DE202023106827U1 - Device for fastening the main shaft of a wind turbine - Google Patents

Abstract

A device for fastening the main shaft of a wind turbine, comprising a mounting base (1), on the inner wall of which an adjusting device (2) is attached, the adjusting device (2) comprising an electric slide rail (201), the outer wall of which slides with a protective device (202). is connected, wherein a support base (203) is attached to the top of the protective device (202), on the outer wall of which a fastening opening (206) is attached; wherein an outer wall of the fastening opening (206) is connected to a second fastening screw (207), support legs (204) being fastened to the underside of the support base (203), roller wheels (205) being fastened to the undersides of the support legs (204), wherein the inner wall of the mounting base (1) is firmly connected to the electrical slide rail (201).

Description

Technical area

The utility model relates to the technical field of wind turbines, in particular to a device for fastening the main shaft of a wind turbine.

Background technology

A wind turbine consists of a rotor, a generator, and the rotor includes components such as rotor blades, hubs and reinforcement members and so on. They are used to convert wind energy into electrical energy through the rotation of the rotor blades and the rotation of the generator head. The wind energy power source includes a wind turbine, a tower supporting the wind turbine, a battery charge controller, an inverter, a load shedding, a grid controller and a battery unit.

• Die vorhandene Vorrichtung zur Befestigung der Hauptwelle einer Windkraftanlage dient zur Besichtigung der Hauptwelle einer Windkraftanlage. Die vorhandene Vorrichtung zur Befestigung der Hauptwelle ist in der Regel an einer festen Position montiert. Da Windkraftanlagen unterschiedlicher Größe unterschiedliche Höhen haben und unterschiedlichen Windstärken ausgesetzt sind, variiert der Abstand bei der Befestigung der Hauptwelle je nach Größe der Windkraftanlage. Daher ist es erforderlich, eine Einstellvorrichtung zu verwenden, um den Abstand entsprechend der Größe der Windkraftanlage anzupassen.

An existing utility model (number: CN202742249U ) discloses a device for attaching the main shaft of a wind turbine. This device includes a support bracket mounted on the main shaft and fixing the main shaft, and an adjusting device attached to both ends of the support bracket and fixing the support bracket to the bent support arm of the tower frame of the wind turbine after fixing the main shaft. The support bracket consists of an upper support bracket and a lower support bracket, which after connection form a cavity for receiving the main shaft. The first tab plates at the ends of the upper support bracket and the second tab plates at the ends of the lower support bracket clamp the bent support arm of the wind turbine tower frame therebetween. The adjustment device consists of several adjustment screws, which are installed through threaded holes in the first tab plates and attach the upper support bracket to the bent support arm of the wind turbine tower frame. The present device for fastening the main shaft of a wind turbine enables the main shaft to be fastened after removing the gearbox. It features simple structure, easy installation and use. When implementing the utility model, it was discovered that the existing technology had the following problems:

• The existing device for fastening the main shaft of a wind turbine is used to inspect the main shaft of a wind turbine. The existing device for fastening the main shaft is usually mounted in a fixed position. Since different size wind turbines have different heights and are exposed to different wind strengths, the distance when attaching the main shaft varies depending on the size of the wind turbine. Therefore, it is necessary to use an adjusting device to adjust the distance according to the size of the wind turbine.

For this reason, a device for fixing the main shaft of a wind turbine is proposed, which solves the above-mentioned problems.

Content of the utility model

To solve the above problems, a device for fixing the main shaft of a wind turbine is proposed.

To achieve this goal, the present utility model proposes the following technical solutions: a device for fastening the main shaft of a wind turbine, which includes a mounting base on the inner wall of which an adjusting device is attached. The adjustment device includes an electric slide rail, the outer wall of which is slidably connected to a protective device. A support base is attached to the top of the protective device, the outer wall of which has a fastening opening.

The outer wall of the fastening opening is connected to a second fastening screw. Support legs are attached to the underside of the support base, with roller wheels attached to the undersides of the support legs, with the inner wall of the mounting base being firmly connected to the electric slide rail.

In a preferred embodiment, a groove is provided on the top of the mounting base, and a fastening device is attached to the top of the adjusting device. The outer wall of the fastening device is connected to a first fastening screw, the inner wall of the fastening device is connected to the main shaft component via a bearing.

In a preferred embodiment, the protective device comprises a carriage, on the top of which a connecting rod is attached, the top of the connecting rod being firmly connected to the support base.

In a preferred embodiment, a shock absorber is attached to the outer wall of the carriage, the outer wall of which is wrapped by a shock absorber spring.

