EP2961541B1 - Reel for winding a metal strip - Google Patents

Reel for winding a metal strip Download PDF

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Publication number
EP2961541B1
EP2961541B1 EP14705139.5A EP14705139A EP2961541B1 EP 2961541 B1 EP2961541 B1 EP 2961541B1 EP 14705139 A EP14705139 A EP 14705139A EP 2961541 B1 EP2961541 B1 EP 2961541B1
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EP
European Patent Office
Prior art keywords
reel
reel according
shaft
bearing
mandrel shaft
Prior art date
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Application number
EP14705139.5A
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German (de)
French (fr)
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EP2961541A1 (en
Inventor
Pascal Ostheimer
Jürgen Schiefer
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Primetals Technologies Austria GmbH
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Primetals Technologies Austria GmbH
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Priority to EP14705139.5A priority Critical patent/EP2961541B1/en
Publication of EP2961541A1 publication Critical patent/EP2961541A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/28—Drums or other coil-holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/02—Supporting web roll
    • B65H18/026—Cantilever type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/10—Mechanisms in which power is applied to web-roll spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B2001/225—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by hot-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4132—Cantilever arrangement

Definitions

  • the invention relates to a reel for winding metal strip, in particular of rolled hot strip, with a mandrel shaft, which has a first shaft end piece, which is rotatably supported by means of at least one bearing provided in the reel frame.
  • a rolling stand In the production of steel sheet passes through a metallic hot strip for the purpose of thickness reductions, a rolling stand or consisting of a plurality of rolling mills rolling mill.
  • a reel In order to wind the metal strip into a collar, a so-called coil, a reel is provided at the outlet of the rolling device.
  • Such a reel has a drive shaft driven by a drive shaft.
  • the mandrel shaft is usually rotatably supported by several bearings in the machine frame of the reel. On the projecting end of the mandrel shaft projecting from the machine frame, the hot strip is wound.
  • the mandrel shaft itself usually consists of a mandrel body, of segments and an axially movable in the mandrel body expansion rod, whereby the segments are spreadable in the radial direction.
  • the drive-side part of the mandrel shaft which is mounted in the machine frame, is coupled at its end with a rotary drive.
  • the wound coils can then be removed in the axial direction, for example by an export carriage, which drives the coil out of the area of the reel.
  • the generic US 3 989 202 A describes a unilaterally mounted mandrel shaft, which instead of radially movable segments over several alternately arranged compressible and has non-compressible rings, which are arranged displaceably along the mandrel axis; by an axial displacement of these rings, the elastic rings are compressed and thereby increase their radial dimension, causing a clamping of the coil to be coiled.
  • the rotationally driven part of the mandrel shaft is conically shaped and is supported by means of two bearings in a correspondingly complementarily shaped, frusto-conical recess of the machine frame.
  • the mandrel shaft is pressed against this recess and secured to the machine frame.
  • pressurized liquid is pumped via a feed line in the coilabgewandte side of the frusto-conical recess, whereby the mandrel shaft is pushed out of the recess of the machine frame.
  • appropriate sealing devices are provided for the introduced into the end region of the cone-shaped recess, pressurized liquid.
  • the JP S54 83653 A describes a mandrel shaft mounted in a machine frame (see FIG. 2 ), which has at the coil end of the machine frame via a conical section which is pressed by tightening a clamping ring on the coilabgewandten side of the machine frame in a correspondingly shaped counter-shaped conical recess of the machine frame.
  • oil channels are recessed, in which when removing the mandrel shaft from the machine frame pressurized oil is introduced, whereby the conical recess of the machine frame is expanded, so that the mandrel shaft can be easily removed from its conical seat.
  • a hot strip reel mandrel may have a mass of more than 10 tons, which requires a correspondingly large hoist with high investment costs. The shunting of the hoist in the area of the reel is cumbersome because the space is often very tight.
  • the invention is provided to fasten the drive-side part of the mandrel shaft by means of a releasable tensioning device in the mounting.
  • a releasable tensioning device in the mounting.
  • This makes it possible in a simple manner, extract the mandrel shaft in the axial direction of the frame of the reel.
  • another mandrel shaft can be inserted via the coil car from the operating side into the storage.
  • the clamping device is tensioned.
  • a frictional connection between the mandrel shaft and the bearing more precisely the inner ring of the bearing, is produced.
  • the mandrel shaft is then fixed in the machine frame and ready for winding the hot strip.
  • the clamping device can be designed differently. According to their type of actuation, they can be actuated both mechanically and hydraulically.
  • the clamping device is designed as a hydraulically operated clamping sleeve. It has, in a preferred construction, a cavity for receiving a hydraulic medium in the form of a hollow cylinder. If this cavity is subjected to hydraulic pressure, there is a radial expansion of the clamping sleeve and as a result thereof in the region of the bearing seat to a radial spread. This frictional connection can be solved again by the hydraulic pressure is reduced and the elastic deformation of the clamping sleeve is formed back.
  • the clamping takes place by means of a mechanical clamping sleeve.
  • the clamping force is generated manually, for example by a shaft nut in conjunction with a conical seat tapered sleeve construction.
  • the clamping takes place by means of a combination of a hydraulic clamping sleeve in cooperation with a manually operated conical seat tapered box construction.
  • the FIG. 1 shows parts of a reel 1 in a highly simplified representation.
  • the reel 1 has a mandrel shaft 2.
  • the mandrel shaft 2 is rotatably supported in a drive-side part 18 by means of two bearings 4 in a machine frame 3.
  • These two bearings 4 may for example be roller bearings, each having an inner ring and an outer ring, wherein the outer ring is fixed by press fit in the machine frame 3 or is supported on bearing shells 14.
  • the mandrel shaft 2 is driven by a non-illustrated drive via the drive piece 16, which by means of a Coupling, eg a releasable, form-fitting Connection, carried out for example in the form of a toothing 9, is connected to the mandrel shaft 2.
  • the positive connection can also be designed differently, for example, an intermeshing wedge-shaft wedge-hub profile. The torque required for the winding process is thus transmitted essentially via this coupling.
  • connection between the mandrel shaft 2 and the inner ring of the respective bearing 4 is a releasable connection, which is produced by means of a tensioning device 5.
  • the tensioning device 5 is constructed such that in a tensioned state, a mandrel shaft 2 introduced into the bearing 4 can be fixed by frictional engagement. For this purpose, a radial expansion in the region of the bearing seat is generated by the tensioning device 5 until it is ensured that there is no slippage between the spindle shaft 2 and the inner ring of the bearing 4.
  • the operation of the tensioning device 5 can be effected in different ways.
  • the actuation may e.g. hydraulically or mechanically.
  • FIG. 2 shows an embodiment in which a hydraulic clamping sleeve 17 is arranged on the drive-side end piece 18.
  • the hydraulic clamping sleeve 17 is surrounded by a bushing 11 with a collar, which in turn is enclosed by the inner ring of the bearing 4.
  • the bearing 4 sits on the outer peripheral side on a bearing half shell 14.
  • the two end faces of the bearing 4 are protected by a bearing cap 13 and a gasket, not shown.
  • a cavity 12 is provided in the clamping sleeve 17.
  • This cavity has the shape of a hollow cylinder. It extends axially across the width of the bearing 4.
  • the cavity 12 is connected to a channel which leads to the outside and is closed by a closure 15.
  • FIG. 3 shows an embodiment in which the tensioning device 5 is also designed as a hydraulic clamping sleeve 17, but this directly, that is without the interposition of a socket, on the inner ring of Camp 4 acts.
  • the clamping sleeve 17 is fixed by a shaft nut 8.
  • FIG. 4 shows in the upper and lower partial section in each case an embodiment in which the frictional engagement is produced by a conical seat with tapered bushing.
  • the actuation is again hydraulically by now the inner mechanical clamping sleeve 7 is axially offset axially with the outer peripheral side surrounding the cone bushing 11.
  • the clamping is thus generated both mechanically and hydraulically.
  • the clamping or clamping force is generated purely mechanically.
  • a pressure is generated, by means of which the mandrel shaft 2 can be fixed in the bearing 4 of the machine frame 3, or can be removed by releasing the frictional connection of the machine frame 3.
  • a significant advantage of the invention is that by means of the tensioning device quickly and easily a mandrel shaft 2 in a machine frame 3 of a reel 1 can be mounted or dismounted.
  • the changeover time of a hot strip reel mandrel which often takes six to eight hours of production interruption in known reels, can be significantly reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Winding Of Webs (AREA)
  • Mounting Of Bearings Or Others (AREA)

