WO2003015949A1 - Device for changing the work rolls and the back-up rolls of a strip mill - Google Patents

Device for changing the work rolls and the back-up rolls of a strip mill Download PDF

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Publication number
WO2003015949A1
WO2003015949A1 PCT/DE2002/002809 DE0202809W WO03015949A1 WO 2003015949 A1 WO2003015949 A1 WO 2003015949A1 DE 0202809 W DE0202809 W DE 0202809W WO 03015949 A1 WO03015949 A1 WO 03015949A1
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WO
WIPO (PCT)
Prior art keywords
carriage
roll
roller
changing
pull
Prior art date
Application number
PCT/DE2002/002809
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German (de)
French (fr)
Inventor
Reinhard Wittkopf
Original Assignee
Sms Demag Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sms Demag Ag filed Critical Sms Demag Ag
Priority to US10/485,974 priority Critical patent/US20050000263A1/en
Priority to JP2003520494A priority patent/JP2004538148A/en
Priority to EP02754458A priority patent/EP1414598A1/en
Publication of WO2003015949A1 publication Critical patent/WO2003015949A1/en

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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
    • B21B31/103—Manipulators or carriages therefor

Definitions

  • the invention relates to a device for changing the work and back-up rolls of a strip rolling mill, by means of a roll changing carriage which can be moved transversely to the roll stand, which takes up the pulled out old roll sets and enables exchange for new roll sets.
  • the known changing devices have the disadvantages that the construction effort for the creation of the device is very high, in particular because it is not infrequent that considerable foundation adjustments are also necessary.
  • the necessary cylinders and hydraulic motors often have to be supplied with energy via cable drag chains, which is relatively complex.
  • the object of the present invention is to design the device such that it is not only possible to change the backup rolls, but also to change the work rolls with the same backup roll changing cylinder.
  • an interchangeable cylinder which is fixed at the level of the hut, the piston rod of which can be extended and retracted transversely to the rolling stand.
  • a pull-out carriage which is arranged at the front end of the piston rod of the change cylinder, is displaceable on the roll changing carriage and can be coupled to it in such a way that the pull-out carriage, together with the roll changing carriage, can be moved transversely to the roll stand by the changing cylinder,
  • a transverse sliding table arranged in the roller changing carriage, which can be displaced transversely to the direction of movement of the roller changing carriage by means of a displacement cylinder independent of the roller changing carriage and through which the roller sets to be exchanged can be brought into or out of the changing position aligned with the center of the stand.
  • This solution according to the invention has a number of advantages.
  • all cylinders are arranged so that fixed piping is possible. This eliminates the usual cable drag chains. Only three cylinder units are required, namely for the roll changing cylinder, the cross slide table and the locking.
  • the roller changing carriage is in the waiting position shown in FIG. 1.
  • the roller change carriage 2 is below the change cylinder 4, which is shown with the piston rod 5 retracted.
  • a prepared new set of work rolls is located on the transverse shift table 6 next to the change cylinder 4.
  • a pull-out carriage 3 is arranged. This is - as shown in Figure 2, with the roll changer 2 through the piston rod in the direction of the roll stand move and connect automatically to the old work roll set 8. Subsequently, the connection between the pull-out carriage 3 and the roll changing carriage 2 is released and at the same time the roll changing carriage is locked by the transverse sliding cylinder 7 (FIG. 3).
  • the pull-out carriage 3 can pull the old roller set up to the cross slide table 6 by means of the exchangeable cylinder 4. There, the old work roll set is brought out and the new work roll set is brought into position (FIG. 4) by means of a corresponding transverse displacement by the cross slide cylinder 7, and then the new work roll set can be moved into the stand, as shown in FIGS. 5 and 6.
  • FIGS. 7 and 8 show the restoration of the starting point, that is to say the waiting position of the roller change carriage 2.
  • FIGS. 5 'to 16' show the further installation process, which is the opposite of the removal, and the return of the roller change carriage 2 to the waiting position or starting position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Metal Rolling (AREA)

Abstract

The invention relates to a method and a device for changing the work rolls and the back-up rolls (8, 9) of a strip mill, by means of a roll-changing carriage (2) which can be transversally displaced in relation to the roll stand (1). Said roll-changing carriage receives the old sets of rolls removed, enabling them to be exchanged for new sets of rolls.

