EP1426126A1 - Control assembly for a closing member in a continuous casting machine, and corresponding continuous casting machine - Google Patents
Control assembly for a closing member in a continuous casting machine, and corresponding continuous casting machine Download PDFInfo
- Publication number
- EP1426126A1 EP1426126A1 EP03356191A EP03356191A EP1426126A1 EP 1426126 A1 EP1426126 A1 EP 1426126A1 EP 03356191 A EP03356191 A EP 03356191A EP 03356191 A EP03356191 A EP 03356191A EP 1426126 A1 EP1426126 A1 EP 1426126A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control assembly
- motor
- assembly according
- movement
- continuous casting
- 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
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 12
- 230000001131 transforming effect Effects 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims description 26
- 238000010168 coupling process Methods 0.000 claims description 26
- 238000005859 coupling reaction Methods 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 11
- 230000009466 transformation Effects 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 2
- 210000000056 organ Anatomy 0.000 description 7
- 238000005266 casting Methods 0.000 description 5
- 241000920340 Pion Species 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
- B22D41/20—Stopper-rod operating equipment
Definitions
- the present invention relates to a control assembly a shutter belonging to a casting installation continuous, as well as a continuous casting installation provided with such a control assembly.
- a continuous casting operation consists, first, of pouring molten metal in a tank, also known as a distributor, from a poached.
- a tank also known as a distributor
- This tank is furthermore provided with a shutter, also called distaff.
- the distaff is operated by means of a control assembly, also called actuator, according to a stroke ensuring a satisfactory filling phase of the mold.
- the shutter control assembly includes a training tree, free of slide in a translational movement relative to a guide assembly.
- This drive shaft is integral with an arm of return, directly supporting the shutter. It is in addition provided a rotary servo-motor, as well as a device for transforming the rotary movement, imparted by this motor, in a translational movement of the tree.
- this transformation device movement is realized in the form of a screw jack. he it should also be noted that the motor is offset laterally with respect to the drive shaft, in referring to the main direction of the latter.
- the shutter control assembly has a relatively large size. Furthermore, it is necessary to provide as many motors as there are guidance, which is disadvantageous in economic terms.
- the invention proposes to remedy the various disadvantages of the prior art mentioned above.
- a set of controls a shutter for a continuous casting installation comprising a guide assembly, a drive shaft of the shutter, able to move in translation by relative to the guide assembly, a motor having a rotary axis, as well as means capable of transforming the rotary movement of the motor in a translational movement of the drive shaft, characterized in that it is provided means allowing the removable fixing of the motor on the means of transforming the movement, so that the motor is capable of having a grip position and a rest position and in that, in the gripping position, the rotary axis of the motor extends substantially along a main direction of the drive shaft.
- the invention also relates to an installation for continuous casting, comprising a tank, which is suitable for receive molten metal and which has an orifice ensuring the flow of this molten metal, an ingot mold arranged downstream of this orifice, so that it can collect this molten metal, a shutter intended to seal selectively this orifice, as well as a set of control of this shutter, characterized in that this control assembly is as defined above.
- the continuous casting installation illustrated on the Figure 1, includes a tank 2, which is filled with molten metal 4, for example steel. The latter was poured into the tank, from a pocket not shown.
- This stopper rod can be operated according to its main axis, namely vertically in Figure 1, by through a control assembly 10, or actuator, which will be described more precisely in this following.
- This control assembly 10 comprises in particular a drive shaft 12, which can be moved in translation along arrow F, in this case vertically. This movement of the shaft 12 then induces a displacement of the stopper 6, materialized by the arrow vertical F ', via an intermediate arm 14.
- the walls of the nozzle 8 are moreover provided a tube 16, made of a refractory material, which opens into an ingot mold 18.
- the latter receives a dummy not shown, intended to be progressively removed, in order to ensure in known manner the extraction of a solidified metal bar, also not shown.
- FIGS 2 to 5 illustrate, more precisely, the control unit 10.
- control set also includes a set of fixed guide, of conventional type, which is designated in its together by reference 20.
- This assembly 20 has a cylindrical barrel 22, on which are attached flanges 24, allowing the fixing on a plate 26, integral with the tank 2.
- This barrel 22 contains, as is known as such, two ball bushings 28, as well as a device 30, allowing conventionally to prevent the rotation of the shaft 12 around its vertical axis A.
- the barrel 22 is screwed, at its lower end, on a base 32, which is itself extended, opposite of the barrel, by an annular skirt 34.
- the latter defines thus, with the walls facing the base 32, a housing 36, connected to an opening central unit 38, axially hollowed out in the base 32.
- the walls of the skirt 34 carry pins 40 extending radially inward.
- the function of these pawns 40 which are provided here three in number, will be explained in the following.
- the control assembly 10 further comprises a motor 42, of the conventional type, provided with a rotary axis 44, extending vertically. This engine is partially received in a box 46, fitted with handles 48, as well as a power supply 50.
