EP3450039B1 - Media coupling for a rolling mill chock - Google Patents

Media coupling for a rolling mill chock Download PDF

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Publication number
EP3450039B1
EP3450039B1 EP18189748.9A EP18189748A EP3450039B1 EP 3450039 B1 EP3450039 B1 EP 3450039B1 EP 18189748 A EP18189748 A EP 18189748A EP 3450039 B1 EP3450039 B1 EP 3450039B1
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EP
European Patent Office
Prior art keywords
coupling
roll
media
locking device
coupling part
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EP18189748.9A
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German (de)
French (fr)
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EP3450039A1 (en
Inventor
Axel Dipl.-Ing. Barten
Harald Schlag
Nikolai PONAMAREV
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Achenbach Buschhetten GmbH and Co KG
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Achenbach Buschhetten GmbH and Co KG
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Publication of EP3450039A1 publication Critical patent/EP3450039A1/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
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • 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
    • B21B31/07—Adaptation of roll neck 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
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts

Definitions

  • the present invention relates to a media coupling according to the preamble of the claim, as it is from DE 197 57 456 A1 is known.
  • Roll stands are usually designed as four-high or six-high roll stands.
  • the rolls are handled as a structural assembly unit together with the roll chocks
  • Replacement of work rolls during a Shift work may be required.
  • Each roll replacement requires the media connections to be disconnected and reconnected, although technical solutions are now known so that the associated coupling process no longer has to be carried out manually by the operating staff, but devices are available that enable an automatic coupling process due to appropriately designed media couplings.
  • a media coupling is known that enables the media connections to be coupled to the roll chock by means of an actuator that is performed transversely to the roll axes before positioning the roll chocks in the roll stand or before removing the roll chocks from the roll stand.
  • the EP 0 947 255 A1 shows a media coupling in which, for coupling media connections, a coupling part is paired with a coupling part formed on the roller chock by an infeed movement performed by an actuator in the direction of the roller axis.
  • the two aforementioned versions of media couplings have in common that the coupling movement is carried out by an actuator which is installed as an additional actuator in addition to the actuators required to operate the rolling mill. This not only results in additional equipment expense, but also the need to provide a control of the actuator that ensures that the coupling process takes place at a defined point in time, for example when the roll chocks are positioned in the roll stand after a roll exchange.
  • a media coupling which is actuated coupled with a locking device for locking a roll chock in a roll stand.
  • the vertical distance between the media coupling and the locking element of the locking device cannot be changed.
  • the DE 85 32 752 U1 also shows a media coupling actuated by means of a locking device for locking a roll chock in a roll stand, the vertical distance between the media coupling and the locking element of the locking device also being unchangeable here.
  • the object of the present invention is to enable a vertical relative movement with respect to the locking element when the media coupling is closed.
  • the media coupling according to the invention has the features of claim 1.
  • a locking device provided on the roll stand which is used to lock, i.e. fix the roll chocks in the roll stand, is used not only to execute the locking movement, but also to execute a coupling movement between the first coupling part and the second coupling part.
  • the second coupling part acts with an actuator to execute the coupling movement between the first coupling part and the second coupling part together, which is formed by an actuator of the locking device.
  • an actuating gear for executing the coupling movement is formed at least in part from an actuating gear of the locking device, so that not only can a common drive be used to actuate the locking device and execute the coupling movement, but also reduce the cost of designing an adjusting gear for executing the coupling movement can be.
  • the second coupling part has at least one coupling element intended for pairing with a mating coupling element of the first coupling part, which is connected to a locking element of the locking device, in such a way that when the locking element is transferred into a locking position, a pairing between the coupling element and the mating coupling element is inevitably established , the actuating gear for performing the coupling movement, including the locking element formed on the actuating gear of the locking device, can be formed completely from the actuating gear of the locking device.
  • the coupling element of the second coupling part is arranged on a coupling element carrier, which is vertically displaceable on a vertical guide connected to the locking element, so that despite the connection of the coupling element to the locking element, a relative movement of the coupling element is possible due to the vertical degree of freedom in order to achieve a vertical movement when the media coupling is closed Feed movement of the roller chock to set a defined roll gap between opposing work rolls.
  • the vertical guide is preferably provided with a locking device that defines the coupling element carrier in a defined manner
  • the coupling element carrier is used to arrange a plurality of coupling elements which, in their relative arrangement, correspond to a plurality of on a mating coupling carrier are arranged on the roller chock arranged mating coupling elements.
  • the coupling elements and the corresponding mating coupling elements can be designed differently according to the different media, so that the media coupling is not only used to establish a connection between oil lines that allow an oil supply to the roller bearings, but can also be used to connect electrical lines or signal lines.
