EP0937515B1 - Cylindre pour influencer la planéité - Google Patents

Cylindre pour influencer la planéité Download PDF

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Publication number
EP0937515B1
EP0937515B1 EP99102577A EP99102577A EP0937515B1 EP 0937515 B1 EP0937515 B1 EP 0937515B1 EP 99102577 A EP99102577 A EP 99102577A EP 99102577 A EP99102577 A EP 99102577A EP 0937515 B1 EP0937515 B1 EP 0937515B1
Authority
EP
European Patent Office
Prior art keywords
roll
rotation
rotating body
roller
load
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
EP99102577A
Other languages
German (de)
English (en)
Other versions
EP0937515A1 (fr
Inventor
Hans Georg Dr.-Ing. Hartung
Hans-Peter Richter
Helmut Kühn
Wolfgang Denker
Klaus Klamma
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 EP0937515A1 publication Critical patent/EP0937515A1/fr
Application granted granted Critical
Publication of EP0937515B1 publication Critical patent/EP0937515B1/fr
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
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/03—Sleeved rolls
    • B21B27/05—Sleeved rolls with deflectable sleeves
    • 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
    • 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

Definitions

  • the present invention relates to a roller according to the preamble of claim 1, in particular a backup roller for rolling flat goods.
  • the rolling forces are For example, metal tape, work rolls on top applied and must be as even as possible over the the entire length of the roller, i.e. the line of contact between the circumference of the roller and the belt should be straight run. This straightness is due to the rolled product disturbed what is in a more stressed zone and crowning the roller.
  • US Pat. No. 4,407,151 also suggests an option to influence the bending stiffness of a jacket roll Introducing proppants into the cavity.
  • Carrier disks attached to a shaft are to be selected Places over the roll length can be arranged.
  • the Discs themselves can pass through the cavity of the roller Pressure to be postponed.
  • the roll shell receives a shaft with a clearance fit.
  • the adaptation to the flat material to be processed is by axial Shift of the respective shafts achieved by two support rollers.
  • GB 2 094 687 A discloses a generic roll with a shaft and one thereof separate shaft jacket, which is made by means of bearing elements, which are also hydrodynamic or can be hydrostatic, is arranged on the shaft.
  • the storage means extend essentially over the entire length of the jacket.
  • the surface of the shaft is worked out, the axial length of which varies and by rotating the shaft about its axis the effective profile of the roll shell is adjustable.
  • a similar roller is known from GB 2 238 597 A.
  • the Wave surface divided into regions with different radii which according to the necessary compensation of an undesired setting of the jacket can be set as the respective load area.
  • the present invention has for its object a rigid generic roller to develop further.
  • a roller is proposed that consists of a rotating one Roll jacket with one arranged inside the roll jacket Plain bearings in the form of a rotating body for influencing the bending stiffness of the roll shell exists.
  • This Rotary body represents that generated by the rolling stock Load zone of the roll shell represents a counterforce this counterforce becomes a crown of the roll or work rolls counteracted.
  • a quick and optimal adjustment to the change of Rolling conditions is achieved by the rotating body like this is shaped that one of the stressed zone of the roll shell corresponding load area part of the lateral surface of a is rotationally symmetrical body and the boundary of this Shell surface is designed so that length of the circumference of the Rotary body width and / or position of the loading surface vary.
  • the load area is part of the lateral surface, for example of a cylinder. It can also be domed, for example, by drawing the outline of an ellipsoid or paraboloid describes. It is also conceivable that the Has a certain pattern.
  • the sliding body is not fixed, but rotatably mounted is and because of the proposed geometric shape, the Load area in the contact zone with other rollers or the rolling stock is brought into position by rotation, in which is the loading surface of the rotating body approximately that to be machined Bandwidth and the resulting Load zone in the roll jacket corresponds.
  • the rotating body in the area of its load area has a recess
  • the edge course as well as their contour is arbitrarily shaped. You can also several recesses of this type can be provided. The course of the boundary and the contour of these recesses will also be like the edge of the outer surface of the rotating body specifically calculated. These recessed areas as Relief areas are in the simultaneous appearance of Center and edge waves or quarter waves in the band of Advantage.
  • the rotating body has edge areas that correspond to the Connect the central load area. These marginal areas can also take any form.
  • the circumference of the edge regions advantageously increases Ends of the rotating body down, for example frustoconical.
  • the shape of the edge areas does not have to necessarily be rotationally symmetrical.
  • One embodiment suggests that a single rotating body is picked up by the jacket roller. It is also conceivable that several side by side within the cavity arranged rotating body are provided, each individually or together adapted to the rolling conditions by rotation can be.
  • a rotating body can preferably be used, which is composed of several sub-areas, the are interlocking or can be moved away from each other.
  • the proposed roller advantageously comes as a backup roller to use.
  • quarto and other multi-roll stands are conceivable.
  • Figure 1 shows an embodiment of the proposed rotating body 1, while in Figure 2 the installation of the Rotating body 1 in the support roller of a four-high mill stand is shown.
  • the rotating body 1 has a central loading surface 2 on that part of the lateral surface of a rotationally symmetrical Body, in this particular embodiment of a cylinder, is.
  • the boundary of this lateral surface 2 is designated 4.
  • the edge course is a consequence of the product range and is calculated individually.
  • the rotating body has next to the central loading zone 2 each adjoining edge areas 3.
  • these edge areas 3 are crooked on the cylindrical Center section 2 cut and frustoconical.
  • the cylinder 2 and the obliquely cut edge regions 3 have the same axis of rotation.
  • a recess 10 is provided (dashed line), that in the rotating body, for example by milling can be introduced.
  • the recess shows a teardrop-shaped Edge course 11.
  • the contour of the recess 10 inside the Rotary body is not shown, it can be any Accept history.
  • Figure 2 shows schematically the proposed rotating body 1 as a plain bearing in a cut roll jacket 5, the moves rotating on a work roll 6 during the Rotation body locked in a predetermined angle of rotation is.
  • the work roll 6 lies on the metal strip to be rolled 8th.
  • the loads caused by the rolling stock act disadvantageous to the crown of the work roll 6 and thus again on the flatness of the metal strip 8.
  • the rolling zone and the bulge of the Work roll 6 experience a counterforce through the backup roll, in particular by the rotating body 1.
  • the rotating body 1 is turned on and found so that the for the forces occurring optimal load area 2 of the rotating body with the load zone 9 is used.
  • Figure 3 shows the roll gap profile when rolling an 800 mm wide metal band in a four-high frame [2000 mm x 420 mm (AW) 1500 mm (SW)].
  • AW 2000 mm x 420 mm
  • SW 1500 mm
  • Figure 4 shows a comparison of the roll gap profiles in the rolling process with conventional back-up roller bearings whose influence on crowning optimized for a 1200 mm wide belt is. It can be seen that the roll gap profiles are less box-shaped and thus run more unfavorably.
  • Figure 5 shows the load distribution between the rotating body and the roll jacket over the belt width, here 800 mm.
  • the set loading area width is 770 mm.
  • the outer surface of the rotating body is established uniform load profile between the load area and the rotating roller jacket.
  • This even Load curve is synonymous with an almost constant Oil film thickness in the plain bearing and avoids unwanted Touching the slide bearing surfaces.
  • the center piece of the rotating body i.e. the Load area is parabolic-barrel-shaped.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Paper (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Claims (6)