- This box 46 is closed, at its upper part facing the barrel 22, of a cover 52, in which is dug a central hole for the passage of axis 44.
- This the latter is united, through a key 54, of a first coupling member 56, received in a flexible case 58, which will both be described in more detail below.
- This case 58 is arranged in the interior volume a connecting piece 60, of cylindrical shape, which is fixed to the motor 42 by any suitable means.
- the wall of this connecting piece 60 is hollowed out with different notches 62, which are provided in a number corresponding to that of pawns 40.
- each notch 62 which has overall an L shape, opens axially at the level from the end of the connecting piece 60 opposite the cover.
- This notch is extended by a radial notch 64, which defines an end cavity 66, bordered by a neck intermediate 68.
- the control assembly 10 also includes means for transforming the rotary movement of the motor 42 in a translational movement of the shaft 12.
- these means comprise a jack screw 70, known as such, which is housed mainly in the barrel 22 of the guide assembly 20.
- the axis 72 of this jack 70 which passes through the base 32, is secured, by means of a key 74, to a second coupling member 76.
- This axis 72 which can be driven by the axis 44 of the motor 42, is able to cooperate, classic way, with a nut 78 secured to the shaft 12.
- the two coupling members 56 and 76 have grooves, defining two by two of the recesses. In service, in a conventional manner, the grooves of one of these two organs penetrate into the recesses of each other, so there is a possibility temporary coupling, with declutching, between these two organs 56 and 76.
- member 56 is housed at remains in the flexible housing 58, while the member 76 is able to enter this case temporarily.
- an elastic element 80 is provided, in the occurrence a spring washer, intended to bring back towards the bottom the coupling member 76.
- the operator When the motor 42 is detached from the shaft 10, the operator has a part of the engine mentioned above, which is housed in its box 46 provided with handling handles 48, the coupling member 56 finding it accessible.
- the coupling member 76 present at the lower end of the axis of the jack 70, is also accessible.
- each pin 40 is received in a corresponding cavity 66, after having crossed an intermediate neck 68.
- the spring washer 80 ensures an axial return effect of each pin 40 at the bottom of the cavity 66, according to arrow f 3 of this same figure 5. This thus prevents any untimely exit from this pin 40, outside of its cavity 66.
- the motor 42 can be fixed, in a removable manner, on the axis 72 of the screw jack 70.
- this motor has two positions, namely a grip position, in which the two couplings 56 and 76 cooperate mutually, as well as a rest position, in which the above couplings are distant from each other.
- the means for fixing this motor 42 to this jack 70 are bayonet type. They do indeed involve a translational movement, combined with a movement of rotation of the motor relative to this cylinder.
- the axis 44 of the motor 42 drives the shaft 12, by through the means of transformation of the movement, which include the two coupling members 56 and 76, as well as the screw jack 70. In this position, the rotary axis 44 of the motor 42 extends substantially along the main axis A of the drive shaft 12.
- box 46 in which the motor 42, is located below the barrel 22, substantially in continuation of the latter. This is advantageous, in terms of compactness of the control assembly 10 of the distaff 6.
- this control assembly 10 is provided with a lever, not shown, intended so classic to manual movement of the shaft 12. This is to be compared with teaching of EP-A-0 734 801, in which the device making it possible to manually operating the stopper rod consists of a handwheel coupled to a ball screw.
- the invention achieves the objectives previously mentioned.
- the set of control according to the invention is compact remarkable, in service. This is to compare with art front, in which the motor is offset laterally with respect to the guide assembly.
- the closure emergency stopper is carried out by gravity, on simple deactivation of the engine.
- the weight of the mobile system, including the tree, the arm and the stopper, is enough to bring down the distaff, so as to allow such an emergency closure.
- EP-A-0 734 801 in which an electrical resource is used by accumulation, which implements the entire chain of motorization, namely the electronic device for control, cables, motor and ball screw.
- a failure of one of these organs such as lifting of a cable or an engine failure, thus makes any emergency closing.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Paper (AREA)
- Continuous Casting (AREA)
- Control Of Non-Electrical Variables (AREA)
- Basic Packing Technique (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Transmission Devices (AREA)
Abstract
Description
La présente invention concerne un ensemble de commande d'un obturateur appartenant à une installation de coulée continue, ainsi qu'une installation de coulée continue munie d'un tel ensemble de commande.The present invention relates to a control assembly a shutter belonging to a casting installation continuous, as well as a continuous casting installation provided with such a control assembly.
De façon classique, une opération de coulée continue consiste, dans un premier temps, à déverser du métal fondu dans une cuve, encore dénommée répartiteur, à partir d'une poche. Cette cuve se trouve en outre pourvue d'un obturateur, encore appelé quenouille.Conventionally, a continuous casting operation consists, first, of pouring molten metal in a tank, also known as a distributor, from a poached. This tank is furthermore provided with a shutter, also called distaff.
