EP2303751B1 - Installation d'ascenseur dotée d'un contrepoids automatique - Google Patents

Installation d'ascenseur dotée d'un contrepoids automatique Download PDF

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Publication number
EP2303751B1
EP2303751B1 EP09780644.2A EP09780644A EP2303751B1 EP 2303751 B1 EP2303751 B1 EP 2303751B1 EP 09780644 A EP09780644 A EP 09780644A EP 2303751 B1 EP2303751 B1 EP 2303751B1
Authority
EP
European Patent Office
Prior art keywords
counterweight
lift
drive
guide structure
flat
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
EP09780644.2A
Other languages
German (de)
English (en)
Other versions
EP2303751A1 (fr
Inventor
Hans Kocher
Stefan Hugel
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
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Inventio AG
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Filing date
Publication date
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Priority to EP09780644.2A priority Critical patent/EP2303751B1/fr
Publication of EP2303751A1 publication Critical patent/EP2303751A1/fr
Application granted granted Critical
Publication of EP2303751B1 publication Critical patent/EP2303751B1/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
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
    • B66B11/0055—Arrangement of driving gear, e.g. location or support in the hoistway on the counterweight
    • 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
    • B66B11/0065—Roping
    • B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave

Definitions

  • the invention relates to an elevator installation with an elevator car, with at least one lateral guide structure and with at least one counterweight movable along the guide structure, wherein the counterweight is provided with a self-propelled unit and connected by suspension means to the elevator car.
  • Conventional traction elevators include an elevator car connected to a counterweight via a suspension means.
  • the suspension (wire rope, belt, etc.) is driven by a stationary traction drive.
  • Both the elevator car and the counterweight are guided by rigid guides in the shaft.
  • this publication discloses for guiding the counterweight guide rails, but for the drive of the counterweight - by means of cylindrical motors or flat motors - a separate to the guide rails and the support means propellant, in the form of a flexible drive belt, which is stretched in the elevator shaft. On this drive belt driving friction wheels and this offset offset rollers run.
  • the drive belt and the drive wheels may be toothed.
  • publication font WO-A1-01 / 70614 discloses a similarly complex frame construction with drive shafts and at least one drive motor.
  • the object is to design an elevator system that takes up less space than the conventional traction elevators and which can be realized as simply and with few resources.
  • the object is achieved by an elevator installation in which at least one counterweight is self-propelled.
  • a flat drive is attached to this counterweight, with the flat drive interacting with a guide structure mounted stationarily in the elevator installation.
  • the guide structure serves as a guide means for the counterweight, and on the other hand, the guide structure absorbs drive forces of the flat drive.
  • the elevator car moves in that a rotational movement of the flat drive on the counterweight is converted into a vertical movement of the counterweight along the guide structure. Since the elevator car is connected via the suspension means with the counterweight, the elevator car follows the movement of the counterweight, wherein the directions of movement are opposite.
  • a complementary toothing is provided on the guide structure.
  • the elevator car moves in that a rotational movement of a sprocket of a flat drive on the counterweight is converted into a vertical movement of the counterweight along the complementary teeth. Since the elevator car is connected via the suspension means with the counterweight, the elevator car follows the movement of the counterweight, wherein the directions of movement are opposite.
  • a counterweight is provided which is asymmetrical on one side the elevator car is arranged. At least one flat drive is attached to this counterweight.
  • two counterweights are provided and at least one flat drive is attached to each of these counterweights.
  • These counterweights are preferably arranged symmetrically to the elevator car.
  • At least one respective counter-roller is provided per flat drive in order to be able to guide the counterweight safely.
  • the support means are mounted eccentrically in the upper region of the counterweight so that asymmetrically occurring forces are better absorbed.
  • the eccentric suspension of the counterweight leads to a safer engagement of the teeth in those embodiments in which such a toothing is provided.
  • the support elements, or their components can therefore be optimized independently of the drive and guide elements or their components.
  • the elastic connecting means between elevator car and counterweight is only a support means - or preferably several suspension elements are used here - and can / can be dimensioned accordingly.
  • the invention leads to a longer life for the / the support means, since no (surface) traction forces are introduced into the / the support means.
  • the driving forces of the flat drive (s) do not act on the suspension element (s) serving as the connection between the elevator car and the counterweight (s), but act on gears on the guide structure in or on the elevator shaft.
  • the complementary toothing through the interaction with the toothed rim (s) of the flat drives, also performs at least part of the guiding function for the counterweight (s) in addition to the drive function.
