EP1475346B1 - Lifting device - Google Patents

Lifting device Download PDF

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Publication number
EP1475346B1
EP1475346B1 EP04009490A EP04009490A EP1475346B1 EP 1475346 B1 EP1475346 B1 EP 1475346B1 EP 04009490 A EP04009490 A EP 04009490A EP 04009490 A EP04009490 A EP 04009490A EP 1475346 B1 EP1475346 B1 EP 1475346B1
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EP
European Patent Office
Prior art keywords
coupling
lifting appliance
appliance according
cable drum
drive flange
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
EP04009490A
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German (de)
French (fr)
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EP1475346A3 (en
EP1475346A2 (en
Inventor
Klaus-Jürgen Winter
Heinrich Flaig
Thomas Kohlenberg
Michael Dammer
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.)
Demag Cranes and Components GmbH
Original Assignee
Demag Cranes and Components GmbH
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Publication date
Application filed by Demag Cranes and Components GmbH filed Critical Demag Cranes and Components GmbH
Publication of EP1475346A2 publication Critical patent/EP1475346A2/en
Publication of EP1475346A3 publication Critical patent/EP1475346A3/en
Application granted granted Critical
Publication of EP1475346B1 publication Critical patent/EP1475346B1/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

Definitions

  • the invention relates to a hoist with a consisting of a motor and a gear drive unit, driven by the drive unit drive shaft with it festlegbarem drive flange and connectable to the drive flange cable drum, the torque of the drive shaft via a coupling to the cable drum is transferable.
  • Hoists designed as cables have a substantially cylindrical cable drum which is rotatably mounted in a frame.
  • the cable drum is driven by means of a gear motor, wherein the output shaft of the transmission is rotatably coupled to the cable drum.
  • a gear motor wherein the output shaft of the transmission is rotatably coupled to the cable drum.
  • the clutch is designed as a toothed coupling, which comprises a rotationally fixed to the output shaft connected pinion and meshing with this pinion, fixed to the drive flange of the cable drum sprocket.
  • TGL coupling in which a rotationally fixed on the output shaft fixed flange engages over one or more driving pins in recesses of an end wall of the cable drum.
  • the DE 298 16 675 U1 discloses a coupling for hoists for transmitting the torque of a driven gear shaft to a cable drum, arranged with a arranged on one end of the transmission shaft clutch hub and with an inner and outer cover, arranged on the clutch hub clutch housing.
  • the clutch housing and the clutch hub are positively connected to one another via circular gears formed on the clutch housing and on the clutch hub, and barrel rollers for transmitting power are arranged in the bores formed from the two circular gears.
  • the present invention seeks to provide a hoist of the type mentioned above with a clutch that ensures the misalignment compensating coupling of the cable drum with the drive shaft with a simple and space-saving design.
  • the coupling As between the components to be coupled together form-fitting and thus torque transmitting to be arranged coupling element, it is possible to design the coupling simple and cost-effective. In addition, it is possible to arrange the coupling at different locations, namely between the drive flange and the cable drum and / or between the drive shaft and the drive flange.
  • the drive shaft and the drive flange must be rotationally connected to each other in order to transmit the torque of the drive shaft via the coupling to the cable drum can.
  • the torque transmission of the components to be coupled together is carried out according to a practical embodiment of the invention, characterized in that the coupling element on both sides radially outwardly and inwardly facing driving cams, which engage for torque transmission respectively into corresponding recesses of the two adjacent, mutually engageable components.
  • the coupling forming at least one coupling element is constructed of individual coupling segments.
  • the construction of individual coupling segments makes it possible in a simple way to compensate for manufacturing tolerances.
  • the coupling segments preferably have for the extension between the drive flange and the cable drum on the driving cam surface extending contact surfaces forming sections.
  • the individual coupling segments extend around the driving cams on both sides, i. H. in the circumferential direction of the drive flange.
  • the individual coupling segments extend in a circular arc shape between the drive flange and the cable drum.
  • individual coupling segments can be coupled to one another via molded-on projections and correspondingly formed receptacles.
  • the projections and receptacles may be formed so that they allow either a latching coupling or even a purely positive coupling of the individual coupling segments together.
  • the coupling element is finally made up of individual spaced apart arranged coupling segments consisting.
  • each coupling segment has radially outwardly pointing driving cams on both sides, for torque transmission respectively into corresponding recesses of the two adjacent, mutually engageable components intervention.
  • the driving cams are arranged directly opposite each other radially outwardly and inwardly pointing to the coupling segments.
  • the driving cams at least partially made of a harder material than the rest of the coupling element and preferably include a shearing resistant core.
  • a longitudinal offset between the cable drum and the drive shaft according to the invention compensated by the fact that the recesses for receiving the driving cams of at least one of the mutually coupled components seen in the axial direction of the cable drum are designed to be larger than the corresponding male driving cams.
  • the invention proposes in that at least one contact surface of the coupling element on one of the components to be coupled with one another and / or at least one contact surface of a component to be coupled on the coupling element is convexly convex toward the outside.
  • the at least one coupling element at least partially made of an elastic material, in particular a plastic material.
  • the elasticity of the material allows an additional compensation of possible stresses, whereby additional damping properties can be achieved by an appropriate selection of materials, in order to reduce an impact load from the cable to the drive shaft.
  • FIG. 1 schematically shows the structure of a trained as a cable hoist.
  • the hoist essentially comprises a consisting of an engine and a transmission drive unit 1, driven by the drive unit 1 drive shaft 2 with it festlegbarem drive flange 3 and a rotatably connected to the drive flange 3 cable drum 4, to or from the one only schematically indicated Rope 5 can be wound or unwound.
  • the cable drum 4 is equipped with a so-called “3-point storage” in which the cable drum 4 via two bearings 6a, 6b on the side of the drive shaft 2 and a bearing 7 on the side of the drive shaft 2 opposite drum pin 8 is mounted ,
  • the coupling between the drive flange 3 and the cable drum 4 is arranged, while the drive flange 3 in turn is rotationally connected to the drive shaft 2.
  • the coupling between the drive shaft 2 and the drive flange 3 wherein it is necessary in this case that the drive flange 3 is rotationally connected to the cable drum 4.
  • each coupling segment 9a of the coupling element 9 has on both sides radially outwardly and inwardly pointing driving cam 10, which engage for transmitting the torque in corresponding recesses 11 of the drive flange 3 and the cable drum 4.
  • the driving cams 10 are always arranged directly opposite each other radially outwardly and inwardly facing the coupling segments 9a.
  • the driving cams 10 of the two sides of a coupling segment 9a offset from one another to arrange a coupling segment 9a.
  • the coupling elements 9a extend in a circular arc-shaped manner in the intermediate space between the drive shaft 3 and the cable drum 4, widening circumferentially on both sides about the driving cams 10 in order to form contact surfaces 9b forming sections 9c on which the cable drum 4 rests.
  • FIGS. 5a to 5c Three embodiments for the formation of the coupling elements 9a constructed from individual coupling elements 9.
  • the coupling element 9 is formed quasi one piece, wherein the individual coupling segments 9a are connected to each other via elastic connecting webs 12.
  • each coupling segment 9a integrally formed projections 13 and corresponding to the projections 13 formed receptacles 14, via the individual coupling segments 9a coupled to each other are. While the illustrated embodiment is a latching coupling, the projections 13 and receptacles 14 may also be formed, for example, rectangular, so that they do not latch, but only engage in substantially form-fitting manner.
  • the coupling element 9 of in FIG. 5c illustrated third embodiment consists of individual spaced-apart coupling segments 9a. These three variants shown allow a length compensation between the individual driving cam 10 and the corresponding receptacles 11 and thereby a uniform distribution of the cable tensile force S on the individual coupling segments 9a.
  • the coupling segments 9 a are subjected to a high shear stress in the area of the driving cam 10 transmitting the torque to the other component, it is advantageous to form the driving cams 10 at least partly from a harder material than the rest of the coupling element 9.
  • the driving cams 10 include a break-resistant core 10a, which may be made of metal, for example; the remaining coupling segment 9a is then made of plastic.
  • a break-resistant core 10a which may be made of metal, for example; the remaining coupling segment 9a is then made of plastic.
  • castable metals such as bronze alloys, for the coupling elements 9.
  • the shear resistant core 10a may then be eliminated.
  • shear resistant cores 10a have the task of ensuring a reliable torque transmission between the components coupled to one another in the event of a failure of the driving cams 10, for example by abrasion, until the defective coupling element 9 or coupling segment 9a is replaced.
  • the recesses 11 for receiving the driving cam 10 of the coupling segments 9a as longitudinal grooves 11a and thus formed in the axial direction of the cable drum 4 larger than the corresponding, to be picked driving cam 10th A gap 15 arising on the basis of this design is in particular the illustration FIG. 2a while taking the picture FIG. 4 the design of a Longitudinal groove 11 a shows.
  • FIG. 2a and 2 B show how an angular offset between the longitudinal axes of the cable drum 4 and the drive flange 3 and / or the drive shaft 2 can be compensated.
  • a contact surface 9b of the coupling element 9 on a contact surface 3a of the drive flange 3 to be coupled convex convexly outwardly formed.
  • the convex curvature is formed on the contact surface 3a of the drive flange 3.
  • the corresponding convex curvatures of the contact surfaces are shown in the figures FIG. 2a and 2 B marked with the radii of curvature R.
  • Such a trained coupling is characterized by the fact that it is simple and allows for small size good compensation occurring manufacturing and installation tolerances.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

