EP1928618B1 - Device for changing a supporting roller segment of the strand guide of a curved strand continuous casting machine for liquid metals, in particular for liquid steel - Google Patents

Device for changing a supporting roller segment of the strand guide of a curved strand continuous casting machine for liquid metals, in particular for liquid steel Download PDF

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Publication number
EP1928618B1
EP1928618B1 EP06818607A EP06818607A EP1928618B1 EP 1928618 B1 EP1928618 B1 EP 1928618B1 EP 06818607 A EP06818607 A EP 06818607A EP 06818607 A EP06818607 A EP 06818607A EP 1928618 B1 EP1928618 B1 EP 1928618B1
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EP
European Patent Office
Prior art keywords
segment
guide
wheel pair
support roller
change chain
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.)
Not-in-force
Application number
EP06818607A
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German (de)
French (fr)
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EP1928618A1 (en
Inventor
Thomas Mogendorf
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.)
SMS Siemag AG
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SMS Siemag AG
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Filing date
Publication date
Application filed by SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP1928618A1 publication Critical patent/EP1928618A1/en
Application granted granted Critical
Publication of EP1928618B1 publication Critical patent/EP1928618B1/en
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Anticipated expiration legal-status Critical

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    • 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 device for changing a support roller segment of the strand guide of a continuous sheet casting machine for liquid metals, in particular for liquid steel materials.
  • Such a device for changing a support roller segment in the designated area is known from EP 1 506 066 B1 known.
  • this design aims at a higher carrying capacity and makes use of a first and a second traverse, wherein for the large load left and right angle brackets for recording vertical force components are provided at segment weights up to 60 t.
  • a device for changing a support roller segment of a strand guide a Bogenstrangg manmaschine for liquid metals.
  • This device has a track guide with paired rails, over the support roller segments are individually pulled out of a segment change chain hanging by crane or lowered.
  • the individual segments of the segment alternating chain each have a pair of wheels, which is guided over the paired rails of the track guide.
  • the support roller segment has a pair of change wheel, with which it is guided over the track guide.
  • the invention is based on the object in a known device for changing a support roller segment, by the geometry of the exchange rails and by the weight of the expansion chain resulting high deflection forces and the resulting in the upper side of the Stauerrotien segment transverse forces absorb while reducing the delivery weight of the support rollers -Segmentes, so that with a more favorable distribution of forces savings in effort is achieved.
  • the stated object is achieved in that the last, lowermost member of the segment change chain is provided in addition to the associated pair of wheels with a pair of Actuallysrad and that the center distance between the pair of wheels and the effetsradfar is adapted to the bow of the track management at the last link of the segment change chain.
  • the advantages are a reduction in the delivery weight in the support roller segments by several tons in a continuous casting machine (namely the main delivery and additional change segments), lower lateral forces in the upper side of a support roller segment and the elimination of the usual safety bolts on the segment change chain, the the swinging of the last tab secures.
  • the absorption of forces by the segment change chain is facilitated by the fact that the axial distance of the pair of guide wheels to the last, lowermost member of the segment change chain is substantially less than the center distance between two other segment change chain links.
  • center distance between the last, lowest link of the segment change chain and the pair of guide wheels amounts to approximately 50% of the respective center distances of the other segment change chain links.
  • a strand guide 2 is in Fig. 1 an already in the expansion or. Installation path to be replaced support roller segment 1 shown.
  • Each support roller segment 1 is associated with a sheet 2a of a rail guide.
  • the sheet 2a leads as a change path perpendicular from the operating location of the respective support roller segment to the continuous casting stage and is used as a track guide 3 with spaced rails 3a and 3b (FIGS. Fig. 2 ) educated.
  • the respective support roller segment 1 depends on the crane 4 by means of a segment change chain 5.
  • the support roller segment 1 itself has hitherto been guided in the rails 3a and 3b by means of two such change wheel pairs 6.
  • the special feature of the invention is that per support roller segment 1 on the segment frame 1 a only a pair of change wheel 6 is provided and that the last, lowest member 5 b of the segment change chain 5 is provided with a pair of the sheet 2 a of the rail guide 3 at a distance matched guide wheels 7. Thereby comes off a particularly favorable support of some tons heavy support roller segment 1.
  • the support roller segment 1 is supported in the rails 3a and 3b and on the other hand take over the wheels of the last, lowest segment change chain link 5b the other, statically determined load share. However, this load proportion is divided between the guide wheels 7 and the wheels of the last, lowermost segment change chain link 5b.
  • the adjustment of the support forces is based on experience, such as, for example, such that the change gear pair 6 in the lower region of the segment frame 1a, but about 100 - 120 mm higher than the usual (known) design is arranged.
  • the other end of the support in the transport direction of the support roller segment 1 is carried out such that the axial distance 8 of the guide wheel pair 7 is set to the last, lowest member 5b of the segment change chain 5 much lower than the center distance 9 between two other segment change chain links 5a.
  • the axial distance 8 of the pair of guide wheels 7 can be matched to the last, lowermost member 5b of the segment change chain 5 to the respective change rail geometry 10.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Continuous Casting (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

