EP1832540B1 - Measuring device for power transmission measurement - Google Patents

Measuring device for power transmission measurement Download PDF

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Publication number
EP1832540B1
EP1832540B1 EP07004760A EP07004760A EP1832540B1 EP 1832540 B1 EP1832540 B1 EP 1832540B1 EP 07004760 A EP07004760 A EP 07004760A EP 07004760 A EP07004760 A EP 07004760A EP 1832540 B1 EP1832540 B1 EP 1832540B1
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EP
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Prior art keywords
measuring device
force
cables
tested
cable
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German (de)
French (fr)
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EP1832540A1 (en
Inventor
Eberhard Frejno
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TUEV Rheinland Industrie Service GmbH
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TUEV Rheinland Industrie Service GmbH
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006Monitoring devices or performance analysers
    • B66B5/0037Performance analysers

Definitions

  • the present invention relates to a measuring device for a traction sheave elevator installation as well as a method for checking a traction of at least one traction cable of a traction sheave elevator installation.
  • Object of the present invention is to be able to realize amaschinends phenomenon a traction sheave elevator regardless of the available space without much effort.
  • a development of the fixing device has a mechanical clamping of at least one supporting cable.
  • the test cable to be tested can preferably be fixed relative to the measuring device.
  • one or more supporting cables adjacent to the supporting rope to be tested can be firmly fixed by means of the fixing device to the measuring device, in particular to the force transmission device.
  • the power transmission device has at least one mechanical clamping connection. By means of this at least one, in particular at least two or more carrying cables can be fixed.
  • An embodiment provides that the fixing device is part of the power transmission device.
  • a further embodiment which may preferably also be provided as an independent solution, has a measuring device which can be attached to supporting cables of the traction sheave elevator installation, with the following features: the force transmission device comprises a force generator which between the test cable to be tested and a supporting cables adjacent thereto Generates force that causes a relief of the test rope to be tested and a load on the adjacent suspension cables.
  • the suspension cables are mechanically non-positively and frictionally coupled with each other.
  • test device is connected to the measuring device in a repeatably detachable manner, the test device initiating an introduction of force for checking the carrying capacity in the measuring device.
  • the tester may be a portable computer running a measurement program.
  • the test apparatus may also be a test facility located far away, which can be connected to the measuring device. Such a connection is also possible in a wireless manner, for example as a bidirectional connection.
  • the measuring device is coupled to a test device which records one or more data characterizing at least one result of a traction test.
  • the test apparatus can also provide an evaluation of the recorded data, preferably also with a logging.
  • a method for measuring a traction of a traction cable of a traction sheave elevator, whereby a proportional cable force of a total load prevailing on the traction cables is transmitted by at least one of the traction cables to be examined to one or more adjacent carrier cables. This allows to observe the behavior of the test rope to be tested. From the reaction at the discharge can be concluded that the driving ability of at least the test cable to be tested.
  • a further embodiment provides that a transfer of a proportionate load takes place until a drive limit is reached. This is detected, for example, by the fact that there is no frictional connection and thus no frictional connection between the test cable to be tested and the support disk.
  • a force is mechanically impressed between the test cable to be tested and at least one adjacent carrying cable, wherein the test cable to be tested is relieved.
  • a force can be generated via a rotating spindle, via a hydraulic pressure transducer or via a spring tension.
  • a lever can be used.
  • two power sources can be arranged opposite to each other and cause a symmetrical force into the measuring device.
  • a development of the method provides that an automated introduction of force takes place after triggering of a measurement process. This makes it easier to understand how a force was impressed. In particular, this makes a measurement accurately repeatable, so that the data obtained from the system actually become comparable.
  • the sequence of the test procedure can preferably be preset, for example, via a setting of a time of the test, a force increase over a period of time, via an initiation of a steadily increasing test force or else via an introduction of different test force groups of different characteristics.
  • the measuring device can be attached to an existing elevator installation without having to remove or modify these or parts thereof.
  • the measuring device is dimensioned such that the operating principle can be used universally.
  • supporting cable shots of the measuring device can be variably arranged so as to take account of different distances between carrying cables of different elevator systems.
  • elements of the measuring device are variable, in particular differently positionable in the measuring device in order to be adapted to different elevator systems. It can be provided that individual Modules of the measuring device are exchanged, so that the measuring device is attachable.
  • the purpose of the measurement by means of the measuring device is to provide sufficient traction capability of the traction sheave connection as part of a traction measurement of a traction sheave elevator.
  • An existing frictional connection realizes a defined power transmission via the suspension cable - traction sheave - connection.
  • the capability testing can be carried out not only for a suspension cable but also for several suspension cables or for a complete system. For this purpose, for example, a single support cable tested and concluded on the overall system.
  • the cable force determination is made on one or more of the support cables by the proportionate cable force is transmitted in the examined rope in the total load on the other participating in the recording of the total load ropes, it can be concluded that the overall behavior. From the measured cable force, which, for example, the drive limit for the rope force ratio of this support rope when examined indicates only this support cable, or which indicates the driving limit of several ropes with simultaneous load transfer of rope loads of several suspension cables to the respective associated mittragenden suspension cables, can be immediately close to the traction of the overall connection.
  • a power transmission of the supporting cables takes place by means of mechanical clamping connections.
  • a measurement of the rope forces is preferably carried out on mechanical transmission elements.
  • Fig. 1 shows a first schematic embodiment of a measuring device 1 in a plan view, wherein a first support cable 2 is checked, while adjacent support cables 3 are mitumlant of the measuring device 1, to a load of the test cable 2 to be tested to take over.
  • the measuring device has a fastening device 4, which can preferably be opened and closed by pivoting via a hinge 5.
  • the fastening device 4 preferably has at least a first part 6 and a second part 7, which are separable from each other and can be joined together. Instead of the joint 5 more joints or other possibilities may be provided. Also, the first 6 and the second 7 part of the fastening device 4 can be completely separated from each other.
  • a hinge pin can be removed and replaced, for example for storage of the measuring device in a system case.
  • the fastening device 4 is such that a clamping force can be impressed on the supporting cables. For example, this can be effected by a corresponding closure of the first and the second part.
  • a clamping spindle 8 is provided as a closure. If this is rotated, the two parts 6, 7 can approach each other ever further. Due to the construction as a clamping spindle 8 can be applied either by motor or by hand, preferably using a lever, a required force or torque for closing and clamping.
  • Connected to the fastening device 4 is a power transmission device 9.
  • This has a load spindle axis 10 and a load spindle 11.
  • the load spindle 11 is arranged displaceably along the load spindle axis 10. As shown, the load spindle 11 is aligned with the test cable 2 to be tested. This makes it possible for the force which can be applied via the load spindle 11 to act on the carrying cable 2 to be tested.
  • Fig. 2 shows a sectional view through the measuring device Fig. 1 whereby the measuring device 1 and its structure in the area around the supporting rope 2 to be tested is shown in more detail. Shown are the first part 6 and the second part 7 of the fastening device 4. These two parts 6, 7 each have a clamping jaw 12. These serve as a fixing device 13 for the test cable 2 to be tested. Preferably, the other supporting cables are held in a stationary manner in the measuring device 1 via the fixing device 13. If all supporting cables are fixed in this way, a pair of clamping jaws is preferably provided for each carrying cable. Furthermore, a support rail 14 is provided.
  • a clamping jaw 12 in a specific region of the fixing device 13 relative to a part of the fastening device 4 can be provided.
  • the support traverse limits movement of the jaw 12.
  • Fig. 2 shown is the pair of jaws 12 that is associated with the test cable 2, in a rest position. It is held by a jaw lock 15 in the rest position. If the jaw lock would be opened, at least one of the two, preferably both jaws 12 would be movable and according to gravity move down.
  • the support cross 14 then serves as a support for at least one of the two jaws 12. As shown, however, a support cross 14 provided on both sides. A displaced from the rest position in a test position jaw 14 is indicated by dashed lines.
  • This jaw 12 is associated with a support rail 14, which is pivotally connected to a pressure lever 16.
  • the pressure lever 15 is in turn coupled to a pull lever 11. Preferably, these together form a rigid component.
  • a pressure on the pressure lever 15 can now be exercised.
  • the load spindle axis 10 serves as a pivot point about which the pressure lever 15 and the load lever 16 rotate.
  • the load spindle 11 is connected to a measuring device 17, by means of which the force to be applied, a path or another characterizing parameter which is meaningful for the drivability test, can be detected.
  • the measuring device 1 is now used as follows: An inspection and work routine begins with a selection of any supporting rope, which is determined as a measuring cable.
  • the load spindle 11 with measuring device 17 is moved for this purpose on the load spindle axis 10 to the measuring cable.
  • the jaw lock 15 of the jaw 12 associated with the measuring cable is unlocked.
  • the associated jaw 12 moves down until it comes to rest on the support rail 14.
  • the attachment of the fastening device 4 takes place on the support cables.
  • the opened mounting device 4 is pushed laterally over the support cables and closed by means of the clamping spindle 8.
  • the respective, not individually illustrated jaws put on the suspension cables.
  • the load transfer takes place successively from the measuring cable into the other carrying cables, preferably until the carrier cable drive pulley connection fails as a static friction connection.
  • the force then measured on the load spindle 11 is a measure of the driving ability of the overall connection.
  • one or more jaw bearings 18 are provided. Preferably, these are designed as sliding or roller bearings.
  • Fig. 3 shows a schematic view of an arrangement of a measuring device with four support cables 3 and one of them to be tested support cable 2.
  • the measuring device is able to cover all supporting cables of the traction sheave elevator. By selectively clamping as described above, each individual suspension rope can be checked one after the other.
  • the advantage here is a simultaneous examination of several supporting pages and thus a shortening of the examination time.
  • Fig. 4 shows a schematic view of a further embodiment and arrangement of a measuring device 1.
  • the measuring device 1 has a fastening device 4 for three of the five test cables to be tested. Basically, any number of three selected suspension cables can be taken into account, regardless of a total number of suspension cables. This allows a very lightweight design and facilitates handling of the measuring device 1 when mounting. If, for example, there are five carrying ropes and the measuring device comprises three carrying ropes, then three carrying ropes are tested in each case.
  • the measuring device is arranged so that there is an unchecked suspension rope between two tested suspension cables. By knowing the tested ropes can then be closed with knowledge of the overall behavior of the suspension ropes on the individual previously untreated suspension cable.
  • Fig. 5 a schematic diagram of a way to access a measuring device 1.
  • the arrows illustrate that the measuring device is not only in front before the suspension ropes attachable. This illustrates a first arrow. Due to the very narrow system, there is the possibility of attaching the measuring device 1 even with only lateral access to the support cables. This indicates a second arrow.
  • the measuring device 1 can therefore be used independently of the other constructional conditions in an elevator shaft or in the region of a drive plane, if access to the suspension cables is available.
  • Fig. 6 a further schematic view of another embodiment of a measuring device 1.
  • a clamping force generated for at least one supporting cable in particular also can be impressed.
  • Schematically represented via respective arrows A a force and direction of movement of the jaws 12 is shown.
  • Arrows B illustrate a directional vector of an example load registration mechanism.
  • a clamping force can be generated mechanically, for example by using a spindle 19.
  • the spindle 19 may also be a rack, in particular also another toothing present.
  • a transmission may be provided, the translation enables a fine transmission of the movement.
  • a clamping force can be carried out by an independent application of the jaws to one or more support cables due to a relative movement of the jaws to the support cable.
  • a power transmission can take place.
  • a further embodiment provides for a hydraulic and / or pneumatic actuation, indicated by an expansion cylinder 20.
  • one or more levers for force generation can be used, for example a lever, as described above in the prior art and on in the Reference is made to the scope of the disclosure.
  • Fig. 7 shows a further embodiment of a measuring device 1 in a schematic view.
  • two arbitrary support cables are selected and used for a measurement of a previously determined support cable. This is indicated by the arrows.
  • a test device 21 is also specified which, on the one hand, can initiate a measuring process, but on the other hand is able to record and further process measured data.
  • the test device 21 can be wired to the measuring device 1 or else coupled to the measuring device 1 via other transmission possibilities for exchanging data.

