EP3805139A1 - Dispositif de commande et procédé d'engagement d'un dispositif de blocage - Google Patents

Dispositif de commande et procédé d'engagement d'un dispositif de blocage Download PDF

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Publication number
EP3805139A1
EP3805139A1 EP20020467.5A EP20020467A EP3805139A1 EP 3805139 A1 EP3805139 A1 EP 3805139A1 EP 20020467 A EP20020467 A EP 20020467A EP 3805139 A1 EP3805139 A1 EP 3805139A1
Authority
EP
European Patent Office
Prior art keywords
dependent
safety gear
engaging
time
car
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.)
Pending
Application number
EP20020467.5A
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German (de)
English (en)
Inventor
Frank Schmidt
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.)
Aufzugswerke Schmitt & Sohn & Co KG GmbH
Original Assignee
Aufzugswerke Schmitt & Sohn & Co KG GmbH
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 Aufzugswerke Schmitt & Sohn & Co KG GmbH filed Critical Aufzugswerke Schmitt & Sohn & Co KG GmbH
Publication of EP3805139A1 publication Critical patent/EP3805139A1/fr
Pending 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
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical

Definitions

  • the invention relates to a device and a method for triggering a safety gear in elevators, in particular in traction sheave elevators, for use in building technology when modernizing or building new elevators according to the preambles of independent claims 1 and 11.
  • WO 2010 046 489 A1 a speed limiter in an elevator system, with a reset device for a brake of the speed limiter, the brake being mechanically and remotely releasable and releasable.
  • the overspeed governor is equipped with a remote-controlled release mechanism, for example a magnetic switch.
  • the speed limiter is the detector for the overspeed and acts as an actuator to trigger the safety gear.
  • shaft copying systems with evaluation units of absolute value encoders, for example based on perforated tapes, magnetic tapes or optical tapes and electrically triggered safety devices, for example by opening valves or dropping magnets, is known.
  • the shaft copying system is the detector for the overspeed and controls the actuator to trigger the safety gear.
  • the invention should be equally suitable for use in new systems as well as for modernization solutions in which an existing safety gear cannot or should not be replaced.
  • a safe, intelligent shaft copying device with an integrated evaluation unit or a separate evaluation unit as a system for recognizing operating parameters of the elevator system that differ from normal operation, for example excessive speed, or unintentional or atypical movements with or without closed doors.
  • the intelligent shaft copying device comprises means for position-dependent acquisition of operating parameters of the elevator system.
  • the integrated evaluation unit or separate evaluation unit of the intelligent shaft copying device advantageously comprises an integrated or remote analog or digital computer with processor, program memory and data memory and interface for data acquisition and optionally for programming.
  • the integrated or separate evaluation unit of the intelligent shaft copying device forms the time-dependent position s (t) F and from it the actual speed v (t) F by one-time differentiation according to the time depending on s (t) F and / or by two-fold differentiation according to the Time, the actual acceleration a (t) F of the car and / or the time-dependent position s (t) G and, depending on this, depending on s (t) G, the actual speed v (t) G and depending on the time by differentiation / or the actual acceleration a (t) G of the car of the counterweight by two differentiation according to time.
  • further differentiations according to time can also take place in each case in order to increase the differential response sensitivity in the event of changes in the time course of the position s (t) F and / or s (t) G.
  • the correlation of these values is preferably determined taking into account the control parameters and optionally taking into account the car load in one or more calibration runs and as at least one target value curve or a target value profile with defined ranges of permissible values for the position-dependent target speed and / or the position-dependent target acceleration and / or possibly further position-dependent derivatives of the target acceleration are stored. It is advantageous that a tolerance band or a profile with defined ranges of permissible values for the nominal value curve is formed in each case.
  • the safety gear is triggered via means for braking the release rope, whereby the conventional safety gear of the elevator system intervenes.
  • the respective tolerance band can be recorded continuously during driving operation and stored in a self-learning manner and thus updated. Continuous adaptation of the setpoint bands or the setpoint profile for the position-dependent speed and / or the position-dependent acceleration of the car and / or the counterweight is possible in order to detect changes and load conditions that occur in practice and make them tolerable.
  • a defined maximum tolerance band can be specified as a limitation of the tolerable changes.
  • the position values of the car and / or the counterweight can advantageously be detected by optical, magnetic and / or acoustic incremental or absolute value sensors.
  • a first derivative and / or a second derivative is preferably formed by an integrated or separate evaluation unit by differentiating the at least once and / or at least twice Position value according to time. The result is the speed and / or the acceleration of the car and / or the counterweight.
