EP1547961B2 - Drive unit for elevator - Google Patents

Drive unit for elevator Download PDF

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Publication number
EP1547961B2
EP1547961B2 EP03029778A EP03029778A EP1547961B2 EP 1547961 B2 EP1547961 B2 EP 1547961B2 EP 03029778 A EP03029778 A EP 03029778A EP 03029778 A EP03029778 A EP 03029778A EP 1547961 B2 EP1547961 B2 EP 1547961B2
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EP
European Patent Office
Prior art keywords
traction sheave
shaft
drive according
drive
brake
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.)
Expired - Lifetime
Application number
EP03029778A
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German (de)
French (fr)
Other versions
EP1547961A1 (en
EP1547961B8 (en
EP1547961B1 (en
Inventor
Hans-Ferdinand Frhr. Von Scholley
Jochen Müller
Uwe Resag
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ThyssenKrupp Aufzugswerke GmbH
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ThyssenKrupp Aufzugswerke GmbH
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Application filed by ThyssenKrupp Aufzugswerke GmbH filed Critical ThyssenKrupp Aufzugswerke GmbH
Priority to AT03029778T priority Critical patent/ATE319645T1/en
Priority to EP03029778A priority patent/EP1547961B2/en
Priority to ES03029778T priority patent/ES2246189T5/en
Priority to DE60303871T priority patent/DE60303871D1/en
Publication of EP1547961A1 publication Critical patent/EP1547961A1/en
Publication of EP1547961B1 publication Critical patent/EP1547961B1/en
Publication of EP1547961B8 publication Critical patent/EP1547961B8/en
Publication of EP1547961B2 publication Critical patent/EP1547961B2/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
    • B66B11/0476—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with friction gear, e.g. belt linking motor to sheave

