EP3689804A1 - Frein de sécurité d'ascenseur, ascenseur et procédé pour tester des freins de sécurité d'ascenseur - Google Patents

Frein de sécurité d'ascenseur, ascenseur et procédé pour tester des freins de sécurité d'ascenseur Download PDF

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Publication number
EP3689804A1
EP3689804A1 EP19155229.8A EP19155229A EP3689804A1 EP 3689804 A1 EP3689804 A1 EP 3689804A1 EP 19155229 A EP19155229 A EP 19155229A EP 3689804 A1 EP3689804 A1 EP 3689804A1
Authority
EP
European Patent Office
Prior art keywords
brake
elevator
safety brake
safety
movable elements
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.)
Pending
Application number
EP19155229.8A
Other languages
German (de)
English (en)
Inventor
Joni Lappalainen
Henri WENLIN
Antti Saarelainen
Petri Alkula
Lasse HURRI
Andrej Burakov
Leena Ranta
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.)
Kone Corp
Original Assignee
Kone Corp
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 Kone Corp filed Critical Kone Corp
Priority to EP19155229.8A priority Critical patent/EP3689804A1/fr
Priority to US16/547,311 priority patent/US11597633B2/en
Priority to CN201910774063.5A priority patent/CN110857210B/zh
Publication of EP3689804A1 publication Critical patent/EP3689804A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0037—Performance analysers
    • 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
    • B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
    • B66D5/08—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying blocks or shoes
    • 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
    • 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

Definitions

  • One object of the present invention is to eliminate drawbacks of prior art technology and to achieve an elevator with safety brakes where the operation condition testing of the safety brakes is fast and easy to perform. Another object of the present invention is to achieve an elevator having higher ride comfort due to a decreased deceleration fluctuation as well as quieter braking operations. Yet another object of the present invention is to achieve an elevator having smaller and more cost-effective brake units than in prior art technology.
  • the elevator safety brake according to the invention is characterized by what is disclosed in the characterization part of claim 1. Other embodiments of the invention are characterized by what is disclosed in the other claims.
  • the elevator driving machinery 1 comprises at least a housing 1d, a drive motor, a traction sheave 1a, a brake assembly having preferably at least two safety brake units 1b that are disc brake units in the embodiment and a brake disc 1c.
  • the drive motor is inside the machinery housing 1d and is arranged to rotate simultaneously the coaxial traction sheave 1a and brake disc 1c.
  • the safety brake units 1b are fastened floatably to fastening lugs 1e on the outer periphery of the housing 1d.
  • the safety brake units 2 have been arranged to decelerate and stop the rotational movement of the brake disc 1c and at the same time also the rotational movement of the traction sheave 1a. In case of disc brakes the safety brake units 1b can also be called brake calipers.
  • a disc brake type safety brake unit 1b according to the invention is advantageously used as an elevator driving machine brake unit to decelerate and stop movements of the elevator car 2 and/or to keep the elevator car 2 in its position during loading and unloading phases and also when being out of use.
  • the counter element 7 also comprises friction pads or linings on its surface that is facing to the rotating brake disc 1c.
  • those pads or linings are substantially similar to the pads or linings 9 of the brake plates 8a, 8b.
  • each disc type safety brake unit 1b are otherwise similar but preferably their thickness is unequal.
  • a brake plate assembly 8 comprising altogether four brake plates with four diverse thicknesses, or two brake plates with a first thickness and the other two brake plates with a second thickness. So, in the first case all the brake plates 8 are unequal in their thickness. Thus, they all can be pressed against the braking surface of the brake disc 1c at slightly diverse time, one after the other.
  • the linear back and forth motion of the armatures 12a-12c is arranged so that the traveling length of the first armature 12a is the longest, the traveling length of the second armature 12b is the second longest and the traveling length of the third armature 12c is the shortest.
  • this is arranged so that the armatures 12a-12c are different in their sizes so that in their direction of movement the dimension of the first armature 12a is the shortest, the dimension of the second armature 12b is the second shortest, and the dimension of the third armature 12c is the longest.
  • a gap 18 or distance between the back surface of the armatures and the counter surface of the frame part 11 varies so that with the first armature 12a the distance is the longest and so on.
  • the movable elements 8, 12 are engaged with and disengaged from the rotatable braking surface of the elevator driving machinery 1 by adjusting current in the coil assembly 6, 16 of the electromagnets of the safety brake units 1b, 10b.
  • the safety brake units 1b, 10b are kept disengaged from the rotatable braking surface of the elevator driving machinery 1, and in the second position of the movable elements 8, 12 the safety brake units 1b, 10b are kept engaged to the rotatable braking surface of the elevator driving machinery 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
EP19155229.8A 2018-08-22 2019-02-04 Frein de sécurité d'ascenseur, ascenseur et procédé pour tester des freins de sécurité d'ascenseur Pending EP3689804A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19155229.8A EP3689804A1 (fr) 2019-02-04 2019-02-04 Frein de sécurité d'ascenseur, ascenseur et procédé pour tester des freins de sécurité d'ascenseur
US16/547,311 US11597633B2 (en) 2018-08-22 2019-08-21 Elevator safety brake, elevator and method for testing elevator safety brakes
CN201910774063.5A CN110857210B (zh) 2018-08-22 2019-08-21 电梯安全制动器、电梯和用于测试电梯安全制动器的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19155229.8A EP3689804A1 (fr) 2019-02-04 2019-02-04 Frein de sécurité d'ascenseur, ascenseur et procédé pour tester des freins de sécurité d'ascenseur

