EP1951453A1 - Method and device for changing/transporting rolls - Google Patents

Method and device for changing/transporting rolls

Info

Publication number
EP1951453A1
EP1951453A1 EP07711324A EP07711324A EP1951453A1 EP 1951453 A1 EP1951453 A1 EP 1951453A1 EP 07711324 A EP07711324 A EP 07711324A EP 07711324 A EP07711324 A EP 07711324A EP 1951453 A1 EP1951453 A1 EP 1951453A1
Authority
EP
European Patent Office
Prior art keywords
roll
rolls
changing
rollers
rolling
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.)
Granted
Application number
EP07711324A
Other languages
German (de)
French (fr)
Other versions
EP1951453B1 (en
Inventor
Gerhard Blecher
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 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
Priority claimed from DE200610001316 external-priority patent/DE102006001316A1/en
Priority claimed from DE200610030934 external-priority patent/DE102006030934A1/en
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1951453A1 publication Critical patent/EP1951453A1/en
Application granted granted Critical
Publication of EP1951453B1 publication Critical patent/EP1951453B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing
    • Y10T29/49721—Repairing with disassembling
    • Y10T29/4973—Replacing of defective part
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T483/00—Tool changing
    • Y10T483/17—Tool changing including machine tool or component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T483/00—Tool changing
    • Y10T483/17—Tool changing including machine tool or component
    • Y10T483/1733—Rotary spindle machine tool [e.g., milling machine, boring, machine, grinding machine, etc.]
    • Y10T483/1748—Tool changer between spindle and matrix
    • Y10T483/1783—Tool changer between spindle and matrix including linearly translatable tool changer [e.g., shuttle, ram, etc.]

