EP1100633B1 - Cylindre d'appui ou intermediaire monte dans des laminoirs pour le laminage d'un produit plat - Google Patents

Cylindre d'appui ou intermediaire monte dans des laminoirs pour le laminage d'un produit plat Download PDF

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Publication number
EP1100633B1
EP1100633B1 EP99947207A EP99947207A EP1100633B1 EP 1100633 B1 EP1100633 B1 EP 1100633B1 EP 99947207 A EP99947207 A EP 99947207A EP 99947207 A EP99947207 A EP 99947207A EP 1100633 B1 EP1100633 B1 EP 1100633B1
Authority
EP
European Patent Office
Prior art keywords
roller
roll
pistons
backup
core
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
EP99947207A
Other languages
German (de)
English (en)
Other versions
EP1100633A1 (fr
Inventor
Dieter Figge
Wilhelm Schwerdt
Uwe Quitmann
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 EP1100633A1 publication Critical patent/EP1100633A1/fr
Application granted granted Critical
Publication of EP1100633B1 publication Critical patent/EP1100633B1/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

Definitions

  • the invention relates to a support or intermediate roll in rolling mills for rolling flat rolling stock, in particular strip, according to the preamble of claim 1.
  • Profile-ground rollers are also disadvantageous because they reach the complex contours are required for the desired contours Geometry must be very precise. Add to that the rolling stock under certain Conditions at the edge and in the middle are deformed differently; per roll stand a roller with a defined contour is required, which is different for each stand.
  • the German patent 34 14 242 is a roller with the generic type Features have been proposed.
  • wedge-shaped rings which are supplied by Hydraulic fluid can be moved in the longitudinal direction of the roller.
  • the wedge-shaped rings are with correspondingly wedge-shaped counter surfaces on the inner surface of the Paired roller shell and allow by applying a correspondingly high Hydraulic pressure to change the crown of the roller and thus changed Rolling forces and to adapt to different widths of the rolling stock.
  • the wedges with relatively small slope tend to be between the roll core and To clamp the roll shell, i.e. there is a self-locking of these wedges, the is difficult to release under rolling force. Because the wedges in the previously known solution have the function of expanding the roll shell are very high hydraulic pressures required via the wedge surfaces in expansion forces for the roll shell are to be implemented.
  • the object of the present invention is to improve a known one Jacket roller, an actuator which can be used in particular under rolling load for the profile and To create flatness control that avoids the disadvantages of the prior art and with the one by changing the rolled bale profile within wide limits Adaptation to the different conditions when rolling flat material is made possible.
  • the edges can usually be widened in the known solutions in the proposed solution, the bales are made thinner in the middle area.
  • the proposed solution is suitable for being adjusted under load because of a Widening of the roll shell as in the prior art described above Technology not done.
  • By axially displacing the ring pistons that support the support bearings their position is changed in relation to the length of the roller, so that depending on Adjustment position and thus the supporting effect of the roll shell is a "hard” or a “Soft” execution of the roller results.
  • the Ring piston with the support bearings each moved into their axial end positions where they can be fixed by fixed stops if necessary.
  • the one end position in which the ring piston in Positioned in the middle of the roller results in the "hard” supported roller.
  • the ring pistons move by means of pressure oil, which is introduced through the roller core via rotary connections.
  • annular pistons are designed in the manner of telescopic pistons and in turn carry independently controllable axially displaceable ring pistons for example with a hard set roller for 2000 mm belt width Roller jacket supported on the roller core via ten or twelve support bearings, so are set so that the approximately equal distance between the support bearings in the middle between two supports is about 110 mm.
  • the roll shell With appropriate dimensioning of the With a load of 4,000 t, the roll shell can bend 2 mm in the Bale center can be reached.
  • another feature of the invention suggested that at least four, preferably ten to twelve support bearings at least two to four ring pistons symmetrically distributed over the length of the rollers are arranged, the distances between adjacent support bearings in the central region of the Roll smaller than the distances that are selected towards the edge are selected.
  • the in Middle area of the roller grow smaller distances due to the higher load so towards the edge for larger amounts, creating a harmonious Deflection curve for the roller can be achieved.
  • the adjustment range can be used to a greater extent than before was possible; because experience has shown that the transition to Work roll and the rolling stock a large part is lost. You go rough Assume that about 1/3 of the crown arrives at the roller on the rolling stock.
  • the one with 1.3 mm achievable value of the invention is sufficient for most cases and is in connection with an effective roll bending a usable actuator, also with converted rolling stands.
  • the Ring pistons arranged symmetrically directly on both sides of the roller center in their extended end position can be moved against each other at the end. It means that the ring pistons adjacent to the middle of the roller to reach their hydraulic fluid until the middle end position self-centering against each other.
  • a double-conical support ring surface with a steep cone in cross-section is arranged which with corresponding conically flattened end parts of the annular piston in their middle end position correspond.
  • This proposal makes it possible to clamp or loosen the system with a small axial travel, because of the Steep cone of approximately 10 ° or more, no self-locking can occur, as is the case with generic state of the art may be the case.
  • the conical one End part of the ring piston is only used in the "hard” position, where the support the roller jacket in the middle area on conical surfaces that lie against each other and practically create a one-piece roller from the "built” jacket roller.
  • the roll shell can consist of a the base part encompassing the ring piston and an exchangeable wear part be put together. It is both conceivable to have an outer jacket on the Base part to be fixed by shrinking or removable coatings on the Apply roller jacket.
  • the sliding surfaces are in the bores nitrided and the ring pistons provided with bronze surfaces on the outside to the Improve sliding properties and minimize wear.
  • Same thing Reason is proposed according to a further feature of the invention as Use hydraulic fluid lubricating oil; because on the one hand they are adjustable
  • the annular piston required pressures relative to the pressures that the solution was after the state of the art requires, low (approx. 30 bar) and on the other hand promotes lubricating oil used the sliding properties.
  • a backup roller according to the invention designated, from the roller core 2, the indicated in cylindrical roller bearings 3rd stored roll neck 4 and the rotationally connected to the roll core 2
  • Roll shell 5 is made.
  • the entrainment of the roll shell 5 with the roll core is ensured via the sleeve 6, which at 7 in a toothing indicated at 8 of the roller pin engages.
  • the support roller 1 in the example shown is with a two-part roll shell 5, which consists of the base part 5a and replaceable wear part 5b is composed.
  • the roller shell can of course, also be in one piece.
  • Ring piston 9 claimed according to the invention and further arranged thereon Annular piston 10, both independently of one another axially displaceably, wherein in the upper half of the drawing, the ring pistons are moved so that there is a "hard” back-up roll results, and in the lower position shown the annular piston result in "soft" backup roller.
  • the ring pistons 9 slide with their bronzed surfaces on the nitrided surfaces of jacket and Walzenkem 2 and are both opposite in a manner not shown sealed the roll core and the inner surface of the roll shell.
  • Supply of pressure medium, in the present case lubricating oil via the one not shown
  • the rotary union and the feed bores 11 and 12 are the annular pistons 9 slidable on each side of the roller center, which changes the position of the support bearings, which are denoted overall by A to K, can be changed.
  • the in Back-up roller shown in the exemplary embodiment has a total of 10 support bearings A to K, which are each formed by annular projections of the annular pistons 9 and 10 and have cylindrical outer surfaces that are located on the cylindrical inside of the Put on the roller jacket 5 as a support.
  • the support bearings E and F, the middle area the support roller 1 are immediately adjacent, are provided with a steep cone can be applied to a roof-shaped double cone 15, which on the inner surface of the Roll shell 5 is formed.

