ES2364258A1 - System for connecting wind generator blade sections - Google Patents
System for connecting wind generator blade sections Download PDFInfo
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- ES2364258A1 ES2364258A1 ES200800641A ES200800641A ES2364258A1 ES 2364258 A1 ES2364258 A1 ES 2364258A1 ES 200800641 A ES200800641 A ES 200800641A ES 200800641 A ES200800641 A ES 200800641A ES 2364258 A1 ES2364258 A1 ES 2364258A1
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- sections
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- skins
- longitudinal
- wind turbine
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- 230000015572 biosynthetic process Effects 0.000 claims abstract description 7
- 238000005192 partition Methods 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims 1
- 230000008719 thickening Effects 0.000 claims 1
- 230000009471 action Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000010348 incorporation Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
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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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
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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
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05B2240/302—Segmented or sectional blades
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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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
Description
Sistema de unión de tramos de palas de aerogenerador.Blade section joining system wind turbine
La presente invención está relacionada con las palas de aerogenerador que se forman por composición mediante dos o más tramos longitudinales, con el fin de facilitar la construcción y fundamentalmente el transporte por carretera, proponiendo un sistema de unión de los tramos en la formación constructiva de las palas, con el cual se logran unas características ventajosas para dicha función.The present invention is related to wind turbine blades that are formed by composition by two or more longitudinal sections, in order to facilitate construction and fundamentally road transport, proposing a system of union of the sections in the constructive formation of the blades, with which advantageous characteristics are achieved for said function.
La demanda mundial de energías renovables, para hacer frente al cambio climático y mantener una expectativa de producción energética sin dependencia de los recursos naturales agotables, implica de una manera muy relevante a la energía eólica, la cual mayoritariamente se desarrolla mediante aerogeneradores que se accionan por un rotor de palas captador del viento.The global demand for renewable energy, for cope with climate change and maintain an expectation of energy production without dependence on natural resources exhaustable, it implies in a very relevant way to wind energy, which is mostly developed by wind turbines that they are driven by a rotor of wind catching blades.
El desarrollo de los aerogeneradores y su aplicación a la producción energética mediante aprovechamiento del viento, requiere sin embargo cada vez aerogeneradores de mayor potencia nominal, más eficientes y de inferior costo por Kilovatio de la energía que se produce.The development of wind turbines and their application to energy production through the use of wind, however, requires more and more wind turbines rated power, more efficient and lower cost per Kilowatt of the energy that is produced.
En la generación de energía mediante dichos aerogeneradores es fundamental, entre otros aspectos, la superficie de barrido de las palas del rotor que recibe la acción del viento, de manera que uno de los factores para aumentar la potencia de generación energética es el aumento del tamaño de las palas captadoras de la acción del viento.In the generation of energy through said wind turbines is essential, among other aspects, the surface of sweeping the blades of the rotor that receives the action of the wind, so that one of the factors to increase the power of energy generation is the increase in the size of the blades sensors of wind action.
Superar una medida del tamaño de las palas de los aerogeneradores entraña, sin embargo, una serie de problemas coligados, debido a las dificultades que surgen, tanto en el aspecto del transporte, por los vehículos existentes y la normativa de la circulación por carretera, como en el aspecto del propio montaje constructivo del aerogenerador, por los tipos de grúas que deben ser empleados.Exceed a measure of the size of the blades of wind turbines, however, entails a series of problems attached, due to the difficulties that arise, both in appearance of transport, by existing vehicles and the regulations of the road traffic, as in the appearance of the assembly itself construction of the wind turbine, for the types of cranes that should be employees.
En efecto, a partir de los 35 metros de longitud las palas de aerogenerador presentan grandes dificultades de transporte, ya que precisan de medios de transporte especiales, que son muy costosos.Indeed, from 35 meters in length wind turbine blades have great difficulties transport, since they require special means of transport, which they are very expensive.
Para solucionar ese problema es ya conocida la solución de formar las palas mediante tramos longitudinales, los cuales pueden ser transportados independientemente, para su unión en el lugar de instalación del aerogenerador e incluso en el montaje constructivo de éste.To solve this problem, the solution of forming the blades by longitudinal sections, the which can be transported independently, for their union in the installation site of the wind turbine and even in the assembly constructive of this one.
