EP2303751B1 - Elevator assembly with self-driving counterbalance - Google Patents

Elevator assembly with self-driving counterbalance 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
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EP
European Patent Office
Prior art keywords
counterweight
lift
drive
guide structure
flat
Prior art date
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Not-in-force
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EP09780644.2A
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German (de)
French (fr)
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EP2303751A1 (en
Inventor
Hans Kocher
Stefan Hugel
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Inventio AG
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Inventio AG
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Priority to EP09780644.2A priority Critical patent/EP2303751B1/en
Publication of EP2303751A1 publication Critical patent/EP2303751A1/en
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    • 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)

Description

Die Erfindung betrifft eine Aufzugsanlage mit einer Aufzugskabine, mit mindestens einer seitlichen Führungsstruktur und mit mindestens einem entlang der Führungsstruktur verfahrbaren Gegengewicht, wobei das Gegengewicht mit einem Eigenantrieb versehen und durch Tragmittel mit der Aufzugskabine verbunden ist.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.

Herkömmlich Traktionsaufzüge umfassen eine Aufzugskabine, die über ein Tragmittel mit einem Gegengewicht verbunden ist. Das Tragmittel (Drahtseil, Riemen, usw.) wird über einen stationären Traktionsantrieb angetrieben. Sowohl die Aufzugskabine, als auch das Gegengewicht sind über starre Führungen im Schacht geführt.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.

Nachteile dieser herkömmlichen Traktionsaufzüge sind unter anderem:

  • Platzbedarf des Antriebs im Aufzugschacht;
  • Reibwertstreuung am Tragmittel, was teilweise zu einer Traktion führt, die entweder zu gross oder zu klein ist. Ausserdem kann die Traktion durch Störeinflüsse, z.B. durch öl, beeinträchtigt werden.
  • Grosse, nicht genutzte "Totmasse" des Gegengewichts;
  • Hoher Installationsaufwand für den stationären Antrieb und die Gegengewichtsführung.
Disadvantages of these conventional traction elevators include:
  • Space requirement of the drive in the hoistway;
  • Friction spread on the suspension element, which sometimes leads to a traction that is either too big or too small. In addition, the traction can be affected by interference, eg by oil.
  • Large, unused "dead weight" of the counterweight;
  • High installation effort for the stationary drive and the counterweight guide.

Es sind auch andere Konfigurationen bekannt, bei denen ein Antrieb z.B. an dem Gegengewicht angeordnet ist. Ein Beispiel einer solchen Anordnung ist aus der Patentanmeldung EP 1 808 399 A2 bekannt, in der ein Gegengewicht mit Eigenantrieb und eine entsprechende Aufzugsanlage beschrieben sind. An dem Gegengewicht sind ein Antrieb und eine Traktionsrolle vorgesehen. Die Aufzugskabine ist an demselben Tragmittel mittels Unterschlingung aufgehängt, das auch das Gegengewicht trägt.There are also known other configurations in which a drive is arranged for example on the counterweight. An example of such an arrangement is from the patent application EP 1 808 399 A2 known, in which a self-propelled counterweight and a corresponding elevator system are described. On the counterweight, a drive and a traction roller are provided. The Elevator car is suspended from the same support means by means of underlayment, which also carries the counterweight.

Des Weiteren offenbart diese Veröffentlichungsschrift für die Führung des Gegengewichts Führungsschienen, jedoch für den Antrieb des Gegengewichts - mittels zylindrischer Motoren oder Flachmotoren - ein zu den Führungsschienen und zu dem Tragmittel separates Treibmittel, in Form eines flexiblen Treibriemens, der in dem Aufzugsschacht gespannt ist. An diesem Treibriemen laufen antreibende Reibräder und hierzu versetzt angeordnete Gegenrollen. Optional können der Treibriemen und die Antriebsräder verzahnt sein.Furthermore, 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. Optionally, the drive belt and the drive wheels may be toothed.

Es ist ein Nachteil dieser Konfiguration mit Eigenantrieb am Gegengewicht, dass die Treibfunktion nicht einfach zu beherrschen ist. Ausserdem ist die Lebensdauer des dort separat vorgeschlagenen Treibmittels und auch des Tragmittels aufgrund der erforderlichen Umschlingung und somit auftretenden Walkarbeit beschränkt. Ein weiterer Nachteil ist die Kostenintensität einer Lösung, die den Antrieb und die Führung des Gegengewichts voneinander trennt.It is a disadvantage of this self-propelled configuration on the counterweight that the propulsion function is not easy to master. In addition, the life of the separately proposed propellant and the support means is limited due to the required wrap and thus occurring flexing. Another disadvantage is the cost intensity of a solution that separates the drive and the guidance of the counterweight.

Die Offenlegungsschrift DE-A1-101 40 390 hingegen offenbart statt einem separaten, flexiblen Treibriemen starre Ablaufbahnen in Form von Profilscheinen, die gleichzeitig die Führungsfunktion für die Bewegung des Gegengewichts übernehmen. Der Antrieb erfolgt relativ aufwändig über Reibräder und versetzt angeordnete Gegenräder und vier Antriebsmotoren, die in einem Chassis angeordnet sind und hierin gelagerte Antriebswellen antreiben. Das Chassis ist fest mit dem Gegengewicht verbunden.The publication DE-A1-101 40 390 However, instead of a separate, flexible drive belt rigid runways in the form of profiled bills, which simultaneously assume the leadership function for the movement of the counterweight. The drive is relatively complex via friction wheels and staggered mating wheels and four drive motors, which are arranged in a chassis and driving drive shafts stored therein. The chassis is firmly connected to the counterweight.

