EP0791410B1 - Multi-roll rolling stand - Google Patents

Multi-roll rolling stand Download PDF

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Publication number
EP0791410B1
EP0791410B1 EP97102574A EP97102574A EP0791410B1 EP 0791410 B1 EP0791410 B1 EP 0791410B1 EP 97102574 A EP97102574 A EP 97102574A EP 97102574 A EP97102574 A EP 97102574A EP 0791410 B1 EP0791410 B1 EP 0791410B1
Authority
EP
European Patent Office
Prior art keywords
adjustment
roller
rollers
work
chocks
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
Application number
EP97102574A
Other languages
German (de)
French (fr)
Other versions
EP0791410A2 (en
EP0791410A3 (en
Inventor
Axel Dipl.-Ing. Barten
Josef Dipl.-Ing. Tröster
Werner Stahl
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.)
Achenbach Buschhetten GmbH and Co KG
Original Assignee
Achenbach Buschhetten GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE29603117U external-priority patent/DE29603117U1/en
Application filed by Achenbach Buschhetten GmbH and Co KG filed Critical Achenbach Buschhetten GmbH and Co KG
Publication of EP0791410A2 publication Critical patent/EP0791410A2/en
Publication of EP0791410A3 publication Critical patent/EP0791410A3/en
Application granted granted Critical
Publication of EP0791410B1 publication Critical patent/EP0791410B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21B31/08—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
    • B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends
    • 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
    • B21B31/203—Balancing rolls
    • 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
    • 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
    • B21B2031/206—Horizontal offset of work rolls

Definitions

  • the invention relates to multi-roll stands, in particular Sextomold stands, with an upper and a lower one Back-up roll, an upper and a lower work roll and optionally an upper and a lower intermediate roller, a device for balancing the backup rolls, Roll bending devices for the work rolls and the Intermediate rolls, devices for mutual axial Displacement of the work and / or intermediate rolls and with Devices for horizontal parallel displacement of the Work rolls or intermediate rolls (EP 88 443 B2).
  • the invention has for its object that Generic multi-roll stand with regard to one simplified installation and removal of the rollers and a Simplifying the scaffolding construction to improve the leads to a reduction in manufacturing costs.
  • the sex roll stand 1 according to FIGS. 1 to 3 is included an upper and a lower work roll 2, 3 equipped, which are stored in chocks 4, 5, also with a upper and a lower intermediate roller 6, 7, which in Store chocks 8, 9, and with an upper and one lower backup roller 10, 11, whose bearings in an upper and a lower chock 12, 13 are arranged.
  • Each actuating cylinder unit 18 consists of an upper one Actuating cylinder 18a with an upper, on the chock 12th the upper support roller 10 acting adjusting piston 20a and lower actuating cylinder 18b with a lower, on the Chock 13 of the lower support roller 11 acting Adjusting piston 20b for balancing the support roller 10, wherein the actuating piston 20a, 20b is designed as a plunger.
  • the actuating cylinders 18a, 18b and 19a, 19b of the Actuating cylinder units 18, 19 are each coaxial in one common cylinder housing 22 and 23 installed by a bottom 22a or 23a in two cylinder chambers 22b, 22c or 23b, 23c is divided.
  • the adjusting sleeves 24a, 24b, each on the Outside of the stand window 16 located Actuating cylinder units 18 are slidably mounted on the chocks 8.9 of the intermediate rolls 6, 7, and the Adjusting sleeves 25a, 25b, each on the inside of the Stator window 16 located actuator units 19th are slidably mounted, act on the chocks 4, 5 the work rolls 2, 3.
  • Actuating cylinder units 18, 19; 18, 19 are by one Upper frame 30, a middle frame 31 and a lower frame 32 connected with each other.
  • Adjusting sleeves 24a, 24b for the bending of the intermediate rolls 10, 11 are for guiding the chocks 8, 9 of the intermediate rollers 6, 7 formed, and on the actuating cylinder units 19 for the Balancing of the support rollers 10, 11 displaceable Adjusting sleeves 25a, 25b serve to guide the chocks 4, 5 the work rolls 2, 3.
  • Adjusting sleeves 24a, 24b; 25a, 25b generated bending forces are introduced into the cylinder housings 22, 23, and the adjusting sleeves 24a, 24b; 25a, 25b can be in a communicating pressurization, preferably pressurized oil, depending on the roll grinding.
  • the in Figs. 4 to 6 four-high rolling mill 40 shown is with an upper and a lower work roll 2, 3 trained, which are stored in chocks 4, 5, and with an upper and a lower support roller 10, 11, the Bearings in an upper and a lower chock 12, 13 are arranged.
  • Each actuating cylinder unit 18 consists of an upper one Actuating cylinder 18a with an upper, on the chock 12 of the upper support roller 10 acting adjusting piston 20a and one lower actuating cylinder 18b with a lower, on the Installation piece 13 of the lower support roller 11 acting piston 20b for balancing the support roller 10.
  • the actuating cylinders 18a, 18b of the actuating cylinder units 18 are each installed in a common cylinder housing 22, through a bottom 22a in two cylinder chambers 22b, 22c is divided.
  • Actuating cylinder units 18 also belong on the actuating cylinders 18a, 18b of the same hydraulically displaceable, double-acting, a bending of the work rolls 2, 3 effecting adjusting sleeves 24a, 24b, which by means of lugs 26 on the chocks 4, 5 of the Engage work rolls 2, 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Processing Of Solid Wastes (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Description

