WO2008077983A1 - Yaw ring with sliding base for wind generators - Google Patents
Yaw ring with sliding base for wind generators Download PDFInfo
- Publication number
- WO2008077983A1 WO2008077983A1 PCT/ES2007/070201 ES2007070201W WO2008077983A1 WO 2008077983 A1 WO2008077983 A1 WO 2008077983A1 ES 2007070201 W ES2007070201 W ES 2007070201W WO 2008077983 A1 WO2008077983 A1 WO 2008077983A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- yaw
- base
- crown
- elements
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0204—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/95—Preventing corrosion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0469—Other heavy metals
- F05C2201/0496—Zinc
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/10—Application independent of particular apparatuses related to size
- F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/31—Wind motors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Definitions
- the object of the present invention is to describe a yaw crown with a sliding base, of those used in wind turbines.
- the present invention describes a yaw crown essentially composed of a toothed crown that rests on steel plates (upper and lower) and an intermediate plate, treated to prevent corrosion of these systems.
- Wind turbines consist of a fixed tower that raises an electric generator connected to a rotor by mechanical means on the ground.
- the rotor is formed by a hub or hub that joins one or more blades that are responsible for transforming the kinetic energy of the wind into rotational movement of the rotor.
- the generator is placed on a frame, which is capable of having movement with respect to the tower that supports it, so that it allows the rotor to face the wind.
- An orientation mode can be freeing the rotation of the frame (which is part of what is usually called the wind turbine gondola, oriented to leeward) that would act as a weather vane.
- a mechanical system is usually used to move the frame with the rotor to a desired orientation (windward orientation).
- windmill yaw crowns are composed of a single piece, which withstands great stresses that can damage it. These damages involve repairs that are going to be less complex, such as those described in the PCT with publication number WO2004 / 001223.
- Wind turbine maintenance is greatly simplified given its modular concept.
- the winking crown is essentially formed by a toothed crown that rests on a set formed by:
- a fixed plate (preferably lower) of stainless steel with at least 2 millimeters thick.
- a yaw base used as a friction plate between the fixed plates.
- the yaw base has two entrusted uses: first, it works as a sliding base when the wind turbine is in full yaw movement; secondly, it acts as a brake disc when the wind turbine is held.
- the characteristics that this sliding yaw base must have are, essentially, a low manufacturing cost, have a smooth surface and be resistant to corrosion. That is why its construction has been specified in a commonly used steel such as S355 and no expensive and technologically superior treatments, such as those based on tungsten, have been used. On the other hand, and due to the same manufacturing requirements, the use of grease and normal paint has been discarded.
- the sliding base is between two fixed stainless steel plates.
- the bearings located between both mentioned plates facilitate the movement of the wind turbine during the yaw.
- the yaw base is treated with a layer of zinc that, at the same time, acts as a layer of adaptation of electrical potentials between the different steels, also managing to solve the problems of corrosion and wear due to the difference of potential between different materials.
- the upper and lower plates are mechanically attached to the yaw base.
- the lower plate is mechanically joined, by its external diameter and between them, to the upper flange of the tower and to the yaw base; in its internal diameter it is attached to the radial bearings and to the yaw base.
- the top plate is located between the yaw base and the toothed crown. Like the lower plate, it is fixed in position between the yaw base and the upper edge of the tower, an integral part of the generator.
- the upper and lower plates are fixed in their radial and tangential directions due to friction between their elements.
- the zinc plate used as anti-corrosion treatment significantly increases the friction between the yaw base and the fixed elements, likewise, this friction is greater than the friction between the yaw base and the bearings, so there is no movement between the base and the plates, since the movement occurs in the bearings.
- the upper and lower plates are divided into segments every 45 °, with a total of 8 segments in each upper and lower plate. Through this we managed to reduce the overall cost and easier maintenance and assembly, as well as greater ease of transport.
- FIG. 1 shows a partial and perspective view of the sliding base yaw crown object of the present invention patent. Also, in detail (a) the main constituent elements of the present invention are appreciated.
- the winding crown with a sliding base in wind turbines object of the present invention patent, is constituted by the following elements: - A bottom plate (1), essentially circular, divided into segments of 45 °, adjacent narrows, up to a total of 8 for a 360 ° plate, provided with a few second guide holes (11).
- (7 and 8) are preferably linear ridamientos.
- a toothed crown (5) provided with first guide holes (51), also being fixed by their corresponding bolts.
