EP0017696B1 - Revolving turret for ladles - Google Patents

Revolving turret for ladles Download PDF

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Publication number
EP0017696B1
EP0017696B1 EP80100163A EP80100163A EP0017696B1 EP 0017696 B1 EP0017696 B1 EP 0017696B1 EP 80100163 A EP80100163 A EP 80100163A EP 80100163 A EP80100163 A EP 80100163A EP 0017696 B1 EP0017696 B1 EP 0017696B1
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EP
European Patent Office
Prior art keywords
turret
fact
support
lever
rotating turret
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Expired
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EP80100163A
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German (de)
French (fr)
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EP0017696B2 (en
EP0017696A1 (en
Inventor
Wilhelm Blum
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Mannesmann Demag AG
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Mannesmann Demag AG
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Application filed by Mannesmann Demag AG filed Critical Mannesmann Demag AG
Priority to AT80100163T priority Critical patent/ATE3822T1/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
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/12—Travelling ladles or similar containers; Cars for ladles
    • B22D41/13—Ladle turrets

Definitions

  • the invention relates to a turret for ladles with two mutually opposed, substantially symmetrical to the axis of rotation, at their free ends each provided with a receiving device for a ladle, fork-shaped in plan view, which is tiltably mounted on a part of the tower rotatable about the axis of the turret and can be pivoted to a limited extent in the vertical plane with the aid of at least one lifting means articulated at one end on the turret and at the other end on the lever, in particular a pressure medium-actuated cylinder-piston arrangement, each lever being provided with two arms firmly connected by means of a cross member and a deformable with corresponding links Articulated crank gear forms.
  • a turret of this type in which a cantilever which is rotatable approximately in the horizontal direction and essentially symmetrical to the pivot point and which receives the ladles at both ends, is e.g. known from DE-AS-20 44 979.
  • the boom is pivotally supported in a vertical plane limited from its horizontal position on a pedestal. Alternating loadable lifting elements are provided on both sides of the swivel joint.
  • the height of the two ladles is motion-dependent.
  • this dependency has proven to be a disadvantage.
  • the second pan must be independently adjustable in height regardless of the position of the first pan.
  • the arrangement of the lifting devices affects the space in the area of the facilities located under the ladle (casting trough) and thus complicates the work of the operating personnel. This also applies to the work on the slide lock when preparing the casting.
  • the invention has for its object to provide a turret of the type mentioned, which does not have the disadvantages recorded, but rather is designed so that in particular in the simple structure maintenance and assembly work are simplified.
  • a completely free space is to be created beneath the ladles next to the main turret.
  • levers are not pivotally mounted, as before, around an axis accommodated in the lever, but in bearings which are open in plan view, the lever can be easily removed, for example with the aid of a crane be lifted off or placed in the bearings during assembly. This considerably simplifies assembly, which is particularly advantageous for maintenance, inspection and repairs.
  • the free space in the middle of the turret can be used to build work platforms from which the pans are more accessible. This is important for observation, temperature measurements, adding supplements, etc.
  • a telescopic plunger cylinder can optionally be used to further simplify the hydraulic lines.
  • a fixed foundation frame 2 is attached to a base 1.
  • a rotatably driven support ring 3 is rotatably mounted on the frame 2.
  • the axis of rotation of the tare ring is also the axis of rotation of the entire turret.
  • a ring 4 is provided, which is in engagement with the gears 5 of a fixedly arranged rotary drive 6 (FIG. 2).
  • the support ring 3 is relatively low.
  • the sides of the ring and its upper base are stiffened because they have to withstand high loads.
  • the turret is equipped with two levers 7 arranged opposite to each other and essentially symmetrical to the axis of rotation, which operate independently of one another.
  • the levers are fork-shaped in plan view, as shown in FIG. 2.
  • Each lever consists of two load arms 8 which extend substantially perpendicular to the axis of rotation of the turret and which are firmly connected to one another by a torsionally rigid cross member 9.
  • transducers 11 essentially of conventional construction — are arranged for ladles 12.
  • Fig. 1 (left) the hook 13 of a crane, not shown, is drawn, with the help of which the ladle, among other things. is inserted into or removed from the transducer.
  • the two levers 7 are pivotally mounted on the top of the upper base of the support ring 3.
  • the swiveling movement that occurs in the vertical plane is naturally limited accordingly.
  • open bearings 14, 14 ' are provided on the base 3a in plan view.
  • the bearing 14 is a spherical axial spherical plain bearing, while the bearing 14 'is a spherical rolling bearing.
  • the different designs of the bearings are only shown as an example, naturally bearings of a type are always used in a rotating tower. To protect against unwanted shock loads, this storage is provided with usual lifting safeguards, not shown.
  • each lever 7 The pivoting movements of each lever 7 are provided by a lifting means, in the example shown a pressure-operated cylinder-piston arrangement 15, which is arranged in the region of the axis of rotation of the turret, as within the support ring 3, essentially in a perpendicular direction.
  • the pressure cylinders 16 are articulated on the underside 3a of a crossbar 25, which is fastened to the support ring 3 with the aid of screws, at (18), while the piston (or plunger) 17 is articulated to the power arm 10 at (19).
  • the load arm is relatively long. This gives a large stroke with a small side shift.
  • the power arm 10 is advantageously articulated to the piston 17 of the cylinder-piston arrangement 15. This eliminates the need for a special end position safety device because the cylinder is positively connected to the lever in the end position. It is also possible that several Attack the cylinder on the power arm. However, the same torsional strength of the crossbar must be maintained so that the load can be held in the event of a cylinder failure.
  • Electro-mechanical drives can also be used as lifting devices, e.g. one or more lifting spindle elements subjected to tensile or pressure loads during the load stroke.
  • Weighing devices can of course also be provided in the revolving tower according to the invention, which can advantageously be arranged under the lever bearing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Jib Cranes (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Continuous Casting (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Steroid Compounds (AREA)
  • Crushing And Grinding (AREA)