Description

Einrichtung zum Wechseln der Arbeits- und Stützwalzen eines BandwalzwerkesDevice for changing the work and backup rolls of a strip rolling mill
Die Erfindung betrifft eine Einrichtung zum Wechseln der Arbeits-und Stützwalzen eines Bandwalzwerkes, mittels eines quer zum Walzgerüst verschiebbaren Waizenwechselwagens, der die herausgezogenen alten Waizensätze aufnimmt und den Austausch gegen neue Walzensätze ermöglicht.The invention relates to a device for changing the work and back-up rolls of a strip rolling mill, by means of a roll changing carriage which can be moved transversely to the roll stand, which takes up the pulled out old roll sets and enables exchange for new roll sets.
Einrichtungen zu Wechseln von Walzen sind in den verschiedensten Formen bekannt, wobei auch Walzenwechselwagen zum Einsatz kommen. Ein Beispiel hierfür ist die DE 39 30 125 C2.Devices for changing rollers are known in a wide variety of forms, roller changing carriages also being used. An example of this is DE 39 30 125 C2.
Allgemein haben die bekannten Wechseleinrichtungen die Nachteile, dass der bauliche Aufwand zur Erstellung der Einrichtung sehr hoch ist, insbesondere weil nicht selten auch erhebliche Fundamentanpassungen notwendig sind. Hinzukommt, dass die notwendigen Zylinder und Hydraulikmotoren oft über Kabelschleppketten mit Energie versorgt werden müssen, was relativ aufwendig ist.In general, the known changing devices have the disadvantages that the construction effort for the creation of the device is very high, in particular because it is not infrequent that considerable foundation adjustments are also necessary. In addition, the necessary cylinders and hydraulic motors often have to be supplied with energy via cable drag chains, which is relatively complex.
Aufgabe der vorliegenden Erfindung ist es, die Einrichtung so auszugestalten, dass damit nicht nur ein Wechseln der Stützwalzen, sondern mit dem gleichen Stützwalzenwechselzylinder auch der Wechsel der Arbeitswalzen erfolgen kann.The object of the present invention is to design the device such that it is not only possible to change the backup rolls, but also to change the work rolls with the same backup roll changing cylinder.
Gelöst wird diese Aufgabe erfindungsgemäß mit den Merkmaien des Patentanspruchs 1.This object is achieved according to the invention with the features of claim 1.
Im Einzelnen ist hierbei ein ortsfest auf Hüttenflurhöhe angeordneter Wechselzylinder vorgesehen, dessen Kolbenstange quer zum Walzgerüst ein - und ausfahrbar ist, - ein Ausziehwagen, der am vorderen Ende der Kolbenstange des Wechselzylinders angeordnet, auf dem Walzenwechselwagen verschiebbar und mit diesem derart koppelbar ist, dass der Ausziehwagen zusammen mit dem Walzenwechselwagen durch den Wechselzyiinder quer zum Walzgerüst verschiebbar ist,Specifically, an interchangeable cylinder is provided which is fixed at the level of the hut, the piston rod of which can be extended and retracted transversely to the rolling stand. a pull-out carriage, which is arranged at the front end of the piston rod of the change cylinder, is displaceable on the roll changing carriage and can be coupled to it in such a way that the pull-out carriage, together with the roll changing carriage, can be moved transversely to the roll stand by the changing cylinder,