Auch die Veröffentlichungsschrift WO-A1-01/70614 offenbart eine ähnlich aufwändige Rahmenkonstruktion mit Antriebswellen und mindestens einem Antriebmotor.Also the publication font WO-A1-01 / 70614 discloses a similarly complex frame construction with drive shafts and at least one drive motor.

Es stellt sich die Aufgabe, eine Aufzugsanlage zu konzipieren, die weniger Platz als die herkömmlichen Traktionsaufzüge braucht und die möglichst einfach und mit wenigen Mitteln zu realisieren ist.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.

Ausserdem soll eine solche Aufzugsanlage möglichst kostengünstig sein und trotzdem einen hohen Fahrkomfort und grosse Sicherheit bieten.In addition, such a lift system should be as inexpensive as possible and still offer a high level of ride comfort and great security.

Die Aufgabe wird gelöst durch eine Aufzugsanlage, bei der mindestens ein Gegengewicht selbstfahrend ist. Zu diesem Zweck ist an diesem Gegengewicht ein Flachantrieb befestigt, wobei der Flachantrieb mit einer stationär in der Aufzugsanlage angebrachten Führungsstruktur in Wechselwirkung steht. Die Führungsstruktur dient einerseits als Führungsmittel für das Gegengewicht und anderseits nimmt die Führungsstruktur Antriebskräfte des Flachantriebs auf. Die Aufzugskabine bewegt sich dadurch, dass eine Drehbewegung des Flachantriebs am Gegengewicht in eine Vertikalbewegung des Gegengewichts entlang der Führungsstruktur umgewandelt wird. Da die Aufzugskabine über die Tragmittel mit dem Gegengewicht verbunden ist, folgt die Aufzugskabine der Bewegung des Gegengewichts, wobei die Bewegungsrichtungen entgegengesetzt sind.The object is achieved by an elevator installation in which at least one counterweight is self-propelled. For this purpose, a flat drive is attached to this counterweight, with the flat drive interacting with a guide structure mounted stationarily in the elevator installation. On the one hand, 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.

Gemäss Erfindung ist eine komplementäre Verzahnung an der Führungsstruktur vorgesehen. Die Aufzugskabine bewegt sich dadurch, dass eine Drehbewegung eines Zahnkranzes eines Flachantriebs am Gegengewicht in eine vertikalbewegung des Gegengewichts entlang der komplementären Verzahnung umgewandelt wird. Da die Aufzugskabine über die Tragmittel mit dem Gegengewicht verbunden ist, folgt die Aufzugskabine der Bewegung des Gegengewichts, wobei die Bewegungsrichtungen entgegengesetzt sind.According to the invention, 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.

In einer weiterhin bevorzugten Ausführungsform ist ein Gegengewicht vorgesehen, das asymmetrisch auf einer Seite der Aufzugskabine angeordnet ist. An diesem Gegengewicht ist mindestens ein Flachantrieb angebracht.In a further preferred embodiment, 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.

In einer anderen bevorzugten Ausführungsform sind zwei Gegengewichte vorgesehen und an jedem dieser Gegengewichte ist mindestens je ein Flachantrieb angebracht. Diese Gegengewichte sind vorzugsweise symmetrisch zur Aufzugskabine angeordnet.In another preferred embodiment, 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.

In einer weiterhin bevorzugten Ausführungsform ist pro Flachantrieb mindestens je eine Gegenrolle vorgesehen, um das Gegengewicht sicher führen zu können.In a further preferred embodiment, at least one respective counter-roller is provided per flat drive in order to be able to guide the counterweight safely.

Besonders bevorzugt ist eine Anordnung, bei welcher die Tragmittel exzentrisch im oberen Bereich des Gegengewichts so befestigt sind, dass asymmetrisch auftretende Kräfte besser abgefangen werden. Ausserdem führt die exzentrische Aufhängung des Gegengewichts zu einem sichereren Eingriff der Verzahnungen bei denjenigen Ausführungsformen, bei denen eine solche Verzahnung vorgesehen ist.Particularly preferred is an arrangement in which the support means are mounted eccentrically in the upper region of the counterweight so that asymmetrically occurring forces are better absorbed. In addition, the eccentric suspension of the counterweight leads to a safer engagement of the teeth in those embodiments in which such a toothing is provided.

Es wird als ein Vorteil der Erfindung angesehen, dass eine klare Trennung zwischen Tragfunktion auf der einen seite und Antriebs- sowie Führungsfunktion auf der anderen Seite gegeben ist. Die Tragelemente, oder deren Komponenten, können daher unabhängig von den Antriebs- sowie Führungselementen, oder deren Komponenten, optimiert werden. Das elastische Verbindungsmittel zwischen Aufzugskabine und Gegengewicht ist nur noch ein Tragmittel - oder vorzugsweise kommen hier mehrere Tragmittel zum Einsatz - und kann/können dementsprechend dimensioniert werden.It is considered as an advantage of the invention that there is a clear separation between supporting function on the one hand and driving and guiding function on the other. 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.

Die Erfindung führt zu einer längeren Lebensdauer für das/die Tragmittel, da keine (Oberflächen-) Traktionskräfte in das/die Tragmittel eingeleitet werden.The invention leads to a longer life for the / the support means, since no (surface) traction forces are introduced into the / the support means.

