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EP0354170A2 - Device for axially guiding the cylinders of rolling stands - Google Patents

Device for axially guiding the cylinders of rolling stands Download PDF

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Publication number
EP0354170A2
EP0354170A2 EP89730180A EP89730180A EP0354170A2 EP 0354170 A2 EP0354170 A2 EP 0354170A2 EP 89730180 A EP89730180 A EP 89730180A EP 89730180 A EP89730180 A EP 89730180A EP 0354170 A2 EP0354170 A2 EP 0354170A2
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EP
European Patent Office
Prior art keywords
axial
roll
rolls
supported
chocks
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Granted
Application number
EP89730180A
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German (de)
French (fr)
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EP0354170A3 (en
EP0354170B1 (en
Inventor
Wilhelm Ing. Schwerdt (Grad)
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Vodafone GmbH
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Mannesmann AG
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B31/00Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16Adjusting or positioning rolls
    • B21B31/18Adjusting or positioning rolls by moving rolls axially
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel

Definitions

  • the invention relates to a device for the axial guidance of the rolls of roll stands for the production of section steel.
  • a device for the axial guidance of the rolls of roll stands for the production of section steel For the rolling of profiles, in particular non-symmetrical profiles in caliber rolls, it is necessary to ensure that a certain relative axial position of the opposing rolls is maintained and, if necessary, to make a correction by changing the axial position of the rolls relative to one another.
  • axial forces arise in the rolling caliber, which negatively influence the accuracy of the rolling and the straight running of the rolling stock.
  • the object of the present invention is, using the proven rigid conventional system, to carry out an axial guidance of the rolls in which the axial forces occurring in the roll calibres can be compensated directly on the rolls.
  • the invention undertakes direct axial force compensation where it arises, namely on the roller itself, without having to give up the rigid conventional system. All that is required is to provide at least two bearings that absorb axial forces on each roller, one of which has to transmit only relatively small axial forces in combination with a radial bearing.
  • An economical solution can be, for example, a four-row tapered roller bearing that is paired with a strong axial bearing.
  • rollers are mounted in displaceable chocks, the axial forces causing a displacement being measured on the chocks or in the vicinity thereof.
  • a hydraulic unit then acts on the strong axial bearing provided on the journal of the rollers, with which the acting axial force is opposed by an equally large, oppositely directed compensation force.
  • the axial bearings on the roll journals of a roll stand side are connected to a cross-piece which extends transversely to the roll axes and on the two free ends of which double-acting piston-cylinder units are articulated which are supported on the roller stand.
  • duo roll stands it is sufficient to introduce a pair of forces into the rolls, for which the heavy crossbar is sufficient.
  • the components belonging to the traverse, including the thrust bearing only need to be dimensioned according to their strength and not according to their deformation.
  • the cylinder supporting the crossmember against the roll stand can be acted upon by a rapidly acting pressure control with cylinder forces which can be changed in size and direction, so that the external forces which act on the rolls in the axial direction can be traced back to zero.
  • This solution ensures that the forces that the conventional axial guide system has to absorb remain very low. At that time, this low level of force led to very small deformations in the entire axial guide system of the rollers.
  • each horizontal roller is then provided with an independent system for balancing the forces; it is therefore possible to dispense with the traverse described above for connecting the adjacent rollers.
  • the rolls of the set of rolls of the profiled rolls are designated by 1, which are mounted in chocks 2 in the roll stand 3 and, as indicated at 4, can be adjusted horizontally by means of spindles.
  • the rollers are loaded in the axial direction by the axial forces F A , which act on the roller bearings in the direction of the arrow.
  • Figure 2 also shows schematically the storage of the rollers in the chocks 2.
  • the roller journals 6 run in the chocks 2, in which they are rotatably mounted in tapered roller bearings 7.
  • the tapered roller bearings 7 are also able to absorb axial force components from the rollers.
  • the chocks 2 are displaceable by means of adjusting devices in the form of piston-cylinder units 8 and 9 by small displacement paths in the axial direction, for which purpose the linear movement of the piston-cylinder units 8 and 9 via levers 10 and 11, which are articulated at 12 on the roller stand are diverted, the levers 10 and 11 each acting in different directions of movement on a collar projection 13 of the guide bush 5.
  • the piston-cylinder units 14 are arranged at the free ends of a crossmember 5, which at 15 and 16 is connected by bolts and joints to the heavy axial bearing 17 (FIG. 2), which rests on each elongated roller journal 6a the roller 1 is seated.
  • the piston-cylinder units 14 forces can be transmitted to the axial bearings 17 via the crossmember 5, but their size in the opposite direction corresponds to the axial forces that arise in the calibres when the rolling stock is rolled. It is thus possible to reduce the external forces acting on the rollers in the axial direction towards zero, with compensation taking place directly where the forces arise, namely on the roller. Deformations of the inner parts of the chocks including the bearing deformations are eliminated.
  • the system is extremely stiff due to the use of conventional mechanical components and particularly precise due to the reduction in the axial forces acting on the actual displacement device. This enables optimal axial guidance of the rolls during the rolling process, which ensures the quality of the rolled product.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)