Abstract

An articulated dual rotatable support is provided for casting ladles in which opposed supporting arms extend from an annular central support column which is rotatable. Each support arm may be raised and lowered independently of the other. Each support arm includes a U-shaped support arrangement carrying a ladle receiver. In addition, each support arm is supported in an open topped bearing arrangement so as to be easily lifted out of position for repairs or replacement. A power device for moving each support arm is provided connected to a transverse beam on the rotatable annular support and movable therewithin which power device is connected to an L- or Z-shaped power arm rigidly connected to each supporting arm to provide for the articulation of each supporting arm largely below the top of the annular support.

Description

Die Erfindung betrifft einen Drehturm für Gießpfannen mit zwei zueinander entgegengesetzt angeordneten, zur Drehachse im wesentlichen symmetrischen, an ihren freien Enden jeweils mit einer Aufnahmevorrichtung für eine Gießpfanne versehenen, in Draufsicht gabelförmig ausgebildeten Hebeln, die an einem um die Drehturmachse drehbaren Teil des Turmes kippbar gelagert und jeweils mit Hilfe mindestens eines einenends am Drehturm und anderenends am Hebel angelenkten Hubmittels, insbesondere einer druckmittelbetätigten Zylinder-Kolben-Anordnung, in vertikaler Ebene begrenzt verschwenkbar sind wobei jeder Hebel mit zwei mittels eines Querträgers fest verbundenen Armen versehen ist und mit entsprechenden Lenkern ein verformbares Gelenk-Kurbelgetriebe bildet.The invention relates to a turret for ladles with two mutually opposed, substantially symmetrical to the axis of rotation, at their free ends each provided with a receiving device for a ladle, fork-shaped in plan view, which is tiltably mounted on a part of the tower rotatable about the axis of the turret and can be pivoted to a limited extent in the vertical plane with the aid of at least one lifting means articulated at one end on the turret and at the other end on the lever, in particular a pressure medium-actuated cylinder-piston arrangement, each lever being provided with two arms firmly connected by means of a cross member and a deformable with corresponding links Articulated crank gear forms.

Bekanntlich ist es bei manchen Gießverfahren wegen den vorhandenen Betriebsbedingungen erforderlich, den Drehturm für den Transport von Gießpfannen so auszugestalten, daß die Gießpfannen höheneinstellbar sind.It is known that in some casting processes, because of the existing operating conditions, it is necessary to design the turret for the transport of ladles in such a way that the ladles can be adjusted in height.

