EP2598262B1 - Rolling stand with roll bearing - Google Patents

Rolling stand with roll bearing Download PDF

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Publication number
EP2598262B1
EP2598262B1 EP11748543.3A EP11748543A EP2598262B1 EP 2598262 B1 EP2598262 B1 EP 2598262B1 EP 11748543 A EP11748543 A EP 11748543A EP 2598262 B1 EP2598262 B1 EP 2598262B1
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EP
European Patent Office
Prior art keywords
roll
work
rolls
axial
chock
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Not-in-force
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EP11748543.3A
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German (de)
French (fr)
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EP2598262A1 (en
Inventor
Peter Pentschev
Herbert Schaupmayr
Andreas Rab
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Andritz AG
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Andritz AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/18—Adjusting or positioning rolls by moving rolls axially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/142—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls by axially shifting the rolls, e.g. rolls with tapered ends or with a curved contour for continuously-variable crown CVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2269/00—Roll bending or shifting
    • B21B2269/12—Axial shifting the rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/40—Control of flatness or profile during rolling of strip, sheets or plates using axial shifting of the rolls

Definitions

  • the subject of this invention is a rolling device with work rolls and optionally with intermediate rolls, which are mounted by means of roll chocks via radial bearings in a roll stand, wherein the deflection of the work rolls can be influenced via bending blocks.
  • the subject of this invention also provides a method for conversion, in particular for retrofitting, a rolling stand with work rolls and / or intermediate rolls without Axialverschiebungs adopted on a roll stand with Axialverschiebungs arthritis.
  • Roller shifters are generally used to widen the flatness range using individual roll cuts. This brings logistical, business and qualitative benefits.
  • the displacement device In conventional rolling stands with axial displacement, the displacement device is fixedly integrated into the rolling stand.
  • the work rolls have a one-piece construction and are mounted on roll chocks in the rolling stand.
  • the roll chocks are also constructed in one piece and at the same time include the radial bearings and the thrust bearings for the work rolls.
  • Roll stands with axial displacement devices for the work rolls and optionally for the intermediate rolls have a more complex structure than rolling stands without axial displacement and are therefore more expensive.
  • the US 2,669,493 discloses a roll stand with a device for axially positioning the rolls.
  • the invention is therefore an object of the invention to disclose a rolling device that can be retrofitted with a axial displacement for the work rolls without much time and cost.
  • a rolling device in which for a axial displacement of at least one work roll or an intermediate roll, a roll stub is attached to this work roll or intermediate roll.
  • this roller stub is screwed, but it can also be attached via an adhesive connection or via a press fit.
  • the roller stub is mounted on a thrust bearing in another roll chock, wherein the other roll chock is screwed to the roll chock of the axially displaceable rollers.
  • the roll chock is slidable via an axial guide relative to the bending block in the axial direction.
  • the rolling device according to the invention can thus be easily retrofitted with an axial displacement device.
  • an axial displacement device Through the work rolls or intermediate rolls with screw-on roll stubs and through the two-piece roll chocks a subsequent conversion designed particularly simple, since only a few components must be replaced.
  • rollers are secured with the attached thereto roller stubs via an axial lock in position.
  • the bearing cap via an intermediate piece with the associated roll chock, in which only the radial bearing is arranged, bolted.
  • the bearing caps, the spacers and the corresponding roller stubs are unscrewed.
  • the existing rollers are then screwed correspondingly longer roller stub for receiving the axial bearing.
  • These roller stubs are mounted via thrust bearings in a further roll chock, wherein the other roll chock is bolted to the existing roll chock for the radial bearing.
  • the entire bearing system for the axial bearing is thus easily screwed to the existing rolling device for a conversion. Retrofitting is possible with a minimum of time and expense.
  • a roll stub is screwed to both work rolls.
  • both work rolls can be easily retrofitted with an axial displacement device.
  • the subject of this invention also provides a method for converting a rolling stand with work rolls and optionally intermediate rolls without axial displacement on a roll stand with Axialverschiebe listening.
  • the method is characterized in that attached to at least one work roll or an intermediate roll a stub roll - preferably screwed - and that is screwed to a roll chock of this roll another roll chock.
  • the roller stub is mounted on a thrust bearing in another roll chock and the Roll chock is slidable via an axial guide in the axial direction, so that in an axial displacement of the other roll chock and the roll chock and the corresponding roller are moved in the axial direction.
  • the axial displacement of the roller or rollers is normally performed via a hydraulic cylinder. However, it is also conceivable that the axial displacement is performed via an electromechanical linear drive. This can save the complex hydraulic system and increase energy efficiency.
  • the process offers the advantage that the existing roll chocks for the radial bearings, the existing bearing caps and the existing work rolls can still be used without machining.
  • FIG. 1 a conventional rolling device 1 according to the prior art is shown with an axial displacement device.
  • the work rolls 2 are made in one piece. They are mounted on radial bearings 3 and thrust bearing 8, which are arranged on the roller stub 9, in a one-piece work roll chock 4.
  • the bearing cap 20 are screwed. The axial forces are transmitted via the thrust bearing 8 on the work rolls 2.
  • Fig. 2 shows the rolling device 1 'according to the invention, wherein neither a Axialverriegelung nor an axial displacement device are shown for better illustration.
  • the roll chocks 5 can be moved via the axial guide 14 relative to the bending block 11 in the axial direction.
  • threaded holes 13 are arranged so that there is a roll stub (not shown) can be screwed.
  • Fig. 3 is the rolling device 1 'from Fig. 2 shown with bearing cap 16 for the work rolls 2 '.
  • the work rolls 2 ' are fixed in their axial position by bolts (not shown).
  • the bearing caps 16 are bolted via the screw 17 'with the intermediate piece 7, which in turn is screwed on the screw 17 "with the respective roll chock 5.
  • Fig. 4 is the rolling device 1 'according to the invention Fig. 2 shown with an axial displacement device 18 for the work rolls 2 '.
  • roller stub 10' To the work rolls 2 'is screwed on the roll flange 12 via the screw 17 each have a roller stub 10'. Compared to the roller stub 10 off Fig. 3 is this roller stub 10 'a little longer, since the Thrust bearing 8 attacks.
  • a further roll chock 6 is screwed to the roll chocks 5 for the radial support via the screw connections 17 ".
  • the displacement device 18 is attached to the cylinders 19 via the screw 17 '.
  • the rolling device 1 'just described now offers the advantage that it can be offered and delivered on the one hand as a low-cost version without axial roller displacement.
  • Such a version has only bearing cap 16 and spacers 7, as in Fig. 3 are shown on.
  • both work rolls 2 ' are to be equipped with an axial displacement device, then longer work roll ends 10' are screwed to both work rolls.
  • the further roll chocks 6 are screwed to the roll chocks 5 via the screw connections 17 "with the axial bearings 8.
  • the bearing caps 16 are then fastened to these further roll chocks 6 via the screw connections 17 ', as shown in FIG Fig. 4 is shown.
  • the axial guides 14 (only in Fig. 2 shown) in the bending blocks 11 provide for the guidance of the roll chocks 5 in the axial direction.
  • the displacement device 18 consists of a fixed part, which is connected in the present example with the bending block 11 and a movable part, which via a bolt (not shown) with the bearing cap 16 is detachably connected. About the cylinder 19, the movable part of the Displacement device 18 are moved axially and thus also the roll chocks 5, 6 and thereby also the work rolls 2 '.
  • the modular construction of the work rolls 2 'and the roll chocks 5, 6 thus enables a delivery of the basic design of a rolling device with the possibility of later removal with lower additional costs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Rolling Contact Bearings (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Description

