US3763968A - Electro magnetic braking device - Google Patents

Electro magnetic braking device Download PDF

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Publication number
US3763968A
US3763968A US00233053A US3763968DA US3763968A US 3763968 A US3763968 A US 3763968A US 00233053 A US00233053 A US 00233053A US 3763968D A US3763968D A US 3763968DA US 3763968 A US3763968 A US 3763968A
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United States
Prior art keywords
windings
component
electro
switch
brake
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Expired - Lifetime
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US00233053A
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English (en)
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J Noly
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    • 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
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • 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
    • F16D59/00—Self-acting brakes, e.g. coming into operation at a predetermined speed
    • F16D59/02—Self-acting brakes, e.g. coming into operation at a predetermined speed spring-loaded and adapted to be released by mechanical, fluid, or electromagnetic means
    • 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
    • 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
    • F16D2123/00—Multiple operation forces

Definitions

  • the electro-magnetic braking device includes two coils concentrically disposed about a magnetizable [52] Us Cl 188/171 310/77 317/155 5 core having a high residual magnetism capable of [51] 3 13/64 holding a brake armature in non-braking position [58] Field 164 171 against a spring bias even when the current is removed 188/173, SH/DIG 4 form the coils.
  • Known cranes comprise a fixed part (generally the mast) surmounted by revolving part (jib and counterjib).
  • revolving part jib and counterjib.
  • the revolving part can turn on the fixed part; in other circumstances, it is required that this revolving part shall be immobilised.
  • the cases usually met with in practice are as follows:
  • the brake must be locked when the operator decides to stop the directional movement of the revolving part in the chosen position;
  • the systems known up to the present to ensure that the crane is allowed to behave as a weather vane are mechanically controlled.
  • the crane operator has to activate the directional mechanism directly which releases the brake through a system of screws and nuts (the operator is then obliged to go into the revolving part, that is to say on the top of the crane).
  • the crane operator can actuate the directional mechanism from the base of the crane, by means of cables and levers.
  • the present invention has the aim of avoiding these disadvantages by providing an electrically controlled brake which possesses the characteristic of being two position, that is to say that both in the rest position and after the current is cut off, it can remain as required either locked or freed.
  • the component with high residual magnetism is constituted by a stationary heavy ring against which the armature can be attracted by overcoming a resilient load, such as that of a spring, when this remanent component is magnetised, the brake being then released; whilst on the other hand when the remanent component is demagnetised, the action of the resilient loading repels the armature against a braking disc and the' brake is locked.
  • a resilient load such as that of a spring
  • a single winding is used arranged around the highly remanent ring.
  • This winding can be fed by direct current with a given polarity when it is required to magnetise the ring and with current of the opposite polarity when it is desired to de-magnetise the ring.
  • the brake is used on a crane, it will be understood that if the crane is taken off current when the remanent component is magnetised, the residual magnetism will hold the armature attracted to the remanent component the brake will remain stably in the free position. If on the other hand the crane is taken off current when the remanent component is demagnetised the brake will remain locked under the action of the resilient loading.
  • three separate contacts are used, namely a first contact in series with the magnetisation winding, a second contact in series with the de-magnetisation winding, and a third contact controlling the charge of a condenser which is arranged in parallel on the de-magnetising winding.
  • opening of the third contact isolates the condenser which, because the second contact is closed, discharges through the de-magnetisation winding where it produces a sufficient impulse to de-magnetise the remanent ring so that the brake remains locked from then on.
  • FIG. 1 is an axial section through a brake in the locked (i.e. brake applied) position
  • FIG. 2 is a section similar to FIG. 1, but showing the parts inthe unlocked position
  • FIG. 3 shows diagrammatically the electrical connection of three control contacts in relation to the general three phase circuit of a crane
  • FIG. 4 is a diagram of the direct current electric circuit controlled by the three contacts and illustrating both a magnetisation winding and a de-magnetisation winding.
