NO324961B1 - Skjotforbindelse for hulprofiler - Google Patents
Skjotforbindelse for hulprofiler Download PDFInfo
- Publication number
- NO324961B1 NO324961B1 NO20023018A NO20023018A NO324961B1 NO 324961 B1 NO324961 B1 NO 324961B1 NO 20023018 A NO20023018 A NO 20023018A NO 20023018 A NO20023018 A NO 20023018A NO 324961 B1 NO324961 B1 NO 324961B1
- Authority
- NO
- Norway
- Prior art keywords
- joint
- tabs
- parts
- bolts
- profile
- Prior art date
Links
- 238000009434 installation Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000036316 preload Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Classifications
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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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
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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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/0608—Rotors characterised by their aerodynamic shape
- F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
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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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
-
- 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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
- F03D1/066—Connection means therefor, e.g. bushings or adapters
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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
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
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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
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/0004—Joining sheets, plates or panels in abutting relationship
- F16B5/0008—Joining sheets, plates or panels in abutting relationship by moving the sheets, plates or panels substantially in their own plane, perpendicular to the abutting edge
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
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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
- F05B2230/00—Manufacture
- F05B2230/60—Assembly methods
- F05B2230/604—Assembly methods using positioning or alignment devices for aligning or centering, e.g. pins
-
- 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
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/21—Rotors for wind turbines
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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
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/21—Rotors for wind turbines
- F05B2240/221—Rotors for wind turbines with horizontal axis
-
- 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
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
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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
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05B2240/302—Segmented or sectional blades
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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
- F05B2240/00—Components
- F05B2240/40—Use of a multiplicity of similar components
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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
- F05B2250/00—Geometry
- F05B2250/20—Geometry three-dimensional
- F05B2250/29—Geometry three-dimensional machined; miscellaneous
- F05B2250/292—Geometry three-dimensional machined; miscellaneous tapered
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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
- F05B2260/301—Retaining bolts or nuts
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- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
- F16B2/08—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using bands
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- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/63—Frangible connections
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- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/65—Miter joints
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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
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S403/00—Joints and connections
- Y10S403/15—Splice plates for co-linear members
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/49336—Blade making
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/49336—Blade making
- Y10T29/49337—Composite blade
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/49336—Blade making
- Y10T29/49339—Hollow blade
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/16—Joints and connections with adjunctive protector, broken parts retainer, repair, assembly or disassembly feature
- Y10T403/1616—Position or guide means
- Y10T403/1624—Related to joint component
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/50—Bridged by diverse connector
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/55—Member ends joined by inserted section
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/55—Member ends joined by inserted section
- Y10T403/551—Externally bridged
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/55—Member ends joined by inserted section
- Y10T403/553—Laterally inserted section
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/75—Joints and connections having a joining piece extending through aligned openings in plural members
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/76—Joints and connections having a cam, wedge, or tapered portion
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Wind Motors (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Laminated Bodies (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Saccharide Compounds (AREA)
- Hinges (AREA)
- Table Equipment (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Developing Agents For Electrophotography (AREA)
- Table Devices Or Equipment (AREA)
- Body Structure For Vehicles (AREA)
- Joining Of Building Structures In Genera (AREA)
Description
Oppfinnelsen angår anvendelse av en skjøtforbindelse av konstruksjonsdeler hvor det langs en skjøtfuge er anordnet lasker som overlapper skjøtfugen, og som med sine ender hver er festet direkte til en av konstruksjonsdelene som skal forbindes med liten lengdeavstand fra skjøtfugen.
På samme måte som flypropeller har rotorene på vindkraftanlegg rotorblader som består av en bærende bjelke - for det meste med overbeite og underbelte - og en hulprofil, som bestemmer rotorens aerodynamiske egenskaper. Hulprofilene består i dag vanligvis av komposittmaterialer, nemlig glass- eller kullfibere med polyester- eller epoxyresiner som bindemidler. Det har vært vanlig praksis å fremstille rotorbladhulprofilene (som har tverrsnitt som overveiende endrer seg over lengden) i form av to langsgående delte halvskall som settes sammen med bjelken til ferdig blad.
Med økende ytelser i moderne vindkraftanlegg får også deres rotorer større diameter, noe som krever fremstilling av tilsvarende lengre rotorblader. Dersom produksjonen av slike lange rotorblader, det vil si halvskallet som er nødvendig for dette ikke er uproblematisk i ett stykke (blant annet på grunn av den tilsvarende større fabrikkbygning) så er den deretter nødvendige transport til oppstillingsstedet for vindkraftanlegget en alvorlig hindring.
