EP0222732A2 - Strand guide - Google Patents

Strand guide Download PDF

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Publication number
EP0222732A2
EP0222732A2 EP86890295A EP86890295A EP0222732A2 EP 0222732 A2 EP0222732 A2 EP 0222732A2 EP 86890295 A EP86890295 A EP 86890295A EP 86890295 A EP86890295 A EP 86890295A EP 0222732 A2 EP0222732 A2 EP 0222732A2
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EP
European Patent Office
Prior art keywords
support
strand guide
segment
segments
side member
Prior art date
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
Application number
EP86890295A
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German (de)
French (fr)
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EP0222732B1 (en
EP0222732A3 (en
Inventor
Aktiengesellschaf Voest-Alpine
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Primetals Technologies Austria GmbH
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Voestalpine AG
Voest Alpine Industrienlagenbau GmbH
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Publication of EP0222732A2 publication Critical patent/EP0222732A2/en
Publication of EP0222732A3 publication Critical patent/EP0222732A3/en
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Publication of EP0222732B1 publication Critical patent/EP0222732B1/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 strand guide, in particular for a steel slab caster, with a plurality of support segments supporting rollers, wherein a plurality of support segments are attached to a longitudinally integral longitudinal member, in particular an arcuate longitudinal member, and two adjacent support segments are jointly attached to each other by means of support elements arranged at their ends a support bracket supported on the side member are mounted.
  • the support straps are of the type To balance the balanciers on the one-piece side member and to provide a swivel drive, which engages the swivel bracket via a swivel lever, to compensate for roll dislocations between adjacent support segments.
  • This has the advantage that it is not necessary to pay attention to an exact positioning of the support straps on the one-piece side member, but it is very difficult or almost impossible to ensure an arcuate roller track of the rollers of all the support segments by pivoting the support straps and at the same time to avoid a roller offset.
  • pivoting the support tabs By pivoting the support tabs, a support segment is lowered and the second support segment mounted on this support tab is raised, causing kinks in the roller conveyor.
  • the pivoting mounting of the support straps is structurally very complex; in particular, it is difficult to ensure the function of the pivot drives after the continuous casting system has been in operation for a long time, since the arcuate strand guide belongs to the part of the continuous casting system which is most stressed by heat, cooling water, scale and rust.
  • Another disadvantage is the fact that longitudinal strains of the support segments cannot be taken into account by the support straps, especially since the positions of the support straps are not precisely defined from the outset, but only after actuation of the swivel drives, which are actuated until a possible roller offset disappeared, more or less randomly.
  • the invention aims at avoiding these disadvantages and difficulties and has as its object to create a strand guide of the type described in the introduction, in which a roller offset between adjacent support segments with certainty and in particular a deviation of the roller conveyor from the ideal circular arc path can be avoided, but simple manufacture of the one-piece longitudinal members carrying the support segments is ensured, measurement work can be reduced to a minimum and quick and easy installation and removal of the support segments is possible.
  • each support bracket is rigidly attached to the side member by means of two parallel fitting bolts, the fitting bolts of all the support straps are approximately in the neutral fiber of the side member and each support segment against the side member can be tensioned by means of a clamping device.
  • the production of the longitudinal beams is extremely simple, since the holes provided in the longitudinal beams for the dowel bolts can be produced on a coordinate boring machine with great accuracy and without great effort.
  • the manufacture of the carrier straps is particularly simple. In the event of a general overhaul of the system, the one-piece side members do not have to be removed. Rather, it is sufficient to remove and overhaul the support segments and the brackets.
  • each support bracket expediently has a recess which immovably receives the support element of a support segment and a recess which receives the support element of the adjacent support segment, which is preferably designed as a sliding block, with play, the play parallel to the strand guideway at the transition point from the one support segment is directed to the adjacent support segment.
  • the arcuate strand guide In order to ensure an offset-free connection of the arcuate strand guide to the adjacent strand guide parts of the continuous casting plant, advantageously engages in the support tabs provided at one end of the arcuate side member form a support segment adjacent to the arcuate strand guide part, such as a support segment of the bending zone and / or the straightening zone.
  • FIG. 1 shows a side view of a strand guide according to the invention and FIGS. 2 and 3 each show sections along lines II-II and III-III of FIG. 1.
  • a strand guide 1 of a continuous sheet casting installation has continuous, arc-shaped and parallel longitudinal beams 3, 4 for receiving a plurality of support segments 2, each of which is supported on the foundation 7 by means of bearings 5 and brackets 6, etc. at the lower end directly on the bearing 5 and at the upper end and in the center via hinge plates 6.
  • Each side member 3, 4 is formed from two parallel cheeks 8, between each of which support plates 9 are arranged to support the support segments 2, the support plates 9 on each side member 3, 4 are arranged in the longitudinal direction at a distance from one another, which corresponds to the longitudinal extent of the support segments 2 plus the distance between adjacent support segments 2.
  • Each support bracket 9 is rigidly fastened to the longitudinal beams 3, 4 by means of two fitting bolts 11 arranged approximately in the neutral fiber 10 of the longitudinal beams 3, 4.
  • each support bracket 9 has two U-shaped recesses 13, 14 which are arranged one behind the other in the longitudinal direction of the longitudinal supports and which receive support elements 15, 16 which are designed as bolts and are arranged laterally at both ends of the support segments 2 .
  • the recesses 13, 14 are open approximately in the radial direction to the center of the strand guide track 17, so that the support segments 2 can be removed in the direction of the center from the side members, the support elements 15, 16 sliding out of the recesses 13, 14.
  • the side walls of the recesses 13, 14 are directed in the direction of removal of the respective support segment 2, so that the side walls of the recesses 13, 14 receiving a support segment 2 are directed parallel to each of the support brackets 9, whereas the side walls of the recesses 13, 14 of a support bracket 9 are at an angle are directed towards each other.
  • each support bracket 9 receives a support element 15 of each support segment 2 immovably, whereas the adjacent U-shaped recess 14 of the same support bracket 9 receives a support element 16 of the adjacent support segment 2 to enable thermal expansion with play 18.
  • the support elements 16, which in this case are designed as sliding blocks, are located approximately in the center of the recess 14, so that there is play 18 in the longitudinal direction of a support segment 2 in front of and behind the support element 16.
  • the play 18 and thus the bottom of the recess 14 is directed parallel to the strand guide track 17 at the transition point 19 from a support segment 2 to the adjacent support segment 2.
  • clamping devices 20 For fixing the support segments 2 to the side members 3, 4 serve clamping devices 20. These clamping devices are formed by clamping screws which on the one hand connect the longitudinal beams 3, 4 and the cheeks 8 and the longitudinal beams 3, 4 mutually clamping bolts 21 and on the other hand tabs 22 welded to the support segments 2.
  • the support segments of the bending zone 23 and the straightening zone 24 adjacent to the arcuate strand guide 1 likewise have support elements 15, 16 which engage in the recesses 13, 14 of the support tabs 9 arranged at the ends of the arcuate longitudinal supports 3, 4, again the lower support element 16 of the bending zone 23 is designed as a sliding block and is displaceable in the recess 14 in the direction of the strand guide track 17.
  • the recess 14 is directed parallel to the strand guide track 17 and is open towards the mold.
  • the strand guide 1 described above can be manufactured with great accuracy without great effort by making the bores for the fitting bolts 11 in the side members 3, 4 on a coordinate boring machine.
  • the production of the support straps 9 is just as easy.
  • the support straps can also advantageously be provided in the horizontal rectilinear part of the strand guide 1, the adjacent support segments 2 'forming a rectilinear roller conveyor via the support elements 15', 16 'designed as bolts on support straps 9' on one rectilinear side members 3 'are attached.
  • the mounting of the brackets 9 ' is also accomplished here via dowel bolts 11, which have their axis in the neutral fiber 10' of the side member 3 '.
  • the invention is not limited to the exemplary embodiment shown, but can be modified in various ways.
  • a wedge connection can be provided instead of the clamping screws 20.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Fish Paste Products (AREA)
  • Confectionery (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Continuous Casting (AREA)

