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EP2808285B1 - Installation d'ascenseur - Google Patents

Installation d'ascenseur Download PDF

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Publication number
EP2808285B1
EP2808285B1 EP13169520.7A EP13169520A EP2808285B1 EP 2808285 B1 EP2808285 B1 EP 2808285B1 EP 13169520 A EP13169520 A EP 13169520A EP 2808285 B1 EP2808285 B1 EP 2808285B1
Authority
EP
European Patent Office
Prior art keywords
tension
traction means
warning
lift assembly
damaged
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.)
Not-in-force
Application number
EP13169520.7A
Other languages
German (de)
English (en)
Other versions
EP2808285A1 (fr
Inventor
Florian Dold
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.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Priority to ES13169520.7T priority Critical patent/ES2690587T3/es
Priority to EP13169520.7A priority patent/EP2808285B1/fr
Publication of EP2808285A1 publication Critical patent/EP2808285A1/fr
Application granted granted Critical
Publication of EP2808285B1 publication Critical patent/EP2808285B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
    • B66B7/1207—Checking means
    • B66B7/1215—Checking means specially adapted for ropes or cables
    • B66B7/1223—Checking means specially adapted for ropes or cables by analysing electric variables
    • 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

Definitions

  • the present invention relates to an elevator installation with a monitoring device for a suspension element, and to a method for monitoring at least one suspension element in an elevator installation.
  • a test current can be applied to the tension members.
  • a current flow, a voltage, an electrical resistance or an electrical conductivity is measured.
  • a size measured in this way it is possible to deduce an integrity or a degree of wear of the suspension element. Namely, reduces the diameter of a tension member by fractures of individual wires or by metallic abrasion, the electrical resistance of this tension member increases.
  • the patent US7123030B2 discloses such a method for determining a degree of wear of a belt-type suspension element. Based on a specific electrical resistance of electrically conductive tension members is closed on a breaking force of the suspension element.
  • Such a method has the advantage that a situation-appropriate reaction to the different states of the suspension element is made possible.
  • Such a warning state can in turn be used in a simple manner to trigger a corresponding reaction in accordance with the situation.
  • this method allows to assess the condition of a suspension more accurate and thus avoid unnecessary shutdown of the elevator system or to prevent dangerous further operation of the elevator system.
  • three states can be detected by the monitoring device during monitoring. This has the advantage that a condition of the suspension element can be estimated even more accurately than is possible with only two different defective states of the tension members.
  • interrupted tension member means a situation in which a tension member is substantially interrupted at one location such that substantially no electrical current can flow over that location.
  • Grounded tension member in this context means that a tension member is in contact with a grounded member such that electrical current applied to the tension member substantially drains off this grounded member.
  • damaged tension member in this context means that the tension member at at least one point damage, for example in the form of individual wire breaks or in the form of rusted wires, so that changes an electrical resistance of this tension member due to these damaged areas. Such damage to the tension members usually have the effect of increasing the electrical resistance of an affected tension member.
  • a "damaged tension member” may also be present if, due to damage, two adjacent tension members are in electrical contact with each other. This is the case, for example, when the jacket material between two tension members is damaged or when a broken wire of a tension member contacts an adjacent tension member. Such cross-connections between tension members usually have the effect of reducing the electrical resistance of an affected tension member.
  • each warning element is assigned to each individual suspension element with all associated tension members as well as a sum of all the suspension elements in the elevator installation with all associated tension members.
  • an interrupted tensile member or a grounded tensile member results in a more severe warning condition than a damaged tensile member.
  • a suspension element with an interrupted tension member or a grounded tension member is assigned a second-order error in each case.
  • a support means with at least one damaged tensile carrier then leads to a fault of the first degree if at most one tension member per suspension element has a damaged tension member and if the number of damaged tension members is smaller than the number of suspension elements.
  • a support means with at least one damaged tensile carrier then leads to a second-degree error if more than one tensile member per suspension element is damaged or if the number of damaged tensile members is equal to or greater than the number of suspension elements.
  • Such an exemplary weighting of the various defective states of the tensile carriers has the advantage that an elevator installation can continue to be operated in the case of non-hazardous defects with the deduction of an advance warning, but can be put out of operation in the event of dangerous defects of the tensile carriers.
  • a predefined position of an elevator car is approached before the elevator installation is put out of operation for further journeys.
  • a predefined position of the elevator car can be, for example, the next public stop starting from a current position of the elevator car.
  • a maintenance center responsible for the elevator installation when continuing to operate an advance warning, is informed of the detected condition of the tension members or of the warning status assigned thereto. This has the advantage that the maintenance center responsible for the elevator installation can plan a service or maintenance of the elevator installation according to this information.
  • an elevator installation with at least one suspension element, wherein the suspension element comprises electrically conductive tension members, which are surrounded by an electrically insulating jacket.
