EP1468950B1 - Antrieb mit Linearmotor, Aufzug mit diesem Antrieb und Verfahren zum Betrieb dieses Antriebs - Google Patents

Antrieb mit Linearmotor, Aufzug mit diesem Antrieb und Verfahren zum Betrieb dieses Antriebs Download PDF

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Publication number
EP1468950B1
EP1468950B1 EP04008042A EP04008042A EP1468950B1 EP 1468950 B1 EP1468950 B1 EP 1468950B1 EP 04008042 A EP04008042 A EP 04008042A EP 04008042 A EP04008042 A EP 04008042A EP 1468950 B1 EP1468950 B1 EP 1468950B1
Authority
EP
European Patent Office
Prior art keywords
secondary part
drive
primary parts
normal force
primary
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
EP04008042A
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German (de)
English (en)
French (fr)
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EP1468950A1 (de
Inventor
Johannes Kocher
Jörg Evertz
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Inventio AG
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Inventio AG
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Publication date
Application filed by Inventio AG filed Critical Inventio AG
Priority to EP04008042A priority Critical patent/EP1468950B1/de
Publication of EP1468950A1 publication Critical patent/EP1468950A1/de
Application granted granted Critical
Publication of EP1468950B1 publication Critical patent/EP1468950B1/de
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
    • 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
    • B66B11/0407—Driving gear ; Details thereof, e.g. seals actuated by an electrical linear motor

