WO2002002254A1 - Cage de laminoir, en particulier cage duo ou quarto de laminoir, comportant des dispositifs de flexion et d"equilibrage pour des cylindres pouvant coulisser axialement - Google Patents

Cage de laminoir, en particulier cage duo ou quarto de laminoir, comportant des dispositifs de flexion et d"equilibrage pour des cylindres pouvant coulisser axialement Download PDF

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Publication number
WO2002002254A1
WO2002002254A1 PCT/EP2001/007372 EP0107372W WO0202254A1 WO 2002002254 A1 WO2002002254 A1 WO 2002002254A1 EP 0107372 W EP0107372 W EP 0107372W WO 0202254 A1 WO0202254 A1 WO 0202254A1
Authority
WO
WIPO (PCT)
Prior art keywords
bending
roll stand
piston
und
sleeve
Prior art date
Application number
PCT/EP2001/007372
Other languages
German (de)
English (en)
Inventor
Harald Rackel
Original Assignee
Sms Demag Aktiengesellschaft
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
Priority claimed from DE10123794A external-priority patent/DE10123794A1/de
Application filed by Sms Demag Aktiengesellschaft filed Critical Sms Demag Aktiengesellschaft
Priority to EP01953181A priority Critical patent/EP1294499B1/fr
Priority to DE50105838T priority patent/DE50105838D1/de
Publication of WO2002002254A1 publication Critical patent/WO2002002254A1/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
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/203—Balancing rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends
    • 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

