DE1058320B - Magnetic particle brake - Google Patents
Magnetic particle brakeInfo
- Publication number
- DE1058320B DE1058320B DES37617A DES0037617A DE1058320B DE 1058320 B DE1058320 B DE 1058320B DE S37617 A DES37617 A DE S37617A DE S0037617 A DES0037617 A DE S0037617A DE 1058320 B DE1058320 B DE 1058320B
- Authority
- DE
- Germany
- Prior art keywords
- magnetic
- magnetic particle
- shaft
- coil body
- particle brake
- 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
- 239000006249 magnetic particle Substances 0.000 title claims description 12
- 239000000843 powder Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
- F16D57/002—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders comprising a medium with electrically or magnetically controlled internal friction, e.g. electrorheological fluid, magnetic powder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D37/00—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
- F16D37/02—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D37/00—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
- F16D2037/002—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive characterised by a single substantially axial gap in which the fluid or medium consisting of small particles is arranged
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Description
Magnetpulverbremse Bei Magnetpulverbremsen bzw. -kupplungen ist zwischen den beiden miteinander zu kuppelnden Teilen ein Luftspalt vorhanden, der mit einem magnetisierbaren Pulver gefüllt ist, das gegegebenenfalls mit einer Flüssigkeit, z. B. Öl, gemischt sein kann. Dieses Pulver kann durch ein von einem Elektromagneten erzeugtes Magnetfeld in eine mehr oder weniger starre Verbindung zwischen den beiden zu kuppelnden Teilen umgewandelt werden. Bisher sind solche Magnetpulverbremsen meist in der Weise ausgebildet, daß der Magnetkörper in einem feststehenden Gehäuse rotiert, welches den magnetischen Rückschluß für den rotierenden Elektromagneten bildet. Bei diesen bekannten Vorrichtungen muß die Stromzufuhr zu der Erregerspule des Elektromagneten über Schleifringe erfolgen, was jedoch leicht zu Störungen Anlaß geben kann und deshalb unerwünscht ist.Magnetic particle brake With magnetic particle brakes or clutches, there is between the two parts to be coupled to each other an air gap is present, which with a magnetizable powder is filled, if necessary with a liquid, z. B. oil, can be mixed. This powder can be driven by an electromagnet generated magnetic field into a more or less rigid connection between the two can be converted into coupling parts. So far, such magnetic particle brakes are usually designed in such a way that the magnetic body is in a stationary housing rotates, which is the magnetic return path for the rotating electromagnet forms. In these known devices, the power must be supplied to the excitation coil of the electromagnet via slip rings, which can easily lead to malfunctions can give and is therefore undesirable.
Um das zu vermeiden, hat man ferner vorgeschlagen, die Magnetpulverbremse so auszubilden, daß der Magnetspulenkörper feststehend angeordnet ist, während der den magnetischen Rückfluß bildende Teil auf der abzubremsenden Welle befestigt ist und sich innerhalb des Magnetkörpers befindet. Die Erfindung zeigt nun eine verbesserte Ausbildung einer solchen Magnetpulverbremse.In order to avoid this, it has also been proposed to use the magnetic particle brake to train so that the solenoid body is fixedly arranged during the the magnetic flux forming part is attached to the shaft to be braked and is located inside the magnetic body. The invention now shows an improved Formation of such a magnetic powder brake.