Den Gegenstand dieser Erfindung bildet eine Walzvorrichtung mit Arbeitswalzen und gegebenenfalls mit Zwischenwalzen, die mittels Walzeneinbaustücken über Radiallager in einem Walzgerüst gelagert sind, wobei die Durchbiegung der Arbeitswalzen über Biegeblöcke beeinflussbar ist. Den Gegenstand dieser Erfindung bildet auch ein Verfahren zum Umbau, insbesondere zum nachträglichen Umbau, eines Walzgerüstes mit Arbeitswalzen und/oder Zwischenwalzen ohne Axialverschiebungseinrichtung auf ein Walzgerüst mit Axialverschiebungseinrichtung.The subject of this invention is a rolling device with work rolls and optionally with intermediate rolls, which are mounted by means of roll chocks via radial bearings in a roll stand, wherein the deflection of the work rolls can be influenced via bending blocks. The subject of this invention also provides a method for conversion, in particular for retrofitting, a rolling stand with work rolls and / or intermediate rolls without Axialverschiebungseinrichtung on a roll stand with Axialverschiebungseinrichtung.

Bei Walzgerüsten für kaltgewalztes Band ist es Stand der Technik, dass die Arbeitswalzen bzw. die Zwischenwalzen in axialer Richtung (quer zur Bandlaufrichtung) entgegengesetzt zueinander verschoben werden können. Dies wird in Kombination mit einem in axialer Richtung veränderlichen Durchmesser (Schliff) der Walzen als zusätzliches Stellglied zur Beeinflussung der Planheit des Bandes genutzt.In roll stands for cold-rolled strip, it is state of the art that the work rolls or the intermediate rolls in the axial direction (transverse to the strip running direction) can be displaced in opposite directions. This is used in combination with an axially variable diameter (cut) of the rolls as an additional actuator for influencing the flatness of the strip.