Ein Drehturm dieser Art, bei welchem ein etwa in horizontaler Richtung drehbarer, zum Drehpunkt im wesentlichen symmetrischer Ausleger, der an seinen beiden Enden die Gießpfannen aufnimmt, ist z.B. aus der DE-AS-20 44 979 bekannt. Der Ausleger ist in vertikaler Ebene begrenzt aus seiner Horizontalstellung auf einem Lagerbock verschwenkbar gelagert. Beidseitig des Schwenkgelenks sind wechselweise beaufschlagbare Huborgane vorgesehen.A turret of this type, in which a cantilever which is rotatable approximately in the horizontal direction and essentially symmetrical to the pivot point and which receives the ladles at both ends, is e.g. known from DE-AS-20 44 979. The boom is pivotally supported in a vertical plane limited from its horizontal position on a pedestal. Alternating loadable lifting elements are provided on both sides of the swivel joint.

Bei der Anordnung des starren, zweiarmigen Auslegers sind die beiden Gießpfannen in der Höheneinstellung voneinander bewegungsabhängig. Diese Abhängigkeit hat sich jedoch als Nachteil erwiesen. Es ist nämlich in vielen Fällen (z.B. bei Sequenzguß) erforderlich, daß- während die eine, in Gießstellung befindliche Pfanne, abgegossen wird-eine zweite Pfanne am anderen Ende des Auslegers eingesetzt oder die bereits eingesetzte Pfanne noch vorbereitet wird. Dazu muß jedoch die zweite Pfanne unabhängig von der Stellung der ersten Pfanne selbständig höheneinstellbare sein.In the arrangement of the rigid, two-armed boom, the height of the two ladles is motion-dependent. However, this dependency has proven to be a disadvantage. In many cases (e.g. in the case of sequence casting) it is necessary for a second pan to be inserted at the other end of the boom, or the pan already in place, to be prepared while one pan is in the pouring position. For this, however, the second pan must be independently adjustable in height regardless of the position of the first pan.

Diese Bedingung erfüllt eine bekannter Drehturm (DE-OS 24 30 786), der zwei entgegengesetzt angeordnete, voneinander unabhängig arbeitende, einarmige Hebelpaare aufweist. Diese gabelförmigen Hebelpaare sind an ihren Enden an der Hauptsäule des Drehturms jeweils um einen horizontalen Schwenkzapfen schwenkbar gelagert, während am anderen Ende jedes gabelförmigen Armes eine Aufnahmevorrichtung für die Giepfanne vorgesehn ist. Die Heb-und Senkbewegung besorgen druckmittelbetätigte Zylinder-Kolben- Anordnungen, die jeweils einenends an der Säule und anderenends an dem Hebel angelenkt sind.This condition is met by a known rotating tower (DE-OS 24 30 786), which has two oppositely arranged, independently working, one-armed lever pairs. These fork-shaped pairs of levers are each pivotally mounted at their ends on the main column of the turret about a horizontal pivot pin, while a receiving device for the ladle is provided at the other end of each fork-shaped arm. The lifting and lowering movement are provided by pressure-actuated cylinder-piston arrangements, which are articulated at one end on the column and at the other end on the lever.

Die Hebel, die eine erhebliche Last tragen, sind in massiven Achsen gelagert. Diese Achsen sowie die genau ausgeführten Lager unterliegen bei den hohen Belastungen einem erheblichen Verschleiß, der noch durch die rauhen Bedingungen des Gießereibetriebs vergrößert wird.The levers, which carry a considerable load, are mounted in massive axes. These axles and the precisely designed bearings are subject to considerable wear under the high loads, which is further exacerbated by the rough conditions of the foundry operation.

Bei - Reparaturen oder Erneuerungen der Achsen bzw. Lagerungen müssen umständliche Montagearbeiten durchgeführt werden, um die Achsen oder Lager freizulegen.In the event of - repairs or renewal of the axles or bearings, laborious assembly work must be carried out to expose the axles or bearings.

Hinzu kommen noch die nachteiligen Erscheinungen der zylindrischen Lagerung, insbesondere die Gefahr einer Kantenpressung bei Verformung, Dehnung oder Ungenauigkeiten bei der Herstellung oder Montage. Die Lagerungen sind für Kontrolle und Wartung schwer zugänglich.In addition, there are the disadvantageous phenomena of the cylindrical bearing, in particular the risk of edge pressure during deformation, expansion or inaccuracies in the manufacture or assembly. The bearings are difficult to access for inspection and maintenance.

