EP0492134B1 - Vorrichtung zum Ausbalancieren und vertikalen Biegen der Arbeitswalzen eines Quartowalzgerüstes - Google Patents

Vorrichtung zum Ausbalancieren und vertikalen Biegen der Arbeitswalzen eines Quartowalzgerüstes Download PDF

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Publication number
EP0492134B1
EP0492134B1 EP91119799A EP91119799A EP0492134B1 EP 0492134 B1 EP0492134 B1 EP 0492134B1 EP 91119799 A EP91119799 A EP 91119799A EP 91119799 A EP91119799 A EP 91119799A EP 0492134 B1 EP0492134 B1 EP 0492134B1
Authority
EP
European Patent Office
Prior art keywords
piston rod
chock
shaft
chocks
roll
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
EP91119799A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0492134A1 (de
Inventor
Axel Barten
Werner Moritz
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 EP0492134A1 publication Critical patent/EP0492134A1/de
Application granted granted Critical
Publication of EP0492134B1 publication Critical patent/EP0492134B1/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
    • B21B31/20—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

Definitions

  • the invention relates to a device for balancing and vertical bending of the work rolls of a four-high rolling mill, each with two double-acting hydraulic actuating cylinders installed in the lower work roll chocks of a roll stand, symmetrically to the roll axis plane, with an actuating piston for vertical adjustment of a piston rod, which, in rolling operation, has a coupling device with the upper one Work roll chock is firmly connected.
  • the piston rod of the actuating cylinder is designed to be continuous. This leads to the fact that the piston rod both in the extended operating position, in which the piston rod is locked to the upper roller chock via a hammer head, and in the retracted rest position, in which the hammer head of the piston rod is unlocked from the upper roller chock, into the upper one Installation piece protrudes.
  • the work rolls can only be removed together from the roll stand, and only after the removal can the rolls be separated, for example, for replacement as part of repair and maintenance work.
  • the invention has for its object to improve the generic device for balancing and vertical bending of the work rolls of a four-high mill with regard to the running properties of the actuating cylinders by eliminating transverse forces and a faster separate expansion of the work rolls.
  • the subclaims relate to expedient developments of the balancing and bending device.
  • the balancing and bending device is characterized by the following advantages:
  • the actuating forces required for the vertical bending of the work rolls by the hydraulic actuating cylinders are carried out exclusively in the direction of the cylinder axis, so that the running properties of the actuating pistons in the cylinders are not impaired by surface pressures occurring between the piston and the cylinder wall due to transverse forces.
  • the four-high rolling mill 1 is equipped with a device for balancing and vertical bending of the two work rolls 6, 7, which works with two double-acting hydraulic actuating cylinders 13 installed in the lower work roll chock 4 of the two roll stands 2 symmetrically to the roll axis plane 12-12.
  • the actuating cylinder 13 take an actuating piston 14 to extend a piston rod 15 in the rest position 15 'from the lower work roll chock 4 and retract the free end 15a of the piston rod 15 into the upper work roll chock 5 during rolling operation and to retract the piston rod 15 from the operating position 15 ⁇ in the rest position 15 'in the lower chock 4 for separate removal of the work rolls 6, 7 when a roll change is required.
  • the free end 15a thereof is fixedly connected to the upper chock 5 by means of a coupling device 16.
  • the interior of the actuating cylinders 13 is divided by the actuating piston 14 into an upper 13a and a lower cylinder chamber 13b, and the upper cylinder chamber 13a is connected to an inlet and outlet 18 for pressure oil leading into the cylinder cover 17, and the lower cylinder chamber 13b is connected to an am Cylinder base 19 attached supply and discharge line 20 connected for pressure oil.
  • the actuating piston 14 is guided against rotation on a pin 21 provided with two flattened portions, which sits centrally in the cylinder base 19.
  • the piston rod 15 engages with a conical centering pin 15b arranged centrally at its free end 15a in a corresponding conical recess 22b in the lower end 22a of a shaft which is articulated in the upper chock 5 and is secured against axial displacement under tensile and compressive stress 22.
  • the inner shell 23a of the spherical bearing 23 is fastened by means of a nut 24 on the upper end 22c of the shaft 22 provided with a threaded pin 22d and the outer shell 23b of the bearing 23 is fastened in the upper work roll chock 5 with a spacer sleeve 25 and a screw-in piece 26.
  • a leaf spring 28 is installed as an elastic anti-rotation device for the shaft 22.
  • the groove 27 in the upper shaft end 22c is of slightly spherical design, so that the leaf spring 28 can be adjusted somewhat, thereby ensuring an exact engagement of the coupling device 16 (FIG. 3).
  • the bayonet-type coupling device 16 for connecting the piston rod 15 extended from the lower chock 4 into the operating position 15 ⁇ with the shaft 22 in the upper chock 5 has ring segments 29 with an external thread 30 arranged on the free end 15a of the piston rod 15 with a certain pitch.
  • the coupling device 16 consists of an axially fixed coupling sleeve 31, which is rotatably mounted on the lower end 22a of the elastically rotationally secured shaft 22 and is opposite the free end 15a of the piston rod 15, and projects on the inside with the same pitch as the ring segments 29 the piston rod 15 arranged ring segments 32 with an internal thread 33 corresponding to the external thread 30 of the ring segments 29 and a rotary drive for the coupling sleeve 31 for engaging and loosening the threads 30, 33 of the ring segments 29, 32 of the piston rod 15 and the shaft 22 (FIGS. 4 and 5).
  • the rotary drive of the coupling sleeve 31 is designed as a rack and pinion drive, one by one Hydraulic cylinder 34 has actuated rack 35 which is in engagement with a ring gear 36 which is fixedly seated on the coupling sleeve 31, which is arranged on the lower end 22a of the shaft 22 so as to be rotatable in the axial direction (FIG. 4).
  • the engaged clutch device 16 for the fixed connection of the piston rod 15 extended from the lower chock 4 into the operating position 15 ⁇ during rolling operation with the shaft 22 articulated in the upper chock 5 is locked by the hydraulic cylinder 34.
  • pressure oil is introduced via the supply line 18 into the upper cylinder chamber 13a and the lower cylinder chamber 13b is discharged via the discharge line 20
  • the actuating cylinders 13 in the lower work roll chocks 4 of the two roll stands 2 of the four-high mill stand 1 cause the two work roll chocks 4, 5 in the roll stands 2 moved towards each other so that the work rolls 6, 7 are subject to a concave deflection in the vertical direction with respect to the roll gap 37.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Control Of Metal Rolling (AREA)
EP91119799A 1990-12-21 1991-11-21 Vorrichtung zum Ausbalancieren und vertikalen Biegen der Arbeitswalzen eines Quartowalzgerüstes Expired - Lifetime EP0492134B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4041290A DE4041290A1 (de) 1990-12-21 1990-12-21 Vorrichtung zum ausbalancieren und vertikalen biegen der arbeitswalzen eines quartowalzgeruestes
DE4041290 1990-12-21

