EP1431233B1 - Hydraulic rope drive for elevators - Google Patents

Hydraulic rope drive for elevators Download PDF

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Publication number
EP1431233B1
EP1431233B1 EP20030028881 EP03028881A EP1431233B1 EP 1431233 B1 EP1431233 B1 EP 1431233B1 EP 20030028881 EP20030028881 EP 20030028881 EP 03028881 A EP03028881 A EP 03028881A EP 1431233 B1 EP1431233 B1 EP 1431233B1
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Prior art keywords
drive
hydraulic
motor
cable
hub
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EP20030028881
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German (de)
French (fr)
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EP1431233A1 (en
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Sebode Georg
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Hydro Space GmbH
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/0423—Driving gear ; Details thereof, e.g. seals actuated pneumatically or hydraulically

Definitions

  • the invention relates to a hydraulic cable drive for elevators, with a traction sheave, at least one braking device and at least one hydraulic motor.
  • Such a cable drive is for example in the DE-U 69 27 188 disclosed.
  • a traction sheave for passenger and goods lifts which uses a slow-running hydraulic motor to drive, the outer housing is firmly connected to a traction sheave.
  • the traction sheave is equipped with a braking device.
  • the axis of the hydraulic motor is clamped on both sides of the traction sheave in two bearing blocks.
  • the traction sheave rotates with the housing of the hydraulic motor.
  • Object of the present invention is therefore to provide a hydraulic cable drive for elevators available that is suitable for mounting in the elevator shaft by a compact structure and does not have the disadvantages described above.
  • the power density of a hydraulic motor which is up to a factor of 20 higher than that of conventional electric motors, enables direct coupling of the drive shaft to the hub of the traction sheave, thereby eliminating the need for a gearbox, resulting in a very compact drive structure.
  • the integrated in the traction sheave braking device ensures next to the compact design for extra security, as well as in the event of breakage of the output shaft of the elevator safely held by the brake will and can not crash. It is also possible to easily maintain the engine and replace it if necessary, without having to dismantle the entire elevator drive.
  • brake integrated into the motor allows a particularly cost-effective implementation of the drive. When using a corresponding deep-drawn hub of the drive motor protrudes only slightly out of the traction sheave.
  • the hub of the traction sheave is mounted on the outside in a projecting into the interior of the traction sheave, the motor housing bearing mounting block, a particularly compact construction of the drive is given.
  • the fastening element also carries the brake in addition to the motor housing and the traction sheave. With the fastener secure mounting of the drive in the elevator shaft is possible.
  • the braking device has a drum brake arranged between the hub and the drive pulley rim.
  • Such an integrated drum brake is characterized by a particularly low space requirement, since it does not increase in particular the overall depth of the drive.
  • the brake device has a brake disk arranged on the outside of the traction sheave.
  • a brake disk arranged on the outside of the traction sheave.
  • Such an additional or alternative to the drum brake mounted outer brake disc may be useful depending on the application. In addition to increasing the braking power with good metering, it can improve the system performance of the drive, especially in heavily frequented elevators.
  • an orbital or a vane motor or a slow-running axial or radial piston engine is provided with a high number of chambers as a motor.
  • the different motors with their specific advantages and disadvantages can be used for the drive.
  • the slow-running axial or radial piston motors with a high number of chambers due to their high power density, are particularly useful for elevator arrangements in which a direct 1: 1 ratio between counterweight and elevator is used.
  • Fast rotating engines are advantageous in a 2: 1 suspension of the cab to the counterweight.