Walzenverschiebevorrichtungen werden generell zum Erweitern des Planheitsstellbereiches unter Verwendung von individuellen Walzenschliffen eingesetzt. Dies bringt logistische, betriebswirtschaftliche und qualitative Vorteile.Roller shifters are generally used to widen the flatness range using individual roll cuts. This brings logistical, business and qualitative benefits.

Bei herkömmlichen Walzgerüsten mit Axialverschiebung ist die Verschiebevorrichtung fix in das Walzgerüst integriert. Die Arbeitswalzen weisen dabei einen einteiligen Aufbau auf und sind über Walzeneinbaustücke im Walzgerüst gelagert. Die Walzeneinbaustücke sind ebenfalls einteilig aufgebaut und beinhalten gleichzeitig die Radiallager und die Axiallager für die Arbeitswalzen.In conventional rolling stands with axial displacement, the displacement device is fixedly integrated into the rolling stand. The work rolls have a one-piece construction and are mounted on roll chocks in the rolling stand. The roll chocks are also constructed in one piece and at the same time include the radial bearings and the thrust bearings for the work rolls.

Walzgerüste mit Axialverschiebungsseinrichtungen für die Arbeitswalzen und gegebenenfalls für die Zwischenwalzen weisen einen komplexeren Aufbau auf als Walzgerüste ohne Axialverschiebung und sind daher teurer.Roll stands with axial displacement devices for the work rolls and optionally for the intermediate rolls have a more complex structure than rolling stands without axial displacement and are therefore more expensive.

Die US 2,669,493 offenbart ein Walzgerüst mit einer Vorrichtung zur axialen Positionierung der Walzen.The US 2,669,493 discloses a roll stand with a device for axially positioning the rolls.

Viele Kunden kaufen aus Kostengründen Walzgerüste ohne Axialverschiebung, oft wird jedoch zu einem späteren Zeitpunkt eine Umrüstung auf ein Walzgerüst mit axial verschiebbaren Arbeitswalzen und/oder Zwischenwalzen gewünscht. Dieser Umbau ist bei herkömmlichen Anlagen sehr kostenintensiv, da dafür die Arbeitswalzen, gegebenenfalls auch die Zwischenwalzen und die gesamte Walzenlagerung getauscht werden müssen. Teilweise muss sogar das ganze Gerüst getauscht werden.Many customers buy for cost reasons rolling stands without axial displacement, but often at a later date, a conversion to a rolling mill with axially movable work rolls and / or intermediate rolls is desired. This conversion is very costly in conventional systems, since for the work rolls, possibly also the intermediate rolls and the entire roll storage must be replaced. Sometimes even the whole framework has to be exchanged.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Walzvorrichtung zu offenbaren, die ohne großen Zeit- und Kostenaufwand nachträglich mit einer Axialverschiebung für die Arbeitswalzen ausgerüstet werden kann.The invention is therefore an object of the invention to disclose a rolling device that can be retrofitted with a axial displacement for the work rolls without much time and cost.

Gelöst wird diese Aufgabe durch eine Walzvorrichtung, bei der für eine Axialverschiebung zumindest einer Arbeitswalze oder einer Zwischenwalze ein Walzenstummel an diese Arbeitswalze oder Zwischenwalze anbringbar ist. Vorzugsweise wird dieser Walzenstummel angeschraubt, er kann aber auch über eine Klebeverbindung oder über eine Presspassung befestigt werden. Außerdem ist der Walzenstummel über ein Axiallager in einem weiteren Walzeneinbaustück gelagert, wobei das weitere Walzeneinbaustück mit dem Walzeneinbaustück der axial verschiebbaren Walzen verschraubbar ist. Das Walzeneinbaustück ist über eine Axialführung relativ zum Biegeblock in axialer Richtung verschiebbar.This object is achieved by a rolling device in which for a axial displacement of at least one work roll or an intermediate roll, a roll stub is attached to this work roll or intermediate roll. Preferably, this roller stub is screwed, but it can also be attached via an adhesive connection or via a press fit. In addition, the roller stub is mounted on a thrust bearing in another roll chock, wherein the other roll chock is screwed to the roll chock of the axially displaceable rollers. The roll chock is slidable via an axial guide relative to the bending block in the axial direction.

Die erfindungsgemäße Walzvorrichtung kann somit leicht nachträglich mit einer Axialverschiebeeinrichtung ausgerüstet werden. Durch die Arbeitswalzen bzw. Zwischenwalzen mit anschraubbaren Walzenstummeln und durch die zweiteiligen Walzeneinbaustücke gestaltet sich ein nachträglicher Umbau besonders einfach, da nur wenige Bauteile ausgetauscht werden müssen.The rolling device according to the invention can thus be easily retrofitted with an axial displacement device. Through the work rolls or intermediate rolls with screw-on roll stubs and through the two-piece roll chocks a subsequent conversion designed particularly simple, since only a few components must be replaced.