Landscapes

  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Control Of Stepping Motors (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

The measuring device (1) has a mounting device (4) for positioning multiple catenary wires (3). A fixing device for one of the catenary wire (2). A power transmission device (9) by which a proportionate load of a whole load is transferred to tested catenary wire (2) from one or more adjacent catenary wires (3). An independent claim is also included for the method for measurement of power transmission of catenary wire of traction sheave elevator system.

Description

Die vorliegende Erfindung betrifft eine Messvorrichtung für eine Treibscheibenaufzugsanlage wie auch ein Verfahren zur Überprüfung einer Treibfähigkeit von zumindest einem Tragseil einer Treibscheibenaufzugsanlage.The present invention relates to a measuring device for a traction sheave elevator installation as well as a method for checking a traction of at least one traction cable of a traction sheave elevator installation.

Aus dem Stand der Technik sind verschieden Systeme bekannt, mittels denen eine Treibfähigkeitsüberprüfung durchgeführt werden soll. Aus der WO 2004/103880 geht ein Prüfhebel hervor, in den ein Messsystem für die Treibfähigkeitsprüfung integriert ist. Aus der EP 0 390 972 B1 ist ein System bekannt, bei dem Bewegungsparameter einer Treibscheibenaufzugsanlage gemessen und daraus auf eine Treibfähigkeit der Anlage geschlossen wird. Aus der EP 0 573 432 B1 ist ein System bekannt, das mit einem beweglichen Bereich der Aufzugsanlage verbunden wird, Beschleunigungen während des Betriebes der Aufzugsanlage aufnimmt und darüber eine Ermittlung einer Treibfähigkeit erlauben soll. Aus der EP 0 391 174 B2 ist ein System bekannt, bei dem über einen Wegstreckenmessaufnehmer eine Treibfähigkeit und über einen Kraftmesssignalgeber eine Wirksamkeit einer Aufzugsbremse ermittelt werden soll. Aus der WO 2005/123561 geht ein Prüfhebelsystem mit einem Last- und einem Kraftarm hervor. Dieses weist ein Auflager zur Auflage des Prüfhebels auf, womit eine Entlastung eines oder mehrerer Tragseile erfolgen kann.Various systems are known from the prior art, by means of which a driving capability check is to be carried out. From the WO 2004/103880 A test lever emerges, in which a measuring system for the capability testing is integrated. From the EP 0 390 972 B1 a system is known, measured in the motion parameters of a traction sheave elevator and it is concluded that a drive capability of the system. From the EP 0 573 432 B1 For example, a system is known which is connected to a movable area of the elevator installation, receives accelerations during the operation of the elevator installation and is intended to permit a determination of a driving capability. From the EP 0 391 174 B2 a system is known in which a driving distance capability is to be determined via a distance measuring sensor and an effectiveness of an elevator brake is to be determined via a force measuring signal generator. From the WO 2005/123561 goes out a Prüfhebelsystem with a load and a power arm. This has a support for supporting the test lever, whereby a discharge of one or more support cables can be done.

Aufgabe der vorliegenden Erfindung ist es, eine Treibfähigkeitsprüfung einer Treibscheibenaufzugsanlage unabhängig vom zur Verfügung stehenden Bauraum ohne hohen Aufwand realisieren zu können.Object of the present invention is to be able to realize a Treibfähigkeitsprüfung a traction sheave elevator regardless of the available space without much effort.

