EP0988907A1 - Dispositif actionneur - Google Patents

Dispositif actionneur Download PDF

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Publication number
EP0988907A1
EP0988907A1 EP99115871A EP99115871A EP0988907A1 EP 0988907 A1 EP0988907 A1 EP 0988907A1 EP 99115871 A EP99115871 A EP 99115871A EP 99115871 A EP99115871 A EP 99115871A EP 0988907 A1 EP0988907 A1 EP 0988907A1
Authority
EP
European Patent Office
Prior art keywords
actuator
actuator device
continuous casting
relative
hand
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99115871A
Other languages
German (de)
English (en)
Inventor
Werner. Ing. Scheurecker
Rainer Dipl.-Ing. Karan
Johannes Dipl.-Ing. Molnar
Heinrich Dipl.-Ing. Thöne
Franz Dipl.-Ing. Wimmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Primetals Technologies Austria GmbH
Original Assignee
Voest Alpine Industrienlagenbau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Publication of EP0988907A1 publication Critical patent/EP0988907A1/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/053—Means for oscillating the moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/05—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds into moulds having adjustable walls

Definitions

  • the invention relates to an actuator device for adjusting the position of a first part in an actuating direction relative to a second part, with an actuator on the one hand with the first part and on the other hand with the second part of the parts to be moved relative to each other is connected via a connection device.
  • the actuator such as one Pressure medium cylinder or a spindle with nut screwable along the spindle or to articulate a rack and pinion drive on the first part and on the second part, whereby it is possible that the parts to be adjusted with the actuator differ Can take angular positions to each other, either depending on the adjustment of these parts caused by the actuator relative to each other, or it can this compensates for manufacturing inaccuracies.
  • the latter for example, if the parts to be adjusted relative to each other shifted in parallel by means of the actuator should be, in which case it would be disadvantageous, the actuator rigid to the relative to fix parts to be moved. In this case there could be tension come and the actuator is loaded with loads that lead to premature Wear of the actuator.
  • Another area of application is, for example, for an oscillating drive Continuous casting mold given, the continuous casting mold either - in a straight line Continuous casting mold - a strictly linear movement (vertical casting, horizontal casting) has to perform, or - in the case of a curved continuous casting mold - one Oscillation movement as identical as possible to the arch shape of the cast strand has to be carried out, with intended angular deviations of the position of the Continuous casting mold comes opposite a stationary support structure.
  • actuators be they spindles or, have been used in continuous casting technology
  • Pressure cylinder always articulated with the parts to be moved relative to each other connected.
  • the disadvantage here is that each articulation to enable a Angle adjustment requires some play, which affects the accuracy of the movement or accuracy of the position to be adjusted of a part to be adjusted has a negative effect.
  • such an articulated connection is technically complex and maintenance-intensive. In particular, it can be the case in rough casting operations, in particular in continuous steel casting a rapid wear and thus an inadmissible enlargement of the Game after a short period of operation.
  • the invention aims to avoid these disadvantages and difficulties and provides the task of creating an actuator device of the type described above with which makes it possible to close the parts to be adjusted with as little play as possible by means of the actuator adjust.
  • the construction should be technically simple to implement.
  • the operating costs should be low, especially when it comes to maintenance and renewal concerns.
  • At least one Connecting device at least one in the setting direction stiff and in this direction pull and Absorbing compressive forces, but against torques acting transversely to this resilient element.
  • a particularly simple construction is characterized in that the against Torque compliant element of a single itself approximately in the direction of adjustment extending bending rod is formed, which has a dimension that it has buckling forces, caused by an actuating force by means of the actuator, withstands, expedient for Increase the flexibility against torques the bending rod with at least one local constriction reducing constriction is provided.
  • Another preferred embodiment is characterized in that the compliant Element of two rods extending approximately in the direction of adjustment formed by them one of the actuator to one of the two parts to be adjusted relative to each other in a first direction and the other rod extends from the actuator to this part in one to the first direction extends opposite direction.
  • either the rods are arranged in series, whereby they are expediently integral are connected.
  • it is the two, preferably arranged at a short distance, Bars provided parallel to each other, with a first bar at an end portion of the Actuator and a second rod at the other end of the actuator is rigidly arranged and the rods with the other end at one of the two relative to each other moving parts are also rigidly arranged.
  • the resilient element can also be from leaf springs, ropes or membranes be formed, which are provided in arrangements analogous to the arrangements of the rods can.
  • a pressure medium cylinder is provided as an actuator.
  • an adjusting spindle would still have some play between the nut and the Spindle occur, but even then, according to the invention, the games would be as they are on the Articulated connections are available with which a threaded spindle on the one hand with the one part and the mother connected to the other part, turned off.
  • the pressure cylinder can be used for particularly delicate cases where it is very precise and differentiated adjustment arrives, such as for adjusting one Narrow side wall of a plate mold, designed as a stepping cylinder.