Publications (1)

Publication Number Publication Date
EP3689804A1 true EP3689804A1 (fr) 2020-08-05

Family

ID=65279434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19155229.8A Pending EP3689804A1 (fr) 2018-08-22 2019-02-04 Frein de sécurité d'ascenseur, ascenseur et procédé pour tester des freins de sécurité d'ascenseur

Country Status (1)

Country Link
EP (1) EP3689804A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2730168A1 (de) * 1977-07-04 1979-01-25 Mayr Maschf Kg Chr Elektromagnetisch lueftbare federdruckbremse fuer zweistufenbremsung
WO2007094777A2 (fr) * 2006-02-14 2007-08-23 Otis Elevator Company Vérification de condition de frein d'ascenseur
EP2341261A2 (fr) * 2009-12-18 2011-07-06 Luis Alzola Elizondo Frein électromagnétique séquentiel pour ascenseurs
EP1701904B1 (fr) 2004-01-09 2011-11-30 Kone Corporation Methode pour tester l'etat des freins d'un ascenseur
WO2012072517A1 (fr) * 2010-12-03 2012-06-07 Inventio Ag Procédé pour le fonctionnement d'ascenseurs
TWI607949B (zh) * 2014-10-01 2017-12-11 利愛電氣股份有限公司 電梯主機制動系統的測試方法
JP6271956B2 (ja) * 2013-11-12 2018-01-31 株式会社日立製作所 エレベータ

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2730168A1 (de) * 1977-07-04 1979-01-25 Mayr Maschf Kg Chr Elektromagnetisch lueftbare federdruckbremse fuer zweistufenbremsung
EP1701904B1 (fr) 2004-01-09 2011-11-30 Kone Corporation Methode pour tester l'etat des freins d'un ascenseur
WO2007094777A2 (fr) * 2006-02-14 2007-08-23 Otis Elevator Company Vérification de condition de frein d'ascenseur
EP2341261A2 (fr) * 2009-12-18 2011-07-06 Luis Alzola Elizondo Frein électromagnétique séquentiel pour ascenseurs
WO2012072517A1 (fr) * 2010-12-03 2012-06-07 Inventio Ag Procédé pour le fonctionnement d'ascenseurs
JP6271956B2 (ja) * 2013-11-12 2018-01-31 株式会社日立製作所 エレベータ
TWI607949B (zh) * 2014-10-01 2017-12-11 利愛電氣股份有限公司 電梯主機制動系統的測試方法

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