EP0286875B1 - Série de cylindres cannelés pour laminer de l'acier en barres et cage de laminoir à cet effet - Google Patents

Série de cylindres cannelés pour laminer de l'acier en barres et cage de laminoir à cet effet Download PDF

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Publication number
EP0286875B1
EP0286875B1 EP88104622A EP88104622A EP0286875B1 EP 0286875 B1 EP0286875 B1 EP 0286875B1 EP 88104622 A EP88104622 A EP 88104622A EP 88104622 A EP88104622 A EP 88104622A EP 0286875 B1 EP0286875 B1 EP 0286875B1
Authority
EP
European Patent Office
Prior art keywords
roll
rolls
diameter
rolling
roll stand
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
EP88104622A
Other languages
German (de)
English (en)
Other versions
EP0286875A2 (fr
EP0286875A3 (en
Inventor
Hugo Dr. Feldmann
Claus Schlanzke
Hans Heinrich Hartmann
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 Schloemann Siemag 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 Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to AT88104622T priority Critical patent/ATE64699T1/de
Publication of EP0286875A2 publication Critical patent/EP0286875A2/fr
Publication of EP0286875A3 publication Critical patent/EP0286875A3/de
Application granted granted Critical
Publication of EP0286875B1 publication Critical patent/EP0286875B1/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
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • 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
    • B21B13/005—Cantilevered roll stands
    • 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
    • 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
    • B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • 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
    • B21B2013/006—Multiple strand rolling mills; Mill stands with multiple caliber rolls
    • 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
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • B21B2031/023—Transverse shifting one housing
    • 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
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • B21B2031/026—Transverse shifting the stand
    • 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
    • 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
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • B21B31/06—Fastening stands or frames to foundation, e.g. to the sole plate
    • 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
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/26—Adjusting eccentrically-mounted roll bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
    • B21B35/142—Yielding spindle couplings; Universal joints for spindles
    • B21B35/145—Hooke's joints or the like with each coupling part pivoted with respect to an intermediate member

