ES2534260B1 - Rotary single axis solar tracker - Google Patents

Rotary single axis solar tracker Download PDF

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Publication number
ES2534260B1
ES2534260B1 ES201301003A ES201301003A ES2534260B1 ES 2534260 B1 ES2534260 B1 ES 2534260B1 ES 201301003 A ES201301003 A ES 201301003A ES 201301003 A ES201301003 A ES 201301003A ES 2534260 B1 ES2534260 B1 ES 2534260B1
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fixed
single axis
solar tracker
support
axis solar
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Expired - Fee Related
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ES201301003A
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ES2534260A1 (en
Inventor
Julio Inocente GARCÍA MORENO RODRÍGUEZ
José Antonio GARCÍA MORENO RODRÍGUEZ
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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
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking

Abstract

Seguidor solar de eje único rotacional donde una parte del eje (1) penetra en forma de vaina coaxialmente sobre la otra (2), siendo una de ellas fija y la otra móvil, estando apoyadas entre sí a través de un rodamiento cónico (3) y el bastidor (7) del colector solar fijo a la parte móvil. Entre las partes fija y móvil se dispone un segundo apoyo a través de un casquillo de fricción (4) en el extremo opuesto al primer apoyo de rodamiento (3). El giro relativo entre ambas partes del eje se consigue a través de un actuador mecánico del tipo sinfín-corona (5) dispuesto a la altura del segundo apoyo (4). El bastidor (7) del colector o colectores solares se fija a la parte móvil del eje a través de cuatro perfiles longitudinales (6) en forma de arriostrados fijados a la altura del segundo apoyo (4).Rotational single axis solar tracker where one part of the shaft (1) penetrates in the form of a sheath coaxially over the other (2), one of them being fixed and the other mobile, being supported between each other through a tapered bearing (3) and the frame (7) of the solar collector fixed to the movable part. Between the fixed and mobile parts, a second support is arranged through a friction bushing (4) at the opposite end of the first bearing support (3). The relative rotation between both parts of the shaft is achieved through a mechanical actuator of the endless-crown type (5) arranged at the height of the second support (4). The frame (7) of the solar collector or collectors is fixed to the movable part of the shaft through four longitudinal profiles (6) in the form of bracings fixed at the height of the second support (4).

Description

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DESCRIPCIONDESCRIPTION

Seguidor solar de eje unico rotacional.Rotational single axis solar tracker.

Objeto y campo de la invencionObject and field of the invention

El objeto de la presente solicitud de Patente de Invencion, como su enunciado indica, se refiere a un seguidor solar constituido por un solo eje de rotacion disenado para sustentar uno o varios captadores o receptores solares, tanto del tipo termico como fotovoltaico. Las principales claves de la invencion se centran en la sencillez de su diseno y el reducido numero de elementos que lo constituyen, proporcionando una funcionalidad que otros disenos necesitan conseguir con la participation de un mayor numero de componentes o un diseno mas complejo. La invencion se encuadra en el sector de las energlas renovables de origen solar, dentro de los dispositivos estructurales disenados para optimizar la captation mediante la orientation del receptor solar.The object of the present invention patent application, as its statement indicates, refers to a solar tracker consisting of a single rotation axis designed to support one or more solar collectors or receivers, both thermal and photovoltaic. The main keys of the invention focus on the simplicity of its design and the small number of elements that constitute it, providing a functionality that other designs need to achieve with the participation of a greater number of components or a more complex design. The invention is part of the renewable energy sector of solar origin, within the structural devices designed to optimize captation through the orientation of the solar receiver.

Estado de la tecnica anteriorState of the prior art

Se desconoce la existencia de antecedentes de cualquier estructura de seguidor solar de caracterlsticas similares, en el que el dispositivo, con un solo eje, este se encuentre subdividido en dos partes, una fija y otra movil, envolviendo la una a la otra en forma de vaina o casquillo coaxial y apoyadas entre si a traves de un rodamiento. Realizando una retrospectiva acerca de distintas ideas sobre seguidores solares, se han encontrado en el mercado y por consiguiente comprendidos en el estado de la tecnica anterior, una variedad de dispositivos, pero que en ningun caso coinciden en las atribuciones que se derivan de la citada disposicion relativa de elementos. Las similitudes mas cercanas encontradas se encuentran divulgadas en una serie de documentos publicados relativos a otros disenos de estructura de seguidores con las siguientes referencias: (N° publication) KR10-2013-0090573A, CN202977444U, y FR2986308A1.The existence of antecedents of any solar tracker structure with similar characteristics is unknown, in which the device, with a single axis, is subdivided into two parts, one fixed and the other mobile, wrapping each other in the form of sheath or coaxial bushing and supported each other through a bearing. Making a retrospective about different ideas about solar trackers, a variety of devices have been found in the market and therefore included in the prior art, but which in no case coincide in the attributions derived from the aforementioned provision relative of elements. The closest similarities found are disclosed in a series of published documents relating to other designs of the structure of followers with the following references: (N ° publication) KR10-2013-0090573A, CN202977444U, and FR2986308A1.

