EP0383747A2 - Supporting arrangement for casting ladles at a continuous casting plant - Google Patents
Supporting arrangement for casting ladles at a continuous casting plant Download PDFInfo
- Publication number
- EP0383747A2 EP0383747A2 EP90890030A EP90890030A EP0383747A2 EP 0383747 A2 EP0383747 A2 EP 0383747A2 EP 90890030 A EP90890030 A EP 90890030A EP 90890030 A EP90890030 A EP 90890030A EP 0383747 A2 EP0383747 A2 EP 0383747A2
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- European Patent Office
- Prior art keywords
- articulated
- support arm
- joint
- links
- pressure medium
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- 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.)
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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 support device for ladles in a continuous caster, with a stationary fixed base and a rotatable with respect to this and rotatable by means of a rotary base, on which via a joint parallelogram system with pivotable about horizontal axes and arranged one above the other at least one support arm system for receiving a casting ladle is articulated, the support arm system being able to be raised and lowered relative to the rotary base by means of at least one pressure medium cylinder.
- the articulated parallelogram system is formed by upper and lower links, the upper links and the lower links being connected to one another by means of supports or connecting rods.
- the support arm system is formed by a U-shaped plan, encompassing a ladle, at the free ends of which the ladle is supported and on the cross member connecting the legs of the U, which is designed as a box girder, a pressure medium cylinder engages, with the aid of which the support arm system can be raised and lowered.
- the upper links of the articulated parallelogram system are also articulated on this box girder.
- a support device for ladles in a continuous casting installation with an articulated parallelogram system and a support arm system is also known from DE-A - 24 30 786.
- pressure medium cylinders which are supported at one end in each case on a rotating column of the support device, directly engage the other ends at the
- Handlebars whereby the handlebars are also subjected to bending by the pressure medium cylinders and are therefore correspondingly complex to construct.
- two pressure medium cylinders are required for this support arm system, which must work synchronously, which represents a considerable effort.
- this known construction has a considerable overall height.
- the invention aims to avoid these disadvantages and difficulties and has the object to provide a support device of the type described, the handlebars of the articulated parallelogram system are only stressed by tensile and compressive forces, so that these links can be built particularly easily.
- the smallest possible number of crossbeams should be used, so that the parts of the carrying device, in particular their pressure cylinder, are easily accessible from above and a repair can be carried out quickly and cheaply with the aid of the indoor crane.
- the support arm system is formed by two mutually independent support arms, each support arm being articulated on a lower and an upper link of the articulated parallelogram system, - That the upper link of the articulated parallelogram system are combined at their ends facing away from the rotary base by means of a crossbar to form a rigid, U-shaped unit in plan, and - That the crossbar is supported on the at least one pressure medium cylinder by means of a swivel joint, the swivel joint being aligned with the joints of the upper links arranged at the ends facing away from the rotary base.
- a preferred material-saving construction is characterized in that the rotating base is formed by a rotating platform and by vertically upstanding stands, which are arranged in the region of the outer periphery of the rotating platform, and in that the upper and lower links are articulated on the stands.
- the upper and lower links are advantageously articulated on the stands with joints lying one above the other in the vertical direction.
- a particularly simple construction with two diametrically opposed articulated parallelogram systems and associated support arm systems for receiving one ladle each is characterized in that the upper and the lower links of both articulated parallelogram systems are articulated on the stands with aligned axes.
- the upper links are preferably L-shaped in side view, each upper link being formed in each case by an arm extending from the joint on the rotary base to the joint on the support arm and an arm of the L extending upward from the joint of the support arm, and is the crossbar in each case connected to the upper links at the upper end of the arm extending upwards from the joint of the support arm.
- FIG. 1 shows a schematic side view, which is partially cut.
- FIG. 2 also shows a view in the direction of arrow 11 in FIG. 1, partly in section.
- FIG. 3 is a sectional view along line III-III in FIG. 2.
- the carrying device 1 has an annular fixed base 3 which is fixedly mounted on a casting platform 2 of a continuous casting installation and has a low overall height compared to the diameter.
- a rotary base 4 by means of a slewing ring bearing 5 about a vertical axis of rotation 6, which is aligned with the central axis of the fixed base 3, rotatably mounted, the rotary movement being accomplished by means of rotary drive motors 7, which are mounted on a bracket 8 of the fixed base 3.
- the motors 7 drive Pinion 9 on, which engage in a ring gear 10 arranged on the rotating base 4.
