DK178466B1 - Main shaft fixture for wind turbines. - Google Patents

Main shaft fixture for wind turbines. Download PDF

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Publication number
DK178466B1
DK178466B1 DKPA201400573A DKPA201400573A DK178466B1 DK 178466 B1 DK178466 B1 DK 178466B1 DK PA201400573 A DKPA201400573 A DK PA201400573A DK PA201400573 A DKPA201400573 A DK PA201400573A DK 178466 B1 DK178466 B1 DK 178466B1
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DK
Denmark
Prior art keywords
main shaft
fixture
wind turbine
nacelle
pressure
Prior art date
Application number
DKPA201400573A
Other languages
Danish (da)
Inventor
Per E Fenger
Original Assignee
Liftra Ip Aps
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Liftra Ip Aps filed Critical Liftra Ip Aps
Priority to DKPA201400573A priority Critical patent/DK178466B1/en
Priority to DKPA201500527A priority patent/DK201500527A1/en
Priority to US15/517,288 priority patent/US10378518B2/en
Priority to BR122022023804-1A priority patent/BR122022023804B1/en
Priority to CN201580054642.2A priority patent/CN106795866B/en
Priority to MA040522A priority patent/MA40522A/en
Priority to CA2963016A priority patent/CA2963016C/en
Priority to MX2017004689A priority patent/MX2017004689A/en
Priority to EP15848694.4A priority patent/EP3204639B1/en
Priority to EP22211827.5A priority patent/EP4198301A1/en
Priority to ES15848694T priority patent/ES2935584T3/en
Priority to PCT/DK2015/000040 priority patent/WO2016055065A1/en
Priority to BR112017007156-8A priority patent/BR112017007156B1/en
Priority to DK15848694.4T priority patent/DK3204639T3/en
Priority to JP2017518784A priority patent/JP6648123B2/en
Application granted granted Critical
Publication of DK178466B1 publication Critical patent/DK178466B1/en
Publication of DK201400573A1 publication Critical patent/DK201400573A1/en
Priority to ZA2017/02109A priority patent/ZA201702109B/en
Priority to PH12017500623A priority patent/PH12017500623B1/en
Priority to MX2023000217A priority patent/MX2023000217A/en
Priority to US16/452,617 priority patent/US20190316569A1/en

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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

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  • Wind Motors (AREA)

Abstract

Der angives et hovedaksel-fikstur (10) til fiksering af hovedakslen (4) på en vindmølle ved gennemførelse af montage- og reparationsarbejder på tunge dele af vindmøllen arrangeret i nacellen på vindmøller, hvilket fikstur (10) opdelt i et antal sektioner for montering på stabile konstruktionsdele (2), der forefindes i en vind- mølles nacelle, herunder nacellens bundramme (2). Hovedaksel-fiksturet (10) omfatter justerbare trykdorne (18) med tryksko (20), der medfører at fiksturet 10 bliver anvendeligt uanset geometrien af hoved- akslen (4) på en vindmølle, og således, at dette kan monteres uden at fiksere roto- ren (8). Hovedaksel-fiksturet (10) omfatter tillige faciliteter (40) montering af hen- holdsvis en letvægtskran (12), og en selvophejsende kran (14) med et jordbaseret spil, samt en rotorlås (24), der i kombination med til hovedaksel-fiksturet (10) hø- rende aktuatorer (36) imellem hovedaksel-fiksturet (10) og bundrammen (2), med- fører, at det er muligt at forskyde hovedakslen (4) og hovedaksellejet (38) vertikalt fra dettes leje i nacellen til, at lejet kan serviceres eller udskiftes.A main shaft fixture (10) is indicated for fixing the main shaft (4) to a wind turbine by performing assembly and repair work on heavy parts of the wind turbine arranged in the wind turbine nacelle, which fixture (10) is divided into a number of sections for mounting on the wind turbine. stable structural members (2) contained in the windmill's nacelle, including the nacelle's bottom frame (2). The main shaft fixture (10) comprises adjustable pressure mandrels (18) with pressure shoes (20), which cause the fixture 10 to be usable regardless of the geometry of the main shaft (4) on a wind turbine, and so that it can be mounted without fixing the rotor. pure (8). The main shaft fixture (10) also includes facilities (40) for mounting a lightweight crane (12) and a self-raising crane (14) with an earth-based winch, respectively, and a rotor lock (24), which in combination with the main shaft fixture (10) actuating (36) between the main shaft fixture (10) and the bottom frame (2) means that it is possible to displace the main shaft (4) and the main shaft bearing (38) vertically from its bearing in the shaft to; that the bearing can be serviced or replaced.

