EP0163104B1 - Roll stand - Google Patents

Roll stand Download PDF

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Publication number
EP0163104B1
EP0163104B1 EP85104739A EP85104739A EP0163104B1 EP 0163104 B1 EP0163104 B1 EP 0163104B1 EP 85104739 A EP85104739 A EP 85104739A EP 85104739 A EP85104739 A EP 85104739A EP 0163104 B1 EP0163104 B1 EP 0163104B1
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EP
European Patent Office
Prior art keywords
roll stand
standard
rolling
stand
carrier
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
Application number
EP85104739A
Other languages
German (de)
French (fr)
Other versions
EP0163104A3 (en
EP0163104A2 (en
Inventor
Hugo Dr. Feldmann
Hans-Heinrich Hartmann
Alexandr Svagr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
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Filing date
Publication date
Application filed by SMS Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0163104A2 publication Critical patent/EP0163104A2/en
Publication of EP0163104A3 publication Critical patent/EP0163104A3/en
Application granted granted Critical
Publication of EP0163104B1 publication Critical patent/EP0163104B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
    • 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
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/26—Adjusting eccentrically-mounted roll bearings
    • 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
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • B21B2031/023—Transverse shifting one housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/42—Turntables

Definitions

  • the invention relates to a rolling stand with a pair of support shafts arranged in two-sided, adjustable bearings and on one side that can be coupled with drive elements, and on the support shafts of which push-fit roller rings can be pushed into a seat between the two bearings, in which the bearings facing away from the drive elements in an independent carrier and with the latter can be moved away from the roll stand in the direction of the roll axis, the support shafts being able to be retained in the roll stand in the resulting one-sided support position.
  • Roll stands of this type are mainly used where the actual roll body has to consist of particularly high-quality materials, because the rolling process takes place at high speed, under high temperatures and / or other influences that put very heavy stress on the rolling material, e.g. in the finished blocks of modern wire rolling mills.
  • the advantage of this rolling stand is that only the rolling ring on e.g. highly wear-resistant and heat-resistant material must exist, while the support shafts only have to be made of a material that can withstand the secondary stresses, e.g. must be able to withstand the bending forces resulting from the rolling pressure.
  • the invention lies
  • the object of the invention is to improve the roll stands of the generic type in such a way that roller support shafts with roll rings can also be used with larger stand dimensions, as are necessary for billet and form steel and also other roll trains, and the roll rings can be replaced without any displacement or disassembly of the entire mill stand.
  • the rolling stand is designed as a two-stand stand with a movable stand which can be moved away from the stand on the drive side and can be placed on a carrier carriage, which stand can be connected to the rolling rings and has holding elements which can be released from them in the moved-away position, wherein the drive-side stand has adjustable and fixable support surfaces for support surfaces which can be placed thereon of the section of this support shaft located between the bearing in this stand and the drive element of the support shaft.
  • This design of the roll stand allows the roller stand bearing the bearing, facing away from the drive, to be moved out in one movement together with the roller rings pulled away from the support shafts, the support shafts being provided in their cantilevered position by the support and support surfaces provided between the drive side roller stand and the drive elements be held.
  • the rolling stand mentioned publication (AT-B-181 483) no precautions to hold the supporting shafts in the supporting position when the rolling rings are removed, and the bearing bracket cannot be placed on a carriage; it also has no holding elements that can be connected and detached to the rolling rings, because it must rather be completely removed and removed from the ends of the supporting shafts before the rolling rings can be removed from these supporting shafts.
  • the holding elements can consist of a bushing, which is connected to the inner ring of the bearing and can be pushed onto the supporting shaft, on the outer circumference of which the rolling ring can be pushed.
  • the bushing can be designed as a split, slotted or undivided spigot with a conical inner circumferential surface and a cylindrical outer circumferential surface and the spigot can have a ring shoulder which forms the inner ring of the bearing.
  • the carrier carriage for the movable stand can have a pair of support bolts which can be moved into the shaft openings of both bearings of this stand and which can be positioned and fixed on the support shafts by means of an adjusting device corresponding to the direction of adjustment of the stand.
  • the carrier can advantageously have its own drive units.
  • the roll stand consists of the stationary with a base 1a connected in a manner not shown to the rolling floor roll stand 1 and the roller stand 2 screwed onto the base 1a by means of a screw connection 8 in both roll stands 1 and 2 the supporting shafts 3 and 4 of the pair of supporting shafts are supported in bearings 5 and 6, respectively; they have a threaded shoulder 3a or 4a on the end facing the roller stand 2, onto which a nut 7 is screwed in each case.
  • the bearings 5 and 6 are each in eccentric bushes 9 and 10, which in turn are rotatably mounted in the roll stands 1 and 2 and form the adjusting device for the support shafts 3, 4.
  • the eccentric bushing 10 in the roller stand 1 projects with a ring segment section 10a over the respective rolling ring 15 and is plug-connected to a corresponding ring shoulder 9a of the other eccentric bushing with the effect that when the eccentric bushings 10 are rotated by means of a threaded spindle 12 in the roller stand 1, this rotation onto the eccentric bushing 9 is transmitted.
  • the eccentric bushing 10 arranged in the roll stand 1 merges into a cylindrical extension 10b comprising the supporting shaft 3, 4, the ring end of which facing the drive clutch 16 has an inwardly directed collar 10c which has a cylindrical support surface 10d for the section of the supporting shaft 3, 4 between the bearing 6 and the drive clutch 16 forms.
  • the roller stand 2 of the roll stand 1, 2 is moved away from the roller stand 1 in the direction of the arrow shown in the direction of the arrow shown and thus the bearings 5 from after loosening the screw connections 8 with the aid of the carriage 18 which can be moved on rollers 20 with the aid of a drive unit (not shown) deducted the support shafts 3, 4.
  • the rolling rings 15 are seated on the cylindrical outer surface 22a of bushes 22, with a conical inner surface 22b. These bushes 22 simultaneously form the bearing inner ring of the bearing 5. The rolling rings 15 are therefore brought out of the roll stand together with the roll stand 2 in this embodiment and held in their withdrawal position.
  • Support bolts 30 serve as the holding element, which, when the carriage 18 is pulled off, enter the bearing openings of the bearings 5 that are released in the process. These support bolts 30 can be aligned to the respective position of the bearings 5 or the bushings 22 with the aid of the adjusting devices arranged on the support carriage 18.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Description

