EP2995390B1 - Walzgerüst vom typ monoblock - Google Patents

Walzgerüst vom typ monoblock Download PDF

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Publication number
EP2995390B1
EP2995390B1 EP15179774.3A EP15179774A EP2995390B1 EP 2995390 B1 EP2995390 B1 EP 2995390B1 EP 15179774 A EP15179774 A EP 15179774A EP 2995390 B1 EP2995390 B1 EP 2995390B1
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EP
European Patent Office
Prior art keywords
rolls
displacement means
rows
stand according
vertical
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.)
Active
Application number
EP15179774.3A
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English (en)
French (fr)
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EP2995390A1 (de
Inventor
Francis Charre
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.)
Primetals Technologies Austria GmbH
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Primetals Technologies Austria GmbH
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Publication date
Application filed by Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Priority to EP15179774.3A priority Critical patent/EP2995390B1/de
Publication of EP2995390A1 publication Critical patent/EP2995390A1/de
Application granted granted Critical
Publication of EP2995390B1 publication Critical patent/EP2995390B1/de
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Classifications

    • 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
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/147—Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working rolls
    • 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
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/30—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by wedges or their equivalent
    • 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

Definitions

  • the present invention relates to a multi-cylinder rolling mill of monoblock type, or monoblock type reconstituted by fixed assembly or preloaded or movable assembly of upper and lower half-cages according to the preamble of claim 1, see for example US4656855A .
  • rolling mill stands comprising two upper and lower half-stands thus forming two distinct parts coupled by means of a guide intended to bring the two half-stands vertically towards their so-called “tight" rolling position.
  • the present invention consists in increasing on a cage such as cylinders the range and combinations of usable cylinder diameters installed in a "monoblock" cage, monobloc reconstituted by fixed or prestressed assembly or by movable assembly, as well as increasing possible opening of cage between work rolls.
  • An object of the present invention is to allow to be able to move at least one of the rows of support rollers of a rolling mill in monoblock form or monobloc reconstituted by fixed assembly or preloaded or movable assembly while providing a displacement stroke sufficiently high between a tight position and an open cage position.
  • the invention thus proposes a solution from a multi-roll mill stand comprising in a vertical direction an upper frame portion and a lower frame portion integral in one-piece form, each of the frame parts respectively comprising a set of rolls.
  • upper and lower, said upper and lower rolls being composed of rows of support rollers for creating pressure effects on intermediate rolls, themselves creating pressure effects on a pair of work rolls for rolling two faces of a metal product scrolling horizontally when, internally to the frames, the upper and lower roller assemblies are brought to the tight rolling position by first displacement means respectively rectilinear component mainly vertical or even inclined relative to the vertical.
  • the rolling mill cage according to the invention is characterized in that at least one of the rows of support rollers (such as the rows A, D, E, H of the figure 1 ) is coupled to a second displacement means generating a main displacement component of the next row at least one horizontal axis towards the working rolls, said second moving means being activated as soon as the set of lower or upper rolls to which belongs said row of support rollers is brought vertically to the tight rolling position.
  • said first moving means vertical or inclined
  • this first moving means additionally induces a movement of cylinders produced by the second moving means. (horizontal).
  • the second moving means is thus slaved to the first moving means.
  • a set of subclaims also has advantages of the invention related to preferred embodiments of the cage.
  • Figure 3 presents a first embodiment of a multi-roll mill stand comprising in a vertical direction an upper frame portion (B1) and a lower frame portion (B2) integral in one-piece form, each of the frame parts respectively comprising a set of upper and lower rolls, said upper and lower rolls being composed of rows of support rollers (A, B, C, D, E, F, G, H) intended to create pressure effects on intermediate rolls, themselves creating pressure effects on a pair of work rolls for rolling two sides of a horizontally moving metal product (TS) (materialized by both horizontal arrows of the figure 3 ) when, internally to the frames, the upper and lower roller assemblies are brought to the tight rolling position by first displacement means respectively with a predominantly vertical rectilinear component (corners P1, jacks P1 'for a downward movement of the assembly upper cylinders P2 corners for an upward movement of the set of lower cylinders) or rectilinear component inclined relative to the vertical.
