CN101892946B - Root structural design of wind driven generator blade - Google Patents
Root structural design of wind driven generator blade Download PDFInfo
- Publication number
- CN101892946B CN101892946B CN201010237629XA CN201010237629A CN101892946B CN 101892946 B CN101892946 B CN 101892946B CN 201010237629X A CN201010237629X A CN 201010237629XA CN 201010237629 A CN201010237629 A CN 201010237629A CN 101892946 B CN101892946 B CN 101892946B
- Authority
- CN
- China
- Prior art keywords
- blade
- glass fibre
- bolt
- bamboo
- bamboo wood
- 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.)
- Expired - Fee Related
Links
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 90
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 90
- 241001330002 Bambuseae Species 0.000 claims abstract description 90
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 90
- 239000011425 bamboo Substances 0.000 claims abstract description 90
- 239000003365 glass fiber Substances 0.000 claims abstract description 61
- 239000002023 wood Substances 0.000 claims abstract description 51
- 239000000835 fiber Substances 0.000 claims description 13
- 230000008521 reorganization Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 19
- 238000005516 engineering process Methods 0.000 description 53
- 238000004519 manufacturing process Methods 0.000 description 19
- 229920005989 resin Polymers 0.000 description 18
- 239000011347 resin Substances 0.000 description 18
- 239000002184 metal Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 17
- 238000005553 drilling Methods 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 9
- 230000008676 import Effects 0.000 description 9
- 238000000465 moulding Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000011152 fibreglass Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 210000002615 epidermis Anatomy 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007514 turning Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000035943 smell Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000009941 weaving 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
- 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
-
- 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
The invention relates to a wind driven generator blade, in particular to a structural design of a blade root, which comprises a unique blade shell structure designed thereby and a special material used by the same. The blade root part related in the invention is composed of a long-strip bamboo wood, a bolt or a bolt sleeve and glass fiber, which are arranged according to a certain sequence and style so as to achieve the aim of bearing the loading strength of the blade.
Description
Technical field
The present invention relates to the leaf and root structure and the production method thereof of blade of wind-driven generator; Relate in particular to a kind of novel be the leaf and root structure and the production method thereof of master's composite material wind-driven generator blade with the strip bamboo wood, it is applicable to the manufacturing of all horizontal axis wind-driven generator blades.
Background technique
Traditional blade of wind-driven generator is mainly fiberglass blade.Its price accounts for 1/3 of whole wind power generator cost, and reason is that its prices of raw and semifnished materials are expensive; And this product finishes the very difficult recycling in back, also is inconvenient to handle in life time.And bamboo matter blade by comparison the product cost of raw material be lower than like product more than 20%.Simultaneously, compare the traditional blades manufacturing technology, this product is easy to recycling, and the carbon emission amount that production process is brought reduces greatly, is the blade technology of new generation of high performance-price ratio, environmental protection, representative low-carbon economy.
Design with regard to whole blade; The blade root design is one of important step of blade structure design; And being connected of blade and wheel hub leans on bolt or bolt sleeve to be connected with it to realize; Wheel hub is for connecting the carrier of 3 blades, so the suffered load of blade finally can be delivered on the wind generator unit wheel hub through blade root, so the position that blade root is a stressed maximum in the whole blade structure, structure is the most complicated.
And comparatively common a kind of manufacturing process that is applied to the fiberglass blade blade root is the back drilling technology in the middle of actual production.Back drilling technology is the shaping structures technology that a kind of wind-powered electricity generation machine blade adopts the boring erection bolt; Promptly behind blade forming; Hole at the blade root position with special drill press and frock; Radially embedding tapped metal fixed block apart from blade root end face a distance, through screw rod tapped metal fixed block is being fixed on the blade root position then.Back drilling technology can cause the machining damage to blade root original structure layer owing to be after blade forming, to hole again, therefore needs the leaf and root structure design to have higher safety coefficient.
