Tool, system and method for moving a component in a nacelle of a wind turbine

Abstract

A tool for moving a component (113) in a nacelle (106) of a wind turbine (100) has: - a first lever (210) with a first end (211) and a second end (212), - a second lever (220) with a third end (221) and a fourth end (222), - a third lever (230) with a central area (233), - wherein the first lever (210) is pivotably connected to the third lever (230) and the second lever (220) is pivotably connected to the third lever (230), - wherein the first end (211) can be fixed in a position relative to the gondola (106) and the third end (221) can be fixed in a position relative to the gondola (106) spaced apart from the first support (201), so that the central section (233) moves along the first direction (121) when the first lever (210) and the second lever (220) pivot.

Description

[0001] The disclosure relates to a tool for moving a component in the nacelle of a wind turbine. Furthermore, the disclosure relates to a system comprising a nacelle for a wind turbine, a component arranged in the nacelle, and a tool described herein. The disclosure also relates to a method for moving a component along a first direction in the nacelle of a wind turbine, in particular by means of a tool described herein.

[0002] Wind turbines are used to convert wind energy into electrical energy. A wind turbine has a rotor that drives a generator via a drive train. The drive train, generator, and other components can be mounted in a nacelle of the wind turbine, which is positioned on a tower.

[0003] It is desirable to specify a tool for moving a component that can be used reliably and cost-effectively. It is also desirable to specify a system comprising a nacelle, a component, and a tool that enables reliable and cost-effective movement of the component using the tool. Furthermore, it is desirable to specify a method for moving a component within the nacelle of a wind turbine that can be implemented reliably and cost-effectively.

[0004] According to one embodiment, a tool for moving a component along a first direction in a nacelle of a wind turbine is provided. The component is, in particular, a drivetrain component, for example, a gearbox. The first direction runs, for example, approximately along the horizontal and, for example, perpendicular to a second direction along which a tower of the wind turbine is oriented.

[0005] The tool has a first lever. The first lever has a first end and a second end. The tool has a second lever. The second lever has a third end and a fourth end. The tool has a third lever. The third lever has a fifth end and a sixth end. The third lever has a central section. The central section is located between the fifth end and the sixth end. In particular, the central section is spaced the same distance from the fifth end as it is from the sixth end.

[0006] The first lever is pivotally connected to the third lever. The second lever is pivotally connected to the third lever. In particular, the first, second, and third levers are connected to each other in such a way that translational displacement relative to each other is blocked, while rotational movement relative to each other is possible.

[0007] The first end can be fixed in position relative to the gondola at a first bracket. The third end can be fixed in position relative to the gondola at a second bracket, such that the first and third ends are spaced apart along the first direction. The three levers are coupled to each other and can be attached to the two brackets in such a way that the central section moves along the first direction when the first lever pivots around the first bracket and when the second lever pivots around the second bracket.

[0008] By pivoting the first and second levers around their first and third ends, the third lever is pivoted such that the central section essentially performs a linear movement along the first direction. The third lever is thus essentially rotated around the central section while being moved along the first direction. Therefore, the linear movement of the central section is achieved by pivoting the three levers. This makes it possible to move the component linearly along the first direction using a tool with pivotable levers. In particular, this tool eliminates the need for linearly movable tool components such as rails or other translational guides. Only pivoting movements in rotary joints are required to enable the linear movement of the component along the first direction.

[0009] The tool enables the component to be moved within the nacelle, for example, for maintenance or replacement. Seals can be replaced or bearings serviced, particularly on the side facing the rotor, which is made accessible by moving the component with the tool. Even very heavy components weighing 50 tons or more can be moved reliably in the first direction. This eliminates the need for an external crane or other complex and comparatively expensive machinery to move the component. Moving the component with the tool is therefore fast, reliable, and cost-effective. Unlike an external crane, the tool can be used regardless of prevailing wind conditions.

[0010] The tool is operated manually, allowing the component to be moved without additional electric drives. In particular, the tool can be supported by brackets on the gondola, so the component's weight continues to stabilize the gondola. No opening of the gondola, especially the roof, is necessary during operation, saving time and effort, and making the tool usable regardless of the weather. Compared to a rail system, the tool is more space-efficient, as no long rails need to be installed inside the gondola. Rail wheels are also unnecessary. Furthermore, the risk of rail jamming is avoided because the tool operates solely through pivoting and swiveling joints, eliminating the translational movement required by rails.

