EP0027105A1 - Curved continuous casting plant - Google Patents

Curved continuous casting plant Download PDF

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Publication number
EP0027105A1
EP0027105A1 EP80890096A EP80890096A EP0027105A1 EP 0027105 A1 EP0027105 A1 EP 0027105A1 EP 80890096 A EP80890096 A EP 80890096A EP 80890096 A EP80890096 A EP 80890096A EP 0027105 A1 EP0027105 A1 EP 0027105A1
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EP
European Patent Office
Prior art keywords
roller
bending device
arch
bending
distance
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Granted
Application number
EP80890096A
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German (de)
French (fr)
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EP0027105B1 (en
Inventor
Aktiengesellschaf Voest-Alpine
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Voestalpine AG
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Voestalpine AG
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Publication of EP0027105A1 publication Critical patent/EP0027105A1/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
    • 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
    • B22D11/1285—Segment changing devices for supporting or guiding frames

Definitions

  • the invention relates to a continuous sheet caster with a strand bending device arranged below the mold and a subsequent circular arc guide, which has opposing support roller tracks, the bending device having two opposing arch frame parts, each supporting bending or supporting rollers, which are supported on one another and wherein the distance between the support roller tracks of the circular arc guide can be changed in accordance with a strand cross section to be set.
  • the distance between the roller conveyors lying opposite one another is usually carried out by displacing one of the roller conveyors in parallel. If, for example, the adjoining roller tracks of the bending zone and the circular arc guide lying on the inside of the arc are displaced inward, ie towards the center of curvature, in order to increase the strand thickness, the rollers arranged at the ends of these roller tracks directed towards each other approach. In order to prevent these rollers from bumping into each other, it is necessary - with roller conveyors set to the smallest thickness - to have a disproportionately large roller spacing between the adjacent end rollers the bending device and the circular arc guide.
  • the invention aims at avoiding these disadvantages and difficulties and has as its object an arc. to create continuous casting machine of the type described in the introduction, in which an adjustment of the distance between the opposing roller conveyors is possible in such a simple manner that the distance between the end rollers of adjacent roller conveyors of the bending device and the circular arc guide remains approximately the same.
  • This object is achieved in that one of the arch frame parts of the bending device releasably attached to it, interchangeable, adapted to different strand cross-sectional formats with their dimensions, in particular their length, adapted.
  • An expedient embodiment is characterized in that the roller carriers are fastened to an inner part of the arch structure of the bending device.
  • the distance between the opposing bending or supporting rollers of the bending device can advantageously be changed by exchanging the roller carriers adapted to their thickness with different strand cross-sectional formats.
  • a casting thickness adjustment is particularly easy to carry out, since no adjustment manipulations have to be carried out on the bending device.
  • the roller spacing is set solely by exchanging the roller carriers. It is only necessary to loosen or attach the roller supports to the bending device. This also saves measurement work on the roller tracks of the bending device.
  • the inner part of the arch structure is fastened to the outer part of the arch structure by means of bolts, along which one of the parts of the arch structure is slidably guided and on which this part is supported by means of washers against the second part of the arch structure.
  • the roller carriers are formed in one piece over the length of the bending device, as a result of which the roller carriers can be installed and removed particularly quickly.
  • roller carriers are expediently supported against the arch frame parts by means of interchangeable inserts.
  • roller carriers For easy handling of the roller carriers, they are common to one another in a system with two or more supported bending or supporting rollers - with a sheet longitudinal carrier being provided at each supporting point sam installable and removable unit connected.
  • FIG. 1 shows a view of a bending device from above in the direction of the longitudinal axis of the strand
  • FIG. 2 shows a section along the line II-II of FIG. 1
  • FIG. 3 shows a section along the line III-III, also of Fig. 1, represent.
  • FIG. 4 shows, in a representation analogous to FIG. 3, a system set to the greatest possible casting thickness.
  • FIG. 5 illustrates a further embodiment of the system according to the invention in a representation analogous to FIG. 3.
  • a short, vertically directed guide section 1 for the strand is arranged below a continuous mold, not shown, to which the bending device 2 connects.
  • a circular arc guide 3 is provided below the bending device, in which the strand is guided from an almost vertical direction to an almost horizontal direction.
  • the bending device 2 which is suspended from a stationary support frame 4 by means of a nose-shaped hook 5 provided at the upper end of the bending device and which is supported at its lower end against this support frame 4 by means of a support 6, is composed of two box-shaped parts of the frame lying opposite one another 7, 8 built.
  • guide bolts 14 are arranged on the sides of the ends of the rollers 10, on which the arch frame inner part 8, which carries the bending or support rollers 10 forming the inner roller conveyor 15, is slidably guided.
  • pull bolts 16 are provided to the side of the ends of the rollers, which are fastened with their heads 17 to the inner bow frame part 8 and which are supported with their other end 18 with interposed washers 19 on the bow frame outer part 7 and each with a cap nut 20 are secured.
  • the distance between the inner part of the arch frame 8 from the outer part 7 of the arch frame and thus the distance between the roller track 15 on the inside of the bow and the roller track 9 on the outside of the bow of the bending device 2 can be changed by rearranging the washers 19.
  • the bending or support rollers 10 of the roller track 15 on the inside of the arch are not directly attached to the frame part as in the case of the outer frame part 7, but rather are attached to roller supports 21, 22 that extend in one piece over the length of the bending device 2, each with a crosshead 12 with a tension screw 13 two bearing blocks 11 adjacent rollers 10 against the roller carrier 21, 22 spans.
  • the rollers 10 are formed in three parts, the rollers of the roller conveyor 15 being supported at each division point and at their ends on a roller carrier 21, 22 in each case.
  • the roller carriers 21 and 22 are fastened to the inner part of the arch frame by means of bolts 23 and nuts 24. All roller carriers 21, 22 are combined into a structural unit by means of bolts 25, on which spacer sleeves 26 are pushed.
  • the roller supports furthermore have approximately vertically directed support surfaces 27 and in each case a horizontal support surface 28 with which they are supported against transverse supports 29 arranged on the inner part of the arch structure 8 with the interposition of inserts 30 which are fastened to the roller supports 21, 22.
  • the circular arc guide 3 adjoining the bending device 2 has, in order to support the outside of the roller conveyor 32 formed from supporting rollers 31, longitudinal members 33 which are connected to longitudinal members 34 arranged on the inside of the arc, which support the supporting rollers 31 of the inside roller conveyor 35, by means of tie rods (not shown).
  • the upper end roller of the circular arc guide, designated 38 comes from which in FIGS. 2 and 3 means full Position shown in solid lines in the position shown in dash-dotted lines in FIGS. 2 and 3, which is shifted from the fully extended position in the direction of a line 39 inclined at approximately 45 ° to the horizontal.
  • the inclination for this direction of displacement is about 45 0 because the circular arc extends approximately from the vertical to almost horizontal and the longitudinal deviation, which is designated in FIGS. 2 and 3 with 40, ie the deviation in the longitudinal direction of the Roller tracks, should be approximately the same at both ends of the circular arc guide.
  • the direction of displacement 41 of the inner part of the arch structure relative to the outer part of the arch structure is also inclined at a certain angle 42 to the horizontal.
  • the lower end roller 43 of the inner arch part 8 would come into contact with the upper end roller 38 of the circular arch guide 3 when the inner arch part 8 of the bending device 2 was moved to the greatest possible distance 37; the shift is then hindered.
  • the roller carriers 21, 22, which have a length 44 at the narrowest set distance 36 are against roller carriers 21 ', 22 'with a shortened length 45. This is done by loosening the nuts 24 of the bolts 23, lifting out the roller carriers 21, 22 and inserting the new roller carriers 21 ', 22' and then tightening the nuts 24 (cf. FIG. 4).
  • the area between the smallest 36 and the largest 37 distance of the roller tracks is expediently divided into several partial areas, with separate roller carriers 21, 22; 21 ', 22' etc. are provided.
  • the roller supports provided for this sub-area can be used for any other spacing of the roller tracks 9, 15, since an approximation or removal of the end rollers 38, 43 of the inner part 8 of the arch frame and the circular arc guide 3 is permissible to a certain extent.
  • the inner part of the arch frame is fixed to the outer part of the arch frame by means of two connecting bolts 46.
  • the roller carriers 21, 22 are also exchanged, although these not only have a different length 44 or 45, but also a different thickness 47 that determines the roller spacing, ie it differs also the distance of the approximately vertically directed support surfaces 27 of the roller carriers 21, 22 to the support surfaces 48 of the bearing blocks 11.
  • the conversion of the system from one strand thickness to another is particularly simple since the inner part of the arch frame 8 is not compared to the outer part 7 of the arch frame needs to be moved. It will be there reduced by the number of manipulations to be carried out on the bending device 2.
  • the area between the smallest 36 and the largest 37 distance of the roller tracks 9 and 15 is also divided into partial areas, with roller carriers having a certain length and thickness being provided for each partial area.
  • the roller conveyor distance can be varied by exchanging the inserts 30 provided between the approximately vertical support surfaces 27 and the cross members 29.
  • roller tracks 9, 32 on the outside of the arc are arranged rigidly, i.e. they are not adjusted when a roll gap corresponding to the strand thickness is set.
  • the roller tracks 15, 35 on the inside of the arc could also be immovable and the roller tracks on the outside of the arc could be set to a desired strand thickness.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Metal Rolling (AREA)

