EP0263787B1 - Reel for winding material, especially insulated cables - Google Patents

Reel for winding material, especially insulated cables Download PDF

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Publication number
EP0263787B1
EP0263787B1 EP19870810539 EP87810539A EP0263787B1 EP 0263787 B1 EP0263787 B1 EP 0263787B1 EP 19870810539 EP19870810539 EP 19870810539 EP 87810539 A EP87810539 A EP 87810539A EP 0263787 B1 EP0263787 B1 EP 0263787B1
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EP
European Patent Office
Prior art keywords
spool according
core
spokes
segments
spoke
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.)
Expired - Lifetime
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EP19870810539
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German (de)
French (fr)
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EP0263787A1 (en
Inventor
Herbert Isler
Karl Günter Schmidt
Thomas Züst
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SWIL-TECHNIK AG
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SWIL-TECHNIK AG
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Publication of EP0263787A1 publication Critical patent/EP0263787A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/04—Kinds or types
    • B65H75/08—Kinds or types of circular or polygonal cross-section
    • B65H75/14—Kinds or types of circular or polygonal cross-section with two end flanges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/50—Storage means for webs, tapes, or filamentary material
    • B65H2701/51—Cores or reels characterised by the material
    • B65H2701/515—Cores or reels characterised by the material assembled from parts made of different materials