Description

Technisches GebietTechnical area

Die Erfindung betrifft einen Haspel zum Wickeln von Metallband, insbesondere von gewalztem Warmband, mit einer Dornwelle, die ein erstes Wellenendstück aufweist, welches mittels zumindest eines im Haspelrahmen vorgesehenen Lagers drehbar gelagert ist.The invention relates to a reel for winding metal strip, in particular of rolled hot strip, with a mandrel shaft, which has a first shaft end piece, which is rotatably supported by means of at least one bearing provided in the reel frame.

Stand der TechnikState of the art

Bei der Herstellung von Stahlblech durchläuft ein metallisches Warmband zum Zwecke der Dickenreduktionen ein Walzgerüst oder eine aus mehreren Walzgerüsten bestehende Walzstraße. Um das Metallband zu einem Bund, einem so genannten Coil, zu wickeln, ist am Ausgang der Walzvorrichtung ein Haspel vorgesehen. Ein solcher Haspel weist eine von einem Antrieb angetriebene Dornwelle auf. Die Dornwelle ist im Maschinenrahmen des Haspels meist durch mehrere Lager drehbar gelagert. Auf dem vom Maschinengestell abragenden bedienseitigen Ende der Dornwelle wird das Warmband gewickelt. Die Dornwelle selbst besteht üblicherweise aus einem Dornkörper, aus Segmenten und einer im Dornkörper axial beweglichen Spreizstange, wodurch die Segmente in radialer Richtung spreizbar sind. Der antriebsseitige Teil der Dornwelle, der im Maschinengestell gelagert ist, ist an seinem Ende mit einem Drehantrieb gekoppelt. Die gewickelten Coils können dann in axialer Richtung abgenommen werden, beispielsweise von einem Ausfuhrwagen, der den Coil aus dem Bereich des Haspels heraus fährt.In the production of steel sheet passes through a metallic hot strip for the purpose of thickness reductions, a rolling stand or consisting of a plurality of rolling mills rolling mill. In order to wind the metal strip into a collar, a so-called coil, a reel is provided at the outlet of the rolling device. Such a reel has a drive shaft driven by a drive shaft. The mandrel shaft is usually rotatably supported by several bearings in the machine frame of the reel. On the projecting end of the mandrel shaft projecting from the machine frame, the hot strip is wound. The mandrel shaft itself usually consists of a mandrel body, of segments and an axially movable in the mandrel body expansion rod, whereby the segments are spreadable in the radial direction. The drive-side part of the mandrel shaft, which is mounted in the machine frame, is coupled at its end with a rotary drive. The wound coils can then be removed in the axial direction, for example by an export carriage, which drives the coil out of the area of the reel.

