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EP0879106A1 - Gage a rouleaux d'appui pour installation de coulee en continu de metal, en particulier d'acier - Google Patents

Gage a rouleaux d'appui pour installation de coulee en continu de metal, en particulier d'acier

Info

Publication number
EP0879106A1
EP0879106A1 EP97917218A EP97917218A EP0879106A1 EP 0879106 A1 EP0879106 A1 EP 0879106A1 EP 97917218 A EP97917218 A EP 97917218A EP 97917218 A EP97917218 A EP 97917218A EP 0879106 A1 EP0879106 A1 EP 0879106A1
Authority
EP
European Patent Office
Prior art keywords
roller
frame
support
bearing housing
pivot bearing
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
EP97917218A
Other languages
German (de)
English (en)
Other versions
EP0879106B1 (fr
Inventor
Hans-Werner Gohres
Franz-Josef Divjak
Rainer Lenk
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0879106A1 publication Critical patent/EP0879106A1/fr
Application granted granted Critical
Publication of EP0879106B1 publication Critical patent/EP0879106B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Definitions

  • Support roller stand for metal, especially steel continuous casting plants
  • the invention relates to a support roller frame for metal, in particular continuous steel casting systems according to the preamble of the main claim.
  • a generic support roller frame is known from DE-AS 19 65 115. This support roller structure is divided into straight or curved segments, with several rollers being combined on a roller carrier. Two roller carriers each for parallel strand sides are attached to stands running on both sides next to the cross section of the casting strand. At least one of the roller carriers can be adjusted against the other in guides of the stand by means of hydraulic piston engines provided in pairs. Both roller carriers can be expanded independently of one another, for which purpose one roller carrier is clamped against stops of the stands perpendicular to the direction of the strand, whereas the other adjustable roller carrier is supported by means of hydraulic piston engines provided on a releasable traverse connecting the two stands.
  • This known support roller frame is very complex in construction, takes up a lot of space in the plane perpendicular to the direction of the strand and is particularly unsuitable for the frame immediately downstream of the mold - also called a zero frame.
  • the object of the invention is to provide a support roller stand for metal, in particular continuous steel casting plants, which is simple in construction, takes up little space, is particularly suitable for the so-called zero stand and is long
  • REPLACEMENT BLA ⁇ (RULE 26) Has duration of use. This scaffold should also be usable for a dry or wet driving style.
  • Frame elements fit one side part each and is connected with expansion screws.
  • two carriers of T-shaped cross section are arranged at a distance from the roll width.
  • the respective pivot bearing housing for the roller bearing is detachably fastened on these supports, which extend in the direction of the strand.
  • the support roller stands are particularly stressed by the casting powder emerging from the mold and by the scale flaking off the strand shell in connection with the high temperatures.
  • the burden of a corrosion attack is particularly high when the casting powder and the scale combine with spray water applied in the primary cooling area.
  • care has been taken in the proposed construction that the inner surfaces of the support roller frame are as smooth and flat as possible, so that no dirt nests can form and, on the other hand, a corrosion-resistant material, for example a stainless steel, is used for the entire construction.
  • the flatness and smoothness of the inner surfaces is achieved by avoiding any kind of step or terrace heels and care is taken that there are no fasteners on the inner surface.
  • the proposed construction has the following advantages over the known prior art.
  • the T-shaped carrier has a passage so that the cooling medium can be accessed from the frame part to the roller.
  • the coupling of the cooling medium guide from the fixed swivel bearing housing to the rotating roller or vice versa takes place via a known rotary insert (DE 42 07 042 B1).
  • the advantage of this known rotary introduction is the closure of the bearing block by a cover having a cooling channel. The movement of the roller in relation to the cooling channel is compensated for by an elastic compensator.
  • the advantage lies in the dirt-repellent closure of the storage room, since the roller bearings in particular are very sensitive to the ingress of dirt.
  • a lubrication device is integrated into the cover-like closure, which is connected to the outer seal.
  • the aforementioned releasable connection of the pivot bearing housing to the carrier can be used to change the distance between the opposing rollers within a certain range of variation. This distance variation can also be used for curved support roller segments. Different distances to the frame part can thus be set in a simple manner, so that the sequence of the tangents in the point of contact of the strand of the rollers results in an arcuate contour with the previously defined arc radius of, for example, 10 m.
  • a bushing is arranged according to the invention in the foot region of the pivot bearing housing, which extends into the passage of the T-shaped carrier.
  • the bushing is guided in a sealed manner in this passage, so that the spacing can be varied by placing sheet metal parts of different thicknesses without any other structural change.
  • the sheet metal pieces have a corresponding opening so that the aforementioned socket can be inserted.
  • FIG. 1 shows a section A-B in Figure 2 through an inventive segment of a support roller frame
  • FIG. 2 shows a section C-D in FIG. 1
  • FIG. 3 shows a view in the direction X in FIG. 2
  • Figure 5a is an enlarged view of the pivot bearing of the rollers
