EP0663246B1 - Cage de laminoir à cylindres réglables dans plans horizontaux - Google Patents

Cage de laminoir à cylindres réglables dans plans horizontaux Download PDF

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Publication number
EP0663246B1
EP0663246B1 EP94250292A EP94250292A EP0663246B1 EP 0663246 B1 EP0663246 B1 EP 0663246B1 EP 94250292 A EP94250292 A EP 94250292A EP 94250292 A EP94250292 A EP 94250292A EP 0663246 B1 EP0663246 B1 EP 0663246B1
Authority
EP
European Patent Office
Prior art keywords
rolls
roll
chocks
roll stand
working
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
EP94250292A
Other languages
German (de)
English (en)
Other versions
EP0663246A1 (fr
Inventor
Manfred Hansen
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0663246A1 publication Critical patent/EP0663246A1/fr
Application granted granted Critical
Publication of EP0663246B1 publication Critical patent/EP0663246B1/fr
Anticipated expiration legal-status Critical
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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
    • B21B31/07—Adaptation of roll neck bearings
    • 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
    • B21B13/145—Lateral support devices for rolls acting mainly in a direction parallel to the movement of the product

Definitions

  • the invention relates to a roll stand with two work rolls mounted in chocks in the roll stand and the work rolls supporting upper and lower back-up rolls also stored in the roll stand, and, if appropriate, intermediate rolls provided between the work and back-up rolls, the work rolls extending in a direction parallel to the roll axes Arranged vertically and are adjustably mounted in this and one of the roller pairs is provided with a roller bending device for bending the rollers of this roller pair in a plane parallel to the rolling direction.
  • a generic roll stand is known for example from DE 33 31 339 C1.
  • this known rolling mill it is proposed to provide the intermediate rolls of a roll stand with work rolls, support rolls and intermediate rolls arranged between work rolls and support rolls with a roll bending device with which the intermediate rolls can be bent in planes parallel to the rolling direction.
  • This rolling mill is intended to master a problem in rolling mill technology which consists in the production of a flat or tension-free strip. Since rolls generally bend over the length of the bale under the rolling load, even if large support rolls are used, a thickness error regularly occurs across the width of the material to be processed, which leads to different strip elongations across the width of the rolling stock. This means ripple of the strip, which can only be prevented incompletely by crowning the working rolls, because the deflection of the rolls depends on the rolling force and also changes with their change and changes in the strip width.
  • each chock is pivotally mounted about a central vertical axis in the stand window of the roll stand and each work roll about the pivot axes of its two chocks can be bent in the horizontal plane parallel to the rolling direction.
  • the adjustability of the chocks of the rollers serves to keep the cylindrical roller bearings of the rollers free of constraints from the rolling forces, and therefore the proposed bearing shells are designed in connection with bearing journals that enable the roller bearings to move on all sides.
  • the generic roll stand is designed so that the intermediate rolls are provided with a roll bending device.
  • the structural design of such roll bending devices leads to difficulties, especially since the space requirement of such a bending device severely impairs the accessibility of the rolling mill and the arrangement of such bending devices, for example on the work rolls, is not readily possible, which is why known rolling mills of this type usually the work rolls are designed as drag rolls.
  • the invention has for its object to construct a generic roll stand so that the other parts of the rolling mill, in particular the drive configuration and the devices for changing the rolls are not affected by the devices for bending the rolls.