  • a hydraulic control valve is arranged directly on the drive.
  • the direct arrangement of the control valve on the drive ensures good stability in the control loop. Too long cable routes Namely between the hydraulic motor and the corresponding control valves can lead to mechanical vibrations in this hydraulic circuit, which should be avoided if possible. Due to the direct arrangement on the drive preferred by rigid pipe connections as possible between the engine and valve, such vibrations can effectively prevent and ensure good controllability of the drive in all operating ranges.
  • sensors are provided for detecting engine speed and / or hydraulic pressure and / or hydraulic oil temperature and / or valve control variables and possibly further system variables.
  • By detecting the system states it is possible to ensure accurate control of the elevator.
  • speed and other system sizes can be compensated by measuring pressure, temperature and valve position corresponding disturbances in the system. A safe lift operation is guaranteed even under heavy use of the system and thus increased oil temperature, because the resulting lower oil viscosity can be compensated.
  • An embodiment of the conveyor drive provides that for controlling the hydraulic control valve an optionally integrated in this electronic control device, in particular a microcontroller, is provided.
  • a microcontroller in conjunction with an electro-hydraulic control valve allows flexible control and regulation of the elevator.
  • the drive system can be configured for a wide range of application areas and achieve a correspondingly flexible system structure.
  • the control problems that occur ie the loading and direction of travel, dependent operation of the engine as a brake or drive in advance or reverse direction controlled by a microcontroller safely.
  • the invention also relates to an elevator with an elevator shaft and an elevator car and a cable drive described above, which is characterized in that the drive is provided in the elevator shaft.
  • a generally designated 1 inventive cable drive is, as shown in Fig. 1, mounted in the shaft head of a hoistway.
  • an elevator car 2 and a counterweight 3 are arranged, which has approximately the same mass as the elevator car plus half their maximum payload. Both the elevator car and the counterweight are vertically displaceable guided in rails 4.
  • a supporting cable 5 is guided from its one-sided attachment in the shaft head via rollers on the elevator car via a traction sheave 6 of the drive 1 to a deflection roller fixed to the counterweight 3 and from here to its second attachment in the shaft head.
  • a flat belt with steel wire inserts can also be used.
  • the traction sheave 6 of the drive 1 is driven and decelerated by a hydraulic motor 7. Via supply lines 8 hydraulic fluid is passed from a pressure medium supply 9 to the motor 7.
  • the structure of the cable drive according to the invention is shown in more detail in Fig. 2.
  • the traction sheave 6 is preferably rotatably mounted with spherical roller bearings 10 in a mounting block 11.
  • a motor shaft 12 of the hydraulic motor 7 is positively connected (key 13a) with the hub 13 of the traction sheave, so that a power transmission in both directions of rotation between the motor 7 and the traction sheave 6 is possible.
  • a drum brake device is also arranged.
  • a circumferential outer edge of the traction sheave 6 is formed as a brake disc 16.
  • the masses attached to the supporting cables 5 can not crash even in the event of breakage of the shaft 12 or other defect of the drive motor 7, but are held in their position by the brakes.
  • the mounting block 11 has fastening screws 17 in the lower section, with which it can be fastened on a support 18 in the shaft head, as shown in more detail in FIG.
  • the outside attached to the traction sheave disc 16 is held by a braking device 19 by two hydraulically vented brake shoes 20.
  • the invention is not limited to the embodiment, but can be modified in many ways without departing from the spirit.
  • different hydraulic motors can be used.
  • the dimensions and embodiments of the traction sheave, the braking devices such as motor-integrated designs, or the like. can be varied depending on the purpose.

