WO2018016061A1 - Ascenseur - Google Patents

Ascenseur Download PDF

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Publication number
WO2018016061A1
WO2018016061A1 PCT/JP2016/071473 JP2016071473W WO2018016061A1 WO 2018016061 A1 WO2018016061 A1 WO 2018016061A1 JP 2016071473 W JP2016071473 W JP 2016071473W WO 2018016061 A1 WO2018016061 A1 WO 2018016061A1
Authority
WO
WIPO (PCT)
Prior art keywords
speed
car
hoisting machine
detected
car speed
Prior art date
Application number
PCT/JP2016/071473
Other languages
English (en)
Japanese (ja)
Inventor
利治 松熊
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/JP2016/071473 priority Critical patent/WO2018016061A1/fr
Priority to CN201680086287.1A priority patent/CN109195897B/zh
Publication of WO2018016061A1 publication Critical patent/WO2018016061A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B66B1/30—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor
    • 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
    • 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
    • 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
    • B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical

Definitions

  • This invention relates to an elevator.
  • Patent Document 1 a hoisting machine speed detecting unit that detects the speed of the hoisting machine using an encoder attached to the hoisting machine, and a car speed detecting unit that detects the speed of the car using an encoder attached to the governor.
  • a speed controller that decelerates the speed of the hoist when an abnormality is detected, a speed of the hoist detected by the speed detector of the hoist and a car speed detected by the car speed detector It is described that a speed abnormality detection device that detects a rope slip from the difference between the two is provided, and the speed control unit adjusts the deceleration of the hoist according to the presence or absence of the rope slip by the speed abnormality detection device.
  • rope slip is detected only by the difference between the speed of the hoisting machine and the car speed obtained from the governor.
  • a rope slip is erroneously determined due to an abnormality in the speed detection of the hoisting machine or an abnormality in the encoder attached to the governor, and an error is detected in the rope slip, the speed detection error of the hoisting machine, or the encoder attached to the governor Abnormality may not be detected.
  • the present invention provides an electric motor, a hoisting machine driven by the electric motor, a rope hung on the hoisting machine, a hook connected to the rope, and a balance connected to the other end of the rope.
  • an elevator comprising a weight, a control device that controls the raising and lowering of the car, a hoisting machine speed detecting device that detects the rotational speed of the hoisting machine, and a car speed detecting device that detects the speed of the car
  • the control device is Detected by the speed control unit that transmits the rotational speed command determined based on the rotational speed of the hoisting machine to the electric motor, and the rotational speed of the hoisting machine detected by the hoisting machine speed detecting device and the car speed detecting device
  • An elevator comprising a speed abnormality detection unit that detects an abnormality of the hoisting machine speed detection device based on the car speed and the speed command transmitted from the speed control unit to the electric motor.
  • an abnormality of the hoisting machine speed detecting device an abnormality of the car speed detecting device, and sheave wear or main rope slip of the hoisting machine can be detected.
  • Example 1 of this invention It is a figure when the structure of Example 1 of this invention is shown and a cage
  • FIG. 1 is an overall view of an elevator control apparatus showing an embodiment of the present invention.
  • the elevator according to the present embodiment is a traction type elevator using friction between a main rope and a hoisting machine, and includes an electric motor 2 for raising and lowering the elevator.
  • a hoisting machine 1 driven by the electric motor 2 is attached to the rotating shaft of the electric motor 2.
  • the elevator car 7 is connected to the counterweight 8 and the counterweight via the hoisting machine 1 by the main rope 9.
  • the hoisting machine 1 is provided with a machine encoder 3 as a rotational speed detecting means for outputting a pulse corresponding to the rotational speed of the hoisting machine 1.
  • This machine encoder 3 is for detecting the rotational speed of the hoisting machine.
  • the governor 4 having a pulley is attached to the upper part of the hoistway where the car 7 moves up and down.
  • a governor rope 10 is attached between the pulley of the governor 4 and the pulley 5 attached to the lower part of the hoistway.
  • the speed governor rope 10 is connected to the car 7 at both ends, circulates as the car 7 is raised and lowered, and rotates the pulley of the speed governor 4 as the speed governor rope 10 circulates.
  • the governor 4 is provided with a governor encoder 6 as a rotational speed detecting means for outputting a pulse corresponding to the rotational speed of the pulley of the governor 4.
  • the governor encoder 6 is for detecting the car speed.
  • the machine encoder 3 for detecting the rotational speed of the hoist 1 and the governor encoder 6 for detecting the car speed are connected to a control device 15 that controls the car 7 to move up and down.
  • the control device 15 includes a hoisting machine speed detection unit 11 connected to the machine encoder 3.
  • the hoisting machine speed detector 11 receives the pulse signal output from the machine encoder 3 and calculates the rotational speed of the hoisting machine 1 based on the input pulse signal.
  • the control device 15 includes a car speed detection unit 12 connected to the governor encoder 6.
  • the car speed detector 12 receives the pulse signal output from the governor encoder 6 and calculates the ascending / descending speed of the car 7 based on the input pulse signal.
  • the machine encoder 3 and the hoisting machine speed detecting unit 11 are collectively referred to as a hoisting machine speed detecting device
  • the governor encoder 6 and the car speed detecting unit 12 are collectively referred to as a car speed detecting device.
  • the control device 15 includes a speed control unit 13 that controls the driving of the electric motor 2 and is detected by the rotational speed of the hoisting machine 1 detected by the hoisting machine speed detecting device and the car speed detecting device.
  • the speed of the car 7 is input.
  • the speed control unit 13 controls the rotation of the electric motor 2 using the rotation speed of the hoisting machine 1 detected by the hoisting machine speed detecting device as a feedback value.
  • control device 15 includes a speed abnormality detection unit 14.
  • the speed abnormality detecting unit 14 includes a rotation speed of the hoisting machine 1 detected by the hoisting machine speed detecting device, an ascending / descending speed of the car 7 detected by the car speed detecting device, and a speed control unit 13.
  • the calculated rotation speed command value of the motor 2 is input, the difference between the rotation speed of the hoisting machine 1 and the speed of the car 7, the difference between the rotation speed command value of the motor 2 and the rotation speed of the hoisting machine 1, the motor 2
  • the difference between the rotational speed command value and the speed of the car 7 is calculated. These differences are compared with a predetermined determination value to determine whether the hoisting machine speed detecting device and the car speed detecting device are normal or abnormal.