Die Erfindung bezieht sich auf ein Walzgerüst mit einem in zweiseitigen, anstellbaren Lagern angeordneten und an einer Seite mit Antriebselementen kuppelbarem Tragwellenpaar und auf dessen Tragwellen in einen Sitz zwischen beiden Lagern aufschiebbaren Walzringen, bei dem die den Antriebselementen abgewandten Lager in einem selbständigen Träger und mit diesem in Walzenachsrichtung von dem Walzgerüst wegbewegbar sind, wobei die Tragwellen in der dabei entstehenden einseitig gelagerten Tragstellung im Walzgerüst festhaltbar sind.The invention relates to a rolling stand with a pair of support shafts arranged in two-sided, adjustable bearings and on one side that can be coupled with drive elements, and on the support shafts of which push-fit roller rings can be pushed into a seat between the two bearings, in which the bearings facing away from the drive elements in an independent carrier and with the latter can be moved away from the roll stand in the direction of the roll axis, the support shafts being able to be retained in the roll stand in the resulting one-sided support position.

Walzgerüste dieser Gattung werden vorwiegend dort verwendet, wo der eigentliche Walzenkörper aus besonders hochwertigen Werkstoffen bestehen muß, weil der Walzvorgang mit hoher Geschwindigkeit, unter hohen Temperaturen und/ oder anderen, den Walzwerkstoff sehr stark beanspruchenden Einflüssen vor sich geht, so z.B. in den Fertigblöcken von modernen Drahtwalzenstraßen. Der Vorteil dieser Walzgerüste besteht dabei darin, daß nur der Walzring auf z.B. hochverschleißfestem und hitzebeständigem Werkstoff bestehen muß, während die Tragwellen lediglich aus einem Werkstoff hergestellt sein müssen, der den sekundären Beanspruchungen, z.B. den aus dem Walzdruck herrührenden Biegekräften gewachsen sein muß. Da solche Walzringe im Fertigblock von Drahtwalzstraßen verhältnismäßig kleine Durchmesser und ein entsprechend geringes Gewicht aufweisen, brachte die Notwendigkeit des Auswechselns der Walzringe infolge Verschleißes oder für einen Kaliberwechsel keine Schwierigkeiten mit sich. Für den Wechsel wurde und wird das gesamte, meist kastenartig ausgebildete Walzgerüst mit dem Tragwellenpaar und den eingebauten Anstelleinrichtungen nach Lösen der Antriebskuppelelemente von dem Tragwellenpaar aus einem entsprechenden Tragständer gehoben, durch ein vorbereitetes vollständiges Gerüst ersetzt, und das mit den auszuwechselnden Walzringen versehene Gerüst an einen Montageplatz gebracht, wo die beiden Walzenständer von dem Tragwellenpaar abgezogen, die Walzringe von diesem heruntergeschoben und durch neue ersetzt wurden. Das anschließend wieder entsprechend zusammengesetzte Walzgerüst stand dann für den nächsten Wechsel zur Verfügung.Roll stands of this type are mainly used where the actual roll body has to consist of particularly high-quality materials, because the rolling process takes place at high speed, under high temperatures and / or other influences that put very heavy stress on the rolling material, e.g. in the finished blocks of modern wire rolling mills. The advantage of this rolling stand is that only the rolling ring on e.g. highly wear-resistant and heat-resistant material must exist, while the support shafts only have to be made of a material that can withstand the secondary stresses, e.g. must be able to withstand the