EP2303749B1 - Procédé et dispositif pour déterminer l état d usure nécessitant le remplacement d un moyen porteur d un ascenseur - Google Patents

Procédé et dispositif pour déterminer l état d usure nécessitant le remplacement d un moyen porteur d un ascenseur Download PDF

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Publication number
EP2303749B1
EP2303749B1 EP09797506A EP09797506A EP2303749B1 EP 2303749 B1 EP2303749 B1 EP 2303749B1 EP 09797506 A EP09797506 A EP 09797506A EP 09797506 A EP09797506 A EP 09797506A EP 2303749 B1 EP2303749 B1 EP 2303749B1
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Prior art keywords
bending
case
usage level
portions
determining
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EP09797506A
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German (de)
English (en)
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EP2303749A1 (fr
Inventor
Herbert Bachmann
Tobias Noseda
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Inventio AG
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Inventio AG
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Priority to EP12197675.7A priority Critical patent/EP2592035B1/fr
Priority to EP09797506A priority patent/EP2303749B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
    • B66B7/1207—Checking means
    • B66B7/1215—Checking means specially adapted for ropes or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
    • B66B7/1207—Checking means
    • B66B7/1215—Checking means specially adapted for ropes or cables
    • B66B7/1238—Checking means specially adapted for ropes or cables by optical techniques