  • each chock of the work rolls is pivotally mounted about a central vertical axis in the stand window of the roll stand and each work roll is bendable about the swivel axes of its two chocks in the horizontal plane parallel to the rolling direction, which is why Chocks of the work rolls are provided with extensions that protrude from the stand window, which are attacked by bending cylinders which are supported on the roll stand on both sides of the chocks.
  • the invention therefore proposes to rotate the chocks in a horizontal plane, so that the necessary bending devices become very simple.
  • the proposals of the invention can very easily and easily introduce a horizontal bending moment via the roller bearings into the work rolls without complicated bending devices, for example the installation and removal of the work rolls.
  • extension-side bending cylinders are positively connected to the extensions of the chocks with the interposition of the roller lock.
  • the chocks of the work rolls are provided on both sides with the bearing shells facing the stator, which correspond to correspondingly designed guide strips in the stator fender, the common center of radii of guide strips and bearing shells of each chock lying on the vertical axis, around which the chock is pivotable.
  • the present invention allows the work rolls to be driven in a particularly advantageous manner, the drive of the work rolls not being affected by the actual bending device due to the constructive work roll bending device.
  • the work rolls are bendable in opposite directions. This measure allows a particularly favorable vertical Achieve bending shape so that even with very thick back-up rolls, the work rolls can have a favorable influence on the flatness and the profile of the rolling stock.
  • the only drawing figure shows a roughly simplified representation of a horizontal section through the rolling stand of the invention at the level of the rolling stock plane.
  • the rolling mill shown is configured for flat products and in the example has four rolls, namely two work rolls, which are designated by 2, and two backup rolls (not shown).
  • the cut runs through the four stand posts labeled 1, in which the one visible work roll 2 is mounted with its chocks 3.1, 3.2.
  • the chocks at 3.1 and 3.2 are provided on both sides in the direction of the stand 1 with bearing shells 4 which correspond to guide strips 5.1 and 5.2 which are arranged in the stand window on the stands 1.
  • the chocks 3.1, 3.2 with their bearing shells 4 are in a manner not shown in the guide rails 5.1, 5.2 vertical, i.e. Movable perpendicular to the plane of the drawing.
  • the bearing shells 4 and the guide strips 5.1, 5.2 have such curved bearing surfaces that their common center of radius lies on the vertical axis X, about which the chocks 3.1, 3.2 can be pivoted.
  • the chocks 3.1, 3.2 In order to pivot the chocks 3.1, 3.2, they are provided with extensions 6 protruding from the upright windows, on which bending cylinders 8.1, 8.2 act, which in turn are fixed at 9 on uprights 1 of the roll stand.
  • the bending cylinders 8.2 On the drive side where the Drive spindle can be seen at 10, the bending cylinders 8.2 are connected directly to the extensions 6 of the chock 3.2 and connected to the stand 1.
  • the bending cylinders 8.1 actuate simultaneously displaceable plates 7, with which the chock 3.1 on the expansion side can be locked with the stand 1.
  • the plates engage in recesses 11 on the extensions 6 of the chock 3.1, the plates 7 being able to be pivoted, for example, about pivot axes 12 into a locking position and into an unlocking position.
  • the bending cylinders 8.1 not only take on the function as bending cylinders for the work rolls 2 about the axes 6, but also have the function of the locking cylinders
  • the rollers 2 are held by the support rollers (not shown), so that when bent in the dashed form there is also a vertical displacement component with which the flatness and profile of the strip can be influenced.
  • the roll gap as in known methods, can be adjusted in its vertical extent across the width.
  • the invention represents a particularly structurally simple solution which allows the roll change of the work rolls to be carried out without problems and does not impede the drive of the work rolls, if so desired.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Claims (5)

