ES2561041T3 - Azimuthal propeller drive installation with reduced mounting height for a floating installation - Google Patents
Azimuthal propeller drive installation with reduced mounting height for a floating installation Download PDFInfo
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- ES2561041T3 ES2561041T3 ES09749744.0T ES09749744T ES2561041T3 ES 2561041 T3 ES2561041 T3 ES 2561041T3 ES 09749744 T ES09749744 T ES 09749744T ES 2561041 T3 ES2561041 T3 ES 2561041T3
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- electric motor
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
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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
- B63H2005/1254—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis
- B63H2005/1256—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis with mechanical power transmission to propellers
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Toys (AREA)
Abstract
Instalación de accionamiento de hélice azimutal (1) con una altura de montaje reducida para una instalación flotante, como p.ej. un barco o una plataforma alejada de la costa (del inglés offshore) con - una carcasa (5) a disponer por debajo de una estructura de la instalación flotante en el agua, en la que está montado giratoriamente al menos un árbol de hélice (7), al que está acoplada al menos una hélice (11), - al menos un motor eléctrico (20) con un estator (23) y un rotor (22) para accionar la al menos una hélice (11), - un vástago hueco (2), que sujeta la carcasa (5) de forma solidaria en rotación, - en donde el motor eléctrico (20) está dispuesto por fuera de la carcasa (5) y acciona con su rotor (22) un árbol de impulsión (21), que está acoplado a al menos un árbol de hélice (7) y que discurre al menos parcialmente a través del vástago hueco (2), en donde el motor eléctrico (20) está conformado como un motor eléctrico anular, que está dispuesto anularmente alrededor del árbol de impulsión (21), en donde el rotor (22) del motor eléctrico (20) está unido, a través de un soporte de rotor (25), al árbol de impulsión (21), caracterizada porque el soporte de rotor (25) comprende un buje (40), una corona soporte circular (41) y un elemento de unión (42) para unir el buje (40) a la corona soporte (41), en donde el buje (40) está unido de forma solidaria en rotación al árbol de impulsión (21) y la corona soporte (42) soporta el rotor (22), y el elemento de unión (42) está configurado como una rueda de disco o una rueda de radios a la que se han proporcionado unos orificios o una rendijas, y caracterizada por un motor eléctrico (30) para hacer girar el vástago (2) alrededor de un eje de giro (3), en donde el motor eléctrico (30) también está conformado como un motor eléctrico anular y está dispuesto anularmente alrededor del eje de giro (3) del vástago (2), y en donde el rotor (32) del motor eléctrico (30) está unido de forma solidaria en rotación al vástago (2) y el estator (33) del motor eléctrico (30) está unido de forma solidaria en rotación a la estructura de la instalación flotante.Azimuthal propeller drive installation (1) with a reduced mounting height for a floating installation, such as a boat or a platform offshore (offshore English) with - a housing (5) to be arranged below of a structure of the floating system in the water, in which at least one propeller shaft (7) is rotatably mounted, to which at least one propeller (11) is coupled, - at least one electric motor (20) with a stator (23) and a rotor (22) to drive the at least one propeller (11), - a hollow rod (2), which holds the housing (5) in a solidary way in rotation, - where the electric motor (20 ) is arranged outside the housing (5) and drives with its rotor (22) a drive shaft (21), which is coupled to at least one propeller shaft (7) and which runs at least partially through the rod gap (2), wherein the electric motor (20) is shaped as an annular electric motor, which is arranged to annul mind around the drive shaft (21), where the rotor (22) of the electric motor (20) is connected, via a rotor support (25), to the drive shaft (21), characterized in that the support of The rotor (25) comprises a bushing (40), a circular support crown (41) and a connecting element (42) for joining the bushing (40) to the support crown (41), where the bushing (40) is connected in solidarity with the drive shaft (21) and the support crown (42), it supports the rotor (22), and the connecting element (42) is configured as a disk wheel or a spoke wheel to which they have provided holes or slits, and characterized by an electric motor (30) to rotate the rod (2) around an axis of rotation (3), where the electric motor (30) is also shaped as an electric motor annular and is arranged annularly around the axis of rotation (3) of the rod (2), and where the rotor (32) of the electric motor (30) is attached in a solidary way in rotation to the rod (2) and the stator (33) of the electric motor (30) is joined in a solidary way in rotation to the structure of the floating installation.