Definitions

  • the present invention relates to a drive for elevators whose car is connected via suspension means with a counterweight, in particular for cable elevators, according to the preamble of patent claim 1.
  • the length of the shaft is defined here merely by the sum of the hoisting height, the height of the car and the required crossings and buffer strokes.
  • assemblies of the elevator drive and / or the elevator control which are conventionally arranged above or below the carriageway of the car, next to the carriageway of the car.
  • From the EP 0 719 724 B1 is a traction sheave elevator with an elevator car that moves along elevator guide rails, a counterweight that moves along counterweight guide rails, a set of elevator ropes on which the elevator car and counterweight are suspended in the hoistway, and a prime mover unit connected to the elevator car Drive unit connected and acting on the elevator sheave drive pulley drives, known.
  • the drive machine unit is arranged in a machine room, which is arranged in the elevator shaft or in the elevator shaft and its shaft wall.
  • WO 01/27016 A1 From the WO 01/27016 A1 is a drive for an elevator with a roped car, which is movable in a vertically extending shaft and down, and with a traction sheave for the ropes of the car and a parallel to the traction sheave arranged drive motor known, the drive motor by means of drive belt with a pulley is connected, which is arranged coaxially with the traction sheave.
  • the drive is designed so that the drive motor is provided with a braking device acting on the motor shaft.
  • a disadvantage of this structure is considered that he builds large.
  • the arrangement of the brake device on the motor shaft leads to a very long construction, so that the drive must inevitably protrude in the upper or lower portion of the shaft in the projection range of the car.
  • the present invention seeks to provide a small-sized drive for machine roomless elevator systems, which can be arranged in the shaft at any height next to the carriageway of the car without increasing the shaft and without additional shaft wall recesses.
  • the drive according to the invention is characterized by a combination of features, all of which lead to a reduction of the required horizontal space, so that a positioning of the drive next to the carriageway of a car substantially in any vertical height is possible without the necessary shaft widths over conventional solutions to enlarge.
  • a positioning of the drive in a vertical height above a possible groundwater or high water level in a simple manner can be realized.
  • the inventive measure to combine the electric motor of the drive with a countershaft the required drive torque of the motor can be reduced in a suitable manner, whereby a significant reduction in the size of the motor, in particular the axial size and its deployment costs can be realized.
  • the further measure according to the invention of arranging the braking device so that it can act directly on the traction sheave means that no safety-relevant requirements are to be placed on the countershaft.
  • the axial extension or width of the additional gear is additionally minimized.
  • the further provided parallel arrangement of the axes of the traction sheave and the electric motor means that the traction sheave and braking device can be arranged above or next to the electric motor, whereby the resulting horizontal extent (in the axial direction of the motor shaft or traction sheave axis) of these components is further minimized.
  • Another way to minimize the horizontal extent of the drive is located in the further provided inventive measure to store the counter gear of the electric motor and the traction sheave with counter gear flying.
  • flying storage here, according to the usual terminology, an axial one-sided storage of the counter gear of the electric motor or the traction sheave with counter gear understood.
  • the invention provides to store the traction sheave together with the feed wheel and the brake disc flying on the traction sheave axis.
  • its horizontal projection surface substantially corresponds to the cumulative projection of the traction sheave, brake device and pulley, wherein the axis of the traction sheave or the shaft of the electric motor perpendicular to the adjacent shaft wall, positioned on the components are, should be aligned.
  • the countershaft is designed as a belt pulley with a reduction ratio of 2: 1 to 5: 1.
  • the required drive torque of the electric motor is reduced according to this factor, whereby a minimization of the size of the motor and a reduction of the deployment costs is possible.
  • the required engine speed is still typically a factor of 2 to 3 below the speed of a conventional frequency-controlled transmission drive and the latter, in particular with regard to the arrangement in the shaft, significantly superior due to the lower noise emissions ,
  • the execution can also be done with a transmission ratio of 1: 1.
  • the formation of the drive according to the invention with a single countershaft transmission element, in particular belt, without security losses is possible, it is also, depending on the circumstances, advantageously possible, the countershaft, in particular the Riemenvorgelege, with a plurality of parallel transmission elements, especially belts, train.
  • the countershaft in particular the Riemenvorgelege
  • a plurality of parallel transmission elements especially belts, train.
  • the provision of multiple transmission elements creates redundancy effects, whereby the operational readiness of the drive according to the invention can be optimized.
  • the provided in the drive according to the invention braking device is designed as a jaw or disc brake, wherein the disc diameter is advantageously greater than the drive pulley diameter.
  • the braking device is also advantageously possible to carry out the braking device as a wholly or partly arranged in the interior of the traction sheave disk brake.
  • Such a multi-disc brake proves to be a particularly effective braking device in practice.
  • the electric motor is designed as a synchronous external rotor motor with permanent magnets arranged on the rotor, wherein the outer rotor is mounted on one side on a shaft passing through the motor, and on the other side of the shaft, the countershaft, in particular a pulley, is arranged flying.
  • the shaft thus extends through an axial opening formed in the stator.
  • corresponding bearing means are formed in this opening.
  • An external rotor motor provides, in principle, more favorable drive lever ratios than a corresponding internal rotor motor, since the effective drive lever arm lies radially outside the motor air gap.
  • the electric motor has a removable housing which completely encloses the rotor, the housing receiving on the opposite side of the pulley a built-in motor impulse taker.
  • a housing is advantageous for safety reasons, for example.
  • Such a housing also serves for protection Against pollution. With the housing sealing of the engine, for example, against water is possible in a simple manner. The housing can also serve as explosion protection.
  • the electric motor has a stator whose plates are formed with outwardly open grooves for receiving coils.
  • prefabricated, wound and pressed coils can be easily mounted on the stator from the outside.
  • This embodiment is sometimes referred to as a tooth winding technique or as Einzelbianbewicklung.
  • the electric motor is formed with a rotor which contains a magnetic return ring in the outer region, which is equipped on the inside with permanent magnets.
  • This return ring can also be formed with inwardly open grooves for receiving permanent magnets.
  • the electric motor is formed with a stator in which several or all coils of an electrical phase are made of a wire endlessly.
  • FIG. 1 is a preferred embodiment of a drive according to the invention for cable lifts total designated 10.
  • the drive has as essential components an electric motor 12, a traction sheave 14, a braking device with a brake disc 16 and brake calipers 24, 26 and a Riemenvorgelege 18, 20, 21.
  • a housing of the electric motor 12 is designated 12a, a frame for supporting the traction sheave with 70th
  • the Riemenvorgelege has a first, attached to the motor shaft 13 of the electric motor pulley 18, a second, attached to the traction sheave 14 pulley 20 and the pulleys 18, 20 with each other coupling belt 21.
  • the belt 21 is preferably designed as a (form-locking) toothed belt made of the highest-strength material.
  • a preferred tooth profile here is the STD profile.
  • plastics reinforced with aramide or Kevlar fibers or strands are preferred.
  • non-positively acting belts for example V-belts, can also be used.
  • FIG. 1 it can be seen that the electric motor 12 and the traction sheave 14 or the braking device 16, 24, 26 are arranged one above the other in such a way that the shaft 13 of the electric motor 12 and the axis 15 of the traction sheave 14 run parallel to one another.
  • the horizontal extension of the drive 10 that is, the extension in the direction of the shaft or axle 13 or 15, can be minimized.
  • the Riemenvorgelege represents a reduction gear
  • the drive torque of the motor 12 is expediently reduced by a factor of two to five.
  • the engine 12 is (in the in FIG. 1 not shown elevator shaft) below the traction sheave 14 and the braking device, and projects in its axial length not significantly beyond the cumulative width of the traction sheave and braking device addition. Furthermore, the brake disc 16 of the braking device is rotatably connected to the traction sheave 14, so that no safety risks arise even in case of failure of the Riemenvorgeleges.
  • the traction sheave 14 drives, as also in FIG. 1 can be seen, a number of elevator ropes 22 at.
  • FIG. 2 is a sectional view of the drive according to FIG. 1 represented in a plane defined by the shaft or axis 13 and 15.
  • the already referring to FIG. 1 components are also described in FIG. 2 represented and each provided with the same reference numerals.
  • the electric motor 12 has a stator 30, which is fixedly connected via a suspension 32 to the housing 12a.
  • the electric motor 12 designed as a synchronous motor (eg PPSM motor) also has a bell-shaped, outer-running rotor 34.
  • the rotor 34 is rotatably connected to the motor shaft 13.
  • the rotor 34 is rotatably supported within the stator by means of a bearing 38.
  • the shaft 13 is rotatably supported in the stator via a further motor bearing 40.
  • the stator 30 is provided with plates 41 which are formed with outwardly open grooves. In these grooves coils 42 are introduced.
  • the plates of the rotor 34 and the magnetic yoke ring are provided on the inside with permanent magnets.
  • the magnetic return ring may also be formed with inwardly open grooves, in which magnets 44 are introduced (see in particular also FIG. 3 ).
  • the shaft 13 On a first end, the shaft 13 is already with reference to FIG. 1 described pulley 18 rotatably connected.
  • a pulse generator 46 On the opposite side of the shaft 13, a pulse generator 46 is rotatably applied, which, for example, in the context of a motor control or to determine a Car position or speed can be used.
  • Rotor 34 and pulley 18 are not two-sided, but (axially) only one side provided with bearing means.
  • the housing 12 a in which the electric motor 12 is located, for. B. on a shaft wall, here designated 50, for example by means of a (not shown) fixed carrier, or on one or more guide rails or on a shaft framework.
  • a traction sheave 14 is arranged.
  • the traction sheave 14 is, for example by means of bolts 62, rotatably connected to the pulley 20 of the Riemenvorgeleges.
  • the bearing of the traction sheave or the pulley on the axis 15 by means of two bearings 64th
  • the pulley 20 is also cantilevered together with the traction sheave 14, since the axis 15 is held unilaterally in the support assembly 14a.
  • the brake disc 16 is also concentric with the axis 15 rotatably connected to the traction sheave 14. This attachment is accomplished for example by means of bolts 66.
  • the in the FIGS. 1 and 2 Braking device shown is a disc brake with two brake calipers 24 and 26.
  • the brake disc 16 can be acted upon by means of the brake calipers 24, 26 in a conventional manner.
  • the brake calipers 24, 26 have, for example, brake shoes 24a and 24b, which can be brought into operative connection with the brake disk 16 for triggering a braking operation.
  • the diameter of the brake disk 16 is greater than the diameter of the traction sheave 14.
  • the brake calipers 24, 26 may engage the brake disc 16 radially outward of the location at which the brake pad 16 has already been referenced FIG. 1 explained belt 21 acts on the pulley 20, and the elevator cables 22 act on the traction sheave 14.
  • the brake calliper 24 is arranged between the support cables (see in particular FIG. 1 ) and the brake calliper 26 opposite thereto on the side of the direction of the motor, so that there is no additional space required in the axial direction of the axis 15 or in the width of the drive.
  • Traction sheave 14 and braking device 24, 26, 16 are held by the support assembly 14a on a frame 70 which is fixedly connected to the frame 12a of the motor 12, for example by means of screws 73 (see FIG. 1 ).
  • a cover hood 74 is provided on the shaft side, which prevents undesired engagement in the belt drive and dampens or reduces the noise emission of the drive.
  • the distance between the axis 15 and the shaft 13 can be changed by adjustment with a set screw 72.
  • FIG. 3 shows a more detailed representation of the electric motor 12, in which case a representation of the pulley 40 is omitted.
  • FIG. 3 one recognizes particularly clearly the already with reference to FIG. 2 explained flying mounting of the motor shaft 13 by means of the bearings 38, 40.
  • FIG. 3 one recognizes the coils 42 of the stator 30 and the magnets 44 of the rotor 34th In FIG. 3 Further, one recognizes the designated motor gap between coil 42 and magnet 44th

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

The lift drive has an electric motor (12), a drive disk (14), a braking device and other components. The brake disk (16) of the braking device is fixed rotationally to the drive disk. The drive disk axis has its axis of rotation parallel to that of the electric motor shaft (15). These two components carry countergears (18, 20).

Description

Die vorliegende Erfindung betrifft einen Antrieb für Aufzüge, deren Fahrkorb über Tragmittel mit einem Gegengewicht verbunden ist, insbesondere für Seilaufzüge, nach dem Oberbegriff des Patentanspruchs 1.The present invention relates to a drive for elevators whose car is connected via suspension means with a counterweight, in particular for cable elevators, according to the preamble of patent claim 1.

Triebwerkraumlose Aufzüge finden bereits weite Verwendung. Es wird hierbei angestrebt, Ansätze zur Reduzierung von Schachtabmessungen umzusetzen. Im theoretisch günstigsten Falle ist hierbei die Länge des Schachtes definiert lediglich durch die Summe der Förderhöhe, der Höhe des Fahrkorbs und der erforderlichen Überfahrten und Pufferhübe. Hierzu ist es notwendig, Baugruppen des Aufzugsantriebs und/oder der Aufzugsteuerung, die herkömmlicherweise über oder unter der Fahrbahn des Fahrkorbs angeordnet sind, neben der Fahrbahn des Fahrkorbs zu positionieren.Powertrainless elevators are already in widespread use. It is hereby aimed to implement approaches to reduce manhole dimensions. In the most favorable theoretical case, the length of the shaft is defined here merely by the sum of the hoisting height, the height of the car and the required crossings and buffer strokes. For this purpose, it is necessary to position assemblies of the elevator drive and / or the elevator control, which are conventionally arranged above or below the carriageway of the car, next to the carriageway of the car.

