EP2683641A1 - Procédé et dispositif de vérification pour vérifier un système de limitation de vitesse d'une installation d'ascenseur - Google Patents

Procédé et dispositif de vérification pour vérifier un système de limitation de vitesse d'une installation d'ascenseur

Info

Publication number
EP2683641A1
EP2683641A1 EP12707749.3A EP12707749A EP2683641A1 EP 2683641 A1 EP2683641 A1 EP 2683641A1 EP 12707749 A EP12707749 A EP 12707749A EP 2683641 A1 EP2683641 A1 EP 2683641A1
Authority
EP
European Patent Office
Prior art keywords
test
release
begrenzerzugmittel
lever
release lever
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
Application number
EP12707749.3A
Other languages
German (de)
English (en)
Other versions
EP2683641B1 (fr
Inventor
Walter Windlin
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 EP20120707749 priority Critical patent/EP2683641B1/fr
Publication of EP2683641A1 publication Critical patent/EP2683641A1/fr
Application granted granted Critical
Publication of EP2683641B1 publication Critical patent/EP2683641B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B66B5/02—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
    • B66B5/048—Testing of overspeed governor

Definitions

  • the invention relates to a method and a test device for testing a
  • Passenger or freight elevators usually have a speed limitation system which comprises at least one cabin brake device and a so-called speed limiter.
  • the purpose of the speed limit system is to bring the elevator car to a standstill by braking by means of the car brake device when an impermissibly high speed and / or an impermissibly high acceleration of the elevator car occurs.
  • the cabin brake device is attached to the elevator car and comprises a
  • Actuation mechanism which is in operative connection with the speed limiter fixedly installed in the elevator system. Via this operative connection, the speed limiter detects the speed and / or the acceleration of the elevator car. If the speed limiter is an impermissibly high
  • the speed limiter activates the triggering mechanism of the cabin brake device via said operative connection, whereby the elevator car is braked.
  • the terms "impermissibly high speed” and “impermissibly high acceleration” are replaced by the term “inadmissible state of motion”.
  • speed limiter is used for devices that detect either an impermissibly high speed or an impermissibly high acceleration or both an impermissibly high speed and an impermissibly high acceleration.
  • the operative connection between the tripping mechanism of the car brake device moving synchronously with the elevator car and the speed limiter usually comprises a flexible limiting cable means.
  • a flexible limiting cable means As Beipporzugstoff preferably wire ropes are used.
  • other flexible means of traction For example, synthetic fiber ropes, belts or link chains applicable.
  • Beskyrzugstoff forms a traction device loop which rotates an upper and a lower Beskyrzugstoffrolle. These Beskyrzugstoffrollen are arranged so that a position of the Beskyrzugstoffs along the entire movement of
  • Elevator cab and parallel to this is movable.
  • This position of the Beipporzugstoffs is connected to the release mechanism of the car brake device, so that the movement of the elevator car is transmitted via the Beipporzugstoff on the Beipporzugstoffrollen and coupled to one of the Beipporzugstoffrollen speed limiter.
  • the speed limiter comprises means for detecting the speed and / or the acceleration of the Beipporzugstoffs and thus the elevator car.
  • the speed limiter comprises means for braking the Beskyrzugstoffs, which slow down the movement of the Beipporzugstoffs with limited braking force in the event of an impermissible movement of the Beipporzugstoffs or the elevator car. This can be done, for example, that the speed limiter one of the Beipporzugstoffrollen to which the
  • Beipporzugstoff runs, blocks or decelerates, or in that a braking device of the speed limiter is activated, which acts directly on the Beipporzugstoff.
  • Tripping element acts, which forms part of the release mechanism of the cabin brake device.
  • This release force of Beskyrzugschs causes the triggering of the triggering mechanism and thus the activation of the cabin brake device, whereupon the
  • Cabin braking device brakes the moving elevator car and brings it to a standstill.
  • Elevator standards and safety provisions contain rules on the relationship between on the
  • Tripping mechanism to be overcome tripping resistance force and the speed limiter on the Beipporzugstoff least transferable braking force.
  • the braking force transmitted from the speed limiter to the limiting tension means must be at least twice the tripping resistance force required to operate the tripping mechanism of the cabin braking device.
  • the limiter traction means may therefore be mounted on the limiter traction roller blocked by the speed limiter or in the activated braking device of the deceleration traction device
  • Do not slip speed limiter as long as the tensile force present in the Beipporzugstoff is less than twice the required for actuating the triggering mechanism on the tripping resistance force.
  • Beskyrzugstoff transferable braking force at least twice the effectively occurring tripping resistance force of the tripping mechanism of the cabin brake device corresponds.
  • the present invention has for its object to provide a cost-effective, safe and easy to handle method and a corresponding test device, which serve to test a speed limit system of an elevator system, which speed limit system comprises a brakable Beipporzugsch, which is connected in normal operation directly with a trigger mechanism of a car brake device is, wherein in normal operation, the cabin brake device is activated by the fact that the Beipporzugstoff is decelerated while driving the elevator car through the speed limiter, whereby the release mechanism of the car brake device is operated against a tripping resistance force of the trigger mechanism.
