EP3525945A1 - Cross-rolling mill - Google Patents

Cross-rolling mill

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Publication number
EP3525945A1
EP3525945A1 EP17781472.0A EP17781472A EP3525945A1 EP 3525945 A1 EP3525945 A1 EP 3525945A1 EP 17781472 A EP17781472 A EP 17781472A EP 3525945 A1 EP3525945 A1 EP 3525945A1
Authority
EP
European Patent Office
Prior art keywords
roller
mill
roll
axis
slanting
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
EP17781472.0A
Other languages
German (de)
French (fr)
Other versions
EP3525945B1 (en
Inventor
Walter Kirchner
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 Group GmbH
Original Assignee
SMS Group GmbH
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 Group GmbH filed Critical SMS Group GmbH
Priority to PL17781472T priority Critical patent/PL3525945T3/en
Publication of EP3525945A1 publication Critical patent/EP3525945A1/en
Application granted granted Critical
Publication of EP3525945B1 publication Critical patent/EP3525945B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/06—Rolling hollow basic material, e.g. Assel mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/20—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a non-continuous process,(e.g. skew rolling, i.e. planetary cross rolling)
    • 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
    • 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
    • B21B13/008—Skew rolling stands, e.g. for rolling rounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/32—Roll changing stools
    • 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
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • 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
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/14—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by pivotally displacing

Definitions

  • the invention relates to a cross rolling mill according to the preamble of claim 1.
  • This object is achieved according to the invention for an initially mentioned skew rolling mill with the characterizing features of claim 1. Due to the pivotability of the stapes a simple and low-friction position compensation between the roller shaft and the actuator is possible, which can be done in particular in several directions.
  • the number of roll shafts may preferably be two, three or even four.
  • the cross rolling mill can proceed according to the Assel or at least operate similarly to the Assel method.
  • An orientation of the roll axis about the adjusting axes is meant geometrically according to the invention, so that the adjusting axes no physical waves or To include something similar.
  • the adjusting axes can preferably be aligned perpendicular to the roll axis, in particular also perpendicular to one another.
  • An actuator may be within the meaning of the invention, each actuator by means of which the roller axis is adjusted.
  • hydraulic cylinders or electromechanical actuators may be provided.
  • the actuator may be configured to apply the rolling force to the workpiece.
  • the roller shaft has at each of two opposite ends at least one pivot bearing and a pivotable compression stilt. In this way, a complete and particularly friction adjustable support can be made via the pivotable compression stilts.
  • roller shaft In the interest of a simple and effective construction, it is generally advantageous for the roller shaft to be accommodated on a roller mill, wherein the roller frame is movably mounted about the adjusting axles and the pressure stilts are supported relative to the roller mill.
  • the roller mill can be designed as a rigid frame, but movable relative to a frame frame.
  • roller mill In an advantageous detailed design of the roller mill is thereby acted upon by means of a preferably hydraulic tension member against the direction of the rolling force. Together with the forces of the actuators as a total of a play-free mounting of the roller is achieved in their respective employment.
  • the wedge on at least one end has a bearing dome pivotable with respect to the wedge. This allows a simple lateral offset of a Point of support of the stapes or the bearing dome.
  • the bearing dome can be easily replaced as a wearing part.
  • the stapes is pivotable from a neutral position in each spatial direction by an angle about a pivot point.
  • At least two roll shafts preferably at least three roll shafts, particularly preferably all of the roll shafts of the cross rolling mill, are adjustably mounted according to one of the features described above.
  • FIG. 1 shows a partial sectional view of a skew rolling mill according to the invention.
  • FIG. 2 shows a schematic sectional view of a pivotable compression stilt along the section line A-A from FIG. 3.
  • Fig. 3 shows a plan view of the wedge in Fig. 2 in four extreme pivotal positions.
  • the skew rolling mill according to the invention shown in FIG. 1 comprises three roll shafts 1 of identical design, of which only one can be seen in the illustration.
  • the roller shaft 1 has a roller body 2, which acts radially on a roller axis W or in the direction of a rolling force on a workpiece.
  • the roller shaft 1 is rotated about a gimbal-hinged drive shaft 3 about the roll axis W.
  • a rolling bearing 4, 5 supporting the rolling forces is arranged in each case.