  • ACVF Variable Frequency Inverters
  • its mass can be used as an effective countermass mass.
  • EMC electromagtic interference
  • disturbances are minimized by the short connection between the ACVF and the flat drive (s).
  • the elevator system can be modular. That is, depending on the payload, the number of mounted on the counterweight flat drive units is varied.
  • a first elevator installation 100 is shown. It is an asymmetrical configuration, since on one side of an elevator car 5, a guide structure 10 is arranged with a self-propelled counterweight 18. On the other, opposite side of the elevator car 5 is a simple guide rail (eg in T-shape), which serves as a guide structure 10.
  • the elevator installation 100 can be installed, for example, in an elevator shaft 2 of a building.
  • a flat drive 6 is mounted, which serves as a self-propelled.
  • the flat drive 6 comprises at least one ring gear 7, which engages in a complementary toothing 25, which is provided for example on the guide structure 10.
  • the counterweight 18 is connected via suspension means 19 to the elevator car 5.
  • the support means 19 are deflected via corresponding deflection rollers (eg at the upper shaft end).
  • suspension points 8 for the support members 19 are present laterally of a center line L-L (symmetrical to the center line L-L).
  • the support members 19 each lead to the upper end of the elevator installation 100 in order to be guided there via the said deflection rollers (not shown) to the suspension points or attachment points 8.
  • These attachment points 8 lie in a vertical plane BV, which approximately coincides with the plane in the guide rails 10.1 of the guide structures 10 are attached.
  • a door system 50 may be provided with car doors 21 and shaft doors 22.
  • an asymmetrical door system 50 is used in the asymmetric configuration, as in FIG Fig. 1 shown.
  • the elevator car 5 can be equipped with the asymmetric door system 50 such that the door elements 21, 22 of the door system 50 move towards the side of the elevator car 5 when opening, where the guide structure 10 with the complementary toothing 25 is also located.
  • the displacement of the door elements 21, 22 is in Fig. 1 shown in dashed lines.
  • FIG. 1 two flat drives 6 are arranged side by side (parallel to each other) in a coaxial tandem configuration (see also Fig. 7 ).
  • Each flat drive 6 has its own sprocket 7, which engages in its own complementary teeth 25. But it can also be provided only one single flat drive 6 per counterweight 18 (see, eg Fig. 9 ).
  • These flat drives 6 are also referred to as torque motors.
  • the counterweight 18 is attached as a load directly to the flat drive 6.
  • a stator 34 is attached directly to the counterweight 18 or to a counterweight structure 35. It requires no transmission means, such as gears, belts, chains, etc. Therefore, these flat actuators 6 are also referred to as direct drives.
  • flat drives 6 It is an advantage of these flat drives 6 that they have a compact, space-saving design and therefore can be easily arranged in or on the counterweight 18. In addition, such flat drives 6 have almost no mechanical friction losses and are efficient. Particularly preferred are flat drives 6 with housing or frameless design. Such flat drives 6 can be disguised and rebuilt as needed. Therefore, they are particularly suitable for the present applications.
  • FIG. 2 Another embodiment of the invention is in Fig. 2 shown.
  • a schematic plan view of an elevator installation 100 can be seen. It is a symmetric configuration.
  • the elevator installation 100 comprises an elevator car 5, two vertical lateral guide structures 10 and two counterweights 18 movable along the guide structures 10.
  • each of the counterweights 18 is provided with a self-propelled drive.
  • the elevator car 5 is connected to the counterweights 18 by means of suspension 19. It is also in this case to self-propelled counterweights 18, at the top of each a flat drive 6 is attached.
  • Each flat drive 6 has at least one ring gear 7, which engages in complementary teeth 25 (eg in the form of toothed racks) which are provided on the guide structures 10.
  • a door system 50 may be provided with car doors 21 and shaft doors 22.
  • a symmetrical door system 50 is used in a symmetrical configuration, as in FIG Fig. 2 shown.
  • the elevator car 5 can be equipped with the symmetrical door system 50 such that the door elements 21, 22 of the door system 50 move towards both sides of the elevator car 5 when opening.
  • the displacement of the door elements 21, 22 is in Fig. 2 shown in dashed lines.
  • attachment points 8 lie in a vertical plane BV, which coincides approximately with the plane in which the guide rails 10.1 are mounted.
  • the attachment points 8 are laterally of a center line L-L (symmetrical to the center line L-L).
  • guide rails 10.1 are mounted in the example shown in order to perform the elevator car 5 more precise.
  • guide surfaces can be provided, for example, in the interior of the guide structures 10, along which counter rollers 24 can run. These guide surfaces preferably run parallel to the toothed rack serving as complementary toothing 25.
  • each counterweight 18 two flat drives 6 side by side (parallel to each other) arranged in a coaxial tandem configuration (see also Fig. 7 ).
  • Each flat drive 6 has its own sprocket 7, which engages in its own complementary teeth 25. But it can also be provided only one single flat drive 6 per counterweight 18 (see, eg Fig. 9 ).
  • FIGS. 3A and 3B Another embodiment of the invention is in FIGS. 3A and 3B shown.
  • Fig. 3A is a schematic side view of a portion of an elevator system 100 to see while Fig. 3B a schematic plan view shows.
  • the elevator installation 100 comprises a counterweight 18 with two vertical lateral toothings 25.
