EP1318879B1 - Combined drive for a four- or six-high rolling stand and an operating method for the same - Google Patents
Combined drive for a four- or six-high rolling stand and an operating method for the same Download PDFInfo
- Publication number
- EP1318879B1 EP1318879B1 EP01967332A EP01967332A EP1318879B1 EP 1318879 B1 EP1318879 B1 EP 1318879B1 EP 01967332 A EP01967332 A EP 01967332A EP 01967332 A EP01967332 A EP 01967332A EP 1318879 B1 EP1318879 B1 EP 1318879B1
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- EP
- European Patent Office
- Prior art keywords
- rolls
- working
- roll
- motor
- backing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005096 rolling process Methods 0.000 title claims description 25
- 238000011017 operating method Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001513 hot isostatic pressing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000007668 thin rolling process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
- B21B35/06—Drives for metal-rolling mills, e.g. hydraulic drives for non-continuously-operating mills or for single stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
- B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/001—Convertible or tiltable stands, e.g. from duo to universal stands, from horizontal to vertical stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B2013/025—Quarto, four-high stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B2013/028—Sixto, six-high stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
- B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
- B21B35/12—Toothed-wheel gearings specially adapted for metal-rolling mills; Housings or mountings therefor
Definitions
- the invention relates to a four-roll stand according to the preamble of the claim 1 and a six-roll stand according to the preamble of claim 2 as well as a method for the optional operation of the four- or six-roll stand with thin and thicker work rolls in diameter.
- One or more roll stands can be found in a rolling mill.
- the rolling stock is gripped by the work rolls, which are in the rolling direction turn against each other. It is due to the roll rotation of the work rolls moved forward. In the roll gap, the thickness of the rolling stock is determined by the high Pressure applied by the work rolls is reduced.
- a four-roll stand (Quarto) has two work and two backup rolls.
- a six-roll stand (Sexto) has two work rolls, two backup rolls and between the work rolls and intermediate rolls arranged on the support rolls.
- the work rolls themselves have no drive, but are at best connected to each other by means of a synchronized gearbox to a possible Avoid slippage of the work rolls.
- a quick conversion of these roll stands on thicker work rolls is neither intended nor possible because the exclusive drive of the backup rolls and the entrainment of the work rolls is not possible due to friction with thicker work rolls.
- JP-A-62-197207 discloses a six-roll stand, where the upper and lower intermediate roll and the upper work roll are driven by spindles.
- the engines provided to drive the spindles individually or coupled. This will be done in one Corresponding adjustment options by positioning gear wheels performed. According to this invention there is also the possibility uncouple individual spindles. A conversion of this device to thicker work rolls is not provided, however, because the exclusive drive from both work rolls not possible. A corresponding spindle was not considered.
- the invention is therefore based on the object to propose a roll stand that allows rapid adaptation to rolling stock different strength and / or hardness allowed.
- the invention proposes that the Back-up rolls and work rolls or intermediate rolls that can be driven via drive spindles and work rolls or back-up rolls and intermediate rolls, respectively a detachable device is assigned, which is connected to a motor.
- This combined drive according to the invention in the four-roll or Six-roll stand allows thick work rolls to be assigned to them detachable device to connect directly to a motor, while at Use of thinner work rolls in a four-roll stand two back-up rolls, which in this case have detachable devices connected to the engine.
- the thin work rolls are then only carried by friction from the backup rollers. Be consistent with a six-roll stand to operate the thin work rolls only the back-up rolls and / or the intermediate rolls over those assigned to them detachable devices connected to the engine while operating the thicker work rolls only the work rolls over the assigned to them detachable devices are connected to a motor.
- roller there is a connection between the roller and the motor only then when a direct flow of force from the roller over the spindle, the releasable Device and, if necessary, an intermediate gearbox to the engine consists.
- a roller has no connection to the motor in the sense of this definition, which is only taken over by friction from another driven roller becomes.
- the roll stands can also be designed so that as a detachable device the hits of the drive spindles of the work rolls work themselves if these are removed from the drive pins of the work rolls. Therefor the drive spindles can telescopically enable these trigger movements be executed.
- the thin work rolls have no drive pins and consequently the hits of the Drive spindles become ineffective. That too is that of the thin work roll assigned hits of the drive spindle released from the work roll. The drive spindles for the work rolls then run loose.
- a uniform and cost-effective drive of all rollers can be achieved if the support and work and, if necessary, intermediate rolls of a common motor via a gear, especially via a worm gear are driven.
- a gear especially via a worm gear
- Adjustment devices such as step wedges on the top of the scaffold and the underside of the scaffold.
- Thin work rolls preferably come in the roll stands according to the invention with a low-wear material, especially powder metallurgical Work rolls (high-strength HSS rolls) are used. These work rolls can, for example, according to the HIP (Hot Isostatic Pressing) process getting produced.
- HIP Hot Isostatic Pressing
- the worm gear 6 consists of the two middle work roll gear wheels 8, 9 and an upper and a lower Back-up roller gear 11, 12.
- Both the support rolls 1, 2 and the work rolls 4, 5 are drive spindles, respectively 13,14,15,16 assigned to the via the worm gear 6 are connected to the motor 7.
- the associated with the support rollers 1 and 2 Drive spindles 13, 16 each have a clutch 17, 18, which in disengaged state the flow of force between the support rollers 1, 2 and Interrupt motor 7.
