EP1585609B1 - Cooling of rolls in continuous casting plants - Google Patents

Cooling of rolls in continuous casting plants Download PDF

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Publication number
EP1585609B1
EP1585609B1 EP04702658A EP04702658A EP1585609B1 EP 1585609 B1 EP1585609 B1 EP 1585609B1 EP 04702658 A EP04702658 A EP 04702658A EP 04702658 A EP04702658 A EP 04702658A EP 1585609 B1 EP1585609 B1 EP 1585609B1
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EP
European Patent Office
Prior art keywords
bearing
roller
bearing housing
rollers
roller device
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.)
Expired - Lifetime
Application number
EP04702658A
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German (de)
French (fr)
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EP1585609A1 (en
Inventor
Herbert Brotzki
Thomas Fest
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
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SMS Demag AG
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Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1585609A1 publication Critical patent/EP1585609A1/en
Application granted granted Critical
Publication of EP1585609B1 publication Critical patent/EP1585609B1/en
Anticipated expiration legal-status Critical
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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
    • B22D11/12—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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S384/00—Bearings
    • Y10S384/90—Cooling or heating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Fertilizers (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Continuous Casting (AREA)

Abstract

A method for cooling a roller device, which has a right bearing housing, a left bearing housing, and a roller, which is rotatably supported by journals in the bearing housings, especially of strand guide rolls, roller table rollers, pinch rolls, support rolls, or driving rolls in continuous casting plants, in which a cooling medium cools the bearings mounted in the bearing housings and passes through an axial bore in the roller. The cooling medium enters the bearing housing of the roller device on one side, passes around the bearing mounted in this bearing housing, then flows through the axial bore in the roller to the other side, passes around the bearing mounted in the other bearing housing, and is then discharged from the roller device.

Description

Die Erfindung betrifft ein Verfahren zur Kühlung einer Rolleneinrichtung, bestehend aus einem rechten Lagergehäuse, einem linken Lagergehäuse und einer Rolle, welche mittels Lagerzapfen in den Lagergehäusen drehgelagert ist, insbesondere von Strangführungs- , Rollgangs- , Transport- ,Stütz- oder Treiberrollen in Stranggießanlagen, bei der ein Kühlmedium durch eine axiale Bohrung in der Rolle geleitet wird sowie eine Rolleneinrichtung.The invention relates to a method for cooling a roller device, comprising a right bearing housing, a left bearing housing and a roller which is rotatably supported by bearing journals in the bearing housings, in particular of strand guide, roller table, transport, support or driver rollers in continuous casting, in which a cooling medium is passed through an axial bore in the roller and a roller device.

Die DE 42 07 042 C1 beschreibt eine Vorrichtung zum Ankuppeln der Kühlmedienführung einer Stütz- und Transportwalze, insbesondere für Stranggießanlagen, die über Zapfen in Lagerböcken durch Wälzlager gelagert ist und über axial durch die Zapfen geführte Bohrungen von einem Kühlmedium durchströmt wird. Um eine langlebige Vorrichtung gattungsgemäßer Art zu schaffen, die bei konstruktiv einfachem Aufbau in instandhaltungsfreundlicher Weise ein sicheres Zu- bzw. Abführen des Kühlmediums gewährleistet, wird vorgeschlagen, dass jeder Lagerbock durch einen Deckel verschlossen ist, dass der Deckel einen Kühlkanal aufweist, der einenends an eine Kühlmittelzu- bzw. -abfuhr angeschlossen ist und anderenends im Bereich der Zapfenbohrung mündet, dass zwischen der Kanalmündung des Deckels und der Bohrung der Walze eine elastische Hülse vorgesehen ist, die kopfendig eine Dichtung aufweist, und dass die Dichtung eine koaxial zur Walzenachse angeordnete Dichtfläche berührt.DE 42 07 042 C1 describes a device for coupling the cooling media guide a support and transport roller, especially for continuous casting, which is mounted on pins in bearing blocks by bearings and flows through axially guided by the pin bores of a cooling medium. In order to create a durable device of the generic type, which ensures a safe supply and discharge of the cooling medium in a structurally simple design in maintenance-friendly manner, it is proposed that each bearing block is closed by a lid, that the lid has a cooling channel, the one end a Kühlmittelzu- or -abfuhr is connected and the other ends in the region of the pin bore, that between the channel mouth of the lid and the bore of the roller an elastic sleeve is provided, which has a head end seal, and that the seal is arranged coaxially with the roll axis sealing surface touched.