Bei der Magnetpulverbremse gemäß der Erfindung ist die abzubremsende Welle, z. B. die Welle eines Elektromotors, durch eine zentrische Bohrung des an dem Wellenlager in an sich bekannter Weise befestigten Magnetspulenkörpers hindurchgeführt und trägt an ihrem durch den Magnetspulenkörper hindurchragenden Ende ein den magnetischen Rückfluß bildendes, den Spulenkörper glockenförmig umfassendes Gehäuse. Dadurch wird der Vorteil erreicht, daß die Bremskraft mit einem verhältnismäßig großen Hebelarm auf die abzubremsende Welle wirkt und infolgedessen ein starkes Bremsmoment ausübt. Ferner kann die abzubremsende Masse gegenüber dem feststehenden Magnetkörper sehr klein gehalten werden, weil sie den Magnetspulenkörper von außen her umfaßt. Da beim Abbremsen nur eine verhältnismäßig kleine Masse zum Stillstand gebracht werden muß, so wird ferner der Vorteil erreicht, daß der Bremsvorgang nur sehr kurze Zeit dauert. Die ganze Magnetpulverbremse ist dabei ferner von einem Gehäuse umschlossen, das aus einer Grundplatte und einer auf diese aufgesetzte Gehäusekappe bestehen kann.In the case of the magnetic particle brake according to the invention, the brake is to be braked Wave, e.g. B. the shaft of an electric motor, through a central bore of the passed through the shaft bearing in a conventional manner fastened magnet coil body and carries a magnetic at its end protruding through the magnet coil body Backflow-forming housing encompassing the bobbin in the shape of a bell. Through this the advantage is achieved that the braking force with a relatively large lever arm acts on the shaft to be braked and consequently exerts a strong braking torque. Furthermore, the mass to be braked can be very much relative to the stationary magnet body be kept small because it includes the magnet coil body from the outside. There when braking, only a relatively small mass can be brought to a standstill must, the advantage is also achieved that the braking process only for a very short time take. The entire magnetic particle brake is also enclosed by a housing, which consist of a base plate and a housing cap placed on it can.
In der Zeichnung ist ein Ausführungsbeispiel einer solchen gemäß der Erfindung ausgebildeten Magnetpulverbremse im Längsschnitt dargestellt. 1 ist das Lagerschild eines Elektromotors, indem die Motorwelle 2 mittels eines Kugellagers 3 gelagert ist. Das Kugellager 3 ist durch die beiden Lagerkappen 4 und 5 abgedeckt, die durch mehrere Schraubenbolzen 6 miteinander verbunden sind. Die äußere Lagerkappe 5 ist mit einem ringförmigen Flanschansatz versehen, der von einer Gehäusekappe 7 überdeckt ist, die mit der Kappe 5 durch zwei oder mehr Schrauben 8 mit dem Außenrand des flanschartigen Ansatzes der äußeren Lagerkappe 5 fest verbunden ist. In das Innere der Gehäusekappe 7 reicht das verlängerte Ende der Motorwelle 2 hinein, und zwar ist das Wellenende durch eine zentrale Bohrung des Magnetspulenkörpers 9 hindurchgeführt, auf dem die Magnetspule 10 angebracht ist. Der Magnetspulenkörper 9 ist durch Schraubenbolzen 11 mit dem äußeren Lagerdeckel 5 fest verbunden. Der Magnetspulenkörper 9 ist ferner von einem glockenförmigen Gehäuse umgeben, das aus dem ringförmigen Teil 12 und der mit ihr verschraubten Scheibe 13 besteht, die auf dem Ende der Welle 2 sitzt und auf ihr gegen Drehung durch den Keil 14 gesichert ist. In dem Luftspalt zwischen dem Magnetspulenkörper 9 und dem ringförmigen Teil 12 befindet sich das Magnetpulver 15, das eine mehr oder weniger starre Verbindung zwischen den beiden genannten Teilen herstellt, wenn durch die Spule 10 ein mehr oder weniger starker Strom hindurchgeleitet wird. Die Stromzuführung zu der Spule 10 kann hier, da die Spule 10 feststehend angeordnet ist, ohne Verwendung von Schleifringen durch eine einfache Zuleitung unmittelbar erfolgen.In the drawing, an embodiment of such according to the Invention trained magnetic particle brake shown in longitudinal section. 