Abstract

Bei einer Bogenstranggießanlage mit einer unterhalb der Kokille angeordneten Strang-Biegeeinrichtung (2) und einer daran anschließenden, einander gegenüberliegende Stützrollenbahnen (32, 35) aufweisenden Strang-Kreisbogenführung (3) weist die Biegeeinrichtung (2) zwei einander gegenüberliegende, jeweils Biege- bzw. Stützrollen (10) tragende Bogengerüstteile (7, 8) auf, die aneinander abgestützt sind. Der Abstand der Stützrollenbahnen (32, 35) der Kreisbogenführung ist dabei entsprechend einem einzustellenden Strangquerschnitt veränderbar. Um bei einer Verstellung des Abstandes der einander gegenüberliegenden Rollenbahnen eine Behinderung durch die Endrollen (38, 43) benachbarten Rollenbahnen (15, 35) der Biegeeinrichtung (2) und der Kreisbogenführung (3) zu verhindern und um den Abstand der Endrollen (38, 43) dieser Rollenbahnen (15, 35) etwa gleich zu halten, weist einer der Bogengerüstteile (8) der Biegeeinrichtung (2) an ihm lösbar befestigte, austauschbare, auf unterschiedliche Strangquerschnittsformate (36) mit ihren Abmessungen, insbesondere ihrer Länge (44), angepaßte Rollenträger (21, 22) auf.In a continuous sheet casting installation with a strand bending device (2) arranged underneath the mold and a subsequent circular arc guide (3) having opposing support roller tracks (32, 35), the bending device (2) has two mutually opposite, respectively bending or Supporting roles (10) supporting arch frame parts (7, 8) which are supported on each other. The distance between the support roller tracks (32, 35) of the circular arc guide can be changed in accordance with a strand cross section to be set. In order to prevent a hindrance by the end rollers (38, 43) adjacent roller conveyors (15, 35) of the bending device (2) and the circular arc guide (3) when the distance between the opposite roller conveyors is adjusted, and to prevent the end rollers (38, 43 ) to keep these roller tracks (15, 35) approximately the same, one of the arch frame parts (8) of the bending device (2) releasably attached to it, replaceable, adapted to different strand cross-sectional formats (36) with their dimensions, in particular their length (44) Roller carrier (21, 22).

