EP0721810A1 - Straightening machine for rolled beams, in particular hyper-beams - Google Patents

Straightening machine for rolled beams, in particular hyper-beams Download PDF

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Publication number
EP0721810A1
EP0721810A1 EP95100415A EP95100415A EP0721810A1 EP 0721810 A1 EP0721810 A1 EP 0721810A1 EP 95100415 A EP95100415 A EP 95100415A EP 95100415 A EP95100415 A EP 95100415A EP 0721810 A1 EP0721810 A1 EP 0721810A1
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EP
European Patent Office
Prior art keywords
straightening
straightening machine
machine according
beams
disks
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
EP95100415A
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German (de)
French (fr)
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EP0721810B1 (en
Inventor
Markus Willems
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 Schloemann Siemag AG
Schloemann Siemag 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
Priority to DE4324416A priority Critical patent/DE4324416A1/en
Priority to ES95100415T priority patent/ES2115271T3/en
Priority to AT95100415T priority patent/ATE164788T1/en
Priority to EP95100415A priority patent/EP0721810B1/en
Priority to DE59501843T priority patent/DE59501843D1/en
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to JP00591895A priority patent/JP3558398B2/en
Priority to US08/375,906 priority patent/US5644939A/en
Publication of EP0721810A1 publication Critical patent/EP0721810A1/en
Application granted granted Critical
Publication of EP0721810B1 publication Critical patent/EP0721810B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
    • B21D3/05—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes rectangular to the path of the work

Definitions

  • the invention relates to a straightening machine for rolled beams, in particular hyper-beams, in which at least one of the two straightening disks which bear against the beam flanges from the inside and are supported by a straightening shaft can be adjusted axially.
  • a straightening shaft for straightening machines of this type has become known from DE-35 22 976 A1.
  • This straightening machine is used to straighten rails.
  • hot-rolled double-T beams or hyper-beams to be straightened it should be noted that they have a constant height dimension depending on the series, whereas the flange thicknesses can vary.
  • the determination of the height H enables optimized connections (gusset plates) of the girders with different resistance moments in steel buildings.
  • the current straightening practice in a straightening machine downstream of the carrier line provides that the beams are moved into the straightening machine lying on the flanges and then run over the straightening disks with the web. This means that the flanges have to be plastically deformed during straightening and all the required straightening forces are passed through the web and the transition radius from the web to the flanges in the flanges. Since the flanges also begin to breathe due to the deformation of the web and exert an axial force - clamping the carrier - on the straightening discs, an axially stable construction is required.
  • the straightening disks are therefore fixed to a mounting bushing using a spacer bushing or spacer washers, corresponding to the dimensions of the chamber, and completely replaced if necessary.
  • This assembly bushing unit is placed directly on the straightening shaft and axially clamped there by means of a clamping nut or a clamping head. In the case of a changed chamber dimension due to different flange thicknesses, this is equivalent to a very time-consuming changeover time, since each chamber dimension deviation inevitably leads to a change in the assembly bushing unit.
  • the invention is therefore based on the object of providing a simple, maintenance-friendly possibility in a straightening machine of the type mentioned at the outset, which allows the outer or chamber dimensions of the straightening disks to be changed quickly.
  • a support ring for a plurality of hydraulic cylinders distributed over the circumference is arranged between the straightening disks, the actuating pistons of which are connected to a straightening disk.
  • the straightening disks of a straightening shaft is connected to the actuating piston, preferably via threaded bolts by means of a screw connection, this straightening disk can be axially adjusted when the actuating piston is subjected to the displacement pressure - approximately 100 bar - and thus adapt the chamber dimensions to changed flange thicknesses, whereby it goes without saying that an adjustment to a series with fundamentally different carrier dimensions is equally possible.
  • the second straightening disc can remain in its once defined position; nevertheless, both straightening disks could also be adjusted axially, for which purpose hydraulic cylinders could be arranged in the supporting ring from both end faces.
  • the hydraulic cylinders which are advantageously screwed into the nut and consequently designed as screw-in elements, and are therefore located in bores in the nut, can be screwed in as a complete structural unit and are accordingly completely interchangeable.
  • a preferred embodiment of the invention provides ring lines connecting the hydraulic cylinders to one another. This allows the actuating pistons to synchronize when the displacement pressure is applied to them.
  • the support ring has three ring lines, each of which is assigned a central media coupling in the form of a quick-connect plug-in coupling.
  • the actuating pistons could alternatively be designed with a spring return.
  • the clamp connection opens into a pressure chamber formed between each hydraulic cylinder and a sleeve surrounding the actuating piston.
  • the sleeve thus acted upon from the outside with a hydraulic pressure - approximately 500 bar - fixes the actuating piston in its position, so that the high straightening forces cannot bring about an undesirable change in position.
  • the support ring is advantageously arranged on a feather key and is braced from one side onto a threaded section of a mating ring which surrounds the straightening pin of the straightening shaft, it can on the one hand be quickly and easily installed and fixed; on the other hand, there is automatic positioning in such a way that the hydraulic cylinder of the support ring and the threaded bolts define the straightening disk, which is also guided on a feather key, that is to say they lie opposite one another.
  • an axial chamber bore in the support ring can be provided with a displacement sensor, to which a magnet is assigned in the straightening disk.
  • the chamber bore can be provided on the same pitch circle as the circumferentially distributed bores for the hydraulic cylinders in the end face of the support ring, which simplifies production, since all bores can be drilled or produced in one operation.
  • the straightening pin 4 of a lower straightening shaft 1 is shown in FIG. 1 of a straightening machine which has upper and lower straightening shafts 1 with straightening disks 2, 3 arranged thereon; the upper straightening disks 2a, 3a interacting with the lower straightening disks 2, 3 for straightening a hot-rolled hyper beam 5 are only indicated schematically.
  • a clamping head 6 known as such, with the aid of which a mounting bush 7 accommodating the straightening disks 2, 3 can be braced against the straightening pin 4.
  • the mounting bushing 7 is designed with a wedge guide 8 on which the right-hand alignment disk 3 in FIG. 1 can be adjusted outwards.
  • a displacement unit 18 For displacement there is a displacement unit 18 between the straightening discs 2, 3 (or 2a, 3a).
  • This consists of a support ring 20 provided with a groove 19 (cf. FIG. 3), which distributes a total of twelve chamber bores 21 over the circumference of its annular surface or 22, of which all but one chamber bore 22 accommodate a hydraulic cylinder 23 with an actuating piston 24 arranged therein (cf. FIGS. 1 and 2).
  • the support ring 20 is arranged on the key 13, which also guides the left-hand directional disk 2, of the mounting bush 7; its ring surface facing the right, movable directional disk 3 is formed with a recess 40 which is concentric with the shaft bore and into which a counter ring 41 provided with an internal thread can be screwed onto an external thread section 25 of the mounting bush 7.
  • axially adjustable straightening disk 3 26 threaded bolts 27 are arranged in axial bores, which are screwed into the actuating piston 24.
  • the actuating pistons 24 are enclosed over part of their length by a sleeve 28, and a pressure chamber 29 is formed between the hydraulic cylinder 23 and the sleeve 28 and is connected to a ring line 31 via a transverse bore 30 .
  • the support ring 20 also has two further ring lines 32, 33 which are designed as pressure medium connections in the form of transverse bores 34, 35 leading to the hydraulic cylinders 23 for an actuating and a return stroke.
  • the sleeve 28 is pressed against the actuating piston 24 by introducing hydraulic fluid supplied via the ring line 31 and the transverse bores 30 into the pressure chamber 29. It is understood that all pressure rooms are sealed.
  • a simple connection of the ring lines 31 to 33, which supply all the hydraulic cylinders 23 centrally, to a pressure medium source is achieved by a connection 37 provided in the support ring 20 for a plug-in coupling;
  • Each ring line 31, 32, 33 is assigned a plug-in coupling connection 37, which is connected to the respective ring line via a distributor bore 38.
  • a displacement sensor 39 is accommodated in the chamber bore 22 of the supporting ring 20, as indicated schematically in FIG. 3, to which a magnet (not shown) is assigned in the straightening disk 3.