Vor allem aber werden durch die Anordnung der Hubvorrichtungen die Platzverhältnisse im Bereich der unter der Gießpfanne befindlichen Einrichtungen (Gießrinne) beeinträchtigt und somit die Arbeit des Bedienungspersonals erschwert. Dies bezieht sich auch auf die Arbeiten am Schieberverschluß beim Vorbereiten des Gießens.Above all, however, the arrangement of the lifting devices affects the space in the area of the facilities located under the ladle (casting trough) and thus complicates the work of the operating personnel. This also applies to the work on the slide lock when preparing the casting.

Ebenso ist im Bereich der Drehturmachse kein freier Raum vorhanden, der für die Beobachtung bzw. kleinere Eingriffe erforderlich ist.Likewise, there is no free space in the area of the turret axis that is required for observation or minor interventions.

Schließlich müssen die Druckmittelleitungen zu und von den Druckzylindern wegen der Anordnung der Zylinder weit außerhalb der Haputsäule des Drehturmes umständlich geführt werden.Finally, the pressure medium lines to and from the pressure cylinders have to be guided laboriously because of the arrangement of the cylinders far outside the Haput column of the turret.

Fur den Fall eines plötzlichen Druckabfalls in den Druckmittelleitungen müssen besondere Sicherungen vorgesehen werden.In the event of a sudden drop in pressure in the pressure medium lines, special fuses must be provided.

Ausgehend von dem zuletzt beschriebenen Stand der Technik nach der DE-A-24 30 786 liegt der Erfindung die Aufgabe zugrunde, einen Drehturm der eingangs genannten Art zur schaffen, der die aufgezeichneten Nachteile nicht besitzt, vielmehr so ausgebildet ist, daß insbesondere beim einfachen Aufbau die Wartungs- bzw. Montagearbeiten vereinfacht werden.Based on the last-described prior art according to DE-A-24 30 786, the invention has for its object to provide a turret of the type mentioned, which does not have the disadvantages recorded, but rather is designed so that in particular in the simple structure maintenance and assembly work are simplified.

Ferner soll die Bauhöhe des Drehturms im Bereich des Hebelsystems verkleinert werden.Furthermore, the height of the turret in the area of the lever system should be reduced.

Außerdem sollen die Betriebs- und Sicherheitsbedingungen verbessert werden.In addition, the operating and safety conditions are to be improved.

Unterhalb der Gießpfannen soll neben der Drehturm-Hauptsäule ein völlig freier Raum geschaffen werden.A completely free space is to be created beneath the ladles next to the main turret.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Kennzeichenteils des Patentanspruchs 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen enthalten.This object is achieved by the features of the characterizing part of claim 1. Advantageous developments of the invention are contained in the subclaims.

Dadurch, daß die Hebel nicht-wie bisherum eine in Hebel aufgenommene Achse schwenkbar gelagert sind sondern in in Draufsicht offenen Lagern, kann der Hebel, z.B. mit Hilfe eines Kranes, bei der Demontage einfach abgehoben bzw. bei der Montage in die Lager aufgelegt werden. Damit wird eine wesentliche Vereinfachung der Montage erreicht, was vor allem für die Wartung, Kontrolle und Reparaturen von Vorteil ist.The fact that the levers are not pivotally mounted, as before, around an axis accommodated in the lever, but in bearings which are open in plan view, the lever can be easily removed, for example with the aid of a crane be lifted off or placed in the bearings during assembly. This considerably simplifies assembly, which is particularly advantageous for maintenance, inspection and repairs.

Durch die Form der im wesentlichen senrecht nach unten abgewinkelten Kraftarme sowie durch die Anbringung der Druckzylinder, die mit den Kraftarmen gelenkig verbunden sind, an der Unterseite einer am Tragring befestigten Quertraverse wird ermöglicht, daß über den Hebeln im Mittenbereich des Drehturmes ein freier Raum verbleibt. Somit braucht bei einer Demontage des Zylinders bzw. der Hebel nur die mit dem Tragzylinder mittels Schrauben verbundene Quertraverse gelöst zu werden. Die schweren Teile sind dann unmittelbar zugänglich und können z.B. mit Hilfe eines Krans gehoben werden.The shape of the force arms, which are angled essentially vertically downwards, and the attachment of the pressure cylinders, which are articulated to the force arms, on the underside of a crossbar attached to the support ring enables a free space to remain above the levers in the center area of the turret. Thus, when the cylinder or the lever is dismantled, only the crossbar connected to the support cylinder by means of screws needs to be loosened. The heavy parts are then immediately accessible and can e.g. be lifted with the help of a crane.

