Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H39/00—Associating, collating, or gathering articles or webs
  • B65H39/16—Associating two or more webs
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
  • H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2301/00—Handling processes for sheets or webs
  • B65H2301/40—Type of handling process
  • B65H2301/41—Winding, unwinding
  • B65H2301/414—Winding
  • B65H2301/4143—Performing winding process
  • B65H2301/41432—Performing winding process special features of winding process
  • B65H2301/414324—Performing winding process special features of winding process involving interleaf web/sheet, e.g. liner
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
  • H01B17/00—Insulators or insulating bodies characterised by their form
  • H01B17/26—Lead-in insulators; Lead-through insulators
  • H01B17/28—Capacitor type

Definitions

• Winding machine for producing egg ⁇ ner implementation for very high voltages in a longitudinal direction of a winding axis of the opposite holding means which are arranged for storing and rotating a Hochschreibslei ⁇ ters as a winding core, and means for Alloca- ren of winding layers, which are wound on the high voltage conductor to form a coil.
• Such a winding machine is known from the prior art be ⁇ already.
• Bushings for high voltages are produced in such a manner that band-shaped paper is wrapped around a Wi ⁇ ckelkern, wherein a high voltage wire is used as a winding core.
• the imple ⁇ tion prepared in this manner is provided for guiding high voltages by any housing walls, which are at a ground potential.
• the passage through the housing wall often has a change in the isolation environment in the wake.
• electrically conductive deposits are introduced, which serve for the controlled degradation of high field strengths.
• the paper of the bobbin is then deprived of water in an energy and time-consuming process.
• an impregnation of the wound body is performed in a Imoniagnierflüs ⁇ stechnik, such as oil or casting resin.
• a crepe paper is used to ensure suffi ⁇ accordingly safer impregnation with the viscous casting resin usually.
• Winding machines for high-voltage feedthroughs generally have two mutually opposite in a longitudinal direction chuck, of which at least one can be driven for rotation. In this chuck of the usually made of solid copper high voltage ⁇ conductor is clamped.
• the massive high-voltage conductor has a strength which allows a support-free winding of the well ⁇ th winding body.
• the winding process causes the winding to bend due to its own weight and thus to a reduced good control of the electric field during operation of the high-voltage bushing.
• the object of the invention is therefore to provide a winding machine of the type mentioned, with the large feedthroughs can be made for very high voltages without it comes to sagging of the coil or ei ⁇ ner mechanical deformation of the soft paper.
• the invention solves this problem in that at least ei ⁇ nen tape support plant is provided with tape guide elements, which are adapted to apply a binding tape to the outer contour of the roll, the binding tape is kept at least partially below the coil at least in sections, so that the binding tape complementary in shape the winding creates.
• the tape guide elements are designed so that no mechanical guide or pressure elements are arranged directly below the winding axis.
• the binding tape is he ⁇ inventively formed easily deformable and extends in the longitudinal direction area having a certain width In parallel to the winding axis, so that it comes or when growing ⁇ Denden winding for applying the binding tape to the outer contour of the coil constantly gentle application can be maintained.
• the pressing force is, as already stated, taken up solely by the flexible and conformable edging strip, which deforms immediately and forms ⁇ complementary to the winding. Too high pressure forces who ⁇ avoided in this way. The paper layers of the roll are thus gently supported and a deformation of the paper layers avoided, at the same time a bending of the roll is prevented even at high length and high weight.
• the binding tape is closed keptbil ⁇ det and surrounds the tape guide elements, wherein the band guide elements allow a driven by the winding circulation of the binding tape.
• the winding drives in the winding process the closed, around the tape ⁇ management elements encircling binding tape, which then also rotates counter to the direction of rotation of the roll to the tape guide elements.
• the tape guide elements are mounted so that the circulation of the binding tape is not prevented ver ⁇ .
• pivot bearing or the like are known as such known pivot bearing or the like.
• At least two have the tape guides extending parallel to the winding Lungs ⁇ axis extending guide rollers, on which the edging ⁇ tape is applied, wherein the guide rollers with respect to the interturn axis are arranged so that a projection of the Wi ⁇ ckelachse to a plane, which extends through the axes of rotation of the guide rollers, runs parallel between the axes of rotation of the guide rollers.