In a preferred embodiment, the support base moves through the support legs and the roller wheels in the mounting base and with the support legs penetrating the groove.

In a preferred embodiment, the fastening device comprises an upper fastening plate, the underside of which is movably connected to a lower fastening plate. The bottom of the lower mounting plate is firmly connected to the top of the support base.

In a preferred embodiment, the inner wall of the lower fastening plate is movably connected to an upper inner plate, the underside of which is movably connected to a lower inner plate.

In a preferred embodiment, fastening holes are provided on the top of the upper inner plate and the lower inner plate, threaded holes are made on the inner wall of the lower fastening plate, and the fastening holes are perpendicular to the threaded holes.

1. 1. Im Vergleich zum Stand der Technik ermöglicht diese Vorrichtung zur Befestigung der Hauptwelle einer Windkraftanlage durch eine Einstellvorrichtung eine bewegliche Befestigung mit einstellbarem Abstand. Bei Verwendung der Vorrichtung kann die elektrische Gleitschiene gestartet werden, wodurch sich der Schlitten auf der Schutzeinrichtung bewegt. Beim Bewegen des Schlittens bewegt sich die Stützbasis durch den Verbindungsstab mit. Das Rollenrad, das sich an der Unterseite der Stützbasis befindet, rollt in der Montagebasis und ermöglicht so die Bewegung der Stützbasis. Während der Bewegung verhindern eine Stoßdämpferfeder und ein Stoßdämpfungsdämpfer Kollisionen zwischen den Befestigungseinrichtungen oder zwischen der Befestigungseinrichtung und den zwei Enden, was eine effektive Schutzmaßnahme für die Stützbasis darstellt. Nachdem die geeignete Position eingestellt wurde, kann die zweite Befestigungsschraube durch die Befestigungsöffnung in die Seitenwand der Stützbasis eingeführt und mit der Montagebasis befestigt werden. Diese Methode ermöglicht die Einstellung des Befestigungsabstands entsprechend der Größe einer Hauptwellenkomponente und der Höhe der Windkraftanlage. Dadurch wird eine stabilere Arbeitsweise der Hauptwellenkomponente gewährleistet, die eine bessere Tragfähigkeit aufweist und für den Einsatz unter hoher Belastung geeignet ist.
2. 2. Im Vergleich zum Stand der Technik ermöglicht diese Vorrichtung zur Befestigung der Hauptwelle einer Windkraftanlage durch eine Befestigungseinrichtung die Befestigung der Hauptwellenkomponente. Bei Verwendung der Vorrichtung wird die untere Innenplatte in die untere Befestigungsplatte eingesetzt und dann werden die Gewindelöcher mit den Befestigungslöchern ausgerichtet. Die Hauptwellenkomponente wird in die untere Innenplatte eingesetzt, und dann wird die obere Innenplatte auf die Hauptwellenkomponente gelegt und mit der unteren Innenplatte ausgerichtet. Die Schraube wird durch die Befestigungslöcher in die Gewindelöcher eingeführt und befestigt, um die obere Innenplatte und die untere Innenplatte in der unteren Befestigungsplatte zu befestigen. Die obere Befestigungsplatte wird dann an der unteren Befestigungsplatte befestigt, um die obere Inneneplatte weiter zu befestigen. Diese Methode ermöglicht es, die obere Befestigungsplatte bei Bedarf zu öffnen, um Inspektionen und Reparaturen an der Hauptwellenkomponente durchzuführen, während die Hauptwellenkomponente weiterhin befestigt bleibt. Sie bietet eine hohe praktische Anwendbarkeit.

The advantageous effects of the present utility model are:

1. 1. Compared to the prior art, this device for fastening the main shaft of a wind turbine through an adjusting device enables movable fastening with an adjustable distance. When using the device, the electric slide rail can be started, causing the carriage to move on the guard. When the carriage moves, the support base moves with it through the connecting rod. The roller wheel, located at the bottom of the support base, rolls within the mounting base, allowing the support base to move. During movement, a shock absorber spring and a shock absorber prevent collisions between the fasteners or between the fastener and the two ends, which is an effective protective measure for the support base. After the appropriate position is adjusted, the second mounting screw can be inserted through the mounting hole in the side wall of the support base and fixed with the mounting base. This method allows the mounting distance to be adjusted according to the size of a main shaft component and the height of the wind turbine. This ensures a more stable operation of the main shaft component, which has better load capacity and is suitable for use under high loads.
2. 2. Compared to the prior art, this device for fastening the main shaft of a wind turbine through a fastening device enables the main shaft component to be fastened. When using the device, the lower inner plate is inserted into the lower mounting plate and then the threaded holes are aligned with the mounting holes. The main shaft component is inserted into the lower inner plate, and then the upper inner plate is placed on the main shaft component and aligned with the lower inner plate. The screw is inserted into the threaded holes through the mounting holes and fastened to fix the upper inner plate and the lower inner plate into the lower fastening plate. The upper mounting plate is then attached to the lower mounting plate to further secure the upper inner plate. This method allows the top mounting plate to be opened when necessary to perform inspections and repairs on the main shaft component while still keeping the main shaft component attached. It offers a high level of practical applicability.

