EP1262437A2 - Mesure de position dans une installation d'ascenseur - Google Patents

Mesure de position dans une installation d'ascenseur Download PDF

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Publication number
EP1262437A2
EP1262437A2 EP02011423A EP02011423A EP1262437A2 EP 1262437 A2 EP1262437 A2 EP 1262437A2 EP 02011423 A EP02011423 A EP 02011423A EP 02011423 A EP02011423 A EP 02011423A EP 1262437 A2 EP1262437 A2 EP 1262437A2
Authority
EP
European Patent Office
Prior art keywords
sensor device
traction sheave
elevator system
sensor
elevator
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.)
Withdrawn
Application number
EP02011423A
Other languages
German (de)
English (en)
Other versions
EP1262437A3 (fr
Inventor
Michael Kern
Peter Kaldenhoff
Klaus Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schmitt & Sohn & Co Aufzugswerke GmbH
Original Assignee
Schmitt & Sohn & Co Aufzugswerke GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schmitt & Sohn & Co Aufzugswerke GmbH filed Critical Schmitt & Sohn & Co Aufzugswerke GmbH
Publication of EP1262437A2 publication Critical patent/EP1262437A2/fr
Publication of EP1262437A3 publication Critical patent/EP1262437A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3492—Position or motion detectors or driving means for the detector