Abstract

1. A strand guide (1), in particular for a steel-slab continuous casting plant, comprising a plurality of supporting segments (2, 2') carrying rollers (12), several supporting segments (2, 2') being fastened to a longitudinal carrier (3, 4, 3') designed in one piece in the longitudinal direction, in particular an arcuately shaped longitudinal carrier (3, 4), and two neighbouring supporting segments (2, 2') each being commonly mounted, by means of carrying elements (15, 16, 15', 16') arranged at their ends, on a carrying bracket (9, 9') supported on the longitudinal carrier (3, 4, 3'), characterised in that each carrying bracket (9, 9') is rigidly fastened to the longitudinal carrier (3, 4, 3') by means of two parallel fitting pins (11), the fitting pins (11) of all the carrying brackets (9, 9') being located approximately in the neutral fibre (10, 10') of the longitudinal carrier (3, 4) and each supporting segment (2) being tensible relative to the longitudinal carrier (3, 4, 3') by a tensioning means (20).

Description

Die Erfindung betrifft eine Strangführung, insbesondere für eine Stahlbrammenstranggießanlage, mit einer Mehrzahl von Rollen tragenden Stützsegmenten, wobei mehrere Stützsegmente an einem in Längsrichtung einstückigen Längsträger, insbesondere einem bogenförmig gestalteten Längsträger, befestigt sind und jeweils zwei benachbarte Stützsegmente mittels an ihren Enden angeordneter Tragelemente gemeinsam an einer am Längsträger abgestützten Traglasche gelagert sind.The invention relates to a strand guide, in particular for a steel slab caster, with a plurality of support segments supporting rollers, wherein a plurality of support segments are attached to a longitudinally integral longitudinal member, in particular an arcuate longitudinal member, and two adjacent support segments are jointly attached to each other by means of support elements arranged at their ends a support bracket supported on the side member are mounted.

