EP1338545B1 - Emergency drive for an elevator - Google Patents

Emergency drive for an elevator Download PDF

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Publication number
EP1338545B1
EP1338545B1 EP20030002870 EP03002870A EP1338545B1 EP 1338545 B1 EP1338545 B1 EP 1338545B1 EP 20030002870 EP20030002870 EP 20030002870 EP 03002870 A EP03002870 A EP 03002870A EP 1338545 B1 EP1338545 B1 EP 1338545B1
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EP
European Patent Office
Prior art keywords
traction sheave
motor
drive
emergency
emergency drive
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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
EP20030002870
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German (de)
French (fr)
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EP1338545A1 (en
Inventor
Andrzej Masch.-Ing. Cholinski
Heinrich Masch.-Ing. Küttel
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Inventio AG
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Inventio AG
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Priority to EP20030002870 priority Critical patent/EP1338545B1/en
Publication of EP1338545A1 publication Critical patent/EP1338545A1/en
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Publication of EP1338545B1 publication Critical patent/EP1338545B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door

Definitions

  • the invention relates to an emergency drive for an elevator with an elevator car and a counterweight moving drive unit consisting of motor and traction sheave, are connected to the elevator car and the counterweight connected ropes, wherein in emergency operation of the emergency drive acts on the drive unit and the traction sheave on the periphery drives and on the traction sheave a sprocket is provided which is in communication with a pinion of an engine of the emergency drive.
  • a reciprocating motor fed with alternating voltage consists essentially of a stator and of a rotor with a rotor hub which can be pushed onto the main shaft. At the drive end of the main shaft creates a second clamping set a firm connection between the Main shaft and rotor hub.
  • a manual drive with a worm gear acting on the main shaft enables a manual movement of the main shaft in the event of a power failure.
  • a disadvantage of the known device is that a great effort to move the main shaft is necessary.
  • such emergency drives are very expensive.
  • an elevator drive consisting of a disc motor with integrated traction sheave and outer shoe brake has become known.
  • a sprocket On the inside of a brake drum, a sprocket is provided, in which a pinion of an emergency drive acts during emergency operation.
  • the rotor of the motor is disk-shaped, wherein the traction sheave on the rotor and the brake drum are arranged on the circumference of the rotor.
  • a disadvantage of this emergency drive is the production of complex and expensive, disc-shaped rotor with traction sheave and brake drum with internal sprocket.
  • the invention aims to remedy this situation.
  • the invention as characterized in claim 1 solves the problem of avoiding the disadvantages of the known device and to propose a simply built emergency drive.
  • Fig. 1 shows the ready assembled drive unit, consisting essentially of a motor 1, serving as a bearing plate motor stand 2, serving as a bearing plate bearing block 5, a traction sheave 15 and a machine frame 7 with counter-roller carrier 9.
  • a motor 1 serving as a bearing plate motor stand 2
  • a traction sheave 15 and a machine frame 7 with counter-roller carrier 9.
  • the stator of the electric motor 1 is screwed by means of a flange to the motor stand 2.
  • the rotor of the electric motor 1 is seated on a free end of a shaft carrying the traction sheave 15, which is mounted on the bearing block 5 and the motor stator 2.
  • the free end of the shaft projects beyond the motor stand 2.
  • the traction sheave 15, which is visible through an outbreak in a cable protection shuttering 3, is mounted on the motor stand 2 and on the bearing block 5 by means of the shaft.
  • a brake 6 is arranged in the inner region of the motor stator 2 and covered with the shuttering 3. Depending on the structure of the drive unit, the brake 6 can also be arranged in the inner region of the bearing block 5.
