EP1708831A1 - Multi-part roll stand for edgers in rolling mills - Google Patents

Multi-part roll stand for edgers in rolling mills

Info

Publication number
EP1708831A1
EP1708831A1 EP04790764A EP04790764A EP1708831A1 EP 1708831 A1 EP1708831 A1 EP 1708831A1 EP 04790764 A EP04790764 A EP 04790764A EP 04790764 A EP04790764 A EP 04790764A EP 1708831 A1 EP1708831 A1 EP 1708831A1
Authority
EP
European Patent Office
Prior art keywords
crosshead
stand according
screws
cross
longitudinal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04790764A
Other languages
German (de)
French (fr)
Other versions
EP1708831B1 (en
Inventor
Jochen MÜNKER
Hendrik Langer
Stefan Wendt
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
Original Assignee
SMS Demag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1708831A1 publication Critical patent/EP1708831A1/en
Application granted granted Critical
Publication of EP1708831B1 publication Critical patent/EP1708831B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers

Definitions

  • the invention relates to a roll stand for upsetting stands in rolling mills, which is designed in several parts and consists of main components, such as, for example, crossheads and longitudinal spars, which are connected to one another by means of screws.
  • Roller stands for upsetting stands are mostly cast structures to accommodate the assemblies required for the upsetting process, such as for adjustment, balancing, upsetting roller set, gear, motor and the like. like.
  • the cast structures are known in a two-part design, in which the roller stand has a horizontal parting line and both halves are connected in a form-fitting manner, for example by means of a shrink ring.
  • the invention has for its object to improve compression structures of the multi-part design such that the constriction of the stand window, the loading drive load and the impact force (maximum horizontal force under which the rolling stock is conveyed against the closed rolls of a vertical stand) are better taken into account.
  • a common connection point for the crosshead and the longitudinal spars is provided in a cross shape at the upper and lower longitudinal spar ends, at least Prestressed through-bolts acting as articulations are used at the upper longitudinal beam ends.
  • These preloaded through bolts ensure a permanently secure connection with a high preload. On the one hand, this means that the additional screw force remains relatively low compared to the pre-tensioning force, and on the other hand, gaping or breathing of parting lines is avoided.
  • the articulated connection by pretensioning also causes a smaller constriction of the stator window under load compared to a comparable, only two-part compression frame.
  • the special cross shape at the longitudinal spar ends optimizes the tension level and the stress curve in the longitudinal spars and / or the crosshead.
  • Replicas based on the finite element method have provided evidence of these findings.
  • an optimum for the screw pretension can be found, in which the design-related bore in the crosshead for receiving the adjusting device for the tool is not significantly deformed in accordance with tighter tolerances.
  • the crossheads are each made in one piece and can each be attached to a sole plate.
  • the crossheads form a connection with the longitudinal bars and form a bond with the prestressed through bolts.
  • the manufacture of the roll stand is also favorably influenced by the fact that at least the crossheads and the longitudinal bars are each made of cast materials.
  • the statics is also supported by the fact that the through screws are arranged in pairs symmetrically to the center plane.
  • bolts are provided in pairs symmetrically to the center plane.
  • a further embodiment consists in that the longitudinal spars are fastened in the respective crosshead via the cross shape, the through screws and the screw bolts.
  • the bolts can be screwed into threaded blind holes in the crosshead and arranged towards the outside of the roll stand.
  • connection between crosshead and longitudinal spars are preferably formed in such a way that a cross-shaped pocket is provided in the crosshead, into which an internal spring shape and an external spring shape engage.
  • the dimensions of the spring shapes are based on the design requirements of the crosshead and are of a size that allows the preloaded through screws to be inserted through two longitudinal bars each past the internals in the crosshead.
  • the outer cross leg or the inner cross leg each form a groove shape or a tongue shape, which fit into each other when facing each other.
  • This groove shape and the tongue shape are embedded in the matching cross-shaped pocket of the crosshead, which in turn is the has the corresponding groove shape and tongue shape and thus form a positive connection between crosshead and longitudinal spars.
  • the cross-sectional profile of the longitudinal spar transversely to the cross legs in the form of a tongue or groove or to the pocket in the crosshead depends on the specific loads on the compression frame with regard to the operating force and impact force and is of different sizes over the length of the longitudinal spar.
  • the cross section essentially follows the shape of a beam of the same stress.
  • the cross-sectional transitions in the crosshead and / or in the longitudinal spars are provided with adapted large radii in accordance with the operating force and an impact force. This ensures an even voltage curve.
  • the cross-shaped pockets of the crosshead and the cross-shaped spring forms of the respective longitudinal spar ends are provided with chamfers.
  • the chamfers can be filled with sealants, e.g. silicone. This prevents dirt, water and other foreign substances from entering.
  • the screw bolts are also designed as expansion screws and, like the through screws, have a heating hole, threaded ends and centering lugs to facilitate assembly. All through bolts and bolts are equipped with a longer thread end, which allows pulling and controlled tightening with appropriate pretensioning tools, which ensures reliable control of the pretensioning force.
  • a modification of the design described above can be created in that the crosshead is separated into a crosshead upper part and a crosshead lower part and the upper part and lower part by means of a shrink ring, a flange connection or an intermediate piece are connected to one another.
  • FIG. 3 shows a single longitudinal spar in a perspective view
  • FIG. 4 shows a section B-B in the upper part in a front plane and a section C-C in the lower part in a rear plane according to FIG. 1,
  • 5A is a view of the cross shape in the crosshead
  • FIG. 5B shows a side view of FIG. 5A
  • FIG. 66 shows a partial section through the end of a longitudinal spar
  • FIG. 7 is a plan view in the direction “A” (FIG. 6) of the cross shape in the longitudinal spar,
  • Fig. 8 is a view of a through screw
  • Fig. 9 is a view of a screw bolt.
  • the main components 1 consist of two crossheads 1a and 1b and four longitudinal spars 4a and 4b. At the transition to a crosshead 1a, 1b, connection points 3 with covering parts 3a are formed.
  • a cross shape 7 of cross legs 11 or spring shapes 19 is formed on the respective longitudinal spar end 6.
  • the longitudinal beam end 6 is connected via the cross shape 7 to the crossheads 1a, 1b by means of screw bolts 10.
  • tools such as, for example, upsetting roller pairs or press blocks, etc. Like. Be installed.
  • FIG. 2 a cross-shaped pocket 12, cross-sectional transitions 2a and an internal groove shape 13a and an external groove shape 13b are easily recognizable on the crosshead 1a, 1b.
  • the main component 1 consists of the longitudinal spar 4a, 4b.
  • the longitudinal beam ends 6 each have a spring shape 19 arranged in a cross shape 7 with external cross legs 13, internal groove shapes 13a, external groove shapes 13b and cross leg 11, which are provided with cross-sectional transitions 2b and bores 18 in the longitudinal beam 4a, 4b.
  • the crossheads 1a, 1b are fastened below the crosshead 8 on the soleplate and the connection points 3 through the cross shape 7 result according to FIGS. 4, 5A and 5B as follows:
  • the through screws 5 (Fig. 4, upper part) connect a crosshead 1a; 1b each with longitudinal bars 4a and 4b.
  • the bolts 10 (lower part of FIG. 4) connect a crosshead 1a, 1b to the longitudinal bars 4a, 4b and are each screwed into a threaded blind hole in the crosshead 1a, 1b.
  • the crosshead 1a, 1b (FIGS. 5A and 5B) forms a connection by positive locking with the longitudinal bars 4a, 4b and together with the through screws 5 and the screw bolts 10.
  • the through screws 5 and the bolts 10 are arranged in pairs symmetrically to the center plane 9.
  • a pocket 12 and an outer cross leg 11 are provided, which form the cross shape 7 and the respective spring shapes 19a, external spring shapes 19b of the longitudinal spar 4a, 4b (or pockets 12 of the crosshead 1a , 1 b) interact and form the positive connection.
  • the cross-shaped inside (or outside) spring form 19a and an outside (or inside) spring form 19b are arranged.
  • Cross-shaped pockets 12 can also be provided only in the crosshead 1a, 1b, in which the cross-shaped spring forms 19a, 19b of the longitudinal spars 4a, 4b engage.
  • chamfers 14 are chamfered or chamfered.
  • the chamfers 14 can be filled with sealants, such as silicone, which prevent the ingress of dirt and / or water or other foreign substances.
  • the bolts 10 can also be designed like the through screw 5 as an expansion screw (FIGS. 8 and 9) and have heating holes 15, two Thread ends 16, a centering shoulder 17 and run through the holes 18th
  • the crosshead 1a, 1b is separated into a crosshead upper part 1c and a crosshead lower part 1d (FIG. 4) and upper part 1c and lower part 1d are connected to one another by means of a shrink ring (not shown), a flange connection or an intermediate piece.

