DE1109260B - Closed, surface-cooled electrical machine with built-in electromagnetic brake - Google Patents

Closed, surface-cooled electrical machine with built-in electromagnetic brake

Info

Publication number
DE1109260B
DE1109260B DES62283A DES0062283A DE1109260B DE 1109260 B DE1109260 B DE 1109260B DE S62283 A DES62283 A DE S62283A DE S0062283 A DES0062283 A DE S0062283A DE 1109260 B DE1109260 B DE 1109260B
Authority
DE
Germany
Prior art keywords
brake
machine
closed
electrical machine
built
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.)
Pending
Application number
DES62283A
Other languages
German (de)
Inventor
Ludwig Eichhorn
Siegfried Voll
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 DES62283A priority Critical patent/DE1109260B/en
Priority to CH64160A priority patent/CH374745A/en
Priority to GB1035860A priority patent/GB907932A/en
Priority to BE588982A priority patent/BE588982A/en
Publication of DE1109260B publication Critical patent/DE1109260B/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/102Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
    • H02K7/1021Magnetically influenced friction brakes
    • H02K7/1023Magnetically influenced friction brakes using electromagnets
    • H02K7/1025Magnetically influenced friction brakes using electromagnets using axial electromagnets with generally annular air gap

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Motor Or Generator Frames (AREA)

Description

Geschlossene, oberflächengekühlte elektrische Maschine mit angebauter elektromagnetischer Bremse Die Erfindung bezieht sich auf eine geschlossene, oberflächengekühlte elektrische Maschine mit angebauter elektromagnetischer Bremse, die eine auf der Welle sitzende umlaufende Bremsscheibe und ein die Erregerwicklung tragendes, am Maschinengehäuse befestigtes Magnetgehäuse hat, wobei die Bremsscheibe auf der der Maschine abgekehrten Seite des Magnetgehäuses angeordnet ist. Bei solchen Maschinen hat man bisher das Magnetgehäuse mit dem Lagerschild unmittelbar zusammengebaut. Das hat den Nachteil, daß bei häufigem Bremsen das auf der Bremsseite liegende Maschinenlager durch die in der Bremse auftretende Reibungswärme stark erhitzt wird.Closed, surface-cooled electrical machine with attached electromagnetic brake The invention relates to a closed, surface-cooled electric machine with built-in electromagnetic brake, one on the Rotating brake disc seated on the shaft and one on which the exciter winding is supported Machine housing has attached magnet housing, with the brake disc on the Machine facing away from the magnet housing is arranged. With machines like that so far, the magnet housing has been assembled directly with the end shield. This has the disadvantage that, with frequent braking, the machine bearing on the braking side is strongly heated by the frictional heat generated in the brake.

Diese nachteilige Wirkung kann vermieden werden, wenn erfindungsgemäß zwischen dem Magnetgehäuse und dem bremsseitigen Lagerschild ein Zwischenraum angeordnet ist, der in dem Weg wenigstens eines Teiles des Maschinenaußenkühlluftstromes -liegt. Es ist zwar bei elektrischen Maschinen mit angebauter Bremse bekannt, zwischen dem Lagerschild und der Bremsvorrichtung einen Zwischenraum anzuordnen, jedoch nur bei solchen Maschinen, bei denen die Bremsscheibe auf der dem Lagerschild der Maschine zugekehrten Seite der Bremse liegt. Da die Bremsscheibe umläuft, ergibt sich der Zwischenraum zwangläufig. Es ist in diesem Fall naheliegend, die Bremsscheibe als Lüfter auszubilden und den Zwischenraum als Zuführungskanal für den Außenkühlluftstrom zu benutzen.This adverse effect can be avoided if according to the invention A gap is arranged between the magnet housing and the end shield on the brake side is located in the path of at least a portion of the machine's external cooling air flow. Although it is known in electrical machines with a built-in brake, between the To arrange a space between the end shield and the braking device, but only when such machines where the brake disc is on the end shield of the machine facing side of the brake. Since the brake disc rotates, the result is Space inevitably. In this case it is obvious to use the brake disc as Train fan and the space as a supply channel for the outside cooling air flow to use.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. Sie zeigt den bremsseitigen Teil eines Antriebsmotors für eine Drehstromladewinde zum Teil im Längsschnitt.An embodiment of the invention is shown in the drawing. It shows the brake-side part of a drive motor for a three-phase charging winch partly in longitudinal section.

