EP1818306B1 - Machine de levage d'ascenseur - Google Patents

Machine de levage d'ascenseur Download PDF

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Publication number
EP1818306B1
EP1818306B1 EP07009944A EP07009944A EP1818306B1 EP 1818306 B1 EP1818306 B1 EP 1818306B1 EP 07009944 A EP07009944 A EP 07009944A EP 07009944 A EP07009944 A EP 07009944A EP 1818306 B1 EP1818306 B1 EP 1818306B1
Authority
EP
European Patent Office
Prior art keywords
rotating shaft
main rope
winding portion
hoisting machine
elevator 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.)
Expired - Lifetime
Application number
EP07009944A
Other languages
German (de)
English (en)
Other versions
EP1818306A1 (fr
Inventor
Hukami c/o Mitsubishi Denki K.K. Aoki
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11736787&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1818306(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP1818306A1 publication Critical patent/EP1818306A1/fr
Application granted granted Critical
Publication of EP1818306B1 publication Critical patent/EP1818306B1/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
    • 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
    • B66B11/0438—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with a gearless driving, e.g. integrated sheave, drum or winch in the stator or rotor of the cage motor
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
    • D07B1/025—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics comprising high modulus, or high tenacity, polymer filaments or fibres, e.g. liquid-crystal polymers
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D07B1/165—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/1028—Rope or cable structures characterised by the number of strands
    • D07B2201/1036—Rope or cable structures characterised by the number of strands nine or more strands respectively forming multiple layers
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2071—Spacers
    • D07B2201/2073—Spacers in circumferencial direction
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2071—Spacers
    • D07B2201/2074—Spacers in radial direction
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2075—Fillers
    • D07B2201/2076—Fillers having a lubricant function
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2083—Jackets or coverings
    • D07B2201/2087—Jackets or coverings being of the coated type
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/20—Organic high polymers
    • D07B2205/2046—Polyamides, e.g. nylons
    • D07B2205/205—Aramides
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/20—Organic high polymers
    • D07B2205/2064—Polyurethane resins
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2007—Elevators

