EP0037549A1 - Rouleaux de guidage coaxial à proximité de billettes pour une installation de coulée continue pour l'acier - Google Patents

Rouleaux de guidage coaxial à proximité de billettes pour une installation de coulée continue pour l'acier Download PDF

Info

Publication number
EP0037549A1
EP0037549A1 EP81102404A EP81102404A EP0037549A1 EP 0037549 A1 EP0037549 A1 EP 0037549A1 EP 81102404 A EP81102404 A EP 81102404A EP 81102404 A EP81102404 A EP 81102404A EP 0037549 A1 EP0037549 A1 EP 0037549A1
Authority
EP
European Patent Office
Prior art keywords
guide rollers
strand
adjacent
clutch disc
strand guide
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
EP81102404A
Other languages
German (de)
English (en)
Other versions
EP0037549B1 (fr
Inventor
Hans Streubel
Hans Otto Thörner
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.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag 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
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to AT81102404T priority Critical patent/ATE3253T1/de
Publication of EP0037549A1 publication Critical patent/EP0037549A1/fr
Application granted granted Critical
Publication of EP0037549B1 publication Critical patent/EP0037549B1/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
    • B22D11/1287—Rolls; Lubricating, cooling or heating rolls while in use

Definitions

  • the invention relates to coaxially adjacent, independently supported strand guide rollers in a steel continuous casting plant for slabs.
  • the guide rollers of continuous casting plants are exposed to high mechanical alternating stresses with each revolution due to the ferrostatic pressure acting on the continuous crust, which can amount to more than 100 tons per roll in slab plants. Additional stress on the rollers is caused by the shock-like temperature increase of the roller surface with every contact with the hot strand. Depending on the strength of the roll material, these mechanical and thermal loads require a certain roll diameter.
  • the respective roll diameter requires a certain one Minimum distance and thus the size of the unsupported areas between successive roles.
  • the interdependency between the permissible roll load, the strand width, the crust thickness, the ferrostatic pressure, the roll diameter and the distance between successive rolls limits the casting speed for large casting formats, since harmful bulges and breakthroughs must be avoided.
  • Strands with widths of, for example, over 2 m wide and at least 150 mm thick either require costly strand guiding frames or can only be cast with a relatively short liquid core or only at a relatively slow speed in the case of vertical or arch-shaped strand guiding.
  • a known strand guide roller consists of several roller sections, the one-sided pins of which are screwed into recesses in the adjacent roller section, a support bearing being provided between the roller sections.
  • a cooling channel runs through the roller sections.
  • a strand guide is also known, two guide rollers each being mounted coaxially adjacent to one another over the strand width.
  • (DE-AS 25 44 556) With this inexpensive construction, the guide rollers can be installed and removed more quickly.
  • the disadvantage here is that if there is a strand lying on one side only on one roll, the coaxially adjacent other roll stops and is subjected to high thermal stresses due to one-sided overheating by the strand. This promotes the formation of fire cracks in this area and, despite cooling, the roll is bent towards the strand. When the strand comes into contact again, the bearings are subjected to high loads. The non-circular running of the guide roller can lead to uneven support of the strand and thus to strand errors. Furthermore, the cooling system is complex with two adjacent roles.
  • the invention is intended to avoid the disadvantages of the known strand guides. Your task is to create a structurally simple, maintenance-friendly and inexpensive strand guide with coaxially adjacent, independently mounted guide rollers. an uneven thermal stress on cooled guide rollers is avoided and an even, good strand support is guaranteed without excessive roller and bearing loads leading to greater wear. This is intended to extend the service life of such rollers with their bearings.
  • this is achieved in that, in the area of the strand path of a slab strand, adjacent bearing journals of two cooled strand guide rollers are connected by a coupling disk which can be plugged onto the bearing journals, and this coupling disk has engaging surfaces for the rotary movement on both sides with the bearing journals.
  • the clutch disk for receiving flatly formed drivers of the guide rollers in the manner of an Oldham clutch is provided on both sides with a slot which run perpendicular to one another, the outer diameter of the clutch disk being equal to or larger than the diameter of the roller journal. This coupling also makes it possible to compensate for larger axis deviations of the neighboring guide rollers.