Diese Aufgabe wird mit einer Messvorrichtung mit den Merkmalen des Anspruches 1 und mit einem Verfahren mit den Merkmalen des Anspruches 9 gelöst Vorteilhafte Weiterbildungen sind in den jeweiligen Unteransprüchen angegeben.This object is achieved with a measuring device having the features of claim 1 and with a method having the features of claim 9. Advantageous further developments are specified in the respective subclaims.

Es wird eine Messvorrichtung vorgeschlagen, die für eine Treibfähigkeitsmessung an einer Aufzugsanlage mit mehreren Tragseilen einsetzbar ist, bei der die Tragseile ein Gegengewicht mit einem Aufzugskorb, einer Kabine oder einer Plattform verbinden, wobei die Aufzugsseile sich über eine Treibscheibe erstrecken und eine kraftschlüssige Verbindung durch Reibschluss mit der Treibscheibe eingehen. Die Messvorrichtung weist

  • eine Befestigungseinrichtung zur Positionierung an zumindest mehreren Tragseilen,
  • eine Fixiervorrichtung für zumindest eines der Tragseile,
  • eine Kraftübertragungsvorrichtung, mittels der zumindest eine anteilige Last einer Gesamtlast an zumindest einem zu prüfenden Tragseil auf ein oder mehrere benachbarte Tragseile übertragbar ist, und
  • eine Messeinrichtung zur Bestimmung einer Treibfähigkeit anhand der anteiligen Last auf.
A measuring device is proposed, which can be used for a driving capability measurement on an elevator installation with a plurality of suspension cables, in which the suspension cables connect a counterweight to an elevator cage, a cabin or a platform, wherein the elevator cables extend over a traction sheave and a non-positive connection by frictional engagement enter with the traction sheave. The measuring device has
  • a fastening device for positioning on at least a plurality of supporting cables,
  • a fixing device for at least one of the support cables,
  • a power transmission device, by means of which at least a proportionate load of a total load on at least one test cable to be tested on one or more adjacent support cables is transferable, and
  • a measuring device for determining a driving ability on the basis of the proportionate load.

Eine Weiterbildung der Fixiervorrichtung hat eine mechanische Klemmung von zumindest einem Tragseil. Darüber lässt sich vorzugsweise das zu prüfende Tragseil relativ zu der Messvorrichtung fest positionieren. Es können auch ein oder mehrere zum zu prüfenden Tragseil benachbarte Tragseile mittels der Fixiervorrichtung vorzugsweise zu der Messvorrichtung, insbesondere zu der Kraftübertragungsvorrichtung fest positioniert werden. Beispielswiese weist die Kraftübertragungsvorrichtung zumindest eine mechanische Klemmverbindung auf. Mittels dieser ist zumindest ein, insbesondere zumindest zwei oder mehr Tragseile fixierbar. Eine Ausgestaltung sieht vor, dass die Fixiervorrichtung Bestandteil der Kraftübertragungsvorrichtung ist.A development of the fixing device has a mechanical clamping of at least one supporting cable. In addition, the test cable to be tested can preferably be fixed relative to the measuring device. It is also possible for one or more supporting cables adjacent to the supporting rope to be tested to be firmly fixed by means of the fixing device to the measuring device, in particular to the force transmission device. For example, the power transmission device has at least one mechanical clamping connection. By means of this at least one, in particular at least two or more carrying cables can be fixed. An embodiment provides that the fixing device is part of the power transmission device.

Eine weitere Ausgestaltung, die vorzugsweise auch als eine eigenständige Lösung vorgesehen sein kann, weist eine Messvorrichtung auf, die an Tragseilen der Treibscheibenaufzugsanlage anbringbar ist, mit den folgenden Merkmalen: die Kraftübertragungsvorrichtung umfasst einen Krafterzeuger, der zwischen dem zu prüfenden Tragseil und dazu benachbarten Tragseilen eine Kraft generiert, die eine Entlastung des zu prüfenden Tragseils und eine Belastung der benachbarten Tragseile bewirkt. Zur Kraftübertragung sind die Tragseile mechanisch kraft- und reibschlüssig miteinander gekoppelt.A further embodiment, which may preferably also be provided as an independent solution, has a measuring device which can be attached to supporting cables of the traction sheave elevator installation, with the following features: the force transmission device comprises a force generator which between the test cable to be tested and a supporting cables adjacent thereto Generates force that causes a relief of the test rope to be tested and a load on the adjacent suspension cables. For power transmission, the suspension cables are mechanically non-positively and frictionally coupled with each other.

Insbesondere umfasst zumindest eine der Messvorrichtungen eine Messeinrichtung, die einen Kraftaufnehmer umfasst, der vorzugsweise eine Be- oder Entlastung des zu prüfenden Tragseils misst. Die verwendeten Messprinzipien der Messeinrichtung sind beispielsweise

  • Messung des Federweges eines mechanischen Druck- oder Zugfederelementes,
  • Messung mittels Drehwinkelmessverfahren,
  • Messung mittels Kraftmessdose,
  • Messung mittels eines elektrischen Drucksensors,
  • Messung mittels eines Dehnmessstreifens und/oder
  • Messung mittels Piezokristall.
In particular, at least one of the measuring devices comprises a measuring device, which comprises a load cell, which preferably measures loading or unloading of the test rope to be tested. The measuring principles of the measuring device used are, for example
  • Measurement of the spring travel of a mechanical pressure or tension spring element,
  • Measurement by means of rotational angle measuring methods,
  • Measurement by means of a load cell,
  • Measurement by means of an electrical pressure sensor,
  • Measurement by means of a strain gauge and / or
  • Measurement by means of piezocrystal.

Es besteht die Möglichkeit, mehrere dieser Messprinzipien miteinander zu kombinieren, entweder in getrennten Messeinrichtungen oder auch in einer einzigen Messeinrichtung. Neben der Messung der Be- oder Entlastung an dem zu prüfenden Tragseil besteht durch eine andere Anordnung des Messaufnehmers auch die Möglichkeit, eine andere Kraft zu messen, aus der auf die Treibfähigkeit des Tragseils geschlossen werden kann.It is possible to combine several of these measuring principles, either in separate measuring devices or in a single measuring device. In addition to the measurement of loading or unloading of the test rope to be tested is by another arrangement of the sensor and the ability to measure another force from which the traction of the support cable can be concluded.

Eine Weiterbildung sieht vor, dass an die Messvorrichtung eine Prüfvorrichtung wiederholbar abnehmbar angeschlossen ist, wobei die Prüfvorrichtung eine Initiierung einer Krafteinleitung zur Überprüfung der Tragfähigkeit in die Messvorrichtung bewirkt. Die Prüfvorrichtung kann ein tragbarer Computer sein, der ein Messprogramm ablaufen lässt. Die Prüfvorrichtung kann jedoch ebenfalls eine weit entfernt vorgesehene Prüfwarte sein, die mit der Messvorrichtung verbindbar ist. Ein derartige Verbindung ist auch auf drahtlose Weise, beispielsweise als bidirektionale Verbindung möglich.A further development provides that a test device is connected to the measuring device in a repeatably detachable manner, the test device initiating an introduction of force for checking the carrying capacity in the measuring device. The tester may be a portable computer running a measurement program. However, the test apparatus may also be a test facility located far away, which can be connected to the measuring device. Such a connection is also possible in a wireless manner, for example as a bidirectional connection.

Bevorzugt ist es, wenn die Messvorrichtung mit einer Prüfvorrichtung gekoppelt ist, die ein oder mehrere Daten aufnimmt, die zumindest ein Ergebnis einer Treibfähigkeitsprüfung charakterisieren. Insbesondere kann die Prüfvorrichtung auch eine Auswertung der aufgenommenen Daten zur Verfügung stellen, vorzugsweise auch mit einer Protokollierung.It is preferred if the measuring device is coupled to a test device which records one or more data characterizing at least one result of a traction test. In particular, the test apparatus can also provide an evaluation of the recorded data, preferably also with a logging.