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

Description

Die Erfindung betrifft einen hydraulischen Seilantrieb für Aufzüge, mit einer Treibscheibe, wenigstens einer Bremseinrichtung und wenigstens einem Hydromotor.The invention relates to a hydraulic cable drive for elevators, with a traction sheave, at least one braking device and at least one hydraulic motor.

Ein solcher Seilantrieb ist beispielsweise in der DE-U 69 27 188 offenbart. In dieser Schrift ist eine Treibscheibenwinde für Personen- und Lastenaufzüge beschrieben, die zum Antrieb einen langsam laufenden Hydromotor verwendet, dessen äußeres Gehäuse fest mit einer Treibscheibe verbunden ist. Die Treibscheibe ist mit einer Bremseinrichtung ausgestattet. Die Achse des Hydromotors ist beidseitig der Treibscheibe in zwei Lagerböcke eingespannt. Die Treibscheibe dreht sich mit dem Gehäuse des Hydromotors. Dieser Antrieb baut groß und schwer, der Hydromotor ist bei Wartung und Instandhaltung nicht erreichbar und damit für einen maschinenraumlosen Aufzug unbrauchbar.Such a cable drive is for example in the DE-U 69 27 188 disclosed. In this document, a traction sheave for passenger and goods lifts is described, which uses a slow-running hydraulic motor to drive, the outer housing is firmly connected to a traction sheave. The traction sheave is equipped with a braking device. The axis of the hydraulic motor is clamped on both sides of the traction sheave in two bearing blocks. The traction sheave rotates with the housing of the hydraulic motor. This drive builds large and heavy, the hydraulic motor is not accessible during maintenance and servicing and thus unusable for a machine room-less elevator.

Aus DE 198 46 671 A1 ist eine Treibscheibe mit integrierter Bremseinrichtung bekannt, die groß, schwer, kompliziert und dadurch teuer ist. Sie ist nicht als kompakter Antrieb in einem Aufzugschacht geeignet. Eine ähnliche nachteilige Lösung ist aus JP 11157766 bekannt.Out DE 198 46 671 A1 a traction sheave with integrated braking device is known, which is large, heavy, complicated and therefore expensive. It is not suitable as a compact drive in a hoistway. A similar disadvantageous solution is out JP 11157766 known.

Aufgabe der vorliegenden Erfindung ist es daher, einen hydraulischen Seilantrieb für Aufzüge zur Verfügung zu stellen, der sich durch einen kompakten Aufbau für eine Montage im Aufzugschacht eignet und die vorbeschriebenen Nachteile nicht aufweist.Object of the present invention is therefore to provide a hydraulic cable drive for elevators available that is suitable for mounting in the elevator shaft by a compact structure and does not have the disadvantages described above.

Diese Aufgabe wird bei einem hydraulischen Seilantrieb der eingangs bezeichneten Art dadurch gelöst, dass die Abtriebswelle des Hydromotors direkt mit der Nabe der Treibscheibe innenseitig der Nabe gekuppelt und die Bremseinrichtung in die Treibscheibe oder in den Hydromotor integriert ist, wobei die Nabe der Treibscheibe außenseitig in einem in das Innere der Treibscheibe hineinragenden, das Motorgehäuse tragenden Befestigungsblock gelagert ist.This object is achieved in a hydraulic cable drive of the type described above in that the output shaft of the hydraulic motor coupled directly to the hub of the traction sheave inside the hub and the braking device is integrated into the traction sheave or in the hydraulic motor, the hub of the traction sheave on the outside in a mounted in the interior of the traction sheave, the motor housing bearing mounting block is mounted.

Die im Vergleich zu herkömmlichen Elektromotoren bis um den Faktor 20 höhere Leistungsdichte eines Hydromotors ermöglicht die direkte Kupplung der Antriebswelle mit der Nabe der Treibscheibe und dadurch den Verzicht auf ein Getriebe, was zu einem sehr kompakten Antriebsaufbau führt. Die in die Treibscheibe integrierte Bremseinrichtung sorgt neben dem kompakten Aufbau für eine zusätzliche Sicherheit, da auch im Falle des Bruches der Abtriebswelle der Aufzug von der Bremse sicher gehalten wird und nicht abstürzen kann. Es ist außerdem möglich, den Motor einfach zu warten und ggf. auszutauschen, ohne den kompletten Aufzugsantrieb demontieren zu müssen. Eine in den Motor integrierte Bremse ermöglicht demgegenüber eine besonders kostengünstige Realisierung des Antriebes. Bei der Verwendung einer entsprechend tiefgezogenen Nabe ragt der Antriebsmotor nur geringfügig aus der Treibscheibe hinaus.The power density of a hydraulic motor, which is up to a factor of 20 higher than that of conventional electric motors, enables direct coupling of the drive shaft to the hub of the traction sheave, thereby eliminating the need for a gearbox, resulting in a very compact drive structure. The integrated in the traction sheave braking device ensures next to the compact design for extra security, as well as in the event of breakage of the output shaft of the elevator safely held by the brake will and can not crash. It is also possible to easily maintain the engine and replace it if necessary, without having to dismantle the entire elevator drive. A In contrast, brake integrated into the motor allows a particularly cost-effective implementation of the drive. When using a corresponding deep-drawn hub of the drive motor protrudes only slightly out of the traction sheave.

