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EP0160593B1 - Apparatus for handling a protection pipe for a pouring jet - Google Patents

Apparatus for handling a protection pipe for a pouring jet Download PDF

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Publication number
EP0160593B1
EP0160593B1 EP85400580A EP85400580A EP0160593B1 EP 0160593 B1 EP0160593 B1 EP 0160593B1 EP 85400580 A EP85400580 A EP 85400580A EP 85400580 A EP85400580 A EP 85400580A EP 0160593 B1 EP0160593 B1 EP 0160593B1
Authority
EP
European Patent Office
Prior art keywords
carriage
fact
tube
shaft
arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85400580A
Other languages
German (de)
French (fr)
Other versions
EP0160593A1 (en
Inventor
Patrice Petracchi
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.)
Fives Cail Babcock SA
Original Assignee
Fives Cail Babcock SA
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 Fives Cail Babcock SA filed Critical Fives Cail Babcock SA
Priority to AT85400580T priority Critical patent/ATE27687T1/en
Publication of EP0160593A1 publication Critical patent/EP0160593A1/en
Application granted granted Critical
Publication of EP0160593B1 publication Critical patent/EP0160593B1/en
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
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles
    • B22D41/56—Means for supporting, manipulating or changing a pouring-nozzle

Definitions

  • the present invention relates to the handling of a protective tube for a pouring stream, with a view to placing said tube under the orifice of a container, such as a ladle containing molten metal.
  • This tube is intended to immerse in the metal. fusion contained in another container, such as a pouring distributor placed under the preceding container.
  • the handling device having all the characteristics of the preamble of claim 1 described in document FR-A-2,399,295 and which comprises a carriage movable along a horizontal track, a vertical barrel integral with said carriage and a carrying arm supported by said barrel and provided with means for gripping the protective tube has a limited radius of action and has only one degree of freedom in a horizontal plane.
  • the main object of the invention is to solve this problem by limiting human intervention to the sole final positioning of the tube and by making it possible to automate the various operations of the handling device.
  • a device for handling a tube protecting a casting jet in particular for applying said tube under the orifice of a molten metal casting ladle, or the '' removing therefrom, comprising a first carriage movable along a horizontal track, a vertical barrel integral with said carriage, an arm carrying the jet protection tube supported by said barrel and means for gripping the tube by the carrying arm, characterized in that it further comprises means for controlling the rotation of said barrel about its longitudinal axis, a second carriage movable vertically along the barrel under the action of drive means and a counterweight holding the second carriage in position when the drive means of said carriage have ceased to act, and in that the carrying arm is articulated to the second carriage by means of a connecting rod.
  • the connecting rod is provided with a locking system in position, said system being rendered inoperative after application of the tube under the ladle.
  • the locking system consists of two roller support arms arranged on either side of the connecting rod and controlled by jacks.
  • the support arm is mounted to rotate about its longitudinal axis, the drive means of said arm being mounted at the end of the latter, opposite to that which carries the tube.
  • the means for gripping the tube by the support arm consist of clamps, the means for driving said clamps being mounted at the end of the arm opposite to them.
  • the means for controlling the rotation of the barrel about its longitudinal axis comprise an orientation ring connecting the barrel to the first carriage.
  • the drive means of the second carriage in the vertical direction comprise a chain, one end of which is fixed to said carriage and the other to the counterweight, a return wheel of said chain and a geared motor group, the latter controlling the rotation of the idler wheel via a brake and a clutch.
  • the first carriage and all of the elements which are attached to it are mounted suspended.
  • the reference numeral 1 designates the tube for protecting a casting jet resting under a first container, such as a ladle 2.
  • This tube is intended to immerse in the molten metal collected by a second container, such as a continuous casting distributor 3, placed under the casting ladle 2.
  • a drawer system 4 makes it possible, on request, to authorize the flow or to interrupt it.
