WO2012140720A1 - Appareil d'ascenseur - Google Patents

Appareil d'ascenseur Download PDF

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Publication number
WO2012140720A1
WO2012140720A1 PCT/JP2011/059017 JP2011059017W WO2012140720A1 WO 2012140720 A1 WO2012140720 A1 WO 2012140720A1 JP 2011059017 W JP2011059017 W JP 2011059017W WO 2012140720 A1 WO2012140720 A1 WO 2012140720A1
Authority
WO
WIPO (PCT)
Prior art keywords
car
acceleration
door
rope
sheave
Prior art date
Application number
PCT/JP2011/059017
Other languages
English (en)
Japanese (ja)
Inventor
峰夫 岡田
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 PCT/JP2011/059017 priority Critical patent/WO2012140720A1/fr
Publication of WO2012140720A1 publication Critical patent/WO2012140720A1/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
    • 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
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces

Definitions

  • This invention relates to an elevator apparatus, and more particularly to an apparatus for more reliably preventing door-opening travel.
  • a car door open state is detected by a door-open detector, and a door-open detection signal is input to a door-open travel abnormality determination circuit.
  • a current command signal from the speed control circuit is also input to the door opening running abnormality determination circuit together with the door opening detection signal.
  • the door open running abnormality determining circuit outputs an emergency stop command signal to the inverter control circuit when it is determined from the two input signals that the car has started running in the door open state (for example, , See Patent Document 1).
  • the present invention has been made to solve the above-described problems, and even when a high acceleration occurs in the car due to a control runaway or the like with the car door or the landing door opened, the car can be quickly moved.
  • An object is to obtain an elevator apparatus that can be stopped.
  • An elevator apparatus includes a car having a car door, a plurality of landing doors respectively provided at a plurality of halls, a braking device for braking the car, a mass body that operates in relation to the movement of the car, and an acceleration of the car And at least one of an acceleration detection mechanism for detecting that an acceleration exceeding a preset value is generated in the car, and a car door and a landing door are opened using the force generated in the mass body
  • the safety monitoring unit is provided to stop the car by the braking device.
  • the elevator apparatus it is detected that an acceleration exceeding a preset set value is generated in the car using a force generated in the mass body according to the acceleration of the car, and at least the car door and the landing door are detected.
  • the acceleration detection mechanism detects that an acceleration exceeding the set value has occurred with any one of the doors open, the car is stopped by the braking device, so that the car door or the landing door is open. Even when a high acceleration occurs in the car due to control runaway or the like, the car can be quickly stopped.
  • FIG. 5 is a configuration diagram illustrating a state in which the car of FIG. 4 is accelerated downward with an acceleration ⁇ [m / s 2 ] with respect to the mass body.
  • FIG. 5 is a configuration diagram showing a state in which the car of FIG. 4 is accelerated upward with respect to the mass body at an acceleration ⁇ [m / s 2 ].
  • FIG. 7 is a circuit diagram showing a connection state of a car door opening detection switch, a landing door opening detection switch, and an acceleration detection switch of FIGS. It is a circuit diagram which shows the state which detected the door opening driving
  • FIG. 1 is a block diagram showing an elevator apparatus according to Embodiment 1 of the present invention.
  • a machine room 2 is provided in the upper part of the hoistway 1.
  • a hoisting machine (driving device) 3 is installed in the machine room 2.
  • the hoisting machine 3 includes a drive sheave 6, a hoisting machine motor that rotates the driving sheave 6, and a hoisting machine brake (electromagnetic brake) 7 as a brake device that brakes the rotation of the driving sheave 6. .
  • the hoisting machine brake includes a brake wheel (drum or disk) coupled coaxially with the drive sheave 6, a brake shoe that contacts and separates from the brake wheel, a brake spring that presses the brake shoe against the brake wheel and applies a braking force, And an electromagnetic magnet that releases the braking force by releasing the brake shoe from the brake wheel against the brake spring.
  • Suspension means 8 is wound around the drive sheave 6 and the deflecting wheel 4. As the suspension means 8, a plurality of ropes or a plurality of belts are used. A car 9 is connected to the first end of the suspension means 8. A counterweight 10 is connected to the second end of the suspension means 8.
  • the car 9 and the counterweight 10 are suspended in the hoistway 1 by the suspension means 8 and are raised and lowered in the hoistway 1 by the hoisting machine 3.
  • the control device 5 raises and lowers the car 9 at a set speed by controlling the rotation of the hoisting machine 3.
  • a pair of car guide rails 11 that guide the raising and lowering of the car 9 and a pair of counterweight guide rails 12 that guide the raising and lowering of the counterweight 10 are installed.
  • a car shock absorber 13 for buffering the collision of the car 9 with the hoistway bottom and a counterweight buffer 14 for buffering the collision of the counterweight 10 with the hoistway bottom are installed. ing.