Aus der EP 0 719 724 B1 ist ein Treibscheibenaufzug mit einer Aufzugkabine, die sich entlang von Aufzugführungsschienen bewegt, einem Gegengewicht, dass sich entlang von Gegengewichtsführungsschienen bewegt, einem Satz von Aufzugseilen, an denen die Aufzugkabine und das Gegengewicht in dem Aufzugschacht aufgehängt sind, und einer Antriebsmaschineneinheit, die eine mit der Antriebsmaschineneinheit verbundene und auf die Aufzugseile wirkende Treibscheibe antreibt, bekannt. Hierbei ist die Antriebsmaschineneinheit in einem Maschinenraum angeordnet, der in dem Aufzugschacht oder in dem Aufzugschacht und seiner Schachtwand angeordnet ist. Obwohl dort der Aufzugantrieb neben der Fahrbahn des Fahrkorbs positioniert ist, wird als nachteilig empfunden, dass die dort vorgesehenen Antriebseinheiten sehr viel Bauraum benötigen, so dass beispielsweise bei gleicher Fahrkorbgröße gegenüber herkömmlichen Aufzügen größere Schachtbreiten und/oder -tiefen erforderlich sind bzw. zusätzliche Schachtwandaussparungen notwendig sind. Insbesondere kann dies dazu führen, dass übliche Schachtquerschnittsmaße nach ISO 4190-1 nicht eingehalten werden können.From the EP 0 719 724 B1 is a traction sheave elevator with an elevator car that moves along elevator guide rails, a counterweight that moves along counterweight guide rails, a set of elevator ropes on which the elevator car and counterweight are suspended in the hoistway, and a prime mover unit connected to the elevator car Drive unit connected and acting on the elevator sheave drive pulley drives, known. Here, the drive machine unit is arranged in a machine room, which is arranged in the elevator shaft or in the elevator shaft and its shaft wall. Although there the elevator drive is positioned next to the carriageway of the car, it is considered disadvantageous that the drive units provided there require a lot of space, so that for example the same car size over conventional lifts larger shaft widths and / or depths are required or additional shaft wall recesses necessary are. In particular, this can lead to the usual shaft cross-sectional dimensions according to ISO 4190-1 can not be met.

Aus der WO 01/27016 A1 ist ein Antrieb für einen Aufzug mit einem an Seilen gehaltenen Fahrkorb, der in einem sich vertikal erstreckenden Schacht auf und ab verfahrbar ist, sowie mit einer Treibscheibe für die Seile des Fahrkorbs und einem zur Treibscheibe parallelachsig angeordneten Antriebsmotor bekannt, wobei der Antriebsmotor durch Treibriemen mit einer Riemenscheibe verbunden ist, die koaxial zur Treibscheibe angeordnet ist. Hierbei ist der Antrieb so ausgebildet, dass der Antriebsmotor mit einer auf die Motorwelle einwirkenden Bremsvorrichtung versehen ist. Als nachteilig bei diesem Aufbau wird angesehen, dass er groß baut. Insbesondere die Anordnung der Bremsvorrichtung an der Motorwelle führt zu einer sehr langen Konstruktion, so dass der Antrieb zwangsläufig im oberen oder unteren Bereich des Schachtes in den Projektionsbereich des Fahrkorbs ragen muss.From the WO 01/27016 A1 is a drive for an elevator with a roped car, which is movable in a vertically extending shaft and down, and with a traction sheave for the ropes of the car and a parallel to the traction sheave arranged drive motor known, the drive motor by means of drive belt with a pulley is connected, which is arranged coaxially with the traction sheave. In this case, the drive is designed so that the drive motor is provided with a braking device acting on the motor shaft. A disadvantage of this structure is considered that he builds large. In particular, the arrangement of the brake device on the motor shaft leads to a very long construction, so that the drive must inevitably protrude in the upper or lower portion of the shaft in the projection range of the car.

Es sind ebenfalls Lösungen bekannt, bei denen die Antriebseinheiten lediglich teilweise neben der Fahrbahn des Fahrkorbs angeordnet werden. Eine derartige Ausbildung erweist sich als mechanisch relativ aufwendig.Solutions are also known in which the drive units are only partially arranged next to the roadway of the car. Such a design proves to be relatively expensive mechanically.

Mit der vorliegenden Erfindung wird angestrebt, einen klein bauenden Antrieb für triebwerksraumlose Aufzugsanlagen bereit zu stellen, der im Schacht in beliebiger Höhe neben der Fahrbahn des Fahrkorbs angeordnet werden kann, ohne den Schacht zu vergrößern und ohne zusätzliche Schachtwandaussparungen.The present invention seeks to provide a small-sized drive for machine roomless elevator systems, which can be arranged in the shaft at any height next to the carriageway of the car without increasing the shaft and without additional shaft wall recesses.

Dieses Ziel wird erreicht mit einem Antrieb mit den Merkmalen des Patentanspruchs 1.This object is achieved with a drive having the features of patent claim 1.

Der erfindungsgemäße Antrieb zeichnet sich durch eine Kombination von Merkmalen aus, die sämtlich zu einer Verringerung des benötigten horizontalen Bauraums führen, so dass eine Positionierung des Antriebs neben der Fahrbahn eines Fahrkorbs im wesentlichen in beliebiger vertikaler Höhe möglich ist, ohne die notwendigen Schachtbreiten gegenüber herkömmlichen Lösungen zu vergrößern. Insbesondere ist es möglich, einen leistungsfähigen Antrieb unter Einhaltung üblicher Schachtbreiten nach ISO 4190-1 bei Positionierung des Antriebs auf beliebiger vertikaler Höhe entlang der Fahrbahn des Fahrkorbs vorzusehen. Insbesondere ist eine Positionierung des Antriebs in einer vertikalen Höhe oberhalb eines möglichen Grundwasser- oder Hochwasserpegels in einfacher Weise realisierbar.The drive according to the invention is characterized by a combination of features, all of which lead to a reduction of the required horizontal space, so that a positioning of the drive next to the carriageway of a car substantially in any vertical height is possible without the necessary shaft widths over conventional solutions to enlarge. In particular, it is possible to provide a powerful drive in compliance with usual shaft widths according to ISO 4190-1 when positioning the drive at any vertical height along the roadway of the car. In particular, a positioning of the drive in a vertical height above a possible groundwater or high water level in a simple manner can be realized.

Durch die erfindungsgemäße Maßnahme, den Elektromotor des Antriebs mit einem Vorgelege zu kombinieren, kann das erforderliche Antriebsmoment des Motors in geeigneter Weise reduziert werden, wodurch eine erhebliche Verringerung der Baugröße des Motors, insbesondere der axialen Baugröße und seiner Bereitstellungskosten realisierbar ist.The inventive measure to combine the electric motor of the drive with a countershaft, the required drive torque of the motor can be reduced in a suitable manner, whereby a significant reduction in the size of the motor, in particular the axial size and its deployment costs can be realized.