  • the brake shown in FIGS. 1 and 2 comprises wound yoke formed by a circular component 1 made in mild steel, and a central core 2 in the form of a ring, manufactured from some strongly remanent material, identical to that which is used for example for the manufacture of permanent magnets, and two circular electro-magnetic windings 3 and 4, both concentric with and placed around the central core 2.
  • This wound yoke acts in co-operation with a moving armature 5 made of mild steel and fitted with an annular friction pad 6, on its underside.
  • the armature 5 possesses two lugs 7 which project radially and which can slide respectively in two longitudinal slots 8 in a fixed support 9 of the brake assembly.
  • the support is made of a substantially non-magnetic material.
  • a compression spring 13, intended to apply the lining 6 of the armature 5 on to the braking disc 11, is mounted in the centre of the heavy ring 2, and acts between the armature 5 and a support screw 14 located in a screw-threaded hole in the top of the frame 9. The regulation of this screw allows the braking effort which will be applied to the lining 6 to be the adjusted.
  • the force of the spring 13 applies the lining 6 to the brake disc 11, and this locks the disc 11 and the shaft 12 against rotation.
  • the second stable position (brake feed)
  • an electric current to the winding 3, which is called the magnetisation winding.
  • the magnetisation winding When the magnetisation winding is energised, there is an attraction of the mobile aramture 5 towards the ring 2 of the yoke and this frees the brake disc 1 1.
  • the current can then be cut off, but the central core 2 remains magnetised due to its residual magnetism, and holds the mobile armature 5 firmly against the wound yoke (FIG. 2).
  • the control of these various operations can be carried out from a relay (FIG. 3) operating simultaneously a first (normally open) contact K1, a second (normally closed) K2 and a third (normally open) contact K3.
  • This relay is connected in the three phase feed line of the directional motor M of the crane.
  • the contacts K1 and K3 close automatically as soon as the control for the setting in rotation of the revolving part of the crane is operated. They open as soon as the control for the cessation of movement has been operated. They likewise open in the case of a breakdown in the electrical current supply.
  • the second contact K2 being normally closed, opens as soon as the directional movement is begun and closes as soon as this movement ceases. It likewise closes in the case of a breakdown in current.
  • the first contact K1 is arranged in series with the magnetisation winding 3, so that when the contact K1 is closed, the winding 3 is energised.
  • the contact K2 is arranged in series with the demagnetisation winding 4.
  • a condenser C is mounted in parallel with the contact K2 and the winding 4. These two' parallel connections are fed through the third contact K3.
  • button B which is positioned at the control position of the crane, and which allows the brake to be unlocked to allow the crane to behave as a weather vane.
  • the contact K2 isolates the de-magnetisation winding 4.
  • the contact K2 connects the condenser C which discharges through the de-magnetisation winding. The brake is then locked.
  • a signal lamp may also be included in the electrical circuit to allow the position (locked or unlocked) of the brake to be observed.
  • the brake may be provided with a single winding replacing the windings 3 and 4. Magnetisati'on would then be obtained by passing the current in one direction, demagnetising being produced when the current passes in the opposite direction in the same winding, its itensity being limited to a predetermined-value by the insertion of a resistance in the circuit.
  • An electro-magnetically controlled brake comprising a rotatable disc, a movable armature, support means guiding said armature non-rotatably toward and away from said disc, coil means mounted on said support means, a stationary component having high residual magnetism disposed in the magnetic circuit of said armature and said coil means, resilient means normally biasing said armature into engagement with said disc to prevent rotation of said disc and control circuit means including said coil means and relay means for magnetizing said component upon energization of said relay means to overcome the force of said resilient means and for automatically de-magnetizing said component upon deenergization of said relay means.
  • An electro-magnetically controlled brake as set forth in claim 4 further comprising a manually operated switch connected in toto with said first normally open switch to selectively energize said one of said windings to magnetize said component.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Braking Arrangements (AREA)
  • Jib Cranes (AREA)
US00233053A 1971-03-09 1972-03-06 Electro magnetic braking device Expired - Lifetime US3763968A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7109021A FR2135689A5 (enExample) 1971-03-09 1971-03-09

Publications (1)

Publication Number Publication Date
US3763968A true US3763968A (en) 1973-10-09

Family

ID=9073564

Family Applications (1)

Application Number Title Priority Date Filing Date
US00233053A Expired - Lifetime US3763968A (en) 1971-03-09 1972-03-06 Electro magnetic braking device