  • the tube 1 is held by a system of clamps 5 mounted at the end of a support arm 6.
  • a system of clamps 5 mounted at the end of a support arm 6.
  • it is essential to provide a certain number of movements: horizontal translation of the arm carrier 6, rotation of said carrier arm about a vertical axis, vertical translation of said carrier arm and possibly rotation of said carrier arm about its longitudinal axis.
  • It is also necessary to provide a means of controlling the clamp system 5 and degrees of freedom to collect the variations in position of the ladle 2, allow the opening or closing of the drawer system 4, and ensure the correct positioning of the tube 1 under the casting jet, more precisely under the nozzle 7 of the casting ladle 2.
  • the carrying arm 6, by means of a support box 8 and a connecting rod 19, is made integral with a carriage 9 vertically movable along a barrel 10 capable of being driven in rotation around its axis by an orientation ring 11, which is integral with a carriage 12, horizontally movable along a suspended track 13.
  • This mechanically welded construction carriage is a self-propelled carriage mounted on rollers, such as 14, rolling on the track 13.
  • the movement is controlled by a geared motor group 15 mounted on one end of the carriage 12 and which rotates the rollers 14 located at the other end of said carriage by a chain transmission 16.
  • the rotation of the support arm 6 around the axis of the barrel 10 is controlled by a geared motor group 17 secured to the carriage 12, by means of the slewing ring 11 interposed between the barrel 10 and the carriage 12.
  • the barrel 10 is provided with rails for guiding the vertical movement of the carriage 9 which will be discussed later.
  • a connecting rod 19 fixed to the carriage 9 supports the support box assembly 8 - carrier arm 6.
  • the assembly is locked, during handling, by means of two roller-carrying arms such as 20, which position the connecting rod 19 and therefore the support 8 and the support arm 6 in a predetermined position.
  • the control of the arms 20 is ensured by pneumatic cylinders such as 21.
  • the assembly being unlocked, during casting, two degrees of freedom are obtained for the movement of the drawer system 4, without any reaction on the other elements of the device. handling.
  • the movement is controlled by a geared motor unit 25 integral with the barrel 10 by means of a brake 26 and a clutch 27.
  • a geared motor unit 25 integral with the barrel 10 by means of a brake 26 and a clutch 27.
  • the rotation of the carrier arm 6 about its longitudinal axis is controlled by a geared motor group 28 via a wheel 29 and a chain 30.
  • the arm 6 is mounted on two rolling bearings, such as 31 , carried by the support box 8.
  • the control is provided with an angular play of ⁇ 5 ° relative to the vertical position of the tube 1. This results in an additional degree of freedom.
  • the invention therefore covers, in addition to the example illustrated, its various possible alternative embodiments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Pipe Accessories (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

An automated apparatus for manipulating a protective tube for a jet of a molten metal discharged from a tap hole of a casting ladle for selective movement of the protective tube under the tap hole and retraction therefrom, uses a first carriage displaceable along a horizontal track, a vertical shaft connected to the first carriage for displacement therewith and rotatable about its longitudinal axis, and a second carriage vertically displaceable along the shaft. A carrier arm for the tube is supported on the second carriage and a support case connects the carrier arm to the second carriage to allow horizontal movements of the carrier arm with respect to the second carriage. The carrier arm can be locked in a predetermined position with respect to the second carriage and is capable of gripping the tube.

Description

La présente invention concerne la manipulation d'un tube de protection d'un jet de coulée, en vue de disposer ledit tube sous l'orifice d'un récipient, tel qu'une poche de coulée contenant du métal fondu.The present invention relates to the handling of a protective tube for a pouring stream, with a view to placing said tube under the orifice of a container, such as a ladle containing molten metal.

Ce tube est destiné à plonger dans le métal en . fusion contenu dans un autre récipient, tel qu'un répartiteur de coulée disposé sous le récipient précédent.This tube is intended to immerse in the metal. fusion contained in another container, such as a pouring distributor placed under the preceding container.

