EP0022121A1 - Supporting and guiding frame for continuous casting plants - Google Patents

Supporting and guiding frame for continuous casting plants Download PDF

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Publication number
EP0022121A1
EP0022121A1 EP80890060A EP80890060A EP0022121A1 EP 0022121 A1 EP0022121 A1 EP 0022121A1 EP 80890060 A EP80890060 A EP 80890060A EP 80890060 A EP80890060 A EP 80890060A EP 0022121 A1 EP0022121 A1 EP 0022121A1
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EP
European Patent Office
Prior art keywords
supporting structure
tie rods
supporting
actuators
cross members
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
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EP80890060A
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German (de)
French (fr)
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EP0022121B1 (en
Inventor
Johannes Cordella
Franz Bayer
Erich Felbermayer
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Voestalpine AG
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Voestalpine AG
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Publication of EP0022121A1 publication Critical patent/EP0022121A1/en
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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 supporting and guiding frame for continuous casting plants, in particular for slab continuous casting plants, with the strand supporting roller tracks on two opposite sides, one of the two roller tracks being arranged on a first supporting structure and the other roller track being arranged on a second supporting structure which is against the first supporting structure can be tensioned or connected to the first structure by means of a number of tie rods, actuators being provided for adjusting the second structure relative to the first structure.
  • a support and guide frame of this type in the form of an arc is known from AT-PS 343 303.
  • the first supporting structure is formed by a truss and cross and longitudinal beams attached to it.
  • the second supporting structure can be moved relative to the first supporting structure by means of pressure medium cylinders, which are articulated on the one hand on the cross members of the second supporting structure and on the other hand on the truss of the first supporting structure, the second supporting structure being displaced along the tie rods for the purpose of adjusting the roller conveyor distance.
  • the invention aims to avoid these disadvantages and difficulties and has the task of creating a support and guide structure of the type mentioned, the supporting structures can be easily separated, u. even if a large number of tie rods are provided or if the tie rods are arranged at an acute angle to one another as a result of an arch shape of the support and guide frame. Furthermore, for the purpose of detaching the two supporting structures from one another, no further devices are required, but rather the actuators required for the purpose of adjusting the two supporting structures against one another are to be found.
  • the actuators are connected on the one hand to the second structure and on the other hand to the tie rods, such that the tie rods are releasably attached to the first structure and after releasing the connecting means from the position connecting the structures by means of the actuators the first structure can be removed and retracted into a retracted position in the second structure.
  • each of the two structures is formed from cross members and mounted on them, extending over the entire length of the frame and supporting longitudinal members, and the tie rods connect mutually opposite cross members of the two structures and at the ends of the opposite cross members are arranged, is characterized in that the tie rods are releasably connected to the cross members of the first structure and the actuators are fixed on the one hand to the cross members of the second structure and on the other hand connected to the outer ends of the tie rods.
  • two tie rods arranged opposite each other are connected by means of a crossbar articulated at their ends and the actuators are approximately parallel to the tie rods arranged and hinged to the trusses.
  • the actuators are arranged between the tie rods located opposite one another and connected to the crossbar.
  • a relief device is expediently provided between the cross members and the ends of the tie rods articulated on the cross members.
  • Fig. 1 shows a view of the support and guide frame in the direction of the longitudinal axis, partly in section.
  • Fig. 2 shows an analog representation of the support and guide frame with roller tracks set to a minimum casting thickness.
  • Fig. 3 also shows an analog representation of this support and guide frame with retracted tie rods.
  • Fig. 4 shows a partial view in the direction of arrow IV of FIG. 1 again.
  • 5 shows a schematic representation on a reduced scale of a section taken along the line VV of FIG. 1 through an arched support and guide frame.
  • the strand 3 is supported and guided between the roller conveyors 1 and 2.
  • the rollers 4 of each of the roller tracks are inserted with brackets 5 in bearing blocks 6, which are fastened to side members 7, 8.
  • brackets 5 are provided in the embodiment shown, distributed over the longitudinal extent of the rollers.
  • the longitudinal members 7 of the lower roller conveyor are fastened to cross members 9 and, together with the cross members, form a first support structure 10.
  • the longitudinal members 8 of the upper roller conveyor are also mounted on cross members 11 and together with these form a second support assembly 12.
  • On the cross members 9 of the first Support structure 10 are rigidly attached to the sides of the ends of the rollers 4 hollow struts 13 which have a flange 14 at their upper end.
  • tie rods 17 which are aligned with the interior 18 of the hollow struts 13 and can be inserted into the cavity. 1 and 2, the tie rods are shown in the position A connecting the structures, in which the tie rods protrude into the struts 13 and are attached to the struts 13.
  • the tie rods 17 are fastened to the struts by means of insert pieces 19.
  • the ends of the tie rods 17 projecting beyond the cross members of the second traction mechanism are each provided with a collar 20.
  • This federal government is supported by a relief device 21 either directly or with an intermediate layer from washers 16 against one end 15 of the cross member 11 of the second structure 12.
  • a nut 23 is screwed onto a threaded extension 22 of the tie rod, which clamps a sleeve 24 against the collar 20.
  • two diametrically opposed bolts 25 are mounted, on which tabs 26 of a carrier 27 are articulated.
  • Each carrier 27 connects two tie rods 17, which are provided at the ends 15 of a cross member 11.
  • an approximately parallel pressure medium cylinder 29 is provided, which is articulated on the one hand on the support 27 and on the other hand on the cross member 11 of the second supporting structure.
  • the pressure medium cylinders 29 (another actuating device, for example a rotatable spindle etc. could be provided in their place) are each located between the tie rods 17.
  • the relief device 21 has two bushes 30, 31 which form a thread with corresponding helical sliding surfaces.
  • One of the sleeves 30, 31 is rotatable relative to the other sleeve, u. between by means of a pressure medium cylinder 32 articulated on one of the two bushes, which are arranged on mutually opposite tie rods 17, whereby the distance of the outer bearing surfaces 33, 34 of the sleeves 30, 31 between cross member 11 and collar 20 of the respective tie rod 17 changes can be.
  • these bushes 30, 31 it is thus possible to clamp a cross member 11 of the second supporting structure 12 against the struts 13 and thus against the first supporting structure 10 (with an insert 19 inserted) or to loosen the fixation of the two supporting structures 10, 12.
  • wedges penetrating the tie rods could also be provided.
  • the function of the support structure is as follows: If the distance between the roller tracks 1, 2 is to be changed, the relief device 21 is first actuated, that is to say the fixing of the supporting structures is released, whereupon the second supporting structure is held in a position by means of the pressure medium cylinders 29, which enables replace the washers 16. After the washers 16 have been removed, the second supporting structure 12 is moved into the desired new position by means of the pressure medium cylinders 29. Corresponding Beila J disks 16 are then used above or below the cross members 11 of the second supporting structure 12 (depending on the new position of the second supporting structure 12), whereupon the relief device 21 again braces the second supporting structure against the first supporting structure.
  • the insert pieces 19, which connect the tie rods 17 to the struts 13 of the first structure 10 are removed, whereupon the pressure medium cylinders 29 and the tie rods, as in FIG Fig. 3 shown, occupy the retreat position B.
  • the second supporting structure 12 can then be lifted off the first 10 with the aid of an indoor crane.
  • the traverse 27 prevents the tie rods 17 from jamming within the struts 13 or within the cross members 11 of the second supporting structure 12.
  • each of the pressure medium cylinders 29 performs two functions, namely firstly lifting and lowering the second supporting structure 12 compared to the first 10 for the purpose of changing the distance of the roller conveyors 1, 2 and secondly that Retracting the tie rods 17 into the retracted position B.
  • the second supporting structure is installed on the first one, there is also no need to manipulate the pressure medium cylinders.
  • the support and guide frame according to the invention is suitable both for straight roller conveyors and for curved roller conveyors.
  • arcuate roller conveyors FIG. 5
  • the arcuate longitudinal members 8 'of the second supporting structure 12 are fastened to the cross members 11 by means of a longitudinal displacement of the longitudinal members 8' relative to the cross members 11, as is the case with the sliding blocks 35 known from AT-PS 343 303 Support and guide arch is realized.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Continuous Casting (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)