• the projection of the winding axis it is expedient for the projection of the winding axis to extend parallel and centrally between the axes of rotation of the guide rollers. In this way it is ensured that the binding tape is kept free below the winding axis of the guide rollers.
• the guide elements on three Füh ⁇ tion rollers which are arranged in a side view in the longitudinal direction V-shaped to each other.
• the exposed side of the Vs however, the Wick ⁇ ment axis and thus facing the winding.
• the exposed side is delimited by two guide rollers which provide ⁇ case, extend parallel to the winding axis, but laterally offset in a plan view from above, that is right and left of Wick ⁇ lung axis.
• the middle guide roller runs exactly below the winding axis and parallel to this.
• the binding tape On the exposed side of the Vs, on which the binding tape is kept free, the winding which is becoming increasingly larger during the production process is gently absorbed.
• the binding tape is elastic and is held under slight tension by the guide elements.
• the case occurring voltage is chosen so that on the one hand the greatest possible support action, on the other hand, ⁇ but a particularly gentle to the sensi- tive paper layers is provided.
• the binding tape is an elastomer, such as a natural or synthetic rubber or the like.
• positioning means are provided for changing the distance of the binding tape to the winding axis.
• the position adjusting means to a control unit which is connected to force sensors that detect the pressing force of the barrel ⁇ A ribbon to the outer contour of the package.
• the control unit is connected, for example with speed ⁇ encoders, which detect the number of revolutions of the coil during the manufacturing process.
• the control unit has a logic unit which processes the signals transmitted by the Drehbaumge ⁇ bern and the force sensors and the tape carrier so works out ⁇ clearly moves to its distance to the winding axis by means of the position adjusting means that the pressing force of the binding tape is kept free is kept constant to the outer contour of the coil ⁇ substantially.
• the tape has a width in the longitudinal Rich ⁇ tung from 500 mm to 1000 mm.
• At least three band carrier plants are provided, which have a distance of 1 m from one another.
• the belt carrier plants are advantageously arranged in alignment in the longitudinal direction one behind the other.
• the holding means can basically be configured as desired. It is essential in the context of the invention that they allow the holding of the high-voltage conductor as a winding core while simultaneously initiating a rotational movement in the winding core.
• the holding means are designed as two lathe feeders opposite one another in the longitudinal direction.
• the lathe chucks captivate the high-voltage conductor, one of the lathe chucks being a lathe-driven lathe chuck.
• the non-driven lathe chuck is rotatably mounted.
• the winding layers comprise creped paper and an electrically conductive control insert.
• the wound in the winding electrically conductive control pad ensures a controlled degradation of an electrical field occurring at high voltages.
• the winding is impregnated after completion of the winding process with resin, so that a resin-impregnated passage is formed.
• FIG. 2 shows an enlarged view of a strip carrier system of a winding machine according to FIG. 1.
• FIG. 1 shows an exemplary embodiment of the winding machine 1 according to the invention.
• the winding machine 1 shown there has two rotary chucks 2 and 3 lying opposite one another in a longitudinal direction, between which a high-voltage conductor 4 extends in the longitudinal direction.
• the made of a metal such as aluminum or copper, high-voltage conductor is used as a winding core on the winding layers 5 to form a bobbin or winding 6 are wound.
• a rotary motion is introduced into the lathe chuck.
• the winding layers 5 comprise a sheet of crepe paper ⁇ 7 and between the crepe paper 7 is not visible in Figure 1 electrically conductive insert, which are wound together with the crepe paper 7 as a winding layer 5 to the high voltage conductor.
• winding 6 for feeding the winding layers 5 are used means for supplying winding layers, which is referred to here in general by the reference numeral 9.
• the design of these means for supplying winding layers 9 can in principle be performed arbitrarily within the scope of the invention. However, such agents are known to those skilled in the art, so that a more detailed representation can be omitted here.
• the winding system 1 shown in Figure 1 is used to herstel ⁇ len of bushings for high voltages. To comply with the resulting from the height of the voltage strokes of the winding 6 must be dimensioned correspondingly long. Thus, the winding 6 according to FIG. 1 has a length of 12 m.
• the electric field must be shut down.
• a winding with a thickness adapted to the high stresses is required.
• the large length and thickness have a winding 6 with a large weight result. So 6 weighs the finished reel before its impregnation with ei ⁇ nem suitable impregnating several tons.
