EP0073184B1 - Plate mould of a continuous casting plant - Google Patents

Plate mould of a continuous casting plant Download PDF

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Publication number
EP0073184B1
EP0073184B1 EP82890104A EP82890104A EP0073184B1 EP 0073184 B1 EP0073184 B1 EP 0073184B1 EP 82890104 A EP82890104 A EP 82890104A EP 82890104 A EP82890104 A EP 82890104A EP 0073184 B1 EP0073184 B1 EP 0073184B1
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EP
European Patent Office
Prior art keywords
mould
coupling
adjustment
mold
lifting table
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.)
Expired
Application number
EP82890104A
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German (de)
French (fr)
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EP0073184A1 (en
Inventor
Heinrich Dipl.-Ing. Thöne
Reinhard Hargassner
Gottfried Deibl
Günter Dipl.-Ing. Holleis
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Voestalpine AG
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Voestalpine AG
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Priority claimed from AT365881A external-priority patent/AT370652B/en
Priority claimed from AT205282A external-priority patent/AT372633B/en
Application filed by Voestalpine AG filed Critical Voestalpine AG
Publication of EP0073184A1 publication Critical patent/EP0073184A1/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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/05—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds into moulds having adjustable walls

Definitions

  • the invention relates to a plate mold of a continuous casting plant, in particular for the continuous casting of steel slabs, with a supporting frame mounted on an oscillating mold lifting table and supported on it, the walls defining the mold cavity, at least one of the side walls being adjustable transversely to the mold axis for changing the format of the strand cross section by means of an adjustment drive.
  • an adjusting device which usually consists of an adjusting gear and an adjusting drive, is arranged on the support frame for the purpose of changing the format.
  • the invention aims at avoiding this disadvantage and has as its object to create a plate mold of the type described in the introduction, the use of which is mechanical engineering and the investment for a continuous casting system is significantly less than when using known plate molds.
  • the adjustment drive is arranged on a stationary support frame adjacent to the mold lifting table or on the mold lifting table and is connected to the adjustable side wall via a coupling or a clamp connection.
  • the coupling is provided between an adjusting gear arranged on the support frame and driven by the adjusting drive and the adjusting drive.
  • the clamping connection is arranged between the adjustable side wall and an adjustment gear arranged on the mold lifting table, as a result of which not only the adjustment drive but also the adjustment gear can be used for all supporting frames to be used in a continuous casting installation.
  • a clutch in particular a clutch that enables angular deflections, such as a toothed clutch, is preferably provided as the clutch.
  • the drive shaft that can be switched on and off by the clutch is designed as a cardan shaft.
  • the shaft connecting the adjustment drive to the adjustment gear is adjustable in length according to a preferred embodiment.
  • the adjustment drive and the adjustment mechanism on the mold lifting table are advantageously slidably mounted for setting different strand thicknesses.
  • FIGS. 1 to 3 showing a first exemplary embodiment
  • FIGS. 4 to 8 showing a second exemplary embodiment
  • FIGS. 9 and 10 showing a third embodiment in a schematic representation
  • Fig. 1 is a partially sectioned plan view of a mold
  • Fig. 2 is a section along the line II-II of Fig. 1.
  • Fig. 3 shows a detail of Fig. 1 in line along the line III-III of Fig. 1 Sectional view on a larger scale.
  • FIG. 4 is an illustration analogous to FIG. 1 of a further embodiment.
  • Fig. 5 shows a section along the line VV of Fig. 4, the Fig.
  • FIG. 6 and 7 views in the direction of arrows VI of Fig. 5 and VII of Fig. 6.
  • Fig. 8 is a detail of the fixation of the adjustment drive shown.
  • FIG. 9 is a representation of a further embodiment analogous to FIG. 1,
  • FIG. 10 is a view in the direction of arrow X of FIG. 9.
  • Broad sides 3 and 4 of a slab mold are arranged in a support frame 1 of a mold 2. These mold plates 3 and 4 are adjustable by hydraulic devices 5 and 6. Narrow sides 7 are arranged between the mold broad sides 3 and 4.
  • the support frame 1 of the mold carries on its outside brackets 8, 9 with which it rests on the frame-shaped, vertically oscillating mold lifting table 10.
  • the support frame 1 is fastened to the mold lift table by means of wedges 11, 12 and vertical bolts 13, 14 attached to the mold lift table 10.
  • the supporting frame 1 is displaceable and adjustable relative to the mold lifting table 10 by known devices. To ensure this adjustability, the bolts protrude 13 and 14 the consoles 8, 9 with a game 15.
  • strips 16, 17 are arranged, which cooperate with rollers (not shown) arranged on the frame of the continuous casting system and serve to guide the oscillating mold lifting table 10 in the continuous casting system.
  • Two threaded spindles 18, 19 are rotatably connected to each mold narrow side 7. These threaded spindles 18, 19 project through the support frame 1 and the mold lifting table.
  • the threaded spindles 18 are each surrounded by a nut 20 which is rotatably but axially immovable in a housing 21 flanged to the support frame 1.
  • the nut 20 is connected to a worm wheel 22.
  • the worm wheel 22 can be driven by a worm 23, the shaft 24 of which is rotatably and axially immovably mounted in a housing 21.
  • the threaded spindles 18 and 19 are protected against contamination by suitable means (not shown) (such as bellows, etc.).
  • suitable means such as bellows, etc.
  • the gear housing 21 is also sealed against the ingress of dirt and oil leakage.
