EP3947233A1 - Détermination de l'état d'un moyen de suspension - Google Patents

Détermination de l'état d'un moyen de suspension

Info

Publication number
EP3947233A1
EP3947233A1 EP20710179.1A EP20710179A EP3947233A1 EP 3947233 A1 EP3947233 A1 EP 3947233A1 EP 20710179 A EP20710179 A EP 20710179A EP 3947233 A1 EP3947233 A1 EP 3947233A1
Authority
EP
European Patent Office
Prior art keywords
segment
markings
suspension element
load
segments
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
EP20710179.1A
Other languages
German (de)
English (en)
Other versions
EP3947233B1 (fr
Inventor
Florian Dold
Volker Zapf
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
Publication of EP3947233A1 publication Critical patent/EP3947233A1/fr
Application granted granted Critical
Publication of EP3947233B1 publication Critical patent/EP3947233B1/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
    • B66B7/00—Other common features of elevators
    • B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
    • B66B7/1207—Checking means
    • B66B7/1215—Checking means specially adapted for ropes or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
    • B66B3/002—Indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
    • B66B7/1207—Checking means
    • B66B7/1215—Checking means specially adapted for ropes or cables
    • B66B7/1238—Checking means specially adapted for ropes or cables by optical techniques

Definitions

  • the invention relates to a method for monitoring the physical condition of a suspension element, a device for carrying out the method and a
  • Elevators or elevator systems have an elevator cabin for accommodating people and / or objects, as well as a drive with a traction sheave and usually a suspension element.
  • the suspension element is connected to the elevator car and guided over the traction sheave so that the drive can move the elevator car.
  • the suspension means is also with a
  • suspension element guide variants are also possible.
  • power transmission options such as are known, for example, from cable pulls.
  • an elevator system can also have several suspension elements that are guided parallel to one another.
  • a suspension element of the aforementioned type can be a load-bearing tension member made from steel wire strands, aramid fibers or carbon fibers or a cable made, which optionally has a plastic sheath. But it can also be a
  • Be elevator belt which is usually made of polyurethane and has load-bearing tension members in its interior, which are made of steel wire strands, aramid fiber bundles and / or carbon fiber bundles.
  • the suspension element is divided into segments by markings.
  • the markings can be replaced by a
  • Detection device are detected so that a change in length of the individual segments can be measured.
  • the changes in length of the individual segments are then compared with a limit value. As soon as one of the segments has reached the limit value, the suspension element must be replaced.
  • the point in time at which the suspension element is replaced often also referred to as the readiness for discard, is no longer made dependent on the operating hours, but on the actual status of the
  • the proposed method assumes that the change in length must always be determined with the same load, for example when traveling with the empty elevator car. Such empty trips provided for measuring purposes limit the availability of the elevator system.
  • the measured change in length also includes setting of the wire strands or
  • the object of the present invention is therefore to determine the discard status even more precisely from the state of the suspension element without restricting availability.
  • the support means has markings along its length which can be detected by means of a detection device.
  • the markings can be on the Surface of the suspension element can be applied, for example, by color printing or by thermal processes such as laser burn-in processes.
  • the markings can in particular be designed as points, horizontal lines, matrix codes, bar codes and the like.
  • the markings can also be of a different nature, such as, for example, RFID tags and the like arranged in the interior of the suspension element.
  • the detection device is matched to the marking used and can be a laser scanner, an RFID reader, a camera and the like.
  • the expansion difference of the suspension element is monitored segment by segment.
  • the elongation difference is determined by using a signal processing unit to determine a first elongation for a first load and a second elongation for a second load from a distance between two selected markings detected by the detection direction, and the elastic behavior of the two elongations
  • the expansion difference representing segments is calculated.
  • a load measuring device is provided by means of which the load acting on the suspension element between the two selected markings can be measured.
  • the use of the expansion difference as a criterion for determining the discarding point is based on the knowledge that, in addition to the setting effects, there is an additional change in length when individual wire strands or fibers are broken or subject to wear and the load-bearing cross-section of the suspension element is reduced. This reduction leads to a changed elastic behavior of the suspension element segment in that it becomes more flexible or “softer”. In other words, the expansion difference of a segment changes or increases
  • Suspension means Since the measurements to determine the expansion difference can be carried out independently of a specified load by detecting the acting load, the determination of the expansion difference is possible at any point in time and thus during the normal operation possible.
  • the calculated expansion difference can then be compared with an expansion difference limit value. If the expansion difference of a segment is equal to or greater than the expansion difference limit value, the signal processing unit preferably sends an alarm signal to a control unit of the elevator system and / or to an output unit in order, for example, to fix the elevator system and / or to indicate the required replacement of the suspension element.