Definitions

  • the invention relates to a caliber roll set for rolling steel bars in a roll stand provided with an adjusting device for the built-in rolls.
  • the rolls for profile rolling have always had the same roll bale diameter, the length of the roll bales being exploited in that the corresponding caliber cuts are provided for the different profiles.
  • Each roll profile is therefore assigned the same roll diameter, which depends on the engagement conditions in the roll gap based on the thickest profile.
  • the so-called pressed length in the retracting roll gap which is dependent on the stitch decrease, should be so large that the incoming rolling stock is drawn into the roll gap, i.e. the rollers "bite".
  • the design of the roller diameter according to the thickest profile has the disadvantage that the roller diameter for lighter profiles is larger than an ideal engagement ratio requires. Furthermore, the proportion of width when rolling with rolls that are too thick increases compared to the stretching, so that the loss deformation increases and light profiles are rolled in an uneconomical manner.
  • the invention has for its object to provide a roll set for rolling steel bars with profiled rolls, in which each of the different rolled profiles can be rolled at least approximately under ideal rolling conditions.
  • the solution to this problem consists of the features of claim 1.
  • Step rollers of this type according to the invention are installed in the roll stand in such a way that in the axial central position of the roll bales the smallest roll diameter is opposite the largest roll diameter of the other roll. All that is then required is a relative axial displacement of the parts of each roller bearing the caliber incisions and a change in the center distance of the rollers in order to bring caliber incisions into a complementary operative position.
  • a configuration of the rolls with gradually increasing diameters can also be realized if the roll parts provided with caliber cuts have a frustoconical configuration.
  • This has the advantage that an axial displacement of at least one roller can be accompanied by a corresponding correction of the center distance of the rollers by actuating the adjusting device, but this results in the disadvantage that the conical diameter regions of the rollers which have collided on either side of the complementary caliber incisions due to the Taper unequal diameter and thus receive different axial circumferential speeds, which can lead to wear.
  • the rollers can be formed in one piece, which, because of the large axial adjustment paths that are necessary, makes it seem expedient to insert the roller journals in axially immovable chocks.
  • the roll parts provided with caliber incisions consist of sleeves which are axially displaceable on continuous shafts and rotatably connected or braced to the shafts.
  • roller parts provided with caliber incisions are axially oppositely displaceable, so that the rolling line remains constant and the roller table entry and exit roller tables do not have to be shifted to the side and height.
  • the maintenance of the rolling line also has another aspect:
  • the invention provides, provided that a fixed rolling line is provided, that the diameter range of each roller associated with the caliber incisions positioned on the complementary active position can be supported by adjustable support rollers.
  • roller journals or the continuous shafts can then be chosen so small in the interest of a clear diameter gradation that they can transmit the roller torque within the permissible torsional stresses.
  • a drive via the support rollers is also conceivable, so that the diameter of the roller journals or of the continuous shafts can also be selected independently of torsional stresses.
  • An advantageous clear diameter gradation of the profile rolls according to the invention can also be obtained without regard to the diameter of the roll neck by means of a roll stand in which the stepped rolls are mounted and driven in mirror image overhung in two drive housings, with at least one roll being radially adjustable and at least the other roll being axial is displaceable, and wherein the drive housing assigned to the upper roller has a recess in the axial direction of the lower roller, which allows the entry of smaller diameter areas of the lower roller when rolling the thickest profile.
  • This type of stand is for wire rolling stands, i.e. for rolls without diameter gradation, known in principle.
  • adjustable adjusting wedges can also be provided between the inclined sole plates and the drive housings (claim 8).
  • FIGS. 1 to 3 the configuration of parts of the rolls which are provided with stepwise increasing diameter areas and carry caliber incisions, reference is made to FIGS. 1 to 3.
  • the rolls 1, 2 shown here are in one piece and have roll bales provided with caliber cuts a, b and c.
  • the diameter incision a of the upper roller 1 is assigned a diameter range I with the smallest diameter Da, which is appropriate for the lightest of the rolled profiles.
  • a circular caliber c is cut into the next diameter region III with the largest diameter Dc in the exemplary embodiment.
  • the increasing diameter gradation from Da to Dc described does not need to be linear, rather what is decisive is which rolling profile in which diameter range should be rolled.
  • the diameter of the diameter ranges is then selected taking into account the favorable engagement conditions which depend on the rolled profile and the pass reduction.
  • the lower roller 2 is of identical design, only reversed in such a way that the largest diameter range III lies on the left instead of on the right, i.e. with the mean relative axial position of the two rolls 1 and 2 in FIG. 1 compared to the diameter range I of the upper roll 1. If the axial distance WAb is set in this axial position of the rolls 1, 2, the caliber incisions b of both roll parts complement each other to form the square roll profile B.
  • the diameter ranges II with their cylindrical surfaces lie opposite one another and have collided with one another during rolling in closed calibres.
  • the cylindrical surfaces of the diameter ranges I and III are expediently slightly ground so that the surfaces opposite in FIG. 1 do not touch due to their inevitably different peripheral speeds.
  • Fig. 3 the caliber incisions a for rolling the lightest rolled profile A are positioned in a supplementary active position.
  • This setting shows the already mentioned problem of the clear gradation in diameter and the thickness of the roll journals 1a and 2a.
  • the shaft or journal diameter DW would have to be dimensioned so small that the largest diameter range III does not touch a roll neck or a shaft end, because the center distance WAa is minimal when rolling the lightest rolled profile A.
  • these considerations led to the aforementioned concept of the four-high section roll stand (not shown) with preferably driven backup rolls.
  • Fig. 4 shows the frustoconical configuration of the rollers 11, 12 carrying roller incisions in the axial position according to Fig. 1 for the rolling of the middle rolled profile B.
  • the axial displacement indicated by the arrows and the adjustment of the rollers for setting the operative positions according to Figs. 2 and 3 can be in this "stepless" gradation of diameters can be done fairly simultaneously.
  • the roll stand shown schematically in FIG. 5 comprises two drive housings 3 and 4, in which the stepped rolls 1, 2 are mounted in mirror image according to the invention.
  • the axial position of the two rollers is adjusted to the rolling of the thickest profile c, the smaller diameter ranges I, II (FIG. 1) of the lower roller 2 having entered a recess 5 in the drive housing 3.
  • the drive housings 3 and 4 are displaceably guided on common, inclined sole plates 6, 7 and can be clamped thereon by means of clamping devices 8, 9, which are shown in simplified form.
  • the upper roller 1 can be adjusted radially by means of eccentric bushes, not shown, in that a worm gear mechanism (not shown) of a geared motor 10 serves to rotate the eccentric bushes.
  • the rolling line can be retained via the opposite axial displacement of the rolls 1, 2.
  • the upper roller 1 has to be temporarily lifted or ventilated by means of the eccentric adjustment, not shown, so that the cylindrical roller bale surfaces come past one another on both sides of the caliber incisions during the axial displacement on an inclined plane.
  • the dash-dotted lines 3 'and 4' the axial position of the drive housing 3 and 4 is indicated, which they take for rolling the smallest profile according to Fig. 3.
  • the upper roller 1 is driven directly via a variable-length joint spindle 16 from a comb roller stand, not shown.
  • Another variable-length joint spindle 17 extends through the drive housing 3 and drives a gearwheel 18 shown in dashed lines in the drive housing 4, which meshes with a gearwheel 19 of the lower roller 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Claims (8)