  1. Cylindre constitué par une enveloppe de cylindre en rotation comportant des moyens agences à l'intérieur de l'enveloppe de cylindre et destinés à influencer la rigidité à la flexion de l'enveloppe de cylindre, les moyens d'influence étant un palier à glissement sous forme de corps de révolution (1) qui est réglable en étant mobile en rotation et qui est formé de telle sorte que sa surface de charge (2) correspondante à la zone sollicitée de l'enveloppe de cylindre fait partie de la surface enveloppe d'un corps à symétrie de révolution et la bordure (4) de cette surface enveloppe est réalisée de telle sorte que la largeur et/ou la position de la surface de charge varient le long de la périphérie du corps de révolution,
    caractérisé en ce que
    le corps de révolution présente, dans la zone de sa surface de charge (2), au moins une échancrure (10) dont le tracé de la bordure ainsi que le contour intérieur sont formés de manière quelconque.
  2. Cylindre selon la revendication 1, caractérisé en ce que le corps de révolution (1) comprend des zones marginales (3) qui se raccordent à la surface de charge et dont la périphérie diminue vers les extrémités.
  3. Cylindre selon la revendication 2, caractérisé en ce que les zones marginales (3) sont de forme tronconique.
  4. Cylindre selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu plusieurs corps de révolution (1) agencés les uns à côté des autres à l'intérieur de l'enveloppe de cylindre (5).
  5. Cylindre selon l'une des revendications précédentes, caractérisé en ce que le corps de révolution se compose de plusieurs zones partielles qui s'imbriquent avec ajustement les unes dans les autres ou sont mobiles en éloignement les unes des autres.
  6. Cylindre selon l'une des revendications précédentes, caractérisé en ce que le cylindre est utilisé à titre de cylindre de soutien dans une cage de laminoir du type quarto ou une cage quelconque à multiples cylindres pour laminer du matériau en forme de bande.
EP99102577A 1998-02-20 1999-02-11 Cylindre pour influencer la planéité Expired - Lifetime EP0937515B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19807115 1998-02-20
DE19807115A DE19807115C1 (de) 1998-02-20 1998-02-20 Walze

