EP2375422A2 - Insulator, in particular for a pantograph of a rail vehicle - Google Patents

Insulator, in particular for a pantograph of a rail vehicle Download PDF

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Publication number
EP2375422A2
EP2375422A2 EP11156900A EP11156900A EP2375422A2 EP 2375422 A2 EP2375422 A2 EP 2375422A2 EP 11156900 A EP11156900 A EP 11156900A EP 11156900 A EP11156900 A EP 11156900A EP 2375422 A2 EP2375422 A2 EP 2375422A2
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EP
European Patent Office
Prior art keywords
head
insulator according
support
insulator
support member
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
EP11156900A
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German (de)
French (fr)
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EP2375422B1 (en
EP2375422A3 (en
Inventor
Stefan Jutz
Wilhelm Kraemer
Guenther Mohr
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Georg Jordan GmbH
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Georg Jordan GmbH
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Publication of EP2375422A3 publication Critical patent/EP2375422A3/en
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    • 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
    • H01B17/14—Supporting insulators
    • H01B17/16—Fastening of insulators to support, to conductor, or to adjoining insulator
    • 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
    • H01B17/32—Single insulators consisting of two or more dissimilar insulating bodies
    • H01B17/325—Single insulators consisting of two or more dissimilar insulating bodies comprising a fibre-reinforced insulating core member