  • first displacement means respectively with a predominantly vertical rectilinear component (corners P1,
  • the cage according to the invention provides that at least one of the rows of support rollers (A, D, E, H) is coupled to a second displacement means (F1, EIM1, F2, EIM2) generating a main component of moving the row of rollers along at least one horizontal axis in the direction of the working rolls in addition to the first moving means (vertical / inclined), said second moving means being activated as soon as the set of lower or upper rolls to which belongs said row of support rollers is brought vertically to the tight rolling position.
  • a second displacement means F1, EIM1, F2, EIM2
  • the second moving means can also ensure a complementary (horizontal) displacement of at least one of the rows of support rollers (A, D , H, E) along a vertical axis.
  • At least one of the rows of support rollers (and ideally two or four rows for a maximum increase of travel distances, here the upper rows A, D and lower E, H horizontally the furthest) is thus or respectively coupled to an intermediate holding member (EIM1, EIM2) providing a positioning of said row of rollers mainly in the vertical (or inclined) and horizontal components.
  • the intermediate holding elements have a shape of "L" support points under a roller row section so that one side of the vertical leg of the "L” is inclined to the vertical.
  • the said intermediate holding element thus comprising an external face inclined relative to the vertical and arranged (movable / sliding) vis-à-vis an inner face (F1, F2) d one of the frames (B1, B2).
  • the intermediate holding element ascends or descends and sliding and combined horizontal / vertical movement releases or tightens the cylinders between them independently of the action of the other so-called first means of displacement (vertical or inclined) of rolls of the cage such as P1 and / or P1 '.
  • the inner face of the frame is parallel to the inclined outer face of the intermediate holding element (EIM1, EIM2), so that by simply activating the first displacement means (vertical such as P1 and / or P2) on the intermediate holding element, the latter also undergoes a thrust or withdrawal in a horizontal displacement by contact / sliding between pairs of external / internal faces of said holding element intermediate and the frame in contact.
  • first displacement means vertical such as P1 and / or P2
  • Figure 4 presents a second embodiment of the rolling mill cage which mainly comprises the same characteristics as those of the cage according to the figure 3 .
  • the cage according to the figure 3 comprises at least a third horizontal displacement means (P2 ') which is interposed between the outer face of the intermediate holding element (EIM1, EIM2) and the inner face (F1, F2) of the frame (B1, B2).
  • This third means makes it possible to increase the range of possible strokes of the cylinders, but is also intended to provide a pre-adjustment of the disposition of the bearing surfaces of the vertical leg of the "L" of the intermediate holding element (EIM1, EIM2 ), very advantageously to create a deformation of the bulge of the generator at least one of the rows of support rollers (E, H) for making deformation corrections applied to said work rolls and to the frame parts (B1, B2).
  • Such third means is arranged to move at least one of the lower rows of support rollers (E, H), ideally to act on the intermediate elements (such as EIM2) of the lower frame B2.
  • At least one other means such as the third means could also be arranged to move at least one of the upper rows of support rollers (A, D).
  • the figure 4 does not represent this last option, because the upper rows of support rollers (A, D) are already moved according to the principle of the figure 3 .
  • the third moving means (P2 ') simply consists of at least one unit actuated by a jack, cam or other actuator.
  • a jack, cam or other actuator In figure 4 it is a vertical cylinder which exerts a thrust on the unit (conical wedge P2 ') in order to cause a horizontal displacement of the intermediate holding element (EIM2) and thus of the row of associated support rollers (E ).
  • such third displacement means (P2 ') is installed at least one or ideally two or four rows of support rollers farthest horizontally working rolls (E, H) or (A, D ) or (E, H, A, D. It thus allows from the top and the bottom of the frame a simple control of the second means of horizontal displacement of the rows of support rollers.
  • said third displacement means (P2 ') can advantageously move each of the rollers of a row of support rollers in a predetermined position to correct all or part of (deformed) profile deflections of the work rolls and / or or cage frame parts (B1, B2) subjected to the rolling forces.
  • means for returning and balancing the rows of support rollers are coupled to the holding elements (EIM1, EIM2) in order to effectively move the work rolls from their clamping position, again with the aim of guaranteeing a spacing maximum between said cylinders in the loose position.
  • EIM1, EIM2 holding elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Rolling Contact Bearings (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Attitude Control For Articles On Conveyors (AREA)

