EP1320155A2 - Slip ring arrangement - Google Patents

Slip ring arrangement Download PDF

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Publication number
EP1320155A2
EP1320155A2 EP02027223A EP02027223A EP1320155A2 EP 1320155 A2 EP1320155 A2 EP 1320155A2 EP 02027223 A EP02027223 A EP 02027223A EP 02027223 A EP02027223 A EP 02027223A EP 1320155 A2 EP1320155 A2 EP 1320155A2
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EP
European Patent Office
Prior art keywords
ring
rings
insulating
inner ring
outer ring
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
EP02027223A
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German (de)
French (fr)
Other versions
EP1320155B1 (en
EP1320155A3 (en
Inventor
Klaus Dipl.-Ing. Barthelt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stemmann Technik GmbH
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Stemmann Technik GmbH
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Publication date
Application filed by Stemmann Technik GmbH filed Critical Stemmann Technik GmbH
Publication of EP1320155A2 publication Critical patent/EP1320155A2/en
Publication of EP1320155A3 publication Critical patent/EP1320155A3/en
Application granted granted Critical
Publication of EP1320155B1 publication Critical patent/EP1320155B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/08—Slip-rings
    • H01R39/085—Slip-rings the slip-rings being made of carbon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/14—Fastenings of commutators or slip-rings to shafts
    • H01R39/16—Fastenings of commutators or slip-rings to shafts by means of moulded or cast material applied during or after assembly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/64—Devices for uninterrupted current collection

Definitions

  • the invention relates to a slip ring transmitter for the transmission of electrical Currents and / or signals between a stator and a rotor.
  • slip ring transmitters of larger diameter it is known, the so-called Use coal / coal technology. This is the case with larger ones, for example Generators the case. To do this in the circumferentially closed
  • the slip rings must be able to define slip rings for electrical contacts have large wall thicknesses, so that threads are sufficiently large can be accommodated.
  • the object of the invention is based on the prior art to create a slip ring transmitter that works even with a small Diameter in the coal / coal technology is economically producible and can be operated.
  • an inner ring closed on the circumference is now made from one Non-ferrous metal, especially brass, in an insulating compound as a component embedded in a rotor.
  • the insulating compound can, for example Be epoxy resin.
  • the inner ring is assigned to the rotor electrical connection electrically contacted and from here with an end Cable gland connected.
  • a circumferentially closed one also extends Graphite outer ring.
  • This outer ring is laterally through Insulating materials fixed that it is perfectly concentric with the inner ring is centered.
  • a gap is formed, which the different when exposed to heat Expansion coefficients of e.g. Takes account of brass and graphite.
  • the temperature range between the ambient temperature is up to the maximum permissible operating temperature.
  • the contact blades can e.g. made from a copper-beryllium alloy and then be thermally treated.
  • the invention is associated with the particular advantage that the outer ring made of graphite not only small in wall thickness, but also small in diameter can be held. In this way it is possible to be compact Slip ring transmitters with outer diameters of 200mm and smaller ready to provide, in addition to signals, especially measurement signals, also electrical Currents up to about 50 amps can be transmitted.
  • the invention ensures that now speeds up can be reached at about 60 m / s.
  • the sliding contact with only one comparatively small force must be pressed against the outer ring to ensure proper signal and / or power transmission.
  • On low contact pressure leads to significantly less wear and tear ultimately to a longer service life of a slip ring transmitter.
  • the abrasion is very low, so that inside the slip ring In principle, no pollution can occur and therefore no pollution electrical caused by abrasion-related contamination Short circuits can occur.
  • the contact lamellae are defined in the circumferential groove by clamping over bars located on the side of the crown.
  • the measure of claim 4 also contributes to the fact that a perfect power and signal transmission can be guaranteed, without the need for high contact pressure of the sliding contact on the outer ring would.
  • a particularly advantageous embodiment of the invention is in the Features of claim 5 sees.
  • Such an embodiment usually has several inner rings coaxially associated with each other and outer rings and sliding contacts assigned to the outer rings.
  • the inner rings are in an insulating compound in the form of an insulating bush cast.
  • the outer rings are insulated in the form of Isolation rings spaced apart.
  • the Swivel arms point in opposite directions.
  • To an axial to realize compact design are those assigned to each outer ring Swivel arms to the adjacent outer ring in the circumferential direction staggered. A mutual disruptive influence is on this Avoided way.
  • Each inner ring is via electrical connection lines embedded in the insulating bush to a contact connection at one end of the insulating bush guided. Lines then lead from this contact connection to one front cable gland on the rotor.
  • the insulating sleeve is on one Hollow shaft of the rotor is fixed by gluing. This is preferably done only on the ends of the insulating bush.
  • a length section of the hollow shaft which can be made of steel or another material, approximately middle length range of the insulating bush on the circumference with a smaller one Diameter.
  • the outer rings and the insulating rings are one End of the insulating bushing one after the other on the inner rings or Insulated sleeve pushed.
  • the insulating bush has one at one end collar on the circumference. At the other end, a disc is against the last insulating ring clamped, so that then all outer rings and insulating rings are securely fixed in position.
  • the hollow shaft can be in via end bearings Front walls of the stator be mounted.
  • the swivel arms assigned to each outer ring are each attached to a holder hinged.
  • This bracket is on a parallel to the axis of rotation of the rotor extending, fixed in the stator support rod by clamping established.
  • the support rod can, for example, in the end walls of the Stator.
  • the successive brackets are through the spacer sleeves surrounding the support rod are positioned.
  • FIGS. 1 to 3 is a slip ring transmitter for the transmission of referred to electrical currents and / or signals.
  • the slip ring transmitter 1 has a hollow shaft 2 made of steel as a component of a rotor 3. Rolling bearings 4, 5 are provided at the end of the hollow shaft 2, which are inserted into end walls 6, 7 of a stator 8. girth the end walls 6, 7, a cylindrical jacket 9 is fastened by screws 10.
  • an insulating compound up to the stop on a collar 11, in particular epoxy resin, pushed in the form of an insulating bush 12 and attached by gluing.
  • the gluing takes place only at the ends of the Insulating bushing 12.
  • the insulating bushing is in the approximate middle length range 12 provide the hollow shaft 2 with a circumferential recess 13.
  • a total of nine inner rings 14 are made on the circumference of the insulating bushing 12 Cast in brass.
  • the inner rings 14 have the same outer diameter as the insulating bush 12 on.
  • An outer ring 15 is located on the circumference of each inner ring 14 Graphite. Between the outer surface 16 of the inner ring 14 and the inner surface 17 of the outer ring 15, a gap 18 is present, the different coefficients of thermal expansion of the materials of the inner ring 14 and the outer ring 15 are taken into account.
  • the orientation each outer ring 15 is made via lateral insulating materials, in particular Epoxy resin, in the form of insulating rings 19.
  • the outer diameter of the insulating rings 19 is smaller than the outer diameter of the outer rings 15.
  • the inner rings 14 have circumferential grooves introduced into their outer surface 16 20.
  • the areas 21 of the outer surfaces 16 next to the Circumferential grooves 20 are gold-plated.
  • contact blades 22 used in the circumferential grooves 20 are, like the figure 3 reveals in more detail, contact blades 22 used.
  • These contact blades 22 have lateral webs 23 and a central crowning 24.
  • the crowns 24 are permanently on the inside Surfaces 17 of the outer rings 15. Because of this design, everyone Gap size between the inner rings 14 and the outer rings 15 a contact the inner rings 14 with the outer rings 15 via the contact plates 22 ensured.
  • Each inner ring 14 is in a manner not shown with a contact connection 28 connected in the radial collar 27 of the insulating sleeve 12. About this Contact connection 28 then makes an electrical connection to one provided on the face of the hollow shaft 2 cable gland 29.
  • Support rods 30 releasably set.
  • the support rods 30 extend parallel to the axis of rotation 45 of the rotor 3.
  • Brackets 31 threaded and clamped.
  • the axial distance of the Mounts 31 is fixed by sleeves 32 surrounding the support rods 30.
  • the end sliding contacts 34 made of graphite wear.
  • the sliding contacts 34 are by tension springs 35 against the outer Surface 36 of the outer rings 15 pressed.
  • roller bearing 4 designed as a floating bearing is in the by a snap ring 38 End wall 6 set. It also lies against an inner ring collar 39 the end wall 6.
  • the other roller bearing 5 is on the one hand as a fixed bearing a snap ring 40 and an annular collar 41 on the hollow shaft 2 and on the other via a fixed by screws 42 on the end wall 7 Cover 43 and an annular collar 44 fixed to the end wall 7.