Wird die Walzvorrichtung ohne Axialverschiebeeinrichtung betrieben, so werden die Walzen mit den daran befestigten Walzenstummeln über eine Axialverriegelung in ihrer Position gesichert. Dabei ist der Lagerdeckel über ein Zwischenstück mit dem dazugehörenden Walzeneinbaustück, in dem nur das Radiallager angeordnet ist, verschraubt.If the rolling device is operated without Axialverschiebeeinrichtung, the rollers are secured with the attached thereto roller stubs via an axial lock in position. In this case, the bearing cap via an intermediate piece with the associated roll chock, in which only the radial bearing is arranged, bolted.

Für einen Umbau auf ein Walzgerüst mit Axialverschiebung werden die Lagerdeckel, die Zwischenstücke und die entsprechenden Walzenstummel abgeschraubt. An die vorhandenen Walzen werden dann entsprechend längere Walzenstummel zur Aufnahme der Axiallagerung geschraubt. Diese Walzenstummel werden über Axiallager in einem weiteren Walzeneinbaustück gelagert, wobei das weitere Walzeneinbaustück mit dem vorhandenen Walzeneinbaustück für die Radiallagerung verschraubt wird. Durch ein axiales Verschieben der Walzeneinbaustücke, beispielweise mittels eines hydraulischen Zylinders, lässt sich dann auch die entsprechende Arbeitswalze axial verschieben.For a conversion to a roll stand with axial displacement, the bearing caps, the spacers and the corresponding roller stubs are unscrewed. At the existing rollers are then screwed correspondingly longer roller stub for receiving the axial bearing. These roller stubs are mounted via thrust bearings in a further roll chock, wherein the other roll chock is bolted to the existing roll chock for the radial bearing. By an axial displacement of the roll chocks, for example by means of a hydraulic cylinder, then the corresponding work roll can then move axially.

Das ganze Lagersystem für die Axiallagerung wird somit für einen Umbau einfach an die vorhandene Walzvorrichtung angeschraubt. Ein Nachrüsten ist mit einem minimalen Zeit- und Kostenaufwand möglich.The entire bearing system for the axial bearing is thus easily screwed to the existing rolling device for a conversion. Retrofitting is possible with a minimum of time and expense.

Vorzugsweise ist an beide Arbeitswalzen ein Walzenstummel anschraubbar. Dadurch können beide Arbeitswalzen auf einfachem Wege nachträglich mit einer Axialverschiebeeinrichtung ausgerüstet werden.Preferably, a roll stub is screwed to both work rolls. As a result, both work rolls can be easily retrofitted with an axial displacement device.

Den Gegenstand dieser Erfindung bildet auch ein Verfahren zum Umbau eines Walzgerüstes mit Arbeitswalzen und gegebenenfalls Zwischenwalzen ohne Axialverschiebung auf ein Walzgerüst mit Axialverschiebeeinrichtung. Das Verfahren ist dadurch gekennzeichnet, dass an zumindest eine Arbeitswalze oder eine Zwischenwalze ein Walzenstummel angebracht - vorzugsweise angeschraubt - wird und dass an ein Walzeneinbaustück dieser Walze ein weiteres Walzeneinbaustück angeschraubt wird. Der Walzenstummel ist dabei über ein Axiallager im weiteren Walzeneinbaustück gelagert und das Walzeneinbaustück ist über eine Axialführung in axialer Richtung verschiebbar, sodass bei einer Axialverschiebung des weiteren Walzeneinbaustückes auch das Walzeneinbaustück und die entsprechende Walze in axialer Richtung verschoben werden.The subject of this invention also provides a method for converting a rolling stand with work rolls and optionally intermediate rolls without axial displacement on a roll stand with Axialverschiebeeinrichtung. The method is characterized in that attached to at least one work roll or an intermediate roll a stub roll - preferably screwed - and that is screwed to a roll chock of this roll another roll chock. The roller stub is mounted on a thrust bearing in another roll chock and the Roll chock is slidable via an axial guide in the axial direction, so that in an axial displacement of the other roll chock and the roll chock and the corresponding roller are moved in the axial direction.

Es ist günstig, wenn beide Arbeitswalzen für eine Axialverschiebung umgebaut werden.It is favorable if both work rolls are converted for an axial displacement.

Die Axialverschiebung der Walze oder der Walzen wird normalerweise über einen Hydraulikzylinder durchgeführt. Es ist aber auch denkbar, dass die Axialverschiebung über einen elektromechanischen Linearantrieb durchgeführt wird. Dadurch kann das aufwändige Hydrauliksystem eingespart und die Energieeffizienz gesteigert werden.The axial displacement of the roller or rollers is normally performed via a hydraulic cylinder. However, it is also conceivable that the axial displacement is performed via an electromechanical linear drive. This can save the complex hydraulic system and increase energy efficiency.