Claims (9)

  1. Vielwalzen-Walzgerüst, welches entlang einer vertikalen Richtung einen oberen Ständerteil (B1) und einen unteren Ständerteil (B2) umfasst, die in Form eines Monoblock-Gerüsts fest miteinander verbunden sind, wobei jeder der Ständerteile einen Satz von oberen bzw. unteren Walzen umfasst, wobei diese oberen und unteren Walzen aus Reihen von Stützrollen (A, B, C, D; E, F, G, H) bestehen, die dazu bestimmt sind, Druckwirkungen auf Zwischenwalzen zu erzeugen, die ihrerseits Druckwirkungen auf ein Paar Arbeitswalzen erzeugen, die dazu bestimmt sind, zwei Seiten eines horizontal durchlaufenden metallischen Produkts zu walzen, wenn innerhalb der Ständer die Sätze von oberen und unteren Walzen durch erste Verstellmittel jeweils mit einer im Wesentlichen vertikalen P1, P1'; P2) oder sogar bezüglich der Vertikalen geneigten geradlinigen Komponente in eine geschlossene Walzposition gebracht werden, wobei wenigstens eine der Reihen von Stützrollen (A, D, E, H) mit einem zweiten Verstellmittel gekoppelt ist, das eine Hauptkomponente der Verstellung der Reihe entlang wenigstens einer horizontalen Achse in Richtung der Arbeitswalzen erzeugt, dadurch gekennzeichnet, dass das zweite Verstellmittel den ersten Verstellmitteln nachgeführt wird, indem es aktiviert wird, nachdem der Satz von unteren oder oberen Walzen, zu dem die Reihe von Stützrollen gehört, vertikal in die geschlossene Walzposition gebracht worden ist.
  2. Walzgerüst nach Anspruch 1, wobei das zweite Verstellmittel eine komplementäre Verstellung wenigstens einer der Reihen von Stützrollen (A, D, H, E) entlang einer vertikalen Achse sicherstellt.
  3. Walzgerüst nach Anspruch 1 oder 2, wobei die Reihe von Stützrollen (A, D, E, H) mit einem Zwischenhalteelement (EIM1, EIM2) gekoppelt ist, das eine Positionierung der Reihe von Rollen sicherstellt, wobei das Zwischenhalteelement eine Außenseite umfasst, die bezüglich der Vertikalen geneigt ist und gegenüber einer Innenseite (F1, F2) eines der Ständer (B1, B2) angeordnet ist.
  4. Walzgerüst nach Anspruch 3, wobei die Innenseite des Ständers parallel zu der geneigten Außenseite des Zwischenhalteelements (EIM1, EIM2) ist.
  5. Walzgerüst nach Anspruch 3, wobei wenigstens ein drittes Verstellmittel zur horizontalen Verstellung (P2') zwischen der Außenseite des Zwischenhalteelements (EIM1, EIM2) und der Innenseite (F1, F2) des Ständers (B1, B2) angeordnet ist.
  6. Walzgerüst nach Anspruch 5, wobei das dritte Verstellmittel (P2') aus wenigstens einer Einheit besteht, die von einem Zylinder, einem Nocken oder einem anderen Aktuator betätigt wird.
  7. Walzgerüst nach Anspruch 5, wobei das dritte Verstellmittel (P2') wenigstens an den Reihen von Stützrollen (E, H) oder (A, D) oder (E, H, A, D) installiert ist, die horizontal am weitesten von den Arbeitswalzen entfernt sind.
  8. Walzgerüst nach einem der Ansprüche 5 bis 7, wobei das dritte Verstellmittel (P2') jede der Rollen einer Reihe von Stützrollen gemäß einer vorbestimmten Position verstellt, die es ermöglicht, alle oder einen Teil der Abweichungen (Verformungen) des Profils der Arbeitszylinder und/oder der Ständerteile (B1, B2) von Walzgerüsten, auf welche die Walzbeanspruchungen einwirken, zu korrigieren.
  9. Walzgerüst nach Anspruch 3, wobei Mittel zur Rückholung und zum Ausgleich der Reihen von Stützrollen mit den Zwischenhalteelementen (EIM1, EIM2) gekoppelt sind.
EP15179774.3A 2014-09-10 2015-08-05 Walzgerüst vom typ monoblock Active EP2995390B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15179774.3A EP2995390B1 (de) 2014-09-10 2015-08-05 Walzgerüst vom typ monoblock

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14290269.1A EP2995389A1 (de) 2014-09-10 2014-09-10 Walzgerüst vom Typ Monoblock
EP15179774.3A EP2995390B1 (de) 2014-09-10 2015-08-05 Walzgerüst vom typ monoblock

Publications (2)

Publication Number Publication Date
EP2995390A1 EP2995390A1 (de) 2016-03-16
EP2995390B1 true EP2995390B1 (de) 2017-10-18

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Application Number Title Priority Date Filing Date
EP14290269.1A Withdrawn EP2995389A1 (de) 2014-09-10 2014-09-10 Walzgerüst vom Typ Monoblock
EP15179774.3A Active EP2995390B1 (de) 2014-09-10 2015-08-05 Walzgerüst vom typ monoblock

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP14290269.1A Withdrawn EP2995389A1 (de) 2014-09-10 2014-09-10 Walzgerüst vom Typ Monoblock

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EP (2) EP2995389A1 (de)
CN (1) CN105396875B (de)
ES (1) ES2656202T3 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108655183B (zh) * 2017-03-30 2020-10-27 宝山钢铁股份有限公司 一种判断十八辊轧机工作辊状态的方法及基于此的应用
CN113546965B (zh) * 2021-08-13 2024-08-30 宝鸡市荣豪钛业有限公司 一种轧机辊系的背衬辊结构

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN150121B (de) * 1978-02-23 1982-07-24 Sendzimir Inc T
JPS6199509A (ja) * 1984-10-22 1986-05-17 Kobe Steel Ltd 多段圧延機のクラウン制御方法
DE4131571C2 (de) * 1991-09-23 1994-11-10 Sundwiger Eisen Maschinen Walzenstützvorrichtung zur Korrektur des Walzenspaltes in einem Vielwalzen-Walzgerüst für Bänder
CN100579681C (zh) * 2008-01-25 2010-01-13 中冶陕压重工设备有限公司 用于十二辊可控辊形轧机的辊形调整机构
US9003854B2 (en) 2011-06-16 2015-04-14 I2S, Llc Split housing cluster mill designed for temper and cold rolling
CN103341493B (zh) * 2013-07-11 2016-01-20 陶洪瑞 十八辊轧机工作辊侧支撑的油缸斜铁调整装置

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

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Publication number Publication date
ES2656202T3 (es) 2018-02-26
CN105396875B (zh) 2019-07-16
EP2995390A1 (de) 2016-03-16
CN105396875A (zh) 2016-03-16
EP2995389A1 (de) 2016-03-16

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