- the rotating base 4 is formed by a rotating platform 11, from which two parallel vertical stands 12, 13, each fastened in the region of the outer periphery of the rotating platform and diametrically opposite one another, project.
- Each lifting device is formed by an articulated parallelogram system 17, which is articulated on the stands 12, 13, and a support arm system 18, which is articulated on the articulated parallelogram system 17, and a pressure medium cylinder 19, such as a hydraulic cylinder.
- Each articulated parallelogram system 17 has two upper links 20, 21 and two lower links 22, 23, each of which has an upper link 20, 21 and a lower link 22, 23 pivotably connected to one of the stands 12, 13 in the vertical direction are.
- two parallel parallelograms 24, 25 which are parallel to one another and extend in the vertical direction are formed.
- the upper links 20, 21 of these two articulated parallelograms 24, 25 are combined by a crossbar 26 to form a rigid U-shaped unit 27, seen in plan, whereby a synchronous movement of the two articulated parallelograms 24, 25 is ensured.
- each stand 12, 13 is formed by two parallel plates 28, the joints 29 of the joint parallelograms 24, 25 being formed by joint bolts 30 which extend from one plate 28 to the other.
- the respective upper link 20, 21 and lower link 22, 23 of the two articulated parallelogram systems 17 of the lifting devices 14, 15 are aligned to save space, so that the upper and lower links 20, 21; 22, 23 of the two joint parallelogram systems 17 are each mounted on one and the same joint bolt 30.
- each of the two articulated parallelograms 24, 25 is formed by the support arm system 18, which has two mutually independent support arms 31, 32, which are L-shaped in side view.
- Each support arm 31, 32 has a horizontal part 33 and a vertical part 34, the vertical part 34 being articulated to a lower link 22, 23 and an upper link 20, 21, and the horizontal part 33 extending from the vertical part 34 extends outside and carries at its free end a receptacle 35 for the ladle 16.
- the the handlebars 20, 21; 22, 23 with the stands 12; 13 connecting joints 29 as well as the lower links 22, 23 with the support arms 31, 32 connecting joints 36 are designed as spherically movable joints in a limited area.
- the vertical movement of the support arm system 18 is achieved by means of the pressure medium cylinder 19, which is articulated on the one hand by means of a bearing 37 on the rotating platform 11 and on the other hand by means of a swivel joint 38 on the crossbar 26 of the articulated parallelogram system 17.
- the swivel joint 38 connecting the pressure medium cylinder 19 to the crossbeam 26 is arranged such that its bearing axis 39 is aligned with the axes 40 of the joints 41 connecting the two upper links 20, 21, each with a support arm 31, 32, and the line of action 42 of that of the pressure medium cylinder 19 force caused by the imaginary horizontal connecting line of the joints 41 connecting the upper links 20, 21 to the support arms 31, 32.
- the upper link 20, 21 are only subjected to tension, so that they can be designed to save weight and cost.
- the upper links 20, 21 are essentially L-shaped when viewed from the side, with a first arm 43 of the L, which is on the one hand on the stand 13, 14 and on the other hand on the support arm 31, 32 is articulated, extends parallel to the respective lower link 22, 23 and a second arm 44 of the L extends at right angles to the first arm 43 of the L vertically upward.
- a second arm 44 of the L extends at right angles to the first arm 43 of the L vertically upward.
- At the upper end of the second arm 44 is the horizontal to the opposite upper link 20, 21 and parallel to the horizontal axes 40, 45, 46, 47 of the joints 29, 36, 41 of the Joint parallelograms 24, 25 extending crossbar 26 welded.
- Reinforcing ribs 48 serve to stiffen the U-shaped structural unit 27 formed by the upper links 20, 21 and the crossbeams 26.
- this assembly 27 it is possible in a simple manner to fasten the swivel joint 38, with which the pressure medium cylinder 19 is articulated on the crossbar 26, below the crossbar 26, so that the crossbar 26 is not weakened by recesses and a Alignment of the swivel joint 38 in every position of the links 20, 21, 22, 23 with the joints 41 is ensured.