- und ein im Walzenwechseiwagen angeordneten Querverschiebetisch, der durch einen vom Walzenwechselwagen unabhängigen Verschiebezylinder quer zur Bewegungsrichtung des Walzenwechselwagens verschiebbar ist und durch den die auszutauschenden Walzensätze in die bzw. aus der mit der Gerüstmitte fluchtende(n) Wechseiposition bringbar sind.- And a transverse sliding table arranged in the roller changing carriage, which can be displaced transversely to the direction of movement of the roller changing carriage by means of a displacement cylinder independent of the roller changing carriage and through which the roller sets to be exchanged can be brought into or out of the changing position aligned with the center of the stand.
Diese erfindungsgemäße Lösung hat eine Reihe von Vorteilen.This solution according to the invention has a number of advantages.
So sind beispielsweise alle Zylinder so angeordnet, dass feste Verrohrungen möglich sind. Damit entfallen die sonst üblichen Kabelschleppketten. Es sind nur noch drei Zylindereinheiten notwendig, und zwar für den Walzenwechselzylinder, den Querverschiebetisch und die Verriegelung.For example, all cylinders are arranged so that fixed piping is possible. This eliminates the usual cable drag chains. Only three cylinder units are required, namely for the roll changing cylinder, the cross slide table and the locking.
Da der Wechselzyiinder über dem Hüttenflur liegt, sind kaum Fundamentarbeiten notwendig, so dass dadurch und durch die einfache und leichtere Bauweise der gesamten Wechseleinrichtung die Kosten verringert werden konnten.Since the exchange cylinder lies above the hut floor, hardly any foundation work is necessary, so that the costs and the simple and lighter design of the entire exchange device could be reduced.
Hinzukommt schließlich noch die einfachere Zugängiichkeit der fest angeordneten Zylindereinheiten, was die Wartungsarbeiten erleichtert-Finally, there is the easier accessibility of the fixed cylinder units, which simplifies maintenance work.
Wie der Arbeitswalzenwechsel und der Stützwalzenwechsel nacheinander ausgeführt werden, soll nachfolgend an der Prinzipskizzen erläutert werden.How the work roll change and the backup roll change are carried out one after the other will be explained below using the schematic diagrams.
Zunächst befindet sich der Walzenwechseiwagen in der in Figur 1 gezeigten Warteposition. Hierbei steht der Walzenwechseiwagen 2 unterhalb des - mit eingezogener Kolbenstange 5 dargestellten - Wechselzylinders 4. Ein vorbereiteter neuer Arbeitswalzensatz befindet sich auf dem Querverschiebetisch 6 neben dem Wechselzyiinder 4. Am vorderen Ende der Kolbenstange 5 ist ein Ausziehwagen 3 angeordnet. Dieser wird - wie Figur 2 zeigt, mit dem Walzenwechseiwagen 2 durch die Kolbenstange in Richtung auf das Walzgerüst verfahren und kuppeit automatisch am alten Arbeitswalzensatz 8 an. Anschließend wird die Verbindung zwischen Ausziehwagen 3 und Walzenwechseiwagen 2 gelöst und gleichzeitig erfolgt eine Verriegelung des Walzenwechselwagens durch den Querschiebezylinder 7 (Figur 3). Nun kann mittels des Wechselzylinders 4 der Ausziehwagen 3 den alten Walzensatz bis auf den Querschiebetisch 6 ziehen. Dort wird durch entsprechende Querverschiebung durch den Querschiebezylinder 7 der alte Arbeitswalzensatz aus und der neue Arbeitswalzensatz in Position gebracht (Fig. 4) und anschließend kann der neue Arbeitswalzensatz