Definitions

  • Roll stand in particular duo or four-roll stand, comprising bending and balancing devices for axially displaceable rolls
  • the invention relates to a roll stand, in particular a duo or four-high rolling mill, comprising bending and balancing devices for axially displaceable rolls, a fixed guide block being attached in the height region of the roll chocks on both sides in the window of each roll stand and the force of bending cylinders on the in the axial direction and vertically displaceably guided roller chocks is transmitted.
  • Such a bending device with a displacement system for work rolls has become known, for example, from EP 0 256 408 A2.
  • the chocks receiving the bearings for the work rolls are arranged there via a sliding surface arranged in the middle height range on a guide shoulder of pressure transmission bodies arranged in pairs, which can be pressed apart in the vertical direction by two bending cylinders arranged between them.
  • the guide blocks have lateral guide webs which are encompassed by the pressure transmission bodies.
  • the respective lower pressure transmission bodies are additionally provided with a central guide leg to increase the guide length, which protrudes into the area of the respective upper pressure transmission body and engages in a guide groove of the guide block between the two guide webs.
  • the upper pressure transmission bodies which form a receiving recess for the guide leg of the associated lower pressure transmission body, have, for further guidance, a guide bolt projecting against the lower pressure transmission body and projecting into a guide bushing of the lower pressure transmission body.
  • the bending cylinders of this known device are arranged symmetrically to the guide pins so that the upper pressure transmission bodies form the cylinders, while the piston rods are supported in receiving recesses of the lower pressure transmission bodies. Since the bending cylinders are provided here between the mutually assigned pressure transmission bodies and are not supported on the guide block fixed to the stand, a bending stress caused by the bending action on the work rolls and thus the roll stands can be avoided.
  • the guide blocks are profiled on the roller side for vertical guidance of a lower lifting housing and an upper lifting housing in the form of a U with angled legs. The lifting housings grip around the angled legs in a claw-like manner, the sliding guides being provided around the legs.
  • the bending cylinders are, however, arranged outside the sliding surfaces, which leads to high moments in axial displacements and thus increased friction on the sliding surfaces.
  • the adjustment range of the axial displacement is limited in this bending and displacement system and is approximately in the order of +/- 50 to 100 mm.
  • the increased higher demands on the tolerance of the strip and the rolling of special materials require a larger axial adjustment range.
  • An increase in the axial displacement would, however, further increase the moments in this known construction.
  • the invention is therefore based on the object of providing a bending and balancing device with axial displacement of the rollers, which enables a larger axial adjustment range or displacement path without additional friction on the sliding surfaces and without increasing the moments to be applied.
  • This object is achieved in that the bending cylinders at the upper and lower piston ends are each formed with a greater length than width and are arranged with their longer axis extending in the direction of the axial displacement of the rollers.
  • a larger adjustment range can be achieved, for example +/- 100 to 200 mm, if the longer axis is 100 mm larger than the small one Axis is without significantly increasing the moments to be applied because there is always a sufficiently large contact surface available for the bending piston or the bending cylinder even with the longer displacement path. Due to the inventive design of the bending cylinders of the rollers of a duo stand or the work rolls of a four-high stand, the bending forces are also applied within the sliding planes, thus avoiding additional friction on the sliding surfaces.
  • the bending cylinders consist of two telescopic sleeves, one sleeve of which receives a sliding piston which is connected to the other piston sleeve via a pendulum support.
  • a floating arrangement in which the piston sleeve moves upwards or downwards in the guide block when the other sleeve is acted upon, which in the installed position generally represents the upper end of the bending cylinder.
  • a preferred embodiment of the invention provides that the sliding piston receiving sleeve and the piston sleeve are cylindrical in their interlocking central section and elliptical or oval at the ends.
  • the sleeves slide into one another in the cylindrical middle section, while the end-side elliptical or oval sleeve formation is for the increased axial adjustment range provides increased contact area.
  • the elliptical or oval shape can be easily manufactured in terms of production technology and can be sealed well against impurities, for example scale.
  • FIG. 1 of a roll stand not shown, as a detail in longitudinal section through a roll stand, the duo or work rolls stored therein with them in stationary guide blocks associated bending devices.
  • Fig. 2 as a detail in longitudinal section of one of the bending devices
  • FIG. 3 shows the bending device according to FIG. 2 cut along the line III-III;
  • FIG. 4 shows the bending device according to FIG. 3 in a top view
  • Fig. 5 cut the bending device according to Fig. 3 along the line V-V there.
  • the work rolls 4 and 5 mounted in a window 1 of a roll stand 2 with their chocks 3 are shown in FIG. 1 of a duo or four-high rolling mill well known as such.
  • the rolls 4 and 5 in the stand windows 1 of the mill stand are assigned both above and below with support rolls (not shown here), which are also mounted in chocks.
  • the ends in the Rollers 4, 5 mounted opposite one another can be adjusted vertically in the window 1 of the two opposite roll stands 2, one of which is shown in FIG. 1, in order to influence the bending profile of the rolls 4, 5 via this vertical adjustment, in particular in connection with a normal axial displacement of the rollers 4, 5.
  • each roller 4 is provided on both sides in the window 1 of each roller stand 2 stationary guide blocks 6 in the height region of the roller chocks 3.
  • These are provided with bending devices 7, of which two and thus a total of four are present in each window.
  • Each bending device 7 has a bending cylinder 8. This consists of an upper sleeve 10, which is closed at the top by means of a screwed cover 9, and a piston sleeve 11, which can be moved up and down in the installation position shown below.
  • the sleeves 10, 11 have cylindrical sections 10a, 11a on their mutually facing sides a middle section of the bending cylinder 8 forming area are concentrically inserted into one another, the upper sleeve 10a with its end cylindrical sleeve section 10a being immersed in the cylindrical sleeve section 11a of the piston sleeve 11.
  • a displacement piston 12 is arranged in the upper sleeve 10 and is connected to the lower piston sleeve 11 via a pendulum support 13.
  • the pendulum support 13 is spherical at the end and interacts with complementary thrust pieces 14 and 15 provided on the one hand in the displacement piston 12 and on the other hand in the piston sleeve 11.
  • Pressure medium bores 16 lead from the side of the cover 9 to a start-up pressure chamber 17 formed in the cover 9, which - with the displacement of the displacement piston 12, as shown in FIG. 1 - into a pressure chamber 18 of the upper sleeve or displacement piston receiving sleeve 10 transforms.
  • the chocks 3 of the work rolls 4 and 5 are supported by support lugs 20 and interposed sliding plates 21, which facilitate the displacement of the chocks 3 relative to the bending devices 7 or bending cylinders 8 during the axial adjustment of the rollers 4, 5 by means of the axial adjustment, not shown the covers 9 and on the other hand the end faces of the bottom of the piston sleeves 11.
  • FIGS. 2 to 5 which show a bending device 7, the bending cylinders 8 are for increasing the adjustment path for the axial roller displacement at their upper and lower piston ends, ie in the area on both sides of the centrally engaging central sections or respectively cylindrical sleeve sections 10a and 11a oval or elliptical (see. FIGS. 4 and 5).
  • the bending cylinders 8 or their elliptical, oval or the like curved end regions of the displacement piston receiving sleeve 10 and the piston sleeve 11 are so in the bending device 7 arranged that the longer axis 22 (see FIG.
  • FIGS. 3 and 4 extend in the direction of the axial displacement of the rollers; of the axial displacement means, usually hydraulic cylinders, only the stator attachments 23 which receive these means are shown in FIGS. 3 and 4 in a simplified manner.
  • the displacement path for the rollers 4, 5 increases by the difference between the longer axis 22 and the shorter axis 24 (cf. FIG. 4); In accordance with this oversize of the longer axis 22, an enlarged contact surface is available for the bending piston.

