DE1558210C3

DE1558210C3 - Support or transport rollers in front of a device for continuous casting plants

Info

Publication number: DE1558210C3
Application number: DE19671558210
Authority: DE
Inventors: Hans Georg Dr.-Ing. Baumann; Wilhelm Koch
Original assignee: Demag AG
Current assignee: Mannesmann Demag AG
Priority date: 1967-03-07
Filing date: 1967-03-07
Publication date: 1973-10-11
Also published as: DE1558210B2; DE1558210A1

Description

Strangverdickung etwa entsteht keine größere Treibkraft an dieser Stelle. Die Erfindung gewährleistet somit auch die Abstimmung der Treibkräfte.Thickening of the strand, for example, does not create a greater driving force at this point. The invention ensures thus also the coordination of the driving forces.

Vorteilhafterweise ist das Gelenk nach der weiteren Erfindung mit einer Geradführung versehen. In diesem Fall ist jeweils einer Schwenkbewegung des Jochs die geradlinige Bewegung überlagert und deshalb sind klare Bewegungsverhältiiisse geschaffen, die mit einfachen Mitteln erzielt sind. Es können auch andere von der Geraden geringfügig abweichende Führungen, z. B. leicht gebogene Führungen, verwendet werden. Insofern tritt dann je nach Kurvenform eine kurzfristige Veränderung der Antriebskräfte bzw. der Anstellkräfte auf. Inwieweit derartige veränderliche Kräfte zugelassen werden können, bestimmt der Walzenabstand.According to the further invention, the joint is advantageously provided with a straight guide. In In this case, the straight-line movement is superimposed on a pivoting movement of the yoke and therefore clear movement conditions are created that can be achieved with simple means. It can also other guides that differ slightly from the straight line, e.g. B. slightly curved guides are used will. In this respect, depending on the shape of the curve, there is a short-term change in the driving forces or the employees. The extent to which such variable forces can be allowed is determined the roller spacing.

In weiterer Verbesserung der Erfindung ist vorgesehen, daß beide Walzen einzeln angetrieben oder über einen am Joch gelagerten gemeinsamen Motor antreibbar sind. Die Synchronisation der Antriebe kann beispielsweise elektrisch erfolgen oder aber auch durch mechanische Verbindungsglieder, so daß noch kleinere Motoreinheiten entstehen.In a further improvement of the invention it is provided that both rollers are driven or individually can be driven via a common motor mounted on the yoke. The synchronization of the drives can for example be done electrically or by mechanical connecting links, so that even smaller motor units are created.

Nach einer weiteren Ausgestaltungsform der Erfindung sind bei Anwendung antriebsloser Walzen an der anderen Strangseite unverstellbare, einzeln angetriebene Walzen vorgesehen. In diesem Fall benötigt man nur den Stellantrieb zum Anstellen. Wenn auch dann eine besonders kompakte Bauweise geschaffen ist, erreicht man dieses Ziel auch bei angetriebenen Walzen, weil in keinem Fall mehr umfangreiche Antriebsmaschinen notwendig sind, insbesondere im Hinblick darauf, wenn die vorliegende Erfindung in Verbindung mit den erwähnten älteren, veröffentlichten Erfindungsvorschlägen gebracht wird.According to a further embodiment of the invention, driveless rollers are used when using the other side of the strand non-adjustable, individually driven rollers are provided. Needed in this case you only have to turn the actuator on. Even if a particularly compact design was created is, this goal can also be achieved with driven rollers, because in no case more extensive drive machines are necessary, particularly in view of when the present invention is in Connection with the mentioned older, published invention proposals is brought.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt und im folgenden näher erläutert:In the drawing, an embodiment of the invention is shown schematically and in the following explained in more detail:

F i g. 1 stellt den Erfindungsgegenstand in Betriebslage von der Seite betrachtet dar;F i g. 1 shows the subject matter of the invention viewed from the side in the operating position;

F i g. 2 ist die Rück- oder Frontansicht in Stranglaufrichtung gesehen.F i g. 2 is the rear or front view seen in the strand running direction.

ίο Der Gießstrang 1 liegt auf den angetriebenen Walzen! und 3, die in einem in Fig. 2 gezeichneten Gehäuse 4 ihre Lagerung besitzen. Sie sind angetrieben, was durch das Sinnbild der ausgeschwärzten Quadranten in einem konzentrischen Kreis angegeben ist.ίο The cast strand 1 lies on the driven rollers! and 3, which have their bearings in a housing 4 shown in FIG. You are driven which is indicated by the symbol of the blackened out quadrants in a concentric circle is.

Die Oberwalzen S und 6 liegen in weiter nicht ausführlich dargestellten Drehlagern 7 und 8. Letztere trägt das Joch 9. Am Joch 9 befindet sich mittig zwischen den Walzen 5 und 6 das Drehgelenk 10 mit dem Drehbolzen 11 (F i g. 2). Die Walzen 5 und 6 sind mit gleichem Durchmesser gezeichnet; wenn ein Ausgleich von unterschiedlichen Antriebskräften in feiner Abstufung vorgenommen werden soll, können die Durchmesser analog dem Walzenabstand und der auf diesem Weg eintretenden Strangquerschnittsänderung aber auch unterschiedlichen Durchmesser aufweisen.The top rollers S and 6 are located in pivot bearings 7 and 8, which are not shown in detail. The latter carries the yoke 9. On the yoke 9, the swivel joint 10 is located centrally between the rollers 5 and 6 the pivot pin 11 (FIG. 2). The rollers 5 and 6 are drawn with the same diameter; when a Compensation of different driving forces should be made in fine gradation, can the diameter analogous to the roller spacing and the change in strand cross-section occurring on this path but also have different diameters.

