WO2008004195A2

WO2008004195A2 - Method and packing for transporting rotor blades

Info

Publication number: WO2008004195A2
Application number: PCT/IB2007/052618
Authority: WO
Inventors: Phillips Antonio Da Costa Lemos
Original assignee: Tecsis Tecnologia E Sistemas Avançados Ltda
Priority date: 2006-07-04
Filing date: 2007-07-04
Publication date: 2008-01-10
Also published as: WO2008004195A3; BRPI0602764B1; BRPI0602764A

Abstract

Method and packing for transporting rotor blades related to the technical field of packings specially adapted for elements of large size such as wind rotor blades. The technical problem is the need of a low cost intermodal method and packing, adjustable to different obstacle heights. The solution basically consists of a method that comprises the steps for fitting the blade in mountings; transport the packed blade in said mountings on a transportation means, positioning the mounting in a way so that the maximum blade width is relatively in a horizontal plane; and in an another step, transport the blade fitted in said mountings on another transportation means, positioning the mounting in a way so that the maximum blade width is relatively in a vertical plane. In another aspect, the problem is also solved by the respective packing.

Description

Description METHOD AND PACKING FOR TRANSPORTING ROTOR

BLADES

Technical Field

[1] The present invention refers to the technical field of containers, packing elements or packings specially adapted for special articles or materials, more specifically to elements of large size such as wind rotor blades. Background Art

[2] Blades for wind power generators (hereinafter referred to as 'blades') with significantly large dimensions such as the length (considering the longitudinal axis) longer than about 45m, and width (considering the maximum chord line) longer than about 3m are already manufactured in large numbers. However, the locations where the blades will be installed generally require them to be transported from the plant by highway, railway, sea, or river means.

[3] The transportation may be limited due to various restrictions such as: height of viaducts, tunnels, bridges, and other obstacles with limited height (hereinafter referred to as 'limited height obstacles'); very accentuated curves; ship cargo space, among others. In addition to the problems occurring due to the transportation per se, there are blade loading and unloading operational difficulties, since that every time that it is necessary to change the transportation means - for example, from a truck to a train, or from a truck to a ship, and vice versa - depending on the type of packing employed, especial equipment is required for handling the large size blades.

[4] In the background art there are various products and methods intended for solving the problems raised from the transportation and handling of blades. In order to facilitate the understanding of the products and methods in the background art as well as in the present invention, and to standardize the terms used, a typical blade is shown in Fig. 1, where, for illustration purposes, axes Jt, y, and z are defined, of which axis x is equivalent to the blade longitudinal axis, formed by the phantom line from the blade root (that is, the portion of the blade that is connected to the hub) approximately going towards the tip of the blade (that is, opposite end to the one that connects to the hub); axis 3; approximately equivalent to the blade chord line (that is, the width w of the blade profile); and axis z, approximately equivalent to the blade thickness t.

[5] The international application published under no. WO03/076307A1 describes a system of containers with corrugated walls, and each container may be coupled to another container. The blade is then placed inside of one or more containers, according to the size of said blade. To prevent the blade from bouncing inside of the container, it is preferred to attach the tip of the blade to a loop band; and the blade root to a mechanism that, besides fixing the blade, permits to incline it so that axis 3; of said blade remains diagonally with relation to the smaller container face.

[6] On the other hand, patent no. US6983844B2 describes a method and packing for the transportation of long length items such as blades. The method basically consists of positioning the tip of a first blade into a first packing, next to the root of a second blade that is positioned on the said first packing; and positioning the root of the first blade into a second packing next to the tip of the second blade in the second packing. The packing sizes are, preferably, that of standard containers, and may be connected to one another.

[7] The transportation vehicle described in the patent application published under no.

US20050031431A1, for example, permits the transportation of blades with large dimensions by means of a device that enables to rotate the blade over the x axis, making it possible to pass through obstacles with height limitation.

[8] Another blade transportation method is described in the international application published under no. WO2006/000230A1, basically consisting of coupling the blade root to a hydraulic device that enables it to be raised or lowered for passing through declivitous or winding roads.

[9] The international application no. PCT/EB2005/054164, from the same applicant as this application, includes a set of structures for handling, transporting, and storing the blades, composed of at least two structures, each one of them with a peripheral mounting, characterized by having removable or articulated anchorage arms, and, additionally, protection covers at the tips.