Außerdem kann der freie Raum im Mittenbereich des Drehturmes für den Bau von Arbeitsbühnen genutzt werden, von denen aus die Pfannen besser zugänglich sind. Dies ist für die Beobachtung, Temperaturmessungen, Einbringung von Zuschlägen usw. von Bedeutung.In addition, the free space in the middle of the turret can be used to build work platforms from which the pans are more accessible. This is important for observation, temperature measurements, adding supplements, etc.

Durch die Anordnung der Hubmittel im Lichtraum des Tragringes sind keine Bauteile unter der Pfannenunterkante außerhalb des Tragringaußendruchmessers im Gießbereich vorhanden, und somit verbleibt der Raum unterhalb der Pfannen frei, so daß die Arbeiten bei der Gießvorbereitung (z.B. am Schieberverschluß) und beim Gießrinnen-Betrieb unbehinder durchgeführt werden können.Due to the arrangement of the lifting means in the clearance of the support ring, there are no components under the bottom edge of the pan outside the outer diameter of the support ring in the casting area, and thus the space below the pans remains free, so that the work during the preparation of the casting (e.g. on the slide closure) and during trough operation is unimpeded can be carried out.

Dank der mittigen Anordnung der druckmittelbetätigen Zylinder-Kolben-Anordnungen ist die Abringung von Druckmitteleitungen bzw. Steuerungen wesentlich vereinfacht.Thanks to the central arrangement of the pressure-actuated cylinder-piston arrangements, the removal of pressure medium lines or controls is considerably simplified.

Da die Lastseite ein ständiges Obergewicht gegenüber der Kraftseite hat, kann gegebenenfalls zwecks weiterer Vereinfachung der hydraulischen Leitungen ein teleskopartig ausgebildeter Plunger-Zylinder verwendet werden.Since the load side has a constant upper weight compared to the force side, a telescopic plunger cylinder can optionally be used to further simplify the hydraulic lines.

Die Erfindung wird anhand der Zeichnungen näher erläutert. Es zeigt:

  • Fig. 1 einen erfindungsgemäßen Drehturm für Gießpfannen in Seitenansicht und
  • Fig. 2 eine Draufsicht auf Fig. 1.
The invention is explained in more detail with reference to the drawings. It shows:
  • Fig. 1 shows a rotating tower for ladles according to the invention in side view
  • 2 is a top view of FIG. 1.

Wie Fig. 1 zeigt, ist auf einem Sockel 1 ein fester Fundamentrahmen 2 befestigt. Auf dem Rahmen 2 ist ein drehangetriebener Tragring 3 drehbar gelagert. Die drehachse des Traringes ist gleichzeitig die Drehachse des ganzen Drehturmes.1 shows, a fixed foundation frame 2 is attached to a base 1. A rotatably driven support ring 3 is rotatably mounted on the frame 2. The axis of rotation of the tare ring is also the axis of rotation of the entire turret.

Im unteren Teil des Tragringes 3 ist ein Kranz 4 vorgesehen, der mit den Zahnrädern 5 eines fest angeordneten Drehantriebs 6 (Fig. 2) im Eingriff steht.In the lower part of the support ring 3, a ring 4 is provided, which is in engagement with the gears 5 of a fixedly arranged rotary drive 6 (FIG. 2).

Der Tragring 3 ist verhältnismäßig niedrig ausgeführt. Die Seiten des Ringes sowie seine obere Grundfläche sind versteift, weil sie hohe Belastungen aufnehmen müssen.The support ring 3 is relatively low. The sides of the ring and its upper base are stiffened because they have to withstand high loads.

