DE102011010830A1 - Pneumatic brake azimuth for wind turbines, has multiple planar pneumatic actuators that are positioned on lower side of machine frame, braking pads act on upper side of stationary bearing ring - Google Patents
Pneumatic brake azimuth for wind turbines, has multiple planar pneumatic actuators that are positioned on lower side of machine frame, braking pads act on upper side of stationary bearing ring Download PDFInfo
- Publication number
- DE102011010830A1 DE102011010830A1 DE102011010830A DE102011010830A DE102011010830A1 DE 102011010830 A1 DE102011010830 A1 DE 102011010830A1 DE 102011010830 A DE102011010830 A DE 102011010830A DE 102011010830 A DE102011010830 A DE 102011010830A DE 102011010830 A1 DE102011010830 A1 DE 102011010830A1
- Authority
- DE
- Germany
- Prior art keywords
- pneumatic
- brake
- wind turbines
- azimuth
- pneumatic actuators
- 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.)
- Ceased
Links
- 239000012528 membrane Substances 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Images
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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0204—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
-
- 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
-
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
-
- 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
- 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
- F05B2260/90—Braking
- F05B2260/902—Braking using frictional mechanical forces
-
- 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
- F05B2270/00—Control
- F05B2270/60—Control system actuates through
- F05B2270/605—Control system actuates through pneumatic actuators
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D2055/0075—Constructional features of axially engaged brakes
- F16D2055/0091—Plural actuators arranged side by side on the same side of the rotor
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
-
- 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
Abstract
Description
Windkraftanlagen besitzen Bremsen für die Azimutlagerung (auch Turmkopflager oder Nachführlager genannt), die ein unkontrolliertes Verdrehen der Gondel durch Windkräfte verhindern soll. Es handelt sich dabei mehr um eine Feststellbremse. Diese Bremse wird dann beim planmäßigen Nachführen der Gondel ganz oder teilweise gelöst. Meist sind solche Bremsen als Hydraulikbremsen ausgeführt. Die nötigen Bremskräfte sind enorm und betragen bei Anlagen der Megawatt-Klasse durchaus einige 1000 kN. Der Nachteil der Hydraulikbremsen besteht in häufigen Leckagen, die meist ein Wechseln der Bremsbeläge und ein aufwendiges Reinigen der Bremsscheibe zur Folge haben, sowie in den hohen Kosten und dem hohen Wartungsaufwand. Der Vorteil der Hydraulik besteht durch die hohen möglichen Drücke.Wind turbines have brakes for the azimuth bearing (also called tower head bearings or tracking bearings), which should prevent uncontrolled twisting of the nacelle by wind forces. It is more about a parking brake. This brake is then completely or partially solved during the scheduled tracking of the nacelle. Most such brakes are designed as hydraulic brakes. The necessary braking forces are enormous and are quite a few 1000 kN for systems of the megawatt class. The disadvantage of the hydraulic brakes is frequent leaks, which usually have a change of the brake pads and a complex cleaning of the brake disc result, and in the high cost and high maintenance. The advantage of the hydraulics is the high possible pressures.
Aufgabenstellung und Vorteil der Erfindung:Task and Advantage of the invention:
Der Erfindung liegt die Aufgabestellung zugrunde ein kostengünstiges ölfreies Bremssystem für den Azimutbereich zu entwickeln.The invention is based on the object of developing a cost-effective oil-free brake system for the azimuth range.