[10] Other methods and devices for transporting and handling blades are described, for example, in documents WO03/104645A1, US2004/0091346A1, JP2004243805 and WO2005/005286A1. A brief explanation, with photos, on the difficulties encountered and solutions adopted in this technical field may be found in article The Transport Game, published in Vestas Global magazine, No.05, Year 03, April 2006, pg.12-17, Vestas Wind Systems A/S. Disclosure of Invention Technical Problem

[11] The solutions mentioned in the documents above and other existing in the background art; however, do not meet in a convenient and efficient manner the expectations existing in the technical field of the present invention.

[12] For example, the container described in WO03/076307A1 presents various disadvantages, such as: (a) as each module has the shape of a relatively rectangular box with walls made of a corrugated metal, such as steel, a large quantity of raw material and manufacturing activities will be required to produce a module; (b) the protection along the entire extension of the blade with these extremely resistant modules is generally unnecessary, because the blade is already designed to support bad weather, including accidents, under normal conditions of use; (c) the blade can not be simply packed inside of the box, and left loose, because even though it supports bad weather and moderate accidents, the oscillations, vibrations, and trepidation that occur during the transportation would make the blade hit repeatedly the sides and bottom of the box, what would lead to serious damages to the blade, this is so much so that a loop band and a fixing mechanism have been included in the system, which contribute to increase even more the packing price; (d) even though the publication mentions that currently there are blades being manufactured with lengths above about 48m and 3.6m in width, and that the modules may have the most various sizes relations, since the module itself is a complex and expensive structure, this concept may only be economically feasible if a few packing modules are made according to some given standard sizes covering the widest range of blade size relations; therefore, due to the variety of existing blade sizes, the use of the space provided by this method is not efficient; (e) due to the container weight, made of corrugated steel walls, there is an increase in freight costs; (f), and finally, it is worth mentioning that the width limit of a blade packaged in the adopted container according to this method is determined by the container face diagonal line, consequently, the container height is proportional to the maximum blade width.

[13] Now, the method and packing system described in US6983844B2, even though it was designed by considering that the use of interconnectable containers with standard sizes as a rule represents a waste of materials, also has many disadvantages such as: (a) departs from the premise that normally a truck can only transport two blades simultaneously, but in reality, currently, blades with thicknesses larger than those of the width of a truck are already becoming common; (b) in view of the previous premise and the consideration that it is not necessary to pack the entire blade extension, the packing is foreseen to support the ends only, leaving the mid portion suspended without a support, what may be very inconvenient for very long blades, since the blade is not designed to withstand bending stress under these conditions; (c) therefore, since blade axis y should remain vertically, in case of very long blades, the highway transportation using this method is limited due to obstacles with limited height which normally is within the range of 4m to 5m; (d) and finally, it would be necessary at least two cranes to lift and handle the blade, what in case of very long blades may be unfeasible due to the non-existence of adequate cranes in pairs in the ports.

[14] In short, the packing and methods shown in WO03/076307A1 and US6983844B2 are not adequate for large size blades, especially with regard to the blade w width, when positioned over a transportation means, they exceed the height limit of obstacles existing in the highway routes.

[15] For the purpose of solving this height limit problem during the highway transportation, as previously explained, the vehicle described in US20050031431A1 permits to rotate the blade over axis x so that the blade width w does not become a limiting factor before going through a tunnel, permitting, as mentioned in the publication, the transportation of blades with width w larger than 5m. However, the vehicle described has various disadvantages such as: (a) the mechanism to rotate a blade of this size, which is generally very heavy, should be very robust and provided with specialized mechanics, requiring a specific manufacturing machinery, and, as far as it is known, it is not available in a blade plant, therefore, accounting for a high cost item; (b) since the use of the vehicle is restricted to the highway transportation, it is necessary an additional packing to be handled by a crane, and a different packing for the sea transportation; (c) furthermore, if the mechanism is burdensome to build, it is necessary to bring it back to the blade plant. The method and transportation vehicle described in WO2006/000230A1, besides having the same deficiencies as those indicated in the publication above, also present the aggravating factor of transporting the blade in suspension with its 3; axis in the horizontal position, notwithstanding that the blade is not designed to bear bending stresses under these conditions. Furthermore, PCT/IB2005/054164, from the same applicant as this application, which presents various advantages over further applications, may have some limitations with handling considering the application on blades with very big dimensions. The limitation is associated mainly with the length of the blades, which compels the described supporting structures to be too far apart from each other, making difficult the use of port standard handling equipment.