Dadurch, dass die Nabe der Treibscheibe außenseitig in einem in das Innere der Treibscheibe hineinragenden, das Motorgehäuse tragenden Befestigungsblock gelagert ist, ist ein besonders kompakter Aufbau des Antriebes gegeben. Das Befestigungselement trägt neben dem Motorgehäuse und der Treibscheibe ggf. auch die Bremse. Mit dem Befestigungselement ist eine sichere Montage des Antriebes im Aufzugschacht möglich.Characterized in that the hub of the traction sheave is mounted on the outside in a projecting into the interior of the traction sheave, the motor housing bearing mounting block, a particularly compact construction of the drive is given. If necessary, the fastening element also carries the brake in addition to the motor housing and the traction sheave. With the fastener secure mounting of the drive in the elevator shaft is possible.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous embodiments of the invention will become apparent from the dependent claims.

So kann bevorzugt vorgesehen sein, dass die Bremseinrichtung eine zwischen der Nabe und dem Treibscheibenkranz angeordnete Trommelbremse aufweist. Eine solche integrierte Trommelbremse zeichnet sich durch einen besonders geringen Raumbedarf aus, da sie insbesondere die Bautiefe des Antriebes nicht vergrößert.Thus, it can preferably be provided that the braking device has a drum brake arranged between the hub and the drive pulley rim. Such an integrated drum brake is characterized by a particularly low space requirement, since it does not increase in particular the overall depth of the drive.

In einer weiteren Ausgestaltung der Erfindung ist vorgesehen, dass die Bremseinrichtung eine an der Außenseite der Treibscheibe angeordnete Bremsscheibe aufweist. Eine solche zusätzlich oder alternativ zur Trommelbremse angebrachte äußere Bremsscheibe kann je nach Einsatzzweck sinnvoll sein. Neben einer Verstärkung der Bremsleistung bei gleichzeitig guter Dosierbarkeit kann sie insbesondere bei stark frequentierten Aufzügen die Systemleistung des Antriebes verbessern.In a further embodiment of the invention is provided the brake device has a brake disk arranged on the outside of the traction sheave. Such an additional or alternative to the drum brake mounted outer brake disc may be useful depending on the application. In addition to increasing the braking power with good metering, it can improve the system performance of the drive, especially in heavily frequented elevators.

Zweckmäßig kann es sein, dass als Motor ein Orbital- oder ein Flügelzellenmotor oder ein langsam laufender Axial- oder Radialkolbenmotor mit hoher Kammernzahl vorgesehen ist. Abhängig vom Einsatzzweck sind die unterschiedlichen Motoren mit ihren spezifischen Vor- und Nachteilen für den Antrieb verwendbar. So sind die langsam laufenden Axial- oder Radialkolbenmotoren mit hoher Kammernzahl durch ihre hohe Leistungsdichte besonders für Aufzuganordnungen sinnvoll, bei denen eine direkte 1:1-Übersetzung zwischen Gegengewicht und Aufzug verwandt wird. Schneller drehende Motoren sind bei einer 2:1-Aufhängung der Kabine zum Gegengewicht vorteilhaft.Appropriately, it may be that an orbital or a vane motor or a slow-running axial or radial piston engine is provided with a high number of chambers as a motor. Depending on the application, the different motors with their specific advantages and disadvantages can be used for the drive. Thus, the slow-running axial or radial piston motors with a high number of chambers, due to their high power density, are particularly useful for elevator arrangements in which a direct 1: 1 ratio between counterweight and elevator is used. Fast rotating engines are advantageous in a 2: 1 suspension of the cab to the counterweight.