Abstract

Bei einem Stütz- und Führungsgerüst für Stranggießanlagen, insbesondere für Brammenstranggießanlagen, mit den Strang (3) an zwei gegenüberliegenden Seiten stützenden Rollenbahnen (1, 2) ist eine der beiden Rollenbahnen (2) an einem ersten Tragwerk (10) und die andere Rollenbahn (1) an einem zweiten Tragwerk (12) angeordnet, wobei das zweite Tragwerk (12) gegen das erste Tragwerk (10) mittels einer Anzahl von Zugankern (17) spannbar bzw. mit dem ersten Tragwerk (10) verbindbar ist und wobei weiters Stelltriebe (29) zur Verstellung des zweiten Tragwerkes (12) gegenüber dem ersten Tragwerk (10) vorgesehen sind. Um die beiden Tragwerke (10, 12) leicht voneinander trennen zu können, u. zw. auch dann, wenn eine Vielzahl von Zuganken (17) vorgesehen sind, und zum Zweck des Lösens der beiden Tragwerke (10, 12) voneinander mit den zum Zweck des Verstellens der beiden Tragwerke (10, 12) gegeneinander erforderlichen Stelltrieben (29) das Auslangen zu finden, sind die Stelltriebe (29) einerseits mit dem zweiten Tragwerk (12) und anderseits mit den Zugankern (17) verbunden, u. zw. derart, daß die Zuganker (17) an dem ersten Tragwerk (10) lösbar befestigt sind und nach Lösen der Verbindungsmittel (19) aus der die Tragwerke verbindenden Position (A) mittels der Stelltriebe (29) aus dem ersten Tragwerk (10) entfernbar und in eine Rückzugsposition (B) in das zweite Tragwerk (12) einziehbar sind.In the case of a support and guide frame for continuous casting plants, in particular for slab continuous casting plants, with the roller tracks (1, 2) supporting two opposite sides (1), one of the two roller tracks (2) is on a first supporting structure (10) and the other roller track ( 1) arranged on a second supporting structure (12), the second supporting structure (12) being tensionable against the first supporting structure (10) by means of a number of tie rods (17) or being connectable to the first supporting structure (10) and further comprising actuators ( 29) for adjusting the second structure (12) relative to the first structure (10) are provided. To easily separate the two structures (10, 12) from each other, u. even if a plurality of tie rods (17) are provided and for the purpose of detaching the two supporting structures (10, 12) from one another with the actuators (29) required for the purpose of adjusting the two supporting structures (10, 12) against each other To find enough, the actuators (29) are connected on the one hand to the second supporting structure (12) and on the other hand to the tie rods (17), u. between such that the tie rods (17) are releasably attached to the first structure (10) and after releasing the connecting means (19) from the position (A) connecting the structures by means of the actuators (29) from the first structure (10) removable and retractable into a retracted position (B) in the second supporting structure (12).