Abstract

Die Erfindung betrifft eine Vorrichtung zur Axialführung der Walzen von Walzgerüsten zur Herstellung von Profil­stahl. Um zu erreichen, daß unter Verwendung des be­währten steifen konventionellen Systems eine Axialführung der Walzen erfolgt, bei der eine Kompensation der in den Walzkalibern auftretenden Axialkräfte unmittelbar an den Walzen vorgenommen werden kann, wird vorgeschlagen, daß die Walzenzapfen (6) der Walzen (1) radial und axial in Einbaustücken (2) drehbar gelagert sind, die mittels sich an den Walzenständen (3) abstützenden Anstellvorrichtungen (8,9) in denselben axial verschiebbar sind, daß an den Einbaustücken (2) und/oder Anstellvorrichtungen (8,9) Einrichtungen zum Erfassen der auf die Walzen (1) wir­kenden Axialkräfte vorgesehen sind, daß auf mindestens einem Zapfen (6) jeder Walze (1) ein Axiallager (17) an­geordnet ist, das mittels einer sich gegen den Walzenständer (3) abstützenden Hydraulikeinheit (14) mit einer in Achs­richtung wirkenden Kraft beaufschlagbar ist und daß die Einrichtung zum Erfassen der auf die Walzen (1) wirkenden Axialkraft über ein Steuergerät mit der auf die Axial­lager (17) wirkenden Hydraulikeinheit (14) in dem Sinn verbunden ist, daß zu der jeweiligen Axialkraft eine gleich­große entgegengesetzt gerichtete Kraft auf das Axiallager (17) aufbringbar ist.

Figure imgaf001
The invention relates to a device for the axial guidance of the rolls of roll stands for the production of section steel. In order to ensure that the tried and tested rigid conventional system is used to axially guide the rolls, in which the axial forces occurring in the roll calibres can be compensated directly on the rolls, it is proposed that the roll neck (6) of the rolls (1) are rotatably supported radially and axially in chocks (2) which are axially displaceable in the same by means of adjusting devices (8, 9) supported on the roller stands (3) that on the chocks (2) and / or adjusting devices (8,9) Means for detecting the axial forces acting on the rollers (1) are provided that an axial bearing (17) is arranged on at least one pin (6) of each roller (1), which is supported by a hydraulic unit (14) which is supported against the roller stand (3) ) can be acted upon with a force acting in the axial direction and that the device for detecting the axial force acting on the rollers (1) with a control unit the hydraulic unit (14) acting on the thrust bearing (17) is connected in the sense that an opposing force of the same magnitude can be applied to the thrust bearing (17) in the opposite direction to the respective axial force.
Figure imgaf001