Esto supone una ventaja para las grandes palas (entre 40 y 60 metros de longitud) que ya demanda el sector eólico, pero también para las palas más tradicionales (entre 30 y 40 metros de longitud), porque al poder hacerse en tramos de entre 15 y 20 metros de longitud, se pueden transportar con medios normales, consiguiéndose una reducción del costo de transporte que es ventajosamente superior al costo de formar los tramos independientes y unir éstos en el montaje constructivo de las palas.This is an advantage for large shovels. (between 40 and 60 meters in length) already demanded by the wind sector, but also for more traditional shovels (between 30 and 40 meters in length), because it can be done in sections between 15 and 20 meters in length, can be transported with normal means, getting a reduction in the cost of transportation that is advantageously higher than the cost of forming the independent sections and join these in the constructive assembly of the blades.
En ese sentido se han desarrollado diversos sistemas para unir los tramos componentes de las palas de aerogenerador que se forman por la unión de tramos longitudinales, como por ejemplo la solución de la Patente ES 9901177, pero las soluciones conocidas en tal sentido adolecen en general de deficiencias relativas a dificultad del montaje y a la eficiencia del amarre que determina la unión entre los tramos.In that sense, various systems to join the component sections of the blades wind turbines that are formed by the union of longitudinal sections, such as the solution of the ES Patent 9901177, but the known solutions in this regard generally suffer from deficiencies related to difficulty of assembly and efficiency of the mooring that determines the union between the sections.
De acuerdo con la invención se propone un sistema para la unión entre los tramos componentes de las palas de aerogenerador, con unas características que hacen ventajosa la realización del montaje y la efectividad de la unión.According to the invention, a system for the union between the component sections of the blades wind turbine, with characteristics that make the assembly and effectiveness of the union.
El sistema de la invención se halla previsto fundamentalmente para palas estructuralmente formadas por unas pieles laterales externas laminadas por capas de fibras sintéticas, en disposición sobre una estructura resistente interior formada por unos largueros a modo de tabiques longitudinales, determinándose el perfil aerodinámico de la pala mediante las pieles externas, las cuales se pueden prolongar definiendo ellas mismas el borde de salida del perfil aerodinámico, mientras que la formación del borde de entrada de dicho perfil aerodinámico se prevé mediante una pieza complementaria laminada a su vez con fibras sintéticas.The system of the invention is provided mainly for shovels structurally formed by outer side skins laminated by synthetic fiber layers, in arrangement on an inner resistant structure formed by some stringers as longitudinal partitions, determining the aerodynamic profile of the blade using the outer skins, the which can be prolonged defining themselves the edge of aerodynamic profile output while edge formation of entry of said aerodynamic profile is provided by a piece complementary laminated in turn with synthetic fibers.
En la unión de los tramos componentes de las palas se dispone un anillo que determina en sus frentes unos canales en los que encajan con su borde extremo los largueros estructurales interiores de los tramos de pala, así como los bordes de las pieles externas, las cuales en la zona comprendida entre los largueros estructurales interiores se hallan formadas con un tramo regruesado hacia el interior, por dentro del cual, así como por los largueros estructurales se definen unos orificios longitudinales que desembocan en respectivos huecos de las paredes correspondientes, estableciéndose el amarre de la unión mediante vástagos que se insertan por los orificios longitudinales enfrentados de las pieles y de los largueros estructurales de los tramos a unir, pasando a través del anillo intermedio de la unión, los cuales vástagos se unen en acoplamiento roscado de tensión respecto de sendos elementos extremos que se alojan en los huecos en los que desembocan los orificios longitudinales.In the union of the component sections of the shovels there is a ring that determines channels on their foreheads in which the structural stringers fit with its extreme edge interiors of the spade sections, as well as the edges of the skins external, which in the area between the stringers Structural interiors are formed with a returned section inwards, inside which, as well as by the stringers structural longitudinal holes are defined that they flow into respective holes in the corresponding walls, establishing the tie of the union by means of stems that inserted through the opposite longitudinal holes of the skins and of the structural stringers of the sections to join, moving to through the intermediate ring of the junction, which stems are join in threaded tension coupling with respect to two elements extremes that are housed in the gaps where the longitudinal holes.