Landscapes

  • Arrangements For Transmission Of Measured Signals (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Friction Gearing (AREA)
  • Burglar Alarm Systems (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Motor Or Generator Frames (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Medicines Containing Plant Substances (AREA)

Abstract

The device has at least one non-ferrous inner ring (14) embedded in insulating material (19) as a rotor component, a graphite outer ring (15) enclosing the inner ring to form a gap (18), concentrically centered relative to the inner ring by lateral insulating material and electrically coupled to the inner ring by contact lamella (22) bridging the gap and at least one graphite slip contact (34) pressed against the outer ring as a stator component.

Description

Die Erfindung betrifft einen Schleifringübertrager zur Übertragung von elektrischen Strömen und/oder Signalen zwischen einem Stator und einem Rotor.The invention relates to a slip ring transmitter for the transmission of electrical Currents and / or signals between a stator and a rotor.

Bei Schleifringübertragern größeren Durchmessers ist es bekannt, die sogenannte Kohle/Kohle-Technik einzusetzen. Dies ist beispielsweise bei größeren Generatoren der Fall. Um hierbei in den umfangsseitig geschlossenen Schleifringen elektrische Kontakte festlegen zu können, müssen die Schleifringe große Wanddicken haben, damit auch ausreichend große Gewinde untergebracht werden können.In slip ring transmitters of larger diameter it is known, the so-called Use coal / coal technology. This is the case with larger ones, for example Generators the case. To do this in the circumferentially closed The slip rings must be able to define slip rings for electrical contacts have large wall thicknesses, so that threads are sufficiently large can be accommodated.

Mithin ist die Verwendung der Kohle/Kohle-Technik bei Schleifringübertragern mit kleinen Durchmessern und umfangsseitig geschlossenen Schleifringen nicht möglich.Therefore, the use of coal / coal technology in slip ring transmitters with small diameters and slip rings closed on the circumference not possible.

Um dennoch die Kohle/Kohle-Technik auch bei Schleifringübertragern kleineren Durchmessers anwenden zu können, hat man die Schleifringe in einzelne Segmente gegliedert und jedes Schleifringsegment auf einem entsprechenden Tragkörper, insbesondere aus Messing, durch Klebung festgelegt. To make the coal / coal technology smaller even with slip ring transmitters To be able to use diameter, you have the slip rings in individual Structured segments and each slip ring segment on a corresponding one Support body, especially made of brass, fixed by gluing.

Bei solchen Bauarten waren dann Spalte zwischen den in Umfangsrichtung aufeinander folgenden Schleifringsegmenten nicht zu vermeiden. Die Spalte führten zu elektrischen Störungen mit der Folge, dass die Übertragung von Signalen, insbesondere Messsignalen, mit Ungenauigkeiten verbunden war.In such designs there were gaps between those in the circumferential direction successive slip ring segments cannot be avoided. The gap led to electrical interference with the result that the transmission of Signals, especially measurement signals, was associated with inaccuracies.