  • the speed can be detected by speed-proportional means such as inductive sensors, which detect the respective speed depending on the position of the car and / or the counterweight and forward it as an actual value to the intelligent shaft copying device.
  • speed-proportional means such as inductive sensors, which detect the respective speed depending on the position of the car and / or the counterweight and forward it as an actual value to the intelligent shaft copying device.
  • the intelligent shaft copying device can determine the position of the car and / or the counterweight by integrating it once.
  • the position of the door switches is advantageously used as an initial value and / or as an intermediate value as intermediate and support values of the positions.
  • the intelligent shaft copying device can determine the position-dependent acceleration values from the speed signal by differentiation.
  • the acceleration can be detected by means of acceleration proportional, such as at least one inertial acceleration sensor, which detects the respective acceleration depending on the position of the car and / or the counterweight and forwards it as an actual value to the intelligent shaft copying device.
  • acceleration proportional such as at least one inertial acceleration sensor, which detects the respective acceleration depending on the position of the car and / or the counterweight and forwards it as an actual value to the intelligent shaft copying device.
  • the intelligent shaft copying device can determine the speed of the car and / or the counterweight by integrating once and / or the position of the car and / or the counterweight by integrating twice.
  • the position of the Position sensors of a conventional shaft copying system and / or the door switches are used as intermediate and support values for the positions.
  • the intelligent shaft copying device can use differentiation to determine at least one position-dependent derivation of the acceleration value from the acceleration signal, which derives particularly sensitive critical changes in the position-dependent course of movement of the car and / or the counterweight.
  • the means for position-dependent acquisition of operating parameters of the elevator system include means for acquiring the structure-borne noise on components of the elevator system, such as on the revolving release rope and / or on the car rails and / or on the propellants.
  • the frequency spectrum contained therein can be analyzed, for example, by means of a fast Fourier transform analysis.
  • the frequency spectrum determined in normal operation serves as a reference or, together with a defined tolerance band, as a setpoint spectrum. During operation, the frequency spectrum is continuously monitored and compared as an actual value with the setpoint spectrum.
  • the safety device is triggered controlled by the intelligent shaft copying device via means for braking the release rope, whereby the conventional safety device of the elevator system intervenes.
  • a revolving alternative or additional release rope is used to release the safety gear, which acts on the safety gear in a manner analogous to a speed limiter rope.
  • the alternative or additional revolving release rope is used to trigger the safety gear in the same way as a speed limiter rope.
  • the alternative or additional release cable comprises a flexible material with high tear resistance transverse to the direction of rotation, for example a steel cable or a plastic-coated steel cable, a fiber cable, a belt, a belt or a chain.
  • two guide pulleys mounted in any position, for example hanging, standing or sideways, in the shaft head and in the shaft pit can be used to guide the revolving release cable.
  • the pulleys and their attachments are also independent of the installation position, direction of rotation and speed and no presetting or calibration of direction or speed is required.
  • the tension of the revolving release rope is maintained by means of springs and / or weights via the lower pulley or the upper pulley or both pulleys.
  • the braking means comprises a braking device on at least one deflection pulley of the release rope, which the braking effect via form or frictional engagement and mechanically, hydraulically or pneumatically, for example via bolts, brake linings or the like, on at least one deflection pulley or add-on parts such as brake disks, perforated disks or the like of the deflection pulley of the release rope.
  • the braking means comprises a cable brake, by means of which the braking force can also be applied directly to the release cable.
  • the braking means is advantageously kept open by electrical voltage and is applied immediately when the voltage is removed by gravity, secure springs or the like, so that a fail-safe principle is also achieved as a result.
  • the braking device can be applied at any time to save electricity when the vehicle is stationary and released again before the next trip.
  • the actuation of the braking means can be monitored via one or more brake contacts; so that the open, the closed or both states can be recognized by the intelligent, secure shaft copying system.
  • the brake When the voltage drops after a triggering criterion has been detected, for example an overspeed, the brake is applied, at least one deflection pulley and / or the triggering rope brakes directly. This activates the safety gear via the release rope.
  • a triggering criterion for example an overspeed
  • additional switches can be integrated into a circuit to control the braking device, which enable the safety gear to be triggered for test purposes or in the event of other safety requirements, for example for monitoring protected areas or during assembly activities. It is advantageous that the use of an alternative or additional revolving release rope to release the safety gear is analogous to a speed limiter rope.
