ES2362526B1 - TORRE ANDAMIO, REPARADORA - CLEANER FOR WIND AIRLINES. - Google Patents

Abstract

It is a scaffolding tower, repairer-cleaner for wind turbines, metallic structure, open and closed, semi-automatic, with robotic arm that holds a basket of variable shape and figure from three to infinite sides, according to needs. Having a security device said basket for immediate removal from the condition of the blades.

Description

(20) (Fig. 2), (Fig. 3), this truck (20) (Fig. 2), (Fig. 3)

Scaffolding tower, repair-cleaner for wind turbines. Technical sector

The invention is part of the technical procedure by which maintenance, repair, cleaning and all the necessary work on the wind turbine blades can be carried out through a basket that will carry the specific elements and devices necessary for each job, as well as the technicians who will use them, if necessary.

This basket is attached to a robotic arm, which is inside a structural element, which is responsible for the displacement of the robotic arm through the scaffolding tower. State of the art

Due to the need to keep the wind turbine blades in optimal condition and due to their high cost of repair in general, it is for this reason that we believe the technique that we will describe after the current one is necessary.

At present, several procedures are known by which maintenance, repair and cleaning work of the Wind Turbine Blades is carried out.

Once the decision of repair, maintenance or cleaning is made, the Aspa is lowered to the ground, by means of several large tonnage cranes, which must arrive from the base of the wind turbine to the anchor of the blade, to detach it from the rotor of the wind turbine

It is obvious to understand that this process is carried out after stopping said wind turbine to be able to lower the blade to the ground.

The work also has to be developed with very high disassembly and assembly costs, in addition to the rental of cranes, also rigging the decrease in wind turbine energy productivity. The blade once on the ground is repaired, replaced or cleaned according to the anomaly found, being the average time used in this process (depending on the problem), it ranges between 5 and 14 days. Thus the losses of time and material necessary in these works are very high, if compared with the procedure carried out by our invention.

With our invention, the technicians who would carry out the appropriate work to solve the different anomalies found (without mentioning the reduction of the possible associated risks, for not having had the Preventive maintenance), will move, achieving a true decrease in costs given the greater performance- wind turbine time not having to be idle for so long. Description of the invention

The present invention corresponds to a novel system to be able to carry out any type of work on the wind turbine blades without these having to be lowered to the ground, to perform said works.

The new system called repair-scaffolding tower-scaffold for wind turbines, will be able to carry out these maintenance and repair work on the blades, provided that it is located near the wind turbine tower, as described below.

The base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the tower has the following characteristics:

It has a hydraulic leveling system (21) (Fig. 2) (Fig. 3) consisting of extendable arms that leave the structure of the truck itself (20) (Fig. 2) (Fig. 3) which must be of supporting on the firm ground, to achieve the total stability of the truck (20) (Fig. 2), (Fig. 3) bearing the first section (25) (Fig. 3) of the scaffolding tower (1) ( Fig. 1).

This truck (20) (Fig. 2), (Fig. 3) for carrying out the works, is equipped with a 7500 liter water tank, (34) (Fig. 2), (Fig. 3) a group booster (35) (Fig. 2), (Fig. 3) and a generator set (36) (Fig. 2), (Fig. 3) for the power supply of the electrical system necessary to carry out the work of the blade cleaning (54) (Fig. 9), (Fig. 10) (Fig. 11). It also has a television circuit and a scanner system (37) (Fig.2) (Fig.3), to visualize the blades (54) (Fig.9), all this will be stored through an integrated computer circuit , in which it will remain recorded on the hard disk, to later individualize it on its disk, which will remain stored with No. ... of Wind Turbine, location of the air generator in UTM coordinates. and day of completion of work.

The base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower (1) (Fig. 1), is mounted through a shaft on a fork (22), (Fig. .2) (Fig. 3) which is fixed and is attached to the truck chassis (20) (Fig. 2) (Fig. 3).

This fork, (22) (Fig. 2) (Fig. 3) on which it will rotate, the base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding (1) (Fig. 1) is hoisted by means of a system of turning pulleys (23) (Fig. 2) (Fig. 3), motorized attached to the chassis of the truck (20) (Fig. 2), (Fig. 3) and to the base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower

(one)

(Fig. 1) until reaching its verticality.

The base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower (1) (Fig. 1) has a damping system

(38)

(Fig. 2) (Fig. 3) to brake the pulley system (23) (Fig. 2) (Fig. 3), so that once it has reached its working position it is locked.

The base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding (1) (Fig. 1) will reach its working position when it comes into contact with the wind turbine mast (31) (Fig. .1) (Fig. 2) (Fig. 3) (Fig. 5).

