EP0122550A1 - Driving device for casting rollers - Google Patents

Driving device for casting rollers Download PDF

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Publication number
EP0122550A1
EP0122550A1 EP84103773A EP84103773A EP0122550A1 EP 0122550 A1 EP0122550 A1 EP 0122550A1 EP 84103773 A EP84103773 A EP 84103773A EP 84103773 A EP84103773 A EP 84103773A EP 0122550 A1 EP0122550 A1 EP 0122550A1
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EP
European Patent Office
Prior art keywords
casting
roll
connection
geared motor
roll neck
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
EP84103773A
Other languages
German (de)
French (fr)
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EP0122550B1 (en
Inventor
Friedrich Greilinger
Ulrich Katschinski
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Fried Krupp AG
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Fried Krupp AG
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Publication of EP0122550A1 publication Critical patent/EP0122550A1/en
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Publication of EP0122550B1 publication Critical patent/EP0122550B1/en
Expired legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B35/00Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/02Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills
    • B21B35/04Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills each stand having its own motor or motors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B35/00Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/14Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
    • B21B35/141Rigid spindle couplings, e.g. coupling boxes placed on roll necks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0622Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B13/00Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B27/00Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06Lubricating, cooling or heating rolls
    • B21B27/10Lubricating, cooling or heating rolls externally
    • B21B2027/103Lubricating, cooling or heating rolls externally cooling externally
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B35/00Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B2035/005Hydraulic drive motors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B31/00Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/02Rolling stand frames or housings; Roll mountings ; Roll chocks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B31/00Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/02Rolling stand frames or housings; Roll mountings ; Roll chocks
    • B21B31/06Fastening stands or frames to foundation, e.g. to the sole plate
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B35/00Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/12Toothed-wheel gearings specially adapted for metal-rolling mills; Housings or mountings therefor

Definitions

  • the invention relates to a drive device for a continuous casting device with a pair of liquid-cooled casting rolls j between which metal melt is introduced by means of a nozzle and whose cooling liquid connection and drive are arranged on different sides of the roll supporting frame.
  • Continuous casting devices of the type mentioned at the outset are equipped, via cardan shafts, with a synchronous drive which has either a distribution gear or two single gears synchronized by angular gears.
  • a synchronous drive which has either a distribution gear or two single gears synchronized by angular gears.
  • toothed spindles are often used as cardan shafts, which are relatively expensive. Since the synchronous drive, which, moreover, requires a considerable amount of space, can only be dismantled with a considerable amount of work and time, the known continuous casting devices with casting rolls are designed in such a way that a casting roll change can only be carried out from the side of the coolant connection.
  • the invention has for its object to improve the manageability of continuous casting devices with casting rolls of the type mentioned at a reasonable technical effort.
  • the work and time required to change the casting roll should be reduced and the economy of the device should be increased by improved adaptability to different operating conditions.
  • a continuous casting device which essentially has the features of claim 1.
  • the basic idea of the invention is then to equip each casting roll with a direct roll drive in the form of a gear motor assigned only to the casting roll in question, which is detachably attached to the respective roll neck as a freely projecting drive unit.
  • the use of such compact and mutually independent gear motors not only has the advantage that any differences in diameter of the casting rolls can be compensated for via the drive unit and the torque distribution between the casting rolls, in particular also for influencing the strand surface, can be set freely. Any casting roll change that may be required can be carried out quickly, on the one hand, by loosening the complete drive units, which also have a relatively small longitudinal extension, without as previously, the liquid cooling must be laboriously dismantled.
  • casting rolls at the same time form a compact unit with the detachably fastened drive units
  • removal of the casting rolls without detaching the respective drive unit from the casting roll can preferably also be effected by removing the compact unit.
  • a casting roll change only requires that a further compact unit, consisting of casting roll and drive unit, is available.
  • the subject of the invention is expediently designed such that the housing of a geared motor, in particular of the geared motor below, is held in a rotationally fixed manner on the roller support frame and is articulatedly connected to the housing of the other geared motor via a torque arm (claim 2).
  • a torque arm (claim 2).
  • the torque support can be realized in particular in that the housings of both geared motors are equipped with a support arm and are movably connected to one another via a respective articulated link.
  • each geared motor has a flanged planetary gear, the output shaft of which forms a torque connection that can be produced by an axial displacement with the roll neck of the associated casting roll (claim 3); the gear motors can thus be detached from the casting rolls by a simple pull-off movement when the casting rolls are changed and placed at a suitable point.
  • a particularly simple and quickly producible axial connection between the output shafts of the geared motors and the roller journals consists in each case of a clamping ring which overlaps the respective connecting sections (claim 4) and consists in particular of two ring halves which are held together in an articulated manner and which have a clamping screw penetrating them as a closing element (claim 6).
  • the axial connection can be eliminated by loosening a single clamping screw and by unfolding the clamping ring.
  • the adjoining connecting sections of the roll neck on the one hand and the associated geared motor on the other preferably form a trapezoidal profile in cross section, which rests in the adapted recess of the clamping ring (claim 5).
  • the subject of the invention can also be designed such that the clamping ring consists of several partial rings which are clamped together in the axial direction in order to produce the axial connection between the geared motors and the roller journals; the adjoining connection sections can also form a different profile, for example a rectangular profile, in cross section.
  • the axial connection between the geared motors and the roller journal is further developed in that the output shaft of the geared motor is supported on a peripheral surface of the roller journal (claim 7); the output shaft thus overlaps part of the roll neck.
  • the continuous casting apparatus with casting rolls has a roll support frame with stands 1 and 2, in which two liquid-cooled casting rolls 3 and 4, one above the other, can be adjusted and removed.
  • Each casting roller is equipped (in Fig. 1 on the left side of the roller trestle) with a coolant connection 5, through which a suitable conduit system 6 coolant introduced into the respective casting roll or to the R ückkühlung outwardly discharged.
  • Adequate cooling of the casting rolls 3 and 4 ensures that the metal melt supplied by means of a nozzle (not shown) has solidified before the point of the smallest distance between the two casting rolls 3 and 4 (ie the connecting line between their axes of rotation 3 'and 4' ) is run through.
  • the cast product which has completely solidified in the area of the smallest distance between the two casting rolls is designated by 7.
  • roller journals 3 "and 4" are each detachably connected with their own direct drive in the form of a gear motor 8 - each consisting of a hydraulic motor 9 with a flanged planetary gear 10.
  • the roller support frame In the working position shown in FIG. 2, the roller support frame assumes a position inclined by 30 relative to the vertical, in which it is supported on the stop surface 11 'of a bracket 11.
  • the pivoting into or out of the working position is achieved by loosening a locking bolt 12 a swivel drive 13 with at least one hydraulic cylinder.
  • the housings of the superimposed geared motors 8 are in the vicinity of the roller trestle, i.e. in the vicinity of the stand 2, each equipped with a support arm 14 and 15 and articulated to each other by means of a handlebar 16.
  • the lower support arm 14 is rotatably held by a bolt 17 attached to the stand 2.
  • the support arms 14 and 15 and the link 16 connected to them form a torque support which allows the casting roll position to be changed without further structural intervention.
  • the geared motors 8 can be connected to the associated roll neck (for example the roll neck 4 ") via the output shafts 10 'of the planetary gear 10 without any particular effort
  • the parts 4" or 10' to be connected to one another are provided with connecting sections 4 "" or 10 "equipped, which form a trapezoidal profile with the outer flanks 4a and 10a in cross section in the connection position indicated in FIG. 3; the associated contact surfaces, by means of which the parts 4 ′′ and 10 ′ are supported against one another in the axial direction, are designated 4b and 10b, respectively.
  • the trapezoidal profile engages via its inclined outer flanks 4a and 10a in the adapted recess 18 of a clamping ring 19, which holds the contact surfaces 4b and 10b against one another via a clamping screw 20.
  • the torque connection between the roll neck 4 "and the output shaft 10 ' consists of an interlocking spline 4""or10"' in Area of the respective connection section 4 "'or 10".
  • the spline 4 "" of the roll neck 4 " also serves as a peripheral surface on which the output shaft 10 'of the associated geared motor 8 is supported.
  • the clamping ring 19 consists of two ring halves 19 ′ and 19 ′′, which are movably connected to one another on the side opposite the clamping screw 20 via a hinge pin 21 (FIG. 4).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