Definitions

  • Energy cables are wound on spools in the manufacturing plant and then shipped on spools.
  • Conventional coils of this type are welded steel structures with two wheel tires, which are connected to inner rings, for example, by spokes.
  • the inner rings in turn carry a drum on which the cable is wound and are connected to two hub spokes with two or three central spokes.
  • the hub flanges have a central hole with which they are mounted on a shaft or on conical pins. In order to absorb the axial forces in the latter case, the hub flanges are braced diagonally in the central spoke planes with the inner rings in the known coils.
  • the zinc oxidizes relatively quickly under these conditions and becomes powdery, so that the surface of the drum and the side walls becomes rough. If the cable slips on these coil parts, the thin outer insulation layer can therefore be damaged, in particular in the not yet cross-linked, relatively soft state. As a result, the innermost winding of the cable is lost, which leads to high losses.
  • a collapsible coil is known from DE-A-2 439 488, from which claim 1 is delimited.
  • This coil has a wheel tire on both sides.
  • Each wheel tire is directly connected to a hub tube via spokes made of L-profiles.
  • a tire-shaped collar is welded onto the spokes, concentric with the hub tube.
  • the inner flange surfaces of the coil are each formed by an annular plate between the collar and the wheel tire.
  • a core consisting of several core segments is inserted between the two sheets. The core segments rest on the two collars.
  • the side parts of the coil are clamped together with several anchor rods, which extend between two opposing spokes.
  • This coil is removable and has a smaller transport volume in the disassembled state than the rigidly welded constructions described above, but also suffers from the other defects described.
  • the assembly of the coil is relatively complex and the coil is not very rigid.
  • the present invention has for its object to form a collapsible coil so that it is easy to assemble and has a high torsional rigidity in the assembled state. This object is achieved by the characterizing features of claim 1.
  • the torques are transmitted via the form-fitting centering between spokes and end ribs, which results in the high torsional rigidity. Because each end rib is bolted to at least two spokes, the bending stresses acting in the circumferential direction on the core segments are optimally absorbed.
  • FIG. 1 for the sake of a better overview, only part of half of an axial section through the coil is shown.
  • the coil has a wheel tire 1 with a U-shaped cross section on both sides. 12 radial spokes 2 made of C-profiles are welded evenly to the tire 1. Inside, all spokes 2 are welded to two hub flanges 3, which have a deep-drawn attachment 4 for receiving a bearing journal. Each spoke 2 is connected to a cylindrical drum 6 by a screw connection 5.
  • the drum 6 consists of six sixth circle segments 7. The segments 7 have on their two longitudinal edges parallel to the axial direction a U-shaped, stiffening 8 (FIG. 4) and ribs 9 welded to their two end edges.
  • FIGS. 3 and 4 The screw connection 5 between the spoke 2 and the rib 9 is shown in more detail in FIGS. 3 and 4: an eye 14 is welded onto the spoke 2. An arm 16 with lugs 17 is snapped into the bore 15 of the eye 14 at the free ends of two resilient legs 18. For this purpose, the edge of the bore 15 facing away from the spoke 2 is only slightly thicker than the distance between the lugs 17. The arm 16 has a square hole 19 at its opposite end. A holder 20 made of thin sheet metal is snapped into the hole 19. which encloses a square nut 21. A screw 24 is screwed into the nut 21 through through bores 22, 23 in the spoke 2 and the rib 9. Spoke 2 and rib 9 are centered adjacent to the bores 22, 23 with a pin 25 stuck in the spoke 2.
  • This design of the screw connection 5 enables simple assembly. By centering with the pin 25, an exact positioning of the segment 7 is achieved. Now the nut 21 is pivoted in by means of the arm 16 and is thus automatically aligned with the bores 22, 23, so that the screw 24 can be screwed in comfortably. When the screw 24 is tightened, the arm 16 also acts as a counter wrench.
  • segments 29 of a side wall 30 are fastened to the spokes 2 by means of screws 32.
  • the segments 29 can instead or additionally be connected to the wheel tire 1 and / or the core 6 and have stiffening ribs 31 in the radial and circumferential directions and consist of fiber-reinforced plastic or are plastic-coated.
  • each core segment 7 is individually covered with a thermoplastic plastic film 36.
  • the plastic film 36 has along its two longitudinal edges a seam 38 formed by a weld seam 37, in which a rod 39 is inserted, for example made of aluminum or GRP.
  • the rod 39 is braced with a series of springs 40 against a bar 41 welded onto the segment 7 with a series of bores 42.
  • the winding material is optimally protected by the plastic film 36 and the plastic wall 30. If the wall 30 or the film 36 is damaged, these parts can easily be replaced.
  • the coil has a central axle tube 47, which is positioned on the inner hub flange 4 by means of two pins 48.
  • the axle tube 47 can additionally have an end flange on both sides and can be screwed to the hub flanges 4. With this axle tube 47, axial forces acting on one side, for example when the coil is upright, are distributed to both spoke rings, so that the coil can also be used as a machine coil, for example when stranding cables.
  • the central spoke rim 49 shown in FIG. 1 can also be installed.
  • the axle tube 47 has a central flange 50 in the center.
  • Shorter spokes 52 are screwed to the central flange 50.
  • Each spoke 52 is connected to a further screw connection 5 according to FIGS. 3 and 4 with a central rib 53.
  • the spoke ring 49 supports the drum 6 in the middle and transmits it a part of the axial load on the drum 6, so that the spool can be used with this addition as a machine spool even with heavier winding material. If it is only used as a transport spool, the axle tube 47 and the spoke ring 49 can be omitted and the tare weight of the spool can thus be reduced.
  • the described design of the coil makes it easy to assemble and repair.
  • the power transmission from the journal to the drum is good due to the many spokes, so that the spokes and the end ribs of the drum can be built relatively easily.
  • the coil takes up very little space when disassembled and can therefore be inexpensively shipped and stored for first use.

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  • Storage Of Web-Like Or Filamentary Materials (AREA)

