ES1077698U

ES1077698U - Modular platform for maintenance in wind turbines (Machine-translation by Google Translate, not legally binding)

Info

Publication number: ES1077698U
Application number: ES201200734U
Authority: ES
Inventors: Jesús PLAZA VILAR
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-07
Filing date: 2012-08-07
Publication date: 2012-09-14
Anticipated expiration: 2022-08-07
Also published as: ES1077698Y

Abstract

Modular platform for maintenance in wind turbines, which is planned to be able to be located at any height of the wind turbine mast, in order to allow repair, cleaning and maintenance in general of both the blades and the wind turbine rotor itself, it is characterized constituted by a plurality of modules conveniently related to each other forming a structure around the corresponding mast of the wind turbine, with the particularity that between said annular structure and the external surface of the mast are located spacers with support on the outer surface of the mast by means of elements of rolling it being further provided that on the lateral and external part of one of the modules of the structure of the platform, a first arm be articulated that at its end receives the articulation of a second arm carrying a basket for the operator in charge of performing the tasks maintenance and cleaning of both the blades and the rotor of the wind turbine, the assembly formed by said two arms with the basket being capable of both horizontal elevation and horizontal movement. (Machine-translation by Google Translate, not legally binding)

Description

OBJECT OF THE INVENTION

La presente invención se refiere a una plataforma modular para mantenimiento en aerogeneradores, prevista concretamente para ser utilizada como medio de acceso a las palas y el rotor de aerogeneradores, para llevar a cabo las operaciones de mantenimiento, reparación, inspección y en general de cualquier tipo de trabajo sobre el aerogenerador. The present invention relates to a modular platform for maintenance in wind turbines, specifically intended to be used as a means of access to wind turbine blades and rotor, to carry out maintenance, repair, inspection and general operations of any kind. of work on the wind turbine.

El objeto de la invención es conseguir una plataforma que facilite a los operarios el acceso a los lugares de trabajo del aerogenerador, para el mantenimiento de éste, SIn requerir medios de escalada convencionales y sin menoscabo de las fuerzas físicas empleadas habitualmente para acceder a las partes a mantener o zonas de trabajo. The object of the invention is to achieve a platform that facilitates the operators access to the workplaces of the wind turbine, for the maintenance of the latter, SIn require conventional means of climbing and without prejudice to the physical forces commonly used to access the parts to maintain or work areas.

BACKGROUND OF THE INVENTION

La normativa legal en el ámbito de seguridad exige que cuando un operario está trabajando en altura, como por ejemplo bajo el rotor de un aerogenerador, su jornada está limitada a seis horas diarias, lo que evidentemente lleva consigo una reducción de la productividad. Legal regulations in the field of safety require that when an operator is working at height, such as under the rotor of a wind turbine, his day is limited to six hours a day, which obviously leads to a reduction in productivity.

Además, en el caso de avería los tiempos de reparación se ven In addition, in the case of breakdown repair times are seen

muy dilatados, con las consiguientes pérdidas económicas. very extensive, with the consequent economic losses.

Pues bien, para realizar las labores de mantenimiento y trabajos en altura de los aerogeneradores, se utilizan sistemas basados en plataformas colgadas de una u otra forma, y que permiten el mantenimiento de la correspondiente pala del aerogenerador. Well, to perform maintenance work and work at height of wind turbines, systems based on platforms hung in one way or another are used, and that allow the maintenance of the corresponding wind turbine blade.

Aunque los sistemas de plataforma son estructuralmente simples, SIn embargo presentan un problema que se centra fundamentalmente en los siguientes aspectos: Although platform systems are structurally simple, they still have a problem that focuses primarily on the following aspects:

La plataforma ha de ser transportada hasta el aerogenerador mediante camiones o grúas especiales, lo cual supone un handicap grave debido al emplazamiento de los aerogeneradores, que suele ser en lo alto de lomas de dificil acceso. La plataforma está prevista y realizada convencionalmente para permitir únicamente el acceso a las palas del aerogenerador, y lo que es peor, en general solamente a la cara interior de dichas palas frente al mástil, aunque algunas soluciones más sofisticadas permiten el acceso a la cara exterior de las palas. Además de las palas del aerogenerador, el resto de elementos de éste requiere para su mantenimiento o reparación que los operarios escalen, con las consiguientes penalizaciones en tiempo y economía. The platform has to be transported to the wind turbine by trucks or special cranes, which is a serious handicap due to the location of the wind turbines, which is usually at the top of difficult access hills. The platform is planned and carried out conventionally to allow access only to the wind turbine blades, and worse, in general only to the inner face of said blades in front of the mast, although some more sophisticated solutions allow access to the outer face of the shovels. In addition to the blades of the wind turbine, the rest of the elements of this one require for its maintenance or repair that the operators scale, with the consequent penalties in time and economy.