- the expansion of a pressure medium cylinder 19 is particularly simple since it is only necessary to lift the articulated parallelogram system 17 either with the defective pressure medium cylinder itself or by means of an external lifting means and the pressure medium cylinder by means of a crane upwards through the free space between the cross member 26 and to remove the two links 20, 21 from the support device.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Manipulator (AREA)
Abstract
Eine Trageinrichtung (1) für Gießpfannen (16) weist einen ortsfest gelagerten Festsockel (3) und einen gegenüber diesem drehbar gelagerten Drehsockel (4) auf, an dem über jeweils ein Gelenkparallelogramm-System (17) mit schwenkbaren Lenkern (20, 21; 22, 23) ein Tragarmsystem (18) angelenkt ist, wobei jedes Tragarmsystem (18) mittels eines Druckmittelzylinders (19) heb- und senkbar ist. Um das Gewicht der Trageinrichtung (1) zu verringern und Reparaturarbeiten am Druckmittelzylinder (19) zu erleichtern, ist das Tragarmsystem (18) von zwei voneinander unabhängigen Tragarmen (31; 32) gebildet, wobei jeder Tragarm (31; 32) für sich an einem unteren und einem oberen Lenker (22, 20; 23, 21) des Gelenkparallelogramm-Systems (17) angelenkt ist, und sind die oberen Lenker (20, 21) des Gelenkparallelogramm-Systems (17) an ihren vom Drehsockel (4) abgewandten Enden mittels eines Querbalkens (26) zu einer starren, im Grundriß U-förmigen Einheit (27) zusammengefaßt, wobei der Querbalken (26) an dem Druckmittelzylinder (19) mittels eines Schwenkgelenkes (38) abgestützt ist und das Schwenkgelenk (38) fluchtend zu den an den vom Drehsockel (4) abgewandten Enden angeordneten Gelenken (41) der oberen Lenker (20, 21) liegt.A support device (1) for ladles (16) has a fixed base (3) and a rotating base (4) which is rotatably mounted relative to it, on each of which a joint parallelogram system (17) with pivotable links (20, 21; 22 , 23) a support arm system (18) is articulated, each support arm system (18) being able to be raised and lowered by means of a pressure medium cylinder (19). In order to reduce the weight of the support device (1) and to facilitate repair work on the pressure medium cylinder (19), the support arm system (18) is formed by two mutually independent support arms (31; 32), each support arm (31; 32) on its own lower and an upper link (22, 20; 23, 21) of the articulated parallelogram system (17) is articulated, and the upper links (20, 21) of the articulated parallelogram system (17) at their ends facing away from the rotating base (4) by means of a crossbar (26) to form a rigid, U-shaped unit (27), the crossbar (26) is supported on the pressure medium cylinder (19) by means of a swivel joint (38) and the swivel joint (38) is aligned with the at the ends of the upper links (20, 21) located at the ends of the joints (41) facing away from the rotary base (4).
Description
Die Erfindung betrifft eine Trageinrichtung für Gießpfannen bei einer Stranggießanlage, mit einem ortsfest gelagerten Festsockel und einem gegenüber diesem drehbar gelagerten und mittels eines Drehantriebes drehbaren Drehsockel, an dem über ein Gelenkparallelogramm-System mit um horizontale Achsen schwenkbaren und übereinander angeordneten Lenkern mindestens ein Tragarmsystem zur Aufnahme einer Gießpfanne angelenkt ist, wobei das Tragarmsystem mittels mindestens eines Druckmittelzylinders gegenüber dem Drehsockel heb- und senkbar ist.The invention relates to a support device for ladles in a continuous caster, with a stationary fixed base and a rotatable with respect to this and rotatable by means of a rotary base, on which via a joint parallelogram system with pivotable about horizontal axes and arranged one above the other at least one support arm system for receiving a casting ladle is articulated, the support arm system being able to be raised and lowered relative to the rotary base by means of at least one pressure medium cylinder.
Eine Einrichtung dieser Art ist aus der EP-A-0 277 846 bekannt. Bei dieser Einrichtung ist das Gelenkparallelogramm-System von oberen und unteren Lenkern gebildet, wobei die jeweils oberen Lenker und die jeweils unteren Lenker miteinander mittels Träger bzw. Verbindungsstangen verbunden sind. Das Tragarmsystem wird von einem im Grundriß U-förmigen, eine Gießpfanne umgreifenden Rahmen gebildet, an dessen freien Enden die Gießpfanne abgestützt ist und an dessen die Schenkel des U verbindenden Querträger, der als Kastenträger ausgebildet ist, ein Druckmittelzylinder angreift, mit dessen Hilfe das Tragarmsystem heb- und senkbar ist. An diesem Kastenträger sind weiters die oberen Lenker des Gelenkparallelogramm-Systems angelenkt.A device of this type is known from EP-A-0 277 846. In this device, the articulated parallelogram system is formed by upper and lower links, the upper links and the lower links being connected to one another by means of supports or connecting rods. The support arm system is formed by a U-shaped plan, encompassing a ladle, at the free ends of which the ladle is supported and on the cross member connecting the legs of the U, which is designed as a box girder, a pressure medium cylinder engages, with the aid of which the support arm system can be raised and lowered. The upper links of the articulated parallelogram system are also articulated on this box girder.
