EP0626335B1 - Ascenceur actionné par un moteur électrique linéaire et le rail-guide de cet ascenceur - Google Patents

Ascenceur actionné par un moteur électrique linéaire et le rail-guide de cet ascenceur Download PDF

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Publication number
EP0626335B1
EP0626335B1 EP94108142A EP94108142A EP0626335B1 EP 0626335 B1 EP0626335 B1 EP 0626335B1 EP 94108142 A EP94108142 A EP 94108142A EP 94108142 A EP94108142 A EP 94108142A EP 0626335 B1 EP0626335 B1 EP 0626335B1
Authority
EP
European Patent Office
Prior art keywords
guide rail
counterweight
elevator
reinforcements
shaft
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
EP94108142A
Other languages
German (de)
English (en)
Other versions
EP0626335A1 (fr
Inventor
Harri Hakala
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.)
Kone Corp
Original Assignee
Kone Corp
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Filing date
Publication date
Application filed by Kone Corp filed Critical Kone Corp
Publication of EP0626335A1 publication Critical patent/EP0626335A1/fr
Application granted granted Critical
Publication of EP0626335B1 publication Critical patent/EP0626335B1/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
    • B66B7/02—Guideways; Guides
    • B66B7/022—Guideways; Guides with a special shape
    • 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 present invention relates to a linear motor driven elevator according to the preamble of claim 1 and to a guide rail according to the preamble of claim 6.
  • linear motors have aroused great interest as elevator drive motors.
  • the driving power of the motor is converted into linear motion in the elevator shaft without a transmission, a rotating drive machinery or a gear system changing the speed.
  • the linear motor has been placed in the counterweight or the elevator car.
  • the control unit of the elevator motor as well as the power supply equipment can be placed completely in the elevator shaft or in the elevator car and counterweight moving in it.
  • the stationary secondary circuit of the motor In elevator drive applications using a linear motor, the stationary secondary circuit of the motor is normally mounted in the elevator shaft, extending through its whole length.
  • the movable primary circuit of the motor is placed in the counterweight or in the elevator car.
  • the secondary circuit In high-rise buildings, the secondary circuit has to be very long, constituting a considerable item of expenditure.
  • numerous solutions aiming at improving the perfomance of the magnetic circuit of the motor have been suggested.
  • Systems have also been proposed where the secondary circuit or part of the secondary circuit of the motor consists of the guide rails guiding the movement of the elevator car and counterweight in the elevator shaft.
  • Application publication DE 2 002 081 (B66B 11/04) presents a solution in which the guide rails of the elevator car or counterweight are utilized by generating a sinusoidal magnetic field in them by means of inductance coils placed in the counterweight or elevator car.
  • the guide rails are made of metal.
  • the secondary circuit of the motor must have optimal electrical properties and, on the other hand, as it acts as a guide rail, it has to be able to receive the forces applied to it.
  • the metals available do not have this combination of properties, which is why the performance of the elevator remains low.
  • Patent publication US 5 062 501 presents a linear motor driven elevator in which the counterweight guide rail is coated with a conducting layer which forms the secondary winding of the linear motor.
  • the forces applied to the guide rail are received by the rail body which is made of steel.
  • two metals having different characteristics, steel and aluminium have to be joined together to form a guide rail extending through the whole length of the shaft, involving high expenses and technical problems.
  • the object of the invention is to achieve a new linear motor which is economical to manufacture and install and meets the requirements applying to on an elevator drive.
  • the invention is characterized by the features presented in the characterization part of claim 1.
  • the guide rail of the invention is characterized by the features presented in the characterization part of claim 6.
  • an elevator car and its counterweight 5, connected together by a hoisting rope 6 or ropes, are installed in an elevator shaft 1 so that they can move in the vertical direction.
  • the hoisting ropes 6 run over a diverting pulley 7 mounted in the upper part of the shaft.