Lorsque le métal fondu a atteint un niveau donné dans la cuve, il s'agit alors de le déverser dans une lingotière, sous l'effet d'un mouvement de libération de l'obturateur. Ceci initie alors une phase de remplissage de la lingotière, jusqu'à atteindre un niveau donné de consigne.When the molten metal has reached a given level in the tank, it is then a question of pouring it into a ingot mold, under the effect of a liberation movement of the shutter. This then initiates a filling phase of the ingot mold, until reaching a given level of setpoint.
Selon une première variante, il est tout d'abord connu de mettre en oeuvre, de façon manuelle, le démarrage de cette coulée continue. Cependant, outre son relatif manque de répétitivité, cette solution nécessite l'intervention d'au moins un opérateur.According to a first variant, it is first of all known to implement, manually, the start of this casting continues. However, apart from its relative lack repeatability, this solution requires intervention at least one operator.
Afin de remédier à ces inconvénients, il a été proposé de réaliser le démarrage précité, de manière automatique. Dans cet esprit, on manoeuvre la quenouille au moyen d'un ensemble de commande, encore dénommé actionneur, selon une course garantissant une phase de remplissage satisfaisante de la lingotière.In order to remedy these drawbacks, it has been proposed to carry out the aforementioned start-up, automatically. In this spirit, the distaff is operated by means of a control assembly, also called actuator, according to a stroke ensuring a satisfactory filling phase of the mold.
Un tel agencement est notamment connu de EP-A-0 734 801. L'ensemble de commande de l'obturateur, décrit dans ce document, comprend un arbre d'entraínement, libre de coulisser selon un mouvement de translation par rapport à un ensemble de guidage.Such an arrangement is known in particular from EP-A-0 734 801. The shutter control assembly, described in this document, includes a training tree, free of slide in a translational movement relative to a guide assembly.
Cet arbre d'entraínement est solidaire d'un bras de renvoi, supportant de façon directe l'obturateur. Il est par ailleurs prévu un servo-moteur rotatif, ainsi qu'un dispositif permettant de transformer le mouvement rotatif, imparti par ce moteur, en un mouvement de translation de l'arbre.This drive shaft is integral with an arm of return, directly supporting the shutter. It is in addition provided a rotary servo-motor, as well as a device for transforming the rotary movement, imparted by this motor, in a translational movement of the tree.
De façon plus précise, ce dispositif de transformation de mouvement est réalisé sous la forme d'un vérin à vis. Il est par ailleurs à noter que le moteur se trouve décalé latéralement par rapport à l'arbre d'entraínement, en faisant référence à la direction principale de ce dernier.More precisely, this transformation device movement is realized in the form of a screw jack. he it should also be noted that the motor is offset laterally with respect to the drive shaft, in referring to the main direction of the latter.
Cette solution connue présente cependant certains inconvénients.This known solution however presents certain disadvantages.
Ainsi, l'ensemble de commande de l'obturateur présente un encombrement relativement élevé. Par ailleurs, il est nécessaire de prévoir autant de moteurs que d'organes de guidage, ce qui est désavantageux en termes économiques.So the shutter control assembly has a relatively large size. Furthermore, it is necessary to provide as many motors as there are guidance, which is disadvantageous in economic terms.
L'invention se propose de remédier aux différents inconvénients de l'art antérieur évoqués ci-dessus.The invention proposes to remedy the various disadvantages of the prior art mentioned above.
A cet effet, elle a pour objet un ensemble de commande d'un obturateur pour une installation de coulée continue, comprenant un ensemble de guidage, un arbre d'entraínement de l'obturateur, apte à se déplacer en translation par rapport à l'ensemble de guidage, un moteur, possédant un axe rotatif, ainsi que des moyens aptes à transformer le mouvement rotatif du moteur en un mouvement de translation de l'arbre d'entraínement, caractérisé en ce qu'il est prévu des moyens permettant la fixation amovible du moteur sur les moyens de transformation du mouvement, de sorte que le moteur est apte à posséder une position de prise et une position de repos et en ce que, dans la position de prise, l'axe rotatif du moteur s'étend sensiblement selon une direction principale de l'arbre d'entraínement.To this end, it relates to a set of controls a shutter for a continuous casting installation, comprising a guide assembly, a drive shaft of the shutter, able to move in translation by relative to the guide assembly, a motor having a rotary axis, as well as means capable of transforming the rotary movement of the motor in a translational movement of the drive shaft, characterized in that it is provided means allowing the removable fixing of the motor on the means of transforming the movement, so that the motor is capable of having a grip position and a rest position and in that, in the gripping position, the rotary axis of the motor extends substantially along a main direction of the drive shaft.