Fra DE 29 21 152 Al er det kjent et tverrdelt rotorblad hvor hulprofildelene er forbundet ved hjelp av skjøtforbindelsen nevnt i innledningen. Her er endene av profildelene sammenkoplet av strekkforankringer, mellom hvilke spennelementene er spent i form av stålkabler eller stållameller som i det indre av profildelene gjennomløper over bladlengden, eventuelt også gjennom ytterligere mellomforankringer. Denne anord-ning er så langt problematisk da dens spesifikke lengdeendring av spennelementene avhenger av temperatursvingninger og/eller sentrifugalkrefter som avhenger av utvidel-seskoeffisienter og elastisitetsmodul for materialer som anvendes, som resulterer i betydelige totale lengdeendringer på grunn av spennelementenes store lengde, som ikke kan oppfanges av forspenningen av spennelementene og som fører til løsning av skjøt-forbindelsen.
Videre er det fra US 3 310 327 Al kjent en skjøtforbindelse som nevnt i innledningen, som tjener til forbindelse av prefabrikkerte konstruksjonsdeler av bygninger og liknende. På endene av laskene er det festet bolter som over hele deres lengde griper inn i konstruksjonsdelenes helmateriale.
Ifølge oppfinnelsen blir skjøtforbindelsen kjent fra US 3 310 327 Al anvendt med det tiltak at konstruksjonsdelene er delte hulprofiler, særlig rotorblader på vindkraftanlegg, og laskene er anordnet langs delingsfugen på omkretsen av profildelene. Dermed løses en oppgave å utvikle en skjøtforbindelse som ikke har vesentlig innflytelse på rotorbladets aerodynamiske egenskaper, har liten vekt og fremfor alt er i stand til å motstå de betydelige veksellaster som rotorbladene blir utsatt for under drift av et vindkraftanlegg, uten fare for at det skjer en løsning. Laskene erstatter fullstendig den vanlig flensforbindelse i et stykke for forbindelse av hulprofiler eller også strekkfor-ankringsforbindelsen i et stykke kjent fra DE 29 21 152 Al; de er vesentlig lettere enn disse og kan anordnes fordelt over omkretsen av hulprofilen atskilt i forskjellige avstander fra hverandre, nemlig avhengighet av kreftene som skal overføres i delingsfugen, slik at beregningen av forbindelsen - ved meget god kraftinnføring - med hensyn til dens driftsfasthet er mulig på en enklere måte enn ved en av de kjente flens- eller strekkforankringsforbindelsene. Selv om denne forbindelsestype også kan anvendes for langsgående delte hulprofiler (rotorblader), egner de seg særlig for tverrdelte hulprofiler med urunde tverrsnitt, idet laskene er anordnet på omkretsen av rotorbladet.
En særlig fordel er det at den nye skjøtforbindelsen er vedlikeholdsfri, fordi den ikke er selvløsende og derfor er det ingen forspenningstap som det må tas hensyn til.
Hver laskforbindelse består fortrinnsvis av dobbellasker med en lask anordnet på utsiden og innsiden av hulprofilen. I tillegg er det fordelaktig sørget for at hver lask er forspennbar med en definert trekkraft. Med en tilstrekkelig stor trekkraftforspenning oppnås det at det til tross for veksellastpåkjenningen (trekkraft/trykkraft) under forløpet av en omdreining av rotoren forblir trekkraften i skjøtforbindelsen, og endrer seg kun i sin størrelse under omdreiningsforløpet. For å påføre trekkraftforspenningen som var nødvendig for dette på de enkelte lasker som sammen danner skjøtforbindelsen, er det fortrinnsvis sørget for at hver lask er festet til profildelene ved hjelp av to bolter, og minst én av boltene i det respektive kontaktområdet med lasken eller laskene har en kileformet avflating i dens akseretning, og holdes ikke-dreibar. Alternativt kan boltene også være dannet delkonisk, og da kan de også dreies. I alle tilfeller finner det ved befestigelsen av laskene sted samtidig oppbygging av en trekkraftforspenning i laskens lengderetning og således vinkelrett på delingsfugen når laskene med deres (tilsvarende utformede) ender skyves over boltene og trykkes i retning mot hulprofilens flate. For å utføre dette på enkel måte består bolten fordelaktig av en hylse forsynt med de kileformede avflatinger, og en skrue med mutter som gjennomtrenger denne aksialt, idet både skruehodet og mutteren trykker på den tilhørende lask ved hjelp av skålliknende trykkpartier og forspenner lasken ved bevegelse langs kilflaten (eller konusflaten).
Et ytterligere alternativ av forspenningsmekanismen kan bestå i at minst én av boltene har en eksentrisk utbuktning i forhold til dens akse i kontaktområdene med laskene. Ved dreiing av bolten - som forøvrig ikke behøver å bli dreid for befestigelse av laskene - kan også på denne måten være tilveiebrakt med den ønskede trekkraft - forspenning i lasken.
