WO2009048402A1 - Actionneur à paliers - Google Patents

Actionneur à paliers Download PDF

Info

Publication number
WO2009048402A1
WO2009048402A1 PCT/SE2008/000596 SE2008000596W WO2009048402A1 WO 2009048402 A1 WO2009048402 A1 WO 2009048402A1 SE 2008000596 W SE2008000596 W SE 2008000596W WO 2009048402 A1 WO2009048402 A1 WO 2009048402A1
Authority
WO
WIPO (PCT)
Prior art keywords
ring
bearing
gear teeth
actuator
roller bearing
Prior art date
Application number
PCT/SE2008/000596
Other languages
English (en)
Inventor
Rickard Jonsson
Mitak Alisson
Original Assignee
Aktiebolaget Skf
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 Aktiebolaget Skf filed Critical Aktiebolaget Skf
Publication of WO2009048402A1 publication Critical patent/WO2009048402A1/fr

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
    • F03D80/70—Bearing or lubricating arrangements
    • 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
    • F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05B2260/79—Bearing, support or actuation arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/31—Wind motors
    • 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 concerns a bearing actuator.
  • An object of the invention is to provide a bearing actuator that withstands heavy loads, is compact, and has long service life.
  • a bearing actuator comprising a first bearing having a first ring fixable to a first mechanical element, a second ring fixable to a second mechanical element, and rolling elements located therebetween.
  • a second bearing is having a third ring and a fourth ring, and rolling elements located therebetween.
  • a third bearing is having a fifth ring and a sixth ring, and rolling elements located therebetween.
  • the third ring is being fixed in relation to the first ring via a first fixing means, and there is an eccenter between the second bearing and the third bearing.
  • the sixth ring is being provided with two axially adjacent sections, a first and a second section, of gear teeth along its periphery.
  • the first ring is being fixed in relation to a seventh ring via a second fixing means, wherein the seventh ring is provided with gear teeth that is interacting with the gear teeth of the sixth ring.
  • the second ring is being fixed in relation to an eighth ring via a third fixing means, wherein the eighth ring is provided with gear teeth that is interacting with the gear teeth of the sixth ring.
  • a stator and rotor arrangement is acting between the third ring and the fourth ring.
  • the stator and rotor arrangement is being responsible for accomplishing a relative movement such that the rotor drives the fourth ring, which leads to an eccentric movement of the sixth ring. This further leads to an interaction between the gear teeth on the sixth ring and the gear teeth on the seventh ring and the gear teeth on the eighth ring.
  • the reduction ratio between the gear teeth on the sixth and seventh respectively sixth and eighth ring is not equal. This leads further to a relative movement between the first ring and the second ring.
  • the eccentric movement of the sixth ring causes the first and second section of the gear teeth to roll off upon the gear teeth of the seventh and eighth ring, and the resulting relative rotational movement between the seventh and the eighth ring are different.
  • At least one gear tooth of each of the first and second section interacts with the gear teeth of the seventh and eighth ring.
  • the roll off movement results in that the gear teeth interacts in multi-turns, instead of only back and forth within a specific interval as for e.g. a pinion gear.
  • the bearing actuator according to the present invention will be subjected to less wear and improved lubrication.
  • a first section of the sixth ring is having N-n gear teeth and a second section is having M-m gear teeth, while the seventh ring is being provided with M gear teeth, and the eighth ring is being provided with N gear teeth.
  • a first section of the sixth ring is having N gear teeth and a second section is having M gear teeth, while the seventh ring is being provided with M-m gear teeth, and the eighth ring is being provided with N-n gear teeth.
  • the first ring is non-rotatable and the second ring is rotatable .
  • the first ring may be fixed to a rigid mechanical element.
  • the rigid mechanical element may e.g. be a wall, a frame, a chassis, a framework.
  • the first ring is rotatable and the second ring is non-rotatable.
  • both of the first ring and the second ring are rotatable.
  • the stator winding may be on the third ring, and the rotor on the fourth ring. In an embodiment, the stator winding may be on the fourth ring, and the rotor on the third ring.
  • the rotor may drive, e.g. via a second gear, via a connection, e.g. an arm or a plate, that will act upon the fourth ring in order to accommodate a movement .
  • a motor may be driving the third or the fourth ring.
  • the motor may be an electric motor.
  • n, m, N and M may not be trivial.
  • the second fixing means may for instance be a stiffening plate, arms, a ring, or a plurality of segments of a ring.
  • the third fixing means may for instance be a stiffening plate, arms, a ring, or a plurality of segments of a ring.
  • the bearing actuator further comprises a supporting member fixed to at least one of the first ring, the third ring or the seventh ring. This further improves the rigidity and stiffness of the bearing actuator.
  • the bearing actuator further comprises a supporting member fixed to at least one of the second ring or the eighth ring. This further improves the rigidity and stiffness of the bearing actuator.