Publications (2)

Publication Number Publication Date
EP0937515A1 EP0937515A1 (fr) 1999-08-25
EP0937515B1 true EP0937515B1 (fr) 2003-04-16

Family

ID=7858375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99102577A Expired - Lifetime EP0937515B1 (fr) 1998-02-20 1999-02-11 Cylindre pour influencer la planéité

Country Status (11)

Country Link
US (1) US6138487A (fr)
EP (1) EP0937515B1 (fr)
JP (1) JP4778596B2 (fr)
KR (1) KR100581188B1 (fr)
CN (1) CN1113709C (fr)
AT (1) ATE237412T1 (fr)
BR (1) BR9917373A (fr)
CA (1) CA2262261C (fr)
DE (2) DE19807115C1 (fr)
RU (1) RU2220797C2 (fr)
TW (1) TW396065B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010014867A1 (de) 2009-04-17 2010-11-18 Sms Siemag Ag Verfahren zum Bereitstellen mindestens einer Arbeitswalze zum Walzen eines Walzguts

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10039000A1 (de) * 2000-08-10 2002-02-21 Sms Demag Ag Hohlmantelwalze
JP3747786B2 (ja) 2001-02-05 2006-02-22 株式会社日立製作所 板材用圧延機の圧延方法及び板材用圧延設備
DE102006002773A1 (de) 2005-07-07 2007-01-18 Sms Demag Ag Stützwalze für ein Walzwerk
US8607848B2 (en) * 2008-08-05 2013-12-17 Nucor Corporation Method for casting metal strip with dynamic crown control
US8607847B2 (en) * 2008-08-05 2013-12-17 Nucor Corporation Method for casting metal strip with dynamic crown control
US8505611B2 (en) 2011-06-10 2013-08-13 Castrip, Llc Twin roll continuous caster
CN102310082B (zh) * 2011-06-07 2015-12-02 东莞新能源科技有限公司 压辊

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4407151A (en) * 1980-07-17 1983-10-04 Davey-Loewy Limited Rolling mill
JPS5744404A (en) * 1980-07-17 1982-03-12 Davy Loewy Ltd Rolling mill
JPS57127507A (en) * 1981-01-30 1982-08-07 Ishikawajima Harima Heavy Ind Co Ltd Rolling mill
JPS57159206A (en) * 1981-03-12 1982-10-01 Davy Loewy Ltd Roll for rolling mill
GB2094687B (en) * 1981-03-12 1985-01-23 Davy Loewy Ltd Rolling mill rolls
FR2553312B1 (fr) * 1983-10-14 1987-05-22 Clecim Sa Procede de reglage de l'epaisseur et du profil d'un produit plat en cours de laminage
CH663452A5 (de) * 1983-12-22 1987-12-15 Escher Wyss Ag Walzvorrichtung.
JPS6158904U (fr) * 1984-09-18 1986-04-21
JPS61226105A (ja) * 1985-03-30 1986-10-08 Nisshin Steel Co Ltd 多段圧延機のロ−ル
US4722212A (en) * 1985-11-06 1988-02-02 United Engineering Rolling Mills, Inc. Self-compensating roll
GB2238597B (en) * 1989-09-15 1993-03-31 Davy Mckee Rolling mill roll
JPH03142008A (ja) * 1989-10-27 1991-06-17 Sumitomo Metal Ind Ltd クラウン調整ロール
DE19637584A1 (de) * 1996-09-14 1998-03-19 Schloemann Siemag Ag Lagerung für biegesteife Mantelwalzen auf einer Tragachse oder Tragwelle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010014867A1 (de) 2009-04-17 2010-11-18 Sms Siemag Ag Verfahren zum Bereitstellen mindestens einer Arbeitswalze zum Walzen eines Walzguts

Also Published As

Publication number Publication date
CA2262261A1 (fr) 1999-08-20
KR100581188B1 (ko) 2006-05-17
JP4778596B2 (ja) 2011-09-21
CN1226469A (zh) 1999-08-25
KR19990072752A (ko) 1999-09-27
CN1113709C (zh) 2003-07-09
JPH11309502A (ja) 1999-11-09
ATE237412T1 (de) 2003-05-15
EP0937515A1 (fr) 1999-08-25
TW396065B (en) 2000-07-01
RU2220797C2 (ru) 2004-01-10
CA2262261C (fr) 2008-07-08
DE19807115C1 (de) 1999-09-09
DE59905024D1 (de) 2003-05-22
US6138487A (en) 2000-10-31
BR9917373A (pt) 2002-06-11

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