奥地利专利AT510694A4 MODULE FOR HOLDING AT LEAST ONE POD

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专利摘要:
The present invention relates to a module (1) for holding at least one sleeve (17) in a recess, wherein it has two side surfaces (2, 3), an upper (4) and a lower (5) surface and at least one end surface (6 ), wherein the upper (4) and lower (5) surfaces are of different widths or arcs in their cross-section, and the side surfaces (2, 3) are of equal height, and when attached to a second module (8), which optionally also can hold at least one sleeve (17) is coupled by its side surfaces (3, 9), the sum of the angle (a) between the optionally imaginary flat side surface (12) of the one module (1) and the tangent (10 ) to its upper surface (4) at the intersection (A) with the side surface (3) and the angle (β) between the optionally imaginary flat side surface (13) of the other module (8) and the tangent (11) to its upper surface ( 15) at the intersection (B) with the side surface (9) mi At least 180 degrees and / or a variety of modules (1), optionally if they hold the sleeves (17) form at least a portion of a circular ring or a complete circular ring.
公开号:AT510694A4
申请号:T88/2011
申请日:2011-01-21
公开日:2012-06-15
发明作者:Moeller Larsen Flemming；Johannes Moser；Bruno Serge Boursier
申请人:Hexcel Holding Gmbh；Hexcel Corp；
IPC主号:

专利说明:

