EP3803113A1 - Windenergieanlage - Google Patents
WindenergieanlageInfo
- Publication number
- EP3803113A1 EP3803113A1 EP19732269.6A EP19732269A EP3803113A1 EP 3803113 A1 EP3803113 A1 EP 3803113A1 EP 19732269 A EP19732269 A EP 19732269A EP 3803113 A1 EP3803113 A1 EP 3803113A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- locking
- rotor shaft
- rotor
- wind energy
- energy plant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/50—Maintenance or repair
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D15/00—Transmission of mechanical power
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/30—Retaining components in desired mutual position
- F05B2260/31—Locking rotor in position
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Definitions
- the invention relates to a wind turbine.
- a rotor rotatable about a substantially horizontal axis and having rotor blades arranged thereon can be set in rotation by wind.
- the rotor is firmly connected to a rotor shaft - possibly via a gear - with a generator for converting the rotational energy of the rotor into electrical energy.
- the power-transmitting rotating components from the rotor to the generator are collectively referred to as a drive train and are arranged in a gondola rotatably mounted on a tower.
- the drive train is mounted at several points, wherein usually at least one bearing is arranged in the region of the rotor shaft. In a so-called. Three-point bearing further storage of the driveline takes place directly over the transmission, d. H.
- the rotor shaft itself does not have any further bearing, but is mounted indirectly via the integrated mounting only there due to the fixed connection to a transmission or even with a slow-running large generator.
- EP 1 251 268 A2 and EP 2 620 636 A1 propose rings which are fastened to the rotor shaft and have a multiplicity of outboard bores into which a bolt can optionally engage for locking.
- the invention relates to a wind energy plant comprising a rotor rotatable about a rotor axis and having a plurality of rotor blades and a rotor connected thereto
- the invention is based on the finding that a simultaneous engagement of at least three locking bolts in the locking ring of a rotor shaft of a wind energy plant not only ensures locking of the rotor against unwanted rotational movement, but also sufficient support of the rotor shaft. Because of this support, a drive train element attached to the rotor shaft, such as a gearbox or the generator, can also be released from the rotor shaft, even if the rotor shaft is supported indirectly via the drive train element in question. Since, according to the invention, the locking ring is fixedly connected to the rotor shaft and the locking pins are part of the machine carrier, additional components are not required for locking the rotor or for supporting the rotor shaft in the wind energy installation according to the invention.
- the number of locking openings corresponds to the number of locking bolts
- their respective arrangement is to be coordinated with one another such that, at least in one rotational position of the rotor shaft, each locking bolt can engage in one locking opening in each case.
- locking openings and locking pins are distributed uniformly over the circumference, a locking in a number of rotational positions of the rotor shaft corresponding to the number of locking openings or locking bolts is possible.
- the number of locking recesses is greater than the number of locking bolts. If the locking recesses are suitably arranged, the rotor shaft and thus the rotor can be locked in a number of rotational positions exceeding the number of locking pins.
- the locking recesses are distributed uniformly over the circumference of the locking ring, so the angular distance between each two adjacent locking recesses is thus constant.
- the rotor shaft or the rotor can be locked in a number of rotational positions corresponding to the number of locking recesses.
- the angular distance between two adjacent locking bolts corresponds to the angular spacing of two adjacent locking recesses or a multiple thereof, it is ensured that when a locking bolt engages in a locking recess, any other locking bolt can likewise engage in a locking depression.
- the individual locking bolts can often be made smaller, which can simplify the integration of the locking bolts into the machine carrier. It is further preferred if at least part of the locking bolts are combined in locking bolt groups, within which the angular distance between two adjacent locking bolts corresponds to the angular distance between two adjacent locking recesses. Particularly advantageous have three Arretianssbolzen philosophy proven each with identical number of locking pin.
- the locking bolts and / or locking bolt groups may be arranged symmetrically with respect to a vertical plane through the axis of the rotor shaft.
- the locking bolts and / or locking bolt groups can also be distributed uniformly over the circumference around the rotor shaft.
- the locking ring can be a separate component fixedly connected to the rotor shaft, it is preferred if the locking ring is integrated directly into the rotor shaft, that is to say is formed integrally with the rotor shaft.
