EP2032289B1 - Strand guide roller - Google Patents

Strand guide roller Download PDF

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Publication number
EP2032289B1
EP2032289B1 EP07723801A EP07723801A EP2032289B1 EP 2032289 B1 EP2032289 B1 EP 2032289B1 EP 07723801 A EP07723801 A EP 07723801A EP 07723801 A EP07723801 A EP 07723801A EP 2032289 B1 EP2032289 B1 EP 2032289B1
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EP
European Patent Office
Prior art keywords
roller
rollers
guide roller
strip guide
strand guide
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EP07723801A
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German (de)
French (fr)
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EP2032289A1 (en
Inventor
Axel Bekurts
Albrecht Girgensohn
Axel Stavenow
Erich Hovestädt
Dirk Mangler
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SMS Siemag AG
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SMS Siemag 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
    • 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
    • B22D11/1287—Rolls; Lubricating, cooling or heating rolls while in use
    • 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

Definitions

  • the invention relates to strand guide rollers of a strand guide device for guiding a cast strand, for. B. a slab, after leaving a continuous casting mold.
  • strand guide rollers are also single or multiple split strand guide rollers, as for example in the American patent US 5,279,535 are disclosed.
  • a strand guide roller comprises a plurality of axially adjacent sub-rollers, each sub-roller has two roller pins at its two ends.
  • the two opposing roller journals of two juxtaposed sub-rollers are each mounted in their own axial bearings, which are typically combined in a split center bearing.
  • Such split center bearings in the form of two separate axially adjacent bearings with optionally interposed Bogenstattkupplung are disadvantageously quite wide and therefore form a particularly wide storage window in which the strand to be led or supported can not be supported by the Teitrollen.
  • such Mitteilager are due to the majority of their items: quite expensive.
  • the present invention seeks to provide a coupling between the two sub-rollers as simple and inexpensive as possible with a strand guide roller with at least a first and a second part role to provide improved strand management.
  • This object is solved by the subject matter of patent claim 1.
  • This object is characterized in that the cross section of the roller journal and the cross section of the associated recess are each formed in the form of a polygon shaft profile, and that the insert element is locked against rotation in the bore by means of clamping pins.
  • the claimed configuration of the cross section of the roller journal and the cross section of the associated recess, each in the form of a polygonal shaft profile, has the advantage that the two adjacent partial rollers are then connected to each other positively and non-positively to transmit a torque.
  • the transmission of torque between the Teifrollen is particularly interesting when not driven by a motor part rollers.
  • the positive and non-positive connector has the advantage that if only one part roller is rotated by contact with the transported slab in rotation, the adjacent part rollers are rotated, even if they themselves have no contact with the slab. This has the advantage that it prevents excessive heating and thus warping and jamming of this partial roll.
  • the recess is subjected to very high loads, in particular in the case of polygonal-shaped formations for transmitting a torque, and can therefore wear out quickly, as the corners and flanks are increasingly rounded during operation; a transmission of torque would then only insufficient or not possible.
  • the formation of the recess in the insert part is advantageous because the insert as a closing part at any time is inexpensively interchangeable.
  • the center bearing serves to support the first part of the role by receiving their roller pin.
  • the center bearing must be designed only as an undivided single bearing.
  • Through the connector is the second part of the role with the first part of the role connected so that the second Teitrolle can be supported on the first part of the role. Due to the connector with the first part of the second roller role does not require its own bearing; Rather, the second part of the role is stored on the connector in or on the first part of the role.
  • the second conventional bearing within the center bearing for the second part of the role in the prior art can therefore be dispensed with as well as the curved tooth coupling in the inventive design of the strand guide roller.
  • the center bearing therefore only has a single bearing, the width of the center bearing and thus the width of the window between the two adjacent sub-rollers over the prior art can be reduced.
  • This has the advantage that the bearing surface is increased for the slab, whereby the guiding and supporting function of the strand guiding device for the slab is improved.
  • the center bearing formed as a single bearing preferably in the form of a standard bearing, is less expensive than a split center bearing.
  • the sub-roles are easy to assemble and disassemble in the inventive design of the strand guide roller.
  • cooling channels in the sub-rollers has the advantage that the sub-rollers do not overheat; the extent of possible cooling can be influenced by the number of cooling channels provided.
  • a cooling passage has an inner tube whose outer diameter is smaller than the inner diameter of the cooling passage, the inner tube represents a first cooling passage and the space between the inner tube and the cooling passage represents a second cooling passage.
  • a coolant can be passed gegenläufg.
  • the invention relates to driven and non-driven strand guide rollers alike.
  • FIG. 1 shows a first embodiment of the strand guide roller 100 according to the invention.
  • the strand guide roller is here exemplified twice divided and accordingly comprises a total of three sub-rollers 110-1, 110-2, 110-3.
  • the two-fold division is represented by two center bearings 120-1, 120-2, which are arranged in the transition regions between in each case two of the said partial rollers.
  • the center bearings ensure an axial arrangement of the sub-rollers side by side.
  • the first partial roller 110-1 is mounted in the first center bearing 120-1 and the outer bearing 120-0, in which these two bearings each receive a roller journal 112-1, 112-0 of the first partial roller 110-1.
  • the second partial roller 110-2 is not supported directly in the center bearing 120-1. Instead, it has a recess 116-2 on its front side 114-2 facing the first partial roller 110-1. For receiving the roller journal 112-1 or a twisted against the actual roller pin extension of the same.
  • the recess 116-2 is formed or contoured in accordance with the cross section of the roller journal 112-1 or the extension of the roller journal.
  • the first and second part of the roller 110-1, 110-2 connected in such a way that the roller journal 112-1 is inserted into the correspondingly shaped recess 116-2 fit,
  • the roller journal 112-1 and the recess 116-2 form insofar a connector for the two sub-roles.
  • a second bearing for receiving and supporting the second part of the roll 110-2 is therefore unnecessary in the inventive design of the strand guide roller. Therefore, the center bearing 120-1, 120-2 is formed as an undivided single bearing, which has the advantage of a significantly narrower window width B compared to a split center bearing.
  • the second partial roller 110-2 alswelst on its the first part of the role facing the stimulus 114-2 no recess, but also a roller pin, which has a smaller diameter than the roller journal 112-1 of the first part of the roller 110-1.
  • the plug connection could then be realized by inserting this roller journal of the second partial roller into a recess in the end face of the roller journal 112-1 of the first partial roller.
  • the formation of the connector in the form of a separate component between the two sub-rollers 110-1 and 110-2 outside of the center bearing 120-1.
  • the connector may be formed in the strand guide roller according to the invention as a clutch for transmitting a torque between the two adjacent sub-rollers or only as a pivot bearing, which does not allow transmission of torque.
  • a clutch for transmitting a torque between the two adjacent sub-rollers or only as a pivot bearing, which does not allow transmission of torque.
  • a coupling function may be included the embodiment described above, in which a roller pin is inserted in a recess, can be realized simply by not forming the recess in a circular shape but, for example, in the form of a polygonal shaft profile. An example of this is in FIG. 2 shown.
  • FIG. 3 shows a second embodiment of the strand guide roller 100 according to the invention, which differs from the first embodiment only in the configuration of the connector.
  • this embodiment of the connector is shown enlarged; It will therefore be described below with reference to FIG. 4 described in more detail.
  • the recess 116-2 in the second part of the roller 110-2 and the roller journal 112-1 in the first part of the role 110-1 are not precisely matched, but rather the cross section of the roller journal 112-1 and its extension is much smaller than the cross section of the recess 116-2.
  • the recess 116-2- even if the connector is realized as a coupling - for reasons of simplicity preferably not polygonal-shaped limited, but realized as a simple bore.
  • a preferably annular insert member 130 is inserted, which is locked by means of clamping pins 132 against rotation in the bore.
  • the insert element 130 now has in turn a recess 134, which is adapted to the cross section of the roller journal 112-1 or its extension 113-1. If this recess 134 is circular, no torque between the two sub-rollers 110-1 and 110-2 can be transmitted. However, if they are polygonal-shaped and in particular, for example, square, as in FIG. 5 is shown, it can also transmit a torque in cooperation with the correspondingly shaped cross-section of the roller journal 112-1 or 113-1.
  • the annular replacement part 130 is exposed to very large loads in the transmission of torques in the region of its recess 134, which is why it wears heavily, especially in the transition region between extension 113-1 and the recess.
  • the annular spare part can be exchanged as a wear part at any time simply and inexpensively.
  • FIGS. 1 to 5 a central axial cooling channel is shown in the strand guide roller 100, which is also partial roles - cross over.
  • an inner tube 142 may be used, whose outer diameter is smaller than the inner diameter of the cooling channel 140. It is then possible to transport in the inner tube 142, a cooling medium in one direction and the cooling medium to be transported in the space between the inner tube and the wall of the cooling channel 140, for example in the opposite direction.
  • a larger required cooling capacity and a plurality of cooling channels can be formed axially parallel, for example in the form of a turret role in the individual sub-roles.
  • These cooling channels in the individual sub-rollers can then optionally be sealed against each other or not.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Continuous Casting (AREA)