  • the motor stand 2 and the bearing block 5 are arranged on the machine frame 7, which has an adjustable support element 8 at its corners.
  • the counter-roller carrier 9 is arranged on the underside of the machine frame 7. All electrical connections of the drive unit are located in a terminal box 10.
  • the traction sheave 15 is accessible after opening a sliding cover 47 from the outside.
  • Fig. 2a to 4b The structural design of the emergency drive is in the Fig. 2a to 4b explained in more detail, wherein in Fig. 2a and 2b an assembled and in Fig. 4a and 4b an exploded view of the assembly can be seen.
  • Fig. 3 shows details of a arranged on the traction sheave 15 sprocket 39 and Fig. 5a and 5b an auxiliary device for the emergency drive.
  • the sprocket 39 is constructed of toothed segments 39.1, which sit by means of clamping pins 40 which are hammered through the holes 39.2 and in the corresponding holes 15.1 in the traction sheave 15.
  • the screws 41 which are inserted through the ring gear 39 and screwed into the traction sheave 15, hold the segments 39.1 together in the axial direction.
  • a segment 39.1 is made up of layered, toothed sheet metal segments which can be produced inexpensively by means of stamping or cutting processes.
  • the sprocket 39 is composed of a plurality of mutually offset in the circumferential direction layers of toothed segments 39.1, each segment 39.1 have at least two holes 39.2 for the pressed in the holes 15.1 of the traction sheave 15 dowels 40.
  • the ring gear 39 is driven by means of a pinion 42 mounted on the shaft of a hydraulic motor 43.
  • the motor 43 is used for this purpose in a receiving bore 5.1 of the bearing block 5 and secured with screws.
  • the receiving bore 5.1 is located in the area covered by a cover 45.
  • a mains-powered or battery-powered electric motor can be provided.
  • a motor-driven toothed belt which transmits the motor power to a toothed ring provided instead of the toothed ring gear 39, the toothed belt wheel as the ring gear 39 is disposed on the circumference of the traction sheave 15.
  • the end cap 45 has an opening 45.1, which is closable with a guided in the guides 45.2, 48 and 49 sliding cover 47.
  • the sliding cover 47 Before the introduction of the hydraulic motor 43, the sliding cover 47 must be brought into the open position.
  • a safety switch 50 the plunger 50.1 projecting through the hole 45.3 in the end cover 45, pushed back by the actuation curve 47.1, wherein a safety circuit is interrupted, so that the operation of the electric motor 1 during emergency operation is not possible.
  • Fig. 5a and Fig. 5b show a mobile hydraulic unit, which consists of a carriage 51 with a support 51.1 for the hydraulic motor 43, a support 51.2 for receiving a hydraulic unit 52, wheels 51.3, a bracket 51.4 for placing the hydraulic hoses and two other brackets 51.5 for rolling up the electric cable for the power supply a pump motor 53 is made.
  • the hydraulic unit 52 consists of a pump with pump motor 53, which can be turned on via a motor switch 54 and a directional control valve 55 for the control of the hydraulic motor 43. Further elements of the hydraulic unit 52 are an adjustable pressure relief valve 56 and an oil filter 57. In engine rooms without emergency power supply can instead of the pump motor 53, a hand pump with hydraulic accumulator may be provided.

Landscapes

  • Cage And Drive Apparatuses For Elevators (AREA)

Description

Die Erfindung betrifft einen Notantrieb für einen Aufzug mit einer eine Aufzugskabine und ein Gegengewicht bewegende Antriebseinheit bestehend aus Motor und Treibscheibe, über die mit der Aufzugskabine und dem Gegengewicht verbundene Seile geführt sind, wobei bei Notbetrieb der Notantrieb auf die Antriebseinheit einwirkt und die Treibscheibe am Umfang antreibt und an der Treibscheibe ein Zahnkranz vorgesehen ist, der in Verbindung steht mit einem Ritzel eines Motors des Notantriebes.The invention relates to an emergency drive for an elevator with an elevator car and a counterweight moving drive unit consisting of motor and traction sheave, are connected to the elevator car and the counterweight connected ropes, wherein in emergency operation of the emergency drive acts on the drive unit and the traction sheave on the periphery drives and on the traction sheave a sprocket is provided which is in communication with a pinion of an engine of the emergency drive.