Quelle que soit l'application envisagée, il est important de protéger le jet de l'oxydation que provoquerait son exposition à l'air pendant son passage du récipient supérieur au récipient inférieur.Whatever the application envisaged, it is important to protect the jet from oxidation that would cause its exposure to air during its passage from the upper container to the lower container.

Compte-tenu des conditions thermiques particulièrement sévères, de tels tubes s'usent assez rapidement. Il convient alors de remplacer un tube par un tube neuf ou par un tube simplement décrassé après un usage antérieur.Given the particularly severe thermal conditions, such tubes wear out fairly quickly. It is then advisable to replace a tube by a new tube or by a tube simply cleaned after a previous use.

Il est donc nécessaire de prévoir un manipulateur apte à desservir plusieurs postes: poste de service, poste de stockage des tubes neufs, poste de décrassage, notamment, tout en évitant une intervention humaine importante au dessous de la poche de coulée. Il faut aussi prévoir des degrés de liberté pour encaisser les variations de position de la poche de coulée et permettre l'ouverture ou la fermeture du système à tiroir fermant l'orifice de la poche.It is therefore necessary to provide a manipulator capable of serving several stations: service station, storage station for new tubes, cleaning station, in particular, while avoiding significant human intervention below the ladle. It is also necessary to provide degrees of freedom to accommodate variations in the position of the ladle and allow the opening or closing of the drawer system closing the orifice of the ladle.

Les manipulateurs usuels ne répondent pas à toutes ces exigences. En particulier, le dispositif de manipulation ayant toutes les caractérisiques du préambule de la revendication 1 décrit dans le document FR-A-2.399.295 et qui comprend un chariot déplaçable le long d'une voie horizontale, un fût vertical solidaire dudit chariot et un bras porteur supporté par ledit fût et muni de moyens de prise du tube de protection a un rayon d'action limité et possède un seul degré de liberté dans un plan horizontal.The usual manipulators do not meet all these requirements. In particular, the handling device having all the characteristics of the preamble of claim 1 described in document FR-A-2,399,295 and which comprises a carriage movable along a horizontal track, a vertical barrel integral with said carriage and a carrying arm supported by said barrel and provided with means for gripping the protective tube has a limited radius of action and has only one degree of freedom in a horizontal plane.

L'invention a surtout pour but de résoudre ce problème en limitant l'intervention humaine au seul positionnement final du tube et en rendant possible l'automatisation des diverses opérations du dispositif de manipulation.The main object of the invention is to solve this problem by limiting human intervention to the sole final positioning of the tube and by making it possible to automate the various operations of the handling device.

Elle a plus précisément pour objet un dispositif de manipulation d'un tube de protection d'un jet de coulée, notamment en vue d'appliquer ledit tube sous l'orifice d'une poche de coulée d'un métal fondu, ou de l'en retirer, comprenant un premier chariot déplaçable le long d'une voie horizontale, un fût vertical solidaire dudit chariot, un bras porteur du tube de protection du jet supporté par ledit fût et des moyens de prise du tube par le bras porteur, caractérisé en ce qu'il comprend en outre des moyens pour commander la rotation dudit fût autour de son axe longitudinal, un deuxième chariot dèplaçable verticalement le long du fût sous l'action de moyens d'entrainement et un contrepoids maintenant le deuxième chariot en position lorsque les moyens d'entrainement dudit chariot ont cessé d'agir, et en ce que le bras porteur est articulé au deuxième chariot au moyen d'une bielle.More specifically, it relates to a device for handling a tube protecting a casting jet, in particular for applying said tube under the orifice of a molten metal casting ladle, or the '' removing therefrom, comprising a first carriage movable along a horizontal track, a vertical barrel integral with said carriage, an arm carrying the jet protection tube supported by said barrel and means for gripping the tube by the carrying arm, characterized in that it further comprises means for controlling the rotation of said barrel about its longitudinal axis, a second carriage movable vertically along the barrel under the action of drive means and a counterweight holding the second carriage in position when the drive means of said carriage have ceased to act, and in that the carrying arm is articulated to the second carriage by means of a connecting rod.