  • the counterweight 18 carries two flat drives 6.
  • Each of the two flat drives 6 has a toothed ring 7 which engages in the toothings 25.
  • counter rollers 24 are arranged on the opposite side of the sprockets 7 so that the teeth 25 extend between the sprockets 7 and the counter-rollers 24.
  • the elevator car (not shown) is connected to the counterweight 18 by means of suspension 19. It is also in this case a self-propelled counterweight 18.
  • a rotational movement of the sprockets 7 is converted into a vertical movement of the counterweight 18th
  • each of the flat actuators 6 is executed twice and has accordingly two sprockets 7, as in the plan view in Fig. 3B can be seen.
  • the counterweight 18 carries the power electronics (ACVF), as in Fig. 3A indicated.
  • FIG. 4 Another embodiment is in Fig. 4 shown. This further embodiment is described only slightly, since it is substantially the same in FIGS. 3A and 3B described Embodiment corresponds. It has four flat drives 6 in the case shown. This increases the delivery rate. Such a configuration is suitable, for example, for larger elevator cars and / or for moving larger loads.
  • Fig. 5 is a further embodiment shown in a highly schematic.
  • a hollow guide structure 10 in the interior I move two counter-rollers 24.
  • a rack 25 is provided on the guide structure 10.
  • a counterweight 18 with a flat drive 6 rolls along the rack 25 up or down.
  • the support means 19 is slightly eccentrically attached to the counterweight.
  • dS is a measure of eccentricity.
  • FIG. 6 An embodiment of a flat drive 6, as it can be used according to the invention is in Fig. 6 shown.
  • the flat drive 6 shown is a permanent magnet synchronous motor which comprises an external toothed rim 7.
  • the permanent magnets 31 are seated on a cylindrical surface and the laminated cores and coils 32 are radially enclosed by the permanent magnets 31.
  • a rotor 33 carries the permanent magnets 31 and the ring gear 7.
  • the stator 34 carries the laminated cores and the coils 32 and extends inside the flat drive 6.
  • the stator 34 is mechanically connected to the counterweight 18 or with a counterweight structure 35.
  • the thickness D1 of the flat drive 6 is preferably less than 100 mm. Preferably, the thickness D1 is less than 80 mm.
  • the diameter D2 is typically about 600 mm.
  • FIG. 7 Another embodiment of a flat drive 6, as it can be used according to the invention is in Fig. 7 shown.
  • the flat drive 6 shown is a so-called tandem arrangement in which two Flat actuators are coaxially assembled.
  • the structure is analogous to that Fig. 6 in which simply a second flat drive is mirror-inverted connected to the same counterweight structure 35.
  • the thickness D3 of the tandem flat drive 6 is preferably less than 200 mm. Preferably, the thickness D3 is less than 160 mm.
  • the diameter D2 is typically about 600 mm.
  • At least one respective counter-roller 24 is provided per flat drive 6 (see, for example, FIG Fig. 5 ) to safely guide the counterweight 18.
  • This counter-roller 24 ensures that the ring gear 7 engages cleanly in the complementary toothing 25.
  • the counter-roller 24 ensures a secure engagement of the sprockets 7 in the complementary teeth 25th
  • Fig. 5 One possible arrangement of such counter rollers 24 is the Fig. 5 refer to.
  • the complementary toothings 25 in the form of racks extend vertically in the elevator shaft along the guides 10.
  • the counter rollers 24 run along surfaces which are parallel to the racks, these surfaces being on an opposite side.
  • guide rails 10.1 are advantageously attached to the guide structures 10 in order to be able to guide the elevator car 5 more precisely, which leads to increased ride comfort and reduced wear.
  • the power and signal supply to the flat drives 6 on the counterweight 18 or on the Counterweights 18 done via a special (hanging) cable in the elevator shaft, or it can be provided on the guide structure 10 sliding contacts or current collector.
  • the flat drives 6 itself and the associated power electronics can be installed on or on the counterweight 18. This leads to a slightly higher weight, which is advantageous because the counterweight 18 can then be dimensioned smaller / lighter.
  • FIG Fig. 8 Another elevator system 100 according to the invention is shown in FIG Fig. 8 shown in a simplified representation.
  • This embodiment is characterized in that the toothed bars serving as complementary toothings 25 are provided with a helical toothing.
  • the teeth of the left rack and the teeth of the right rack are aligned to form an angle that is between 180 degrees (in this case, both racks are straight teeth) and 45 degrees.
  • the corresponding helical gear rims 7 of the flat drives are indicated and it is the counterweight 18 can be seen.
  • FIG Fig. 9 Another elevator device 100 according to the invention is shown in FIG Fig. 9 shown in a simplified representation.
  • This embodiment is characterized in that the toothed rack serving as complementary toothing 25 is provided with a type of herringbone toothing (in the sense of double helical toothing).
  • the sprocket 7 is executed accordingly. This type of gearing leads to self-guidance.
  • the weight of the counterweights 18 is selected so that it together with the / the flat drives 6 and the optional power electronics approximately equal to the weight of the elevator car 5.
  • Such a balancing or a corresponding compensation ensures that the drive must always drive in a defined same direction, which leads to a better ride comfort.
  • holding brakes are provided on the elevator car 5 to ensure safe operation of the elevator installation 100 in all situations.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Claims (12)

  1. Installation d'ascenseur (100) comprenant une cabine d'ascenseur (5) et au moins une structure de guidage (10) et un contrepoids (18) déplaçable le long de la structure de guidage (10), auquel contrepoids est fixé un entraînement servant d'entraînement autopropulsée, la cabine d'ascenseur (5) étant connectée au contrepoids (18) par un moyen porteur (19), la cabine d'ascenseur (5), du fait de sa liaison au contrepoids (18) par le moyen porteur (19), effectuant un deuxième mouvement vertical qui est en sens inverse d'un premier mouvement vertical, et la structure de guidage (10) comprenant un rail de guidage (10.1) disposé de manière stationnaire pour guider la cabine d'ascenseur (5), caractérisée en ce que la structure de guidage (10) comprend une crémaillère (25) disposée de manière stationnaire avec une denture complémentaire (25), sur laquelle le contrepoids (18) peut être déplacé de manière guidée, et en ce qu'un entraînement plat (6) sert d'entraînement qui présente une couronne dentée (7) qui vient en prise par engagement par correspondance géométrique sensiblement dans la denture complémentaire (25), afin de convertir un mouvement de rotation de la couronne dentée (7) en le premier mouvement vertical du contrepoids (18).
  2. Installation d'ascenseur (100) selon la revendication 1, caractérisée en ce que l'entraînement plat (6) est un entraînement plat sans boîte de vitesses.
  3. Installation d'ascenseur (100) selon l'une quelconque des revendications 1 ou 2, caractérisée en ce que l'entraînement plat (6) est un moteur sans balais.
  4. Installation d'ascenseur (100) selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'entraînement plat (6) est un moteur à rotor intérieur ou à rotor extérieur.
  5. Installation d'ascenseur (100) selon l'une quelconque des revendications précédentes, caractérisée en ce que l'installation d'ascenseur (100) a une structure asymétrique qui se caractérise par le fait que la structure de guidage (10) se trouve d'un côté de la cabine d'ascenseur (5) et que le contrepoids (18) avec l'entraînement plat (6) se trouve du côté de la cabine d'ascenseur (5) au niveau duquel se trouve la structure de guidage (10).
  6. Installation d'ascenseur (100) selon la revendication 5, caractérisée en ce que la cabine d'ascenseur (5) est munie d'une installation de porte d'un côté (50), des éléments de porte (21, 22) de l'installation de porte (50) se déplaçant lors de l'ouverture vers le côté de la cabine d'ascenseur (5) au niveau duquel se trouve la structure de guidage (10).
  7. Installation d'ascenseur (100) selon l'une quelconque des revendications précédentes 1 à 4, caractérisée en ce que l'installation d'ascenseur (100) présente une structure essentiellement symétrique qui est caractérisée par le fait que deux structures de guidage (10) et deux contrepoids (18) sont prévus, une première structure de guidage (10) avec un premier contrepoids (18) étant disposée d'un premier côté de la cabine d'ascenseur (5) et une deuxième structure de guidage (10) avec un deuxième contrepoids (18) étant disposée d'un deuxième côté opposé de la cabine d'ascenseur (5).
  8. Installation d'ascenseur (100) selon l'une quelconque des revendications précédentes, caractérisée en ce qu'au moins un rouleau conjugué (24) est prévu sur le contrepoids (18), lequel roule sur la structure de guidage (10) et assure une coopération sûre entre l'entraînement plat (6) et la structure de guidage (10).
  9. Installation d'ascenseur (100) selon l'une quelconque des revendications précédentes, caractérisée en ce que de préférence au moins deux moyens porteurs (19) sont fixés de manière excentrique dans la région supérieure du contrepoids (18).
  10. Installation d'ascenseur (100) selon l'une quelconque des revendications précédentes, caractérisée en ce que le poids du contrepoids (18) est sélectionné de telle sorte qu'il compense, conjointement avec l'entraînement plat (6), approximativement le poids de la cabine d'ascenseur (5), cet équilibrage permettant à l'entraînement plat (6) de toujours entraîner dans une même direction définie.
  11. Installation d'ascenseur (100) selon la revendication 1, caractérisée en ce que le contrepoids (18) est accroché de manière excentrique, afin d'assurer un engagement plus sûr de la couronne dentée (7) dans la denture complémentaire (25).
  12. Installation d'ascenseur (100) selon l'une quelconque des revendications précédentes, caractérisée en ce qu'au moins deux moyens porteurs (19) sont disposés en effectuant une liaison entre la cabine d'ascenseur (5) et le contrepoids (18) ou les contrepoids.
EP09780644.2A 2008-07-23 2009-07-15 Installation d'ascenseur dotée d'un contrepoids automatique Not-in-force EP2303751B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09780644.2A EP2303751B1 (fr) 2008-07-23 2009-07-15 Installation d'ascenseur dotée d'un contrepoids automatique

