EP0076248A1 - Courbe de soutien et de guidage pour des barres coulées - Google Patents

Courbe de soutien et de guidage pour des barres coulées Download PDF

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Publication number
EP0076248A1
EP0076248A1 EP82890117A EP82890117A EP0076248A1 EP 0076248 A1 EP0076248 A1 EP 0076248A1 EP 82890117 A EP82890117 A EP 82890117A EP 82890117 A EP82890117 A EP 82890117A EP 0076248 A1 EP0076248 A1 EP 0076248A1
Authority
EP
European Patent Office
Prior art keywords
support
longitudinal
members
guide
arch
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
EP82890117A
Other languages
German (de)
English (en)
Other versions
EP0076248B1 (fr
Inventor
Aktiengesellschaf 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 EP0076248A1 publication Critical patent/EP0076248A1/fr
Application granted granted Critical
Publication of EP0076248B1 publication Critical patent/EP0076248B1/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
    • B22D11/1282—Vertical casting and curving the cast stock to the horizontal
    • 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
    • B22D11/1285—Segment changing devices for supporting or guiding frames

Definitions

  • the invention relates to a support and guide arch for cast strands, in particular for slab cast strands, with the strand on opposite sides supporting roller conveyors, the rollers of which are mounted on integral, longitudinal arch beams which are continuous over the entire length of the guide arch, being along the arch longitudinal.
  • Carriers are arranged at intervals from each other, the cross-members that cross behind each other and are arranged opposite one another in pairs, which are connected by tie rods.
  • a support and guide arch of this type is known from AT-PS 343.303, AT-PS 290.750 and AT-PS 343.831.
  • Such a one-piece supporting and guiding arch has the advantage over a guiding arch composed of a plurality of segments arranged one behind the other, the "segments of which are mounted individually on the foundation, that the transitions which result from segment to segment and which must be exactly aligned with one another are avoided Due to the use of continuous, one-piece longitudinal rails, the rollers lie on predetermined curved paths without discontinuities.
  • the invention aims at avoiding these difficulties and has as its object to provide a support and guide arch of the type described in the introduction which, while retaining the advantages of the known support and guide arches equipped with continuous arch longitudinal members, permits a roll change in which only a relatively small amount Weights and small components have to be manipulated, as is the case with support and guide arches composed of segments arranged one behind the other.
  • the advantages of the guide arches composed of segments arranged one behind the other should therefore be combined in one construction with the advantages of the guide arches equipped with continuous longitudinal arches.
  • the arrangement of the two longitudinal arch members to the side of the ends of the rollers makes it possible to move the support segments between the longitudinal arch members and along them (for the purpose of removal and installation).
  • a free space extending over the entire length of the support and guide arch is provided between the arch side members, the support segments and the cross members, through which the support segments together with the built-in rollers can be moved along the side members after detaching from the side members, which means that
  • the advantage is that the support segments are not removed in sequence, but in any order from the support and guide arch or can be installed in the support and guide arch.
  • a single middle segment can also be removed and installed without the other segments having to be detached from the support and guide bend.
  • the support segments are expediently detachably fastened to the longitudinal side members of the arch by means of quick-release fasteners, the quick-release fastener advantageously being designed as a bolt which can be drawn into the support segments, preferably hydraulically retractable.
  • the support segments are expediently formed by roller mounts or longitudinal supports carrying roller bearings, which are connected by preferably hollow tubular supports extending parallel to the rollers, the retractable bolts being slidably mounted in the hollow supports.
  • the quick-release fastener is designed as a rotatable slotted bushing inserted into the longitudinal side members of the arch and into this bushing insertable through its slot, fastening bolts fastened to the support segment.