Aus der EP 0 859 676 B1 ist eine Drehdurchführung für die Kühlwasserzu- und ―ableitung eine Führungsrolle in einer Stranggießanlage bekannt. Dieser Erfindung liegt die Aufgabe zugrund, eine Drehdurchführung der vorgenannten Art zu schaffen, deren zwischen der Abdeckplatte und dem Lagerzapfen wirksame Abdichtung konstruktiv weniger aufwendig als die Abdichtung bei der bekannten Drehdurchführung ist. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Mittelteil der abdichtung als ringförmige, flanschartige Membran aus Kunststoff oder Gummi ausgebildet ist, die mit ihrem inneren Rand an der Außenseite der Buchse und mit ihrem äußeren Rand an dem Flansch anvulkanisiert ist.
Diese Drehdurchführung zeichnet sich durch ihre einfache konstruktive und kompakte Gestalt aus. Sie läßt sich komplett an der Stirnseite des Lagerzapfens montieren. Deshalb ist es nicht länger erforderlich, den axialen Kanal des Verteilsystems in der Kühlrolle im vorderen stirnseitigen Bereich des Algerzapfens im Durchmesser zu vergrößern, um darin Teile der Abdichtung unterzubringen. Der zentrale Kanal kann also durchgehend den gleichen Querschnitt haben.From EP 0 859 676 B1, a rotary feedthrough for the cooling water supply and discharge is known, a guide roller in a continuous casting plant. This invention has for its object to provide a rotary feedthrough of the aforementioned type, the effective between the cover plate and the journal sealing construction is less expensive than the seal in the known rotary feedthrough. This object is achieved in that the middle part of the seal is designed as an annular, flange-like membrane made of plastic or rubber, with its inner edge on the outside the bushing and vulcanized with its outer edge to the flange.
This rotary feedthrough is characterized by its simple constructive and compact design. It can be completely mounted on the front side of the journal. Therefore, it is no longer necessary to increase in diameter the axial channel of the distribution system in the cooling roller in the front end portion of the Algerzapfens to accommodate parts of the seal. The central channel can thus have the same cross section throughout.

Ausgestaltungen einer Drehdurchführung sind z.B. in der EP 1 125 656 A2 und in der WO 99 / 26745 beschrieben.Embodiments of a rotary feedthrough are known e.g. in EP 1 125 656 A2 and in WO 99/26745.

Die DE 198 16 577 C1 beschreibt eine Strangführungseinrichtung zum Erzeugen von Metallsträngen, insbesondere aus Stahl, mit in Segmente eingeteilte Ober- und Untergerüste, die mit Rollen bestückt sind, welche über Verbindungsleitungen an eine Kühlmedienversorgungseinrichtung angeschlossen sind.
Um mit einfachen Mitteln eine wartungsarme, leckagefreie Verbindung zwischen den Rollen und der Kühlmedienversorgungseinrichtung zu schaffen, die vor Ort leicht lös- und wieder verbindbar und übersichtlich zuordenbar ist, wird erfindungsgemäß vorgeschlagen, dass an den Rollen Hülsen vorgesehen sind, deren Mündung horizontal ausgerichtet ist, dass die Hülsen mit Verbindungsleitungen korrespondieren, welche als metallsiche Rohre ausgebildet sind, die einenends an die Kühlmedienversorungseinrichtung angeschlossen sind und anderenends mit einer Dichtung in Verbindung stehen, die leckagefrei eine axiale und laterale Bewegung zwischen Rohrende und Hülse zulässt.DE 198 16 577 C1 describes a strand guiding device for producing metal strands, in particular of steel, with segmented upper and lower scaffolds, which are equipped with rollers, which are connected via connecting lines to a cooling medium supply device.
In order to provide a simple, low-maintenance, leak-free connection between the rollers and the cooling medium supply device, which is easily detachable and re-connectable and clearly assignable on site, it is proposed according to the invention that sleeves are provided on the rollers, the mouth of which is oriented horizontally, in that the sleeves correspond to connecting conduits which are designed as metal-like tubes which are connected at one end to the cooling medium supply device and at the other end to a seal which allows leakage-free axial and lateral movement between the tube end and the sleeve.