Die weitere erfindungsgemäße Maßnahme, die Bremseinrichtung so anzuordnen, dass sie unmittelbar an der Treibscheibe angreifen kann, führt dazu, dass an das Vorgelege keine sicherheitsrelevanten Anforderungen zu stellen sind. Ein einziges Übertragungselement für das Vorgelege, beispielsweise ein Riemen oder eine Kette, erweist sich somit in der Praxis als ausreichend. Hierdurch ist die axiale Erstreckung bzw. Breite des Vorgeleges zusätzlich minimierbar.The further measure according to the invention of arranging the braking device so that it can act directly on the traction sheave means that no safety-relevant requirements are to be placed on the countershaft. A single transmission element for the countershaft, such as a belt or a chain, thus proves to be sufficient in practice. As a result, the axial extension or width of the additional gear is additionally minimized.

Die ferner vorgesehene parallele Anordnung der Achsen der Treibscheibe und des Elektromotors führt dazu, dass Treibscheibe und Bremseinrichtung oberhalb oder neben dem Elektromotor angeordnet werden können, wodurch die resultierende horizontale Erstreckung (in axialer Richtung der Motorwelle bzw. Treibscheibenachse) dieser Bauteile weiter minimierbar ist.The further provided parallel arrangement of the axes of the traction sheave and the electric motor means that the traction sheave and braking device can be arranged above or next to the electric motor, whereby the resulting horizontal extent (in the axial direction of the motor shaft or traction sheave axis) of these components is further minimized.

Eine weitere Möglichkeit zur Minimierung der horizontalen Erstreckung des Antriebs liegt in der ferner vorgesehenen erfindungsgemäßen Maßnahme, das Vorgelegerad des Elektromotors und die Treibscheibe mit Vorgelegerad fliegend zu lagern. Unter fliegender Lagerung wird hierbei, entsprechend der üblichen Terminologie, eine axial einseitige Lagerung des Vorgelegerads des Elektromotors bzw. der Treibscheibe mit Vorgelegerad verstanden.Another way to minimize the horizontal extent of the drive is located in the further provided inventive measure to store the counter gear of the electric motor and the traction sheave with counter gear flying. Under flying storage here, according to the usual terminology, an axial one-sided storage of the counter gear of the electric motor or the traction sheave with counter gear understood.

Vorteilhafte Ausgestaltungen des erfindungsgemäßen Antriebs sind Gegenstand der Unteransprüche.Advantageous embodiments of the drive according to the invention are the subject of the dependent claims.

Zweckmäßigerweise ist erfindungsgemäß vorgesehen, die Treibscheibe zusammen mit dem Vorlegerad und der Bremsscheibe fliegend auf der Treibscheibenachse zu lagern.Conveniently, the invention provides to store the traction sheave together with the feed wheel and the brake disc flying on the traction sheave axis.

In besonders vorteilhafter Weise entspricht die (axiale) Länge des Elektromotors im wesentlichen der kumulierten Breite von Treibscheibe und Bremseinrichtung. Durch die parallele Anordnung der Achse der Treibscheibe und der Welle des Elektromotors ist so der horizontale Bauraum des Antriebs minimierbar.In a particularly advantageous manner corresponds to the (axial) length of the electric motor substantially the cumulative width of traction sheave and braking device. Due to the parallel arrangement of the axis of the traction sheave and the shaft of the electric motor so the horizontal space of the drive can be minimized.

Hieraus ergibt sich für die horizontalen Abmessungen des kompletten Antriebs insbesondere, dass dessen horizontale Projektionsfläche im wesentlichen der kumulierten Projektionsfläche von Treibscheibe, Bremseinrichtung und Riemenrad entspricht, wobei die Achse der Treibscheibe bzw. die Welle des Elektromotors senkrecht zur nebenliegenden Schachtwand, an der die Komponenten positioniert sind, ausgerichtet sein sollte.It follows for the horizontal dimensions of the complete drive in particular that its horizontal projection surface substantially corresponds to the cumulative projection of the traction sheave, brake device and pulley, wherein the axis of the traction sheave or the shaft of the electric motor perpendicular to the adjacent shaft wall, positioned on the components are, should be aligned.

Zweckmäßigerweise ist das Vorgelege als Riemenvorgelege mit einem Untersetzungsverhältnis von 2:1 bis 5:1 ausgeführt. Durch diese Maßnahme wird das erforderliche Antriebsmoment des Elektromotors entsprechend diesem Faktor reduziert, wodurch eine Minimierung der Baugröße des Motors und eine Senkung der Bereitstellungskosten möglich ist. Bei einer Reduzierung des Antriebsmomentes um einen in dem angegebenen Bereich liegenden Faktor liegt die erforderliche Motordrehzahl typischerweise immer noch um einen Faktor 2 bis 3 unter der Drehzahl eines herkömmlichen frequenzgeregelten Getriebeantriebs und ist letzterem, insbesondere hinsichtlich der Anordnung im Schacht, aufgrund der geringeren Geräuschemissionen deutlich überlegen. Insbesondere werden erfindungsgemäß Motordrehzahlen von etwa 300-700 U/min, insbesondere etwa 500 U/min vorgesehen, während bisherige Motordrehzahlen in der Größenordnung von 1200 U/min liegen.Conveniently, the countershaft is designed as a belt pulley with a reduction ratio of 2: 1 to 5: 1. By this measure, the required drive torque of the electric motor is reduced according to this factor, whereby a minimization of the size of the motor and a reduction of the deployment costs is possible. With a reduction in the drive torque by a factor in the specified range, the required engine speed is still typically a factor of 2 to 3 below the speed of a conventional frequency-controlled transmission drive and the latter, in particular with regard to the arrangement in the shaft, significantly superior due to the lower noise emissions , In particular, according to the invention engine speeds of about 300-700 U / min, in particular about 500 U / min provided, while previous engine speeds are in the order of 1200 U / min.

Die Ausfertigung kann auch mit einem Übersetzungsverhältnis von 1:1 erfolgen.The execution can also be done with a transmission ratio of 1: 1.

Obwohl ausgeführt wurde, dass die Ausbildung des erfindungsgemäßen Antriebs mit einem einzigen Vorgelege-Übertragungselement, insbesondere Riemen, ohne Sicherheitseinbußen möglich ist, ist es ebenfalls, je nach Gegebenheiten, in vorteilhafter Weise möglich, das Vorgelege, insbesondere das Riemenvorgelege, mit mehreren parallelen Übertragungselementen, insbesondere Riemen, auszubilden. Mit der Bereitstellung mehrerer paralleler Riemen ist es beispielsweise möglich, ungünstige Resonanzen bzw. Eigenfrequenzen des erfindungsgemäßen Antriebs zu vermeiden bzw. zu minimieren. Ferner schafft die Bereitstellung mehrerer Übertragungselemente Redundanzeffekte, wodurch die Betriebsbereitschaft des erfindungsgemäßen Antriebs optimiert werden kann.Although it has been stated that the formation of the drive according to the invention with a single countershaft transmission element, in particular belt, without security losses is possible, it is also, depending on the circumstances, advantageously possible, the countershaft, in particular the Riemenvorgelege, with a plurality of parallel transmission elements, especially belts, train. By providing a plurality of parallel belts, it is possible, for example, to avoid or minimize unfavorable resonances or natural frequencies of the drive according to the invention. Furthermore, the provision of multiple transmission elements creates redundancy effects, whereby the operational readiness of the drive according to the invention can be optimized.