Der Drehturm ist mit zwei zueinander entgegengesetzt angeordneten, zur Drehachse im wesentlichen symmetrischen Hebeln 7 ausgestattet, die voneinander unabhängig arbeiten. Die Hebel sind in Draufsicht-wie Fig. 2 zeigtgabelförmig ausgebildet. Jeder Hebel besteht aus zwei im wesentlichen senkrecht zur Drehachse des Drehturms sich erstreckenden Lastarmen 8, die mit einem verdrehungssteifen Querträger 9 fest miteinander verbunden sind.The turret is equipped with two levers 7 arranged opposite to each other and essentially symmetrical to the axis of rotation, which operate independently of one another. The levers are fork-shaped in plan view, as shown in FIG. 2. Each lever consists of two load arms 8 which extend substantially perpendicular to the axis of rotation of the turret and which are firmly connected to one another by a torsionally rigid cross member 9.

Wie Fig. 2 zeigt, bilden die Lastarme mit dem Querträger in Draufsicht eine U-Form (Gabelform):

  • Am Querträger 9 ist jeweils ein Kraftarm 10 angeschweißt. Wie Fig. 2 zeigt, sind die Kraftarme 10 in horizontaler Ebene aus Konstruktionsgründen zueinander versetzt. In dem dargestellten Beispiel sind die Kraftarme 10 im wesentlichen senkrecht nach unten Z-förmig abgewinkelt, so daß das untere Endteil des Kraftarmes 10-in der Ansicht betrachtetetwa paralle zu den Lastarmen verläuft.
As shown in Fig. 2, the load arms form a U-shape (fork shape) with the cross member in plan view:
  • A power arm 10 is welded to the cross member 9. As FIG. 2 shows, the force arms 10 are offset from one another in the horizontal plane for construction reasons. In the example shown, the force arms 10 are angled substantially vertically downward in a Z-shape, so that the lower end part of the force arm 10, viewed in view, runs approximately parallel to the load arms.

An den freien Enden der Lastarme 8 sind Aufnehmer 11-im wesentlichen üblicher Bauweise-für Gießpfannen 12 angeordnet. In Fig. 1 (links) ist der Haken 13 eines nicht dargestellten Kranes gezeichnet, mit dessen Hilfe die Gießpfanne u.a. in den Aufnehmer eingesetzt oder von diesem abgehoben wird.At the free ends of the load arms 8, transducers 11 — essentially of conventional construction — are arranged for ladles 12. In Fig. 1 (left) the hook 13 of a crane, not shown, is drawn, with the help of which the ladle, among other things. is inserted into or removed from the transducer.

Die beiden Hebel 7 sind auf der Oberseite der oberen Grundfläche des Tragringes 3 verschwenkbar gelagert. Die Schwenkbewegung, die in vertikaler Ebene erfolgt, ist naturgemäß entsprechend begrenzt. Für die Lagerung der Hebel 7 sind auf der Grundfläche 3a in Draufsicht offene Lager 14, 14' vorgesehen. In dem dargestellten Beispiel ist das Lager 14 ein kugeliges Axialgelenklager, während das Lager 14' ein kugeliges Abwälzlager ist. Die unterschiedlichen Ausführungen der Lager sind nur als Beispiel dargestellt, naturgemäß werden bei einem Drehturm immer Lager einer Art verwendet. Als Schutz gegen ungewollte Stoßbelastung ist diese Lagerung mit üblichen, nicht dargestellten Abhebesicherungen versehen.The two levers 7 are pivotally mounted on the top of the upper base of the support ring 3. The swiveling movement that occurs in the vertical plane is naturally limited accordingly. For the mounting of the levers 7, open bearings 14, 14 'are provided on the base 3a in plan view. In the example shown, the bearing 14 is a spherical axial spherical plain bearing, while the bearing 14 'is a spherical rolling bearing. The different designs of the bearings are only shown as an example, naturally bearings of a type are always used in a rotating tower. To protect against unwanted shock loads, this storage is provided with usual lifting safeguards, not shown.