Abstract

A roll stand for edgers in rolling mills. The roll stand is formed of several pieces, including two crossheads and four longitudinal bars as main components, as well as one respective common cruciform junction point for the crosshead and the longitudinal bars, which is located at the ends of the longitudinal bars. Pretensioned through bolts that act as a joint are used at least at the top ends of the longitudinal bars.

Description

MEHRTEILIG AUSGEFÜHRTER WALZENSTANDER FÜR STAUCHGΞRUSTE IN WALZWERKEN MULTI-PIECE ROLLER STAND FOR UPRIGHT GRID IN ROLLING MILLS
Die Erfindung betrifft einen Walzenständer für Stauchgerüste in Walzwerken, der mehrteilig ausgeführt ist und aus Hauptkomponenten, wie bspw. Querhäuptern und Längsholmen besteht, die mittels Schrauben miteinander verbunden sind.The invention relates to a roll stand for upsetting stands in rolling mills, which is designed in several parts and consists of main components, such as, for example, crossheads and longitudinal spars, which are connected to one another by means of screws.
Walzenständer für Stauchgerüste sind zumeist Gusskonstruktionen zur Aufnahme der für den Stauchprozess erforderlichen Baugruppen, wie bspw. zur Anstellung, Balancierung, Stauchwalzensatz, Getriebe, Motor u. dgl.Roller stands for upsetting stands are mostly cast structures to accommodate the assemblies required for the upsetting process, such as for adjustment, balancing, upsetting roller set, gear, motor and the like. like.
Die Gusskonstruktionen sind in einer zweiteiligen Bauart bekannt, bei der der Walzenständer eine horizontale Trennfuge besitzt und beide Hälften bspw. mittels eines Schrumpfringes formschlüssig verbunden sind.The cast structures are known in a two-part design, in which the roller stand has a horizontal parting line and both halves are connected in a form-fitting manner, for example by means of a shrink ring.
Alle gegossenen Varianten besitzen den Nachteil, dass große Gussteile mit entsprechend hohem Schwierigkeitsgrad und entsprechendem Gießrisiko gefertigt werden müssen. Nachteilig ist außerdem, dass durch das hohe Bauteilgewicht erhöhte Anforderungen an die einzusetzenden Fertigungsmaschinen ge- stellt werden müssen. Die Auswahl der Gießereien und Bearbeitungsbetriebe ist demzufolge eingeschränkt, womit zusätzlich kommerzielle Beschränkungen verbunden sind.All cast variants have the disadvantage that large cast parts with a correspondingly high degree of difficulty and a corresponding casting risk have to be produced. Another disadvantage is that the high component weight means that the production machines to be used have to meet increased requirements. The choice of foundries and processing companies is therefore restricted, which also entails commercial restrictions.
Die eingangs bezeichnete, in der Praxis verwirklichte Bauart, stellt einen mehr- teiligen Walzenständer dar, der zwei Querhäupter und vier Längsholme aufweist, die mittels Schrauben miteinander verbunden sind.The design described at the outset, which is implemented in practice, represents a multi-part roll stand that has two crossheads and four longitudinal spars that are connected to each other by means of screws.
Der Erfindung liegt die Aufgabe zugrunde, Stauchgerüste der mehrteiligen Bauart derart zu verbessern, dass die Einschnürung des Ständerfensters , die Be- triebslast und die Aufprallkraft (horizontale Maximalkraft, unter der das Walzgut gegen die geschlossenen Walzen eines Vertikalgerüstes gefördert wird) besser berücksichtigt werden.The invention has for its object to improve compression structures of the multi-part design such that the constriction of the stand window, the loading drive load and the impact force (maximum horizontal force under which the rolling stock is conveyed against the closed rolls of a vertical stand) are better taken into account.
Die gestellte Aufgabe wird erfindungsgemäß dadurch gelöst, dass bei einer mehrteiligen Ausführungsform der Hauptkomponenten aus den zwei Querhäuptern und den vier Längsholmen, an den oberen und unteren Längsholm-Enden jeweils eine gemeinsame Verbindungsstelle für das Querhaupt und die Längsholme in einer Kreuzform vorgesehen ist, wobei zumindest an den oberen Längsholm-Enden vorgespannte, als Gelenk wirkende Durchgangsschrauben verwendet sind. Diese vorgespannten Durchgangsschrauben gewährleisten eine dauerhaft sichere Verbindung über eine hohe Vorspannung. Damit bleibt einerseits die Schraubenzusatzkraft relativ niedrig zur Vorspannkraft und anderseits wird ein Klaffen oder Atmen von Trennfugen vermieden. Die gelenkartige Verbindung durch Vorspannen bewirkt zudem eine geringere Einschnürung des Ständerfensters unter Last gegenüber einem vergleichbaren nur zweiteiligen Stauchgerüst.The stated object is achieved in that in a multi-part embodiment of the main components from the two crossheads and the four longitudinal spars, a common connection point for the crosshead and the longitudinal spars is provided in a cross shape at the upper and lower longitudinal spar ends, at least Prestressed through-bolts acting as articulations are used at the upper longitudinal beam ends. These preloaded through bolts ensure a permanently secure connection with a high preload. On the one hand, this means that the additional screw force remains relatively low compared to the pre-tensioning force, and on the other hand, gaping or breathing of parting lines is avoided. The articulated connection by pretensioning also causes a smaller constriction of the stator window under load compared to a comparable, only two-part compression frame.