Publications (2)

Publication Number Publication Date
EP0492134A1 EP0492134A1 (de) 1992-07-01
EP0492134B1 true EP0492134B1 (de) 1994-08-10

Family

ID=6421101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91119799A Expired - Lifetime EP0492134B1 (de) 1990-12-21 1991-11-21 Vorrichtung zum Ausbalancieren und vertikalen Biegen der Arbeitswalzen eines Quartowalzgerüstes

Country Status (4)

Country Link
US (1) US5253503A (enExample)
EP (1) EP0492134B1 (enExample)
JP (1) JPH0755327B2 (enExample)
DE (2) DE4041290A1 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2725389B1 (fr) * 1994-10-06 1996-12-27 Clecim Sa Installation de laminage
CA2287842C (en) 1998-02-27 2005-03-22 Nippon Steel Corporation Sheet rolling method and sheet rolling mill
US6250120B1 (en) 2000-06-27 2001-06-26 Morgan Construction Company Apparatus for rotatably supporting the neck of a roll in a rolling mill
CN112692071B (zh) * 2020-12-11 2023-10-24 陕西龙门钢铁有限责任公司 一种用于对带钢四辊轧机更换工作辊的提升装置
CN115318891B (zh) * 2022-08-17 2025-07-11 中冶赛迪工程技术股份有限公司 一种装配式平立辊双流成型装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE73497C (de) * F. H. DESENISS & A. JACOB! in Hamburg, Wendenstr. 133 Patronenhülse
DE955132C (de) * 1954-02-03 1956-12-27 Moeller & Neumann Gmbh Vorrichtung fuer das Anpressen der Arbeitswalzen bei Walzgeruesten
DE1289811B (de) * 1963-07-29 1969-02-27 Achenbach Soehne Gmbh Einrichtung zum Ausbalancieren und Durchbiegen der Arbeitswalzen eines Quartogeruestes
DE1527642A1 (de) * 1966-01-26 1970-04-09 Hoestemberghe & Kluetsch Gmbh Hydraulische Anstellvorrichtung zum Konstanthalten des Walzspaltes bei Walzgeruesten,insbesondere von Block- und Brammenwalzwerken
DE1752581C3 (de) * 1968-06-18 1974-05-09 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg Quarto-Walzgerüst
DE1936769A1 (de) * 1969-07-19 1971-02-04 Demag Ag Vorrichtung zur Balligkeitssteuerung der Arbeitswalzen in einem Duo-Metallwalzwerk
DE2804007A1 (de) * 1978-01-31 1979-08-02 Schloemann Siemag Ag Ausbalancierungs-, biege- und/oder stuetzvorrichtung fuer die arbeitswalzen von walzgeruesten
EP0059417B1 (de) * 1981-02-28 1985-01-02 Sms Schloemann-Siemag Aktiengesellschaft Walzgerüst
JPS57181704A (en) * 1981-04-28 1982-11-09 Kawasaki Steel Corp Roll bending device
JPS57181705A (en) * 1981-05-01 1982-11-09 Kawasaki Steel Corp Roll bending device
DE3638330A1 (de) * 1986-11-10 1988-05-19 Schloemann Siemag Ag Walzgeruest mit einer vorrichtung zum axialen verschieben von anstellbaren walzen
DE3728795A1 (de) * 1987-08-26 1989-03-09 Mannesmann Ag Walzgeruest mit arbeitswalzen

Also Published As

Publication number Publication date
US5253503A (en) 1993-10-19
JPH0755327B2 (ja) 1995-06-14
EP0492134A1 (de) 1992-07-01
DE4041290C2 (enExample) 1993-05-06
JPH0523716A (ja) 1993-02-02
DE4041290A1 (de) 1992-07-02
DE59102500D1 (de) 1994-09-15

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