Country Status (6)

Country Link
US (1) US3763968A (enExample)
JP (1) JPS5842117B1 (enExample)
ES (1) ES399047A1 (enExample)
FR (1) FR2135689A5 (enExample)
GB (1) GB1379492A (enExample)
IT (1) IT950014B (enExample)

Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4560895A (en) * 1982-11-09 1985-12-24 Mavilor Systemes S.A. Electric motor equipped with inner blocking brake
US4609965A (en) * 1984-11-09 1986-09-02 Pt Components, Inc. Magnetic clutch
US4734817A (en) * 1984-11-09 1988-03-29 Pt Components, Inc. Magnetic clutch
US5000523A (en) * 1989-05-17 1991-03-19 General Motors Corporation Anti-lock braking system with electromagnetic brake
US5121018A (en) * 1991-03-04 1992-06-09 Lucas Aerospace Power Equipment Corporation Latching brake using permanent magnet
US5473209A (en) * 1993-05-21 1995-12-05 Magna Force, Inc. Permanent magnet braking system for drive shafts
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
US5775467A (en) * 1996-07-29 1998-07-07 General Motors Corporation Floating electromagnetic brake system
US5952746A (en) * 1997-05-22 1999-09-14 Still Gmbh Electrical machine and method for mounting such electrical machine on a unit
US6054788A (en) * 1998-08-12 2000-04-25 Reliance Electric Industrial Company Magnetic power transmission coupling
US6144120A (en) * 1999-02-05 2000-11-07 Mitsubishi Denki Kabushiki Kaisha Stepping motor for stable control of position of driven body
US6336530B1 (en) 2000-04-07 2002-01-08 Timothy L. Hottle Vehicle brake assembly
US6459182B1 (en) 1998-05-14 2002-10-01 Sew-Eurodrive Gmbh Electric motor with brake
US6471017B1 (en) * 1997-11-27 2002-10-29 Robert Bosch Gmbh Magnetic brake and electromechanical braking device with a magnetic brake
US6483217B1 (en) * 1997-08-25 2002-11-19 Sew Eurodrive Gmbh & Co. Electromagnetic operable mechanical brake for an electric motor
US6655507B2 (en) * 2001-01-26 2003-12-02 Honda Giken Kogyo Kabushiki Kaisha Electrically operated parking brake apparatus
EP1422188A1 (de) * 2002-11-21 2004-05-26 Liebherr-Werk Biberach GmbH Drehwerksbremse eines Krandrehwerks
US20060042303A1 (en) * 2004-08-26 2006-03-02 Lg Electronics Inc. Refrigerator having basket lift apparatus
US20060219498A1 (en) * 2005-03-30 2006-10-05 Organek Gregory J Residual magnetic devices and methods
US20060219499A1 (en) * 2005-03-30 2006-10-05 Organek Gregory J Residual magnetic devices and methods
US20060220393A1 (en) * 2005-03-30 2006-10-05 Dimig Steven J Residual magnetic devices and methods
US20060219497A1 (en) * 2005-03-30 2006-10-05 Organek Gregory J Residual magnetic devices and methods
US20060219496A1 (en) * 2005-03-30 2006-10-05 Dimig Steven J Residual magnetic devices and methods