Des Weiteren wird durch die besondere Kreuzform an den Längsholm-Enden das Spannungsniveau und der Spannungsverlauf in den Längsholmen und / oder dem Querhaupt optimiert. Nachbildungen auf der Grundlage der Finite- Elemente-Methode haben einen Nachweis dieser Feststellungen ergeben. Außerdem lässt sich ein Optimum für die Schraubenvorspannung finden, bei dem die konstruktiv bedingte Bohrung im Querhaupt zur Aufnahme der AnStelleinrichtung für das Werkzeug entsprechend enger vorgegebener Toleranzen nicht wesentlich verformt wird.Furthermore, the special cross shape at the longitudinal spar ends optimizes the tension level and the stress curve in the longitudinal spars and / or the crosshead. Replicas based on the finite element method have provided evidence of these findings. In addition, an optimum for the screw pretension can be found, in which the design-related bore in the crosshead for receiving the adjusting device for the tool is not significantly deformed in accordance with tighter tolerances.
In Ausgestaltung der Erfindung ist vorgesehen, dass die Querhäupter jeweils einstückig ausgeführt und jeweils auf einer Sohlplatte befestigbar sind.In an embodiment of the invention it is provided that the crossheads are each made in one piece and can each be attached to a sole plate.
Vorteilhaft ist ferner, dass die Querhäupter durch Formschluss mit den Längs- holmen zusammen und mit den vorgespannten Durchgangsschrauben einen Verbund bilden. Die Herstellung des Walzenständers wird ferner dadurch günstig beeinflusst, dass zumindest die Querhäupter und die Längsholme jeweils aus Gusswerkstoffen hergestellt sind.It is also advantageous that the crossheads form a connection with the longitudinal bars and form a bond with the prestressed through bolts. The manufacture of the roll stand is also favorably influenced by the fact that at least the crossheads and the longitudinal bars are each made of cast materials.
Die Statik wird ferner dadurch unterstützt, dass die Durchgangsschrauben paarweise symmetrisch zur Mittenebene angeordnet sind.The statics is also supported by the fact that the through screws are arranged in pairs symmetrically to the center plane.
Eine andere Verbesserung besteht darin, dass zusätzlich zu den Durchgangsschrauben Schraubbolzen paarweise symmetrisch zur Mittenebene vorgesehen sind.Another improvement is that in addition to the through bolts, bolts are provided in pairs symmetrically to the center plane.
Eine weitere Ausgestaltung besteht darin, dass die Längsholme über die Kreuzform, die Durchgangsschrauben und die Schraubenbolzen in dem jeweiligen Querhaupt befestigt sind. Die Schraubenbolzen können in Gewindesacklöcher des Querhaupts eingeschraubt und zur Außenseite des Walzenständers hin angeordnet sein.A further embodiment consists in that the longitudinal spars are fastened in the respective crosshead via the cross shape, the through screws and the screw bolts. The bolts can be screwed into threaded blind holes in the crosshead and arranged towards the outside of the roll stand.
Die Verbindungen zwischen Querhaupt und Längsholmen werden bevorzugt derart ausgebildet, dass im Querhaupt eine kreuzförmige Tasche vorgesehen ist, in die eine innen liegende Federform und eine außen liegende Federform eingreifen. In den Auskragungen der Kreuzform-Schenkel der Längsholme befinden sich Bohrungen zur Aufnahme der Durchgangsschrauben und / oder der Schraubenbolzen. Die Abmessungen der Federformen richten sich nach den konstruktiven Notwendigkeiten des Querhauptes und besitzen eine Größe, die es erlaubt, an den Einbauten im Querhaupt vorbei die vorgespannten Durchgangsschrauben durch jeweils zwei Längsholme hindurchzustecken.The connections between crosshead and longitudinal spars are preferably formed in such a way that a cross-shaped pocket is provided in the crosshead, into which an internal spring shape and an external spring shape engage. There are bores in the projections of the cross-shaped legs of the longitudinal bars for receiving the through bolts and / or the bolts. The dimensions of the spring shapes are based on the design requirements of the crosshead and are of a size that allows the preloaded through screws to be inserted through two longitudinal bars each past the internals in the crosshead.