  • a cross-sectional loss of the load-bearing cross-section can be calculated from the expansion difference and this can be compared with a limit value for the maximum permissible cross-sectional loss, or a breaking load loss can be calculated from the expansion difference and compared with a limit value for the maximum permissible breaking load loss.
  • Signal processing unit for example, by extrapolating older, determined strain difference, cross-sectional loss, or breaking load loss values and the currently determined values, the remaining service life of the suspension element in use can be calculated. The replacement of the
  • Plan suspension means in terms of predictive maintenance planning for both the operator and the maintenance company.
  • the expansion differences of the individual segments can be compared with one another and a hierarchy of the segments with regard to their expansion difference can be created.
  • the segments can be selected analogously to this hierarchy, so that the expansion difference of segments with an already increased expansion difference is determined and compared with the expansion difference limit value more frequently than of segments with an unchanged expansion difference.
  • there can be a random algorithm according to which segments with previously unchanged or slightly changed expansion differences and their expansion differences are selected at random be determined.
  • the markings are arranged on the suspension element, they can also
  • a detectability criterion with regard to the detectability of the markings can be present. If a marking does not meet this detectability criterion and is therefore not or difficult to read, the next readable marking can be selected by the detection device or the signal processing unit.
  • Strains of the segment are measured at different loads and stored as the force / strain curve representing the strain difference in the new state.
  • the expansion difference of the individual segments can then periodically be compared with the expansion difference assigned in each case
  • Cross-sectional loss of the load-bearing cross-section of this segment is calculated and the result is transmitted to an output unit.
  • this structure logically the Contains elevator system with the suspension element to be monitored.
  • the signal processing unit is set up to process the
  • Load measuring device is determined and a measured load acting on the suspension element is determined and an expansion difference representing the elastic behavior is calculated from the two expansions.
  • the signal processing unit has a corresponding one for this purpose
  • Signal processing unit a segment and accordingly two markings can be selected according to predetermined criteria. This selection can be transmitted to the detection device, which then detects the distance between the two selected markings.
  • An optical system is preferably used here and the length of the segments is selected so that at least two markings can be detected at the same time.
  • the detection time difference of the two selected markings and the speed or the speed profile of the suspension element relative to the detection device can also be detected and calculated in order to determine the correct distance between the two markings or the elongation of the segment.
  • each marking advantageously has a marking which can be clearly distinguished from the other markings.
  • the two selected markings are preferably arranged one after the other on the suspension element and delimit the segment whose expansion difference is to be calculated. It is also possible, however, for further markings arranged on the suspension element to be present between the two selected markings which delimit the segment. If these two selected markings can no longer be detected simultaneously by the detection device, the length of the segment, as mentioned above, must be calculated from the detection time and the speed.
  • the device described above can be a permanent, permanent component of an elevator system.
  • the aforementioned device is only temporarily installed in an elevator system in order to be able to more precisely estimate the emerging end of the service life and to be able to better plan the upcoming replacement.
  • an existing system can also be retrofitted with the device described.
  • the elevator system includes an updated digital double data record that contains the physical components of the elevator system in digital form as interconnected and interacting component model data records with characterizing properties.
  • the signal processing unit is set up to exchange data with the updated digital double data record.
  • the data transmitted by the signal processing unit to the updated digital double data record can include the expansion differences of segments, which can be transferred as characterizing properties to assigned virtual segments of a support means of the updated digital double data record, which is mapped as a digital component model data record.
  • segments which can be transferred as characterizing properties to assigned virtual segments of a support means of the updated digital double data record, which is mapped as a digital component model data record.
  • Simulation results with further data of the updated digital double data set are processed by the output unit and displayed as a three-dimensional virtual representation on a screen.
  • Such a representation can also be dynamic, which means that in the virtual representation of the
  • Elevator system can move three-dimensionally represented component model data sets analogously to the physical elevator system and dynamically change their physical
  • Figure 1 schematically an elevator installation with an inventive
  • FIG. 3 a diagram with the force-elongation curves on which the invention is based, the first curve being the difference in elongation of a segment when new and the second curve being the difference in elongation of the same segment upon reaching the
  • ADTD updated digital double data record
  • Signal processing unit can exchange data.
  • FIG. 1 schematically shows an elevator installation 1 which is arranged in an elevator shaft 3 of a structure 5.
