EP2649002B1 - Aufzugsanlage mit einem schallaufnehmer zum erfassen von körperschall - Google Patents

Aufzugsanlage mit einem schallaufnehmer zum erfassen von körperschall Download PDF

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Publication number
EP2649002B1
EP2649002B1 EP11784715.2A EP11784715A EP2649002B1 EP 2649002 B1 EP2649002 B1 EP 2649002B1 EP 11784715 A EP11784715 A EP 11784715A EP 2649002 B1 EP2649002 B1 EP 2649002B1
Authority
EP
European Patent Office
Prior art keywords
counterweight
guide
sound
evaluating circuit
solid
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
EP11784715.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2649002A1 (de
Inventor
Karl Weinberger
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
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Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Priority to EP11784715.2A priority Critical patent/EP2649002B1/de
Publication of EP2649002A1 publication Critical patent/EP2649002A1/de
Application granted granted Critical
Publication of EP2649002B1 publication Critical patent/EP2649002B1/de
Not-in-force legal-status Critical Current
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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
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • 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
    • B66B5/0025—Devices monitoring the operating condition of the elevator system for maintenance or repair

Definitions

  • the present invention relates to an elevator system with a sound pickup for detecting structure-borne noise and a method for operating such an elevator system according to the subject-matter of the patent claims.
  • the counterweight In an elevator installation with a car and a counterweight for balancing the weight of the car, the counterweight is typically suspended on a support and / or propellant via a bearing and guided by guide elements on guide rails. Such bearings and guide elements can be the starting point for a fatal malfunction of the elevator system. Because in case of failure of these elevator components either the counterweight can crash or tilt on the guide rails and get stuck. Both leads to damage and a costly repair of the elevator system.
  • the cabin is with electrical energy provided. This is typically done via a hanging cable that connects the cabin to a power grid. However, such a power supply is not provided for the counterweight.
  • the maximum distance between the elevator car and the counterweight may be up to approximately one shaft height. This distance can be so great and as a result of the sound level decrease so much that a reliable continuous monitoring of the counterweight is not guaranteed.
  • a continuous monitoring of the counterweight can be done, but this must be provided a relatively hoho number of microphones along the entire shaft extension. This is associated with increased assembly and material costs.
  • the invention is therefore based on the object to develop a monitoring of elevator components on the counterweight, in particular a bearing or a guide element, taking into account the specific energy supply requirements of the counterweight.
  • the invention should be simple and inexpensive to implement.
  • an elevator installation has a car, a counterweight that balances the car, and a support and / or propellant on which the car and the counterweight are suspended.
  • the elevator system is characterized by the fact that a sound pickup is coupled to the elevator system and designed to detect structure-borne noise, which is generated at the counterweight.
  • An advantage of such an elevator installation is that elevator components which are located at the counterweight are to be monitored simply by means of the sound recorder. Because the sound pickup can be positioned at a location in the shaft that is easy to power. Thus, a complex power supply of the counterweight is not necessary.
  • the acoustic sensor is in this case particularly easily coupled to the support and / or propellant or to a guide plane of the counterweight. Both the carrying and / or blowing agent and the guide plane of the counterweight, for example a guide rail, transmit structure-borne noise from the counterweight to the sound pickup.
