EP1500621A1 - Mechanismus und verfahren zum heraufziehen/absenken eines aufzugs - Google Patents

Mechanismus und verfahren zum heraufziehen/absenken eines aufzugs Download PDF

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Publication number
EP1500621A1
EP1500621A1 EP02724661A EP02724661A EP1500621A1 EP 1500621 A1 EP1500621 A1 EP 1500621A1 EP 02724661 A EP02724661 A EP 02724661A EP 02724661 A EP02724661 A EP 02724661A EP 1500621 A1 EP1500621 A1 EP 1500621A1
Authority
EP
European Patent Office
Prior art keywords
car
elevator
balance weight
pulley
hoisting
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.)
Withdrawn
Application number
EP02724661A
Other languages
English (en)
French (fr)
Other versions
EP1500621A4 (de
Inventor
Masami Mitsubishi Denki K.K. YOSHIKAWA
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 EP1500621A1 publication Critical patent/EP1500621A1/de
Publication of EP1500621A4 publication Critical patent/EP1500621A4/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • 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
    • 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
    • B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
    • B66B11/0484—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with a clutch or a coupling system between several motors, e.g. switching different speeds, progressive starting, torque limitation, flywheel

Definitions

  • the present invention relates to an elevating mechanism and an elevating method for an elevator system. More particularly, it relates to an elevating mechanism and an elevating method which are used when an elevator car is moved up and down.
  • Figure 5 is a schematic view of a conventional elevating mechanism 210 for an elevator system 200.
  • the elevator system 200 is provided with the elevating mechanism 210.
  • Each end of a wire rope 30 of the elevating mechanism 210 is fixed to a rope fixing portion 54 provided on the backside of a machine house floor 4 above an elevator shaft 2.
  • the wire rope 30 fixed to the fixing portion 54 is wound around a balance weight pulley 16 provided on a balance weight 10 so that the balance weight 10 is hung.
  • the wire rope 30 wound around the balance weight pulley 16 is next wound around a hoisting machine 50 provided in a machine house 6, and hangs down again to a lower part below the machine house floor 4.
  • the hanging wire rope 30 is wound around pulleys 14 provided at the lower part of a car 8 so that the car 8 is hung.
  • the end of the wire rope 30 wound around the pulleys 14 of the car 8 is fixed to the fixing portion 54.
  • the elevating mechanism 210 it is sometimes necessary to make safety check, periodic check, or the like in the state in which the hoisting machine 50 or the control panel 52 is stopped and the rotation of the hoistingmachine 50 is temporarily stopped. In such a case, the car 8 cannot be moved up and down, so that the elevator itself must be stopped during the work. Also, in the case where the rotation of the hoisting machine must inevitably be stopped due to failure etc., similarly, the elevator itself is stopped. If the elevator itself is stopped by check, failure, or the like in this manner, inconvenience is given to the elevator users.
  • the speed and capacity of the elevator is set depending on the environment of a building in which the elevator system is provided and other factors. and the rotation of the hoisting machine 50 is controlled so as to have a setting speed by the control panel 52 in accordance with the set speed and capacity of the elevator.
  • the transportation capability of the elevator is usually set in accordance with the time when waiting user gather, i.e., the time when the load is highest in the up/down motion of the car 8, so that the transportation capability is sometimes excessive in some time zone, and hence energy is consumed wastefully.
  • the present invention proposes an improved elevating mechanism for an elevator system, in which the elevator can be operated even when the rotation of a hoisting machine is stopped by an inspection such as safety check or a failure. Also, the present invention proposes an improved elevating mechanism for an elevator system, in which the transportation capability can be adjusted in accordance with the load of elevator system in up/down motion.
  • an elevating method for an elevator system characterized in that in an elevating mechanism for an elevator system having two sets of hoisting machines provided in an elevator shaft of the elevator system, and a loop-shaped rope wound around the hoisting machines to move an elevator car up and down.
  • the rope is wound around a pulley for the car so that the car is hung, and at the other place, the rope is wound around a pulley for the balance weight so that the balance weight is hung, and the two sets of hoisting machines are rotated or stopped selectively, whereby the car and the balance weight are moved up and down.
  • Figure 1 is a perspective view of an elevator system 100 in accordance with an embodiment of the present invention.
  • Figure 2 is a schematic view of hoisting pulleys 22 and 24 in an elevating mechanism 110 for the elevator system 100.
  • the elevator system 100 is provided with an elevator shaft 2.
  • the upper part of the elevator shaft 2 is partitioned by a machine house floor 4, and a machine house 6 is provided.
  • a car 8 and a balance weight 10 are hung.
  • the car 8 is provided with a car frame 12, and a car pulley 14 is provided above the car frame 12. Also, a balance weight pulley 16 is provided above a balance weight 10.
  • the machine house floor 4 is formed with two wire rope through holes 18 and 20.
  • the machine house 6 is provided with the elevating mechanism 110.
