EP1687104A1 - Adjusting roll in rolling frames, among others vertical upset forging frames - Google Patents

Adjusting roll in rolling frames, among others vertical upset forging frames

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Publication number
EP1687104A1
EP1687104A1 EP04790637A EP04790637A EP1687104A1 EP 1687104 A1 EP1687104 A1 EP 1687104A1 EP 04790637 A EP04790637 A EP 04790637A EP 04790637 A EP04790637 A EP 04790637A EP 1687104 A1 EP1687104 A1 EP 1687104A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
piston
pressure
phase
adjusting cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04790637A
Other languages
German (de)
French (fr)
Other versions
EP1687104B1 (en
Inventor
Florian Lindner
Stefan Wendt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Demag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1687104A1 publication Critical patent/EP1687104A1/en
Application granted granted Critical
Publication of EP1687104B1 publication Critical patent/EP1687104B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting
    • 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
    • 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
    • B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • B21B31/06—Fastening stands or frames to foundation, e.g. to the sole plate
    • 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
    • B21B31/16—Adjusting or positioning rolls

Definitions

  • the invention relates to positioning cylinders for long, fast lifting movements in roll stands, u. a. those in vertical edging stands, each comprising at least one piston which acts on both sides of a work roll for adjustment via bearing chocks of at least one work roll or an intermediate roll.
  • the adjusting device in vertical upsetting stands like the ones in horizontal stands, has the task of setting, maintaining and regulating the required roll gap.
  • adjustment devices are known as purely mechanical, as purely hydraulic or as a combination of mechanical and hydraulic adjustment. It is technically possible and sensible to arrange one or two positions on each side.
  • a purely hydraulic adjusting device in vertical upsetting stands in the roughing stand upsetting of a hot strip mill is known.
  • This is designed as a classic differential cylinder, consisting of a piston, cylinder cover and cylinder base.
  • this version has limits both in the required oil requirement and thus the travel speed as well as in the sensitivity to lateral force when the piston rod is fully extended.
  • the document US 36 24 958 describes a positioning control device for vertical compression stands for width control of the rolling material by means of an electrical screw adjustment device, combined with hydraulic servo-controlled cylinder adjustment devices for adjustments against rolling load.
  • the cylinders are arranged on the side of the column crossheads of the vertical frames and are connected to the sliding nuts of the screw adjustment by means of a coupling plate.
  • the document DE-OS 32 12 525 A1 describes an electrohydraulic roll gap control and adjustment device for, in particular, the rolls of a vertical stand, consisting of an adjustment cylinder, the adjustment piston of which can move in a cylinder bore under the effect of pressure changes in a pressure medium, and an immersion piston, the immersed in the pressure medium and whose movements controlled by a hydraulic lifting device cause the displacements of the adjusting piston, the hydraulic lifting device being controlled by a servo valve, as well as with a scanning device for detecting the rolling forces by pressure measurement, a measuring direction for determining the actual position of the plunger and from a comparator processing the actual position of the plunger for the purpose of obtaining a change signal.
  • the adjusting spindle is designed as a hollow body with an axial through bore of different diameter sections, the through bore of the adjusting spindle accommodating the hydraulic piston-cylinder units for width and / or thickness control.
  • the document US-PS 4,658,622 A describes an edge rolling mill with a pair of oppositely arranged vertical rolls.
  • Each roller is provided with a drive that comprises two drive sections in generally parallel orientations.
  • the first drive section is coupled to a drive wheel by means of a serrated design, in particular for a relatively larger one Adjustment of the roll gap when the stand is not under load.
  • the second drive section is connected to the first drive section, also by means of a splined connection, which enables lower settings of the roll gap when the roll stand is working under load.
  • the document EP 0 493 430 B1 describes an edge rolling mill with a vertically arranged, movable housing pair, and with means for displacing each movable housing in the horizontal direction towards and away from the other housing and with a pair of rollers, the longitudinal axes of which are arranged in the vertical direction are.
  • the rollers are rotatably held in the corresponding cassettes.
  • the cassettes are held by correspondingly movable housings so that they can be moved with them and are located inside the housing.
  • Means are also provided for displacing each cassette in the vertical direction with respect to its associated movable housing.
  • Document EP 0 491 785 B1 describes a vertical rolling train with two vertically movable housings, two rollers arranged vertically with their longitudinal axes and rotatably fastened in associated cassettes, the cassettes being supported by movable housings and being arranged within the housings.
  • Means are provided for displacing each movable housing and the associated cassette in the horizontal direction towards or away from the other housing and a device for displacing each cassette relative to its housing in the horizontal direction towards and away from the other cassette.
  • Each housing has a drive mechanism, the output side of which is in drive relationship with the lower end of the roller in the associated cassette and the input side of which is in drive relationship with a horizontal drive shaft.
  • Each drive mechanism has a universal joint which enables a drive to be transmitted from the shaft to the roller, even if the cassette is offset by a certain amount horizontally relative to its housing.
  • the document DE-OS 2 047 240 discloses a method for rolling in a vertical stand, the roll gap being controlled automatically during the rolling. First a flat edge profile is rolled across its side edges in a vertical stand and then in a horizontal stand. The rolling gap of the vertical stand is automatically changed when the end pieces of the flat profile are rolled so that their dimensions do not differ significantly from those of the other flat profile during subsequent flat rolling.
  • the document EP 0 868 946 A2 discloses a compression frame downstream of a continuous caster and upstream of a finishing train. This is to be controlled in such a way that the sliver can safely run into the first stand of the finishing train, with a structural change in the strip edge region being to be ensured in order to avoid cracks in the strip edge region.
  • pressure control loops for the compression degree monitoring as well as overload limitation and differential load monitoring are superimposed on the position control loops for the compression frame.
  • Document EP 0 450 294 B1 discloses an adjusting device for adjusting the roller spacing in rolling stands, in particular in strip rolling stands for hot or cold rolling, with at least two hydraulic adjusting cylinders which work on both sides of a work roll to be adjusted in each case via chocks and, if necessary, an intermediate support roller.