Für Bogenstranggießanlagen mit einer Mehrzahl von Rollen tragenden Stützsegmenten ist es bekannt (Iron and Steel International, December 1978, Vol. 51, No. 6, Seiten 373 bis 380, AT-B - 360.690), mehrere Stützsegmente an einem bogenförmig gestalteten einteiligen Längsträger bzw. Fundamentrahmen zu lagern, wobei die Stützsegmente mit speziell gestalteten Stützflächen direkt an Gegenstützflächen der Fundamentrahmen abgestützt sind.For continuous sheet caster systems with a plurality of support segments supporting rollers (Iron and Steel International, December 1978, Vol. 51, No. 6, pages 373 to 380, AT-B - 360.690), it is known to have several support segments on an arc-shaped one-piece longitudinal member or To store the foundation frame, the support segments being supported directly on counter-support surfaces of the foundation frame with specially designed support surfaces.

Um einen Rollenversatz zwischen benachbarten Stützsegmenten zu vermeiden, ist eine äüßerst genaue Bearbeitung der Stütz- und Gëgenstützflächen erforderlich. Dies stellt für den Fundamentrahmen infolge seiner Sperrigkeit einen enormen fertigungstechnischen und meßtechnischen Aufwand dar. Weiters ist eine Generalüberholung solcher Strangführungen sehr aufwendig, da man gezwungen ist, zur Nacharbeitung der Gegenstützflächen die sperrigen Fundamentrahmen aus der Anlage zu entfernen.In order to avoid roll misalignment between adjacent support segments, extremely precise machining of the support and counter support surfaces is required. Because of its bulkiness, this represents an enormous manufacturing and measuring effort for the foundation frame. Furthermore, a general overhaul of such strand guides is very complex, since one is forced to remove the bulky foundation frame from the system for reworking the counter support surfaces.

Zur Vermeidüng dieser Schwierigkeiten ist es bei einer Strangführung der eingangs beschriebenen Art bekannt (FR-­PS 2.447.764), die Traglaschen nach der Art eines Balanciers am einstückigen Längsträger schwenkbar zu lagern und einen Schwenkantrieb, der über einen Schwenkhebel an der Traglasche angreift, zum Ausgleich von Rollenversetzungen zwischen benachbarten Stützsegmenten vorzusehen. Dies hat den Vorteil, daß auf eine genaue Positionierung der Traglaschen am einstückigen Längsträger nicht geachtet werden muß, jedoch ist es sehr schwierig bzw. fast unmöglich, durch Schwenken der Traglaschen eine kreisbogenförmige Rollenbahn der Rollen sämtlicher Stützsegmente sicherzustellen und gleichzeitig einen Rollenversatz zu vermeiden. Durch das Verschwenken der Traglaschen wird nämlich ein Stützsegment abgesenkt und das zweite, an dieser Traglasche gelagerte Stützsegment gehoben, wodurch in der Rollenbahn Knicke entstehen.To avoid these difficulties, it is known for a strand guide of the type described at the outset (FR-PS 2,447,764) that the support straps are of the type To balance the balanciers on the one-piece side member and to provide a swivel drive, which engages the swivel bracket via a swivel lever, to compensate for roll dislocations between adjacent support segments. This has the advantage that it is not necessary to pay attention to an exact positioning of the support straps on the one-piece side member, but it is very difficult or almost impossible to ensure an arcuate roller track of the rollers of all the support segments by pivoting the support straps and at the same time to avoid a roller offset. By pivoting the support tabs, a support segment is lowered and the second support segment mounted on this support tab is raised, causing kinks in the roller conveyor.

Weiters ist die schwenkbare Lagerung der Traglaschen konstruktiv sehr aufwendig, insbesondere ist es schwierig, die Funktion der Schwenkantriebe nach längerem Betrieb der Stranggießanlage zu gewährleisten, da die bogenförmige Strangführung zu dem durch Hitze, Kühlwasser, Zunder und Rost am höchsten beanspruchten Teil der Stranggießanlage gehört. Ein weiterer Nachteil ist darin zu sehen, daß Längsdehnungen der Stützsegmente von den Traglaschen nicht berücksichtigt werden können, zumal die Lagen der Traglaschen von vornherein nicht genau definiert sind, sondern sich erst nach Betätigung der Schwenkantriebe, die so lange betätigt werden, bis ein eventueller Rollenversatz verschwunden ist, mehr oder weniger zufällig ergeben.Furthermore, the pivoting mounting of the support straps is structurally very complex; in particular, it is difficult to ensure the function of the pivot drives after the continuous casting system has been in operation for a long time, since the arcuate strand guide belongs to the part of the continuous casting system which is most stressed by heat, cooling water, scale and rust. Another disadvantage is the fact that longitudinal strains of the support segments cannot be taken into account by the support straps, especially since the positions of the support straps are not precisely defined from the outset, but only after actuation of the swivel drives, which are actuated until a possible roller offset disappeared, more or less randomly.

