EP3224181A1 - Elevator system - Google Patents
Elevator systemInfo
- Publication number
- EP3224181A1 EP3224181A1 EP15800870.6A EP15800870A EP3224181A1 EP 3224181 A1 EP3224181 A1 EP 3224181A1 EP 15800870 A EP15800870 A EP 15800870A EP 3224181 A1 EP3224181 A1 EP 3224181A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tension members
- group
- current
- measuring device
- tension
- 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
Links
- 239000000725 suspension Substances 0.000 claims abstract description 51
- 238000012360 testing method Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 17
- 238000012544 monitoring process Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 2
- 238000012806 monitoring device Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 108010074506 Transfer Factor Proteins 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
-
- 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 device and 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 or a current, a voltage, an electrical resistance or an electrical conductivity is measured. On the basis of a size measured in this way, it is possible to conclude that the tension members of the suspension element are intact.
- the publication DE 3934654 AI discloses such a device or such a method for determining a state of the tension members of a belt-like suspension means. Based on a circuit in which all the tension members of the suspension element are connected in series, it can be determined in a simple manner whether at least one of the tension members is interrupted or not.
- an elevator system is first proposed with a suspension, wherein the support means comprises a plurality of parallel in a common plane juxtaposed electrically conductive tension members, which are electrically isolated from each other, and which are surrounded by a common jacket. In this case, all the tension members of the suspension element in a circuit are electrically interconnected.
- This circuit comprises a current or voltage source and a measuring device.
- the measuring device is arranged between a first group of tension members and a second group of tension members, so that electric current first flows from the current or voltage source through the first group of tension members, then through the measuring unit and finally through the second group of tension members back to Current or voltage source flows.
- the tension members of the first group of tension members and / or the tension members of the second group of tension members are interconnected in series.
- This device has the advantage that various states of the suspension element can be reliably detected by such an arrangement of a circuit. First, it can be determined whether one or more of the tension members of the suspension element are interrupted. The measuring device can determine in a simple manner, whether substantially current flows through the circuit or whether substantially no current flows through the circuit.
- each tensile member of the first group is directly adjacent only by tensile members of the second group, and each tensile member of the second group is directly adjacent only by tensile members of the first group.
- the proposed device in addition to detecting an electrical Contact of directly adjacent tension members can also be detected if two non-adjacent tensile carriers of different groups of tension members are electrically connected to each other via a further electrically conductive element. This can occur, for example, when the jacket of the suspension element is damaged, and the two not directly adjacent tension members of different groups of tension members are guided at the damaged point via an electrically conductive pulley, for example a deflection pulley on the counterweight. Also in this case, the circuit is shortened so to speak, so that on the measuring device in a simple manner, a significant drop in the current or the voltage can be determined.
- this device Since in the proposed device, no precise values must be determined by the measuring device, this device is very robust against disturbing influences such as temperature fluctuations, electromagnetic radiation, movements of the suspension means and the like. A change in state of the suspension element results in a marked change in the current intensity or the voltage or the electrical resistance in the measuring device. Thus, it only has to be determined whether a determined value is above or below a predefined limit value.
- the first group of tension members and the second group of tension members comprise the same number of tension members.
- the measuring device is designed as a current measuring device or as a voltage measuring device. Depending on whether a current or a voltage source is used, a current measuring device or a voltage measuring device can be selected as the measuring device.
- the current or voltage source is designed to generate an alternating current or a direct current.
- the circuit further comprises an isolation monitor.
- an isolation monitor This has the advantage that thereby a further state of the support means can be monitored.
- a ground fault may occur to a grounded object in the elevator installation.
- an exposed tensile beam or a protruding the wire make electrical contact to a drive pulley or a Umlenkpulli.
- the insulation monitor can now easily determine whether such a ground fault exists or not.
- each tension member is electrically connected to one another at a first end of the suspension element.
- two tension members are electrically connected to the current or voltage source at a second end of the suspension element, two further tension members are electrically connected to the measuring device, and any further tension members are electrically connected to each other in pairs.
- a method for monitoring at least one support means in an elevator system wherein the support means comprises a plurality of parallel in a common plane juxtaposed electrically conductive tension members, which are electrically isolated from each other, and which are surrounded by a common jacket ,
- the method comprising the steps of: passing a test current through a first set of tension members; Passing the test current through the second group of tension members; and determining a characteristic of the test current by means of a measuring device, wherein the test current is passed through the measuring device after it is passed through the first group of tension members, and before it is passed through the second group of tension members.
- This method offers the advantage that different states of the suspension element can be determined in a simple manner. Thus it can be determined with a very high reliability whether one of the tension members is interrupted and whether there is an electrical contact between two adjacent tension members. In both cases, a current intensity or a voltage at the measuring device changes markedly. Thus, it is not necessary to determine exact values with the measuring device. This makes the process more robust against disturbing influences such as temperature fluctuations, electromagnetic radiation, movements of the suspension element and the like.