The lifting gear has the torque of a drive shaft (2) transmitted to a cable drum (4) via a coupling with coupling elements which each consists of individual coupling segments which on both sides have radially inwards and radially outwards pointing driving cams. The coupling segments extend outside the driving cams between the driving flange (3a) on the drive shaft and the cable drum. For the extent between the driving flange and cable drum the coupling segments have sections having locating faces (9b) extending flat from the driving cams.

Description

Die Erfindung betrifft ein Hebezeug mit einer aus einem Motor und einem Getriebe bestehenden Antriebseinheit, einer von der Antriebseinheit antreibbaren Antriebswelle mit daran festlegbarem Antriebsflansch sowie einer mit dem Antriebsflansch verbindbaren Seiltrommel, wobei das Drehmoment der Antriebswelle über eine Kupplung auf die Seiltrommel übertragbar ist.The invention relates to a hoist with a consisting of a motor and a gear drive unit, driven by the drive unit drive shaft with it festlegbarem drive flange and connectable to the drive flange cable drum, the torque of the drive shaft via a coupling to the cable drum is transferable.

Als Seilzüge ausgebildete Hebezeuge weisen eine im wesentlichen zylindrische Seiltrommel auf, die in einem Rahmen drehbar gelagert ist. Die Seiltrommel wird mit Hilfe eines Getriebemotors angetrieben, wobei die Ausgangswelle des Getriebes drehfest mit der Seiltrommel gekuppelt ist. Um Herstellungstoleranzen und Fluchtungsfehler der in der Regel mit einer sogenannten "3-Punkt-Lagerung" ausgestatteten Seiltrommel auszugleichen, die zu Verspannungen im Antrieb führen können, ist es aus der Praxis bekannt, zwischen der Ausgangswelle und der Seiltrommel eine Kupplung anzuordnen, die diese Fluchtungsfehler aufnehmen kann.Hoists designed as cables have a substantially cylindrical cable drum which is rotatably mounted in a frame. The cable drum is driven by means of a gear motor, wherein the output shaft of the transmission is rotatably coupled to the cable drum. In order to compensate for manufacturing tolerances and misalignment of the usually equipped with a so-called "3-point storage" cable drum, which can lead to tension in the drive, it is known in practice to arrange a clutch between the output shaft and the cable drum, this misalignment can record.

Bei der sogenannten Zapex-Kupplung ist die Kupplung als Zahnkupplung ausgebildet, die ein verdrehfest mit der Ausgangswelle verbundenes Ritzel und einen mit diesem Ritzel kämmenden, am Antriebsflansch der Seiltrommel festgelegten Zahnkranz umfasst.In the so-called Zapex coupling, the clutch is designed as a toothed coupling, which comprises a rotationally fixed to the output shaft connected pinion and meshing with this pinion, fixed to the drive flange of the cable drum sprocket.

