WO2019097635A1 - Dispositif de sécurité et ascenseur comprenant ce dernier - Google Patents

Dispositif de sécurité et ascenseur comprenant ce dernier Download PDF

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Publication number
WO2019097635A1
WO2019097635A1 PCT/JP2017/041297 JP2017041297W WO2019097635A1 WO 2019097635 A1 WO2019097635 A1 WO 2019097635A1 JP 2017041297 W JP2017041297 W JP 2017041297W WO 2019097635 A1 WO2019097635 A1 WO 2019097635A1
Authority
WO
WIPO (PCT)
Prior art keywords
car
wedge
actuator
spring
abnormal speed
Prior art date
Application number
PCT/JP2017/041297
Other languages
English (en)
Japanese (ja)
Inventor
福田　敏行
洋輔 久保
Original Assignee
株式会社日立製作所
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 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to PCT/JP2017/041297 priority Critical patent/WO2019097635A1/fr
Priority to JP2019554117A priority patent/JP6834022B2/ja
Priority to CN201780096356.1A priority patent/CN111278758A/zh
Publication of WO2019097635A1 publication Critical patent/WO2019097635A1/fr

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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
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed

Definitions

  • the present invention relates to a safety device that performs an emergency stop when a car reaches an abnormal speed, and an elevator equipped with the same.
  • an emergency stop device provided on the elevating body and generating a braking force on the elevating body by rotation around the actuating shaft, and an emergency stop device provided on the elevating body
  • An elevator safety device includes an assist motor that generates a torque for returning and a power transmission unit that transmits the torque generated by the assist motor to the actuating shaft.
  • the elevator emergency stop device (safety device) described in Patent Document 1 uses an assist motor as a means for generating a torque for returning the emergency stop device, and utilizes a power transmission means such as a gear. It has a structure to return the emergency stop device. Therefore, in order to operate the safety gear, a device separate from the assist motor, for example, a governor, a governor rope, and a grasping device thereof are required, which raises the problem of an increase in the cost of the elevator.
  • an object of this invention is to provide the safety device of the elevator which can operate
  • the safety device of the present invention engages the wedge and the safety gear when the vertical movement of the car reaches an abnormal speed, and grips the guide rail to stop the car.
  • An abnormal speed detection device for detecting an abnormal speed of the car, a drive shaft interlocking with the wedge, an actuator for applying a drive force to the drive shaft, and a spring for applying an urging force to the drive shaft;
  • the wedge and the safety gear are disengaged against the biasing force of the spring by the driving force of the actuator, and the riding
  • the actuator is discharged, and the biasing force of the spring brings the wedge and the safety gear into engagement with each other. was assumed to grip the rail.
  • an elevator safety device capable of operating and easily returning the safety gear with a relatively simple configuration that does not use a speed governor or the like.
  • FIG. 2 is a schematic configuration view showing a steady state of the safety device of the first embodiment.
  • FIG. 2 is a schematic configuration view showing a power failure state of the safety device of the first embodiment.
  • FIG. 8 is a schematic configuration view showing a steady state of the safety device of the second embodiment.
  • FIG. 7 is a schematic configuration view showing a power failure state of the safety device of the second embodiment.
  • the elevator of the present invention includes a car 1, a counterweight 40, a main rope 50, a traction sheave 60, a guide rail 70, and a safety device 80.
  • the car 1 installed in the hoistway 110 of the building 100 has a plurality of guide devices (not shown), and is slidably engaged with the guide rail 70. Therefore, the car 1 is guided by the guide rails 70 to ascend and descend in the hoistway 110.
  • the car 1 and the counterweight 40 are suspended from the main rope 50.
  • the traction sheave 60 is disposed in a machine room 120 provided in the building 100.
  • a main rope 50 is wound around the traction sheave 60.
  • a driving device (not shown) for driving and braking the traction sheave 60 is disposed.
  • the drive device frictionally drives the main rope 50 by rotating the traction sheave 60 to raise and lower the car 1 and the counterweight 40.
  • the safety device 80 is separately installed at the upper part and the lower part of the car 1, and when the lifting speed of the car 1 reaches an abnormal speed, the guide rail 70 is gripped in an emergency to move the car 1 up and down. Give a braking force to
  • FIG. 1 shows the main configuration of a safety device 80 installed at the top of the car 1.
  • the battery 2 is mounted on the ceiling of the car 1 and the actuator 3 driven by the battery 2 is supported.
  • a motor or a solenoid may be used as a power source of the actuator 3, but in order to miniaturize the actuator 3, it is preferable to use a motor.
  • a gear 4 is coupled to the rotation shaft of the actuator 3.
  • a drive shaft 5 having teeth meshing with the gear 4 is supported on the ceiling of the car 1 so as to move up and down, and is biased upward by a spring 6.