Definitions

  • the present invention relates to an elevator hoisting machine for raising and lowering an elevator car by means of a main rope.
  • a drive sheave being a separate member from a rotating shaft is fixed to the rotating shaft, which is rotated by a drive motor.
  • Rope grooves are formed in the drive sheave, and a main rope for suspending an elevator car is wound around the drive sheave.
  • the drive sheave is required to rotate smoothly while constantly bearing the rope load and generating traction. Hence, it is necessary for the drive sheave to have sufficient hardness and strength, and to be manufacture precisely. Furthermore, since a large hoisting torque is transmitted from the drive motor, the drive sheave is fitted to the rotating shaft firmly by methods including shrink fitting, using keys, etc. Consequently, conventional drive sheaves are constituted by thick-walled, high-strength castings, hindering reductions in the size and weight of elevator hoisting machines.
  • D/d drive sheave diameter/main rope diameter
  • JP 09142761 relates to a hoisting machine for an elevator.
  • a synchronous motor includes a rotor having a yoke integrally attached to the outer periphery of a protruding portion of a shaft and a magnetic pole with magnets and a stator composed of an armature.
  • the shaft is supported by two mounts and a brake is disposed at the rope winding portion.
  • the present invention aims to solve the above problems and an object of the present invention is to provide an elevator hoisting machine facilitating assembly and also enabling reductions in size and weight by reducing the number of parts.
  • an elevator hoisting machine including: a bearing mount; a rotating shaft rotatably supported in the bearing mount, rotation of the rotating shaft raising and lowering an elevator car by means of a main rope; a drive motor for rotating the rotating shaft; and a braking device for braking the rotation of the rotating shaft, wherein a main rope winding portion provided with a rope groove into which the main rope is inserted is formed integrally on the rotating shaft.
  • Figure 1 is a side elevation showing an elevator hoisting machine according to Embodiment 1 useful for understanding the present invention.
  • a pair of bearing mounts 2 and 3 are fixed on a base 1.
  • Bearings 4 and 5 are supported in the bearing mounts 2 and 3, respectively, and first and second end portions of a rotating shaft 6 are rotatably supported by means of these bearings 4 and 5.
  • the rotating shaft 6 is composed of a carbon steel, for example.
  • a main rope winding portion 6a is formed integrally on an intermediate portion of the rotating shaft 6, a main rope 7 for suspending a car and a counterweight (neither shown) being wound around the main rope winding portion 6a.
  • a plurality of rope grooves 6b into which the main rope 7 is inserted are disposed on the main rope winding portion 6a.
  • the main rope winding portion 6a is forged during manufacture of the rotating shaft 6.
  • the rope grooves 6b may be formed by turning, or they may also be formed by forging. When the rope grooves 6b are formed by forging, the number of manufacturing processes is reduced and waste material is not generated.
  • a drive motor 8 for rotating the rotating shaft 6 includes: a stator 9 fixed to the base 1; and a rotor 10 mounted to an intermediate portion of the rotating shaft 6.
  • the rotating shaft 6 is rotated directly by the drive motor 8 without intermediation by gears.
  • a braking device 11 for braking rotation of the rotating shaft 6 includes: a brake disk 12 rotated together with the rotating shaft 6; and a braking device body 13 for braking rotation of the brake disk 12.
  • a diameter of a portion of the rotating shaft 6 adjacent to the main rope winding portion 6a is smaller than a diameter of the main rope winding portion 6a, the brake disk 12 being fixed to the rotating shaft 6 by being joined to an axial end surface of the main rope winding portion 6a.
  • the brake disk 12 is fixed to the rotating shaft 6 by means of a plurality of bolts 14 extending parallel to an axial direction of the rotating shaft 6 and engaged in the end surface of the main rope winding portion 6a.
  • Figure 2 is a perspective showing a construction of the main rope 7 from Figure 1 .
  • an inner strand layer 24 having a plurality of inner strands 22 and filler strands 23 disposed in gaps between these inner strands 22 is disposed around a core wire 21.
  • Each of the inner strands 22 is composed of a plurality of aramid fibers and an impregnating material such as a polyurethane or the like.
  • the filler strands 23 are composed of a polyamide, for example.
  • An outer strand layer 26 having a plurality of outer strands 25 is disposed around an outer circumference of the inner strand layer 24.
  • Each of the outer strands 25 is composed of a plurality of aramid fibers and an impregnating material such as a polyurethane or the like in a similar manner to the inner strands 22.
  • a friction-reducing coating layer 27 for preventing abrasion of the strands 22 and 25 due to friction among the strands 22 and 25 is disposed between the inner strand layer 24 and the outer strand layer 26.
  • a protective coating layer 28 is also disposed on an outer circumferential portion of the outer strand layer 26.
  • a synthetic fiber rope of this kind has a high coefficient of friction compared to a steel rope and is superior in flexibility.
  • the main rope winding portion 6a is formed integrally on the rotating shaft 6 without using a separate drive sheave, the number of parts can be reduced, and the need for shrink fitting and a key work is eliminated, enabling assembly to be facilitated. Furthermore, the diameter of the main rope winding portion 6a is minimized, enabling overall reductions in size and weight.
  • An elevator hoisting machine of this kind can be used with a main rope composed of a steel rope if a sufficient diameter is ensured at the main rope winding portion 6a, but the elevator hoisting machine of this kind is more effective when used with the main rope 7 composed of the synthetic fiber rope in order to enable reductions in size and weight.
  • the main rope winding portion 6a is composed of the same material as the rotating shaft 6, the rope grooves 6b are easily worn if the steel rope is used. In contrast to this, the rope grooves 6b are less likely to become worn in the case of the synthetic fiber rope.
  • the synthetic fiber rope has a high coefficient of friction, it is not necessary to provide undercut grooves to increase friction inside the rope grooves 6b, and from these viewpoints also, the elevator hoisting machine of this kind is more effective when used with the main rope 7 composed of the synthetic fiber rope.
  • the brake disk 12 can be fixed to the rotating shaft 6 simply and firmly.
  • FIG 3 is a side elevation showing an elevator hoisting machine according to Embodiment 2 useful for understanding the present invention.
  • a bearing mount 32 is fixed on a base 31.
  • a bearing 33 is supported in the bearing mount 32, and an intermediate portion of a rotating shaft 34 is rotatably supported by means of this bearing 33.
  • the rotating shaft 34 is composed of a carbon steel, for example.
  • a main rope winding portion 34a is formed integrally on a first end portion of the rotating shaft 34, a main rope 7 being wound around the main rope winding portion 34a.
  • a plurality of rope grooves 34b into which the main rope 7 is inserted are disposed on the main rope winding portion 34a.
  • a drive motor 35 for rotating the rotating shaft 34 includes: a case 36 fixed to the bearing mount 32; a stator 37 fixed inside this case 36; and a rotor 38 mounted to the rotating shaft 34.
  • the rotating shaft 34 is rotated directly by the drive motor 35 without intermediation by gears.
  • the type of drive motor 35 used employs a permanent magnet in the rotor 38.
  • a bearing 39 for rotatably supporting a second end portion of the rotating shaft 34 is held in the case 36.
  • a braking device 11 for braking rotation of the rotating shaft 34 includes: a brake disk 12 rotated together with the rotating shaft 34; and a braking device body 13 for braking rotation of the brake disk 12.
  • the brake disk 12 is fixed to the rotating shaft 34 by being joined to an axial end surface of the main rope winding portion 34a. Furthermore, the brake disk 12 is fixed to the rotating shaft 34 by means of a plurality of bolts 14 extending parallel to an axial direction of the rotating shaft 34 and engaged in the end surface of the main rope winding portion 34a.
  • the main rope winding portion 34a may be formed in one end portion of the rotating shaft 34, effectively enabling an overall reduction in size when the number of rope grooves 34b is small.
  • Figure 4 is a side elevation showing an elevator hoisting machine according to Embodiment 3 of the present invention.
  • a pair of first and second bearing mounts 42 and 43 are fixed on a base 41.
  • Bearings 44 and 45 are supported in the bearing mounts 42 and 43, respectively, and a rotating shaft 46 is rotatably supported by means of these bearings 44 and 45.
  • the rotating shaft 46 is composed of a carbon steel, for example.
  • a main rope winding portion 46a is formed integrally on the rotating shaft 46, a main rope 7 being wound around the main rope winding portion 46a.
  • a plurality of rope grooves 46b into which the main rope 7 is inserted are disposed on the main rope winding portion 46a.
  • a drive motor 47 for rotating the rotating shaft 46 includes: a case 48 fixed to the first bearing mount 42; a stator 49 fixed inside this case 48; and a rotor 50 mounted to an end portion of the rotating shaft 46.
  • the rotating shaft 46 is rotated directly by the drive motor 47 without intermediation by gears.
  • the type of drive motor 47 used employs a permanent magnet in the rotor 50.
  • a braking device 11 for braking rotation of the rotating shaft 46 includes: a brake disk 12 rotated together with the rotating shaft 46; and a braking device body 13 for braking rotation of the brake disk 12.
  • a diameter of a portion of the rotating shaft 46 adjacent to the main rope winding portion 46a is smaller than a diameter of the main rope winding portion 46a, the brake disk 12 being fixed to the rotating shaft 46 by being joined to an axial end surface of the main rope winding portion 46a.
  • the brake disk 12 is fixed to the rotating shaft 46 by means of a plurality of bolts 14 extending parallel to an axial direction of the rotating shaft 46 and engaged in the end surface of the main rope winding portion 46a.
  • the drive motor 47 is disposed so as to be overhung outside the pair of bearing mounts 42 and 43. Consequently, this construction is suitable when a comparatively compact drive motor 47 is used, facilitating further overall reductions in size such as enabling the base 41 to be made smaller, etc.
  • Embodiments 1 to 3 a gearless type of hoisting machine is shown, but the present invention can also be applied to a geared type of hoisting machine in which a driving force from the drive motor is transmitted to the rotating shaft by means of a speed reduction mechanism.