  • a continuous casting plate mold with at least one changing the format of the G devisquerroughes the continuous casting plate mold adjustable side wall, whereby Adjustment of the side wall of an actuator device with an actuator, preferably a pressure medium cylinder, serves, the actuator on the one hand with that to be adjusted Side wall and on the other hand on a relative to the side wall to be adjusted immovable support device is supported, characterized in that the Actuator device according to one or more of the advantageous described above Embodiments is designed.
  • FIG. 1 shows a continuous casting mold in a schematic representation in section, which after the State of the art is designed.
  • Fig. 2 shows a continuous casting mold in plan view according to the Invention and
  • Fig. 3 is an enlargement of a detail III of Fig. 2.
  • Fig. 4 is one Partial sectional view along the line IV-IV of Fig. 2.
  • Fig. 5 illustrates a detail 4 in side view; 6 in view in the direction of arrow VI of FIG. 5.
  • FIG. 7 8 show another embodiment of a construction according to the invention, wherein 7 shows a horizontal section through a continuous casting mold and FIG. 8 shows a section according to FIG line VIII-VIII of FIG. 7 illustrate.
  • FIGS. 9 and 10 is another Embodiment shown in the representation analogous to FIGS. 7 and 8.
  • FIGS. 11 and 12 once in plan view and once in Side view. 13 and 14 each show yet another embodiment, and each in side view. 15 illustrates an application of a Construction according to the invention for an oscillating drive of a continuous casting mold.
  • the Fig. 16 and 17 each show a detail of FIG. 15 in section, with FIG. 17 a section according to the line XVII-XVII of Fig. 16 shows. 18 and 19 show in FIG. 16 and 17 analog representation another variant.
  • Fig. 20 is a plan view in the direction arrow XX of FIG. 18.
  • Fig. 1 are in a conventional continuous casting mold Narrow side walls 1, which can be clamped between the wide side walls 2 and 3 can be moved - it is a so-called plate mold - in a horizontal direction Direction by means of a schematically illustrated guide 4 on the broad side walls 2, 3 slidably guided.
  • pressure medium cylinders 5, 6 By means of pressure medium cylinders 5, 6, the narrow side walls 1 in different layers to achieve a strand with the desired strand width 7 be moved.
  • a conicity is adjusted by means of this Pressure cylinder 5, 6 possible.
  • Pressure medium cylinders 5, 6 there are two for each narrow side wall Pressure medium cylinders 5, 6 are provided, with a first pressure medium cylinder 5 at the top End area and a second pressure cylinder 6 at the lower end area with the Narrow side wall 1 is articulated, according to the illustrated Exemplary embodiment in each case via articulated bearings 9 arranged on the piston rod 8.
  • the pressure medium cylinders 5, 6 are supported on one opposite the narrow side wall 1 stationary part of the continuous casting mold, preferably on one of the continuous casting molds surrounding frame 10, for example the water tank, lifting table etc. or on one Broad side wall 2 or 3.
  • This support on the stationary part is also by means of a Joint 11 allowing pivoting movements realized, so that no constraints when Actuation of the pressure medium cylinders 5, 6 can occur.
  • dashed lines is about
  • Another pressure cylinder 12 in the middle of the height of the narrow side wall 1 illustrates with which a deflection of the narrow side wall 1 can be achieved, which makes it possible to shape the narrow side wall 1 in a particularly good manner Adjust shrinkage of the strand.
  • This third pressure cylinder 12 is both with the narrow side wall and also with the part 10 that is fixed relative to the narrow side wall each connected via a joint 9, 11.
  • the disadvantage of such a construction is the play in the joints 9, 11, the one really precise adjustment of the position of a narrow side wall 1 is a hindrance.
  • the joints 9, 11 require maintenance to maintain their articulation, what is not easy, especially since access to the joints 9, 11 is not readily given is, especially in continuous casting molds for casting thin slabs. It is usually then required to remove and disassemble the continuous casting mold from the continuous casting plant. Regular maintenance is, however, due to the rough casting operation (high Pouring temperatures, water cooling, dust-laden air, etc.) are absolutely necessary.
  • narrow side walls 1 can be clamped between two broad side walls 2, 3.
  • the broad side walls 2, 3 are on a rigid frame 10 surrounding the broad sides 2, 3 and narrow sides 1 is supported.
  • the piston rod 8 each Pressure medium cylinder 5, 6 is connected to the narrow side wall 1 via a screw connection 13 rigidly connected.
  • each pressure cylinder 5, 6 is by means of four rods 15 with the Frame 10 connected, each with two rods 15 on one side of each Pressure cylinder 5, 6 parallel to each other and at a short distance from each other are arranged.
  • the other two rods 15 are diametrically opposite on the the other side of each pressure cylinder 5, 6 is provided.
  • rods 15, namely a rod 15 on each side are with their Ends rigidly at an end portion of the cylinder body 14 of each cylinder body 14 of the Pressure cylinder 5, 6 attached, and two further rods 15 are at their ends rigidly connected to the opposite end region of the cylinder body 14.
  • the other ends of all four rods 15 are with the rigid frame 10 of the Continuous casting mold also rigidly connected, the rods extending from the Pressure medium cylinders 5 and 6 extend in the direction I to the narrow side wall 1, on one each pressure medium cylinder 5 or 6 frame-shaped surrounding console part 16, the with is rigidly connected to the frame 10, that is to say attributable to the frame 10.
  • the rigid connection of the rods with the pressure medium cylinder 5, 6 and the frame 10 (or Console part 16) of the continuous casting mold is in each case by means of screw connections realized. Other connections could also be provided here, such as wedges etc.
  • two rods 15 each extend from an end region of the Pressure medium cylinder to the rigid frame 10 of the continuous casting mold in a direction 7 and two further rods 15 from the pressure cylinder to the rigid frame 10 of the Continuous casting mold in the opposite direction II.
  • the rods 15 on Cylinder bodies 14 of the pressure medium cylinders 5, 6 have the ends of each cylinder body 14 radially projecting flanges 17, each of the flanges 17 having recesses 18 has in order to move the rods 15 past the attachment to the rigid frame 10 or to enable the continuous casting mold on the console part 16 of the frame 10.
