EP0949181B1 - Drive unit for an elevator with a car fixed to cables - Google Patents

Drive unit for an elevator with a car fixed to cables Download PDF

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Publication number
EP0949181B1
EP0949181B1 EP99105433A EP99105433A EP0949181B1 EP 0949181 B1 EP0949181 B1 EP 0949181B1 EP 99105433 A EP99105433 A EP 99105433A EP 99105433 A EP99105433 A EP 99105433A EP 0949181 B1 EP0949181 B1 EP 0949181B1
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EP
European Patent Office
Prior art keywords
drive
brake
drive according
drive motor
pulley
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
EP99105433A
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German (de)
French (fr)
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EP0949181A3 (en
EP0949181A2 (en
Inventor
Albert Schenk
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Osma-Aufzuege Albert Schenk & Co KG GmbH
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Osma-Aufzuege Albert Schenk & Co KG GmbH
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Publication of EP0949181A2 publication Critical patent/EP0949181A2/en
Publication of EP0949181A3 publication Critical patent/EP0949181A3/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
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
    • 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 invention relates to a drive for an elevator with a rope held car according to the preamble of claim 1.
  • the invention is based on the problem of an integrable in the elevator shaft To create drive for the elevator car, in which a conventional Drive motor can be used.
  • the drive according to the invention creates with the special arrangement of the Disks and the use of a V-ribbed flat belt drive a special flat assembly of a driving wheel, which is due to the spatial separation of Driving wheel and drive motor can be flexibly adapted to spatial conditions, so that even when using a conventional drive motor, for example an asynchronous motor, the elevator can be integrated into the elevator shaft is.
  • a conventional drive motor for example an asynchronous motor
  • the drive motor can be arranged in an area above a door fighter profile and thus exploit an otherwise unused area.
  • the drive motor can also be arranged below the lowest door frame become. Due to its flat design, the driving wheel can, for example be arranged behind a side vertical guide rail.
  • the pulley with a bent support part is particularly advantageous provided, creating an annular receiving space for one on the brake disc acting braking device arises. This does not protrude beyond the outer dimensions the driving wheel.
  • a braking device according to the invention on a driving wheel it is ensured that if the electrical power supply fails, the The brake closes automatically and the car is stopped.
  • the braking device can also be used with other drive units Find.
  • a pressure medium reservoir is particularly advantageously provided in order to thereby create a pressure medium reservoir manual ventilation of the brake and thus a movement of the car even after To allow failure of the pump providing the pressure medium.
  • FIG. 1 in an elevator 1, the has a vertical shaft 2 for moving a car 3 up and down, In the head region 4 of the shaft 2, an inventive drive with a drive wheel 5 and a drive motor 6 acting thereon.
  • the Shaft 2 is closed at the top and bottom and does not have a separate one Machine room on.
  • the drive wheel 5 comprises a traction sheave 7, which is overrun by ropes 8, on which the car 3 is attached.
  • the drive wheel 5 has a pulley 9 and a brake disc 10 of a disc brake, which with the pulley 9 and Traction sheave 7 is combined to form a flat drive wheel 5.
  • the drive wheel 5 is on a support frame 11 about a fixed axis of rotation 12 stored.
  • a rocker 13 is articulated, which the drive motor 6 carries, the rocker 13 via a tension spring 14 with a Force is applied in the sense of tensioning a drive belt 15 the rocker 13 acts.
  • the tension spring 14 is not only the one shown mechanical spring, but also other known clamping elements, for example also hydraulically acting.
  • the axis of rotation 12 of the driving wheel 5 is vertical in the guide plane 16 Guide rails 17 arranged that the vertical longitudinal median plane of the car 3 are assigned.
  • the support frame 11 can in the space between the Guide rail 17 and a side shaft wall 18 arranged to save space his.
  • the shaft 19 of the drive motor 6 is parallel to Level 20 of floors 21 which block access to shaft 2 arranged.
  • the drive motor 6 is in the area above a door fighter profile 22 held, whereby the here in the shadow area of the door fighter profile 22 resulting pocket-like, otherwise unused area of the shaft 2 is being used.
  • the drive therefore enables a very space-saving arrangement.
  • the drive motor 6 is located on the side of the movement corridor of the car 3.
  • the drive wheel 5 is constructed so that the brake disc 10 is made in one piece with a Hub part 23 is formed and the drive pulley 7 and the pulley 9th are fixed on the hub part 23 via a bolt connection 24.
  • the hub part 23 is on a pivot pin 25 comprising the axis of rotation 12, which on the Support frame 11 is supported, stored.
  • the traction sheave 7 has the smallest diameter and is from the brake disc 10 protrudes radially.
  • the pulley 9 projects beyond the brake disc 10 and has a cranked portion 26 of its support member, thereby making one Recording space 27 forms for receiving at least one braking device 28.
  • the brake device 28 with its brake shoes 29 on the brake disc 10 acts, therefore does not protrude the driving wheel 5.
  • the drive belt 15 provides a speed reduction between the motor shaft 19 and the pulley 9 safely, for the car 3 over the Ropes 8, which is arranged at the upper edge region of the counterweight 30 Roll over 31, a 2: 1 suspension can be formed.
  • the frame 11 provided for holding the drive wheel 5 has a drive wheel 5 enclosing main part 32, which has a front and a back Sheet 33.34 and this connecting cross bracket 35, the total of in Well arranged base 36 are screwed, includes. From the main part 32 extends outwardly a cantilever part 37 on which the rocker 13 for the drive motor 6 is articulated on a pivot axis 38. This too Cantilever part 37 is present both in front of and behind the drive wheel 5, so that a one-sided loading of the linkage 38 is avoided.
  • the torque transmitting connection between the drive motor 6 and the drive wheel 5 is produced via at least one drive belt 15.
  • This is designed as a flat V-ribbed belt, which has a high Has tensile strength along its direction and also low wear is.
  • a support frame 111 of the drive according to the invention arranged in the shaft base 40, wherein in turn, the support frame 111 carries the drive wheel 5 and the drive motor 6.
  • the cables 8 are not held by the rotating drive wheel 5
  • a carrier 41 is additionally arranged in the shaft head 4, which corresponds with corresponding Deflection rollers 42 for holding and deflecting the cables 8 is provided.
  • a fixed holder 43 for a rope end is also arranged in the shaft head 4.
  • the drive wheel 5 and the drive motor 6 can be of the same type in one pocket-like lower edge region 42 of the shaft 2 below a lower one Frame profile 43 of a door 21 are placed. Again, there is the drive motor 6 held outside the lifting corridor of the car 3.
  • a deviation in the embodiment shown in FIG. 8 compared to that shown above Version arises in that the axis of rotation 12 of the driving wheel 5 is not in the management level 16 lies, but is laterally offset against this. This is however not mandatory, but the arrangement in the lower area can be the same be carried out as in the above embodiment.
  • the brake disc 10, which forms part of the drive wheel 5, assigned at least one braking device 28, which has its brake shoes 29 on the Brake disc 10 can act.
  • two are each other opposing braking devices 28 are provided for the driving wheel 5.
  • the Braking device 28 comprises two arms 50, which hold the brake shoes 29, on Axes of rotation 51 are held pivotably.
  • On the brake shoes 29 opposite The side of the brake arms 50 is at least one - usually several - Compression spring 52 is arranged, the arms about the pivot axes 51 in Closure actuated so that the brakes by the mechanical compression spring 52 28 engage.
  • At least one hydraulic cylinder 53 provided, the one in the direction of opening when pressurized with pressure medium the brake shoes 29 acting force on the arms 50. Thereby the brake shoes 29 can be released and held in the open position.
  • Such braking devices 28 can basically be used with each driving wheel 5.
  • the particularly compact design shown here makes the use Such a braking device 28 is particularly useful.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

