EP3495302B1 - Appareil et procédé d'ascenseur - Google Patents

Appareil et procédé d'ascenseur Download PDF

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Publication number
EP3495302B1
EP3495302B1 EP17206184.8A EP17206184A EP3495302B1 EP 3495302 B1 EP3495302 B1 EP 3495302B1 EP 17206184 A EP17206184 A EP 17206184A EP 3495302 B1 EP3495302 B1 EP 3495302B1
Authority
EP
European Patent Office
Prior art keywords
elevator car
brake
elevator
drive unit
brakes
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.)
Active
Application number
EP17206184.8A
Other languages
German (de)
English (en)
Other versions
EP3495302A1 (fr
Inventor
Alessio Calcagno
Risto Jokinen
Tuukka Kauppinen
Lauri Stolt
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 EP17206184.8A priority Critical patent/EP3495302B1/fr
Priority to ES17206184T priority patent/ES2779768T3/es
Priority to CN201811485883.4A priority patent/CN109896381B/zh
Publication of EP3495302A1 publication Critical patent/EP3495302A1/fr
Application granted granted Critical
Publication of EP3495302B1 publication Critical patent/EP3495302B1/fr
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Anticipated expiration legal-status Critical

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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
    • 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
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons

Definitions

  • This invention relates to an elevator apparatus and more particular to a solution for ensuring that brakes of the elevator apparatus remain in a working condition.
  • an elevator apparatus with a first and second brake arranged to brake an elevator car.
  • the brakes are dimensioned to stop and hold an elevator car with a predetermined load (such as 25% overload) at standstill in the elevator shaft.
  • a predetermined load such as 25% overload
  • Testing brakes needs to be carried out in a way which does not disturb persons utilizing the elevator car for normal operation runs between different floors of a building.
  • a common approach is that service personnel utilizes the elevator car for separate test runs carried out without having persons onboard the elevator car during the test.
  • a drawback with such a solution is, however, that separate test runs need to be regularly carried out which causes costs due to a need to have maintenance personnel involved, and which also reduces the time that the elevator car is available for normal operation elevator car runs. Additionally, such brake tests with an empty elevator car have the drawback that different load conditions are not tested.
  • An object of the present invention is to solve the above mentioned drawback and to provide a solution which simplifies testing of brakes in an elevator apparatus. This object is achieved with an elevator apparatus according to independent claim 1 and with a method according to independent claim 7.
  • Figure 1 illustrates an elevator apparatus 1 with a hoisting machine 2 including a sheave 9 and a drive unit 3, such as an electric motor, arranged to drive an elevator car 4 in an elevator shaft 5.
  • Figure 1 has by way of example been simplified to show that the drive unit 3 is directly with a shaft 6 connected to a sheave 9 (or sheaves) of the hoisting machine 2 around which the rope 7 (or ropes) runs which is used for moving the elevator car 4 and the counter weight 8 in the elevator shaft.
  • a sheave 9 or sheaves
  • the elevator apparatus 1 is also provided with a control arrangement 10 which controls the operation of the hoisting machine 2.
  • the control arrangement may be implemented with circuits or a combination of circuits and a computer program, for instance.
  • the control arrangement 10 additionally controls a first brake 11 and a second brake 12, which by way of example are arranged to brake the shaft 6 in order to stop and hold the elevator car 4 at standstill in the elevator shaft 5. It is, however, possible to utilize other types of brakes than the illustrated hoisting machine brakes, in which case the brakes may be located in another part of the elevator apparatus than illustrated in Figure 1 .
  • the elevator apparatus 1 is provided with electromechanical hoisting machinery brakes 11 and 12 as safety devices to apply braking force to the traction sheave 9 via the rotating shaft 6 of the hoisting machine to brake movement of the hoisting machine and therefore the elevator car 4.
  • the brakes 11 and 12 have to be dimensioned to stop and hold an elevator car with 125% load (25% overload) at standstill in the elevator shaft 5.
  • the brakes 11 and 12 are also used in rescue situations and also in emergency braking situations to stop the elevator car 4 if an operational fault occurs, like in an overspeed situation of the elevator car. Further, they are used to protect elevator passengers from unintended car movement at the landing and to provide a safe operating environment for a servicemen who needs to enter to the inside the elevator shaft 5. Therefore it is necessary to ensure that the brakes are operating correctly.