  • the pivot bearings 4, 5 are in turn received and supported on a roller mill 6, wherein the roller mill 6 is held by means of a bearing 7 movable relative to a frame 8 of the cross rolling mill.
  • the roller mill is adjustable pivotable both about a first adjusting axis S1 and about a second adjusting axis S2.
  • the second adjusting axis S2 extends in the illustration of FIG. 1 perpendicular to the plane of the drawing.
  • the adjusting axes S1, S2 and the roll axis are perpendicular to each other, but need not intersect.
  • the roller mill 6 is formed as a rigid, in cross-section substantially yoke-shaped component. Two support areas 6a of the roll mill, on the one hand, hold the pivot bearings 4, 5 and, on the other hand, are supported on an intermediate member 9, 10 on the other hand.
  • the intermediate links are disposed between the roller mill 6 and the rotary bearings 4, 5 on the one hand and one of two actuators 1 1, 12 on the other hand.
  • the actuators 1 1, 12 can also transmit the force exerted on the workpiece rolling force.
  • the roller mill 6 is also pulled by a designed as a hydraulic cylinder tension member 13 against the rolling force, so that the roller mill 6 is always pressed firmly against the actuators.
  • the force of the tension member is smaller than the force of the actuators and ensures a play-free positioning of the roller shaft 1 or enables a release of the workpiece.
  • the intermediate members 9, 10 are each executed in the same design and are used to compensate for tilting and offset movements occurring between the actuators 1 1, 12 on the one hand and the roller mill 6 and the roller shaft 1 on the other hand.
  • the intermediate members 9, 10 each comprise a compression stilt 14, 15.
  • the compression stilts 14, 15 are each pivotable in several directions. This is achieved by dome-shaped bearings of the pressure stilts 14, 15.
  • the pressure stilts are each provided on the actuator side with a concave spherical surface 14a, 15a, wherein a corresponding convex spherical surface is provided on the actuator.
  • the pressure stilts are also provided with a concave dome surface 14b, 15b.
  • a substantially hemispherical bearing dome 16, 17 is inserted into the end of the stapes 14, 15. This is pivotable over the dome-shaped surface 14b, 15b with respect to the pressure wedge and rests against the roller mill 6 with a flat counter surface. In this way, if necessary, a lateral offset of the counter surface relative to the roll mill can be made possible. It is understood that in other embodiments, inversely curved dome surfaces may be provided, so for example, convex Kalotten vom on the pressure stilts 14, 15 and correspondingly concave Kalottenvid on the actuators 14, 15 and / or the bearing cups 16, 17th
  • the pressure stilts 14, 15 are pivotable from a neutral position in each spatial direction by a minimum angle about a pivot point.
  • the fulcrum lies in each case in the geometric center of the actuator-side spherical surface.
  • FIG. 3 In which a compression stilt 14, 15 is shown, which is pivoted in four different exemplary spatial directions at an angle up to a stop. In each case, a maximum lateral offset d of the mating surfaces of the bearing cups 16, 17 is made possible by the pivoting.

Abstract

The invention relates to a cross-rolling mill, comprising a plurality of roll shafts (1), each of which exerts essentially radially directed rolling force onto a workpiece, wherein the orientation of a roll axis (W) of at least one of the roll shafts (1) can be configurably changed about a first adjustment axis (S1) and about a second adjustment axis (S2), wherein an intermediate member (9, 10) is arranged between a pivot bearing (4, 5) of the roll shaft (1) and an adjustment member (11, 12), wherein the intermediate member (9, 10) comprises a push piece (14, 15) that transfers the rolling force, which push piece can be pivoted in a plurality of directions by means of a dome-shaped bearing surface (14a, 14b, 15a, 15b).

Description

Schrägwalzwerk  Piercing mill
Die Erfindung betrifft ein Schrägwalzwerk nach dem Oberbegriff des Anspruchs 1 . The invention relates to a cross rolling mill according to the preamble of claim 1.