in das Gerüst eingefahren werden, wie dies die Figuren 5 und 6 zeigen.First of all, the roller changing carriage is in the waiting position shown in FIG. 1. Here, the roller change carriage 2 is below the change cylinder 4, which is shown with the piston rod 5 retracted. A prepared new set of work rolls is located on the transverse shift table 6 next to the change cylinder 4. At the front end of the piston rod 5, a pull-out carriage 3 is arranged. This is - as shown in Figure 2, with the roll changer 2 through the piston rod in the direction of the roll stand move and connect automatically to the old work roll set 8. Subsequently, the connection between the pull-out carriage 3 and the roll changing carriage 2 is released and at the same time the roll changing carriage is locked by the transverse sliding cylinder 7 (FIG. 3). Now the pull-out carriage 3 can pull the old roller set up to the cross slide table 6 by means of the exchangeable cylinder 4. There, the old work roll set is brought out and the new work roll set is brought into position (FIG. 4) by means of a corresponding transverse displacement by the cross slide cylinder 7, and then the new work roll set can be moved into the stand, as shown in FIGS. 5 and 6.
Die Wiederherstellung des Ausgangspunktes, also der Warteposition des Walzenwechselwagens 2 zeigen die Figuren 7 und 8.FIGS. 7 and 8 show the restoration of the starting point, that is to say the waiting position of the roller change carriage 2.
Sollen nun auch noch die Stützwalzen ausgetauscht werden, so wird der Wiedereinbau des neuen Arbeitswalzensatzes zurückgestellt und mitteis des Ausziehwagens 3 zunächst die untere Stützwalze 9 aus dem Walzgerüst herausgezogen. Hierzu wird diese Stützwalze auf Schienen quer zum Waizgerüst verfahren, wobei sich die Schienen unterhalb des Hüttenflures befinden (Fig. 1' und 2').If the back-up rolls are now also to be replaced, the reinstallation of the new work roll set is put on hold and the lower back-up roll 9 is first pulled out of the roll stand by means of the pull-out carriage 3. For this purpose, this support roller is moved on rails transversely to the Waiz stand, the rails being located below the hut floor (FIGS. 1 'and 2').
In einer Wechselposition seitlich vom Gerüst wird dann auf die untere Stützwalze ein Dummy aufgesetzt (Fig.31), der - nach dem Zurückfahren in das Walzgerüst - die obere Stützwalze aufnimmt (Fig.4'). Beide Stützwalzen werden dann in die seitlich neben dem Walzgerüst vorgesehene Wechselposition gebracht, wo mittels eines Kranes der alte Walzensatz abtransportiert und der neue Walzensatz herangebracht wird. Die Figuren 5' bis 16' zeigen dann den - gegenüber dem Ausbau umgekehrten - weiteren Einbauvorgang und die Rückkehr des Walzenwechselwagens 2 in die Warteposition oder Ausgangsstellung. In a changing position to the side of the stand, a dummy is then placed on the lower support roller (Fig.3 1 ), which - after returning to the roll stand - holds the upper support roller (Fig.4 '). Both back-up rolls are then brought into the change position provided to the side of the roll stand, where the old roll set is removed by a crane and the new roll set is brought up. FIGS. 5 'to 16' then show the further installation process, which is the opposite of the removal, and the return of the roller change carriage 2 to the waiting position or starting position.