Definitions

  • the invention relates to an elevator system with a rope connected Elevator cabin and with a drive for the elevator cabin, with a traction sheave around which the rope is looped.
  • a traction sheave and the rope on the traction sheave Watch video camera It is known to use a traction sheave and the rope on the traction sheave Watch video camera.
  • the video camera is connected to a monitor that is provided in a control cabinet of the elevator system.
  • Video camera it is possible to simultaneously move the traction sheave and the Rope observed when the elevator car makes a normal elevator ride.
  • the video camera it is possible to rotate the traction sheave alone, i.e. when the rope is standing, to be observed when the elevator car is in its top position, i.e. with the help of such a video camera Lift systems of the type mentioned at the outset to perform a slip test to observe reliably.
  • Such video surveillance with one of the Traction sheave assigned video camera and one in the control cabinet
  • the monitor arranged in the elevator system does not cause negligible Component or acquisition costs.
  • An elevator system of the type mentioned at the outset is known from DE 198 15 227 C1.
  • the elevator car is connected to an incremental encoder and by means of a drive can be moved in an elevator shaft.
  • An elevator shaft switching device defines reference points or stops.
  • the incremental encoder is intended for the generation of pulse sequences that are against each other are preferably 90 ° out of phase.
  • the incremental encoder is included connected to a binary counter, which is connected to an inverter.
  • the Inverter is assigned to a changeover switch and connected to an adder.
  • the Adder is connected to a control unit. Between the control unit and a correction element is provided in return for the adder. The one in this The control described in the publication serves to ensure that the direction of rotation of the Incremental encoder is irrelevant, with a simple Slip correction is guaranteed.
  • DD 232 897 A1 describes a device for display and signaling a zip line in shaft hoists, the zip line measuring can be detected. This is achieved in that the angular difference between Tower disc and traction sheave, which is created when the rope slides, by means of incremental Encoder is measured and evaluated digitally and if one is exceeded adjustable limit value the measuring signal the shutdown of the shaft conveyor system causes.
  • EP 0 563 836 A2 describes a method for measuring the driving ability of a vehicle a drive rope provided over a traction sheave one Conveyor system, in particular an elevator system, with one end of the suspension cable hanging car and counterweight hanging on the other end of the suspension cable known, the suspension cable is relieved so far on one side until the traction sheave below the suspension rope slips in sliding friction.
  • a measured value is determined from which the ability to drive is concluded.
  • the measurement value is preferably the Weight force of the relief recorded directly with a measuring device and from it the Driving ability determined as critical rope tension ratio.
  • the measuring device can on a buffer assigned to the car or the counterweight in the Elevator shaft pit to be arranged.
  • the invention has for its object an elevator system of the aforementioned Art to create that just as reliably normal with comparatively simple means Movements of the elevator car as well as the result of a slip test if the The elevator car is in its uppermost position and when it rotates Traction sheave the rope slips on the traction sheave, i.e. no movement performs, to capture.
  • This task is performed in an elevator system of the type mentioned solved according to the invention in that a first sensor device for detecting a Rotary movement of the traction sheave and a second sensor device for detection a movement of the elevator car is provided, the first Sensor device with a first optical display device and the second Sensor device is connected to a second optical display device are arranged in the control cabinet of the elevator system.
  • the first one If the traction sheave rotates, the first one generates Sensor device a corresponding electrical output signal, which for Activation of the first optical display device is used.
  • Guides the elevator car moves, the rope that wraps around the traction sheave leads through corresponding feed movement by the second sensor device is detected.
  • the second sensor device has an output which is connected to the second optical display device is connected. So does the rope lead one of the Movement of the elevator car corresponding movement by, so Output of the second sensor device a corresponding electrical signal generated with which the second optical display device is activated.
  • the first and the second optical display device are expediently each formed by at least one light emitting diode.
  • Such LEDs are available inexpensively available, so that the material costs are negligible is low.
  • Such LEDs also require in the control cabinet Compared to a monitor - only a negligibly small space, which one represents another advantage.
  • the first to detect a rotary movement of the traction sheave Sensor device can be assigned to the traction sheave of the elevator system. in this connection can the traction sheave a perforated disc or a toothed ring and the first Sensor device have a metal sensor. With such training become electrical at the output of the metal sensor of the first sensor device Pulses are generated when the traction sheave, i.e. the axis of the traction sheave concentric perforated disc or the concentric to the axis of the traction sheave Gear ring moved past the metal sensor. The pulse frequency of the metal sensor is proportional to the speed of rotation of the traction sheave.
  • the traction sheave along one Traction sheave concentric pitch circle spaced apart Magnetic elements and the first sensor device has a magnetic field sensor. Even with such training of the latter type at the exit of the Magnetic field sensor generates electrical pulses when the traction sheave rotates. The pulse frequency also depends on the speed of the traction sheave, i.e. to this proportional.
  • the traction sheave is a Perforated disk or a toothed ring and the first sensor device Has light barrier device.
  • a light barrier device is also suitable for a rotation of the traction sheave or perforated disc or To generate toothed ring of the traction sheave, the Pulse frequency is proportional to the speed of the traction sheave.
  • the sensor device assigned to the traction sheave has a metal sensor, one Magnetic field sensor or a light barrier device, then it can be sufficient be when the first optical display device by a single light emitting diode is formed because such sensors each generate only one pulse train.
  • the provided for detecting a rotary movement of the traction sheave i.e. the The first sensor device assigned to the traction sheave can also have a first Have incremental rotary encoders.
  • This first incremental encoder can be used on the Shaft of the traction sheave or on the shaft of the drive motor of the drive Elevator system may be provided.
  • Such an incremental encoder can do two generate phase-shifted impulse sequences, which is why when training the the latter type is appropriate if the outcome of the first Incremental encoder with two provided in the control cabinet of the elevator system LEDs are interconnected.
  • An elevator system or a controller for an elevator with a Incremental encoder which is intended to generate two pulse trains described, for example, in DE 198 15 227 C1 of the applicant.
  • the second sensor device is formed by a second incremental rotary encoder, which is provided on a measuring roller, around which an endless cord is wound, the is connected to the elevator car.
  • a second incremental rotary encoder which is provided on a measuring roller, around which an endless cord is wound, the is connected to the elevator car.
  • DE 198 15 227 C1 is referred to.
  • the second sensor device it is also possible for the second sensor device to have a Has metal sensor, which is assigned to a rope pulley, the perforated disc or has a toothed ring. Regarding this metal sensor for the second Sensor device apply to the above in connection with the metal sensor first sensor device made accordingly.