  • an emergency stop device 15 that is engaged with the car guide rail 11 to stop the car 9 in an emergency is mounted.
  • the machine room 2 is provided with a first sheave 16.
  • a rope 17 is wound around the first sheave 16.
  • the rope 17 is laid circularly in the hoistway 1 and connected to the car 9.
  • the rope 17 is wound around a second sheave 18 provided at the lower part of the hoistway 1.
  • the mass body 19 that operates in association with the movement of the car 9 includes a first sheave 16, a rope 17, and a second sheave 18.
  • the connecting portion of the rope 17 to the car 4 detects that an acceleration exceeding a preset set value has occurred in the car 9 by using a force generated in the mass body 19 according to the acceleration of the car 9.
  • An acceleration detection mechanism 20 is provided.
  • the car 9 is provided with a car door 21 and a car door device 22 that drives the car door 21 to open and close.
  • the opening and closing of the car door 21 is controlled by the control device 5.
  • the landing doors 23a to 23d are provided at the landings on each floor.
  • the landing doors 23a to 23d are opened and closed in conjunction with the opening and closing of the car door 21 when the car 9 stops at the landing position.
  • landing door guide devices 24a to 24d for guiding the opening and closing movement of the corresponding landing doors 23a to 23d are provided.
  • FIG. 2 is a front view showing the car 9 in FIG. 1
  • FIG. 3 is a front view showing a state in which the car door 21 in FIG. 2 is opened.
  • the car door device 22 is provided with a car door open detection switch (car door open detecting means) 25 for detecting that the car door 21 is open.
  • the car door 21 is provided with a car door cam 26 for operating the car door open detection switch 25 when the car door 21 is open.
  • the landing door guide devices 24a to 24d detect landing door open detection switches 27a to 27d (FIGS. 7 and 8) that detect that the corresponding landing doors 23a to 23d are open. Is provided.
  • the landing doors 23a to 23d are provided with landing door cams (not shown) that operate the corresponding landing door open detection switches 27a to 27d when the corresponding landing doors 23a to 23d are open.
  • FIG. 4 is a configuration diagram showing the car 9 in FIG. 1 in an enlarged manner.
  • a mounting arm 31 is provided on the car 9.
  • the mounting arm 31 is provided with a hole through which the rope 17 passes.
  • First and second spring receivers 32 a and 32 b are fixed to the rope 17.
  • the first spring receiver 32 a is fixed to the rope 17 on the upper side of the attachment arm 31.
  • the second spring receiver 32 b is fixed to the rope 17 below the attachment arm 31.
  • the 1st press spring 33a as an elastic body is provided between the 1st spring receptacle 32a and the attachment arm 31, the 1st press spring 33a as an elastic body is provided. Between the second spring receiver 32b and the mounting arm 31, a second pressing spring 33b as an elastic body is provided. The rope 17 is passed through the first and second elastic bodies 33a and 33b.
  • the spring constants of the first and second pressing springs 33a and 33b are the same (k [N / m]).
  • the first and second spring receivers 32a and 32b are fixed to the rope 17 at positions where the first and second push springs 33a and 33b are compressed from the free length by X 0 [m].
  • a force of k ⁇ X 0 [N] acts on the rope 17 via the first spring receiver 32a by the first pressing spring 33a and the second spring by the second pressing spring 33b.
  • a force of k ⁇ X 0 [N] acts downward via the receiver 32b.
  • the rope 17 is stationary with respect to the car 9.
  • the cage 9 is provided with a first acceleration detection switch 34a operated by the first spring receiver 32a and a second acceleration detection switch 34b operated by the second spring receiver 32b.
  • the first acceleration detection switch 34a is operated when the first spring receiver 32a is displaced upward by X 1 [m] or more with respect to the car 9 from the position shown in FIG. 4 above the first spring receiver 32a. It is arranged at the position.
  • the second acceleration detection switch 34b is operated when the second spring receiver 32b is displaced downward by X 2 [m] or more with respect to the car 9 from the position shown in FIG. 4 below the second spring receiver 32b. It is arranged at the position. That is, the acceleration detection switches 34a and 34b are operated according to the expansion and contraction of the first and second push springs 33a and 33b.
  • the mass of the rope 17 is Mr [kg]
  • the inertia mass at the diameter around which the rope 17 of the first sheave 16 is wound is Ma [kg]
  • the rope 17 of the second sheave 18 is wound.
  • FIG. 5 is a configuration diagram showing a state in which the car 9 of FIG. 4 is accelerated downward with respect to the mass body 19 at an acceleration ⁇ [m / s 2 ].
  • An inertial force Fp [N] having a magnitude of is received upward.
  • the first acceleration detection switch 34a is operated when the first spring receiver 32a is displaced upward by X 1 [m] or more. Therefore, the acceleration ⁇ of the car 9 for operating the first acceleration detection switch 34a [m / s 2] from the formula (3), X 1 ⁇ (Mt ⁇ ⁇ ) / (2 ⁇ k) ⁇ ⁇ (2 ⁇ k ⁇ X 1 ) / (Mt) (4) It is necessary to be the size of.
