DE202013011772U1 - Device for producing a molded component and wind turbine - Google Patents

Abstract

Device (138) for producing a molded component (110), in particular a rotor element (108) of a wind turbine (100), comprising: - a winding core (142) which has a plurality of winding elements (144) extending parallel to one another along a height direction (154) includes; - multiple fiber dispensers (146) for providing multiple continuous fibers (150); - A movement device (148) for moving the fiber dispenser (146) relative to the winding core (142).

Description

The present invention relates to a device for producing a molded component, in particular a rotor element of a wind turbine.

The present invention has for its object to provide a device by means of which a lightweight and stable mold component is easy to produce.

This object is achieved by a device according to claim 1.

In one embodiment of the invention, it is provided that at least two fibers are intertwined during the wrapping of the winding elements.

It may be favorable if a plurality of fiber layers are produced by multiple superimposition of the fibers.

In particular, it can be provided that a plurality of fiber layers are produced by multiple superimposition of the same fibers.

It may be provided that by means of at least one fiber alternately successively each wound as a corner element winding element and a peripheral element designed as a winding element are wrapped.

Alternatively or additionally, it may be provided that by means of at least one fiber always wound only as corner elements winding elements are wrapped.

Furthermore, as an alternative or in addition thereto, provision can be made for wrapping elements which are always formed only as edge elements by means of at least one fiber.

Thus, for example, be provided that by means of a fiber always only two opposing edge elements are wrapped. Two further opposing edge elements are preferably wrapped with another fiber.

For example, it may be provided that only corner elements are wrapped by means of two fibers, while by means of two further fibers in each case two opposing edge elements are wrapped.

It can be provided that two or more fibers are intertwined with each other.

It may also be favorable if, by means of at least one fiber, the winding core as a whole is wrapped externally.

It may be favorable if the fiber dispensers are movable relative to one another and / or independently of one another by means of the movement device.

It can be provided that the fiber dispensers can be moved in two dimensions by means of the movement device in a plane oriented essentially perpendicular to the height direction.

Furthermore, it can be provided that the movement device comprises a plurality of movement paths along which the fiber dispensers are movable.

In one embodiment of the invention it is provided that the device comprises a plurality of relatively movable relative to the winding core hold-down.

The hold-downs serve in particular for gripping and / or guiding the fibers, in particular for holding the fibers in a plane in which a fiber layer is or is to be produced.

The winding elements are preferably arranged in matrix form.

Under a matrix-like arrangement of the winding elements is in particular an arrangement of the winding elements to be understood such that the winding elements are arranged side by side in columns and rows. The winding core preferably has a plurality of columns and a plurality of rows of winding elements.

The extension direction of the columns and the extension direction of the rows are aligned substantially perpendicular to the height direction.

It can be provided that the winding core comprises a plurality of corner elements, a plurality of edge elements and at least one inner element.

Corner elements preferably form both a column end and a row end of the winding core.

Edge elements preferably form only a column end or a row end of the winding core.

Inner elements preferably form neither a column end nor a row end of the winding core.

In particular, it can be provided that the winding core comprises four winding elements formed as corner elements, wherein at the edge of the Winding core between the corner elements in each case at least one edge element is arranged. In addition, it may be provided that at least one inner element is arranged between two edge elements arranged opposite one another.

Between the rows of winding elements preferably at least one fiber channel is formed.

Between the columns of winding elements preferably at least one fiber channel is formed.

It can be advantageous if fiber channels are formed between the winding elements, which extend substantially linearly through the entire winding core.

The fiber channels are preferably aligned in a direction parallel to the height direction plane.

It can be provided that between the winding elements fiber channels are formed, wherein at least two fiber channels are aligned substantially parallel to each other.

Alternatively or additionally, it may be provided that fiber channels are formed between the winding elements, wherein at least two fiber channels are aligned substantially perpendicular to each other.

For example, it can be provided that the fiber channels form an at least approximately diamond-shaped structure, in particular have a cross section taken perpendicular to the height direction, which is at least approximately diamond-shaped.

The device preferably comprises a control device, by means of which the device can be controlled and / or regulated such that one or more methods for producing a molded component by means of the device can be carried out.