Stranggießvorrichtungen mit einem paar flüssigkeitsgekühlter Gießwalzen, zwischen die mittels einer Düse Metallschmelze eingebracht wird und deren Kühlflüssigkeitsanschluß sowie über Gelenkwellen angeschlossener Synchronantrieb auf unterschiedlichen Seiten des Walzentraggerüstes angeordnet sind, weisen den Nachteil auf, daß die Gießwalzen nur nach Abbau der Flüssigkeitskühlung ausgewechselt werden können und daß im übrigen nur Gießwalzen verwendbar sind, deren Durchmesserverhältnisse keine oder nur ganz geringfügige Änderungen erfahren. Zur Beseitigung der geschilderten Nachteile wird jede Gießwalze (3, 4) mit einem eigenen Getriebemotor (8) ausgestattet, der als frei vorkragende Antriebseinheit lösbar an dem jeweiligen Walzenzapfen (3" bzw. 4") befestigt ist. Die Axialverbindung zwischen den Abtriebswellen (10') der Getriebemotore (8) und den Walzenzapfen besteht vorteilhaft jeweils aus einem die jeweiligen Anschlußabschnitte (4‴ bzw. 10") gemeinsam übergreifenden Spannring (19).Continuous casting devices with a pair of liquid-cooled casting rolls, between which metal melt is introduced by means of a nozzle and whose cooling liquid connection and synchronous drive connected via cardan shafts are arranged on different sides of the roller support frame, have the disadvantage that the casting rolls can only be replaced after the liquid cooling has been removed, and that in only casting rolls can be used, the diameter ratios of which undergo little or no changes. To eliminate the disadvantages described, each casting roll (3, 4) is equipped with its own gear motor (8), which is detachably attached to the respective roll neck (3 "or 4") as a freely projecting drive unit. The axial connection between the output shafts (10 ') of the geared motors (8) and the roller journals advantageously consists in each case of a clamping ring (19) which overlaps the respective connecting sections (4 ‴ or 10 ").

