CH354833A - Slip rings for electrical machines - Google Patents
Slip rings for electrical machinesInfo
- 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
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)
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)
| 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 |
-
1958
- 1958-02-14 CH CH354833D patent/CH354833A/en unknown
Cited By (3)
| 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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