Claims

Patentansprüche claims
1. Einrichtung zum Wechsein der Arbeits-und Stützwalzen eines Bandwalzwerkes, mittels eines quer zum Walzgerüst verschiebbaren Walzenwechselwagens, der die herausgezogenen alten Walzensätze aufnimmt und den Austausch gegen neue Walzensätze ermöglicht, gekennzeichnet durch1. Device for changing the work and back-up rolls of a strip rolling mill, by means of a roll changing carriage which can be moved transversely to the roll stand and which takes up the pulled-out old roll sets and enables exchange for new roll sets, characterized by
- einen ortsfest auf Hüttenflurhöhe angeordneten Wechselzyiinder (4), dessen Kolbenstange (5) quer zum Walzgerüst (1) ein - und ausfahrbar ist,a stationary cylinder (4) arranged at the level of the hut, the piston rod (5) of which can be moved in and out transversely to the rolling stand (1),
- einem Ausziehwagen (3), der am vorderen Ende der Kolbenstange (5) des Wechselzylinders (4) angeordnet, auf dem. Walzenwechseiwagen (2) verschiebbar und mit diesem derart koppelbar ist, dass der Ausziehwagen (3) zusammen mit dem Walzenwechseiwagen (2) durch den Wechselzyiinder (4) quer zum Walzgerüst (1 ) verschiebbar ist,- A pull-out carriage (3) arranged at the front end of the piston rod (5) of the change cylinder (4) on the. Roller change carriage (2) is displaceable and can be coupled to it in such a way that the pull-out carriage (3) together with the roller change carriage (2) can be displaced transversely to the roll stand (1) by the change cylinder (4)
- und durch einen im Walzenwechseiwagen (2) angeordneten Querverschiebetisch (6), der durch einen vom Walzenwechseiwagen (2) unabhängigen Verschiebezyiinder (7) quer zur Bewegungsrichtung des Walzenwechselwagens (2) verschiebbar ist und durch den die auszutauschenden Walzensätze in die bzw. aus der mit der Gerüstmitte fluchtende(π) Wechselposition bringbar sind.- And by a in the roller change carriage (2) arranged transverse shift table (6), which is displaceable by a displacement cylinder independent of the roller change carriage (2) displacement cylinder (7) transversely to the direction of movement of the roller change carriage (2) and through which the roller sets to be exchanged into or out of with the middle of the scaffold aligned (π) change position can be brought.
2. Verfahren zum Austausch der Arbeitswalzen bei einem Walzgerüst und mit einem Walzenwechseiwagen nach Anspruch 1 , gekennzeichnet durch die folgenden Schritte:2. A method for exchanging the work rolls in a roll stand and with a roll changer according to claim 1, characterized by the following steps:
- der Walzenwechseiwagen (1), auf dessen Querverschiebetisch (6) sich ein neuer Arbeitswalzensatz befindet, steht in der Warteposition, - der Ausziehwagen (3) wird an den Walzenwechseiwagen angekoppelt durch den Wechselzyiinder (4) werden der Walzenwechseiwagen (2) und der Ausziehwagen (3) gemeinsam in Richtung Walzgerüst (1) verschoben,- The roller changing carriage (1), on the transverse sliding table (6) of which there is a new work roller set, is in the waiting position, - The pull-out carriage (3) is coupled to the roll changing carriage by the changing cylinder (4), the roll changing carriage (2) and the pull-out carriage (3) are moved together in the direction of the roll stand (1),
- der Ausziehwagen (3) wird mit dem auszutauschenden Arbeitswalzensatz (8) verbunden,- The pull-out carriage (3) is connected to the work roll set (8) to be replaced,
- der Ausziehwagen (3) wird vom Walzenwechseiwagen (2) entkoppelt und gleichzeitig wird der Querverschiebetisch (6) mit dem Verschiebezylinder (7) verbunden, wobei hierdurch auch der Walzenwechseiwagen in seiner Position vor dem Walzgerüst arretiert wird,- The pull-out carriage (3) is decoupled from the roller changing carriage (2) and at the same time the transverse sliding table (6) is connected to the shifting cylinder (7), whereby the roller changing carriage is also locked in its position in front of the roll stand,
- mittels des Wechselzylinders (4) zieht der Ausziehwagen den Arbeitswalzensatz auf den Querverschiebetisch (6),- By means of the changing cylinder (4), the pull-out carriage pulls the work roll set onto the transverse sliding table (6),
