EP0612436A1 - Process and device for producing transformer windings. - Google Patents

Process and device for producing transformer windings.

Info

Publication number
EP0612436A1
EP0612436A1 EP92923177A EP92923177A EP0612436A1 EP 0612436 A1 EP0612436 A1 EP 0612436A1 EP 92923177 A EP92923177 A EP 92923177A EP 92923177 A EP92923177 A EP 92923177A EP 0612436 A1 EP0612436 A1 EP 0612436A1
Authority
EP
European Patent Office
Prior art keywords
winding
conductor
wires
twisted
support cylinder
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
EP92923177A
Other languages
German (de)
French (fr)
Other versions
EP0612436B1 (en
Inventor
Kurt Jaegersberger
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.)
CAMBIO RAG.SOCIALE;ASTA ELEKTRODRAHT GMBH
Original Assignee
ASTA 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 ASTA GmbH filed Critical ASTA GmbH
Publication of EP0612436A1 publication Critical patent/EP0612436A1/en
Application granted granted Critical
Publication of EP0612436B1 publication Critical patent/EP0612436B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/064—Winding non-flat conductive wires, e.g. rods, cables or cords
    • H01F41/069—Winding two or more wires, e.g. bifilar winding
    • H01F41/07—Twisting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49071—Electromagnet, transformer or inductor by winding or coiling

Definitions

  • the invention relates to a method for producing a winding for transformers from square profile wires.
  • the object of the invention is to provide a method of the type mentioned at the outset which, on the one hand, brings about a further improvement in quality and, on the other hand, is more economical.
  • the method according to the invention is characterized in that the profiled wires are brought together and twisted in a twisting head to form a twisted conductor such that the individual profiled wires run obliquely on the two flat sides of the cross-section in the opposite sense and on the narrow sides of the cross-section by an offset pass from one side to the other and the individual profiled wires arranged one above the other in cross-section, possibly at a distance, are arranged side by side, so that this stranded conductor is at least partially surrounded with insulation, that this stranded conductor is connected to a support cylinder which is connected to the core of the Transformer is placed, is wound according to the transformer winding and that the twisting step of the twisted conductor is controlled via the twisting head according to its actual winding diameter.
  • the twisting step of the twisted conductor is controlled via the twisting head in accordance with its actual winding diameter.
  • each individual wire of the wire conductor should go through exactly one cycle per turn.
  • the twisting step can now be controlled with the method according to the invention via the twisting head in such a way that this requirement is taken into account.
  • cooling duct wire In this type of conductor, the partial conductors have a significantly greater offset, so that the two partial conductor stacks are parallel to one another with a space. An intermediate piece is arranged in this space in the area of the crank. This results in a cooling channel for the coolant passage in the radial direction for the wire conductor. If the twisting step according to the invention is now selected as a function of the winding diameter, radial free cooling channels result and the areas of the cranks lie on a radius. The result is non-turbulent cooling flows.
  • the position of the wire conductor on the support cylinder is continuously recorded and this data is fed to a computer.
  • dimensional controls ensure accurate, dimensionally accurate manufacture. It can, for example, vary the insulating paper layers as well as the choice of the insulating paper thickness differences in the dimensions are easily corrected.
  • Drill conductors are subjected to a steady, continuous pressing force, preferably 100-300 N / cm 2, during winding onto the support cylinder. This smoothes the insulating paper accordingly.
  • the paper folds are also virtually ironed out. These folds of paper can occur due to the scaling on the support cylinder side of the paper insulation. By avoiding these folds, a free flow of the cooling medium through the cooling channel is guaranteed.
  • the stranded conductor which has a punctiform epoxy-coated external insulation, is wound onto the carrying cylinder under the action of heat.
  • the epoxy resin-coated paper for the outermost insulating layer which is polymerized, for example, by the action of heat, means that there is no need to add spacer plates which are removed before the winding is installed and which prevent the paper from bulging out during pressing.
  • An essential feature of the invention is the device for carrying out the method according to the invention.
  • This device according to the invention is characterized in that a stranding basket system, on which the individual coils with the profile wires are arranged, is provided, which is followed by a tarpaulin head for torsion-free guidance of the profile wires and that these profile wires running out are guided into a twisting head, in which the uppermost and lowermost conductors are transferred from the two stacked profile conductor stacks to the other stack by cranking, and in that the twisted conductor produced in the drill head passes through an insulator and via a caterpillar take-off of a transversing winding device having the carrying cylinder for the transformer winding is fed.
  • this device With this device according to the invention, it is possible for the first time to produce a complete winding for a transformer at the winding material producer itself.
  • the support cylinder that can be placed on the transformer core for winding the transformer is clamped in the winding device.
  • the winding can be manufactured directly after its manufacture.
  • this winding device is designed in such a way that the wire conductor feed is constant and the carrying cylinder is moved accordingly. Whether the support cylinder is clamped vertically or horizontally remains unaffected.
  • the transversing winding device consists of a spreading dome mounted in a frame, which can be moved horizontally and vertically.
  • the choice of an expanding mandrel has the advantage of universal use for the most varied of winding or support cylinder diameters.
  • the Spreitzdom is pivotable in the horizontal plane.
  • a sloping position of the support cylinders in the horizontal plane ensures an optimal winding process.
  • a sensor that scans the winding diameter is provided on the winding device for controlling the drill head.
  • the drill head can be controlled via its emitting electrical signals, i. H. the optimum twisting step can thus be set automatically.
  • an electronic length measuring device for the continuous monitoring of the position of the conductor on the support cylinder, the Output signals can be fed to a target / actual value comparator, preferably a computer.
  • a target / actual value comparator preferably a computer.
  • pneumatically or hydraulically loadable rollers are provided to generate the pressing force on the stranded conductor during the winding process.
  • rollers serve to smooth the paper insulation.
  • these rollers are heatable or heatable plates are provided for the action of heat on the wire conductor.
  • the punctiform, cast resin-coated paper is polymerized in this way. The paper structures which have reduced the cross section of the cooling channel are thus avoided.
  • a wire conductor machine for producing wire conductors is shown.
  • This twisted pair machine consists of a stranding basket system 1, a planetary head 2, a twisting head 3, an insulator 4, a caterpillar take-off 5 and a transformer winding device 6.
  • the individual coils 7 with the angular profile wires 10 are arranged on the stranding basket system 1.
  • several yoke rings 8, 9 can be arranged one behind the other.
  • Each of the yoke rings can be individually rotated and coupled, so that all of the yoke rings 8, 9 can also be rotated together.
  • Each coil 7 has a brake.
  • the profile wires 10 between the yoke rings must be guided exactly, protected from kinks and twists.
  • each of the coil 7 is running profile wire 10 monitored with the aid of a device, for example a drop bar, which in the event of wire break or wire end z. B. falls by gravity and stops the wire conductor machine.
  • each of the yoke rings 8, 9 is equipped with a disc brake in order to be able to brake the yoke ring 8, 9 in an appropriate time.
  • a disc brake In order to achieve a torsion-free guidance of the profile wires 10, it is necessary to provide a planetary head 2 and back turns between the yoke rings 8, 9 and the yoke ring 8 and the drill head 3.
  • twisting or roving of the individual profile wires 10 takes place in the twisting head 3.
  • the top and bottom conductors are made from two adjacent stacks of the profile wires 10 without damaging the varnish or coating already applied other insulation changed over to the other stack.
  • the twisted conductor 11 now formed in the drill head 3 is wrapped in a variety of layers of insulating paper, glass fiber tapes or foils in the subsequent insulator 4, which may consist of a plurality of coils arranged one behind the other.
  • the insulation can only be applied in certain sections, such as, for example, only at the crimping points, or continuously over the entire wire conductor.
  • a caterpillar take-off 5 is provided for pulling off the twisted pair 11 from the twisted pair machine, which can be pivoted to adapt to the bundle dimension of the twisted pair.
  • the take-up device 6 is connected downstream of the caterpillar take-off 5.
  • This take-up device 6 consists of a transversing spreading dome 12 which can be moved vertically and horizontally in a frame 13. In addition, this Spreitzdom 12 can still be swiveled in the horizontal plane.
  • the winding is now produced directly after the production of the conductor. It is irrelevant whether the transformer winding is manufactured on the support cylinder 14 by means of strips or spacer plates.
  • an encoder 15 is provided which scans the winding diameter. With this transmitter 15, the winding data of the transformer winding, such as the winding diameter, for example, and corresponding signals control the drilling head 3 such that the optimum twisting step is always selected.