  • the carrying and / or blowing agent forms a loop between one of its first ends and a first deflection roller in which the counterweight is suspended via a bearing.
  • the counterweight In a 2: 1 suspension of the counterweight, the counterweight is typically suspended on a counterweight roller in the sling of the carrier and / or propellant.
  • the connection between this counterweight roller and the counterweight is realized by means of a bearing.
  • the bearing forms an axis of rotation about which the counterweight roller rotates.
  • the bearing of the counterweight roller is subject to a progressive aging process, which can lead to a functional failure of the bearing. For example, the connection between the counterweight roller and the bearing solve and crash the counterweight.
  • the clearance between the bearing and the counterweight roller as well as the rotational movement of the counterweight roller itself produce vibrations that are in a typical frequency and / or amplitude range.
  • the vibrations change with the passage of time or with increasing wear of the bearing and / or the counterweight roller.
  • the vibrations are transmitted as structure-borne noise via the support and propellant or the management level of the counterweight to the transducer. In this case, the vibration course over time is detected by the transducer.
  • the counterweight is guided by means of at least one guide element on a guide plane.
  • the guide element may be a guide shoe, a guide roller or the like.
  • the management level is realized as a guide rail or as a guide cable or the like.
  • a guide shoe or a guide roller is subjected to a wear and aging process with continuous use duration. For example, guide surfaces of the guide shoe or the bearings of the guide roller become worn. The wear of these guide elements can lead to a functional failure, whereby the reliable guidance of the counterweight may no longer be guaranteed.
  • This game leads in the process of the counterweight to vibrations that propagate as structure-borne noise, for example in the guide rails or via suspension bearings of the counterweight in the carrying and / or propellant.
  • the vibrations between the guide elements and, for example, a guide rail are in a characteristic frequency range and / or amplitude range. With continuous wear of the guide elements and / or the guide surface, this frequency range or amplitude range changes accordingly. These changes in the vibration behavior can be detected via transmission of structure-borne noise by the sound sensor.
  • the sound pickup is coupled to the first end of the carrying and / or propellant.
  • the sound pickup is coupled to the guide plane of the counterweight. Also in this arrangement, the sound pickup is particularly easy to a with respect to the roadway of the counterweight stationary elevator component, such as a guide rail, mountable.
  • an evaluation circuit is connected to the sound pickup and evaluates the detected structure-borne sound.
  • the evaluation circuit has at least one processor and one memory unit.
  • the invention also relates to a method for operating the above elevator installation, wherein the acoustic sensor detects structure-borne noise, which is generated at the counterweight and transmitted by means of the carrying and / or propellant.
  • the evaluation circuit evaluates the detected structure-borne sound.
  • the structure-borne sound detected by the sound sensor is evaluated in terms of frequency and / or amplitude as a frequency spectrum.
  • the evaluated frequency spectrum is compared with at least one stored in the evaluation frequency spectrum, which represents an operating value, compared.
  • the evaluation of structure-borne noise and the comparison of the frequency spectra in the processor are made.
  • the stored frequency spectrum or the operating value is stored in the memory unit.
  • the stored frequency spectrum can correspond to a frequency spectrum which comprises at least the characteristic frequencies and / or amplitudes of the elevator component to be monitored in admissible operation. This is a permissible operating value. If the evaluated frequency spectrum corresponds to the stored frequency spectrum, there is a positive evaluation result. The permissible operating value is therefore maintained.
