EP1808400B1 - Dispositif et méthode pour actionner un ascenseur - Google Patents

Dispositif et méthode pour actionner un ascenseur Download PDF

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Publication number
EP1808400B1
EP1808400B1 EP20070100350 EP07100350A EP1808400B1 EP 1808400 B1 EP1808400 B1 EP 1808400B1 EP 20070100350 EP20070100350 EP 20070100350 EP 07100350 A EP07100350 A EP 07100350A EP 1808400 B1 EP1808400 B1 EP 1808400B1
Authority
EP
European Patent Office
Prior art keywords
drum
elevator
drive unit
elevator car
control unit
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.)
Not-in-force
Application number
EP20070100350
Other languages
German (de)
English (en)
Other versions
EP1808400A1 (fr
Inventor
Philippe Henneau
Carlos Yankelevich
Christoph Liebetrau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inventio AG
Original Assignee
Inventio AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Priority to EP20070100350 priority Critical patent/EP1808400B1/fr
Publication of EP1808400A1 publication Critical patent/EP1808400A1/fr
Application granted granted Critical
Publication of EP1808400B1 publication Critical patent/EP1808400B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/06—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable positively attached to a winding drum

Definitions

  • the invention relates to a method for operating an elevator installation according to the preamble of claim 1 and an elevator installation therefor according to the preamble of claim 7.
  • elevator systems in which the elevator car is raised or lowered by means of a rope.
  • the rope used is typically a Stahlzugseil which extends over a sheave and is connected at one end to the elevator car and at its other end with a counterweight.
  • the sheave is driven by an electric motor, the sheave lifting the elevator car as the motor rotates in one direction, and the sheave lowers the elevator car as the motor rotates in the other direction.
  • a transmission gear can be provided between the drive motor and pulley.
  • the drive motor is typically associated with a control unit. Sheave, drive motor and control system are usually arranged in a machine room above the elevator shaft.
  • Elevator car and counterweight hang on opposite sides of the sheave.
  • the weight of the counterweight usually corresponds approximately to the weight of a 40% filled elevator car. If the elevator car is filled to 40%, then only little energy is required to move the elevator car. In such a case, the drive motor essentially serves to overcome the friction. If the weight of the elevator car is approximately equal to the weight of the counterweight, this results in an almost constant level of potential energy in the overall system. Decreases the potential energy of the elevator car by lowering the elevator car In turn, the potential energy of the counterweight increases as it is raised and vice versa.
  • This commonly used elevator system has the disadvantage that additional space for the counterweight is needed. Furthermore, the moment of inertia of the counterweight can lead to unwanted changes in position of the elevator car.
  • the speed of the elevator car in the known elevator system with drum changes depending on the length of the traction means already rolled up.
  • the traction means is rolled up onto the drum, whereby the diameter of the traction roller on the drum increases continuously, which in turn causes an increase in the car speed. If the elevator car moves downwards, the diameter of the traction mechanism pulley decreases with the consequence that also reduces the speed of the elevator car.
  • constant rotational speed of the drive unit thus changes the speed of the elevator car depending on the position of the elevator car. This leads to a low user comfort.
  • the invention solves the problem by providing a method having the features of claim 1.
  • a rotational speed of the drive unit which serves to drive the drum
  • a control unit which serves to drive the drive unit, as a function of a length specified on the drum rolled up belt.
  • the control unit may also be a control unit.
  • the method according to the invention has the advantage that the rotational speed of the drive unit is predetermined via the control unit such that the speed of the elevator car is substantially constant. This is perceived by the passenger as pleasant and leads to an increase in user comfort. Since the drum receives the traction means, can be dispensed with a counterweight. As a result, slip effects due to the moment of inertia of the counterweight are avoided. The position of the elevator car can be determined from the length of the rolled-up traction device.
  • the length of the rolled onto the drum traction means is determined from an absolute number of revolutions of the drum. Under the absolute number of revolutions of the drum, the difference in the number of revolutions of the drum when lifting the elevator car and the number of revolutions of the drum at Lowering the cabin understood.
  • the length of the pulling means rolled up onto the drum and / or the absolute number of revolutions is preferably determined by means of a value transmitter assigned to the drive unit, which may in particular be a pulse generator and / or a rotary speed sensor.