A device for changing a supporting roller segment (1) of the strand guide (2) of a curved strand continuous casting machine for liquid metals, in particular for liquid steel, comprising a track guide (3) in which the supporting roller segments (1) are changed in a suspended manner on a segment changing chain (5) on the crane (4), can be designed with a saving in weight with improved static mounting in the changing rail geometry (10) by only one change wheel pair (6) being arranged per supporting roller segment (1) on the segment frame (1a) and by the last, lowermost link (5b) of the segment changing chain (5) being provided with a pair of guide wheels (7) adapted to the curve (2a) of the rail guide (3) at the centre distance (8).

Description

Die Erfindung betrifft eine Einrichtung zum Wechseln eines Stützrollen-Segmentes der Strangführung einer Bogenstranggießmaschine für flüssige Metalle, insbesondere für flüssige Stahlwerkstoffe.The invention relates to a device for changing a support roller segment of the strand guide of a continuous sheet casting machine for liquid metals, in particular for liquid steel materials.

Eine derartige Einrichtung zum Wechseln eines Stützrollen-Segmentes auf dem bezeichneten Gebiet ist aus der EP 1 506 066 B1 bekannt. Diese Gestaltung zielt jedoch auf eine höhere Tragfähigkeit und bedient sich dazu einer ersten und einer zweiten Traverse, wobei für die große Last linke und rechte Winkelstützen zur Aufname von vertikalen Kraftkomponenten bei Segmentgewichten bis zu 60 t vorgesehen sind.Such a device for changing a support roller segment in the designated area is known from EP 1 506 066 B1 known. However, this design aims at a higher carrying capacity and makes use of a first and a second traverse, wherein for the large load left and right angle brackets for recording vertical force components are provided at segment weights up to 60 t.

Aus der japanischen Druckschrift JP 62142057 ist eine Einrichtung zum Wechseln eines Stützrollen-Segmentes einer Strangführung einer Bogenstranggießmaschine für flüssige Metalle bekannt. Diese Einrichtung weist eine Gleisführung mit paarweisen Schienen auf, über die Stützrollensegmente einzeln an einer Segmentwechselkette hängend per Kran herausziehbar oder absenkbar sind. Die einzeinen Glieder der Segmentwechselkette weisen jeweils ein Radpaar auf, welches über die paarweisen Schienen der Gleisführung geführt ist. Ähnlich weist auch das Stützrollensegment ein Wechselradpaar auf, mit dem es über die Gleisführung geführt ist.From the Japanese publication JP 62142057 a device for changing a support roller segment of a strand guide a Bogenstranggießmaschine is known for liquid metals. This device has a track guide with paired rails, over the support roller segments are individually pulled out of a segment change chain hanging by crane or lowered. The individual segments of the segment alternating chain each have a pair of wheels, which is guided over the paired rails of the track guide. Similarly, the support roller segment has a pair of change wheel, with which it is guided over the track guide.

Der Erfindung liegt die Aufgabe zugrunde bei einer bekannten Einrichtung zum Wechseln eines Stützrollen-Segmentes, durch die Geometrie der Wechselschienen und durch das Gewicht der Ausbaukette entstehende hohe Umlenkkräfte und die im oberen Seitenbereich des Stützrotien-Segmentes entstehenden Querkräfte aufzufangen bei gleichzeitiger Verminderung des Liefergewichtes des Stützrollen-Segmentes, so dass bei günstigerer Kräfteverteilung eine Ersparnis an Aufwand erzielt wird.The invention is based on the object in a known device for changing a support roller segment, by the geometry of the exchange rails and by the weight of the expansion chain resulting high deflection forces and the resulting in the upper side of the Stützrotien segment transverse forces absorb while reducing the delivery weight of the support rollers -Segmentes, so that with a more favorable distribution of forces savings in effort is achieved.

Die gestellte Aufgabe wird erfindungsgemäß dadurch gelöst, dass das letzte, unterste Glied der Segmentwechselkette neben dem ihm zugeordneten Radpaar mit einem Führungsradpaar versehen ist und dass der Achsabstand zwischen dem Radpaar und dem Führungsradpaar bei dem letzten Glied der Segmentwechselkette dem Bogen der Gleisführung angepasst ist.The stated object is achieved in that the last, lowermost member of the segment change chain is provided in addition to the associated pair of wheels with a pair of Führungsrad and that the center distance between the pair of wheels and the Führungsradpaar is adapted to the bow of the track management at the last link of the segment change chain.

Die Vorteile sind eine Verringerung des Liefergewichtes bei den Stützrollen-Segmenten um mehrere Tonnen in einer Stranggießmaschine (und zwar bei der Hauptlieferung und zusätzlichen Wechselsegmenten), geringere Querkräfte im oberen Seitenbereich eines Stützrollen-Segmentes und der Wegfall von sonst üblichen Sicherungsbolzen an der Segmentwechselkette, die das Herumschwenken der letzten Lasche sichert.The advantages are a reduction in the delivery weight in the support roller segments by several tons in a continuous casting machine (namely the main delivery and additional change segments), lower lateral forces in the upper side of a support roller segment and the elimination of the usual safety bolts on the segment change chain, the the swinging of the last tab secures.

Die Kräfteaufnahme durch die Segmentwechselkette wird dadurch begünstigt, dass der Achsabstand des Führungsrad-Paares zum letzten, untersten Glied der Segmentwechselkette wesentlich geringer ist als der Achsabstand zwischen zwei anderen Segmentwechselketten-Gliedern.The absorption of forces by the segment change chain is facilitated by the fact that the axial distance of the pair of guide wheels to the last, lowermost member of the segment change chain is substantially less than the center distance between two other segment change chain links.

Als vorteilhaft für die praktische Ausführung hat sich erwiesen, dass der Achsabstand zwischen dem letzten, untersten Glied der Segmentwechselkette und dem Führungsrad-Paar ca. 50% der jeweiligen Achsabstände der übrigen Segmentwechsel-Kettenglieder untereinander beträgt.It has proved to be advantageous for the practical embodiment that the center distance between the last, lowest link of the segment change chain and the pair of guide wheels amounts to approximately 50% of the respective center distances of the other segment change chain links.

In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt, die nachstehend näher beschrieben werden.In the drawings, embodiments of the invention are shown, which will be described in more detail below.