Definitions

  • the invention relates to an insulator, in particular for a pantograph of a rail vehicle.
  • Such insulators are installed in the roof area of a rail vehicle and serve for isolated support.
  • the insulator must pass high mechanical alternating loads.
  • the bending stresses induced by the pantograph must be included.
  • the insulator must have sufficient electrical resistance to prevent breakdown of high voltages, such as those caused by a lightning strike.
  • Known long-rod insulators in high-voltage overhead lines generally have a solid core made of glass fiber reinforced plastic and a shield made of silicone.
  • composite insulators have been used on the roof of rail vehicles for years for reasons of weight saving according to this principle.
  • a major disadvantage of these insulators is that these insulators are not mechanically dimensionally stable, especially at high speeds. To fulfill the mechanical properties, the insulators are therefore usually made solid.
  • insulators made of epoxy resin or porcelain are also known. These components have a very high weight, which is undesirable, especially in the head region of a rail vehicle.
  • the insulator on a head and a foot part, which are electrically insulated from each other and each having a connecting piece.
  • the current collector can be connected to the connection piece of the head section.
  • the foot part serves for connection to the rail vehicle.
  • Head and foot are connected to each other by means of a trained as a hollow profile support member.
  • the distance between the head and the foot part is covered on the outside of the support member by means of an insulating jacket.
  • the support member may be manufactured as a low weight component while having sufficient stability.
  • hollow profiles have a high resistance to bending, so that they are optimally suited for the present application.
  • the insulating jacket completes the insulator and guarantees sufficient dielectric strength to meet the electrical requirements.
  • the support member consists of a glass fiber reinforced plastic. This material is characterized by a low weight and a very high mechanical stability.
  • the support member is formed as a pipe section section.
  • the support member regardless of the loading direction, it always has the same equatorial moment of resistance to bending in the cross-sectional plane. It can thus reliably absorb the changing stresses during railway operation.
  • a conceivable alternative of the invention is such that the head part has a lug which comprises the support part on its outer circumference.
  • the approach can be tightly connected to the support member in the region of the grip, so that an electrical tightness can be produced.
  • the inner cross section of the approach is adapted to the outer cross section of the support member adapted in the connection region, so that here an air-tight connection can be produced. This air-tightness guarantees that no harmful, due to current flow erosion can occur during operation.
  • a further preferred embodiment variant of the invention is the shape that the foot part has a support portion which supports the support part transversely to its longitudinal extent form-fitting manner. This form-fitting guaranteed in a simple way across the main load direction, a secure fixation between the support member and footboard.
  • the support section additionally catches the support part in the area in which the highest bending stress occurs during operation. In this way, a strength-optimized design of the insulator is achieved.
  • Similar to the head part and the support portion may include the support member on the outer periphery.
  • the dimensional design of support section and support member may be such that again an electrical and airtight connection can be produced.
  • a preferred embodiment of an insulator is such that the support member in the approach of the head part and / or in the support portion of the foot part cohesively fixed, in particular glued.
  • the material bond (the bond) guarantees airtightness in the connection area between the supporting part and the head / foot part.
  • the cohesive connection in this area is a particularly suitable connection method, because it is charged here on thrust, which is the preferred load variant for cohesive connections.
  • a material-optimized transition between the support member and the head and the foot part is possible via the cohesive connection, because on the choice of material of the cohesive connection, an adaptation of the contact resistance between the two components can be achieved.
  • An insulator according to the invention may be characterized in that the supporting part is supported by means of an insulating piece at the end face relative to the head and / or foot part. In this way, an additional isolation is achieved, which increases the lay length.
  • the insulating piece should be designed so that the lay length through the support member is longer than the lay length over the insulating jacket. Then a current dissipation over the insulating jacket is guaranteed.
  • the insulating piece may preferably consist of a silicone material or EPDM, which has high resistance properties.
  • silicone material is flexible, so that it seals the all-round open surface of the support profile airtight all round and thus guarantees the electrical resistance.
  • the insulating jacket consists of cast resin.
  • a casting resin system based on epoxy resin or optionally silicone may be used, casting resin is particularly good. Has properties in terms of dimensional stability at high speeds.
  • the casting resin can be poured onto the supporting part and, if necessary, the head or foot part.
  • airtight seals are produced, which guarantee the fatigue strength of the insulator (see above for erosion).
  • the infused insulating jacket forms a liquid-tight seal, so that penetration of moisture into the intermediate regions between the insulator jacket and support or between insulator jacket and head / foot part is prevented.
  • the insulating jacket is sealed relative to the head and / or foot part by means of a sealing element.
  • the insulator has an upper head part 30 and a lower foot part 20.
  • an insulator jacket 10 is arranged, which has a head section 11 and a foot section 13.
  • screens 12 are arranged, which serve to increase the electrical creep length.
  • FIG. 2 shows the insulator in vertical section.
  • the head part 30 and the foot part 20 by means of a support member 40 are spaced from each other.
  • the support member 40 consists mainly of a deflected profile section on GRP material.
  • FIGS. 3 and 4 let recognize an assembly consisting of foot 20, head 30 and support member 40 in more detail.
  • the support member 40 has an upper and a lower connecting portion 41, 42.
  • the upper connecting portion 41 serves for coupling the head part 30, the lower connecting portion 42 serves for coupling the foot part 20.
  • the support part 40 encloses an inner space 43 with a circular cross section.
  • the head part 30 has a connection piece 31 into which a fastening receptacle 32 is inserted.
  • the connector 31 terminates in a support flange 33, which is aligned radially to the central longitudinal axis of the mounting receptacle 32.
  • the pantograph of a rail vehicle can be coupled. The pantograph is then connected via the attachment receptacle 32 with the insulator.
  • the head part 30 has a circumferential groove, which can receive an O-ring as a seal receptacle 34.
  • the head part 30 carries a cylindrical projection 35 which an inner receptacle for the support member 40 encloses.
  • the inner cross section of the projection 35 is adapted to the outer cross section of the support member 40.
  • the foot part 20 in turn has a connection piece 21, which is provided with a flat footprint 22.
  • the contact surface 22 is perpendicular to the central longitudinal axis of the support member 40.
  • the connecting piece 21 is followed by a transition portion 24, a support portion 25 at.
  • the support portion 25 encloses an inner receptacle, in which the support member 40 is inserted.
  • the inner receptacle is adapted in its cross section to the outer geometry of the support member 40.
  • an insulating piece 50 in the form of a disc consisting of silicone material or EPDM.
  • a thin layer of liquid silicone material is brushed between the insulating piece 50 and the facing bottom surface in the foot part 20 in order to guarantee an air-tight connection between insulating piece 50 and foot part 20.
  • the support member 40 is coated on its outer periphery in the region of its insert length in the inner receptacle of the support portion 25 with an adhesive.
  • the metal foot part 20 is dimensionally dimensioned so that a press fit between the support member 40 and support portion 25 is present. For this reason, the foot part 20 is heated prior to assembly. It then expands, so that the support member 40 can be joined largely powerless in the support section 25. Then, the support member 40 connects via the adhesive layer form-fitting manner with the foot part 20.
  • the support member 40 is inserted into the support portion 25 that the insulating piece 50 is compressed.
  • an airtight connection in this area between the end face of the support member 40 and the insulating piece 50 is made.
  • the head part 30 is coupled.
  • an insulating piece 50 is glued in the form of a silicone disk in the neck 35 again.
  • the head part 30 is heated and slipped over the adhesive-coated support member 40.
  • the head portion 30 is cooled to form a press fit between the outer periphery of the support member 40 and the inner surface 36 of the boss 35. During the cooling process and the incipient bonding between the joining partners, a mounting pressure is maintained, which guarantees that the open end of the support member 40 compresses the insulating piece 50 to form a tight connection.
  • the according to FIG. 3 or 4 produced assembly is then placed in a mold and encased therein by casting resin.
  • the casting resin then forms the insulating jacket 10th
  • FIG. 5 shows the bottom view of the assembly according to the FIGS. 3 and 4 , As can be seen from this illustration, two holes are provided, which form inlet openings for the casting resin, which is introduced into the casting mold.
  • sprues 14 In the area of the inlet openings 23 are sprues 14, as the FIG. 2 lets recognize. These sprues 14 close the inlet openings 23 tight. Offset by 90 ° to the inlet openings 23 20 mounting holes 27 are provided in the foot part in the form of holes in the foot part. About this mounting receivers 27, the foot part 20 can be bolted to a roof assembly of the rail vehicle.

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  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Insulators (AREA)

Abstract

The insulator has a head part (30) and a foot part (20) electrically insulated from each other. The head part and foot part are provided with a connecting piece (21), where the head part and the foot part are connected to each other by a hollow supporting part (40). The distance between the head part and the foot part is covered by an insulation sheet (10) that is made of cast resin. The supporting part is made of a fiberglass reinforced plastic as a tubular section. The head part is provided with an attachment piece at the outer circumference of the supporting part.

Description

Die Erfindung betrifft einen Isolator, insbesondere für einen Pantografen eines Schienenfahrzeuges. Derartige Isolatoren werden im Dachbereich eines Schienenfahrzeuges verbaut und dienen zur isolierten Abstützung.The invention relates to an insulator, in particular for a pantograph of a rail vehicle. Such insulators are installed in the roof area of a rail vehicle and serve for isolated support.