Weiterhin ist die sogenannte TGL-Kupplung bekannt, bei der ein verdrehfest auf der Ausgangswelle festgelegter Flansch über einen oder mehrere Mitnehmerzapfen in Ausnehmungen einer Stirnwand der Seiltrommel eingreift.Furthermore, the so-called TGL coupling is known, in which a rotationally fixed on the output shaft fixed flange engages over one or more driving pins in recesses of an end wall of the cable drum.

Beide Kupplungsmechanismen haben sich in der Praxis durchaus bewährt, jedoch weisen sie die Nachteile auf, dass sie für Serienhubwerke mit relativ geringen Trommelmomenten unverhältnismäßig teuer sind und darüber hinaus aufgrund ihrer Baugröße bei kleinen Trommeldurchmessern aus Platzgründen nicht verwendet werden können.Both coupling mechanisms have been well proven in practice, but they have the disadvantages that they are disproportionately expensive for Serienhubwerke with relatively low torques and beyond can not be used due to their size in small drum diameters for reasons of space.

Die DE 298 16 675 U1 offenbart eine Kupplung für Hubwerke zur Übertragung des Momentes einer angetriebenen Getriebewelle auf eine Seiltrommel, mit einer auf einem Ende der Getriebewelle angeordneten Kupplungsnabe sowie mit einem über innere und äußere Deckel verschlossenen, auf der Kupplungsnabe angeordneten Kupplungsgehäuse. Das Kupplungsgehäuse und die Kupplungsnabe sind über am Kupplungsgehäuse und auf der Kupplungsnabe ausgebildete Kreisverzahnungen formschlüssig miteinander verbunden und in den aus beiden Kreisverzahnungen gebildeten Bohrungen sind Tonnenrollen zur Kraftübertragung angeordnet.The DE 298 16 675 U1 discloses a coupling for hoists for transmitting the torque of a driven gear shaft to a cable drum, arranged with a arranged on one end of the transmission shaft clutch hub and with an inner and outer cover, arranged on the clutch hub clutch housing. The clutch housing and the clutch hub are positively connected to one another via circular gears formed on the clutch housing and on the clutch hub, and barrel rollers for transmitting power are arranged in the bores formed from the two circular gears.

Davon ausgehend liegt der Erfindung die Aufgabe zugrunde, ein Hebezeug der eingangs genannten Art mit einer Kupplung auszustatten, die bei einfachem und Platz sparendem Aufbau eine die Fluchtungsfehler ausgleichende Kupplung der Seiltrommel mit der Antriebswelle gewährleistet.Based on this, the present invention seeks to provide a hoist of the type mentioned above with a clutch that ensures the misalignment compensating coupling of the cable drum with the drive shaft with a simple and space-saving design.

Die Lösung dieser Aufgabenstellung ist erfindungsgemäß dadurch gekennzeichnet, dass die Kupplungssegmente sich außerhalb der Mitnahmenocken im wesentlichen zwischen den Antriebsflansch und der Seiltrommel erstrecken.The solution to this problem is inventively characterized in that the coupling segments extend outside of the driving cams substantially between the drive flange and the cable drum.

Durch die erfindungsgemäße Ausbildung der Kupplung als zwischen den miteinander zu kuppelnden Bauteilen formschlüssig und somit Drehmoment übertragend anzuordnenden Kupplungselements ist es möglich, die Kupplung einfach aufgebaut und kostengünstig auszugestalten. Darüber hinaus besteht die Möglichkeit, die Kupplung an unterschiedlichen Stellen anzuordnen, nämlich zwischen dem Antriebsflansch und der Seiltrommel und/oder zwischen der Antriebswelle und dem Antriebsflansch.Due to the inventive design of the coupling as between the components to be coupled together form-fitting and thus torque transmitting to be arranged coupling element, it is possible to design the coupling simple and cost-effective. In addition, it is possible to arrange the coupling at different locations, namely between the drive flange and the cable drum and / or between the drive shaft and the drive flange.

Bei der Anordnung des Kupplungselements zwischen dem Antriebsflansch und der Seiltrommel müssen dann die Antriebswelle und der Antriebsflansch verdrehfest miteinander verbunden sein, um das Drehmoment der Antriebswelle über die Kupplung auf die Seiltrommel übertragen zu können.In the arrangement of the coupling element between the drive flange and the cable drum then the drive shaft and the drive flange must be rotationally connected to each other in order to transmit the torque of the drive shaft via the coupling to the cable drum can.

Die Drehmomentübertragung der miteinander zu kuppelnden Bauteile erfolgt gemäß einer praktischen Ausführungsform der Erfindung dadurch, dass das Kupplungselement beidseitig radial nach außen und innen weisende Mitnahmenocken aufweist, die zur Drehmomentübertragung jeweils in entsprechende Ausnehmungen der beiden angrenzenden, miteinander kuppelbaren Bauteile eingreifen.The torque transmission of the components to be coupled together is carried out according to a practical embodiment of the invention, characterized in that the coupling element on both sides radially outwardly and inwardly facing driving cams, which engage for torque transmission respectively into corresponding recesses of the two adjacent, mutually engageable components.

Gemäß der Erfindung ist das die Kupplung bildende mindestens eine Kupplungselement aus einzelnen Kupplungssegmenten bestehend aufgebaut. Der Aufbau aus einzelnen Kupplungssegmenten ermöglicht auf einfache Art und Weise den Ausgleich von Fertigungstoleranzen.According to the invention, the coupling forming at least one coupling element is constructed of individual coupling segments. The construction of individual coupling segments makes it possible in a simple way to compensate for manufacturing tolerances.

Die Kupplungssegmente weisen vorzugsweise für die Erstreckung zwischen dem Antriebsflansch und der Seiltrommel sich von den Mitnahmenocken flächig erstreckende Anlageflächen ausbildende Abschnitte auf. Somit ist es möglich, die Seiltrommel über die Abschnitte der Kupplungssegmente auf dem Antriebsflansch zu lagern.The coupling segments preferably have for the extension between the drive flange and the cable drum on the driving cam surface extending contact surfaces forming sections. Thus, it is possible to store the cable drum over the portions of the coupling segments on the drive flange.

Bei einer Ausführungsform der Erfindung erstrecken sich die einzelnen Kupplungssegmente beidseitig um die Mitnahmenocken herum, d. h. in Umfangsrichtung des Antriebsflansches.In one embodiment of the invention, the individual coupling segments extend around the driving cams on both sides, i. H. in the circumferential direction of the drive flange.

