CN205977533U - Blade subassembly and rotor and wind power installation and power generating equipment of variable propeller pitch angle - Google Patents
Blade subassembly and rotor and wind power installation and power generating equipment of variable propeller pitch angle Download PDFInfo
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- CN205977533U CN205977533U CN201620436569.7U CN201620436569U CN205977533U CN 205977533 U CN205977533 U CN 205977533U CN 201620436569 U CN201620436569 U CN 201620436569U CN 205977533 U CN205977533 U CN 205977533U
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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
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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
- Y02E10/728—Onshore wind turbines
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Abstract
The utility model provides a blade subassembly and rotor and wind power installation and power generating equipment of variable propeller pitch angle, the blade subassembly of the variable propeller pitch angle of concretely relates to, include: the blade that has a plurality of blade sections, two at least adjacent blade sections can be rotated in order to change its propeller pitch angle relatively each other, with feather guide mechanism, including fixed extend the guide rail to the circumference of one of two adjacent blade sections of pivoted relatively each other and fix extremely relatively each other two adjacent blade sections of pivoted in another one or more guiding piece, wherein the one or more guiding piece is constructed by the guide motion on the guide rail.
Description
Technical field
The utility model belongs to wind power installation, particularly field of wind power equipment, is related to one kind particularly trunnion axis wind
The multisection type rotor blade of power generator and the manufacture method of blade.The utility model further relate to have this blade rotor and
There is wind-force, ocean current and the tidal current generation equipment of this rotor.
Background technology
Wind energy is the regenerative resource of cleaning, fast-developing in recent years.The regenerative resource of cleaning is wanted and conventional energy resource
(coal, oil, natural gas and big-and-middle-sized water power) competes, and reduces cost improves its operational efficiency extremely important.Wind-force is sent out
Electric unit cost reduces with the increase of the single-machine capacity of wind-power electricity generation.Large-scale horizontal axis wind-driven generator manufacture, install and
Cost advantage is had more during operation.Global Wind Power Industry machine develops to high-power, linear leaf direction further at present.
For large-scale blade, the weight of blade and rigidity also become subject matter.Improve the strength and stiffness of large-scale blade,
Mitigate the weight of blade simultaneously, reduce the cost of blade, be that current Wind Power Development needs the urgent problem solving.
Large-scale blade presses full-scale production it is difficult to transport, also increasingly becomes a bottleneck of restriction Wind Power Development.For
Following possible larger sized fan blade, the long-distance transportation of full-scale blade will be more difficult.
The blade of horizontal axis wind-driven generator is around trunnion axis rotary motion, along the line of length of blade direction different cross section
Speed is different, the fastest at blade tip, by the slowest at blade root.For same wind speed, at blade tip, relative wind velocity and wind wheel are put down
Face angle is minimum, relative wind velocity and wind wheel plane included angle maximum at blade root, in order that each section of blade can be operated in optimal
The angle of attack, blade typically all makes torsion.Generally, from root to tip, torsional angle is 10-20 °.As seen in figure la and lb, show
A kind of example blade aerofoil profile chord change and reverse schematic diagram.Wherein Fig. 1 a generally shows the lateral plan of blade, and
Fig. 1 b respectively illustrates along the multiple viewgraph of cross-section intercepting generally perpendicular to its longitudinal axis, and these cross sections are in blade
Different lengthwise position, as intercepted at blade tip, leaf central part or blade root.S1-S6 shows that the aerofoil profile of tip segment, S7 show
The aerofoil profile of transition portion between blade tip and leaf central part, S8-S12 show the aerofoil profile of leaf central part, S13 show leaf central part and
The aerofoil profile of the transition portion between blade root, S14-S21 show leaf central part to the aerofoil profile of blade root, thus in blade not
It is illustrated with the different leaves torsional angle at lengthwise position.
At present, the commonly used variable pitch control technology of large-scale horizontal axis wind-driven generator.Generally, propeller pitch angle refers to blade
The most advanced and sophisticated aerofoil profile string of a musical instrument and the angle of wind wheeling rotor Plane of rotation.When running into extreme wind speeds, rotatably whole blade with attempt by
It is adjusted to state with the wind.The major section string of a musical instrument of blade is parallel with wind direction, referred to as full full feathering state, and now blade front face area is
Little, blade and wind energy conversion system wind-engaging power effect greatly reduce.But, typically all it is formed with installation when prior art blade manufactures and turn round
Angle is so that the installation torsional angle at by blade root is maximum.In this case, at present to large-scale blade variable pitch control, can not
Whole blade profile strings of a musical instrument can be made all in the full full feathering state of parallel with wind direction (positive propeller pitch angle is 90 ° of degree), the local of blade
Larger load may be still subject to wind energy conversion system.