The drive motor(6) of the lift acts through a transmission belt on a drive pulley(9) located axially parallel. The drive pulley is connected by a friction pulley(7) located co-axially with it to a flat drive wheel(5). The drive pulley and friction pulley are combined with a brake disc(10). The drive wheel is mounted on a support frame(11) by a fixed pivot, and the drive motor is supported on a swinging arm(13) hinged to the frame and loaded by a tension spring.

Description

Die Erfindung bezieht sich auf einen Antrieb für einen Aufzug mit einem an Seilen gehaltenen Fahrkorb nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a drive for an elevator with a rope held car according to the preamble of claim 1.

Bei einem bekannten Antrieb dieser Art (GB-A-574 040) ist die Treibscheibe zwischen einer Keilriemenscheibe und der Bremsscheibe einer Trommelbremse angeordnet, und die eine gemeinsam drehbare Einheit bildenden Scheiben sind auf einer Achse abgestützt, die beidseits in Trägerkonsolen gelagert ist. Dies bedingt eine ausladende Bauweise des Antriebs, der in einem gesonderten Maschinenraum untergebracht wird.In a known drive of this type (GB-A-574 040) is the traction sheave between a V-belt pulley and the brake disc of a drum brake arranged, and which are disks forming a jointly rotatable unit supported on an axle that is supported on both sides in support brackets. This requires a protruding construction of the drive in a separate machine room is housed.

