EP0706968A2 - Drive unit for a lifting device - Google Patents

Drive unit for a lifting device Download PDF

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Publication number
EP0706968A2
EP0706968A2 EP95111931A EP95111931A EP0706968A2 EP 0706968 A2 EP0706968 A2 EP 0706968A2 EP 95111931 A EP95111931 A EP 95111931A EP 95111931 A EP95111931 A EP 95111931A EP 0706968 A2 EP0706968 A2 EP 0706968A2
Authority
EP
European Patent Office
Prior art keywords
drive unit
unit according
brake
shaft
transmission
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.)
Granted
Application number
EP95111931A
Other languages
German (de)
French (fr)
Other versions
EP0706968A3 (en
EP0706968B1 (en
Inventor
Horst Wittur
Hubert W Fischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wittur AG
Original Assignee
Wittur Aufzugteile GmbH and Co
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 Wittur Aufzugteile GmbH and Co filed Critical Wittur Aufzugteile GmbH and Co
Publication of EP0706968A2 publication Critical patent/EP0706968A2/en
Publication of EP0706968A3 publication Critical patent/EP0706968A3/en
Application granted granted Critical
Publication of EP0706968B1 publication Critical patent/EP0706968B1/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
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • 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
    • B66B11/0438—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with a gearless driving, e.g. integrated sheave, drum or winch in the stator or rotor of the cage motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/12—Driving gear incorporating electric motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • B66D1/22—Planetary or differential gearings, i.e. with planet gears having movable axes of rotation
    • 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
    • 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
    • B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
    • B66D5/14—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect embodying discs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2186—Gear casings

Definitions

  • the invention relates to a drive unit for a hoist, in particular for an elevator, according to the preamble of claim 1.
  • the drive shaft which is guided through the brake housing consists of three parts which are connected to one another by two couplings.
  • One of the clutches is formed by a brake disc carrier on which a brake disc is integrally formed.
  • the tripartite shaft with the two shaft couplings, one of which is also provided with a length compensation increase the overall length of the drive unit, increase the mass of the rotating parts and promote the occurrence of vibrations.
  • the invention has for its object to design a drive unit of the type mentioned in such a way that it has a short overall length with a simple construction and generates low inertia forces.
  • the motor shaft and the transmission shaft are formed by a one-piece, continuous shaft and the brake body is fixed on the shaft within the brake housing, the total length of the drive unit can be significantly shortened, which is a major advantage in the generally cramped installation conditions for elevator drives. In addition, the construction and assembly costs are reduced.
  • the motor and the transmission are preferably cantilevered to the brake housing on both sides. They thus form a structural unit that can be preassembled and no longer requires alignment work when installing the hoist, but must be fixed as the only component on the foundation. Depending on the design of the gear unit, it can also be flanged to the brake housing on the output side and connected to the motor on the drive side.
  • the brake can be designed as a drum or disc brake or, if necessary, can also be constructed according to other construction principles.
  • the parts absorbing the braking forces are fixed either on the brake housing or on a separate carrier.
  • the brake body for example the brake drum or brake disc, is preferably attached to the through shaft by means of a flange or a conical coupling, so that partial or complete replacement is possible without undue effort. Accessibility is further improved in that the brake housing has openings through which the brake is accessible.
  • a planetary gear is used as the gear, it is advantageously flanged to the side of the brake housing facing away from the motor.
  • the outer jacket of the planetary gear can then be designed as a rope pulley projecting into the elevator shaft for the ropes of an elevator, which results in a further saving in overall length.
  • the type of flange mounting of the gearbox according to the invention advantageously also enables the use of other types of gear such as e.g. Helical gear, backlash-free precision gear and combination gear.
  • a space-saving version of a pulse generator can be mounted on the drive shaft, which can be used for controlled drives. This pulse generator can be integrated into the space of the motor housing or can be formed by the motor drive shaft bearing.
  • Fig. 1 shows schematically a drive unit for an elevator with the basic components gear 1, brake 2 and motor 3, which are arranged coaxially.
  • the gear 1 is a planetary gear trained and carries on its outer jacket a traction sheave, not shown, for the ropes of an elevator.
  • a brake housing 8 with a brake housing is designated, which is integrally connected to a rigid base plate 11.
  • the base plate 11 continues until under the motor 3 and is anchored on a foundation, not shown.
  • the fixed part of the planetary gear 1 is flanged to the left side of the brake housing 8 in FIG. 1.
  • the housing of the motor 3 is attached to the right side of the brake housing 8.
  • the rotor 5 of the motor 3, the brake body of the brake 2 and the input part of the planetary gear 1 sit on a common shaft 6 which runs as a continuous shaft through the entire drive unit.
  • a handwheel 7 for emergency operation can be placed on the free end of the shaft 6 on the motor side.
  • a pulse generator 13 is mounted on the free end of the shaft 6, which is supported on the inside of the motor housing cover.
  • the brake body which is designed as a drum or disk, is fixed on the shaft 6 by means of a known conical connection, as is shown schematically in FIGS. 4a and 4b.
  • the free end of the shaft 6 can be received in a support bearing 14, which can itself be designed as a pulse generator.
  • the support bearing or the free end of the shaft can be covered by a removable cap 15. This cap can be provided with a safety contact in order to ensure that the drive unit cannot be actuated when the handwheel is attached.
  • FIGS. 1 and 2 show a drum brake, also with levers 9 and a cylinder 10.
  • the lever 9 absorbing the braking force is fixed on the brake housing 8.
  • they can also be mounted on the foundation independently of the brake housing 8, so that the braking forces absorbed from the moving masses are not derived via the brake housing 8. In this case it is possible to assemble and install the brake unit on its own carrier as a complete unit.
  • a gear with a different, known design can also be used. It is also possible to flange a structural unit designed as a geared motor to one side of the brake housing and to suspend a sheave for the supporting cables on the end of the shaft 6 projecting on the other side.
  • the main advantages of the drive unit according to the invention are the significantly shortened design due to the omission of the coupling and the arrangement of a continuous shaft with the bearing of the brake on the shaft in the vicinity of the gearbox or cable pulley bearing, as a result of which the centrifugal masses are reduced and better absorbed can and what the engine support bearing provided in the usual designs can be omitted.
  • the brake housing can have lateral openings through which the brake can be monitored and accessed, so that wear can be observed and an easy replacement of brake parts is possible.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Braking Arrangements (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Jib Cranes (AREA)
  • Arrangement Of Transmissions (AREA)
  • Control And Safety Of Cranes (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The drive has an electric motor (3), a drive transmission (1), a disc or drum brake (2) and a brake housing (8) acting as the stator, fitted to the end face of the motor and/or the transmission housing. The brake is secured to a common motor and transmission shaft (6) within the brake housing. The transmission pref. uses a planetary gearing, with a handwheel (7) attached to the end of the common shaft on the outside of the motor for emergency manual operation.

