WO2012086060A1 - Dispositif de frein électromagnétique pour ascenseur - Google Patents

Dispositif de frein électromagnétique pour ascenseur Download PDF

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Publication number
WO2012086060A1
WO2012086060A1 PCT/JP2010/073353 JP2010073353W WO2012086060A1 WO 2012086060 A1 WO2012086060 A1 WO 2012086060A1 JP 2010073353 W JP2010073353 W JP 2010073353W WO 2012086060 A1 WO2012086060 A1 WO 2012086060A1
Authority
WO
WIPO (PCT)
Prior art keywords
piece
movable iron
elastic body
iron piece
pressing force
Prior art date
Application number
PCT/JP2010/073353
Other languages
English (en)
Japanese (ja)
Inventor
大輔 岡田
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2010/073353 priority Critical patent/WO2012086060A1/fr
Priority to JP2012549548A priority patent/JP5494826B2/ja
Priority to EP10861051.0A priority patent/EP2657173B1/fr
Priority to KR1020137018795A priority patent/KR101482480B1/ko
Priority to CN201080070855.1A priority patent/CN103261079B/zh
Publication of WO2012086060A1 publication Critical patent/WO2012086060A1/fr

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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
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/24—Operating devices
    • B66D5/30—Operating devices electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
    • 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
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
    • B66D5/14—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect embodying discs