Vorteilhafterweise erstrecken sich die einzelnen Kupplungssegmente kreisbogen-förmig zwischen dem Antriebsflansch und der Seiltrommel.Advantageously, the individual coupling segments extend in a circular arc shape between the drive flange and the cable drum.

Gemäß einer ersten Ausführungsform zur Ausbildung der Kupplungssegmente sind einzelne Kupplungssegmente über elastische Verbindungsstege miteinander verbunden, so dass sich ein aus mehreren Kupplungssegmenten bestehendes einstückiges Kupplungselement ergibt, das besonders einfach und kostengünstig zu fertigen und zu montieren ist.According to a first embodiment for the formation of the coupling segments individual coupling segments are connected to each other via elastic connecting webs, so that there is a one-piece coupling elements consisting of several coupling elements, which is particularly easy and inexpensive to manufacture and assemble.

Mit einer zweiten Ausführungsform zur Ausbildung der Kupplungssegmente wird vorgeschlagen, dass einzelne Kupplungssegmente über angeformte Vorsprünge und entsprechend ausgebildete Aufnahmen miteinander koppelbar sind. Die Vorsprünge und Aufnahmen können dabei so ausgeformt sein, dass sie entweder eine verrastenden Kopplung oder auch nur eine rein formschlüssige Kopplung der einzelnen Kupplungssegmente miteinander ermöglichen.With a second embodiment for the formation of the coupling segments, it is proposed that individual coupling segments can be coupled to one another via molded-on projections and correspondingly formed receptacles. The projections and receptacles may be formed so that they allow either a latching coupling or even a purely positive coupling of the individual coupling segments together.

Bei einer dritten Ausführungsform der Erfindung ist das Kupplungselement schließlich aus einzelnen voneinander beabstandet angeordneten Kupplungssegmenten bestehend aufgebaut.In a third embodiment of the invention, the coupling element is finally made up of individual spaced apart arranged coupling segments consisting.

Um einerseits eine gleichmäßige Übertragung des Drehmoments zu gewährleisten und andererseits die mechanischen Belastungen für die einzelnen Kupplungssegmente zu verringern, wird erfindungsgemäß vorgeschlagen, dass jedes Kupplungssegment beidseitig radial nach außen weisende Mitnahmenocken aufweist, die zur Drehmomentübertragung jeweils in entsprechende Ausnehmungen der beiden angrenzenden, miteinander kuppelbaren Bauteile eingreifen. Vorteilhafterweise sind die Mitnahmenocken dabei einander unmittelbar gegenüberliegend radial nach außen und innen weisend an den Kupplungssegmenten angeordnet.On the one hand to ensure a uniform transmission of torque and on the other hand to reduce the mechanical loads on the individual coupling segments, the invention proposes that each coupling segment has radially outwardly pointing driving cams on both sides, for torque transmission respectively into corresponding recesses of the two adjacent, mutually engageable components intervention. Advantageously, the driving cams are arranged directly opposite each other radially outwardly and inwardly pointing to the coupling segments.

Da die die Drehmomentübertragung im wesentlichen bestimmenden Mitnahmenocken einer starken Scherbelastung ausgesetzt sind, wird gemäß einer bevorzugten Ausführungsform der Erfindung vorgeschlagen, dass die Mitnahmenocken zumindest teilweise aus einem härteren Material als der Rest des Kupplungselements bestehen und vorzugsweise einen abscherbeständigen Kern beinhalten.Since the torque transmission substantially determining driving cams are exposed to a strong shear stress, it is proposed according to a preferred embodiment of the invention that the driving cams at least partially made of a harder material than the rest of the coupling element and preferably include a shearing resistant core.

Ein Längsversatz zwischen der Seiltrommel und der Antriebswelle ist erfindungsgemäß dadurch ausgleichbar, dass die Ausnehmungen zur Aufnahme der Mitnahmenocken zumindest eines der miteinander kuppelbaren Bauteile in Axialrichtung der Seiltrommel gesehen größer ausgebildet sind als die entsprechenden aufzunehmenden Mitnahmenocken.A longitudinal offset between the cable drum and the drive shaft according to the invention compensated by the fact that the recesses for receiving the driving cams of at least one of the mutually coupled components seen in the axial direction of the cable drum are designed to be larger than the corresponding male driving cams.

Um weiterhin einen Winkelversatz zwischen der Längsachse der Seiltrommel und der Antriebswelle ausgleichen zu können, wird erfindungsgemäß vorgeschlagen, dass mindestens eine Anlagefläche des Kupplungselements an einem der miteinander zu kuppelnden Bauteile und/oder mindestens eine Anlagefläche eines zu kuppelnden Bauteils am Kupplungselement konvex nach außen gewölbt ausgebildet ist.In order to further be able to compensate for an angular offset between the longitudinal axis of the cable drum and the drive shaft, the invention proposes in that at least one contact surface of the coupling element on one of the components to be coupled with one another and / or at least one contact surface of a component to be coupled on the coupling element is convexly convex toward the outside.

Schließlich wird mit der Erfindung vorgeschlagen, dass das mindestens eine Kupplungselement zumindest teilweise aus einem elastischen Werkstoff, insbesondere einem Kunststoffmaterial, besteht. Die Elastizität des Werkstoffs ermöglicht einen zusätzlichen Ausgleich möglicher Spannungen, wobei durch eine entsprechende Werkstoffauswahl zusätzliche Dämpfungseigenschaften erzielbar sind, um eine stoßhafte Belastung vom Seilzug auf die Antriebswelle zu verringern.Finally, it is proposed with the invention that the at least one coupling element at least partially made of an elastic material, in particular a plastic material. The elasticity of the material allows an additional compensation of possible stresses, whereby additional damping properties can be achieved by an appropriate selection of materials, in order to reduce an impact load from the cable to the drive shaft.