Description

Die Erfindung betrifft eine Antriebseinheit für ein Hebezeug, insbesondere für einen Aufzug, nach dem Oberbegriff des Anpruchs 1.The invention relates to a drive unit for a hoist, in particular for an elevator, according to the preamble of claim 1.

Bei einer bekannten Antriebseinheit dieser Art (WO 89/11436) besteht die durch das Bremsgehäuse hindurchgeführte Antriebswelle aus drei Teilen, die durch zwei Kupplungen miteinander verbunden sind. Eine der Kupplungen wird dabei von einem Bremsscheibenträger gebildet, an den eine Bremsscheibe einstückig angeformt ist. Die dreigeteilte Welle mit den beiden Wellenkupplungen, von denen eine zusätzlich mit einem Längenausgleich versehen ist, vergrößern die Baulänge der Antriebseinheit, erhöhen die Masse der umlaufenden Teile und begünstigen das Auftreten von Schwingungen.In a known drive unit of this type (WO 89/11436), the drive shaft which is guided through the brake housing consists of three parts which are connected to one another by two couplings. One of the clutches is formed by a brake disc carrier on which a brake disc is integrally formed. The tripartite shaft with the two shaft couplings, one of which is also provided with a length compensation, increase the overall length of the drive unit, increase the mass of the rotating parts and promote the occurrence of vibrations.

Der Erfindung liegt die Aufgabe zugrunde, eine Antriebseinheit der eingangs genannten Art so auszugestalten, daß sie bei einfachem Aufbau eine geringe Baulänge aufweist und niedrige Massekräfte erzeugt.The invention has for its object to design a drive unit of the type mentioned in such a way that it has a short overall length with a simple construction and generates low inertia forces.

Die Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst, wobei die weiteren Ansprüche zusätzliche vorteilhafte Ausgestaltungen zum Gegenstand haben.The object is achieved by the features of claim 1, the further claims relating to additional advantageous embodiments.