Definitions

  • This invention relates to an electromagnetic brake device provided in an elevator hoisting machine.
  • Patent Document 1 listed below discloses an electromagnetic brake device provided in an elevator hoisting machine.
  • the rotary body linked with a drive sheave is provided in the winding machine.
  • the electromagnetic brake device presses the braking piece against the rotating body with the force of a spring to generate a force for holding the car stationary (hereinafter also simply referred to as “stationary holding force”).
  • stationary holding force On the other hand, at the time of raising and lowering the car, the electromagnetic brake device generates an attractive force against the spring force from the electromagnet and separates the braking piece from the rotating body.
  • Patent Document 2 discloses a technique for reducing the collision noise when the electromagnetic brake device operates. Specifically, the one described in Patent Document 2 generates the stationary holding force. Two springs are used. Then, when generating the stationary holding force, the spring having the larger pressing force is first acted to press the braking piece against the rotating body.
  • the present invention has been made to solve the above-described problems, and an object thereof is to provide an electromagnetic brake device for an elevator that can greatly reduce noise when a braking piece collides with a rotating body. That is.
  • An electromagnetic brake device for an elevator is an electromagnetic brake device for an elevator that holds an elevator car stationary by pressing a braking piece against a rotating body that rotates in conjunction with a drive sheave of the elevator hoisting machine.
  • a first movable iron piece provided with a braking piece and arranged so that the braking piece faces the rotating body, a second movable iron piece arranged on the opposite side of the braking piece with respect to the first movable iron piece, and a first
  • a first elastic body having a predetermined pressing force provided between the movable iron piece and the second movable iron piece, and a predetermined pressing force stronger than the pressing force of the first elastic body
  • the second movable iron piece is A second elastic body pressed against the movable iron piece side, the second movable iron piece is sucked against the pressing force of the second elastic body, and the first movable iron piece is moved against the pressing force of the first elastic body.
  • an electromagnet to be attracted to
  • the elevator electromagnetic brake device can greatly reduce noise when the braking piece collides with the rotating body.
  • FIG. 3 is a diagram showing an AA arrow view of FIG. 2. It is the C section enlarged view of FIG. It is a figure for demonstrating operation
  • FIG. 1 is a diagram showing an overall configuration of an elevator.
  • 1 is an elevator hoistway
  • 2 is an elevator car
  • 3 is a counterweight.
  • the car 2 and the counterweight 3 are suspended in a fishing bottle type in the hoistway 1 by the main rope 4.
  • a thin hoisting machine 5 is provided in the upper space in the hoistway 1.
  • the hoisting machine 5 constitutes a driving device that drives the car 2.
  • the hoisting machine 5 is provided with a driving sheave 6 so as to be rotatable in both directions.
  • a part of the main rope 4 is wound around a driving sheave 6.
  • the car 2 moves up and down in the hoistway 1 in a direction corresponding to the moving direction of the main rope 4 when the main rope 4 moves in the longitudinal direction in conjunction with the rotation of the driving sheave 6.
  • 7 is a guide rail for guiding the raising and lowering of the car 2
  • 8 is a speed governor for detecting a predetermined overspeed state.
  • FIG. 2 is a rear view showing a hoisting machine provided with an elevator electromagnetic brake device according to Embodiment 1 of the present invention
  • FIG. 3 is a view taken along the line AA in FIG. 2
  • FIG. 4 is a section C in FIG. It is an enlarged view.
  • FIG. 2 shows a view taken along the line BB in FIG.
  • Numeral 11 is a frame that is a casing of the hoisting machine 5.
  • the drive sheave 6 is rotatably provided on the frame 11 via a bearing.
  • a rotating body 12 is provided integrally with the drive sheave 6. The rotating body 12 rotates in conjunction with the drive sheave 6.
  • a part of the rotator 12 is formed with a cylindrical part 13 having a short (width) cylindrical shape.
  • the tubular portion 13 has the same rotation axis as that of the driving sheave 6 and is disposed inside the frame 11.
  • the cylindrical portion 13 is supported by the frame 11 via other portions of the rotating body 12.
  • the cylindrical portion 13 is provided with a rotor core 14 on the outer peripheral surface 13a.
  • Reference numeral 15 denotes a stator that constitutes a main part of the electric motor.
  • the stator 15 is provided on the inner peripheral surface of the frame 11 so as to face the rotor core 14.
  • the electromagnetic brake device 10 generates a force for holding the car 2 stationary by pressing the braking piece 16 against the rotating body 12. Further, when the car 2 is raised and lowered, the electromagnetic brake device 10 releases the braking force 16 from the rotating body 12 to release the stationary holding force.
  • the electromagnetic brake device 10 is arranged on both sides of the rotating body 12. In such a case, the electromagnetic brake device 10 blocks the rotation of the rotating body 12 by pressing the braking piece 16 against the outer peripheral surface 13a of the cylindrical portion 13 from the side.
  • the outer peripheral surface 13a of the cylindrical portion 13 functions as a braking surface for generating the static holding force.
  • the operation direction of the electromagnetic brake device 10, that is, the direction that operates when the braking piece 16 contacts and separates from the rotating body 12 (braking surface) is the horizontal direction.
  • the electromagnetic brake device 10 includes a brake piece 16, a field 17, a coil 18, a movable piece (iron piece) 19, a spring (elastic body) 20, a movable piece (iron piece) 21, and an elastic body 22.
  • the field 17 and the coil 18 constitute an electromagnet. That is, when a voltage is applied to the coil 18, an electromagnetic force is generated in the field 17.
  • the frame 11 has openings 11a on both sides thereof.
  • the field 17 is applied to the frame 11 so as to cover the opening 11 a from the outside, and is attached to the frame 11 by a bolt 23. Further, the coil 18 is provided in the field 17 so that its axis is directed in the operation direction.
  • the movable piece 19 is supported by the field 17 so as to be movable in the operation direction within a predetermined range.
  • the movable piece 19 is disposed on the rotating body 12 side of the field 17 so that one side surface thereof faces the field 17. That is, the movable piece 19 is attached to the field 17 so as to approach and separate from the rotating body 12.
  • the spring 20 is for pressing the movable piece 19 with a predetermined pressing force in a direction in which the movable piece 19 moves away from the field 17 among the above operating directions.