  • the positioning cylinders each have a hat piston guided in a cylinder housing on a cylinder journal and in a cylinder collar, the central piston surface of which is formed by the inner hat bottom and the ring piston surface which is formed by the hat rim can be acted upon independently of one another or individually or jointly with pressure medium.
  • the invention comprises the object of making it possible to improve the known purely hydraulic adjusting devices, the number of adjusting cylinders not being fixed should be, so that the arrangement of only one cylinder per side should remain technically possible.
  • each pitch cylinder is equipped with a second piston rod in such a way that each pitch cylinder has a piston with two piston rods in opposite directions Is equipped with directions, and the piston is inserted in a recess in the cylinder base or cylinder cover, these having coaxially arranged bores for the passage of the piston rods.
  • the design of the adjusting cylinder according to the invention is based on a support length that is the same over the entire cylinder stroke, the cross-sectional area of the second piston rod considerably reducing the required oil requirement and thus achieving a higher travel speed with the same pump output.
  • the application of the invention is not limited to a vertical compression frame in heavy plate systems, but can also be used with advantage in other frames of other systems.
  • a further advantage of this invention enables an optimization of oil demand and travel speed:
  • the proposed encapsulation of the second piston rod is designed as an additional cylinder oil space.
  • a corresponding control can be used to produce a short circuit between the emptying and the additional filling oil space of the cylinder during the rolling force-free movement in the direction of the rolling stock. This reduces the additional pump output.
  • a short circuit can be created between the two oil spaces on the additional rod side. This makes it possible to apply the required rolling force with the complete piston surface.
  • Figure 1 shows the schematic adjusting cylinder with piston, piston rod, seals and the like
  • FIG. 2 shows the schematic control of the positioning cylinder for fast forward movement, upsetting and fast return movement
  • FIG. 3 shows the positioning cylinders in the installation situation, for example in a compression frame
  • Figure 4 shows a positioning cylinder with two pressure chambers
  • FIG. 5 an adjusting cylinder with three pressure spaces
  • Figure 6 shows a plunger cylinder with a pressure chamber
  • Figure 7 shows a plunger cylinder with two pressure chambers.
  • the positioning cylinder consists of the piston (KO) with the rod (ST1) and the rod (ST2).
  • the piston is embedded in the cylinder cover (ZD) and the cylinder base (ZB), both of which have coaxially arranged bores for the passage of the piston rods.
  • receptacles for piston guide elements which are designed here as metal bushings (BU1), (BU2).
  • BU1, BU2 Both metal bushings (BU1), (BU2) are held by corresponding covers (DE1), (DE2).
  • the seals belonging to the cylinder (DM - DI3) are located in the cover (DE1), in the piston (KO) and in the cylinder base (ZB).
  • the cylinder base (ZB) and cylinder cover (ZD) are screwed together with the screws (SR2).
  • the complete positioning cylinder is screwed to the stand of the roll stand with the screws (SR1).
  • demand rod (ST1) is a pressure piece (DS).
  • the rod (ST1) is protected with a bellows (FB).
  • the bellows (FB) is either supported on the rod (ST1) by means of sliding disks or is held by means of loops on guide rods (not shown here).
  • the cylinder piston has an anti-rotation device, which is either designed as a frame connection (not shown here) between the pressure pieces (DS) of two stacking cylinders arranged one above the other or consists of extensions of the pressure piece (DS) which are guided in the guide rods already mentioned.
  • a capsule (KA) which protects the rod (ST2) on the one hand and on the other hand has the option of being used as an additional oil chamber (OL3).
  • a position measuring system here designed as a position encoder (PG), which takes up the position of the cylinder piston.
  • FIGS. 4 and 5 The design of the adjusting cylinder in FIGS. 4 and 5 is analogous. 6 and 7, the cylinder cover and cylinder base are part (PB) and the piston (KO) consists only of the adjusting cylinder rods (ST3, ST4).
  • the oil spaces (OL1, OL2, OL3) shown in FIG. 5 form the force-relevant ring areas A1 and A2 or the circular area A3.
  • Phase 1 fast approach with reduced force: pressure on surface A2; Areas A1 and A3 are as depressurized as possible (P 2 »0; p ⁇ * 0) optimal: A1 «A3; Lines 1 and 3 can be connected, oil then flows from line 1 to line 3 or the corresponding exchange of areas A2 and A3
  • Phase 2 upsetting with high force pressure on surface A2 and surface A3; Area A1 ⁇ areas A2 + A3
  • Phase 3 rapid return pressure on area A1; Areas A2 and A3 are depressurized or pressurized.
  • FIG. 3 shows the installation situation of four different types of positioning cylinders in a compression frame.
  • the design with two piston rods is common to all designs.
  • the starting cylinder is used in a compression frame, it is installed four times in accordance with FIG. 3;
  • Two adjusting cylinders on each side which are arranged above and below the center plane (9).
  • the cylinders are inserted in corresponding bores in the upsetting stand (8) and act on the upsetting rollers (7).
  • the balancing cylinder (5) pushes the play out of the overall system.
  • the balancing cylinder (5) can also act as a retraction cylinder.
  • FIGS. 4 to 7 The following cylinder embodiments are shown in FIGS. 4 to 7:
  • FIG. 4 shows a positioning cylinder with 2 pressure spaces and the effective areas A1 and A2
  • FIG. 5 shows a positioning cylinder with 3 pressure spaces and the effective areas A1, A2 and A3
  • FIG. 6 shows a plunger cylinder with 1 pressure space and the effective area A2
  • Figure 7 shows a plunger cylinder with 2 pressure chambers and the effective areas A2 and A3.
  • the driving style of the individual construction methods can be selected according to the necessary specifications, e.g. B. according
  • Figure 4 Double-acting cylinder with pressurization of the ring surface A2 for rapid advancement and for applying the rolling force, ring surface A1 is pressurized for retracting the cylinder
  • Figure 5 Double-acting cylinder with pressurization of the annular surface A2 and / or circular surface A3 for rapid advancement and use of the annular surface A2 and / or circular surface A3 to apply the rolling force, annular surface A1 is pressurized to retract the cylinder
  • FIG. 7 plunger cylinder with pressurization of the annular surface A2 and / or circular surface A3 for rapid advancement and use of the annular surface A2 and / or circular surface A3 for applying the rolling force, balancing cylinder (5) acts as a retracting cylinder
  • annular area A1 is depressurized, balancing cylinder (5) acts as a retraction cylinder. or single-acting cylinder with pressurization of the ring surface
  • Differential circuits of the pressure spaces A1 and / or A2 and / or A3 z. B. to apply the required amounts of oil are also conceivable.
  • the individual pressure chambers are pressurized via solenoid valves, servo valves, non-return valves, pumps, containers, pressure vessels, accumulators etc. in accordance with the state of the art.

