EP2261161B1 - Aufzugsvorrichtung und prüfverfahren dafür - Google Patents

Aufzugsvorrichtung und prüfverfahren dafür Download PDF

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Publication number
EP2261161B1
EP2261161B1 EP08740031.3A EP08740031A EP2261161B1 EP 2261161 B1 EP2261161 B1 EP 2261161B1 EP 08740031 A EP08740031 A EP 08740031A EP 2261161 B1 EP2261161 B1 EP 2261161B1
Authority
EP
European Patent Office
Prior art keywords
car
counterweight
retention force
suspension means
drive sheave
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.)
Not-in-force
Application number
EP08740031.3A
Other languages
English (en)
French (fr)
Other versions
EP2261161A1 (de
EP2261161A4 (de
Inventor
Atsushi Mitsui
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP2261161A1 publication Critical patent/EP2261161A1/de
Publication of EP2261161A4 publication Critical patent/EP2261161A4/de
Application granted granted Critical
Publication of EP2261161B1 publication Critical patent/EP2261161B1/de
Not-in-force legal-status Critical Current
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
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • 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
    • B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
    • B66B5/0093—Testing of safety devices

Definitions

  • the present invention relates to an elevator apparatus including a car to which a safety device is mounted, and to a testing method for verifying actuation of the safety device.
  • a hoisting machine for conducting a test for verifying actuation of a safety device, a hoisting machine is operated in a direction in which a car descends while the safety device is being actuated.
  • a drive sheave rotates idly and therefore the car does not descend, it is determined that the safety device actuates normally (for example, see Patent Document 1).
  • Ts1 D / 2 ⁇ W ⁇ 2 - W ⁇ 1
  • Equation (1) D / 2 ⁇ W ⁇ 2 ⁇ 1 - 1 / ⁇ s
  • the torque Ts1 required for rotating idly the drive sheave is about three times as large as the unbalanced torque T0.
  • a torque required for acceleration and deceleration of the car in general, about twice as large as the unbalanced torque T0
  • a large motor torque is required only for a test for verifying the actuation of the safety device.
  • the traction-type elevator apparatus is required to have such performance that the counterweight or the car is not lifted up any more even if the drive sheave is rotated while the car or the counterweight is on a buffer on the bottom of a hoistway after reaching there.
  • a testing method for verifying the satisfaction of the aforementioned performance condition there is a method of verifying that the drive sheave rotates idly relative to the rope in the most severe conditions, that is, when the drive sheave is rotated in a direction in which the car ascends after the car is brought into an unloaded state and the counterweight is placed on the buffer.
  • the maximum torque required in a state in which the elevator apparatus is operating is a torque expressed by Equation (8) even in consideration of an emergency operation state.
  • the maximum torque is about 75% of the torque required for the test for verifying the actuation of the safety device.
  • Patent Document 1 JP 2007-8611 A
  • the present invention has been made to solve the problem described above, and therefore has an object to provide an elevator apparatus capable of reducing a motor torque required for a test for verifying actuation of a safety device to reduce a hoisting machine in size and a testing method for the same.
  • An elevator apparatus includes: a hoisting machine including a drive sheave; suspension means wound around the drive sheave; a car suspended by the suspension means on a first side of the drive sheave; a counterweight suspended by the suspension means on a second side of the drive sheave; a car guide rail for guiding ascent and descent of the car; a safety device mounted to the car, the safety device being engaged with the car guide rail to cause the car to make an emergency stop; and a retention force application device for applying a retention force less than an unbalanced load of the car and the counterweight to the suspension means on the counterweight side of the drive sheave when a test for verifying actuation of the safety device is conducted.