La bielle est munie d'un système de verrouillage en position, ledit système étant rendu inopérant après application du tube sous la poche de coulée.The connecting rod is provided with a locking system in position, said system being rendered inoperative after application of the tube under the ladle.

Le système de verrouillage est constitué par deux bras porte-galets disposés de part et d'autre de la bielle et commandés par des vérins.The locking system consists of two roller support arms arranged on either side of the connecting rod and controlled by jacks.

Le bras porteur est monté rotatif autour de son axe longitudinal, les moyens d'entrainement dudit bras étant montés à l'extrémité de celui-ci, opposée à celle qui porte le tube. Les moyens de prise du tube par le bras porteur sont constitués par des pinces, les moyens d'entrainement desdites pinces étant montés à l'extrémité du bras opposée à celles-ci.The support arm is mounted to rotate about its longitudinal axis, the drive means of said arm being mounted at the end of the latter, opposite to that which carries the tube. The means for gripping the tube by the support arm consist of clamps, the means for driving said clamps being mounted at the end of the arm opposite to them.

Les moyens pour commander la rotation du fût autour de son axe longitudinal comprennent une couronne d'orientation reliant le fût au premier chariot.The means for controlling the rotation of the barrel about its longitudinal axis comprise an orientation ring connecting the barrel to the first carriage.

Les moyens d'entrainement du deuxième chariot dans le sens vertical, comprennent une chaine dont une extrémité est fixée audit chariot et l'autre au contrepoids, une roue de renvoi de ladite chaine et un groupe moto-réducteur, ce dernier commandant la rotation de la roue de renvoi par l'intermédiaire d'un frein et d'un embrayage.The drive means of the second carriage in the vertical direction, comprise a chain, one end of which is fixed to said carriage and the other to the counterweight, a return wheel of said chain and a geared motor group, the latter controlling the rotation of the idler wheel via a brake and a clutch.

D'une façon particulièrement avantageuse, le premier chariot et l'ensemble des éléments qui y sont rattachés sont montés suspendus.In a particularly advantageous manner, the first carriage and all of the elements which are attached to it are mounted suspended.

L'invention sera mieux comprise en se référant à la description qui suit, faite en regard des dessins annexés, concernant une forme particulière de réalisation donnée à titre d'exemple non-limitatif.

  • La figure 1 est une vue de face en élévation du dispositif.
  • La figure 2 en est une vue en coupe suivant la ligne A-A de la figure 1.
  • La figure 3 en est une vue de côté.
The invention will be better understood by referring to the description which follows, given with reference to the appended drawings, concerning a particular embodiment given by way of non-limiting example.
  • Figure 1 is a front elevational view of the device.
  • Figure 2 is a sectional view along line AA of Figure 1.
  • Figure 3 is a side view.

Sur les figures, le repère 1 désigne le tube de protection d'un jet de coulée en appui sous un premier récipient, tel qu'une poche de coulée 2. Ce tube est destiné à plonger dans le métal fondu recueilli par un deuxième récipient, tel qu'un répartiteur de coulée continue 3, disposé sous la poche de coulée 2. Un système à tiroir 4 permet, à la demande, d'autoriser l'écoulement ou de l'interrompre.In the figures, the reference numeral 1 designates the tube for protecting a casting jet resting under a first container, such as a ladle 2. This tube is intended to immerse in the molten metal collected by a second container, such as a continuous casting distributor 3, placed under the casting ladle 2. A drawer system 4 makes it possible, on request, to authorize the flow or to interrupt it.