Die Erfindung bezweckt die Vermeidung dieser Nachteile und Schwierigkeiten und stellt sich die Aufgabe, eine Strangführung der eingangs beschriebenen Art zu schaffen, bei der ein Rollenversatz zwischen benachbarten Stützsegmenten mit Sicherheit und insbesondere eine Abweichung der Rollenbahn von der idealen Kreisbogenbahn vermieden werden, wobei jedoch eine einfache Fertigung der einstückigen, die Stützsegmente tragenden Längsträger sichergestellt ist, Vermessungsarbeiten auf ein Minimum reduziert werden können und ein schneller, einfacher Ein-­und Ausbau der Stützsegmente möglich ist.The invention aims at avoiding these disadvantages and difficulties and has as its object to create a strand guide of the type described in the introduction, in which a roller offset between adjacent support segments with certainty and in particular a deviation of the roller conveyor from the ideal circular arc path can be avoided, but simple manufacture of the one-piece longitudinal members carrying the support segments is ensured, measurement work can be reduced to a minimum and quick and easy installation and removal of the support segments is possible.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß jede Traglasche mittels zweier zueinander paralleler Paßbolzen am Längsträger starr befestigt ist, wobei die Paßbolzen sämtlicher Traglaschen etwa in der neutralen Faser des Längsträgers liegen und jedes Stützsegment gegen den Längsträger mittels einer Spanneinrichtung spannbar ist.This object is achieved in that each support bracket is rigidly attached to the side member by means of two parallel fitting bolts, the fitting bolts of all the support straps are approximately in the neutral fiber of the side member and each support segment against the side member can be tensioned by means of a clamping device.

Die Fertigung der Längsträger gestaltet sich äußerst einfach, da die in den Längsträgern vorgesehenen Bohrungen für die Paßbolzen mit hoher Genauigkeit und ohne großen Aufwand auf einem Koordinatenbohrwerk hergestellt werden können. Desgleichen gestaltet sich die Fertigung der Traglaschen besonders einfach. Bei einer Generalüberholung der Anlage müssen die einstückigen Längsträger nicht ausgebaut werden. Es genügt vielmehr, die Stützsegmente und die Traglaschen zu entfernen und zu überholen.The production of the longitudinal beams is extremely simple, since the holes provided in the longitudinal beams for the dowel bolts can be produced on a coordinate boring machine with great accuracy and without great effort. Likewise, the manufacture of the carrier straps is particularly simple. In the event of a general overhaul of the system, the one-piece side members do not have to be removed. Rather, it is sufficient to remove and overhaul the support segments and the brackets.

Zur Aufnahme von Wärmedehnungen weist zweckmäßig jede Traglasche eine das Tragelement eines Stützsegmentes unbeweglich aufnehmende Ausnehmung und eine das Tragelement des benachbarten Stützsegmentes, welches vorzugsweise als Gleitstein ausgebildet ist, mit Spiel aufnehmende Ausnehmung auf, wobei das Spiel parallel zur Strangführungsbahn an der Übergangsstelle von dem einen Stützsegment zum benachbarten Stützsegment gerichtet ist.For absorbing thermal expansions, each support bracket expediently has a recess which immovably receives the support element of a support segment and a recess which receives the support element of the adjacent support segment, which is preferably designed as a sliding block, with play, the play parallel to the strand guideway at the transition point from the one support segment is directed to the adjacent support segment.

Um einen versatzfreien Anschluß der bogenförmigen Strangführung zu den benachbarten Strangführungsteilen der Stranggießanlage sicherzustellen, greift vorteilhaft in die an einem Ende des bogenförmigen Längsträgers vorgesehenen Traglaschen ein dem bogenförmigen Strangführungsteil benachbartes Stützsegment, wie ein Stützsegment der Biegezone und/oder der Richtzone, ein.In order to ensure an offset-free connection of the arcuate strand guide to the adjacent strand guide parts of the continuous casting plant, advantageously engages in the support tabs provided at one end of the arcuate side member form a support segment adjacent to the arcuate strand guide part, such as a support segment of the bending zone and / or the straightening zone.

Die Erfindung ist nachfolgend anhand der schematischen Zeichnung an einem Ausführungsbeispiel näher erläutert, wobei Fig. 1 eine Seitenansicht einer erfindungsgemäßen Strangführung zeigt und die Fig. 2 und 3 jeweils Schnitte gemäß den Linien II-II bzw. III-III der Fig. 1 darstellen.The invention is explained in more detail below with reference to the schematic drawing using an exemplary embodiment, wherein FIG. 1 shows a side view of a strand guide according to the invention and FIGS. 2 and 3 each show sections along lines II-II and III-III of FIG. 1.

