EP2937158A1 - Forming machine, in particular ring milling machine - Google Patents

Forming machine, in particular ring milling machine Download PDF

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Publication number
EP2937158A1
EP2937158A1 EP15162853.4A EP15162853A EP2937158A1 EP 2937158 A1 EP2937158 A1 EP 2937158A1 EP 15162853 A EP15162853 A EP 15162853A EP 2937158 A1 EP2937158 A1 EP 2937158A1
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EP
European Patent Office
Prior art keywords
radial
drives
ring rolling
rolling machine
machine
Prior art date
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Granted
Application number
EP15162853.4A
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German (de)
French (fr)
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EP2937158B1 (en
Inventor
Ralf Bolik
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SMS Group GmbH
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SMS Meer GmbH
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Publication of EP2937158A1 publication Critical patent/EP2937158A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling 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
    • 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
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/10—Drives for forging presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/10—Drives for forging presses
    • B21J9/12—Drives for forging presses operated by hydraulic or liquid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/10—Drives for forging presses
    • B21J9/12—Drives for forging presses operated by hydraulic or liquid pressure
    • B21J9/14—Drives for forging presses operated by hydraulic or liquid pressure in conjunction with electric power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/211—Press driving devices
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning

Definitions

  • the invention relates to a forming machine, in particular a ring rolling machine.
  • the invention relates to a ring rolling machine with at least one hydraulically controlled linear axis.
  • the invention relates to other corresponding forming machines.
  • the invention also relates to a method for controlling a ring rolling machine.
  • Such ring rolling machines and control methods are well-known from the prior art, for example from the DE 25 04 969 A1 , from the DE 38 24 856 A1 , from the EP 2 444 176 B1 or from the DE 39 21 094 A1 , known.
  • the ring rolling machines regularly comprise a radial drive, which is operatively connected to a roller shaft of a radially acting radial roller, and at least one axial drive, which is operatively connected to a roller shaft of an axial roller acting in the axial direction.
  • the axial rollers usually to a workpiece to be rolled axially, ie in a direction parallel to the axis of rotation or symmetry axis of the annular workpiece, while simultaneously or successively thereto via the radial roller of the ring radially to the rotation axis or axis of symmetry of the workpiece or . is transformed to its vertical axis.
  • a rolling mandrel interacts with the radial roller.
  • the rolling rolls with their associated roll shafts are usually set in rotation or driven in rotation via corresponding radial drives or axial drives.
  • such forming machines also include linear axes, which are usually hydraulically, such as in the DE 39 21 094 A1 disclosed, are regulated and serve, for example, the employment of these roles to each other.
  • other modules such as an inlet guide, the rolling mandrel or other, are controlled according to hydraulically controlled by corresponding linear axes.
  • Hydrostatic drives reveals the EP 2 444 176 B1 , which, however, requires very complex supply lines. On the other hand, they reveal DE 39 21 094 A1 and the DE 38 24 856 A1 electromechanical jobs.
  • the invention is based on the basic knowledge that in ring rolling machines a simple mechanical design, which nevertheless works precisely, can be ensured by the fact that the hydraulically controlled linear axes and the drives of the roller shafts for the rolling rolls can be driven or controlled by direct drives. Due to the direct drives, the mechanical engineering structure is simplified in particular to the effect that can be dispensed to hydraulic control lines, in particular, if necessary, at considerable expense on movable assemblies on control oil systems and corresponding servo valves. Likewise, expensive gearboxes fall away. Instead, a direct drive system can be used to drive servo pumps or servomotors. It has been found that the corresponding advantages in terms of hydraulically controlled linear axes are also advantageous in other forming machines.
  • a forming machine comprising at least one hydraulically controlled linear axis can be characterized in that the hydraulically controlled linear axis is driven via an electro-hydrostatic actuator.
  • a forming machine is provided, which has a simple mechanical design and yet works precisely.
  • the electro-hydrostatic actuator also called electro-hydrostatic direct drive
  • electro-hydrostatic direct drive is usually characterized in that within a housing, a conversion of electrical energy via a hydraulic system is carried out in a corresponding mechanical linear movement.
  • appropriate hydraulic lines including any control lines and servo valves can - unlike in the EP 2 444 176 B 1 disclosed-thus directly done an electrical control of the hydraulically controlled linear axis.
  • the forming machine has at least one further hydraulically controlled linear axis, which is driven via an electro-hydrostatic actuator or via a drive other than an electro-hydrostatic actuator.
  • the above-mentioned advantages already arise if only one of the hydraulically controlled linear axes is driven by an electro-hydrostatic actuator, while the other hydraulically controlled linear axes can still be conventionally driven.
  • the hydraulically controlled linear axis driven via the electro-hydrostatic actuator has to be driven at a very remote location or on a moving assembly of the forming machine.
  • the advantages multiply correspondingly when several or all hydraulically controlled linear axes, the drives are arranged on an assembly, in particular a moving assembly, are driven by an electro-hydrostatic actuator. It is understood that, accordingly, all hydraulically controlled linear axes can be driven via an electro-hydrostatic actuator, which maximizes the benefits accordingly.
  • electro-hydrostatic actuator in all forming machines with hydraulically controlled linear axes can be advantageously used accordingly.
  • forging in particular radial forging, traction machines, indenting machines, rolling machines, extrusion presses, folding machines, thermoforming machines, beading machines, flanging machines, straightening machines, bending machines, stretching machines and upsetting machines can be correspondingly advantageously provided with electro-hydrostatic actuators for hydraulically controlled linear axes.
  • rolling machines or presses can be aligned accordingly. In particular, this applies correspondingly advantageous for ring rolling machines.
  • a ring rolling machine comprising at least one radial drive, which is operatively connected to a roller shaft of a radially acting radial roller, and at least one axial drive, which is operatively connected to a roller shaft of an axially acting axial roller, characterized in that the radial drive and / or the axial drive comprise a high-torque motor, which is operatively connected without gear to the associated roller shaft, to simple engineering structure yet to work precisely.
  • a high-torque engine is an engine capable of replacing the conventional engine-gearbox combinations so that the use of a transmission is unnecessary.
  • a high torque motor may be a low torque, high torque motor with the aim of sacrificing transmission.
  • the respective radial and / or axial drives can also be referred to as direct drives.
  • the corresponding high torque motor may be, in particular, a hollow shaft servomotor and / or a brushless DC motor.
  • the corresponding high-torque motor is a switched reluctance motor or a torque motor.
  • the high-torque motor can be designed both as an external rotor and as an internal rotor, ie as a motor with a conventional drive shaft.
  • a torque motor which can be designed in particular as a high-pole direct drives from the group of low-speed and can deliver a very high torque at relatively low speeds can still be applied with a simple mechanical engineering effort, especially waiving a gear, a sufficiently high torque to ensure precise work in the rolls driven by the torque motor.
  • an electromechanical motor which are also counted reluctance motors or torque motors or brushless DC motors are advantageous to apply, as well as a precise work Tider, simple mechanical design in particular waiving hydraulic control lines and the like. can be guaranteed.
  • electro-hydrostatic actuators at this point, if sufficient torque is available.
  • all driven radial rollers and axial rollers can be driven via the corresponding motor with high torque.
  • the radial roller may comprise two coaxially arranged and possibly also integrally formed whale rollers, of which a first of the two roller shafts up and a second of the two roller shafts down points and on each of which a radial drive is provided.
  • This makes it possible in particular to apply a correspondingly higher torque. Cumulatively or alternatively, this also ensures a lower moment load of the roller shafts both in the radial direction and in the circumferential direction of the roller shafts.
  • correspondingly coaxially arranged roll shafts serving a radial rolling roll in a ring rolling machine comprise at least one radial drive operatively connected to a roll shaft of a radially acting radial rolling roll and at least one axial drive connected to a roll shaft of an axial rolling roll acting in the axial direction is operatively connected, accordingly advantageous.
  • the ring rolling machine comprises a plurality of radial drives and / or a plurality of axial drives, and at least one of the radial and axial drives comprises a different drive than a high torque motor operatively connected to the associated roller shaft without a gear.
  • a balance can be made readily and to implement the above advantages of at least one of the radial or axial drives include a high torque motor, which is operatively connected without gear with the associated roller shaft.
  • the ring rolling machine may include a motor with high torque, which is operatively connected without gear with the associated roller shaft, so as to a maximum of the above to realize the advantages explained.
  • ring rolling machine 4 comprises a plurality of hydraulically controlled linear axes 2, which are each controlled by electro-hydrostatic actuators 3, and radial drives 5, 6 and axial drives 7, 8, respectively via roller shafts 9 corresponding radial rolling 10 and Drive axial rollers 11, 12.
  • the ring rolling machine 4 comprises a radial rolling mill 15, on which a mandrel lifting device 16 is radially displaceable over an upper draw frame 17, wherein the mandrel lifting device 16 in turn can axially displace the mandrel, not shown for reasons of clarity.
  • a lower pull frame 18 is provided for further modules.
  • the ring rolling machine 4 shown in the figure also has an inlet-side centering 19 and a radially displaceable Axialwalzgerüst 14, which carries the two Axialwalzrollen 11 and 12 and carries an axially displaceable slide 20, by means of which the upper Axialwalzrolle 11 of the two Axialwalzrollen 11, 12th can be made axially. All these movement possibilities are controlled in this embodiment via hydraulically controlled linear axes 2 by means of electro-hydrostatic actuators 3.
  • the radial drives 5, 6 and axial drives 7, 8 are each configured as torque motors and operatively connected without gear with the associated roller shafts 9.
  • the upper and lower roller shafts 9 of the radial drives 5, 6, which are each connected to the radial roller 10, integrally formed in this embodiment, and in an alternative embodiment, but also coaxially arranged coaxially with each other and each directly or indirectly with the radial roller 10th can be connected.
  • the forming machine 1 is based on direct drives and thereby ensures a machine-structurally simple structure, without the precision suffers.
  • complex hydraulic systems which also have to be transferred to moving assemblies and thus require a large amount of cable, can be dispensed with.
  • These oil tanks 22 are preferably arranged on stationary assemblies with respect to the electro-hydrostatic actuators 3, to which they each deliver the oil, so that here on movable hydraulic lines can be waived.
  • the oil tanks 22 are integrated into the electro-hydrostatic actuators 3. It is understood that such an arrangement of the oil tanks 22 with respect to the electro-hydrostatic Actuators 3 stationary assemblies or the integration of oil tanks 22 in electro-hydrostatic actuators 3 or their housing is also independent of the other features of the present invention in a forming machine 1 with hydraulically controlled linear axes 2 advantageous, even if not necessarily electro-hydrostatic actuators 3 but others Hydraulic fluid using actuators are used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Rolling Contact Bearings (AREA)
  • Forging (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