Selon d'autres caractéristiques de l'invention :
- les moyens de fixation amovible sont de type à baïonnette ;
- les moyens de fixation de type à baïonnette comprennent au moins un pion, monté sur l'ensemble de guidage, apte à coopérer avec au moins une encoche ménagée dans une pièce de liaison, solidaire en translation du moteur ;
- dans la position de prise, le ou chaque pion est reçu dans une cavité correspondante de l'encoche, cavité qui est bordée par un col intermédiaire ;
- il est prévu des moyens de rappel, notamment élastique, aptes à ramener axialement chaque pion vers le fond d'une cavité correspondante, de manière à empêcher toute désolidarisation intempestive entre le moteur et les moyens de transformation du mouvement ;
- le moteur est reçu au moins en partie dans un caisson, notamment muni de poignées de manutention ;
- dans la position de prise, le caisson se situe à peu près dans le prolongement de l'ensemble de guidage ;
- dans la position de prise, le caisson est disposé au-dessous de l'ensemble de guidage ;
- la pièce de liaison est montée sur ledit caisson ;
- la pièce de liaison est cylindrique, et elle est apte à pénétrer au moins partiellement dans un logement de l'ensemble de guidage ;
- l'axe rotatif du moteur s'étend au moins partiellement dans le volume intérieur de ladite pièce de liaison ;
- les moyens de transformation du mouvement comprennent un vérin, notamment un vérin à vis, possédant un axe apte à être entraíné en rotation par l'axe rotatif du moteur, et il est prévu des moyens d'accouplement temporaire de ces deux axes ;
- les moyens d'accouplement temporaire comprennent deux organes d'accouplement, aptes à engrener mutuellement de façon temporaire, chaque organe d'accouplement étant monté sur un axe correspondant ;
- les organes d'accouplement sont cannelés ;
- l'un des organes d'accouplement est solidaire d'un boítier souple, apte à recevoir l'autre organe d'accouplement, dans la position d'engrènement mutuelle de ces deux organes.
- the removable fixing means are of the bayonet type;
- the bayonet type fixing means comprise at least one pin, mounted on the guide assembly, capable of cooperating with at least one notch formed in a connecting piece, integral in translation with the motor;
- in the gripping position, the or each pin is received in a corresponding cavity in the notch, which cavity is bordered by an intermediate neck;
- return means are provided, in particular elastic, capable of bringing each pin axially towards the bottom of a corresponding cavity, so as to prevent any untimely separation between the motor and the movement transformation means;
- the engine is received at least partially in a box, in particular provided with handling handles;
- in the gripping position, the box is located approximately in the extension of the guide assembly;
- in the gripping position, the box is arranged below the guide assembly;
- the connecting piece is mounted on said box;
- the connecting piece is cylindrical, and it is able to penetrate at least partially into a housing of the guide assembly;
- the rotary axis of the motor extends at least partially in the internal volume of said connecting piece;
- the means for transforming the movement comprise a jack, in particular a screw jack, having an axis capable of being rotated by the rotary axis of the motor, and means are provided for temporary coupling of these two axes;
- the temporary coupling means comprise two coupling members, able to mesh with each other temporarily, each coupling member being mounted on a corresponding axis;
- the coupling members are grooved;
- one of the coupling members is secured to a flexible housing, capable of receiving the other coupling member, in the position of mutual engagement of these two members.
L'invention a également pour objet une installation de coulée continue, comprenant une cuve, qui est apte à recevoir du métal fondu et qui est munie d'un orifice assurant l'écoulement de ce métal fondu, une lingotière disposée en aval de cet orifice, de manière à pouvoir recueillir ce métal fondu, un obturateur destiné à obturer de façon sélective cet orifice, ainsi qu'un ensemble de commande de cet obturateur, caractérisé en ce que cet ensemble de commande est tel que défini ci-dessus.The invention also relates to an installation for continuous casting, comprising a tank, which is suitable for receive molten metal and which has an orifice ensuring the flow of this molten metal, an ingot mold arranged downstream of this orifice, so that it can collect this molten metal, a shutter intended to seal selectively this orifice, as well as a set of control of this shutter, characterized in that this control assembly is as defined above.
L'invention va être décrite ci-après, en référence aux dessins annexés, donnés uniquement à titre d'exemple non limitatif, dans lesquels :
- la figure 1 est une vue générale, illustrant une installation de coulée continue conforme à l'invention ;
- la figure 2 est une vue de face, illustrant un ensemble de commande appartenant à l'installation de coulée continue de la figure 1 ;
- la figure 3 est une vue en coupe de côté, illustrant l'ensemble de commande de la figure 2 ;
- la figure 4 est une vue à plus grande échelle, illustrant une partie de cet ensemble de commande ; et
- la figure 5 est une vue en coupe longitudinale, illustrant une pièce de liaison appartenant à l'ensemble de commande des figures 2 à 4.
