EP1790611A1 - Équipement d'ascenseur - Google Patents

Équipement d'ascenseur Download PDF

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Publication number
EP1790611A1
EP1790611A1 EP04773016A EP04773016A EP1790611A1 EP 1790611 A1 EP1790611 A1 EP 1790611A1 EP 04773016 A EP04773016 A EP 04773016A EP 04773016 A EP04773016 A EP 04773016A EP 1790611 A1 EP1790611 A1 EP 1790611A1
Authority
EP
European Patent Office
Prior art keywords
brake
rotor
main shaft
sheave
outer periphery
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Withdrawn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
EP04773016A
Other languages
German (de)
English (en)
Other versions
EP1790611A4 (fr
Inventor
Kazuaki Mitsubishi Denki K. K. NAKAMURA
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 EP1790611A1 publication Critical patent/EP1790611A1/fr
Publication of EP1790611A4 publication Critical patent/EP1790611A4/fr
Withdrawn legal-status Critical Current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
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway

Definitions

  • the present invention relates to an elevator device configured so that a traction machine is separated into a drive device and a brake device, and the separated drive device and brake device are separately installed in a hoistway.
  • a traction machine in conventional elevator devices, includes a drive device and a brake device together, the drive device and the brake device are placed in parallel coaxially with the traction machine, and the brake device is placed outside the drive device (for example, see Patent Document 1).
  • a traction machine is placed in a lower portion of a hoistway (for example, see Patent Document 2). Further, in some elevator devices, a traction machine is placed in a top portion of a hoistway (for example, see Patent Document 3).
  • Patent Document 1 International Publication WO01/042121
  • Patent Document 2 Japanese Patent Laid-Open No. 2000-289954
  • Patent Document 3 Japanese Patent No. 2593288
  • the drive device and the brake device are placed in parallel coaxially with the traction machine, and the brake device is placed outside the drive device, thereby increasing an axial length.
  • the traction machine is placed in the lower portion of the hoistway, which increases the amount of use of hoistway devices such as a return pulley or a rope to increase space on a plane of the hoistway and costs.
  • hoistway devices such as a return pulley or a rope to increase space on a plane of the hoistway and costs.
  • maintenance work of the brake device needs to be performed by an operator riding on top of a car and is difficult, and a protection is needed of the operator from hitting his/her head on a ceiling of the hoistway resulting from an unexpected rise of the car.
  • the present invention is achieved to solve the above described problems, and has an object to provide an elevator device in which a traction machine is separated into a drive device and a brake device, and the separated drive device and brake device are separately installed, thereby reducing installation space in a hoistway and facilitating maintenance work of the brake device.
  • the present invention provides an elevator device characterized in that a traction machine is separated into a drive device and a brake device, said separated drive device is mounted to an upper return pulley mounted to a top securing portion of a hoistway, and said separated brake device is mounted to at least one of a car side suspension pulley and a counterweight side suspension pulley.
  • the present invention provides an elevator device characterized in that a traction machine is separated into a drive device and brake devices, said separated drive device is mounted to an upper return pulley mounted to a top securing portion of a hoistway, and said separated brake devices are mounted to both a car side suspension pulley and a counterweight side suspension pulley.
  • the present invention provides an elevator device characterized in that the upper return pulley to which the drive device is mounted comprises: a rotor; a main shaft integrally provided in the center of the rotor; a base body to which the main shaft and the rotor are rotatably mounted; a sheave provided in an outer periphery of the rotor; a rotor provided in an inner side surface of the outer periphery of the rotor; and a stator that is placed on an outer periphery of the base body so as to face the rotor, and said main shaft, the sheave, the rotor, and the stator are placed axially substantially in line.
  • the present invention provides an elevator device characterized in that the suspension pulley to which the brake device is mounted comprises: a rotor; a main shaft integrally provided in the center of the rotor; a base body to which the main shaft and the rotor are rotatably mounted; a sheave provided in an outer periphery of the rotor; a brake surface formed in an inner side surface of the outer periphery of the rotor; a brake placed on an outer periphery of the base body; and a brake piece that is placed outside the brake so as to face the brake surface of said rotor, and is pressed against the brake surface by energizing said brake, and said main shaft, the sheave, the brake surface, the brake, and the brake piece are placed axially substantially in line.
  • the present invention provides an elevator device characterized in that the suspension pulley to which the brake device is mounted comprises: a main shaft; a sheave rotatably mounted to the main shaft; a brake placed to face, from outside, a main rope wound around the sheave; and a brake piece that is placed inside the brake, and pressed against the main rope by energizing said brake, and said main shaft, the sheave, the brake, and the brake piece are placed axially substantially in line.
  • the present invention provides an elevator device characterized in that the suspension pulley to which the brake device is mounted comprises: a rotor; a main shaft integrally provided in the center of the rotor; a base body to which the rotor and the main shaft are rotatably mounted; a sheave provided in an outer periphery of the rotor and around which a main rope is wound; a brake surface formed in an inner side surface of the outer periphery of the rotor; a first brake placed on an outer periphery of the base body; a first brake piece that is placed outside the first brake so as to face the brake surface of said rotor, and is pressed against the brake surface by energizing said first brake; a second brake placed on an inner side surface of an outermost portion provided outside the outer periphery of said base body; and a second brake piece that is placed to face, from outside, the main rope wound around said sheave inside the second brake, and pressed against the main rope by energizing said second brake
  • the traction machine is separated into the drive device and the brake device, and the separated drive device and brake device are separately installed in the hoistway, thereby reducing the installation space in the hoistway.
  • the separated brake device is mounted to at least one or both of the car side suspension pulley and the counterweight side suspension pulley, thereby facilitating the maintenance work of the brake device.
  • a 2:1 roping type elevator device will be described by way of example.