  • the elevator system 1 connects several floors 7, 9 of the structure 5 in the vertical direction and is used to transport people and / or objects.
  • the elevator installation 1 has an elevator car 11, a drive 13 with a
  • a device 21 according to the invention is arranged in the elevator installation 1, which has a support means 23, a detection device 29, a
  • Signal processing unit 31 and a load measuring device 33 comprises.
  • Carbon fiber ropes or belts with tension members used.
  • a tension member can be any tension member.
  • Steel strands, aramid fiber bundles or carbon fiber bundles enclosed by a polyurethane cover, can be arranged inside the belt.
  • the markings 25 shown in FIG. 1 are arranged along the length of the suspension element 23 and shown as small projections. In order not to impair driving comfort, the markings 25 are preferably not formed protruding, but rather applied to the surface of the suspension element 23, for example by color printing or by thermal processes such as laser burn-in processes. Breakthroughs or depressions arranged transversely to the longitudinal extension in the support means 23 could also serve as markings.
  • the markings 25 can be designed as points, horizontal lines, matrix codes, bar codes and the like.
  • the markings 25 can, however, also be of a different nature, such as, for example, RFID tags and the like arranged in the interior of the suspension element.
  • the detection device 29 is matched to the markings 25 used and can be a laser scanner, an RFID reader, a camera and the like, so that the markings 25 can be detected without any problems. As shown in FIG. 1, several markings 25 can be detected simultaneously by the detection device 29. This has the decisive advantage that at least the distance between two adjacently arranged markings 25 and thus the segment length L of the segment S defined by the detectable markings 25 can be obtained directly from the
  • Detection device 29 can be determined and the speed of the support means 23 passing by the detection device 29 does not have to be detected in order to calculate the segment length L of the segment S between the two markings 25 using the speed and the detection time.
  • the suspension element guide variant shown in FIG. 1 shows a suspension element 23, the two ends of which are connected to the structure 5 via suspension element end connections 35 and which is guided over the traction sheave 15 and over pulleys 19 of the counterweight 17 and the elevator car 11. From this it can be clearly seen which
  • the suspension element 23 is exposed to alternating bending loads during the operation of the elevator installation 1.
  • the suspension element 23 is loaded with high tensile forces by the elevator car 11 and the counterweight 17. Since the elevator car 11 and the counterweight 17 are accelerated and braked again in both vertical directions, the tensile force is also superimposed by an increasing tensile force.
  • the tensile force or load acting on the support means 23 can be determined by means of the
  • the load measuring device 33 and the detection device 29 are connected to the Signal processing unit 31 via those shown with a dash-dotted line
  • the state of the suspension element 23 can be monitored with an elevator installation 1 which has a corresponding device 21.
  • the values calculated in this way for the expansion difference, the loss of cross-section or the loss of breaking load can then be compared with a corresponding limit value. If these calculated values of a segment S are equal to or greater than the corresponding limit value, the signal processing unit 31 can send an alarm signal to a control unit 45 of the elevator system 1 and / or wired or wirelessly to an output unit 47 via a signal line 43 in order to trigger further actions , such as fixing the elevator system 1 and / or indicating the necessary replacement of the suspension element 23.
  • FIGS. 2A to 2C show, in one possible embodiment, the same section of a suspension element 23 divided into segments Si, S2, S n by means of markings 25 A, 25B, 25C in different stages.
  • Each of the markings 25A, 25B, 25C is a matrix code printed on the material of the suspension element 23, which is a unique,
  • the markings 25A, 25B, 25C delimit the segments Si, S2, S n, the segment boundaries 41 being defined by the lower edges of the markings 25A, 25B, 25C in the present exemplary embodiment.
  • the middle, the upper edge could each have a specific centering point
  • Marking 25A, 25B, 25C or other clearly identifiable properties of the marking 25A, 25B, 25C can be used to define the segment boundary 41.
  • S n selected markings 25A, 25B, 25C preferably arranged one after the other on the support means 23 and delimit the segment Si, S2, S n thereof
  • Expansion difference AF (see Figure 3) is to be calculated.
  • these are the segment Si with the segment length Li and the segment S2 with the Segment length L2.
  • Detection device 29 can be detected.
  • the illegible mark 25A, 25B, 25C can be skipped and the next mark 25A, 25B, 25C selected.
  • the middle of the three shown markings 25B is illegible for the detection device 29, so that it is skipped and another marking 25B arranged on the support means 23 is present between the two selected markings 25A, 25C that delimit the segment S3.
  • this newly defined segment S3 has the segment length L3. Provided that these two selected markings 25 A, 25 C no longer simultaneously through the
  • Detection device 29 can be detected, the segment length L3 of the
  • Segments S3, as mentioned above, can be calculated from the acquisition time of the two markings 25A, 25C and the speed of the suspension element 23.
  • FIG. 2A shows a section of the suspension element 23 in a brand new, unloaded state, so that the segments Si, S2 have the segment lengths Li, L2 created by the printing of the markings 25A, 25B, 25C exhibit.
  • FIG. 2B shows the same section as FIG. 2A, also in the new condition, but for example under the load FN, which corresponds, for example, to the maximum permissible load or maximum permissible loading of the elevator car 11.
  • the suspension element 23 is stretched so that the segment Si has the segment length Li + F NSI and the segment S2 has the segment length L2 + F NS 2.