Die Erfindung betrifft Mehrwalzengerüste, insbesondere Sextowalzgerüste, mit einer oberen und einer unteren Stützwalze, einer oberen und einer unteren Arbeitswalze und gegebenenfalls einer oberen und einer unteren Zwischenwalze, einer Einrichtung zum Ausbalancieren der Stützwalzen, Walzenbiegeeinrichtungen für die Arbeitswalzen und die Zwischenwalzen, Einrichtungen zur gegenseitigen axialen Verschiebung der Arbeits- und/oder Zwischenwalzen sowie mit Einrichtungen für eine horizontale Parallelverschiebung der Arbeitswalzen oder Zwischenwalzen (EP 88 443 B2).The invention relates to multi-roll stands, in particular Sextomold stands, with an upper and a lower one Back-up roll, an upper and a lower work roll and optionally an upper and a lower intermediate roller, a device for balancing the backup rolls, Roll bending devices for the work rolls and the Intermediate rolls, devices for mutual axial Displacement of the work and / or intermediate rolls and with Devices for horizontal parallel displacement of the Work rolls or intermediate rolls (EP 88 443 B2).

Aus der DE 42 03 189 A1 ist ein Quatrowalzgerüst mit Stellzylindern zum Ausbalancieren und Durchbiegen der Arbeitswalzen bekannt, wobei die Stellzylinder in Halteblöcken angeordnet sind, die in die Fenster der Walzenständer eingebaut sind. Diese Walzgerüstkonstruktion ist sehr aufwendig.From DE 42 03 189 A1 is a quatro roll stand with adjusting cylinders for balancing and bending the Work rolls known, the actuating cylinder in Holding blocks are arranged in the windows of the Roller stands are installed. This mill stand construction is very expensive.

Bei einem in der DE 12 89 811 C2 beschriebenen Quartowalzgerüst sind die Stellzylinder zum Ausbalancieren und Durchbiegen der Arbeitswalzen in Schenkeln der Stützwalzeneinbaustücke untergebracht. Diese Konstruktion hat den Nachteil, daß beim Aus- und Einbau eines Walzensatzes sämtliche Hydraulikleitungen der Stellzylinder von den und an die Anschlußleitungen in den Walzenständern gelöst bzw. angeschlossen werden müssen.In one described in DE 12 89 811 C2 Four-high rolling stands are the positioning cylinders for balancing and bending the work rolls in legs of the Backup roll chocks housed. This construction has the disadvantage that when removing and installing a Roll set all hydraulic lines of the actuating cylinder from and to the connection lines in the roll stands must be solved or connected.

Der Erfindung liegt die Aufgabe zugrunde, das gattungsgemäße Mehrwalzengerüst im Hinblick auf einen vereinfachten Einbau und Ausbau der Walzen sowie eine Vereinfachung der Gerüstkonstruktion zu verbessern, die zu einer Senkung der Herstellungskosten führt. The invention has for its object that Generic multi-roll stand with regard to one simplified installation and removal of the rollers and a Simplifying the scaffolding construction to improve the leads to a reduction in manufacturing costs.

Diese Aufgabe wird erfindungsgemäß gelöst durch ein Mehrwalzengerüst mit den Merkmalen des Patentanspruches 1.According to the invention, this object is achieved by a Multi-roll stand with the features of claim 1.

Die Unteransprüche beinhalten zweckmäßige und vorteilhafte Weiterbildungen der Erfindung.The sub-claims contain expedient and advantageous Developments of the invention.

Die Erfindung mit ihren Vorteilen gegenüber dem Stand der Technik ist nachstehend anhand schematischer Zeichnungsfiguren eines Sextowalzgerüstes und eines Quartowalzgerüstes erläutert, die im einzelnen folgendes darstellen:

Fig. 1
einen Vertikalschnitt eines Walzenständers eines Sextowalzgerüstes nach Linie I-I der Figur 2,
Fig. 2
eine Draufsicht einer in das Fenster eines Walzenständers des Walzgerüstes nach Figur 1 integrierten Funktionseinheit,
Fig. 3
einen Schnitt nach Linie III-III der Figur 2.
Fig. 4
einen Vertikalschnitt eines Walzenständers eines Quartowalzgerüstes,
Fig. 5
einen Schnitt nach Linie V-V der Fig. 4 und
Fig. 6
einen Schnitt nach Linie VI-VI der Fig. 5.
The invention with its advantages over the prior art is explained below with the aid of schematic drawing figures of a sexto roll stand and a four roll stand, which in detail represent the following:
Fig. 1
3 shows a vertical section of a roll stand of a sexto roll stand according to line II of FIG. 2,
Fig. 2
2 shows a plan view of a functional unit integrated into the window of a roll stand of the roll stand according to FIG. 1,
Fig. 3
a section along line III-III of Figure 2.
Fig. 4
a vertical section of a roll stand of a four-high rolling mill,
Fig. 5
a section along line VV of Fig. 4 and
Fig. 6
a section along line VI-VI of Fig. 5th