Le tube 1 est tenu par un système de pinces 5 montées à l'extrémité d'un bras porteur 6. En vue de procéder au remplacement d'un tube 1, il est indispensable de prévoir un certain nombre de mouvements: translation horizontale du bras porteur 6, rotation dudit bras porteur autour d'un axe vertical, translation verticale dudit bras porteur et éventuellement rotation dudit bras porteur autour de son axe longitudinal. Il faut aussi prévoir un moyen de commande du système de pinces 5 et des degrés de liberté pour encaisser les variations de position de la poche de coulée 2, permettre l'ouverture ou la fermeture du système à tiroir 4, et assurer le bon positionnement du tube 1 sous le jet de coulée, plus précisément sous la busette 7 de la poche de coulée 2.The tube 1 is held by a system of clamps 5 mounted at the end of a support arm 6. In order to replace a tube 1, it is essential to provide a certain number of movements: horizontal translation of the arm carrier 6, rotation of said carrier arm about a vertical axis, vertical translation of said carrier arm and possibly rotation of said carrier arm about its longitudinal axis. It is also necessary to provide a means of controlling the clamp system 5 and degrees of freedom to collect the variations in position of the ladle 2, allow the opening or closing of the drawer system 4, and ensure the correct positioning of the tube 1 under the casting jet, more precisely under the nozzle 7 of the casting ladle 2.

A cet effet, le bras porteur 6, par l'intermédiaire d'un caisson support 8 et d'une bielle 19, est rendu solidaire d'un chariot 9 verticalement déplaçable le long d'un fût 10 apte à être entrainé en rotation autour de son axe par une couronne d'orientation 11, laquelle est solidaire d'un chariot 12, horizontalement déplaçable le long d'une voie suspendue 13.To this end, the carrying arm 6, by means of a support box 8 and a connecting rod 19, is made integral with a carriage 9 vertically movable along a barrel 10 capable of being driven in rotation around its axis by an orientation ring 11, which is integral with a carriage 12, horizontally movable along a suspended track 13.

On va maintenant décrire plus en détail le dispositif de manipulation ainsi constitué, en référence aux différents mouvements à assurer.We will now describe in more detail the handling device thus formed, with reference to the various movements to be ensured.

La translation horizontale du bras porteur 6 est obtenue grâce au chariot 12. Ce chariot de construction mécano-soudée est un chariot automoteur monté sur des galets, tels que 14, roulant sur la voie 13. Le déplacement est commandé par un groupe moto-réducteur 15 monté sur l'une des extrémités du chariot 12 et qui entraine en rotation les galets 14 situés à l'autre extremité dudit chariot par une transmission par chaine 16.The horizontal translation of the carrying arm 6 is obtained thanks to the carriage 12. This mechanically welded construction carriage is a self-propelled carriage mounted on rollers, such as 14, rolling on the track 13. The movement is controlled by a geared motor group 15 mounted on one end of the carriage 12 and which rotates the rollers 14 located at the other end of said carriage by a chain transmission 16.

La rotation du bras porteur 6 autour de l'axe du fût 10 est commandée par un groupe moto- réducteur 17 solidaire du chariot 12, par l'intermédiaire de la couronne d'orientation 11 interposée entre le fût 10 et le chariot 12. Le fût 10 est muni de rails de guidage du déplacement vertical du chariot 9 dont il sera parlé plus loin. Une bielle 19 fixée sur le chariot 9 supporte l'ensemble caisson support 8 -bras porteur 6. L'ensemble est verrouillé, au cours d'une manipulation, par l'intermédiaire de deux bras porte-galets tels que 20, qui positionnent la bielle 19 et par conséquent le support 8 et le bras porteur 6 dans une position prédéterminée. La commande des bras 20 est assurée par des vérins pneumatiques tels que 21. L'ensemble étant déverrouillé, pendant la coulée, on obtient deux degrés de liberté pour le déplacement du système à tiroir 4, sans aucune réaction sur les autres éléments du dispositif de manipulation.The rotation of the support arm 6 around the axis of the barrel 10 is controlled by a geared motor group 17 secured to the carriage 12, by means of the slewing ring 11 interposed between the barrel 10 and the carriage 12. The barrel 10 is provided with rails for guiding the vertical movement of the carriage 9 which will be discussed later. A connecting rod 19 fixed to the carriage 9 supports the support box assembly 8 - carrier arm 6. The assembly is locked, during handling, by means of two roller-carrying arms such as 20, which position the connecting rod 19 and therefore the support 8 and the support arm 6 in a predetermined position. The control of the arms 20 is ensured by pneumatic cylinders such as 21. The assembly being unlocked, during casting, two degrees of freedom are obtained for the movement of the drawer system 4, without any reaction on the other elements of the device. handling.