- durch Querverschieben wird der alte Arbeitswalzensatz aus und der neue Arbeitswalzensatz in die mit der Walzgerüstmitte fluchtende Wechselposition gebracht,- the old work roll set is moved out and the new work roll set is moved into the change position aligned with the center of the roll stand,
- mittels des Wechselzylinders (4) schiebt der Ausziehwagen (3) den neuen Arbeitswalzensatz in das Walzgerüst und wird von dem Arbeitswalzensatz gelöst,- By means of the interchangeable cylinder (4), the pull-out carriage (3) pushes the new work roll set into the roll stand and is released from the work roll set,
- der Verschiebezylinder (7) wird vom Querverschiebetisch gelöst und der Ausziehwagen am Walzenwechseiwagen angekoppelt,- The shift cylinder (7) is released from the cross-shift table and the pull-out carriage is coupled to the roller changing carriage,
- der Walzenwechseiwagen wird mit dem auf dem Querverschiebetisch befindlichen, alten Arbeitswalzensatz in die Warteposition zurückgefahren, wo der alte Arbeitswalzensatz entfernt wird.- The roller change carriage is moved back to the waiting position with the old work roll set located on the transverse shift table, where the old work roll set is removed.
3. Verfahren zum Austausch der Stützwalzen nach dem Entfernen der Arbeitswalzen bei einem Walzgerüst und mit einem Walzenwechseiwagen nach Anspruch 1 , gekennzeichnet durch die folgenden Schritte: - der Walzenwechseiwagen (1) steht in der Warteposition,3. A method for exchanging the backup rolls after removing the work rolls in a roll stand and with a roll changer according to claim 1, characterized by the following steps: - the roller change carriage (1) is in the waiting position,
- der Ausziehwagen (3) wird an den Walzenwechseiwagen angekoppelt durch den Wechselzyiinder (4) werden der Walzenwechseiwagen (2) und der Ausziehwagen (3) gemeinsam in Richtung Walzgerüst (1) verschoben,- The pull-out carriage (3) is coupled to the roller changing carriage by the changing cylinder (4), the roller changing carriage (2) and the pull-out carriage (3) are moved together in the direction of the roll stand (1),
- der Ausziehwagen (3) wird mit der unteren auszutauschenden Stützwalze (9) verbunden,- The pull-out carriage (3) is connected to the lower support roller (9) to be replaced,
- der Ausziehwagen (3) und der Walzenwechseiwagen (2) werden gemeinsam durch den Wechselzyiinder vom Walzgerüst wegbewegt, wodurch die untere Stützwalze in eine Wechselposition seitlich neben dem Walzgerüst gebracht wird,- The pull-out carriage (3) and the roller changing carriage (2) are moved together by the changing cylinder away from the roll stand, as a result of which the lower support roll is brought into a change position laterally next to the roll stand,
- auf die untere Stützwalze wird ein Dummy aufgesetzt,,- a dummy is placed on the lower support roller ,,
- der Wechselzyiinder schiebt den Walzenwechseiwagen (2) mit dem Ausziehwagen (3) und der unteren Stützwalze mit aufgesetztem Dummy in das Walzgerüst zurück,- The changeable cylinder pushes the roller change carriage (2) with the pull-out carriage (3) and the lower back-up roll with the dummy in the roll stand,
- die obere Stützwalze wird auf den Dummy aufgelegt,- the upper support roller is placed on the dummy,
- der Wechselzyiinder zieht den Walzenwechseiwagen mit dem Ausziehwagen sowie den Stützwalzen aus dem Walzgerüst in die Wechselposition, wo der alte Stützwalzensatz mittels eines Kranes durch einen neuen Stützwaizensatz ausgetauscht wird, der dann in umgekehrter Schrittfolge in das Walzgerüst eingebracht wird. - The change cylinder pulls the roller change carriage with the pull-out carriage and the support rollers from the roll stand into the change position, where the old support roll set is replaced by a crane with a new support roll set, which is then inserted into the roll stand in reverse sequence.
PCT/DE2002/002809 2001-08-06 2002-07-26 Device for changing the work rolls and the back-up rolls of a strip mill WO2003015949A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US10/485,974 US20050000263A1 (en) 2001-08-06 2002-07-26 Device for changing the work rolls and the back-up rolls of a strip-mill
JP2003520494A JP2004538148A (en) 2001-08-06 2002-07-26 Apparatus for replacing work rolls and support rolls of a strip rolling mill
EP02754458A EP1414598A1 (en) 2001-08-06 2002-07-26 Device for changing the work rolls and the back-up rolls of a strip mill