Das Sextowalzgerüst 1 nach den Figuren 1 bis 3 ist mit einer oberen und einer unteren Arbeitswalze 2, 3 ausgerüstet, die in Einbaustücken 4, 5 gelagert sind, ferner mit einer oberen und einer unteren Zwischenwalze 6, 7, die in Einbaustücken 8, 9 lagern, sowie mit einer oberen und einer unteren Stützwalze 10, 11, deren Lager in einem oberen und einem unteren Einbaustück 12, 13 angeordnet sind.The sex roll stand 1 according to FIGS. 1 to 3 is included an upper and a lower work roll 2, 3 equipped, which are stored in chocks 4, 5, also with a upper and a lower intermediate roller 6, 7, which in Store chocks 8, 9, and with an upper and one lower backup roller 10, 11, whose bearings in an upper and a lower chock 12, 13 are arranged.

In die Fenster 16 der beiden Ständer 14, 15 des Sextowalzgerüstes 1 sind zwei Funktionseinheiten mit je vier symmetrisch und parallel zur vertikalen Walzenachsenebene 17-17 angeordneten, hydraulischen Stellzylindereinheiten 18, 18, 19, 19 integriert.In the window 16 of the two stands 14, 15 of the Sextowalzgerüstes 1 are two functional units with four each symmetrical and parallel to the vertical roller axis plane 17-17 arranged hydraulic actuating cylinder units 18, 18, 19, 19 integrated.

Jede Stellzylindereinheit 18 besteht aus einem oberen Stellzylinder 18a mit einem oberen, auf das Einbaustück 12 der oberen Stützwalze 10 wirkenden Stellkolben 20a und einem unteren Stellzylinder 18b mit einem unteren, auf das Einbaustück 13 der unteren Stützwalze 11 wirkenden Stellkolben 20b zum Ausbalancieren der Stützwalze 10, wobei die Stellkolben 20a, 20b als Plungerkolben ausgebildet ist.Each actuating cylinder unit 18 consists of an upper one Actuating cylinder 18a with an upper, on the chock 12th the upper support roller 10 acting adjusting piston 20a and lower actuating cylinder 18b with a lower, on the Chock 13 of the lower support roller 11 acting Adjusting piston 20b for balancing the support roller 10, wherein the actuating piston 20a, 20b is designed as a plunger.

Dementsprechend besteht jede Stellzylindereinheit 19 aus einem oberen Stellzylinder 19a mit einem oberen, auf das Einbaustück 12 der oberen Stützwalze 10 wirkenden Stellkolben 21a und einem unteren Stellzylinder 19b mit einem unteren, auf das Einbaustück 13 der unteren Stützwalze 11 wirkenden Stellkolben 21b, der ebenso wie der Stellkolben 21a als Plungerkolben ausgebildet ist.Accordingly, each actuating cylinder unit 19 from an upper actuating cylinder 19a with an upper, on the Installation piece 12 of the upper support roller 10 acting adjusting piston 21a and a lower actuating cylinder 19b with a lower one the chock 13 of the lower support roller 11 acting Actuating piston 21b, which, like the adjusting piston 21a, acts as Plunger is formed.

Die Stellzylinder 18a, 18b bzw. 19a, 19b der Stellzylindereinheiten 18, 19 sind jeweils koaxial in ein gemeinsames Zylindergehäuse 22 bzw. 23 eingebaut, das durch einen Boden 22a bzw. 23a in zwei Zylinderkammern 22b, 22c bzw. 23b, 23c aufgeteilt ist.The actuating cylinders 18a, 18b and 19a, 19b of the Actuating cylinder units 18, 19 are each coaxial in one common cylinder housing 22 and 23 installed by a bottom 22a or 23a in two cylinder chambers 22b, 22c or 23b, 23c is divided.

Zu den in jedes Fenster 16 der beiden Walzenständer 14, 15 des Sextowalzgerüstes 1 integrierten vier Stellzylindereinheiten 18, 19; 18, 19 gehören ferner auf den Stellzylindern 18a, 18b und 19a, 19b derselben hydraulisch verschiebbare, doppeltwirkende, eine Biegung der Zwischenwalzen 6, 7 und der Arbeitswalzen 2, 3 bewirkende Stellhülsen 24a, 24b und 25a, 25b, die mittels Nasen 26 an den Einbaustücken 8, 9 der Zwischenwalzen 6, 7 sowie den Einbaustücken 4, 5 der Arbeitswalzen 2, 3 angreifen. To the window 16 of the two roller stands 14, 15 of the sexto roll stand 1 integrated four actuating cylinder units 18, 19; 18, 19 also belong on the actuating cylinders 18a, 18b and 19a, 19b of the same hydraulically displaceable, double acting, a bend of the intermediate rolls 6, 7 and Working rolls 2, 3 adjusting sleeves 24a, 24b and 25a, 25b, which by means of lugs 26 on the chocks 8, 9 of Intermediate rollers 6, 7 and the chocks 4, 5 of Attack work rolls 2, 3.

