DE839530C - Device for the automatic shutdown of sliding contact pieces, especially made of coal or the like, for electrical machines and apparatus - Google Patents

Device for the automatic shutdown of sliding contact pieces, especially made of coal or the like, for electrical machines and apparatus

Info

Publication number
DE839530C
DE839530C DEP34207A DEP0034207A DE839530C DE 839530 C DE839530 C DE 839530C DE P34207 A DEP34207 A DE P34207A DE P0034207 A DEP0034207 A DE P0034207A DE 839530 C DE839530 C DE 839530C
Authority
DE
Germany
Prior art keywords
contact piece
contact
sliding contact
piece
sleeve
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.)
Expired
Application number
DEP34207A
Other languages
German (de)
Inventor
Otto Belohlavek
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.)
Siemens AG
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
Priority to DEP34207A priority Critical patent/DE839530C/en
Application granted granted Critical
Publication of DE839530C publication Critical patent/DE839530C/en
Expired legal-status Critical Current

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
    • H01R39/58—Means structurally associated with the current collector for indicating condition thereof, e.g. for indicating brush wear

Landscapes

  • Motor Or Generator Current Collectors (AREA)

Description

Bei schleifenden Kontakten, wie beispielsweise bei Kohlebürsten von Motoren, ergaben sich oft infolge nicht rechtzeitiger Auswechselung der Kohlebürsten Schwierigkeiten. Bei unzulässig weiter Abnutzung der Kohlebürsten schleifen metallische Teile, z. B. die Druckfedern der Kohlebürsten, unmittelbar als Kontaktübertrager auf dem Kollektor. Hierdurch tritt ein starkes Feuern auf, und die Oberfläche des Kollektors bzw, die Wicklungen des Motors können beschädigt werden.With sliding contacts, such as with carbon brushes from Motors, often resulted from not replacing the carbon brushes in time Trouble. If the carbon brushes continue to wear unacceptably, metallic ones grind Parts, e.g. B. the compression springs of the carbon brushes, directly as a contact transmitter on the collector. This causes a strong fire and the surface of the The collector or the motor windings can be damaged.

Durch die Erfindung werden diese Nachteile dadurch beseitigt, daß die vorzugsweise in einer Hülse angeordnete Zuleitung zum Schleifkontaktstück durch die Relativbewegung zwischen Hülse und Schleifkontaktstück unterbrochen wird, sobald die Abnutzung des Schleifkontaktstückes das zulässige Maß überschreitet. Zweckmäßig ist in der innerhalb der Hülse verlaufenden Zuleitung, zum Schleifkontaktstück eine Unterbrechungsstelle angeordnet, die im Laufe der durch Abnutzung des Kontaktstückes hervorgerufenen Relativbewegung zwischen Hülse und Schleifenkontaktstück durch Festhalten des einen Kontaktes dieser Unterbrechungsstelle unterbrochen wird. Zweckmäßig ist die Kontaktdruckfeder in zwei hintereinandergeschaltete Federn aufgeteilt, die durch ein Isolierstück derart voneinander getrennt sind, daß das Isolierstück mit dem Kontakt der Unterbrechungsstelle beim Erreichen der kleinsten nutzbaren Länge des Kontaktstückes gegen einen Anschlag, Absatz od. dgl. zur Anlage kommt. Bei weiterer Abnutzung des Kontaktstückes wird die elektrische Verbindung zum Kontaktstück unterbrochen.The invention eliminates these disadvantages in that the feed line, which is preferably arranged in a sleeve, to the sliding contact piece the relative movement between the sleeve and sliding contact piece is interrupted as soon as the wear of the sliding contact exceeds the permissible level. Appropriate is in the supply line running inside the sleeve, to the sliding contact piece Interruption point arranged in the course of wear of the contact piece caused relative movement between sleeve and loop contact piece by holding of one contact of this interruption point is interrupted. Is expedient the contact pressure spring is divided into two springs connected in series, which are carried out by an insulating piece are separated from each other in such a way that the insulating piece with the Contact of the interruption point when the smallest usable length of the Contact piece against a stop, paragraph or the like. Comes to rest. With further If the contact piece is worn, the electrical connection to the contact piece is interrupted.

In den Fig. i und 2 ist die Erfindung an dem Beispiel eines Rohrbürstedhalters erläutert.In Figs. I and 2, the invention is based on the example of a tubular brush holder explained.

In dem Bürstenhalter i ist die Kohle 2 unter Druck der Federn 3, 4 angeordnet. Zwischen den Federn 3, .4 ist eine Kontaktscheibe 5 und eine Isolierscheibe 6 angeordnet. Sobald die Kohle 2, wie insbesondere aus Fig. i zu erkennen ist, die kleinste nutzbare Länge erreicht hat, kommt die Isolierscheibe 6 gegen einen Absatz 7 im Bürstenhalter i zur Auflage, und es wird die Wirkung der Feder 3 ausgeschaltet und der Kontaktdruck nun durch die Feder 4 bewirkt. Tritt nun eine weitere Abnutzung der Kohle 2 ein, so wird durch die Fe-. der 4 der Kontaktstift 8 von der Kontaktscheibe 5 gelöst und die elektrische Verbindung, welche über die Litze 9 hergestellt ist, unterbrochen. Der Motor kommt hierdurch zum Stillstand bzw. wird nicht mehr anlaufen, und eine Erneuerung der Kohle 2 ist erforderlich.In the brush holder i, the carbon 2 is under pressure from the springs 3, 4 arranged. Between the springs 3, .4 is a contact washer 5 and an insulating washer 6 arranged. As soon as the coal 2, as can be seen in particular from FIG Has reached the smallest usable length, the insulating washer 6 comes against a shoulder 7 in the brush holder i to rest, and the effect of the spring 3 is switched off and the contact pressure is now caused by the spring 4. Now there is another wear and tear of the coal 2, then the Fe-. the 4 of the contact pin 8 of the contact disk 5 released and the electrical connection, which is made via the strand 9, interrupted. As a result, the motor comes to a standstill or will no longer start, and renewal of the coal 2 is required.