The device is in particular a winding device.

The present invention further relates to a wind turbine.

The invention is in this respect the task of providing a wind turbine, which includes light and stable rotor elements and is operable efficiently.

This object is achieved according to the invention in that the wind power plant comprises a rotor device which comprises a plurality of rotor elements, wherein the rotor elements are aligned substantially parallel to one another and substantially parallel to an axis of rotation of the rotor device, wherein the rotor elements are arranged between two receiving elements of the rotor device, in that opposite ends of each rotor element are periodically movable toward and away from each other due to the rotational movement of the rotor elements about the axis of rotation, so that periodic twisting of the rotor elements can be initiated.

Due to the fact that a periodic twisting of the rotor elements can be initiated in the case of the rotor elements, the rotor elements can preferably be aligned specifically relative to the wind direction. The efficiency of the wind turbine can thereby be increased preferably.

It may be favorable if the rotor elements have a desired rotational orientation relative to a wind direction, in particular a desired angle of attack, by the periodic twisting of the rotor elements at mutually different positions along a path of movement of the rotor elements.

At least one receiving element preferably comprises a shaft device, by means of which the ends of the rotor elements are periodically movable toward and away from one another.

The shaft device preferably includes a guide device for guiding an end of at least one rotor element in a circumferential direction of the rotor device and / or in an axial direction of the rotor device.

The guide device is designed in particular as a guide rail.

It can be advantageous if the rotor device comprises an alignment device, by means of which at least one receiving element, in particular a shaft device of at least one receiving element, can be aligned relative to a wind direction. In this way it can be ensured that the rotor elements at predetermined points have a desired Drehausrichtung relative to the wind direction.

In one embodiment of the invention can be provided that the rotor elements each comprise at least one Drillknickelement, for example a Drillknickstange, by means of which by acting on the respective rotor element with a compressive force which acts at least approximately in a direction parallel to the axis of rotation of the rotor device aligned longitudinal direction of the rotor element, a twisting of the rotor element can be initiated.

The rotor elements in particular comprise hollow profiles or are formed by hollow profiles.

The device according to the invention for producing a molded component and / or the wind power plant according to the invention preferably also have one or more of the features and / or advantages described below:
The wrapping of the winding elements of the winding core is preferably an endless winding method.

Preferably, a complex reinforcing structure can be created.

It may be favorable if the rotor elements comprise a blunt profile end, for example a comb tail or a pseudo-Jaray tail.

Preferably, complex cellular and / or honeycomb support structures can be provided.

Preferably, the fibers can be stored quickly, endlessly and inexpensively.

It may be favorable if the wind turbine comprises rotor elements designed as a vertical rotor. This can result in particular turbulent and very different wind directions advantages.

A vertical runner may be, for example, a Savonius rotor or a Darrieus rotor.

Alternatively, it can be provided that the wind turbine comprises trained as a horizontal rotor rotor elements.

Preferably, a plurality of fibers (fiber strands) are deposited on a device (winding core).

The device (winding core) and the fiber laying device (in particular the fiber dispenser) are preferably designed to be movable relative to each other.

In particular, it can be provided that the fiber laying device (in particular the fiber dispenser) are designed to be movable in a plane extending horizontally to the vertical direction.

The winding core is preferably also movable in a direction perpendicular to the height direction plane movable, in particular to the rear and front.

Alternatively or additionally, it can be provided that the device (the winding core) is designed to be rotatable, in particular is designed to be rotatable about an axis extending parallel to the height direction. It can be provided that the device (the winding core) is rotatable for example by approximately 90 °.

Preferably, three-dimensional endless structures can be produced by a plurality of simple movements, in particular a plurality of one-dimensional and / or two-dimensional movements.

It may be favorable if several fibers are passed through at the same time between several winding elements of the winding core. In particular, it can be provided that several fibers are deposited simultaneously in mutually different fiber channels.

The fiber movement is preferably controlled so that unfixed or braided or woven structures can be formed.

It can be provided that the shaped component is reinforced by running in the vertical direction fibers.