Der Erfindung liegt das Problem zugrunde, einen in den Aufzugsschacht integrierbaren Antrieb für den Fahrkorb eines Aufzugs zu schaffen, bei dem ein herkömmlicher Antriebsmotor Verwendung finden kann.The invention is based on the problem of an integrable in the elevator shaft To create drive for the elevator car, in which a conventional Drive motor can be used.

Die Erfindung löst dieses Problem durch einen Antrieb mit den Merkmalen des Patentanspruchs 1. Hinsichtlich weiterer Ausgestaltungen wird auf die Patentansprüche 2 bis 14 verwiesen.The invention solves this problem by a drive with the features of Claim 1. With regard to further refinements, reference is made to the claims 2 to 14 referenced.

Der Antrieb nach der Erfindung schafft mit der besonderen Anordnung der Scheiben und dem Einsatz eines Keilrippen-Flachriementriebs eine besonders flache Baueinheit eines Treibrades, die infolge der räumlichen Trennung von Treibrad und Antriebsmotor flexibel an räumliche Gegebenheiten anpaßbar ist, so daß auch bei Verwendung eines herkömmlichen Antriebsmotors, beispielsweise eines Asynchronmotors, der Aufzug in den Aufzugsschacht integrierbar ist. Wenn die Welle des Antriebsmotors beispielsweise parallel zur Ebene von etagenweise den Zugang zu dem Schacht sperrenden Türen ausgerichtet wird, kann der Antriebsmotor in einem Bereich oberhalb eines Türkämpferprofils angeordnet werden und damit einen anderweitig ungenutzten Bereich ausnutzen. Der Antriebsmotor kann aber auch unterhalb des untersten Türrahmens angeordnet werden. Infolge seiner flachen Bauweise kann das Treibrad beispielsweise hinter einer seitlichen Vertikalführungsschiene angeordnet werden. The drive according to the invention creates with the special arrangement of the Disks and the use of a V-ribbed flat belt drive a special flat assembly of a driving wheel, which is due to the spatial separation of Driving wheel and drive motor can be flexibly adapted to spatial conditions, so that even when using a conventional drive motor, for example an asynchronous motor, the elevator can be integrated into the elevator shaft is. For example, if the shaft of the drive motor is parallel to the plane of level access to the shaft-locking doors is aligned, The drive motor can be arranged in an area above a door fighter profile and thus exploit an otherwise unused area. The drive motor can also be arranged below the lowest door frame become. Due to its flat design, the driving wheel can, for example be arranged behind a side vertical guide rail.

Besonders vorteilhaft ist die Riemenscheibe mit einem abgekröpften Trägerteil versehen, wodurch ein ringförmiger Aufnahmeraum für eine auf die Bremsscheibe einwirkende Bremsvorrichtung entsteht. Diese ragt nicht über die Außenabmessungen des Treibrades hinaus. Bei Verwendung einer erfindungsgemäßen Bremsvorrichtung an einem Treibrad ist sichergestellt, daß bei Ausfall der elektrischen Spannungsversorgung die Bremse automatisch schließt und der Fahrkorb damit angehalten wird. Eine solche Bremsvorrichtung kann grundsätzlich auch bei anderen Antriebseinheiten Anwendung finden.The pulley with a bent support part is particularly advantageous provided, creating an annular receiving space for one on the brake disc acting braking device arises. This does not protrude beyond the outer dimensions the driving wheel. When using a braking device according to the invention on a driving wheel it is ensured that if the electrical power supply fails, the The brake closes automatically and the car is stopped. Such In principle, the braking device can also be used with other drive units Find.

Besonders vorteilhaft ist ein Druckmittelreservoir vorgesehen, um dadurch eine manuelle Belüftung der Bremse und somit ein Verfahren des Fahrkorbs auch nach Ausfall der das Druckmittel bereitstellenden Pumpe zu ermöglichen.A pressure medium reservoir is particularly advantageously provided in order to thereby create a pressure medium reservoir manual ventilation of the brake and thus a movement of the car even after To allow failure of the pump providing the pressure medium.

