Zylinder-Antriebe und Öffnen deren Anschlüsse, einen Wechsel von Rollensegmenten durchzuführen.The invention is based on the object, without removing the hydraulic piston-cylinder drives and opening their connections to perform a change of roles segments the task.

Die gestellte Aufgabe wird erfindungsgemäß dadurch gelöst, dass an einem geraden oder gebogenen Abschnitt der Strangführung jeweils einzelne Rollengruppen aus Festseitenrollen und Losseitenrollen angeordnet sind, dass die Kolben-Zylinder-Antriebe in einem ortsfesten Tragrahmen ortsunveränderlich gelagert sind, dass der Festseitenrahmen und der Losseitenrahmen eine Rahmeneinheit bilden, auf der der Losseitenrahmen bzw. die Losseitenrollen mittels der Kolben-Zylinder-Antriebe im Abstand zu den Festseitenrollen einstellbar sind und dass die Rahmeneinheit in zumindest einseitiger Querführung vom Tragrahmen gelöst zum Ausbau der Losseitenrollen bzw. des Losseitenrahmens und nach der Wartung zum Einbau wieder mit dem ortsfesten Tragrahmen oder einem zusätzlichen, separaten, ortsfesten, auf Abstand eingestellten Segmenttragrahmen verbunden wird und die Kolben-Zylinder-Antriebe jeweils mit einer Kolbenstange versehen sind, die mittels einer Kupplung an eine Kolbenstangen-Verlängerung angeschlossen ist, wobei das Ende der Kolbenstangen-Verlängerung einen Führungsstein der Losseite im Festseitenrahmen bildet.The stated object is achieved according to the invention by arranging individual roller groups of fixed-side rollers and loose-side rollers on a straight or curved section of the strand guide in such a way that the piston-cylinder drives are mounted in a stationary support frame so that the fixed side frame and the loose side frame form a frame unit form on which the lot side frame or the loose side rollers are adjustable by means of the piston-cylinder drives at a distance from the fixed side rollers and that the frame unit solved in at least one side transverse guide from the support frame for removing the Losseitenrollen or Losseitenrahmens and after maintenance for installation again is connected to the stationary support frame or an additional, separate, stationary, spaced segment support frame and the piston-cylinder drives are each provided with a piston rod, which by means of a coupling to a piston rod extension is connected, wherein the end of the piston rod extension forms a guide block of the lot side in the fixed side frame.

Dadurch verbleiben beim Segmentwechsel die Kolben-Zylinder-Antriebe ortsgebunden in ihrer Betriebsstellung und die hydraulischen, elektrischen und mechanischen Anschlüsse können in ihrer festen Verbindung bleiben, so dass Veränderungen hier nicht auftreten können und eine Wiederholung der Inbetriebsetzungsmaßnahmen nicht erforderlich werden. Dadurch wird nicht nur erheblich an Zeit gespart, sondern es werden auch bspw. Verunreinigungen der hydraulischen Verbindungen vermieden. Außerdem beschränken sich beim Segmentwechsel die Arbeiten weitgehend auf die mechanischen Bauteile. Beim Wiedereinbau eines Stützrollensegmentes wird der Kraftschluss unmittelbar zwischen dem Segmentrahmen der Festseite und den beidseitigen Tragrahmen der Kolben-Zylinder-Antriebe hergestellt.As a result, remain at the segment change, the piston-cylinder drives stationary in their operating position and the hydraulic, electrical and mechanical connections can remain in their fixed connection, so that changes can not occur here and a repetition of the commissioning measures are not required. This not only saves considerable time, but also, for example, contamination of the hydraulic connections are avoided. In addition, the work is largely limited to the mechanical components in the segment change. When reinstalling a support roller segment of the frictional connection is made directly between the segment frame of the fixed side and the two-sided support frame of the piston-cylinder actuators.

Der Vorteil ist weiterhin, dass die Trennung des ortsfesten Tragrahmens (der die Kolben-Zylinder-Antriebe trägt) von der Rahmeneinheit (mit der Festseite und der Losseite) zu einer weitgehend mechanischen Baueinheit führt und dementsprechend leichter zu handhaben ist.The advantage is further that the separation of the fixed support frame (which carries the piston-cylinder drives) of the frame unit (with the fixed side and the Losseite) leads to a largely mechanical assembly and is therefore easier to handle.