  • the supporting member may for instance be a stiffening plate, arms, a ring, or a plurality of segments of a ring.
  • the supporting member is the first and third fixing means.
  • the supporting member is the second fixing means.
  • the bearing actuator may be even more compact with maintained high stiffness .
  • the rotor winding is integrated in the fourth or the fifth ring.
  • the two axially adjacent sections of gear teeth may be mounted onto the sixth ring.
  • the two axially adjacent sections of gear teeth may be forged on the sixth ring.
  • the second or the third bearing is one of a deep groove ball bearing, an angular contact rolling bearing, a self-aligning ball bearing, a cylindrical roller bearing, a spherical roller bearing, a needle roller bearing, a toroidal roller bearing, a slewing bearing, or a taper roller bearing.
  • the first bearing is one of a slewing bearing, a deep groove ball bearing, an angular contact rolling bearing, a self-aligning ball bearing, a cylindrical roller bearing, a spherical roller bearing, a needle roller bearing, a toroidal roller bearing, or a taper roller bearing.
  • the slewing bearing is one of a cross-roller bearing, a four-point contact bearing, a single-row ball bearing, a double-row ball bearing, single-row roller bearing, a double-row roller bearing, a three-row roller bearing, a wire race bearing, or a ball and roller bearing.
  • Figure 1 A schematic view of a bearing actuator according to an embodiment of the invention.
  • Figure 2 A schematic view of a bearing actuator according to an embodiment of the invention.
  • Figure 3 A schematic view of a bearing actuator according to an embodiment of the invention.
  • Figure 4 A schematic view of two interacting gear rings according to an embodiment of the invention
  • the bearing actuator 1 comprises a first bearing 2 that has a first ring 4 fixable to a first mechanical element 3, a second ring 6 fixable to a second mechanical element 5, and rolling elements 7 located therebetween.
  • a second bearing 8 has a third ring 10 and a fourth ring 12, and rolling elements 9 located therebetween.
  • a third bearing 14 has a fifth ring 16 and a sixth ring 18, and rolling elements 11 located therebetween.
  • the third ring 10 is fixed in relation to the first ring 4 via a first fixing means 20, which in this embodiment is a stiffening plate, and an eccenter 22 is located between the second bearing 8 and the third bearing 14.
  • the sixth ring 18 is provided with two axially adjacent sections of gear teeth along its periphery, wherein a first section is having N-n gear teeth 24, and a second section is having M-m gear teeth 26.
  • the first ring 4 is fixed in relation to a seventh ring 28 via a second fixing means 29, which in this embodiment is the same as the first fixing means 20.
  • the seventh ring 28 is provided with M gear teeth 30 that interact with the M-m gear teeth 26 of the sixth ring 18.
  • the second ring 6 is fixed in relation to an eighth ring 32 via a third fixing means 34, which in this embodiment is a stiffening plate.
  • the eighth ring 32 is provided with N gear teeth 36 that interact with the N-n gear teeth 24 of the sixth ring 18.
  • a stator and rotor arrangement 38 acts between the third ring 10 and the fourth ring 12.
  • the stator and rotor arrangement 38 is responsible for accomplishing a relative movement such that the rotor 40 drives the fourth ring 12.
  • the eccentric movement of the sixth ring 18 causes the first and second section of the gear teeth 24, 26 to roll off upon the gear teeth 30, 36 of the seventh 28 and eighth ring 32, and the resulting relative rotational movement between the seventh 28 and the eighth ring 32 are different.
  • At least one gear tooth of each of the first and second section of gear teeth 24, 26 interacts with the gear teeth 30, 36 of the seventh 28 and eighth ring 32. This leads to a relative movement between the first ring 4 and the second ring 6.
  • FIG 2 a schematic view of a bearing actuator according to an embodiment of the invention is shown. It comprises the same features and components as the bearing actuator 1 shown in figure 1. However, in this embodiment, the third bearing 14 is axially displaced somewhat from the second bearing 8, and the rotor 40 is integrated in the fifth ring 16.
  • FIG 3 a schematic view of a bearing actuator according to an embodiment of the invention is shown. It comprises the same features and components as the bearing actuator 1 shown in figure 1.
  • the first section of the sixth ring is having N gear teeth 24 and the second section is having M gear teeth 26, while the seventh ring 28 is being provided with M-m gear teeth 30, and the eighth ring 32 is being provided with N-n gear teeth 36.
  • the seventh ring 28 and the eighth ring 32 are located closer to the centre, in a radial direction, rather than to the peripheral of the first bearing 2.
  • FIG 4 a schematic view of two interacting gear rings according to an embodiment of the invention is shown.
  • the principle of an interaction between the second section of gear teeth 26 of the sixth ring 18 and the gear teeth 30 of the seventh ring 28 is illustrated.
  • the eccentric movement of the sixth ring 18 causes the gear teeth 26 to roll off upon the gear teeth 30 of the seventh ring 28 and wherein a relative rotational movement between the seventh and the eighth ring is generated.
  • At least one gear tooth of the first section 24 interacts with the gear teeth 30 of the seventh ring 28.
  • the same principle also applies to the interaction between the first section of gear teeth 24 of the sixth ring 18 and the gear teeth 36 of the eighth ring 32.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Retarders (AREA)