The another kind of common manufacturing process that is applied to the fiberglass blade blade root is the pre-buried technology of bolt sleeve.The pre-buried technology of bolt sleeve is a kind of before blade shell carries out resin importing moulding, puts into bolt sleeve and fixing uniformly in blade mold blade root position, after resin imports; Make other structural material bondings of bolt sleeve and blade be one; Thereby be implemented under the situation of damaged blade construction layer not, bolt sleeve and blade root are linked together, make blade directly to be connected with wheel hub; This method has been avoided the damage of back drilling technology to the blade structure layer fully; Usability and Safety performance are better, but also can save some equipment and the cost of raw material, reduce product price to a certain extent.
No matter the back drilling technology still is the pre-buried technology of bolt sleeve, how all need to consider to be connected bolt or bolt sleeve with structural material in the blade shell.The technology that bolt is connected with glass fibre is ripe relatively, but as the blade structure material introduce bamboo wood and then need carry out special leaf and root structure design, with being connected between completion glass fibre and bolt or bolt sleeve, glass fibre and the bamboo wood.The invention solves the connectivity problem between the interior glass fibre of bamboo blade of wind-driven generator housing and bolt or bolt sleeve and glass fibre and the bamboo wood.
Summary of the invention
The purpose of this invention is to provide a kind of novel wind generator blade root structure; Through the change on structure and material; Explore a kind of manufacturing process that helps protecting bamboo blade root construction layer more, comprise adhering method and processing technology thereof between said glass fibre and said bolt or bolt sleeve and said glass fibre and the said strip bamboo wood.
To achieve these goals; The present invention provides a kind of blade of wind-driven generator; The housing of said blade comprises bolt or bolt sleeve, glass fibre and bamboo wood at least in the part in 10 meters of roots of blade; Wherein said bamboo wood is strip structure and is arranged side by side that the surface of contact of its adjacent two bamboo bars is parallel to each other, to ensure that all bamboo bar fiber direction basically identicals are to bear blade loading jointly.And; Be that all or part of mode through mitered is an one by adhesive bonds being connected between said glass fibre and said bolt or bolt sleeve and/or the said strip bamboo wood, wherein said glass fibre and mitered mode between said bolt or bolt sleeve and/or the said strip bamboo wood are meant a certain length in bamboo bar two ends are cut into after the wedge shape being connected of two sphenoid surface that becomes to have the said glass fibre of wedge angle with lay; Said bolt or the bolt sleeve that will have a wedge angle and lay become to have being connected of two sphenoid surface of the said glass fibre of wedge angle.But for the back drilling technology; The blade root bolt carries out behind blade forming; So the centerline hole position that requires tapped metal fixed block is not less than 15cm, is not less than 15cm apart from the distance of bamboo initial position apart from the distance of blade root end face, connect and have enough intensity to guarantee blade root.
Thus; All or part of bonding use mitered; To increase the bond area between said glass fibre and said bolt or bolt sleeve and/or the said strip bamboo wood, improve the adhesion strength between said glass fibre and said bolt or bolt sleeve and/or the said strip bamboo wood then.If wherein said strip bamboo sliver transvers section is a rectangle, the surface of contact between the then adjacent two rectangular structure bamboo bars is perpendicular to the blade shell outer surface.
The cross section of strip bamboo wood is generally rectangle, but also can be designed to trapezoidal, other parallelogram or other analogous shapes according to the specialities needs.
Bamboo wood can be selected function admirable, in liberal supply, cheap bamboo kind usually, and selectable bamboo kind includes but not limited to mao bamboon or cizu.Bamboo wood can create Laminated wood or reorganization material, suppresses as a whole bamboo composite material through the bamboo unit of multilayer chip bamboo unit or acquisition after discongesting and forms the rectangular structure bamboo of monomer bar.