[0011] The tool requires little to no additional structure within the gondola, resulting in cost-effective implementation. The tool's components, such as the three levers, are relatively lightweight and can be handled manually or with an existing onboard light crane. An external crane and an open roof are unnecessary. Safety is enhanced by the well-defined movement, which consists solely of pivoting motions.

[0012] It is possible to always transfer the component's load to the gondola at the same point, preventing any significant shift in the gondola's weight distribution. This eliminates the need for additional structural requirements. The tool is easy, safe, and quick to assemble and disassemble, making it a safe and cost-effective solution.

[0013] According to one embodiment, the tool has a spacer rod. The spacer rod can be attached to the first end and the third end. A predetermined distance along the first direction between the first end and the third end can be achieved by means of the spacer rod. In particular, the predetermined distance depends on the length of the levers, such that the first end and the third end are correctly spaced from each other along the first direction to enable the linear movement of the central area by means of pivoting.

[0014] According to a further embodiment, the first and second levers are arranged diagonally in an operational state. In particular, the first and second levers are arranged diagonally to each other throughout operation and the entire pivoting movement. When the first lever is attached to the first bracket, the second lever is attached to the second bracket, and the third lever is connected to the first and second levers, the first and second levers are always arranged diagonally to each other. This allows for linear movement of the central area during the pivoting of the first and second levers.

[0015] According to at least one embodiment, the first lever, the second lever, and the third lever can be coupled to each other in the manner of a Chebyshev mechanism. The Chebyshev-type levers enable the conversion of the rotary or pivoting movement of the first and second levers into the linear movement of the central section. In particular, the first, second, and third levers together form a Chebyshev mechanism.

[0016] According to at least one embodiment, the first lever and the second lever extend from the third lever in opposite directions. For example, the first lever and the second lever are arranged approximately parallel to each other or parallel to each other. For example, in the operational state, the third lever extends along the first direction, and the first and second levers extend upwards and downwards, respectively. Along the second direction, the third lever is thus always positioned between the first end and the third end.

[0017] According to at least one embodiment, the first lever, the second lever, and the third lever can be coupled to each other in the manner of a Watt mechanism. This coupling in the manner of a Watt mechanism enables the conversion of the pivoting movement of the first and second levers into the nearly linear movement of the central section. In particular, the first, second, and third levers together form a Watt mechanism.

[0018] According to at least one embodiment, the third lever has a mounting interface. The mounting interface is located in the central region. In particular, the mounting interface is spaced the same distance from the fifth end as from the sixth end. The mounting interface is designed for attaching the third lever to the component. In particular, the mounting interface can be reversibly attached to the component in order to transmit the movement of the third lever to the component.

[0019] According to one embodiment, a system is described that includes a nacelle for a wind turbine. The system includes a component located inside the nacelle. The system includes a tool according to one of the embodiments described herein. The first end is fixed relative to the nacelle at the first support. The third end is fixed relative to the nacelle at the second support. In particular, the first end and the third end are fixed such that they are not translationally displaceable along the first direction, but allow a rotational movement for pivoting the first lever and the second lever.

[0020] The third lever is attached to the component for moving it along the first direction relative to the gondola. Specifically, the attachments of the first end, the third end, and the third lever are reversible, making the tool versatile and suitable for use in different gondolas and / or for moving different components. After use, the tool can be disassembled and, for example, removed from the gondola.

[0021] According to at least one embodiment, the nacelle has a support structure. The component is held by the support structure. The support structure is, for example, supported on a tower of the wind turbine. The support structure carries, for example, the rotor bearing, the gearbox, the generator, and other components in the nacelle. The first end and the third end are each fixed in position relative to the support structure. In particular, for example, the first bracket and the second bracket are fixedly arranged on the support structure. For example, the first bracket and the second bracket are parts of the support structure. It is also possible that the brackets are designed separately from the support structure. Using the tool, it is possible to move the component along the first direction relative to the support structure.

[0022] According to at least one embodiment, the system has a rotor shaft. The rotor shaft is rotatably mounted in the nacelle. The rotor shaft is supported, in particular, by the supporting structure. The first end and the third end are each fixed to the rotor shaft. For example, the first end and the third end are fixed inside the rotor shaft. Thus, the tool can be positioned inside the rotor shaft.