It may be favorable if fibers running in the vertical direction are integrated in the winding elements.

In particular, it can be provided that the winding elements are used as, for example, height-adjustable, reinforcement.

By means of the device preferably multi-chamber profiles can be manufactured.

The winding cores can preferably be removed from the molded component produced, in particular for the production of hollow chamber profiles, or remain in the molded part produced, in particular for reinforcing the fiber structure produced.

The core structure, in particular the winding elements, for example in a Darrieus rotor, can preferably be used in that a periodic force is introduced by receiving elements (in particular cover plates), which causes the rotor element to be rotated by a twisting (bending torsion buckling), that a profile cross-section is optimally aligned to the wind direction.

Preferably, a twisting of the rotor elements is initiated by means of up and down movements.

For example, by means of a downstream wing for wind direction optimized alignment can preferably be ensured that the Rotor elements are optimally aligned at the optimum positions by twisting.

A, in particular supporting, internal structure of the rotor elements can preferably be combined with an outer structure, in particular with two outer shells and / or a wrapping. The outer structure allows a variable shaping. For example, tapered ends can be made.

In particular, by a pure compressive force on the rotor elements is preferably carried out a rotation of the rotor elements.

Preferably, a cyclic twisting allow a better angle of attack to the wind direction, wherein preferably further a resistance component is reduced in contrast to the buoyancy portion. The efficiency can thereby preferably be increased.

In order to induce a twist, several requirements are preferably met.

For example, a point-symmetrical and squat profile can be provided.

The profile is preferably an open profile, so that the torsional stiffness under pressure load is low.

Preferably, the rotor elements have a solid, supporting, inner structure.

A ratio of profile width and profile height is preferably approximately 1. The twist-kink effect can thereby be preferably supported.

It may be advantageous if the rotor elements comprise a web extending in the vertical direction. For example, such a web may be formed by fiber reinforcements, which do not extend over the entire width of the rotor elements.

Preferably, the outer geometry of the rotor elements is dimensioned so that the loads occurring can indeed be recorded, however, leave the Drillknickeffekt as far as possible undisturbed.

The device for producing a molded component, in particular a rotor element of a wind turbine, is in particular a winding and braiding system.

Preferably, the fiber dispensers are synchronized with each other in terms of their movement, in particular in order to wrap around the winding elements of the winding core and / or to intertwine the fibers with one another.

By fiber is meant in this specification and the appended claims in particular a single fiber, a fiber bundle, a thread, a roving, a fiber strand and / or a multifilament yarn.

Further preferred features and / or advantages of the invention are the subject of the following description and the drawings of exemplary embodiments.

In the drawings show:

1 a schematic perspective view of a wind turbine, which comprises a plurality of rotor elements, wherein in the rotor elements by means of a shaft device a twist buckling can be initiated;

2 a schematic sectional view through the wind turbine 1 wherein the rotor elements are unfavorably oriented relative to the wind direction;

3 one of the 2 corresponding schematic representation of the wind turbine, wherein the rotor elements have an optimized orientation relative to the wind direction;

4 a schematic vertical section through the wind turbine 1 ;

5 a schematic perspective view of a device designed as a winding device for producing a molded component;

6 a schematic side view of the device 5 ;

7 a schematic perspective view of a moving device of the device 5 ;

8th a schematic plan view from below of the moving device 7 ;

9 a schematic sectional view through a mold component, which was prepared with three winding elements of a winding core;

10 one of the 9 corresponding schematic sectional view of a mold component, which was prepared with nine winding elements of a winding core;

11 one of the 9 corresponding schematic sectional view of a molded component, which was manufactured with six winding elements of a winding core;

12 one of the 9 corresponding schematic sectional view of a mold component, which was produced with three winding elements of a winding core and was additionally provided with a reinforcing structure reinforcing the walls;

13 to 19 schematic representations of a winding process in which a fiber is used;

20 to 24 schematic representations of a winding process, in which four non-interwoven fibers are used;

25 to 28 schematic representations of a winding process, in which four interwoven fibers are used;

29 to 32 schematic representations of a winding process, wherein four non-interwoven fibers are provided and at least partially provided two mutually parallel fibers;

33 a schematic sectional view through a support structure of a rotor element; and

34 one of the 33 corresponding section through a rotor element, which is the support structure 33 , complementary structural elements and an outer skin.

Identical or functionally equivalent elements are provided with the same reference numerals in all figures.

One in the 1 to 4 shown as a whole with 100 designated wind turbine is used in particular for the production of electrical energy using wind energy.

The wind turbine 100 includes a rotor device for this purpose 102 which by means of a wave 104 with a generator device 106 is coupled.

The rotor device 102 is in rotation by means of the wind. The rotational movement can be over the shaft 104 on the generator device 106 be transferred and used there to generate electricity.

The rotor device 102 comprises several, for example two, rotor elements 108 which, for example, as molded parts 110 can be produced in a (still to be described) winding process.

The rotor elements 108 are between two receptacles 112 the rotor device 102 arranged and extend substantially parallel to a rotation axis 114 the rotor device 102 ,

The rotor elements 108 are offset to the axis of rotation 114 arranged.

In the rotor device 102 it is a so-called Darrieus rotor, in which the axis of rotation 114 substantially perpendicular to a wind direction 116 is aligned.

In particular 1 it can be seen, are the rotor elements 108 with opposite ends 118 on the recording elements 112 arranged.

One of the recording elements 112 is stuck with the ends 118 the rotor elements 108 as well as with the wave 104 connected.

The further receiving element 112 is relative to the rotor elements 108 and relative to the wave 104 rotatably arranged (see in particular 4 ). This receiving element 112 is especially relative to the wind direction 116 aligned.

The rotor device 102 includes an alignment device for this purpose 120 which, for example, a wing element 122 includes and the receiving element 112 holds in a desired position, in particular regardless of which rotational position, the rotor elements 108 are located.

This by means of the alignment device 120 relative to the wind direction 116 alignable receiving element 112 includes a wave device 124 which have several, for example four, peaks 126 and several, for example four, troughs 128 includes.

The wave mountains 126 and troughs 128 are for example by means of a guide device 130 the wave device 124 formed in which the not fixed to a receiving element 112 connected ends 118 the rotor elements 108 are feasible.

By means of the guide device 130 in particular, a height H of not fixed to a receiving element 112 connected end 118 of each rotor element 108 variable.

Thus, by means of the wave device 124 the ends 118 of each rotor element 108 movable towards each other by the respective rotor element 108 in the area of a wave mountain 126 is arranged. By arrangement in a wave trough 128 can the ends 118 of the respective rotor element 108 be removed again from each other.

The rotor elements 108 are designed so that by changing the distance between the ends 118 of the respective rotor element 108 from each other a twisting of the respective rotor element 108 is initiatable.

The rotor elements 108 For this purpose, preferably a Drillknickstange 132 by means of which the desired deformation of the rotor elements 108 can be generated. By twisting the rotor elements 108 become the rotor elements 108 , in particular a central section 134 of each rotor element 108 to make a parallel to the axis of rotation 114 running axis of rotation turned.

The rotor element 108 can thus optimally to the wind direction at desired locations 116 be aligned.

In particular 2 can be seen, is not optimal alignment of the rotor elements 108 to fear a lateral flow of the same with wind, which increases the resistance and the efficiency of the wind turbine 100 can be reduced.

By suitable alignment, in particular by suitable twisting, the rotor elements 108 (please refer 3 ) may preferably always optimal orientation of the rotor elements 108 relative to the wind direction 116 be enabled. The efficiency of the wind turbine 100 this can preferably be increased.

The in the 1 to 4 illustrated wind turbine 100 works as follows:
In the wind direction 116 the wind flows the rotor elements 108 the rotor device 102 at. The rotor device 102 is thereby rotated.

In particular, the rotor elements move 108 thereby along a circumferential direction 136 the receiving elements 112 around the axis of rotation 114 ,

Due to the wave device 124 become the ends 118 the rotor elements 118 during this movement along the circumferential direction 136 periodically moved towards each other and away from each other.