  • the alternative or additional circumferential release rope comprises a material that is flexible transversely to the direction of rotation and has high tear resistance, for example a steel cable or a plastic-coated steel cable, a fiber rope, a belt, a belt or a chain.
  • the alternative or additional revolving release rope can be guided using two guide pulleys that can be mounted in any position.
  • the pulleys, the braking means and the means for detecting position-dependent operating parameters of the elevator system are independent of the installation position, the direction of rotation and the speed and that no presetting or calibration of direction or speed is required.
  • the tension of the revolving release rope can be maintained via the lower pulley or the upper pulley or over both pulleys by means of springs and / or weights.
  • the intelligent, safe shaft copying system together with the means for detecting position-dependent operating parameters of the elevator system, is according to the invention the detector for overspeed and / or movements that deviate from a target tolerance range, such as position deviations, speed deviations, deviating accelerations, deviations in the third or higher degree differentiation of the position of the car and / or the counterweight according to the time and / or for exceptional acoustic and / or mechanical Vibrations in the elevator system and controls the braking device for the release rope as an actuator to release the safety gear.
  • a target tolerance range such as position deviations, speed deviations, deviating accelerations, deviations in the third or higher degree differentiation of the position of the car and / or the counterweight according to the time and / or for exceptional acoustic and / or mechanical Vibrations in the elevator system and controls the braking device for the release rope as an actuator to release the safety gear.
  • the intelligent, secure shaft copying system can in particular comprise a stationary coded tape which is read or scanned by a reading head.
  • the reading head can be permanently connected to a car or a cabin.
  • the fixed encoded tape can comprise a magnetic tape, a perforated tape or the like.
  • Embodiments of the present invention are described below only by way of example. These examples illustrate the best ways of putting the invention into practice that are currently known to the applicant, although of course these are not the only ways in which this could be achieved.
  • the description sets forth the functions of the example and the sequence of steps for creating and operating the example. However, the same or equivalent functions and sequences may be achieved from other examples.
  • Fig. 1 shows a device for engaging a safety gear in elevators, comprising means for detecting position-dependent operating parameters 120 of the elevator system, a revolving release rope 4, an upper pulley 6 for the trigger rope 4, a lower pulley 2 for the trigger rope 4, coupling means 3 for coupling the trigger rope 4 to the safety device 20 of the car 10, an intelligent, secure shaft copying system 100, an elevator control 200 for exchanging control parameters 210 with the intelligent, secure one Shaft copying system 100 and at least one braking means 110 for triggering a braking force on the upper deflection roller 6 of the release rope 4 and / or on the lower deflection roller 2 of the release rope 4 and / or on the release rope 4, the at least one braking means 110 in this embodiment via brake shoes the upper deflection pulley 6 of the release rope 4 acts and can be activated via a brake control signal 101 by the intelligent safe shaft copying system 100 depending on the position-dependent operating parameters 120 of the elevator system and thereby the safety gear 20 of the car 10 can be activated via
  • F1 is a downward force component which is generated, for example, by a spring or a weight and via the bearing of the lower deflection roller 1, the lower deflection roller 2 tensions the release cable 4.
  • Optional means for load detection 30 include, for example, a force sensor or a load cell for detecting the weight force acting on the car 10 relative to the car suspension.
  • Fig. 2 shows a device for engaging a safety gear in elevators, comprising means for detecting position-dependent operating parameters 120 of the elevator system, a revolving release rope 4, an upper pulley 6 for the trigger rope 4, a lower pulley 2 for the trigger rope 4, coupling means 3 for coupling the trigger rope 4 to the safety gear 20 of the car 10, an intelligent, safe shaft copying system 100, an elevator control 200 for exchanging control parameters 210 with the intelligent safe shaft copying system 100 and at least one braking means 110 for releasing a braking force on the release rope 4, the at least one braking means 110 in
  • This exemplary embodiment is designed as a rope brake which acts on the release rope 4 and via a brake control signal 101 through the intelligent safe shaft copying system 100 as a function of the position-dependent operating parameters 120 of the elevator system can be activated and thereby the safety device 20 of the car 10 can be activated via the release rope 4 and the coupling means 3.
  • F1 is a downward force component which is generated, for example, by a spring or a weight and via the bearing of the lower deflection roller 1, the lower deflection roller 2 tensions the release cable 4.
  • Optional means for load detection 30 include, for example, a force sensor or a load cell for detecting the weight force acting on the car 10 relative to the car suspension.