Während des Betriebseinsatzes muss der Isolator hohen mechanischen Wechselbelastungen bestehen. Insbesondere sind die durch den Pantografen induzierten Biegebeanspruchungen aufzunehmen. Weiterhin muss der Isolator eine ausreichende elektrische Widerstandsfähigkeit aufweisen, um ein Durchschlagen von Hochspannungen, wie sie bspw. durch einen Blitzeinschlag bewirkt werden, zu verhindern.During operation, the insulator must pass high mechanical alternating loads. In particular, the bending stresses induced by the pantograph must be included. Furthermore, the insulator must have sufficient electrical resistance to prevent breakdown of high voltages, such as those caused by a lightning strike.

Weiterhin werden hohe Anforderungen an die Wetterfestigkeit der Isolatoren gestellt, sodass sie sowohl in sehr heißen als auch in sehr kalten Klimazonen eingesetzt werden können.Furthermore, high demands are placed on the weather resistance of the insulators, so that they can be used both in very hot and in very cold climates.

Bekannte Langstabisolatoren in Hochspannungs-Freileitungsnetzen weisen in der Regel einen Vollkern aus glasfaserverstärktem Kunststoff auf und eine Schirmung aus Silikon. In der Bahntechnik werden auf dem Dach von Schienenfahrzeugen seit Jahren aus Gründen der Gewichtseinsparung Verbund-Isolatoren nach diesem Prinzip eingesetzt. Ein großer Nachteil dieser Isolatoren ist, dass diese Isolatoren insbesondere bei hohen Geschwindigkeiten nicht mechanisch formstabil sind. Zur Erfüllung der mechanischen Eigenschaften werden die Isolatoren daher üblicherweise massiv ausgebildet.Known long-rod insulators in high-voltage overhead lines generally have a solid core made of glass fiber reinforced plastic and a shield made of silicone. In railway technology, composite insulators have been used on the roof of rail vehicles for years for reasons of weight saving according to this principle. A major disadvantage of these insulators is that these insulators are not mechanically dimensionally stable, especially at high speeds. To fulfill the mechanical properties, the insulators are therefore usually made solid.

Aus dem Stand der Technik sind weiterhin Isolatoren aus Epoxydharzvollverguss bzw. aus Porzellan bekannt. Diese Bauteile weisen ein sehr hohes Eigengewicht auf, das insbesondere im Kopfbereich eines Schienenfahrzeuges unerwünscht ist.From the state of the art insulators made of epoxy resin or porcelain are also known. These components have a very high weight, which is undesirable, especially in the head region of a rail vehicle.

Es ist Aufgabe der Erfindung, einen Isolator der eingangs erwähnten Art bereitzustellen, der bei geringem Gewicht den gestellten hohen Anforderungen an die elektrische und mechanische Stabilität sowie die Wetterfestigkeit gerecht wird.It is an object of the invention to provide an insulator of the type mentioned, which meets the high demands placed on the electrical and mechanical stability and the weather resistance with low weight.

Diese Aufgabe wird mit einem Isolator gemäß dem Anspruch 1 gelöst. Demgemäß weist der Isolator ein Kopf- und ein Fußteil auf, die gegeneinander elektrisch isoliert sind und jeweils ein Anschlussstück aufweisen. Am Anschlussstück des Kopfteils lässt sich der Stromabnehmer ankoppeln. Das Fußteil dient zur Verbindung mit dem Schienenfahrzeug. Kopf- und Fußteil sind mittels eines als Hohlprofil ausgebildeten Tragteils miteinander verbunden. Der Abstandsbereich zwischen dem Kopf- und dem Fußteil ist auf der Außenseite des Tragteils mittels eines Isoliermantels überdeckt. Das Tragteil kann als Bauteil mit geringem Eigengewicht hergestellt werden, wobei es eine ausreichende Stabilität aufweist. Insbesondere haben Hohlprofile ein hohes Widerstandsmoment gegen Biegung, sodass sie sich für den vorliegenden Einsatzfall optimal eignen. Der Isoliermantel vervollständigt den Isolator und garantiert eine ausreichende Durchschlagfestigkeit, um die elektrischen Anforderungen zu erfüllen. Gemäß einer bevorzugten Erfindungsvariante kann es vorgesehen sein, dass das Tragteil aus einem glasfaserverstärkten Kunststoff besteht. Dieses Material zeichnet sich durch ein geringes Eigengewicht und eine sehr hohe mechanische Stabilität aus.This object is achieved with an insulator according to claim 1. Accordingly, the insulator on a head and a foot part, which are electrically insulated from each other and each having a connecting piece. The current collector can be connected to the connection piece of the head section. The foot part serves for connection to the rail vehicle. Head and foot are connected to each other by means of a trained as a hollow profile support member. The distance between the head and the foot part is covered on the outside of the support member by means of an insulating jacket. The support member may be manufactured as a low weight component while having sufficient stability. In particular, hollow profiles have a high resistance to bending, so that they are optimally suited for the present application. The insulating jacket completes the insulator and guarantees sufficient dielectric strength to meet the electrical requirements. According to a preferred variant of the invention it can be provided that the support member consists of a glass fiber reinforced plastic. This material is characterized by a low weight and a very high mechanical stability.