Description

Die Erfindung betrifft eine Bogenstranggießanlage mit einer unterhalb der Kokille angeordneten Strang-Biegeeinrichtung und einer daran anschließenden, einander gegenüberliegende Stützrollenbahnen aufweisenden Strang-Kreisbogenführung, wobei die Biegeeinrichtung zwei einander gegenüberliegende, jeweils Biege- bzw. Stützrollen tragende Bogengerüstteile aufweist, die aneinander abgestützt sind und wobei der Abstand der Stützrollenbahnen der Kreisbogenführung entsprechend einem einzustellenden Strangquerschnitt veränderbar ist.The invention relates to a continuous sheet caster with a strand bending device arranged below the mold and a subsequent circular arc guide, which has opposing support roller tracks, the bending device having two opposing arch frame parts, each supporting bending or supporting rollers, which are supported on one another and wherein the distance between the support roller tracks of the circular arc guide can be changed in accordance with a strand cross section to be set.

Bei einer Stranggießanlage dieser Art wird das Einstellen des Abstandes der einander gegenüberliegenden Rollenbahnen üblicherweise durch Parallelverschieben einer der Rollenbahnen durchgeführt. Werden beispielsweise die an der Bogeninnenseite liegenden, aneinander anschließenden Rollenbahnen der Biegezone und der Kreisbogenführung zwecks Vergrößerung der Strangdicke nach innen, d.h. zum Krümmungsmittelpunkt hin verschoben, so nähern sich die an den zueinander gerichteten Enden dieserRollenbahnen angeordneten Rollen. Um ein Aneinanderstoßen dieser Rollen zu vermeiden, ist es erforderlich, - bei auf kleinster Dicke eingestellten Rollenbahnen - einen unverhältnismäßig großen Rollenabstand zwischen den benachbarten Endrollen der Biegeeinrichtung und der Kreisbogenführung vorzusehen. Will man dies wegen unzulässiger Ausbauchung der Strangschale nicht in Kauf nehmen, so ist man gezwungen, zusätzlich zum Parallelverschieben der beiden aneinander anschließenden Rollenbahnen, eine dieser Rollenbahnen zusätzlich in Achsrichtung der Strangführungsbahn zu verstellen, so daß der Abstand der nebeneinander liegenden Endrollen dieser Rollenbahnen auch für unterschiedliche Strangdickenetwa gleich groß bleibt. Dies ist sehr umständlich durchzuführen und bedingt eigens für diesen Zweck vorgesehene Bauelemente, die die Anlage verteuern, das Umrüsten komplizieren und die eine zusätzliche Fehlerquelle der Stranggießanlage darstellen. Insbesondere bei einem großen Verstellbereich, wie er bei modernen Brammenstranggießanlagen gefordert ist und bei einstückig ausgebildeten Kreisbogenführungen - diese erstrecken sich beinahe über einen Viertelkreis -, kommen die oben genannten Schwierigkeiten besonders zum Tragen.In a continuous caster of this type, the distance between the roller conveyors lying opposite one another is usually carried out by displacing one of the roller conveyors in parallel. If, for example, the adjoining roller tracks of the bending zone and the circular arc guide lying on the inside of the arc are displaced inward, ie towards the center of curvature, in order to increase the strand thickness, the rollers arranged at the ends of these roller tracks directed towards each other approach. In order to prevent these rollers from bumping into each other, it is necessary - with roller conveyors set to the smallest thickness - to have a disproportionately large roller spacing between the adjacent end rollers the bending device and the circular arc guide. If you do not want to accept this because of inadmissible bulging of the strand shell, you are forced to adjust one of these roller conveyors in addition to the parallel displacement of the two adjacent roller conveyors in the axial direction of the strand guide path, so that the distance between the adjacent end rollers of these roller conveyors also for different strand thicknesses remains approximately the same size. This is very cumbersome to carry out and requires components specially designed for this purpose, which make the system more expensive, complicate the changeover and represent an additional source of error for the continuous casting system. In particular with a large adjustment range, as is required in modern continuous slab caster and with one-piece circular arc guides - these extend almost over a quarter circle - the above-mentioned difficulties are particularly significant.

Die Erfindung bezweckt die Vermeidung dieser Nachteile und Schwierigkeiten und stellt sich die Aufgabe, eine Bogen-. stranggießanlage der eingangs beschriebenen Art zu schaffen, bei der eine Verstellung des Abstandes der einander gegenüberliegenden Rollenbahnen in einfacher Weise derart möglich ist, daß der Abstand der Endrollen benachbarter Rollenbahnen der Biegeeinrichtung und der Kreisbogenführung etwa gleich bleibt.The invention aims at avoiding these disadvantages and difficulties and has as its object an arc. to create continuous casting machine of the type described in the introduction, in which an adjustment of the distance between the opposing roller conveyors is possible in such a simple manner that the distance between the end rollers of adjacent roller conveyors of the bending device and the circular arc guide remains approximately the same.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß einer der Bogengerüstteile der Biegeeinrichtung an ihm lösbar befestigte, austauschbare, auf unterschiedliche Strangquerschnittsformate mit ihren Abmessungen, insbesondere ihrer Länge, angepaßte Rollenträger aufweist.This object is achieved in that one of the arch frame parts of the bending device releasably attached to it, interchangeable, adapted to different strand cross-sectional formats with their dimensions, in particular their length, adapted.