Die Stellhülsen 24a, 24b, die jeweils auf den an der Außenseite der Ständerfenster 16 gelegenen Stellzylindereinheiten 18 verschiebbar gelagert sind, greifen an den Einbaustücken 8,9 der Zwischenwalzen 6, 7 an, und die Stellhülsen 25a, 25b, die jeweils auf den an der Innenseite der Ständerfenster 16 gelegenen Stellzylindereinheiten 19 verschiebbar gelagert sind, wirken auf die Einbaustücke 4, 5 der Arbeitswalzen 2, 3.The adjusting sleeves 24a, 24b, each on the Outside of the stand window 16 located Actuating cylinder units 18 are slidably mounted on the chocks 8.9 of the intermediate rolls 6, 7, and the Adjusting sleeves 25a, 25b, each on the inside of the Stator window 16 located actuator units 19th are slidably mounted, act on the chocks 4, 5 the work rolls 2, 3.

Die auf die Stützwalzeneinbaustücke 12, 13 wirkenden Stellkolben 20a, 20b der an der Außenseite der Ständerfenster 16 angeordneten Stellzylindereinheiten 18 sind auf beiden Seiten der Ständerfenster in Zentrierbohrungen 27 im oberen und unteren Stützwalzeneinbaustück 12, 13 geführt, wobei in die Zentrierbohrungen 27 der Stützwalzeneinbaustücke 12, 13 eingesetzte Druckfedern 28 über Druckscheiben 29 die Stellkolben 20a, 20b beaufschlagen.Those acting on the support roller chocks 12, 13 Adjusting pistons 20a, 20b on the outside of the stand window 16 arranged actuating cylinder units 18 are on both sides the stand window in center holes 27 in the upper and lower Backing roll chock 12, 13 guided, in which Centering bores 27 of the support roller chocks 12, 13 used compression springs 28 via pressure washers 29 Actuate the actuating piston 20a, 20b.

Die vier Stellzylinder 18a, 18b; 19a, 19b der beiden an den beiden Seiten der Ständerfenster 16 angeordneten Stellzylindereinheiten 18, 19; 18, 19 sind durch einen Oberrahmen 30, einen Mittelrahmen 31 und einen Unterrahmen 32 miteinander verbunden.The four actuating cylinders 18a, 18b; 19a, 19b of the two arranged on the two sides of the stand window 16 Actuating cylinder units 18, 19; 18, 19 are by one Upper frame 30, a middle frame 31 and a lower frame 32 connected with each other.

Die auf den Stellzylindereinheiten 18 für die Ausbalancierung der Stützwalzen 10, 11 verschiebbar gelagerten Stellhülsen 24a, 24b für die Biegung der Zwischenwalzen 10, 11 sind zur Führung der Einbaustücke 8, 9 der Zwischenwalzen 6, 7 ausgebildet, und die auf den Stellzylindereinheiten 19 für die Ausbalancierung der Stützwalzen 10, 11 verschiebbaren Stellhülsen 25a, 25b dienen zur Führung der Einbaustücke 4, 5 der Arbeitswalzen 2, 3.The on the actuator units 18 for the Balancing of the support rollers 10, 11 slidably mounted Adjusting sleeves 24a, 24b for the bending of the intermediate rolls 10, 11 are for guiding the chocks 8, 9 of the intermediate rollers 6, 7 formed, and on the actuating cylinder units 19 for the Balancing of the support rollers 10, 11 displaceable Adjusting sleeves 25a, 25b serve to guide the chocks 4, 5 the work rolls 2, 3.

An einer Verlängerung 33 des Mittelrahmens 31 der beiden Stellzylindereinheiten 18, 19; 18, 19 an den beiden Seiten der Ständerfenster 16 ist jeweils ein weiterer, doppeltwirkender hydraulischer Stellzylinder 34 angelenkt. Bei Betätigung der Stellzylinder 34 werden die Stellzylindereinheiten 19 mit den Stellhülsen 25a, 25b für die Arbeitswalzeneinbaustücke 4, 5 um die Drehachsen 35-35, die durch die Stellzylindereinheiten 18 mit den in die Einbaustücke 12, 13 der oberen und unteren Stützwalze 10, 11 eintauchenden Stellkolben 20a, 20b gebildet sind, geschwenkt und dadurch eine parallele Horizontalverstellung h der Arbeitswalzen 2, 3 mit Bezug auf die Stützwalzen 10, 11 in oder gegen die Walzrichtung erreicht.On an extension 33 of the middle frame 31 of the two Actuating cylinder units 18, 19; 18, 19 on both sides of the Stand window 16 is another, double-acting hydraulic actuating cylinder 34 articulated. When pressing the Actuating cylinders 34, the actuating cylinder units 19 with the Adjusting sleeves 25a, 25b for the work roll chocks 4, 5 µm the axes of rotation 35-35, which are controlled by the actuating cylinder units 18 with the chocks 12, 13 of the upper and lower Support roller 10, 11 immersed adjusting piston 20a, 20b formed are pivoted and thereby a parallel Horizontal adjustment h of the work rolls 2, 3 with reference to the support rollers 10, 11 reached in or against the rolling direction.

Durch Beaufschlagen der Stellzylinder 18a und ggf. 18b mit einem Druck, der größer ist als der zur Kompensation der Gewichtskraft der oberen Stützwalze 10 und ggf. der unteren Stützwalze 11 erforderliche Druck, kann eine zur Anstellkraft entgegengesetzte Kraft erzeugt werden mit dem Ziel, kleine Walzkräfte mit höherer Genauigkeit regeln zu können.By acting on the actuating cylinders 18a and possibly 18b with a pressure greater than that to compensate for the Weight force of the upper support roller 10 and possibly the lower backup roller 11 required pressure can be used for Opposing force are generated with the The aim is to regulate small rolling forces with greater accuracy can.