  • the drive shaft 5 extends to the lower side of the car 1 and one end of a V-shaped lever 7 is connected to the lower end of the drive shaft 5.
  • the V-shaped lever 7 is a lever whose angle on two sides is fixed, and the rotational direction is freely supported by a rotating shaft 7A provided below the car 1.
  • a linear lever 8 is provided at the lower part of the car 1, and the other end of the V-shaped lever 7 and one end of the lever 8 are connected by a link 9.
  • the lever 8 interlocks with the V-shaped lever 7, and the rotational direction is freely supported by the rotation shaft 8 A provided at the lower part of the car 1.
  • the upper end of the pull-up rod 10a is connected to the other end of the V-shaped lever 7, and the wedge 11a is connected to the lower end thereof.
  • the pull-up rod 10a passes through an emergency stop device 12a supported and fixed to the lower part of the car 1, and its lower end is fixed to the wedge 11a.
  • the upper end portion of the pull-up rod 10b is connected to the other end of the lever 8, and the wedge 11b is connected to the lower end portion thereof.
  • the pull-up rod 10b passes through an emergency stop device 12b supported and fixed to the lower part of the car 1, and its lower end is fixed to the wedge 11b.
  • the biasing force of the spring 6 is transmitted to the wedges 11a and 11b via a link device such as the drive shaft 5, the V-shaped lever 7, the lever 8, the link 9, and the pulling rods 10a and 10b. Therefore, the wedges 11a and 11b are always biased upward.
  • the abnormal speed detection device 16 installed in the machine room 120 or the like detects that the elevation of the car 1 has reached the abnormal speed (for example, 1.3 times the rated speed), the power supply to the actuator 3 is stopped. , Electrically discharged.
  • the safety device 80 can grip the guide rail 70 by engagement between the wedge 11 and the safety gear 12, and a braking force is applied to the car 1. As a result, the car 1 is stopped.
  • the operation of returning from FIG. 2 to FIG. 1 will be described in detail.
  • the V-shaped lever 7 is rotated counterclockwise around the rotation shaft 7A, and as a result of pushing down the pull-up rod 10a connected to the V-shaped lever 7, the wedge 11a is released from the safety gear 12a. Further, the counterclockwise rotation of the V-shaped lever 7 is transmitted to the lever 8 by the link 9 and causes the lever 8 to rotate clockwise around the rotation shaft 8A. For this reason, the pull-up rod 10b is pushed down, the wedge 11b is released from the safety gear 12b, and the state shown in FIG. 1 is obtained again.
  • the actuator 3 since the actuator 3 includes the battery 2, the actuator 3 can be operated even when the commercial power supply is in a power failure state, so the stopped car 1 can be moved. It is possible to return to the nearest floor and perform rescue work etc. by moving it to the nearest floor.
  • a link device is provided that is pulled up so that the wedges 11a, 11b are engaged with the safety gear 12a, 12b by the spring 6, and in the steady state, the actuator 3
  • the wedges 11a and 11b are held in a non-engaged state from the locking devices 12a and 12b, while the actuator 3 is discharged when the abnormal speed detection device 16 detects an abnormal speed of the car 1, and the link device is operated by the spring 6.
  • the wedges 11a, 11b are to be pulled up to engage with the safety devices 12a, 12b via.
  • the wedges 11a and 11b are biased in the pull-up direction by the spring 6, the wedges 11a and 11b can be operated using a spring force with a simple configuration. Further, since it is not necessary to engage the safety gear 12a, 12b and the wedges 11a, 11b via the conventional governor rope, the on-site installation work using the governor rope becomes unnecessary. , Can simplify the work.
  • the actuator 3 is installed at the top of the car 1 and the battery 2 for driving the actuator 3 at the time of a power failure is provided at the top of the car 1. According to such a configuration, even if the actuator 3 or the battery 2 breaks down, the operator can easily recover or replace parts by accessing the upper part of the car 1 and improve the reliability.
  • the wedge since the wedge is urged in the pull-up direction by the spring, the wedge can be operated using a spring force with a simple configuration. .
  • the field installation work using the governor rope becomes unnecessary and the work is simplified. can do.
  • FIG. 3 shows the main configuration of the safety device 80 installed at the lower part of the car 1, and as shown here, this embodiment arranges the actuator 3, the gear 4 and the battery 2 at the lower part of the car 1. It is an example.
  • the other configuration is the same as that of the first embodiment described above, and thus the description thereof is omitted.
  • the actuator 3 When the actuator 3, the gear 4 and the battery 2 are disposed at the lower part of the car 1 as described above, the height of the upper side of the car 1 can be reduced, and the height of the hoistway overhead can be shortened.
  • the present invention is not limited to the embodiments described above, and includes various modifications.
  • the embodiments described above are described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described. Further, part of the configuration of the embodiment can be replaced with the configuration of the other embodiment.