Abstract

PCT No. PCT/AT92/00143 Sec. 371 Date May 11, 1994 Sec. 102(e) Date May 11, 1994 PCT Filed Nov. 9, 1992 PCT Pub. No. WO93/10543 PCT Pub. Date May 27, 1993A process and a device for performing the process are each provided, where the process produces a transformer winding from angularly profiled wires, where the angularly profiled wires are wound by guiding the same into a twist head and arranging such unwound profiled wires into two adjacently located conductor stacks, upper and lower conductors from the respective stacks being interchanged to the other stack through an offset. A twisted conductor is formed and is wound on a support cylinder in order to conform the twisted conductor to a transformer winding which is to be placed on the core of the transformer. While winding the twisted conductor onto the support cylinder, the position of the same is continuously detected, and an output signal indicating the position is outputted to a comparing mechanism for comparing the actual detected position to a preset value. In addition, the diameter of the resulting winding is scanned, and based upon the winding diameter, the twist head is controlled accordingly.

Description

Verfahren zur Herstellung einer Wicklung für Transformatoren und Einrichtung zur Durchführung des Verfahrens. Process for producing a winding for transformers and device for carrying out the process.
Die Erfindung betrifft ein Verfahren zur Herstellung einer Wicklung für Transformatoren aus eckigen Profildrähten.The invention relates to a method for producing a winding for transformers from square profile wires.
Bisher war es üblich, in einer Fertigungsstätte den Drillei¬ ter und in einer weiteren Fertigungsstätte die Wicklung für den Transformator herzustellen. Bei dieser Vorgangsweise wird also der Drilleiter in seiner Fertigungsstätte auf eine Transporttrommel gewickelt. Meist hat die Transporttrommel einen wesentlich kleineren Durchmesser als der Kerndurchmes¬ ser der Transformatorenwicklung ist. Die Folge davon ist, eine zweimalige unnötige Verformung des Drilleiters.Until now, it was customary to produce the drill conductor in one production facility and the winding for the transformer in another production facility. With this procedure, the twisted conductor is wound on a transport drum in its production facility. Usually the transport drum has a much smaller diameter than the core diameter of the transformer winding. The consequence of this is a two-fold unnecessary deformation of the wire.
Aufgabe der Erfindung ist es, ein Verfahren der eingangs zi¬ tierten Art zu schaffen, das einerseits eine weitere Quali¬ tätsverbesserung mit sich bringt und andererseits eine höhere Wirtschaftlichkeit aufweist.The object of the invention is to provide a method of the type mentioned at the outset which, on the one hand, brings about a further improvement in quality and, on the other hand, is more economical.
Das erfindungsgemäße Verfahren ist dadurch gekennzeichnet, daß die Profildrähte derart in einem Drillkopf zu einem Dril¬ leiter zusammengeführt und verdrillt werden, daß die einzel- nen Profildrähte an den beiden Flachseiten des Querschnitts im entgegengesetzten Sinne schräg verlaufen und an den Schmalseiten des Querschnitts durch eine Kröpfung von einer Seite auf die andere übertreten und die übereinander angeord¬ neten einzelnen Profildrähte im Querschnitt, gegebenenfalls mit Abstand, nebeneinander angeordnet sind, daß dieser Dril¬ leiter mindestens abschnittsweise mit Isolation umgeben wird, daß dieser Drilleiter auf einen Tragzylinder, der auf den Kern des Transformators aufgesetzt wird, entsprechend der Transformatorenwicklung gewickelt wird und daß der Verdril- lungsschritt des Drilleiters entsprechend seinem tatsächli¬ chen Windungsdurchmesser über den Drillkopf gesteuert wird.The method according to the invention is characterized in that the profiled wires are brought together and twisted in a twisting head to form a twisted conductor such that the individual profiled wires run obliquely on the two flat sides of the cross-section in the opposite sense and on the narrow sides of the cross-section by an offset pass from one side to the other and the individual profiled wires arranged one above the other in cross-section, possibly at a distance, are arranged side by side, so that this stranded conductor is at least partially surrounded with insulation, that this stranded conductor is connected to a support cylinder which is connected to the core of the Transformer is placed, is wound according to the transformer winding and that the twisting step of the twisted conductor is controlled via the twisting head according to its actual winding diameter.