  • Fig. 4 are still coolant supply and discharge lines 19 for cooling the Narrow side wall 1 illustrates that of telescoping tubes are formed.
  • the inventive attachment of the pressure medium cylinders 5, 6 on the rigid frame 10 of the continuous casting mold can the pressure medium cylinders 5, 6 enormous forces in the direction of adjustment transmitted, but are opposite to a torque transversely to the actuating direction in the illustrated embodiment compared to a horizontally directed Torque (illustrated by a double arrow 20) is movable. In this way angular positions of the narrow side wall 1, i.e. Deviations of the Narrow side wall 1 allows from a strict vertical position.
  • the pressure medium cylinders 5, 6 are approximately in the middle of them Provide longitudinal extension with a flange 17 on which both in one and in the opposite direction I or II, which roughly correspond to the direction of adjustment, extending rods 15 are mounted. And here are also two rods 15, which are in one direction I, and two rods 15, which extend in the opposite direction II extend, present.
  • the ends pointing away from the pressure medium cylinders 5, 6 Bars 15 are in turn on a part of the continuous casting mold, which is opposite the Narrow side wall 1 not moved, fixed; in the illustrated embodiment on the Broad side wall 2 via screw connections. So in this example are in opposition to the embodiment shown in FIGS. 2 to 6, the rods 15 are not in Parallel arrangement or cascade arrangement, but provided in series arrangement.
  • 11 and 12 is a construction in a representation analogous to FIGS. 3 and 4 shown, in which the pressure cylinder 5, 6 not by means of rods 15, but by means of Leaf springs 21 on the rigid frame 10 of the continuous casting mold or its broad side wall 2 are attached.
  • the arrangement of the leaf springs 21 is analogous to the arrangement of the rods 15 taken according to Fig. 2; it could also be analogous to the arrangement of the rods according to FIGS. 7 to 10 be hit.
  • Leaf springs 21 could also be provided here instead of the leaf springs 21.
  • the leaf springs 21 (if necessary also the ropes) are both with the pressure medium cylinders 5, 6 and. rigid frame 10 connected without play, by a conventional one Restraint.
  • Fig. 13 an embodiment is shown in which the piston rod head each Pressure medium cylinders 5, 6 each with a bending rod 21 with the narrow side wall 1 connected is.
  • This bending rod 21, which is a continuation of the piston rod 8 and stress-free condition roughly aligned with this, is both with the Piston rod head and rigidly connected to the narrow side wall 1, preferably by means of screw connections.
  • FIG. 14 shows the implementation of the invention by means of a membrane 23, two Membranes 23 are provided, on the one hand to support the piston rod 8 the narrow side wall 1, and on the other hand the cylinder body 14 on the fixed frame 10 of the Continuous casting mold or its broad side wall 2.
  • the membranes 23 extend approximately transverse to the direction of adjustment and are centered with that part via a support 24 connected, which is rigidly connected to the membrane 23 over the circumference of the membrane 23, so that even with an embodiment of this type of compressive and tensile forces without play to the Narrow side wall 1 can be transferred, but the narrow side wall 1 opposite the piston rod 8 or opposite the rigid frame 10 of the continuous casting mold Can take angular positions.
  • 15 to 20 is an application of an actuator device according to the invention for illustrates the oscillating drive 25 of a continuous casting mold.
  • 15 is one Curved continuous casting mold attached to a stationary support structure 26 via flexible links 27, a vertical oscillating movement in the direction of the double arrow 28 by means of a Actuator, which is also designed here as a pressure medium cylinder 29 takes place.
  • the Bending link 27, by means of which the continuous casting mold is fastened to the stationary support frame 26, extend approximately in the direction of the radius of the arc that the side walls of the Form continuous casting mold. These flexible links 27 enable the guide to be guided without play Continuous casting mold in the direction of the arc.
  • FIG. 15 each in a sectional view illustrate, show, is a pressure medium cylinder 29 with its piston rod 30 a console 31 of the continuous casting mold rigidly connected.
  • the cylinder body 32 of the Pressure cylinder 29 is in turn by means of four rods 15 with the stationary support structure 26 connected, the rods 15, two and two each in series to the side of the Pressure cylinder 29, in diametrical plan view of the pressure cylinder 29 are arranged opposite each other.
  • the bars 15 are also integral with each other connected, the ends of the rods 15 pointing away from the pressure medium cylinder 29 are each rigidly connected to the stationary support structure 26; in the illustrated Exemplary embodiment illustrated by screw connections.
  • FIGS. 16 and 17 show a variant according to which the piston rod head with the bracket 31 of the continuous casting mold also via a construction analogous to that in FIGS. 16 and 17 rod construction shown is connected.
  • the rods 15, with which the Piston rod head is connected to the continuous casting mold in plan view of the Pressure cylinder 29, i.e. circumferentially in view in the direction of the piston longitudinal axis compared to the rods 15 with which the cylinder body 32 of the pressure cylinder 29 on fixed support frame 26 is attached, rotated by 90 °, so that angular positions the continuous casting mold with respect to the stationary support frame 26 is possible in any direction are.
  • the invention is not limited to the exemplary embodiments shown. That's the way it is e.g. possible, different types of those in the illustrated embodiments to combine the elements shown, i.e. leaf springs and rods or ropes combined to provide.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Actuator (AREA)
EP99115871A 1998-09-25 1999-08-12 Dispositif actionneur Withdrawn EP0988907A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT160498 1998-09-25
AT160498A AT408422B (de) 1998-09-25 1998-09-25 Stelltriebeinrichtung

