EP0038320B1 - Cage pour rouleaux entraîneurs dans une installation de coulée - Google Patents

Cage pour rouleaux entraîneurs dans une installation de coulée Download PDF

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Publication number
EP0038320B1
EP0038320B1 EP81890062A EP81890062A EP0038320B1 EP 0038320 B1 EP0038320 B1 EP 0038320B1 EP 81890062 A EP81890062 A EP 81890062A EP 81890062 A EP81890062 A EP 81890062A EP 0038320 B1 EP0038320 B1 EP 0038320B1
Authority
EP
European Patent Office
Prior art keywords
driving
driving roller
drive
roller
stand
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
Application number
EP81890062A
Other languages
German (de)
English (en)
Other versions
EP0038320A2 (fr
EP0038320A3 (en
Inventor
Aktiengesellschaft Voest-Alpine
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
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
Publication of EP0038320A2 publication Critical patent/EP0038320A2/fr
Publication of EP0038320A3 publication Critical patent/EP0038320A3/de
Application granted granted Critical
Publication of EP0038320B1 publication Critical patent/EP0038320B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1287—Rolls; Lubricating, cooling or heating rolls while in use

Definitions

  • the invention relates to a drive roller stand for continuous casting plants with at least two strand guides arranged next to one another, in particular for steel billet casting plants, with at least one separately driven drive roller provided for each of the strands, a first drive roller having a first drive element being designed as a hollow structural unit and one having a second drive element provided drive shaft of a second drive roller arranged coaxially to the first drive roller passes through this hollow structural unit, the drive shaft being connectable to the second drive element as well as to the second drive roller by means of couplings, and furthermore each drive roller being mounted separately on the drive roller frame.
  • a driving roller stand of the type described in the opening paragraph is known from DE-A-1 483 664.
  • an Oldham coupling is arranged between the first drive roller designed as a hollow assembly and the adjacent second drive roller, which Oldham coupling connects the adjacent drive roller with the drive shaft passing through the hollow assembly. Due to this coupling, the individual strands cannot be arranged in close proximity.
  • This known drive roller stand therefore has a wide construction transverse to the longitudinal direction of the strand.
  • a drive roller stand in which a space-saving, closely adjacent arrangement of the two strand guides is realized is known from DE-A-2 702 894.
  • the drive shaft of the second drive roller is rigidly connected to this drive roller and rotatably mounted in the hollow structural unit of the first drive roller.
  • the invention aims to avoid the disadvantages and difficulties described and has as its object to create a drive roller stand of the type described in the introduction, which enables a very closely adjacent arrangement of the strand guides, the strand guidance in the strand pull-out direction being as short as possible and wherein it is also no longer necessary is to remove multiple drive rollers if only one is damaged.
  • a preferred embodiment is characterized in that the couplings are designed as multi-slot connections, the drive shaft advantageously being secured against axial displacement on the drive element assigned to it.
  • a peripheral groove is expediently provided on the drive shaft, into which a diametrically divided disk, which is detachably attached to the second drive element associated with the drive shaft, engages.
  • the drive rollers of a triple continuous caster which are arranged on the underside of three adjacent strand guide tracks, are designated by 1, 2 and 3.
  • Each of the strands 7 drawn out on one of the three adjacent strand guide tracks with the center lines 4, 5, 6 is pulled out (for better transmission of the pull-out forces) by three drive rollers lying one behind the other in the axial direction of the strand.
  • the strand guideways are parallel to one another and are as close as possible to one another.
  • Counter rollers 8, 9, 10 are provided above each of the drive rollers, as shown schematically in FIG. 1.
  • Each of the drive rollers 1 to 3 is mounted on the drive roller stand 11 independently of the other adjacent drive rollers by means of two roller bearings 13 arranged closely on a cylindrical section 12 in contact with the strand.
  • the hollow drive rollers 1 and 3 of the two outer strand guideways are of the same design. They each have a tubular extension 14 projecting beyond the outer roller bearing 13, on which a drive element designed as a chain wheel 16 is mounted by means of a feather key 15 or a wedge.
  • This chain wheel 16 is supported by means of a spacer sleeve 17 against the outer roller bearing 13 and is secured on the extension 14 by means of a ring 18 against axial displacement, so that it forms a hollow structural unit with the respective drive roller 1 or 3.
  • the hollow drive roller 2 of the middle strand guide (with the center line 5) does not protrude beyond its roller bearings 13.