Zweckmäßigerweise ist die bei dem erfindungsgemäßen Antrieb vorgesehene Bremseinrichtung als Backen- oder Scheibenbremse ausgebildet, wobei der Bremsscheibendurchmesser vorteilhafterweise größer als der Treibscheibendurchmesser ist. Durch diese Maßnahme kann gewährleistet werden, dass die Bremszangen oder Bremsbacken, die an der Bremsscheibe angreifen, nur relativ geringe Kräfte auf die Bremsscheibe bereitstellen müssen. Hierdurch kann die Wärmeentwicklung und somit die Lebensdauer des Bremseinrichtung optimiert werden und die Baugröße und die Kosten der Bremseinrichtung selbst können verringert werden.Conveniently, the provided in the drive according to the invention braking device is designed as a jaw or disc brake, wherein the disc diameter is advantageously greater than the drive pulley diameter. By this measure, it can be ensured that the brake calipers or brake shoes, which engage the brake disk, only have to provide relatively small forces on the brake disk. As a result, the heat development and thus the life of the braking device can be optimized and the size and cost of the braking device itself can be reduced.

Es ist ebenfalls vorteilhaft möglich, die Bremseinrichtung als ganz oder teilweise im Inneren der Treibscheibe angeordnete Lamellenbremse auszuführen. Eine derartige Lamellenbremse erweist sich in der Praxis als besonders effektive Bremseinrichtung.It is also advantageously possible to carry out the braking device as a wholly or partly arranged in the interior of the traction sheave disk brake. Such a multi-disc brake proves to be a particularly effective braking device in practice.

Gemäß einer weiteren bevorzugten Ausführungsform des erfindungsgemäßen Antriebs ist der Elektromotor als Synchron-Aussenläufermotor mit am Rotor angeordneten Permanentmagneten ausgebildet, wobei der außenlaufende Rotor auf einer Seite auf einer durch den Motor verlaufenden Welle befestigt ist, und auf der anderen Seite der Welle das Vorgelege, insbesondere ein Riemenrad, fliegend angeordnet ist. Die Welle erstreckt sich somit durch eine im Stator ausgebildete axiale Öffnung. In dieser Öffnung sind zweckmäßigerweise entsprechende Lagermittel ausgebildet. Ein Außenläufermotor stellt prinzipiell günstigere Antriebshebelverhältnisse als ein entsprechender Innenläufermotor zur Verfügung, da der wirksame Antriebshebelarm radial außerhalb des Motor-Luftspalts liegt. Die erfindungsgemäße Ausbildung eines derartigen Außenläufermotors mit fliegender Lagerung und einer mit dem außenlaufenden Rotor verbundenen Welle, welche sich durch den Motor hindurch erstreckt, führt zu einer sehr flachen, hochkompakten Bauweise des Motors. Dadurch, dass der außenlaufende Rotor den erzeugten Kraftfluss durch die eigene Mitte herausführt, ist es in besonders günstiger Weise möglich, beispielsweise das Vorgelege, insbesondere Riemenrad, axial versetzt zum Rotor auf der Motorwelle zu befestigen. Die fliegende Befestigung des Motors bzw. des Vorgeleges führt ferner dazu, dass eine Lagerung des Motors bzw. des Vorgeleges sehr nah an einem Träger bzw. Rahmen möglich ist, wodurch unerwünschte Momente, welche zu Biegungen an der Motorwelle führen würden, vermieden werden können. Es wird auch die über das Vorgelege mit der Motorwelle verbundene Treibscheibenachse entsprechend geringer belastet. Es sei in diesem Zusammenhang betont, dass auch ein Innenläufer-Motor im Rahmen des erfindungsgemäßen Antriebs vorgesehen sein kann.According to a further preferred embodiment of the drive according to the invention, the electric motor is designed as a synchronous external rotor motor with permanent magnets arranged on the rotor, wherein the outer rotor is mounted on one side on a shaft passing through the motor, and on the other side of the shaft, the countershaft, in particular a pulley, is arranged flying. The shaft thus extends through an axial opening formed in the stator. Appropriately, corresponding bearing means are formed in this opening. An external rotor motor provides, in principle, more favorable drive lever ratios than a corresponding internal rotor motor, since the effective drive lever arm lies radially outside the motor air gap. The inventive construction of such an external rotor motor with flying bearing and a shaft connected to the outer rotor, which extends through the motor, leads to a very flat, highly compact design of the engine. The fact that the outboard rotor leads out the generated power flow through the center, it is possible in a particularly advantageous manner, for example, the countershaft, in particular pulley, axially offset from the rotor to fix on the motor shaft. The flying attachment of the engine or the Vorgeleges also leads to a storage of the engine or the counter gear is very close to a support or frame possible, whereby unwanted moments, which would lead to bends on the motor shaft, can be avoided. It is also charged according to the connected via the countershaft with the motor shaft traction sheave axis. It should be emphasized in this context that an internal rotor motor can be provided in the context of the drive according to the invention.

Zweckmäßigerweise weist der Elektromotor ein abnehmbares Gehäuse auf, das den Rotor vollständig einschließt, wobei das Gehäuse auf der dem Riemenrad gegenüberliegenden Seite einen im Motor integrierten Impulsnehmer aufnimmt. Ein derartiges Gehäuse ist beispielsweise unter Sicherheitsaspekten vorteilhaft. Ein derartiges Gehäuse dient ferner zum Schutz gegen Verschmutzung. Mit dem Gehäuse ist in einfacher Weise eine Abdichtung des Motors beispielsweise gegen Wasser möglich. Das Gehäuse kann auch als Explosionsschutz dienen.Conveniently, the electric motor has a removable housing which completely encloses the rotor, the housing receiving on the opposite side of the pulley a built-in motor impulse taker. Such a housing is advantageous for safety reasons, for example. Such a housing also serves for protection Against pollution. With the housing sealing of the engine, for example, against water is possible in a simple manner. The housing can also serve as explosion protection.

In besonders vorteilhafter Ausgestaltung weist der Elektromotor einen Stator auf, dessen Bleche mit nach außen offenen Nuten zur Aufnahme von Spulen ausgebildet sind. Mit dieser Ausbildung sind vorgefertigte, gewickelte und gepresste Spulen in einfacher Weise von außen auf den Stator montierbar. Diese Ausgestaltung wird bisweilen auch als Zahnwickeltechnik bzw. als Einzelzahnbewicklung bezeichnet.In a particularly advantageous embodiment, the electric motor has a stator whose plates are formed with outwardly open grooves for receiving coils. With this design, prefabricated, wound and pressed coils can be easily mounted on the stator from the outside. This embodiment is sometimes referred to as a tooth winding technique or as Einzelzahnbewicklung.

Es ist ebenfalls vorteilhaft, dass der Elektromotor mit einem Rotor ausgebildet ist, der im Außenbereich einen magnetischen Rückschlussring enthält, der auf der Innenseite mit Permanentmagneten bestückt ist. Dieser Rückschlussring kann auch mit nach innen offenen Nuten zur Aufnahme von Permanentmagneten ausgebildet sein. Mit dieser Maßnahme können insbesondere kostengünstig verfügbare, rechteckige Magnete mit einer Verklebung eindeutig und zuverlässig in ihrer Lage gehalten werden. Durch diese Maßnahme sind ferner Wirbelstromverluste im Rotor minimierbar.It is also advantageous that the electric motor is formed with a rotor which contains a magnetic return ring in the outer region, which is equipped on the inside with permanent magnets. This return ring can also be formed with inwardly open grooves for receiving permanent magnets. With this measure, in particular inexpensive, rectangular magnets can be held with a bond clearly and reliably in their position. By this measure, further eddy current losses in the rotor can be minimized.