[16] Therefore, as noted, it is still necessary to have a transportation method and packing that at the same time: (a) are intermodal, enabling land transportation, for example, by both railways and highways, where the height of obstacles is critical; and with regard to sea transportation, for example, by ships; (b) enable the safe handling of the blade for the execution of the load and unloading procedures through the use of standard equipment available in the ports and other locations, as required; (c) enable the manufacturing of the packing itself without very complex resources, for example, by using the resources that a typical blade plant or similar facility has normally at hand, so that the packing manufacturing does not necessarily need to be outsourced; (d) are either disposed or reused according to the convenience, on a per case basis, by reasons of being more economic and flexible. Technical Solution

[17] To solve the related technical problems, certain embodiments of the present invention are directed to a method of transportation of rotor blades that comprises the steps of fitting a first end of a blade into a first mounting, where this first end is a portion next to the root of said blade; and fitting the other end of the blade into a second mounting, where this second end is a portion that extends from the tip of the blade and the first mounting; transport the blade fitted into said mountings in a transportation means, positioning the mountings in a way so that the maximum blade width is relatively in the horizontal plane to enable it to pass under obstacles with height limitations; and in a second step, transport the blade fitted into the said mountings in another transportation means, positioning the mountings in a way so that the maximum blade width remains relatively in the vertical plane. In an additional embodiment of the present invention, the method includes a step that consists of fitting the blade into a third mounting positioned between the first and second mountings, or, preferably, the third mounting can be positioned in the portion corresponding to the center of gravity of the set formed by the blades and the mountings. In another configuration, the transportation means on which the mountings are positioned in a way so that the maximum blade width is relatively in a horizontal plane is a land transportation means such as a highway or railway vehicle; and the transportation means on which the mountings are positioned in a way so that the maximum blade width is relatively in a vertical plane is a sea or river transportation means, such as a ship or barge. Additionally, it is possible to place over the first and second mountings that are holding the said blade a fourth and fifth mountings which are holding a second blade, with the fourth mounting resting onto the first mounting and the fifth mounting resting onto the second mounting. Additionally, the first and second mountings which are holding the first blade, next to a second blade fitted in a fourth and fifth mountings.

[18] In another aspect, certain embodiments of the present invention are directed to a rotor blade transportation packing that comprises at least two mountings, where each mounting is provided with the means for fitting the blade, and the means for supporting each mounting in the transportation means with the blade in a relatively horizontal position and with the blade in a relatively vertical position. The means for fitting the blade can be fixing elements, such as belts, articulated arms, loop bands, a resilient material or other appropriate means. The means for supporting each mounting on the transportation means can be the parts of the external mounting structure themselves. In an additional embodiment of the present invention, the packing for the transportation of wind rotor blades includes a third mounting, positioned next to the center of gravity of the set formed by the blade and the mountings. The said third mounting may consist of a rigid material with the internal face lined with a damping material and provided with at least one hole, perpendicular to the blade 3; chord line axis. The said third mounting can have the format of a circumference, oval, ellipsoid or another appropriate format, depending on the shape of the blade in the center of gravity of the set formed by the blade and the mountings. Furthermore, the said mountings may support the stacking of other sets formed by the blade and mountings, one on top of the other. Advantageous Effects

[19] The inventive concept of the embodiments of the present invention solves the technical problem previously mentioned. When adopting a solution with mountings that permits the transportation of the blade in both positions relatively horizontal and vertical with relation to axis y, it becomes possible to transport blades with larger w widths by land transportation means, without generating excessive packing costs, but at the same time without increasing the volume required during the sea transportation or the need of a supplementary packing. Moreover, the adoption of an intermediate mounting positioned at the center of gravity of the set formed by the blade and the mountings enables the use of standard port equipment, specially the use of only one crane, what reduces significantly the total operation cost. Furthermore, the use of only one crane for handling the blade from the center of gravity of the set is less aggressive for the blade structure, since when using two cranes, one at each end, the blade becomes subject to torsion stresses for which it is not designed to support.

[20] Additionally, since the packing allows the blade to be transported both in a relatively horizontal and vertical positions with relation to axis y, the result is a versatile, intermodal, and yet inexpensive packing. The set positioned with blade axis y relatively in the horizontal plane enables the transportation in locations with height restriction. On the other hand, the set positioned with blade axis y relatively in the vertical plane permits to reduce the space occupied in ship decks and, therefore, reduces the transportation costs, since the restriction in ships, as a rule, is only the thickness t and not the height.