Description
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DESCRIPCIONDESCRIPTION
Instalacion de accionamiento de helice azimutal con altura de montaje reducida para una instalacion flotanteAzimuthal propeller drive installation with reduced mounting height for a floating installation
La presente invencion hace referencia a una instalacion de accionamiento de helice azimutal con una altura de montaje reducida para una instalacion flotante, como p.ej. un barco o una plataforma alejada de la costa (del ingles offshore) conThe present invention refers to an azimuthal helix drive installation with a reduced mounting height for a floating installation, such as a ship or a platform offshore (offshore English) with
- una carcasa a disponer por debajo de una estructura de la instalacion flotante en el agua, en la que esta montado giratoriamente al menos un arbol de helice, al que esta acoplada al menos una helice,- a housing to be arranged below a structure of the floating installation in the water, in which at least one propeller shaft is rotatably mounted, to which at least one propeller is coupled,
- al menos un motor electrico con un estator y un rotor para accionar la al menos una helice,- at least one electric motor with a stator and a rotor to drive the at least one propeller,
- un vastago hueco, que sujeta la carcasa de forma solidaria en rotacion,- a hollow rod, which holds the carcass in a rotating manner,
- en donde el motor electrico esta dispuesto por fuera de la carcasa y acciona con su rotor un arbol de impulsion, que esta acoplado a al menos un arbol de helice y que discurre al menos parcialmente a traves del vastago hueco.- where the electric motor is arranged outside the housing and drives a drive shaft with its rotor, which is coupled to at least one propeller shaft and which runs at least partially through the hollow rod.
Las instalaciones de accionamiento de helice de este tipo se utilizan cada vez con mas frecuencia y con unas potencias mayores en particular en forma de instalaciones de propulsion azimutales para barcos, es decir, el accionamiento se usa tanto para la propulsion como para el pilotaje del barco, ya que ampllan notablemente el campo de aplicacion de muchos tipos de barcos y, de este modo, ponen a disposicion un barco para un abanico de aplicaciones mas amplio.Propeller drive installations of this type are used more and more frequently and with higher powers in particular in the form of azimuthal propulsion facilities for ships, that is, the drive is used for both propulsion and ship piloting. , since they significantly extend the field of application of many types of ships and, thus, make available a ship for a wider range of applications.
Ejemplos de tales instalaciones de propulsion azimutales son helices de timon, accionamientos POD y propulsores (del ingles thruster). A este respecto el vastago y la carcasa de helice fijada al mismo puede girar en forma de una gondola, mediante un accionamiento de ajuste, con relacion a un eje de giro fundamentalmente vertical con respecto a la estructura del barco. El al menos un arbol de helice esta montado fundamentalmente en horizontal en esta carcasa en forma de gondola. El motor electrico para accionar el arbol de impulsion esta fijado a este respecto, en el extremo superior del vastago, normalmente al vastago o a una estructura soporte fijada de forma solidaria en rotacion al barco, y presenta un estator y un rotor, en donde el rotor esta unido al arbol de impulsion que discurre al menos parcialmente a traves del vastago hueco. La transmision del par de giro del motor electrico desde el arbol de impulsion al arbol de helice puede realizarse entonces por ejemplo a traves de un engranaje conico, que esta dispuesto en la carcasa en forma de gondola.Examples of such azimuthal propulsion facilities are rudder helices, POD drives and thrusters. In this respect, the rod and the propeller housing fixed thereto can rotate in the form of a gondola, by means of an adjustment drive, in relation to a fundamentally vertical axis of rotation with respect to the structure of the ship. The at least one propeller shaft is mounted horizontally in this gondola-shaped housing. The electric motor for driving the drive shaft is fixed in this respect, at the upper end of the rod, usually to the rod or to a support structure fixedly and rotatably to the ship, and has a stator and a rotor, where the rotor It is attached to the drive shaft that runs at least partially through the hollow rod. The transmission of the torque of the electric motor from the drive shaft to the propeller shaft can then be carried out, for example, by a conical gear, which is arranged in the gondola-shaped housing.
Debido a que en los motores de este tipo la longitud del motor en direccion axial, es decir en la direction del eje de giro del rotor, es relativamente grande, el motor se extiende con una longitud relativamente grande por encima del vastago hasta dentro de la instalacion flotante. La instalacion de accionamiento de helice presenta de este modo una considerable altura de montaje, con lo que se producen limitaciones en cuanto a posicionamiento de la instalacion de accionamiento de helice en la instalacion flotante as! como del espacio disponible en la instalacion flotante.Because in motors of this type the length of the motor in the axial direction, that is to say in the direction of the axis of rotation of the rotor, is relatively large, the motor extends with a relatively large length above the rod to within the floating installation. The propeller drive installation thus has a considerable mounting height, which results in limitations in terms of positioning the propeller drive installation in the floating installation as! as of the space available in the floating installation.
Del documento EP 1 687 201 B1 se conoce una propulsion por chorro para vehlculos acuaticos, que se basa en el concepto de accionamiento de un motor electrico anular. En un motor electrico anular de este tipo se trata de una maquina electrica con un rotor conformado anularmente y un estator, que esta dispuesto anularmente alrededor del rotor, de tal manera que forma con el rotor una maquina electrica. En el lado interior anular del rotor estan dispuestas unas paletas. La propulsion por chorro no presenta ningun arbol de rotor central, es decir, carece de una pieza constructiva que discurre a lo largo del eje de giro del rotor a traves del mismo.From EP 1 687 201 B1 a jet propulsion for water vehicles is known, which is based on the concept of driving an annular electric motor. In an annular electric motor of this type it is an electric machine with an annularly shaped rotor and a stator, which is arranged annularly around the rotor, such that it forms an electric machine with the rotor. On the inner annular side of the rotor are arranged vanes. The jet propulsion does not have any central rotor shaft, that is, it lacks a construction piece that runs along the axis of rotation of the rotor through it.