  • an extension 30 having an annular groove 29 is provided, into which an annular groove a split disc 31, which is releasably attached to the outer end face of the hollow sleeve 25, engages.
  • This disk 31 prevents the drive shaft 22 from moving axially.
  • a separate motor 32 is provided for driving each of the chain wheels 16, 16a, which is connected to the respectively assigned chain wheel 16a by means of a drive chain 33 via a drive shaft, at the end of which a chain wheel is also mounted.
  • the arrangement of the drive roller 3 with its sprocket 16, drive roller frame 11 and motor 32 shown in FIG. 2 is not part of the design according to the invention and is only intended to show the possibility of forming a triple continuous caster according to the invention with a double continuous caster.
  • the removal of a drive roller proceeds as follows: If, for example, the middle drive roller 2 is damaged and replaced, the split disk 31 is removed, the drive shaft 22 is axially displaced until it lies outside of this drive roller 2 in the axial direction, after which the bearing cover 34 is loosened Bearing 13, the drive roller 2 with its bearings 13 can be issued. No manipulations need to be carried out on the two adjacent drive rollers 1 and 3 when performing this work. If the middle drive roller is damaged, it is possible to continue the casting operation on the two outer strand guide tracks until the tundish or the ladle from which the tundish is supplied is emptied.
  • the drive roller 1 which is traversed by the drive shaft 22, is to be removed, it is only necessary to also axially move the drive shaft 22 after loosening and removing the split disk 31 until it is hollow from the drive roller and sprocket Assembly of this drive roller 1 is removed, whereupon the hollow assembly can be removed from the scaffold.
  • the middle drive roller 2 (and also the drive roller 3) can be left in the drive roller stand 11 in this case.
  • a driving roller stand 35 is shown for a quadruple continuous caster, in which all four driving rollers 1, 2, 1 ', 2' are arranged with axes aligned with one another, which results in a particularly short overall length of the driving roller stand 35 (in Strand extraction direction) results.
  • FIG. 5 and 6 show an embodiment of a driving roller stand 37 for a six-fold continuous casting installation, which can also be used for a triple continuous casting installation if only the driving rollers 1, 2, 38 or 1 lying on one side of the axis of symmetry 36 ', 2', 38 'omits.
  • Such a triple continuous caster has the advantage that the motors 32 are located on only one side of the continuous caster and yet two of the drive rollers 1, 2 and 1 ', 2' are arranged coaxially, so that the overall length of the drive roller stand in the direction of strand extraction can be kept short .
  • the drive roller 38 (or 38 ') is 37 in this drive roller stand designed the same as the roller 2.
  • a drive roller stand 41 shown in FIGS. 7 and 8
  • eight drive rollers 1, 2, 42, 43, T, 2 ', 42', 43 ' are provided for an eightfold continuous casting installation. If the traction rollers are omitted on one side of the axis of symmetry in FIG. 8, a traction roller structure is obtained for a quadruple continuous casting installation, in which all four drive motors are also located on only one side of the continuous casting installation.
  • four drive rollers 1, 2, 1 ', 2' and 42, 43, 42 ', 43' are aligned with each other, so that, viewed in the direction of strand extraction, the drive roller frame 41 has a very short overall length.
  • the drive rollers 42, 43 (or 42 ', 43'), as can be seen from FIG. 8, are designed in the same way as the drive rollers 1, and can also be removed individually.
  • the invention is not limited to the exemplary embodiments shown in the drawing, but can be modified in various ways.
  • the first drive roller 1 (FIG. 2) of the hollow assembly is overhung on the drive roller frame and a bearing 13 is provided on both sides of the drive unit mounted on the hollow assembly.
  • the center lines 4 and 5 of the strand guideways can be moved closer together by the bearing width of the bearing 13.
  • a further possibility of an expedient embodiment of the drive roller stand can consist in that two drive units are assigned to the second drive roller 2 (FIG. 2), one drive unit 16, as shown in FIG. 2, being provided and a further drive unit symmetrical to the center line 5 the other side of the strand guideways. If the drive roller 1 has to be removed, the drive shaft 22 is displaced until it engages with the multi-spline profile 23 in the multi-spline profile 20 provided on the drive roller 2 and the multi-spline profile 21 engages with a multi-spline profile which is provided on the further drive unit opposite.
  • This drive unit is coupled to its own drive motor. The drive roller 2 can therefore continue to be driven even if the drive roller 1 of the hollow structural unit is damaged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Continuous Casting (AREA)
  • Pretreatment Of Seeds And Plants (AREA)

Claims (5)