  • a 2:1 roping type elevator device is such that a car 1 of an elevator and a counterweight 2 are provided in a hoistway so as to be moved up and down by a main rope 3.
  • An upper return pulley 5 to which a drive device of a traction machine is mounted is secured to a top securing portion 4 of the hoistway.
  • a car side suspension pulley 6 to which a first brake device of the traction machine is mounted is provided below the car 1.
  • a counterweight side suspension pulley 7 to which a second brake device of the traction machine is mounted is provided on top of the counterweight 2.
  • the main rope 3 has one end secured to the top securing portion 4 of the hoistway and suspended downward, wound around the car side suspension pulley 6, then bent upward, wound around the upper return pulley 5 secured to the top securing portion 4 of the hoistway, then again bent downward and suspended, wound around the counterweight side suspension pulley 7, and then bent upward, and the other end secured to the top securing portion 4 of the hoistway.
  • the brake devices are mounted to the car side suspension pulley 6 and the counterweight side suspension pulley 7, and a brake device for normal stationary holding is mounted to, for example, the car side suspension pulley 6, and a separate emergency brake device, if necessary, is mounted to, for example, the counterweight side suspension pulley 7.
  • the normal brake device may be mounted to either the car side suspension pulley 6 or the counterweight side suspension pulley 7.
  • FIG. 2 is a sectional view of a structure of an upper return pulley to which a drive device is mounted of a traction machine of the elevator device.
  • the upper return pulley 5 includes: a rotor 9; a main shaft 10 integrally provided in the center of the rotor 9; a base body 12 to which the rotor 9 and the main shaft 10 are rotatably mounted via a bearing 11; a sheave 13 provided in an outer side surface of an outer periphery of the rotor 9 and around which the main rope 3 is wound; a rotor 14 secured to an inner side surface of the outer periphery of the rotor 9; a stator 15 that is placed on an outer periphery of the base body 12, faces the rotor 14, and serves as a drive source; an encoder 16 mounted coaxially with the main shaft 10; a mounting leaf spring 17 that mounts the encoder 16 to the base body 12; and a base portion 18 for securing the whole upper return pulley 5 to the top
  • Figure 3 is a sectional view of a structure of a cage side suspension pulley to which a first brake device is mounted of the traction machine of the elevator device.
  • the car side suspension pulley 6 includes: a rotor 9; a main shaft 10 integrally provided in the center of the rotor 9; a base body 12 to which the rotor 9 and the main shaft 10 are rotatably mounted via a bearing 11; a sheave 13 provided in an outer side surface of an outer periphery of the rotor 9 and around which the main rope 3 is wound; a brake surface 19 formed in an inner side surface of the outer periphery of the rotor 9; a first brake 20 placed on an outer periphery of the base body 12; a first brake piece 21 that is placed outside the first brake 20, faces the brake surface 19 of the rotor 9, and is pressed against the brake surface 19 by energizing the first brake 20 to exert braking effect; and a base portion 18 for securing the whole cage side suspension pulle
  • Figure 4 is a sectional view of a counterweight side suspension pulley to which a second brake device is mounted of the traction machine of the elevator device.
  • Figure 5 is a side view of the counterweight side suspension pulley to which the second brake device in Figure 4 is mounted being mounted to a counterweight.
  • the counterweight side suspension pulley 7 includes: a main shaft 27; a bearing 28 mounted to an outer periphery of the main shaft 27; a sheave 29 that has an inner side to which the bearing 28 is secured, is rotatably mounted to the main shaft 27, and has rope grooves in an outer peripheral surface around which the main rope 3 is wound; a second brake 25 secured between a pair of right and left counterweight frames 2a provided on top of the counterweight 2, and placed to face the rope grooves in the outer peripheral surface of the sheave 29; and a second brake piece 26 that is placed inside the second brake 25, faces the main rope 3 wound around the rope grooves of the sheave 29, and is pressed against the main rope 3 by energizing the second brake 25 to exert braking effect.
  • the second brake device may be mounted to the cage side suspension pulley 6 with a similar structure.
  • Figure 6 is a sectional view of a cage side suspension pulley to which a first brake device and a second brake device are mounted of a traction machine of an elevator device according to Second Embodiment of the present invention.
  • a car side suspension pulley 6 in Second Embodiment includes: a rotor 9; a main shaft 10 integrally provided in the center of the rotor 9; a base body 12 to which the rotor 9 and the main shaft 10 are rotatably mounted via a bearing 11; a sheave 13 provided in an outer side surface of an outer periphery of the rotor 9 and around which the main rope 3 is wound; a brake surface 19 formed in an inner side surface of the outer periphery of the rotor 9; a first brake 20 placed on an outer periphery of the base body 12; a first brake piece 21 that is placed outside the first brake 20, faces the brake surface 19 of the rotor 9, and is pressed against the brake surface 19 by energizing the first brake 20 to exert braking effect; and a base portion 18 for securing the whole car side suspension pulley 6 to a lower portion of the car 1, as in First Embodiment in Figure 3.
  • a second brake device that brakes the main rope 3 from outside is further provided outside the sheave 13.
  • the second brake device includes: a second brake 25 placed on an inner side surface of an outermost portion provided outside the outer periphery of the base body 12; and a second brake piece 26 that is placed inside the second brake 25, faces the main rope 3 wound around the sheave 13, and is pressed against the main rope 3 by energizing the second brake 25 to exert braking effect.
  • the first brake 20 and the first brake piece 21 may be used for normal stationary holding of a car, and the second brake 25 and the second brake piece 26 may be used for emergency braking, or may be vice versa.
  • the main shaft 10, the sheave 13, the brake surface 19, the first brake 20, the first brake piece 21, the second brake 25, and the second brake piece 26 are placed so that the centers of rotation thereof are axially substantially in line.
  • a first brake device and a second brake device may be mounted to a counterweight side suspension pulley 7 with a similar structure.
  • the brake device for normal stationary holding and the brake device for emergency braking are placed in the same suspension pulley, thereby allowing simultaneous maintenance of both the braking devices and facilitating maintenance work.
  • the elevator device is configured so that the traction machine is separated into the drive device and the brake device, and the separated drive device and brake device are separately installed in the hoistway, thereby reducing installation space in the hoistway and facilitating maintenance work of the brake device.