Definitions

  • the invention relates to a method and a device for changing / transporting a first set of rollers and a second set of rollers on a displacement platform and a displacement platform.
  • a device for the change of pairs of work rolls and / or pairs of support rollers on rolling stands wherein the support rollers and the work rolls are each guided in raised or lowered chocks in the stand frame, the pair of work rolls supported on the chocks a Geradschubantriebs is extendable.
  • the pair of support rollers can be extended or retracted by means of a lower support roller supported on a guide track and wheels and a roller change-over chair supported thereon with an upper support roller supported on it.
  • the pair of work rolls on the drive side of the roll stand with a dimensioned for the expansion or the installation path in the stroke length hydraulic piston-cylinder drive can be coupled and disengaged in the Ausfahrabstand.
  • a retracted in the altitude between the support rollers roll changing chair to the same piston-cylinder drive can be coupled and after supporting the upper support roller and the roll changing chair on the lower support roller extendable or retractable the backup roller pair.
  • a corresponding method is known from this.
  • WO 2004/039 512 A1 discloses a tractor, with which roller sets are pulled into a roller workshop WW or driven back therefrom. The tractor is moved by gears of the tractor engage in racks.
  • WO 03/015 949 A1 discloses a device for changing the working and support rollers of a strip rolling mill, wherein the roller change carriage, which can be displaced transversely to the rolling stand, receives the withdrawn old roller sets and makes replacement with new roller sets possible.
  • the device consists of a stationary arranged on Wilsontenflurière change cylinder, the piston rod is transversely to the rolling stand and extendable, a Ausziehwagen, which is arranged at the front end of the piston rod of the change cylinder, slidably on the roll change carriage and coupled with this, that the Ausziehwagen to - Is slid transversely to the roll stand together with the roll changing car through the change cylinder.
  • a roller change carriage arranged in the transverse displacement table, which is displaceable transversely to the direction of movement of the roller change carriage by a roll changing car independent displacement cylinder and through which the exchanged roller sets in and out of the frame center aligned (n) change position can be brought. Furthermore, an associated method will be described.
  • WO 2005/089 972 A1 describes a method for changing sets of rolls in rolling mills of a rolling mill having a plurality of rolling mills, which each have supporting and work roll sets, by supporting one another and then extending in the axial direction of a set of work rolls or a support roller set on the operator side in a roller workshop and subsequent retraction and installation of new sets of rollers.
  • the number of separate transverse transfer cars transported on the operator side of the number of rolling mills are transported on a single connecting track following one another by a single locomotive into the roller workshop, from where the work roll sets are returned and at alternating distances to the respective transverse transfer carriage be set between the rolling stands and that after releasing the operator side by the cross slide each after a developed worn Häwalzen- set the worn support roller sets extended and brought by crane in the roller workshop, maintained, transported back and re-installed in the associated rolling stands. Further described is an associated device.
  • the invention has for its object to propose a flexible method for changing / transporting the sets of rollers in the rolling hall at device complexity and a device for performing the method according to the invention.
  • the invention also relates to a device for carrying out the method according to the invention.
  • the device is designed as a displacement platform, wherein the displacement platform is designed to run on two rails arranged in parallel, in order to accommodate both the first, used set of work rolls and the second set of work rolls.
  • the sliding platform is guided and stored horizontally even after the span / cover the roll change pit.
  • the work roll changing device is located on the operating side of the rolling mill.
  • the task of the work roll changing device is to pull used work roll sets out of the roll stand and, for example, subsequently to transport them to the roll workshop or to transport the newly ground work roll sets from the roll shop to the rolling mill stand.
  • the transverse displacement of the sets of rolls is arranged in the roll hall in the region of the roll change pit.
  • the task of the transverse shift is to move the used set of work rolls pulled out of the roll stand so far out of the roll center / center roll change pit until the new work roll set can be positioned in the roll center.
  • the sliding platform consists of a steel structure with the same sliding strips as on the platforms.
  • the sliding platform is designed so that two sets of work rolls - a used and a new set of rolls - can be positioned on it.
  • a hydraulic cylinder moves the sliding platform to the desired position.
  • the relocation platform itself is rail-bound. and runs in a preferred embodiment on a total of twelve rollers, which are each held in double-row thrust bearings.
  • the sliding platform according to the invention consists of a simple bridge and can be due to the rollers, by means of the hydraulic cylinder, drive laterally from the roll change pit at each backup roll change to release the entire width of the roll change pit.
  • the support roller set or the support rollers with the chocks can be transported without interference by the displacement platform by means of a locomotive from the rolling stand through the roll change pit in the rolling hall in the roll workshop. An assembly and removal of the sliding platform by the hall crane is eliminated. Furthermore, no space for the storage of the sliding platform in the rolling hall is needed. This leads to a high time savings.
  • Fig. 1 in cross section a rolling hall with a rolling mill and one of them separated by a wall roller workshop;
  • Fig. 2 as a detail a sliding platform in the rolling hall
  • Fig. 5 in plan view, the sliding platform in the right position for pulling out a support roller set.
  • a rolling hall 1 in the rolling direction and on the right side of a rolling mill 2 is shown on the left side. Both areas are separated by a wall 3.
  • a rolling mill 4 an upper and a lower support roller 5, 6 and an upper and a lower work roll 7, 8 are arranged.
  • a locomotive 9 is used for transport from the roll stand 4 in the rolling hall 2 into the roll workshop 2, for example, to reground the rolls.
  • a locomotive 9 is used for transport from the roll stand 4 in the rolling hall 2 into the roll workshop 2, for example, to reground the rolls.
  • This is located in a roll change pit 10, which connects the rolling hall 1 and the roll workshop 2. All devices such as rails, etc. are built on a foundation or several foundations11. The locomotive 9 can thus be moved from a waiting position 12 at the right end of the roll changing pit 10 to the rolling mill 4.
  • the roll change pit 10 is divided into a lower narrow area 16 and an upper wide area 17.
  • the lower narrow region 16 is only marginally wider than the locomotive 9.
  • the upper wide region 17 has platforms 20 at its two edges 18, 19. These are folded down when pulling or transporting a set of work rolls 7, 8 and have at their top guide rails 21 on which the set of work rolls 7, 8 can be moved.
  • the platforms 20 have a spacing which allows a coupling device 14 attached to the locomotive 9 on the upper side 13 to pass through. For transporting the larger diameter support roll set 5, 6, the platforms 20 are folded up, thus widening the passage.
  • FIG. 2 shows such a device.
  • the device also referred to as side shifting, provides that the removed set of work rolls, consisting of the work rolls 7, 8, and a new set of work rolls 22 can be arranged parallel to one another on a transverse displacement platform 23.
  • the removed work roll set is on the left side.
  • the displacement platform 23 rests on the right and left edges of the roll change pit 10.
  • a hydraulic cylinder 28 is used with push rod 25.
  • the displacement platform 23 is moved by means of several rollers 24 on rails 26.
  • FIG. 2B shows the position of the displacement platform 23 in which the new work roll set 22 can be inserted into the rolling stand 4.
  • the roll change pit 10 In order to subsequently pull the support roller set, consisting of the support rollers 5, 6, out of the roll stand 4 with the locomotive 9, the roll change pit 10 must be cleared. For this purpose, as explained above, the platforms 20 are raised. Furthermore, the displacement platform 23 is moved so far to the right, see Figure 3A, 3B that the left edge 27 of the transverse displacement platform 23, the roller change pit 10 completely free. Due to the design of the displacement platform 23 with a plurality of rollers 24 and a corresponding length, it can rest in the transition region only on one side.
  • FIG. 4 shows a plan view of the constellation in which the displacement platform 23 covers the roll change pit 10.
  • the displacement platform 23 is in the position in which the roller change pit 10 for the extraction of the support roller set 5, 6 is cleared.
  • the platforms 20 with the rails still have to be raised or folded up.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

The invention relates to a method for changing rolls, in particular, working rolls and/or intermediate rolls in a roll stand, such as a roughing down stand or finishing stand for rolling thick sheet iron. Said rolls comprise back up roller sets and working roller sets. One individual locomotive mechanism is used for changing the working rolls and/or for changing the back up rolls and/or for inserting or withdrawing a roll changing seat by supporting the rolls on each other and subsequently withdrawing in the axial direction of the rolls on the operational side of the roll stand, from a roll hall in a roll workshop and back and for installing novel roll sets. The invention also relates to a device for carrying out said method.

