DE550717C - Electromotive drive device with speed control through adjustable eddy current brakes - Google Patents

Electromotive drive device with speed control through adjustable eddy current brakes

Info

Publication number
DE550717C
DE550717C DEL78184D DEL0078184D DE550717C DE 550717 C DE550717 C DE 550717C DE L78184 D DEL78184 D DE L78184D DE L0078184 D DEL0078184 D DE L0078184D DE 550717 C DE550717 C DE 550717C
Authority
DE
Germany
Prior art keywords
eddy current
drive device
speed control
current brakes
electromotive drive
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
DEL78184D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DEL78184D priority Critical patent/DE550717C/en
Application granted granted Critical
Publication of DE550717C publication Critical patent/DE550717C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/28—Speed controlling, regulating, or indicating
    • 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
    • H02K7/104—Structural association with clutches, brakes, gears, pulleys or mechanical starters with eddy-current brakes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/04—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors by means of a separate brake

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Description

Elektromdttorische Antriebsvorrichtung mit Drehzahlregelung durch einstellbare Wirbelstrombremsen . ' Bei Antriebsmotoren für Sprechapparate oder ähnliche Apparate war es bisher üblich, zwecks Regelung der Plättentellergeschwindigkeit einen in seiner Wirkung regelbaren Zentrifugalregler zu verwenden. Weiterhin ist auch die Verwendung von Wirbelstrombremsen als Geschwindigkeitsregler in der Weise bekannt, daß unter Anordnung besonderer einstellbarer Magrietsysteme eine Regelung durch Wirbelstrombremsung erfolgt.Elektromdttorische drive device with speed control by adjustable eddy current brakes. '' With drive motors for speech sets or Similar devices have hitherto been used to regulate the speed of the platter to use an adjustable centrifugal regulator. Furthermore is also the use of eddy current brakes as a speed controller in the way known that with the arrangement of special adjustable Magrietsysteme a regulation takes place by eddy current braking.

Die zuvor erwähnte Anwendung eines ZentrifugalregIers zur Regelung der PlattenteIlerdrehzahl hat den Nachteil, daß die Regler in der Herstellung teuer sind und im Betrieb sowie während des Transports gegen Stoß und Schlag sehr empfindlich sind. Die zweite beschriebene Art der Drehzahlrege-Iung ist insofern nachteilig, als neben dem Magnetsystem des Antriebsmotors noch ein weiteres Magnetsystem für die Wirbelstrom= bremsscheibe notwendig war, wodurch diese Bauart umständlich und teuer wurde.The previously mentioned use of a centrifugal regulator for regulation the disk divider speed has the disadvantage that the regulators are expensive to manufacture are very sensitive to shock and impact during operation and during transport are. The second type of speed control described is disadvantageous in that than in addition to the magnet system of the drive motor, another magnet system for the eddy current = brake disc was necessary, making this design cumbersome and became expensive.

Gegenstand der Erfindung ist nun eine elektromotorische Antriebsvorrichtung, bei der innerhalb des gegenüber dem Rotor verlängerten Ständers eine auf der Rotorachse verschiebbar angeordnete Wirbelstrombremsscheibe angebracht ist, durch deren Verschiebung die Drehzahl des Motors geregelt wird. Dieser Wirbelstromregler ist einfach in der Herstellung, nimmt einen geringen Raum ein und ist. gegen mechanische Einflüsse, Stöße usw. unempfindlich..The subject of the invention is now an electromotive drive device, in the case of the inside of the stator, which is lengthened in relation to the rotor, one on the rotor axis displaceably arranged eddy current brake disc is attached by their displacement the speed of the motor is controlled. This eddy current regulator is simple in that Manufacturing, occupies little space and is. against mechanical influences, Impact, etc. insensitive ..

Auf der Zeichnung ist ein Ausführungsbeispiel im Längsschnitt dargestellt.In the drawing, an embodiment is shown in longitudinal section.