Landscapes

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

Abstract

L"invention concerne une cage de laminoir, en particulier une cage duo ou quarto de laminoir, comportant des dispositifs de flexion et d"équilibrage (7) pour des cylindres (4, 5) pouvant coulisser axialement. Sur les deux côtés, la fenêtre (1) de chaque montant de cage (2) comporte un bloc de guidage fixe (6) sur le côté haut des inserts de cylindres (3). La force de cylindres de flexion (8) est transmise sur les inserts de cylindres (3) pouvant coulisser axialement et verticalement. Sur la cage de laminoir selon l"invention, la longueur des cylindres de flexion (8) est supérieure à leur largeur au niveau des extrémités de piston supérieure et inférieure, et l"axe long des cylindres de flexion s"étend dans la direction du coulissage axial des cylindres (4, 5).
PCT/EP2001/007372 2000-06-30 2001-06-28 Cage de laminoir, en particulier cage duo ou quarto de laminoir, comportant des dispositifs de flexion et d"equilibrage pour des cylindres pouvant coulisser axialement WO2002002254A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP01953181A EP1294499B1 (fr) 2000-06-30 2001-06-28 Cage de laminoir, en particulier cage duo ou quarto de laminoir, comportant des dispositifs de flexion et d'equilibrage pour des cylindres pouvant coulisser axialement
DE50105838T DE50105838D1 (de) 2000-06-30 2001-06-28 Walzgerüst, insbesondere duo-oder quattrowalzgerüst, umfassend biege- und ausbalanciervorrichtung für axial verschiebbare walzen

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10031884.3 2000-06-30
DE10031884 2000-06-30
DE10123794A DE10123794A1 (de) 2000-06-30 2001-05-16 Walzgerüst, insbesondere Duo- oder Quartowalzgerüst, umfassend Biege- und Ausbalanciervorrichtung für axial verschiebbare Walzen
DE10123794.4 2001-05-16

Publications (1)

Publication Number Publication Date
WO2002002254A1 true WO2002002254A1 (fr) 2002-01-10

Family

ID=26006240

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/007372 WO2002002254A1 (fr) 2000-06-30 2001-06-28 Cage de laminoir, en particulier cage duo ou quarto de laminoir, comportant des dispositifs de flexion et d"equilibrage pour des cylindres pouvant coulisser axialement

Country Status (3)