Die Aufgabe wurde durch die Merkmale des Anspruches 1 gelöst. In den abhängigen Ansprüchen sind vorteilhafte und zweckmäßige Weiterbildungen der Erfindung angegeben.The object has been solved by the features of
Die Erfindung geht von einer flächigen Anschlusssituation seitens des Maschinenrahmens (
Um die bei aktivierter Bremse auftretenden Kräfte in tangentialer Richtung abzufangen ist es vorteilhaft die Druckplatten (
Vorteilhaft ist es den pneumatischen Aktuator (
Eine weitere Ausbildung der Integration kann das Anpressen der Membran (
Vorteilhaft ist bei mehreren pneumatischen Aktuatoren (
Durch Nutzung eines Proportionalventils (
Vorteilhaft ist der Aufbau eines Regelkreises zur Bremskraftregelung. Hierzu können die Ströme der Nachführmotoren (
Die Erfindung wird nachstehend in den Zeichnungen näher erläutert. Es zeigen:The invention will be explained in more detail in the drawings. Show it:
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- WindkraftanlageWind turbine
- 22
- Maschinenrahmenmachine frame
- 33
- Pneumatischer AktuatorPneumatic actuator
- 44
- Druckplatteprinting plate
- 55
- Membranmembrane
- 66
- Bremsbelagbrake lining
- 77
- Feststehender LagerringFixed bearing ring
- 88th
- NachführmotorNachführmotor
- 99
- a) Azimutlager als Wälzlager b) Azimutlager als Gleitlagera) Azimutlager as rolling bearings b) Azimutlager as plain bearings
- 1010
- FormschlusselementForm-fitting element
- 1111
- umlaufendes Profilcircumferential profile
- 1212
- Federelementspring element
- 1313
- Proportionalventilproportional valve
- 1414
- TurmkopfflanschTurmkopfflansch
- 1515
- Steuerungssystemcontrol system
- 1616
- Nutgroove
- 1717
- Ventilinselvalve terminal
- 1818
- Gondelgondola
- 1919
- DruckluftanschlussCompressed air connection
- 2020
- Verdichtercompressor
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011010830A DE102011010830A1 (en) | 2011-02-04 | 2011-02-04 | Pneumatic brake azimuth for wind turbines, has multiple planar pneumatic actuators that are positioned on lower side of machine frame, braking pads act on upper side of stationary bearing ring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011010830A DE102011010830A1 (en) | 2011-02-04 | 2011-02-04 | Pneumatic brake azimuth for wind turbines, has multiple planar pneumatic actuators that are positioned on lower side of machine frame, braking pads act on upper side of stationary bearing ring |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102011010830A1 true DE102011010830A1 (en) | 2012-08-09 |
Family
ID=46547081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102011010830A Ceased DE102011010830A1 (en) | 2011-02-04 | 2011-02-04 | Pneumatic brake azimuth for wind turbines, has multiple planar pneumatic actuators that are positioned on lower side of machine frame, braking pads act on upper side of stationary bearing ring |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102011010830A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103791001A (en) * | 2014-01-27 | 2014-05-14 | 中国科学院长春光学精密机械与物理研究所 | Mechanical brake for azimuth axis system |
EP3597903A1 (en) * | 2018-07-20 | 2020-01-22 | General Electric Renovables España S.L. | Yaw system for a wind turbine |
EP3872337A1 (en) * | 2020-02-25 | 2021-09-01 | General Electric Company | A yaw braking assembly of a wind turbine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19629168C1 (en) * | 1996-07-19 | 1997-10-30 | Voith Turbo Kg | Wind turbine with tower, gondola, and brake |
DE102004051054A1 (en) * | 2004-10-19 | 2006-04-20 | Repower Systems Ag | Device for wind power plant for orientation of at least one movably installed component has at least one brake unit to maintain set orientation of component, and at least one sensor to monitor brake unit and detect error function |
DE102009009017A1 (en) * | 2009-02-16 | 2010-08-19 | Suzlon Energy Gmbh | Braking system for a wind turbine |
-
2011
- 2011-02-04 DE DE102011010830A patent/DE102011010830A1/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19629168C1 (en) * | 1996-07-19 | 1997-10-30 | Voith Turbo Kg | Wind turbine with tower, gondola, and brake |
DE102004051054A1 (en) * | 2004-10-19 | 2006-04-20 | Repower Systems Ag | Device for wind power plant for orientation of at least one movably installed component has at least one brake unit to maintain set orientation of component, and at least one sensor to monitor brake unit and detect error function |
DE102009009017A1 (en) * | 2009-02-16 | 2010-08-19 | Suzlon Energy Gmbh | Braking system for a wind turbine |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103791001A (en) * | 2014-01-27 | 2014-05-14 | 中国科学院长春光学精密机械与物理研究所 | Mechanical brake for azimuth axis system |
CN103791001B (en) * | 2014-01-27 | 2016-03-02 | 中国科学院长春光学精密机械与物理研究所 | Azimuth axle mechanical brake |
EP3597903A1 (en) * | 2018-07-20 | 2020-01-22 | General Electric Renovables España S.L. | Yaw system for a wind turbine |
US11092140B2 (en) | 2018-07-20 | 2021-08-17 | General Electric Renovables España, S.L. | Yaw system for a wind turbine |
EP3872337A1 (en) * | 2020-02-25 | 2021-09-01 | General Electric Company | A yaw braking assembly of a wind turbine |
US11592003B2 (en) | 2020-02-25 | 2023-02-28 | General Electric Company | Yaw braking assembly of a wind turbine |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |
Effective date: 20121128 |