Nachteilig bei den bekannten Ausführungen einer solchen Rolleneinrichtung ist, dass das Kühlmedium nur an einer Seite der Rolle zu- und abgeleitet wird. Das Kühlmedium wird dabei durch eine axiale Bohrung in der Rolle auf die gegenüberliegende Seite gefördert, dort umgelenkt und durch einen Ringkanal wieder zur Ausgangsseite geleitet, von wo eine Verbindung zu einem Abkühl- und Vorratsbehälter besteht.A disadvantage of the known embodiments of such a roller device is that the cooling medium only on one side of the role and is derived. The cooling medium is thereby promoted by an axial bore in the role on the opposite side, deflected there and again by an annular channel directed to the output side, from where there is a connection to a cooling and storage tank.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, die Kühlwirkung einer solchen Rolleneinrichtung zu erhöhen und die Montage und Demontage der einzelnen Bauteile zu verbessern.Based on this prior art, the present invention seeks to increase the cooling effect of such a roller device and to improve the assembly and disassembly of the individual components.

Diese Aufgabe wird erfindungsgemäß bei dem Verfahren gemäß Anspruch 1 gelöst.This object is achieved in the method according to claim 1.

In einer besonderen Ausgestaltung der Erfindung wird das Kühlmedium aus dem Lagergehäuse durch ein an der Stirnseite angeflanschtes starres oder flexibles Verbindungsstück in die Drehdurchführung geleitet.In a particular embodiment of the invention, the cooling medium from the bearing housing is passed through a flanged on the front side rigid or flexible connector in the rotary feedthrough.

Die Aufgabe wird erfindungsgemäß bei der Rollen einrichtung gemäß Anspruch 3 gelöst.The object is achieved according to the invention in the rolling device according to claim 3.

Eine vorteilhafte Ausbildung der Erfindung besteht darin, dass die mittig im Lagerdeckel angeordnete Drehdurchführung durch ein ein starres oder flexibles Verbindungsstück mit der Austrittsbohrung an der Stirnseite des Lagergehäuses verbunden ist.An advantageous embodiment of the invention is that the centrally arranged in the bearing cap rotary feedthrough is connected by a rigid or flexible connecting piece with the outlet bore on the end face of the bearing housing.

Von Vorteil ist auch, dass die Drehdurchführung lösbar in dem Lagerdeckel befestigt ist.Another advantage is that the rotary feedthrough is releasably secured in the bearing cap.

Die Erfindung sieht weiterhin vor, dass die Drehdurchführung in den Lagerdeckeln Längenausdehnungen der Rolle ausgleichen kann.The invention further provides that the rotary feedthrough in the bearing caps can compensate for linear expansion of the roller.

Ein Ausführungsbeispiel der Erfindung wird anhand von schematischen Zeichnungen näher beschrieben. Es zeigen:

Fig. 1
eine Rolleneinrichtung in perspektivischer Ansicht,
Fig. 2
ein Lagergehäuse im Längsschnitt und
Fig. 3
das Lagergehäuse aus Fig. 2 in Seitenansicht (Stirnseite).
An embodiment of the invention will be described in more detail with reference to schematic drawings. Show it:
Fig. 1
a roller device in perspective view,
Fig. 2
a bearing housing in longitudinal section and
Fig. 3
the bearing housing of FIG. 2 in side view (front side).

In Fig. 1 ist eine Rolleneinrichtung 1, bestehend aus einem rechten Lagergehäuse 2 und einem linken Lagergehäuse 3 und einer Rolle 4, dargestellt. Auf den Stirnseiten sind Verbindungsstücke 5, 6 angeflanscht, welche die Austrittsbohrungen mit den Drehdurchführungen 7, 8 in den Lagerdeckel 9, 10 verbinden. Zur Wartung oder bei einer Störung wird das Verbindungsstück 5, 6 gelöst. Anschließend kann der Lagerdeckel 9, 10 mit der Drehdurchführung 7, 8 vom Lagergehäuse 3, 4 abgenommen werden. Es besteht auch die Möglichkeit, nur die Drehdurchführung 7, 8 auszubauen.In Fig. 1, a roller device 1, consisting of a right bearing housing 2 and a left bearing housing 3 and a roller 4, is shown. On the end faces connecting pieces 5, 6 are flanged, which connect the outlet holes with the rotary unions 7, 8 in the bearing cap 9, 10. For maintenance or in case of failure, the connecting piece 5, 6 is released. Subsequently, the bearing cap 9, 10 with the rotary feedthrough 7, 8 are removed from the bearing housing 3, 4. It is also possible to expand only the rotary feedthrough 7, 8.