Bevorzugt ist das Tragteil als Rohrprofilabschnitt ausgebildet. Damit hat es in der Querschnittsebene unabhängig von der Belastungsrichtung stets dasselbe äquatoriale Widerstandsmoment gegen Biegung. Es kann so die wechselnden Beanspruchungen während des Bahnbetriebes zuverlässig aufnehmen.Preferably, the support member is formed as a pipe section section. Thus, regardless of the loading direction, it always has the same equatorial moment of resistance to bending in the cross-sectional plane. It can thus reliably absorb the changing stresses during railway operation.

Eine denkbare Erfindungsalternative ist derart, dass das Kopfteil einen Ansatz aufweist, der das Tragteil an seinem Außenumfang umfasst. Auf diese Weise wird eine stabile, quer zur Mittellängsachse des Tragteils, formschlüssige Verbindung zwischen Kopfteil und Tragteil hergestellt. Darüber hinaus kann der Ansatz im Bereich des Übergriffes dicht mit dem Tragteil verbunden werden, sodass auch eine elektrische Dichtigkeit herstellbar ist. Vorzugsweise ist der Innenquerschnitt des Ansatzes auf den Außenquerschnitt des Tragteils im Verbindungsbereich angepasst ausgelegt, sodass hier eine luftdichte Verbindung herstellbar ist. Diese Luftdichtigkeit garantiert, dass während des Betriebes keine schädlichen, durch Stromfluss wirkenden Erosionen auftreten können.A conceivable alternative of the invention is such that the head part has a lug which comprises the support part on its outer circumference. In this way, a stable, transverse to the central longitudinal axis of the support member, positive connection between the headboard and the support member is made. In addition, the approach can be tightly connected to the support member in the region of the grip, so that an electrical tightness can be produced. Preferably, the inner cross section of the approach is adapted to the outer cross section of the support member adapted in the connection region, so that here an air-tight connection can be produced. This air-tightness guarantees that no harmful, due to current flow erosion can occur during operation.

Eine weitere bevorzugte Ausgestaltungsvariante der Erfindung ist der Gestalt, dass das Fußteil einen Stützabschnitt aufweist, der das Tragteil quer zu dessen Längserstreckung formschlüssig abstützt. Dieser Formschluss garantiert auf einfache Weise quer zur Hauptbelastungsrichtung, eine sichere Fixierung zwischen Tragteil und Fußteil. Darüber hinaus fängt der Stützabschnitt das Tragteil zusätzlich in dem Bereich ab, in dem die höchste Biegespannung während des Betriebes auftritt. Auf diese Weise ist eine festigkeitsoptimierte Auslegung des Isolators erreicht.A further preferred embodiment variant of the invention is the shape that the foot part has a support portion which supports the support part transversely to its longitudinal extent form-fitting manner. This form-fitting guaranteed in a simple way across the main load direction, a secure fixation between the support member and footboard. In addition, the support section additionally catches the support part in the area in which the highest bending stress occurs during operation. In this way, a strength-optimized design of the insulator is achieved.

Ähnlich wie bei dem Kopfteil kann auch der Stützabschnitt das Tragteil an dessen Außenumfang umfassen. Dabei kann die maßliche Auslegung von Stützabschnitt und Tragteil derart sein, dass wieder eine elektrische und luftdichte Verbindung herstellbar ist.Similar to the head part and the support portion may include the support member on the outer periphery. In this case, the dimensional design of support section and support member may be such that again an electrical and airtight connection can be produced.

Eine bevorzugte Ausgestaltung eines Isolators ist dabei derart, dass das Tragteil in dem Ansatz des Kopfteils und/oder in dem Stützabschnitt des Fußteils stoffschlüssig festgelegt, insbesondere verklebt ist. Über den Stoffschluss (die Verklebung) wird eine Luftdichtigkeit im Verbindungsbereich zwischen dem Tragteil und dem Kopf-/Fußteil garantiert. Darüber hinaus ist die stoffschlüssige Verbindung in diesem Bereich eine besonders geeignete Verbindungsmethode, denn sie wird hier auf Schub belastet, was bei stoffschlüssigen Verbindungen die bevorzugte Belastungsvariante ist. Weiterhin wird über die stoffschlüssige Verbindung ein materialoptimierter Übergang zwischen dem Tragteil und dem Kopf- und dem Fußteil möglich, denn über die Materialwahl der stoffschlüssigen Verbindung kann eine Anpassung des Übergangswiderstandes zwischen den beiden Bauteilen erreicht werden.A preferred embodiment of an insulator is such that the support member in the approach of the head part and / or in the support portion of the foot part cohesively fixed, in particular glued. The material bond (the bond) guarantees airtightness in the connection area between the supporting part and the head / foot part. In addition, the cohesive connection in this area is a particularly suitable connection method, because it is charged here on thrust, which is the preferred load variant for cohesive connections. Furthermore, a material-optimized transition between the support member and the head and the foot part is possible via the cohesive connection, because on the choice of material of the cohesive connection, an adaptation of the contact resistance between the two components can be achieved.