Description

Die Erfindung betrifft Strangführungsrollen einer Strangführungseinrichtung zum Führen eines gegossenen Strangs, z. B. einer Bramme, nach Verlassen einer Stranggießkokille.The invention relates to strand guide rollers of a strand guide device for guiding a cast strand, for. B. a slab, after leaving a continuous casting mold.

Der Stand der Technik zu Strangführungseinrichtungen mit Strangführungsrollen wird z. B. in den Druckschriften WO 2004/094087 und WO 2005/016578 beschrieben. Bei den aus den genannten Druckschriften bekannten Strangführungsrollen müssen alle einzelnen Bauteile, wie Rollenkörper oder Verdrehsicherungen z.B. in Form von Passfedern, auf eine gemeinsame zentrale Welle aufgefädelt werden; die Montage und eventuelle Demontage einer derartigen Strangführungsrolle ist deshalb sehr aufwendig und fordert den Einsatz von Spezialwerkzeugen. Außerdem ist die Realisierung einer Innenkühlung der Rollen nur sehr schwierig möglich.The state of the art to strand guiding devices with strand guide rollers is z. B. in the publications WO 2004/094087 and WO 2005/016578 described. In the known from the cited references strand guide rollers all individual components, such as reel body or anti-rotation, for example in the form of feather keys, are threaded onto a common central shaft; the assembly and eventual disassembly of such a strand guide roller is therefore very expensive and calls for the use of special tools. In addition, the realization of an internal cooling of the rollers is very difficult.