  • FIG. 2C shows the same section as FIG. 2B under the same load FN, but after long use of the suspension element 23, when it has reached the end of its service life or is ready for discard.
  • the segment length Li + R + F ABSI of the first segment Si has increased by at least the setting effects R for the same load F N.
  • the setting effects R of the segment S1 alone do not lead to discard, as this is essentially due to the irreversible alignment of the tension members under load and / or due to irreversible or permanent extensions due to rolling effects on the
  • Deflection rollers are caused and the load-bearing cross section of the suspension element 23 is not significantly reduced as a result.
  • the length portion of the expansion when FABSI is ready for discard can differ from the length portion of the expansion when it is new, FNSI.
  • this can only be determined if the pure length component of the setting effects R were known.
  • this cannot be determined in isolation from the elongation.
  • the segment S2 also has setting effects R, so that it is the segment length
  • FIG. 3 shows a diagram with the force-elongation curves DNEU, DAB and Dsi on which the invention is based.
  • the first force-strain curve DNEU represents the difference in elongation A £ NEW of a segment Si, S2, S n when new and the second force-elongation curve D AB is the difference in elongation A £ AB of a segment Si, S2, S n when it is ready for discard.
  • the elongation £ of a segment Si, S2, S n is plotted on the ordinate of the diagram as a percentage of the original segment length Li, L2, L n and the load F acting in the segment Si, S2, S n or on the suspension element 23 is plotted on the abscissa.
  • the diagram shown clearly shows that the setting effects R have no influence on the monitoring of the state of the suspension element 23.
  • the setting effects R are a pure offset between the two force-strain curves DNEU, DAB.
  • Signal processing unit 31 from a distance or the segment length Li, L2, L n between two selected ones detected by the detection direction 29
  • Markings 25 a first elongation £ 1 with a first load F 1 and a second elongation £ 2 with a second load F2 is determined and from the two elongations £ i, £ 2 an elongation difference
  • a £ representing the elastic behavior is calculated according to the following general formula :
  • ANEU cross-sectional area of the load-bearing cross-section of the suspension element in
  • the loss of cross section DA or loss of breaking load AF B ch can be compared with defined limit values for the maximum permissible loss of cross section DA limit or the maximum permissible loss of breaking load AFs ch limit . When these limit values are reached, the discard is also reached.
  • the use of the expansion difference AF as a criterion for determining the discard status is based on the knowledge that in addition to the setting effects R, an additional change in length occurs when individual wire strands or fibers of the load-bearing cross section of a suspension element 23 are broken and the load-bearing cross section of the suspension element 23 is reduced as a result .
  • This reduction leads to a changed elastic behavior of the segment Si, S 2 , S n , which has been weakened by fractures and wear, in that it becomes more flexible or "softer".
  • the expansion difference AF of a segment Si, S 2 , S n which has broken wire strands or broken fibers changes or increases. It can be seen here that the most important criterion for determining the
  • Discard is used, namely the reduction of the load-bearing cross-section of the suspension element 23. Since the measurements for determining the expansion difference AF can be made independently of a specified load Fi, F 2 by detecting the acting load Fi, F 2, the determination of the expansion difference AF possible at any time and thus during normal operation of the elevator system 1.
  • the two loads Fi, F 2 should logically be different and the measurements should preferably take place with the elevator car 11 traveling in the same direction.
  • the loads Fi, F 2 acting between the two selected markings 25 during the expansion measurements on the suspension element 23, the one shown in FIG. 1 is used
  • Load measuring device 33 is provided.
  • the remaining service life of the suspension element 23 in use can be calculated in the signal processing unit 31, for example by extrapolating older, determined expansion difference values AF and the most recent expansion difference values AF will. By means of this remaining service life plan the replacement of the suspension element 23 in the sense of predictive maintenance planning for both the operator and the maintenance company.
  • the suspension element 23 actually used is analyzed in its new condition.
  • an expansion difference in the new condition AFNEU of each segment Si, S2, S n can be measured and stored by measuring several expansions of the segment Si, S2, S n at different loads Fi, F 2 in the new condition and as the Strain difference in the new state AFNEU representing force / strain curve is stored.
  • the expansion difference of the individual segments Si, S2, S n can then be compared periodically with the respectively assigned expansion difference in the new condition AFNEU.
  • FIG. 4 shows in more detail in a three-dimensional view the elevator installation 1 of FIG. 1 with a device 21 according to the invention.
  • the elevator installation 1 of FIG. 4 there are clearly three suspension elements 23A, 23B, 23C which are arranged parallel to one another belong to the device 21. Due to different setting effects, dynamic load differences, friction and the like, not all three suspension elements 23A, 23B, 23C are equally loaded, that is to say are subjected to the same load.
  • each of the three suspension elements 23A, 23B, 23C has one Load measuring devices 33A, 33B, 33C, which also belong to the device 21, are assigned.
  • Detection device 29 of device 21 can detect the markings, not shown, of all three suspension elements 23A, 23B, 23C.