  • the movable piece 19 is constantly pushed toward the rotating body 12 by the spring 20.
  • the spring 20 is provided in the field 17, and the tip portion thereof is connected to the one side surface of the movable piece 19.
  • the movable piece 21 is supported by the movable piece 19 so as to be movable in the operation direction within a predetermined range.
  • the movable piece 21 is arranged on the rotating body 12 side of the movable piece 19 so that one side surface thereof faces the other side surface of the movable piece 19.
  • the braking piece 16 is provided on the other side surface of the movable piece 21 (a surface facing the opposite side of the one side surface), and is disposed so as to face the outer peripheral surface 13 a of the cylindrical portion 13. That is, the movable piece 19 is disposed on the opposite side of the brake piece 16 with respect to the movable piece 21, and the brake piece 16, the movable piece 21, the movable piece 19, and the electromagnet (field 17) are arranged outside the rotating body 12. And arranged in series in the operation direction.
  • the elastic body 22 is provided between the other side surface of the movable piece 19 and one side surface of the movable piece 21.
  • the elastic body 22 is made of a member such as rubber or a spring, and is provided so as to expand and contract in the operation direction, like the spring 20.
  • the elastic body 22 has a predetermined pressing force that is weaker than the pressing force of the spring 20.
  • the elastic body 22 exerts a force in the operation direction so that the movable piece 19 and the movable piece 21 are separated from each other by the pressing force.
  • the spring 20 presses the movable piece 19 toward the movable piece 21 with a predetermined pressing force stronger than the pressing force of the elastic body 22.
  • the movable piece 19 is made of, for example, a member having a U-shaped cross section that opens to the rotating body 12 side. That is, the movable piece 19 is formed with a recess on the other side facing the movable piece 21.
  • the elastic body 22 contracts, the movable piece 21 is configured so as to be entirely accommodated in the concave portion of the movable piece 19.
  • FIGS. 5 to 7 are diagrams for explaining the operation of the elevator electromagnetic brake device according to the first embodiment of the present invention.
  • FIG. 5 shows a state of the electromagnetic brake device 10 when the car 2 is traveling in the hoistway 1.
  • a predetermined voltage is applied to the coil 18.
  • an electromagnetic attractive force Fm1 is generated between the field 17 and the movable piece 19, and the field 17 attracts the movable piece 19 against the pressing force Fk1 of the spring 20. That is, the electromagnetic attraction force Fm1 is set to a predetermined magnitude that can overcome the pressing force Fk1 of the spring 20.
  • a predetermined electromagnetic attractive force Fm2 is also generated between the movable piece 19 and the movable piece 21.
  • the electromagnetic attractive force Fm2 is weaker than the electromagnetic attractive force Fm1, but is set to a predetermined magnitude that can overcome the pressing force Fk2 ( ⁇ Fk1) of the elastic body 22. For this reason, the movable piece 19 sucks the movable piece 21 against the pressing force Fk ⁇ b> 2 of the elastic body 22.
  • the movable piece 19 is pulled toward the field 17 until, for example, one side surface thereof contacts the field 17.
  • the spring 20 may be assembled so as to fit inside the field 17.
  • the movable piece 21 approaches the movable piece 19 and is disposed in the concave portion of the movable piece 19.
  • a predetermined gap is formed between the braking piece 16 and the outer peripheral surface 13a of the cylindrical portion 13, and the car 2 can be moved up and down.
  • a braking command is output from a predetermined control device (not shown).
  • the electromagnetic brake device 10 performs a predetermined process for deactivating the voltage of the coil 18 when the braking command is input. As a result, the current flowing through the coil 18 gradually decreases, and the electromagnetic attractive forces Fm1 and Fm2 gradually decrease.
  • the electromagnetic attractive force Fm2 becomes smaller than the pressing force Fk2 of the elastic body 22. Then, the movable piece 21 moves to the rotating body 12 side by the pressing force Fk2 of the elastic body 22, and the braking piece 16 collides with the outer peripheral surface 13a of the cylindrical portion 13. Since the movable piece 19 is disposed at a position close to the field 17, the electromagnetic attractive force Fm1 is larger than the electromagnetic attractive force Fm2. For this reason, even when the current value of the coil 18 decreases to I1, the electromagnetic attractive force Fm1 is larger than the pressing force Fk1 of the spring 20, and the movable piece 19 remains in close contact with the field 17.
  • FIG. 6 shows a state when the current value of the coil 18 is reduced to I1.
  • the elastic body 22 has a predetermined elongation amount that allows the braking piece 16 to contact the rotating body 12 with the movable piece 19 in close contact with the field 17.
  • FIG. 7 shows a state when the current value of the coil 18 is reduced to I2.
  • car 2 stopping at the landing 9 can be reduced. That is, in the electromagnetic brake device 10, when a braking command is output from the control device, first, the movable piece 21 moves to the rotating body 12 side, and the braking piece 16 collides with the cylindrical portion 13. At this time, since the spring 20 having a large pressing force remains compressed, only a small pressing force of the elastic body 22 acts on the braking piece 16. That is, the energy when the braking piece 16 collides with the rotating body 12 can be kept small, and the noise at this time can be greatly reduced.
  • the electromagnetic brake device 10 after bringing the braking piece 16 into contact with the outer peripheral surface 13 a of the cylindrical portion 13, the braking piece 16 is pressed against the rotating body 12 by the large pressing force of the spring 20. For this reason, it is possible to generate a stable stationary holding force while preventing the noise.
  • the elastic body 22 can absorb the impact caused by the movement of the movable piece 19, and a new cushioning material or the like can be obtained. Without the provision, it is possible to reduce the collision sound of the movable piece 19.
  • positioning of the hoisting machine 5 are not limited to this.
  • the arrangement and operation direction of the electromagnetic brake device 10 are not limited to the above description.
  • the electromagnetic brake device 10 may be disposed inside the rotating body 12, or the operation direction of the electromagnetic brake device 10 may be set in the axial direction of the rotating body 12. Even with such a configuration, it is possible to achieve the same effects as described above.
  • the electromagnetic brake device according to the present invention can be applied to those installed in an elevator hoisting machine.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Braking Arrangements (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