The vacuum introducing technology that uses leaf and root structure of the present invention can adopt the blade manufacturing generally to adopt carries out the global formation of blade root and/or blade shell; Its blade root both can have been adopted back drilling technology (relate between said strip bamboo wood and the said glass fibre bonding), also can adopt the pre-buried technology of bolt sleeve (relate between said glass fibre and said bolt or bolt sleeve and/or the said strip bamboo wood bonding).
The pre-buried technology of bolt sleeve of the vacuum introducing technology of the global formation of said blade root and/or blade shell and back drilling technology step are:
1. use intact mould, and the demoulding is carried out on its surface handled;
2. the said glass fibre of lay in position, its fiber direction is parallel to the axis of runner blade direction;
Apart from blade 0m at least the position of 10cm along mould shaft to the said strip bamboo wood that has the oblique section to the even lay of blade tip direction;
4. exceeding the blade 0m said glass fibre of position lay of 10cm at least, its fiber direction is parallel to the axis of runner blade direction;
5. the said bolt sleeve of lay (back drilling technology blade does not have this step) in the mould appropriate location;
6. the said glass fibre of lay in position, its fiber direction is parallel to the axis of runner blade direction;
7. the lay vacuum imports auxilliary material and vacuum importing pipeline;
8. use vacuum seal rubber belt that vacuum bag and mould are bonded together the formation enclosed cavity;
9. use the vacuum equipment extracting vacuum to be-0.08--0.1MPa;
10. vacuum imports bonding matrix (being epoxy resin here);
11. after about 4-8 hour, tear vacuum off and import auxilliary material, and carry out bonding to blade shell;
Be placed on the blade punch device 12. will make the blade of moulding, and the punching (the pre-buried technology of bolt sleeve does not have this step) on the glass fibre that is no less than 15cm apart from blade root end face and/or bamboo tip in the blade root position;
13. radially embed tapped metal fixed block, through screw rod tapped metal fixed block be fixed on (the pre-buried technology of bolt sleeve does not have this step) on the blade root position then.
In the vacuum introducing technology step of the global formation of above-mentioned blade root and/or blade shell, the technical characteristics that is different from existing technology is mainly:
1. said bamboo wood is necessary for the strip bamboo wood that has wedge shape;
2. must have that the mode with mitered is connected between said glass fibre and said bolt or bolt sleeve and/or the said strip bamboo wood;
3. extracting vacuum is-0.08--0.1MPa.
Description of drawings
Through hereinafter with reference to the description part that accompanying drawing carried out, can better understand all above-mentioned characteristics, wherein said accompanying drawing shows non-limiting example of the present invention, said accompanying drawing is:
Fig. 1 is the overall schematic of wind-driven generator blade shell structure among the present invention, and wherein 11 is root of blade, is called blade root; 12 is the axis of runner blade direction;
Fig. 2 is the view of the section A of Fig. 1;
Fig. 3 is the view of the section B of Fig. 2;
Fig. 4 is the blade root fragmentary axial cross-section of the pre-buried technology of bolt sleeve among the present invention;
Fig. 5 is the longitudinal profile schematic representation of bolt sleeve 41 in the pre-buried technology, wherein 51 for the bolt sleeve internal whorl, be used for blade and be connected with the main frame wheel hub;
Fig. 6 is the blade root fragmentary axial cross-section of back drilling technology among the present invention;
Fig. 7 is the longitudinal profile schematic representation of bolt 61 in the drilling technology of back, and wherein 71 is threaded screw rod, and 72 is tapped metal fixed block, and 73 is the screw thread that bolt is connected with the metal fixed block, and 74 for being used to connect the screw thread of wheel hub;
Fig. 8 is a bamboo sliver transvers section schematic representation, and wherein 81 is the rectangular cross-section, and 82 is the trapezoid cross section, and 83 is parallelogram section.
Embodiment
The leaf and root structure that the present invention relates to a kind of blade of wind-driven generator with and manufacturing process; The shell construction of this kind blade of wind-driven generator such as Fig. 1, Fig. 5, shown in Figure 7; Wherein 11 is the blade root position of blade, will link to each other with the wheel hub of wind-driven generator through the screw thread 74 of bolt or the screw thread 51 of bolt sleeve.