En los tramos que se unen los huecos en los que desembocan lo orificios longitudinales se hallan realizados perpendicularmente desde la parte interior de las paredes correspondientes, sin pasar hasta la parte exterior, siendo dichos huecos de forma cilíndrica en uno de los tramos de la unión, para encajar en ellos un correspondiente elemento cilíndrico provisto con un orificio transversal roscado, respecto del cual se acopla a rosca el vástago respectivo del amarre de la unión de los tramos, mientras que en el otro tramo de la unión los huecos son oblongos, estableciéndose en ellos la incorporación de una tuerca sobre el extremo del vástago correspondiente, para realizar la actuación sobre dicha tuerca a través de la embocadura del hueco oblongo respectivo.In the sections that join the gaps in which they open the longitudinal holes are made perpendicularly from the inside of the walls corresponding, without going to the outside, being said cylindrical gaps in one of the sections of the union, to fit into them a corresponding cylindrical element provided with a threaded transverse hole, with respect to which it is threaded the respective rod of the tie of the union of the sections, while that in the other section of the union the gaps are oblong, establishing in them the incorporation of a nut on the end of the corresponding stem, to perform the action on said nut through the mouth of the oblong hole respective.
Se obtiene así una amarre de unión entre los tramos de pala que permite determinar una sujeción resistente con total precisión mediante el aprieto de las tuercas que se disponen sobre los vástagos de la unión, siendo muy fácil de realizar el montaje, ya que los vástagos de amarre se incorporan antes del acoplamiento en uno de los tramos a unir, de manera que luego solo es necesario acoplar en inserción el segundo tramo y apretar las tuercas de tensión del amarre sobre el segundo extremo de los vástagos de amarre.This results in a tie up between the spade sections that allow to determine a resistant support with total precision by tightening the nuts that are arranged on the stems of the union, being very easy to perform the assembly, since the mooring rods are incorporated before coupling in one of the sections to be joined, so that then only it is necessary to insert the second section in insertion and tighten the tension nuts of the mooring on the second end of the tie rods.
La incorporación del anillo intermedio en la unión, determina además una protección que impide el desfibrado de las capas de fibra en el borde de unión de las pieles externas de los tramos de pala, lo cual evita que en el trabajo de aplicación de la pala formada la fuerza del viento pueda causar un deterioro progresivo de desfibrado de las pieles que forman el perfil aerodinámico.The incorporation of the intermediate ring in the union, also determines a protection that prevents the defibration of the fiber layers at the joining edge of the outer skins of the spade sections, which prevents the application work of the blade formed the force of the wind may cause deterioration progressive defibration of the skins that form the profile aerodynamic.
Por otro lado, la realización de los huecos para el alojamiento de los elementos de acoplamiento extremo de los vástagos de amarre de la unión, por la parte interior de las paredes de los tramos y sin sobrepasar al exterior, supone que dichas paredes de los tramos que se unen resulten poco debilitadas, y además la superficie exterior permanece continua, de forma que no resulta afectada la eficiencia del perfil aerodinámico para el rendimiento de la pala.On the other hand, the realization of the gaps for the housing of the end coupling elements of the tie rods of the union, on the inside of the walls of the sections and without exceeding abroad, supposes that walls of the sections that join are slightly weakened, and in addition the outer surface remains continuous, so that no the efficiency of the aerodynamic profile for the blade performance.
Por todo ello, el sistema de la invención resulta de unas características ciertamente ventajosas, adquiriendo vida propia y carácter preferente para la función de amarre de los tramos componentes de palas de aerogenerador, frente a las soluciones ya conocidas de dicha función.Therefore, the system of the invention results of certain advantageous characteristics, acquiring own life and preferential character for the mooring function of wind turbine blade component sections, compared to known solutions of this function.
La figura 1 muestra en perspectiva explosionada el conjunto estructural de una pala de aerogenerador que se compone de dos tramos longitudinales, con unión de dichos tramos según la invención.Figure 1 shows in exploded perspective the structural set of a wind turbine blade that is composed of two longitudinal sections, with union of said sections according to the invention.
La figura 2 es una perspectiva de la pala de la figura anterior en su forma montada.Figure 2 is a perspective view of the blade of the previous figure in its assembled form.