Eine Strangführung 1 einer Bogenstranggießanlage weist zur Aufnahme mehrerer Stützsegmente 2 durchgehende, bogenförmig gestaltete und zueinander parallel liegende Längsträger 3, 4 auf, die jeweils mittels Lager 5 und Laschen 6 am Fundament 7 abgestützt sind, u.zw. am unteren Ende direkt am Lager 5 und am oberen Ende sowie mittig über Gelenklaschen 6. Jeder Längsträger 3, 4 ist aus zwei parallelen Wangen 8 gebildet, zwischen denen jeweils Traglaschen 9 zur Abstützung der Stützsegmente 2 angeordnet sind, wobei die Traglaschen 9 an jedem Längsträger 3, 4 in Längsrichtung im Abstand voneinander angeordnet sind, der der Längserstreckung der Stützsegmente 2 plus dem Abstand benachbarter Stützsegmente 2 entspricht.A strand guide 1 of a continuous sheet casting installation has continuous, arc-shaped and parallel longitudinal beams 3, 4 for receiving a plurality of support segments 2, each of which is supported on the foundation 7 by means of bearings 5 and brackets 6, etc. at the lower end directly on the bearing 5 and at the upper end and in the center via hinge plates 6. Each side member 3, 4 is formed from two parallel cheeks 8, between each of which support plates 9 are arranged to support the support segments 2, the support plates 9 on each side member 3, 4 are arranged in the longitudinal direction at a distance from one another, which corresponds to the longitudinal extent of the support segments 2 plus the distance between adjacent support segments 2.

Jede Traglasche 9 ist mittels zweier etwa in der neutralen Faser 10 der Längsträger 3, 4 angeordneter Paßbolzen 11 starr am Längsträger 3, 4 befestigt. Zur Lagerung der Rollen 12 tragenden Stützsegmente 2 weist jede Traglasche 9 zwei U-förmige, in Längsrichtung der Längsträger hintereinanderliegende Ausnehmungen 13, 14 auf, die als Bolzen ausgebildete Tragelemente 15, 16, die jeweils seitlich an beiden Enden der Stützsegmente 2 angeordnet sind, aufnehmen.Each support bracket 9 is rigidly fastened to the longitudinal beams 3, 4 by means of two fitting bolts 11 arranged approximately in the neutral fiber 10 of the longitudinal beams 3, 4. To support the rollers 12 supporting support segments 2, each support bracket 9 has two U-shaped recesses 13, 14 which are arranged one behind the other in the longitudinal direction of the longitudinal supports and which receive support elements 15, 16 which are designed as bolts and are arranged laterally at both ends of the support segments 2 .

Jeweils zwei benachbarte Stützsegmente 2 sind gemeinsam an einer Traglasche 9 jedes Längsträgers 3 bzw. 4 abgestützt. Die Ausnehmungen 13, 14 sind etwa in radialer Richtung zum Mittelpunkt der Strangführungsbahn 17 offen, so daß die Stützsegmente 2 in Richtung zum Mittelpunkt aus den Längsträgern entfernbar sind, wobei die Tragelemente 15, 16 aus den Ausnehmungen 13, 14 herausgleiten. Die Seitenwände der Ausnehmungen 13, 14 sind in Ausbaurichtung des jeweiligen Stützsegmentes 2 gerichtet, so daß die Seitenwände der ein Stützsegment 2 aufnehmenden Ausnehmungen 13, 14 jeweils benachbarter Traglaschen 9 parallel gerichtet sind, wogegen die Seitenwände der Ausnehmungen 13, 14 einer Traglasche 9 im Winkel zueinander gerichtet sind.Two adjacent support segments 2 are jointly supported on a support bracket 9 of each side member 3 and 4, respectively. The recesses 13, 14 are open approximately in the radial direction to the center of the strand guide track 17, so that the support segments 2 can be removed in the direction of the center from the side members, the support elements 15, 16 sliding out of the recesses 13, 14. The side walls of the recesses 13, 14 are directed in the direction of removal of the respective support segment 2, so that the side walls of the recesses 13, 14 receiving a support segment 2 are directed parallel to each of the support brackets 9, whereas the side walls of the recesses 13, 14 of a support bracket 9 are at an angle are directed towards each other.

Jeweils eine U-förmige Ausnehmung 13 jeder Traglasche 9 nimmt ein Tragelement 15 jedes Stützsegmentes 2 unbeweglich auf, wogegen die benachbarte U-förmige Ausnehmung 14 derselben Traglasche 9 ein Tragelement 16 des benachbarten Stützsegmentes 2 zur Ermöglichung von Wärmedehnungen mit Spiel 18 aufnimmt.In each case a U-shaped recess 13 of each support bracket 9 receives a support element 15 of each support segment 2 immovably, whereas the adjacent U-shaped recess 14 of the same support bracket 9 receives a support element 16 of the adjacent support segment 2 to enable thermal expansion with play 18.