El primero de ellos (KR10-2013-0090573A) presenta ciertas similitudes, tal y como la existencia de un unico eje de rotacion. Sin embargo, a pesar de estar eje fijo y movil envainados el uno sobre el otro (en este caso el fijo interiormente al movil) estos no son coaxiales, lo que no permite una sustentacion de esfuerzos en la direction del eje. Por el contrario en CN202977444U eje fijo y movil son coaxiales, pero no estan envainados el uno sobre el otro, lo que lo hace un diseno vulnerable a esfuerzos perpendiculares al eje, si es que no media la participacion de elementos adicionales o sean los propios elementos de accionamiento motor los que soportan los esfuerzos. El menor numero de componentes que hacen posible el giro y la robustez del diseno de la invencion redundan en una mayor economla y simplicidad en la fabrication, asl como de su menor mantenimiento y facilidad en las eventuales reparaciones.The first one (KR10-2013-0090573A) has certain similarities, such as the existence of a single axis of rotation. However, despite being fixed and mobile axis sheathed on each other (in this case the fixed internally to the mobile) these are not coaxial, which does not allow a support of efforts in the direction of the axis. On the contrary in CN202977444U fixed and mobile axis are coaxial, but they are not sheathed on each other, which makes it a design vulnerable to efforts perpendicular to the axis, if the participation of additional elements or the elements themselves are not mediated of motor drive those that support the efforts. The lower number of components that make the rotation possible and the robustness of the design of the invention result in a greater economy and simplicity in manufacturing, as well as its lower maintenance and ease in eventual repairs.

Descripcion detallada de la invencionDetailed description of the invention

La invencion constituye una simplification de los actuales sistemas de seguidores solares con un solo eje de rotacion gracias a la disposition de una parte del eje, la fija o la movil, envainada sobre la otra parte del eje de manera coaxial, a modo de casquillo y apoyadas entre si a traves de un rodamiento. El eje en su conjunto puede estar vertical, inclinado o incluso horizontal. El bastidor del colector o colectores solares se fija a la parte movil a traves de unos perfiles longitudinales en forma de arriostradosThe invention constitutes a simplification of the current solar tracker systems with a single axis of rotation thanks to the provision of a part of the axis, the fixed or the mobile, sheathed on the other part of the axis in a coaxial manner, as a bushing and supported each other through a bearing. The axis as a whole can be vertical, inclined or even horizontal. The frame of the collector or solar collectors is fixed to the mobile part through longitudinal profiles in the form of bracing

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o tirantes, a fin de conferir la inclination necesaria. Dichos perfiles pueden trabajar tanto a traction como a compresion de esfuerzos, segun disposition orientada del seguidor y vientos incidentes sobre el colector o colectores solares. Entre las partes de eje fijo y movil se puede disponer un segundo apoyo a traves de un casquillo de friction u otro rodamiento, a fin de evitar que los esfuerzos tangenciales al eje sean soportados unicamente por el mecanismo de accionamiento o actuador mecanico. El actuador mecanico puede ser del tipo corona-sinfin y se dispone en un punto intermedio o en un extremo de ambos apoyos de parte fija y movil de eje, a fin de conseguir su giro relativo.or braces, in order to confer the necessary inclination. Said profiles can work both on traction and compression of stresses, according to oriented disposition of the tracker and incidental winds on the solar collector or collectors. Between the fixed and mobile axle parts, a second support can be arranged through a friction bush or other bearing, in order to avoid that the tangential stresses to the shaft are only supported by the mechanical drive mechanism. The mechanical actuator can be of the crown-auger type and is arranged at an intermediate point or at one end of both fixed and movable axle supports, in order to achieve their relative rotation.

Otros detalles y caracterlsticas de la actual solicitud de Patente de Invention se iran poniendo de manifiesto en el transcurso de la description que a continuation se da, en la que de manera esquematica se representa una realization preferente. Estos detalles se dan a tltulo de ejemplo, haciendo referencia a una ejecucion practica, pero no queda limitado a los detalles que ahl se exponen; por tanto esta descripcion debe ser considerada desde un punto de vista ilustrativo y sin limitaciones de ninguna clase sobre el alcance de la presente Patente de Invencion.Other details and characteristics of the current Invention Patent application will be revealed in the course of the description given below, in which a preferred embodiment is schematically represented. These details are given by way of example, referring to a practical execution, but it is not limited to the details set forth herein; therefore this description should be considered from an illustrative point of view and without limitations of any kind on the scope of the present invention patent.