Landscapes

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

Claims (1)

  1. Machine de levage d'ascenseur, comprenant :
    un support de palier (42, 43) comportant une ouverture traversante ;
    un axe rotatif (46) supporté de manière rotative dans et s'étendant à travers au moins une partie de ladite ouverture traversante dudit support de palier (42, 43), la rotation dudit axe rotatif (46) faisant monter et descendre une cabine d'ascenseur au moyen d'un câble principal (7) ;
    un moteur d'entraînement (47) pour entraîner en rotation ledit axe rotatif (46) ;
    un dispositif de freinage (11) pour freiner ladite rotation dudit axe rotatif (46),
    une partie d'enroulement de câble principal (46a) dotée d'une rainure de câble (46b) dans laquelle ledit câble principal (7) est inséré, formée intégralement sur ledit axe rotatif (34, 46) et,
    un rotor (50) dudit moteur d'entraînement (47) monté sur ledit axe rotatif (46), ledit axe rotatif (46) étant entraîné directement par ledit moteur d'entraînement (47) ;
    dans laquelle une première partie d'extrémité et une partie intermédiaire dudit axe rotatif (46) sont supportées par ledit support de palier (42, 43), ladite partie d'enroulement de câble principal (46a) étant formée sur une partie intermédiaire dudit axe rotatif (46), et ledit rotor (50) étant monté sur une seconde partie d'extrémité dudit axe rotatif (46).
EP07009944A 2000-12-11 2000-12-11 Machine de levage d'ascenseur Expired - Lifetime EP1818306B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/JP2000/008747 WO2002048016A1 (fr) 2000-12-11 2000-12-11 Treuil d'ascenseur
EP00980037A EP1357076B1 (fr) 2000-12-11 2000-12-11 Treuil d'ascenseur

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP00980037.6 Division 2000-12-11
EP00980037A Division-Into EP1357076B1 (fr) 2000-12-11 2000-12-11 Treuil d'ascenseur
EP00980037A Division EP1357076B1 (fr) 2000-12-11 2000-12-11 Treuil d'ascenseur

Publications (2)

Publication Number Publication Date
EP1818306A1 EP1818306A1 (fr) 2007-08-15
EP1818306B1 true EP1818306B1 (fr) 2011-08-31