  • Mounted in the shaft are the guide rails 2 for the elevator car and counterweight.
  • the guide rails are fixed to the shaft walls or alternatively to guide rail supporters (not shown) mounted in the shaft.
  • Mounted in the counterweight in a manner known in itself are the iron components 8 forming the magnetic circuit of the primary part of the linear motor, as well as the primary winding, which is fitted in grooves provided in the iron components.
  • the hoisting ropes 6 are attached to the overhead beam 9 of the counterweight.
  • the guides 10 are either roller guides or sliding guides as is known in elevator technology.
  • the counterweight also comprises normal supporting structures and a weight forming a sufficient mass.
  • the counterweight guide rails 2 in addition to guiding the movement of the counterweight, also act as the secondary circuit of the linear motor.
  • the guide rails of the elevator car can be manufactured in the same way, in which case the linear motor is placed in the elevator car. In the following, the guide rail structures according to the invention are described by the aid of Fig. 2 - 3.
  • Fig. 2 presents a T-section guide rail consisting of a rail back or fixing part 21 formed by the cap of the T and a guiding part 22 formed by the shank of the T.
  • the guide rail is fixed by its back to the shaft wall by means of bolts fitted in holes 20.
  • the material of the back and the guiding part of the guide rail is mainly aluminium.
  • the guiding part is provided with reinforcements 23 having a length equal to that of the rail and consisting e.g. of steel strips placed on opposite sides 24 and 25 of the guiding part.
  • the reinforcements 23 are connected to each other at suitable distances by means of fasteners 26 going through the guiding part 22 of the guide rail.
  • the end 27 of the guiding part 22 is provided with a stop face for a lateral guide.
  • the aluminium surfaces of the guiding part 22 of the guide rail are provided with a coating 28 consisting of a slick material such as teflon.
  • the thrust of the sliding guide may be received by a coated portion of the rail.
  • the primary part 29 of the linear motor mounted in the counterweight moves in the direction of the rail, surrounding its guiding part 22 on both sides and on the side facing the central part of the shaft.
  • rollers 30 provided in the guides 10 an air gap of a certain width is maintained between the primary circuit 29 and the guiding part 22 of the guide rail forming the secondary circuit of the motor.
  • Fig. 3 illustrates another guide rail implemented according to the invention.
  • the guide rail is an H or I-profile rail which is fixed to the wall by one end 31 of the profile, which forms the fixing part.
  • the other end 32 of the guide rail profile constitutes the secondary circuit of the motor, the primary circuit 33 being fitted around it.
  • the primary circuit of the motor consists of two parts which can also be connected together.
  • Fitted on the sides 34 and 35 of the second end 32 are reinforcements 23, which are attached to each other by means of fasteners 26. Similar reinforcements are also mounted on both sides of the shank of the I profile.
  • the reinforcements 23 receive the thrust of the guide rollers 38 as in Fig. 2.
  • Fig. 4 presents an example of a structure used as a reinforcement, which is formed by punching holes 40 in a steel fillet.
  • the portions 44 remaining between the holes 40 form the fasteners while the portions 41 and 42 remaining on the sides of the fillet form the reinforcements.
  • the fillet is bent lengthwise to an angle of 90° along the edges 45 and 46 of the holes.
  • the edges of the fillet are further bent to form additional spurs 47 which in a finished guide rail are turned inwards.
  • the guide rail is formed e.g. by extruding aluminium around the framework formed by the steel fillet, producing a guide rail profile as illustrated in Fig. 2 and 3.
  • the reinforcements may be produced in numerous alternative ways and they may extend to the fixing part of the rail.
  • roller guides it is possible to use sliding guides mounted so that their thrust is received by the reinforcements or a coated portion of the guiding part of the guide rail.
  • the reinforcements or parts thereof are located at the surfaces of the guide rails in the runway of the rolling or sliding guides 10,30 so as to receive the thrust of the guides.
  • the reinforcements may be coated with a slick material such as teflon.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Linear Motors (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)