- the appropriate position will be decided by the coincidence of the position of the guide holes (11, 21, 31 and 51), and the insertion of the corresponding director bushings, one per hole.
- the lower plate (1) is fixed between the upper flanges of the tower (6) and the yaw base (2).
- the upper plate (3) is fixed between the yaw base (2) and the crown gear (5).
- the lower fixed plate (1) is such that the friction between the lower fixed plate (1) and the yaw base (2) is greater than the friction between the lower fixed plate (l) and the linear bearings (8).
- the upper fixed plate (3) is such that the friction between the upper fixed plate (3) and the yaw base (2) is greater than the friction between the upper fixed plate (3) and the linear bearings (7).
- the radial bearing (4) is fixed to the yaw base (2) with a radial bolt (10) and / or adhesive.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Wind Motors (AREA)
Abstract
Description
CORONA DE GUIÑADA CON BASE DESLIZANTE EN AEROGENERADORES WINNING CROWN WITH SLIDING BASE IN AEROGENERATORS
OBJETO DE LA INVENCIÓN.OBJECT OF THE INVENTION
La presente invención tiene por objeto describir una corona de guiñada con base deslizante, de las que se usan en los aerogeneradores .The object of the present invention is to describe a yaw crown with a sliding base, of those used in wind turbines.
Más concretamente, la presente invención describe una corona de guiñada esencialmente compuesta por una corona dentada que reposa sobre sendas placas de acero (superior e inferior) y una placa intermedia, tratada para evitar la corrosión propia de estos sistemas.More specifically, the present invention describes a yaw crown essentially composed of a toothed crown that rests on steel plates (upper and lower) and an intermediate plate, treated to prevent corrosion of these systems.
ANTECEDENTES DE LA INVENCIÓN.BACKGROUND OF THE INVENTION
Los aerogeneradores consisten en una torre fija que eleva sobre el suelo un generador eléctrico conectado a un rotor por medios mecánicos. El rotor está conformado por un buje o cubo que une una o varias palas que son las encargadas de transformar la energía cinética del viento en movimiento de rotación del rotor. Generalmente el generador está colocado sobre un bastidor, el cual es capaz de tener movimiento respecto a la torre que lo sustenta, de modo que permita orientarse al rotor en dirección del viento. Un modo de orientación puede ser dejando libre el giro del bastidor (el cual forma parte de lo que se suele llamar la góndola del aerogenerador, orientada a sotavento) que actuaría como una veleta. Sin embargo, para conseguir un mejor funcionamiento, se suele usar un sistema mecánico para mover el bastidor con el rotor a una orientación deseada (orientación a barlovento) . Este giro en un plano horizontal del bastidor se llama "guiñada" . Los sistemas mecánicos para orientar un aerogenerador con el viento consisten generalmente en una corona dentada, normalmente solidaria a la torre, y un motor normalmente solidario al bastidor con el generador y que hace girar el bastidor por medio de una rueda dentada engranada con la corona dentada. Generalmente, las coronas de guiñada en aerogeneradores están compuestas de una sola pieza, la cual soporta grandes tensiones que pueden llegar a dañarla. Estos daños implican reparaciones irás o menos complejas, como las descritas en la PCT con numero de publicación WO2004/001223. Mediante el sistema descrito en el presente documento, se simplifica notablemente el mantenimiento de los aerogeneradores dado su concepto modular.Wind turbines consist of a fixed tower that raises an electric generator connected to a rotor by mechanical means on the ground. The rotor is formed by a hub or hub that joins one or more blades that are responsible for transforming the kinetic energy of the wind into rotational movement of the rotor. Generally the generator is placed on a frame, which is capable of having movement with respect to the tower that supports it, so that it allows the rotor to face the wind. An orientation mode can be freeing the rotation of the frame (which is part of what is usually called the wind turbine gondola, oriented to leeward) that would act as a weather vane. However, to achieve better performance, a mechanical system is usually used to move the frame with the rotor to a desired orientation (windward orientation). This rotation in a horizontal plane of the frame is called "yaw". The mechanical systems for orienting a wind turbine with the wind generally consist of a toothed crown, normally integral to the tower, and an engine normally attached to the frame with the generator and which rotates the frame by means of a cogwheel meshed with the crown gear. . Generally, windmill yaw crowns are composed of a single piece, which withstands great stresses that can damage it. These damages involve repairs that are going to be less complex, such as those described in the PCT with publication number WO2004 / 001223. Through the system described in this document, Wind turbine maintenance is greatly simplified given its modular concept.
Por otro lado, el uso de frenos activos y pasivos como los descritos en la patente europea con numero de publicación EP1571334 implican que entre los elementos que forman el sistema de guiñada deba existir una fuerte fricción, que en las coronas conocidas en el actual estado de la técnica no se alcanzaba.On the other hand, the use of active and passive brakes such as those described in the European patent with publication number EP1571334 imply that among the elements that form the yaw system there must be a strong friction, which in the crowns known in the current state of The technique was not achieved.
DESCRIPCIÓN DE LA INVENCIÓN.DESCRIPTION OF THE INVENTION
Para paliar, o en su caso eliminar los problemas arriba mencionados se presenta esta nueva corona de guiñada en aerogeneradores con base deslizante, objeto de la presente patente de invención . La corona de guiñado está esencialmente formada por una corona dentada que reposa sobre un conjunto formado por:To alleviate, or if necessary eliminate the above-mentioned problems, this new crown of yaw is presented in wind turbines with sliding base, object of the present invention patent. The winking crown is essentially formed by a toothed crown that rests on a set formed by:
- Una placa fija (preferentemente superior) de acero inoxidable con al menos 2 milímetros de espesor.- A fixed (preferably upper) stainless steel plate with at least 2 millimeters thick.
- Una placa fija (preferentemente inferior) de acero inoxidable con al menos 2 milímetros de espesor.- A fixed plate (preferably lower) of stainless steel with at least 2 millimeters thick.
- Una base de guiñada, usada como placa de fricción entre las placas fijas.- A yaw base, used as a friction plate between the fixed plates.
- Unos elementos móviles (preferentemente rodamientos radiales y lineales), situados entre los elementos fijos y la base de guiñada.- Mobile elements (preferably radial and linear bearings), located between the fixed elements and the yaw base.
La base de guiñada tiene dos usos encomendados: en primer lugar, trabaja como base deslizante cuando el aerogenerador está en pleno movimiento de guiñado; en segundo lugar actúa como disco de freno cuando el aerogenerador se encuentra retenido. Las características que ha de tener esta base de guiñada deslizante son, esencialmente, un coste de fabricación bajo, tener una superficie lisa y ser resistente a la corrosión. Es por ello que se ha especificado su construcción en un acero de uso común como el S355 y no se han utilizado tratamientos caros y tecnológicamente superiores, como los basados en el tungsteno. Por otro lado, y por los mismos requerimientos de fabricación se han desechado el uso de grasas y de pintura normal .The yaw base has two entrusted uses: first, it works as a sliding base when the wind turbine is in full yaw movement; secondly, it acts as a brake disc when the wind turbine is held. The characteristics that this sliding yaw base must have are, essentially, a low manufacturing cost, have a smooth surface and be resistant to corrosion. That is why its construction has been specified in a commonly used steel such as S355 and no expensive and technologically superior treatments, such as those based on tungsten, have been used. On the other hand, and due to the same manufacturing requirements, the use of grease and normal paint has been discarded.
Con los requerimientos mencionados de bajo coste, superficie libre de corrosión, una alta resistencia al desgaste y una baja resistencia al rozamiento en la superficie, ha sido desarrollada la corona de guiñada con base deslizante, objeto de la presente patente de invención.With the aforementioned requirements of low cost, corrosion free surface, high wear resistance and low friction resistance on the surface, the sliding base yaw crown has been developed, object of the present invention patent.
La base deslizante se halla comprendida entre sendas placas fijas de acero inoxidable. Los rodamientos situados entre ambas mencionadas placas facilitan el movimiento del aerogenerador durante la guiñada. Para evitar la corrosión, la base de guiñada se halla tratada con una capa de zinc que, al mismo tiempo, actúa como una capa de adaptación de potenciales eléctricos entre los distintos aceros, consiguiendo igualmente solucionar los problemas de corrosión y desgaste debidos a la diferencia de potencial entre distintos materiales .The sliding base is between two fixed stainless steel plates. The bearings located between both mentioned plates facilitate the movement of the wind turbine during the yaw. To prevent corrosion, the yaw base is treated with a layer of zinc that, at the same time, acts as a layer of adaptation of electrical potentials between the different steels, also managing to solve the problems of corrosion and wear due to the difference of potential between different materials.