  • the media coupling is a central coupling which connects all the external feed lines required for the operation of the rolling mill with lines arranged on the rolling mill.
  • a media coupling 12 arranged between a roll chock 10 of a work roll 14 and a roll stand 11 is shown, which in the present case supplies oil to a roll bearing formed in the roll chock 10, not shown here made possible, which is used to support a roll neck 13 of the work roll 14.
  • Figs. 2 to 4 only a pair of work rolls with two work rolls 14 is shown, each of which is mounted with its roll neck 13 in roll chocks 10.
  • the pair of work rolls is located between two backup rolls, not shown here, which, like work rolls 14, are arranged with their roll journals in roll chocks 10;
  • the work rolls 14 are located between intermediate rolls which are each arranged between a work roll and a backup roll.
  • the intermediate rolls are arranged with their roll journals in intermediate roll chocks.
  • the roller chocks 10 are located in the in Fig. 2 illustrated working position of the work rolls 14 to form a roll gap 15 in a working position.
  • the in Fig. 2 media coupling 12 shown in its closed position, in which a coupling engagement is formed between a first coupling part 16 arranged on the roll chock 10 and a second coupling part 17 arranged on the roll stand 11, such that coupling elements 18, 19 formed on the second coupling part 17, in the present case as Coupling plugs are designed to engage in mating coupling elements 20, 21 of the first coupling part 16 designed as coupling sockets.
  • the coupling elements 18, 19 and mating coupling elements 20, 21 are designed as line connection pieces to which lines (not shown here) connect which, for example, enable an oil supply to the roller bearings, such that, for example, by pairing the coupling element 18 with the mating coupling element 20, an oil supply 22 and by pairing the mating coupling element 21 with the coupling element 19, an oil return 23 is made possible.
  • a locking device 24 is arranged on the roll stand 11, which has as essential components an actuator 25, here designed as a hydraulic cylinder, and a locking element 27 connected to the actuator 25 via an actuating gear 26, which is in a Fig. 1 locking position shown, in which the locking element 27 engages in a locking latch 28 formed as a vertical groove on the roll chock 10, which secures the axial position of the work roll 14 in the roll stand 11.
  • the locking element 27 is removed from the latch 28 by actuating the actuator 25, so that the work roller 14 can then be removed from the roller stand 11 in the axial direction in order to carry out a roller change to be able to.
  • a new work roll 14 is axially inserted into the roll stand 11 in such a way that the roll chock 10 is again in the position shown in FIG Fig. 1 position shown is received in a stator window 29 of the roll stand and the locking element 27 is moved back into its locking position by actuation of the actuator 25.
  • the second coupling part 17 has a coupling element carrier 30 for the arrangement of the coupling elements 18, 19, which is connected to the actuating gear 26 of the locking device 24 via a gear element 31, which is rigid in the present case.
  • the coupling element carrier 30 is connected directly to the locking element 27 of the locking device 24 via the gear element 31 connected.
  • a coupling movement between the first coupling part 16 and the second coupling part 17 takes place synchronously with a locking movement of the locking device 24, which is effected by the actuator 25, during which, simultaneously with the engagement movement of the locking element 27 in the latch 28, an engagement movement of the coupling elements 18, 19 into the counter-coupling elements 20, 21 arranged on a counter-coupling carrier 36. Also synchronously with an unlocking movement in which the locking element 27 of the locking device 24 is moved out of the latch 28, there is a decoupling movement between the first coupling part 16 and the second coupling part 17, in which the coupling elements 18, 19 are moved out of the mating coupling elements 20, 21 .
  • a vertical guide 32 is formed between the coupling element carrier 30 and the gear element 31 such that, as in a comparison of the Fig. 2 and 3 It becomes clear that the coupling element carrier 30 with the coupling elements 18, 19 arranged thereon can follow a vertical movement of the roller chock 10 in the stand window 29 of the roller stand 11 without the connection between the coupling element carrier 30 and the actuating gear 26 of the locking device 24 being released.
  • Fig. 3 shows that in Fig. 2 Roll chock 10 arranged in the working position in a roll change position in which the work rolls 14 are moved into a defined vertical position and in which, as already mentioned above, the work rolls are exchanged.
  • the roller chock 10 is unlocked by actuating the actuator 25, that is, the locking element 27 is moved out of the locking latch 28.
  • a locking cylinder arranged on the gear element 31 and acting as a locking device 33 is inserted with a locking bolt 34 through a guide slot 35 of the vertical guide 32 into a bolt opening 37 of the coupling element carrier 30 so that the coupling element carrier 30 is fixed in its vertical relative position with respect to the gear element 31 and thus also with respect to the locking element 27 of the locking device 24. Only then is there an unlocking movement of the locking element 27 into the in Fig. 4 Unlocking position shown, the coupling parts 16, 17 being decoupled at the same time, so that the roller chock 10 arranged in the roller change position can be removed from the stator window 28 in the axial direction.
  • the locking device 33 thus ensures that after the coupling parts 16, 18 have been decoupled, the second coupling part 17 remains in a position from which it can be paired again with the first coupling part 16 with a horizontal coupling movement after the roller has been changed.

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

Description

Die vorliegende Erfindung betrifft eine Medienkupplung gemäß dem Oberbegriff des Anspruchs, wie sie aus der DE 197 57 456 A1 bekannt ist.The present invention relates to a media coupling according to the preamble of the claim, as it is from DE 197 57 456 A1 is known.