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  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP20020467.5A 2019-10-10 2020-10-08 Dispositif de commande et procédé d'engagement d'un dispositif de blocage Pending EP3805139A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019007039.9A DE102019007039A1 (de) 2019-10-10 2019-10-10 Steuervorrichtung und Verfahren zum Einrücken einer Fangvorrichtung

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EP3805139A1 true EP3805139A1 (fr) 2021-04-14

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EP20020467.5A Pending EP3805139A1 (fr) 2019-10-10 2020-10-08 Dispositif de commande et procédé d'engagement d'un dispositif de blocage

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EP (1) EP3805139A1 (fr)
DE (1) DE102019007039A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114955778A (zh) * 2022-07-04 2022-08-30 浙江速捷电梯有限公司 一种电梯安全用紧急制动装置
CN116499772A (zh) * 2023-06-28 2023-07-28 天津所托瑞安汽车科技有限公司 车辆制动性能评估方法、装置、电子设备及存储介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1698580A1 (fr) * 2005-03-05 2006-09-06 ThyssenKrupp Aufzugswerke GmbH Système d'ascenseur
WO2010046489A1 (fr) 2008-10-24 2010-04-29 Inventio Ag Limiteur de vitesse pour un ascenseur
DE102017216877A1 (de) * 2017-09-25 2019-03-28 Contitech Antriebssysteme Gmbh Antriebssystem für ein Aufzugssystem sowie Aufzugssystem

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005102899A1 (fr) * 2004-04-20 2005-11-03 Mitsubishi Denki Kabushiki Kaisha Système d'arrêt d'urgence d'un ascenseur
FI118641B (fi) * 2006-06-21 2008-01-31 Kone Corp Menetelmä ja järjestelmä hississä hissikorin hallitsemattoman liikkeen tunnistamiseksi ja pysäyttämiseksi
DE112007003745B4 (de) * 2007-12-27 2019-06-27 Mitsubishi Electric Corp. Aufzugsystem
FI20125046L (fi) * 2012-01-16 2013-07-17 Kone Corp Hissi

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1698580A1 (fr) * 2005-03-05 2006-09-06 ThyssenKrupp Aufzugswerke GmbH Système d'ascenseur
WO2010046489A1 (fr) 2008-10-24 2010-04-29 Inventio Ag Limiteur de vitesse pour un ascenseur
DE102017216877A1 (de) * 2017-09-25 2019-03-28 Contitech Antriebssysteme Gmbh Antriebssystem für ein Aufzugssystem sowie Aufzugssystem

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114955778A (zh) * 2022-07-04 2022-08-30 浙江速捷电梯有限公司 一种电梯安全用紧急制动装置
CN116499772A (zh) * 2023-06-28 2023-07-28 天津所托瑞安汽车科技有限公司 车辆制动性能评估方法、装置、电子设备及存储介质
CN116499772B (zh) * 2023-06-28 2023-10-03 天津所托瑞安汽车科技有限公司 车辆制动性能评估方法、装置、电子设备及存储介质

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