EP2662278A1 - Pivoting device for a ship propeller pod - Google Patents

Pivoting device for a ship propeller pod Download PDF

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Publication number
EP2662278A1
EP2662278A1 EP13162327.4A EP13162327A EP2662278A1 EP 2662278 A1 EP2662278 A1 EP 2662278A1 EP 13162327 A EP13162327 A EP 13162327A EP 2662278 A1 EP2662278 A1 EP 2662278A1
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EP
European Patent Office
Prior art keywords
ring structure
gondola
bearing
pivoting
linear motor
Prior art date
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Granted
Application number
EP13162327.4A
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German (de)
French (fr)
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EP2662278B1 (en
Inventor
Christian Lehmann
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Publication of EP2662278A1 publication Critical patent/EP2662278A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • B63H2005/1254—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis

Definitions

  • the invention relates to a pivoting device for a ship's propeller nacelle, wherein the pivoting device as such comprises a drive device, via which the ship's propeller nacelle is displaceable in respectively required pivoting positions.
  • Propeller pods are used as so-called pod drives in ocean and inland vessels.
  • the propeller pods are coupled via a pivot bearing with the hull and this typically performed so that they are pivotable about a substantially vertical axis by at least approximately 360 °.
  • An example of a manually pivotable about a pivoting ship propeller nacelle is off US 2,714,866 known.
  • a mechanical drive device is provided for pivoting the respective pod drive.
  • a pivotally mounted ring structure is provided with an inner or outer toothing, in which engages a drive pinion of a servomotor.
  • the invention has for its object to provide a solution by which it is possible to accurately position a ship's propeller nacelle low maintenance.
  • the concept according to the invention also makes it possible to simplify the surrounding construction, as e.g. no attachment for external drives is required. Furthermore, the problem of wear and fatigue on conventional servo motors or the gearing is avoided compared to conventional designs.
  • the pivoting device according to the invention also makes it possible to form the bearing itself as a sealed bearing with grease lubrication. In addition, there is a simplified control and precise positioning feedback.
  • the solution according to the invention is based on a rotary joint with integrated direct electrical drive and a brake using a linear motor connected to the bearing without an intermediate mechanical transmission element.
  • the rotary joint acts as an azimuth drive and at the same time as a storage for so-called pod drives.
  • the inner ring, or even the outer ring can be driven.
  • both permanent magnets and electromagnets can be used.
  • Both air-cooled and water-cooled linear motors can be used.
  • the drive means comprises a coil series comprising a plurality of windings in the circumferential direction along the gondola-side ring structure, wherein a magnetic field is coupled for the application of one to the ring structure for pivoting the gondola-side ring structure by controlled voltage loading of the windings in the gondola-side ring structure attacking magnetic shear force
  • the coil series used for generating the transverse force is preferably realized in the form of a plurality of linear motor segments following in the circumferential direction of the gondola-side ring structure. These linear motor segments preferably protrude via an air gap or another gap of low permeability to a corresponding toothing or profiling of the ring structure.
  • a braking device is further provided for fixing the gondola-side ring structure. This makes it possible to keep the pivoting device deenergized upon reaching a desired position and to maintain the set position safe.
  • the two ring structures are preferably each formed as a bearing rings and are supported against each other by rolling elements.
  • These rolling elements can be designed as balls, wherein on the bearing rings grooves can be formed, which lead to an axially and radially bearing bearing structure.
  • the bearing device it is also possible to form the bearing device as an axial / radial cylindrical roller bearing or in particular as a cross roller bearing.
  • FIG. 1 a pivoting device according to the invention for a propeller pod 1 is shown.
  • This pivoting device comprises a bearing device 2 which, as can be seen from the detailed illustration, comprises a stationary ring structure 3 mounted on the fuselage side and a ring structure 4 which is pivotable relative to this and mounted on the gondola side.
  • This pivoting device is characterized by the fact that this a drive device 5 comprises for pivoting the gondola side mounted ring structure 4 relative to the fuselage-side ring structure 3, wherein the drive means 5 is formed such that for the pivoting of the gondola-side ring structure 4 in this magnetic path, a transverse force is introduced.
  • the drive device 5 is here designed in such a way that the transverse force introduction is effected by a plurality of linear motor segments 5a following in the circumferential direction of the gondola-side ring structure.
  • the pivoting device further comprises a brake device, not shown here, for fixing the gondola-side ring structure 4 relative to the fuselage-side ring structure 3.
  • the braking device can be designed so that it is actuated via the magnetic field of the linear motor segments 5a, so that with appropriate voltage application of the linear motor segments 5a Braking device assumes a release state which allows rotation of the gondola-side ring structure under the action of the magnetic forces generated by the linear motor segments 5a.
  • the linear motor segments 5a are coupled via a ring plate 6 with the fuselage-side ring structure 3.
  • the nacelle-side ring structure 4 is equipped with a plurality of circumferentially following, here not closer to recognizable permanent magnet elements.
  • the two ring structures 3, 4 are each formed in this embodiment as a bearing rings and supported against each other by rolling elements W. These rolling elements W are designed here as balls, and the bearing device thus created acts as an axially and radially supporting ball bearing.
  • the bearing device 2 is designed as a grease-lubricated bearing device, and sealed by means of a sealing device not shown here.
  • FIG. 2 a second embodiment of a pivoting device according to the invention for a propeller nacelle is shown.
  • This pivoting device in turn includes This pivoting device is characterized in that it comprises a drive device 5 for pivoting the gondola-side mounted ring structure 4 relative to the fuselage-side ring structure 3, wherein the Drive device 5 is designed such that for the pivoting of the gondola-side ring structure 4 in this magnetic path, a transverse force is introduced.