Abstract

An adjusting cylinder for long, rapid lifting movements in rolling stands, including vertical edging stands, wherein each adjusting cylinder has at least one piston which acts through the bearing chocks of at least one work roll or of an interposed roll to adjust a work roll on both sides, wherein each adjusting cylinder has a piston that is equipped with two oppositely directed piston rods, and each piston is inserted in a recess in the cylinder base or cylinder cover, such that the base and cover have coaxially arranged bores through which the piston rods pass. The surface formed by the piston and the piston rod is smaller than the surface formed by the piston and the piston rod.

Description

Anstellzylinder in Walzgerüsten, unter anderem in Vertikal-StauchgerüstenPositioning cylinders in roll stands, including vertical upsetting stands
Die Erfindung betrifft Anstellzylinder für lange, schnelle Hubbewegungen in Walzgerüsten, u. a. solche in Vertikal-Stauchgerüsten, umfassend zumindest jeweils einen Kolben, welcher über Lagereinbaustücke zumindest einer Arbeitswalze oder einer zwischengeschalteten Walze beidseitig auf eine Arbeitswalze zum Anstellen einwirkt.The invention relates to positioning cylinders for long, fast lifting movements in roll stands, u. a. those in vertical edging stands, each comprising at least one piston which acts on both sides of a work roll for adjustment via bearing chocks of at least one work roll or an intermediate roll.
Die AnStelleinrichtung in Vertikal-Stauchgerüsten hat ebenso wie die in Horizontalgerüsten die Aufgabe, den erforderlichen Walzspalt einzustellen, zu halten und bei Bedarf zu regeln.The adjusting device in vertical upsetting stands, like the ones in horizontal stands, has the task of setting, maintaining and regulating the required roll gap.
In Vertikal-Stauchgerüsten sind AnStelleinrichtungen als rein mechanische, als rein hydraulische bzw. als eine Kombination aus mechanischer und hydraulischer Anstellung bekannt. Technisch möglich und sinnvoll ist die Anordnung von einer oder zwei Anstellungen je Seite.In vertical compression stands, adjustment devices are known as purely mechanical, as purely hydraulic or as a combination of mechanical and hydraulic adjustment. It is technically possible and sensible to arrange one or two positions on each side.
Bekannt ist beispielsweise eine rein hydraulische AnStelleinrichtung in Vertikal- Stauchgerüsten beim Vorgerüst-Staucher einer Warmbandstraße. Diese ist als ein klassischer Differentialzylinder, bestehend aus Kolben, Zylinderdeckel und Zylinderboden ausgeführt.For example, a purely hydraulic adjusting device in vertical upsetting stands in the roughing stand upsetting of a hot strip mill is known. This is designed as a classic differential cylinder, consisting of a piston, cylinder cover and cylinder base.
Grenzen hat jedoch diese Ausführung sowohl in dem erforderlichen Ölbedarf und damit der Verfahrgeschwindigkeit als auch in der Querkraftempfindlichkeit bei voll ausgefahrener Kolbenstange.However, this version has limits both in the required oil requirement and thus the travel speed as well as in the sensitivity to lateral force when the piston rod is fully extended.
Die bekannte Problematik hat eine rein hydraulische Anstellung in Vertikal- Stauchgerüsten für Grobblechanlagen bisher als schwer beherrschbar erschei- nen lassen. Denn es ist wichtig mit sehr hoher Geschwindigkeit einen sehr lan- gen Hub zu fahren, weil nach dem Drehen eines Bleches innerhalb kurzer Zeit von minimalem Walzspalt auf maximalem Walzspalt gefahren werden muss.The known problem has hitherto made a purely hydraulic adjustment in vertical upsetting stands for heavy plate systems appear to be difficult to control. Because it is important to have a very long to drive towards the stroke because after turning a sheet metal, it is necessary to move from the minimum roll gap to the maximum roll gap within a short time.
Das Dokument US 36 24 958 beschreibt eine Positioniersteuereinrichtung für vertikale Stauchgerüste zur Breitenregelung des Walzmaterials mittels elektri- scher Schraubenspindelverstelleinrichtung, kombiniert mit hydraulischen servo- ventil- geregelten Zylinderverstelleinrichtungen für Verstellungen gegen Walzlast. Die Zylinder sind seitlich an den Ständerquerhäuptern der Vertikalgerüste angeordnet und sind mittels einer Koppelplatte mit den Verschiebemuttern der Schraubspindelverstellung verbunden.The document US 36 24 958 describes a positioning control device for vertical compression stands for width control of the rolling material by means of an electrical screw adjustment device, combined with hydraulic servo-controlled cylinder adjustment devices for adjustments against rolling load. The cylinders are arranged on the side of the column crossheads of the vertical frames and are connected to the sliding nuts of the screw adjustment by means of a coupling plate.
Das Dokument DE-OS 32 12 525 A1 beschreibt eine elektrohydraulische Walzspaltregelung- und Anstellvorrichtung für insbesondere die Walzen eines Vertikalgerüstes, bestehend aus einem Verstellzylinder, dessen Verstellkolben sich in einer Zylinderbohrung unter der Wirkung von Druckänderungen in einem Druckmittel verschieben kann, und aus einem Tauchkolben, der in das Druckmittel eintaucht und dessen von einer hydraulischen Hubvorrichtung gesteuerte Bewegungen die Verschiebungen des Verstellkolbens bewirken, wobei die hydraulische Hubvorrichtung von einem Servoventil gesteuert ist, sowie mit einer Abtastvorrichtung zur Erfassung der Walzkräfte durch Druckmessung, einer Messrichtung zur Ermittlung Ist-Lage des Tauchkolbens und aus einem die Soli- Ist-Lage des Tauchkolbens zwecks Gewinnung eines Änderungssignals verarbeitenden Vergleicher. Die Anstellspindel ist als Hohlkörper mit einer axialen Durchgangsbohrung unterschiedlicher Durchmesserabschnitte ausgebildet, wobei die Durchgangsbohrung der Anstellspindel die hydraulischen Kolben- Zylindereinheiten zur Breiten- und/oder Dickenregelung aufnimmt.The document DE-OS 32 12 525 A1 describes an electrohydraulic roll gap control and adjustment device for, in particular, the rolls of a vertical stand, consisting of an adjustment cylinder, the adjustment piston of which can move in a cylinder bore under the effect of pressure changes in a pressure medium, and an immersion piston, the immersed in the pressure medium and whose movements controlled by a hydraulic lifting device cause the displacements of the adjusting piston, the hydraulic lifting device being controlled by a servo valve, as well as with a scanning device for detecting the rolling forces by pressure measurement, a measuring direction for determining the actual position of the plunger and from a comparator processing the actual position of the plunger for the purpose of obtaining a change signal. The adjusting spindle is designed as a hollow body with an axial through bore of different diameter sections, the through bore of the adjusting spindle accommodating the hydraulic piston-cylinder units for width and / or thickness control.
Das Dokument US-PS 4,658,622 A beschreibt ein Kantenwalzwerk mit einem Paar entgegengesetzt angeordneter Vertikalwalzen. Jede Walze ist mit einem Antrieb versehen, der zwei Antriebssektionen in generell parallelen Ausrichtun- gen umfasst. Die erste Antriebssektion ist mittels einer kerbverzahnten Ausbildung mit einem Antriebsrad gekoppelt, insbesondere für eine relativ größere Einstellung des Walzspaltes, wenn das Gerüst sich nicht unter Last befindet. Die zweite Antriebssektion ist mit der ersten Antriebssektion verbunden, und zwar ebenfalls mittels einer kerbverzahnten Verbindung, welche geringere Einstellungen des Walzspalts ermöglicht, wenn das Walzgerüst unter Last arbeitet.The document US-PS 4,658,622 A describes an edge rolling mill with a pair of oppositely arranged vertical rolls. Each roller is provided with a drive that comprises two drive sections in generally parallel orientations. The first drive section is coupled to a drive wheel by means of a serrated design, in particular for a relatively larger one Adjustment of the roll gap when the stand is not under load. The second drive section is connected to the first drive section, also by means of a splined connection, which enables lower settings of the roll gap when the roll stand is working under load.