Description

Die Erfindung betrifft ein Stütz- und Führungsgerüst für Stranggießanlagen, insbesondere für Brammenstranggießanlagen, mit den Strang an zwei gegenüberliegenden Seiten stützenden Rollenbahnen, wobei eine der beiden Rollenbahnen an einem ersten Tragwerk und die andere Rollenbahn an einem zweiten Tragwerk angeordnet sind, welches gegen das erste Tragwerk mittels einer Anzahl von Zugankern spann- bzw. mit dem ersten Tragwerk verbindbar ist, wobei Stelltriebe zur Verstellung deszweiten Tragwerkes gegenüber dem ersten Tragwerk vorgesehen sind.The invention relates to a supporting and guiding frame for continuous casting plants, in particular for slab continuous casting plants, with the strand supporting roller tracks on two opposite sides, one of the two roller tracks being arranged on a first supporting structure and the other roller track being arranged on a second supporting structure which is against the first supporting structure can be tensioned or connected to the first structure by means of a number of tie rods, actuators being provided for adjusting the second structure relative to the first structure.

Ein Stütz- und Führungsgerüst dieser Art in Bogenform ist aus der AT-PS 343 303 bekannt. Bei diesem Stütz-und Führungsgerüst ist das erste Tragwerk von einem Fachwerk und an diesem befestigten Quer- und Längsträgern gebildet. Das zweite Tragwerk ist gegenüber dem ersten Tragwerk mittels Druckmittelzylindern, die einerseits an den Querträgern des zweiten Tragwerkes und anderseits am Fachwerk des ersten Tragwerkes angelenkt sind, bewegbar, wobei das zweite Tragwerk entlang der Zuganker zwecks Verstellung des Rollenbahnabstandes verschoben wird.A support and guide frame of this type in the form of an arc is known from AT-PS 343 303. In this support and guide scaffold, the first supporting structure is formed by a truss and cross and longitudinal beams attached to it. The second supporting structure can be moved relative to the first supporting structure by means of pressure medium cylinders, which are articulated on the one hand on the cross members of the second supporting structure and on the other hand on the truss of the first supporting structure, the second supporting structure being displaced along the tie rods for the purpose of adjusting the roller conveyor distance.

Bei diesem bekannten Stütz- und Führungsgerüst kann es beim Auseinandernehmen der beiden Tragwerke zu Schwierigkeiten kommen, insbesondere dann, wenn die die beiden Tragwerke verbindenden Zuganker sehr lang - für einen großen Verstellweg des zweiten Tragwerkes - ausgeführt sind, oder wenn sich das Stütz- und Führungsgerüst über eine große Länge der Stranggießanlage, beispielsweise über den gesamten Bogen einer Bogenstranggießanlage erstreckt, wobei eine Vielzahl von Zugankern vorgesehen sind, die zueinander in spitzem Winkel angeordnet sind.In this known supporting and guiding scaffold, difficulties can arise when the two supporting structures are taken apart, especially if the tie rods connecting the two supporting structures are very long - for a large adjustment path of the second supporting structure - or if the supporting and guiding scaffold extends over a large length of the continuous casting installation, for example over the entire arc of a continuous casting installation, a large number of tie rods being provided which are arranged at an acute angle to one another.

Auch bei ähnlich gebauten Stütz- und Führungsgerüsten für eine geradlinige Stützstrecke kann es zu Schwierigkeiten beim Trennen der beiden Tragwerke kommen. Ist beispielsweise eine Vielzahl von Zugankern vorgesehen, so ist es schwierig, diese genau parallel zueinander auszurichten. Insbesondere nach längerer Betriebszeit kann es zu einem Klemmen der Zuganker, vor allem wenn diese sehr lang ausgebildet sind, im abzuhebenden Tragwerk kommen.Even with similarly constructed support and guide scaffolds for a straight support section, difficulties can arise when separating the two structures. If, for example, a large number of tie rods are provided, it is difficult to align them exactly parallel to one another. Especially after a long period of operation, the tie rods may jam in the structure to be lifted, especially if they are very long.

Aus der AT-PS 341 698 ist weiters ein bogenförmiges Stütz- und Führungsgerüst mit zwei gegeneinander mittels Zuganker spannbaren, je eine Rollenbahn tragenden Tragwerken bekannt, bei dem die Zuganker von einem Tragwerk gelöst und in das andere Tragwerk zurückgezogen werden können. Bei diesem Stütz- und Führungsgerüst sind jedoch die Tragwerke nicht gegeneinander verstellbar, sondern sie befinden sich stets im gleichbleibenden Abstand; verstellbar sind bloß die an einem der Tragwerke angeordneten Bogenlängsträger gegenüber diesem Tragwerk, wozu eine Vielzahl die Bogenlängsträger mit diesem Tragwerk verbindenden Bolzen eigens gelöst, mittels eigener Verstelleinridlungen verstellt und anschließend wieder an diesem Tragwerk in ihrer neuen Lage fixiert werden müssen.From AT-PS 341 698 an arc-shaped supporting and guiding scaffold with two structures that can be tensioned against each other by means of tie rods, each carrying a roller conveyor, is known, in which the tie rods can be detached from one structure and retracted into the other structure. With this support and guide scaffold, however, the supporting structures are not mutually adjustable, but are always at a constant distance; The only thing that can be adjusted is the longitudinal arch girders arranged on one of the structures opposite this structure, for which a large number of bolts connecting the arch longitudinal girders with this structure have been loosened, adjusted by means of their own adjustment devices and then fixed again to this structure in their new position.

Die Erfindung bezweckt die Vermeidung dieser Nachteile und Schwierigkeiten und stellt sich die Aufgabe, ein Stütz- und Führungsgerüst der eingangs bezeichneten Art zu schaffen, dessen Tragwerke leicht voneinander getrennt werden können, u. zw. auch dann, wenn eine Vielzahl von Zugankern vorgesehen sind bzw. wenn die Zuganker infolge einer Bogenform des Stütz- und Führungsgerüstes zueinander in einem spitzen Winkel angeordnet sind. Weiters sollen zum Zweck des Lösens der beiden Tragwerke voneinander keine weiteren Einrichtungen benötigt werden, sondern es soll mit den zum Zweck des Verstellens der beiden Tragwerke gegeneinander erforderlichen Stelltrieben das Auslangen gefunden werden.The invention aims to avoid these disadvantages and difficulties and has the task of creating a support and guide structure of the type mentioned, the supporting structures can be easily separated, u. even if a large number of tie rods are provided or if the tie rods are arranged at an acute angle to one another as a result of an arch shape of the support and guide frame. Furthermore, for the purpose of detaching the two supporting structures from one another, no further devices are required, but rather the actuators required for the purpose of adjusting the two supporting structures against one another are to be found.

