EP3841641B1 - Slip ring assembly - Google Patents

Slip ring assembly Download PDF

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Publication number
EP3841641B1
EP3841641B1 EP19768701.5A EP19768701A EP3841641B1 EP 3841641 B1 EP3841641 B1 EP 3841641B1 EP 19768701 A EP19768701 A EP 19768701A EP 3841641 B1 EP3841641 B1 EP 3841641B1
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EP
European Patent Office
Prior art keywords
slip ring
brush
cleaning
contact
ring assembly
Prior art date
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Active
Application number
EP19768701.5A
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German (de)
French (fr)
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EP3841641A1 (en
Inventor
Frank Dropmann
Renè KRISTEN
Dirk Lötgering
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 of EP3841641A1 publication Critical patent/EP3841641A1/en
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    • 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
    • H01R39/56—Devices for lubricating or polishing slip-rings or commutators during operation of the collector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/14—Maintenance of current collectors, e.g. reshaping of brushes, cleaning of commutators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/002—Maintenance of line connectors, e.g. cleaning

Definitions

  • the invention relates to a slip ring transmitter according to the features in the preamble of claim 1.
  • Slip ring assemblies are electromechanical components that are used to transfer energy, data and/or control signals from a rotating to a stationary component or vice versa. They are used in applications that, due to their rotary motion, do not allow energy and data to be supplied via a permanently installed cable.
  • a slip ring transmitter of the usual design has a slip ring carrier and at least one slip ring arranged on the slip ring carrier and a contact module with contact elements, in particular contact springs.
  • a contact module is also referred to as a brush block in technical terms.
  • the slip rings and contact elements are an essential part of the construction.
  • the contact elements make contact with a sliding track of the slip ring and together with this form a sliding contact. Due to the relative movement between the components, there is a continuous slight abrasion during operation. In order to keep abrasion as low as possible, the running partners are wetted with oil. Despite this lubrication, abrasion cannot be avoided. The abrasion combines with the oil and adheres to the components, especially the slideway. This Pollution is not only detrimental to the transmission of energy and data, but can also lead to a disruption in the insulation, resulting in operational interruptions.
  • the DE 298 07 515 U1 a rotating cleaning device for the continuous cleaning or keeping clean of contact-tapping grinding devices.
  • the device has a cleaning roller formed from cleaning rings, which is pressed against the sliding track.
  • the cleaning roller moves at a low speed, with any dirt that is present being embedded in the gaps in the cleaning channel.
  • a cleaning system for cleaning a slip ring is from the U.S. 2017/0093 109 A1 out.
  • the cleaning system includes a cleaning assembly configured to be positioned in contact with the slip ring.
  • the cleaning assembly can move along the slip ring for cleaning.
  • a control unit associated with the cleaning system is configured to control the operation of the cleaning assembly based on user input.
  • a device for cleaning a collector on an electric motor operated with carbon brushes also counts through the DE 10 215 214 A1 to the state of the art.
  • a cleaning module with a movable cleaning brush is arranged on the stator of the electric motor, which is pressed onto the collector by means of a spring and retracted by means of an electromagnet when an electrical voltage is applied to the electric motor.
  • the invention is based on the object of creating a slip ring transmitter with a functionally and operationally improved cleaning device.
  • a slip ring transmitter has a slip ring carrier and at least one slip ring arranged on the slip ring carrier and a contact module with contact elements.
  • the contact elements are in particular contact springs. However, other contact elements, for example carbon brushes, can also be used as contact elements.
  • the contact elements make contact with a sliding track of the slip ring.
  • a cleaning device for cleaning the sliding track.
  • the cleaning device has a cleaning brush with a brush lining that makes contact with the sliding track.
  • the cleaning brush absorbs the abrasion and ensures a thin, even film of oil on the grinding track. As a result, impairments caused by abrasion or dirt can be avoided. In particular, very good energy and/or data transmission between the slip ring or slip track and the contact elements is ensured.
  • the cleaning brush has a base body which has a back web and a brush holder.
  • the cleaning brush is fixed to a carrier plate of the contact module over the back web and connecting elements.
  • the cleaning brush extends across the width of the carrier board.
  • the brush holder projects transversely to the back web, in particular at right angles in the direction of the sliding track.
  • a compact design of the cleaning brush is hereby possible with efficient cleaning of the sliding track via the brush lining.
  • the brush facing is preferably formed from fibers, bristles or wires made from electrically non-conductive material.
  • the set of brushes can consist of different types of materials.
  • a brush trimming with fibers made of polyamide is considered to be particularly advantageous.