Las placas superior e inferior se encuentran mecánicamente unidas a la base de guiñada. La placa inferior está mecánicamente unida, por su diámetro externo y entre ambas, al reborde superior de la torre y a la base de guiñada; en su diámetro interno está unido a los rodamientos radiales y a la base de guiñada.The upper and lower plates are mechanically attached to the yaw base. The lower plate is mechanically joined, by its external diameter and between them, to the upper flange of the tower and to the yaw base; in its internal diameter it is attached to the radial bearings and to the yaw base.
La placa superior se encuentra situada entre la base de guiñada y la corona dentada. Al igual que la placa inferior, se encuentra fijada en su posición entre la base de guiñada y el borde superior de la torre, parte integrante del generador.The top plate is located between the yaw base and the toothed crown. Like the lower plate, it is fixed in position between the yaw base and the upper edge of the tower, an integral part of the generator.
Las placas superior e inferior están fijadas en sus direcciones radial y tangencial debido a la fricción entre sus elementos. La placa de zinc usada como tratamiento anticorrosión incrementa notablemente la fricción entre la base de guiñada y los elementos fijos, asimismo, esta fricción es mayor que la fricción entre la base de guiñada y los rodamientos, con lo que no existe ningún tipo de movimiento entre la base y las placas, ya que el movimiento se produce en los rodamientos.The upper and lower plates are fixed in their radial and tangential directions due to friction between their elements. The zinc plate used as anti-corrosion treatment significantly increases the friction between the yaw base and the fixed elements, likewise, this friction is greater than the friction between the yaw base and the bearings, so there is no movement between the base and the plates, since the movement occurs in the bearings.
Las placas superior e inferior están divididas en segmentos cada 45°, con lo que en total tenemos 8 segmentos en cada placa superior e inferior. Mediante esto conseguimos reducir el costo general y un mantenimiento y ensamblaje más sencillo, asi como mayor facilidad de transporte .The upper and lower plates are divided into segments every 45 °, with a total of 8 segments in each upper and lower plate. Through this we managed to reduce the overall cost and easier maintenance and assembly, as well as greater ease of transport.
BREVE DESCRIPCIÓN DE LOS DIBUJOS.BRIEF DESCRIPTION OF THE DRAWINGS.
A continuación se pasa a describir de manera muy breve una serie de dibujos que ayudan a comprender mejor la invención y que se relacionan expresamente con una realización de dicha invención que se presenta como un ejemplo no limitativo de ésta.A series of drawings that help to better understand the invention and that expressly relate to an embodiment of said invention which is described below is very briefly described below. presented as a non-limiting example of this.
- En la figura 1 se puede observar una vista parcial y en perspectiva de la corona de guiñada con base deslizante objeto de la presente patente de invención. Asimismo, en el detalle (a) se aprecian los principales elementos constitutivos de la presente invención.- Figure 1 shows a partial and perspective view of the sliding base yaw crown object of the present invention patent. Also, in detail (a) the main constituent elements of the present invention are appreciated.
REALIZACIÓN PREFERENTE DE LA INVENCIÓN.PREFERRED EMBODIMENT OF THE INVENTION.
Como es posible observar en la figura adjunta, la corona de guiñada en con base deslizante en aerogeneradores, objeto de la presente patente de invención, está constituida por los siguientes elementos : - Una placa inferior (1), esencialmente circular, divida en segmentos de 45°, adyacentes estre si, hasta un total de 8 para una placa de 360°, provista de unos segundos orificios de guiado (11).As it is possible to observe in the attached figure, the winding crown with a sliding base in wind turbines, object of the present invention patent, is constituted by the following elements: - A bottom plate (1), essentially circular, divided into segments of 45 °, adjacent narrows, up to a total of 8 for a 360 ° plate, provided with a few second guide holes (11).
- Una base de guiñada (2) provista igualmente de unos terceros orificios de guiado (21).- A yaw base (2) also provided with third guide holes (21).
- Una placa superior (3), provista de unos cuartos orificios de guiado (31) .- An upper plate (3), provided with fourth guide holes (31).
- Los elementos móviles (4, 7 y 8) donde el elemento móvil (4) es preferentemente un rodamiento radial, y los elementos móviles- The mobile elements (4, 7 and 8) where the mobile element (4) is preferably a radial bearing, and the mobile elements
(7 y 8) son preferiblemente ridamientos lineales.(7 and 8) are preferably linear ridamientos.