Eine Umformmaschine, insbesondere eine Ringwalzmaschine, welche eine hydraulisch geregelte Linearachse umfasst, die über einen elektro-hydrostatischen Aktuator angetrieben ist, kann bei einem einfachen maschinenbaulichen Aufbau präzise arbeiten. Die Erfindung betrifft weiterhin eine Ringwalzmaschine mit einem Direktantrieb.A forming machine, in particular a ring rolling machine, which comprises a hydraulically controlled linear axis, which is driven by an electro-hydrostatic actuator, can work precisely with a simple machine construction. The invention further relates to a ring rolling machine with a direct drive.

Description

Die Erfindung betrifft eine Umformmaschine, insbesondere eine Ringwalzmaschine.The invention relates to a forming machine, in particular a ring rolling machine.

Insbesondere betrifft die Erfindung eine Ringwalzmaschine mit wenigstens einer hydraulisch geregelten Linearachse. Ebenso betrifft die Erfindung andere dementsprechende Umformmaschinen. Darüber hinaus betrifft die Erfindung auch ein Verfahren zur Steuerung einer Ringwalzmaschine. Derartige Ringwalzmaschinen und Steuerverfahren sind hinlänglich aus dem Stand der Technik, beispielsweise aus der DE 25 04 969 A1 , aus der DE 38 24 856 A1 , aus der EP 2 444 176 B1 oder aus der DE 39 21 094 A1 , bekannt. Hierbei umfassen die Ringwalzmaschinen regelmäßig einen Radialantrieb, der mit einer Walzenwelle einer in radialer Richtung wirkenden Radialwalzrolle wirkverbunden ist, und zumindest einen Axialantrieb, der mit einer Walzenwelle einer in Axialrichtung wirkenden Axialwalzrolle wirkverbunden ist. Hierbei dienen, wie beispielsweise in der DE 25 04 969 A1 , der DE 38 24 856 A1 , der EP 2 444 176 B1 oder auch in der DE 39 21 094 A1 dargestellt, die Axialrollen in der Regel dazu, ein zu walzendes Werkstück axial, also in einer Richtung parallel zur Rotationsachse bzw. Symmetrieachse des ringförmigen Werkstückes, umzuformen, während gleichzeitig oder hintereinander hierzu über die Radialwalzrolle der Ring radial zur Rotationsachse bzw. Symmetrieachse des Werkstücks bzw. zu dessen Hochachse umgeformt wird. Häufig wirkt mit der Radialwalzrolle noch ein Walzdorn zusammen.In particular, the invention relates to a ring rolling machine with at least one hydraulically controlled linear axis. Likewise, the invention relates to other corresponding forming machines. Moreover, the invention also relates to a method for controlling a ring rolling machine. Such ring rolling machines and control methods are well-known from the prior art, for example from the DE 25 04 969 A1 , from the DE 38 24 856 A1 , from the EP 2 444 176 B1 or from the DE 39 21 094 A1 , known. Here, the ring rolling machines regularly comprise a radial drive, which is operatively connected to a roller shaft of a radially acting radial roller, and at least one axial drive, which is operatively connected to a roller shaft of an axial roller acting in the axial direction. Serve here, such as in the DE 25 04 969 A1 , of the DE 38 24 856 A1 , of the EP 2 444 176 B1 or in the DE 39 21 094 A1 illustrated, the axial rollers usually to a workpiece to be rolled axially, ie in a direction parallel to the axis of rotation or symmetry axis of the annular workpiece, while simultaneously or successively thereto via the radial roller of the ring radially to the rotation axis or axis of symmetry of the workpiece or . is transformed to its vertical axis. Often, a rolling mandrel interacts with the radial roller.