1 1
The present invention relates to a module for holding at least one sleeve.
The large wind turbine blades of today and in the future require a safe and reliable 'root end' to be securely mounted to the hub of the wind turbine. The root end must be strong and of high uniform manufacturing quality to ensure safe and reliable blade-to-hub load transfer when the turbine is exposed to strong winds and therefore heavy loads in service as well as high wind speeds (typically over 25 m / s). Sec.) Is stopped. Furthermore, a high quality and strong, lightweight, easy to manufacture solution will be beneficial when it comes to the large wind turbine blades being developed for even larger turbines in the future.
Today's wind turbine blades are dependent on suppliers with different root concepts, either well-known concepts or their own developed and patented concepts, which differ in the design, the manufacturing processes and the material used to make the root sections. Some are very heavy and require large amounts of material to produce, while others are optimized in terms of material consumption, resulting in reduced root section weight. Further, some manufacturing concepts are very demanding, as the amounts of material to be processed, the number of subsequent processing operations to make the root section, and manual labor are very extensive.
Depending on the design and manufacturing process, the quality of the root sections is limited by the load transfer of the material used, the quality of the interfaces created by the manufacturing process, and the material responsible for transferring the load between different components and materials. Most of the material combinations used are steel, adhesive and / or laminates, ie infusion and prepreg material.
In general, the most critical material interfaces in root sections are e.g. for bonded (adhesive) and laminated solutions, the adhesive bond between the steel sleeves and
FOLLOWING • ♦ * ·········· «t t« · + · t - 2 -...
Sheet / root laminate, or the laminate interface in direct contact with the steel sleeve, or for mechanical solutions the area pressure and load transfer through the remaining blade root structure after drilling the holes for the cross pin (steel) and the threaded bolt (steel) for mounting to the hub.
The mechanical properties of the used materials to be joined are the limiting factor for the bonded interface, which further depends on the strength of the adhesive itself, the strength of the other adjoining materials to be bonded, adhesive surface and geometry to be bonded, adhesive film thickness, cleanliness of the surfaces to be bonded, and Ability of the adhesive to adhere to materials.
The process of achieving the proper interface quality is critical to the quality and mechanical performance of the bonded interface. Further, the process should ensure consistent process quality through the manufacturing process, which is required for serial production of root sections. The most widely used concept deals with complex processes that, due to their complexity, could result in interface failure due to insufficient compounding of constituents. To avoid this, most bonded interfaces are calculated with relatively high safety margins to provide process tolerance.
In general, most of these processes are performed on finished large sub-components and in some cases fully processed sheets, which in the case of process failures, incur high costs in the event that it becomes necessary to discard the component / sheet. Alternatively, heavy and expensive repair of components / blades is required because of unacceptably high costs if discarded due to failure. Many factors influence the quality of adhesive bonds. Among these are the quality of surfaces to be bonded, injected / applied amount of adhesive, proper positioning of the sleeve in the adhered hole / adhesive, temperature and humidity, cure cycle control when performed on large sub-components or entire sheets, roughness / smoothness and cleanliness the steel sleeve to be laminated, drapability of the layers, which
3 REPLACE the steel sleeves or insufficient vacuum to consolidate bonded components throughout the process.
Today's processes have quite extensive process steps, which in some cases are quite time consuming and demanding for work and tools. Furthermore, some of these processes are dependent on component size, which is difficult to manage, requiring well-organized infrastructure as well as proper handling equipment.
Further, to overcome potential consolidation problems, hardness pressure is unrealistic for such components in this regard because of the size and need for inexpensive windmill manufacturing components.
European Patent EP-1633624-B1 discloses a method of making a root blade with fully attached insert sleeves having an internal thread for mounting bolts for releasable attachment to a hub of a wind turbine. The extension portion of the insert sleeve may be chamfered to provide a gradually tapered cross-section and thus gradually increased flexibility of the extension portion toward the tip of the blade. The sleeves are preferably metallic and the part to mount them to the hub is preferably cylindrical. The blade root is substantially circular and consists of two parts of semicircular cross-sections.
A holder, e.g. made of foam material having a number of recesses for receiving the sleeves is placed on a fiber mat in a mold. After lining the fixture with at least one layer of fiber mat, the sleeves are placed in the recess and fixed to a root plate for proper positioning. By hardening the mats, the sleeves are glued in the laminated blade root construction and the root plate is released from the sleeves.
US Patent Application US-2009/0148655-A1 discloses a prefabricated semi-finished product for use in the manufacture of a fiber reinforced composite part of a wind turbine comprising a number of liners secured to a fixed position fiber mat. The liners are carrot-shaped for attaching the final fiber reinforced composite to other parts of the wind turbine, or at least include them. | later 4 • · * · • · ♦ · * m • ft
Alternatively, the liners may be or at least contain fasteners such as sleeves. These liners are attached to the fiber mat in fixed positions, e.g. by gluing during the manufacture of the fiber-reinforced composite part. For the final lamination of the fiber-reinforced composite part, the half-product is placed in a three-dimensional shape.
A product useful as a base material for forming a molded product is disclosed in EP-1134314-B1. A composite intermediate has a resin encapsulated fibrous sheet of constant mass and thickness which is relatively flexible and whose fibers are poorly adhered together. The arch has superimposed layers of randomly oriented fibers. The layers are only fastened together where they touch each other. Forming the above product includes depositing a layer having a high percentage of fibers encapsulated in resin, making parallel cuts in the layer to form segments, arbitrarily arranging the segments, and then causing the segments to adhere to each other where they are Have contact, one.
The aim of the present invention is to overcome the disadvantages of the above-mentioned prior art and to provide improved, optimized and increased load bearing critical parts in wind turbine root sections in terms of mechanical load transfer.
According to the present invention, this is achieved in that a module has two side surfaces, an upper and a lower surface, and at least one end surface, wherein the upper and lower surfaces are of different widths and arcs in cross-section, and the side surfaces of the same Height are, and when it is coupled by means of its side surfaces to a second module, which second module may optionally also hold at least one sleeve, the sum of the angle between the possibly imaginary planar side surface of the one module and the tangent to its upper surface at the intersection with the side surface and the angle between the optionally imaginary planar side surface of the other module and the tangent to its upper surface at the intersection with the side surface is at least 180 degrees and / or a variety