  • the cleaning brush is installed using fasteners. This can involve positive and/or non-positive connection means.
  • One type of fastener may be clips that snap into conformally designed openings or anvils. It is also possible to fix the cleaning brush in the system with screws, particularly on the carrier board of the contact module.
  • connection means can be screw connection elements, for example screws and threaded holes or nuts.
  • Latching connection means which connect the cleaning brush to the carrier board via the abutment piece, are also advantageously possible.
  • Such an abutment piece advantageously has a receptacle that is adapted to the width and thickness of the carrier board.
  • the abutment piece can be placed on the side of the carrier plate opposite the cleaning brush and encloses the carrier plate with the receptacle.
  • connecting means for example Threaded holes or assembly openings, provided for the passage or acceptance of screw fasteners.
  • figure 1 shows a section of a system with a slip ring assembly 1 installed there.
  • the slip ring transmitter 1 comprises a stationary machine part (stator) 2 and a rotating shaft (rotor) 3 on which a slip ring carrier 4 and slip rings 5 are arranged.
  • Contact modules 7 are mounted on support arms 6 of the stator 2 .
  • the contact modules 7 have contact elements in the form of contact springs 8 .
  • the contact elements are in sliding contact with sliding tracks 9 of the slip rings 5 .
  • electrical currents or energy and data are transmitted from the stationary machine part 2 to the shaft 3 or in the opposite direction.
  • a cleaning device 10 is provided for cleaning the sliding tracks 9 .
  • FIG 1 only one cleaning device 10 is shown. It goes without saying that each contact module 7 can be equipped with a cleaning device 10 .
  • a contact module 7 with mounted cleaning device 10 is in the figure 2 to see closer.
  • the cleaning device 10 is incorporated between the contact springs 8 .
  • the contact module 7 has a carrier board 11 and is fitted with conductor tracks 12 which are electrically conductively connected to the contact springs 8 mounted on the carrier board 11 .
  • the conductor tracks 12 lead to a plug contact 13, via which an electrical connection can be made.
  • Reinforced contact areas 14 are formed at the free ends of the contact springs 8, with which the contact springs 8 contact the sliding tracks 9 of the slip rings 5.
  • a cleaning device 10 has a cleaning brush 15 with a brush trimming 16 .
  • the cleaning brush 15 contacts one or more sliding tracks 6 with the brush stock 16.
  • the brush stock 16 consists of fibers 17 made of polyamide.
  • Each cleaning brush 15 has a base body 18 which has a back web 19 and a brush holder 20 .
  • the cleaning brush 15 is fixed under the carrier board 11 of a contact module 7 on the carrier board 11 via the rear web 19 and connecting elements 21 .
  • the cleaning brushes 15 in the representations of Figures 3 and 4 differ in the way they are defined. With the cleaning brush 15, as in figure 3 to recognize, 19 mounting openings 22 are provided for the implementation of screw connection means in the back web.
  • the cleaning brush 15 as shown in FIG figure 4 has spring clip elements 23 with hook projections 24 protruding from the back web 19 .
  • the brush holder 20 is transverse to the back web 19 at right angles to this in the direction of the sliding track 9 before.
  • the fibers 17 of the brush trimming 16 are in a single row, that is to say in one row. It is, however, also possible to provide several rows of fibers 17 in the brush facing 16 .
  • the cleaning device 10 is in the embodiment shown in FIG figure 2 fixed to the carrier board 11 of the contact module 7 by means of a yoke-like abutment piece 25 .
  • the abutment piece 25 extends beyond the longitudinal sides 26 of the carrier board 11 .
  • the abutment piece 25 is connected via connecting elements 21 in the form of screws with the Cleaning brush 15 braced over the back web 19.
  • the connecting elements 21 in the form of screws are inserted through openings in the abutment piece 25 into the assembly opening 22 in the back web 19 .
  • the abutment piece 25 has a receptacle 28 adapted to the width and thickness of the carrier board 11 . In this way, the abutment piece 25 can engage over the carrier board 11 in the area of the conductor tracks 12 and be braced with the cleaning brush 15 .
  • the cleaning brush 15 absorbs any abrasion in the area of the sliding tracks 9 via the brush trimming 16 with the fibers 17 contacting the sliding tracks 9 and ensures that the applied oil is distributed so that a thin, even oil film is ensured on the sliding track(s) 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Cleaning In General (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Friction Gearing (AREA)
  • Burglar Alarm Systems (AREA)

Description

Die Erfindung betrifft einen Schleifringübertrager gemäß den Merkmalen im Oberbegriff von Anspruch 1.The invention relates to a slip ring transmitter according to the features in the preamble of claim 1.

Schleifringübertrager sind elektromechanische Bauteile mit deren Hilfe Energie, Daten und/oder Steuersignale von einem rotierenden auf ein feststehendes Bauteil oder umgekehrt übertragen werden. Sie werden bei Anwendungen eingesetzt, die aufgrund ihrer Drehbewegung keine Energie- und Datenversorgung über eine ortsfest verlegte Leitung zulassen.Slip ring assemblies are electromechanical components that are used to transfer energy, data and/or control signals from a rotating to a stationary component or vice versa. They are used in applications that, due to their rotary motion, do not allow energy and data to be supplied via a permanently installed cable.