Hierbei versteht es sich, dass die Walzrollen mit Ihren zugehörigen Walzenwellen in der Regel rotatorisch über entsprechende Radialantriebe bzw. Axialantriebe in Bewegung oder angesteuert gesetzt werden. Darüber hinaus umfassen derartige Umformmaschinen auch Linearachsen, die in der Regel hydraulisch, wie beispielsweise in der DE 39 21 094 A1 offenbart, geregelt sind und die beispielsweise dem Anstellen dieser Rollen zueinander dienen. Ebenso können über entsprechende Linearachsen auch andere Baugruppen, wie beispielsweise eine Einlaufführung, der Walzdorn oder sonstiges, entsprechend hydraulisch geregelt angesteuert werden. Hydrostatische Antriebe offenbart die EP 2 444 176 B1 , die jedoch sehr komplexe Zuleitungen benötigt. Andererseits offenbaren die DE 39 21 094 A1 und die DE 38 24 856 A1 elektromechanische Anstellungen.In this case, it is understood that the rolling rolls with their associated roll shafts are usually set in rotation or driven in rotation via corresponding radial drives or axial drives. In addition, such forming machines also include linear axes, which are usually hydraulically, such as in the DE 39 21 094 A1 disclosed, are regulated and serve, for example, the employment of these roles to each other. Likewise, other modules, such as an inlet guide, the rolling mandrel or other, are controlled according to hydraulically controlled by corresponding linear axes. Hydrostatic drives reveals the EP 2 444 176 B1 , which, however, requires very complex supply lines. On the other hand, they reveal DE 39 21 094 A1 and the DE 38 24 856 A1 electromechanical jobs.

Es ist Aufgabe vorliegender Erfindung, eine Umformmaschine, insbesondere eine Ringwalzmaschine, bereitzustellen, die bei einfachem maschinebaulichem Aufbau dennoch präzise arbeiten.It is an object of the present invention to provide a forming machine, in particular a ring rolling machine, which still work precisely with a simple machine construction.

Die Aufgabe der Erfindung wird durch eine Umformmaschine, insbesondere eine Ringwalzmaschine, mit den Merkmalen der unabhängigen Ansprüche gelöst. Weitere ggf. auch unabhängig hiervon vorteilhafte Ausgestaltungen finden sich in den Unteransprüchen sowie der nachfolgenden Beschreibung.The object of the invention is achieved by a forming machine, in particular a ring rolling machine, with the features of the independent claims. Other, if appropriate, also advantageous advantageous embodiments can be found in the dependent claims and the following description.

Hierbei geht die Erfindung von der Grunderkenntnis aus, dass bei Ringwalzmaschinen ein einfacher maschinenbaulicher Aufbau, der dennoch präzise arbeitet, dadurch gewährleistet werden kann, dass die hydraulisch geregelten Linearachsen bzw. die Antriebe der Walzenwellen für die Walzrollen durch Direktantriebe angetrieben bzw. angesteuert werden können. Durch die Direktantriebe vereinfacht sich der maschinenbauliche Aufbau insbesondere dahingehend, dass auf hydraulische Steuerleitungen, die insbesondere gegebenenfalls unter erheblichen Aufwand auf bewegliche Baugruppen geführt werden müssen, auf Steuerölsysteme und auf entsprechende Servoventile verzichtet werden kann. Ebenso fallen aufwendige Getriebe weg. Stattdessen kann durch die Direktantriebe ein System aus Servopumpen bzw. Servomotoren als Antrieb genutzt werden. Hierbei hat sich herausgestellt, dass die entsprechenden Vorteile hinsichtlich der hydraulisch geregelten Linearachsen auch bei anderen Umformmaschinen entsprechend von Vorteil sind. Es versteht sich, dass diese Grunderkenntnis bereits schon beim Einsatz in Bezug auf lediglich einen Antrieb entsprechende Vorteile zeigt, insbesondere wenn der entsprechende Antrieb an einer beweglichen Baugruppe oder verhältnismäßig alleinstehend an der Umformmaschine angeordnet ist, was ansonsten dementsprechend lange und störungsanfällige bzw. komplexe Leitungswege bedingt. Die vorstehend dargelegten Vorteile kumulieren nicht nur sondern multiplizieren sich, wenn beispielsweise sämtliche Antriebe auf einer Seite oder an einer Baugruppe der Ringwalzmaschine entsprechend ausgestaltet sind; dieses gilt insbesondere dann wenn sämtliche Antriebe für die hydraulisch geregelten Linearachsen und Walzenwellen der Ringwalzmaschine durch Direktantriebe angetrieben bzw. angesteuert werden.The invention is based on the basic knowledge that in ring rolling machines a simple mechanical design, which nevertheless works precisely, can be ensured by the fact that the hydraulically controlled linear axes and the drives of the roller shafts for the rolling rolls can be driven or controlled by direct drives. Due to the direct drives, the mechanical engineering structure is simplified in particular to the effect that can be dispensed to hydraulic control lines, in particular, if necessary, at considerable expense on movable assemblies on control oil systems and corresponding servo valves. Likewise, expensive gearboxes fall away. Instead, a direct drive system can be used to drive servo pumps or servomotors. It has been found that the corresponding advantages in terms of hydraulically controlled linear axes are also advantageous in other forming machines. It is understood that this basic knowledge already has corresponding advantages when used in relation to only one drive, in particular if the corresponding drive is arranged on a movable module or relatively single on the forming machine, which otherwise requires correspondingly long and fault-prone or complex cable paths , The advantages set out above not only cumulate but multiply if, for example, all the drives on one side or on an assembly of the ring rolling machine are designed accordingly; This is especially true when all drives for the hydraulically controlled linear axes and roll shafts of the ring rolling machine are driven or controlled by direct drives.