1. Jeu de cylindres cannelés pour le laminage de fers marchands dans une cage de laminoir munie d'un dispositif de réglage des cylindres, caractérisé en ce que les cylindres (1, 2 ou 11, 12) qui sont munis de cannelures (a, b, c) ont une configuration comportant des zones (I, II, III) dont les diamètres augmentent graduellement, en ce que des cannelures complémentaires sont ménagées dans les zones ayant le même diamètre pour le laminage et en ce que les cylindres sont montés dans une disposition de symétrie par rapport à un plan, de sorte que les cannelures correspondantes peuvent être placées, par un déplacement axial relatif ou par un réglage des cylindres, dans une position leur permettant de se compléter pour coopérer.
2. Jeu de cylindres selon la revendication 1, caractérisé en ce que les cylindres (11, 12) munis de cannelures ont une configuration en tronc de cône.
3. Jeu de cylindres selon la revendication 1, caractérisé en ce que les cylindres munis de cannelures sont constitués par des enveloppes de cylindres qui peuvent être engagées dans le sens axial sur des arbres traversant la cage et sont reliées à ces arbres ou serrées sur eux sans possibilité de rotation relative.
4. Cage de laminoir comportant un jeu de cylindres selon la revendication 1, caractérisée en ce que les cylindres peuvent être déplacés axialement en sens inverse et que la zone de chaque cylindre qui a un diamètre déterminé et correspond aux cannelures qui se mettent en position pour la compléter et coopérer avec elle peut prendre appui sur des cylindres d'appui extérieurs réglables.
5. Cage de laminoir comportant un jeu de cylindres selon la revendication 1, caractérisée en ce que les cylindres (1, 2) sont montés en porte-à-faux et dons une disposition de symétrie par rapport à un plan et sont entraînés dans deux enveloppes de commande, en ce que l'un au moins (1) des cylindres peut être réglé dans le sens radial et que l'autre cylindre (2) au moins peut être déplacé dans le sens axial et en ce que l'enveloppe de commande (3) correspondant au cylindre supérieur (1) comporte, dans la direction de l'axe du cylindre inférieur (2), un évidement (5) qui permet, pour le laminage du profil le plus épais (C), la pénétration des zones (I, II, III) de plus petits diamètres du cylindre inférieur.
6. Cage de laminoir selon la revendication 5, caractérisée en ce que l'une au soins des enveloppes de commande (4) pouvant se déplacer dans le sens axial est guidée et peut être fixée sur une des semelles (6) et en ce que le cylindre (1) monté dans l'autre enveloppe de commande (3) peut être réglé dans le sens radial par l'intermédiaire de boîtes à excentrique.
7. Cage de laminoir selon la revendication 6, caractérisée en ce que les deux enveloppes de commande (3, 4) sont guidées sur des semelles inclinées dans le même sens et peuvent fixées sur elles au moyen de dispositifs de serrage (8, 9).
8. Cage de laminoir selon la revendication 5, caractérisée en ce que les deux enveloppes sont guidées de manière à pouvoir être déplacées en sens inverse sur des semelles inclinées dans le même sens et peuvent être fixées sur elles au moyen de dispositifs de serrage et en ce qu'entre les semelles et les enveloppes de commande elle comprend des coins de réglage qui peuvent être déplacés lorsque les dispositifs de serrage sont desserrés.
EP88104622A 1987-04-11 1988-03-23 Série de cylindres cannelés pour laminer de l'acier en barres et cage de laminoir à cet effet Expired - Lifetime EP0286875B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88104622T ATE64699T1 (de) 1987-04-11 1988-03-23 Kaliberwalzensatz zum walzen von stabstahl und walzgeruest hierzu.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873712332 DE3712332A1 (de) 1987-04-11 1987-04-11 Kaliberwalzensatz zum walzen von stabstahl und walzgeruest hierzu
DE3712332 1987-04-11