Description

Den foreliggende opfindelse angår et hovedaksei-fikstur til fiksering af en hovedaksel på en vindmølle ved gennemførelse af montage- og reparationsarbejder på tunge dele af en vindmølle, arrangeret I en nacelle på en vindmølle, hvilket fikstur er opdelt i et antal sektioner for montering på stabile konstruktionsdele, der forefindes i en vindmølles nacelle, herunder nacellens bundramme.The present invention relates to a main shaft fixture for fixing a main shaft to a wind turbine by carrying out assembly and repair work on heavy parts of a wind turbine arranged in a nacelle on a wind turbine, which fixture is divided into a number of sections for mounting on stable wind turbines. structural parts contained in the nacelle of a wind turbine, including the nacelle bottom frame.

Ved gennemførelse af montage og reparationsarbejder i nacellen på vindmøller, er der ofte behov for at foretage fiksering af vindmøllens hovedaksel, f.eks. ved skift og servicering af vindmølles gearkasse, generator, eller ved udskiftning af dennes hovedlejer, eller andre tunge konstruktionsdele der forefindes I nacellen på en vindmølle. Nævnte komponenter der er indbyrdes forbundne og forankrede til nacellens bundramme, er i samlet tilstand stabile, men når der skal foretages en adskillelse ved reparation og servicering af møllen, opstår der statisk ustabilitet og ubalance, der kan medføre at møllens konstruktionsdele beskadiges, derfor er der et behov for at fiksere vindmøllens hovedaksel.When carrying out assembly and repair work in the nacelle on wind turbines, it is often necessary to fix the main shaft of the wind turbine, e.g. by changing and servicing the wind turbine gearbox, generator, or by replacing its main bearings, or other heavy structural parts contained in the nacelle of a wind turbine. Said components which are interconnected and anchored to the bottom frame of the nacelle are stable in aggregate, but when a separation is to be made when repairing and servicing the mill, static instability and imbalance can occur, which can cause damage to the construction parts of the mill. a need to fix the main shaft of the wind turbine.

Fra DE 102008013539 A1 (NORDEX ENERGY GMBH) kendes et hovedak-sei-fikstur til fiksering af hovedakslen på en vindmølle under gennemførelse af montage- og reparationsarbejder på tunge dele der er arrangeret i nacellen på vindmøller, hvilket fikstur er opdelt i et antal sektioner for montering på stabile konstruktionsdele der forefindes i en vindmølles nacelle, herunder nacellens buramme.DE 102008013539 A1 (NORDEX ENERGY GMBH) discloses a main axle sawing fixture for fixing the main axle of a wind turbine during the assembly and repair work on heavy parts arranged in the nacelle on wind turbines, which fixture is divided into a number of sections for mounting on stable structural members contained in the windmill's nacelle, including the nacelle's buram.

Hidtil har det været nødvendigt at standse møllen, dvs. bremse denne af og fiksere rotoren med en rotorlås, og derefter montere et egentligt fikstur til fastholdelse af hovedakslen, hvorefter servicering af komponenterne i vindmøllens nacelle kan finde sted. Imidlertid er det uhensigtsmæssigt at skulle indstille driften af vindmøllen imens montage af hovedaksel-fiksturet finder sted, idet stilstand af vindmøllen i den tid der medgår til montage af fiksturet, medfører et ikke ubetydeligt driftstab i form af manglende produceret energi (strøm). Yderligere er de kendte hovedaksel-fiksturer relativt ufieksibie i forhold til akselgeometri, hvilket betyder at der i praksis skal konstrueres og oplagres tilnærmelsesvis lige så mange forskellige fiksturer, som der forekommer forskellige akselgeometrier, hvilket er uhensigtsmæssigt. Desuden er anvendelse af seivophejsende kraner, hvis spil er placeret på jordoverfladen nær møllens tårn under udbredelse, idet anvendelsen heraf rummer store besparelser i omkostningsniveauet til servicering af vindmøller, idet anvendelse af store mobilkraner til håndtering af ovennævnte store og tunge komponenter, overflødiggøres. Dette medfører imidlertid behov for faciliteter til forankring af den seivophejsende kran med det jordbaserede spil i nacelien. Yderligere fordrer det seivophejsende spil dog tilstedeværelse af en letvægtskran, til ophejsning af kastetblokke m.m. der skal forankres på/i nacelien eller på vindmøl-lens vinger, hvilket stiller krav om faciliteter for montage af letvægtskranen.So far, it has been necessary to stop the mill, ie. brake this off and fix the rotor with a rotor lock, and then mount an actual fixture for retaining the main shaft, after which servicing the components of the wind turbine's nacelle can take place. However, it is inappropriate to suspend the operation of the wind turbine while mounting the main shaft fixture takes place, as the downtime of the wind turbine during the time of mounting the fixture results in a not insignificant loss of operation in the form of energy (lack of electricity) produced. Furthermore, the known main shaft fixtures are relatively inflexible with respect to shaft geometry, which means that in practice, approximately as many different fixtures as different shaft geometries must be constructed and stored, which is inappropriate. In addition, the use of seismic lifting cranes, whose spillage is located on the ground surface near the mill tower, is in widespread use, making use of large savings in the cost level for servicing wind turbines, using large mobile cranes for handling the above large and heavy components. However, this does require facilities for anchoring the crane lifting crane with the nacelle ground-based winch. In addition, however, the level raising game requires the presence of a lightweight crane, for raising cast blocks and more. it must be anchored on / in the nacelle or on the wind turbine's wings, which requires facilities for mounting the lightweight crane.