  • a particularly precise monitoring of the state of the suspension element can be achieved if the elevator system 1 includes an updated digital double data record 101 which includes the physical components of the elevator system 1 in digital form as interconnected and interacting component model data records
  • the signal processing unit 31 of the device 21, as shown by the double arrow 161, is set up to include the updated digital doppelganger data set 101 to exchange data 131.
  • the updated digital double data record 101 depicting the elevator installation 1 is referred to as ADDD 101 in the following for reasons of better readability.
  • the ADDD 101 is a virtual image that is as comprehensive as possible, tracks the current physical state of the elevator system 1 and therefore represents a virtual elevator system assigned to the elevator system 1.
  • the ADDD 101 is not just a virtual shell model of the elevator system 1 that is shown in approximately represents its dimensions, but it is each individual physical component from the elevator car 11, the shaft doors 49, the counterweight 17 to the last screw with as many characterizing properties of these components as possible also in digitized form in the ADDD 101 as a component model data set of the elevator car 111, as a component model data record of the shaft doors 149, as a component model data record of the counterweight 117, etc. available and mapped.
  • interfaces of the elevator installation 1, such as, for example, the elevator shaft 3 belonging to the building 5 can be mapped as a component model data record 103 in ADDD 101.
  • the characterizing properties of their physical counterparts of the elevator installation 1 contained in the component model data sets 111, 149, 117 can be geometric dimensions of the components such as a length, a width, a height, a cross section, radii, fillets, etc.
  • the surface properties of the components such as roughness, textures, coatings, colors,
  • Reflectivities, etc. belong to the characterizing properties. Furthermore, material values such as the modulus of elasticity, the
  • Tensile strength value, etc. can be stored as characterizing properties of the respective component. These are not theoretical properties (target data), such as those found on a production drawing, for example, but characterizing properties (actual data) actually determined on the physical component. Information relevant to assembly, such as the actually applied tightening torque of a screw and thus its pretensioning force, are preferably assigned to the respective component.
  • the data 131 transmitted from the signal processing unit 31 to the ADDD 101 can include the expansion differences Afsi, A £ s2, Afs n of segments Si, S2, S n , which as characterizing properties of assigned virtual segments Si, S2, S n a suspension element 123A, 123B, 123C of the ADDD 101, which is mapped as a digital component model data record.
  • the measured lengths Li, L2, Ln of the segments Si, S2, S n can also be transmitted, so that the component model data records of the suspension elements 123A, 123B, 123C also have the effective lengths of their physical counterparts.
  • the ADDD 101 is not tied to a specific storage location or processing location. It can, for example, be stored in the signal processing unit 31 of the device, but also in the control unit 45, in a computer 121 or in a network with several computer systems.
  • the ADDD 101 can be implemented in a computer network that stores and processes data in a data cloud 50 (cloud).
  • the computer network can have a memory or, as shown symbolically, memory resources 151 in the data cloud 50, in which the data of the ADDD 101 (symbolically with
  • Passenger transport system 1 shown can be stored, for example in electronic or magnetic Lorm. This means that the ADDD 101 can be stored in any storage location.
  • the ADDD 101 provides an excellent virtual simulation platform because it contains and depicts all the relevant characterizing properties of the physical components.
  • the simulations can, for example, in the data cloud 50, but also through temporary Storage and processing of the ADDD 101 in the signal processing unit 31 can be carried out.
  • Additional loads such as suspension element vibrations due to the changed expansion differences Afsi, A £ s2, Afs n and / or due to the changed length of the suspension element 23A, 23B, 23C can be simulated and their effects on the other components can be investigated, so that, for example, the increased expansion difference is not directly Afsi, A £ s2, Afsn of the segment Si, S2, S n or the correspondingly reduced load-bearing cross-section determines the discard age, but rather the changing vibration behavior of the suspension element 23A, 23B, 23C and its effects, for example, on the ride comfort and the components of the elevator system 1 such as the guide rails 55, the guide shoes of the elevator car 11 and the like.
  • the remaining time until discard also referred to as remaining service life ⁇ AB , can be calculated.
  • the simulation results 159 obtained in this way can then be transmitted to an output unit, in the present example the screen 122 of a portable computer 121, as shown by the arrow 163.
  • alarm signals 155 can also be generated and transmitted to the output unit 122, in particular, of course, when the calculations and / or simulations have shown that the suspension element 23A, 23B, 23C has reached its discard status.
  • the output unit does not necessarily have to be a screen 122, but can also be, for example, a loudspeaker and the like.
  • the alarm signal 155 can, for example, also be sent to the
  • FIGS. 1 to 4 relate to different aspects of the present invention and these have been described in detail using the example of an elevator system 1 with a so-called 2: 1 suspension element guide variant, it is obvious that the method steps described and a corresponding device also apply equally to elevator systems 1 with other suspension element guide variants such as 1: 1, 3: 1, etc. apply.
  • the signal processing unit 31 is shown in FIGS. 1 and 4 as a self-contained unit composed of hardware and software.
  • the signal processing unit 31 can, however, also be implemented separately from the physical elevator installation 1, for example on the portable computer 121 or in the data cloud 50.