Zum Betrieb von in einem Walzgerüst angeordneten Walzen sind diese mit ihren Walzenzapfen in Walzeneinbaustücken gelagert, die insbesondere zur Ölversorgung der Lager mit Medienanschlüssen versehen sind. Walzgerüste werden in der Regel als Quarto- oder Sexto-Walzgerüste ausgeführt. Zum Austausch der Arbeits- und Stützwalzen eines Quarto-Walzgerüstes oder der Arbeits-, Stütz- und Zwischenwalzen eines Sexto-Walzgerüstes werden die Walzen als bauliche Montageeinheit zusammen mit den Walzeneinbaustücken gehandhabt, wobei insbesondere im Fall der Arbeitswalzen aufgrund des im Walzbetrieb erfolgenden Verschleißes ein mehrfacher Austausch der Arbeitswalzen während eines Schichtbetriebs erforderlich werden kann. Jeder Walzenaustausch bedingt ein Abtrennen und Wiederanschließen der Medienanschlüsse, wobei zwar inzwischen technische Lösungen bekannt sind, so dass ein hiermit verbundener Kupplungsvorgang vom Bedienpersonal nicht mehr manuell durchgeführt werden muss, sondern Vorrichtungen zur Verfügung stehen, die aufgrund entsprechend ausgebildeter Medienkupplungen einen automatischen Kupplungsvorgang ermöglichen.For the operation of rolls arranged in a roll stand, these are mounted with their roll journals in roll chocks which are provided with media connections, in particular for supplying oil to the bearings. Roll stands are usually designed as four-high or six-high roll stands. To replace the work and back-up rolls of a four-high roll stand or the work, back-up and intermediate rolls of a six-high roll stand, the rolls are handled as a structural assembly unit together with the roll chocks Replacement of work rolls during a Shift work may be required. Each roll replacement requires the media connections to be disconnected and reconnected, although technical solutions are now known so that the associated coupling process no longer has to be carried out manually by the operating staff, but devices are available that enable an automatic coupling process due to appropriately designed media couplings.

So ist beispielsweise aus der DE 102 18 393 A1 eine Medienkupplung bekannt, die vor der Positionierung der Walzeneinbaustücke im Walzenständer oder vor der Entfernung der Walzeneinbaustücke aus dem Walzenständer ein Ankoppeln der Medienanschlüsse an das Walzeneinbaustück durch eine mittels eines Aktuators ausgeführte Zustellbewegung ermöglicht, die quer zu den Walzenachsen erfolgt.For example, from the DE 102 18 393 A1 a media coupling is known that enables the media connections to be coupled to the roll chock by means of an actuator that is performed transversely to the roll axes before positioning the roll chocks in the roll stand or before removing the roll chocks from the roll stand.

Die EP 0 947 255 A1 zeigt eine Medienkupplung, bei der zur Ankupplung von Medienanschlüssen ein Kupplungsteil durch eine von einem Aktuator ausgeführte Zustellbewegung in Walzenachsenrichtung mit einem am Walzeneinbaustück ausgebildeten Kupplungsteil gepaart wird.The EP 0 947 255 A1 shows a media coupling in which, for coupling media connections, a coupling part is paired with a coupling part formed on the roller chock by an infeed movement performed by an actuator in the direction of the roller axis.

Den beiden vorgenannten Ausführungen von Medienkupplungen ist gemeinsam, dass die Kupplungsbewegung jeweils von einem Aktuator ausgeführt wird, der als zusätzliches Stellglied neben den ohnehin für den Betrieb des Walzwerks erforderlichen Stellgliedern installiert ist. Hieraus ergibt sich nicht nur ein zusätzlicher apparativer Aufwand, sondern darüber hinaus auch die Notwendigkeit, eine Ansteuerung des Stellgliedes bereitzustellen, die sicherstellt, dass der Kupplungsvorgang zu einem definierten Zeitpunkt erfolgt, also etwa dann, wenn die Walzeneinbaustücke nach einem Walzentausch im Walzenständer positioniert sind.The two aforementioned versions of media couplings have in common that the coupling movement is carried out by an actuator which is installed as an additional actuator in addition to the actuators required to operate the rolling mill. This not only results in additional equipment expense, but also the need to provide a control of the actuator that ensures that the coupling process takes place at a defined point in time, for example when the roll chocks are positioned in the roll stand after a roll exchange.

Aus der DE 197 57 456 A1 ist eine Medienkupplung bekannt, die gekoppelt mit einer Verriegelungseinrichtung zur Verriegelung eines Walzeneinbaustücks in einem Walzenständer betätigt wird. Bei der bekannten Medienkupplung ist der vertikale Abstand zwischen der Medienkupplung und dem Riegelelement der Verriegelungseinrichtung unveränderbar.From the DE 197 57 456 A1 a media coupling is known which is actuated coupled with a locking device for locking a roll chock in a roll stand. With the known Media coupling, the vertical distance between the media coupling and the locking element of the locking device cannot be changed.

Die DE 85 32 752 U1 zeigt ebenfalls eine mittels einer Verriegelungseinrichtung zur Verriegelung eines Walzeneinbaustücks in einem Walzenständer betätigte Medienkupplung, wobei auch hier der vertikale Abstand zwischen der Medienkupplung und dem Riegelelement der Verriegelungseinrichtung unveränderbar ist.The DE 85 32 752 U1 also shows a media coupling actuated by means of a locking device for locking a roll chock in a roll stand, the vertical distance between the media coupling and the locking element of the locking device also being unchangeable here.

Aufgabe der vorliegenden Erfindung ist es, bei geschlossener Medienkupplung eine vertikale Relativbewegung gegenüber dem Riegelelement zu ermöglichen.The object of the present invention is to enable a vertical relative movement with respect to the locking element when the media coupling is closed.

Zur Lösung dieser Aufgabe weist die erfindungsgemäße Medienkupplung die Merkmale des Anspruchs 1 auf.To achieve this object, the media coupling according to the invention has the features of claim 1.