DE 34 06 841 A1 beschreibt ein Dreiwalzen-Kegelschrägwalzwerk, bei dem zur Anstellung der Walzenwellen jeweils eine Verschwenkung um eine Achse erfolgen kann. Bei weiteren bekannten Schrägwalzanordnungen, zum Beispiel nach dem Asselverfahren, kann die Anstellung einer Walzenwelle auch um zwei verschiedene Achsen erfolgen. Zur Entkoppelung der bei der Verstellung auftretenden Querkräfte zwischen den Kontaktflächen sind dabei Zwischenelemente erforderlich, die die Bauhöhe der Anstellung vergrößern. DE 34 06 841 A1 describes a three-roll cone rolling mill, in each case a pivoting about an axis can be carried out for the employment of the roller shafts. In other known Schrägwalzanordnungen, for example by the Asselverfahren, the employment of a roll shaft can also take place about two different axes. To decouple occurring in the adjustment transverse forces between the contact surfaces while intermediate elements are required, which increase the height of the employment.
Es ist die Aufgabe der Erfindung, ein Schrägwalzwerk anzugeben, bei dem eine reibungsarme Verstellung der Walzenwellen ermöglicht ist. It is the object of the invention to provide a cross rolling mill, in which a low-friction adjustment of the roller shafts is possible.
Diese Aufgabe wird für ein eingangs genanntes Schrägwalzwerk erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst. Durch die Verschwenkbarkeit der Druckstelze ist ein einfacher und reibungsarmer Positionsausgleich zwischen der Walzenwelle und dem Stellglied ermöglicht, der insbesondere in mehrere Richtungen erfolgen kann. Die Anzahl der Walzenwellen kann bevorzugt zwei, drei oder auch vier betragen. Insbesondere kann das Schrägwalzwerk nach dem Assel verfahren oder zumindest dem Asselverfahren ähnlich arbeiten. This object is achieved according to the invention for an initially mentioned skew rolling mill with the characterizing features of claim 1. Due to the pivotability of the stapes a simple and low-friction position compensation between the roller shaft and the actuator is possible, which can be done in particular in several directions. The number of roll shafts may preferably be two, three or even four. In particular, the cross rolling mill can proceed according to the Assel or at least operate similarly to the Assel method.
Eine Ausrichtung der Walzenachse um die Stellachsen ist im Sinne der Erfindung geometrisch gemeint, so dass die Stellachsen keine körperlichen Wellen oder Ähnliches umfassen müssen. Die Stellachsen können bevorzugt jeweils senkrecht zu der Walzenachse ausgerichtet sein, insbesondere auch senkrecht zueinander. An orientation of the roll axis about the adjusting axes is meant geometrically according to the invention, so that the adjusting axes no physical waves or To include something similar. The adjusting axes can preferably be aligned perpendicular to the roll axis, in particular also perpendicular to one another.
Ein Stellglied kann im Sinne der Erfindung jeder Aktuator sein, mittels dessen die Walzenachse verstellte wird. Insbesondere können hydraulische Zylinder oder auch elektromechanische Stellglieder vorgesehen sein. Das Stellglied kann allgemein bevorzugt dazu ausgelegt sein, die Walzkraft auf das Werkstück auszuüben. Bei einer bevorzugten Ausführungsform der Erfindung ist es vorgesehen, dass die Walzenwelle an zwei gegenüberliegenden Enden jeweils zumindest ein Drehlager und eine verschwenkbare Druckstelze aufweist. Hierdurch kann eine vollständige und besonders reibungsarm verstellbare Abstützung über die verschwenkbaren Druckstelzen erfolgen. An actuator may be within the meaning of the invention, each actuator by means of which the roller axis is adjusted. In particular, hydraulic cylinders or electromechanical actuators may be provided. Generally, the actuator may be configured to apply the rolling force to the workpiece. In a preferred embodiment of the invention, it is provided that the roller shaft has at each of two opposite ends at least one pivot bearing and a pivotable compression stilt. In this way, a complete and particularly friction adjustable support can be made via the pivotable compression stilts.
Allgemein vorteilhaft ist es im Interesse einer einfachen und effektiven Konstruktion vorgesehen, dass die Walzenwelle an einem Walzenstuhl aufgenommen ist, wobei der Walzenstuhl um die Stellachsen bewegbar gelagert ist und die Druckstelzen gegenüber dem Walzenstuhl abgestützt sind. Der Walzenstuhl kann dabei als in sich starrer, aber gegenüber einem Gerüst bewegbarer Rahmen ausgebildet sein. In the interest of a simple and effective construction, it is generally advantageous for the roller shaft to be accommodated on a roller mill, wherein the roller frame is movably mounted about the adjusting axles and the pressure stilts are supported relative to the roller mill. The roller mill can be designed as a rigid frame, but movable relative to a frame frame.