  • the drive device 5 comprises a plurality of linear motor segments 5a following in the circumferential direction of the ring structure 4.
  • the linear motor segments 5a are in turn coupled via a ring plate 6 with the fuselage-side ring structure 3.
  • the nacelle-side ring structure 4 is equipped with a plurality of circumferentially subsequent permanent magnet elements 4a.
  • the bearing device 2 is formed in this embodiment as axial / radial cylindrical roller bearings.
  • a ring land 4b is formed at the nacelle-side ring structure 4.
  • This ring land 4b forms an upper and a lower running surface 4c, 4d.
  • the annular web 4b is axially supported via upper and lower cylindrical rollers 2a, 2b and radially in the fuselage-side annular structure 4 via lateral cylindrical rollers 2c.
  • the bearing device 2 is designed as a grease-lubricated bearing device, and sealed by means of a sealing device not shown here.
  • the storage device 2 can be completely filled with a water-repellent grease.
  • a directly driven axial / radial cylindrical roller bearing (Y-style) is provided.
  • the outer ring 3 is and is connected to the hull.
  • the inner ring 4 is connected to the drive spod and rotates.
  • the outer ring 3 is designed as a two-part ring and comprises a base ring 3a which forms the running surfaces 3b, 3c for the cylindrical rollers 2a, 2c.
  • the outer ring 3 comprises a cover ring 3d, which as such forms a running surface 3e for the cylindrical rollers 2b.
  • the pivoting device according to the invention acts as an azimuth drive with a fixed, ie with the hull or connected to the hull structure, connected outer ring 3 and rotating, by means of a plurality of segmental linear motors 5a, driven and connected to the drive nacelle 1 inner ring 4.
  • a plurality of segmental linear motors 5a driven and connected to the drive nacelle 1 inner ring 4.
  • Inner diameter of the inner ring 4 distributed over the circumference magnets attached in conjunction with the liner motors 5a allow a lateral force generation.
  • the linear motors are attached to a cover plate 6.
  • the cover plate 6 in turn is connected to the outer ring 3.
  • FIGS. 1 and 2 consist essentially in that in FIG. 1 is shown a variant in which a pivot bearing is realized in the form of a ball bearing, whereas in FIG. 2 a variant is illustrated, in which the bearing is designed as a cylindrical roller bearing.
  • the magnets are attached to the outer ring 3 and the linear motor segments 5a are then arranged around the outer ring 3 around.
  • the cover plate 6 is then connected to the inner ring 4.
  • the activation of the linear motor segments 5 a via an electronically controlled power electronics is preferably constructed so that the inductance of the individual coils of the linear motor segments can be detected via this and based on this, the instantaneous rotational position of the bearing rings 3, 4 can be determined to each other.
  • FIG. 3 a third variant of a pivoting device according to the invention for a propeller nacelle is shown.
  • This pivoting device in turn comprises a bearing device 2 which has a stationary ring structure 3 mounted on a ship's hull VB and a ring structure 4 which is pivotable relative thereto and is mounted on the gondola side.
  • This pivoting device is also characterized in that it comprises a drive device 5 for pivoting the ring structure 4 mounted on the gondola side with respect to the fuselage-side ring structure 3, wherein the drive device 5 is formed such that for the pivoting of the nacelle-side ring structure 4 in this magnetically carried out a transverse force introduction.
  • the drive device 5 comprises a plurality of linear motor segments 5a following in the circumferential direction of the ring structure 4.
  • the linear motor segments 5a are in turn coupled via a ring plate 6 with the fuselage-side ring structure 3.
  • the nacelle-side ring structure 4 is equipped with a plurality of circumferentially subsequent permanent magnet elements 4a.
  • the bearing device 2 is formed in this embodiment as a cross roller bearing.
  • This cross roller bearing is preferably slightly biased, so that the gondola-side ring structure 4 is rotatably supported on the fuselage-side ring structure 3 via the cross roller set substantially free of play.
  • a thoroughrollenlaufnut 40b is formed which forms in a conventional manner two mutually employed treads 40c, 40d.
  • the cross roller set 20 in turn runs in an outer thoroughrollenlaufnut 30 a.
  • This bearing device 2 is preferably designed as a grease-lubricated bearing device, and sealed by means of a sealing device not shown here.
  • the counter-component acted upon by the magnetic field of the linear motor segments is formed either integrally with the raceway 3 or by magnets attached thereto. It is possible to form these with the arranged along a circular path successively arranged linear motor segments counteracting component as a separate ring structure which is connected directly or with the interposition of other components to the corresponding ring structure and guided by this. Depending on the requirement for the applied torque in particular the axial height of the linear motor segments can be increased.
  • the linear motor segments may also have an L-shaped or U-shaped cross section and thus form an enlarged field exit surface.
  • the linear motor segments are preferably coupled to the stationary structure of the ship, so that no voltage transmission via flexible lines or slip ring systems is required in the moving system. In principle, and in particular in applications that do not require pivoting movements significantly beyond 360 °, it is possible to connect the linear motor segments to the movable system and to determine the mating component detected by the corresponding magnetic field.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The swiveling device comprises a bearing unit (2), which has a hull-mounted stationary ring structure (3) and a gondola-side mounted ring structure (4) pivoted corresponding to the stationary ring structure. A drive unit (5) for pivoting the gondola-side mounted ring structure relative to the hull-side ring structure. The drive unit is formed for pivoting the gondola-side ring structure by applying a radial force magnetically. The transverse force is applied by multiple linear motor segments (5a) in the circumferential direction of the gondola-side ring structure in sequence.

Description

Gebiet der ErfindungField of the invention

Die Erfindung bezieht sich auf eine Schwenkeinrichtung für eine Schiffspropellergondel, wobei die Schwenkeinrichtung als solche eine Antriebseinrichtung umfasst, über welche die Schiffspropellergondel in jeweils geforderte Schwenkstellungen verlagerbar ist.The invention relates to a pivoting device for a ship's propeller nacelle, wherein the pivoting device as such comprises a drive device, via which the ship's propeller nacelle is displaceable in respectively required pivoting positions.