Landscapes

  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Crushing And Grinding (AREA)

Claims (7)

  1. Cylindre d'appui ou intermédiaire dans des laminoirs pour laminer un produit plat, en particulier un feuillard, constitué d'un noyau de cylindre cylindrique (2) et d'une enveloppe de cylindre (5) tubulaire entourant coaxialement celui-ci et reliée de façon solidaire en rotation à celui-ci, entre laquelle et le noyau de cylindre sont agencés des corps d'appui déplacables axialement de façon hydraulique, qui appuient l'enveloppe de cylindre (5) contre le noyau de cylindre (2), les corps d'appui étant réalisés avec au moins deux pistons annulaires (9) agencés symétriquement par rapport au centre du cylindre et étanchéifiés par rapport au noyau de cylindre (2) et à la face interne de l'enveloppe de cylindre (5), et étant constitués de plusieurs paliers d'appui (A à K) annulaires, écartés les uns des autres en direction longitudinale du cylindre (1), et agencés à sa périphérie externe, contre lesquels la surface interne de l'enveloppe de cylindre (5) peut reposer,
    caractérisé en ce que les pistons annulaires (9) sont réalisés à la manière de pistons télescopiques et portent, de leur côté, des pistons annulaires (10) commandables de façon indépendante, sur lesquels sont réalisés d'autres paliers d'appui annulaires (A à K) écartés l'un de l'autre, les distances des paliers d'appui (A à K) aux paliers d'appui (A à K) agencés sur d'autres pistons annulaires (9, 10) ainsi que leur position relativement à l'extension longitudinale du cylindre (1) pouvant être modifiées par déplacement des pistons annulaires (9, 10).
  2. Cylindre d'appui ou intermédiaire selon la revendication 1,
    caractérisé en ce qu'au moins 4, avantageusement 10 à 12 paliers d'appui (A à K) sont agencés de façon symétriquement répartie sur au moins 2 à 4 pistons annulaires (9, 10) sur la longueur du cylindre (1), les distances de paliers d'appui voisins (A à K) dans la zone médiane du cylindre (1) étant choisies plus petites que les distances devenant plus grandes vers le bord.
  3. Cylindre d'appui ou intermédiaire selon la revendication 1,
    caractérisé en ce que les pistons annulaires (9) agencés symétriquement directement des deux côtés du centre du cylindre peuvent être déplacés l'un contre l'autre frontalement dans leurs positions d'extrémité sorties.
  4. Cylindre d'appui ou intermédiaire selon la revendication 1,
    caractérisé en ce que, au centre du cylindre sur le noyau de cylindre (2) et/ou la face interne de l'enveloppe de cylindre (5), il est agencé une surface annulaire d'appui en cône double (15) ayant un cône fort en forme de toit en section transversale, qui correspond avec des parties d'extrémité aplaties de façon conique correspondantes des pistons annulaires (9) dans leur position d'extrémité médiane.
  5. Cylindre d'appui ou intermédiaire selon la revendication 1,
    caractérisé en ce que l'enveloppe de cylindre (5) est constituée d'une partie de base (5a) correspondant aux pistons annulaires (9, 10) et d'une partie d'usure (5b) interchangeable.
  6. Cylindre d'appui ou intermédiaire selon la revendication 1,
    caractérisé en ce que les surfaces de glissement des perçages (9, 10) sont nitrurées et les pistons annulaires sont munis extérieurement de surfaces en bronze.
  7. Cylindre d'appui ou intermédiaire selon la revendication 1,
    caractérisé en ce que de l'huile lubrifiante est utilisée comme liquide hydraulique.
EP99947207A 1998-07-24 1999-07-12 Cylindre d'appui ou intermediaire monte dans des laminoirs pour le laminage d'un produit plat Expired - Lifetime EP1100633B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19835089A DE19835089C2 (de) 1998-07-24 1998-07-24 Stütz- oder Zwischenwalze in Walzwerken zum Walzen von flachem Walzgut
DE19835089 1998-07-24
PCT/DE1999/002176 WO2000006315A1 (fr) 1998-07-24 1999-07-12 Cylindre d'appui ou intermediaire monte dans des laminoirs pour le laminage d'un produit plat