Additionally, the blade of each sectional position of prior art blade installs torsional angle, typically have by rated wind speed lower blade
The optimal angle of attack calculates.For being not under the wind speed of rated wind speed, to whole blade adjustments blade pitch angle it is simply that
One unified blade pitch angle is increased and decreased to each blade longitudinal cross-section position of blade, is difficult to obtain each sectional position blade
The optimal angle of attack.
Prior art is had to propose blade of wind-driven generator is carried out with the variable pitch control method of segmentation.
Chinese patent notification number CN102628423B is related to a kind of blade-section feather wind turbine, and extreme
The method of control section feather wind turbine blade under wind regime.Wind turbine blade includes the first blade sections and the second leaf
Fragment, the second blade sections can be with respect to the first blade sections pitching.Preferably, the first blade sections control for stall blade sections, i.e.
Fixed, the second blade sections are pitch control.Under extreme wind regime, first the second blade sections are rotated in feather position, then make
Second blade sections are positioned with generally normal propeller pitch angle with respect to the first blade sections and lock, to reduce the size of extreme load.
The surface area of described first blade sections is essentially equal to the surface area of described second blade sections so that by oncoming wind in institute
State compared with the power that the power producing in the second blade sections is produced in described first blade sections with it, size is generally equalized, but direction
Upper orthogonal, so that the force vector acting on the synthesis in wind turbine structure minimizes.
In the wind turbine of above-mentioned CN102628423B, in normal operation, can only be to the second blade sections feather
Angle, so can not optimize the operational efficiency of wind energy effectively.Even if in addition, the surface area of the first and second blade sections is identical,
Do not ensure that the power producing in this two blade sections is generally equalized, and the first blade sections and the second blade sections be generally normal,
Nor guarantee generally normal, thus differ surely to make to act on wind turbine on the force direction of generation in this two blade sections
The force vector of the synthesis in machine structure minimizes.
Additionally, in the blade of the wind turbine of above-mentioned CN102628423B, the first blade sections and the second blade sections it
Between interface become the weak section of whole blade because of the installation of pitch-variable system, there is no connection reinforcing device it is difficult to meet
The strength and stiffness of opposing extreme loads require.
U.S. Patent Application Publication No. No.2009/0148285 and 2009/0148291 is related to a kind of multisection type blade-section
Feather wind turbine, its blade has hub extension and fairing.Under extreme wind regime, the outboard blade segment of blade becomes
Pitch keeps fixing to feather position, the inner blade section having fairing.
Wind according to above-mentioned U.S. Patent Application Publication No. No.2009/0148285 and 2009/0148291 patented technology
Power turbine, because inner blade section keeps fixing, this section of blade is unable to feather to feather position, so can not make in pole
Load minimizing on whole blade under the wind regime of end.In addition, blade only leans on pitch-variable system to connect, there is no connection reinforcing device,
The strength and stiffness being difficult to meet opposing extreme loads require.
Accordingly, it is desirable to provide a kind of blade of the multisection type can with high intensity and rigidity, and it can be effectively and efficient
Ground conversion pitch.
Utility model content
Task of the present utility model is to provide a kind of blade of the variablepiston of multisection type.
According to a scheme of the present utility model, provide a kind of blade assembly of variable oar elongation, including：There are multiple leaves
The blade of fragment, at least two adjacent blade segment can be rotated relative to one another to change its propeller pitch angle；With feather guiding mechanism, wrap
Include the circumferentially extending guide rail being fixed to one of two adjacent blade segment that can be rotated relative to one another and be fixed to and can turn relative to each other
Another one or more guiding pieces in two dynamic adjacent blade segment, wherein said one or more guiding pieces are configured to
Connect to described guide rail and be directed motion on described guide rail.
By means of the feather guiding mechanism of outside setting, enable effective between blade sections and efficient pitch conversion.