In konkreter Umsetzung kann sich eine Umformmaschine, umfassen wenigstens eine hydraulisch geregelte Linearachse, dadurch auszeichnen, dass die hydraulisch geregelte Linearachse über einen elektro-hydrostatischen Aktuator angetrieben ist. Hierdurch wird eine Umformmaschine bereitgestellt, die einen einfachen maschinenbaulichen Aufbau aufweist und dennoch präzise arbeitet.In concrete implementation, a forming machine comprising at least one hydraulically controlled linear axis can be characterized in that the hydraulically controlled linear axis is driven via an electro-hydrostatic actuator. As a result, a forming machine is provided, which has a simple mechanical design and yet works precisely.

Der elektro-hydrostatische Aktuator, auch elektro-hydrostatischer Direktantrieb genannt, zeichnet sich in der Regel dadurch aus, dass innerhalb eines Gehäuses eine Wandlung elektrischer Energie über eine Hydraulik in eine entsprechende mechanische Linearbewegung durchgeführt wird. Statt der Nutzung entsprechender hydraulischer Leitungen einschließlich etwaiger Steuerleitungen und Servoventile kann - anders als in der EP 2 444 176 B 1 offenbart-somit unmittelbar eine elektrische Ansteuerung der hydraulisch geregelten Linearachse erfolgen.The electro-hydrostatic actuator, also called electro-hydrostatic direct drive, is usually characterized in that within a housing, a conversion of electrical energy via a hydraulic system is carried out in a corresponding mechanical linear movement. Instead of using appropriate hydraulic lines including any control lines and servo valves can - unlike in the EP 2 444 176 B 1 disclosed-thus directly done an electrical control of the hydraulically controlled linear axis.

Vorzugsweise weist die Umformmaschine wenigstens eine weitere hydraulisch geregelte Linearachse auf, die über einen elektro-hydrostatischen Aktuator oder über einen anderen Antrieb als einen elektro-hydrostatischen Aktuator angetrieben ist. Hierbei ergeben sich die vorstehend genannten Vorteile bereits, wenn lediglich eine der hydraulisch geregelten Linearachsen über einen elektro-hydrostatischen Aktuator angetrieben ist, während die übrigen hydraulisch geregelten Linearachsen noch herkömmlich angetrieben sein können. Dieses gilt insbesondere dann, wenn die über den elektro-hydrostatischen Aktuator angetriebene, hydraulisch geregelte Linearachse an einer sehr entfernten Stelle oder an einer bewegten Baugruppe der Umformmaschine angetrieben werden muss. Die Vorteile multiplizieren sich entsprechend, wenn mehrere bzw. alle hydraulisch geregelten Linearachsen, der Antriebe an einer Baugruppe, insbesondere einer bewegten Baugruppe, angeordnet sind über einen elektro-hydrostatischen Aktuator angetrieben sind. Es versteht sich, dass dementsprechend auch alle hydraulisch geregelten Linearachsen über jeweils einen elektro-hydrostatischen Aktuator angetrieben können, was die Vorteile entsprechend maximiert.Preferably, the forming machine has at least one further hydraulically controlled linear axis, which is driven via an electro-hydrostatic actuator or via a drive other than an electro-hydrostatic actuator. In this case, the above-mentioned advantages already arise if only one of the hydraulically controlled linear axes is driven by an electro-hydrostatic actuator, while the other hydraulically controlled linear axes can still be conventionally driven. This applies in particular when the hydraulically controlled linear axis driven via the electro-hydrostatic actuator has to be driven at a very remote location or on a moving assembly of the forming machine. The advantages multiply correspondingly when several or all hydraulically controlled linear axes, the drives are arranged on an assembly, in particular a moving assembly, are driven by an electro-hydrostatic actuator. It is understood that, accordingly, all hydraulically controlled linear axes can be driven via an electro-hydrostatic actuator, which maximizes the benefits accordingly.

Hierbei versteht es sich, dass die entsprechenden Vorteile eines elektro-hydrostatischen Aktuators bei allen Umformmaschinen mit hydraulisch geregelten Linearachsen entsprechend Vorteilhaft zur Anwendung kommen können. Insbesondere können dementsprechend Schmieden, insbesondere Radialschmieden, Treibmaschinen, Eindrückmaschinen, Walzmaschinen, Strangpressen, Faltmaschinen, Tiefziehmaschinen, Sickmaschinen, Bördelmaschinen, Richtmaschinen, Biegemaschinen, Reckmaschinen und Stauchmaschinen entsprechend vorteilhaft mit elektro-hydrostatischen Aktuatoren für hydraulisch geregelte Linearachsen versehen werden. Besonders vorteilhaft können Walzmaschinen oder Pressen dementsprechend ausgerichtet werden. Insbesondere gilt dieses entsprechend vorteilhaft für Ringwalzmaschinen.It is understood that the corresponding advantages of an electro-hydrostatic actuator in all forming machines with hydraulically controlled linear axes can be advantageously used accordingly. In particular, accordingly forging, in particular radial forging, traction machines, indenting machines, rolling machines, extrusion presses, folding machines, thermoforming machines, beading machines, flanging machines, straightening machines, bending machines, stretching machines and upsetting machines can be correspondingly advantageously provided with electro-hydrostatic actuators for hydraulically controlled linear axes. Particularly advantageously, rolling machines or presses can be aligned accordingly. In particular, this applies correspondingly advantageous for ring rolling machines.