Die Anordnung der Bohrungen 15 für den geschlossenen Hohlraum um ein Lager 13 ist in Fig. 2 dargestellt. Der Hohlraum wird durch mehrere Bohrungen 15 gebildet, welche sich in einem Abstand von den Außenflächen des Lagergehäuses 2 befinden. Die Bohrungen gehen dabei unter einem Winkel ineinander über oder liegen rechtwinklig zueinander. Um einen geschlossenen Hohlraum zu erhalten, werden einzelne Bohrungen an der Oberfläche des Lagergehäuses 2 verschlossen. Das Kühlmedium wird auf der Unterseite in das Lagergehäuse 2 eingebracht, durchfliesst den Hohlraum, welcher um das Lager 13 angeordnet ist und erreicht eine Austrittsbohrung auf der Stirnseite des Lagergehäuses 2.The arrangement of the holes 15 for the closed cavity around a bearing 13 is shown in Fig. 2. The cavity is formed by a plurality of bores 15, which are located at a distance from the outer surfaces of the bearing housing 2. The holes are at an angle into one another or lie at right angles to each other. To obtain a closed cavity, individual holes are closed on the surface of the bearing housing 2. The cooling medium is introduced into the bearing housing 2 on the underside, flows through the cavity, which is arranged around the bearing 13 and reaches an outlet bore on the end face of the bearing housing 2.

In Fig. 3 ist die Stirnseite eines Lagergehäuses 2 zu sehen. Die auf der rechten Seite, neben den Lagerdeckel 9, angeordnete Austrittsbohrung wird durch ein Verbindungsstück 5 mit der Drehdurchführung 7 verbunden. Die Drehdurchführung 7 befindet sich mittig in dem Lagerdeckel 9.In Fig. 3, the end face of a bearing housing 2 can be seen. On the right side, next to the bearing cap 9, arranged outlet bore is connected by a connecting piece 5 with the rotary feedthrough 7. The rotary feedthrough 7 is located centrally in the bearing cap. 9

BezugszeichenübersichtReference numeral Overview

11
Rolleneinrichtungroller device
22
Lagergehäuse rechte SeiteBearing housing right side
33
Lagergehäuse linke seiteBearing housing left side
44
Rollerole
55
Verbindungsstück rechte SeiteConnector right side
66
Verbindungsstück linke SeiteConnector left side
77
Drehdurchführung rechte SeiteRotary feedthrough right side
88th
Drehdurchführung linke SeiteRotary union left side
99
Lagerdeckel rechte SeiteBearing cover right side
1010
Lagerdeckel linke SeiteBearing cover left side
1111
Rollenzapfen rechte SeiteRoller journal right side
1212
Rollenzapfen linke SeiteRoller pin left side
1313
Lager rechte SeiteStock right side
1414
Lager linke SeiteStock left side
1515
Bohrungendrilling

Claims (6)