  • a method for testing an elevator apparatus includes: a step of operating a hoisting machine in a direction in which a car ascends while applying a retention force less than an unbalanced load of the car and a counterweight to suspension means suspending the car and the counterweight, on a counterweight side of a drive sheave; a step of actuating a safety device mounted to the car; and a step of operating the hoisting machine in a direction in which the car descends so as to verify whether the drive sheave rotates idly.
  • FIG. 1 is a side view illustrating an elevator apparatus according to a first embodiment of the present invention.
  • a machine room 2 is provided above a hoistway 1.
  • a machine table 3 is provided in the machine room 2.
  • a hoisting machine 4 is supported on the machine table 3.
  • the hoisting machine 4 includes a drive sheave 5 and a hoisting machine main body 6.
  • the hoisting machine main body 6 includes a hoisting machine motor for rotating the drive sheave 5 and a hoisting machine brake for braking the rotation of the drive sheave 5.
  • a deflector sheave 7 is mounted on the machine table 3.
  • a plurality of main ropes 8 serving as to suspension means are wound around the drive sheave 5 and the deflector sheave 7.
  • a rope having a circular cross section, a belt-like rope, or the like is used as each of the main ropes 8.
  • a car 9 is suspended from one end of each of the main ropes 8.
  • the car 9 is suspended in the hoistway 1 by the main ropes 8 on a first side of the drive sheave 5.
  • the counterweight 10 is suspended from the other end of each of the main ropes 8.
  • the counterweight 10 is suspended by the main ropes 8 on a second side of the drive sheave 5.
  • a pair of car guide rails 11 for guiding ascent and descent of the car 9 and a pair of counterweight guide rails 12 for guiding ascent and descent of the counterweight 10 are provided.
  • a safety device 13 which is engaged with the car guide rails 11 to cause the car 9 to make an emergency stop, is mounted to the car 9.
  • a retention force application device 14 which applies a predetermined retention force to the main ropes 8 when a test for verifying actuation of the safety device 13 is conducted, is mounted to the machine table 3.
  • the retention force which is applied by the retention force application device 14 to the main ropes 8 is less than an unbalanced load of the car 9 and the counterweight 10.
  • the retention force application device 14 applies the retention force to the main ropes 8 on the counterweight 10 side of the drive sheave 5. Further, the retention force application device 14 does not apply the retention force to the main ropes 8 while the elevator apparatus is in service except for a time during which the test for verifying the actuation of the safety device 13 is conducted.
  • FIG. 2 is a configuration diagram illustrating the retention force application device 14 illustrated in FIG. 1 in an enlarged manner.
  • a support member 15 is fixed to the machine table 3.
  • a fixed piece 16 is fixed to the support member 15.
  • a fixed-side friction member 17, which is opposed to the main ropes 8, is fixed to the fixed piece 16.
  • a plurality of guide rods 18a and 18b are provided vertically on the fixed piece 16.
  • a movable piece 19 is supported by the guide rods 18a and 18b.
  • the movable piece 19 is displaceable in a direction in which the movable piece is brought into contact with and separated away from the fixed-side friction member 17 along the guide rods 18a and 18b.
  • a movable-side friction member 20, which is opposed to the main ropes 8, is fixed to the movable piece 19.
  • a plurality of retention force application springs (compression springs) 21a and 21b for biasing the movable piece 19 toward the fixed piece 16 are respectively provided to the guide rods 18a and 18b.
  • stoppermeans for keeping the movable-side frictionmember 20 away from the fixed-side frictionmember 17 against the retention force application springs 21a and 21b is provided between the fixed piece 16 and the movable piece 19.
  • the retention force application device 14 functions as an application brake (rope brake) which releases the stopper means to directly grip (hold) the main ropes 8 between the fixed-side friction member 17 and the movable-side friction member 20 to frictionally brake the main ropes 8 so as to apply the retention force to the main ropes 8 at the time of the test for verifying the actuation of the safety device 13.