Der außen liegende Kreuzschenkel oder der innen liegende Kreuzschenkel bilden jeweils eine Nutform oder eine Federform, die jeweils bei Gegenüberliegen ineinander passen. Diese Nutform und die Federform werden in die dazu passende kreuzförmige Tasche des Querhauptes eingelassen, die ihrerseits die korrespondierende Nutform und Federform aufweist und bilden damit einen Formschluss zwischen Querhaupt und Längsholmen.The outer cross leg or the inner cross leg each form a groove shape or a tongue shape, which fit into each other when facing each other. This groove shape and the tongue shape are embedded in the matching cross-shaped pocket of the crosshead, which in turn is the has the corresponding groove shape and tongue shape and thus form a positive connection between crosshead and longitudinal spars.
Der Querschnittsverlauf des Längsholms quer zu den Kreuzschenkeln in Nutform oder in Federform bzw. zu der Tasche im Querhaupt richtet sich nach den konkreten Belastungen des Stauchgerüstes hinsichtlich der Betriebskraft und Aufprallkraft und ist über die Länge des Längsholms unterschiedlich groß gestaltet. Im wesentlichen folgt der Querschnitt der Form eines Trägers gleicher Beanspruchung.The cross-sectional profile of the longitudinal spar transversely to the cross legs in the form of a tongue or groove or to the pocket in the crosshead depends on the specific loads on the compression frame with regard to the operating force and impact force and is of different sizes over the length of the longitudinal spar. The cross section essentially follows the shape of a beam of the same stress.
Nach weiteren Merkmalen ist vorgesehen, dass die Querschnittsübergänge im Querhaupt und / oder in den Längsholmen mit angepasst großen Radien entsprechend der Betriebskraft und einer Aufprallkraft versehen sind. Dadurch ist ein gleichmäßiger Spannungsverlauf gewährleistet.According to further features, it is provided that the cross-sectional transitions in the crosshead and / or in the longitudinal spars are provided with adapted large radii in accordance with the operating force and an impact force. This ensures an even voltage curve.
Die kreuzförmigen Taschen des Querhauptes und die kreuzförmigen Federformen des jeweiligen Längsholm-Endes sind mit Fasen versehen. Die Fasen können mit Dichtstoffen, bspw. Silikon, ausgefüllt werden. Dadurch wird das Eindringen von Schmutz, Wasser und anderen Fremdstoffen verhindert.The cross-shaped pockets of the crosshead and the cross-shaped spring forms of the respective longitudinal spar ends are provided with chamfers. The chamfers can be filled with sealants, e.g. silicone. This prevents dirt, water and other foreign substances from entering.
Eine andere Ausgestaltung sieht vor, dass außer den Durchgangsschrauben auch die Schraubenbolzen als Dehnschrauben ausgebildet sind und ebenso wie die Durchgangsschrauben eine Heizbohrung, Gewinde-Enden und Zentrieransätze zur Erleichterung der Montage aufweisen. Alle Durchgangsschrauben und Schraubenbolzen sind mit einem längeren Gewinde-Ende ausgestat- tet, das ziehendes kontrolliertes Anziehen mit entsprechenden Vorspannwerkzeugen gestattet, womit eine sichere Kontrolle der Vorspannkraft gewährleistet ist.Another embodiment provides that, in addition to the through screws, the screw bolts are also designed as expansion screws and, like the through screws, have a heating hole, threaded ends and centering lugs to facilitate assembly. All through bolts and bolts are equipped with a longer thread end, which allows pulling and controlled tightening with appropriate pretensioning tools, which ensures reliable control of the pretensioning force.
Eine Abwandlung der vorstehend beschrieben Bauform kann dadurch geschaf- fen werden, dass das Querhaupt in ein Querhaupt-Oberteil und ein Querhaupt- Unterteil getrennt ist und Oberteil und Unterteil mittels eines Schrumpfrings, einer Flanschverbindung oder eines Zwischenstücks miteinander verbunden sind.A modification of the design described above can be created in that the crosshead is separated into a crosshead upper part and a crosshead lower part and the upper part and lower part by means of a shrink ring, a flange connection or an intermediate piece are connected to one another.
In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt, die nachfolgend näher erläutert werden.In the drawing, embodiments of the invention are shown, which are explained in more detail below.
Es zeigen:Show it:
Fig. 1 eine Ansicht des Walzenständers im Aufriss,1 is a view of the roll stand in elevation,
Fig. 2 das Querhaupt in perspektivischer Ansicht,2 the crosshead in perspective view,
Fig. 3 einen einzelnen Längsholm in perspektivischer Ansicht, Fig. 4 einen Schnitt B-B im oberen Teil in einer vorderen Ebene und einen Schnitt C-C im unteren Teil in einer hinteren Ebene gemäß Fig. 1 ,3 shows a single longitudinal spar in a perspective view, FIG. 4 shows a section B-B in the upper part in a front plane and a section C-C in the lower part in a rear plane according to FIG. 1,