- Figure 1 is a general view illustrating a continuous casting installation according to the invention;
- Figure 2 is a front view illustrating a control assembly belonging to the continuous casting installation of Figure 1;
- Figure 3 is a side sectional view illustrating the control assembly of Figure 2;
- Figure 4 is an enlarged view illustrating a part of this control assembly; and
- FIG. 5 is a view in longitudinal section, illustrating a connecting piece belonging to the control assembly of FIGS. 2 to 4.
L'installation de coulée continue, illustrée sur la
figure 1, comprend une cuve 2, qui se trouve remplie de
métal fondu 4, par exemple d'acier. Ce dernier a été
déversé dans la cuve, depuis une poche non représentée.The continuous casting installation, illustrated on the
Figure 1, includes a
Le fond de cette cuve se trouve fermé, de façon
connue, par un obturateur 6, ou quenouille, qui définit un
orifice inférieur de passage du métal, encore dénommé
busette 8. Cette quenouille peut être manoeuvrée selon son
axe principal, à savoir verticalement sur la figure 1, par
l'intermédiaire d'un ensemble de commande 10, ou
actionneur, qui sera décrit de façon plus précise dans ce
qui suit.The bottom of this tank is closed, so
known, by a
Cet ensemble de commande 10 comprend notamment un
arbre d'entraínement 12, pouvant être déplacé en
translation selon la flèche F, en l'occurrence
verticalement. Ce mouvement de l'arbre 12 induit alors un
déplacement de la quenouille 6, matérialisé par la flèche
verticale F', via un bras intermédiaire 14.This
Les parois de la busette 8 sont par ailleurs pourvues
d'un tube 16, réalisé en un matériau réfractaire, qui
débouche dans une lingotière 18. Cette dernière reçoit un
mannequin non représenté, destiné à être progressivement
retiré, afin d'assurer de façon connue l'extraction d'une
barre de métal solidifiée, également non représentée.The walls of the
Les figures 2 à 5 illustrent, de façon plus précise,
l'ensemble de commande 10.Figures 2 to 5 illustrate, more precisely,
the
On y retrouve l'arbre 12, dont l'axe principal, en
l'occurrence vertical, est affecté de la référence A, ainsi
que le bras de renvoi 14, illustré de façon partielle.
L'ensemble de commande comprend également un ensemble de
guidage fixe, de type classique, qui est désigné dans son
ensemble par la référence 20.We find there the
Cet ensemble 20 possède un fût cylindrique 22, sur
lequel sont rapportées des brides 24, permettant la
fixation sur une plaque 26, solidaire de la cuve 2. Ce fût
22 renferme, de manière connue en tant que telle, deux
douilles à billes 28, ainsi qu'un dispositif 30, permettant
de façon classique d'empêcher la rotation de l'arbre 12
autour de son axe vertical A.This
Le fût 22 se trouve vissé, à son extrémité inférieure,
sur une embase 32, qui est elle-même prolongée, à l'opposé
du fût, par une jupe annulaire 34. Cette dernière définit
ainsi, avec les parois en regard de l'embase 32, un
logement 36, mis en communication avec une ouverture
centrale 38, creusée axialement dans l'embase 32.The
Par ailleurs, les parois de la jupe 34 portent des
pions 40 s'étendant radialement vers l'intérieur. La
fonction de ces pions 40, qui sont prévus en l'occurrence
au nombre de trois, sera explicitée dans ce qui suit.Furthermore, the walls of the
L'ensemble de commande 10 comprend en outre un moteur
42, de type classique, pourvu d'un axe rotatif 44,
s'étendant verticalement. Ce moteur est reçu partiellement
dans un caisson 46, équipé de poignées 48, ainsi que d'une
arrivée de courant 50.The
Ce caisson 46 est fermé, à sa partie supérieure
tournée vers le fût 22, d'un capot 52, dans lequel est
creusé un orifice central de passage de l'axe 44. Ce
dernier se trouve solidaire, par l'intermédiaire d'une
clavette 54, d'un premier organe d'accouplement 56, reçu
dans un boítier souple 58, qui seront tous deux décrits
plus en détail dans ce qui suit.This
Ce boítier 58 est disposé dans le volume intérieur
d'une pièce de liaison 60, de forme cylindrique, qui est
fixée sur le moteur 42 par tout moyen approprié. Comme le
montre plus particulièrement la figure 5, la paroi de cette
pièce de liaison 60 est creusée de différentes encoches 62,
qui sont prévues en un nombre correspondant à celui des
pions 40.This
De façon plus précise, chaque encoche 62, qui présente
globalement une forme de L, débouche axialement au niveau
de l'extrémité de la pièce de liaison 60 opposée au capot.