Bei einer vorteilhaften Detailgestaltung ist der Walzenstuhl dabei mittels eines bevorzugt hydraulischen Zugglieds entgegen der Richtung der Walzkraft kraftbeaufschlagt. Gemeinsam mit den Kräften der Stellglieder wird so insgesamt eine spielfreie Halterung der Walze in ihrer jeweiligen Anstellung erzielt. In an advantageous detailed design of the roller mill is thereby acted upon by means of a preferably hydraulic tension member against the direction of the rolling force. Together with the forces of the actuators as a total of a play-free mounting of the roller is achieved in their respective employment.
Bei einer bevorzugten Ausführungsform der Erfindung hat die Druckstelze an zumindest einem Ende eine gegenüber der Druckstelze schwenkbare Lagerkalotte. Dies erlaubt einen einfachen seitlichen Versatz eines Auflagepunktes der Druckstelze bzw. der Lagerkalotte. Zudem kann die Lagerkalotte auf einfache Weise als Verschleißteil ausgetauscht werden. In a preferred embodiment of the invention, the wedge on at least one end has a bearing dome pivotable with respect to the wedge. This allows a simple lateral offset of a Point of support of the stapes or the bearing dome. In addition, the bearing dome can be easily replaced as a wearing part.
Im Interesse einer variablen Anstellung ist es bevorzugt vorgesehen, dass die Druckstelze ausgehend von einer Neutralposition in jede Raumrichtung um einen Winkel um einen Drehpunkt verschwenkbar ist. In the interest of a variable employment, it is preferably provided that the stapes is pivotable from a neutral position in each spatial direction by an angle about a pivot point.
Allgemein vorteilhaft sind zumindest zwei Walzenwellen, bevorzugt zumindest drei Walzenwellen, besonders bevorzugt sämtliche der Walzenwellen des Schrägwalzwerks gemäß einem der vorhergehend beschriebenen Merkmale verstellbar gelagert. Generally advantageously, at least two roll shafts, preferably at least three roll shafts, particularly preferably all of the roll shafts of the cross rolling mill, are adjustably mounted according to one of the features described above.
Allgemein ergibt sich aus einer erfindungsgemäßen Lagerung der Walzenwelle oder der Walzenwellen, dass eine Kompensation radialer Bewegungen zur Stellachse vorliegt. Ebenso ist eine Kompensation von Winkeligkeitsabweichungen senkrecht zur Verstellachse ermöglicht. Zudem können Bauhöhe und damit Rahmengröße und Gewicht des Schrägwalzwerks durch die Erfindung reduziert werden. Durch die Erfindung werden Reibkräfte und Querkräfte der Anstellungskomponenten vermieden bzw. reduziert. Es ergibt sich zudem der Vorteil einer verbesserten Positioniergenauigkeit unter Last. Ferner ist das Schwingverhalten des Anstellungssystems verbessert und die Steifigkeit insgesamt erhöht. In general, it results from a bearing according to the invention of the roller shaft or the roller shafts that a compensation of radial movements to the control axis is present. Similarly, a compensation of angularity deviations is possible perpendicular to the adjustment axis. In addition, height and thus frame size and weight of the cross rolling mill can be reduced by the invention. By the invention, frictional forces and transverse forces of the Anstellungskomponenten be avoided or reduced. There is also the advantage of improved positioning accuracy under load. Furthermore, the vibration behavior of the employment system is improved and the overall rigidity is increased.
Weitere Vorteile und Merkmale ergeben sich aus dem nachfolgend beschriebenen Ausführungsbeispiel sowie aus den abhängigen Ansprüchen. Further advantages and features will become apparent from the embodiment described below and from the dependent claims.
Nachfolgend wird ein bevorzugtes Ausführungsbeispiel der Erfindung beschrieben und anhand der anliegenden Zeichnungen näher erläutert. Fig. 1 zeigt eine teilweise Schnittansicht eines erfindungsgemäßen Schrägwalzwerks. Hereinafter, a preferred embodiment of the invention will be described and explained in more detail with reference to the accompanying drawings. Fig. 1 shows a partial sectional view of a skew rolling mill according to the invention.
Fig. 2 zeigt eine schematische Schnittansicht einer verschwenkbaren Druckstelze entlang der Schnittlinie A-A aus Fig. 3.  FIG. 2 shows a schematic sectional view of a pivotable compression stilt along the section line A-A from FIG. 3.