This contact is made by means of adhesive wheels (29) (Fig. 1) (Fig. 5) that are located at the top of the first section (25) (Fig. 3) of the scaffolding tower (1) ( Fig. 1), these wheels are positioned with a degree of rotation to be able to hug the wind turbine mast (31) (Fig. 1).

The base (24) (Fig. 1) (Fig. 2) (Fig. 3) (Fig. 4) (Fig. 5) of the scaffolding tower (1) (Fig. 1) is formed by a section of structure 10 meters high, the last 2 meters of the base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower (1) (Fig. 1) on all sides or closed sides (39) (Fig. 4); however, the remaining 8 meters are open

(40) (Fig. 4) on one of its sides (through which the different sections (19) (Fig. 5) that make up the scaffolding tower (1) (Fig. 1) will be introduced.

Externally, in the last two closed meters of the base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower (1) (Fig. 1) a fixed platform (27) will be placed (27) ( Fig. 2) (Fig. 3) which is accessed by a safety ladder (28) (Fig. 2) (Fig. 3) (Fig. 4) installed on the side of the base (24) (Fig. 2) (Fig. 3) (Fig. 4) of

3 EN 2362526A1 4

the scaffolding tower (1) (Fig. 1), this fixed platform (27) (Fig. 2) (Fig. 3), helps us to carry out the work of assembling and assembling all the components of the scaffolding tower ( 1) (Fig. 1).

The inside corners of the base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower (1) (Fig. 1) are cylindrical (18) (Fig. 4), for that they can turn the 12 convex guide wheels (17) (Fig. 4) that are attached to the corners of the base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower ( 1) (Fig. 1) which are held by a rectangular structure (41) (Fig. 4), being three per corner. These wheels will serve to help the reduction motors (26) (Fig. 4) in the displacement of the inner sections (19) (Fig. 5).

The metal sections (19) (Fig. 5) of the scaffolding tower (1) that are introduced through the base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower (1 ) (Fig. 1) to later be lifted by means of four reduction motors (26) (Fig. 4), which are located at the top of the base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower (1) (Fig. 1) just housed on the two sides adjacent to the open area of the base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower (1) (Fig. 1).

These sections (19) (Fig. 5) of the scaffolding tower (1) will be lifted by the motors (26) (Fig. 4) located at the base head (24) (Fig. 2) (Fig. 3) ( Fig. 4) of the scaffolding tower (1) (Fig. 1), by means of the rack system (16) (Fig. 5).

The sections (19) (Fig. 5) that are introduced into the base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower (1) (Fig. 1), as well as The base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower (1) (Fig. 1), are composed of a quadrangular metal structure 7.5 meters high, which is It is closed (42) (Fig. 5) on three sides and being part of an open side (43) (Fig. 5). At the ends of these sides we will find cylindrical tubes (44) (Fig. 5) that will facilitate the passage and help us to stiffen the structure of the scaffolding tower (1) (Fig. 1), to the working step of the system of displacement (12) (Fig. 6) of the robotic arm (13) (Fig. 7) (Fig. 8).

The inner corners (45) (Fig. 5) and outer

(46) (Fig. 5) of these sections are cylindrical in structure; the outer cylindrical corners (46) (Fig. 5) help us to turn on them the 12 convex wheels (17) (Fig. 4) that have the corners of the base coupled (24) (Fig. 2) (Fig. 2) (Fig. 2) .3) (Fig. 4) of the scaffolding tower (1) (Fig. 1) which are coupled to a rectangular structure.

The sections (19) (Fig. 5) introduced have a double zipper (16) (Fig. 5) on their left and right sides, which is the one that will be used for lifting.

In addition, these sections (19) (Fig. 5) have a zip inside (16) (Fig. 5) on the left and right side which is used to move the movement structure (12) internally (Fig. 6) of the robotic arm (13) (Fig. 7) (Fig. 8).

The first section (25) (Fig. 3) that will be hoisted inside the base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower (1) (Fig. 1) , is already located inside this. (Fig. 2) (Fig. 3).

In the upper part of this first section (25) (Fig. 3), two adhesive wheels (29) (Fig. 1) (Fig. 5) placed with a degree of rotation to be able to hug the wind turbine mast (31) are attached externally. ) (Fig. 1) and an electromagnet (30) (Fig. 1) (Fig. 5) to attach to the Wind Turbine tower (31) (Fig. 1).