Description

Energiekabel werden im Herstellerwerk auf Spulen aufgewickelt und schliesslich auf Spulen versandt. Herkömmliche Spulen dieser Art sind verschweisste Stahlkonstruktionen mit zwei Radreifen, die zum Beispiel über Speichen mit inneren Ringen verbunden sind. Die inneren Ringe ihrerseits tragen eine Trommel, auf welche das Kabel aufgewickelt wird, und sind über zwei oder drei Zentralspeichen mit je einem Nabenflansch verbunden. Die Nabenflansche haben eine zentrale Bohrung, mit welcher sie auf einer Welle oder auf konischen Zapfen gelagert werden. Um die axialen Kräfte im letztgenannten Fall aufzunehmen, sind bei den bekannten Spulen die Nabenflansche in den Zentralspeichenebenen diagonal mit den inneren Ringen verstrebt.Energy cables are wound on spools in the manufacturing plant and then shipped on spools. Conventional coils of this type are welded steel structures with two wheel tires, which are connected to inner rings, for example, by spokes. The inner rings in turn carry a drum on which the cable is wound and are connected to two hub spokes with two or three central spokes. The hub flanges have a central hole with which they are mounted on a shaft or on conical pins. In order to absorb the axial forces in the latter case, the hub flanges are braced diagonally in the central spoke planes with the inner rings in the known coils.

Diese bekannten Spulen werden üblicherweise verzinkt. Sie sind robust und haben sich bewährt. Allerdings haben sie bei der Erstlieferung vom Herstellerwerk zum Kabelhersteller ein grosses Transportvolumen, was den Transport verteuert. Auch sind sie statisch nicht optimal dimensioniert.These known coils are usually galvanized. They are robust and have proven themselves. However, they have a large transport volume for the initial delivery from the manufacturer to the cable manufacturer, which means that Transport more expensive. They are also not optimally dimensioned statically.

Energiekabel haben in neuerer Zeit oft eine Abschirmung, um die Verluste zu vermindern. Die auf die Abschirmung in der letzten Operation der Kabelherstellung aufgebrachte Isolation braucht nur dünn zu sein. Solch dünne Isolationsschichten werden jedoch bei den bekannten Spulen häufig durch den Schlupf beschädigt, den das Kabel bei der Abkühlung von der Herstelltemperatur auf Raumtemperatur unvermeidlich auf der Trommel erleidet. Auch bei sorgfältiger Herstellung sind nämlich die Trommeln und die Seitenwände selten ideal glatt, weil kleine Schweissperlen kaum zu sehen sind und sich beim Verzinken, das heisst beim Herausziehen aus dem Zinkbad, unvermeidlich Schlackenteile von der Oberfläche des Zinkbades ablagern. Ausserdem ist der Zinkschicht die abschliessende Wärmebehandlung des Kabels zum Vernetzen der äusseren Isolationsschicht bei etwa 85°C und hoher Luftfeuchtigkeit nicht bekömmlich. Das Zink oxidiert unter diesen Bedingungen relativ rasch und wird pulverig, so dass die Oberfläche der Trommel und der Seitenwände rauh wird. Bei Schlupf des Kabels auf diesen Spulenteilen kann daher die dünne äussere Isolationsschicht, insbesondere im noch nicht vernetzten, relativ weichen Zustand, beschädigt werden. Dadurch geht die innerste Wicklung des Kabels verloren, was zu hohen Verlusten führt.In recent times, energy cables have often been shielded in order to reduce losses. The insulation applied to the shield in the last cable manufacturing operation need only be thin. In the known coils, however, such thin insulation layers are often damaged by the slippage which the cable inevitably suffers on the drum when it cools from the manufacturing temperature to room temperature. Even with careful manufacture, the drums and the side walls are rarely ideally smooth because small welding beads are hardly visible and when in galvanizing, i.e. when they are pulled out of the zinc bath, slag parts are inevitably deposited on the surface of the zinc bath. In addition, the zinc layer is not digestible by the final heat treatment of the cable for crosslinking the outer insulation layer at about 85 ° C and high humidity. The zinc oxidizes relatively quickly under these conditions and becomes powdery, so that the surface of the drum and the side walls becomes rough. If the cable slips on these coil parts, the thin outer insulation layer can therefore be damaged, in particular in the not yet cross-linked, relatively soft state. As a result, the innermost winding of the cable is lost, which leads to high losses.

