EP0372576A1 - Structure d'appui pour un élévateur équipé d'un moteur linéaire - Google Patents

Structure d'appui pour un élévateur équipé d'un moteur linéaire Download PDF

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Publication number
EP0372576A1
EP0372576A1 EP89122702A EP89122702A EP0372576A1 EP 0372576 A1 EP0372576 A1 EP 0372576A1 EP 89122702 A EP89122702 A EP 89122702A EP 89122702 A EP89122702 A EP 89122702A EP 0372576 A1 EP0372576 A1 EP 0372576A1
Authority
EP
European Patent Office
Prior art keywords
stator
linear motor
elevator
column
support structure
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.)
Granted
Application number
EP89122702A
Other languages
German (de)
English (en)
Other versions
EP0372576B1 (fr
Inventor
Keiichiro Nakai
Manabu Suganuma
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.)
Atto Di Licenza otis SpA - Calzolari Ascensore
Original Assignee
Otis Elevator Co
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 Otis Elevator Co filed Critical Otis Elevator Co
Publication of EP0372576A1 publication Critical patent/EP0372576A1/fr
Application granted granted Critical
Publication of EP0372576B1 publication Critical patent/EP0372576B1/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
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
    • B66B11/0055—Arrangement of driving gear, e.g. location or support in the hoistway on the counterweight
    • 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