  • Figure 5b is a side view of the pivot bearing
  • Figure 5c shows a section E-F in Fig. 5b
  • FIG. 6 is a schematic diagram for the cooling water circuit
  • FIG. 1 shows a section AB in FIG. 2 through a segment of a support roller stand according to the invention.
  • a curved segment is for a continuous caster shown.
  • This segment essentially consists of an upper and a lower frame part 1, 2, which, as can be clearly seen here, are designed as a sheet metal welded construction.
  • a total of nine roller pairs 3, 3 '- 11, 11' are combined in one segment.
  • Frame part can be arranged, on the one hand, to ensure that the scale deposited in the segment can fall out and, on the other hand, to be able to open pipes for a desired spray cooling.
  • Figure 2 shows a section C-D in Figure 1.
  • the side parts 15, 16 are likewise designed as sheet-metal welded constructions and are detachably connected to the upper and lower frame parts 1, 2 by means of expansion screws 17, 17 ", 18, 18 '.
  • the side parts 15, 16 can be fitted, the
  • Frame parts 1, 2 each have a projecting extension 19, 19 ', 20, 20' on both sides. This results overall in a torsionally rigid box-like segment which has smooth and flat inner surfaces 21, 22. These smooth and flat inner surfaces 21, 22 are of essential importance for this construction since the formation of dirt nests is thereby avoided. Care was taken to ensure that there were none
  • Step or terrace heels comes and all connecting elements are outside the interior.
  • the only projecting element is a guide plate 23, 24 arranged on the respective side element 15, 16 in order to be able to move the cold start strand in a guided manner.
  • two outwardly extending pins 26, 26 ', 27, 27' are arranged on the side elements 15, 16. The details of the storage of the rollers 7, 7 'are explained in more detail in FIGS. 5a to c.
  • Figure 3 shows a view in the direction X in Fig. 2.
  • the modular structure of the sheet metal construction of the segment can be seen.
  • the structure is as symmetrical as possible and on the other hand that the connecting elements z.
  • the expansion screws are as identical as possible. Both of these points reduce the procurement costs and reduce the stock of spare parts.
  • FIG. 4 shows in the same view as FIG. 3 a standard version of a side part 15 '.
  • this side part 15 ' is not adapted for a special arch segment, but is particularly suitable as a standard part for a segment of a vertical casting plant.
  • the illustration clarifies the symmetry according to the invention of the frame parts and the figure even more than the embodiment according to FIG.
  • 5a to 5c show the details of the mounting of the rollers, for example the left side of the lower roller 7 "in FIG. 2.
  • a T-shaped carrier which extends in the transport direction of the strand (see FIG. 1 ), here for example by welding.
  • Only a special section 30 'of the T-shaped support is considered in this figure.
  • the roller pairs 6.6 "-8.8' are arranged on this section 30 '.
  • the pivot bearing housing 31 is detachably arranged on this carrier section 30 '. Between the top of the support portion 30 'and the bottom of the
  • a bearing plate 32 can be arranged in the rotary bearing housing 31. With the aid of this shim 32, on the one hand the distance of the respective pair of rollers 7, 7 'to one another and on the other hand the distance to the carrier section 30' can be adjusted with a view to adapting to the predetermined arc diameter.
  • the roller bearing 33 is arranged in the rotary bearing housing 31. Since part of the heat of the roller 7 'is also transferred to the pivot bearing housing 31, the pivot bearing housing 31 must be cooled in order to protect the roller bearing 33.
  • an opening 34 is provided in the inner plate of the frame part 2, which is connected to a channel 35 arranged in the carrier section 30 'and the pivot bearing housing 31.
  • the cooling water is supplied to the individual channels 35 of the respective storage of the rollers via a recess 36 in the carrier section 30 ".
  • This channel 36 extends continuously over the individual sections 12 ', 30', 37 'of the T-shaped carrier A supply of the cooling water is ensured irrespective of the thickness of the washer 32, a bush 38 is arranged in a cylindrical recess in the carrier section 30 'and the rotary bearing housing 31.
  • the sealing takes place via seals 39, 39 'arranged on the outer jacket of the bush 38.
  • the channel 35 has a lateral kink.
  • the cooling process is now designed so that the cooling water from the channel 35 around the pivot bearing 31 around an annular gap 40, in order to then be guided via a further channel 41 to a radially extending bore 42. From here it flows through the rotating union 43 into the roller 7 'in order to cool it from the inside. The heated cooling water then emerges again at the other end of the roller 7 ′ and is discharged via the frame element 2 in the same way as previously explained.
  • a schematic diagram of the entire cooling water circuit can be seen in FIG. 6. The details of the representation of the rotary union 43 are not discussed in detail here, since this principle is known.
  • the lubrication according to the invention which is arranged in the form of a grease cup 44 in the cover 45 flanged to the pivot bearing housing 31.
  • the outflow side of the grease cup 44 is connected to the outer seal 47 of the bearing block 31 via a channel 46 (FIG. 5b).
  • a channel 46 (FIG. 5b).
  • the cooling water enters the frame element 2 from a connection (not shown here).
  • the cooling water reaches the bearing 51 via the path explained in FIGS. 5a to c and then flows through the roller 7 'from the inside, so that it is cooled accordingly .
  • the cooling water emerges again via the bearing 52 arranged on the left.
  • the cooling water then flows in a meandering manner through the frame part 2 and emerges from the frame part again at the opposite end 53.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)