Description

Verfahren und Vorrichtung zum Wechseln / Transportieren von WalzenMethod and device for changing / transporting rolls
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Wechseln / Transportieren von einem ersten Walzensatz und von einem zweiten Walzensatz auf einer Verschiebeplattform sowie einer Verschiebeplattform.The invention relates to a method and a device for changing / transporting a first set of rollers and a second set of rollers on a displacement platform and a displacement platform.
Aus der WO 03 / 099 479 A1 ist eine Vorrichtung für den Wechsel von Arbeitswalzenpaaren und / oder von Stützwalzenpaaren an Walzgerüsten bekannt, wobei die Stützwalzen und die Arbeitswalzen jeweils in heb- oder senkbaren Einbaustücken im Ständerrahmen geführt sind, das Arbeitswalzenpaar auf den Einbaustücken aufgestützt mittels eines Geradschubantriebs ausfahrbar ist. Das Stützwalzenpaar ist mittels eines auf einer Führungsbahn und Rädern aufgestützten unteren Stützwalze und einem auf diesem aufgestützten Walzen- wechselstuhl mit aufgestützter oberer Stützwalze aus- oder einfahrbar. Dabei ist das Arbeitswalzenpaar auf der Antriebsseite des Walzgerüstes mit einem für den Ausbau- oder den Einbau-Weg in der Hublänge bemessenen hydraulischen Kolben-Zylinder-Antrieb kuppelbar und im Ausfahrabstand auskuppelbar. Weiterhin ist ein in der Höhenlage zwischen den Stützwalzen eingefahrener Walzenwechselstuhl an denselben Kolben-Zylinder-Antrieb ankuppelbar und nach Aufstützen der oberen Stützwalze und des Walzenwechselstuhls auf die untere Stützwalze das Stützwalzenpaar ausfahrbar oder wieder einfahrbar. Auch ein entsprechendes Verfahren ist hieraus bekannt.From WO 03/099 479 A1 a device for the change of pairs of work rolls and / or pairs of support rollers on rolling stands is known, wherein the support rollers and the work rolls are each guided in raised or lowered chocks in the stand frame, the pair of work rolls supported on the chocks a Geradschubantriebs is extendable. The pair of support rollers can be extended or retracted by means of a lower support roller supported on a guide track and wheels and a roller change-over chair supported thereon with an upper support roller supported on it. In this case, the pair of work rolls on the drive side of the roll stand with a dimensioned for the expansion or the installation path in the stroke length hydraulic piston-cylinder drive can be coupled and disengaged in the Ausfahrabstand. Furthermore, a retracted in the altitude between the support rollers roll changing chair to the same piston-cylinder drive can be coupled and after supporting the upper support roller and the roll changing chair on the lower support roller extendable or retractable the backup roller pair. A corresponding method is known from this.
Aus der WO 2004 / 039 512 A1 ist eine Zugmaschine bekannt, mit der Walzensätze in eine Walzenwerkstatt WW gezogen bzw. von dort wieder zurück gefahren werden. Die Zugmaschine wird verfahren, indem Zahnräder der Zugmaschine in Zahnstangen eingreifen.WO 2004/039 512 A1 discloses a tractor, with which roller sets are pulled into a roller workshop WW or driven back therefrom. The tractor is moved by gears of the tractor engage in racks.
Aus der DE 43 21 663 A1 ist ein Walzwerk mit auf der Bedienseite der Gerüste vorgesehenen jeweils auf Wagen abgestützten und quer zu den Walzenachsen verschiebbarensupportplatten bekannt, die mit mindestens zwei nebeneinander angeordneten, zur Aufnahme von auf Rollen gelagerten Arbeitswalzensätzen vorgesehenen Schienenpaaren ausgestattet sind, und mit jeweils den Gerüsten vorgeordneten Gruben, deren Grund mit Ausfahrschienen für Stützwalzensätzen ausgestattet sind. Dabei sind die Gruben zwischen den Gerüsten und den Supportplatten in einer die Länge jeweils von einer in ihrer Ausgangsstellung fixierbaren und zum Stützwalzenwechsel aus dieser heraus verschwenkbaren Klappen überfangen sind, und dass die Klappen jeweils mit einer das Ausfahren von Arbeitswalzensätzen und überführen derselben auf eine der Gleispaare der ihm zugeordneten jeweiligen Supportplatten ausgestattet ist.From DE 43 21 663 A1 discloses a rolling mill with provided on the operating side of the scaffolds supported on each carriage and transverse to the roll axes slidable support plates are known, which are provided with at least two juxtaposed, provided for receiving mounted on rollers sets of work rolls rail pairs, and with each of the scaffolds upstream pits, the bottom of which are equipped with Ausfahrschienen for support roller sets. In this case, the pits between the stands and the support plates in a length of each of a fixed in its initial position and the support roll change out of this are pivotable flaps are covered, and that the flaps each with an extension of sets of work rolls and convict them on one of the track pairs its associated respective support plates is equipped.
Aus der WO 03 / 015 949 A1 ist eine Einrichtung zum Wechseln der Arbeitsund Stützwalzen eines Bandwalzwerkes bekannt, wobei mittels eines quer zum Walzgerüst verschiebbaren Walzewechselwagens, der die herausgezogenen alten Walzensätze aufnimmt und den Austausch gegen neue Walzensätze er- möglicht wird. Die Einrichtung besteht aus einem ortsfest auf Hüttenflurhöhe angeordneten Wechselzylinder, dessen Kolbenstange quer zum Walzgerüst ein- und ausfahrbar ist, einem Ausziehwagen, der am vorderen Ende der Kolbenstange des Wechselzylinders angeordnet, auf dem Walzenwechselwagen verschiebbar und mit diesem derart koppelbar ist, dass der Ausziehwagen zu- sammen mit dem Walzenwechselwagen durch den Wechselzylinder quer zum Walzgerüst verschiebbar ist. Weiterhin einen im Walzenwechselwagen 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) Wechselposition bringbar sind. Weiterhin wird ein dazugehörendes Verfahren beschrieben.WO 03/015 949 A1 discloses a device for changing the working and support rollers of a strip rolling mill, wherein the roller change carriage, which can be displaced transversely to the rolling stand, receives the withdrawn old roller sets and makes replacement with new roller sets possible. The device consists of a stationary arranged on Hüttenflurhöhe change cylinder, the piston rod is transversely to the rolling stand and extendable, a Ausziehwagen, which is arranged at the front end of the piston rod of the change cylinder, slidably on the roll change carriage and coupled with this, that the Ausziehwagen to - Is slid transversely to the roll stand together with the roll changing car through the change cylinder. Furthermore, a roller change carriage arranged in the transverse displacement table, which is displaceable transversely to the direction of movement of the roller change carriage by a roll changing car independent displacement cylinder and through which the exchanged roller sets in and out of the frame center aligned (n) change position can be brought. Furthermore, an associated method will be described.
WO 2005 / 089 972 A1 beschreibt ein Verfahren zum Wechseln von Walzensätzen in Walzgerüsten einer Walzstraße mit mehreren Walzgerüsten, die jeweils Stütz- und Arbeitswalzensätze aufweisen, durch Aufeinanderstützen und anschließendem Ausfahren in Achsrichtung eines Arbeitswalzensatzes oder eines Stützwalzensatzes auf der Bedienerseite in eine Walzenwerkstatt und anschließendem Zurückfahren und Einbauen neuer Walzensätze. Dabei werden die von einer auf der Bedienerseite der Anzahl der Walzgerüste entsprechenden Anzahl von separaten Querverschiebewagen transportierten, verschlissenen Arbeitswalzensätze auf einem einzigen Verbindungsgleis aufeinan- der folgend durch eine einzige Lokomotive in die Walzenwerkstatt verbracht und von dort die Arbeitswalzensätze zurückgefahren und in Wechselabständen auf den jeweiligen Querverschiebewagen zwischen den Walzgerüsten abgesetzt werden und dass nach Freigeben der Bedienerseite durch die Querverschiebewagen jeweils nach einem ausgebauten verschlissenen Arbeitswalzen- satz die verschlissenen Stützwalzensätze ausgefahren und per Kran in die Walzenwerkstatt gebracht, gewartet, zurück transportiert und in die zugeordneten Walzgerüste wieder eingebaut werden. Weiterhin beschrieben ist eine dazugehörende Einrichtung.WO 2005/089 972 A1 describes a method for changing sets of rolls in rolling mills of a rolling mill having a plurality of rolling mills, which each have supporting and work roll sets, by supporting one another and then extending in the axial direction of a set of work rolls or a support roller set on the operator side in a roller workshop and subsequent retraction and installation of new sets of rollers. In this case, the number of separate transverse transfer cars transported on the operator side of the number of rolling mills are transported on a single connecting track following one another by a single locomotive into the roller workshop, from where the work roll sets are returned and at alternating distances to the respective transverse transfer carriage be set between the rolling stands and that after releasing the operator side by the cross slide each after a developed worn Arbeitswalzen- set the worn support roller sets extended and brought by crane in the roller workshop, maintained, transported back and re-installed in the associated rolling stands. Further described is an associated device.
Der Erfindung liegt die Aufgabe zugrunde, bei vorrichtungstechnisch geringem Aufwand ein flexibles Verfahren zum Wechseln / Transportieren der Walzensätze in der Walzhalle vorzuschlagen und eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens.The invention has for its object to propose a flexible method for changing / transporting the sets of rollers in the rolling hall at device complexity and a device for performing the method according to the invention.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass bei einem Verfahren gemäß dem Oberbegriff von Anspruch 1 beim Wechseln / Transportieren des ersten und des zweiten Walzensatzes die Verschiebeplattform eine Walzenwechselgrube vollständig überspannt / abdeckt. Beim Herausziehen des gebrauchten Arbeitswalzensatzes aus dem Walzgerüst auf die Verschiebeplatt- form, auf der bereits ein neuer Arbeitswalzensatz angeordnet ist, liegt die Verschiebeplattform auf beiden Seiten der Walzenwechselgrube auf Schienen auf, wodurch ein Verkanten / Verkippen der Verschiebeplattform verhindert wird.This object is achieved in that in a method according to the preamble of claim 1 when changing / transporting the first and second set of rollers, the displacement platform completely spans / covers a roll change pit. When pulling out the used set of work rolls from the rolling mill on the Verschiebeplatt- form on which a new set of work rolls is already arranged, the sliding platform is on both sides of the roll change pit on rails, whereby tilting / tilting of the sliding platform is prevented.