Fig. 5A eine Ansicht auf die Kreuzform im Querhaupt,5A is a view of the cross shape in the crosshead,
Fig. 5B eine Seitenansicht zu Fig. 5A, FFiigg.. 66 einen Teilschnitt durch das Ende eines Längsholms,5B shows a side view of FIG. 5A, FIG. 66 shows a partial section through the end of a longitudinal spar,
Fig. 7 eine Draufsicht in Richtung „A" (Fig. 6) auf die Kreuzform im Längsholm,7 is a plan view in the direction “A” (FIG. 6) of the cross shape in the longitudinal spar,
Fig. 8 eine Ansicht einer Durchgangsschraube undFig. 8 is a view of a through screw and
Fig. 9 eine Ansicht eines Schraubenbolzens.Fig. 9 is a view of a screw bolt.
Gemäß Fig. 1 bestehen die Hauptkomponenten 1 aus zwei Querhäuptern 1a und 1b und aus vier Längsholmen 4a und 4b. Am Übergang zu einem Querhaupt 1a, 1 b sind jeweils Verbindungsstellen 3 mit abdeckenden Teilen 3a gebildet.1, the main components 1 consist of two crossheads 1a and 1b and four longitudinal spars 4a and 4b. At the transition to a crosshead 1a, 1b, connection points 3 with covering parts 3a are formed.
Bei der gezeichneten 6-teiligen Ausführungsform der Hauptkomponenten 1 aus den zwei Querhäuptern 1a, 1 b und den vier Längsholmen 4a, 4b ist an dem jeweiligen Längsholm-Ende 6 eine Kreuzform 7 aus Kreuzschenkeln 11 oder Federformen 19 gebildet. Die Verbindung zwischen Querhaupt 1a, 1 b und den Längsholmen 4a, 4b, die jeweils auf einer nicht näher dargestellten Sohlplatte unterhalb eines Querhauptfußes 8 aufgestützt sind, erfolgt mittels Durchgangsschrauben 5, die vorgespannt sind und dadurch im Werkstoff in Achsrichtung dehnungsfähig und quer ein Gelenk bilden. Das Längsholm-Ende 6 ist über die Kreuzform 7 mit den Querhäuptern 1a, 1 b mittels Schraubenbolzen 10 verbunden.In the 6-part embodiment of the main components 1 shown, consisting of the two crossheads 1a, 1b and the four longitudinal spars 4a, 4b, a cross shape 7 of cross legs 11 or spring shapes 19 is formed on the respective longitudinal spar end 6. The connection between crosshead 1a, 1b and the longitudinal spars 4a, 4b, which are each supported on a base plate (not shown in detail) below a crosshead 8, is made by means of through-bolts 5, which are prestressed and thereby expand in the material in the axial direction and form a joint transversely , The longitudinal beam end 6 is connected via the cross shape 7 to the crossheads 1a, 1b by means of screw bolts 10.
In der Mittenebene 9 können Werkzeuge wie bspw. Stauchwalzenpaare oder Pressblöcke u. dgl. eingebaut werden.In the center plane 9, tools such as, for example, upsetting roller pairs or press blocks, etc. Like. Be installed.
Aufgrund eines solchen Walzenständers werden Stahlbrammen mit Dicken zwischen 150 - 300 mm ab einer Eingangstemperatur von ca. 1150 °C und Geschwindigkeiten von 1 ,5 - 6 m /sec oder Aluminium-Brammen bis 600 mm Dicke ab einer Eingangstemperatur von ca. 540 °C seitlich gestaucht, d.h. auf eine reduzierte Breite verformtDue to such a roll stand, steel slabs with a thickness between 150 - 300 mm from an inlet temperature of approx. 1150 ° C and speeds of 1.5 - 6 m / sec or aluminum slabs with a thickness of up to 600 mm from an inlet temperature of approx. 540 ° C laterally compressed, ie deformed to a reduced width
In Fig. 2 sind an dem Querhaupt 1a, 1 b eine kreuzförmige Tasche 12, Querschnittsübergänge 2a und eine innen liegende Nutform 13a sowie eine außen liegende Nutform 13b leicht erkennbar.In FIG. 2, a cross-shaped pocket 12, cross-sectional transitions 2a and an internal groove shape 13a and an external groove shape 13b are easily recognizable on the crosshead 1a, 1b.
Gemäß Fig. 3 besteht die Hauptkomponente 1 aus dem Längsholm 4a, 4b. Die Längsholm-Enden 6 besitzen jeweils in Kreuzform 7 angeordnete Federformen 19 mit außen liegenden Kreuzschenkeln 13, innen liegenden Nutformen 13a, außen liegende Nutformen 13b und Kreuzschenkel 11 , die mit Querschnittsübergängen 2b und Bohrungen 18 im Längsholm 4a, 4b versehen sind.3, the main component 1 consists of the longitudinal spar 4a, 4b. The longitudinal beam ends 6 each have a spring shape 19 arranged in a cross shape 7 with external cross legs 13, internal groove shapes 13a, external groove shapes 13b and cross leg 11, which are provided with cross-sectional transitions 2b and bores 18 in the longitudinal beam 4a, 4b.
Die Querhäupter 1a, 1b sind unterhalb des Querhauptfußes 8 auf der Sohlplatte befestigt und die Verbindungsstellen 3 durch die Kreuzform 7 ergeben sich gemäß den Fig. 4, 5A und 5B wie folgt: Die Durchgangsschrauben 5 ( Fig. 4, oberer Teil ) verbinden ein Querhaupt 1a; 1b jeweils mit Längsholmen 4a und 4b.The crossheads 1a, 1b are fastened below the crosshead 8 on the soleplate and the connection points 3 through the cross shape 7 result according to FIGS. 4, 5A and 5B as follows: The through screws 5 (Fig. 4, upper part) connect a crosshead 1a; 1b each with longitudinal bars 4a and 4b.