Dadurch, daß die Motorwelle und die Getriebewelle von einer einteiligen, durchgehenden Welle gebildet werden und der Bremskörper innerhalb des Bremsgehäuses auf der Welle festgelegt ist, kann die Gesamtlänge der Antriebseinheit deutlich verkürzt werden, worin bei den generell beengten Einbauverhältnissen für Aufzugantriebe ein wesentlicher Vorteil liegt. Zusätzlich werden der Aufbau und der Montageaufwand verringert.The fact that the motor shaft and the transmission shaft are formed by a one-piece, continuous shaft and the brake body is fixed on the shaft within the brake housing, the total length of the drive unit can be significantly shortened, which is a major advantage in the generally cramped installation conditions for elevator drives. In addition, the construction and assembly costs are reduced.

Vorzugsweise sind der Motor und das Getriebe freitragend zu beiden Seiten an das Bremsgehäuse angeflanscht. Sie bilden damit eine Baueinheit, die vormontiert werden kann und keine Ausrichtarbeiten mehr beim Einbau des Hebezeuges erfordert, sondern als einziges Bauteil an dem Fundament festgelegt werden muß. Je nach Bauart des Getriebes kann dieses auch abtriebsseitig an das Bremsgehäuse angeflanscht und an der Antriebsseite mit dem Motor verbunden sein.The motor and the transmission are preferably cantilevered to the brake housing on both sides. They thus form a structural unit that can be preassembled and no longer requires alignment work when installing the hoist, but must be fixed as the only component on the foundation. Depending on the design of the gear unit, it can also be flanged to the brake housing on the output side and connected to the motor on the drive side.

Die Bremse kann als Trommel- oder Scheibenbremse ausgebildet oder, falls erforderlich, auch nach anderen Bauprinzipien aufgebaut sein. Die die Bremskräfte aufnehmenden Teile werden dabei entweder an dem Bremsgehäuse oder an einem gesonderten Träger festgelegt.The brake can be designed as a drum or disc brake or, if necessary, can also be constructed according to other construction principles. The parts absorbing the braking forces are fixed either on the brake housing or on a separate carrier.

Der Bremskörper, z.B. die Bremstrommel oder Bremssscheibe, wird vorzugsweise mittels eines Flansches oder einer Kegelkupplung an der durchgehenden Welle befestigt, so daß eine teilweise oder vollständige Auswechslung ohne übermäßigen Aufwand möglich ist. Die Zugänglichkeit wird weiterhin dadurch verbessert, daß das Bremsgehäuse Öffnungen aufweist, durch welche die Bremse zugänglich ist.The brake body, for example the brake drum or brake disc, is preferably attached to the through shaft by means of a flange or a conical coupling, so that partial or complete replacement is possible without undue effort. Accessibility is further improved in that the brake housing has openings through which the brake is accessible.

Wenn als Getriebe ein Planetengetriebe eingesetzt wird, wird dieses in vorteilhafter Weise an der dem Motor abgewandten Seite des Bremsgehäuses angeflanscht. Der Außenmantel des Planetengetriebes kann dann als in den Aufzugschacht vorkragende Seilscheibe für die Seile eines Aufzuges ausgebildet sein, wodurch sich eine weitere Einsparung an Baulänge ergibt.If a planetary gear is used as the gear, it is advantageously flanged to the side of the brake housing facing away from the motor. The outer jacket of the planetary gear can then be designed as a rope pulley projecting into the elevator shaft for the ropes of an elevator, which results in a further saving in overall length.

Die Art der erfindungsgemäßigen Anflanschung des Gertiebes ermöglicht in vorteilhafter Weise auch den Einsatz anderer Getriebearten wie z.B. Stirnradgetriebe, spielfreie Präzisionsgetriebe und Kombinationsgetriebe. Gleichzeitig kann auf der Antriebswelle eine platzsparende Ausführung eines Impulsgebers gelagert sein, der für geregelte Antriebe genutzt werden kann. Dieser Impulsgeber kann in den Raum des Motorgehäuses integriert werden oder von dem Motorantriebswellenlager gebildet sein.The type of flange mounting of the gearbox according to the invention advantageously also enables the use of other types of gear such as e.g. Helical gear, backlash-free precision gear and combination gear. At the same time, a space-saving version of a pulse generator can be mounted on the drive shaft, which can be used for controlled drives. This pulse generator can be integrated into the space of the motor housing or can be formed by the motor drive shaft bearing.

