EP0256408A2 - Dispositif pour plier et balancer des cylindres de travail décalables axialement d'une cage quarto - Google Patents

Dispositif pour plier et balancer des cylindres de travail décalables axialement d'une cage quarto Download PDF

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Publication number
EP0256408A2
EP0256408A2 EP87111182A EP87111182A EP0256408A2 EP 0256408 A2 EP0256408 A2 EP 0256408A2 EP 87111182 A EP87111182 A EP 87111182A EP 87111182 A EP87111182 A EP 87111182A EP 0256408 A2 EP0256408 A2 EP 0256408A2
Authority
EP
European Patent Office
Prior art keywords
bending
guide
lifting housing
work roll
guide block
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.)
Withdrawn
Application number
EP87111182A
Other languages
German (de)
English (en)
Other versions
EP0256408A3 (fr
Inventor
Heinrich Bohnenkamp
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 Schloemann Siemag AG
Schloemann Siemag 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 Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0256408A2 publication Critical patent/EP0256408A2/fr
Publication of EP0256408A3 publication Critical patent/EP0256408A3/fr
Withdrawn legal-status Critical Current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
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/18—Adjusting or positioning rolls by moving rolls axially
    • 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
    • B21B2269/00—Roll bending or shifting
    • B21B2269/12—Axial shifting the rolls
    • B21B2269/14—Work 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
    • B21B31/203—Balancing rolls

Definitions

  • the invention relates to a bending and balancing device for axially displaceable work rolls of a four-high rolling mill, wherein a fixed guide block is fastened on both sides in the window of each roll stand in the height range of the work roll chocks and the force of bending cylinders is transmitted to the work roll chocks guided in the axial direction and vertically displaceable
  • Bending devices of this type are e.g. already known from DE-OS 33 31 055, EP-A1 26 903 and EP-A2 67 040.
  • the bending devices between the stator-side blocks and the chocks of the work rolls are arranged so that they are axially displaced together with the work roll chocks in order to ensure a constant force on the chocks in any possible axial position of the work rolls.
  • the object of the invention is to provide a robust, reliable bending and balancing device of the type described at the outset, with the bending and shifting forces being transmitted to the chocks of the working roll independently of the momentary working roll position, the surface pressures and friction between guide surfaces remaining within the permissible range, moreover In addition, a vertical relative movement between the axial displacement device and the work roll chocks should be avoided.
  • the work roll chocks are supported on both sides with a sliding surface arranged in the middle height range on a guide shoulder of a lower or upper lifting housing guided vertically on the guide block, each lifting housing also being assigned guide surfaces in the height range of the other lifting housing, the bending cylinders are effectively arranged between the lower and the upper lifting housing and optionally an axial displacement device for the work roll chocks is laterally attached to a lifting housing.
  • the vertical guide and the piston rod guides are covered by the lifting housings and thus protected from sinter and dust.
  • the axial displacement devices follow the vertical movements of the work roll chocks, so that tilting moments are also avoided here. From the advantages mentioned, the device according to the invention is particularly suitable for hot plate rolling mills.
  • one of the lift housings is provided with a projection toward the guide block, which protrudes into the guide region of the other lift housing mounted on the same guide block and is guided at its upper and lower ends in a U-shaped recess in the guide block. This increases the distance between opposing guide surfaces and reduces friction.
  • a guide pin is fastened to one of the lifting housings and is guided in a guide of the other lifting housing mounted on the same guide block.
  • a particularly advantageous flow of force between the lifting housings and the work roll chocks is achieved in that the guide shoulders run in the horizontal axis plane of the associated work roll chock.
  • an upper work roll 2 and a lower work roll 3 are mounted in their chocks 4, 5 in the window of a roll stand 1.
  • Each work roll 2, 3 is assigned a support roll 6 or 7, the chocks 8, 9 of which are mounted directly between vertical guide surfaces 10, 11 of the stand window.
  • the chocks 4, 5 of the work rolls 2, 3 are guided between guide blocks 12, 13 fastened in the stator window.
  • the guide blocks 12, 13 are in the form of a roller for vertical guidance of a lower lifting housing 14 and an upper lifting housing 15 a U profiled with angled legs 16.
  • the lifting housings 14, 15 grip around the angled legs 16 like claws.
  • Each lower lifting housing 14 is provided with a rectangular projection 17 which is extended into the area of the upper lifting housing 15 and is guided at both ends by means of sliding surfaces 18a in the U-shaped recess 18 of the guide blocks 12, 13.
  • the entire height of the guide block 12 is used to guide the lower lifting housing 14 and the surface pressures and friction occurring between the sliding surfaces 18a are limited to an acceptable level.
  • the guide of the upper lifting housing 15 shown in FIG. 2 also serves the purpose of reducing friction by means of a guide pin 20 arranged on its underside in a guide bushing 21 in the lower lifting housing 14, as a result of which the guide distance to the upper guide surfaces 19 on the legs 16 of the guide block 12 is increased becomes.
  • each upper lifting housing 15 there are two bending cylinders 22, the piston rods 23 of which are anchored to the lower lifting housing 14.
  • the lower lifting housing 14 is provided with a guide shoulder 24, on which the chock 5 with the sliding surface 25 can be displaced.
  • the upper lifting housing 15 is provided in the axial plane of this work roll with a guide shoulder 26 on which the chock 4 can be displaced with a sliding surface 27.
  • the work rolls 2, 3 are assigned axial displacement devices, the construction of which is described below with reference to FIG. 6.
  • a hydraulic cylinder 28 is attached to a plate 29 on the side of the lifting housing 14 or 15.
  • the piston rod 30 of the hydraulic cylinder 28 is connected to a driver housing 31 which is displaceably guided on the hydraulic cylinder 28 and on which a locking hook 32 is rotatably mounted, which engages over a driver bracket 33 arranged on the chock 4, 5.
  • a driver housing 31 which is displaceably guided on the hydraulic cylinder 28 and on which a locking hook 32 is rotatably mounted, which engages over a driver bracket 33 arranged on the chock 4, 5.
  • one chock 4, 5 is assigned two axial displacement devices, the hydraulic cylinders 28 of which are jointly acted upon for axial displacement, the force being transmitted from the chock 4, 5 via its bearing 34 to the work roll 2, 3.
  • the fastening of the hydraulic cylinder 28 to the lifting housings 14, 15 has the advantage that the vertical relative movements between the chock 4 or 5 and the displacement system 28 - 33 and thus tilting moments in the work roll bearings 34 are avoided.
  • the bending cylinders 22 arranged in the upper lifting housings 15 are acted upon on the outside of the piston, as a result of which compressive forces act on the lower lifting housings 14 via the piston rods 23.
  • upward forces are directed from the guide shoulder 26 of the upper lifting housing 15 onto the sliding surfaces 27 of the chocks 4 and downward from the guide shoulders 24 of the lower lifting housing 14 Transfer forces to the sliding surfaces 25 of the chocks 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Metal Rolling (AREA)
EP87111182A 1986-08-14 1987-08-03 Dispositif pour plier et balancer des cylindres de travail décalables axialement d'une cage quarto Withdrawn EP0256408A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863627690 DE3627690A1 (de) 1986-08-14 1986-08-14 Biege- und ausbalanciervorrichtung fuer axial verschiebbare arbeitswalzen eines quartowalzgeruestes
DE3627690 1986-08-14