Oppfinnelsen skal beskrives nærmere i det følgende i forbindelse med et utførelseseksempel og under henvisning til tegningene, der fig. 1 er et planriss av et (enkelt) tverrdelt rotorblad for et vindkraftanlegg i skjematisk tverrsnitt (spalten mellom delene tjener bare til anskueliggjøring), fig. 2 er et planriss av utsnittet x av skjøt-forbindelsen ifølge oppfinnelsen mellom de to rotorbladdeler på fig. 1, fig. 3 er et perspektivriss av den totale, men oppskårede som på fig. 1, skjøtforbindelse mellom de to rotorbladdeler på fig. 1, fig. 4 er et snitt i sin lengderetning i større målestokk av en av laskforbindelsene som samlet danner skjøtforbindelsen, fig. 5 er et planriss av lask-forbindelsen på fig. 4, og fig. 6 er et snittriss etter linjen A-A på fig. 4. Fig. 1 viser et tverrdelt rotorblad på et vindkraftanlegg i skjematisk tverrsnitt. Delingsfugen 2 mellom delene la og lb av rotorbladet 1 er åpnet. Begge rotorbladdeler la og lb består av en bærende kjerneprofil 3 og et aerodynamisk formet skall 4. Fig. 2 viser i planriss et utsnitt av skjøtforbindelsen mellom delene la og lb av rotorbladet 1 ved lukket delingsfuge 2. Skjøtforbindelsen består av flere lasker 5 som overlapper delingsfugen 2, og som er festet ved hjelp av bolter 6a og 6b på hver av de to rotorbladdeler la, lb.
På fig. 3 er delingsfugen 2 åpnet som på fig. 1, og avsnittene av de rotorbladdeler la, lb er vist i perspektiv. Også laskene 5 er av klarhetsgrunner vist oppskåret, og total-risset av den (oppdelte) skjøteforbindelse viser hvordan laskene 5 med deres bolter 6a, 6b er fordelt over det - urunde - tverrsnitt av den delte hulprofil. I området ved kjerne-profilen 3 er anordningen av laskene 5 tettest fordi der skjer den høyeste kraftoverføring; i de øvrige områder er de tilveiebrakt større avstander mellom laskene 5.
Fig. 4-6 viser en laskforbindelse i detalj. Ovenfor og nedenfor hulprofildelene la, lb er det anordnet en lask 5. Ved delen lb er begge lasker 5 ved hjelp av en bolt 6b under mellomkopling av skiver 7 festet av en skrue 8 med mutter 9. På delen la er befestigelsen av lasken 5 liknende, men bolten 6a har kileformede avflatinger 10 som avskråner fra boltens sentrum til dens ender og til aksen 11 for den (lengre) skrue 8 med mutter 9. Mellom skruens 8 hode og dens nærliggende lask 5 på den ene side og mellom mutteren 9 og dens nærliggende lask 5 på den annen side er det anordnet skålformede trykkpartier 12. Blir skruen 8 tiltrukket med mutteren 9 så utøver trykkpartiene 12 tilsvarende krefter på lasken 5; deres tilnærming særlig mot pro tildelen la lar den gli oppover langs boltens 6a avflatinger 10 slik at det i laskene 5 bygges opp en trekkspenning (i kontaktområdene for laskene 5 med avflatingene 10 kan laskenes 5 innervegger være tilpasset avflat-ingenes 10 flater). Trekkspenningene i laskene 5 fører til en stengende trykkspenning mot hulprofildelene la, lb i området ved deres delingsfuge 2.
Claims (7)
1. Anvendelse av en skjøtforbindelse av konstruksjonsdeler hvor det langs en skjøtfuge er anordnet lasker som overlapper skjøtfugen, og som med sine ender hver er festet direkte til en av konstruksjonsdelene som skal forbindes med liten lengdeavstand fra skjøtfugen, karakterisert ved at konstruksjonsdelene er delte hulprofiler, særlig rotorblad på vindkraftanlegg, og laskene (5) er anordnet langs delingsfugen (2) på omkretsen av profildelene i /la, lb).
2. Anvendelse av en skjøtforbindelse ifølge krav 1, karakterisert ved at anordningstettheten av laskene (5) langs delingsfugen (2) er forskjellig i avhengighet av trekkreftene som skal overføres på delingsfugen (2).
3. Anvendelse av en skjøtforbindelse ifølge krav 1 eller 2, karakterisert ved at det anordnet dobbellasker hver med en lask (5) anordnet på yttersiden og innersiden av hulprofilen (1).
4. Anvendelse av en skjøtforbindelse ifølge foregående krav, karakterisert ved at hver lask (5) henholdsvis dobbellask er forspennbar med en definert trekkraft.