Gemäß einem weiteren Gedanken der Erfindung wird ein Verfahren zum Messen einer Treibfähigkeit eines Tragseils einer Treibscheibenaufzugsanlage zur Verfügung gestellt, wobei eine anteilige Seilkraft einer an den Tragseilen herrschenden Gesamtlast von zumindest einem der zu untersuchenden Tragseile auf ein oder mehrere benachbarte Tragseile übertragen wird. Dieses erlaubt das Verhalten des zu prüfenden Tragseils beobachten zu können. Aus der Reaktion bei der Entlastung kann auf die Treibfähigkeit von zumindest dem zu prüfenden Tragseil geschlossen werden. Eine Weiterbildung sieht vor, dass eine Übertragung einer anteiligen Last bis zum Erreichen einer Treibfähigkeitsgrenze erfolgt. Dieses wird beispielsweise dadurch detektiert, dass keine reibschlüssige Verbindung und damit kein Kraftschluss mehr zwischen dem zu prüfenden Tragseil und der Tragscheibe besteht. Dieses kann zum Beispiel über eine Detektoreinheit überwacht werden, die an der Aufzugsanlage anbringbar ist. Stellt diese eine Relativbewegung fest, d.h. rutscht das Tragseil auch nur minimalst, ist eine Grenze überschritten und eine Auswertung hinsichtlich der Beurteilung dieses Grenzwertes wird ermöglicht.According to a further aspect of the invention, a method is provided for measuring a traction of a traction cable of a traction sheave elevator, whereby a proportional cable force of a total load prevailing on the traction cables is transmitted by at least one of the traction cables to be examined to one or more adjacent carrier cables. This allows to observe the behavior of the test rope to be tested. From the reaction at the discharge can be concluded that the driving ability of at least the test cable to be tested. A further embodiment provides that a transfer of a proportionate load takes place until a drive limit is reached. This is detected, for example, by the fact that there is no frictional connection and thus no frictional connection between the test cable to be tested and the support disk. This can be monitored, for example, via a detector unit which can be attached to the elevator installation. If this detects a relative movement, that is, if the suspension cable slips even minimally, a limit is exceeded and an evaluation with regard to the assessment of this limit value is made possible.

Vorzugsweise wird eine Kraft mechanisch zwischen dem zu prüfenden Tragseil und zumindest einem benachbarten Tragseil aufgeprägt, wobei das zu prüfende Tragseil entlastet wird. Hierzu kann eine Kraft über eine sich drehende Spindel, über einen hydraulischen Druckgeber oder auch über eine Federspannung erzeugt werden. Auch kann ein Hebel dazu eingesetzt werden.Preferably, a force is mechanically impressed between the test cable to be tested and at least one adjacent carrying cable, wherein the test cable to be tested is relieved. For this purpose, a force can be generated via a rotating spindle, via a hydraulic pressure transducer or via a spring tension. Also, a lever can be used.

Neben einer einzelnen Kraftquelle besteht die Möglichkeit, zwei oder mehr Kraftquellen gleichzeitig in der Messvorrichtung einzusetzen. Dazu können beispielsweise zwei Kraftquellen einander gegenüberliegend angeordnet sein und eine symmetrische Krafteinleitung in die Messvorrichtung bewirken.In addition to a single power source, it is possible to use two or more power sources simultaneously in the measuring device. For this example, two power sources can be arranged opposite to each other and cause a symmetrical force into the measuring device.

Eine Weiterbildung des Verfahrens sieht vor, dass nach Auslösen eines Messvorganges eine automatisierte Krafteinleitung erfolgt. Dieses erleichtert das Nachvollziehen, wie eine Kraft aufgeprägt wurde. Insbesondere wird dadurch eine Messung genau wiederholbar, so dass die gewonnenen Daten der Anlage tatsächlich miteinander vergleichbar werden. Der Ablauf des Prüfvorganges kann vorzugsweise voreingestellt werden, beispielsweise über eine Einstellung einer Zeit der Prüfung, eines Kraftanstieges über eine Zeit, über eine Einleitung einer stetig steigenden Prüfkraft oder auch über eine Einleitung verschiedener Prüfkraftkollektive unterschiedlicher Ausprägung.A development of the method provides that an automated introduction of force takes place after triggering of a measurement process. This makes it easier to understand how a force was impressed. In particular, this makes a measurement accurately repeatable, so that the data obtained from the system actually become comparable. The sequence of the test procedure can preferably be preset, for example, via a setting of a time of the test, a force increase over a period of time, via an initiation of a steadily increasing test force or else via an introduction of different test force groups of different characteristics.

Mit den vorgeschlagenen Messvorrichtungen wie auch mit dem Messverfahren wird eine sichere, wiederholbare und dadurch nachvollziehbare Messung an Tragseilen von Aufzugsanlagen mit Treibscheibenantrieb ermöglicht.With the proposed measuring devices as well as with the measuring method, a safe, repeatable and therefore traceable measurement on suspension ropes of elevator systems with traction sheave drive is made possible.

Besonders bevorzugt ist es, eine Messung so vorzunehmen, dass für diesen Vorgang die Aufzugsanlage weder demontiert oder anderweitig verändert wird. Beispielsweise kann die Messvorrichtung an eine bestehende Aufzugsanlage angebracht werden, ohne dass diese oder Teile davon abgenommen oder verändert werden müssen. Insbesondere ist die Messvorrichtung derart dimensioniert, dass das Funktionsprinzip universell einsetzbar ist. Beispielswiese können Tragseilaufnahmen der Messvorrichtung variabel anordbar sein, um damit verschiedenen Abständen zwischen Tragseilen verschiedener Aufzugsanlagen Rechnung zu tragen. Vorzugsweise sind Elemente der Messvorrichtung veränderlich, insbesondere in der Messvorrichtung unterschiedlich positionierbar, um an verschiedene Aufzugsanlagen angepasst zu werden. Hierbei kann es vorgesehen sein, dass einzelne Module der Messvorrichtung auszutauschen sind, damit die Messvorrichtung anbringbar ist.It is particularly preferred to carry out a measurement such that the elevator installation is neither dismantled nor otherwise changed for this process. For example, the measuring device can be attached to an existing elevator installation without having to remove or modify these or parts thereof. In particular, the measuring device is dimensioned such that the operating principle can be used universally. For example, supporting cable shots of the measuring device can be variably arranged so as to take account of different distances between carrying cables of different elevator systems. Preferably, elements of the measuring device are variable, in particular differently positionable in the measuring device in order to be adapted to different elevator systems. It can be provided that individual Modules of the measuring device are exchanged, so that the measuring device is attachable.

Die Messung mittels der Messvorrichtung hat zum Ziel, im Rahmen einer Treibfähigkeitsmessung einer Treibscheibenaufzugsanlage den Nachweis ausreichender Treibfähigkeit der Tragseil- Treibscheibe - Verbindung zu erbringen. Durch Verwirklichung des mechanisch- technischen Messprinzip, die Seilkräfte in den Tragseilen zu bestimmen, bei denen ein Verlust der reibschlüssigen Verbindung des Systems Tragseil - Treibscheibe eintritt, erlaubt eine universelle Anwendung des Systems.The purpose of the measurement by means of the measuring device is to provide sufficient traction capability of the traction sheave connection as part of a traction measurement of a traction sheave elevator. By implementing the mechanical measuring principle to determine the rope forces in the suspension cables, in which a loss of frictional connection of the system suspension rope - traction sheave, allows a universal application of the system.