Die gattungsgemäße US 3 989 202 A beschreibt eine einseitig gelagerte Dornwelle, die anstatt radial beweglicher Segmente über mehrere abwechselnd angeordnete komprimierbare sowie nichtkompressible Ringe verfügt, die entlang der Dornachse verschiebbar angeordnet sind; durch eine axiale Verschiebung dieser Ringe werden die elastischen Ringe zusammengepresst und vergrößern dadurch ihre radiale Abmessung, was eine Klemmung des zu haspelnden Coil bewirkt. In einer speziellen Ausführung gemäß FIG.4 ist der drehangetriebene Teil der Dornwelle konisch ausgeformt und wird mit Hilfe zweier Lager in einer entsprechend komplementär geformten, kegelstumpfförmigen Ausnehmung des Maschinenrahmens gelagert. Mittels einer Spannmutter wird die Dornwelle gegen diese Ausnehmung gepresst und so am Maschinenrahmen befestigt. Zum Ausbau der Dornwelle wird druckbeaufschlagte Flüssigkeit über eine Zuleitung in die coilabgewandte Seite der kegelstumpfförmigen Ausnehmung gepumpt, wodurch die Dornwelle aus der Ausnehmung des Maschinenrahmens herausgedrückt wird. Ferner sind für die in den Endbereich der kegelstupfförmigen Ausnehmung eingeleiteten, unter Druck stehenden Flüssigkeit entsprechende Dichtvorrichtungen vorgesehen.The generic US 3 989 202 A describes a unilaterally mounted mandrel shaft, which instead of radially movable segments over several alternately arranged compressible and has non-compressible rings, which are arranged displaceably along the mandrel axis; by an axial displacement of these rings, the elastic rings are compressed and thereby increase their radial dimension, causing a clamping of the coil to be coiled. In a special design according to FIG.4 the rotationally driven part of the mandrel shaft is conically shaped and is supported by means of two bearings in a correspondingly complementarily shaped, frusto-conical recess of the machine frame. By means of a clamping nut, the mandrel shaft is pressed against this recess and secured to the machine frame. To remove the mandrel shaft pressurized liquid is pumped via a feed line in the coilabgewandte side of the frusto-conical recess, whereby the mandrel shaft is pushed out of the recess of the machine frame. Furthermore, appropriate sealing devices are provided for the introduced into the end region of the cone-shaped recess, pressurized liquid.

Die JP S54 83653 A beschreibt eine in einem Maschinenrahmen gelagerte Dornwelle (siehe FIG. 2), die am coilseitigen Ende des Maschinenrahmens über einen konischen Abschnitt verfügt, der durch Festziehen eines Spannringes auf der coilabgewandten Seite des Maschinenrahmens in eine entsprechend gegengleich geformte konische Ausnehmung des Maschinenrahmens gepresst wird. Zudem sind im konischen Abschnitt der Dornwelle Ölkanäle eingelassen, in die beim Herausnehmen der Dornwelle aus dem Maschinenrahmen druckbeaufschlagtes Öl eingebracht wird, wodurch die konische Ausnehmung des Maschinenrahmens aufgedehnt wird, sodass sich die Dornwelle leichter von ihrem konischen Sitz entfernen lässt.The JP S54 83653 A describes a mandrel shaft mounted in a machine frame (see FIG. 2 ), which has at the coil end of the machine frame via a conical section which is pressed by tightening a clamping ring on the coilabgewandten side of the machine frame in a correspondingly shaped counter-shaped conical recess of the machine frame. In addition, in the conical portion of the mandrel shaft oil channels are recessed, in which when removing the mandrel shaft from the machine frame pressurized oil is introduced, whereby the conical recess of the machine frame is expanded, so that the mandrel shaft can be easily removed from its conical seat.

Während des Herstellungsvorgangs kann es erforderlich sein, dass die Dornwelle gewechselt werden muss. Der Wechsel eines Warmband-Haspeldorns ist zeitaufwändig und erfordert eine Unterbrechung des Wickelvorgangs. Die Unterbrechung kann mehrere Stunden dauern. Dabei muss der schwergewichtige Warmband-Haspeldorn von einem geeigneten Hebezeuge aus dem Haspel gehoben werden. Ein Warmband-Haspeldorn kann eine Masse von mehr als 10 t aufweisen, was ein entsprechend großes Hebezeuge mit hohen Investitionskosten erforderlich macht. Das Rangieren des Hebezeuges im Bereich des Haspels ist umständlich, da die Platzverhältnisse oftmals sehr eng sind.During the manufacturing process it may be necessary to change the mandrel shaft. Changing a hot strip reel mandrel is time consuming and requires one Interruption of the winding process. The interruption can take several hours. The heavyweight hot strip reel mandrel must be lifted from the reel by a suitable lifting gear. A hot strip reel mandrel may have a mass of more than 10 tons, which requires a correspondingly large hoist with high investment costs. The shunting of the hoist in the area of the reel is cumbersome because the space is often very tight.