Propellergondeln finden als sog. Podantriebe bei Hochsee- und Binnenschiffen Anwendung. Die Propellergondeln sind dabei über eine Schwenklagerung mit dem Schiffsrumpf gekoppelt und hierbei typischerweise so geführt, dass diese um eine im wesentlichen vertikale Achse um zumindest annähernd 360° schwenkbar sind. Ein Beispiel für eine manuell über eine Schwenkeinrichtung schwenkbare Schiffspropellergondel ist aus US 2,714,866 bekannt.Propeller pods are used as so-called pod drives in ocean and inland vessels. The propeller pods are coupled via a pivot bearing with the hull and this typically performed so that they are pivotable about a substantially vertical axis by at least approximately 360 °. An example of a manually pivotable about a pivoting ship propeller nacelle is off US 2,714,866 known.

Bei größeren Schiffskonstruktionen ist zum Schwenken des jeweiligen Podantriebs eine mechanische Antriebseinrichtung vorgesehen. Hierbei sind Bauformen verbreitet, bei welchen eine schwenkbar gelagerte Ringstruktur mit einer Innen- oder Außenverzahnung versehen ist, in welche ein Antriebsritzel eines Stellmotors eingreift.For larger ship designs, a mechanical drive device is provided for pivoting the respective pod drive. In this case, designs are common, in which a pivotally mounted ring structure is provided with an inner or outer toothing, in which engages a drive pinion of a servomotor.

Aufgabe der ErfindungObject of the invention

Der Erfindung liegt die Aufgabe zugrunde, eine Lösung anzugeben durch welche es möglich wird, eine Schiffspropellergondel wartungsarm präzise zu positionieren.The invention has for its object to provide a solution by which it is possible to accurately position a ship's propeller nacelle low maintenance.

Erfindungsgemäße LösungInventive solution

Diese Aufgabe wird erfindungsgemäß gelöst durch eine Schwenkeinrichtung für eine Schiffspropellergondel mit:

  • einer Lagereinrichtung die eine rumpfseitig montierte stationäre Ringstruktur und eine gegenüber dieser schwenkbare, gondelseitig montierte Ringstruktur umfasst, und
  • einer Antriebseinrichtung zum Schwenken der gondelseitig montierten Ringstruktur gegenüber der rumpfseitigen Ringstruktur,
  • wobei die Antriebseinrichtung derart ausgebildet ist, dass zum Schwenken der gondelseitigen Ringstruktur an dieser gondelseitigen Ringstruktur eine magnetische Querkraft angreift.
This object is achieved by a pivoting device for a ship's propeller nacelle with:
  • a bearing device comprising a hull side mounted stationary ring structure and a pivotable relative to this, the gondola side mounted ring structure, and
  • a drive device for pivoting the gondola-side mounted ring structure with respect to the fuselage-side ring structure,
  • wherein the drive device is designed such that, for pivoting the gondola-side ring structure, a magnetic transverse force acts on this gondola-side ring structure.

Dadurch wird es auf vorteilhafte weise möglich, eine Schwenkeinrichtung für eine Propellergondel zu schaffen die sich durch einen verringerten Montage- und Wartungsaufwand auszeichnet, da nur noch die stationäre Komponente der Lagereinrichtung mit der Umgebungskonstruktion verbunden werden muss und die Montage und Justierung bislang erforderlicher Einzelantriebe entfällt. In weiterhin vorteilhafter Weise ergibt sich gegenüber herkömmlichen Bauformen ein deutlich geringerer Aufwand um die Antriebsenergie zur Verfügung zu stellen. Weiterhin ergibt sich ein Wegfall der Verzahnung und der Schmierung derselben. Durch den Wegfall der Verzahnungsschmierung ergibt sich eine deutlich reduzierte Schmierstoffemission.This makes it possible in an advantageous manner, to provide a pivoting device for a propeller pod which is characterized by a reduced installation and maintenance, since only the stationary component of the bearing device must be connected to the surrounding construction and the installation and adjustment previously required individual drives deleted. In still advantageously advantageous results compared to conventional designs significantly less effort to provide the drive power available. Furthermore, there is a loss of teeth and the lubrication of the same. The omission of the toothed lubrication results in a significantly reduced lubricant emission.

Durch das erfindungsgemäße Konzept wird es auch möglich, die Umgebungskonstruktion zu vereinfachen, da z.B. keine Befestigung für externe Antriebe erforderlich ist. Weiterhin wird gegenüber konventionellen Bauformen auch die Problematik von Verschleiß und Ermüdung an den bislang üblichen Stellmotoren oder der Verzahnung vermieden.The concept according to the invention also makes it possible to simplify the surrounding construction, as e.g. no attachment for external drives is required. Furthermore, the problem of wear and fatigue on conventional servo motors or the gearing is avoided compared to conventional designs.

Die erfindungsgemäße Schwenkeinrichtung erlaubt es auch die Lagerung selbst als abgedichtetes Lager mit Fettschmierung auszubilden. Zudem ergibt sich eine vereinfachte Ansteuerung und eine präzise Stellpositionsrückmeldung.The pivoting device according to the invention also makes it possible to form the bearing itself as a sealed bearing with grease lubrication. In addition, there is a simplified control and precise positioning feedback.

Die erfindungsgemäße Lösung beruht in einer Drehverbindung mit integriertem, elektrischen Direktantrieb und einer Bremse unter Einsatz eines an das Lager angebundenen Linearmotors ohne zwischengeschaltetes mechanisches Übertragungselement. Die Drehverbindung fungiert als Azimutantrieb und zugleich als Lagerung für sog. Podantriebe. Erfindungsgemäß kann der Innenring, oder auch der Außenring angetrieben werden. In dem Linearmotor können sowohl Permanentmagnete als auch Elektromagnete verwendet werden. Es können sowohl luftgekühlte, als auch wassergekühlte Linearmotoren verwendet werden.The solution according to the invention is based on a rotary joint with integrated direct electrical drive and a brake using a linear motor connected to the bearing without an intermediate mechanical transmission element. The rotary joint acts as an azimuth drive and at the same time as a storage for so-called pod drives. According to the invention, the inner ring, or even the outer ring can be driven. In the linear motor both permanent magnets and electromagnets can be used. Both air-cooled and water-cooled linear motors can be used.

