EP1478591B1 - Dispositif de mesure de la charge d'un ascenseur - Google Patents

Dispositif de mesure de la charge d'un ascenseur Download PDF

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Publication number
EP1478591B1
EP1478591B1 EP02706477A EP02706477A EP1478591B1 EP 1478591 B1 EP1478591 B1 EP 1478591B1 EP 02706477 A EP02706477 A EP 02706477A EP 02706477 A EP02706477 A EP 02706477A EP 1478591 B1 EP1478591 B1 EP 1478591B1
Authority
EP
European Patent Office
Prior art keywords
load
elevator system
mounting plate
load cell
elevator
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
EP02706477A
Other languages
German (de)
English (en)
Other versions
EP1478591A4 (fr
EP1478591A1 (fr
Inventor
Dale Barrett
Nizar Dassouki
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.)
Otis Elevator Co
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 EP1478591A1 publication Critical patent/EP1478591A1/fr
Publication of EP1478591A4 publication Critical patent/EP1478591A4/fr
Application granted granted Critical
Publication of EP1478591B1 publication Critical patent/EP1478591B1/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
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3476—Load weighing or car passenger counting devices
    • B66B1/3484—Load weighing or car passenger counting devices using load cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/14—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads

Definitions

  • This invention relates to an elevator system comprising a load measuring device according to the pre-characterizing portion of claim 1, such a system is disclosed by the Japanese patent application JP 03 098975A .
  • U.S. Patent 6,021,873 describes a load measurement device located at the dead end hitch.
  • the tension member terminations are mounted to a bracket, which is in turn mounted to a plate.
  • the plate is attached to a guiderail to fix the tension members relative to the hoistway.
  • An edge flange is attached to the plate opposite the guiderails and a strain gauge is attached to the flange.
  • the load exerted by the car suspended by the tension members is transmitted by the plate to the edge flange which is designed such that the force applied to the edge plate by the hoisting ropes causes a large deformation in the edge flange.
  • the strain in the edge flange is measured by the strain gauge.
  • Japanese patent application 6-255933 describes a load measuring device located at the dead end hitch.
  • the rope terminations pass through a lower plate fixed to a hoistway beam.
  • the rope terminations are fixed to an upper plate, which is pivotally fixed to the lower plate.
  • a load cell is positioned between the upper and lower plates. The load of the car is transmitted through the tension members, to the rope terminations, to the upper plate, forcing it to rotate toward the lower plate thus exerting a force on the load cell proportional to the weight of the car.
  • the prior art load measurement systems require not only mounting structure but also provisions for transferring the load from the mounting structure to the load measuring device.
  • the object of the invention is to provide an elevator system in which the load received by a tension member can be accurrately detected.
  • a solution of the above stated problem is achieved by an elevator system having the features of claim 1.
  • a self-aligning washer is fitted between the end of the spring and the load cell. This maintains the tension member in a position normal to the load cell to distribute the load evenly across the load cell.
  • Fig. 1 is a schematic of an elevator installation according to the present invention.
  • Fig. 2 is a plan view of a load weighing apparatus according to the present invention
  • Fig. 3 is a plan view of the spherical washer.
  • an elevator system 10 includes a load measuring device 12 as shown in Figure 1 .
  • the elevator system includes 10 an elevator car 14, which is positioned within a hoistway 16 by a machine 18.
  • the machine 18 is shown at the top of the hoistway 16 mounted on a machine beam 20.
  • the exact location of the machine 18 is not critical to the operation of the load weighing device 12.
  • the car is guided within the hoistway on guide rails 22.
  • a counterweight 24 serves to balance the load of the elevator car 14.
  • the counterweight is guided within the hoistway on a second set of guide rails 26.
  • Tension members 28 suspend the counterweight 24 and car 14.
  • the tension members 28 are driven by the machine 18, which in turn controls the position of the car 14 and counterweight 24.
  • the tension members 28 may consist of multiple ropes or flat belts.
  • the tension members 28 are usually fixed at a first 30 and second 32 end.
  • An anchorage 34 incorporating the load measuring device 12 is shown in Fig. 2 .
  • the tension members 28 are attached to terminations 36.
  • the terminations 36 include a rod 38 having a threaded end 40. The rod extends through a mounting plate 42.
  • the mounting plate 42 is designed for minimal deflection and may be fixed to a guiderail 22, machine beam 20, the wall of the hoistway, or any other structure suitable to support the weight of the car 14. In the alternative the mounting plate 42 may be eliminated and the terminations attached directly to the machine beam 20 or other suitable structure.
  • a spring or buffer 44 over the rod 38.
  • the spring 44 is held in place between the upper surface 46 of the mounting plate 42 and a washer 48 by a first nut 50, a lock nut 52 and cotter pin 54.
  • a load cell 56 is located between spring 44 and the upper surface 46 of the mounting plate 42.
  • a washer 58 is fitted between the load cell 56 and the spring 44 to evenly distribute the load over the load cell 56.
  • the load cell 56 has an annular shape defining a hole through which the rod 38 passes.
  • each tension member 28 A portion of the weight of the car 14, and its contents is borne by each tension member 28. This portion of the weight is sensed by the corresponding load cell 56, which is compressed between the spring 44 and upper surface 46 in proportion to the load.
  • the load cell 56 is conventional consisting of a bonded foil stranded and full bridge (not shown), which produces an electrical signal proportional to the load.
  • the signal from each load cell 56 is summed together to obtain the total load.
  • the signals may also be analyzed individually to determine the portion of the load carried by each tension member.
  • the springs 44 may be adjusted by either tightening or loosening the nuts 50 and 52 to equalize the load carried by each tension member 28.
  • the load in each tension member 28 individually, any stretching of degradation of the tension members 28 can also be sensed as the loads carried by each tension member 28 varies over time.
  • a spherical washer 60 which consists of an upper portion 62a and a lower portion 62b.
  • the upper portion has a flat upper surface 64a which interfaces with the spring 44 and convex lower surface 64b which interfaces with a concave upper surface 66a of the lower portion 62b.
  • the lower portion 62b has a flat lower surface 66b which interfaces with the upper surface 46 of the mounting plate 42.
  • the interaction of the convex lower surface 64a and the concave upper surface 66b distributes the load evenly over the load cell 56. Even distribution of the load minimizes any errors that can occur detecting the load applied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Elevator Control (AREA)