Wie aus Fig. 1 ersichtlich, liegen die Tragelemente 16, welche in diesem Fall als Gleitsteine ausgebildet sind, etwa mittig in der Ausnehmung 14, so daß jeweils ein Spiel 18 in Längsrichtung eines Stützsegmentes 2 vor und hinter dem Tragelement 16 vorhanden ist.As can be seen from FIG. 1, the support elements 16, which in this case are designed as sliding blocks, are located approximately in the center of the recess 14, so that there is play 18 in the longitudinal direction of a support segment 2 in front of and behind the support element 16.

Um einen Rollenversatz zwischen benachbarten Stützsegmenten 2 bei Auftreten von Wärmedehnungen zu verhindern, ist das Spiel 18 und somit der Grund der Ausnehmung 14 parallel zur Strangführungsbahn 17 an der Übergangsstelle 19 von einem Stützsegment 2 zum benachbarten Stützsegment 2 gerichtet.In order to prevent a roll misalignment between adjacent support segments 2 when thermal expansions occur, the play 18 and thus the bottom of the recess 14 is directed parallel to the strand guide track 17 at the transition point 19 from a support segment 2 to the adjacent support segment 2.

Zum Fixieren der Stützsegmente 2 an den Längsträgern 3, 4 dienen Spanneinrichtungen 20. Diese Spanneinrichtungen werden von Spannschrauben gebildet, die einerseits die Längsträger 3, 4 verbindende und die Wangen 8 sowie die Längsträger 3, 4 gegeneinander spannende Bolzen 21 und andererseits an den Stützsegmenten 2 angeschweißte Laschen 22 durchsetzen.For fixing the support segments 2 to the side members 3, 4 serve clamping devices 20. These clamping devices are formed by clamping screws which on the one hand connect the longitudinal beams 3, 4 and the cheeks 8 and the longitudinal beams 3, 4 mutually clamping bolts 21 and on the other hand tabs 22 welded to the support segments 2.

Die der bogenförmigen Strangführung 1 benachbarten Stützsegmente der Biegezone 23 bzw. der Richtzone 24 weisen ebenfalls Tragelemente 15, 16 auf, die in die Ausnehmungen 13, 14 der an den Enden der bogenförmigen Längsträger 3, 4 angeordneten Traglaschen 9 eingreifen, wobei wiederum das untere Tragelement 16 der Biegezone 23 als Gleitstein ausgebildet ist und in der Ausnehmung 14 in Richtung der Strangführungsbahn 17 verschiebbar ist. Die Ausnehmung 14 ist in diesem Fall parallel zur Strangführungsbahn 17 gerichtet und zur Kokille hin offen.The support segments of the bending zone 23 and the straightening zone 24 adjacent to the arcuate strand guide 1 likewise have support elements 15, 16 which engage in the recesses 13, 14 of the support tabs 9 arranged at the ends of the arcuate longitudinal supports 3, 4, again the lower support element 16 of the bending zone 23 is designed as a sliding block and is displaceable in the recess 14 in the direction of the strand guide track 17. In this case, the recess 14 is directed parallel to the strand guide track 17 and is open towards the mold.

Die oben beschriebene Strangführung 1 läßt sich mit hoher Genauigkeit ohne großen Aufwand fertigen, indem die Bohrungen für die Paßbolzen 11 in den Längsträgern 3, 4 auf einem Koordinatenbohrwerk hergestellt werden. Die Fertigung der Traglaschen 9 gestaltet sich ebenso einfach.The strand guide 1 described above can be manufactured with great accuracy without great effort by making the bores for the fitting bolts 11 in the side members 3, 4 on a coordinate boring machine. The production of the support straps 9 is just as easy.

Bei einer Generalüberholung der Anlage können nach Lösen der Spannschrauben 20 die Stützsegmente 2 und nach Entfernen der Paßbolzen 11 die Traglaschen 9 ausgebaut werden, welche Teile somit in der Werkstatt in einfacher Weise nachbearbeitet werden können. Die sperrigen Längsträger 3, 4 können in der Anlage verbleiben und müssen nicht nachbearbeitet werden.In a general overhaul of the system, after loosening the clamping screws 20, the support segments 2 and after removing the dowel pins 11, the support brackets 9 can be removed, which parts can thus be easily reworked in the workshop. The bulky side members 3, 4 can remain in the system and do not have to be reworked.

Beim Wiedereinbau der Traglaschen 9 und der Stützsegmente 2 können aufwendige Ausrichtarbeiten auf ein Minimum reduziert werden, da die Traglaschen 9 durch die Paßbolzen 11 automatisch wieder die ursprüngliche Position einnehmen.When reinstalling the support straps 9 and the support segments 2, complex alignment work can be reduced to a minimum, since the support straps 9 are automatically returned to their original position by the fitting bolts 11 take in.