Gemäß einer besonders bevorzugten Ausführungsform der Erfindung umfasst die Antriebseinrichtung eine Spulenserie, die mehrere in Umfangsrichtung entlang der gondelseitigen Ringstruktur abfolgende Wicklungen aufweist, wobei zum Schwenken der gondelseitigen Ringstruktur durch gesteuerte Spannungsbeaufschlagung der Wicklungen in die gondelseitige Ringstruktur ein Magnetfeld eingekoppelt wird zur Aufbringung einer an der Ringstruktur angreifenden magnetischen QuerkraftAccording to a particularly preferred embodiment of the invention, the drive means comprises a coil series comprising a plurality of windings in the circumferential direction along the gondola-side ring structure, wherein a magnetic field is coupled for the application of one to the ring structure for pivoting the gondola-side ring structure by controlled voltage loading of the windings in the gondola-side ring structure attacking magnetic shear force

Die zur Querkraftgenerierung herangezogene Spulenserie wird vorzugsweise in Form mehrerer in Umfangsrichtung der gondelseitigen Ringstruktur abfolgende Linearmotorsegmente verwirklicht. Diese Linearmotorsegmente ragen vorzugsweise über einen Luftspalt, oder einen anderweitigen Spalt von geringer Permeabilität an eine entsprechende Zahnung oder Profilierung der Ringstruktur heran.The coil series used for generating the transverse force is preferably realized in the form of a plurality of linear motor segments following in the circumferential direction of the gondola-side ring structure. These linear motor segments preferably protrude via an air gap or another gap of low permeability to a corresponding toothing or profiling of the ring structure.

Gemäß einem besonderen Aspekt der vorliegenden Erfindung ist weiterhin eine Bremseinrichtung vorgesehen ist, zur Festlegung der gondelseitigen Ringstruktur. Hierdurch wird es möglich, die Schwenkeinrichtung bei Erreichen einer Sollposition stromlos zu halten und die eingestellte Position sicher aufrecht zu erhalten.According to a particular aspect of the present invention, a braking device is further provided for fixing the gondola-side ring structure. This makes it possible to keep the pivoting device deenergized upon reaching a desired position and to maintain the set position safe.

Es ist in vorteilhafter Wiese möglich, die Linearmotorsegmente unmittelbar in eine der Ringstrukturen zu integrieren. Alternativ hierzu ist es auch möglich, die Linearmotorsegmente über eine Ringplatte mit der rumpfseitigen Ringstruktur zu koppeln. Eine im Hinblick auf einen hohen elektrischen Wirkungsgrad besonderes vorteilhafte Ausführungsform der Schwenkeinrichtung ist dadurch gegeben, dass die gondelseitige Ringstruktur mit Permanent-Magnetelementen bestückt ist.It is advantageously possible to integrate the linear motor segments directly into one of the ring structures. Alternatively, it is also possible to couple the linear motor segments via a ring plate with the fuselage-side ring structure. A particularly advantageous embodiment with regard to a high electrical efficiency the pivoting device is given by the fact that the gondola-side ring structure is equipped with permanent magnet elements.

Die beiden Ringstrukturen sind vorzugsweise jeweils als Lagerringe ausgebildet und gegeneinander durch Wälzkörper abgestützt sind. Diese Wälzkörper können als Kugeln ausgeführt sein, wobei an den Lagerringen Laufrillen ausgebildet sein können, die zu einem axial und radial tragenden Lageraufbau führen. Alternativ zur Ausgestaltung der Wälzkörper als Kugeln ist es auch möglich, die Lagereinrichtung als Axial-/Radial-Zylinderrollenlager oder insbesondere auch als Kreuzrollenlager auszubilden.The two ring structures are preferably each formed as a bearing rings and are supported against each other by rolling elements. These rolling elements can be designed as balls, wherein on the bearing rings grooves can be formed, which lead to an axially and radially bearing bearing structure. As an alternative to the design of the rolling elements as balls, it is also possible to form the bearing device as an axial / radial cylindrical roller bearing or in particular as a cross roller bearing.

Kurzbeschreibung der FigurenBrief description of the figures

Weitere Einzelheiten und Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung in Verbindung mit der Zeichnung. Es zeigt:

Figur 1
eine Skizze zur Veranschaulichung eines beispielhaften Grundaufbaus einer erfindungsgemäßen Schwenkeinrichtung für eine Schiffspropellergondel;
Figur 2
eine Darstellung zur Veranschaulichung einer zweiten Ausführungsform einer erfindungsgemäßen Schwenkeinrichtung;
Figur 3
eine weitere Darstellung zur Veranschaulichung einer dritten Ausführungsform einer erfindungsgemäßen Schwenkeinrichtung.
Further details and features of the invention will become apparent from the following description taken in conjunction with the drawings. It shows:
FIG. 1
a sketch illustrating an exemplary basic structure of a pivoting device according to the invention for a ship propeller nacelle;
FIG. 2
a representation for illustrating a second embodiment of a pivoting device according to the invention;
FIG. 3
a further illustration for illustrating a third embodiment of a pivoting device according to the invention.

Ausführliche Beschreibung der FigurenDetailed description of the figures

In Figur 1 ist eine erfindungsgemäße Schwenkeinrichtung für eine Propellergondel 1 dargestellt. Diese Schwenkeinrichtung umfasst eine Lagereinrichtung 2 die wie aus der eingebundenen Detaildarstellung ersichtlich eine rumpfseitig montierte stationäre Ringstruktur 3 und eine gegenüber dieser schwenkbare, gondelseitig montierte Ringstruktur 4 umfasst. Diese Schwenkeinrichtung zeichnet sich dadurch aus, dass diese eine Antriebseinrichtung 5 umfasst zum Schwenken der gondelseitig montierten Ringstruktur 4 gegenüber der rumpfseitigen Ringstruktur 3, wobei die Antriebseinrichtung 5 derart ausgebildet ist, dass zum Schwenken der gondelseitigen Ringstruktur 4 in diese auf magnetischem Wege eine Querkrafteinleitung erfolgt.In FIG. 1 a pivoting device according to the invention for a propeller pod 1 is shown. This pivoting device comprises a bearing device 2 which, as can be seen from the detailed illustration, comprises a stationary ring structure 3 mounted on the fuselage side and a ring structure 4 which is pivotable relative to this and mounted on the gondola side. This pivoting device is characterized by the fact that this a drive device 5 comprises for pivoting the gondola side mounted ring structure 4 relative to the fuselage-side ring structure 3, wherein the drive means 5 is formed such that for the pivoting of the gondola-side ring structure 4 in this magnetic path, a transverse force is introduced.