  • the retention force application device 14 is actuated at the time when the test for verifying the actuation of the safety device 13 is conducted or the operation is stopped, and is not operated at the time when a normal operation is performed or an emergency stop is made.
  • a mechanism for electrical release and actuation which is required in the case of a normal brake, is not required. Therefore, the stopper means may be configured with a mechanism which is simple enough to be manually operated.
  • the stopper means is released so that the retention force application device 14 applies the retention force to the main ropes 8.
  • the hoisting machine 4 is manually operated in a direction in which the car 9 ascends.
  • the amount of tension corresponding to the retention force applied by the retention force application device 14, which is included in a total tension of the main ropes 8 on the counterweight 10 side, the main ropes being wound around the drive sheave 5, is reduced.
  • a rope catch of a speed governor is actuated to actuate the safety device 13.
  • the drive sheave 5 is rotated in a direction in which the car 9 descends. Then, it is verified if the drive sheave 5 rotates idly.
  • the retention force application device 14 has the retention force equal to or larger than the unbalanced load, there is a likelihood that the car 9 may be prevented from falling with the retention force of the retention force application device 14 even when the safety device 13 does not actuate normally.
  • the retention force of the retention force application device 14 is less than the unbalanced load, the counterweight 10 moves downward when the hoisting machine brake is released. Therefore, it is proved that the car 9 is not retained by the retention force application device 14.
  • FIG. 3 is a side view illustrating the elevator apparatus according to a second embodiment of the present invention
  • FIG. 4 is a side view illustrating the counterweight 10 illustrated in FIG. 3 in an enlarged manner.
  • retention force application devices 22 are mounted to an upper part and a lower part of the counterweight 10.
  • a configuration of each of the retention force application devices 22 is the same as that of the retention force application device 14 illustrated in FIG. 2 .
  • the fixed piece 16 is fixed to the counterweight 10.
  • the fixed-side friction member 17 and the movable-side friction member 20 hold the counterweight guide rails 12 therebetween.
  • the retention force application devices 22 of the second embodiment hold the counterweight guide rails 12 to frictionally brake the counterweight 10 when the test for verifying the actuation of the safety device 13 is conducted. In this manner, the retention force less than the unbalanced load is applied to the main ropes 8 on the counterweight 10 side of the drive sheave 5.
  • the remaining structure and testing method are the same as those described in the first embodiment.
  • FIG. 5 is a side view illustrating the elevator apparatus according to a third embodiment of the present invention.
  • a retention force application device 23 is provided to the deflector sheave 7.
  • the retention force application device 23 brakes the rotation of the deflector sheave 7 so as to apply the retention force less than the unbalanced load to the main ropes 8 on the counterweight 10 side of the drive sheave 5 when the test for verifying the actuation of the safety device 13 is conducted.
  • the remaining structure and testing method are the same as those described in the first embodiment.
  • a groove surface of the deflector sheave 7, into which the main ropes 8 are inserted may be made of a highly frictional material.
  • the deflector sheave 7 may be braked directly at a portion with which the main ropes 8 are brought into contact.
  • the main ropes 8 may be held between the retention force application device 23 and the deflector sheave 7.
  • a highly frictional material may be wound around the part of the main ropes 8, which is in contact with the deflector sheave 7.
  • the elevator apparatus is not limited thereto.
  • the present invention is also applicable to, for example, a 2:1 roping elevator apparatus.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Claims (8)