[0023] According to at least one embodiment, the first and second brackets each have a pivot joint. This pivot joint allows the first and second levers to be pivoted, for example, relative to the support structure. A linear displacement movement of the first and third ends relative to the gondola, and especially relative to the support structure, is blocked by the respective pivot joints. This enables reliable movement while avoiding the risk of jamming that would occur with a linear translational movement.

[0024] For example, the component includes a drivetrain component or is a drivetrain component. For example, the component includes a gearbox or is a gearbox. Using the tool, it is possible, for example, to move the gearbox along the first direction relative to the supporting structure and / or the rotor shaft.

[0025] According to at least one embodiment, the system comprises a plurality of tools as described herein. In particular, it is possible that the system comprises only identically designed tools. Alternatively, it is possible that the tools of the plurality of tools are designed differently from one another, for example, according to a Chebyshev mechanism and a Watt mechanism. By means of the plurality of tools, it is possible to move the component safely and reliably and to support it at various spaced-apart support points.

[0026] According to one embodiment, a method for moving a component along a first direction in the nacelle of a wind turbine is described. In particular, the method can be performed using one or more tools according to the embodiments described herein. For example, the method is carried out using a system according to the embodiments described herein. Advantages, further developments, and features of the tool, the system, and the method thus apply to the tool, the system, and the method as a whole.

[0027] A first lever is connected to a third lever such that the first and third levers can pivot relative to each other. In particular, the connection is designed such that translational displacement is blocked. A second lever is connected to the third lever such that the second and third levers can pivot relative to each other. In particular, translational displacement of the second and third levers relative to each other is blocked.

[0028] A central section of the third lever is reversibly attached to the component. The first lever is pivoted about a first axis of rotation. The second lever is pivoted about a second axis of rotation. Both the first and second axes of rotation are oriented perpendicular to the first direction. By pivoting the first and second levers, the central section of the third lever is moved. Thus, by pivoting the first and second levers, the component is moved along the first direction.

[0029] The connection of the three levers thus enables the linear movement of the component, especially relative to the gondola, by means of pivoting movements of the first lever and the second lever.

[0030] According to at least one embodiment, the first lever is reversibly attached to the gondola. The second lever is also reversibly attached to the gondola. In particular, the first and second levers are fixedly attached to the gondola, so that during operation a linear displacement of the first and second levers is blocked, and only pivoting movement relative to the gondola is possible. For example, the first and second levers are each fixedly attached to a support structure of the gondola.

[0031] Further advantages, features, and enhancements will become apparent from the following exemplary embodiments, which are explained in conjunction with the figures. Identical, similar, and functionally equivalent elements can be designated with the same reference numerals.

[0032] They show: Fig. 1 a schematic representation of a wind turbine according to an exemplary embodiment, Fig. 2 to 8 each schematic representations of a tool or system according to different embodiments, and Fig. 9 a schematic representation of a flowchart of a process according to an exemplary embodiment.

[0033] Fig. Figure 1 shows a schematic representation of a wind turbine 100 according to an exemplary embodiment. The wind turbine 100 has a tower 102. The tower 102 is attached at one end to a ground by means of a foundation 104. A nacelle 106 is rotatably mounted at the other end of the tower 102, opposite the ground. The tower thus extends along a second direction 122.

[0034] For example, gondola 106 has a component 113 (for example) Fig. 2) or several components 113, for example a generator and other components. A rotor 103 is, for example, coupled to the generator by means of a drive train. The drive train has, for example, a rotor shaft 108 (for example, Fig. 5), a gearbox, a clutch, a rotor brake, and other components, not all of which are explicitly shown in the figures. The rotor 103, for example, has one or more rotor blades 110 arranged on a rotor hub 112. The rotor hub 112 is in turn connected to the rotor shaft 108.

[0035] A system 300 with one tool 200 or several tools 200 is provided to move the component 113 in the gondola 106 relative to the gondola transversely to the second direction 120 horizontally.

[0036] Fig. Figures 2 to 8 show the tool 200 or several tools 200 according to exemplary embodiments in ready-to-use states.

[0037] The tool 200 has a first lever 210. The tool 200 has a second lever 220. The tool 200 has a third lever 230. The first lever 210, the second lever 220, and the third lever 230 are pivotably coupled to one another to move the component 113, in particular a drivetrain component, for example, the transmission, along a first direction 121.