Der Erfindung liegt - ausgehend vom Stand der Technik - die Aufgabe zugrunde, einen Schleifringübertrager zu schaffen, der auch bei einem kleinen Durchmesser in der Kohle/Kohle-Technik wirtschaftlich herstellbar ist und betrieben werden kann.The object of the invention is based on the prior art to create a slip ring transmitter that works even with a small Diameter in the coal / coal technology is economically producible and can be operated.

Diese Aufgabe wird mit den im Patentanspruch 1 angegebenen Merkmalen gelöst.This object is achieved with the features specified in claim 1 solved.

Danach wird jetzt ein umfangseitig geschlossener Innenring aus einem Nichteisenmetall, insbesondere aus Messing, in eine Isoliermasse als Bestandteil eines Rotors eingebettet. Die Isoliermasse kann zum Beispiel Epoxydharz sein. Der Innenring wird mit einem dem Rotor zugeordneten elektrischen Anschluss elektrisch kontaktiert und von hier aus mit einer stirnseitigen Kabelverschraubung verbunden.Then an inner ring closed on the circumference is now made from one Non-ferrous metal, especially brass, in an insulating compound as a component embedded in a rotor. The insulating compound can, for example Be epoxy resin. The inner ring is assigned to the rotor electrical connection electrically contacted and from here with an end Cable gland connected.

Umfangsseitig des Innenrings erstreckt sich ein umfangseitig ebenfalls geschlossener Außenring aus Graphit. Dieser Außenring ist seitlich so durch Isoliermassen fixiert, dass er zum Innenring einwandfrei konzentrisch zentriert ist. Hierbei wird zwischen den Innenring und dem Außenring gezielt ein Spalt ausgebildet, welcher bei Wärmeeinwirkung den unterschiedlichen Ausdehnungskoeffizienten von z.B. Messing und Graphit Rechnung trägt. Hierbei ist die Temperaturspanne zwischen der Umgebungstemperatur bis maximal zulässiger Betriebstemperatur zu berücksichtigen.On the circumferential side of the inner ring, a circumferentially closed one also extends Graphite outer ring. This outer ring is laterally through Insulating materials fixed that it is perfectly concentric with the inner ring is centered. Here is targeted between the inner ring and the outer ring a gap is formed, which the different when exposed to heat Expansion coefficients of e.g. Takes account of brass and graphite. The temperature range between the ambient temperature is up to the maximum permissible operating temperature.

Um ständig eine einwandfreie elektrische Kopplung zwischen dem Innenring und dem Außenring unter Überbrückung des Spalts herzustellen, sind umfangsseitig des Innenrings metallische Kontaktlamellen vorgesehen, die über den gesamten Umfang des Innenrings oder nur über Teilbereiche angeordnet sein können. Diese Kontaktlamellen sind so gestaltet, dass sie in sich selbst federnd sind und auf diese Weise den Änderungen in der Spaltgröße zwischen Innenring und Außenring aufgrund Wärmeeinwirkungen ohne weiteres folgen können und ständig die elektrische Kopplung zwischen Innenring und Außenring herstellen.To keep a perfect electrical coupling between the inner ring and to manufacture the outer ring by bridging the gap are circumferential of the inner ring provided metallic contact lamellae, which arranged the entire circumference of the inner ring or only over partial areas could be. These contact blades are designed so that they are in themselves themselves are resilient and in this way the changes in gap size between inner ring and outer ring due to heat effects without more can follow and constantly the electrical coupling between the inner ring and produce the outer ring.

Die Kontaktlamellen können z.B. aus einer Kupfer-Beryllium-Legierung hergestellt und dann wärmetechnisch behandelt sein.The contact blades can e.g. made from a copper-beryllium alloy and then be thermally treated.

Die Erfindung ist mit dem besonderen Vorteil verbunden, dass der Außenring aus Graphit nicht nur in der Wanddicke, sondern auch im Durchmesser klein gehalten werden kann. Auf diese Weise ist es möglich, kompakte Schleifringübertrager mit Außendurchmessern von 200mm und kleiner bereit zu stellen, die neben Signalen, insbesondere Messsignalen, auch elektrische Ströme bis zu etwa 50 Ampere übertragen können.The invention is associated with the particular advantage that the outer ring made of graphite not only small in wall thickness, but also small in diameter can be held. In this way it is possible to be compact Slip ring transmitters with outer diameters of 200mm and smaller ready to provide, in addition to signals, especially measurement signals, also electrical Currents up to about 50 amps can be transmitted.

Darüber hinaus gewährleistet die Erfindung, dass jetzt Geschwindigkeiten bis zu etwa 60 m/s erreichbar sind.In addition, the invention ensures that now speeds up can be reached at about 60 m / s.

Ferner wird mit der Erfindung erreicht, dass der Schleifkontakt nur mit einer vergleichsweise geringen Kraft an den Außenring gepresst werden muss, um eine einwandfreie Signal- und/oder Stromübertragung zu gewährleisten. Ein geringer Anpressdruck führt zu einem deutlich geringeren Verschleiss und letztlich zu einer längeren Standzeit eines Schleifringübertragers. Außerdem ist der Abrieb sehr gering, so dass innerhalb des Schleifringübertragers im Prinzip keine Verschmutzung eintreten kann und demzufolge auch keine durch eine abriebbedingte Verschmutzung hervorgerufenen elektrischen Kurzschlüsse entstehen können.It is also achieved with the invention that the sliding contact with only one comparatively small force must be pressed against the outer ring to ensure proper signal and / or power transmission. On low contact pressure leads to significantly less wear and tear ultimately to a longer service life of a slip ring transmitter. Moreover the abrasion is very low, so that inside the slip ring In principle, no pollution can occur and therefore no pollution electrical caused by abrasion-related contamination Short circuits can occur.