1, the selection of bamboo wood and processing
1) Laminated wood, it is with the thick bamboo chip of 1～3mm of well cutting (being thin bamboo strips used for weaving again), through applying glue, rift grain assembly, exert pressure gummed and a kind of structural material of obtaining;
2) reorganization bamboo, it be by bamboo bundle or directional bamboo fiber felt for constituting the unit, press plate, the square bar that forms through assembly adhesive by the rift grain direction.The reorganization bamboo is that the bamboo resource with China's southern area raised growth is raw material; Integrated through adopting the controlled stripping technique of bamboo fiber, former bamboo single board to flatten the multinomial technology such as optimisation technique, bamboo wood wide spectrum bonding technique, bamboo wood strengthen unit leading-in technique of technology, the basic fibrous composite of bamboo manufacturing cell, finally manufacture high-performance multipurpose bamboo base fibrous composite.This technology is that China is in the another important breakthrough of bamboo processing application; This technology can be brought up to the utilization ratio of bamboo wood more than 90% from existing about 20～50%; The mechanical performance index of product such as resistance to flexure can reach more than the 300MPa, and tensile strength reaches more than the 250MPa, and compressive strength reaches more than the 140MPa; Young's modulus reaches more than the 27GPa, so the employed bamboo wood preferred material of blade root is the reorganization bamboo.
The cizu base material has good physical and mechanical property; Not having joint place tensile strength at the cizu epidermis is 482MPa, and tensile modulus of elasticity is 43.9GPa, does not have joint place tensile strength and tensile modulus of elasticity far above the mao bamboon epidermis; So its mechanical property of reorganization bamboo that adopts cizu to produce is superior to mao bamboon.
The cizu fiber is perfectly straight, the bamboo wall is thin evenly thin, and it discongests effective, thereby has guaranteed the stability of product performance; And the cizu storage capacity is big, and output is high, and cizu output surpasses mao bamboon; Be one of bamboo kind of China's emphasis cultivation, after having guaranteed to go into operation enough raw material supplyings arranged.The distribution of cizu is simultaneously concentrated, and mainly is distributed in areas such as Sichuan, Chongqing, Guizhou, province in Sichuan only, and the cultivated area of cizu just reaches 60,000 hectares, accounts for 1/3 of Sichuan Province's bamboo grove area.Because concentrate in the place of production, for industrialized production is provided convenience.
3) selection principle of bamboo material transversal surface
The design of bamboo wood sectional shape is in order to reduce the resin content in the blade shell, to be convenient to processing, lay simultaneously; Bamboo sliver transvers section optimum shape is a rectangle or approximate rectangular; Also can select trapezoidal or other parallelogram shape, Fig. 8 shows difform bamboo sliver transvers section, rectangular cross-section 81; Trapezoid cross section 82, parallelogram section 83.
2, the processing of bolt and/or bolt sleeve
Referring to Fig. 4-Fig. 7; Bolt 61 or bolt sleeve 41 are its manufacturing firm shapes according to design; Use corresponding steel to forge to mill or casting material hair training (the hair training of the hair training of bolt sleeve 41, the hair training of screw rod 71, metal fixed block 72), be aided with again that turning processing (bolt sleeve internal thread 51, metal fixed block screw thread 73, screw flight 74) accomplishes.It is a kind of metal machine-tooled method commonly used that forging is milled, and refers to the machine-tooled method of used steel material blank through forging, numerical control milling machine machine shaping; Casting is human a kind of metal fever processing technology of grasping relatively early, and it is meant the processing mode of treating its solidification forming in the room temperature for mold liquid but that pour solidified material into given shape in the near future; Turning is a kind of processing method of machined into, and it is that Workpiece Rotating is done main movement, and lathe tool is made the cutting working method of feed movement.Usually combined method can be selected to process according to said method and the actual conditions of self by manufacturer.