L'invention porte sur un dispositif de frein électromagnétique pour ascenseur, qui est capable de réduire significativement un bruit provoqué lorsqu'une pièce de frein s'écrase dans un corps en rotation. Le dispositif de frein électromagnétique (10) comporte une pièce mobile (21) à laquelle la pièce de frein (16) est reliée, une pièce mobile (19) qui est disposée sur le côté à l'opposé de la pièce de frein (16) relativement à la pièce mobile (21), un corps élastique (22) qui est disposé entre la pièce mobile (21) et la pièce mobile (19), et un ressort (20) qui presse la pièce mobile (19) contre la pièce mobile (21) avec une force de pression prédéterminée supérieure à la force de pression du corps élastique (22). Un électroaimant attire la pièce mobile (19) à l'encontre de la force de pression du ressort (20) et amène la pièce mobile (19) à attirer la pièce mobile (21) à l'encontre de la force de pression du corps élastique (22).
PCT/JP2010/073353 2010-12-24 2010-12-24 Dispositif de frein électromagnétique pour ascenseur WO2012086060A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PCT/JP2010/073353 WO2012086060A1 (fr) 2010-12-24 2010-12-24 Dispositif de frein électromagnétique pour ascenseur
JP2012549548A JP5494826B2 (ja) 2010-12-24 2010-12-24 エレベーター用電磁ブレーキ装置
EP10861051.0A EP2657173B1 (fr) 2010-12-24 2010-12-24 Dispositif de frein électromagnétique pour ascenseur
KR1020137018795A KR101482480B1 (ko) 2010-12-24 2010-12-24 엘리베이터용 전자 브레이크 장치
CN201080070855.1A CN103261079B (zh) 2010-12-24 2010-12-24 电梯用电磁制动装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/073353 WO2012086060A1 (fr) 2010-12-24 2010-12-24 Dispositif de frein électromagnétique pour ascenseur