Definitions

  • the invention relates to a method and a device for determining the Ablegereife a support means of a lift.
  • the discard condition is determined by counting the number of wire breaks or by magnetically monitoring the suspension element.
  • these methods are not suitable or only conditionally for aramid ropes as suspension means.
  • the car call signals are detected and used to calculate the travel times that the car needs to travel from the call floors to the destination floors. Subsequently, the calculated travel times are compared with wear values in order to determine the manhole section in which the car moves most frequently. Based on this finding, the wear of the corresponding cable section is now examined.
  • this embodiment has the following disadvantage. Due to the fact that the travel time depends not only on the slip, but additionally on some other parameters, such as the load in the cabin, you can conclude by the detection of driving time only relatively inaccurate on the prevailing slip. If the travel time is prolonged, this can have different causes. Greater slippage is just one of several possible causes.
  • An object of the invention is to provide a method and a device for determining the Ablegereife a support means of a lift, with the Ablegereife the support means is particularly precisely determined.
  • the suspension element is divided into several sections. For each of the sections, it is determined whether the section passes the traction sheave and / or one or more of the pulleys during a trip, and if so, a degree of maturity representing the discard period is increased accordingly.
  • the inventive device for determining the Ablegereife comprises in addition to the above-mentioned features a controller for controlling the elevator and an evaluation unit which is connected to the controller.
  • the evaluation unit is designed and operable such that it determines the degree of ripeness for each of the sections on the basis of the data received by the controller about the travel destinations.
  • the type of bending is determined and in the case of sections Determination of the degree of maturity considered. This is particularly advantageous in the case of counterbends because they allow the suspension element to be particularly heavily worn.
  • a backbend in the determination of the degree of ripeness is taken into account more than a simple bending.
  • the wrap angle is taken into account in the section-wise determination of the degree of ripeness.
  • the determination of the Ablegereife can be made even more precise.
  • the diameter of the deflection rollers is taken into account in the section-wise determination of the degree of ripeness. This also allows the determination of the Ablegereife made even more precise.
  • a service message is generated when the maturity level for one of the sections has exceeded a certain value. In this way it is possible to dispense with regular manual checks of the maturity level of the discardability determined by the method.
  • the support means is additionally monitored by an optical control device.
  • a suspension element for example an aramid rope
  • corresponding tests are carried out in advance and empirical values are used.
  • the arrangement of the traction sheave, the deflection rollers, the cable guide, the wrap angle, the traction sheave and the Umlenkrollen pressmesser have an impact on the stability or the wear.
  • the knowledge gained from this leads to a bending cycle number that indicates the maximum number of bending cycles that are permitted before the suspension element is ready for disposal.
  • the bending cycle number is also referred to below as the limit bending cycle number. The more often the suspension element is bent, the greater is its wear.
  • the permissible number of bending cycles of that support means section which is the most stressed plays a special role. As long as the bending cycle number of the most heavily loaded support means section is not exceeded, the support means need not be replaced.
  • rollers In the embodiments of the invention described herein, all types of rollers are referred to as pulleys.
  • deflection rollers should fall under the term deflection rollers.
  • FIG. 1 a simplified representation of an elevator with a 1: 1 suspension is shown.
  • a cabin 8 is connected to a counterweight 9 via a suspension element 5, which is also referred to below as a suspension cable or shortly as a cable.
  • the support means 5 may also be a belt or belt and is guided over a traction sheave 20.
  • the suspension element 5 is driven via the traction sheave 20, which is coupled to a drive, not shown.
  • the cable section Ai is located, as in FIG FIG. 1 shown left below the traction sheave 20.
  • the cable section Ai carries in this position the reference numeral Ai (t0).
  • the cabin 8 is located on the floor 11 and the cable section Ai is now partially on the traction sheave 20.
  • the cable section Ai carries in this position the reference numeral Ai (t1).
  • the control of the elevator by means of an elevator control 31.
  • the determination of the Ablegereife the support means 5 by means of an evaluation unit 32, which is connected to the elevator control 31.
  • the support means 5 is first divided into as many sections Ai as there are floors. Then each floor is assigned that portion of the suspension element which lies on the traction sheave 20 when the cabin 8 is in the corresponding floor. Thus, for example, that support means section which on the traction sheave 20 when the car is on the floor 12, the section number A12 is assigned.
  • each floor or the corresponding support means section is assigned a memory in which each entrance to the floor, each exit from the floor in the opposite direction and each passage of the corresponding floor is counted.
  • FIG. 2 this is shown graphically.
  • the shaft On the left is the shaft with a total of 25 floors (-2 to 22) shown, right next to a symbolic representation of a first drive 1 of the cabin from the floor 0 to the floor 8.
  • the corresponding memory is shown, which also referred to as Biege CallInstituter becomes.
  • the memory comprises as many memory locations as the building floors has less than one, that is to say in the present exemplary embodiment a total of 24 memory locations SP1 to SP24 for a total of 24 cable sections A1 to A24.
  • the first cable section A1 is located at the counterweight 9 and the 24th cable section A24 is located at the car 8.
  • the cabin 8 moves from the floor 0 to the floor 8 during the drive 1.
  • the evaluation unit 32 receives the floor information (call information) from the elevator control 31 and then increases the contents the corresponding eight memory locations SP3 to SP10 by the value one.
  • the car 8 moves from the floor 8 by three floors further up to the floor 11.
  • the cable sections A11 to A13 are moved over the traction sheave 20 and thereby subjected to a bend. Therefore, the values in the next three memory locations SP11, SP12 and SP 13 are also increased by one.
  • the cabin moves from floor 11 down to floor -1.
  • the values in the corresponding memory locations SP13 to SP2 are again increased by the value one.
  • the car moves up to the floor 3 during travel 4, so that the values in corresponding memory locations SP2 to SP5 are again increased by the value one.