Gemäss Erfindung wirken die Antriebskräfte des/der Flachantriebe nicht auf das/die Tragmittel, die als Verbindung zwischen Aufzugskabine und Gegengewicht(en) dienen, sondern sie wirken auf Verzahnungen an der Führungsstruktur im oder am Aufzugsschacht.According to the invention, 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.

Gemäss Erfindung übernimmt bei einem Teil der Ausführungsformen die komplementäre Verzahnung durch die Wechselwirkung mit dem/den zahnkränzen der Flachantriebe neben der Antriebsfunktion auch mindestens einen Teil der Führungsfunktion für das/die Gegengewicht(e).According to the invention, in a part of the embodiments, 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.

Vorteilhafterweise wird bei dem erfindungsgemässen Antriebskonzept die Aufzugskabine mit einer Kabinenbremse ausgerüstet. Dies hat folgende Vorteile:

  • o Die Komplexität des Antriebs und seine Baugrösse reduzieren sich drastisch. Das führt zu weniger Teilen und zu einem geringeren Wartungsaufwand.
  • o Die elastische Dehnung des Tragmittels bzw. der Tragmittel zwischen Aufzugskabine und Gegengewicht spielt keine Rolle mehr, da die Aufzugskabine immer in der Haltestelle fixiert werden kann. Das/die Tragmittel muss dann nur noch nach dem Kriterium der Zuglast dimensioniert werden.
  • o Im Falle eines Antriebs- oder Stromausfalls kann die einfache Zugänglichkeit zum Flachantrieb am Gegengewicht nicht immer gewährleistet werden. Mit einer Kabinenbremse ist jedoch eine einfache Zugänglichkeit möglich, was die Befreiung von in der Aufzugskabine eingeschlossenen Personen beschleunigt.
Advantageously, in the drive concept according to the invention, the elevator car is equipped with a car brake. This has the following advantages:
  • o The complexity of the drive and its size are drastically reduced. This leads to fewer parts and lower maintenance.
  • o The elastic elongation of the support means or the support means between the elevator car and counterweight does not matter because the elevator car can always be fixed in the stop. The suspension element (s) then only has to be dimensioned according to the criterion of the tensile load.
  • o In the event of a power or power failure, easy access to the flat drive on the counterweight can not always be guaranteed. With a car brake, however, easy accessibility is possible, which speeds up the liberation of trapped persons in the elevator car.

Neben den Flachantrieben selbst kann auch die zugehörige Leistungselektronik (ACVF = Frequenzumrichter mit variabler Frequenz) auf oder an dem Gegengewicht installiert werden. Damit kann auch dessen Masse als wirksame Gegengewichtsmasse genutzt werden. Ausserdem werden EMV-Störungen (elektromagnetische Störungen) durch die kurze Verbindung zwischen ACVF und Flachantrieb(en) minimiert. Die Aufzugsanlage kann modular aufgebaut werden. D.h., in Abhängigkeit der Nutzlast wird die Anzahl der am Gegengewicht montierten Flachantriebseinheiten variiert.In addition to the flat drives themselves, the associated power electronics (ACVF = Variable Frequency Inverters) can also be installed on or at the counterweight. Thus, its mass can be used as an effective countermass mass. In addition, EMC (electromagnetic 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.

Durch die Distanz zur Aufzugskabine und die Dämpfungseigenschaft der langen Tragmittel werden durch den Flachantrieb induzierte Vibrationen und Geräusche reduziert bzw. eliminiert.Due to the distance to the elevator car and the damping property of the long support means vibrations and noises induced by the flat drive are reduced or eliminated.

Anhand der beiliegenden Figuren wird die vorliegende Erfindung näher erläutert.Reference to the accompanying figures, the present invention will be explained in more detail.

Es zeigen:

  • Fig. 1 eine Draufsicht einer ersten erfindungsgemässen Aufzugsanlage in einer vereinfachten Darstellung.
  • Fig. 2 eine Draufsicht einer weiteren erfindungsgemässen Aufzugsanlage in einer vereinfachten Darstellung.
  • Fig. 3A eine Seitenansicht eines Teils einer weiteren erfindungsgemässen Aufzugsanlage in einer vereinfachten Darstellung.
  • Fig. 3B eine Draufsicht der Fig. 3A.
  • Fig. 4 eine Seitenansicht eines Teils einer weiteren erfindungsgemässen Aufzugsanlage in einer vereinfachten Darstellung.
  • Fig. 5 eine Seitenansicht eines Teils einer weiteren erfindungsgemässen Aufzugsanlage in einer vereinfachten Darstellung.
  • Fig. 6 eine Schnittdarstellung eines ersten Flachantriebs, der in einer weiteren erfindungsgemässen Aufzugsanlage eingesetzt werden kann.
  • Fig. 7 eine Schnittdarstellung eines weiteren Flachantriebs, der in einer weiteren erfindungsgemässen Aufzugsanlage eingesetzt werden kann.
  • Fig. 8 eine Seitenansicht einer weiteren erfindungsgemässen Aufzugsanlage in einer vereinfachten Darstellung.
  • Fig. 9 eine Seitenansicht einer weiteren erfindungsgemässen Aufzugsanlage in einer vereinfachten Darstellung.
Show it:
  • Fig. 1 a plan view of a first elevator system according to the invention in a simplified representation.
  • Fig. 2 a plan view of another elevator system according to the invention in a simplified representation.
  • Fig. 3A a side view of part of another elevator system according to the invention in a simplified representation.
  • Fig. 3B a top view of Fig. 3A ,
  • Fig. 4 a side view of part of another elevator system according to the invention in a simplified representation.
  • Fig. 5 a side view of part of another elevator system according to the invention in a simplified representation.
  • Fig. 6 a sectional view of a first flat drive, which can be used in a further elevator system according to the invention.
  • Fig. 7 a sectional view of another flat drive, which can be used in a further inventive elevator system.
  • Fig. 8 a side view of another elevator system according to the invention in a simplified representation.
  • Fig. 9 a side view of another elevator system according to the invention in a simplified representation.