  • control arrangement 10 is configured to test operation of the at least one of the first 11 and second 12 brakes during a normal operation run of the elevator car 4.
  • a "normal" operation run refers to a situation where the elevator car is available for ordinary passengers having a need to travel from one floor 13 of a building to another floor 14. Consequently, the tests may be carried out with passengers onboard while the elevator apparatus is in the normal operation mode and it is not necessary to set the elevator apparatus into a test mode, which is the case while maintenance personnel is at the installation site and carry out work with the elevator apparatus and have a need to temporarily take control of the elevator apparatus via a specific operator panel 15 in order to drive the elevator car in a test mode, for instance.
  • the control arrangement 10 triggers only one of the at least first 11 and second brake 12 to brake when the elevator car 4 due to adjustment of the force F from the drive unit 3 has slowed down and arrived to a door 16 at a floor 14 in the elevator shaft 5.
  • the elevator car 4 starts to open the door of the elevator car and the landing door 16 to release passengers from the elevator car.
  • the brakes are preferably continuously tested in turns during different elevator runs with predetermined intervals such that the condition of each brake is regularly checked.
  • the control arrangement 10 decreases the force F provided from the drive unit 3 to the elevator car 4. This decrease in the force F may be achieved by reducing the torque T of the drive unit 3.
  • the control arrangement starts to monitor movement of the elevator car 4. This monitoring may be implemented by monitoring the (rotation) speed of the drive unit 3 (such as electric motor), for instance.
  • the control arrangement 10 detects that the elevator car 4 moves, it triggers indication of a failed brake.
  • the control arrangement 10 triggers braking with also the second brake 12 and also increases the force F provided from the drive unit 3 to the elevator car 4 in order to stop movement of the elevator car as soon as possible.
  • the control arrangement 10 stores in a memory information about the failed brake test.
  • the control arrangement may also send information about the failed brake to a remote service center (where the memory may be located) via a remote connection.
  • the control arrangement may prevent further normal operation runs with the elevator car 4 in question until a predetermined control command is received.
  • a maintenance person who has arrived to the location and has carried out appropriate service to the failed brake may pass the predetermined control command to the control arrangement 10 via the operator panel 15, for instance.
  • the predetermined number of failed tests needed to prevent further operation of the elevator car may vary case by case.
  • One alternative is that if indication of a failure for the same brake is triggered in three consecutive tests, then further operation of the elevator car is prevented.
  • information about prevention of further operation of the elevator is stored in a non-volatile memory, and further operation of the elevator is prevented based on the information stored in the non-volatile memory.
  • control arrangement 10 determines that the tested first brake is in good working condition.
  • the test result is preferably stored in a memory. Additionally, the test may be ended such that braking continues with both brakes, until it eventually is time for a new test of one of the brakes.
  • Figure 2 illustrates a method for testing the elevator apparatus of Figure 1 , for instance.
  • Line 17 in Figure 2 illustrates the measured motor speed of the drive unit 3 (such as electric motor) and Line 18 illustrates the torque provided by the drive unit 3 at different moments (T0 - T4) of time.
  • the force F provided from the drive unit 3 to the elevator car 4 is dependent on the torque.
  • Figure 2 illustrates the status of the first brake 11 with line 19 and the status of the second brake 12 with line 20.
  • control arrangement 10 decreases the force F provided from the drive unit 3 to the elevator car 4. This is seen in Figure 2 as a rampdown of the drive unit 3 torque (line 18) starting from moment T2. At this stage monitoring of movements of the elevator car is initiated.
  • the control arrangement triggers at moment T3 braking also with the second brake 12. Additionally, the drive unit torque (line 18) is increased such that the force F provided from the drive unit 3 to the elevator car is increased. In this way the elevator car remains still. After the delay D2 the second brake 12 is engaged and a rampdown of the drive unit 3 torque (line 18) is again started from moment T4.