DESCRIPCIÓN DE LA INVENCIÓN DESCRIPTION OF THE INVENTION

La plataforma que se preconiza ha sido concebida para resolver la problemática anteriormente expuesta, ya que se trata de una plataforma que es en primer lugar modular, y a su vez elevable de forma autopropulsada con grúa, incorporando además una cesta de trabajo para que el operario The platform that has been recommended has been conceived to solve the problem described above, since it is a platform that is primarily modular, and in turn self-propelled with crane, also incorporating a work basket for the operator

5 trabaje cómodamente y sin ningún tipo de peligro. 5 work comfortably and without any danger.

En base a la plataforma modular de la invención, el transporte Based on the modular platform of the invention, transportation

puede realizarse de forma fácil y sencilla con vehículos ligeros hasta el It can be done easily and easily with light vehicles up to

propio aerogenerador, con acceso a todas las partes de las palas y del rotor, wind turbine itself, with access to all parts of the blades and rotor,

lOen virtud de las características estructurales que participan en el conjunto de la plataforma, con el consiguientes ahorro de tiempo y economía al no ser necesaria la intervención de escaladores, todo ello con una estructuración simple y consecuentemente sencilla. Due to the structural characteristics that participate in the platform as a whole, with the consequent saving of time and economy as the intervention of climbers is not necessary, all with a simple and consequently simple structuring.

15 Mas concretamente, la plataforma de la invención se caracteriza porque está constituida por una pluralidad de módulos que relacionados correlativamente entre si con carácter desmontable, circundan el contorno del mástil, estableciéndose entre la plataforma anular y la superficie externa del mástil unos separadores regulables al diámetro o More specifically, the platform of the invention is characterized in that it is constituted by a plurality of modules that correlatively related to each other with removable character, surround the contour of the mast, establishing separators adjustable to the diameter between the annular platform and the external surface of the mast or

20 contorno del propio mástil del aerogenerador, cuyos separadores presentan en su extremo de apoyo sobre el mástil elementos rodantes para facilitar el movimiento ascendente y descendente de la propia plataforma. 20 contour of the wind turbine's own mast, whose spacers have rolling elements at their support end to facilitate the up and down movement of the platform itself.

El conjunto de tal plataforma quedará suspendida de la base del The whole of such platform will be suspended from the base of the

25 rotor mediante dos parejas de cables, disponiendo de una pareja de motores de elevación que permiten que sea autopropulsada, procediendo la servidumbre eléctrica del propio aerogenerador o algún otro tipo de dispositivo. 25 rotor by means of two pairs of cables, having a pair of lifting motors that allow it to be self-propelled, proceeding with the electric servitude of the wind turbine itself or some other type of device.

Por otro lado, la plataforma presenta un brazo articulado a la On the other hand, the platform presents an articulated arm to the

misma, sobre el que a su vez articula un segundo brazo como elemento de soporte para una cesta para los operarios, al objeto de que éstos puedan realizar las operaciones de limpieza, mantenimiento y reparación tanto de las palas, en toda su superficie, como del propio rotor. same, on which in turn articulates a second arm as a support element for a basket for the operators, so that they can perform the cleaning, maintenance and repair operations of both the blades, throughout its surface, and the own rotor

El brazo articulado tiene dos movimientos, uno de elevación y otro de giro en horizontal, al igual que el segundo brazo portador de la cesta. The articulated arm has two movements, one of elevation and another of rotation in horizontal, like the second carrying arm of the basket.

DESCRIPTION OF THE DRAWINGS

Para complementar la descripción que seguidamente se va a realizar y con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de realización práctica del mismo, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente: To complement the description that will then be made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical implementation thereof, a set of drawings is attached as an integral part of said description. where, for illustrative and non-limiting purposes, the following has been represented:

La figura 1.-Muestra una representación esquemática correspondiente a una perspectiva de la plataforma modular objeto de la invención, situada a una altura en la que el operario trabajará sobre el extremo de la correspondiente pala vertical. Figure 1 shows a schematic representation corresponding to a perspective of the modular platform object of the invention, located at a height in which the operator will work on the end of the corresponding vertical blade.

La figura 2.-Muestra una vista como la de la figura anterior, pero en este caso con la plataforma en su posición elevada para que el operario pueda trabajar sobre el rotor. Figure 2.- It shows a view like that of the previous figure, but in this case with the platform in its elevated position so that the operator can work on the rotor.