La figura 3 es una perspectiva en detalle de un tramo parcial de la pala anterior, observándose la disposición de los elementos estructurales de su formación.Figure 3 is a detailed perspective of a partial section of the anterior blade, observing the provision of the structural elements of its formation.
La figura 4 es un detalle ampliado de la zona IV indicada en la figura 2, que corresponde a la raíz de la pala.Figure 4 is an enlarged detail of zone IV indicated in figure 2, which corresponds to the root of the blade.
La figura 5 es un detalle ampliado de la zona V indicada en la figura 2, que corresponde a la unión entre los tramos componentes de la pala.Figure 5 is an enlarged detail of zone V indicated in figure 2, which corresponds to the union between the sections blade components.
La figura 6 es una perspectiva explosionada de dicha zona de unión de los tramos componentes de la pala.Figure 6 is an exploded perspective of said zone of union of the component parts of the blade.
La figura 7 es una perspectiva de la misma zona de unión de los tramos componentes de la pala, con transparencia de las pieles externas para observar los elementos del interior.Figure 7 is a perspective of the same area of union of the component parts of the blade, with transparency of the outer skins to observe the elements of the interior.
La figura 8 es un detalle según la sección VIII-VIII indicada en la figura 5, apreciándose la disposición de un vástago de amarre de la unión entre los tramos componentes de la pala.Figure 8 is a detail according to section VIII-VIII indicated in Figure 5, showing the provision of a tie rod between the sections blade components.
La figura 9 es una perspectiva la formación estructural del armazón interior de los tramos componentes de la pala.Figure 9 is a formation perspective Structural structure of the internal framework of the component sections of the shovel.
El objeto de la invención se refiere a un sistema destinado para establecer el amarre de unión entre los tramos componentes de las palas de aerogenerador que se forman por tramos longitudinales independientes susceptibles de transporte por separado, para la unión de los mismos en el lugar del montaje constructivo del aerogenerador de aplicación.The object of the invention relates to a system designed to establish the tie up between the component sections of the wind turbine blades that are formed by independent longitudinal sections that can be transported by separate, for joining them at the place of assembly construction of the application wind turbine.
El sistema de la invención se prevé fundamentalmente, pero sin carácter limitativo, para palas estructuralmente formadas por dos pieles laterales externas (3) que se disponen sobre una estructura interior formada por unos largueros (4) a modo de tabiques longitudinales, de modo que las pieles externas (3) determinan el perfil aerodinámico de la pala, junto con una pieza complementaria (5) que define el borde de ataque, formando las propias pieles (3) el borde de salida mediante su prolongación hasta quedar unidas en este borde, como se observa en la figura 3, mientras que los largueros interiores (4) constituyen un armazón que determina, junto con las pieles (3), un cajón estructural a lo largo de la formación de la pala, uniéndose los largueros (4) por el interior mediante unos soportes (4.1), como se observa en la figura 9. Las palas así formadas pueden ser longitudinalmente unitarias, pero con el mismo concepto estructural de la formación constructiva, se pueden formar por dos o más tramos longitudinales destinados a unirse en el montaje contractivo del aerogenerador correspondiente.The system of the invention is provided fundamentally, but without limitation, for shovels structurally formed by two outer side skins (3) that they are arranged on an interior structure formed by stringers (4) as longitudinal partitions, so that the skins external (3) determine the aerodynamic profile of the blade, together with a complementary piece (5) that defines the leading edge, forming the skins themselves (3) the trailing edge by prolonging it until joined at this edge, as seen in figure 3, while the inner stringers (4) constitute a framework that determines, along with the skins (3), a structural drawer along of the formation of the blade, joining the stringers (4) by the interior by means of supports (4.1), as shown in the figure 9. The blades thus formed can be longitudinally unitary, but with the same structural concept of constructive training, they can be formed by two or more longitudinal sections destined to join in the wind turbine contractual assembly correspondent.