Abstract

L'invention concerne une cage à rouleaux d'appui pour installations de coulée en continu de métal, en particulier d'acier. L'invention se caractérise en ce que les supports de rouleaux se présentent sous la forme d'éléments de châssis (1, 2), constitués de tôles soudées, et que les deux éléments de châssis (1, 2) présentent un prolongement (19, 19', 20, 20') faisant saillie à chaque extrémité. Un élément latéral (15, 16) constitué d'une tôle soudée est emboîté dans chaque espace compris entre lesdits prolongements et relié, de façon démontable, aux deux éléments de châssis (1, 2) par l'intermédiaire d'un boulon à tige élastique. Le segment à rouleaux d'appui ainsi formé, qui est rigide et résistant à la tension, présente des surfaces intérieures (21, 22) lisses et plates, et les deux éléments de châssis (1, 2) sont pourvus de deux supports (12, 12', 30, 30') s'étendant chacun à une certaine distance de la largeur du rouleau, en forme de T, dans le sens de coulée, supports auxquels le boîtier de coussinet de pivotement (31) correspondant est fixé de façon démontable. Des éléments de châssis (1, 2) et les éléments latéraux (15, 16) constitués de tôles soudées sont composés, de façon modulaire, de segments individuels similaires autant que possible, et les éléments de liaison sont identiques dans la mesure du possible. Une matière résistant à la corrosion et utilisée pour toutes les pièces du segment à rouleaux d'appui, y compris les éléments de liaison.
EP97917218A 1996-02-08 1997-01-30 Gage a rouleaux d'appui pour installation de coulee en continu de metal, en particulier d'acier Expired - Lifetime EP0879106B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19606308 1996-02-08
DE19606308A DE19606308C1 (de) 1996-02-08 1996-02-08 Stützrollengerüst für Metall-, insbesondere Stahlstranggießanlagen
PCT/DE1997/000238 WO1997028916A1 (fr) 1996-02-08 1997-01-30 Gage a rouleaux d'appui pour installation de coulee en continu de metal, en particulier d'acier

Publications (2)

Publication Number Publication Date
EP0879106A1 true EP0879106A1 (fr) 1998-11-25
EP0879106B1 EP0879106B1 (fr) 1999-12-22

Family

ID=7785921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97917218A Expired - Lifetime EP0879106B1 (fr) 1996-02-08 1997-01-30 Gage a rouleaux d'appui pour installation de coulee en continu de metal, en particulier d'acier

Country Status (3)

Country Link
EP (1) EP0879106B1 (fr)
DE (2) DE19606308C1 (fr)
WO (1) WO1997028916A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19739694C1 (de) * 1997-09-04 1998-12-10 Mannesmann Ag Stützrollengerüst für Metall-, insbesondere Stahlstranggießanlagen
DE10044064B4 (de) * 2000-08-31 2004-02-05 Mannesmannröhren-Werke Ag Verfahren und Vorrichtung zur Adjustierung der Maulweite eines Segmentes eines Stützrollengerüstes
DE102008009136A1 (de) 2008-02-14 2009-10-15 Sms Siemag Aktiengesellschaft Strangführung, insbesondere für eine Stahlbrammen-Stranggießanlage
CN110842167A (zh) * 2019-12-19 2020-02-28 中国重型机械研究院股份公司 一种板坯扇形段辊子轴承座结构及其使用方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1154587A (en) * 1965-09-14 1969-06-11 United Steel Companies Ltd Machines for Continuously Casting Metals.
DE1965115C3 (de) * 1969-12-27 1975-06-12 Demag Ag, 4100 Duisburg Stützrollengerüst für Metall-, insbesondere Stahlstranggießanlagen
AT335650B (de) * 1975-05-13 1977-03-25 Voest Ag Fur stranggiessanlagen bestimmte strangfuhrung
FR2613003B1 (fr) * 1987-03-25 1990-11-30 Fives Cail Babcock Dispositif de montage pour rouleau comprenant un palier refroidi
DE4207042C1 (en) * 1992-03-02 1993-09-16 Mannesmann Ag, 40213 Duesseldorf, De Coolant coupling for roll device - with good sealant properties provided by elastic socket feeding coolant into roll bore
DE19511113A1 (de) * 1995-03-25 1996-09-26 Schloemann Siemag Ag Strangführung einer Stranggießanlage für Dünnbrammen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9728916A1 *

Also Published As

Publication number Publication date
EP0879106B1 (fr) 1999-12-22
DE59700884D1 (de) 2000-01-27
DE19606308C1 (de) 1997-04-10
WO1997028916A1 (fr) 1997-08-14

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