DE302383C - - Google Patents
Info
- Publication number
- DE302383C DE302383C DENDAT302383D DE302383DA DE302383C DE 302383 C DE302383 C DE 302383C DE NDAT302383 D DENDAT302383 D DE NDAT302383D DE 302383D A DE302383D A DE 302383DA DE 302383 C DE302383 C DE 302383C
- Authority
- DE
- Germany
- Prior art keywords
- ring
- brushes
- notches
- movement
- wear
- 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.)
- Active
Links
- 238000000227 grinding Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000001138 Tears Anatomy 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
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
- Motor Or Generator Current Collectors (AREA)
Description
KAISERLICHESIMPERIAL
-PATENTAMT.-PATENT OFFICE.
Erfahrungsgemäß treten bei Schleifringen, insbesondere bei Ringen für hohe Umfangsgeschwindigkeit und Strombelastung, Schwierigkeiten im Betriebe dadurch auf, daß an der Schleiffläche rauhe Stellen, Flecken entstehen, die nicht nur erhöhte Reibungsarbeit und demzufolge größere Erwärmung, sondern auch erhöhten Verschleiß an Ring- und Bürstenmaterial verursachen. Außerdem bewirken diese rauhen Stellen mitunter schädliche Funkenbildung unter den Bürsten, die ebenfalls die Erwärmung und den Verschleiß erhöht.Experience has shown that slip rings occur, especially rings for high peripheral speed and current load, difficulties in the company due to the fact that rough spots, stains appear on the grinding surface, the not only increased frictional work and consequently greater heating, but also increased wear on the ring and brush material cause. In addition, these rough spots sometimes cause harmful sparking under the brushes, which also increases heating and wear.
Systematisch durchgeführte Versuche und Überlegungen haben ergeben, daß die Fleckenbildung durch elektrische und mechanische Vorgänge unter den Bürsten, und zwar zum Teil durch Stromverdrängung in den Kontaktflächen (Wirbelstromeffekte), also durch ungleichmäßige Belastung der Kontaktfläche, zum Teil durch Ungleichmäßigkeiten im Kontakt zwischen Bürsten und Ring infolge Bewegung und Abnutzung verursacht wird.Systematically carried out tests and considerations have shown that the staining by electrical and mechanical processes under the brushes, namely for Partly through current displacement in the contact surfaces (eddy current effects), i.e. through uneven Load on the contact surface, partly due to irregularities in the contact between the brush and the ring as a result of movement and wear and tear.
Erfindungsgemäß wurde als Mittel gegen diese Störungen die Anbringung von Einkerbungen an der Lauffläche, quer zur Bewegungsrichtung erkannt. Dadurch werden die Wirbelstrombahnen unterschnitten und dieAccording to the invention, the creation of notches was used as a means of counteracting these disorders recognized on the running surface, transverse to the direction of movement. As a result, the eddy current paths are undercut and the
, Unterteilung der Kontaktfläche bewirkt gleichmäßiges Verhalten, wobei die durch Verschleiß unter den Bürsten sich sammelnden Teilchen des Ring- oder Bürstenmaterials von den Kanten der Einkerbungen abgestreift und abgeschleudert werden., Subdivision of the contact surface produces an even surface Behavior, with the particles collecting under the brushes as a result of wear of the ring or brush material is stripped from the edges of the notches and thrown off will.
Eine ähnliche Anordnung ist bereits vorgeschlagen worden, um einem Stromwender, der teils aus stromleitenden Stegen, teils aus einem isolierenden Ringstück zusammengesetzt ist, eine gleichmäßige Oberflächenbeschaffenheit zu geben.A similar arrangement has already been proposed to provide a commutator that is composed partly of conductive bars, partly of an insulating ring piece, to give an even surface finish.
Fig. ι und 2 zeigen einige Ausführungsbeispiele der Erfindung. Es bedeutet 1 den Schleifring, 2 die Bürste, 3 die Einkerbungen an der Schleiffläche. Dabei kann die Anordnung der Ringe beliebig sein/ die Bürsten können auf einer Zylinderfläche oder Stirnfläche des Ringes schleifen, die Einkerbungen können in verschiedener Form und Entfernung, senkrecht oder schräg zur Bewegungsrichtung angebracht sein.Fig. Ι and 2 show some embodiments of the invention. It means 1 den Slip ring, 2 the brush, 3 the notches on the grinding surface. The arrangement can The rings can be arbitrary / the brushes can be on a cylindrical surface or an end surface grinding of the ring, the notches can be of different shape and distance, be attached perpendicular or at an angle to the direction of movement.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE302383C true DE302383C (en) |
Family
ID=556191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT302383D Active DE302383C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE302383C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2837671A (en) * | 1956-02-16 | 1958-06-03 | Gen Electric | Commutator bar construction |
US3226666A (en) * | 1962-10-08 | 1965-12-28 | Kollmorgen Corp | Slip ring unit with debris-collecting means |
DE3316866A1 (en) * | 1983-05-07 | 1984-11-08 | Maschinenfabrik Reinhausen Gebrüder Scheubeck GmbH & Co KG, 8400 Regensburg | Contact arrangement for load selectors of stepping transformers |
-
0
- DE DENDAT302383D patent/DE302383C/de active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2837671A (en) * | 1956-02-16 | 1958-06-03 | Gen Electric | Commutator bar construction |
US3226666A (en) * | 1962-10-08 | 1965-12-28 | Kollmorgen Corp | Slip ring unit with debris-collecting means |
DE3316866A1 (en) * | 1983-05-07 | 1984-11-08 | Maschinenfabrik Reinhausen Gebrüder Scheubeck GmbH & Co KG, 8400 Regensburg | Contact arrangement for load selectors of stepping transformers |
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