Según el sistema de la invención, la unión entre dos tamos (1, 2) componentes de una pala se establece incorporando un anillo intermedio (6), el cual determina en sus caras frontales unos acanalados (6.1), en los que encajan con su borde extremo las pieles exteriores (3) y los largueros interiores (4) de los tramos (1, 2) a unir, como se observa en las figuras 6 a 8.According to the system of the invention, the union between two tamos (1, 2) components of a shovel is established incorporating an intermediate ring (6), which determines on its front faces corrugated ones (6.1), in which they fit with their extreme edge the outer skins (3) and inner stringers (4) of the sections (1, 2) to join, as seen in figures 6 to 8.
En la parte extrema correspondiente a la unión las pieles externas (3) de los tramos (1, 2) se hallan formadas, en la zona comprendida entre los largueros interiores (4), con un regruesado (7) hacia el interior, definiéndose en dicho regruesado (7), así como en los largueros (4), unos orificios longitudinales (8) que se corresponden enfrentados en ambos tramos (1, 2) y que igualmente se corresponden con respectivos orificios pasantes a través del anillo intermedio (6).In the extreme part corresponding to the union the outer skins (3) of the sections (1, 2) are formed, in the area between the inner stringers (4), with a returned (7) inwards, defined in said return (7), as well as in the stringers (4), longitudinal holes (8) that correspond to each other in both sections (1, 2) and that they also correspond to respective through holes to through the intermediate ring (6).
Los orificios longitudinales (8) desembocan en los correspondientes tramos (1, 2) en respectivos huecos (9, 10) practicados perpendicularmente por la parte interior de las paredes en las que dichos orificios longitudinales (8) se hallan definidos.The longitudinal holes (8) lead to the corresponding sections (1, 2) in respective holes (9, 10) practiced perpendicularly by the inside of the walls wherein said longitudinal holes (8) are defined.
En uno de los tramos de pala, por ejemplo el tramo (1), los huecos (9) en los que desembocan los orificios longitudinales (8), son cilíndricos, y en ellos se encajan unos correspondientes elementos cilíndricos (11) provistos con un orificio transversal roscado (11.1), para el acoplamiento a rosca del extremo de un vástago (12) que se inserta por el orificio longitudinal (8) respectivo.In one of the spade sections, for example the section (1), the holes (9) in which the holes open Longitudinal (8), are cylindrical, and they fit in some corresponding cylindrical elements (11) provided with a threaded cross hole (11.1), for screw coupling from the end of a stem (12) that is inserted through the hole longitudinal (8) respective.
En el otro tramo de pala, en este caso el tramo (2), los huecos (10) en los que desembocan lo orificios longitudinales (8), son oblongos, alojándose en cada uno de ellos una arandela de tope (13) y una tuerca (14) que se incorpora sobre el otro extremo del vástago (12) pasante por el orificio longitudinal (8) respectivo, de manera que dicha tuerca (14) puede ser actuada a través de la embocadura del hueco oblongo (10), para establecer con ella un aprieto de tensión del vástago (12).In the other section of shovel, in this case the section (2), the holes (10) into which the holes flow Longitudinal (8), are oblong, staying in each of them a stop washer (13) and a nut (14) that is incorporated over the other end of the rod (12) through the hole longitudinal (8) respectively, so that said nut (14) can be acted through the mouth of the oblong hole (10), to establish with it a pinch tension of the rod (12).
En tales condiciones, para establecer el amarre de unión entre los tramos (1, 2), primero se insertan en los huecos (9) del tramo (1) los elementos cilíndricos (11) y por los orificios longitudinales (8) correspondientes se introducen respectivos vástagos (12), los cuales se acoplan por roscado sobre los mencionados elementos cilíndricos (11), con lo cual dichos vástagos (12) quedan fijados respecto del tramo (1), sobresaliendo axialmente de los orificios longitudinales (8).Under such conditions, to establish the mooring of union between the sections (1, 2), first they are inserted in the gaps (9) of the section (1) the cylindrical elements (11) and through the holes corresponding longitudinal (8) are entered respectively stems (12), which are threaded onto the mentioned cylindrical elements (11), whereby said stems (12) are fixed with respect to section (1), protruding axially of the longitudinal holes (8).