El documento JP 2000142576 A, que se considera el estado de la tecnica mas proximo, revela un accionamiento para una helice de un barco, en el que la helice es accionada mediante un motor electrico dispuesto encima de la misma con un arbol de motor que discurre verticalmente.JP 2000142576 A, which is considered to be the closest state of the art, discloses a drive for a ship's propeller, in which the propeller is driven by an electric motor disposed on top of it with a motor shaft that runs vertically
Partiendo de esto el objeto de la presente invencion consiste en perfeccionar una instalacion de accionamiento de helice conforme al preambulo de la revindication 1, de tal manera que presente una menor altura de montaje en la instalacion flotante.Starting from this the object of the present invention is to perfect a propeller drive installation according to the preamble of revindication 1, so that it has a lower mounting height in the floating installation.
La solution de este objeto se logra mediante una instalacion de accionamiento de helice con las caracterlsticas de la reivindicacion 1.The solution of this object is achieved by means of a propeller drive installation with the characteristics of claim 1.
Unas conformaciones ventajosas son respectivamente objeto de las reivindicaciones dependientes.Advantageous conformations are respectively subject to the dependent claims.
El motor electrico esta conformado conforme a la invencion como un motor electrico anular, que esta dispuesto anularmente alrededor del arbol de impulsion, en donde el rotor del motor anular esta unido de forma solidaria en rotacion, a traves de un soporte de rotor, al arbol de impulsion.The electric motor is conformed according to the invention as an annular electric motor, which is arranged annularly around the drive shaft, where the annular motor rotor is joined in a rotating manner, through a rotor support, to the shaft. of impulsion.
Por motor anular se entiende a este respecto un motor que, con relacion al eje de giro del rotor en direccion radial, 5 presenta una extension claramente mayor que en direccion axial. El rotor esta conformado a este respecto anularmente y el estator esta dispuesto anularmente alrededor del rotor.An annular motor is understood in this respect to be a motor which, in relation to the rotation axis of the rotor in the radial direction, 5 has a clearly greater extension than in the axial direction. The rotor is annularly shaped in this respect and the stator is arranged annularly around the rotor.
Por disposicion anular del rotor alrededor del arbol de impulsion se entiende a este respecto que el arbol de impulsion discurre a lo largo del eje de giro del rotor y, de forma preferida, incluso a traves del rotor, es decir, que discurre a traves de la superficie abarcada por el rotor.An annular arrangement of the rotor around the drive shaft means in this respect that the drive shaft runs along the axis of rotation of the rotor and, preferably, even through the rotor, that is, it runs through the surface covered by the rotor.
10 A causa de la extension relativamente reducida del motor electrico anular en direccion axial, la altura de montaje del motor en la instalacion flotante es muy pequena. El mayor espacio de montaje en direccion radial, que en contrapartida se necesita a causa de la mayor extension radial, existe por el contrario casi siempre en muchas instalaciones flotantes y se considera menos esencial. El motor anular esta adaptado de forma preferida en cuanto a su diametro exterior al diametro exterior de una estructura soporte de la instalacion flotante para la instalacion de 15 accionamiento de helice azimutal. El diametro exterior del motor anular es con ello de forma preferida menor o igual el diametro exterior de la estructura soporte. El motor anular puede aplicarse a este respecto por encima o por dentro de la estructura soporte (tambien llamado “cono soporte”).10 Due to the relatively small extension of the annular electric motor in the axial direction, the mounting height of the motor in the floating installation is very small. The greater mounting space in the radial direction, which is required in return due to the greater radial extent, on the contrary almost always exists in many floating installations and is considered less essential. The annular motor is preferably adapted in terms of its outer diameter to the outer diameter of a support structure of the floating installation for the installation of azimuthal helix drive. The outer diameter of the annular motor is preferably less than or equal to the outer diameter of the support structure. The annular motor can be applied in this respect above or inside the support structure (also called "support cone").
Conforme a una configuracion constructiva particularmente sencilla de la invencion, el soporte de rotor comprende un buje, una corona soporte circular y un elemento de union para unir el buje a la corona soporte, en donde el buje 20 esta unido de forma solidaria en rotacion al arbol de impulsion y la corona soporte soporta el rotor.According to a particularly simple constructive configuration of the invention, the rotor support comprises a bushing, a circular support crown and a connecting element for joining the bushing to the support crown, wherein the bushing 20 is integrally connected in rotation to the drive shaft and the crown support supports the rotor.