Description

Die Erfindung betrifft eine Vorrichtung zur Axialführung der Walzen von Walzgerüsten zur Herstellung von Profilstahl. Für das Walzen von Profilen, insbesondere nicht symmetrischen Profilen in Kaliberwalzen ist es erforderlich, die Einhaltung einer bestimmten relativen Axiallage der sich gegenüberliegenden Walzen sicherzustellen und gegebenenfalls durch Veränderung der Axiallage der Walzen zueinander eine Korrektur vorzunehmen. Besonders bei nicht symmetrischen Profilen entstehen Axialkräfte im Walzkaliber, die die Genauigkeit der Walzung und den Geradeauslauf des Walzgutes negativ beeinflussen. Gleiches gilt für die Horizontalwalzen eines Universalwalzgerüstes, da durch Axialverschiebung der Horizontalwalzen aufgrund unsymmetrischer Walzkräfte die Toleranz der Flanschabmessungen von Parallelflanschträgern nachteilig beeinflußt werden kann.The invention relates to a device for the axial guidance of the rolls of roll stands for the production of section steel. For the rolling of profiles, in particular non-symmetrical profiles in caliber rolls, it is necessary to ensure that a certain relative axial position of the opposing rolls is maintained and, if necessary, to make a correction by changing the axial position of the rolls relative to one another. In the case of non-symmetrical profiles, axial forces arise in the rolling caliber, which negatively influence the accuracy of the rolling and the straight running of the rolling stock. The same applies to the horizontal rolls of a universal rolling stand, since the tolerance of the flange dimensions of parallel flange carriers can be adversely affected by axial displacement of the horizontal rolls due to asymmetrical rolling forces.

Es ist bereits versucht worden, die Axialverschiebung der Walzen aufgrund hoher auftretender Axialkräfte dadurch zu unterbinden, daß an den Walzen Anlaufbunde vorgesehen wurden, die ein Axialverschieben der Walzen verhindern. Das führt an den Anlaufbunden zu hohem Verschleiß und damit zu beträchtlichen Walzenkosten.Attempts have already been made to prevent the axial displacement of the rollers due to the high axial forces which occur by providing thrust collars on the rollers which prevent axial displacement of the rollers. This leads to high wear on the start-up coils and thus to considerable rolling costs.

Zur Vermeidung dessen ist bereits vorgeschlagen worden (DE 36 28 733 A1) auf Anlaufbunde zu verzichten und die Axialführung der Walzen hydraulisch vorzunehmen. Diese Führung muß extrem steif ausgeführt sein und es ist erforderlich, eine hydraulische Positionsregelung vorzusehen, die mit einer genauen Istwerterfassung für die Walzenverschiebung unmittelbar an den Walzen versehen sein muß, wenn die Verformung der Innenteile der Einbaustücke einschließlich der Lagerverformungen mitberücksichtigt werden soll. Dies erscheint bei der bekannter Lösung aufgrund der Umgebungsbedingungen nur unzureichend lösbar zu sein, so daß nach einem anderen Weg zur Lösung des Problemes gesucht wurde.To avoid this, it has already been proposed (DE 36 28 733 A1) to dispense with starting collars and to perform the axial guidance of the rollers hydraulically. This guide must be extremely rigid and it is necessary to provide a hydraulic position control, which must be provided with an accurate actual value detection for the roll displacement directly on the rolls if the deformation of the inner parts of the chocks including the bearing deformations is to be taken into account. In the known solution, this appears to be insufficiently solvable due to the ambient conditions, so that another way to solve the problem was sought.

Aufgabe der vorliegenden Erfindung ist es, unter Verwendung des bewährten steifen konventionellen Systems eine Axialführung der Walzen vorzunehmen, bei der eine kompensation der in den Walzkalibern auftretenden Axialkräfte unmittelbar an den Walzen vorgenommen werden kann.The object of the present invention is, using the proven rigid conventional system, to carry out an axial guidance of the rolls in which the axial forces occurring in the roll calibres can be compensated directly on the rolls.

Zur Lösung der Aufgabe wird erfindungsgemäß die Kombination der im Patentanspruch 1 aufgeführten Merkmale vorgeschlagen.To achieve the object, the combination of the features listed in claim 1 is proposed according to the invention.