bending forces resulting from the rolling pressure. Since such rolling rings in the final block of wire rolling mills have a relatively small diameter and a correspondingly low weight, the need to replace the rolling rings as a result of wear or for a change of caliber did not pose any difficulties. For the change, the entire, usually box-like roll stand with the pair of support shafts and the built-in adjusting devices after lifting the drive coupling elements from the pair of support shafts was lifted from a corresponding support stand, replaced by a prepared complete stand, and the stand provided with the roller rings to be replaced was replaced on one Brought to the assembly site, where the two roller stands were removed from the pair of support shafts, the roller rings were pushed down from them and replaced with new ones. The mill stand that was then put together again was then available for the next change.

Für Walzen größeren Gewichtes, die z. B. in den Vorstaffeln von Drahtwalzstraßen oder in Knüppel- oder anderen Formstahlstraßen Anwendung finden, hat man für den Walzenwechsel bisher entweder auch ein komplettes Gerüst gegen das andere ausgetauscht oder nur die jeweiligen Walzensätze mit ihren Lagereinbaustücken, meist durch eine Kassette zusammengehalten, aus den Gerüsten ausfahrbar- und austauschbar ausgebildet. Verwendet wurden hierbei durchweg jedoch Vollmaterialwalzen ohne aufschiebbare Walzringe.For rollers of greater weight, the z. B. in the preliminary stages of wire rolling mills or in billet or other form steel mills, you have either exchanged a complete stand for the other for the roll change or only the respective roll sets with their bearing chocks, mostly held together by a cassette, from the stands extendable and interchangeable. Solid material rolls without sliding ring rings were used throughout.

Man hat auch schon vorgeschlagen für Walzstraßenabschnitte, bei denen die Walzkräfte wesentlich größer sind als in den Fertigblöcken von Drahtwalzstraßen, Tragwellen mit aufschiebbaren Walzringen zu verwenden, und zwar in der Form, daß ein Walzgerüst mit doppelseitig gelagerten anstellbarem Walzentragwellenpaar, auf das die Walzringe einseitig (fliegend) auswechselbar aufschiebbar, und deshalb für sich ohne die Tragwellen und zu diesen gehörende Gerüstteile auswechselbar waren, nach dem Aufschieben der Walzringe durch ein Zapfenlagerpaar verstärkt wurde, das auf über die Walzringe hinauskragende Zapfenansätze der Tragwellen aufgeschoben wurde. Die Lagergehäuse waren dabei zur Aufnahme von Walzkräften kraftschlüssig bzw. formschlüssig miteinander verbunden.It has also been proposed for rolling mill sections in which the rolling forces are significantly greater than in the finished blocks of wire rolling mills to use supporting shafts with push-on rolling rings, in the form that a rolling stand with double-sided adjustable roller supporting shaft pair on which the rolling rings on one side ( flying) exchangeable, and therefore interchangeable without the support shafts and the scaffolding parts belonging to them, after pushing on the roller rings was reinforced by a pair of trunnion bearings, which was pushed onto the spigots of the support shafts projecting beyond the roller rings. The bearing housings were non-positively or positively connected to absorb rolling forces.