  • the spring constant k [N / m] of the first and second push springs 33a and 33b, the position X 1 at which the first and second acceleration detection switches 34a and 34b are operated, and the inertial mass of the mass body 19 By adjusting Mt [kg], a downward acceleration exceeding a preset set value is generated in the car 9 using a force generated in the mass body 19 according to the acceleration of the car 9. Can be detected.
  • FIG. 6 is a configuration diagram illustrating a state in which the car 9 of FIG. 4 is accelerated upward with an acceleration ⁇ [m / s 2 ] with respect to the mass body 19, contrary to FIG. 5.
  • ⁇ ⁇ (2 ⁇ k ⁇ X 2 ) / (Mt) The second acceleration detection switch 34b is operated when the acceleration ⁇ is [m / s 2 ].
  • the spring constant k [N / m] of the first and second push springs 33a and 33b, the position X 2 where the first and second acceleration detection switches 34a and 34b are operated, and the inertial mass of the mass body 19 By adjusting Mt [kg], it is possible to detect that an upward acceleration exceeding the set value is generated in the car 9 by using a force generated in the mass body 19 according to the acceleration of the car 9. it can.
  • FIG. 7 is a circuit diagram showing a connection state of the car door opening detection switch 25, the landing door opening detection switches 27a to 27d, and the acceleration detection switches 34a and 34b of FIGS. 2 to 6, and FIG. It is a circuit diagram which shows the detected state.
  • the car door opening detection switch 25 and the landing door opening detection switches 27a to 27d are connected in series.
  • the first and second acceleration detection switches 34a and 34b are connected in series.
  • the door opening detection circuit including the car door opening detection switch 25 and the landing door opening detection switches 27a to 27d and the acceleration detection circuit including the first and second acceleration detection switches 34a and 34b are separate circuits, respectively.
  • the safety monitoring unit 35 is connected.
  • the safety monitoring unit 35 can be provided in the control device 5 or can be provided independently of the control device 5.
  • the safety monitoring unit 35 cuts off the power supply to the hoisting machine 3 when one or more of the detection switches 25, 27a to 27d and the first or second acceleration detection switches 34a, 34b are opened simultaneously. Stop the operation of the basket 9. In other words, the safety monitoring unit 35 detects that the acceleration detection mechanism 20 detects that an acceleration exceeding the set value has occurred in the car 9 with at least one of the car door 21 and the landing doors 23a to 23d opened. In addition, the car 9 is immediately stopped by the hoisting machine brake 7.
  • Such a function of the safety monitoring unit 35 can be realized by, for example, a microcomputer or a logic circuit.
  • the elevator apparatus is provided with a door-open travel protection device.
  • the door open travel protection device stops the car 9 by the hoisting machine brake 7 when the car 9 is raised or lowered by a preset door open travel detection distance while the car door 21 is open.
  • the door open travel detection distance set in this door open travel protection device is defined as p [m].
  • L [m] be an allowable deviation distance (determined by laws and regulations or the structure of the elevator apparatus) between the floor surface of the car 9 and the floor surface of the hall with the door open.
  • the safety monitoring section 35 is a deceleration when stopping the cut off driving of the car 9 power supply to the hoisting machine 3, ⁇ 2 [m / s 2].
  • ⁇ 1 ((L ⁇ p) / p) ⁇ ⁇ 2 (6)
  • the acceleration ⁇ [m / s 2 ] in the equations (4) and (5) is made smaller than the acceleration ⁇ 1 [m / s 2 ] in the equation (6).
  • the first or second sheaves 16, 18 may also serve as a governor sheave, and the rope 17 may also serve as a governing rope.
  • the rope 17 is connected to the operating lever of the safety device 15 via the acceleration detection mechanism 20.
  • the governor it is mechanically detected that the traveling speed of the car 9 has reached an overspeed.
  • a first overspeed Vos higher than the rated speed Vo and a second overspeed Vtr higher than the first overspeed are set.
  • the acceleration setting value in the acceleration detection mechanism 20 is sufficiently smaller than the acceleration when the car 9 is free-falling, and is set to a value smaller than the first overspeed Vos of the governor when replaced with the speed. Is done.
  • the emergency stop device 15 may be operated by operating the operating lever of the safety device 15 using the inertia force generated in the mass body 19.
  • the excessive acceleration level for operating the safety device 15 is set to a value close to the acceleration when the car 9 falls freely, and the acceleration setting value in the acceleration detection mechanism 20 is sufficiently higher than the excessive acceleration level. Set to a small value.
  • the safety monitoring unit 35 stops the car 9 by the hoisting machine brake 7, but the brake device is not limited to the hoisting machine brake 7, for example, a brake for gripping the suspension means 8. (Rope brake) or a brake (car brake) mounted on the car 9 may be used.
  • the 1: 1 roping elevator apparatus is shown in FIG. 1, the roping system is not limited to this, and the present invention can be applied to, for example, a 2: 1 roping elevator apparatus. Further, the present invention can be applied to a machine room-less elevator without the machine room 2 and various types of elevator apparatuses.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