  • the elevator installation further comprises a monitoring device associated with the suspension element, wherein a method as described above can be carried out in the elevator installation.
  • the method disclosed here for monitoring a suspension element in an elevator installation can be used in different types of elevator installations.
  • elevator systems with or without shaft, with or without counterweight, or elevator systems with different gear ratios can be used.
  • any suspension means comprising electrically conductive tension members surrounded by an electrically insulating jacket in an elevator installation can be monitored by the method or apparatus disclosed herein.
  • FIG. 1 schematically illustrated lift system 40 includes an elevator car 41, a counterweight 42 and a support means 1 and a traction sheave 43 with associated drive motor 44.
  • the traction sheave 43 drives the support means 1 and thus moves the elevator car 41 and the counterweight 42 gegentechnisch.
  • Of the Drive motor 44 is controlled by an elevator control 45.
  • the cabin 41 is designed to receive people or goods and to transport between floors of a building. Cabin 41 and counterweight 42 are guided along guides (not shown). In the example, the cabin 41 and the counterweight 42 are each suspended on support rollers 46.
  • the support means 1 is fastened to a first support means fastening device 47, and then first guided around the support roller 46 of the counterweight 42.
  • the suspension element 1 is placed over the traction sheave 43, guided around the support roller 46 of the car 41, and finally connected by a second support means fastening device 47 with a fixed point.
  • the wrap factor is 2: 1.
  • a loose end 1.1 of the suspension element 1 is provided with a contacting device 2 for temporary or permanent electrical contacting of the tension members and thus for monitoring the suspension element 1.
  • a contacting device 2 is arranged at both ends 1.1 of the suspension element 1.
  • only one contacting device 2 is arranged on one of the support means ends 1.1, and the tension members on the other support means end 1.1 are electrically connected to each other.
  • the Tragstoffenden 1.1 are no longer burdened by the tensile force in the suspension element 1, as this tensile force is already passed through the suspension means fastening devices 47 into the building.
  • the contacting devices 2 are thus arranged in a non-overrun area of the suspension element 1 and outside the loaded area of the suspension element 1.
  • the contacting device 2 is connected at one end of the support means 1.1 with a monitoring device 3.
  • the monitoring device 3 interconnects the tension members of the suspension element 1 as electrical resistors in an electrical circuit for the determination of electrical resistances.
  • the monitoring device 3 is also connected to the elevator control 45.
  • This connection can be formed for example as a parallel relay or as a bus system.
  • a signal or a measured value can be transmitted from the monitoring device 3 to the elevator control 45 in order to control the state of the suspension element 1 as determined by the monitoring device 3 in a control of the elevator 40 consider.
  • the elevator installation 40 shown in FIG. 1 is exemplary. Other capping factors and arrangements, such as counterbalanced lift systems, are possible.
  • the contacting device 2 for contacting the support means 1 is then arranged according to the placement of the support means fastening devices 47.
  • the support means 1 comprises a plurality of mutually parallel electrically conductive tension members 5, which are enveloped by a jacket 6.
  • the jacket 6 can be pierced or removed, for example, or the tension members 5 can also be electrically contacted on the face side by a contacting device 2.
  • the suspension element is equipped with longitudinal ribs on a traction side. Such longitudinal ribs improve a traction of the support means 1 on the traction sheave 43 and also facilitate lateral guidance of the support means 1 on the traction sheave 43.
  • the support means 1 can also be designed differently, for example without longitudinal ribs, or with a different number or different arrangement of the tension members 5. It is essential for the invention that the tension members 5 are designed to be electrically conductive.
  • FIG. 3 exemplary evaluation tables for the evaluation of the detected states of the tension members are shown.
  • the determined states of the tension members can be assigned to a warning state. In each case the warning state is shown in the leftmost column. The determined states of the tension members are shown in the remaining columns.
  • the topmost table in FIG. 3 which represents an exemplary evaluation table for an individual suspension, can be interpreted as follows: If there are zero interrupted tension members, zero grounded tension members and zero damaged tension members, then the warning condition "no error" is assigned to the suspension element. If there is only one damaged tension member, the warning condition "1st degree error” is assigned to the suspension element. However, if at least one interrupted tension member or at least one grounded tension member or at least two damaged tension members are present, then so the warning means "fault 2nd degree" is assigned to the suspension element. Due to the assigned warning state, the system will continue to operate or continue operating with the removal of a warning or taken out of service.
  • the second, third and fourth evaluation table in FIG. 3 is in each case an exemplary embodiment of elevator systems with two, three or four suspension elements.
  • the first table in FIG. 3 executed, assigned different Wamzuholder for different defects of the tension members.
  • damaged tension members only lead to a second-degree error if the number of damaged tension members is equal to or greater than the number of suspension elements in the elevator installation.
  • an interrupted or grounded tension member will always result in a 2nd degree error.
  • an alert state for each individual suspension element is determined in an elevator installation with a plurality of suspension elements as well as a warning state for the entire elevator installation.
  • the warning state for each individual suspension element has the suffix "a” and the warning state for the elevator installation as a whole has the suffix "b".
  • Decisive for the continued operation or decommissioning of the elevator system is now the most serious warning condition. This can be both a warning state of an individual suspension means, as well as a warning condition for the entire elevator installation.