Claims (7)

  1. Appareil d'ascenseur (1) comprenant :
    une machine de levage (2) avec une unité d'entraînement (3) entraînant une cabine d'ascenseur (4) dans une gaine d'ascenseur (5),
    au moins un premier et un second frein (11, 12) dimensionnés pour arrêter et supporter la cabine d'ascenseur (4) immobile dans la gaine d'ascenseur (5), et
    un agencement de commande (10) commandant le fonctionnement de la machine de levage (2) et des au moins premier et second freins (11, 12), dans lequel :
    l'agencement de commande (10) est configuré pour tester le fonctionnement des au moins premier et second freins (11, 12) en fonctionnement pendant les cycles de fonctionnement normaux de la cabine d'ascenseur en :
    déclenchant un seul (11) des au moins premier et second freins (11, 12) pour freiner lorsque la cabine d'ascenseur (4) a ralenti et est arrivée à une porte (16) dans la gaine d'ascenseur (5),
    diminuant une force (F) fournie par l'unité d'entraînement (3) à la cabine d'ascenseur (4),
    surveillant le déplacement de la gaine d'ascenseur (4), et
    déclenchant une indication d'un frein défaillant (11) dans le cas dans lequel le déplacement de la cabine d'ascenseur (4) est détecté alors que le frein (11) déclenché freine, dans lequel :
    l'agencement de commande (10) est configuré pour déclencher également l'autre (12) des au moins premier et second freins (11, 12) pour freiner dans le cas dans lequel le déplacement de la cabine d'ascenseur est détecté pendant ladite surveillance,
    caractérisé en ce que :
    l'agencement de commande (10) est en outre configuré pour augmenter la force (F) fournie de l'unité d'entraînement (3) à la cabine d'ascenseur (4) dans le cas dans lequel le déplacement de la cabine d'ascenseur est détecté pendant ladite surveillance.
  2. Appareil d'ascenseur selon la revendication 1, dans lequel l'agencement de commande (10) est configuré pour empêcher d'autres cycles de fonctionnement normaux de la cabine d'ascenseur (4) après qu'une indication de test échoué a été déclenchée pour le même frein pendant un nombre prédéterminé de tests jusqu'à ce qu'une commande de contrôle prédéterminée soit reçue via une interface de service (15) de l'appareil d'ascenseur (1).
  3. Appareil d'ascenseur selon l'une des revendications 1 à 2, dans lequel l'agencement de commande (10) est configuré pour diminuer la force (F) fournie par l'unité d'entraînement en réduisant le couple (T) fourni par l'unité d'entraînement (3) .
  4. Appareil d'ascenseur selon l'une des revendications 1 à 3, dans lequel un ou plusieurs des au moins premier et second freins (11, 12) est un frein d'une machine de levage (2).
  5. Appareil d'ascenseur selon l'une des revendications 1 à 4, dans lequel l'agencement de commande (10) est configuré pour tester chacun des au moins premier et second freins (11, 12) en fonctionnement pendant que la cabine d'ascenseur fonctionne dans un fonctionnement normal différent.
  6. Appareil d'ascenseur selon la revendication 1, dans lequel l'agencement de commande est configuré pour réduire une force (F) fournie par l'unité d'entraînement (3) à la cabine d'ascenseur (4), lorsque l'autre (12) des aux moins premier et second freins (11, 12) a été mis en prise pour freiner la machine de lavage ou la cabine d'ascenseur.
  7. Procédé pour tester un appareil d'ascenseur, dans lequel le procédé comprend les étapes suivantes :
    initier un cycle de fonctionnement normal de cabine d'ascenseur en réponse à un appel d'ascenseur reçu via une interface utilisateur (21) de l'appareil d'ascenseur (1),
    déclencher le freinage avec un seul (11) d'au moins un premier et un second frein (11, 12) lorsqu'une cabine d'ascenseur (4) a ralenti et est arrivée à une porte (16) dans une gaine d'ascenseur (5),
    diminuer une force (F) fournie par une unité d'entraînement (3) à la cabine d'ascenseur (4),
    surveiller le déplacement de la cabine d'ascenseur (3),
    déclencher une indication d'un frein défaillant dans le cas dans lequel le déplacement de la cabine d'ascenseur a lieu alors que le frein (11) déclenché freine, et
    freiner également avec l'autre (12) des au moins premier et second freins (11, 12) lorsque le déplacement de la cabine d'ascenseur a lieu pendant le freinage avec le frein déclenché,
    caractérisé en ce que le procédé comprend l'étape suivante :
    augmenter la force (F) fournie par l'unité d'entraînement à la cabine d'ascenseur (4) lorsque le déplacement de la cabine d'ascenseur a lieu pendant le freinage avec le frein déclenché.
EP17206184.8A 2017-12-08 2017-12-08 Appareil et procédé d'ascenseur Active EP3495302B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP17206184.8A EP3495302B1 (fr) 2017-12-08 2017-12-08 Appareil et procédé d'ascenseur
ES17206184T ES2779768T3 (es) 2017-12-08 2017-12-08 Aparato y método de ascensor
CN201811485883.4A CN109896381B (zh) 2017-12-08 2018-12-06 电梯设备和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17206184.8A EP3495302B1 (fr) 2017-12-08 2017-12-08 Appareil et procédé d'ascenseur