Aus der Patentschrift EP 0 468 168 B1 ist eine getriebelose Antriebsmaschine für Aufzüge bekannt geworden, bei der ein Maschinenrahmen einen Lagerbock und einen Schildbock trägt. Eine Hauptwelle ist mittels eines am Lagerbock angeordneten Loslagers und mittels eines am Schildbock angeordneten Festlagers abtriebsseitig an zwei Stellen gelagert. Zwischen den Lagerstellen ist eine Treibscheibe mit Bremsscheibe vorgesehen. Die Treibscheibe steht mittels eines ersten Spannsatzes in fester Verbindung mit der Hauptwelle. Die beidseitige Lagerung der Treibscheibe erlaubt bei kleinen Deformationen der Hauptwelle grosse Radiallasten. Ein mit Wechselspannung gespeister Hubmotor besteht im wesentlichen aus einem Stator und aus einem Rotor mit einer auf die Hauptwelle aufschiebbaren Rotornabe. Am antriebsseitigen Ende der Hauptwelle schafft ein zweiter Spannsatz eine feste Verbindung zwischen der Hauptwelle und der Rotornabe. Am den Lagerbock und den Schildbock tragenden Maschinenrahmen ist auch ein Gegenrollenträger mit einer Gegenrolle angeordnet, die dazu dient, den durch die Abmessungen der Aufzugskabine und des Gegengewichtes sowie der Seilführung vorgegebenen Seilstrangabstand einzuhalten. Ein auf die Hauptwelle wirkender Handantrieb mit einem Schneckengetriebe ermöglicht bei Spannungsausfall ein manuelles Bewegen der Hauptwelle.From the Patent EP 0 468 168 B1 has become known a gearless drive machine for elevators, in which a machine frame carries a bearing block and a Schildbock. A main shaft is mounted on the output side at two points by means of a bearing mounted on the bearing block and by means of a arranged on the Schildbock fixed bearing. Between the bearings a traction sheave with brake disc is provided. The traction sheave is fixedly connected to the main shaft by means of a first clamping set. The two-sided storage of the traction sheave allows large radial loads with small deformations of the main shaft. A reciprocating motor fed with alternating voltage consists essentially of a stator and of a rotor with a rotor hub which can be pushed onto the main shaft. At the drive end of the main shaft creates a second clamping set a firm connection between the Main shaft and rotor hub. On the bearing block and the Schildbock bearing machine frame and a counter-roller carrier is arranged with a counter-roller, which serves to comply with the predetermined by the dimensions of the elevator car and the counterweight and the cable guide wire rope distance. A manual drive with a worm gear acting on the main shaft enables a manual movement of the main shaft in the event of a power failure.

Ein Nachteil der bekannten Einrichtung liegt darin, dass ein grosser Kraftaufwand zum Bewegen der Hauptwelle notwendig ist. Ausserdem sind derartige Notantriebe sehr teuer.A disadvantage of the known device is that a great effort to move the main shaft is necessary. In addition, such emergency drives are very expensive.

Aus der EP 0 733 577 A2 ist ein Aufzugsantrieb bestehend aus einem Scheibenmotor mit integrierter Treibscheibe und Aussenbackenbremse bekannt geworden. An der Innenseite einer Bremstrommel ist ein Zahnkranz vorgesehen, in den ein Ritzel eines Notantriebes bei Notbetrieb einwirkt. Der Rotor des Motors ist scheibenförmig ausgebildet, wobei die Treibscheibe am Rotor und die Bremstrommel am Umfang des Rotors angeordnet sind.From the EP 0 733 577 A2 is an elevator drive consisting of a disc motor with integrated traction sheave and outer shoe brake has become known. On the inside of a brake drum, a sprocket is provided, in which a pinion of an emergency drive acts during emergency operation. The rotor of the motor is disk-shaped, wherein the traction sheave on the rotor and the brake drum are arranged on the circumference of the rotor.