In der Fig. 1 ist eine erste erfindungsgemässe Aufzugsanlage 100 dargestellt. Es handelt sich um eine asymmetrische Konfiguration, da auf einer Seite einer Aufzugskabine 5 eine Führungsstruktur 10 mit einem Gegengewicht 18 mit Eigenantrieb angeordnet ist. Auf der anderen, gegenüberliegenden Seite der Aufzugskabine 5 befindet sich eine einfache Führungsschiene (z.B. in T-Form), die als Führungsstruktur 10 dient. Die Aufzugsanlage 100 kann z.B. in einem Aufzugsschacht 2 eines Gebäudes installiert sein. An dem Gegengewicht 18 ist ein Flachantrieb 6 angebracht, der als Eigenantrieb dient. Der Flachantrieb 6 umfasst mindestens einen Zahnkranz 7, der in eine komplementäre Verzahnung 25 eingreift, die z.B. an der Führungsstruktur 10 vorgesehen ist. Das Gegengewicht 18 ist über Tragmittel 19 mit der Aufzugskabine 5 verbunden. Vorzugsweise werden die Tragmittel 19 über entsprechende Umlenkrollen (z.B. am oberen Schachtende) umgelenkt.In the Fig. 1 a first elevator installation 100 according to the invention 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. On the counterweight 18, 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. Preferably, the support means 19 are deflected via corresponding deflection rollers (eg at the upper shaft end).

Durch diese Art der Anordnung wird eine Drehbewegung des Zahnkranzes 7 umgewandelt in eine Vertikalbewegung des Gegengewichts 18 und somit in eine entgegengesetzte vertikalbewegung der Aufzugskabine 5. Es besteht eine im Wesentlichen formschlüssige Verbindung zwischen dem Zahnkranz 7 und der komplementären Verzahnung 25.By this type of arrangement, a rotational movement of the ring gear 7 is converted into a vertical movement of the counterweight 18 and thus in an opposite vertical movement of the elevator car 5. There is an essentially positive connection between the ring gear 7 and the complementary teeth 25th

Je nach Drehrichtung des Flachantriebs 6 läuft dieser zusammen mit dem Gegengewicht 18 entlang der komplementären Verzahnung 25 nach oben oder nach unten.Depending on the direction of rotation of the flat drive 6, this runs together with the counterweight 18 along the complementary toothing 25 upwards or downwards.

Auf der Oberseite der Aufzugskabine 5 sind seitlich einer Mittellinie L-L (symmetrisch zu der Mittellinie L-L) Aufhängepunkte 8 für die Tragorgane 19 (Tragmittel) vorhanden. Die Tragorgane 19 führen jeweils zum oberen Ende der Aufzugsanlage 100, um dort über die genannten Umlenkrollen (nicht gezeigt) zu den Aufhängepunkten bzw. Befestigungspunkten 8 geführt zu werden. Diese Befestigungspunkte 8 liegen in einer Vertikalebene BV, die ungefähr zusammenfällt mit der Ebene in der Führungsschienen 10.1 der Führungsstrukturen 10 angebracht sind.On the upper side of the elevator car 5 suspension points 8 for the support members 19 (support means) 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.

An der Aufzugskabine 5 kann eine Türanlage 50 mit Kabinentüren 21 und Schachttüren 22 vorgesehen sein. Vorzugsweise kommt eine asymmetrische Türanlage 50 bei der asymmetrischen Konfiguration zum Einsatz, wie in Fig. 1 gezeigt. Die Aufzugskabine 5 kann so mit der asymmetrischen Türanlage 50 ausgerüstet sein, dass sich die Türelemente 21, 22 der Türanlage 50 beim Öffnen zu derjenigen Seite der Aufzugskabine 5 hin verschieben, wo sich auch die Führungsstruktur 10 mit der komplementären Verzahnung 25 befindet. Die Verschiebung der Türelemente 21, 22 ist in Fig. 1 gestrichelt gezeigt.At the elevator car 5, a door system 50 may be provided with car doors 21 and shaft doors 22. Preferably, 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.

Bei der in Fig. 1 gezeigten Ausführungsform sind zwei Flachantriebe 6 nebeneinander (parallel zueinander) in einer koaxialen Tandem-Konfiguration angeordnet (siehe auch Fig. 7). Jeder Flachantrieb 6 hat einen eigenen Zahnkranz 7, der in eine eigene komplementäre Verzahnung 25 eingreift. Es kann aber auch nur ein einziger Flachantrieb 6 pro Gegengewicht 18 vorgesehen sein (siehe z.B. Fig. 9).At the in Fig. 1 shown embodiment, 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 ).