[21] Under certain circumstances, the vertical position also enables the transportation in highways with irregular paving, because the blade features greater rigidity in the vertical position, what reduces the amplitude of blade deformations while passing over the irregularities, and, thereby, diminishing possible damages to the blade. To transport the blade in the vertical position on roads next to the blade installation location is also advantageous, for this position diminishes the total set width, enabling the passage through accentuated curves and reducing the possibilities of damages to the blade.

[22] Therefore, considering the solutions existing in the background art, it is necessary to have systems that allow rotation in the set itself formed by the blade and/or mountings. With the present invention the rotation can be provided by using common cranes available in these locations, thereby, enabling a cost reduction.

[23] Furthermore, since the packing itself does not have hydraulic and/or other complex mechanisms, it can be manufactured in the blade plant, using resources that are normally available in this type of plant. Also, since the packing can be manufactured in a way capable of supporting the bearing points, it is possible to stack various other sets formed by the blade and mountings, one on top of the other, reducing the space occupied in storage areas and on the ships.

[24] In order to obtain a better use of the space while enabling the passage through obstacles, some solutions in the background art consider the use of a packing model for highway transportation and another for sea transportation. This way, in addition to the cost associated with two packing sets, there is also the additional cost incurred with personnel and equipment used for transferring the blades from one packing to another. On the other hand, the present invention provides a significant cost reduction, in addition to reducing the transportation time.

[25] In sum, the present invention is significantly advantageous, because it provides a low cost method and intermodal packing, adjustable to different obstacle heights. Description of Drawings

[26] The drawings that accompany this description are not intended for providing an accurate reproduction to the scale. On the drawings, each identical or similar component illustrated in the various figures is represented by a respective numeral. For clarity purposes, not all components are necessarily referred to on each drawing. To facilitate the understanding, the axes are represented in some figures.

[27] FIG. 1 is an isometric view of a typical blade.

[28] FIG. 2 is a front view of a blade accommodated on a truck with the packing according to the present invention, in which the blade axis y is in a relatively horizontal position.

[29] FIG. 3 is a front view of a first mounting with a blade according to the present invention, in which the blade axis y is in a relatively horizontal position.

[30] FIG. 4 is a front view of two packing columns with blades stacked on top of each other, in which axis y is in a relatively vertical position.

[31] FIG. 5 is a front view of the third mounting with the representation of the blade cross section. Best Mode

[32] A preferred embodiment of the invention is described herein as an embodiment wherein the packing is composed of a first mounting positioned next to the blade root; a second mounting positioned near the center of the blade; and a third mounting positioned near the center of gravity of the set formed by the blade and mountings, and said third mounting consisting of a rigid material with the internal face lined with a damping material, provided with many holes perpendicular to the blade y chord line axis. When rested on a land transportation means, the first and second mountings keep their respective lower external faces in contact with said transportation means, and the blade is positioned in a way so that axis 3; is relatively in the horizontal plane; however, when the first and second mountings are positioned on another transportation means, one of the mounting side faces assumes the lower face position and remain in contact with this other said transportation means, and the blade is positioned in a way so that axis 3; is relatively in the vertical plane. Mode for Invention

[33] This invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Also, the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting. The use of 'including', 'comprising', or 'having', 'containing', 'involving', and variations thereof herein, is meant to encompass the items listed thereafter and equivalents thereof as well as additional items.

[34] FlG. 1 is an isometric view of a typical blade (1). Since the blade shape depends on a series of factors, and it is designed in a customized manner, it is to be appreciated that the illustrated design is exemplificative. To facilitate the understanding, this figure shows the definition of axes Jt, y, and z: of which axis x is equivalent to the blade longitudinal axis, formed by the phantom line from the blade root (that is, the portion of the blade that is connected to the wind hub) going towards the tip of the blade (that is, opposite end to the one that connects to the hub); axis 3; is equivalent to the blade chord line (that is, width w of the blade profile); and axis z, equivalent to the blade thickness t

[35] FlG. 2 is the front view of a blade (1) accommodated on a truck (2) with the packing according to one of the embodiments of the present invention, in which blade (1) axis 3; is in a relatively horizontal position. A position relatively horizontal, in this context, is a position in which the blade (1) axis y, or more specifically, the blade width w is not exactly in the vertical plane at the point of maximum width; but the blade (1) itself is in a position that permits the vehicle to go under an obstacle with height limitations. To facilitate the understanding, the term 'packing' in this context means a set of mountings which, in case of FlG. 2 consists of a first mounting (3) positioned next to the blade (1) root, a second mounting (4) positioned approximately between the first mounting (3) and the blade (1) tip; and a third mounting (5) positioned between the first and second mountings (1). The first (3) and second (4) mountings can have different formats and structures, according to the blade geometry and other factors.