Ein erfindungsgemäßer Isolator kann dadurch gekennzeichnet sein, dass das Tragteil mittels eines Isolierstückes stirnseitig gegenüber dem Kopf- und/oder Fußteil abgestützt ist. Auf diese Weise wird eine zusätzliche Isolation erreicht, die die Schlaglänge vergrößert. Dabei soll das Isolierstück so ausgelegt werden, dass die Schlaglänge durch das Tragteil hindurch länger ist als die Schlaglänge über dem Isoliermantel. Dann wird eine Stromableitung über den Isoliermantel garantiert. Das Isolierstück kann bevorzugt aus einem Silikonmaterial oder EPDM bestehen, das hohe Widerstandseigenschaften aufweist. Zudem ist Silikonmaterial flexibel, sodass es die stirnseitig offene Fläche des Tragprofils umlaufend luftdicht abdichtet und so den elektrischen Widerstand garantiert.An insulator according to the invention may be characterized in that the supporting part is supported by means of an insulating piece at the end face relative to the head and / or foot part. In this way, an additional isolation is achieved, which increases the lay length. The insulating piece should be designed so that the lay length through the support member is longer than the lay length over the insulating jacket. Then a current dissipation over the insulating jacket is guaranteed. The insulating piece may preferably consist of a silicone material or EPDM, which has high resistance properties. In addition, silicone material is flexible, so that it seals the all-round open surface of the support profile airtight all round and thus guarantees the electrical resistance.

Eine bevorzugte Erfindungsvariante sieht vor, dass der Isoliermantel aus Gießharz besteht. Beispielsweise kann als Schirmmaterial ein Gießharzsystem basierend auf Epoxydharz oder wahlweise auch Silikon eingesetzt werden, wobei Gießharz besonders gute. Eigenschaften in Bezug auf die Formstabilität bei hohen Geschwindigkeiten aufweist.A preferred variant of the invention provides that the insulating jacket consists of cast resin. For example, as a screen material, a casting resin system based on epoxy resin or optionally silicone may be used, casting resin is particularly good. Has properties in terms of dimensional stability at high speeds.

Das Gießharz kann auf das Tragteil und auf ggf. das Kopf- bzw. Fußteil aufgegossen werden. Dabei werden in den Übergangsbereichen luftdichte Abschlüsse bewirkt, die die Dauerfestigkeit des Isolators garantieren (Erosion siehe oben). Weiterhin bildet der aufgegossene Isolatormantel einen flüssigkeitsdichten Abschluss, sodass ein Eindringen von Feuchtigkeit in die Zwischenbereiche zwischen Isolatormantel und Trag- bzw. zwischen Isolatormantel und Kopf-/Fußteil verhindert ist. Zusätzlich oder alternativ kann es vorgesehen sein, dass der Isoliermantel gegenüber dem Kopf- und/oder Fußteil mittels eines Dichtelementes abgedichtet ist.The casting resin can be poured onto the supporting part and, if necessary, the head or foot part. In the transition areas airtight seals are produced, which guarantee the fatigue strength of the insulator (see above for erosion). Furthermore, the infused insulating jacket forms a liquid-tight seal, so that penetration of moisture into the intermediate regions between the insulator jacket and support or between insulator jacket and head / foot part is prevented. Additionally or alternatively, it can be provided that the insulating jacket is sealed relative to the head and / or foot part by means of a sealing element.

Die Erfindung wird im Folgenden anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles näher erläutert. Es zeigen:

Figur 1
in Seitenansicht einen Isolator;
Figur 2
den Isolator gemäß Figur 1 längs des in Figur 1 mit II-II gekennzeichneten Schnittverlaufes;
Figur 3
eine Baugruppe des Isolators gemäß Figur 1 in Seitenansicht;
Figur 4
die Baugruppe gemäß Figur 3 längs des in Figur 3 mit IV-IV gekennzeichneten Schnittverlaufes; und
Figur 5
die Baugruppe gemäß Figur 3 in Ansicht von unten.
The invention will be explained in more detail below with reference to an embodiment shown in the drawings. Show it:
FIG. 1
in side view an insulator;
FIG. 2
the insulator according to FIG. 1 along the in FIG. 1 with II-II marked cutting course;
FIG. 3
an assembly of the insulator according to FIG. 1 in side view;
FIG. 4
the module according to FIG. 3 along the in FIG. 3 with IV-IV marked cutting course; and
FIG. 5
the module according to FIG. 3 in bottom view.

Wie die Figur 1 zeigt, weist der Isolator ein oberes Kopfteil 30 und ein unteres Fußteil 20 auf. Im Bereich zwischen dem Fußteil 20 und dem Kopfteil 30 ist ein Isolatormantel 10 angeordnet, der einen Kopfabschnitt 11 und einen Fußabschnitt 13 aufweist. Zwischen Kopf- und Fußabschnitt 11, 13 sind ,Schirme 12 angeordnet, die zur Vergrößerung der elektrischen Kriechlänge dienen.As the FIG. 1 shows, the insulator has an upper head part 30 and a lower foot part 20. In the area between the foot part 20 and the head part 30, an insulator jacket 10 is arranged, which has a head section 11 and a foot section 13. Between head and foot sections 11, 13, screens 12 are arranged, which serve to increase the electrical creep length.

Figur 2 zeigt den Isolator im Vertikalschnitt. Wie aus dieser Darstellung deutlich wird, sind das Kopfteil 30 und das Fußteil 20 mittels eines Tragteils 40 zueinander beabstandet gehalten. Das Tragteil 40 besteht vorwiegend aus einem abgelenkten Profilabschnitt auf GFK-Material. FIG. 2 shows the insulator in vertical section. As is clear from this illustration, the head part 30 and the foot part 20 by means of a support member 40 are spaced from each other. The support member 40 consists mainly of a deflected profile section on GRP material.