Mit dem erfindungsgemäßen Verfahren ist es erstmals möglich, das Zwischenaufhaspeln des Drilleiters zu vermeiden. Es wer- den also zwei Deformierungen des fertigen Drilleiters nicht mehr durchgeführt. Durch die eingangs zitierten unnötigen Verformungen des Drilleiters ist es zu einer Aufbauschung der Papierisolation gekommen, die bei der erstellten Transforma- torenwicklung zu einer Verengung der Kühlkanäle geführt hat. Eine schlechtere KühlmittelZirkulation im Transformator ist daher die Folge.With the method according to the invention, it is possible for the first time to avoid intermediate winding of the stranded conductor. It who- the two deformations of the finished wire conductor no longer carried out. As a result of the unnecessary deformations of the wire conductor cited at the beginning, the paper insulation has bulged, which has led to a narrowing of the cooling channels in the transformer winding. This results in poorer coolant circulation in the transformer.
Nach einem besonderen Merkmal der Erfindung wird der Verdril- lungsschritt des Drilleiters entsprechend seinem tatsächli¬ chen Windungsdurchmesser über den Drillkopf gesteuert.According to a special feature of the invention, the twisting step of the twisted conductor is controlled via the twisting head in accordance with its actual winding diameter.
Einer weiteren Forderung der Wicklungsberechnung kann mit der Erfindung nachgekommen werden. So sollte jeder einzelne Pro- fildraht des Drilleiters pro Windung genau einen Zyklus durchlaufen.Another requirement of the winding calculation can be met with the invention. For example, each individual wire of the wire conductor should go through exactly one cycle per turn.
Der Verdrillungsschritt kann nun mit dem erfindungsgemäßen Verfahren über den Drillkopf derart gesteuert werden, daß dieser Forderung Rechnung getragen wird.The twisting step can now be controlled with the method according to the invention via the twisting head in such a way that this requirement is taken into account.
Insbesondere ist dies auch in Hinblick auf den sogenannten Kühl-Kanal-Drilleiter von Bedeutung. Bei diesem Typ des Dril¬ leiters weisen die Teilleiter eine wesentlich stärkere Kröp¬ fung auf, sodaß die beiden Teilleiterstapel mit einem Ab- Standsraum zueinander parallel liegen. In diesem Abstandsraum ist im Bereich der Kröpfung ein Zwischenstück angeordnet. Es ergibt sich somit für den Drilleiter ein Kühlkanal für den Kühlmitteldurchtritt in radialer Richtung. Wird nun der Ver¬ drillungsschritt entsprechend der Erfindung in Abhängigkeit des Windungsdurchmessers gewählt, so ergeben sich radiale freie Kühlkanäle und die Bereiche der Kröpfungen liegen auf einem Radius. Ver irbelungsfreie Kühldurchflüsse sind die Folge.This is particularly important with regard to the so-called cooling duct wire. In this type of conductor, the partial conductors have a significantly greater offset, so that the two partial conductor stacks are parallel to one another with a space. An intermediate piece is arranged in this space in the area of the crank. This results in a cooling channel for the coolant passage in the radial direction for the wire conductor. If the twisting step according to the invention is now selected as a function of the winding diameter, radial free cooling channels result and the areas of the cranks lie on a radius. The result is non-turbulent cooling flows.
Gemäß einer besonderen Ausgestaltung der Erfindung wird die Position des Drilleiters auf dem Tragzylinder kontinuierlich erfaßt und diese Daten werden einem Rechner zugeführt. Durch diese Kontrollen der Abmessungen wird eine genaue maßhaltige Fertigung erreicht. Es kann bespielsweise durch die Variation der Isolierpapierlagen wie auch der Wahl der Isolierpapier¬ dicke Differenzen bei den Abmessungen leicht korrigiert wer¬ den.According to a special embodiment of the invention, the position of the wire conductor on the support cylinder is continuously recorded and this data is fed to a computer. These dimensional controls ensure accurate, dimensionally accurate manufacture. It can, for example, vary the insulating paper layers as well as the choice of the insulating paper thickness differences in the dimensions are easily corrected.
Nach einer weiteren Ausgestaltung der Erfindung wird derAccording to a further embodiment of the invention
Drilleiter beim Wickeln auf den Tragzylinder einer stetigen, kontinuierlichen Preßkraft, vorzugsweise 100 - 300 N/cm2 aus¬ gesetzt. Dadurch wird das Isolierpapier entsprechend geglättet. Es er- folgt auch quasi ein Ausbügeln der Papierfalten. Diese Pa¬ pierfalten können durch das Schoppen an der Tragzylinderseite der Papierisolation auftreten. Durch die Vermeidung dieser Falten ist ein freier Durchfluß des Kühlmediums durch den Kühlkanal gewährleistet.Drill conductors are subjected to a steady, continuous pressing force, preferably 100-300 N / cm 2, during winding onto the support cylinder. This smoothes the insulating paper accordingly. The paper folds are also virtually ironed out. These folds of paper can occur due to the scaling on the support cylinder side of the paper insulation. By avoiding these folds, a free flow of the cooling medium through the cooling channel is guaranteed.