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP08161001 2008-07-23
EP09780644.2A EP2303751B1 (fr) 2008-07-23 2009-07-15 Installation d'ascenseur dotée d'un contrepoids automatique
PCT/EP2009/059079 WO2010010024A1 (fr) 2008-07-23 2009-07-15 Système d'ascenseur à contrepoids automoteur

Publications (2)

Publication Number Publication Date
EP2303751A1 EP2303751A1 (fr) 2011-04-06
EP2303751B1 true EP2303751B1 (fr) 2013-11-06

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Application Number Title Priority Date Filing Date
EP09780644.2A Not-in-force EP2303751B1 (fr) 2008-07-23 2009-07-15 Installation d'ascenseur dotée d'un contrepoids automatique

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EP (1) EP2303751B1 (fr)
CN (1) CN102105381A (fr)
WO (1) WO2010010024A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106061881B (zh) * 2014-03-05 2018-05-11 因温特奥股份公司 电梯设备的具有多重绕绳方式的驱动装置
US20220356047A1 (en) * 2021-05-05 2022-11-10 Nacereddine Attia Counterweight Drive

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5725074A (en) * 1995-06-02 1998-03-10 Inventio Ag Apparatus for supporting and guiding an elevator
US5984052A (en) * 1997-09-17 1999-11-16 Otis Elevator Company Elevator with reduced counterweight
JPH1192059A (ja) * 1997-09-19 1999-04-06 Ohbayashi Corp 建設用リフト
EP1808399B1 (fr) * 1998-02-26 2009-12-09 Otis Elevator Company Ascenseur à câble élévateur doté d'un contrepoids d'entraînement
DE10014002A1 (de) * 2000-03-22 2001-10-04 Hillenkoetter & Ronsieck Vertikalaufzug
DE10140390B4 (de) * 2001-08-23 2005-12-01 HIRO LIFT Hillenkötter + Ronsieck GmbH Vertikalaufzug
DE20320076U1 (de) * 2003-12-23 2004-03-04 Wittur Ag Antriebssystem für enge Triebwerksräume
DE20320004U1 (de) * 2003-12-22 2004-02-26 Wittur Ag Treibscheibenaufzug in Rucksackbauweise

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WO2010010024A1 (fr) 2010-01-28
CN102105381A (zh) 2011-06-22
EP2303751A1 (fr) 2011-04-06

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