Um den Kontaktlamellen einen sicheren Halt am Innenring zu geben, ist gemäß Patentanspruch 2 in die äußere Oberfläche des Innenrings eine Umfangsnut eingearbeitet. In diese Umfangsnut werden nun die Kontaktlamellen über den ganzen Umfang verteilt oder nur abschnittsweise eingebettet. Da die Kontaktlamellen einen mittleren bombierten Abschnitt aufweisen, liegt dieser Abschnitt unabhängig von der Größe des Spalts zwischen Innenring und Außenring ständig an der inneren Oberfläche des Außenrings.In order to give the contact lamella a secure hold on the inner ring, according to Claim 2 in the outer surface of the inner ring a circumferential groove incorporated. The contact blades are now in this circumferential groove distributed over the entire scope or embedded only in sections. There the contact lamellae have a central cambered section this section regardless of the size of the gap between the inner ring and outer ring constantly on the inner surface of the outer ring.

Die Festlegung der Kontaktlamellen in der Umfangsnute erfolgt insbesondere durch Klemmung über seitlich der Bombierung befindliche Stege.In particular, the contact lamellae are defined in the circumferential groove by clamping over bars located on the side of the crown.

Ein einwandfreier Korrosionsschutz der Kontaktlamellen wird entsprechend Patentanspruch 3 dadurch erzielt, dass die neben den Kontaktlamellen liegenden Bereiche der äußeren Oberfläche des Innenrings vergoldet sind.Correct corrosion protection of the contact lamellae is accordingly Claim 3 achieved in that lying next to the contact blades Areas of the outer surface of the inner ring are gold-plated.

Auch die Maßnahme des Patentanspruchs 4 trägt mit dazu bei, dass eine einwandfreie Strom- und Signalübertragung gewährleistet werden kann, ohne dass hohe Anpressdrücke des Schleifkontakts an den Außenring erforderlich wären.The measure of claim 4 also contributes to the fact that a perfect power and signal transmission can be guaranteed, without the need for high contact pressure of the sliding contact on the outer ring would.

Eine besonders vorteilhafte Ausführungsform der Erfindung wird in den Merkmalen des Patentanspruchs 5 erblickt. Eine solche Ausführungsform besitzt in der Regel mehrere mit Abstand einander koaxial zugeordnete Innenringe und Außenringe sowie den Außenringen zugeordnete Schleifkontakte. Die Innenringe sind hierbei in eine Isoliermasse in Form einer Isolierbuchse eingegossen. Die Außenringe sind durch Isoliermassen in Form von Isolierringen zueinander distanziert. An jeden Außenring sind zwei Schleifkontakte gedrückt, die an den Enden von Schwenkarmen befestigt sind. Die Schwenkarme weisen hierbei in entgegengesetzte Richtungen. Um eine axial kompakte Bauart zu verwirklichen, sind die jedem Außenring zugeordneten Schwenkarme zum jeweils benachbarten Außenring in Umfangsrichtung versetzt angeordnet. Ein gegenseitiger störender Einfluss wird auf diese Weise vermieden.A particularly advantageous embodiment of the invention is in the Features of claim 5 sees. Such an embodiment usually has several inner rings coaxially associated with each other and outer rings and sliding contacts assigned to the outer rings. The inner rings are in an insulating compound in the form of an insulating bush cast. The outer rings are insulated in the form of Isolation rings spaced apart. There are two sliding contacts on each outer ring pressed, which are attached to the ends of swivel arms. The Swivel arms point in opposite directions. To an axial to realize compact design are those assigned to each outer ring Swivel arms to the adjacent outer ring in the circumferential direction staggered. A mutual disruptive influence is on this Avoided way.

Jeder Innenring ist über in die Isolierbuchse eingebettete elektrische Verbindungsleitungen zu einem Kontaktanschluss an einem Ende der Isolierbuchse geführt. Von diesem Kontaktanschluss führen dann Leitungen zu einer stirnseitigen Kabelverschraubung am Rotor.Each inner ring is via electrical connection lines embedded in the insulating bush to a contact connection at one end of the insulating bush guided. Lines then lead from this contact connection to one front cable gland on the rotor.

Nach den Merkmalen des Patentanspruchs 6 ist die Isolierbuchse auf einer Hohlwelle des Rotors durch Klebung festgelegt. Dies erfolgt bevorzugt nur an den Enden der Isolierbuchse. Dazu ist ein Längenabschnitt der Hohlwelle, welche aus Stahl oder aus einem anderen Material bestehen kann, im etwa mittleren Längenbereich der Isolierbuchse umfangsseitig mit einem kleineren Durchmesser versehen. Die Außenringe und die Isolierringe sind von einem Stirnende der Isolierbuchse her nacheinander auf die Innenringe bzw. die Isolierbuchse geschoben. Dazu weist die Isolierbuchse an einem Ende einen umfangseitigen Kragen auf. Am anderen Ende wird eine Scheibe gegen den letzten Isolierring verspannt, so dass dann alle Außenringe und Isolierringe sicher lagefixiert sind. Die Hohlwelle kann über endseitige Wälzlager in Stirnwänden des Stators gelagert sein.According to the features of claim 6, the insulating sleeve is on one Hollow shaft of the rotor is fixed by gluing. This is preferably done only on the ends of the insulating bush. For this is a length section of the hollow shaft, which can be made of steel or another material, approximately middle length range of the insulating bush on the circumference with a smaller one Diameter. The outer rings and the insulating rings are one End of the insulating bushing one after the other on the inner rings or Insulated sleeve pushed. For this purpose, the insulating bush has one at one end collar on the circumference. At the other end, a disc is against the last insulating ring clamped, so that then all outer rings and insulating rings are securely fixed in position. The hollow shaft can be in via end bearings Front walls of the stator be mounted.

Die jedem Außenring zugeordneten Schwenkarme sind jeweils an eine Halterung angelenkt. Diese Halterung ist auf einer sich parallel zur Drehachse des Rotors erstreckenden, im Stator fixierten Tragstange durch Klemmung festgelegt. Die Tragstange kann beispielsweise in den Stirnwänden des Stators festgelegt sein. Die aufeinander folgenden Halterungen sind durch die Tragstange umgebende Distanzhülsen lagebestimmt.The swivel arms assigned to each outer ring are each attached to a holder hinged. This bracket is on a parallel to the axis of rotation of the rotor extending, fixed in the stator support rod by clamping established. The support rod can, for example, in the end walls of the Stator. The successive brackets are through the spacer sleeves surrounding the support rod are positioned.