Cette encoche se prolonge par une échancrure radiale 64,
qui définit une cavité d'extrémité 66, bordée par un col
intermédiaire 68.More precisely, each
L'ensemble de commande 10 comprend également des
moyens permettant de transformer le mouvement rotatif du
moteur 42 en un mouvement de translation de l'arbre 12.The
De façon plus précise, ces moyens comprennent un vérin
à vis 70, connu en tant que tel, qui se trouve logé
principalement dans le fût 22 de l'ensemble de guidage 20.
L'axe 72 de ce vérin 70, qui traverse l'embase 32, est
solidaire, par l'intermédiaire d'une clavette 74, d'un
second organe d'accouplement 76. Cet axe 72, qui peut être
entraíné par l'axe 44 du moteur 42, est apte à coopérer, de
façon classique, avec un écrou 78 solidaire de l'arbre
d'entraínement 12.More specifically, these means comprise a
Les deux organes d'accouplement 56 et 76 possèdent des
cannelures, délimitant deux à deux des renfoncements. En
service, de manière classique, les cannelures de l'un de
ces deux organes pénètrent dans les renfoncements de
l'autre, de sorte qu'il existe une possibilité
d'accouplement temporaire, avec débrayage, entre ces deux
organes 56 et 76.The two
Il est à noter que l'organe 56 se trouve logé à
demeure dans le boítier souple 58, alors que l'organe 76
est apte à pénétrer dans ce boítier de façon temporaire.
Enfin, il est prévu un élément élastique 80, en
l'occurrence une rondelle ressort, destiné à ramener vers
le bas l'organe d'accouplement 76.It should be noted that
Le fonctionnement de l'ensemble de commande 10 décrit
ci-dessus va maintenant être explicité.The operation of the
Lorsque le moteur 42 est désolidarisé de l'arbre
d'entraínement 10, l'opérateur dispose d'une part du moteur
précité, qui est logé dans son caisson 46 pourvu des
poignées de manutention 48, l'organe d'accouplement 56 se
trouvant accessible. D'autre part, l'organe d'accouplement
76, présent à l'extrémité inférieure de l'axe du vérin 70,
se trouve également accessible.When the
Il s'agit alors de manipuler le caisson 46, grâce aux
poignées 48, selon un mouvement de translation, globalement
dirigé vers le haut, de manière à tout d'abord engager la
pièce de liaison 60 dans le logement 36.It is then a question of handling the
A un moment donné de cette translation, on opère si
nécessaire une faible rotation, voisine de quelques degrés,
de manière à assurer la coopération des deux organes
d'accouplement cannelés 56 et 76. De la sorte, l'organe 76
est alors reçu dans le volume intérieur du boítier souple
58, lui-même solidaire du premier organe d'accouplement 56.At a given point in this translation, we operate if
necessary a small rotation, close to a few degrees,
so as to ensure the cooperation of the two bodies
splined
Puis, en continuant la translation du caisson 46, vers
le haut, les pions 40 se trouvent reçus au voisinage du
débouché des différentes encoches 62, ménagées dans cette
pièce de liaison 60. Ces pions 40 progressent alors
axialement par rapport à ces encoches, selon la flèche f 1
représentée sur la figure 5.Then, continuing the translation of the
Lorsque les pions viennent en butée axiale contre les
parois des encoches 62, il s'agit alors de faire pivoter le
caisson 46. Ceci induit ainsi une progression des pions 40
le long des échancrures 64, selon la flèche f 2 représentée
sur la figure 5.When the pins come into axial abutment against the walls of the
Au terme de ce mouvement de pivotement, chaque pion 40
est reçu dans une cavité correspondante 66, après avoir
franchi un col intermédiaire 68. Il est à noter que la
rondelle ressort 80 assure un effet de rappel axial de
chaque pion 40 au fond de la cavité 66, selon la flèche f 3
de cette même figure 5. Ceci empêche ainsi toute sortie
intempestive de ce pion 40, hors de sa cavité 66.At the end of this pivoting movement, each
Ainsi, le moteur 42 peut être fixé, de façon amovible,
sur l'axe 72 du vérin à vis 70. De la sorte, ce moteur
possède deux positions, à savoir une position de prise,
dans laquelle les deux accouplements 56 et 76 coopèrent
mutuellement, ainsi qu'une position de repos, dans laquelle
les accouplements précités sont distants l'un de l'autre.Thus, the
Par ailleurs, dans l'exemple décrit et représenté, les
moyens de fixation de ce moteur 42 sur ce vérin 70 sont de
type à baïonnette. Ils font en effet intervenir un
mouvement de translation, combiné à un mouvement de
rotation du moteur par rapport à ce vérin.Furthermore, in the example described and shown, the
means for fixing this
En service, dans la positon de prise évoquée ci-dessus,
l'axe 44 du moteur 42 entraíne l'arbre 12, par
l'intermédiaire des moyens de transformation du mouvement,