Gemäß einem weiteren Merkmal der Erfindung wird der eine punktförmig epoxidbeschichtete Außenisolation aufweisende Drilleiter unter Hitzeeinwirkung auf den Tragzylinder aufge¬ wickelt. Durch das epoxidharzbeschichtete Papier für die äu- ßerste Isolierlage, die beispielsweise durch Hitzeeinwirkung polymerisiert wird, kann die Beilage von Distanzplättchen, die vor dem Einbau der Wicklung entfernt werden und die die Papieraufbauschung beim Verpressen verhindern, entfallen.According to a further feature of the invention, the stranded conductor, which has a punctiform epoxy-coated external insulation, is wound onto the carrying cylinder under the action of heat. The epoxy resin-coated paper for the outermost insulating layer, which is polymerized, for example, by the action of heat, means that there is no need to add spacer plates which are removed before the winding is installed and which prevent the paper from bulging out during pressing.
Ein wesentliches Merkmal der Erfindung ist die Einrichtung zur Durchführung des erfindungsgemäßen Verfahrens. Diese er¬ findungsgemäße Einrichtung ist dadurch gekennzeichnet, daß eine Verseilkorbanlage, auf der die einzelnen Spulen mit den Profildrähten angeordnet sind, vorgesehen ist, der ein Pla- nentenkopf zur verwindungsfreien Führung der Profildrähte nachgeordnet ist und daß diese ablaufenden Profildrähte in einen Drillkopf geführt sind, in dem aus zwei nebeneinander¬ liegenden Profilleiterstapeln jeweils der oberste und der un¬ terste Leiter durch Kröpfung in den anderen Stapel hinüberwechselt und daß der im Drillkopf hergestellte Drilleiter einen Isolationsumspinner durchläuft und über einen Raupenabzug einer transversierenden, den Tragzylinder für die Transformatorenwicklung aufweisenden Aufwickelvor¬ richtung zugeführt ist. Mit dieser erfindungsgemäßen Einrichtung ist es erstmals mög¬ lich eine komplette Wicklung für einen Transformator beim Wickelmaterialerzeuger selbst herzustellen. Der auf den Transformatorkern aufsetzbare Tragzylinder für die Wicklung des Transformators wird in die Aufwickelvorrichtung einge¬ spannt. Entsprechend den Berechnungen und den Konstruktions¬ vorgaben kann die Wicklung direkt nach ihrer Herstellung ge¬ fertigt werden. Um unnötige Deformierungen des Drilleiters zu vermeiden ist diese AufWickelvorrichtung derart ausgebildet, daß die Drilleiterzuführung konstant ist und der Tragzylinder entsprechend bewegt wird. Ob der Tragzylinder senkrecht oder waagrecht eingespannt wird, bleibt davon unberührt.An essential feature of the invention is the device for carrying out the method according to the invention. This device according to the invention is characterized in that a stranding basket system, on which the individual coils with the profile wires are arranged, is provided, which is followed by a tarpaulin head for torsion-free guidance of the profile wires and that these profile wires running out are guided into a twisting head, in which the uppermost and lowermost conductors are transferred from the two stacked profile conductor stacks to the other stack by cranking, and in that the twisted conductor produced in the drill head passes through an insulator and via a caterpillar take-off of a transversing winding device having the carrying cylinder for the transformer winding is fed. With this device according to the invention, it is possible for the first time to produce a complete winding for a transformer at the winding material producer itself. The support cylinder that can be placed on the transformer core for winding the transformer is clamped in the winding device. In accordance with the calculations and the design specifications, the winding can be manufactured directly after its manufacture. In order to avoid unnecessary deformation of the wire conductor, this winding device is designed in such a way that the wire conductor feed is constant and the carrying cylinder is moved accordingly. Whether the support cylinder is clamped vertically or horizontally remains unaffected.
Nach einem weiteren Merkmal der Erfindung besteht die trans- versierende Aufwickelvorrichtung aus einem in einem Gerüst gelagerten Spreitzdom, der horizontal und vertikal bewegbar ist. Die Wahl eines Spreitzdornes bringt den Vorteil der uni¬ versellen Verwendung für die verschiedensten Wickel- bzw. Tragzylinder-Durchmesser mit sich.According to a further feature of the invention, the transversing winding device consists of a spreading dome mounted in a frame, which can be moved horizontally and vertically. The choice of an expanding mandrel has the advantage of universal use for the most varied of winding or support cylinder diameters.
Gemäß einer weiteren Ausgestaltung der Erfindung ist der Spreitzdom in der horizontalen Ebene schwenkbar. Bei der Wicklungserstellung hat sich gezeigt, daß eine Sσhrägstellung der Tragzylinder in der horizontalen Ebene einen optimalen Wickelvorgang gewährleistet.According to a further embodiment of the invention, the Spreitzdom is pivotable in the horizontal plane. When creating the winding, it has been shown that a sloping position of the support cylinders in the horizontal plane ensures an optimal winding process.