Weitere Vorteile und Einzelheiten ergeben sich aus in der Zeichnung dargestellten Ausführungsbeispielen des Gegenstandes der Erfindung. In der Zeichnung zeigt:

Fig. 1
einen Längsschnitt durch einen Schachtkopf bei Anordnung des Treibrades und des Antriebsmotors des erfindungsgemäßen Antriebs im Schachtkopfbereich,
Fig. 2
einen Längsschnitt durch den unteren Bereich des Schachts in Fig. 1,
Fig. 3
einen Schnitt entlang der Linie III-III in Fig. 1,
Fig. 4
einen Schnitt entlang der Linie IV-IV in Fig. 1,
Fig. 5
das Einzelteil V aus Fig. 1,
Fig. 6
eine Draufsicht zu Fig. 5,
Fig. 7
eine Fig. 1 ähnliche Darstellung eines Aufzugs, bei dem das Treibrad und der Antriebsmotor im Schachtgrund montiert sind,
Fig. 8
den Schachtgrundbereich des Aufzugsschachts nach Fig. 7,
Fig. 9
einen Schnitt entlang der Linie IX-IX in Fig. 7,
Fig. 10
einen im Bereich des Antriebsmotors aufgebrochenen Schnitt entlang der Linie X-X in Fig. 8,
Fig. 11
eine schematische, teilweise geschnittene Draufsicht auf eine erfindungsgemäße Bremsvorrichtung.
Further advantages and details emerge from exemplary embodiments of the subject matter of the invention shown in the drawing. The drawing shows:
Fig. 1
2 shows a longitudinal section through a shaft head when the drive wheel and the drive motor of the drive according to the invention are arranged in the shaft head region,
Fig. 2
2 shows a longitudinal section through the lower region of the shaft in FIG. 1,
Fig. 3
2 shows a section along the line III-III in FIG. 1,
Fig. 4
2 shows a section along the line IV-IV in FIG. 1,
Fig. 5
the item V from Fig. 1,
Fig. 6
5 shows a plan view of FIG. 5,
Fig. 7
1 similar representation of an elevator, in which the drive wheel and the drive motor are mounted in the shaft bottom,
Fig. 8
the shaft base area of the elevator shaft according to FIG. 7,
Fig. 9
7 shows a section along the line IX-IX in FIG. 7,
Fig. 10
8 shows a section broken open in the area of the drive motor along the line XX in FIG. 8,
Fig. 11
is a schematic, partially sectioned plan view of a braking device according to the invention.

In einem ersten Ausführungsbeispiel (Fig. 1 bis Fig. 6) ist bei einem Aufzug 1, der einen vertikalen Schacht 2 zur Auf- und Abbewegung eines Fahrkorbs 3 aufweist, im Kopfbereich 4 des Schachts 2 ein erfindungsgemäßer Antrieb mit einem Treibrad 5 sowie einem darauf einwirkenden Antriebsmotor 6 vorgesehen. Der Schacht 2 ist ober- und unterseitig abgeschlossen und weist keinen separaten Maschinenraum auf.In a first exemplary embodiment (FIGS. 1 to 6) in an elevator 1, the has a vertical shaft 2 for moving a car 3 up and down, In the head region 4 of the shaft 2, an inventive drive with a drive wheel 5 and a drive motor 6 acting thereon. The Shaft 2 is closed at the top and bottom and does not have a separate one Machine room on.

Das Treibrad 5 umfaßt eine Treibscheibe 7, die von Seilen 8 überlaufen ist, an denen der Fahrkorb 3 angehängt ist. Zudem weist das Treibrad 5 eine Riemenscheibe 9 sowie eine Bremsscheibe 10 einer Scheibenbremse auf, die mit der Riemenscheibe 9 und der Treibscheibe 7 zu dem eine flache Baueinheit bildenden Treibrad 5 vereinigt ist. Das Treibrad 5 ist an einem Tragrahmen 11 um eine ortsfeste Drehachse 12 gelagert. An dem Tragrahmen 11 ist eine Schwinge 13 angelenkt, die den Antriebsmotor 6 trägt, wobei die Schwinge 13 über eine Spannfeder 14 mit einer Kraft beaufschlagt wird, die im Sinne eines Spannens eines Treibriemens 15 auf die Schwinge 13 einwirkt. Als Spannfeder 14 kommt nicht nur die gezeichnete mechanische Feder, sondern auch andere bekannte Spannelemente in Betracht, beispielsweise auch hydraulisch wirkende.The drive wheel 5 comprises a traction sheave 7, which is overrun by ropes 8, on which the car 3 is attached. In addition, the drive wheel 5 has a pulley 9 and a brake disc 10 of a disc brake, which with the pulley 9 and Traction sheave 7 is combined to form a flat drive wheel 5. The drive wheel 5 is on a support frame 11 about a fixed axis of rotation 12 stored. On the support frame 11, a rocker 13 is articulated, which the drive motor 6 carries, the rocker 13 via a tension spring 14 with a Force is applied in the sense of tensioning a drive belt 15 the rocker 13 acts. The tension spring 14 is not only the one shown mechanical spring, but also other known clamping elements, for example also hydraulically acting.