3, the Placement of glass fibre and bolt or bolt sleeve and/or bamboo wood
1) Placement of said glass fibre and said bolt or bolt sleeve
Being connected between said glass fibre 42 and said bolt 61 or the bolt sleeve 41 be all or part of be one through mitered 44 and/45 mode by adhesive bonds; Wherein in the pre-buried technology of bolt sleeve, said glass fibre 42 and mitered mode 44 between the said bolt sleeve 41 are meant that two sphenoid surface that said bolt sleeve 41 that has wedge angle and lay are become to have the said glass fibre 42 of wedge angle import the bonding connecting means of resin through vacuum; And in the drilling technology of back; Be through after importing moulding in the glass fibre vacuum between said glass fibre 42 and the said bolt 61; On the glass fibre that is no less than 15cm apart from blade root end face 62 and/or apart from bamboo most advanced and sophisticated 63, punch; And radially embed tapped metal fixed block 72, through screw rod 71 tapped metal fixed block 72 is fixed on then and realizes on the blade root position connecting.
2) Placement of said glass fibre and said strip bamboo wood
Be that all or part of mode through mitered is an one by adhesive bonds being connected between said glass fibre 42 and the said strip bamboo wood 43, wherein said glass fibre 42 and mitered mode 45 between the said strip bamboo wood 43 are meant two sphenoid surface that a certain length in said strip bamboo wood 43 two ends cuts into after the wedge shape with lay becomes to have the said glass fibre 42 of wedge angle are imported the bonding method that is connected of resin through vacuum.
Can accomplish being connected of said glass fibre 42 and said bolt 61 or bolt sleeve 41 and/or said strip bamboo wood 43 from the above mentioned.
4, blade root shop layer
Fig. 1 is the overview of wind-driven generator blade shell structure among the present invention, and Fig. 2 is the view of the section A of Fig. 1, and Fig. 3 is the view of the section B of Fig. 2.As shown in Figure 3, it comprises glass fibre (glass fibre reinforced plastics) covering 31 of upper and lower surfaces, sandwich material (can be bamboo wood, PVC foam etc.) 32.Can be known that by Fig. 3 the blade body structure adopts sandwich sandwich structure, the core outside also has the several layers glass fibre; With form glass fiber reinforced plastic surface after the resin compounded; Formation can guarantee like this that to the protection of core blade reaches the mechanical property of designing requirement, can significantly reduce the weight of blade simultaneously again.
Fig. 4 is the blade root fragmentary axial cross-section of the pre-buried technology of bolt sleeve among the present invention, and as shown in Figure 4, it comprises said bolt sleeve 41, glass fibre 42 and bamboo wood 43.Wherein, the blade root bolt sleeve 41 that is wound with glass fibre 42 is laid in above the bamboo wood 43, the gap between the bolt sleeve 41 embeds glass fibre 42 and fills, and requires the glass fiber direction to be parallel to mold axis direction 12.
Fig. 6 is the blade root fragmentary axial cross-section of back drilling technology among the present invention, and as shown in Figure 6, it comprises said bolt 61, glass fibre 42 and bamboo wood 43.Wherein, Be through after importing moulding in glass fibre 42 vacuum between glass fibre 42 and the bolt 61; Punching on the glass fibre 42 that is no less than 15cm apart from blade root end face 62 and/or apart from bamboo most advanced and sophisticated 63; And radially embed tapped metal fixed block 72, through screw rod 71 tapped metal fixed block 72 is fixed on then and realizes on the blade root position connecting.