FOLLOW-UP • I f · · t t t t V t «V V V an an an an an an an an an an an an an an an an an an an an an when holding the sleeves, form at least a portion of a circular ring or a complete circular ring. The use of modules having sleeves for wind-blade roots using glass / carbon HexMC®, unidirectional fabrics or prepregs or the like (either combined or as individual products) allows the interface-critical portions of the root portion to be broken down into smaller components ; to be processed under controlled process conditions. In particular, by molding the sleeves under pressure of e.g. 1 to 200 bar, shell laminate material interface consolidation is improved and interfacial critical component mechanical properties are improved. The molding process can be automated to form uniform and consistent high-quality components independent of manual work skills. Further, quality control of load transfer critical parts may be performed prior to assembly into root sections so as to avoid potential repair or disposal of root sections or even leaves if a manufacturer processes the roots after removing the whole sheet from the mold. The modules act as building blocks for root section production. Because of their shape, they facilitate the manufacturing process and at the same time ensure that the hardened and demoulded root leaf leaves include all necessary root components, which only requires cutting and grinding after removal from the mold.
Further, by breaking down the root section into smaller components (the modules), time-consuming operations can be made on load critical parts adjacent to the root section production (parallel fabrication).
Breaking down root sections at the same time allows load-critical parts to be manufactured in automated processes, resulting in uniform and high quality produced components. Influence of lack of craftsmanship is minimized / eliminated. Shapes of the steel insert at the same time allows geometric changes of the often round axis geometry (cheap steel solution), so as to more optimally adapt the root lay-up (building blocks) to it
FOLLOW-UP 6 • * * ♦ · «* *» • · • * * * * t «is so easy to keep and thereby reduce lay-up time, which in turn leads to increased throughput. The shape of the module allows optimization in terms of assembling the modules and for different sleeve geometries. The two side surfaces are not limited to planar shape and also the value of the radius of the upper and lower surfaces, when viewed in a cross section, is not limited, so even flat surfaces are within the scope of this invention. The module has at least one end surface to be coupled to other components of the wind turbine. The modules are intended to be coupled by their side surfaces, with modules having no, one or more than one sleeve being able to be coupled in any sequence which is considered advantageous. By coupling modules, a structure is formed which represents at least part of a root end of a wind turbine. This can be achieved if the angles between the side surfaces of adjacent modules and their upper surfaces meet certain requirements. If the side surfaces are flat or at least substantially planar, meaning that the flatness may be interrupted between their upper and lower ends, the angle between this side surface and the upper surface can easily be attached by attaching a tangent to the upper surface at the edge the side surface are determined. In this case, it is necessary for the sum of these angles of two modules coupled together to be 180 degrees. If the side surfaces have a shape other than a planar shape, the angle between an imaginary plane connecting the top and bottom of the side surface and a tangent to the top surface at the edge with the side surface may be determined. As will be explained further below, the sum of these angles of two modules coupled together in this case is at least 180 degrees. A variety of modules that meet these requirements for angles that do not accommodate one or more than one sleeve may (but are not limited to) form at least a portion of a circular ring or a complete circular ring that is a root end of a wind turbine represents when coupled together. Build at least a section of a circular
POSSIBLE 9 · • 9 7 • · · · · * ♦
Rings or a complete circular ring representing a root end of a wind turbine can also be achieved according to the invention by coupling modules which do not accommodate one, one or more than one sleeve that do not meet these angle requirements. It is important that a root structure can be built by assembling modules of different shape, in particular, modules that meet the upper requirements of the angles can be mixed with modules that do not meet these requirements. It is also important to note that the shape of the root structure may differ from that of a circular ring.
According to a preferred embodiment of the present invention, angles are not equal. This embodiment can be applied both to the case of flat or at least substantially planar side surfaces, as well as to side surfaces which require an imaginary plane for determining the angle as described above. An angle other than 90 degrees increases the side surfaces through which the modules are coupled, thus improving their binding capabilities and thereby the strength of the final root end. To make the circular ring, modules of different shapes are alternately arranged so that a module with a wide upper surface abuts a module with a narrow upper surface. In this case, at least two different forms of modules are required for forming the circular ring.
Another preferred embodiment of the present invention is characterized in that the module has at least one rectilinear recess extending from the one end surface towards the other end of the module, which recess is adapted to hold the sleeve. The recess provides safe and stable housing of the sleeve. It is therefore fitted to the outer surface of the sleeve. The recess may be provided throughout the module, meaning from one end surface to the other end of the module. Alternatively, if it terminates within the module, this end forms an internal stop for insertion of the sleeve, positioning the sleeve in its socket
FOLLOW-UP 8 8
Lengthwise simplified. The invention is not limited to just one recess or sleeve per module. In particular, multiple sleeves per module reduce the number of modules required to build the root end with a given number of sleeves, thereby simplifying the build process. The sleeves may be made of metal, e.g. Steel alloys, without being limited thereto. There is no need for protrusions or depressions on its outer surface to achieve sufficient adhesion with the module, as this is guaranteed by the hardening process.
In a further preferred embodiment of the present invention, the recess is substantially circular,
Part of a circle or rectangular. This form allows accommodation of correspondingly cylindrical shaped sleeves or with a rectangular profile, or to place a part of the sleeve in the recess. However, the invention should not be limited to specific forms of recess. Elliptical or generally polygonal cross sections are also within the scope of this invention.
Another preferred embodiment of the present invention is characterized in that a recess is disposed on one or each of the side surfaces of the module.
In this embodiment, the sleeve is disposed between adjacent modules. In this case, the module can be manufactured without having to place the sleeve in advance, thereby exposing the sleeve to less thermal stress and so also reducing energy costs. The sleeve is then inserted during the assembly of the modules. Sleeves can be arranged only on one side of a module, which is advantageous if the other side of this module abuts a module without a recess on this side surface.