Wie aus Fig. 1 ersichtlich, lassen sich die Traglaschen auch mit Vorteil im horizontalen geradlinigen Teil der Strangführung 1 vorsehen, wobei die eine geradlinige Rollenbahn bildenden benachbarten Stützsegmente 2′ über die als Bolzen ausgebildeten Tragelemente 15′, 16′ über Traglaschen 9′ an einem geradlinigen Längsträger 3′ befestigt sind. Die Montage der Traglaschen 9′ ist hier ebenfalls über Paßbolzen 11, die mit ihrer Achse in der neutralen Faser 10′ des Längsträgers 3′ liegen, bewerkstelligt.As can be seen from Fig. 1, the support straps can also advantageously be provided in the horizontal rectilinear part of the strand guide 1, the adjacent support segments 2 'forming a rectilinear roller conveyor via the support elements 15', 16 'designed as bolts on support straps 9' on one rectilinear side members 3 'are attached. The mounting of the brackets 9 'is also accomplished here via dowel bolts 11, which have their axis in the neutral fiber 10' of the side member 3 '.

Die Erfindung beschränkt sich nicht auf das dargestellte Ausführungsbeispiel, sondern sie kann in verschiedener Hinsicht modifiziert werden. So kann z.B. anstelle der Spannschrauben 20 eine Keilverbindung vorgesehen werden. Ebenso ist es möglich, die beiden Längsträger 3, 4 durch Querträger zu einem einteiligen starren rahmenartigen Längsträger zu verbinden.The invention is not limited to the exemplary embodiment shown, but can be modified in various ways. For example, a wedge connection can be provided instead of the clamping screws 20. It is also possible to connect the two side members 3, 4 to a one-piece rigid frame-like side member by cross members.

Claims (3)

1. Strangführung (1), insbesondere für eine Stahlbrammenstranggießanlage, mit einer Mehrzahl von Rollen (12) tragenden Stützsegmenten (2, 2′), wobei mehrere Stützsegmente (2, 2′) an einem in Längsrichtung einstückigen Längsträger (3, 4, 3′), insbesondere einem bogenförmig gestalteten Längsträger (3, 4), befestigt sind und jeweils zwei benachbarte Stützsegmente (2, 2′) mittels an ihren Enden angeordneter Tragelemente (15, 16, 15′, 16′) gemeinsam an einer am Längsträger (3, 4, 3′) abgestützten Traglasche (9, 9′) gelagert sind, dadurch gekennzeichnet, daß jede Traglasche (9, 9′) mittels zweier zueinander paralleler Paßbolzen (11) am Längsträger (3, 4, 3′) starr befestigt ist, wobei die Paßbolzen (11) sämtlicher Traglaschen (9, 9′) etwa in der neutralen Faser (10, 10′) des Längsträgers (3, 4) liegen und jedes Stützsegment (2) gegen den Längsträger (3, 4, 3′) mittels einer Spanneinrichtung (20) spannbar ist.1. strand guide (1), in particular for a steel slab caster, with a plurality of rollers (12) supporting support segments (2, 2 '), several support segments (2, 2') on a longitudinally integral longitudinal member (3, 4, 3rd '), In particular an arc-shaped side member (3, 4), are attached and two adjacent support segments (2, 2') by means of end elements arranged at their ends (15, 16, 15 ', 16') together on one of the side members ( 3, 4, 3 ') supported support bracket (9, 9') are mounted, characterized in that each support bracket (9, 9 ') by means of two parallel fitting bolts (11) rigidly attached to the side member (3, 4, 3') is, the dowel pins (11) of all the support straps (9, 9 ') lie approximately in the neutral fiber (10, 10') of the side member (3, 4) and each support segment (2) against the side member (3, 4, 3 ') Can be tensioned by means of a tensioning device (20). 2. Strangführung nach Anspruch 1, dadurch gekennzeichnet, daß jede Traglasche (9, 9′) eine das Tragelement (15, 15′) eines Stützsegmentes (2, 2′) unbeweglich aufnehmende Ausnehmung (13) und eine das Tragelement (16, 16′) des benachbarten Stützsegmentes (2, 2′), welches vorzugsweise als Gleitstein (16, 16′) ausgebildet ist, mit Spiel (18) aufnehmende Ausnehmung (14) aufweist, wobei das Spiel (18) parallel zur Strangführungsbahn (17) an der Übergangsstelle (19) von dem einen Stützsegment (2, 2′) zum benachbarten Stützsegment (2, 2′) gerichtet ist.2. strand guide according to claim 1, characterized in that each support bracket (9, 9 ') a the support element (15, 15') of a support segment (2, 2 ') immovably receiving recess (13) and one of the support element (16, 16th ') Of the adjacent support segment (2, 2'), which is preferably designed as a sliding block (16, 16 '), with clearance (18) receiving recess (14), the clearance (18) parallel to the strand guide track (17) the transition point (19) from the one support segment (2, 2 ') to the adjacent support segment (2, 2') is directed. 3. Strangführung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß in die an einem Ende des bogenförmigen Längsträgers (3, 4) vorgesehenen Traglaschen (9) ein dem bogenförmigen Strangführungsteil (1) benachbartes Stützsegment, wie ein Stützsegment der Biegezone (23) und/oder der Richtzone (24), eingreift.3. strand guide according to claim 1 or 2, characterized in that provided at one end of the arcuate side member (3, 4) Support tabs (9) engages a support segment adjacent to the arcuate strand guide part (1), such as a support segment of the bending zone (23) and / or the straightening zone (24).
EP19860890295 1985-11-14 1986-11-03 Strand guide Expired - Lifetime EP0222732B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3324/85 1985-11-14
AT0332485A AT383525B (en) 1985-11-14 1985-11-14 STRING LEADERSHIP

