DE932944C - Magnetic particle clutch with a cylindrical working gap - Google Patents

Magnetic particle clutch with a cylindrical working gap

Info

Publication number
DE932944C
DE932944C DE1949932944D DE932944DD DE932944C DE 932944 C DE932944 C DE 932944C DE 1949932944 D DE1949932944 D DE 1949932944D DE 932944D D DE932944D D DE 932944DD DE 932944 C DE932944 C DE 932944C
Authority
DE
Germany
Prior art keywords
magnetic particle
working gap
cylindrical working
particle clutch
clutch
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
DE1949932944D
Other languages
German (de)
Inventor
Josef Dipl-Ing Dr Techn Ratzke
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
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE932944C publication Critical patent/DE932944C/en
Expired legal-status Critical Current

Links

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
    • 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)
  • Electromagnets (AREA)

Description

Bei Magnetpulverkupplungen ist das magnetisierbare Material in einem ringförmigen Raum zwischen zwei als Kupplungshälften ausgebildeten Magnetflächen eingebracht. Dabei tritt auch in unerregtem Zustand der Kupplung Reibung zwischen dem Pulver und den Kupplungshälften auf. Diese Reibung ist für viele Zwecke unerwünscht..With magnetic particle clutches, the magnetizable material is in one annular space between two magnetic surfaces designed as coupling halves brought in. In this case, friction also occurs when the clutch is in the de-energized state the powder and the coupling halves. This friction is undesirable for many purposes.

Erfindungsgemäß läßt sich bei Magnetpulverkupplungen mit zylindrischem Arbeitsspalt die Reibung in unerregtem Zustand dadurch vermeiden, daß das Magnetpulver in urierregtem Zustand in Aussparungen aufgenommen wird, welche sich in der Arbeitsfläche des äußeren Kupplungsteils befinden: Die Zeichnung zeigt diese Kupplung schematisch. Der innere Teil der Kupplung a trägt die Erregerwicklung b, während das Magnetpulver in unerregtem Zustand der Kupplung in den Aussparungendes äußeren Kupplungsteils aufgenommen ist. Wird die Kupplung erregt, so wandert das Magnetpulver in den ringförmigen Spalt und stellt einen Reibungsschluß zwischen Kupplungsteilen her. Beim Ausschalten der Erregung wandert das Magnetpulver infolge der Reibung und der Fliehkraft in die Aussparungen c, so daß weitere Reibung nicht mehr auftritt. Um ein Haften des Pulvers in de Aussparungen zu verbessern, kann eine Beimengung von Fett usw. zweckmäßig sein.According to the invention, magnetic particle clutches with cylindrical Working gap avoid friction in the de-energized state by removing the magnetic powder is recorded in the urierregenem state in recesses, which are in the work surface of the outer coupling part are located: The drawing shows this coupling schematically. The inner part of the clutch a carries the field winding b, while the magnetic powder in the de-energized state of the coupling in the recesses of the outer coupling part is recorded. If the clutch is excited, the magnetic powder migrates into the ring-shaped one Gap and creates a frictional connection between clutch parts. When switching off The magnetic powder migrates into the excitation as a result of friction and centrifugal force the recesses c, so that further friction no longer occurs. To prevent the To improve the powder in the recesses, adding fat, etc., can be useful be.

Claims (1)

PATENTANSPRUCH: Magnetpulverkupplung mit zylindrischem Arbeitsspalt, gekennzeichnet durch Aussparungen in der Arbeitsfläche des äußeren Kupplungsteils zur Aufnahme des Magnetpulvers in unerregtem Zustand. Angezogene Druckschriften: Deutsche Patentschriften Nr. 22I 985, 325 364, 749 988; . »Techncal News Bulletin of National Bureau of Standards«, Bd. 32, S. 54 bis 6o; »Automotive Industries«, Bd.98; Nr.7, S.38; »AIEE-Transactions«, 3d. 67, S. 13o9 bis 131o.PATENT CLAIM: Magnetic particle clutch with cylindrical working gap, characterized by recesses in the working surface of the outer coupling part for taking up the magnetic powder in an unexcited state. Referred publications: German Patent Nos. 22I 985, 325 364, 749 988; . »Techncal News Bulletin of National Bureau of Standards ", Vol. 32, pp. 54-60; "Automotive Industries", Volume 98; No. 7, p.38; "AIEE-Transactions", 3d. 67, pp. 13o9 to 131o.
DE1949932944D 1949-04-06 1949-04-06 Magnetic particle clutch with a cylindrical working gap Expired DE932944C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP0038887 1949-04-06

Publications (1)

Publication Number Publication Date
DE932944C true DE932944C (en) 1955-09-12

Family

ID=581701

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1949932944D Expired DE932944C (en) 1949-04-06 1949-04-06 Magnetic particle clutch with a cylindrical working gap

Country Status (1)

Country Link
DE (1) DE932944C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1067645B (en) * 1955-07-21 1959-10-22 Elmeg Magnetic particle brake
DE973043C (en) * 1951-02-22 1959-11-26 Eaton Mfg Co Magnetic particle clutch
DE1256085B (en) * 1956-09-03 1967-12-07 Holding Fuer Handels Ind Und V Device for coupling the drive motor to the gearbox and for switching the gear stages in motor vehicles
FR2618503A1 (en) * 1987-07-24 1989-01-27 Inst Francais Du Petrole Force-transmission device for applying a specific drive torque to a rotating element
CN109210104A (en) * 2018-08-31 2019-01-15 恒有（苏州）精工机电有限公司 A kind of coil arragement construction increasing magnetic rheological clutch dynamic controlled range

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE221985C (en) *
DE325364C (en) * 1919-06-15 1920-09-13 Siemens & Halske Akt Ges Eddy current gear
DE749988C (en) * 1942-04-16 1945-01-18 Electric clutch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE221985C (en) *
DE325364C (en) * 1919-06-15 1920-09-13 Siemens & Halske Akt Ges Eddy current gear
DE749988C (en) * 1942-04-16 1945-01-18 Electric clutch

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973043C (en) * 1951-02-22 1959-11-26 Eaton Mfg Co Magnetic particle clutch
DE1067645B (en) * 1955-07-21 1959-10-22 Elmeg Magnetic particle brake
DE1256085B (en) * 1956-09-03 1967-12-07 Holding Fuer Handels Ind Und V Device for coupling the drive motor to the gearbox and for switching the gear stages in motor vehicles
FR2618503A1 (en) * 1987-07-24 1989-01-27 Inst Francais Du Petrole Force-transmission device for applying a specific drive torque to a rotating element
CN109210104A (en) * 2018-08-31 2019-01-15 恒有（苏州）精工机电有限公司 A kind of coil arragement construction increasing magnetic rheological clutch dynamic controlled range

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