Weder bei positiven noch bei negativen durch die Stellhülsen 24a, 24b; 25a, 25b erzeugten Biegekräften werden vertikale Kräfte in die Zylindergehäuse 22, 23 eingeleitet, und die Stellhülsen 24a, 24b; 25a, 25b können sich bei einer kommunizierenden Beaufschlagung mit einem Druckmittel, vorzugsweise Drucköl, je nach Walzenabschliff frei einstellen.Neither with positive nor with negative through the Adjusting sleeves 24a, 24b; 25a, 25b generated bending forces vertical forces are introduced into the cylinder housings 22, 23, and the adjusting sleeves 24a, 24b; 25a, 25b can be in a communicating pressurization, preferably pressurized oil, depending on the roll grinding.

Nach Abfangen des Gewichtes der oberen Stützwalze 10 und des oberen Stützwalzeneinbaustückes 12 und Entlasten der Zylinderkammern 22b, 22c, 23b, 23c der Stellzylindereinheiten 18, 19 werden die Stellkolben 20a, 20b durch die Druckfedern 28 in die Stellzylinder 18a, 18b gedrückt, so daß die Funktionseinheiten nach Lösen der Druckmittelverbindungen aus den Fenstern 16 der Walzenständer 14, 15 entnommen werden können.After catching the weight of the upper support roller 10 and the upper support roller chock 12 and relieve the Cylinder chambers 22b, 22c, 23b, 23c of the actuating cylinder units 18, 19, the actuating pistons 20a, 20b by the compression springs 28 pressed into the actuating cylinder 18a, 18b, so that the Functional units after loosening the pressure medium connections the windows 16 of the roller stands 14, 15 are removed can.

Durch teilweises Absperren der Druckkammern 36a, 36b; 37a, 37b; 38a, 38b und 39a, 39b der Stellhülsen 24a, 24b; 25a, 25b für die Biegung der Zwischenwalzen 6, 7 und der Arbeitswalzen 2, 3 und der Zylinderkammern 22b, 22c; 23b, 23c der Stellzylinder 18a, 18b; 19a, 19b zur Ausbalancierung der Stützwalzen 10, 11 gekoppelt mit dem gezielten Ansteuern der nicht abgesperrten Druck- bzw. Zylinderkammern wird der Ausbau jeder einzelnen Arbeitswalze 2, 3 und jeder einzelnen Zwischenwalze 6, 7 ermöglicht.By partially shutting off the pressure chambers 36a, 36b; 37a, 37b; 38a, 38b and 39a, 39b of the adjusting sleeves 24a, 24b; 25a, 25b for the bending of the intermediate rolls 6, 7 and Work rolls 2, 3 and the cylinder chambers 22b, 22c; 23b, 23c the actuating cylinder 18a, 18b; 19a, 19b for balancing the Back-up rolls 10, 11 coupled with the targeted activation the unclosed pressure or cylinder chambers becomes the Removal of each individual work roll 2, 3 and each one Intermediate roller 6, 7 allows.

Die vorbeschriebenen Funktionseinheiten sind mit entsprechenden konstruktiven Änderungen auch bei Quartowalzgerüsten einsetzbar, wie dies nachstehend erläutert ist.The functional units described above are included corresponding design changes also Four-high rolling stands can be used, as explained below is.

Das in den Fign. 4 bis 6 dargestellte Quartowalzgerüst 40 ist mit einer oberen und einer unteren Arbeitswalze 2, 3 ausgebildet, die in Einbaustücken 4, 5 gelagert sind, sowie mit einer oberen und einer unteren Stützwalze 10, 11, deren Lager in einem oberen und einem unteren Einbaustück 12, 13 angeordnet sind.The in Figs. 4 to 6 four-high rolling mill 40 shown is with an upper and a lower work roll 2, 3 trained, which are stored in chocks 4, 5, and with an upper and a lower support roller 10, 11, the Bearings in an upper and a lower chock 12, 13 are arranged.

In die Fenster 16 der beiden Ständer 14, 15 des Quartowalzgerüstes 40 sind zwei Funktionseinheiten mit je zwei symmetrisch und parallel zur vertikalen Walzenachsenebene 17-17 angeordneten, hydraulischen Stellzylindereinheiten 18, 18 integriert.In the window 16 of the two stands 14, 15 of the Four-high rolling mill 40 are two functional units with two each symmetrical and parallel to the vertical roller axis plane 17-17 arranged hydraulic actuating cylinder units 18, 18th integrated.

Jede Stellzylindereinheit 18 besteht aus einem oberen Stellzylinder 18a mit einem oberen, auf das Einbaustück 12 der oberen Stützwalze 10 wirkenden Stellkolben 20a und einem unteren Stellzylinder 18b mit einem unteren, auf das Einbaustück 13 der unteren Stützwalze 11 wirkenden Stellkolben 20b zum Ausbalancieren der Stützwalze 10.Each actuating cylinder unit 18 consists of an upper one Actuating cylinder 18a with an upper, on the chock 12 of the upper support roller 10 acting adjusting piston 20a and one lower actuating cylinder 18b with a lower, on the Installation piece 13 of the lower support roller 11 acting piston 20b for balancing the support roller 10.