Des weiteren ist es bekannt (DE-C-423 595) Walzgerüste mit zwei parallelen Walzenständern zu verwenden, bei denen die Tragwellen aus einander gegenüberliegend, jeweils in dem einen bzw. dem anderen Ständer gelagerten Paaren von Teiltragwellen bestehen. Dabei ist ein jeweiliger mit dem Walzring verbindbarer und mit einem gegenüberliegenden Konusansatz der Teiltragwellen, den Walzring tragender Konusansatz fliegend in dem einen Walzenständer gelagert. Die Teiltragwellen sind außerhalb dieser Lagerposition nur mit Hilfe besonderer von außen an das Walzgerüst heran und von diesem wieder weg bringbarer Trageinrichtungen festhaltbar.Furthermore, it is known (DE-C-423 595) to use roll stands with two parallel roll stands, in which the support shafts consist of mutually opposite pairs of partial support shafts supported in one or the other stand. In this case, a respective conical shoulder, which can be connected to the rolling ring and with an opposite conical shoulder of the partial support shafts and carries the rolling ring, is overhung in the one roll stand. Outside of this bearing position, the partial support shafts can only be held in place with the aid of special support devices that can be brought from the outside and removed from the latter.

Ausgehend von einer weiter bekanntgewordenen Walzgerüstausbildung (AT-B-181 483), die aus einem Ein-Ständer-Walzgerüst mit einem Krag- überbau besteht, in den ein selbständiger Lagerträger für die der Antriebsseite abgewandten Lager des Tragwellenpaares einhängbar ist, liegt der Erfindung die Aufgabe zugrunde, die gattungsgemäßen Walzgerüste so zu verbessern, daß auch bei größeren Gerüstabmessungen, wie sie für Knüppel- und Formstahl und auch andere Walzenstraßen notwendig sind, Walzentragwellen mit Walzringen verwendbar sind, und die Walzringe ausgetauscht werden können, ohne daß es einer Versetzung oder Demontage des gesamten Walzgerüstes bedarf. Diese Aufgabe wird dadurch gelöst, daß das Walzgerüst als Zwei-Ständer-Gerüst mit einem beweglichen, von dem antriebsseitigen Ständer weg fahrbaren, auf einen Tragwagen aufsetzbaren Ständer ausgebildet ist, der mit den Walzringen verbind- und von diesen in weggefahrener Stellung lösbare Halteelemente aufweist, wobei der antriebsseitige Ständer einstell- und festlegbare Stützflächen für auf diese auflegbare Auflageflächen des zwischen dem Lager in diesem Ständer und dem Antriebselement der Tragwelle gelegenen Abschnitts dieser Tragwelle aufweist.On the basis of a rolling stand design (AT-B-181 483) which has become further known and which consists of a single-stand rolling stand with a cantilever structure into which an independent bearing bracket for the bearings of the pair of support shafts facing away from the drive side can be hung, the invention lies The object of the invention is to improve the roll stands of the generic type in such a way that roller support shafts with roll rings can also be used with larger stand dimensions, as are necessary for billet and form steel and also other roll trains, and the roll rings can be replaced without any displacement or disassembly of the entire mill stand. This object is achieved in that the rolling stand is designed as a two-stand stand with a movable stand which can be moved away from the stand on the drive side and can be placed on a carrier carriage, which stand can be connected to the rolling rings and has holding elements which can be released from them in the moved-away position, wherein the drive-side stand has adjustable and fixable support surfaces for support surfaces which can be placed thereon of the section of this support shaft located between the bearing in this stand and the drive element of the support shaft.

