GB902155A - Improvements in and relating to electro-magnetic brakes - Google Patents

Improvements in and relating to electro-magnetic brakes

Info

Publication number
GB902155A
GB902155A GB220661A GB220661A GB902155A GB 902155 A GB902155 A GB 902155A GB 220661 A GB220661 A GB 220661A GB 220661 A GB220661 A GB 220661A GB 902155 A GB902155 A GB 902155A
Authority
GB
United Kingdom
Prior art keywords
plate
nut
carrier
spring
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.)
Expired
Application number
GB220661A
Inventor
Michael George Joseph Fry
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.)
Brevets Aero Mecaniques SA
Original Assignee
Brevets Aero Mecaniques SA
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 Brevets Aero Mecaniques SA filed Critical Brevets Aero Mecaniques SA
Priority to GB220661A priority Critical patent/GB902155A/en
Publication of GB902155A publication Critical patent/GB902155A/en
Expired legal-status Critical Current

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)
  • Braking Arrangements (AREA)

Abstract

902,155. Electromagnetic brakes. BREVETS AERO-MECANIQUES S.A. Jan. 19, 1961, No. 2206/61. Class 103 (1). A device 17 for maintaining a constant gap in an axially-applied electromagnetic brake comprises a spacer E having limited axial movement with respect to one magnet member 13 and a screw-and-nut unit A, B, in abutment between the spacer and the other of the magnet members 16, spring means 18 producing an axial thrust on the unit A, B to cause axial shortening and compensate for brake wear. An extension 1 of an electric motor shaft 4 carries a fan 3 and a double-sided brake disc 2, axially slidable on pins 10. The disc 2 is interposed between a carrier 8, rigid with the motor casing, and a pressure-plate 11 secured to an armature 13, the carrier and the plate being urged to grip the disc by spring units 12. The device 17 acts as a thrust-member to separate the carrier and the plate when an electromagnet 15 is energized on current being supplied to the motor. Manual release of the brake is provided by a lever 19 having camming balls 24 between the magnet member 16 and an abutment nut 25. The device 17 comprises a screw A mounted on the plate 8 and having a quick-pitch thread co-operating with a nut B having a domed cap C rotationally borne in a recess in the plate 16. The face of the nut B carries a friction ring D against which bears the flanged end of a spacer sleeve E having a collar F and nut G providing predetermined axial clearance, substantially equal to the desired magnet gap, with respect to the plate 13. A spring 18 prevents the sleeve E turning and provides an axial thrust to hold the cap C against plate 16. When wear occurs the relative movement of the plate 13 and carrier 8 is greater than the clearance in the collar and nut F, G and the flange E moves away from the friction-ring D. The spring 18 urges the nut axially causing it to move along the screw A until the ring D and flange E abut and the desired clearance is restored.
GB220661A 1961-01-19 1961-01-19 Improvements in and relating to electro-magnetic brakes Expired GB902155A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB220661A GB902155A (en) 1961-01-19 1961-01-19 Improvements in and relating to electro-magnetic brakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB220661A GB902155A (en) 1961-01-19 1961-01-19 Improvements in and relating to electro-magnetic brakes

Publications (1)

Publication Number Publication Date
GB902155A true GB902155A (en) 1962-07-25

Family

ID=9735459

Family Applications (1)

Application Number Title Priority Date Filing Date
GB220661A Expired GB902155A (en) 1961-01-19 1961-01-19 Improvements in and relating to electro-magnetic brakes

Country Status (1)

Country Link
GB (1) GB902155A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2901784A1 (en) * 1978-01-26 1979-08-02 Asea Ab ELECTROMAGNETIC DISC BRAKE
FR2416386A1 (en) * 1978-02-07 1979-08-31 Leroy Somer Moteurs BRAKE ADAPTABLE TO AN ELECTRIC MOTOR, PROCESS FOR ITS ASSEMBLY AND MOTOR-BRAKE RESULTING
EP1704087A2 (en) * 2003-12-15 2006-09-27 Steven Sullivan Method and apparatus for braking and maneuvering
US8376273B2 (en) 2005-11-11 2013-02-19 Airbus Operations Limited Aircraft braking system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2901784A1 (en) * 1978-01-26 1979-08-02 Asea Ab ELECTROMAGNETIC DISC BRAKE
FR2416386A1 (en) * 1978-02-07 1979-08-31 Leroy Somer Moteurs BRAKE ADAPTABLE TO AN ELECTRIC MOTOR, PROCESS FOR ITS ASSEMBLY AND MOTOR-BRAKE RESULTING
EP1704087A2 (en) * 2003-12-15 2006-09-27 Steven Sullivan Method and apparatus for braking and maneuvering
US8955793B2 (en) 2003-12-15 2015-02-17 Steven Sullivan Landing gear method and apparatus for braking and maneuvering
EP1704087B1 (en) * 2003-12-15 2018-02-14 Steven Sullivan Method and apparatus for braking and maneuvering
US8376273B2 (en) 2005-11-11 2013-02-19 Airbus Operations Limited Aircraft braking system

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