Bei einer automatischen Auswertung der Messung kann das technische Prinzip des Treibscheibenantriebs durch eine Nutzung der Eytelweinsche Gleichung genutzt werden. Diese gibt an, dass die Treibfähigkeit eines Tragseil - Treibscheibe - Systems abhängig von nachstehend aufgeführten Parametern ist:

  • Seilkraftverhältnis als Variable, an der konkreten Anlage wählbar
  • Treibscheibendurchmesser
  • Seilrillengeometrie
  • Umschlingungswinkel
  • Seilmachart.
In an automatic evaluation of the measurement, the technical principle of the traction sheave drive can be used by using the equation Eytelwein. This indicates that the traction of a traction sheave system depends on the following parameters:
  • Rope force ratio as a variable, selectable at the concrete plant
  • Drive wheel diameter
  • Rope groove geometry
  • Wrap angle
  • Resistant rope.

Ein vorhandener Reibschluss realisiert eine definierte Kraftübertragung über die Tragseil - Treibscheibe - Verbindung. Darüber kann die Treibfähigkeitsprüfung nicht nur für ein Tragseil sondern auch für mehrere Tragseile bzw. für eine Gesamtanlage ausgeführt werden. Hierzu kann beispielsweise ein einzelnes Tragseil geprüft und daraus auf die Gesamtanlage geschlossen werden.An existing frictional connection realizes a defined power transmission via the suspension cable - traction sheave - connection. In addition, the capability testing can be carried out not only for a suspension cable but also for several suspension cables or for a complete system. For this purpose, for example, a single support cable tested and concluded on the overall system.

Beispiel einer möglichen Überprüfung sind wie folgt :

  • Messung der Seilkraft von einem Tragseil (Wahl der Seile beliebig) und rechnerischer Rückschluss auf die Gesamtverbindung
  • Messung der Seilkraft von mehreren Tragseilen (Wahl der Seile beliebig) und Rückschluss auf die Gesamtverbindung
Example of a possible check are as follows:
  • Measurement of the cable force of a suspension rope (choice of ropes arbitrary) and computational inference on the overall connection
  • Measurement of the cable force of several suspension ropes (choice of ropes arbitrary) and inference to the overall connection

Da die Seilkraftermittlung an einem oder mehreren der Tragseile vorgenommen wird, indem die anteilige Seilkraft in dem untersuchten Seil an der Gesamtlast auf die anderen an der Aufnahme der Gesamtlast beteiligten Seile übertragen wird, kann daraus auf das Gesamtverhalten geschlossen werden. Aus der gemessenen Seilkraft, welche beispielsweise die Treibfähigkeitsgrenze für das Seilkraftverhältnis dieses Tragseiles bei Untersuchung nur dieses Tragseils angibt, oder welche die Treibfähigkeitsgrenze von mehreren Tragseilen bei gleichzeitiger Lastumlagerung der Seillasten von mehreren Tragseilen an die jeweils zugehörigen mittragenden Tragseile angibt, lässt sich unmittelbar auf die Treibfähigkeit der Gesamtverbindung schließen. Insbesondere bei mehreren Tragseilen, die geprüft werden, erfolgt eine Kraftübertragung der Tragseile untereinander durch mechanische Klemmverbindungen. Eine Messung der Seilkräfte wird vorzugsweise an mechanischen Übertragungselementen vorgenommen.Since the cable force determination is made on one or more of the support cables by the proportionate cable force is transmitted in the examined rope in the total load on the other participating in the recording of the total load ropes, it can be concluded that the overall behavior. From the measured cable force, which, for example, the drive limit for the rope force ratio of this support rope when examined indicates only this support cable, or which indicates the driving limit of several ropes with simultaneous load transfer of rope loads of several suspension cables to the respective associated mittragenden suspension cables, can be immediately close to the traction of the overall connection. In particular, in the case of a plurality of supporting cables which are tested, a power transmission of the supporting cables takes place by means of mechanical clamping connections. A measurement of the rope forces is preferably carried out on mechanical transmission elements.

Die folgenden Zeichnungen zeigen weitere Merkmale der vorliegenden Erfindung. Diese Merkmale sind jedoch nicht beschränkend auf die einzelnen Ausgestaltungen zu verstehen oder auszulegen. Vielmehr sind ein oder mehrere der Merkmale auch mit anderen Merkmalen anderer Ausgestaltungen, auch aus obiger Beschreibung, zu Weiterbildungen verknüpfbar. Es zeigen:

Fig. 1
eine erste schematische Ausgestaltung einer Messvorrichtung in einer Aufsicht, wobei ein Tragseil überprüft wird, während benachbarte Tragseile von der Messvorrichtung mitumfasst sind, um eine Traglast des zu prüfenden Tragseiles zu übernehmen,
Fig. 2
eine Schnittansicht durch die Messvorrichtung aus Fig. 1,
Fig. 3
eine schematische Ansicht einer Anordnung einer Messvorrichtung bei vier Tragseilen und einem davon zu prüfenden Tragseil,
Fig. 4
eine schematische Ansicht einer weiteren Anordnung einer Messvorrichtung,
Fig. 5
eine Prinzipskizze einer Aufbringung von Kräften über eine Messvorrichtung,
Fig. 6
eine weitere schematische Ansicht einer anderen Ausgestaltung einer Messvorrichtung, und
Fig. 7
eine schematische Ansicht einer weiteren Messvorrichtung.
The following drawings show further features of the present invention. However, these features are not intended to be limiting or construed to the individual embodiments. Rather, one or more of the features with other features of other embodiments, also from the above description, can be linked to further developments. Show it:
Fig. 1
a first schematic embodiment of a measuring device in a plan view, wherein a support cable is checked, while adjacent support cables are encompassed by the measuring device in order to take on a load of the test rope to be tested,
Fig. 2
a sectional view through the measuring device Fig. 1 .
Fig. 3
a schematic view of an arrangement of a measuring device in four suspension cables and one of them to be tested suspension rope,
Fig. 4
a schematic view of another arrangement of a measuring device,
Fig. 5
a schematic diagram of an application of forces via a measuring device,
Fig. 6
a further schematic view of another embodiment of a measuring device, and
Fig. 7
a schematic view of another measuring device.

Fig. 1 zeigt eine erste schematische Ausgestaltung einer Messvorrichtung 1 in einer Aufsicht, wobei ein erstes Tragseil 2 überprüft wird, während benachbarte Tragseile 3 von der Messvorrichtung 1 mitumfasst sind, um eine Traglast des zu prüfenden Tragseiles 2 zu übernehmen. Die Messvorrichtung weist eine Befestigungseinrichtung 4 auf, die vorzugsweise über ein Gelenk 5 durch Schwenken geöffnet wie auch geschlossen werden kann. Die Befestigungsvorrichtung 4 weist vorzugsweise zumindest einen ersten Teil 6 und einen zweiten Teil 7 auf, die voneinander trennbar und miteinander zusammenfügbar sind. Anstatt des Gelenkes 5 können mehrere Gelenke oder andere Möglichkeiten vorgesehen sein. Auch können der erste 6 und der zweite 7 Teil der Befestigungsvorrichtung 4 vollständig voneinander trennbar sein. Beispielsweise kann ein Gelenkbolzen entnommen und wiedereingesetzt werden, beispielsweise für eine Lagerung der Messvorrichtung in einem Systemkoffer. Die Befestigungseinrichtung 4 ist derart, dass eine Klemmkraft auf die Tragseile aufgeprägt werden kann. Beispielsweise kann dieses durch einen entsprechenden Verschluss des ersten und des zweiten Teils bewirkt werden. Bei der dargestellten Ausgestaltung der Messvorrichtung ist als Verschluss eine Klemmspindel 8 vorgesehen. Wird diese gedreht, können die beiden Teile 6, 7 sich einander immer weiter nähern. Durch den Aufbau als Klemmspindel 8 kann entweder motorisch oder händisch, vorzugsweise unter Nutzung eines Hebels, eine benötigte Kraft bzw. ein Drehmoment zum Schließen und Klemmen aufgebracht werden. Mit der Befestigungseinrichtung 4 verbunden ist eine Kraftübertragungsvorrichtung 9. Diese weist eine Lastspindelachse 10 sowie eine Lastspindel 11 auf. Die Lastspindel 11 ist entlang der Lastspindelachse 10 verschieblich angeordnet. So wie dargestellt, wird die Lastspindel 11 mit dem zu prüfenden Tragseil 2 ausgerichtet. Dieses ermöglicht, dass die über die Lastspindel 11 aufbringbare Kraft auf das zu prüfende Tragseil 2 einwirkt. Fig. 1 shows a first schematic embodiment of a measuring device 1 in a plan view, wherein a first support cable 2 is checked, while adjacent support cables 3 are mitumfasst of the measuring device 1, to a load of the test cable 2 to be tested to take over. The measuring device has a fastening device 4, which can preferably be opened and closed by pivoting via a hinge 5. The fastening device 4 preferably has at least a first part 6 and a second part 7, which are separable from each other and can be joined together. Instead of the joint 5 more joints or other possibilities may be provided. Also, the first 6 and the second 7 part of the fastening device 4 can be completely separated from each other. For example, a hinge pin can be removed and replaced, for example for storage of the measuring device in a system case. The fastening device 4 is such that a clamping force can be impressed on the supporting cables. For example, this can be effected by a corresponding closure of the first and the second part. In the illustrated embodiment of the measuring device, a clamping spindle 8 is provided as a closure. If this is rotated, the two parts 6, 7 can approach each other ever further. Due to the construction as a clamping spindle 8 can be applied either by motor or by hand, preferably using a lever, a required force or torque for closing and clamping. Connected to the fastening device 4 is a power transmission device 9. This has a load spindle axis 10 and a load spindle 11. The load spindle 11 is arranged displaceably along the load spindle axis 10. As shown, the load spindle 11 is aligned with the test cable 2 to be tested. This makes it possible for the force which can be applied via the load spindle 11 to act on the carrying cable 2 to be tested.