Publications (2)

Publication Number Publication Date
EP1100633A1 EP1100633A1 (fr) 2001-05-23
EP1100633B1 true EP1100633B1 (fr) 2002-12-11

Family

ID=7876352

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99947207A Expired - Lifetime EP1100633B1 (fr) 1998-07-24 1999-07-12 Cylindre d'appui ou intermediaire monte dans des laminoirs pour le laminage d'un produit plat

Country Status (11)

Country Link
US (1) US6408668B1 (fr)
EP (1) EP1100633B1 (fr)
JP (1) JP4430823B2 (fr)
AT (1) ATE229382T1 (fr)
AU (1) AU6077399A (fr)
BR (1) BR9912363A (fr)
CA (1) CA2338495C (fr)
DE (2) DE19835089C2 (fr)
ES (1) ES2184503T3 (fr)
RU (1) RU2220014C2 (fr)
WO (1) WO2000006315A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6826941B2 (en) * 2000-12-29 2004-12-07 Ronald L. Plesh, Sr. Roller apparatus with improved height adjustability
US7637132B2 (en) * 2006-02-06 2009-12-29 Butech Bliss Work roll scraper for roller levelers
DE102007030408B4 (de) * 2007-06-29 2019-05-29 Kocks Technik Gmbh & Co. Kg Vorrichtung für ein Walzgerüst zum Walzen von stab- oder rohrförmigem Gut mit einer Walzenaufnahme und einer Walze
CN107866351A (zh) * 2017-11-30 2018-04-03 深圳华美板材有限公司 一种涂覆辊

Family Cites Families (9)

* 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
IT1163408B (it) * 1983-05-27 1987-04-08 Innocenti Santeustacchio Spa Cilindro per gabbie di laminazione nastri, particolaremente quale cilindro di appoggio in gabbie quarto
US4599770A (en) * 1984-04-06 1986-07-15 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Roll for rolling mill
DE3414242C1 (de) * 1984-04-14 1985-11-07 Ishikawajima-Harima Jukogyo K.K., Tokio/Tokyo Walze für ein Walzgerüst
JPS63220911A (ja) * 1987-03-06 1988-09-14 Hitachi Ltd 圧延機
US5001820A (en) * 1990-06-27 1991-03-26 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Roll for rolling mill
JP2870185B2 (ja) * 1990-11-15 1999-03-10 石川島播磨重工業株式会社 圧延機用ロール
JPH04197505A (ja) * 1990-11-28 1992-07-17 Ishikawajima Harima Heavy Ind Co Ltd ロール
DE19511187A1 (de) * 1995-03-27 1996-10-02 Yuli Dipl Ing Liu Verfahren und Vorrichtung zur lokalen Beeinflussung der Form des belasteten Walzspaltes in Bandwalzwerken

Also Published As

Publication number Publication date
ES2184503T3 (es) 2003-04-01
JP2002521205A (ja) 2002-07-16
AU6077399A (en) 2000-02-21
DE59903770D1 (de) 2003-01-23
DE19835089A1 (de) 2000-02-03
RU2220014C2 (ru) 2003-12-27
WO2000006315A1 (fr) 2000-02-10
DE19835089C2 (de) 2000-08-24
JP4430823B2 (ja) 2010-03-10
EP1100633A1 (fr) 2001-05-23
BR9912363A (pt) 2001-04-17
US6408668B1 (en) 2002-06-25
ATE229382T1 (de) 2002-12-15
CA2338495C (fr) 2008-04-29
CA2338495A1 (fr) 2000-02-10

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