Ebenso kann eine Ringwalzmaschine, umfassend zumindest einen Radialantrieb, der mit einer Walzenwelle einer in radialer Richtung wirkenden Radialwalzrolle wirkverbunden ist, und zumindest einen Axialantrieb, der mit einer Walzenwelle einer in axialer Richtung wirkenden Axialwalzrolle wirkverbunden ist, sich dadurch auszeichnen, dass der Radialantrieb und/oder der Axialantrieb einen Motor mit hohem Drehmoment umfassen, der ohne Getriebe mit der zugehörigen Walzenwelle wirkverbunden ist, um bei einfachen maschinenbaulichen Aufbau dennoch präzise zu arbeiten. Bei einem Motor mit hohem Drehmoment handelt es sich insbesondere um einen Motor, der in der Lage ist, die üblichen Motor-Getriebe-Kombinationen zu ersetzen, so dass der Einsatz eines Getriebes überflüssig ist. Insbesondere kann ein Motor mit hohem Drehmoment ein langsam laufender Motor mit hohem Drehmoment sein, mit dem Ziel auf Getriebe zu verzichten. Durch den Verzicht auf Getriebe können die jeweiligen Radial-und/oder Axialantriebe auch als Direktantriebe bezeichnet werden.Likewise, a ring rolling machine, comprising at least one radial drive, which is operatively connected to a roller shaft of a radially acting radial roller, and at least one axial drive, which is operatively connected to a roller shaft of an axially acting axial roller, characterized in that the radial drive and / or the axial drive comprise a high-torque motor, which is operatively connected without gear to the associated roller shaft, to simple engineering structure yet to work precisely. In particular, a high-torque engine is an engine capable of replacing the conventional engine-gearbox combinations so that the use of a transmission is unnecessary. In particular, a high torque motor may be a low torque, high torque motor with the aim of sacrificing transmission. By dispensing with gearbox, the respective radial and / or axial drives can also be referred to as direct drives.

Der entsprechende Motor mit hohem Drehmoment kann insbesondere einen Servomotor mit Hohlwelle und/oder ein bürstenloser Gleichstrommotor sein. Insbesondere ist es denkbar, dass der entsprechende Motor mit hohem Drehmoment ein geschalteter Reluktanzmotor beziehungsweise ein Torque-Motor ist. Der Motor mit hohem Drehmoment kann sowohl als Außenläufer als auch als Innenläufer, also als Motor mit einer herkömmlichen Antriebswelle, ausgebildet sein. Insbesondere durch einen Torque-Motor, die insbesondere als hochpolige Direktantriebe aus der Gruppe der Langsamläufer ausgestaltet sein und ein sehr hohes Drehmoment bei relativ kleinen Drehzahlen liefern können, kann bei einfachem maschinenbaulichen Aufwand, insbesondere unter Verzicht von einem Getriebe, dennoch ein ausreichend hohes Drehmoment aufgebracht werden, um eine präzises Arbeiten in der über den Torque-Motor angetriebenen Walzen zu gewährleisten. Je nach konkreter Umsetzung ist als Motor mit hohem Drehmoment insbesondere ein elektromechanischer Motor, zu welchem dementsprechend auch geschaltete Reluktanzmotoren bzw. Torque-Motoren bzw. bürstenlose Gleichstrommotoren zu zählen sind, vorteilhaft zur Anwendung kommen, da auch hier ein präzises Arbeiten ermöglichender, einfacher maschinenbaulicher Aufbau insbesondere unter Verzicht auf hydraulische Steuerleitungen u.ä. gewährleistet werden kann. Entsprechende Vorteile ergeben sich auch bei der Verwendung elektro-hydrostatischer Aktuatoren an dieser Stelle, wenn ausreichend Drehmoment zur Verfügung steht.The corresponding high torque motor may be, in particular, a hollow shaft servomotor and / or a brushless DC motor. In particular, it is conceivable that the corresponding high-torque motor is a switched reluctance motor or a torque motor. The high-torque motor can be designed both as an external rotor and as an internal rotor, ie as a motor with a conventional drive shaft. In particular, by a torque motor, which can be designed in particular as a high-pole direct drives from the group of low-speed and can deliver a very high torque at relatively low speeds can still be applied with a simple mechanical engineering effort, especially waiving a gear, a sufficiently high torque to ensure precise work in the rolls driven by the torque motor. Depending on the specific implementation is as an engine with high torque in particular an electromechanical motor, which are also counted reluctance motors or torque motors or brushless DC motors are advantageous to apply, as well as a precise work ermöglichender, simple mechanical design in particular waiving hydraulic control lines and the like. can be guaranteed. Corresponding advantages also arise when using electro-hydrostatic actuators at this point, if sufficient torque is available.

Über den entsprechenden Motor mit hohem Drehmoment können insbesondere sämtliche angetriebenen Radialwalzen und Axialwalzen angetrieben werden.In particular, all driven radial rollers and axial rollers can be driven via the corresponding motor with high torque.

In einer bevorzugten Ausführungsform kann die Radialwalzrolle zwei koaxial angeordnete und gegebenenfalls auch einstückig ausgebildete Walzwellen umfassen, von denen eine erste der beiden Walzenwellen nach oben und eine zweite der beiden Walzenwellen nach unten weist und an denen jeweils ein Radialantrieb vorgesehen ist. Dieses ermöglicht es insbesondere, ein entsprechend höheres Drehmoment aufzubringen. Kumulativ beziehungsweise alternativ wird hierdurch auch eine geringere Momentenbelastung der Walzenwellen sowohl in radialer Hinsicht als auch in Umfangsrichtung der Walzenwellen gewährleistet. Insoweit sind entsprechend koaxial angeordnete Walzenwellen, die dazu dienen, eine Radialwalzrolle bei einer Ringwalzmaschine, umfassen zumindest einen Radialantrieb, der mit einer Walzenwelle einer in radialer Richtung wirkenden Radialwalzrolle wirkverbunden ist, und zumindest einen Axialantrieb, der mit einer Walzenwelle einer in axialer Richtung wirkenden Axialwalzrolle wirkverbunden ist, dementsprechend vorteilhaft.In a preferred embodiment, the radial roller may comprise two coaxially arranged and possibly also integrally formed whale rollers, of which a first of the two roller shafts up and a second of the two roller shafts down points and on each of which a radial drive is provided. This makes it possible in particular to apply a correspondingly higher torque. Cumulatively or alternatively, this also ensures a lower moment load of the roller shafts both in the radial direction and in the circumferential direction of the roller shafts. In that regard, correspondingly coaxially arranged roll shafts serving a radial rolling roll in a ring rolling machine comprise at least one radial drive operatively connected to a roll shaft of a radially acting radial rolling roll and at least one axial drive connected to a roll shaft of an axial rolling roll acting in the axial direction is operatively connected, accordingly advantageous.