- Una corona dentada (5) provista de unos primeros orificios de guiado (51), estando además fijada por sus correspondientes pernos .- A toothed crown (5) provided with first guide holes (51), also being fixed by their corresponding bolts.
En el proceso de ensamblaje, la posición adecuada será decidida por la coincidencia de posición de los orificios de guiado (11, 21, 31 y 51), y la inserción de los correspondientes bujes directores, uno por orificio.In the assembly process, the appropriate position will be decided by the coincidence of the position of the guide holes (11, 21, 31 and 51), and the insertion of the corresponding director bushings, one per hole.
La placa inferior (1) está fijada entre los rebordes superiores de la torre (6) y la base de guiñada (2) . La placa superior (3) está fijada entre la base de guiñada (2) y la corona dentada (5) . La placa fija inferior (1) es tal que la fricción entre la placa fija inferior (1) y la base de guiñada (2) es mayor que la fricción entre la placa fija inferior(l) y los rodamientos lineales (8). La placa fija superior (3) es tal que la fricción entre la placa fija superior (3) y la base de guiñada (2) es mayor que la fricción entre la placa fija superior (3) y los rodamientos lineales (7). El rodamiento radial (4) esta fijado a la base de guiñada (2) con un perno radial (10) y/o adhesivo. Asi mismo, el movimiento tangencial de la corona de guiñada es evitado gracias al material de parada (9) el cual esta integrado en la base de guiñada (2) entre cada uno de los elementos móviles radiales (4) . El movimiento vertical de los rodamientos radiales (4) es evitado por medio de las placas fijas (1 Y 3) .The lower plate (1) is fixed between the upper flanges of the tower (6) and the yaw base (2). The upper plate (3) is fixed between the yaw base (2) and the crown gear (5). The lower fixed plate (1) is such that the friction between the lower fixed plate (1) and the yaw base (2) is greater than the friction between the lower fixed plate (l) and the linear bearings (8). The upper fixed plate (3) is such that the friction between the upper fixed plate (3) and the yaw base (2) is greater than the friction between the upper fixed plate (3) and the linear bearings (7). The radial bearing (4) is fixed to the yaw base (2) with a radial bolt (10) and / or adhesive. Likewise, the tangential movement of the yaw crown is avoided thanks to the stop material (9) which is integrated in the yaw base (2) between each of the radial moving elements (4). The vertical movement of the radial bearings (4) is avoided by means of the fixed plates (1 and 3).
Una vez descrita suficientemente la naturaleza de la presente invención, solamente queda por añadir que la invención puede sufrir ciertas variaciones en forma y materiales, siempre y cuando dichas alteraciones no modifiquen sustancialmente las características que se reivindican a continuación. Once the nature of the present invention has been sufficiently described, it only remains to be added that the invention may undergo certain variations in form and materials, as long as said alterations do not substantially modify the characteristics claimed below.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200603267A ES2326852B1 (en) | 2006-12-26 | 2006-12-26 | WROWN CROWN WITH SLIDING BASE IN AEROGENERATORS. |
| ESP200603267 | 2006-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008077983A1 true WO2008077983A1 (en) | 2008-07-03 |
Family
ID=39562129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2007/070201 Ceased WO2008077983A1 (en) | 2006-12-26 | 2007-12-05 | Yaw ring with sliding base for wind generators |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES2326852B1 (en) |
| WO (1) | WO2008077983A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2273104A2 (en) | 2009-06-30 | 2011-01-12 | Vestas Wind Systems A/S | A wind turbine with improved yaw control |
| CN102380485A (en) * | 2010-08-31 | 2012-03-21 | 通用电气公司 | Yaw bearing cleaning assembly for wind turbine |