Nachteilig bei diesem Notantrieb ist die Herstellung des komplexen und kostenintensiven, scheibenförmigen Rotors mit Treibscheibe und Bremstrommel mit innenliegendem Zahnkranz.A disadvantage of this emergency drive is the production of complex and expensive, disc-shaped rotor with traction sheave and brake drum with internal sprocket.

Hier will die Erfindung Abhilfe schaffen. Die Erfindung, wie sie in Anspruch 1 gekennzeichnet ist, löst die Aufgabe, die Nachteile der bekannten Einrichtung zu vermeiden und einen einfach gebauten Notantrieb vorzuschlagen.The invention aims to remedy this situation. The invention, as characterized in claim 1 solves the problem of avoiding the disadvantages of the known device and to propose a simply built emergency drive.

Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, dass die bisher je Antriebseinheit verwendeten schweren und teuren Getriebe durch einen kompakten Antrieb ersetzt werden, der je Maschinenraum lediglich einmal vorhanden sein muss. Der Antrieb wird nur bei der sich im Notbetrieb befindenden Antriebseinheit eingesetzt. Nach dem Notbetrieb wird der Antrieb wieder von der Antriebseinheit entfernt. Weiter vorteilhaft ist die kostengünstige Herstellung des an der Treibscheibe angeordneten Zahnkranzes, wobei die Zahnsegmente aus geschichteten, verzahnten Blechsegmenten aufgebaut sind, die mittels Stanz- oder Schneidverfahren billig herstellbar sind.The advantages achieved by the invention are essentially to be seen in the fact that the heavy and expensive gearboxes ever used for each drive unit are replaced by a compact drive which only has to be present once per engine room. The drive is only used when the drive unit is in emergency operation. After emergency operation, the drive is removed again from the drive unit. Also advantageous is the cost-effective production of the arranged on the traction sheave sprocket, wherein the tooth segments are constructed of layered, toothed sheet metal segments that are inexpensive to produce by means of stamping or cutting process.

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

Es zeigen:

  • Fig. 1
    eine Antriebseinheit mit Treibscheibe,
  • Fig. 2a und 2b
    die Treibscheibe mit einem Zahnkranz,
  • Fig. 3
    Einzelheiten des Zahnkranzes,
  • Fig. 4a und 4b
    eine explodierte Darstellung der Fig. 2a und 2b und
  • Fig. 5a und 5b
    eine Hilfseinrichtung für den Notantrieb.
Show it:
  • Fig. 1
    a drive unit with traction sheave,
  • Fig. 2a and 2b
    the traction sheave with a sprocket,
  • Fig. 3
    Details of the sprocket,
  • Fig. 4a and 4b
    an exploded view of the Fig. 2a and 2b and
  • Fig. 5a and 5b
    an auxiliary device for the emergency drive.

