DE1109260B - Closed, surface-cooled electrical machine with built-in electromagnetic brake - Google Patents
Closed, surface-cooled electrical machine with built-in electromagnetic brakeInfo
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
- H02K7/1021—Magnetically influenced friction brakes
- H02K7/1023—Magnetically influenced friction brakes using electromagnets
- H02K7/1025—Magnetically 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)
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)
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)
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)
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 |
-
1959
- 1959-03-24 DE DES62283A patent/DE1109260B/en active Pending
-
1960
- 1960-01-21 CH CH64160A patent/CH374745A/en unknown
- 1960-03-23 GB GB1035860A patent/GB907932A/en not_active Expired
- 1960-03-24 BE BE588982A patent/BE588982A/en unknown
Patent Citations (4)
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)
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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