Nachfolgend wird die Erfindung anhand von bevorzugten Ausführungsbeispielen näher erläutert. In der zugehörigen Zeichnung zeigen:

Fig. 1
einen senkrechten Teillängsschnitt durch eine erfindungsgemäße Antriebseinheit;
Fig. 2
einen Querschnitt des Bremsgehäuses mit einer als Trommelbremse ausgebildeten Bremse;
Fig. 3a und 3b
eine mit einer Scheibenbremse versehene Antriebseinheit im Längs- und im Querschnitt, und
Fig. 4a und 4b
eine Kegelkupplung zum Befestigen des Bremskörpers an der Welle im Längs- und im Querschnitt.
The invention is explained in more detail below on the basis of preferred exemplary embodiments. In the accompanying drawing:
Fig. 1
a vertical partial longitudinal section through a drive unit according to the invention;
Fig. 2
a cross section of the brake housing with a brake designed as a drum brake;
3a and 3b
a drive unit provided with a disc brake in longitudinal and cross-section, and
4a and 4b
a cone coupling for attaching the brake body to the shaft in longitudinal and cross-section.

Fig. 1 zeigt schematisch eine Antriebseinheit für einen Aufzug mit den Grundbauteilen Getriebe 1, Bremse 2 und Motor 3, die gleichachsig angeordnet sind. Das Getriebe 1 ist als Planetengetriebe ausgebildet und trägt auf seinem Außenmantel eine nicht dargestellte Treibscheibe für die Seile eines Aufzuges.Fig. 1 shows schematically a drive unit for an elevator with the basic components gear 1, brake 2 and motor 3, which are arranged coaxially. The gear 1 is a planetary gear trained and carries on its outer jacket a traction sheave, not shown, for the ropes of an elevator.

Mit 8 ist ein Bremsgehäuse bezeichnet, das einstückig mit einer starren Grundplatte 11 verbunden ist. Die Grundplatte 11 setzt sich bis unter den Motor 3 fort und ist auf einem nicht dargestellten Fundament verankert.8 with a brake housing is designated, which is integrally connected to a rigid base plate 11. The base plate 11 continues until under the motor 3 and is anchored on a foundation, not shown.

Das Planetengetriebe 1 ist mit seinem feststehenden Teil an die in Fig. 1 linke Seite des Bremsgehäuses 8 angeflanscht. In gleicher Weise ist das Gehäuse des Motors 3 an der rechten Seite des Bremsgehäuses 8 befestigt.The fixed part of the planetary gear 1 is flanged to the left side of the brake housing 8 in FIG. 1. In the same way, the housing of the motor 3 is attached to the right side of the brake housing 8.

Der Rotor 5 des Motors 3, der Bremskörper der Bremse 2 und der Eingangsteil des Planetengetriebes 1 sitzen auf einer gemeinsamen Welle 6, die als durchgehende Welle durch die gesamte Antriebseinheit verläuft. Auf das freie Ende der Welle 6 an der Motorseite kann ein Handrad 7 zur Notbetätigung aufgesetzt werden. Ferner ist auf dem freien Ende der Welle 6 ein Impulsgeber 13 gelagert, der an der Innenseite des Motorgehäusedeckels angestützt ist. Der als Trommel oder Scheibe ausgebildete Bremskörper ist mittels einer bekannten Konusverbindung auf der Welle 6 festgelegt, wie es in Fig. 4a und 4b schematisch dargestellt ist.The rotor 5 of the motor 3, the brake body of the brake 2 and the input part of the planetary gear 1 sit on a common shaft 6 which runs as a continuous shaft through the entire drive unit. A handwheel 7 for emergency operation can be placed on the free end of the shaft 6 on the motor side. Furthermore, a pulse generator 13 is mounted on the free end of the shaft 6, which is supported on the inside of the motor housing cover. The brake body, which is designed as a drum or disk, is fixed on the shaft 6 by means of a known conical connection, as is shown schematically in FIGS. 4a and 4b.

Wie aus Fig. 3a ersichtlich, kann das freie Ende der Welle 6 in einem Stützlager 14 aufgenommen werden, welches selbst als Impulsgeber ausgebildet sein kann. Das Stützlager bzw. das freie Ende der Welle können durch eine abnehmbare Kappe 15 abgedeckt sein. Diese Kappe kann mit einem Sicherheitskontakt versehen sein, um beim Aufstecken des Handrades sicherzustellen, das die Antriebseinheit nicht betätigt werden kann.As can be seen from Fig. 3a, the free end of the shaft 6 can be received in a support bearing 14, which can itself be designed as a pulse generator. The support bearing or the free end of the shaft can be covered by a removable cap 15. This cap can be provided with a safety contact in order to ensure that the drive unit cannot be actuated when the handwheel is attached.