Description

Die Erfindung betrifft eine Antriebsvorrichtung für eine Stranggießvorrichtung mit einem Paar flüssigkeitsgekühlter Gießwalzenjzwischen die mittels einer Düse Metallschmelze eingebracht wird und deren Kühlflüssigkeitsanschluß sowie Antrieb auf unterschiedlichen Seiten des Walzentraggerüstes angeordnet sind.The invention relates to a drive device for a continuous casting device with a pair of liquid-cooled casting rolls j between which metal melt is introduced by means of a nozzle and whose cooling liquid connection and drive are arranged on different sides of the roll supporting frame.

Stranggießvorrichtungen der eingangs genannten Gattung (bekannt beispielsweise aus der AT-PS 209 510) sind über Gelenkwellen mit einem Synchronantrieb ausgestattet, der entweder ein Verteilgetriebe oder zwei durch Winkelgetriebe synchronisierte Einzelgetriebe aufweist. Zur Vermeidung kinematischer Ungleichförmigkeiten werden häufig Zahnspindeln als Gelenkwellen eingesetzt, welche verhältnismäßig kostspielig sind. Da der Synchronantrieb, der im übrigen einen beträchtlichen Platzbedarf aufweist, nur mit einem erheblichen Arbeits-und Zeitaufwand abbaubar ist, sind die bekannten Stranggießvorrichtungen mit Gießwalzen so ausgebildet, daß ein Gießwalzenwechsel nur von der Seite des Kühlflüssigkeitsanschlusses her vorgenommen werden kann. Ein weiterer wesentlicher Nachteil dieser bekannten Stranggießvorrichtungen ist darin zu sehen, daß - bedingt durch die Verwendung des Synchronantriebs - die Gießwalzendurchmesser zur Vermeidung von Abrollunterschieden allenfalls geringfügig voneinander abweichen dürfen. Dies hat zur Folge, daß ggf. noch einsatzfähige Gießwalzen nachgeschliffen werden müssen, wodurch sich ihre an sich erzielbare Einsatzdauer unnötigerweise verkürzt.Continuous casting devices of the type mentioned at the outset (known, for example, from AT-PS 209 510) are equipped, via cardan shafts, with a synchronous drive which has either a distribution gear or two single gears synchronized by angular gears. To avoid kinematic irregularities, toothed spindles are often used as cardan shafts, which are relatively expensive. Since the synchronous drive, which, moreover, requires a considerable amount of space, can only be dismantled with a considerable amount of work and time, the known continuous casting devices with casting rolls are designed in such a way that a casting roll change can only be carried out from the side of the coolant connection. Another major disadvantage of these known continuous casting devices can be seen in the fact that - due to the use of the synchronous drive - the casting roll diameter to avoid roll differences at most ge may differ slightly from each other. The consequence of this is that casting rollers which may still be operational may have to be reground, which unnecessarily shortens their useful life.

Der Erfindung liegt die Aufgabe zugrunde, die Handhabbarkeit von Stranggießvorrichtungen mit Gießwalzen der eingangs genannten Gattung bei vertretbarem technischem Aufwand zu verbessern. Insbesondere soll der für den Gießwalzenwechsel zu treibende Arbeits- und Zeitaufwand herabgesetzt und die Wirtschaftlichkeit der Vorrichtung durch verbesserte Anpaßbarkeit an unterschiedliche Betriebsbedingungen erhöht werden.The invention has for its object to improve the manageability of continuous casting devices with casting rolls of the type mentioned at a reasonable technical effort. In particular, the work and time required to change the casting roll should be reduced and the economy of the device should be increased by improved adaptability to different operating conditions.

Die gestellte Aufgabe wird durch eine Stranggießvorrichtung gelöst, welche im wesentlichen die Merkmale des Anspruchs 1 aufweist. Der Grundgedanke der Erfindung besteht danach darin, jede Gießwalze mit einem Walzendirektantrieb in Form eines nur der betreffenden Gießwalze zugeordneten Getriebemotors auszustatten, der als frei vorkragende Antriebseinheit lösbar an dem jeweiligen Walzenzapfen befestigt ist. Die Verwendung derartiger kompakter und voneinander unabhängiger Getriebemotore hat nicht nur den Vorteil, daß etwaige Durchmesserunterschiede der Gießwalzen über die Antriebseinheit ausgeglichen und auch die Drehmomentverteilung zwischen den Gießwalzen, insbesondere auch zur Beeinflussung der Strangoberfläche, frei eingestellt werden kann. Ein etwa erforderlicher Gießwalzenwechsel kann einerseits durch Lösen der kompletten Antriebseinheiten, die zudem eine verhältnismäßig geringe Längserstreckung aufweisen, schnellstens ausgeführt werden, ohne daß wie bisher die Flüssigkeitskühlung umständlich abgebaut werden muß. Da die Gießwalzen mit den lösbar befestigten Antriebseinheiten gleichzeitig eine Kompakteinheit bilden, kann ein Gießwalzenausbau ohne Lösen der jeweiligen Antriebseinheit von der Gießwalze vorzugsweise auch durch Ausbau der Kompakteinheit bewirkt werden. Ein Gießwalzenwechsel setzt dabei nur voraus, daß eine weitere Kompakteinheit, bestehend aus Gießwalze und Antriebseinheit, zur Verfügung steht.The object is achieved by a continuous casting device which essentially has the features of claim 1. The basic idea of the invention is then to equip each casting roll with a direct roll drive in the form of a gear motor assigned only to the casting roll in question, which is detachably attached to the respective roll neck as a freely projecting drive unit. The use of such compact and mutually independent gear motors not only has the advantage that any differences in diameter of the casting rolls can be compensated for via the drive unit and the torque distribution between the casting rolls, in particular also for influencing the strand surface, can be set freely. Any casting roll change that may be required can be carried out quickly, on the one hand, by loosening the complete drive units, which also have a relatively small longitudinal extension, without as previously, the liquid cooling must be laboriously dismantled. Since the casting rolls at the same time form a compact unit with the detachably fastened drive units, removal of the casting rolls without detaching the respective drive unit from the casting roll can preferably also be effected by removing the compact unit. A casting roll change only requires that a further compact unit, consisting of casting roll and drive unit, is available.