Das Dokument EP 0 493 430 B1 beschreibt ein Kantenwalzwerk mit einem vertikal angeordneten, bewegbaren Gehäusepaar, sowie mit Mitteln zum Versetzen jedes bewegbaren Gehäuses in horizontaler Richtung auf das andere Gehäuse zu, und von diesem fort und mit einem Walzenpaar, dessen Längsachsen in vertikaler Richtung angeordnet sind. Die Walzen sind drehbar in entspre- chenden Kassetten gehalten. Die Kassetten werden von entsprechend bewegbaren Gehäusen so gehalten, dass sie mit ihnen bewegt werden und sich im Inneren des Gehäuses befinden. Ferner sind Mittel zum Versetzen jeder Kassette in vertikaler Richtung gegenüber ihrem zugeordneten bewegbaren Gehäuse vorgesehen.The document EP 0 493 430 B1 describes an edge rolling mill with a vertically arranged, movable housing pair, and with means for displacing each movable housing in the horizontal direction towards and away from the other housing and with a pair of rollers, the longitudinal axes of which are arranged in the vertical direction are. The rollers are rotatably held in the corresponding cassettes. The cassettes are held by correspondingly movable housings so that they can be moved with them and are located inside the housing. Means are also provided for displacing each cassette in the vertical direction with respect to its associated movable housing.
Das Dokument EP 0 491 785 B1 beschreibt eine Vertikalwalzstraße mit zwei vertikalen bewegbaren Gehäusen, zwei mit ihren Längsachsen vertikal angeordneten und in zugehörigen Kassetten drehbar befestigten Walzen, wobei die Kassetten von bewegbaren Gehäusen gestützt und innerhalb der Gehäuse an- geordnet sind. Vorgesehen ist eine Einrichtung zum Verschieben jedes bewegbaren Gehäuses und der diesem zugeordneten Kassette in Horizontalrichtung zum anderem Gehäuse hin oder von diesem weg und eine Einrichtung zum Verschieben jeder Kassette gegenüber ihrem Gehäuse in horizontaler Richtung zur anderen Kassette hin und von diesen weg. Jedes Gehäuse besitzt einen Antriebsmechanismus, dessen Ausgangsseite in Antriebsbeziehungen mit dem unteren Ende der Walze in der zugehörigen Kassette und dessen Eingangsseite sich in Antriebsbeziehung mit einer horizontalen Antriebswelle befindet. Jeder Antriebsmechanismus weist ein Universalgelenk auf, das einen von der Welle auf die Walze übertragenden Antrieb ermöglicht, sogar wenn die Kasset- te um ein bestimmtes Maß horizontal gegenüber ihrem Gehäuse versetzt ist. Das Dokument DE-OS 2 047 240 offenbart ein Verfahren zum Walzen in einem Vertikalgerüst, wobei der Walzspalt während des Walzens automatisch gesteuert wird. Zunächst wird ein Flachkantprofil über seine Seitenkanten in einem Vertikalgerüst und anschließend in einem Horizontalgerüst in die Breite gewalzt. Der Walzspalt des Vertikalgerüstes wird beim Walzen der Endstücke des Flach- kantprofiles automatisch so verändert, dass deren Abmessungen beim anschließenden Flachwalzen nicht wesentlich von denen des übrigen Flachkantprofiles abweichen.Document EP 0 491 785 B1 describes a vertical rolling train with two vertically movable housings, two rollers arranged vertically with their longitudinal axes and rotatably fastened in associated cassettes, the cassettes being supported by movable housings and being arranged within the housings. Means are provided for displacing each movable housing and the associated cassette in the horizontal direction towards or away from the other housing and a device for displacing each cassette relative to its housing in the horizontal direction towards and away from the other cassette. Each housing has a drive mechanism, the output side of which is in drive relationship with the lower end of the roller in the associated cassette and the input side of which is in drive relationship with a horizontal drive shaft. Each drive mechanism has a universal joint which enables a drive to be transmitted from the shaft to the roller, even if the cassette is offset by a certain amount horizontally relative to its housing. The document DE-OS 2 047 240 discloses a method for rolling in a vertical stand, the roll gap being controlled automatically during the rolling. First a flat edge profile is rolled across its side edges in a vertical stand and then in a horizontal stand. The rolling gap of the vertical stand is automatically changed when the end pieces of the flat profile are rolled so that their dimensions do not differ significantly from those of the other flat profile during subsequent flat rolling.
Das Dokument EP 0 868 946 A2 offenbart ein einer Stranggießanlage nach- und einer Fertigstraße vorgeschaltetes Stauchgerüst. Dieses soll so gesteuert werden, dass das Vorband sicher in das erste Gerüst der Fertigstraße einlaufen kann, wobei zur Vermeidung von Rissen im Bandkantenbereich eine Gefügeumwandlung im Bandkantenbereich sichergestellt sein soll. Dazu wird vorgeschlagen, dass den Positionsregelkreisen für das Stauchgerüst Druckregelkrei- se zur Stauchgradüberwachung sowie Überlastbegrenzung und Differenzlast- Überwachung überlagert sind.The document EP 0 868 946 A2 discloses a compression frame downstream of a continuous caster and upstream of a finishing train. This is to be controlled in such a way that the sliver can safely run into the first stand of the finishing train, with a structural change in the strip edge region being to be ensured in order to avoid cracks in the strip edge region. For this purpose, it is proposed that pressure control loops for the compression degree monitoring as well as overload limitation and differential load monitoring are superimposed on the position control loops for the compression frame.
Das Dokument EP 0 450 294 B1 offenbart eine Anstellvorrichtung zum Einstellen des Walzenabstandes in Walzgerüsten, insbesondere in Bandwalzgerüsten für Warm- oder Kaltwalzung, mit mindestens zwei hydraulischen Anstellzylin- dern, die über Einbaustücke und ggf. zwischengeschalteter Stützwalze beidseitig auf eine jeweils anzustellende Arbeitswalze arbeiten. Die Anstellzylinder weisen jeweils einen in einem Zylindergehäuse auf einem Zylinderzapfen und in einem Zylinderkragen geführten Hutkolben auf, dessen von dem inneren Hut- boden gebildete Zentralkolbenfläche und von dem Hutrand gebildete Ringkolbenfläche unabhängig voneinander bzw. einzeln oder gemeinsam mit Druckmedium beaufschlagbar sind.Document EP 0 450 294 B1 discloses an adjusting device for adjusting the roller spacing in rolling stands, in particular in strip rolling stands for hot or cold rolling, with at least two hydraulic adjusting cylinders which work on both sides of a work roll to be adjusted in each case via chocks and, if necessary, an intermediate support roller. The positioning cylinders each have a hat piston guided in a cylinder housing on a cylinder journal and in a cylinder collar, the central piston surface of which is formed by the inner hat bottom and the ring piston surface which is formed by the hat rim can be acted upon independently of one another or individually or jointly with pressure medium.
Ausgehend vom vorgenannten Stand der Technik umfasst die Erfindung die Aufgabe, eine Verbesserung der bekannten rein hydraulischen Anstelleinrich- tungen zu ermöglichen, wobei die Anzahl der Anstellzylinder nicht festgelegt sein soll, so dass auch die Anordnung von nur einem Zylinder je Seite technisch möglich bleiben soll.Starting from the aforementioned prior art, the invention comprises the object of making it possible to improve the known purely hydraulic adjusting devices, the number of adjusting cylinders not being fixed should be, so that the arrangement of only one cylinder per side should remain technically possible.