Diese Ausbildung des Walzgerüstes erlaubt es, den die Lager tragenden, dem Antrieb abgewandten Walzenständer in einer Bewegung zusammen mit den dabei von den Tragwellen abgezogenen Walzringen auszufahren, wobei die Tragwellen durch die zwischen dem antriebsseitigen Walzenständer und den Antriebselementen vorgesehenen Stütz- und Auflageflächen in ihrer Kraglage festgehalten werden. Demgegenüber sind bei der Ausbildung des Walzgerüstes nach der zuletzt genannten Druckschrift (AT-B-181 483) keine Vorkehrungen zum Festhalten der Tragwellen in der Tragstellung bei abgezogenen Walzringen getroffen, und der Lagerträger ist nicht auf einen Wagen aufsetzbar; er weist auch keine mit den Walzringen verbind- und lösbare Halteelemente auf, denn er muß vielmehr erst vollständig von den Enden der Tragwellen abgezogen und entfernt werden, ehe sich die Walzringe von diesen Tragwellen abziehen lassen.This design of the roll stand allows the roller stand bearing the bearing, facing away from the drive, to be moved out in one movement together with the roller rings pulled away from the support shafts, the support shafts being provided in their cantilevered position by the support and support surfaces provided between the drive side roller stand and the drive elements be held. In contrast, are the last in the formation of the rolling stand mentioned publication (AT-B-181 483) no precautions to hold the supporting shafts in the supporting position when the rolling rings are removed, and the bearing bracket cannot be placed on a carriage; it also has no holding elements that can be connected and detached to the rolling rings, because it must rather be completely removed and removed from the ends of the supporting shafts before the rolling rings can be removed from these supporting shafts.

Wie die Erfindung in einer Weiterbildung vorsieht, können die Halteelemente aus einer, mit dem Innenring des Lagers verbundenen, auf die Tragwelle aufschiebbaren Buchse bestehen, auf deren Außenumfang der Walzring aufschiebbar ist. Die Büchse kann als geteilte, geschlitzte oder ungeteilte Zapfenbüchse mit konisch verlaufender Innenumfangsfläche und zylindrischer Außenumfangsfläche ausgebildet sein und die Zapfenbüchse einen, den Innenring des Lagers bildenden Ringansatz aufweisen. Weiterhin besteht erfindungsgemäß die Möglichkeit, die Anstelleinrichtungen der Ständer lösbar miteinander zu kuppeln und Walzarmaturen, die beiden Ständern gemeinsam sind und von dem beweglichen Ständer getragen werden und an diesem befestigt sind, mit dem anderen Ständer steckverbindbar auszubilden.As the invention provides in a further development, the holding elements can consist of a bushing, which is connected to the inner ring of the bearing and can be pushed onto the supporting shaft, on the outer circumference of which the rolling ring can be pushed. The bushing can be designed as a split, slotted or undivided spigot with a conical inner circumferential surface and a cylindrical outer circumferential surface and the spigot can have a ring shoulder which forms the inner ring of the bearing. Furthermore, according to the invention, there is the possibility of detachably coupling the adjusting devices of the stands and of forming rolling fittings, which are common to both stands and are carried by the movable stand and are fastened to it, to be plug-in with the other stand.

Der Tragwagen für den beweglichen Ständer kann erfindungsgemäß ein Paar, in die Wellenöffnungen beider Lager dieses Ständers einfahrbarer Tragbolzen aufweisen, die mittels einer der Anstellrichtung der Ständer entsprechenden Stelleinrichtung auf die Tragwellen hin positionier-und festlegbar sind. Der Tragwagen kann dabei vorteilhaft eigene Antriebsaggregate aufweisen.According to the invention, the carrier carriage for the movable stand can have a pair of support bolts which can be moved into the shaft openings of both bearings of this stand and which can be positioned and fixed on the support shafts by means of an adjusting device corresponding to the direction of adjustment of the stand. The carrier can advantageously have its own drive units.

Die Erfindung wird anhand der in der Zeichnung dargestellten Ausführungsbeispiele näher erläutert. In der Zeichnung zeigen

  • Fig. 1 das Walzgerüst von der Seite gesehen, teilweise axial geschnitten,
  • Fig. 2 die Stirnansicht von Fig. 1 teilweise radial geschnitten und
  • Fig. 3 das Walzgerüst nach Fig. 1 in auseinandergebautem Zustand.
The invention is explained in more detail using the exemplary embodiments shown in the drawing. Show in the drawing
  • 1 seen the roll stand from the side, partially axially cut,
  • Fig. 2 shows the end view of Fig. 1 partially cut radially and
  • Fig. 3 shows the roll stand according to Fig. 1 in a disassembled state.