Abstract

The straightening machine for rolled beams, in partic. hyper-beams, incorporates axially adjustable straightening disks which are mounted on a shaft (1) and contact beam flanges from inside, and are used for straightening at least one of the two beam flanges. The machine is characterised by the fact that a carrier ring (20) with several hydraulic cylinders (23) uniformly distributed over its circumference is located between the straightening disks (2,3), with the piston rods (24) attached to one (3) of the disks. The hydraulic cylinders (23) are screwed into the carrier ring (20). These cylinders are connected to one another by means of a ring channel for the pressure medium. They are provided with connections for the pressure medium for setting, retraction and locking of the piston. Alternatively, retraction of the piston takes place by means of a spring. The carrier ring has an axial bore with a displacement sensor.

Description

Die Erfindung betrifft eine Richtmaschine für gewalzte Träger, insbesondere Hyper-Beams, bei der mindestens eine der beiden den Trägerflanschen von innen her anliegenden, von einer Richtwelle getragenen Richtscheiben axial verstellbar ist.The invention relates to a straightening machine for rolled beams, in particular hyper-beams, in which at least one of the two straightening disks which bear against the beam flanges from the inside and are supported by a straightening shaft can be adjusted axially.

Eine Richtwelle für Richtmaschinen dieser Art ist durch die DE-35 22 976 A1 bekanntgeworden. Mit dieser Richtmaschine werden Schienen gerichtet. Vor allem jedoch bei zu richtenden warmgewalzten Doppel-T-Trägern bzw. Hyper-Beams ist zu beachten, daß diese ein baureihenabhängiges konstantes Höhenmaß besitzen, während hingegen die Flanschdicken variieren können. Die Festlegung der Bauhöhe H ermöglicht im Stahlhochbau optimierte Anschlüsse (Knotenbleche) der Träger mit unterschiedlichen Widerstandsmomenten. Damit sich Hyper-Beams mit verschiedenen Flanschdicken walzen lassen, ist es bekannt, in Trägerstraßen die Walzscheiben der Walze in den Walzgerüsten so zu verstellen, daß einerseits das konstante Höhenmaß des Trägers eingehalten wird, andererseits dennoch unterschiedliche Flanschdicken gewalzt werden können. Die Verstellzeit am Walzgerüst beträgt hierbei etwa 30 Sekunden.A straightening shaft for straightening machines of this type has become known from DE-35 22 976 A1. This straightening machine is used to straighten rails. Above all, however, with hot-rolled double-T beams or hyper-beams to be straightened, it should be noted that they have a constant height dimension depending on the series, whereas the flange thicknesses can vary. The determination of the height H enables optimized connections (gusset plates) of the girders with different resistance moments in steel buildings. So that hyper beams can be rolled with different flange thicknesses, it is known to adjust the rolling disks of the roll in the roll stands in carrier trains so that on the one hand the constant height dimension of the carrier is maintained, and on the other hand different flange thicknesses can still be rolled. The adjustment time on the roll stand is about 30 seconds.