Zweckmäßigerweise ist der Elektromotor mit einem Stator ausgebildet, bei dem mehrere oder sämtliche Spulen einer elektrischen Phase aus einem Draht endlos gefertigt sind.Conveniently, the electric motor is formed with a stator in which several or all coils of an electrical phase are made of a wire endlessly.

Die Erfindung wird nun anhand der beigefügten Zeichnung weiter erläutert. In dieser zeigt:

Figur 1
eine perspektivische Darstellung einer bevorzugten Ausführungsform des erfindungsgemäßen Antriebs,
Figur 2
eine seitliche Schnittansicht des Antriebs gemäß Figur 1, und
Figur 3
eine vergrößerte seitliche Schnittansicht eines im Rahmen des Antriebs gemäß den Figuren 1 und 2 verwendeten Elektromotors.
The invention will now be explained with reference to the accompanying drawings. In this shows:
FIG. 1
a perspective view of a preferred embodiment of the drive according to the invention,
FIG. 2
a side sectional view of the drive according to FIG. 1 , and
FIG. 3
an enlarged sectional side view of one in the context of the drive according to the FIGS. 1 and 2 used electric motor.

In Figur 1 ist eine bevorzugte Ausführungsform eines erfindungsgemäßen Antriebs für Seilaufzüge insgesamt mit 10 bezeichnet.In FIG. 1 is a preferred embodiment of a drive according to the invention for cable lifts total designated 10.

Der Antrieb weist als wesentliche Komponenten einen Elektromotor 12, eine Treibscheibe 14, eine Bremseinrichtung mit einer Bremsscheibe 16 und Bremszangen 24, 26 sowie ein Riemenvorgelege 18, 20, 21 auf. Ein Gehäuse des Elektromotors 12 ist mit 12a bezeichnet, ein Rahmen zum Tragen der Treibscheibe mit 70.The drive has as essential components an electric motor 12, a traction sheave 14, a braking device with a brake disc 16 and brake calipers 24, 26 and a Riemenvorgelege 18, 20, 21. A housing of the electric motor 12 is designated 12a, a frame for supporting the traction sheave with 70th

Das Riemenvorgelege weist eine erste, an der Motorwelle 13 des Elektromotors befestigte Riemenscheibe 18, eine zweite, an der Treibscheibe 14 befestigte Riemenscheibe 20 und einen die Riemenscheiben 18, 20 miteinander koppelnden Riemen 21 auf.The Riemenvorgelege has a first, attached to the motor shaft 13 of the electric motor pulley 18, a second, attached to the traction sheave 14 pulley 20 and the pulleys 18, 20 with each other coupling belt 21.

Der Riemen 21 ist bevorzugt als (formschlüssig wirkender) Zahnriemen aus höchstfestem Material ausgebildet. Ein bevorzugtes Zahnprofil ist hierbei das STD-Profil. Als Material sind beispielsweise mit Aramid- bzw. mit Kevlarfasern oder -strängen verstärkte Kunststoffe bevorzugt. Es sind ferner auch kraftschlüssig wirkende Riemen, beispielsweise Keilriemen, verwendbar.The belt 21 is preferably designed as a (form-locking) toothed belt made of the highest-strength material. A preferred tooth profile here is the STD profile. As the material, plastics reinforced with aramide or Kevlar fibers or strands are preferred. Furthermore, non-positively acting belts, for example V-belts, can also be used.

In Figur 1 erkennt man, dass der Elektromotor 12 und die Treibscheibe 14 bzw. die Bremseinrichtung 16, 24, 26 derart übereinander angeordnet sind, dass die Welle 13 des Elektromotors 12 und die Achse 15 der Treibscheibe 14 parallel zueinander verlaufen. Mit dieser Maßnahme ist die horizontale Erstreckung des Antriebs 10, d. h. die Erstreckung in Richtung der Welle oder Achse 13 bzw. 15, minimierbar.In FIG. 1 it can be seen that the electric motor 12 and the traction sheave 14 or the braking device 16, 24, 26 are arranged one above the other in such a way that the shaft 13 of the electric motor 12 and the axis 15 of the traction sheave 14 run parallel to one another. With this measure, the horizontal extension of the drive 10, that is, the extension in the direction of the shaft or axle 13 or 15, can be minimized.

Wie in Figur 1 ebenfalls zu erkennen ist, stellt das Riemenvorgelege ein Untersetzungsgetriebe dar, wobei das Antriebsmoment des Motors 12 zweckmäßigerweise um einen Faktor zwei bis fünf reduziert wird.As in FIG. 1 can also be seen, the Riemenvorgelege represents a reduction gear, the drive torque of the motor 12 is expediently reduced by a factor of two to five.

Der Motor 12 ist (im in Figur 1 nicht dargestellten Aufzugschacht) unterhalb der Treibscheibe 14 und der Bremseinrichtung angeordnet, und ragt in seiner axialen Länge nicht wesentlich über die kumulierte Breite von Treibscheibe und Bremseinrichtung hinaus. Ferner ist die Bremsscheibe 16 der Bremseinrichtung drehfest mit der Treibscheibe 14 verbunden, so dass auch bei Ausfall des Riemenvorgeleges keine Sicherheitsrisiken entstehen.The engine 12 is (in the in FIG. 1 not shown elevator shaft) below the traction sheave 14 and the braking device, and projects in its axial length not significantly beyond the cumulative width of the traction sheave and braking device addition. Furthermore, the brake disc 16 of the braking device is rotatably connected to the traction sheave 14, so that no safety risks arise even in case of failure of the Riemenvorgeleges.

Die Treibscheibe 14 treibt, wie ebenfalls in Figur 1 zu erkennen ist, eine Anzahl von Aufzugseilen 22 an.The traction sheave 14 drives, as also in FIG. 1 can be seen, a number of elevator ropes 22 at.

In Figur 2 ist eine Schnittansicht des Antriebs gemäß Figur 1 in einer durch die Welle bzw. Achse 13 und 15 definierten Ebene dargestellt. Die bereits unter Bezugnahme auf Figur 1 beschriebenen Komponenten sind auch in Figur 2 dargestellt und jeweils mit dem gleichen Bezugszeichen versehen.In FIG. 2 is a sectional view of the drive according to FIG. 1 represented in a plane defined by the shaft or axis 13 and 15. The already referring to FIG. 1 components are also described in FIG. 2 represented and each provided with the same reference numerals.

Der Elektromotor 12 weist einen Stator 30 auf, der über eine Aufhängung 32 mit dem Gehäuse 12a fest verbunden ist. Der als Synchron-Motor (z. B. PPSM-Motor) ausgebildete Elektromotor 12 weist ferner einen glockenförmig ausgebildeten, außenlaufenden Rotor 34 auf. Der Rotor 34 ist drehfest mit der Motorwelle 13 verbunden. Der Rotor 34 ist mittels eines Lagers 38 drehbar innerhalb des Stators gelagert. Die Welle 13 ist über ein weiteres Motorlager 40 drehbar im Stator gelagert.The electric motor 12 has a stator 30, which is fixedly connected via a suspension 32 to the housing 12a. The electric motor 12 designed as a synchronous motor (eg PPSM motor) also has a bell-shaped, outer-running rotor 34. The rotor 34 is rotatably connected to the motor shaft 13. The rotor 34 is rotatably supported within the stator by means of a bearing 38. The shaft 13 is rotatably supported in the stator via a further motor bearing 40.

