WO2018216162A1 - Appareil de commande d'ascenseur - Google Patents

Appareil de commande d'ascenseur Download PDF

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Publication number
WO2018216162A1
WO2018216162A1 PCT/JP2017/019526 JP2017019526W WO2018216162A1 WO 2018216162 A1 WO2018216162 A1 WO 2018216162A1 JP 2017019526 W JP2017019526 W JP 2017019526W WO 2018216162 A1 WO2018216162 A1 WO 2018216162A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
car
torque
pressing force
control device
Prior art date
Application number
PCT/JP2017/019526
Other languages
English (en)
Japanese (ja)
Inventor
新平 桃木
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2019519898A priority Critical patent/JP6742516B2/ja
Priority to CN201780090860.0A priority patent/CN110650911B/zh
Priority to PCT/JP2017/019526 priority patent/WO2018216162A1/fr
Publication of WO2018216162A1 publication Critical patent/WO2018216162A1/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
    • B66B1/32—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on braking devices, e.g. acting on electrically controlled brakes
    • 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

Definitions

  • This invention relates to an elevator control device capable of calculating the brake torque of an elevator hoist.
  • the present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator control device in which the time required to open a car door is short and the traveling time of the car is short.
  • the elevator control device includes a rotatable sheave, a motor that drives the sheave, a braking member attached to the sheave, and a rotation of the braking member and the sheave by being pressed against the braking member.
  • An elevator control device having a hoisting machine having a brake for braking and lifting and lowering a counterweight and a counterweight suspended by a rope wound around a sheave by controlling the hoisting machine.
  • the motor control unit that controls the rotation of the motor, the brake control unit that controls the brake, and the brake are pressed so that a constant torque is applied to the system including the car and the counterweight before the car is landed.
  • a pressing force measuring unit that measures the pressing force applied to the braking member, and a brake torque calculating unit that calculates the brake torque of the brake
  • the rake control unit controls the brake to be pressed against the braking member with a constant torque applied by the motor control unit, and the pressing force measurement unit measures the pressing force with the constant torque applied.
  • the brake torque calculation unit calculates the brake torque when the car is landed on the basis of the measured pressing force and a constant torque.
  • the elevator control apparatus of the present invention when a constant torque is applied to the system including the car and the counterweight before the car is landed, the braking operation is performed in a state where the constant torque is applied. Based on the measured pressing force, the brake torque when the car is landed is calculated. As a result, it is possible to obtain an elevator with a short time until the car door is opened and a short running time of the car.
  • FIG. 1 is an enlarged cross-sectional view showing a brake and pressing force measuring unit in the first embodiment. It is a graph showing the time change of the relative displacement with respect to the field of an armature.
  • FIG. 1 is a cross-sectional view showing an overall configuration of an elevator provided with an elevator control apparatus according to Embodiment 1 of the present invention.
  • FIG. 2 is an enlarged side view of the elevator hoist 4 shown in FIG.
  • FIG. 3 is an enlarged front view of the elevator hoist 4 shown in FIG.
  • an elevator provided with the elevator control device according to the first embodiment is suspended from a rope 1, a car 2 suspended from one end of the rope 1, and the other end of the rope 1.
  • the balance weight 3, the hoisting machine 4 around which the rope 1 is wound, and the control panel 5 for controlling the hoisting machine 4 are provided.
  • the car 2 and the counterweight 3 are moved up and down when the hoist 4 is controlled by the control panel 5.
  • the control panel 5 functions as the elevator control device of the present invention, a part of the elevator control device may be in a portion other than the control panel 5.
  • the hoisting machine 4 includes a rotatable sheave 41, a motor 43 that is connected to the sheave 41 via a shaft 42 and drives the sheave 41 to rotate, A brake member 44 attached to the sheave 41, a brake 45 that brakes the rotation of the brake member 44 and the sheave 41 by being pressed against the brake member 44, and a bearing 46 that rotatably supports the shaft 42 are provided.
  • the braking member 44 is a disk-shaped disc, but may be a cylindrical drum.
  • the rope 1 shown in FIG. 1 is wound around a sheave 41 of the hoisting machine 4.
  • the sheave 41 is rotated by the motor 43, the car 2 and the counterweight 3 suspended from the rope 1 are moved up and down.
  • the brake 45 brakes the rotation of the brake member 44 and the sheave 41 by pressing a part of the brake 45 against the brake member 44.
  • FIG. 4 is a block diagram showing the configuration of the elevator control apparatus according to Embodiment 1 of the present invention.
  • the elevator control device is configured by the control panel 5 and the pressing force measuring unit 61.
  • a CPU, a ROM, a RAM, a hard disk, and the like are provided instead of the control panel 5, a CPU, a ROM, a RAM, a hard disk, and the like are provided.
  • a general-purpose computer may be used.
  • the elevator control apparatus includes a motor control unit 51 that controls the rotation of the motor 43, a brake control unit 52 that controls the brake 45, a brake torque calculation unit 53 that calculates the brake torque of the brake 45, and the brake 45.
  • a pressing force measuring unit 61 that measures the pressing force applied to the braking member 44 when is pressed against the braking member 44 is provided. The pressing force measuring unit 61 is attached to the brake 45 of the hoisting machine 4.
  • the motor control unit 51 controls the rotation of the motor 43 to change the rotation speed of the sheave 41 and raise and lower the car 2 and the counterweight 3.
  • the brake control unit 52 controls the brake 45 so that a part of the brake 45 is pressed against the braking member 44 when the car 2 is almost stopped near the floor door, and brakes the rotation of the braking member 44 and the sheave 41. . Thereby, the car 2 can be stably stopped at the position of the door on the floor.
  • FIG. 5 is a flowchart showing the procedure for calculating the brake torque performed by the elevator control apparatus according to Embodiment 1 of the present invention.
  • FIG. 6 is a graph showing changes in brake torque over time in the brake torque calculation process shown in FIG. In FIG. 6, a certain torque applied to the system including the car 2 and the counterweight 3 is also shown.
  • the motor control unit 51 controls the rotation of the motor 43 so that a constant torque T cw is applied to the system including the car 2 and the counterweight 3 before the car 2 is landed (step S101). Run 2 slightly. The timing at which a constant torque T cw is applied to the system including the car 2 and the counterweight 3 is just before the car 2 is landed and the car 2 is stopped or at a low speed. .
  • the constant torque T cw applied to the system including the car 2 and the counterweight 3 can be a torque applied to the system including the car 2 and the counterweight 3 when there is no load inside the car 2. Thereby, the load applied to the motor 43 can be reduced.
  • the constant torque applied to the system including the car 2 and the counterweight 3 does not change depending on the load inside the car 2. In other words, it is constant regardless of the weight of passengers and luggage inside the car 2.
  • the brake control unit 52 performs control so as to press the brake 45 against the braking member 44 (step S102).
  • the brake torque gradually rises as shown in FIG. In FIG. 6, the brake torque of the brake 45 is indicated by T bk (t).
  • the pressing force measuring unit 61 measures the pressing force F (a) applied to the braking member 44 (step S103).
  • the timing at which the car 2 and the counterweight 3 start to decelerate is equal to the constant torque T cw applied to the system including the car 2 and the counterweight 3 and the brake torque T bk (a) at the time point a.
  • the brake torque applied to the brake 45 reaches the maximum value T bk at the time of FIG. 6b , and the car 2 reaches the floor.
  • the pressing force measuring unit 61 measures the pressing force F (b) applied to the braking member 44 again (step S104).
  • the brake torque calculation unit 53 is applied to the system including the pressing force F (a) measured in step S103, the pressing force F (b) measured in step S104, and the car 2 and the counterweight 3.
  • the brake torque T bk of the brake 45 when the car 2 is landed is calculated based on the torque T cw (step S105).
  • step S105 the brake torque calculation unit 53 calculates the brake torque T bk when the car 2 is landed using the following equation.
  • T bk (a) T cw (1)
  • step S104 the pressing force F (b) when the car 2 is landed can be measured when the car 2 is landed. For this reason, in step S105, the final brake torque T bk when the car 2 is landed can be calculated immediately.
  • step S105 the ratio T cw / F (a) of the constant force T cw applied to the system including the pressing force F (a) measured in step S103 and the car 2 and the counterweight 3 is calculated before step S105. You may make it do. Thereby, in step S105, the final brake torque T bk when the car 2 is landed can be calculated earlier.
  • the motor control unit 51 sets the car 2 to a predetermined stop floor. You may make it move to. This is because when the brake torque is smaller than the allowable threshold, the car 2 may move without stopping on the floor, so the door of the car 2 is not opened and the floor is not pushed up or pushed down. Is to move to.
  • the floor on which the car 2 is moved is a floor that does not cause high-speed push-up and high-speed push-down. This is because when the brake torque is insufficient, high-speed push-up on the top floor or high-speed push-down on the bottom floor may occur.
  • the car 2 is moved to the first floor to prevent the car 2 from being pushed down at high speed, and when the car 2 is light in weight, the car 2 Is moved to the 10th floor to prevent the car 2 from being pushed up at high speed.
  • the elevator control apparatus may include a car load measuring unit that measures the load inside the car 2. This is because when the load inside the car 2 fluctuates, the unbalance torque applied to the system including the car 2 and the counterweight 3 also fluctuates. Therefore, the torque applied to the system including the car 2 and the counterweight 3 is set to a constant value T cw. It is to make it.
  • FIG. 7 is an enlarged cross-sectional view showing the brake 45 and the pressing force measuring unit 61 in the first embodiment.
  • FIG. 7 also shows a braking member 44 that is a disk-shaped disc.
  • the brake 45 in the first embodiment is a disc brake, but a drum brake may be used.
  • the brake 45 in the first embodiment is positioned between the field 81 fixed to the hoisting machine 4, an armature 82 movable with respect to the field 81, and between the field 81 and the armature 82.
  • a braking spring 83 that presses against the braking member 44 and a coil 84 that attracts the armature 82 when an electric current flows are provided.
  • the armature 82 In a state where no current flows through the coil 84, the armature 82 is pressed against the brake member 44 by the brake spring 83, and the rotation of the brake member 44 is braked.
  • the coil 84 functions as an electromagnet and draws the armature 82 toward the field 81 side.
  • the armature 82 moves away from the braking member 44 and no braking force is applied to the braking member 44.
  • the field 81 bends.
  • the field 81 is originally a flat plate, when the armature 82 is pressed against the braking member 44, the field 81 is bent as shown in FIG. Since the deflection amount d due to the field 81 being deflected is proportional to the pressing force of the brake 45, the pressing force of the brake 45 can be measured by measuring the deflection amount d.
  • the pressing force measuring unit 61 is a displacement sensor that measures the relative displacement of the armature 82 with respect to the field 81.
  • the pressing force measuring unit 61 that is a displacement sensor is attached to the field 81.
  • FIG. 8 is a graph showing the time change of the relative displacement with respect to the field 81 of the armature 82.
  • the pressing force of the brake 45 can be measured by measuring the relative displacement of the armature 82 with respect to the field 81.
  • a displacement sensor that measures the relative displacement of the armature 82 with respect to the field 81 is used as the pressing force measuring unit 61.
  • the pressing force itself of the strain sensor that measures the distortion of the field 81 and the armature 45 is used.
  • the pressing force of the brake 45 may be measured using a sensor that measures the above.
  • the constant torque T cw applied to the system including the car 2 and the counterweight 3 may be large enough to cause the car 2 to travel slightly, so that the load on the motor 43 can be reduced.
  • the elevator control apparatus has been described above, but various modifications can be made within the scope of the idea of the present invention.
  • the constant torque T cw applied to the system including the car 2 and the counterweight 3 may be different from the torque applied to the system including the car 2 and the counterweight 3 when there is no load inside the car 2. .

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Control (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

Appareil de commande d'ascenseur qui, selon la présente invention, est conçu de telle sorte qu'une unité de commande de frein exécute une commande de manière à presser un frein sur un élément de freinage dans un état où un couple constant est appliqué par une unité de commande de moteur, une unité de mesure de force de pression mesure la force de pression dans l'état où un couple constant est appliqué, et une unité de calcul de couple de freinage calcule le couple de freinage utilisé lorsqu'une cabine arrive à un étage sur la base de la force de pression mesurée et du couple constant.
PCT/JP2017/019526 2017-05-25 2017-05-25 Appareil de commande d'ascenseur WO2018216162A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2019519898A JP6742516B2 (ja) 2017-05-25 2017-05-25 エレベータの制御装置
CN201780090860.0A CN110650911B (zh) 2017-05-25 2017-05-25 电梯的控制装置
PCT/JP2017/019526 WO2018216162A1 (fr) 2017-05-25 2017-05-25 Appareil de commande d'ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/019526 WO2018216162A1 (fr) 2017-05-25 2017-05-25 Appareil de commande d'ascenseur

Publications (1)

Publication Number Publication Date
WO2018216162A1 true WO2018216162A1 (fr) 2018-11-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/019526 WO2018216162A1 (fr) 2017-05-25 2017-05-25 Appareil de commande d'ascenseur

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JP (1) JP6742516B2 (fr)
CN (1) CN110650911B (fr)
WO (1) WO2018216162A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7024898B1 (ja) * 2021-02-10 2022-02-24 三菱電機株式会社 ブレーキ開放装置

Citations (5)

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JP2005263371A (ja) * 2004-03-17 2005-09-29 Mitsubishi Electric Corp エレベータの制御装置
JP2008133096A (ja) * 2006-11-28 2008-06-12 Toshiba Elevator Co Ltd エレベータ
JP2013234696A (ja) * 2012-05-08 2013-11-21 Toshiba Elevator Co Ltd エレベータのブレーキ装置
JP2015127261A (ja) * 2013-11-26 2015-07-09 三菱電機株式会社 エレベータの制御装置およびエレベータの制御方法
WO2015118746A1 (fr) * 2014-02-06 2015-08-13 三菱電機株式会社 Dispositif de commande d'ascenseur et procédé de commande d'ascenseur

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JPH075251B2 (ja) * 1988-01-28 1995-01-25 三菱電機株式会社 エレベータの制御装置
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JP6216238B2 (ja) * 2013-12-06 2017-10-18 株式会社日立製作所 エレベーター
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Publication number Priority date Publication date Assignee Title
JP2005263371A (ja) * 2004-03-17 2005-09-29 Mitsubishi Electric Corp エレベータの制御装置
JP2008133096A (ja) * 2006-11-28 2008-06-12 Toshiba Elevator Co Ltd エレベータ
JP2013234696A (ja) * 2012-05-08 2013-11-21 Toshiba Elevator Co Ltd エレベータのブレーキ装置
JP2015127261A (ja) * 2013-11-26 2015-07-09 三菱電機株式会社 エレベータの制御装置およびエレベータの制御方法
WO2015118746A1 (fr) * 2014-02-06 2015-08-13 三菱電機株式会社 Dispositif de commande d'ascenseur et procédé de commande d'ascenseur

Also Published As

Publication number Publication date
JPWO2018216162A1 (ja) 2019-11-07
CN110650911B (zh) 2021-11-16
CN110650911A (zh) 2020-01-03
JP6742516B2 (ja) 2020-08-19

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