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)
EP04773016A 2004-09-13 2004-09-13 Équipement d'ascenseur Withdrawn EP1790611A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/013334 WO2006030484A1 (fr) 2004-09-13 2004-09-13 Équipement d'ascenseur

Publications (2)

Publication Number Publication Date
EP1790611A1 true EP1790611A1 (fr) 2007-05-30
EP1790611A4 EP1790611A4 (fr) 2012-10-03

Family

ID=36059751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04773016A Withdrawn EP1790611A4 (fr) 2004-09-13 2004-09-13 Équipement d'ascenseur

Country Status (4)

Country Link
EP (1) EP1790611A4 (fr)
JP (1) JP4677409B2 (fr)
CN (1) CN1849258A (fr)
WO (1) WO2006030484A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5223248B2 (ja) * 2007-06-29 2013-06-26 三菱電機株式会社 エレベータの綱車装置
JP5229860B2 (ja) * 2007-08-10 2013-07-03 東芝エレベータ株式会社 エレベータ用巻上機
JP5397008B2 (ja) * 2009-05-15 2014-01-22 三菱電機ビルテクノサービス株式会社 エレベーター装置
JP5616195B2 (ja) * 2010-11-02 2014-10-29 株式会社日立製作所 エレベーター装置
EP2859245B1 (fr) * 2012-06-12 2017-03-01 Inventio AG Installation d'ascenseur
JP6316662B2 (ja) * 2014-05-30 2018-04-25 三菱電機ビルテクノサービス株式会社 エレベータ
CN104925627A (zh) * 2015-07-09 2015-09-23 苏州润吉驱动技术有限公司 一种双定子线圈曳引机
CN105197741A (zh) * 2015-09-24 2015-12-30 苏州润吉驱动技术有限公司 一种双定子节能电梯曳引机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1367017A1 (fr) * 2001-03-08 2003-12-03 Mitsubishi Denki Kabushiki Kaisha Ascenseur

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02106590A (ja) * 1988-10-14 1990-04-18 Mitsubishi Electric Corp エレベータ装置
JPH0796432B2 (ja) * 1989-05-26 1995-10-18 三菱電機株式会社 リニアモータ駆動エレベータ
FI94123C (fi) * 1993-06-28 1995-07-25 Kone Oy Vetopyörähissi
JP3148610B2 (ja) * 1995-12-11 2001-03-19 三菱電機株式会社 エレベータ装置
JP2001039647A (ja) * 1999-07-30 2001-02-13 Toshiba Corp エレベータ装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1367017A1 (fr) * 2001-03-08 2003-12-03 Mitsubishi Denki Kabushiki Kaisha Ascenseur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006030484A1 *

Also Published As

Publication number Publication date
WO2006030484A1 (fr) 2006-03-23
JPWO2006030484A1 (ja) 2008-05-08
JP4677409B2 (ja) 2011-04-27
EP1790611A4 (fr) 2012-10-03
CN1849258A (zh) 2006-10-18

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