- the thin work rolls 4, 5 shown in FIG Clutches 17, 18 engaged only to drive the support rollers 1, 2, while the drive spindles assigned to the thin work rolls 4, 5 14, 15 run loose.
- the work rolls 4, 5 shown in FIG. 1 have no drive pins the flow of force between the thin work rolls 4, 5 and the motor 7 is interrupted.
- the four-roll stand according to FIG. 2 differs of that according to Figure 1 in that the two support rollers 1, 2 immediately above their drive spindles 13, 16 connected to a separate backup roller motor 26, 27 are. However, this difference is meaningless for the way it works.
- the thicker work rolls 24, 25 now have drive pins 28, 29, which with the hits 19, 21 of the drive spindles 14, 15 cooperate.
- the adhesion of the thicker work rolls 24, 25 is thus over the spindles 14, 15 and the pinion gear 6 to the motor 7, which in this embodiment only drives the work rolls 24.25.
- the clutches 17, 18 of the drive spindles 13, 16 for the support rollers 1, 2 are disengaged so that the support rollers 1, 2 run ineffectively while the backup roller motors 26, 27 are switched off.
- All drive spindles are in a manner known per se as cardan shafts trained to fix the offset to the gear or motor side compensate the arranged attachment points of the drive spindles.
- the invention allows rapid adaptation to rolling stock of different types Strength and / or hardness by using the rolling stands with little effort optionally operated with both thin and thicker work rolls can be.
- the combined drive proposed according to the invention for this purpose in the four-roll or six-roll stand allows thick work rolls connect directly to a motor while thin work rolls only carried by friction from adjacent support or intermediate rollers become.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Crushing And Grinding (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Replacement Of Web Rolls (AREA)
Abstract
Description
Die Erfindung betrifft ein Vierwalzengerüst nach dem Oberbegriff des Anspruchs
1 und ein Sechswalzengerüst nach dem Oberbegriff des Anspruchs 2
sowie ein Verfahren zum wahlweisen Betrieb des Vier- bzw. Sechswalzengerüstes
mit im Durchmesser dünnen und dickeren Arbeitswalzen.The invention relates to a four-roll stand according to the preamble of the claim
1 and a six-roll stand according to the preamble of
Eines oder mehrere Walzgerüste finden sich in einer Walzstraße. Im Walzgerüst wird das Walzgut von den Arbeitswalzen erfaßt, die sich in Walzrichtung gegeneinander drehen. Es wird durch die Walzendrehung der Arbeitswalzen vorwärts bewegt. Im Walzenspalt wird die Dicke des Walzgutes durch den hohen Druck, den die Arbeitswalzen ausüben, reduziert. Ein Vierwalzengerüst (Quarto) hat zwei Arbeits- und zwei Stützwalzen. Eine Sechswalzengerüst (Sexto) hat zwei Arbeitswalzen, zwei Stützwalzen sowie zwischen den Arbeitswalzen und den Stützwalzen angeordnete Zwischenwalzen.One or more roll stands can be found in a rolling mill. In the mill stand the rolling stock is gripped by the work rolls, which are in the rolling direction turn against each other. It is due to the roll rotation of the work rolls moved forward. In the roll gap, the thickness of the rolling stock is determined by the high Pressure applied by the work rolls is reduced. A four-roll stand (Quarto) has two work and two backup rolls. A six-roll stand (Sexto) has two work rolls, two backup rolls and between the work rolls and intermediate rolls arranged on the support rolls.
Für das Walzen von sehr dünnen Bändern in einer Walzstraße (Warmbandoder Kaltbandstraße) sind im Durchmesser dünnere Arbeitswalzen in den in Walzrichtung hinteren Walzgerüsten vorteilhaft. Sie reduzieren die Walzkräfte, den Kantenabfall, den Temperaturverlust des Walzgutes und ermöglichen unter Umständen sogar die Einsparung von Walzgerüsten in der Walzstraße, weil höhere Abnahmen durchgeführt werden können.For rolling very thin strips in a rolling mill (hot strip or Cold strip mill) are thinner work rolls in diameter in the Direction of rolling rear roll stands advantageous. You reduce the rolling forces, the edge drop, the temperature loss of the rolling stock and allow under Maybe even the saving of roll stands in the rolling mill because higher acceptances can be carried out.
Regelmäßig besteht jedoch die Forderung, daß eine Warmwalzstraße nicht nur dünne Bänder, sondern einen Dickenbereich von beispielsweise 0,8 mm bis 12,7 mm Stärke in unterschiedlicher Härte und unterschiedlichen Breiten abdecken muß. Aufgrund dieser Forderung an das Produktionsspektrum ist eine Optimierung der Walzstraße auf dünne Bänder aus folgenden Gründen nicht möglich: However, there is a regular requirement that a hot rolling mill not only thin strips, but a thickness range of, for example, 0.8 mm to Cover 12.7 mm thick in different hardness and different widths got to. Due to this requirement on the production spectrum is a Optimization of the rolling mill on thin strips is not possible for the following reasons possible:
Die Optimierung setzt voraus, daß beispielsweise die in Produktionsrichtung letzten beiden Walzengerüste mit im Durchmesser dünneren Arbeitswalzen betrieben werden. Die Antriebszapfen und Antriebsspindeln dieser dünnen Arbeitswalzen wären allerdings beim Walzen stärkerer und/oder härterer Bänder überlastet. Ein Austausch der im Durchmesser dünneren Arbeitswalzen gegen dickere Arbeitswalzen erfordert einen Wechsel der Antriebsspindeln. Der hieraus resultierende Stillstand der Walzstraße ist jedoch nicht akzeptabel.The optimization assumes, for example, that in the direction of production last two roll stands with thinner work rolls in diameter become. The drive pins and drive spindles of these thin work rolls would, however, be stronger and / or harder strips when rolling overloaded. An exchange of the thinner work rolls for thicker work rolls require changing the drive spindles. The one from here the resulting standstill of the rolling mill is not acceptable.