Illustration of the accompanying drawings

• l is a three-dimensional representation of the present utility model from an overall view.
• 2 is a schematic representation of the structure of the adjusting device of the present utility model.
• 3 is a schematic representation of the structure of the protective device of the present utility model.
• 4 is a schematic representation of the structure of the fastening device of the present utility model.

• 1, Montagebasis; 2, Verstelleinrichtung; 3, Nut; 4, Befestigungseinrichtung; 5, erste Befestigungsschraube; 6, Hauptwellenkomponente; 201, elektrische Gleitschiene; 202, Schutzeinrichtung; 2021, Schlitten; 2022, Verbindungsstab; 2023, Stoßdämpfungsfeder; 2024, Stoßdämpfungsdämpfer; 203, Stützbasis; 204, Stützbein; 205, Rollenrad; 206, Befestigungsöffnung; 207, zweite Befestigungsschraube; 401, obere Befestigungsplatte; 402, untere Befestigungsplatte; 403, Gewindelöcher; 404, obere Innenplatte; 405, untere Innenplatte; 406, Befestigungslöcher.

In the drawings, numbers indicate the following components:

• 1, mounting base; 2, adjustment device; 3, groove; 4, fastening device; 5, first fixing screw; 6, main wave component; 201, electric slide rail; 202, protective device; 2021, sleigh; 2022, Liaison Staff; 2023, shock absorption spring; 2024, shock absorption damper; 203, support base; 204, support leg; 205, roller wheel; 206, mounting opening; 207, second fastening screw; 401, upper mounting plate; 402, lower mounting plate; 403, threaded holes; 404, upper inner plate; 405, lower inner plate; 406, mounting holes.

Specific Embodiments

The technical solution is described clearly and completely below using the figures in the exemplary embodiments of the utility model. Obviously, the present exemplary embodiment represents only a part of the exemplary embodiments of the utility model. Based on the exemplary embodiments in this utility model application, all other exemplary embodiments that were developed by experts in this field without any creative activity also fall within the scope of protection of this utility model.

Example 1

Referring to the 1-3 This exemplary embodiment of the present utility model provides a device for fastening the main shaft of a wind turbine. The device comprises a mounting base 1, on the inner wall of which an adjusting device 2 is attached. The adjusting device 2 comprises an electric slide rail 201, the outer wall of which is slidably connected to a protective device 202. A support base 203 is attached to the top of the protective device 202, on the outer wall of which a fastening opening 206 is attached.

The outer wall of the fastening opening 206 is connected to a second fastening screw 207. A support leg 204 is attached to the underside of the support base 203, to the underside of which a roller wheel 205 is attached. The inner wall of the mounting base 1 is firmly connected to the electrical slide rail 201.

When using the device, the electric slide rail 201 can be started, causing a carriage 2021 to move on the guard 202. When moving the carriage 2021, the support base 203 moves along with it through a connecting rod 2022. The roller wheel 205, located at the bottom of the support base 203, rolls in the mounting base 1, allowing movement of the support base 203. During movement, a shock absorber spring 2023 and a shock absorber 2024 prevent collisions between the fasteners 4 or between the fasteners 4 and the two ends, which is an effective protective measure for the support base 203. After the appropriate position is adjusted, the second fixing screw 207 can be inserted into the side wall of the support base 203 through the fixing hole 206 and fixed with the mounting base 1. This method allows the mounting distance to be adjusted according to the size of a main shaft component 6 and the height of the wind turbine. This ensures a more stable operation of the main shaft component 6, which has a better load capacity and is suitable for use under high loads.