US20060225973A1 (en) * 2005-03-30 2006-10-12 Dimig Steven J Residual magnetic devices and methods
US20060225985A1 (en) * 2005-03-30 2006-10-12 Dimig Steven J Residual magnetic devices and methods
US20060227488A1 (en) * 2005-03-30 2006-10-12 Dimig Steven J Residual magnetic devices and methods
US20060226942A1 (en) * 2005-03-30 2006-10-12 Dimig Steven J Residual magnetic devices and methods
US20060226939A1 (en) * 2005-03-30 2006-10-12 Dimig Steven J Residual magnetic devices and methods
US20060226941A1 (en) * 2005-03-30 2006-10-12 Dimig Steven J Residual magnetic devices and methods
US20060238285A1 (en) * 2005-03-30 2006-10-26 Dimig Steven J Residual magnetic devices and methods
US20060238284A1 (en) * 2005-03-30 2006-10-26 Dimig Steven J Residual magnetic devices and methods
US20060288569A1 (en) * 2005-06-23 2006-12-28 Carlson J D Electronic circuit board assembly fixturing device and method of making electronic circuit board assemblies
US20090308827A1 (en) * 2008-05-21 2009-12-17 Manitowoc Crane Group France Device for placing a tower crane in weathervaning mode
WO2011063889A1 (de) * 2009-11-26 2011-06-03 Sew-Eurodrive Gmbh & Co. Kg Elektromagnetisch betätigbare bremse und verfahren zum betreiben einer bremse
ITBO20110310A1 (it) * 2011-05-30 2012-12-01 Deserti Meccanica S R L Freno elettromagnetico a pressione di molle equipaggiato con magneti permanenti.
US20150008091A1 (en) * 2013-07-02 2015-01-08 Goodrich Corporation Wrap spring park brake system, apparatus and method
CN104803310A (zh) * 2015-03-30 2015-07-29 江西工埠机械有限责任公司 一齿轮永磁同步直驱起升机
US20160207613A1 (en) * 2015-01-15 2016-07-21 Goodrich Corporation Bi-stable voice coil park brake
US20170370429A1 (en) * 2014-12-26 2017-12-28 Oriental Motor Co., Ltd. Friction brake structure
US20180224272A1 (en) * 2015-08-26 2018-08-09 Renishaw Plc Braking system
CN110375020A (zh) * 2019-08-15 2019-10-25 安徽创新电磁离合器有限公司 一种双线圈双衔铁的电磁制动器
EP3775596A1 (en) * 2018-04-12 2021-02-17 Warner Electric Technology LLC Bistable brake
US11211844B1 (en) * 2018-06-29 2021-12-28 Hydro-Gear Limited Partnership Electric motor and brake assembly
CN114207309A (zh) * 2019-07-24 2022-03-18 科尼全球公司 电磁制动器
US11289972B2 (en) * 2017-11-21 2022-03-29 Genesis Robotics & Motion Technologies Canada, Ulc Electric motor with integrated brake
CN114270069A (zh) * 2019-07-24 2022-04-01 科尼全球公司 电磁制动器
CN114555971A (zh) * 2019-07-24 2022-05-27 科尼全球公司 电磁制动器
US11378145B2 (en) * 2017-10-25 2022-07-05 Warner Electric Europe S.A.S. Stepped torque braking device
US12078218B2 (en) * 2019-03-22 2024-09-03 Kone Corporation Silent electromagnetic brake
US12429100B1 (en) 2021-05-21 2025-09-30 Hydro-Gear Limited Partnership Electric brake assembly for electric drives