Stand der Technik bei Strangführungsrollen sind außerdem ein- oder mehrfach geteilte Strangführungsrollen, wie sie z.B. in der amerikanischen Patentschrift US 5,279,535 offenbart sind. Eine derartige Strangführungsrolle umfasst mehrere axial nebeneinander angeordnete Teilrollen, wobei jede Teilrolle zwei Rollenzapfen an ihren beiden Enden aufweist. Die beiden sich gegenüberstehenden Rollenzapfen von zwei nebeneinander angeordneten Teilrollen sind in jeweils eigenen axialen Lagern gelagert, welche typischerweise in einem geteilten Mittenlager zusammengefasst sind.State of the art in strand guide rollers are also single or multiple split strand guide rollers, as for example in the American patent US 5,279,535 are disclosed. Such a strand guide roller comprises a plurality of axially adjacent sub-rollers, each sub-roller has two roller pins at its two ends. The two opposing roller journals of two juxtaposed sub-rollers are each mounted in their own axial bearings, which are typically combined in a split center bearing.

Optional, in der Druckschrift US 5,279,535 jedoch nicht gezeigt, kann ein solches Mittenlager zwischen den beiden sich gegenüberstehenden Rollenzapfen zusätzlich eine Bogenzahnkupplung aufweisen zum Übertragen eines Drehmoments zwischen den beiden benachbarten Teilrollen.Optional, in the publication US 5,279,535 however, not shown, such a center bearing between the two opposing roller journal additionally having a curved tooth coupling for transmitting a torque between the two adjacent sub-rollers.

Derartige geteilte Mittenlager in Form von zwei separaten axial benachbarten Lagern mit optional dazwischen befindlicher Bogenzahnkupplung sind nachteiligerweise recht breit und bilden deshalb ein besonders breites Lagerfenster, im dem der zu führende bzw. zu stützende Strang nicht von den Teitrollen gestützt werden kann. Außerdem sind derartige Mitteilager aufgrund der Mehrzahl ihrer Einzelteile: recht teuer.Such split center bearings in the form of two separate axially adjacent bearings with optionally interposed Bogenzahnkupplung are disadvantageously quite wide and therefore form a particularly wide storage window in which the strand to be led or supported can not be supported by the Teitrollen. In addition, such Mitteilager are due to the majority of their items: quite expensive.

Im Stand der Technik sind weiterhin die Druckschriften GM 75 01 394 ; DE 24 20 514 und DE 100 24 513 A1 bekannt, welche ebenfalls alle Strangführungsrollen einer Strangführungseinrichtung zum Führen eines gegossenen Strangs offenbaren. Konkret offenbaren alle drei Druckschriften, dass eine solche Strangführungsrolle mindestens eine erste und eine zweite axial nebeneinander angeordnete Teilrolle aufweist, wobei die erste Teilrolle an ihrer der zweiten Teilrolle zugewandten Stirnseite einen Rollenzapfen aufweist. Zwischen der zweiten Teilrolle und dem Rollenzapfen der ersten Teilrolle ist jeweils eine Steckverbindung ausgebildet zum Steckverbinden der ersten und der zweiten Teilrolle miteinander. Zumindest In der deutschen Gebrauchsmusterschrift GM 75 01 394 und der deutschen Offenlegungsschrift DE 100 24 513 A1 ist darüber hinaus ein Mittenlager zwischen den beiden Teilrollen offenbart zum Aufnehmen und Lagern des Rollenzapfens der ersten Teilrolle, wobei das Mittenlager als ungeteiltes Einzellager ausgebildet ist.In the prior art are still the publications GM 75 01 394 ; DE 24 20 514 and DE 100 24 513 A1 which also disclose all the strand guide rollers of a strand guide device for guiding a cast strand. Specifically, all three publications disclose that such a strand guide roller has at least a first and a second axially adjacent sub-roll, wherein the first part of the roll on its second part of the roll facing end face has a roller pin. Between the second part of the role and the roller journal of the first part of a role each plug connection is designed to connect the first and the second part of the role with each other. At least in the German Utility Model GM 75 01 394 and the German Offenlegungsschrift DE 100 24 513 A1 In addition, a center bearing between the two sub-rollers disclosed for receiving and storing the roller pin of the first part of the role, wherein the center bearing is designed as an undivided single bearing.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, bei einer Strangführungsrolle mit mindestens einer ersten und einer zweiten Teilrolle eine Kupplung zwischen den beiden Teilrollen möglichst einfach und kostengünstig zu gestalten mit verbesserter Strangführung bereit zu stellen.Based on this prior art, the present invention seeks to provide a coupling between the two sub-rollers as simple and inexpensive as possible with a strand guide roller with at least a first and a second part role to provide improved strand management.

Diese Aufgabe wird durch den Gegenstand des Patentanspruchs 1 gelöst. Dieser Gegenstand ist dadurch gekennzeichnet, dass der Querschnitt des Rollenzapfens und der Querschnitt der zugeordneten Ausnehmung jeweils in Form eines Polygonwellenprofils ausgeformt sind, und dass das Einsatzelement mit Hilfe von Spannstiften verdrehsicher in der Bohrung arretiert ist.This object is solved by the subject matter of patent claim 1. This object is characterized in that the cross section of the roller journal and the cross section of the associated recess are each formed in the form of a polygon shaft profile, and that the insert element is locked against rotation in the bore by means of clamping pins.