- the arresting ring be integrated in a provided at the end remote from the rotor mounting flange of the rotor shaft.
- the mounting flange usually has a radial bore pattern of axial through-holes for attachment of another drive train element, such as, for example, a transmission, or for direct attachment of the generator. It is preferred if the locking recesses are each arranged centrally between two adjacent axial through-holes of the mounting flange.
- the locking bolts can be hydraulically displaceable.
- the locking bolts may, for example, be connected to a piston arranged in a cylinder or be made in one piece therewith.
- the locking bolts have a bore with an internal thread for engagement of a securing bolt and the locking recesses radial through-holes to the interior of the rotor shaft for the passage of securing bolts at its radial end face.
- suitable securing bolts can be inserted through the radial through holes and screwed into the locking pins. This can be safely avoided accidental retraction of the locking pin, which would lead to a repeal of the rotor lock or the support of the rotor shaft.
- the locking pins are each surrounded by a compensating bushing and / or in each of the locking recesses a compensating bushing is provided to compensate for manufacturing tolerances and to ensure a uniform introduction of force into all the locking bolts.
- the compensating bushes are designed so deformable that on the one hand manufacturing tolerances can be compensated, on the other hand sufficient resistance can be made during loading during locking and / or support, in order to transmit the forces occurring.
- the compensating bushings can be made of plastic. It is also possible for the compensation bushing to be designed as a coating applied directly to the locking bolt and / or in the locking recesses.
- FIG. 1 shows a schematic overview of a drive train according to the invention
- FIGS. 2a, b schematic detail views of a drive train according to the invention.
- FIG. 1 shows a drive train 1 of a wind turbine (not shown), starting from which, with reference to FIGS. 2a, b, the present invention will be explained.
- the rotor shaft 2 As well as partially the gear 3 connected thereto are shown in FIG.
- the transmission 3 is a planetary gear
- the planet carrier 4 is fixedly connected to the rotor shaft 2.
- the actual rotor comprising the rotor blades at the opposite end of the gear 3 of the rotor shaft 2 and the not shown end of the transmission 3 arranged generator.
- the drive train 1 is rotatably mounted on the machine carrier 7 in a region remote from the transmission 3 by means of a rolling bearing 6 arranged in a bearing housing 5 and interacting directly with the rotor shaft 2.
- the transmission 3 is fastened to the machine carrier 7 via a gearbox 8. Due to the connection with the planet carrier 4, the rotor shaft 2 is mounted indirectly via its bearing 9 opposite the machine carrier 7 at this end.
- a so-called three-point mounting is realized in which the transmission 3 can not be easily detached from the rotor shaft 2 due to the indirect mounting of the rotor shaft 2. Rather, to release the transmission 3, a prior support of the rotor shaft 2 is required.
- FIGS. 2a, b a detailed illustration of the transmission-side end of the rotor shaft 2 with gearbox frame 8 and machine carrier 7 is shown by a wind energy installation according to the invention with a drive train 1 that is comparable in principle to FIG.
- the gear 3 is in Figure 2a, b of the designated holding elements 3 'disassembled, what - as below executed - in the wind turbine according to the invention also readily possible.
- the rotor shaft 2 has at its gear-side end an inwardly directed fastening flange 20, which at the same time also forms a locking ring 21, on which a multiplicity-uniformly distributed over the circumference-here 36, of radially extending, conically shaped Arret michsveriana 22 is provided. From the bottom of the locking recesses 22, a radial through-hole 23 extending up to the inner wall of the fastening flange 20 is provided in each case. Between each two locking depressions 22 or radial through bores 23, an axial through-bore 24 is provided, via which the rotor shaft 2 is connected in known manner to the planet carrier 4 of a transmission 3 or else to the input shaft of a large transmission. Generator can be connected (see Figure 1).
- locking pins 10 which are oriented in the radial direction and are hydraulically displaceable are provided whose outer shape is adapted to the conical shape of the locking recesses 22.
- four locking pins 10 are combined to form a locking pin group 11, with adjacent locking pins 10 of a locking pin group 1 1 each having the same angular spacing as two adjacent locking recesses 22.
- the locking bolt groups 11 are distributed uniformly over the circumference such that all locking bolts 10 can be brought into engagement with a respective locking recess 22 at the same time.