[0038] The first direction 121, the second direction 122, and a third direction 123 are each perpendicular to each other. The first direction 121 and the third direction 123 run essentially horizontally, and the second direction 122 runs essentially vertically.

[0039] The first lever 210 and the second lever 220 are pivotably coupled to the gondola 106, in particular to a support structure 107 of the gondola 106. The first lever 210 can be attached to a first bracket 201. The second lever 220 can be attached to a second bracket 202.

[0040] A first pivot joint 203 is formed between the first bracket 201 and the first lever 210. Thus, the first lever 210 can be pivoted about a first axis of rotation 205. The first axis of rotation 205 runs, in particular, along the third direction 223.

[0041] The second lever 220 and the second bracket 202 together form a second pivot joint 204, so that the second lever 220 can pivot about a second axis of rotation 206. The second axis of rotation 206 runs parallel to the first axis of rotation 205 and along the third direction 223.

[0042] The pivot joints 203 and 204 are each designed such that a linear displacement of the first lever 210 and the second lever 220 along the first direction 121 is blocked. The pivoting movement of the first lever 210 and the pivoting movement of the second lever 220 is realized by means of the two pivot joints 203 and 204.

[0043] The first lever 210 extends between a first end 211 and a second end 212. The second lever 220 extends between a third end 221 and a fourth end 222. For example, the first end 211 is attached to the first bracket 201, allowing the first lever 210 to pivot about the first end 211. The translational displacement of the first end 211 is blocked by the pivot joint 205.

[0044] The second lever 220 is pivotably attached to the second bracket 202 at its third end 221. The translational displacement of the third end 221 is blocked by means of the swivel joint 204.

[0045] The third lever is coupled at its second end 212 and at its fourth end 222 to the first lever 210 and the second lever 220. The third lever 230 extends between a fifth end 231 and a sixth end 232. The fifth end 231 is pivotally connected to the second end 221 by means of a pivot joint, whereby displacement is blocked. The sixth end 232 is pivotally connected to the fourth end 222 by means of a pivot joint, whereby displacement is blocked. Thus, the three levers 210, 220, 230 are pivotally coupled to each other.

[0046] The third lever 230 has a central section 233. The central section 233 is located between the fifth end 231 and the sixth end 232. In particular, the central section 233 is equidistant from the fifth end 231 and from the sixth end 232. Specifically, the center of gravity of the third lever 230 is located in the central section 233.

[0047] The third lever 230 has a mounting interface 234 on its central area 233. The mounting interface 234 is designed for coupling with the component 113. By means of the mounting interface 234, the third lever 230 can be reversibly attached to the component 113 in order to transmit drive energy for moving the component 113 along the first direction 121 between the third lever 230 and the component 113.

[0048] To move component 113 along the first direction 121, the first lever 210 and the second lever 220 are pivoted, which in turn pivots and rotates the third lever 230. The movement of the third lever 230 is such that the central area 233, and in particular the fastening interface 234, is moved almost linearly or linearly along the first direction 121. Thus, the tool 200 enables the linear displacement of component 113 by means of the pivoting movements. According to further examples, other forms of movement besides linear displacement are also possible, so that component 113 can, for example, be moved along a circular segment. In particular, a defined end position for the movement of component 113 is always specified.

[0049] The first end 211 and the third end 221 are spaced apart from each other at a predetermined distance 241 along the first direction 121. For example, a spacer bar 240 is provided, which defines the distance 241 between the first end 211 and the third end 221 and reliably maintains it during operation. The spacer bar 240 can also be omitted.

[0050] For example, each of the levers 210, 220, 230 weighs 25 kilograms or less, so that the levers 210, 220, 230 can each be carried by a single person.

[0051] According to the exemplary embodiment of the Fig. 2 and Fig. In section 3, the levers 210, 220, and 230 of the tool 200 are coupled to each other in the manner of a Chebyshev mechanism. The first lever 210 and the second lever 220 are arranged diagonally. The first end 211 and the third end 221 are arranged in a common plane, which is defined in particular by the first direction 121 and the third direction 123. The first lever 210 and the second lever 220 are, for example, both supported on a base of the supporting structure 107.

[0052] The distance 241, the length of the first lever 210, the length of the second lever 220, and the length of the third lever 230 are specified, in particular, as dependent on each other. For example, the ratio between the distance 241, the length of the first lever 210, and the length of the third lever 230 is 4:5:2. The length of the first lever 210 is, in particular, between the first end 211 and the second end 212. The length of the second lever 220 is between the third end 221 and the fourth end 222. The length of the third lever 230 is between the fifth end 231 and the sixth end 232. The first lever 210 and the second lever 220 are, in particular, of the same length.