In a further preferred embodiment of the present invention, the radius of the recess is greater than half the height of the module. By employing such a recess, a sleeve may be disposed between adjacent modules such that the side surfaces of these modules do not contact each other because the diameter of the sleeve is greater than the thickness (distance between upper and lower surfaces) of the modules.
This embodiment allows the use of sleeves with larger
FOLLOW-UP 9 9
The diameter without the need to increase the thickness of the modules accordingly, which saves material and costs. Again, the sleeves are not limited to circular cross-section. In general, since the side surfaces of such a module are not planar, an imaginary plane connecting the top and bottom of the side surface is used to determine the angle between the side surface and a tangent to the top surface at the edge with the side surface ,
In a further preferred embodiment of the present invention, a recess is disposed between the side surfaces and the upper and lower surfaces of the module. Accordingly, the sleeve is completely housed within the module, which provides particularly strong anchoring of the sleeve. A subsequent process step for inserting the sleeve after curing of the module can therefore be omitted. There may be more than one recess / sleeve within a module.
A further preferred embodiment of the present invention is characterized in that the module has at least two parts. It is preferred that the partitioning be performed to facilitate the insertion and correct positioning of the sleeves in the module. The individual parts are joined together by the hardening process. It is particularly preferred that the module has 2, 3 or 4 components.
In a further preferred embodiment of the present invention, the module is horizontally divided longitudinally into an upper part and a lower part, and the recesses are located at the corresponding contact surfaces of the upper and the lower part. The separation plane between the upper and lower part extends through the recesses. This allows for easier placement of sleeves into the one or more recesses in the lower part of the module prior to placing its upper part. Again, unnecessary heating of the sleeves can be avoided by first curing the parts of the module and then placing the sleeves.
In a further preferred embodiment of the present invention, the width of the upper surface of the lower part is different from the width of the lower surface of the lower surface
REPLACED 10 upper part of the module. Because of these different widths, the side surfaces, which are the contact surfaces of adjacent modules, are increased. A zigzag shape, in particular a sawtooth shape of the side surfaces of the assembled module can be applied. This results in both improved adhesion between adjacent modules, as well as improved strength of the final root end. The width of the upper surface of the lower part may be either larger or smaller than the width of the lower surface of the upper part. The angles between the side surfaces of upper or lower parts and the tangent to the upper surface may differ in this embodiment from the respective angles in the case where the widths are equal. Therefore, an imaginary plane connecting the top and bottom of the side surface of the assembled module is used to determine the angle between the side surface and a tangent to the top surface at the edge with the side surface.
In another preferred embodiment of the present invention, the module is divided parallel to one end surface into a front part and a rear part. This embodiment allows placing the rear part first to form a front part stopper part in the longitudinal direction of the module, thereby simplifying the arrangement of the front part. The embodiment is not limited to a recess in the rear part, nor to a rear part, which is chamfered towards its end opposite the front part. In a particularly preferred embodiment, the module has 3 parts, ie a rear part and an upper and a lower front part. After placing the rear part, which is a stop part for the lower front part, the sleeves can be inserted into the recess of the lower front part and finally the upper front part can be positioned.
Another preferred embodiment of the present invention is characterized in that the module contains a mixture of fibers arranged arbitrarily in different directions and a thermosetting resin material. These fibers and the resin may e.g. provided by the product HexMC®, which is sold exclusively by Hexcel Corporation.
Afterwards, which is a sheet-molding compound designed specifically for molding complex shapes. The epoxy matrix and the high fiber volume content of this product are particularly suitable for molding the sleeves. By placing the sleeves between multiple layers of this sheet material, time-consuming cutting of prepreg or dry fiber layers into numerous small pieces can be avoided. The structure is then molded up to e.g. 200 bar and therefore represents a high quality steel-laminate interface, while the prior art, the pressure is essentially limited to 1 bar. An exemplary temperature range for the molding process is approximately between 30 and 250 ° C. However, it should be noted that arbitrarily oriented fibers may also be mixed with any other suitable fibers, such as unidirectional or multiaxial fibers.
Another preferred embodiment of the present invention is characterized in that the resin material is at least partially cured. The sleeves can be placed in or between the modules without the need for fully cured modules. Because of the precuring of the material contained in the modules, the exothermic reaction during hardening of the root section containing the modules can be reduced. There is less reactive material in the mold compared to the prior art, which results in reduced cure time and higher mold throughput.
Another preferred embodiment of the present invention is characterized in that the modules are used to build a root end for mounting wind blades to the hub of a wind turbine. In an exemplary manufacturing process, an outer laminate skin of the root is positioned on a mold surface on which the molded modules and steel sleeves are accurately positioned and fixed in root shape. On top of the modules an inner laminate skin of the root is positioned. This assembly is vacuum cured to consolidate the material interfaces. Finally, the demoulded, cut and ground root portion is ready to be used in a wind turbine. The number of modules that are put together
FOLLOW-UP • ♦ · · * * * * * * * * · · t t · · · · · · · · t t t t t t t t t. vary from 50 to 300. Suitable materials for the outer laminate skin of the root and inner laminate skin of the root are dry fibers or prepreg materials. The resin used to join the modules as well as outer and inner laminates may comprise epoxy, phenolic, vinylester, polyester or any other resin suitable for making windbreaks.
Because of this type of building block system, the root lay-up time is significantly reduced to below e.g. 50% reduced compared to prior art root manufacturing methods. Furthermore, the manual work for root lay-up is reduced, resulting in a higher mold throughput. It is an important improvement over the prior art that the fabrication of the modules can be performed by a method that allows for high precision and therefore tight tolerances of shaped geometries. This results in improved interfaces between pods and modules, as well as between modules, and the same produced quality of final root sections.
In the following, the invention will be explained in more detail by way of preferred exemplary embodiments, illustrated in the drawings, to which, however, it is not limited. In detail is:
Fig. 1 is a schematic cross-sectional view of a module;
Fig. 2 is a schematic view of two adjacent modules;
Fig. 3 is a schematic view of two separate modules which are capable of being joined together with partially planar side surfaces;
Fig. 4 is a schematic view of two separate modules which are capable of being assembled with completely non-planar side surfaces;
Fig. 5 is a schematic view of modules joined together to form a complete circular ring structure;
Fig. 6 is a schematic view of two adjacent modules having different angles between their upper surfaces and their adjacent side surfaces;