Die Schwenkbewegungen jedes Hebels 7 besorgt ein Hubmittel, in dem dargestellten Beispiel eine druckmittelbetätigete Zylinder-Kolben-Anordnung 15, die im Bereich der Drehachse des Drehturmes, als innerhalb des Tragringes 3, im wesentlichen in sekkrechter Richtung angeordnet ist. Die Druckzylinder 16 sind an der Unterseite 3a einer Quertraverse 25, die am Tragring 3 mit Hilfe von Schrauben befestigt ist, bei (18) angelenkt, währen der Kolben (bzw. Plunger) 17 bei (19) mit dem Kraftarm 10 gelenkig verbunden ist.The pivoting movements of each lever 7 are provided by a lifting means, in the example shown a pressure-operated cylinder-piston arrangement 15, which is arranged in the region of the axis of rotation of the turret, as within the support ring 3, essentially in a perpendicular direction. The pressure cylinders 16 are articulated on the underside 3a of a crossbar 25, which is fastened to the support ring 3 with the aid of screws, at (18), while the piston (or plunger) 17 is articulated to the power arm 10 at (19).

Wie aus den Zeichnungen ersichtlich ist, ist der Lastarm verhältnismäßig lang. Somit ist ein großer Hub bei kleiner Seitenverlagerung gegeben.As can be seen from the drawings, the load arm is relatively long. This gives a large stroke with a small side shift.

In dem dargestellten Beispiel ist der Kraftarm 10 vorteilhafterweise mit dem Kolben 17 der Zylinder-Kolben-Anordnung 15 gelenkig verbunden. Durch entfällt eine spezielle Endlagensicherung, weil der Zylinder mit dem Hebel in der Endstellung formschlüsig verbunden ist. Ebnso ist es möglich, daß mehrere Zylinder an den Kraftarm angreifen. Dabei muß jedoch die gleiche Drehfestigkeit der Quertraverse erhalten bleiben, damit bei evtl. Ausfall eines Zylinders die Last gehalten werden kann.In the example shown, the power arm 10 is advantageously articulated to the piston 17 of the cylinder-piston arrangement 15. This eliminates the need for a special end position safety device because the cylinder is positively connected to the lever in the end position. It is also possible that several Attack the cylinder on the power arm. However, the same torsional strength of the crossbar must be maintained so that the load can be held in the event of a cylinder failure.

Als Hubmittel können auch elektro-mechanische Antriebe verwendet werden, z.B. ein oder mehrere beim Lasthub zug- bzw. druckbelästete Hubspindelelemente.Electro-mechanical drives can also be used as lifting devices, e.g. one or more lifting spindle elements subjected to tensile or pressure loads during the load stroke.

Bei dem erfindungsgemäßen Drehturm können naturgemäß auch Wiegeeinrichtungen vorgesehen werden, die vorteilhafterweise unter der Hebellagerung angeordnet sein können.Weighing devices can of course also be provided in the revolving tower according to the invention, which can advantageously be arranged under the lever bearing.

Claims (8)

1. Rotary turret for pouring ladles (12) with two opposing levers (7) of clevis design (plan view) arranged mainly symmetrically to the turret axis of rotation, each with a receiving device (11) for a pouring ladle (12) at its free end and hinged (14) to a part (3) of the turret arranged to rotate about the axis of rotation of the turret, each with a lifting device (15) connected to the turret at one end and to the lever (7) at the other, such lifting device (15) consisting in particular of an arrangement of pneumatic cylinders and pistons designed to permit limited vertical movement of the levers (7), each lever (7) having appropriate steering arms and so forming an adjustable articulated guide frame, characterized in that the two load arms (8) of the clevis-shaped lever (7) are connected by their transverse member (9) to a force arm (10) and the lever (7) is hinged in the open (plan view) bearings (14, 14') connected to the moving part of the turret or a trunnion ring (3).
2. Rotating turret according to Claim 1, characterized by the fact that the force arm (10) is angled mainly vertically downwards.
3. Rotating turret according to claim 2, characterized by the fact that the force arm (10) is angled in an L or Z shape.
4. Rotating turret according to Claims 2 or 3, characterized by the fact that the force arm (10) extends into the clear space of trunnion ring (3).
5. Rotating turret according to Claims 1-4, characterized by the fact that the mainly vertical lifting device, possibly a cylinder/piston arrangement (15) is hinged at one end to the underside of a cross member (25) in the vicinity of the axis of rotation, the cross member (25) being connected to the trunnion ring (3).
6. Rotating turret to Claim 5, characterized by the fact that the piston (17) or plunger of the cylinder/piston arrangement (15) is hinged to the force arm (10).
7. Rotating turret according to Claim 1, characterized by the fact that the bearing (14) is a spherical axial bearing.
8. Rotating turret according to Claim 1, characterized by the fact that the bearing (14') is a spherical antifriction bearing.
EP80100163A 1979-04-20 1980-01-14 Revolving turret for ladles Expired EP0017696B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80100163T ATE3822T1 (en) 1979-04-20 1980-01-14 ROTATING TOWER FOR LADLES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2916042A DE2916042C3 (en) 1979-04-20 1979-04-20 Rotating tower for two independently raising and lowering ladles
DE2916042 1979-04-20