Wie aus Fig. 1 zu ersehen ist, besteht das Walzgerüst aus dem ortsfest mit einem Sockel 1a auf nicht dargestellte Weise mit dem Walzflur verbundenen Walzenständer 1 und dem auf den Sockel 1a mittels einer Schraubverbindung 8 aufgeschraubten Walzenständer 2. In beiden Walzenständern 1 und 2 sind die Tragwellen 3 und 4 des Tragwellenpaares in Lagern 5 bzw. 6 gelagert; sie weisen am dem Walzenständer 2 zugewandten Ende einen Gewindeabsatz 3a bzw. 4a auf, auf den jeweils eine Mutter 7 aufgeschraubt ist.As can be seen from Fig. 1, the roll stand consists of the stationary with a base 1a connected in a manner not shown to the rolling floor roll stand 1 and the roller stand 2 screwed onto the base 1a by means of a screw connection 8 in both roll stands 1 and 2 the supporting shafts 3 and 4 of the pair of supporting shafts are supported in bearings 5 and 6, respectively; they have a threaded shoulder 3a or 4a on the end facing the roller stand 2, onto which a nut 7 is screwed in each case.

Beim Ausführungsbeispiel befinden sich die Lager 5 und 6 jeweils in Exzenterbüchsen 9 und 10, die ihrerseits in den Walzenständern 1 und 2 drehbar gelagert sind und die Anstelleinrichtung für die Tragwellen 3, 4 bilden. Die Exzenterbüchse 10 im Walzenständer 1 kragt mit einem Ringsegmentabschnitt 10a über den jeweiligen Walzring 15 und ist mit einem entsprechenden Ringansatz 9a der anderen Exzenterbüchse steckverbunden mit der Wirkung, daß beim Drehen der Exzenterbüchsen 10 mittels einer Gewindespindel 12 im Walzenständer 1 diese Drehung auf die Exzenterbüchse 9 übertragen wird. Die im Walzenständer 1 angeordnete Exzenterbüchse 10 geht in eine, die Tragwelle 3, 4 umfassende zylindrische Verlängerung 10b über, deren der Antriebskupplung 16 zugewandtes Ringende einen nach innen gerichteten Bund 10c aufweist, der eine zylindrische Stützfläche 10d für den Abschnitt der Tragwelle 3, 4 zwischen dem Lager 6 und der Antriebskupplung 16 bildet.In the embodiment, the bearings 5 and 6 are each in eccentric bushes 9 and 10, which in turn are rotatably mounted in the roll stands 1 and 2 and form the adjusting device for the support shafts 3, 4. The eccentric bushing 10 in the roller stand 1 projects with a ring segment section 10a over the respective rolling ring 15 and is plug-connected to a corresponding ring shoulder 9a of the other eccentric bushing with the effect that when the eccentric bushings 10 are rotated by means of a threaded spindle 12 in the roller stand 1, this rotation onto the eccentric bushing 9 is transmitted. The eccentric bushing 10 arranged in the roll stand 1 merges into a cylindrical extension 10b comprising the supporting shaft 3, 4, the ring end of which facing the drive clutch 16 has an inwardly directed collar 10c which has a cylindrical support surface 10d for the section of the supporting shaft 3, 4 between the bearing 6 and the drive clutch 16 forms.

Der Walzenständer 2 des Walzgerüstes 1, 2 wird nach Lösen der Schraubverbindungen 8 mit Hilfe des in Fig. 3 dargestellten auf Rollen 20 mit Hilfe eines nicht dargestellten Antriebsaggregats verfahrbaren Tragwagens 18 von dem Walzenständer 1 in Richtung des eingezeichneten Pfeils wegbewegt und damit die Lager 5 von den Tragwellen 3, 4 abgezogen. Beim Ausführungsbeispiel sitzen die Walzringe 15 auf der zylindrischen Außenfläche 22a von Büchsen 22, mit konisch verlaufender Innenfläche 22b. Diese Büchsen 22 bilden dabei gleichzeitig den Lagerinnenring des Lagers 5. Die Walzringe 15 werden deshalb bei dieser Ausbildung zusammen mit dem Walzenständer 2 aus dem Walzgerüst herausgebracht und in ihrer Abzugslage gehalten. Als Halteelement dienen Tragbolzen 30, die bei der Abziehbewegung des Wagens 18 in die dabei frei werdenden Lageröffnungen der Lager 5 eintreten. Diese Tragbolzen 30 sind mit Hilfe der auf dem Tragwagen 18 angeordneten Stelleinrichtungen auf die jeweilige Anstellposition der Lager 5 bzw. der Büchsen 22 ausrichtbar.The roller stand 2 of the roll stand 1, 2 is moved away from the roller stand 1 in the direction of the arrow shown in the direction of the arrow shown and thus the bearings 5 from after loosening the screw connections 8 with the aid of the carriage 18 which can be moved on rollers 20 with the aid of a drive unit (not shown) deducted the support shafts 3, 4. In the exemplary embodiment, the rolling rings 15 are seated on the cylindrical outer surface 22a of bushes 22, with a conical inner surface 22b. These bushes 22 simultaneously form the bearing inner ring of the bearing 5. The rolling rings 15 are therefore brought out of the roll stand together with the roll stand 2 in this embodiment and held in their withdrawal position. Support bolts 30 serve as the holding element, which, when the carriage 18 is pulled off, enter the bearing openings of the bearings 5 that are released in the process. These support bolts 30 can be aligned to the respective position of the bearings 5 or the bushings 22 with the aid of the adjusting devices arranged on the support carriage 18.