Fig. 3 zeigt eine Draufsicht auf die Druckstelze in aus Fig. 2 in vier extremalen Schwenkpositionen.  Fig. 3 shows a plan view of the wedge in Fig. 2 in four extreme pivotal positions.
Das in Fig. 1 gezeigte erfindungsgemäße Schrägwalzwerk umfasst drei baugleich gelagerte Walzenwellen 1 , von denen in der Darstellung nur eine erkennbar ist. Die Walzenwelle 1 hat einen Walzenkörper 2, der radial zu einer Walzenachse W bzw. in Richtung einer Walzkraft auf ein Werkstück einwirkt. Die Walzenwelle 1 wird über eine kardanisch angelenkte Antriebswelle 3 um die Walzenachse W gedreht. Vor und hinter dem Walzenkörper 2 ist jeweils ein die Walzkräfte abstützendes Drehlager 4, 5 angeordnet. Die Drehlager 4, 5 sind ihrerseits an einem Walzenstuhl 6 aufgenommen und abgestützt, wobei der Walzenstuhl 6 mittels einer Lagerung 7 bewegbar gegenüber einem Rahmen 8 des Schrägwalzwerks gehalten ist. Dabei ist der Walzenstuhl sowohl um eine erste Stellachse S1 als auch um eine zweite Stellachse S2 einstellbar verschwenkbar. Die zweite Stellachse S2 verläuft in der Darstellung nach Fig. 1 senkrecht zu der Zeichenebene. Die Stellachsen S1 , S2 und die Walzenachse stehen jeweils senkrecht aufeinander, müssen sich aber nicht schneiden. Der Walzenstuhl 6 ist als starres, im Querschnitt im Wesentlichen jochförmiges Bauteil ausgeformt. Zwei Stützbereiche 6a des Walzenstuhls halten einerseits die Drehlager 4, 5 und sind andererseits an jeweils einem Zwischenglied 9, 10 abgestützt. Die Zwischenglieder sind zwischen dem Walzenstuhl 6 bzw. den Drehlagern 4, 5 einerseits und jeweils einem von zwei Stellgliedern 1 1 , 12 andererseits angeordnet. Über die Ausrichtung des Walzenstuhls 6 und somit der Drehlager 4, 5 erfolgt die Anstellung der Walze 1 . Hierzu werden die Stellglieder 1 1 , 12, die vorliegend als hydraulische Zylinder ausgebildet sind, jeweils positioniert. Die Stellglieder 1 1 , 12 können zudem die auf das Werkstück ausgeübte Walzkraft übertragen. The skew rolling mill according to the invention shown in FIG. 1 comprises three roll shafts 1 of identical design, of which only one can be seen in the illustration. The roller shaft 1 has a roller body 2, which acts radially on a roller axis W or in the direction of a rolling force on a workpiece. The roller shaft 1 is rotated about a gimbal-hinged drive shaft 3 about the roll axis W. In front of and behind the roller body 2, a rolling bearing 4, 5 supporting the rolling forces is arranged in each case. The pivot bearings 4, 5 are in turn received and supported on a roller mill 6, wherein the roller mill 6 is held by means of a bearing 7 movable relative to a frame 8 of the cross rolling mill. In this case, the roller mill is adjustable pivotable both about a first adjusting axis S1 and about a second adjusting axis S2. The second adjusting axis S2 extends in the illustration of FIG. 1 perpendicular to the plane of the drawing. The adjusting axes S1, S2 and the roll axis are perpendicular to each other, but need not intersect. The roller mill 6 is formed as a rigid, in cross-section substantially yoke-shaped component. Two support areas 6a of the roll mill, on the one hand, hold the pivot bearings 4, 5 and, on the other hand, are supported on an intermediate member 9, 10 on the other hand. The intermediate links are disposed between the roller mill 6 and the rotary bearings 4, 5 on the one hand and one of two actuators 1 1, 12 on the other hand. About the orientation of the roll mill 6 and thus the pivot bearing 4, 5, the employment of the roller 1. For this purpose, the actuators 1 1, 12, which are presently designed as hydraulic cylinders, respectively positioned. The actuators 1 1, 12 can also transmit the force exerted on the workpiece rolling force.