  • the elevating mechanism 110 includes a main hoisting machine 22 and an auxiliary hoisting machine 24. Also, a main control panel 26 is provided so as to correspond to the main hoisting machine 22, and an auxiliary control panel 28 is provided so as to correspond to the auxiliary hoisting machine 24.
  • the main hoisting machine 22 is constructed by rotatably installing a large pulley 32 and a small pulley 34 on afixingmember 36.
  • the auxiliary hoisting machine 24 is constructed by rotatably installing a large pulley 38 and a small pulley 40 on a rotating member 42.
  • a wire rope 30 is formed into a loop shape, and, of the opposed two places, one place is wound around the large and small pulleys 32 and 34 of the main hoisting machine 22, and the other place is wound around the large and small pulleys 38 and 40 of the auxiliary hoisting machine 24.
  • the wire rope 30 has a sufficiently high strength.
  • a portion of the wire rope 30 hanging down in the elevator shaft 2 through the wire rope through hole 18 is wound around the car pulley 14 so that the car 8 is hung and supported.
  • a portion hanging down through the wire rope through hole 20 is wound around the balance weight pulley 16 so that the balance weight 10 is hung and supported.
  • Figure 3 is a schematic view for illustrating the arranging relationship of the wire rope 30, the hoisting pulleys 22 and 24, and the pulleys 14 and 16.
  • the wire rope 30, which is formed into 'a loop shape, is wound around the small pulley 34 and the large pulley 32 of the main hoisting machine 22, the car pulley 14, the large pulley 38 and the small pulley 40 of the auxiliary hoisting machine 24, and the balance weight pulley 16 in that order, and returns to the small pulley 34 of the main hoisting machine 22.
  • the ends thereof are not fixed unlike the conventional elevating mechanism for the elevator system, and the wire rope 30 is configured so as to be formed into a loop shape and wound around the hoisting machines and pulleys.
  • Figure 4 is a schematic view for illustrating a case where the car 8 is moved up and down by the elevating mechanism 110.
  • the car 8 when the car 8 is pulled up, by rotating the pulleys 32, 34, 38 and 40 in the same manner in the opposite direction, the car 8 can be pulled up through a distance ⁇ + ⁇ in a unit length of time.
  • the predetermined rotational speed of the main hoisting machine 22 is set so as to be high by the control panel 26, and the predetermined rotational speed of the auxiliary hoisting machine 24 is set so as to be low by the control panel 28. Therefore, the travel distance ⁇ in a unit length of time is set so as to be large to some degree, and the travel distance ⁇ is set so as to be small to some degree.
  • the elevator can be operated at a speed such that the car 8 moves through a distance ⁇ + ⁇ in a unit length of time.
  • ⁇ is equal to 0, and the car 8 can be moved up or down through a distance ⁇ in a unit length of time by the rotation of the main hoisting machine 22 only.
  • the elevator is operated by one set of the hoisting machine 22 and the control panel 26 as if the wire rope 30 is fixed to the auxiliary hoisting machine 24.
  • the elevating capability of the elevator can be set in accordance with the crowded condition of the elevator, so that wasteful energy consumption can be reduced.
  • the operation of elevator can be secured at least at a speed such that the car 8 moves through a distance ⁇ or ⁇ in a unit length of time by the rotation of the other hoisting machine, so that inconvenience to elevator users can be mitigated.
  • the main hoisting machine and the auxiliary hoisting machine which have a different rated speed, are provided.
  • the configuration is not limited to this, and two hoisting machines having the same speed may be provided. In this case, even in the case where one hoisting machine is stopped by check or failure, an operating speed that is one-half of the highest operating speed can be secured.
  • the hoisting machines 22 and 24 and the control panels 26 and 28 are arranged in the machine house 6 .
  • the arrangement position is not limited to this.
  • the hoisting machines may be located at another place; for example, the hoisting machines 22 and 24 and the control panels 26 and 28 may be arranged directly in the elevator shaft 2.
  • control panels are provided so as to correspond to the two hoisting machines.
  • one control panel may be used to control the two hoisting machines if the control panel can control the hoisting machines independently.
  • the arrangement positions and constructions of the car, car pulley, balance weight, and balance weight pulley are not limited to those described in this embodiment.
  • two sets of hoisting machines correspond, for example, to the main hoisting machine 22 and the auxiliary hoisting machine 24 in this embodiment, and a loop-shaped rope corresponds, for example, to the wire rope 30.
  • a control unit corresponds, for example, to the control panels 26 and 28 in this embodiment.
  • a pulley corresponds, for example, to the car pulley 14 and the balance weight pulley 16.
  • two hoisting machines can be operated or stopped selectively. Therefore, the elevating speed can be adjusted in accordance with the crowded condition of the elevator, so that excessive energy consumption can be reduced, and economical elevator operation can be achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP02724661A 2002-05-01 2002-05-01 Mechanismus und verfahren zum heraufziehen/absenken eines aufzugs Withdrawn EP1500621A4 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/004360 WO2003093156A1 (fr) 2002-05-01 2002-05-01 Mecanisme elevateur/abaisseur pour ascenseur et procede afferent