  • the length of the rolled-up traction device and / or the absolute number of revolutions from a position of the elevator car in an elevator shaft can be determined via a value transmitter, in particular a position value transmitter, arranged in the elevator shaft or on the elevator car.
  • the drive unit is given a rotational speed by the control unit after each revolution of the drum.
  • One revolution of the drum is understood to mean one complete revolution, that is to say one revolution through 360 °. This has the advantage that the rotational speed of the drive unit is adapted as quickly as possible to the length of the rolled onto the drum traction means.
  • the traction means is wound spirally on the drum. That is, the traction means comes to rest on each revolution. The segments of the traction means corresponding to one revolution do not come to rest side by side on the drum. This has the advantage that the drum width needs to correspond substantially only to the width of the traction means.
  • the elevator installation according to the invention is characterized in that a control unit for controlling the drive unit is provided, which is designed such that it can determine a rotational speed for the drive unit as a function of the length of the pulling means rolled up on the drum.
  • a control unit for controlling the drive unit is provided, which is designed such that it can determine a rotational speed for the drive unit as a function of the length of the pulling means rolled up on the drum.
  • a value transmitter assigned to the drive unit and / or a value transmitter assigned to the elevator car and / or the elevator shaft can be used, the latter serving to determine the position of the elevator car in the elevator shaft, from which in turn the number of revolutions can be determined ,
  • absolute encoders are used which require no initialization, in which the elevator car is moved to an initial position and the control unit sets the absolute number of revolutions to zero.
  • An absolute value encoder stores, for example, an absolute number of revolutions that has already been executed at start-up as well as a number of revolutions executed after a power failure.
  • Fig. 1 shows an elevator system 1, as it is commonly used.
  • the elevator installation 1 comprises an elevator car 2, a counterweight 3, a traction means 4, and a machine room 5 which is located above the elevator shaft 6 is arranged.
  • a pulling means 4 for example, a rope, a belt or a flat belt is used.
  • the traction means 4 is connected at its one end to the elevator car 2 and at its other end to the counterweight 3, wherein it passes over a pulley 7, which is arranged in the machine room 5 ,.
  • the pulley 7 is driven by a drive unit 8, for example an electric motor, which in turn is driven by a control unit 9.
  • a drum 11 is used, which is preferably arranged in the machine room 5 and to which the traction means 4 can be rolled up.
  • the traction means 4 may also consist of several parallel traction means.
  • the drum 11 is associated with a drive unit 12, wherein drum 11 and drive unit 12 are preferably integrated in one unit.
  • the drive unit 12 is controlled via a control unit 13.
  • the traction means 4 is preferably rolled up in the form of a so-called Archimedean spiral r (p), as exemplified in Fig. 3 is shown.
  • An Archimedean spiral is characterized by a constant winding distance over its entire domain of definition. This constant winding distance results at the in Fig. 2 illustrated elevator system from the constant thickness of the traction means. 4
  • L L1 - L2
  • the rotational speed R is preferably redefined after each revolution of the drum 11.
  • the reference speed S can be predetermined, for example, by the user or by the elevator installation provider.
  • the control unit 13 controls the drive unit 12 and thus the drum 11 to the predetermined rotational speed R.
  • the control unit 13 can also be designed so that it adjusts the drive unit 12 and / or the drum 11 to the predetermined rotational speed R.
  • the length Z depends on the absolute number n of revolutions since commissioning.
  • a value transmitter 13 preferably a pulse generator, can be provided on the drive unit 12 and / or on the drum 11.
  • the elevator car can be moved to an initial position, which is, for example, the lowest floor, and the control unit 13 resets the absolute number n of revolutions to zero.
  • a sensor unit 15 which is provided in the elevator shaft 6 and which is preferably based on a magnetic measuring principle, which notifies the control unit 13 when the elevator car 2 has reached the initial position.
  • the absolute number n of revolutions can also be determined via the position of the elevator car 2 in the elevator shaft 6.
  • a position sensor is preferably arranged in the elevator shaft 6 and / or on the elevator car 2. This, too, must always be initialized according to the principle described above. From the determined position of the elevator car 2, which in turn results from the length of the rolled-up traction means 4, the control unit 13 then determines the absolute number n of revolutions of the drum 11.
  • the value transmitter 14 and / or 16 may also be designed as absolute value encoders which have stored the absolute number n of revolutions which have already been carried out, for example, during startup or after a power failure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Elevator Control (AREA)