In turn, this first section (25) (Fig. 3) incorporates the structural displacement section (12) (Fig. 6) of the robotic arm (13) (Fig. 7) (Fig. 8), with is included

The structural displacement section (12) (Fig. 6) of the robotic arm (13) (Fig. 7) (Fig. 8), is composed of a 6-meter high quadrangular metal structure, the first 2 meters and the last of the section of the structural displacement element (12) (Fig. 6) on all its closed sides (48) (Fig. 6); however, the remaining 3 meters are open (49) (Fig. 6) on one of its sides, through which the robotic arm (13) (Fig. 7) (Fig. 8) that holds the basket (11) will have movement ) (Fig. 9) (Fig. 10) (Fig. 11).

The corners of the structural displacement section (12) (Fig. 6) of the robotic arm (13) (Fig. 7) (Fig. 8) are cylindrical in shape (50) (Fig. 8) and they serve us so that on them They can turn the 12 convex wheels (47) (Fig. 5) that have the corners of all the sections (19) coupled (Fig. 5) that make up the tower-scaffold (1) (Fig. 1) and therefore facilitate the displacement of the bearing section of the robotic arm

(13)

(Fig. 7) (Fig. 8) inside the scaffolding tower

(one)

(Fig. 1).

These 12 inner wheels (47) (Fig. 5) are evenly distributed in the four inner corners of each section (47) (Fig. 5) of the scaffolding tower

(one)

(Fig. 1), that is, we will find three wheels

(47)

(Fig. 5) per corner of each section (19) (Fig. 5) of tower-scaffolding (1) (Fig. 1)

The structural displacement section (12) (Fig. 6) with the robotic arm (13) (Fig. 7) (Fig. 8), being inside the first section (25) (Fig. 3) of assembly of the base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower (1) (Fig. 1), will rise in height as sections (19) are coupled (Fig. 3) from the bottom of the base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower (1) (Fig. 1), until it reaches the desired height (Fig. 1).

Once the scaffolding tower (1) (Fig. 1) has reached the desired working height (Fig. 1), the structural displacement section (12) (Fig. 6) with the robotic arm (13) (Fig. 7) (Fig. 8) will be lowered to the base head (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower (1) (Fig. 1).

The sections (19) (Fig. 5) of the scaffolding tower (1) (Fig. 1) will carry the winds (32) (Fig. 1), adhesive wheels (29) (Fig. 1) (Fig. 5) and electromagnets (30) (Fig. 1) (Fig. 5) that are necessary for its stabilization and work safety. These winds (32) (Fig. 1) as well as the sticker wheels (29) (Fig. 1) (Fig. 5) and electromagnets (30) (Fig. 1) (Fig. 5) will be mounted in unison of the hoisting the scaffolding tower (1) (Fig. 1). The winds (32) (Fig. 1), will previously be fixed to a hydraulic turbine system with working tension which is fixed to the ground by means of a foundation using it as wind anchor

(33)

(Fig. 1). Before lowering the robotic arm

(13)

(Fig. 7) (Fig. 8).

The structural displacement section (12) (Fig. 6) is moved by means of two reduction motors (15) (Fig. 6) (Fig. 7) (Fig. 8) that are coupled to the structure of this section. The reduction motors (15) (Fig. 6) (Fig. 7) (Fig. 8) that have crowns (52) incorporated (Fig. 6) (Fig. 7) (Fig. 8) will be responsible for

5 EN 2362526A1 6

days of moving through the zippers

(16)

(Fig. 5) existing in the sections (19) (Fig. 5) of the scaffolding tower (1) (Fig. 1).

The structural displacement system (12) (Fig. 6) of the robotic arm (13) (Fig. 7) (Fig. 8) incorporates a structure with rotating wheels

(51)

(Fig. 8) that will be hugging and moving through the outer cylindrical tubes (44) (Fig. 5) of the open part (43) (Fig. 5) of the scaffolding tower (1) (Fig. 1) getting from this The working stiffening of both the tower and the robotic arm (13) (Fig. 7) (Fig. 8).

Once located at the top of the base (24) (Fig. 2) (Fig. 3) (Fig. 4) of the scaffolding tower (1) (Fig. 1), the robotic arm (13) (Fig. 7) (Fig. 8) will be placed horizontally to be able to attach the basket

(eleven)

working (Fig. 9) (Fig. 10) (Fig. 11).

The robotic arm (13) (Fig. 7) (Fig. 8) can perform vertical displacement maneuvers thanks to its serrated rotation system crowns (53) (Fig. 6) (Fig. 7) (Fig. 8) which carries inside the displacement structure (12) (Fig. 6), which is attached to this arm (13), this crown of the turning system (53) (Fig. 7) (Fig. 8) ( Fig. 9) performs its movements through two reducing motors (14) (Fig. 6) (Fig. 8) with brake that transmit their energy through crowns.