Die Antriebseinrichtung 5 ist hier derart ausgebildet, dass die Querkrafteinleitung durch mehrere in Umfangsrichtung der gondelseitigen Ringstruktur abfolgende Linearmotorsegmente 5a erfolgt. Die Schwenkeinrichtung umfasst weiterhin eine hier nicht näher dargestellte Bremseinrichtung, zur Festlegung der gondelseitigen Ringstruktur 4 gegenüber der rumpfseitigen Ringstruktur 3. Die Bremseinrichtung kann so ausgebildet sein, dass diese über das Magnetfeld der Linearmotorsegmente 5a betätigbar ist, so dass bei entsprechender Spannungsbeaufschlagung der Linearmotorsegmente 5a die Bremseinrichtung einen Freigabezustand einnimmt der eine Drehung der gondelseitigen Ringstruktur unter Wirkung der seitens der Linearmotorsegmente 5a generierten Magnetkräfte ermöglicht. Alternativ zu der hier gezeigten Bauform ist es auch möglich, die Linearmotorsegmente in eine der Ringstrukturen 3, 4, vorzugsweise die stationäre Ringstruktur 3 zu integrieren.The drive device 5 is here designed in such a way that the transverse force introduction is effected by a plurality of linear motor segments 5a following in the circumferential direction of the gondola-side ring structure. The pivoting device further comprises a brake device, not shown here, for fixing the gondola-side ring structure 4 relative to the fuselage-side ring structure 3. The braking device can be designed so that it is actuated via the magnetic field of the linear motor segments 5a, so that with appropriate voltage application of the linear motor segments 5a Braking device assumes a release state which allows rotation of the gondola-side ring structure under the action of the magnetic forces generated by the linear motor segments 5a. As an alternative to the design shown here, it is also possible to integrate the linear motor segments into one of the ring structures 3, 4, preferably the stationary ring structure 3.

Bei dem hier gezeigten Ausführungsbeispiel sind die Linearmotorsegmente 5a über eine Ringplatte 6 mit der rumpfseitigen Ringstruktur 3 gekoppelt. Die gondelseitige Ringstruktur 4 ist mit mehreren in Umfangsrichtung abfolgenden, hier nicht näher erkennbaren Permanent-Magnetelementen bestückt.In the embodiment shown here, the linear motor segments 5a are coupled via a ring plate 6 with the fuselage-side ring structure 3. The nacelle-side ring structure 4 is equipped with a plurality of circumferentially following, here not closer to recognizable permanent magnet elements.

Die beiden Ringstrukturen 3, 4 sind bei diesem Ausführungsbeispiel jeweils als Lagerringe ausgebildet und gegeneinander durch Wälzkörper W abgestützt. Diese Wälzkörper W sind hier als Kugeln ausgeführt, und die so geschaffene Lagereinrichtung fungiert als axial und radial tragendes Kugellager. Die Lagereinrichtung 2 ist als fettgeschmierte Lagereinrichtung ausgeführt ist, und mittels einer hier nicht näher dargestellten Dichtungseinrichtung abgedichtet.The two ring structures 3, 4 are each formed in this embodiment as a bearing rings and supported against each other by rolling elements W. These rolling elements W are designed here as balls, and the bearing device thus created acts as an axially and radially supporting ball bearing. The bearing device 2 is designed as a grease-lubricated bearing device, and sealed by means of a sealing device not shown here.

In Figur 2 ist eine zweite Ausführungsform einer erfindungsgemäßen Schwenkeinrichtung für eine Propellergondel dargestellt. Diese Schwenkeinrichtung umfasst wiederum eine Lagereinrichtung 2 die eine rumpfseitig montierte stationäre Ringstruktur 3 und eine gegenüber dieser schwenkbare, gondelseitig montierte Ringstruktur 4. Auch diese Schwenkeinrichtung zeichnet sich dadurch aus, dass diese eine Antriebseinrichtung 5 umfasst zum Schwenken der gondelseitig montierten Ringstruktur 4 gegenüber der rumpfseitigen Ringstruktur 3, wobei die Antriebseinrichtung 5 derart ausgebildet ist, dass zum Schwenken der gondelseitigen Ringstruktur 4 in diese auf magnetischem Wege eine Querkrafteinleitung erfolgt.In FIG. 2 a second embodiment of a pivoting device according to the invention for a propeller nacelle is shown. This pivoting device in turn includes This pivoting device is characterized in that it comprises a drive device 5 for pivoting the gondola-side mounted ring structure 4 relative to the fuselage-side ring structure 3, wherein the Drive device 5 is designed such that for the pivoting of the gondola-side ring structure 4 in this magnetic path, a transverse force is introduced.

Die Antriebseinrichtung 5 umfasst mehrere in Umfangsrichtung der Ringstruktur 4 abfolgende Linearmotorsegmente 5a. Die Linearmotorsegmente 5a sind wiederum über eine Ringplatte 6 mit der rumpfseitigen Ringstruktur 3 gekoppelt. Die gondelseitige Ringstruktur 4 ist mit mehreren in Umfangsrichtung abfolgenden Permanent-Magnetelementen 4a bestückt.The drive device 5 comprises a plurality of linear motor segments 5a following in the circumferential direction of the ring structure 4. The linear motor segments 5a are in turn coupled via a ring plate 6 with the fuselage-side ring structure 3. The nacelle-side ring structure 4 is equipped with a plurality of circumferentially subsequent permanent magnet elements 4a.