Die Stellzylinder 18a, 18b der Stellzylindereinheiten 18 sind jeweils in ein gemeinsames Zylindergehäuse 22 eingebaut, das durch einen Boden 22a in zwei Zylinderkammern 22b, 22c aufgeteilt ist. The actuating cylinders 18a, 18b of the actuating cylinder units 18 are each installed in a common cylinder housing 22, through a bottom 22a in two cylinder chambers 22b, 22c is divided.

Zu den in die Fenster 16 der beiden Walzenständer 14, 15 des Quartowalzgerüstes 40 integrierten vier Stellzylindereinheiten 18 gehören ferner auf den Stellzylindern 18a, 18b derselben hydraulisch verschiebbare, doppeltwirkende, eine Biegung der Arbeitswalzen 2, 3 bewirkende Stellhülsen 24a, 24b, die mittels Nasen 26 an den Einbaustücken 4, 5 der Arbeitswalzen 2, 3 eingreifen.To the windows 16 of the two roller stands 14, 15 of the four-high rolling mill 40 integrated four Actuating cylinder units 18 also belong on the actuating cylinders 18a, 18b of the same hydraulically displaceable, double-acting, a bending of the work rolls 2, 3 effecting adjusting sleeves 24a, 24b, which by means of lugs 26 on the chocks 4, 5 of the Engage work rolls 2, 3.

Auf einer Verlängerung 33 des Bodens 22a der Zylindergehäuse 22 der beiden Stellzylindereinheiten 18, 18 jedes Walzenständers 14, 15, die jeweils parallel zur Walzenachsenebene 17-17 des Walzgerüstes 40 aus dem Ständerfenster 16 nach außen gerichtet ist, sind zwei koaxial und parallel zu den Stellzylindereinheiten 18 angeordnete, doppeltwirkende Haltezylinder 41a, 41b mit als Plungerkolben ausgebildeten Riegelkolben 42a, 42b angebracht, die jeweils in eine mit einer entsprechenden Zentrierbohrung 27 versehene, obere und untere Konsole 43a, 43b eintauchen, die an der Außenseite des Ständerfensters 16 an den beiden Walzenständern 14, 15 des Quartowalzgerüstes 40 angebracht sind, wobei in die Zentrierbohrungen 27 in den Konsolen 43a, 43b eingesetzte Druckfedern 28 über Druckscheiben 29 die Riegelkolben 42a, 42b beaufschlagen. An der Verlängerung 33 der Stellzylindereinheiten 18 ist jeweils ein weiterer, doppeltwirkender hydraulischer Stellzylinder 34 angelenkt.On an extension 33 of the bottom 22a Cylinder housing 22 of the two actuating cylinder units 18, 18th each roll stand 14, 15, each parallel to Roll axis plane 17-17 of the roll stand 40 from the Stand window 16 is directed outwards, two are coaxial and arranged parallel to the actuating cylinder units 18, double-acting holding cylinder 41a, 41b with as a plunger trained locking pistons 42a, 42b attached, each into a corresponding center hole 27, immerse upper and lower console 43a, 43b, which on the Outside of the stand window 16 on the two roller stands 14, 15 of the four-high rolling mill 40 are attached, wherein in the center holes 27 inserted in the brackets 43a, 43b Compression springs 28 via pressure washers 29, the locking pistons 42a, Apply 42b. On extension 33 of the Actuating cylinder units 18 are each another double-acting hydraulic actuating cylinder 34 articulated.

Bei Betätigung der Stellzylinder 34 werden die Stellzylindereinheiten 18 mit den Stellkolben 20a, 20b zum Ausbalancieren der Stützwalzen 10, 11 und den Stellhülsen 24a, 24b zum Biegen der Arbeitswalzen 2, 3 um die Drehachsen 44-44, die durch die Haltezylinder 41a, 41b mit den in die Konsolen 43a, 43b an den Walzenständern 14, 15 eintauchenden Riegelkolben 42a, 42b gebildet werden, geschwenkt und dadurch eine parallele Horizontalverstellung h der Arbeitswalzen 2, 3 mit Bezug auf die Stützwalzen 10, 11 in oder gegen die Walzrichtung erreicht (Fign. 5 und 6).When actuating the actuating cylinder 34 Actuating cylinder units 18 with the actuating pistons 20a, 20b for Balancing the support rollers 10, 11 and the adjusting sleeves 24a, 24b for bending the work rolls 2, 3 about the axes of rotation 44-44 by the holding cylinder 41a, 41b with the in the Plunging brackets 43a, 43b on the roller stands 14, 15 Liegelkolben 42a, 42b are formed, pivoted and thereby a parallel horizontal adjustment h of the work rolls 2, 3 with respect to the support rollers 10, 11 in or against the Rolling direction reached (FIGS. 5 and 6).