Die Lösung der gestellten Aufgabe gelingt mit der Erfindung bei Anstellzylindern der im Oberbegriff von Anspruch 1 genannten Bauart dadurch, dass der An- stellzylinder mit einer zweiten Kolbenstange ausgestattet wird in der Weise, dass jeder Anstellzylinder einen Kolben aufweist, der mit zwei Kolbenstangen in entgegen gerichtete Richtungen weisend ausgestattet ist, und der Kolben in jeweils einer Ausnehmung im Zylinderboden bzw. Zylinderdeckel eingesetzt ist, wobei diese koaxial angeordnete Bohrungen zur Durchführung der Kolbenstan- gen besitzen.The object is achieved with the invention for pitch cylinders of the type mentioned in the preamble of claim 1 in that the pitch cylinder is equipped with a second piston rod in such a way that each pitch cylinder has a piston with two piston rods in opposite directions Is equipped with directions, and the piston is inserted in a recess in the cylinder base or cylinder cover, these having coaxially arranged bores for the passage of the piston rods.
Die erfindungsgemäße Ausführung des Anstellzylinders stellt auf eine über den gesamten Zylinderhub gleiche Abstützlänge ab, wobei die Querschnittsfläche der zweiten Kolbenstange den erforderlichen Ölbedarf erheblich reduziert und somit bei gleicher Pumpenleistung eine höhere Verfahrgeschwindigkeit realisiert wird. Damit bleibt die Anwendung der Erfindung auch nicht auf ein Vertikal- Stauchgerüst in Grobblechanlagen beschränkt, sondern lässt sich mit Vorteil auch in anderen Gerüsten anderer Anlagen einsetzen. Ein weitergehender Vorteil dieser Erfindung ermöglicht eine Optimierung von Ölbedarf und Verfahrge- schwindigkeit:The design of the adjusting cylinder according to the invention is based on a support length that is the same over the entire cylinder stroke, the cross-sectional area of the second piston rod considerably reducing the required oil requirement and thus achieving a higher travel speed with the same pump output. Thus, the application of the invention is not limited to a vertical compression frame in heavy plate systems, but can also be used with advantage in other frames of other systems. A further advantage of this invention enables an optimization of oil demand and travel speed:
Die Erfindung wird in Unteransprüchen weiter ausgestaltet.The invention is further developed in subclaims.
Die vorgeschlagene Kapselung der zweiten Kolbenstange wird als zusätzlicher Zylinderölraum gestaltet. Über eine entsprechende Steuerung kann während der walzkraftfreien Verfahrbewegung in Richtung Walzgut ein Kurzschluss zwischen dem sich leerenden und dem zusätzlichen sich füllenden Ölraum des Zylinders hergestellt werden. Dadurch wird die Pumpenmehrleistung reduziert. Während des Walzens kann ein Kurzschluss zwischen beiden Ölräumen auf der zusätzlichen Stangenseite hergestellt werden. Dadurch ist es möglich, mit der kompletten Kolbenfläche die erforderliche Walzkraft aufzubringen. Die Erfindung wird anhand teilweise schematisierter Figuren beschrieben: Es zeigen:The proposed encapsulation of the second piston rod is designed as an additional cylinder oil space. A corresponding control can be used to produce a short circuit between the emptying and the additional filling oil space of the cylinder during the rolling force-free movement in the direction of the rolling stock. This reduces the additional pump output. During rolling, a short circuit can be created between the two oil spaces on the additional rod side. This makes it possible to apply the required rolling force with the complete piston surface. The invention is described with the aid of partially schematic figures:
Figur 1 den schematisierten Anstellzylinder mit Kolben, Kolbenstange, Dichtungen und dergleichen;Figure 1 shows the schematic adjusting cylinder with piston, piston rod, seals and the like;
Figur 2 die schematisierte Steuerung des Anstellzylinders für schnelles Vorfahren, Stauchen und schnelles Zurückfahren;FIG. 2 shows the schematic control of the positioning cylinder for fast forward movement, upsetting and fast return movement;
Figur 3 die Anstellzylinder in Einbausituation bspw. in einem Stauchgerüst;FIG. 3 shows the positioning cylinders in the installation situation, for example in a compression frame;
Figur 4 einen Anstellzylinder mit zwei Druckräumen;Figure 4 shows a positioning cylinder with two pressure chambers;
Figur 5 einen Anstellzylinder mit drei Druckräumen;FIG. 5 an adjusting cylinder with three pressure spaces;
Figur 6 einen Plungerzylinder mit einem Druckraum;Figure 6 shows a plunger cylinder with a pressure chamber;
Figur 7 einen Plungerzylinder mit zwei Druckräumen.Figure 7 shows a plunger cylinder with two pressure chambers.
Gemäß Figur 1 besteht der Anstellzylinder aus dem Kolben (KO) mit der Stange (ST1 ) und der Stange (ST2). Der Kolben ist in den Zylinderdeckel (ZD) und den Zylinderboden (ZB) eingelassen, wobei beide koaxial angeordnete Bohrungen zur Durchführung der Kolbenstangen besitzen. In beiden letztgenannten Boh- rungen befinden sich Aufnahmen für Kolbenführungselemente, die hier als Metallbuchsen (BU1 ), (BU2) ausgeführt sind. Beide Metallbuchsen (BU1 ), (BU2) werden von entsprechenden Deckeln (DE1 ), (DE2) gehalten. Die zum Zylinder gehörigen Dichtungen (DM - DI3) befinden sich im Deckel (DE1 ), im Kolben (KO) und im Zylinderboden (ZB). Zylinderboden (ZB) und Zylinderdeckel (ZD) sind mit den Schrauben (SR2) verschraubt. Der komplette Anstellzylinder ist mit den Schrauben (SR1 ) am Ständer des Walzgerüsts verschraubt. In Verlange- rung der Stange (ST1 ) befindet sich ein Druckstück (DS). Die Stange (ST1 ) ist mit einem Faltenbalg (FB) geschützt. Der Faltenbalg (FB) ist entweder über Gleitscheiben auf der Stange (ST1 ) abgestützt oder wird mittels Schlaufen an hier nicht gezeigten Führungsstangen gehalten.According to Figure 1, the positioning cylinder consists of the piston (KO) with the rod (ST1) and the rod (ST2). The piston is embedded in the cylinder cover (ZD) and the cylinder base (ZB), both of which have coaxially arranged bores for the passage of the piston rods. In the latter two bores there are receptacles for piston guide elements, which are designed here as metal bushings (BU1), (BU2). Both metal bushings (BU1), (BU2) are held by corresponding covers (DE1), (DE2). The seals belonging to the cylinder (DM - DI3) are located in the cover (DE1), in the piston (KO) and in the cylinder base (ZB). The cylinder base (ZB) and cylinder cover (ZD) are screwed together with the screws (SR2). The complete positioning cylinder is screwed to the stand of the roll stand with the screws (SR1). In demand rod (ST1) is a pressure piece (DS). The rod (ST1) is protected with a bellows (FB). The bellows (FB) is either supported on the rod (ST1) by means of sliding disks or is held by means of loops on guide rods (not shown here).
Der Zylinderkolben hat eine Verdrehsicherung, die entweder als hier nicht dargestellte Rahmenverbindung zwischen den Druckstücken (DS) von zwei übereinander angeordneten Anstellzylindern ausgeführt ist oder aus Fortsätzen des Druckstücks (DS) besteht, die in den bereits erwähnten Führungsstangen geführt sind. In Fortsetzung des Zylinderbodens (ZB) befindet sich eine Kapsel (KA), die einerseits die Stange (ST2) schützt und anderseits die Option besitzt als zusätzlicher Ölraum (OL3) verwendet zu werden. In Verlängerung der Kapsel (KA) befindet sich ein Wegmesssystem, hier als Positionsgeber (PG) ausgeführt, das die Stellung des Zylinderkolbens aufnimmt.The cylinder piston has an anti-rotation device, which is either designed as a frame connection (not shown here) between the pressure pieces (DS) of two stacking cylinders arranged one above the other or consists of extensions of the pressure piece (DS) which are guided in the guide rods already mentioned. In continuation of the cylinder base (ZB) there is a capsule (KA), which protects the rod (ST2) on the one hand and on the other hand has the option of being used as an additional oil chamber (OL3). In the extension of the capsule (KA) there is a position measuring system, here designed as a position encoder (PG), which takes up the position of the cylinder piston.
Die Ausführung des Anstellzylinders in Fig. 4 und Fig. 5 ist sinngemäß. In der Ausführung als Plungerzylinder, Fig. 6 und 7, sind Zylinderdeckel und Zylinderboden ein Teil (PB) und der Kolben (KO) besteht nur noch aus den Anstellzylin- derstangen (ST3, ST4).The design of the adjusting cylinder in FIGS. 4 and 5 is analogous. 6 and 7, the cylinder cover and cylinder base are part (PB) and the piston (KO) consists only of the adjusting cylinder rods (ST3, ST4).