Weitere Merkmale und Vorteile der Erfindung ergeben sich anhand der zugehörigen Zeichnung, in der verschiedene Ausführungsbeispiele eines erfindungsgemäßen Hebezeugs nur beispielhaft dargestellt sind. In der Zeichnung zeigt:

Figur 1
einen schematischen Längsschnitt durch den Aufbaus eines Hebezeugs;
Figur 2a
einen ausschnittsweisen Längsschnitt durch den Kupplungsbereich eines erfindungsgemäßen Hebezeugs;
Figur 2b
Ansicht des Details IIb gemäß Figur 2a, jedoch eine alternative Ausführungsform darstellend;
Figur 3
einen Schnitt entlang der Schnittlinie III-III gemäß Figur 2;
Figur 4
einen ausschnittsweisen Schnitt entlang der Schnittlinie IV-IV gemäß Figur 2;
Figur 5a
eine Draufsicht auf ein Kupplungselement gemäß einer ersten erfindungsgemäßen Ausführungsform;
Figur 5b
eine Ansicht gemäß Figur 5a, jedoch eine zweite erfindungsgemäße Ausführungsform eines Kupplungselements darstellend;
Figur 5c
eine Ansicht gemäß Figur 5a, jedoch eine dritte erfindungsgemäße Ausführungsform eines Kupplungselements darstellend und
Figur 6
einen Schnitt entlang der Schnittlinie VI-VI gemäß Figur 3.
Further features and advantages of the invention will become apparent from the accompanying drawings, in which various embodiments of a hoist according to the invention are shown by way of example only. In the drawing shows:
FIG. 1
a schematic longitudinal section through the structure of a hoist;
FIG. 2a
a partial longitudinal section through the coupling portion of a hoist according to the invention;
FIG. 2b
View of the detail IIb according to FIG. 2a but illustrating an alternative embodiment;
FIG. 3
a section along the section line III-III according to FIG. 2 ;
FIG. 4
a sectional section along the section line IV-IV according to FIG. 2 ;
FIG. 5a
a plan view of a coupling element according to a first embodiment of the invention;
FIG. 5b
a view according to FIG. 5a but showing a second embodiment of a coupling element according to the invention;
FIG. 5c
a view according to FIG. 5a but a third invention Embodiment of a coupling element performing and
FIG. 6
a section along the section line VI-VI according to FIG. 3 ,

Die Abbildung Figur 1 zeigt schematisch den Aufbau eines als Seilzug ausgebildeten Hebezeugs. Das Hebezeug umfasst im wesentlichen eine aus einem Motor und einem Getriebe bestehende Antriebseinheit 1, eine von der Antriebseinheit 1 antreibbare Antriebswelle 2 mit daran festlegbarem Antriebsflansch 3 sowie eine mit dem Antriebsflansch 3 drehfest verbindbare Seiltrommel 4, auf die bzw. von der ein nur schematisch angedeutetes Seil 5 aufwickelbar beziehungsweise abwickelbar ist.The illustration FIG. 1 schematically shows the structure of a trained as a cable hoist. The hoist essentially comprises a consisting of an engine and a transmission drive unit 1, driven by the drive unit 1 drive shaft 2 with it festlegbarem drive flange 3 and a rotatably connected to the drive flange 3 cable drum 4, to or from the one only schematically indicated Rope 5 can be wound or unwound.

Wie aus der Abbildung Figur 1 ersichtlich, ist die Seiltrommel 4 mit einer sogenannten "3-Punkt-Lagerung" ausgestattet, bei der die Seiltrommel 4 über zwei Lager 6a, 6b auf Seiten der Antriebswelle 2 und über ein Lager 7 auf Seiten eines der Antriebswelle 2 gegenüberliegenden Trommelzapfens 8 gelagert ist.As shown in the picture FIG. 1 it can be seen, the cable drum 4 is equipped with a so-called "3-point storage" in which the cable drum 4 via two bearings 6a, 6b on the side of the drive shaft 2 and a bearing 7 on the side of the drive shaft 2 opposite drum pin 8 is mounted ,

Da in der Praxis diese Lager 6a, 6b und 7 bedingt durch Fertigungs- und Aufstelltoleranzen sowie Verformungen unter Last nicht immer exakt auf einer Linie fluchtend anzuordnen sind, kommt es zu Zwängungsspannungen der gelagerten Bauteile, nämlich in der Antriebswelle 2 und/oder im Antriebsflansch 3 der Seiltrommel 4. Um diese unerwünschten und schlecht berechenbaren Beanspruchungen zu vermeiden, die zusätzlich zur einer als Seilzugkraft S wirkenden Nutzlast auftreten, ist eine Kupplung vorgesehen, die winkelbeweglich und längenausgleichend das Drehmoment der Antriebswelle 2 auf die Seiltrommel 4 überträgt, wie dies in Figur 2a dargestellt ist.Since in practice these bearings 6a, 6b and 7 are not always to be arranged exactly aligned on a line due to manufacturing and installation tolerances and deformations under load, it comes to constrained stresses of the stored components, namely in the drive shaft 2 and / or in the drive flange. 3 To avoid these undesirable and poorly calculable stresses that occur in addition to acting as a cable traction S payload, a clutch is provided, the angular movement and length compensating the torque of the drive shaft 2 transmits to the cable drum 4, as in FIG. 2a is shown.

Bei der in Figur 2a dargestellten Ausführungsform ist die Kupplung zwischen dem Antriebsflansch 3 und der Seiltrommel 4 angeordnet, während der Antriebsflansch 3 seinerseits verdrehfest mit der Antriebswelle 2 verbunden ist. Selbstverständlich ist es auch möglich, die Kupplung zwischen der Antriebswelle 2 und dem Antriebsflansch 3 anzuordnen, wobei es in diesem Fall notwendig ist, dass der Antriebsflansch 3 verdrehfest mit der Seiltrommel 4 verbunden ist. Als dritte Ausgestaltungsform der Kupplung besteht die Möglichkeit, die Drehmomentübertragung sowohl von der Antriebswelle 2 auf den Antriebsflansch 3 als auch vom Antriebsflansch 3 auf die Seiltrommel 4 mittels einer Kupplung zu bewerkstelligen.At the in FIG. 2a embodiment shown, the coupling between the drive flange 3 and the cable drum 4 is arranged, while the drive flange 3 in turn is rotationally connected to the drive shaft 2. Of course, it is also possible to arrange the coupling between the drive shaft 2 and the drive flange 3, wherein it is necessary in this case that the drive flange 3 is rotationally connected to the cable drum 4. As a third embodiment of the coupling, it is possible torque transmission from both the drive shaft 2 on the drive flange 3 and the drive flange 3 to the cable drum 4 by means of a coupling accomplish.