Fig. 2 zeigt eine Schnittansicht durch die Messvorrichtung aus Fig. 1, wodurch die Messvorrichtung 1 und ihr Aufbau im Bereich um das zu prüfende Tragseil 2 näher dargestellt ist. Dargestellt sind der erste Teil 6 und der zweite Teil 7 der Befestigungseinrichtung 4. Diese beiden Teile 6, 7 weisen jeweils eine Klemmbacke 12 auf. Diese dienen als Fixiervorrichtung 13 für das zu prüfende Tragseil 2. Vorzugsweise sind auch die anderen Tragseile über die Fixiervorrichtung 13 ortsfest in der Messvorrichtung 1 gehalten. Sofern alle Tragseile derartig fixiert werden, ist vorzugsweise für jedes Tragseil ein Paar Klemmbacken vorgesehen. Weiterhin ist eine Tragtraverse 14 vorgesehen. Mittels dieser kann eine Bewegung einer Klemmbacke 12 in einem bestimmten Bereich der Fixiervorrichtung 13 relativ zu einem Teil der Befestigungseinrichtung 4 vorgesehen werden. Vorzugsweise begrenzt die Tragtraverse eine Bewegung der Klemmbacke 12. So wie in Fig. 2 dargestellt, befindet sich das Paar an Klemmbacken 12, dass dem zu prüfenden Tragseil 2 zugeordnet ist, in einer Ruhestellung. Es wird durch eine Klammbackenverriegelung 15 in der Ruhestellung gehalten. Würde die Klemmbackenverriegelung geöffnet werden, würde zumindest eine der beiden, vorzugsweise beide Klemmbacken 12 beweglich werden und entsprechend der Erdanziehung sich nach unten bewegen. Die Tragtraverse 14 dient dann als Auflager für zumindest eine der beiden Klemmbacken 12. So wie dargestellt ist, jedoch beidseitig eine Tragtraverse 14 vorgesehen. Eine aus der Ruheposition in eine Prüfposition versetzte Klemmbacke 14 ist gestrichelt angedeutet. Diese Klemmbacke 12 ist eine Tragtraverse 14 zugeordnet, die gelenkig mit einem Druckhebel 16 verbunden ist. Der Druckhebel 15 ist wiederum mit einem Zughebel 11 gekoppelt. Vorzugsweise bilden diese zusammen ein starres Bauteil. Über die Lastspindel 11 kann nun ein Druck auf den Druckhebel 15 ausgeübt werden. Die Lastspindelachse 10 dient als Angelpunkt, um den der Druckhebel 15 und der Lasthebel 16 sich drehen. Die Lastspindel 11 ist mit einer Messeinrichtung 17 verbunden, über die die aufzubringende Kraft, ein Weg oder ein sonstiger, für die Treibfähigkeitsprüfung aussagefähiger, charakterisierender Parameter erfasst werden kann. Fig. 2 shows a sectional view through the measuring device Fig. 1 whereby the measuring device 1 and its structure in the area around the supporting rope 2 to be tested is shown in more detail. Shown are the first part 6 and the second part 7 of the fastening device 4. These two parts 6, 7 each have a clamping jaw 12. These serve as a fixing device 13 for the test cable 2 to be tested. Preferably, the other supporting cables are held in a stationary manner in the measuring device 1 via the fixing device 13. If all supporting cables are fixed in this way, a pair of clamping jaws is preferably provided for each carrying cable. Furthermore, a support rail 14 is provided. By means of this, movement of a clamping jaw 12 in a specific region of the fixing device 13 relative to a part of the fastening device 4 can be provided. Preferably, the support traverse limits movement of the jaw 12. As in Fig. 2 shown, is the pair of jaws 12 that is associated with the test cable 2, in a rest position. It is held by a jaw lock 15 in the rest position. If the jaw lock would be opened, at least one of the two, preferably both jaws 12 would be movable and according to gravity move down. The support cross 14 then serves as a support for at least one of the two jaws 12. As shown, however, a support cross 14 provided on both sides. A displaced from the rest position in a test position jaw 14 is indicated by dashed lines. This jaw 12 is associated with a support rail 14, which is pivotally connected to a pressure lever 16. The pressure lever 15 is in turn coupled to a pull lever 11. Preferably, these together form a rigid component. About the load spindle 11, a pressure on the pressure lever 15 can now be exercised. The load spindle axis 10 serves as a pivot point about which the pressure lever 15 and the load lever 16 rotate. The load spindle 11 is connected to a measuring device 17, by means of which the force to be applied, a path or another characterizing parameter which is meaningful for the drivability test, can be detected.

Die Messvorrichtung 1 wird nun wie folgt eingesetzt: Ein Prüfungs- und Arbeitsablauf beginnt mit einer Auswahl eines beliebigen Tragseils, das als ein Messseil bestimmt wird. Die Lastspindel 11 mit Messeinrichtung 17 wird zu diesem Zweck auf der Lastspindelachse 10 zum Messseil hin verschoben. Die Klemmbackenverriegelung 15 der zum Messseil gehörigen Klemmbacke 12 wird entriegelt. Damit bewegt sich die zugehörige Klemmbacke 12 nach unten bis es zur Auflage auf der Tragtraverse 14 kommt. Danach erfolgt das Anlegen der Befestigungseinrichtung 4 an die Tragseile. Dazu wird die geöffnete Befestigungsweinrichtung 4 seitlich über die Tragseile geschoben und mittels der Klemmspindel 8 verschlossen. Dabei legen sich die jeweiligen, nicht einzeln dargestellten Klemmbacken an die Tragseile an. Durch Anziehen der Lastspindel 11 mit Messeinrichtung erfolgt sukzessive die Lastumlagerung aus dem Messseil in die übrigen Tragseile, vorzugsweise so lange, bis die Tragseil-Treibscheiben-Verbindung als Haftreibverbindung versagt. Die dann an der Lastspindel 11 gemessene Kraft ist ein Maß für die Treibfähigkeit der Gesamtverbindung. Um eine Entlastung des zu prüfenden Tragseils durch eine Kraftübertragung mittels der Klemmbacken 12 über ein Relativbewegung zu den Tragtraversen 14 zu ermöglichen, sind ein oder mehrere Klemmbackenlager 18 vorgesehen. Vorzugsweise sind diese als Gleit- oder Wälzlager ausgebildet.The measuring device 1 is now used as follows: An inspection and work routine begins with a selection of any supporting rope, which is determined as a measuring cable. The load spindle 11 with measuring device 17 is moved for this purpose on the load spindle axis 10 to the measuring cable. The jaw lock 15 of the jaw 12 associated with the measuring cable is unlocked. Thus, the associated jaw 12 moves down until it comes to rest on the support rail 14. Thereafter, the attachment of the fastening device 4 takes place on the support cables. For this purpose, the opened mounting device 4 is pushed laterally over the support cables and closed by means of the clamping spindle 8. The respective, not individually illustrated jaws put on the suspension cables. By tightening the load spindle 11 with measuring device, the load transfer takes place successively from the measuring cable into the other carrying cables, preferably until the carrier cable drive pulley connection fails as a static friction connection. The force then measured on the load spindle 11 is a measure of the driving ability of the overall connection. In order to enable relief of the test cable to be tested by a force transmission by means of the jaws 12 via a relative movement to the support brackets 14, one or more jaw bearings 18 are provided. Preferably, these are designed as sliding or roller bearings.