qui comprennent les deux organes d'accouplement 56 et 76,
ainsi que le vérin à vis 70. Dans cette position de prise,
l'axe rotatif 44 du moteur 42 s'étend sensiblement selon
l'axe principal A de l'arbre d'entraínement 12.In service, in the socket position mentioned above,
the
Par ailleurs, le caisson 46, dans lequel est reçu le
moteur 42, se trouve au-dessous du fût 22, sensiblement
dans le prolongement de ce dernier. Ceci est avantageux, en
termes de compacité de l'ensemble de commande 10 de la
quenouille 6.Furthermore, the
Il est enfin à noter que cet ensemble de commande 10
est pourvu d'un levier, non représenté, destiné de façon
classique à la mise en mouvement manuelle de l'arbre
d'entraínement 12. Ceci est à comparer avec l'enseignement
de EP-A-0 734 801, dans lequel le dispositif permettant de
manoeuvrer manuellement la quenouille est constitué d'un
volant couplé à une vis à bille.Finally, it should be noted that this
Un tel système ne permet par une utilisation en coulée, car la vitesse de déplacement de la quenouille s'en trouve très limitée. Il est ainsi impossible de réaliser un démarrage manuel d'une coulée, avec un tel dispositif, étant donné que l'ouverture initiale de la quenouille, de l'ordre de 15 à 20 mm, lors d'un démarrage, doit être réalisée en moins d'une seconde.Such a system does not allow use in casting, because the speed of movement of the stopper rod is finds it very limited. It is thus impossible to carry out a manual start of a casting, with such a device, since the initial opening of the stopper rod, the order of 15 to 20 mm, during a start-up, must be done in less than a second.
L'invention permet de réaliser les objectifs précédemment mentionnés.The invention achieves the objectives previously mentioned.
En effet, comme on l'a vu ci-dessus, l'ensemble de commande conforme à l'invention est d'une compacité remarquable, en service. Ceci est à comparer avec l'art antérieur, dans lequel le moteur se trouve décalé latéralement par rapport à l'ensemble de guidage.Indeed, as we saw above, the set of control according to the invention is compact remarkable, in service. This is to compare with art front, in which the motor is offset laterally with respect to the guide assembly.
Par ailleurs, les moyens de fixation amovible du moteur sur le vérin à vis autorisent un démontage rapide de ce dernier.Furthermore, the removable fixing means of the motor on the screw jack allow rapid disassembly of this last.
De la sorte, il n'est pas nécessaire de disposer d'autant de moteurs que d'ensembles de guidage, le moteur étant uniquement réservé à l'étape de coulée. En d'autres termes, les ensemble de guidage qui sont situés à d'autres postes de la coulée continue, tels que le montage, le démontage, le préchauffage ou le refroidissement, n'ont pas besoin d'être munis d'un moteur correspondant.In this way, it is not necessary to have as many motors as there are guide assemblies, the motor being reserved only for the casting stage. In others terms, the guide assemblies that are located at other continuous casting stations, such as assembly, disassembly, preheating or cooling, have no need to have a matching motor.
Cette dernière mesure apparaít ainsi particulièrement avantageuse, en termes économiques.This last measure thus appears particularly advantageous, in economic terms.
Enfin, dans l'agencement de l'invention, la fermeture d'urgence de la quenouille est réalisée par gravité, sur simple désactivation du moteur. Le poids du système mobile, comprenant l'arbre, le bras et la quenouille, suffit ainsi pour faire descendre la quenouille, de manière à permettre une telle fermeture d'urgence.Finally, in the arrangement of the invention, the closure emergency stopper is carried out by gravity, on simple deactivation of the engine. The weight of the mobile system, including the tree, the arm and the stopper, is enough to bring down the distaff, so as to allow such an emergency closure.
Ceci est à comparer avec EP-A-0 734 801, dans lequel il est fait appel à une ressource électrique par accumulation, qui met en oeuvre toute la chaíne de motorisation, à savoir le dispositif électronique de commande, les câbles, le moteur et la vis à billes. This is to be compared with EP-A-0 734 801, in which an electrical resource is used by accumulation, which implements the entire chain of motorization, namely the electronic device for control, cables, motor and ball screw.
Une panne d'un de ces organes, telle que l'arrachage d'un câble ou une panne moteur, rend ainsi impossible toute fermeture d'urgence.A failure of one of these organs, such as lifting of a cable or an engine failure, thus makes any emergency closing.