Publications (1)

Publication Number Publication Date
EP0988907A1 true EP0988907A1 (fr) 2000-03-29

Family

ID=3517022

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99115871A Withdrawn EP0988907A1 (fr) 1998-09-25 1999-08-12 Dispositif actionneur

Country Status (3)

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EP (1) EP0988907A1 (fr)
JP (1) JP2000104705A (fr)
AT (1) AT408422B (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1559774A (fr) * 1968-01-15 1969-03-14
FR2427152A1 (fr) * 1978-06-01 1979-12-28 Clesid Sa Perfectionnement aux lingotieres a plaques
DE3407294A1 (de) * 1984-02-29 1985-08-29 SMS Schloemann-Siemag AG, 4000 Düsseldorf Vorrichtung zur ferngesteuerten verstellung von kokillenschmalseitenwaenden
DE3420445A1 (de) * 1984-06-01 1985-12-05 SMS Schloemann-Siemag AG, 4000 Düsseldorf Vorrichtung zur verstellung der schmalseitenwaende von stranggiesskokillen
WO1999012676A1 (fr) * 1997-09-08 1999-03-18 Voest-Alpine Industrieanlagenbau Gmbh Dispositif de coulee continue

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1559774A (fr) * 1968-01-15 1969-03-14
FR2427152A1 (fr) * 1978-06-01 1979-12-28 Clesid Sa Perfectionnement aux lingotieres a plaques
DE3407294A1 (de) * 1984-02-29 1985-08-29 SMS Schloemann-Siemag AG, 4000 Düsseldorf Vorrichtung zur ferngesteuerten verstellung von kokillenschmalseitenwaenden
DE3420445A1 (de) * 1984-06-01 1985-12-05 SMS Schloemann-Siemag AG, 4000 Düsseldorf Vorrichtung zur verstellung der schmalseitenwaende von stranggiesskokillen
WO1999012676A1 (fr) * 1997-09-08 1999-03-18 Voest-Alpine Industrieanlagenbau Gmbh Dispositif de coulee continue

Also Published As

Publication number Publication date
AT408422B (de) 2001-11-26
ATA160498A (de) 2001-04-15
JP2000104705A (ja) 2000-04-11

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