Die beanspruchte Ausbildung des Querschnitts des Rollenzapfens und des Querschnitts der zugeordneten Ausnehmung jeweils in Form eines Polygonwellenprofils hat den Vorteil, dass die beiden benachbarten Teilrollen dann form- und kraftschlüssig zur Übertragung eines Drehmomentes miteinander verbunden sind. Die Übertragung eines Drehmomentes zwischen den Teifrollen ist insbesondere bei nicht mit einem Motor angetriebenen Teilrollen interessant. In diesem Fall bietet die form- und kraftschlüssige Steckverbindung den Vorteil, dass wenn auch nur eine Teirolle durch einen Kontakt zur transportierten Bramme in Drehung versetzt wird, die benachbarten Teilrollen mitgedreht werden, auch wenn diese selber keinen Kontakt zur Bramme haben. Dies hat den Vorteil, dass ethe übermäßige Erwärmung und damit ein Verziehen und Verklemmen dieser Teilrolle vermieden wird.The claimed configuration of the cross section of the roller journal and the cross section of the associated recess, each in the form of a polygonal shaft profile, has the advantage that the two adjacent partial rollers are then connected to each other positively and non-positively to transmit a torque. The transmission of torque between the Teifrollen is particularly interesting when not driven by a motor part rollers. In this case, the positive and non-positive connector has the advantage that if only one part roller is rotated by contact with the transported slab in rotation, the adjacent part rollers are rotated, even if they themselves have no contact with the slab. This has the advantage that it prevents excessive heating and thus warping and jamming of this partial roll.

Die Ausnehmung ist insbesondere bei polygonwelliger Ausformung zur Übertragung eines Drehmomentes sehr hohen Belastungen ausgesetzt und kann deshalb schnell verschleißen, indem die Ecken und Flanken während des Betriebs zunehmend abgerundet werden; eine Übertragung eines Drehmomentes wäre dann nur noch unzureichend oder gar nicht mehr möglich. Insbesondere in diesem Fall ist die Ausbildung der Ausnehmung in dem Einsatzteil vorteilhaft, weil das Einsatzteil als Verschließteil jederzeit kostengünstig auswechselbar ist. Ein alternatives Erneuern der Ausnehmung direkt in den Stirnseiten der Teilrollen wäre dagegen wesentlich teurer.The recess is subjected to very high loads, in particular in the case of polygonal-shaped formations for transmitting a torque, and can therefore wear out quickly, as the corners and flanks are increasingly rounded during operation; a transmission of torque would then only insufficient or not possible. In particular, in this case, the formation of the recess in the insert part is advantageous because the insert as a closing part at any time is inexpensively interchangeable. An alternative renewal of the recess directly in the end faces of the partial roles, however, would be much more expensive.

Das Mittenlager dient zum Lagern der ersten Teilrolle, indem es deren Rollenzapfen aufnimmt. Dafür muss das Mittellager lediglich als ungeteiltes Einzellager ausgebildet sein. Durch die Steckverbindung wird die zweite Teilrolle mit der ersten Teilrolle derart verbunden, dass sich die zweite Teitrolle an der ersten Teilrolle abstützen kann. Aufgrund der Steckverbindung mit der ersten Teilrolle bedarf die zweite Teilrolle keines eigenen Lagers; vielmehr ist die zweite Teilrolle über die Steckverbindung in bzw. an der ersten Teilrolle gelagert. Das im Stand der Technik zum Teil übliche zweite Lager innerhalb des Mittenlagers für die zweite Teilrolle kann deshalb genauso wie die Bogenzahnkupplung bei der erfindungsgemäßen Ausbildung der Strangführungsrolle entfallen. Weil das Mittenlager deshalb nur noch ein Einzellager aufweist kann die Breite des Mittenlagers und damit die Fensterbreite zwischen den beiden benachbarten Teilrollen gegenüber dem Stand der Technik verringert werden kann. Dies hat den Vorteil dass die Auflagefläche für die Bramme vergrößert ist, wodurch die Führungs- und Stützfunktion der Strangführungseinrichtung für die Bramme verbessert wird.The center bearing serves to support the first part of the role by receiving their roller pin. For the center bearing must be designed only as an undivided single bearing. Through the connector is the second part of the role with the first part of the role connected so that the second Teitrolle can be supported on the first part of the role. Due to the connector with the first part of the second roller role does not require its own bearing; Rather, the second part of the role is stored on the connector in or on the first part of the role. The second conventional bearing within the center bearing for the second part of the role in the prior art can therefore be dispensed with as well as the curved tooth coupling in the inventive design of the strand guide roller. Because the center bearing therefore only has a single bearing, the width of the center bearing and thus the width of the window between the two adjacent sub-rollers over the prior art can be reduced. This has the advantage that the bearing surface is increased for the slab, whereby the guiding and supporting function of the strand guiding device for the slab is improved.

Von Vorteil ist weiterhin, dass das als Einzellager, vorzugsweise in Form eines Standardlagers, ausgebildete Mittenlager, preisgünstiger ist als ein geteiltes Mittenlager. Außerdem sind die Teilrollen bei der erfindungsgemäßen Augestaltung der Strangführungsrolle einfach montierbar und demontierbar.It is furthermore advantageous that the center bearing formed as a single bearing, preferably in the form of a standard bearing, is less expensive than a split center bearing. In addition, the sub-roles are easy to assemble and disassemble in the inventive design of the strand guide roller.

Das Vorsehen von Kühlkanälen in den Teilrollen hat den Vorteil, dass die Teilrollen nicht überhitzen; das Ausmaß einer möglichen Kühlung kann durch die Anzahl der vorgesehenen Kühlkanäle beeinflusst werden. Wenn ein Kühlkanal ein Innenrohr aufweist, dessen Außendurchmesser kleiner ist als der Innendurchmesser des Kühlkanals, repräsentiert das Innenrohr eine erste Kühlleitung und der Zwischenraum zwischen dem Innenrohr und dem Kühlkanal eine zweite Kühlleitung. In der ersten und der zweiten Kühlleitung kann ein Kühlmittel gegenläufg geführt werden.The provision of cooling channels in the sub-rollers has the advantage that the sub-rollers do not overheat; the extent of possible cooling can be influenced by the number of cooling channels provided. When a cooling passage has an inner tube whose outer diameter is smaller than the inner diameter of the cooling passage, the inner tube represents a first cooling passage and the space between the inner tube and the cooling passage represents a second cooling passage. In the first and the second cooling line, a coolant can be passed gegenläufg.

