WO1994021397A1 - Structure de cage de laminoir - Google Patents

Structure de cage de laminoir Download PDF

Info

Publication number
WO1994021397A1
WO1994021397A1 PCT/SE1994/000213 SE9400213W WO9421397A1 WO 1994021397 A1 WO1994021397 A1 WO 1994021397A1 SE 9400213 W SE9400213 W SE 9400213W WO 9421397 A1 WO9421397 A1 WO 9421397A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
roll
unit
roll stand
stand arrangement
Prior art date
Application number
PCT/SE1994/000213
Other languages
English (en)
Inventor
Folke LEKSÉN
Börje GRANHOLM
Lars Tingvall
Lennart Danielsson
Original Assignee
Morgårdshammar Ab
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 Morgårdshammar Ab filed Critical Morgårdshammar Ab
Priority to EP94910622A priority Critical patent/EP0725689A1/fr
Publication of WO1994021397A1 publication Critical patent/WO1994021397A1/fr

Links

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
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • 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
    • B21B13/001—Convertible or tiltable stands, e.g. from duo to universal stands, from horizontal to vertical stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/06—Cassettes
    • 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
    • B21B27/06—Lubricating, cooling or heating rolls

Definitions

  • the present invention relates to a roll stand arrange ⁇ ment of the kind which comprises a roll unit, two drive spindles, a pinion stand and a drive unit.
  • Present day roll stand arrangements included in a rolling line of a rolling mill are comprised of sepa ⁇ rate parts which are connected to a supportive base structure and mutually coupled together to form a functional unit with the aid of coupling devices, which at times have the form of quick-fasteners which enable components to be separated quickly from one another to facilitate the exchange of mill components and maintenance.
  • the drawback with this arrangement resides in the number of working procedures that must be carried out when changing a component, for instance when changing rolls. Another drawback resides in the amount of work that is required in installing and trimming such a roll stand arrangement so that it can be integrated in the rolling line. Furthermore, when switching from one rolled product to another rolled product, it is often sufficient to replace a roll stand arrangement fitted with horizontal rolls in a rolling line with a similar roll stand arrangement that is fitted with vertical rolls, and vice versa. There is therefore a need to construct the roll stand arrangements so that the rolls can be fitted both horizontally and vertically without needing to make radical adjustments and with ⁇ out comprehensive reconstruction of the roll stand arrangement.
  • the object of the present invention is to eliminate these drawbacks and to satisfy said requirements.
  • a roll stand arrangement of the kind defined in the introduction which is characterized in that the roll stand arrangement is constructed to form an assembly unit which can be incorporated in the line with the roll shafts extending at any desired angle to the horizontal plane.
  • the roll stand arrangement ⁇ ment is constructed as an assembled unit at the time of its manufacture, the unit can be transported to the rolling mill and assembled as a single unit in the rolling line, therewith considerably shortening and simplifying incorporation of the unit in the rolling line.
  • individual components of the roll stand arrangement, cr the roll stand arrangement as a whole can be changed very quickly, because only one single assembly unit is mounted onto the supportive base structure.
  • the rolls included in one such roll stand arrangement can be placed both hori ⁇ zontally and vertically without needing to make any changes to the unit components, such as changes to the drive transmission.
  • the roll stand arrangement includes a pinion stand housing which is attached to a supportive base structure and which supports the entire roll stand arrangement.
  • the roll unit is carried by a cassette which can be connected to the pinion stand housing by means of a coupling which enables the cassette to be fully supported by the pinion stand housing when the cassette is connected thereto. This facilitates quick exchange of the roll unit of a roll stand arrangement.
  • the drive unit of the roll stand arrangement will preferably include an alternating current motor and a planetary gear mechanism, wherein the alternating current motor is placed adjacent the planetary gear mechanism parallel therewith and with its output shaft located in the same plane as the input shaft of the planetary gear mechanism, said shafts being mutually connected by means of a torque-transmitting device.
  • the gravitational centre of the roll stand arrangement will lie in the centre region of the pinion stand housing, which facilitates handling of the roll stand arrangement during trans- portation and exchange, and means that the bending forces to which the attachments of the pinion stand housing to the supportive base structure are subjected will be smaller than would otherwise be the case.