- the tension members of this first group when passing the test current through the first group of tension members, are each spaced apart by a tension member of the second group of tension members, and when passing the test flow through the second group of tension members, the tension members of this second group are respectively spaced apart by a tension member of the first group of tension members.
- the tension members of the first group of tension members and / or the tension members of the second group of tension members are connected in series during the conduction of the test current through the first and second groups of tension members.
- test current is passed through all the tensile carriers of the suspension element.
- an alternating current or a direct current or an electrical signal is conducted through the tension members during the conduction of the test current.
- a voltage or a current intensity or a signal property is determined.
- the method comprises the step: checking the circuit consisting of at least the first group of tension members and the second group of tension members for ground fault.
- a suspension in an elevator system can be used in different types of elevator systems.
- elevator systems with or without shaft, with or without counterweight, or even elevator systems with different gear ratios can be used.
- each suspension element in an elevator installation which comprises a plurality of electrically conductive tension members, which are surrounded by a common insulating jacket, can be monitored with the method disclosed here or with the device disclosed here.
- Figure 1 shows an exemplary embodiment of an elevator system
- Figure 2 shows an exemplary embodiment of a support means
- Figure 3 shows an exemplary embodiment of a support means with a monitoring device.
- the elevator installation 40 illustrated schematically and by way of example in FIG. 1 includes an elevator cage 41, a counterweight 42 and a suspension element 1 and a traction sheave 43 with associated drive motor 44.
- the traction sheave 43 drives the suspension element 1 and thus moves the elevator cage 41 and counterweight 42 counter to one another ,
- 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 suspension element 1 is fastened to a first suspension element fastening device 47, and then guided first around the support roller 46 of the counterweight 42.
- the suspension element 1 is placed over the traction sheave 43, guided around the carrier roller 46 of the cabin 41, and finally connected by a second suspension element fastening device 47 to a fixed point.
- the wrap factor is 2 to 1.
- a loose end 1.1 of the suspension element 1 is provided with a Needlesssensvomchtung 2 for temporary or permanent electrical contacting of the tension members and thus for monitoring the support means 1.
- such a contacting device 2 is arranged at both ends 1.1 of the suspension element 1.
- 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 Kunststoff musclessvomchtung 2 is connected at one end of the support means 1.1 with a monitoring device 3.
- the monitoring device 3 comprises a current or a voltage source and a measuring device.
- the 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 bus 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.
- FIG. 2 shows a section of an exemplary embodiment of a suspension element 1.
- the support means 1 comprises a plurality of parallel electrically in a common plane juxtaposed electrically conductive tension members, which are surrounded by a common electrically insulating jacket.
- 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.
- contact elements can be attached to the tension members 5, which can then be connected in a simple manner with themaschineticiansvomchtung 2.
- the suspension element 1 is equipped with longitudinal ribs on a traction side.
- the voltage source 12 and the measuring device 13 form the monitoring device 3.
- the illustrated interconnection of the tension members 5 in a single circuit and by the specific arrangement of the measuring device 13 and the voltage source 12 different states of the support means 1 can be determined in a reliable manner.
- an electrical contact between two adjacent tension members 5 can be detected by this arrangement.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14195381 | 2014-11-28 | ||
PCT/EP2015/077777 WO2016083507A1 (en) | 2014-11-28 | 2015-11-26 | Elevator system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3224181A1 true EP3224181A1 (en) | 2017-10-04 |
EP3224181B1 EP3224181B1 (en) | 2018-10-17 |
Family
ID=51987066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15800870.6A Active EP3224181B1 (en) | 2014-11-28 | 2015-11-26 | Elevator system |