Publications (2)

Publication Number Publication Date
EP0256408A2 true EP0256408A2 (fr) 1988-02-24
EP0256408A3 EP0256408A3 (fr) 1988-06-01

Family

ID=6307439

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87111182A Withdrawn EP0256408A3 (fr) 1986-08-14 1987-08-03 Dispositif pour plier et balancer des cylindres de travail décalables axialement d'une cage quarto

Country Status (2)

Country Link
EP (1) EP0256408A3 (fr)
DE (1) DE3627690A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202173B (en) * 1987-03-19 1991-08-14 Davy Mckee Rolling mill
EP0768125A1 (fr) * 1995-09-28 1997-04-16 Sms Schloemann-Siemag Aktiengesellschaft Dispositif de guidage pour une cage de laminoir à quatre cylindres ou plus
US6164111A (en) * 1998-10-19 2000-12-26 Voest-Alpine Indstrieanlagenbau Gmbh Bending device for two working rolls of a roll stand
WO2002002254A1 (fr) * 2000-06-30 2002-01-10 Sms Demag Aktiengesellschaft Cage de laminoir, en particulier cage duo ou quarto de laminoir, comportant des dispositifs de flexion et d"equilibrage pour des cylindres pouvant coulisser axialement
WO2010084011A1 (fr) 2009-01-23 2010-07-29 Sms Siemag Ag Dispositif de flexion et d'équilibrage pour des cylindres de travail à déplacement axial d'une cage de laminoir
US8132440B2 (en) 2005-10-10 2012-03-13 Siemens Vai Metals Technologies Ltd. Roll bending device
US8196444B2 (en) 2006-04-21 2012-06-12 Siemens Vai Metals Technologies Gmbh Bending device for two working rolls of a rolling stand