Abstract

La présente invention concerne un actionneur à paliers (1) comprenant un premier palier (2) ayant une première bague (4) qui peut être fixée à un premier élément mécanique (3), une deuxième bague (6) qui peut être fixée à un second élément mécanique (5), et des éléments de roulement (7). Un deuxième palier (8) a une troisième bague (10), une quatrième bague (12) et des éléments de roulement (9) et un troisième palier (14) a une cinquième bague (16), une sixième bague (18) et des éléments de roulement (11). Un excentreur (22) est disposé entre le deuxième palier (8) et le troisième palier (14). La sixième bague (18) est pourvue de deux sections axialement adjacentes de denture d'engrenage (24, 26) le long de sa périphérie; la septième bague (28) est pourvue d'une denture d'engrenage (30) en interaction avec la denture (26) de la sixième bague (18). La huitième bague (32) est pourvue d'une denture d'engrenage (36) en interaction avec la denture d'engrenage (24) de la sixième bague (18). Un agencement de stator et de rotor (38) agit entre la troisième bague (10) et la quatrième bague (12) de telle sorte que le rotor (40) entraîne la quatrième bague (12), afin de susciter un mouvement excentrique de la sixième bague (18), ainsi qu'un mouvement relatif entre la première bague (4) et la deuxième bague (6).
PCT/SE2008/000596 2007-10-11 2008-10-13 Actionneur à paliers WO2009048402A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE0702295 2007-10-11
SE0702295-7 2007-10-11
SE0800452-5 2008-02-26
SE0800452 2008-02-26

Publications (1)

Publication Number Publication Date
WO2009048402A1 true WO2009048402A1 (fr) 2009-04-16

Family

ID=40549397

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2008/000596 WO2009048402A1 (fr) 2007-10-11 2008-10-13 Actionneur à paliers

Country Status (1)

Country Link
WO (1) WO2009048402A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011128291A3 (fr) * 2010-04-12 2012-03-22 Wobben, Aloys Commande d'azimut ou commande de pas variable pour éolienne
WO2012069062A1 (fr) * 2010-11-26 2012-05-31 Vestas Wind Systems A/S Système d'inclinaison pour une turbine éolienne
US8482435B2 (en) 2006-02-16 2013-07-09 Aloys Wobben Wind turbine comprising approach lighting
US10655610B2 (en) 2017-04-28 2020-05-19 General Electric Company Wire races for wind turbine bearings

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005005866A1 (fr) * 2003-07-02 2005-01-20 The Timken Company Transmission contenant des roues helicoidales et configuration de palier associee
EP1553315A1 (fr) * 2004-01-07 2005-07-13 Ntn Corporation Roulement à rouleaux cylindriques et engrenage associé
WO2005110031A2 (fr) * 2004-05-07 2005-11-24 The Timken Company Module de commande de palier
WO2007098759A2 (fr) * 2006-02-28 2007-09-07 Vestas Wind Systems A/S Rotor d'éolienne, mécanisme de commande de rotation et procédé de commande d'au moins une pale d'un rotor d'éolienne

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005005866A1 (fr) * 2003-07-02 2005-01-20 The Timken Company Transmission contenant des roues helicoidales et configuration de palier associee
EP1553315A1 (fr) * 2004-01-07 2005-07-13 Ntn Corporation Roulement à rouleaux cylindriques et engrenage associé
WO2005110031A2 (fr) * 2004-05-07 2005-11-24 The Timken Company Module de commande de palier
WO2007098759A2 (fr) * 2006-02-28 2007-09-07 Vestas Wind Systems A/S Rotor d'éolienne, mécanisme de commande de rotation et procédé de commande d'au moins une pale d'un rotor d'éolienne

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8482435B2 (en) 2006-02-16 2013-07-09 Aloys Wobben Wind turbine comprising approach lighting
WO2011128291A3 (fr) * 2010-04-12 2012-03-22 Wobben, Aloys Commande d'azimut ou commande de pas variable pour éolienne
CN102884315A (zh) * 2010-04-12 2013-01-16 乌本普罗帕蒂斯有限公司 风能设备方位或变桨驱动装置
WO2012069062A1 (fr) * 2010-11-26 2012-05-31 Vestas Wind Systems A/S Système d'inclinaison pour une turbine éolienne
CN103221685A (zh) * 2010-11-26 2013-07-24 维斯塔斯风力系统有限公司 用于风轮机的变桨系统
US9631605B2 (en) 2010-11-26 2017-04-25 Vestas Wind Systems A/S Pitch system for a wind turbine
US10655610B2 (en) 2017-04-28 2020-05-19 General Electric Company Wire races for wind turbine bearings

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