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  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

L'invention concerne un dispositif de sécurité pour ascenseur qui permet de déplacer une cale à l'aide d'une configuration comparativement simple. Un dispositif de sécurité pour ascenseur est un dispositif de sécurité qui saisit un rail de guidage en engageant une cale et un dispositif d'arrêt d'urgence et arrête une cabine de passagers lorsque le mouvement de la cabine de passagers atteint une vitesse anormale, et est caractérisé en ce qu'il comprend un dispositif de détection de vitesse anormale qui détecte des vitesses anormales de la cabine de passagers, un arbre d'entraînement qui est relié à la cale, un actionneur qui applique une force d'entraînement à l'arbre d'entraînement, et un ressort qui applique une force de rappel à l'arbre d'entraînement, et en ce que la cale et le dispositif d'arrêt d'urgence s'opposent à la force de rappel du ressort et sont dans un état non engagé au moyen de la force d'entraînement de l'actionneur lorsque la cabine de passagers se déplace à une vitesse inférieure à la vitesse anormale, et les rails de guidage sont saisis avec la cale et le dispositif d'arrêt d'urgence dans un état engagé au moyen de la force de rappel appliquée par le ressort et la perte de courant vers l'actionneur lorsque la cabine de passagers atteint la vitesse anormale.
PCT/JP2017/041297 2017-11-16 2017-11-16 Dispositif de sécurité et ascenseur comprenant ce dernier WO2019097635A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2017/041297 WO2019097635A1 (fr) 2017-11-16 2017-11-16 Dispositif de sécurité et ascenseur comprenant ce dernier
JP2019554117A JP6834022B2 (ja) 2017-11-16 2017-11-16 安全装置、および、それを備えたエレベーター
CN201780096356.1A CN111278758A (zh) 2017-11-16 2017-11-16 安全装置、以及具备该安全装置的电梯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/041297 WO2019097635A1 (fr) 2017-11-16 2017-11-16 Dispositif de sécurité et ascenseur comprenant ce dernier

Publications (1)

Publication Number Publication Date
WO2019097635A1 true WO2019097635A1 (fr) 2019-05-23

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PCT/JP2017/041297 WO2019097635A1 (fr) 2017-11-16 2017-11-16 Dispositif de sécurité et ascenseur comprenant ce dernier

Country Status (3)

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JP (1) JP6834022B2 (fr)
CN (1) CN111278758A (fr)
WO (1) WO2019097635A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020083579A (ja) * 2018-11-28 2020-06-04 株式会社日立製作所 非常止め装置及びエレベーター

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3670416A1 (fr) 2018-12-20 2020-06-24 Otis Elevator Company Frein de sécurité pour un contrepoids activé par une couche de traction
CN113415689A (zh) * 2021-06-24 2021-09-21 北京房地天宇特种设备安装工程有限公司 一种电梯控制系统、方法及电梯

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002179353A (ja) * 2000-12-18 2002-06-26 Hitachi Ltd エレベーター制動装置
WO2005115905A1 (fr) * 2004-05-27 2005-12-08 Mitsubishi Denki Kabushiki Kaisha Contrôleur d'élévateur
JP2013112432A (ja) * 2011-11-25 2013-06-10 Mitsubishi Electric Corp エレベータ装置
JP2017013924A (ja) * 2015-06-29 2017-01-19 東芝エレベータ株式会社 エレベータ用速度検出装置およびエレベータ

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JPH11222366A (ja) * 1998-02-09 1999-08-17 Hitachi Ltd エレベーター用調速装置
CN1167595C (zh) * 1998-02-26 2004-09-22 三菱电机株式会社 电梯调速器的检查与调节方法
JP4709650B2 (ja) * 2003-10-07 2011-06-22 オーチス エレベータ カンパニー エレベータ用の遠隔リセット可能なロープ無し非常停止装置
JP2007030999A (ja) * 2005-07-22 2007-02-08 Hitachi Ltd エレベーター装置の安全装置およびエレベーター装置の運転方法
CN201703934U (zh) * 2010-05-31 2011-01-12 武汉凯锐机械制造有限公司 一种离心甩块式限速防坠安全器
CN205294538U (zh) * 2015-11-16 2016-06-08 戈尔电梯（天津）有限公司 一种安全钳联动装置
CN206486135U (zh) * 2016-09-05 2017-09-12 宁波奥德普电梯部件有限公司 一种电梯安全联动装置
CN106516933B (zh) * 2016-12-20 2018-01-09 刘英辉 一种电动式安全钳装置及电动式安全钳装置的制动方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002179353A (ja) * 2000-12-18 2002-06-26 Hitachi Ltd エレベーター制動装置
WO2005115905A1 (fr) * 2004-05-27 2005-12-08 Mitsubishi Denki Kabushiki Kaisha Contrôleur d'élévateur
JP2013112432A (ja) * 2011-11-25 2013-06-10 Mitsubishi Electric Corp エレベータ装置
JP2017013924A (ja) * 2015-06-29 2017-01-19 東芝エレベータ株式会社 エレベータ用速度検出装置およびエレベータ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020083579A (ja) * 2018-11-28 2020-06-04 株式会社日立製作所 非常止め装置及びエレベーター
JP7204448B2 (ja) 2018-11-28 2023-01-16 株式会社日立製作所 非常止め装置及びエレベーター

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CN111278758A (zh) 2020-06-12
JP6834022B2 (ja) 2021-02-24
JPWO2019097635A1 (ja) 2020-10-22

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