La translation verticale du bras porteur 6 est, bien entendu, assurée par le chariot 9. Ledit chariot est retenu par une chaine 22, passant autour d'une roue 23 et dont l'autre extrémité est fixée à un contrepoids 24.The vertical translation of the carrying arm 6 is, of course, ensured by the carriage 9. Said carriage is retained by a chain 22, passing around a wheel 23 and the other end of which is fixed to a counterweight 24.

Le déplacement est commandé par un groupe moto-réducteur 25 solidaire du fût 10 par l'intermédiaire d'un frein 26 et d'un embrayage 27. Au cours d'une coulée, le système est mis en position de débrayage et le tube 1 s'applique sur la busette 7 avec un effort du à la séule charge du contrepoids 24. D'où un nouveau degré de liberté.The movement is controlled by a geared motor unit 25 integral with the barrel 10 by means of a brake 26 and a clutch 27. During a casting operation, the system is put in the declutching position and the tube 1 is applied to the nozzle 7 with an effort due to the willow load of the counterweight 24. Hence a new degree of freedom.

La rotation du bras porteur 6 autour de son axe longitudinal est commandée par un groupe moto- réducteur 28 par l'intermédiaire d'une roue 29 et d'une chaine 30. Le bras 6 est monté sur deux paliers à roulement, tels que 31, portés par le caisson support 8. La commande est prévue avec un jeu angulaire de ± 5° par rapport à la position verticale du tube 1. Il en résulte un degré de liberté supplémentaire.The rotation of the carrier arm 6 about its longitudinal axis is controlled by a geared motor group 28 via a wheel 29 and a chain 30. The arm 6 is mounted on two rolling bearings, such as 31 , carried by the support box 8. The control is provided with an angular play of ± 5 ° relative to the vertical position of the tube 1. This results in an additional degree of freedom.

Un vérin 32 monté à l'extrémité du bras porteur 6 opposée à celle qui est munie des pinces 5 commande l'ouverture et la fermeture de ces dernières par une tringle 33.A jack 32 mounted at the end of the carrying arm 6 opposite to that which is provided with the clamps 5 controls the opening and closing of the latter by a rod 33.

On voit que les moyens que l'on vient de décrire permettent d'assurer la desserte des différents postes dont il est parlé plus haut. Seui le positionnement final de tube de coulée nécessite une très courte intervention humaine. Toutes les autres opérations peuvent être rendues entièrement automatiques. Dans la mesure où il est possible, pour effectuer une manipulation, de soulever de manière suffisante la poche de coulée 2, la rotation du bras 6 qui provoque le basculement du tube 1, peut être évitée.It can be seen that the means that have just been described make it possible to provide service to the various stations mentioned above. Only the final positioning of the pouring tube requires a very short human intervention. All other operations can be made fully automatic. Insofar as it is possible, to carry out a manipulation, to raise the ladle 2 sufficiently, the rotation of the arm 6 which causes the tube 1 to tip over, can be avoided.

Bien que l'invention ait été décrite en référence à une forme particulière de réalisation, il va de soi qu'elle n'y est en rien limitée et que des modifications peuvent lui être apportées sans sortir de son domaine.Although the invention has been described with reference to a particular embodiment, it goes without saying that it is in no way limited thereto and that modifications can be made to it without departing from its field.

