EP1338550B1 - Drive unit with brake for a lift - Google Patents

Drive unit with brake for a lift Download PDF

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Publication number
EP1338550B1
EP1338550B1 EP20030002866 EP03002866A EP1338550B1 EP 1338550 B1 EP1338550 B1 EP 1338550B1 EP 20030002866 EP20030002866 EP 20030002866 EP 03002866 A EP03002866 A EP 03002866A EP 1338550 B1 EP1338550 B1 EP 1338550B1
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EP
European Patent Office
Prior art keywords
brake
motor
motor stand
traction sheave
bearing
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
EP20030002866
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German (de)
French (fr)
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EP1338550A1 (en
Inventor
Andrzej Cholinski
Heinrich Küttel
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Inventio AG
Original Assignee
Inventio AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Priority to EP20030002866 priority Critical patent/EP1338550B1/en
Publication of EP1338550A1 publication Critical patent/EP1338550A1/en
Application granted granted Critical
Publication of EP1338550B1 publication Critical patent/EP1338550B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/24—Operating devices
    • B66D5/26—Operating devices pneumatic or hydraulic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
    • B66D5/08—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying blocks or shoes

Definitions

  • the invention relates to a drive unit for an elevator consisting of a motor, serving as a bearing plate motor stand, wherein the motor is arranged on the motor stand, serving as a bearing block bearing block, a bearing frame bearing machine frame, arranged between the bearing plates traction sheave and one on the traction sheave acting brake.
  • 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.
  • a second clamping set creates a firm connection between the main shaft and the rotor hub.
  • a disadvantage of the known devices is that the brake is arranged outboard.
  • the brake parts can easily become dirty or mechanically damaged.
  • the invention aims to remedy this situation.
  • the invention as characterized in claim 1 solves the problem to avoid the disadvantages of the known device and to provide an elevator drive with brake, which operates reliably in each case.
  • the advantages achieved by the invention are to be seen essentially in the fact that a drive unit with a short shaft and thus a small overall length of the drive unit can be realized. It is also advantageous that the brake release cylinder and supply lines are arranged separately from the brake drum. If the brake release cylinder can be actuated hydraulically, the active braking surfaces can not become oily in the event of leakage or line breakage. Brake readiness remains guaranteed.
  • 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 Gegenrollenanbau 9.
  • the stator of the electric motor 1 is by means of a flange with the Motor stand 2 screwed.
  • the rotor of the electric motor 1 is seated on a free end of a shaft carrying the traction sheave 15, not shown, 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 Schmidtrollenanbau 9 is arranged on the underside of the machine frame 7. All electrical connections of the drive unit are located in a terminal box 10th
  • Fig. 2a to 2d The structural design of the brake 6 and the motor stator 2 is in the Fig. 2a to 2d explained in more detail, wherein in Fig. 2a an assembled and in Fig. 2b and 2c an exploded view of the assembly can be seen.
  • the motor stand 2 consists of an approximately rectangular Plate 2.1, which forms the flat, box-shaped motor stand 2 together with two vertical walls 2.3 and one horizontal wall 2.4 and 2.5.
  • the plate 2.1 has in the middle a bearing seat 2.2 for the motor-side bearing of the shaft and some openings 2.6 for the passage of the cooling air for cooling the motor 1.
  • the holes 2.7 in the lower part of the motor stand 2 are provided for receiving brake pin 11.
  • the lateral walls 2.3 have in the upper part openings 2.8 for coil springs 16 and openings 2.9 for pull rods 24 of the hydraulic cylinder 23.
  • ribs 2.10 on the outside of the wall 2.3 together with the inside arranged ribs 2.11 serve the structural reinforcement and allow the absorption of forces, which when opening the brake 6 act through the hydraulic cylinder 23 on the ribs 2.10.
  • a U-shaped wall 2.12 on the inside of the wall 2.4 forms together with reinforcing ribs 2.13 a rigid structure, which takes over the spring forces of the threaded rods 19 inserted through holes 2.14.
  • Lifting eyes 2.15 are used to suspend the motor stand 2 or the assembled drive unit Fig. 1 ,
  • the brake 6 consists of two brake levers 12 which are mounted on the brake pin 11 and which act on the drum 15.1 of the traction sheave 15 via the brake shoes 14 mounted on bolts 13.
  • the braking force is generated by springs 16 which press at one end on the brake lever 12 and at the other end via pressure plates 17 and nuts 18 transmit the force to the threaded rods 19.
  • the threaded rods 19 are through the holes 12.1 in the brake levers 12 and the holes 2.14 in the motor stand. 2 put through and fixed by means of crown nuts 21 with split pin.
  • the spring force can be introduced via the pivot bearing 22 on the inside of the wall 2.12 of the motor stator 2.
  • the holes 2.14 and 12.1 are correspondingly larger than the threaded rod 19 and thus allow a required for releasing the brake 6 rotational movement of the brake lever 12 about the axis of the bolt 11.
  • the spherical bearings 22 provide a vertical introduction of the forces on the wall of the motor stand 2.12. 2 ,
  • a slidably mounted on the brake lever 12 angle 20 limits the freedom of movement of the brake shoe 14 down and prevents the open brake 6, the contact of the brake shoes 14 with the brake drum 15.1 of the traction sheave 15th
  • Fig. 2d shows details of the spring force of the springs 16 counteracting hydraulic cylinder 23.
  • the hydraulic cylinder 23 supplied pressure medium causes the displacement of the hollow piston 23.1 after Outside.
  • the pull rod 24 has at both ends depending on a groove 24.1, in each of which two half rings 25 are used.
  • a retaining ring 26 holds the half-rings 25 in position and is itself fixed with the shaft-locking ring 27 on the pull rod 24.
  • the axial spherical plain bearings 28 and the correspondingly large-sized holes 12.2 in the Brake levers 12 ensure that the pull rod 24 is loaded only axially in each operating condition.
  • the shims 29 allow the adjustment of the Lsymmetricweges the brake lever 12th