Darstellung der ErfindungPresentation of the invention

Es ist eine Aufgabe der Erfindung, einen Haspel anzugeben, bei dem ein Wechsel der Dornwelle vergleichsweise schneller und einfacher und mit einem geringeren gerätetechnischen Aufwand möglich ist.It is an object of the invention to provide a reel in which a change of the mandrel shaft is comparatively faster and easier and with less device complexity is possible.

Diese Aufgabe wird durch einen Haspel mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen definiert.This object is achieved by a reel having the features of claim 1. Advantageous embodiments of the invention are defined in the dependent claims.

Gemäß einem Grundgedanken der Erfindung ist vorgesehen, den antriebseitigen Teil der Dornwelle mittels einer lösbaren Spannvorrichtung in der Lagerung zu befestigen. Dadurch ist es auf einfache Weise möglich, in axialer Richtung die Dornwelle aus dem Gestell der Haspel herauszuziehen. Umgekehrt kann eine andere Dornwelle über den Bundwagen von der Bedienungsseite in die Lagerung eingeschoben werden. Sobald die neue Dornwelle vollständig im Maschinenrahmen eingeschoben ist, wird die Spanneinrichtung gespannt. Durch dieses Spannen der Wellen-Naben-Verbindung wird eine reibschlüssige Verbindung zwischen Dornwelle und dem Lager, genauer gesagt dem Innenring des Lagers, hergestellt. Die Dornwelle ist im Maschinenrahmen dann fixiert und bereit für das Wickeln des Warmbandes.According to a basic idea of the invention, it is provided to fasten the drive-side part of the mandrel shaft by means of a releasable tensioning device in the mounting. This makes it possible in a simple manner, extract the mandrel shaft in the axial direction of the frame of the reel. Conversely, another mandrel shaft can be inserted via the coil car from the operating side into the storage. As soon as the new mandrel shaft is fully inserted in the machine frame, the clamping device is tensioned. By this tensioning of the shaft-hub connection a frictional connection between the mandrel shaft and the bearing, more precisely the inner ring of the bearing, is produced. The mandrel shaft is then fixed in the machine frame and ready for winding the hot strip.

Die Spannvorrichtung kann konstruktiv unterschiedlich ausgeführt sein. Ihrer Betätigungsart nach kann sie sowohl mechanisch als auch hydraulisch betätigt sein.The clamping device can be designed differently. According to their type of actuation, they can be actuated both mechanically and hydraulically.

In einer bevorzugten Ausführungsform ist vorgesehen, dass die Spannvorrichtung als hydraulisch betätigte Spannhülse ausgebildet ist. Sie weist in einer bevorzugten Bauweise einen zur Aufnahme eines Hydraulikmediums vorgesehenen Hohlraum in der Form eines Hohlzylinders auf. Wird dieser Hohlraum mit Hydraulikdruck beaufschlagt, kommt es zu einer radialen Aufweitung der Spannhülse und infolge davon im Bereich des Lagersitzes zu einer radialen Spreizung. Diese reibschlüssige Verbindung kann wieder gelöst werden, indem der Hydraulikdruck verringert wird und die elastische Verformung der Spannhülse sich zurück bildet.In a preferred embodiment it is provided that the clamping device is designed as a hydraulically operated clamping sleeve. It has, in a preferred construction, a cavity for receiving a hydraulic medium in the form of a hollow cylinder. If this cavity is subjected to hydraulic pressure, there is a radial expansion of the clamping sleeve and as a result thereof in the region of the bearing seat to a radial spread. This frictional connection can be solved again by the hydraulic pressure is reduced and the elastic deformation of the clamping sleeve is formed back.

In einer einfachen Ausführungsform kann vorgesehen sein, dass die Klemmung mittels einer mechanischen Spannhülse erfolgt. In diesem Fall wird die Spannkraft manuell erzeugt, beispielsweise durch eine Wellenmutter in Verbindung mit einer Kegelsitz-Kegelbüchse-Konstruktion erfolgt.In a simple embodiment it can be provided that the clamping takes place by means of a mechanical clamping sleeve. In this case, the clamping force is generated manually, for example by a shaft nut in conjunction with a conical seat tapered sleeve construction.

In einer anderen bevorzugten Ausführungsform der Erfindung kann vorgesehen sein, dass die Klemmung mittels einer Kombination aus einer hydraulischen Spannhülse im Zusammenwirken mit einer manuell betätigten Kegelsitz-Kegelbüchse-Konstruktion erfolgt.In another preferred embodiment of the invention can be provided that the clamping takes place by means of a combination of a hydraulic clamping sleeve in cooperation with a manually operated conical seat tapered box construction.

Kurzbeschreibung der ZeichnungenBrief description of the drawings

Zur weiteren Erläuterung der Erfindung wird im nachfolgenden Teil der Beschreibung auf Zeichnungen Bezug genommen, aus denen weitere vorteilhafte Ausgestaltungen, Einzelheiten und Weiterbildungen der Erfindung anhand von nicht einschränkenden Ausführungsbeispielen zu entnehmen sind.To further explain the invention, reference is made in the following part of the description to drawings, from which further advantageous embodiments, details and developments of the invention can be found by way of non-limiting embodiments.