7 shows a module with recesses and a stopper
SUBSEQUENT - 13 - * - • ♦ ♦ · • · part;
Fig. 8 shows a sleeve;
Fig. 9 is a schematic view of a module having a differently shaped recess;
Fig. 10 shows an arrangement of modules and sleeves;
Fig. 11 shows upper and lower parts of a module;
Fig. 12 shows a module with different widths of upper and lower surfaces of lower and upper parts;
Fig. 13 shows another embodiment of a module having different widths of upper and lower surfaces of lower and upper parts;
Fig. 14 shows a module separated in front and rear
Part;
Fig. 15 is an exploded view of a portion of a root structure;
Fig. 16 shows a complete root section.
Figure 1 shows an embodiment of a module 1 according to the invention having two side surfaces 2 and 3, a top surface 4 and a bottom surface 5 and an end surface 6. The side surfaces 2 and 3 are of equal height and the top and bottom surfaces 4 and 5 are of different widths and can be bows without being limited to them. The module 1 has a recess 7. The module 1 may be coupled to an adjacent module 8 by side surfaces 3 and 9 shown in FIG. The side surfaces of the modules can be flat, mostly flat or completely uneven. An embodiment of mostly flat side surfaces of modules is shown in particular in FIG. Both the side surface 3 of module 1, and the side surface 9 of module 8 contain recesses, which, however, since they do not extend over the entire side surface, determining an angle a, ß to the tangents 10, and 11 at their allow upper surfaces 4, 15. The tangents 10, 11 are placed at the intersections A, B of the upper surfaces with the respective side surfaces 3, 9 of the modules. As can be clearly seen, the sum of the angles α and β is 180 °.
Recesses that extend beyond the side surfaces of a module cause side surfaces that are not completely flat, as shown in FIG. 4. Around the angle between
POSSIBLE »· · φ φ φ -setting out the side surfaces and the tangents on the upper surfaces of the modules, an imaginary plane 12, 13 on the side surfaces 3, 9 in particular between the points A and C and between the points B and D as shown in Fig. 4 are drawn. As a result of the geometric relationships, in particular because of the different diameters of bottom 5 and top surfaces 4 of the modules 1, 8 and the completely non-planar side surfaces 3, 9, the angle of and β between the imaginary plane 12, 13 and the respective tangent to the surface increases upper surface 4, 15 of each module 1, 8 beyond 90 °. Therefore, the sum of the angles α and β of the two modules, connectable by a sleeve with a larger diameter than the height of the modules, can be more than 180 °.
For constructing at least a portion of a circular ring structure or a complete circular ring structure as shown in Fig. 5, the modules are coupled by means of their side surfaces. Although Figure 5 shows an assembly of modules each having two recesses 7, the invention is not limited to an assembly of modules having the same number of sleeves. In particular, a module may be coupled to an adjacent module with no or any other suitable number of sleeves.
According to a preferred embodiment of the present invention, the angles α and β may not be the same as shown in Fig. 6, which allows side surfaces of increased size, as can be seen. Both the side surfaces 2 and 3 of module 1, as well as the side surfaces 9 and 14 of module 8 are different inclined relative to the illustration in Fig. 3. Nevertheless, the angle α between the tangent 10 on the upper surface 4 of module 1 and its side surface 3 is determined and the angle β is determined between the tangent 11 on the upper surface 15 of module 8 and its side surface 9. The modules 1 and 8 have a different shape to form a ring structure by coupling the side surfaces 3, 9 of the modules 1, 8.
The at least one rectilinear recess in a module 1 extends from its end surface 6 towards the other end of module 1. For simplified positioning of the sleeve 17 in the longitudinal direction of module 1, a stop member 16 may be provided, as shown in FIG. Although that illustrated
REPLACED - 15 - ♦ «* ·
Module 1 shows a beveled end portion, the invention is not limited to modules of this form. In an embodiment not shown, the recess may also lead through the entire length of the module.
An example of a sleeve 17 for insertion into a recess 7 of the module 1 is shown in FIG. In this illustration, the sleeve 17 has a substantially cylindrical outer surface. Accordingly, a recess suitable for receiving such a sleeve has a circular cross section or, in the case that the diameter of the sleeve 17 is greater than the height of module 1, a part of a circle in cross section. However, the invention is not limited to particular forms of recesses so that even sleeves of rectangular cross-section or any other suitable shape and correspondingly shaped recesses in the modules are within the scope of this invention. 9 shows a particular embodiment of a module 1 with a rectangular recess 7.
An assembly of modules 1 with recesses 7 on both side surfaces 2, 3 for receiving sleeves 17 between the modules is shown in FIG. The diameter of the sleeve 17 in this illustration is greater than the distance between the upper surface 4 and the lower surface 5 of module 1.
According to a further embodiment of the present invention, one or more recesses 7 may be arranged between the side surfaces 2 and 3 and the upper and lower surfaces 4 and 5 of a module 1 as shown in particular in FIGS. 1 and 9.
In contrast to producing a module 1 in one piece, the module according to a preferred embodiment of the invention may comprise at least two parts. In particular, the module may be horizontally split longitudinally into an upper part 18 and a lower part 19 as shown in FIG. It is advantageous that this splitting into upper and lower parts 18 and 19 allows simplified insertion of a sleeve 17. After placing a sleeve 17 in the recess of the lower part 19, the upper part 18 with its lower surface 21 can be placed on the upper surface 20 of the lower part 19 in order to join the module together.
To increase the bonding capabilities between adjacent modules 1,
FOLLOW-UP • * ············································································································································································································································ maintained separate upper 18 and lower 19 parts of the module, the width of the upper surface 20 of the lower part 19 differs from the width of the lower surface 21 of the upper part 18 of the module 1. These particular embodiments are shown in FIGS. 12 and 13 , As can be seen in the example of Fig. 12, the angle between side surface 22 of the upper part 18 of module 1 and the tangent 10 in this case differs from the angle when the surfaces 20 and 21 have equal widths. Since the side surfaces of module 1 in FIGS. 12 and 13 are no longer flat, the angle α between the tangent 10 of module 1 and an imaginary side plane 12 can be determined.
In order to further facilitate the positioning of the modules or sleeves, the module may be divided parallel to its end surface 6 into a front part 23 and a rear part 24. As illustrated in FIG. 14, the rear part 24 serves as a stopper part for both the front part 23 and sleeve 17. According to one embodiment of this invention, the front part 23 may still be divided into an upper part 18 and a lower part 19. Further, the rear part may also be divided into upper and lower parts (not shown). The module 1 will therefore be divided into two or more, even more than four parts.
To build a root section, the modules 1 including one or more sleeves 17 are placed between an outer laminate skin 25 of the root and an inner laminate skin 26 of the root as shown in Figure 15 before being vacuum cured. The final root portion 27 as shown in Fig. 16 comprises a number of modules 1, each of which may include one or more sleeves 17 and / or have a sleeve 17 each disposed between adjacent modules 1.
I RETURNED