  • the method or the test device should make it possible to provide proof to an installed elevator system that the speed limiter the Beipporzugstoff transferable braking force is sufficient to ensure that the limiter traction means locked by the speed limiter can actuate the tripping mechanism of the cabin brake device with the required security against the tripping resistance force of the trigger mechanism.
  • the object is achieved by a method according to the first independent claim, as well as by a test device for testing a
  • the object is achieved in a method for testing a speed limitation system of an elevator installation in which speed limit system is activated during normal operation when an inadmissible movement state of the elevator car cabin braking device by a Beipporzugstoff connected to a release mechanism of the car brake device braked by a speed limiter is, whereby the release mechanism of the car brake device against a
  • Tripping resistance force of the trigger mechanism is actuated, wherein in the conduct of the test the Beipporzugstoff is connected via a test device with the trigger mechanism, which causes test device to overcome the tripping resistance force of the trigger mechanism a greater tensile force in Beskyrzugstoff than if the Beskyrzugstoff directly with the trigger mechanism connected is.
  • the solution of the problem in a test device for carrying out the method according to the first independent claim has a first power transmission point, via which the test device is connected to the Beipporzugstoff for carrying out the test, and a second power transmission point, via which the test device interacts with the tripping mechanism of the car brake device.
  • Checking means causes a greater tensile force in Beipporzugstoff is required to overcome the tripping resistance force of the trigger mechanism when the Beipporzugstoff when performing the test is not directly on the
  • the solution is essentially to use a test device for carrying out the test of the speed limitation system which causes the tractive force required to overcome the tripping resistance force of the tripping mechanism of the car brake device in the limiting traction means becomes.
  • a connection between the Beipporzugstoff and the release mechanism existing in normal operation is separated and the test device installed so that a first power transmission point of the test device is connected to the Beipporzugstoff and a second power transmission point of the tester with the Actuation mechanism cooperates.
  • the test device is in the conduct of the examination of the speed limiter, for example by an elevator mechanic caused to brake the Beipporzugstoff while the elevator car with the car brake device and the release mechanism is in motion, whereby the trigger mechanism of Cabin braking device and thus the cab brake device are operated by the Beipporzugstoff on the test device, if provided by the speed limiter in
  • Beipporzugstoff a traction means braking force is generated, which corresponds to at least the increased by the testing device, required to actuate the trigger mechanism in Beipporzugstoff tensile force. This can be provided with a cost-effective testing device in a simple and secure way, the evidence that the
  • the triggering mechanism of the car brake device comprises a pivotable about an axis of rotation trigger lever is deflected by acting on the triggering mechanism component of the tester against the tripping resistance force of the trigger mechanism from a normal position to actuate the car brake device.
  • the testing device comprises a deflection roller, wherein the rotation axis of the deflection roller connected to the Beipporzugstoff for performing the test and a flexible educazugstoff is guided over the deflection roller, wherein a first end of the strigzugstoffs with the release mechanism of Cabin brake device or is connected to the release lever of the release mechanism and a second end of the
  • Embodiment of the test method ensures easy handling, and the test device is inexpensive to produce and easy to transport.
  • the deflection roller of the test device is mounted in or on a Switzerlandstoffkupplung, which Switzerlandstoffkupplung is a device that connects both ends of Beskyrzugstoffs together and in normal operation, a connection between the Beskyrzugstoff and the Trigger lever of the release mechanism forms.
  • the test method can be carried out very easily and the test device requires minimal effort.
  • the test device comprises a test release lever which is pivotally mounted to perform the test in the vicinity of the release lever of the release mechanism, wherein the test release lever is connected instead of the release lever with the Beipporzugstoff and the Test triggering lever is brought directly or via a transmission member to cooperate with the release lever, that for deflecting the release lever against the tripping resistance force of the trigger mechanism a greater tensile force in Beskyrzugstoff is required when the Beskyrzugstoff is not directly connected to the release lever 12 of the trigger mechanism 11, but about the Test release lever acts on the release mechanism.
  • test-release lever instead of the release lever of the release mechanism with little effort can be performed.
  • the test device is as a transfer member between the test release lever and the release lever of the release mechanism, a transfer roller or a transfer pin or a