Publications (3)

Publication Number Publication Date
EP0286875A2 EP0286875A2 (fr) 1988-10-19
EP0286875A3 EP0286875A3 (en) 1989-04-19
EP0286875B1 true EP0286875B1 (fr) 1991-06-26

Family

ID=6325433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88104622A Expired - Lifetime EP0286875B1 (fr) 1987-04-11 1988-03-23 Série de cylindres cannelés pour laminer de l'acier en barres et cage de laminoir à cet effet

Country Status (6)

Country Link
EP (1) EP0286875B1 (fr)
JP (1) JPS63264205A (fr)
KR (1) KR880012281A (fr)
CN (1) CN88102216A (fr)
AT (1) ATE64699T1 (fr)
DE (2) DE3712332A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0810424Y2 (ja) * 1990-03-05 1996-03-29 大同特殊鋼株式会社 圧延ロール
JP2566081B2 (ja) * 1990-12-19 1996-12-25 エイ・ティ・アンド・ティ・コーポレーション 光パケットのエンコーディング方法及びスイッチングノード
CN108244698A (zh) * 2016-12-29 2018-07-06 贵州中烟工业有限责任公司 卷接机组水松纸的切纸长度调整方法、装置及供给系统
CN107042233B (zh) * 2017-06-21 2019-12-27 华北理工大学 一种轧钢成型设备
CN107470371A (zh) * 2017-09-26 2017-12-15 德清广汇金属材料有限公司 扎头机
CN108213075B (zh) * 2018-02-08 2019-10-18 中海宏祥铜业江苏有限公司 一种铜杆轧机
CN108421827A (zh) * 2018-04-07 2018-08-21 新疆八钢铁股份有限公司 一种切分轧制孔型
CN114210732B (zh) * 2022-02-21 2022-05-17 山西太钢不锈钢精密带钢有限公司 一种背光板超平超薄精密带钢辊系精度控制方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE490185C (de) * 1930-01-27 Arthur Otto Walze insbesondere fuer Kaliberwalzwerke
DE599645C (de) * 1933-04-22 1934-07-13 Hans Cramer Dr Ing Kaliberwalzwerk
DE3417500A1 (de) * 1984-05-11 1985-11-14 SMS Schloemann-Siemag AG, 4000 Düsseldorf Duo-reversier-walzgeruest, insbesondere zum walzen von profilstahlquerschnitten

Also Published As

Publication number Publication date
DE3712332A1 (de) 1988-10-20
ATE64699T1 (de) 1991-07-15
EP0286875A2 (fr) 1988-10-19
DE3863384D1 (de) 1991-08-01
EP0286875A3 (en) 1989-04-19
KR880012281A (ko) 1988-11-26
CN88102216A (zh) 1988-11-09
JPS63264205A (ja) 1988-11-01

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