Für die Bremse können unterschiedliche Bauarten eingesetzt werden. In Fig. 1 und 2 ist eine Trommelbremse gezeigt, bei der über Hebel 9 und einen Bremszylinder 10 Bremsbacken 12 gegen den Außenumfang des Bremskörpers gedrückt werden. Demgegenüber zeigen die Fig. 3a und 3b eine Scheibenbremse, ebenfalls mit Hebeln 9 und einem Zylinder 10.Different types can be used for the brake. 1 and 2, a drum brake is shown in which 10 brake shoes 12 via lever 9 and a brake cylinder be pressed against the outer circumference of the brake body. In contrast, FIGS. 3a and 3b show a disc brake, also with levers 9 and a cylinder 10.

In beiden Fällen sind die die Bremskraft aufnehmenden Hebel 9 an dem Bremsgehäuse 8 festgelegt. Sie können jedoch auch unabhängig von dem Bremsgehäuse 8 an dem Fundament gelagert sein, so daß die aus den bewegten Massen aufgenommenen Bremskräfte nicht über das Bremsgehäuse 8 abgeleitet werden. In diesem Fall ist es möglich, die Bremseinheit auf einem eigenen Träger als komplette Einheit zu montieren und einzubauen.In both cases, the lever 9 absorbing the braking force is fixed on the brake housing 8. However, they can also be mounted on the foundation independently of the brake housing 8, so that the braking forces absorbed from the moving masses are not derived via the brake housing 8. In this case it is possible to assemble and install the brake unit on its own carrier as a complete unit.

Anstelle des bei der beispielsweisen Ausführungsform vorgesehenen Planetengetriebes kann auch ein Getriebe mit einer anderen, bekannten Bauform eingesetzt werden. Dabei ist es auch möglich, eine als Getriebemotor ausgebildete Baueinheit an die eine Seite des Bremsgehäuses anzuflanschen und auf das an der anderen Seite vorragende Ende der Welle 6 eine Seilscheibe für die Tragseile auszusetzen.Instead of the planetary gear provided in the exemplary embodiment, a gear with a different, known design can also be used. It is also possible to flange a structural unit designed as a geared motor to one side of the brake housing and to suspend a sheave for the supporting cables on the end of the shaft 6 projecting on the other side.

Die wesentlichen Vorteile der erfindungsgemäßen Antriebseinheit bestehen in der wesentlich verkürzten Bauform durch Wegfall der Kupplung und durch die Anordnung einer durchgehenden Welle mit der Lagerung der Bremse auf der Welle in der Nähe des Getriebe- bzw. Seilscheibenlagers, wodurch die Schwungmassen verringert werden und besser aufgenommen werden können und wodurch das bei den üblichen Konstruktionen vorgesehene Motorstützlager entfallen kann. Das Bremsgehäuse kann seitliche Öffnungen aufweisen, durch welche die Bremse überwachbar und zugänglich ist, so daß der Verschleiß beobachtet werden kann und ein leichter Austausch von Bremsteilen möglich ist.The main advantages of the drive unit according to the invention are the significantly shortened design due to the omission of the coupling and the arrangement of a continuous shaft with the bearing of the brake on the shaft in the vicinity of the gearbox or cable pulley bearing, as a result of which the centrifugal masses are reduced and better absorbed can and what the engine support bearing provided in the usual designs can be omitted. The brake housing can have lateral openings through which the brake can be monitored and accessed, so that wear can be observed and an easy replacement of brake parts is possible.