  • the support of the casting strand can be further improved according to a further feature of the invention in that the clutch disc has the same outer diameter as the associated coaxially adjacent guide rollers. In this way, the unsupported area caused by the adjacent roller bearings becomes open. reduced the width of the housing of a roller bearing.
  • square pins can be arranged on the adjacent bearing pins of the guide rollers, to which a corresponding recess is assigned on each side of the clutch disc.
  • the square pin can advantageously be designed with cambered side surfaces in order to reduce the surface pressure to reduce radial displacements.
  • Simplification of the coolant flow into the interior of the roll can be achieved in that the clutch disc and / or the adjacent roll journals have devices for connecting the coolant flow from one roll to the adjacent roll.
  • the coolant can also flow through both rollers in one direction if the outer pin of one roller is provided with an inflow and the outer pin of the other roller is provided with a drain.
  • the coolant channel in the area of the clutch disc is expanded to form an annular groove.
  • the strand support is finally further improved in that the bearings of successive guide rollers in the strand running direction are offset in the axial direction.
  • an arcuate strand guide arranged downstream of a mold 1 is formed by successively arranged guide rollers 2 and 3.
  • the guide rollers 3 are driven.
  • 2 and 3 show sections of two alternative configurations of the roller guide.
  • two strand guide rollers 2a, 2b, 3a, 3b, and 2c, 2d, 3c, 3d are coaxially adjacent in two bearings 4, 5 and 6, 7 and 8, 9 and 10, 11, independently of each other.
  • the guide rollers 2a and 2b - or 2c and 2d are each provided with an inner channel 12 for the passage of a coolant, with rotary unions 13, 14 being arranged on the outer pins of the rollers.
  • the driven strand guide rollers 3b and 3d are provided with a drive flange 15.
  • the internal cooling of the coaxial ge takes place stored guide rollers 3a, 3b and 3c, 3d according to the reversal principle in two concentric channels 16, 17, the supply and discharge of the coolant through a double rotary union 18 on the outer pin of the guide rollers 3a and 3c.
  • the adjacent bearings 5, 6 and 9, 10 of successive guide rollers are offset from one another in the axial direction for better support of the strand.
  • a clutch disc 19 is arranged between the guide rollers 2a, 2b and 3a, 3b, respectively. This area is shown enlarged in FIGS. 4 and 5.
  • the guide rollers 2a and 2b as well as 3a and 3b are connected according to the principle of the Oldham coupling, which enables compensation of axis deviations.
  • the clutch disc 19, as shown in FIG. 5, is provided on both sides with a slot 20 and 21, which are perpendicular to each other.
  • Flat pins 22 and 23 are arranged on the pins of the guide rollers 2a, 2b, 3a, 3b, which are slid into the slots 20, 21 of the clutch disc 19.
  • the diameter of the clutch disc 19 is greater than the greatest height of the drivers 22 and 23. In this way, sufficiently strong transmission cross sections 24, 25 and 26, 27 are guaranteed.
  • the coolant channels 12 of the guide rollers 2a and 2b, 3a, 3b are connected by a tap in the olle R sealingly inserted pipe section 28th
  • the bearings 5, 6 on the strand side are each formed by the plates 31, 32 Cooling jacket 33, 34 provided.
  • the sheets 31, 32 are guided for shielding via the clutch disc 19.
  • a clutch disc 35 is arranged between the bearings 9 and 10 of the guide rollers 2c, 2d and 3c, 3d.
  • This embodiment is shown enlarged in detail in FIGS. 6 and 7.
  • the clutch disc 35 is provided on both sides with holes 36 for centering on the pin of the rollers 2c, 2d, 3c, 3d.
  • the pins are each provided with a square 37, each of which fits into a corresponding recess 38 in the clutch disc 35.
  • the cooling channels 16 of the coaxial guide rollers 2c, 2d, 3c, 3d are connected by pipe pieces 39, 40 inserted into a through bore of the clutch disc 35, which are inserted in the cooling channels 16 in a sealing manner. Between the pipe sections 39, 40, the clutch disc 35 is expanded by an annular groove 41 for cooling.
  • the outer diameter of the clutch disc 35 is equal to the outer diameter of the adjacent guide rollers 2c, 2d and 3c, 3d.
  • the clutch disc 35 is provided on each side with an annular groove 42, in each of which a bearing ring 43 engages.
  • the clutch disc (19 or 35) can also be designed in a ring shape, the driving surfaces e.g. are designed as internal teeth.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Metal Rolling (AREA)
EP81102404A 1980-04-08 1981-03-31 Rouleaux de guidage coaxial à proximité de billettes pour une installation de coulée continue pour l'acier Expired EP0037549B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81102404T ATE3253T1 (de) 1980-04-08 1981-03-31 Koaxial benachbart gelagerte strangfuehrungsrollen in einer stahl-stranggiessanlage fuer brammen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3013484 1980-04-08
DE19803013484 DE3013484A1 (de) 1980-04-08 1980-04-08 Koaxial benachbart gelagerte strangfuehrungsrollen in einer stahl-stranggiessanlage fuer brammen

