EP1500442A1 - Dispositif de cintrage pour les cylindres d'une cage de laminoir à plusieurs cylindres - Google Patents

Dispositif de cintrage pour les cylindres d'une cage de laminoir à plusieurs cylindres Download PDF

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Publication number
EP1500442A1
EP1500442A1 EP04009765A EP04009765A EP1500442A1 EP 1500442 A1 EP1500442 A1 EP 1500442A1 EP 04009765 A EP04009765 A EP 04009765A EP 04009765 A EP04009765 A EP 04009765A EP 1500442 A1 EP1500442 A1 EP 1500442A1
Authority
EP
European Patent Office
Prior art keywords
adjusting sleeve
sleeves
sleeve
adjusting
bending
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.)
Granted
Application number
EP04009765A
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German (de)
English (en)
Other versions
EP1500442B1 (fr
Inventor
Axel Barten Dipl.-Ing. Eth
Eberhard Ing. Hambloch
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.)
Achenbach Buschhetten GmbH and Co KG
Original Assignee
Achenbach Buschhetten GmbH and Co KG
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 Achenbach Buschhetten GmbH and Co KG filed Critical Achenbach Buschhetten GmbH and Co KG
Publication of EP1500442A1 publication Critical patent/EP1500442A1/fr
Application granted granted Critical
Publication of EP1500442B1 publication Critical patent/EP1500442B1/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
    • 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