Der Walzenstuhl 6 wird zudem durch ein als hydraulischer Zylinder ausgebildetes Zugglied 13 entgegen der Walzkraft gezogen, so dass der Walzenstuhl 6 jederzeit fest gegen die Stellglieder gedrückt wird. Die Kraft des Zugglieds ist kleiner als die Kraft der Stellglieder und stellt eine spielfreie Positionierung der Walzenwelle 1 sicher bzw. ermöglicht eine Freigabe des Werkstücks. The roller mill 6 is also pulled by a designed as a hydraulic cylinder tension member 13 against the rolling force, so that the roller mill 6 is always pressed firmly against the actuators. The force of the tension member is smaller than the force of the actuators and ensures a play-free positioning of the roller shaft 1 or enables a release of the workpiece.
Die Zwischenglieder 9, 10 sind jeweils in gleicher Bauart ausgeführt und dienen der Kompensation von bei der Verstellung auftretenden Kipp- und Versatzbewegungen zwischen den Stellgliedern 1 1 , 12 einerseits und dem Walzenstuhl 6 bzw. der Walzenwelle 1 andererseits. Vorliegend umfassen die Zwischenglieder 9, 10 jeweils eine Druckstelze 14, 15. Die Druckstelzen 14, 15 sind jeweils in mehrere Richtungen verschwenkbar. Dies wird durch kalottenförmige Lagerungen der Druckstelzen 14, 15 erzielt. Vorliegend sind die Druckstelzen jeweils stellgliedseitig mit einer konkaven Kalottenfläche 14a, 15a versehen, wobei an dem Stellglied eine entsprechende konvexe Kalottenfläche vorgesehen ist. Auf der Seite der Walzenwelle sind die die Druckstelzen ebenfalls mit einer konkaven Kalottenfläche 14b, 15b versehen. Dabei ist eine im Wesentlichen halbkugelförmige Lagerkalotte 16, 17 in das Ende der Druckstelze 14, 15 eingesetzt. Diese ist über die kalottenförmige Fläche 14b, 15b gegenüber der Druckstelze verschwenkbar und liegt mit einer planen Gegenfläche an dem Walzenstuhl 6 an. Hierdurch kann bei Bedarf auch ein seitlicher Versatz der Gegenfläche gegenüber dem Walzenstuhl ermöglicht werden. Es versteht sich, dass bei anderen Ausführungsformen auch umgekehrt gewölbte Kalottenflächen vorgesehen sein können, also zum Beispiel konvexe Kalottenflächen an den Druckstelzen 14, 15 und entsprechend konkave Kalottenflächen an den Stellgliedern 14, 15 und/oder den Lagerkalotten 16, 17. The intermediate members 9, 10 are each executed in the same design and are used to compensate for tilting and offset movements occurring between the actuators 1 1, 12 on the one hand and the roller mill 6 and the roller shaft 1 on the other hand. In the present case, the intermediate members 9, 10 each comprise a compression stilt 14, 15. The compression stilts 14, 15 are each pivotable in several directions. This is achieved by dome-shaped bearings of the pressure stilts 14, 15. In the present case, the pressure stilts are each provided on the actuator side with a concave spherical surface 14a, 15a, wherein a corresponding convex spherical surface is provided on the actuator. On the side of the roller shaft, the pressure stilts are also provided with a concave dome surface 14b, 15b. In this case, a substantially hemispherical bearing dome 16, 17 is inserted into the end of the stapes 14, 15. This is pivotable over the dome-shaped surface 14b, 15b with respect to the pressure wedge and rests against the roller mill 6 with a flat counter surface. In this way, if necessary, a lateral offset of the counter surface relative to the roll mill can be made possible. It is understood that in other embodiments, inversely curved dome surfaces may be provided, so for example, convex Kalottenflächen on the pressure stilts 14, 15 and correspondingly concave Kalottenflächen on the actuators 14, 15 and / or the bearing cups 16, 17th
Die Verstellung des Walzenstuhls um die in der Zeichnungsebene Fig. 1 senkrechte Stellachse S1 erfolgt über nicht dargestellte weitere Stellvorrichtungen die senkrecht zur Zeichnungsrichtung und somit nicht in Richtung der Walzkraft wirken. Insgesamt sind die Druckstelzen 14, 15 ausgehend von einer Neutralposition in jede Raumrichtung um einen Mindestwinkel um einen Drehpunkt verschwenkbar. Der Drehpunkt liegt dabei jeweils im geometrischen Mittelpunkt der stellgliedseitigen Kalottenfläche. The adjustment of the roll mill to the vertical in the plane of the drawing Fig. 1 adjusting axis S1 via not shown further adjusting devices which act perpendicular to the drawing direction and thus not in the direction of the rolling force. Overall, the pressure stilts 14, 15 are pivotable from a neutral position in each spatial direction by a minimum angle about a pivot point. The fulcrum lies in each case in the geometric center of the actuator-side spherical surface.