5, blade root is inculcated
1) the global formation vacuum of blade root and/or blade shell imports
The pre-buried technology of bolt sleeve of the vacuum introducing technology of the global formation of blade root and/or blade shell and back drilling technology step are:
(1) uses intact mould, and the demoulding is carried out on its surface handled;
(2) the said glass fibre 42 of lay in position, its fiber direction is parallel to axis of runner blade direction 12;
(3) apart from blade 0m at least the position of 10cm along mould shaft to the said strip bamboo wood 43 that has the oblique section to the even lay of blade tip direction;
(4) exceeding the blade 0m said glass fibre 42 of position lay of 10cm at least, its fiber direction is parallel to axis of runner blade direction 12;
(5) the said bolt sleeve 41 of even lay (back drilling technology blade does not have this step) in the mould appropriate location;
(6) the said glass fibre 42 of lay in position, its fiber direction is parallel to axis of runner blade direction 12;
(7) the lay vacuum imports auxilliary material and vacuum importing pipeline;
8. use vacuum seal rubber belt that vacuum bag and mould are bonded together the formation enclosed cavity;
(9) use the vacuum equipment extracting vacuum to be-0.08--0.1MPa;
(10) vacuum imports bonding matrix (being epoxy resin here);
(11) after about 4-8 hour, tear vacuum off and import auxilliary material, and carry out bonding blade shell;
(12) blade that will make moulding is placed on the blade punch device, and is no less than punching (the pre-buried technology of bolt sleeve does not have this step) on the glass fibre of 15cm apart from blade root end face and/or bamboo tip in the blade root position;
(13) radially embed tapped metal fixed block 72, through screw rod 71 tapped metal fixed block 72 is fixed on (the pre-buried technology of bolt sleeve does not have this step) on the blade root position then.
When carrying out the shop layer of blade shell and/or blade root; The fiber direction of glass fibre 42 direction 12 that need parallel to the axis; Because blade is in running, main power is to the conduction of blade tip direction, with the cellosilk of glass fibre 42 direction 12 that parallels to the axis from bolt 61 or bolt sleeve 41; More help the conduction of power, more can effectively guarantee the Security of blade.
In the vacuum introducing technology step of the blade root of above-mentioned blade and/or the global formation of blade shell, the technical characteristics that is different from existing technology is mainly:
(1) said bamboo wood 43 is necessary for the strip bamboo wood that has wedge shape;
(2) must have that the mode with mitered 44 and/or 45 is connected between said glass fibre 42 and said bolt 61 or bolt sleeve 41 and/or the said strip bamboo wood 43;
(3) extracting vacuum is-0.08--0.1MPa.
2) advantage of vacuum introducing technology
Stick with paste in the technology at common hand, reinforcing material is laid in the mould, adopts brush, the manual reinforcing material that soaks into of rod or other modes.A kind of in addition unnecessary resin in the lamination of improving one's methods when being to use vacuum bag sucking-off hand to stick with paste.Improve the content of glass like this, obtain more high tenacity and lighter product, vacuum resin is poured technology into and is had a lot of advantages with respect to traditional technology.
(1) HQ high quality goods more: resin soaks into glass under vacuum environment, compares with conventional fabrication processes, and the bubble in the goods is few.Do not leave unnecessary resin in the system, glass fiber content is very high, can reach 70%, even higher.Resulting product weight is lighter, intensity is higher, constant product quality.
(2) still less resin loss: pour technology into vacuum resin, the accurately budget of the consumption of resin is stuck with paste or spray technology for hand, can be restive because of operator's polytrope.Vacuum resin is poured technology into and can be the more important thing is so that the loss of resin reaches minimum, can practice thrift cost like this.
(3) resin distribution is even: for goods, the pressure that the vacuum of different piece produces is consistent, so resin reaches unanimity to the good content of infiltration of glass.
(4) the process volatilization still less: do not have the instrument of brush or rod and so in the production process, can not cause resin to splash or the drip phenomenon generation, more do not have a large amount of smells and occur.So it can provide clean, a safe and friendly working environment, the protection operator's is healthy.
(5) use one-side mould: only mould just can obtain the goods of two sides smooth, can control thickness of product preferably.Practice thrift die manufacturing cost and time.