A este respecto es posible una buena transmision del par de giro, al mismo tiempo que una reducida necesidad de espacio y peso, por medio de que el elemento de union este configurado como una rueda de disco. Para reducir todavla mas el peso pueden proporcionarse a la rueda de disco unos orificios o unas rendijas. Alternativamente el elemento de union puede estar tambien configurado como una rueda de radios.In this respect, a good transmission of the torque is possible, at the same time as a reduced need for space and weight, by means of which the connecting element is configured as a disk wheel. To reduce the weight even more, holes or slits can be provided to the disc wheel. Alternatively, the union element can also be configured as a spokes wheel.
25 El soporte de rotor puede contener tambien un engranaje, p.ej. un engranaje planetario. De este modo pude reducirse el tamano constructivo del motor.25 The rotor support may also contain a gear, eg a planetary gear. In this way the constructive size of the engine could be reduced.
A este respecto el arbol de impulsion esta montado de forma preferida giratoriamente en el vastago. Ademas de esto, el rotor puede estar tambien montado giratoriamente en el vastago. En el caso de un pivotamiento adecuado del rotor en el vastago puede prescindirse, dado el caso, de un pivotamiento (adicional) del arbol de impulsion en el 30 vastago.In this respect, the drive shaft is preferably rotatably mounted on the rod. In addition to this, the rotor can also be rotatably mounted on the rod. In the case of a suitable pivot of the rotor in the rod, it is possible to dispense, if necessary, of a (additional) pivot of the drive shaft in the rod.
Para hacer posible una capacidad de giro de la instalacion de accionamiento de helice alrededor de un eje vertical, con relacion a la instalacion flotante, el vastago hueco puede ser giratorio a traves de al menos un motor electrico o hidraulico (designado a parti r de ahora como “motor giratorio”) alrededor de un eje de giro.In order to enable a rotation capacity of the propeller drive installation around a vertical axis, in relation to the floating installation, the hollow rod can be rotatable through at least one electric or hydraulic motor (designated hereinafter as a "rotating motor") around an axis of rotation.
De acuerdo a una conformacion especialmente ventajosa, el motor giratorio conformado como motor electrico esta 35 conformado como un motor electrico anular, que esta dispuesto anularmente alrededor del eje de giro del vastago, en donde el rotor del motor electrico esta unido al vastago y el estator del motor electrico esta unido a la estructura de la instalacion flotante. A este respecto es posible una potencia especialmente grande del motor electrico anular utilizado para el accionamiento del arbol de impulsion o el accionamiento de ajuste, en el caso de una necesidad de espacio pequena, de tal modo que el motor electrico conformado como motor anular este conformado como una 40 maquina slncrona con excitacion permanente.According to a particularly advantageous conformation, the rotating motor formed as an electric motor is shaped as an annular electric motor, which is arranged annularly around the axis of rotation of the rod, where the rotor of the electric motor is attached to the rod and the stator of the electric motor is attached to the structure of the floating installation. In this regard, an especially large power of the annular electric motor used for driving the drive shaft or the adjustment drive is possible, in the case of a need for small space, such that the electric motor shaped as an annular motor is shaped like a synchronous machine with permanent excitation.
Mediante la disposicion de un engranaje entre el motor y el arbol de impulsion, respectivamente entre el motor giratorio y el vastago y/o el motor giratorio y la instalacion flotante, puede conseguirse respectivamente un par de giro aumentado adicionalmente con la misma altura constructiva.By arranging a gear between the motor and the drive shaft, respectively between the rotating motor and the rod and / or the rotating motor and the floating installation, an additionally increased torque can be achieved respectively with the same construction height.
El acoplamiento del arbol de impulsion al arbol de helice se realiza ventajosamente a traves de un reductor de grupo 45 conico, ya que los reductores de grupo conico de este tipo destacan por una buena transmision de par de giro y una elevada fiabilidad.The coupling of the drive shaft to the propeller shaft is advantageously carried out through a conical group reducer 45, since conical group reducers of this type stand out for a good torque transmission and high reliability.
Conforme a una conformacion de la invencion, hidrodinamica particularmente ventajosa tambien para grandes clases de potencia de una instalacion de accionamiento de helice conforme a la invencion, la carcasa esta cerrada, en particular moldeada a modo de gondola, y conforma en su interior una cavidad en la que despues puede alojarse 50 por ejemplo el reductor de grupo conico.According to a conformation of the invention, hydrodynamics particularly advantageous also for large classes of power of a propeller drive installation according to the invention, the housing is closed, in particular molded as a gondola, and inside it forms a cavity in which can then be accommodated 50 for example the conic group reducer.
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A continuacion se explican con mas detalle, en base a un ejemplo de realizacion en la figura, la invention as! como otras conformaciones ventajosas de la invencion conforme a las caracterlsticas de las reivindicaciones dependientes.The following is explained in more detail, based on an example embodiment in the figure, the invention as! as other advantageous conformations of the invention according to the characteristics of the dependent claims.
