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WO2018179182A1 - Dispositif d'ascenseur - Google Patents

Dispositif d'ascenseur Download PDF

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Publication number
WO2018179182A1
WO2018179182A1 PCT/JP2017/013066 JP2017013066W WO2018179182A1 WO 2018179182 A1 WO2018179182 A1 WO 2018179182A1 JP 2017013066 W JP2017013066 W JP 2017013066W WO 2018179182 A1 WO2018179182 A1 WO 2018179182A1
Authority
WO
WIPO (PCT)
Prior art keywords
lifting body
suspension
emergency stop
counterweight
car
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.)
Ceased
Application number
PCT/JP2017/013066
Other languages
English (en)
Japanese (ja)
Inventor
池田　史郎
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
Priority to JP2019508461A priority Critical patent/JP6678814B2/ja
Priority to PCT/JP2017/013066 priority patent/WO2018179182A1/fr
Priority to CN201780088824.0A priority patent/CN110461750B/zh
Publication of WO2018179182A1 publication Critical patent/WO2018179182A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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

Definitions

  • This invention relates to an elevator apparatus in which an emergency stop device is mounted on a car.
  • the emergency operation of the elevator system is divided into two stages.
  • the first stage when the excessive speed of the car exceeding the rated speed is mechanically detected by the governor, the safety switch is operated, the energization to the hoisting machine is cut off, and the hoisting machine brake is operated. Operate. Further, even when the hoisting machine brake is activated, when the speed of the car is further increased, the emergency stop device mounted on the car is activated as a second stage operation.
  • the emergency stop device uses a wedge to grip the car guide rail to stop the car emergency. In many emergency stop devices, raising the car lifts the wedge away from the car guide rail and releases the gripping force.
  • a plurality of hydraulic cylinders are fixed to the suspension plate.
  • Each rope is coupled to a piston in a corresponding hydraulic cylinder via a socket member, a connecting member, and a piston rod.
  • the hydraulic cylinders are connected by a pipe (for example, see Patent Document 2).
  • JP 2006-131339 A Japanese Patent Laid-Open No. 5-39181
  • the emergency stop device is activated when the car descends again and reaches the excessive speed again. If such an operation is repeated, it will be difficult to confirm whether or not the emergency stop device is normal.
  • the emergency stop device on the counterweight side also operates during free fall after the counterweight jumps up, and the emergency stop device is operated on both the cage and the counterweight. It is also possible that it will work.
  • the present invention has been made to solve the above-described problems, and prevents the gripping force of the emergency stop device in the activated state from being released due to free fall after the second lifting body jumps up. It is an object to obtain an elevator apparatus that can be used.
  • An elevator apparatus includes a hoist having a drive sheave, a suspension wound around the drive sheave, a first lifting body suspended by the suspension on one side of the drive sheave, and a drive sheave. It is mounted on the second lifting body and the first lifting body that are suspended by the suspension body on the other side, and the first lifting body is moved when the descending speed of the first lifting body reaches an excessive speed.
  • An emergency stop device for emergency stop, and an emergency stop device provided between the suspension body and the second lifting body, and when the first lifting body is brought to an emergency stop by operating the emergency stop device, the second lifting body It has an energy consuming device that consumes the energy of free fall after jumping up.
  • the energy consuming apparatus that consumes the energy of free fall after the second lifting body jumps is provided between the suspension body and the second lifting body, It is possible to prevent the gripping force of the activated emergency stop device from being released due to the free fall after the body jumps up.
  • FIG. 1 is a schematic configuration diagram showing an elevator apparatus according to Embodiment 1 of the present invention. It is a side view which shows the energy consuming apparatus of FIG.
  • FIG. 3 is a side view showing a state where the first and second adsorption members of FIG. 2 are separated from each other. It is a side view which shows the counterweight and energy consuming apparatus of FIG.
  • FIG. 5 is a side view showing a state where the first and second adsorption members of FIG. 4 are separated from each other.
  • FIG. 1 is a schematic configuration 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 car 3 that is a first lifting body and a counterweight 4 that is a second lifting body are provided in the hoistway 1.
  • a pair (only one is shown in FIG. 1) for guiding the raising and lowering of the car 3 and a pair (only one is shown in FIG. 1) for guiding the raising and lowering of the counterweight 4.
  • the counterweight guide rail 6 is installed.
  • the car 3 has a car frame 7 and a car room 8 supported by the car frame 7.
  • the car frame 7 has a pair of car frame columns 7a (only one is shown in FIG. 1) and a car upper beam 7b.
  • the car frame columns 7 a are arranged on both sides in the width direction of the car room 8.
  • the car upper beam 7b is horizontally disposed between the upper ends of the car frame pillars 7a.
  • An emergency stop device 9 is mounted at the bottom of the car 3.
  • the emergency stop device 9 makes an emergency stop of the car 3 by gripping the pair of car guide rails 5.
  • the emergency stop device 9 has a wedge guide and a wedge member (both not shown). The wedge member is pushed between the wedge guide and the car guide rail 5 when the safety device 9 is operated.
  • the car 3 is raised in a state where the safety device 9 is activated, the wedge member is separated from the car guide rail 5 and the gripping force of the safety device 9 is released.