Wie aus der Schnittdarstellung gemäß Figur 3 ersichtlich, besteht die zwischen dem Antriebsflansch 3 und der Seiltrommel 4 angeordnete Kupplung aus einem mehrere einzelne Kupplungssegmente 9a aufweisenden Kupplungselement 9, das im wesentlichen formschlüssig zwischen den beiden miteinander zu kuppelnden Bauteilen 3, 4 angeordnet ist. Der genauere Aufbau des Kupplungselements 9 bzw. der Kupplungssegmente 9a wird nachfolgend zu den Abbildungen Figur 5a bis 5c beschrieben.As from the sectional view according to FIG. 3 it can be seen that there is arranged between the drive flange 3 and the cable drum 4 coupling of a plurality of individual coupling segments 9a having coupling element 9, which is arranged substantially positive fit between the two components to be coupled together 3, 4. The detailed structure of the coupling element 9 and the coupling segments 9a is below the figures FIGS. 5a to 5c described.

Die Abbildung Figur 3 zeigt weiterhin, dass jedes Kupplungssegment 9a des Kupplungselements 9 beidseitig radial nach außen und innen weisende Mitnahmenocken 10 aufweist, die zur Übertragung des Drehmoments in entsprechende Ausnehmungen 11 des Antriebsflansches 3 sowie der Seiltrommel 4 eingreifen. Bei den dargestellten Ausführungsbeispielen sind die Mitnahmenocken 10 immer einander unmittelbar gegenüberliegend radial nach außen und innen weisend an den Kupplungssegmenten 9a angeordnet. Selbstverständlich ist es aber auch möglich, die Mitnahmenocken 10 der beiden Seiten eines Kupplungssegments 9a versetzt zueinander an einem Kupplungssegment 9a anzuordnen.The illustration FIG. 3 shows further that each coupling segment 9a of the coupling element 9 has on both sides radially outwardly and inwardly pointing driving cam 10, which engage for transmitting the torque in corresponding recesses 11 of the drive flange 3 and the cable drum 4. In the illustrated embodiments, the driving cams 10 are always arranged directly opposite each other radially outwardly and inwardly facing the coupling segments 9a. Of course, it is also possible, the driving cams 10 of the two sides of a coupling segment 9a offset from one another to arrange a coupling segment 9a.

Die Kupplungselemente 9a erstrecken sich kreisbogen-förmig in dem Zwischenraum zwischen der Antriebswelle 3 und der Seiltrommel 4, wobei sie sich beidseitig um die Mitnahmenocken 10 herum flächig in Umfangsrichtung verbreitern, um Anlageflächen 9b ausbildende Abschnitte 9c zu bilden, auf denen die Seiltrommel 4 aufliegt.The coupling elements 9a extend in a circular arc-shaped manner in the intermediate space between the drive shaft 3 and the cable drum 4, widening circumferentially on both sides about the driving cams 10 in order to form contact surfaces 9b forming sections 9c on which the cable drum 4 rests.

Die Abbildungen Figur 5a bis 5c zeigen schließlich drei Ausführungsformen zur Ausbildung der aus einzelnen Kupplungssegmenten 9a aufgebauten Kupplungselemente 9. Bei der in Figur 5a dargestellten ersten Ausführungsform ist das Kupplungselement 9 quasi einstückig ausgebildet, wobei die einzelnen Kupplungssegmente 9a über elastische Verbindungsstege 12 miteinander verbunden sind.The pictures FIGS. 5a to 5c Finally, three embodiments for the formation of the coupling elements 9a constructed from individual coupling elements 9. In the in FIG. 5a illustrated first embodiment, the coupling element 9 is formed quasi one piece, wherein the individual coupling segments 9a are connected to each other via elastic connecting webs 12.

Bei der zweiten Ausführungsform gemäß Figur 5b weist jedes Kupplungssegment 9a angeformte Vorsprünge 13 und entsprechend den Vorsprüngen 13 ausgebildete Aufnahmen 14 auf, über die einzelne Kupplungssegmente 9a miteinander koppelbar sind. Während das dargestellte Ausführungsbeispiel eine verrastende Kopplung darstellt, können die Vorsprünge 13 und Aufnahmen 14 auch beispielsweise rechteckig ausgebildet sein, so dass diese nicht verrastend, sondern lediglich im wesentlichen formschlüssig ineinander greifen.In the second embodiment according to FIG. 5b has each coupling segment 9a integrally formed projections 13 and corresponding to the projections 13 formed receptacles 14, via the individual coupling segments 9a coupled to each other are. While the illustrated embodiment is a latching coupling, the projections 13 and receptacles 14 may also be formed, for example, rectangular, so that they do not latch, but only engage in substantially form-fitting manner.

Das Kupplungselement 9 der in Figur 5c dargestellten dritten Ausführungsform besteht aus einzelnen voneinander beabstandet angeordneten Kupplungssegmenten 9a. Diese drei dargestellten Varianten ermöglichen einen Längenausgleich zwischen den einzelnen Mitnahmenocken 10 und den entsprechenden Aufnahmen 11 und dadurch eine gleichmäßige Verteilung der Seilzugkraft S auf die einzelnen Kupplungssegmente 9a.The coupling element 9 of in FIG. 5c illustrated third embodiment consists of individual spaced-apart coupling segments 9a. These three variants shown allow a length compensation between the individual driving cam 10 and the corresponding receptacles 11 and thereby a uniform distribution of the cable tensile force S on the individual coupling segments 9a.

Da die Kupplungssegmente 9a im Bereich der das Drehmoment auf das andere Bauteil übertragenden Mitnahmenocken 10 einer starken Scherbeanspruchung ausgesetzt sind, ist es vorteilhaft, die Mitnahmenocken 10 zumindest teilweise aus einem härteren Material als den Rest des Kupplungselements 9 auszubilden.Since the coupling segments 9 a are subjected to a high shear stress in the area of the driving cam 10 transmitting the torque to the other component, it is advantageous to form the driving cams 10 at least partly from a harder material than the rest of the coupling element 9.