As a result, the rotor elements 108 periodically twisted so that the rotor elements 108 , in particular a central section 134 of each rotor element 108 , always optimally to the wind direction 116 be aligned.

The orientation of the shaft device 124 itself is doing by means of the alignment device 120 , in particular by means of the wing element 122 the alignment device 120 , guaranteed.

Because of that in the wind turbine 100 the rotor elements 108 be twisted periodically, points the wind turbine 100 preferably a particularly high efficiency.

The rotor elements 108 are in particular molded parts 110 , form components 110 For example, with a device 138 for producing a molded component 110 getting produced.

Such a device 138 is in particular the in the 5 to 8th illustrated winding device 140 ,

The winding device 140 is used in particular for wrapping a winding core 142 , which preferably has a plurality of winding elements 144 includes.

The winding device 140 includes several fiber dispensers 146 , which by means of a movement device 148 relative to each other and relative to the winding core 142 are movable.

By means of the fiber dispenser 146 become single fibers 150 , in particular continuous fibers, provided.

The winding device 140 also includes several hold-downs 152 , which preferably relative to each other and / or relative to the winding core 142 are movable.

The winding elements 144 of the winding core 142 are arranged relative to each other so that they are substantially parallel to each other and substantially parallel to a height direction 154 extend.

The winding elements 144 are also spaced from each other, so that between the winding elements 144 fiber channels 156 are formed.

As in particular the 7 and 8th it can be seen, the fiber dispensers 146 along different movement paths 158 to be moved.

With the help of the hold down 152 can the fibers 150 thus targeted by the fiber channels 156 passed through and for the formation of fiber layers 174 at the hub 142 to be ordered.

The winding device 140 further comprises a control device 160 , by means of which the winder 140 , in particular the movement device 148 , is controllable and / or regulated, that by means of the winding device 140 various processes for the production of molded components 110 are feasible.

In particular 5 it can be seen, are the fiber channels 156 aligned parallel and / or perpendicular to each other and extend substantially in the height direction 154 and perpendicular to it.

The fibers 150 can thus start from the fiber donors 146 from the top into the fiber channels 156 introduced and, in particular by means of the hold-down 152 just around the winding elements 144 be led around. In the in the 5 to 8th Illustrated embodiments is a winding core 142 with nine winding elements 144 intended.

Four winding elements 144 form corner elements 162 ,

Four more winding elements 144 form boundary elements 164 , Another winding element 144 forms an interior element 166 ,

Due to the matrix-shaped arrangement of the winding elements 144 are the corner elements 162 both ends of columns and rows of winding elements 144 , The border elements 164 are merely ends of a row or a column of winding elements 144 , The interior element 166 is neither an end of a column nor an end of a series of winding elements 144 ,

By means of in the 5 to 8th illustrated embodiments of a winding device 140 and a winding core 142 in particular, a molded component 110 with nine chambers 168 getting produced.

In the 9 to 12 are alternative embodiments of molded parts 110 shown.

9 shows a mold component 110 with three chambers 168 which, for example, by using a winding core 142 with three winding elements 144 can be produced.

The in the 10 and 11 illustrated mold components 110 For example, using nine or six winding elements 144 are produced and have accordingly nine or six chambers 168 on.

At the in 12 illustrated embodiment of a molded component 110 are three chambers 168 intended. In addition, at the in 12 illustrated embodiment of a molded component 110 a reinforcing structure 170 provided, which in particular an outer wall 172 of the molded component 110 strengthened.

Examples of winding processes for the production of molded components 110 by wrapping winding elements 144 a winding core 142 are in the 13 to 32 on the basis of a winding core 142 with nine winding elements 144 shown.

The 13 . 20 . 25 and 29 show in each case a plan view from above onto a fiber layer 174 ,

By superposing a plurality of such fiber layers 174 can the mold component 110 be produced in an endless winding process.

In the in the 13 to 19 The winding method shown becomes the fiber 150 successively through different fiber channels 156 passed. This successively different winding elements 144 wrapped.

In particular, first a corner element 162 wrapped. Subsequently, a boundary element 164 on a first corner element 162 opposite side of the winding core 142 wrapped. Following this will be another corner element 162 wrapped on the edge element 164 opposite side of the winding core 142 is arranged (see 14 to 16 ).

