CN209228526U - A kind of small-sized wind power generator wooden core glass-fibre blade - Google Patents
A kind of small-sized wind power generator wooden core glass-fibre blade Download PDFInfo
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- CN209228526U CN209228526U CN201821326221.8U CN201821326221U CN209228526U CN 209228526 U CN209228526 U CN 209228526U CN 201821326221 U CN201821326221 U CN 201821326221U CN 209228526 U CN209228526 U CN 209228526U
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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
Abstract
The utility model discloses a kind of small-sized wind power generator wooden core glass-fibre blades, are made of wooden core blade and covering.Generated output 50~5000W wind-driven generator wooden core blade profile size a length of L200~2500mm, chord length M are 50~300mm；Generated output 5000~20000W wind-driven generator wooden core blade profile size a length of L2000~5000mm, chord length M are 200~1000mm, and established angle α is 2 °~16 °.Covering is passed through by no alkali twill S- glass fabric and without alkali plain weave S- glass fibre in wooden core blade surface continuous-winding forming.This blade advantage is: 1. effectively mitigate leaf weight, select S- glass fibre knitted fabric to be continuously alternately laid with, to greatest extent the efficiency of reinforcing fiber, improve blade strength and rigidity；2. saving modeling and molding complicated procedures of forming and time；It is environment-friendly products 3. not generating pollution compared with polyurethane core, polystyrene core.
Description
Technical field
The utility model relates to blade of wind-driven generator, refer in particular to a kind of small-sized wind power generator wooden core glass fibre leaf
Piece.
Background technique
Wind-driven generator has the advantage for improving energy resource structure, economic and environment-friendly etc. as a kind of green energy resource, and
One trend of future source of energy electric power development.Impeller is that wind-driven generator is most important, component of most expensive, and single component accounts for about whole
The 20% of a wind-driven generator cost, and the key of impeller is then blade.Wind-driven generator is that one kind converts wind energy into machinery
Can, then it is converted by mechanical energy the unit and system of electric energy, biggish wind-power electricity generation power is obtained, key is to have
The blade of the brisk rotation of energy.So blade of wind-driven generator technology is the core technology of wind power generating set.Firstly, blade
Shape determines the aerodynamic quality of entire unit, and a blade with good aerodynamic profile can make unit
Energy conversion efficiency is higher, obtains more wind energies.Secondly, blade subjects very big load (wind-force and mass force) again, from
Wind regime in right boundary is complicated and changeable, and the load carried on blade is more complex, so requiring blade must have enough intensity
And rigidity.
It can be seen that the material of blade, structure and manufacture craft are very crucial.Material and structure guarantee the strong of blade
Degree and rigidity, and weight is light, also to there is specification, easy manufacture craft and method guarantee to make with meeting sky
The vane member of aerodynamics shape, and it is effectively reduced leaf production cost.
Currently, being increased mostly using timber, steel alloy and aluminium alloy, fiber on the make in small-sized wind power generator blade
The composite materials such as strong composite material, glass reinforced plastic, carbon fiber.It was verified that in addition to timber, other steel alloys and aluminium alloy, glass
For blade of wind-driven generator made of the composite materials such as steel, carbon fiber there is manufacturing process complexity, moulding process is cumbersome, needs to build
Mould requires height to the technical conditions of mould processing and operation, expensive, increases wind generator and causes this, such as glass
Glass steel leaf production is: upper/lower die is first processed, the coating release agent on upper/lower die, then glass fibre is pasted layer by layer
Then cloth places foam core, then molding up and down, heat-shaping.It such as molds bad, is easy to appear the case that rises, hole (lacking resin)
The defects of.The middle-size and small-size main user of wind-driven generator is the use of off-network family, so, how to mitigate leaf weight, extends and use
In the service life, reducing cost is the development trend for making blade in middle-size and small-size wind-driven generator from now on.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of small-sized wind power generator wooden core glass-fibre blade, from
Selection reaches that production leaf weight is light, and long service life, processing and manufacturing process is easy, the less expensive mesh of cost to processing technology
's.