[0053] Fig. Figure 3 shows the tool 200 in various states of motion, based on the Chebyshev mechanism. To distinguish the three depicted states of motion, the levers 210, 220, and 230 are labeled a, b, and c, respectively. In the left-hand state (210a, 220a, 230a), the first lever 210 and the second lever 220 are pivoted to the left from the central position, so that the third lever 230 is moved and pivoted to the left. In the central position (210b, 220b, 230b), the third lever 230 is oriented essentially horizontally along the first direction 121. In the third position (210c, 220c, 230c), the first lever 210 and the second lever 220 are pivoted to the right, so that the third lever 230 is pivoted to the right. Fig. Figure 3 shows that the central section 233 is always arranged along a straight line in the various states of motion, which is aligned along the first direction 121. Despite pivoting the third lever 230, the central section 233 thus moves linearly along the first direction 121, which enables the linear movement of component 113 by means of the tool 200.

[0054] Fig. Figure 4 shows tool 200 according to a further embodiment. In the embodiment according to Fig. In section 4, the tool 200 is designed according to the Watt mechanism. The first lever 210 and the second lever 220 are arranged essentially parallel to each other when the third lever 230 is aligned along the first direction 121. Extending from the third lever 230, the first lever 210 and the second lever 220 extend in opposite directions, for example, along the second direction 122. For example, extending from the third lever 230, the first lever 210 extends downwards and the second lever 220 extends upwards.

[0055] The first bracket 201 and the second bracket 202 are arranged on opposite sides. The first bracket 201 and the second bracket 202 are offset from each other along the first direction 121 by a distance of 241. The first bracket 201 and the second bracket 202 are arranged in different planes, as shown in the illustration. Fig. 4. In particular, the third lever 230 is spanned by the first direction 121 and the third direction 123. Along the second direction 122, the third lever 230 is arranged between the first end 211 and the third end 221. The component 113 is arranged along the second direction 122 between the first end 211 and the third end 221.

[0056] The following deductions will be made to the Fig. Five to eight different operating positions for tool 200 are explained. Tool 200 is always to be understood as being usable both according to the Fig. 2 and Fig. 3. may be designed as a Chebyshev mechanism or according to Fig. 4 as a Watt mechanism.

[0057] According to Fig. 5 Three tools 200 are provided to move component 113. For example, the tools 200 are each configured according to the embodiment shown in the Fig. 2 and Fig. 3. Two tools 200 are arranged below a center of gravity 114 of component 113, offset from each other along the third direction 123. Therefore, in the Fig. Only one of these tools 200 is visible. The third tool 200 is arranged offset along the first direction 121. For example, the two tools 200 below the center of gravity 114 bear a main load of the component 113, and the third tool 200, arranged offset from them, ensures stability to prevent the component 113 from tilting. The third tool 200 has to bear a significantly smaller load.

[0058] Fig. Figure 6 shows an embodiment in which two tools 200 engage opposing torque supports 115. The torque supports 115 are offset along the third direction 223, such that in the Fig. 6 only one of these tools 200 is visible. The third tool 200 is arranged offset along the first direction 121 and is also specifically designed to bear loads.

[0059] In the exemplary embodiment according to Fig. 7 are comparable to Fig. 6 Two tools 200 are attached to the torque supports 115. The third tool 200 is attached to an extension 116 that projects from component 113 into an interior 109 of the rotor shaft 108. The third tool 200 is supported on the rotor shaft 108 in the interior 109 and, in the illustrated embodiment, is specifically designed according to a Watt mechanism. Fig. 4. This makes it possible to support the tool on opposite sides of the rotor shaft 109. For example, the interior 109 of the rotor shaft 108 is accessible from a region of the rotor hub 112. This makes it possible to reversibly attach the third tool 200 in the interior 109. The extension 119 serves to transmit the force between the tool 200 and the component 113. The length of the extension 116 can be flexibly selected, with a longer extension resulting in better load distribution due to the leverage forces.