Diese Aufgaben werden erfindungsgemäß dadurch gelöst, daß die Stelltriebe einerseits mit dem zweiten Tragwerk und anderseits mit den Zugankern verbunden sind, derart, daß die Zuganker an dem ersten Tragwerk lösbar befestigt sind und nach Lösen der Verbindungsmittel aus der die Tragwerke verbindenden Position mittels der Stelltriebe aus dem ersten Tragwerk entfernbar und in eine Rückzugsposition in das zweite Tragwerk einziehbar sind.These objects are achieved in that the actuators are connected on the one hand to the second structure and on the other hand to the tie rods, such that the tie rods are releasably attached to the first structure and after releasing the connecting means from the position connecting the structures by means of the actuators the first structure can be removed and retracted into a retracted position in the second structure.

Eine bevorzugte Ausführungsform,.bei der jedes der beiden Tragwerke aus Querträgern und an diesen montierten, sich über die gesamte Länge des Gerüstes erstreckenden, die Rollen tragenden Längsträgern gebildet ist und wobei die Zuganker einander gegenüberliegende Querträger der beiden Tragwerke miteinander verbinden und an den Enden der einander gegenüberliegenden Querträger ange-, ordnet sind, ist dadurch gekennzeichnet, daß die Zuganker mit den Querträgern des ersten Tragwerkes lösbar verbunden sind und die Stelltriebe einerseits an den Querträgern des zweiten Tragwerkes befestigt sind und anderseits mit den äußeren Enden der Zuganker verbunden sind.A preferred embodiment, in which each of the two structures is formed from cross members and mounted on them, extending over the entire length of the frame and supporting longitudinal members, and the tie rods connect mutually opposite cross members of the two structures and at the ends of the opposite cross members are arranged, is characterized in that the tie rods are releasably connected to the cross members of the first structure and the actuators are fixed on the one hand to the cross members of the second structure and on the other hand connected to the outer ends of the tie rods.

Um beim Einziehen der Zuganker in das zweite Tragwerk ein Klemmen der Zuganker zuverlässig zu vermeiden und um nicht eine besondere Gleichlaufregelung der Stelltriebe zu erfordern, sind jeweils zwei einander gegenüberliegend angeordnete Zuganker mittels einer an ihren Enden angelenkten Traverse verbunden und die Stelltriebe etwa parallel zu den Zugankern angeordnet und an den Traversen angelenkt.In order to reliably prevent the tie rods from jamming when the tie rods are pulled into the second structure and not to require a special synchronous control of the actuators, two tie rods arranged opposite each other are connected by means of a crossbar articulated at their ends and the actuators are approximately parallel to the tie rods arranged and hinged to the trusses.

Nach einer weiteren bevorzugten Ausführungsform sind die Stelltriebe zwischen den mit der Traverse verbundenen, einander gegenüberliegenden Zugankern angeordnet. Dies hat den Vorteil, daß das Stütz- und Führungsgerüst besonders schmal gebaut werden kann, wodurch sich beträchtliche Einsparungen, u. zw. vor allem Gewichtseinsparungen bei der das Stütz- und Führungsgerüst umgebenden Kühlkammer ergeben. Auch wird die gesamte Stranggießanlage besser begehbar.According to a further preferred embodiment, the actuators are arranged between the tie rods located opposite one another and connected to the crossbar. This has the advantage that the supporting and guiding scaffold can be made particularly narrow, which results in considerable savings, u. between, above all, weight savings in the cooling chamber surrounding the support and guide frame. The entire continuous caster is also easier to walk on.

Zweckmäßig ist zwischen den Querträgern und den an den Traversen angelenkten Enden der Zuganker eine Entlastungseinrichtung vorgesehen.A relief device is expediently provided between the cross members and the ends of the tie rods articulated on the cross members.

Die Erfindung ist nachfolgend anhand der Zeichnung näher erläutert, wobei die.Fig. 1 eine Ansicht des Stütz- und Führungsgerüstes in Richtung der Stranglängsachse teilweise im Schnitt zeigt. Fig. 2 stellt in analoger Darstellung das Stütz- und Führungsgerüst mit auf minimale Gießdicke eingestellten Rollenbahnen dar. Fig. 3 veranschaulicht ebenfalls in analoger Darstellung dieses Stütz- und Führungsgerüst mit eingezogenen Zugankern. Fig. 4 gibt eine Teilansicht in Richtung des Pfeiles IV der Fig. 1 wieder. In Fig. 5 ist in schematischer Darstellung in verkleinertem Maßstab ein gemäß der Linie V-V der Fig. 1 geführter Schnitt durch ein bogenförmiges Stütz- und Führungsgerüst gezeigt.The invention is explained in more detail with reference to the drawing, the . Fig. 1 shows a view of the support and guide frame in the direction of the longitudinal axis, partly in section. Fig. 2 shows an analog representation of the support and guide frame with roller tracks set to a minimum casting thickness. Fig. 3 also shows an analog representation of this support and guide frame with retracted tie rods. Fig. 4 shows a partial view in the direction of arrow IV of FIG. 1 again. 5 shows a schematic representation on a reduced scale of a section taken along the line VV of FIG. 1 through an arched support and guide frame.

Zwischen den Rollenbahnen 1 und 2 wird der Strang 3 gestützt und geführt. Die Rollen 4 jeder der Rollenbahnen sind mit Halterungen 5 in Lagerböcke 6 eingesetzt, die an Längsträgern 7, 8 befestigt sind. Damit eine allzu große Durchbiegung der langen und verhältnismäßig dünnen Rollen 4 vermieden wird, sind beim dargestellten Ausführungsbeispiel fünf über die Längserstreckung der Rollen verteilt angeordnete Halterungen 5 vorgesehen. Die Längsträger 7 der unteren Rollenbahn sind an Querträgern 9 befestigt und bilden zusammen mit den Querträgern ein erstes Tragwerk 10. Die Längsträger 8 der oberen Rollenbahn sind ebenfalls an Querträgern 11 montiert und bilden zusammen mit diesen ein zweites Tragwerk 12. An den Querträgern 9 des ersten Tragwerkes 10 sind seitlich der Enden der Rollen 4 hohle Streben 13 starr befestigt, die an ihrem oberen Ende einen Flansch 14 aufweisen. Auf diesem Flansch ruht jeweils ein Ende 15 eines Querträgers 11 des zweiten Tragwerkes 12, u. zw. entweder direkt (bei minimalem Abstand der Rollenbahnen, Fig. 2) oder unter Zwischenlage von Beilagscheiben 16 (bei den minimalen Abstand übersteigendem Abstand der Rollenbahnen, Fig. 1). Die Querträger 11 des zweiten Tragwerkes 12 werden an beiden Enden 15 von Zugankern 17 durchsetzt, die mit dem Innenraum 18 der hohlen Streben 13 fluchten und in den Hohlraum eingesetzt werden können. In den Fig. 1 und 2 sind die Zuganker in der die Tragwerke verbindenden Position A dargestellt, bei der die Zuganker in die Streben 13 ragen und an den Streben 13 befestigt sind. Die Befestigung der Zuganker 17 an den Streben erfolgt mittels Einlegestücken 19.The strand 3 is supported and guided between the roller conveyors 1 and 2. The rollers 4 of each of the roller tracks are inserted with brackets 5 in bearing blocks 6, which are fastened to side members 7, 8. In order to avoid excessive deflection of the long and relatively thin rollers 4, five brackets 5 are provided in the embodiment shown, distributed over the longitudinal extent of the rollers. The longitudinal members 7 of the lower roller conveyor are fastened to cross members 9 and, together with the cross members, form a first support structure 10. The longitudinal members 8 of the upper roller conveyor are also mounted on cross members 11 and together with these form a second support assembly 12. On the cross members 9 of the first Support structure 10 are rigidly attached to the sides of the ends of the rollers 4 hollow struts 13 which have a flange 14 at their upper end. One end 15 of a cross member 11 of the second supporting structure 12 rests on this flange, u. between either directly (with a minimum distance between the roller tracks, FIG. 2) or with washers 16 interposed (with a distance between the roller tracks exceeding the minimum distance, FIG. 1). The cross members 11 of the second supporting structure 12 are penetrated at both ends 15 by tie rods 17 which are aligned with the interior 18 of the hollow struts 13 and can be inserted into the cavity. 1 and 2, the tie rods are shown in the position A connecting the structures, in which the tie rods protrude into the struts 13 and are attached to the struts 13. The tie rods 17 are fastened to the struts by means of insert pieces 19.

Die über die Querträger des zweiten Traqwerkes hinausragenden Enden der Zuganker 17 sind jeweils mit einen Bund 20 versehen. Dieser Bund stützt sich über eine Entlastungseinrichtung 21 entweder direkt oder unter Zwischenlage von Beilagscheiben 16 gegen ein Ende 15 des Querträgers 11 des zweiten Tragwerkes 12 ab. Oberhalb des Bundes 20 jedes Zugankers 17 ist an einer ein Gewinde aufweisenden Verlängerung 22 des Zugankers eine Mutter 23 aufgeschraubt, die eine Hülse 24 gegen den Bund 20 spannt. An jeder Hülse 24 sind zwei diametral einander gegenüberliegende Bolzen 25 montiert, an denen Laschen 26 eines Trägers 27 angelenkt sind. Jeder Träger 27 verbindet jeweils zwei Zuganker 17, die an den Enden 15 jeweils eines Querträgers 11 vorgesehen sind. In geringem Abstand 28 von jedem der Zuganker 17 ist ein etwa parallel zu ihm angeordneter Druckmittelzylinder 29 vorgesehen, der einerseits an dem Träger 27 und anderseits an dem Querträger 11 des zweiten Tragwerkes angelenkt ist. Die Druckmittelzylinder 29 (an ihrer Stelle könnte auch eine andere Stelleinrichtung, beispielsweise eine drehbare Spindel etc. vorgesehen sein) liegen jeweils zwischen den Zugankern 17.The ends of the tie rods 17 projecting beyond the cross members of the second traction mechanism are each provided with a collar 20. This federal government is supported by a relief device 21 either directly or with an intermediate layer from washers 16 against one end 15 of the cross member 11 of the second structure 12. Above the collar 20 of each tie rod 17, a nut 23 is screwed onto a threaded extension 22 of the tie rod, which clamps a sleeve 24 against the collar 20. On each sleeve 24, two diametrically opposed bolts 25 are mounted, on which tabs 26 of a carrier 27 are articulated. Each carrier 27 connects two tie rods 17, which are provided at the ends 15 of a cross member 11. At a short distance 28 from each of the tie rods 17, an approximately parallel pressure medium cylinder 29 is provided, which is articulated on the one hand on the support 27 and on the other hand on the cross member 11 of the second supporting structure. The pressure medium cylinders 29 (another actuating device, for example a rotatable spindle etc. could be provided in their place) are each located between the tie rods 17.

