EP0194656A1 - Dispositif pour la coulée continue de métal, en particulier d'acier - Google Patents

Dispositif pour la coulée continue de métal, en particulier d'acier Download PDF

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Publication number
EP0194656A1
EP0194656A1 EP86103274A EP86103274A EP0194656A1 EP 0194656 A1 EP0194656 A1 EP 0194656A1 EP 86103274 A EP86103274 A EP 86103274A EP 86103274 A EP86103274 A EP 86103274A EP 0194656 A1 EP0194656 A1 EP 0194656A1
Authority
EP
European Patent Office
Prior art keywords
support
thickness
frame
drive
adjustment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86103274A
Other languages
German (de)
English (en)
Other versions
EP0194656B1 (fr
Inventor
Dietmar Lohse
Dieter Kothe
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6264864&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0194656(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mannesmann AG filed Critical Mannesmann AG
Priority to AT86103274T priority Critical patent/ATE38000T1/de
Publication of EP0194656A1 publication Critical patent/EP0194656A1/fr
Application granted granted Critical
Publication of EP0194656B1 publication Critical patent/EP0194656B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing

Definitions

  • the invention relates to a metal sir casting device, in particular for steel cast strands, with a guide frame following the casting mold in the casting direction, which consists of individual segments, each segment having an upper and a lower support frame, several support rollers rotatably mounted on each support frame and at least individual ones Back-up rollers are driven and opposing back-up frames can be adjusted to a back-up roller spacing corresponding to the thickness of the cast strand by means of hydraulic, double-actionable, paired main adjusting drives which connect the lower and upper frames and which secondary adjustment drives are assigned for fine adjustment, the thickness spacing being fixable by means of stops arranged on the guide frame
  • Such guide stands with main adjustment and secondary adjustment drives are used for guiding and transporting starting strands at the start of casting and the transport of cast strands, as well as straightening curved cast strands, cast strands growing beyond their desired thickness or shrinking below their sol / thickness.
  • the strand exerts a disproportionately high clamping force in curved strand guide frames.
  • the cast strand can only be removed from the guide frame by opening the affected segments.
  • the main adjustment drive can reduce the strand to the desired thickness if the target thickness is exceeded, but in this situation the secondary adjustment drive cannot be prevented from increasing the thickness spacing, so that the intended effects of the main adjustment drive are doubtful. It is disadvantageous to assign such a force to the main adjustment drive that excessively deforms the cast strand when bulging in front of the support rollers. In such cases, permanent damage to the cast structure is to be feared.
  • the secondary adjustment drive is at most able to advance the top roller when the target thickness is undershot. Such a control system is unsafe and creates unstable conditions in the management structure
  • the object of the invention is to create an adjustment system which is rigid in every thickness setting and therefore safe and nevertheless sufficiently fast.
  • the contact pressure on the stops can be regulated on the one hand via the hydraulic main adjustment drive and on the other hand via a mechanical secondary adjustment drive mounted on one of the support frames, the support means of which are applied to the stops in all thickness settings and with the support means of which the thickness distance in both Adjustment directions is finely adjustable.
  • Such an adjustment system avoids floating support of the upper support frame in critical phases, if the cast strand should temporarily exceed its target thickness and in smaller areas.
  • such an adjustment system is sufficiently rigid and therefore safe with regard to the permanent contact of the support means of the auxiliary adjustment drives.