Det er således opfindelsens formål at angive et hovedaksei-fikstur, der tilgodeser en mere universel anvendelse i forhold til akseigeometri, der endvidere ikke fordrer standsning og fiksering af vindmøllens hovedakse!.It is thus the object of the invention to provide a main axis fixture which accommodates a more universal application with respect to axis geometry, which furthermore does not require stopping and fixing the main axis of the wind turbine.

Det er endvidere opfindelsens formål at angive et hovedaksei-fikstur der yderligere frembyder faciliteter for montage af en seivophejsende kran, med et jordbaseret spil.It is further the object of the invention to provide a main axle fixture which further provides facilities for mounting a crane lifting crane, with a ground-based winch.

Det er ved opfindelsen indset, at dette er muligt ved et hovedaksefikstur af den indledningsvist angivne art, som er kendetegnet ved, at hovedaksel-fiksturet omfatter i det mindste tre, i hovedsagen, omkring hovedakslens centerakse symmetrisk placerede, radialt forskydelige trykdorne, hvis imod høvedakslen vendende ender er forsynede med tryksko, og hvilke trykdorne er forskydelige imellem en passiv, tilbagetrukket position hvor trykskoene er konfigureret til at være placeret i en afstand fra hovedakslens overflade, og en aktiv fremskudt låsbar position hvor trykskoene er konfigureret til at være i anlæg med høvedakslen.It is recognized by the invention that this is possible with a main axle fixture of the type initially specified, characterized in that the main axle fixture comprises at least three, substantially, about the center axis of the main axle, symmetrically positioned, radially displaceable thrust pins, if opposed to the main axle. facing ends are provided with pressure shoes and which pressure pins are displaceable between a passive, retracted position where the pressure shoes are configured to be spaced from the surface of the main shaft, and an active advanced lockable position where the pressure shoes are configured to be in contact with the main shaft .

Herved opnås en betragtelig fleksibilitet med hensyn til hovedaksei-fiksturets anvendelse til fiksering af hovedaksler med forskellig geometri på vindmøller, idet alene graden af forskydeligheden af trykdornene og størrelsen af hovedaksel-fikstu ret er begrænsende for anvendeligheden heraf. Hovedaksei-fiksturet er således både anvendeligt til fiksering af cylinderformede aksler med forskellige diametre, og til fiksering af aksler med konisk facon. Hovedaksei-fiksturet ifølge opfinde!- sen er fierdeit, og kan monteres på faste konstruktionsdele, fortrinsvist naceilens bundramme, mens vindmøllens rotor er i drift.Hereby considerable flexibility is obtained with regard to the use of the main shaft fixture for fixing main shafts of different geometry on wind turbines, with the degree of displacement of the pressure mandrels only and the size of the main shaft fixture limiting its applicability. Thus, the main axle fixture is useful both for fixing cylindrical shafts of different diameters and for fixing shafts with tapered shape. The main axle fixture according to the invention is further and can be mounted on fixed structural parts, preferably the bottom frame of the nace, while the rotor of the wind turbine is in operation.

I den hensigt at kunne anvende et selvophejsende kran, med et jordbaseret spil sammen med hovedaksel-fiksturet ifølge opfindelsen, kan at dette omfatte monteringsfaciiiteter for en selvophesjsende kran, hvis spil er placeret på jordoverfladen nær vindmøllens fod.In order to be able to use a self-lifting crane, with a ground-based winch together with the main shaft fixture of the invention, this may include mounting facilities for a self-raising crane whose winch is located on the ground surface near the wind turbine foot.

Herved opnås den fordel, at etablering af faciliteter til fiksering af vindmøllens hovedaksel, samt etablering af monteringsfaciiiteter for den selvophejsende kran med et jordbaseret spil, finder sted samtidigt, hvilket sparer arbejdsgange, og plads, hvilket er af stor vigtighed, idet pladsforholdene i nacellen i en vindmølle oftest er sparsomme, og yderligere, at såvel hovedaksel-fiksturet som monteringsfaciliteterne for en selvophejsende kran i nacellen, normalt benytter de samme faste konstruktionsdele i nacellen tli forankring.Hereby the advantage is obtained that the establishment of facilities for fixing the main shaft of the wind turbine, as well as the establishment of mounting facilities for the self-raising crane with an earth-based winch, takes place simultaneously, which saves workflows and space, which is of great importance, as the space conditions in the a wind turbine is usually sparse, and further that both the main shaft fixture and the mounting facilities for a self-raising crane in the nacelle usually use the same fixed structural members in the nacelle tli anchorage.