Weitere Ausgestaltungen des Verfahrens ergeben sich aus den diesbezügli- chen Unteransprüchen. Die Erfindung betrifft außerdem eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens. Erfindungsgemäß ist die Vorrichtung als Verschiebeplattform ausgebildet, wobei die Verschiebeplattform auf zwei parallel angeordneten Schienen fahrend ausgebildet ist, um sowohl den ersten, gebrauchten Arbeitswalzensatz wie auch den zweiten neuen Arbeitswalzensatz aufzuneh- men. Durch eine Anordnung von Laufschienen auf beiden Seiten der Walzenwechselgrube wird die Verschiebeplattform auch nach dem überspannen / abdecken der Walzenwechselgrube genau geführt und horizontal gelagert.Further embodiments of the method will become apparent from the dependent claims. The invention also relates to a device for carrying out the method according to the invention. According to the invention, the device is designed as a displacement platform, wherein the displacement platform is designed to run on two rails arranged in parallel, in order to accommodate both the first, used set of work rolls and the second set of work rolls. By an arrangement of rails on both sides of the roll change pit, the sliding platform is guided and stored horizontally even after the span / cover the roll change pit.
Weitere Ausgestaltungen der Vorrichtung ergeben sich aus den diesbezügli- chen Unteransprüchen.Further embodiments of the device will become apparent from the dependent claims.
Die Arbeitswalzenwechselvorrichtung befindet sich auf der Bedienungsseite der Walzanlage. Die Aufgaben der Arbeitswalzen - Wechselvorrichtung besteht darin, gebrauchte Arbeitswalzensätze aus dem Walzgerüst zu ziehen und bei- spielsweise anschließend bis in die Walzenwerkstatt zu transportieren oder die neu geschliffenen Arbeitswalzensätze aus der Walzenwerkstatt bis in das Walzgerüst zu transportieren.The work roll changing device is located on the operating side of the rolling mill. The task of the work roll changing device is to pull used work roll sets out of the roll stand and, for example, subsequently to transport them to the roll workshop or to transport the newly ground work roll sets from the roll shop to the rolling mill stand.
Die Querverschiebung der Walzensätze, auch Side-shifting genannt, ist in der Walzenhalle im Bereich der Walzenwechselgrube angeordnet. Aufgabe der Querverschiebung ist es, den gebrauchten, aus dem Walzgerüst gezogenen Arbeitswalzensatz so weit aus der Walzmitte / Mitte Walzenwechselgrube zu verschieben, bis der neue Arbeitswalzensatz in Walzmitte positioniert werden kann.The transverse displacement of the sets of rolls, also called side-shifting, is arranged in the roll hall in the region of the roll change pit. The task of the transverse shift is to move the used set of work rolls pulled out of the roll stand so far out of the roll center / center roll change pit until the new work roll set can be positioned in the roll center.
Die Verschiebeplattform besteht aus einer Stahlkonstruktion mit gleichen Gleitleisten wie bei den Plattformen. Die Verschiebeplattform ist so konstruiert, dass zwei Arbeitswalzensätze - ein gebrauchter und ein neuer Walzensatz - darauf positioniert werden können. Ein Hydraulikzylinder fährt die Verschiebeplattform in die gewünschte Position. Die Verschiebeplattform selbst ist schienengebun- den und läuft in einer bevorzugten Ausführung auf insgesamt zwölf Laufrollen, die jeweils in zweireihigen Axiallagern gehalten werden.The sliding platform consists of a steel structure with the same sliding strips as on the platforms. The sliding platform is designed so that two sets of work rolls - a used and a new set of rolls - can be positioned on it. A hydraulic cylinder moves the sliding platform to the desired position. The relocation platform itself is rail-bound. and runs in a preferred embodiment on a total of twelve rollers, which are each held in double-row thrust bearings.