[0060] Fig. Figure 8 shows an embodiment in which one or two of the tools 200 are arranged above the component 113, so that the component 113 is suspended and displaceable along the first direction 121. The suspended arrangement is also suitable for the embodiments according to Figure 8. Fig. 5 to 7 are possible. The second and / or third tool 200 is in the exemplary embodiment according to Fig. Tool 200 is arranged below component 113 to stabilize it. This tool 200 has to bear relatively small loads overall. In this example, the main load is borne by the tool 200 or the two tools 200 above component 113, particularly since these are located closer to the center of gravity of component 113 along the first direction 121. It is also possible to arrange the tools 200 such that the tool 200 or tools 200 located below the component bear the main load. In this case, the tool 200 or tools 200 above the component are then primarily intended to stabilize component 113.

[0061] Various combinations of the different application positions of the tools 200 according to Fig. Numbers of 5 to 8 are possible. Additional positions not explicitly shown are also possible. It is possible to use only one tool 200, two tools 200, three tools 200, four tools 200, or more.

[0062] Three of the tools 200 provide stable support, especially if these three tools are not all arranged in the same plane perpendicular to the direction of movement 121. Two of the tools 200 lie in a plane spanned by the second direction 122 and the third direction 123. The third tool 200 lies offset to this along the first direction 121. For example, the two tools 200 that are arranged in a common plane are arranged at a slight inward tilt to prevent lateral movement along the third direction 123.

[0063] For example, the third tool 200, which is arranged offset to the rear along the first direction 121, is arranged slightly elevated along the second direction 122. The rotor shaft 108 is inclined slightly downwards, and the component 113, which is, for example, a gearbox, is also inclined slightly downwards. Due to the slightly elevated arrangement of the third tool 200, it is possible to utilize the weight of the component 113 to move it away from the rotor shaft 108 along the first direction 121. The elevated arrangement of the third tool 200 counteracts this force away from the rotor shaft 108, thus achieving a stable position for the component 113, in which the component 113 is positioned away from the rotor shaft 108 along the first direction 121.

[0064] For example, a single drive, such as a single hydraulic cylinder and / or a chain hoist per tool 200, is sufficient to align and adjust the position of the tool 200 relative to the component 113. Using drives that are individually adjustable according to the kinematics of the tools 200 and the weight of the component 113, it is possible to transfer the weight precisely and reliably from the component 113, especially from standard interfaces of the component 113, to the tools 200.

[0065] The swivel joints 203, 204 can be implemented in different ways. For example, the swivel joints 203, 204 can be implemented as a pin in a socket, with the socket completely surrounding the pin. The pin is aligned along the axis of rotation 205, 206. For assembly, the socket must be pushed onto the pin along the axis of rotation 205, 206. Alternatively, it is also possible to provide an open, for example, approximately semicircular, joint socket that can be pushed onto a pin. This makes it possible to mount the joint by moving it perpendicular to the axis of rotation 205, 206. Combinations of different configurations of the swivel joints 203, 204 are also possible.

[0066] Fig. Figure 9 shows a flowchart of a procedure for moving component 113. In particular, tool 200, for example a plurality of tools 200, is used to move component 113.

[0067] In step 401, the first lever 210 is connected to the third lever 230, so that the two levers 210, 230 can be pivoted relative to each other.

[0068] In step 402, the second lever 220 is connected to the third lever 230, so that the two levers 220, 230 can be pivoted relative to each other.

[0069] In step 403, the central area 233 of the third lever 230, in particular the fastening interface 234, is reversibly attached to the component 113.

[0070] The first lever 210 and the second lever 220 are each pivotably attached relative to the nacelle 106, for example to the support structure 107 and / or the rotor shaft 108.

[0071] Steps 401, 402 and 403 can be performed in any order.

[0072] In step 404, the first lever is pivoted around the axis of rotation 205.

[0073] In step 405, the second lever is pivoted around the second axis of rotation.

[0074] In step 406, the central area 233 is moved along the first direction, and the component 113 is moved along the first direction 121.

[0075] Steps 404, 405 and 406 occur simultaneously.