Definitions

  • the invention relates to a drive with a linear motor, a lift with this drive and method for operating this drive according to the definition of the independent claims.
  • EP-A-0503980 discloses a drive with a linear motor, which linear motor has a secondary part between a first primary part and a second primary part. The width of air gaps between the primary parts and the secondary part remains constant and thus this linear motor does not take over a braking function. Accordingly, in an elevator with this drive, the functions of the holding and trapping brake are realized by specialized assemblies.
  • a first object of the present invention is to provide a drive with a linear motor, which drive also performs a braking function.
  • a second object of this invention is to provide a method of operating this drive.
  • a third object of this invention is to provide an elevator with such a drive.
  • the elevator has at least one cabin for moving people or goods with this drive.
  • the drive advantageously consists of several series-connected linear motors. Drives with diverse overall performance can be thus put together according to the modular principle with little effort and low cost.
  • the width of the air gaps between the primary parts and the secondary part of each linear motor is individually controlled, so that unwanted, the linear motor damaging contacts of the primary parts with the secondary part or performance variations due to changes in the width of the air gaps can be avoided.
  • the Fig. 1 and 2 show schematic representations of an embodiment of the drive 10th
  • the drive has at least one linear motor, in which at least one first primary part 1, 1 ' and at least one second primary part 2, 2' are spaced from each other in a plane XY by a secondary part 3 .
  • the drive has two linear motors, a first linear motor consists of a first pair of primary parts 1, 2 to the secondary part 3, a second linear motor consists of a second pair of primary parts 1 ', 2' to the secondary part 3.
  • the linear motor is a synchronous linear motor whose primary parts are excited by permanent magnets of the secondary part.
  • the primary parts have windings through which an electric current can flow in a known manner.
  • an electric current can flow in a known manner.
  • an attractive normal force along a direction of action Y transverse to the direction of movement of the drive. If no electric current flows, the linear motor is deactivated.
  • a residual normal force acting between the secondary part and the currentless primary parts is neglected in the context of this description.
  • the drive 10 has a support means 4 , which carries support means all components of the drive with the exception of the secondary part.
  • a support means 4 which carries support means all components of the drive with the exception of the secondary part.
  • Fig. 1 and 2 is the supporting means of two struts 4.1, 4.2, a first L ticasverstrebung 4.1 arranged on the first side of the secondary part and a second stringer is 4.2 arranged on the second side of the secondary part.
  • the support means is rigid and, for example, executed in metal.
  • the Leksverstrebonne are connected by means of at least one U-shaped cross brace 4.3 in the direction of action Y.
  • the drive 10 is guided over at least one guide element 6, 6 ', 7, 7 ' along the secondary part.
  • Fig. 1 is in each primary part 1, 1 ', 2, 2', a guide element 6, 6 ', 7, 7' attached.
  • the guide elements are mounted in pairs on both sides of the secondary part in end portions of the primary parts and mounted on eccentric shafts 11, 11 ', 12, 12' . With these four guide elements there is a uniformly distributed and stable guidance of the drive along the secondary part.
  • the drive 10 has at least one compensating means 5 which acts with a compensating normal force against the attractive normal force between each of the primary parts and the secondary part.
  • the compensation means is a first spring 5.1, whose spring ends on the first side of the secondary part first primary parts 1, 1 ' connects to each other and pushes away from the secondary part.
  • the compensating means is a second spring 5.1, whose spring ends on the second side of the secondary part second primary parts of the secondary part pushes away.
  • the compensation means is arranged substantially along the direction of movement of the drive.
  • the compensation agent is made of known and proven elastic materials such as metal.
  • the compensation means is mounted in the suspension means and bears the compensation means the primary parts.
  • the first and second springs are mounted in end portions of the U-shaped cross brace.
  • the first spring carries the first primary parts and the second spring carries the second primary parts.
  • the drive 10 is held and braked via at least one brake element 8, 8 ', 9, 9' on the secondary part.
  • Fig. 1 is in each primary part 1, 1 ', 2, 2' a brake elements 8, 8 ', 9, 9' attached.
  • the brake elements are arranged in pairs on both sides of the secondary part.
  • Each brake element is connected via a brake lever 8.1 , 8.1 ', 9.1, 9.1' with the support means 4 .
  • Each of the brake levers has first and second brake lever ends. The first brake lever end is mounted on a shaft 13, 13 ', 14, 14' in the respective primary part, the second brake lever end is with connected to the support means. With these four brake elements is a uniformly distributed and stable braking of the drive along the secondary part.
  • the eccentric shafts 11, 11 ', 12, 12' can be rotated by means of at least one actuator 15, 15 ', 16, 16' in the plane XY about a control axis Z.
  • Each eccentric shaft is rotated by an actuator.
  • the actuators are electric motors which rotate the eccentric shafts back and forth by one setting angle.
  • the guide elements are in direct contact with the secondary part and the brake elements are without contact to the secondary part.
  • the brake elements are in direct contact with the secondary part.
  • the eccentric In the de-energized state of the actuators, the eccentric rotate automatically under the action of the attractive normal force back to the second end position until the brake elements rest on the abutment.