Zweckmäßigerweise ist der Erfindungsgegenstand so ausgestaltet, daß das Gehäuse eines Getriebemotors, insbesondere des untenliegenden Getriebemotors, drehfest an dem Walzentraggerüst gehalten ist und über eine Drehmomentenstütze gelenkig mit dem Gehäuse des anderen Getriebemotors in Verbindung steht (Anspruch 2). Dies hat den Vorteil, daß die Gießwalzenanstellung ohne Eingriff in den Aufbau der Getriebemotore verändert werden kann.The subject of the invention is expediently designed such that the housing of a geared motor, in particular of the geared motor below, is held in a rotationally fixed manner on the roller support frame and is articulatedly connected to the housing of the other geared motor via a torque arm (claim 2). This has the advantage that the casting roll setting can be changed without interfering with the structure of the geared motors.

Die Drehmomentenstütze läßt sich insbesondere dadurch verwirklichen, daß die Gehäuse beider Getriebemotore mit einem Stützarm ausgestattet sind und über einen jeweils gelenkig angeschlossenen Lenker beweglich miteinander in Verbindung stehen.The torque support can be realized in particular in that the housings of both geared motors are equipped with a support arm and are movably connected to one another via a respective articulated link.

Bei einer besonders kompakten Ausbildung des Erfingungsgegenstandes weist jeder Getriebemotor ein angeflanschtes Planetengetriebe auf, dessen Abtriebswelle mit dem Walzenzapfen der zugehörigen Gießwalze eine durch eine Axialverschiebung herstellbare Drehmomentverbindung bildet (Anspruch 3); die Getriebemotore können also beim Gießwalzenwechsel durch eine einfache Abziehbewegung von den Gießwalzen gelöst und an geeigneter Stelle abgelegt werden.In a particularly compact design of the subject of the invention, each geared motor has a flanged planetary gear, the output shaft of which forms a torque connection that can be produced by an axial displacement with the roll neck of the associated casting roll (claim 3); the gear motors can thus be detached from the casting rolls by a simple pull-off movement when the casting rolls are changed and placed at a suitable point.

Eine besonders einfache und schnell herstellbare Axialverbindung zwischen den Abtriebswellen der Getriebemotore und den Walzenzapfen besteht jeweils aus einem die jeweiligen Anschlußabschnitte gemeinsam übergreifenden Spannring (Anspruch 4), der insbesondere aus zwei gelenkig aneinander gehaltenen Ringhälften besteht, die als Schließelement eine sie durchdringende Spannschraube aufweisen (Anspruch 6). Die Axialverbindung kann in diesem Fall also durch Lösen einer einzigen Spannschraube und durch Auseinanderklappen des Spannrings beseitigt werden.A particularly simple and quickly producible axial connection between the output shafts of the geared motors and the roller journals consists in each case of a clamping ring which overlaps the respective connecting sections (claim 4) and consists in particular of two ring halves which are held together in an articulated manner and which have a clamping screw penetrating them as a closing element (claim 6). In this case, the axial connection can be eliminated by loosening a single clamping screw and by unfolding the clamping ring.

Die aneinanderliegenden Anschlußabschnitte des Walzenzapfens einerseits und des zugehörigen Getriebemotors andererseits bilden im Querschnitt vorzugsweise ein Trapezprofil, das in der angepaßten Ausnehmung des Spannrings ruht (Anspruch 5). Der Erfindungsgegenstand kann jedoch auch so ausgestaltet sein, daß der Spannring aus mehreren Teilringen besteht, die zur Herstellung der Axialverbindung zwischen den Getriebemotoren und den Walzenzapfen miteinander in Axialrichtung verspannt werden; die aneinanderliegenden Anschlußabschnitte können dabei auch im Querschnitt ein anderes Profil, beispielsweise ein Rechteckprofil,bilden.The adjoining connecting sections of the roll neck on the one hand and the associated geared motor on the other preferably form a trapezoidal profile in cross section, which rests in the adapted recess of the clamping ring (claim 5). However, the subject of the invention can also be designed such that the clamping ring consists of several partial rings which are clamped together in the axial direction in order to produce the axial connection between the geared motors and the roller journals; the adjoining connection sections can also form a different profile, for example a rectangular profile, in cross section.