Die Schraubenbolzen 10 ( Fig. 4 unterer Teil ) verbinden ein Querhaupt 1a, 1b mit den Längsholmen 4a, 4b und sind jeweils in einem Gewindesackloch des Querhaupts 1a, 1b eingeschraubt.The bolts 10 (lower part of FIG. 4) connect a crosshead 1a, 1b to the longitudinal bars 4a, 4b and are each screwed into a threaded blind hole in the crosshead 1a, 1b.
Das Querhaupt 1a, 1b ( Fig. 5A und 5B) bildet durch Formschluss mit den Längsholmen 4a, 4b und zusammen mit den Durchgangsschrauben 5 und den Schraubbolzen 10 einen Verbund. Die Durchgangsschrauben 5 und die Schraubbolzen 10 sind paarweise symmetrisch zur Mittenebene 9 angeordnet.The crosshead 1a, 1b (FIGS. 5A and 5B) forms a connection by positive locking with the longitudinal bars 4a, 4b and together with the through screws 5 and the screw bolts 10. The through screws 5 and the bolts 10 are arranged in pairs symmetrically to the center plane 9.
Im Querhaupt 1a, 1 b sind eine Tasche 12 und ein außen liegender Kreuzschenkel 11 vorgesehen, die die Kreuzform 7 bilden und die jeweils mit innen liegenden Federformen 19a, außen liegenden Federformen 19b des Längs- holms 4a, 4b ( oder Taschen 12 des Querhaupts 1a, 1 b ) zusammenwirken und den Formschluss bilden. Hierzu sind die kreuzförmig innen liegende ( oder außen liegende ) Federform 19a und eine außen liegende (oder innen liegende) Federform 19b angeordnet.In the crosshead 1a, 1b, a pocket 12 and an outer cross leg 11 are provided, which form the cross shape 7 and the respective spring shapes 19a, external spring shapes 19b of the longitudinal spar 4a, 4b (or pockets 12 of the crosshead 1a , 1 b) interact and form the positive connection. For this purpose, the cross-shaped inside (or outside) spring form 19a and an outside (or inside) spring form 19b are arranged.
Es können auch kreuzförmige Taschen 12 nur im Querhaupt 1a, 1b vorgesehen sein, in die die kreuzförmigen Federformen 19a, 19b der Längsholme 4a, 4b eingreifen.Cross-shaped pockets 12 can also be provided only in the crosshead 1a, 1b, in which the cross-shaped spring forms 19a, 19b of the longitudinal spars 4a, 4b engage.
An den kreuzförmigen Taschen 12 mit Kreuzschenkel 11 , wobei Nutformen 11a (Fig. 5B) angrenzen oder Federformen 19a, 19b, sind Fasen 14 an- oder ausgeschrägt. Die Fasen 14 können mit Dichtstoffen, wie bspw. Silikon , ausgefüllt werden, die das Eindringen von Schmutz und / oder Wasser oder anderen Fremdstoffen verhindern.On the cross-shaped pockets 12 with cross legs 11, groove shapes 11a (FIG. 5B) adjoining or tongue shapes 19a, 19b, chamfers 14 are chamfered or chamfered. The chamfers 14 can be filled with sealants, such as silicone, which prevent the ingress of dirt and / or water or other foreign substances.
Die Schraubbolzen 10 können auch wie die Durchgangsschraube 5 als Dehnschraube ausgebildet sein ( Fig. 8 und 9 ) und besitzen Heizbohrungen 15, zwei Gewindeenden 16, einen Zentrieransatz 17 und verlaufen durch die Bohrungen 18.The bolts 10 can also be designed like the through screw 5 as an expansion screw (FIGS. 8 and 9) and have heating holes 15, two Thread ends 16, a centering shoulder 17 and run through the holes 18th
Alternativ ist das Querhaupt 1a, 1b in ein Querhaupt-Oberteil 1c und ein Querhaupt-Unterteil 1d getrennt ( Fig. 4) und Oberteil 1c und Unterteil 1d sind mittels eines (nicht gezeigten) Schrumpfrings, einer Flanschverbindung oder eines Zwischenstücks miteinander verbunden. Alternatively, the crosshead 1a, 1b is separated into a crosshead upper part 1c and a crosshead lower part 1d (FIG. 4) and upper part 1c and lower part 1d are connected to one another by means of a shrink ring (not shown), a flange connection or an intermediate piece.
Bezugszeichenliste 1 Hauptkomponente1 main component
1 a Querhaupt1 a crosshead
I b QuerhauptI b crosshead
1c Querhaupt-Oberteil1c crosshead top
1d Querhaupt-Unterteil 2a Querschnittsübergang im Querhaupt1d crosshead lower part 2a cross-sectional transition in the crosshead
2b Querschnittsübergang im Längsholm2b cross-sectional transition in the longitudinal spar
3 Verbindungsstelle3 connection point
3a abdeckende Teile3a covering parts
4a Längsholm 4b Längsholm4a longitudinal spar 4b longitudinal spar
5 vorgespannte Durchgangsschraube5 preloaded through bolts
6 Längsholm-Ende6 longitudinal beam end
7 Kreuzform7 cross shape
8 Querhauptfuß 9 Mittenebene8 crosshead 9 center plane
10 Schraubenbolzen10 bolts
I I Kreuzschenkel 11a NutformI I cross leg 11a groove shape
12 (kreuzförmige) Tasche im Querhaupt 13 außen liegender Kreuzschenkel12 (cruciform) pocket in the crosshead 13 outer cross leg
13a innen liegende Nutform13a internal groove shape
13b außen liegende Nutform13b external groove shape
14 Fase14 chamfer
15 Heizbohrung 16 Gewinde-Ende15 heating hole 16 threaded end
17 Zentrieransatz17 centering approach
18 Bohrung Federforma innen liegende Federformb außen liegende Federform 18 hole Feather forma inside spring formb outside spring form