On pourra, bien entendu, remplacer l'un quelconque des moyens décrits par des moyens techniquement équivalents.We can, of course, replace any of the means described by technically equivalent means.

L'invention couvre donc, outre l'exemple illustré, ses différentes variantes de réalisation possibles.The invention therefore covers, in addition to the example illustrated, its various possible alternative embodiments.

Claims (8)

1. Apparatus for handling a protection pipe (1) for a pouring jet, particularly for applying the said pipe below the opening of a casting ladle (2) of molten metal, or for withdrawing it, including a first carriage (12) movable along a horizontal track (13), a vertical shaft (10), integral with the said carriage, a support arm (6) for the jet protection pipe (1) supported by the said shaft and tube taking means on the support arm (6), characterized by the fact that it also includes means for rotating the said shaft around its longitudinal axis, a second carriage (9) movable vertically along the shaft (10) when actuated by driving means, and a counterweight (24) which maintains the second carriage (2) in position when the driving means of the said carriage have stopped acting, and by the fact that the support arm (6) is hinged to the second carriage (9) by means of a rod (19).
2. Apparatus according to claim 1, characterized by the fact that the rod (19) is fitted with a position locking system, the said system being made inoperative after the tube (1) has been applied below the casting ladle (2).
3. Apparatus according to claim 2, characterized by the fact that the locking system consists of two roller supporting arms (20) arranged on each side of the rod (19) and driven by cylinder jacks (21).
4. Apparatus according to claim 1, characterized by the fact that the support arm (6) rotates around its longitudinal axis, the means (28, 29, 30) of rotating the said arm being mounted at the end of the latter opposite the end which supports the tube (1).
5. Apparatus according to claim 1, characterized by the fact that the tube taking means on the support arm (6) consists of two clamps (5), the means of actuating the said clamps being mounted at the end of the arm (6) opposite to the clamps.
6. Apparatus according to claim 1, characterized by the fact that the means of rotating the shaft (10) around its longitudinal axis includes a slewing girthgear wheel (11) which connects the shaft to the first carriage (12).
7. Apparatus according to claim 1, characterized by the fact that the means for driving the second carriage (9) in a vertical direction includes a chain (22) one end of which is attached to the said carriage and the other to the counterweight (24), a return wheel (23) of the said chain, and a geared motor, (25), the latter controlling the rotation of the return wheel (23) through a brake (26) and a clutch (27).
8. Apparatus according to any of the preceding claims, characterized by the fact that the first carriage (12) and all the components attached to it are hanging.
EP85400580A 1984-04-04 1985-03-26 Apparatus for handling a protection pipe for a pouring jet Expired EP0160593B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85400580T ATE27687T1 (en) 1984-04-04 1985-03-26 DEVICE FOR HANDLING A PROTECTIVE TUBE FOR A STREAM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8405287A FR2562448B1 (en) 1984-04-04 1984-04-04 DEVICE FOR HANDLING A TUBE FOR PROTECTING A CASTING JET
FR8405287 1984-04-04

Publications (2)

Publication Number Publication Date
EP0160593A1 EP0160593A1 (en) 1985-11-06
EP0160593B1 true EP0160593B1 (en) 1987-06-10

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EP85400580A Expired EP0160593B1 (en) 1984-04-04 1985-03-26 Apparatus for handling a protection pipe for a pouring jet

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US (1) US4643339A (en)
EP (1) EP0160593B1 (en)
AT (1) ATE27687T1 (en)
DE (1) DE3560229D1 (en)
FR (1) FR2562448B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Also Published As

Publication number Publication date
FR2562448B1 (en) 1986-07-04
DE3560229D1 (en) 1987-07-16
US4643339A (en) 1987-02-17
ATE27687T1 (en) 1987-06-15
EP0160593A1 (en) 1985-11-06
FR2562448A1 (en) 1985-10-11

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