Die Axialverbindung zwischen den Getriebemotoren und den Walzenzapfen ist dadurch weiter ausgestaltet, daß die Abtriebswelle des Getriebemotors sich auf einer Umfangsfläche des Walzenzapfens abstützt (Anspruch 7); die Abtriebswelle übergreift also einen Teil des Walzenzapfens.The axial connection between the geared motors and the roller journal is further developed in that the output shaft of the geared motor is supported on a peripheral surface of the roller journal (claim 7); the output shaft thus overlaps part of the roll neck.

Die Erfindung-wird nachfolgend anhand eines in der Zeichnung stark schematisiert dargestellten Ausführungsbeispiels erläutert.The invention is explained below on the basis of an embodiment shown in a highly schematic manner in the drawing.

Es zeigen:

  • Fig. 1 eine Stirnansicht einer Stranggießvorrichtung mit Gießwalzen mit zwei voneinander unabhängigen, frei vorkragenden Antriebeinheiten für die beiden zusammenwirkenden Gießwalzen,
  • Fig. 2 eine Seitenansicht des in der geneigten Betriebsstellung befindlichen Walzentraggerüstes, dessen Antriebseinheiten über eine Drehmomentenstutze miteinander in Verbindung stehen,
  • Fig. 3 einen Teilschnitt im Bereich des Anschlußabschnittes eines Walzenzapfens und der Abtriebswelle einer Antriebseinheit und
  • Fig. 4 in gegenüber Fig. 3 verkleinertem Maßstab eine Ansicht eines Spannrings, über den die Axialverbindung zwischen dem Walzenzapfen und der Abtriebswelle hergestellt wird.
Show it:
  • 1 is a front view of a continuous casting device with casting rolls with two mutually independent, freely projecting drive units for the two interacting casting rolls,
  • 2 is a side view of the roller support frame in the inclined operating position, the drive units of which are connected to one another via a torque arm,
  • Fig. 3 is a partial section in the region of the connecting portion of a roll neck and the output shaft of a drive unit and
  • Fig. 4 on a reduced scale compared to Fig. 3 is a view of a clamping ring, via which the axial connection between the roll neck and the output shaft is made.

Die Stranggießvorrichtung mit Gießwalzen weist ein Walzentraggerüst mit Ständern 1 und 2 auf, in denen zwei übereinanderliegende, flüssigkeitsgekühlte Gießwalzen 3 und 4 anstellbar und ausbaubar gehalten sind. Jede Gießwalze ist (in Fig. 1 auf der linken Seite des Walzentraggerüstes) mit einem Kühlflüssigkeitsanschluß 5 ausgestattet, über welchen durch ein geeignetes Leitungssystem 6 Kühlflüssigkeit in die betreffende Gießwalze eingeleitet bzw. zur Rückkühlung nach außen abgeführt wird.The continuous casting apparatus with casting rolls has a roll support frame with stands 1 and 2, in which two liquid-cooled casting rolls 3 and 4, one above the other, can be adjusted and removed. Each casting roller is equipped (in Fig. 1 on the left side of the roller trestle) with a coolant connection 5, through which a suitable conduit system 6 coolant introduced into the respective casting roll or to the R ückkühlung outwardly discharged.

Durch eine ausreichend ausgelegte Kühlung der Gießwalzen 3 und 4 wird sichergestellt, daß die mittels einer nicht dargestellten Düse zugeführte Metallschmelze erstarrt ist, bevor die Stelle des geringsten Abstandes zwischen den beiden Gießwalzen 3 und 4 (d.h. die Verbindungslinie zwischen deren Drehachsen 3' und 4') durchlaufen wird. Das im Bereich des geringsten Abstandes zwischen den beiden Gießwalzen vollständig durcherstarrte Gießerzeugnis ist mit 7 bezeichnet.Adequate cooling of the casting rolls 3 and 4 ensures that the metal melt supplied by means of a nozzle (not shown) has solidified before the point of the smallest distance between the two casting rolls 3 and 4 (ie the connecting line between their axes of rotation 3 'and 4' ) is run through. The cast product which has completely solidified in the area of the smallest distance between the two casting rolls is designated by 7.

Auf der dem Kühlflüssigkeitsanschluß 5 gegenüberliegenden Seite des Walzentraggerüstes stehen die Walzenzapfen 3" und 4" jeweils mit einem eigenen Direktantrieb in Form eines Getriebmotors 8 - bestehend jeweils aus einem Hydraulikmotor 9 mit einem angeflanschten Planetengetriebe 10 - lösbar in Verbindung.On the side of the roller support frame opposite the coolant connection 5, the roller journals 3 "and 4" are each detachably connected with their own direct drive in the form of a gear motor 8 - each consisting of a hydraulic motor 9 with a flanged planetary gear 10.

Die durch Verwendung des Planetengetriebes kompakt ausgebildeten und frei über den Ständer 2 vorkragenden Getriebemotore 8 sind ohne besonderen Aufwand von den zugehörigen Walzenzapfen 3" bzw. 4" abziehbar, so daß ein etwa erforderlich werdender Gießwalzenwechsel von der Seite des Ständers 2 her, also ohne Abbau der Wasserkühlung, vorgenommen werden kann.The use of the planetary gear compactly designed and freely projecting above the stator 2 gear motors 8 can be pulled off the associated roll neck 3 "or 4" without any special effort, so that a casting roll change that may be required from the side of the stator 2, that is, without dismantling the water cooling.