Eine zweckmäßige Ausführungsform ist dadurch gekennzeichnet, daß die Rollenträger an einem Bogengerüstinnenteil der Biegeeinrichtung befestigt sind.An expedient embodiment is characterized in that the roller carriers are fastened to an inner part of the arch structure of the bending device.

Vorteilhaft ist der Abstand der einander gegenüberliegenden Biege- bzw. Stützrollen der Biegeeinrichtung durch Austausch der auf unterschiedliche Strangquerschnittsformate mit ihrer Dicke angepaßten Rollenträger veränderbar. In diesem Fall ist eine Gießdickenverstellung besonders einfach durchzuführen, da an der Biegeeinrichtung keinerlei Verstellmanipulationen durchgeführt werden müssen. Die Einstellung des Rollenabstandes geschieht alleine durch Austausch der Rollenträger. Es ist lediglich erforderlich, die Rollenträger an der Biegeeinrichtung zu lösen bzw. zu befestigen. Dadurch erspart man sich auch Meßarbeiten an den Rollenbahnen der Biegeeinrichtung.The distance between the opposing bending or supporting rollers of the bending device can advantageously be changed by exchanging the roller carriers adapted to their thickness with different strand cross-sectional formats. In this case, a casting thickness adjustment is particularly easy to carry out, since no adjustment manipulations have to be carried out on the bending device. The roller spacing is set solely by exchanging the roller carriers. It is only necessary to loosen or attach the roller supports to the bending device. This also saves measurement work on the roller tracks of the bending device.

Es ist jedoch auch möglich und in manchen Fällen zweckmäßig, den Abstand zwischen Bogengerüstinnenteil und einem Bogengerüstaußenteil der Biegeeinrichtung durch Parallelverschieben eines der Bogengerüstteile zu verändern.However, it is also possible and in some cases expedient to change the distance between the inner part of the arch framework and an outer part of the arch framework by parallel displacement of one of the arch framework parts.

Dabei ist zweckmäßig, daß der Bogengerüstinnenteil am Bogengerüstaußenteil mittels Bolzen befestigt ist, entlang denen einer der Bogengerüstteile verschiebbar geführt ist und an denen dieser Teil mittels Beilagscheiben gegen den zweiten Bogengerüstteil abgestützt ist.It is expedient that the inner part of the arch structure is fastened to the outer part of the arch structure by means of bolts, along which one of the parts of the arch structure is slidably guided and on which this part is supported by means of washers against the second part of the arch structure.

Nach einer bevorzugten Ausführungsform sind die Rollenträger über die Länge der Biegeeinrichtung einstückig ausgebildet, wodurch der Ein- und Ausbau der Rollenträger besonders schnell vor sich geht.According to a preferred embodiment, the roller carriers are formed in one piece over the length of the bending device, as a result of which the roller carriers can be installed and removed particularly quickly.

Zur genauen Einstellung und Justierung der Rollenträger sind zweckmäßig die Rollenträger gegen die Bogengerüstteile mittels austauschbarer Beilagen abgestützt.For precise adjustment and adjustment of the roller carriers, the roller carriers are expediently supported against the arch frame parts by means of interchangeable inserts.

Zur einfachen Handhabung der Rollenträger sind diese bei einer Anlage mit zwei-oder mehrfach abgestützten Biege- bzw. Stützrollen - wobei an jeder Stützstelle ein Bogenlängsträger vorgesehen ist - miteinander zu einer gemeinsam ein- und ausbaubaren Baueinheit verbunden.For easy handling of the roller carriers, they are common to one another in a system with two or more supported bending or supporting rollers - with a sheet longitudinal carrier being provided at each supporting point sam installable and removable unit connected.

Die Erfindung ist nachfolgend anhand der schematischen Zeichnung näher erläutert, wobei Fig. 1 eine Ansicht einer Biegeeinrichtung von oben in Richtung der Stranglängsachse, Fig. 2 einen Schnitt gemäß der Linie II-II der Fig. 1 und Fig. 3 einen Schnitt gemäß der Linie III-III, ebenfalls der Fig. 1, darstellen. Fig. 4 zeigt in zu Fig. 3 analoger Darstellung eine auf die größtmögliche Gießdicke eingestellte Anlage. In Fig. 5 ist eine weitere Ausführungsform der erfindungsgemäßen Anlage in zu Fig. 3 analoger Darstellung veranschaulicht.The invention is explained in more detail below with reference to the schematic drawing, wherein FIG. 1 shows a view of a bending device from above in the direction of the longitudinal axis of the strand, FIG. 2 shows a section along the line II-II of FIG. 1 and FIG. 3 shows a section along the line III-III, also of Fig. 1, represent. FIG. 4 shows, in a representation analogous to FIG. 3, a system set to the greatest possible casting thickness. FIG. 5 illustrates a further embodiment of the system according to the invention in a representation analogous to FIG. 3.

Unterhalb einer nicht dargestellten Durchlaufkokille ist eine kurze, vertikal gerichtete Führungsstrecke 1 für den Strang angeordnet, an die die Biegeeinrichtung 2 anschließt. Unterhalb der Biegeeinrichtung ist eine Kreisbogenführung 3 vorgesehen, in der der Strang von nahezu vertikaler Richtung in eine nahezu horizontale Richtung geführt wird.A short, vertically directed guide section 1 for the strand is arranged below a continuous mold, not shown, to which the bending device 2 connects. A circular arc guide 3 is provided below the bending device, in which the strand is guided from an almost vertical direction to an almost horizontal direction.

