US3650139A - Rolling stand, particularly for the shaping of a cast bar immediately upon leaving a continuous casting plant - Google Patents

Rolling stand, particularly for the shaping of a cast bar immediately upon leaving a continuous casting plant Download PDF

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Publication number
US3650139A
US3650139A US844337A US3650139DA US3650139A US 3650139 A US3650139 A US 3650139A US 844337 A US844337 A US 844337A US 3650139D A US3650139D A US 3650139DA US 3650139 A US3650139 A US 3650139A
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US
United States
Prior art keywords
rolls
base frame
transmission gears
rolling stand
drive
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
US844337A
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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 US3650139A publication Critical patent/US3650139A/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
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers
    • 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
    • B21B13/22—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
    • 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

  • ABSTRACT A rolling stand, particularly intended for shaping a cast bar immediately upon leaving a continuous casting plant, is described, comprising two horizontal roll supports having their ends connected by a fixed crossmember on one side and a releasable cap on the other side to form a cage wherein a pair of vertical rolls mounted in inserts is arranged to be horizontally displaceable for adjustment of the roll gap.
  • the entire rolling stand including the rolls is detachably mounted on a base frame to be vertically removable therefrom, said base frame containing two transmission gears releasably connected for rotation with the roll shafts and enclosed in suspended casings which are moveable together with said rolls;
  • the drive is located below floor and comprises driving spur wheels which are larger than the meshing drive-off spur wheels of the transmission gears by at least half the adjustment range of the rolls to maintain a stresstransrnitting engagement of the gearing irrespective of any shifts occuring on roll gap adjustment.
  • the present invention relates to a rolling stand, particularly for the shaping of a cast bar immediately upon leaving a continuous casting plant, with two roll supports in which a vertical pair of rolls with its inserts is arranged to be horizontally displaceable, the roll supports having a rigid cross-connection on one side and a detachable cap connection on the opposite side.
  • the problem with continuous casting plants and in particular with multi-bar continuous casting plants is a space-saving arrangement of the rolling stands used for further shaping of the castings subsequent to the casting process.
  • 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 molds 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 the feed speed of the casting in the rolling stands is much smaller than with conventional rolling trains, resulting in an undesirably high loss in 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. As rolling stands following continuous casting plants cannot work independently from the casting and melting operations, any roll changing or exchange of rolling stands, respectively, must be carried out as quickly as possible in cases of a change of the rolling program or repairs so that the metallurgical operations will remain unaffected.
  • this problem is solved by detachably mounting the entire rolling stand inclusive of the rolls on a base frame so that it is vertically removable therefrom, two gears enclosed in a gear casing being suspended side-by-side within the base frame and the roll shafts engaging with said gears.
  • each gear casing is detachable connected with a roll shaft, the gear casings being horizontally displaceable together with the rolls to allow the adjustment of the roll gap.
  • the roll shafts are preferably designed as spline shafts or as two-edge pieces and the bevel gears detachably arranged thereupon have adequately shaped bores.
  • the drive of the rolling stand according to the invention is located below floor in a base pit.
  • the drive is preferably suspended from the base frame, the driving gear being connected with the gears located inside the gear casings by spur wheels which are wider than the drive-off spur wheels inside the gear casings by at least half the adjustment stroke of the rolls, so that their displacement does not result in the disengagement of the spur wheels.
  • FIG. 1 is a front view of a rolling stand with a sectional view of the suspended driving gears
  • FIG. 2 is a side view
  • FIG. 3 a plan view of the rolling stand.
  • Rolls 1, 2 are mounted in inserts 3, 4 being horizontally guided in U-shaped roll supports 5, 6. At one side the roll supports 5, 6 are rigidly connected by a cross connection 7 and on the opposite side by a detachable cap connection 8 to form a cage-like unit.
  • Numerals 9, 10, l1, l2 designate hydraulically operated cylinders for the adjustment of the rolls 1, 2.
  • the roll shafts l5, 16 designed either as spline shafts or twoedge pieces can be connected with the bevel gears 20, 21 located in the gear casings I7, 18 and having adequate bores.
  • the gear casings 17, 18 are suspended in a base frame 28 and therein horizontally displaceable along the guides 34, 35.
  • the base frame 28 consists of the two longitudinal supports 29, 30 held together by two detachable cross-connections 31, 32 and a fixed cross-connection 33.
  • the base frame 28 is secured and fixed to the base 36 by centering bolts and anchor screws.
  • the rolling stand A is fixed to the base frame 28 by several centering devices 43, 44, 45, 46 and secured by hydraulically operated clamping devices 47, 48, 49, 50, 51, 52 fixed to the base frame 28 or its cross-connections 31, 32, respectively, and acting from below on the roll support 6, said connection being quickly and easily detachable.
  • the clamping devices consist of the hydraulically operated cylinders 47, 48, the levers 49, 50, and the clamps 51, 52.
  • the gears arranged displaceably in the base frame 28 consist of the bevel gears 20, 21, which can be connected with the roll shafts 15, 16 and are in engagement with the bevel gears 22, 23.
  • the bevel gears 22, 23 together with the spur wheels 24, 25 are each fixed to a common shaft 26 and 27.
  • the spur wheels 24, 25 are in engagement with the spur wheels 41, 42 of the drive 38, the spur wheels 41, 42 being wider by at least half the adjustment stroke of the rolls 1, 2.
  • the drive 38 with the driving gear 39 and the motor 40 is located in a base pit 37 or-as shown in FIGS. 1 and 2suspended from the crossconnection 33 of the base frame 28.
  • the torques required for shaping the casting are transmitted by the drive 38 via the spur wheels 41, 42 to the spur wheels 24, 25, which due to the greater width of the spur wheels 41, 42 cannot become disengaged. From the spur wheels 24, 25 the torques are transmitted to the bevel gears 22, 20 and 23, 21, respectively, and to the rolls 1 and 2, respectively.
  • the removal of the rolling stand A is effected upon opening the clamping devices 47, 48, 49, 50, 51, 52 by vertical lifting, e.g., by means of a crane.
  • the roll shafts 15, 16 are accordingly disengaged from the bevel gears 20, 21.
  • the hydraulically operated cylinders 9, 10, ll, 12, and the lubricating spots of the rolling stand A are coupled to their pertinent connecting lines by means of rapid-action connections, not shown. Said connections have to be released before removal.
  • a rolling mill assembly for shaping rolling stock including continuously cast bars comprising,
  • a drive in communication with the base frame and adapted to drive the transmission gears
  • a rolling mill assembly for shaping rolling stock including continuously cast bars comprising,
  • a drive in communication with the base frame and having a driving gear with a pair of driving spur wheels
  • the driving spur wheels being wider than the drive-off spur shafts in releasable rigid engagement with the transmis- Wheels y at least One-half f the maximum h izon l displacement range of the rolls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
US844337A 1969-04-23 1969-07-24 Rolling stand, particularly for the shaping of a cast bar immediately upon leaving a continuous casting plant Expired - Lifetime US3650139A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT391169A AT296198B (de) 1969-04-23 1969-04-23 Auf einem Fundamentrahmen lösbar befestigtes und in vertikaler Richtung abhebbares Walzgerüst, insbesondere für die Verformung eines direkt aus einer Stranggußanlage auslaufenden Gußstranges