Erfindungsgemäß wird eine am Walzenständer vorgesehene Verriegelungseinrichtung, die zur Verriegelung, also Fixierung der Walzeneinbaustücke im Walzenständer dient, nicht nur zur Ausführung der Verriegelungsbewegung verwendet, sondern auch zur Ausführung einer Kopplungsbewegung zwischen dem ersten Kupplungsteil und dem zweiten Kupplungsteil.According to the invention, a locking device provided on the roll stand, which is used to lock, i.e. fix the roll chocks in the roll stand, is used not only to execute the locking movement, but also to execute a coupling movement between the first coupling part and the second coupling part.

Hieraus ergibt sich nicht nur der Vorteil, dass zur Ausführung der Kopplungsbewegung ein ohnehin am Walzenständer bereits vorhandener Aktuator verwendet wird, sondern auch der weitere Vorteil, dass aufgrund der Verwendung ein und desselben Antriebs für die Verriegelung und die Ausführung der Kupplungsbewegung eine absolute Synchronität der Vorgänge gegeben ist, sodass eine gesonderte Ansteuerung für die Ausführung der Kopplungsbewegung nicht notwendig ist.This results not only in the advantage that an actuator that is already present on the roll stand is used to perform the coupling movement, but also the further advantage that, due to the use of one and the same drive for locking and executing the coupling movement, the processes are absolutely synchronized is given, so that a separate control for the execution of the coupling movement is not necessary.

Erfindungsgemäß wirkt der zweite Kupplungsteil zur Ausführung der Kopplungsbewegung zwischen dem ersten Kupplungsteil und dem zweiten Kupplungsteil mit einem Aktuator
zusammen, der durch einen Aktuator der Verriegelungseinrichtung gebildet ist.According to the invention, the second coupling part acts with an actuator to execute the coupling movement between the first coupling part and the second coupling part
together, which is formed by an actuator of the locking device.

Erfindungsgemäß ist ein Stellgetriebe zur Ausführung der Kopplungsbewegung zumindest anteilig aus einem Stellgetriebe der Verriegelungseinrichtung gebildet, sodass nicht nur ein gemeinsamer Antrieb zur Betätigung der Verriegelungseinrichtung und Ausführung der Kopplungsbewegung verwendbar ist, sondern darüber hinaus auch der Aufwand zur Ausbildung eines Stellgetriebes für die Ausführung der Kopplungsbewegung reduziert werden kann.According to the invention, an actuating gear for executing the coupling movement is formed at least in part from an actuating gear of the locking device, so that not only can a common drive be used to actuate the locking device and execute the coupling movement, but also reduce the cost of designing an adjusting gear for executing the coupling movement can be.

Erfindungsgemäß weist der zweite Kupplungsteil zumindest ein zur Paarung mit einem Gegenkupplungselement des ersten Kupplungsteils bestimmtes Kupplungselement auf, das mit einem Riegelelement der Verriegelungseinrichtung verbunden ist, derart, dass bei einer Überführung des Riegelelements in eine Verriegelungsstellung zwangsläufig eine Paarung zwischen dem Kupplungselement und dem Gegenkupplungselement hergestellt wird, kann das Stellgetriebe zur Ausführung der Kopplungsbewegung einschließlich des am Stellgetriebe der Verriegelungseinrichtung ausgebildeten Riegelelements vollständig aus dem Stellgetriebe der Verriegelungseinrichtung gebildet sein.According to the invention, the second coupling part has at least one coupling element intended for pairing with a mating coupling element of the first coupling part, which is connected to a locking element of the locking device, in such a way that when the locking element is transferred into a locking position, a pairing between the coupling element and the mating coupling element is inevitably established , the actuating gear for performing the coupling movement, including the locking element formed on the actuating gear of the locking device, can be formed completely from the actuating gear of the locking device.

Erfindungsgemäß ist das Kupplungselement des zweiten Kupplungsteils an einem Kupplungselementträger angeordnet, der vertikal verschiebbar an einer mit dem Riegelelement verbundenen Vertikalführung angeordnet ist, sodass trotz Verbindung des Kupplungselements mit dem Riegelelement aufgrund des vertikalen Freiheitsgrades eine Relativbewegung des Kupplungselements möglich ist, um bei geschlossener Medienkupplung eine vertikale Zustellbewegung des Walzeneinbaustücks zur Einstellung eines definierten Walzspaltes zwischen einander gegenüberliegenden Arbeitswalzen zu ermöglichen.According to the invention, the coupling element of the second coupling part is arranged on a coupling element carrier, which is vertically displaceable on a vertical guide connected to the locking element, so that despite the connection of the coupling element to the locking element, a relative movement of the coupling element is possible due to the vertical degree of freedom in order to achieve a vertical movement when the media coupling is closed Feed movement of the roller chock to set a defined roll gap between opposing work rolls.

Vorzugsweise ist die Vertikalführung mit einer Arretiervorrichtung versehen, die den Kupplungselementträger in einer definiertenThe vertical guide is preferably provided with a locking device that defines the coupling element carrier in a defined manner

Relativposition an der Vertikalführung fixiert, sodass der zweite Kupplungsteil in einer Walzenwechselposition fixierbar ist, um nach Austausch einer mit dem Walzeneinbaustück versehenen Walze allein mittels einer horizontalen Schließbewegung der Verriegelungseinrichtung wieder in seine dem geschlossenen Zustand der Medienkupplung entsprechende Position überführt werden zu können.Fixed relative position on the vertical guide, so that the second coupling part can be fixed in a roll change position in order to be able to return to its position corresponding to the closed state of the media coupling simply by means of a horizontal closing movement of the locking device after a roll provided with the roll chock has been replaced.