Das Verfahren bieten den Vorteil, dass die bestehenden Walzeneinbaustücke für die Radiallager, die bestehenden Lagerdeckel und die bestehenden Arbeitswalzen ohne Bearbeitung weiterhin verwendet werden können.The process offers the advantage that the existing roll chocks for the radial bearings, the existing bearing caps and the existing work rolls can still be used without machining.

Im Folgenden wird ein Ausführungsbeispiel der Erfindung anhand von Zeichnungen beschrieben. Es zeigen:

  • Fig. 1 eine schematische perspektivische Ansicht einer Walzvorrichtung nach dem Stand der Technik;
  • Fig. 2 eine schematische perspektivische Ansicht der erfindungsgemäßen Walzvorrichtung (die Axialverriegelung bzw. die Axialverschiebeeinrichtung ist nicht dargestellt);
  • Fig. 3 eine schematische perspektivische Ansicht der Walzvorrichtung ohne Axialverschiebeeinrichtung;
  • Fig. 4 eine schematische perspektivische Ansicht der erfindungsgemäßen Walzvorrichtung mit einer Axialverschiebeinrichtung;
In the following an embodiment of the invention will be described with reference to drawings. Show it:
  • Fig. 1 a schematic perspective view of a rolling device according to the prior art;
  • Fig. 2 a schematic perspective view of the rolling device according to the invention (the axial lock or the axial displacement device is not shown);
  • Fig. 3 a schematic perspective view of the rolling device without Axialverschiebeinrichtung;
  • Fig. 4 a schematic perspective view of the rolling device according to the invention with an axial displacement device;

In Figur 1 ist eine herkömmliche Walzvorrichtung 1 nach dem Stand der Technik mit einer Axialverschiebeeinrichtung dargestellt. Die Arbeitswalzen 2 sind einteilig ausgeführt. Sie sind über Radiallager 3 und Axiallager 8, die am Walzenstummel 9 angeordnet sind, in einem einteiligen Arbeitswalzeneinbaustück 4 gelagert. An die Walzeneinbaustücke 4 sind die Lagerdeckel 20 angeschraubt. Die Axialkräfte werden über die Axiallager 8 auf die Arbeitswalzen 2 übertragen.In FIG. 1 1, a conventional rolling device 1 according to the prior art is shown with an axial displacement device. The work rolls 2 are made in one piece. They are mounted on radial bearings 3 and thrust bearing 8, which are arranged on the roller stub 9, in a one-piece work roll chock 4. At the roll chocks 4, the bearing cap 20 are screwed. The axial forces are transmitted via the thrust bearing 8 on the work rolls 2.

Für den Umbau herkömmlicher Walzvorrichtungen ohne Axialverschiebung auf eine Walzvorrichtung mit Axialverschiebung gemäß Fig. 1 mussten bisher mindestens die gesamten Arbeitswalzen und die gesamten Walzeneinbaustücke ausgetauscht werden.For the conversion of conventional rolling devices without axial displacement on a rolling device with axial displacement according to Fig. 1 So far, at least the entire work rolls and the entire roll chocks had to be replaced.

Fig. 2 zeigt die erfindungsgemäße Walzvorrichtung 1', wobei hier zur besseren Darstellung weder eine Axialverriegelung noch eine Axialverschiebeeinrichtung dargestellt sind. Fig. 2 shows the rolling device 1 'according to the invention, wherein neither a Axialverriegelung nor an axial displacement device are shown for better illustration.

Die Arbeitswalzen 2' sind mit Radiallager 3 jeweils in einem Walzeneinbaustück 5 für die Radiallagerung gelagert. Die Walzeneinbaustücke 5 können über die Axialführung 14 relativ zum Biegeblock 11 in axialer Richtung verschoben werden. Über die Biegeblöcke 11 kann die Durchbiegung der Arbeitswalzen 2' beeinflusst werden. An den Walzenenden 12 sind Gewindebohrungen 13 angeordnet, sodass dort ein Walzenstummel (nicht dargestellt) anschraubbar ist.The work rolls 2 'are mounted with radial bearings 3 each in a roll chock 5 for the radial bearing. The roll chocks 5 can be moved via the axial guide 14 relative to the bending block 11 in the axial direction. About the bending blocks 11, the deflection of the work rolls 2 'can be influenced. At the roll ends 12 threaded holes 13 are arranged so that there is a roll stub (not shown) can be screwed.