  • the second sensor device can also have a magnetic field sensor, which is one Rope pulley is assigned that runs along a pitch circle from each other has spaced apart magnetic elements.
  • the second Sensor device has a light barrier device that a rope pulley is assigned, which has a perforated disc or a toothed ring.
  • the Magnetic field sensor and the light barrier device of the second sensor device apply in this context to the first sensor device Comments regarding the mode of operation of the respective sensor.
  • the second sensor device with a metal sensor, a magnetic field sensor or a light barrier device can also in the elevator installation according to the invention be assigned to the speed limiter role, as is the case with cable lift systems is available.
  • the elevator system according to the invention has the advantage that the effort for Detecting a rotation of the traction sheave and for detecting a movement of the the elevator car connected rope and thus a movement of the Elevator cabin is very small, without this affecting the test result would.
  • FIG. 1 shows schematically an elevator system 10 with an elevator car 12 and Counterweight 14, which are connected to each other by means of a rope 16.
  • the rope 16 is provided with its two ends 18 and 20 fixed to the building.
  • the elevator car 12 has deflection rollers 22 around which the cable 16 is deflected.
  • the rope 16 is also deflected around two building-fixed rope pulleys 24, which in the shaft 26 of the Elevator system 10 are arranged above.
  • a traction sheave 28 around which the rope 16 is looped, is provided in the shaft 26 below.
  • the traction sheave 28 is with a Drive 30 connected, which has a drive motor 32 and a transmission 34.
  • the Active connection between the drive 30 and the traction sheave 28 is by the arrow 36 indicated.
  • the counterweight 14 hangs on a counterweight roller 38 around which the rope 16 is also wrapped. If the drive 30 is activated, ie the drive motor 32 rotates in one or the other direction of rotation, the elevator car 12 in the shaft 26 is moved up or down and simultaneously the counterweight 14 is moved down or up.
  • the elevator car 12 is formed with or by a plastic cord 40 connected flexible element 42, which is provided around two fixed in the shaft 26 Deflection rollers 44 and 46 is deflected.
  • the deflection roller 44 is with a Incremental encoder 48 connected in a rotationally fixed manner.
  • the incremental encoder 48 is for Generation of two 90 ° phase-shifted pulse trains 50 and 52 suitable.
  • the incremental rotary encoder 48 is connected to two light-emitting diodes 54 which are provided in a control cabinet 56 of the elevator installation 10.
  • the elevator car 12 moves in the shaft 26 as a result of a rotation of the Traction sheave 28 up or down, the incremental rotary encoder 48 generates the two phase-shifted pulse trains 50 and 52, so that the two LEDs 54 blink or flicker accordingly out of phase.
  • the flashing frequency of the LEDs 54 corresponds to the rotational speed proportional pulse frequency of the pulse trains 50 and 52 des Incremental encoder 48, so that by observing the LEDs 54 Speed of the elevator car 12 can be determined.
  • a first is for detecting the respective rotary movement of the traction sheave 28
  • Sensor device 58 is provided which is connected to a light emitting diode 60 is. This is indicated by arrow 62.
  • the light emitting diode 60 consequently forms one of the first optical display device 64 assigned to first sensor device 58 two LEDs 54 form a second optical display device 66, one for example, second sensor device 68 formed by incremental rotary encoder 48 assigned.
  • the first sensor device 58 thus serves to detect a rotary movement of the Traction sheave 28 and the second sensor device 68 is used to detect a Movement movement of the elevator car 12.
  • the first visual display device 64 i.e. the light emitting diode 60
  • the second optical display device 66 i.e. the two LEDs 54 are provided in the control cabinet 56.
  • the first sensor device 58 has an output at which a pulse train 70 is generated when the Traction sheave 28 rotates.
  • This pulse train 70 leads to a corresponding flashing or flickering of the light emitting diode 60 of the first optical display device 64, wherein the flashing frequency of the light emitting diode 60 the pulse frequency of the pulse train 70 corresponds to, which is proportional to the rotational speed of the traction sheave 28.
  • FIG. 1 also schematically illustrates a speed limiter roller 72, around which an endless catching or steel cable 74 is looped.
  • the Speed limiter roller 72 is mounted in the shaft 26 above.
  • the steel cable 74 is wound around a roller 76 provided in the shaft 26 below, on which a weight 78 hangs to tension the steel cable 74.
  • the steel cable 74 is with the cabin 12 connected. If the speed of the elevator car 12 exceeds a defined one Limit value, so the speed limiter roller 72 by centrifugal force activated to trigger a pawl by means of which the elevator car 12 is stopped.
  • the traction sheave 28 can be connected to the traction sheave shaft 80 coaxial perforated disk 82 or along one to the traction sheave shaft 80 concentric pitch circle 84 equidistantly spaced holes 86th have, wherein said pitch circle 84 is assigned a metal sensor 88.
  • the Metal sensor 88 is axially slightly spaced from pitch circle 84. The spins Traction sheave 28, the metal sensor 88 generates a pulse train 70 (see also FIG 1).
  • the traction sheave 28 can also have a toothed ring be provided, to which the metal sensor 88 is assigned. Even with one A toothed ring can generate a pulse train 70 when the traction sheave 28 rotates.
  • FIG 2B illustrates a traction sheave 28 having a toothed ring 90, the one Light barrier device 92 is assigned.
  • the light barrier device 92 has a light source 94 and a receiver 96.
  • the receiver 96 is for Generation of a pulse train 70 suitable (see also Figure 1).
  • the Light barrier device 92 can be used as a transmitted light device or as Reflection light device can be formed.
  • FIG. 2C illustrates a traction sheave 28 that runs along a pitch circle 84 Magnetic elements 98 spaced equidistant from one another.
  • Pitch circle 84 a magnetic field sensor 100 is associated with the magnetic elements 98.
  • the spins Traction sheave 28, the magnetic field sensor 100 produces one at its output Pulse train 70.
  • the pulse frequency of the pulse train 70 is - independent of the special training - proportional to the speed of rotation of the traction sheave 28.
  • the first to detect the rotational movement of the traction sheave 28 Sensor device 58 can also have an incremental rotary encoder 102 (see FIG Figures 1 and 3). This last-mentioned incremental encoder 102 can on the Shaft 80 of the traction sheave 28 or on the shaft 104 of the drive motor 32 is provided be (see Fig. 3).
  • the first sensor device 58 has an incremental rotary encoder 102 on which is used to generate two pulse sequences 106 and 108 - similar to the pulse trains 50 and 52 of the incremental encoder 48 - suitable then the first optical display device 64 is expediently likewise formed by two LEDs 60 in the control cabinet 56.
  • the second sensor device 68 is of the second Incremental rotary encoder 48 formed on one of the fixed deflection pulley 44 formed measuring roller 110 is provided around which the plastic cord 40 is looped is.
  • the second sensor device 68 can, for example, also have one Have metal sensor, as described above in connection with Figure 2A and which is assigned to a rope deflection pulley 24 instead of to the traction sheave 28.
  • the second sensor device can also be a magnetic field sensor, for example have, as in connection with Figure 2C in combination with the traction sheave 28th has been described and which is assigned to one of the rope pulleys 24.
  • the second sensor device 68 corresponding, i.e. such a light barrier device can be the second Sensor device 68 can be assigned to a rope deflection roller 24.
  • the second Sensor device 68 can also be assigned to the speed limiter roller 72 his.
  • a metal sensor, a magnetic field sensor or a Light barrier device can be provided.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP02011423A 2001-05-29 2002-05-24 Mesure de position dans une installation d'ascenseur Withdrawn EP1262437A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10125972 2001-05-29
DE2001125972 DE10125972B4 (de) 2001-05-29 2001-05-29 Aufzuganlage