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458714A1 (fr) * 1979-06-07 1981-01-02 Ferodo Sa Dispositif d'alimentation a effet retarde pour frein a commande electromagnetique
FR2919853B1 (fr) 2007-08-10 2009-09-18 Manitowoc Crane Group F Sas Procede de dispositif pour faciliter la mise en girouette d'une grue a tour dans un vent perturbe

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3224540A (en) * 1961-03-07 1965-12-21 Zahnradfabrik Friedrichshafen Electromagnetically operated multiple disc clutch or brake

Cited By (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4560895A (en) * 1982-11-09 1985-12-24 Mavilor Systemes S.A. Electric motor equipped with inner blocking brake
US4609965A (en) * 1984-11-09 1986-09-02 Pt Components, Inc. Magnetic clutch
US4734817A (en) * 1984-11-09 1988-03-29 Pt Components, Inc. Magnetic clutch
US5000523A (en) * 1989-05-17 1991-03-19 General Motors Corporation Anti-lock braking system with electromagnetic brake
US5121018A (en) * 1991-03-04 1992-06-09 Lucas Aerospace Power Equipment Corporation Latching brake using permanent magnet
US5473209A (en) * 1993-05-21 1995-12-05 Magna Force, Inc. Permanent magnet braking system for drive shafts
US5477094A (en) * 1993-05-21 1995-12-19 Magna Force, Inc. Permanent magnet coupling and transmission
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
US5775467A (en) * 1996-07-29 1998-07-07 General Motors Corporation Floating electromagnetic brake system
US5952746A (en) * 1997-05-22 1999-09-14 Still Gmbh Electrical machine and method for mounting such electrical machine on a unit
US6483217B1 (en) * 1997-08-25 2002-11-19 Sew Eurodrive Gmbh & Co. Electromagnetic operable mechanical brake for an electric motor
US6471017B1 (en) * 1997-11-27 2002-10-29 Robert Bosch Gmbh Magnetic brake and electromechanical braking device with a magnetic brake
US6459182B1 (en) 1998-05-14 2002-10-01 Sew-Eurodrive Gmbh Electric motor with brake
US6054788A (en) * 1998-08-12 2000-04-25 Reliance Electric Industrial Company Magnetic power transmission coupling
US6144120A (en) * 1999-02-05 2000-11-07 Mitsubishi Denki Kabushiki Kaisha Stepping motor for stable control of position of driven body
US6336530B1 (en) 2000-04-07 2002-01-08 Timothy L. Hottle Vehicle brake assembly
US6655507B2 (en) * 2001-01-26 2003-12-02 Honda Giken Kogyo Kabushiki Kaisha Electrically operated parking brake apparatus
EP1422188A1 (de) * 2002-11-21 2004-05-26 Liebherr-Werk Biberach GmbH Drehwerksbremse eines Krandrehwerks
US20060042303A1 (en) * 2004-08-26 2006-03-02 Lg Electronics Inc. Refrigerator having basket lift apparatus
US7607742B2 (en) * 2004-08-26 2009-10-27 Lg Electronics Inc. Refrigerator having basket lift apparatus
WO2006105428A3 (en) * 2005-03-30 2007-11-29 Strattec Security Corp Residual magnetic devices and methods
US8403124B2 (en) 2005-03-30 2013-03-26 Strattec Security Corporation Residual magnetic devices and methods
US20060219497A1 (en) * 2005-03-30 2006-10-05 Organek Gregory J Residual magnetic devices and methods
US20060219496A1 (en) * 2005-03-30 2006-10-05 Dimig Steven J Residual magnetic devices and methods
US20060225973A1 (en) * 2005-03-30 2006-10-12 Dimig Steven J Residual magnetic devices and methods
US20060225985A1 (en) * 2005-03-30 2006-10-12 Dimig Steven J Residual magnetic devices and methods
US20060227488A1 (en) * 2005-03-30 2006-10-12 Dimig Steven J Residual magnetic devices and methods
US20060226942A1 (en) * 2005-03-30 2006-10-12 Dimig Steven J Residual magnetic devices and methods
US20060226939A1 (en) * 2005-03-30 2006-10-12 Dimig Steven J Residual magnetic devices and methods
US20060226941A1 (en) * 2005-03-30 2006-10-12 Dimig Steven J Residual magnetic devices and methods
US20060238285A1 (en) * 2005-03-30 2006-10-26 Dimig Steven J Residual magnetic devices and methods
US20060238284A1 (en) * 2005-03-30 2006-10-26 Dimig Steven J Residual magnetic devices and methods
US10290411B2 (en) 2005-03-30 2019-05-14 Strattec Security Corporation Residual magnetic devices and methods