Im Gegensatz zum beschriebenen Stand der Technik wird bei der Erfindung eine direkte Axialkraftkompensation dort vorgenommen, wo sie entsteht, nämlich an der Walze selbst, ohne dabei das steife konventionelle System aufgeben zu müssen. Dazu ist es lediglich erforderlich, auf jeder Walze mindestens zwei Axialkräfte aufnehmende Lager vorzusehen, von denen das eine in Kombination mit einem Radiallager nur relativ kleine Axialkräfte zu übertragen hat. Eine wirtschaftliche Lösung kann dabei beispielsweise ein vier-reihiges kegelrollenlager darstellen, das mit einem starken Axiallager gepaart ist.In contrast to the described prior art, the invention undertakes direct axial force compensation where it arises, namely on the roller itself, without having to give up the rigid conventional system. All that is required is to provide at least two bearings that absorb axial forces on each roller, one of which has to transmit only relatively small axial forces in combination with a radial bearing. An economical solution can be, for example, a four-row tapered roller bearing that is paired with a strong axial bearing.

In herkömmlicher Weise sind die Walzen in verschiebbaren Einbaustücken gelagert, wobei die eine Verschiebung bewirkenden Axialkräfte an den Einbaustücken oder in deren Nähe gemessen wird. An dem auf dem Zapfen der Walzen vorgesehenen kräftigen Axiallager greift dann eine Hydraulikeinheit an, mit der der wirkenden Axialkraft eine gleichgroße entgegengesetzt gerichtete Kompensationskraft entgegengesetzt wird.In a conventional manner, the rollers are mounted in displaceable chocks, the axial forces causing a displacement being measured on the chocks or in the vicinity thereof. A hydraulic unit then acts on the strong axial bearing provided on the journal of the rollers, with which the acting axial force is opposed by an equally large, oppositely directed compensation force.

Nach einem weiteren Merkmale der Erfindung ist zur Anwendung an einem Duo-Walzgerüst vorgesehen, daß die Axiallager auf den Walzenzapfen einer Walzgerüstseite mit einer sich quer zu den Walzenachsen erstreckenden Traverse verbunden sind, an deren beiden freien Enden doppelt wirkende Kolben-Zylinder-Einheiten angelenkt sind, die sich am Walzenständer abstützen.According to a further feature of the invention, it is provided for use on a duo roll stand that the axial bearings on the roll journals of a roll stand side are connected to a cross-piece which extends transversely to the roll axes and on the two free ends of which double-acting piston-cylinder units are articulated which are supported on the roller stand.

Bei Duo-Walzgerüsten genügt die Einleitung eines Kräftepaares in die Walzen, wozu die schwere Traverse ausreicht. Da es sich um einen reinen Kräfteausgleich handelt, brauchen die zur Traverse gehörenden Bauteile einschließlich des Axiallagers nur nach Festigkeit und nicht nach der Verformung dimensioniert zu werden.With duo roll stands, it is sufficient to introduce a pair of forces into the rolls, for which the heavy crossbar is sufficient. As it is a pure balancing of forces, the components belonging to the traverse, including the thrust bearing, only need to be dimensioned according to their strength and not according to their deformation.

Die die Traverse gegen den Walzenständer abstützenden Zylinder können durch einen schnell wirkende Druckregelung mit in Größe und Richtung veränderbaren Zylinderkräften beaufschlagt werden, so daß die äußeren Kräfte, die in axialer Richtung aus dem Kaliber auf die Walzen wirken, gegen Null zurückführbar sind. Durch diese Lösung wird gewährleistet, daß die Kräfte, die das herkömmliche axiale Führungssystem aufzunehmen hat, sehr gering bleiben. Dieses niedrige kraftniveau führt seinerzeit zu sehr kleinen Verformungen im gesamten axialen Führungssystem der Walzen.The cylinder supporting the crossmember against the roll stand can be acted upon by a rapidly acting pressure control with cylinder forces which can be changed in size and direction, so that the external forces which act on the rolls in the axial direction can be traced back to zero. This solution ensures that the forces that the conventional axial guide system has to absorb remain very low. At that time, this low level of force led to very small deformations in the entire axial guide system of the rollers.