I den hensigt at sikre en let og hurtig etablering af den selvophejsende kran, hvilket fordrer ophejsning af kastetblokke med wirer hidrørende fra det jordbasere-de spil med en letvægtskran, der monteres på stabile konstruktionsdele I nacellen, kan hovedaksel-fiksturet omfatte monteringsfaciiiteter for en letvægtskran.In order to ensure the easy and quick establishment of the self-raising crane, which requires the lifting of cast blocks with the ground-based winch with a lightweight crane mounted on stable structural members in the nacelle, the main shaft fixture may comprise mounting facilities for a lightweight crane. .

I den hensigt at sikre en hurtig fiksering af hovedakslen med hovedaksel-fiksturet ifølge opfindelsen, kan trykdornene være forsynede med aktuatorer for forskydning og fastholdelse af trykskoene i henholdsvis den passive position og den aktive position, alternativt en valgfri position imellem den passive og den aktive position. Herved opnås en tidsbesparelse ved forskydning af trykskoene imellem den passive position og den aktive position, trykket an imod hovedakslens overflade.In order to ensure fast fixing of the main shaft with the main shaft fixture according to the invention, the pressure mandrels may be provided with actuators for displacing and holding the pressure shoes in the passive position and the active position, respectively, or an optional position between the passive and the active position. . Hereby a time saving is obtained by displacing the pressure shoes between the passive position and the active position, pressed against the surface of the main shaft.

I en mere enkel udførelsesform af hovedaksel-fiksturet, ifølge opfindelsen, kan trykdornene udgøres af gevindskårne bolte hvis imod hovedakslen vendende frie ender er forsynede med trykskø, hvilke gevindskårne bolte samvirker med ge-vindskårne huller i relevante sektioner af fiksturet. Herved kan trykdornene med trykskøene ved manuel drejning af de gevindskårne bolte forskydes imellem den passive position og den aktive position.In a simpler embodiment of the main shaft fixture, according to the invention, the pressure mandrels can be made of threaded bolts if the free ends facing the main shaft are provided with pressure cams, which thread-cut bolts cooperate with threaded holes in relevant sections of the fixture. In this way, the pressure mandrels with the pressure queues can be displaced between the passive position and the active position by manually turning the threaded bolts.

I den hensigt at kunne fiksere rotoren på vindmøllers efter denne er bremset op, kan hovedaksei-fiksturet, ifølge opfindelsen omfatte en rotorlås, for fiksering af vindmøllens rotor, I en foretrukket udførelsesform af rotorlåsen udgøres denne af en flange, hvis boltcirkel geometri modsvarer en boltcirkei geometri på rotoren, hvilken flange i enderne er fastgjort til den første ende af to parallelt med høvedakslen og på hver side af denne forløbende, første bjælkeformede konsoller tilhørende hovedaksel fiksturet, hvilke konsollers anden ende er drejeligt lejrede med horisontalt orienterede boltforbindeiser, på andre konsoller tilhørende hovedaksei-fiksturet, der er forankrede til naceilens bundramme.In order to be able to fix the rotor on wind turbines after it has been decelerated, the main axis fixture, according to the invention, may comprise a rotor lock, for fixing the rotor of the wind turbine. geometry of the rotor, which flange at the ends is fixed to the first end of two parallel to the main shaft and on each side of this extending first beam-shaped bracket belonging to the main shaft fixture, the other end of which brackets are pivotally mounted with horizontally oriented bolted joints, on other brackets belonging to the main axle fixture anchored to the bottom frame of the naceil.

I den hensigt at kunne foretage udskiftning af akslens hovedleje, uden at være nødsaget til at afmontere hovedaksien, kan hovedaksei-fiksturet yderligere omfatte i det mindste en anden aktuatør, imellem naceilens bundramme og den imod denne tilvendende side af de første bjælkeformede konsoller og nærmest rotorlåsen, hvilken anden aktuator er forskydelig imellem en første passiv yderpøsition og en aktiv yderposition hvorved fiangeelementet forskydes vertikalt.In order to be able to replace the main bearing of the shaft without having to disassemble the main shaft, the main shaft attachment may further comprise at least one other actuator, between the bottom frame of the nace and the facing side of the first beam-shaped brackets and closest to the rotor lock. , which second actuator is displaceable between a first passive outer position and an active outer position whereby the captive element is displaced vertically.

Herved opnås det, at hovedakslen kan hæves fra sit leje hængende i roforlå-sen, således at akslens hovedleje kan udskiftes eller serviceres uden at akslen skal fjernes fra naceilen.Hereby it is obtained that the main shaft can be raised from its bearing hanging in the locking position so that the main bearing of the shaft can be replaced or serviced without the shaft having to be removed from the nace.