Es können gemäss Erfindung verschiedene Flachantriebe 6 eingesetzt werden. Besonders bevorzugt sind die folgenden Arten von Flachantrieben 6:

  • getriebelose Flachantriebe;
  • bürstenlose Motoren, insbesondere bürstenlose gleichstromgespeiste Motoren, vorzugsweise Permanentmagnet-Synchronmotoren;
  • vorzugsweise Aussenläufermotoren;
  • Innenläufermotoren.
Various flat drives 6 can be used according to the invention. Particularly preferred are the following types of flat drives 6:
  • gearless flat drives;
  • brushless motors, in particular brushless DC-powered motors, preferably permanent magnet synchronous motors;
  • preferably external rotor motors;
  • Internal rotor motors.

Diese Flachantriebe 6 werden auch als Drehmomentmotoren bezeichnet. Das Gegengewicht 18 ist als Last direkt an dem Flachantrieb 6 befestigt. Ein Stator 34 ist direkt an dem Gegengewicht 18 oder an einer Gegengewichtsstruktur 35 befestigt. Es bedarf keiner Übertragungsmittel, wie zum Beispiel Getriebe, Riemen, Ketten, etc. Daher werden diese Flachantriebe 6 auch als Direktantriebe bezeichnet.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.

Es ist ein Vorteil dieser Flachantriebe 6, dass sie ein kompaktes, platzsparendes Design aufweisen und daher problemlos in oder an dem Gegengewicht 18 angeordnet werden können. Ausserdem haben derartige Flachantriebe 6 quasi keine mechanischen Reibungsverluste und sind effizient. Besonders bevorzugt sind Flachantriebe 6 mit gehäuse- oder rahmenlosem Design. Derartige Flachantriebe 6 können nach Bedarf verkleidet und umbaut werden. Daher sind sie besonders gut geeignet für die vorliegenden Anwendungen.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.

Eine weitere Ausführungsform der Erfindung ist in Fig. 2 gezeigt. In dieser Figur ist eine schematische Draufsicht einer Aufzugsanlage 100 zu sehen. Es handelt sich um eine symmetrische Konfiguration. Die Aufzugsanlage 100 umfasst eine Aufzugskabine 5, zwei vertikale seitliche Führungsstrukturen 10 und zwei entlang der Führungsstrukturen 10 verfahrbare Gegengewichte 18. Ausserdem ist jedes der Gegengewichte 18 mit einem Eigenantrieb versehen. Die Aufzugskabine 5 ist durch Tragmittel 19 mit den Gegengewichten 18 verbunden. Es handelt sich auch in diesem Fall um selbstfahrende Gegengewichte 18, an deren Oberseite je ein Flachantrieb 6 befestigt ist. Jeder Flachantrieb 6 weist mindestens einen Zahnkranz 7 auf, der in komplementäre Verzahnungen 25 (z.B. in Form von Zahnstangen) eingreift, die an den Führungsstrukturen 10 vorgesehen sind. Durch diese Art der Konfiguration werden Drehbewegungen der Zahnkränze 7 in Vertikalbewegungen der Gegengewichte 18 umgewandelt.Another embodiment of the invention is in Fig. 2 shown. In this figure, 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. In addition, 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. By this type of configuration rotational movements of the sprockets 7 are converted into vertical movements of the counterweights 18.

An der Aufzugskabine 5 kann eine Türanlage 50 mit Kabinentüren 21 und Schachttüren 22 vorgesehen sein. Vorzugsweise kommt eine symmetrische Türanlage 50 bei einer symmetrischen Konfiguration zum Einsatz, wie in Fig. 2 gezeigt. Die Aufzugskabine 5 kann so mit der symmetrischen Türanlage 50 ausgerüstet sein, dass sich die Türelemente 21, 22 der Türanlage 50 beim Öffnen zu beiden Seiten der Aufzugskabine 5 hin verschieben. Die Verschiebung der Türelemente 21, 22 ist in Fig. 2 gestrichelt gezeigt.At the elevator car 5, a door system 50 may be provided with car doors 21 and shaft doors 22. Preferably, 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.

Die Enden der Tragmittel 19 sind an sogenannten Befestigungspunkten 8 an der Aufzugskabine 5 befestigt. Diese Befestigungspunkte 8 liegen in einer Vertikalebene BV, die ungefähr mit der Ebene zusammenfällt, in der die Führungsschienen 10.1 angebracht sind. Die Befestigungspunkte 8 liegen seitlich einer Mittellinie L-L (symmetrisch zu der Mittellinie L-L).The ends of the support means 19 are attached to so-called attachment points 8 on the elevator car 5. These 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).

An den Führungsstrukturen 10 in Fig. 2 sind im gezeigten Beispiel Führungsschienen 10.1 angebracht, um die Aufzugskabine 5 präziser führen zu können. Ausserdem können Führungsflächen z.B. im Inneren der Führungsstrukturen 10 vorgesehen sein, entlang denen Gegenrollen 24 laufen können. Diese Führungsflächen verlaufen vorzugsweise parallel zu der als komplementäre Verzahnung 25 dienenden Zahnstange.At the guide structures 10 in Fig. 2 guide rails 10.1 are mounted in the example shown in order to perform the elevator car 5 more precise. In addition, 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.