1. Cage à rouleaux entraîneurs pour installations de coulée continue à au moins deux guides de ligne ou de barre juxtaposés, en particulier pour installations de coulée de billettes d'acier, comprenant au moins un rouleau entraîneur (1, 2; 1', 2'; 42, 43; 42', 43') commandé séparément pour chacune des lignes, dans laquelle un premier rouleau entraîneur (1, 1'; 42, 42') et un premier élément de commande (16, 16'; 40, 40') forment une unité creuse, dans laquelle un arbre (22, 22') pourvu d'un second élément de commande (16a, 16'a, 40a, 40'a) et servant à la commande d'un second rouleau entraîneur (2, 2'; 43, 43') coaxial au premier traverse cette unité creuse, l'arbre (22, 22') pouvant être relié par des accouplements (20, 21, 23, 24) à la fois au second élément de commande (16, 16'; 40a, 40'a) et au second rouleau entraîneur (2, 2'; 43a, 43'a), et dans laquelle chaque rouleau entraîneur (1, 2; 1', 2'; 42, 43; 42', 43') est individuellement monté rotatif sur la cage (11, 35, 37, 41) à rouleaux entraîneurs, caractérisée en ce que l'arbre (22, 22') peut être désaccouplé à la fois du second rouleau (2, 2', 43, 43') et du second élément de commande (16, 16'; 40a, 40'a) et être accouplé à la fois au second rouleau et au second élément de commande et ce indépendamment du premier rouleau (1, 1'; 42, 42') et l'arbre (22, 22'), conjointement avec les éléments disposés sur lui des accouplements (21, 23) et indépendamment du second rouleau (2, 2'; 43, 43') peut être retiré axialement de l'unité creuse du premier rouleau (1, 1'; 42, 42') restant sur la cage (11,35,37,41), et peut y être introduit axialement.
2. Cage selon la revendication 1, caractérisée en ce que les accouplements sont constitués par des liaisons à multiples cannelures (20, 21, 23, 34).
3. Cage selon la revendication 1 ou 2, caractérisée en ce que l'arbre (22) est empêché de se déplacer axialement à l'élément de commande (16a) conjugué à lui.
4. Cage selon la revendication 3, caractérisée en ce que l'arbre (22) présente une gorge périphérique (29) dans laquelle pénètre un disque (31) qui est divisé diamétralement et est fixé amovible au second élément de commande (16) conjugué à l'arbre.
5. Cage selon les revendications 1 à 4, caractérisée en ce que les rouleaux entraîneurs (1, 2; 1', 2'; 42, 43, 42', 43') sont montés sur la cage à rouleaux entraîneurs (11, 35, 37, 41) par des paliers (13) identiques entre eux.
EP81890062A 1980-04-15 1981-04-09 Cage pour rouleaux entraîneurs dans une installation de coulée Expired EP0038320B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2026/80 1980-04-15
AT0202680A AT365105B (de) 1980-04-15 1980-04-15 Treibrollengeruest fuer stranggiessanlagen

Publications (3)

Publication Number Publication Date
EP0038320A2 EP0038320A2 (fr) 1981-10-21
EP0038320A3 EP0038320A3 (en) 1981-12-09
EP0038320B1 true EP0038320B1 (fr) 1984-05-16

Family

ID=3526198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81890062A Expired EP0038320B1 (fr) 1980-04-15 1981-04-09 Cage pour rouleaux entraîneurs dans une installation de coulée

Country Status (7)

Country Link
US (1) US4411304A (fr)
EP (1) EP0038320B1 (fr)
JP (1) JPS56151150A (fr)
AT (1) AT365105B (fr)
CA (1) CA1174828A (fr)
DE (1) DE3163584D1 (fr)
ES (1) ES501079A0 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239157A (en) * 1989-12-19 1991-06-26 Reekie Mfg Ltd Roller separating tables for root crop harvesters
US5928122A (en) * 1997-10-20 1999-07-27 Sms Concast Division Of Sms Schloemann-Siemag Inc. Split roll for continuous casting
MX2011000634A (es) * 2010-01-18 2011-11-04 Basf Se Conjunto de guia de hebra y metodo para controlar un flujo de termoplastico fundido.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT233189B (de) * 1961-11-24 1964-04-25 Mannesmann Ag Strangtransportvorrichtung in Mehrfachstranggießanlagen
CH437665A (de) * 1964-04-03 1967-06-15 Colombo Enzo Treibrollenwerk für Stranggiessanlagen, insbesondere Mehrstranggiessanlagen
DE1483558A1 (de) * 1965-09-25 1969-10-02 Demag Ag Transport- und Richtmaschine fuer eine Metallstranggiessanlage
US3965975A (en) * 1974-08-21 1976-06-29 Stratford Engineering Corporation Baffling arrangements for contactors
DE2511913A1 (de) * 1975-03-19 1976-09-30 Sack Gmbh Maschf Stranggiessanlage fuer brammen
JPS5290421A (en) * 1976-01-27 1977-07-29 Ishikawajima Harima Heavy Ind Pinch roll apparatus in poly strand continuous casting equipment
CH603281A5 (fr) * 1976-05-19 1978-08-15 Concast Ag

Also Published As

Publication number Publication date
AT365105B (de) 1981-12-10
DE3163584D1 (en) 1984-06-20
ES8205598A1 (es) 1982-06-16
EP0038320A2 (fr) 1981-10-21
ES501079A0 (es) 1982-06-16
JPS56151150A (en) 1981-11-24
US4411304A (en) 1983-10-25
CA1174828A (fr) 1984-09-25
EP0038320A3 (en) 1981-12-09
ATA202680A (de) 1981-05-15

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