Um die Medienkupplung zur Ausbildung von Medienkreisläufen und/oder zur Ausbildung von Medienanschlüssen für unterschiedliche Medien verwenden zu können, erweist es sich als vorteilhaft, wenn der Kupplungselementträger zur Anordnung einer Mehrzahl von Kupplungselementen dient, die in ihrer Relativanordnung übereinstimmend mit einer Mehrzahl von an einem Gegenkupplungsträger am Walzeneinbaustück angeordneten Gegenkupplungselementen angeordnet sind. Insbesondere können dabei die Kupplungselemente sowie die entsprechenden Gegenkupplungselemente entsprechend den unterschiedlichen Medien unterschiedlich ausgebildet sein, sodass die Medienkupplung nicht nur zur Herstellung einer Verbindung zwischen Ölleitungen dient, die eine Ölversorgung der Walzenlager ermöglichen, sondern auch zur Verbindung elektrischer Leitungen oder Signalleitungen verwendbar ist. Damit besteht insbesondere die Möglichkeit, die Medienkupplung als zentrale Kupplung auszugestalten, die sämtliche für den Betrieb des Walzwerks erforderliche externe Zuleitungen mit am Walzwerk angeordneten Leitungen verbindet.In order to be able to use the media coupling to form media circuits and / or to form media connections for different media, it proves to be advantageous if the coupling element carrier is used to arrange a plurality of coupling elements which, in their relative arrangement, correspond to a plurality of on a mating coupling carrier are arranged on the roller chock arranged mating coupling elements. In particular, can the coupling elements and the corresponding mating coupling elements can be designed differently according to the different media, so that the media coupling is not only used to establish a connection between oil lines that allow an oil supply to the roller bearings, but can also be used to connect electrical lines or signal lines. There is thus in particular the possibility of designing the media coupling as a central coupling which connects all the external feed lines required for the operation of the rolling mill with lines arranged on the rolling mill.

Nachfolgend wird eine bevorzugte Ausführungsform der Erfindung anhand der Zeichnungen näher erläutert.A preferred embodiment of the invention is explained in more detail below with reference to the drawings.

Es zeigen:

Fig. 1
eine Ausführung einer zwischen einem Walzeneinbaustück und einem Walzenständer angeordneten Medienkupplung in Draufsicht;
Fig. 2
die in Fig. 1 dargestellte Medienkupplung in Seitenansicht mit in Arbeitsstellung im Walzenständer angeordneten Arbeitswalzen des;
Fig. 3
die in Fig. 2 in Schließstellung dargestellte Medienkupplung in Walzenwechselposition der Arbeitswalzen;
Fig. 4
die in Fig. 3 dargestellte Medienkupplung in Öffnungsstellung vor Entnahme der Arbeitswalzen aus dem Walzenständer.
Show it:
Fig. 1
an embodiment of a media coupling arranged between a roll chock and a roll stand in a top view;
Fig. 2
in the Fig. 1 Media coupling shown in side view with the work rolls arranged in the work position in the roll stand;
Fig. 3
in the Fig. 2 Media coupling shown in the closed position in the roll change position of the work rolls;
Fig. 4
in the Fig. 3 Media coupling shown in the open position before removing the work rolls from the roll stand.

In den Fig. 1 und 2 ist eine zwischen einem Walzeneinbaustück 10 einer Arbeitswalze 14 und einem Walzenständer 11 angeordnete Medienkupplung 12 dargestellt, die im vorliegenden Fall die Ölversorgung eines hier nicht näher dargestellten, im Walzeneinbaustück 10 ausgebildeten Walzenlagers ermöglicht, das zur Lagerung eines Walzenzapfens 13 der Arbeitswalze 14 dient.In the Figs. 1 and 2 a media coupling 12 arranged between a roll chock 10 of a work roll 14 and a roll stand 11 is shown, which in the present case supplies oil to a roll bearing formed in the roll chock 10, not shown here made possible, which is used to support a roll neck 13 of the work roll 14.

Aus Gründen der vereinfachten Darstellung ist in den Fig. 2 bis 4 lediglich eine Arbeitswalzenpaarung mit zwei Arbeitswalzen 14 dargestellt, die jeweils mit ihren Walzenzapfen 13 in Walzeneinbaustücken 10 gelagert sind. Tatsächlich befindet sich die Arbeitswalzenpaarung bei einem Quarto-Walzgerüst zwischen zwei hier nicht näher dargestellten Stützwalzen, die wie die Arbeitswalzen 14 mit ihren Walzenzapfen in Walzeneinbaustücken 10 angeordnet sind; bei einem Sexto-Walzgerüst befinden sich die Arbeitswalzen 14 zwischen Zwischenwalzen, die jeweils zwischen einer Arbeitswalze und einer Stützwalze angeordnet sind. Die Zwischenwalzen sind dabei mit ihren Walzenzapfen in Zwischenwalzeneinbaustücken angeordnet.For the sake of simplicity, the Figs. 2 to 4 only a pair of work rolls with two work rolls 14 is shown, each of which is mounted with its roll neck 13 in roll chocks 10. In fact, in a four-high roll stand, the pair of work rolls is located between two backup rolls, not shown here, which, like work rolls 14, are arranged with their roll journals in roll chocks 10; in a six-high roll stand, the work rolls 14 are located between intermediate rolls which are each arranged between a work roll and a backup roll. The intermediate rolls are arranged with their roll journals in intermediate roll chocks.