Claims (10)

  1. Ascenseur entraíné par un moteur linéaire, comprenant une cabine d'ascenseur et un contrepoids (5) qui se déplacent dans une cage (1) et sont suspendus à un câble de levage (6), et une poulie de renvoi (7) sur laquelle passe le câble de levage (6), le circuit primaire (8,29,33) du moteur linéaire de cet ascenseur étant monté dans le contrepoids (5) de sorte qu'il se déplace à une distance définie par un intervalle d'air par rapport au rail de guidage (2) du contrepoids (5), ledit rail de guidage constituant le circuit secondaire du moteur, étant fabriqué en un métal conducteur et s'étendent sensiblement sur toute la longueur de la cage (1), caractérisé en ce qu'au moins la partie de guidage du rail de guidage (2) est pourvue de renforts (23) comportant des fixations (26).
  2. Ascenseur suivant la revendication 1, caractérisé en ce que le rail de guidage (2) du contrepoids est un profilé en aluminium en forme de T qui est fixé par sa barre supérieure (21) à la paroi de la cage (1) et en ce que les renforts (23) sont placés dans la queue (22) du profilé en T.
  3. Ascenseur suivant la revendication 1, caractérisé en ce que le rail de guidage (2) du contrepoids est un profilé en aluminium en forme de I qui est fixé par sa première extrémité (31) à la paroi de la cage (1) et en ce que les renforts (23) sont placés dans l'autre extrémité (32) du profilé en I.
  4. Ascenseur suivant une quelconque des revendications 1 à 3, caractérisé en ce que la poussée des guidages de contrepoids (10,38) est reçue par les renforts (23) du rail de guidage.
  5. Ascenseur suivant une quelconque des revendications 1 à 4, caractérisé en ce que la partie du rail de guidage (2) constituée d'une matière conductrice est au moins partiellement revêtue d'une matière lubrifiante (28) et en ce que l'ascenseur comporte un guidage glissant dont la poussée est reçue par la partie revêtue du rail de guidage (2).
  6. Rail de guidage (2) pour guider le mouvement d'une cabine d'ascenseur ou d'un contrepoids dans une cage d'ascenseur, ledit rail de guidage étant attaché par sa partie de fixation (21,31) aux parois de la cage ou à d'autres structures de support et comportant une partie de guidage (22,32) qui s'étend dans le circuit primaire (8,29,33) d'un moteur linéaire monté dans le contrepoids (5) ou la cabine d'ascenseur et agit comme circuit secondaire du moteur, ledit rail de guidage (2) étant fabriqué en une matière conductrice, caractérisé en ce, qu'au moins la partie de guidage (22,32) est pourvue de renforts (23) attachés à la matière conductrice.
  7. Rail de guidage suivant la revendication 7, caractérisé en ce que le rail de guidage (2) est fabriqué par extrusion d'aluminium sous la forme d'un profilé en T (21,22), dans lequel la barre (21) constitue la partie de fixation tandis que la queue (22) constitue la partie de guidage.
  8. Rail de guidage suivant la revendication 7, caractérisé en ce que le rail de guidage (2) est fabriqué par extrusion d'aluminium sous la forme d'un profilé en I (31,32), dont la première extrémité (31) constitue la partie de fixation tandis que la deuxième extrémité (32) constitue la partie de guidage.
  9. Rail de guidage suivant une quelconque des revendications 6 à 8, caractérisé en ce que les renforts (23) consistent en des feuilles d'acier ayant une longueur sensiblement égale à celle du rail de guidage (2) et placées sur des côtés opposés du rail, et en ce que les feuilles (23) sont reliées l'une à l'autre au moyen d'attaches (26) traversant le rail.
  10. Rail de guidage suivant une quelconque des revendications 6 à 9, caractérisé en ce que la matière conductrice du rail de guidage (2) est pourvue d'un revêtement lubrifiant (28) tel que du téflon.
EP94108142A 1993-05-26 1994-05-26 Ascenceur actionné par un moteur électrique linéaire et le rail-guide de cet ascenceur Expired - Lifetime EP0626335B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI932415A FI92572C (fi) 1993-05-26 1993-05-26 Lineaarimoottorihissi ja sen johde
FI932415 1993-05-26

Publications (2)

Publication Number Publication Date
EP0626335A1 EP0626335A1 (fr) 1994-11-30
EP0626335B1 true EP0626335B1 (fr) 1998-08-26

Family

ID=8538014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94108142A Expired - Lifetime EP0626335B1 (fr) 1993-05-26 1994-05-26 Ascenceur actionné par un moteur électrique linéaire et le rail-guide de cet ascenceur

Country Status (6)

Country Link
EP (1) EP0626335B1 (fr)
JP (1) JP2907722B2 (fr)
AT (1) ATE170159T1 (fr)
DE (1) DE69412702T2 (fr)
ES (1) ES2121115T3 (fr)
FI (1) FI92572C (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4544679B2 (ja) * 2000-02-04 2010-09-15 東芝エレベータ株式会社 マシーンルームレスエレベータ装置
GB0309529D0 (en) * 2003-04-28 2003-06-04 Denne Phillip R M Improvements in electrical machines
CN102153008A (zh) * 2010-02-11 2011-08-17 河南理工大学 一种用于无绳电梯的直线电机布置方法
CN102190005B (zh) * 2010-03-09 2013-10-09 张发林 中间轨道及辅助装置运输系统
WO2011109928A1 (fr) * 2010-03-09 2011-09-15 Zhang Falin Système de transit doté d'une voie intermédiaire et de dispositifs auxiliaires
TW201326610A (zh) * 2012-12-27 2013-07-01 Ming-Jin Chen 螺桿單元及運用螺桿單元的升降裝置
WO2016123440A1 (fr) * 2015-01-29 2016-08-04 Otis Elevator Company Unité de guidage à propulsion mécaniquement intégrée
CN108483190B (zh) * 2018-03-29 2023-11-28 中国建筑股份有限公司 一种智能化铝合金模板传料装置及其操作方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4832210A (en) * 1988-02-16 1989-05-23 Wood Ii Donald M Boat lift
US5062501A (en) * 1989-03-03 1991-11-05 Otis Elevator Company Elevator with linear motor counterweight assembly

Also Published As

Publication number Publication date
ATE170159T1 (de) 1998-09-15
DE69412702D1 (de) 1998-10-01
JP2907722B2 (ja) 1999-06-21
EP0626335A1 (fr) 1994-11-30
DE69412702T2 (de) 1999-01-07
FI92572C (fi) 1994-12-12
JPH0753165A (ja) 1995-02-28
FI92572B (fi) 1994-08-31
FI932415A0 (fi) 1993-05-26
ES2121115T3 (es) 1998-11-16

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