  • it is also ensured that the top rollers run up to the bottom rollers quickly enough, to an extent that is required in continuous casting operation. It is also advantageous that a parallel position of the two support rollers to each other is ensured in the permanent contact of the support means at the stops.
  • the secondary adjustment drive has a drivable threaded spindle as support means, that the threaded spindle is guided in a threaded nut and in a bush, that the bush is fitted in the area of the stop within a bush housing fastened in the upper frame and that the threaded nut is also is held in the bush housing.
  • a double-mounted threaded spindle is advantageously suitable for absorbing high supporting forces.
  • Such a threaded spindle can be driven by hand if necessary.
  • two pairs of the secondary adjustment drive are arranged on the upper frame of a segment and can be actuated synchronously by means of a common drive.
  • Such a drive arrangement allows the mechanical auxiliary adjustment drives to be arranged on the largest possible available base area in accordance with the expansion of a segment frame and thereby a desired parallel adjustment to the counter frame, e.g. to adhere to the subframe.
  • a drive motor or a downstream countershaft can be driven by means of cardan shafts and two auxiliary adjustment drives in each case by means of a connecting shaft running parallel to the support rollers.
  • Such an arrangement has the advantage that the drive motor can also be set up on a pedestal outside of the guide frame in order to favor an exchange of an individual guide segment.
  • a further improvement of the secondary adjustment drives is that the connecting shafts each drive on a worm gear, the worm wheel being fastened on the threaded spindle and the worm on the connecting shaft.
  • such an embodiment has the advantage of a sufficiently large transmission ratio between the drive or the downstream countershaft on the one hand and the thread to be able to provide spindle.
  • the support means according to the invention in its form as a threaded spindle can be arranged on the inside of the main adjustment drives and therefore requires special measures in the upper frame.
  • Such a completely separate arrangement of the main adjustment drive and the secondary adjustment drive is made possible in that the bush housing used in the upper support frame is made in two parts and a first part from below and a second part from above can be inserted and fastened to the upper support frame.
  • the assembly is further facilitated by the fact that in the first part of the two-part bushing housing introduced from below, the threaded nut is turned upward. there is a fixed paragraph. The threaded nut can therefore be easily replaced if worn.
  • the metal, in particular steel continuous casting device has a (curved) guide frame 1 (FIG. 1, which, for example, consists of three segments 3 arranged on a bearing frame 2)
  • the guide frame 1 is therefore divided into segments 3 in order to be able to replace a fully adjusted segment 3 in the event of failure of one or more of the support rollers 4.
  • Each segment 3 has an upper and a lower support frame 5a and 5b.
  • Several, for example six, of the support rollers 4 are rotatably mounted on each of the support frames 5a and 5b and are adjusted here to the strand vein formed by the desired thickness of the cast strand 6, the curvature of the arch being taken into account in the exemplary embodiment.
  • the alignment is understandably easier , because there the support rollers 4 lie on a straight line.
  • the segments 3 form complete units which are fastened to the bearing frame 2 by means of hydraulic tensioning devices 7.
  • Rotary drives (not shown) are provided for some of the support rollers 4, which are set up outside the guide frame 1. From these rotary drives, cardan shafts are guided on couplings on the pins of the support rollers 4
  • the two opposing support frames 5a and 5b are set to a support roller spacing or thickness spacing 8 in accordance with the target thickness of the cast strand 6.
  • the adjustment is made via main adjustment drives 9, of which at least one pair is provided on each side next to the cast strand 6, with the hydraulic cylinder being fastened to the lower support frame 5b and the piston rod to the upper support frame 5a in a hydraulic embodiment by means of a suitable joint.