Family

ID=11736787

Family Applications (4)

Application Number Title Priority Date Filing Date
EP06014916.8A Expired - Lifetime EP1707528B2 (fr) 2000-12-11 2000-12-11 Machine d'entraînement pour ascenseur
EP00980037A Revoked EP1357076B1 (fr) 2000-12-11 2000-12-11 Treuil d'ascenseur
EP10178286A Expired - Lifetime EP2263962B1 (fr) 2000-12-11 2000-12-11 Machine d'entraînement pour ascenseur
EP07009944A Expired - Lifetime EP1818306B1 (fr) 2000-12-11 2000-12-11 Machine de levage d'ascenseur

Family Applications Before (3)

Application Number Title Priority Date Filing Date
EP06014916.8A Expired - Lifetime EP1707528B2 (fr) 2000-12-11 2000-12-11 Machine d'entraînement pour ascenseur
EP00980037A Revoked EP1357076B1 (fr) 2000-12-11 2000-12-11 Treuil d'ascenseur
EP10178286A Expired - Lifetime EP2263962B1 (fr) 2000-12-11 2000-12-11 Machine d'entraînement pour ascenseur

Country Status (5)

Country Link
EP (4) EP1707528B2 (fr)
JP (1) JPWO2002048016A1 (fr)
CN (1) CN1192971C (fr)
DE (2) DE60045719D1 (fr)
WO (1) WO2002048016A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL180964A (en) * 2002-09-05 2010-11-30 Inventio Ag Drive engine for a lift installation and method of mounting a drive engine
IL157277A (en) * 2002-09-05 2007-12-03 Inventio Ag Elevator and method of arranging the motor of an elevator
DE20303786U1 (de) * 2003-03-07 2003-05-08 Ziehl-Abegg AG, 74653 Künzelsau Treibscheibenaufzug
CN1297467C (zh) * 2003-12-04 2007-01-31 扬州三星电梯有限公司 永磁同步高速无齿轮曳引机
NZ540310A (en) * 2004-06-19 2006-03-31 Inventio Ag Drive for a lift installation
CN1304267C (zh) * 2004-10-09 2007-03-14 扬州三星电梯有限公司 三点式永磁同步无齿轮曳引机组
FR2890499B1 (fr) * 2005-09-05 2007-11-16 Leroy Somer Moteurs Machine electrique tournante
JP5776163B2 (ja) * 2010-10-15 2015-09-09 株式会社明電舎 巻上機
JP5955563B2 (ja) * 2012-01-05 2016-07-20 株式会社東芝 巻上機およびそれを備えた回転電機
DE102014017357A1 (de) * 2014-11-25 2016-05-25 Thyssenkrupp Ag Aufzuganlage

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1172839C (zh) * 1997-03-18 2004-10-27 三菱电机株式会社 电梯用提升装置
JPS58162485A (ja) * 1982-03-19 1983-09-27 株式会社東芝 エレベ−タの巻上機
JPS617185A (ja) * 1984-06-22 1986-01-13 株式会社東芝 エレベ−タ用巻上装置
JP2930591B2 (ja) * 1987-08-28 1999-08-03 本田技研工業株式会社 鋳鉄部材における他部材との取付け部強化方法
FI114419B (fi) * 1994-04-07 2004-10-15 Kone Corp Hissikoneisto
FI95689C (fi) * 1994-06-23 1996-03-11 Kone Oy Hissikoneisto
BR9500779A (pt) * 1994-03-02 1995-10-24 Inventio Ag Cabo como meio de suporte para elevadores
JPH09142761A (ja) * 1995-11-24 1997-06-03 Mitsubishi Electric Corp エレベータ用巻上機
US5881843A (en) * 1996-10-15 1999-03-16 Otis Elevator Company Synthetic non-metallic rope for an elevator
JP2001151443A (ja) * 1999-11-30 2001-06-05 Toshiba Digital Media Engineering Corp 巻上装置及びエレベータ装置

Also Published As

Publication number Publication date
EP1357076A1 (fr) 2003-10-29
WO2002048016A1 (fr) 2002-06-20
DE60045719D1 (de) 2011-04-21
EP1707528B2 (fr) 2019-09-11
DE60043829D1 (de) 2010-03-25
CN1192971C (zh) 2005-03-16
EP1357076B1 (fr) 2010-02-10
EP1357076A4 (fr) 2004-04-07
EP2263962B1 (fr) 2012-08-29
EP1707528B1 (fr) 2011-03-09
EP1818306A1 (fr) 2007-08-15
EP2263962A1 (fr) 2010-12-22
EP1707528A1 (fr) 2006-10-04
JPWO2002048016A1 (ja) 2004-04-15
CN1433374A (zh) 2003-07-30

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