La figura muestra en una exposition esquematica un corte longitudinal de una instalacion de accionamiento de helice azimutal 1 conforme a la invencion para una instalacion flotante, como p.ej. un barco o una plataforma alejada de la costa. La instalacion de accionamiento de helice 1 comprende un vastago hueco 2, que es sujetado por medio de un cojinete 13 por sus extremos inferior y superior, de forma giratoria alrededor de un eje fundamentalmente vertical, mediante una estructura de sujecion 4 de la instalacion flotante. Unas juntas 14 obturan una camara intermedia 15 entre el vastago 2 y la estructura de sujecion 4 contra una entrada de agua.The figure shows in a schematic exhibition a longitudinal section of an azimuthal propeller 1 installation according to the invention for a floating installation, such as a ship or a platform away from the coast. The propeller drive installation 1 comprises a hollow rod 2, which is held by means of a bearing 13 by its lower and upper ends, rotatably around a fundamentally vertical axis, by means of a clamping structure 4 of the floating installation. Seals 14 seal an intermediate chamber 15 between the rod 2 and the clamping structure 4 against a water inlet.
Una carcasa 5 que favorece el flujo, moldeada a modo de gondola y que conforma en su interior una cavidad 6, esta sujetada de forma solidaria en rotation en el extremo inferior del vastago 2. En la carcasa 5 esta montado un arbol de helice 7 que discurre fundamentalmente en horizontal, de forma que puede girar mediante unos cojinetes 8 alrededor de un eje 9. El eje de giro 3 del vastago 2 y el eje de giro 9 del arbol de helice 7 estan situados de este modo uno sobre el otro fundamentalmente en vertical.A housing 5 that favors the flow, molded as a gondola and that forms a cavity 6 inside it, is fixedly arranged in rotation at the lower end of the rod 2. In the housing 5 a propeller shaft 7 is mounted which runs essentially horizontally, so that it can rotate by means of bearings 8 around an axis 9. The axis of rotation 3 of the rod 2 and the axis of rotation 9 of the propeller shaft 7 are thus positioned one above the other essentially in vertical.
El arbol de helice 7 es guiado por un extremo 10 hasta fuera de la carcasa 5 y presenta, en este extremo 10, una helice 11 fijada al mismo. Un motor electrico 20 acciona el arbol de helice 7, a traves de un arbol de impulsion 21 y un reductor de grupo conico 28, dispuesto en la carcasa 5 y compuesto por un engranaje conico 29a y una corona dentada 29b. El motor electrico 20 esta dispuesto, por fuera del vastago 2 y de la carcasa 5, en el interior de la instalacion flotante. En la instalacion flotante se encuentra un generador no representado con mas detalle u otra fuente de corriente, que alimenta con la corriente necesaria el motor electrico, dado el caso a traves de un convertidor.The propeller shaft 7 is guided by one end 10 to the outside of the housing 5 and has, at this end 10, a propeller 11 fixed thereto. An electric motor 20 drives the propeller shaft 7, through a drive shaft 21 and a conical group reducer 28, arranged in the housing 5 and composed of a conical gear 29a and a toothed crown 29b. The electric motor 20 is arranged, outside the rod 2 and the housing 5, inside the floating installation. In the floating installation there is a generator not shown in more detail or another source of current, which feeds the electric motor with the necessary current, if necessary through a converter.
La instalacion de accionamiento de helice mostrada representa una instalacion propulsora azimutal, que puede girar alrededor de un eje vertical 3, en forma de una helice de timon. A este respecto es posible que el arbol de helice 7 tambien por su segundo extremo o un arbol de helice adicional, que este acoplado a traves de un engranaje adecuado al arbol de helice 7 o al arbol de impulsion 21, sea guiado hasta fuera de la carcasa 5 y all! presente tambien una helice fijada a la misma. Las dos helices pueden girar despues en el mismo sentido o tambien en sentidos contrarios (es decir, contra-rotar).The propeller drive installation shown represents an azimuthal propeller installation, which can rotate about a vertical axis 3, in the form of a helix. In this regard it is possible that the propeller shaft 7 also by its second end or an additional propeller shaft, which is coupled through a suitable gear to the propeller shaft 7 or the drive shaft 21, is guided to the outside of the housing 5 and all! also present a propeller fixed to it. The two helices can then turn in the same direction or also in opposite directions (that is, counter-rotate).
El motor electrico 20 esta conformado como motor electrico anular y presenta un rotor 22 conformado anularmente y un estator 22 conformado anularmente, que abraza el rotor 22 anularmente formando un entrehierro. El rotor 22 y el arbol de impulsion 21 estan montados de forma que pueden girar alrededor del mismo eje 3 que el vastago 2. El rotor 22 esta dispuesto con ello anularmente alrededor del arbol de impulsion 21, es decir, que el arbol de impulsion 21 discurre a lo largo del eje de giro 3 del rotor 22 y con ello incluso a traves del rotor 22, es decir, a traves de la superficie abarcada por el rotor 22.The electric motor 20 is shaped as an annular electric motor and has an annularly shaped rotor 22 and an annularly shaped stator 22, which embraces the rotor 22 annularly forming an air gap. The rotor 22 and the drive shaft 21 are mounted so that they can rotate about the same axis 3 as the rod 2. The rotor 22 is thereby arranged annularly around the drive shaft 21, that is, that the drive shaft 21 it runs along the axis of rotation 3 of the rotor 22 and with it even through the rotor 22, that is, through the surface covered by the rotor 22.
El motor electrico 20 conformado como motor anular presenta, con relation al eje de giro 3 del rotor 22 en direction radial, un diametro A que es claramente mayor que la longitud B del motor en su direccion longitudinal axial.The electric motor 20 formed as an annular motor has, in relation to the axis of rotation 3 of the rotor 22 in the radial direction, a diameter A that is clearly greater than the length B of the motor in its axial longitudinal direction.
El estator anular 23 del motor 20 esta fijado de forma solidaria en rotacion al vastago 2, aqul una estructura soporte 24 (designada tambien con frecuencia como “cono soporte”) en el extremo superior del vastago 2.The annular stator 23 of the motor 20 is fixedly rotatably attached to the rod 2, here a support structure 24 (also often referred to as a "support cone") at the upper end of the rod 2.
La relacion A/B depende fundamentalmente del diametro de la estructura soporte 24, del par a aplicar a la helice 11 y de la multiplication de un engranaje dispuesto dado el caso entre el motor 20 y el arbol de impulsion 21, as! como de la del engranaje conico. Mediante una selection adecuada de un motor anular puede insertarse dado el caso un engranaje dentro de la extension vertical del motor 20, lo que hace posible una adaptation optima del motor 20 al par de giro de accionamiento necesario mediante la helice.The A / B ratio depends fundamentally on the diameter of the support structure 24, the torque to be applied to the propeller 11 and the multiplication of a gear arranged, if necessary, between the motor 20 and the drive shaft 21, as! as of the conical gear. By means of a suitable selection of an annular motor, a gear can be inserted in the vertical extension of the motor 20, which makes possible an optimal adaptation of the motor 20 to the necessary torque of rotation by means of the propeller.
El motor anular 20 esta adaptado en cuanto a su diametro exterior al diametro exterior de la estructura soporte 24 de la instalacion flotante y presenta un diametro exterior, que es aproximadamente igual al diametro exterior de la estructura soporte 24.The annular motor 20 is adapted in terms of its outer diameter to the outer diameter of the support structure 24 of the floating installation and has an outer diameter, which is approximately equal to the outer diameter of the support structure 24.
El rotor anular 22 esta unido de forma solidaria en rotacion, a traves de un soporte de rotor 25 fijado a su lado interior anular, al arbol de impulsion 21. El soporte de rotor 25 soporta de este modo el rotor 22 en su lado exterior. El soporte de rotor 25 comprende un buje 40, una corona soporte circular 41 y un elemento de union 42 para unir el buje 40 a la corona soporte 41. El buje 40 esta unido a este respecto de forma solidaria en rotacion al arbol de impulsion 21 y la corona soporte 41 soporta el rotor 22 en su lado exterior. El elemento de union 42 puede estar conformado por ejemplo como una rueda de disco, a la que se ha proporcionado para ahorrar peso de forma preferida unos orificios o rendijas. Alternativamente el soporte de rotor puede contener tambien un engranaje, p.ej. un engranaje planetario.The annular rotor 22 is connected in a rotational manner, through a rotor support 25 fixed to its inner annular side, to the drive shaft 21. The rotor support 25 thus supports the rotor 22 on its outer side. The rotor support 25 comprises a bushing 40, a circular support crown 41 and a connecting element 42 for joining the bushing 40 to the support crown 41. The bushing 40 is connected in this respect in a rotational manner to the drive shaft 21 and the support crown 41 supports the rotor 22 on its outer side. The connecting element 42 may be shaped, for example, as a disk wheel, which has been provided to preferably save weight holes or slits. Alternatively, the rotor support can also contain a gear, eg a planetary gear.
55
1010
15fifteen
20twenty
2525
3030
Varios cojinetes 26 se usan para el pivotamiento giratorio y la fijacion horizontal y vertical del arbol de impulsion 21, del soporte de rotor 25 y del rotor 22 con relacion al estator 23 y al vastago 2.Several bearings 26 are used for the pivotal pivoting and horizontal and vertical fixing of the drive shaft 21, the rotor support 25 and the rotor 22 in relation to the stator 23 and the rod 2.