Die Entlastungseinrichtung 21 weist zwei Büchsen 30, 31 auf, die mit einander entsprechenden schraubenförmigen Gleitflächen einen Gewindegang bilden. Eine der Büchsen 30, 31 ist gegenüber der anderen Büchse verdrehbar, u. zw. mit Hilfe eines jeweils an einer der beiden Büchsen, die an einander gegenüberliegenden Zugankern 17 angeordnet sind, angelenkten Druckmittelzylinders 32, wodurch die Distanz der äußeren Auflageflächen 33, 34 der Büchsen 30, 31 zwischen Querträger 11 und Bund 20 des jeweiligen Zugankers 17 verändert werden kann. Mittels dieser Büchsen 30,31 ist es somit möglich, einen Querträger 11 des zweiten Tragwerkes 12 gegen die Streben 13 und somit gegen das erste Tragwerk 10 (bei eingelegtem Einlagestück 19) zu spannen bzw. die Fixierung der beiden Tragwerke 10, 12 zu lösen. Anstelle der Büchsen 30, 31 könnten auch die Zuganker durchsetzende Keile vorgesehen sein.The relief device 21 has two bushes 30, 31 which form a thread with corresponding helical sliding surfaces. One of the sleeves 30, 31 is rotatable relative to the other sleeve, u. between by means of a pressure medium cylinder 32 articulated on one of the two bushes, which are arranged on mutually opposite tie rods 17, whereby the distance of the outer bearing surfaces 33, 34 of the sleeves 30, 31 between cross member 11 and collar 20 of the respective tie rod 17 changes can be. By means of these bushes 30, 31 it is thus possible to clamp a cross member 11 of the second supporting structure 12 against the struts 13 and thus against the first supporting structure 10 (with an insert 19 inserted) or to loosen the fixation of the two supporting structures 10, 12. Instead of the bushes 30, 31, wedges penetrating the tie rods could also be provided.

Die Funktion des Stützgerüstes ist folgende: Soll der Abstand der Rollenbahnen 1, 2 geändert werden, wird zunächst die Entlastungseinrichtung 21 betätigt, d.h. die Fixierung der Tragwerke gelöst, worauf mittels der Druckmittelzylinder 29 das zweite Tragwerk in einer Position gehalten wird, die es ermöglicht, die Beilagscheiben 16 auszutauschen. Nach Ausbau der Beilagscheiben 16 wird das zweite Tragwerk 12 mittels der Druckmittelzylinder 29 in die gewünschte neue Lage verschoben. Sodann werden oberhalb bzw. unterhalb der Querträger 11 des zweiten Tragwerkes 12 (je nach neuer Lage des zweiten Tragwerkes 12) entsprechende BeilaJScheiben 16 eingesetzt, worauf mittels der Entlastungseinrichtung 21 wieder eine Verspannung des zweiten Tragwerkes gegen das erste Tragwerk hergestellt wird.The function of the support structure is as follows: If the distance between the roller tracks 1, 2 is to be changed, the relief device 21 is first actuated, that is to say the fixing of the supporting structures is released, whereupon the second supporting structure is held in a position by means of the pressure medium cylinders 29, which enables replace the washers 16. After the washers 16 have been removed, the second supporting structure 12 is moved into the desired new position by means of the pressure medium cylinders 29. Corresponding Beila J disks 16 are then used above or below the cross members 11 of the second supporting structure 12 (depending on the new position of the second supporting structure 12), whereupon the relief device 21 again braces the second supporting structure against the first supporting structure.

Zum Zweck des Auseinandernehmens der Tragwerke 10, 12 werden nach Lösen der Verspannung mittels der Entlastungseinrichtung 21 die Einlegestücke 19, die die Zuganker 17 mit den Streben 13 des ersten Tragwerkes 10 verbinden, entfernt, worauf die Druckmittelzylinder 29 beaufschlagt werden und die Zuganker, wie in Fig. 3 dargestellt, die Rückzugsposition B einnehmen. Sodann kann das zweite Tragwerk 12 vom ersten 10 mit Hilfe eines Hallenkranes abgehoben werden. Beim Zurückziehen der Zuganker 17 in die Rückzugsposition B wird durch die Traverse 27 ein Klemmen der Zuganker 17 innerhalb der Streben 13 bzw. innerhalb der Querträger 11 des zweiten Tragwerkes 12 vermieden.For the purpose of disassembling the structures 10, 12, after releasing the tension by means of the relief device 21, the insert pieces 19, which connect the tie rods 17 to the struts 13 of the first structure 10, are removed, whereupon the pressure medium cylinders 29 and the tie rods, as in FIG Fig. 3 shown, occupy the retreat position B. The second supporting structure 12 can then be lifted off the first 10 with the aid of an indoor crane. When the tie rods 17 are retracted into the retracted position B, the traverse 27 prevents the tie rods 17 from jamming within the struts 13 or within the cross members 11 of the second supporting structure 12.

Ein besonderer Vorteil des erfindungsgemäßen Stütz-und Führungsgerüstes ist darin zu sehen, daß jeder der Druckmittelzylinder 29 zwei Funktionen übernimmt, nämlich erstens das Heben und Senken des zweiten Tragwerkes 12 gegenüber dem ersten 10 zum Zweck der Abstandänderung der Rollenbahnen 1, 2 und zweitens das Einziehen der Zuganker 17 in die Rückzugsposition B. Dadurch ergibt sich eine erhebliche Kosteneinsparung und ein wesentlich geringerer Aufwand bei der Demontage des zweiten Tragwerkes, da ein Lösen der Druckmittelzylinder (vom ersten Tragwerk 10) nicht erforderlich ist; es müssen lediglich die Einlegestücke 19 entfernt werden. Bei der Montage des zweiten Tragwerkes am ersten erspart man sich ebenfalls Manipulationen an den Druckmittelzylindern.A particular advantage of the support and guide frame according to the invention can be seen in the fact that each of the pressure medium cylinders 29 performs two functions, namely firstly lifting and lowering the second supporting structure 12 compared to the first 10 for the purpose of changing the distance of the roller conveyors 1, 2 and secondly that Retracting the tie rods 17 into the retracted position B. This results in considerable cost savings and considerably less effort when disassembling the second supporting structure, since it is not necessary to release the pressure medium cylinders (from the first supporting structure 10); only the inserts 19 have to be removed. When the second supporting structure is installed on the first one, there is also no need to manipulate the pressure medium cylinders.