Publications (2)

Publication Number Publication Date
EP0037549A1 true EP0037549A1 (fr) 1981-10-14
EP0037549B1 EP0037549B1 (fr) 1983-05-11

Family

ID=6099514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81102404A Expired EP0037549B1 (fr) 1980-04-08 1981-03-31 Rouleaux de guidage coaxial à proximité de billettes pour une installation de coulée continue pour l'acier

Country Status (7)

Country Link
US (1) US4485836A (fr)
EP (1) EP0037549B1 (fr)
JP (1) JPS574367A (fr)
AT (1) ATE3253T1 (fr)
CA (1) CA1170814A (fr)
DE (2) DE3013484A1 (fr)
ES (1) ES268984Y (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2604498A1 (fr) * 1986-09-30 1988-04-01 Fives Cail Babcock Dispositif d'etancheite pour le palier intermediaire d'un rouleau a plusieurs appuis
DE19836537C1 (de) * 1998-08-06 1999-09-23 Mannesmann Ag Strangführungsrolle für eine Metall-, insbesondere Stahlstranggießanlage
DE10109893C1 (de) * 2001-02-21 2002-08-22 Mannesmann Roehren Werke Ag Vorrichtung zum Verbinden der Kühlmediumführung koaxial benachbart gelagerter innengekühlter Rollen
WO2015034421A1 (fr) 2013-09-04 2015-03-12 Aktiebolaget Skf Ensemble de lignes de rouleaux pour une coulée continue
AT517252B1 (de) * 2015-05-27 2019-03-15 Primetals Technologies Austria GmbH Vermeidung von Wassergassen bei einer Strangführung