Die Anwendung der Erfindung bei einem Universal-Trägergerüst ist gleichsam dadurch möglich, daß dann jede Horizontalwalze mit einem unabhängigen System zum Ausgleich der Kräfte versehen ist; also auf die vorstehend beschriebene Traverse zur Verbindung der benachbarten Walzen verzichtet werden kann.The application of the invention to a universal support frame is possible, as it were, in that each horizontal roller is then provided with an independent system for balancing the forces; it is therefore possible to dispense with the traverse described above for connecting the adjacent rollers.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend beschrieben. Es zeigt:

  • Fig. 1 eine schematische Ansicht eines Duo-Walzensatzes eines Walzgerüstes zur Herstellung von Profilstahl und
  • Fig. 2 die erfindungsgemäße Einrichtung zum Kraftausgleich der Axialkräfte.
An embodiment of the invention is shown in the drawing and is described below. It shows:
  • Fig. 1 is a schematic view of a duo-roll set of a roll stand for the production of section steel and
  • Fig. 2 shows the device according to the invention for balancing the axial forces.

In Figur 1 sind die Walzen des Walzensatzes der profilierten (nicht dargestellten) Walzen mit 1 bezeichnet, die in Einbaustücken 2 im Walzenständer 3 gelagert sind und über, wie bei 4 angedeutet, Spindeln horizontal anstellbar sind. Während des Walzprozesses werden die Walzen in Axialrichtung durch die Axialkräfte FA belastet, die in Pfeilrichtung auf die Walzenlager wirken.In FIG. 1, the rolls of the set of rolls of the profiled rolls (not shown) are designated by 1, which are mounted in chocks 2 in the roll stand 3 and, as indicated at 4, can be adjusted horizontally by means of spindles. During the rolling process, the rollers are loaded in the axial direction by the axial forces F A , which act on the roller bearings in the direction of the arrow.

Figur 2 zeigt ebenfalls schematisch die Lagerung der Walzen in den Einbaustücken 2. Wie dargestellt, laufen die Walzenzapfen 6 in den Einbaustücken 2, in denen sie in kegelrollenlagern 7 drehbar gelagert sind. Die kegelrollenlager 7 sind in der Lage, auch Axialkraftanteile aus den Walzen aufzunehmen. Die Einbaustücke 2 sind mit Hilfe von Anstellvorrichtungen in Form von kolben-Zylinder-Einheien 8 und 9 um kleine Verschiebewege in Achsrichtung verschiebbar, wozu die Linearbewegung der kolben-Zylinder-Einheiten 8 und 9 über Hebel 10 und 11, die bei 12 am Walzenständer angelenkt sind, umgeleitet wird, wobei die Hebel 10 und 11 jeweils in unterschiedlichen Bewegungsrichtungen auf einen Bundvorsprung 13 der Führungsbuchse 5 wirken.Figure 2 also shows schematically the storage of the rollers in the chocks 2. As shown, the roller journals 6 run in the chocks 2, in which they are rotatably mounted in tapered roller bearings 7. The tapered roller bearings 7 are also able to absorb axial force components from the rollers. The chocks 2 are displaceable by means of adjusting devices in the form of piston-cylinder units 8 and 9 by small displacement paths in the axial direction, for which purpose the linear movement of the piston-cylinder units 8 and 9 via levers 10 and 11, which are articulated at 12 on the roller stand are diverted, the levers 10 and 11 each acting in different directions of movement on a collar projection 13 of the guide bush 5.