Es kann vorteilhaft vorgesehen sein, dass ein hydraulisches Regelventil direkt am Antrieb angeordnet ist. Die direkte Anordnung des Regelventils am Antrieb sorgt für eine gute Stabilität im Regelkreis. Zu lange Leitungswege zwischen dem Hydraulikmotor und den entsprechenden Regelventilen können nämlich zu mechanischen Schwingungen in diesem Hydraulikkreis führen, was es möglichst zu vermeiden gilt. Durch die direkte Anordnung am Antrieb bevorzugt durch möglichst starre Rohrverbindungen zwischen Motor und Ventil, lassen sich solche Schwingungen wirksam verhindern und eine gute Regelbarkeit des Antriebs in allen Betriebsbereichen gewährleisten.It can be advantageously provided that a hydraulic control valve is arranged directly on the drive. The direct arrangement of the control valve on the drive ensures good stability in the control loop. Too long cable routes Namely between the hydraulic motor and the corresponding control valves can lead to mechanical vibrations in this hydraulic circuit, which should be avoided if possible. Due to the direct arrangement on the drive preferred by rigid pipe connections as possible between the engine and valve, such vibrations can effectively prevent and ensure good controllability of the drive in all operating ranges.

Sinnvoll ist es, dass Sensoren zur Erfassung von Motordrehzahl und/oder Hydraulikdruck und/oder Hydrauliköltemperatur und/oder Ventilstellgrößen sowie ggf. weiterer Systemgrößen vorgesehen sind. Durch die Erfassung der Systemzustände ist es möglich, eine genaue Regelung des Aufzuges zu gewährleisten. Neben der Motordrehzahl, die in Verbindung mit der Kabinengeschwindigkeit zur Regelung der Aufzugsposition, -geschwindigkeit und weiterer Systemgrößen benutzt wird, lassen sich durch die Messung von Druck, Temperatur und Ventilstellung entsprechende Störgrößen im System kompensieren. Ein sicherer Aufzugbetrieb wird auch bei starker Beanspruchung des Systems und dadurch gestiegener Öltemperatur garantiert, weil die resultierende geringere Öl-Viskosität ausgeglichen werden kann.It makes sense that sensors are provided for detecting engine speed and / or hydraulic pressure and / or hydraulic oil temperature and / or valve control variables and possibly further system variables. By detecting the system states, it is possible to ensure accurate control of the elevator. In addition to the engine speed, which is used in conjunction with the cabin speed to control the elevator position, speed and other system sizes, can be compensated by measuring pressure, temperature and valve position corresponding disturbances in the system. A safe lift operation is guaranteed even under heavy use of the system and thus increased oil temperature, because the resulting lower oil viscosity can be compensated.

Eine Ausgestaltung des Förderantriebes sieht vor, dass zur Steuerung des hydraulischen Regelventils eine ggf. in dieses integrierte, elektronische Steuereinrichtung, insbesondere ein Microcontroller, vorgesehen ist. Ein Microcontroller in Verbindung mit einem elektrohydraulischen Regelventil ermöglicht eine flexible Steuerung und Regelung des Aufzuges. So läßt sich das Antriebssystem für eine weite Klasse von Anwendungsbereichen konfigurieren und ein entsprechend flexibler Systemaufbau erreichen. Bei dem bevorzugten Betrieb des Aufzuges im Vier-Quadranten-Betrieb, bei dem das Gegengewicht dem Kabinengewicht plus der halben maximalen Zuladung entspricht, lassen sich die auftretenden Regelprobleme, also vom Beladungs- und Fahrtrichtungszustand, abhängige Betriebsweise des Motors als Bremse oder Antrieb in Vor- oder Rückwärtsrichtung durch einen Microcontroller sicher beherrschen.An embodiment of the conveyor drive provides that for controlling the hydraulic control valve an optionally integrated in this electronic control device, in particular a microcontroller, is provided. A microcontroller in conjunction with an electro-hydraulic control valve allows flexible control and regulation of the elevator. Thus, the drive system can be configured for a wide range of application areas and achieve a correspondingly flexible system structure. In the preferred operation of the elevator in four-quadrant operation, in which the counterweight corresponds to the cabin weight plus half the maximum payload, the control problems that occur, ie the loading and direction of travel, dependent operation of the engine as a brake or drive in advance or reverse direction controlled by a microcontroller safely.