Es zeigen:

Fig. 1
eine Seitenansicht der Stranggießmaschine mit dem Verlauf der Schienengeometrie und einem momentan aus- oder einzufahrenden Stützrollen-Segment und
Fig. 2
eine Vorderansicht der Wechseleinrichtung mit Kran, Segmentwechselkette, Wechselschienengeometrie und dem zu transportierenden Stützrollen-Segment.
Show it:
Fig. 1
a side view of the continuous casting machine with the course of the rail geometry and a currently off or retractable support roller segment and
Fig. 2
a front view of the changing device with crane, segment change chain, change rail geometry and the transport roller segment to be transported.

Von einer Strangführung 2 ist in Fig. 1 ein bereits im Ausbau-bzw. Einbauweg auszutauschendes Stütz-Rollensegment 1 gezeigt. Jedem Stützrollen-Segment 1 ist ein Bogen 2a einer Schienenführung zugeordnet. Im weiteren Verlauf führt der Bogen 2a als Wechselweg senkrecht vom Betriebsort des jeweiligen Stützrollen-Segmentes bis zur Stranggießbühne und ist als Gleisführung 3 mit beabstandeten Schienen 3a und 3b (Fig. 2) ausgebildet. In der jeweiligen Gleisführung 3 hängt das jeweilige Stützrollen-Segment 1 am Kran 4 mittels einer Segmentwechselkette 5. Das Stützrollen-Segment 1 selbst ist bisher mittels zwei solcher Wechselradpaaren 6 in den Schienen 3a und 3b geführt. Da die Erfindung auf das bisherige obere Wechselradpaar u.a. zur Gewichtseinsparung verzichtet, ist gemäß Fig. 1 am Segmentrahmen 1 a nur noch ein Wechselradpaar 6 vorhanden. Ein Stützrollen-Segment 1 wird also zum Ausbau oder Einbau mittels der Segmentwechselkette 5 am Kran 4 hängend vor- oder rückwärts bewegt.From a strand guide 2 is in Fig. 1 an already in the expansion or. Installation path to be replaced support roller segment 1 shown. Each support roller segment 1 is associated with a sheet 2a of a rail guide. In the further course, the sheet 2a leads as a change path perpendicular from the operating location of the respective support roller segment to the continuous casting stage and is used as a track guide 3 with spaced rails 3a and 3b (FIGS. Fig. 2 ) educated. In the respective track guide 3, the respective support roller segment 1 depends on the crane 4 by means of a segment change chain 5. The support roller segment 1 itself has hitherto been guided in the rails 3a and 3b by means of two such change wheel pairs 6. Since the invention dispenses with the previous upper pair of changing wheels, inter alia, to save weight, is according to Fig. 1 on segment frame 1 a only one change wheel pair 6 available. A support roller segment 1 is thus moved forward for removal or installation by means of the segment change chain 5 on the crane 4 forward or backward.

Das Besondere der Erfindung ist, dass pro Stützrollen-Segment 1 am Segmentrahmen 1 a nur ein Wechselradpaar 6 vorgesehen ist und dass das letzte, unterste Glied 5b der Segmentwechselkette 5 mit einem Paar dem Bogen 2a der Schienenführung 3 im Abstand angepasste Führungsräder 7 versehen ist. Dadurch kommt eine besonders günstige Abstützung des einige Tonnen schweren Stützrollen-Segmentes 1 zustande. Einerseits stützt sich das Stützrollen-Segment 1 in die Schienen 3a und 3b und andererseits übernehmen die Räder des letzten, untersten Segmentwechsel-Kettengliedes 5b den andere, statisch bestimmten Lastanteil. Dieser Lastanteil wird jedoch auf die Führungsräder 7 und die Räder des letzten, untersten Segmentwechsel-Kettengliedes 5b aufgeteilt. Die Anpassung der Auflagerkräfte erfolgt nach Erfahrungswerten, wie bspw. derart, dass das Wechselradpaar 6 im unteren Bereich des Segmentrahmens 1a, jedoch ca. 100 - 120 mm höher gegenüber der üblichen (bekannten) Ausführung angeordnet ist. Das andere Ende der Abstützung in Transportrichtung des Stützrollen-Segmentes 1 wird derart ausgeführt, dass der Achsabstand 8 des Führungsrad-Paares 7 zum letzten, untersten Glied 5b der Segmentwechselkette 5 wesentlich geringer eingestellt wird als der Achsabstand 9 zwischen zwei anderen Segmentwechselketten-Gliedern 5a. Als Erfahrungswert kann je nach der Wechselschienengeometrie 10 der Gleisführung 3 (unterschiedliche Krümmungen des Bogens 2a) der Achsabstand 8 zwischen dem letzten untersten Glied 5b der Segmentwechselkette 5 und den Führungsrad-Paar 7 ca. 50% der jeweiligen Achsabstände 9 der übrigen Segmentwechsel-Kettenglieder 5a untereinander betragen.The special feature of the invention is that per support roller segment 1 on the segment frame 1 a only a pair of change wheel 6 is provided and that the last, lowest member 5 b of the segment change chain 5 is provided with a pair of the sheet 2 a of the rail guide 3 at a distance matched guide wheels 7. Thereby comes off a particularly favorable support of some tons heavy support roller segment 1. On the one hand, the support roller segment 1 is supported in the rails 3a and 3b and on the other hand take over the wheels of the last, lowest segment change chain link 5b the other, statically determined load share. However, this load proportion is divided between the guide wheels 7 and the wheels of the last, lowermost segment change chain link 5b. The adjustment of the support forces is based on experience, such as, for example, such that the change gear pair 6 in the lower region of the segment frame 1a, but about 100 - 120 mm higher than the usual (known) design is arranged. The other end of the support in the transport direction of the support roller segment 1 is carried out such that the axial distance 8 of the guide wheel pair 7 is set to the last, lowest member 5b of the segment change chain 5 much lower than the center distance 9 between two other segment change chain links 5a. As empirical value, depending on the change rail geometry 10 of the track guide 3 (different curvatures of the sheet 2a) the axial distance 8 between the last lowest member 5b of the segment change chain 5 and the pair of guide wheels 7 about 50% of the respective center distances 9 of the other segment change chain links 5a amount to each other.

Je nach der Lage eines Stützrollen-Segmentes 1 im Bogen der Strangführung 2 (durch Pfeil in Fig. 1 links nur angedeutet), kann der Achsabstand 8 des Führungsrad-Paares 7 zum letzten, untersten Glied 5b der Segmentwechselkette 5 auf die jeweilige Wechselschienengeometrie 10 abgestimmt werden.Depending on the position of a support roller segment 1 in the arc of the strand guide 2 (by arrow in Fig. 1 only indicated on the left), the axial distance 8 of the pair of guide wheels 7 can be matched to the last, lowermost member 5b of the segment change chain 5 to the respective change rail geometry 10.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
StützrollensegmentSupport roller segment
1a1a
Segmentrahmensegment frame
22
Strangführungstrand guide
2a2a
Bogen der SchienenführungBow of the rail guide
33
Gleisführungtrack management
3a3a
Schienerail
3b3b
Schienerail
44
Krancrane
55
SegmentwechselketteSegment change chain
5a5a
Segmentwechsel-KettengliedSegment change chain link
5b5b
letztes, unterstes Segmentwechsel-Kettengliedlast, lowest segment change chain link
66
WechselradpaarWechselradpaar
77
Führungsräder (Paar)Guide wheels (pair)
88th
AchsabstandWheelbase
99
Achsabstand zwischen übrigen Segmentwechsel-KettengliedernCenter distance between other segment change chain links
1010
WechselschienengeometrieAC rail geometry

Claims (3)