  • the machine room 2 is provided with a hoisting machine 10 for raising and lowering the car 3 and the counterweight 4.
  • the hoisting machine 10 includes a driving sheave 11, a hoisting machine motor (not shown) that rotates the driving sheave 11, and a hoisting machine brake 12 that brakes the rotation of the driving sheave 11.
  • An electromagnetic brake is used as the hoisting machine brake 12.
  • a suspension 13 is wound around the drive sheave 11.
  • the first end of the suspension 13 is connected to the car upper beam 7b.
  • the second end of the suspension 13 is connected to the upper portion of the counterweight 4 via the energy consuming device 21.
  • the car 3 is suspended by a suspension 13 on one side of the drive sheave 11.
  • the counterweight 4 is suspended by a suspension 13 on the other side of the drive sheave 11.
  • the car 3 and the counterweight 4 are suspended in the hoistway 1 by a suspension body 13 by a 1: 1 roping method. Further, the car 3 and the counterweight 4 move up and down in the hoistway 1 by rotating the drive sheave 11.
  • control panel 14 controls the operation of the car 3 by controlling the hoisting machine 10.
  • the governor 15 monitors whether the car 3 is traveling at an excessive speed.
  • the governor 15 includes a governor sheave 16, an overspeed detection switch 17, and a rope catch 18.
  • a governor rope 19 is wound around the governor sheave 16.
  • the governor rope 19 is laid annularly in the hoistway 1 and connected to the emergency stop device 9. Further, the governor rope 19 is wound around a tension wheel 20 disposed at the lower part of the hoistway 1. When the car 3 moves up and down, the governor rope 19 circulates and the governor sheave 16 rotates at a rotational speed corresponding to the traveling speed of the car 3.
  • the governor 15 mechanically detects that the traveling speed of the car 3 has reached an excessive speed.
  • the governor 15 is set with a first overspeed higher than the rated speed and a second overspeed higher than the first overspeed as the overspeed to be detected.
  • the overspeed detection switch 17 When the traveling speed of the car 3 reaches the first overspeed, the overspeed detection switch 17 is operated. When the overspeed detection switch 17 is operated, the power supply to the hoisting machine 10 is cut off, the hoisting machine brake 12 is activated, and the car 3 is suddenly stopped.
  • the rope catcher 18 grips the governor rope 19 and the circulation of the governor rope 19 is stopped.
  • the emergency stop device 9 is operated by the relative downward movement of the car 3 with respect to the governor rope 19. As a result, the emergency stop device 9 is actuated and the car 3 is brought to an emergency stop.
  • FIG. 2 is a side view showing the energy consuming apparatus 21 of FIG.
  • the energy consuming apparatus 21 includes a first suction member 22, a second suction member 23, a winding mechanism 24, a plurality of (only one is shown in FIG. 2) flexible coupling bodies 25, and a plurality (FIG. 2). (Only one is shown).
  • the first and second adsorbing members 22 and 23 are adsorbed to each other by a magnetic force that is not separated during acceleration / deceleration during normal acceleration traveling, constant speed traveling, and decelerating traveling of the car 3.
  • a magnet (not shown) is provided on at least one of the first and second attracting members 22 and 23. You may provide a magnet in both the 1st and 2nd adsorption
  • the winding mechanism 24 and the pulley 26 are provided on the first suction member 22.
  • the base end portion of each connecting body 25 is wound around the winding mechanism 24. Further, the front end portion, that is, the lower end portion of each coupling body 25 is pulled out from the winding mechanism 24 and connected to the second suction member 23.
  • each connecting body 25 for example, the same rope or belt as the suspension body 13 is used.
  • Each connecting body 25 is wound around a pulley 26.
  • Each connecting body 25 is guided by a pulley 26 and connected to the center of the second suction member 23 in the thickness direction (left and right direction in FIG. 2).
  • the first and second suction members 22 and 23 are separated from each other as shown in FIG. 3 when a force larger than the suction force between them is applied. At this time, the connecting body 25 is pulled out from the winding mechanism 24 and is stretched between the first suction member 22 and the second suction member 23. That is, the first and second suction members 22 and 23 are connected to each other via the connecting body 25.
  • FIG. 4 is a side view showing the counterweight 4 and the energy consuming apparatus 21 in FIG. 1
  • FIG. 5 is a side view showing a state in which the first and second adsorbing members 22 and 23 in FIG. 4 are separated from each other.
  • a second end portion of the suspension body 13 is connected to the first adsorption member 22.
  • the counterweight 4 has a counterweight frame 4a.
  • the counterweight frame 4a has a counterweight upper frame 4b.
  • the counterweight upper frame 4 b is horizontally disposed on the upper portion of the counterweight 4.
  • the second adsorbing member 23 has a counterweight upper frame through a plurality of shackle rods 27 (only one is shown in FIGS. 4 and 5) and a plurality of shackle springs 28 (only one is shown in FIGS. 4 and 5). 4b.
  • the second suction member 23 is fixed to the upper end portion of the shackle rod 27.
  • the car 3 be lowered at an excessive speed in a state where the hoisting machine brake 12 is not operated, and the emergency stop device 9 can actually be operated to stop the car 3? There is a way to check.
  • the energy consuming apparatus 21 consumes the energy of free fall after the counterweight 4 jumps up to the force that separates the second adsorption member 23 from the first adsorption member 22.