Definitions

  • the invention relates to a bending device for the rolls, in particular the work rolls of a multi-roll stand with in the stator windows blockwise arranged actuators, the on the roll chocks bending forces to the positive and Negative bending of the rollers exercise.
  • DE 196 20 704 C1 describes a Sextowalzgerüst with an upper and a lower support roller, an upper and a lower work roll and an upper and a lower Intermediate roller, a device for balancing the Back-up rolls, a bending device of the generic type for Work rolls and intermediate rolls, facilities for mutual axial displacement of the work and / or Intermediate rolls as well as with facilities for a horizontal Parallel displacement of the work rolls or intermediate rolls.
  • From DE 199 38 217 C2 is a bending device for the Work rolls of a rolling stand known with in lateral Roller stands provided guide blocks for two vertically adjustable pressure transferring body to which the work rolls supported by chocks, and with two each between the Pressure transmission bodies arranged bending cylinders, the one on a pressure transmitting body attacking piston rod and one formed by the other pressure transmitting body Have cylinder.
  • the hot rolling mill described in EP 1 181 114 B1 is equipped with blocks arranged in the pedestal windows, provided as bending devices hydraulic Piston-cylinder units have over linearly displaceable Guide pieces on the work roll chocks bending forces transfer.
  • Each block is a double-acting hydraulic Cylinder unit provided, whose both ends with the Guide pieces are connected, and embrace the guide pieces with guide grooves on both sides of the free ends of noses Work roll chocks, wherein the guide grooves of Guide pieces an axial displacement of the work rolls allow.
  • Roll benders for rolling stands according to the state
  • the technique requires a relatively large amount of space.
  • the hydraulic adjusting cylinder units for applying the Bending forces on the work roll chocks are technical consuming, and the installation of the rolling stands required as a result of needed numerous hydraulic connections a large Time required, which in turn leads to a corresponding increase in Installation costs leads.
  • the invention is based on the object Roll bending device, in particular a Stripper bending device for multi-roll stands with one minimal space requirement and simple hydraulic actuators with a high reliability for applying the To develop bending forces on the roll chocks.
  • the roll bending device according to the invention is characterized by the following advantages:
  • pressurized oil with each other nested adjusting sleeves as actuators for transmitting the by the pressure oil generated bending forces on the Roll chocks, in particular the work roll chocks for a positive and a negative bending of the work rolls allows a compact design of the bending device and a large guide length of the adjusting sleeves during the bending process, the one optimal support of the used as actuators Adjusting sleeves and the work roll chocks causes.
  • the Quartowalzgerüst 1 after the Fign. 1 to 3 is with a upper and a lower work roll 2, 3 equipped in Work roll chocks 4, 5 are stored, as well as with a upper of a lower support roller 6, 7, in Support roll chocks 8, 9 store.
  • the adjusting sleeve units 13 have a parallel to vertical roll axis plane 14-14 built-in guide column 15th on, which consists of an upper and a lower fixed piston 16, 17, the holders 18, 19 of the roll stand 10, 11 are fixed and the piston rods 20, 21st are screwed together.
  • Each adjusting sleeve unit 13 further comprises an upper and a lower inner adjusting sleeve 22, 23 with a gripping nose 26th having square top plate 24, 25, a cylindrical Middle part 27, 28 and a cylindrical shaft 29, 30.
  • Die inner adjusting sleeves 22, 23 have stepped, cylindrical Bores 31a, 31b; 32a, 32b for vertical displacement on the upper and lower pistons 16, 17 and their piston rods 20, 21st
  • the upper piston 16, the piston rod 20 and the upper inner adjusting sleeve 22 form an upper annular chamber 33
  • the lower piston 17, the piston rod 21 and the lower inner Adjusting sleeve 23 form a lower annular chamber 34.
  • the over channels 35, 36 in the piston rods 20, 21 interconnected Ring chambers 33, 34 of the adjusting sleeve units 13 are pressurized oil for execution in the direction of arrow a, b to the inside directed adjusting movement of the noses 26 to the Outer surfaces 39 of support lugs 37, 38 of the Work roll chocks 4, 5 engaging inner control sleeves 22, 23 for a negative bending of the work rolls 2, 3 acted upon.
  • Each adjusting sleeve unit 13 is further provided with two others coaxial with the two inner adjusting sleeves 22, 23 between the Head plates 24, 25 arranged outer adjusting sleeves 40, 41 with a quadrangular outer contour 42 equipped, both Adjusting sleeves 40, 41 an inwardly directed, cylindrical Approach 43, 44, the lower outer adjusting sleeve 41 with their approach 44 and a sealing ring 45 in an annular space 46 of immersed upper outer adjusting sleeve 40 and with this one closed annular chamber 47 forms, the upper outer adjusting sleeve 40 with its stepped bore wall 48a, 48b on the Middle part 27 and the shaft 29 of the upper inner adjusting sleeve 22nd and with the cylindrical projection 43 on the shaft 30 of the lower inner adjusting sleeve 23 and the lower outer adjusting sleeve 41 with its cylindrical projection 44 on the central part 28 of the lower inner adjusting sleeve 23, the cylindrical projection 43 of the upper outer adjusting sleeve 40 and in the annular space 46 thereof is vertically displaceable
  • the one from the two outside Adjusting sleeves 40, 41 formed annular chamber 47 is with pressure oil to Execution of a directed in the direction of arrow c, d adjusting movement by means of stop edges 49, 50 on the inner surfaces 51 of Support lugs 37, 38 of the work roll chocks 4, 5 engaging outer adjusting sleeves 40, 41 for a positive Bending of the work rolls 2, 3 acted upon.
  • the work roll bender is equipped with a device for releasing the gripping lugs 26 of the inner adjusting sleeves 22, 23 and the stop edges 49, 50 of the outer adjusting sleeves 40, 41 of Stellhülsenhowen 13 of the support lugs 37, 38 of Work roll chocks 4, 5 when removing the work rolls 2, 3 equipped.
  • the device for releasing the Work roll chocks 4, 5 have one of the upper inner Adjusting sleeve 22 and the upper outer adjusting sleeve 40 formed Ring chamber 52 and one in the annular space 46 of the upper outer Adjusting sleeve 40 with the cylindrical projection 44 of the lower outer adjusting sleeve 41 formed annular chamber 53 which through the Sealing ring 45 on the cylindrical extension 44 of the lower outer Adjustment sleeve 41 against the annular chamber 47 for the positive bend the work rolls 2, 3 and by a further sealing frame 54th is sealed at the upper outer adjusting sleeve 40 to the outside.
  • the two annular chambers 52, 53 are connected by a channel 55 in the upper outer adjusting sleeve 40 connected to each other and with Pressurized oil acted upon.
  • the pressurized in the axial direction Ring surfaces 52a, 52b of the upper inner adjusting sleeve 22nd and the upper outer adjusting sleeve 40 formed annular chamber 52nd are larger than those pressurized in the axial direction Ring surfaces 53 a, 53 b of the cylindrical projection 44 of the lower outer adjusting sleeve 41 and the upper outer adjusting sleeve 40 formed annular chamber 53, such that on the upper inner adjusting sleeve 22 and the upper outer adjusting sleeve 40 acting Actuating force greater than that on the lower outer adjusting sleeve 41st acting force is.
  • This power ratio causes in that when the two annular chambers 52, 53 are pressurized with oil for a work roll change the upper inner adjusting sleeve 22 in Arrow direction c up against the fixed upper piston 16 and the two outer adjusting sleeves 40, 41 together with the lower inner adjusting sleeve 23 against the fixed lower Pistons 17 are moved in the direction of arrow d down, so that the gripping lugs 26 of the upper and the lower inner Adjusting sleeve 22, 23 and the upper outer adjusting sleeve 40 with the Stop edge 49 of the support lugs 37, 38 of the upper and lower work roll chock 4, 5 solve and then the lower outer adjusting sleeve 41 by acting on this, by the pressure in the annular chamber 53 generated force and the Upper outer adjusting sleeve 40 against the acting on this, by the pressure in the annular chamber 52 generated force around a small stroke of a few millimeters in the direction of the arrow c are lifted up and the lower outer Adjusting sleeve 41 with its
  • the annular chambers 52,53 are for or during the entire Walzenchincicvorgangs pressurized to the off or Installation position of the adjusting sleeves 22, 23; 40, 41 to fix and sufficient clearance to the support lugs 37, 38 of the Work roll chocks 4, 5 to ensure.
  • the inner adjusting sleeves 22, 23 and the outer adjusting sleeves 40, 41 of the adjusting cylinder units 13 of the bending device are with wear plates 56-59 on guides 60 in the windows 12 the roll stand 10, 11 of the four-high stand 1 slidably arranged (Fig. 3).
  • the outer adjusting sleeves 40, 41 with their quadrangular Outer contour 42 have contact and guide surfaces 61, 62 for the Work roll chocks 4, 5, wherein the investment and Guide surfaces 61, 62 of the adjusting sleeves 40, 41 in addition as serve rotation for the adjusting sleeve unit 13.
  • the lugs 26 of the lower inner adjusting sleeves 23 of the Adjusting sleeve units 13 for the negative work roll bending form rail sections of the inner rails for off and Retracting the work rolls 2, 3 with the double wheels equipped work roll chocks 4, 5 at Work roll change. Gaps and edge breaks on the Inner rails are characterized by the double wheels of the Work roll chocks overcome.
  • the of the guide column 15, the two inner adjusting sleeves 22, 23 and the upper outer adjusting sleeve 40 formed chamber 63rd as well as the lower inner adjusting sleeve 23 and the two outer adjusting sleeves 40, 41 formed chamber 64 of the Stellhülseniseren 13 are via channels 65, 66 in the Guide post 15 and in the lower inner adjusting sleeve 23rd vented (Fig. 1).
  • the work roll bending device with in pairs in the guide columns 15 of the adjusting sleeve units 13 in the windows 12 of the two roll stands 10, 11 of the Quarto roll stand 1 built-in hydraulic prestressing cylinders 67, 68 are equipped, the cylinder chambers 69, 70 via not shown channels in the guide columns 15 with each other are connected and their adjusting piston 71, 72 on the chocks 8, 9 of the upper and lower support rollers 6, 7 act.
  • the Biasing cylinders 67, 68 are provided with return springs 73 for a Return of the actuating piston 71, 72 when removing the support rollers 6, 7 equipped.
  • the biasing cylinders 67, 68 are used for Preloading the Quartowalzgerüstes 1, to balance the upper support roller 6 and for lifting the upper support roller 6 at Removal and installation of the work rolls 2, 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Actuator (AREA)
EP04009765A 2003-07-25 2004-04-24 Dispositif de cintrage pour les cylindres d'une cage de laminoir à plusieurs cylindres Expired - Lifetime EP1500442B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10333883A DE10333883B3 (de) 2003-07-25 2003-07-25 Biegevorrichtung für die Walzen eines Mehrwalzengerüstes
DE10333883 2003-07-25