Die Erfindung bezieht sich auf angetriebene und nicht angetriebene Strangführungsrollen gleichermaßen.The invention relates to driven and non-driven strand guide rollers alike.

Weitere Vorteilhafte Ausgestaltungen der Strangführungsrolle sind Gegenstand der abhängigen Ansprüche.Further advantageous embodiments of the strand guide roller are the subject of the dependent claims.

Der Beschreibung sind insgesamt fünf Figuren beigefügt, wobei

Figur 1
ein erstes Ausführungsbeispiel der erfindungsgemäßen Strangführungsrolle;
Figur 2
einen Querschnitt durch die Strangführungsrolle gemäß dem ersten Ausführungbeispiel;
Fig. 3
ein zweites Ausführungsbeispiel der erfindungsgemäßen Strangführungsrolle;
Fig. 4
einen Querschnitt durch die Strangführungsrolle gemäß dem zweiten Ausführungsbeispiel; und
Fig. 5
eine Detailansicht der Strangführungsrolle gemäß dem zweiten Ausführungsbeispiel;
zeigt.The description is a total of five figures attached, where
FIG. 1
a first embodiment of the strand guide roller according to the invention;
FIG. 2
a cross section through the strand guide roller according to the first embodiment;
Fig. 3
A second embodiment of the strand guide roller according to the invention;
Fig. 4
a cross section through the strand guide roller according to the second embodiment; and
Fig. 5
a detail view of the strand guide roller according to the second embodiment;
shows.

Die Erfindung wird nachfolgend in Form von Ausführungsbeispielen unter Bezugnahme auf die genannten Figuren detailliert beschrieben. In den Figuren sind gleiche Bauteile mit gleichen Bezugszeichen bezeichnet.The invention will now be described in detail in the form of embodiments with reference to said figures. In the figures, the same components are designated by the same reference numerals.

Figur 1 zeigt ein erstes Ausführungsbeispiel für die erfindungsgemäße Strangführungsrolle 100. Die Strangführungsrolle ist hier beispielhaft zweifach geteilt und umfasst dementsprechend insgesamt drei Teilrollen 110-1, 110-2, 110-3. Die zweifache Teilung wird repräsentiert durch zwei Mittenlager 120-1, 120-2, welche in den Übergangsbereichen zwischen jeweils zweien der genannten Teilrollen angeordnet sind. Die Mittenlager gewährleisten eine axiale Anordnung der Teilrollen nebeneinander. Die erste Teilrolle 110-1 ist in dem ersten Mittenlager 120-1 und dem Außenlager 120-0 gelagert, in dem diese beiden Lager jeweils einen Rollenzapfen 112-1, 112-0 der ersten Teilrolle 110-1 aufnehmen. FIG. 1 shows a first embodiment of the strand guide roller 100 according to the invention. The strand guide roller is here exemplified twice divided and accordingly comprises a total of three sub-rollers 110-1, 110-2, 110-3. The two-fold division is represented by two center bearings 120-1, 120-2, which are arranged in the transition regions between in each case two of the said partial rollers. The center bearings ensure an axial arrangement of the sub-rollers side by side. The first partial roller 110-1 is mounted in the first center bearing 120-1 and the outer bearing 120-0, in which these two bearings each receive a roller journal 112-1, 112-0 of the first partial roller 110-1.

Die zweite Teilrolle 110-2 ist nicht direkt in dem Mittenlager 120-1 gelagert. Stattdessen weist sie an ihrer der ersten Teilrolle 110-1 zugewandten Stirnseite 114-2 eine Ausnehmung 116-2 auf. Zur Aufnahme des Rollenzapfens 112-1 oder eines gegenüber dem eigentlichen Rollenzapfen abgedrehten Fortsatzes desselben.The second partial roller 110-2 is not supported directly in the center bearing 120-1. Instead, it has a recess 116-2 on its front side 114-2 facing the first partial roller 110-1. For receiving the roller journal 112-1 or a twisted against the actual roller pin extension of the same.

In Figur 2 ist zu erkennen, dass die Ausnehmung 116-2 entsprechend dem Querschnitt des Rollenzapfens 112-1 bzw. des Fortsatzes des Rollenzapfens ausgeformt bzw, konturiert ist. Im zusammengebauten Zustand sind dann, wie in Figur 1 gezeigt, die erste und die zweite Teilrolle 110-1, 110-2 in der Weise verbunden, dass der Rollenzapfen 112-1 in die entsprechend ausgeformte Ausnehmung 116-2 passgenau eingesteckt ist, Der Rollenzapfen 112-1 und die Ausnehmung 116-2 bilden insofern eine Steckverbindung für die beiden Teilrollen. Ein zweites Lager zur Aufnahme und Lagerung der zweiten Teilrolle 110-2 ist deshalb bei der erfindungsgemäßen Ausgestaltung der Strangführungsrolle entbehrlich. Deshalb ist das Mittenlager 120-1, 120-2 als ungeteiltes Einzellager ausgebildet, was den Vorteil einer Im Vergleich zu einem geteilten Mittenlager deutlich schmaleren Fensterbreite B hat.In FIG. 2 It can be seen that the recess 116-2 is formed or contoured in accordance with the cross section of the roller journal 112-1 or the extension of the roller journal. In the assembled state are then, as in FIG. 1 shown, the first and second part of the roller 110-1, 110-2 connected in such a way that the roller journal 112-1 is inserted into the correspondingly shaped recess 116-2 fit, The roller journal 112-1 and the recess 116-2 form insofar a connector for the two sub-roles. A second bearing for receiving and supporting the second part of the roll 110-2 is therefore unnecessary in the inventive design of the strand guide roller. Therefore, the center bearing 120-1, 120-2 is formed as an undivided single bearing, which has the advantage of a significantly narrower window width B compared to a split center bearing.