Es zeigen:

Figur 1
eine schematische Darstellung, welche die erfindungsgemäße Lagerung der Dornwelle im Maschinenrahmen eines Haspels zeigt;
Figur 2
ein erstes Ausführungsbeispiel der Erfindung, bei dem die Spannvorrichtung als hydraulische Spannhülse ausgebildet ist;
Figur 3
ein zweites Ausführungsbeispiel der Erfindung, bei dem die Spannvorrichtung eine Kombination aus hydraulischer Spannvorrichtung und mechanischer Spannvorrichtung ausgebildet ist;
Figur 4
eine andere Variante der Erfindung, bei dem die Spannvorrichtung wie im oberen Teilschnitt dargestellt, aus einer Kombination, bestehend aus einer hydraulischen Wellenmutter und einer mechanischen Spannhülse, oder - wie ihm unteren Teilschnitt dargestellt -, als mechanische Wellenmutter-Spannvorrichtung ausgebildet ist.
Show it:
FIG. 1
a schematic representation showing the inventive storage of the mandrel shaft in the machine frame of a reel;
FIG. 2
a first embodiment of the invention, in which the clamping device is designed as a hydraulic clamping sleeve;
FIG. 3
a second embodiment of the invention, wherein the tensioning device is a combination of hydraulic tensioning device and mechanical tensioning device is formed;
FIG. 4
another variant of the invention, wherein the tensioning device as shown in the upper partial section, from a combination consisting of a hydraulic shaft nut and a mechanical clamping sleeve, or - as shown in the lower section section - is designed as a mechanical shaft nut clamping device.

Ausführung der ErfindungEmbodiment of the invention

Die Figur 1 zeigt Teile von einem Haspel 1 in einer stark vereinfachten Darstellung. Der Haspel 1 weist eine Dornwelle 2 auf. Die Dornwelle 2 ist in einem antriebsseitigen Teil 18 mittels zweier Lager 4 in einem Maschinenrahmen 3 drehbar gelagert. Diese beiden Lager 4 können beispielsweise Wälzlager sein, die jeweils einen Innenring und einen Außenring aufweisen, wobei der Außenring durch Presssitz im Maschinenrahmen 3 befestigt ist oder sich auf Lagerhalbschalen 14 abstützt.The FIG. 1 shows parts of a reel 1 in a highly simplified representation. The reel 1 has a mandrel shaft 2. The mandrel shaft 2 is rotatably supported in a drive-side part 18 by means of two bearings 4 in a machine frame 3. These two bearings 4 may for example be roller bearings, each having an inner ring and an outer ring, wherein the outer ring is fixed by press fit in the machine frame 3 or is supported on bearing shells 14.

Der bedienseitige Teil der Dornwelle 2, der vom Maschinenrahmen 3 in Figur 1 zur linken Seite hin abragt, beinhaltet eine Spreizvorrichtung, zum Wickeln des Warmbandes zu einem Bund 6. Ein Stützlager 19 stützt das äußere linke Ende der Dornwelle 2. Angetrieben wird die Dornwelle 2 von einem nicht näher dargestellten Antrieb über das Antriebstück 16, welches mittels einer Kupplung, z.B. einer lösbaren, formschlüssigen Verbindung, ausgeführt beispielsweise in Form einer Verzahnung 9, mit der Dornwelle 2 verbunden ist. Die formschlüssige Verbindung kann auch anders ausgeführt sein, beispielsweise ein ineinandergreifendes Keil-Wellen-Keil-Naben-Profil. Das für den Wickelvorgang erforderliche Drehmoment wird also im Wesentlichen über diese Kupplung übertragen.The operator-side part of the mandrel shaft 2, the machine frame 3 in FIG. 1 A support bearing 19 supports the outer left end of the mandrel shaft 2. The mandrel shaft 2 is driven by a non-illustrated drive via the drive piece 16, which by means of a Coupling, eg a releasable, form-fitting Connection, carried out for example in the form of a toothing 9, is connected to the mandrel shaft 2. The positive connection can also be designed differently, for example, an intermeshing wedge-shaft wedge-hub profile. The torque required for the winding process is thus transmitted essentially via this coupling.

Gemäß der Erfindung ist die Verbindung zwischen der Dornwelle 2 und dem Innenring des jeweiligen Lagers 4 eine lösbare Verbindung, die mittels einer Spannvorrichtung 5 hergestellt ist. Die Spannvorrichtung 5 ist so konstruiert, dass in einem gespannten Zustand eine in das Lager 4 eingeführte Dornwelle 2 durch Reibschluss fixiert werden kann. Zu diesem Zweck wird von der Spannvorrichtung 5 solange eine radiale Aufweitung im Bereich des Lagersitzes erzeugt, bis sichergestellt ist, dass es nicht zum Rutschen zwischen Dornwelle 2 und Innenring des Lagers 4 kommt.According to the invention, the connection between the mandrel shaft 2 and the inner ring of the respective bearing 4 is a releasable connection, which is produced by means of a tensioning device 5. The tensioning device 5 is constructed such that in a tensioned state, a mandrel shaft 2 introduced into the bearing 4 can be fixed by frictional engagement. For this purpose, a radial expansion in the region of the bearing seat is generated by the tensioning device 5 until it is ensured that there is no slippage between the spindle shaft 2 and the inner ring of the bearing 4.