  • FIG. 1 shows a detail of an elevator installation in normal operation, comprising an elevator car with a car brake device and a release mechanism for actuating the car brake device. Shown is also a speed limit system with a speed limiter and a Beipporzugstoff over which the speed limiter acts on the release mechanism of the cabin brake device.
  • FIG. 2 shows an enlarged detail of the elevator installation according to FIG. 1 with a test device according to the invention installed according to a first embodiment for the purpose of testing the speed limitation system.
  • FIG. 3 shows an enlarged detail of the elevator installation according to FIG. 1 with a part of the car brake device and the tripping mechanism and with a test device according to the invention installed according to a second embodiment for testing the speed limit system.
  • FIG. 4 shows a side view of the detail according to FIG. 3.
  • FIG. 5 shows the section according to FIG. 3 from the elevator installation, with a test device according to the invention installed according to a third embodiment for testing the speed limitation system.
  • the elevator installation 1 shows a detail of an elevator installation 1 which is suitable for the application of the method according to the invention or of the test device according to the invention for testing a speed limitation system.
  • the elevator installation 1 comprises an elevator car 3 guided on guide rails 2 and a speed limitation system with a cabin brake device 4, a speed limiter 5, a flexible limiting means 6 and a traction mechanism 7.
  • the speed limiter 5 whose function has already been described above is provided by the flexible limiting means 6 whose ends are connected to one another via a Switzerlandstoffkupplung 7 to an endless Werschlaufe.
  • the Beegorzugstoff 6 is guided over a speed limiter 5 associated upper Beipporzugstoffrolle 8 and a lower Beipporzugstoffrolle 9.
  • the stretched portions of the Beipporzugstoffs 6 extend parallel to the movement of the elevator car 3.
  • One of the stretched portions of the Beipporzugstoffs 6 is coupled via the release lever 12 of the trigger mechanism 11 of the cab brake device 4 with the movement of the elevator car 3.
  • the arranged on the elevator car 3 and two brake units 10 comprehensive cabin brake device 4 is activated via the trigger mechanism 11, which includes a trigger lever 12. A deflection of the trigger lever 12 from its center position causes the two brake units 10 are brought into a state in which they cooperate with the guide rails 2, that the moving elevator car 3 is braked and then held.
  • the trigger lever 12 is pivotally connected to the cab brake device 4 and thus connected to the elevator car 3 and resiliently centered in its central position, wherein for deflecting the trigger lever 12 is a trigger resistance to overcome.
  • One end of the release lever 12 is by means of a bolt 13 with the Switzerlandstoffkupplung 7 of the
  • the Beipporzugstoff 9 is synchronized by the resiliently centered in its central position trigger lever 12 in synchronism with the movement of the
  • Elevator cab 3 moves.
  • an impermissible state of movement of the elevator car 3 occurs in the upward direction of travel and / or in the downward direction of travel, this impermissible state of movement is transmitted to the limiting traction means 6 and thus to the upper limiting traction means roller 8 assigned to the speed limiter 5.
  • the speed limiter 5 If the speed and / or the acceleration of the elevator car 3 exceeds a certain limit, this inadmissible state of motion is detected by the speed limiter 5, whereupon the speed limiter 5 blocks or decelerates the upper limiting pulley means 8 assigned to it or a traction mechanism brake directly associated with the limiting traction means 6 15 activated. This has the consequence that over the upper Beipporzugstoffrolle 8 ongoing
  • Beipporzugstoff 6 is braked while the elevator car 3 with the car brake device 4 and connected to the Beipporzugstoff 6 trigger lever 12 moves on. As a result, in the Beipporzugstoff 6 an am
  • Trigger lever 12 attacking tensile force constructed, which deflects the release lever of the trigger mechanism 11 of the cab brake device 4 against a tripping resistance force and thus the cab brake device 4 is actuated, provided that the condition is met by the blocked by the upper Beipporzugstoffrolle 8 or the activated traction mechanism brake 15 by friction on the Beipporzugstoff 6 transferable
  • FIG. 2 shows an enlarged detail of the elevator installation 1 according to FIG. 1, but with an installed testing device 20 suitable for carrying out the test method according to the invention in a first embodiment.
  • This testing device 20 comprises a deflection roller 21, the axis of rotation 22 is fixed to perform the test instead of the trigger lever 12 in the Switzerlandstoffkupplung 7, so that the guide roller 21 forms a first power transmission point of the test device 20, which first
  • test device 20 comprises a flexible sketchtamakingstoff 23, which is guided over the guide roller 21, wherein the one end of sketchkarstoffs 23 to the end of the release lever 12 of the trigger mechanism 11 of the cab brake device 4 is connected, so that this one end of educativestoffs 23 a second transmission of the
  • Test device forms which cooperates with the trigger mechanism 11 of the cab brake device 4.
  • the other end of the exczugschs is fixed to any fixed point 24 in the elevator system 1.
  • Cabin braking device 4 are activated. Otherwise, the Beipporzugstoff 6 will slip on the blocked Beipporzugstoffrolle 8 or in the activated traction mechanism brake 15 without deflecting the trigger lever 12 and to activate the cab brake device 4. In the latter case, the elevator system tested EN-81 is not met, which requires that the transferable from the speed limiter on the Beipporzugstoff 6 Anlagenstoffbremskraft with respect to the required for actuating the release mechanism of the cabin braking device in Beipporzugstoff 6 tensile force at least a safety factor of two got to.