Ein Schleifringübertrager der üblichen Bauart weist einen Schleifringträger und zumindest einen auf dem Schleifringträger angeordneten Schleifring sowie ein Kontaktmodul mit Kontaktelementen, insbesondere Kontaktfedern auf. Ein Kontaktmodul wird fachterminologisch auch als Bürstenblock bezeichnet. Die Schleifringe und Kontaktelemente sind wesentlicher Bestandteil der Konstruktionen.A slip ring transmitter of the usual design has a slip ring carrier and at least one slip ring arranged on the slip ring carrier and a contact module with contact elements, in particular contact springs. A contact module is also referred to as a brush block in technical terms. The slip rings and contact elements are an essential part of the construction.

Die Kontaktelemente kontaktieren eine Schleifbahn des Schleifrings und bilden zusammen mit dieser einen Schleifkontakt. Aufgrund der Relativbewegung zwischen den Bauteilen kommt es im Betrieb kontinuierlich zu einem geringfügigen Abrieb. Um den Abrieb so gering wie möglich zu behalten, werden die Laufpartner mit Öl benetzt. Trotz dieser Schmierung lässt sich der Abrieb nicht vermeiden. Der Abrieb verbindet sich mit dem Öl und haftet auf den Bauteilen, insbesondere der Schleifbahn. Diese Verschmutzung ist nicht nur nachteilig für die Energie- und Datenübertragung, sondern kann auch zu einer Störung der Isolation führen, mit der Folge von Betriebsunterbrechungen.The contact elements make contact with a sliding track of the slip ring and together with this form a sliding contact. Due to the relative movement between the components, there is a continuous slight abrasion during operation. In order to keep abrasion as low as possible, the running partners are wetted with oil. Despite this lubrication, abrasion cannot be avoided. The abrasion combines with the oil and adheres to the components, especially the slideway. This Pollution is not only detrimental to the transmission of energy and data, but can also lead to a disruption in the insulation, resulting in operational interruptions.

Zur Behebung dieses Problems schlägt die DE 298 07 515 U1 eine rotierende Reinigungsvorrichtung vor zur kontinuierlichen Reinigung bzw. Reinhaltung von kontaktabgreifenden Schleifeinrichtungen. Die Vorrichtung weist eine aus Reinigungsringen gebildete Reinigungsrolle auf, welche gegen die Schleifbahn gedrückt wird. Die Reinigungsrolle bewegt sich mit geringer Drehzahl mit, wobei vorhandener Schmutz in die Zwischenräume der Reinigungsrinne eingebettet werden soll.To fix this problem, the DE 298 07 515 U1 a rotating cleaning device for the continuous cleaning or keeping clean of contact-tapping grinding devices. The device has a cleaning roller formed from cleaning rings, which is pressed against the sliding track. The cleaning roller moves at a low speed, with any dirt that is present being embedded in the gaps in the cleaning channel.

Bei dem aus der EP 1 105 041 B1 bekannten Vorschlag kommt ein mit einer Flüssigkeit befeuchteter Belag zur Anwendung, welcher gegen die Schleifbahn gedrückt wird, um Verschmutzungen und Abrieb zu entfernen.At the one from the EP 1 105 041 B1 known proposal, a covering moistened with a liquid is used, which is pressed against the sliding surface in order to remove dirt and abrasion.

Ein Reinigungssystem zum Reinigen eines Schleifrings geht aus der US 2017/0093 109 A1 hervor. Das Reinigungssystem umfasst eine Reinigungsbaugruppe, die so konfiguriert ist, dass sie im Kontakt mit dem Schleifring positioniert werden kann. Die Reinigungsbaugruppe kann sich zum Reinigen entlang des Schleifrings bewegen. Eine dem Reinigungssystem zugeordnete Steuereinheit ist dazu ausgelegt, um die Funktion der Reinigungsbaugruppe basierend auf Benutzereingaben zu steuern.A cleaning system for cleaning a slip ring is from the U.S. 2017/0093 109 A1 out. The cleaning system includes a cleaning assembly configured to be positioned in contact with the slip ring. The cleaning assembly can move along the slip ring for cleaning. A control unit associated with the cleaning system is configured to control the operation of the cleaning assembly based on user input.