This robotic arm (13) (Fig. 7) (Fig. 8) and the crown of the turning system (53) (Fig. 6) (Fig. 7) (Fig. 8) of movement have a connecting rod system automatic leveling (2) (Fig. 7) to always achieve the horizontality of the basket (11) (Fig. 9) which will be linked to this robotic arm (13) (Fig. 7) (Fig. 8).

The basket (11) (Fig. 9) that is attached to the robotic arm (13) (Fig. 7) (Fig. 8), is a metal structure that is composed of several sections (3) (Fig. 9) coupled between yes, by tapered bearings

(4) (Fig. 9) and turning crowns (55) (Fig. 9), you can also adopt any shape or shape according to the needs for the work (Fig. 9) (Fig. 10) (Fig. 11) ).

These sections (3) (Fig. 9) (Fig. 10) (Fig. 11) of variable shape metal, have a walkway (5) (Fig. 9) to step on and safety railing (6), (Fig. 9) They support different supports for the installation of their different applications such as:

-

Cleaning system (7) (Fig. 9)

-

Scanning system (8) (Fig. 9)

-

Photographic system (9) (Fig. 9).

-

Repairs in general.

The Basket (11) (Fig. 9) (Fig. 10) (Fig. 11) also has a semi-automatic manual system with safety sensors (10) (Fig. 9) so as not to damage the blades (54) (Fig. 9). ) (Fig. 10) (Fig. 11) of the wind turbine. Similarly, the safety of workers is considered a priority, because if for any circumstance or reason they had to move the basket

(11) (Fig. 11) (from where they work) of the trajectory of the blades (54) (Fig. 11), could be carried out quickly and in the most effective way according to the circumstances.

Description of the drawings

To complete the description that is being 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 accompanied as an integral part of the description where The following is represented by way of illustration and not limitation:

Figure 1: Scaffolding tower, repair-cleaner for wind turbines.

Figure 2: Positioning of the base of the torreandamio at the foot of the wind turbine, with all its components.

Figure 3: Positioning of the base of the torreandamio at the foot of the wind turbine, with elevation of the first section with all its components.

Figure 4: Plan and front elevation of the base of the scaffolding tower through which the sections that make up the scaffolding tower are introduced.

Figure 5: Plan and front elevation of the sections of the tower-scaffolding.

Figure 6: Structural section of movement seen from the front with a robotic arm.

Figure 7: Structural section of movement seen from the right side with robotic arm.

Figure 8: Structural section of movement seen on the floor with robotic arm.

Figure 9: Plan view of the Scaffolding Tower, repair-cleaner for wind turbines, with position of the sections of the basket in the realization of the different works on the blades.

Figure 10: Plan view of the scaffolding tower, repair-cleaner for wind turbines, with position of the sections of the basket in the realization of the different works on the blades.

Figure 11: Plan view of the scaffolding tower, repair-cleaner for wind turbines, with different positions of the sections that make up the basket, until its total opening.

7 EN 2362526A1 8

Claims (2)

1. Repair-cleaning scaffolding tower for wind turbines characterized in that it comprises the base (24) of the scaffolding tower (1), structural displacement section (12) of the robotic arm (13), robotic arm (13), the basket (11), winds (32), wind anchor (33), sticker wheels

(29)

and electromagnet (30).

-Base (24) of closed metal structure (39), with round corners (18) and with convex wheels

(17)

inside its structure, being an open side (40), to introduce the different sections (19) of the scaffolding tower (1), with a closed metal structure (42), with round corners (45, 46) and convex wheels (47) inside the section, it has an open side (43) being the ends cylindrical

(44)

for the passage of the wheels (51) of the structural displacement section (12).

-

Structural section of displacement (12) that moves through the interior of the scaffolding tower (1) and consists of the closed metal structure (48), and has an open side (49), with round corners (50), system of rack (16), motors (15) and crowns (52). The open side (49), allows the movement of the robotic arm (13).

-

Robotic arm consisting of a crown of the rotation system (53) and automatic leveling rod system (2).

-

Basket (11) composed of semi-automatic manual safety system (10) for workers and blades (54) and several sections (3) of metal structure coupled to each other, by tapered bearings (4) and turning crowns (55) that They are coupled parallel to the blade. The sections (3), consist of a walkway (5), security elements (6), and cleaning systems (7), scanning systems (8) and photographic system (9).