Dies ist insbesondere in Fig. 3 verdeutlicht, in der eine Druckstelze 14, 15 gezeigt ist, die in vier verschiedenen exemplarischen Raumrichtungen um einen Winkel bis zu einem Anschlag verschwenkt ist. Dabei wird durch die Verschwenkung jeweils ein maximaler seitlicher Versatz d der Gegenflächen der Lagerkalotten 16, 17 ermöglicht. This is illustrated in particular in FIG. 3, in which a compression stilt 14, 15 is shown, which is pivoted in four different exemplary spatial directions at an angle up to a stop. In each case, a maximum lateral offset d of the mating surfaces of the bearing cups 16, 17 is made possible by the pivoting.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
1 Walzenwelle 1 roller shaft
2 Walzenkörper  2 roller bodies
3 Antriebswelle, kardanisches Gelenk 3 drive shaft, gimbal joint
4 erstes Drehlager 4 first pivot bearing
5 zweites Drehlager  5 second pivot bearing
6 Walzenstuhl  6 roller chair
6a Stützbereiche des Walzenstuhls 6a support areas of the roller mill
7 Lagerung des Walzenstuhls7 Storage of the roller mill
8 Rahmen 8 frames
9 erstes Zwischenglied  9 first intermediate link
10 zweites Zwischenglied  10 second intermediate link
1 1 erstes Stellglied  1 1 first actuator
12 zweites Stellglied  12 second actuator
13 Zugglied  13 tension member
14 erste Druckstelze  14 first wagtail
14a konkave Kalottenfläche  14a concave dome surface
14b konkave Kalottenfläche  14b concave dome surface
15 zweite Druckstelze  15 second wagtail
15a konkave Kalottenfläche  15a concave spherical surface
15b konkave Kalottenfläche  15b concave dome surface
16 erste Lagerkalotte  16 first storage dome
17 zweite Lagerkalotte  17 second storage dome
W Walzenachse  W roller axis
S1 erste Stellachse  S1 first adjusting axis
S2 zweite Stellachse  S2 second adjusting axis
d seitlicher Versatz d lateral offset

Claims

Patentansprüche  claims
Schrägwalzwerk, umfassend Cross rolling mill, comprising
eine Mehrzahl von Walzenwellen (1 ), die jeweils eine im Wesentlichen radial gerichtete Walzkraft auf ein Werkstück ausüben,  a plurality of roller shafts (1) each applying a substantially radially directed rolling force to a workpiece,
wobei die Ausrichtung einer Walzenachse (W) zumindest einer der Walzenwellen (1 ) um eine erste Stellachse (S1 ) und um eine zweite Stellachse (S2) einstellbar veränderbar ist,  wherein the alignment of a roll axis (W) of at least one of the roll shafts (1) is adjustably variable about a first adjusting axis (S1) and about a second adjusting axis (S2),
wobei zwischen einem Drehlager (4, 5) der Walzenwelle (1 ) und einem Stellglied (1 1 , 12) ein Zwischenglied (9, 10) angeordnet ist,  wherein between a pivot bearing (4, 5) of the roller shaft (1) and an actuator (1 1, 12) an intermediate member (9, 10) is arranged,
dadurch gekennzeichnet,  characterized,
dass das Zwischenglied (9, 10) eine die Walzkraft übertragende Druckstelze (14, 15) umfasst, die mittels einer kalottenförmigen Lagerfläche (14a, 14b, 15a, 15b) in mehrere Richtungen verschwenkbar ist.  the intermediate member (9, 10) comprises a pressure wedge (14, 15) which transmits the rolling force and which can be pivoted in several directions by means of a dome-shaped bearing surface (14a, 14b, 15a, 15b).