Figuren 3 und 4 lassen eine Baugruppe bestehend aus Fußteil 20, Kopfteil 30 und Tragteil 40 näher im Detail erkennen. Wie diese Darstellungen zeigen, weist das Tragteil 40 einen oberen und einen unteren Verbindungsabschnitt 41, 42 auf. Der obere Verbindungsabschnitt 41 dient zur Ankopplung des Kopfteils 30, der untere Verbindungsabschnitt 42 dient zur Ankopplung des Fußteils 20. Das Tragteil 40 umschließt einen Innenraum 43 mit kreisförmigem Querschnitt. Das Kopfteil 30 besitzt ein Anschlussstück 31, in das eine Befestigungsaufnahme 32 eingebracht ist. Das Anschlussstück 31 läuft in einem Stützflansch 33 aus, der radial zur Mittellängsachse der Befestigungsaufnahme 32 ausgerichtet ist. An dem Anschlussstück 31 und dem Stützflansch 33 kann der Pantograph eines Schienenfahrzeugs angekoppelt werden. Der Pantograph wird dann über die Befestigungsaufnahme 32 mit dem Isolator verbunden. FIGS. 3 and 4 let recognize an assembly consisting of foot 20, head 30 and support member 40 in more detail. As these illustrations show, the support member 40 has an upper and a lower connecting portion 41, 42. The upper connecting portion 41 serves for coupling the head part 30, the lower connecting portion 42 serves for coupling the foot part 20. The support part 40 encloses an inner space 43 with a circular cross section. The head part 30 has a connection piece 31 into which a fastening receptacle 32 is inserted. The connector 31 terminates in a support flange 33, which is aligned radially to the central longitudinal axis of the mounting receptacle 32. At the connecting piece 31 and the support flange 33, the pantograph of a rail vehicle can be coupled. The pantograph is then connected via the attachment receptacle 32 with the insulator.

Unterhalb des Stützflansches 33 besitzt das Kopfteil 30 eine umlaufende Nut, die als Dichtungsaufnahme 34 einen O-Ring aufnehmen kann. An seinem dem Anschlussstück 31 abgewandten Ende trägt das Kopfteil 30 einen zylindrischen Ansatz 35, der eine Innenaufnahme für das Tragteil 40 umschließt. Dabei ist der Innenquerschnitt des Ansatzes 35 auf den Außenquerschnitt des Tragteils 40 angepasst.Below the support flange 33, the head part 30 has a circumferential groove, which can receive an O-ring as a seal receptacle 34. At its end facing away from the connecting piece 31, the head part 30 carries a cylindrical projection 35 which an inner receptacle for the support member 40 encloses. In this case, the inner cross section of the projection 35 is adapted to the outer cross section of the support member 40.

Das Fußteil 20 weist wiederum ein Anschlussstück 21 auf, das mit einer ebenen Aufstandsfläche 22 versehen ist. Die Aufstandsfläche 22 steht senkrecht zur Mittellängsachse des Tragteils 40. An das Anschlussstück 21 schließt sich über einen Übergangsabschnitt 24 ein Stützabschnitt 25 an. Der Stützabschnitt 25 umschließt eine Innenaufnahme, in die das Tragteil 40 eingesetzt ist. Dabei ist wiederum die Innenaufnahme in ihrem Querschnitt an die Außengeometrie des Tragteils 40 angepasst ausgebildet.The foot part 20 in turn has a connection piece 21, which is provided with a flat footprint 22. The contact surface 22 is perpendicular to the central longitudinal axis of the support member 40. The connecting piece 21 is followed by a transition portion 24, a support portion 25 at. The support portion 25 encloses an inner receptacle, in which the support member 40 is inserted. In this case, in turn, the inner receptacle is adapted in its cross section to the outer geometry of the support member 40.

Zur Montage der in den Figuren 3 und 4 gezeigten Baueinheit wird zunächst in das Fußteil 20 ein Isolierstück 50 in Form einer Scheibe bestehend aus Silikonmaterial oder EPDM eingelegt. Dabei wird zwischen dem Isolierstück 50 und der zugewandten Bodenfläche im Fußteil 20 eine dünne Schicht aus flüssigem Silikonmaterial aufgestrichen, um eine luftdichte Verbindung zwischen Isolierstück 50 und Fußteil 20 zu garantieren. Anschließend wird das Tragteil 40 an seinem Außenumfang im Bereich seiner Einsatzlänge in die Innenaufnahme des Stützabschnittes 25 mit einem Kleber bestrichen. Das aus Metall bestehende Fußteil 20 ist maßlich so dimensioniert, dass ein Presssitz zwischen Tragteil 40 und Stützabschnitt 25 vorhanden ist. Aus diesem Grund wird vor der Montage das Fußteil 20 erwärmt. Es dehnt sich dann aus, sodass das Tragteil 40 weitgehend kraftlos in den Stützabschnitt 25 gefügt werden kann. Dann verbindet sich das Tragteil 40 über die Klebeschicht formschlüssig mit dem Fuβteil 20.For mounting in the FIGS. 3 and 4 shown unit is first inserted into the base 20, an insulating piece 50 in the form of a disc consisting of silicone material or EPDM. In this case, a thin layer of liquid silicone material is brushed between the insulating piece 50 and the facing bottom surface in the foot part 20 in order to guarantee an air-tight connection between insulating piece 50 and foot part 20. Subsequently, the support member 40 is coated on its outer periphery in the region of its insert length in the inner receptacle of the support portion 25 with an adhesive. The metal foot part 20 is dimensionally dimensioned so that a press fit between the support member 40 and support portion 25 is present. For this reason, the foot part 20 is heated prior to assembly. It then expands, so that the support member 40 can be joined largely powerless in the support section 25. Then, the support member 40 connects via the adhesive layer form-fitting manner with the foot part 20.