  • a vertical shaft 25 is provided on the mold lifting table 10, into which a housing 26 can be inserted.
  • This housing contains the adjustment drives for the mold narrow sides.
  • Each adjustment drive has a motor 27, a spur gear 28, an output shaft 29 and a clutch shaft 30.
  • the coupling shaft 30 is connected to the worm shaft 24 via the coupling 31.
  • the structure of the coupling shaft 30 is shown in FIG. 3.
  • the output shaft 29 is connected to a clutch body 32.
  • This coupling body is equipped with an internal toothing 33, which is in engagement with the external toothing 34 of the pinion 35.
  • the pinion is connected to a shaft 36.
  • This shaft is surrounded by a sleeve 37.
  • a spring 38 prevents rotation of the sleeve 37 with respect to the shaft 36.
  • the sleeve is axially displaceable with respect to the shaft by means of a switching ring 39 mounted on the sleeve.
  • the clutch is disengaged and engaged by a pressure medium cylinder 41 articulated on the eye 40 of the shift ring.
  • the sleeve 37 has an external toothing 42 at its end. This external toothing 42 engages with an internal toothing 43 of the coupling body 44.
  • the teeth 33, 34 and 42, 43 are designed so that misalignments or displacements of the coupling body 32, 44 relative to the pinion 35 or the sleeve 37 are possible.
  • the spaces 45 in which the toothings 42, 43 and 33, 34 are provided are filled with 01 and closed with a seal 46.
  • a bellows 48 or sealing rings 49 are provided to protect the shaft 36 and the switching ring bearing 47.
  • the coupling body 44 carries a further internal toothing 50 which is in engagement with an external toothing 51 at the end of the worm shaft 24.
  • the coupling body 44 and the worm shaft 24 are each provided with a conical surface 52, 53 so that the coupling 31 can be engaged.
  • a link plate 54 limits the angular displacement of the coupling shaft 30.
  • Fig. 3 the clutch 31 is drawn in the engaged state.
  • the piston rod 55 of the pressure medium cylinder 41 is fully extended; the sleeve 37 is (in Figure 3) in its extreme right position.
  • the piston rod 55 is retracted by actuating the pressure medium cylinder 41 and thus the sleeve 37 is moved to the left.
  • the external toothing 51 of the worm shaft 24 and the internal toothing 50 of the coupling body 44 disengage.
  • the housing 26 can be lifted out of the shaft 25 of the mold lifting table 10 with the aid of the crane eye 57.
  • adjustment device 58 - is arranged on the mold lifting table 10, the adjustment spindles 59 with the narrow side walls 7 of the plate mold are connected by means of a clamp connection 60.
  • the adjusting device 58 can be moved on rails 61 transversely to the broad sides 3, 4 of the mold.
  • a motor 62 is used to move this adjusting device 58 along the rails 61 in order to enable different cross-sectional formats of the mold cavity, i. H. to be able to use narrow sides 7 of different widths.
  • the adjusting device 58 can be fixed on the mold lifting table 10 by means of a pressure medium cylinder 64. It is fixed by the piston 66 of this pressure medium cylinder 64 holding down a flange 65 of the adjusting device 58.
  • the adjusting spindles 59 of the narrow side walls have ball heads 67 which center themselves in conical recesses 68 of the narrow side walls 7.
  • a pressure medium cylinder 69 By means of a pressure medium cylinder 69, the ball heads 67 can be pressed into the recesses 68 via coupling plates 71 by means of a two-armed lever 70, so that the adjusting spindles 59 are fixed to the narrow side walls 7 without play.
  • This pressure cylinder 69 is double-acting.
  • the coupling plates 71 are guided in grooves of guide strips 72.
  • FIGS. 9 and 10 shows a mold 1, in which the adjusting drive 27 is arranged on a stationary support frame 73 of the continuous casting installation, etc. on a support of this support frame 73, which is closely adjacent to the mold lifting table 10.
  • a flange plate 76 equipped with centering strips 75 is provided on a mounting bracket 74 mounted on the support frame 73, on which a counter-flange plate 79 can be fastened by means of a clamp-like tensioning device 77, 78, on which the motor 27 and the intermediate gear 28 of the adjustment drive are mounted.
  • parts that are designed analogously to the parts of the embodiment shown in FIGS. 1 to 3 are provided with the same reference numerals.
  • the drive shafts of the embodiment of the adjusting drives shown in FIGS. 1 to 3 and the worm shafts of the adjusting gears can be provided with a vertical axis, so that the coupling process between the output shaft of the actuator and the worm shaft of the adjusting gears is only achieved by lowering the supporting frame together with the adjusting gear is accomplished on the mold lifting table.
  • the clutch shown in Figures 1 to 3 could also be replaced by a clutch of another type; for example, it is possible to use a magnetic coupling.
  • a clutch of another type for example, it is possible to use a magnetic coupling.
  • an articulated shaft could advantageously also be provided, the couplings no longer having to allow articulation. All the adjustment mechanisms of the mold can also be driven by a single drive motor.

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

Description

Die Erfindung betrifft eine Plattenkokille einer Stranggießanlage, insbesondere zum Stranggießen von Stahlbrammen, mit einem auf einem oszillierenden Kokillenhubtisch gelagerten Tragrahmen und daran abgestützten, den Kokillenhohlraum begrenzenden Wänden, wobei mindestens eine der Seitenwände quer zur Kokillenachse zur Formatänderung des Strangquerschnittes mittels eines Verstellantriebes verstellbar ist.The invention relates to a plate mold of a continuous casting plant, in particular for the continuous casting of steel slabs, with a supporting frame mounted on an oscillating mold lifting table and supported on it, the walls defining the mold cavity, at least one of the side walls being adjustable transversely to the mold axis for changing the format of the strand cross section by means of an adjustment drive.

Bei Plattenkokillen dieser Art (DE-B-1 254 828 bzw. AT-B-233187 und DE-A-2 415 224) ist zum Zweck der Formatänderung eine Verstelleinrichtung, welche meist aus einem Verstellgetriebe und einem Verstellantrieb besteht, am Tragrahmen angeordnet.In the case of plate molds of this type (DE-B-1 254 828 or AT-B-233187 and DE-A-2 415 224), an adjusting device, which usually consists of an adjusting gear and an adjusting drive, is arranged on the support frame for the purpose of changing the format.

Da für eine Stranggießanlage stets mehrere Tragrahmen mit darin eingesetzten Seitenwänden zur Verfügung stehen müssen, um im Störungsfall an einer in der Anlage eingebauten Kokille keine Reparaturarbeiten bzw. keine Wartung durchführen zu müssen, sondern den Tragrahmen mit den Seitenwänden zeitsparend gegen einen anderen intakten austauschen zu können, ist es bei herkömmlichen Kokillen erforderlich, für jeden Tragrahmen Verstellantriebe für die Seitenwandverstellung vorzusehen. Der einen Teil der Kokille bildende Kokillenhubtisch verbleibt bei einem Austausch des die Seitenwände stützenden Tragrahmens in der Stranggießanlage.Since there must always be several support frames with side walls inserted in them for a continuous caster, so that in the event of a fault on a mold installed in the system, there is no need to carry out repair work or maintenance, but rather to be able to swap the support frame with the side walls for another intact one , it is necessary with conventional molds to provide adjustment drives for the side wall adjustment for each support frame. The mold lifting table forming part of the mold remains in the continuous casting installation when the support frame supporting the side walls is replaced.

Die Erfindung bezweckt die Vermeidung dieses Nachteiles und stellt sich die Aufgabe, eine Plattenkokille der eingangs bezeichneten Art zu schaffen, bei deren Verwendung der maschinenbauliche Aufwand und der Investitionsaufwand für eine Stranggießanlage wesentlich geringer ist als bei Verwendung bekannter Plattenkokillen.The invention aims at avoiding this disadvantage and has as its object to create a plate mold of the type described in the introduction, the use of which is mechanical engineering and the investment for a continuous casting system is significantly less than when using known plate molds.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Verstellantrieb an einem dem Kokillenhubtisch benachbarten ortsfesten Stützgerüst oder am Kokillenhubtisch angeordnet ist und mit der verstellbaren Seitenwand über eine Kupplung oder eine Klemmverbindung in Verbindung steht. Durch Anordnung des Verstellantriebes am Stützgerüst oder am Kokillenhubtisch ist der Verstellantrieb für sämtliche Tragrahmen; also die in der Anlage eingebaute Kokille sowie für die zum Austausch parat stehenden Tragrahmen (nach Einsetzen derselben in die Anlage), verwendbar, so daß eine mit der erfindungsgemäßen Plattenkokille ausgestattete Stranggießanlage einen wesentlich geringeren Investitionsaufwand erfordert.This object is achieved in that the adjustment drive is arranged on a stationary support frame adjacent to the mold lifting table or on the mold lifting table and is connected to the adjustable side wall via a coupling or a clamp connection. By arranging the adjustment drive on the support frame or on the mold lifting table, the adjustment drive can be used for all support frames; Thus, the mold installed in the system and for the support frames ready for replacement (after inserting the same into the system) can be used, so that a continuous casting system equipped with the plate mold according to the invention requires a significantly lower investment.

Gemäß einer bevorzugten Ausführungsform ist die Kupplung zwischen einem am Tragrahmen angeordneten vom Verstellantrieb getriebenen Verstellgetriebe und dem Verstellantrieb vorgesehen.According to a preferred embodiment, the coupling is provided between an adjusting gear arranged on the support frame and driven by the adjusting drive and the adjusting drive.

Es ist von Vorteil, wenn nach einer anderen Ausführungsform die Klemmverbindung zwischen der verstellbaren Seitenwand und einem am Kokillenhubtisch angeordneten Verstellgetriebe angeordnet ist, wodurch nicht nur der Verstellantrieb, sondern auch das Verstellgetriebe für sämtliche in einer Stranggießanlage zu verwendende Tragrahmen Verwendung finden kann.It is advantageous if, according to another embodiment, the clamping connection is arranged between the adjustable side wall and an adjustment gear arranged on the mold lifting table, as a result of which not only the adjustment drive but also the adjustment gear can be used for all supporting frames to be used in a continuous casting installation.

Vorzugsweise ist als Kupplung eine Schaltkupplung, insbesondere eine Winkelauslenkungen ermöglichende Kupplung, wie eine Zahnkupplung, vorgesehen.A clutch, in particular a clutch that enables angular deflections, such as a toothed clutch, is preferably provided as the clutch.

Gemäß einer weiteren bevorzugten Ausführungsform ist die durch die Kupplung ein- und ausschaltbare Antriebswelle als Gelenkwelle ausgebildet.According to a further preferred embodiment, the drive shaft that can be switched on and off by the clutch is designed as a cardan shaft.