By further wrapping of each alternating a corner element 162 and a border element 164 (see the 17 to 19 ) may eventually be a fibrous layer 174 be provided, in which all winding elements 144 in each case at least simply with the fiber 150 are wrapped.

In the in the 20 to 24 The winding process shown four fibers 150 for forming a fiber layer 174 used.

In this case, by means of two fibers 150 always only the corner elements 162 wrapped. The two fibers 150 become point-symmetrical with respect to a central axis 176 of the winding core 142 emotional.

Two more fibers 150 are for wrapping each of two oppositely arranged edge elements 164 used.

By means of these two further fibers 150 In particular, a cross-shaped structure is formed.

As in particular the 20 and 24 can also be seen in this Winding a fiber layer 174 be provided, in which all winding elements 144 with fibers 150 are wrapped.

For the rest, this is true in the 20 to 24 illustrated winding method with respect to the 13 to 19 described winding method, so that reference is made to the above description in this regard.

That in the 25 to 28 The winding method shown essentially corresponds to that in the 20 to 24 However, this winding method differs from this in that the fibers 150 when wrapping the winding elements 144 be intertwined with each other. This allows a greater stability of the wound element to be produced 110 be generated.

For the rest, this is true in the 25 to 28 presented winding method with in the 20 to 24 illustrated winding method, so that reference is made to the above description in this respect.

That in the 29 to 32 illustrated winding method differs from that in the 20 to 24 illustrated winding process essentially in that the fibers 150 at least in sections with respect to the height direction 150 are arranged side by side (see in particular 32 ). In this way, every fiber layer can 174 taken in isolation very stable, as in all fiber channels 156 two fibers each 150 are arranged side by side.

For the rest, this is true in the 29 to 32 illustrated winding method with the in the 20 to 24 illustrated winding method, so that reference is made to the above description in this respect.

In the 33 and 34 are sectional views of a molded component 110 shown, which is a support structure 178 , several additional structural elements 180 as well as an outer skin 182 includes.

The supporting structure 178 is, for example, according to one of the described methods by wrapping several winding elements 144 a winding core 142 educated.

By means of the supporting structure 178 is the mold component 110 particularly stable.

In particular, when the mold component 110 a rotor element 108 a wind turbine 100 is, due to the geometry of the support structure 178 specifically a twisting of the rotor element 108 by introducing a compressive force into one end 118 of the rotor element 108 be initiated.

In particular 34 it can be seen, the rotor element 108 by suitable shaping of the additional structural elements 180 and by suitable shaping and design of the outer skin 182 have an optimized outer geometry. In particular, this can result in an optimized flow around the rotor element 108 be made possible with wind.

One by means of such rotor elements 108 formed wind turbine 100 can enable a particularly efficient conversion of wind energy into electrical energy.

LIST OF REFERENCE NUMBERS

100

Wind turbine

102

rotor device

104

wave

106

generator device

108

rotor member

110

mold component

112

receiving element

114

axis of rotation

116

wind direction

118

The End

120

alignment device

122

wing element

124

wave device

126

Wellenberg

128

trough

130

guiding device

132

Torsional buckling rod

134

central section

136

circumferentially

138

contraption

140

winder

142

winding core

144

winding element

146

fiber dispenser

148

mover

150

fiber

152

Stripper plate

154

height direction

156

fiber channel

158

motion path

160

control device

162

Corner

164

Boundary element

166

inner element

168

chamber

170

reinforcing structure

172

outer wall

174

fiber layer

176

central axis

178

supporting structure

180

structural element

182

shell

H

height

Claims (16)