La figura 3.-Muestra un detalle ampliado de la plataforma representada en la figura anterior y su montaje sobre el correspondiente mástil. Figure 3.- Shows an enlarged detail of the platform represented in the previous figure and its assembly on the corresponding mast.

La figura 4.-Muestra una vista también en perspectiva de un detalle ampliado de la misma plataforma mostrada en la figura 2. Figure 4 shows a perspective view of an enlarged detail of the same platform shown in Figure 2.

PREFERRED EMBODIMENT OF THE INVENTION

Como se puede ver en las figuras referidas, la plataforma de la invención está constituida mediante una pluralidad de módulos (1) interacoplados entre si para formar una estructura alrededor del correspondiente mástil (2) de un aerogenerador, como se representa en las figuras 1 y 2, de manera que esa plataforma en su conjunto puede situarse en correspondencia con el extremo inferior de la pala vertical (3) del aerogenerador y hacer trabajos sobre ese extremo de la pala (3), o bien situarse en correspondencia con el propio rotor (4) del aerogenerador para realizar trabajos sobre tal rotor (4), como se representa en el primer caso en la figura 1 y en el segundo caso en la figura 2. As can be seen in the aforementioned figures, the platform of the invention is constituted by a plurality of modules (1) inter-coupled with each other to form a structure around the corresponding mast (2) of a wind turbine, as shown in Figures 1 and 2, so that this platform as a whole can be placed in correspondence with the lower end of the vertical blade (3) of the wind turbine and work on that end of the blade (3), or be placed in correspondence with the rotor itself ( 4) of the wind turbine to perform work on such a rotor (4), as shown in the first case in Figure 1 and in the second case in Figure 2.

Entre la estructura de la plataforma formada por los módulos Between the structure of the platform formed by the modules

(1) Y el propio mástil (2) van dispuestos unos distanciadores (5) que apoyan sobre la superficie externa del mástil (2) a través de elementos de rodadura (6), como se deja ver claramente en la figura 3. (1) And the mast itself (2) is provided with spacers (5) that rest on the outer surface of the mast (2) through rolling elements (6), as can be seen clearly in Figure 3.

Tal plataforma queda suspendida mediante dos parejas de cables a la base del rotor (4), como se representa en la figura 4, contando con respectivos motores para elevación de tal plataforma a 10 largo del propio mástil (2). Such platform is suspended by two pairs of cables to the base of the rotor (4), as shown in Figure 4, with respective motors for lifting such platform along the mast itself (2).

Por otro lado, se ha previsto que la plataforma en su conjunto incluya lateralmente dos brazos articulados (8, 9), éste último portador de una cesta (10) para el operario (7) encargado de realizar los trabajos, bien sobre la respectiva pala vertical (3) o bien sobre el rotor (4), o cualquier otro trabajo de mantenimiento del propio aerogenerador, con la especial particularidad de que el conjunto que forman ambos brazos (8, 9) con la On the other hand, it is planned that the platform as a whole includes two articulated arms (8, 9) laterally, the latter carrying a basket (10) for the operator (7) in charge of carrying out the work, either on the respective blade vertical (3) or on the rotor (4), or any other maintenance work of the wind turbine itself, with the special feature that the set formed by both arms (8, 9) with the

5 cesta (10), está capacitado de moverse tanto en elevación como en giro horizontal, a fin de situar al operario sobre la cesta (10) a la altura y lugar deseados. 5 basket (10), is able to move both in elevation and horizontal rotation, in order to place the operator on the basket (10) at the desired height and place.

Claims

1.-Modular platform for maintenance in

wind turbines, which being designed to be positioned at any height of the wind turbine mast, in order to allow repair, cleaning and general maintenance of both the blades and the wind turbine rotor itself, is characterized in that it is constituted by a plurality of modules conveniently related to each other forming a structure around the corresponding mast of the wind turbine, with the particularity that between said annular structure and the external surface of the mast are located separators with support on the outer surface of the mast by rolling elements; having also provided that on the lateral and external part of one of the modules of the structure of the platform, a first arm is articulated that at its end receives the articulation of a second carrying arm of a basket for the operator in charge of performing the tasks of maintenance and cleaning of both the blades and the rotor of the wind turbine, the set being formed by said two arms with the basket capable of both lifting and turning horizontally.

2.-Modular platform for maintenance in wind turbines, according to claim 1, characterized in that the structure that forms the platform is suspended from the base of the rotor by means of pairs of cables operated in pairs by means of a motor.