Um den Einsatz verschieden breiter Schmalseiten für die Kokille zu ermöglichen, ist gemäß einer bevorzugten Ausführungsform die den Verstellantrieb mit dem Verstellgetriebe verbindende Welle längenverstellbar.In order to enable the use of narrow sides of different widths for the mold, the shaft connecting the adjustment drive to the adjustment gear is adjustable in length according to a preferred embodiment.

Gemäß einer anderen Ausführungsform, bei der auch das Verstellgetriebe am Kokillenhubtisch angeordnet ist, sind vorteilhaft zur Einstellung verschiedener Strangdicken der Verstellantrieb und das Verstellgetriebe am Kokillenhubtisch verschiebbar montiert.According to another embodiment, in which the adjustment mechanism is also arranged on the mold lifting table, the adjustment drive and the adjustment mechanism on the mold lifting table are advantageously slidably mounted for setting different strand thicknesses.

Die Erfindung ist nachfolgend anhand dreier Ausführungsbeispiele näher erläutert, wobei die Fig. 1 bis 3 ein erstes Ausführungsbeispiel, die Fig. 4 bis 8 ein zweites Ausführungsbeispiel und die Fig. 9 und 10 eine dritte Ausführungsform in schematischer Darstellung zeigen. Fig. 1 ist eine teilweise geschnittene Draufsicht auf eine Kokille, Fig. 2 ein Schnitt gemäß der Linie II-II der Fig. 1. Fig. 3 zeigt ein Detail der Fig. 1 in gemäß der Linie III-III der Fig. 1 gelegter Schnittdarstellung in größerem Maßstab. Fig. 4 ist eine Darstellung analog zu Fig. 1 einer weiteren Ausführungsform. Fig. 5 zeigt einen Schnitt gemäß der Linie V-V der Fig. 4, die Fig. 6 und 7 Ansichten in Richtung der Pfeile VI der Fig. 5 bzw. VII der Fig. 6. In Fig. 8 ist ein Detail der Fixierung des Verstellantriebes dargestellt. Die Fig. 9 ist eine zur Fig. 1 analoge Darstellung einer weiteren Ausführungsform, Fig. 10 ist eine Ansicht in Richtung des Pfeiles X der Fig. 9.The invention is explained in more detail below with the aid of three exemplary embodiments, with FIGS. 1 to 3 showing a first exemplary embodiment, FIGS. 4 to 8 showing a second exemplary embodiment and FIGS. 9 and 10 showing a third embodiment in a schematic representation. Fig. 1 is a partially sectioned plan view of a mold, Fig. 2 is a section along the line II-II of Fig. 1. Fig. 3 shows a detail of Fig. 1 in line along the line III-III of Fig. 1 Sectional view on a larger scale. FIG. 4 is an illustration analogous to FIG. 1 of a further embodiment. Fig. 5 shows a section along the line VV of Fig. 4, the Fig. 6 and 7 views in the direction of arrows VI of Fig. 5 and VII of Fig. 6. In Fig. 8 is a detail of the fixation of the adjustment drive shown. FIG. 9 is a representation of a further embodiment analogous to FIG. 1, FIG. 10 is a view in the direction of arrow X of FIG. 9.

In einem Tragrahmen 1 einer Kokille 2 sind Breitseiten 3 und 4 einer Brammenkokille angeordnet. Diese Kokillenplatten 3 und 4 sind durch Hydraulikeinrichtungen 5 und 6 verstellbar. Zwischen den Kokillenbreitseiten 3 und 4 sind Schmalseiten 7 angeordnet. Der Tragrahmen 1 der Kokille trägt an seiner Außenseite Konsolen 8, 9, mit denen er auf dem rahmenförmigen, vertikal oszillierenden Kokillenhubtisch 10 aufliegt. Der Tragrahmen 1 ist mit Hilfe von Keilen 11, 12 und am Kokillenhubtisch 10 angebrachten vertikalen Bolzen 13, 14 am Kokillenhubtisch befestigt. Der Tragrahmen 1 ist gegenüber dem Kokillenhubtisch 10 durch bekannte Einrichtungen verschiebbar und verstellbar. Damit diese Einstellbarkeit gegeben ist, durchragen die Bolzen 13 und 14 die Konsolen 8, 9 mit einem Spiel 15.Broad sides 3 and 4 of a slab mold are arranged in a support frame 1 of a mold 2. These mold plates 3 and 4 are adjustable by hydraulic devices 5 and 6. Narrow sides 7 are arranged between the mold broad sides 3 and 4. The support frame 1 of the mold carries on its outside brackets 8, 9 with which it rests on the frame-shaped, vertically oscillating mold lifting table 10. The support frame 1 is fastened to the mold lift table by means of wedges 11, 12 and vertical bolts 13, 14 attached to the mold lift table 10. The supporting frame 1 is displaceable and adjustable relative to the mold lifting table 10 by known devices. To ensure this adjustability, the bolts protrude 13 and 14 the consoles 8, 9 with a game 15.

An den Außenseiten des Kokillenhubtisches 10 sind Leisten 16,17 angeordnet, die mit am Gerüst der Stranggießanlage angeordneten, nicht dargestellten Rollen zusammenwirken und zur Führung des oszillierenden Kokillenhubtisches 10 in der Stranggießanlage dienen.On the outer sides of the mold lifting table 10, strips 16, 17 are arranged, which cooperate with rollers (not shown) arranged on the frame of the continuous casting system and serve to guide the oscillating mold lifting table 10 in the continuous casting system.