Nach weiteren Merkmalen wird vorgeschlagen, dass die Rahmeneinheit aus Festseitenrahmen und Losseitenrahmen mit dem ortsfesten Tragrahmen mittels einstellbaren Spannmitteln verbunden ist. Dadurch kann der Kraftschluss über hydraulische oder elektrische Spannmittel sehr genau kontrolliert werden.According to further features, it is proposed that the frame unit of fixed side frame and lot side frame is connected to the fixed support frame by means of adjustable clamping means. As a result, the frictional connection via hydraulic or electrical clamping means can be controlled very accurately.

Eine Alternative für den Umbau oder die Berücksichtigung örtlicher Verhältnisse ergibt sich daraus, dass zwischen der Rahmeneinheit und dem Tragrahmen mittels eines am Grundrahmen der Strangführung ( bei Bogenanlagen der sog. Banane) befestigten Zwischenrahmens der Abstand der Rahmeneinheit zum Tragrahmen mit einem definierten Abstand eingestellt ist. Dabei soll der Kraftschluss nicht unmittelbar zwischen dem Segmentrahmen der Festseite und den Kolben-Zylinder-Einheiten im Tragrahmen hergestellt werden, sondern von dem Grundrahmen (Banane) über das Fundament oder Stahlgerüst in den Tragrahmen für die Kolben-Zylinder-Antriebe.An alternative for the conversion or the consideration of local conditions results from the fact that between the frame unit and the support frame by means of a base frame attached to the strand guide (in sheetfed so-called. Banana) intermediate frame, the distance of the frame unit is set to the support frame with a defined distance. In this case, the frictional connection should not be made directly between the segment frame of the fixed side and the piston-cylinder units in the support frame, but from the base frame (banana) on the foundation or steel frame in the support frame for the piston-cylinder actuators.

Eine Weiterbildung besteht darin, dass der Festseitenrahmen mit dem Losseitenrahmen mittels Paaren von Segmenträdern in beiderseits angeordneten, quer zur Stranglaufrichtung verlaufenden Schienen vom Tragrahmen weg und nach Wartung wieder zurückverfahrbar ist.A further development is that the fixed side frame with the lot side frame by means of pairs of segment wheels arranged in both sides, running transversely to the strand running rails from the support frame away and after maintenance is moved back again.

Der Bewegungsweg kann dahingehend definiert werden, dass für den Verfahrweg des Segmentrahmens Segmentanschläge an dem Festseitenrahmen angeordnet sind.The movement path can be defined such that segment stops are arranged on the fixed side frame for the travel path of the segment frame.

Eine andere Verbesserung ergibt sich dadurch, dass der Segmentrahmen mittels auf der Achse der Kolbenstangen-Verlängerung angeordneten Führungssteinen beidseitig in Richtung der Achse der Kolben-Zylinder-Antriebe und der Kolbenstangen-Verlängerung geführt ist.Another improvement results from the fact that the segment frame is guided on both sides in the direction of the axis of the piston-cylinder drives and the piston rod extension by means arranged on the axis of the piston rod extension guide blocks.

Diese Gestaltung kann noch dahingehend weitergebildet werden, dass für die Führungssteine jeweils Fenster im Gerüst der Stranggießvorrichtung vorgesehen sind, die die Führungssteine vertikal führen und in Richtung der Achse eines Kolben-Zylinder-Antriebs für einen Anstellweg des Losseitenrahmens zum Festseitenrahmen freigeben.This design can be further developed to the effect that for the guide blocks each window in the framework of the continuous casting are provided, which guide the guide blocks vertically and release in the direction of the axis of a piston-cylinder drive for a Anstellweg the lot side frame to the fixed side frame.

In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt, die nachstehend näher erläutert werden.In the drawings, embodiments of the invention are shown, which are explained in more detail below.

Es zeigen:

Fig. 1
eine perspektivische Ansicht einer ersten Ausführungsform des Segmentrahmens mit den Kolben-Zylinder-Antrieben,
Fig. 1A
eine ebene Seiten-Ansicht des ortsfesten Tragrahmens mit ortsfesten Kolben-Zylinder-Antrieben im Betriebszustand,
Fig. 1B
ebenfalls in ebener Seiten-Ansicht die vom Tragrahmen losgelöste Rahmeneinheit ("offen") mit Festseitenrahmen und Losseitenrahmen,
Fig. 1C
die in Betriebsstellung zurückgefahrene Rahmeneinheit ("geschlossen") aus Festseitenrahmen und Losseitenrahmen mit Verspannung,
Fig. 2
eine perspektivische Ansicht einer zweiten Ausführungsform mit einem zusätzlichen Segmenttragrahmen,
Fig. 2A
eine ebene Darstellung in Seiten-Ansicht des ergänzten Tragrahmens mit zusätzlichem Segmenttragrahmen,
Fig. 2B
die gegenüber Fig. 1B unveränderte Rahmeneinheit aus Festseitenrahmen und Losseitenrahmen und
Fig. 2C
die in Betriebsstellung zurückgefahrene Rahmeneinheit mit zusätzlichem Segmenttragrahmen.
Show it:
Fig. 1
a perspective view of a first embodiment of the segment frame with the piston-cylinder drives,
Fig. 1A
a planar side view of the stationary support frame with stationary piston-cylinder drives in the operating state,
Fig. 1B
likewise in a flat side view the frame unit ("open") detached from the supporting frame with fixed side frame and loose side frame,
Fig. 1C
the frame unit ("closed") moved back into operating position from fixed side frame and loose side frame with bracing,
Fig. 2
a perspective view of a second embodiment with an additional segment support frame,
Fig. 2A
a planar representation in side view of the supplemental support frame with additional segment support frame,
Fig. 2B
the opposite Fig. 1B unchanged frame unit of fixed side frame and lot side frame and
Fig. 2C
the frame unit retracted in operating position with additional segment support frame.

Gemäß Fig. 1 dient eine Strangführung 1 zum Stützen und / oder Führen und Kühlen eines in einer Stranggießkokille gegossenen Gießstrangs in Stranglaufrichtung 2. Die Strangführung 1 besteht aus Rollengruppen 3, die sich paarweise gegenüberliegen. Der Abstand zwischen einem Rollenpaar 6 entspricht einer Grundeinstellung auf die jeweilige Format-Dicke des gegossenen Gießstrangs. Der Abstand kann verändert werden zwecks Anpassung der Gießstrang-Format-Dicke oder der Segmentkonizität in einer Gießpause oder im kontinuierlichen Gießbetrieb. Mehrere Gruppen 3 von Rollen bilden in Stranglaufrichtung 2 die Strangführung 1, die auf einem Gerüst der Stranggießanlage aufgebaut ist.According to Fig. 1 serves a strand guide 1 for supporting and / or guiding and cooling a cast in a continuous casting mold casting strand in strand running direction 2. The strand guide 1 consists of roller groups 3, which are opposite to each other in pairs. The distance between a pair of rollers 6 corresponds to a basic setting on the respective format thickness of the cast casting strand. The spacing may be varied to accommodate cast strand format thickness or segment conicity in a pour break or continuous casting operation. Several groups 3 of rollers form strand strand 1 in strand running direction 2, which is constructed on a framework of the continuous casting plant.

Die Rollengruppen 3 bilden eine Festseite 4 an einem Festseitenrahmen 4a und sind nachfolgend als Festseitenrollen 4b bezeichnet. Die hintere Reihe von Rollen bilden in Stranglaufrichtung 2 eine Losseite 5, sind an einem Losseitenrahmen 5a drehgelagert und sind nachstehend als Losseitenrollen 5b bezeichnet.The roller groups 3 form a fixed side 4 on a fixed side frame 4a and are referred to below as fixed side rollers 4b. The rear row of rollers form a loose side 5 in strand running direction 2, are rotatably mounted on a loose side frame 5a, and are hereinafter referred to as loose side rolls 5b.

Von einem Rollenpaar 6 gehört somit jeweils in den Fig. 1 und 2 die linke Rolle zum Festseitenrahmen 4a und die rechte Rolle zum Losseitenrahmen 5a. Das Besondere an der Erfindung ist, dass an einem lösbaren Segmentrahmen 7 der Losseitenrahmen 5a und der Festseitenrahmen 4a in Führungen gelagert sind.From a pair of rollers 6 thus belongs in the respective Fig. 1 and 2 the left roller to the fixed side frame 4a and the right roller to the loose side frame 5a. The special On the invention is that on a detachable segment frame 7 of the lot side frame 5a and the fixed side frame 4a are mounted in guides.