Die Erfindung ist nachfolgend anhand eines in den Zeichnungen veranschaulichten Ausführungsbeispiels näher erläutert. Es zeigen:

Figur 1
in der Stirnansicht einen Schleifringübertrager;
Figur 2
einen vertikalen Längsschnitt durch die Darstellung der Figur 1 entlang der Linie II-II in Richtung der Pfeile lla gesehen und
Figur 3
in vergrößerter Darstellung den Ausschnitt III der Figur 2.
The invention is explained in more detail below on the basis of an exemplary embodiment illustrated in the drawings. Show it:
Figure 1
in the front view a slip ring transmitter;
Figure 2
seen a vertical longitudinal section through the representation of Figure 1 along the line II-II in the direction of the arrows 11a and
Figure 3
in an enlarged view, section III of FIG. 2.

Mit 1 ist in den Figuren 1 bis 3 ein Schleifringübertrager zur Übertragung von elektrischen Strömen und/oder Signalen bezeichnet.1 in FIGS. 1 to 3 is a slip ring transmitter for the transmission of referred to electrical currents and / or signals.

Der Schleifringübertrager 1 weist eine Hohlwelle 2 aus Stahl als Bestandteil eines Rotors 3 auf. Endseitig der Hohlwelle 2 sind Wälzlager 4, 5 vorgesehen, die in Stirnwände 6, 7 eines Stators 8 eingesetzt sind. Umfangsseitig der Stirnwände 6, 7 ist ein zylindrischer Mantel 9 durch Schrauben 10 befestigt.The slip ring transmitter 1 has a hollow shaft 2 made of steel as a component of a rotor 3. Rolling bearings 4, 5 are provided at the end of the hollow shaft 2, which are inserted into end walls 6, 7 of a stator 8. girth the end walls 6, 7, a cylindrical jacket 9 is fastened by screws 10.

Auf die Hohlwelle 2 ist bis zum Anschlag an einen Kragen 11 eine Isoliermasse, insbesondere Epoxydharz, in Form einer Isolierbuchse 12 geschoben und durch Klebung befestigt. Die Klebung erfolgt nur an den Enden der Isolierbuchse 12. Dazu ist im etwa mittleren Längenbereich der Isolierbuchse 12 die Hohlwelle 2 mit einer umfangsseitigen Ausdrehung 13 versehen.On the hollow shaft 2 is an insulating compound up to the stop on a collar 11, in particular epoxy resin, pushed in the form of an insulating bush 12 and attached by gluing. The gluing takes place only at the ends of the Insulating bushing 12. The insulating bushing is in the approximate middle length range 12 provide the hollow shaft 2 with a circumferential recess 13.

Am Umfang der Isolierbuchse 12 sind insgesamt neun Innenringe 14 aus Messing eingegossen. Wie hierbei insbesondere die Figur 3 erkennen lässt, weisen die Innenringe 14 denselben Außendurchmesser wie die Isolierbuchse 12 auf. Umfangsseitig jedes Innenrings 14 liegt ein Außenring 15 aus Graphit. Zwischen der äußeren Oberfläche 16 des Innenrings 14 und der inneren Oberfläche 17 des Außenrings 15 ist ein Spalt 18 vorhanden, der die unterschiedlichen Wärmeausdehnungskoeffizienten der Materialien des Innenrings 14 und des Außenrings 15 berücksichtigt. Die Lagebestimmung jedes Außenrings 15 erfolgt über seitliche Isoliermassen, insbesondere Epoxydharz, in Form von Isolierringen 19. Der Außendurchmesser der Isolierringe 19 ist kleiner als der Außendurchmesser der Außenringe 15.A total of nine inner rings 14 are made on the circumference of the insulating bushing 12 Cast in brass. As can be seen here in particular in FIG. 3, the inner rings 14 have the same outer diameter as the insulating bush 12 on. An outer ring 15 is located on the circumference of each inner ring 14 Graphite. Between the outer surface 16 of the inner ring 14 and the inner surface 17 of the outer ring 15, a gap 18 is present, the different coefficients of thermal expansion of the materials of the inner ring 14 and the outer ring 15 are taken into account. The orientation each outer ring 15 is made via lateral insulating materials, in particular Epoxy resin, in the form of insulating rings 19. The outer diameter of the insulating rings 19 is smaller than the outer diameter of the outer rings 15.

Die Innenringe 14 besitzen in ihre äußere Oberfläche 16 eingebrachte Umfangsnuten 20. Die Bereiche 21 der äußeren Oberflächen 16 neben den Umfangsnuten 20 sind vergoldet. In die Umfangsnuten 20 sind, wie die Figur 3 näher erkennen lässt, Kontaktlamellen 22 eingesetzt. Diese Kontaktlamellen 22 besitzen seitliche Stege 23 und eine mittlere Bombierung 24. Über die Stege 23 sind die Kontaktlamellen 22 in den Umfangsnuten 20 durch Klemmung lagefixiert. Die Bombierungen 24 liegen permanent an den inneren Oberflächen 17 der Außenringe 15. Aufgrund dieser Gestaltung ist bei jeder Spaltgröße zwischen den Innenringen 14 und den Außenringen 15 ein Kontakt der Innenringe 14 mit den Außenringen 15 über die Kontaktlamellen 22 sichergestellt.The inner rings 14 have circumferential grooves introduced into their outer surface 16 20. The areas 21 of the outer surfaces 16 next to the Circumferential grooves 20 are gold-plated. In the circumferential grooves 20 are, like the figure 3 reveals in more detail, contact blades 22 used. These contact blades 22 have lateral webs 23 and a central crowning 24. About the Web 23 are the contact blades 22 in the circumferential grooves 20 by clamping fixed in position. The crowns 24 are permanently on the inside Surfaces 17 of the outer rings 15. Because of this design, everyone Gap size between the inner rings 14 and the outer rings 15 a contact the inner rings 14 with the outer rings 15 via the contact plates 22 ensured.

Die axiale Lagefixierung der Außenringe 15 und der Isolierringe 19 erfolgt durch eine stirnseitig mit Schrauben 25 an der Isolierbuchse 12 festlegbare Scheibe 26, welche die Isolierringe 19 und Außenringe 15 gegen einen Radialkragen 27 der Isolierbuchse 12 drückt.The axial position fixing of the outer rings 15 and the insulating rings 19 takes place by means of a screw 25 on the end of the insulating bushing 12 Disc 26, which the insulating rings 19 and outer rings 15 against a radial collar 27 of the insulating bush 12 presses.

Jeder Innenring 14 ist in nicht näher dargestellter Weise mit einem Kontaktanschluss 28 im Radialkragen 27 der Isolierbuchse 12 verbunden. Über diesen Kontaktanschluss 28 erfolgt dann eine elektrische Verbindung zu einer stirnseitig der Hohlwelle 2 vorgesehenen Kabelverschraubung 29.Each inner ring 14 is in a manner not shown with a contact connection 28 connected in the radial collar 27 of the insulating sleeve 12. About this Contact connection 28 then makes an electrical connection to one provided on the face of the hollow shaft 2 cable gland 29.

In den Stirnwänden 6, 7 des Stators 8 sind in Umfangsrichtung versetzt zwei Tragstangen 30 lösbar festgelegt. Die Tragstangen 30 erstrecken sich parallel zur Drehachse 45 des Rotors 3. Auf die Tragstangen 30 sind Halterungen 31 gefädelt und festgeklemmt. Der axiale Abstand der Halterungen 31 ist durch die Tragstangen 30 umgebende Hülsen 32 fixiert. An die Halterungen 31 sind in entgegengesetzte Richtungen weisende Schwenkarme 33 angelenkt, die endseitig Schleifkontakte 34 aus Graphit tragen. Die Schleifkontakte 34 sind durch Zugfedern 35 gegen die äußere Oberfläche 36 der Außenringe 15 gedrückt.Two are offset in the circumferential direction in the end walls 6, 7 of the stator 8 Support rods 30 releasably set. The support rods 30 extend parallel to the axis of rotation 45 of the rotor 3. Are on the support rods 30 Brackets 31 threaded and clamped. The axial distance of the Mounts 31 is fixed by sleeves 32 surrounding the support rods 30. At the brackets 31 are facing in opposite directions Swivel arms 33 articulated, the end sliding contacts 34 made of graphite wear. The sliding contacts 34 are by tension springs 35 against the outer Surface 36 of the outer rings 15 pressed.

Von den Schwenkarmen 33 aus erstrecken sich nicht näher dargestellte elektrische Verbindungen zu einer Kabelverschraubung 37 in der Stirnwand 6 des Stators 8.From the swivel arms 33 extend not shown electrical connections to a cable gland 37 in the end wall 6 of the stator 8.

Das als Loslager gestaltete Wälzlager 4 ist durch einen Sprengring 38 in der Stirnwand 6 festgelegt. Es liegt ferner gegen einen inneren Ringkragen 39 der Stirnwand 6. Das andere Wälzlager 5 ist als Festlager einerseits über einen Sprengring 40 sowie einen Ringkragen 41 an der Hohlwelle 2 und andererseits über einen durch Schrauben 42 an der Stirnwand 7 festgelegten Deckel 43 sowie einen Ringkragen 44 an der Stirnwand 7 fixiert.The roller bearing 4 designed as a floating bearing is in the by a snap ring 38 End wall 6 set. It also lies against an inner ring collar 39 the end wall 6. The other roller bearing 5 is on the one hand as a fixed bearing a snap ring 40 and an annular collar 41 on the hollow shaft 2 and on the other via a fixed by screws 42 on the end wall 7 Cover 43 and an annular collar 44 fixed to the end wall 7.

BezugszeichenaufstellungREFERENCE NUMBERS

1 -1 -
SchleifringübertragerA slip ring transmission
2 -2 -
Hohlwellehollow shaft
3 -3 -
Rotorrotor
4 -4 -
Wälzlagerroller bearing
5 -5 -
Wälzlagerroller bearing
6 -6 -
Stirnwand v. 8Front wall v. 8th
7 -7 -
Stirnwand v. 8Front wall v. 8th
8 -8th -
Statorstator
9 -9 -
Mantel v. 8Coat of 8th
10 -10 -
Schrauben f. 9Screws f. 9
11 -11 -
Kragen an 2Collar on 2nd
12 -12 -
Isolierbuchseinsulating bush
13 -13 -
Ausdrehung an 2Unscrew on 2nd
14-14-
Innenringeinner rings
15-15
Außenringeouter rings
16 -16 -
äußere Oberfläche v. 14outer surface v. 14
17 -17 -
innere Oberfläche v. 15inner surface v. 15
18 -18 -
Spalt zw. 16 u. 17Gap between 16 and 17
19 -19 -
Isolierringeinsulating rings
20 -20 -
Umfangsnuten in 16Circumferential grooves in 16
21 -21 -
Bereiche neben 20Areas next to 20
22 -22 -
KontaktlamellenMultilams
23 -23 -
Stege v. 22Stege v. 22
24 -24 -
Bombierung v. 22Crowning v. 22
25 -25 -
Schrauben f. 26Screws f. 26
26 -26 -
Scheibedisc
27 -27 -
Radialkragen an 12Radial collar on 12
28 -28 -
KontaktanschlussContact Termination
29 -29 -
KabelverschraubungCable gland
30 -30 -
Tragstangensupport rods
31 -31 -
Halterungen auf 30Mounts on 30
32 -32 -
Hülsen auf 30Sleeves on 30
33 -33 -
Schwenkarmeswing arms
34 -34 -
Schleifkontaktesliding contacts
35 -35 -
Zugfedern an 33Tension springs on 33
36 -36 -
äußere Oberfläche v. 15outer surface v. 15
37 -37 -
KabelverschraubungCable gland
38 -38 -
Sprengring f. 4Snap ring f. 4
39 -39 -
Ringkragen an 6Ring collar on 6
40 -40 -
Sprengring f. 5Snap ring f. 5
41 -41 -
Ringkragen an 2Ring collar on 2nd
42 -42 -
Schrauben f. 43Screws f. 43
43 -43 -
Deckel an 7Cover on 7
44 -44 -
Ringkragen an 7Ring collar on 7
45 -45 -
Drehachse v. 3Axis of rotation v. 3

Claims (7)

Schleifringübertrager, der mindestens einen in eine Isoliermasse (12) als Bestandteil eines Rotors (3) eingebetteten Innenring (14) aus einem Nichteisenmetall und einen den Innenring (14) unter Ausbildung eines Spalts (18) mit radialem Abstand umgebenden Außenring (15) aus Graphit aufweist, der durch seitliche Isoliermassen (19) zum Innenring (14) konzentrisch zentriert und mit dem Innenring (14) durch den Spalt (18) überbrückende metallische Kontaktlamellen (22) elektrisch gekoppelt ist, wobei an den Außenring (15) mindestens ein aus Graphit bestehender Schleifkontakt (34) als Bestandteil eines Stators (8) angedrückt ist.Slip ring transformer, the at least one in an insulating compound (12) Part of a rotor (3) embedded inner ring (14) from a Non-ferrous metal and the inner ring (14) to form one Gap (18) with a radial distance surrounding outer ring (15) made of graphite having lateral insulating masses (19) to the inner ring (14) concentrically centered and with the inner ring (14) through the gap (18) bridging metallic contact lamellae (22) is electrically coupled, at least one made of graphite on the outer ring (15) Sliding contact (34) as part of a stator (8) is pressed. Schleifringübertrager nach Patentanspruch 1, bei welchem die Kontaktlamellen (22) in einer Umfangsnute (20) in der äußeren Oberfläche (16) des Innenrings (14) lagefixiert und unter Überbrückung des Spalts (18) zwischen Innenring (14) und Außenring (15) gegen die innere Oberfläche (17) des Außenrings (15) federnd angedrückt sind.Slip ring transmitter according to claim 1, wherein the contact blades (22) in a circumferential groove (20) in the outer surface (16) of the inner ring (14) fixed in position and by bridging the gap (18) between inner ring (14) and outer ring (15) against the inner surface (17) of the outer ring (15) are pressed resiliently. Schleifringübertrager nach Patentanspruch 1 oder 2, bei welchem die neben den Kontaktlamellen (22) liegenden Bereiche (21) der äußeren Oberfläche (16) des Innenrings (14) vergoldet sind.Slip ring transmitter according to claim 1 or 2, in which the next to the contact blades (22) lying areas (21) of the outer Surface (16) of the inner ring (14) are gold-plated. Schleifringübertrager nach einem der Patentansprüche 1 bis 3, bei welchem der Schleifkontakt (34) federnd an die äußere Oberfläche (36) des Außenrings (15) gedrückt ist.Slip ring transmitter according to one of claims 1 to 3, in which the sliding contact (34) resiliently against the outer surface (36) of the Outer ring (15) is pressed. Schleifringübertrager nach einem der Patentansprüche 1 bis 4, der mindestens zwei jeweils koaxial einander zugeordnete Innenringe (14) und Außenringe (15) sowie den Außenringen (15) zugeordnete Schleifkontakte (34) aufweist, bei welchem die Innenringe (14) mit axialem Abstand zueinander in eine Isoliermasse (12) in Form einer Isolierbuchse eingegossen, die Außenringe (15) durch Isoliermassen (19) in Form von Isolierringen zueinander distanziert und die Schleifkontakte (34) in paarweiser Zuordnung an jeden Außenring (15) gedrückt sind, wobei die Schleifkontakte (34) an den Enden von in entgegengesetzte Richtungen weisenden Schwenkarmen (33) vorgesehen und die einem Außenring (15) zugeordneten Schwenkarme (33) zu den Schwenkarmen (33) des benachbarten Außenrings (15) umfangsseitig versetzt sind.Slip ring transmitter according to one of claims 1 to 4, the at least two inner rings (14) and coaxially assigned to each other Outer rings (15) and sliding contacts assigned to the outer rings (15) (34), in which the inner rings (14) with an axial distance cast into one another in an insulating compound (12) in the form of an insulating bush, the outer rings (15) by insulating materials (19) in the form of Isolating rings spaced from each other and the sliding contacts (34) in paired assignment to each outer ring (15) are pressed, the Sliding contacts (34) at the ends of in opposite directions pointing swivel arms (33) and an outer ring (15) assigned swivel arms (33) to the swivel arms (33) of the adjacent outer ring (15) are offset circumferentially. Schleifringübertrager nach Patentanspruch 5, bei welchem die Isolierbuchse (12) auf einer Hohlwelle (2) durch Klebung festgelegt ist und die Außenringe (15) sowie die Isolierringe (19) axial auf die Innenringe (14) bzw. die Isolierbuchse (12) geschoben und an der Isolierbuchse (12) lagefixiert sind.Slip ring transformer according to claim 5, wherein the insulating bush (12) on a hollow shaft (2) is fixed by gluing and Outer rings (15) and the insulating rings (19) axially on the inner rings (14) or the insulating sleeve (12) is pushed and fixed in position on the insulating sleeve (12) are. Schleifringübertrager nach Patentanspruch 5 oder 6, bei welchem die einem Außenring (15) zugeordneten Schwenkarme (33) an eine Halterung (31) angelenkt sind, die auf einer sich parallel zur Drehachse (45) des Rotors (3) erstreckenden, im Stator (8) fixierten Tragstange (30) durch Klemmung festgelegt ist.Slip ring transmitter according to claim 5 or 6, in which the an outer ring (15) assigned swivel arms (33) to a holder (31) are articulated on a parallel to the axis of rotation (45) of the rotor (3) extending, in the stator (8) fixed support rod (30) is fixed by clamping.
EP02027223A 2001-12-15 2002-12-06 Slip ring arrangement Expired - Lifetime EP1320155B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10161740A DE10161740B4 (en) 2001-12-15 2001-12-15 A slip ring transmission
DE10161740 2001-12-15