Mit jeder Kokillenschmalseite 7 sind zwei Gewindespindeln 18, 19 drehfest verbunden. Diese Gewindespindeln 18, 19 durchragen den Tragrahmen 1 und den Kokillenhubtisch. Die Gewindespindeln 18 werden von je einer Mutter 20 umgeben, welche in einem am Tragrahmen 1 angeflanschten Gehäuse 21 drehbar, aber axial unverschiebbar gelagert ist. Die Mutter 20 ist mit einem Schneckenrad 22 verbunden. Das Schneckenrad 22 ist durch eine Schnecke 23, deren Welle 24 in einem Gehäuse 21 drehbar und axial unverschiebbar gelagert ist, antreibbar.Two threaded spindles 18, 19 are rotatably connected to each mold narrow side 7. These threaded spindles 18, 19 project through the support frame 1 and the mold lifting table. The threaded spindles 18 are each surrounded by a nut 20 which is rotatably but axially immovable in a housing 21 flanged to the support frame 1. The nut 20 is connected to a worm wheel 22. The worm wheel 22 can be driven by a worm 23, the shaft 24 of which is rotatably and axially immovably mounted in a housing 21.

Die Gewindespindeln 18 und 19 sind durch geeignete, nicht dargestellte Mittel (wie Bälge etc.) gegen Verschmutzung geschützt. Auch das Getriebegehäuse 21 ist gegen das Eindringen von Schmutz und Ölaustritt abgedichtet.The threaded spindles 18 and 19 are protected against contamination by suitable means (not shown) (such as bellows, etc.). The gear housing 21 is also sealed against the ingress of dirt and oil leakage.

Am Kokillenhubtisch 10 ist ein vertikaler Schacht 25 vorgesehen, in den ein Gehäuse 26 eingeschoben werden kann. Dieses Gehäuse beinhaltet die Verstellantriebe für die Kokillenschmalseiten. Jeder Verstellantrieb weist einen Motor 27, ein Stirnradgetriebe 28, eine Abtriebswelle 29 und eine Kupplungswelle 30 auf. Die Kupplungswelle 30 ist über die Kupplung 31 mit der Schneckenwelle 24 verbunden.A vertical shaft 25 is provided on the mold lifting table 10, into which a housing 26 can be inserted. This housing contains the adjustment drives for the mold narrow sides. Each adjustment drive has a motor 27, a spur gear 28, an output shaft 29 and a clutch shaft 30. The coupling shaft 30 is connected to the worm shaft 24 via the coupling 31.

Der Aufbau der Kupplungswelle 30 geht aus Fig. 3 hervor. Die Abtriebswelle 29 ist mit einem Kupplungskörper 32 verbunden. Dieser Kupplungskörper ist mit einer Innenverzahnung 33 ausgestattet, welche mit der Außenverzahnung 34 des Zahnritzels 35 in Eingriff steht. Das Zahnritzel ist mit einer Welle 36 verbunden. Diese Welle wird von einer Hülse 37 umgeben. Eine Feder 38 verhindert eine Verdrehung der Hülse 37 gegenüber der Welle 36. Die Hülse ist gegenüber der Welle durch einen auf der Hülse gelagerten Schaltring 39 axial verschiebbar. Durch einen am Auge 40 des Schaltringes angelenkten Druckmittelzylinder 41 wird das Aus- und Einrücken der Kupplung bewerkstelligt.The structure of the coupling shaft 30 is shown in FIG. 3. The output shaft 29 is connected to a clutch body 32. This coupling body is equipped with an internal toothing 33, which is in engagement with the external toothing 34 of the pinion 35. The pinion is connected to a shaft 36. This shaft is surrounded by a sleeve 37. A spring 38 prevents rotation of the sleeve 37 with respect to the shaft 36. The sleeve is axially displaceable with respect to the shaft by means of a switching ring 39 mounted on the sleeve. The clutch is disengaged and engaged by a pressure medium cylinder 41 articulated on the eye 40 of the shift ring.

Die Hülse 37 trägt an ihrem Ende eine Außenverzahnung 42. Diese Außenverzahnung 42 steht mit einer Innenverzahnung 43 des Kupplungskörpers 44 in Eingriff. Die Verzahnungen 33, 34 und 42, 43 sind so ausgelegt, daß Schiefstellungen bzw. Versetzungen der Kupplungskörper 32, 44 gegenüber dem Ritzel 35 bzw. der Hülse 37 möglich sind. Die Räume 45, in welchen die Verzahnungen 42, 43 und 33, 34 vorgesehen sind, sind mit 01 gefüllt und mit einer Dichtung 46 abgeschlossen. Zum Schutz der Welle 36 und der Schaltringlager 47 sind ein Faltenbalg 48 bzw. Dichtringe 49 vorgesehen.The sleeve 37 has an external toothing 42 at its end. This external toothing 42 engages with an internal toothing 43 of the coupling body 44. The teeth 33, 34 and 42, 43 are designed so that misalignments or displacements of the coupling body 32, 44 relative to the pinion 35 or the sleeve 37 are possible. The spaces 45 in which the toothings 42, 43 and 33, 34 are provided are filled with 01 and closed with a seal 46. A bellows 48 or sealing rings 49 are provided to protect the shaft 36 and the switching ring bearing 47.

Der Kupplungskörper 44 trägt eine weitere Innenverzahnung 50, die mit einer Außenverzahnung 51 am Ende der Schneckenwelle 24 in Eingriff steht. Der Kupplungskörper 44 und die Schneckenwelle 24 sind jeweils mit einer Kegelfläche 52, 53 versehen, damit das Einkuppeln der Kupplung 31 ermöglicht wird. Im ausgekuppelten Zustand begrenzt ein Kulissenblech 54 die Winkelverlagerung der Kupplungswelle 30.The coupling body 44 carries a further internal toothing 50 which is in engagement with an external toothing 51 at the end of the worm shaft 24. The coupling body 44 and the worm shaft 24 are each provided with a conical surface 52, 53 so that the coupling 31 can be engaged. In the disengaged state, a link plate 54 limits the angular displacement of the coupling shaft 30.

In Fig. 3 ist die Kupplung 31 in eingekuppeltem Zustand gezeichnet. In diesem Zustand ist die Kolbenstange 55 des Druckmittelzylinders 41 ganz ausgefahren ; die Hülse 37 befindet sich (in Fig.3) in ihrer äußerst rechten Stellung. Zum Zweck des Entkuppelns der Kupplung 31 wird durch Betätigen des Druckmittelzylinders 41 die Kolbenstange 55 eingezogen und damit die Hülse 37 nach links bewegt. Hierbei gelangen die Außenverzahnung 51 der Schneckenwelle 24 und die Innenverzahnung 50 des Kupplungskörpers 44 außer Eingriff. Nach diesem Ausrücken der Kupplungen 31 und dem Entfernen der Keile 11, 12 ist es möglich, den Tragrahmen 1 samt den Kokillenplatten 3, 4, 7 und den Verstellgetrieben 56 aus dem Kokillenhubtisch 10 der Stranggießanlage herauszuheben. Sollte es notwendig sein, am Stellantrieb Wartungsarbeiten durchzuführen, so kann das Gehäuse 26 mit Hilfe der Kranöse 57 aus dem Schacht 25 des Kokillenhubtisches 10 herausgehoben werden.In Fig. 3, the clutch 31 is drawn in the engaged state. In this state, the piston rod 55 of the pressure medium cylinder 41 is fully extended; the sleeve 37 is (in Figure 3) in its extreme right position. For the purpose of decoupling the clutch 31, the piston rod 55 is retracted by actuating the pressure medium cylinder 41 and thus the sleeve 37 is moved to the left. Here, the external toothing 51 of the worm shaft 24 and the internal toothing 50 of the coupling body 44 disengage. After disengaging the clutches 31 and removing the wedges 11, 12, it is possible to lift the support frame 1 together with the mold plates 3, 4, 7 and the adjustment gears 56 out of the mold lifting table 10 of the continuous casting system. Should it be necessary to carry out maintenance work on the actuator, the housing 26 can be lifted out of the shaft 25 of the mold lifting table 10 with the aid of the crane eye 57.

Bei der in den Fig. 4 bis 8 dargestellten Ausführungsform ist nicht nur der Verstellantrieb, sondern auch das Verstellgetriebe - beide sind in dem Block vereinigt und nachfolgend als Verstelleinrichtung 58 bezeichnet - am Kokillenhubtisch 10 angeordnet, wobei die Verstellspindeln 59 mit den Schmalseitenwänden 7 der Plattenkokille mittels einer Klemmverbindung 60 verbunden sind. Die Verstelleinrichtung 58 ist, wie aus Fig. 4 ersichtlich, auf Schienen 61 quer zu den Breitseiten 3, 4 der Kokille verfahrbar. Ein Motor 62 dient zum Verschieben dieser Verstelleinrichtung 58 entlang der Schienen 61, um verschiedene Querschnittsformate des Kokillenhohlraumes zu ermöglichen, d. h. unterschiedlich breite Schmalseiten 7 einsetzen zu können. Bei unterschiedlichen Dicken des Stranges verlagert sich die Mittelachse 63 der Kokillenschmalseiten infolge der als Festseite ausgebildeten Kokillenbreitseite 4. Mittels eines Druckmittelzylinders 64 läßt sich die Verstelleinrichtung 58 am Kokillenhubtisch 10 fixieren. Die Fixierung geschieht durch den einen Flansch 65 der Verstelleinrichtung 58 niederhaltenden Kolben 66 dieses Druckmittelzylinders 64.In the embodiment shown in FIGS. 4 to 8, not only the adjustment drive, but also the adjustment gear - both are combined in the block and hereinafter referred to as adjustment device 58 - is arranged on the mold lifting table 10, the adjustment spindles 59 with the narrow side walls 7 of the plate mold are connected by means of a clamp connection 60. As can be seen from FIG. 4, the adjusting device 58 can be moved on rails 61 transversely to the broad sides 3, 4 of the mold. A motor 62 is used to move this adjusting device 58 along the rails 61 in order to enable different cross-sectional formats of the mold cavity, i. H. to be able to use narrow sides 7 of different widths. With different thicknesses of the strand, the central axis 63 of the mold narrow sides is displaced as a result of the mold broad side 4 designed as a fixed side. The adjusting device 58 can be fixed on the mold lifting table 10 by means of a pressure medium cylinder 64. It is fixed by the piston 66 of this pressure medium cylinder 64 holding down a flange 65 of the adjusting device 58.