Una vez así, se inserta el anillo intermedio (6), haciendo pasar los vástagos (12) por los orificios de dicho anillo (6), el cual se lleva hasta hacer tope contra el tramo (1), y en esa disposición, para establecer la unión del tramo (2), se realiza la inserción de ambas partes entre sí, haciendo que los vástagos (12) se introduzcan por los orificios longitudinales (8) de dicho tramo (2), hasta los huecos oblongos (10) del mismo, en donde sobre el extremo de los vástagos (12) se incorporan las arandelas (13) y las tuercas (14) correspondientes, de forma que apretando las tuercas (14) se obtiene una tensión de los vástagos (12) que asegura la unión entre los tramos (1) y (2), tal como representa la figura 8.Once like this, the intermediate ring is inserted (6), by passing the stems (12) through the holes of said ring (6), which is carried until it stops against the section (1), and in that provision, to establish the union of the section (2), performs the insertion of both parts with each other, making the stems (12) are introduced through the longitudinal holes (8) of said section (2), to the oblong holes (10) thereof, where on the end of the stems (12) the washers are incorporated (13) and the corresponding nuts (14), so that tightening the nuts (14) you get a tension from the stems (12) that ensures the union between sections (1) and (2), as shown in the figure 8.
Los huecos (9, 10), en los que desembocan los orificios longitudinales (8) de los tramos (1, 2) no pasan hasta el exterior de las pieles externas (3) de los tramos (1, 2), de manera que el perfil aerodinámico de la pala no resulta afectado por el amarre de la unión y además el debilitamiento estructural por los mencionados huecos (9, 10) no afecta a la resistencia de la pala para su función. La actuación sobre las tuercas (14) de aprieto del amarre de la unión, es en todo caso practicable desde interior de la pala, ya que la unión de los tramos (1, 2) se establece en una zona media de la pala, en donde el espacio interior es suficiente para que entre un operario.The gaps (9, 10), in which the Longitudinal holes (8) of the sections (1, 2) do not pass until the outside of the outer skins (3) of the sections (1, 2), so that the aerodynamic profile of the blade is not affected by the mooring of the union and also the structural weakening by mentioned holes (9, 10) does not affect the resistance of the blade for your function The action on the nuts (14) of tightening of the mooring of the union, it is in any case practicable from inside the shovel, since the union of the sections (1, 2) is established in an area middle of the shovel, where the interior space is sufficient to that between an operator.
La incorporación del anillo intermedio (6) en la unión, determina por su parte una protección sobre el borde de las pieles externas (3) de los tramos (1, 2) que se unen, evitando el desfibrado de dichas pieles a partir de sus bordes por la acción del viento en la función del trabajo de aplicación de la pala.The incorporation of the intermediate ring (6) in the union, on the other hand, determines a protection on the edge of the external skins (3) of the sections (1, 2) that join, avoiding the defibration of these skins from their edges by the action of wind in the function of the shovel application work.
Claims (6)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200800641A ES2364258B1 (en) | 2008-03-05 | 2008-03-05 | AEROGENERATOR BLADES SECTION UNION SYSTEM |
| US12/398,367 US20090226320A1 (en) | 2008-03-05 | 2009-03-05 | System for connecting wind generator blade sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200800641A ES2364258B1 (en) | 2008-03-05 | 2008-03-05 | AEROGENERATOR BLADES SECTION UNION SYSTEM |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2364258A1 true ES2364258A1 (en) | 2011-08-30 |
| ES2364258B1 ES2364258B1 (en) | 2012-06-01 |
Family
ID=41053783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200800641A Withdrawn - After Issue ES2364258B1 (en) | 2008-03-05 | 2008-03-05 | AEROGENERATOR BLADES SECTION UNION SYSTEM |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20090226320A1 (en) |