Fig. 3 zeigt eine schematische Ansicht einer Anordnung einer Messvorrichtung bei vier Tragseilen 3 und einem davon zu prüfenden Tragseil 2. Dabei handelt es sich um eine Variation beispielsweise der Messvorrichtung 1, wie sie aus Fig. 1 hervorgeht. Die Messvorrichtung ist in der Lage, sämtliche Tragseile der Treibscheibenaufzugsanlage zu umfassen. Durch wahlweise Klemmung wie oben beschrieben, kann jedes einzelnes Tragseil nacheinander geprüft werden. Es besteht auch die Möglichkeit, von der Prüfung von einem oder zwei Tragseilen auf die Treibfähigkeit der Gesamtheit der noch nicht einzeln geprüften Tragseile oder, je nach Anzahl und Position der geprüften Tragseile, auf ein einzelnes Tragseil schließen zu können. Bei der Messung besteht die Möglichkeit, die aufzubringende Lastumverteilung langsam wie auch schnell, insbesondere auch sprunghaft aufbringen zu können. Insbesondere können auch anstatt einem zwei Tragseile gleichzeitig geprüft werden. Vorteil hierbei ist eine zeitgleiche Untersuchung von mehreren Tragseiten und damit eine Verkürzung der Prüfungszeit. Fig. 3 shows a schematic view of an arrangement of a measuring device with four support cables 3 and one of them to be tested support cable 2. This is a variation, for example, the measuring device 1, as they are made Fig. 1 evident. The measuring device is able to cover all supporting cables of the traction sheave elevator. By selectively clamping as described above, each individual suspension rope can be checked one after the other. There is also the possibility of examining one or two suspension ropes on the traction of the entirety of the not yet individually tested suspension cables or, depending on the number and position of the tested suspension cables to close on a single suspension cable. During the measurement, it is possible to apply the load redistribution to be applied slowly as well as quickly, in particular also suddenly. In particular, it is also possible to test two ropes at the same time instead of one. The advantage here is a simultaneous examination of several supporting pages and thus a shortening of the examination time.

Fig. 4 zeigt eine schematische Ansicht einer weiteren Ausgestaltung und Anordnung einer Messvorrichtung 1. Die Messvorrichtung 1 weist eine Befestigungsvorrichtung 4 für drei der fünf zu prüfenden Tragseile auf. Grundsätzlich können drei beliebig gewählte Tragseile berücksichtigt werden, unabhängig von einer Gesamtzahl der Tragseile. Dieses erlaubt eine sehr leichte Bauweise und erleichtert ein Handling der Messvorrichtung 1 beim Anbringen. Sind beispielsweise fünf Tragseile vorhanden und die Messvorrichtung umfasst drei Tragseile, so werden drei Tragseile jeweils geprüft. Die Messvorrichtung wird hierbei so angeordnet, dass sich ein ungeprüftes Tragseil zwischen zwei geprüften Tragseilen ergibt. Durch eine Kenntnis der geprüften Tragseile kann sodann bei Kenntnis des Gesamtverhaltens der Tragseile auf das einzelne bisher ungeprüfte Tragseil geschlossen werden. Fig. 4 shows a schematic view of a further embodiment and arrangement of a measuring device 1. The measuring device 1 has a fastening device 4 for three of the five test cables to be tested. Basically, any number of three selected suspension cables can be taken into account, regardless of a total number of suspension cables. This allows a very lightweight design and facilitates handling of the measuring device 1 when mounting. If, for example, there are five carrying ropes and the measuring device comprises three carrying ropes, then three carrying ropes are tested in each case. The measuring device is arranged so that there is an unchecked suspension rope between two tested suspension cables. By knowing the tested ropes can then be closed with knowledge of the overall behavior of the suspension ropes on the individual previously untreated suspension cable.

Fig. 5 eine Prinzipskizze einer Zugangsmöglichkeit zu einer Messvorrichtung 1. Die Pfeile verdeutlichen, dass die Messvorrichtung nicht nur in Front vor den Tragseilen anbringbar ist. Dieses verdeutlicht ein erste Pfeil. Aufgrund des sehr schmal bauenden Systems besteht die Möglichkeit einer Anbringung der Messvorrichtung 1 auch bei einem nur seitlichen Zugang zu den Tragseilen. Dieses deutet ein zweiter Pfeil an. Die Messvorrichtung 1 ist daher unabhängig von den übrigen baulichen Gegebenheiten in einem Aufzugsschacht oder im Bereich einer Antriebsebene einsetzbar, sofern ein Zugang zu den Tragseilen vorhanden ist. Fig. 5 a schematic diagram of a way to access a measuring device 1. The arrows illustrate that the measuring device is not only in front before the suspension ropes attachable. This illustrates a first arrow. Due to the very narrow system, there is the possibility of attaching the measuring device 1 even with only lateral access to the support cables. This indicates a second arrow. The measuring device 1 can therefore be used independently of the other constructional conditions in an elevator shaft or in the region of a drive plane, if access to the suspension cables is available.

Fig. 6 eine weitere schematische Ansicht einer anderen Ausgestaltung einer Messvorrichtung 1. Hierbei sind verschiedene Möglichkeiten dargestellt, wie eine Klemmkraft für zumindest ein Tragseil erzeugt, insbesondere auch aufgeprägt werden kann. Schematisch dargestellt ist über jeweilige Pfeile A eine Kraft- und Bewegungsrichtung der Klemmbacken 12 dargestellt. Über Pfeile B ist ein Richtungsvektor einer beispielhaften Lasteintragungsmechanik dargestellt. Gemäß einer Ausgestaltung kann eine Klemmkraft mechanisch erzeugt werden, zum Beispiel durch Einsatz einer Spindel 19. Anstelle der Spindel 19 kann auch eine Zahnstange, insbesondere auch eine andere Verzahnung vorliegen. Fig. 6 a further schematic view of another embodiment of a measuring device 1. Here, various possibilities are shown how a clamping force generated for at least one supporting cable, in particular also can be impressed. Schematically represented via respective arrows A a force and direction of movement of the jaws 12 is shown. Arrows B illustrate a directional vector of an example load registration mechanism. According to one embodiment, a clamping force can be generated mechanically, for example by using a spindle 19. Instead of the spindle 19 may also be a rack, in particular also another toothing present.