Eine zerlegbare Spule ist aus der DE-A-2 439 488 bekannt, gegenüber welcher der Anspruch 1 abgegrenzt ist. Diese Spule hat auf beiden Seitenteilen einen Radreifen. Jeder Radreifen ist über Speichen aus L-Profilen direkt mit einem Nabenrohr verbunden. Konzentrisch zum Nabenrohr ist ein reifenförmiger Kragen an die Speichen angeschweisst. Die inneren Flanschflächen der Spule werden durch je ein ringförmiges Blech zwischen dem Kragen und dem Radreifen gebildet. Zwischen den beiden Blechen ist ein Kern eingesetzt, der aus mehreren Kernsegmenten besteht. Die Kernsegmente ruhen auf den beiden Kragen. Mit mehreren Ankerstangen, die sich zwischen je zwei gegenüberliegenden Speichen erstrecken, werden die Seitenteile der Spule zusammengespannt.A collapsible coil is known from DE-A-2 439 488, from which claim 1 is delimited. This coil has a wheel tire on both sides. Each wheel tire is directly connected to a hub tube via spokes made of L-profiles. A tire-shaped collar is welded onto the spokes, concentric with the hub tube. The inner flange surfaces of the coil are each formed by an annular plate between the collar and the wheel tire. A core consisting of several core segments is inserted between the two sheets. The core segments rest on the two collars. The side parts of the coil are clamped together with several anchor rods, which extend between two opposing spokes.

Diese Spule ist demontierbar und hat im demontierten Zustand ein kleineres Transportvolumen als die oben beschriebenen starr verschweissten Konstruktionen, leidet aber auch an den übrigen beschriebenen Mängeln. Ausserdem ist der Zusammenbau der Spule relativ aufwendig, und die Spule ist wenig verwindungssteif.This coil is removable and has a smaller transport volume in the disassembled state than the rigidly welded constructions described above, but also suffers from the other defects described. In addition, the assembly of the coil is relatively complex and the coil is not very rigid.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine zerlegbare Spule derart auszubilden, dass sie einfach zu montieren ist und im montierten Zustand eine hohe Verwindungssteifigkeit besitzt. Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.The present invention has for its object to form a collapsible coil so that it is easy to assemble and has a high torsional rigidity in the assembled state. This object is achieved by the characterizing features of claim 1.

Durch die mit mindestens zwei Speichen verschraubten Endrippen der Kernsegmente und die Zentierung dieser Endrippen an den Speichen wird ausser der einfachen und raschen Montage eine optimale Kraftübertragung zwischen Speichen und Kernsegmenten erreicht. Dadurch kann eine hohe Verwindungssteifigkeit gewährleistet werden. Dies ist deshalb wichtig, weil Spulen beim Wickeln des Kabels nur auf dem einen Seitenteil angetrieben werden. Die Kabelspannung beim Wickeln führt daher zu einem erheblichen Drehmoment zwischen dem angetriebenen Seitenteil und dem Kern, welches bei der Lösung gemäss DE-A-2 439 488 bloss durch Reibung der Kernsegmente am ringförmigen Blech der Seitenteile übertragen wird. Das übertragbare Moment ist daher von der Vorspannung der Ankerstäbe, also von der Sorgfalt der Montage abhängig. Bei der erfindungsgemässen Lösung werden demgegenüber die Drehmomente über die formschlüssige Zentrierung zwischen Speichen und Endrippen übertragen, was die hohe Torsionssteifigkeit ergibt. Weil jede Endrippe mit mindestens zwei Speichen verschraubt ist, werden die beim Aufwickeln in Umfangsrichtung wirkenden Biegespannungen auf die Kernsegmente optimal aufgenommen.Due to the end ribs of the core segments screwed with at least two spokes and the centering of these end ribs on the spokes, besides the simple and quick assembly, an optimal power transmission between the spokes and core segments is achieved. This ensures high torsional rigidity. This is important because coils are only driven on one side when winding the cable. The cable tension during winding therefore leads to a considerable torque between the driven side part and the core, which in the solution according to DE-A-2 439 488 is transmitted only by friction of the core segments on the annular sheet metal of the side parts. The transmittable moment is therefore dependent on the prestressing of the anchor rods, i.e. on the care taken during assembly. In contrast, in the solution according to the invention the torques are transmitted via the form-fitting centering between spokes and end ribs, which results in the high torsional rigidity. Because each end rib is bolted to at least two spokes, the bending stresses acting in the circumferential direction on the core segments are optimally absorbed.

Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung erläutert. Darin zeigt:

  • Fig. 1 einen Axialschnitt durch eine Kabelspule,
  • Fig. 2 eine Stirnansicht der Spule,
  • Fig. 3 und 4 ein Detail einer Schraubenverbindung, und
  • Fig.5 einen Teilschnitt durch ein Trommelsegment.
An exemplary embodiment of the invention is explained below with reference to the drawing. It shows:
  • 1 is an axial section through a cable spool,
  • 2 is an end view of the coil,
  • 3 and 4 a detail of a screw connection, and
  • 5 shows a partial section through a drum segment.

In Fig. 1 ist der besseren Uebersicht wegen nur ein Teil der Hälfte eines Axialschnittes durch die Spule dargestellt. Die Spule hat beidseits einen Radreifen 1 mit U-förmigem Querschnitt. Am Reifen 1 sind gleichmässig verteilt 12 radiale Speichen 2 aus C-Profilen angeschweisst. Innen sind sämtliche Speichen 2 mit zwei Nabenflanschen 3 verschweisst, die zentrisch einen tiefgezogenen Ansatz 4 zur Aufnahme eines Lagerzapfens haben. Ueber je eine Schraubverbindung 5 ist jede Speiche 2 mit einer zylindrischen Trommel 6 verbunden. Die Trommel 6 besteht aus sechs Sechstelkreissegmenten 7. Die Segmente 7 haben an ihren beiden Längsrändern parallel zur Achsrichtung eine U-förmig abgekantete, aneinander anliegende Versteifung 8 (Fig. 4) und an ihren beiden Stirnrändern angeschweisste Rippen 9.In FIG. 1, for the sake of a better overview, only part of half of an axial section through the coil is shown. The coil has a wheel tire 1 with a U-shaped cross section on both sides. 12 radial spokes 2 made of C-profiles are welded evenly to the tire 1. Inside, all spokes 2 are welded to two hub flanges 3, which have a deep-drawn attachment 4 for receiving a bearing journal. Each spoke 2 is connected to a cylindrical drum 6 by a screw connection 5. The drum 6 consists of six sixth circle segments 7. The segments 7 have on their two longitudinal edges parallel to the axial direction a U-shaped, stiffening 8 (FIG. 4) and ribs 9 welded to their two end edges.

Die Schraubverbindung 5 zwischen Speiche 2 und Rippe 9 ist in Fig. 3 und 4 detailierter dargestellt: An der Speiche 2 ist ein Auge 14 angeschweisst. In die Bohrung 15 des Auges 14 ist ein Arm 16 mit Nasen 17 an den freien Enden zweier federnder Schenkel 18 eingeschnappt. Dazu ist der der Speiche 2 abgewandte Rand der Bohrung 15 nur geringfügig dicker als der Abstand zwischen den Nasen 17. Der Arm 16 hat an seinem gegenüberliegenden Ende ein Vierkantloch 19. Im Loch 19 ist ein Halter 20 aus dünnem Blech eingeschnappt, der eine Vierkantmutter 21 umschliesst. Durch Durchgangsbohrungen 22, 23 in der Speiche 2 und der Rippe 9 ist eine Schraube 24 in die Mutter 21 eingeschraubt. Benachbart den Bohrungen 22, 23 sind Speiche 2 und Rippe 9 mit einem in der Speiche 2 festsitzenden Stift 25 zentriert. Diese Ausbildung der Schraubverbindung 5 ermöglicht eine einfache Montage. Durch die Zentrierung mit dem Stift 25 wird eine exakte Positionierung des Segmentes 7 erreicht. Nun wird die Mutter 21 mittels des Armes 16 eingeschwenkt und fluchtet damit automatisch mit den Bohrungen 22, 23, so dass die Schraube 24 bequem eingeschraubt werden kann. Beim Anziehen der Schraube 24 wirkt der Arm 16 zudem als Gegenhalteschlüssel.The screw connection 5 between the spoke 2 and the rib 9 is shown in more detail in FIGS. 3 and 4: an eye 14 is welded onto the spoke 2. An arm 16 with lugs 17 is snapped into the bore 15 of the eye 14 at the free ends of two resilient legs 18. For this purpose, the edge of the bore 15 facing away from the spoke 2 is only slightly thicker than the distance between the lugs 17. The arm 16 has a square hole 19 at its opposite end. A holder 20 made of thin sheet metal is snapped into the hole 19. which encloses a square nut 21. A screw 24 is screwed into the nut 21 through through bores 22, 23 in the spoke 2 and the rib 9. Spoke 2 and rib 9 are centered adjacent to the bores 22, 23 with a pin 25 stuck in the spoke 2. This design of the screw connection 5 enables simple assembly. By centering with the pin 25, an exact positioning of the segment 7 is achieved. Now the nut 21 is pivoted in by means of the arm 16 and is thus automatically aligned with the bores 22, 23, so that the screw 24 can be screwed in comfortably. When the screw 24 is tightened, the arm 16 also acts as a counter wrench.