Claims (16)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0215290A FR2848131B1 (en) | 2002-12-04 | 2002-12-04 | CONTROL ASSEMBLY FOR A SHUTTER BELONGING TO A CONTINUOUS CASTING PLANT, AND CORRESPONDING CONTINUOUS CASTING INSTALLATION |
FR0215290 | 2002-12-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1426126A1 true EP1426126A1 (en) | 2004-06-09 |
EP1426126B1 EP1426126B1 (en) | 2011-03-23 |
Family
ID=32309995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03356191A Expired - Lifetime EP1426126B1 (en) | 2002-12-04 | 2003-12-03 | Control assembly for a closing member in a continuous casting machine, and corresponding continuous casting machine |
Country Status (7)
Country | Link |
---|---|
US (1) | US6960317B2 (en) |
EP (1) | EP1426126B1 (en) |
KR (1) | KR101081950B1 (en) |
CN (1) | CN1286599C (en) |
AT (1) | ATE502708T1 (en) |
DE (1) | DE60336447D1 (en) |
FR (1) | FR2848131B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3782748A1 (en) | 2019-08-20 | 2021-02-24 | Refractory Intellectual Property GmbH & Co. KG | Drive device for a stopper in a metallurgical vessel |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8210402B2 (en) * | 2009-02-09 | 2012-07-03 | Ajf, Inc. | Slag control shape device with L-shape loading bracket |
US8580186B2 (en) * | 2010-04-19 | 2013-11-12 | Novelis Inc. | Flow control apparatus for molten metal |
EP2574414A1 (en) | 2011-09-30 | 2013-04-03 | Siemens VAI Metals Technologies GmbH | Electromechanical stopper drive |
DE102013218345B4 (en) | 2013-09-12 | 2021-02-04 | Sms Group Gmbh | Device for closing a drain opening in a metallurgical vessel |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1139241B (en) * | 1960-08-23 | 1962-11-08 | Juenkerather Maschbau Gmbh | Actuating device for the plug of a pouring ladle |
GB970513A (en) * | 1962-03-31 | 1964-09-23 | Junkerather Maschinenfabrik G | Means for operating the stoppers of casting ladles |
JPH04270049A (en) * | 1991-02-25 | 1992-09-25 | Sumitomo Metal Ind Ltd | Stopper device for continuous caster and controller for molten metal surface level |
US5674426A (en) * | 1995-03-28 | 1997-10-07 | Concast Standard Ag | Device for controlling an inflow of metal by means of a stopper |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4953761A (en) * | 1988-09-27 | 1990-09-04 | Inductotherm Corp. | Stopper rod spatial control mechanism |
CA2367546C (en) * | 1999-04-09 | 2008-12-23 | Metaullics Systems Co., L.P. | Coupling for a molten metal processing system |
-
2002
- 2002-12-04 FR FR0215290A patent/FR2848131B1/en not_active Expired - Fee Related
-
2003
- 2003-11-26 US US10/721,226 patent/US6960317B2/en not_active Expired - Lifetime
- 2003-12-02 KR KR1020030086905A patent/KR101081950B1/en active IP Right Grant
- 2003-12-03 AT AT03356191T patent/ATE502708T1/en active
- 2003-12-03 EP EP03356191A patent/EP1426126B1/en not_active Expired - Lifetime
- 2003-12-03 DE DE60336447T patent/DE60336447D1/en not_active Expired - Lifetime
- 2003-12-04 CN CNB2003101188819A patent/CN1286599C/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1139241B (en) * | 1960-08-23 | 1962-11-08 | Juenkerather Maschbau Gmbh | Actuating device for the plug of a pouring ladle |
GB970513A (en) * | 1962-03-31 | 1964-09-23 | Junkerather Maschinenfabrik G | Means for operating the stoppers of casting ladles |
JPH04270049A (en) * | 1991-02-25 | 1992-09-25 | Sumitomo Metal Ind Ltd | Stopper device for continuous caster and controller for molten metal surface level |
US5674426A (en) * | 1995-03-28 | 1997-10-07 | Concast Standard Ag | Device for controlling an inflow of metal by means of a stopper |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 017, no. 059 (M - 1363) 5 February 1993 (1993-02-05) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3782748A1 (en) | 2019-08-20 | 2021-02-24 | Refractory Intellectual Property GmbH & Co. KG | Drive device for a stopper in a metallurgical vessel |
WO2021032354A1 (en) | 2019-08-20 | 2021-02-25 | Refractory Intellectual Property Gmbh & Co. Kg | Drive device for a stopper closure on a metallurgical vessel |
CN114258330A (en) * | 2019-08-20 | 2022-03-29 | 里弗雷克特里知识产权两合公司 | Drive device for plunger closure at a metallurgical vessel |
Also Published As
Publication number | Publication date |
---|---|
EP1426126B1 (en) | 2011-03-23 |
CN1286599C (en) | 2006-11-29 |
US20040108636A1 (en) | 2004-06-10 |
KR20040048843A (en) | 2004-06-10 |
FR2848131A1 (en) | 2004-06-11 |
DE60336447D1 (en) | 2011-05-05 |
FR2848131B1 (en) | 2006-01-06 |
KR101081950B1 (en) | 2011-11-09 |
ATE502708T1 (en) | 2011-04-15 |
CN1504286A (en) | 2004-06-16 |
US6960317B2 (en) | 2005-11-01 |
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