  • the stored frequency spectrum may represent an inadmissible operating value.
  • the frequency spectrum includes at least those characteristic frequencies and / or amplitudes that occur in an impermissible operation of the monitored elevator component. A positive evaluation result is then present, as long as the evaluated frequency spectrum does not correspond to the stored frequency spectrum. The inadmissible operating value is therefore not achieved.
  • a plurality of frequency spectra are stored in the evaluation circuit, which represent at least one permissible and / or an impermissible operating value.
  • the evaluated frequency spectrum is compared with several stored frequency spectra. If the evaluated frequency spectrum corresponds to one of the stored frequency spectra of a permissible operating value or as long as the evaluated frequency spectrum does not correspond to one of the stored frequency spectra of an impermissible operating value, a positive evaluation result is present.
  • the evaluation result here includes the operating mode of the elevator installation, such as a normal operation or a maintenance operation, which are assigned to a permissible operating value.
  • the evaluation result includes the information which elevator component, for example a bearing or a guide element, has reached the inadmissible operating value.
  • the evaluation circuit compares the detected structure-borne noise with an operating value and triggers a state change alarm upon detection of a malfunction.
  • the evaluation circuit compares the detected structure-borne sound with a permissible operating value and triggers the state change alarm in the event of deviation from the permissible operating value.
  • the evaluation circuit compares the detected structure-borne noise with an inadmissible operating value and triggers a state change alarm when the inadmissible operating value is reached.
  • the state change alarm indicates that the elevator component to be monitored, such as a bearing or a guide element of the counterweight, is to be replaced or repaired.
  • the elevator installation is provided for maintenance work.
  • a service technician is notified to service the elevator system.
  • the responsibility alert preferably contains the information as to which of the elevator components to be monitored has reached the inadmissible operating value. This simplifies the fault diagnosis and shortens the maintenance work.
  • the elevator installation is shut down in the event of a responsibility change alarm.
  • the occurrence of a fatal malfunction can be prevented.
  • the disused elevator system is provided for a maintenance work.
  • Fig. 1 shows an elevator system 10.
  • This elevator system has a car 1, a counterweight 2, a support and propellant 3, in which the car 1 and the counterweight 3 are suspended in a 2: 1 ratio and a pulley 5.1.
  • the traction sheave is 5.1 with a in the Fig. 1 not shown drive unit coupled for clarity, and is in operative contact with the carrying and propellant. 3
  • the car 1 and the counterweight 2 are movable by means of a rotational movement of the traction sheave 5.1, which transmits a drive torque of the drive unit to the support and propellant means 3 substantially along vertically oriented guide rails.
  • the guide rails in the Fig. 1 not shown.
  • the car 1 and the counterweight 2 are guided by means of guide elements, such as guide shoes or guide rollers on the guide rails.
  • the counterweight 2 is suspended in a first loop of the carrying and propellant 3.
  • the first loop is formed by a part of the support and propellant, which lies between a first end 3.2 of the support and propellant 3 and a guide roller 5.2.
  • the counterweight 2 is suspended by means of a bearing 4.1 on the first loop.
  • the counterweight 2 is coupled to the bearing 4.1.
  • the bearing 4.1 represents the fulcrum of a counterweight support roller 4.
  • the support and / or propellant 3 extends from a first fixed point, to which the first end 3.2 of the support and / or propellant is attached, down to the counterweight roller 4
  • the carrying and / or propellant 3 wraps around the counterweight carrying roller 4 by approximately 180 ° and then extends upwards to the first deflecting roller 5.2.