Aus der DE 3411853 A1 ist bereits ein Vier- oder Sechswalzengerüst mit angetriebenen Stützwalzen bekannt geworden, bei dem die Arbeitswalzen von den Stütz- bzw. Zwischenwalzen durch Friktion mitgenommen werden. Um bei Betriebszuständen des Walzgerüstes, bei denen der Antrieb nur zu einem geringen Bruchteil ausgelastet wird, dennoch eine gute Regelbarkeit des Antriebs zu gewährleisten und eine günstige Auslastung der Antriebsmotoren zu erreichen, wird vorgeschlagen, daß einer der Antriebsmotore mit seiner Stützwalze über ein Schaltgetriebe verbunden ist und von dieser Stützwalze abgekoppelt und stillgesetzt wird, so daß sich die Auslastung des verbleibenden Antriebsmotors verdoppelt und seine Regelcharakteristik durch den Betrieb im üblichen Lastbereich verbessert ist.From DE 3411853 A1 there is already a four- or six-roll stand with driven ones Back-up rolls have become known, in which the work rolls from the Back-up or intermediate rollers can be taken along by friction. To at operating conditions of the rolling stand, in which the drive is only a small one A fraction of the capacity is used, but the drive can still be controlled easily ensure and achieve a favorable utilization of the drive motors, it is proposed that one of the drive motors with its support roller over a manual transmission is connected and uncoupled from this support roller and is stopped, so that the utilization of the remaining drive motor doubled and its control characteristics through operation in the usual load range is improved.
Die Arbeitswalzen selbst weisen keinen Antrieb auf, sondern sind allenfalls mittels eines Synchrongetriebes miteinander verbunden, um einen möglichen Schlupf der Arbeitswalzen zu vermeiden. Ein rascher Umbau dieser Walzgerüste auf dickere Arbeitswalzen ist jedoch weder vorgesehen noch möglich, da der ausschließliche Antrieb der Stützwalzen und die Mitnahme der Arbeitswalzen durch Friktion bei dickeren Arbeitswalzen nicht möglich ist. The work rolls themselves have no drive, but are at best connected to each other by means of a synchronized gearbox to a possible Avoid slippage of the work rolls. A quick conversion of these roll stands on thicker work rolls is neither intended nor possible because the exclusive drive of the backup rolls and the entrainment of the work rolls is not possible due to friction with thicker work rolls.
Aus der Zusammenfassung der JP-A-62 - 197207 ist ein Sechswalzengerüst bekannt, bei dem die obere und die untere Zwischenwalze sowie die obere Arbeitswalze durch Spindeln angetrieben werden. Zur besseren Ausnutzung der Motoren ist vorgesehen, die Spindeln einzeln oder gekoppelt anzutreiben. Dazu werden in einem Getriebekasten durch Positionierung von Getrieberädern entsprechende Einstellmöglichkeiten vorgenommen. Nach dieser Erfindung besteht auch die Möglichkeit, einzelne Spindeln abzukoppeln. Ein Umbau dieser Vorrichtung auf dickere Arbeitswalzen ist jedoch nicht vorgesehen, da der auschließliche Antrieb von beiden Arbeitswalzen nicht möglich ist. Eine entsprechende Spindel wurde nicht berücksichtigt.A summary of JP-A-62-197207 discloses a six-roll stand, where the upper and lower intermediate roll and the upper work roll are driven by spindles. For better utilization of the engines provided to drive the spindles individually or coupled. This will be done in one Corresponding adjustment options by positioning gear wheels performed. According to this invention there is also the possibility uncouple individual spindles. A conversion of this device to thicker work rolls is not provided, however, because the exclusive drive from both work rolls not possible. A corresponding spindle was not considered.
Ausgehend von diesem Stand der Technik liegt der Erfindung daher die Aufgabe zugrunde, ein Walzgerüst vorzuschlagen, das eine rasche Anpassung an Wälzgüter unterschiedlicher Stärke und/oder Härte erlaubt. Starting from this prior art, the invention is therefore based on the object to propose a roll stand that allows rapid adaptation to rolling stock different strength and / or hardness allowed.
Um wahlweise mit geringem Aufwand sowohl dünne als auch dicke Arbeitswalzen in einem Gerüst betreiben zu können, wird erfindungsgemäß für ein Vierwalzengerüst vorgeschlagen, daß nicht nur eine der Stützwalzen über eine lösbare Einrichtung mit einem Motor verbunden ist, sondern daß auch die weitere, gegenüberliegende Stützwalze über eine lösbare Einrichtung mit einem Motor verbunden ist und den beiden Arbeitswalzen jeweils eine lösbare Einrichtung zugeordnet ist, die mit einem Motor verbunden ist.To choose both thin and thick work rolls with little effort To be able to operate in a stand is, according to the invention, for a four-roll stand suggested that not only one of the back-up rolls be detachable Device is connected to a motor, but that the other, opposite support roller via a detachable device with a motor is connected and the two work rolls each have a detachable device assigned, which is connected to a motor.