Claims

Patentansprüche claims
1. Walzenständer für Stauchgerüste in Walzwerken, der mehrteilig ausgeführt ist und aus Hauptkomponenten (1), wie bspw. Querhäuptern (1a; 1 b) und Längsholmen (4a; 4b) besteht, die mittels Schrauben miteinan- der verbunden sind, dadurch gekennzeichnet, dass bei einer mehrteiligen Ausführungsform der Hauptkomponenten (1) aus den zwei Querhäuptern (1a; 1b) und den vier Längsholmen (4a, 4b), an den oberen und unteren Längsholm-Enden (6) jeweils eine ge- meinsame Verbindungsstelle (3) für das Querhaupt (1a, 1 b) und die Längsholme (4a, 4b) in einer Kreuzform (7) vorgesehen ist, wobei zumindest an den oberen Längsholm-Enden (6) vorgespannte, als Gelenk wirkende Durchgangsschrauben (5) verwendet sind.1. Roll stand for upsetting stands in rolling mills, which is constructed in several parts and consists of main components (1), such as, for example, crossheads (1a; 1b) and longitudinal spars (4a; 4b), which are connected to one another by means of screws, characterized in that that in a multi-part embodiment of the main components (1) consisting of the two crossheads (1a; 1b) and the four longitudinal spars (4a, 4b), at the upper and lower longitudinal spar ends (6) each have a common connection point (3) for the crosshead (1a, 1b) and the longitudinal spars (4a, 4b) are provided in a cross shape (7), at least at the upper longitudinal spar ends (6) pre-stressed through-bolts (5) acting as articulations are used.
2. Walzenständer nach Anspruch 1 , dadurch gekennzeichnet, dass die Querhäupter (1a, 1 b ) jeweils einstückig ausgeführt und mit einem Querhauptfuß (8) jeweils auf einer Sohlplatte befestigbar sind.2. Roller stand according to claim 1, characterized in that the crossheads (1a, 1b) are each made in one piece and can be fastened to a sole plate with a crosshead (8).
3 Walzenständer nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Querhäupter (1a; 1b) durch Formschluss mit den Längsholmen (4a; 4b ) zusammen und mit den vorgespannten Durchgangsschrauben (5) einen Verbund bilden.3 roll stand according to one of claims 1 or 2, characterized in that the crossheads (1a; 1b) form fit together with the longitudinal spars (4a; 4b) and with the prestressed through screws (5).
Walzenständer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass zumindest die Querhäupter (1a; 1b) und die Längsholme (4a; 4b) jeweils aus Gusswerkstoffen hergestellt sind.Roller stand according to one of claims 1 to 3, characterized in that that at least the crossheads (1a; 1b) and the longitudinal bars (4a; 4b) are each made of cast materials.
5. Walzenständer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Durchgangsschrauben (5) paarweise symmetrisch zur Mittenebene (9) angeordnet sind.5. Roller stand according to one of claims 1 to 4, characterized in that the through screws (5) are arranged in pairs symmetrically to the center plane (9).
6. Walzenständer nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass zusätzlich zu den Durchgangsschrauben (5) Schraubbolzen (10) paarweise symmetrisch zur Mittenebene (9) vorgesehen sind.6. Roller stand according to one of claims 1 to 5, characterized in that in addition to the through screws (5) bolts (10) are provided in pairs symmetrically to the center plane (9).
7. Walzenständer nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Längsholme (4a; 4b) über die Kreuzform (7), die Durchgangsschrauben (5) und die Schraubenbolzen (10) in dem jeweiligen Querhaupt (1 a, 1 b) befestigt sind.7. roll stand according to one of claims 1 to 6, characterized in that the longitudinal spars (4a; 4b) on the cross shape (7), the through screws (5) and the screw bolts (10) in the respective crosshead (1 a, 1 b ) are attached.
8. Walzenständer nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass im Querhaupt (1a; 1 b) eine kreuzförmige Tasche (12) vorgesehen ist, in die eine innen liegende Federform (19a) und eine außen liegende Federform (19b) eingreifen.8. Roller stand according to one of claims 1 to 7, characterized in that a cross-shaped pocket (12) is provided in the crosshead (1a; 1b), in which an internal spring shape (19a) and an external spring shape (19b) engage ,
9. Walzenständer nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Querschnittsübergänge (2a; 2b) im Querhaupt (1 a; 1 b) und / oder in den Längsholmen (4a, 4b) mit angepasst großen Radien entsprechend der Betriebskraft und einer Aufprallkraft versehen sind.9. roll stand according to one of claims 1 to 8, characterized in that the cross-sectional transitions (2a; 2b) in the crosshead (1 a; 1 b) and / or in the longitudinal spars (4a, 4b) with adapted large radii according to the operating force and are provided with an impact force.
10. Walzenständer nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die kreuzförmigen Taschen (12) des Querhaupts (1 a; 1 b) und die kreuzförmigen Federformen (19) des jeweiligen Längsholm-Endes (6) mit Fasen (14) versehen sind.10. roll stand according to one of claims 1 to 9, characterized in that the cross-shaped pockets (12) of the crosshead (1 a; 1 b) and the cross-shaped spring shapes (19) of the respective longitudinal spar end (6) are provided with chamfers (14).
11. Walzenständer nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass außer den Durchgangsschrauben (5) auch die Schraubenbolzen (10) als Dehnschrauben ausgebildet sind und ebenso wie die Durchgangsschrauben (5) eine Heizbohrung (15), Gewinde-Enden (16) und Zentrieransätze (17) zur Erleichterung der Montage aufweisen.11. Roller stand according to one of claims 1 to 10, characterized in that in addition to the through screws (5), the screw bolts (10) are designed as expansion screws and, like the through screws (5), a heating hole (15), threaded ends (16 ) and centering lugs (17) to facilitate assembly.
12. Walzenständer nach einem der Ansprüche 1 bis 1 1 , dadurch gekennzeichnet, dass das Querhaupt (1 a; 1 b) in ein Querhaupt-Oberteil (1c) und ein Querhaupt-Unterteil (1d) getrennt ist und Oberteil (1 c) und Unterteil (1 d) mittels eines Schrumpfringes, einer Flanschverbindung oder eines Zwischenstücks miteinander verbunden sind. 12. Roll stand according to one of claims 1 to 1 1, characterized in that the crosshead (1 a; 1 b) in a crosshead upper part (1c) and a crosshead lower part (1d) is separated and upper part (1 c) and Lower part (1 d) are connected to one another by means of a shrink ring, a flange connection or an intermediate piece.
EP04790764A 2003-11-27 2004-10-22 Multi-part roll stand for edgers in rolling mills Active EP1708831B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10355977A DE10355977A1 (en) 2003-11-27 2003-11-27 Roll stand for upsetting stands in rolling mills, which is made of several parts
PCT/EP2004/011972 WO2005061138A1 (en) 2003-11-27 2004-10-22 Multi-part roll stand for edgers in rolling mills