Publications (1)

Publication Number Publication Date
US3650139A true US3650139A (en) 1972-03-21

Family

ID=3557107

Family Applications (1)

Application Number Title Priority Date Filing Date
US844337A Expired - Lifetime US3650139A (en) 1969-04-23 1969-07-24 Rolling stand, particularly for the shaping of a cast bar immediately upon leaving a continuous casting plant

Country Status (12)

Country Link
US (1) US3650139A (cs)
AT (1) AT296198B (cs)
BE (1) BE749356A (cs)
BR (1) BR7018233D0 (cs)
CA (1) CA931394A (cs)
CH (1) CH504908A (cs)
CS (1) CS153076B2 (cs)
DE (2) DE2018384A1 (cs)
ES (1) ES378394A1 (cs)
FR (1) FR2046274A5 (cs)
GB (1) GB1298592A (cs)
SE (1) SE372435B (cs)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6526795B1 (en) * 2000-05-09 2003-03-04 Mario Fabris Expanding spline drive for high torque
CN105478489A (zh) * 2015-12-31 2016-04-13 中钢集团西安重机有限公司 一种可浮动调节的接轴自平衡托架装置及调节方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10052734A1 (de) * 2000-10-25 2002-05-02 Sms Demag Ag Vorrichtung zum Antrieb eines Paares von Vertikalwalzen oder deren Tragwellen, die in Lagereinbaustücken lagern

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2311075A (en) * 1940-03-05 1943-02-16 Morgan Construction Co Rolling mill
US2513058A (en) * 1945-04-09 1950-06-27 Morgan Construction Co Vertical rolling mill

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2311075A (en) * 1940-03-05 1943-02-16 Morgan Construction Co Rolling mill
US2513058A (en) * 1945-04-09 1950-06-27 Morgan Construction Co Vertical rolling mill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6526795B1 (en) * 2000-05-09 2003-03-04 Mario Fabris Expanding spline drive for high torque
CN105478489A (zh) * 2015-12-31 2016-04-13 中钢集团西安重机有限公司 一种可浮动调节的接轴自平衡托架装置及调节方法

Also Published As

Publication number Publication date
DE2018384A1 (de) 1970-11-19
SE372435B (cs) 1974-12-23
BE749356A (fr) 1970-10-01
ES378394A1 (es) 1973-02-01
AT296198B (de) 1972-02-10
GB1298592A (en) 1972-12-06
BR7018233D0 (pt) 1973-05-24
DE7014070U (de) 1970-08-20
CS153076B2 (cs) 1974-02-22
FR2046274A5 (cs) 1971-03-05
CA931394A (en) 1973-08-07
CH504908A (de) 1971-03-31

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