  • the braking function and the catching function of the drive takes place by friction on the secondary part.
  • the guide elements and the brake elements are linings, rollers, rollers, balls, etc., which consist of known materials such as metal, ceramic, hard rubber, etc.
  • rollers, rollers, balls for the guide elements they have a rolling friction on the secondary part.
  • pads for the brake elements they have a sliding friction on the secondary part.
  • actuators which are actuated not electrically but hydraulically or pneumatically or by means of a Bowden cable.
  • the eccentric shafts 11, 11 ', 12, 12' By turning the eccentric shafts 11, 11 ', 12, 12' back and forth, the primary parts 1, 1 ', 2, 2' are moved toward the secondary part 3 or moved away from the secondary part 3 .
  • the compensating means 5 is not affected by the back and forth of the eccentric waves.
  • the back and forth of the eccentric shafts is in Fig. 1 indicated by curved double arrows.
  • the width of air gaps between the primary parts and the secondary part is changed.
  • the width of the air gaps changes along a direction of action transverse to the direction of movement of the drive. In the first end position, where the guide elements cause the drive in contact with the secondary part, the width of the air gaps is maximum and the attractive normal force between the primary parts and the secondary part is small.
  • the width of the air gaps is minimal and the attractive normal force z between the primary parts and the secondary part is large.
  • the width of the air gaps is changed continuously, whereby the attractive normal force is continuously reduced or increased accordingly.
  • the attractive normal force is as small as possible in the first end position and in the second end position the pulling normal force is the greatest possible.
  • the second brake lever ends When rotating the eccentric shaft, the second brake lever ends form fixed points that do not change their distance to the secondary part 3 , while the first brake lever ends, which are mounted in the primary parts, change their distance to the secondary part.
  • Brake lever length 84 denotes the distance between the first and second brake lever ends.
  • Brake length 83 denotes the distance between the projection of the brake elements on the connecting end of the brake lever ends and the second brake lever end.
  • the brake elements are pressed with a lever against the secondary part. According to Fig. 1 the ratio of the lever is 2: 1. In the second end position, where the brake elements hold the drive in contact with the secondary part, the compensating normal force of the compensating means 5 acts as a braking force amplified by this lever.
  • the drive 10 has at least one catch trigger 4.5, 4.5 ' , which holds the compensation means 5 at least partially in the primary parts 1, 1, 2, 2' .
  • the catch trigger can be brought into two positions. In a normal operating position, the compensation means is activated and the catch trigger maintains the bias of the compensation means. In a catch position the compensation means is deactivated and the catch trigger has released the bias of the compensation means.
  • the compensating means consists of a spring 5.1 , which connects the primary parts 1, 1 ' and a spring 5.2, which the primary parts 2, 2' combines. Each spring is tensioned with at least one spring end of a catch trigger in a primary part.
  • the catch trigger has at least one support which holds the spring ends in the direction of action Y and pushes the primary parts away from the secondary part.
  • the deactivation of the catch trigger takes place in a known manner mechanically or electrically.
  • the catch trigger for deactivation is mechanically rotated about the adjusting axis Z.
  • the pad slips thereby laterally from the spring end and the spring relaxes accordingly.
  • the compensating normal force of the compensating means is removed, the attractive normal force of the primary parts comes into full effect and becomes correspondingly large due to the minimally wide air gaps.
  • the drive is then pressed only with the attractive normal force of the primary parts against the secondary part.
  • the brake elements brake by friction on the secondary part, which performs a catch function. With this catch function, a car or a counterweight is decelerated and held at an overspeed.
  • Fig. 3 to 5 show three schematic representations of embodiments of the elevator 100 , which is driven by the drive 10 .
  • the drive directly drives at least one cab 20 for moving persons or goods of the elevator.
  • the drive directly drives at least one counterweight 30 , wherein the car and counterweight are connected via at least one connecting means 40 .
  • the lanyard is a rope or belt with at least one load-bearing steel, aramid, etc. cable. Both the car and the counterweight are moved with a 2: 1 suspension.
  • the connecting means is deflected over a plurality of deflection rollers 41, 42, 43, 44 .
  • a first diverting pulley 41 is mounted on the counterweight, at least a second diverting pulley 42 is mounted in the wellhead and third and fourth diverting pulleys 43, 44 are mounted on the cabin.
  • Fig. 5 corresponds to Fig. 4 , with the difference that only the counterweight is 2: 1 umge gleich while the cabin is 1: 1 umgehormon. In this way, the counterweight is moved at half the speed of the car.
  • the secondary part 3 is at least one guide rail for the elevator.
  • the cab is moved as a backpack cabin with two drives along two guide rails, which guide rails extend over the entire length of a shaft in a building.
  • the counterweight is moved with a drive along a single guide rail, which extends a guide rail over the entire length of the shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Linear Motors (AREA)
  • Elevator Control (AREA)
  • Control Of Linear Motors (AREA)
EP04008042A 2003-04-14 2004-04-02 Antrieb mit Linearmotor, Aufzug mit diesem Antrieb und Verfahren zum Betrieb dieses Antriebs Expired - Lifetime EP1468950B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04008042A EP1468950B1 (de) 2003-04-14 2004-04-02 Antrieb mit Linearmotor, Aufzug mit diesem Antrieb und Verfahren zum Betrieb dieses Antriebs