Alternativ zu der In Figur 1 gezeigten Ausführungsform, sind selbstverständlich auch andere Ausführungsformen für die Steckverbindung denkbar. So ist es alternativ denkbar, dass die zweite Teilrolle 110-2 an ihrer der ersten Teilrolle zugewandten Stimselte 114-2 keine Aussparung, sondern ebenfalls einen Rollenzapfen aufwelst, welcher einen kleineren Durchmesser als der Rollenzapfen 112-1 der ersten Teilrolle 110-1 hat. Die Steckverbindung könnte dann dadurch realisiert sein, dass dieser Rollenzapfen der zweiten Teilrolle in eine Ausnehmung in der Stimseite des Rollenzapfens 112-1 der ersten Teilrolle eingesteckt ist. Denkbar ist weiterhin selbstverständlich auch das Ausbildung der Steckverbindung in Form eines separaten Bauteils zwischen den beiden Teilrollen 110-1 und 110-2 außerhalb des Mittenlagers 120-1.Alternative to the In FIG. 1 embodiment shown, of course, other embodiments for the connector are conceivable. Thus, it is alternatively conceivable that the second partial roller 110-2 aufwelst on its the first part of the role facing the stimulus 114-2 no recess, but also a roller pin, which has a smaller diameter than the roller journal 112-1 of the first part of the roller 110-1. The plug connection could then be realized by inserting this roller journal of the second partial roller into a recess in the end face of the roller journal 112-1 of the first partial roller. It is also conceivable, of course, the formation of the connector in the form of a separate component between the two sub-rollers 110-1 and 110-2 outside of the center bearing 120-1.

Die Steckverbindung kann bei der erfindungsgemäßen Strangführungsrolle als Kupplung zur Übertragung eines Drehmomentes zwischen den beiden benachbarten Teilrollen oder lediglich als Drehlager ausgebildet sein, welches keine Übertragung eines Drehmomentes erlaubt. Aus den oben im allgemeinen Teil der Beschreibung genannten Gründen ist jedoch eine Ausbildung als Kupplung auch bei nicht extern durch eine Antriebseinrichtung 150 (siehe Figur 3) angetriebenen Strangführungsrolle 100 sinnvoll. Eine Kupplungsfunktion kann bei der oben beschriebenen Ausführungsform, bei welcher ein Rollenzapfen in einer Ausnehmung eingesteckt wird, einfach dadurch realisiert werden, dass die Ausnehmung nicht kreisförmig, sondern z.B. in Form eines Polygonwellenprofils ausgebildet wird. Ein Beispiel dafür ist in Figur 2 gezeigt.The connector may be formed in the strand guide roller according to the invention as a clutch for transmitting a torque between the two adjacent sub-rollers or only as a pivot bearing, which does not allow transmission of torque. For the reasons mentioned above in the general part of the description, however, training as a clutch is not external to a drive device 150 (see FIG. 3 ) driven strand guide roller 100 makes sense. A coupling function may be included the embodiment described above, in which a roller pin is inserted in a recess, can be realized simply by not forming the recess in a circular shape but, for example, in the form of a polygonal shaft profile. An example of this is in FIG. 2 shown.