Publications (3)

Publication Number Publication Date
EP1320155A2 true EP1320155A2 (en) 2003-06-18
EP1320155A3 EP1320155A3 (en) 2006-03-29
EP1320155B1 EP1320155B1 (en) 2007-08-15

Family

ID=7709393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02027223A Expired - Lifetime EP1320155B1 (en) 2001-12-15 2002-12-06 Slip ring arrangement

Country Status (5)

Country Link
EP (1) EP1320155B1 (en)
AT (1) ATE370535T1 (en)
DE (2) DE10161740B4 (en)
DK (1) DK1320155T3 (en)
ES (1) ES2290235T3 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1524737A1 (en) * 2003-10-17 2005-04-20 Rigaku Corporation Rotary current-collecting device and rotating anode x-ray tube
CN107978944A (en) * 2017-12-29 2018-05-01 扬州海通电子科技有限公司 A kind of synchronous rotation device of large-scale slip ring group
EP3683902A1 (en) 2019-01-17 2020-07-22 Schleifring GmbH Snap-in slipring module
CN113422271A (en) * 2021-07-28 2021-09-21 中国兵器装备集团上海电控研究所 Slip ring mandrel designed by three-dimensional circuit and manufacturing method thereof
CN116799584A (en) * 2023-05-18 2023-09-22 广东明阳电气股份有限公司 Slip ring assembly and rotary conveying electric equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009040106A1 (en) * 2009-09-04 2011-03-10 Schunk Kohlenstofftechnik Gmbh Slip ring device

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CH215756A (en) * 1940-07-31 1941-07-15 Bbc Brown Boveri & Cie Slip ring for electrical machines.
FR1063144A (en) * 1952-06-06 1954-04-29 Conradty Fa C Improved conductance carbon slip ring
US3636394A (en) * 1970-05-18 1972-01-18 Suhl Elektrogeraete Veb K Elastic contacts for carbon collector rings having insulating bodies in electric motors
GB1526401A (en) * 1975-10-28 1978-09-27 Mcgeoch & Co Ltd W Slip-ring assembly
US20010033117A1 (en) * 2000-02-25 2001-10-25 Wolfgang Vesper Slip-ring configuration in electric motors and generators, slip-ring body and method for retooling slip-ring bodies

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ZA741589B (en) * 1974-03-12 1975-07-30 Rilectric Motor Spares Ltd Slipring assembly
DD248909A1 (en) * 1986-03-03 1987-08-19 Dessau Elektromotorenwerk SINGLE RINGING BODY WITH CARBON RING, ESPECIALLY FOR HIGH SPECIFIC LOADS

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CH215756A (en) * 1940-07-31 1941-07-15 Bbc Brown Boveri & Cie Slip ring for electrical machines.
FR1063144A (en) * 1952-06-06 1954-04-29 Conradty Fa C Improved conductance carbon slip ring
US3636394A (en) * 1970-05-18 1972-01-18 Suhl Elektrogeraete Veb K Elastic contacts for carbon collector rings having insulating bodies in electric motors
GB1526401A (en) * 1975-10-28 1978-09-27 Mcgeoch & Co Ltd W Slip-ring assembly
US20010033117A1 (en) * 2000-02-25 2001-10-25 Wolfgang Vesper Slip-ring configuration in electric motors and generators, slip-ring body and method for retooling slip-ring bodies

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1524737A1 (en) * 2003-10-17 2005-04-20 Rigaku Corporation Rotary current-collecting device and rotating anode x-ray tube
US7005774B2 (en) 2003-10-17 2006-02-28 Rigaku Corporation Rotary current-collecting device and rotating anode X-ray tube
CN107978944A (en) * 2017-12-29 2018-05-01 扬州海通电子科技有限公司 A kind of synchronous rotation device of large-scale slip ring group
CN107978944B (en) * 2017-12-29 2024-06-07 扬州海通电子科技有限公司 Synchronous rotating device of large slip ring group
EP3683902A1 (en) 2019-01-17 2020-07-22 Schleifring GmbH Snap-in slipring module
WO2020148221A1 (en) 2019-01-17 2020-07-23 Schleifring Gmbh Snap-in slipring module
CN113422271A (en) * 2021-07-28 2021-09-21 中国兵器装备集团上海电控研究所 Slip ring mandrel designed by three-dimensional circuit and manufacturing method thereof
WO2023005187A1 (en) * 2021-07-28 2023-02-02 中国兵器装备集团上海电控研究所 Slip ring mandrel designed by using three-dimensional circuit and manufacturing method for slip ring mandrel
CN116799584A (en) * 2023-05-18 2023-09-22 广东明阳电气股份有限公司 Slip ring assembly and rotary conveying electric equipment

Also Published As

Publication number Publication date
DE10161740A1 (en) 2003-07-03
DE50210692D1 (en) 2007-09-27
ATE370535T1 (en) 2007-09-15
DK1320155T3 (en) 2007-10-15
EP1320155B1 (en) 2007-08-15
ES2290235T3 (en) 2008-02-16
EP1320155A3 (en) 2006-03-29
DE10161740B4 (en) 2006-01-26

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