  • the cabin 1 is suspended in a second loop of the carrying and / or propellant 3.
  • the second loop is formed by a part of the carrying and / or propellant, which lies between a second end 3.1 of the support and / or propellant 3 and a second traction sheave 5.1.
  • the cabin 1 is suspended by means of two cabin carrying rollers 7.1, 7.2 on the second loop. It goes the carrying and / or propellant 3 from a second fixed point to which the second end 3.1 of the carrying and / or propellant is attached, down to a first cabin roll 7.1.
  • the carrying and / or propellant 3 wraps around the first cabin roll 7.1 by approximately 90 °, then extends substantially horizontally to a second cabin roll 7.2 and umschling the second cabin roll 7.2 by approximately 90 °. Furthermore, the carrying and / or propellant 3 extends upward to the traction sheave 5.1. From the traction sheave 5.1, the carrying and / or propellant 3 finally extends to the first guide pulley 5.2.
  • the two fixed points at which the first and second ends 3.2, 3.1 of the carrying and / or propellant 3 are attached, the guide pulley 5.2, the traction sheave 5.1, and the guide rails of the car 1 and the counterweight 2 are directly or indirectly to a supporting structure, typically shaft walls, coupled.
  • the first end 3.2 of the carrying and / or propellant 3 is coupled to a sound pickup 8.
  • the sound sensor 8 detects structure-borne sound, which transmits the carrying and / or propellant 3 thereto.
  • the sound pickup is coupled to a guide rail of the counterweight 2.
  • the sound pickup 8 detects structure-borne noise, which transmits the guide rail to the sound pickup 8.
  • the structure-borne noise arises when operating the elevator installation 10 by vibrations on elevator components. For example, vibrations occur through the play between the guide elements of the car 1 or the guide elements of the counterweight 2 and the corresponding guide rails, by the drive unit, by the play in the bearings of the guide pulley 5.2, traction sheave 5.1, cabin roll 7.1, 7.2 and counterweight roller 4, and Vibrations of the carrying and blowing agent 3 itself.
  • the acoustic sensor preferably detects structure-borne noise in a frequency range between 5 and 60000 Hz, in particular between 5 and 2500 Hz.
  • an evaluation circuit 9 is provided.
  • the evaluation circuit 9 is connected to the evaluation circuit 9 via a signal transmission path, typically a signal line.
  • a signal transmission path typically a signal line.
  • the sound sensor 8 transforms the detected structure-borne noise into a signal and transmits this signal via the signal transmission path to the evaluation circuit 9.
  • the evaluation circuit 9 has at least one processor and a memory unit. From the transducer 8 incoming signals are spectrally analyzed by the processor, in particular the frequencies and amplitudes of the transmitted structure-borne noise. This spectral analysis leads to a frequency spectrum. The processor can now compare this frequency spectrum with one or more frequency spectra stored in the memory unit.
  • the frequency spectra stored on the memory unit correspond to different operating values.
  • An operating value can represent both a permissible and an impermissible operating value.
  • a state change alarm is triggered by the evaluation circuit 9.
  • the triggering of the state change alarm leads at least to the fact that the elevator installation 10 is provided for a maintenance work in which the malfunction of the elevator installation 10 is remedied. For example, a service center is alerted to instruct a service technician to service the corresponding elevator installation 10. Alternatively, when a state change alarm is triggered, the service technician is notified directly via a mobile radio receiving system in communication with the elevator installation to service the corresponding elevator installation 10.
  • the service technician is set in knowledge of the Radiosart.
  • the maintenance technician can procure specific replacement material in order to repair the elevator system as quickly and efficiently as possible.
  • the elevator system is also silent when a state change alarm occurs.
  • a service technician is also instructed to wait for the lift system 10 and to put it back into service.