  • This type of elevator is so constituted as a machine room is provided above the lift, in which a traction machine is installed and thereon a rope is hung, on one end thereof a car and on the other end a counterweight are hung respectively.
  • this winch is relatively large and at the same time in the machine room are installed a brake apparatus and other control apparatus, so that the machine room needs a capacity therefor, especially in the building such as a mansion which needs a more living space, it is a big problem that the building is largely occupied by a machine room. Further, as the weight of the apparatuses settled in the machine room increases to some extent, the structure of the machine room has to be expensive due to the necessary strength.
  • an elevator having a linear motor as its power source has recently received footlights.
  • this linear motor has such a structure as the motor itself as well known in a linear direction, there is of no need of a motor which needs a traction machine or reduction device and the pulleys, to make the whole structure quite lightweighted.
  • a machine room for a traction machine is not necessary any more and a big advantage such that an elevator system as a whole is obtained.
  • one object of the present invention is to provide a structure of a linear motor driving elevator which is quite safely operated.
  • a structure for a linear motor type of functioning as a primary side or a secondary side of a linear motor and a moving element functioning as a secondary side or primary side to the stator one end of the stator being fastened to a building through the first support means constituted for allowing the vibration of the stator and the other end thereof being fastened to the building through the second support means to supply a pre-determined tension to the stator and to absorb the vibration acted on the stator.
  • a linear motor is supported by one end of the stator which functions as a primary side or a secondary side of the linear motor and is fastened to a hoist way of the lift mounted on a building, being fastened to a upper support channel mounted above the hoist way through a revolving, coupling member allowing the stator to rotate within a certain range, and the other end thereof being fastened to the floor as a base of the hoist way through a support member consisting of a tension supplying means which allows the stator to swing within a certain range and supplies a pre­determined tension to the stator. Accordingly, if the displacement of the stator is allowed by the movement of the coupling means and by the tension supply means the vibration etc is reduced and absorbed, so that the stator is protected from the breakage.
  • Fig. 1 is a schematic diagram of a linear motor drive type of elevator according to the present invention, especially as to cylindrical linear motor, it is described as follows.
  • a cylindrical linear motor consists of a cylindrical moving element 1 and a column 10 as a stator.
  • This cylindrical moving element 1 functions as a primary side, on both sides of which are provided with counterweights 2, and those two are installed in the casing consisting of a channel member to form as a whole a counterweight 3 for a car 4.
  • This counterweight 3 is usually set in its weight as 1.5 times of the car 4.
  • the car 4 and the counterweight 3 are connected by four ropes 6 through four sheaves 5 provided above.
  • both of the car and the counterweight have a guide rail 8 on both sides thereof respectively, and those are constituted as going up and down on the rail via slide members 9.
  • the column 10 of the stator side is made of aluminum alloy, which goes through the cylindrical moving element 1 at the middle portion between the guide rails for the counterweights and the lower end portion of which is fastened through a support member 14 to the lower support portion consisting of a support frame 11 provided on the lower portion of the guide rails 8 and the upper end portion of which is fastened through a support member 13 to the upper support portion consisting of a support channel 12.
  • the desired length of column 10 in a elevator of 600 kg loading capacity is obtained practically by connecting a plurality of columns having 1,500 mm in length and 100 mm in diameter.
  • a pre­determined gap has to be provided between the primary side and the secondary side, and in order to maintain the gap the linear motor of the present invention is supported by the rollers 15 provided on both upper side and lower side of the motor by 4 pieces each. Further, considering the change of this gap due to the vibration , the shock to the linear motor or the wearing of the rollers 15, gap sensors 16 are provided on the upper and lower portions of the casing frame 17. Moreover, in Fig. 1, a linear motor is provided as being installed in the counterweight, on the other hand it is also possible to install the linear motor in the car to go up and down.
  • FIG. 2 shows the structure of the lower support member 14 provided on the column 10.
  • the column is made of aluminum alloy, and the total length is adjusted by connecting the extension 100 on one end thereof.
  • a ball joint 105 as a coupling means having an eyebolt 101.
  • an eyebolt 102 is fastened to the support frame 11 joined to the lower ends of guide rails at both sides of the linear motor, and the column 10 is kept vertical by connecting the eyebolts 101 and 102 with the coil spring 103 and turnbuckle 104, both of which have the hooks on both ends thereof respectively.
  • This turnbuckle 104 is well known, which can add a specific tension to the column 10 by regulating the distance between the spring and the joint. Further, the provision of the turnbuckle 104 causes an easy regulation of the tension to the colum 10 and easy assembly of the spring 103.
  • the ball joint 105 has a structure that it holds a ball by a pair of yokes 106 which are connected to the the eyebolt 101 and the ball is kept therein by a pin penetrating the pair of yokes and the ball.
  • the end of column has a shaft 107 having a ring which accepts the ball. Accordingly, due to this construction, the yoke portion can rotate approximately 36° Around the pin, further, in the plane perpendicular to the above rotating plane, it can rotate within a certain angles. These structures may allow the column itself to vibrate within a certain angles.
  • Fig. 3 shows a structure of the upper support member 13 of the column 10.
  • the support structure has merely a ball joint 110. This ball joint can also rotate within a certain range, and function to allow the displacement of the column due to the vibration with the lower support member.
  • the structure consisting of a ball joint and coil spring without a turnbuckle is enough for effecting the functions thereof.
  • Fig. 4 shows how to connect the column 10. This column 10 obtains its desired length, as mentioned above, by connecting a plurality of columns molded integrally.
  • a connecting member 200 shown in Fig. 5 is used.
  • This connecting member 200 has the structure machined integrally by a lathe with a flange 201 formed in the middle portion of it and both ends thereof being threaded 202.
  • the end portions of the column to be connected are reeled and a female screw is threaded therein so as to receive the flange 201.
  • Figs 6 and 7 show a gap sensing system to detect the abnormality of the distance between the column and the moving element of the linear motor.
  • the support mechanism consists of the rollers 15.
  • the gap sensors 16 are provided on both of the upper and lower sides of the linear motor.
  • This gap sensor system consists of a hollow casing 300, a conductive strip 301, a conductive strip fastening screw 302, a regulator screw 303 and a detecting circuit 310.
  • One end of the conductive strip 301 is fastened to the inner side of the casing 300 by a fastening screw 302 and the other end thereof sets a change of the allowable gap between the column 10 and the moving element 1 of the linear motor through a regulator screw 303.
  • the fastening screw 302 and the column 10 are connected to a DC source through a lead wire 304 respectively.
  • the conductive strip 301 is preferably installed at each of 4 positions of the quarter inner circumference of the casing 300, but it may be at 3 positions or a plurality of positions over 5.
  • this conductive strip does not limit to the shape of strip, but it may be changed to the ring shape.
  • the detecting circuit 310 has a structure as shown in Fig. 7.
  • the conductive strip 301 of the gap sensor 16 provided on both of the upper and lower sides of the linear motor touches the surface of the column, by which a relay coils X1 and X2 are energized and the contacts of Y1 and Y2 which are normally open are closed. Because those relay coils and the contacts constitute a self holding circuit, the warning lamps I1 and I2 continue to light.
  • a safety means may be provided, which reads the signal generated when the conductive strip 301 contacts the column 10 and operates the brake apparatus to stop the car 4.
  • a support structure for a cylindrical type of linear motor particularly a support structure of the column of the stator side is described, but the structure according to the present invention is not limited to the application to the cylindrical type of linear motor; but it is sufficiently applicable for instance to a support structure of a conductive plate of a plate type of linear motor.
  • the stator functioning as a primary side or a secondary side of a linear motor is provided on a building by being mounted on a hoist way of a elevator through a coupling members allowing relative movement provided on the upper and the lower portions of the stator, even if a shock or vibration was acted on the stator, the movement of the stator itself is appropriately allowed, particularly the vibration etc is reduced or absorbed by the spring provided on the lower portion of the stator to protect the stator effectively from the damages such as breaking.