Die Lagereinrichtung 2 ist bei diesem Ausführungsbeispiel als Axial-/Radial-Zylinderrollenlager ausgebildet. An der gondelseitigen Ringstruktur 4 ist ein Ringsteg 4b ausgebildet. Dieser Ringsteg 4b bildet eine obere und eine unter Lauffläche 4c, 4d. Der Ringsteg 4b ist über obere und untere Zylinderrollen 2a, 2b axial und über seitliche Zylinderrollen 2c radial in der rumpfseitigen Ringstruktur 4 abgestützt. Die Lagereinrichtung 2 ist als fettgeschmierte Lagereinrichtung ausgeführt ist, und mittels einer hier nicht näher dargestellten Dichtungseinrichtung abgedichtet. Die Lagereinrichtung 2 kann vollständig mit einem wasserabweisenden Fett gefüllt sein.The bearing device 2 is formed in this embodiment as axial / radial cylindrical roller bearings. At the nacelle-side ring structure 4, a ring land 4b is formed. This ring land 4b forms an upper and a lower running surface 4c, 4d. The annular web 4b is axially supported via upper and lower cylindrical rollers 2a, 2b and radially in the fuselage-side annular structure 4 via lateral cylindrical rollers 2c. The bearing device 2 is designed as a grease-lubricated bearing device, and sealed by means of a sealing device not shown here. The storage device 2 can be completely filled with a water-repellent grease.

Bei der in Figur 2 gezeigten Variante ist ein direkt angetriebenes Axial/Radial- Zylinderrollenlager (Y-Bauform) vorgesehen. Der Außenring 3 steht und ist mit dem Schiffsrumpf verbunden. Der Innenring 4 ist mit dem Antriebspod verbunden und dreht. Der Außenring 3 ist als zweiteiliger Ring ausgeführt und umfasst einen Basisring 3a der die Laufflächen 3b, 3c für die Zylinderrollen 2a, 2c bildet. Weiterhin umfasst der Außenring 3 einen Deckelring 3d der als solcher eine Lauffläche 3e für die Zylinderrollen 2b bildet.At the in FIG. 2 shown variant, a directly driven axial / radial cylindrical roller bearing (Y-style) is provided. The outer ring 3 is and is connected to the hull. The inner ring 4 is connected to the drive spod and rotates. The outer ring 3 is designed as a two-part ring and comprises a base ring 3a which forms the running surfaces 3b, 3c for the cylindrical rollers 2a, 2c. Furthermore, the outer ring 3 comprises a cover ring 3d, which as such forms a running surface 3e for the cylindrical rollers 2b.

In Verbindung mit den vorangehend beschriebenen Figuren 1 und 2 wird der prinzipielle Aufbau der erfindungsgemäßen Propellergondel-Schwenkein-richtung veranschaulicht. Die erfindungsgemäße Schwenkeinrichtung fungiert als Azimutantrieb mit einem feststehenden, d.h. mit dem Schiffsrumpf oder einer mit dem Schiffsrumpf verbunden Struktur, verbundenem Außenring 3 und drehendem, mittels mehrerer segmentförmiger Linearmotoren 5a, angetriebenen und mit der Antriebsgondel 1 verbundenem Innenring 4. Bei beiden dargestellten Ausführungsformen sind am Innendurchmesser des Innenringes 4 über den Umfang verteilt Magnete befestigt die in Verbindung mit den Linermotoren 5a eine Querkraftgenerierung ermöglichen. Die Linearmotoren sind an einer Deckplatte 6 befestigt. Die Deckplatte 6 wiederum ist mit dem Außenring 3 verbunden.In conjunction with the previously described FIGS. 1 and 2 the basic structure of the propeller ply pivoting device according to the invention is illustrated. The pivoting device according to the invention acts as an azimuth drive with a fixed, ie with the hull or connected to the hull structure, connected outer ring 3 and rotating, by means of a plurality of segmental linear motors 5a, driven and connected to the drive nacelle 1 inner ring 4. In both embodiments shown are on Inner diameter of the inner ring 4 distributed over the circumference magnets attached in conjunction with the liner motors 5a allow a lateral force generation. The linear motors are attached to a cover plate 6. The cover plate 6 in turn is connected to the outer ring 3.

Die Unterschiede zwischen den Ausführungsformen nach den Figuren 1 und 2 bestehen im wesentlichen darin, dass in Figur 1 ist eine Variante dargestellt ist, bei welcher eine Drehlagerung in Form eines Kugellagers realisiert ist, wogegen in Figur 2 eine Variante veranschaulicht ist, bei welcher die Lagerung als Zylinderrollenlager ausgeführt ist.The differences between the embodiments according to the FIGS. 1 and 2 consist essentially in that in FIG. 1 is shown a variant in which a pivot bearing is realized in the form of a ball bearing, whereas in FIG. 2 a variant is illustrated, in which the bearing is designed as a cylindrical roller bearing.

Für eine alternative Ausführung mit drehendem Außenring 3, werden die Magnete am Außenring 3 befestigt und die Linearmotorsegmente 5a sind dann um den Außenring 3 herum angeordnet. Die Deckplatte 6 ist dann mit dem Innenring 4 verbunden.For an alternative embodiment with rotating outer ring 3, the magnets are attached to the outer ring 3 and the linear motor segments 5a are then arranged around the outer ring 3 around. The cover plate 6 is then connected to the inner ring 4.

Die Aktivierung der Linearmotorsegmente 5a erfolgt über eine elektronisch angesteuerte Leistungselektronik. Diese ist vorzugsweise so aufgebaut, dass über diese die Induktivität der einzelnen Spulen der Linearmotorsegmente erfasst werden kann und hierauf basierend die momentane Drehposition der Lagerringe 3, 4 zueinander bestimmt werden kann.The activation of the linear motor segments 5 a via an electronically controlled power electronics. This is preferably constructed so that the inductance of the individual coils of the linear motor segments can be detected via this and based on this, the instantaneous rotational position of the bearing rings 3, 4 can be determined to each other.

