GB556985A - Improvements in electromagnetic brakes - Google Patents

Improvements in electromagnetic brakes

Info

Publication number
GB556985A
GB556985A GB942542A GB942542A GB556985A GB 556985 A GB556985 A GB 556985A GB 942542 A GB942542 A GB 942542A GB 942542 A GB942542 A GB 942542A GB 556985 A GB556985 A GB 556985A
Authority
GB
United Kingdom
Prior art keywords
magnet
brake
drum
shaft
springs
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
GB942542A
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.)
WILLIAM DOUGLAS TORRY
Alstom Electrical Machine Ltd
Original Assignee
WILLIAM DOUGLAS TORRY
Alstom Electrical Machine 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 WILLIAM DOUGLAS TORRY, Alstom Electrical Machine Ltd filed Critical WILLIAM DOUGLAS TORRY
Priority to GB942542A priority Critical patent/GB556985A/en
Publication of GB556985A publication Critical patent/GB556985A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • 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
    • F16D65/38—Slack adjusters
    • F16D65/40—Slack adjusters mechanical
    • F16D65/42—Slack adjusters mechanical non-automatic
    • F16D65/44—Slack adjusters mechanical non-automatic by means of direct linear adjustment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/03—Mechanisms with latches or braking devices in general for capstans, hoists or similar devices as well as braking devices actuated electrically or by fluid under pressure
    • 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
    • F16D2065/024—Braking members; Mounting thereof the braking surface being inclined with respect to the rotor's axis of rotation at an angle other than 90 degrees, e.g. comprising a conical rotor
    • 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
    • F16D65/38—Slack adjusters
    • F16D2065/383—Slack adjusters for adjusting the spring force in spring-applied brakes
    • 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
    • F16D2121/22—Electric or magnetic using electromagnets for releasing a normally applied brake

Landscapes

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

Abstract

556,985. Cone brakes. LANCASHIRE DYNAMO & CRYPTO, Ltd., and TORRY, W. D. July 7, 1942, No. 9425. [Class 103 (i)] A brake comprises a conical brake drum mounted upon a shaft to be braked so as to rotate therewith and a non-rotatable conical brake member or members movable axially to engage the drum by springs and disengaged by an electromagnet. In one construction, Fig. 1, a conical brake drum A keyed to the shaft B of an electric motor M is engaged by the correspondingly shaped part of a member C secured to the movable part E of a D.C. electromagnet which is carried by bolts J slidable in a fixed part G of the magnet. The member C has a friction lining D and is held against rotation by interengaging slots and projections C<SP>1</SP> on it and the part G. Springs F urge the members C, E towards the drum A. The brake may be disengaged by hand by nuts J<SP>1</SP>. The magnet may be arranged to be de-energized to apply the brake when the motor circuit is broken. The fixed part of the magnet comprises in addition to the part G which is gapped to accommodate the bolts J, the inner part K and coil H. In another construction provided with an A.C. magnet, this magnet comprises two or three solenoids, according as the current is single or three phase, disposed on each side of the shaft. In a further construction, Fig. 5, also shown as provided with a single phase magnet the drum A is splined on the shaft B and is arranged to be gripped between the fixed member C<SP>2</SP> and a member C which is movable axially by the springs F and is secured to the movable part E<SP>1</SP> of the magnet. Hand release of the brake is effected by the nut K<SP>1</SP> and screwed rod K<SP>2</SP>. The member C<SP>2</SP> may be adjusted by shims S.
GB942542A 1942-07-07 1942-07-07 Improvements in electromagnetic brakes Expired GB556985A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB942542A GB556985A (en) 1942-07-07 1942-07-07 Improvements in electromagnetic brakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB942542A GB556985A (en) 1942-07-07 1942-07-07 Improvements in electromagnetic brakes

Publications (1)

Publication Number Publication Date
GB556985A true GB556985A (en) 1943-10-29

Family

ID=9871724

Family Applications (1)

Application Number Title Priority Date Filing Date
GB942542A Expired GB556985A (en) 1942-07-07 1942-07-07 Improvements in electromagnetic brakes

Country Status (1)

Country Link
GB (1) GB556985A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974756A (en) * 1958-03-03 1961-03-14 Reliance Electric & Eng Co Automatic reset brake release
US5620065A (en) * 1994-08-01 1997-04-15 Rexnord Corporation Spring set brake
US5685398A (en) * 1996-06-28 1997-11-11 Rexnord Corporation Fast response adjustable brake

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974756A (en) * 1958-03-03 1961-03-14 Reliance Electric & Eng Co Automatic reset brake release
US5620065A (en) * 1994-08-01 1997-04-15 Rexnord Corporation Spring set brake
US5685398A (en) * 1996-06-28 1997-11-11 Rexnord Corporation Fast response adjustable brake

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