Die Vielzahl der Querträger bzw. Verbindungsstangen bedingt eine schwere, materialaufwendige Konstruktion, die dementsprechend teuer ist. Zudem ist die bekannte Konstruktion nur schwer von oben zugänglich, so daß ein Austausch der Druckmittelzylinder im Reparaturfall mittels eines Kranes von oben kaum durchführbar ist, ohne die Trageinrichtung in ihre einzelnen Elemente zerlegen zu müssen.The large number of cross members or connecting rods results in a heavy, material-intensive construction, which is accordingly expensive. In addition, the known construction is difficult to access from above, so that an exchange of the pressure medium cylinders in the event of repair by means of a crane can hardly be carried out from above without having to disassemble the carrying device into its individual elements.
Eine Trageinrichtung für Gießpfannen bei einer Stranggießanlage mit einem Gelenkparallelogramm-System und einem Tragarmsystem ist weiters aus der DE-A - 24 30 786 bekannt. Bei dieser Trageinrichtung greifen Druckmittelzylinder, die mit jeweils einem Ende an einer Drehsäule der Trageinrichtung abgestützt sind, mit ihren anderen Enden direkt an denA support device for ladles in a continuous casting installation with an articulated parallelogram system and a support arm system is also known from DE-A - 24 30 786. In this support device, pressure medium cylinders, which are supported at one end in each case on a rotating column of the support device, directly engage the other ends at the
Lenkern an, wobei die Lenker durch die Druckmittelzylinder auch auf Biegung beansprucht werden und daher dementsprechend aufwendig zu konstruieren sind. Zudem sind bei dieser Konstruktion je Tragarmsystem zwei Druckmittelzylinder erforderlich, die synchron arbeiten müssen, was einen erheblichen Aufwand darstellt. Diese bekannte Konstruktion weist als weiteren Nachteil eine erhebliche Bauhöhe auf.Handlebars, whereby the handlebars are also subjected to bending by the pressure medium cylinders and are therefore correspondingly complex to construct. In addition, two pressure medium cylinders are required for this support arm system, which must work synchronously, which represents a considerable effort. As a further disadvantage, this known construction has a considerable overall height.
Die Erfindung bezweckt die Vermeidung dieser Nachteile und Schwierigkeiten und stellt sich die Aufgabe, eine Trageinrichtung der eingangs beschriebenen Art zu schaffen, deren Lenker des Gelenkparallelogramm-Systems nur durch Zug- und Druckkräfte beansprucht werden, so daß diese Lenker besonders leicht gebaut werden können. Insbesondere soll mit einer möglichst geringen Zahl von Querträgern das Auslangen gefunden werden, so daß die Teile der Trageinrichtung, insbesondere deren Druckmittelzylinder, in einfacher Weise von oben zugänglich sind und eine Reparatur rasch und billig mit Hilfe des Hallenkranes durchgeführt werden kann.The invention aims to avoid these disadvantages and difficulties and has the object to provide a support device of the type described, the handlebars of the articulated parallelogram system are only stressed by tensile and compressive forces, so that these links can be built particularly easily. In particular, the smallest possible number of crossbeams should be used, so that the parts of the carrying device, in particular their pressure cylinder, are easily accessible from above and a repair can be carried out quickly and cheaply with the aid of the indoor crane.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst,
- daß das Tragarmsystem von zwei voneinander unabhängigen Tragarmen gebildet ist, wobei jeder Tragarm für sich an einem unteren und einem oberen Lenker des Gelenkparallelogramm-Systems angelenkt ist,
- daß die oberen Lenker des Gelenkparallelogramm-Systems an ihren vom Drehsockel abgewandten Enden mittels eines Querbalkens zu einer starren, im Grundriß U-förmigen Einheit zusammengefaßt sind, und
- daß der Querbalken an dem mindestens einen Druckmittelzylinder mittels eines Schwenkgelenkes abgestützt ist, wobei das Schwenkgelenk fluchtend zu den an den vom Drehsockel abgewandten Enden angeordneten Gelenken der oberen Lenker liegt.According to the invention, this object is achieved by
that the support arm system is formed by two mutually independent support arms, each support arm being articulated on a lower and an upper link of the articulated parallelogram system,
- That the upper link of the articulated parallelogram system are combined at their ends facing away from the rotary base by means of a crossbar to form a rigid, U-shaped unit in plan, and
- That the crossbar is supported on the at least one pressure medium cylinder by means of a swivel joint, the swivel joint being aligned with the joints of the upper links arranged at the ends facing away from the rotary base.