[36] FlG. 3 is a front view of a first mounting (3) with a blade (1) according to one of the embodiments of the present invention, in which the blade (1) axis 3; is in a relatively horizontal position. In the specific case of FlG. 3, the position relatively horizontal is approximately 32.5° with relation to the ground. This configuration can be more adequate for land transportation, since the blade (1) width w is displaced from a precisely vertical position, resulting in a set capable of going through obstacles with height limitations. The first mounting (3) is provided with the means for accommodating the blade (1) and for supporting it during its transportation in both relatively horizontal and relatively vertical positions. In the case of FlG. 3, the blade (1) accommodation means are the internal mounting (3) structure itself, but these means can be fixing elements, such as belts, articulated arms, loop bands, a resilient material or any other mechanism, device, or element capable of providing an adequate blade (1) support. The mounting (3) support means in the transportation means (2), in case of F1G.3, it is the mounting (3) external structure base itself, but other equivalent means capable of executing the support function can be employed.

[37] FlG. 4 is a front view of one embodiment of the present invention wherein two packing columns with blades (1) and mountings (3) are stacked on top of each other, in which axis 3; is in a relatively vertical position. A position relatively vertical, in this context, is a position in which the blade (1) axis y, or more specifically, the blade width w is not exactly in the horizontal plane at the point of maximum width; but the blade (1) itself is in a position that occupies the smallest surface area of the transportation means. This configuration may be more adequate for sea or river transportation, since the packing results in a set that occupies a smaller area in a ship or barge.

[38] Additionally, it is possible to place over the first (3) and second (4) mountings, that are holding the said blade (1), a fourth (8) and fifth mountings which are holding a second blade (7), with the fourth mounting (8) resting on the first mounting (3) and the fifth mounting resting on the second mounting (4) which contain a first blade (1), next to a second blade (7) fitted into a fourth (8) and fifth mountings. In an equivalent manner, it is possible to stack the packings in opposite directions, in such a way so that the root of a first blade (1) remains under the tip of a second blade (7), distributing the loads, and making the set of stack more stable and balanced.

[39] FlG. 5 is a front view of an exemplary embodiment of a third mounting (5) with the blade (1) cross section profile illustrated by a phantom line. The third mounting (5) is positioned near the center of gravity of the set formed by the blade (1) and the mountings. The third mounting (5) can consist of a rigid material with the internal face lined with a damping material. Additionally, the third mounting (5) is provided with at least one hole (6) perpendicular to axis 3; for connecting the equipment that will effectively rotate the set formed by the blade (1) and the mountings or the coupling of the equipment used for handling the set formed by the blade (1) and the mountings. The third mounting itself can have the shape of a circumference or, alternatively, an oval, ellipsoid or another appropriate format, depending on the shape of the blade (1) around the center of gravity of the set formed by the blade (1) and the mountings. In the example of FlG. 5, the third mounting (5) is provided with a series of holes (6), so that, regardless of the position in which the set formed by the blade (1) and the mountings is, that is, either in the relatively horizontal position or in the relatively vertical position, the connection of the equipment used for handling the said set can be made easily. The mountings can assume different configurations of sizes, including container standard sizes or customized sizes, according to the blade (1) shape.

[40] In yet another aspect, the present invention can be executed by an embodiment consisting of a method that comprises the steps of fitting the first end of a blade (1) into a first mounting (3), where this first end is a portion next to the root of said blade (1); and fitting the other end of the blade into a second mounting (4), where this second end is a portion that extends from the tip of the blade (1) to the first mounting (3); transport the blade (1) fitted into said mountings (3) and (4) over a transportation means, for example, a truck (2) positioning the mountings (3, 4) in a way so that the maximum blade width (1) is relatively in the horizontal plane to enable it to pass under obstacles with height limitations; and in another step, transport the blade (1) fitted into the said mountings (3) and (4) on another transportation means, for example, a ship, positioning the mountings (3) and (4) in a way so that the maximum blade (1) width remains relatively in the vertical plane. The specific portions of the blade (1) ends which are accommodated in mountings (3) and (4) depend on the blade geometry and other factors such as the transportation means and the route to be traveled.