  • the roll stand arrangement is carried by a pivotal frame structure so as to be movable in a direction at right angles to the rolling line.
  • Fig. 1 is a side view of a roll stand arrangement according to one embodiment of the invention
  • Fig. 2 shows the roll stand arrangement in Fig. 1 from above;
  • Fig. 3 is a sectional view of the roll stand arrange ⁇ ment shown in Fig. 1 with the unit in a dismantled state;
  • Figures 4 and 5 are respective vertical and horizontal sectional views of a roll stand arrangement according to Figure 1 in which the rolls are arranged horizon ⁇ tally;
  • Figure 6 is a vertical sectional view of a roll stand arrangement according to Figure 1 with the rolls arranged vertically; and Figs 7 and 8 are sectional views of a convertibly supported roll stand arrangement according to Fig. 1 with the rolls in a horizontal position and a vertical position respectively.
  • the illustrated exemplifying embodiment of a roll stand arrangement includes a roll unit 1, a cassette 2, a pinion stand 3 and a drive unit 4.
  • the roll unit 1 is carried by the cassette 2, which in turn is carried by the pinion stand housing 5, as is also the drive unit 4.
  • Two spindles 6, 7 are journalled in the pinion stand housing and are in driving connection with the rolls 9, 10 through the medium of a coupling holder 8 fitted to the housing.
  • the pinion stand housing also carries a roll hoist mechanism 11.
  • the drive unit 4 includes an alternating current motor 12 and a planetary gear mechanism 13, wherein the motor and the gear mechanism are placed adjacent one another with the output shaft of the alternating current motor in the same plane as the input shaft of the planetary gear mechanism. These shafts extend parallel with one another and are mutually connected by means of a gear transmission 14.
  • the planetary gear mechanism and the alternating current motor are both placed on that side of the gear transmission which lies proximal to the pinion stand housing.
  • the alternating current motor 12 is placed on one side of the planetary gear mechanism 13, although the construction which includes a gear transmission 14 which mutually connects the alternating current motor and the planetary gear mechanism enables the alternating current motor to be placed anywhere around the periphery of the planetary gearing, for instance above said planetary gearing.
  • the alternating current motor is attached to the gear transmission housing, and the gear transmission is, in turn, attached to the planetary gear housing, which is attached to the pinion stand housing.
  • the alternating current motor may alterna ⁇ tively be carried directly by the pinion stand hous ⁇ ing, if found desirable.
  • FIGS 4 and 5 show the roll stand arrangement illus ⁇ trated in Figures 1-3 fitted to a supportive base structure 15 with the rolls in a horizontal position.
  • the roll stand arrangement is mounted displaceably on the supportive structure through the medium of outwardly projecting guide flanges 16 each mounted on a respective side of the pinion stand housing and extending laterally to the longitudinal axis of the roll stand arrangement, said guide flanges 16 coacting with corresponding guides 17 on the sup ⁇ portive base structure.
  • Mounted on the undersurface of the pinion stand housing beneath the centre of gravity of the roll stand arrangement is an attachment flange 18 which has attached thereto one end of a rod 19 or the like which forms part of a displacement mechanism 20 mounted on the supportive base structure.
  • the displacement mechanism 20 is preferably a rack-and- pinion or screw-nut type mechanism, although other types of displacement mechanisms are conceivable, such as hydraulic piston-cylinder type mechanisms.
  • This arrangement enables the rolls 9, 10 to be displaced laterally in relation to the rolling line, by displac ⁇ ing the whole of the roll stand arrangement by means of the displacement mechanism.
  • the roll stand arrangement also includes a component fastening mechanism 21 which is mounted on the pinion stand housing 5 and which functions to fasten the cassette 2 to said housing, said mechanism being an eccentric type mechanism for instance, with which rotation of a cylindrical member will bring a surface, which is eccentric in relation to the rotational centre, into abutment with a complementary surface on the cassette and therewith press the cassette force- fully against an abutment surface on the pinion stand housing.
  • component fastening mechanisms other than an eccentric mechanism can be used.
  • the cassette 2 is connected to a withdrawal device 22 of known construction when positioned out of engagement with the pinion stand housing 5, i.e. when the cassette is not gripped by the eccentric surface on the component fastening mechanism 21.
  • the cassette, and therewith also the roll unit carried by the cassette can be moved to the left in the Figures 4 and 5 by means of the withdrawal device 22, until the entire cassette rests on a carriage nieans 23.