Claims (8)

  1. Système élévateur comportant un ascenseur qui comprend une cabine (14) suspendue à au moins un élément de tension (28) dans une cage d'ascenseur (16), une terminaison (36) à une extrémité (32) dudit élément de tension (28) et un dispositif de mesure de charge (12) pour mesurer la charge de la cabine (14), dans lequel ledit dispositif de mesure de charge (12) comporte : une plaque de montage (42) fixée à une structure dudit système élévateur permettant de supporter le poids de la cage (14), ladite terminaison (28) étant fixée à ladite plaque de montage (42) au moyen d'un chevalet d'arrimage associé (38, 44, 50, 52, 58, 60), dans lequel le dispositif de mesure de charge (12) comporte en outre au moins un capteur à jauge (56), ledit capteur à jauge (56) étant positionné entre ledit chevalet d'arrimage associé (38, 44, 50, 52, 58, 60) et ladite plaque de montage (42), ledit capteur à jauge (56) étant adapté pour générer un signal proportionnel à la charge sur ledit élément de tension (28),
    caractérisé en ce que ledit capteur à jauge (56) a une surface inférieure plane (66b) formant un interface avec une surface supérieure (46) de ladite plaque de montage (42) et une surface convexe ou concave (66a) formant un interface avec une surface inférieure correspondante (64b) d'une rondelle à auto alignement (60) faisant partie dudit chevalet d'arrimage associé et comportant l'autre surface convexe ou concave correspondante pour maintenir ledit chevalet dans une position normale par rapport audit capteur à jauge.
  2. Système élévateur selon la revendication 1, dans lequel ledit capteur à jauge (56) a une forme annulaire.
  3. Système élévateur selon la revendication 1 ou 2, dans lequel ledit capteur à jauge (56) comporte un trou pour permettre à une terminaison associée (36) de passer à travers.
  4. Système élévateur selon l'une des revendications 1 à 3, dans lequel ladite rondelle à auto alignement (60) a une forme sphérique.
  5. Système élévateur selon l'une des revendications 1 à 4, dans lequel la cabine (14) est adaptée pour se déplacer le long d'un rail de guidage (22) positionné dans la cage (16) et dans lequel la plaque de montage (42) est fixée au rail de guidage (22).
  6. Système élévateur selon l'une des revendications 1 à 5, comportant en outre une poutre (20) disposée au sommet de la cage (16) et dans lequel la plaque de montage (42) est fixée à la poutre (20).
  7. Système élévateur selon la revendication 6, dans lequel la terminaison (36) est fixé à la poutre (20).
  8. Système élévateur selon l'une des revendications 1 à 7, dans lequel la cage d'ascenseur (16) est définie par un puits et la plaque de montage (42) est fixé au puits d'ascenseur.
EP02706477A 2002-02-28 2002-02-28 Dispositif de mesure de la charge d'un ascenseur Expired - Lifetime EP1478591B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2002/006216 WO2003074406A1 (fr) 2002-02-28 2002-02-28 Dispositif de mesure de la charge d'un ascenseur

Publications (3)

Publication Number Publication Date
EP1478591A1 EP1478591A1 (fr) 2004-11-24
EP1478591A4 EP1478591A4 (fr) 2008-09-03
EP1478591B1 true EP1478591B1 (fr) 2009-12-09

Family

ID=27787369

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02706477A Expired - Lifetime EP1478591B1 (fr) 2002-02-28 2002-02-28 Dispositif de mesure de la charge d'un ascenseur