In einer Ausführungsform weist die Ringwalzmaschine mehrere Radialantriebe und/oder mehrere Axialantriebe auf, und es umfasst wenigstens einer der Radial- und Axialantriebe einen anderen Antrieb als einen Motor mit hohem Drehmoment, der ohne Getriebe mit der zugehörigen Walzenwelle wirkverbunden ist. Dieses bedingt zwar einen erhöhten Aufwand, kann jedoch unter bestimmten Gegebenheiten, beispielsweise wenn der entsprechende Antrieb besonders hohe Drehmomente aufbringen muss oder wenn sonstige Randbedingungen, wie beispielsweise ein notwendiger Überlastschutz, vorteilhafter mit einem Getriebe umzusetzen sind, vorteilhaft sein. Es versteht sich, dass diesbezüglich ohne weiteres eine Abwägung erfolgen kann und zur Umsetzung der vorstehend genannten Vorteile wenigstens einer der Radial- bzw. Axialantriebe einen Motor mit hohem Drehmoment umfassen, der ohne Getriebe mit der zugehörigen Walzenwelle wirkverbunden ist. Andererseits versteht es sich, dass ggf. auch sämtliche Radialantriebe und/oder sämtliche Axialantriebe, insbesondere sämtliche Radial- und Axialantriebe, der Ringwalzmaschine einen Motor mit hohem Drehmoment umfassen können, der ohne Getriebe mit der zugehörigen Walzenwelle wirkverbunden ist, um so ein Maximum der vorstehend erläuterten Vorteile umsetzen zu können.In one embodiment, the ring rolling machine comprises a plurality of radial drives and / or a plurality of axial drives, and at least one of the radial and axial drives comprises a different drive than a high torque motor operatively connected to the associated roller shaft without a gear. Although this requires an increased effort, but under certain circumstances, for example, if the corresponding drive must apply particularly high torques or if other boundary conditions, such as a necessary overload protection, are more advantageous to implement with a transmission, be advantageous. It is understood that in this regard, a balance can be made readily and to implement the above advantages of at least one of the radial or axial drives include a high torque motor, which is operatively connected without gear with the associated roller shaft. On the other hand, it goes without saying that possibly all radial drives and / or all axial drives, in particular all radial and axial drives, the ring rolling machine may include a motor with high torque, which is operatively connected without gear with the associated roller shaft, so as to a maximum of the above to realize the advantages explained.

Es versteht sich, dass die Merkmale der vorstehend bzw. in den Ansprüchen beschriebenen Lösungen gegebenenfalls auch kombiniert werden können, um die Vorteile entsprechend kumuliert umsetzen zu können.It is understood that the features of the solutions described above or in the claims can optionally also be combined in order to implement the advantages in a cumulative manner.

Weitere Vorteile, Ziele und Eigenschaften vorliegender Erfindung werden anhand nachfolgender Beschreibung eines Ausführungsbeispiels erläutert, das insbesondere auch in anliegender Zeichnung dargestellt ist. In der Zeichnung zeigt die einzige Figur eine schematische Seitenansicht einer Ringwalzmaschine.Further advantages, objects and characteristics of the present invention will be explained with reference to the following description of an exemplary embodiment, which is also illustrated in particular in the appended drawing. In the drawing, the single figure shows a schematic side view of a ring rolling machine.

Die in der Figur dargestellte, als Umformmaschine 1 ausgestaltete Ringwalzmaschine 4 umfasst mehrere hydraulisch geregelte Linearachsen 2, die jeweils über elektro-hydrostatische Aktuatoren 3 angesteuert sind, sowie Radialantriebe 5, 6 und Axialantriebe 7, 8, die jeweils über Walzenwellen 9 entsprechender Radialwalzrollen 10 und Axialwalzrollen 11, 12 antreiben.The illustrated in the figure, designed as a forming machine 1 ring rolling machine 4 comprises a plurality of hydraulically controlled linear axes 2, which are each controlled by electro-hydrostatic actuators 3, and radial drives 5, 6 and axial drives 7, 8, respectively via roller shafts 9 corresponding radial rolling 10 and Drive axial rollers 11, 12.

In an sich bekannter Weise umfasst die Ringwalzmaschine 4 ein Radialwalzgerüst 15, an dem eine Dornhebevorrichtung 16 über einen oberen Zugrahmen 17 radial verlagerbar ist, wobei die Dornhebevorrichtung 16 ihrerseits den aus Gründen der Übersichtlichkeit nicht dargestellten Dorn axial verlagern kann. Ebenso ist ein unterer Zugrahmen 18 für weitere Baugruppen vorgesehen. Beispielsweise weist die in der Figur dargestellte Ringwalzmaschine 4 auch eine einlaufseitige Zentrierung 19 sowie ein radial verlagerbares Axialwalzgerüst 14 auf, welches die beiden Axialwalzrollen 11 und 12 trägt und einen axial verlagerbaren Schieber 20 trägt, mittels dessen die obere Axialwalzrolle 11 der beiden Axialwalzrollen 11, 12 axial angestellt werden kann. All diese Bewegungsmöglichkeiten sind bei diesem Ausführungsbeispiel über hydraulisch geregelte Linearachsen 2 mittels elektro-hydrostatischer Aktuatoren 3 angesteuert.In known manner, the ring rolling machine 4 comprises a radial rolling mill 15, on which a mandrel lifting device 16 is radially displaceable over an upper draw frame 17, wherein the mandrel lifting device 16 in turn can axially displace the mandrel, not shown for reasons of clarity. Likewise, a lower pull frame 18 is provided for further modules. For example, the ring rolling machine 4 shown in the figure also has an inlet-side centering 19 and a radially displaceable Axialwalzgerüst 14, which carries the two Axialwalzrollen 11 and 12 and carries an axially displaceable slide 20, by means of which the upper Axialwalzrolle 11 of the two Axialwalzrollen 11, 12th can be made axially. All these movement possibilities are controlled in this embodiment via hydraulically controlled linear axes 2 by means of electro-hydrostatic actuators 3.

Die Radialantriebe 5, 6 und Axialantriebe 7, 8 sind jeweils als Torque-Motoren ausgestaltet und ohne Getriebe mit den zugehörigen Walzenwellen 9 wirkverbunden. Hierbei sind die oberen und unteren Walzenwellen 9 der Radialantriebe 5, 6, die jeweils mit der Radialwalzrolle 10 verbundenden sind, bei diesem Ausführungsbeispiel einstückig ausgebildet, wobei sie in einer alternativen Ausführungsform auch mehrstückig aber koaxial angeordnet untereinander und jeweils direkt oder indirekt mit der Radialwalzrolle 10 verbunden sein können.The radial drives 5, 6 and axial drives 7, 8 are each configured as torque motors and operatively connected without gear with the associated roller shafts 9. Here, the upper and lower roller shafts 9 of the radial drives 5, 6, which are each connected to the radial roller 10, integrally formed in this embodiment, and in an alternative embodiment, but also coaxially arranged coaxially with each other and each directly or indirectly with the radial roller 10th can be connected.

Mithin setzt die Umformmaschine 1 auf Direktantriebe und gewährleistet hierdurch eine maschinenbaulich einfachen Aufbau, ohne dass hierunter die Präzision leidet. Insbesondere kann auch auf komplexe hydraulische Systeme, die auch auf bewegte Baugruppen überführt werden müssen und mithin einen großen Leitungsaufwand bedingen, verzichtet werden.Consequently, the forming machine 1 is based on direct drives and thereby ensures a machine-structurally simple structure, without the precision suffers. In particular, complex hydraulic systems, which also have to be transferred to moving assemblies and thus require a large amount of cable, can be dispensed with.