In der in Fig. 2 dargestellten Arbeitsstellung nimmt das Walzentraggerüst eine gegenüber der Lotrechten um 30 geneigte Lage ein, in der es sich an der Anschlagfläche 11' einer Konsole 11 abstützt. Die Schwenkung in die bzw. aus der Arbeitsstellung wird nach Lösen eines Feststellbolzens 12 mittels eines Schwenkantriebs 13 mit mindestens einem Hydraulikzylinder bewirkt.In the working position shown in FIG. 2, the roller support frame assumes a position inclined by 30 relative to the vertical, in which it is supported on the stop surface 11 'of a bracket 11. The pivoting into or out of the working position is achieved by loosening a locking bolt 12 a swivel drive 13 with at least one hydraulic cylinder.

Die Gehäuse der übereinanderliegenden Getriebemotore 8 sind in der Nähe des Walzentraggerüstes, d.h. in der Nähe des Ständers 2, jeweils mit einem Stützarm 14 bzw. 15 ausgestattet und über diese mittels eines Lenkers 16 gelenkig miteinander verbunden. Im Gegensatz zu dem obenliegenden Stützarm 15 ist der untere Stützarm 14 über einen am Ständer 2 befestigten Bolzen 17 drehbar gehalten. Die Stützarme 14 und 15 sowie der mit ihnen verbundene Lenker 16 bilden eine Drehmomentenstütze, die ohne weiteren baulichen Eingriff eine Veränderung der Gießwalzenanstellung zuläßt.The housings of the superimposed geared motors 8 are in the vicinity of the roller trestle, i.e. in the vicinity of the stand 2, each equipped with a support arm 14 and 15 and articulated to each other by means of a handlebar 16. In contrast to the overhead support arm 15, the lower support arm 14 is rotatably held by a bolt 17 attached to the stand 2. The support arms 14 and 15 and the link 16 connected to them form a torque support which allows the casting roll position to be changed without further structural intervention.

Damit die Getriebemotore 8 über die Abtriebswellen 10' der Planetengetriebe 10 ohne besonderen Aufwand mit dem zugehörigen Walzenzapfen (beispielsweise dem Walzenzapfen 4") verbunden werden können, sind die genannten miteinander zu verbindenden Teile 4" bzw. 10' mit Anschlußabschnitten 4"' bzw. 10" ausgestattet, die in der in Fig. 3 angedeuteten Verbindungsstellung im Querschnitt ein Trapezprofil mit den Außenflanken 4a bzw. 10a bilden; die zugehörigen Berührungsflächen, über die sich die Teile 4" und 10' in axialer Richtung aneinander abstützen, sind mit 4b bzw. 10b bezeichnet.So that the geared motors 8 can be connected to the associated roll neck (for example the roll neck 4 ") via the output shafts 10 'of the planetary gear 10 without any particular effort, the parts 4" or 10' to be connected to one another are provided with connecting sections 4 "" or 10 "equipped, which form a trapezoidal profile with the outer flanks 4a and 10a in cross section in the connection position indicated in FIG. 3; the associated contact surfaces, by means of which the parts 4 ″ and 10 ′ are supported against one another in the axial direction, are designated 4b and 10b, respectively.

Das Trapezprofil greift über seine geneigten Außenflanken 4a und 10a in die angepaßte Ausnehmung 18 eines Spannrings 19 ein, der über eine Spannschraube 20 die Berührungsflächen 4b und 10b aneinander in Anlage hält.The trapezoidal profile engages via its inclined outer flanks 4a and 10a in the adapted recess 18 of a clamping ring 19, which holds the contact surfaces 4b and 10b against one another via a clamping screw 20.

Die Drehmomentverbindung zwischen dem Walzenzapfen 4" und der Abtriebswelle 10' besteht aus einer ineinandergreifenden Keilverzahnung 4"" bzw. 10"' im Bereich des jeweiligen Anschlußabschnittes 4"' bzw. 10". Die Keilverzahnung 4"" des Walzenzapfens 4" dient gleichzeitig als Umfangsfläche, an welcher sich die Abtriebswelle 10' des zugehörigen Getriebemotors 8 abstützt.The torque connection between the roll neck 4 "and the output shaft 10 'consists of an interlocking spline 4""or10"' in Area of the respective connection section 4 "'or 10". The spline 4 "" of the roll neck 4 "also serves as a peripheral surface on which the output shaft 10 'of the associated geared motor 8 is supported.

Der Spannring 19 besteht aus zwei Ringhälften 19' und 19", die auf der der Spannschraube 20 gegenüberliegenden Seite über einen Gelenkbolzen 21 beweglich miteinander verbunden sind (Fig. 4).The clamping ring 19 consists of two ring halves 19 ′ and 19 ″, which are movably connected to one another on the side opposite the clamping screw 20 via a hinge pin 21 (FIG. 4).