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  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Golf Clubs (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

La présente invention concerne un procédé et un dispositif 21 pour surveiller l'état physique d'un moyen de suspension 23 qui est relié à une cabine d'ascenseur 11 et peut déplacer cette dernière. Le moyen de suspension 23 comprend des marques 25 le long de sa longueur qui divisent le moyen de suspension 23 en des segments S1, S2, Sn. Selon la présente invention, la différence d'allongement ΔƐ du moyen de suspension 23 peut être surveillée par segment du fait que, au moyen d'une unité de traitement de signaux 31 et à partir d'un écart entre deux marques 25 sélectionnées détectées par le dispositif de détection 29, un premier allongement Ɛ1 avec une première charge F et un second allongement Ɛ2 avec une seconde charge 2 sont déterminés et une différence d'allongement ΔƐ représentant le comportement élastique du segment S1, S2, Sn est calculée à partir des deux allongements Ɛ1, Ɛ2. Un dispositif de mesure de charge 33 permet de mesurer la force F 1 , F2 agissant sur le moyen de suspension 23 entre les deux marques sélectionnées 25.
EP20710179.1A 2019-03-29 2020-03-16 Détermination de l'état d'un moyen de transport Active EP3947233B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19166107 2019-03-29
PCT/EP2020/057075 WO2020200727A1 (fr) 2019-03-29 2020-03-16 Détermination de l'état d'un moyen de suspension