Nach einem besonderen Merkmal der Er indung ist zur Steuerung des Drillkopfes ein den Windungsdurchmesser abtastender Geber an der AufWickelvorrichtung vorgesehen. Mit einem solchen Ge¬ ber, der die Windungsdaten wie beispielsweise den Windungs¬ durchmesser über gegebenenfalls einen Rechner erfaßt, ist über seine abgebenden elektrischen Signale der Drillkopf steuerbar, d. h. der optimale Verdrillungsschritt kann da- durch automatisiert eingestellt werden.According to a special feature of the invention, a sensor that scans the winding diameter is provided on the winding device for controlling the drill head. With such a sensor, which detects the winding data such as the winding diameter via a computer, if necessary, the drill head can be controlled via its emitting electrical signals, i. H. the optimum twisting step can thus be set automatically.
Nach einer Ausgestaltung der Er indung ist zur kontinuierli¬ chen Positionsüberwachung des Drilleiters auf den Tragzylin¬ der eine elektronische Längenmeßeinrichtung vorgesehen, deren Ausgangssignale einem Soll-Istwert-Vergleicher, vorzugsweise einem Rechner zuführbar sind. Dadurch kann eine konti¬ nuierliche Hochrechnung auf die tatsächliche Gesamtbauhöhe durchgeführt werden. Wie ja allgemein bekannt, muß die Wicklungshöhe der Eisenjochhöhe entsprechen. Maßhaltige Fertigungen werden dadurch gewährleistet.According to one embodiment of the invention, an electronic length measuring device is provided for the continuous monitoring of the position of the conductor on the support cylinder, the Output signals can be fed to a target / actual value comparator, preferably a computer. As a result, continuous extrapolation to the actual overall height can be carried out. As is well known, the winding height must correspond to the Eisenjochhöhe. Dimensional manufacturing is guaranteed.
Gemäß einer Weiterbildung der Erfindung sind zur Erzeugung der Preßkraft auf den Drilleiter während des Wickelvorganges pneumatisch oder hydraulisch belastbare.Rollen vorgesehen.According to a development of the invention, pneumatically or hydraulically loadable rollers are provided to generate the pressing force on the stranded conductor during the winding process.
Wie bereits erwähnt, dienen diese Rollen zum Glätten der Pa¬ pierisolation.As already mentioned, these rollers serve to smooth the paper insulation.
Nach einem weiteren Merkmal der Erfindung sind diese Rollen beheizbar oder sind zur Hitzeeinwirkung auf den Drilleiter beheizbare Platten vorgesehen. Das punktförmig, gießharzbe¬ schichtete Papier wird so polymerisiert. Die Papieraufbau¬ schungen, die den Kühlkanalquerschnitt reduziert haben, wer¬ den so vermieden.According to a further feature of the invention, these rollers are heatable or heatable plates are provided for the action of heat on the wire conductor. The punctiform, cast resin-coated paper is polymerized in this way. The paper structures which have reduced the cross section of the cooling channel are thus avoided.
Die Erfindung wird an Hand eines in der Zeichnung dargestell¬ ten Ausführungsbeispieles näher erläutert.The invention is explained in more detail with reference to an exemplary embodiment shown in the drawing.
Gemäß der Fig. ist eine Drilleitermaschine zur Herstellung von Drilleitern dargestellt. Diese Drilleitermaschine besteht aus einer Verseilkorbanlage 1, einem Planetenkopf 2, einem Drillkopf 3 einem Isolationsumspinner 4, einem Raupenabzug 5 und einer Trafowickelvorrichtung 6.According to the figure, a wire conductor machine for producing wire conductors is shown. This twisted pair machine consists of a stranding basket system 1, a planetary head 2, a twisting head 3, an insulator 4, a caterpillar take-off 5 and a transformer winding device 6.
Auf der Verseilkorbanlage 1 sind die einzelnen Spulen 7 mit den eckigen Profildrähten 10 angeordnet. Bei Drilleiterma¬ schinen für die Herstellung von Großdrilleitern können meh¬ rere Jochkränze 8, 9 hintereinander angeordnet sein. Jeder der Jochkränze ist einzeln drehbar und ankuppelbar, damit auch alle Jochkränze 8, 9 gemeinsam drehbar sind. Jede Spule 7 weist eine Bremse auf. Bei hintereinander angeordneten Jochkränzen 8, 9 müssen die Profildrähte 10 zwischen den Jochkränzen exakt, geschützt vor Knickungen und Verdrehungen geführt werden. Darüberhinaus wird jeder von der Spule 7 ab- laufende Profildraht 10 mit Hilfe einer Vorrichtung, bei¬ spielsweise eines Fallbügels überwacht, die bei Drahtbruch oder Drahtende z. B. durch die Schwerkraft fällt und die Drilleitermaschine stillsetzt.The individual coils 7 with the angular profile wires 10 are arranged on the stranding basket system 1. In the case of wire conductor machines for the production of large wire conductors, several yoke rings 8, 9 can be arranged one behind the other. Each of the yoke rings can be individually rotated and coupled, so that all of the yoke rings 8, 9 can also be rotated together. Each coil 7 has a brake. In the case of yoke rings 8, 9 arranged one behind the other, the profile wires 10 between the yoke rings must be guided exactly, protected from kinks and twists. In addition, each of the coil 7 is running profile wire 10 monitored with the aid of a device, for example a drop bar, which in the event of wire break or wire end z. B. falls by gravity and stops the wire conductor machine.