  • ripeness R (A1) to R (AN) The largest value in the bending change memory corresponds to the maximum number of bending cycles of the elevator installation. As can be seen, a total of three memory locations SP3, SP4 and SP5 are assigned the value 3. This means that during the four journeys the three support means sections A3, A4 and A5 were each subjected to a bending cycle three times.
  • the call information from the elevator control 31 can be used and evaluated.
  • a gray code can be used for this purpose.
  • the described embodiment can be integrated into the elevator control 31 or executed as a separate device, which is equipped with a corresponding interface to the elevator control 31.
  • the floor information can then be transmitted via the interface.
  • the elevator control 31 and the evaluation unit 32 can be combined in the same housing or in the same module.
  • the individual cable sections can be loaded in addition to the bends on the traction sheave 2 with bends over the pulleys 1, 3, 4 on the counterweight 9 or on the car 8.
  • the pulleys 1, 3, 4 are also referred to as Pulleys or pulleys.
  • a separate limit bending cycle number is determined for each elevator layout (disposition) by appropriate life tests with defined traction sheave and pulley diameters.
  • FIG. 3 is a lift with a 2: 1 suspension simplified.
  • the support cable 5 is attached to a first attachment point 6 on the shaft and via a first guide roller 1, which is secured to the counterweight 9, via a traction sheave 2, which is secured to the shaft and further deflection rollers 3 and 4, on the underside of Cabin 8 are arranged, to a second attachment point 7 in the shaft.
  • the shaft is down bounded by a bottom 10 and up through a ceiling 13.
  • FIG. 4 is a table and a diagram with four rides F1 - F4 of the elevator shown.
  • the floors are indicated as numbers 0 to 50.
  • the floors are indicated as numbers 0 to 50.
  • the car 8 moves on to the floor 32.
  • the car 8 moves on to the floor 25.
  • the fourth drive F4 finally the cabin 8 goes back to the floor 0.
  • the four columns right next to the positions of the three pulleys 1, 3 and 4 and the traction sheave 2 on the rope 5 are given as absolute values in meters relative to the rope beginning at the attachment point 6.
  • FIG. 5 shows again the diagram with the four runs F1 to F4 of the elevator and below the resulting trip table. It can be seen from this table which position the four pulleys 1 to 4 have at the beginning of the respective journey (start) and at the end of this journey on the carrying cable 5.
  • the deflection roller 1 is located at the beginning 0.8 m from the beginning of the rope (attachment point 6).
  • the guide roller 1 is then located 24.8 m from the beginning of the rope. That is, there are 24.8 m rope between the guide roller 1 and the attachment point 6.
  • the rope 5 is thus overrun during the drive F1 from Pulley 1 on the route between 0.8 m and 24.8 m.
  • FIG. 6 shown diagram in which the positions of the pulleys 1 to 4 are shown on the individual cable sections A1, A2, A3 to AN.
  • FIG. 7 shows a flowchart for the method for determining the Ablegereife the suspension element of an elevator.
  • the cable 5 is divided into N sections A1 to AN, and the positions of the pulleys 1 to 4 on the cable 5 are assigned to each floor 0-50.
  • the attachment point 6 forms the zero point or reference point. However, the reference point can also be any other location, such as the attachment point 7. Thereafter, for each trip F1 to F4 and each Pulley 1 to 4 the roll over length is recorded (see FIG. 5 ).
  • Those cable sections with the most or most damaging bending changes can be detected at any time.
  • a limit can be set for the permissible damage, ie for the permissible number of bending changes.
  • S5 When this number is reached (S5), a service message can be issued (S6) to indicate that the suspension means 5 should be replaced. But it can also be determined only the section on the rope 5, which has received the greatest damage. In the latter case, this cable section can then be visually or by means of auxiliary equipment, e.g. magnetically inspected.
  • a support means section Ai is subject to a simple bend when this support means section Ai is bent on one of the deflection rollers 1, 3 or 4 or on the traction sheave 2 in a first direction. If this support means section Ai is bent at a later time in the opposite direction, this support means section Ai is then subject to a return bend.
  • the suspension element section which is located at the in FIG. 3 shown cabin position POS1 is located on the guide roller 3, a simple bend. Later, when the car 8 is then in the position POS2, the support means section is located on the traction sheave 2 and is now also subject to a back bend.
  • the evaluation unit 32 can thus determine on the basis of certain geometries that result from the elevator layout, for example the parameter H1 - H4, HQ and BK and the lifting height of the car 8, whether a particular cable section Ai is subjected during a trip to a simple bend and / or a back bend ,
  • the diameter of the guide rollers 1 to 4 is marked with the reference symbol D.
  • D the diameter of the pulleys 1 to 4 can be taken into account in determining the Ablegereife.
  • the wrap angle can also be taken into account when determining the expiry date.
  • the weighting factor GF can be based on the diameter D of the pulley 1 to 4 be related. For a deflection roller 1 to 4 with a small diameter D, the weighting factor GF is chosen greater than in the case of a deflection roller 1 to 4 with a large diameter D. Likewise, the weighting factor GF can be related to the wrap angle of the traction sheave 2.
  • the weighting factor GF is selected to be smaller than if the wrap angle of the suspension element 5 on the traction sheave 2 is small.
  • the weighting factor can be related to the load suspended on the suspension element 5. The larger this load, the greater the weighting factor GF is chosen.
  • the maximum number of bending changes of the most stressed rope piece was very difficult to determine, since the traffic patterns of each elevator are different and therefore it is not obvious which support center piece is subjected to the most bending changes.
  • the number of rides of a lift also give no indication.
  • An advantage of the invention is that the ropes 5 can be stored very individually and thus fully exploited. If the discard condition were determined on the basis of the number of journeys or by estimation, reserves would have to be built in which could cause high costs in maintenance.
  • the Ablegereife of support means 5 for example, steel cables, Aramidseilen, straps or belts with tension strands of steel strands or synthetic fibers can be found.
  • the suspension element 5 can additionally be provided with an optical control device 30 (FIG. FIG. 1 ) be monitored. Thus, the determination of the Ablegereife can be made even more precise and secure.
  • an optical control device 30 for example, a video camera can be used.
  • the suspension element 5 can also be optically controlled by a service technician. In the optical control, for example, attention is paid to wire breaks, bubbles in the aramid support and changes in the geometry of the suspension 5.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Elevator Control (AREA)

Claims (11)

  1. Procédé pour déterminer l'état d'usure avant le remplacement d'un moyen porteur d'un ascenseur,
    dans lequel le moyen porteur (5) est guidé par l'intermédiaire d'une poulie d'entrainement (2 ; 20) et/ou un ou plusieurs rouleaux de renvoi (1, 3, 4) et qui relie une cabine (8) à un contrepoids (9),
    et qui comporte les étapes suivantes :
    le moyen porteur (5) est subdivisé en plusieurs segments (A1 - AN), un emplacement mémoire étant attribué à chacun de la multiplicité de segments (A1 - AN) pour compter le nombre de changements de courbure,
    pour chacun des segments (A1 - AN), on détermine si pendant une course (F1 - F4) de la cabine (8), le segment (Ai) passe sur la poulie d'entrainement (20) et/ou sur un ou plusieurs des rouleaux de renvoi (1 - 4), et si cela se produit, alors on augmente le degré d'usure (R(Ai)) correspondant représentant l'état d'usure avant le remplacement, et le compteur du nombre de changements de courbure compte le nombre de changements de courbure de chaque segment (A1 - AN) ce qui est déterminant de la durée de vie du câble des segments de câble avec la plupart des changements de courbure.
  2. Procédé selon la revendication 1 du brevet, dans lequel si le degré d'usure (R(Ai)) d'une des nombreuses sections (A1 - AN) atteint un nombre de cycle de courbure indiquant le nombre maximal de cycles de courbure admissible, alors le moyen porteur (5) est mur pour un remplacement.
  3. Procédé selon la revendication 2 du brevet, dans lequel tant que le degré d'usure (R(Ai)) de la section (A1 - AN) la plus sollicitée ne dépasse pas le nombre de cycles de courbure admissible, il n'est pas encore nécessaire de remplacer le moyen de porteur.
  4. Procédé selon la revendication 1 du brevet, dans lequel on détermine le type de courbure (SB, RB) et dans lequel on tient compte de la détermination par section du degré d'usure (R(Ai)).
  5. Procédé selon la revendication 4 du brevet, dans lequel on enregistre quel rouleau de renvoi (2, 3) engendre quelle courbure pour déterminer le type de courbure (SB, RB).
  6. Procédé selon la revendication 5 du brevet, dans lequel on tient compte de manière plus importante d'une courbure inverse (RB) que d'une courbure simple (SB) lors de la détermination du degré d'usure (R(Ai)).
  7. Procédé selon la revendication 1 du brevet, dans lequel on tient compte d'un angle d'enroulement et/ou d'un diamètre des rouleaux de renvoi (1, 3, 4) lors de la détermination par segments du degré d'usure (R(Ai)).
  8. Procédé selon la revendication 1 du brevet, dans lequel on génère une information d'entretient lorsque le degré d'usure (R(Ai)) a dépassé une certaine valeur pour un des segments (A1 - AN).
  9. Procédé selon la revendication 1 du brevet, dans lequel l'ascenseur est mis hors service lorsque le degré d'usure (R(Ai)) a dépassé une certaine valeur pour un des segments (A1 - AN).
  10. Procédé selon la revendication 1 du brevet, dans lequel le moyen porteur (5) est de plus surveillé par un appareil de contrôle optique (30).
  11. Dispositif pour déterminer l'état d'usure avant le remplacement selon une des revendications 1 à 10 du brevet,
    - avec une commande (31) pour commander l'ascenseur, et
    - avec une unité de traitement (32) reliée à la commande (31) et conçue et exploitable de telle sorte qu'elle détermine les objectifs de degré d'usure (R(Ai)) pour chaque segment (A1 - AN) à l'aide des données obtenues par la commande (31) et un emplacement mémoire étant attribué à chacun de la multiplicité de segments (A1 - AN) pour compter le nombre de changements de courbure.
EP09797506A 2008-07-18 2009-07-15 Procédé et dispositif pour déterminer l état d usure nécessitant le remplacement d un moyen porteur d un ascenseur Active EP2303749B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12197675.7A EP2592035B1 (fr) 2008-07-18 2009-07-15 Procédé et dispositif de détermination de l'état d'usure nécessitant le remplacement d'un moyen de support d'un ascenseur
EP09797506A EP2303749B1 (fr) 2008-07-18 2009-07-15 Procédé et dispositif pour déterminer l état d usure nécessitant le remplacement d un moyen porteur d un ascenseur