  • the roll unit 1 can be lifted from the cassette with the aid of an overhead crane or the like and replaced with a new roll unit, or alternatively the carriage means supporting the cassette and roll unit can be moved to one side later ⁇ ally in relation to the longitudinal axis of the roll stand arrangement and replaced with aother carriage means carrying a replacement cassette.
  • Figure 6 illustrates a roll stand arrangement accord ⁇ ing to Figures 1-3 mounted on a supportive base struc ⁇ ture 15 with the rolls extending vertically.
  • the roll stand arrangement is carried by a vertical frame structure 24 firmly mounted on the supportive base structure 15, this base structure being identical to the base structure illustrated in Figures 4 and 5.
  • the frame structure 24 carries the rod or bar 19 which coacts with the attachment flange 18 on the pinion stand housing 5 and which can be moved by means of the displacement mechanism 20 in the manner described with reference to Figures 4 and 5.
  • the frame structure 24 is also provided with guides 17 along which the pinion stand housing can slide.
  • the supportive base structure 15 of the Figure 6 embodiment includes a cassette withdrawal device 22 and carriages 23 for facilitating roll exchanges.
  • FIGS 7 and 8 illustrate a variant of the invention in which the roll stand arrangement is carried by a frame structure 25 which is pivotally mounted on a supportive base structure 26 for pivotal movement between a first position in which the shafts of rolls 9, 10 of one roll stand arrangement carried by the frame structure extend horizontally, and a second position in which the shafts of the rolls 9, 10 extend vertically.
  • the frame structure 25 is pivotally mounted on the supportive base structure 26 by means of two axle-ends which are firmly connected to the frame structure and project out opposite one another on opposite sides of the frame structure and each of which extends through a respective bearing box.
  • a lever arm is fitted to at least one of the axle-ends projecting out from re- spective bearing boxes and a suitable jack or ram means, for instance a hydraulic piston-cylinder de ⁇ vice, is pivotally mounted to the free end of said at least one shaft-end.
  • the other end of this jack, or ram is pivotally mounted on the supportive base structure 26.
  • the supportive base structures 15 and 26 each incorporate a lubricating system which functions to lubricate and cool the rotating parts of the roll stand arrangement.
  • the lubricant container 27 has a relatively large volumetric capacity, in the order of 500 1, so as to enable degasification and cooling of the recycled lubricant, oil.
  • the lubricant containers 27 are shown in the Figures to be carried by the supportive base structure, it will be understood that these containers, together with other lubricating system components, such as pumps, cou ⁇ plings and conduits, can be carried by the pinion stand housing.
  • the roll stand arrangement can be assembled by the suppli- er and then fitted into the rolling mill line in the form of a unit. This enables the roll stand arrange ⁇ ments forming part of a rolling mill line to be fit ⁇ ted, or mounted, very quickly. Since the pinion stand housing is secured to the supportive base structure in a very simple manner, the task of fitting the pinion stand housing to the base structure can be quickly achieved without the assistance of qualified person ⁇ nel. Furthermore, the roll stand arrangements can be used with the rolls extending horizontally or verti- cally without change, which naturally reduces the need of replacement roll-pairs, since only one type of unit need be kept in storage.
  • a rolling line comprised of roll stand arrangements which include such drive arrangements will occupy only a small space in comparison with a rolling line that is comprised of roll stand arrangements which include conventional drive arrangements, therewith enabling a reduction in the height and breadth dimensions of the rolling mill.
  • the described drive ar ⁇ rangement can be modified in different ways within the scope of the present invention.
  • the gear transmission can also be given a down-stepping function, so as to form a roll stand arrangement reduction gear together with the planetary gearing.
  • the means for the attachment of the pinion stand housing to the dis- placement mechanism mounted on the supportive base structure may be constructed differently to what is shown and described, and may be comprised of an at ⁇ tachment flange mounted on a respective side of the pinion stand housing and coacting with each rod of a correspondingly positioned displacement mechanism, wherein the two displacement mechanisms are driven synchronously with one another.
  • the roll shafts can also be positioned so as to extend at angles to the horizontal different to the aforedes- cribed angles, without changing the construction of the roll stand arrangement. The invention is therefore solely restricted by the content of the following Claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Retarders (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