Die Verschiebeplattform besteht erfindungsgemäß aus einer einfachen Brücke und lässt sich wegen der Laufrollen, mittels des Hydraulikzylinders, bei jedem Stützwalzenwechsel seitlich aus der Walzenwechselgrube fahren, um die gesamte Breite der Walzenwechselgrube freizugeben. Der Stützwalzensatz bzw. die Stützwalzen mit den Einbaustücken können ohne Störung durch die Verschiebeplattform mittels einer Lokomotive aus dem Walzgerüst durch die Walzenwechselgrube in der Walzhalle in die Walzenwerkstatt transportiert werden. Ein Auf- und Abnehmen der Verschiebeplattform durch den Hallenkran entfällt. Weiterhin wird kein Platz für die Ablage der Verschiebeplattform in der Walzhalle benötigt. Dieses führt zu einer hohen Zeitersparnis.The sliding platform according to the invention consists of a simple bridge and can be due to the rollers, by means of the hydraulic cylinder, drive laterally from the roll change pit at each backup roll change to release the entire width of the roll change pit. The support roller set or the support rollers with the chocks can be transported without interference by the displacement platform by means of a locomotive from the rolling stand through the roll change pit in the rolling hall in the roll workshop. An assembly and removal of the sliding platform by the hall crane is eliminated. Furthermore, no space for the storage of the sliding platform in the rolling hall is needed. This leads to a high time savings.
Beim Wechselwagen werden Zahnstangen mit Befestigungsmaterial und Pass- federn nicht mehr benötigt. Die aufwändige Bearbeitung für die Befestigung der Zahnstangen sowie die komplette Wechselwagen - Zentrierung entfällt.Racks with mounting material and feather keys are no longer needed on the change car. The elaborate machining for the attachment of the racks as well as the complete change carriage centering is eliminated.
Ein Ausführungsbeispiel der Erfindung wird anhand von sehr schematischen Zeichnungen näher beschrieben. Es zeigen:An embodiment of the invention will be described in more detail with reference to very schematic drawings. Show it:
Fig. 1 im Querschnitt eine Walzhalle mit einem Walzgerüst und einer davon durch eine Wand getrennte Walzenwerkstatt;Fig. 1 in cross section a rolling hall with a rolling mill and one of them separated by a wall roller workshop;
Fig. 2 als Einzelheit eine Verschiebeplattform in der Walzhalle;Fig. 2 as a detail a sliding platform in the rolling hall;
Fig. 3 die Verschiebeplattform mit offener Grube;3 shows the sliding platform with open pit;
Fig. 4 in Draufsicht die Verschiebeplattform beim Ausziehen desFig. 4 in plan view, the sliding platform when removing the
Arbeitswalzensatzes; und Fig. 5 in Draufsicht die Verschiebeplattform in rechter Position zum Herausziehen eines Stützwalzensatzes.Set of work rolls; and Fig. 5 in plan view, the sliding platform in the right position for pulling out a support roller set.
In Figur 1 ist auf der linken Seite eine Walzhalle 1 in Walzrichtung und auf der rechten Seite eine Walzenwerkstatt 2 dargestellt. Beide Bereiche sind durch eine Wand 3 getrennt. In einem Walzgerüst 4 sind eine obere und eine untere Stützwalze 5, 6 sowie eine obere und eine untere Arbeitswalze 7, 8 angeordnet. Zum Transport aus dem Walzgerüst 4 in der Walzhalle 2 in die Walzenwerkstatt 2, um beispielsweise die Walzen nachzuschleifen, wird eine Lokomotive 9 ver- wendet. Diese befindet sich in einer Walzenwechselgrube 10, die die Walzhalle 1 und die Walzenwerkstatt 2 verbindet. Sämtliche Vorrichtungen wie Schienen usw. sind auf einem Fundament bzw. mehreren Fundamenten11 aufgebaut. Die Lokomotive 9 kann somit aus einer Warteposition 12 am rechten Ende der Walzenwechselgrube 10 zum Walzgerüst 4 hin bewegt werden. In den Figuren 1A und 1 B ist im Querschnitt dargestellt, wie die Lokomotive 9 in der Walzenwechselgrube 10 angeordnet ist. Wie ersichtlich, ist die Walzenwechselgrube 10 in einen unteren schmalen Bereich 16 und einen oberen breiten Bereich 17 unterteilt. Der untere schmale Bereich 16 ist nur unwesentlich breiter als die Lokomotive 9. Der obere breite Bereich 17 weist an seinen beiden Rändern 18, 19 Plattformen 20 auf. Diese sind beim Herausziehen bzw. Transport eines Arbeitswalzensatzes 7, 8 heruntergeklappt und weisen an ihrer Oberseite Führungsschienen 21 auf, auf denen der Arbeitswalzensatz 7, 8 bewegt werden kann. Die Plattformen 20 weisen einen Abstand auf, der eine an der Lokomotive 9 an der Oberseite 13 angebrachte Kuppelvorrichtung 14 ein durchfahren er- möglicht. Zum Transportieren des im Durchmesser größeren Stützwalzensatzes 5, 6 werden die Plattformen 20 hochgeklappt und somit die Durchfahrt verbreitert.In Figure 1, a rolling hall 1 in the rolling direction and on the right side of a rolling mill 2 is shown on the left side. Both areas are separated by a wall 3. In a rolling mill 4, an upper and a lower support roller 5, 6 and an upper and a lower work roll 7, 8 are arranged. For transport from the roll stand 4 in the rolling hall 2 into the roll workshop 2, for example, to reground the rolls, a locomotive 9 is used. This is located in a roll change pit 10, which connects the rolling hall 1 and the roll workshop 2. All devices such as rails, etc. are built on a foundation or several foundations11. The locomotive 9 can thus be moved from a waiting position 12 at the right end of the roll changing pit 10 to the rolling mill 4. In the figures 1A and 1B is shown in cross-section how the locomotive 9 is arranged in the roll change pit 10. As can be seen, the roll change pit 10 is divided into a lower narrow area 16 and an upper wide area 17. The lower narrow region 16 is only marginally wider than the locomotive 9. The upper wide region 17 has platforms 20 at its two edges 18, 19. These are folded down when pulling or transporting a set of work rolls 7, 8 and have at their top guide rails 21 on which the set of work rolls 7, 8 can be moved. The platforms 20 have a spacing which allows a coupling device 14 attached to the locomotive 9 on the upper side 13 to pass through. For transporting the larger diameter support roll set 5, 6, the platforms 20 are folded up, thus widening the passage.