Publications (3)

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EP0222732A2 true EP0222732A2 (en) 1987-05-20
EP0222732A3 EP0222732A3 (en) 1988-11-30
EP0222732B1 EP0222732B1 (en) 1990-04-25

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EP19860890295 Expired - Lifetime EP0222732B1 (en) 1985-11-14 1986-11-03 Strand guide

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EP (1) EP0222732B1 (en)
JP (1) JPH0741387B2 (en)
AT (1) AT383525B (en)
DE (1) DE3670585D1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997041984A1 (en) * 1996-05-08 1997-11-13 Voest-Alpine Industrieanlagenbau Gmbh Billet-guiding system for a continuous casting plant
CN113059133A (en) * 2021-03-19 2021-07-02 中国二十二冶集团有限公司 Control method for mounting precision of banana beam of continuous casting machine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4034141C1 (en) * 1990-10-26 1992-01-02 Voest-Alpine Industrieanlagenbau Ges.M.B.H., Linz, At Guide for continuous steel casting - comprises supporting segments with rollers clamped by nuts and bolts to one-piece curved supporting frame
DE19703811C2 (en) * 1997-01-27 1999-02-18 Mannesmann Ag Strand guidance, in particular for a slab caster
CN107962158A (en) * 2017-12-28 2018-04-27 黑龙江建龙钢铁有限公司 A kind of billet continuous casting arc section apparatus for being used to make steel
CN113649534B (en) * 2021-07-09 2022-09-09 中国冶金科工股份有限公司 Slab continuous casting sector section space positioning measurement method
CN114160767B (en) * 2021-11-19 2023-08-22 上海二十冶建设有限公司 Arrangement method for confirming installation datum line of continuous casting equipment by adopting traversal method

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GB1157531A (en) * 1966-03-15 1969-07-09 Ural Zd Tyazhelogo Mash Im S O Roller Zone in the Secondary Cooling Area in Continuous Casting Plants Provided With a Curved Mould.
CH597944A5 (en) * 1976-03-05 1978-04-14 Concast Ag Continuous casting plant for steel
FR2447764A1 (en) * 1979-02-05 1980-08-29 Fives Cail Babcock Continuous casting plant - where curved billet guide track is formed by segments located on pivot rockers, so track is self-aligning
EP0082744A1 (en) * 1981-12-01 1983-06-29 Clecim Sa Continuous casting machine for metals, especially a multi-strand casting machine

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JPS60170563A (en) * 1984-02-10 1985-09-04 Sumitomo Heavy Ind Ltd Continuous casting machine

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
GB1157531A (en) * 1966-03-15 1969-07-09 Ural Zd Tyazhelogo Mash Im S O Roller Zone in the Secondary Cooling Area in Continuous Casting Plants Provided With a Curved Mould.
CH597944A5 (en) * 1976-03-05 1978-04-14 Concast Ag Continuous casting plant for steel
FR2447764A1 (en) * 1979-02-05 1980-08-29 Fives Cail Babcock Continuous casting plant - where curved billet guide track is formed by segments located on pivot rockers, so track is self-aligning
EP0082744A1 (en) * 1981-12-01 1983-06-29 Clecim Sa Continuous casting machine for metals, especially a multi-strand casting machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997041984A1 (en) * 1996-05-08 1997-11-13 Voest-Alpine Industrieanlagenbau Gmbh Billet-guiding system for a continuous casting plant
CN113059133A (en) * 2021-03-19 2021-07-02 中国二十二冶集团有限公司 Control method for mounting precision of banana beam of continuous casting machine

Also Published As

Publication number Publication date
ATA332485A (en) 1986-12-15
JPH0741387B2 (en) 1995-05-10
AT383525B (en) 1987-07-10
JPS62114751A (en) 1987-05-26
EP0222732B1 (en) 1990-04-25
DE3670585D1 (en) 1990-05-31
EP0222732A3 (en) 1988-11-30

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