Opfindelsen forklares nærmere i det følgende med henvisning til tegningen, hvor; fig. 1 er et perspektivbillede af dele af en vindmølles nacelle, udvisende naceilens bundramme, vindmøllens hovedaksel, samt et hovedaksel-fikstur ifølge opfindelsen, med en letvægtskran og en selvophejsende kran monteret, fig. 2 er et mere detaljeret perspektivbillede fra en anden vinkel af det i fig. 1 viste, hvor hovedakslen er gjort transparent, udvisende trykdorne med tryksko, tilhørende hovedaksei-fiksturet ifølge opfindelsen, og fig. 3 er et mere detaljeret perspektivbillede fra en anden vinkel af det i fig. 1 viste, hvor hovedakslen er gjort transparent, udvisende aktuatorerne for hævning af hovedakslen.The invention is explained in more detail below with reference to the drawing, wherein; FIG. 1 is a perspective view of parts of a windmill's nacelle, showing the bottom frame of the windmill, the main shaft of the windmill, and a main shaft fixture according to the invention, with a lightweight crane and a self-lifting crane mounted; 2 is a more detailed perspective view from another angle of the one shown in FIG. 1, wherein the main shaft is made transparent, showing pressure mandrels with pressure shoes, belonging to the main axis fixture according to the invention, and fig. 3 is a more detailed perspective view from another angle of the one shown in FIG. 1, where the main shaft is made transparent, showing the actuators for raising the main shaft.

I fig. 1 ses en bundramme 2 i en nacelle (ikke vist) på en vindmølle (ikke vist), hvor vindmøllens hovedaksel 4, med gearkasse 6 og rotoren 8 er vist, og hvor hovedaksel-fiksturet 10 ifølge opfindelsen er vist i monteret tilstand, bærende henholdsvis en letvægtskran 12 og en selvophejsende kran 14, med et jord base ret spil (ikke vist). Bundrammen 2 er af hensyn til overskueligheden gjort transparent.In FIG. 1, a bottom frame 2 is seen in a nacelle (not shown) on a wind turbine (not shown), showing the main shaft 4 of the wind turbine, with gearbox 6 and rotor 8, and where the main shaft fixture 10 according to the invention is shown in mounted condition, respectively. a lightweight crane 12 and a self-raising crane 14, with a ground base straight play (not shown). The bottom frame 2 is made transparent for reasons of clarity.

Hovedaksel-fiksturet 10 er i den viste udførelsesform forankret på bundrammen 2 nær gearkassen 6 og nær rotoren 8, og omfatter en flerdelt ramme 14, der sammen med en derpå fastspændt tværdrager 16, omslutter et stykke af hovedakslen 4 imellem rotoren 8 og gearkassen 6. Den flerdelte ramme 14 er forankret på bundrammen 2.In the illustrated embodiment, the main shaft fixture 10 is anchored to the bottom frame 2 near the gearbox 6 and near the rotor 8, and comprises a multi-part frame 14 which, together with a transverse carrier 16 which is then clamped, encloses a piece of the main shaft 4 between the rotor 8 and the gearbox 6. The multi-part frame 14 is anchored to the bottom frame 2.

I fig. 2 ses det i fig. 1 viste, men som ende-billede, set fra rotorsiden af akslen 4, og hvor rotoren 8 af hensyn til overskueligheden er gjort transparent. Som det fremgår af fig. 2 omfatter den flerdelte ramme 14 og tværdrageren 16 i alt 4 omkring hovedakslen 2 symmetrisk placerede trykdorne 18, med tryksko 20, der er bragt i anlæg med hovedakslen 4, for fastholdelse af denne.In FIG. 2, it is seen in FIG. 1, but as an end view, seen from the rotor side of the shaft 4, where the rotor 8 is made transparent for the sake of clarity. As shown in FIG. 2, the multi-part frame 14 and the transverse carrier 16 comprise a total of 4 around the main shaft 2 symmetrically positioned pressure mandrels 18, with pressure shoes 20 brought into contact with the main shaft 4, for holding it.

Trykdornene 18, kan udgøres af hydraulisk drevne stempler hvis frie ender omfatter trykskoene 20.The pressure mandrels 18 can be made of hydraulically driven pistons whose free ends comprise the pressure shoes 20.

Som det fremgår af fig. 3, omfatter hovedaksel-fiksturet 10, to parallelt forløbende første dragere 22 på hver side af hovedakslen 4, i hvis første ender, nærmest rotoren 8, er fastgjort rotorlås i form af et flangeelement 24, hvis hulcirkel 26 geometri er ligedannet med hulcirkel 28 geometrien på rotoren 8 over en del af rotorens periferi. Ved låsning af rotoren 8 bringes hullerne 7 i rotoren 8 og hullerne 9 i flangeelementet 24 til overlapning, hvorefter der indføres bolte gennem hullerne, der tilspændes med møtrikker, hvorefter rotoren 8 er fastholdt/låst af flangeelementet 24.As shown in FIG. 3, the main shaft fixture 10 comprises two parallel extending first supports 22 on each side of the main shaft 4, at the first end of which, close to the rotor 8, a rotor lock is fixed in the form of a flange element 24, whose hollow circle 26 geometry is similar to the hollow circle 28 geometry. on the rotor 8 over a portion of the periphery of the rotor. By locking the rotor 8, the holes 7 in the rotor 8 and the holes 9 in the flange element 24 are overlapped, after which bolts are inserted through the holes which are tightened with nuts, after which the rotor 8 is held / locked by the flange element 24.