Das erfindungsgemäße Stütz- und Führungsgerüst eignet sich sowohl für gerade Rollenbahnen als auch für bogenförmige Rollenbahnen. Bei bogenförmigen Rollenbahnen (Fig. 5) sind die bogenförmigen Längsträger 8' des zweiten Tragwerkes 12 an den Querträgern 11 mittels eine Längsverschiebung der Längsträger 8' gegenüber den Querträgern 11 zulassenden Gleitsteinen 35 befestigt, wie dies bei dem aus der AT-PS 343 303 bekannten Stütz- und Führungsbogen verwirklicht ist.The support and guide frame according to the invention is suitable both for straight roller conveyors and for curved roller conveyors. In the case of arcuate roller conveyors (FIG. 5), the arcuate longitudinal members 8 'of the second supporting structure 12 are fastened to the cross members 11 by means of a longitudinal displacement of the longitudinal members 8' relative to the cross members 11, as is the case with the sliding blocks 35 known from AT-PS 343 303 Support and guide arch is realized.

Claims (5)

1. Stütz- und Führungsgerüst für Stranggießanlagen, insbesondere für Brammenstranggießanlagen, mit den Strang (3) an zwei gegenüberliegenden Seiten stützenden Rollenbahnen (1, 2), wobei eine der beiden Rollenbahnen (2) an einem ersten Tragwerk (10) und die andere Rollenbahn (1) an einem zweiten Tragwerk (12) angeordnet sind, welches gegen das erste Tragwerk (10) mittels einer Anzahl von Zugankern (17) spann- bzw. mit dem ersten Tragwerk (10)verbindbar ist, und wobei Stelltriebe (29) zur Verstellung des zweiten Tragwerkes (12) gegenüber dem ersten Tragwerk (10) vorgesehen sind, dadurch gekennzeichnet, daß die Stelltriebe (29) einerseits mit dem zweiten Tragwerk (12) und anderseits mit den Zugankern (17) verbunden sind, derart, daß die Zuganker (17) an dem ersten Tragwerk (10) lösbar befestigt sind und nach Lösen der Verbindungsmittel (19) aus der die Tragwerke verbindenden Position (A) mittels der Stelltriebe (29) aus dem ersten Tragwerk (10) entfernbar und in eine Rückzugsposition (B) in das zweite Tragwerk (12) einziehbar sind.1. Support and guide frame for continuous casting plants, in particular for continuous slab casting plants, with the strand (3) on two opposite side supporting roller conveyors (1, 2), one of the two roller conveyors (2) on a first supporting structure (10) and the other roller conveyor (1) are arranged on a second supporting structure (12) which can be tensioned against the first supporting structure (10) by means of a number of tie rods (17) or connected to the first supporting structure (10), and wherein actuating drives (29) are used Adjustment of the second supporting structure (12) relative to the first supporting structure (10) is provided, characterized in that the actuators (29) are connected on the one hand to the second supporting structure (12) and on the other hand to the tie rods (17) in such a way that the tie rods (17) are detachably fastened to the first supporting structure (10) and after releasing the connecting means (19) from the position (A) connecting the supporting structures can be removed from the first supporting structure (10) by means of the actuators (29) and into a retracted position (B ) are retractable into the second supporting structure (12). 2. Gerüst nach Anspruch 1, wobei jedes der beiden Tragwerke aus Querträgern und an diesen montierten, sich über die gesamte Länge des Gerüstes erstreckenden, die Rollen tragenden Längsträgern gebildet ist und wobei die Zuganker einander gegenüberliegende Querträger der beiden Tragwerke miteinander verbinden und an den Enden der einander gegenüberliegenden Querträger angeordnet sind, dadurch gekennzeichnet, daß die Zuganker (17) mit den Querträgern (9) des ersten.Tragwerkes (10) lösbar verbunden sind und die Stelltriebe (29) einerseits an den Querträgern (11) des zweiten Tragwerkes (12) befestigt sind und anderseits mit den äußeren Enden (22) der Zuganker (17) verbunden sind.2. Scaffolding according to claim 1, wherein each of the two structures from cross members and mounted on these, extending over the entire length of the frame, the role-carrying longitudinal members is formed and wherein the tie rods connect mutually opposite cross members of the two structures and at the ends of the mutually opposite cross members, characterized in that the tie rods (17) are detachably connected to the cross members (9) of the first supporting structure (10) and the actuators (29) on the one hand on the cross members (11) of the second supporting structure (12 ) are attached and on the other hand are connected to the outer ends (22) of the tie rods (17). 3. Gerüst nach Anspruch 2, dadurch gekennzeichnet, daß jeweils zwei einander gegenüberliegend angeordnete Zuganker (17) mittels einer an ihren Enden (22) angelenkten Traverse (27) verbunden sind und daß die Stelltriebe (29) etwa parallel zu den Zugankern (17) angeordnet sind und an den Traversen (27) angelenkt sind.3. Scaffold according to claim 2, characterized in that two mutually opposite tie rods (17) are connected by means of a cross member (27) articulated at their ends (22) and that the actuators (29) are approximately parallel to the tie rods (17). are arranged and are articulated on the trusses (27). 4. Gerüst nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Stelltriebe (29) zwischen den mit der Traverse (27) verbundenen, einander gegenüberliegenden Zugankern (17) angeordnet sind.4. Scaffolding according to claim 2 or 3, characterized in that the actuators (29) are arranged between the tie rods (17) connected to one another and connected to the crossmember (27). 5. Gerüst nach den Ansprüchen 3 und 4, dadurch gekennzeichnet, daß zwischen den Querträgern (11) und den an den Traversen (27) angelenkten Enden (22) der Zuganker (17) eine Entlastungseinrichtung (21) vorgesehen ist.5. Scaffolding according to claims 3 and 4, characterized in that a relief device (21) is provided between the cross members (11) and the ends (22) of the tie rods (17) articulated on the cross members (27).
EP80890060A 1979-06-28 1980-06-02 Supporting and guiding frame for continuous casting plants Expired EP0022121B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT4511/79 1979-06-28
AT451179A AT361649B (en) 1979-06-28 1979-06-28 SUPPORT AND LEADERSHIP FOR CONTINUOUS CASTING PLANTS