  • the magnetic attraction force between the first attracting member 22 and the second attracting member 23 takes into account the mass of the counterweight 4 and the mass of the suspension 13, and so on. It sets so that the 1st adsorption
  • suction member 23 may be pulled apart with energy.
  • first suction member 22 and the second suction member 23 are connected by the connecting body 25, even if the second suction member 23 is separated from the first suction member 22, the counterweight 4. Will not fall.
  • the coupling body 25 is wound around the winding mechanism 24 when the second adsorption member 23 is attracted to the first adsorption member 22, the coupling body 25 is stored in a compact manner, and the first The adsorbing member 22 and the second adsorbing member 23 can be firmly adsorbed.
  • the winding mechanism 24 with a component that generates a force for winding the connection body 25, for example, a spiral spring, the second adsorption member 23 is separated from the first adsorption member 22 and the connection body 25 is taken up.
  • a resistance force can be generated, and the falling speed of the counterweight 4 can be reduced.
  • the falling speed of the counterweight 4 can be reduced by the frictional force between the winding mechanism 24 and the coupling body 25.
  • the length of the connecting body 25 is not less than the amount of jumping of the counterweight 4 and the counterweight 4 is stopped at 1 G or less due to the above-described deceleration effect.
  • the pulley 26 may be omitted if the second suction member 23 may be slightly decentered and hung when the second suction member 23 is separated from the first suction member 22.
  • the number and the material of the connecting body 25 are not necessarily the same as those of the suspension body 13.
  • the winding mechanism 24 may be provided on the second suction member 23 or on both the first and second suction members 22 and 23.
  • the winding mechanism 24 may be omitted if the connecting body 25 does not interfere with the second adsorbing member 23 being adsorbed to the first adsorbing member 22.
  • suction member 23 into a some division body, respectively.
  • FIG. 6 is a side view showing a main part of an elevator apparatus according to Embodiment 2 of the present invention.
  • the energy consuming apparatus 31 according to the second embodiment includes a first friction fastening member 32, a second friction fastening member 33, and a fastening bolt 34.
  • the first frictional fastening member 32 is connected to the second end of the suspension body 13.
  • the second frictional fastening member 33 is connected to the counterweight upper frame 4 b of the counterweight 4 via the shackle rod 27 and the shackle spring 28.
  • the first friction fastening member 32 and the second friction fastening member 33 are fastened by fastening bolts 34. That is, the first friction fastening member 32 and the second friction fastening member 33 are fastened with a frictional force corresponding to the fastening force of the fastening bolt 34.
  • the fastening bolt 34 penetrates the first friction fastening member 32 and is screwed into the screw hole of the second friction fastening member 33.
  • the first friction fastening member 32 is provided with a long hole 32a through which the fastening bolt 34 is passed. Both ends of the second frictional fastening member 33 in the width direction (left-right direction in FIG. 6) are bent so as to embrace the first frictional fastening member 32.
  • FIG. 7 is a side view showing a state in which the second frictional fastening member 33 of FIG. 6 is shifted downward with respect to the first frictional fastening member 32.
  • the energy consuming device 31 consumes the energy of free fall after the counterweight 4 jumps up to the force that shifts the second frictional fastening member 33 against the frictional force against the first frictional fastening member 32. To do.
  • the frictional force between the first frictional engagement member 32 and the second frictional engagement member 33 does not deviate during acceleration / deceleration during normal acceleration traveling, constant speed traveling, and decelerating traveling of the car 3. Set to such a size.
  • the frictional force between the first frictional fastening member 32 and the second frictional fastening member 33 is the energy of free fall after the counterweight 4 jumps up in consideration of the inertial mass of the counterweight 4 and the like.
  • the size is set such that the second frictional fastening member 33 is displaced with respect to the first frictional fastening member 32.
  • the energy of free fall after the counterweight 4 jumps up is changed to a force that causes a shift between the first friction fastening member 32 and the second friction fastening member 33 that are fastened to each other by the friction force. Since it consumes, the energy of the free fall of the counterweight 4 can be consumed with a simple configuration.
  • FIG. 6 may be connected to the shackle rod 27 as the second friction fastening member, and the friction fastening member 33 in FIG. 6 may be connected to the suspension body 13 as the first friction fastening member.
  • the fastening bolt is normally positioned at the lower end of the long hole, and when the second friction fastening member is displaced with respect to the first friction fastening member, the fastening bolt moves relatively upward along the long hole. Moving.
  • the layout of the elevator apparatus to which the present invention is applied is not limited to FIG.
  • the present invention can be applied to a machine room-less elevator or a 2: 1 roping elevator.
  • an energy consuming device may be disposed between a counterweight suspension vehicle and a counterweight.
  • the car is the first lifting body and the counterweight is the second lifting body, but the counterweight is the first lifting body and the emergency weight is mounted on the counterweight.
  • You may arrange
  • an emergency stop device may be mounted on both the car and the counterweight, and energy consuming devices may be arranged on both sides of the car side and the counterweight side.

Landscapes

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

Abstract

L'invention concerne un dispositif d'ascenseur, dans lequel un premier corps de levage est suspendu par un corps de suspension sur un côté d'une poulie de traction. Dans la présente invention, un second corps de levage est suspendu par un corps de suspension sur l'autre côté de la poulie de traction. Un dispositif d'arrêt d'urgence, selon la présente invention, est monté sur le premier corps de levage, et effectue un arrêt d'urgence du premier corps de levage lorsque la vitesse de descente du premier corps de levage atteint une vitesse excessive. Un dispositif de consommation d'énergie est disposé entre le corps de suspension et le second corps de levage. Le dispositif de consommation d'énergie consomme l'énergie de chute libre après le bond du second corps de levage lorsque le dispositif d'arrêt d'urgence fonctionne et l'arrêt d'urgence du premier corps de levage est effectué.
PCT/JP2017/013066 2017-03-29 2017-03-29 Dispositif d'ascenseur Ceased WO2018179182A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2019508461A JP6678814B2 (ja) 2017-03-29 2017-03-29 エレベータ装置
PCT/JP2017/013066 WO2018179182A1 (fr) 2017-03-29 2017-03-29 Dispositif d'ascenseur
CN201780088824.0A CN110461750B (zh) 2017-03-29 2017-03-29 电梯装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/013066 WO2018179182A1 (fr) 2017-03-29 2017-03-29 Dispositif d'ascenseur

Publications (1)

Publication Number Publication Date
WO2018179182A1 true WO2018179182A1 (fr) 2018-10-04

Family

ID=63674376

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/013066 Ceased WO2018179182A1 (fr) 2017-03-29 2017-03-29 Dispositif d'ascenseur

Country Status (3)

Country Link
JP (1) JP6678814B2 (fr)
CN (1) CN110461750B (fr)
WO (1) WO2018179182A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112019007977T5 (de) * 2019-12-18 2022-09-29 Mitsubishi Electric Corporation Aufzugvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001187679A (ja) * 1999-12-28 2001-07-10 Mitsubishi Electric Corp エレベータの走行案内装置
JP2004338939A (ja) * 2003-02-04 2004-12-02 Inventio Ag エレベータ用の安全装置
JP2006526555A (ja) * 2003-05-30 2006-11-24 オーチス　エレベータ　カンパニー エレベーターシステムのタイダウン式補償
JP2014177333A (ja) * 2013-03-15 2014-09-25 Fujitec Co Ltd エレベータ装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4351211B2 (ja) * 2003-08-06 2009-10-28 オーチス エレベータ カンパニー 緩衝懸架装置
JPWO2006022015A1 (ja) * 2004-08-27 2008-05-08 三菱電機株式会社 エレベータ装置
KR101920546B1 (ko) * 2014-04-09 2018-11-20 미쓰비시덴키 가부시키가이샤 엘리베이터 장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001187679A (ja) * 1999-12-28 2001-07-10 Mitsubishi Electric Corp エレベータの走行案内装置
JP2004338939A (ja) * 2003-02-04 2004-12-02 Inventio Ag エレベータ用の安全装置
JP2006526555A (ja) * 2003-05-30 2006-11-24 オーチス　エレベータ　カンパニー エレベーターシステムのタイダウン式補償
JP2014177333A (ja) * 2013-03-15 2014-09-25 Fujitec Co Ltd エレベータ装置

Also Published As

Publication number Publication date
JPWO2018179182A1 (ja) 2019-11-07
CN110461750A (zh) 2019-11-15
CN110461750B (zh) 2021-02-26
JP6678814B2 (ja) 2020-04-08

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