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)
EP19890122702 1988-12-09 1989-12-08 Structure d'appui pour un élévateur équipé d'un moteur linéaire Expired - Lifetime EP0372576B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP311539/88 1988-12-09
JP63311539A JPH0825702B2 (ja) 1988-12-09 1988-12-09 エレベータ用ガイドレールの支持構造

Publications (2)

Publication Number Publication Date
EP0372576A1 true EP0372576A1 (fr) 1990-06-13
EP0372576B1 EP0372576B1 (fr) 1995-03-22

Family

ID=18018453

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890122702 Expired - Lifetime EP0372576B1 (fr) 1988-12-09 1989-12-08 Structure d'appui pour un élévateur équipé d'un moteur linéaire

Country Status (6)

Country Link
EP (1) EP0372576B1 (fr)
JP (1) JPH0825702B2 (fr)
DE (1) DE68921853T2 (fr)
ES (1) ES2072886T3 (fr)
FI (1) FI895865A0 (fr)
HK (1) HK83495A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666702A1 (fr) * 1990-09-10 1992-03-13 Shinko Metal Prod Colonne metallique plaquee pour moteur lineaire et procede pour sa fabrication.
AU631760B2 (en) * 1989-02-28 1992-12-03 Otis Elevator Company Apparatus for maintaining an air gap in a toroidal linear motor
US5476159A (en) * 1993-08-06 1995-12-19 Lg Industrial Systems Co., Ltd. Linear motor supporting apparatus for linear motor elevator
KR20190048080A (ko) * 2017-10-30 2019-05-09 한국기계연구원 정비지원용 저진동 스마트 카트

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2603889B2 (ja) * 1991-12-04 1997-04-23 三菱電機株式会社 リニアモータ駆動方式のエレベータのガイドレール
JP4577333B2 (ja) * 2007-07-09 2010-11-10 株式会社日立製作所 トラクションエレベーター
DE102010042144A1 (de) * 2010-10-07 2012-04-12 Thyssenkrupp Transrapid Gmbh Aufzuganlage
JP5858751B2 (ja) * 2011-11-28 2016-02-10 東芝エレベータ株式会社 エレベータのガイドレール支持構造
CN103953145A (zh) * 2014-04-21 2014-07-30 苏州市时代工程咨询设计管理有限公司 一种半框式观光电梯全景玻璃幕墙系统
JP6222864B1 (ja) * 2016-05-25 2017-11-01 東芝エレベータ株式会社 エレベータのバッファ装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641832A (en) * 1969-03-26 1972-02-15 Hitachi Ltd A worm-gear-type speed reduction device for an elevator
US4012654A (en) * 1971-12-24 1977-03-15 Bbc Brown Boveri & Company Limited Single-phase synchronous machine
EP0048847A1 (fr) * 1980-09-30 1982-04-07 Otis Elevator Company Ascenseur auto-propulsé utilisant un moteur électrique linéaire comme contrepoids
DE3422374A1 (de) * 1984-06-15 1985-12-19 Kurt-Erich 8000 München Heidenreich Aufzug
US4570753A (en) * 1982-10-04 1986-02-18 Mitsubishi Denki Kabushiki Kaisha Elevator hoisting device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62175394A (ja) * 1986-01-29 1987-08-01 フジテツク株式会社 エレベ−タのガイドレ−ル支持装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641832A (en) * 1969-03-26 1972-02-15 Hitachi Ltd A worm-gear-type speed reduction device for an elevator
US4012654A (en) * 1971-12-24 1977-03-15 Bbc Brown Boveri & Company Limited Single-phase synchronous machine
EP0048847A1 (fr) * 1980-09-30 1982-04-07 Otis Elevator Company Ascenseur auto-propulsé utilisant un moteur électrique linéaire comme contrepoids
US4570753A (en) * 1982-10-04 1986-02-18 Mitsubishi Denki Kabushiki Kaisha Elevator hoisting device
DE3422374A1 (de) * 1984-06-15 1985-12-19 Kurt-Erich 8000 München Heidenreich Aufzug

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU631760B2 (en) * 1989-02-28 1992-12-03 Otis Elevator Company Apparatus for maintaining an air gap in a toroidal linear motor
FR2666702A1 (fr) * 1990-09-10 1992-03-13 Shinko Metal Prod Colonne metallique plaquee pour moteur lineaire et procede pour sa fabrication.
US5476159A (en) * 1993-08-06 1995-12-19 Lg Industrial Systems Co., Ltd. Linear motor supporting apparatus for linear motor elevator
CN1037256C (zh) * 1993-08-06 1998-02-04 Lg产电株式会社 用于线性电机电梯的线性电机支撑装置
KR20190048080A (ko) * 2017-10-30 2019-05-09 한국기계연구원 정비지원용 저진동 스마트 카트

Also Published As

Publication number Publication date
EP0372576B1 (fr) 1995-03-22
JPH02158586A (ja) 1990-06-19
JPH0825702B2 (ja) 1996-03-13
HK83495A (en) 1995-06-01
ES2072886T3 (es) 1995-08-01
FI895865A0 (fi) 1989-12-08
DE68921853D1 (de) 1995-04-27
DE68921853T2 (de) 1995-09-07

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