EP0017696B2 - Revolving turret for ladles - Google Patents

Revolving turret for ladles Download PDF

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Publication number
EP0017696B2
EP0017696B2 EP80100163A EP80100163A EP0017696B2 EP 0017696 B2 EP0017696 B2 EP 0017696B2 EP 80100163 A EP80100163 A EP 80100163A EP 80100163 A EP80100163 A EP 80100163A EP 0017696 B2 EP0017696 B2 EP 0017696B2
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EP
European Patent Office
Prior art keywords
turret
support
rotating turret
arm
force arm
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Expired
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EP80100163A
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German (de)
French (fr)
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EP0017696A1 (en
EP0017696B1 (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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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/12Travelling ladles or similar containers; Cars for ladles
    • B22D41/13Ladle 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 pivotally 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 revolving tower 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-2044979.
  • 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 depends on the movement.
  • this dependency has proven to be a disadvantage.
  • the second pan must be adjustable in height independently of the position of the first pan.
  • 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 maintenance is particularly easy with the simple structure - or assembly work can be simplified.
  • levers are not - as before - pivoted about an axis included in the lever, but in bearings that are open in plan view, the lever, e.g. with the help of a crane, simply lifted off during dismantling 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 rotationally driven support ring 3 is rotatably supported.
  • the axis of rotation of the support 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 designed to be 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.
  • 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.
  • 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.
  • the force arms 10 are offset from one another in the horizontal plane for construction reasons.
  • 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 the view - runs approximately parallel to the load arms.
  • transducers 11 - essentially of conventional construction - are arranged for ladles 12.
  • the hook 13 of a crane, not shown, is drawn, with the help of which the ladle etc. 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, which takes place 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 versions of the bearings are only shown as an example, naturally bearings of one type are always used in a rotating tower. To protect against unwanted shock loads, this storage is provided with the 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-actuated 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 the vertical 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 force 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 for several cylinders to engage 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 that are subjected to tensile or compressive loads during the load stroke.
  • weighing devices can naturally also be provided, which can advantageously be arranged under the lever bearing.

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 pivotally 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 Giesspfanne höheneinstellbar sind.As is known, in some casting processes, because of the existing operating conditions, it is necessary to design the rotating tower for the transport of ladles in such a way that the ladle 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-2044979 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 revolving tower 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-2044979. 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 höheneinstellbar sein.In the arrangement of the rigid, two-arm boom, the height of the two ladles depends on the movement. However, this dependency has proven to be a disadvantage. In many cases (e.g. in the case of sequence casting) it is necessary that - while one of the pans in the pouring position is poured - a second pan is inserted at the other end of the boom or the pan that has already been inserted is still being prepared. To do this, however, the second pan must be adjustable in height independently of the position of the first pan.

Diese Bedingung erfüllt eine bekannter Drehturm (DE-OS 2430786), 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 Giesspfanne vorgesehen 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 2430786), which has two oppositely arranged, independently working, one-armed lever pairs. These fork-shaped pairs of levers are each pivotally supported 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 Lagerfreizulegen.When repairs or replacing 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 impairs the space in the area of the facilities located under the pouring ladle (pouring channel) 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 Hauptsäule des Drehturmes umständlich geführt werden.Finally, the pressure medium lines to and from the pressure cylinders have to be laboriously routed because of the arrangement of the cylinders far outside the main column of the turret.

Für 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-2430786 liegt der Erfindung die Aufgabe zugrunde, einen Drehturm der eingangs genannten Art zu 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-2430786, 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 maintenance is particularly easy with the simple structure - or assembly work can be 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.Beneath the pouring ladle, a completely free space is to be created 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 according to the invention by the features of the characterizing part of patent claim 1. Advantageous developments of the invention are contained in the subclaims.

Dadurch, dass die Hebel nicht - wie bisher - um 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.Due to the fact that the levers are not - as before - pivoted about an axis included in the lever, but in bearings that are open in plan view, the lever, e.g. with the help of a crane, simply lifted off during dismantling 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 senkrecht 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.Due to 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 cross attached to the support ring traverse enables a free space to remain above the levers in the middle 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 be lifted using a crane, for example.

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 Tragringaussendurchmessers 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 unbehindert durchgeführt werden können.Due to the arrangement of the lifting devices in the clearance space 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 valve) and during trough operation is unimpeded can be carried out.

Dank der mittigen Anordnung der druckmittelbetätigen Zylinder-Kolben-Anordnungen ist die Anbringung von Druckmittelleitungen bzw. Steuerungen wesentlich vereinfacht.Thanks to the central arrangement of the pressure-actuated cylinder-piston arrangements, the attachment 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 an inventive turret for ladles 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 belagert. Die Drehachse des Tragringes ist gleichzeitig die Drehachse des ganzen Drehturmes.1 shows, a fixed foundation frame 2 is attached to a base 1. On the frame 2, a rotationally driven support ring 3 is rotatably supported. The axis of rotation of the support 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 designed to be 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 zeigt - gabelförmig 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. Wie Fig. 2 zeigt, bilden die Lastarme mit dem Querträger in Draufsicht eine U-Form (Gabelform).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. In plan view - as shown in FIG. 2 - the levers are fork-shaped. 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. As shown in Fig. 2, the load arms form a U-shape (fork shape) with the cross member in plan view.