Die in Fig. 5 gezeigten Ölräume (OL1 , OL2, OL3) bilden je nach Ausführung die kraftrelevanten Ringflächen A1 und A2 bzw. die Kreisfläche A3.Depending on the design, the oil spaces (OL1, OL2, OL3) shown in FIG. 5 form the force-relevant ring areas A1 and A2 or the circular area A3.
In Figur 2 ist schematisch die Steuerung erläutert für ein schnelles Vor- und Zurückfahren des Anstellzylinders mit geringem Volumenstrom oder Stauchen des Walzgutes mit hoher Kraft. Die einzelnen Betriebsphasen 1 bis 3, d.h. schnelles Vorfahren, Stauchen mit hoher Kraft und schnelles Zurückfahren sind anhand der Figur 2 gut ersichtlich.In Figure 2, the control is schematically explained for a fast forward and backward movement of the positioning cylinder with a low volume flow or compression of the rolling stock with high force. The individual operating phases 1 to 3, i.e. rapid advancement, upsetting with high force and rapid retraction can be seen clearly from FIG. 2.
Phase 1 : schnelles Vorfahren mit reduzierter Kraft: Druck auf Fläche A2; Flächen A1 und A3 sind möglichst drucklos (P2»0; pι*0) optimal: A1«A3; Leitungen 1 und 3 können verbunden sein, Öl fließt dann von Leitung 1 nach Leitung 3 oder sinngemäßer Austausch der Flächen A2 und A3Phase 1: fast approach with reduced force: pressure on surface A2; Areas A1 and A3 are as depressurized as possible (P 2 »0; pι * 0) optimal: A1 «A3; Lines 1 and 3 can be connected, oil then flows from line 1 to line 3 or the corresponding exchange of areas A2 and A3
Phase 2: Stauchen mit hoher Kraft Druck auf Fläche A2 und Fläche A3; Fläche A1 < Flächen A2 + A3Phase 2: upsetting with high force pressure on surface A2 and surface A3; Area A1 <areas A2 + A3
Phase 3: schnelles Zurückfahren Druck auf Fläche A1 ; Flächen A2 und A3 sind drucklos oder mit wenig Druck beaufschlagt.Phase 3: rapid return pressure on area A1; Areas A2 and A3 are depressurized or pressurized.
In Figur 3 ist die Einbausituation von vier verschiedenen Bauformen von An- stellzylindern in einem Stauchgerüst gezeigt. Allen Bauformen ist die Ausführung mit zwei Kolbenstangen gemeinsam. Bei der Verwendung des Anstellzy- linders in einem Stauchgerüst ist dieser entsprechend der Figur 3 viermal verbaut; Je Seite zwei Anstellzylinder, die ober- und unterhalb der Ständermittenebene (9) angeordnet sind. Technisch möglich ist aber auch die Anordnung von nur einem Anstellzylinder je Seite. Die Zylinder sind in entsprechenden Bohrungen des Staucherständers (8) eingebracht und wirken auf die Stauchwalzen (7). In Verbindung mit einer Balanciertraverse (6) wird durch den Balancierzylinder (5) das Spiel aus dem Gesamtsystem herausgedrückt. Der Balancierzylinder (5) kann auch die Funktion eines Rückzugzylinders übernehmen.FIG. 3 shows the installation situation of four different types of positioning cylinders in a compression frame. The design with two piston rods is common to all designs. When the starting cylinder is used in a compression frame, it is installed four times in accordance with FIG. 3; Two adjusting cylinders on each side, which are arranged above and below the center plane (9). Technically, however, it is also possible to arrange only one positioning cylinder on each side. The cylinders are inserted in corresponding bores in the upsetting stand (8) and act on the upsetting rollers (7). In conjunction with a balancing crossbeam (6), the balancing cylinder (5) pushes the play out of the overall system. The balancing cylinder (5) can also act as a retraction cylinder.
In den Figuren 4 bis 7 sind folgende Zylinderausführungsformen gezeigt:The following cylinder embodiments are shown in FIGS. 4 to 7:
Figur 4 zeigt einen Anstellzylinder mit 2 Druckräumen und den Wirkflächen A1 und A2, Figur 5 zeigt einen Anstellzylinder mit 3 Druckräumen und den Wirkflächen A1 , A2 und A3, Figur 6 zeigt einen Plungerzylinder mit 1 Druckraum und der Wirkfläche A2, Figur 7 zeigt einen Plungerzylinder mit 2 Druckräumen und den Wirkflächen A2 und A3.FIG. 4 shows a positioning cylinder with 2 pressure spaces and the effective areas A1 and A2, FIG. 5 shows a positioning cylinder with 3 pressure spaces and the effective areas A1, A2 and A3, FIG. 6 shows a plunger cylinder with 1 pressure space and the effective area A2, Figure 7 shows a plunger cylinder with 2 pressure chambers and the effective areas A2 and A3.
Die Fahrweise der einzelnen Bauweisen kann entsprechend den notwendigen Vorgaben gewählt werden, z. B. gemäßThe driving style of the individual construction methods can be selected according to the necessary specifications, e.g. B. according
Figur 4: Doppelt wirkender Zylinder mit Druckbeaufschlagung der Ringfläche A2 zum schnellen Vorfahren und zum Aufbringen der Walzkraft, Ringfläche A1 ist druckbeaufschlagt zum Zurückfahren des ZylindersFigure 4: Double-acting cylinder with pressurization of the ring surface A2 for rapid advancement and for applying the rolling force, ring surface A1 is pressurized for retracting the cylinder
Figur 5: Doppelt wirkender Zylinder mit Druckbeaufschlagung der Ringfläche A2 und / oder Kreisfläche A3 zum schnellen Vorfahren und Verwendung der Ringfläche A2 und / oder Kreisfläche A3 zum Aufbringen der Walzkraft, Ringfläche A1 ist druckbeaufschlagt zum Zurückfahren des ZylindersFigure 5: Double-acting cylinder with pressurization of the annular surface A2 and / or circular surface A3 for rapid advancement and use of the annular surface A2 and / or circular surface A3 to apply the rolling force, annular surface A1 is pressurized to retract the cylinder
Figur 6 Plungerzylinder mit Druckbeaufschlagung der Ringfläche A2 zum schnellen Vorfahren und zum Aufbringen der Walzkraft, Balancierzylinder (5) wirkt als RückzugzylinderFigure 6 Plunger cylinder with pressurization of the ring surface A2 for rapid advancement and for applying the rolling force, balancing cylinder (5) acts as a retraction cylinder
Figur 7 Plungerzylinder mit Druckbeaufschlagung der Ringfläche A2 und / oder Kreisfläche A3 zum schnellen Vorfahren und Verwendung der Ringfläche A2 und / oder Kreisfläche A3 zum Aufbringen der Walzkraft, Balancierzylinder (5) wirkt als RückzugzylinderFIG. 7 plunger cylinder with pressurization of the annular surface A2 and / or circular surface A3 for rapid advancement and use of the annular surface A2 and / or circular surface A3 for applying the rolling force, balancing cylinder (5) acts as a retracting cylinder
oder einfach wirkender Zylinder mit Druckbeaufschlagung der Ringflä-or single-acting cylinder with pressurization of the ring surface
Figur 5 ehe A2 und / oder Kreisfläche A3 zum schnellen Vorfahren und Verwendung der Ringfläche A2 und / oder Kreisfläche A3 zum Aufbringen der Walzkraft, Ringfläche A1 ist drucklos, Balancierzy- linder (5) wirkt als Rückzugzylinder. oder Einfach wirkender Zylinder mit Druckbeaufschlagung der Ringflä-5 before A2 and / or circular area A3 for rapid advancement and use of the annular area A2 and / or circular area A3 for applying the rolling force, annular area A1 is depressurized, balancing cylinder (5) acts as a retraction cylinder. or single-acting cylinder with pressurization of the ring surface
Figur 4 ehe A2 zum schnellen Vorfahren und zum Aufbringen der Walzkraft, Ringfläche A1 ist drucklos, Balancierzylinder (5) wirkt als Rückzugzylinder.Figure 4 before A2 for rapid advancement and for applying the rolling force, ring surface A1 is depressurized, balancing cylinder (5) acts as a retraction cylinder.
Differentialschaltungen der Druckräume A1 und / oder A2 und / oder A3 z. B. zum Aufbringen der erforderlichen Ölmengen sind ebenso denkbar. Druckbeaufschlagung der einzelnen Druckräume erfolgt über Magnetventile, Servoventi- le, Rückschlagventile, Pumpen, Behälter, Druckbehälter, Speicher etc. entsprechend dem Stand der Technik. Differential circuits of the pressure spaces A1 and / or A2 and / or A3 z. B. to apply the required amounts of oil are also conceivable. The individual pressure chambers are pressurized via solenoid valves, servo valves, non-return valves, pumps, containers, pressure vessels, accumulators etc. in accordance with the state of the art.