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP08160740 2008-07-18
EP09797506A EP2303749B1 (fr) 2008-07-18 2009-07-15 Procédé et dispositif pour déterminer l état d usure nécessitant le remplacement d un moyen porteur d un ascenseur
PCT/EP2009/059106 WO2010007112A1 (fr) 2008-07-18 2009-07-15 Procédé et dispositif pour déterminer l’état d’usure nécessitant le remplacement d’un moyen porteur d’un ascenseur

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP12197675.7A Division EP2592035B1 (fr) 2008-07-18 2009-07-15 Procédé et dispositif de détermination de l'état d'usure nécessitant le remplacement d'un moyen de support d'un ascenseur
EP12197675.7 Division-Into 2012-12-18

Publications (2)

Publication Number Publication Date
EP2303749A1 EP2303749A1 (fr) 2011-04-06
EP2303749B1 true EP2303749B1 (fr) 2013-02-13

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EP12197675.7A Active EP2592035B1 (fr) 2008-07-18 2009-07-15 Procédé et dispositif de détermination de l'état d'usure nécessitant le remplacement d'un moyen de support d'un ascenseur
EP09797506A Active EP2303749B1 (fr) 2008-07-18 2009-07-15 Procédé et dispositif pour déterminer l état d usure nécessitant le remplacement d un moyen porteur d un ascenseur

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EP12197675.7A Active EP2592035B1 (fr) 2008-07-18 2009-07-15 Procédé et dispositif de détermination de l'état d'usure nécessitant le remplacement d'un moyen de support d'un ascenseur

Country Status (8)

Country Link
US (1) US9643816B2 (fr)
EP (2) EP2592035B1 (fr)
CN (1) CN102099279B (fr)
BR (1) BRPI0915982B1 (fr)
ES (2) ES2404854T3 (fr)
HK (1) HK1156292A1 (fr)
PT (1) PT2592035T (fr)
WO (1) WO2010007112A1 (fr)

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EP2873636A1 (fr) 2013-11-13 2015-05-20 Kone Corporation Procédé de surveillance de l'état de câbles d'ascenseur et dispositif pour celui-ci
WO2017021263A1 (fr) 2015-07-31 2017-02-09 Inventio Ag Concepts de détection d'un état de détérioration d'une force portante dans un agencement d'élément de suspension pour un ascenseur