Den anden ende af de parallelt forløbende første dragere 22 er nærmest gearkassen 6 drejeligt forankret på horisontalt orienterede lejebolte 30, på en konsol 32, der er fastgjort til bundrammen 2. De parallelt forløbende første dragere 22 er indbyrdes forbundne med andre tværdragere 34, på hvilke ses konsolfaciliteter 23 for en selv ophejsende kran 14 med et jordbaseret spil (ikke vist).The other end of the parallel-carrying first supports 22 is adjacent to the gearbox 6 pivotally mounted on horizontally oriented bearing bolts 30, on a bracket 32 attached to the base frame 2. The parallel-extending first supports 22 are interconnected with other transverse supports 34, on which see bracket facilities 23 for a self-raising crane 14 with a ground-based game (not shown).

Som det fremgår af fig. 3 og fig. 1, findes der imellem bundrammen 2 og de paralleltforløbende første dragere 22 en aktuator 36. Aktivering af aktuatoren 36 vil medføre en ændring af afstanden imellem bundrammen 2 og de første dragere 22, i hvilket flangeelementet 24 er ophængt, hvilket vil medføre at flangeelementet 24 og rotoren 8, og dermed hovedakslen 4 hæves, hvilket vil medføre, at det bliver muligt at udskifte hovedakslens leje 38, uden at være nødsaget til at hejse hovedakslen 4 ned på jorden, hvilket er meget besparende, såfremt hovedaksel lejet 38 skal repareres eller udskiftes.As shown in FIG. 3 and FIG. 1, there is an actuator 36 between the bottom frame 2 and the parallel-carrying first supports 22. Activation of the actuator 36 will change the distance between the bottom frame 2 and the first supports 22, in which the flange element 24 is suspended, which will cause the flange element 24 and the rotor 8, and thus the main shaft 4 is raised, which will make it possible to replace the main shaft bearing 38 without having to hoist the main shaft 4 down to the ground, which is very economical if the main shaft bearing 38 is to be repaired or replaced.

I fig. 1 ses endvidere hvorledes hovedaksel-fiksturet 10 omfatter monteringsfaciliteter 40 for letvægtskranen 12.In FIG. 1, it is further seen how the main shaft fixture 10 comprises mounting facilities 40 for the lightweight crane 12.

Opfinderen har erkendt, at hovedaksel-fiksturet 10 kan antage andre udformninger en den foran beskrevne og i figuren viste, men det ændrer ikke på det op-finderiske aspekt der består i at angive et hovedaksel-fikstur 10 af den angivne art, der omfatter justerbare trykdorne 18 med tryksko 20, der medfører at fiksturet 10 bliver anvendeligt uanset geometrien af hovedakslen 4 på en vindmølle, og således, at dette kan monteres uden at fiksere rotoren 8, og yderligere at kombinere hovedaksel-fiksturet med faciliteter (40) montering af henholdsvis en letvægtskran 12, og en selvophejsende kran 14, med et jordbaseret spil, samt en rotorlås 24 og sluttelig at indrette hovedaksel-fiksturet 10 med aktuatorer 36, således at hovedakslen 4 og hovedaksellejet 38 kan hæves tilstrækkeligt fra dettes leje i nacellen til, at lejet kan serviceres eller udskiftes.The inventor has recognized that the main shaft fixture 10 can take on other designs than the one described above and in the figure, but it does not change the inventive aspect which consists of specifying a main shaft fixture 10 of the specified type comprising adjustable pressure mandrel 18 with pressure shoe 20, which makes the fixture 10 usable regardless of the geometry of the main shaft 4 on a wind turbine, and so that it can be mounted without fixing the rotor 8, and further combining the main shaft fixture with facilities (40) respectively. a lightweight crane 12, and a self-raising crane 14, with a grounding spindle, and a rotor lock 24 and finally aligning the main shaft fixture 10 with actuators 36 so that the main shaft 4 and main shaft bearing 38 can be raised sufficiently from its bearing in the nacelle to accommodate the bearing. can be serviced or replaced.