Eine bevorzugte materialsparende Konstruktion ist dadurch gekennzeichnet, daß der Drehsockel von einer Drehplattform und von dieser vertikal aufragenden Ständern gebildet ist, die im Bereich des Außenumfanges der Drehplattform angeordnet sind, und daß die oberen und unteren Lenker an den Ständern angelenkt sind.A preferred material-saving construction is characterized in that the rotating base is formed by a rotating platform and by vertically upstanding stands, which are arranged in the region of the outer periphery of the rotating platform, and in that the upper and lower links are articulated on the stands.
Hierbei sind zweckmäßig die oberen und unteren Lenker mit in vertikaler Richtung übereinanderliegenden Gelenken an den Ständern angelenkt.Here, the upper and lower links are advantageously articulated on the stands with joints lying one above the other in the vertical direction.
Eine besonders einfache Konstruktion mit zwei diametral gegenüberliegenden Gelenkparallelogramm-Systemen und dazugehörigen Tragarmsystemen zur Aufnahme je einer Gießpfanne ist dadurch gekennzeichnet, daß jeweils die oberen und jeweils die unteren Lenker beider Gelenkparallelogramm-Systeme mit fluchtenden Achsen an den Ständern angelenkt sind.A particularly simple construction with two diametrically opposed articulated parallelogram systems and associated support arm systems for receiving one ladle each is characterized in that the upper and the lower links of both articulated parallelogram systems are articulated on the stands with aligned axes.
Bevorzugt sind die oberen Lenker in Seitenansicht L-förmig gestaltet, wobei jeder obere Lenker jeweils von einem sich vom Gelenk am Drehsockel zum Gelenk am Tragarm erstreckenden Arm und einem vom Gelenk des Tragarmes nach oben erstreckenden Arm des L gebildet wird, und ist der Querbalken jeweils am oberen Ende des sich vom Gelenk des Tragarmes nach oben erstreckenden Armes mit den oberen Lenkern verbunden. Hierdurch ist eine besonders einfache Unterbringung der die Druckmittelzylinder an den Querbalken anlenkenden Lager möglich, so daß diese Lager gut zugänglich sind und die Druckmittelzylinder leicht von den Querträgern gelöst und ausgebaut werden können.The upper links are preferably L-shaped in side view, each upper link being formed in each case by an arm extending from the joint on the rotary base to the joint on the support arm and an arm of the L extending upward from the joint of the support arm, and is the crossbar in each case connected to the upper links at the upper end of the arm extending upwards from the joint of the support arm. This enables a particularly simple accommodation of the bearings articulating the pressure medium cylinders on the crossbeams, so that these bearings are easily accessible and the pressure medium cylinders can be easily detached and removed from the crossbeams.