Publications (2)

Publication Number Publication Date
EP3495302A1 EP3495302A1 (fr) 2019-06-12
EP3495302B1 true EP3495302B1 (fr) 2020-02-19

Family

ID=60629580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17206184.8A Active EP3495302B1 (fr) 2017-12-08 2017-12-08 Appareil et procédé d'ascenseur

Country Status (3)

Country Link
EP (1) EP3495302B1 (fr)
CN (1) CN109896381B (fr)
ES (1) ES2779768T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111170111B (zh) * 2020-02-28 2021-03-16 深圳市通用互联科技有限责任公司 电梯故障检测方法、装置、计算机设备和存储介质

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7350883B2 (en) * 2002-10-15 2008-04-01 Otis Elevator Company Detecting elevator brake and other dragging by monitoring motor current
US7268514B2 (en) * 2004-11-30 2007-09-11 Rockwell Automation Technologies, Inc. Motor control for stopping a load and detecting mechanical brake slippage
FI119877B (fi) * 2005-08-19 2009-04-30 Kone Corp Hissin turvajärjestely
SG138531A1 (en) * 2006-06-19 2008-01-28 Inventio Ag Method of checking lift braking equipment, a method for placing a lift installation in operation and equipment for carrying out placing in operation
FI118641B (fi) * 2006-06-21 2008-01-31 Kone Corp Menetelmä ja järjestelmä hississä hissikorin hallitsemattoman liikkeen tunnistamiseksi ja pysäyttämiseksi
CN104192659A (zh) * 2014-08-22 2014-12-10 苏州通润驱动设备股份有限公司 一种电梯制动力的检测方法
CN104609273A (zh) * 2015-02-03 2015-05-13 西继迅达（许昌）电梯有限公司 一种电梯驱动主机的制动设备可靠性判定的系统及方法
EP3138801B1 (fr) * 2015-09-07 2018-11-07 KONE Corporation Contrôle de libération de frein d'ascenseur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
ES2779768T3 (es) 2020-08-19
EP3495302A1 (fr) 2019-06-12
CN109896381B (zh) 2022-05-03
CN109896381A (zh) 2019-06-18

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