Embodiment 2

• In einer bevorzugten Ausführungsform ist auf der Oberseite der Montagebasis 1 eine Nut 3 angebracht, an der Oberseite der Verstelleinrichtung 2 ist eine Befestigungseinrichtung 4 befestigt. Die Außenwand der Befestigungseinrichtung 4 ist mit einer ersten Befestigungsschraube 5 verbunden, die Innenwand der Befestigungseinrichtung 4 ist über ein Lager mit der Hauptwellenkomponente 6 verbunden; weiter wird bei Verwendung der Vorrichtung die Hauptwellenkomponente 6 in die Befestigungseinrichtung 4 eingesetzt und die Befestigungseinrichtung 4 wird mit der ersten Befestigungsschraube 5 fixiert, um die Hauptwellenkomponente 6 zu befestigen.
• In einer bevorzugten Ausführungsform umfasst die Schutzeinrichtung 202 einen Schlitten 2021, an dessen Oberseite ein Verbindungsstab 2022 befestigt ist, die Oberseite des Verbindungsstabs 2022 ist fest mit der Stützbasis 203 verbunden. Während der Bewegung des Schlittens 2021 bewegt sich die Stützbasis 203 durch den Verbindungsstab 2022 mit.
• In einer bevorzugten Ausführungsform ist an der Außenwand des Schlittens 2021 ein Stoßdämpfungsdämpfer 2024 befestigt, dessen Außenwand von einer Stoßdämpferfeder 2023 umwickelt ist. Dadurch wird eine Kollision verhindert und die Stützbasis 203 geschützt.
• In einer bevorzugten Ausführungsform bewegt sich die Stützbasis 203 durch das Stützbein 204 und das Rollenrad 205 in der Montagebasis 1. Das Stützbein 204 durchdringt die Nut 3. Dadurch wird die Stützbasis 203 unterstützt.
• In einer bevorzugten Ausführungsform umfasst die Befestigungseinrichtung 4 eine obere Befestigungsplatte 401, deren Unterseite beweglich mit einer unteren Befestigungsplatte 402 verbunden ist. Die Unterseite der unteren Befestigungsplatte 402 ist fest mit der Oberseite der Stützbasis 203 verbunden. Dadurch wird eine Befestigung ermöglicht.
• In einer bevorzugten Ausführungsform ist die Innenwand der unteren Befestigungsplatte 402 beweglich mit einer oberen Innenplatte 404 verbunden, deren Unterseite beweglich mit einer unteren Innenplatte 405 verbunden ist. Dadurch wird eine vorläufige Positionierung und Befestigung der Hauptwellenkomponente 6 ermöglicht.
• In einer bevorzugten Ausführungsform sind auf der oberen Innenplatte 404 und der unteren Innenplatte 405 Befestigungslöcher 406 angebracht, an der Innenwand der unteren Befestigungsplatte 402 sind Gewindelöcher 403 angebracht, wobei die Befestigungslöcher 406 senkrecht zu den Gewindelöchern 403 angebracht sind. Dadurch können die obere Innenplatte 404 und die untere Innenplatte 405 an der unteren Befestigungsplatte 402 befestigt werden.

Based on Embodiment 1, the proposed embodiment is related to the specific working methods as described in FIG 1-4 are presented in detail, further refined below:

• In a preferred embodiment, a groove 3 is attached to the top of the mounting base 1, and a fastening device 4 is attached to the top of the adjusting device 2. The outer wall of the fastening device 4 is connected to a first fastening screw 5, the inner wall of the fastening device 4 is connected to the main shaft component 6 via a bearing; further, when using the device, the main shaft component 6 is inserted into the fastener 4 and the fastener 4 is fixed with the first fastening screw 5 to fasten the main shaft component 6.
• In a preferred embodiment, the protective device 202 comprises a carriage 2021, on the top of which a connecting rod 2022 is attached, the top of the connecting rod 2022 is firmly connected to the support base 203. During the movement of the carriage 2021, the support base 203 moves along with the connecting rod 2022.
• In a preferred embodiment, a shock absorber 2024 is attached to the outer wall of the carriage 2021, the outer wall of which is wrapped by a shock absorber spring 2023. This prevents a collision and protects the support base 203.
• In a preferred embodiment, the support base 203 moves through the support leg 204 and the roller wheel 205 in the mounting base 1. The support leg 204 penetrates the groove 3. This supports the support base 203.
• In a preferred embodiment, the fastening device 4 comprises an upper fastening plate 401, the underside of which is movably connected to a lower fastening plate 402. The bottom of the lower mounting plate 402 is firmly connected to the top of the support base 203. This makes attachment possible.
• In a preferred embodiment, the inner wall of the lower mounting plate 402 is movably connected to an upper inner plate 404, the underside of which is movably connected to a lower inner plate 405 is connected. This enables preliminary positioning and fastening of the main shaft component 6.
• In a preferred embodiment, fastening holes 406 are made on the upper inner plate 404 and the lower inner plate 405, threaded holes 403 are made on the inner wall of the lower fastening plate 402, the fastening holes 406 being perpendicular to the threaded holes 403. This allows the upper inner plate 404 and the lower inner plate 405 to be attached to the lower mounting plate 402.