Die Drehachse 12 des Treibrads 5 ist in der Führungsebene 16 von vertikalen Führungsschienen 17 angeordnet, die der vertikalen Längsmittelebene des Fahrkorbs 3 zugeordnet sind. Der Tragrahmen 11 kann in dem Raum zwischen der Führungsschiene 17 und einer seitlichen Schachtwandung 18 platzsparend angeordnet sein.The axis of rotation 12 of the driving wheel 5 is vertical in the guide plane 16 Guide rails 17 arranged that the vertical longitudinal median plane of the car 3 are assigned. The support frame 11 can in the space between the Guide rail 17 and a side shaft wall 18 arranged to save space his.

Bei dem Einbaubeispiel ist die Welle 19 des Antriebsmotors 6 parallel zur Ebene 20 von etagenweise den Zugang zu dem Schacht 2 sperrenden Türen 21 angeordnet. Der Antriebsmotor 6 ist dabei im Bereich oberhalb eines Türkämpferprofils 22 gehalten, wodurch der hier im Schattenraum des Türkämpferprofils 22 entstandene taschenartige, ansonsten ungenutzte Bereich des Schachts 2 genutzt wird. Der Antrieb ermöglicht daher eine sehr raumsparende Anordnung. Der Antriebsmotor 6 sitzt dabei seitlich des Bewegungskorridors des Fahrkorbs 3.In the installation example, the shaft 19 of the drive motor 6 is parallel to Level 20 of floors 21 which block access to shaft 2 arranged. The drive motor 6 is in the area above a door fighter profile 22 held, whereby the here in the shadow area of the door fighter profile 22 resulting pocket-like, otherwise unused area of the shaft 2 is being used. The drive therefore enables a very space-saving arrangement. The drive motor 6 is located on the side of the movement corridor of the car 3.

Das Treibrad 5 ist so aufgebaut, daß die Bremsscheibe 10 einstückig mit einem Nabenteil 23 ausgebildet ist und die Treibscheibe 7 sowie die Riemenscheibe 9 über eine Bolzenverbindung 24 auf dem Nabenteil 23 festgelegt sind. Der Nabenteil 23 ist auf einem die Drehachse 12 umfassenden Lagerzapfen 25, der an dem Tragrahmen 11 abgestützt ist, gelagert.The drive wheel 5 is constructed so that the brake disc 10 is made in one piece with a Hub part 23 is formed and the drive pulley 7 and the pulley 9th are fixed on the hub part 23 via a bolt connection 24. The hub part 23 is on a pivot pin 25 comprising the axis of rotation 12, which on the Support frame 11 is supported, stored.

Die Treibscheibe 7 hat den geringsten Durchmesser und wird von der Bremsscheibe 10 radial überragt. Die Riemenscheibe 9 überragt die Bremsscheibe 10 und weist einen abgekröpften Bereich 26 seines Trägerteils auf, wodurch sie einen Aufnahmeraum 27 ausbildet zur Aufnahme zumindest einer Bremsvorrichtung 28. Die Bremsvorrichtung 28, die mit ihren Bremsbacken 29 auf die Bremsscheibe 10 einwirkt, überragt daher nicht das Treibrad 5.The traction sheave 7 has the smallest diameter and is from the brake disc 10 protrudes radially. The pulley 9 projects beyond the brake disc 10 and has a cranked portion 26 of its support member, thereby making one Recording space 27 forms for receiving at least one braking device 28. The brake device 28 with its brake shoes 29 on the brake disc 10 acts, therefore does not protrude the driving wheel 5.

Der Treibriemen 15 stellt eine Untersetzung der Drehzahl zwischen der Motorwelle 19 und der Riemenscheibe 9 sicher, wobei für den Fahrkorb 3 über die Seile 8, die eine am oberen Randbereich des Gegengewichts 30 angeordnete Rolle 31 überlaufen, eine 2:1-Aufhängung ausgebildet werden kann.The drive belt 15 provides a speed reduction between the motor shaft 19 and the pulley 9 safely, for the car 3 over the Ropes 8, which is arranged at the upper edge region of the counterweight 30 Roll over 31, a 2: 1 suspension can be formed.