Die momentane Richtpraxis bei einer der Trägerstraße nachgeschalteten Richtmaschine sieht vor, daß die Träger auf den Flanschen liegend in die Richtmaschine gefahren werden und dann mit dem Steg über die Richtscheiben laufen. Das bedeutet, daß die Flansche während des Richtens plastisch verformt werden müssen und alle benötigten Richtkräfte über den Steg sowie den Übergangsradius vom Steg zu den Flanschen in die Flansche geleitet werden. Da durch die Verformung des Steges auch die Flansche zu atmen beginnen und eine axiale Kraft - Einklemmen des Trägers - auf die Richtscheiben ausüben, ist eine axial stabile Konstruktion erforderlich. Die Richtscheiben werden daher über eine Distanzbuchse bzw. Distanzscheiben, dem Kammermaß entsprechend, fest auf eine Montagebuchse montiert und bei Bedarf komplett gewechselt. Diese Montagebuchseneinheit wird direkt auf die Richtwelle gesetzt und dort axial mittels einer Spannmutter bzw. eines Spannkopfes gespannt. Bei einem aufgrund unterschiedlicher Flanschdicken geänderten Kammermaß ist das gleichbedeutend mit einer sehr zeitaufwendigen Umrüstzeit, da jede Kammermaßabweichung zwangsläufig zu einem Wechsel der Montagebuchseneinheit führt.The current straightening practice in a straightening machine downstream of the carrier line provides that the beams are moved into the straightening machine lying on the flanges and then run over the straightening disks with the web. This means that the flanges have to be plastically deformed during straightening and all the required straightening forces are passed through the web and the transition radius from the web to the flanges in the flanges. Since the flanges also begin to breathe due to the deformation of the web and exert an axial force - clamping the carrier - on the straightening discs, an axially stable construction is required. The straightening disks are therefore fixed to a mounting bushing using a spacer bushing or spacer washers, corresponding to the dimensions of the chamber, and completely replaced if necessary. This assembly bushing unit is placed directly on the straightening shaft and axially clamped there by means of a clamping nut or a clamping head. In the case of a changed chamber dimension due to different flange thicknesses, this is equivalent to a very time-consuming changeover time, since each chamber dimension deviation inevitably leads to a change in the assembly bushing unit.

Der Erfindung liegt daher die Aufgabe zugrunde, bei einer Richtmaschine der eingangs genannten Art eine einfache, wartungsfreundliche Möglichkeit zu schaffen, die es erlaubt, das Außen- bzw. Kammermaß der Richtscheiben schnell zu verändern.The invention is therefore based on the object of providing a simple, maintenance-friendly possibility in a straightening machine of the type mentioned at the outset, which allows the outer or chamber dimensions of the straightening disks to be changed quickly.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß zwischen den Richtscheiben ein Tragring für mehrere darin über den Umfang verteilte Hydraulikzylinder angeordnet ist, deren Stellkolben mit einer Richtscheibe verbunden sind. Dadurch, daß zumindest die eine Richtscheibe einer Richtwelle mit den Stellkolben verbunden ist, vorzugsweise über Gewindebolzen mittels einer Schraubverbindung, läßt sich diese Richtscheibe beim Beaufschlagen der Stellkolben mit dem Verschiebedruck - etwa 100 bar - axial verstellen und damit das Kammermaß an geänderte Flanschdicken anpassen, wobei es sich versteht, daß gleichermaßen eine Einstellung an eine Baureihe mit grundsätzlich anderen Träger-Abmessungen möglich ist. Die zweite Richtscheibe kann in ihrer einmal festgelegten Position verbleiben; gleichwohl ließen sich auch beide Richtscheiben axial verstellen, wozu Hydraulikzylinder von beiden Stirnflächen her im Tragring angeordnet werden könnten.This object is achieved in that a support ring for a plurality of hydraulic cylinders distributed over the circumference is arranged between the straightening disks, the actuating pistons of which are connected to a straightening disk. Characterized in that at least one of the straightening disks of a straightening shaft is connected to the actuating piston, preferably via threaded bolts by means of a screw connection, this straightening disk can be axially adjusted when the actuating piston is subjected to the displacement pressure - approximately 100 bar - and thus adapt the chamber dimensions to changed flange thicknesses, whereby it goes without saying that an adjustment to a series with fundamentally different carrier dimensions is equally possible. The second straightening disc can remain in its once defined position; nevertheless, both straightening disks could also be adjusted axially, for which purpose hydraulic cylinders could be arranged in the supporting ring from both end faces.

Die vorteilhaft in die Mutter eingeschraubten, und folglich als Einschraubelemente ausgebildeten Hydraulikzylinder, die sich somit in Bohrungen der Mutter befinden, sind als komplette Baueinheit einschraub- und damit entsprechend komplett austauschbar.The hydraulic cylinders, which are advantageously screwed into the nut and consequently designed as screw-in elements, and are therefore located in bores in the nut, can be screwed in as a complete structural unit and are accordingly completely interchangeable.

Eine bevorzugte Ausgestaltung der Erfindung sieht die Hydraulikzylinder miteinander verbindende Ringleitungen vor. Dies gestattet einen Gleichlauf der Stellkolben, wenn diese mit dem Verschiebedruck beaufschlagt werden.A preferred embodiment of the invention provides ring lines connecting the hydraulic cylinders to one another. This allows the actuating pistons to synchronize when the displacement pressure is applied to them.