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10138588A DE10138588A1 (en) 2001-08-06 2001-08-06 Device for exchanging the working and supporting rollers of a rolling mill comprises an exchanging cylinder, a withdrawing car, and a cross-displacement table arranged in the car which can slide through a displacement cylinder
DE10138588.9 2001-08-06

Publications (1)

Publication Number Publication Date
WO2003015949A1 true WO2003015949A1 (en) 2003-02-27

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US (1) US20050000263A1 (en)
EP (1) EP1414598A1 (en)
JP (1) JP2004538148A (en)
CN (1) CN1498141A (en)
DE (1) DE10138588A1 (en)
RU (1) RU2004106601A (en)
WO (1) WO2003015949A1 (en)

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DE102007061027A1 (en) 2006-12-28 2008-07-03 Sms Demag Ag Method for deploying set of working rolls from frame with locomotive arranged in roll changing hole under plant floor, involves coupling used set of working rolls on locomotive
WO2011018215A1 (en) 2009-08-14 2011-02-17 Sms Siemag Ag Device for handling and/or transporting rolls of a roll stand
DE202018003699U1 (en) 2018-08-09 2019-11-14 Sms Group Gmbh Device for changing support rolls on a roll stand
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CN112062039A (en) * 2020-09-24 2020-12-11 桂林橡胶设计院有限公司 Frock is changed to roller shell of calender
CN112756400B (en) * 2021-01-19 2024-07-26 中冶京诚工程技术有限公司 Roll changing device of four-high mill

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CN100415399C (en) * 2004-02-18 2008-09-03 Sms迪马格股份公司 Method and device for exchanging sets of rolls in rolling frames of a rolling mill
WO2005089972A1 (en) * 2004-02-18 2005-09-29 Sms Demag Ag Method and device for exchanging sets of rolls in rolling frames of a rolling mill
US8522590B2 (en) 2006-01-09 2013-09-03 Sms Siemag Aktiengesellschaft Method and device for changing rolls
WO2007080086A1 (en) * 2006-01-09 2007-07-19 Sms Demag Ag Method and device for changing rolls
US8555688B2 (en) 2006-01-09 2013-10-15 Sms Siemag Aktiengesellschaft Method and device for changing rolls
US8201431B2 (en) 2006-01-09 2012-06-19 Sms Siemag Aktiengesellschaft Method and device for handling/transporting working rolls and/or support rolls
US8522591B2 (en) 2006-01-09 2013-09-03 Sms Siemag Aktiengesellschaft Device for changing/transporting rolls
US8511127B2 (en) 2006-01-09 2013-08-20 Sms Siemag Aktiengesellschaft Method and device for changing rolls
DE102007061027A1 (en) 2006-12-28 2008-07-03 Sms Demag Ag Method for deploying set of working rolls from frame with locomotive arranged in roll changing hole under plant floor, involves coupling used set of working rolls on locomotive
WO2011018215A1 (en) 2009-08-14 2011-02-17 Sms Siemag Ag Device for handling and/or transporting rolls of a roll stand
CN102574175A (en) * 2009-08-14 2012-07-11 Sms西马格股份公司 Device for handling and/or transporting rolls of a roll stand
DE102009037665A1 (en) 2009-08-14 2011-02-17 Sms Siemag Ag Device for handling and / or transporting rolls of a roll stand
US9061334B2 (en) 2009-08-14 2015-06-23 Sms Siemag Aktiengesellschaft Device for handling and/or transporting rolls of a roll stand
EP3590616A1 (en) 2018-07-03 2020-01-08 SMS Group GmbH Method and device for changing millers on a milling frame
DE102018210889A1 (en) 2018-07-03 2020-01-23 Sms Group Gmbh Method and device for changing support rolls on a roll stand
DE202018003699U1 (en) 2018-08-09 2019-11-14 Sms Group Gmbh Device for changing support rolls on a roll stand

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CN1498141A (en) 2004-05-19
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US20050000263A1 (en) 2005-01-06
RU2004106601A (en) 2005-06-10

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