Figur 3 zeigt ein zweites Ausführungsbeispiel für die erfindungsgemäße Strangführungsrolle 100, welche sich von dem ersten Ausführungsbeispiel lediglich in der Ausgestaltung der Steckverbindung unterscheidet. In Figur 4 ist diese Ausführungsform der Steckverbindung vergrößert gezeigt; sie wird deshalb nachfolgend unter Bezugnahme auf Figur 4 näher beschrieben. Bei der in Figur 4 gezeigten Steckverbindung sind die Ausnehmung 116-2 in der zweiten Teilrolle 110-2 und der Rollenzapfen 112-1 in der ersten Teilrolle 110-1 nicht passgenau aufeinander abgestimmt, sondern vielmehr ist der Querschnitt des Rollenzapfens 112-1 bzw. dessen Fortsatzes wesentlich kleiner als der Querschnitt der Ausnehmung 116-2. Außerdem ist die Ausnehmung 116-2- auch wenn die Steckverbindung als Kupplung realisiert wird - aus Einfachheitsgründen vorzugsweise nicht polygonwellenförmig begrenzt, sondern als einfache Bohrung realisiert. In diese Bohrung ist ein vorzugsweise ringförmiges Einsatzelement 130 eingesetzt, welches mit Hilfe von Spannstiften 132 verdrehsicher in der Bohrung arretiert ist. Das Einsatzelement 130 weist nun seinerseits eine Ausnehmung 134 auf, welche passgenau auf den Querschnitt des Rollenzapfens 112-1 bzw. dessen Fortsatzes 113-1 angepasst ist. Wenn diese Ausnehmung 134 kreisförmig ausgebildet ist, kann kein Drehmoment zwischen den beiden Teilrollen 110-1 und 110-2 übertragen werden. Wenn sie jedoch polygonwellenförmig und insbesondere beispielsweise quadratisch, wie in Figur 5 gezeigt, ausgebildet ist, kann sie im Zusammenwirken mit dem entsprechend ausgeformten Querschnitt des Rollenzapfens 112-1 bzw. 113-1 auch ein Drehmoment übertragen. Das ringförmige Ersatzteil 130 ist grade bei der Übertragung von Drehmomenten im Bereich seiner Ausnehmung 134 sehr großen Belastungen ausgesetzt, weshalb es gerade im Übergangsbereich zwischen Fortsatz 113-1 und der Ausnehmung stark verschleißt. Forteilhafterweise ist das ringförmige Ersatzteil als Verschleißteil jederzeit einfach und kostengünstig auswechselbar. FIG. 3 shows a second embodiment of the strand guide roller 100 according to the invention, which differs from the first embodiment only in the configuration of the connector. In FIG. 4 this embodiment of the connector is shown enlarged; It will therefore be described below with reference to FIG. 4 described in more detail. At the in FIG. 4 the plug-in connection shown, the recess 116-2 in the second part of the roller 110-2 and the roller journal 112-1 in the first part of the role 110-1 are not precisely matched, but rather the cross section of the roller journal 112-1 and its extension is much smaller than the cross section of the recess 116-2. In addition, the recess 116-2- even if the connector is realized as a coupling - for reasons of simplicity preferably not polygonal-shaped limited, but realized as a simple bore. In this bore, a preferably annular insert member 130 is inserted, which is locked by means of clamping pins 132 against rotation in the bore. The insert element 130 now has in turn a recess 134, which is adapted to the cross section of the roller journal 112-1 or its extension 113-1. If this recess 134 is circular, no torque between the two sub-rollers 110-1 and 110-2 can be transmitted. However, if they are polygonal-shaped and in particular, for example, square, as in FIG. 5 is shown, it can also transmit a torque in cooperation with the correspondingly shaped cross-section of the roller journal 112-1 or 113-1. The annular replacement part 130 is exposed to very large loads in the transmission of torques in the region of its recess 134, which is why it wears heavily, especially in the transition region between extension 113-1 and the recess. For the sake of practicality, the annular spare part can be exchanged as a wear part at any time simply and inexpensively.

In den Figuren 1 bis 5 ist ein zentraler axialer Kühlkanal in der Strangführungsrolle 100 gezeigt, welcher auch Teilrollen - übergreifend durchgängig ist. In Figur 4 ist zu erkennen, dass in diesen Kühlkanal 140 ein Innenrohr 142 eingesetzt sein kann, dessen Außendurchmesser kleiner ist als der Innendurchmesser des Kühlkanals 140. Es besteht dann die Möglichkeit, in dem Innenrohr 142 ein Kühlmedium in einer Richtung zu transportieren und das Kühlmedium in dem Zwischenraum zwischen dem Innenrohr und der Wandung des Kühlkanals 140 z.B. in entgegen gesetzter Richtung zu transportieren. Bei einer größeren erforderlichen Kühlleistung können auch mehrere Kühlkanäle achsparallel, z.B. in Form einer Revolverrolle in den einzelnen Teilrollen ausgebildet sein. Diese Kühlkanäle in den einzelnen Teilrollen können dann wahlweise gegeneinander abgedichtet sein oder nicht.In the FIGS. 1 to 5 a central axial cooling channel is shown in the strand guide roller 100, which is also partial roles - cross over. In Figure 4 it can be seen that in this cooling channel 140, an inner tube 142 may be used, whose outer diameter is smaller than the inner diameter of the cooling channel 140. It is then possible to transport in the inner tube 142, a cooling medium in one direction and the cooling medium to be transported in the space between the inner tube and the wall of the cooling channel 140, for example in the opposite direction. With a larger required cooling capacity and a plurality of cooling channels can be formed axially parallel, for example in the form of a turret role in the individual sub-roles. These cooling channels in the individual sub-rollers can then optionally be sealed against each other or not.

Claims (5)

  1. Strip guide roller (100) of a strip guide device for guiding a cast strip (200), for example a slab, comprising:
    at least one first part roller (110-1) and at least one second part roller (110-2) arranged axially adjacent to one another, wherein the first part roller (110-1) has at its end facing the second part roller (110-2) a roller pin (112-1);
    and at least one centre bearing (120-1, 120-2) in the form of an undivided single bearing between the two part rollers (110-1, 110-2) for receiving and mounting the roller pin (112-1) of the first part roller;
    wherein a plug connection is formed between the second part roller (110-2) and the roller pin (112-1) of the first part roller (110-1) for plug-connecting the first and second part rollers together; and
    wherein the plug connection is constructed in the form that the second part roller (110-2) has at its end (114-2) facing the first part roller (110-1) a bore with an insert element (130) inserted therein, in the centre of which a precisely fitting recess for reception of the roller pin of the first part roller is formed;
    characterised in that
    the cross-section of the roller pin (112-1) and the cross-section of the associated recess are each constructed in the form of a polygonal shaft profile; and
    the insert element (130) is locked in the bore with the help of dowel pins (132) to be secure against rotation.
  2. Strip guide roller (100) according to claim 1, characterised by an axial and/or at least one axially parallel cooling channel (140), which extends through the two part rollers (110-1, 110-2), for the passage of a coolant.
  3. Strip guide roller (100) according to claim 2, characterised in that an inner pipe (142) is guided in the cooling channel (140), the outer diameter of the inner tube being smaller than the inner diameter of the cooling channel (140).
  4. Strip guide roller (100) according to claim 1, characterised in that the two adjacent part rollers (110-1, 110-2) each have an individual cooling, wherein the two part rollers are then sealed relative to one another in the region of the centre bearing (120).
  5. Strip guide roller (100) according to any one of the preceding claims, characterised by a drive device (150) for driving the strip guide roller (100).
EP07723801A 2006-04-21 2007-03-30 Strand guide roller Active EP2032289B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006019147 2006-04-21
DE102006040011A DE102006040011A1 (en) 2006-04-21 2006-08-25 Guiding roller for guiding a cast strand, e.g. slab, comprises a plug-type connection between a second partial roller and the roller pin of a first partial roller to join the partial rollers together and a middle bearing
PCT/EP2007/002859 WO2007121821A1 (en) 2006-04-21 2007-03-30 Strand guide roller