Für ein Sechswalzengerüst wird erfindungsgemäß vorgeschlagen, daß den über Antriebsspindeln antreibbaren Stützwalzen und Arbeitswalzen oder Zwischenwalzen und Arbeitswalzen oder Stützwalzen und Zwischenwalzen jeweils eine lösbare Einrichtung zugeordnet ist, die mit einem Motor verbunden ist.For a six-roll stand, the invention proposes that the Back-up rolls and work rolls or intermediate rolls that can be driven via drive spindles and work rolls or back-up rolls and intermediate rolls, respectively a detachable device is assigned, which is connected to a motor.
Dieser erfindungsgemäße, kombinierte Antrieb in dem Vierwalzen- bzw. Sechswalzengerüst ermöglicht es, dicke Arbeitswalzen über die ihnen zugeordnete lösbare Einrichtung direkt mit einem Motor zu verbinden, während beim Einsatz dünnerer Arbeitswalzen in einem Vierwalzengerüst der Antrieb über die beiden Stützwalzen erfolgt, die in diesem Fall über lösbare Einrichtungen mit dem Motor verbunden sind. Die dünnen Arbeitswalzen werden dann lediglich durch Friktion von den Stützwalzen mitgenommen. Übereinstimmend werden bei einem Sechswalzengerüst zum Betrieb der dünnen Arbeitswalzen lediglich die Stützwalzen und/oder die Zwischenwalzen über die ihnen zugeordneten lösbaren Einrichtungen mit dem Motor verbunden, während zum Betrieb der dickeren Arbeitswalzen lediglich die Arbeitswalzen über die ihnen zugeordneten lösbaren Einrichtungen mit einem Motor verbunden sind.This combined drive according to the invention in the four-roll or Six-roll stand allows thick work rolls to be assigned to them detachable device to connect directly to a motor, while at Use of thinner work rolls in a four-roll stand two back-up rolls, which in this case have detachable devices connected to the engine. The thin work rolls are then only carried by friction from the backup rollers. Be consistent with a six-roll stand to operate the thin work rolls only the back-up rolls and / or the intermediate rolls over those assigned to them detachable devices connected to the engine while operating the thicker work rolls only the work rolls over the assigned to them detachable devices are connected to a motor.
Im Sinne der Erfindung besteht eine Verbindung zwischen Walze und Motor nur dann, wenn ein direkter Kraftfluß von der Walze über die Spindel, die lösbare Einrichtung und gegebenenfalls ein zwischengeschaltetes Getriebe zum Motor besteht. Keine Verbindung zum Motor im Sinne dieser Definition hat eine Walze, die lediglich über Friktion von einer anderen, angetriebenen Walze mitgenommen wird. For the purposes of the invention, there is a connection between the roller and the motor only then when a direct flow of force from the roller over the spindle, the releasable Device and, if necessary, an intermediate gearbox to the engine consists. A roller has no connection to the motor in the sense of this definition, which is only taken over by friction from another driven roller becomes.
Als lösbare Einrichtung, die die Verbindung der Arbeitswalzen mit dem Motor ermöglichen, kommen insbesondere Kupplungen in Betracht, die insbesondere mechanisch, elektrisch, hydraulisch oder pneumatisch ausgeführt sein können.As a detachable device that connects the work rolls to the motor enable, in particular couplings come into consideration, which in particular can be mechanical, electrical, hydraulic or pneumatic.
Die Walzgerüste können jedoch auch so ausgestaltet sein, daß als lösbare Einrichtung die Treffer der Antriebsspindeln der Arbeitswalzen selbst wirken, wenn diese von den Antriebszapfen der Arbeitswalzen abgezogen werden. Hierfür können die Antriebsspindeln teleskopartig diese Abzugsbewegungen ermöglichend ausgeführt sein. Schließlich ist es in einer vorteilhaften und konstruktiv besonders einfachen Ausführung der Erfindung möglich, daß die dünnen Arbeitswalzen keine Antriebszapfen aufweisen und infolgedessen die Treffer der Antriebsspindeln außer Wirkung gelangen. Auch damit ist der der dünnen Arbeitswalze zugeordnete Treffer der Antriebsspindel von der Arbeitswalze gelöst. Die Antriebsspindeln für die Arbeitswalzen laufen dann lose mit.However, the roll stands can also be designed so that as a detachable device the hits of the drive spindles of the work rolls work themselves if these are removed from the drive pins of the work rolls. Therefor the drive spindles can telescopically enable these trigger movements be executed. Finally, it is advantageous and constructive particularly simple embodiment of the invention possible that the thin work rolls have no drive pins and consequently the hits of the Drive spindles become ineffective. That too is that of the thin work roll assigned hits of the drive spindle released from the work roll. The drive spindles for the work rolls then run loose.
Ein gleichmäßiger und kostengünstiger Antrieb sämtlicher Walzen läßt sich erzielen, wenn die Stütz- und Arbeits- und gegebenenfalls Zwischenwalzen von einem gemeinsamen Motor über ein Getriebe, insbesondere über ein Kammwalzgetriebe angetrieben werden. Alternativ ist es jedoch auch möglich, daß lediglich die beiden Arbeitswalzen mit einem gemeinsamen Arbeitswalzenmotor über ein Getriebe, insbesondere ein Kammwalzgetriebe verbunden sind, während den Stützwalzen jeweils ein separater oberer und unterer Motor zugeordnet ist.A uniform and cost-effective drive of all rollers can be achieved if the support and work and, if necessary, intermediate rolls of a common motor via a gear, especially via a worm gear are driven. Alternatively, however, it is also possible that only the two work rolls with a common work roll motor are connected via a gear, in particular a worm gear, while a separate upper and lower motor are assigned to the backup rolls is.