  • the speed abnormality detection device 14 is such that the difference between the rotational speed of the hoisting machine 1 and the speed of the car 7 is a predetermined value or more, and the difference between the rotational speed command value of the electric motor 2 and the rotational speed of the hoisting machine 1. Is determined to be abnormal in the hoisting machine speed detection device.
  • the difference between the rotational speed of the hoist 1 and the speed of the car 7 is greater than a predetermined value, the difference between the rotational speed command value of the motor 2 and the speed of the car 7 is greater than a predetermined value, and the rotational speed command value of the motor 2 is When the speed of the car 7 is smaller than the speed of the car 7 or the speed of the car 7 is 0, it is determined that the car speed detecting device is abnormal.
  • the difference between the rotational speed of the hoist 1 and the speed of the car 7 is greater than or equal to a predetermined value, the rotational speed command value of the motor 2 is greater than the predetermined value of the speed of the car 7, and the rotational speed command value of the motor 2 is When the speed is higher than the speed of the car 7, it is determined that the rope slip of the main rope 9 or the sheave wear of the hoisting machine 1 occurs.
  • the difference between the rotational speed of the hoisting machine 1 and the speed of the car 7 and the difference between the rotational speed command value of the electric motor 2 and the rotational speed of the hoisting machine 1, the rotational speed command value of the electric motor 2 and the speed of the car 7 The predetermined value for comparing the differences is determined from the worst value satisfying the performance of the elevator such as landing accuracy.
  • the speed control unit 13 feeds back the speed of the car 7 detected by the car speed detecting unit 12 as a feedback value. And the motor 2 is controlled.
  • the speed control unit 13 uses the rotation speed of the hoisting machine 1 detected by the hoisting machine speed detection unit 11 as a feedback value. Take control. In this case, the abnormality of the basket speed detecting device is stored and output to the management center or the display device.
  • the speed abnormality detection device 14 determines that the hoisting machine speed detection device is abnormal, and the speed control unit 13 switches the speed of the car 7 detected by the car speed detection unit 12 to a feedback value and transmits it to the motor 2.
  • the difference between the speed command to be performed and the speed of the car 7 detected by the car speed detecting unit 12 is equal to or greater than a predetermined value, the car speed detecting unit 12 is determined, and the electric motor 2 is emergency stopped.
  • FIG. 2 is a flowchart showing the operation of the elevator control device 15 according to the first embodiment.
  • the speed abnormality detection device 14 determines whether the difference between the rotational speed of the hoist 1 and the speed of the car 7 is equal to or less than a first predetermined value (step S1). If it is determined in step S1 that the difference is equal to or smaller than the predetermined value (YES in step S1), it is determined that there is no abnormality, and normal operation is continued toward the destination floor, and step S1 is performed until arrival at the destination floor (step S8). If it is determined that the difference is greater than the first predetermined value (NO in step S1), it is determined whether the difference between the rotational speed command value of the electric motor 2 and the rotational speed of the hoisting machine 1 is equal to or less than a second predetermined value. (Step S2).
  • step S3 If it is determined that the difference calculated in step S2 is equal to or less than the second predetermined value (YES in step S2), whether the speed of the car 7 is 0 or the rotation speed command value of the electric motor 2 is less than the speed of the car 7 Judgment is made (step S3).
  • the speed abnormality detection device 14 Judge as failure. In this case, since normal operation is not affected, normal operation is continued toward the destination floor, and step S1 is performed until arrival at the destination floor (step S8). In addition, although normal operation was continued here, you may make it move to the nearest floor and stop.
  • step S3 If it is determined in step S3 that the rotational speed command value of the electric motor 2 is larger than the speed of the car 7 (NO in step S3), the speed abnormality detection device 14 detects the sheave wear of the hoist 1 or the main rope 9 And a signal for switching the speed feedback value to the speed control unit 13 from the speed detected by the hoisting machine speed detecting device to the speed detected by the car speed detecting device is output.
  • the speed control unit 13 receives the signal and switches the speed feedback value from the speed detected by the hoisting machine speed detecting device to the speed detected by the car speed detecting device, and continues control of the electric motor 2 (step S4).
  • step S2 If it is determined that the difference calculated in step S2 is greater than the predetermined value (NO in step S2), the speed abnormality detection device 14 determines that the hoisting machine speed detection device is out of order and returns to the speed control unit 13. A signal for switching the speed feedback value from the speed detected by the hoisting machine speed detecting device to the speed detected by the car speed detecting device is output.
  • the speed control unit 13 receives the signal and switches the speed feedback value from the speed detected by the hoisting machine speed detecting device to the speed detected by the car speed detecting device, and continues control of the electric motor 2 (step S5).
  • Step S6 After the speed feedback value is switched from the speed detected by the hoisting machine speed detecting device to the speed detected by the car speed detecting device, it is determined whether the difference between the rotational speed command value of the motor 2 and the speed of the car 7 is equal to or less than a predetermined value. (Step S6). Thereafter, normal operation is continued toward the destination floor, and step S1 is performed until arrival at the destination floor (step S8).
  • step S6 If the difference between the rotational speed command value of the electric motor 2 and the speed of the car 7 is equal to or smaller than a predetermined value in step S6 (YES in step S6), the car speed detection device is determined to be normal and normal operation is performed toward the destination floor. And step S1 is carried out until the destination floor arrives (step S8). If the difference between the rotational speed command value of the electric motor 2 and the speed of the car 7 is larger than the predetermined value in step S6 (NO in step S6), both the hoisting machine speed detecting device and the car speed detecting device are out of order. It determines with having carried out, it stops an elevator and stops driving
  • the elevator according to the first embodiment compares the rotational speed of the hoist 1, the speed of the car 7, and the rotational speed command value of the electric motor 2 calculated by the speed control unit 13.
  • the failure of the upper machine speed detection device, the failure of the car speed detection device, and the sheave wear of the hoisting machine 1 or the rope slip of the main rope 9 can be detected, and it is possible to cope with each failure. Even if one of the two speed detection devices fails, it is possible to continue normal operation by controlling the motor 2 of the speed control unit 13 with the speed feedback value of the normal speed detection device. .
  • the car can be moved to the nearest floor more safely by using the other speed detection device without performing normal operation.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

