EP3209989A1 - Installation d'élévation - Google Patents

Installation d'élévation

Info

Publication number
EP3209989A1
EP3209989A1 EP15763882.6A EP15763882A EP3209989A1 EP 3209989 A1 EP3209989 A1 EP 3209989A1 EP 15763882 A EP15763882 A EP 15763882A EP 3209989 A1 EP3209989 A1 EP 3209989A1
Authority
EP
European Patent Office
Prior art keywords
values
support means
elevator
value
tension members
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.)
Withdrawn
Application number
EP15763882.6A
Other languages
German (de)
English (en)
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
Publication of EP3209989A1 publication Critical patent/EP3209989A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
    • 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
    • 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
    • B66B1/3407—Setting or modification of parameters of the control system
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
    • 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
    • B66B7/062—Belts

Definitions

  • the present invention relates to a method for monitoring at least one suspension element in an elevator installation.
  • belt-like support means which have tension members and a jacket arranged around the tension members used.
  • belt-like support means can not be in a conventional manner
  • 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. This reduces the diameter of a
  • the patent US7123030B2 discloses such a method for determining a degree of wear of a belt-like suspension means. Based on a specific
  • the process should be feasible with cost-effective means.
  • the support means comprises at least one electrically conductive tension member, which of an electrically
  • the method comprises the steps of: repeatedly determining a value of an electrical characteristic of at least one tension member or a group of tension members; Forming an average value based on the determined values; and comparing the formed average value with a reference value.
  • This method has the advantage that short-term disturbing influences, which change the electrical resistance of the tension members, have a smaller influence on the assessment of the condition of the suspension element.
  • the formation of an average value can greatly reduce the unwanted influence of such disturbing influences. If, for example, nine values are determined under normal conditions and a value is determined under special conditions with regard to electromagnetic radiation, temperature and the like, the influence of this one strongly deviating value is reduced by a factor of ten.
  • the reference value may be, for example, a predetermined value for the elevator installation. In an alternative embodiment, the reference value is present
  • the reference value can be formed, for example, as a mean value based on a plurality of measured values.
  • the electrical characteristic is a
  • the repeated determination of the Values between two and fifty, preferably between two and thirty, more preferably between two and ten values determined.
  • a higher number of determined values for forming the mean value may be advantageous.
  • the repeated determination of the values is carried out within one week or within one day or within one hour or within one minute.
  • a time interval for determining the values as a function of the respective elevator installation and its usage parameters can be selected. Basically, at a shorter time interval, for example, at one minute, short-term changes in the electrical characteristic of the tension member are better detectable, but the influence of disturbing influences is greater. In the case of a longer time interval, for example in the case of one day, however, short-term changes in the electrical characteristic of the tension member are less detectable, but the influence of disturbing influences is smaller.
  • an appropriate time interval may be chosen for the specific requirements of the monitoring of a specific elevator installation.
  • the repeated determination of the values is carried out at least during two different states of the elevator installation.
  • the states of the elevator installation may differ, for example, in a driving state of an elevator cage, a loading of the elevator cage, in a position of the elevator cage in a shaft and the like.
  • Elevator installation has the advantage that an undesirably strong influence of a condition of the elevator installation can be reduced by the formation of the mean value.
  • a position of the elevator car in the shaft can have an influence on the ambient temperature acting on the suspension element, since a temperature distribution in elevator shafts is often not homogeneous.
  • the Drive machine can have an influence on electromagnetic fields to which the suspension element is exposed.
  • the repeated determination of the values is carried out at regular intervals. This has the advantage that the determined values are distributed homogeneously in a time interval of the repeated determination. As a result, as meaningful a mean as possible for the corresponding time interval can be achieved.
  • an arithmetic mean is formed when the mean value is formed. This has the advantage that an average of several determined values can be obtained thereby, whereby each value is weighted equally.
  • a moving average is formed when the mean value is formed.
  • This can be, for example, a moving arithmetic mean.
  • a moving average has the advantage that at any time an average value can be provided for assessing the condition of the suspension element. For example, the ten most recently determined values can be used for the formation of the mean value.
  • a weighted average is formed when the mean value is formed.
  • This may, for example, be a weighted arithmetic mean.