Publications (2)

Publication Number Publication Date
EP1262437A2 true EP1262437A2 (fr) 2002-12-04
EP1262437A3 EP1262437A3 (fr) 2007-05-23

Family

ID=7686412

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02011423A Withdrawn EP1262437A3 (fr) 2001-05-29 2002-05-24 Mesure de position dans une installation d'ascenseur

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EP (1) EP1262437A3 (fr)
DE (1) DE10125972B4 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006036251A1 (de) * 2006-08-03 2008-02-07 TÜV Rheinland Industrie Service GmbH Seilrutsch / Treibfähigkeits-Indikator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4085823A (en) * 1975-11-03 1978-04-25 Westinghouse Electric Corporation Elevator system
JPS593626Y2 (ja) * 1978-11-01 1984-02-01 三菱電機株式会社 周波数．電圧変換回路
DD232897A1 (de) * 1984-12-27 1986-02-12 Kali Veb K Vorrichtung zur anzeige des seilrutschens bei schachtfoerderanlagen
DE3911391C5 (de) * 1989-04-07 2010-04-29 TÜV SÜD Industrie Service GmbH Verfahren und Vorrichtung zum Überprüfen der Treibfähigkeit
DE4211289C2 (de) * 1992-04-03 1994-01-05 Tech Ueberwachungs Verein Hann Verfahren zum Messen der Treibfähigkeit eines Antriebs einer Förderanlage
DE29715349U1 (de) * 1997-08-27 1997-10-23 DMT-Gesellschaft für Forschung und Prüfung mbH, 45307 Essen Einrichtung zur Hängseilüberwachung einer Bobinenanlage
JPH11199153A (ja) * 1998-01-16 1999-07-27 Hitachi Building Systems Co Ltd エレベータの診断装置
DE19815227C1 (de) * 1998-04-04 1999-12-02 Schmitt & Sohn Gmbh & Co Steuerung für einen Aufzug

Also Published As

Publication number Publication date
DE10125972B4 (de) 2005-02-10
EP1262437A3 (fr) 2007-05-23
DE10125972A1 (de) 2002-12-12

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