Country Link
EP (1) EP1294499B1 (fr)
TW (1) TW501954B (fr)
WO (1) WO2002002254A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010084011A1 (fr) * 2009-01-23 2010-07-29 Sms Siemag Ag Dispositif de flexion et d'équilibrage pour des cylindres de travail à déplacement axial d'une cage de laminoir
CN101733288B (zh) * 2008-11-04 2011-09-28 上海重型机器厂有限公司 用于中厚板轧机的上下主传动轴的平衡装置
CN102814338A (zh) * 2012-09-07 2012-12-12 无锡市桥联冶金机械有限公司 轧机传动轴平衡装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4019156B1 (fr) * 2020-04-07 2023-12-13 Primetals Technologies Japan, Ltd. Laminoir, procédé de fabrication de laminoir, et procédé de modification de laminoir

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3601239A1 (de) * 1986-01-17 1987-07-23 Schloemann Siemag Ag Biegevorrichtung fuer die axial verschiebbaren arbeitswalzen eines vierwalzen-walzgeruestes
EP0256408A2 (fr) * 1986-08-14 1988-02-24 Sms Schloemann-Siemag Aktiengesellschaft Dispositif pour plier et balancer des cylindres de travail décalables axialement d'une cage quarto
DE3724557A1 (de) * 1987-07-24 1989-02-02 Schloemann Siemag Ag Kolben-zylindereinheit fuer walzgerueste
US4898014A (en) * 1988-12-23 1990-02-06 United Engineering, Inc. Roll shifting system for rolling mills
WO2000069579A1 (fr) * 1999-05-14 2000-11-23 Sms Demag Aktiengesellschaft Dispositif de pliage pour les cylindres de travail d'une cage de laminoir a chaud

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3601239A1 (de) * 1986-01-17 1987-07-23 Schloemann Siemag Ag Biegevorrichtung fuer die axial verschiebbaren arbeitswalzen eines vierwalzen-walzgeruestes
EP0256408A2 (fr) * 1986-08-14 1988-02-24 Sms Schloemann-Siemag Aktiengesellschaft Dispositif pour plier et balancer des cylindres de travail décalables axialement d'une cage quarto
DE3724557A1 (de) * 1987-07-24 1989-02-02 Schloemann Siemag Ag Kolben-zylindereinheit fuer walzgerueste
US4898014A (en) * 1988-12-23 1990-02-06 United Engineering, Inc. Roll shifting system for rolling mills
WO2000069579A1 (fr) * 1999-05-14 2000-11-23 Sms Demag Aktiengesellschaft Dispositif de pliage pour les cylindres de travail d'une cage de laminoir a chaud

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101733288B (zh) * 2008-11-04 2011-09-28 上海重型机器厂有限公司 用于中厚板轧机的上下主传动轴的平衡装置
WO2010084011A1 (fr) * 2009-01-23 2010-07-29 Sms Siemag Ag Dispositif de flexion et d'équilibrage pour des cylindres de travail à déplacement axial d'une cage de laminoir
CN102292171A (zh) * 2009-01-23 2011-12-21 Sms西马格股份公司 用于轧机机架的可轴向移动的工作辊的弯曲和平衡装置
KR101299940B1 (ko) 2009-01-23 2013-08-26 에스엠에스 지마크 악티엔게젤샤프트 롤 스탠드의 축방향으로 변위가능한 작업 롤을 위한 벤딩 및 밸런싱 장치
US9802231B2 (en) 2009-01-23 2017-10-31 Sms Group Gmbh Bending and balancing device for axially shiftable work rolls of a rolling mill
CN102814338A (zh) * 2012-09-07 2012-12-12 无锡市桥联冶金机械有限公司 轧机传动轴平衡装置

Also Published As

Publication number Publication date
TW501954B (en) 2002-09-11
EP1294499B1 (fr) 2005-04-06
EP1294499A1 (fr) 2003-03-26

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