Auch bei der in Fig. 2 gezeigten Ausführungsform sind pro Gegengewicht 18 zwei Flachantriebe 6 nebeneinander (parallel zueinander) in einer koaxialen Tandem-Konfiguration angeordnet (siehe auch Fig. 7). Jeder Flachantrieb 6 hat einen eigenen Zahnkranz 7, der in eine eigene komplementäre Verzahnung 25 eingreift. Es kann aber auch nur ein einziger Flachantrieb 6 pro Gegengewicht 18 vorgesehen sein (siehe z.B. Fig. 9).Also at the in Fig. 2 shown embodiment, 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 ).

Eine weitere Ausführungsform der Erfindung ist in Fig. 3A und Fig. 3B gezeigt. In Fig. 3A ist eine schematische Seitenansicht eines Teils einer Aufzugsanlage 100 zu sehen, während Fig. 3B eine schematische Draufsicht zeigt. Die Aufzugsanlage 100 umfasst ein Gegengewicht 18 mit zwei vertikalen seitlichen Verzahnungen 25. Das Gegengewicht 18 trägt zwei Flachantriebe 6. Jeder der beiden Flachantriebe 6 hat einen Zahnkranz 7, der in die Verzahnungen 25 eingreift. Vorzugsweise sind Gegenrollen 24 auf der Gegenseite der Zahnkränze 7 so angeordnet, dass die Verzahnungen 25 zwischen den Zahnkränzen 7 und den Gegenrollen 24 verlaufen. Die Aufzugskabine (nicht gezeigt) ist durch Tragmittel 19 mit dem Gegengewicht 18 verbunden. Es handelt sich auch in diesem Fall um ein selbstfahrendes Gegengewicht 18. Durch diese Art der Konfiguration, wird eine Drehbewegung der Zahnkränze 7 umgewandelt in eine Vertikalbewegung des Gegengewichts 18.Another embodiment of the invention is in FIGS. 3A and 3B shown. In 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. Preferably 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. By this type of configuration, a rotational movement of the sprockets 7 is converted into a vertical movement of the counterweight 18th

Auch im Fall der in Fig. 3A und 3B gezeigten Ausführungsform ist jeder der Flachantriebe 6 doppelt ausgeführt und weist entsprechend je zwei Zahnkränze 7 auf, wie in der Draufsicht in Fig. 3B zu erkennen ist. vorzugsweise trägt das Gegengewicht 18 die Leistungselektronik (ACVF), wie in Fig. 3A angedeutet.Also in the case of in FIGS. 3A and 3B shown embodiment, 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. Preferably, the counterweight 18 carries the power electronics (ACVF), as in Fig. 3A indicated.

Eine weitere Ausführungsform ist in Fig. 4 gezeigt. Diese weitere Ausführungsform ist nur ansatzweise beschrieben, da sie im Wesentlichen der in Fig. 3A und 3B beschriebenen Ausführungsform entspricht. Sie weist im gezeigten Fall vier Flachantriebe 6 auf. Dadurch wird die Förderleistung erhöht. Eine solche Konfiguration eignet sich zum Beispiel für grössere Aufzugskabinen und/oder für das Bewegen grösserer Lasten.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.

In Fig. 5 ist eine weitere Ausführungsform stark schematisiert dargestellt. Zu erkennen ist eine hohle Führungsstruktur 10 in deren Inneren I sich zwei Gegenrollen 24 bewegen. Aussen ist eine Zahnstange 25 an der Führungsstruktur 10 vorgesehen. Ein Gegengewicht 18 mit einem Flachantrieb 6 rollt entlang der Zahnstange 25 auf- oder abwärts. Vorzugsweise ist das Tragmittel 19 leicht exzentrisch an dem Gegengewicht befestigt. dS ist ein Mass für die Exzentrizität.In Fig. 5 is a further embodiment shown in a highly schematic. Evident is a hollow guide structure 10 in the interior I move two counter-rollers 24. Outside, 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. Preferably, the support means 19 is slightly eccentrically attached to the counterweight. dS is a measure of eccentricity.

Eine Ausführungsform eines Flachantriebs 6, wie er gemäss Erfindung eingesetzt werden kann, ist in Fig. 6 gezeigt. Bei dem gezeigten Flachantrieb 6 handelt es sich um einen Permanentmagnet-Synchronmotor, der einen aussenliegenden Zahnkranz 7 umfasst. Die Permanentmagnete 31 sitzen an einer Zylinderfläche und die Blechpakete und Spulen 32 werden von den Permanentmagneten 31 radial umschlossen. Ein Rotor 33 trägt die Permanentmagnete 31 sowie den Zahnkranz 7. Der Stator 34 trägt die Blechpakete und die Spulen 32 und erstreckt sich im Inneren des Flachantriebs 6. Der Stator 34 ist mechanisch mit dem Gegengewicht 18 oder mit einer Gegengewichtsstruktur 35 verbunden.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.

Die Dicke D1 des Flachantriebs 6 beträgt vorzugsweise weniger als 100 mm. Vorzugsweise beträgt die Dicke D1 weniger als 80 mm. Der Durchmesser D2 beträgt typischerweise ca. 600 mm.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.

Eine weitere Ausführungsform eines Flachantriebs 6, wie er gemäss Erfindung eingesetzt werden kann, ist in Fig. 7 gezeigt. Bei dem gezeigten Flachantrieb 6 handelt es sich um eine sogenannte Tandemanordnung, bei der zwei Flachantriebe koaxial aneinandergebaut sind. Der Aufbau ist analog zu dem aus Fig. 6, wobei einfach ein zweiter Flachantrieb spiegelverkehrt mit der gleichen Gegengewichtsstruktur 35 verbunden ist.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.

Die Dicke D3 des Tandem-Flachantriebs 6 beträgt vorzugsweise weniger als 200 mm. Vorzugsweise beträgt die Dicke D3 weniger als 160 mm. Der Durchmesser D2 beträgt typischerweise ca. 600 mm.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.

In einer bevorzugen Ausführungsform ist pro Flachantrieb 6 mindestens je eine Gegenrolle 24 vorgesehen (siehe z.B. Fig. 5), um das Gegengewicht 18 sicher führen zu können. Diese Gegenrolle 24 stellt sicher, dass der Zahnkranz 7 sauber in die komplementäre Verzahnung 25 eingreift. Die Gegenrolle 24 sorgt für einen sicheren Eingriff der Zahnkränze 7 in die komplementären Verzahnungen 25.In a preferred embodiment, 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

Eine mögliche Anordnung solcher Gegenrollen 24 ist der Fig. 5 zu entnehmen.One possible arrangement of such counter rollers 24 is the Fig. 5 refer to.

Bei einem Teil der Ausführungsformen verlaufen die komplementären Verzahnungen 25 in Form von Zahnstangen vertikal im Aufzugsschacht entlang der Führungen 10. Die Gegenrollen 24 laufen entlang von Flächen, die parallel zu den Zahnstangen liegen, wobei sich diese Flächen auf einer gegenüberliegenden Seite befinden.In a part of the embodiments, 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.

Bei einer anderen Ausführungsform sind vorteilhafterweise an den Führungsstrukturen 10 Führungsschienen 10.1 angebracht, um die Aufzugskabine 5 präziser führen zu können, was zu einem erhöhten Fahrkomfort und zu reduziertem Verschleiss führt.In another embodiment, 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.

Gemäss Erfindung kann die Energie- und Signalzuführung zu den Flachantrieben 6 an dem Gegengewicht 18 oder an den Gegengewichten 18 über ein spezielles (Hänge-)Kabel im Aufzugsschacht erfolgen, oder es können an der Führungsstruktur 10 Schleifkontakte oder Stromabnehmer vorgesehen sein. Neben den Flachantrieben 6 selbst kann auch die zugehörige Leistungselektronik auf oder an dem Gegengewicht 18 installiert werden. Dies führt zu einem etwas höheren Gewicht, was von Vorteil ist, weil das Gegengewicht 18 dann kleiner/leichter dimensioniert werden kann.According to the invention, 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. In addition to 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.

Eine weitere erfindungsgemässe Aufzugsanlage 100 ist in Fig. 8 in einer vereinfachten Darstellung gezeigt. Diese Ausführungsform zeichnet sich dadurch aus, dass die als komplementäre Verzahnungen 25 dienenden Zahnstangen mit einer Schrägverzahnung versehen sind. Vorzugsweise sind die zähne der linken Zahnstange und die Zähne der rechten Zahnstange so ausgerichtet, dass sie einen Winkel bilden, der zwischen 180 Grad (in diesem Fall haben beide Zahnstangen eine gerade Verzahnung) und 45 Grad liegt. In Fig. 8 sind die entsprechenden schrägverzahnten Zahnkränze 7 der Flachantriebe angedeutet und es ist das Gegengewicht 18 zu erkennen. Dadurch, dass zwei Schrägverzahnungen zum Einsatz kommen, übernimmt die Paarung aus Zahnstangen und Zahnkränzen 7 neben der Antriebsfunktion auch eine Führungsfunktion für das Gegengewicht 18. Die in Fig. 8 gezeigte Ausführungsform eignet sich besonders für Tandem-Flachantriebe.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. Preferably, 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. In Fig. 8 the corresponding helical gear rims 7 of the flat drives are indicated and it is the counterweight 18 can be seen. The fact that two helical gears are used, the pairing of racks and sprockets 7 takes in addition to the drive function and a guiding function for the counterweight 18. Die in Fig. 8 embodiment shown is particularly suitable for tandem flat drives.

Eine weitere erfindungsgemässe Aufzugseinrichtung 100 ist in Fig. 9 in einer vereinfachten Darstellung gezeigt. Diese Ausführungsform zeichnet sich dadurch aus, dass die als komplementäre Verzahnung 25 dienende Zahnstange mit einer Art Heringbone-Verzahnung (im Sinne einer Doppelschrägverzahnung) versehen ist. Der Zahnkranz 7 ist entsprechend ausgeführt. Diese Art der Verzahnung führt zu einer Selbstführung.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.

Vorzugsweise wird das Gewicht der Gegengewichte 18 so gewählt, dass es samt des/der Flachantriebe 6 und der optionalen Leistungselektronik ungefähr das Gewicht der Aufzugskabine 5 ausgleicht. Durch eine derartige Ausbalancierung oder einen entsprechenden Ausgleich wird erreicht, dass der Antrieb immer in eine definiert gleiche Richtung treiben muss, was zu einem besseren Fahrkomfort führt.Preferably, 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.

Vorzugsweise sind Haltebremsen an der Aufzugskabine 5 vorgesehen, um eine sichere Funktion der Aufzugsanlage 100 in allen Situationen zu gewährleisten.Preferably, holding brakes are provided on the elevator car 5 to ensure safe operation of the elevator installation 100 in all situations.