Die Verstellspindeln 59 der Schmalseitenwände weisen Kugelköpfe 67 auf, die sich in konischen Ausnehmungen 68 der Schmalseitenwände 7 von selbst zentrieren. Mittels eines Druckmittelzylinders 69 lassen sich über je einen zweiarmigen Hebel 70 die Kugelköpfe 67 über Kupplungsbleche 71 in die Ausnehmungen 68 einpressen, so daß die Verstellspindeln 59 an den Schmalseitenwänden 7 spielfrei fixiert sind. Dieser Druckmittelzylinder 69 ist doppelwirkend. Die Kupplungsbleche 71 sind in Nuten von Führungsleisten 72 verschiebbar geführt.The adjusting spindles 59 of the narrow side walls have ball heads 67 which center themselves in conical recesses 68 of the narrow side walls 7. By means of a pressure medium cylinder 69, the ball heads 67 can be pressed into the recesses 68 via coupling plates 71 by means of a two-armed lever 70, so that the adjusting spindles 59 are fixed to the narrow side walls 7 without play. This pressure cylinder 69 is double-acting. The coupling plates 71 are guided in grooves of guide strips 72.

Die in den Fig.9 und 10 dargestellte Ausführungsform zeigt eine Kokille 1, bei der der Verstellantrieb 27 an einem ortsfesten Stützgerüst 73 der Stranggießanlage angeordnet ist, u.zw. an einem Träger dieses Stützgerüstes 73, welcher dem Kokillenhubtisch 10 eng benachbart liegt. Zur lösbaren Befestigung des Verstellantriebes 27 ist an einer am Stützgerüst 73 montierten Befestigungskonsole 74 eine mit Zentrierleisten 75 ausgestattete Flanschplatte 76 vorgesehen, an der mittels einer klammerartigen Spanneinrichtung 77, 78 eine Gegenflanschplatte 79 befestigbar ist, an der der Motor 27 und das Zwischengetriebe 28 des Verstellantriebes montiert sind. Bei dieser Ausführungsform sind Teile, die analog zu den Teilen der in den Fig. 1 bis 3 dargestellten Ausführungsform gestaltet sind, mit gleichen Bezugszeichen versehen.The embodiment shown in FIGS. 9 and 10 shows a mold 1, in which the adjusting drive 27 is arranged on a stationary support frame 73 of the continuous casting installation, etc. on a support of this support frame 73, which is closely adjacent to the mold lifting table 10. For the releasable fastening of the adjustment drive 27, a flange plate 76 equipped with centering strips 75 is provided on a mounting bracket 74 mounted on the support frame 73, on which a counter-flange plate 79 can be fastened by means of a clamp-like tensioning device 77, 78, on which the motor 27 and the intermediate gear 28 of the adjustment drive are mounted. In this embodiment, parts that are designed analogously to the parts of the embodiment shown in FIGS. 1 to 3 are provided with the same reference numerals.

Die Erfindung beschränkt sich nicht auf die dargestellten Ausführungsbeispiele, sondern kann im Rahmen der Patentansprüche in verschiedener Weise modifiziert werden. Beispielsweise können die Antriebswellen der in den Fig. 1 bis 3 dargestellten Ausführungsform der Verstellantriebe und die Schneckenwellen der Verstellgetriebe mit vertikaler Achse vorgesehen werden, so daß der Kupplungsvorgang zwischen der Abtriebswelle des Stellantriebes und der Schneckenwelle des Verstellgetriebes bloß durch das Absenken des Tragrahmens samt dem Verstellgetriebe auf den Kokillenhubtisch bewerkstelligt wird.The invention is not limited to the exemplary embodiments shown, but can be modified in various ways within the scope of the patent claims. For example, the drive shafts of the embodiment of the adjusting drives shown in FIGS. 1 to 3 and the worm shafts of the adjusting gears can be provided with a vertical axis, so that the coupling process between the output shaft of the actuator and the worm shaft of the adjusting gears is only achieved by lowering the supporting frame together with the adjusting gear is accomplished on the mold lifting table.

Die in den Fig. 1 bis 3 dargestellte Kupplung könnte auch durch eine Kupplung anderer Bauart ersetzt sein ; es ist beispielsweise möglich, eine Magnetkupplung zu verwenden. Bei der im Ausführungsbeispiel der Fig..1 bis 3 vorgesehenen Kupplungswelle 30 könnte vorteilhaft auch eine Gelenkwelle vorgesehen sein, wobei die Kupplungen keine Gelenkigkeit mehr ermöglichen müssen. Sämtliche Verstellgetriebe der Kokille können auch durch einen einzigen Antriebsmotor angetrieben werden.The clutch shown in Figures 1 to 3 could also be replaced by a clutch of another type; for example, it is possible to use a magnetic coupling. In the coupling shaft 30 provided in the exemplary embodiment in FIGS. 1 to 3, an articulated shaft could advantageously also be provided, the couplings no longer having to allow articulation. All the adjustment mechanisms of the mold can also be driven by a single drive motor.

Es wäre bei der in den Fig. 9 und 10 dargestellten Ausführungsform auch möglich, nicht nur die Verstellantriebe 27, sondern auch die Verstellgetriebe 56 am ortsfesten Stützgerüst 73 anzuordnen.In the embodiment shown in FIGS. 9 and 10, it would also be possible to arrange not only the adjustment drives 27 but also the adjustment gears 56 on the stationary support frame 73.