Eine Vorrichtung zur Reinigung eines Kollektors an einem mit Kohlebürsten betriebenen Elektromotor zählt ferner durch die DE 10 215 214 A1 zum Stand der Technik. Am Stator des Elektromotors ist ein Reinigungsmodul mit einer beweglichen Reinigungsbürste angeordnet, die mittels einer Feder auf den Kollektor gedrückt und mittels eines Elektromagnetes beim Anliegen einer elektrischen Spannung am Elektromotor zurückgezogen wird.A device for cleaning a collector on an electric motor operated with carbon brushes also counts through the DE 10 215 214 A1 to the state of the art. A cleaning module with a movable cleaning brush is arranged on the stator of the electric motor, which is pressed onto the collector by means of a spring and retracted by means of an electromagnet when an electrical voltage is applied to the electric motor.

Der Erfindung liegt ausgehend vom Stand der Technik die Aufgabe zu Grunde, einen Schleifringübertrager mit einer funktional und betriebstechnisch verbesserten Reinigungsvorrichtung zu schaffen.Proceeding from the prior art, the invention is based on the object of creating a slip ring transmitter with a functionally and operationally improved cleaning device.

Die Lösung dieser Aufgabe besteht in einem Schleifringübertrager gemäß den Merkmalen von Anspruch 1.The solution to this problem consists in a slip ring transmitter according to the features of claim 1.

Vorteilhafte Ausgestaltung und Weiterbildung des erfindungsgemäßen Schleifringübertragers sind Gegenstand der abhängigen Ansprüche 2 bis 7.Advantageous design and development of the slip ring transmitter according to the invention are the subject matter of dependent claims 2 to 7.

Ein Schleifringübertrager weist einen Schleifringträger und zumindest einen auf dem Schleifringträger angeordneten Schleifring sowie ein Kontaktmodul mit Kontaktelementen auf. Bei den Kontaktelementen handelt es sich insbesondere um Kontaktfedern. Es können aber auch andere Kontaktelemente, beispielsweise Schleifkohlen, als Kontaktelemente zur Anwendung gelangen. Die Kontaktelemente kontaktieren eine Schleifbahn des Schleifrings.A slip ring transmitter has a slip ring carrier and at least one slip ring arranged on the slip ring carrier and a contact module with contact elements. The contact elements are in particular contact springs. However, other contact elements, for example carbon brushes, can also be used as contact elements. The contact elements make contact with a sliding track of the slip ring.

Zur Reinigung der Schleifbahn ist eine Reinigungsvorrichtung vorgesehen. Die Reinigungsvorrichtung weist eine Reinigungsbürste mit einem die Schleifbahn kontaktierenden Bürstenbesatz auf.A cleaning device is provided for cleaning the sliding track. The cleaning device has a cleaning brush with a brush lining that makes contact with the sliding track.

Die Reinigungsbürste nimmt den Abrieb auf und sorgt für einen dünnen gleichmäßigen Ölfilm auf der Schleifbahn. Hierdurch können Beeinträchtigungen durch Abrieb bzw. Verschmutzungen vermieden werden. Insbesondere ist eine sehr gute Energie- und/oder Datenübertragung zwischen Schleifring bzw. Schleifbahn und den Kontaktelementen sichergestellt.The cleaning brush absorbs the abrasion and ensures a thin, even film of oil on the grinding track. As a result, impairments caused by abrasion or dirt can be avoided. In particular, very good energy and/or data transmission between the slip ring or slip track and the contact elements is ensured.

Erfindungsgemäß ist vorgesehen, dass die Reinigungsbürste einen Grundkörper besitzt, welcher einen Rückensteg und einen Bürstenträger aufweist. Die Reinigungsbürste ist über dem Rücksteg und Verbindungselemente an einer Trägerplatte des Kontaktmoduls festgelegt.According to the invention it is provided that the cleaning brush has a base body which has a back web and a brush holder. The cleaning brush is fixed to a carrier plate of the contact module over the back web and connecting elements.

Auf diese Weise ist eine stabile Montage innerhalb des Schleifringübertragersystems möglich unter Nutzung des vorhandenen Bauraums. Montage und Demontage der Reinigungsbürste sind einfach. Ein gegebenenfalls erforderlicher Austausch der Reinigungsbürste ist problemlos möglich. Auch eine Nachrüstung vorhandener Schleifringübertrager mit einer erfindungsgemäßen Reinigungsvorrichtung ist möglich.In this way, stable assembly within the slip ring assembly system is possible using the available space. Assembly and disassembly of the cleaning brush are easy. If necessary, the cleaning brush can be replaced without any problems. It is also possible to retrofit existing slip ring transmitters with a cleaning device according to the invention.

Vorzugsweise erstreckt sich die Reinigungsbürste quer über die Breite der Trägerplatine.Preferably, the cleaning brush extends across the width of the carrier board.

Ferner ist von Vorteil, wenn der Bürstenträger quer zum Rückensteg, insbesondere rechtwinklig in Richtung zur Schleifbahn vorsteht. Hierdurch ist eine kompakte Bauform der Reinigungsbürste möglich mit einer effizienten Reinigung der Schleifbahn über den Bürstenbesatz.It is also advantageous if the brush holder projects transversely to the back web, in particular at right angles in the direction of the sliding track. A compact design of the cleaning brush is hereby possible with efficient cleaning of the sliding track via the brush lining.

Der Bürstenbesatz ist vorzugsweise aus Fasern, Borsten oder Drähten aus elektrisch nicht leitendem Werkstoff gebildet.The brush facing is preferably formed from fibers, bristles or wires made from electrically non-conductive material.

Grundsätzlich kann der Bürstensatz aus verschiedenartigen Werkstoffen bestehen. Als besonders vorteilhaft wird ein Bürstenbesatz mit Fasern aus Polyamid angesehen.In principle, the set of brushes can consist of different types of materials. A brush trimming with fibers made of polyamide is considered to be particularly advantageous.

Die Montage der Reinigungsbürste erfolgt über Verbindungsmittel. Hierbei kann es sich um form- und/oder kraftschlüssige Verbindungsmittel handeln. Eine Art von Verbindungsmitteln können Clips sein, welche in konform gestaltete Öffnungen oder Gegenhalter eingerastet werden können. Auch eine schraubtechnische Festlegung der Reinigungsbürste im System ist möglich, insbesondere an der Trägerplatine des Kontaktmoduls.The cleaning brush is installed using fasteners. This can involve positive and/or non-positive connection means. One type of fastener may be clips that snap into conformally designed openings or anvils. It is also possible to fix the cleaning brush in the system with screws, particularly on the carrier board of the contact module.

In diesem Zusammenhang wird eine Ausgestaltung als vorteilhaft angesehen, bei der ein jochartiges Widerlagerstück zur Anwendung gelangt, welches zur Festlegung der Reinigungsbürste mit Verbindungsmitteln zusammenwirkt. Verbindungsmittel können Schraubverbindungselemente sein, beispielsweise Schrauben und Gewindebohrungen oder Muttern. Auch rastende Verbindungsmittel, welche die Reinigungsbürste mit der Trägerplatine über das Widerlagerstück verbinden, sind vorteilhaft möglich.In this context, an embodiment is considered advantageous in which a yoke-like abutment piece is used, which interacts with connecting means to fix the cleaning brush. Connection means can be screw connection elements, for example screws and threaded holes or nuts. Latching connection means, which connect the cleaning brush to the carrier board via the abutment piece, are also advantageously possible.

Ein solches Widerlagerstück weist vorteilhafter Weise eine auf die Breite und die Dicke der Trägerplatine angepasste Aufnahme auf. Das Widerlagerstück kann auf der der Reinigungbürste gegenüberliegenden Seite der Trägerplatte aufgelegt werden und umschließt hierbei die Trägerplatine mit der Aufnahme. Jeweils in den Endbereichen des Widerlagerstücks sind Verbindungsmittel, beispielsweise Gewindebohrungen oder Montageöffnungen, zur Durchführung bzw. Aufnahme von Schraubverbindungsmitteln vorgesehen.Such an abutment piece advantageously has a receptacle that is adapted to the width and thickness of the carrier board. The abutment piece can be placed on the side of the carrier plate opposite the cleaning brush and encloses the carrier plate with the receptacle. In each case in the end areas of the abutment piece are connecting means, for example Threaded holes or assembly openings, provided for the passage or acceptance of screw fasteners.

Die Erfindung ist nachfolgend anhand von Zeichnungen näher beschrieben. Es zeigen:

Figur 1
einen erfindungsgemäßen Schleifringübertrager in einer perspektivischen Darstellungsweise;
Figur 2
ebenfalls in perspektivischer Darstellungsweise ein Kontaktmodul mit montierter Reinigungsvorrichtung;
Figur 3
eine erste Ausgestaltung einer Reinigungsbürste und
Figur 4
eine zweite Ausführungsform einer Reinigungsbürste.
The invention is described in more detail below with reference to drawings. Show it:
figure 1
a slip ring transmitter according to the invention in a perspective representation;
figure 2
also in a perspective view, a contact module with mounted cleaning device;
figure 3
a first embodiment of a cleaning brush and
figure 4
a second embodiment of a cleaning brush.

Figur 1 zeigt einen Ausschnitt aus einer Anlage mit einem dort installierten Schleifringübertrager 1. figure 1 shows a section of a system with a slip ring assembly 1 installed there.

Der Schleifringübertrager 1 umfasst einen stationären Maschinenteil (Stator) 2 und eine rotierende Welle (Rotor) 3 auf welcher ein Schleifringträger 4 und Schleifringe 5 angeordnet sind. An Tragarmen 6 des Stators 2 sind Kontaktmodule 7 montiert. Die Kontaktmodule 7 weisen Kontaktelemente in Form von Kontaktfedern 8 auf. Die Kontaktelemente stehen mit Schleifbahnen 9 der Schleifringe 5 in Schleifkontakt. Je nach Anwendungsfall werden elektrische Ströme bzw. Energie und Daten von dem stationären Maschinenteil 2 auf die Welle 3 oder in umgekehrter Richtung übertragen.The slip ring transmitter 1 comprises a stationary machine part (stator) 2 and a rotating shaft (rotor) 3 on which a slip ring carrier 4 and slip rings 5 are arranged. Contact modules 7 are mounted on support arms 6 of the stator 2 . The contact modules 7 have contact elements in the form of contact springs 8 . The contact elements are in sliding contact with sliding tracks 9 of the slip rings 5 . Depending on the application, electrical currents or energy and data are transmitted from the stationary machine part 2 to the shaft 3 or in the opposite direction.

Zur Reinigung der Schleifbahnen 9 ist eine Reinigungsvorrichtung 10 vorgesehen. In der Figur 1 ist nur eine Reinigungsvorrichtung 10 dargestellt. Es versteht sich, dass jedes Kontaktmodul 7 mit einer Reinigungsvorrichtung 10 ausgerüstet sein kann.A cleaning device 10 is provided for cleaning the sliding tracks 9 . In the figure 1 only one cleaning device 10 is shown. It goes without saying that each contact module 7 can be equipped with a cleaning device 10 .

Ein Kontaktmodul 7 mit montierter Reinigungsvorrichtung 10 ist in der Figur 2 näher zu erkennen. Die Reinigungsvorrichtung 10 ist zwischen den Kontaktfedern 8 eingegliedert.A contact module 7 with mounted cleaning device 10 is in the figure 2 to see closer. The cleaning device 10 is incorporated between the contact springs 8 .

Das Kontaktmodul 7 besitzt eine Trägerplatine 11 und ist mit Leiterbahnen 12 bestückt, welche mit den an der Trägerplatine 11 montierten Kontaktfedern 8 elektrisch leitend verbunden sind. Die Leiterbahnen 12 führen zu einem Steckkontakt 13, über welchen eine elektrische Verbindung hergestellt werden kann. An den freien Enden der Kontaktfedern 8 sind verstärkte Kontaktbereiche 14 ausgebildet, mit welchen die Kontaktfedern 8 die Schleifbahnen 9 der Schleifringe 5 kontaktieren.The contact module 7 has a carrier board 11 and is fitted with conductor tracks 12 which are electrically conductively connected to the contact springs 8 mounted on the carrier board 11 . The conductor tracks 12 lead to a plug contact 13, via which an electrical connection can be made. Reinforced contact areas 14 are formed at the free ends of the contact springs 8, with which the contact springs 8 contact the sliding tracks 9 of the slip rings 5.

Eine Reinigungsvorrichtung 10 weist eine Reinigungsbürste 15 mit einem Bürstenbesatz 16 auf. Mit dem Bürstenbesatz 16 kontaktiert die Reinigungsbürste 15 eine oder mehrere Schleifbahnen 6. Der Bürstenbesatz 16 besteht aus Fasern 17 aus Polyamid.A cleaning device 10 has a cleaning brush 15 with a brush trimming 16 . The cleaning brush 15 contacts one or more sliding tracks 6 with the brush stock 16. The brush stock 16 consists of fibers 17 made of polyamide.

Zwei Ausgestaltungen einer Reinigungsbürste 15 sind in den Figuren 3 und 4 dargestellt. Jede Reinigungsbürste 15 besitzt einen Grundkörper 18, der einen Rückensteg 19 und einen Bürstenträger 20 aufweist. Über den Rückensteg 19 und Verbindungselemente 21 ist die Reinigungsbürste 15 unter der Trägerplatine 11 eines Kontaktmoduls 7 an der Trägerplatine 11 festgelegt. Die Reinigungsbürsten 15 in den Darstellungen der Figuren 3 und 4 unterscheiden sich durch die Art der Festlegung. Bei der Reinigungsbürste 15, wie in Figur 3 zu erkennen, sind im Rückensteg 19 Montageöffnungen 22 zur Durchführung von Schraubverbindungsmitteln vorgesehen.Two configurations of a cleaning brush 15 are in the Figures 3 and 4 shown. Each cleaning brush 15 has a base body 18 which has a back web 19 and a brush holder 20 . The cleaning brush 15 is fixed under the carrier board 11 of a contact module 7 on the carrier board 11 via the rear web 19 and connecting elements 21 . The cleaning brushes 15 in the representations of Figures 3 and 4 differ in the way they are defined. With the cleaning brush 15, as in figure 3 to recognize, 19 mounting openings 22 are provided for the implementation of screw connection means in the back web.

Die Reinigungsbürste 15 gemäß der Darstellung von Figur 4 weist vom Rückensteg 19 abstehende Federklippelemente 23 mit Hakenvorsprüngen 24 auf.The cleaning brush 15 as shown in FIG figure 4 has spring clip elements 23 with hook projections 24 protruding from the back web 19 .

Der Bürstenträger 20 steht quer zum Rückensteg 19 rechtwinklig gegenüber diesem in Richtung zur Schleifbahn 9 vor. Die Fasern 17 des Bürstenbesatzes 16 sind einreihig, also in einer Reihe ausgeführt. Möglich ist es allerdings auch, mehrere Reihen von Fasern 17 im Bürstenbesatz 16 vorzusehen.The brush holder 20 is transverse to the back web 19 at right angles to this in the direction of the sliding track 9 before. The fibers 17 of the brush trimming 16 are in a single row, that is to say in one row. It is, however, also possible to provide several rows of fibers 17 in the brush facing 16 .

Die Reinigungsvorrichtung 10 ist in der Ausführung gemäß der Darstellung von Figur 2 mittels eines jochartigen Widerlagerstücks 25 an der Trägerplatine 11 des Kontaktmoduls 7 festgelegt. Das Widerlagerstück 25 erstreckt sich bis über die Längsseiten 26 der Trägerplatine 11 hinaus. In den Endbereichen 27 ist das Widerlagerstück 25 über Verbindungselemente 21 in Form von Schrauben mit der Reinigungsbürste 15 über den Rückensteg 19 verspannt. Hierzu sind die Verbindungselemente 21 in Form von Schrauben durch Öffnungen im Widerlagerstück 25 in die Montageöffnung 22 im Rückensteg 19 eingeführt.The cleaning device 10 is in the embodiment shown in FIG figure 2 fixed to the carrier board 11 of the contact module 7 by means of a yoke-like abutment piece 25 . The abutment piece 25 extends beyond the longitudinal sides 26 of the carrier board 11 . In the end regions 27, the abutment piece 25 is connected via connecting elements 21 in the form of screws with the Cleaning brush 15 braced over the back web 19. For this purpose, the connecting elements 21 in the form of screws are inserted through openings in the abutment piece 25 into the assembly opening 22 in the back web 19 .

Das Widerlagerstück 25 weist eine auf die Breite und die Dicke der Trägerplatine 11 angepasste Aufnahme 28 auf. Auf diese Weise kann das Widerlagerstück 25 die Trägerplatine 11 im Bereich der Leiterbahnen 12 übergreifen und mit der Reinigungsbürste 15 verspannt werden.The abutment piece 25 has a receptacle 28 adapted to the width and thickness of the carrier board 11 . In this way, the abutment piece 25 can engage over the carrier board 11 in the area of the conductor tracks 12 and be braced with the cleaning brush 15 .

Über den Bürstenbesatz 16 mit den die Schleifbahnen 9 kontaktierenden Fasern 17 nimmt die Reinigungsbürste 15 etwaigen Abrieb im Bereich der Schleifbahnen 9 auf und sorgt für eine Verteilung von aufgebrachtem Öl, so dass ein dünner, gleichmäßiger Ölfilm auf der bzw. den Schleifbahnen 9 gewährleistet ist.The cleaning brush 15 absorbs any abrasion in the area of the sliding tracks 9 via the brush trimming 16 with the fibers 17 contacting the sliding tracks 9 and ensures that the applied oil is distributed so that a thin, even oil film is ensured on the sliding track(s) 9.

Bezugszeichen:References:

1 -1 -
Schleifringübertragerslip ring transmitter
2 -2 -
Maschinenteil (Stator)machine part (stator)
3 -3 -
Welle (Rotor)shaft (rotor)
4 -4 -
Schleifringträgerslip ring carrier
5 -5 -
Schleifringslip ring
6 -6 -
TragarmBeam
7 -7 -
Kontaktmodulcontact module
8 -8th -
Kontaktfedercontact spring
9 -9 -
Schleifbahngrinding track
10 -10 -
Reinigungsvorrichtungcleaning device
11 -11 -
Trägerplatinecarrier board
12 -12 -
Leiterbahntrace
13 -13 -
Steckkontaktplug contact
14 -14 -
Kontaktbereichcontact area
15 -15 -
Reinigungsbürstecleaning brush
16 -16 -
Bürstenbesatzbrush trimmings
17 -17 -
Fasernfibers
18 -18 -
Grundkörperbody
19 -19 -
Rückenstegback bar
20 -20 -
Bürstenträgerbrush holder
21 -21 -
Verbindungselementfastener
22 -22 -
Montageöffnungmounting hole
23 -23 -
Federklippelementspring clip element
24 -24 -
Hakenvorsprunghook protrusion
25 -25 -
Widerlagerstückabutment piece
26 -26 -
Längsseite von 11long side of 11
27 -27 -
Endbereichend area
28 -28 -
Aufnahmerecording

Claims (7)

  1. Slip ring assembly, which has a slip ring carrier (4) and at least one slip ring (5) arranged thereon and a contact module (7) having contact elements, in particular contact springs (8), wherein the contact elements (8) contact a slideway (9) of the slip ring (5) and wherein a cleaning device (10) is provided for cleaning the slideway (9) and has a cleaning brush (15) with a brush filling (16) contacting the slideway (9), characterised in that the cleaning brush (15) has a base body (18) having a rear web (19) and a brush carrier (20), and the cleaning brush (15) is secured to a carrier board (11) of the contact module (7) via the rear web (19) and connecting elements (21).
  2. Slip ring assembly according to claim 1, characterised in that the cleaning brush (15) extends transversely over the width of the carrier board (11).
  3. Slip ring assembly according to claim 1 or 2, characterised in that the brush carrier (20) protrudes transversely to the rear web (19), in particular at a right angle, in the direction of the slideway (9).
  4. Slip ring assembly according to any of claims 1 to 3, characterised in that a counter-bearing piece (25) is provided which cooperates with the connecting elements (21) to fix the cleaning brush (15) in position.
  5. Slip ring assembly according to claim 4, characterised in that the counter-bearing piece (25) has a receptacle (28) adapted to the width and thickness of the carrier board (11).
  6. Slip ring assembly according to any of claims 1 to 5, characterised in that the brush filling (16) is formed of fibres (17), bristles or wire.
  7. Slip ring assembly according to any of claims 1 to 6, characterised in that the brush filling (16) consists of polyamide.
EP19768701.5A 2018-08-21 2019-08-20 Slip ring assembly Active EP3841641B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018120326.8A DE102018120326B3 (en) 2018-08-21 2018-08-21 A slip ring transmission
PCT/DE2019/100751 WO2020038530A1 (en) 2018-08-21 2019-08-20 Slip ring assembly

Publications (2)

Publication Number Publication Date
EP3841641A1 EP3841641A1 (en) 2021-06-30
EP3841641B1 true EP3841641B1 (en) 2022-06-22

Family

ID=67953505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19768701.5A Active EP3841641B1 (en) 2018-08-21 2019-08-20 Slip ring assembly

Country Status (6)

Country Link
US (1) US11611184B2 (en)
EP (1) EP3841641B1 (en)
CN (1) CN112534658B (en)
DE (1) DE102018120326B3 (en)
ES (1) ES2924627T3 (en)
WO (1) WO2020038530A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019217864B3 (en) * 2019-11-20 2020-12-03 Zf Friedrichshafen Ag Shaft grounding device for a shaft of a drive train of a motor vehicle

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439114A (en) * 1943-09-16 1948-04-06 First Ind Corp Electrical apparatus collector conditioning
US5416572A (en) * 1994-01-03 1995-05-16 Xerox Corporation Cleaning apparatus for an electrophotographic printing machine
DE29807515U1 (en) 1998-04-25 1998-07-09 Mamerow, Bernd, 22339 Hamburg Rotating cleaning device for continuous cleaning or keeping clean slip ring devices
JP2003502137A (en) 1999-06-22 2003-01-21 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Slip ring cleaning device and cleaning method
DE10215214A1 (en) 2002-04-06 2003-10-16 Thomas Lasmann Device for cleaning collectors for electric motor operated with carbon brushes, has cleaning module on stator with movable cleaning brush pressed onto collector by spring and retracted by electromagnet
CN104218419B (en) * 2013-05-29 2017-09-22 中航光电科技股份有限公司 Contact spring and the contact element of electric brush using the contact spring
JP6187788B2 (en) * 2013-10-15 2017-08-30 株式会社安川電機 Rotating electric machine and method for changing cable drawing direction of rotating electric machine
US9991661B2 (en) * 2015-09-30 2018-06-05 General Electric Company Cleaning system for slip ring of medical imaging apparatus
CN206401690U (en) * 2017-01-20 2017-08-11 湖南衡岳中药饮片有限公司 A kind of carbon brush holder for prepared slices of Chinese crude drugs drying plant

Also Published As

Publication number Publication date
DE102018120326B3 (en) 2019-12-19
EP3841641A1 (en) 2021-06-30
CN112534658A (en) 2021-03-19
CN112534658B (en) 2021-10-22
ES2924627T3 (en) 2022-10-10
US20210242646A1 (en) 2021-08-05
US11611184B2 (en) 2023-03-21
WO2020038530A1 (en) 2020-02-27

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