Zwischen der Trommel 6 und der Peripherie des Radreifens 1 sind auf den Speichen 2 sechs Segmente 29 einer Seitenwand 30 mittels Schrauben 32 befestigt. Die Segmente 29 können stattdessen oder zusätzlich mit dem Radreifen 1 und/oder dem Kern 6 verbunden sein und haben Versteifungsrippen 31 in radialer und in Umfangsrichtung und bestehen aus faserarmiertem Kunststoff oder sind kunststoffbeschichtet.Between the drum 6 and the periphery of the wheel tire 1, six segments 29 of a side wall 30 are fastened to the spokes 2 by means of screws 32. The segments 29 can instead or additionally be connected to the wheel tire 1 and / or the core 6 and have stiffening ribs 31 in the radial and circumferential directions and consist of fiber-reinforced plastic or are plastic-coated.

Jedes Kernsegment 7 ist einzeln mit einer thermoplastischen Kunststoffolie 36 bespannt. Wie in Fig. 5 dargestellt, hat die Kunststoffolie 36 längs ihren beiden Längsrändern einen durch eine Schweissnaht 37 gebildeten Saum 38, in den ein Stab 39 zum Beispiel aus Aluminium oder GFK eingelegt ist.Each core segment 7 is individually covered with a thermoplastic plastic film 36. As shown in Fig. 5, the plastic film 36 has along its two longitudinal edges a seam 38 formed by a weld seam 37, in which a rod 39 is inserted, for example made of aluminum or GRP.

Der Stab 39 ist mit einer Reihe von Federn 40 gegen eine auf das Segment 7 aufgeschweisste Leiste 41 mit einer Serie von Bohrungen 42 abgespannt.The rod 39 is braced with a series of springs 40 against a bar 41 welded onto the segment 7 with a series of bores 42.

Durch die Kunststoffolie 36 und die Kunststoffwand 30 ist das Wickelgut optimal geschützt. Bei Beschädigung der Wand 30 oder der Folie 36 können diese Teile leicht ausgewechselt werden.The winding material is optimally protected by the plastic film 36 and the plastic wall 30. If the wall 30 or the film 36 is damaged, these parts can easily be replaced.