Der Abstand zwischen den Stütz- und gegebenenfalls Zwischenwalzen wird abhängig von dem Durchmesser der jeweiligen Arbeitswalze durch an sich bekannte Verstelleinrichtungen, wie beispielsweise Stufenkeile an der Gerüstoberseite und der Gerüstunterseite, angepaßt. The distance between the support and, if necessary, intermediate rolls depending on the diameter of the respective work roll by known Adjustment devices, such as step wedges on the top of the scaffold and the underside of the scaffold.
Vorteilhafte Betriebsweisen des erfindungsgemäßen Walzgerüstes für dünne
und dicke Arbeitswalzen sowie Arbeitswalzenkombinationen mit unterschiedlichen
Durchmessern ergeben sich aus den Merkmalen der Ansprüche 8 bis 11.Advantageous modes of operation of the roll stand according to the invention for thin
and thick work rolls as well as work roll combinations with different
Diameters result from the features of
Vorzugsweise kommen in den erfindungsgemäßen Walzgerüsten dünne Arbeitswalzen mit einem verschleißarmen Werkstoff, insbesondere pulvermetallurgische Arbeitswalzen (hochfeste HSS-Walzen) zum Einsatz. Diese Arbeitswalzen können beispielsweise nach dem HIP(Hot-Isostatic-Pressing)-Verfahren hergestellt werden.Thin work rolls preferably come in the roll stands according to the invention with a low-wear material, especially powder metallurgical Work rolls (high-strength HSS rolls) are used. These work rolls can, for example, according to the HIP (Hot Isostatic Pressing) process getting produced.
Nachfolgend wird die Erfindung anhand eines Vierwalzengerüstes näher erläutert:The invention is explained in more detail below on the basis of a four-roll stand:
Es zeigen
- Figur 1
- ein Vierwalzengerüst beim Betrieb von dünnen Arbeitswalzen sowie
Figur 2- ein Vierwalzengerüst beim Betrieb von dickeren Arbeitswalzen.
- Figure 1
- a four-roll stand when operating thin work rolls as well
- Figure 2
- a four-roll stand when operating thicker work rolls.
In Figur 1 sind schematisch die Stützwalzen 1 und 2 eines Vierwalzengerüstes
dargestellt, zwischen denen dünne Arbeitswalzen 4 und 5 für ein Walzgut 3 geringer
Stärke vorgesehen sind.In Figure 1, the
Zum Antrieb der Walzen 1,2,4,5 dient ein mit einem Kammwalzgetriebe 6 ausgestatteter
Antriebsmotor 7. Das Kammwalzgetriebe 6 besteht aus den beiden
mittleren Arbeitswalzengetrieberädem 8, 9 sowie einem oberen und einem unteren
Stützwalzengetrieberad 11, 12.To drive the
Sowohl den Stützwalzen 1, 2 als auch den Arbeitswalzen 4, 5 sind jeweils Antriebsspindeln
13,14,15,16 zugeordnet, die an über das Kammwalzgetriebe 6
mit dem Motor 7 verbunden sind. Die den Stützwalzen 1 und 2 zugeordneten
Antriebsspindeln 13, 16 weisen jeweils eine Schaltkupplung 17, 18 auf, die im
ausgerückten Zustand den Kraftfluß zwischen den Stützwalzen 1,2 und dem
Motor 7 unterbrechen.Both the support rolls 1, 2 and the work rolls 4, 5 are drive spindles, respectively
13,14,15,16 assigned to the via the
Zum Betrieb der in Figur 1 dargestellten dünnen Arbeitswalzen 4, 5 werden die
Schaltkupplungen 17, 18 eingerückt, um lediglich die Stützwalzen 1, 2 anzutreiben,
während die den dünnen Arbeitswalzen 4, 5 zugeordneten Antriebsspindeln
14, 15 lose mitlaufen. In dem gezeigten Ausführungsbeispiel besteht die
den dünnen Arbeitswalzen 4, 5 zugeordnete lösbare Einrichtung aus den Treffern
19, 21, die sich an den dem Kammwalzgetriebe 6 gegenüberliegenden Enden
der Spindeln 14, 15 befinden und dazu vorgesehen sind, mit den Antriebszapfen
von im Durchmesser dickeren Arbeitswalzen zusammenzuwirken. Da
die in Figur 1 dargestellten Arbeitswalzen 4,5 keine Antriebszapfen besitzen, ist
der Kraftfluß zwischen den dünnen Arbeitswalzen 4,5 und dem Motor 7 unterbrochen.To operate the thin work rolls 4, 5 shown in
Sollen nun betriebsbedingt, wie in Figur 2 dargestellt, dickere Arbeitswalzen 24,
25 zum Einsatz kommen, ist dies mit dem erfindungsgemäßen Vierwalzengerüst
problemlos möglich. Das Vierwalzengerüst nach Figur 2 unterscheidet sich
von dem nach Figur 1 darin, daß die beiden Stützwalzen 1, 2 unmittelbar über
ihre Antriebsspindeln 13, 16 mit einem separaten Stützwalzenmotor 26, 27 verbunden
sind. Dieser Unterschied ist jedoch für die Funktionsweise bedeutungslos.If, as shown in FIG. 2,
Die dickeren Arbeitswalzen 24, 25 besitzen nun Antriebszapfen 28, 29, die mit
den Treffern 19, 21 der Antriebsspindeln 14, 15 zusammenwirken. Der Kraftschluß
von den dickeren Arbeitswalzen 24, 25 ist damit über die Spindeln 14,
15 und das Kammwalzgetriebe 6 zum Motor 7 hergestellt, der in diesem Ausführungsbeispiel
ausschließlich die Arbeitswalzen 24,25 antreibt. The thicker work rolls 24, 25 now have drive pins 28, 29, which with
the