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP03405257 2003-04-14
EP03405257 2003-04-14
EP04008042A EP1468950B1 (de) 2003-04-14 2004-04-02 Antrieb mit Linearmotor, Aufzug mit diesem Antrieb und Verfahren zum Betrieb dieses Antriebs

Publications (2)

Publication Number Publication Date
EP1468950A1 EP1468950A1 (de) 2004-10-20
EP1468950B1 true EP1468950B1 (de) 2008-05-14

Family

ID=33155285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04008042A Expired - Lifetime EP1468950B1 (de) 2003-04-14 2004-04-02 Antrieb mit Linearmotor, Aufzug mit diesem Antrieb und Verfahren zum Betrieb dieses Antriebs

Country Status (8)

Country Link
US (1) US7478706B2 (ja)
EP (1) EP1468950B1 (ja)
JP (1) JP4613027B2 (ja)
KR (1) KR101169621B1 (ja)
CN (1) CN1315713C (ja)
AT (1) ATE395294T1 (ja)
CA (1) CA2464150C (ja)
DE (1) DE502004007106D1 (ja)

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JP2005008414A (ja) * 2003-06-18 2005-01-13 Inventio Ag エレベーター設備、このエレベーター設備を操作する方法、およびエレベーター設備を最新化する方法
SG109535A1 (en) * 2003-08-14 2005-03-30 Inventio Ag Electric motor, lift with a cage movable by an electric motor, and lift with a cage and with an electric motor for movement of a guide element relative to the cage
NZ552308A (en) * 2006-02-08 2008-11-28 Inventio Ag Lift installation with a linear drive system and linear drive system for such a lift installation
DE102009048822A1 (de) * 2009-10-09 2011-04-14 Siemens Aktiengesellschaft Beförderungssystem mit elektromagnetischer Bremse
JP5664177B2 (ja) * 2010-11-29 2015-02-04 日立金属株式会社 リニアモータ及びリニア駆動ステージ
WO2013165422A1 (en) * 2012-05-03 2013-11-07 Otis Elevator Company An elevator system incorporating a traveling motor
DE202012006176U1 (de) * 2012-06-27 2013-10-01 Horst Becker x:1 Linearmotor
US9136749B1 (en) * 2012-09-28 2015-09-15 John M. Callier Elevator electrical power system
CN106132864B (zh) * 2014-03-14 2019-09-10 奥的斯电梯公司 用于确定无绳电梯系统中磁性部件的磁场取向的系统和方法
US10329123B2 (en) 2015-07-09 2019-06-25 Otis Elevator Company Vibration damper for elevator linear propulsion system
CN106487200B (zh) * 2015-08-25 2020-03-17 奥的斯电梯公司 具有无线电力传输系统的电磁推进系统
US10138091B2 (en) 2016-06-13 2018-11-27 Otis Elevator Company Variable linear motor gap
DE102016118028A1 (de) 2016-09-23 2018-03-29 Thyssenkrupp Ag Transporteinrichtung mit einer Sicherheitseinrichtung zur Verzögerungsbegrenzung
RU2718858C1 (ru) * 2019-07-22 2020-04-15 Сергей Анатольевич Брюханов Вертикальный магнитолевитационный транспортный путь
US11584621B2 (en) * 2020-07-30 2023-02-21 Otis Elevator Company Autonomous elevator car movers and traction surfaces therefor, configured with traction increasing and guidance enhancing implements
CN115402895A (zh) * 2021-05-28 2022-11-29 奥的斯电梯公司 抱闸监控电路系统、电梯系统以及抱闸监控方法

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NZ552308A (en) * 2006-02-08 2008-11-28 Inventio Ag Lift installation with a linear drive system and linear drive system for such a lift installation

Also Published As

Publication number Publication date
US7478706B2 (en) 2009-01-20
DE502004007106D1 (de) 2008-06-26
KR20040089576A (ko) 2004-10-21
ATE395294T1 (de) 2008-05-15
CA2464150A1 (en) 2004-10-14
JP4613027B2 (ja) 2011-01-12
CN1537800A (zh) 2004-10-20
CA2464150C (en) 2012-01-10
CN1315713C (zh) 2007-05-16
EP1468950A1 (de) 2004-10-20
KR101169621B1 (ko) 2012-07-30
JP2004357494A (ja) 2004-12-16
US20040216960A1 (en) 2004-11-04

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