FR2272300A1 - Magnet friction coupling or brake - has friction member coated with magnetic flux damping material for rapid release - Google Patents

Magnet friction coupling or brake - has friction member coated with magnetic flux damping material for rapid release

Info

Publication number
FR2272300A1
FR2272300A1 FR7516074A FR7516074A FR2272300A1 FR 2272300 A1 FR2272300 A1 FR 2272300A1 FR 7516074 A FR7516074 A FR 7516074A FR 7516074 A FR7516074 A FR 7516074A FR 2272300 A1 FR2272300 A1 FR 2272300A1
Authority
FR
France
Prior art keywords
magnet
friction
damping material
magnetic flux
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.)
Withdrawn
Application number
FR7516074A
Other languages
French (fr)
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.)
Matrix Engineering Ltd
Original Assignee
Matrix Engineering Ltd
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 Matrix Engineering Ltd filed Critical Matrix Engineering Ltd
Publication of FR2272300A1 publication Critical patent/FR2272300A1/en
Withdrawn legal-status Critical Current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
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F16D65/127—Discs; Drums for disc brakes characterised by properties of the disc surface; Discs lined with friction material
    • 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
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/02—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings
    • F16D27/04—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings with axially-movable friction surfaces
    • F16D27/06—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings with axially-movable friction surfaces with friction surfaces arranged within the flux
    • 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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
    • F16D55/26—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member without self-tightening action
    • F16D55/36—Brakes with a plurality of rotating discs all lying side by side
    • 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
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D2027/008—Details relating to the magnetic circuit, or to the shape of the clutch parts to achieve a certain magnetic path
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/18—Electric or magnetic
    • F16D2121/20—Electric or magnetic using electromagnets

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Braking Arrangements (AREA)

Abstract

Magnet friction coupling or brake comprises, at least, one electro-magnet and an associated rotor both positioned coaxially relative to an inner section for friction contact by closing a magnetic flux circuit between the electromagnet and the rotor. At least part of the working surfaces of at least one friction member of the assembly is coated with a magnetic-flux damping material so as to enable the friction members to be rapidly released when the electro-magnet is deactivated. The coating material is specif. brass, such as brass plating. The usual magnetic field isolating component is expendable in this arrangement.
FR7516074A 1974-05-24 1975-05-23 Magnet friction coupling or brake - has friction member coated with magnetic flux damping material for rapid release Withdrawn FR2272300A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB2338474 1974-05-24
GB5463074 1974-12-18
GB5809175 1975-03-13

Publications (1)

Publication Number Publication Date
FR2272300A1 true FR2272300A1 (en) 1975-12-19

Family

ID=27258210

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7516074A Withdrawn FR2272300A1 (en) 1974-05-24 1975-05-23 Magnet friction coupling or brake - has friction member coated with magnetic flux damping material for rapid release

Country Status (2)

Country Link
DE (1) DE2522951A1 (en)
FR (1) FR2272300A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175016A1 (en) * 1984-09-21 1986-03-26 Sanden Corporation Electromagnetic clutch having high torque transfer
FR3113709A1 (en) * 2020-08-31 2022-03-04 Christian Menard electromagnetic device associated mechanical amplifier DEAMEA

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175016A1 (en) * 1984-09-21 1986-03-26 Sanden Corporation Electromagnetic clutch having high torque transfer
FR3113709A1 (en) * 2020-08-31 2022-03-04 Christian Menard electromagnetic device associated mechanical amplifier DEAMEA

Also Published As

Publication number Publication date
DE2522951A1 (en) 1975-12-11

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Legal Events

Date Code Title Description
ST Notification of lapse