Die Walzeneinbaustücke 10 befinden sich in der in Fig. 2 dargestellten Arbeitsstellung der Arbeitswalzen 14 zur Ausbildung eines Walzspalts 15 in einer Arbeitsstellung. In der Arbeitsstellung der Arbeitswalzen 14 befindet sich die in Fig. 2 dargestellte Medienkupplung 12 in ihrer Schließstellung, in der zwischen einem ersten am Walzeneinbaustück 10 angeordneten Kupplungsteil 16 und einem zweiten am Walzenständer 11 angeordneten Kupplungsteil 17 ein Kupplungseingriff ausgebildet ist, derart, dass am zweiten Kupplungsteil 17 ausgebildete Kupplungselemente 18, 19, die im vorliegenden Fall als Kupplungsstecker ausgebildet sind, in als Kupplungsbuchsen ausgebildete Gegenkupplungselemente 20, 21 des ersten Kupplungsteils 16 eingreifen.The roller chocks 10 are located in the in Fig. 2 illustrated working position of the work rolls 14 to form a roll gap 15 in a working position. In the working position of the work rolls 14 is the in Fig. 2 media coupling 12 shown in its closed position, in which a coupling engagement is formed between a first coupling part 16 arranged on the roll chock 10 and a second coupling part 17 arranged on the roll stand 11, such that coupling elements 18, 19 formed on the second coupling part 17, in the present case as Coupling plugs are designed to engage in mating coupling elements 20, 21 of the first coupling part 16 designed as coupling sockets.

Die Kupplungselemente 18, 19 und Gegenkupplungselemente 20, 21 sind als Leitungsanschlussstücke ausgebildet, an die hier nicht näher dargestellte Leitungen anschließen, welche beispielsweise eine Ölversorgung der Walzenlager ermöglichen, derart, dass etwa durch die Paarung des Kupplungselements 18 mit dem Gegenkupplungselement 20 eine Ölzufuhr 22 und durch die Paarung des Gegenkupplungselements 21 mit dem Kupplungselement 19 ein Ölrückfluss 23 ermöglicht wird.The coupling elements 18, 19 and mating coupling elements 20, 21 are designed as line connection pieces to which lines (not shown here) connect which, for example, enable an oil supply to the roller bearings, such that, for example, by pairing the coupling element 18 with the mating coupling element 20, an oil supply 22 and by pairing the mating coupling element 21 with the coupling element 19, an oil return 23 is made possible.

Wie aus einer Zusammenschau der Fig. 1 und 2 deutlich wird, ist an dem Walzenständer 11 eine Verriegelungseinrichtung 24 angeordnet, die als wesentliche Bestandteile einen, hier als Hydraulikzylinder ausgebildeten Aktuator 25 sowie ein über ein Stellgetriebe 26 mit dem Aktuator 25 verbundenes Riegelelement 27 aufweist, das in einer in Fig. 1 dargestellten Verriegelungsposition, in der das Riegelelement 27 in eine am Walzeneinbaustück 10 als vertikale Nut ausgebildete Riegelfalle 28 eingreift, die die axiale Position der Arbeitswalze 14 im Walzenständer 11 sichert.As if from a synopsis of the Figs. 1 and 2 becomes clear, a locking device 24 is arranged on the roll stand 11, which has as essential components an actuator 25, here designed as a hydraulic cylinder, and a locking element 27 connected to the actuator 25 via an actuating gear 26, which is in a Fig. 1 locking position shown, in which the locking element 27 engages in a locking latch 28 formed as a vertical groove on the roll chock 10, which secures the axial position of the work roll 14 in the roll stand 11.

Um eine Entnahme der in Fig. 1 in der Arbeitsstellung im Walzenständer 11 aufgenommenen Stützwalze 14 aus dem Walzenständer 11 zu ermöglichen, wird das Riegelelement 27 mittels Betätigung des Aktuators 25 aus der Riegelfalle 28 entfernt, sodass anschließend die Arbeitswalze 14 in axialer Richtung dem Walzenständer 11 entnommen werden kann, um einen Walzenwechsel durchführen zu können. Hierzu wird nach erfolgter Entnahme eine neue Arbeitswalze 14 axial in den Walzenständer 11 eingeführt, derart, dass das Walzeneinbaustück 10 wieder in der in Fig. 1 dargestellten Position in einem Ständerfenster 29 des Walzenständers aufgenommen wird und das Riegelelement 27 durch Betätigung des Aktuators 25 wieder in seine Verriegelungsposition überführt wird.In order to remove the in Fig. 1 To enable the support roller 14 from the roller stand 11, which is received in the roller stand 11 in the working position, the locking element 27 is removed from the latch 28 by actuating the actuator 25, so that the work roller 14 can then be removed from the roller stand 11 in the axial direction in order to carry out a roller change to be able to. For this purpose, after removal, a new work roll 14 is axially inserted into the roll stand 11 in such a way that the roll chock 10 is again in the position shown in FIG Fig. 1 position shown is received in a stator window 29 of the roll stand and the locking element 27 is moved back into its locking position by actuation of the actuator 25.