Publications (1)

Publication Number Publication Date
WO2012086060A1 true WO2012086060A1 (fr) 2012-06-28

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PCT/JP2010/073353 WO2012086060A1 (fr) 2010-12-24 2010-12-24 Dispositif de frein électromagnétique pour ascenseur

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EP (1) EP2657173B1 (fr)
JP (1) JP5494826B2 (fr)
KR (1) KR101482480B1 (fr)
CN (1) CN103261079B (fr)
WO (1) WO2012086060A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020183643A1 (fr) * 2019-03-13 2020-09-17 三菱電機株式会社 Frein de machine de levage d'ascenseur et machine de levage

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103489714B (zh) * 2013-09-25 2015-12-09 中国科学院深圳先进技术研究院 一种锁紧装置
WO2015136663A1 (fr) * 2014-03-13 2015-09-17 三菱電機株式会社 Ascenseur et frein de dispositif d'élévation pour ascenseurs
DE102014215911A1 (de) * 2014-08-12 2016-02-18 Zf Friedrichshafen Ag Scheibenbremsanordnung
DE102015213740A1 (de) * 2015-07-21 2017-02-09 Zf Friedrichshafen Ag Elektromagnetische Konusbremse und Personenbeförderungsmittelantrieb
CN105984790B (zh) * 2016-07-19 2018-07-17 苏州福特美福电梯有限公司 一种自减速型电磁安全轿厢
CN107934713A (zh) * 2017-12-15 2018-04-20 江苏立达电梯有限公司 电梯限速器、电梯限速器控制装置及电梯限速控制方法
EP3712025B1 (fr) * 2019-03-22 2022-11-09 KONE Corporation Frein électromagnétique silencieux

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000289954A (ja) 1999-04-05 2000-10-17 Mitsubishi Electric Corp エレベーター用巻上機
JP2003002568A (ja) 2001-06-15 2003-01-08 Mitsubishi Electric Corp エレベータ用巻上機のブレーキ
JP2004076899A (ja) * 2002-08-21 2004-03-11 Mitsubishi Electric Corp エレベータ巻上機のブレーキ装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3787862B2 (ja) * 1995-10-03 2006-06-21 三菱電機株式会社 エレベータのブレーキ装置及びエレベータ装置
JP2005172021A (ja) * 2003-12-08 2005-06-30 Mitsubishi Electric Corp 電磁制動装置
JP4455042B2 (ja) * 2003-12-18 2010-04-21 三菱電機株式会社 エレベーター用巻上機
KR200424453Y1 (ko) 2006-06-07 2006-08-22 현대엘리베이터주식회사 드럼방식의 직접형 전자 브레이크를 구비한 권양기
IL186678A0 (en) * 2006-11-16 2008-02-09 Inventio Ag Brake equipment, lift installation, a method for detecting a function of the brake equipment, and a modernisation set

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000289954A (ja) 1999-04-05 2000-10-17 Mitsubishi Electric Corp エレベーター用巻上機
JP2003002568A (ja) 2001-06-15 2003-01-08 Mitsubishi Electric Corp エレベータ用巻上機のブレーキ
JP2004076899A (ja) * 2002-08-21 2004-03-11 Mitsubishi Electric Corp エレベータ巻上機のブレーキ装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020183643A1 (fr) * 2019-03-13 2020-09-17 三菱電機株式会社 Frein de machine de levage d'ascenseur et machine de levage

Also Published As

Publication number Publication date
EP2657173B1 (fr) 2020-03-25
CN103261079A (zh) 2013-08-21
EP2657173A1 (fr) 2013-10-30
JPWO2012086060A1 (ja) 2014-05-22
CN103261079B (zh) 2015-01-28
JP5494826B2 (ja) 2014-05-21
KR101482480B1 (ko) 2015-01-13
KR20130115324A (ko) 2013-10-21
EP2657173A4 (fr) 2017-08-16

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