Die Welle 1 einer elektrischen Maschine ist auf der Bremsseite über das Kugellager 2 in dem Lagerschild 3 gelagert, der an dem Ständergehäuse 4 befestigt ist. Das Ständergehäuse hat in radialer Umfangsrichtung verlaufende Kühlrippen 5 und wird von einem nicht dargestellten Lüfter in Umfangsrichtung von einem Außenkühlluftstrom umspült. An Augen 15 des Lagerschildes 3 ist das Gehäuse 6 einer elektromagnetischen Bremse 7 befestigt, deren die Erregerwicklung 8 aufnehmendes Magnetgehäuse 9 dem Lagerschild 3 zugekehrt ist. Auf dem Wellenende sitzt die einen Bremsklotz 10 tragende Bremsscheibe 11. Nach außen ist die Bremse mittels eines Deckels 12 abgeschlossen, der an einem das Ständergehäuse 4 umgebenden und einen Luftstutzen 13 bildenden Mantel 14 befestigt ist. Zwischen der Lagerwand des Lagerschildes 3 und der lagerschildseitigen Wand des Magnetgehäuses 9 ergibt sich ein Zwischenraum 16, der im Wege des Außenkühlluftstromes liegt. Zur Vergrößerung der Kühlwirkung ist der Lagerschild 3 mit Kühlrippen 17 versehen.The shaft 1 of an electrical machine is mounted on the braking side via the ball bearing 2 in the end shield 3, which is attached to the stator housing 4. The stator housing has cooling fins 5 running in the radial circumferential direction and a flow of external cooling air flows around it in the circumferential direction by a fan (not shown). The housing 6 of an electromagnetic brake 7 is fastened to the eyes 15 of the end shield 3, the magnet housing 9 of which, which accommodates the field winding 8, faces the end shield 3. The brake disk 11 , which carries a brake pad 10, is seated on the shaft end. The brake is closed to the outside by means of a cover 12 which is fastened to a jacket 14 which surrounds the stator housing 4 and forms an air nozzle 13. Between the bearing wall of the bearing plate 3 and the wall of the magnet housing 9 on the side of the bearing plate there is an intermediate space 16 which lies in the path of the external cooling air flow. To increase the cooling effect, the end shield 3 is provided with cooling ribs 17.

Dadurch, daß der Außenkühlluftstrom zwischen dem bremsseitigen Lager der Maschine und der Bremse hindurchströmen kann, ist eine zusätzliche Erwärmung des Lagers durch die Reibungswärme der Bremse verhindert und außerdem noch die Kühlung des Lagers verbessert.Because the outside cooling air flow between the brake-side bearing the machine and the brake can flow through, is an additional heating of the bearing is prevented by the frictional heat of the brake and also the cooling of the camp improved.

Claims (2)