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3815454A1 (de) * 1988-05-06 1989-11-16 Schloemann Siemag Ag Biege- und ausbalanciervorrichtung fuer axial verschiebbare walzen eines walzgeruestes

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6608041U (de) * 1966-03-30 1971-06-03 Siemag Siegener Masch Bau Walzgeruest mit vorrichtung zum ausbalancieren sowie zur beeinflussung der walzendurchbiegung.
US3857268A (en) * 1971-12-10 1974-12-31 Hitachi Ltd Rolling mill and rolling method
EP0026903A1 (fr) * 1979-10-04 1981-04-15 Hitachi, Ltd. Laminoir
EP0059417A1 (fr) * 1981-02-28 1982-09-08 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir
EP0067040A2 (fr) * 1981-06-03 1982-12-15 Hitachi, Ltd. Laminoir
DE3331055A1 (de) * 1983-08-29 1985-03-14 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzgeruest mit axial verschieblichen arbeitswalzen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6608041U (de) * 1966-03-30 1971-06-03 Siemag Siegener Masch Bau Walzgeruest mit vorrichtung zum ausbalancieren sowie zur beeinflussung der walzendurchbiegung.
US3857268A (en) * 1971-12-10 1974-12-31 Hitachi Ltd Rolling mill and rolling method
EP0026903A1 (fr) * 1979-10-04 1981-04-15 Hitachi, Ltd. Laminoir
EP0059417A1 (fr) * 1981-02-28 1982-09-08 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir
EP0067040A2 (fr) * 1981-06-03 1982-12-15 Hitachi, Ltd. Laminoir
DE3331055A1 (de) * 1983-08-29 1985-03-14 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzgeruest mit axial verschieblichen arbeitswalzen

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202173B (en) * 1987-03-19 1991-08-14 Davy Mckee Rolling mill
EP0768125A1 (fr) * 1995-09-28 1997-04-16 Sms Schloemann-Siemag Aktiengesellschaft Dispositif de guidage pour une cage de laminoir à quatre cylindres ou plus
US6164111A (en) * 1998-10-19 2000-12-26 Voest-Alpine Indstrieanlagenbau Gmbh Bending device for two working rolls of a roll stand
DE19938217C2 (de) * 1998-10-19 2003-01-16 Voest Alpine Ind Anlagen Biegevorrichtung für zwei Arbeitswalzen eines Walzgerüstes
WO2002002254A1 (fr) * 2000-06-30 2002-01-10 Sms Demag Aktiengesellschaft Cage de laminoir, en particulier cage duo ou quarto de laminoir, comportant des dispositifs de flexion et d"equilibrage pour des cylindres pouvant coulisser axialement
US8132440B2 (en) 2005-10-10 2012-03-13 Siemens Vai Metals Technologies Ltd. Roll bending device
US8196444B2 (en) 2006-04-21 2012-06-12 Siemens Vai Metals Technologies Gmbh Bending device for two working rolls of a rolling stand
CN102292171A (zh) * 2009-01-23 2011-12-21 Sms西马格股份公司 用于轧机机架的可轴向移动的工作辊的弯曲和平衡装置
DE102009058876A1 (de) 2009-01-23 2010-07-29 Sms Siemag Ag Biege- und Ausbalanciervorrichtung für axial verschiebbare Arbeitswalzen eines Walzgerüstes
WO2010084011A1 (fr) 2009-01-23 2010-07-29 Sms Siemag Ag Dispositif de flexion et d'équilibrage pour des cylindres de travail à déplacement axial d'une cage de laminoir
TWI451917B (zh) * 2009-01-23 2014-09-11 Sms Siemag Ag 用於滾壓架之可軸向移動工作滾子之彎曲與平衡裝置
CN102292171B (zh) * 2009-01-23 2015-09-09 Sms西马格股份公司 用于轧机机架的可轴向移动的工作辊的弯曲和平衡装置
US9802231B2 (en) 2009-01-23 2017-10-31 Sms Group Gmbh Bending and balancing device for axially shiftable work rolls of a rolling mill

Also Published As

Publication number Publication date
EP0256408A3 (fr) 1988-06-01
DE3627690A1 (de) 1988-02-25

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Inventor name: BOHNENKAMP, HEINRICH