Descripcion de los dibujosDescription of the drawings

La figura n° 1 representa una vista de conjunto de la realizacion preferente del seguidor.Figure 1 represents an overall view of the preferred embodiment of the follower.

La figura n° 2 es una vista del eje y sus partes, fija y movil, asl como del detalle de sus apoyos y disposicion del actuador mecanico.Figure 2 is a view of the axis and its parts, fixed and mobile, as well as the detail of its supports and arrangement of the mechanical actuator.

La figura n° 3 representa en detalle un actuador mecanico del tipo sinfin-corona.Figure 3 represents in detail a mechanical actuator of the endless-crown type.

Representation de las referencias numericas:Representation of the numerical references:

(1) Parte fija del eje.(1) Fixed part of the shaft.

(2) Parte movil del eje.(2) Moving part of the shaft.

(3) Rodamiento superior.(3) Top bearing.

(4) Casquillo de friccion o rodamiento inferior.(4) Friction bush or lower bearing.

(5) Actuador mecanico.(5) Mechanical actuator.

(6) Perfiles longitudinales.(6) Longitudinal profiles.

(7) Bastidor del colector o colectores solares.(7) Collector frame or solar collectors.

(8) Inversor(8) Investor

(9) Soporte del inversor.(9) Inverter support.

(10) Placa de anclaje o apoyo.(10) Anchor or support plate.

(11) Cimentacion.(11) Foundation.

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Realizacion preferentePreferred embodiment

En un modo de realizacion preferente de la invention, el seguidor solar se disena con una sola columna o eje de rotation vertical, en el que una parte del eje (1), en este caso la parte fija, penetra en forma de vaina o casquillo coaxialmente sobre la otra (2), la parte movil, estando ambas apoyadas entre si en su extremo superior a traves de un rodamiento del tipo conico (3) y el bastidor (7) del colector o colectores solares fijo a la parte movil (2) del eje a traves de unos perfiles longitudinales (6) en forma de arriostrados o tirantes.In a preferred embodiment of the invention, the solar tracker is designed with a single column or axis of vertical rotation, in which a part of the axis (1), in this case the fixed part, penetrates as a sheath or bushing coaxially on the other (2), the mobile part, both of which are resting on each other at their upper end through a conical type bearing (3) and the frame (7) of the solar collector or collectors fixed to the mobile part (2 ) of the shaft through longitudinal profiles (6) in the form of bracing or braces.

Entre las partes de eje fijo (1) y movil (2) se dispone un segundo apoyo (4) a traves de un casquillo de friction u otro rodamiento, sito en el extremo opuesto al primer apoyo de rodamiento (3). El giro relativo entre ambas partes del eje se consigue a traves de un actuador mecanico (5) del tipo sinfln-corona dispuesto a la altura del segundo apoyo (4). Los perfiles (6) que soportan el bastidor del colector o colectores solares en este caso son cuatro y van fijados a la altura del segundo apoyo (4).Between the fixed (1) and mobile (2) axle parts a second support (4) is arranged through a friction bush or other bearing, located at the opposite end of the first bearing support (3). The relative rotation between both parts of the shaft is achieved through a mechanical actuator (5) of the crown-type type arranged at the height of the second support (4). The profiles (6) that support the collector frame or solar collectors in this case are four and are fixed at the height of the second support (4).

La realizacion descrita corresponde a un diseno especialmente indicado para soportar una parrilla o bastidor de paneles fotovoltaicos, tlpicamente utilizados en huertos solares de conexion a red o production aislada, para aplicaciones de bombeo de agua, recarga de baterlas, suministro electrico a viviendas rurales, etc.The described embodiment corresponds to a design especially indicated to support a grid or rack of photovoltaic panels, typically used in solar orchards with grid connection or isolated production, for applications of water pumping, battery recharge, electrical supply to rural homes, etc. .

En este caso el inversor (8) se dispone en la parte movil del eje (2) a traves de un soporte (9). La parte fija del eje (1) se fija a la cimentacion (11) a traves de una placa de anclaje o apoyo (10).In this case, the inverter (8) is arranged on the mobile part of the shaft (2) through a support (9). The fixed part of the shaft (1) is fixed to the foundation (11) through an anchor or support plate (10).