Publications (3)

Publication Number Publication Date
EP0017696A1 EP0017696A1 (en) 1980-10-29
EP0017696B1 true EP0017696B1 (en) 1983-06-22
EP0017696B2 EP0017696B2 (en) 1987-12-09

Family

ID=6068847

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80100163A Expired EP0017696B2 (en) 1979-04-20 1980-01-14 Revolving turret for ladles

Country Status (7)

Country Link
US (1) US4286738A (en)
EP (1) EP0017696B2 (en)
JP (1) JPS55141371A (en)
AT (1) ATE3822T1 (en)
BR (1) BR8002396A (en)
CA (1) CA1151391A (en)
DE (1) DE2916042C3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3038876C2 (en) * 1980-10-15 1985-02-21 Benteler-Werke AG, 4790 Paderborn Ladle turret
IT1138691B (en) * 1981-10-02 1986-09-17 Innocenti Santeustacchio Spa SWIVEL TOWER FOR CONTINUOUS CASTING SYSTEMS
AT371395B (en) * 1981-10-09 1983-06-27 Voest Alpine Ag CARRIER FOR A METALLURGICAL TUBE
FR2535633A1 (en) * 1982-11-10 1984-05-11 Clecim Sa Steel works trunnion.
US4603841A (en) * 1984-06-14 1986-08-05 Voest-Alpine International Corporation Ladle support machine
DE3671850D1 (en) * 1985-10-04 1990-07-19 Danieli Off Mecc DEVICE FOR HANDLING CUPCUPLES.
IT1201815B (en) * 1986-09-25 1989-02-02 Danieli Off Mecc TRANSFORMATION PLANT OF A METAL CHARGE IN SEMIPRODUCTS AND RELATED MELTING AND CASTING PROCESS
FR2609253B1 (en) * 1987-01-06 1990-04-06 Clecim Sa POCKET POCKET
AT391286B (en) * 1989-02-15 1990-09-10 Voest Alpine Ind Anlagen CARRYING DEVICE FOR CASTING MOLDS IN A CONTINUOUS CASTING SYSTEM
GB0208806D0 (en) * 2002-04-17 2002-05-29 Rieke Corp Dispenser pumps
DE102006026330B3 (en) * 2006-06-02 2007-10-31 Vai Fuchs Gmbh Lifting device for lifting a ladle filled with steel from a carriage onto immersion tubes of a vacuum treatment vessel comprises lifting arms on one end for interacting with holders formed on a ladle
CN102756118B (en) * 2012-08-07 2014-12-10 潍坊富晟达机械配套有限公司 Automatic molten steel casting machine
CN107321967B (en) * 2016-04-29 2019-09-13 上海十三冶建设有限公司 The substep adjustment method of conticaster ladle turret electrical system
CN113668305B (en) * 2021-06-29 2023-05-23 上海二十冶建设有限公司 Measuring and installing method for door type semi-door type tundish car track
CN113967732B (en) * 2021-09-30 2023-05-23 上海二十冶建设有限公司 Assembled slideway for replacing upper revolving body of bale revolving platform and installation method
CN114535557B (en) * 2022-01-10 2023-11-03 新余钢铁股份有限公司 Disassembling method for swing arm knuckle bearing of continuous casting ladle turret

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Also Published As

Publication number Publication date
ATE3822T1 (en) 1983-07-15
EP0017696B2 (en) 1987-12-09
DE2916042A1 (en) 1980-10-30
DE2916042B2 (en) 1981-07-16
BR8002396A (en) 1980-12-02
CA1151391A (en) 1983-08-09
EP0017696A1 (en) 1980-10-29
JPS55141371A (en) 1980-11-05
US4286738A (en) 1981-09-01
DE2916042C3 (en) 1988-09-29

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