Gemäß Figur 6 beinhalten zu diesem Zweck die Mitnahmenocken 10 einen abscherbeständigen Kern 10a, der beispielsweise aus Metall hergestellt sein kann; das restliche Kupplungssegment 9a ist dann aus Kunststoff hergestellt. Grundsätzlich ist es auch möglich gießbare Metalle, wie beispielsweise Bronzelegierungen, für die Kupplungselemente 9 zu verwenden. Der abscherbeständige Kern 10a kann dann entfallen.According to FIG. 6 For this purpose, the driving cams 10 include a break-resistant core 10a, which may be made of metal, for example; the remaining coupling segment 9a is then made of plastic. In principle, it is also possible to use castable metals, such as bronze alloys, for the coupling elements 9. The shear resistant core 10a may then be eliminated.

Diese abscherbeständigen Kerne 10a haben die Aufgabe, bei einem Versagen der Mitnahmenocken 10 -etwa durch Abrieb- eine sichere Drehmomentübertragung zwischen den miteinander gekuppelten Bauteilen zu gewährleisten, bis das defekte Kupplungselement 9 oder Kupplungssegment 9a ausgetauscht wird.These shear resistant cores 10a have the task of ensuring a reliable torque transmission between the components coupled to one another in the event of a failure of the driving cams 10, for example by abrasion, until the defective coupling element 9 or coupling segment 9a is replaced.

Um einen Längsversatz zwischen der Seiltrommel 4 und dem Antriebsflansch 3 ausgleichen zu können, sind bei dem dargestellten Ausführungsbeispiel die Ausnehmungen 11 zur Aufnahme der Mitnahmenocken 10 der Kupplungssegmente 9a als Längsnuten 11a und somit in Axialrichtung der Seiltrommel 4 größer ausgebildet als die entsprechenden, aufzunehmenden Mitnahmenocken 10. Ein aufgrund dieser Ausbildung entstehender Spalt 15 ist insbesondere der Abbildung Figur 2a zu entnehmen, während die Abbildung Figur 4 die Ausgestaltung einer Längsnut 11 a zeigt.In order to compensate for a longitudinal offset between the cable drum 4 and the drive flange 3, in the illustrated embodiment, the recesses 11 for receiving the driving cam 10 of the coupling segments 9a as longitudinal grooves 11a and thus formed in the axial direction of the cable drum 4 larger than the corresponding, to be picked driving cam 10th A gap 15 arising on the basis of this design is in particular the illustration FIG. 2a while taking the picture FIG. 4 the design of a Longitudinal groove 11 a shows.

Die Abbildungen Figur 2a und 2b zeigen, wie ein Winkelversatz zwischen den Längsachsen der Seiltrommel 4 und dem Antriebsflansch 3 und/oder der Antriebswelle 2 ausgeglichen werden kann. Zu diesem Zweck ist gemäß Figur 2a eine Anlagefläche 9b des Kupplungselements 9 an einer Anlagefläche 3a des zu kuppelnden Antriebsflansches 3 konvex nach außen gewölbt ausgebildet.The pictures FIG. 2a and 2 B show how an angular offset between the longitudinal axes of the cable drum 4 and the drive flange 3 and / or the drive shaft 2 can be compensated. For this purpose is according to FIG. 2a a contact surface 9b of the coupling element 9 on a contact surface 3a of the drive flange 3 to be coupled convex convexly outwardly formed.

Bei der alternativen Ausführungsform gemäß Figur 2b ist die konvexe Wölbung an der Anlagefläche 3a des Antriebsflansches 3 ausgebildet. Die entsprechenden konvexen Wölbungen der Anlageflächen sind in den Abbildungen Figur 2a und 2b mit dem Balligkeitsradien R gekennzeichnet.In the alternative embodiment according to FIG. 2b the convex curvature is formed on the contact surface 3a of the drive flange 3. The corresponding convex curvatures of the contact surfaces are shown in the figures FIG. 2a and 2 B marked with the radii of curvature R.

Eine solchermaßen ausgebildete Kupplung zeichnet sich dadurch aus, dass sie einfach aufgebaut ist und bei kleiner Baugröße einen guten Ausgleich auftretender Fertigungs- und Aufstellungstoleranzen ermöglicht.Such a trained coupling is characterized by the fact that it is simple and allows for small size good compensation occurring manufacturing and installation tolerances.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Antriebseinheitdrive unit
22
Antriebswelledrive shaft
33
Antriebsflanschdrive flange
3a3a
Anlageflächecontact surface
44
Seiltrommelcable drum
4a4a
Anlageflächecontact surface
55
Seilrope
6a6a
Lagercamp
6b6b
Lagercamp
77
Lagercamp
88th
Trommelzapfenbarrel pins
99
Kupplungselementcoupling member
9a9a
Kupplungssegmentcoupling segment
9b9b
Anlageflächecontact surface
9c9c
Abschnittesections
1010
Mitnahmenockendrive cams
10a10a
Kerncore
1111
Ausnehmungrecess
11a11a
Längsnutlongitudinal groove
1212
Verbindungsstegconnecting web
1313
Vorsprunghead Start
1414
Aufnahmeadmission
1515
Spaltgap
RR
Balligkeitsradiuscurvature radius
SS
Seilzugkraftline pull

Claims (15)