Die Schaltkupplungen 17, 18 der Antriebsspindeln 13, 16 für die Stützwalzen 1,
2 sind ausgerückt, so daß die Stützwalzen 1, 2 wirkungslos mitlaufen, während
die Stützwalzenmotoren 26, 27 abgeschaltet sind.The
Selbstverständlich ist es möglich, sowohl bei einem Vierwalzengerüst nach Figur
1 als auch nach Figur 2 auch in den Antriebsspindeln 14, 15 eine Schaltkupplung
vorzusehen, um den Kraftfluß zu dem Motor für die Arbeitswalzen zu
unterbrechen, wenn dünne Arbeitswalzen zum Einsatz kommen sollen.Of course it is possible, both with a four-roll stand according to the figure
1 and also according to FIG. 2 also a clutch in the
Um die Abstände zwischen den Stützwalzen 1 und 2 abhängig vom Durchmesser
der Arbeitswalzen 4, 5, 24, 25 anpassen zu können, sind sowohl an der Gerüstober-
als auch -unterseite in den Figuren nicht dargestellte Stufenkeile angeordnet.
Sämtliche Antriebsspindeln sind in an sich bekannter Weise als Gelenkwellen
ausgebildet, um den Versatz zu den getriebe- bzw. motorseitig fest
angeordneten Anschlagspunkten der Antriebsspindeln auszugleichen.To the distances between the
Im Ergebnis erlaubt die Erfindung eine rasche Anpassung an Walzgüter unterschiedlicher Stärke und/oder Härte, indem die Walzgerüste mit geringem Aufwand wahlweise sowohl mit dünnen als auch dickeren Arbeitswalzen betrieben werden können. Der hierzu erfindungsgemäß vorgeschlagene, kombinierte Antrieb in dem Vierwalzen- bzw. Sechswalzengerüst ermöglicht es, dicke Arbeitswalzen direkt mit einem Motor zu verbinden, während dünne Arbeitswalzen lediglich durch Friktion von benachbarten Stütz- oder Zwischenwalzen mitgenommen werden. As a result, the invention allows rapid adaptation to rolling stock of different types Strength and / or hardness by using the rolling stands with little effort optionally operated with both thin and thicker work rolls can be. The combined drive proposed according to the invention for this purpose in the four-roll or six-roll stand allows thick work rolls connect directly to a motor while thin work rolls only carried by friction from adjacent support or intermediate rollers become.
Claims (12)
- Four-high rolling stand with two working rolls and with two backing rolls drivable by way of drive spindles, wherein the two backing rolls are connected with a motor by way of a releasable device, characterised in that the two working rolls (4, 5) are each associated with a respective releasable device (19, 21) which connects the respective drive spindles (14, 15) with the working rolls (4, 5), wherein on use of working rolls (4, 5) which are thin in diameter, the devices (19, 21) are released and no connection to the motor is present and on use of thicker working rolls (4, 5) these are connected with a motor (7) by way of the devices (19, 21).
- Six-high rolling stand with two working rolls, two backing rolls as well as intermediate rolls arranged between the working rolls and the backing rolls, characterised in that the backing rolls or intermediate rolls drivable by way of drive spindles are each associated with a respective releasable device which is connected with one or more motors and that the two working rolls (4, 5) are each associated with a respective releasable device (19, 21) which connects the respective drive spindles (14, 15) with the working rolls (4, 5), wherein on use of working rolls (4, 5) which are thin in diameter the devices (19, 21) are released and no connections to the motor are present and on use of thicker working rolls (4, 5) these are connected by way of the devices (19, 21) with a motor (7).
- Roll stand according to claim 1 or 2, characterised in that the releasable devices for connecting the backing and/or working and/or intermediate rolls with the motor (7) or the motors (26, 27) are constructed as clutches, particularly switch clutches (17, 18).
- Roll stand according to one of claims 1 to 3, characterised in that the releasable connections associated with the working rolls (4, 5) are the couplings (19, 21), which cooperate with drive spigots (28, 29) of the working rolls, at the drive spindles (14, 15).
- Roll stand according to one of claims 1 to 4, characterised in that the working rolls (4, 5) do not have drive spigots.
- Roll stand according to one of claims 1 to 5, characterised in that the two working rolls (24, 25) are connected with a common working roll motor (7) by way of a transmission (6), particularly a pinion transmission.
- Roll stand according to one of claims 1 to 6, characterised in that the backing and working rolls and optionally the intermediate rolls are connected with a common motor (7) by way of a transmission (6), particularly a pinion transmission.