Die Erfindung ist nachfolgend anhand der Zeichnung an einem Ausführungsbeispiel näher erläutert, wobei Fig. 1 eine schematische Seitenansicht, die teilweise geschnitten ist, zeigt. Fig. 2 stellt eine Ansicht in Richtung des Pfeiles 11 der Fig. 1 ebenfalls teilweise geschnitten dar. Fig. 3 ist eine Schnittdarstellung gemäß der Linie III-III der Fig. 2.The invention is explained in more detail below with reference to the drawing using an exemplary embodiment, wherein FIG. 1 shows a schematic side view, which is partially cut. FIG. 2 also shows a view in the direction of
Die Trageinrichtung 1 weist einen auf einer Gießbühne 2 einer Stranggießanlage ortsfest gelagerten ringförmigen Festsockel 3 mit im Vergleich zum Durchmesser geringer Bauhöhe auf. Auf diesem ist ein Drehsockel 4 mittels eines Drehkranzlagers 5 um eine vertikale Drehachse 6, die mit der Mittelachse des Festsockels 3 fluchtet, dreh bar gelagert, wobei die Drehbewegung mittels Drehantriebsmotoren 7, die an einer Konsole 8 des Festsockels 3 montiert sind, bewerkstelligt wird. Die Motoren 7 treiben Ritzel 9 an, die in einen am Drehsockel 4 angeordneten Zahnkranz 10 eingreifen. Der Drehsockel 4 ist von einer Drehplattform 11 gebildet, von der zwei parallele, jeweils im Bereich des Außenumfanges der Drehplattform befestigte und einander diametral gegenüberliegende vertikale Ständer 12, 13 aufragen.The
An den Ständern 12, 13 sind zwei in entgegengesetzte Richtungen gerichtete Hubeinrichtungen 14, 15 zum Heben und Senken je einer Gießpfanne 16 angeordnet. Jede Hubeinrichtung ist von einem Gelenkparallelogramm-System 17, das an den Ständern 12, 13 angelenkt ist, und einem Tragarmsystem 18, das am Gelenkparallelogramm-System 17 angelenkt ist, sowie einem Druckmittelzylinder 19, wie einem Hydraulikzylinder, gebildet.Arranged on the
Jedes Gelenkparallelogramm-System 17 weist zwei obere Lenker 20, 21 und zwei untere Lenker 22, 23 auf, von denen je ein oberer Lenker 20, 21 und ein unterer Lenker 22, 23 an je einen der Ständer 12, 13 in vertikaler Richtung schwenkbar angelenkt sind. Hierdurch werden zwei zueinander parallele, sich in vertikaler Richtung erstreckende Gelenkparallelogramme 24, 25 gebildet. Die oberen Lenker 20, 21 dieser beiden Gelenkparallelogramme 24, 25 sind durch einen Querbalken 26 zu einer im Grundriß gesehen U-förmigen starren Einheit 27 zusammengefaßt, wodurch eine synchrone Bewegung der beiden Gelenkparallelogramme 24, 25 gesichert ist.Each articulated
Wie aus Fig. 2 ersichtlich ist, ist jeder Ständer 12, 13 von zwei parallelen Platten 28 gebildet, wobei die Gelenke 29 der Gelenkparallelogramme 24, 25 von Gelenkbolzen 30 gebildet sind, die sich von einer Platte 28 bis zur anderen erstrecken. Die jeweils oberen Lenker 20, 21 und jeweils unteren Lenker 22, 23 der beiden Gelenkparallelogramm-Systeme 17 der Hubeinrichtungen 14, 15 sind zwecks Platzeinsparung fluchtend angeordnet, so daß die oberen und unteren Lenker 20, 21; 22, 23 der beiden Gelenkparallelogramm-Systeme 17 an jeweils ein- und demselben Gelenkbolzen 30 gelagert sind.As can be seen from FIG. 2, each
Die Koppel jedes der beiden Gelenkparallelogramme 24, 25 ist vom Tragarmsystem 18 gebildet, welches zwei voneinander unabhängige Tragarme 31,32, die in Seitenansicht L-förmig gestaltet sind, aufweist. Jeder Tragarm 31,32 weist einen horizontalen Teil 33 und einen vertikalen Teil 34 auf, wobei der vertikale Teil 34 an jeweils einem unteren Lenker 22,23 und einem oberen Lenker 20, 21 angelenkt ist und der horizontale Teil 33 sich vom vertikalen Teil 34 nach außen erstreckt und an seinem freien Ende eine Aufnahme 35 für die Gießpfanne 16 trägt. Die die Lenker 20, 21; 22,23 mit den Ständern 12; 13 verbindenden Gelenke 29 sind ebenso wie die die unteren Lenker 22, 23 mit den Tragarmen 31,32 verbindenden Gelenke 36 als in einem begrenzten Bereich sphärisch bewegbare Gelenke ausgebildet.The coupling of each of the two articulated