Die Biegeeinrichtung 2, die an einem ortsfesten Stützgerüst 4 mittels eines nasenförmigen, am oberen Ende der Biegeeinrichtung vorgesehenen Hakens 5 aufgehängt ist und die sich an ihrem unteren Ende gegen dieses Stützgerüst 4 mittels einer Auflage 6 abstützt, ist aus zwei einander gegenüberliegenden, kastenförmig ausgebildeten Gerüstteilen 7, 8 aufgebaut. An dem an der Bogenaußenseite der Strangführung angeordneten Bogengerüstaußenteil 7 sinddiedie bogenaußenseitige Rollenbahn 9 bildenden Biege- bzw. Stützrollen 10 befestigt, wobei jeweils zwei Lagerböcke 11 nebeneinander liegender Rollen 10 von einem Querhaupt 12 mit.einer Zugschraube 13 gegen den Bogengerüstaußenteil 7 gespannt sind. An dem Bogengerüstaußenteil 7 sind seitlich der Enden der Rollen 10 jeweils Führungsbolzen 14 angeordnet, an denen der Bogengerüstinnenteil 8, der die die bogeninnenseitige Rollenbahn 15 bildenden Biege- bzw. Stützrollen 10 trägt, verschiebbar geführt ist. Zur Fixierung des Bogengerüstinnenteiles 8 am Bogengerüstaußenteil 7 sind seitlich der Enden der Rollen 10 Zugbolzen 16 vorgesehen, die mit ihrem Kopf 17 am Bogengerüstinnenteil 8 befestigt sind und die mit ihrem anderem Ende 18 unter Zwischenlage austauschbarer Beilagscheiben 19 am Bogengerüstaußenteil 7 abgestützt und mittels jeweils einer Hutmutter 20 gesichert sind.The bending device 2, which is suspended from a stationary support frame 4 by means of a nose-shaped hook 5 provided at the upper end of the bending device and which is supported at its lower end against this support frame 4 by means of a support 6, is composed of two box-shaped parts of the frame lying opposite one another 7, 8 built. The bending or support rollers 10, which form the outside of the roller track 9 on the outside of the bow, are attached to the outside of the bow frame of the strand guide, two bearing blocks 11 of adjacent rollers 10 being tensioned against the outside of the bow frame 7 by a crosshead 12 with a lag screw 13. On the arch frame outer part 7, guide bolts 14 are arranged on the sides of the ends of the rollers 10, on which the arch frame inner part 8, which carries the bending or support rollers 10 forming the inner roller conveyor 15, is slidably guided. To fix the bow frame inner part 8 to the bow frame outer part 7, 10 pull bolts 16 are provided to the side of the ends of the rollers, which are fastened with their heads 17 to the inner bow frame part 8 and which are supported with their other end 18 with interposed washers 19 on the bow frame outer part 7 and each with a cap nut 20 are secured.

Der Abstand des Bogengerüstinnenteiles 8 vom Bogengerüstaußenteil 7 und damit der Abstand der bogeninnenseitigen Rollenbahn 15 von der bogenaußenseitigen Rollenbahn 9 der Biegeeinrichtung 2 läßt sich durch Umschichten der Beilagscheiben 19 verändern.The distance between the inner part of the arch frame 8 from the outer part 7 of the arch frame and thus the distance between the roller track 15 on the inside of the bow and the roller track 9 on the outside of the bow of the bending device 2 can be changed by rearranging the washers 19.

Die Biege- bzw. Stützrollen 10 der bogeninnenseitigen Rollenbahn 15 sind nicht wie beim Bogengerüstaußenteil 7 direkt am Gerüstteil, sondern an sich einstückig über die Länge der Biegeeinrichtung 2 erstreckenden Rollenträgern 21, 22 befestigt, wobei jeweils ein Querhaupt 12 mit einer Zugschraube 13 zwei Lagerböcke 11 benachbarter Rollen 10 gegen den Rollenträger 21, 22 spannt.The bending or support rollers 10 of the roller track 15 on the inside of the arch are not directly attached to the frame part as in the case of the outer frame part 7, but rather are attached to roller supports 21, 22 that extend in one piece over the length of the bending device 2, each with a crosshead 12 with a tension screw 13 two bearing blocks 11 adjacent rollers 10 against the roller carrier 21, 22 spans.

Wie aus Fig. 1 ersichtlich ist, sind die Rollen 10 dreigeteilt ausgebildet, wobei die Rollen der Rollenbahn 15 an jeder Teilungsstelle und an ihren Enden an jeweils einem Rollenträger 21, 22 abgestützt sind. Die Rollenträger 21 und 22 sind mittels Schraubenbolzen 23 und Muttern 24 am Bogengerüstinnenteil befestigt. Sämtliche Rollenträger 21, 22 sind mittels Bolzen 25, auf denen Distanzhülsen 26 aufgeschoben sind, zu einer Baueinheit zusammengefaßt. Die Rollenträger weisen weiters etwa vertikal gerichtete Stützflächen 27 sowie jeweils eine horizontale Stützfläche 28 auf, mit denen sie sich gegen am Bogengerüstinnenteil 8 angeordnete Querträger 29 unter Zwischenlage von Beilagen 30, die an den Rollenträgern 21, 22 befestigt sind, abstützen.As can be seen from FIG. 1, the rollers 10 are formed in three parts, the rollers of the roller conveyor 15 being supported at each division point and at their ends on a roller carrier 21, 22 in each case. The roller carriers 21 and 22 are fastened to the inner part of the arch frame by means of bolts 23 and nuts 24. All roller carriers 21, 22 are combined into a structural unit by means of bolts 25, on which spacer sleeves 26 are pushed. The roller supports furthermore have approximately vertically directed support surfaces 27 and in each case a horizontal support surface 28 with which they are supported against transverse supports 29 arranged on the inner part of the arch structure 8 with the interposition of inserts 30 which are fastened to the roller supports 21, 22.