Publications (2)

Publication Number Publication Date
EP1500442A1 true EP1500442A1 (fr) 2005-01-26
EP1500442B1 EP1500442B1 (fr) 2005-09-28

Family

ID=32946480

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04009765A Expired - Lifetime EP1500442B1 (fr) 2003-07-25 2004-04-24 Dispositif de cintrage pour les cylindres d'une cage de laminoir à plusieurs cylindres

Country Status (4)

Country Link
EP (1) EP1500442B1 (fr)
AT (1) ATE305340T1 (fr)
DE (2) DE10333883B3 (fr)
ES (1) ES2246050T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8132440B2 (en) 2005-10-10 2012-03-13 Siemens Vai Metals Technologies Ltd. Roll bending device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19620704C1 (de) * 1996-02-23 1997-06-19 Achenbach Buschhuetten Gmbh Sextowalzgerüst und Quartowalzgerüst
DE19938217A1 (de) * 1998-10-19 2000-04-20 Voest Alpine Ind Anlagen Biegevorrichtung für zwei Arbeitswalzen eines Walzgerüstes
EP1087849B1 (fr) * 1998-06-17 2002-08-21 SMS DEMAG INNSE S.p.A. Dispositif de cintrage par rouleaux pour cages de laminoir
EP1181114B1 (fr) * 1999-05-14 2003-03-05 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
DE19620704C1 (de) * 1996-02-23 1997-06-19 Achenbach Buschhuetten Gmbh Sextowalzgerüst und Quartowalzgerüst
EP1087849B1 (fr) * 1998-06-17 2002-08-21 SMS DEMAG INNSE S.p.A. Dispositif de cintrage par rouleaux pour cages de laminoir
DE19938217A1 (de) * 1998-10-19 2000-04-20 Voest Alpine Ind Anlagen Biegevorrichtung für zwei Arbeitswalzen eines Walzgerüstes
DE19938217C2 (de) * 1998-10-19 2003-01-16 Voest Alpine Ind Anlagen Biegevorrichtung für zwei Arbeitswalzen eines Walzgerüstes
EP1181114B1 (fr) * 1999-05-14 2003-03-05 SMS Demag Aktiengesellschaft Dispositif de pliage pour les cylindres de travail d'une cage de laminoir a chaud

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8132440B2 (en) 2005-10-10 2012-03-13 Siemens Vai Metals Technologies Ltd. Roll bending device

Also Published As

Publication number Publication date
DE10333883B3 (de) 2004-10-07
ES2246050T3 (es) 2006-02-01
DE502004000074D1 (de) 2005-11-03
EP1500442B1 (fr) 2005-09-28
ATE305340T1 (de) 2005-10-15

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