Nach erfolgter Verriegelung werden die Arbeitswalzen 14 zur Einstellung des gewünschten Walzspaltes 15 aus der Walzenwechselposition wieder in ihre in Fig. 2 dargestellte Arbeitsstellung überführt, wobei die Walzeneinbaustücke 10 in den Ständerfenstern 29 vertikal gegenüber den Riegelelementen 27 bewegt werden.After locking, the work rolls 14 to set the desired roll gap 15 from the roll change position back into their in Fig. 2 The working position shown is transferred, the roller chocks 10 being moved vertically with respect to the locking elements 27 in the stator windows 29.

Wie weiter aus einer Zusammenschau der Fig. 1 und 2 deutlich wird, weist der zweite Kupplungsteil 17 zur Anordnung der Kupplungselemente 18, 19 einen Kupplungselementträger 30 auf, der über ein im vorliegenden Fall starr ausgebildetes Getriebeelement 31 an das Stellgetriebe 26 der Verriegelungseinrichtung 24 angeschlossen ist. Im vorliegenden Fall ist hierzu der Kupplungselementträger 30 über das Getriebeelement 31 direkt mit dem Riegelelement 27 der Verriegelungseinrichtung 24 verbunden. Als Folge hiervon erfolgt synchron mit einer Verriegelungsbewegung der Verriegelungseinrichtung 24, die durch den Aktuator 25 bewirkt wird, eine Kopplungsbewegung zwischen dem ersten Kupplungsteil 16 und dem zweiten Kupplungsteil 17, bei der gleichzeitig mit der Eingriffsbewegung des Riegelelements 27 in die Riegelfalle 28 eine Eingriffsbewegung der Kupplungselemente 18, 19 in die an einem Gegenkupplungsträger 36 angeordneten Gegenkupplungselemente 20, 21 erfolgt. Ebenfalls synchron erfolgt bei einer Entriegelungsbewegung, bei der das Riegelelement 27 der Verriegelungseinrichtung 24 aus der Riegelfalle 28 herausbewegt wird, eine Entkopplungsbewegung zwischen dem ersten Kupplungsteil 16 und dem zweiten Kupplungsteil 17, bei der die Kupplungselemente 18, 19 aus den Gegenkupplungselementen 20, 21 herausbewegt werden.How further from a synopsis of the Figs. 1 and 2 As becomes clear, the second coupling part 17 has a coupling element carrier 30 for the arrangement of the coupling elements 18, 19, which is connected to the actuating gear 26 of the locking device 24 via a gear element 31, which is rigid in the present case. In the present case, the coupling element carrier 30 is connected directly to the locking element 27 of the locking device 24 via the gear element 31 connected. As a result, a coupling movement between the first coupling part 16 and the second coupling part 17 takes place synchronously with a locking movement of the locking device 24, which is effected by the actuator 25, during which, simultaneously with the engagement movement of the locking element 27 in the latch 28, an engagement movement of the coupling elements 18, 19 into the counter-coupling elements 20, 21 arranged on a counter-coupling carrier 36. Also synchronously with an unlocking movement in which the locking element 27 of the locking device 24 is moved out of the latch 28, there is a decoupling movement between the first coupling part 16 and the second coupling part 17, in which the coupling elements 18, 19 are moved out of the mating coupling elements 20, 21 .

Zwischen dem Kupplungselementträger 30 und dem Getriebeelement 31 ist eine Vertikalführung 32 ausgebildet, derart, dass wie bei einem Vergleich der Fig. 2 und 3 deutlich wird, der Kupplungselementträger 30 mit den daran angeordneten Kupplungselementen 18, 19 einer Vertikalbewegung des Walzeneinbaustücks 10 im Ständerfenster 29 des Walzenständers 11 folgen kann, ohne dass die Verbindung zwischen dem Kupplungselementträger 30 und dem Stellgetriebe 26 der Verriegelungseinrichtung 24 gelöst wird.A vertical guide 32 is formed between the coupling element carrier 30 and the gear element 31 such that, as in a comparison of the Fig. 2 and 3 It becomes clear that the coupling element carrier 30 with the coupling elements 18, 19 arranged thereon can follow a vertical movement of the roller chock 10 in the stand window 29 of the roller stand 11 without the connection between the coupling element carrier 30 and the actuating gear 26 of the locking device 24 being released.