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EP3947233A1 true EP3947233A1 (fr) 2022-02-09
EP3947233B1 EP3947233B1 (fr) 2023-02-15

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US (1) US20220185628A1 (fr)
EP (1) EP3947233B1 (fr)
KR (1) KR20210145730A (fr)
CN (1) CN113544074B (fr)
ES (1) ES2939731T3 (fr)
WO (1) WO2020200727A1 (fr)

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EP4313828A1 (fr) 2021-03-23 2024-02-07 KONE Corporation Procédé et système d'utilisation de jumeaux numériques pour déterminer un besoin de maintenance d'un ascenseur
US11932515B2 (en) * 2021-04-05 2024-03-19 Otis Elevator Company Elevator tension member monitor
DE102022118101A1 (de) 2022-07-20 2024-01-25 Tk Elevator Innovation And Operations Gmbh Aufzugsanlage sowie Verfahren zum Erkennen von Fehlerzuständen

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JP5865037B2 (ja) * 2011-11-28 2016-02-17 株式会社日立製作所 エレベータの運行管理システム
EP2900583A4 (fr) * 2012-11-16 2016-06-29 Kone Corp Ascenseur, et amélioration apportée à la réduction de l'allongement de câble ou courroie d'ascenseur dans une situation de charge de la cabine d'ascenseur, et utilisation de contrainte de tension préalable pour renforcer le câble ou la courroie de l'ascenseur
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CN107923831B (zh) * 2015-08-26 2020-03-20 三菱电机株式会社 绳索劣化检测装置和具有绳索劣化检测装置的电梯装置
WO2017195352A1 (fr) * 2016-05-13 2017-11-16 三菱電機株式会社 Câble d'ascenseur et dispositif de détection d'état tordu du câble
US20180105393A1 (en) * 2016-10-19 2018-04-19 Otis Elevator Company Automatic marking system

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CN113544074A (zh) 2021-10-22
KR20210145730A (ko) 2021-12-02
US20220185628A1 (en) 2022-06-16
CN113544074B (zh) 2022-10-18
EP3947233B1 (fr) 2023-02-15
ES2939731T3 (es) 2023-04-26

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