US3600926A - Rolling stand in particular for the shaping of a cast bar immediately upon leaving a continuous-casting plant - Google Patents

Rolling stand in particular for the shaping of a cast bar immediately upon leaving a continuous-casting plant Download PDF

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Publication number
US3600926A
US3600926A US844410A US3600926DA US3600926A US 3600926 A US3600926 A US 3600926A US 844410 A US844410 A US 844410A US 3600926D A US3600926D A US 3600926DA US 3600926 A US3600926 A US 3600926A
Authority
US
United States
Prior art keywords
rolling stand
roll
driving shaft
baseplate
rolling
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
US844410A
Other languages
English (en)
Inventor
Ernst Hinterholzl
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.)
Voestalpine AG
Voest AG
Original Assignee
Voestalpine 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 Voestalpine AG filed Critical Voestalpine AG
Application granted granted Critical
Publication of US3600926A publication Critical patent/US3600926A/en
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
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/12—Toothed-wheel gearings specially adapted for metal-rolling mills; Housings or mountings therefor
    • 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
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • 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
    • B21B13/22—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for rolling metal immediately subsequent to continuous casting, i.e. in-line rolling of steel
    • 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
    • B21B2203/16—Eccentrics
    • 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
    • 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
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/12—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by vertically displacing
    • 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