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)

Claims (11)

  1. Procédé, destiné à superviser au moins un moyen porteur (1) dans une installation d'ascenseurs (40), le moyen porteur (1) comprenant des supports de traction (5) conducteurs électriques, lesquels sont entourés par une enveloppe (6) isolante électrique, le procédé comprenant :
    - la supervision d'une résistance électrique du support de traction (5), par un dispositif de supervision (3), au moins deux des états :
    - support de traction interrompu
    - support de traction mis à la terre
    - support de traction endommagé
    pouvant être constatés ;
    - l'évaluation des états constatés des supports de traction (5),
    - un support de traction (5) interrompu par une résistance électrique tendant vers l'infini pouvant être constaté,
    - un support de traction (5) mis à la terre par une résistance électrique tendant vers le neutre pouvant être constaté,
    - un support de traction (5) endommagé par une résistance électrique élevée ou abaissée pouvant être constaté, et
    les états étant associés à un état d'alerte ; et
    - la poursuite du fonctionnement ou la poursuite du fonctionnement en déposant une alerte préalable ou la mise hors service de l'installation d'ascenseurs (40) sous considération de l'état d'alerte,
    caractérisé en ce que lors de l'évaluation, un état d'alerte est affecté aussi bien à chaque moyen porteur (1) individuel avec tous les supports de charge (5) associés, qu'également à une somme de tous les moyens porteurs (1) dans l'installation d'ascenseurs (40) avec tous les supports de charge (5) associés, et
    en ce que pour la poursuite du fonctionnement ou la mise hors fonction de l'installation d'ascenseurs (40) un état d'alerte le plus grave, choisi parmi les états d'alerte les plus graves de chaque moyen porteur (1) individuel et l'état d'alerte de la somme de tous les moyens porteurs (1) est déterminant.
  2. Procédé selon la revendication 1, lors de la supervision, trois états pouvant être constatés par le dispositif de supervision (3).
  3. Procédé selon l'une quelconque des revendications précédentes, aux supports de charge (5) pouvant être affectés au moins les états d'alerte
    - aucun défaut
    - défaut du 1er degré
    - défaut du 2ème degré.
  4. Procédé selon la revendication 3, lors de la poursuite du fonctionnement ou de la poursuite du fonctionnement en déposant une alerte préalable ou de la mise hors service de l'installation d'ascenseurs (40)
    - l'état d'alerte aucun défaut conduisant à la poursuite du fonctionnement
    - l'état d'alerte défaut du 1er degré conduisant à la poursuite du fonctionnement en déposant une alerte préalable
    - l'état d'alerte défaut du 2ème degré conduisant à la mise hors service de l'installation d'ascenseurs (40).
  5. Procédé selon l'une quelconque des revendications 3 ou 4, lors de l'évaluation, un support de traction (5) interrompu ou un support de traction (5) mis à la terre conduisant à un état d'alerte plus grave qu'un support de traction (5) endommagé.
  6. Procédé selon l'une quelconque des revendications 3 à 5, à un moyen porteur (1) avec un support de traction (5) interrompu ou un support de traction (5) mis à la terre étant affecté dans tous les cas un défaut de 2ème degré.
  7. Procédé selon l'une quelconque des revendications 3 à 6, un moyen porteur (1) avec au moins un support de traction (5) endommagé