  • main adjustment drives 9 are provided, so that each upper support frame 5a is held on four piston rods.
  • the main displacement drives 9 are expediently double-acting piston-cylinder units. It is of course possible to get by with only one pair of main adjustment drives 9.
  • Auxiliary adjustment drives 10 are located on the upper support frame 5a, the number of which may also vary (FIG. 1).
  • the secondary adjustment drives 10 are used for fine adjustment of the thickness spacing 8 for deviations from the target thickness of the cast strand 6.
  • the thickness spacing 8 is set by means of interchangeable stops 11, which rest on a frame part 12, which at the same time has a protective housing 1 2a and 2 that prevents heat radiation 12b for the main adjustment drives 9 and is firmly connected to the lower support frame 5b.
  • a protective housing 1 2a and 2 that prevents heat radiation 12b for the main adjustment drives 9 and is firmly connected to the lower support frame 5b.
  • the thickness surfaces of the cast strand 6 guiding plates 13a and 13b are fastened
  • a secondary adjustment drive 1 0 is shown in more detail in FIGS. 3 and 4. It is located with its axis 14 parallel to the axis 15 of the main adjustment drive 9, the piston rod 9a of which is articulated in the upper support frame 5a by means of cross bolts 16.
  • the support means 17 is in contact with the stops 11 in all thickness settings. From this position it is possible to counteract an increase in the thickness of the cast strand 6 by giving in the piston rod 9a and by simultaneously (possibly differently) lowering the support means 17. With decreasing strand thickness, ie with decreasing thickness spacing 8, the piston rod 9a and the support means 17 are adjusted accordingly downwards.
  • a fine adjustment in both adjustment directions 18a and 18b with the piston rod 9a fixed is made possible by the design of the support means 17 as a threaded spindle 19.
  • the threaded spindle 19 With the threaded part 20, the threaded spindle 19 is guided in a threaded nut 2 1 (FIG. 4) and in a bush 22. Both the threaded nut 21 and the bushing 22 are supported in a bush housing 23.
  • the bush housing 23 is formed from the parts 23a and 23b.
  • the first part 23a is inserted from below, the second part 23b from above into the upper support frame. Then both parts are connected to each other, for example by a weld.
  • the threaded nut 21 is inserted and secured according to a similar division system in the upper part 23b.
  • a hexagon 24 is provided (Fig. 3 and 4).
  • the support means 17 could generate an undesirable bending moment in the upper support frame 5a and in other components.
  • an insert 25, which may be detachable, is inserted on the stop 11 axially symmetrically to the axes 14 and 15.
  • the secondary adjustment drive 10 is arranged symmetrically in pairs 26 (FIG. 5) on the upper support frame 5a and can be actuated synchronously by means of a common drive 27.
  • the associated drive motor 27a or a Downstream countershaft 28 transmit the setting force by means of the articulated shafts 29 and 30 to the respective first auxiliary setting drive 10 and from there to the second secondary setting drive 10 by means of connecting shafts 31 and 32 running parallel to the support rollers 4.
  • the connecting shafts 31 and 32 each drive on a worm gear 33 (FIG. 2), the worm wheel 34 of which is fastened on the threaded spindle 19.
  • the worm 35 (inside the worm gear housing) is fastened on the respective connecting shaft 31 and 32, respectively.
  • FIG. 2 An alternative solution to the arrangement of the threaded spindle 19 with a threaded nut 21 is shown in FIG. 2.
  • the threaded nut 21 is fixed upwards against a fixed shoulder 36. Otherwise, this embodiment corresponds to the embodiment described for FIGS. 3 and 4.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP86103274A 1985-03-12 1986-03-11 Dispositif pour la coulée continue de métal, en particulier d'acier Expired EP0194656B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86103274T ATE38000T1 (de) 1985-03-12 1986-03-11 Metallstranggiessvorrichtung, insbesondere fuer gussstraenge aus stahl.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3508658 1985-03-12
DE19853508658 DE3508658A1 (de) 1985-03-12 1985-03-12 Metallstranggiessvorrichtung, insbesondere fuer gussstraenge aus stahl