Lediglich exemplarisch beziffert sind hydraulische Öltanks 22 zu den zugehörigen elektro-hydrostatischen Aktuatoren 3. Diese Öltanks 22 sind vorzugsweise an ortsfesten Baugruppen bezüglich der elektro-hydrostatischen Aktuatoren 3, zu denen sie jeweils das Öl liefern, angeordnet, so dass auch hier auf bewegliche hydraulische Leitungen verzichtet werden kann. Vorzugsweise sind die Öltanks 22 in die elektro-hydrostatischen Aktuatoren 3 integriert. Es versteht sich, dass eine derartige Anordnung der Öltanks 22 an bezüglich der elektro-hydrostatischen Aktuatoren 3 ortsfesten Baugruppen beziehungsweise die Integration der Öltanks 22 in elektro-hydrostatischen Aktuatoren 3 oder deren Gehäuse auch unabhängig von den übrigen Merkmalen vorliegender Erfindung bei einer Umformmaschine 1 mit hydraulisch geregelten Linearachsen 2 vorteilhaft ist, auch wenn nicht unbedingt elektro-hydrostatische Aktuatoren 3 sondern andere hydraulische Flüssigkeit verwendender Aktuatoren zur Anwendung kommen.Only exemplified are hydraulic oil tanks 22 to the associated electro-hydrostatic actuators 3. These oil tanks 22 are preferably arranged on stationary assemblies with respect to the electro-hydrostatic actuators 3, to which they each deliver the oil, so that here on movable hydraulic lines can be waived. Preferably, the oil tanks 22 are integrated into the electro-hydrostatic actuators 3. It is understood that such an arrangement of the oil tanks 22 with respect to the electro-hydrostatic Actuators 3 stationary assemblies or the integration of oil tanks 22 in electro-hydrostatic actuators 3 or their housing is also independent of the other features of the present invention in a forming machine 1 with hydraulically controlled linear axes 2 advantageous, even if not necessarily electro-hydrostatic actuators 3 but others Hydraulic fluid using actuators are used.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11 Umformmaschineforming machine 1111 obere Axialwalzrolleupper axial roller 22 Linearachselinear axis 1212 untere Axialwalzrollelower axial roller 33 elektro-hydrostatischer Aktuatorelectro-hydrostatic actuator 1414 AxialwalzgerüstAxialwalzgerüst 44 RingwalzmaschineRing rolling machine 1515 RadialwalzgerüstRadial rolling mill 55 Radialantriebradial drive 1616 DornhebevorrichtungDorn lifting device 66 Radialantriebradial drive 1717 oberer Zugrahmenupper draw frame 77 Axialantriebaxial drive 1818 unterer Zugrahmenlower draw frame 88th Axialantriebaxial drive 1919 einlaufseitige Zentrierunginlet-side centering 99 Walzenwelleroller shaft 2020 Schieberpusher 1010 RadialwalzrolleRadial roller 2222 Öltankoil tank

Claims (16)