Claims (11)

  1. Multi-roll rolling stand (1, 40), especially a six-roller stand (1), having an upper and a lower support roller (10, 11), an upper and a lower work roller (2, 3) and if necessary an upper and a lower intermediate roller (6, 7), a device for balancing (20a, 20b, 21a, 21b) the support rollers (10, 11), roller bending devices (24a, 24b, 25a, 25b) for the work rollers (2, 3) and the intermediate rollers (6, 7), devices for mutual axial displacement of the work- and/or intermediate rollers and also having devices (34) for horizontal parallel displacement of the work rollers (2, 3) or intermediate rollers (6, 7), characterised by two functional units which are integrated into the windows (16) of the two roller uprights (14, 15) of the roller stand (1), said functional units having respectively four hydraulic adjustment cylinder units (18, 18, 19, 19), which are disposed symmetrically and parallel to the roller axial plane (17-17), each adjustment cylinder unit (18, 19) comprising an upper adjustment cylinder (18a, 19a) with an upper adjustment piston (20a, 21a), which acts upon the chock (12) of the upper support roller (10), and a lower adjustment cylinder (18b, 19b) with a lower adjustment piston (20b, 21b), which acts upon the chock (13) of the lower support roller (11), in order to balance the support roller (10), and the two adjustment cylinders (18a, 18b; 19a, 19b) of each adjustment cylinder unit (18, 19) being installed co-axially in a common cylinder housing (22, 23), which is divided into two cylinder chambers (21b, 21c; 23b, 23c) by a base (22a, 23a) and, on the adjustment cylinders (18a, 18b; 19a, 19b) of the adjustment cylinder units (18,19), hydraulically displaceable double-action, adjustment sleeves (24a, 24b; 25a, 25b) which effect a bending of the intermediate rollers (6, 7) and the work rollers (2, 3) and which engage by means of projections (26) or the like on the chocks (8, 9; 4, 5) of the intermediate rollers (6, 7) and of the work rollers (2, 3).
  2. Roller stand according to claim 1, characterised in that the adjustment sleeves (24a, 24b), which are displaceable on the adjustment cylinder units (18) of the two adjustment cylinder units (18, 18; 19, 19) which are disposed symmetrically to the roller axis (17-17), engage on the chocks (8, 9) of the intermediate rollers (6, 7) and the adjustment sleeves (25a, 25b), which are displaceable on the adjustment cylinder units (19), engage on the chocks (4, 5) of the work rollers (2, 3).
  3. Roller stand according to claim 1 and 2, characterised in that the adjustment pistons (20a, 20b), which act upon the support roller chocks (12, 13), of the adjustment cylinder units (18), which are disposed on the external side of the upright windows (16), are guided on both sides of the upright windows (16) in centring borings (27) in the upper and lower support roller chock (12, 13).
  4. Roller stand according to claim 3, characterised in that the adjustment pistons (20a, 20b) of the outer adjustment cylinder units (18), which adjustment pistons are inserted into the support roller chocks (12, 13) effect a return movement of the adjustment pistons (20a, 20b) via the pressure discs (29) due to compression springs (28) inserted into the support roller chocks (12, 13).
  5. Roller stand according to one of the claims 1 to 4, characterised by a configuration of the adjustment pistons (20a, 20b; 21a, 21b) of the adjustment cylinders 18a, 18b; 19a, 19b) as plunger pistons.
  6. Roller stand according to one of the claims 1 to 5, characterised in that the four adjustment cylinders (18a, 18b; 19a, 19b) respectively of the two adjustment cylinder units (18, 19; 18, 19), which are disposed on both sides of the upright windows (16), are connected to each other by frames (30, 31, 32).
  7. Roller stand according to one of the claims 1 to 6, characterised in that the adjustment sleeves (24a, 24b), which are mounted displaceably on the pairs of adjustment cylinders (18) for balancing the support rollers (10, 11), are configured for bending the intermediate rollers (10, 11) in order to guide the chocks (8, 9) of the intermediate rollers (6, 7).
  8. Roller stand according to one of the claims 1 to 7, characterised in that the adjustment sleeves (25a, 25b), which are mounted displaceably on the adjustment cylinder units (19) for balancing the support rollers (10, 11) are configured for bending the work rollers (2, 3) in order to guide the chocks (4, 5) of the work rollers (2, 3).
  9. Roller stand according to one of the claims 1 to 8, characterised by adjustment devices (34), which engage on an extension (33) of the central frame (31) of the two adjustment cylinder units (18, 19; 18, 19) on the two upright window sides, for parallel horizontal displacement (h) of the work rollers (2, 3) with respect to the support rollers (10, 11) in or counter to the roller direction by pivoting of the adjustment cylinder units (19) with the adjustment sleeves (25a, 25b) for the work roller chocks (4, 5) about the axis of rotation (35-35), and which are formed by the adjustment cylinder units (18) with the adjustment pistons (20a, 20b), which are inserted into the chocks (12, 13) of the upper and lower support roller (10, 11).
  10. Four-roller stand (40), having an upper and a lower work roller (2, 3) and an upper and a lower support roller (10,11), having a device (20a, 20b) for balancing the support rollers (10, 11), bending devices (24a, 24b) for the work rollers (2, 3) and having devices (34) for a horizontal parallel displacement of the work rollers (2, 3), characterised by two functional units which are integrated into the windows (16) of the two roller uprights (14, 15) of the roller stand (40) and have respectively two adjustment cylinder units (18, 18), each adjustment cylinder unit (18) comprising an upper adjustment cylinder (18a) with an upper adjustment piston (20a), which acts upon the chock (12) of the upper support roller (10), and a lower adjustment cylinder (18b) with a lower adjustment piston (20b), which acts upon the chock (13) of the lower support roller (11) in order to balance the support roller (10), and the two adjustment cylinders (18a, 18b) of each adjustment cylinder unit being installed co-axially in a common cylinder housing (22) which is divided into two cylinder chambers (22b, 22c) by a base (22a) and also, on the adjustment cylinders (18a, 18b) of the cylinder units (18), hydraulically displaceable, double-action adjustment sleeves (24a, 24b), which effect a bending of the work rollers (2, 3) and engage on the chocks (4, 5) of the work rollers (2, 3) by means of projections (26) or the like.
  11. Four-roller stand according to claim 10, characterised by an extension (33) of the base (22a) of the cylinder housings (22) of the two adjustment cylinder units (18, 18) of each roller upright (14, 15), which extension is directed outwardly respectively parallel to the roller axial plane (17-17) of the roller stand (40) from the upright window (16), by two double-action retaining cylinders (41a, 41b), which are disposed on the extension (33) of the cylinder housings (22) co-axially and parallel to the adjustment cylinder units (18) and have locking pistons (42a, 42b) configured as plunger pistons, and by adjustment devices (34), which engage on the extension (33) of the adjustment cylinder units (18) for parallel horizontal displacement (h) of the work rollers (2, 3) with respect to the support rollers (10, 11) in or counter to the roller direction by pivoting the adjustment cylinder units (18) for the work- and the support roller chocks (4, 5; 12, 13) about the axes of rotation (44-44), which are formed by the retaining cylinders (41a, 41b), the locking pistons of which (42a, 42b) are inserted respectively into an upper and lower console (43a, 43b) which is provided with a corresponding centring boring (27) and the associated springs (28) and pressure discs (29), which consoles are fitted on the outside of the upright window (16) on the two roller uprights (14, 15) of a roller stand (40).
EP97102574A 1996-02-23 1997-02-18 Multi-roll rolling stand Expired - Lifetime EP0791410B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE29603117U DE29603117U1 (en) 1996-02-23 1996-02-23 Multi-roll stand
DE29603117U 1996-02-23
DE19620704 1996-05-23
DE19620704A DE19620704C1 (en) 1996-02-23 1996-05-23 Sexto and quarto roll stands