The technical problems to be solved in the utility model with flowering structure by being realized: a kind of small-sized wind power generator wooden core glass fibers
Blade is tieed up, mainly includes wooden core, S- glass fibre composition；
The wooden core is made of pinus sylvestris var. mongolica plate adhesion raw material；
Timber sorting: selected first-class pinus sylvestris var. mongolica plate adhesion makees raw material, it is desirable that each knot diameter on plate is less than
2cm, crack length are no more than 10cm；Raw material is first dried through high steam, it is desirable that moisture content of finished products is less than 10%；
The wooden core blade obtains each section foline data, calculates the major parameters such as chord length and established angle, is then based on a little
The geometric transformation of coordinate find out each section of blade in the three-dimensional coordinate of space physical location, it is finally complete based on 3D modeling theory
It draws at blade computer 3D.Generated output 50~5000W wind-driven generator wooden core blade: outer dimension long (L) 200~
2500mm, chord length M are 50~300mm, and established angle (α) is 2 °~16 °.Generated output 5000~20000W wind-driven generator wooden core
Blade: long (L) 2000~5000mm of outer dimension, chord length (M) are 200~1000mm, and established angle (α) is 2 °~16 °.
Its main body aerofoil section is by mechanical Milling Process one-pass molding:
Firstly, designing the blade for meeting aerofoil section requirement according to design theory, built using Pro/E 3 d modeling software
The three-dimensional entity model of vertical blade carries out machining simulation using Mastercam Numerical Control Simulation software and generates numerical control code, then
Numerical control code is transmitted to numerical control machining center.Raw material is placed on dedicated three-dimension numerical controlled milling machine, along its length by input
Aerofoil section program place, by negative pressure of vacuum be attracted on the table, the face first milling A, process of the present invention can simultaneous processing 3
~5 blades；
Secondly, the face milling B: ibid, firstly, designing the blade for meeting aerofoil section requirement according to design theory, utilizing
Pro/E 3 d modeling software establishes the three-dimensional entity model of blade, carries out machining simulation using Mastercam Numerical Control Simulation software
And numerical control code is generated, numerical control code is then transmitted to numerical control machining center.The face A semi-finished product blade is crossed into milling and is placed on spill
On A face mould tool, it is pull-in on mold by negative pressure of vacuum, the face milling B；
The covering, by being put down without alkali twill S- glass fabric, with a thickness of δ=0.1mm without alkali with a thickness of δ=0.14mm
Line S- glass fibre composition.It is specific as follows through in wooden core blade surface continuous-winding forming:
A. first in wooden core blade blank surface brush protection materials, protection materials press 1: 3 weight by curing agent and epoxy resin
Than composition；
B. intersected without alkali twill S- glass fabric by 45 ° of directions with thickness δ=0.14mm and glue 2~3 layers, root of blade is viscous
3~4 layers；
C. again with thickness δ=0.1mm without alkali plain weave glass fiber cloth continuous winding blade paste 1~2 layer, every layer first brush it is even
Protection materials, protection materials are made of curing agent and epoxy resin by 1: 7 weight ratio, in forming process, by 0 °, 90 ° and ±
45 ° of direction is continuously alternately laid with glass fabric；Then, the blade glued is hung on special fixture and is dried, through dry
Repairing type is carried out after dry and removes extra selvedge, finally with angle grinder polishing blade until smooth；
The connecting hole is located at root of blade, acts through bolt and blade is connected with motor, the connecting hole is
It is made of Special drilling jig；
A kind of small-sized wind power generator wooden core glass-fibre blade advantage of the utility model is: 1. leaf weights are light, make
It is long with the service life.Due to select S- diameter braided fabric glass fibre, it is ensured that radial fiber is in straight configuration, in stress not by
Shear action, to play the efficiency of reinforcing fiber to greatest extent；And in forming process, glass fibre by 0 °, 90 ° and ±
45 ° of directions replace continuous winding, can bear torque and shearing, more enhance blade strength and rigidity, guarantee layer of cloth at runtime
It does not crack, blade runs smoothly, it is demonstrated experimentally that its strength and stiffness is higher than polystyrene blade；2. molding is easy.Processing and manufacturing
Process is easy, invests small, saving molding complicated procedures of forming and time, compared with fiberglass blade manufacture craft, in present invention reduction
The modeling of lower mold, molding, coating release agent, from level to level sticking glass fabric, installation foam core, up and down molding, heat-shaping
Etc. processes, greatly reduce various tooling devices and investment, accelerate the leaf production duration, improve productivity；3. using CNC milling machine
It being processed and formed at one time by aerofoil section, shaping efficiency is high, is easy to guarantee product quality, and rejection rate is low, and it is cheap, effectively drop
Low wind-driven generator is fabricated to this；4. glass fibre (GF) is widely used reinforcing material on fan blade.The present invention uses
S- glass fibre, cost is relatively low, matches with existing resin well, technical maturity, improved S- glass fibre ratio E- glass
Fiber has higher intensity and modulus, has good development prospect；5. wooden core blade is the ep-type material being easily recycled, with
Polyurethane core, polystyrene core are compared, and do not generate pollution, are high-volume industrialization production materials the most environmentally friendly；6. this is practical
It is novel to be applied in the various middle-size and small-size blade of wind-driven generator production of 50W~20000W.