  1. Cage de laminoir, comportant deux cylindres de travail (2) montés dans des empoises dans la cage de laminoir et des cylindres d'appui supérieur et inférieur, montés de même dans la cage de laminoir, supportant les cylindres de travail (2), ainsi que, le cas échéant, des cylindres intermédiaires prévus entre les cylindres de travail et les cylindres d'appui, les cylindres de travail (2) étant agencés dans un plan vertical s'étendant parallèlement aux axes des cylindres et étant montés de façon réglable dans celui-ci, et une des paires de cylindres étant munie d'un dispositif de cintrage de cylindres pour cintrer les cylindres de cette paire de cylindres dans des plans parallèles à la direction de laminage,
    caractérisée en ce que chaque empoise (3.1,3.2) des cylindres de travail (2) est montée pivotante autour d'un axe vertical central (6) dans la fenêtre de montant de la cage de laminoir (1), et chaque cylindre de travail (2) peut être cintré autour des axes de pivotement (6) de leurs deux empoises (3.1,3.2) dans le plan horizontal parallèle à la direction de laminage, les empoises (3.1,3.2) des cylindres de travail (2) étant munies pour cela de prolongements (6) faisant saillie de la fenêtre de montant, sur lesquels s'engagent des cylindres de cintrage (8.1,8.2) qui s appuient sur le montant de cylindre (1) des deux côtés des empoises (3.1 ou 3.2).
  2. Cage de laminoir selon la revendication 1,
    caractérisée en ce que les cylindres de cintrage (8.1) du côté de démontage sont reliés mécaniquement aux prolongements (6) des empoises (3.1) avec interposition du verrouillage (7) des cylindres.
  3. Cage de laminoir selon la revendication 1,
    caractérisée en ce que les empoises (3.1,3.2) des cylindres de travail (2) sont munies, des deux côtés, de coquilles de support (4) en regard du montant (1), qui correspondent à des barrettes de guidage (5.1,5.2) réalisées de façon correspondante dans la fenêtre de montant, les centres communs des baguettes de guidage (5.1,5.2) et des coquilles de support (4) de chaque empoise (3.1,3.2) se trouvant sur l'axe vertical (X), autour duquel l'empoise (3.1 ou 3.2) peut pivoter.
  4. Cage de laminoir selon les revendications 1 à 3,
    caractérisée en ce que les cylindres de travail (2) sont entraînés.
  5. Cage de laminoir selon une ou plusieurs des revendications 1 à 4,
    caractérisée en ce que les cylindres de travail peuvent être cintrés dans des sens opposés.
EP94250292A 1993-12-20 1994-12-06 Cage de laminoir à cylindres réglables dans plans horizontaux Expired - Lifetime EP0663246B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4344097 1993-12-20
DE4344097 1993-12-20

Publications (2)

Publication Number Publication Date
EP0663246A1 EP0663246A1 (fr) 1995-07-19
EP0663246B1 true EP0663246B1 (fr) 1997-09-10

Family

ID=6505946

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94250292A Expired - Lifetime EP0663246B1 (fr) 1993-12-20 1994-12-06 Cage de laminoir à cylindres réglables dans plans horizontaux

Country Status (2)

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EP (1) EP0663246B1 (fr)
DE (1) DE59404029D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE523451C2 (sv) * 2001-09-27 2004-04-20 Avestapolarit Ab Publ Valsverk samt förfarande vid valsning med flyttbara arbetsvalsar
CN108144970A (zh) * 2017-12-22 2018-06-12 重集团大连工程技术有限公司 缸杆固定缸体随工作辊轴向移动的窜辊装置
CN114147070B (zh) * 2021-11-24 2023-10-24 北京京诚之星科技开发有限公司 轧机窜辊装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE467474C (de) * 1928-10-26 Berlin Karlsruher Ind Werke A Waelzlager fuer Walzwerke
DE686575C (de) * 1934-12-08 1940-01-12 Albert Uhlenbrock Selbsttaetig einstellbares Lager, insbesondere fuer Walzwerke
US2123754A (en) * 1935-05-16 1938-07-12 United Eng Foundry Co Deflection compensating roll bearing assembly
DE3331339A1 (de) * 1983-08-31 1985-03-14 Mannesmann AG, 4000 Düsseldorf Walzgeruest mit arbeits- und stuetzwalzen sowie zwischen diesen vorgesehenen zwischenwalzen
JP2972401B2 (ja) * 1991-08-26 1999-11-08 株式会社日立製作所 圧延機及び圧延方法
US5165266A (en) * 1991-11-04 1992-11-24 International Rolling Mill Consultants, Inc. Chockless roll support system

Also Published As

Publication number Publication date
DE59404029D1 (de) 1997-10-16
EP0663246A1 (fr) 1995-07-19

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