No se considera necesario hacer mas extensa esta description para que cualquier experto en la materia comprenda el alcance de la invencion y las ventajas que de la misma se derivan.It is not considered necessary to make this description more extensive so that any person skilled in the art understands the scope of the invention and the advantages derived therefrom.

Se hace constar a los efectos oportunos, que en el objeto que constituye la presente solicitud de Patente de Invencion podran introducirse todas aquellas variaciones y modificaciones de detalle que las circunstancias y la practica pudieran aconsejar, siempre y cuando con las variantes que se introduzcan no se altere o modifique la esencia que queda resumida en las siguientes Reivindicaciones.It is stated for the appropriate purposes, that in the object that constitutes the present application for a Patent of Invention, all those variations and modifications of detail that the circumstances and practice could advise may be introduced, provided that with the variants that are introduced, it is not possible alter or modify the essence that is summarized in the following Claims.

Claims (10)

55 1010 15fifteen 20twenty 2525 3030 3535 4040 ES 2 534 260 A1ES 2 534 260 A1 REIVINDICACIONES 1. Seguidor solar de eje unico rotacional caracterizado porque una parte del eje (1) penetra en forma de vaina o casquillo coaxialmente sobre la otra (2), siendo una de ellas fija y la otra movil, estando apoyadas entre si a traves de un rodamiento (3) y el bastidor (7) del colector o colectores solares fijo a la parte movil.1. Rotational single axis solar tracker characterized in that a part of the shaft (1) penetrates in the form of a sheath or bushing coaxially over the other (2), one of them being fixed and the other mobile, being supported between each other through a bearing (3) and the frame (7) of the collector or solar collectors fixed to the mobile part. 2. Seguidor solar de eje unico rotacional segun la reivindicacion anterior caracterizado porque el rodamiento (3) es del tipo conico.2. Rotational single axis solar tracker according to the preceding claim characterized in that the bearing (3) is of the conical type. 3. Seguidor solar de eje unico rotacional segun la reivindicacion 1a o 2a caracterizado porque entre las partes de eje fijo y movil se dispone un segundo apoyo3. Rotational single axis solar tracker according to claim 1 or 2, characterized in that a second support is provided between the fixed and mobile axis parts (4) a traves de un casquillo de friccion u otro rodamiento.(4) through a friction bush or other bearing. 4. Seguidor solar de eje unico rotacional segun la reivindicacion anterior caracterizado porque el segundo apoyo (4) se encuentra en el extremo opuesto al primer apoyo de rodamiento (3 ).4. Rotational single axis solar tracker according to the preceding claim characterized in that the second support (4) is at the opposite end of the first bearing support (3). 5. Seguidor solar de eje unico rotacional segun la reivindicacion 3a caracterizado porque el giro relativo entre ambas partes del eje se consigue a traves de un actuador mecanico5. Rotary single axis solar tracker according to claim 3a characterized in that the relative rotation between both parts of the shaft is achieved through a mechanical actuator (5) .(5) . 6. Seguidor solar de eje unico rotacional segun la reivindicacion anterior caracterizado porque el actuador mecanico (5) es del tipo sinfin-corona.6. Rotary single axis solar tracker according to the preceding claim characterized in that the mechanical actuator (5) is of the crown-endless type. 7. Seguidor solar de eje unico rotacional segun la reivindicacion 5a caracterizado porque el actuador mecanico (5) se dispone a la altura del segundo apoyo (4).7. Rotational single axis solar tracker according to claim 5a characterized in that the mechanical actuator (5) is arranged at the height of the second support (4). 8. Seguidor solar de eje unico rotacional segun la reivindicacion 3a caracterizado porque el bastidor (7) del colector o colectores solares se fija a la parte movil del eje a traves de unos perfiles longitudinales (6) en forma de arriostrados o tirantes.8. Rotational single axis solar tracker according to claim 3a characterized in that the frame (7) of the solar collector or collectors is fixed to the mobile part of the axis through longitudinal profiles (6) in the form of bracing or braces. 9. Seguidor solar de eje unico rotacional segun la reivindicacion anterior caracterizado porque los perfiles (6) son fijados a la altura del segundo apoyo (4).9. Rotational single axis solar tracker according to the previous claim characterized in that the profiles (6) are fixed at the height of the second support (4). 10. Seguidor solar de eje unico rotacional segun la reivindicacion 8a o 9a caracterizado porque los perfiles (6) son cuatro.10. Rotational single axis solar tracker according to claim 8a or 9a characterized in that the profiles (6) are four.
ES201301003A 2013-10-18 2013-10-18 Rotary single axis solar tracker Expired - Fee Related ES2534260B1 (en)

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ES2534260B1 true ES2534260B1 (en) 2016-02-19

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