Die vertikale Bewegung des Tragarmsystems 18 wird mittels des Druckmittelzylinders 19 erreicht, der einerseits mittels eines Lagers 37 an der Drehplattform 11 und andererseits mittels eines Schwenkgelenkes 38 am Querbalken 26 des Gelenkparallelogramm-Systems 17 angelenkt ist. Das den Druckmittelzylinder 19 mit dem Querbalken 26 verbindende Schwenkgelenk 38 ist so angeordnet, daß seine Lagerachse 39 mit den Achsen 40 der die beiden oberen Lenker 20, 21 mit jeweils einem Tragarm 31, 32 verbindenden Gelenke 41 fluchtet und diewirkungslinie 42 der von dem Druckmittelzylinder 19 hervorgerufenen Kraft durch die gedachte horizontale Verbindungslinie der die oberen Lenker 20, 21 mit den Tragarmen 31, 32 verbindenden Gelenke 41 verläuft. Hierdurch werden die oberen Lenker 20, 21 nur auf Zug beansprucht, so daß sie gewichts- und kostensparend gestaltet werden können.The vertical movement of the
Um dies in einfacher Weise konstruktiv verwirklichen zu können, sind die oberen Lenker 20, 21 von der Seite gesehen im wesentlichen L-förmig gestaltet, wobei ein erster Arm 43 des L, der einerseits am Ständer 13, 14 und andererseits am Tragarm 31, 32 angelenkt ist, sich parallel zum jeweiligen unteren Lenker 22, 23 erstreckt und ein zweiter Arm 44 des L sich rechtwinkelig zu dem ersten Arm 43 des L vertikal nach oben erstreckt. An dem oberen Ende des zweiten Armes 44 ist der sich horizontal zum gegenüberliegenden oberen Lenker 20, 21 erstreckende und sich parallel zu den horizontalen Achsen 40, 45, 46, 47 der Gelenke 29, 36, 41 der Gelenkparallelogramme 24, 25 erstreckende Querbalken 26 angeschweißt. Verstärkungsrippen 48 dienen zur Versteifung der von den oberen Lenkern 20, 21 und den Querbalken 26 gebildeten U-förmigen Baueinheit 27.In order to be able to implement this in a simple manner in terms of construction, the
Durch eine solche Gestaltung dieser Baueinheit 27 ist es möglich, in einfacher Weise das Schwenkgelenk 38, mit dem der Druckmittelzylinder 19 am Querbalken 26 angelenkt ist, unterhalb des Querbalkens 26 an diesem zu befestigten, so daß der Querbalken 26 nicht durch Ausnehmungen geschwächt ist und ein Fluchten des Schwenkgelenkes 38 in jeder Position der Lenker 20, 21, 22, 23 mit den Gelenken 41 sichergestellt ist.Through such a design of this
Der Ausbau eines Druckmittelzylinders 19 gestaltet sich besonders einfach, da es lediglich notwendig ist, das Gelenkparallelogramm-System 17 entweder mit dem defekten Druckmittelzylinder selbst oder mittels eines externen Hubmittels anzuheben und den Druckmittelzylinder mittels eines Kranes nach oben durch den freien Raum zwischen dem Querträger 26 und den beiden Lenkern 20, 21 von der Trageinrichtung zu entfernen.The expansion of a
Claims (5)
- daß das Tragarmsystem (18) von zwei voneinander unabhängigen Tragarmen (31; 32) gebildet ist, wobei jeder Tragarm (31; 32) für sich an einem unteren und einem oberen Lenker (22, 20; 23, 21) des Gelenkparallelogramm-Systems (17) angelenkt ist,
- daß die oberen Lenker (20, 21) des Gelenkparallelogramm-Systems (17) an ihren vom Drehsockel (4) abgewandten Enden mittels eines Querbalkens (26) zu einer starren, im Grundriß U-förmigen Einheit (27) zusammengefaßt sind, und
- daß der Querbalken (26) an dem mindestens einen Druckmittelzylinder (19) mittels eines Schwenkgelenkes (38) abgestützt ist, wobei das Schwenkgelenk (38) fluchtend zu den an den vom Drehsockel (4) abgewandten Enden angeordneten Gelenken (41) der oberen Lenker (20, 21) liegt.1.Supporting device (1) for ladles (16) in a continuous casting installation, with a fixed base (3) mounted in a fixed position and a rotary base (4) which is rotatable relative to it and rotatable by means of a rotary drive (7), on which a joint parallelogram system ( 17) with at least one support arm system (18) for receiving a pouring ladle (16) which is pivotable about horizontal axes (45, 46) and arranged one above the other (20, 21; 22, 23), the support arm system (18) being connected by means of at least one Pressure medium cylinder (19) can be raised and lowered relative to the rotary base (4), characterized in that