Contraption ( 138 ) for producing a molded component ( 110 ), in particular a rotor element ( 108 ) of a wind turbine ( 100 ), comprising: - a winding core ( 142 ), which several, parallel to each other along a height direction ( 154 ) extending winding elements ( 144 ); - several fiber dispensers ( 146 ) for providing a plurality of continuous fibers ( 150 ); A movement device ( 148 ) for moving the fiber dispenser ( 146 ) relative to the winding core ( 142 ). Contraption ( 138 ) according to claim 1, characterized in that the fiber dispensers ( 146 ) by means of the movement device ( 148 ) are movable relative to each other and / or independently of each other. Contraption ( 138 ) according to one of claims 1 or 2, characterized in that the fiber dispensers ( 146 ) by means of the movement device ( 148 ) in a direction substantially perpendicular to the height direction ( 154 ) aligned plane are two-dimensionally movable. Contraption ( 138 ) according to one of claims 1 to 3, characterized in that the movement device ( 148 ) several motion paths ( 158 ) along which the fiber dispensers ( 146 ) are movable. Contraption ( 138 ) according to one of claims 1 to 4, characterized in that the device ( 138 ) several relative to the winding core ( 142 ) movable hold-downs ( 152 ). Contraption ( 138 ) according to one of claims 1 to 5, characterized in that the winding elements ( 144 ) are arranged in a matrix. Contraption ( 138 ) according to one of claims 1 to 6, characterized in that the winding core ( 142 ) several corner elements ( 162 ), several boundary elements ( 164 ) and at least one interior element ( 166 ). Contraption ( 138 ) according to one of claims 1 to 7, characterized in that between the winding elements ( 144 ) Fiber channels ( 156 ) are formed, which are substantially linearly through the entire winding core ( 142 ) extend therethrough. Contraption ( 138 ) according to one of claims 1 to 8, characterized in that between the winding elements ( 144 ) Fiber channels ( 156 ) are formed, wherein at least two fiber channels ( 156 ) are aligned substantially parallel to one another and / or at least two fiber channels ( 156 ) are oriented substantially perpendicular to each other. Wind turbine ( 100 ) comprising a rotor device ( 102 ), which several rotor elements ( 108 ), wherein the rotor elements ( 108 ) substantially parallel to each other and substantially parallel to a rotation axis ( 114 ) of the rotor device ( 102 ), wherein the rotor elements ( 108 ) between two receiving elements ( 112 ) of the rotor device ( 102 ) are arranged that opposite ends ( 118 ) of each rotor element ( 108 ) due to the rotational movement of the rotor elements ( 108 ) around the axis of rotation ( 114 ) are periodically movable towards and away from each other so that a periodic twisting of the rotor elements ( 108 ) is initiatable. Wind turbine ( 100 ) according to claim 10, characterized in that the rotor elements ( 108 ) by the periodic twisting of the rotor elements ( 108 ) at mutually different positions along a path of movement of the rotor elements ( 108 ) a desired Drehausrichtung relative to a wind direction ( 116 ), in particular a desired angle of attack, have. Wind turbine ( 100 ) according to one of claims 10 or 11, characterized in that at least one receiving element ( 112 ) a wave device ( 124 ), by means of which the ends ( 118 ) of the rotor elements ( 108 ) are periodically movable towards and away from each other. Wind turbine ( 100 ) according to claim 12, characterized in that the wave device ( 124 ) a guiding device ( 130 ) for guiding an end ( 118 ) at least one rotor element ( 108 ) in a circumferential direction ( 136 ) of the rotor device ( 102 ) and / or in an axial direction of the rotor device ( 102 ). Wind turbine ( 100 ) according to one of claims 10 to 13, characterized in that the rotor device ( 102 ) an alignment device ( 120 ), by means of which at least one receiving element ( 112 ), in particular a wave device ( 124 ) at least one receiving element ( 112 ), relative to a wind direction ( 116 ) is alignable. Wind turbine ( 100 ) according to one of claims 10 to 14, characterized in that the rotor elements ( 108 ) in each case at least one Drillknickelement, for example a Drillknickstange ( 132 ), by means of which by acting on the respective rotor element ( 108 ) with a pressure force which at least approximately in a direction parallel to the axis of rotation ( 114 ) of the rotor device ( 102 ) aligned longitudinal direction of the rotor element ( 108 ), a twisting of the rotor element ( 108 ) is initiatable. Wind turbine ( 100 ) according to one of claims 10 to 15, characterized in that the rotor elements ( 108 ) Comprise hollow sections.

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