Publications (2)

Publication Number Publication Date
EP1708831A1 true EP1708831A1 (en) 2006-10-11
EP1708831B1 EP1708831B1 (en) 2007-12-05

Family

ID=34625430

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04790764A Active EP1708831B1 (en) 2003-11-27 2004-10-22 Multi-part roll stand for edgers in rolling mills

Country Status (12)

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US (1) US7434436B2 (en)
EP (1) EP1708831B1 (en)
JP (1) JP4584932B2 (en)
CN (1) CN100384554C (en)
AT (1) ATE380077T1 (en)
BR (1) BRPI0416554B1 (en)
CA (1) CA2542111C (en)
DE (2) DE10355977A1 (en)
ES (1) ES2295940T3 (en)
RU (1) RU2355490C2 (en)
UA (1) UA85071C2 (en)
WO (1) WO2005061138A1 (en)

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US8186187B2 (en) * 2009-10-02 2012-05-29 Stanton Concepts, L.L.C. Dual custody privacy padlock

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US679413A (en) * 1900-09-18 1901-07-30 Thomas Bunker Rolling-mill.
DE1240023B (en) * 1964-04-25 1967-05-11 Wuppermann Gmbh Theodor Rolling frame, in particular for cold profiling rolling mills, forming and sizing mills for pipe welding systems and similar facilities
US3895512A (en) 1973-10-24 1975-07-22 Sack Gmbh Maschf Multiple-part machine frame for presses, rolling mills or the like
US4537056A (en) * 1983-12-01 1985-08-27 Sms Schloemann - Siemag, Inc. Rolling mill
US4768366A (en) * 1987-04-30 1988-09-06 Tadeusz Sendzimir Wide strip mill using pressure elements
EP0291719B1 (en) * 1987-05-16 1992-07-29 Sms Schloemann-Siemag Aktiengesellschaft Universal rolling mill stand with adjustable horizontal and vertical rolls
DE4025390A1 (en) * 1990-08-10 1992-02-13 Schloemann Siemag Ag SQUEEZING PRESS FOR REDUCING THE WIDTH OF ROLLED GOODS
US5085069A (en) 1990-11-26 1992-02-04 Steel Technologies, Inc. Mulit-part rolling mill housing
DE4239641A1 (en) * 1992-11-26 1994-06-01 Schloemann Siemag Ag Scaffolding stand
DE9415429U1 (en) * 1994-09-23 1994-12-15 Schloemann Siemag Ag Multi-part mill stand
CN1060976C (en) * 1994-09-30 2001-01-24 波米尼股份公司 Rolling stand with tie-rods with extremely high strength to axial stresses
DE19535167A1 (en) * 1995-09-22 1997-03-27 Schloemann Siemag Ag Training of the support frame of slab presses
JP2876121B1 (en) * 1998-01-20 1999-03-31 川崎重工業株式会社 Rolling mill

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Also Published As

Publication number Publication date
BRPI0416554A (en) 2007-01-09
US20070101791A1 (en) 2007-05-10
WO2005061138A1 (en) 2005-07-07
ATE380077T1 (en) 2007-12-15
US7434436B2 (en) 2008-10-14
CN100384554C (en) 2008-04-30
CA2542111C (en) 2011-09-06
ES2295940T3 (en) 2008-04-16
CN1886207A (en) 2006-12-27
DE502004005670D1 (en) 2008-01-17
DE10355977A1 (en) 2005-06-30
JP4584932B2 (en) 2010-11-24
RU2355490C2 (en) 2009-05-20
UA85071C2 (en) 2008-12-25
RU2006122807A (en) 2008-01-10
JP2007512141A (en) 2007-05-17
CA2542111A1 (en) 2005-07-07
BRPI0416554B1 (en) 2016-06-28
EP1708831B1 (en) 2007-12-05

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