La présente invention aborde un sujet de la documentation en matière de brevets (1), selon laquelle la détection du glissement de la corde uniquement sur la base de la différence entre la vitesse d'une machine de levage et la vitesse de la cabine déterminée à partir d'un régulateur de vitesse pourrait engendrer des problèmes ; à savoir la non détection d'anomalies dans la détermination du glissement de la corde et la détection de la vitesse de la machine de levage ainsi que des anomalies dans un codeur monté sur le régulateur de vitesse. Pour résoudre le problème mentionné ci-dessus, la présente invention concerne un ascenseur muni d'un moteur électrique, d'une machine de levage entraînée par le moteur électrique, d'un câble enroulé autour de la machine de levage, d'une cabine, d'un dispositif de commande qui commande le mouvement vertical de la cabine, d'un dispositif de détection de vitesse de la machine de levage qui détecte la vitesse de rotation de la machine de levage, et d'un dispositif de détection de la vitesse de la cabine qui détecte la vitesse de la cabine, le dispositif de commande étant doté d'une unité de commande de vitesse qui transmet, au moteur électrique, une instruction de vitesse de rotation déterminée sur la base de la vitesse de rotation de la machine de levage et d'une unité de détection d'anomalie liée à la vitesse qui détecte une anomalie dans le dispositif de détection de vitesse de machine de levage sur la base de la vitesse de rotation de la machine de levage détectée par le dispositif de détection de vitesse de machine de levage, la vitesse de la cabine détectée par le dispositif de détection de la vitesse de la cabine et l'instruction de vitesse transmise au moteur électrique en provenance de l'unité de commande de vitesse.
PCT/JP2016/071473 2016-07-22 2016-07-22 Ascenseur WO2018016061A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2016/071473 WO2018016061A1 (fr) 2016-07-22 2016-07-22 Ascenseur
CN201680086287.1A CN109195897B (zh) 2016-07-22 2016-07-22 电梯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/071473 WO2018016061A1 (fr) 2016-07-22 2016-07-22 Ascenseur

Publications (1)

Publication Number Publication Date
WO2018016061A1 true WO2018016061A1 (fr) 2018-01-25

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Application Number Title Priority Date Filing Date
PCT/JP2016/071473 WO2018016061A1 (fr) 2016-07-22 2016-07-22 Ascenseur

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CN (1) CN109195897B (fr)
WO (1) WO2018016061A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020115883A1 (fr) * 2018-12-06 2020-06-11 三菱電機ビルテクノサービス株式会社 Dispositif de surveillance pour empêcher le piégeage des passagers d'un ascenseur
WO2023170873A1 (fr) * 2022-03-10 2023-09-14 三菱電機株式会社 Système d'ascenseur
CN117775917A (zh) * 2024-02-27 2024-03-29 通用电梯股份有限公司 一种钢丝绳曳引驱动电梯曳引力快速检测方法及装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022185511A1 (fr) * 2021-03-05 2022-09-09 三菱電機ビルテクノサービス株式会社 Dispositif d'ascenseur

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5318157A (en) * 1976-07-30 1978-02-20 Mitsubishi Electric Corp Elevator safety device
JPH0445077A (ja) * 1990-06-11 1992-02-14 Mitsubishi Electric Corp エレベータの制御装置
JPH05254742A (ja) * 1992-03-12 1993-10-05 Hitachi Ltd 油圧エレベーターの制御装置
JPH06144721A (ja) * 1992-10-30 1994-05-24 Mitsubishi Electric Corp エレベータの制御装置
WO2009078100A1 (fr) * 2007-12-19 2009-06-25 Mitsubishi Electric Corporation Dispositif élévateur

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JPH0859125A (ja) * 1994-08-26 1996-03-05 Mitsubishi Electric Corp リニアモータエレベーターの運転方法
JP3309648B2 (ja) * 1995-06-22 2002-07-29 三菱電機株式会社 エレベータの制御装置
US7637357B2 (en) * 2004-09-09 2009-12-29 Mitsubishi Electric Corporation Elevator apparatus with sheave rotational speed difference determination for detecting an abnormality
JP5084113B2 (ja) * 2005-04-19 2012-11-28 三菱電機株式会社 エレベーター装置の異常検出装置
JP4685803B2 (ja) * 2007-01-10 2011-05-18 株式会社日立製作所 エレベーターブレーキ制御装置
JP5247690B2 (ja) * 2007-06-21 2013-07-24 三菱電機株式会社 エレベータの安全装置
JP5977652B2 (ja) * 2012-11-21 2016-08-24 株式会社日立製作所 エレベータの制御装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5318157A (en) * 1976-07-30 1978-02-20 Mitsubishi Electric Corp Elevator safety device
JPH0445077A (ja) * 1990-06-11 1992-02-14 Mitsubishi Electric Corp エレベータの制御装置
JPH05254742A (ja) * 1992-03-12 1993-10-05 Hitachi Ltd 油圧エレベーターの制御装置
JPH06144721A (ja) * 1992-10-30 1994-05-24 Mitsubishi Electric Corp エレベータの制御装置
WO2009078100A1 (fr) * 2007-12-19 2009-06-25 Mitsubishi Electric Corporation Dispositif élévateur

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020115883A1 (fr) * 2018-12-06 2020-06-11 三菱電機ビルテクノサービス株式会社 Dispositif de surveillance pour empêcher le piégeage des passagers d'un ascenseur
JPWO2020115883A1 (ja) * 2018-12-06 2021-02-15 三菱電機ビルテクノサービス株式会社 エレベーターの利用者の閉じ込めを回避させる監視装置
WO2023170873A1 (fr) * 2022-03-10 2023-09-14 三菱電機株式会社 Système d'ascenseur
CN117775917A (zh) * 2024-02-27 2024-03-29 通用电梯股份有限公司 一种钢丝绳曳引驱动电梯曳引力快速检测方法及装置
CN117775917B (zh) * 2024-02-27 2024-04-26 通用电梯股份有限公司 一种钢丝绳曳引驱动电梯曳引力快速检测方法及装置

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Publication number Publication date
CN109195897B (zh) 2021-04-06
CN109195897A (zh) 2019-01-11

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