  • test device 20 shown here is also applicable for testing provided for the upward direction of the elevator car 3 cabin braking by the mounted in the Switzerlandstoffkupplung 7 pulley 21 for the exczugstoff 23 below the trigger lever 12 to perform the test is positioned, the fürzugstoff 23 from the release lever 12 downwards out, 180 degrees around the guide roller 21 and then up to the fixed point 24 is performed.
  • the elevator car is caused to move upwards, which causes a deflection of the release lever 12 of the release mechanism 11 in the downward direction and thus the release of the provided for the upward direction of the elevator car 3 cabin brake device at sufficiently strong braked Beipporzugstoff.
  • FIG. 3 shows an enlarged detail of the elevator installation according to FIG. 1, with the cabin brake device 4 of the elevator car, the release mechanism 11 of the car brake device and the release lever 12 of the release mechanism. Shown is also an installed for carrying out the test method according to the invention Test device 30 in a second embodiment. 4 shows a side view of the detail of the elevator installation according to FIG. 3 with the components mentioned above in connection with FIG. 3 and the installed test device 30.
  • the test device 30 comprises a test release lever 31, which is fastened at its one end by means of a bolt-on bearing support 32 pivotally mounted in the region of the cabin brake device 4 on the elevator car. At its other end, the test release lever 31 is pivotally connected to the Werchupplung 7 of Beskyffens 6, with which Wergepplung in normal operation of the trigger lever 12 of the tripping mechanism 11 is connected. To perform the test, the Switzerlandstoffkupplung 7 is positioned so that the test release lever 31 is approximately parallel to
  • Trigger lever 12 of the trigger mechanism 11 is aligned.
  • a transmission member in the form of a transfer roller 33 is mounted laterally on the test release lever, which in the conduct of the test an upward movement of the test release lever 31 on the release lever 12 of the release mechanism 11th transfers.
  • the position of the transfer roller 33 on the test release lever 31 is selected so that for deflecting the release lever 12 against the tripping resistance force of the trigger mechanism 11 via the test release lever 31 by a desired factor greater traction in Beskyrzugstoff 6 is required if the Beskyrzugstoff not directly, but on the test release lever 31 acts on the release lever 12 of the trigger mechanism 11.
  • the position of the transfer roller i. H. the location of the power transmission between the test release lever 31 and the release lever 12, along the two release levers slidably.
  • Speed limiter associated traction mechanism 15 is activated (Fig. 1, 2), whereby a movement of the Beegorzugstoffs 6 is prevented with a limited traction braking force. Subsequently, the elevator car 3 and thus the test release lever 31 of the release mechanism 11- be caused, for example by driving the Aufzugantriebs- to perform a downward movement. As a result of this Downward movement of the test release lever 31 is formed in the braked Beipporzugstoff 6 a tensile force through which the test-release lever 31 and coupled to the test release lever on the transfer roller 33 release lever 12 of the
  • Trigger mechanism 11 are deflected against the tripping resistance force of the release mechanism upwards.
  • Beskyrzugstoff 6 a tensile force corresponding to a desired multiple of the tensile force that is required in normal operation with direct coupling between the Beipporzugstoff 6 and the release lever 12 of the release mechanism to overcome the tripping resistance force of the trigger mechanism 11.
  • d. H. for the activation of the cabin brake device 4 is thus a higher by a desired factor tensile force in Beskyrzugstoff 6 required when the Beskyrzugstoff acts in the performance of the test on the test device 30 described here on the release mechanism 11, as if the Beskyrzugstoff 6 in normal operation directly on the Tripping mechanism 11 and the trigger lever 12 acts.
  • the elevator standard EN-81 requires that the traction braking force transmitted by the speed limiter to the limiting traction means 6 must have at least a safety factor of two relative to the traction force required to actuate the tripping mechanism of the cabin braking device in the limiting traction means.
  • FIG. 5 again shows an enlarged detail of the elevator installation according to FIG. 1, with the cabin brake device 4, the triggering mechanism 11 of the car door system. braking device and the release lever 12 of the release mechanism. Also shown is a test device 40 installed in a third embodiment for carrying out the test method according to the invention.
  • the embodiment of the test device 40 according to FIG. 5 differs from the embodiment of the test device 30 described above in connection with FIGS. 3, 4 in that the force transmission between the test release lever 41 and the release lever 12 of the release mechanism 11 via a transmission member in shape an articulated lever 43 takes place.
  • the test device in the embodiment according to FIG. 5 has the advantage that the triggering lever 12 of the tripping mechanism 11 of the car brake device 4 can be deflected upwards as well as downwards with this test device.
  • This test device is therefore particularly easy to use for testing a cabin brake device, which can decelerate the elevator car in impermissible states of motion both in the downward direction and in the upward direction.