Gelegentlich werden Spulen beim Ab- oder Aufwickeln auf konischen Zapfen gelagert, die mit einer relativ grossen Kraft gegeneinander pressen. Um diese Kräfte aufnehmen zu können, hat die Spule ein zentrales Achsrohr 47, das mittels zweier Stifte 48 am inneren Nabenflansch 4 positioniert ist. Das Achsrohr 47 kann zusätzlich beidseits einen Endflansch haben und mit den Nabenflanschen 4 verschraubt sein. Mit diesem Achsrohr 47 werden einseitig wirkende Axialkräfte zum Beispiel bei hochkant stehender Spule auf beide Speichenkränze verteilt, so dass die Spule auch als Maschinenspule zum Beispiel beim Verseilen von Kabeln eingesetzt werden kann. Für diesen Anwendungsfall kann auch zusätzlich der in Fig. 1 dargestellte zentrale Speichenkranz 49 montiert werden. Das Achsrohr 47 hat mittig einen Mittelflansch 50. Mit dem Mittelflansch 50 sind kürzere Speichen 52 verschraubt. Jede Speiche 52 ist mit einer weiteren Schraubverbindung 5 gemäss Fig. 3 und 4 mit einer Mittelrippe 53 verbunden. Der Speichenkranz 49 stützt die Trommel 6 mittig ab und überträgt einen Teil der Axiallast auf die Trommel 6, so dass die Spule mit dieser Ergänzung auch bei schwererem Wickelgut als Maschinenspule verwendbar ist. Gelangt sie nur als Transportspule zum Einsatz, so kann das Achsrohr 47 und der Speichenkranz 49 weggelassen und somit das Taragewicht der Spule reduziert werden.Occasionally, spools are stored on conical pins during unwinding or winding, which press against one another with a relatively large force. In order to be able to absorb these forces, the coil has a central axle tube 47, which is positioned on the inner hub flange 4 by means of two pins 48. The axle tube 47 can additionally have an end flange on both sides and can be screwed to the hub flanges 4. With this axle tube 47, axial forces acting on one side, for example when the coil is upright, are distributed to both spoke rings, so that the coil can also be used as a machine coil, for example when stranding cables. For this application, the central spoke rim 49 shown in FIG. 1 can also be installed. The axle tube 47 has a central flange 50 in the center. Shorter spokes 52 are screwed to the central flange 50. Each spoke 52 is connected to a further screw connection 5 according to FIGS. 3 and 4 with a central rib 53. The spoke ring 49 supports the drum 6 in the middle and transmits it a part of the axial load on the drum 6, so that the spool can be used with this addition as a machine spool even with heavier winding material. If it is only used as a transport spool, the axle tube 47 and the spoke ring 49 can be omitted and the tare weight of the spool can thus be reduced.

Durch die beschriebene Ausbildung der Spule wird eine leichte Montier- und Reparierbarkeit erreicht. Die Kraftübertragung von den Lagerzapfen auf die Trommel ist durch die vielen Speichen gut, so dass die Speichen und die Endrippen der Trommel relativ leicht gebaut werden können. Die Spule beansprucht im demontierten Zustand sehr wenig Raum und kann daher zur Erstverwendung kostengünstig versandt und gelagert werden.The described design of the coil makes it easy to assemble and repair. The power transmission from the journal to the drum is good due to the many spokes, so that the spokes and the end ribs of the drum can be built relatively easily. The coil takes up very little space when disassembled and can therefore be inexpensively shipped and stored for first use.

Claims (14)