Der zur Halterung des Treibrads 5 vorgesehene Rahmen 11 weist einen das Treibrad 5 umschließenden Hauptteil 32 auf, der ein vorderseitiges und ein rückseitiges Blech 33,34 sowie diese verbindende Querhalter 35, die insgesamt auf im Schacht angeordnete Sockel 36 aufgeschraubt sind, umfaßt. Von dem Hauptteil 32 erstreckt sich auswärtsgerichtet ein Kragteil 37, an dem die Schwinge 13 für den Antriebsmotor 6 an einer Schwenkachse 38 angelenkt ist. Auch dieser Kragteil 37 ist sowohl vor als auch hinter dem Treibrad 5 vorhanden, so daß eine einseitige Belastung der Anlenkung 38 vermieden ist.The frame 11 provided for holding the drive wheel 5 has a drive wheel 5 enclosing main part 32, which has a front and a back Sheet 33.34 and this connecting cross bracket 35, the total of in Well arranged base 36 are screwed, includes. From the main part 32 extends outwardly a cantilever part 37 on which the rocker 13 for the drive motor 6 is articulated on a pivot axis 38. This too Cantilever part 37 is present both in front of and behind the drive wheel 5, so that a one-sided loading of the linkage 38 is avoided.

Die drehmomentübertragende Verbindung zwischen dem Antriebsmotor 6 und dem Treibrad 5 ist über zumindest einen Treibriemen 15 hergestellt. Dieser ist als flacher Keilrippenriemen ausgebildet, der eine hohe Dehnfestigkeit entlang seiner Verlaufsrichtung aufweist und zudem verschleißarm ist.The torque transmitting connection between the drive motor 6 and the drive wheel 5 is produced via at least one drive belt 15. This is designed as a flat V-ribbed belt, which has a high Has tensile strength along its direction and also low wear is.

In einem alternativen Ausführungsbeispiel (Fig. 7 bis Fig. 10) ist ein Tragrahmen 111 des erfindungsgemäßen Antriebs im Schachtgrund 40 angeordnet, wobei wiederum der Tragrahmen 111 das Treibrad 5 und den Antriebsmotor 6 trägt. Da die Seile 8 in diesem Fall nicht von dem umlaufenden Treibrad 5 gehalten werden, ist im Schachtkopf 4 zusätzlich ein Träger 41 angeordnet, der mit entsprechenden Umlenkrollen 42 zur Halterung und Umlenkung der Seile 8 versehen ist. Auch eine feste Halterung 43 für ein Seilende ist im Schachtkopf 4 angeordnet. Bei dieser Anordnung ist ebenfalls an dem Tragrahmen 111 ein Kragteil 137 vorgesehen, der wiederum eine Schwinge 13 hält. Auch die Beaufschlagung durch eine Feder 14 ist in entsprechender Weise verwirklicht. Bei grundsätzlicher Gleichartigkeit des Treibrades 5 und des Antriebsmotors 6 kann dieser in einem taschenartigen unteren Randbereich 42 des Schachts 2 unterhalb eines unteren Rahmenprofils 43 einer Tür 21 plaziert werden. Wiederum ist dabei der Antriebsmotor 6 außerhalb des Hubkorridors des Fahrkorbs 3 gehalten. Eine Abweichung im gezeigten Ausführungsbeispiel gemäß Fig. 8 gegenüber der oben gezeigten Version ergibt sich insofern, als die Drehachse 12 des Treibrads 5 nicht in der Führungsebene 16 liegt, sondern seitlich gegen diese versetzt ist. Dieses ist allerdings nicht zwingend, sondern die Anordnung im unteren Bereich kann genauso ausgeführt werden wie im oberen Ausführungsbeispiel.In an alternative embodiment (Fig. 7 to Fig. 10) is a support frame 111 of the drive according to the invention arranged in the shaft base 40, wherein in turn, the support frame 111 carries the drive wheel 5 and the drive motor 6. There in this case the cables 8 are not held by the rotating drive wheel 5, a carrier 41 is additionally arranged in the shaft head 4, which corresponds with corresponding Deflection rollers 42 for holding and deflecting the cables 8 is provided. A fixed holder 43 for a rope end is also arranged in the shaft head 4. In this arrangement, there is also a cantilever 137 on the support frame 111 provided, which in turn holds a rocker 13. Even the application is realized in a corresponding manner by a spring 14. With basic The drive wheel 5 and the drive motor 6 can be of the same type in one pocket-like lower edge region 42 of the shaft 2 below a lower one Frame profile 43 of a door 21 are placed. Again, there is the drive motor 6 held outside the lifting corridor of the car 3. A deviation in the embodiment shown in FIG. 8 compared to that shown above Version arises in that the axis of rotation 12 of the driving wheel 5 is not in the management level 16 lies, but is laterally offset against this. This is however not mandatory, but the arrangement in the lower area can be the same be carried out as in the above embodiment.