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EP2894119B1 (fr) * 2014-01-08 2016-04-06 KONE Corporation Câble pour ascenseur, ascenseur et procédé
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WO2018060542A1 (fr) 2016-09-29 2018-04-05 Kone Corporation Plaque d'informations électronique d'un élément d'ascenseur
WO2018083764A1 (fr) * 2016-11-02 2018-05-11 三菱電機株式会社 Dispositif pour l'entretien/inspection de câble principal d'ascenseur, et procédé pour l'entretien/inspection de câble principal d'ascenseur
CN106744161A (zh) * 2016-12-27 2017-05-31 杭州西奥电梯有限公司 一种监测电梯曳引媒介寿命的方法及系统
CN107352353B (zh) * 2017-08-15 2019-05-03 日立电梯（中国）有限公司 电梯绳轮滑动摩擦磨损寿命测试系统及其测试方法
DE102018214511A1 (de) * 2018-08-28 2020-03-05 Contitech Antriebssysteme Gmbh Verfahren zur Detektion des Zustands von Tragmitteln
CN110550525B (zh) * 2019-09-17 2020-11-03 东北大学 一种基于电梯钢丝绳弯曲次数的电梯安全检测方法
WO2023165696A1 (fr) * 2022-03-03 2023-09-07 Kone Corporation Solution pour une attribution d'appel d'ascenseur d'un groupe d'ascenseurs
WO2023165697A1 (fr) * 2022-03-03 2023-09-07 Kone Corporation Solution pour fournir des données de condition d'un câble d'ascenseur
WO2024056933A1 (fr) 2022-09-13 2024-03-21 Kone Corporation Procédé et agencement d'ascenseur

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US7117981B2 (en) * 2001-12-19 2006-10-10 Otis Elevator Company Load bearing member for use in an elevator system having external markings for indicating a condition of the assembly
FI113755B (fi) * 2003-01-31 2004-06-15 Kone Corp Menetelmä hissiryhmän hissien ohjaamiseksi
BRPI0418637A (pt) * 2004-03-16 2007-09-04 Otis Elevator Co sistema de monitoração da estrutura de suporte para um elevador, conjunto da estrutura de suporte do elevador, e, método para monitorar uma condição da estrutura de suporte do elevador
EP1847501B1 (fr) * 2006-04-18 2014-10-01 Inventio AG Installation d'élévation dotée d'un dispositif de surveillance du moyen d'entraînement destiné à la surveillance de l'état d'un moyen d'entraînement et procédé de vérification du moyen d'entraînement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2873636A1 (fr) 2013-11-13 2015-05-20 Kone Corporation Procédé de surveillance de l'état de câbles d'ascenseur et dispositif pour celui-ci
US9714155B2 (en) 2013-11-13 2017-07-25 Kone Corporation Method for condition monitoring of elevator ropes and arrangement for the same
AU2014262180B2 (en) * 2013-11-13 2018-12-20 Kone Corporation Method for condition monitoring of elevator ropes and arrangement for the same
WO2017021263A1 (fr) 2015-07-31 2017-02-09 Inventio Ag Concepts de détection d'un état de détérioration d'une force portante dans un agencement d'élément de suspension pour un ascenseur

Also Published As

Publication number Publication date
HK1156292A1 (en) 2012-06-08
BRPI0915982A2 (pt) 2019-03-19
ES2404854T3 (es) 2013-05-29
PT2592035T (pt) 2016-09-21
EP2303749A1 (fr) 2011-04-06
ES2592223T3 (es) 2016-11-28
CN102099279B (zh) 2014-03-12
US9643816B2 (en) 2017-05-09
EP2592035B1 (fr) 2016-06-15
CN102099279A (zh) 2011-06-15
BRPI0915982B1 (pt) 2019-12-17
EP2592035A1 (fr) 2013-05-15
US20110172932A1 (en) 2011-07-14
WO2010007112A1 (fr) 2010-01-21

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