  • a weighted average has the advantage that specific circumstances and requirements can be taken into account. For example, a value for a normal loading of the car may be weighted differently than a value for an exceptionally high or low loading of the car. As a result, a further reduction in the influence of undesired interference influences on the assessment of the state of the suspension element can be achieved.
  • two or more average values formed are also compared with one another in addition to the comparison with the reference value.
  • the two or more mean values formed can be determined by the time interval of
  • Embodiment is that thereby further information can be obtained, which is about the information from the comparison with the reference value go out.
  • the support means comprises at least three electrically conductive tension members in a common electrically insulating jacket.
  • the support sleeve comprises! exactly one electrically conductive tension member in an electrically insulating jacket.
  • the support means comprises exactly two electrically conductive tension members in a common electrically insulating jacket.
  • Elevator installation can be used in different types of Aufzugsan.
  • elevator systems with or without shaft, with or without counterweight, or elevator systems with different gear ratios can be used.
  • any suspension means in an elevator installation comprising an electrically conductive tension member surrounded by an electrically insulating jacket can be monitored by the method disclosed herein.
  • Figure 1 shows an exemplary embodiment of an elevator system
  • Figure 2 shows an exemplary embodiment of a support means
  • Figure 3a shows an exemplary embodiment of a support means
  • Figure 3b shows an exemplary embodiment of a support means.
  • the elevator installation 40 shown schematically and by way of example in FIG. 1 includes a
  • the traction sheave 43 drives the support means 1 and thus moves the elevator car 41 and the counterweight 42 gegen secrets.
  • the Drive motor 44 is controlled by an elevator control 45.
  • the cabin 41 is Designed to accommodate 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 suspension element 1 is at a first
  • suspension element 1 runs at a higher speed via the drive 43, 44, in accordance with a transfer factor, than the car 41 or counterweight 42 move.
  • the wrap factor is 2: 1.
  • a loose end 1.1 of the support means 1 is provided with a contact ieningsvorraum 2 for temporary or permanent electrical contacting of the tension members and thus for monitoring the support means 1.
  • a contact ieningsvorraum 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
  • Tragstoffende 1.1 are electrically connected.
  • 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 in a non-overrun area of the
  • 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 Tragmitteis 1 as electrical resistors in an electrical circuit for the determination of electrical resistance.
  • Monitoring device 3 is also connected to the elevator control 45.
  • This connection can be designed, for example, as a parallel relay or as a B US system.
  • a signal or a measured value can be transmitted from the monitoring device 3 to the elevator control 45 in order to take into account the state of the suspension element 1 as determined by the monitoring device 3 in a control of the elevator 40.
  • the monitoring device 3 is now repeated an electrical
  • a signal can be sent to the elevator control system 45, for example, which results in a cancellation of a warning message or a shutdown of the elevator installation, for example.
  • 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
  • FIG. 2 shows a section of an exemplary embodiment of a suspension element 1.
  • the support means 1 comprises a plurality of mutually parallel electrically conductive tension members 5, which are enveloped by a jacket 6. To the electric
  • tension members 5 Contacting the tension members 5, the jacket 6, for example, be pierced or removed, or the tension members 5 can also frontally of a
  • Contacting device 2 are electrically contacted. Furthermore, contact elements can be attached to the tension members 5, which can then be connected in a simple manner with the contacting device.
  • the suspension element is equipped with longitudinal ribs on a traction side.
  • Such longitudinal ribs improve a traction of the suspension element 1 on the traction sheave 43 and also facilitate lateral guidance of the suspension element 1 on the traction sheave 43.
  • the suspension element 1 can also be designed differently, for example without longitudinal ribs, or with a different number or different
  • the tension members 5 are designed to be electrically conductive.
  • FIG. 3 a shows a cross section of a further exemplary embodiment of a suspension element 1.
  • the suspension element 1 comprises an electrically conductive tension member 5, which is enveloped by a jacket 6.
  • the jacket 6 can be pierced or removed, for example, or the tension member 5 can also be contacted by an end face of a contacting device 2 electrically.
  • FIG. 3 b shows a cross section of a further exemplary embodiment of a suspension element 1.
  • the suspension element 1 comprises two electrically conductive tension members 5, which are enveloped by a jacket 6.
  • a tension member 5 is advantageously carried out in S-blow and the other tension member 5 in Z-stroke. This ensures that compensate for the torques occurring under load, so that the support means is not rotated under load from the groove of the traction sheave.
  • tension members 5 Contacting the tension members 5, the jacket 6, for example, be pierced or removed, or the tension members 5 can also frontally of a
  • Contacting device 2 are electrically contacted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (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)