Claims (12)

  1. Lift system (100) comprising a lift car (5), at least one guide structure (10) and a counterweight (18) which can be moved along the guide structure (10) and to which a drive which serves as self-propelling drive is fastened, the lift car (5) being connected to the counterweight (18) by a suspension means (19), the lift cab (5) performing a second vertical movement as a result of the connection of the lift car (5) to the counterweight (18) by the suspension means (19), which second vertical movement is inverted with respect to a first vertical movement, and wherein the guide structure (10) comprising a guide rail (10.1) which is arranged in a stationary manner in order to guide the lift car (5), characterized in that the guide structure (10) comprises a toothed rack (25) which is arranged in a stationary manner and has a complementary toothing system (25), on which the counterweight (18) can be moved in a guided manner, and in that a flat drive (6) serves as drive which has a crown gear (7) which engages substantially into the complementary toothing system (25) in a positively locking manner, in order to convert a rotational movement of the crown gear (7) into the first vertical movement of the counterweight (18).
  2. Lift system (100) according to Claim 1, characterized in that the flat drive (6) is a gearless flat drive.
  3. Lift system (100) according to either of Claims 1 and 2, characterized in that the flat drive (6) is a brushless motor.
  4. Lift system (100) according to one of Claims 1 to 3, characterized in that the flat drive (6) is an internal-rotor motor or an external-rotor motor.
  5. Lift system (100) according to one of the preceding claims, characterized in that the lift system (100) has an asymmetrical construction which is distinguished by the fact that the guide structure (10) is situated on one side of the lift car (5) and that the counterweight (18) with the flat drive (6) is situated on that side of the lift car (5), on which the guide structure (10) is arranged.
  6. Lift system (100) according to Claim 5, characterized in that the lift car (5) is equipped with a single-side door system (50), door elements (21, 22) of the door system (50) being displaced during opening towards that side of the lift car (5), on which the guide structure (10) is arranged.
  7. Lift system (100) according to one of the preceding Claims 1 to 4, characterized in that the lift system (100) has a substantially symmetrical construction which is distinguished by the fact that two guide structures (10) and two counterweights (18) are arranged, a first guide structure (10) with a first counterweight (18) being arranged on a first side of the lift car (5) and a second guide structure (10) with a second counterweight (18) being arranged on a second, opposite side of the lift car (5).
  8. Lift system (100) according to one of the preceding claims, characterized in that at least one counter-roller (24) is provided on the counterweight (18), which counter-roller (24) rolls on the guide structure (10) and ensures a reliable interaction of the flat drive (6) with the guide structure (10).
  9. Lift system (100) according to one of the preceding claims, characterized in that preferably at least two suspension means (19) are fastened eccentrically in the upper region of the counterweight (18).
  10. Lift system (100) according to one of the preceding claims, characterized in that the weight of the counterweight (18) is selected in such a way that, together with the flat drive (6), it equalizes approximately the weight of the lift car (5), the flat drive (6) always driving only in a defined uniform direction as a result of the said equalization.
  11. Lift system (100) according to Claim 1, characterized in that the counterweight (18) is suspended eccentrically, in order to ensure more reliable engagement of the crown gear (7) into the complementary toothing system (25).
  12. Lift system (100) according to one of the preceding claims, characterized in that at least two suspension means (19) are arranged in a connecting manner between the lift car (5) and the counterweight (18) or the counterweights.
EP09780644.2A 2008-07-23 2009-07-15 Elevator assembly with self-driving counterbalance Not-in-force EP2303751B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09780644.2A EP2303751B1 (en) 2008-07-23 2009-07-15 Elevator assembly with self-driving counterbalance

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP08161001 2008-07-23
EP09780644.2A EP2303751B1 (en) 2008-07-23 2009-07-15 Elevator assembly with self-driving counterbalance
PCT/EP2009/059079 WO2010010024A1 (en) 2008-07-23 2009-07-15 Elevator system with automotive counterweight

Publications (2)

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

Family

ID=40097146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09780644.2A Not-in-force EP2303751B1 (en) 2008-07-23 2009-07-15 Elevator assembly with self-driving counterbalance

Country Status (3)

Country Link
EP (1) EP2303751B1 (en)
CN (1) CN102105381A (en)
WO (1) WO2010010024A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106061881B (en) * 2014-03-05 2018-05-11 因温特奥股份公司 The driving device with multiple baudrier of lift facility
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 (en) * 1997-09-19 1999-04-06 Ohbayashi Corp Lift for construction
EP1808399B1 (en) * 1998-02-26 2009-12-09 Otis Elevator Company Belt-climbing elevator having drive in counterweight
DE10014002A1 (en) * 2000-03-22 2001-10-04 Hillenkoetter & Ronsieck Vertical elevator, has drive mechanism integrated into counterweight attached to lift car traction device
DE10140390B4 (en) * 2001-08-23 2005-12-01 HIRO LIFT Hillenkötter + Ronsieck GmbH vertical lift
DE20320076U1 (en) * 2003-12-23 2004-03-04 Wittur Ag Driving gear for lift, comprises narrow drive motor with small drive disc mounted on common frame secured to lift shaft cover
DE20320004U1 (en) * 2003-12-22 2004-02-26 Wittur Ag Compact drive unit for lift with one sided support is mounted on the top of a support rail for the lift cage and a diametrically opposite support rail for the ballast weight

Also Published As

Publication number Publication date
WO2010010024A1 (en) 2010-01-28
CN102105381A (en) 2011-06-22
EP2303751A1 (en) 2011-04-06

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