Publications (2)

Publication Number Publication Date
EP2032289A1 EP2032289A1 (en) 2009-03-11
EP2032289B1 true EP2032289B1 (en) 2012-10-03

Family

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Application Number Title Priority Date Filing Date
EP07723801A Active EP2032289B1 (en) 2006-04-21 2007-03-30 Strand guide roller

Country Status (12)

Country Link
US (1) US7971629B2 (en)
EP (1) EP2032289B1 (en)
JP (1) JP5270534B2 (en)
KR (1) KR101060551B1 (en)
AU (1) AU2007241419B2 (en)
BR (1) BRPI0710825B1 (en)
CA (1) CA2648032C (en)
DE (1) DE102006040011A1 (en)
ES (1) ES2391202T3 (en)
MX (1) MX2008012785A (en)
RU (1) RU2391180C1 (en)
WO (1) WO2007121821A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014223010A1 (en) 2014-08-07 2016-02-11 Sms Group Gmbh Strand guide roller
WO2020156742A1 (en) 2019-02-01 2020-08-06 Sms Group Gmbh Strand-guiding roller of a strand guide for guiding a cast metal strand

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008029944A1 (en) * 2008-06-26 2009-12-31 Sms Siemag Aktiengesellschaft Modular strand guide roller
RU2553139C2 (en) * 2012-07-04 2015-06-10 Актиеболагет Скф Distributor, roller line and device for continuous casting
RU2550446C2 (en) * 2012-07-04 2015-05-10 Актиеболагет Скф Roller shell, roller guide line and device for continuous casting
EP3880486A4 (en) 2018-11-16 2022-06-01 Hewlett-Packard Development Company, L.P. Co-axial split drive rollers

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DE7501394U (en) * 1974-01-21 1975-10-16 Voeest Alpine Montan Ag Guide device for wide cast strands
FR2258235B1 (en) * 1974-01-21 1981-02-06 Voest Ag
IT1034997B (en) * 1974-04-27 1979-10-10 Kloeckner Werke Ag GUIDE ROLL DIVIDED INTO SECTIONS SUPPORTED IN A PLURALITY OF POINTS FOR CONTINUOUS CASTING PLANTS
DE2420514B1 (en) * 1974-04-27 1975-07-10 Kloeckner-Werke Ag, 4100 Duisburg Guide roller with multiple bearings and subdivided into roller sections for continuous casting plants
DE3013484A1 (en) * 1980-04-08 1981-10-15 Schloemann-Siemag AG, 4000 Düsseldorf COAXIAL NEXT BEARING STRAIGHT GUIDE ROLLS IN A STEEL CONTINUOUS CASTING SYSTEM FOR SLABS
JPS59189053A (en) * 1983-04-12 1984-10-26 Sumitomo Heavy Ind Ltd Split type roll of continuous casting machine
JPH0233957Y2 (en) * 1985-12-16 1990-09-12
AT407721B (en) * 1999-06-02 2001-05-25 Voest Alpine Ind Anlagen LEAD ROLE
CN1268801C (en) 2001-12-24 2006-08-09 三星电子株式会社 Washing machine
AT412327B (en) * 2003-04-23 2005-01-25 Voest Alpine Ind Anlagen STRAND LEADERSHIP
AT412851B (en) * 2003-07-18 2005-08-25 Voest Alpine Ind Anlagen INDOOR COOLED EXTRACTOR ROLL

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014223010A1 (en) 2014-08-07 2016-02-11 Sms Group Gmbh Strand guide roller
WO2020156742A1 (en) 2019-02-01 2020-08-06 Sms Group Gmbh Strand-guiding roller of a strand guide for guiding a cast metal strand
DE102019201319A1 (en) 2019-02-01 2020-08-06 Sms Group Gmbh Strand guide roller of a strand guide for guiding a cast metallic strand

Also Published As

Publication number Publication date
ES2391202T3 (en) 2012-11-22
CA2648032C (en) 2014-04-29
WO2007121821A1 (en) 2007-11-01
KR20080104192A (en) 2008-12-01
BRPI0710825B1 (en) 2015-08-11
EP2032289A1 (en) 2009-03-11
BRPI0710825A2 (en) 2011-08-23
MX2008012785A (en) 2008-10-15
JP5270534B2 (en) 2013-08-21
AU2007241419A1 (en) 2007-11-01
JP2009534189A (en) 2009-09-24
RU2391180C1 (en) 2010-06-10
KR101060551B1 (en) 2011-08-30
CA2648032A1 (en) 2007-11-01
US20090165985A1 (en) 2009-07-02
DE102006040011A1 (en) 2007-10-25
US7971629B2 (en) 2011-07-05
AU2007241419B2 (en) 2010-02-25

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