Fig. 3 zeigt das in Fig. 2 in der Arbeitsstellung angeordnete Walzeneinbaustück 10 in einer Walzenwechselposition, in der die Arbeitswalzen 14 in eine definierte vertikale Position verfahren sind und in der, wie bereits vorstehend erwähnt, ein Austausch der Arbeitswalzen erfolgt. Hierzu wird das Walzeneinbaustück 10 durch Betätigung des Aktuators 25 entriegelt, also das Riegelelement 27 aus der Riegelfalle 28 herausbewegt. Bevor die Entriegelung des Walzeneinbaustücks 10 erfolgt, wird ein am Getriebeelement 31 angeordneter, als Arretiereinrichtung 33 wirkender Schließzylinder mit einem Schließbolzen 34 durch einen Führungsschlitz 35 der Vertikalführung 32 hindurch in eine Riegelöffnung 37 des Kupplungselementträgers 30 verfahren, sodass der Kupplungselementträger 30 in seiner vertikalen Relativposition gegenüber dem Getriebeelement 31 und somit ebenfalls gegenüber dem Riegelelement 27 der Verriegelungseinrichtung 24 fixiert ist. Erst anschließend erfolgt eine Entriegelungsbewegung des Riegelelements 27 in die in Fig. 4 dargestellte Entriegelungsposition, wobei gleichzeitig eine Entkopplung der Kupplungsteile 16, 17 erfolgt, sodass das in der Walzenwechselposition angeordnete Walzeneinbaustück 10 in axialer Richtung dem Ständerfenster 28 entnommen werden kann. Fig. 3 shows that in Fig. 2 Roll chock 10 arranged in the working position in a roll change position in which the work rolls 14 are moved into a defined vertical position and in which, as already mentioned above, the work rolls are exchanged. For this purpose, the roller chock 10 is unlocked by actuating the actuator 25, that is, the locking element 27 is moved out of the locking latch 28. Before the roller chock 10 is unlocked, a locking cylinder arranged on the gear element 31 and acting as a locking device 33 is inserted with a locking bolt 34 through a guide slot 35 of the vertical guide 32 into a bolt opening 37 of the coupling element carrier 30 so that the coupling element carrier 30 is fixed in its vertical relative position with respect to the gear element 31 and thus also with respect to the locking element 27 of the locking device 24. Only then is there an unlocking movement of the locking element 27 into the in Fig. 4 Unlocking position shown, the coupling parts 16, 17 being decoupled at the same time, so that the roller chock 10 arranged in the roller change position can be removed from the stator window 28 in the axial direction.

Die Arretiereinrichtung 33 stellt somit sicher, dass nach der Entkopplung der Kupplungsteile 16, 18 der zweite Kupplungsteil 17 in einer Position verbleibt, aus der dieser nach erfolgtem Walzenwechsel wieder mit einer horizontalen Kopplungsbewegung mit dem ersten Kupplungsteil 16 gepaart werden kann.The locking device 33 thus ensures that after the coupling parts 16, 18 have been decoupled, the second coupling part 17 remains in a position from which it can be paired again with the first coupling part 16 with a horizontal coupling movement after the roller has been changed.

Claims (3)

  1. A media coupling (12) on a roll chock (10) lockable in a roll stand (11) by means of a locking device (24), the media coupling (12) having a first coupling part (16) disposed on the roll chock (10) and a second coupling part (17) disposed on the roll stand (11), the second coupling part (17) serving to connect an external media line to a media line realized on the roll chock (10), the locking device (24) of the roll chock (10) serving to execute a coupling movement between the first coupling part (16) and the second coupling part (17), the second coupling part interacting with an actuator (25) in order to execute the coupling movement between the first coupling part (16) and the second coupling part (17), the actuator (25) being formed by an actuator of the locking device (24), an actuation mechanism for executing the coupling movement being formed, at least in part, by an actuation mechanism (26) of the locking device (24), the second coupling part (17) having at least one coupling element (18, 19) intended for mating with a mating coupling element (20, 21) of the first coupling part (16), the coupling element (18, 19) being connected to a latch element (27) of the locking device (24) in such a manner that when the latch element (27) is moved into a locking position, the coupling element (18, 19) and the mating coupling element (20, 21) inevitably mate,
    characterized in that
    the coupling element (18, 19) of the second coupling part (17) is disposed on a coupling element support (30) which is disposed in a vertically displaceable manner on a vertical guide (32) connected to the latch element (27).
  2. The media coupling according to claim 1,
    characterized in that
    the vertical guide (32) is provided with a fixing device (33) fixing the coupling element support (30) in a defined relative position on the vertical guide (32).
  3. The media coupling according to claim 1 or 2,
    characterized in that
    the coupling element support (30) serves to dispose a plurality of coupling elements (18, 19) disposed in a manner corresponding, in terms of their relative position, to a plurality of mating coupling elements (20, 21) disposed on a mating coupling support (36) on the roll chock (10).
EP18189748.9A 2017-08-30 2018-08-20 Media coupling for a rolling mill chock Active EP3450039B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202017105219.2U DE202017105219U1 (en) 2017-08-30 2017-08-30 Media coupling for a roll chock

Publications (2)

Publication Number Publication Date
EP3450039A1 EP3450039A1 (en) 2019-03-06
EP3450039B1 true EP3450039B1 (en) 2020-10-28

Family

ID=60163135

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18189748.9A Active EP3450039B1 (en) 2017-08-30 2018-08-20 Media coupling for a rolling mill chock

Country Status (2)

Country Link
EP (1) EP3450039B1 (en)
DE (1) DE202017105219U1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8532752U1 (en) * 1985-11-21 1986-01-02 SMS Schloemann-Siemag AG, 4000 Düsseldorf Coupling device for pressure medium lines on roll stands
DE19757456B4 (en) * 1997-12-23 2006-06-14 Sms Demag Ag Chock for a roller bearing
DE29806132U1 (en) 1998-04-03 1998-09-17 SMS Schloemann-Siemag AG, 40237 Düsseldorf Device for coupling and uncoupling the media feed line on the bearing chocks of rollers, in particular support rollers, which are guided in roller stands
DE10218393A1 (en) 2002-04-24 2003-11-06 Sms Demag Ag Media coupling for roll stands

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3450039A1 (en) 2019-03-06
DE202017105219U1 (en) 2017-10-10

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