Country Status (9)

Country Link
EP (1) EP1478591B1 (fr)
JP (1) JP4102760B2 (fr)
KR (1) KR100872220B1 (fr)
CN (1) CN100366519C (fr)
AU (1) AU2002240562A1 (fr)
DE (1) DE60234718D1 (fr)
ES (1) ES2337659T3 (fr)
HK (1) HK1076790A1 (fr)
WO (1) WO2003074406A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2249169B1 (es) * 2004-09-02 2007-03-16 Dinacell Electronica, S.L. Celula de carga para ascensores y similares.
WO2006033160A1 (fr) * 2004-09-24 2006-03-30 Mitsubishi Denki Kabushiki Kaisha Ascenseur sans salle des machines
JP4929785B2 (ja) * 2006-03-28 2012-05-09 三菱電機株式会社 エレベータの制御ケーブル装置
CN102765648B (zh) * 2011-05-05 2014-10-22 上海三菱电梯有限公司 电梯悬挂绳张力测量及调整装置
CN103072872A (zh) * 2011-10-25 2013-05-01 康力电梯股份有限公司 一种绳头挂板装置
CN103708320B (zh) * 2012-10-08 2015-10-07 上海力夏检测技术有限公司 一种便携的多绳提升系统绳索张力均衡仪
CN102910514B (zh) * 2012-11-01 2015-03-04 日立电梯（中国）有限公司 一种电梯轿厢称重系统及称重方法
JP6170810B2 (ja) * 2013-10-29 2017-07-26 株式会社日立ビルシステム エレベータの主ロープテンション計測装置及びエレベータ制御システム
ES2600869B1 (es) * 2015-07-10 2018-01-09 Dinacell Electrónica S.L. Célula de carga
ES1143983Y (es) * 2015-09-01 2015-12-16 Lift Sensor S L Dispositivo de control de la tension de cables
CN105752781B (zh) * 2015-12-15 2018-06-22 上海长江斯迈普电梯有限公司 电梯智能称重装置及控制方法
EP3210924A1 (fr) 2016-02-23 2017-08-30 Inventio AG Ensemble de connexion d'ascenseur avec jauge de contrainte
US11111106B2 (en) * 2017-05-26 2021-09-07 Tim Ebeling Suspension member equalization system for elevators
US10618772B2 (en) * 2017-06-20 2020-04-14 Otis Elevator Company Elevator termination assembly that provides an indication of elevator car load
CN109250597A (zh) * 2018-11-06 2019-01-22 广州绰立科技有限公司 电梯轿厢载重装置矫正方法
CN110342364A (zh) * 2019-07-26 2019-10-18 大连凯晟科技发展有限公司 一种电梯超载装置测试仪

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4793442A (en) * 1987-11-05 1988-12-27 Schindler Elevator Corporation Method and apparatus for providing pre-travel balancing energy to an elevator drive
JPH028176A (ja) * 1988-06-24 1990-01-11 Mitsubishi Electric Corp エレベーターの荷重検出装置
JPH0398975A (ja) * 1989-09-11 1991-04-24 Mitsubishi Electric Corp エレベータの秤装置
JP3300061B2 (ja) * 1991-11-15 2002-07-08 オーチス エレベータ カンパニー エレベータ車両の負荷計測用組立体
JPH06255933A (ja) * 1993-03-03 1994-09-13 Otis Elevator Co エレベーターの過荷重検出装置
US5421422A (en) * 1993-11-19 1995-06-06 Boretec Inc Roller cutter mount for tunneling machine
US6123176A (en) * 1996-05-28 2000-09-26 Otis Elevator Company Rope tension monitoring assembly and method
FI107249B (fi) * 1996-12-20 2001-06-29 Kone Corp Menetelmä ja laitteisto hissin kuorman mittaamiseksi
JP2000086114A (ja) 1998-09-14 2000-03-28 Toshiba Corp エレベータ装置
KR100319936B1 (ko) * 1999-03-04 2002-01-09 장병우 엘리베이터 카의 진동 저감장치
US6341669B1 (en) * 2000-06-21 2002-01-29 Otis Elevator Company Pivoting termination for elevator rope

Also Published As

Publication number Publication date
KR20040084907A (ko) 2004-10-06
EP1478591A4 (fr) 2008-09-03
DE60234718D1 (de) 2010-01-21
HK1076790A1 (en) 2006-01-27
JP4102760B2 (ja) 2008-06-18
CN1622914A (zh) 2005-06-01
KR100872220B1 (ko) 2008-12-05
JP2005519009A (ja) 2005-06-30
AU2002240562A1 (en) 2003-09-16
EP1478591A1 (fr) 2004-11-24
ES2337659T3 (es) 2010-04-28
WO2003074406A1 (fr) 2003-09-12
CN100366519C (zh) 2008-02-06

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