Die an die Biegeeinrichtung 2 anschließende Kreisbogenführung 3 weist zur Stützung der bogenaußenseitigen, aus Stützrollen 31 gebildeten Rollenbahn 32, Längsträger 33 auf, die mit bogeninnenseitig angeordneten Längsträgern 34, die die Stützrollen 31 der bogeninnenseitigen Rollenbahn 35 tragen, mittels nicht dargestellter Zuganker verbunden sind.The circular arc guide 3 adjoining the bending device 2 has, in order to support the outside of the roller conveyor 32 formed from supporting rollers 31, longitudinal members 33 which are connected to longitudinal members 34 arranged on the inside of the arc, which support the supporting rollers 31 of the inside roller conveyor 35, by means of tie rods (not shown).

Bei einer Verstellung des Abstandes der beiden Rollenbahnen 32, 35 der Kreisbogenführung 3 vom kleinsten Rollenbahnenabstand 36 zum größten auf dieser Anlage einstellbaren Abstand 37 gelangt die mit 38 bezeichnete, obere bogeninnenseitig liegende Endrolle der Kreisbogenführung, von der in den Fig. 2 und 3 mittels voll ausgezogener Linien dargestellten Lage in die in Fig. 2 und 3 mit strichpunktierten Linien dargestellte Lage, die von der voll ausgezogenen Lage in Richtung einer zur Horizontalen etwa unter 45° geneigten Geraden 39 verschoben ist. Die Neigung für diese Verschieberichtung liegt deswegen etwa bei 450, weil sich die Kreisbogenführung etwa von der Vertikalen bis nahezu in die Horizontale erstreckt und die Längsabweichung, die in den Fig. 2 und 3-mit 40 bezeichnet ist, d.h. die Abweichung in Längsrichtung der Rollenbahnen, an beiden Enden der Kreisbogenführung etwa gleich sein soll.When adjusting the distance between the two roller tracks 32, 35 of the circular arc guide 3 from the smallest roller track distance 36 to the largest distance 37 that can be set on this system, the upper end roller of the circular arc guide, designated 38, comes from which in FIGS. 2 and 3 means full Position shown in solid lines in the position shown in dash-dotted lines in FIGS. 2 and 3, which is shifted from the fully extended position in the direction of a line 39 inclined at approximately 45 ° to the horizontal. The inclination for this direction of displacement is about 45 0 because the circular arc extends approximately from the vertical to almost horizontal and the longitudinal deviation, which is designated in FIGS. 2 and 3 with 40, ie the deviation in the longitudinal direction of the Roller tracks, should be approximately the same at both ends of the circular arc guide.

Die Verschieberichtung 41 des Bogengerüstinnenteiles gegenüber dem Bogengerüstaußenteil ist ebenfalls unter einem bestimmten Winkel 42 zur Horizontalen geneigt. Wie aus Fig. 2 ersichtlich ist, würde bei einem Verschieben des Bogengerüstinnenteiles 8 der Biegeeinrichtung 2 auf den größtmöglichen Abstand 37 die untere Endrolle 43 des Bogengerüstinnenteiles 8 mit der oberen Endrolle 38 der Kreisbogenführung 3 in Kontakt gelangen; die Verschiebung ist dann behindert. Um dies zu vermeiden, werden erfindungsgemäß die Rollenträger 21, 22, die bei engstem eingestelltem Abstand 36 eine Länge 44 aufweisen, gegen Rollenträger 21', 22' mit verkürzter Länge 45 ausgetauscht. Dies geschieht durch Lösen der Muttern 24 der Schraubenbolzen 23, Herausheben der Rollenträger 21, 22 und Einsetzen der neuen Rollenträger 21', 22' und anschließendes Festziehen der Muttern 24 (vgl. Fig. 4).The direction of displacement 41 of the inner part of the arch structure relative to the outer part of the arch structure is also inclined at a certain angle 42 to the horizontal. As can be seen from FIG. 2, the lower end roller 43 of the inner arch part 8 would come into contact with the upper end roller 38 of the circular arch guide 3 when the inner arch part 8 of the bending device 2 was moved to the greatest possible distance 37; the shift is then hindered. In order to avoid this, according to the invention the roller carriers 21, 22, which have a length 44 at the narrowest set distance 36, are against roller carriers 21 ', 22 'with a shortened length 45. This is done by loosening the nuts 24 of the bolts 23, lifting out the roller carriers 21, 22 and inserting the new roller carriers 21 ', 22' and then tightening the nuts 24 (cf. FIG. 4).

Der Bereich zwischen kleinstem 36 und größtem 37 Abstand der Rollenbahnen ist zweckmäßig in mehrere Teilbereiche unterteilt, wobei für jeden Teilbereich eigene Rollenträger 21, 22; 21', 22' etc. vorgesehen sind. Innerhalb dieser Teilbereiche lassen sich die für diesen Teilbereich jeweils vorgesehenen Rollenträger für beliebige andere Abstände,der Rollenbahnen 9, 15 verwenden, da eine Annäherung bzw. Entfernung der Endrollen 38, 43 des Bogengerüstinnenteiles 8 und der Kreisbogenführung 3 bis zu einem gewissen Maß zulässig ist.The area between the smallest 36 and the largest 37 distance of the roller tracks is expediently divided into several partial areas, with separate roller carriers 21, 22; 21 ', 22' etc. are provided. Within these sub-areas, the roller supports provided for this sub-area can be used for any other spacing of the roller tracks 9, 15, since an approximation or removal of the end rollers 38, 43 of the inner part 8 of the arch frame and the circular arc guide 3 is permissible to a certain extent.