An einem geraden oder gebogenen Abschnitt der Strangführung 1 sind jeweils die einzelnen Rollengruppen 3 angeordnet. Davon unabhängig sind Kolben-Zylinder-Antriebe 8 an ihrem Zylindergehäuse 8a in einem ortsfesten Tragrahmen 9 ortsunveränderlich gelagert (Fig. 1A). Die Kolbenstangen 8b stehen im Betriebszustand mit dem verstellbaren Teil, d.h. dem Losseitenrahmen 5a in Verbindung.At a straight or curved portion of the strand guide 1 each of the individual roller groups 3 are arranged. Independently of this, piston-cylinder drives 8 are mounted on their cylinder housing 8a in a fixed support frame 9 so as to be stationary ( Fig. 1A ). The piston rods 8b are in the operating state with the adjustable part, ie the lot side frame 5a in conjunction.

Wie aus Fig. 1B ersichtlich ist, kann die Rahmeneinheit 11, bestehend aus den Festseitenrollen 4b und den Losseitenrollen 5b auf einer zumindest unteren Querführung 10 nach Lösen von Spannmitteln 16 von dem ortsfesten Tragrahmen 9 weggefahren und nach Wartung zum Einbau wieder (Fig. 1A / Fig. 1B in Pfeilrichtung nach links) wieder mit den ortsfesten Tragrahmen 9 verbunden werden.How out Fig. 1B can be seen, the frame unit 11, consisting of the fixed side rollers 4b and the loose side rollers 5b on an at least lower transverse guide 10 after release of clamping means 16 of the stationary support frame 9 moved away and after maintenance for installation again ( Fig. 1A / 1B in the direction of the arrow to the left) are again connected to the stationary support frame 9.

Der Tragrahmen 9 ist im Grundrahmen (Banane) der Stranggießvorrichtung mittels eines Festlagers (oben) und mittels eines Loslagers (unten) befestigt.The support frame 9 is fixed in the base frame (banana) of the continuous casting apparatus by means of a fixed bearing (top) and by means of a movable bearing (bottom).

Die Kolben-Zylinder-Antriebe 8 sind jeweils mit einer Kolbenstange 8b versehen, die mittels einer Kupplung 13 an eine Kolbenstangen-Verlängerung 14 anschließbar oder lösbar ist, wobei das Ende 14a der Kolbenstangen-Verlängerung 14 einen Führungsstein 15 aufweist. Dadurch kann die Losseite 5 um einen festgelegten Weg (in Fig. 1 horizontal) derart verschoben werden, dass sich der Abstand der Losseitenrollen 5b von den Festseitenrollen 4b verkleinert oder vergrößert im Sinn der Grundeinstellung, der Anpassung der Gießstrang-Formatdicke oder (bei einem Paar von Kolben-Zylinder-Antrieben 8) zur Einstellung der Segmentkonizität.The piston-cylinder drives 8 are each provided with a piston rod 8b, which is connectable or detachable by means of a coupling 13 to a piston rod extension 14, wherein the end 14a of the piston rod extension 14 has a guide block 15. As a result, the lot page 5 by a predetermined distance (in Fig. 1 horizontally) are shifted such that the distance of the loose side rollers 5b from the fixed side rollers 4b is reduced or increased in the sense of basic adjustment, the adaptation of Gießstrang format thickness or (in a pair of piston-cylinder drives 8) to adjust the segment conicity.

Die Wiederverbindung der Rahmeneinheit 11 mit dem Tragrahmen 9 in Einbaurichtung 21 erfolgt mittels der einstellbaren Spannmittel 16 (Fig. 1C), die elektrisch gesteuert betätigt werden. Dabei werden auch die Kupplungen 13 geschlossen.The reconnection of the frame unit 11 with the support frame 9 in the installation direction 21 by means of the adjustable clamping means 16 (FIG. Fig. 1C ), which are operated electrically controlled. In this case, the clutches 13 are closed.

Gemäß Fig. 2 / Fig. 2A ist zwischen der bewegbaren Rahmeneinheit 11 und dem ortsfesten Tragrahmen 9 ein am Grundrahmen (Banane) der Strangführung 1 befestigter Zwischenrahmen 18 vorgesehen. Der Zwischenrahmen 18 (Fig. 2A) dient der Anpassung der Rahmeneinheit 11 über einen definierten Abstand 17, so dass auch Umbauten bestehender Anlagen vorgenommen werden können.According to Fig. 2 / Fig. 2A is provided between the movable frame unit 11 and the stationary support frame 9 a fixed to the base frame (banana) of the strand guide 1 intermediate frame 18. The intermediate frame 18 ( Fig. 2A ) is used to adapt the frame unit 11 over a defined distance 17, so that conversions of existing equipment can be made.