Wie Figur 4 erkennen lässt, ist das Tragteil 40 so in den Stützabschnitt 25 eingesetzt, dass das Isolierstück 50 komprimiert wird. Damit wird eine luftdichte Verbindung in diesem Bereich zwischen der Stirnseite des Tragteils 40 und dem Isolierstück 50 hergestellt.As FIG. 4 can be seen, the support member 40 is inserted into the support portion 25 that the insulating piece 50 is compressed. Thus, an airtight connection in this area between the end face of the support member 40 and the insulating piece 50 is made.

Anschließend wird das Kopfteil 30 angekoppelt. Hierzu wird wieder ein Isolierstück 50 in Form einer Silikonscheibe in den Ansatz 35 eingeklebt. Anschließend wird das Kopfteil 30 erwärmt und über das mit Klebstoff bestrichene Tragteil 40 gestülpt. Anschließend wird das Kopfteil 30 zur Bildung einer Pressverbindung zwischen dem Außenumfang des Tragteils 40 und der Innenfläche 36 des Ansatzes 35 abgekühlt. Während des Abkühlvorganges und der einsetzenden Verklebung zwischen den Fügepartnern wird ein Montagedruck aufrechterhalten, der garantiert, dass die offene Stirnseite des Tragteils 40 das Isolierstück 50 zur Bildung einer dichten Verbindung komprimiert.Subsequently, the head part 30 is coupled. For this purpose, an insulating piece 50 is glued in the form of a silicone disk in the neck 35 again. Subsequently, the head part 30 is heated and slipped over the adhesive-coated support member 40. Subsequently, the head portion 30 is cooled to form a press fit between the outer periphery of the support member 40 and the inner surface 36 of the boss 35. During the cooling process and the incipient bonding between the joining partners, a mounting pressure is maintained, which guarantees that the open end of the support member 40 compresses the insulating piece 50 to form a tight connection.

Die gemäß Figur 3 bzw. 4 hergestellte Baueinheit wird anschließend in eine Form gegeben und darin mittels Gießharz ummantelt. Das Gießharz bildet dann den Isoliermantel 10.The according to FIG. 3 or 4 produced assembly is then placed in a mold and encased therein by casting resin. The casting resin then forms the insulating jacket 10th

Figur 5 zeigt die Bodenansicht der Baugruppe gemäß den Figuren 3 und 4. Wie diese Darstellung erkennen lässt, sind zwei Bohrungen vorgesehen, die Eintrittsöffnungen für das Gießharz bilden, das in die Gießform eingebracht wird. FIG. 5 shows the bottom view of the assembly according to the FIGS. 3 and 4 , As can be seen from this illustration, two holes are provided, which form inlet openings for the casting resin, which is introduced into the casting mold.

Im Bereich der Eintrittsöffnungen 23 bilden sich Angüsse 14, wie dies die Figur 2 erkennen lässt. Diese Angüsse 14 schließen die Eintrittsöffnungen 23 dicht ab. Um 90° versetzt zu den Eintrittsöffnungen 23 sind in dem Fußteil 20 Befestigungsaufnahmen 27 in Form von Bohrungen vorgesehen. Über diese Befestigungsaufnahmen 27 kann das Fußteil 20 mit einer Dachbaugruppe des Schienenfahrzeugs verschraubt werden.In the area of the inlet openings 23 are sprues 14, as the FIG. 2 lets recognize. These sprues 14 close the inlet openings 23 tight. Offset by 90 ° to the inlet openings 23 20 mounting holes 27 are provided in the foot part in the form of holes in the foot part. About this mounting receivers 27, the foot part 20 can be bolted to a roof assembly of the rail vehicle.

Claims (11)