Gleichzeitig mit dem Austausch der Rollenträger 21, 22 wird die Verstellung des Abstandes des Bogengerüstinnenteiles 8 zum Bogengerüstaußenteil 7 durch Umschichten der Beilagscheiben 19 vorgenommen.Simultaneously with the exchange of the roller carriers 21, 22, the adjustment of the distance of the bow-structure inner part 8 is made to B ogengerüstaußenteil 7 by rearranging the washers 19th

Bei der in Fig. 5 dargestellten Ausführungsform ist der Bogengerüstinnenteil am Bogengerüstaußenteil mittels zweier Verbindungsbolzen 46 fixiert. Gemäß dieser Ausführungsform werden beim Umrüsten der Anlage von einer Gießdicke auf eine andere ebenfalls die Rollenträger 21, 22 ausgetauscht, wobei diese jedoch nicht nur eine unterschiedliche Länge 44 bzw. 45 aufweisen, sondern auch eine unterschiedliche, den Rollenabstand bestimmende Dicke 47, d.h. es differiert auch der Abstand der etwa vertikal gerichteten Stützflächen 27 der Rollenträger 21, 22 bis zu den Auflageflächen 48 der Lagerböcke 11. Bei dieser Ausführungsform gestaltet sich das Umrüsten der Anlage von einer Strangdicke zu einer anderen besonders einfach, da der Bogengerüstinnenteil 8 gegenüber dem Bogengerüstaußenteil 7 nicht verschoben zu werden braucht. Es wird dadurch die Anzahl der durchzuführenden Manipulationen an der Biegeeinrichtung 2 verringert. Bei dieser Ausführungsform ist der Bereich zwischen kleinstem 36 und größtem 37 Abstand der Rollenbahnen 9 und 15 ebenfalls in Teilbereiche unterteilt, wobei für jeden Teilbereich Rollenträger mit bestimmter Länge und Dicke vorgesehen sind. Innerhalb jedes Teilbereiches läßt sich der Rollenbahnabstand durch Austausch der zwischen den etwa vertikalen Stützflächen 27 und den Querträgern 29 vorgesehenen Beilagen 30 variieren.In the embodiment shown in FIG. 5, the inner part of the arch frame is fixed to the outer part of the arch frame by means of two connecting bolts 46. According to this embodiment, when converting the system from one casting thickness to another, the roller carriers 21, 22 are also exchanged, although these not only have a different length 44 or 45, but also a different thickness 47 that determines the roller spacing, ie it differs also the distance of the approximately vertically directed support surfaces 27 of the roller carriers 21, 22 to the support surfaces 48 of the bearing blocks 11. In this embodiment, the conversion of the system from one strand thickness to another is particularly simple since the inner part of the arch frame 8 is not compared to the outer part 7 of the arch frame needs to be moved. It will be there reduced by the number of manipulations to be carried out on the bending device 2. In this embodiment, the area between the smallest 36 and the largest 37 distance of the roller tracks 9 and 15 is also divided into partial areas, with roller carriers having a certain length and thickness being provided for each partial area. Within each section, the roller conveyor distance can be varied by exchanging the inserts 30 provided between the approximately vertical support surfaces 27 and the cross members 29.

Sowohl bei der in den Fig. 1 bis 4 als auch bei der in Fig. 5 dargestellten Ausführungsform sind die bogenaußenseitigen Rollenbahnen 9, 32 starr angeordnet, d.h. sie werden bei Einstellen eines der Strangdicke entsprechenden Rollenspaltes nicht verstellt. Dies ist jedoch nur eine bevorzugte Ausführungsform. Es könnten auch die bogeninnenseitigen Rollenbahnen 15, 35 unverschiebbar und die bogenaußenseitigen Rollenbahnen auf eine gewünschte Strangdicke einstellbar sein.1 to 4 as well as in the embodiment shown in FIG. 5, the roller tracks 9, 32 on the outside of the arc are arranged rigidly, i.e. they are not adjusted when a roll gap corresponding to the strand thickness is set. However, this is only a preferred embodiment. The roller tracks 15, 35 on the inside of the arc could also be immovable and the roller tracks on the outside of the arc could be set to a desired strand thickness.

Claims (8)