Beispielsweise kann ein Getriebe vorgesehen sein, dessen Übersetzung eine Feinübertragung der Bewegung ermöglich. Zum anderen kann eine Klemmkraft durch ein selbständiges Anlegen der Klemmbacken an ein oder mehrere Tragseile infolge einer Relativbewegung der Klemmbacken zum Tragseil erfolgen. Durch eine Geometrie, die beispielsweise ein Verkanten ermöglicht, kann eine Kraftübertragung stattfinden. Eine weitere Ausgestaltung sieht eine hydraulische und/oder pneumatische Betätigung vor, angedeutet durch einen Expansionszylinder 20. Des Weiteren können auch ein oder mehrere Hebel zur Krafterzeugung eingesetzt werden, zum Beispiel ein Hebel, wie er oben im Stand der Technik beschrieben ist und auf den im Rahmen der Offenbarung verwiesen wird.For example, a transmission may be provided, the translation enables a fine transmission of the movement. On the other hand, a clamping force can be carried out by an independent application of the jaws to one or more support cables due to a relative movement of the jaws to the support cable. By a geometry that allows, for example, tilting, a power transmission can take place. A further embodiment provides for a hydraulic and / or pneumatic actuation, indicated by an expansion cylinder 20. Furthermore, one or more levers for force generation can be used, for example a lever, as described above in the prior art and on in the Reference is made to the scope of the disclosure.

Fig. 7 zeigt eine weitere Ausgestaltung einer Messvorrichtung 1 in schematischer Ansicht. Hierbei werden zwei beliebige Tragseile ausgewählt und für einen Messvorgang eines vorab bestimmten Tragseiles genutzt. Dieses ist durch die Pfeile angedeutet. Auch hier ist die Möglichkeit eines parallelen Zuganges gegeben, wie es gemäß Fig. 5 schon aufgezeigt wurde. Beispielhaft ist auch eine Prüfvorrichtung 21 angegeben, die einerseits einen Messvorgang initiieren kann, andererseits in der Lage ist, Messdaten aufzunehmen und weiterverarbeiten zu können. Die Prüfvorrichtung 21 kann mit der Messvorrichtung 1 verkabelt oder auch über andere Übertragungsmöglichkeiten zum Austausch von Daten mit der Messvorrichtung 1 gekoppelt sein. Fig. 7 shows a further embodiment of a measuring device 1 in a schematic view. Here, two arbitrary support cables are selected and used for a measurement of a previously determined support cable. This is indicated by the arrows. Again, the possibility of a parallel access is given, as in accordance with Fig. 5 has already been shown. By way of example, a test device 21 is also specified which, on the one hand, can initiate a measuring process, but on the other hand is able to record and further process measured data. The test device 21 can be wired to the measuring device 1 or else coupled to the measuring device 1 via other transmission possibilities for exchanging data.

Claims (12)

  1. A measuring device (1) for measuring traction at a lift installation having a plurality of supporting cables (3) connecting a counterweight to a lift cage, a car or a platform, wherein the lift cables extend over a traction sheave and assume a non-positive-locking connection with the traction sheave through a frictional connection, wherein the measuring device (1)
    - has a securing device (4) for positioning on at least a plurality of supporting cables (3), and
    - has a fixing device (13) for at least one of the supporting cables (2),
    - characterised in that it has a force transmission device (9) by means of which at least a proportionate load of a total load at at least one supporting cable (2) to be tested can be transmitted to one or a plurality of adjacent supporting cables (3), and
    - a measuring device (17) for determining traction with the aid of the proportionate load.
  2. A measuring device (1) according to claim 1, characterised in that the fixing device (13) enables mechanical clamping of at least one supporting cable (2).
  3. A measuring device (1) according to claim 1 or 2, characterised in that the force transmission device (9) comprises at least one mechanical clamping connection.
  4. A measuring device (1) according to claim 3, characterised in that the fixing device (13) is a constituent of the force transmission device (9).
  5. A measuring device (1) according to any one of the preceding claims, characterised in that the force transmission device (9) comprises a force generator which generates, between the supporting cable (2) to be tested and adjacent supporting cables (3), a force bringing about unloading of the supporting cable (2) to be tested and loading of the adjacent supporting cables (3).
  6. A measuring device (1) according to any one of the preceding claims, characterised in that the measuring device (17) comprises a force sensor which measures loading or unloading of the supporting cable (2) to be tested.
  7. A measuring device (1) according to any one of the preceding claims, characterised in that a test device is connectable to the measuring device so as to be repeatedly removable, wherein the test device brings about initiation of an introduction of force for traction checking into the measuring device (1).
  8. A measuring device (1) according to any one of the preceding claims, characterised in that a test device is coupled with the measuring device and receives a datum or a plurality of data characterising at least one result of traction testing.
  9. A method of measuring traction of a supporting cable of a traction sheave lift installation having a measuring device according to any one of claims 1 to 8, wherein a proportionate cable force of a total load prevailing at the supporting cables is transmitted from at least one of the supporting cables (3) to be tested to one or a plurality of adjacent supporting cables (3).
  10. A method according to claim 9, characterised in that transmission of a proportionate load takes place until a traction threshold is reached.
  11. A method according to claim 9 or 10, characterised in that a force is applied mechanically between the supporting cable (2) to be tested and at least one adjacent supporting cable (3), wherein the supporting cable (2) to be tested is unloaded.
  12. A method according to claim 9, 10 or 11, characterised in that an automatic introduction of force takes place after initiation of a measuring process.
EP07004760A 2006-03-09 2007-03-08 Measuring device for power transmission measurement Active EP1832540B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006011395.0A DE102006011395B4 (en) 2006-03-09 2006-03-09 Measuring device for a driving capability measurement

Publications (2)

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EP1832540A1 EP1832540A1 (en) 2007-09-12
EP1832540B1 true EP1832540B1 (en) 2010-05-19

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AT (1) ATE468295T1 (en)
DE (2) DE102006011395B4 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009028596A1 (en) 2009-08-17 2011-03-03 Dekra Testing & Inspection Gmbh Proper operational characteristics e.g. traction characteristics, testing method for lift, involves measuring change of distance between lift cage and fixed measurement point in lift shaft mine opening for determining characteristic values
DE102009026992A1 (en) 2009-06-17 2010-12-30 Dekra Testing & Inspection Gmbh Proper operational characteristics e.g. traction characteristics, testing method for lift, involves measuring change of distance between lift cage and fixed measurement point in lift shaft mine opening for determining characteristic values
DE102009001055A1 (en) 2009-02-20 2010-09-02 Dekra Testing & Inspection Gmbh Proper operational characteristics e.g. traction characteristics, testing method for lift, involves measuring change of distance between lift cage and fixed measurement point in lift shaft mine opening for determining characteristic values
EP2650245B1 (en) 2009-02-20 2015-09-02 DEKRA e.V. Method and assembly for testing that a lift is functioning correctly
US9599467B2 (en) 2011-12-15 2017-03-21 Dekra E.V. (Eingetragener Verein) Method and arrangement for testing the proper functionality of an elevator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8904375U1 (en) * 1989-04-07 1989-07-27 TÜV Bayern e.V., 8000 München Device for recording physical parameters of an elevator
DE3911391C5 (en) * 1989-04-07 2010-04-29 TÃœV SÃœD Industrie Service GmbH Method and device for checking the driving ability
DE9015495U1 (en) * 1990-11-12 1992-01-02 Technischer Überwachungs-Verein Bayern e.V., 8000 München Transducer for recording physical parameters of a passenger and/or freight elevator
DE10323175A1 (en) * 2003-05-22 2004-12-23 TÃœV Industrie Service GmbH - TÃœV Rheinland Group test lever
DE102004029133A1 (en) * 2004-06-17 2006-01-05 TÃœV Industrie Service GmbH - TÃœV Rheinland Group Force-reduced measuring method for traction drives, in particular traction sheave drives of elevators

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EP1832540A1 (en) 2007-09-12
DE102006011395B4 (en) 2014-12-31
ATE468295T1 (en) 2010-06-15
DE102006011395A1 (en) 2007-09-13
DE502007003815D1 (en) 2010-07-01

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