• belt carriers 10 are provided below the roll 6, which are arranged one behind the other in the longitudinal direction and parallel to an imaginary winding axis extending centrally through the winding core.
• the winding ⁇ axis is thus defined by the opposing holding means 2, 3. In the embodiment shown, the winding axis runs centrally through the lathe chuck 2, 3.
• FIG. 2 shows one of the band mechanisms 10 in more detail. It is he ⁇ identifiable that each band support mechanism 10 has an elastic binding tape 11, for example made of a rubber or a non-elastomeric elastomer, as well as tape guide elements 12 for guiding the binding tape 11.
• the tape guide elements 12 are realized by three guide rollers 13, 14, 15, which are arranged in a side view in the longitudinal direction V-shaped to each other. In this case, the V is averted with its tip from the axis of rotation or the winding. In other words, it extends ⁇ the guide roller 15 parallel and exactly below the coil 6 and the axis of rotation, the guide rollers 12 and 13 in a plan view laterally offset to the left or right with respect to the winding axis are arranged.
• All guide rollers are aligned parallel to the winding axis.
• the over all guide rollers 13, 14, 15 continuously encircling binding band 11 is thus un ⁇ below the winding axis or the coil 6 is kept free, so that it complies form complementary to the outer contour of the coil 6 without causing excessive pressure on the sensitive creped paper 7 of the coil 6 exercise.
• the tape carrier plant 10 with its edging ⁇ band 11 provides a support effect, so that a bending of the coil 6 is avoided due to its high weight.
• the binding tape 11 is, as already mentioned, made of egg ⁇ nem elastomer such as a rubber having a sufficiently large frictional effect with respect to the Wicklungsla- gene 5 so that an initiated by the spin chuck in the winding 6 rotational movement, for example, counterclockwise, causes a rotation of the binding tape 11 about the guide rollers 13, 14 and 15 in a clockwise direction.
• the belt carrier 10 further comprises a Stabilticiansrol ⁇ le 16 which is rotatably mounted in a stabilizing bracket 17.
• the stabilizer mount 17 includes a
• the holding frame 19 of the belt carrier 10 is fixedly coupled to a support frame 20 of the winding machine 1, with which the winding machine 1 is parked on the ground.
• the stabilizer ⁇ lleitersrolle 16 serves only to hold and stabilization ⁇ ren the coil 6 during the winding process. By removing ⁇ pull the rack 18 out of the holding frame 19 is the position of the stabilizing roller 16 with respect to the variable binding tape 11 and therefore of the reel. 6
• the belt carrier 10 also has Lüstell ⁇ medium 21, which is used to change the distance of the entire band Shinwerkes 10 and thus the binding tape 11 to the winding ⁇ axis and the winding 6 are set up.
• a figurative not erkennba ⁇ re in Figure 2 hydraulic is used to change the distance.
• the positioning means 21 of each belt carrier 10 are connected via a cardan shaft 22 mitein ⁇ other.
• the positioning means 21 have a figuratively also not shown control unit, which is ver ⁇ bound with force sensors, which detect the pressing force of the coil 6 to the one ⁇ holband 11.
• the control unit is connected to a Drehiereinkrementgeber which detects the number of revolutions of the coil 6 in the winding process and transmits this data to the control unit. Based on the number of revolutions during a Wickelprozes ⁇ ses moves the control unit, the entire belt support 10 by means of the hydraulic system of the positioning means 21 continuously, so as to set a substantially equal distance to the ever-increasing outer contour of the coil 6.
• the fine tuning of the distance of the tape carrier work 10 to the outer contour of the reel 6 is effected by a further Re ⁇ gelungsschleife which compares the respective actual value of the contact pressure ⁇ force, which is determined by the power sensors with a predetermined desired value, wherein a difference Zvi ⁇ rule actual and setpoint formed and the resulting ⁇ de control difference is transmitted to a controller.
• the controller moves the belt carrier 10 with the help of hydraulics so that the control difference is as small as possible. In this way, the pressing force can be adjusted and kept constant who ⁇ .

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• Winding Of Webs (AREA)
• Insulating Of Coils (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

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ID=43530865

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Citations (4)

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• 2009
  • 2009-12-08 DE DE102009057622.3A patent/DE102009057622B4/de active Active
• 2010
  • 2010-11-19 CN CN201080055448.3A patent/CN102648141B/zh active Active
  • 2010-11-19 RU RU2012128451/13A patent/RU2508241C1/ru active
  • 2010-11-19 WO PCT/EP2010/067807 patent/WO2011069807A1/de active Application Filing

Patent Citations (4)

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