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5649889A (en) * 1994-10-06 1997-07-22 Bethlehem Steel Corporation Stress alleviating guide roll for high temperature applications
DE102006040011A1 (de) * 2006-04-21 2007-10-25 Sms Demag Ag Strangführungsrolle
WO2010005354A1 (fr) * 2008-07-08 2010-01-14 Aktiebolaget Skf Ligne de rouleau dans une machine de coulée continue
US20110213486A1 (en) * 2008-11-04 2011-09-01 Sms Siemag Aktiengesellschaft Method and device for controlling the solidification of a cast strand in a strand casting plant in startup of the injection process
CN103587915A (zh) * 2012-08-17 2014-02-19 中钢集团衡阳重机有限公司 辊道轴承座定位装置及该定位装置的制造和使用方法
SE1451560A1 (sv) * 2014-12-17 2015-11-10 Skf Ab Coupling arrangement for an idler roll line
US11529818B2 (en) 2018-11-16 2022-12-20 Hewlett-Packard Development Company, L.P. Co-axial split drive rollers
AT526034A1 (de) * 2022-08-09 2023-08-15 Primetals Technologies Austria GmbH Strangführungsrolle zum Führen eines metallischen Strangs in einer Stranggießanlage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2420514B1 (de) * 1974-04-27 1975-07-10 Kloeckner-Werke Ag, 4100 Duisburg Mehrfach gelagerte, in Rollenabschnitte unterteilte Führungsrolle für Stranggießanlagen
DE2428213A1 (de) * 1974-06-11 1976-01-08 Schloemann Siemag Ag Strangfuehrung in einer stranggiessanlage
FR2326258A1 (fr) * 1975-10-04 1977-04-29 Demag Ag Charpente d'appui a rouleaux pour installations de coulee continue de brames d'acier, notamment pour installations en courbe
DE2722201A1 (de) * 1976-05-18 1977-12-01 Concast Ag Rollenanordnung zum fuehren eines profilrohlings in einer stranggiessanlage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347308A (en) * 1965-09-10 1967-10-17 United Steel Companies Ltd Machines for continuously casting metal
DE2439359C3 (de) * 1974-08-16 1982-10-07 SMS Schloemann-Siemag AG, 4000 Düsseldorf Strangführungsgerüst in einer Stranggießanlage
JPS5722124Y2 (fr) * 1975-06-24 1982-05-13
AT336207B (de) * 1975-07-18 1977-04-25 Voest Ag Befestigung fur in langsrichtung mehrfach geteilte rollen in stranggiessanlagen
US3981348A (en) * 1975-10-20 1976-09-21 Allis-Chalmers Corporation Support and lubrication system for continuous casting machine rollers
CH596911A5 (fr) * 1976-09-24 1978-03-31 Concast Ag
AT344349B (de) * 1976-10-13 1978-07-10 Voest Ag Strangfuehrungsrolle fuer stranggiessanlagen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2420514B1 (de) * 1974-04-27 1975-07-10 Kloeckner-Werke Ag, 4100 Duisburg Mehrfach gelagerte, in Rollenabschnitte unterteilte Führungsrolle für Stranggießanlagen
DE2428213A1 (de) * 1974-06-11 1976-01-08 Schloemann Siemag Ag Strangfuehrung in einer stranggiessanlage
FR2326258A1 (fr) * 1975-10-04 1977-04-29 Demag Ag Charpente d'appui a rouleaux pour installations de coulee continue de brames d'acier, notamment pour installations en courbe
DE2544556B2 (de) * 1975-10-04 1978-02-02 Demag Ag, 4100 Duisburg Stuetzrollengeruest fuer stahl-brammenstranggiessanlagen, insbesondere fuer bogen- brammenstranggiessanlagen
CH595908A5 (fr) * 1975-10-04 1978-02-28 Demag Ag
DE2722201A1 (de) * 1976-05-18 1977-12-01 Concast Ag Rollenanordnung zum fuehren eines profilrohlings in einer stranggiessanlage

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2604498A1 (fr) * 1986-09-30 1988-04-01 Fives Cail Babcock Dispositif d'etancheite pour le palier intermediaire d'un rouleau a plusieurs appuis
DE19836537C1 (de) * 1998-08-06 1999-09-23 Mannesmann Ag Strangführungsrolle für eine Metall-, insbesondere Stahlstranggießanlage
AT410411B (de) * 1998-08-06 2003-04-25 Mannesmann Ag Strangführungsrolle für eine metall-, insbesondere stranggiessanlage
DE10109893C1 (de) * 2001-02-21 2002-08-22 Mannesmann Roehren Werke Ag Vorrichtung zum Verbinden der Kühlmediumführung koaxial benachbart gelagerter innengekühlter Rollen
WO2002066182A1 (fr) * 2001-02-21 2002-08-29 Mannesmannröhren-Werke Ag Dispositif servant a raccorder le systeme d'acheminement de liquide de refroidissement de cylindres a refroidissement interne disposes cote a cote de maniere coaxiale
WO2015034421A1 (fr) 2013-09-04 2015-03-12 Aktiebolaget Skf Ensemble de lignes de rouleaux pour une coulée continue
CN105636722A (zh) * 2013-09-04 2016-06-01 斯凯孚公司 用于连续铸造的轧制线组件
EP3041620A4 (fr) * 2013-09-04 2017-04-19 Aktiebolaget SKF Ensemble de lignes de rouleaux pour une coulée continue
AT517252B1 (de) * 2015-05-27 2019-03-15 Primetals Technologies Austria GmbH Vermeidung von Wassergassen bei einer Strangführung

Also Published As

Publication number Publication date
DE3013484A1 (de) 1981-10-15
CA1170814A (fr) 1984-07-17
ES268984U (es) 1983-10-16
ES268984Y (es) 1984-04-01
DE3160259D1 (en) 1983-06-16
US4485836A (en) 1984-12-04
JPS574367A (en) 1982-01-09
EP0037549B1 (fr) 1983-05-11
ATE3253T1 (de) 1983-05-15

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