The working procedure of the present utility model is as follows: first, the mounting base 1 is installed on the wind turbine. When using the device, the electric slide rail 201 can be started, causing the carriage 2021 to move on the guard 202. When moving the carriage 2021, the support base 203 moves along with the connecting rod 2022. The roller wheel 205, located at the bottom of the support base 203, rolls in the mounting base 1, allowing movement of the support base 203. During movement, a shock absorber spring 2023 and a shock absorber 2024 prevent collisions between the fasteners 4 or between the fasteners 4 and the two ends, which is an effective protective measure for the support base 203. After the appropriate position is adjusted, the second fixing screw 207 can be inserted into the side wall of the support base 203 through the fixing hole 206 and fixed with the mounting base 1. The lower inner plate 405 is inserted into the lower mounting plate 402 with the threaded holes 403 aligned with the mounting holes 406. The main shaft component 6 is inserted into the lower inner plate 405, and then the upper inner plate 404 is placed on the main shaft component 6 and aligned with the lower inner plate 405. The screw is inserted into the threaded holes 403 through the fastening holes 406 and fastened to fix the upper inner plate 404 and the lower inner plate 405 in the lower fastening plate 402. Then, the upper fixing plate 401 is placed on the upper inner plate 404 and fixed with the lower fixing plate 402 by the first fixing screw 5. This is the working principle of a device for fastening the main shaft of a wind turbine according to the present utility model.

It should be noted that the above-mentioned exemplary embodiments only serve to explain the technical solution of the present utility model and are not restrictive. Although the best embodiment has been described in detail, those skilled in the art should understand that they may modify or equivalently replace the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• CN 202742249 U [0003]

Claims (8)

A device for fastening the main shaft of a wind turbine, comprising a mounting base (1), on the inner wall of which an adjusting device (2) is attached, the adjusting device (2) comprising an electric slide rail (201), the outer wall of which slides with a protective device (202). is connected, wherein a support base (203) is attached to the top of the protective device (202), on the outer wall of which a fastening opening (206) is attached; wherein an outer wall of the fastening opening (206) is connected to a second fastening screw (207), support legs (204) being fastened to the underside of the support base (203), roller wheels (205) being fastened to the undersides of the support legs (204), wherein the inner wall of the mounting base (1) is firmly connected to the electrical slide rail (201). The device for fastening the main shaft of a wind turbine Claim 1 , characterized in that a groove (3) is attached to the top of the mounting base (1), a fastening device (4) being attached to the top of the adjusting device (2), the outer wall of which is connected to a first fastening screw (5) and the inner wall of which is connected to the main shaft component (6) via a bearing. The device for fastening the main shaft of a wind turbine Claim 1 , characterized in that the protective device (202) comprises a carriage (2021), on the top of which a connecting rod (2022) is attached, the top of the connecting rod (2022) being firmly connected to the support base (203). The device for fastening the main shaft of a wind turbine Claim 3 , characterized in that a shock absorber (2024) is attached to the outer wall of the carriage (2021), the outer wall of which is wrapped by a shock absorber spring (2023). The device for fastening the main shaft of a wind turbine Claim 1 , characterized in that the support base (203) moves through the support legs (204) and the roller wheels (205) in the mounting base (1) and the support legs (204) penetrate the groove (3). The device for fastening the main shaft of a wind turbine Claim 2 , characterized in that the fastening device (4) comprises an upper fastening plate (401), the underside of which is movably connected to a lower fastening plate (402), the underside of the lower fastening plate (402) being firmly connected to the top of the support base (203). is. The device for fastening the main shaft of a wind turbine Claim 6 , characterized in that the inner wall of the lower fastening plate (402) is movably connected to an upper inner plate (404), the underside of which is movably connected to a lower inner plate (405). The device for fastening the main shaft of a wind turbine Claim 7 , characterized in that fastening holes (406) are made on the upper inner plate (404) and the lower inner plate (405) and threaded holes (403) are made on the inner wall of the lower fastening plate (402), the fastening holes (406) being perpendicular to the threaded holes (403).

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