[0076] Tool 200, system 300, and the method enable reliable movement of comparatively heavy components 113 within the gondola 106. Tool 200 is made of relatively lightweight parts that are easy to install and remove within the gondola 106. Thus, the tool enables reliable, safe, and cost-effective movement of component 113. Reference sign 100 wind turbines 102 Tower 103 Rotor 104 Foundation 106 gondolas 107 Supporting structure 108 Rotor shaft 109 Interior 110 rotor blade 112 Rotor hub 113 Component 114 Focus 115 torque mounts 116 Extension 121 first direction 122 second direction 123 third direction 200 tools 201 first bracket 202 second bracket 203, 204 Swivel joint 205 first axis of rotation 206 second axis of rotation 210 first lever 211 first end 212 second end 220 second lever 221 third end 222 fourth end 230 third lever 231 fifth end 232 sixth end 233 Middle range 234 Mounting interface 240 spacer bar 241 distance 300 System 401 - 406 Procedural steps

Claims

[1] Tool for moving a component (113) along a first direction (121) in a nacelle (106) of a wind turbine (100), wherein the tool (200) comprises: - a first lever (210) with a first end (211) and a second end (212), - a second lever (220) with a third end (221) and a fourth end (222), - a third lever (230) with a fifth end (231), a sixth end (232) and a middle section (233) between the fifth end (231) and the sixth end (232), - wherein the first lever (210) is pivotably connected to the third lever (230) and the second lever (220) is pivotably connected to the third lever (230), - wherein the first end (211) can be fixedly attached to a first support (201) relative to the gondola (106) and the third end (221) can be fixedly attached to a second support (202) spaced apart from the first support (201), so that the central section (233) moves along the first direction (121) when the first lever (210) pivots about the first support (201) and the second lever (220) pivots about the second support (202). [2] Tool according to the preceding claim, comprising a spacer rod (240) which can be attached to the first end (211) and the third end (221) for a predetermined distance (241) along the first direction (121) between the first end (211) and the third end (221). [3] Tool according to one of the preceding claims, wherein the first lever (210) and the second lever (220) are arranged crosswise in an operational state. [4] Tool according to one of the preceding claims, wherein the first lever (210), the second lever (220) and the third lever (230) can be coupled to each other in the manner of a Chebyshev mechanism. [5] Tool according to claim 1, wherein the first lever (210) and the second lever (220) extend from the third lever (230) in opposite directions. [6] Tool according to claim 5, wherein the first lever (210), the second lever (220) and the third lever (230) can be coupled to each other in the manner of a Watt mechanism. [7] Tool according to one of the preceding claims, wherein the third lever (230) has a fastening interface (234) in the central area (233) for fastening the third lever (230) to the component (113). [8] System comprising a nacelle (106) for a wind turbine (110), a component (113) arranged inside the nacelle (106), and a tool (200) according to any one of the preceding claims, wherein - the first end (211) is fixed in position relative to the gondola (106) at the first support (201), - the third end (221) is fixed in position relative to the gondola (106) at the second support (202), and - the third lever (230) is attached to the component (113) to move the component (113) along the first direction (121) relative to the gondola (106). [9] System according to claim 8, wherein the gondola (106) has a support structure (107) by which the component (113) is held, wherein the first end (211) and the third end (221) are each fixed in position relative to the support structure (107). [10] System according to claim 8 or 9, comprising a rotor shaft (108) rotatably mounted in the nacelle (106), wherein the first end (211) and the third end (221) are each fixed in position relative to the rotor shaft (108). [11] System according to one of claims 8 to 10, wherein the first support (201) and the second support (202) each have a pivot joint (203, 204). [12] System according to any one of claims 8 to 11, wherein the component (113) comprises a drivetrain component, in particular a gearbox. [13] System according to any one of claims 8 to 12, comprising a plurality of tools (200) according to any one of claims 1 to 7, wherein the tools (20) are arranged to jointly move the component (113) along the first direction (121) relative to the gondola (106). [14] Method for moving a component along a first direction (121) in a nacelle (106) of a wind turbine (100), comprising: - Connecting a first lever (210) to a third lever (230) such that the first lever (210) and the third lever (230) can be pivoted relative to each other, - Connecting a second lever (220) to the third lever (230) so that the second lever (220) and the third lever (230) can be pivoted relative to each other, - reversible attachment of a central area (233) of the third lever (230) to the component (113), - Pivoting the first lever (210) about a first axis of rotation (205) which is oriented transversely to the first direction (121), - Pivoting the second lever (220) about a second axis of rotation (206) which is oriented transversely to the first direction (121), and thereby - Moving the central section (233) of the third lever (230) and moving the component (113) each along the first direction (121). [15] The method of claim 14, comprising: - reversible attachment of the first lever (210) and the second lever (220) to the gondola (106).

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