Claims

Patentansprüche claims
1. Anstellzylinder für lange schnelle Hubbewegungen in Walzgerüsten, unter anderem, in Vertikal-Stauchgerüsten, umfassend zumindest jeweils einen Kolben, welcher über Lagereinbaustücke zumindest einer Arbeitswalze oder einer zwischengeschalteten Walze beidseitig auf eine Arbeitswalze zum Anstellen einwirkt, dadurch gekennzeichnet, dass jeder Anstellzylinder einen Kolben (KO) aufweist, der mit zwei Kolbenstangen (ST1 , ST2) in entgegen gerichtete Richtungen weisend ausgestattet ist, und dass der Kolben (KO) in jeweils einer Ausnehmung im Zylinderboden (ZB) bzw. Zylinderdeckel (ZD) eingesetzt ist, wobei diese koaxial angeordnete Bohrungen zur Durchführung der Kolbenstangen (ST1 , ST2) besitzen.1. Positioning cylinder for long, fast lifting movements in roll stands, inter alia, in vertical upsetting stands, each comprising at least one piston which acts on both sides of a work roll for positioning via bearing chocks of at least one work roll or an intermediate roll, characterized in that each position cylinder has a piston (KO), which is equipped with two piston rods (ST1, ST2) pointing in opposite directions, and that the piston (KO) is inserted in a recess in the cylinder base (ZB) or cylinder cover (ZD), these being coaxial have arranged holes for the passage of the piston rods (ST1, ST2).
2. Anstellzylinder nach Anspruch 1 , dadurch gekennzeichnet, dass in den vorgenannten Bohrungen Aufnahmen für Kolbenstangenfüh- rungselemente vorgesehen sind, die vorzugsweise als Metallbuchsen (BU1 , BU2), oder als Führungsbänder ausgeführt sind und vorzugsweise von Deckeln (DE1 , DE2) gehalten sind.2. Adjusting cylinder according to claim 1, characterized in that receptacles for piston rod guide elements are provided in the aforementioned bores, which are preferably designed as metal bushings (BU1, BU2), or as guide bands and are preferably held by covers (DE1, DE2).
3. Anstellzylinder nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass zum Zylinder gehörige Dichtungen (DM , DI2, DI3) sich im Deckel (DE1 ) und (DE2) sowie im Kolben (KO) befinden (Figur 1 ) bzw. Führungsbänder mit den Dichtungen in den Deckeln (DE1 ) und (DE2) aufgenommen sind.3. Adjusting cylinder according to one of claims 1 or 2, characterized in that seals belonging to the cylinder (DM, DI2, DI3) are located in the cover (DE1) and (DE2) and in the piston (KO) (FIG. 1) or guide bands with the seals in the covers (DE1) and (DE2).
4. Anstellzylinder nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Zylinderboden (ZB) mit dem Zylinderdeckel (ZD) mittels Schrauben (SR2) verbunden ist.4. adjusting cylinder according to one or more of claims 1 to 3, characterized in that the cylinder base (ZB) is connected to the cylinder cover (ZD) by means of screws (SR2).
5. Anstellzylinder nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der komplette Anstellzylinder mittels Schrauben (SR1 ) mit dem Gerüstständer verbunden ist.5. pitch cylinder according to one or more of claims 1 to 4, characterized in that the complete pitch cylinder by means of screws (SR1) is connected to the scaffold stand.
6. Anstellzylinder nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass sich in Fortsetzung des Zylinderbodens (ZB) eine Kapsel (KA) befindet, die entweder die Kolbenstange (ST2) schützt, oder als zusätzlicher Ölraum (OL3) verwendbar ist.6. adjusting cylinder according to one or more of claims 1 to 5, characterized in that there is a capsule (KA) in continuation of the cylinder base (ZB), which either protects the piston rod (ST2), or can be used as an additional oil chamber (OL3) ,
7. Anstellzylinder nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass in Verlängerung der Kapsel (KA) sich ein als Positionsgeber (PG) ausgeführtes Wegmesssystem oder dergleichen befindet, welches die Stellung des Kolbens (KO) aufnimmt.7. adjusting cylinder according to one or more of claims 1 to 6, characterized in that in the extension of the capsule (KA) is a position encoder (PG) designed as a position measuring system or the like, which receives the position of the piston (KO).
8. Anstellzylinder nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Verlängerung der Kolbenstange (ST1 ) ein Druckstück (DS) zur Einwirkung auf die Walzeneinbaustücke angeordnet ist.8. adjusting cylinder according to one or more of claims 1 to 7, characterized in that the extension of the piston rod (ST1) is arranged a pressure piece (DS) for acting on the roller chocks.
9. Anstellzylinder nach einem oder mehreren der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Kolben (KO) eine Verdrehsicherung aufweist.9. adjusting cylinder according to one or more of claims 1 to 8, characterized in that the piston (KO) has an anti-rotation device.
10. Anstellzylinder nach einem oder mehreren der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die mit dem Druckstück (DS) verbundene Kolbenstange (ST1 ) von einem Faltenbalg umgeben ist.10. adjusting cylinder according to one or more of claims 1 to 9, characterized in that the piston rod (ST1) connected to the pressure piece (DS) is surrounded by a bellows.
11. Verfahren zum Betrieb des Anstellzylinders, umfassend einen in einem zumindest zweiteiligen Gehäuse (G1 , G2) zwischen Druckflächen (A1 , A2, A3) kraftschlüssig bewegbaren, auf ein Einbaustück (ES) eines Walzgerüstes in drei Arbeitsphasen einwirkenden Arbeitskolben (KO) dadurch gekennzeichnet, dass für Phase 1 zum schnellen Vorfahren mit reduzierter Kraft Druck auf Fläche A2 aufgebracht wird, wogegen die Flächen A1 und A3 möglichst drucklos gemacht werden; dass für Phase 2 zum Stauchen mit hoher Kraft Druck auf Flächen A2 und/oder A3 aufgebracht wird; und dass für Phase 3 zum schnellen Zurückfahren Druck auf Fläche A1 bei möglichst drucklosen Flächen A2 und A3 aufgebracht wird (Fig.2 ).11. A method of operating the adjusting cylinder, comprising a non-positively movable in an at least two-part housing (G1, G2) between pressure surfaces (A1, A2, A3), which acts on an installation piece (ES) of a rolling stand in three working phases (KO) that, for phase 1, pressure is applied to area A2 to reduce the force, while areas A1 and A3 are depressurized; that for phase 2, high pressure is applied to surfaces A2 and / or A3; and that for phase 3, pressure is applied to area A1 with areas A2 and A3 as unpressurized as possible (FIG. 2).
12. Verfahren zum Betrieb des Anstellzylinders, umfassend einen in einem zumindest zweiteiligen Gehäuse (G1 , G2) zwischen Druckflächen (A1 , A2, A3) kraftschlüssig bewegbaren, auf ein Einbaustück (ES) eines Walzgerüstes in drei Arbeitsphasen einwirkenden Arbeitskolben (KO) dadurch gekennzeichnet, dass für Phase 1 zum schnellen Vorfahren mit reduzierter Kraft Druck auf Fläche A3 aufgebracht wird, wogegen die Flächen A1 und A2 möglichst drucklos gemacht werden; dass für Phase 2 zum Stauchen mit hoher Kraft Druck auf Flächen A2 und/oder A3 aufgebracht wird; und dass für Phase 3 zum schnellen Zurückfahren Druck auf Fläche A1 bei möglichst drucklosen Flächen A3 und A2 aufgebracht wird (Fig.2 ).12. A method of operating the adjusting cylinder, comprising a non-positively movable in an at least two-part housing (G1, G2) between pressure surfaces (A1, A2, A3), which acts on an installation piece (ES) of a roll stand in three working phases (KO) that, for phase 1, pressure is applied to area A3 to reduce the force, while areas A1 and A2 are depressurized; that for phase 2, high pressure is applied to surfaces A2 and / or A3; and that for phase 3, pressure is applied to area A1 with areas A3 and A2 as unpressurized as possible (FIG. 2).
13. Verfahren zum Betrieb des Anstellzylinders, umfassend einen in einem zumindest zweiteiligen Gehäuse (G1 , G2) zwischen Druckflächen (A1 , A2, A3) kraftschlüssig bewegbaren, auf ein Einbaustück (ES) eines Walzgerüstes in drei Arbeitsphasen einwirkenden Arbeitskolben (KO) dadurch gekennzeichnet, dass für Phase 1 zum schnellen Vorfahren mit reduzierter Kraft Druck auf Fläche A2 bzw. A3 aufgebracht wird, wogegen die Flächen A1 und A3 bzw. A2 möglichst drucklos gemacht werden; dass für Phase 2 zum Stauchen mit hoher Kraft Druck sowohl auf Flächen A2 und/oder A3 als auch Druck auf Fläche A1 aufgebracht wird; und dass für Phase 3 zum schnellen Zurückfahren Druck auf Fläche A1 bei möglichst drucklosen Flächen A2 bzw. A3 und A3 bzw. A2 aufgebracht wird (Fig.2).13. Method for operating the adjusting cylinder, comprising a in an at least two-part housing (G1, G2) between pressure surfaces (A1, A2, A3) non-positively movable working piston (KO) acting on an installation piece (ES) of a roll stand in three working phases, characterized in that for phase 1, pressure is applied to surfaces A2 and A3 for reduced advancement with reduced force, whereas surfaces A1 and A3 or A2 are depressurized if possible; that for phase 2, high pressure compression is applied to both surfaces A2 and / or A3 and pressure to surface A1; and that for phase 3, pressure is applied to area A1 with areas A2 or A3 and A3 or A2 as unpressurized as possible (FIG. 2).
14. Verfahren zum Betrieb des Anstellzylinders, umfassend einen in einem zumindest zweiteiligen Gehäuse (G1 , G2) zwischen Druckflächen (A1 , A2, A3) kraftschlüssig bewegbaren, auf ein Einbaustück (ES) eines Walzge- rüstes in drei Arbeitsphasen einwirkenden Arbeitskolben (KO), nach einem der Ansprüche 11 , 12, oder 13, dadurch gekennzeichnet, dass in Phase 3 zum schnellen Zurückfahren ein separater Rückzugzylinder verwendet wird, bei möglichst drucklosen Flächen A2 und A3, wobei die Größe der Fläche A1 auch Null sein kann (Plungerzylinder). 14. Method for operating the adjusting cylinder, comprising a work piston (KO) which can be moved in a force-fitting manner in an at least two-part housing (G1, G2) between pressure surfaces (A1, A2, A3) and acts on an installation piece (ES) of a roll stand in three work phases. , according to one of claims 11, 12 or 13, characterized in that a separate retraction cylinder is used in phase 3 for rapid retraction, with areas A2 and A3 that are as unpressurized as possible, wherein the size of area A1 can also be zero (plunger cylinder).
EP04790637A 2003-11-19 2004-10-19 Adjusting roll in rolling frames, among others vertical upset forging frames Active EP1687104B1 (en)