Durch Anziehen der Spannschraube 20 werden die Außenflanken 4a und 10a an den entsprechend geneigten Ausnehmungsflächen 18' und 18" in Anlage gebracht, so daß sich die Berührungsflächen 4b und 10b der Teile 4" und 10' in axialer Richtung unbeweglich aneinander abstützen. Die unter Einwirkung der Spannschraube 20 gegeneinander bewegten Anschlagflächen der Ringhälften 19' und 19" sind mit 19"' bezeichnet.By tightening the clamping screw 20, the outer flanks 4a and 10a are brought into contact with the correspondingly inclined recess surfaces 18 'and 18 ", so that the contact surfaces 4b and 10b of the parts 4" and 10' are immovably supported on one another in the axial direction. The abutment surfaces of the ring halves 19 'and 19 "moved against one another under the action of the clamping screw 20 are designated by 19"'.

Der Vorteil der in Fig. 3 (im Zusammenhang mit Fig. 4) dargestellten Ausführungsform besteht darin, daß es nur der Betätigung einer einzigen Spannschraube bedarf, um die Abtriebswelle 10' - und damit den Getriebemotor 8 - vom Walzenzapfen 4" freizusetzen.The advantage of the embodiment shown in FIG. 3 (in connection with FIG. 4) is that it only requires the actuation of a single clamping screw in order to release the output shaft 10 '- and thus the geared motor 8 - from the roll neck 4 ".

Insgesamt gesehen läßt sich mit der Erfindung die Wirtschaftlichkeit von Stranggießvorrichtungen mit Gießwalzen beachtlich verbessern, da der Aufwand für den Gießwalzenwechsel erheblich verringert wird und, bedingt durch die Verwendung voneinander unabhängiger Direktantriebe, auch Gießwalzen mit unterschiedlichen Durchmessern zum Einsatz kommen können. Die Verwendung von Direktantrieben hat im übrigen nicht nur eine Herabsetzung des Platzbedarfs zur Folge, sondern macht auch den Einsatz besonderer, kostspieliger Gelenkwellen überflüssig. Von wesentlicher Bedeutung ist es außerdem, daß die Gießwalzen mit den Antriebseinheiten eine jeweils unabhängige Kompakteinheit bilden, die ggf. auch als solche, d.h. ohne Lösen der Antriebseinheit von der Gießwalze, handhabbar ist.Overall, the cost-effectiveness of continuous casting devices with casting rolls can be considerably improved with the invention, since the effort for changing the casting rolls is considerably reduced and, due to the use of independent direct drives, casting rolls with different diameters can also be used. Incidentally, the use of direct drives does not only have a reduction of space requirements, but also makes the use of special, expensive cardan shafts superfluous. It is also essential that the casting rolls form an independent compact unit with the drive units, which can also be handled as such, ie without detaching the drive unit from the casting roll.

Anstelle des in Fig. 2 dargestellten Bolzens 17 kann auch eine andersartige drehfeste Verbindung zwischen dem Stützarm 14 und dem Ständer 2 zur Anwendung kommen; insbesondere kann der Stützarm 14 über Anschläge am Ständer 2 gehalten sein.Instead of the bolt 17 shown in FIG. 2, another type of non-rotatable connection between the support arm 14 and the stand 2 can also be used; in particular, the support arm 14 can be held on the stand 2 via stops.

Claims (7)