Country Status (9)
Country | Link |
---|---|
US (1) | US10611604B2 (en) |
EP (1) | EP3224181B1 (en) |
CN (1) | CN107428506B (en) |
AU (1) | AU2015352498B2 (en) |
BR (1) | BR112017009860A2 (en) |
CA (1) | CA2966952C (en) |
ES (1) | ES2700594T3 (en) |
MX (1) | MX2017006873A (en) |
WO (1) | WO2016083507A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3577473A1 (en) | 2017-01-31 | 2019-12-11 | Inventio AG | Elevator with a monitoring arrangement for monitoring an integrity of suspension members |
CN110817653A (en) * | 2019-11-22 | 2020-02-21 | 合肥工业大学 | Detection method and detection system for inner core of steel belt |
CN114572794B (en) * | 2022-03-01 | 2023-08-22 | 宁波市特种设备检验研究院 | Intelligent elevator steel belt breakage detection device |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3934654A1 (en) | 1989-10-14 | 1991-05-23 | Sondermaschinenbau Peter Suhli | Break testing of continuous carrier belt - using carrier strands in non-conducting strap interconnected to form continuous conducting body |
US6633159B1 (en) * | 1999-03-29 | 2003-10-14 | Otis Elevator Company | Method and apparatus for magnetic detection of degradation of jacketed elevator rope |
US20020194935A1 (en) * | 2001-06-26 | 2002-12-26 | Arthur Clarke | Tensile load sensing belt |
US20030121729A1 (en) * | 2002-01-02 | 2003-07-03 | Guenther Heinz | Lift belt and system |
CN100564215C (en) | 2004-03-16 | 2009-12-02 | 奥蒂斯电梯公司 | A kind of method and device thereof of monitoring the situation of elevator load bearing member |
JP4597190B2 (en) * | 2004-03-16 | 2010-12-15 | オーチス エレベータ カンパニー | Elevator load bearing member wear and breakage detection |
BRPI0923524B1 (en) | 2008-12-22 | 2021-02-23 | Inventio Ag | process for monitoring an elevator support means, elevator support means monitoring device and elevator unit with a monitoring device |
EP2336072B1 (en) * | 2009-12-21 | 2013-02-27 | Inventio AG | Monitoring of a load bearing and drive device of a lift assembly |
US9599582B2 (en) * | 2010-09-01 | 2017-03-21 | Otis Elevator Company | Simplified resistance based belt inspection |
WO2012030332A1 (en) * | 2010-09-01 | 2012-03-08 | Otis Elevator Company | Resistance-based monitoring system and method |
WO2013087418A1 (en) * | 2011-12-16 | 2013-06-20 | Inventio Ag | System for making electrical contact with tension members in load-bearing means |
WO2013092163A1 (en) | 2011-12-20 | 2013-06-27 | Inventio Ag | Elevator system |
AU2013336857B2 (en) * | 2012-10-22 | 2016-12-22 | Inventio Ag | Monitoring of supporting means in elevator systems |
US9981830B2 (en) * | 2012-10-22 | 2018-05-29 | Inventio Ag | Support for an elevator installation |
US9840397B2 (en) * | 2012-11-29 | 2017-12-12 | Inventio Ag | Elevator installation |
US9975734B2 (en) * | 2012-12-18 | 2018-05-22 | Inventio Ag | Monitoring device and method for monitoring an elevator support |
FI124542B (en) * | 2012-12-30 | 2014-10-15 | Kone Corp | Method and arrangement of the condition of the lift rope |
WO2014191372A1 (en) * | 2013-05-28 | 2014-12-04 | Inventio Ag | Elevator system |
WO2015058792A1 (en) * | 2013-10-22 | 2015-04-30 | Kone Corporation | Method and device for checking the integrity of load bearing members of an elevator system |
WO2016046052A1 (en) * | 2014-09-26 | 2016-03-31 | Inventio Ag | Elevator system |
US10730720B2 (en) * | 2014-10-22 | 2020-08-04 | Inventio Ag | Method for monitoring elevator system suspension apparatus |
WO2016174184A1 (en) * | 2015-04-30 | 2016-11-03 | Inventio Ag | Elevator installation |
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 |
-
2015
- 2015-11-26 CA CA2966952A patent/CA2966952C/en active Active
- 2015-11-26 US US15/531,492 patent/US10611604B2/en active Active
- 2015-11-26 WO PCT/EP2015/077777 patent/WO2016083507A1/en active Application Filing
- 2015-11-26 ES ES15800870T patent/ES2700594T3/en active Active
- 2015-11-26 BR BR112017009860A patent/BR112017009860A2/en not_active Application Discontinuation
- 2015-11-26 CN CN201580064274.XA patent/CN107428506B/en active Active
- 2015-11-26 AU AU2015352498A patent/AU2015352498B2/en active Active
- 2015-11-26 MX MX2017006873A patent/MX2017006873A/en active IP Right Grant
- 2015-11-26 EP EP15800870.6A patent/EP3224181B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
CA2966952C (en) | 2023-05-23 |
CA2966952A1 (en) | 2016-06-02 |
CN107428506B (en) | 2019-06-21 |
US10611604B2 (en) | 2020-04-07 |
AU2015352498B2 (en) | 2018-12-13 |
ES2700594T3 (en) | 2019-02-18 |
AU2015352498A1 (en) | 2017-06-15 |
MX2017006873A (en) | 2017-08-14 |
US20170267489A1 (en) | 2017-09-21 |
WO2016083507A1 (en) | 2016-06-02 |
EP3224181B1 (en) | 2018-10-17 |
BR112017009860A2 (en) | 2017-12-19 |
CN107428506A (en) | 2017-12-01 |
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