Additionally, set feather guiding mechanism additionally provides the possibility as other functions element.In this practicality
In a new embodiment, at least one feather guiding mechanism is also configured to for can connect two neighboring blade with carrying
The bindiny mechanism of section, and do not affect relatively rotating between this two blade sections.In other words, carried according to the utility model embodiment
The connecting bracket being fixed to blade at least one and extending longitudinally across one section of span along blade, it can be used as according to this practicality
The feather guiding mechanism of new embodiment.According in embodiment of the present utility model, this guide and carry difunctional
Mechanism can not only advantageously provide effective and efficient pitch conversion, but also reduce or eliminate setting feather function and make
The situation carrying weakness at the blade sections joint interface becoming.
According to an embodiment, interface that blade assembly also includes being arranged between at least two adjacent blade segment
Feather actuating mechanism.
According to an embodiment, described feather actuating mechanism includes the driver being arranged in blade and feather axle
Hold.
According to an embodiment, described feather guiding mechanism includes multiple circumferentially spaced guiding pieces.
According to an embodiment, described guiding piece includes along the rolling member of described guide rail rolling and/or slides along described guide rail
Dynamic sliding part.
According to an embodiment, described guiding piece includes a pair rolling rolling respectively along the top surface of described guide rail and bottom surface
Part.By this to rolling member, circumferentially guide rail, to rolling, also provides rolling member with respect to guide rail along blade not only to provide rolling member
The constraint of lengthwise movement, to provide the bearing-type between two blade sections to connect.
According to an embodiment, described rolling member includes rolling bearing.
According to an embodiment, described feather guiding mechanism is also included for guide rail is fixedly attached to the first of blade
Supporting leg and the second supporting leg for described guiding piece being fixed to blade.
According to an embodiment, described feather guiding mechanism also includes extending longitudinally across the company of one section of span along blade
Connect element, the first end of described connecting element is fixed to the second supporting leg, and the second end arranges described guiding piece.
According to an embodiment, described guide rail is in the annular circumferentially around described blade.According to another embodiment, permissible
The guide rail of one or more arc section forms circumferentially is set.
Preferably, described feather guiding mechanism at least partly, preferably all by high intensity, high-modulus, low density material,
Such as carbon fibre composite etc. is made.The high intensity of this offer weight loss effect and blade and rigidity.
According to an embodiment, described blade assembly also includes at least one elongated blade stiffeners, wherein, described
Blade stiffeners are configured at least one end and connect to described feather guiding mechanism.Feather guiding mechanism and elongated blade add
Strong part not only increases the rigidity of this blade sections, but also can beneficially improve the rigidity of whole blade.
According to an embodiment, described feather actuating mechanism is arranged on blade exterior.
According to another program of the present utility model, provide a kind of blade assembly of variable oar elongation, including：There are multiple leaves
The blade of fragment, at least two adjacent blade segment can be rotated relative to one another to change its propeller pitch angle；Be fixed to blade and along leaf
Piece extends longitudinally across the connecting bracket of one section of span；Connecting bracket described at least one of which is also configured for use as being fixed to can phase
Feather guiding mechanism to two adjacent blade segment rotating each other, described feather guiding mechanism includes being fixed to described two
At least one first supporting leg of one of individual adjacent blade segment, it is fixed to another at least one in described two adjacent blade segment
Individual second supporting leg, all direction guiding rails being fixed at least one the first supporting leg described and connecting element, the first of described connecting element
End is fixed to the second supporting leg, and the second end is provided with and rolls the rolling member engaging described guide rail.
According in embodiment of the present utility model, this guiding and the dual-functioning mechanism carrying can not only advantageously carry
For the conversion of effective and efficient pitch, but also reduce or eliminate at the blade sections joint interface that setting feather function causes
Carry weak situation.
Preferably, described connecting bracket and/or feather guiding mechanism be by high intensity, high-modulus, low density material, for example
Carbon fiber etc. is made.The high intensity of this offer weight loss effect and blade and rigidity.
According to an embodiment, described blade assembly also includes at least one elongated blade stiffeners, wherein, described
Blade stiffeners are configured at least one end and connect to described connecting bracket to be opened with described spacing with blades.Preferably, described blade
Reinforcement is made up of high intensity, high-modulus, low density material, such as carbon fiber etc..This provides the high-strength of weight loss effect and blade
Degree and rigidity.
According to an embodiment, on the first side that described blade assembly also includes be arranged on blade at least one first
Blade stiffeners and at least one second blade stiffeners being arranged on the second contrary side of blade, wherein, described first
It is configured at least one end with the second blade stiffeners to connect to described feather guiding mechanism.