| DK201670168A1 (en) * | 2016-03-23 | 2017-01-16 | Envision Energy Denmark Aps | Wind turbine comprising a yaw bearing system |
| DK201670170A1 (en) * | 2016-03-23 | 2017-10-02 | Envision Energy Denmark Aps | Wind turbine comprising a yaw bearing system |
| CN110701006A (en) * | 2018-07-09 | 2020-01-17 | 西门子歌美飒可再生能源公司 | Yaw bearing arrangement structure |
| CN110701007A (en) * | 2018-07-10 | 2020-01-17 | 西门子歌美飒可再生能源公司 | Wind turbine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3660302B1 (en) | 2018-11-29 | 2023-01-04 | General Electric Renovables España S.L. | Yaw system for a wind turbine |
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|---|---|---|---|---|
| US3729292A (en) * | 1968-02-24 | 1973-04-24 | Duria Werk Kempf Karl Kg | Anti-friction bearing pad |
| FR2750460A1 (en) * | 1996-07-01 | 1998-01-02 | Vergnet | IMPROVEMENT TO AN AERO-GENERATOR DEVICE |
| US20030039419A1 (en) * | 1999-12-24 | 2003-02-27 | Aloys Wobben | Plain bearing and wind energy unit with said bearing |
| EP1367273A2 (en) * | 2002-05-24 | 2003-12-03 | Ab Skf | Sliding bearing for radial and axial loads |
| EP1406012A1 (en) * | 2002-10-04 | 2004-04-07 | Friedrich Prof. Dr.-Ing. Klinger | Bearing and braking system for the nacelle of a wind turbine |
| US20050196280A1 (en) * | 2004-03-04 | 2005-09-08 | Gonzalez Jose I.L. | Wind turbine yawing system, wind turbine and yawing process |
-
2006
- 2006-12-26 ES ES200603267A patent/ES2326852B1/en not_active Expired - Fee Related
-
2007
- 2007-12-05 WO PCT/ES2007/070201 patent/WO2008077983A1/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3729292A (en) * | 1968-02-24 | 1973-04-24 | Duria Werk Kempf Karl Kg | Anti-friction bearing pad |
| FR2750460A1 (en) * | 1996-07-01 | 1998-01-02 | Vergnet | IMPROVEMENT TO AN AERO-GENERATOR DEVICE |
| US20030039419A1 (en) * | 1999-12-24 | 2003-02-27 | Aloys Wobben | Plain bearing and wind energy unit with said bearing |
| EP1367273A2 (en) * | 2002-05-24 | 2003-12-03 | Ab Skf | Sliding bearing for radial and axial loads |
| EP1406012A1 (en) * | 2002-10-04 | 2004-04-07 | Friedrich Prof. Dr.-Ing. Klinger | Bearing and braking system for the nacelle of a wind turbine |
| US20050196280A1 (en) * | 2004-03-04 | 2005-09-08 | Gonzalez Jose I.L. | Wind turbine yawing system, wind turbine and yawing process |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2273104A2 (en) | 2009-06-30 | 2011-01-12 | Vestas Wind Systems A/S | A wind turbine with improved yaw control |
| EP2549099A2 (en) | 2009-06-30 | 2013-01-23 | Vestas Wind Systems A/S | A wind turbine with improved yaw control |
| CN102380485A (en) * | 2010-08-31 | 2012-03-21 | 通用电气公司 | Yaw bearing cleaning assembly for wind turbine |
| CN109072885A (en) * | 2016-03-23 | 2018-12-21 | 远景能源（江苏）有限公司 | Wind turbine including Yaw bearing system |
| DK201670170A1 (en) * | 2016-03-23 | 2017-10-02 | Envision Energy Denmark Aps | Wind turbine comprising a yaw bearing system |
| DK179077B1 (en) * | 2016-03-23 | 2017-10-09 | Envision Energy Denmark Aps | Wind turbine comprising a yaw bearing system |
| DK201670168A1 (en) * | 2016-03-23 | 2017-01-16 | Envision Energy Denmark Aps | Wind turbine comprising a yaw bearing system |
| US10781797B2 (en) | 2016-03-23 | 2020-09-22 | Envision Energy (Denmark) Aps | Wind turbine comprising a yaw bearing system |
| CN110701006A (en) * | 2018-07-09 | 2020-01-17 | 西门子歌美飒可再生能源公司 | Yaw bearing arrangement structure |
| US10900515B2 (en) | 2018-07-09 | 2021-01-26 | Siemens Gamesa Renewable Energy A/S | Yaw bearing arrangement |
| CN110701007A (en) * | 2018-07-10 | 2020-01-17 | 西门子歌美飒可再生能源公司 | Wind turbine |
| US10954997B2 (en) | 2018-07-10 | 2021-03-23 | Siemens Gamesa Renewable Energy A/S | Wind turbine |
| CN110701007B (en) * | 2018-07-10 | 2021-08-31 | 西门子歌美飒可再生能源公司 | Wind turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2326852A1 (en) | 2009-10-20 |
| ES2326852B1 (en) | 2010-07-15 |
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