Der ausgebaute Arbeitswalzensatz 7, 8 wird durch einen neuen Arbeitswalzen- satz ersetzt. Dies erfolgt möglichst schnell, um die Stillstandszeiten des Walzgerüstes zu minimieren. Daher ist vorgesehen, dass der neue Arbeitswalzen- satz bereits in der Walzhalle 1 vorbereitet wird. In Figur 2 ist eine derartige Vorrichtung dargestellt. Die auch als Side Shifting bezeichnete Vorrichtung sieht vor, dass der ausgebaute Arbeitswalzensatz, bestehend aus den Arbeitswalzen 7, 8, und ein neuer Arbeitswalzensatz 22 parallel nebeneinander auf einer Querverschiebeplattform 23 angeordnet werden können. In Figur 2A befindet sich der ausgebaute Arbeitswalzensatz auf der linken Seite. Die Verschiebeplattform 23 liegt dabei auf dem rechten und linken Rand der Walzenwechselgrube 10 auf. Zum Verschieben wird beispielsweise ein Hydraulikzylinder 28 mit Schubstange 25 verwendet. Die Verschiebeplattform 23 wird mittels mehrerer Laufrollen 24 auf Schienen 26 verfahren. In Figur 2B ist die Position der Ver- Schiebeplattform 23 dargestellt, in der der neue Arbeitswalzensatz 22 in das Walzgerüst 4 eingeschoben werden kann.The removed work roll set 7, 8 is replaced by a new work roll set. This is done as quickly as possible to minimize downtime of the rolling stand. It is therefore foreseen that the new work roll already prepared in the rolling hall 1. FIG. 2 shows such a device. The device, also referred to as side shifting, provides that the removed set of work rolls, consisting of the work rolls 7, 8, and a new set of work rolls 22 can be arranged parallel to one another on a transverse displacement platform 23. In Figure 2A, the removed work roll set is on the left side. The displacement platform 23 rests on the right and left edges of the roll change pit 10. To move, for example, a hydraulic cylinder 28 is used with push rod 25. The displacement platform 23 is moved by means of several rollers 24 on rails 26. FIG. 2B shows the position of the displacement platform 23 in which the new work roll set 22 can be inserted into the rolling stand 4.
Um mit der Lokomotive 9 anschließend den Stützwalzensatz, bestehend aus den Stützwalzen 5, 6, aus dem Walzgerüst 4 zu ziehen, muss die Walzenwech- selgrube 10 frei gemacht werden. Hierzu werden, wie weiter oben erläutert, die Plattformen 20 hochgestellt. Des Weiteren wird die Verschiebeplattform 23 soweit nach rechts verfahren, siehe Figur 3A, 3B, dass der linke Rand 27 der Querverschiebeplattform 23 die Walzenwechselgrube 10 komplett freigibt. Durch die Gestaltung der Verschiebeplattform 23 mit mehreren Laufrollen 24 und einer entsprechenden Länge kann sie im Übergangsbereich nur auf einer Seite aufliegen.In order to subsequently pull the support roller set, consisting of the support rollers 5, 6, out of the roll stand 4 with the locomotive 9, the roll change pit 10 must be cleared. For this purpose, as explained above, the platforms 20 are raised. Furthermore, the displacement platform 23 is moved so far to the right, see Figure 3A, 3B that the left edge 27 of the transverse displacement platform 23, the roller change pit 10 completely free. Due to the design of the displacement platform 23 with a plurality of rollers 24 and a corresponding length, it can rest in the transition region only on one side.
Figur 4 zeigt in Draufsicht die Konstellation, in der die Verschiebeplattform 23 die Walzenwechselgrube 10 überdeckt. In Figur 5 befindet sich die Verschiebe- plattform 23 in der Position, in der die Walzenwechselgrube 10 für das Ausziehen des Stützwalzensatzes 5, 6 frei gemacht ist. Hierzu müssen die Plattformen 20 mit den Schienen noch hochgestellt bzw. hochgeklappt werden. BezugszeichenlisteFIG. 4 shows a plan view of the constellation in which the displacement platform 23 covers the roll change pit 10. In FIG. 5, the displacement platform 23 is in the position in which the roller change pit 10 for the extraction of the support roller set 5, 6 is cleared. For this purpose, the platforms 20 with the rails still have to be raised or folded up. LIST OF REFERENCE NUMBERS
1 Walzhalle1 rolling hall
2 Walzenwerkstatt2 roller workshop
3 Wand3 wall
4 Walzgerüst4 rolling stand
5 untere Stützwalze5 lower support roller
6 obere Stützwalze6 upper support roller
7 untere Arbeitswalze7 lower work roll
8 obere Arbeitswalze8 upper work roll
9 Lokomotive9 locomotive
10 Walzenwechselgrube10 roll change pit
11 Fundament11 foundation
12 Warteposition12 waiting position
13 Oberseite13 top
14 Kuppelvorrichtung14 coupling device
15 Schubstange15 push rod
16 schmaler Bereich16 narrow area
17 breiter Bereich17 wide range
18 Rand18 edge
19 Rand19 edge
20 Plattform20 platform
21 Führungsschiene21 guide rail
22 Arbeitswalzensatz22 work roll set
23 Verschiebeplattform23 shift platform
24 Laufrollen24 rollers
25 Schubstange25 push rod
26 Schiene26 rail
27 linker Rand27 left edge
28 Hydraulikzylinder 28 hydraulic cylinders