Fig. 1 zeigt die fertig zusammengebaute Antriebseinheit, im wesentlichen bestehend aus einem Motor 1, einem als Lagerschild dienender Motorständer 2, einem als Lagerschild dienender Lagerbock 5, einer Treibscheibe 15 und einem Maschinenrahmen 7 mit Gegenrollenträger 9. Über die Treibscheibe 15 sind nicht dargestellte Seile geführt, die einenends mit einer Aufzugskabine verbunden sind und die anderenends mit einem Gegengewicht verbunden sind. Der Stator des Elektromotors 1 ist mittels eines Flansches mit dem Motorständer 2 verschraubt. Der Rotor des Elektromotors 1 sitzt auf einem freien Ende einer die Treibscheibe 15 tragenden Welle, die am Lagerbock 5 und am Motorständer 2 gelagert ist. Das freie Wellenende überragt den Motorständer 2. Die durch einen Ausbruch in einer Seilschutzverschalung 3 sichtbare Treibscheibe 15 ist mittels der Welle am Motorständer 2 und am Lagerbock 5 gelagert. Eine Bremse 6 ist im inneren Bereich des Motorständers 2 angeordnet und mit der Verschalung 3 abgedeckt. Je nach Aufbau der Antriebseinheit kann die Bremse 6 auch im inneren Bereich des Lagerbockes 5 angeordnet sein. Fig. 1 shows the ready assembled drive unit, consisting essentially of a motor 1, serving as a bearing plate motor stand 2, serving as a bearing plate bearing block 5, a traction sheave 15 and a machine frame 7 with counter-roller carrier 9. About the traction sheave 15 ropes, not shown, are performed connected at one end to an elevator car and the other ends connected to a counterweight. The stator of the electric motor 1 is screwed by means of a flange to the motor stand 2. The rotor of the electric motor 1 is seated on a free end of a shaft carrying the traction sheave 15, which is mounted on the bearing block 5 and the motor stator 2. The free end of the shaft projects beyond the motor stand 2. The traction sheave 15, which is visible through an outbreak in a cable protection shuttering 3, is mounted on the motor stand 2 and on the bearing block 5 by means of the shaft. A brake 6 is arranged in the inner region of the motor stator 2 and covered with the shuttering 3. Depending on the structure of the drive unit, the brake 6 can also be arranged in the inner region of the bearing block 5.

Der Motorständer 2 und der Lagerbock 5 sind am Maschinenrahmen 7 angeordnet, welcher an seinen Ecken je ein einstellbares Stützelement 8 aufweist. Der Gegenrollenträger 9 ist an der Unterseite des Maschinenrahmens 7 angeordnet. Alle elektrischen Anschlüsse der Antriebseinheit befinden sich in einem Klemmenkasten 10. Die Treibscheibe 15 ist nach dem Öffnen eines Schiebedeckels 47 von aussen zugänglich.The motor stand 2 and the bearing block 5 are arranged on the machine frame 7, which has an adjustable support element 8 at its corners. The counter-roller carrier 9 is arranged on the underside of the machine frame 7. All electrical connections of the drive unit are located in a terminal box 10. The traction sheave 15 is accessible after opening a sliding cover 47 from the outside.

Der konstruktive Aufbau des Notantriebes ist in den Fig. 2a bis 4b näher erläutert, wobei in Fig. 2a und 2b eine zusammengebaute und in Fig. 4a und 4b eine explodierte Darstellung der Baugruppe zu sehen ist. Fig. 3 zeigt Einzelheiten eines an der Treibscheibe 15 angeordneten Zahnkranzes 39 und Fig. 5a und 5b eine Hilfseinrichtung für den Notantrieb.The structural design of the emergency drive is in the Fig. 2a to 4b explained in more detail, wherein in Fig. 2a and 2b an assembled and in Fig. 4a and 4b an exploded view of the assembly can be seen. Fig. 3 shows details of a arranged on the traction sheave 15 sprocket 39 and Fig. 5a and 5b an auxiliary device for the emergency drive.