Isolator, insbesondere für einen Pantographen eines Schienenfahrzeugs, mit einem Kopf- und einem Fußteil (30, 20), die gegeneinander elektrisch isoliert sind, und jeweils ein Anschlussstück (21, 31) aufweisen, wobei das Kopf- und das Fußteil (30, 20) mittels eines als Hohlprofil ausgebildeten Tragteils (40) miteinander verbunden sind, und wobei der Abstandsbereich zwischen dem Kopf- und dem Fußteil (30, 20) mittels eines Isoliermantels (10) außenseitig zumindest bereichsweise überdeckt ist.Insulator, in particular for a pantograph of a railway vehicle, having a head and a foot part (30, 20), which are electrically insulated from each other, and each having a connecting piece (21, 31), wherein the head and the foot part (30, 20 ) are connected to each other by means of a support member (40) formed as a hollow profile, and wherein the distance region between the head and the foot part (30, 20) by means of an insulating jacket (10) is at least partially covered on the outside. Isolator nach Anspruch 1,
dadurch gekennzeichnet,
dass das Tragteil (40) aus einem glasfaserverstärkten Kunststoff besteht.Insulator according to claim 1,
characterized,
that the supporting part (40) consists of a glass fiber reinforced plastic. Isolator nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass das Tragteil (40) als Rohrprofilabschnitt ausgebildet ist.Insulator according to claim 1 or 2,
characterized,
that the support member (40) is formed as a tubular profile section. Isolator nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
dass das Kopfteil (30) einen Ansatz (35) aufweist, der das Tragteil (40) an seinem Außenumfang umfasst.Insulator according to one of claims 1 to 3,
characterized,
in that the head part (30) has a projection (35) which comprises the support part (40) on its outer circumference. Isolator nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
dass das Fußteil (20) einen Stützabschnitt (25) aufweist, der das Tragteil (40) quer zu dessen Längserstreckung formschlüssig abstützt.Insulator according to one of claims 1 to 4,
characterized,
that the foot part (20) comprises a support portion (25) that supports the support member (40) transversely to its longitudinal extension a form fit. Isolator nach Anspruch 5,
dadurch gekennzeichnet,
dass der Stützabschnitt (25) das Tragteil (40) an dessen Außenumfang umfasst.Insulator according to claim 5,
characterized,
in that the support section (25) comprises the support part (40) on its outer circumference. Isolator nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
dass das Tragteil (40) in dem Ansatz (35) des Kopfteils (30) und/oder in dem Stützabschnitt (25) des Fußteils (20) stoffschlüssig festgelegt, insbesondere verklebt ist.Insulator according to one of claims 1 to 6,
characterized,
in that the support part (40) is firmly bonded, in particular glued, in the attachment (35) of the head part (30) and / or in the support part (25) of the foot part (20). Isolator nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
dass das Tragteil (40) mittels eines Isolationsstückes (50) stirnseitig gegenüber dem Kopf- und/oder dem Fußteil (30, 20) abgestützt ist.Insulator according to one of claims 1 to 7,
characterized,
in that the supporting part (40) is supported by means of an insulating piece (50) on the face side relative to the head part and / or the foot part (30, 20). Isolator nach Anspruch 8,
dadurch gekennzeichnet,
dass das Isolierstück (50) aus einem Silikonmaterial oder EPDM besteht, das die stirnseitig offene Fläche des Tragteils (40) umlaufend abdichtet.Insulator according to claim 8,
characterized,
in that the insulating piece (50) consists of a silicone material or EPDM, which circumferentially seals the face of the supporting part (40) which is open on the face side. Isolator nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet,
dass der Isoliermantel (10) aus Gießharz besteht.Insulator according to one of claims 1 to 9,
characterized,
that the insulating jacket (10) consists of cast resin. Isolator nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet,
dass der Isoliermantel (10) gegenüber dem Kopf- und/oder dem Fußteil (30, 20) mittels eines Dichtelementes (15) abgedichtet ist.Insulator according to one of claims 1 to 10,
characterized,
that the insulating jacket (10) against the head and / or the foot part (30, 20) by means of a sealing element (15) is sealed.
EP11156900.0A 2010-04-09 2011-03-04 Insulator, in particular for a pantograph of a rail vehicle Not-in-force EP2375422B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010016384A DE102010016384A1 (en) 2010-04-09 2010-04-09 Insulator, in particular for a pantograph of a rail vehicle

Publications (3)

Publication Number Publication Date
EP2375422A2 true EP2375422A2 (en) 2011-10-12
EP2375422A3 EP2375422A3 (en) 2013-11-13
EP2375422B1 EP2375422B1 (en) 2017-12-27

Family

ID=44168352

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11156900.0A Not-in-force EP2375422B1 (en) 2010-04-09 2011-03-04 Insulator, in particular for a pantograph of a rail vehicle

Country Status (2)

Country Link
EP (1) EP2375422B1 (en)
DE (1) DE102010016384A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3229242B1 (en) * 2016-04-04 2020-02-12 Siemens Aktiengesellschaft High voltage feed-through
CN114628091A (en) * 2022-02-22 2022-06-14 北京中车赛德铁道电气科技有限公司 Supporting insulator for pantograph

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
DE102017216730A1 (en) * 2017-09-21 2019-03-21 Siemens Mobility GmbH insulator
DE102019121932A1 (en) * 2019-08-14 2021-02-18 Bombardier Transportation Gmbh Insulator for a rail vehicle and pantograph
DE102021105875A1 (en) 2021-03-11 2022-09-15 Maschinenfabrik Reinhausen Gmbh INSULATOR FOR HIGH VOLTAGE APPLICATIONS

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Publication number Priority date Publication date Assignee Title
DE684741C (en) * 1936-04-15 1939-12-04 Siemens Schuckertwerke Akt Ges Hollow support insulator with an insulating layer on the end face facing the foot
FR2655471B1 (en) * 1989-12-01 1992-02-21 Sediver Ste Europ Isolateurs V RIGID ELECTRICAL INSULATOR.
FR2800690B1 (en) * 1999-11-10 2001-12-07 Alstom ASSEMBLY COMPRISING A FIRST CHASSIS AND A SECOND CHASSIS PENDULATING LATERALLY FROM THE FIRST CHASSIS, AND CORRESPONDING RAIL VEHICLE
GB2432565B (en) * 2005-11-28 2009-05-13 Aea Technology Plc Pantograph with sensors

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Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3229242B1 (en) * 2016-04-04 2020-02-12 Siemens Aktiengesellschaft High voltage feed-through
CN114628091A (en) * 2022-02-22 2022-06-14 北京中车赛德铁道电气科技有限公司 Supporting insulator for pantograph

Also Published As

Publication number Publication date
DE102010016384A1 (en) 2011-12-15
EP2375422B1 (en) 2017-12-27
EP2375422A3 (en) 2013-11-13

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