SE439815B - DOUBLE BEARINGS, Separate for a re-adjustable propeller blade for a wind turbine - Google Patents

DOUBLE BEARINGS, Separate for a re-adjustable propeller blade for a wind turbine

Info

Publication number
SE439815B
SE439815B SE8001094A SE8001094A SE439815B SE 439815 B SE439815 B SE 439815B SE 8001094 A SE8001094 A SE 8001094A SE 8001094 A SE8001094 A SE 8001094A SE 439815 B SE439815 B SE 439815B
Authority
SE
Sweden
Prior art keywords
bearing
ring
bearings
rotatable element
wind turbine
Prior art date
Application number
SE8001094A
Other languages
Swedish (sv)
Other versions
SE8001094L (en
Inventor
U Stampa
Original Assignee
Erno Raumfahrttechnik Gmbh
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.)
Filing date
Publication date
Application filed by Erno Raumfahrttechnik Gmbh filed Critical Erno Raumfahrttechnik Gmbh
Publication of SE8001094L publication Critical patent/SE8001094L/en
Publication of SE439815B publication Critical patent/SE439815B/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54Systems consisting of a plurality of bearings with rolling friction
    • F16C19/55Systems consisting of a plurality of bearings with rolling friction with intermediate floating or independently-driven rings rotating at reduced speed or with other differential ball or roller bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wind Motors (AREA)
  • Rolling Contact Bearings (AREA)

Description

^80Q1094f5 10 15 20' ZS 30 ru ett dubbellager undvikes överbelastning av lagerytorna samt förbättras lagersmörjningen. Ett dubbellager enligt uppfin- ningen kan dessutom utsättas för böjpåkänníng och erfordrar i radiell riktning ej större utrymme än ett dellager. ^ 80Q1094f5 10 15 20 ' ZS 30 ru a double layer avoids overloading of the bearing surfaces as well the bearing lubrication is improved. A double layer according to the invention can also be subjected to bending stress and requires in the radial direction no more space than a partial bearing.

Bifogad ritning visar ett utföríngsexcmpel och ett före- draget användningsexempel av ett dubbellager enligt uppfin- ningen, varvid fig. 1 visar dubbellagret med två axiellt bred- vid varandra liggande rullningslager och fig. 2 lagringen av omställbara propellerblad vid ett vindkraftverk. I lig. 1 upp- bär en vridfast del 21 medelst bultar 23 en lagerring 22.The accompanying drawing shows an embodiment and an embodiment drawn use example of a double bearing according to the invention Fig. 1 shows the double bearing with two axially wide adjacent rolling bearings and Fig. 2 the bearing of adjustable propeller blades at a wind turbine. I lig. 1 upp- a torsionally fixed part 21 carries by means of bolts 23 a bearing ring 22.

Lagerringen 22 bildar tillsammans med rullningskroppur 28 och en flytande lagrad lagerbussning 27 dubbellagrets ena del- lager. Dubbellagrets andra dellager bildas av en lagerbussning 27, rullningskroppar 29 och en lageryta hos en lagerring 25, vilken medelst bultar 26 är förbunden med ett vridrörligt element 24. De båda dellagren är alltså enligt uppfinningen anordnade axiellt bredvid varandra, varvid lagerbussningen 27, vilken omsluter lagerringarnas 22 och 25 lagerytor, uppvisar två löpytor bredvid varandra vid dess insida. Vid lagerbuss- ningens 27 övre kant är anordnad en tandkrans 30, i vilken en vid den vrídbara delen 24 anbríngad spärrhake 31 kan ingripa.The bearing ring 22 together with the rolling body clock 28 and a floating bearing bearing bushing 27 one part of the double bearing stock. The second sublayer of the double bearing is formed by a bearing bushing 27, rolling bodies 29 and a bearing surface of a bearing ring 25, which by means of bolts 26 is connected to a rotary movable element 24. The two sublayers are thus according to the invention arranged axially next to each other, the bearing bushing 27, which encloses the bearing surfaces of the bearing rings 22 and 25, has two running surfaces next to each other at its inside. At the warehouse bus The upper edge of the ring 27 is provided with a ring gear 30, in which a locking hook 31 mounted on the rotatable part 24 can engage.