Claims (7)

1. A plate mould of a continuous casting plant, in particular for continuously casting steel slabs, comprising a carrying frame (1) mounted on a reciprocating mould lifting table (10) and walls (3, 4, 7) delimiting the mould cavity supported thereon, at least one of which side walls (7) is adjustable by means of an adjustment drive (27, 58) transversely to the mould axis to change the format of the strand cross section, characterised in that the adjustment drive (27, 58) is arranged on a stationary supporting structure (73) neighbouring the mould lifting table or on the mould lifting table and communicates with the adjustable side wall (7) via a coupling (31) or a clamping connection (60).
2. A mould according to claim 1, characterised in that the coupling (31) is provided between an adjustment gear (56) mounted on the carrying frame (1) and driven by the adjustment drive, and the adjustment drive (27) (Figs. 1 to 3).
3. A mould according to claim 1, characterised in that the clamping connection (60) is arranged between the adjustable side wall (7) and an adjustment gear mounted on the mould fitting table (10) (Figs. 4 to 8).
4. A mould according to claim 1 or 2, characterised in that as the coupling a clutch coupling, in particular a coupling that allows for angular excursions, such as a jaw clutch coupling (31), is provided.
5. A mould according to claim 2 or 4, characterised in that the driving shaft to be turned on and off by the coupling is designed as an articulation shaft.
6. A mould according to claim 2, 4 or 5, characterised in that the shaft (36, 37) connecting the adjustment drive (27) with the adjustment gear (56) is adjustable in length.
7. A mould according to claim 3, characterised in that the adjustment drive and the adjustment gear are displaceably mounted on the mould lifting table (10).
EP82890104A 1981-08-21 1982-07-22 Plate mould of a continuous casting plant Expired EP0073184B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT3658/81 1981-08-21
AT365881A AT370652B (en) 1981-08-21 1981-08-21 PLATE CHOCOLATE FOR CONTINUOUS CASTING
AT205282A AT372633B (en) 1982-05-25 1982-05-25 PLATE CHOCOLATE OF A CONTINUOUS CASTING SYSTEM
AT2052/82 1982-05-25

Publications (2)

Publication Number Publication Date
EP0073184A1 EP0073184A1 (en) 1983-03-02
EP0073184B1 true EP0073184B1 (en) 1985-04-24

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EP82890104A Expired EP0073184B1 (en) 1981-08-21 1982-07-22 Plate mould of a continuous casting plant

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US (1) US4516622A (en)
EP (1) EP0073184B1 (en)
DE (1) DE3263265D1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3407294C2 (en) * 1984-02-29 1986-04-24 SMS Schloemann-Siemag AG, 4000 Düsseldorf Device for adjusting narrow mold side walls
US4660615A (en) * 1986-03-14 1987-04-28 Kabushiki Kaisha Kobe Seiko Sho Continuous casting mold assembly
US5201361A (en) * 1991-04-16 1993-04-13 Acutus Mold, Inc. Continuous casting in mold having heated end walls
AT400416B (en) * 1993-12-20 1995-12-27 Voest Alpine Ind Anlagen CONTINUOUS PLATE CHOCOLATE
AT400824B (en) * 1993-12-27 1996-03-25 Voest Alpine Ind Anlagen STRONG CHOCOLATE
US6056040A (en) * 1997-10-10 2000-05-02 Alcan International Limited Mould device with adjustable walls
US5911268A (en) * 1997-10-16 1999-06-15 Custom Systems, Inc. Oscillating mold table assembly
US6857464B2 (en) * 2002-09-19 2005-02-22 Hatch Associates Ltd. Adjustable casting mold
US20110308760A1 (en) * 2009-02-09 2011-12-22 Hisamune Tanaka Apparatus for production of metallic slab using electron beam, and process for production of metallic slab using the apparatus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1254828B (en) * 1962-05-29 1967-11-23 Concast Ag Plate mold for continuous casting
US3292216A (en) * 1963-06-25 1966-12-20 Concast Ag Adjustable mold for continuous casting installation
DE1608346C3 (en) * 1968-03-19 1974-11-07 Mannesmann Ag, 4000 Duesseldorf Adjustable continuous casting mold
CH544598A (en) * 1972-03-03 1973-11-30 Concast Ag Adjustable plate mold for continuous casting
CH558687A (en) * 1973-03-30 1975-02-14 Concast Ag PROCESS FOR CONTROLLING THE COOLING CAPACITY OF NARROW SIDE WALLS IN PLATE CHILLES DURING CONTINUOUS CASTING AND PLATE CHILLES FOR CARRYING OUT THE PROCESS.
FR2256789A1 (en) * 1974-01-08 1975-08-01 Fives Cail Babcock Adjusting the size of slab moulds for continuous casting - using gear box which also adjusts angle of mould wall
AT344929B (en) * 1975-11-24 1978-08-25 Voest Ag PLATE COLLAR FOR CONTINUOUS STEEL SLABS
DE2620751A1 (en) * 1976-05-11 1977-11-17 Kloeckner Werke Ag Continuous casting wide steel slabs - where narrow mould walls can be moved and their angle varied to provide mould taper
FR2426515A1 (en) * 1978-05-25 1979-12-21 Clesid Sa Adjusting width of slab mould in continuous casting plant - where narrow mould walls are mounted on jacks driven by threaded spindles actuated by synchro-controlled motors
AT364472B (en) * 1980-01-11 1981-10-27 Voest Alpine Ag DOUBLE CONTINUOUS CASTING SYSTEM

Also Published As

Publication number Publication date
US4516622A (en) 1985-05-14
DE3263265D1 (en) 1985-05-30
EP0073184A1 (en) 1983-03-02

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