Es wird vorgeschlagen, daß zu den Hydraulikzylindern führende Druckmittelanschlüsse für einen Stell- und einen Rückhub sowie zur Klemmung der Stellkolben vorhanden sind. In diesem Fall besitzt der Tragring entsprechend drei Ringleitungen, denen jeweils eine zentrale Medienkupplung in Form einer schnell anzuschließenden Steckkupplung zugeordnet ist. Statt mit einem hydraulisch beaufschlagten Rückhub ließen sich die Stellkolben alternativ mit einer Federrückstellung ausbilden.It is proposed that pressure medium connections leading to the hydraulic cylinders are provided for an actuating and a return stroke as well as for clamping the actuating pistons. In this case, the support ring has three ring lines, each of which is assigned a central media coupling in the form of a quick-connect plug-in coupling. Instead of a hydraulically actuated return stroke, the actuating pistons could alternatively be designed with a spring return.

Eine Ausgestaltung sieht vor, daß der Klemmanschluß in einen zwischen jedem Hydraulikzylinder und einer die Stellkolben umgebenden Hülse ausgebildeten Druckraum mündet. Die somit von außen mit einem hydraulischen Druck - etwa 500 bar - beaufschlagte Hülse fixiert den Stellkolben in seiner Position, so daß die hohen Richtkräfte keine unerwünschte Lageveränderung bewirken können.One embodiment provides that the clamp connection opens into a pressure chamber formed between each hydraulic cylinder and a sleeve surrounding the actuating piston. The sleeve thus acted upon from the outside with a hydraulic pressure - approximately 500 bar - fixes the actuating piston in its position, so that the high straightening forces cannot bring about an undesirable change in position.

Wenn der Tragring vorteilhaft auf einer Paßfeder angeordnet und von einem von einer Seite her auf einen Gewindeabschnitt einer den Richtzapfen der Richtwelle umschließenden Montagebuchse aufgeschraubten Gegenring verspannt ist, läßt er sich einerseits schnell und einfach montieren sowie festlegen; andererseits ergibt sich selbsttätig eine Positionierung in der Weise, daß sich die Hydraulikzylinder des Tragringes und die Gewindebolzen der ebenfalls auf einer Paßfeder geführten Richtscheibe definiert, das heißt fluchtend gegenüberliegen.If the support ring is advantageously arranged on a feather key and is braced from one side onto a threaded section of a mating ring which surrounds the straightening pin of the straightening shaft, it can on the one hand be quickly and easily installed and fixed; on the other hand, there is automatic positioning in such a way that the hydraulic cylinder of the support ring and the threaded bolts define the straightening disk, which is also guided on a feather key, that is to say they lie opposite one another.

Um eine Positionskontrolle der Richtscheiben zu ermöglichen, kann eine axiale Kammerbohrung des Tragringes mit einem Weggeber versehen sein, dem in der Richtscheibe ein Magnet zugeordnet ist. Die Kammerbohrung läßt sich dabei auf demselben Teilkreis wie die umfangsverteilt in der Stirnfläche des Tragringes angeordneten Bohrungen für die Hydraulikzylinder vorsehen, was die Fertigung vereinfacht, denn alle Bohrungen lassen sich in einem Arbeitsgang aufbohren bzw. herstellen.In order to enable the position of the straightening disks to be checked, an axial chamber bore in the support ring can be provided with a displacement sensor, to which a magnet is assigned in the straightening disk. The chamber bore can be provided on the same pitch circle as the circumferentially distributed bores for the hydraulic cylinders in the end face of the support ring, which simplifies production, since all bores can be drilled or produced in one operation.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus den Ansprüchen und der nachfolgenden Beschreibung, in der ein in den Zeichnungen dargestelltes Ausführungsbeispiel des Gegenstandes der Erfindung näher erläutert ist. Es zeigen:

Figur 1
von einer nicht dargestellten Rollenrichtmaschine als Einzelheit die auf einem Richtzapfen einer Richtwelle angeordneten Richtscheiben mit einer erfindungsgemäßen Verstelleinheit, im Teilquerschnitt dargestellt;
Figur 2
als vergrößerte Einzelheit der Figur 1 die Richtscheiben mit der Verstelleinheit, im Teilquerschnitt dargestellt; und
Figur 3
als Einzelheit der hydraulischen Verstelleinheit die die Hydraulikzylinder aufnehmende Mutter, in der Vorderansicht.
Further features and advantages of the invention result from the claims and the following description, in which an exemplary embodiment of the subject matter of the invention illustrated in the drawings is explained in more detail. Show it:
Figure 1
from a roller straightening machine, not shown, as a detail, the straightening disks arranged on a straightening pin of a straightening shaft with an adjusting unit according to the invention, shown in partial cross section;
Figure 2
as an enlarged detail of Figure 1, the straightening disks with the adjusting unit, shown in partial cross section; and
Figure 3
as a detail of the hydraulic adjusting unit, the nut holding the hydraulic cylinder, in the front view.