  1. Lifting appliance having a drive unit (1) comprising a motor and a gearbox, having a drive shaft (2) which can be driven by the drive unit (1) and which has a drive flange (3) which can be fastened to it, and having a cable drum (4) which can be connected to the drive flange (3), the torque from the drive shaft (2) being able to be transmitted to the cable drum (4) via a coupling, the coupling comprising at least one coupling element (9) which is arranged substantially in positive interengagement between the drive flange (3) and the cable drum (4) and which is constructed to comprise individual coupling sectors (9a) which have, on their two sides, entraining lugs (10) pointing radially inwards and outwards which, to transmit torque, engage in respective corresponding openings (11) in the two adjoining components (3, 4) able to be coupled together, characterised in that, away from the entraining lugs (10), the coupling sectors (9a) extend substantially between the drive flange (3) and the cable drum (4).
  2. Lifting appliance according to claim 1, characterised in that, over their extent between the drive flange (3) and the cable drum (4), the coupling sectors (9a) have portions (9c) which form mating faces (9b) extending over an area from from the entraining lugs (10).
  3. Lifting appliance according to claim 2, characterised in that the cable drum (4) is mounted on the drive flange (3) by means of the coupling sectors (9a).
  4. Lifting appliance according to one of claims 1 to 3, characterised in that, on both sides, the individual coupling sectors (9a) extend around the entraining lugs (10).
  5. Lifting appliance according to one of claims 1 to 4, characterised in that the individual coupling sectors (9a) extend in an arcuate form between the drive flange (3) and the cable drum (4).
  6. Lifting appliance according to one of claims 1 to 5, characterised in that individual coupling sectors (9a) are connected together by elastic connecting webs (12).
  7. Lifting appliance according to one of claims 1 to 5, characterised in that individual coupling sectors (9a) can be coupled together by integrally formed projections (13) and receptacles (14) of a corresponding configuration.
  8. Lifting appliance according to one of claims 1 to 5, characterised in that the coupling element (9) is constructed to comprise individual coupling sectors (9a) which are arranged to be spaced away from one another.
  9. Lifting appliance according to one of claims 1 to 8, characterised in that each coupling sector (9a) has, on its two sides, entraining lugs (10) pointing radially outwards which, to transmit torque, engage in respective corresponding openings (11) in the two adjoining components (3, 4) able to be coupled together.
  10. Lifting appliance according to one of claims 1 to 9, characterised in that the entraining lugs (10) are arranged to point radially inwards and outwards in directly opposite positions.
  11. Lifting appliance according to one of claims 1 to 10, characterised in that the entraining lugs (10) comprise, at least partly, a harder material than the rest of the coupling element (9).
  12. Lifting appliance according to claim 11, characterised in that the entraining lugs (10) contain a shear-resistant core (10a).
  13. Lifting appliance according to one of claims 1 to 12, characterised in that, in at least one of the components (3, 4) able to be coupled together, the openings (11) for receiving the entraining lugs (10) are formed to be larger, looking in the axial direction of the cable drum (4), than the corresponding entraining lugs (10) to be received.
  14. Lifting appliance according to at least one of claims 1 to 13, characterised in that at least one mating face (9b) of the coupling element (9) by which it mates with one of the components (3, 4) to be coupled together and/or at least one mating face (3a, 4a) of a component (3, 4) to be coupled by which it mates with the coupling element is of a convexly outwardly curved form.
  15. Lifting appliance according to at least one of claims 1 to 14, characterised in that at least one coupling element (9) comprises, at least partly, an elastic material and in particular a plastics material.
EP04009490A 2003-05-09 2004-04-22 Lifting device Expired - Lifetime EP1475346B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10320853 2003-05-09
DE10320853A DE10320853B4 (en) 2003-05-09 2003-05-09 hoist

Publications (3)

Publication Number Publication Date
EP1475346A2 EP1475346A2 (en) 2004-11-10
EP1475346A3 EP1475346A3 (en) 2005-12-28
EP1475346B1 true EP1475346B1 (en) 2011-06-22

Family

ID=32981306

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04009490A Expired - Lifetime EP1475346B1 (en) 2003-05-09 2004-04-22 Lifting device

Country Status (6)

Country Link
US (1) US6988715B2 (en)
EP (1) EP1475346B1 (en)
CN (1) CN1550447A (en)
AT (1) ATE513782T1 (en)
DE (1) DE10320853B4 (en)
ES (1) ES2367772T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2916195Y (en) * 2006-01-26 2007-06-27 江门市汉宇电器有限公司 Centrifugal drainage pump
DE102007014505A1 (en) * 2007-03-27 2008-10-02 Demag Cranes & Components Gmbh hoist
KR100831070B1 (en) * 2007-05-09 2008-05-20 한국고벨주식회사 Turning device for hoist
DE102014117561A1 (en) 2014-11-28 2016-06-02 Terex Mhps Gmbh Trolley for a hoist
DE102015102140A1 (en) 2015-02-13 2016-08-18 Terex MHPS IP Management GmbH Arrangement of an electric drive motor, a transmission and a rotary encoder, in particular for a cable pull

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Publication number Priority date Publication date Assignee Title
DE1260887B (en) * 1963-01-18 1968-02-08 Beteiligungs & Patentverw Gmbh Connection structure between a drum, in particular a cable drum, and a shaft
GB1157911A (en) * 1966-08-11 1969-07-09 Gen Electric & English Elect Improvements in or relating to Winder Drums
US3568468A (en) * 1969-06-17 1971-03-09 Harnischfeger Corp Cable drum mounting for a crane
DE2121017A1 (en) * 1971-04-29 1972-11-02 Uher Patent AG. Zug (Schweiz) Manual and / or motorized windlass
GB1418013A (en) * 1972-06-16 1975-12-17 Kohler G Drum winch
US4392635A (en) * 1980-10-16 1983-07-12 Rule Industries, Inc. Rotary power coupling and planetary gear winch
US4483685A (en) * 1983-03-21 1984-11-20 The Singer Company Motor isolator pulley
US4714448A (en) * 1984-12-27 1987-12-22 Valeo Torsional damper device
DE3621187A1 (en) * 1986-06-25 1988-01-21 Hackforth Gmbh & Co Kg ELASTIC SHAFT COUPLING
DE4310770A1 (en) * 1993-04-02 1994-10-06 Krupp Industrietech Motor-operated rope winch
US5474499A (en) * 1993-07-12 1995-12-12 The United States Of America As Represented By The Secretary Of The Navy Flexible drive shaft coupling
FR2714435B1 (en) * 1993-12-23 1996-02-09 Valeo Damping device for compensating for rotational jolts and friction clutch comprising such a device.
US5950778A (en) * 1996-10-31 1999-09-14 Eastman Kodak Company Vibration isolation drive coupling
DE29816675U1 (en) * 1998-09-17 1998-12-17 M. A. T. Malmedie Antriebstechnik GmbH, 42653 Solingen Coupling for hoists
US6315080B1 (en) * 2000-01-24 2001-11-13 Paul J. Doran Converter arrangement for modular motor
DE10225948A1 (en) * 2002-06-11 2003-12-24 Friedr Flender Gmbh A Elastic coupling

Also Published As

Publication number Publication date
DE10320853A1 (en) 2004-12-02
US20040238805A1 (en) 2004-12-02
CN1550447A (en) 2004-12-01
DE10320853B4 (en) 2005-12-29
ES2367772T3 (en) 2011-11-08
EP1475346A3 (en) 2005-12-28
EP1475346A2 (en) 2004-11-10
ATE513782T1 (en) 2011-07-15
US6988715B2 (en) 2006-01-24

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