Genom användning av vardera en frihjulskoppling mellan å ena sidan mellanringen och å andra sidan det vrídfasta resp. det vridbara elementet tillses att, alltefter vridriktning, är vid varje tillfälle_endast ett av dubbellagrets dellager verksamt.By using each a freewheel clutch between one on the other hand the intermediate ring and on the other hand the torsionally fixed resp. the the rotatable element ensures that, depending on the direction of rotation, it is wide each occasion_only one of the double layer sub-layers operates.

Fig. 2 visar axeln 40 hos en vindkraftpropeller vid vilken är fäst ett propellernav 41. Vid navet 41 är vridbart lagrade två propellerblad 42 och 43. Såsom lager 44 resp. 45 användes därvid på fördelaktigt sätt dubbellager enligt fig. 1 så att propellerbladen 42 och 43 kan inställas dels för att uppnå en vid rådande vindhastíghet maximal verkningsgrad, dels för att sätta igång och stoppa vindkraftverket. ' få' ; än gšrqflsflï n. n :7 IFig. 2 shows the shaft 40 of a wind power propeller at which is attached a propeller hub 41. At the hub 41 are rotatably mounted two propeller blades 42 and 43. As bearings 44 resp. 45 was used thereby advantageously double layer according to Fig. 1 so that propeller blades 42 and 43 can be adjusted partly to achieve one at the prevailing wind speed maximum efficiency, partly to start and stop the wind turbine. 'get' ; än gšrq fl s fl ï n. n: 7 IN

Claims (1)

8001094-5 gatentkrav Üubbellager för lagring av ett vridbart element vid ett vridfast element, särskilt ett omställbart propellerblad hos ett vindkraftverk vid ett propellernav, under mellanlagríng av en separat lagerring, vilken bildar en lageryta för vart och ett av de båda såsom rullningslager utbildade dellagren, var- vid lagerríngen via en frihjulskopplíng är inkopplingsbar med det vridbara elementet, k ä n n e t e c k n a t av att de båda dellagren (28, 29) är utförda såsom nxiellt bredvid varandra anordnade radiallager, varvid mellanríngen (271 är utbildad såsom en lagerbussning, vilken omsluter såväl det vid det vridbara elementet (24) som det vid det vridfastu elementet (21) befintliga dellagret och att fríhjulskopplíngen består av åtminstone en vid det vridbara elementet anordnad spärrhake (31) och en vid mellanringen unbringad tandkrans (30) . iåoon QtxrttfnvA bearing for storing a rotatable element at a rotationally fixed element, in particular an adjustable propeller blade of a wind turbine at a propeller hub, during intermediate storage of a separate bearing ring, which forms a bearing surface for each of the two sub-bearings formed as roller bearings. wherein the bearing ring can be connected to the rotatable element via a freewheel coupling, characterized in that the two sub-bearings (28, 29) are designed as radially adjacent radial bearings, the intermediate ring (271 being formed as a bearing bush, which encloses both the at the rotatable element (24) as the partial bearing present at the rotatable element (21) and that the freewheel clutch consists of at least one ratchet (31) arranged at the rotatable element and a toothed ring (30) mounted at the intermediate ring.aåoon Qtxrttfnv
SE8001094A 1979-07-04 1980-02-12 DOUBLE BEARINGS, Separate for a re-adjustable propeller blade for a wind turbine SE439815B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792927033 DE2927033A1 (en) 1979-07-04 1979-07-04 Adjustable propeller blade hub double bearing - has freewheel between intermediate bush and rotary component

Publications (2)

Publication Number Publication Date
SE8001094L SE8001094L (en) 1981-01-05
SE439815B true SE439815B (en) 1985-07-01

Family

ID=6074909

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8001094A SE439815B (en) 1979-07-04 1980-02-12 DOUBLE BEARINGS, Separate for a re-adjustable propeller blade for a wind turbine

Country Status (2)

Country Link
DE (1) DE2927033A1 (en)
SE (1) SE439815B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10032590A1 (en) 2000-07-07 2002-01-17 Skf Gmbh Lockable storage unit
DE102014003471A1 (en) * 2014-03-05 2015-09-10 Heidelberger Druckmaschinen Ag Rolling bearings with double freewheel
ES2723800A1 (en) * 2018-02-23 2019-09-02 Laulagun Bearings S L Bearing with rotary raceway and bearing maintenance method with rotary raceway (Machine-translation by Google Translate, not legally binding)

Also Published As

Publication number Publication date
DE2927033A1 (en) 1981-01-08
SE8001094L (en) 1981-01-05

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