Von einer Richtmaschine, die obere und untere Richtwellen 1 mit darauf angeordneten Richtscheiben 2, 3 aufweist, ist in Figur 1 der Richtzapfen 4 einer unteren Richtwelle 1 gezeigt; die zum Richten eines warmgewalzten Hyper-Beams 5 mit den unteren Richtscheiben 2, 3 zusammenwirkenden oberen Richtscheiben 2a, 3a sind nur schematisch angedeutet. Am freien Ende des drehbaren Richtzapfens 4 befindet sich ein als solcher bekannter Spannkopf 6, mit dessen Hilfe sich eine die Richtscheiben 2, 3 aufnehmende Montagebuchse 7 gegen den Richtzapfen 4 verspannen läßt. Die Montagebuchse 7 ist mit einer Keilführung 8 ausgebildet, auf der sich die in Figur 1 rechte Richtscheibe 3 nach außen verstellen läßt. Dies dann, wenn die Walzgerüste in einer der Richtmaschine vorgeschalteten Trägerstraße bei gleicher Bauhöhe 9 des Trägers 5 zum Walzen von Trägern mit einer geringerer Dicke des Flansches 11 umgerüstet werden, so daß sich entsprechend das Kammermaß 12 verändert. Es müssen dann nämlich die den Flanschen 11 von innen her und den Steg 10 von oben und unten anliegenden Richtscheiben 2, 3 entsprechend weiter auseinander- oder zusammengefahren werden. Die in Figur 1 linke Richtscheibe 3 ist im Ausführungsbeispiel stationär auf einer Paßfeder 13 der Montagebuchse 7 angeordnet; sie stützt sich gegen eine Beilage 14 ab.The straightening pin 4 of a lower straightening shaft 1 is shown in FIG. 1 of a straightening machine which has upper and lower straightening shafts 1 with straightening disks 2, 3 arranged thereon; the upper straightening disks 2a, 3a interacting with the lower straightening disks 2, 3 for straightening a hot-rolled hyper beam 5 are only indicated schematically. At the free end of the rotatable straightening pin 4 there is a clamping head 6 known as such, with the aid of which a mounting bush 7 accommodating the straightening disks 2, 3 can be braced against the straightening pin 4. The mounting bushing 7 is designed with a wedge guide 8 on which the right-hand alignment disk 3 in FIG. 1 can be adjusted outwards. This is the case when the rolling stands are converted in a carrier line upstream of the straightening machine with the same overall height 9 of the carrier 5 for rolling carriers with a smaller thickness of the flange 11, so that the chamber dimension 12 changes accordingly. The flanges 11, the flanges 11 from the inside and the web 10 from above and below must then be moved further apart or moved together accordingly. The left-hand straightening disk 3 in FIG. 1 is arranged stationary on a feather key 13 of the mounting bush 7 in the exemplary embodiment; it is supported against an insert 14.

Wie sich aus Figur 1 weiter ergibt, ist es gleichermaßen möglich, die äußere, rechte Richtscheibe 3 auch bei einer baureihenbedingt wechselnden Abmessung der Bauhöhe 9 zu verstellen, wie für den nahezu mit doppelter Bauhöhe als der Hyper-Beams 5 gewalzten strichpunktiert angedeuteten Träger 15 dargestellt. In diesem Fall ist es erforderlich, zuvor entsprechend der Baureihe angepaßte Richt- und Distanzscheiben auf der Montagebuchse 7 anzubringen. Ein zwischen einem Buchsenkörper 16 des Spannkopfes 6 und der rechten Richtscheibe 3 vorgesehener Faltenbalg 17 schützt das freie Ende der Keil- bzw. Paßfederführung 8 der Richtscheibe 3.As can further be seen from FIG. 1, it is equally possible to adjust the outer, right directional disk 3 even with a dimension of the structural height 9 that changes as a result of the series, as shown for the beam 15 indicated by dash-dotted lines, which is rolled almost twice as high as the hyper beams 5 . In this case, it is necessary to fit the alignment and spacer disks previously adapted to the series on the mounting bush 7. An between A bellows 17 provided on a socket body 16 of the clamping head 6 and the right straightening disk 3 protects the free end of the wedge or key guide 8 of the straightening disk 3.

Zum Verschieben befindet sich zwischen den Richtscheiben 2, 3 (bzw. 2a, 3a) eine Verschiebeeinheit 18. Diese besteht aus einem mit einer Nut 19 versehenen Tragring 20 (vgl. Figur 3), der auf dem Umfang seiner Kreisringfläche verteilt insgesamt zwölf Kammerbohrungen 21 bzw. 22 aufweist, von denen bis auf die eine Kammerbohrung 22 alle anderen einen Hydraulikzylinder 23 mit einem darin angeordneten Stellkolben 24 aufnehmen (vgl. die Figuren 1 und 2). Der Tragring 20 ist auf der auch die linke Richtscheibe 2 führenden Paßfeder 13 der Montagebuchse 7 angeordnet; seine der rechten, beweglichen Richtscheibe 3 zugewandte Ringfläche ist mit einer zur Wellenbohrung konzentrischen Ausnehmung 40 ausgebildet, in die sich ein mit einem Innengewinde versehener Gegenring 41 auf einen Außengewindeabschnitt 25 der Montagebuchse 7 einschrauben läßt. In der rechten, axial zu verstellenden Richtscheibe 3 sind in Axialbohrungen 26 Gewindebolzen 27 angeordnet, die in die Stellkolben 24 eingeschraubt sind.For displacement there is a displacement unit 18 between the straightening discs 2, 3 (or 2a, 3a). This consists of a support ring 20 provided with a groove 19 (cf. FIG. 3), which distributes a total of twelve chamber bores 21 over the circumference of its annular surface or 22, of which all but one chamber bore 22 accommodate a hydraulic cylinder 23 with an actuating piston 24 arranged therein (cf. FIGS. 1 and 2). The support ring 20 is arranged on the key 13, which also guides the left-hand directional disk 2, of the mounting bush 7; its ring surface facing the right, movable directional disk 3 is formed with a recess 40 which is concentric with the shaft bore and into which a counter ring 41 provided with an internal thread can be screwed onto an external thread section 25 of the mounting bush 7. In the right, axially adjustable straightening disk 3 26 threaded bolts 27 are arranged in axial bores, which are screwed into the actuating piston 24.

Wie sich aus der vergrößerten Darstellung gemäß Figur 2 ergibt, werden die Stellkolben 24 auf einer Teillänge von einer Hülse 28 umschlossen, und zwischen dem Hydraulikzylinder 23 und der Hülse 28 ist ein Druckraum 29 ausgebildet, der über eine Querbohrung 30 an eine Ringleitung 31 angeschlossen ist. Der Tragring 20 besitzt noch zwei weitere Ringleitungen 32, 33, die als zu den Hydraulikzylindern 23 führende Druckmittelanschlüsse in Form von Querbohrungen 34, 35 für einen Stell- und einen Rückhub ausgebildet sind. Die in Figur 2 (bzw. Figur 1) linke Ringleitung 33 versorgt hierbei über die Querbohrungen 34 kolbenflächenseitige Druckräume 36a und die Ringleitung 32 über die Querbohrungen 35 die ringflächenseitigen Druckräume 36b der Hydraulikzylinder 23, was bedeutet, daß bei Beaufschlagung der kolbenflächenseitigen Druckräume 36a eine Verstellbewegung nach rechts eingeleitet und die Richtscheibe 3 auf ihrer Paßfederführung 8 von der Richtscheibe 2 wegbewegt wird; der Rückhub bzw. das Aufeinanderzufahren der Richtscheiben 2, 3 geschieht durch Einleiten von Druckflüssigkeit in die ringflächenseitigen Druckräume 36b, worauf sich die Stellkolben 24 und damit die Richtscheibe 3 nach links bewegen. Zur Lagesicherung der Richtscheibe 3 in ihrer eingestellten Position wird durch Einleiten von über die Ringleitung 31 und die Querbohrungen 30 in den Druckraum 29 zugeführter Hydraulikflüssigkeit die Hülse 28 an den Stellkolben 24 angepreßt. Es versteht sich, daß sämtliche Druckräume abgedichtet sind.As can be seen from the enlarged representation according to FIG. 2, the actuating pistons 24 are enclosed over part of their length by a sleeve 28, and a pressure chamber 29 is formed between the hydraulic cylinder 23 and the sleeve 28 and is connected to a ring line 31 via a transverse bore 30 . The support ring 20 also has two further ring lines 32, 33 which are designed as pressure medium connections in the form of transverse bores 34, 35 leading to the hydraulic cylinders 23 for an actuating and a return stroke. The ring line 33 on the left in FIG. 2 (or FIG. 1) supplies pressure chambers 36a on the piston surface side via the transverse bores 34 and the ring line 32 supplies the pressure chambers 36b on the ring surface side of the hydraulic cylinders 23 via the cross bores 35, which means that an adjustment movement occurs when the pressure surfaces 36a on the piston surface side are acted upon initiated to the right and the target 3 its feather key guide 8 is moved away from the straightening disk 2; the return stroke or the moving together of the straightening disks 2, 3 takes place by introducing hydraulic fluid into the pressure chambers 36b on the ring surface side, whereupon the adjusting pistons 24 and thus the straightening disk 3 move to the left. To secure the position of the straightening disk 3 in its set position, the sleeve 28 is pressed against the actuating piston 24 by introducing hydraulic fluid supplied via the ring line 31 and the transverse bores 30 into the pressure chamber 29. It is understood that all pressure rooms are sealed.

Ein einfaches Anschließen der sämtliche Hydraulikzylinder 23 zentral versorgenden Ringleitungen 31 bis 33 an eine Druckmittelquelle wird durch einen in dem Tragring 20 vorgesehenen Anschluß 37 für eine Steckkupplung erreicht; jeder Ringleitung 31, 32, 33 ist ein Steckkupplungsanschluß 37 zugeordnet, der über eine Verteilerbohrung 38 an die jeweilige Ringleitung angeschlossen ist. Zur Positionskontrolle der eingestellten bzw. axial verschobenen Richtscheibe 3 ist in der Kammerbohrung 22 des Tragrings 20 ein Weggeber 39 untergebracht, wie in Figur 3 schematisch angedeutet, dem in der Richtscheibe 3 ein nicht gezeigter Magnet zugeordnet ist.A simple connection of the ring lines 31 to 33, which supply all the hydraulic cylinders 23 centrally, to a pressure medium source is achieved by a connection 37 provided in the support ring 20 for a plug-in coupling; Each ring line 31, 32, 33 is assigned a plug-in coupling connection 37, which is connected to the respective ring line via a distributor bore 38. To check the position of the adjusted or axially displaced straightening disk 3, a displacement sensor 39 is accommodated in the chamber bore 22 of the supporting ring 20, as indicated schematically in FIG. 3, to which a magnet (not shown) is assigned in the straightening disk 3.