Im Notbetrieb wird die Treibscheibe 15 über den Zahnkranz 39 angetrieben. Der Zahnkranz 39 ist aus verzahnten Segmenten 39.1 aufgebaut, welche mittels Spannstiften 40, die durch die Löcher 39.2 eingeschlagen sind und in den entsprechenden Bohrungen 15.1 in der Treibscheibe 15 sitzen. Die Schrauben 41, die durch den Zahnkranz 39 durchgesteckt und in die Treibscheibe 15 eingeschraubt sind, halten die Segmente 39.1 in axialer Richtung zusammen. Ein Segment 39.1 ist aus geschichteten, verzahnten Blechsegmenten aufgebaut, die mittels Stanzoder Schneidverfahren billig herstellbar sind. Der Zahnkranz 39 ist aus mehreren, gegenseitig in der Umfangsrichtung versetzten Schichten von verzahnten Segmenten 39.1 aufgebaut, wobei jedes Segment 39.1 mindestens zwei Löcher 39.2 für die in den Löchern 15.1 der Treibscheibe 15 eingepressten Spannstiften 40 aufweisen.In emergency operation, the traction sheave 15 is driven via the ring gear 39. The sprocket 39 is constructed of toothed segments 39.1, which sit by means of clamping pins 40 which are hammered through the holes 39.2 and in the corresponding holes 15.1 in the traction sheave 15. The screws 41, which are inserted through the ring gear 39 and screwed into the traction sheave 15, hold the segments 39.1 together in the axial direction. A segment 39.1 is made up of layered, toothed sheet metal segments which can be produced inexpensively by means of stamping or cutting processes. The sprocket 39 is composed of a plurality of mutually offset in the circumferential direction layers of toothed segments 39.1, each segment 39.1 have at least two holes 39.2 for the pressed in the holes 15.1 of the traction sheave 15 dowels 40.

Der Zahnkranz 39 wird mittels eines auf der Welle eines Hydraulikmotors 43 montierten Ritzels 42 angetrieben. Der Motor 43 wird zu diesem Zweck in eine Aufnahmebohrung 5.1 des Lagerbockes 5 eingesetzt und mit Schrauben befestigt. Die Aufnahmebohrung 5.1 befindet sich im Bereich, der mit einem Abschlussdeckel 45 abgedeckt ist. Anstelle des Hydraulikmotors 43 kann beispielsweise ein netzgespeister oder batteriegespeister Elektromotor vorgesehen sein. Anstelle der direkten Zahnkopplung zwischen dem Zahnkranz 39 und dem Ritzel 42 kann beispielsweise ein motorisch angetriebener Zahnriemen vorgesehen sein, der die Motorkraft auf ein anstelle des Zahnkranzes 39 vorgesehenes Zahnriemenrad überträgt, wobei das Zahnriemenrad wie der Zahnkranz 39 am Umfang der Treibscheibe 15 angeordnet ist.The ring gear 39 is driven by means of a pinion 42 mounted on the shaft of a hydraulic motor 43. The motor 43 is used for this purpose in a receiving bore 5.1 of the bearing block 5 and secured with screws. The receiving bore 5.1 is located in the area covered by a cover 45. Instead of the hydraulic motor 43, for example, a mains-powered or battery-powered electric motor can be provided. Instead of the direct tooth coupling between the ring gear 39 and the pinion 42 may be provided, for example, a motor-driven toothed belt, which transmits the motor power to a toothed ring provided instead of the toothed ring gear 39, the toothed belt wheel as the ring gear 39 is disposed on the circumference of the traction sheave 15.

Der Abschlussdeckel 45 hat eine Öffnung 45.1, welche mit einem in den Führungen 45.2, 48 und 49 geführten Schiebedeckel 47 verschliessbar ist. Vor der Einführung des Hydraulikmotors 43 muss der Schiebedeckel 47 in die offene Stellung gebracht werden. Dabei wird ein Sicherheitsschalter 50, dessen Stössel 50.1 durch das Loch 45.3 im Abschlussdeckel 45 vorsteht, durch die Betätigungskurve 47.1 zurückgedrückt, wobei ein Sicherheitskreis unterbrochen wird, so dass der Betrieb des Elektromotors 1 während des Notbetriebs nicht möglich ist.The end cap 45 has an opening 45.1, which is closable with a guided in the guides 45.2, 48 and 49 sliding cover 47. Before the introduction of the hydraulic motor 43, the sliding cover 47 must be brought into the open position. In this case, a safety switch 50, the plunger 50.1 projecting through the hole 45.3 in the end cover 45, pushed back by the actuation curve 47.1, wherein a safety circuit is interrupted, so that the operation of the electric motor 1 during emergency operation is not possible.