1. Antriebsvorrichtung für eine Stranggießvorrichtung mit einem Paar flüssigkeitsgekühlter Gießwalzen, zwischen die mittels einer Düse Metallschmelze eingebracht wird und deren Kühlflüssigkeitsanschluß sowie Antrieb auf unterschiedlichen Seiten des Walzentraggerüstes angeordnet sind, dadurch gekennzeichnet, daß jede Gießwalze (3, 4) über einen eigenen Getriebemotor (8) verfügt, der als frei vorkragende Antriebseinheit lösbar an dem jeweiligen Walzenzapfen (3" bzw. 4") befestigt ist.1. Drive device for a continuous casting device with a pair of liquid-cooled casting rolls, between which metal melt is introduced by means of a nozzle and whose cooling liquid connection and drive are arranged on different sides of the roll support frame, characterized in that each casting roll (3, 4) has its own geared motor (8 ), which is detachably attached to the respective roll neck (3 "or 4") as a freely projecting drive unit. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Gehäuse eines Getriebemotors (8) drehfest an dem Walzentraggerüst gehalten ist und über eine Drehmomentenstütze (Teile 14 bis 16) gelenkig mit dem Gehäuse des anderen Getriebemotors in Verbindung steht.2. Apparatus according to claim 1, characterized in that the housing of a geared motor (8) is held in a rotationally fixed manner on the roller support frame and is connected in an articulated manner to the housing of the other geared motor via a torque support (parts 14 to 16). 3. Vorrichtung nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, daß jeder Getriebemotor (8) ein angeflanschtes Planetengetriebe (10) aufweist, dessen Abtriebswelle (10') mit dem Walzenzapfen (4") eine durch eine Axialverschiebung herstellbare Drehmomentverbindung bildet.3. Device according to one of claims 1 to 2, characterized in that each geared motor (8) has a flanged planetary gear (10), the output shaft (10 ') with the roll neck (4 ") forms a torque connection which can be produced by an axial displacement. 4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Axialverbindung zwischen den Abtriebswellen (10') der Getriebemotore (8) und den Walzenzapfen (4") jeweils aus einem die jeweiligen Anschlußabschnitte (4'" bzw. 10") gemeinsam übergreifenden Spannring (19) besteht.4. Device according to one of claims 1 to 3, characterized in that the axial connection between the output shafts (10 ') of the geared motors (8) and the roll neck (4 ") each from a respective connection sections (4'" or 10 " ) common clamping ring (19). 5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die aneinanderliegenden Anschlußabschnitte (4"', 10") gemeinsam im Querschnitt ein Trapezprofil (Trapezflanken 4a, 10a) bilden, das in der angepaßten Ausnehmung (18) des Spannrings (19) ruht.5. The device according to claim 4, characterized in that the abutting connection sections (4 "', 10") together in cross section form a trapezoidal profile (trapezoidal flanks 4a, 10a) which rests in the adapted recess (18) of the clamping ring (19). 6. Vorrichtung nach einem der Ansprüche 4 bis 5, dadurch gekennzeichnet, daß der Spannring (19) aus zwei gelenkig aneinander gehaltenen Ringhälften (19', 19") besteht, die als Schließelement eine sie durchdringende Spannschraube (20) aufweisen.6. Device according to one of claims 4 to 5, characterized in that the clamping ring (19) consists of two hinged halves (19 ', 19 "), which have a penetrating clamping screw (20) as a closing element. 7. Vorrichtung nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß die Abtriebswelle (10') des Getriebemotors (8) sich auf einer Umfangsfläche des Walzenzapfens (4") abstützt.7. Device according to one of claims 4 to 6, characterized in that the output shaft (10 ') of the geared motor (8) is supported on a peripheral surface of the roll neck (4 ").
EP84103773A 1983-04-14 1984-04-05 Driving device for casting rollers Expired EP0122550B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3313542 1983-04-14
DE3313542A DE3313542C1 (en) 1983-04-14 1983-04-14 Drive device for casting rolls

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EP0122550A1 true EP0122550A1 (en) 1984-10-24
EP0122550B1 EP0122550B1 (en) 1986-07-23

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US (1) US4559990A (en)
EP (1) EP0122550B1 (en)
JP (1) JPS59199153A (en)
AU (1) AU558955B2 (en)
CA (1) CA1217022A (en)
DE (1) DE3313542C1 (en)
NO (1) NO161476C (en)

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CH671892A5 (en) * 1987-02-03 1989-10-13 Lauener Eng Ag Synchronised individual drive for rolling mills - individual drives mounted on roller bearing housings to improve coordination and reliability
WO1992002321A1 (en) * 1990-08-03 1992-02-20 Davy Mckee (Poole) Limited Twin roll casting
WO1992002320A1 (en) * 1990-08-03 1992-02-20 Davy Mckee (Poole) Limited Twin roll casting
ITUA20163098A1 (en) * 2016-05-03 2017-11-03 Fives Oto Spa Roller cage for profiling line

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EP0209609B1 (en) * 1985-07-17 1989-05-31 Herbert Prignitz Double endless belt-shaping apparatus
DE3624114A1 (en) * 1986-07-17 1988-01-21 Max Planck Inst Eisenforschung DEVICE FOR PRODUCING ROLLABLE SHEET FROM MELTING METAL
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US6920772B1 (en) 2003-02-12 2005-07-26 Morgan Construction Company Pinch roll unit
US7861567B2 (en) 2005-11-22 2011-01-04 Og Technologies, Inc. Method and apparatus to control the lateral motion of a long metal bar being formed by a mechanical process such as rolling or drawing
US7275404B1 (en) 2005-11-22 2007-10-02 Og Technologies, Inc. Method and an apparatus to control the lateral motion of a long metal bar being formed by a mechanical process such as rolling or drawing
CN114906563B (en) * 2022-04-18 2023-06-16 安徽圣方机械制造股份有限公司 Belt adjusting carrier roller for small-angle fine adjustment

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CH671892A5 (en) * 1987-02-03 1989-10-13 Lauener Eng Ag Synchronised individual drive for rolling mills - individual drives mounted on roller bearing housings to improve coordination and reliability
WO1992002321A1 (en) * 1990-08-03 1992-02-20 Davy Mckee (Poole) Limited Twin roll casting
WO1992002320A1 (en) * 1990-08-03 1992-02-20 Davy Mckee (Poole) Limited Twin roll casting
ITUA20163098A1 (en) * 2016-05-03 2017-11-03 Fives Oto Spa Roller cage for profiling line
EP3241627A1 (en) * 2016-05-03 2017-11-08 Fives Oto S.P.A. A roller cage for a profiling line

Also Published As

Publication number Publication date
AU558955B2 (en) 1987-02-12
JPS59199153A (en) 1984-11-12
NO161476B (en) 1989-05-16
EP0122550B1 (en) 1986-07-23
DE3313542C1 (en) 1984-08-30
US4559990A (en) 1985-12-24
NO841317L (en) 1984-10-15
CA1217022A (en) 1987-01-27
JPH0342137B2 (en) 1991-06-26
NO161476C (en) 1989-08-23
AU2611384A (en) 1984-10-18

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