5. Anvendelse av en skjøtforbindelse ifølge krav 4, karakterisert ved at laskene (5) på profildelene (la, lb) er festet ved hjelp av to bolter (6a, 6b), og minst én av boltene (6a) har en kileformet avflating (10) i dens akseretning i kontaktområdene med laskene (5), og holdes udreibar.
6. Anvendelse av en skjøtforbindelse ifølge krav 3 og 5, karakterisert ved at bolten (6a) består av en hylse forsynt med de kileformede avflatinger (10), og en skrue (8) med mutter (9) som gjennomtrenger denne aksialt, idet både skruehodet og mutteren trykker på den tilhørende lask (5) ved hjelp av skålliknende trykkpartier (12) og forspenner denne ved bevegelse langs kileflaten.
7. Anvendelse av en skjøtforbindelse ifølge krav 4, karakterisert ved at laskene 5 er festet til profildelen (la, lb) ved hjelp av to bolter (6), og minst én av boltene har i kontaktområdene med laskene (5) en utbuktning som er eksentrisk i forhold til dens akse.
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DE19962989A DE19962989B4 (de) | 1999-12-24 | 1999-12-24 | Rotorblatt für Windenergieanlagen |
PCT/EP2000/013167 WO2001048378A1 (de) | 1999-12-24 | 2000-12-22 | Stossverbindung für hohlprofile |
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NO20023018D0 NO20023018D0 (no) | 2002-06-21 |
NO20023018L NO20023018L (no) | 2002-08-19 |
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NO20023018A NO324961B1 (no) | 1999-12-24 | 2002-06-21 | Skjotforbindelse for hulprofiler |
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EP (1) | EP1244873B1 (no) |
JP (1) | JP2003518586A (no) |
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AT (1) | ATE265000T1 (no) |
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NO (1) | NO324961B1 (no) |
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-
1999
- 1999-12-24 DE DE19962989A patent/DE19962989B4/de not_active Expired - Fee Related
-
2000
- 2000-12-22 AU AU26761/01A patent/AU2676101A/en not_active Abandoned
- 2000-12-22 JP JP2001548863A patent/JP2003518586A/ja active Pending
- 2000-12-22 BR BRPI0016724-0A patent/BR0016724B1/pt not_active IP Right Cessation
- 2000-12-22 EP EP00990016A patent/EP1244873B1/de not_active Expired - Lifetime
- 2000-12-22 ES ES00990016T patent/ES2217026T3/es not_active Expired - Lifetime
- 2000-12-22 AT AT00990016T patent/ATE265000T1/de active
- 2000-12-22 DK DK00990016T patent/DK1244873T3/da active
- 2000-12-22 CA CA002394969A patent/CA2394969C/en not_active Expired - Fee Related
- 2000-12-22 KR KR1020027008243A patent/KR20020062992A/ko not_active Application Discontinuation
- 2000-12-22 DE DE50006190T patent/DE50006190D1/de not_active Expired - Lifetime
- 2000-12-22 WO PCT/EP2000/013167 patent/WO2001048378A1/de not_active Application Discontinuation
- 2000-12-22 PT PT00990016T patent/PT1244873E/pt unknown
- 2000-12-22 US US10/168,814 patent/US20030138290A1/en not_active Abandoned
-
2002
- 2002-06-21 NO NO20023018A patent/NO324961B1/no not_active IP Right Cessation
-
2005
- 2005-11-28 US US11/289,113 patent/US7481624B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7481624B2 (en) | 2009-01-27 |
US20030138290A1 (en) | 2003-07-24 |
ATE265000T1 (de) | 2004-05-15 |
KR20020062992A (ko) | 2002-07-31 |
BR0016724A (pt) | 2002-09-03 |
DE19962989A1 (de) | 2001-07-05 |
AU2676101A (en) | 2001-07-09 |
EP1244873A1 (de) | 2002-10-02 |
BR0016724B1 (pt) | 2009-01-13 |
CA2394969A1 (en) | 2001-07-05 |
PT1244873E (pt) | 2004-08-31 |
ES2217026T3 (es) | 2004-11-01 |
DK1244873T3 (da) | 2004-08-09 |
EP1244873B1 (de) | 2004-04-21 |
JP2003518586A (ja) | 2003-06-10 |
NO20023018L (no) | 2002-08-19 |
DE19962989B4 (de) | 2006-04-13 |
NO20023018D0 (no) | 2002-06-21 |
CA2394969C (en) | 2005-06-07 |
WO2001048378A1 (de) | 2001-07-05 |
DE50006190D1 (de) | 2004-05-27 |
US20060083611A1 (en) | 2006-04-20 |
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