Claims (5)
1. a blade of wind-driven generator is characterized in that, the housing of said blade comprises bolt (61) or bolt sleeve (41), glass fibre (42) and bamboo wood (43) at least in the part (11) in 10 meters of roots of blade, wherein:
Said bolt or bolt sleeve are connected with said glass fibre, and said glass fibre is connected with said bamboo wood;
Said bamboo wood be strip structure and with said glass fibre between be connected and all or part ofly realize through mitered (45) mode.
2. blade of wind-driven generator as claimed in claim 1; It is characterized in that; Said glass fibre (42) is connected (44) with said bolt (61) or bolt sleeve (41) mitered; Said glass fibre (42) is connected (45) with said bamboo wood (43) mitered, and the fiber direction of said glass fibre is the axial direction (12) that is parallel to said blade, promptly perpendicular to the direction of the cross section of said blade.
3. blade of wind-driven generator as claimed in claim 1 is characterized in that, the bamboo fibre direction is parallel to axis of runner blade direction (12) in the employed bamboo wood (43), promptly perpendicular to the direction of leaf cross-section.
4. blade of wind-driven generator as claimed in claim 1 is characterized in that, employed bamboo wood (43) is Laminated wood or reorganization bamboo.
5. blade of wind-driven generator as claimed in claim 1 is characterized in that, employed bamboo wood (43) is mao bamboon or cizu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010237629XA CN101892946B (en) | 2010-07-22 | 2010-07-22 | Root structural design of wind driven generator blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010237629XA CN101892946B (en) | 2010-07-22 | 2010-07-22 | Root structural design of wind driven generator blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101892946A CN101892946A (en) | 2010-11-24 |
| CN101892946B true CN101892946B (en) | 2012-07-25 |
Family
ID=43102251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010237629XA Expired - Fee Related CN101892946B (en) | 2010-07-22 | 2010-07-22 | Root structural design of wind driven generator blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101892946B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL2157315T3 (en) * | 2008-08-21 | 2018-01-31 | Lm Wind Power As | Blade section for a wind turbine blade |
| DE102008049016A1 (en) * | 2008-09-25 | 2010-04-15 | Repower Systems Ag | Rotor blade with a belt with a decreasing width in the longitudinal direction, method for producing the rotor blade and laying aid for Gelegebänder the belt |
| CN102022288B (en) * | 2010-12-03 | 2013-02-06 | 北京可汗之风科技有限公司 | Design for bamboo wood blade root structure of wind driven generator |
| CN102230448A (en) * | 2011-05-25 | 2011-11-02 | 北京世纪威能风电设备有限公司 | Wind power generator blade of bamboo fibre reinforced composite material and manufacture method thereof |
| CN102400859A (en) * | 2011-08-12 | 2012-04-04 | 北京可汗之风科技有限公司 | Blade root structure of wind power blade |
| CN102582088A (en) * | 2012-02-17 | 2012-07-18 | 北京可汗之风科技有限公司 | Fiber-reinforced bamboo-based composite material for fan blade and manufacturing method for composite material |
| CN103692660B (en) * | 2013-12-16 | 2016-02-10 | 中材科技风电叶片股份有限公司北京分公司 | A kind of method and device making pre-buried blade on rear punching blade mold |
| CN107269461A (en) * | 2017-08-10 | 2017-10-20 | 中材科技风电叶片股份有限公司 | Wind electricity blade leaf and root structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2041730U (en) * | 1988-08-25 | 1989-07-26 | 张若林 | Wind-driven engine |
| CN101074647A (en) * | 2007-06-25 | 2007-11-21 | 吴江市方霞企业信息咨询有限公司 | Bamboo-fibre power-driven generator leaf |
| CN201155423Y (en) * | 2008-02-15 | 2008-11-26 | 无锡瑞尔竹风科技有限公司 | Bamboo composite material wind power generator vane |
| CN201228611Y (en) * | 2008-04-11 | 2009-04-29 | 江苏天奇物流***工程股份有限公司 | Wind power generator vane body assembled by bamboo lamination material with chamfer |