Claims (8)

1. Hovedaksel-fikstur (10) ti! fiksering af en hovedakse! (4) på en vindmølle ved gennemførelse af montage- øg reparationsarbejder på tunge dele af en vindmølle, arrangeret i en nacelle på en vindmølle, hvilket fikstur (10) er opdelt i et antal sektioner for montering på stabile konstruktionsdele (2), der forefindes i en vindmølles nacelle, herunder nacellens bundramme (2), kendetegnet ved, at hovedaksel-fiksturet (10) omfatter i det mindste tre, i hovedsagen, omkring hovedakslens centerakse (11) symmetrisk placerede, radialt forskydelige trykdorne (18), hvis imod hovedakslen (4) vendende ender er forsynede med trykskø (20), og hvilke trykdorne (18) er forskydelige imeiiem en passiv, tilbagetrukket position hvor trykskøene (20) er konfigureret tii at være placeret i en afstand fra hovedakslens (4) overflade, og en aktiv fremskudt låsbar position hvor trykskoene (20) er konfigureret til at være i anlæg med hovedakslen (4),1. Main shaft fixture (10) ten! fixation of a major axis! (4) on a wind turbine by carrying out mounting-increasing repair work on heavy parts of a wind turbine arranged in a nacelle on a wind turbine, the fixture (10) being divided into a number of sections for mounting on stable structural members (2) provided in a windmill's nacelle, including the nacelle's bottom frame (2), characterized in that the main shaft fixture (10) comprises at least three, substantially about the central axis (11) of the main shaft, symmetrically positioned, radially displaceable mandrels (18) if opposed to the main shaft (4) facing ends are provided with pressure queues (20) and said pressure mandrels (18) are displaceable in a passive, retracted position where the pressure queues (20) are configured to be spaced from the surface of the main shaft (4) and a active advanced lockable position where the pressure shoes (20) are configured to abut the main shaft (4), 2. Hovedaksel-fikstur (10), ifølge krav 1, kendetegn et ved, at dette omfatter monteringsfaciliteter for en selvophejsende kran (14), hvis spil er placeret på jordoverfladen nær vindmøllens fod.The main shaft fixture (10), according to claim 1, characterized in that this comprises mounting facilities for a self-raising crane (14), whose winches are located on the ground surface near the wind turbine foot. 3. Hovedaksel-fikstur (10), ifølge krav 1 eller 2, kendetegnet ved, at dette omfatter monteringsfaciliteter (40) for en ietvægiskran (12).Main shaft fixture (10), according to claim 1 or 2, characterized in that it comprises mounting facilities (40) for a lightweight crane (12). 4. Hovedaksel-fikstur (10), ifølge et hvilket som helst af kravene 1-3, k ende t e g n e t ved, at trykdornene (18) er forsynede med aktuatorer tii forskydning og fastholdelse af trykskoene (20) i henholdsvis den passive position og den aktive position, alternativt en valgfri position imeiiem den passive og den aktive position.4. The main shaft fixture (10) according to any one of claims 1-3, characterized in that the pressure mandrels (18) are provided with actuators for displacing and holding the pressure shoes (20) in the passive position and the active position, alternatively an optional position imeiiem the passive and the active position. 5. Hovedaksel-fikstur (10), ifølge et hvilket som helst af kravene 1-3, k ende t e g n e t ved, at trykdornene (18) udgøres af gevindskårne bolte hvis imod hovedakslen vendende frie ender er forsynede med trykskø (20), hvilke gevindskårne bolte samvirker med gevindskårne huller i relevante sektioner af fiksfuret (10).The main shaft fixture (10) according to any one of claims 1-3, characterized in that the pressure mandrels (18) are made of threaded bolts if the free ends facing the main shaft are provided with pressure cams (20), which are threaded bolts interact with threaded holes in relevant sections of the fixing groove (10). 6. Hovedaksel-fikstur (10), ifølge et hvilket som helst af kravene 1-5, k e n -detegnet ved, at dette omfatter en røtorlås (24), for fiksering af vindmøllene rotor (8).The main shaft fixture (10), according to any one of claims 1-5, characterized in that this comprises a rotor lock (24) for fixing the wind turbine rotor (8). 7. Hovedaksel-fikstur (10), ifølge et hvilket som helst af kravene 1-6, k ende t e g n e t ved, at rotoriåsen (24) udgøres af et flangeeiement, hvis bolt-cirkel geometri (26) modsvarer en boitcirkel geometri (28) på rotoren, hvilket flangeelement (24) i enderne er fastgjort til den første ende (21) af to parallelt med hovedakslen og på hver side af denne forløbende, første bjælkeformede konsoller (22) tilhørende hovedakse! fiksturet, hvilke konsollers (22) anden ende (23) er drejeligt lejrede med horisontalt orienterede boitforbindelser (30), på andre konsoller (39) tilhørende hovedaksel-fiksturet (10), der er forankrede på nacellens bundramme (2).Main shaft fixture (10), as claimed in any one of claims 1-6, characterized in that the rotor shaft (24) is a flange element whose bolt-circle geometry (26) corresponds to a boom circle geometry (28). on the rotor, the flange element (24) at the ends being secured to the first end (21) of two parallel to the main shaft and to each side of this extending first beam-shaped bracket (22) belonging to the main shaft! the fixture, the other end (23) of the brackets (22) is pivotally mounted with horizontally oriented boit connections (30), on other brackets (39) of the main shaft fixture (10) anchored to the bottom frame of the nacelle (2). 8. Hovedaksel-fikstur (10), ifølge krav 7, kendetegnet v e d , at der imellem nacellens bundramme (2) øg den imod denne tilvendende side (25) af de første bjælkeformede konsoller (22) og nærmest rotoriåsen (24), findes i det mindste en aktu ator (38), hvilken aktuator (38) er forskydelig imellem en første passiv yderposition øg en aktiv yderposition hvor flangeelementet (24) forskydes vertikalt.Main shaft fixture (10), according to claim 7, characterized in that between the bottom frame (2) of the nacelle it increases against this facing side (25) of the first beam-shaped brackets (22) and closest to the rotor axis (24). at least one actuator (38), which actuator (38) is displaceable between a first passive outer position and an active outer position where the flange element (24) is displaced vertically.
DKPA201400573A 2014-10-07 2014-10-07 Main shaft fixture for wind turbines. DK178466B1 (en)