| ES (1) | ES2364258B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2385726A1 (en) * | 2012-05-10 | 2012-07-31 | Manuel Torres Martínez | Wind turbine blade formed by sections (Machine-translation by Google Translate, not legally binding) |
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| US8777578B2 (en) * | 2008-06-20 | 2014-07-15 | Vestas Wind Systems A/S | Method of manufacturing a spar for a wind turbine from elements having geometrically well-defined joint surface portions |
| CN102123849B (en) | 2008-06-20 | 2015-03-11 | 维斯塔斯风力***有限公司 | A method of manufacturing a spar for a wind turbine from elements having end portions extending transversely to an intermediate portion |
| CN102124215B (en) * | 2008-06-20 | 2013-09-11 | 维斯塔斯风力***有限公司 | A method of manufacturing a spar for a wind turbine from elements comprising different materials, and the related spar |
| CN101718250B (en) * | 2010-01-11 | 2011-11-09 | 华锐风电科技(集团)股份有限公司 | Sectional type wind wheel vanes of wind power generator set and assembly method thereof |
| US20130129517A1 (en) * | 2010-05-20 | 2013-05-23 | Tecsis Tecnologia E Sistemas Avancados S.A. | Aerogenerator blade and manufacturing method thereof |
| EP2400147A1 (en) * | 2010-06-25 | 2011-12-28 | Siemens Aktiengesellschaft | Root of the blade of a wind turbine |
| ES2392523B2 (en) * | 2011-05-13 | 2013-05-16 | Investigaciones Y Desarrollos Eólicos, S.L. | SYSTEM OF UNION OF COMPONENT SECTIONS OF AEROGENERATOR SHOES. |
| FR2980246B1 (en) * | 2011-09-20 | 2018-08-17 | Arianegroup Sas | DEVICE FOR CONNECTING WING STRINGS AND METHOD OF ASSEMBLING SUCH TRUNCONS |
| GB201118419D0 (en) | 2011-10-25 | 2011-12-07 | Blade Dynamics Ltd | A method of making a root end joint of a wind turbine blade and a root segment for such a joint |
| DE102011088025A1 (en) * | 2011-12-08 | 2013-06-13 | Wobben Properties Gmbh | Rotor blade for horizontal axle wind turbine, has anchoring element anchored in blade outer part, counter element anchored in blade inner part, and connecting bolts reaching through counter element and fastened in anchoring element |
| FR2989723B1 (en) * | 2012-04-20 | 2024-02-09 | Astrium Sas | ASSEMBLY OF STRUCTURES OF STRUCTURAL PARTS |
| GB201215004D0 (en) | 2012-08-23 | 2012-10-10 | Blade Dynamics Ltd | Wind turbine tower |
| GB201217210D0 (en) | 2012-09-26 | 2012-11-07 | Blade Dynamics Ltd | A metod of forming a structural connection between a spar cap fairing for a wind turbine blade |
| GB201217212D0 (en) | 2012-09-26 | 2012-11-07 | Blade Dynamics Ltd | Windturbine blade |
| US9605651B2 (en) * | 2013-12-04 | 2017-03-28 | General Electric Company | Spar assembly for a wind turbine rotor blade |
| BR112016023218B1 (en) * | 2014-04-07 | 2022-08-30 | Wobben Properties Gmbh | ROTOR BLADES, WIND TURBINE, AND METHOD FOR PRODUCTION OF A ROTOR BLADES |
| FR3023747B1 (en) * | 2014-07-18 | 2017-03-10 | Airbus Helicopters | METHOD FOR MANUFACTURING A LONGERON OF A BLADE, AND MANUFACTURING A BLADE |
| EP4077914B1 (en) * | 2019-12-17 | 2024-02-07 | Vestas Wind Systems A/S | Wind turbine blade |
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| ES2217026T3 (en) * | 1999-12-24 | 2004-11-01 | Aloys Wobben | USE OF A BUMPER UNION FOR ROTOR BLADES. |
| JP2004011616A (en) * | 2002-06-11 | 2004-01-15 | Shin Meiwa Ind Co Ltd | Wind mill blade structure for wind power generator |
| EP1584817A1 (en) * | 2004-04-07 | 2005-10-12 | Gamesa Eolica, S.A. (Sociedad Unipersonal) | Wind turbine blade |
| US20070290118A1 (en) * | 2004-11-24 | 2007-12-20 | Henrik Stiesdal | Method And Connecting Piece For Assembling An Arm, Preferably A Windmill Arm, In Sections |
| ES2265760A1 (en) * | 2005-03-31 | 2007-02-16 | Gamesa Eolica, S.A. Sociedad Unipersonal | Blade for wind-power generators |
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| ES2385726A1 (en) * | 2012-05-10 | 2012-07-31 | Manuel Torres Martínez | Wind turbine blade formed by sections (Machine-translation by Google Translate, not legally binding) |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2364258B1 (en) | 2012-06-01 |
| US20090226320A1 (en) | 2009-09-10 |
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