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 betrachtet - etwa parallel zu den Lastarmen verläuft.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 the 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 etc. 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, which takes place 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 versions of the bearings are only shown as an example, naturally bearings of one type are always used in a rotating tower. To protect against unwanted shock loads, this storage is provided with the usual lifting safeguards (not shown).

Die Schwenkbewegungen jedes Hebels 7 besorgt ein Hubmittel, in dem dargestellten Beispiel eine druckmittelbetätigte Zylinder-Kolben-Anordnung 15, die im Bereich der Drehachse des Drehturmes, als innerhalb des Tragringes 3, im wesentlichen in senkrechter 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, während 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-actuated 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 the vertical 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 dargestellen Beispiel ist der Kraftarm 10 vorteilhafterweise mit dem Kolben 17 der Zylinder-Kolben-Anordnung 15 gelenkig verbunden. Dadurch entfällt eine spezielle Endlagensicherung, weil der Zylinder mit dem Hebel in der Endstellung formschlüssig verbunden ist. Ebenso 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 force 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 for several cylinders to engage 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. druckbelastete Hubspindelelemente.Electro-mechanical drives can also be used as lifting devices, e.g. one or more lifting spindle elements that are subjected to tensile or compressive loads during the load stroke.

Bei dem erfindungsgemässen Drehturm können naturgemäss auch Wiegeeinrichtungen vorgesehen werden, die vorteilhafterweise unter der Hebellagerung angeordnet sein können.With the revolving tower according to the invention, weighing devices can naturally also be provided, which can advantageously be arranged under the lever bearing.

Claims (8)

1. Rotary turret for pouring ladles (12) with two opposed (in plan view) clevis levers (7) essentially arranged symmetrically to the turret axis, each with a receiving device (11) for a pouring ladle (12) at the free end and hinged (14) rotatably to a moving part (3) of the turret at the axis of rotation, with at least one articulated lifting device (15) connected to the turret at one end and to the lever (7) at the other, the said lifting device (15) consisting essentially of pneumatic cylinders and pistons in an assembly designed to permit limited vertical movement of the levers (7), each featuring appropriate steering arms and thus forming an adjustable articulated guide frame, characterized by: the two load arms (8) of the clevis lever (7) being connected by their cross member (9) to a single force arm (10) and the two-armed lever (7) tiltably carried in the (plan view) open bearings (14 and 14') connected to the moving part of the turret, e.a. at a trunnion ring (3).
2. Rotating turret, to Claim 1, characterized by:
the force arm (10) essentially being angled vertically downwards.
3. Rotating turret, to Claim 2, characterized by:
the force arm (10) being angled downwards to form an LorZshape.
4. Rotating turret, to Claim 2, or 3, characterized by:
the force arm (10) extending into the clear space of the trunnion ring (3).
5. Rotating turret, to Claims 1 to 4, characterized by:
the essentially vertical lifting device, possibly a cylinder/piston assembly (15), being hinged at one end to the underside of a cross member (25) off the trunnion ring (3) in the vicinity of the axis of rotation.
6. Rotating turret, to Claim 5, characterized by:
the piston (17) or plunger of the cylinder/piston assembly (15) being hinged to the force arm (10).
7. Rotating turret, to Claim 1, characterized by:
the bearing (14) being a spherical axial bearing.
8. Rotating turret, to claim 1, characterized by:
the bearing (14') being a spherical anti-friction 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 DE2916042B2 (en) 1979-04-20 1979-04-20 Rotating tower for two pouring ladles that can be raised and lowered independently of each other
DE2916042 1979-04-20

Publications (3)

Publication Number Publication Date
EP0017696A1 EP0017696A1 (en) 1980-10-29
EP0017696B1 EP0017696B1 (en) 1983-06-22
EP0017696B2 true 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) DE2916042B2 (en)

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* Cited by examiner, † Cited by third party
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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
EP0219891B1 (en) * 1985-10-04 1990-06-13 DANIELI & C. OFFICINE MECCANICHE S.p.A. Device to handle ladles
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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US3531074A (en) * 1968-03-18 1970-09-29 Inductotherm Corp Tilting and supporting apparatus for foundry vessels
DE1963147C3 (en) * 1969-12-17 1974-02-14 Demag Ag, 4100 Duisburg Storage of distribution channels on a carousel device for casting ladles in continuous casting plants
DE2044979C3 (en) * 1970-09-11 1978-08-17 Schloemann-Siemag Ag, 4000 Duesseldorf Rotating tower for ladles
JPS4944004Y2 (en) * 1971-09-28 1974-12-03
BE791944R (en) * 1971-11-27 1973-03-16 Schloemann Ag ROTATING TURRET FOR POCKETS
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Also Published As

Publication number Publication date
JPS55141371A (en) 1980-11-05
CA1151391A (en) 1983-08-09
EP0017696A1 (en) 1980-10-29
ATE3822T1 (en) 1983-07-15
BR8002396A (en) 1980-12-02
DE2916042B2 (en) 1981-07-16
EP0017696B1 (en) 1983-06-22
US4286738A (en) 1981-09-01
DE2916042C3 (en) 1988-09-29
DE2916042A1 (en) 1980-10-30

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