- the locking pin 10 In order to prevent the lock or support is released accidentally by the locking pin 10, the locking pin 10 at its front side with a respective Innerthreaded blind hole 12.
- a locking screw (not shown) guided through a through-bore 23 on the locking ring 21 can engage, with which a locking bolt 10 can finally be secured in the position shown in FIG. 2a, b.
- the locking bolts 10 may each have a compensation bushing made of plastic on the areas provided for engagement with the locking recesses 22 and / or the locking recesses 22.
- the compensating bushing can also be designed as a coating applied directly to the locking bolt 10 or into the locking recesses 22.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018004464.6A DE102018004464A1 (de) | 2018-06-06 | 2018-06-06 | Windenergieanlage |
PCT/EP2019/064847 WO2019234179A1 (de) | 2018-06-06 | 2019-06-06 | Windenergieanlage |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3803113A1 true EP3803113A1 (de) | 2021-04-14 |
Family
ID=66999781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19732269.6A Pending EP3803113A1 (de) | 2018-06-06 | 2019-06-06 | Windenergieanlage |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3803113A1 (de) |
DE (1) | DE102018004464A1 (de) |
WO (1) | WO2019234179A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3869033B1 (de) * | 2020-02-20 | 2023-07-19 | Siemens Gamesa Renewable Energy Innovation & Technology, S.L. | Verriegelungssystem zum verriegeln der hauptwelle einer windturbine und windturbine |
DE102021107906A1 (de) | 2021-03-29 | 2022-09-29 | Enovation Gmbh | Eine Vorrichtung zum Arretieren einer Rotorwelle einer Windenergieanlage, eine Windenergieanlage und ein Verfahren zum Herstellen einer Windenergieanlage |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10119427A1 (de) | 2001-04-20 | 2002-10-24 | Enron Wind Gmbh | Kopplungsvorrichtung für eine Windkraftanlage |
PT1617075E (pt) | 2004-07-13 | 2009-03-18 | Eickhoff Machinenfabrik Gmbh | Processo e dispositivo para a troca de uma transmissão numa instalação de energia eólica |
US7721434B2 (en) | 2005-07-27 | 2010-05-25 | General Electric Company | Methods and apparatus for replacing objects on horizontal shafts in elevated locations |
DE102007035598A1 (de) * | 2007-07-30 | 2009-02-05 | S.B. Patent Holding Aps | Windenergieanlage |
DE102008054100A1 (de) * | 2008-10-31 | 2010-05-06 | Suzlon Energy Gmbh | Windturbine mit einer Arretierungsvorrichtung |
ES2552460T3 (es) * | 2009-03-13 | 2015-11-30 | Vestas Wind Systems A/S | Bloqueo de rotor para una turbina eólica |
JP6033622B2 (ja) * | 2011-09-27 | 2016-11-30 | ナブテスコ株式会社 | 風車用駆動装置 |
DK2620636T3 (en) | 2012-01-24 | 2016-11-07 | Nordex Energy Gmbh | The arresting device for a drive train of a wind turbine |
DE102012215575A1 (de) * | 2012-09-03 | 2014-03-06 | Wobben Properties Gmbh | Verfahren und Regeleinrichtung für eine Windenergieanlage sowie Computerprogrammprodukt, digitales Speichermedium und Windenergieanlage |
DE102016116945A1 (de) * | 2016-09-09 | 2018-03-15 | Wobben Properties Gmbh | Rotorarretiervorrichtung für eine Windenergieanlage und Verfahren |
WO2018054435A1 (en) * | 2016-09-21 | 2018-03-29 | Vestas Wind Systems A/S | An assembly for a wind turbine, and method of operating an assembly for a wind turbine |
-
2018
- 2018-06-06 DE DE102018004464.6A patent/DE102018004464A1/de active Pending
-
2019
- 2019-06-06 WO PCT/EP2019/064847 patent/WO2019234179A1/de unknown
- 2019-06-06 EP EP19732269.6A patent/EP3803113A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2019234179A1 (de) | 2019-12-12 |
DE102018004464A1 (de) | 2019-12-12 |
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Effective date: 20201130 |
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AK | Designated contracting states |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS GAMESA RENEWABLE ENERGY SERVICE GMBH |
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Effective date: 20221121 |