In jedem Fall ist der Bremsscheibe 10, die einen Teil des Treibrads 5 ausbildet, zumindest eine Bremsvorrichtung 28 zugeordnet, die über ihre Bremsbacken 29 auf die Bremsscheibe 10 einwirken kann. Im Ausführungsbeispiel sind zwei einander gegenüberliegende Bremsvorrichtungen 28 für das Treibrad 5 vorgesehen. Die Bremsvorrichtung 28 umfaßt zwei die Bremsbacken 29 haltende Arme 50, die an Drehachsen 51 schwenkbar gehalten sind. Auf der den Bremsbacken 29 gegenüberliegenden Seite der Bremsarme 50 ist zumindest eine - in der Regel mehrere - Druckfeder 52 angeordnet, die die Arme um die Schwenkachsen 51 im Schließsinn betätigt, so daß durch die mechanische Druckfeder 52 die Bremsen 28 in Eingriff gelangen.In any case, the brake disc 10, which forms part of the drive wheel 5, assigned at least one braking device 28, which has its brake shoes 29 on the Brake disc 10 can act. In the exemplary embodiment, two are each other opposing braking devices 28 are provided for the driving wheel 5. The Braking device 28 comprises two arms 50, which hold the brake shoes 29, on Axes of rotation 51 are held pivotably. On the brake shoes 29 opposite The side of the brake arms 50 is at least one - usually several - Compression spring 52 is arranged, the arms about the pivot axes 51 in Closure actuated so that the brakes by the mechanical compression spring 52 28 engage.

Zur Gegenwirkung gegen die Kraft der Federn 52 ist zumindest ein Hydraulikzylinder 53 vorgesehen, der bei Beaufschlagung mit Druckmittel eine im Öffnungssinn der Bremsbacken 29 wirkende Kraft auf die Arme 50 erteilt. Dadurch können die Bremsbacken 29 gelöst und in Offenstellung gehalten werden.To counteract the force of the springs 52 is at least one hydraulic cylinder 53 provided, the one in the direction of opening when pressurized with pressure medium the brake shoes 29 acting force on the arms 50. Thereby the brake shoes 29 can be released and held in the open position.

Durch ein Druckmittelreservoir - nicht eingezeichnet - ist auch nach Ausfall einer das Druckmittel bereitstellenden Pumpe - etwa bei Ausfall der elektrischen Versorgungsspannung - ein Belüften der Bremse durch Ventilbetätigung mitteils einer Hilfsstromquelle möglich. Dadurch kann der Fahrkorb 3 auch dann noch in eine beliebige Position verfahren werden.Through a pressure medium reservoir - not shown - is one even after failure the pump providing the pressure medium - for example if the electrical supply voltage fails - The brake is ventilated by valve actuation Auxiliary power source possible. As a result, the car 3 can still be in a any position can be moved.

Derartige Bremsvorrichtungen 28 sind grundsätzlich bei jedem Treibrad 5 einsetzbar. Die hier gezeigte besonders kompakte Bauweise macht die Verwendung einer derartigen Bremsvorrichtung 28 besonders sinnvoll.Such braking devices 28 can basically be used with each driving wheel 5. The particularly compact design shown here makes the use Such a braking device 28 is particularly useful.

Claims (14)