Außerdem betrifft die Erfindung auch einen Aufzug mit einem Aufzugschacht und einer Aufzugskabine sowie einem vorbeschriebenen Seilantrieb, der sich dadurch auszeichnet, dass der Antrieb im Aufzugschacht vorgesehen ist.In addition, the invention also relates to an elevator with an elevator shaft and an elevator car and a cable drive described above, which is characterized in that the drive is provided in the elevator shaft.

Die Anordnung des Antriebes im Aufzugschacht bietet eine Reihe von Vorteilen, insbesondere, dass kein Maschinenraum mehr vorgesehen sein muss, was die Kosten einer solchen Aufzuganlage erheblich reduziert. Solche Anordnungen werden allerdings erst durch den besonders kompakten Aufbau des erfindungsgemäßen Antriebes ermöglicht. Bis auf den Antrieb und das Ventil sind keine weiteren Komponenten neben Aufzug und Gegengewicht im Aufzugschacht nötig, da die Hydraulikversorgung an einem beliebigen, auch weiter entfernten Ort beherbergt sein kann.The arrangement of the drive in the hoistway offers a number of advantages, in particular that no machine room must be provided more, which significantly reduces the cost of such an elevator system. Such arrangements, however, only by the particularly compact design allows the drive according to the invention. Apart from the drive and the valve, no additional components are needed in addition to the lift and counterweight in the elevator shaft, since the hydraulic supply can be located at any location, even more remote.

Die Erfindung ist nachstehend anhand der Zeichnung beispielhaft näher erläutert. Diese zeigt in

Fig. 1
eine dreidimensionale schematische Ansicht eines mit einem erfindungsgemäßen Seilantriebes angetriebenen Aufzuges,
Fig. 2
eine Seitenansicht, teilweise geschnitten, des erfindungsgemäßen Seilantriebes sowie in
Fig. 3
eine Teilvorderansicht des erfindungsgemäßen Antriebes.
The invention is explained in more detail below by way of example with reference to the drawing. This shows in
Fig. 1
a three-dimensional schematic view of an elevator driven by a cable drive according to the invention,
Fig. 2
a side view, partially cut, of the cable drive according to the invention and in
Fig. 3
a partial front view of the drive according to the invention.

Ein allgemein mit 1 bezeichneter erfindungsgemäßer Seilantrieb ist, wie in Fig. 1 dargestellt, im Schachtkopf eines Aufzugschachtes montiert. In diesem Schacht sind eine Aufzugskabine 2 und ein Gegengewicht 3 angeordnet, das etwa dieselbe Masse besitzt, wie die Aufzugskabine plus ihrer halben maximalen Zuladung. Sowohl die Aufzugskabine als auch das Gegengewicht sind vertikal verschiebbar in Schienen 4 geführt.A generally designated 1 inventive cable drive is, as shown in Fig. 1, mounted in the shaft head of a hoistway. In this shaft, an elevator car 2 and a counterweight 3 are arranged, which has approximately the same mass as the elevator car plus half their maximum payload. Both the elevator car and the counterweight are vertically displaceable guided in rails 4.

Ein Tragseil 5 wird von seiner einseitigen Befestigung im Schachtkopf über Rollen an der Aufzugskabine über eine Treibscheibe 6 des Antriebes 1 zu einer am Gegengewicht 3 befestigten Umlenkrolle und von hier zu seiner zweiten Befestigung im Schachtkopf geführt. Anstelle des Tragseils 5 kann auch ein Flachriemen mit Stahldrahteinlagen verwendet werden.A supporting cable 5 is guided from its one-sided attachment in the shaft head via rollers on the elevator car via a traction sheave 6 of the drive 1 to a deflection roller fixed to the counterweight 3 and from here to its second attachment in the shaft head. Instead of the support cable 5, a flat belt with steel wire inserts can also be used.