In Figur 3 ist eine dritte Variante einer erfindungsgemäßen Schwenkeinrichtung für eine Propellergondel dargestellt. Diese Schwenkeinrichtung umfasst wiederum eine Lagereinrichtung 2 die eine an einem Schiffsrumpf VB montierte stationäre Ringstruktur 3 und eine gegenüber dieser schwenkbare, gondelseitig montierte Ringstruktur 4 aufweist. Auch diese Schwenkeinrichtung zeichnet sich dadurch aus, dass diese eine Antriebseinrichtung 5 umfasst zum Schwenken der gondelseitig montierten Ringstruktur 4 gegenüber der rumpfseitigen Ringstruktur 3, wobei die Antriebseinrichtung 5 derart ausgebildet ist, dass zum Schwenken der gondelseitigen Ringstruktur 4 in diese auf magnetischem Wege eine Querkrafteinleitung erfolgt.In FIG. 3 a third variant of a pivoting device according to the invention for a propeller nacelle is shown. This pivoting device in turn comprises a bearing device 2 which has a stationary ring structure 3 mounted on a ship's hull VB and a ring structure 4 which is pivotable relative thereto and is mounted on the gondola side. This pivoting device is also characterized in that it comprises a drive device 5 for pivoting the ring structure 4 mounted on the gondola side with respect to the fuselage-side ring structure 3, wherein the drive device 5 is formed such that for the pivoting of the nacelle-side ring structure 4 in this magnetically carried out a transverse force introduction.

Die Antriebseinrichtung 5 umfasst mehrere in Umfangsrichtung der Ringstruktur 4 abfolgende Linearmotorsegmente 5a. Die Linearmotorsegmente 5a sind wiederum über eine Ringplatte 6 mit der rumpfseitigen Ringstruktur 3 gekoppelt. Die gondelseitige Ringstruktur 4 ist mit mehreren in Umfangsrichtung abfolgenden Permanent-Magnetelementen 4a bestückt.The drive device 5 comprises a plurality of linear motor segments 5a following in the circumferential direction of the ring structure 4. The linear motor segments 5a are in turn coupled via a ring plate 6 with the fuselage-side ring structure 3. The nacelle-side ring structure 4 is equipped with a plurality of circumferentially subsequent permanent magnet elements 4a.

Die Lagereinrichtung 2 ist bei diesem Ausführungsbeispiel als Kreuzrollenlager ausgebildet. Dieses Kreuzrollenlager ist vorzugsweise leicht vorgespannt, so dass die gondelseitige Ringstruktur 4 über den Kreuzrollensatz im wesentlichen spielfrei an der rumpfseitigen Ringstruktur 3 drehbar abgestützt ist. An der gondelseitigen Ringstruktur 4 ist eine Kreuzrollenlaufnut 40b ausgebildet die in an sich bekannter Weise zwei zueinander angestellte Laufflächen 40c, 40d bildet. Über diese Kreuzrollenlaufnut 40b stützt sich die gondelseitige Ringstruktur auf dem Kreuzrollensatz 20 ab. Der Kreuzrollensatz 20 wiederum läuft in einer äußeren Kreuzrollenlaufnut 30a. Auch diese Lagereinrichtung 2 ist vorzugsweise als fettgeschmierte Lagereinrichtung ausgeführt ist, und mittels einer hier nicht näher dargestellten Dichtungseinrichtung abgedichtet.The bearing device 2 is formed in this embodiment as a cross roller bearing. This cross roller bearing is preferably slightly biased, so that the gondola-side ring structure 4 is rotatably supported on the fuselage-side ring structure 3 via the cross roller set substantially free of play. On the gondola-side ring structure 4 a Kreuzrollenlaufnut 40b is formed which forms in a conventional manner two mutually employed treads 40c, 40d. About this Kreuzrollenlaufnut 40b, the gondola-side ring structure is supported on the cross roller 20 set. The cross roller set 20 in turn runs in an outer Kreuzrollenlaufnut 30 a. This bearing device 2 is preferably designed as a grease-lubricated bearing device, and sealed by means of a sealing device not shown here.

Bei den vorangehend beschriebenen Ausführungsbeispielen ist jeweils die mit dem Magnetfeld der Linearmotorsegmente beaufschlagte Gegenkomponente entweder integral mit dem Laufring 3 oder durch an diesen angesetzte Magnete gebildet. Es ist möglich, diese mit den entlang einer Kreisbahn abfolgend angeordneten Linearmotorsegmenten zusammenwirkende Gegenkomponente auch als separate Ringstruktur zu bilden die direkt, oder unter Zwischenlage anderer Komponenten an die entsprechende Ringstruktur angebunden und durch diese geführt ist. Je nach Anforderung an das aufzubringende Drehmoment kann insbesondere die axiale Bauhöhe der Linearmotorsegmente vergrößert werden. Die Linearmotorsegmente können auch einen L- oder U-förmigen Querschnitt aufweisen und damit eine vergrößerte Feldaustrittsfläche bilden.In the embodiments described above, in each case the counter-component acted upon by the magnetic field of the linear motor segments is formed either integrally with the raceway 3 or by magnets attached thereto. It is possible to form these with the arranged along a circular path successively arranged linear motor segments counteracting component as a separate ring structure which is connected directly or with the interposition of other components to the corresponding ring structure and guided by this. Depending on the requirement for the applied torque in particular the axial height of the linear motor segments can be increased. The linear motor segments may also have an L-shaped or U-shaped cross section and thus form an enlarged field exit surface.