1. Bogenstranggießanlage mit einer unterhalb der Kokille angeordneten Strang-Biegeeinrichtung (2) und einer daran anschließenden, einander gegenüberliegende Stützrollenbahnen (32, 35) aufweisenden Strang-Kreisbogenführung (3), wobei die Biegeeinrichtung (2) zwei einander gegenüberliegende, jeweils Biege- bzw. Stützrollen (10, 43) tragende Bogengerüstteile (7, 8) aufweist, die aneinander abgestützt sind und wobei der Abstand (36, 37) der Stützrollenbahnen (32, 35) der Kreisbogenführung (3) entsprechend einem einzustellenden Strangquerschnitt veränderbar ist, dadurch gekennzeichnet, daß einer der Bogengerüstteile (8) der Biegeeinrichtung (2) an ihm lösbar befestigte, austauschbare, auf unterschiedliche Strangquerschnittsformate (36, 37) mit ihren Abmessungen, insbesondere ihrer Länge (44, 45) angepaßte Rollenträger (21, 22; 21', 22') aufweist.1. Continuous casting machine with a strand bending device (2) arranged below the mold and an adjoining, opposite support roller conveyor (32, 35) having strand circular arc guide (3), the bending device (2) two opposite, each bending or Has support frame (7, 8) supporting arch frame parts (7, 8) which are supported on each other and wherein the distance (36, 37) of the support roller tracks (32, 35) of the circular arc guide (3) can be changed according to a strand cross section to be set, characterized that one of the arch frame parts (8) of the bending device (2) releasably fastened to it, interchangeable, adapted to different strand cross-sectional formats (36, 37) with their dimensions, in particular their length (44, 45), roller carriers (21, 22; 21 ', 22 '). 2. Anlage nach Anspruch 1, dadurch gekennzeichnet, daß die Rollenträger (21, 22; 21', 22') an einem Bogengerüstinnenteil (8) der Biegeeinrichtung (2) befestigt sind.2. Plant according to claim 1, characterized in that the roller carriers (21, 22; 21 ', 22') are attached to an inner arch frame part (8) of the bending device (2). 3. Anlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Abstand (36, 37) der einander gegenüberliegenden Biege- bzw. Stützrollen (10) der Biegeeinrichtung (2) durch Austausch der auf unterschiedliche Strangquerschnittsformate mit ihrer Dicke (47) angepaßten Rollenträger (21, 22) veränderbar ist (Fig. 5).3. Installation according to claim 1 or 2, characterized in that the distance (36, 37) of the opposing bending or supporting rollers (10) of the bending device (2) by exchanging the roller carrier adapted to different strand cross-sectional formats with their thickness (47) (21, 22) is changeable (Fig. 5). 4. Anlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Abstand zwischen Bogengerüstinnenteil (8) und einem Bogengerüstaußenteil (7) der Biegeeinrichtung (2) durch Parallelverschieben eines der Bogengerüstteile (7, 8) veränderbar ist.4. Plant according to claim 1 or 2, characterized in that the distance between the inner arch part (8) and an outer arch part (7) of the bending device (2) by parallel displacement of one of the arch parts (7, 8) is variable. 5. Anlage nach Anspruch 4, dadurch gekennzeichnet, daß der Bogengerüstinnenteil (8) am Bogengerüstaußenteil (7) mittels Bolzen (14, 16) befestigt ist, entlang deneneiner der Bogengerüstteile (7, 8) verschiebbar geführt ist und an denen dieser Teil mittels Beilagscheiben (19) gegen den zweiten Bogengerüstteil abgestützt ist.5. Plant according to claim 4, characterized in that the inner part of the arch structure (8) on the arched rim outer frame part (7) is fastened by means of bolts (14, 16) along which one of the arch frame parts (7, 8) is slidably guided and on which this part is supported by means of washers (19) against the second arch frame part. 6. Anlage nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, daß die Rollenträger (21, 22; 21', 22') über die Länge der Biegeeinrichtung (2) einstückig ausgebildet sind.6. Plant according to claims 1 to 5, characterized in that the roller carrier (21, 22; 21 ', 22') over the length of the bending device (2) are integrally formed. 7. Anlage nach den Ansprüchen 1 bis 6, dadurch gekennzeichnet, daß die Rollenträger (21, 22) gegen die Bogengerüstteile (8) mittels austauschbarer Beilagen (30) abgestützt sind.7. Plant according to claims 1 to 6, characterized in that the roller carriers (21, 22) are supported against the arch frame parts (8) by means of interchangeable inserts (30). 8. Anlage nach den Ansprüchen 1 bis 7 mit zwei oder mehrfach gelagerten Biege- bzw. Stützrollen der Biegeeinrichtung, dadurch gekennzeichnet, daß an jeder der Stützstellen ein Rollenträger (21, 22; 21', 22') vorgesehen ist, wobei die nebeneinander angeordneten Rollenträger zu einer gemeinsam aus- und einbaubaren Baueinheit verbunden sind, vorzugsweise mittels die Rollenträger durchsetzender Bolzen (25).8. Plant according to claims 1 to 7 with two or multiple bearing bending or support rollers of the bending device, characterized in that a roller carrier (21, 22; 21 ', 22') is provided at each of the support points, the being arranged side by side Roller carriers are connected to a jointly removable and installable unit, preferably by means of bolts (25) passing through the roller carriers.
EP80890096A 1979-10-01 1980-09-03 Curved continuous casting plant Expired EP0027105B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT639679A AT362542B (en) 1979-10-01 1979-10-01 ARC CONTINUOUS CASTING MACHINE
AT6396/79 1979-10-01

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EP0027105A1 true EP0027105A1 (en) 1981-04-15
EP0027105B1 EP0027105B1 (en) 1983-07-20

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US (1) US4480680A (en)
EP (1) EP0027105B1 (en)
JP (1) JPS5677053A (en)
AT (1) AT362542B (en)
BR (1) BR8006267A (en)
CA (1) CA1149576A (en)
DE (1) DE3064283D1 (en)
ES (1) ES8105173A1 (en)

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DE19933635A1 (en) * 1999-07-17 2001-01-18 Sms Demag Ag Method and device for changing the format thickness of the cast strand of a continuous caster in a continuous casting operation
CN1244424C (en) * 2000-12-21 2006-03-08 Sms迪马格股份公司 Casting roller with variable profile for casting metal strip in casting roller plant

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DE1458201B2 (en) * 1963-07-03 1971-06-03 Schloemann AG, 4000 Dusseldorf DRIVE AND DIRECTIONAL ROLLER FOR A CONTINUOUS CASTING PLANT
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Also Published As

Publication number Publication date
JPS5677053A (en) 1981-06-25
ATA639679A (en) 1980-10-15
AT362542B (en) 1981-05-25
ES495513A0 (en) 1981-06-01
CA1149576A (en) 1983-07-12
ES8105173A1 (en) 1981-06-01
EP0027105B1 (en) 1983-07-20
DE3064283D1 (en) 1983-08-25
BR8006267A (en) 1981-04-07
US4480680A (en) 1984-11-06

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