Claims (8)

1. Roll stand with a carrier shaft pair (3, 4) which are arranged in double-sided adjustable bearings (5, 6) and couplable at one side with drive elements (16), and with rolling rings (15), which are pushable onto the carrier shafts thereof in a seating between both the bearings (5, 6), in which the bearings (5) remote from the drive elements (16) are arranged in an independent carrier (2) and movable with this away from the roll stand in axial direction of the rolls, wherein the carrier shafts (3, 4) are retained in the roll stand in the then arising one-sidedly borne cantilever setting, characterised thereby, that the roll stand is constructed as two-standard roll stand (1, 2) with a movable standard (2), which is movable away from the standard (1) at the drive side, settable onto a trolley (18) and which displays retaining elements which are connectable with the rolling rings (15) and detachable from these in moved-away setting, wherein the standard (1) at the drive side displays adjustable and fixable support surfaces (10d) for bearing surfaces, which are layable onto these, of that portion of this carrier shaft (3), which is disposed between the bearing (6) in this standard (1) and the drive element (16) of the carrier shaft (3).
2. Roll stand according to claim 1, characterised thereby, that the retaining elements consist of a bushing (22), which is pushable onto the carrier shaft (3, 4) and connected with the inner ring of the bearing (5) and onto the outer circumference of which the rolling ring (15) is pushable.
3. Roll stand according to claim 2, characterised thereby, that the bushing (22) is constructed as divided, slotted or undivided sleeve with conically extending inner circumferential surface (22b) and cylindrical outer circumferential surface (22a).
4. Roll stand according to claim 3, characterised thereby, that the sleeve (22) displays an annular projection forming the inner ring of the bearing (5).
5. Roll stand according to one or more of the claims 1 to 4, characterised thereby, that the screw-down equipments (9, 10, 12) of the standards (1, 2) are each detachably coupled with the other.
6. Roll stand according to one or more of the claims 1 to 5, characterised thereby, that rolling equipment common to both the standards (1, 2) is carried by the movable standard (2) and fastened thereat and pluggably connectable with the other standard (1).
7. Roll stand according to one or more of the claims 1 to 6, characterised thereby, that the trolley (18) for the movable standard (2) displays a pair of carrier pins (30), which are movable into the shaft openings of both the bearings (5) of this standard (2) and which are positionable and fixable on the carrier shafts (3, 4) by means of a setting equipment (32) corresponding to the screw-down equipments (9, 10, 12) of the standards (1, 2).
8. Roll stand according to one or more of the claims 1 to 7, characterised thereby, that the trolleys (18) display own drive units.
EP85104739A 1984-04-28 1985-04-19 Roll stand Expired EP0163104B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3415896 1984-04-28
DE3415896 1984-04-28

Publications (3)

Publication Number Publication Date
EP0163104A2 EP0163104A2 (en) 1985-12-04
EP0163104A3 EP0163104A3 (en) 1987-08-26
EP0163104B1 true EP0163104B1 (en) 1989-11-29

Family

ID=6234599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85104739A Expired EP0163104B1 (en) 1984-04-28 1985-04-19 Roll stand

Country Status (4)

Country Link
US (1) US4653304A (en)
EP (1) EP0163104B1 (en)
JP (1) JPH069684B2 (en)
DE (1) DE3574463D1 (en)

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Also Published As

Publication number Publication date
DE3574463D1 (en) 1990-01-04
JPS60234704A (en) 1985-11-21
JPH069684B2 (en) 1994-02-09
US4653304A (en) 1987-03-31
EP0163104A3 (en) 1987-08-26
EP0163104A2 (en) 1985-12-04

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