    - conduisant à un défaut de 1er degré, si au maximum un support de traction (5) par moyen porteur (1) comporte un support de traction (5) endommagé et si le nombre des supports de traction (5) endommagés est inférieur au nombre de moyens porteurs (1)
    - conduisant à un défaut de 2ème degré si plus d'un support de traction (5) par moyen porteur est endommagé ou si le nombre de supports de traction (5) endommagés est supérieur ou égal au nombre de moyens porteurs (1).
  8. Procédé selon l'une quelconque des revendications précédentes, lors de la mise hors service de l'installation d'ascenseurs (40), une position prédéfinie d'une cabine d'ascenseurs (41) étant abordée, avant que l'installation d'ascenseurs (40) soit mise hors service pour d'autres déplacements.
  9. Procédé selon l'une quelconque des revendications précédentes, lors de la poursuite du fonctionnement en déposant une alerte préalable, un service d'entretien compétent pour l'installation d'ascenseurs (40) étant informé sur l'état constaté des supports de traction (5) ou sur l'état d'alerte qui y est affecté.
  10. Procédé selon l'une quelconque des revendications précédentes, le procédé comprenant en outre l'étape :
    - de l'affichage d'un état constaté des supports de traction (5) ou d'un état d'alerte affecté aux moyens porteurs (1) sur un système d'affichage placé dans l'installation d'ascenseurs (40).
  11. Installation d'ascenseurs (40) doté d'au moins un moyen porteur (1), le moyen porteur (1) comprenant des supports de traction (5) conducteurs électriques, lesquels sont entourés par une enveloppe (6) isolante électrique, et d'un dispositif de supervision (3) affecté au moyen porteur (1), dans l'installation d'ascenseurs (40) le procédé selon l'une quelconque des revendications 1 à 10 étant réalisable.
EP13169520.7A 2013-05-28 2013-05-28 Installation d'ascenseur Not-in-force EP2808285B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES13169520.7T ES2690587T3 (es) 2013-05-28 2013-05-28 Instalación de ascensor
EP13169520.7A EP2808285B1 (fr) 2013-05-28 2013-05-28 Installation d'ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13169520.7A EP2808285B1 (fr) 2013-05-28 2013-05-28 Installation d'ascenseur

Publications (2)

Publication Number Publication Date
EP2808285A1 EP2808285A1 (fr) 2014-12-03
EP2808285B1 true EP2808285B1 (fr) 2018-08-01

Family

ID=48534228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13169520.7A Not-in-force EP2808285B1 (fr) 2013-05-28 2013-05-28 Installation d'ascenseur

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EP (1) EP2808285B1 (fr)
ES (1) ES2690587T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113132687B (zh) * 2021-04-16 2023-01-06 浙江鄞城工程管理有限公司 基于视频监控和特征识别的建筑升降安全智能监测预警方法及云服务器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2367747B1 (fr) * 2008-12-22 2013-07-03 Inventio AG Procédé destiné à la surveillance d'un moyen de portage d'ascenseur, dispositif de surveillance d'un moyen de portage d'ascenseur et installation d'ascenseur dotée d'un tel dispositif de surveillance
CA2778870C (fr) * 2009-12-21 2018-05-08 Inventio Ag Surveillance d'un moyen de support et d'entrainement d'un systeme d'ascenseur
KR101447535B1 (ko) * 2010-09-01 2014-10-06 오티스 엘리베이터 컴파니 저항-기반 모니터링 시스템 및 방법

Also Published As

Publication number Publication date
ES2690587T3 (es) 2018-11-21
EP2808285A1 (fr) 2014-12-03

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