- That the support arm system (18) of two mutually independent support arms (31; 32) is formed, each support arm (31; 32) for itself on a lower and an upper link (22, 20; 23, 21) of the articulated parallelogram system (17) is articulated,
- That the upper link (20, 21) of the articulated parallelogram system (17) at their ends facing away from the rotating base (4) by means of a crossbar (26) are combined into a rigid, U-shaped unit (27) in plan, and
- That the crossbar (26) is supported on the at least one pressure medium cylinder (19) by means of a swivel joint (38), the swivel joint (38) being aligned with the joints (41) of the upper links arranged at the ends facing away from the rotating base (4) (20, 21).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0033589A AT391286B (en) | 1989-02-15 | 1989-02-15 | CARRYING DEVICE FOR CASTING MOLDS IN A CONTINUOUS CASTING SYSTEM |
AT335/89 | 1989-02-15 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0383747A2 true EP0383747A2 (en) | 1990-08-22 |
EP0383747A3 EP0383747A3 (en) | 1991-03-27 |
EP0383747B1 EP0383747B1 (en) | 1993-04-28 |
Family
ID=3487864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90890030A Expired - Lifetime EP0383747B1 (en) | 1989-02-15 | 1990-02-08 | Supporting arrangement for casting ladles at a continuous casting plant |
Country Status (5)
Country | Link |
---|---|
US (1) | US4966349A (en) |
EP (1) | EP0383747B1 (en) |
JP (1) | JPH02241648A (en) |
AT (1) | AT391286B (en) |
DE (1) | DE59001278D1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4228432C1 (en) * | 1992-08-27 | 1993-12-16 | Mannesmann Ag | Transfer station for ladles |
AT399677B (en) * | 1993-07-21 | 1995-06-26 | Voest Alpine Ind Anlagen | CARRYING DEVICE FOR CASTING TANS FOR A CONTINUOUS CASTING SYSTEM |
DE102022200088A1 (en) | 2022-01-06 | 2023-07-06 | Sms Group Gmbh | System comprising a ladle for accommodating a melt and a carrying device for accommodating the ladle |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1581054A (en) * | 1968-07-11 | 1969-09-12 | ||
FR2070894A7 (en) * | 1969-12-17 | 1971-09-17 | Demag Ag | |
DE2430786A1 (en) * | 1973-06-26 | 1975-01-16 | Vallourec Lorraine Escaut | ROTATING DEVICE FOR TRANSPORTING STEEL CASTING PANS |
FR2535633A1 (en) * | 1982-11-10 | 1984-05-11 | Clecim Sa | Steel works trunnion. |
EP0277846A1 (en) * | 1987-01-06 | 1988-08-10 | Clecim | Ladle turret |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2916042C3 (en) * | 1979-04-20 | 1988-09-29 | Mannesmann AG, 4000 Düsseldorf | Rotating tower for two independently raising and lowering ladles |
LU83753A1 (en) * | 1981-11-13 | 1983-09-01 | Wurth Paul Sa | ROTATING SUPPORT FOR CONTINUOUS CASTING POCKETS |
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 |
-
1989
- 1989-02-15 AT AT0033589A patent/AT391286B/en not_active IP Right Cessation
-
1990
- 1990-02-08 DE DE9090890030T patent/DE59001278D1/en not_active Expired - Lifetime
- 1990-02-08 EP EP90890030A patent/EP0383747B1/en not_active Expired - Lifetime
- 1990-02-14 JP JP2033585A patent/JPH02241648A/en active Pending
- 1990-02-14 US US07/479,965 patent/US4966349A/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1581054A (en) * | 1968-07-11 | 1969-09-12 | ||
FR2070894A7 (en) * | 1969-12-17 | 1971-09-17 | Demag Ag | |
DE2430786A1 (en) * | 1973-06-26 | 1975-01-16 | Vallourec Lorraine Escaut | ROTATING DEVICE FOR TRANSPORTING STEEL CASTING PANS |
FR2535633A1 (en) * | 1982-11-10 | 1984-05-11 | Clecim Sa | Steel works trunnion. |
EP0277846A1 (en) * | 1987-01-06 | 1988-08-10 | Clecim | Ladle turret |
Also Published As
Publication number | Publication date |
---|---|
ATA33589A (en) | 1990-03-15 |
EP0383747B1 (en) | 1993-04-28 |
AT391286B (en) | 1990-09-10 |
US4966349A (en) | 1990-10-30 |
EP0383747A3 (en) | 1991-03-27 |
JPH02241648A (en) | 1990-09-26 |
DE59001278D1 (en) | 1993-06-09 |
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