Durch Entspannen der Spannvorrichtung 5 lässt sich die reibschlüssige Verbindung zwischen Lager 4 und Dornwelle 2 wieder einfach lösen, so dass die Dornwelle 2 aus dem Maschinenrahmen 3 in Richtung des Pfeils 10 von der Bedienseite herausgezogen werden kann.By relaxing the tensioning device 5, the frictional connection between the bearing 4 and mandrel shaft 2 can be easily solved again, so that the mandrel shaft 2 can be pulled out of the machine frame 3 in the direction of the arrow 10 from the operating side.

Durch diese leicht herstellbare und wieder lösbare Wellen-Naben-Reibungsverbindung ist ein Wechsel der Dornwelle 2 schnell und einfach mit geringem technischem Aufwand möglich. Ein spezielles Hebezeug wird nicht mehr benötigt. Es ist möglich die sonst übliche Wechselzeit eines Dorns von circa acht Stunden auf circa ein bis zwei Stunden zu reduzieren. Der Wechsel ist einfach und bedarf weniger Personal. Der Dorn wird ohne Lagerung und Spreizzylinder gewechselt, wodurch diese nicht mehr als Wechselteil benötigt werden. Im Bereich der Haspel entfällt der Platzbedarf für das Hebezeug. Auch die sonst regelmäßige Überprüfung dieser Vorrichtung entfällt.Through this easily manufactured and re-releasable shaft-hub friction connection a change of the mandrel shaft 2 is possible quickly and easily with little technical effort. A special hoist is no longer needed. It is possible to reduce the usual change time of a thorn from about eight hours to about one to two hours. The change is easy and requires less staff. The mandrel is changed without storage and spreader cylinder, so they are no longer needed as a replacement part. In the area of the reel, the space required for the hoist is eliminated. Even the otherwise regular review of this device is eliminated.

Die Betätigung der Spannvorrichtung 5 kann auf unterschiedliche Art und Weise bewirkt sein. Die Betätigung kann z.B. hydraulisch oder mechanisch erfolgen.The operation of the tensioning device 5 can be effected in different ways. The actuation may e.g. hydraulically or mechanically.

Figur 2 zeigt eine Ausführungsform, bei der eine hydraulische Spannhülse 17 auf dem antriebsseitigen Endstück 18 angeordnet ist. Außenumfangsseitig ist die hydraulische Spannhülse 17 von einer Buchse 11 mit einem Bund umgeben, die wiederum vom inneren Ring des Lagers 4 umschlossen ist. Das Lager 4 sitzt außenumfangsseitig auf einer Lagerhalbschale 14 auf. Die beiden Stirnseiten des Lagers 4 sind durch einen Lagerdeckel 13 und eine nicht näher dargestellte Dichtung geschützt. In der Spannhülse 17 ist ein Hohlraum 12 vorgesehen. Dieser Hohlraum weist die Form eines Hohlzylinders auf. Er erstreckt sich axial über die Breite des Lagers 4. Der Hohlraum 12 ist mit einem Kanal verbunden, der nach außen führt und von einem Verschluss 15 verschlossen ist. Dadurch ist es möglich, eine Hydraulikflüssigkeit mit Druck einzubringen, so dass die im Hohlraum 12 gegenüberliegenden Ringteile der Spannhülse 17 eine radiale Aufweitung erfahren. Dies kann beispielsweise durch Anschließen einer Druckleitung in Verbindung mit einer Hydraulikpumpe erfolgen. Der Druck im Hohlraum führt dazu, dass die im Hohlraum sich gegenüberstehenden Ringteile der Spannhülse 12 geringfügig sich voneinander weg bewegen und zwischen dem Wellen-Endstück 18 und dem Lager 4 eine radial gerichtete Pressung erzeugt wird, welche die Dornwelle 2 im Lager 4 festlegt. Wenn diese Verbindung gelöst werden soll, wird der Hydraulikdruck im Hohlraum 12 reduziert. Folge davon ist, dass sich die im Hohlraum gegenüberliegenden Ringteile der Spannhülse 12 wieder aufeinander zu bewegen. Die Pressung ist weg und die Verbindung zwischen Dornwelle 2 und Lager 4 ist gelöst. Die Dornwelle 2 kann in axialer Richtung zur Bedienseite hin aus dem Maschinenrahmen 3 des Haspels entnommen werden. FIG. 2 shows an embodiment in which a hydraulic clamping sleeve 17 is arranged on the drive-side end piece 18. On the outer circumference, the hydraulic clamping sleeve 17 is surrounded by a bushing 11 with a collar, which in turn is enclosed by the inner ring of the bearing 4. The bearing 4 sits on the outer peripheral side on a bearing half shell 14. The two end faces of the bearing 4 are protected by a bearing cap 13 and a gasket, not shown. In the clamping sleeve 17, a cavity 12 is provided. This cavity has the shape of a hollow cylinder. It extends axially across the width of the bearing 4. The cavity 12 is connected to a channel which leads to the outside and is closed by a closure 15. This makes it possible to introduce a hydraulic fluid with pressure, so that the opposite in the cavity 12 ring parts of the clamping sleeve 17 undergo a radial expansion. This can be done for example by connecting a pressure line in conjunction with a hydraulic pump. The pressure in the cavity causes the annular parts of the clamping sleeve 12, which face one another in the hollow space, to move slightly away from one another and produce a radially directed pressure between the shaft end piece 18 and the bearing 4, which defines the mandrel shaft 2 in the bearing 4. When this connection is to be released, the hydraulic pressure in the cavity 12 is reduced. The consequence of this is that the ring parts of the clamping sleeve 12, which are located opposite in the hollow space, move toward one another again. The pressure is gone and the connection between the mandrel shaft 2 and bearing 4 is released. The mandrel shaft 2 can be removed in the axial direction to the operating side out of the machine frame 3 of the reel.