Um einhergehend mit dem kurzfristigen Verstellen der Walzscheiben der Walzgerüste einer Trägerstraße ohne Zeitverlust auch ein Einstellen der nachgeschalteten Richtmaschine zu erreichen, braucht somit lediglich die für die gewünschte Stellbewegung mit Hydraulikflüssigkeit zu versorgende Ringleitung 32 oder 33 an die Druckmittelversorgung angeschlossen zu werden, woraufhin die Stellkolben 24 einen Stell- oder Rückhub durchführen und damit die Richtscheibe 3 in die gewünschte, durch den Weggeber 39 zu kontrollierende Position axial verstellen; anschließend wird die Ringleitung 31 beaufschlagt, so daß über die Hülsen 28 zur Positionssicherung ein Klemmdruck auf die Stellkolben 24 aufgebracht wird. Der Klemmdruck bleibt während des Richtprozesses erhalten.In order to achieve adjustment of the downstream straightening machine without loss of time, along with the short-term adjustment of the rolling disks of the rolling stands of a carrier train, only the ring line 32 or 33 to be supplied with hydraulic fluid for the desired actuating movement need be connected to the pressure medium supply, whereupon the actuating pistons 24 perform an actuating or return stroke and thus axially adjust the straightening disk 3 to the desired position to be checked by the displacement sensor 39; then the ring line 31 is acted on, so that a clamping pressure is applied to the actuating piston 24 via the sleeves 28 for securing the position. The clamping pressure is maintained during the straightening process.

Liste der BezugszeichenList of reference numbers

11
RichtwelleStraightening wave
2, 2a2, 2a
RichtscheibeStraightening disc
3, 3a3, 3a
RichtscheibeStraightening disc
44th
RichtzapfenStraightening pin
55
Hyper-BeamsHyper beams
66
SpannkopfClamping head
77
MontagebuchseAssembly bushing
88th
PaßfederführungFeather key guide
99
BauhöheOverall height
1010th
Stegweb
1111
Flanschflange
1212th
KammermaßChamber size
1313
Paßfederadjusting spring
1414
Beilagegarnish
1515
Hyper-BeamsHyper beams
1616
BuchsenkörperSocket body
1717th
FaltenbalgBellows
1818th
VerschiebeeinheitDisplacement unit
1919th
NutGroove
2020th
TragringSupport ring
2121
KammerbohrungChamber bore
2222
KammerbohrungChamber bore
2323
HydraulikzylinderHydraulic cylinder
2424th
StellkolbenAdjusting piston
2525th
AußengewindeabschnittMale thread section
2626
AxialbohrungAxial bore
2727
GewindebolzenThreaded bolt
2828
HülseSleeve
2929
DruckraumPressure room
3030th
QuerbohrungCross hole
3131
RingleitungLoop
3232
RingleitungLoop
3333
RingleitungLoop
3535
DruckraumPressure room
36a, 36b36a, 36b
DruckraumPressure room
3737
AnschlußConnection
3838
VerteilerbohrungDistributor hole
3939
WeggeberDisplacement sensor
4040
AusnehmungRecess
4141
GegenringMating ring

Claims (10)