Auf der Motorwelle a sitzt in bekannter Weise der in dem Ständer c umlaufende Anker b. Entsprechend der Erfindung ist nun auf der Rotorwelle a unter Vermittlung einer Führungsbüchse d eine Scheibe e, f axial verschiebbar gelagert, die mit der über den Anker b hinaus verlängerten Ständerwicklung c eineWirbelstrombremse bildet, die um so wirksamer ist, j e weiter die Scheibe e, f in den Ständer hineingeschoben wird. Das Verschieben der Scheibe e, f erfolgt durch ein von außen zu bedienendes Hebelwerk.The armature b rotating in the stator c sits in a known manner on the motor shaft a. According to the invention is now on the rotor shaft a through the intermediary of a guide bush d, a disc e, f mounted axially displaceably, with the b via the armature addition elongated stator winding c an eddy current brake forms, which is more effective for the further the disc e, f is pushed into the stand. The sliding of the disc e, f is carried out by means of a lever mechanism that can be operated from the outside.

Die Wirkungsweise ist folgende: Sobald die Scheibe e, f auf der Welle a so weit verschoben ist, daß sie in den verlängerten Teil des Ständers c hineinragt, werden bei geschlossenem Stromkreis durch Schneiden von Kraftlinien durch die Scheibe e, f Wirbelströme erzeugt, die bremsend auf den Anker b wirken. Je tiefer nun die Scheibe e, f in den Ständer c mit Hilfe des Hebelwerks eingeschoben wird (Pfeilrichtung I), desto mehr Wirbelströme werden in der Scheibe e, f hervorgerufen und um so größer ist die Bremswirkung auf den Anker, so daß die Drehzahl des Motors und der Plattentellerachse sinkt. Ein Verschieben der Scheibe in entgegengesetzter Richtung (Pfeilrichtung II) hat ein Nachlassen der Bremswirkung, d. h. ein Steigen der Drehzahl zur Folge. Das Schneckengetriebe g, h vermittelt in bekannter Weise den Antrieb des Plattentellers.The mode of operation is as follows: As soon as the disk e, f is moved so far on the shaft a that it protrudes into the extended part of the stator c, eddy currents are generated when the circuit is closed by cutting lines of force through the disk e, f, which brake act on the anchor b. The deeper the disc e, f is pushed into the stator c with the help of the lever mechanism (arrow direction I), the more eddy currents are generated in the disc e, f and the greater the braking effect on the armature, so that the speed of the Motor and the turntable axis goes down. Moving the disc in the opposite direction (direction of arrow II) results in a decrease in the braking effect, ie an increase in speed. The worm gear g, h provides the drive of the turntable in a known manner.

Claims (1)

PATENTANSPRUCH: Elektromotorische: Antriebsvorrichtung mit Drehzahlregelung durch einstellbare Wirbelstrombremsen, insbesondere für Sprechmaschinen, dadurch gekennzeichnet, daß die Bremsscheibe (e, f) -in dem verlängerten Ständer (c) des Motors auf der Motorwelle (a) axial verschiebbar gelagert ist. Claim: Electromotive: drive device with speed control by adjustable eddy current brakes, especially for speaking machines, characterized in that the brake disc (e, f) is axially displaceable in the extended stator (c) of the motor on the motor shaft (a).
DEL78184D Electromotive drive device with speed control through adjustable eddy current brakes Expired DE550717C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL78184D DE550717C (en) Electromotive drive device with speed control through adjustable eddy current brakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL78184D DE550717C (en) Electromotive drive device with speed control through adjustable eddy current brakes

Publications (1)

Publication Number Publication Date
DE550717C true DE550717C (en) 1932-05-14

Family

ID=7284356

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL78184D Expired DE550717C (en) Electromotive drive device with speed control through adjustable eddy current brakes

Country Status (1)

Country Link
DE (1) DE550717C (en)

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