1 is that Bearing shield of an electric motor, in which the motor shaft 2 by means of a ball bearing 3 is stored. The ball bearing 3 is covered by the two bearing caps 4 and 5, which are connected to one another by several screw bolts 6. The outer bearing cap 5 is provided with an annular flange extension from a housing cap 7 is covered with the cap 5 by two or more screws 8 with the outer edge of the flange-like approach of the outer bearing cap 5 is firmly connected. In the The extended end of the motor shaft 2 extends inside the housing cap 7, and although the shaft end is passed through a central hole in the magnet coil body 9, on which the solenoid 10 is attached. The solenoid bobbin 9 is bolted 11 firmly connected to the outer bearing cover 5. The solenoid bobbin 9 is also surrounded by a bell-shaped housing, which consists of the annular part 12 and the disc 13 screwed to it, which sits on the end of the shaft 2 and is secured against rotation on it by the wedge 14. In the air gap between the magnet coil body 9 and the annular part 12 is the magnet powder 15, which is a more or less rigid connection between the two parts mentioned produces when a more or less strong current is passed through the coil 10 will. The power supply to the coil 10 can here, since the coil 10 is stationary is arranged without the use of slip rings through a simple supply line take place immediately.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES37617A DE1058320B (en) | 1954-02-13 | 1954-02-13 | Magnetic particle brake |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES37617A DE1058320B (en) | 1954-02-13 | 1954-02-13 | Magnetic particle brake |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1058320B true DE1058320B (en) | 1959-05-27 |
Family
ID=7482630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES37617A Pending DE1058320B (en) | 1954-02-13 | 1954-02-13 | Magnetic particle brake |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1058320B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1248008A1 (en) * | 2001-04-04 | 2002-10-09 | Delphi Technologies, Inc. | Magnetorheological fluid stopper at electric motor |
CN102829104A (en) * | 2012-08-01 | 2012-12-19 | 林智勇 | Magnetic fluid drum brake |
CN107725641A (en) * | 2016-08-12 | 2018-02-23 | 巨大机械工业股份有限公司 | Magnetorheological fluid rotary resistance device |
WO2020016492A1 (en) * | 2018-07-17 | 2020-01-23 | Psa Automobiles Sa | Braking method and system provided with a magnetic multiple-disk clutch |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2617507A (en) * | 1949-12-02 | 1952-11-11 | Gen Electric | Magnetic fluid mixture brake |
GB689138A (en) * | 1951-01-18 | 1953-03-18 | British Thomson Houston Co Ltd | Improvements relating to magnetic fluid clutches |
FR1027664A (en) * | 1949-11-14 | 1953-05-13 | Thomson Houston Comp Francaise | Magnetic clutch-brake system |
-
1954
- 1954-02-13 DE DES37617A patent/DE1058320B/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1027664A (en) * | 1949-11-14 | 1953-05-13 | Thomson Houston Comp Francaise | Magnetic clutch-brake system |
US2617507A (en) * | 1949-12-02 | 1952-11-11 | Gen Electric | Magnetic fluid mixture brake |
GB689138A (en) * | 1951-01-18 | 1953-03-18 | British Thomson Houston Co Ltd | Improvements relating to magnetic fluid clutches |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1248008A1 (en) * | 2001-04-04 | 2002-10-09 | Delphi Technologies, Inc. | Magnetorheological fluid stopper at electric motor |
US6619444B2 (en) | 2001-04-04 | 2003-09-16 | Delphi Technologies, Inc. | Magnetorheological fluid stopper at electric motor |
CN102829104A (en) * | 2012-08-01 | 2012-12-19 | 林智勇 | Magnetic fluid drum brake |
CN107725641A (en) * | 2016-08-12 | 2018-02-23 | 巨大机械工业股份有限公司 | Magnetorheological fluid rotary resistance device |
CN107725641B (en) * | 2016-08-12 | 2019-08-02 | 巨大机械工业股份有限公司 | Magnetorheological fluid rotary resistance device |
WO2020016492A1 (en) * | 2018-07-17 | 2020-01-23 | Psa Automobiles Sa | Braking method and system provided with a magnetic multiple-disk clutch |
FR3084122A1 (en) * | 2018-07-17 | 2020-01-24 | Psa Automobiles Sa | BRAKING METHOD AND SYSTEM WITH MAGNETIC MULTIDISCLE CLUTCH |
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