Applications Claiming Priority (3)

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DE10354235 2003-11-19
DE102004039494A DE102004039494A1 (en) 2003-11-19 2004-08-14 Adjusting cylinders in rolling stands, among others in vertical upsetting frames
PCT/EP2004/011815 WO2005049242A1 (en) 2003-11-19 2004-10-19 Adjusting roll in rolling frames, among others vertical upset forging frames

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EP1687104A1 true EP1687104A1 (en) 2006-08-09
EP1687104B1 EP1687104B1 (en) 2008-12-17

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EP (1) EP1687104B1 (en)
JP (1) JP4762906B2 (en)
KR (1) KR101121502B1 (en)
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AT (1) ATE417676T1 (en)
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CN102310087B (en) * 2011-08-26 2013-09-11 宁波中超机器有限公司 Vertical roller mill
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DE502004008707D1 (en) 2009-01-29
ES2317062T3 (en) 2009-04-16
CN1882399A (en) 2006-12-20
TWI342805B (en) 2011-06-01
ATE417676T1 (en) 2009-01-15
US20070062240A1 (en) 2007-03-22
CA2542103A1 (en) 2005-06-02
KR20060118445A (en) 2006-11-23
KR101121502B1 (en) 2012-03-15
RU2006121427A (en) 2007-12-27
BRPI0416696A (en) 2007-01-30
CN100478091C (en) 2009-04-15
AU2004291240A1 (en) 2005-06-02
US20090193867A1 (en) 2009-08-06
US7743638B2 (en) 2010-06-29
JP2007533463A (en) 2007-11-22
US7726168B2 (en) 2010-06-01
AU2004291240B2 (en) 2010-02-18
WO2005049242A1 (en) 2005-06-02
EP1687104B1 (en) 2008-12-17
US20090183545A1 (en) 2009-07-23
DE102004039494A1 (en) 2005-06-23
CA2542103C (en) 2011-08-09
JP4762906B2 (en) 2011-08-31
US7631531B2 (en) 2009-12-15
RU2355491C2 (en) 2009-05-20
TW200517197A (en) 2005-06-01

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