PATENTANSPRÜCHE: 1. Geschlossene, oberflächengekühlte elektrische Maschine mit angebauter elektromagnetischer Bremse, die eine auf der Welle sitzende umlaufende Bremsscheibe und ein die Erregerwicklung tragendes, am Maschinengehäuse befestigtes Magnetgehäuse hat, wobei die Bremsscheibe auf der der Maschine abgekehrten Seite des Magnetgehäuses angeordnet ist, dadurch gekennzeichnet, daß zwischen dem Magnetgehäuse und dem bremsseitigen Lagerschild ein Zwischenraum angeordnet ist, der in dem Weg wenigstens eines Teiles des Maschinenaußenkühlluftstromes liegt. PATENT CLAIMS: 1. Closed, surface-cooled electrical Machine with built-on electromagnetic brake, one on the shaft revolving brake disc and one that carries the excitation winding on the machine housing has attached magnet housing, with the brake disc facing away from the machine Side of the magnet housing is arranged, characterized in that between the A gap is arranged between the magnet housing and the end shield on the brake side, which lies in the path of at least part of the machine's external cooling air flow. 2. Elektrische Maschine nach Anspruch 1, dadurch gekennzeichnet, daß der Lagerschild in radialer Richtung verlaufende Kühlrippen an der Außenfläche hat.2. Electrical machine according to claim 1, characterized in that the end shield has cooling fins running in the radial direction on the outer surface.
DES62283A 1959-03-24 1959-03-24 Closed, surface-cooled electrical machine with built-in electromagnetic brake Pending DE1109260B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DES62283A DE1109260B (en) 1959-03-24 1959-03-24 Closed, surface-cooled electrical machine with built-in electromagnetic brake
CH64160A CH374745A (en) 1959-03-24 1960-01-21 Closed, surface-cooled electrical machine with built-in electromagnetic brake
GB1035860A GB907932A (en) 1959-03-24 1960-03-23 An enclosed surface-cooled electric machine having an electromagnetic brake
BE588982A BE588982A (en) 1959-03-24 1960-03-24 Electric machine with incorporated brake.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES62283A DE1109260B (en) 1959-03-24 1959-03-24 Closed, surface-cooled electrical machine with built-in electromagnetic brake

Publications (1)

Publication Number Publication Date
DE1109260B true DE1109260B (en) 1961-06-22

Family

ID=7495502

Family Applications (1)

Application Number Title Priority Date Filing Date
DES62283A Pending DE1109260B (en) 1959-03-24 1959-03-24 Closed, surface-cooled electrical machine with built-in electromagnetic brake

Country Status (4)

Country Link
BE (1) BE588982A (en)
CH (1) CH374745A (en)
DE (1) DE1109260B (en)
GB (1) GB907932A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1061281A2 (en) * 1999-06-17 2000-12-20 Lucas Industries Limited Brake assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3983426B2 (en) 1999-07-29 2007-09-26 三菱電機株式会社 AC generator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549217A (en) * 1949-09-27 1951-04-17 Warner Electric Brake & Clutch Friction brake cooling system
DE882271C (en) * 1951-07-27 1953-07-27 Deutsche Bundesbahn Alternating drive with sliding armature motor and compressed air motor
GB750684A (en) * 1953-09-14 1956-06-20 Singer Mfg Co Dynamo-electric machine brake and clutch
US2850124A (en) * 1953-03-27 1958-09-02 Damag Zug G M B H Brake with resilient friction disc

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549217A (en) * 1949-09-27 1951-04-17 Warner Electric Brake & Clutch Friction brake cooling system
DE882271C (en) * 1951-07-27 1953-07-27 Deutsche Bundesbahn Alternating drive with sliding armature motor and compressed air motor
US2850124A (en) * 1953-03-27 1958-09-02 Damag Zug G M B H Brake with resilient friction disc
GB750684A (en) * 1953-09-14 1956-06-20 Singer Mfg Co Dynamo-electric machine brake and clutch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1061281A2 (en) * 1999-06-17 2000-12-20 Lucas Industries Limited Brake assembly
EP1061281A3 (en) * 1999-06-17 2001-01-03 Lucas Industries Limited Brake assembly
US7641026B1 (en) 1999-06-17 2010-01-05 Goodrich Control Systems Limited Brake assembly

Also Published As

Publication number Publication date
BE588982A (en) 1960-09-26
GB907932A (en) 1962-10-10
CH374745A (en) 1964-01-31

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