权利要求:
Claims (14)
[1]
Claims 1. A module (1) for holding at least one sleeve (17), characterized in that it has two side surfaces (2, 3), an upper surface (4) and a lower surface (5) and at least one end surface (6), wherein the upper surface (4) and lower surface (5) are of different widths or arcs in their cross-section, and the side surfaces (2, 3) are of equal height, and when attached to a second module ( 8) is coupled by means of its side surfaces (3, 9), which second module (8) may optionally also hold at least one sleeve (17), the sum of the angle (a) between the optionally imaginary flat side surface (12) of the one module ( 1) and the tangent (10) to its upper surface (4) at the intersection (A) with the side surface (3) and the angle (β) between the optionally imaginary flat side surface (13) of the other module (8) and the tangent (11) to its upper surface (15) at the intersection (B) m at least 180 degrees to the side surface (9) and / or a plurality of modules (1), optionally forming the sleeves (17), forming at least a portion of a circular ring or a complete circular ring.
[2]
2. Module (1) according to claim 1, characterized in that said angles (a, ß) are not equal.
[3]
Module (1) according to claim 1 or 2, characterized in that it comprises at least one rectilinear recess (7) extending from one end surface (6) towards the other end of the module (1), said recess (7) is adapted to hold the sleeve (17).
[4]
4. Module (1) according to claim 3, characterized in that the recess (7) is substantially circular, part of a circle or rectangular.
[5]
5. Module (1) according to claim 3 or 4, characterized in that a recess (7) on one or on each of the side surfaces (2, 3) of the module (1) is arranged. FOLLOW-UP 18
[6]
6. Module (1) according to claim 5, characterized in that the radius of the recess (7) is greater than half the height of the module (1).
[7]
7. Module (1) according to one of claims 3 to 5, characterized in that a recess {7) between the side surfaces (2, 3) and the upper and lower surfaces (4, 5) of the module (1) is arranged.
[8]
8. module (1) according to one of claims 3 to 7, characterized in that it comprises at least two parts.
[9]
9. Module (1) according to claim 8, characterized in that it is divided horizontally in the longitudinal direction into an upper part (18) and a lower part (19), and that the recesses (7) on the corresponding contact surfaces (21, 20) of the upper part (18) and the lower part (19) are located.
[10]
Module {1} according to claim 9, characterized in that the width of the upper surface (20) of the lower part (19) differs from the width of the lower surface (21) of the upper part (18).
[11]
11. Module (1) according to one of claims 8 to 10, characterized in that it is parallel to an end surface (6) in a front part (23) and a rear part (24) divided.
[12]
Module (1) according to any one of the preceding claims, characterized in that it contains a mixture of fibers, randomly oriented in different directions, and a thermosetting resin material.
[13]
13. Module (1) according to claim 12, characterized in that the resin material is at least partially cured.
[14]
Use of the modules (1) according to one of the preceding claims for building a root end (27) for mounting wind blades to the hub of a wind turbine. SUBSEQUENT