  1. Aufzugsvorrichtung, mit:
    einer Hebemaschine (4) mit einer Antriebsrolle (5);
    einer Aufhängungseinrichtung (8), die um die Antriebsrolle (5) gewickelt ist;
    einer Kabine (9), die durch die Aufhängungseinrichtung an einer ersten Seite der Antriebsrolle (5) aufgehängt ist;
    einem Gegengewicht (10), das durch die Aufhängungseinrichtung (8) an einer zweiten Seite der Antriebsrolle (5) aufgehängt ist;
    einer Kabinenführungsschiene (11) zum Führen des Aufstiegs und Abstiegs der Kabine (9);
    einer Sicherheitseinrichtung (13), die an der Kabine (9) angebracht ist, wobei sich die Sicherheitseinrichtung in Eingriff mit der Kabinenführungsschiene (11) befindet, um zu bewirken, dass die Kabine (9) einen Nothalt ausführt;
    gekennzeichnet durch ferner aufweisen:
    einer Haltekraft-Aufbringeinrichtung (14, 22, 23) zum Aufbringen einer Haltekraft, die geringer ist als eine asymmetrische Last der Kabine (9) und des Gegengewichts (10) auf die Aufhängungseinrichtung (8) auf einer Gegengewichtsseite (10) der Antriebsrolle (5), wenn ein Test zur Verifizierung der Betätigung der Sicherheitseinrichtung (13) durchgeführt wird.
  2. Aufzugsvorrichtung nach Anspruch 1, wobei
    die Haltekraft-Aufbringeinrichtung (14) die Aufhängungseinrichtung (8) direkt greift, um die Aufhängungseinrichtung durch Reibung zu bremsen, um dadurch die Haltekraft auf die Aufhängungseinrichtung (8) aufzubringen.
  3. Aufzugsvorrichtung nach Anspruch 1, ferner mit:
    einer Gegengewichtsführungsschiene (12) zum Führen des Aufstiegs und Abstiegs des Gegengewichts (10),
    wobei die Haltekraft-Aufbringeinrichtung (22) an dem Gegengewicht (10) angebracht ist und das Gegengewicht (10) gegen die Gegengewichtsführungsschiene (12) durch Reibung bremst, um dadurch die Haltekraft auf die Aufhängungseinrichtung (8) aufzubringen.
  4. Aufzugsvorrichtung nach Anspruch 1, ferner mit:
    einer Ablenkrolle (7) um die ein Teil der Aufhängungseinrichtung (8) auf der Gegengewichtsseite (10) der Antriebsrolle (5) gewickelt ist,
    wobei die Haltekraft-Aufbringeinrichtung (23) die Drehung der Ablenkrolle (7) bremst, um dadurch die Haltekraft auf die Aufhängungseinrichtung (8) aufzubringen.
  5. Aufzugsvorrichtung nach Anspruch 4, wobei
    die Ablenkrolle (7) eine Nutfläche aufweist, die aus einem hochreibenden Material gefertigt ist, mit dem die darum zu wickelnde Aufhängungseinrichtung (8) in Kontakt gebracht ist.
  6. Aufzugsvorrichtung nach Anspruch 4, wobei
    die Haltekraft-Aufbringeinrichtung (23) und die Ablenkrolle (7) die Aufhängungseinrichtung (8) dazwischen halten.
  7. Aufzugsvorrichtung nach Anspruch 4, ferner mit:
    einem hochreibenden Material, das um einen Teil der Aufhängungseinrichtung (8) gewickelt ist, wobei der Teil mit der Ablenkrolle (7) in Kontakt gebracht wird, wenn der Test zur Verifizierung der Betätigung der Sicherheitseinrichtung (13) durchgeführt wird.
  8. Verfahren zum Testen einer Aufzugsvorrichtung, mit:
    einem Schritt des Betätigens einer Hebemaschine (4) in eine Richtung, in der eine Kabine (9) aufsteigt, während eine Haltekraft auf eine Aufhängungseinrichtung (8), welche die Kabine (9) und das Gegengewicht (10) aufhängt, aufgebracht wird, die geringer ist als eine asymmetrische Last der Kabine (9) und eines Gegengewichts (10) auf einer Gegengewichtsseite (10) der Antriebsrolle (5);
    einem Schritt des Betätigens einer Sicherheitseinrichtung (13), die an der Kabine (9) angebracht ist; und
    einem Schritt des Betätigens der Hebemaschine (4) in eine Richtung, in der die Kabine (9) absinkt derart, dass verifiziert wird, ob die Antriebsrolle (5) im Leerlauf dreht.
EP08740031.3A 2008-04-08 2008-04-08 Aufzugsvorrichtung und prüfverfahren dafür Not-in-force EP2261161B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2008/056928 WO2009125473A1 (ja) 2008-04-08 2008-04-08 エレベータ装置及びその試験方法