Ferner ist jeder der Jochkränze 8, 9 mit einer Scheibenbremse ausgestattet, um den Jochkranz 8, 9 in angemessener Zeit ab¬ bremsen zu können. Um eine verwindungsfreie Führung der Pro¬ fildrähte 10 zu erzielen, ist es notwendig, einen Planeten- köpf 2 und Rückdrehungen zwischen den Jochkränzen 8, 9 und dem Jochkranz 8 und dem Drillkopf 3 vorzusehen.Furthermore, each of the yoke rings 8, 9 is equipped with a disc brake in order to be able to brake the yoke ring 8, 9 in an appropriate time. In order to achieve a torsion-free guidance of the profile wires 10, it is necessary to provide a planetary head 2 and back turns between the yoke rings 8, 9 and the yoke ring 8 and the drill head 3.
Im Drillkopf 3 erfolgt die sogenannte Verdrillung oder Verrö- belung der einzelnen Profildrähte 10. Dabei wird mit Hilfe von komplizierten mechanischen Verlegemechanismen aus zwei nebeneinander liegenden Stapeln der Profildrähte 10 jeweils der oberste und der unterste Leiter ohne Verletzung der even¬ tuell bereits aufgetragenen Lack- oder anderen Isolation in den anderen Stapel hinübergewechselt.The so-called twisting or roving of the individual profile wires 10 takes place in the twisting head 3. With the aid of complicated mechanical laying mechanisms, the top and bottom conductors are made from two adjacent stacks of the profile wires 10 without damaging the varnish or coating already applied other insulation changed over to the other stack.
Der nun im Drillkopf 3 entstandene Drilleiter 11 wird in dem darauffolgenden Isolationsumspinner 4, der aus mehreren hin¬ tereinander angeordneten Umspinnem bestehen kann, mit ver¬ schiedensten Lagen von Isolierpapier, Glasseidebändern oder Folien umwickelt. Die Isolierung kann nur in bestimmten Ab¬ schnitten, wie bespielsweise nur bei den Kröpfstellen oder auch kontinuierlich über den kompletten Drilleiter aufge¬ bracht werden.The twisted conductor 11 now formed in the drill head 3 is wrapped in a variety of layers of insulating paper, glass fiber tapes or foils in the subsequent insulator 4, which may consist of a plurality of coils arranged one behind the other. The insulation can only be applied in certain sections, such as, for example, only at the crimping points, or continuously over the entire wire conductor.
Für den Abzug des Drilleiters 11 aus der Drilleitermaschine ist ein Raupenabzug 5 vorgesehen, der zur Anpassung an die Bündeldimension des Drilleiters schwenkbar ist.A caterpillar take-off 5 is provided for pulling off the twisted pair 11 from the twisted pair machine, which can be pivoted to adapt to the bundle dimension of the twisted pair.
Dem Raupenabzug 5 nachgeschaltet ist die Aufwickelvorrichtung 6. Diese Aufwickelvorrichtung 6 besteht aus einem transver- sierenden Spreitzdom 12, der in einem Gerüst 13 sowohl ver¬ tikal als auch horizontal bewegbar ist. Darüberhinaus ist dieser Spreitzdom 12 noch in der horizontalen Ebene schwenkbar. Auf diesen Spreitzdom 12 wird ein Tragzylinder 14, der dann direkt auf den Transformatorkern aufsetzbar ist, angeordnet.The take-up device 6 is connected downstream of the caterpillar take-off 5. This take-up device 6 consists of a transversing spreading dome 12 which can be moved vertically and horizontally in a frame 13. In addition, this Spreitzdom 12 can still be swiveled in the horizontal plane. A support cylinder 14, which can then be placed directly on the transformer core, is arranged on this spreading dome 12.
Entsprechend den Berechnungen und den Konstruktionsvorgaben wird nun die Wicklung direkt nach der Herstellung des Dril¬ leiters gefertigt. Ob die Fertigung der Transformatorenwick¬ lung auf dem Tragzylinder 14 mittels Leisten oder Ab- standsplättchen erfolgt, ist dabei unerheblich.In accordance with the calculations and the design specifications, the winding is now produced directly after the production of the conductor. It is irrelevant whether the transformer winding is manufactured on the support cylinder 14 by means of strips or spacer plates.
Zur Steuerung des Drillkopfes 3 ist ein den Windungsdurchmes¬ ser abtastender Geber 15 vorgesehen. Mit diesem Geber 15 wer¬ den die Windungsdaten der Transformatorenwicklung, wie bei¬ spielsweise der Windungsdurchmesser erfaßt und entsprechende Signale steuern den Drillkopf 3 derart, daß immer der opti¬ male Verdrillungsschritt gewählt wird. To control the drill head 3, an encoder 15 is provided which scans the winding diameter. With this transmitter 15, the winding data of the transformer winding, such as the winding diameter, for example, and corresponding signals control the drilling head 3 such that the optimum twisting step is always selected.

Claims

P AT E N TAN S P RÜ C H E P AT EN TAN SP RÜ CHE
1. Verfahren zur Herstellung einer Wicklung für Transformato¬ ren aus eckigen Profildrähten (10), dadurch gekennzeichnet, daß die Profildrähte (10) derart in einem Drillkopf (3) zu einem Drilleiter (11) zusammengeführt und verdrillt werden, daß die einzelnen Profildrähte (10) an den beiden Flachseiten des Querschnitts im entgegengesetzten Sinne schräg verlaufen und an den Schmalseiten des Querschnitts durch eine Kröpfung von einer Seite auf die andere übertreten und die übereinan¬ der angeordneten einzelnen Profildrähte (10) im Querschnitt, gegebenenfalls mit Abstand, nebeneinander angeordnet sind, daß dieser Drilleiter (11) mindestens abschnittsweise mit Isolation umgeben wird, daß dieser Drilleiter (11) auf einen Tragzylinder (14), der auf den Kern des Transformators aufge¬ setzt wird, entsprechend der Transformatorenwicklung gewic¬ kelt wird.1. A method for producing a winding for transformers from angular profiled wires (10), characterized in that the profiled wires (10) are combined and twisted in a twisting head (3) to form a twisted conductor (11) in such a way that the individual profiled wires ( 10) run obliquely on the two flat sides of the cross section in the opposite sense and pass from one side to the other on the narrow sides of the cross section by means of a crank and the individual profile wires (10) arranged one above the other are arranged next to one another in cross section, optionally at a distance that this stranded conductor (11) is surrounded at least in sections with insulation, that this stranded conductor (11) is wound on a support cylinder (14) which is placed on the core of the transformer in accordance with the transformer winding.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Verdrillungsschritt des Drilleiters (11) entsprechend seinem tatsächlichen Windungsdurchmesser über den Drillkopf (3) ge¬ steuert wird.2. The method according to claim 1, characterized in that the twisting step of the twisted conductor (11) is controlled according to its actual winding diameter via the twisting head (3).
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Position des Drilleiters (11) auf dem Tragzylinder3. The method according to claim 1 or 2, characterized in that the position of the twist conductor (11) on the support cylinder
(14) kontinuierlich erfaßt wird und diese Daten einem Rechner zugeführt werden.(14) is continuously recorded and this data is fed to a computer.
4. Verfahren nach mindestens einem der Ansprüche 1 bis 3, da- durch gekennzeichnet, daß der Drilleiter (11) beim Wickeln auf den Tragzylinder (14) einer stetigen, kontinuierlichen Preßkraft, vorzugsweise 100 - 300 N/cm2, ausgesetzt wird. 4. The method according to at least one of claims 1 to 3, characterized in that the twisted conductor (11) is subjected to a continuous, continuous pressing force, preferably 100-300 N / cm 2 , during winding onto the support cylinder (14).
5. Verfahren nach mindestens einem der Ansprüche 1 bis 4, da- durch gekennzeichnet, daß der eine punktförmig epoxidbe- schichtete Außenisolation aufweisende Drilleiter (11) unter Hitzeeinwirkung auf den Tragzylinder (14) aufgewickelt wird.5. The method according to at least one of claims 1 to 4, characterized in that the stranded conductor (11), which has a punctiform epoxy-coated external insulation, is wound onto the carrying cylinder (14) under the action of heat.
6. Einrichtung zur Durchführung des Verfahrens nach minde- stens einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß eine Verseilkorbanlage (1), auf der die einzelnen Spulen (7) mit den Profildrähten (10) angeordnet sind, vorgesehen ist, der ein Planetenkopf (2) zur verwindungsfreien Führung der Profildrähte (10) nachgeordnet ist und daß diese ablau- fenden Profildrähte (10) in einen Drillkopf (3) geführt sind, in dem aus zwei nebeneinanderliegenden Profilleiterstapeln jeweils der oberste und der unterste Leiter durch Kröpfung in den anderen Stapel hinüberwechselt und daß der im Drillkopf (3) hergestellte Drilleiter (11) einen Isolationsumspinner (4) durchläuft und über einen Raupenabzug (5) einer transver- sierenden, den Tragzylinder (14) für die Transformatorenwick¬ lung aufweisenden Aufwickelvorrichtung (6) zugegeführt ist.6. Device for performing the method according to at least one of claims 1 to 5, characterized in that a stranding cage system (1), on which the individual coils (7) with the profile wires (10) are arranged, is provided, the one Planet head (2) for torsion-free guiding of the profile wires (10) and that these expiring profile wires (10) are guided into a drill head (3), in which the top and bottom conductors are offset from the two adjacent profile conductor stacks changes over another stack and that the twisted conductor (11) produced in the twisting head (3) passes through an insulator (4) and is fed via a caterpillar take-off (5) to a transversing winding device (6) which has the carrying cylinder (14) for the transformer winding is.
7. Einrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die transversierende Aufwickelvorrichtung (6) aus einem in einem Gerüst (13) gelagerten Spreitzdom (12) besteht, der horizontal und vertikal bewegbar ist.7. Device according to claim 6, characterized in that the transversing winding device (6) consists of a Spreitzdom (12) mounted in a frame (13) which is horizontally and vertically movable.
8. Einrichtung nach Anspruch 7, dadurch gekennzeichnet, daß der Spreitzdom (12) in der horizontalen Ebene schwenkbar ist.8. Device according to claim 7, characterized in that the Spreitzdom (12) is pivotable in the horizontal plane.
9. Einrichtung nach einem der Ansprüche 6 bis 8, dadurch ge¬ kennzeichnet, daß zur Steuerung des Drillkopfes (3) ein den Windungsdurchmesser abtastender Geber (15) an der Aufwickel¬ vorrichtung (6) vorgesehen ist. 9. Device according to one of claims 6 to 8, characterized ge indicates that to control the drill head (3) a winding diameter sensing encoder (15) on the winding device (6) is provided.
10. Einrichtung nach mindestens einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, daß zur kontinuierlichen Positions- überwachung des Drilleiters (11) auf den Tragzylinder (14) eine elektronische Längenmeßeinrichtung vorgesehen ist, deren AusgangsSignale einem Soll-Istwert-Vergleicher vorzugsweise einem Rechner zuführbar sind.10. Device according to at least one of claims 6 to 9, characterized in that an electronic length measuring device is provided for the continuous position monitoring of the twist conductor (11) on the support cylinder (14), the output signals of which can be fed to a target / actual value comparator, preferably a computer are.
11. Einrichtung nach mindestens einem der Ansprüche 6 bis 10, dadurch gekennzeichnet, daß zur Erzeugung der Preßkraft auf den Drilleiter (11) während des Wickelvorganges pneumatisch oder hydraulisch belastbare Rollen vorgesehen sind.11. The device according to at least one of claims 6 to 10, characterized in that pneumatically or hydraulically loadable rollers are provided for generating the pressing force on the twisted conductor (11) during the winding process.
12. Einrichtung nach Asnpruch 11, dadurch gekennzeichnet, daß die Rollen beheizbar sind.12. Device according to Asnpruch 11, characterized in that the rollers are heated.
13. Einrichtung nach einem der Ansprüche 6 bis 11, dadurch gekennzeichnet, daß zur Hitzeeinwirkung auf den Drilleiter (11) beheizbare Metallplatten vorgesehen sind. 13. Device according to one of claims 6 to 11, characterized in that heatable metal plates are provided for the action of heat on the stranded conductor (11).
EP92923177A 1991-11-15 1992-11-09 Process and device for producing transformer windings Expired - Lifetime EP0612436B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT2275/91 1991-11-15
AT0227591A AT399613B (en) 1991-11-15 1991-11-15 METHOD FOR PRODUCING A WINDING FOR TRANSFORMERS AND DEVICE FOR IMPLEMENTING THE METHOD
PCT/AT1992/000143 WO1993010543A1 (en) 1991-11-15 1992-11-09 Process and device for producing transformer windings