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DE3113791C2|1992-02-20|

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同族专利:

公开号 | 公开日

US9370905B2|2016-06-21|

WO2012097394A8|2012-09-20|

CN103477069B|2016-07-06|

BR112013016591A2|2016-09-27|

WO2012097394A1|2012-07-26|

KR20140007386A|2014-01-17|

AT510694B1|2012-06-15|

CN103477069A|2013-12-25|

EP2665927A1|2013-11-27|

US20130285284A1|2013-10-31|

KR101834981B1|2018-03-06|

引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

US5301826A|1992-08-06|1994-04-12|Alternative Pioneering Systems, Inc.|Expansion ring and clip for use with an expandable oven|

WO2009083531A1|2007-12-28|2009-07-09|Vestas Wind Systems A/S|A tubular element, the related method and tools to produce it|

US20100158661A1|2008-04-15|2010-06-24|Frontier Pro Services|Repair of rotor blade roots|

US20090324420A1|2008-06-27|2009-12-31|Gamesa Innovation & Technology, S.L..|Blade insert|EP2682256A1|2012-07-03|2014-01-08|Fiberline A/S|A method of producing an assembly for use in a fibre reinforced structural element|US3215585A|1962-12-28|1965-11-02|Pittsburgh Plate Glass Co|Composite glass fiber products and process of preparing the same|

GB9209063D0|1992-04-27|1992-06-10|Colebrand Ltd|A method of connection|

US5266137A|1992-11-10|1993-11-30|Hollingsworth Ritch D|Rigid segmented mandrel with inflatable support|

GB2330156A|1997-10-07|1999-04-14|Tarmac Uk Ltd|Reinforced shaft, tunnel or pipeline segment|

FR2806425B1|2000-03-16|2002-07-12|Hexcel Composites|COMPOSITE INTERMEDIATE PRODUCT, PROCESS FOR PRODUCING SUCH A PRODUCT, AND USE AS A MOLDING MATERIAL|