In Fig. 3 ist die Walzvorrichtung 1' aus Fig. 2 mit Lagerdeckel 16 für die Arbeitswalzen 2' dargestellt. Die Arbeitswalzen 2' sind über Bolzen (nicht dargestellt) in ihrer axialen Position fixiert. Die Lagerdeckel 16 sind über die Verschraubungen 17' mit dem Zwischenstück 7 verschraubt, welches wiederum über die Verschraubungen 17" mit dem jeweiligen Walzeneinbaustück 5 verschraubt ist.In Fig. 3 is the rolling device 1 'from Fig. 2 shown with bearing cap 16 for the work rolls 2 '. The work rolls 2 'are fixed in their axial position by bolts (not shown). The bearing caps 16 are bolted via the screw 17 'with the intermediate piece 7, which in turn is screwed on the screw 17 "with the respective roll chock 5.

An die Walzenflansche 12 sind über die Verschraubungen 17 Walzenstummel 10 angeschraubt. Eine derartige Walzvorrichtung 1' ohne eine Axialverschiebung kann nachträglich einfach auf eine Walzvorrichtung 1' mit Axialverschiebung umgebaut werden.To the roll flanges 12 17 screwed stub 10 are screwed on the screw 17. Such a rolling device 1 'without an axial displacement can be subsequently easily converted to a rolling device 1' with axial displacement.

In Fig. 4 ist die erfindungsgemäße Walzvorrichtung 1' aus Fig. 2 mit einer Axialverschiebeeinrichtung 18 für die Arbeitswalzen 2' dargestellt.In Fig. 4 is the rolling device 1 'according to the invention Fig. 2 shown with an axial displacement device 18 for the work rolls 2 '.

An die Arbeitswalzen 2' ist am Walzenflansch 12 über die Verschraubungen 17 jeweils ein Walzenstummel 10' angeschraubt. Im Vergleich zum Walzenstummel 10 aus Fig. 3 ist dieser Walzenstummel 10' etwas länger, da an ihm das Axiallager 8 angreift. An die Walzeneinbaustücke 5 für die Radiallagerung ist jeweils über die Verschraubungen 17" ein weiteres Walzeneinbaustück 6 angeschraubt. Die Arbeitswalzen 2' sind nun einerseits im Walzeneinbaustück 5 über die Radiallager 3 und andererseits im weiteren Walzeneinbaustück 6 über die Walzenstummel 10' und die Axiallager 8 gelagert.To the work rolls 2 'is screwed on the roll flange 12 via the screw 17 each have a roller stub 10'. Compared to the roller stub 10 off Fig. 3 is this roller stub 10 'a little longer, since the Thrust bearing 8 attacks. A further roll chock 6 is screwed to the roll chocks 5 for the radial support via the screw connections 17 ".The work rolls 2 'are now supported on the one hand in the roll chock 5 via the radial bearings 3 and on the other hand in the further roll chock 6 via the roll stub 10' and the axial bearings 8 ,

Am weiteren Walzeneinbaustück 6 ist über die Verschraubungen 17' die Verschiebeeinrichtung 18 mit den Zylindern 19 befestigt.At the other roll chock 6, the displacement device 18 is attached to the cylinders 19 via the screw 17 '.

Die soeben beschriebene Walzvorrichtung 1' bietet nun den Vorteil, dass sie einerseits als kostengünstige Version ohne axialer Walzenverschiebung angeboten und ausgeliefert werden kann. Eine derartige Version weist lediglich Lagerdeckel 16 und Zwischenstücke 7, wie sie in Fig. 3 dargestellt sind, auf.The rolling device 1 'just described now offers the advantage that it can be offered and delivered on the one hand as a low-cost version without axial roller displacement. Such a version has only bearing cap 16 and spacers 7, as in Fig. 3 are shown on.

Wenn nun ein Kunde einen nachträglichen Umbau auf eine Walzvorrichtung mit einer Axialverschiebeeinrichtung wünscht, so kann dies auf recht einfache Art und Weise geschehen. Im Wesentlichen werden die kurzen Walzenstummel 10 (Stummel ohne Axiallager) von den Arbeitswalzen 2' abgeschraubt, ebenso die Lagerdeckel 16 und die Zwischenstücke 7. Man erhält dann eine Walzvorrichtung 1' wie sie in Fig. 2 dargstellt ist.Now, if a customer wishes a subsequent conversion to a rolling device with a Axialverschiebeeinrichtung, this can be done in a fairly simple manner. Essentially, the short roll stub 10 (stub without thrust bearing) are unscrewed from the work rolls 2 ', as are the bearing caps 16 and the intermediate pieces 7. A rolling device 1' as in FIG Fig. 2 is dargstellt.