Figur 3 zeigt eine Ausführungsform, bei der die Spannvorrichtung 5 ebenfalls als hydraulische Spannhülse 17 ausgebildet ist, diese aber direkt, das heißt ohne Zwischenschaltung einer Buchse, auf den inneren Ring des Lagers 4 wirkt. Die Spannhülse 17 wird durch eine Wellenmutter 8 fixiert. Im Unterschied zu Figur 2 ist der Verbindungskanal zwischen Außenraum und Hohlraum 12 an der Stirnseite der hydraulischen Spannhülse 17 von außen zugänglich. Er ist ebenfalls mit einer Verschlussschraube 15 verschlossen. FIG. 3 shows an embodiment in which the tensioning device 5 is also designed as a hydraulic clamping sleeve 17, but this directly, that is without the interposition of a socket, on the inner ring of Camp 4 acts. The clamping sleeve 17 is fixed by a shaft nut 8. In contrast to FIG. 2 is the connection channel between the outer space and cavity 12 on the front side of the hydraulic clamping sleeve 17 accessible from the outside. He is also closed with a screw plug 15.

Die Figur 4 zeigt im oberen und unteren Teilschnitt jeweils eine Ausführungsform, bei der der Reibschluss durch einen Kegelsitz mit Kegelbüchse hergestellt ist. Im oberen Teilschnitt erfolgt die Betätigung wieder hydraulisch, indem nun die innen liegende mechanische Spannhülse 7 axial mit der sie außenumfangsseitig umgebenden Kegelbüchse 11 axial versetzt wird. Die Klemmung wird also sowohl mechanisch als auch hydraulisch erzeugt. Im unteren Teilschnitt erfolgt das Erzeugen der Spann- beziehungsweise Klemmkraft rein mechanisch. Gemeinsam ist den beiden Ausführungen der Figur 4 dass wieder in radialer Richtung eine Pressung erzeugt wird, mittels derer die Dornwelle 2 im Lager 4 des Maschinenrahmen 3 fixiert werden kann, beziehungsweise durch Lösen der reibschlüssigen Verbindung vom Maschinenrahmen 3 ausgebaut werden kann.The FIG. 4 shows in the upper and lower partial section in each case an embodiment in which the frictional engagement is produced by a conical seat with tapered bushing. In the upper part section, the actuation is again hydraulically by now the inner mechanical clamping sleeve 7 is axially offset axially with the outer peripheral side surrounding the cone bushing 11. The clamping is thus generated both mechanically and hydraulically. In the lower partial section, the clamping or clamping force is generated purely mechanically. Common to the two versions of the FIG. 4 that again in the radial direction a pressure is generated, by means of which the mandrel shaft 2 can be fixed in the bearing 4 of the machine frame 3, or can be removed by releasing the frictional connection of the machine frame 3.

Ein wesentlicher Vorteil der Erfindung ist es, dass mittels der Spannvorrichtung schnell und einfach eine Dornwelle 2 in einem Maschinenrahmen 3 eines Haspels 1 montiert beziehungsweise demontiert werden kann. Die Wechselzeit eines Warmbandes-Haspeldorns, der bei bekannten Haspeln oft sechs bis acht Stunden Produktionsunterbrechung beansprucht, kann deutlich reduziert werden.A significant advantage of the invention is that by means of the tensioning device quickly and easily a mandrel shaft 2 in a machine frame 3 of a reel 1 can be mounted or dismounted. The changeover time of a hot strip reel mandrel, which often takes six to eight hours of production interruption in known reels, can be significantly reduced.

Obwohl die Erfindung in Detail durch die oben dargestellten bevorzugten Ausführungsbeispiele näher illustriert und beschrieben wurde, so ist die Erfindung nicht durch die offenbarten Beispiele eingeschränkt und andere Variationen können vom Fachmann hieraus abgeleitet werden, ohne den Schutzumfang der Erfindung zu verlassen.While the invention has been further illustrated and described in detail by the preferred embodiments set forth above, the invention is not limited by the disclosed examples, and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention.

Zusammenstellung der verwendeten BezugszeichenCompilation of the reference numbers used

  1. 1 Haspel1 reel
  2. 2 Dornwelle2 arbor shaft
  3. 3 Maschinenrahmen3 machine frame
  4. 4 Lager4 bearings
  5. 5 Spannvorrichtung5 clamping device
  6. 6 Bund, Warmbund6 waistband, warm waistband
  7. 7 mechanische Spannhülse7 mechanical clamping sleeve
  8. 8 Wellenmutter8 shaft nut
  9. 9 Verzahnung9 toothing
  10. 10 Ausziehrichtung10 pull-out direction
  11. 11 Buchse11 socket
  12. 12 Hohlraum12 cavity
  13. 13 Lagerdeckel13 bearing cap
  14. 14 Lagerhalbschale14 bearing half shell
  15. 15 Verschluss15 closure
  16. 16 Antriebstück16 drive piece
  17. 17 hydraulische Spannhülse17 hydraulic clamping sleeve
  18. 18 Wellenendstück18 shaft end piece
  19. 19 Stützlager19 support bearings