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Braking Arrangements (AREA)

Description

Die Erfindung betrifft eine Antriebseinheit für einen Aufzug bestehend aus einem Motor, einem als Lagerschild dienenden Motorständer, wobei der Motor am Motorständer angeordnet ist, einem als Lagerschild dienenden Lagerbock, einem die Lagerschilder tragendem Maschinenrahmen, einer zwischen den Lagerschildern angeordneten Treibscheibe und einer auf die Treibscheibe einwirkenden Bremse.The invention relates to a drive unit for an elevator consisting of a motor, serving as a bearing plate motor stand, wherein the motor is arranged on the motor stand, serving as a bearing block bearing block, a bearing frame bearing machine frame, arranged between the bearing plates traction sheave and one on the traction sheave acting brake.

Aus der Patentschrift EP 0 468 168 B1 ist eine getriebelose Antriebseinheit 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.From the patent EP 0 468 168 B1 a gearless drive unit for elevators has become known 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, a second clamping set creates a firm connection between the main shaft and the rotor hub.

Aus der EP 1 156 008 ist eine getriebelose Antriebseinheit gemäß dem Oberbegriff des Anspruchs 1, mit einem Motor bestehend aus Stator und Rotor, der eine Treibscheibe antreibt, bekannt geworden. Über die Treibscheibe und eine Umlenkrolle sind Seile geführt, die eine Aufzugskabine und ein Gegengewicht tragen und antreiben. Die Treibscheibe wird von einer Motorwelle getragen, die einenends an einem und anderenends an einem Lagerbock gelagert ist. Motor, Lagerschild, Lagerbock und Umlenkrolle werden von einer Maschinenkonsole getragen.From the EP 1 156 008 is a gearless drive unit according to the preamble of claim 1, with a motor consisting of stator and rotor, which drives a traction sheave known. Ropes are guided over the traction sheave and a pulley, which carry and drive an elevator car and a counterweight. The traction sheave is carried by a motor shaft, which is mounted at one end at one and the other end to a bearing block. Engine, bearing plate, bracket and pulley are supported by a machine console.

Ein Nachteil der bekannten Einrichtungen liegt darin, dass die Bremse aussenliegend angeordnet ist. Die Bremsteile können leicht verschmutzen oder mechanisch beschädigt werden.A disadvantage of the known devices is that the brake is arranged outboard. The brake parts can easily become dirty or mechanically damaged.

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 Aufzugsantrieb mit Bremse zu schaffen, der in jedem Fall zuverlässig arbeitet.The invention aims to remedy this situation. The invention as characterized in claim 1 solves the problem to avoid the disadvantages of the known device and to provide an elevator drive with brake, which operates reliably in each case.

Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, dass eine Antriebseinheit mit kurzer Welle und somit eine kleine Baulänge der Antriebseinheit realisierbar ist. Weiter vorteilhaft ist, dass der Bremslüftzylinder und Zuleitungen von der Bremstrommel getrennt angeordnet sind. Falls der Bremslüftzylinder hydraulisch betätigbar ist, können im Fall von Undichtheit oder Leitungsbruch die aktiven Bremsflächen nicht verölen. Die Bremsbereitschaft bleibt weiterhin gewährleistet.The advantages achieved by the invention are to be seen essentially in the fact that a drive unit with a short shaft and thus a small overall length of the drive unit can be realized. It is also advantageous that the brake release cylinder and supply lines are arranged separately from the brake drum. If the brake release cylinder can be actuated hydraulically, the active braking surfaces can not become oily in the event of leakage or line breakage. Brake readiness remains guaranteed.

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 erfindungsgemässe Antriebseinheit,
  • Fig. 2a
    einen Motorständer mit integrierter Bremse und Treibscheibe,
  • Fig. 2b und 2c
    eine explodierte Darstellung des Motorständers und
  • Fig. 2d
    Einzelheiten zum Lüften der Bremse
Show it:
  • Fig. 1
    a drive unit according to the invention,
  • Fig. 2a
    a motor stand with integrated brake and traction sheave,
  • Fig. 2b and 2c
    an exploded view of the engine stand and
  • Fig. 2d
    Details for releasing the brake

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 Gegenrollenanbau 9. 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, nicht dargestellten 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 Gegenrollenanbau 9. The stator of the electric motor 1 is by means of a flange with the Motor stand 2 screwed. The rotor of the electric motor 1 is seated on a free end of a shaft carrying the traction sheave 15, not shown, 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 Gegenrollenanbau 9 ist an der Unterseite des Maschinenrahmens 7 angeordnet. Alle elektrischen Anschlüsse der Antriebseinheit befinden sich in einem Klemmenkasten 10.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 Gegenrollenanbau 9 is arranged on the underside of the machine frame 7. All electrical connections of the drive unit are located in a terminal box 10th

Der konstruktive Aufbau der Bremse 6 und des Motorständers 2 ist in den Fig. 2a bis 2d näher erläutert, wobei in Fig. 2a eine zusammengebaute und in Fig. 2b und 2c eine explodierte Darstellung der Baugruppe zu sehen ist.The structural design of the brake 6 and the motor stator 2 is in the Fig. 2a to 2d explained in more detail, wherein in Fig. 2a an assembled and in Fig. 2b and 2c an exploded view of the assembly can be seen.

Der Motorständer 2 besteht aus einer annähernd rechteckigen Platte 2.1, welche zusammen mit zwei senkrechten Wandungen 2.3 sowie je einer waagrechten Wandung 2.4 und 2.5 den flachen, kastenförmigen Motorständer 2 bildet. Die Platte 2.1 weist in der Mitte einen Lagersitz 2.2 für das motorseitige Lager der Welle sowie einige Öffnungen 2.6 für den Durchtritt der Kühlluft zur Kühlung des Motors 1 auf. Die Bohrungen 2.7 im unteren Bereich des Motorständers 2 sind für die Aufnahme von Bremsbolzen 11 vorgesehen.The motor stand 2 consists of an approximately rectangular Plate 2.1, which forms the flat, box-shaped motor stand 2 together with two vertical walls 2.3 and one horizontal wall 2.4 and 2.5. The plate 2.1 has in the middle a bearing seat 2.2 for the motor-side bearing of the shaft and some openings 2.6 for the passage of the cooling air for cooling the motor 1. The holes 2.7 in the lower part of the motor stand 2 are provided for receiving brake pin 11.

Die seitlichen Wandungen 2.3 haben im oberen Bereich Durchbrüche 2.8 für Spiralfedern 16 und Durchbrüche 2.9 für Zugstangen 24 der Hydraulikzylinder 23. Rippen 2.10 an der Aussenseite der Wandung 2.3 zusammen mit innenseitig angeordneten Rippen 2.11 dienen der Strukturversteifung und erlauben die Aufnahme der Kräfte, welche beim Öffnen der Bremse 6 durch die Hydraulikzylinder 23 auf die Rippen 2.10 einwirken.The lateral walls 2.3 have in the upper part openings 2.8 for coil springs 16 and openings 2.9 for pull rods 24 of the hydraulic cylinder 23. ribs 2.10 on the outside of the wall 2.3 together with the inside arranged ribs 2.11 serve the structural reinforcement and allow the absorption of forces, which when opening the brake 6 act through the hydraulic cylinder 23 on the ribs 2.10.