Detailed description of the invention
A kind of small-sized wind power generator wooden core glass-fibre blade main view of Fig. 1.
A kind of small-sized wind power generator wooden core glass-fibre blade side view of Fig. 2.
A kind of wing schematic diagram in small-sized wind power generator wooden core glass-fibre blade section of Fig. 3.
Fig. 4 wooden core glass-fibre blade structural schematic diagram (F-F is the face A and B interface in figure).
A kind of small-sized wind power generator wooden core glass-fibre blade established angle schematic diagram of Fig. 5.
Marginal data
1 wooden core blade, 2 covering, 3 connecting hole, 4 root
V speed of incoming flow α established angle θ angle of attack dL lift dD resistance d resultant force Ω impeller shaft P impeller Plane of rotation
Specific embodiment
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, right with reference to the accompanying drawing
The utility model does one and elaborates, so that the advantages of the utility model and feature is easier to be readily appreciated by one skilled in the art, from
And the protection scope of the utility model is made and is more specifically defined.
As shown in Figure 1, Figure 2, Figure 4 shows, the technical problems to be solved in the utility model with flowering structure by being realized: a kind of Miniature wind
Power generator wooden core glass-fibre blade is mainly made of wooden core blade 1, covering 2.
The wooden core blade 1 is made of pinus sylvestris var. mongolica plate adhesion raw material.
Timber sorting: selected first-class pinus sylvestris var. mongolica plate adhesion makees raw material, it is desirable that each knot diameter on plate is less than
2cm, crack length are no more than 10cm；Raw material is first dried through high steam, it is desirable that moisture content of finished products is less than 10%；
By taking 5000W wind-driven generator wooden core blade as an example, as shown in Fig. 3, Fig. 5 and table 1- table 6, wooden core blade is aerofoil profile leaf
Piece, the wooden core blade obtain each section foline data, calculate the major parameters such as chord length and established angle, are then based on coordinate a little
Geometric transformation find out each section of blade in the three-dimensional coordinate of space physical location, blade is finally completed by 3D modeling theory based on
Calculation machine 3D draws.Its main body A-A, each aerofoil section size of B-B, C-C, D-D, E-E are as shown in the following chart, primary by numerically-controlled machine tool
Milling Process molding:
Table 5
Table 6
| Section | A-A | B-B | C-C | D-D | E-E |
| Chord length (M) | 125 | 170 | 205 | 241 | 280 |
| Established angle (α) | 2° | 4° | 7° | 8.6° | 10.5° |
Firstly, the face A of milling wooden core blade 1: design theory designs the leaf for meeting aerofoil section requirement according to Fig.3,
Piece establishes the three-dimensional entity model of blade using Pro/E 3 d modeling software, is carried out using Mastercam Numerical Control Simulation software
Machining simulation simultaneously generates numerical control code, and numerical control code is then transmitted to numerical control machining center.Raw material is placed on dedicated three-dimensional
It on CNC milling machine, is placed along its length by the airfoil program of input, first milling on the table is attracted by negative pressure of vacuum
The face A, process of the present invention can 3~5 blades of simultaneous processing；
Secondly, the face B of milling wooden core blade 1: ibid, meeting aerofoil section requirement firstly, designing according to design theory
Blade, the three-dimensional entity model of blade is established using Pro/E 3 d modeling software, utilizes Mastercam Numerical Control Simulation software
It carries out machining simulation and generates numerical control code, numerical control code is then transmitted to numerical control machining center.The face A semi-finished product are crossed into milling
Blade is placed on spill A face mould tool, is pull-in on mold by negative pressure of vacuum, the face milling B；
The covering 2, by being put down without alkali twill S- glass fabric, with a thickness of δ=0.1mm without alkali with a thickness of δ=0.14mm
Line S- glass fabric composition.It is specific as follows through in wooden core blade surface continuous-winding forming:
A. first in 1 blank surface brush protection materials of wooden core blade, protection materials press 1: 3 weight by curing agent and epoxy resin
Amount is than composition；
B. intersect 2 layers viscous, root of blade 4 viscous 3 by 45 ° of directions without alkali twill S- glass fabric with thickness δ=0.14mm
Layer；
C. 1~2 layer is pasted without alkali plain weave S- glass fabric continuous winding blade with thickness δ=0.1mm again, every layer is first brushed
Even protection materials, protection materials are made of curing agent and epoxy resin by 1: 7 weight ratio, in forming process, by 0 °, 90 ° and
± 45 ° of direction is continuously alternately laid with glass fabric；Then, the blade glued is hung on special fixture and is dried, passed through
Repairing type is carried out after drying and removes extra selvedge, finally with angle grinder polishing blade until smooth；Two-component epoxy white paint is sprayed again
And it is dry.