Publications (3)

Publication Number Publication Date
EP0791410A2 EP0791410A2 (en) 1997-08-27
EP0791410A3 EP0791410A3 (en) 1998-10-28
EP0791410B1 true EP0791410B1 (en) 2001-12-19

Family

ID=26025944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97102574A Expired - Lifetime EP0791410B1 (en) 1996-02-23 1997-02-18 Multi-roll rolling stand

Country Status (4)

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US (1) US5842368A (en)
EP (1) EP0791410B1 (en)
JP (1) JP3950193B2 (en)
ES (1) ES2167629T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006032813A1 (en) 2006-07-14 2008-01-24 Sms Demag Ag Device for rotational locking of the back-up roll balancing of rolling stands
CN101185942B (en) * 2007-12-25 2010-06-02 二重集团（德阳）重型装备股份有限公司 Roller mill roll bending and shifting device
DE102019202691A1 (en) 2019-02-28 2020-09-03 Sms Group Gmbh Roll stand for rolling metallic goods
DE102020214383A1 (en) * 2020-11-17 2022-05-19 Sms Group Gmbh Rolling device for rolling metal strips, roll arrangement for use in such a rolling device and method for converting a rolling device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE503710A (en) * 1950-06-13
DE1289811B (en) * 1963-07-29 1969-02-27 Achenbach Soehne Gmbh Device for balancing and bending the work rolls of a four-high framework
US3943742A (en) * 1973-08-24 1976-03-16 Hitachi, Ltd. Rolling mill
DE2516850C3 (en) * 1975-04-17 1983-05-05 Achenbach Buschhütten GmbH, 5910 Kreuztal Measuring device for determining the distance between the chocks of a roll stand as a control variable for the roll gap control
BR8300010A (en) * 1982-01-06 1983-08-30 Hitachi Ltd LAMINATOR
JPS58157509A (en) * 1982-03-10 1983-09-19 Hitachi Ltd Rolling mill
JPS6015003A (en) * 1983-07-08 1985-01-25 Mitsubishi Heavy Ind Ltd Rolling mill
DE3437601A1 (en) * 1984-10-13 1986-04-17 SMS Schloemann-Siemag AG, 4000 Düsseldorf SIX ROLLING MILL
DE3728795A1 (en) * 1987-08-26 1989-03-09 Mannesmann Ag Rolling stand with work rolls
DE4203189A1 (en) * 1992-02-05 1993-08-12 Achenbach Buschhuetten Gmbh DEVICE FOR BALANCING AND BOWING THE WORK ROLLS OF A ROLLING STAND

Also Published As

Publication number Publication date
JPH1015602A (en) 1998-01-20
US5842368A (en) 1998-12-01
EP0791410A2 (en) 1997-08-27
JP3950193B2 (en) 2007-07-25
EP0791410A3 (en) 1998-10-28
ES2167629T3 (en) 2002-05-16

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