  1. A drive for a lift (1) with a cage (3) held on ropes (8), which cage can be traversed up and down in a shaft (2) extending vertically, with a driving pulley (7) for the ropes (8) of the cage (3) and a drive motor (6) for said driving pulley, whereby the drive motor (6) drives a belt pulley (9), mounted axis-parallel, via a driving belt (15), and the belt pulley (9), the driving pulley (7) and the brake disc (10) are assigned to one another and assembled coaxially, characterised in that the belt pulley (9) and the driving pulley (7) on both sides of the brake disc of a disc brake (10) are united with the latter to form a flat driving wheel (5) and a wedge-ribbed flat belt is provided as the driving belt (15).
  2. The drive according to claim 1, characterised in that the driving wheel (5) is mounted about a stationary rotary axis (12) on a bearing frame (11) and the drive motor (6) is supported on a rocker (13), which is linked to the bearing frame (11) and acted upon by a tension spring (14).
  3. The drive according to claim 1 or 2, characterised in that , in the assembled position of the parts, the rotary axis (12) of the driving wheel (5) is arranged in the guide plane (16) of vertical guide rails (17) assigned to the vertical longitudinal mid-plane of the cage (3).
  4. The drive according to any one of claims 1 to 3, characterised in that the drive motor (6) is formed by an asynchronous motor.
  5. The drive according to any one of claims 1 to 4, characterised in that the belt pulley (9) and the driving pulley (7) are connected on both sides of the brake disc (10) with a hub part (23), which is mounted on an axle joumal (25) supported by the bearing frame (11).
  6. The drive according to claim 5, characterised in that brake disc (10) and hub part (23) are designed in one piece.
  7. The drive according to any one of claims 5 or 6, characterised in that the belt pulley (9) projects beyond the brake disc (10) and the latter beyond the driving pulley (7), whereby the belt pulley (9) has an offset carrier part for the formation of a receiving space (27) for a braking device (28).
  8. The drive according to any one of claims 2 to 7, characterised in that the bearing frame (11; 111) has a main part (32) surrounding the driving wheel (5) and a cantilever part (37; 137) issuing from said main part, on the end of which cantilever part the rocker (13) for the drive motor (6) is linked.
  9. The drive according to any one of claims 1 to 8, characterised in that the speed of the driving wheel (5) is stepped down with respect to the speed of the drive motor (6) for a drive of the cage (3) by means of the ropes (8) in a 2:1 suspension.
  10. The drive according to claim 1, characterised in that a disc brake with at least one braking device (28) for the brake disc (10) is assigned to the driving wheel (5), whereby the brake pads (29), brake shoes or such elements of the braking device (8) are moveable into brake engagement and held by means of at least one mechanical spring (52) and moveable out of brake engagement and held by means of a hydraulic cylinder (53) acted on by a pressure medium.
  11. The drive according to claim 10, characterised by a pressure medium reservoir for ventilating the brake (28), said pressure medium reservoir being acted on by a pump.
  12. The drive according to any one of claims 1 to 12, characterised in that , in the assembled position of the parts, the shaft (19) of the drive motor (6) is aligned parallel to the plane of doors (21) blocking access to the shaft storey by storey.
  13. A lift including a drive according to any one of claims 1 to 12, characterised in that the drive motor (6) can be fitted in an area above an upper door transom profile (22) and above the latter in the shaft headroom (4).
  14. A lift induding a drive according to any one of claims 1 to 12, characterised in that the drive motor (6) can be fitted beneath the lower door frame (43) in an area (42) of the shaft base formed by said door frame and the walls of the shaft lying thereunder.
EP99105433A 1998-04-09 1999-03-17 Drive unit for an elevator with a car fixed to cables Expired - Lifetime EP0949181B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29806526U 1998-04-09
DE29806526U DE29806526U1 (en) 1998-04-09 1998-04-09 Elevator with a car held on ropes

Publications (3)

Publication Number Publication Date
EP0949181A2 EP0949181A2 (en) 1999-10-13
EP0949181A3 EP0949181A3 (en) 2001-10-04
EP0949181B1 true EP0949181B1 (en) 2004-08-04

Family

ID=8055563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99105433A Expired - Lifetime EP0949181B1 (en) 1998-04-09 1999-03-17 Drive unit for an elevator with a car fixed to cables

Country Status (3)

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EP (1) EP0949181B1 (en)
AT (1) ATE272566T1 (en)
DE (2) DE29806526U1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK0999169T3 (en) * 1998-11-02 2004-05-24 Inventio Ag Elevator with downstairs furnished engine room
ATE306455T1 (en) 1999-08-19 2005-10-15 Inventio Ag ELEVATOR SYSTEM WITH A DRIVE UNIT ARRANGE IN AN ELEVATOR SHAFT
EP1081086B1 (en) * 1999-08-19 2005-10-12 Inventio Ag Liftarrangement with a drive unit positioned in the liftshaft
WO2001027016A1 (en) * 1999-10-08 2001-04-19 Osma-Aufzüge Albert Schenk Gmbh & Co. Kg Elevator drive
DE19948946A1 (en) * 1999-10-11 2001-04-19 Wittur Ag An elevator drive system is compact and contained in the elevator shaft having a multibelt drive wheel and a flat, synthetic lifting cable.
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
JP2004142927A (en) 2002-10-28 2004-05-20 Toshiba Elevator Co Ltd Elevator device
DE60303871D1 (en) * 2003-12-23 2006-05-04 Thyssenkrupp Aufzugswerke Gmbh Drive for lifts

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR844460A (en) * 1938-04-05 1939-07-26 Vernes Guinet Ets Gearless winch for high speed elevators and similar applications
GB574040A (en) * 1943-12-22 1945-12-18 Express Lift Co Ltd Improvements in or relating to hoisting arrangements for lifts and the like
JPH04292391A (en) * 1991-03-20 1992-10-16 Hitachi Ltd Elevator
FI94123C (en) * 1993-06-28 1995-07-25 Kone Oy Pinion Elevator
FI93632C (en) * 1993-06-28 1995-05-10 Kone Oy Sub-lift type drive lift

Also Published As

Publication number Publication date
DE29806526U1 (en) 1998-07-23
DE59910092D1 (en) 2004-09-09
EP0949181A3 (en) 2001-10-04
EP0949181A2 (en) 1999-10-13
ATE272566T1 (en) 2004-08-15

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