L'invention concerne une structure de cage de laminoir comprenant une unité à cylindres (1), deux axes d'entraînement (6, 7), une cage à pignons (3) et une unité d'entraînement (4). La structure de cage de laminoir selon l'invention est conçue de manière à former un seul ensemble pouvant être monté avec les arbres de cylindre (9, 10) s'étendant selon n'importe quel angle voulu par rapport au plan horizontal.
PCT/SE1994/000213 1993-03-15 1994-03-14 Structure de cage de laminoir WO1994021397A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94910622A EP0725689A1 (fr) 1993-03-15 1994-03-14 Structure de cage de laminoir

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9300848-0 1993-03-15
SE9300848A SE505026C2 (sv) 1993-03-15 1993-03-15 Valsparsenhet

Publications (1)

Publication Number Publication Date
WO1994021397A1 true WO1994021397A1 (fr) 1994-09-29

Family

ID=20389229

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1994/000213 WO1994021397A1 (fr) 1993-03-15 1994-03-14 Structure de cage de laminoir

Country Status (4)

Country Link
EP (1) EP0725689A1 (fr)
CN (1) CN1121324A (fr)
SE (1) SE505026C2 (fr)
WO (1) WO1994021397A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1145124B (de) * 1959-12-24 1963-03-14 Konstruktionsbuero Fuer Schwer Austauschbares Walzgeruest
US4098107A (en) * 1975-12-22 1978-07-04 Pomini Farrel, S.P.A. Variably positionable rolling stand
DE2817897A1 (de) * 1978-04-24 1979-10-31 Heinrich Herrmann Schwenkgetriebe zum antrieb von walzgeruesten
DE3426414A1 (de) * 1984-07-18 1986-01-23 SMS Schloemann-Siemag AG, 4000 Düsseldorf Einadrige walzgeruestanordnung mit ortsfester walzmitte zum walzen von draht, feineisen, knueppel oder rohren
EP0406970A1 (fr) * 1989-07-04 1991-01-09 CASAGRANDE SpA Cage de laminoir basculante
US5078000A (en) * 1987-12-28 1992-01-07 Nkk Corporation Rolling mill with interchangeable roller apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1145124B (de) * 1959-12-24 1963-03-14 Konstruktionsbuero Fuer Schwer Austauschbares Walzgeruest
US4098107A (en) * 1975-12-22 1978-07-04 Pomini Farrel, S.P.A. Variably positionable rolling stand
DE2817897A1 (de) * 1978-04-24 1979-10-31 Heinrich Herrmann Schwenkgetriebe zum antrieb von walzgeruesten
DE3426414A1 (de) * 1984-07-18 1986-01-23 SMS Schloemann-Siemag AG, 4000 Düsseldorf Einadrige walzgeruestanordnung mit ortsfester walzmitte zum walzen von draht, feineisen, knueppel oder rohren
US5078000A (en) * 1987-12-28 1992-01-07 Nkk Corporation Rolling mill with interchangeable roller apparatus
EP0406970A1 (fr) * 1989-07-04 1991-01-09 CASAGRANDE SpA Cage de laminoir basculante

Also Published As

Publication number Publication date
SE9300848D0 (sv) 1993-03-15
EP0725689A1 (fr) 1996-08-14
CN1121324A (zh) 1996-04-24
SE9300848L (sv) 1994-09-16
SE505026C2 (sv) 1997-06-16

Similar Documents

Publication Publication Date Title
CN201030397Y (zh) 多功能卷圆机
CN1981948B (zh) 三辊轧管机
DE102014115241B4 (de) Pressenantriebsvorrichtung für eine Presse und Presse mit Pressenantriebsvorrichtung
US5649441A (en) Roll-pair drive arrangement
US5016806A (en) Tube weld mill
US4776232A (en) Gearbox arrangement for an industrial robot
JPH0763744B2 (ja) 圧延機
EP0725689A1 (fr) Structure de cage de laminoir
CA2179862C (fr) Porte-cylindres a module amovible de reglage de l'ecart entre cylindres
US4669294A (en) Rolling mill stand
CN101227986A (zh) 用于处理金属产品的机器的轧辊致动装置
EP0699111A1 (fr) Structure de cage de laminoir compacte
US4329864A (en) Apparatus for changing rolls in vertical rolling mills
CN1029091C (zh) 轧边机压模替换装置
US8573016B2 (en) Compression rolling mill having a drive unit
CN220837214U (zh) 一种铜套加工用压延机
EP0139199A1 (fr) Cages de laminoir
EP0644988A1 (fr) Unite de transmission pour l'entrainement de deux arbres paralleles.
JP2006326602A (ja) 圧延機
US5771733A (en) Compact rolling block
US3605474A (en) Rolling mill drive system
US1893290A (en) Rolling mill
CN102626729B (zh) 船用卷板机可变辊距的下辊驱动装置
SU992165A1 (ru) Механизм центрировани и перемещени длиномерных заготовок
CN111318577A (zh) 一种单机架独立传动模块化轧机及机组

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 94191776.2

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): CN KR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1994910622

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 1995 525517

Country of ref document: US

Date of ref document: 19950912

Kind code of ref document: A

WWP Wipo information: published in national office

Ref document number: 1994910622

Country of ref document: EP

WWR Wipo information: refused in national office

Ref document number: 1994910622

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1994910622

Country of ref document: EP