Definitions

  • a rolling stand particularly destined for shaping a cast bar immediately upon leaving a continuouscasting plant, is described, comprising two upright roll standards having their bottom ends connected by a rigid cross connection and their top ends connected by a detachable cap connection to form a cage, a pair of insert-mounted horizontal rolls arranged to be vertically displaceable along said standards, and a baseplate on which said rolling stand is detachably mounted.
  • a transmission gear enclosed in a casing is detachably suspended on each roll shafi, said gears cooperating with and displaceable along a common vertical driving shaft connected for rotation with a drive arranged below floor; on separation from the baseplate, said rolling stand together with the suspended transmission gears and the driving shalt is vertically liftable and lowerable as a coherent, replaceable unit to move the driving shaft out of and into engagement with said drive.
  • the present invention relates to a rolling stand in particular for the shaping of a cast bar immediately upon leaving a continuous-casting plant, with two roll standards in which a horizontal pair of rolls with its inserts is arranged to be vertically displaceable, the roll standards having a rigid cross connection below and a detachable cap connecting above, and the rolling stand being detachably connected with a baseplate,
  • the problem with continuous-casting plants, in particular with multibar continuous-casting plants is to arrange the rolling stands used for further shaping of the castings subsequent to the casting process so as to save most space.
  • the aim is to achieve the closest possible side-by-side arrangement of the rolling stands so that the tundish located above the continuous casting moulds may be small and any loss in temperature of the liquid steel kept at a minimum.
  • the individual rolling stands have also to be placed in the closest possible tandem arrangement. Due to the low casting speed in continuous casting the feed speed of the casting in, the rolling stands is much smaller than with conventional rolling trains, resulting in an undesirably high loss temperature in the casting to be shaped in case of considerable distances between the individual rolling stands.
  • the compact structure of the rolling stands makes roll changing rather difficult and time consuming.
  • any roll changing or exchange of rolling stands, respectively, must be carried out as quickly as possible in case of a change of the rolling program or repairs so that the metallurgical operations will remain unaffected.
  • this problem is solved by suspending on each roll shaft a transmission gear enclosed in a casing and detachable therefrom, said gears cooperating with a common vertical driving shaft operated from below floor, and said rolling stand together with the suspended transmission gears and the driving shaft as a coherent unit being vertically liftable and lowerable upon having been separated from the baseplate and the driving shaft thus being either detachable from or attachable to the drive arranged below floor.
  • the vertical driving shaft is preferably designed as a spline shaft and engages with a driving wheel of the below-floor drive, fitted with suitable grooves.
  • the transmission gears suspended on the roll shafts may be displaceable on the driving shaft.
  • the roll shafts are preferably designed as spline shafts or as two-edge pieces, the bevel gears detachably arranged thereu pon having adequately shaped bores.
  • a centering device is suitably provided between the cross connection of the rolling stand and the baseplate.
  • the fixing of the rolling stand to the baseplate is preferably effected by a hydraulically operated clamping device joining the cross connection of the rolling stand to the baseplate, said clamping device being fixed to the baseplate and engaging the cross connection from below and forming a firm although easily releasable connection together with the centering device.
  • FIG. 1 shows a front view of a rolling stand with a sectional view of the suspended gears
  • FIG. 2 shows a side view of the rolling stand
  • FIG. 3 a vertical sectional view of the frame guiding the gear casings
  • FIG. 4 a plan view of the rolling stand.
  • Rolls 1, 2 are mounted in inserts 3, 4 being vertically guided in guided U-shaped roll standards 5, 6.
  • the lower ends of the roll standards 5, 6 are rigidly connected by a cross connection 7 and their upper ends by a detachable cap connection 8 to form a cagelike unit.
  • Numerals 9, l0 designate hydraulically operated cylinders for the adjustment of the rolls.
  • Two separate gear casings l2, 14 are suspended on the roll shafts ll, 12, which may be designed either as spline shafts or as two-edge pieces, and are connected to each other by a vertical drive shaft 15 designed as spline shaft.
  • Bevel gears l6, l7, l8, 19 are located in the gear casings l3, 14.
  • the bores of the bevel gears l6, 17 are adapted to the keys or the two-edge piece of the roll shafts l1, 12 for detachable connection.
  • the bores of the bevel gears l8, 19 have grooves adapted to the keys of the vertical drive shaft 15.
  • Gear casings l3, 14 together with the rolls 1, 2 and the inserts 3, 4 are vertically displaceable towards and from each other for changing the roll gap.
  • the drive 20, consisting of the gear 21 and the motor 22 is located below floor; said drive may be mounted in a base pit 23 or suspended from the baseplate 24.
  • the base plate 24 is aligned in the direction of rolling by means of centering bolts 25, 26, 27, 28 and fixed to the base 29 by anchor screws 30, 32, 31, 33, 34, 35.
  • a centering device 36 is provided on the base plate 24, by which the rolling stand may be accurately fixed with respect to the roll pass axis.
  • a hydraulically operated clamping device 37, 38, 39, 40, 41 serves for securing the cross connection 7 of the rolling stand to the base plate 24.
  • the levers 39, 40 connected with the hydraulically operated pistons of cylinders 37, 38 are in engagement with an eccentric part 41 revolvably arranged on the base plate 24, acting from below on the cross connection 7 forming together with the opposite centering device 36 a firm yet quickly releasable connection.
  • the torques required for shaping the casting are transmitted by the drive 20 via the spur wheel 42 through the drive shaft 15 and via the bevel gears l8, l9 and 16, 17 to the rolls 1,2.
  • the tilting moments developing in the gear casings l3, 14 are accommodated by a U-shaped frame 43 open at the top and solidly connected with the baseplate 24 FIG. 3).
  • the vertical branches 44, 45 guide the displaceable gear casings l3, 14.
  • centering bolts 46, 47 are provided to fix a frame 48 designed like an inverse U resting on the frame 43 on inclined bearing areas and destined to stiffen the upper part of frame 43.
  • a rolling stand for shaping rolling stock including continuously cast bars, comprising two upright roll standards hav ing their bottom ends connected by a rigid cross connection and their top ends connected by a detachable cap connection, a pair of horizontal rolls mounted in inserts with laterally projecting roll shafts and enclosing an adjustable roll gap being arranged to be vertically displaceable along said standards, a base plate supporting said roll stand, and releasable connection means securing said roll stand on said baseplate, each of said roll shafts being connected to a separate transmission gear enclosed in a casing detachably suspended on each of said shafts said gears cooperating with a common vertical driving shaft driven by a drive arranged below floor, and said rolling stand together with the suspended transmission gears and said driving shaft being vertically liftable and lowerable as a coherent unit upon release of said connecting means to move said driving shalt out of and into engagement with said drive.
  • said driving shaft is designed as a spline shaft engaging with a driving wheel of said drive which is fitted with correspondingly shaped grooves.
  • roll shafts are selected from spline shafts and two-edge pieces and are in releasable engagement with bevel gears of said transmission gears having adequately shaped bores.
  • connecting means comprise a hydraulically operated clamping device mounted on said baseplate and engaging said rigid cross connection from below to form a firm yet easily releasable connection together with centering means fixing said crossbeam in the direction of rolling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
US844410A 1969-04-23 1969-07-24 Rolling stand in particular for the shaping of a cast bar immediately upon leaving a continuous-casting plant Expired - Lifetime US3600926A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT391069A AT289014B (de) 1969-04-23 1969-04-23 Walzgerüst, insbesondere für die Verformung eines direkt aus einer Stranggußanlage auslaufenden Gußstranges

