EP0354170B1 - Vorrichtung zur Axialführung der Walzen von Walzgerüsten - Google Patents

Vorrichtung zur Axialführung der Walzen von Walzgerüsten Download PDF

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Publication number
EP0354170B1
EP0354170B1 EP89730180A EP89730180A EP0354170B1 EP 0354170 B1 EP0354170 B1 EP 0354170B1 EP 89730180 A EP89730180 A EP 89730180A EP 89730180 A EP89730180 A EP 89730180A EP 0354170 B1 EP0354170 B1 EP 0354170B1
Authority
EP
European Patent Office
Prior art keywords
axial
rollers
roller
roll
chocks
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
EP89730180A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0354170A2 (de
EP0354170A3 (en
Inventor
Wilhelm Ing. Schwerdt (Grad)
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6360518&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0354170(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0354170A2 publication Critical patent/EP0354170A2/de
Publication of EP0354170A3 publication Critical patent/EP0354170A3/de
Application granted granted Critical
Publication of EP0354170B1 publication Critical patent/EP0354170B1/de
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
    • 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
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel

Definitions

  • the invention relates to a device for the axial guidance of the rolls of roll stands for the production of section steel.
  • a device for the axial guidance of the rolls of roll stands for the production of section steel For the rolling of profiles, in particular non-symmetrical profiles in caliber rolls, it is necessary to ensure that a certain relative axial position of the opposing rolls is maintained and, if necessary, to make a correction by changing the axial position of the rolls relative to one another.
  • axial forces arise in the rolling caliber, which negatively influence the accuracy of the rolling and the straight running of the rolling stock.
  • the object of the present invention is, using the proven rigid conventional system, to carry out an axial guidance of the rolls in which the axial forces occurring in the roll calibres can be compensated directly on the rolls.
  • the invention undertakes direct axial force compensation where it arises, namely on the roller itself, without having to give up the rigid conventional system. All that is necessary is to provide at least two bearings that absorb axial forces on each roller, one of which has to transmit only relatively small axial forces in combination with a radial bearing.
  • An economical solution can be a four-row tapered roller bearing paired with a strong thrust bearing.
  • rollers are mounted in displaceable chocks, the axial forces causing a displacement being measured on the chocks or in the vicinity thereof.
  • a hydraulic unit then acts on the strong axial bearing provided on the journal of the rollers, with which the acting axial force is opposed by an equally large, oppositely directed compensation force.
  • the axial bearings on the roll journals of one roll stand side are connected to a cross-piece extending transversely to the roll axes, on the two free ends of which double-acting piston-cylinder units are articulated which are supported on the roller stand.
  • duo roll stands it is sufficient to introduce a pair of forces into the rolls, for which the heavy crossbar is sufficient. Since it is a pure balancing of forces, the components belonging to the traverse, including the thrust bearing, need only be dimensioned according to strength and not according to the deformation.
  • the cylinder supporting the crossmember against the roll stand can be acted upon by a rapidly acting pressure control with cylinder forces which can be changed in size and direction, so that the external forces which act on the rolls in the axial direction can be traced back to zero.
  • This solution ensures that the forces that the conventional axial guide system has to absorb remain very low. At that time, this low level of force led to very small deformations in the entire axial guide system of the rollers.
  • each horizontal roller is then provided with an independent system for balancing the forces; it is therefore possible to dispense with the traverse described above for connecting the adjacent rollers.
  • the rolls of the set of rolls of the profiled rolls are designated by 1, which are mounted in chocks 2 in the roll stand 3 and, as indicated at 4, can be adjusted horizontally by means of spindles.
  • the rollers are loaded in the axial direction by the axial forces F A , which act on the roller bearings in the direction of the arrow.
  • Figure 2 also shows schematically the storage of the rollers in the chocks 2.
  • the roller journals 6 run in the chocks 2, in which they are rotatably mounted in tapered roller bearings 7.
  • the tapered roller bearings 7 are also able to absorb axial force components from the rollers.
  • the chocks 2 are displaceable in the axial direction by means of adjusting devices in the form of piston-cylinder units 8 and 9, for this purpose the linear movement of the piston-cylinder units 8 and 9 via levers 10 and 11, which are articulated at 12 on the roller stand are diverted, the levers 10 and 11 each acting in different directions of movement on a collar projection 13 of the guide bush 5.
  • the piston-cylinder units 14 are arranged at the free ends of a crossmember 5, which at 15 and 16 is connected by bolts and joints to the heavy axial bearing 17 (FIG. 2), which rests on each elongated roller journal 6a the roller 1 is seated.
  • the piston-cylinder units 14 forces can be transmitted to the axial bearings 17 via the crossmember 5, but their size in the opposite direction corresponds to the axial forces that arise in the calibres when the rolling stock is rolled. It is thus possible to reduce the external forces acting on the rollers in the axial direction to zero, with compensation taking place directly where the forces arise, namely on the roller. Deformations of the inner parts of the chocks including the bearing deformations are eliminated.
  • the system is extremely stiff due to the use of conventional mechanical components and particularly precise due to the reduction in the axial forces acting on the actual displacement device. This enables optimal axial guidance of the rolls during the rolling process, which ensures the quality of the rolled product.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
EP89730180A 1988-08-05 1989-08-02 Vorrichtung zur Axialführung der Walzen von Walzgerüsten Expired - Lifetime EP0354170B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3827018 1988-08-05
DE3827018A DE3827018A1 (de) 1988-08-05 1988-08-05 Vorrichtung zur axialfuehrung der walzen von walgeruesten zur herstellung von profilstahl

Publications (3)

Publication Number Publication Date
EP0354170A2 EP0354170A2 (de) 1990-02-07
EP0354170A3 EP0354170A3 (en) 1990-11-22
EP0354170B1 true EP0354170B1 (de) 1992-09-23

Family

ID=6360518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89730180A Expired - Lifetime EP0354170B1 (de) 1988-08-05 1989-08-02 Vorrichtung zur Axialführung der Walzen von Walzgerüsten

Country Status (3)

Country Link
EP (1) EP0354170B1 (ja)
JP (1) JP2651939B2 (ja)
DE (2) DE3827018A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003048006A (ja) * 2001-08-02 2003-02-18 Mitsubishi Heavy Ind Ltd 流体圧シリンダ及び圧延機
DE102007042896A1 (de) * 2007-03-15 2008-09-18 Sms Demag Ag Walzvorrichtung
CN104209330B (zh) * 2014-08-14 2016-05-11 湖州倍格曼新材料有限公司 用于生产带材的成型装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE551021C (de) * 1932-05-25 Anton Schoepf Dipl Ing Vorrichtung fuer Kaliberschleppwalzwerke zum Anstellen der Schleppwalzen in axialer Richtung
IT941182B (it) * 1970-11-18 1973-03-01 Nippon Kokan Kk Apparecchio di laminazionea freddo e relativo metodo di lavoro
US4203310A (en) * 1978-12-28 1980-05-20 Krylov Nikolai I Mill stand roll assembly
DE3628733A1 (de) * 1986-08-23 1988-02-25 Schloemann Siemag Ag Vorrichtung zum axialen anstellen der walzen von walzgeruesten zur herstellung von profilstahl

Also Published As

Publication number Publication date
EP0354170A2 (de) 1990-02-07
JP2651939B2 (ja) 1997-09-10
DE3827018A1 (de) 1990-02-08
DE58902329D1 (de) 1992-10-29
JPH02142606A (ja) 1990-05-31
DE3827018C2 (ja) 1992-06-04
EP0354170A3 (en) 1990-11-22

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