Claims

Patentansprüche claims
1. Verfahren zum Wechseln / Transportieren von einem ersten Walzensatz (7, 8) und von einem zweiten Walzensatz (22) auf einer Verschiebeplattform (23) im Bereich eines Walzgerüstes (4) in einer Walzhalle (1 ), in bzw. entgegen der Walzrichtung, dadurch gekennzeichnet, dass beim Wechseln / Transportieren des ersten und des zweiten WaI- zensatzes (7, 8, 22) die Verschiebeplattform (23) eine Walzenwechselgrube (10) vollständig überspannt / abdeckt.1. A method for changing / transporting a first set of rollers (7, 8) and a second set of rollers (22) on a sliding platform (23) in the region of a roll stand (4) in a rolling hall (1), in or against the rolling direction , characterized in that when changing / transporting the first and second Waiz- zensatzes (7, 8, 22), the sliding platform (23) completely spans / covers a roll change pit (10).
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass beim Herausfahren der Stützwalzen (5, 6) aus dem Walzgerüst (4) die Verschiebeplattform (23) die Walzenwechselgrube (10) vollständig freigibt.2. The method according to claim 1, characterized in that when moving out of the support rollers (5, 6) from the rolling stand (4), the sliding platform (23) the roll change pit (10) completely releases.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Verschiebeplattform (23) auf Schienen (26) verfahren wird, die identisch mit den Führungsschienen (21 ) der Plattformen (20) sind.3. The method according to claim 1 or 2, characterized in that the displacement platform (23) on rails (26) is moved, which are identical to the guide rails (21) of the platforms (20).
4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass die Verschiebeplattform (23) durch mindestens einen Hydraulikzylinder (28) mit Schubstange (25) verfahren wird.4. The method according to claim 3, characterized in that the displacement platform (23) by at least one hydraulic cylinder (28) with push rod (25) is moved.
5. Vorrichtung zur Durchführung eines Verfahrens gemäß den Ansprüchen 1 bis 4, dadurch gekennzeichnet, dass die Verschiebeplattform (23) auf zwei parallel angeordneten Schienen (26) fahrend ausgebildet ist.5. Apparatus for carrying out a method according to claims 1 to 4, characterized the sliding platform (23) is designed to ride on two rails (26) arranged in parallel.
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Verschiebeplattform (23) in zwei Reihen mit jeweils sechs Laufrollen (24) ausgebildet ist.6. Apparatus according to claim 5, characterized in that the displacement platform (23) is formed in two rows with six rollers (24).
7. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Laufrollen (24) in jeweils zweireihigen Axiallagern gehalten ausgebildet sind.7. The device according to claim 5, characterized in that the rollers (24) are formed in each held double row thrust bearings.
8. Vorrichtung nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass die Verschiebeplattform (23) als Stahlkonstruktion ausgebildet ist. 8. Device according to one of claims 5 to 7, characterized in that the displacement platform (23) is designed as a steel construction.
EP07711324A 2006-01-09 2007-01-09 Device for changing/transporting rolls Active EP1951453B1 (en)

Applications Claiming Priority (3)

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DE200610001316 DE102006001316A1 (en) 2006-01-09 2006-01-09 Method for exchanging working rollers and/or intermediate rollers in mill stands of a rolling mill comprises transporting working roller sets and/or support roller sets from the mill stand to the roller workshop and back using a locomotive
DE200610030934 DE102006030934A1 (en) 2006-07-05 2006-07-05 Method for changing working rolls and/or support rolls in a roll stand used in a plate rolling mill comprises using a single locomotive
PCT/EP2007/000112 WO2007080088A1 (en) 2006-01-09 2007-01-09 Method and device for changing/transporting rolls

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EP1951453A1 true EP1951453A1 (en) 2008-08-06
EP1951453B1 EP1951453B1 (en) 2009-04-01

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EP07702623A Active EP1951452B1 (en) 2006-01-09 2007-01-09 Method and device for changing rolls
EP07702628A Active EP1954416B1 (en) 2006-01-09 2007-01-09 Method and device for handling/transporting working rolls and/or support rolls

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EP (3) EP1951453B1 (en)
JP (3) JP5344928B2 (en)
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RU2008132868A (en) 2010-02-20
US8511127B2 (en) 2013-08-20
EP1951452A1 (en) 2008-08-06
WO2007080086A1 (en) 2007-07-19
DE502007000615D1 (en) 2009-05-28
KR20080081966A (en) 2008-09-10
KR101102907B1 (en) 2012-01-10
WO2007080091A1 (en) 2007-07-19
US20090019909A1 (en) 2009-01-22
US8522590B2 (en) 2013-09-03
US8522591B2 (en) 2013-09-03
US20090038363A1 (en) 2009-02-12
ATE428515T1 (en) 2009-05-15
CA2635081C (en) 2013-09-10
EP1954416B1 (en) 2009-04-15
DE502007000613D1 (en) 2009-05-28
RU2379143C1 (en) 2010-01-20
KR20080078875A (en) 2008-08-28
ATE428514T1 (en) 2009-05-15
KR20080077004A (en) 2008-08-20
JP5121721B2 (en) 2013-01-16
RU2394661C2 (en) 2010-07-20
US20120180284A1 (en) 2012-07-19
EP1954416A1 (en) 2008-08-13
KR101078258B1 (en) 2011-10-31
DE502007000562D1 (en) 2009-05-14
WO2007080088A1 (en) 2007-07-19
US20090044588A1 (en) 2009-02-19
US8201431B2 (en) 2012-06-19
JP4988763B2 (en) 2012-08-01
JP5344928B2 (en) 2013-11-20
EP1951452B1 (en) 2009-04-15
CA2635081A1 (en) 2007-07-19
KR101035234B1 (en) 2011-05-18
RU2378064C1 (en) 2010-01-10
JP2009518188A (en) 2009-05-07
JP2009522111A (en) 2009-06-11
WO2007080087A1 (en) 2007-07-19
US8555688B2 (en) 2013-10-15
EP1951453B1 (en) 2009-04-01
ATE427172T1 (en) 2009-04-15

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