Sollen beide Arbeitswalzen 2' mit einer Axialverschiebeeinrichtung ausgestattet werden, dann werden an beide Arbeitswalzen jeweils längere Walzenstummel 10' angeschraubt. An die Walzeneinbaustücke 5 werden über die Verschraubungen 17" die weiteren Walzeneinbaustücke 6 mit den Axiallagern 8 angeschraubt. An diese weiteren Walzeneinbaustücke 6 werden dann über die Verschraubungen 17' die Lagerdeckel 16 befestigt, wie dies in Fig. 4 dargestellt ist. Die Axialführungen 14 (nur in Fig. 2 dargestellt) in den Biegeblöcken 11 sorgen für die Führung der Walzeneinbaustücke 5 in axialer Richtung. Die Verschiebeeinrichtung 18 besteht aus einem feststehenden Teil, der im vorliegenden Beispiel mit dem Biegeblock 11 verbunden ist und aus einem beweglichen Teil, der über einen Bolzen (nicht dargestellt) mit dem Lagerdeckel 16 lösbar verbunden ist. Über den Zylinder 19 kann der bewegliche Teil der Verschiebeeinrichtung 18 axial verschoben werden und somit auch die Walzeneinbaustücke 5, 6 und dadurch auch die Arbeitswalzen 2'.If both work rolls 2 'are to be equipped with an axial displacement device, then longer work roll ends 10' are screwed to both work rolls. The further roll chocks 6 are screwed to the roll chocks 5 via the screw connections 17 "with the axial bearings 8. The bearing caps 16 are then fastened to these further roll chocks 6 via the screw connections 17 ', as shown in FIG Fig. 4 is shown. The axial guides 14 (only in Fig. 2 shown) in the bending blocks 11 provide for the guidance of the roll chocks 5 in the axial direction. The displacement device 18 consists of a fixed part, which is connected in the present example with the bending block 11 and a movable part, which via a bolt (not shown) with the bearing cap 16 is detachably connected. About the cylinder 19, the movable part of the Displacement device 18 are moved axially and thus also the roll chocks 5, 6 and thereby also the work rolls 2 '.

Der modulare Aufbau der Arbeitswalzen 2' und der Walzeneinbaustücke 5, 6 ermöglicht somit eine Lieferung der Grundausführung einer Walzvorrichtung mit der Möglichkeit des späteren Ausbaus mit geringeren Zusatzkosten.The modular construction of the work rolls 2 'and the roll chocks 5, 6 thus enables a delivery of the basic design of a rolling device with the possibility of later removal with lower additional costs.

Eine Nachrüstung von Zwischenwalzen mit einer Axialverschiebeeinrichtung erfolgt in analoger Art und Weise.A retrofitting of intermediate rolls with an axial displacement device takes place in an analogous manner.

Die Nachrüstung mit einer Axialverschiebeeinrichtung ist mit geringem Aufwand und ohne große konstruktive Änderungen möglich. Dieses "Baukastensystem" reduziert außerdem die Teilevielfalt und fördert die Standardisierung.Retrofitting with an axial displacement device is possible with little effort and without major design changes. This "modular system" also reduces the variety of parts and promotes standardization.

Claims (9)

  1. Rolling device (1') with work rolls (2'), and intermediate rolls if necessary, which are supported in a rolling mill stand via radial bearings(3) by means of roll chocks (5) and where deflection of the work rolls (2) can be influenced by means of bending blocks (11), where a roller shaft (10') can be mounted at the respective work roll (2') or intermediate roll for axial displacement of at least one work roll (2') or intermediate roll and where the roller shaft (10') is supported in another roll chock (6) via an axial bearing (8), characterized in that the other roll chock (6) can be screwed to the roll chock (5) of the rolls that can be moved in axial direction and that the roll chock (5) can be moved in axial direction relative to the roll chock (11) on an axial guide (14).
  2. Rolling device according to Claim 1, characterized in that the roller shaft (10'), which can be mounted at the work roll (2) or the intermediate roll via a detachable connection, is preferably screwed on.
  3. Rolling device according to Claim 1 or 2, characterized in that a roller shaft (10') can be screwed to two work rolls (2').
  4. Process for rebuilding a rolling mill stand with work rolls (2') and, if necessary, intermediate rolls without axial displacement to obtain a rolling mill stand with axially displaceable work rolls (2') or intermediate rolls, characterized in that a roller shaft (10') is attached to at least one work roll (2') or one intermediate roll and that another roll chock (6) is screwed to one roll chock (5) of this work roll (2') or intermediate roll, where the roller shaft (10') is supported in the roll chock (6) via an axial bearing (8) and where the roll chock (5) can be moved in axial direction on an axial guide (14), such that the roll chock (5) and the work roll (2') and/or the intermediate roll can be moved in axial direction when the other roll chock (6) is moved in axial direction.
  5. Process according to Claim 4, characterized in that two work rolls (2') are rebuilt for axial displacement.
  6. Process according to Claim 4 or 5, characterized in that axial displacement is performed via an electromechanical linear drive.
  7. Process according to one of Claims 4 to 6, characterized in that the existing roll chocks (5) are used further for the radial bearings (3) without any machining in the rebuilt version.
  8. Process according to one of Claims 4 to 7, characterized in that existing bearing covers (16) are used further without any machining in the rebuilt version.
  9. Process according to one of Claims 4 to 8, characterized in that the existing work rolls (2') are used further without any machining in the rebuilt version.
EP11748543.3A 2010-07-27 2011-07-21 Rolling stand with roll bearing Not-in-force EP2598262B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT12572010A AT509455B1 (en) 2010-07-27 2010-07-27 ROLLING RACK WITH ROLLER BEARING
PCT/AT2011/000309 WO2012012815A1 (en) 2010-07-27 2011-07-21 Rolling stand with roll bearing