[41] In an additional embodiment of the present invention, the method includes a step that consists of fitting the blade (1) into a third mounting (5) positioned between the first (3) and second mountings (4), or, preferably, the third mounting (5) can be positioned in the portion corresponding to the center of gravity of the set formed by the blade (1) and the mountings (3), (4) and (5). Industrial Applicability

[42] The various configurations of the present invention may be used by any wind rotor blade industry, as well as the entire production chain and support involved during the loading, unloading, and transportation logistic procedures. The packings may be manufactured by the blade industry itself or by other industries.

[43] Therefore, after describing the various aspects of at least one configuration of this invention, a skilled technician specialized in this field may easily and quickly find a large number of further changes, modifications and improvements. These changes, modifications, and improvements are intended to be an integral part of this disclosure, and to be within the scope of the invention. Accordingly, the precedent description and drawings are for explanation purposes only.

Claims

[1] 01. Method for transporting rotor blades characterized by comprising the steps of fitting a first end of a blade into a first mounting, wherein this first end is a portion next to the root of said blade; and fitting the other end of the blade into a second mounting, wherein this second end is a portion localized between the tip of the blade and the first mounting; transporting the blade fitted into said mountings on a transportation means, positioning the mountings in a way so that the maximum blade width is relatively in the horizontal plane to enable it to pass under obstacles with height limitations; and transporting the blade fitted into the said mountings on another transportation means, positioning the mountings in a way so that the maximum blade width remains relatively in the vertical plane.

[2] 02. Method for transporting rotor blades according to claim 01 characterized by including a step of fitting the blade into a third mounting positioned between the first and second mountings.

[3] 03. Method for transporting rotor blades according to claim 01 characterized by including a step of fitting the blade into a third mounting positioned at the center of gravity of the set formed by the blade and mountings.

[4] 04. Method for transporting rotor blades according to claim 01 characterized by the transportation means on which the mountings are positioned in a way so that the maximum blade width is relatively in a horizontal plane is a land transportation means such as a highway or railway vehicle; and the transportation means on which the mountings are positioned in a way so that the maximum blade width is relatively in a vertical plane is a sea or river transportation means such as a ship or barge. [5] 05. Method for transporting rotor blades according to claim 01 characterized by placing over the first and second mountings, that are holding the said blade, a fourth and fifth mountings which are holding a second blade, with the fourth mounting resting on the first mounting and the fifth mounting resting on the second mounting. [6] 06. Method for transporting rotor blades according to claim 01 characterized by placing the first and second mountings, which are holding a first blade, next to a second blade fitted in a fourth and fifth mountings. [7] 07. Packing for transporting rotor blades characterized by comprising at least two mountings, wherein each mounting is provided with the means for fitting the blade, and for supporting each mounting in the transportation means with the blade in both relatively horizontal and relatively vertical positions. [8] 08. Packing for transporting rotor blades according to claim 07 characterized by the means for fitting the blade being fixing elements such as belts, articulated arms, loop bands, or a resilient material. [9] 9. Packing for transporting rotor blades according to claim 07 characterized by the means for supporting each mounting on the transportation means being the parts of the external mounting structure itself or parts of the mounting. [10] 10. Packing for transporting rotor blades according to claim 07 characterized by including a third mounting positioned near the center of gravity of the set formed by the blade and mountings. [11] 11. Packing for transporting rotor blades according to claim 10 characterized by the third mounting being constituted of a rigid material with the internal face lined with a damping material. [12] 12. Packing for transporting rotor blades according to claim 10 characterized by a third mounting provided with at least one hole, perpendicular to the blade y chord line axis. [13] 13. Packing for transporting rotor blades according to claim 10 characterized by the third mounting having the shape of a circumference, an oval, ellipsoid or another appropriate format, depending on the shape of the blade around the center of gravity of the set formed by the blade and the mountings. [14] 14. Packing for transporting rotor blades according to claim 07 characterized by the mountings being capable of supporting the stacking of other sets formed by the blade and mountings, one on top of the other.