Für den Festseitenrahmen 4a zusammen mit den Losseitenrahmen 5a sind Paare von Segmenträdern 19 vorgesehen, die in einem beidseits zum Segmentrahmen 7 verlaufenden Schienenpaar 20 geführt sind. Das Schienenpaar 20 verläuft senkrecht zur Stranglaufrichtung 2 und kann, falls für den Transport der Rahmeneinheit 11 ein Kran nicht eingesetzt werden soll, in Richtung zu einer Abnahmestation, wie bspw. auf die Gießbühne der Stranggießanlage, geführt werden.For the fixed side frame 4a together with the lot side frame 5a, pairs of segment wheels 19 are provided which are guided in a pair of rails 20 extending on both sides of the segment frame 7. The pair of rails 20 runs perpendicular to the strand running direction 2 and, if a crane is not to be used for the transport of the frame unit 11, are guided in the direction of a removal station, such as, for example, to the casting platform of the continuous casting plant.

Der Verfahrweg des Segmentrahmens 7 kann für Betriebseinstellungen mittels Segmentanschlägen 12 begrenzt werden (Fig. 2). Für die Betriebseinstellungen oder falls das Schienenpaar 20 so kurz wie möglich gehalten werden soll, ist der Segmentrahmen 7 mittels den auf der Achse der Kolbenstangen-Verlängerung 14 angeordneten Führungssteinen 15 beidseitig in Richtung der Achse der Kolben-Zylinder-Antriebe 8 und der Kolbenstangen-Verlängerung 14 geführt. Für die Führungssteine 15 sind jeweils Fenster 15a im Gerüst der Stranggießvorrichtung vorgesehen, die die Führungssteine 15 vertikal führen und in Richtung der Achse eines Kolben-Zylinder-Antriebs 8 für einen Anstellweg des Losseitenrahmens 5a zum Festseitenrahmen 4a freigeben.The travel path of the segment frame 7 can be limited for operating settings by means of segment stops 12 ( Fig. 2 ). For the operating settings or if the rail pair 20 is to be kept as short as possible, the segment frame 7 is on both sides in the direction of the axis of the piston-cylinder drives 8 and the piston rod extension by means of the arranged on the axis of the piston rod extension 14 guide blocks 15 14 led. For the guide blocks 15, windows 15a are respectively provided in the framework of the continuous casting apparatus, which guide the guide blocks 15 vertically and release them in the direction of the axis of a piston-cylinder drive 8 for a setting path of the lot side frame 5a to the fixed side frame 4a.

Bezugszeichenliste

1
Strangführung
2
Stranglaufrichtung
3
Rollengruppe
4
Festseite
4a
Festseitenrahmen
4b
Festseitenrollen
5
Losseite
5a
Losseitenrahmen
5b
Losseitenrollen
6
Rollenpaar
7
Segmentrahmen
8
Kolben-Zylinder-Antriebe
8a
Zylindergehäuse
8b
Kolbenstange
9
Tragrahmen
10
zumindest einseitige Querführung
11
Rahmeneinheit
12
Segmentanschlag
13
Kupplung
14
Kolbenstangen-Verlängerung
14a
Ende der Kolbenstangen-Verlängerung
15
Führungsstein
15a
Fenster für Führungsstein
16
einstellbares Spannmittel
17
definierter Abstand
18
Segmenttragrahmen
19
Segmentrad
20
Schienenpaar
21
Einbaurichtung
LIST OF REFERENCE NUMBERS
1
strand guide
2
Strand running direction
3
role group
4
fixed side
4a
Fixed side frame
4b
Hard side rolls
5
loose side
5a
Losseitenrahmen
5b
Losseitenrollen
6
roller pair
7
segment frame
8th
Piston-cylinder drives
8a
cylinder housing
8b
piston rod
9
supporting frame
10
at least one-sided transverse guidance
11
frame unit
12
segment stop
13
clutch
14
Rod extension
14a
End of the piston rod extension
15
leadership stone
15a
Window for guide stone
16
adjustable clamping device
17
defined distance
18
Segment support frame
19
segmented
20
pair of rails
21
installation direction

Claims (7)