Claims (3)

PATENTANSPRCCHE: i. Vorrichtung zur selbsttätigen Abschaltung von in einer Hülse geführten, unter Federdruck stehenden schleifenden Kontaktstücken, insbesondere aus Kohle od. dgl., für elektrische Maschinen und Apparate, dadurch gekennzeichnet, daß die z. B. innerhalb der Hülse verlaufende Zuleitung zum Schleifkontaktstück durch die im Laufe der durch Abnutzung des Kontaktstückes hervorgerufene Relativbewegung zwischen Hülse und Kontaktstück unterbrochen wird, sobald die Abnutzung das zulässige Maß überschreitet. CLAIMS: i. Device for the automatic shutdown of sliding contact pieces guided in a sleeve and under spring pressure, in particular from coal or the like, for electrical machines and apparatus, thereby characterized in that the z. B. running inside the sleeve supply line to the sliding contact piece due to the relative movement caused by wear of the contact piece between the sleeve and contact piece is interrupted as soon as the wear is the permissible Exceeds dimension. 2. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß in der Zuleitung zum Schleifkontaktstück eine Unterbrechungsstelle angeordnet ist, die durch die Relativbewegung zwischen Hülse und Schleifkontaktstück durch Festhalten des einen Kontaktes dieser Unterbrechungsstelle unterbrochen wird. 2. Apparatus according to claim i, characterized in that in an interruption point is arranged in the feed line to the sliding contact piece, that by the relative movement between the sleeve and sliding contact piece by holding of one contact of this interruption point is interrupted. 3. Vorrichtung nach Anspruch i, gekennzeichnet durch die Aufteilung der Kontaktdruckfeder in zwei ^hintereinandergeschaltete Federn, die durch ein Isolierstück derart voneinander getrennt sind, daß das Isolierstück mit dem Kontakt der Unterbrechungsstelle bei Erreichen der kleinsten nutzbaren Länge des Kontaktstückes gegen einen Absatz, Anschlag od. dgl. zur Auflage kommt und hierdurch bei weiterer Abnutzung des Kontaktstückes die elektrische Verbindung zu dem Kontaktstück unterbrochen wird.3. Device according to claim i, characterized by the division of the contact pressure spring into two ^ springs connected in series, which are separated from each other by an insulating piece are separated that the insulating piece with the contact of the interruption point at Reaching the smallest usable length of the contact piece against a shoulder, stop or the like comes to rest and thereby with further wear of the contact piece the electrical connection to the contact piece is interrupted.
DEP34207A 1949-02-15 1949-02-15 Device for the automatic shutdown of sliding contact pieces, especially made of coal or the like, for electrical machines and apparatus Expired DE839530C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP34207A DE839530C (en) 1949-02-15 1949-02-15 Device for the automatic shutdown of sliding contact pieces, especially made of coal or the like, for electrical machines and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP34207A DE839530C (en) 1949-02-15 1949-02-15 Device for the automatic shutdown of sliding contact pieces, especially made of coal or the like, for electrical machines and apparatus

Publications (1)

Publication Number Publication Date
DE839530C true DE839530C (en) 1952-05-23

Family

ID=7373596

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP34207A Expired DE839530C (en) 1949-02-15 1949-02-15 Device for the automatic shutdown of sliding contact pieces, especially made of coal or the like, for electrical machines and apparatus

Country Status (1)

Country Link
DE (1) DE839530C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075210B (en) * 1953-01-17 1960-02-11 Zahnradfabrik Friedrichshafen Ak tiengesellschaft, Friedrichshafen Bracket for the power supply brushes of a rotating slip ring
DE2724754A1 (en) * 1977-06-01 1978-12-14 Siemens Ag Carbon brush holder with screw=on cap - has U=shaped contact strip with convex yoke gripping sides of guide bush
DE2729430A1 (en) * 1977-06-29 1979-02-22 Siemens Ag PIPE BRUSH HOLDER
DE102013213389A1 (en) * 2013-07-09 2015-01-15 Schleifring Und Apparatebau Gmbh Slip ring brushes with mechanically decoupled wear indicator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075210B (en) * 1953-01-17 1960-02-11 Zahnradfabrik Friedrichshafen Ak tiengesellschaft, Friedrichshafen Bracket for the power supply brushes of a rotating slip ring
DE2724754A1 (en) * 1977-06-01 1978-12-14 Siemens Ag Carbon brush holder with screw=on cap - has U=shaped contact strip with convex yoke gripping sides of guide bush
DE2729430A1 (en) * 1977-06-29 1979-02-22 Siemens Ag PIPE BRUSH HOLDER
DE102013213389A1 (en) * 2013-07-09 2015-01-15 Schleifring Und Apparatebau Gmbh Slip ring brushes with mechanically decoupled wear indicator

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