Publications (2)

Publication Number Publication Date
EP0612436A1 true EP0612436A1 (en) 1994-08-31
EP0612436B1 EP0612436B1 (en) 1995-08-09

Family

ID=3531332

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92923177A Expired - Lifetime EP0612436B1 (en) 1991-11-15 1992-11-09 Process and device for producing transformer windings

Country Status (6)

Country Link
US (1) US5584438A (en)
EP (1) EP0612436B1 (en)
AT (2) AT399613B (en)
CA (1) CA2123504A1 (en)
DE (1) DE59203247D1 (en)
WO (1) WO1993010543A1 (en)

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CN110767384A (en) * 2019-11-01 2020-02-07 安徽华电线缆股份有限公司 Installation wire stranding machine for aviation
CN112071608A (en) * 2020-09-15 2020-12-11 厦门铭奥自动化科技有限公司 High-frequency transformer production line

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CN110767384B (en) * 2019-11-01 2020-12-01 安徽华电线缆股份有限公司 Installation wire stranding machine for aviation
CN112071608A (en) * 2020-09-15 2020-12-11 厦门铭奥自动化科技有限公司 High-frequency transformer production line

Also Published As

Publication number Publication date
CA2123504A1 (en) 1993-05-27
ATE126386T1 (en) 1995-08-15
ATA227591A (en) 1994-10-15
EP0612436B1 (en) 1995-08-09
AT399613B (en) 1995-06-26
WO1993010543A1 (en) 1993-05-27
DE59203247D1 (en) 1995-09-14
US5584438A (en) 1996-12-17

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