Publications (1)

Publication Number Publication Date
US3600926A true US3600926A (en) 1971-08-24

Family

ID=3557091

Family Applications (1)

Application Number Title Priority Date Filing Date
US844410A Expired - Lifetime US3600926A (en) 1969-04-23 1969-07-24 Rolling stand in particular for the shaping of a cast bar immediately upon leaving a continuous-casting plant

Country Status (11)

Country Link
US (1) US3600926A (enrdf_load_stackoverflow)
AT (1) AT289014B (enrdf_load_stackoverflow)
BE (1) BE749355A (enrdf_load_stackoverflow)
BR (1) BR7017857D0 (enrdf_load_stackoverflow)
CA (1) CA924546A (enrdf_load_stackoverflow)
CH (1) CH503524A (enrdf_load_stackoverflow)
CS (1) CS155234B2 (enrdf_load_stackoverflow)
DE (2) DE2018490A1 (enrdf_load_stackoverflow)
FR (1) FR2043416A5 (enrdf_load_stackoverflow)
GB (1) GB1298756A (enrdf_load_stackoverflow)
SE (1) SE348123B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040584A1 (en) * 1980-05-06 1981-11-25 DANIELI & C. OFFICINE MECCANICHE S.p.A. Stand for stationary rolling line
US5078000A (en) * 1987-12-28 1992-01-07 Nkk Corporation Rolling mill with interchangeable roller apparatus
US20210197458A1 (en) * 2019-11-19 2021-07-01 Yanshan University Micro-casting and Rolling Additive Manufacture for Large Special-shaped Pipes

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1064628B (it) * 1976-07-12 1985-02-25 Innocenti Santeustacchio Spa Gabbia perfezionata per presso laminatoio
FR2424129A1 (fr) * 1978-04-28 1979-11-23 Sormeca Dispositif de transmission de mouvement pour une machine du type des machines a gaufrer, a grainer ou a calandrer
AT379331B (de) * 1983-05-06 1985-12-27 Gfm Fertigungstechnik Walzgeruest fuer stabmaterial
CN113477718A (zh) * 2021-07-31 2021-10-08 朱文卿 一种用于生产异形钢丝的装置

Citations (1)

* 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

Patent Citations (1)

* 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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040584A1 (en) * 1980-05-06 1981-11-25 DANIELI & C. OFFICINE MECCANICHE S.p.A. Stand for stationary rolling line
US5078000A (en) * 1987-12-28 1992-01-07 Nkk Corporation Rolling mill with interchangeable roller apparatus
US20210197458A1 (en) * 2019-11-19 2021-07-01 Yanshan University Micro-casting and Rolling Additive Manufacture for Large Special-shaped Pipes
US11529761B2 (en) * 2019-11-19 2022-12-20 Yanshan University Micro-casting and rolling additive manufacture for large special-shaped pipes

Also Published As

Publication number Publication date
FR2043416A5 (enrdf_load_stackoverflow) 1971-02-12
CS155234B2 (enrdf_load_stackoverflow) 1974-05-30
CH503524A (de) 1971-02-28
BE749355A (fr) 1970-10-01
SE348123B (enrdf_load_stackoverflow) 1972-08-28
AT289014B (de) 1971-03-25
DE2018490A1 (enrdf_load_stackoverflow) 1970-10-29
BR7017857D0 (pt) 1973-05-24
CA924546A (en) 1973-04-17
GB1298756A (en) 1972-12-06
DE7014162U (de) 1970-08-20

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