Die Treibscheibe 6 des Antriebes 1 wird durch einen Hydraulikmotor 7 angetrieben und verzögert. Über Versorgungsleitungen 8 wird Hydraulikflüssigkeit von einer Druckmittelversorgung 9 zum Motor 7 geleitet.The traction sheave 6 of the drive 1 is driven and decelerated by a hydraulic motor 7. Via supply lines 8 hydraulic fluid is passed from a pressure medium supply 9 to the motor 7.

Der Aufbau des erfindungsgemäßen Seilantriebes ist in Fig. 2 näher dargestellt. Die Treibscheibe 6 ist vorzugsweise mit Pendelrollen-Kugellagern 10 in einem Befestigungsblock 11 drehbar gelagert. Eine Motorwelle 12 des hydraulischen Motors 7 ist formschlüssig (Passfeder 13a) mit der Nabe 13 der Treibscheibe verbunden, so dass eine Kraftübertragung in beide Drehrichtungen zwischen dem Motor 7 und der Treibscheibe 6 möglich ist.The structure of the cable drive according to the invention is shown in more detail in Fig. 2. The traction sheave 6 is preferably rotatably mounted with spherical roller bearings 10 in a mounting block 11. A motor shaft 12 of the hydraulic motor 7 is positively connected (key 13a) with the hub 13 of the traction sheave, so that a power transmission in both directions of rotation between the motor 7 and the traction sheave 6 is possible.

Im Befestigungsblock 11 ist außerdem eine Trommelbremseinrichtung angeordnet. Dazu werden hydraulisch belüftete Bremsblöcke 14 zum Bremsen von einer Feder 15 radial nach außen gegen das Innere der Treibscheibe 6 gepresst, wodurch diese gehalten wird. Ferner ist ein umlaufender äußerer Rand der Treibscheibe 6 als Bremsscheibe 16 ausgebildet.In the mounting block 11, a drum brake device is also arranged. These are hydraulically ventilated Brake blocks 14 for braking by a spring 15 pressed radially outward against the interior of the traction sheave 6, whereby it is held. Furthermore, a circumferential outer edge of the traction sheave 6 is formed as a brake disc 16.

Durch die direkte Wirkung der Bremseinrichtungen auf die Treibscheibe 6 können auch im Falle eines Bruchs der Welle 12 oder sonstigen Defektes des Antriebsmotors 7 die an den Tragseilen 5 befestigten Massen nicht abstürzen, sondern werden durch die Bremsen in ihrer Position gehalten.Due to the direct effect of the braking devices on the traction sheave 6, the masses attached to the supporting cables 5 can not crash even in the event of breakage of the shaft 12 or other defect of the drive motor 7, but are held in their position by the brakes.

Der Befestigungsblock 11 weist im unteren Abschnitt Befestigungsschrauben 17 auf, mit denen er auf einem Träger 18 im Schachtkopf befestigt werden kann, wie dies in Fig. 3 näher dargestellt ist.The mounting block 11 has fastening screws 17 in the lower section, with which it can be fastened on a support 18 in the shaft head, as shown in more detail in FIG.

Die außen an der Treibscheibe angebrachte Bremsscheibe 16 wird von einer Bremseinrichtung 19 durch zwei hydraulisch entlüftete Bremsbacken 20 gehalten.The outside attached to the traction sheave disc 16 is held by a braking device 19 by two hydraulically vented brake shoes 20.