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)
  • Elevator Control (AREA)
EP11784715.2A 2010-12-07 2011-11-22 Aufzugsanlage mit einem schallaufnehmer zum erfassen von körperschall Not-in-force EP2649002B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11784715.2A EP2649002B1 (de) 2010-12-07 2011-11-22 Aufzugsanlage mit einem schallaufnehmer zum erfassen von körperschall

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP10194033 2010-12-07
PCT/EP2011/070662 WO2012076329A1 (de) 2010-12-07 2011-11-22 Aufzugsanlage mit einem schallaufnehmer zum erfassen von körperschall
EP11784715.2A EP2649002B1 (de) 2010-12-07 2011-11-22 Aufzugsanlage mit einem schallaufnehmer zum erfassen von körperschall

Publications (2)

Publication Number Publication Date
EP2649002A1 EP2649002A1 (de) 2013-10-16
EP2649002B1 true EP2649002B1 (de) 2016-03-02

Family

ID=43909362

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11784715.2A Not-in-force EP2649002B1 (de) 2010-12-07 2011-11-22 Aufzugsanlage mit einem schallaufnehmer zum erfassen von körperschall

Country Status (12)

Country Link
US (1) US9004231B2 (ko)
EP (1) EP2649002B1 (ko)
KR (1) KR101932294B1 (ko)
CN (1) CN103347807B (ko)
AU (1) AU2011340888B2 (ko)
BR (1) BR112013014221B1 (ko)
CA (2) CA2820711A1 (ko)
ES (1) ES2574377T3 (ko)
HK (1) HK1189209A1 (ko)
MY (1) MY163795A (ko)
SG (2) SG2014014005A (ko)
WO (1) WO2012076329A1 (ko)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2576355T3 (es) * 2012-06-29 2016-07-07 Inventio Ag Instalación de ascensor
EP2687472A1 (de) * 2012-07-18 2014-01-22 Inventio AG Aufzugsanlage mit Sicherheitsvorrichtung
CN105829767A (zh) * 2013-12-18 2016-08-03 因温特奥股份公司 用于电梯系统的滑轮，具有滑轮的电梯系统和用于监测电梯系统的方法
US10054176B2 (en) 2015-02-25 2018-08-21 Rock Exotica Llc Lift systems, line brakes, and methods of vertically moving loads
EP3297944B1 (de) * 2015-05-21 2019-07-31 Inventio AG Aufzugsanlage
US10173144B2 (en) * 2016-10-19 2019-01-08 James HEATH Lift system with moving cam assembly and related methods
KR102616698B1 (ko) * 2017-07-07 2023-12-21 오티스 엘리베이터 컴파니 엘레베이터 상태 모니터링 시스템
EP3453667B1 (en) 2017-09-07 2022-05-11 Otis Elevator Company Elevator sound systems
CN111511668B (zh) * 2017-12-14 2022-05-17 因温特奥股份公司 通过应用数字替身来监控人员运送设备的状态的方法和装置
US11643301B2 (en) * 2019-10-28 2023-05-09 Otis Elevator Company System and method for monitoring sheave bearing condition
CN115352976B (zh) * 2022-08-22 2023-10-13 法立奥电梯(广东)有限公司 一种电梯故障检测分析方法

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
US5135079A (en) * 1990-02-28 1992-08-04 Kabushiki Kaisha Toshiba Noise prevention apparatus for a cable winch elevator
JP4744826B2 (ja) * 2004-08-18 2011-08-10 東芝エレベータ株式会社 エレベータの異常診断装置
JP4885519B2 (ja) * 2005-11-22 2012-02-29 三菱電機ビルテクノサービス株式会社 エレベータ装置
JP2007197150A (ja) * 2006-01-26 2007-08-09 Mitsubishi Electric Building Techno Service Co Ltd エレベータの地震復旧運転方法
WO2008001149A1 (en) * 2006-06-26 2008-01-03 Otis Elevator Company Elevator installation with reduced hoistway dimensions
FI121307B (fi) * 2008-04-07 2010-09-30 Kone Corp Tehonsyöttölaite ja tehonsyöttöjärjestely
EP2268565B1 (en) * 2008-04-08 2013-01-23 Otis Elevator Company Remotely observable analysis for an elevator system
JP2009274805A (ja) * 2008-05-14 2009-11-26 Hitachi Ltd エレベーターの異常検出装置
EP2604564A1 (de) * 2011-12-14 2013-06-19 Inventio AG Fehlerdiagnose einer Aufzuganlage und seiner Komponenten mittels Sensor

Also Published As

Publication number Publication date
ES2574377T3 (es) 2016-06-17
AU2011340888B2 (en) 2017-05-11
HK1189209A1 (zh) 2014-05-30
KR20140042768A (ko) 2014-04-07
US9004231B2 (en) 2015-04-14
CA2820711A1 (en) 2012-06-14
MY163795A (en) 2017-10-31
AU2011340888A1 (en) 2013-07-04
WO2012076329A1 (de) 2012-06-14
SG2014014005A (en) 2014-05-29
BR112013014221B1 (pt) 2020-11-17
SG191052A1 (en) 2013-07-31
CN103347807A (zh) 2013-10-09
US20120138391A1 (en) 2012-06-07
CA2852238A1 (en) 2012-06-14
KR101932294B1 (ko) 2019-03-20
CN103347807B (zh) 2016-04-06
EP2649002A1 (de) 2013-10-16
BR112013014221A2 (pt) 2016-09-13
CA2852238C (en) 2019-02-12

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