As shown in Figure 1, the connecting hole 3: being located at root of blade 4, and drilled with Special drilling jig.
Claims (4)
1. a kind of small-sized wind power generator wooden core glass-fibre blade, 50~5000W of generated output and generated output 5000~
The wind-driven generator wooden core blade of 20000W, wooden core glass-fibre blade and covering made of plate adhesion raw material form,
It is characterized in that:
50~5000W of generated output wind-driven generator wooden core blade profile size a length of L200~2500mm, chord length M are 50
~300mm, established angle α are 2 °~16 °；
5000~20000W of generated output wind-driven generator wooden core blade profile size a length of L2000~5000mm, chord length M
It is 2 °~16 ° for 200~1000mm, established angle α；
The covering by with a thickness of δ=0.14mm without alkali twill S- glass fabric and with a thickness of δ=0.1mm without alkali plain weave S- glass
Glass fiber is passed through to be formed in wooden core blade surface continuous winding.
2. a kind of small-sized wind power generator wooden core glass-fibre blade as described in claim 1, it is characterised in that: the wooden core
Brush even protection materials in blade blank surface.
3. a kind of small-sized wind power generator wooden core glass-fibre blade as described in claim 1, it is characterised in that: the wooden core
Blade cures agent epoxy resin surface successively intersect viscous 2~4 layers with a thickness of δ=0.14mm without alkali twill S- glass fabric and
Continuous winding is pasted with a thickness of 2~3 layers of δ=0.1mm without alkali plain weave S- glass fabric, brushes even protection materials between every layer.
4. a kind of small-sized wind power generator wooden core glass-fibre blade as described in claim 1, it is characterised in that: the wooden core
Knot diameter on blade sorting plate is less than 2cm, and crack length is no more than 10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821326221.8U CN209228526U (en) | 2018-08-15 | 2018-08-15 | A kind of small-sized wind power generator wooden core glass-fibre blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821326221.8U CN209228526U (en) | 2018-08-15 | 2018-08-15 | A kind of small-sized wind power generator wooden core glass-fibre blade |
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| Publication Number | Publication Date |
|---|---|
| CN209228526U true CN209228526U (en) | 2019-08-09 |
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ID=67497717
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821326221.8U Active CN209228526U (en) | 2018-08-15 | 2018-08-15 | A kind of small-sized wind power generator wooden core glass-fibre blade |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496381A (en) * | 2020-11-13 | 2021-03-16 | 安徽朗迪叶轮机械有限公司 | Multifunctional processing equipment for fan blade production |
| CN115534043A (en) * | 2022-08-26 | 2022-12-30 | 呼和浩特市博洋可再生能源有限责任公司 | Manufacturing process of small wind driven generator blade |
-
2018
- 2018-08-15 CN CN201821326221.8U patent/CN209228526U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496381A (en) * | 2020-11-13 | 2021-03-16 | 安徽朗迪叶轮机械有限公司 | Multifunctional processing equipment for fan blade production |
| CN112496381B (en) * | 2020-11-13 | 2022-02-22 | 安徽朗迪叶轮机械有限公司 | Multifunctional processing equipment for fan blade production |
| CN115534043A (en) * | 2022-08-26 | 2022-12-30 | 呼和浩特市博洋可再生能源有限责任公司 | Manufacturing process of small wind driven generator blade |
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