According to an embodiment, described first and second blade stiffeners are symmetrical arranged with regard to blade.
According to preferred embodiment, described blade include blade root section, one or more intermediate blade section and blade tip section or by
It is constituted.Preferably, described blade assembly includes the first connecting bracket as feather guiding mechanism and the second connecting bracket,
Along longitudinally bridging blade root section and intermediate blade section, the second connecting bracket bridges intermediate blade section and leaf along longitudinal to first connecting bracket
Apical segment.It is highly preferred that also including the 3rd connecting bracket away from intermediate blade section one end (as blade root) being arranged in blade root section.
Preferably, one or more blade stiffeners connect the first and second connecting brackets, and/or, one or many
Individual blade stiffeners connect second support at one end, and the other end is connected in blade tip section, the centre position of such as blade tip section, and/
Or, one or more blade stiffeners connect the first connecting bracket at one end, and the other end connects the 3rd support or directly connects
Be connected in blade root section, such as in blade root section away from the one end in leaf stage casing.
According to another program of the present utility model, provide a kind of rotor, including hub, connect to described hub according to this practicality
Multiple blade assemblies of new embodiment, the blade of described blade assembly includes blade root section.Preferably, blade include blade root section,
Intermediate blade section and blade tip section or be made up of it.
According to another program of the present utility model, provide a kind of wind power installation, including according to the utility model embodiment
Rotor.
According to another program of the present utility model, provide a kind of generating equipment, including according to the utility model embodiment
Rotor, described generating equipment is wind power plant, ocean current generating equipment or tidal current generation equipment.
According to another program of the present utility model, provide the variable propeller pitch device that blade is intersegmental, including feather actuating mechanism
With feather guiding mechanism.
According to the utility model another program, the manufacturer providing a kind of blade assembly or there is the rotor of this blade assembly
Method.
According to another program of the present utility model, provide a kind of method of the propeller pitch angle controlling blade.
A part for other features and advantages of the utility model would is that those skilled in the art after reading the application
Obvious, another part will be described in conjunction with the accompanying in specific embodiment below.
Brief description
Hereinafter, to describe embodiment of the present utility model in detail in conjunction with accompanying drawing, wherein：
Fig. 1 a and Fig. 1 b is a kind of example blade aerofoil profile chord change and reverses schematic diagram；
Fig. 2 is a kind of cross-sectional structure schematic diagram of example blade；
Fig. 3 shows the stereogram of the blade assembly according to an embodiment of the present utility model；
Fig. 4 is the partial enlarged drawing of the blade assembly of Fig. 3, shows the connecting bracket between blade sections and blade sections；
Fig. 5 is the partial enlarged drawing of the blade assembly of Fig. 3, shows the company of the connecting bracket between blade sections and blade sections
Connect, and the feather rotation of two blade sections；
Fig. 6 shows the blade assembly blade state at higher wind speeds of the embodiment of Fig. 3；
Fig. 7 is the partial enlarged drawing of the blade assembly of Fig. 6, shows the company of the connecting bracket between blade sections and blade sections
Connect, and two blade sections all feathers are rotated into feathering (90 °)；
Fig. 8 shows the blade assembly of the embodiment of Fig. 3；
Fig. 8 a shows the partial enlarged drawing of Fig. 8；
Fig. 9 shows the stereogram of the blade assembly according to another embodiment of the present utility model；
Fig. 9 a and 9b shows the partial enlarged drawing of Fig. 9；
Figure 10 a and 10b shows the stereogram of the blade assembly according to another embodiment of the present utility model；
Figure 10 c and 10d shows the partial enlarged drawing of Figure 10 b；
Figure 11 shows the stereogram of the blade assembly according to another embodiment of the present utility model；
Figure 11 a and 11b shows the partial enlarged drawing of Figure 11；
Figure 12 shows the stereogram of the blade assembly according to another embodiment of the present utility model；
Figure 13 a and 13b is provided in the signal of the blade sections feather actuating mechanism at interface between in blade, blade sections
Figure.
In the utility model, same or analogous reference represents same or analogous element or feature.
Specific embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, now compare brief description
Specific embodiment of the present utility model.Although providing accompanying drawing to be to assume some embodiments of the present utility model, attached
Figure need not by specific embodiments size draw, and some features can be exaggerated, remove or cutting with more preferably illustrate conciliate
Release disclosure of the present utility model.The phrase " in the accompanying drawings " occurring in the description or similar term need not be with reference to all attached
Figure or example.