- Method for selectable operation of a four-high rolling stand according to claim 1, with first working rolls which are thin in diameter and second working rolls which are thicker in diameter, characterised in that for operation of the thin working rolls (4, 5) merely the backing rolls (1, 2) are driven by a motor (7, 26, 27) and for operation of a thicker working rolls (24, 25) merely the working rolls (24, 25) are driven by a motor (7, 26, 27).
- Method for simultaneous operation of a first working roll which is thinner in diameter and a second working roll which is thicker in diameter in a four-high rolling stand according to claim 1, characterised that for operation of the thin working roll merely the associated backing roll (1, 2) is driven by a motor (7, 26, 27) and for operation of the thicker working roll merely the working roll itself is driven by a motor 7, 26, 27).
- Method for selectable operation of a six-high rolling stand according to claim 2 with first working rolls which are thin in diameter and second working rolls which are thicker in diameter, characterised in that for operation of the thin working rolls merely the backing rolls and/or the intermediate rolls are driven by a motor and for operation of the thicker working rolls merely the working rolls are driven by a motor.
- Method for simultaneous operation of a first working roll which is thinner in diameter and a second working roll which is thicker in diameter in a six-high rolling stand according to claim 2, characterised in that for operation of the thinner working roll merely the associated backing roll and/or the intermediate roll is or are driven by a motor and for operation of the thicker working roll merely the working roll itself is driven by a motor.
- Method according to one of claims 8 to 11, characterised in that as thin working rolls there are used such with a low-wear material, particularly powder-metallurgical working rolls.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10046426 | 2000-09-20 | ||
| DE10046426A DE10046426A1 (en) | 2000-09-20 | 2000-09-20 | Four high rolling stand, used in rolling mill for rolling hot and cold strips, comprises two working rollers and supporting rollers driven by drive spindles with one supporting roller detachably connected to motor |
| PCT/EP2001/010521 WO2002024362A1 (en) | 2000-09-20 | 2001-09-12 | Combined drive for a four- or six-high rolling stand and an operating method for the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1318879A1 EP1318879A1 (en) | 2003-06-18 |
| EP1318879B1 true EP1318879B1 (en) | 2004-11-03 |
Family
ID=7656849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01967332A Expired - Lifetime EP1318879B1 (en) | 2000-09-20 | 2001-09-12 | Combined drive for a four- or six-high rolling stand and an operating method for the same |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7086264B2 (en) |
| EP (1) | EP1318879B1 (en) |
| JP (1) | JP4971579B2 (en) |
| CN (1) | CN1230261C (en) |
| AT (1) | ATE281251T1 (en) |
| DE (2) | DE10046426A1 (en) |
| RU (1) | RU2275262C2 (en) |
| TW (1) | TW495394B (en) |
| WO (1) | WO2002024362A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014174099A1 (en) * | 2013-04-26 | 2014-10-30 | Sms Siemag Ag | Method and rolling stand for cold rolling rolled stock |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2846579B1 (en) * | 2002-11-05 | 2006-05-05 | Vai Clecim | METHOD FOR EXTENDING THE RANGE OF PRODUCTION OF A PLANT ROLLING PLANT FOR METAL PRODUCTS AND INSTALLATION FOR CARRYING OUT THE METHOD |
| FR2851942B1 (en) * | 2003-03-05 | 2006-04-28 | METHOD FOR CHANGING THE CONFIGURATION OF A ROLLING MILL AND IMPROVED ROLLING MILL FOR IMPLEMENTING THE METHOD | |
| US7191629B1 (en) | 2006-04-13 | 2007-03-20 | Morgan Construction Company | Modular rolling mill |
| JP5568261B2 (en) * | 2009-07-22 | 2014-08-06 | 三菱日立製鉄機械株式会社 | Rolling mill and tandem rolling mill equipped with the rolling mill |
| CN102303045B (en) * | 2011-09-22 | 2013-05-29 | 燕山大学 | Four-roller and six-roller exchangeable rolling mill |
| US9120134B2 (en) | 2011-10-26 | 2015-09-01 | I2S, Llc | Methods of shifting and bending rolls in a rolling mill |
| JP6061775B2 (en) * | 2013-05-10 | 2017-01-18 | 株式会社神戸製鋼所 | Cluster type multi-high rolling mill |
| WO2015040040A1 (en) * | 2013-09-19 | 2015-03-26 | Voith Patent Gmbh | Shaft-hub connection, in particular connection between a roll neck and a wobbler for use in rolling mills |
| AT515177B1 (en) * | 2013-12-10 | 2015-08-15 | Asmag Holding Gmbh | Drive system and profiling system equipped therewith |
| KR20150107327A (en) * | 2014-03-14 | 2015-09-23 | (주) 한양테크 | Driving device for pipe rolling |