WO2007030144A3 (en) * 2005-03-30 2007-11-29 Strattec Security Corp Residual magnetic devices and methods
US20060219499A1 (en) * 2005-03-30 2006-10-05 Organek Gregory J Residual magnetic devices and methods
US7401483B2 (en) 2005-03-30 2008-07-22 Strattec Security Corporation Residual magnetic devices and methods for an ignition actuation blockage device
WO2006105449A3 (en) * 2005-03-30 2009-04-23 Strattec Security Corp Residual magnetic devices and methods
US20060219498A1 (en) * 2005-03-30 2006-10-05 Organek Gregory J Residual magnetic devices and methods
US20060220393A1 (en) * 2005-03-30 2006-10-05 Dimig Steven J Residual magnetic devices and methods
CN101584014B (zh) * 2005-03-30 2013-01-09 斯特拉泰克安全公司 剩磁装置和方法
US7969705B2 (en) 2005-03-30 2011-06-28 Strattec Security Corporation Residual magnetic devices and methods
US8149557B2 (en) 2005-03-30 2012-04-03 Strattec Security Corporation Residual magnetic devices and methods
US20060288569A1 (en) * 2005-06-23 2006-12-28 Carlson J D Electronic circuit board assembly fixturing device and method of making electronic circuit board assemblies
US8074816B2 (en) * 2008-05-21 2011-12-13 Manitowoc Crane Group France Device for placing a tower crane in weathervaning mode
US20090308827A1 (en) * 2008-05-21 2009-12-17 Manitowoc Crane Group France Device for placing a tower crane in weathervaning mode
WO2011063889A1 (de) * 2009-11-26 2011-06-03 Sew-Eurodrive Gmbh & Co. Kg Elektromagnetisch betätigbare bremse und verfahren zum betreiben einer bremse
ITBO20110310A1 (it) * 2011-05-30 2012-12-01 Deserti Meccanica S R L Freno elettromagnetico a pressione di molle equipaggiato con magneti permanenti.
US9297430B2 (en) * 2013-07-02 2016-03-29 Goodrich Corporation Wrap spring park brake system, apparatus and method
US9995351B2 (en) 2013-07-02 2018-06-12 Goodrich Corporation Wrap spring park brake system, apparatus and method
US20150008091A1 (en) * 2013-07-02 2015-01-08 Goodrich Corporation Wrap spring park brake system, apparatus and method
US20170370429A1 (en) * 2014-12-26 2017-12-28 Oriental Motor Co., Ltd. Friction brake structure
US10598235B2 (en) * 2014-12-26 2020-03-24 Oriental Motor Co., Ltd. Friction brake structure
US20160207613A1 (en) * 2015-01-15 2016-07-21 Goodrich Corporation Bi-stable voice coil park brake
US9586678B2 (en) * 2015-01-15 2017-03-07 United Technologies Corporation Bi-stable voice coil park brake
CN104803310A (zh) * 2015-03-30 2015-07-29 江西工埠机械有限责任公司 一齿轮永磁同步直驱起升机
US20180224272A1 (en) * 2015-08-26 2018-08-09 Renishaw Plc Braking system
US10527411B2 (en) * 2015-08-26 2020-01-07 Renishaw Plc Braking system
US11378145B2 (en) * 2017-10-25 2022-07-05 Warner Electric Europe S.A.S. Stepped torque braking device
US11289972B2 (en) * 2017-11-21 2022-03-29 Genesis Robotics & Motion Technologies Canada, Ulc Electric motor with integrated brake
EP3775596A1 (en) * 2018-04-12 2021-02-17 Warner Electric Technology LLC Bistable brake
US11211844B1 (en) * 2018-06-29 2021-12-28 Hydro-Gear Limited Partnership Electric motor and brake assembly
US12078218B2 (en) * 2019-03-22 2024-09-03 Kone Corporation Silent electromagnetic brake
CN114207309A (zh) * 2019-07-24 2022-03-18 科尼全球公司 电磁制动器
CN114270069A (zh) * 2019-07-24 2022-04-01 科尼全球公司 电磁制动器
CN114555971A (zh) * 2019-07-24 2022-05-27 科尼全球公司 电磁制动器
US20220243775A1 (en) * 2019-07-24 2022-08-04 Konecranes Global Corporation Electromagnetic brake
US12422005B2 (en) * 2019-07-24 2025-09-23 Konecranes Global Corporation Electromagnetic brake
CN110375020A (zh) * 2019-08-15 2019-10-25 安徽创新电磁离合器有限公司 一种双线圈双衔铁的电磁制动器
US12429100B1 (en) 2021-05-21 2025-09-30 Hydro-Gear Limited Partnership Electric brake assembly for electric drives

Also Published As

Publication number Publication date
DE2210806A1 (de) 1972-11-02
GB1379492A (en) 1975-01-02
ES399047A1 (es) 1974-10-16
JPS5842117B1 (enExample) 1983-09-17
FR2135689A5 (enExample) 1972-12-22
IT950014B (it) 1973-06-20
DE2210806B2 (de) 1976-07-22

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