In the description be used for describe accompanying drawing some directional terminology, for example " on ", D score, "left", "right", " to
On ", " downward " and other directional terminology be it will accordingly be understood that for having its normal implication and criticizing involved when often seeing respective drawings
And those directions, this should not be construed as the concrete restriction of the technical scheme to claims.
Term " about " in the utility model or " about " will be understood by those of ordinary skill in the art and by basis
The context using this term changes within the specific limits.
Description, description according to the multisection type for wind power plant rotor of the present utility model and/or is reinforced
The embodiment of blade assembly.According in embodiment of the present utility model, this blade assembly is used for wind power plant, such as level
Axis wind power generator, preferably large-scale horizontal axis wind-driven generator.However, it is contemplated that according to blade assembly of the present utility model
Can be used for the suitable applications occasion of any use blade, for example other types of wind power installation, ocean current and tidal power generating set
Standby.
Although not shown, exemplary wind power plant for example includes blower fan and generator.Blower fan can include having
Hub 6 and the rotor of multiple blade, preferably the plurality of blade is evenly spaced arrangement around the circumference of hub.According to the utility model
Embodiment, at least one of the plurality of blade, the blade group being preferably all configured to according to the utility model embodiment
Part 10, wherein blade assembly are segmenteds and have multiple blade sections, and the adjacent blade sections of at least two of which can be relatively
Rotate each other to be configured to change the propeller pitch angle of blade sections.According to the blade assembly of the utility model embodiment can also overall around
Blade longitudinally opposed in hub rotation, such as blade is integrally variablepiston.In one embodiment, it is provided with for making blade root
Section or the overall blade root variable propeller pitch device rotating around the blade longitudinal axis with respect to hub of blade.
According to an embodiment, one or more, the preferably whole blade sections according to blade assembly of the present utility model are not
Only can rotate with respect to hub, also can rotate relative to other blade sections, thus the blade assembly of this embodiment can be integrally with respect to hub
Feather, also can between blade sections feather.According to an embodiment of the present utility model, blade assembly may include between blade
Variable propeller pitch device, including the intersegmental feather guiding mechanism of feather actuating mechanism and blade, this will be described below.
According to an embodiment of the present utility model, blade assembly may include the connection that at least one connects two blade sections
Support, this will be described below.According to an embodiment of the present utility model, the intersegmental change of at least one blade of blade assembly
Pitch guiding mechanism is configured to bindiny mechanism, or in turn.In other words, according to this embodiment of the present utility model, provide tool
There are the connecting bracket for connecting two blade sections and the feather guiding mechanism relatively rotating pair guiding this two blade sections
The mechanism of function.However, it is contemplated that according in other embodiment of the present utility model, can be with the intersegmental company of all or part of blade
Connect support and/or feather guiding mechanism only has simple function, is such as used only as feather guiding or is used only as bearer connection.
As is known and be not shown, wind energy conversion system can also include the cabin for rotatably supporting rotor and supporting institute
State the pylon of cabin.Preferably, cabin rotatably supports hub or the rotating shaft (not shown) of rotor, thus the rotation of rotor is permissible
For example generator is driven to carry out wind-power electricity generation by means of the transmission mechanism being accommodated in cabin.In the utility model, cabin
Construction with pylon is not crucial, does not therefore repeat.Additionally, can also according to blade assembly of the present utility model and rotor
It is correspondingly applied to the wind power plant of other constructions, for example, there are no cabin and/or pylon those.
The illustrative examples of blade 100 according to of the present utility model blade assembly 10 are specifically described below.
According to the blade 100 of the utility model embodiment, for example, can construct as Fig. 2, including blade enclosure 2 and quilt
The girder construction 3 of blade enclosure 2 cladding.As it was previously stated, in an illustrated embodiment, girder construction 3 may include a pair of girder 4 and shearing resistance
Cut web 5.As it was previously stated, blade in the embodiment shown, such as blade enclosure 2 and girder construction 3 can be multiple by glass fibre
Condensation material is made.It will be apparent to one skilled in the art that can be using different blades according to the blade of the utility model embodiment
Construction, material and shape.It is, for example possible to use having different girder constructions, vane airfoil profile profile.For example, blade enclosure and beam
Structure is made from a different material, or the material of blade enclosure is different from the material of girder construction.According to enforcement of the present utility model
In example, each blade sections can have respective girder construction and blade enclosure.It is contemplated that only some blade sections has beam knot
Structure, this falls in the scope of invention.