  • a gripping carriage guided along the longitudinal members of the arch can be moved in the open spaces on the inside and outside of the arch, on which gripping devices for gripping the support segments are provided.
  • a transport carriage accommodating the gripping carriage is guided.
  • the gripping carriage expediently has swivel arms which can be brought into and out of engagement with a support segment, the swivel arms advantageously being designed as angle levers.
  • guides for the support segments are provided on the arch side members.
  • guide rails are provided for guiding the gripping carriage along the sheet longitudinal members.
  • FIG. 1 shows a schematically represented section, which is made in the plane of the arch through the support and guide arch.
  • FIG. 2 illustrates a section along the line II-II of FIG. 1.
  • FIGS. 3 to 5 show a further embodiment in an illustration analogous to FIGS. 1 and 2, FIG. 3 being a sectional illustration of a section made in two planes , etc. according to lines III-III and III'-III 'of Figure 4; 5 is a side view.
  • a cast strand 1 is pulled out of a mold, not shown, and bent in a bending zone, not shown, arranged below the mold. Subsequently, the strand between an inner roller conveyor 2 and an outer roller conveyor 3 of a support and Guide arc from almost the vertical to almost the horizontal. In the direction of pulling out the strand, a guide zone is arranged downstream of the guide arch, in which the strand is straightened again.
  • Each of the roller tracks 2, 3 has two sheet longitudinal members 4, 5 which are continuous over the entire length of the support and guide sheet and are each arranged at a distance 6 which is greater than the length 7 of the rollers and to the side of the roller ends 8.
  • the cross members 9, 10, which lie parallel to one another and are arranged behind one another are arranged at intervals from one another, with two opposing cross members being tensioned against one another by means of tie rods 11 for absorbing the ferrostatic forces.
  • the tie rods 11 also keep the roller conveyors 2 and 3 at a certain distance which corresponds to the thickness 12 of the strand 1 to be cast.
  • the latticework or truss formed from the cross members and longitudinal members of the arch is at least two points along its longitudinal extent on the foundation, etc. either via a floating and a fixed bearing or a fixed bearing and several floating bearings (for example according to AT-PS 343.831), which is not shown in the drawing.
  • the sheet longitudinal members 4 of the inner roller conveyor 2 are movably mounted on the cross members 9 by means of sliding blocks 13 in order to enable the setting of different strand thicknesses.
  • the cross members 9 of the inner roller conveyor 2 are displaced along the tie rods 11 and the sheet longitudinal members are elastically deformed, as described and shown in AT-PS 343,303, for example.
  • Each of the support segments 14 carries, via roller mounts 15, a plurality of rollers 16 or 17 assigned to a roller conveyor.
  • Each support segment is formed from longitudinal members 18 carrying the roller mounts 15, the rollers being supported several times over their longitudinal extent. These longitudinal beams 18 are penetrated by beams 19 extending parallel to the rollers.
  • These supports are tubular and have bolts 21 inserted into their cavity 20 at their ends. These bolts are displaceable in the direction of the longitudinal axis of the supports 19 by means of hydraulic cylinders 22, so that they can be brought from a position projecting from the supports, as illustrated in FIG.
  • the support segments 14 are quickly and easily detachably connected to the longitudinal members 4, 5, the ends of the bolts 21 being insertable into bores 23 of the longitudinal members or being removable from the bores.
  • a free space 24 or 25 is provided, which extends over the entire length of the support and guide arch, through which the support segments 14 together with installed rollers after loosening the longitudinal members 4 and 5 are movable along the longitudinal members.
  • a support segment with dash-dotted lines is shown, which is shifted into the free space 24.
  • the direction of removal is illustrated by arrow 26.
  • guide devices and traction means are provided, for example rails and cable or chain hoists.
  • the expansion of an outer support segment along the Room 25 is also illustrated in FIGS. 1 and 2 with dash-dotted lines.
