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EP1801061A1 - Appareil d'ascenseur - Google Patents

Appareil d'ascenseur Download PDF

Info

Publication number
EP1801061A1
EP1801061A1 EP04822312A EP04822312A EP1801061A1 EP 1801061 A1 EP1801061 A1 EP 1801061A1 EP 04822312 A EP04822312 A EP 04822312A EP 04822312 A EP04822312 A EP 04822312A EP 1801061 A1 EP1801061 A1 EP 1801061A1
Authority
EP
European Patent Office
Prior art keywords
car
main rope
counterweight
drive sheave
hoistway
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.)
Granted
Application number
EP04822312A
Other languages
German (de)
English (en)
Other versions
EP1801061A4 (fr
EP1801061B1 (fr
Inventor
Eiji c/o Mitsubishi Denki Kabushiki Kaisha ANDO
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
Publication of EP1801061A1 publication Critical patent/EP1801061A1/fr
Publication of EP1801061A4 publication Critical patent/EP1801061A4/fr
Application granted granted Critical
Publication of EP1801061B1 publication Critical patent/EP1801061B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • 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
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
    • 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
    • B66B11/0065—Roping
    • B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave

Definitions

  • the present invention relates to a traction elevator apparatus in which a car and a counterweight are suspended by a main rope group that is wound around a drive sheave of a driving machine.
  • a hoisting machine having a thin motor as a driving source is disposed in an upper portion inside a hoistway.
  • the hoisting machine is disposed such that a rotating shaft of a drive sheave is vertical.
  • the hoisting machine is disposed in a corner portion of the upper portion of the hoistway (see Patent Literature 1, for example).
  • Patent Document 1 JP 2001-48450 A
  • the present invention aims to solve the above problems and an object of the present invention is to provide an elevator apparatus enabling a driving machine to be reduced further in thickness without requiring space in a hoistway or machine room to be expanded even if a diameter of a motor of the driving machine is increased.
  • an elevator apparatus including: a driving machine having a drive sheave, the driving machine being disposed in an upper portion of a hoistway such that a rotating shaft of the drive sheave is vertical; a main rope group that is wound around the drive sheave; a car that is suspended inside the hoistway by the main rope group and raised and lowered inside the hoistway by a driving force from the driving machine; first and second counterweights that are suspended inside the hoistway by the main rope group and raised and lowered inside the hoistway by the driving force from the driving machine; and a deflection pulley group that is disposed in an upper portion of the hoistway so as to direct the main rope group from the drive sheave toward the car, the first counterweight, and the second counterweight, wherein: the main rope group includes a first main rope that suspends the car and the first counterweight, and a second main rope that suspends the car and the second counterweight; the deflection pull
  • an elevator apparatus including: a driving machine having a drive sheave, the driving machine being disposed in an upper portion of a hoistway such that a rotating shaft of the drive sheave is vertical; a main rope group that is wound around the drive sheave; a car that is suspended inside the hoistway by the main rope group and raised and lowered inside the hoistway by a driving force from the driving machine; a counterweight that is suspended inside the hoistway by the main rope group and raised and lowered inside the hoistway by the driving force from the driving machine; and a deflection pulley group that is disposed in an upper portion of the hoistway so as to direct the main rope group from the drive sheave toward the car and the counterweight, wherein: the main rope group includes a first main rope and a secondmain rope; the deflection pulley group includes a first car deflection pulley that directs the first main rope from the drive sheave toward the car, a first counterweight def
  • Figure 1 is a front elevation showing an elevator apparatus according to Embodiment 1 of the present invention
  • Figure 2 is a cross section taken along line II - II in Figure 1.
  • a hoisting zone is shown considerably shortened for simplification, but the actual hoisting zone is much longer than a height dimension of a car.
  • a car 2, a first counterweight 3, and a second counterweight 4 are disposed inside a hoistway 1.
  • the car 2, the first counterweight 3, and the second counterweight 4 are raised and lowered inside the hoistway 1.
  • a car guide rail (not shown), a first counterweight guide rail (not shown), and a second counterweight guide rail (not shown) that guide the raising and lowering of the car 2, the first counterweight 3, and the second counterweight 4, respectively, are also installed inside the hoistway 1.
  • the car 2 has: a front surface 2a in which a car entrance is disposed; a back surface 2b opposite the front surface 2a; a first side surface 2c; and a second side surface 2d opposite the first side surface 2c.
  • the first counterweight 3 is disposed so as to face the first side surface 2c when positioned level with the car 2.
  • the second counterweight 4 is disposed so as to face the second side surface 2d when positioned level with the car 2.
  • the first counterweight 3 is disposed in a position that is closer to the back surface 2b than the front surface 2a when viewed from above.
  • the second counterweight 4 is disposed in a position that is closer to the front surface 2a than the back surface 2b when viewed from above.
  • the first and second counterweights 3 and 4 are disposed so as to be offset in a depth direction of the car 2 when viewed from above.
  • a machine room 5 is disposed in an upper portion of the hoistway 1.
  • a driving machine (a hoisting machine) 6 that generates a driving force for raising and lowering the car 2 and the counterweights 3 and 4 is installed inside the machine room 5.
  • the driving machine 6 has: a driving machine main body 7 that includes a motor and a brake; and a drive sheave 8 that is rotated by the driving machine main body 7.
  • a thin hoisting machine having a shorter axial dimension than an outside diameter dimension that is perpendicular to an axial direction is used for the driving machine 6.
  • a permanent-magnet synchronous motor is used for the motor of the driving machine 6.
  • the drive sheave 8 is rotated directly by the motor without a reduction gear.
  • the driving machine 6 is disposed such that a rotating shaft of the drive sheave 8 is vertical (also including generally vertical).
  • the driving machine 6 is also disposed such that the drive sheave 8 is positioned below the driving machine main body 7.
  • the driving machine 6 is disposed so as to overlap generally centrally with the car 2 when viewed from above. In other words, the driving machine 6 is disposed generally centrally inside the machine room 5.
  • a main rope group 10 that suspends the car 2 and the counterweights 3 and 4 is wound around the drive sheave 8.
  • a plurality of first main ropes 11 (only one is shown in the figures) that suspend the car 2 and the first counterweight 3, and a plurality of second main ropes 12 (only one is shown in the figures) that suspend the car 2 and the second counterweight 4 are included in the main rope group 10.
  • the number of first main ropes 11 is equal to the number of second main ropes 12.
  • the total number of main ropes contained in the main rope group 10 is determined by constraints such as main rope safety factors prescribed by law, etc.
  • the number of first and second main ropes 11 and 12 is half the total number of main ropes, respectively.
  • a wind-around range R1 of the first main ropes 11 and a wind-around range R2 of the second main ropes 12 on the drive sheave 8 are centrosymmetric to each other relative to the rotating shaft of the drive sheave 8.
  • the wind-around range R1 and the wind-around range R2 do not overlap in a circumferential direction of the drive sheave 8.
  • small regions are present at two circumferential positions on the drive sheave 8 where neither the first nor second main ropes 11 and 12 are wound around. Consequently, wind-around angles of the first and second main ropes 11 and 12 on the drive sheave 8 are less than 180 degrees, respectively.
  • a deflection pulley group 14 that directs the main rope group 10 from the drive sheave 8 toward the car 2 and the counterweight 3 and 4 is disposed in the machine room 5.
  • a second car deflection pulley 17 that directs the second main ropes 12 from the drive sheave 8 toward the car 2
  • a second counterweight deflection pulley 18 that directs the second main ropes 12 from the drive sheave 8 toward the second counterweight 4 are included in the deflection pulley group 14.
  • the deflection pulleys 15 through 18 are disposed such that rotating shafts thereof are horizontal.
  • the deflection pulleys 15 through 18 are also disposed so as to overlap with the car 2 when viewed from above.
  • First and second hanging positions 13a and 13b of the car 2 by the first and second main ropes 11 and 12 are separated from each other in a width direction and a depth direction of the car 2 when viewed from above.
  • the hanging positions 13a and 13b are also centrosymmetric to each other relative to a center of gravity of the car 2 when viewed from above.
  • the first hanging position 13a is an action centre of forces from all of the first main ropes 11.
  • the second hanging position 13b is similar.
  • an approach angle of the main ropes 11 and 12 onto the drive sheave 8 is maximized in the main rope positioned furthest outside on the deflection pulleys 15 through 18.
  • the main rope group 10 is divided into first and second main ropes 11 and 12 in this example, the number of main ropes that are wound around each of the deflection pulleys 15 through 18 is halved (or approximately halved). Consequently, the approach angle onto the drive sheave 8 of the main rope positioned furthest outside on the deflection pulleys 15 through 18 can be reduced. In other words, the distance between the drive sheave 8 and the deflection pulleys 15 through 18 can be reduced.
  • the driving machine 6 can be disposed in the vicinity of the center of the machine room 5, and interference with wall portions of the machine room 5 is avoided even if the diameter of the motor of the driving machine 6 is increased, making it unnecessary to expand the space of the machine room 5. In other words, additional reductions in the thickness of the driving machine 6 can be achieved.
  • Figure 3 is a front elevation showing an elevator apparatus according to Embodiment 2 of the present invention and Figure 4 is a plan showing the elevator apparatus in Figure 3.
  • a driving machine 6 and a deflection pulley group 14 are disposed in an upper portion inside a hoistway 1.
  • the driving machine 6 and deflection pulleys 15 through 18 are disposed between a car 2 and a ceiling 1a of the hoistway 1 when the car 2 is stopped at an uppermost floor, in other words, the elevator apparatus in this example is a machine-roomless elevator.
  • the driving machine 6 is disposed such that a drive sheave 8 is positioned above a driving machine main body 7.
  • the driving machine 6 is also disposed at a height equal to that of the deflection pulleys 15 through 18.
  • the driving machine 6 is disposed in a vicinity of a center of the hoistway 1 when viewed from above.
  • First and second rope connecting portions 2e and 2f projecting outward in a width direction of the car 2 from first and second side surfaces 2c and 2d are disposed on the car 2.
  • First and second main ropes 11 and 12 are connected to the first and second rope connecting portions 2e and 2f.
  • the rest of the configuration is similar to that of Embodiment 1.
  • the driving machine 6 can be disposed in the vicinity of the center of the upper portion inside the hoistway 1. Consequently, it is not necessary to expand the space of the hoistway 1 even if the diameter of the motor of the driving machine 6 is increased.
  • the driving machine 6 can also be reduced further in thickness. Thus, increases in vertical dimensions and horizontal dimensions of the hoistway 1 can be prevented.
  • the driving machine main body 7 is disposed under the drive sheave 8
  • maintenance inspection work on the driving machine main body 7 can be performed easily from on top of the car 2.
  • the rope connecting portions 2e and 2f are disposed on the car 2
  • the distance between the deflection pulleys 15 and 17 and the drive sheave 8 can be increased, enabling the approach angle of the main ropes 11 and 12 onto the drive sheave 8 to be reduced.
  • Figure 5 is a plan showing an elevator apparatus according to Embodiment 3 of the present invention.
  • a second counterweight 4 is disposed in a position that is closer to a back surface 2b than a front surface 2a when viewed from above.
  • the first and second counterweights 3 and 4 are disposed at identical positions in a depth direction of the car 2 when viewed from above.
  • a wind-around range R1 of first main ropes 11 and a wind-around range R2 of second main ropes 12 on a drive sheave 8 are not centrosymmetric to each other relative to a rotating shaft of the drive sheave 8.
  • the wind-around range R1 and the wind-around range R2 overlap with each other only partially in a circumferential direction on the drive sheave 8 (overlap range R3) .
  • the overlap range R3 is less than one quarter (1/4) of the wind-around range R1 or the wind-around range R2.
  • the rest of the configuration is similar to that of Embodiments 1 or 2.
  • FIG. 6 is a plan showing an elevator apparatus according to Embodiment 4 of the present invention.
  • a car 2 and a counterweight 21 are suspended by a main rope group 10 inside a hoistway 1.
  • a back surface facing portion 21a that faces a back surface 2b when positioned level with the car 2 and a side surface facing portion 21b that faces a second side surface 2d when positioned level with the car 2 are disposed integrally on the counterweight 21.
  • the side surface facing portion 21b is at a right angle relative to the back surface facing portion 21a.
  • a horizontal shape of the counterweight 21 is an L shape.
  • Hanging positions 22a and 22b of the counterweight 21 by first and second main ropes 11 and 12 are separated from each other when viewed from above. Specifically, the hanging position 22a of the counterweight 21 by the first main ropes 11 is disposed on the back surface facing portion 21a, and the hanging position of the counterweight 21 by the second main ropes 12 is disposed on the side surface facing portion 21b.
  • the overlap range R3 is less than one half (1/2) of the wind-around range R1 or the wind-around range R2.
  • the rest of the configuration is similar to that of Embodiments 1 or 2.
  • wind-around range R1 and the wind-around range R2 overlap with each other only partially in the circumferential direction of the drive sheave 8, forces from the main ropes 11 and 12 acting radially on the drive sheave 8 partially cancel each other out.
  • strength in the rotating shaft, the bearings, and the frame body supporting the bearings, etc., of the drive sheave 8 can be reduced, enabling reductions in overall size and weight of the driving machine 6.
  • car suspension sheaves may also be mounted to a car, a counterweight suspension sheave mounted to a counterweight, main ropes wound around the car suspension sheaves and the counterweight suspension sheave, and end portions of the main ropes connected to rope end connecting portions that are disposed in an upper portion of a hoistway.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
EP04822312.7A 2004-10-13 2004-10-13 Appareil d'ascenseur Expired - Lifetime EP1801061B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/015051 WO2006040813A1 (fr) 2004-10-13 2004-10-13 Appareil d'ascenseur

Publications (3)

Publication Number Publication Date
EP1801061A1 true EP1801061A1 (fr) 2007-06-27
EP1801061A4 EP1801061A4 (fr) 2012-02-08
EP1801061B1 EP1801061B1 (fr) 2013-07-03

Family

ID=36148115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04822312.7A Expired - Lifetime EP1801061B1 (fr) 2004-10-13 2004-10-13 Appareil d'ascenseur

Country Status (4)

Country Link
EP (1) EP1801061B1 (fr)
JP (1) JP4762907B2 (fr)
CN (1) CN100532234C (fr)
WO (1) WO2006040813A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1862420A1 (fr) * 2005-03-04 2007-12-05 Mitsubishi Denki Kabushiki Kaisha Machinerie d'ascenseur
EP1905719A1 (fr) * 2005-07-15 2008-04-02 Mitsubishi Denki Kabushiki Kaisha Appareil d ascenseur
EP2022744A4 (fr) * 2006-06-01 2013-01-30 Mitsubishi Electric Corp Dispositif d'ascenseur
EP2019073A4 (fr) * 2006-05-19 2013-01-30 Mitsubishi Electric Corp Dispositif d'ascenseur
WO2013038050A1 (fr) * 2011-09-15 2013-03-21 Kone Corporation Dispositif de suspension et agencement sabot de guidage d'ascenseur
US9643817B2 (en) 2011-05-18 2017-05-09 Kone Corporation Elevator arrangement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109969912A (zh) * 2017-12-27 2019-07-05 日立电梯（中国）有限公司 一种双对重吊挂的电梯
CN110077930A (zh) * 2019-04-19 2019-08-02 董代军 一种用于老旧住宅楼外的双曳引机安全电梯

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2161183A1 (es) * 1998-12-22 2001-11-16 Otis Elevator Co "maquina plana de ascensor que tiene rotacion orientada verticalmente.".
WO2003074409A1 (fr) * 2002-03-01 2003-09-12 Mitsubishi Denki Kabushiki Kaisha Ascenseur
EP2390219A1 (fr) * 2003-12-09 2011-11-30 Mitsubishi Denki Kabushiki Kaisha Appareil d'ascenseur

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431282Y2 (fr) * 1973-05-24 1979-10-01
JPS61291382A (ja) * 1985-06-17 1986-12-22 三菱電機株式会社 エレベ−タ
JPH0570058A (ja) * 1991-09-17 1993-03-23 Hitachi Building Syst Eng & Service Co Ltd エレベータ装置
JPH11310372A (ja) * 1998-04-28 1999-11-09 Toshiba Elevator Co Ltd エレベータ装置
JP4404999B2 (ja) 1999-08-16 2010-01-27 三菱電機株式会社 エレベータ装置
JP2002068641A (ja) * 2000-08-24 2002-03-08 Mitsubishi Electric Corp エレベーター装置
EP1535875B1 (fr) * 2002-09-03 2013-02-27 Mitsubishi Denki Kabushiki Kaisha Dispositif d'ascenseur

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2161183A1 (es) * 1998-12-22 2001-11-16 Otis Elevator Co "maquina plana de ascensor que tiene rotacion orientada verticalmente.".
WO2003074409A1 (fr) * 2002-03-01 2003-09-12 Mitsubishi Denki Kabushiki Kaisha Ascenseur
EP2390219A1 (fr) * 2003-12-09 2011-11-30 Mitsubishi Denki Kabushiki Kaisha Appareil d'ascenseur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006040813A1 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1862420A1 (fr) * 2005-03-04 2007-12-05 Mitsubishi Denki Kabushiki Kaisha Machinerie d'ascenseur
EP1862420A4 (fr) * 2005-03-04 2012-11-07 Mitsubishi Electric Corp Machinerie d'ascenseur
EP1905719A1 (fr) * 2005-07-15 2008-04-02 Mitsubishi Denki Kabushiki Kaisha Appareil d ascenseur
EP1905719A4 (fr) * 2005-07-15 2013-02-27 Mitsubishi Electric Corp Appareil d ascenseur
EP2019073A4 (fr) * 2006-05-19 2013-01-30 Mitsubishi Electric Corp Dispositif d'ascenseur
EP2022744A4 (fr) * 2006-06-01 2013-01-30 Mitsubishi Electric Corp Dispositif d'ascenseur
US9643817B2 (en) 2011-05-18 2017-05-09 Kone Corporation Elevator arrangement
WO2013038050A1 (fr) * 2011-09-15 2013-03-21 Kone Corporation Dispositif de suspension et agencement sabot de guidage d'ascenseur
CN103796942A (zh) * 2011-09-15 2014-05-14 通力股份公司 用于电梯的悬挂配置和导引靴配置
CN103796942B (zh) * 2011-09-15 2016-08-17 通力股份公司 用于电梯的悬挂配置和导引靴配置
EA025387B1 (ru) * 2011-09-15 2016-12-30 Коне Корпорейшн Система подвески с направляющими башмаками для лифта
US9546076B2 (en) 2011-09-15 2017-01-17 Kone Corporation Suspension arrangement and guide shoe arrangement for an elevator

Also Published As

Publication number Publication date
JP4762907B2 (ja) 2011-08-31
CN1890169A (zh) 2007-01-03
EP1801061A4 (fr) 2012-02-08
WO2006040813A1 (fr) 2006-04-20
CN100532234C (zh) 2009-08-26
EP1801061B1 (fr) 2013-07-03
JPWO2006040813A1 (ja) 2008-05-15

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