Fig. 3 shows the blade 100 of the blade assembly 10 of the utility model embodiment.Blade 100 can include multiple leaves
Fragment, in an illustrated embodiment, including three blade sections, i.e. the first blade sections blade root section 101, the second blade sections in other words
Intermediate blade section 102, third blade section blade tip section 103 in other words in other words.Those skilled in the art are it will be appreciated that blade 100
May include more or less than three sections of blade sections, this falls in the scope of invention.For example, in one embodiment, leaf packet
Include blade root section, blade tip section and more than one intermediate blade section.In another embodiment, blade only has blade root section and blade tip
Section.
As shown in figure 3, in the illustrated embodiment, blade assembly 10 includes the intersegmental feather vectoring aircraft of multiple blades
Structure, includes two feather guiding mechanisms 51,52 in an illustrated embodiment.In the embodiment illustrated, described feather
Guiding mechanism 51,52 is also configured to be the connecting bracket for carrying connecting adjacent blade segment.For example, the reality shown in Fig. 3
Apply in example, feather guiding mechanism 51 can construct as the first connecting bracket, and feather guiding mechanism 52 can construct as second
Connecting bracket.Therefore, this embodiment hereinafter and other embodiments, guide and the bifunctional device of connection for having,
Term " feather guiding mechanism " and " connecting bracket " may be used in mixed way.However, it is contemplated that can provide one or more not
There is connection, such as the feather guiding mechanism of bearer connection and/or the connecting bracket, as mentioned below without guiding function
Connecting bracket 11.Their any enforceable combination, all falls in scope of the present utility model.
In an illustrated embodiment, feather guiding mechanism (connecting bracket) 51,52 can extend longitudinally across one along blade
Section span, to bridge the adjacent blade segment of blade 100.Specifically, feather guiding mechanism 51 connects blade sections (blade root section) 101
With blade sections (intermediate blade section) 102, feather guiding mechanism 52 connection blade sections (intermediate blade section) 102 and blade sections (leaf
Apical segment) 103.In an illustrated embodiment, the adjacent blade sections of each pair are equipped with feather guiding mechanism.But people can think
Arrive, blade assembly may include more or less feather guiding mechanism.
Feather guiding mechanism 51,52 may include guide rail circumferentially, preferred ring-shaped guide rail, and along this guide rail quilt
The guiding piece of guiding.
Described feather guiding mechanism (connecting bracket) can have various shapes and/or construction, and still enables to guide
The propeller pitch angle of blade sections changes and/or bearer connection.
Will be described a specific embodiment of feather guiding mechanism below.
Fig. 4 shows the embodiment according to feather guiding mechanism 51,52 of the present utility model.Feather guiding mechanism
51st, 52 may include and be fixed to the first supporting part 61 of one of described two adjacent blade segment, be fixed to described two adjacent blades
Another multiple second supporting parts 62 and the connecting portion 63 connecting the first and second supporting parts in section.
In an illustrated embodiment, described first supporting part 61 may include the first supporting leg 611 extending from blade radial
Be fixed to the circumferentially extending guide rail 612 of the first supporting leg, here is round ring guide.First supporting part 61 may also include possibility
The reinforcing support member (not shown) needing.In an illustrated embodiment, four the first supporting legs 611 can be provided with, such as two to footpath respectively
To the first opposed supporting leg, preferably each first supporting leg interval substantially 90 is spent.
In an illustrated embodiment, the second supporting part 62 may include the second supporting leg 621 extending from blade radial and
The reinforcing support member (not shown) that may need.In an illustrated embodiment, four the second supporting legs 621 can be provided with, such as two to point
Second supporting leg of other diametrically contraposition, preferably each second supporting leg interval substantially 90 is spent.
In an illustrated embodiment, connecting portion 63 include along blade longitudinally jump one section of span connecting element 631 and
Guiding piece 632, such as rolling member and/or sliding part, such as rolling bearing.The first end of described connecting element is fixed to the second supporting part
62 second supporting legs 621 in other words, the second end arranges described guiding piece 632, such as rolls the rolling member engaging guide rail.In shown reality
Apply in example, four connecting portions can be correspondingly provided with, such as two connecting portions to diametrically contraposition respectively, the second supporting leg being each connected to
621.