  1. Device for continuous casting of liquid metals, particularly of liquid steels, comprising a strip guide (1) for supporting and/or guiding and cooling the cast strip, consisting of groups (3), which are successive in strip-running direction (2), of roller pairs (6) forming a fixed side (4) and a movable side (5) and segment frames (7) serving for rotational mounting per roller group (3), wherein a movable-side frame (5a) is adjustable relative to the fixed-side frame (4a) by means of pairs of hydraulic piston-cylinder drives (8) for a basic setting and for adaptation of the cast strip format thickness or the segment conicity in a pause in casting or in continuous casting operation and wherein at least one second frame (4a, 5a) together with the roller pairs (6) is exchangeable, characterised in that respective individual roller groups (3) consisting of fixed-side rollers (4b) and removable-side rollers (5b) are arranged in a straight or curved section of the strip guide (1), that the piston-cylinder drives (8) are mounted in a stationary support frame (9) to be unchangeable in position, that the fixed-side frame (4a) and the movable-side frame (5a) form a frame unit (11) on which the movable-side frame (5a) or the movable-side rollers (5b) are adjustable in spacing from the fixed-side rollers (4b) by means of the piston-cylinder drives (8) and that the frame unit (11) is detachable, in a transverse guide (10) at at least one side, from the support frame (9) for demounting of the movable-side rollers (5b) or of the movable-side frame (5a) and after maintenance is, for installation, reconnectible with the stationary support frame (9) or with an additional separate segment support frame (18) set in a stationary position at a spacing (17) and the piston-cylinder drives (8) are each provided with a piston rod (8b) connected by means of a coupling (13) with a piston rod extension (14), wherein the end (14a) of the piston rod extension (14) forms a guide block (15) of the movable side (5) in the fixed-side frame (4a).
  2. Device according to claim 1, characterised in that the frame unit (11) consisting of fixed-side frame (4a) and movable-side frame (5a) is connected with the stationary support frame (9) by means of settable clamping means (16).
  3. Device according to claims 1 to 2, characterised in that between the frame unit (11) and the support frame (9) the spacing of the frame unit (11) from the support frame (9) is set to a defined spacing (17) by means of an intermediate frame (18) fastened to the base frame of the strip guide (1).
  4. Device according to any one of claims 1 to 3, characterised in that the fixed-side frame (4a) is movable together with the movable-side frame (5a) away from the support frame (9), and back again after maintenance, by means of pairs of segment wheels (19) in rails (20) arranged on both sides and extending transversely to the strip running direction (2).
  5. Device according to any one of claims 1 to 6, characterised in that for the movement away of the segment frame (7) segment abutments (12) are arranged at the fixed-side frame (4a).
  6. Device according to claim 1, characterised in that the segment frame (7) is guided on both sides in the direction of the axis of the piston-cylinder drives and the piston-rod extension (14) by means of guide blocks (15) arranged on the axis of the piston rod extension (14).
  7. Device according to claim 6, characterised in that respective windows (15a) are provided in the stand of the continuous casting device for the guide blocks (15), which windows guide the guide blocks (15) vertically, and release the blocks in the direction of the axis of a piston-cylinder drive (8) for an adjustment travel of the movable-side frame (5a) with respect to the fixed-side frame (4a).
EP06015747A 2005-07-29 2006-07-28 Apparatus for continuous casting of molten metal, particularly molten steel materials, with a trang guide Not-in-force EP1754557B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005036402A DE102005036402A1 (en) 2005-07-29 2005-07-29 Device for continuously casting liquid metal, especially liquid steel, comprises piston-cylinder drive units each having a piston rod connected to an extension using a coupling

Publications (2)

Publication Number Publication Date
EP1754557A1 EP1754557A1 (en) 2007-02-21
EP1754557B1 true EP1754557B1 (en) 2008-09-24

Family

ID=37433704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06015747A Not-in-force EP1754557B1 (en) 2005-07-29 2006-07-28 Apparatus for continuous casting of molten metal, particularly molten steel materials, with a trang guide

Country Status (3)

Country Link
EP (1) EP1754557B1 (en)
AT (1) ATE409091T1 (en)
DE (2) DE102005036402A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62114752A (en) * 1985-11-14 1987-05-26 Kobe Steel Ltd Roll segment changer for continuous casting installation
JPS62142057A (en) * 1985-12-16 1987-06-25 Kobe Steel Ltd Exchanging apparatus for roll segment in continuous casting equipment
DE10107565A1 (en) * 2001-02-17 2002-08-29 Sms Demag Ag Method and device for replacing the support rollers forming a strand guide of a continuous casting device for metals, in particular for steel

Also Published As

Publication number Publication date
ATE409091T1 (en) 2008-10-15
EP1754557A1 (en) 2007-02-21
DE502006001627D1 (en) 2008-11-06
DE102005036402A1 (en) 2007-02-01

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