  • Support segments lying opposite one another are not in direct connection with one another, so that the arrangement of the support segments can be chosen freely, i.e. the support segments do not have to be exactly opposite one another, but the outer support segments can be arranged offset to the inner support segments in the longitudinal direction of the support and guide arch.
  • the attachment of the support segments 14 to the arch side members 4 is modified here; it consists of mounting bolts 27 inserted into the support segments, which project laterally from the support segments.
  • Rotatable bushings 28, which receive the mounting bolts 27, are inserted into the sheet longitudinal members 4 and 5.
  • These bushings 28 each have a slot 29 through which the mounting bolts with a flattened end piece 30 come out. can kick.
  • the bushings can be rotated from the holding position shown on the left in FIG. 3 to the expansion position shown on the right in FIG. 3 with the aid of a pressure medium cylinder 31 mounted on the side of the sheet longitudinal members.
  • the sockets used for a support segment 14 for holding are connected to one another by means of levers 32, 33 and a linkage 34, so that they can be actuated synchronously with the aid of the pressure medium cylinder 31.
  • a gripping carriage 35 is provided in the embodiment shown in FIGS. 3 and 4, which in the free ram 24 formed by the longitudinal longitudinal members 4 and 5, the support segments 14 and the cross members 9 and 10, 25 can be moved along guide rails 36.
  • the griffin rolls in these guide rails dare with laterally projecting rollers, not shown.
  • the gripping carriage 35 has two side cheeks 37 which are directed parallel to the sheet longitudinal members 4 and 5 and come to lie just next to them and which are connected to one another by cross struts 38 to form a cage.
  • two angle levers 39 are pivoted about an axis 40 parallel to the roller axes.
  • a pressure medium cylinder 41 is used to carry out the pivoting movement.
  • each of these levers can be hooked into a recess 43 arranged in the plane of symmetry of a support segment 14. This is done by actuating a pressure medium cylinder 44, which connects the two angle levers 39 to one another.
  • This pressure medium cylinder 44 allows the two angle levers to be pulled towards one another in the direction of the pivot axis 40 or to be spread apart, as a result of which an extension 45 arranged on the angle levers 39 at the ends 42 thereof can be brought into and out of engagement with the recess 43 of the support segment.
  • the angle levers 39 preferably spring against one another and are spread apart by the pressure medium cylinder 44 with elastic deformation. In Fig. 4, the position is drawn in which a support segment is clamped between the angle levers, that is, laterally clutched by these and held by the extensions of the angle levers.
  • the support segments 14 are provided guides 46 which align the support segments 14 when inserted into the system, so that the newly inserted support segment with its mounting bolts 27 can be inserted exactly through the slots 29 into the sockets 28.
  • the gripping carriage 35 can be moved along the guide rails 36 by means of a cable or chain hoist (not shown in more detail).
  • dash-dotted lines are used to draw a support segment 14, which in the free space 24 formed by the longitudinal rails, the support segments and the cross-members, also with the aid of the dash-dot lines set angle lever 39 of the gripping carriage was brought.
  • the support segment is in this position, it can be moved out of the system by moving the gripping carriage along the longitudinal arch members 4 or 5.
  • a transport carriage 50 is located below the working platform 47 of the continuous caster at the level of the strand section following the mold 48, which is formed as a bending zone 49 in the case of straight molds, which is illustrated with dash-dotted lines in FIG. 5 guided on rails 51, which receives two gripping wagons 35.
  • this transport carriage has two guide rails 52 aligned with the guide rails 36.
  • Each of the two gripping carriages 35 is assigned to one of the free spaces 24 and 25. Cable or chain hoists 53 are installed on the transport carriage 50, by means of which the gripping carriage 35 can be lowered into the support and guide arch or pulled out of it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Continuous Casting (AREA)
EP82890117A 1981-09-17 1982-08-09 Courbe de soutien et de guidage pour des barres coulées Expired EP0076248B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0401681A AT370656B (de) 1981-09-17 1981-09-17 Stuetz- und fuehrungsbogen fuer gussstraenge
AT4016/81 1981-09-17