El giro de la instalacion de accionamiento de helice alrededor del eje vertical 3 se realiza con ayuda de un motor electrico 30, que tambien esta conformado como un motor electrico anular. El motor 30 presenta un rotor 32 conformado anularmente y un estator 32 conformado anularmente, que abraza el rotor 32 anularmente formando un entrehierreo. El rotor 32 esta montado de forma que puede girar alrededor del mismo eje 3 que el vastago 2, el arbol de impulsion 21 y el rotor 22 del motor electrico 20.The rotation of the propeller drive installation around the vertical axis 3 is carried out with the help of an electric motor 30, which is also shaped as an annular electric motor. The motor 30 has an annularly shaped rotor 32 and an annularly shaped stator 32, which embraces the rotor 32 annularly forming a gap. The rotor 32 is mounted so that it can rotate around the same axis 3 as the rod 2, the drive shaft 21 and the rotor 22 of the electric motor 20.
El motor electrico 30 conformado como motor anular presenta, con relacion al eje de giro 3 del rotor 32 en direccion radial, un diametro C que es claramente mayor que la longitud D del motor en direccion longitudinal axial.The electric motor 30 formed as an annular motor has, in relation to the axis of rotation 3 of the rotor 32 in the radial direction, a diameter C which is clearly greater than the length D of the motor in the axial longitudinal direction.
El estator anular 33 del motor 30 esta unido de forma solidaria en rotacion a una parte estacionaria de la instalacion de accionamiento de helice 1 o de la instalacion flotante, p.ej. de la estructura soporte 4, y el rotor anular 32 del motor 30 esta unido de forma solidaria en rotacion, mediante un soporte de rotor 25 fijado a su lado interior anular y que soporta el rotor 32, al vastago 2, aqul una brida 34 en el extremo superior del vastago 2. La union entre el motor 30 y el vastago 2, respectivamente entre el motor 30 y la instalacion flotante, puede realizarse tambien a traves de un engranaje apropiado. De este modo es posible una adaptacion optima del motor 30 a la velocidad de giro necesaria as! como a los pares necesarios para hacer girar la instalacion de accionamiento de helice.The annular stator 33 of the motor 30 is integrally connected in rotation to a stationary part of the propeller drive installation 1 or of the floating installation, eg of the support structure 4, and the annular rotor 32 of the motor 30 it is joined in a rotational manner, by means of a rotor support 25 fixed to its inner annular side and which supports the rotor 32, to the rod 2, here a flange 34 at the upper end of the rod 2. The joint between the motor 30 and the rod 2, respectively between the motor 30 and the floating installation, can also be carried out through an appropriate gear. In this way an optimal adaptation of the motor 30 to the necessary turning speed is possible! as to the necessary pairs to rotate the propeller drive installation.
Mediante la extension relativamente reducida respectivamente en direccion axial, tanto del motor 20 para accionar la helice 11 como del motor 30 para hacer girar el vastago 2, la altura de montaje de toda la instalacion de accionamiento de helice en la instalacion flotante es muy pequena. El mayor espacio de montaje de los motores 20, 30 que en contrapartida se necesita a causa de la mayor extension radial, no es esencial, ya que se basa en la extension fundamentalmente horizontal de las instalaciones.By means of the relatively reduced extension respectively in the axial direction, both of the motor 20 to drive the propeller 11 and the motor 30 to rotate the rod 2, the mounting height of the entire propeller drive installation in the floating installation is very small. The larger mounting space of the engines 20, 30 that in counterpart is needed because of the greater radial extension, is not essential, since it is based on the fundamentally horizontal extension of the facilities.
Los motor electricos 20, 30 estan conformados de forma preferida como maquinas slncronas con excitacion permanente.The electric motors 20, 30 are preferably formed as synchronous machines with permanent excitation.
A causa de la reducida altura de montaje, la instalacion de accionamiento de helice 1 puede tambien estar dispuesta en una instalacion flotante, de tal modo que puede introducirse y extraerse. En la instalacion flotante puede estar conformada para ello una arqueta, en la que se aloja la instalacion de accionamiento de helice 1 en el estado de introduccion.Because of the reduced mounting height, the propeller drive installation 1 can also be arranged in a floating installation, so that it can be introduced and removed. In the floating installation a cassette can be formed for this purpose, in which the propeller drive installation 1 is housed in the introduction state.
Si se utiliza un motor electrico anular como motor de accionamiento para una instalacion de propulsion azimutal de una instalacion flotante, en particular en union a otro motor electrico anular como accionamiento giratorio para el giro azimutal de la instalacion de propulsion, puede conseguirse de este modo una altura de montaje especialmente reducida de la instalacion de propulsion azimutal en la instalacion flotante. En una medida particular esto es tambien valido para la utilizacion de un motor anular como accionamiento de ajuste electrico para el giro azimutal de instalaciones POD.If an annular electric motor is used as the drive motor for an azimuthal propulsion installation of a floating installation, in particular in conjunction with another annular electric motor as a rotary drive for the azimuthal rotation of the propulsion installation, this can be achieved in this way. Especially reduced mounting height of the azimuthal propulsion installation in the floating installation. To a particular extent this is also valid for the use of an annular motor as an electric adjustment drive for the azimuthal rotation of POD installations.
Claims (7)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008024540A DE102008024540A1 (en) | 2008-05-21 | 2008-05-21 | Low installation height azimuth propeller drive for a floating device |
| DE102008024540 | 2008-05-21 | ||
| PCT/EP2009/055766 WO2009141254A2 (en) | 2008-05-21 | 2009-05-13 | Azimuth propeller drive unit having a low mounting height for a floating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2561041T3 true ES2561041T3 (en) | 2016-02-24 |
Family
ID=41050938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES09749744.0T Active ES2561041T3 (en) | 2008-05-21 | 2009-05-13 | Azimuthal propeller drive installation with reduced mounting height for a floating installation |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2280862B1 (en) |
| DE (1) | DE102008024540A1 (en) |
| DK (1) | DK2280862T3 (en) |
| ES (1) | ES2561041T3 (en) |
| WO (1) | WO2009141254A2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009002263A1 (en) * | 2009-04-07 | 2010-10-14 | Zf Friedrichshafen Ag | Sailboat Drive |
| DE102009002264A1 (en) * | 2009-04-07 | 2010-10-14 | Zf Friedrichshafen Ag | Hybrid drive of a sailing ship |
| DE102012210727A1 (en) | 2012-06-25 | 2014-01-02 | Zf Friedrichshafen Ag | boot drive |
| EP2995550A1 (en) | 2014-09-11 | 2016-03-16 | ABB Technology AG | A propulsion unit |
| NL2018388B1 (en) | 2017-02-16 | 2018-09-06 | Veth Propulsion B V | Thruster for propelling a watercraft |
| CN107235135B (en) * | 2017-04-27 | 2019-04-02 | 武汉船用机械有限责任公司 | A kind of helm of all-direction propeller |
| EP3428055B1 (en) * | 2017-07-11 | 2020-08-26 | Aetc Sapphire | Method and device for determining the direction and the amplitude of a force applied to a propulsion pod of a boat |
| DE102017216818A1 (en) | 2017-09-22 | 2019-03-28 | Siemens Aktiengesellschaft | Azimutverstellung a gondola |
| CN109733581B (en) * | 2018-12-20 | 2020-08-07 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Pod propulsion unit for ship |
| EP4368494A1 (en) | 2022-11-11 | 2024-05-15 | Undine A/S | An electric saildrive |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3013519A (en) * | 1955-02-14 | 1961-12-19 | Reiners Walter | Ship propulsion and steering systems |
| US20010051475A1 (en) * | 1996-11-07 | 2001-12-13 | Reinhold Reuter | Twin-propeller drive for watercraft |
| JP3618560B2 (en) | 1998-11-02 | 2005-02-09 | 新潟原動機株式会社 | Ship propulsion device |
| FI110599B (en) * | 1998-12-22 | 2003-02-28 | Rolls Royce Oy Ab | Swivel propeller assembly for a vessel, offshore structure or equivalent |
| DE20021466U1 (en) * | 2000-12-19 | 2001-05-03 | Schottel GmbH & Co.KG, 56322 Spay | Watercraft with an outboard rudder propeller located beneath its bottom |
| NL1020217C1 (en) * | 2002-03-21 | 2002-05-23 | Wouter Steusel | Yacht, provided with electric propulsion and generator unit comprising tubular casing with retractable steering drum and propeller |
| US6836036B2 (en) * | 2002-06-14 | 2004-12-28 | Dube Jean-Yves | Electric motor with modular stator ring and improved heat dissipation |
| DE10353566A1 (en) | 2003-11-14 | 2005-06-23 | Reinhard Gabriel | jet propulsion |
| DE102005029895A1 (en) * | 2005-06-27 | 2007-01-04 | Siemens Ag | Direct drive for large drives |
-
2008
- 2008-05-21 DE DE102008024540A patent/DE102008024540A1/en not_active Withdrawn
-
2009
- 2009-05-13 ES ES09749744.0T patent/ES2561041T3/en active Active
- 2009-05-13 DK DK09749744.0T patent/DK2280862T3/en active
- 2009-05-13 EP EP09749744.0A patent/EP2280862B1/en not_active Not-in-force
- 2009-05-13 WO PCT/EP2009/055766 patent/WO2009141254A2/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009141254A2 (en) | 2009-11-26 |
| DK2280862T3 (en) | 2016-03-14 |
| DE102008024540A1 (en) | 2009-12-03 |
| EP2280862B1 (en) | 2015-12-23 |
| WO2009141254A3 (en) | 2010-11-25 |
| EP2280862A2 (en) | 2011-02-09 |
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