Publications (2)

Publication Number Publication Date
EP2598262A1 EP2598262A1 (en) 2013-06-05
EP2598262B1 true EP2598262B1 (en) 2014-12-03

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ID=44510594

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Application Number Title Priority Date Filing Date
EP11748543.3A Not-in-force EP2598262B1 (en) 2010-07-27 2011-07-21 Rolling stand with roll bearing

Country Status (5)

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EP (1) EP2598262B1 (en)
CN (1) CN103037993B (en)
AT (1) AT509455B1 (en)
RU (1) RU2542170C2 (en)
WO (1) WO2012012815A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20154811A1 (en) * 2015-10-16 2017-04-16 Danieli Off Mecc LAMINATION CAGE FOR METAL PRODUCTS
DE102017220560A1 (en) * 2017-05-03 2018-11-08 Sms Group Gmbh Roll stand for rolling a metallic material
CN108856292B (en) * 2018-07-20 2023-12-19 中冶华天南京工程技术有限公司 Strip mill roller system structure and assembly method thereof
DE102019200005A1 (en) * 2019-01-02 2020-07-02 Sms Group Gmbh Rolling device

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Publication number Priority date Publication date Assignee Title
US2178628A (en) * 1934-03-08 1939-11-07 Mackintosh Hemphill Company Thrust bearing for rolling mills
US2669493A (en) * 1950-01-12 1954-02-16 United States Steel Corp Thrust bearing for rolling mill rolls and the like
DE1151236B (en) * 1958-01-21 1963-07-11 Beteiligungs & Patentverw Gmbh Axial bearing for rollers
DE2323768C2 (en) * 1973-05-11 1975-05-22 Th. Kieserling & Albrecht, 5650 Solingen Roll stand with exchangeably arranged rolls
DE3628733A1 (en) * 1986-08-23 1988-02-25 Schloemann Siemag Ag DEVICE FOR AXIAL POSITIONING OF THE ROLLS OF ROLLING MILLS FOR THE PRODUCTION OF PROFILE STEEL
DE3638330A1 (en) * 1986-11-10 1988-05-19 Schloemann Siemag Ag ROLLING DEVICES WITH A DEVICE FOR THE AXIAL SHIFTING OF ADJUSTABLE ROLLERS
DE3718646A1 (en) * 1987-06-04 1988-12-22 Schloemann Siemag Ag DEVICE FOR THE AXIAL SHIFTING OF TURNING ROLLING ROLLERS
SU1653880A1 (en) * 1989-06-08 1991-06-07 Предприятие П/Я В-2869 Device for axial adjustment of a roll
FR2710567B1 (en) * 1993-09-28 1995-12-22 Clecim Sa Axial displacement rolling mill.
DE19816602C1 (en) * 1998-04-15 1999-05-27 Schloemann Siemag Ag Roller frame for roll forming materials
DE10150690A1 (en) * 2001-10-17 2003-04-30 Sms Demag Ag rolling device
ITUD20040055A1 (en) * 2004-03-29 2004-06-29 Pittini Impianti Srl COLD ROLLING MACHINE FOR WIRES AND BARS
CN200988050Y (en) * 2006-12-21 2007-12-12 中国第一重型机械集团公司 Novel six rolling mill working roller and middle roller bearing seat
CN101185942B (en) * 2007-12-25 2010-06-02 二重集团（德阳）重型装备股份有限公司 Roller mill roll bending and shifting device

Also Published As

Publication number Publication date
RU2013104042A (en) 2014-09-10
AT509455A4 (en) 2011-09-15
EP2598262A1 (en) 2013-06-05
RU2542170C2 (en) 2015-02-20
WO2012012815A1 (en) 2012-02-02
CN103037993A (en) 2013-04-10
AT509455B1 (en) 2011-09-15
CN103037993B (en) 2015-07-15

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