Claims (11)

  1. Reel for winding metal strip, in particular hot-rolled strip, having a mandrel shaft (2) which has a first shaft end piece (18) which is rotatably mounted by means of at least one bearing (4) provided in the machine frame (3) of the reel (1), characterised in that a clamping device (5) is arranged between the at least one bearing (4) and the mandrel shaft (2), such that in a clamped operating state a frictional connection is able to be produced between the at least one bearing (4) and the mandrel shaft (2).
  2. Reel according to claim 1, characterised in that the clamping device (5) is able to be actuated mechanically or hydraulically.
  3. Reel according to claim 2, characterised in that the clamping device (5) has a hydraulically actuated clamping sleeve (17).
  4. Reel according to claim 3, characterised in that the hydraulically actuated clamping sleeve (17) has a hollow space (12) in the form of a hollow cylinder for receiving a hydraulic medium.
  5. Reel according to claim 4, characterised in that the hollow space (12) configured as a hollow cylinder is accessible from outside via a channel conducting the hydraulic medium.
  6. Reel according to claim 4 or 5, characterised in that the axial extent of the hollow space (12) is wider than the width of the associated bearing (4).
  7. Reel according to claim 5, characterised in that the channel is able to be closed from outside by means of a closure (15).
  8. Reel according to claim 2, characterised in that the clamping device is configured as a mechanically actuated clamping sleeve (7).
  9. Reel according to claim 8, characterised in that the mechanically actuated clamping sleeve (7) has a conical seat-conical bush arrangement and a shaft nut (8).
  10. Reel according to claim 1, characterised in that the clamping device is formed from a hydraulically actuated shaft nut.
  11. Reel according to claim 1, characterised in that the shaft end piece (18) is mounted in two bearings (4).
EP14705139.5A 2013-03-01 2014-02-17 Reel for winding a metal strip Active EP2961541B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14705139.5A EP2961541B1 (en) 2013-03-01 2014-02-17 Reel for winding a metal strip

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13157392.5A EP2772324A1 (en) 2013-03-01 2013-03-01 Reel for winding a metal strip
PCT/EP2014/053011 WO2014131640A1 (en) 2013-03-01 2014-02-17 Reel for winding metal strip
EP14705139.5A EP2961541B1 (en) 2013-03-01 2014-02-17 Reel for winding a metal strip

Publications (2)

Publication Number Publication Date
EP2961541A1 EP2961541A1 (en) 2016-01-06
EP2961541B1 true EP2961541B1 (en) 2019-05-22

Family

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EP13157392.5A Withdrawn EP2772324A1 (en) 2013-03-01 2013-03-01 Reel for winding a metal strip
EP14705139.5A Active EP2961541B1 (en) 2013-03-01 2014-02-17 Reel for winding a metal strip

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP13157392.5A Withdrawn EP2772324A1 (en) 2013-03-01 2013-03-01 Reel for winding a metal strip

Country Status (4)

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US (1) US9873144B2 (en)
EP (2) EP2772324A1 (en)
CN (1) CN105050740B (en)
WO (1) WO2014131640A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111014299B (en) * 2019-11-12 2022-08-09 上海宝钢工业技术服务有限公司 Online mounting method for hot rolling coiler wrapper roller frame bearing pedestal

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Publication number Priority date Publication date Assignee Title
US3104074A (en) * 1961-02-27 1963-09-17 Beloit Eastern Corp Pneumatic core shaft
US3236471A (en) * 1963-12-02 1966-02-22 Beloit Corp Drum winder for paper and the like
US3592405A (en) * 1969-10-09 1971-07-13 Michael M Young Pneumatically expansible mandrel
FI53293C (en) * 1971-07-02 1978-04-10 Giovanni Gattrugeri EXPANSIONSAXEL
DE2527690C3 (en) * 1975-06-21 1978-04-20 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg Tape reel for winding and unwinding metal tapes
JPS6057406B2 (en) * 1977-12-16 1985-12-14 株式会社日立製作所 mandrel drive device
US4201352A (en) * 1978-09-25 1980-05-06 Loopco Industries, Inc. Method and combination for winding strands of web material having varying thicknesses on a take-up drum
CN1011669B (en) * 1985-08-15 1991-02-20 小濑雅司 Coiling device
FR2610910B1 (en) * 1987-02-16 1990-02-02 Clecim Sa REMOVABLE APPARATUS FOR CONTROLLING A COIL CHUCK
DE19636184C2 (en) * 1996-09-06 2002-04-04 Winfried Poeppinghaus Method and device for independently changing the deflection of a shaft, axis or other support
US20080237388A1 (en) * 2007-03-27 2008-10-02 Convertech, Inc. Differential core winding apparatus
CN202377307U (en) * 2011-12-14 2012-08-15 欧达宜昌机电设备制造有限公司 Octahedral pyramid seamless winding drum
CN202638954U (en) * 2012-06-14 2013-01-02 无锡平盛科技有限公司 Pay-off machine right tip cone device

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Also Published As

Publication number Publication date
EP2961541A1 (en) 2016-01-06
US20160016213A1 (en) 2016-01-21
WO2014131640A1 (en) 2014-09-04
EP2772324A1 (en) 2014-09-03
US9873144B2 (en) 2018-01-23
CN105050740B (en) 2017-10-13
CN105050740A (en) 2015-11-11

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