Publications (2)

Publication Number Publication Date
EP1500621A1 true EP1500621A1 (de) 2005-01-26
EP1500621A4 EP1500621A4 (de) 2011-03-16

Family

ID=29287948

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02724661A Withdrawn EP1500621A4 (de) 2002-05-01 2002-05-01 Mechanismus und verfahren zum heraufziehen/absenken eines aufzugs

Country Status (5)

Country Link
EP (1) EP1500621A4 (de)
JP (1) JPWO2003093156A1 (de)
KR (1) KR20040007690A (de)
CN (1) CN1522220A (de)
WO (1) WO2003093156A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2263961A1 (de) * 2008-04-15 2010-12-22 Mitsubishi Electric Corporation Aufzugsvorrichtung

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2390219B1 (de) * 2003-12-09 2012-11-14 Mitsubishi Denki Kabushiki Kaisha Aufzugsvorrichtung
JP4580749B2 (ja) * 2004-12-20 2010-11-17 株式会社日立製作所 エレベータシステム
JP2006199419A (ja) * 2005-01-20 2006-08-03 Mitsubishi Electric Corp エレベータ装置
JP4919800B2 (ja) * 2005-05-11 2012-04-18 三菱電機株式会社 エレベータの制御装置
KR101110918B1 (ko) * 2005-12-14 2012-03-14 미쓰비시덴키 가부시키가이샤 엘리베이터 장치
CN103010905A (zh) * 2012-12-18 2013-04-03 桂林龙胜中海科技节能机器开发有限公司 电梯用升降设备
CN103482518B (zh) * 2013-09-06 2015-09-23 中联重科股份有限公司 一种处理卷扬设备故障的方法、***和起重机
CN103693535A (zh) * 2013-12-17 2014-04-02 苏州久德机电科技有限公司 电梯曳引装置
JP6579736B2 (ja) * 2014-08-12 2019-09-25 三菱電機株式会社 機械室レスエレベータの改修方法及び機械室レスエレベータ
CN111232779A (zh) * 2020-03-04 2020-06-05 东南电梯股份有限公司 一种基于绳头位置调整的电梯智能平层***及方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565516A1 (de) * 1992-04-09 1993-10-13 Werner Mag. Dr. Hagel Aufzug
JPH0664863A (ja) * 1992-07-17 1994-03-08 Mitsubishi Electric Corp エレベータ駆動システム
WO2000037350A1 (en) * 1998-12-22 2000-06-29 Otis Elevator Company Elevator machine with counter-rotating rotors

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10324476A (ja) * 1997-05-27 1998-12-08 Toshiba Corp エレベータ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565516A1 (de) * 1992-04-09 1993-10-13 Werner Mag. Dr. Hagel Aufzug
JPH0664863A (ja) * 1992-07-17 1994-03-08 Mitsubishi Electric Corp エレベータ駆動システム
WO2000037350A1 (en) * 1998-12-22 2000-06-29 Otis Elevator Company Elevator machine with counter-rotating rotors

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO03093156A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2263961A1 (de) * 2008-04-15 2010-12-22 Mitsubishi Electric Corporation Aufzugsvorrichtung
EP2263961A4 (de) * 2008-04-15 2014-03-26 Mitsubishi Electric Corp Aufzugsvorrichtung

Also Published As

Publication number Publication date
CN1522220A (zh) 2004-08-18
EP1500621A4 (de) 2011-03-16
WO2003093156A1 (fr) 2003-11-13
JPWO2003093156A1 (ja) 2005-09-08
KR20040007690A (ko) 2004-01-24

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