Claims (19)

Antriebseinheit für ein Hebezeug, insbesondere für einen Aufzug, bestehend aus einem Motor (3), einem Getriebe (1), einer Bremse (2) und einem als Ständer dienenden Bremsgehäuse (8), an das an einer Stirnfläche der Motor und/oder das Getriebe angeflanscht ist, dadurch gekennzeichnet, daß eine durchgehende Welle (6) sowohl die Motorwelle als auch die Getriebewelle bildet, und daß der Bremskörper (2) innerhalb des Bremsgehäuses (8) auf der Welle (6) festgelegt ist.Drive unit for a hoist, in particular for an elevator, consisting of a motor (3), a transmission (1), a brake (2) and a brake housing (8) serving as a stand, to which the motor and / or the Gearbox is flanged, characterized in that a continuous shaft (6) forms both the motor shaft and the transmission shaft, and that the brake body (2) is fixed on the shaft (6) within the brake housing (8). Antriebseinheit nach Anspruch 1, dadurch gekennzeichnet, daß der Motor (3) und/oder das Getriebe (1) freitragend an das Bremsgehäuse (8) angeflanscht sind.Drive unit according to claim 1, characterized in that the motor (3) and / or the gear (1) are flanged to the brake housing (8) in a self-supporting manner. Antriebseinheit nach Anspruch 1 oder 2, dadurch gekenzeichnet, daß die Bremse (2) als Trommelbremse ausgebildet ist.Drive unit according to claim 1 or 2, characterized in that the brake (2) is designed as a drum brake. Antriebseinheit nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Bremse (2) als Scheibenbremse ausgebildet ist.Drive unit according to claim 1 or 2, characterized in that the brake (2) is designed as a disc brake. Antriebseinheit nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die die Bremskräfte aufnehmenden Teile an dem Bremsgehäuse (8) festgelegt sind.Drive unit according to one of claims 1 to 4, characterized in that the parts absorbing the braking forces are fixed on the brake housing (8). Antriebseinheit nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die die Bremskräfte aufnehmenden Teile an einem gesonderten Träger festgelegt sind.Drive unit according to one of claims 1 to 4, characterized in that the parts absorbing the braking forces are fixed on a separate carrier. Antriebseinheit nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Bremskörper an einem an der Welle (6) ausgebildeten Flansch befestigt ist.Drive unit according to one of claims 1 to 6, characterized in that the brake body is attached to a flange formed on the shaft (6). Antriebseinheit nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Bremskörper mittels einer Kegelkupplung an der Welle (6) festgelegt ist.Drive unit according to one of claims 1 to 6, characterized in that the brake body is fixed to the shaft (6) by means of a conical coupling. Antriebseinheit nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das Bremsgehäuse (8) Öffnungen aufweist, durch welche die Bremse (2) zugänglich ist.Drive unit according to one of claims 1 to 8, characterized in that the brake housing (8) has openings through which the brake (2) is accessible. Antriebseinheit nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß das Bremsgehäuse (8) durch eine bis unter den freitragend angeflanschten Motor (3) ragende Grundplatte (11) verlängert ist.Drive unit according to one of claims 1 to 9, characterized in that the brake housing (8) is extended by a base plate (11) projecting below the cantilevered motor (3). Antriebseinheit nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß das Getriebe (1) als Planetengetriebe ausgebildet ist.Drive unit according to one of claims 1 to 10 , characterized in that the gear (1) is designed as a planetary gear. Antriebseinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Getriebe (1) als Stirnradgetriebe ausgebildet ist.Drive unit according to one of the preceding claims, characterized in that the gear (1) is designed as a spur gear. Antriebseinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Getriebe (1) als spielfreies Präzisionsgetriebe, insbesondere der Art Cyclo- oder Harmonic-Drive-Getriebe (eingetragene Warenzeichen) ausgebildet ist.Drive unit according to one of the preceding claims, characterized in that the transmission (1) is designed as a backlash-free precision transmission, in particular of the cyclo or harmonic drive type (registered trademark). Antriebseinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Getriebe (1) als Kombinationsgetriebe nach den Getriebebauarten gemäß der Ansprüche 11, 12 und/oder 13 ausgebildet ist.Drive unit according to one of the preceding claims, characterized in that the transmission (1) is designed as a combination transmission according to the transmission types according to claims 11, 12 and / or 13. Antriebseinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Außenmantel des Getriebes zur Aufnahme der Tragmittel, insbesondere einer Seilscheibe für die Seile eines Aufzuges ausgebildet ist.Drive unit according to one of the preceding claims, characterized in that the outer casing of the transmission for receiving the suspension means, in particular one Pulley is designed for the ropes of an elevator. Antriebseinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Getriebe (1) an seiner Abtriebsseite eine Welle aufweist, die zur Aufnahme der Tragmittel, insbesondere einer Seilscheibe für die Seile eines Aufzuges ausgebildet ist.Drive unit according to one of the preceding claims, characterized in that the transmission (1) has on its output side a shaft which is designed to receive the suspension means, in particular a rope pulley for the ropes of an elevator. Antriebseinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Getriebe (1) an seiner Abtriebsseite eine Öffnung zur Aufnahme einer Zapfwelle aufweist.Drive unit according to one of the preceding claims, characterized in that the transmission (1) has an opening on its driven side for receiving a PTO shaft. Antriebseinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß auf der Antriebswelle (6) ein Impulsgeber (13, 14) gelagert ist.Drive unit according to one of the preceding claims, characterized in that a pulse generator (13, 14) is mounted on the drive shaft (6). Antriebseinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Stützlager (14) der Antriebswelle (6) als Impulsgeber ausgebildet ist.Drive unit according to one of the preceding claims, characterized in that the support bearing (14) of the drive shaft (6) is designed as a pulse generator.
EP95111931A 1994-10-10 1995-07-28 Drive unit for a lifting device Expired - Lifetime EP0706968B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9416306U DE9416306U1 (en) 1994-10-10 1994-10-10 Drive unit for a hoist
DE9416306U 1994-10-10