Priority Applications (19)

Application Number Priority Date Filing Date Title
DKPA201400573A DK178466B1 (en) 2014-10-07 2014-10-07 Main shaft fixture for wind turbines.
DKPA201500527A DK201500527A1 (en) 2014-10-07 2015-09-04 Main shaft fixing trip for fixing the main shaft on a wind turbine when carrying out installation and repair work.
PCT/DK2015/000040 WO2016055065A1 (en) 2014-10-07 2015-10-06 Main shaft fixture
CN201580054642.2A CN106795866B (en) 2014-10-07 2015-10-06 Main shaft fixing device
MA040522A MA40522A (en) 2014-10-07 2015-10-06 Main shaft fixture
CA2963016A CA2963016C (en) 2014-10-07 2015-10-06 Main shaft fixture
MX2017004689A MX2017004689A (en) 2014-10-07 2015-10-06 Main shaft fixture.
EP15848694.4A EP3204639B1 (en) 2014-10-07 2015-10-06 Main shaft fixture
US15/517,288 US10378518B2 (en) 2014-10-07 2015-10-06 Main shaft fixture
ES15848694T ES2935584T3 (en) 2014-10-07 2015-10-06 main shaft accessory
BR122022023804-1A BR122022023804B1 (en) 2014-10-07 2015-10-06 MAIN AXLE ACCESSORY
BR112017007156-8A BR112017007156B1 (en) 2014-10-07 2015-10-06 MAIN SHAFT ACCESSORY
DK15848694.4T DK3204639T3 (en) 2014-10-07 2015-10-06 MAIN SHAFT RETAINER
JP2017518784A JP6648123B2 (en) 2014-10-07 2015-10-06 Spindle fixing device
EP22211827.5A EP4198301A1 (en) 2014-10-07 2015-10-06 Main shaft fixture
ZA2017/02109A ZA201702109B (en) 2014-10-07 2017-03-24 Main shaft fixture
PH12017500623A PH12017500623B1 (en) 2014-10-07 2017-04-05 Main shaft fixture
MX2023000217A MX2023000217A (en) 2014-10-07 2017-04-07 Main shaft fixture.
US16/452,617 US20190316569A1 (en) 2014-10-07 2019-06-26 Main shaft fixture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK201400573 2014-10-07
DKPA201400573A DK178466B1 (en) 2014-10-07 2014-10-07 Main shaft fixture for wind turbines.

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DK178466B1 true DK178466B1 (en) 2016-04-04
DK201400573A1 DK201400573A1 (en) 2016-04-04

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Publication number Priority date Publication date Assignee Title
CA3012945C (en) 2017-11-22 2019-05-21 LiftWerx Holdings Inc. Lift system mountable in a nacelle of a wind turbine

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EP1617075A1 (en) * 2004-07-13 2006-01-18 Eickhoff Machinenfabrik GmbH Method and apparatus for changing a gearbox of a wind turbine
DE102006013539A1 (en) * 2006-03-24 2007-09-27 Nordex Energy Gmbh Rotor shaft support for wind powered generator has support frame to hold the shaft for access to the bearing and gearbox
US20090261594A1 (en) * 2004-12-17 2009-10-22 Nordex Energy Gmbh Wind motor with a holding device for a rotor shaft
WO2014103018A1 (en) * 2012-12-28 2014-07-03 三菱重工業株式会社 Wind power generation device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1617075A1 (en) * 2004-07-13 2006-01-18 Eickhoff Machinenfabrik GmbH Method and apparatus for changing a gearbox of a wind turbine
US20090261594A1 (en) * 2004-12-17 2009-10-22 Nordex Energy Gmbh Wind motor with a holding device for a rotor shaft
DE102006013539A1 (en) * 2006-03-24 2007-09-27 Nordex Energy Gmbh Rotor shaft support for wind powered generator has support frame to hold the shaft for access to the bearing and gearbox
WO2014103018A1 (en) * 2012-12-28 2014-07-03 三菱重工業株式会社 Wind power generation device

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