Publications (3)

Publication Number Publication Date
EP2261161A1 EP2261161A1 (de) 2010-12-15
EP2261161A4 EP2261161A4 (de) 2014-08-06
EP2261161B1 true EP2261161B1 (de) 2015-01-21

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ID=41161616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08740031.3A Not-in-force EP2261161B1 (de) 2008-04-08 2008-04-08 Aufzugsvorrichtung und prüfverfahren dafür

Country Status (5)

Country Link
EP (1) EP2261161B1 (de)
JP (1) JP5174894B2 (de)
KR (1) KR101199046B1 (de)
CN (1) CN101932520B (de)
WO (1) WO2009125473A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104671022B (zh) * 2013-11-26 2017-04-12 三菱电机株式会社 电梯的控制装置及电梯的控制方法
CN109952262B (zh) * 2016-11-21 2020-06-23 三菱电机株式会社 电梯的紧急停止装置的检查方法
CN107473037A (zh) * 2017-08-01 2017-12-15 营口市特种设备监督检验所 电梯限速器检测配套设备
WO2019198153A1 (ja) * 2018-04-10 2019-10-17 三菱電機ビルテクノサービス株式会社 かごを足場として機能させるエレベーターの制御装置
JP6452925B1 (ja) * 2018-05-09 2019-01-16 三菱電機株式会社 エレベーター装置および非常止め装置の試験方法
EP3819245A1 (de) * 2019-11-08 2021-05-12 KONE Corporation Aufzug
JP2021134042A (ja) * 2020-02-27 2021-09-13 株式会社日立製作所 エレベータの非常止め試験方法およびエレベータの非常止め試験用電源

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
JPS59212371A (ja) * 1983-05-19 1984-12-01 株式会社東芝 エレベ−タ
JP4651855B2 (ja) * 2001-05-21 2011-03-16 三菱電機株式会社 エレベータ装置
JP2003002564A (ja) * 2001-06-22 2003-01-08 Mitsubishi Electric Corp エレベータ装置
CN1318287C (zh) * 2002-03-06 2007-05-30 三菱电机株式会社 电梯的紧急制动试验装置
JP4296152B2 (ja) * 2002-11-12 2009-07-15 三菱電機株式会社 エレベータ用ロープ及びエレベータ装置
JP2004210423A (ja) 2002-12-27 2004-07-29 Toshiba Elevator Co Ltd エレベータ装置
WO2005121006A1 (ja) * 2004-06-14 2005-12-22 Mitsubishi Denki Kabushiki Kaisha エレベーター用の非常ブレーキ装置
JP2006164884A (ja) 2004-12-10 2006-06-22 Nissan Motor Co Ltd 触媒材料の塗布方法及び塗布装置
JP2006168846A (ja) * 2004-12-13 2006-06-29 Mitsubishi Electric Corp エレベータ装置および非常止め試験方法
JP4904012B2 (ja) * 2005-04-08 2012-03-28 東芝エレベータ株式会社 エレベータ用ロープブレーキ装置
JP4862296B2 (ja) * 2005-06-28 2012-01-25 三菱電機株式会社 エレベータの検査方法
JP4580828B2 (ja) * 2005-06-30 2010-11-17 株式会社日立製作所 エレベータ装置
JP4706498B2 (ja) * 2006-02-20 2011-06-22 株式会社日立製作所 エレベーター試験方法、その補助装置及びエレベーター装置
JP5073483B2 (ja) 2006-05-10 2012-11-14 三菱電機株式会社 エレベータの安全装置

Also Published As

Publication number Publication date
JP5174894B2 (ja) 2013-04-03
CN101932520A (zh) 2010-12-29
KR20100094594A (ko) 2010-08-26
EP2261161A1 (de) 2010-12-15
EP2261161A4 (de) 2014-08-06
CN101932520B (zh) 2012-10-03
WO2009125473A1 (ja) 2009-10-15
KR101199046B1 (ko) 2012-11-07
JPWO2009125473A1 (ja) 2011-07-28

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