L'invention porte sur un appareil d'ascenseur, dans lequel un dispositif de frein ralentit ou arrête une cabine. Une masse se déplace par rapport à un mouvement de la cabine. Un mécanisme de détection d'accélération détecte une accélération de la cabine qui dépasse une valeur prédéterminée par utilisation d'une force appliquée à la masse quand la cabine est accélérée. Pendant qu'au moins l'une d'une porte de cabine et d'une porte d'emplacement d'étage est ouverte, une partie de contrôle de sécurité ralentit ou arrête la cabine à l'aide du dispositif de frein si le mécanisme de détection d'accélération détecte que l'accélération de la cabine dépasse la valeur prédéterminée.
PCT/JP2011/059017 2011-04-11 2011-04-11 Appareil d'ascenseur WO2012140720A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/059017 WO2012140720A1 (fr) 2011-04-11 2011-04-11 Appareil d'ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/059017 WO2012140720A1 (fr) 2011-04-11 2011-04-11 Appareil d'ascenseur

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WO2012140720A1 true WO2012140720A1 (fr) 2012-10-18

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PCT/JP2011/059017 WO2012140720A1 (fr) 2011-04-11 2011-04-11 Appareil d'ascenseur

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150251877A1 (en) * 2012-12-17 2015-09-10 Mitsubishi Electric Corporation Elevator apparatus
WO2019130407A1 (fr) * 2017-12-26 2019-07-04 株式会社日立製作所 Ascenseur et procédé de protection contre le déplacement d'un ascenseur dont la porte est ouverte
CN112875457A (zh) * 2021-01-10 2021-06-01 温州市特种设备检测科学研究院(温州市特种设备应急处置中心) 一种升降机防坠器性能检测系统
JP2022112804A (ja) * 2021-01-22 2022-08-03 フジテック株式会社 ガバナロープの振動抑制装置及びエレベータ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06321452A (ja) * 1993-05-10 1994-11-22 Mitsubishi Denki Bill Techno Service Kk エレベータの制御装置
WO2009008183A1 (fr) * 2007-07-10 2009-01-15 Mitsubishi Electric Corporation Ascenseur
JP2010064860A (ja) * 2008-09-11 2010-03-25 Toshiba Elevator Co Ltd エレベータの安全装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06321452A (ja) * 1993-05-10 1994-11-22 Mitsubishi Denki Bill Techno Service Kk エレベータの制御装置
WO2009008183A1 (fr) * 2007-07-10 2009-01-15 Mitsubishi Electric Corporation Ascenseur
JP2010064860A (ja) * 2008-09-11 2010-03-25 Toshiba Elevator Co Ltd エレベータの安全装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150251877A1 (en) * 2012-12-17 2015-09-10 Mitsubishi Electric Corporation Elevator apparatus
WO2019130407A1 (fr) * 2017-12-26 2019-07-04 株式会社日立製作所 Ascenseur et procédé de protection contre le déplacement d'un ascenseur dont la porte est ouverte
CN112875457A (zh) * 2021-01-10 2021-06-01 温州市特种设备检测科学研究院(温州市特种设备应急处置中心) 一种升降机防坠器性能检测系统
JP2022112804A (ja) * 2021-01-22 2022-08-03 フジテック株式会社 ガバナロープの振動抑制装置及びエレベータ
JP7116898B2 (ja) 2021-01-22 2022-08-12 フジテック株式会社 ガバナロープの振動抑制装置及びエレベータ

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