Der Stator 30 ist mit Blechen 41 ausgestattet, welche mit nach außen offenen Nuten ausgebildet sind. In diese Nuten sind Spulen 42 eingebracht. Die Bleche des Rotors 34 bzw. der magnetische Rückschlussring sind auf der Innenseite mit Permanentmagneten versehen. Der magnetische Rückschlussring kann auch mit nach innen offenen Nuten ausgebildet sein, in welche Magnete 44 eingebracht sind (siehe insbesondere auch Figur 3).The stator 30 is provided with plates 41 which are formed with outwardly open grooves. In these grooves coils 42 are introduced. The plates of the rotor 34 and the magnetic yoke ring are provided on the inside with permanent magnets. The magnetic return ring may also be formed with inwardly open grooves, in which magnets 44 are introduced (see in particular also FIG. 3 ).

Auf einem ersten Ende ist die Welle 13 mit dem bereits unter Bezugnahme auf Figur 1 beschriebenen Riemenrad 18 drehfest verbunden. Auf der gegenüberliegenden Seite ist auf die Welle 13 ein Impulsgeber 46 drehfest aufgebracht, welcher beispielsweise im Rahmen einer Motorsteuerung oder zur Ermittlung einer Fahrkorbposition oder -geschwindigkeit verwendet werden kann.On a first end, the shaft 13 is already with reference to FIG. 1 described pulley 18 rotatably connected. On the opposite side of the shaft 13, a pulse generator 46 is rotatably applied, which, for example, in the context of a motor control or to determine a Car position or speed can be used.

Insgesamt ist die Lagerung des Rotors und des Riemenrades 18 fliegend ausgebildet, d. h. Rotor 34 und Riemenrad 18 sind nicht zweiseitig, sondern (axial) lediglich einseitig mit Lagermitteln versehen.Overall, the bearing of the rotor and the pulley 18 is designed to fly, d. H. Rotor 34 and pulley 18 are not two-sided, but (axially) only one side provided with bearing means.

Das Gehäuse 12a, in dem sich der Elektromotor 12 befindet, ist z. B. an einer Schachtwand, hier mit 50 bezeichnet, beispielsweise mittels eines (nicht dargestellten) Trägers befestigt, oder auch an einer oder mehreren Führungsschienen oder an einem Schachtgerüst.The housing 12 a, in which the electric motor 12 is located, for. B. on a shaft wall, here designated 50, for example by means of a (not shown) fixed carrier, or on one or more guide rails or on a shaft framework.

Oberhalb des Elektromotors 12 ist, wie bereits unter Bezugnahme auf Figur 1 erläutert wurde, eine Treibscheibe 14 angeordnet. Die Treibscheibe 14 ist, beispielsweise mittels Bolzen 62, drehfest mit der Riemenscheibe 20 des Riemenvorgeleges verbunden. Die Lagerung der Treibscheibe bzw. der Riemenscheibe an der Achse 15 erfolgt mittels zweier Lager 64.Above the electric motor 12 is, as already with reference to FIG. 1 has been explained, a traction sheave 14 is arranged. The traction sheave 14 is, for example by means of bolts 62, rotatably connected to the pulley 20 of the Riemenvorgeleges. The bearing of the traction sheave or the pulley on the axis 15 by means of two bearings 64th

Wie bereits unter Bezugnahme auf Figur 1 beschrieben, ist auch die Riemenscheibe 20 zusammen mit der Treibscheibe 14 fliegend gelagert, da die Achse 15 einseitig in der Trägeranordnung 14a gehalten ist.As already with reference to FIG. 1 described, the pulley 20 is also cantilevered together with the traction sheave 14, since the axis 15 is held unilaterally in the support assembly 14a.

Auch in Figur 2 erkennt man die bereits unter Bezugnahme auf Figur 1 erwähnten Aufzugseile 22, welche durch die Treibscheibe 14 angetrieben werden.Also in FIG. 2 one recognizes those already with reference to FIG. 1 mentioned elevator cables 22 which are driven by the traction sheave 14.

Die Bremsscheibe 16 ist ebenfalls konzentrisch zur Achse 15 drehfest mit der Treibscheibe 14 verbunden. Diese Befestigung wird beispielsweise mittels Bolzen 66 bewerkstelligt.The brake disc 16 is also concentric with the axis 15 rotatably connected to the traction sheave 14. This attachment is accomplished for example by means of bolts 66.

Die in den Figuren 1 und 2 gezeigte Bremseinrichtung ist eine Scheibenbremse mit zwei Bremszangen 24 und 26. Die Bremsscheibe 16 ist mittels der Bremszangen 24, 26 in an sich bekannter Weise beaufschlagbar. Die Bremszangen 24, 26 weisen beispielsweise Bremsbacken 24a und 24b auf, welche zur Auslösung eines Bremsvorgangs mit der Bremsscheibe 16 in Wirkverbindung bringbar sind.The in the FIGS. 1 and 2 Braking device shown is a disc brake with two brake calipers 24 and 26. The brake disc 16 can be acted upon by means of the brake calipers 24, 26 in a conventional manner. The brake calipers 24, 26 have, for example, brake shoes 24a and 24b, which can be brought into operative connection with the brake disk 16 for triggering a braking operation.

Anstelle der Ausbildung der Bremseinrichtung als Scheibenbremse kann diese auch z. B. als Backenbremse ausgebildet sein. Als besonders vorteilhaft erweist sich hierbei, dass der Durchmesser der Bremsscheibe 16 größer als der Durchmesser der Treibscheibe 14 ist. Somit können die Bremszangen 24, 26 an der Bremsscheibe 16 radial außerhalb des Ortes angreifen, an dem der bereits unter Bezugnahme auf Figur 1 erläuterte Riemen 21 an der Riemenscheibe 20 angreift, bzw. die Aufzugseile 22 die Treibscheibe 14 beaufschlagen. Vorteilhaft ist, dass die Bremszange 24 zwischen den Tragseilen angeordnet ist (siehe insbesondere Figur 1) und die Bremszange 26 entgegengesetzt dazu auf der Seite Richtung Motor, so dass weder in Axialrichtung der Achse 15 noch in der Breite des Antriebs ein zusätzlicher Raumbedarf besteht.Instead of the training of the braking device as a disc brake, this can also z. B. be designed as a jaw brake. In this case, it proves to be particularly advantageous that the diameter of the brake disk 16 is greater than the diameter of the traction sheave 14. Thus, the brake calipers 24, 26 may engage the brake disc 16 radially outward of the location at which the brake pad 16 has already been referenced FIG. 1 explained belt 21 acts on the pulley 20, and the elevator cables 22 act on the traction sheave 14. It is advantageous that the brake calliper 24 is arranged between the support cables (see in particular FIG. 1 ) and the brake calliper 26 opposite thereto on the side of the direction of the motor, so that there is no additional space required in the axial direction of the axis 15 or in the width of the drive.

Treibscheibe 14 und Bremseinrichtung 24, 26, 16 sind über die Trägeranordnung 14a an einem Rahmen 70 gehalten, der fest mit dem Rahmen 12a des Motors 12 beispielsweise mittels Schrauben 73 verbunden ist (siehe Figur 1).Traction sheave 14 and braking device 24, 26, 16 are held by the support assembly 14a on a frame 70 which is fixedly connected to the frame 12a of the motor 12, for example by means of screws 73 (see FIG. 1 ).

Schachtseitig ist eine Abdeckhaube 74 vorgesehen, die einen ungewollten Eingriff in den Riementrieb verhindert und die Geräuschemission des Antriebs dämpft bzw. reduziert.A cover hood 74 is provided on the shaft side, which prevents undesired engagement in the belt drive and dampens or reduces the noise emission of the drive.