Publications (2)

Publication Number Publication Date
EP0194656A1 true EP0194656A1 (fr) 1986-09-17
EP0194656B1 EP0194656B1 (fr) 1988-10-19

Family

ID=6264864

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86103274A Expired EP0194656B1 (fr) 1985-03-12 1986-03-11 Dispositif pour la coulée continue de métal, en particulier d'acier

Country Status (4)

Country Link
EP (1) EP0194656B1 (fr)
JP (1) JPS61216844A (fr)
AT (1) ATE38000T1 (fr)
DE (1) DE3508658A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0467877A2 (fr) * 1990-07-18 1992-01-22 VOEST-ALPINE Industrieanlagenbau GmbH Guidage de barre sur une installation de coulée continue
EP0545104A2 (fr) * 1991-11-26 1993-06-09 Sms Schloemann-Siemag Aktiengesellschaft Procédé et dispositif pour coulée continue des lingots ou blooms
US5433265A (en) * 1993-02-26 1995-07-18 Mannesmann Aktiengesellschaft Billet guide frame
EP1060816A1 (fr) * 1999-06-19 2000-12-20 SMS Demag AG Dispositif pour le reglage des segments de guidage du brin d'une installation de coulee continue entre cylindres
CN114871980A (zh) * 2022-05-31 2022-08-09 桂德(武汉)科工有限公司 一种夹紧装置及其组装方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1458240B2 (de) * 1963-12-20 1970-10-08 United States Steel Corp., Pitts^ burgh, Pa. (V.St.A.) Regelvorrichtung für den Anpreßdr-uck zwischen einem Gußstrang und KlemmroHen
FR2042593A1 (fr) * 1969-05-13 1971-02-12 Concast Ag
DE1963146A1 (de) 1969-12-17 1971-06-24 Demag Ag Segmentrahmen fuer die Stuetz- bzw. Transportwalzen einer Metall-,insbesondere Stahlstranggiessanlage
DE2133144A1 (de) 1971-07-03 1973-01-18 Concast Ag Verfahren und vorrichtung zum ausfoerdern und richten eines stranges in einer stranggiessanlage
EP0058869A1 (fr) * 1981-02-21 1982-09-01 Sms Schloemann-Siemag Aktiengesellschaft Charpente de guidage et de soutien dans la zone d'entraînement et/ou de dressage dans une installation de coulée continue
AT371033B (de) * 1981-09-03 1983-05-25 Voest Alpine Ag Strangfuehrungsgeruest fuer eine stranggiessanlage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES331665A1 (es) * 1965-10-12 1967-11-16 Gosudarstveny Cojuzny Inst Projektirovanya Met Allourgitc Mecanismo de guia en la zona de enfriamiento secundario de una maquina de colada continua de metales.
JPS5192728A (ja) * 1975-02-14 1976-08-14 Renzokuchuzosetsubini okeru chuhenannaisochi
JPH05231696A (ja) * 1992-02-19 1993-09-07 Nec Corp 空気調和システム

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1458240B2 (de) * 1963-12-20 1970-10-08 United States Steel Corp., Pitts^ burgh, Pa. (V.St.A.) Regelvorrichtung für den Anpreßdr-uck zwischen einem Gußstrang und KlemmroHen
FR2042593A1 (fr) * 1969-05-13 1971-02-12 Concast Ag
DE1963146A1 (de) 1969-12-17 1971-06-24 Demag Ag Segmentrahmen fuer die Stuetz- bzw. Transportwalzen einer Metall-,insbesondere Stahlstranggiessanlage
DE2133144A1 (de) 1971-07-03 1973-01-18 Concast Ag Verfahren und vorrichtung zum ausfoerdern und richten eines stranges in einer stranggiessanlage
EP0058869A1 (fr) * 1981-02-21 1982-09-01 Sms Schloemann-Siemag Aktiengesellschaft Charpente de guidage et de soutien dans la zone d'entraînement et/ou de dressage dans une installation de coulée continue
AT371033B (de) * 1981-09-03 1983-05-25 Voest Alpine Ag Strangfuehrungsgeruest fuer eine stranggiessanlage

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0467877A2 (fr) * 1990-07-18 1992-01-22 VOEST-ALPINE Industrieanlagenbau GmbH Guidage de barre sur une installation de coulée continue
EP0467877A3 (en) * 1990-07-18 1992-02-26 Voest-Alpine Industrieanlagenbau Gesellschaft M.B.H. Guiding means for use in a continuous casting plant
EP0545104A2 (fr) * 1991-11-26 1993-06-09 Sms Schloemann-Siemag Aktiengesellschaft Procédé et dispositif pour coulée continue des lingots ou blooms
EP0545104A3 (en) * 1991-11-26 1993-06-30 Sms Schloemann-Siemag Aktiengesellschaft Method and apparatus for continuous casting of ingots or blooms
US5348074A (en) * 1991-11-26 1994-09-20 Sms Schloemann-Siemag Aktiengesellshaft Process and a device for continuous casting of slabs or ingots
US5433265A (en) * 1993-02-26 1995-07-18 Mannesmann Aktiengesellschaft Billet guide frame
EP1060816A1 (fr) * 1999-06-19 2000-12-20 SMS Demag AG Dispositif pour le reglage des segments de guidage du brin d'une installation de coulee continue entre cylindres
CN114871980A (zh) * 2022-05-31 2022-08-09 桂德(武汉)科工有限公司 一种夹紧装置及其组装方法
CN114871980B (zh) * 2022-05-31 2024-04-05 桂德(武汉)科工有限公司 一种夹紧装置及其组装方法

Also Published As

Publication number Publication date
DE3508658C2 (fr) 1988-04-14
DE3508658A1 (de) 1986-09-25
JPS61216844A (ja) 1986-09-26
EP0194656B1 (fr) 1988-10-19
ATE38000T1 (de) 1988-11-15

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