Abstract

L'invention concerne un procédé de surveillance d'au moins un moyen de transport dans une installation d'élévation. Le moyen de transport comprend au moins un tirant électriquement conducteur, qui est entouré d'une gaine électriquement isolante. Le procédé comprend les étapes : la détermination répétée d'une valeur d'une caractéristique électrique d'au moins un tirant ou d'un groupe de tirants ; le calcul d'une valeur moyenne sur la base des valeurs déterminées ; et la comparaison de la valeur moyenne calculée à une valeur de référence.
EP15763882.6A 2014-10-22 2015-09-11 Installation d'élévation Withdrawn EP3209989A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14189831 2014-10-22
PCT/EP2015/070783 WO2016062454A1 (fr) 2014-10-22 2015-09-11 Installation d'élévation

Publications (1)

Publication Number Publication Date
EP3209989A1 true EP3209989A1 (fr) 2017-08-30

Family

ID=51752030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15763882.6A Withdrawn EP3209989A1 (fr) 2014-10-22 2015-09-11 Installation d'élévation

Country Status (4)

Country Link
US (1) US10730720B2 (fr)
EP (1) EP3209989A1 (fr)
CN (2) CN111232797A (fr)
WO (1) WO2016062454A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105246814A (zh) * 2013-05-28 2016-01-13 因温特奥股份公司 电梯设备
CA2966952C (fr) * 2014-11-28 2023-05-23 Inventio Ag Installation d'ascenseur
US9932203B2 (en) * 2015-07-31 2018-04-03 Inventio Ag Method and device for detecting a deterioration state of a load bearing capacity in a suspension member arrangement for an elevator
CN109230952B (zh) * 2018-09-30 2020-06-26 哈尔滨工业大学（深圳） 电梯曳引钢带张力及性能退化监测方法及系统
WO2020200727A1 (fr) 2019-03-29 2020-10-08 Inventio Ag Détermination de l'état d'un moyen de suspension

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4817761A (en) * 1987-04-28 1989-04-04 Mitsubishi Denki Kabushiki Kaisha Control apparatus for elevator
US6123176A (en) * 1996-05-28 2000-09-26 Otis Elevator Company Rope tension monitoring assembly and method
US6633159B1 (en) 1999-03-29 2003-10-14 Otis Elevator Company Method and apparatus for magnetic detection of degradation of jacketed elevator rope
CN1243658C (zh) * 2000-12-07 2006-03-01 三菱电机株式会社 电梯主缆绳延伸检测装置
US20020194935A1 (en) * 2001-06-26 2002-12-26 Arthur Clarke Tensile load sensing belt
WO2013087418A1 (fr) 2011-12-16 2013-06-20 Inventio Ag Système de mise en contact électrique de tirants dans des moyens de support
RU2589443C2 (ru) 2012-04-02 2016-07-10 Отис Элевэйтор Компани Калибровка системы обнаружения износа
AU2013361005B2 (en) * 2012-12-18 2017-01-05 Inventio Ag Lift system with monitoring device and method for monitoring a lift system
FI124542B (en) * 2012-12-30 2014-10-15 Kone Corp Method and arrangement of the condition of the lift rope

Also Published As

Publication number Publication date
US20170334677A1 (en) 2017-11-23
CN107074494A (zh) 2017-08-18
CN111232797A (zh) 2020-06-05
US10730720B2 (en) 2020-08-04
WO2016062454A1 (fr) 2016-04-28

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