Der Drehbolzen 11 ,liegt mit seinen Enden in Geradschubführungen 12 und 13. In der Art einer Pleielstangenlagerung ist auch die Schubstange 14 des Kolbentriebwerkes 15 ausgeführt. Die Lagerung des Stelltriebs 14, 15 stellt ein am Hallengerüst 16 befestigter Flansch 17 dar.The pivot pin 11 lies with its ends in straight thrust guides 12 and 13. In the manner of a Pleielstangenlagerung is also the push rod 14 of the Piston engine 15 executed. The mounting of the actuating drive 14, 15 is a fixed to the hall frame 16 Flange 17.

Hierzu 1 Blatt Zeichnungen 1 sheet of drawings

Claims

1 2 press the yoke against the strand with the rollers. Claims: The adjustment force is therefore dependent on the adjustment of both adjusting drives. In this respect, the present

1. Support or transport roller device lowing invention of a modified execution for continuous casting, consisting of with the help of 5 shape of the yoke.

of power-operated actuators against one According to an also older proposal (German Roll side pressable rollers, which are attached to a Auslegeschrift 1 290 668) both several Yoke with articulated drive rollers parallel to the roller axes as well as a whole group of straightening axes are rotatably mounted, and arranged on the other rollers huddled together on the strand Strand side fixedly mounted rollers, d a - io be. One pursues the benefit with it, one since then characterized in that the middle only large driving force in several smaller parts Split yoke (9) with the actuator (14, 15) by forces to the strand of a possible a joint (10, 11) is connected. to undergo gentle treatment.

2. Apparatus according to claim 1, characterized by another older proposal (German indicates that the joint (10, 11) with a patent specification 1 288 250) is a careful strand straight line (12, 13) is provided. striving for extension, with several lower rollers

3. Device according to claim 1, characterized in the turning point area of the arc to the horizon, that the two rollers (5, 6) are provided. So they crowd there too zein driven or via a rotary actuator and actuating drive close together on the yoke (9), if the stored common motor can be driven. 20 Principle of splitting forces into several individual forces

4. Device according to claims 1 and 3, is to be used. The same goes for a characterized in that when using an alignment route on which a large number of such Driveless rollers (5, 6) are used on the other strand roller pairs.

side non-adjustable, individually driven rollers It is also from the Austrian patent

(2, 3) are provided. 25 229 503 known at the end of a straightening section that

is formed from several pairs of rollers with individual adjustment of the top rollers, two rollers on one

Arrange yoke and a single drive to

Provision of the rollers in the form of a hydraulic piston 30 ben-engine. This becomes a

The invention relates to a support or transport drive drive for the second roller saved, however roller device for continuous casting plants, best - an unsafe application of force to a single hand from roller effected with the help of power-operated adjusting drives. A big and uncomfortable proposition a strand side pressable rollers, which provides to blem with successive drive or a yoke with drive rollers which are parallel to the roller axes and which are interdependent The steering axles are rotatably mounted, and on the other, values of driving force and contact pressure are shown. Roll side fixedly mounted rollers. If independently adjustable back-up rolls are too hard

Up to now, such rolls have been pressed onto the strand on one machine, so they form one nengestell stored, which either brake itself the drive, the opposite driven rollers a as flange motors or generates 40 differential force via cardan shafts, so that the strand of the is supplied by a remote motor. Drive rollers pulled and placed in the straightening rollers Rotary drives show the machines that the upset is taking place. In and of itself, the hot actuator suffers on. Viewed overall, the pull-out force already results in an inner and each individual roller station with a pair of rollers, external deformation, in particular consisting at right angles to the strand consisting of a roller and an opposing roller, in a running direction, however, this complicates the uncertain ver-strand point a spatially rather extensive proportion of the driving and supporting force relations machine. If the strand pulling machine from several load sizes only more, ren roller pairs should exist, one moves the roller The present invention is the task of

Zen couples more and more together. The efforts are founded, at the same time with a compact construction according to the transmission technically flawless construction 50 the problem of the dependency on support or and after an arrangement that is favorable in terms of continuous casting technology, the driving force between two successive Wallassen does not always dissolve in the desired one at the same time.

unite perfection. While with some of the invention is mentioned in the introduction

Like effort, the demands for Gießstrangge- support or transport roller device to this pre-right Contact pressure can be met, remain struck 55 that the center of the yoke with the other Requirements, such as tight construction drives, are connected by a joint. The two wise, application of as few drive motors as possible are therefore such on the common yoke gates or those with a large work area and hung that in addition to the common staff Lifetime at least partially unfulfilled. by virtue of an on-particular independent of the second roller must be given a great deal of effort driven 60 adjusting force of the first roller or vice versa be to the synchronous drive for top and is. The joint contact force is distributed depending on the To secure lower roller of a pair of rollers. Position of the yoke largely uniform. The dependent

According to an older proposal (German patent validity of the employees is therefore given. Simultaneous 1 281 116) is already planned, but the independence of the approach paths is also important a yoke to be arranged rotatably, with the 65 available.

Roll axes, the joint axes run parallel. While irregularities in the upper strand

At each end of the yoke, an actuator surface is passed under a roller, the position remains those who are aged individually or together, to the other roller unaffected. By a