Umformmaschine (1), umfassend wenigstens eine hydraulisch geregelte Linearachse (2), dadurch gekennzeichnet, dass die hydraulisch geregelte Linearachse (2) über einen elektro-hydrostatischen Aktuator (3) angetrieben ist.Forming machine (1), comprising at least one hydraulically controlled linear axis (2), characterized in that the hydraulically controlled linear axis (2) via an electro-hydrostatic actuator (3) is driven. Umformmaschine (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Umformmaschine (1) wenigstens eine weitere hydraulisch geregelte Linearachse (2) aufweist, die über einen elektro-hydrostatischen Aktuator (3) oder über einen anderen Antrieb als einen elektro-hydrostatischen Aktuator angetrieben ist.Forming machine (1) according to claim 1, characterized in that the forming machine (1) has at least one further hydraulically controlled linear axis (2) which is driven via an electro-hydrostatic actuator (3) or via a drive other than an electro-hydrostatic actuator is. Umformmaschine (1) nach Anspruch 2, dadurch gekennzeichnet, dass sämtliche hydraulisch geregelte Linearachsen (2) der Umformmaschine (1) jeweils über einen elektro-hydrostatischen Aktuator (3) angetrieben sind.Forming machine (1) according to claim 2, characterized in that all hydraulically controlled linear axes (2) of the forming machine (1) in each case via an electro-hydrostatic actuator (3) are driven. Umformmaschine (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Umformmaschine (1) eine Walzmaschine oder eine Presse, insbesondere eine Schmiedemaschine, vorzugsweise eine Radialschmiedemaschine, ist.Forming machine (1) according to one of claims 1 to 3, characterized in that the forming machine (1) is a rolling machine or a press, in particular a forging machine, preferably a radial forging machine. Umformmaschine (1) nach Anspruch 4, dadurch gekennzeichnet, dass die Walzmaschine eine Ringwalzmaschine (4) ist.Forming machine (1) according to claim 4, characterized in that the rolling machine is a ring rolling machine (4). Ringwalzmaschine (4), umfassend zumindest einen Radialantrieb (5, 6), der mit einer Walzenwelle (9) einer in radialer Richtung wirkenden Radialwalzrolle (10) wirkverbunden ist, und zumindest einen Axialantrieb (7, 8), der mit einer Walzenwelle (9) einer in axialer Richtung wirkenden Axialwalzrolle (11, 12) wirkverbunden ist, dadurch gekennzeichnet, dass der Radialantrieb (5, 6) und/oder der Axialantrieb (7, 8) einen Motor mit hohem Drehmoment umfassen, der ohne Getriebe mit der zugehörigen Walzenwelle (9) wirkverbunden ist.Ring rolling machine (4), comprising at least one radial drive (5, 6) which is operatively connected to a roller shaft (9) of a radially acting radial roller (10), and at least one axial drive (7, 8) provided with a roller shaft (9 ) of an axially acting axial roller (11, 12) is operatively connected, characterized in that the radial drive (5, 6) and / or the axial drive (7, 8) comprise a high-torque motor, which without gearbox with the associated roller shaft (9) is operatively connected. Ringwalzmaschine (4) nach Anspruch 6, dadurch gekennzeichnet, dass der Motor mit hohem Drehmoment ein Torque-Motor ist.Ring rolling machine (4) according to claim 6, characterized in that the high torque motor is a torque motor. Ringwalzmaschine (4) nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass der Motor mit hohem Drehmoment (i) ein Innenläufer oder ein Außenläufer, (ii) ein Servomotor mit Hohlwelle, (iii) ein Motor mit einer herkömmlichen Antriebswelle, (iv) ein elektro-hydrostatischer Aktuator, (v) ein elektromechanischer Motor und/oder (vi) ein bürstenloser Gleichstrommotor ist.Ring rolling machine (4) according to claim 6 or 7, characterized in that the high torque motor (i) an internal rotor or an external rotor, (ii) a Servomotor with hollow shaft, (iii) a motor with a conventional drive shaft, (iv) an electro-hydrostatic actuator, (v) an electromechanical motor and / or (vi) is a brushless DC motor. Ringwalzmaschine (4) nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die Radialwalzrolle (10) zwei koaxial angeordnete und ggf. auch einstückig ausgebildete Walzenwellen (9) umfasst, von denen eine erste der beiden Walzenwellen (9) nach oben und eine zweite der beiden Walzenwellen (9) nach unten weist und an denen jeweils ein Radialantrieb (5, 6) vorgesehen ist.Ring rolling machine (4) according to claim 6 or 7, characterized in that the radial roller (10) comprises two coaxially arranged and possibly also integrally formed roller shafts (9), of which a first of the two roller shafts (9) upwards and a second of two roll shafts (9) facing down and on each of which a radial drive (5, 6) is provided. Ringwalzmaschine (4) nach Anspruch 8, dadurch gekennzeichnet, dass die Radialwalzrolle (10) zwei koaxial angeordnete und ggf. auch einstückig ausgebildete Walzenwellen (9) umfasst, von denen eine erste der beiden Walzenwellen (9) nach oben und eine zweite der beiden Walzenwellen (9) nach unten weist und an denen jeweils ein Radialantrieb (5, 6) vorgesehen ist.Ring rolling machine (4) according to claim 8, characterized in that the radial rolling roller (10) comprises two coaxially arranged and possibly also integrally formed roller shafts (9), of which a first of the two roller shafts (9) upwards and a second of the two roller shafts (9) facing down and on each of which a radial drive (5, 6) is provided. Ringwalzmaschine (4) nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die Ringwalzmaschine (4) mehrere Radialantriebe (5, 6) und/oder mehrere Axialantriebe (7, 8) aufweist und wenigstens einer der Radial- und Axialantriebe (5, 6, 7, 8) einen anderen Antrieb als einen Motor mit hohem Drehmoment, der ohne Getriebe mit der zugehörigen Walzenwelle (9) wirkverbunden ist, umfasst.Ring rolling machine (4) according to claim 6 or 7, characterized in that the ring rolling machine (4) a plurality of radial drives (5, 6) and / or a plurality of axial drives (7, 8) and at least one of the radial and axial drives (5, 6, 7, 8) comprises a drive other than a high torque motor operatively connected to the associated roller shaft (9) without gears. Ringwalzmaschine (4) nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass sämtliche Radialantriebe (5, 6) und/oder sämtliche Axialantriebe (7, 8) einen Motor mit hohem Drehmoment umfassen, der ohne Getriebe mit der zugehörigen Walzenwelle (9) wirkverbunden ist.Ring rolling machine (4) according to claim 6 or 7, characterized in that all radial drives (5, 6) and / or all axial drives (7, 8) comprise a motor with high torque, which is operatively connected without gear with the associated roller shaft (9) , Ringwalzmaschine (4) nach Anspruch 8, dadurch gekennzeichnet, dass die Ringwalzmaschine (4) mehrere Radialantriebe (5, 6) und/oder mehrere Axialantriebe (7, 8) aufweist und wenigstens einer der Radial- und Axialantriebe (5, 6, 7, 8) einen anderen Antrieb als einen Motor mit hohem Drehmoment, der ohne Getriebe mit der zugehörigen Walzenwelle (9) wirkverbunden ist, umfasst.Ring rolling machine (4) according to claim 8, characterized in that the ring rolling machine (4) a plurality of radial drives (5, 6) and / or a plurality of axial drives (7, 8) and at least one of the radial and axial drives (5, 6, 7, 8) comprises a drive other than a high torque motor operatively connected to the associated roller shaft (9) without a gear. Ringwalzmaschine (4) nach Anspruch 8, dadurch gekennzeichnet, dass sämtliche Radialantriebe (5, 6) und/oder sämtliche Axialantriebe (7, 8) einen Motor mit hohem Drehmoment umfassen, der ohne Getriebe mit der zugehörigen Walzenwelle (9) wirkverbunden ist.Ring rolling machine (4) according to claim 8, characterized in that all radial drives (5, 6) and / or all axial drives (7, 8) comprise a motor with high torque, which is operatively connected without gear with the associated roller shaft (9). Ringwalzmaschine (4) nach Anspruch 9, dadurch gekennzeichnet, dass die Ringwalzmaschine (4) mehrere Radialantriebe (5, 6) und/oder mehrere Axialantriebe (7, 8) aufweist und wenigstens einer der Radial- und Axialantriebe (5, 6, 7, 8) einen anderen Antrieb als einen Motor mit hohem Drehmoment, der ohne Getriebe mit der zugehörigen Walzenwelle (9) wirkverbunden ist, umfasst.Ring rolling machine (4) according to claim 9, characterized in that the ring rolling machine (4) a plurality of radial drives (5, 6) and / or a plurality of axial drives (7, 8) and at least one of the radial and axial drives (5, 6, 7, 8) comprises a drive other than a high torque motor operatively connected to the associated roller shaft (9) without a gear. Ringwalzmaschine (4) nach Anspruch 9, dadurch gekennzeichnet, dass sämtliche Radialantriebe (5, 6) und/oder sämtliche Axialantriebe (7, 8) einen Motor mit hohem Drehmoment umfassen, der ohne Getriebe mit der zugehörigen Walzenwelle (9) wirkverbunden ist.Ring rolling machine (4) according to claim 9, characterized in that all radial drives (5, 6) and / or all axial drives (7, 8) comprise a motor with high torque, which is operatively connected without gear with the associated roller shaft (9).
EP15162853.4A 2014-04-11 2015-04-08 Ring rolling machine Active EP2937158B1 (en)

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CN104972026A (en) 2015-10-14
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US20150290689A1 (en) 2015-10-15
CN104972026B (en) 2020-11-06
JP2015202521A (en) 2015-11-16
DE102014005332A1 (en) 2015-10-15
KR20150118050A (en) 2015-10-21
KR101830027B1 (en) 2018-02-19
ES2881546T3 (en) 2021-11-29
KR20170018375A (en) 2017-02-17
US10507502B2 (en) 2019-12-17

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