SPANISH OFFICE OF THE PATENTS AND BRAND Application no .: 200900768 SPAIN Date of submission of the application: 10.03.2009 Priority Date: REPORT ON THE STATE OF THE TECHNIQUE 51 Int. Cl.: F03D1 / 00 (2006.01) RELEVANT DOCUMENTS

Category

Documents cited Claims Affected

TO

WO 2004081373 A2 (AEROCONCEPT INGENIEURGESELLSCHAFT) 23.09.2004, figures & summary of the EPODOC database. Recovered from WPI, AN 2004-699470. one

TO

EN 2244292 A1 (PERI) 01.12.2005, the whole document. one

TO

DE 102007003000 A1 (SHEPPARD) 20.03.2008, figures & summary of the EPODOC database. Recovered from WPI, AN 2007-161672. one

TO

WO 2005054672 A1 (PATENTGRUPPEN APS) 16.06.2005, the whole document. one

TO

EN 2257558 T3 (WIND SYSTEMS A / S VESTAS) 02.22.2005, the whole document. one

Category of the documents cited X: of particular relevance Y: of particular relevance combined with other / s of the same category A: reflects the state of the art O: refers to unwritten disclosure P: published between the priority date and the date of priority submission of the application E: previous document, but published after the date of submission of the application

This report has been prepared • for all claims • for claims no:

Date of realization of the report 24.06.2011

Examiner V. Anguiano Mañero Page 1/4

REPORT OF THE STATE OF THE TECHNIQUE Application number: 200900768 Minimum documentation sought (classification system followed by classification symbols) F03D Electronic databases consulted during the search (name of the database and, if possible, terms of search used) INVENES, EPODOC, WPI State of the Art Report Page 2/4  WRITTEN OPINION Application number: 200900768 Date of Completion of Written Opinion: 06.24.2011 Statement

Novelty (Art. 6.1 LP 11/1986)

Claims Claims one IF NOT

Inventive activity (Art. 8.1 LP11 / 1986)

Claims Claims one IF NOT

The application is considered to comply with the industrial application requirement. This requirement was evaluated during the formal and technical examination phase of the application (Article 31.2 Law 11/1986).  Opinion Base.- This opinion has been made on the basis of the patent application as published. State of the Art Report Page 3/4  WRITTEN OPINION Application number: 200900768 1. Documents considered.- The documents belonging to the state of the art taken into consideration for the realization of this opinion are listed below.

Document

Publication or Identification Number publication date

D01

WO 2004081373 A2 (AEROCONCEPT INGENIEURGESELLSCHAFT) 23.09.2004

D02

ES 2244292 A1 (PERI) 01.12.2005

D03

DE 102007003000 A1 (SHEPPARD) 03.20.2008

D04

WO 2005054672 A1 (PATENTGRUPPEN APS) 06/16/2005

D05

ES 2257558 T3 (WIND SYSTEMS A / S VESTAS) 02/23/2005

2. Statement motivated according to articles 29.6 and 29.7 of the Regulations for the execution of Law 11/1986, of March 20, on Patents on novelty and inventive activity; quotes and explanations in support of this statement The application complies with the patentability requirements established in articles 6, 8 and 9 of patent law 11/1986 for the following reasons: The first claim describes a repair-cleaning scaffolding tower for wind turbines characterized because it comprises the following parts: a) Base of closed metal structure. b) Structural section of displacement. c) Robotized arm. d) Basket composed of security system. The documents cited in the international search report are the following: WO 2004081373 A2, D01. ES 2244292 A1, D02. DE 102007003000 A1, D03. WO 2005054672 A1, D04. ES 2257558 T3, D05. The closest document of the prior art is D01, which describes a platform for maintenance work in turbines consisting of a structural section of movement, basket composed of safety systems and arms. Be difference of the patent application in the platform - base, robotic arm and semi-automatic safety systems in the basket described in the application. Document D02 describes a lifting device for people for maintenance and cleaning of wind turbine consisting of a closed metal structure base as well as means to climb the wind turbine and section structural displacement. The differences with the patent application document are that you do not have a robotic arm and basket security systems, completely different from those described in the request for patent. Document D03 describes a platform platform movable and movable obliquely from a base at the foot of the wind turbine consisting of structured displacement arm, differing from the patent application in the section structural displacement, robotic arm (not described by D02) and in safety systems. Document D04 describes a method and apparatus for cleaning and maintaining a wind turbine consisting of a cleaning device, tower-movable platform and structural displacement section. Describe a device of cleaning by means of carbon dioxide by means of nozzles. In turn, the platform is linked by tower to a vehicle. It differs in the structure of the platform (structure of the gateway) security elements and base. Finally, D05 describes methods of handling wind turbine blades and mounting blades in a wind turbine, system and grip unit to manipulate a wind turbine blade, but without any operator. State of the Art Report Page 4/4