Fig. 5a und Fig. 5b zeigen ein fahrbares Hydraulikaggregat, welches aus einem Wagen 51 mit einem Träger 51.1 für den Hydraulikmotor 43, einem Träger 51.2 zur Aufnahme eines Hydraulikaggregats 52, Räder 51.3, eines Bügels 51.4 zur Plazierung der Hydraulikschläuche sowie zwei weiteren Bügeln 51.5 zum Aufrollen des Elektrokabels für die Speisung eines Pumpenmotors 53 besteht. Fig. 5a and Fig. 5b show a mobile hydraulic unit, which consists of a carriage 51 with a support 51.1 for the hydraulic motor 43, a support 51.2 for receiving a hydraulic unit 52, wheels 51.3, a bracket 51.4 for placing the hydraulic hoses and two other brackets 51.5 for rolling up the electric cable for the power supply a pump motor 53 is made.

Das Hydraulikaggregat 52 besteht aus einer Pumpe mit Pumpenmotor 53, der über einen Motorschalter 54 eingeschaltet werden kann sowie ein Wegeventil 55 für die Steuerung des Hydraulikmotors 43. Weitere Elemente des Hydraulikaggregates 52 sind ein einstellbares Überdruckventil 56 und ein Ölfilter 57. In Maschinenräumen ohne Notstromversorgung kann anstelle des Pumpenmotors 53 eine Handpumpe mit Hydraulikspeicher vorgesehen sein.The hydraulic unit 52 consists of a pump with pump motor 53, which can be turned on via a motor switch 54 and a directional control valve 55 for the control of the hydraulic motor 43. Further elements of the hydraulic unit 52 are an adjustable pressure relief valve 56 and an oil filter 57. In engine rooms without emergency power supply can instead of the pump motor 53, a hand pump with hydraulic accumulator may be provided.

Claims (2)

  1. Emergency drive for a elevator with a drive unit, which moves an elevator car and a counterweight, consisting of motor and traction sheave, over which cables connected with the elevator car and the counterweight are guided, wherein in the case of emergency operation the emergency drive acts on the drive unit and the emergency drive is directly connected with the traction sheave (15) and drives this, and wherein a rim gear (39), which is connected with a pinion (42) of the emergency drive motor (43), is provided at the traction sheave (15), characterised in that the rim gear (39) is formed from several layers, which are mutually displaced in circumferential direction, of toothed segments (39.1), wherein each segment (39.1) is constructed from layered, toothed plate segments.
  2. Emergency drive according to claim1, characterised in that each segment (39.1) has at least two holes (39.2) for receiving dowel pins (40) pressed into holes (15.1) of the traction sheave (15).
EP20030002870 2002-02-18 2003-02-08 Emergency drive for an elevator Expired - Lifetime EP1338545B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20030002870 EP1338545B1 (en) 2002-02-18 2003-02-08 Emergency drive for an elevator

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP02405122 2002-02-18
EP02405122 2002-02-18
EP20030002870 EP1338545B1 (en) 2002-02-18 2003-02-08 Emergency drive for an elevator

Publications (2)

Publication Number Publication Date
EP1338545A1 EP1338545A1 (en) 2003-08-27
EP1338545B1 true EP1338545B1 (en) 2008-10-01

Family

ID=27665009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030002870 Expired - Lifetime EP1338545B1 (en) 2002-02-18 2003-02-08 Emergency drive for an elevator

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EP (1) EP1338545B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2129891B3 (en) * 1971-03-19 1973-12-28 Pointu Jean
FI98724C (en) * 1995-03-24 1997-08-11 Kone Oy Emergency drive device for elevator machinery
DE19725068C2 (en) * 1997-06-12 2001-07-05 Kone Corp Escalator or escalator drive

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Publication number Publication date
EP1338545A1 (en) 2003-08-27

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