Schrägwalzwerk nach Anspruch 1 , dadurch gekennzeichnet, dass die Walzenwelle (1 ) an zwei gegenüberliegenden Enden jeweils zumindest ein Drehlager (4, 5) und eine verschwenkbare Druckstelze (14, 15) aufweist. Slanting mill according to claim 1, characterized in that the roller shaft (1) at two opposite ends in each case at least one pivot bearing (4, 5) and a pivotable compression stilt (14, 15).
Schrägwalzwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Walzenwelle (1 ) an einem Walzenstuhl (6) aufgenommen ist, wobei der Walzenstuhl (6) um die Stellachsen (S1 , S2) bewegbar gelagert ist und die Druckstelzen (14, 15) gegenüber dem Walzenstuhl (6) abgestützt sind. Slanting mill according to one of the preceding claims, characterized in that the roller shaft (1) is received on a roller mill (6), wherein the roller mill (6) is movably mounted about the adjusting axles (S1, S2) and the pressure stilts (14, 15) are supported against the roller frame (6).
Schrägwalzwerk nach Anspruch 3, dadurch gekennzeichnet, dass der Walzenstuhl (6) mittels eines insbesondere hydraulischen Zugglieds (13) entgegen der Richtung der Walzkraft kraftbeaufschlagt ist. Schrägwalzwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Druckstelze (14, 15) an zumindest einem Ende eine gegenüber der Druckstelze schwenkbare Lagerkalotte (16) aufweist. A cross rolling mill according to claim 3, characterized in that the roller mill (6) is subjected to a force against the direction of the rolling force by means of a hydraulic tension member (13) in particular. Slanting mill according to one of the preceding claims, characterized in that the compression stilt (14, 15) has at least one end a pivotable relative to the stapes bearing dome (16).
Schrägwalzwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Druckstelze (14, 15) ausgehend von einer Neutralposition in jede Raumrichtung um einen Winkel um einen Drehpunkt verschwenkbar ist. Slanting mill according to one of the preceding claims, characterized in that the compression stilt (14, 15) is pivotable starting from a neutral position in each spatial direction by an angle about a pivot point.
Schrägwalzwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zumindest zwei Walzenwellen (1 ), insbesondere zumindest drei Walzenwellen, insbesondere sämtliche der Walzenwellen des Schrägwalzwerks gemäß einem der vorhergehenden Ansprüche verstellbar gelagert sind. Slanting mill according to one of the preceding claims, characterized in that at least two roll shafts (1), in particular at least three roll shafts, in particular all of the roll shafts of the cross rolling mill are adjustably mounted according to one of the preceding claims.
EP17781472.0A 2016-10-11 2017-10-10 Cross-rolling mill Active EP3525945B1 (en)

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DE102016219723.1A DE102016219723A1 (en) 2016-10-11 2016-10-11 Piercing mill
PCT/EP2017/075784 WO2018069303A1 (en) 2016-10-11 2017-10-10 Cross-rolling mill

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DE102019123836A1 (en) * 2019-09-05 2021-03-11 Sms Group Gmbh Cross rolling unit and method for adjusting the rolling pass of a cross rolling unit
CN112986854B (en) * 2021-02-03 2022-10-04 宇能电气有限公司 Portable aviation starting power supply detection equipment
CN113843379B (en) * 2021-10-26 2022-04-22 宁波大学 Three-roller skew rolling device for forming stepped shaft

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US2017374A (en) 1932-09-07 1935-10-15 Nat Tube Co Tube rolling mill
GB1289098A (en) * 1968-10-21 1972-09-13
DE2814493C3 (en) * 1978-03-31 1980-12-18 Mannesmann Ag, 4000 Duesseldorf Cross rolling mill
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DE3406841A1 (en) 1984-02-23 1985-09-12 Mannesmann AG, 4000 Düsseldorf ROLLER ADJUSTMENT FOR A THREE-ROLLER BEVEL BEARING MILL
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EP3525945B1 (en) 2020-02-19
CN109843457B (en) 2020-10-23
PL3525945T3 (en) 2020-07-13
DE102016219723A1 (en) 2018-04-12
CN109843457A (en) 2019-06-04
US20200188973A1 (en) 2020-06-18
ES2784391T3 (en) 2020-09-25
US11400498B2 (en) 2022-08-02
JP6803992B2 (en) 2020-12-23
RU2717425C1 (en) 2020-03-23
WO2018069303A1 (en) 2018-04-19

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