Richtmaschine für gewalzte Träger, insbesondere Hyper-Beams, bei der mindestens eine der beiden den Trägerflanschen von innen her anliegenden, von einer drehbaren Richtwelle getragenen Richtscheiben axial verstellbar ist,
dadurch gekennzeichnet,
daß zwischen den Richtscheiben (2, 3) ein Tragring (20) für mehrere darin über den Umfang verteilte Hydraulikzylinder (23) angeordnet ist, deren Stellkolben (24) mit einer Richtscheibe (3) verbunden sind.Straightening machine for rolled beams, in particular hyper-beams, in which at least one of the two straightening disks that lie against the inside of the beam flanges and are supported by a rotatable straightening shaft can be adjusted axially,
characterized,
that between the straightening disks (2, 3) a support ring (20) is arranged for several hydraulic cylinders (23) distributed over the circumference therein, the adjusting pistons (24) of which are connected to a straightening disk (3). Richtmaschine nach Anspruch 1,
dadurch gekennzeichnet,
daß die Hydraulikzylinder (23) in den Tragring (20) eingeschraubt sind.Straightening machine according to claim 1,
characterized,
that the hydraulic cylinders (23) are screwed into the support ring (20). Richtmaschine nach Anspruch 1 oder 2,
gekennzeichnet durch
die Hydraulikzylinder (23) miteinander verbindende Ringleitungen (31, 32, 33).Straightening machine according to claim 1 or 2,
marked by
the hydraulic lines (23) connecting ring lines (31, 32, 33). Richtmaschine nach Anspruch 3,
dadurch gekennzeichnet,
daß zu den Hydraulikzylindern führende Druckmittelanschlüsse (33, 34 bzw. 32, 35 bzw. 31, 30) für einen Stell- und einen Rückhub sowie zur Klemmung der Stellkolben (24) vorhanden sind.Straightening machine according to claim 3,
characterized,
that pressure medium connections (33, 34 or 32, 35 or 31, 30) leading to the hydraulic cylinders are provided for an actuating and a return stroke as well as for clamping the actuating piston (24). Richtmaschine nach Anspruch 3,
dadurch gekennzeichnet,
daß die Stellkolben (24) mit einer Federrückstellung ausgebildet sind.Straightening machine according to claim 3,
characterized,
that the actuating pistons (24) are designed with a spring return. Richtmaschine nach Anspruch 4 oder 5,
dadurch gekennzeichnet,
daß der Klemmanschluß (30, 31) in einen zwischen jedem Hydraulikzylinder (23) und einer die Stellkolben (24) umgebenden Hülse (28) ausgebildeten Druckraum (29) mündet.Straightening machine according to claim 4 or 5,
characterized,
that the clamping connection (30, 31) opens into a pressure chamber (29) formed between each hydraulic cylinder (23) and a sleeve (28) surrounding the actuating piston (24). Richtmaschine nach einem oder mehreren der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
daß in der axialbeweglichen Richtscheibe (3) angeordnete Gewindebolzen (27) in die Stellkolben (24) eingeschraubt sind.Straightening machine according to one or more of claims 1 to 6,
characterized,
that threaded bolts (27) arranged in the axially movable straightening disk (3) are screwed into the adjusting pistons (24). Richtmaschine nach einem oder mehreren der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß der Tragring (20) auf einer Paßfeder (13) angeordnet und von einem von einer Seite her auf einen Gewindeabschnitt einer den Richtzapfen (4) der Richtwelle (1) umschließenden Montagebuchse (7) aufgeschraubten Gegenring (41) verspannt ist.Straightening machine according to one or more of claims 1 to 7,
characterized,
that the support ring (20) is arranged on a feather key (13) and is tensioned from one side onto a threaded section of a mounting bush (7) surrounding the alignment pin (4) of the alignment shaft (1) and screwed counter ring (41). Richtmaschine nach einem oder mehreren der Ansprüche 1 bis 8,
dadurch gekennzeichnet,
daß die axialbewegliche Richtscheibe (3) auf einer Paßfederführung (8) der Montagebuchse (7) angeordnet ist.Straightening machine according to one or more of claims 1 to 8,
characterized,
that the axially movable directional disc (3) is arranged on a feather key guide (8) of the mounting bush (7). Richtmaschine nach einem oder mehreren der Ansprüche 1 bis 9,
dadurch gekennzeichnet,
daß eine axiale Kammerbohrung (22) des Tragrings (20) mit einem Weggeber (39) versehen ist.Straightening machine according to one or more of claims 1 to 9,
characterized,
that an axial chamber bore (22) of the support ring (20) is provided with a displacement sensor (39).
EP95100415A 1993-07-21 1995-01-13 Straightening machine for rolled beams, in particular hyper-beams Expired - Lifetime EP0721810B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE4324416A DE4324416A1 (en) 1993-07-21 1993-07-21 Straightening machine for rolled girders, particularly hyper beams
AT95100415T ATE164788T1 (en) 1993-07-21 1995-01-13 STRAIGHTENING MACHINE FOR ROLLED BEAMS, ESPECIALLY HYPER-BEAMS
EP95100415A EP0721810B1 (en) 1993-07-21 1995-01-13 Straightening machine for rolled beams, in particular hyper-beams
DE59501843T DE59501843D1 (en) 1993-07-21 1995-01-13 Straightening machine for rolled beams, especially hyper beams
ES95100415T ES2115271T3 (en) 1993-07-21 1995-01-13 STRAIGHTENING MACHINE FOR LAMINATED BEAMS, ESPECIALLY HYPER-BEAMS.
JP00591895A JP3558398B2 (en) 1993-07-21 1995-01-18 Straightening machine for rolled beams
US08/375,906 US5644939A (en) 1993-07-21 1995-01-20 Straightening machine for rolled beams

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4324416A DE4324416A1 (en) 1993-07-21 1993-07-21 Straightening machine for rolled girders, particularly hyper beams
EP95100415A EP0721810B1 (en) 1993-07-21 1995-01-13 Straightening machine for rolled beams, in particular hyper-beams
JP00591895A JP3558398B2 (en) 1993-07-21 1995-01-18 Straightening machine for rolled beams
US08/375,906 US5644939A (en) 1993-07-21 1995-01-20 Straightening machine for rolled beams

Publications (2)

Publication Number Publication Date
EP0721810A1 true EP0721810A1 (en) 1996-07-17
EP0721810B1 EP0721810B1 (en) 1998-04-08

Family

ID=27435796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95100415A Expired - Lifetime EP0721810B1 (en) 1993-07-21 1995-01-13 Straightening machine for rolled beams, in particular hyper-beams

Country Status (6)

Country Link
US (1) US5644939A (en)
EP (1) EP0721810B1 (en)
JP (1) JP3558398B2 (en)
AT (1) ATE164788T1 (en)
DE (2) DE4324416A1 (en)
ES (1) ES2115271T3 (en)

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CN105834253A (en) * 2016-06-12 2016-08-10 马鞍山安麦创新技术有限公司 Prestress locking mechanism of combined roll collar of section steel straightening machine

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US6823707B2 (en) 2002-04-04 2004-11-30 Abl Fabricators, Inc. Mobile flange press and method
DE10329525B4 (en) * 2003-06-30 2006-02-09 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH Method and device for directing a warm profile and method for producing a standardized profile
JP7088149B2 (en) * 2019-08-30 2022-06-21 Ｊｆｅスチール株式会社 Bending correction method and correction device
CN112091095A (en) * 2020-10-13 2020-12-18 阜阳鹏程人防工程防护设备有限公司 Straightening processing technology for door frame of civil air defense door
WO2023138888A1 (en) 2022-01-24 2023-07-27 Sms Group Gmbh Straightening machine and method for straightening a steel profile

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Also Published As

Publication number Publication date
JP3558398B2 (en) 2004-08-25
US5644939A (en) 1997-07-08
DE59501843D1 (en) 1998-05-14
JPH08197141A (en) 1996-08-06
EP0721810B1 (en) 1998-04-08
ATE164788T1 (en) 1998-04-15
DE4324416A1 (en) 1995-01-26
ES2115271T3 (en) 1998-06-16

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