Mit Hilfe einer am Einbaustück 2 oder an den Kolben-Zylinder-Einheiten 8 und 9 vorgesehenen Meßeinrichtung, die mittels Dehnungsmeßstreifen, Kraftmeßdosen und/oder Druckveränderungen in den Hydraulikzylindern funktionieren kann, werden die aus den Kalibern resultierenden Axialkräfte erkannt und gemessen und in einem Steuersystem in eine hydraulische Kraft umgesetzt, mit der die doppelt beaufschlagbaren Kolben-Zylinder-Einheiten 14 der erfindungsgemäßen Einrichtung beaufschlagt werden.With the aid of a measuring device provided on the chock 2 or on the piston-cylinder units 8 and 9, which can function by means of strain gauges, load cells and / or pressure changes in the hydraulic cylinders, the axial forces resulting from the calibres are recognized and measured and in a control system in implemented a hydraulic force with which the double-acting piston-cylinder units 14 of the device according to the invention are applied.

Wie aus Figur 1 ersichtlich, sind die Kolben-Zylinder-Einheiten 14 an den freien Enden einer Traverse 5 angeordnet, die bei 15 und 16 über Bolzen und Gelenke mit dem schweren Axiallager 17 (Figur 2) verbunden ist, das auf jedem verlängerten Walzenzapfen 6a der Walzen 1 aufsitzt. Durch Beaufschlagung der Kolben-Zylinder-Einheiten 14 lassen sich somit über die Traverse 5 Kräfte auf die Axiallager 17 übertragen, die in ihrer Größe jedoch in entgegengesetzter Richtung, den in den Kalibern entstehenden Axialkräften beim Walzen des Walzgutes entsprechen. Somit ist es möglich, die in axialer Richtung auf die Walzen wirkenden äußeren Kräfte gegen Null zurückzuführen, wobei eine Kompensation unmittelbar dort erfolgt, wo die Kräfte entstehen, nämlich an der Walze. Verformungen der Innenteile der Einbaustücke einschließlich der Lagerverformungen werden dabei ausgeschaltet. Das System ist, wegen der Verwendung herkömmlicher mechanischer Bauteile äußerst steif und durch die Reduzierung der an der eigentlichen Verschiebeeinrichtung wirkenden Axialkräfte besonders exakt. Auf diese Weise wird eine optimale Axialführung der Walzen während des Walzprozesses ermöglicht, durch die die Qualität des Walzproduktes gewährleistet ist.As can be seen from FIG. 1, the piston-cylinder units 14 are arranged at the free ends of a crossmember 5, which at 15 and 16 is connected by bolts and joints to the heavy axial bearing 17 (FIG. 2), which rests on each elongated roller journal 6a the roller 1 is seated. By acting on the piston-cylinder units 14, forces can be transmitted to the axial bearings 17 via the crossmember 5, but their size in the opposite direction corresponds to the axial forces that arise in the calibres when the rolling stock is rolled. It is thus possible to reduce the external forces acting on the rollers in the axial direction towards zero, with compensation taking place directly where the forces arise, namely on the roller. Deformations of the inner parts of the chocks including the bearing deformations are eliminated. The system is extremely stiff due to the use of conventional mechanical components and particularly precise due to the reduction in the axial forces acting on the actual displacement device. This enables optimal axial guidance of the rolls during the rolling process, which ensures the quality of the rolled product.

Claims (1)