AU2003235797B2|2002-01-11|2007-09-20|Fiberline A/S|A method of producing a fibre reinforced structural element|

DE10214340C1|2002-03-28|2003-11-27|Aerodyn Eng Gmbh|Blade connection for the rotor blades of a wind turbine and method for its production|

EP1486415A1|2003-06-12|2004-12-15|SSP Technology A/S|Wind turbine blade and method of manufacturing a blade root|

US7438533B2|2005-12-15|2008-10-21|General Electric Company|Wind turbine rotor blade|

DE102007014861B4|2007-03-26|2015-07-30|Senvion Se|Connection of components of a wind turbine|

JP2010245060A|2007-07-07|2010-10-28|Idemitsu Kosan Co Ltd|Organic el device|

US8337163B2|2007-12-05|2012-12-25|General Electric Company|Fiber composite half-product with integrated elements, manufacturing method therefor and use thereof|

KR20110104556A|2009-02-16|2011-09-22|베스타스 윈드 시스템스 에이/에스|A rotor blade for a wind turbine and a method for making the same|

ES2663526T3|2009-04-13|2018-04-13|Maxiflow Manufacturing Inc.|Wind turbine blade and its construction method|

EP2551512B1|2011-07-27|2014-04-16|Alstom Renovables España, S.L.|Wind turbine blade connector assembly|ES2598828T3|2011-04-11|2017-01-30|Lm Wp Patent Holding A/S|Wind turbine blade comprising cylindrical metal inserts in a root region thereof|

CN104822936A|2012-09-17|2015-08-05|Lmwp专利控股有限公司|Wind turbine blade with fastening means|

GB2524489B|2014-03-24|2016-02-24|Marine Current Turbines Ltd|Turbine blade and method of manufacture|

EP2963282B1|2014-07-04|2018-10-24|Siemens Aktiengesellschaft|Mounting ring arrangement for wind turbine blade|

US9970304B2|2015-07-22|2018-05-15|General Electric Company|Rotor blade root assembly for a wind turbine|

US10060411B2|2015-07-22|2018-08-28|General Electric Company|Rotor blade root assembly for a wind turbine|

US10066601B2|2015-10-22|2018-09-04|General Electric Company|System and method for manufacturing wind turbine rotor blades for simplified installation and removal|

BR112018014177A2|2016-01-11|2018-12-11|Lm Wp Patent Holding As|"locking element for a wind turbine blade"|

WO2018042063A1|2016-09-05|2018-03-08|Emprending Business|Method and equipment for repairing the roots of wind turbine blades|

US10626847B2|2017-01-05|2020-04-21|General Electric Company|Method for manufacturing a wind turbine rotor blade root section with pultruded rods and associated wind turbine blade|

CN111225788A|2017-10-18|2020-06-02|Lm风力发电国际技术有限公司|Wind turbine blade comprising a root end structure with pultruded elements with transition portions|

CN111246992A|2017-10-18|2020-06-05|Lm风力发电国际技术有限公司|Wind turbine blade comprising an adaptively positioned root end structure with pultruded elements|

US10677216B2|2017-10-24|2020-06-09|General Electric Company|Wind turbine rotor blade components formed using pultruded rods|

JP2022501542A|2018-09-21|2022-01-06|ティーピーアイコンポジッツ，インコーポレーティッド|Wind turbine blade root attachment system and manufacturing method|

法律状态:
2019-09-15| MM01| Lapse because of not paying annual fees|Effective date: 20190121 |

优先权:

申请号 | 申请日 | 专利标题

ATA88/2011A|AT510694B1|2011-01-21|2011-01-21|MODULE FOR HOLDING AT LEAST ONE POD|ATA88/2011A| AT510694B1|2011-01-21|2011-01-21|MODULE FOR HOLDING AT LEAST ONE POD|

KR1020137021891A| KR101834981B1|2011-01-21|2012-01-20|Module for holding at least one bushing|

US13/980,015| US9370905B2|2011-01-21|2012-01-20|Module for holding at least one bushing|

PCT/AT2012/000010| WO2012097394A1|2011-01-21|2012-01-20|Module for holding at least one bushing|

BR112013016591A| BR112013016591A2|2011-01-21|2012-01-20|module to hold at least one bushing|

CN201280006153.6A| CN103477069B|2011-01-21|2012-01-20|For keeping the module of at least one lining|

EP12702744.9A| EP2665927A1|2011-01-21|2012-01-20|Module for holding at least one bushing|

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