Publications (2)

Publication Number Publication Date
EP0076248A1 true EP0076248A1 (fr) 1983-04-06
EP0076248B1 EP0076248B1 (fr) 1986-01-15

Family

ID=3558515

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82890117A Expired EP0076248B1 (fr) 1981-09-17 1982-08-09 Courbe de soutien et de guidage pour des barres coulées

Country Status (5)

Country Link
US (1) US4485837A (fr)
EP (1) EP0076248B1 (fr)
JP (1) JPS5858970A (fr)
AT (1) AT370656B (fr)
DE (1) DE3268546D1 (fr)

Families Citing this family (3)

* 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
DE19824366A1 (de) * 1998-05-30 1999-12-02 Schloemann Siemag Ag Strangführungssegment für Brammengießanlagen
JP5302975B2 (ja) * 2008-01-14 2013-10-02 エスエムエス・コンキャスト・アーゲー 特に長い鋼材用の連続鋳造プラント及び連続鋳造法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT290750B (de) * 1969-05-30 1971-06-11 Voest Ag Stütz- und Führungsbogen für Gußstränge
AT341698B (de) * 1975-10-16 1978-02-27 Voest Ag Stutz- und fuhrungsbogen fur gussstrange, insbesondere fur brammengussstrange
DE2826337A1 (de) * 1977-06-28 1979-01-11 Voest Ag Stuetz- und fuehrungsbogen fuer gussstraenge
DE2135860B2 (de) * 1971-07-17 1979-12-20 Schloemann-Siemag Ag, 4000 Duesseldorf Stranggießanlage mit bogenförmiger Strangführung
EP0022121A1 (fr) * 1979-06-28 1981-01-07 VOEST-ALPINE Aktiengesellschaft Charpente de soutien et de guidage pour des installations de coulée continue
EP0030223A2 (fr) * 1979-11-28 1981-06-10 VOEST-ALPINE Aktiengesellschaft Installation sur le chevalet de support et de guidage d'une installation de coulée continue

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710847A (en) * 1969-05-30 1973-01-16 Voest Ag Elastically deformable curved supporting and guiding construction for cast bars
AT340618B (de) * 1975-01-07 1977-12-27 Voest Ag Strangfuhrung fur stranggiessanlagen mit einem von einem stelltrieb verschiebbaren rahmen bzw. joch
AT343303B (de) * 1975-10-01 1978-05-26 Voest Ag Stutz- und fuhrungsbogen fur gussstrange, insbesondere fur brammengussstrange
AT343831B (de) * 1975-11-12 1978-06-26 Voest Ag Stutz- und fuhrungsbogen fur gussstrange
CH627385A5 (de) * 1978-04-19 1982-01-15 Schloemann Siemag Ag Stranggiessanlage mit in segmente unterteilter strangfuehrung.
AT368419B (de) * 1978-09-19 1982-10-11 Voest Alpine Ag Strangfuehrung fuer stranggiessanlagen
DE2903540C2 (de) * 1979-01-31 1986-11-20 SMS Schloemann-Siemag AG, 4000 Düsseldorf Vorrichtung zum Befestigen der Strangführungssegmente einer Stranggießanlage
AT359675B (de) * 1979-03-07 1980-11-25 Voest Alpine Ag Stuetz- und fuehrungsgeruest fuer eine bogen- stranggiessanlage
US4351383A (en) * 1980-04-10 1982-09-28 Gladwin Corporation Bearings for continuous casting roller aprons

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT290750B (de) * 1969-05-30 1971-06-11 Voest Ag Stütz- und Führungsbogen für Gußstränge
DE2135860B2 (de) * 1971-07-17 1979-12-20 Schloemann-Siemag Ag, 4000 Duesseldorf Stranggießanlage mit bogenförmiger Strangführung
AT341698B (de) * 1975-10-16 1978-02-27 Voest Ag Stutz- und fuhrungsbogen fur gussstrange, insbesondere fur brammengussstrange
DE2826337A1 (de) * 1977-06-28 1979-01-11 Voest Ag Stuetz- und fuehrungsbogen fuer gussstraenge
EP0022121A1 (fr) * 1979-06-28 1981-01-07 VOEST-ALPINE Aktiengesellschaft Charpente de soutien et de guidage pour des installations de coulée continue
EP0030223A2 (fr) * 1979-11-28 1981-06-10 VOEST-ALPINE Aktiengesellschaft Installation sur le chevalet de support et de guidage d'une installation de coulée continue

Also Published As

Publication number Publication date
US4485837A (en) 1984-12-04
JPS5858970A (ja) 1983-04-07
AT370656B (de) 1983-04-25
EP0076248B1 (fr) 1986-01-15
ATA401681A (de) 1982-09-15
DE3268546D1 (en) 1986-02-27

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