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EP0022121A1 true EP0022121A1 (en) 1981-01-07
EP0022121B1 EP0022121B1 (en) 1983-02-23

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EP80890060A Expired EP0022121B1 (en) 1979-06-28 1980-06-02 Supporting and guiding frame for continuous casting plants

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US (1) US4362206A (en)
EP (1) EP0022121B1 (en)
JP (1) JPS566766A (en)
AT (1) AT361649B (en)
BR (1) BR8004039A (en)
CA (1) CA1146322A (en)
DE (1) DE3062119D1 (en)
ES (1) ES492231A0 (en)

Cited By (3)

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EP0076248A1 (en) * 1981-09-17 1983-04-06 VOEST-ALPINE Aktiengesellschaft Supporting and guiding arc for cast strands
CN102039388A (en) * 2011-01-20 2011-05-04 中冶赛迪工程技术股份有限公司 Casting guiding device
CN109926554A (en) * 2017-12-19 2019-06-25 宝钢工程技术集团有限公司 A kind of fan-shaped section and its application method of improvement and elimination slab internal defect

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JPH0546541Y2 (en) * 1987-10-31 1993-12-06
US5115857A (en) * 1990-07-18 1992-05-26 Voest-Alpine Industrieanlagenbau G.M.B.H. Strand guide arrangement provided at a continuous casting plant
FR2751249B1 (en) * 1996-07-17 1998-09-04 Pont A Mousson DEVICE FOR POSITIONING A DIE BLOCK OF A CASTING TABLE OF AN ASCENDING VERTICAL CONTINUOUS CASTING MACHINE
CH696521A5 (en) * 2003-08-13 2007-07-31 Main Man Inspiration Ag Method of extending the casting cycle in two-roll strip casting and system for performing the method.

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DE2021780B2 (en) * 1969-05-30 1975-01-30 Vereinigte Oesterreichische Eisenund Stahlwerke-Alpine Montan Ag, Wien Method for adapting the arching of a strand emerging from a continuous casting mold
CH595164A5 (en) * 1975-10-16 1978-01-31 Voest Ag

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AT335649B (en) * 1975-03-25 1977-03-25 Voest Ag STRAND GUIDE ON A CONTINUOUS CASTING PLANT
AT335650B (en) * 1975-05-13 1977-03-25 Voest Ag FOR CONTINUOUS CASTING PLANTS
AT337386B (en) * 1975-09-03 1977-06-27 Voest Ag ROLLER FRAME FOR CONTINUOUS CASTING PLANTS
AT343303B (en) * 1975-10-01 1978-05-26 Voest Ag SUPPORT BEND AND GUIDE BEND FOR CAST ROD, IN PARTICULAR FOR CAST ROD
AT340082B (en) * 1975-10-29 1977-11-25 Voest Ag STRAND GUIDE ON A CONTINUOUS CASTING PLANT
AT338984B (en) * 1975-11-12 1977-09-26 Voest Ag SUPPORT AND GUIDE FRAMEWORK, IN PARTICULAR SUPPORT AND GUIDE BOWS FOR CAST BRANDS

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US3596706A (en) * 1967-12-27 1971-08-03 Boehler & Co Ag Geb Track supporting roller guide means for casting tracks in casting installations and more particularly in curved casting installations
DE2021780B2 (en) * 1969-05-30 1975-01-30 Vereinigte Oesterreichische Eisenund Stahlwerke-Alpine Montan Ag, Wien Method for adapting the arching of a strand emerging from a continuous casting mold
CH595164A5 (en) * 1975-10-16 1978-01-31 Voest Ag
AT341698B (en) * 1975-10-16 1978-02-27 Voest Ag SUPPORT BEND AND GUIDE BEND FOR CAST ROD, IN PARTICULAR FOR CAST ROD

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0076248A1 (en) * 1981-09-17 1983-04-06 VOEST-ALPINE Aktiengesellschaft Supporting and guiding arc for cast strands
CN102039388A (en) * 2011-01-20 2011-05-04 中冶赛迪工程技术股份有限公司 Casting guiding device
CN109926554A (en) * 2017-12-19 2019-06-25 宝钢工程技术集团有限公司 A kind of fan-shaped section and its application method of improvement and elimination slab internal defect

Also Published As

Publication number Publication date
JPS566766A (en) 1981-01-23
BR8004039A (en) 1981-01-21
ES8101428A1 (en) 1980-12-16
CA1146322A (en) 1983-05-17
ES492231A0 (en) 1980-12-16
AT361649B (en) 1981-03-25
ATA451179A (en) 1980-08-15
US4362206A (en) 1982-12-07
EP0022121B1 (en) 1983-02-23
JPS5649659B2 (en) 1981-11-24
DE3062119D1 (en) 1983-03-31

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