Eine U-förmige Wandung 2.12 auf der Innenseite der Wandung 2.4 bildet zusammen mit Verstärkungsrippen 2.13 eine starre Struktur, welche die Federkräfte von den durch Löcher 2.14 durchgesteckten Gewindestangen 19 übernimmt. Tragösen 2.15 dienen zum Aufhängen des Motorständers 2 oder der zusammengebauten Antriebseinheit nach Fig. 1.A U-shaped wall 2.12 on the inside of the wall 2.4 forms together with reinforcing ribs 2.13 a rigid structure, which takes over the spring forces of the threaded rods 19 inserted through holes 2.14. Lifting eyes 2.15 are used to suspend the motor stand 2 or the assembled drive unit Fig. 1 ,

Die Bremse 6 besteht aus zwei an den Bremsbolzen 11 gelagerten Bremshebeln 12, welche über die an Bolzen 13 gelagerten Bremsschuhe 14 auf die Trommel 15.1 der Treibscheibe 15 wirken. Die Bremskraft wird durch Federn 16 erzeugt, die am einen Ende auf die Bremshebel 12 drücken und am anderen Ende über Druckplatten 17 und Muttern 18 die Kraft auf die Gewindestangen 19 übertragen. Die Gewindestangen 19 sind durch die Löcher 12.1 in den Bremshebeln 12 und die Löcher 2.14 im Motorständer 2 durchgesteckt und mittels Kronenmuttern 21 mit Splint fixiert. Somit kann die Federkraft über die Gelenklager 22 auf die Innenseite der Wandung 2.12 des Motorständers 2 eingeleitet werden.The brake 6 consists of two brake levers 12 which are mounted on the brake pin 11 and which act on the drum 15.1 of the traction sheave 15 via the brake shoes 14 mounted on bolts 13. The braking force is generated by springs 16 which press at one end on the brake lever 12 and at the other end via pressure plates 17 and nuts 18 transmit the force to the threaded rods 19. The threaded rods 19 are through the holes 12.1 in the brake levers 12 and the holes 2.14 in the motor stand. 2 put through and fixed by means of crown nuts 21 with split pin. Thus, the spring force can be introduced via the pivot bearing 22 on the inside of the wall 2.12 of the motor stator 2.

Die Löcher 2.14 und 12.1 sind entsprechend grösser als die Gewindestange 19 und erlauben somit eine zum Lüften der Bremse 6 erforderliche Drehbewegung der Bremshebel 12 um die Achse der Bolzen 11. Die Gelenklager 22 sorgen für eine senkrechte Einleitung der Kräfte auf die Wandung 2.12 des Motorständers 2.The holes 2.14 and 12.1 are correspondingly larger than the threaded rod 19 and thus allow a required for releasing the brake 6 rotational movement of the brake lever 12 about the axis of the bolt 11. The spherical bearings 22 provide a vertical introduction of the forces on the wall of the motor stand 2.12. 2 ,

Ein am Bremshebel 12 verschiebbar befestigter Winkel 20 begrenzt die Bewegungsfreiheit des Bremsschuhes 14 nach unten und verhindert bei offener Bremse 6 den Kontakt der Bremsschuhe 14 mit der Bremstrommel 15.1 der Treibscheibe 15.A slidably mounted on the brake lever 12 angle 20 limits the freedom of movement of the brake shoe 14 down and prevents the open brake 6, the contact of the brake shoes 14 with the brake drum 15.1 of the traction sheave 15th