Die Linearmotorsegmente werden vorzugsweise mit der stationären Struktur des Schiffes gekoppelt, so dass keine Spannungsübertragung über flexible Leitungen oder Schleifringsysteme in das bewegte System erforderlich ist. Grundsätzlich, und zwar insbesondere bei Anwendungen die keine deutlich über 360° hinausgehenden Schwenkbewegungen erfordern ist es möglich die Linearmotorsegmente an das bewegliche System anzubinden und die vom entsprechenden Magnetfeld erfasste Gegenkomponente rumpfseitig festzulegen. Bezugszeichenliste 1 Propellergondel 2 Lagereinrichtung 2a Zylinderrollen 2b Zylinderrollen 2c Zylinderrollen 3 stationäre Ringstruktur 3a Basisring 3b Lauffläche 3c Lauffläche 3d Deckelring 3e Lauffläche 4 gondelseitig montierten Ringstruktur 4b Ringsteg 5 Antriebseinrichtung 5a Linearmotorsegmente 6 Ringplatte 30a Kreuzrollenlaufnut 40b Kreuzrollenlaufnut 40c angestellte Lauffläche 40d angestellte Lauffläche VB Schiffsrumpf W Wälzkörper The linear motor segments are preferably coupled to the stationary structure of the ship, so that no voltage transmission via flexible lines or slip ring systems is required in the moving system. In principle, and in particular in applications that do not require pivoting movements significantly beyond 360 °, it is possible to connect the linear motor segments to the movable system and to determine the mating component detected by the corresponding magnetic field. <B> LIST OF REFERENCES </ b> 1 Azipod 2 Storage facility 2a cylindrical rollers 2 B cylindrical rollers 2c cylindrical rollers 3 stationary ring structure 3a base ring 3b tread 3c tread 3d bezel 3e tread 4 gondola side mounted ring structure 4b ring land 5 driving means 5a Linear motor segments 6 ring plate 30a Kreuzrollenlaufnut 40b Kreuzrollenlaufnut 40c employed tread 40d employed tread VB hull W rolling elements

Claims (10)

Schwenkeinrichtung für eine Schiffspropellergondel (1) mit: - einer Lagereinrichtung (2) die eine rumpfseitig montierte stationäre Ringstruktur (3) und eine gegenüber dieser schwenkbare, gondelseitig montierte Ringstruktur (4) umfasst, und - einer Antriebseinrichtung (5) zum Schwenken der gondelseitig montierten Ringstruktur (4) gegenüber der rumpfseitigen Ringstruktur (3), - wobei die Antriebseinrichtung (5) derart ausgebildet ist, dass zum Schwenken der gondelseitigen Ringstruktur (4) in diese Ringstruktur (4) auf magnetischem Wege eine Querkrafteinleitung erfolgt. Swiveling device for a ship's propeller pod (1) with: - A bearing device (2) comprising a hull side mounted stationary ring structure (3) and a relative to this pivotable, gondola side mounted ring structure (4), and a drive device (5) for pivoting the gondola-side mounted ring structure (4) relative to the fuselage-side ring structure (3), - Wherein the drive means (5) is designed such that for the pivoting of the gondola-side ring structure (4) in this ring structure (4) by magnetic means a transverse force introduction takes place. Schwenkeinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Querkrafteinleitung durch mehrere in Umfangsrichtung der gondelseitigen Ringstruktur abfolgende Linearmotorsegmente (5a) erfolgt.Swiveling device according to claim 1, characterized in that the transverse force introduction is effected by a plurality of linear motor segments (5a) following in the circumferential direction of the gondola-side ring structure. Schwenkeinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass eine Brems- oder Arretiereinrichtung vorgesehen ist, zur Festlegung der gondelseitigen Ringstruktur (4).Swiveling device according to claim 1 or 2, characterized in that a braking or locking device is provided for fixing the gondola-side ring structure (4). Schwenkeinrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Linearmotorsegmente (5a) in eine der Ringstrukturen (3, 4) integriert sind.Swiveling device according to claim 2 or 3, characterized in that the linear motor segments (5a) are integrated into one of the ring structures (3, 4). Schwenkeinrichtung nach wenigstens einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Linearmotorsegmente (5a) über eine Ringplatte (6) mit der rumpfseitigen Ringstruktur (3) gekoppelt sind.Pivot device according to at least one of claims 1 to 4, characterized in that the linear motor segments (5a) are coupled via a ring plate (6) with the fuselage-side ring structure (3). Schwenkeinrichtung nach wenigstens einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die gondelseitige Ringstruktur (4) mit Permanent- oder Elektromagnetelementen (4a) bestückt ist.Pivot device according to at least one of claims 1 to 5, characterized in that the gondola-side ring structure (4) with permanent or electromagnetic elements (4a) is fitted. Schwenkeinrichtung nach wenigstens einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die beiden Ringstrukturen (3, 4) jeweils als Lagerringe ausgebildet sind und gegeneinander durch Wälzkörper (W) abgestützt sind.Pivot device according to at least one of claims 1 to 6, characterized in that the two ring structures (3, 4) are each formed as a bearing rings and are supported against each other by rolling elements (W). Schwenkeinrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Wälzkörper (W) als Kugeln ausgeführt sind, und die Lagereinrichtung (2) als axial und radial tragendes Kugellager ausgebildet ist.Swiveling device according to claim 7, characterized in that the rolling elements (W) are designed as balls, and the bearing device (2) is designed as an axially and radially supporting ball bearing. Schwenkeinrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Lagereinrichtung Axial-/Radial-Zylinderrollenlager, oder als Kreuzrollenlager ausgebildet ist.Swiveling device according to claim 7, characterized in that the bearing device axial / radial cylindrical roller bearings, or is designed as a cross roller bearing. Schwenkeinrichtung nach wenigstens einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Lagereinrichtung (2) als fettgeschmierte Lagereinrichtung ausgeführt ist, und dass eine Dichtungseinrichtung vorgesehen ist, zur Abdichtung der Lagereinrichtung.Swiveling device according to at least one of claims 1 to 9, characterized in that the bearing device (2) is designed as a grease-lubricated bearing device, and that a sealing device is provided for sealing the bearing device.
EP13162327.4A 2012-05-09 2013-04-04 Pivoting device for a ship propeller pod Not-in-force EP2662278B1 (en)

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