  1. Equipment for changing a support roller segment (1) of a strip guide (2) of a curved continuous casting machine for liquid metals, particularly for liquid steel materials, with a track guide (3), which forms the change path from the operating location of the respective support roller segment (1) in the strip guide (2) by way of a curve (2a) to the strip casting stage and in the paired rails (3a, 3b) of which the support roller segments (1) are individually demounted hanging at a segment change chain (5), which is withdrawable or lowerable by crane (4), and on change wheels (6), which are rotatably mounted at the support roller segments (1), or reinstalled after maintenance, wherein a respective wheel pair is associated with each of the links (5a) of the segment change chain (5); and wherein only one change wheel pair (6) is arranged at the segment frame (1a) per support roller segment (1); characterised in that the last, lowermost link (5b) of the segment change chain (5) is provided near the wheel pair, which is associated therewith, with a guide wheel pair (7); and that the axial spacing (8) between the wheel pair and the guide wheel pair (7) in the case of the last link (5b) of the segment change chain (5) is matched to the curve (2a) of the track guide (3).
  2. Equipment according to claim 1, characterised in that the axial spacing (8) between the wheel pair and the guide wheel pair (7) in the case of the last link (5b) of the segment change chain (5) is smaller than the axial spacing (9) between two other segment change chain links (5a).
  3. Equipment according to claim 2, characterised in that the axial spacing (8) between the wheel pair and the guide wheel pair (7) in the case of the last link (5b) of the segment change chain (5) is approximately 50% of the respective axial spacings (9) between two other segment change chain links (5a) with respect to one another.
EP06818607A 2005-12-08 2006-11-17 Device for changing a supporting roller segment of the strand guide of a curved strand continuous casting machine for liquid metals, in particular for liquid steel Not-in-force EP1928618B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005058753A DE102005058753A1 (en) 2005-12-08 2005-12-08 Device for changing a support roller segment of the strand guide of a continuous arc casting machine for liquid metals, in particular for liquid steel
PCT/EP2006/011022 WO2007065546A1 (en) 2005-12-08 2006-11-17 Device for changing a supporting roller segment of the strand guide of a curved strand continuous casting machine for liquid metals, in particular for liquid steel

Publications (2)

Publication Number Publication Date
EP1928618A1 EP1928618A1 (en) 2008-06-11
EP1928618B1 true EP1928618B1 (en) 2009-07-29

Family

ID=37775179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06818607A Not-in-force EP1928618B1 (en) 2005-12-08 2006-11-17 Device for changing a supporting roller segment of the strand guide of a curved strand continuous casting machine for liquid metals, in particular for liquid steel

Country Status (5)

Country Link
EP (1) EP1928618B1 (en)
CN (1) CN101378865B (en)
AT (1) ATE437711T1 (en)
DE (2) DE102005058753A1 (en)
WO (1) WO2007065546A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT508396B1 (en) * 2009-06-25 2013-01-15 Siemens Vai Metals Tech Gmbh DEVICE FOR CHANGING A SEGMENT IN A PASSENGER TRACK OF A CONTINUOUS CASTING MACHINE FOR FORGING LIQUID METAL
CN108584304A (en) * 2018-05-20 2018-09-28 上海力格郎环保科技有限公司 A kind of decline assembly in automatic transmission lowering means
DE102021207301A1 (en) * 2021-07-09 2023-01-12 Sms Group Gmbh Strand guide device and method for continuous casting of a metallic product in a continuous casting installation with such a strand guide device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735848A (en) * 1972-03-22 1973-05-29 Pittsburgh Steel Corp Idler roll mounting construction
JPS62142057A (en) * 1985-12-16 1987-06-25 Kobe Steel Ltd Exchanging apparatus for roll segment in continuous casting equipment

Also Published As

Publication number Publication date
CN101378865B (en) 2011-08-17
DE502006004400D1 (en) 2009-09-10
DE102005058753A1 (en) 2007-06-14
WO2007065546A1 (en) 2007-06-14
EP1928618A1 (en) 2008-06-11
ATE437711T1 (en) 2009-08-15
CN101378865A (en) 2009-03-04

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