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Regulating Braking Force (AREA)

Abstract

L'invention concerne un procédé ou encore un dispositif de vérification destiné à vérifier un système de limitation de vitesse d'une installation d'ascenseur (1) selon lequel un dispositif de freinage de cabine (4) est activé lorsque survient un mouvement inadmissible d'une cabine d'ascenseur (3) quand le système de limitation de vitesse fonctionne normalement, du fait qu'un moyen de traction à limiteur (6) relié à un mécanisme de déclenchement (11) du dispositif de freinage de cabine (4) est freiné par un limiteur de vitesse (5), le mécanisme de déclenchement (11) du dispositif de freinage de cabine (4) étant actionné contre une force de résistance au déclenchement. Lorsque la vérification est effectuée, le moyen de traction à limiteur (6) est mis en liaison fonctionnelle avec le mécanisme de déclenchement (11) par l'intermédiaire d'un dispositif de vérification (20), ce dernier (20) ayant pour effet qu'une plus grande force de traction est nécessaire dans le moyen de traction à limiteur (6) pour surmonter la force de résistance au déclenchement du mécanisme de déclenchement (11) que lorsque le moyen de traction à limiteur (6) est directement relié au mécanisme de déclenchement (11).
EP20120707749 2011-03-09 2012-03-05 Procédé et dispositif de vérification pour vérifier un système de limitation de vitesse d'une installation d'ascenseur Active EP2683641B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20120707749 EP2683641B1 (fr) 2011-03-09 2012-03-05 Procédé et dispositif de vérification pour vérifier un système de limitation de vitesse d'une installation d'ascenseur

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11157410 2011-03-09
EP20120707749 EP2683641B1 (fr) 2011-03-09 2012-03-05 Procédé et dispositif de vérification pour vérifier un système de limitation de vitesse d'une installation d'ascenseur
PCT/EP2012/053755 WO2012119987A1 (fr) 2011-03-09 2012-03-05 Procédé et dispositif de vérification pour vérifier un système de limitation de vitesse d'une installation d'ascenseur

Publications (2)

Publication Number Publication Date
EP2683641A1 true EP2683641A1 (fr) 2014-01-15
EP2683641B1 EP2683641B1 (fr) 2015-05-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120707749 Active EP2683641B1 (fr) 2011-03-09 2012-03-05 Procédé et dispositif de vérification pour vérifier un système de limitation de vitesse d'une installation d'ascenseur

Country Status (5)

Country Link
US (1) US8720262B2 (fr)
EP (1) EP2683641B1 (fr)
CN (1) CN103415459B (fr)
BR (1) BR112013021886A2 (fr)
WO (1) WO2012119987A1 (fr)

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CN104390800B (zh) * 2014-11-14 2017-11-10 广州日滨科技发展有限公司 电梯限速器寿命测试装置及其测试方法
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Also Published As

Publication number Publication date
BR112013021886A2 (pt) 2016-11-01
EP2683641B1 (fr) 2015-05-20
CN103415459B (zh) 2015-11-25
US8720262B2 (en) 2014-05-13
CN103415459A (zh) 2013-11-27
US20120227479A1 (en) 2012-09-13
WO2012119987A1 (fr) 2012-09-13

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