Vorrichtung zur Axialführung der Walzen von Walzgerüsten zur Herstellung von Profilstahl, bei der die Walzenzapfen der Walzen radial und axial in Einbaustücken drehbar gelagert sind, die mittels sich an den Walzenständer abstützender Anstellvorrichtungen in denselben axial verschiebbar sind, wobei auf mindestens einem Zapfen jeder Walze ein Axiallager angeordnet ist, das mittels sich einer gegen den Walzenständer abstützenden Hydraulikeinheit mit einer in Achsrichtung wirkenden Kraft beaufschlagbar ist,
dadurch gekennzeichnet,
daß die Axiallager (17) auf den Walzenzapfen (6) einer Walzgerüstseite mit einer sich quer zu den Walzenachsen erstreckenden Traverse (5) verbunden sind, an deren beiden freien Enden doppelt beaufschlagbare kolben-Zylinder-Einheiten (14) angelenkt sind, die sich unmittelbar am Walzenständer (3) abstützen und über ein Steuergerät mit einer an den Einbaustücken (2) und/oder Anstellvorrichtungen (8, 9) angeordneten Einrichtung zum Erfassen der auf die Walzen (1) wirknden Axialkraft in Verbindung stehen.
Device for the axial guidance of the rolls of roll stands for the production of section steel, in which the roll journals of the rolls are rotatably supported radially and axially in chocks which are axially displaceable in the same by means of adjusting devices supported on the roll stand, with an axial bearing on at least one journal of each roll is arranged which can be acted upon by a force acting in the axial direction by means of a hydraulic unit which is supported against the roll stand,
characterized,
that the axial bearings (17) on the roll neck (6) of a roll stand side are connected to a cross-piece (5) extending transversely to the roll axes, on the two free ends of which double-acting piston-cylinder units (14) are articulated, which are supported directly on the roller stand (3) and are connected via a control unit to a device arranged on the chocks (2) and / or adjusting devices (8, 9) for detecting the axial force acting on the rollers (1).
EP89730180A 1988-08-05 1989-08-02 Device for axially guiding the cylinders of rolling stands Expired - Lifetime EP0354170B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3827018 1988-08-05
DE3827018A DE3827018A1 (en) 1988-08-05 1988-08-05 DEVICE FOR THE AXIAL GUIDE OF THE ROLLS OF WHEEL RODS FOR THE PRODUCTION OF PROFILE STEEL

Publications (3)

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EP0354170A2 true EP0354170A2 (en) 1990-02-07
EP0354170A3 EP0354170A3 (en) 1990-11-22
EP0354170B1 EP0354170B1 (en) 1992-09-23

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EP89730180A Expired - Lifetime EP0354170B1 (en) 1988-08-05 1989-08-02 Device for axially guiding the cylinders of rolling stands

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EP (1) EP0354170B1 (en)
JP (1) JP2651939B2 (en)
DE (2) DE3827018A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
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KR20030013291A (en) * 2001-08-02 2003-02-14 미츠비시 쥬고교 가부시키가이샤 Fluid pressure cylinder and rolling mill
WO2008110243A1 (en) * 2007-03-15 2008-09-18 Sms Siemag Ag Roller device
CN104209330A (en) * 2014-08-14 2014-12-17 湖州倍格曼新材料有限公司 Forming device for producing strips

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE551021C (en) * 1932-05-25 Anton Schoepf Dipl Ing Device for caliber drag mills for adjusting the drag rollers in the axial direction
IT941182B (en) * 1970-11-18 1973-03-01 Nippon Kokan Kk COLD ROLLING APPARATUS AND ITS WORKING METHOD
US4203310A (en) * 1978-12-28 1980-05-20 Krylov Nikolai I Mill stand roll assembly
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
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KR20030013291A (en) * 2001-08-02 2003-02-14 미츠비시 쥬고교 가부시키가이샤 Fluid pressure cylinder and rolling mill
WO2008110243A1 (en) * 2007-03-15 2008-09-18 Sms Siemag Ag Roller device
CN101674899B (en) * 2007-03-15 2012-02-22 Sms西马格股份公司 Rolling device
US8276422B2 (en) 2007-03-15 2012-10-02 Sms Siemag Aktiengesellschaft Roller device
CN104209330A (en) * 2014-08-14 2014-12-17 湖州倍格曼新材料有限公司 Forming device for producing strips
CN104209330B (en) * 2014-08-14 2016-05-11 湖州倍格曼新材料有限公司 For the production of the shaped device of band

Also Published As

Publication number Publication date
DE58902329D1 (en) 1992-10-29
EP0354170A3 (en) 1990-11-22
JPH02142606A (en) 1990-05-31
JP2651939B2 (en) 1997-09-10
DE3827018C2 (en) 1992-06-04
EP0354170B1 (en) 1992-09-23
DE3827018A1 (en) 1990-02-08

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