1. Spool for a wound material, comprising on both sides a tyre (1), a plurality of spokes (2) rigidly connected to the tyre (1), a hub flange (3) directly and rigidly connected to each spoke (2), a cylindrical core (6) consisting of a plurality of core segments (7) and, on both sides, in each case one side wall (30) between the core (6) and the tyre (1), characterized in that each core segment (7) has on each of its end faces a radial end rib (9) which is screwed to at least two spokes (2) by means of bolts (24) and near to the bolts (24) is centred on the spokes (2).
2. Spool according to Claim 1, characterized in that the two longitudinal edges of each core segment (7) are bent to form a U-shaped reinforcement (8).
3. Spool according to Claim 2, characterized in that the reinforcements (8) of adjacent core segments (7) rest against one another.
4. Spool according to Claim 2 or 3, characterized in that the end ribs (9) are welded to the cylindrical part of the core segments (7) and to the reinforcements (8).
5. Spool according to one of Claims 1 to 4, characterized in that, near to each bolt (24), each end rib (9) is centred on the associated spoke (2) using a pin (25).
6. Spool according to one of Claims 1 to 5, characterized in that the side wall (30) consists of segments (29) which are releasably connected to the spokes (2), the core (6) and/or the tyre (1).
7. Spool according to Claim 6, characterized in that the side wall segments (29) consist of plastic or are plastic-coated.
8. Spool according to one of Claims 1 to 7, characterized in that the bolt connection (5) between the end ribs (9) and the spokes (2) in each case contains a nut (21) which is connected in a manner fixed in terms of rotation to an arm (16) which is secured swivellably on the associated spoke (2), and in that the spoke (2) has a through bore (22) for the bolt (24), which through bore is coaxial to the nut (21) in the radially outward-directed swivelling position of the arm (16).
9. Spool according to one of Claims 1 to 8, characterized in that the core (16) is sheathed with a plastic sheet (36).
10. Spool according to Claim 9, characterized in that each core segment (7) is individually covered with the sheet (36).
11. Spool according to Claim 10, characterized in that a rod (39), which is braced towards the inner surface of the core segment (7) using springs (40), is placed in a hem (38) at the two longitudinal edges of the film (36).
12. Spool according to one of Claims 1 to 11, characterized in that an axle tube (47), which is centred on both hub flanges (3) and is, for example, bolted to them, is arranged between the two hub flanges (3).
13. Spool according to Claim 12, characterized in that a central flange (50), which is bolted to a central rib (53) of the core segments (7) via further spokes (52), is arranged on the axle tube (47), between the two hub flanges (3).
14. Spool according to one of Claims 1 to 13, characterized in that the spokes (2) consist of C sections which are open towards the outside.
EP19870810539 1986-09-29 1987-09-18 Reel for winding material, especially insulated cables Expired - Lifetime EP0263787B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3913/86 1986-09-29
CH391386A CH671390A5 (en) 1986-09-29 1986-09-29

Publications (2)

Publication Number Publication Date
EP0263787A1 EP0263787A1 (en) 1988-04-13
EP0263787B1 true EP0263787B1 (en) 1991-06-05

Family

ID=4266193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870810539 Expired - Lifetime EP0263787B1 (en) 1986-09-29 1987-09-18 Reel for winding material, especially insulated cables

Country Status (5)

Country Link
EP (1) EP0263787B1 (en)
CN (1) CN1012162B (en)
CH (1) CH671390A5 (en)
DE (1) DE3770570D1 (en)
DK (1) DK506687A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210380378A1 (en) * 2019-01-16 2021-12-09 Liebherr-Components Biberach Gmbh Cable drum for a cable winch and method for production thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2669615B1 (en) * 1990-11-27 1993-08-06 Efsa METAL COIL USED FOR THE MANUFACTURE AND STORAGE OR TRANSPORT OF ROPES OR CABLES.
DE4141276A1 (en) * 1991-12-14 1993-06-17 Hecker & Krosch Gmbh & Co Kg CONNECTED CABLE DRUM WITH INTERCHANGEABLE SIDE SEGMENTS
JP2014201375A (en) * 2013-04-01 2014-10-27 株式会社豊田自動織機 Winding reel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2316950C3 (en) * 1973-04-05 1978-10-05 Industriewerk Nachf. Seifert & Co, Kg, 8632 Neustadt Divisible machine spool
JPS5072074A (en) 1973-08-17 1975-06-14
SE8301867L (en) * 1983-04-05 1984-10-06 Joenkoeping Vulcan Ab DRUM FOR INVOLVING LONG-TERM FORMALS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210380378A1 (en) * 2019-01-16 2021-12-09 Liebherr-Components Biberach Gmbh Cable drum for a cable winch and method for production thereof

Also Published As

Publication number Publication date
DK506687A (en) 1988-03-30
DE3770570D1 (en) 1991-07-11
CN1012162B (en) 1991-03-27
CH671390A5 (en) 1989-08-31
CN87106547A (en) 1988-05-04
DK506687D0 (en) 1987-09-25
EP0263787A1 (en) 1988-04-13

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