  1. Method of cooling a roller device, consisting of a righthand bearing housing, a lefthand bearing housing and a roller, which is rotationally mounted in the bearing housings by means of bearing spigots, particularly of strip guide rollers, roller path rollers, transport rollers, backing rollers or drive rollers in continuous casting plants, in which a coolant cools the bearings (13, 14) incorporated in the bearing housing (2, 3) and is conducted into a roller via an axial bore, characterised in that the coolant enters into the bearing housing (2, 3) of the roller device (1) at one end, is conducted around the bearing (13, 14) incorporated in this bearing housing (2, 3), subsequently flows through the axial bore in the roller (4) at the other end, is conducted there around the bearing (13, 14) incorporated in the other bearing housing (2, 3) and is thereafter conducted away from the roller device (1).
  2. Method according to claim 1, characterised in that the coolant is conducted from the bearing housing (2, 3) through a rigid or flexible connecting piece (5, 6), which is flange-mounted at the end face, into the rotary passage (7, 8).
  3. Roller device for carrying out the method according to one of the preceding claims, consisting of a righthand bearing housing, a lefthand bearing housing and a roller rotatably mounted in the bearing housings by means of bearing spigots, particularly of strip guide rollers, roller path rollers, transport rollers, backing rollers or drive rollers in continuous casting plants, in which a coolant is conducted into the roller via an axial bore and that bores (15) are arranged around the bearings (13, 14), which are incorporated in the bearing housings (2, 3), and form a closed cavity, characterised in that an outlet bore, which is arranged at the end face of the bearing housing (2, 3), for the coolant is disposed near the bearing cover (9, 10).
  4. Roller device according to claim 3, characterised in that the rotary passage (7, 8) arranged centrally in the bearing cover (9, 10) is connected by a rigid or flexible connecting piece (5, 6) with the outlet bore at the end face of the bearing housing (2, 3).
  5. Roller device according to claim 4, characterised in that the rotary passage (7, 8) is detachably connected with the bearing cover (9, 10).
  6. Roller device according to one of claims 3 to 5, characterised in that the rotary passage (7, 8) in the bearing cover (9, 10) can compensate for expansions in length of the roller (4).
EP04702658A 2003-01-23 2004-01-16 Cooling of rolls in continuous casting plants Expired - Lifetime EP1585609B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10302474 2003-01-23
DE10302474A DE10302474A1 (en) 2003-01-23 2003-01-23 Cooling of rolls in continuous casting plants
PCT/EP2004/000278 WO2004065040A1 (en) 2003-01-23 2004-01-16 Cooling of rolls in continuous casting plants

Publications (2)

Publication Number Publication Date
EP1585609A1 EP1585609A1 (en) 2005-10-19
EP1585609B1 true EP1585609B1 (en) 2006-07-12

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EP04702658A Expired - Lifetime EP1585609B1 (en) 2003-01-23 2004-01-16 Cooling of rolls in continuous casting plants

Country Status (17)

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US (2) US7601110B2 (en)
EP (1) EP1585609B1 (en)
JP (1) JP4805136B2 (en)
KR (1) KR101068470B1 (en)
CN (1) CN100361765C (en)
AT (1) ATE332777T1 (en)
AU (1) AU2004205470B2 (en)
BR (1) BRPI0406897B1 (en)
CA (1) CA2513819C (en)
DE (2) DE10302474A1 (en)
ES (1) ES2268618T3 (en)
MX (1) MXPA05007742A (en)
PL (1) PL207744B1 (en)
RU (1) RU2324573C2 (en)
UA (1) UA83021C2 (en)
WO (1) WO2004065040A1 (en)
ZA (1) ZA200504194B (en)

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AU2019264544A1 (en) * 2018-11-30 2020-06-18 Ciilock Engineering Pty Ltd A roller assembly and a roller carriage for the same
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CN2406751Y (en) * 1999-09-06 2000-11-22 王金堂 Continuous casting roller path with double water innercooling and outer shower cooling
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Publication number Priority date Publication date Assignee Title
US10807158B2 (en) 2015-12-11 2020-10-20 Sms Group Gmbh Bearing block for holding a bearing for a roller

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RU2005126609A (en) 2006-02-10
BRPI0406897B1 (en) 2013-06-25
ATE332777T1 (en) 2006-08-15
PL376212A1 (en) 2005-12-27
US20090314468A1 (en) 2009-12-24
AU2004205470B2 (en) 2008-09-11
DE10302474A1 (en) 2004-08-05
ZA200504194B (en) 2006-05-31
AU2004205470A1 (en) 2004-08-05
BRPI0406897A (en) 2006-01-03
US20060183614A1 (en) 2006-08-17
EP1585609A1 (en) 2005-10-19
CN100361765C (en) 2008-01-16
AU2004205470A8 (en) 2004-08-05
DE502004000956D1 (en) 2006-08-24
CA2513819A1 (en) 2004-08-05
MXPA05007742A (en) 2005-09-30
CA2513819C (en) 2011-01-04
JP2006515804A (en) 2006-06-08
UA83021C2 (en) 2008-06-10
PL207744B1 (en) 2011-01-31
KR101068470B1 (en) 2011-09-30
RU2324573C2 (en) 2008-05-20
US7601110B2 (en) 2009-10-13
JP4805136B2 (en) 2011-11-02
KR20050097498A (en) 2005-10-07
ES2268618T3 (en) 2007-03-16
WO2004065040A1 (en) 2004-08-05
CN1771101A (en) 2006-05-10
US8216117B2 (en) 2012-07-10

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