| CN201288640Y (en) * | 2008-09-29 | 2009-08-12 | 浙江运达风力发电工程有限公司 | Wind power generating set |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004132186A (en) * | 2002-10-08 | 2004-04-30 | Hanshin Gijutsu Kenkyusho:Kk | Housing type windmill |
-
2010
- 2010-07-22 CN CN201010237629XA patent/CN101892946B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2041730U (en) * | 1988-08-25 | 1989-07-26 | 张若林 | Wind-driven engine |
| CN101074647A (en) * | 2007-06-25 | 2007-11-21 | 吴江市方霞企业信息咨询有限公司 | Bamboo-fibre power-driven generator leaf |
| CN201155423Y (en) * | 2008-02-15 | 2008-11-26 | 无锡瑞尔竹风科技有限公司 | Bamboo composite material wind power generator vane |
| CN201228611Y (en) * | 2008-04-11 | 2009-04-29 | 江苏天奇物流***工程股份有限公司 | Wind power generator vane body assembled by bamboo lamination material with chamfer |
| CN201288640Y (en) * | 2008-09-29 | 2009-08-12 | 浙江运达风力发电工程有限公司 | Wind power generating set |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2004-132186A 2004.04.30 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101892946A (en) | 2010-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101892946B (en) | Root structural design of wind driven generator blade | |
| CN101666290B (en) | Wind turbine blade structure, machining method and applications thereof | |
| KR101834981B1 (en) | Module for holding at least one bushing | |
| CN106903357A (en) | The processing method in thin-walled honeycomb core Curve Machining type face | |
| CN102756252B (en) | Method for machining slotted holes on carbon fiber laminated boards | |
| CN102022288B (en) | Design for bamboo wood blade root structure of wind driven generator | |
| CN101067350A (en) | Strength natural figured bamboo floor | |
| CN201155423Y (en) | Bamboo composite material wind power generator vane | |
| CN110439630A (en) | A kind of Varying-thickness composite material stator blade and its forming method | |
| CN102230448A (en) | Wind power generator blade of bamboo fibre reinforced composite material and manufacture method thereof | |
| CN101235797A (en) | Bamboo compound material wind mill blade and its vacuum infusion process | |
| CN102400859A (en) | Blade root structure of wind power blade | |
| CN107214781A (en) | A kind of thin stripe type solid wood composite laminted material | |
| CN202827970U (en) | Short carbon fiber bicycle crank | |
| CN102926501A (en) | Reinforced laminate vertically embedded with FRP (Fiber Reinforce Plastic), laminated wood beam and pillar member | |
| CN109177241B (en) | Manufacturing process of wood-core glass fiber reinforced plastic blade of small wind driven generator | |
| CN203510485U (en) | Diamond composite circular saw web | |
| CN205950947U (en) | Compound high strength resistance to compression post of bamboo wood | |
| CN201989206U (en) | Unequal-thickness bamboo chip integrated board | |
| CN108437488A (en) | A kind of production method of carbon fibre composite centrifuge rotor | |
| CN103909662A (en) | Method for manufacturing embedded bolt sleeve at root of fan blade by pultrusion process | |
| CN103358379A (en) | Method for preparing hollow solid wood post | |
| CN104589709B (en) | A kind of lightweight cell structure battenboard collecting heat conduction and be carried on one and preparation method thereof | |
| CN203303602U (en) | Pre-impregnated fiber composite arched sheet | |
| CN202370760U (en) | Medium-sized wind turbine blade middle section and preparation equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20101124 Assignee: Suzhou Khan Jimi Technology Co., Ltd Assignor: Beijing KhanWind Tech Ltd. Contract record no.: 2016990000432 Denomination of invention: Root structural design of wind driven generator blade Granted publication date: 20120725 License type: Common License Record date: 20161018 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing KhanWind Tech Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20190722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |