CH354833A - Slip rings for electrical machines - Google Patents

Slip rings for electrical machines

Info

Publication number
CH354833A
CH354833A CH354833DA CH354833A CH 354833 A CH354833 A CH 354833A CH 354833D A CH354833D A CH 354833DA CH 354833 A CH354833 A CH 354833A
Authority
CH
Switzerland
Prior art keywords
rings
slip
electrical machines
slip rings
support
Prior art date
Application number
Other languages
German (de)
Inventor
Voll Siegfried
Original Assignee
Siemens Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of CH354833A publication Critical patent/CH354833A/en

Links

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

Landscapes

  • Polishing Bodies And Polishing Tools (AREA)

Description

  

      Schleifringkörper        für    elektrische Maschinen    Die     Erfindung    bezieht sich auf einen Schleifrind       körper    für elektrische Maschinen mit Nabe und auf  Tragringen aus Stahl aufgeschrumpften Schleifringen.  Bei bekannten derartigen     Schleifringkörpern    ist zwi  schen je     zwei    Ringen eine Isolierplatte aus Hart  papier angeordnet. Derartige     Schleifringkörper    sind  in der Herstellung     verhältnismässig    teuer.

   Es     sind     auch     Schleifringkörper    bekannt, bei denen die Schleif  ringe mit der     Näbe    durch Giessharz verbunden sind.  Bei dieser Ausführung ergeben sich jedoch Her  stellungsschwierigkeiten, die auf das starke     Schwind-          mass    des Giessharzes zurückzuführen sind.  



  Die     Erfindung    beseitigt diese Schwierigkeiten. Er  findungsgemäss sind die auf die Nabe aufgeschrumpften  Tragringe und die auf die Tragringe aufgeschrumpften  Schleifringe beidseitig in Giessharz eingebettet.  



  Die Erfindung soll anhand des in der Zeichnung  dargestellten Ausführungsbeispiels näher erläutert wer  den. Sie zeigt einen     Schleifringkörper    im     Längsschnitt.     



  Auf die Nabe 1 sind unter Zwischenlage einer  Isolierung 2 die Tragringe 3 aus Stahl aufgeschrumpft.  Auf diese sind wiederum die Schleifringe 4 aus nicht  rostendem Material aufgeschrumpft. Die Schleif-    ringe 4 sind breiter als die Tragringe 3. Die Hohl  räume     zwischen    den Tragringen sind mit Giessharz 5       ausgefüllt,    das zugleich die Isolation 6 zwischen den       Schleifringen    bildet. Auf den beiden Stirnseiten des       Schleifringkörpers    sind' die Schleif- und Tragringe  durch Giessharz 7 abgedeckt.  



  Die Herstellung der erfindungsgemässen Schleif  ringe ist     verhältnismässig    billig. Da das Giessharz nur  zur Isolation und nicht     als        Verbindungsmittel    heran  gezogen ist, können durch das starke     Schwindmass     keine Schwierigkeiten auftreten.



      Slip ring body for electrical machines The invention relates to a grinding wheel body for electrical machines with a hub and slip rings shrunk onto support rings made of steel. In known slip ring bodies of this type, an insulating plate made of hard paper is arranged between every two rings. Such slip ring bodies are relatively expensive to manufacture.

   There are also slip ring bodies known in which the grinding rings are connected to the hub by casting resin. In this design, however, there are manufacturing difficulties that can be attributed to the strong shrinkage of the cast resin.



  The invention overcomes these difficulties. According to the invention, the support rings shrunk onto the hub and the slip rings shrunk onto the support rings are embedded in cast resin on both sides.



  The invention will be explained in more detail using the embodiment shown in the drawing who the. It shows a slip ring body in longitudinal section.



  The support rings 3 made of steel are shrunk onto the hub 1 with the interposition of insulation 2. The slip rings 4 made of rustproof material are in turn shrunk onto these. The slip rings 4 are wider than the support rings 3. The hollow spaces between the support rings are filled with casting resin 5, which at the same time forms the insulation 6 between the slip rings. The slip and support rings are covered by casting resin 7 on the two end faces of the slip ring body.



  The production of the slip rings according to the invention is relatively cheap. Since the casting resin is only used for insulation and not as a connecting means, no difficulties can arise due to the strong shrinkage.

Claims (1)

PATENTANSPRUCH Schleifringkörper für elektrische Maschinen mit Nabe und auf Tragringen aus Stahl aufgeschrumpften Schleifringen, dadurch gekennzeichnet, dass die Trag- und Schleifringe beidseitig in Giessharz eingebettet sind. UNTERANSPRUCH Schleifringkörper nach Patentanspruch, dadurch gekennzeichnet, dass die Tragringe schmäler sind als die Schleifringe. PATENT CLAIM Slip ring body for electrical machines with hub and slip rings shrunk onto support rings made of steel, characterized in that the support and slip rings are embedded in cast resin on both sides. SUBCLAIM Slip ring assembly according to claim, characterized in that the support rings are narrower than the slip rings.
CH354833D 1957-02-22 1958-02-14 Slip rings for electrical machines CH354833A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE354833X 1957-02-22

Publications (1)

Publication Number Publication Date
CH354833A true CH354833A (en) 1961-06-15

Family

ID=6289798

Family Applications (1)

Application Number Title Priority Date Filing Date
CH354833D CH354833A (en) 1957-02-22 1958-02-14 Slip rings for electrical machines

Country Status (1)

Country Link
CH (1) CH354833A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346321A (en) * 1978-02-27 1982-08-24 Robert Bosch Gmbh Slip ring retainer mechanism
EP0262833A2 (en) * 1986-09-22 1988-04-06 Onoda Cement Company, Ltd. Thermal fixing roller for use in a copying machine and method for manufacturing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346321A (en) * 1978-02-27 1982-08-24 Robert Bosch Gmbh Slip ring retainer mechanism
EP0262833A2 (en) * 1986-09-22 1988-04-06 Onoda Cement Company, Ltd. Thermal fixing roller for use in a copying machine and method for manufacturing the same
EP0262833A3 (en) * 1986-09-22 1989-04-19 Onoda Cement Company, Ltd. Thermal fixing roller for use in a copying machine and method for manufacturing the same

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