| CN104889171B (en) * | 2015-06-03 | 2017-01-18 | 辽宁科技大学 | Support roll bilateral direct transmission gear of four-roll plate and strip rolling mill |
| CN105710134A (en) * | 2016-05-06 | 2016-06-29 | 山西创奇实业有限公司 | Multiple-transmission device for rolling mill |
| CN107661901A (en) * | 2016-07-31 | 2018-02-06 | 湖北大帆汽车零部件有限公司 | Novel cold rolling machine is used in a kind of diaphragm spring production |
| CN106583452B (en) * | 2017-01-05 | 2018-05-15 | 东北大学 | A kind of optional metal polar thin hoop mill of the kind of drive and its milling method |
| CN106944481B (en) * | 2017-04-07 | 2018-10-26 | 浙江伟联科技股份有限公司 | A kind of many types of metal forming power input device |
| AT522073B1 (en) * | 2019-05-16 | 2020-08-15 | Primetals Technologies Austria GmbH | Hot rolling with flexible roll stand configuration |
| CN114786832A (en) * | 2019-12-11 | 2022-07-22 | Sms集团有限公司 | Hot rolling stand for a hot rolling mill and for producing a metallic flat product, hot rolling mill and method for operating a hot rolling mill |
| CN113334474B (en) * | 2021-07-30 | 2021-11-30 | 四川凯力威科技股份有限公司 | Roller barrel |
| IT202200006743A1 (en) * | 2022-04-05 | 2023-10-05 | Danieli Off Mecc | CAGE, GROUP AND ROLLING PROCEDURE |
| CN114904912A (en) * | 2022-06-02 | 2022-08-16 | 安徽工业大学 | Device for producing metal ultrathin strip by using same-side transmission combination forming rolling |
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| US2039959A (en) * | 1933-12-28 | 1936-05-05 | Mesta Machine Co | Rolling mill |
| US2629272A (en) * | 1947-07-09 | 1953-02-24 | Erwin Loewy | Rolling mill control |
| US4478064A (en) * | 1982-03-04 | 1984-10-23 | Olin Corporation | Modifications to a cooperative rolling system for increasing _maximum attainable reduction per pass |
| DE3411853A1 (en) * | 1984-03-30 | 1985-10-10 | SMS Schloemann-Siemag AG, 4000 Düsseldorf | DRIVEN SUPPORT ROLLERS HAVING FOUR OR SIX ROLLERS |
| JPH06242B2 (en) * | 1984-12-29 | 1994-01-05 | 石川島播磨重工業株式会社 | Rolling mill |
| JPS6268613A (en) * | 1985-09-20 | 1987-03-28 | Hitachi Ltd | Roll driving device for rolling mill |
| JPS62197207A (en) * | 1985-10-09 | 1987-08-31 | Hitachi Ltd | Driving device for rolling mill |
| JPS62158588A (en) * | 1986-01-06 | 1987-07-14 | Kawasaki Steel Corp | Laser beam dull working method for cold rolling roll |
| ATE57114T1 (en) * | 1986-03-04 | 1990-10-15 | Mannesmann Ag | ROLLER ROLLER. |
| JPH07121404B2 (en) * | 1986-10-13 | 1995-12-25 | 株式会社日立製作所 | Roll drive for rolling mill |
| JPH0796121B2 (en) * | 1988-10-31 | 1995-10-18 | 株式会社日立製作所 | Rolling mill capable of switching between 4 and 5 stages |
| DE69224725T2 (en) * | 1991-11-29 | 1998-07-02 | Kawasaki Steel Co | Four-roll sizing mill for the production of round steel bars |
| JP3543894B2 (en) * | 1996-06-12 | 2004-07-21 | 石川島播磨重工業株式会社 | Work roll cloth rolling mill and its control method |
| JP3307551B2 (en) * | 1996-07-02 | 2002-07-24 | 株式会社日立製作所 | Drive for rolling mill, rolling mill and rolling method |
-
2000
- 2000-09-20 DE DE10046426A patent/DE10046426A1/en not_active Withdrawn
-
2001
- 2001-09-12 WO PCT/EP2001/010521 patent/WO2002024362A1/en active IP Right Grant
- 2001-09-12 AT AT01967332T patent/ATE281251T1/en active
- 2001-09-12 DE DE50104428T patent/DE50104428D1/en not_active Expired - Lifetime
- 2001-09-12 EP EP01967332A patent/EP1318879B1/en not_active Expired - Lifetime
- 2001-09-12 CN CNB018159869A patent/CN1230261C/en not_active Expired - Fee Related
- 2001-09-12 US US10/381,169 patent/US7086264B2/en not_active Expired - Fee Related
- 2001-09-12 RU RU2003111155/02A patent/RU2275262C2/en not_active IP Right Cessation
- 2001-09-12 JP JP2002528421A patent/JP4971579B2/en not_active Expired - Fee Related
- 2001-09-19 TW TW090123070A patent/TW495394B/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014174099A1 (en) * | 2013-04-26 | 2014-10-30 | Sms Siemag Ag | Method and rolling stand for cold rolling rolled stock |
| DE102014207859A1 (en) | 2013-04-26 | 2014-10-30 | Sms Siemag Ag | Process and rolling stand for cold rolling of rolling stock |
| CN105142810A (en) * | 2013-04-26 | 2015-12-09 | Sms集团有限公司 | Method and rolling stand for cold rolling rolled stock |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002024362A1 (en) | 2002-03-28 |
| TW495394B (en) | 2002-07-21 |
| ATE281251T1 (en) | 2004-11-15 |
| DE10046426A1 (en) | 2002-03-28 |
| US7086264B2 (en) | 2006-08-08 |
| RU2275262C2 (en) | 2006-04-27 |
| JP2004508935A (en) | 2004-03-25 |
| US20030167817A1 (en) | 2003-09-11 |
| JP4971579B2 (en) | 2012-07-11 |
| EP1318879A1 (en) | 2003-06-18 |
| CN1461246A (en) | 2003-12-10 |
| DE50104428D1 (en) | 2004-12-09 |
| CN1230261C (en) | 2005-12-07 |
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