Natürlich ist die Erfindung nicht auf das Ausführungsbeispiel beschränkt, sondern kann in vielfacher Hinsicht abgeändert werden, ohne den Grundgedanken zu verlassen. So sind insbesondere vom Einsatzzweck abhängig, unterschiedliche Hydraulikmotoren einsetzbar. Auch die Dimensionen und Ausgestaltungen der Treibscheibe, der Bremseinrichtungen wie im Motor integrierte Bauformen, o.ä. können vom Einsatzzweck abhängig variiert werden.Of course, the invention is not limited to the embodiment, but can be modified in many ways without departing from the spirit. Thus, depending on the purpose, different hydraulic motors can be used. Also the dimensions and embodiments of the traction sheave, the braking devices such as motor-integrated designs, or the like. can be varied depending on the purpose.

Claims (8)

  1. Hydraulic cable drive for lifts, with a drive pulley, at least one braking device and at least one hydromotor,
    characterized in that
    the driven shaft (12) of the hydromotor (7) is directly connected to the hub (13) of the drive pulley (6) on the inside of the hub and the braking device is integrated in the drive pulley or in the hydromotor, wherein the hub of the drive pulley (6) is housed on the outside in a fixing block (11), projecting into the inside of the drive pulley (6), that carries the motor casing.
  2. Cable drive according to claim 1,
    characterized in that
    the braking device has a drum brake (14) arranged between the hub (13) and the drive pulley rim.
  3. Cable drive according to claim 1 or 2,
    characterized in that
    the braking device has a brake disk (16) arranged on the outside of the drive pulley (6).
  4. Cable drive according to one of the previous claims,
    characterized in that
    as motor (7) an orbital- or vane motor or slow-running axial- and/or radial piston motor with a high number of chambers is provided.
  5. Cable drive according to one of the previous claims,
    characterized in that
    a hydraulic control valve is attached directly to the drive mechanism (1).
  6. Cable drive according to one of the previous claims,
    characterized in that
    sensors for recording motor speed and/or hydraulic pressure and/or hydraulic oil temperature and/or valve-correcting variables and optionally further system variables are provided.
  7. Cable drive according to one of the previous claims,
    characterized in that
    to control the hydraulic control valve, an electronic control device, in particular a microcontroller, optionally integrated in this, is provided.
  8. Lift with a lift shaft and a lift car and with a cable drive according to one of the previous claims,
    characterized in that
    the drive mechanism (1) is provided in the lift shaft.
EP20030028881 2002-12-18 2003-12-16 Hydraulic rope drive for elevators Expired - Lifetime EP1431233B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10259147 2002-12-18
DE2002159147 DE10259147A1 (en) 2002-12-18 2002-12-18 Hydraulic cable drive for lifts

Publications (2)

Publication Number Publication Date
EP1431233A1 EP1431233A1 (en) 2004-06-23
EP1431233B1 true EP1431233B1 (en) 2007-11-21

Family

ID=32336429

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030028881 Expired - Lifetime EP1431233B1 (en) 2002-12-18 2003-12-16 Hydraulic rope drive for elevators

Country Status (2)

Country Link
EP (1) EP1431233B1 (en)
DE (2) DE10259147A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109607361B (en) * 2018-12-21 2023-11-10 广东富士电梯有限公司 Elevator car top wheel device with oiling and rope blocking functions

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63106289A (en) * 1986-10-22 1988-05-11 株式会社日立製作所 Fluid pressure elevator
DE19827497B4 (en) * 1997-06-19 2005-02-17 Wittur Ag elevator
JPH11157766A (en) * 1997-11-28 1999-06-15 Hitachi Ltd Hoist
DE19846671A1 (en) * 1998-10-09 2000-04-13 Erhard Mueller Drive plate brake for self-propelled conveyer systems, especially elevators for people/goods, with increased redundancy has brake units in star formation and equally effective in both directions
JP2000247559A (en) * 1999-02-24 2000-09-12 Hitachi Ltd Elevator device
JP2001355659A (en) * 2000-04-27 2001-12-26 Inventio Ag Disc brake for elevator driving device

Also Published As

Publication number Publication date
EP1431233A1 (en) 2004-06-23
DE50308637D1 (en) 2008-01-03
DE10259147A1 (en) 2004-10-07

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