Zusätzlich kann der Abstand zwischen der Achse 15 und der Welle 13 durch Einstellung mit einer Stellschraube 72 verändert werden.In addition, the distance between the axis 15 and the shaft 13 can be changed by adjustment with a set screw 72.

Figur 3 zeigt eine detailliertere Darstellung des Elektromotors 12, wobei hier auf eine Darstellung der Riemenscheibe 40 verzichtet ist. In Figur 3 erkennt man besonders deutlich die bereits unter Bezugnahme auf Figur 2 erläuterte fliegende Lagerung der Motorwelle 13 mittels der Lager 38, 40. Ferner erkennt man die Spulen 42 des Stators 30 sowie die Magnete 44 des Rotors 34. In Figur 3 erkennt man ferner den mit 37 bezeichneten Motorspalt zwischen Spulen 42 und Magneten 44. FIG. 3 shows a more detailed representation of the electric motor 12, in which case a representation of the pulley 40 is omitted. In FIG. 3 one recognizes particularly clearly the already with reference to FIG. 2 explained flying mounting of the motor shaft 13 by means of the bearings 38, 40. Furthermore, one recognizes the coils 42 of the stator 30 and the magnets 44 of the rotor 34th In FIG. 3 Further, one recognizes the designated motor gap between coil 42 and magnet 44th

Claims (14)

  1. Drive for elevators, the elevator car of which is connected with a counterweight via supporting means, especially for traction elevators, with an electromotor (12), a traction sheave (14), a braking device (16, 24, 26) and a transmission with a first transmission wheel (18) which is connected to a shaft (13) of the electromotor (12) so that it can not rotate with respect to the shaft, a further transmission wheel (20) connected to the traction sheave (14) so that it can not rotate with respect to the traction sheave, and a transmission element (21) for transmitting a rotation of the shaft (13) to the traction sheave (14),
    characterized in that
    a brake disc (16) of the braking devices is connected with the traction sheave (14) so that it can not rotate with respect to the traction sheave, wherein the axis (15) of the traction sheave (14) and the shaft (13) of the electromotor (12) are orientated parallel to one another, and the transmission wheels (18, 20) provided on the shaft (13) and the axis (15) are provided in an overhung manner.
  2. Drive according to claim 1, characterized in that the traction sheave (14) together with the transmission wheel (20) and the brake disc (16) is provided in an overhung manner on the axis (15).
  3. Drive according to claim 1 or claim 2, characterized in that the axial length of the electromotor (12) corresponds essentially to the width of the traction sheave (14) and the braking device (16, 24, 26).
  4. Drive according to any one of the claims 1 to 3, characterized in that the transmission is provided as a belt transmission with a gear reduction ratio of about 2:1 to 5:1.
  5. Drive according to claim 4, characterized in that the belt transmission is provided with a tooth belt (21) wherein the teeth of the tooth belt are especially provided as an STD-gearing, and/or the belt comprises traction enhancements made of textile or cords of aramid (kevlar).
  6. Drive according to claim 4 or 5, characterized in that the belt transmission comprises one or multiple parallel belts (21).
  7. Drive according to any one of the preceding claims, characterized in that the braking device is provided as a drum brake or disc brake, wherein the diameter of the brake disc (16) is larger than the diameter of the traction sheave (14).
  8. Drive according to claim 7, characterized in that the disc brake comprises brake calipers (24, 26) overlapping the brake disc (16), wherein at least one caliper is arranged between the supporting means (22) engaging the tractions sheave (14).
  9. Drive according to any one of the preceding claims, characterized in that the braking device is provided as multiple disc brake arranged wholly or in part within the traction sheave (14).
  10. Drive according to any one of the preceding claims, characterized in that the electromotor (12) is provided as a synchronous external rotor motor with permanent magnets provided on the rotor, wherein the externally rotating rotor is coupled with the shaft (13) so that it can not rotate with respect to the shaft, the shaft extending through the electromotor (12).
  11. Drive according to any one of the preceding claims, characterized in that the electromotor comprises a detachable housing (12a), which fully encloses the rotor (34), and on the side of the shaft (13) opposite to the transmission wheel (18) comprises a pulse generator or encoder integrated within the motor.
  12. Drive according to any one of the preceding claims, characterized in that the electromotor (12) comprises a stator (30), the laminations of which are provided with outwardly open grooves for receiving solenoids (42).
  13. Drive according to any one of the preceding claims, characterized in that the motor (12) comprises a rotor (34), the inside of which is provided with inwardly open grooves for receiving permanent magnets (44).
  14. Drive according to any one of the preceding claims, characterized in that the motor comprises a stator (30), in which a plurality or all of the solenoids of an electrical phase are endlessly manufactured from one wire.
EP03029778A 2003-12-23 2003-12-23 Drive unit for elevator Expired - Lifetime EP1547961B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT03029778T ATE319645T1 (en) 2003-12-23 2003-12-23 DRIVE FOR ELEVATORS
EP03029778A EP1547961B2 (en) 2003-12-23 2003-12-23 Drive unit for elevator
ES03029778T ES2246189T5 (en) 2003-12-23 2003-12-23 OPERATION FOR ELEVATORS.
DE60303871T DE60303871D1 (en) 2003-12-23 2003-12-23 Drive for lifts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03029778A EP1547961B2 (en) 2003-12-23 2003-12-23 Drive unit for elevator

Publications (4)

Publication Number Publication Date
EP1547961A1 EP1547961A1 (en) 2005-06-29
EP1547961B1 EP1547961B1 (en) 2006-03-08
EP1547961B8 EP1547961B8 (en) 2006-08-16
EP1547961B2 true EP1547961B2 (en) 2010-12-01

Family

ID=34530724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03029778A Expired - Lifetime EP1547961B2 (en) 2003-12-23 2003-12-23 Drive unit for elevator

Country Status (4)

Country Link
EP (1) EP1547961B2 (en)
AT (1) ATE319645T1 (en)
DE (1) DE60303871D1 (en)
ES (1) ES2246189T5 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2774886B1 (en) 2013-03-04 2015-11-18 Kone Corporation Traction sheave elevator
CN107108180B (en) * 2014-10-31 2019-07-09 奥的斯电梯公司 The monitoring structural health conditions of escalator driving system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI98296C (en) * 1994-12-28 1997-05-26 Kone Oy Traction elevator and traction elevator engine room
DE29806526U1 (en) * 1998-04-09 1998-07-23 Osma Aufzuege Albert Schenk Gm Elevator with a car held on ropes
JP4223613B2 (en) * 1999-01-13 2009-02-12 三菱電機株式会社 Self-propelled elevator equipment
WO2001027016A1 (en) * 1999-10-08 2001-04-19 Osma-Aufzüge Albert Schenk Gmbh & Co. Kg Elevator drive
DE20202975U1 (en) * 2002-02-26 2003-07-03 System Antriebstechnik Dresden Machine room free traction elevator with belt drive and brake, has bent brake rim around belt pulley acting as friction surface for caliper brake

Also Published As

Publication number Publication date
ES2246189T1 (en) 2006-02-16
EP1547961A1 (en) 2005-06-29
EP1547961B8 (en) 2006-08-16
DE60303871D1 (en) 2006-05-04
ATE319645T1 (en) 2006-03-15
EP1547961B1 (en) 2006-03-08
ES2246189T5 (en) 2011-03-28
ES2246189T3 (en) 2006-09-01

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