Claims (9)

  1. Procédé pour le fonctionnement d'une installation d'ascenseur (10) avec un tambour (11) pour recevoir un moyen de traction (4), une unité d'entraînement (12) pour entraîner le tambour (11), et une unité de commande (13) pour commander l'unité d'entraînement (12), caractérisé en ce que l'unité de commande (13) de l'unité d'entraînement (12) prédéfinit une vitesse de rotation (R) en fonction d'une longueur (L, Z) du moyen de traction (4) enroulé sur le tambour (11).
  2. Procédé selon la revendication 1, caractérisé en ce que la longueur (L, Z) du moyen de traction (4) enroulé sur le tambour (11) est déterminée à partir d'un nombre absolu (n) de tours du tambour (11).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la longueur (L, Z) du moyen de traction (4) enroulé sur le tambour (11) et/ou le nombre absolu (n) de tours sont déterminés à partir d'une position d'une cabine d'ascenseur (2) dans une gaine d'ascenseur (6).
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que lors de la mise en marche, la cabine d'ascenseur (2) est amenée dans une position initiale pour l'initialisation de l'unité de commande (13).
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'une vitesse de rotation (R) est prédéfinie par l'unité de commande (13) pour l'unité d'entraînement (12) après chaque tour du tambour (11).
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que le moyen de traction (4) est enroulé en spirale sur le tambour (11).
  7. Installation d'ascenseur avec un tambour (11) pour recevoir un moyen de traction (4), une unité d'entraînement (12) pour entraîner le tambour (11), et une unité de commande (13) pour commander l'unité d'entraînement (12), caractérisé en ce que l'unité de commande (13) est conçue de telle sorte qu'elle peut déterminer pour l'unité d'entraînement (11) une vitesse de rotation (R) en fonction de la longueur (L, Z) du moyen de traction (4) enroulé sur le tambour (11).
  8. Installation d'ascenseur selon la revendication 7, caractérisée en ce qu'il est prévu, associé à l'unité d'entraînement (12), un capteur de valeur (14) qui est destiné à déterminer le nombre (n) de tours et qui est conçu de préférence comme un capteur de valeur absolue.
  9. Installation d'ascenseur selon la revendication 7, caractérisée en ce qu'il est prévu, associé à une cabine d'ascenseur (2), un capteur de valeur (16) qui est destiné à déterminer la position de la cabine (2) et qui est conçu de préférence comme un capteur de valeur absolue.
EP20070100350 2006-01-17 2007-01-10 Dispositif et méthode pour actionner un ascenseur Not-in-force EP1808400B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20070100350 EP1808400B1 (fr) 2006-01-17 2007-01-10 Dispositif et méthode pour actionner un ascenseur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06100453 2006-01-17
EP20070100350 EP1808400B1 (fr) 2006-01-17 2007-01-10 Dispositif et méthode pour actionner un ascenseur

Publications (2)

Publication Number Publication Date
EP1808400A1 EP1808400A1 (fr) 2007-07-18
EP1808400B1 true EP1808400B1 (fr) 2013-05-08

Family

ID=38156851

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070100350 Not-in-force EP1808400B1 (fr) 2006-01-17 2007-01-10 Dispositif et méthode pour actionner un ascenseur

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EP (1) EP1808400B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108417306B (zh) * 2018-04-11 2023-12-15 波士顿电梯（湖州）有限公司 用于低层建筑电梯的随行电缆
AT18117U1 (de) * 2022-06-29 2024-02-15 Weigl Liftsysteme Gmbh Aufzug mit fasergurt
EP4357288A1 (fr) * 2022-10-19 2024-04-24 Davide Masini Dispositif et procede pour varier la position de fin de course d'une cabine d'un systeme de levage a corde

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3497787A (en) * 1967-02-03 1970-02-24 Nordberg Manufacturing Co Mine hoist control system
JPH01176624A (ja) * 1988-01-05 1989-07-13 Toshiba Corp 環形ガラス管の曲げ装置
JPH0710402A (ja) * 1993-06-29 1995-01-13 Tabuchi Tec Kk 昇降機用駆動装置の制御方法及びそれに用いる駆動装置
US6305499B1 (en) * 1998-09-30 2001-10-23 Otis Elevator Company Drum drive elevator using flat belt

Also Published As

Publication number Publication date
EP1808400A1 (fr) 2007-07-18

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