Fig. 2d zeigt Einzelheiten der der Federkraft der Federn 16 entgegenwirkenden Hydraulikzylinder 23. Die an der Aussenseite der Wandungen 2.3 des Motorständers 2 an den Rippen 2.10 angeordneten Hydraulikzylinder 23 erlauben die Lüftung der Bremse 6. Das dem Hydraulikzylinder 23 zugeführte Druckmittel bewirkt die Verschiebung des hohlen Kolbens 23.1 nach aussen. Über die Zugstange 24 wird die Bewegung des Kolbens 23.1 auf die Bremshebel 12 übertragen. Die Bewegung des Kolbens 23.1 ist durch den Zylinderdeckel 23.2 begrenzt. Die Zugstange 24 weist an beiden Enden je eine Nut 24.1 auf, in welche je zwei Halbringe 25 eingesetzt sind. Ein Haltering 26 hält die Halbringe 25 in Position und ist selber mit dem Wellen-Sicherungsring 27 auf der Zugstange 24 fixiert. Die Axial-Gelenklager 28 und die entsprechend gross dimensionierten Löcher 12.2 in den Bremshebeln 12 sorgen dafür, dass die Zugstange 24 in jedem Betriebszustand nur axial belastet wird. Die Passscheiben 29 erlauben die Einstellung des Lüftweges der Bremshebel 12. Fig. 2d shows details of the spring force of the springs 16 counteracting hydraulic cylinder 23. The arranged on the outside of the walls 2.3 of the motor stand 2 on the ribs 2.10 hydraulic cylinder 23 allow the ventilation of the brake 6. The hydraulic cylinder 23 supplied pressure medium causes the displacement of the hollow piston 23.1 after Outside. About the pull rod 24, the movement of the piston 23.1 is transmitted to the brake lever 12. The movement of the piston 23.1 is limited by the cylinder cover 23.2. The pull rod 24 has at both ends depending on a groove 24.1, in each of which two half rings 25 are used. A retaining ring 26 holds the half-rings 25 in position and is itself fixed with the shaft-locking ring 27 on the pull rod 24. The axial spherical plain bearings 28 and the correspondingly large-sized holes 12.2 in the Brake levers 12 ensure that the pull rod 24 is loaded only axially in each operating condition. The shims 29 allow the adjustment of the Lüftweges the brake lever 12th

Claims (3)

  1. Drive unit for an elevator, consisting of a motor (1), a motor stand (2) serving as bearing plate, wherein the motor (1) is arranged at the motor stand (2), a bearing block (5) serving as bearing plate, a machine frame (7) carrying the bearing plates, a traction sheave(15) arranged between the bearing plates, and a brake (6) acting on the traction sheave (15), characterised in that the brake (6) is integrated in the motor stand (2) and acts at the motor stand side on a brake drum (15.1) of the traction sheave (15).
  2. Drive according to claim 1, characterised in that the motor stand (2) is constructed as a flat box consisting of a plate (2.1) with a bearing seat (2.2) and with lateral walls (2.3, 2.4, 2.5), wherein inwardly disposed walls (2.12) transmit spring forces to the motor stand (2).
  3. Drive unit according to one of claims 1 and 2, characterised in that a spring-loaded shoe brake (6) with brake shoes (14), which transmit the braking force to the brake drum (15.1) of the traction sheave (15), is provided, wherein cylinders (23) arranged outside the motor stand (2) are provided for brake release.
EP20030002866 2002-02-18 2003-02-08 Drive unit with brake for a lift Expired - Lifetime EP1338550B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20030002866 EP1338550B1 (en) 2002-02-18 2003-02-08 Drive unit with brake for a lift

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP02405120 2002-02-18
EP02405120 2002-02-18
EP20030002866 EP1338550B1 (en) 2002-02-18 2003-02-08 Drive unit with brake for a lift

Publications (2)

Publication Number Publication Date
EP1338550A1 EP1338550A1 (en) 2003-08-27
EP1338550B1 true EP1338550B1 (en) 2008-04-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030002866 Expired - Lifetime EP1338550B1 (en) 2002-02-18 2003-02-08 Drive unit with brake for a lift

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EP (1) EP1338550B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4938973B2 (en) * 2003-11-13 2012-05-23 インベンテイオ・アクテイエンゲゼルシヤフト Drive unit without engine frame for elevator
PT1555232T (en) 2004-01-07 2017-03-13 Inventio Ag Method for converting and for mounting a driving gear of an elevator
WO2006094420A1 (en) * 2005-03-08 2006-09-14 Inventio Ag Shoe brake for an elevator drive
CN106494975A (en) * 2016-12-30 2017-03-15 苏州沃诺斯精密机械有限公司 A kind of elevator traction sheave

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH633084A5 (en) * 1978-12-14 1982-11-15 Inventio Ag JAW BRAKE.
JP3537348B2 (en) * 1999-04-05 2004-06-14 三菱電機株式会社 Traction elevator hoist
EP1069068B1 (en) * 1999-07-16 2006-06-07 Inventio Ag Compact drive for an elevator
EP1156008B1 (en) * 2000-05-19 2005-04-06 Inventio Ag Brake arrangement for lift drive

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Publication number Publication date
EP1338550A1 (en) 2003-08-27

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