Publications (3)

Publication Number Publication Date
EP0706968A2 true EP0706968A2 (en) 1996-04-17
EP0706968A3 EP0706968A3 (en) 1997-01-02
EP0706968B1 EP0706968B1 (en) 2000-05-10

Family

ID=6914707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95111931A Expired - Lifetime EP0706968B1 (en) 1994-10-10 1995-07-28 Drive unit for a lifting device

Country Status (11)

Country Link
US (1) US6146303A (en)
EP (1) EP0706968B1 (en)
JP (1) JPH08239195A (en)
CN (1) CN1053425C (en)
AT (1) ATE192722T1 (en)
CA (1) CA2158614C (en)
DE (2) DE9416306U1 (en)
ES (1) ES2148382T3 (en)
GR (1) GR3033752T3 (en)
PL (1) PL181698B1 (en)
PT (1) PT706968E (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996033124A1 (en) * 1995-04-21 1996-10-24 Wittur Aufzugteile Gmbh & Co. Method of controlling and monitoring the operation of a lift installation, and a roller bearing for use in the method
DE19724920A1 (en) * 1997-06-12 1998-12-17 Wittur Aufzugteile Gmbh & Co Drive unit for a hoist
DE19746394A1 (en) * 1997-10-21 1999-04-22 Wittur Aufzugteile Gmbh & Co Drive for lifting device, especially elevator
WO2001087755A1 (en) * 2000-05-19 2001-11-22 Inventio Ag Actuator for the emergency operation of a gearless driving machine of an elevator
EP1411620A1 (en) 2002-10-18 2004-04-21 Moteurs Leroy-Somer Machine having an electric motor and a pulley, in particular for an elevator

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0834463A1 (en) * 1996-10-07 1998-04-08 Inventio Ag Compact drive for elevator
DE19647063A1 (en) * 1996-11-14 1998-05-20 Zahnradfabrik Friedrichshafen Drive for a stationary conveyor
CA2436731C (en) * 2003-08-06 2012-04-03 Peter Shaw Linear lift drive device
EP1982950A1 (en) * 2007-04-17 2008-10-22 Dynatech, Dynamics & Technology, S. L. Braking system for lifts
JP5390988B2 (en) * 2009-08-19 2014-01-15 日本オーチス・エレベータ株式会社 Elevator equipment
CN101804937B (en) * 2010-04-16 2012-12-12 浙江西子富沃德电机有限公司 Cargo lift tractor
JP5861252B2 (en) * 2010-12-09 2016-02-16 株式会社明電舎 Elevator hoist emergency rescue device
DE102012009168A1 (en) * 2012-05-08 2013-11-14 Audi Ag Damping device with a rotary damper
JP5868259B2 (en) * 2012-05-15 2016-02-24 三菱電機株式会社 Electromagnetic brake device for elevator hoisting machine
FR3034586B1 (en) * 2015-04-02 2017-03-24 Valeo Equip Electr Moteur ROTATING ELECTRICAL MACHINE WITH CLEARANCE TO FACILITATE MOUNTING WITH AN APPARATUS
CN104860171B (en) * 2015-05-18 2017-05-24 沈阳蓝光驱动技术有限公司 Permanent magnet synchronous traction machine convenient to assemble and maintain
US10618775B2 (en) 2016-11-18 2020-04-14 Otis Elevator Company Retrofitting an elevator machine with primary and secondary braking
US10737908B2 (en) 2016-11-22 2020-08-11 Otis Elevator Company Method and kit for retrofitting elevator machines with thrust bearing, and retrofitted elevator machine
DE202017105348U1 (en) * 2017-09-05 2018-12-07 Liebherr-Components Biberach Gmbh The freefall winch
CN111042091B (en) * 2020-01-07 2021-04-16 浙江任我行教育科技有限公司 Water surface garbage cleaning device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989011436A1 (en) 1988-05-28 1989-11-30 Zahnradfabrik Friedrichshafen Ag Drive for lifting equipment

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901478A (en) * 1969-05-12 1975-08-26 Earl A Peterson Crane incorporating vertical motion apparatus
US3967706A (en) * 1974-05-22 1976-07-06 Northwest Engineering Company Material handling apparatus with improved fail-safe brake system
US3995722A (en) * 1975-02-18 1976-12-07 Abex Corporation Fail-safe disc brake having a slack adjuster mechanism
US4116308A (en) * 1976-11-01 1978-09-26 Square D Company Electromagnetically operated friction brake
US4161126A (en) * 1977-02-09 1979-07-17 Caterpillar Tractor Co. Winch construction having axially shiftable face gear
DE3112090A1 (en) * 1981-03-27 1983-02-03 Heinz 2000 Hamburg Buchmeier Lift gearing with an electric motor
SU1049400A1 (en) * 1982-05-20 1983-10-23 Государственный проектно-конструкторский институт технологии монтажа промышленного оборудования Variable lifting capacity lift
US4588057A (en) * 1983-04-25 1986-05-13 Kobe Steel Ltd. Loaded hydraulically actuatable piston and controls system therefor
FI82434C (en) * 1988-07-07 1991-03-11 Kone Oy Elevator machinery.
DE3840281C2 (en) * 1988-11-30 1997-12-04 Zahnradfabrik Friedrichshafen Hoist drive
US5141085A (en) * 1990-11-05 1992-08-25 Harnischfeger Corporation Hoist load brake
US5435209A (en) * 1992-06-26 1995-07-25 Wittur Aufzugteile Gmbh & Co. Drive unit for a hoisting apparatus, in particular for a passenger or freight elevator
US5909783A (en) * 1997-05-28 1999-06-08 Quality Steel Products, Inc. Motorized scaffold hoisting apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989011436A1 (en) 1988-05-28 1989-11-30 Zahnradfabrik Friedrichshafen Ag Drive for lifting equipment

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996033124A1 (en) * 1995-04-21 1996-10-24 Wittur Aufzugteile Gmbh & Co. Method of controlling and monitoring the operation of a lift installation, and a roller bearing for use in the method
US6102165A (en) * 1995-04-21 2000-08-15 Wittur Ag Antifriction bearing with signal generator and method for using same
DE19724920A1 (en) * 1997-06-12 1998-12-17 Wittur Aufzugteile Gmbh & Co Drive unit for a hoist
US6107714A (en) * 1997-06-12 2000-08-22 Wittur Aufzugteile Gmbh & Co. Drive unit for a hoist
CN1091746C (en) * 1997-06-12 2002-10-02 维托公开股份有限公司 Drive unit for hoist
DE19746394A1 (en) * 1997-10-21 1999-04-22 Wittur Aufzugteile Gmbh & Co Drive for lifting device, especially elevator
WO2001087755A1 (en) * 2000-05-19 2001-11-22 Inventio Ag Actuator for the emergency operation of a gearless driving machine of an elevator
EP1411620A1 (en) 2002-10-18 2004-04-21 Moteurs Leroy-Somer Machine having an electric motor and a pulley, in particular for an elevator

Also Published As

Publication number Publication date
EP0706968A3 (en) 1997-01-02
PL310613A1 (en) 1996-04-15
GR3033752T3 (en) 2000-10-31
CA2158614C (en) 2003-01-07
DE9416306U1 (en) 1995-01-19
PT706968E (en) 2000-10-31
EP0706968B1 (en) 2000-05-10
JPH08239195A (en) 1996-09-17
CN1053425C (en) 2000-06-14
PL181698B1 (en) 2001-09-28
US6146303A (en) 2000-11-14
ATE192722T1 (en) 2000-05-15
CN1128730A (en) 1996-08-14
DE59508305D1 (en) 2000-06-15
ES2148382T3 (en) 2000-10-16
CA2158614A1 (en) 1996-04-11

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