In shown embodiment, be provided with a pair be directed along the top surface of described guide rail and bottom surface respectively, the guiding of such as rolling
Part 632, such as rolling member, this to guiding piece clamp described guide rail, thus constrain the relative displacement in the vertical of two blade sections and/
Or transmission, carrying longitudinal loading.Shown guiding piece 632 can be in the form of rolling bearing.Although not shown, this rolling bearing example
As having interior axle bearing portion, outer shaft bearing portion and the rolling member being located between inside and outside bearing portion, such as ball.
By means of guiding piece 632 and guide rail 612, adjacent blade segment is connected in the way of bearing load and can rotate.Borrow
Help this guiding piece 632 and be connected securely to guide rail and being directed relative to it move, such as roll and/or slide, both enable leaf
Fragment connect additionally it is possible to the independence of realizing blade sections rotate in other words blade sections with respect to the change oar of another blade sections
Away from rotation.In the embodiment shown, the first and/or second supporting part and/or connecting portion or its part, such as guide rail 612, guiding
Part, the first supporting leg, the second supporting leg, connecting element, feather rotation axis is axle in other words can to press the longitudinal rotating shaft line of blade
The heart is arranged, blade sections are rotated with this axis for axle center feather.Although in an illustrated embodiment, as previously mentioned, showing
There is the feather guiding mechanism of guiding and bearer connection, but it is contemplated that in one embodiment, provide with guiding function
Feather guiding mechanism, and provide independent of this feather guiding mechanism for bearer connection mechanism, for example independent of
The connecting bracket of guiding mechanism.
With continued reference to Fig. 4, in the preferred embodiment shown, feather guiding mechanism (connecting bracket) can be in frame-like,
And preferably first and/or second supporting part and/or connecting portion totally all can in beam type framework construction.For example, feather vectoring aircraft
The shape of the general frame columnar structure of structure and connecting element is conducive to reducing the aerodynamic impact on blade, for example minimum
Wind transmission hinders.It will be obvious to those skilled in the art that feather guiding mechanism can be in other constructions or shape.
Fig. 5 shows that vane propeller-changing according to the utility model embodiment, away from guiding mechanism partial enlarged drawing, shows leaf
The connection away from guiding mechanism of fragment and vane propeller-changing, and blade sections rotate with respect to the feather of another blade sections.
The blade 100 of the utility model embodiment is overall can be done by the feather drive mechanism positioned at hub and the joint of root of blade
Feather angle rotates.In addition, adjacent blade sections can also do the rotation of feather angle relative to each other.In this embodiment, blade
The position at section feather actuating mechanism construction interface between in blade, blade sections.As Figure 13 a and Figure 13 b shows
The blade sections of setting at the position at interface between one blade sections, i.e. blade root section 101 and the second blade sections, i.e. intermediate blade section 102
Between feather actuating mechanism 16.In embodiment shown in Figure 13 a and Figure 13 b, this feather actuating mechanism 16 includes only showing
The feather motor 161 drawing to meaning property and pitch bearings 162.Pitch bearings 162 can be rotated with the longitudinal direction of blade
For axle center arrange in other words by feather rotation axis for axis.In an illustrated embodiment, feather motor 161 is arranged on down
In the blade root section 101 of side, and in the intermediate blade section 102 that pitch bearings 162 are mounted above.And, feather drives electricity
Machine 161 blade root section 101 from below is extended in intermediate blade section 102 to be engaged with pitch bearings 162.Although showing
The feather actuating mechanism of meaning property, but those skilled in the art is contemplated that different configuration and the setting of feather actuating mechanism
Position, including but not limited to：Feather motor 161 and pitch bearings 162 are arranged in turn, this feather actuating mechanism
It is arranged on that other blades are intersegmental, the replacement as motor or supplement and use other drivers, such as motor, such as hydraulic pressure horse
Reach, feather actuating mechanism or its part are arranged on other positions with respect to blade sections, such as outside blade sections, arrange multiple change oars
Away from actuating mechanism, and any feasible combination of features described above.
In an illustrated embodiment, blade can have different leaves torsional angle, such as Fig. 1 a and Fig. 1 b institute along its longitudinal axis
The example showing.But it may occur to persons skilled in the art that the other twist angle of blade configurations different from Fig. 1 a and Fig. 1 b.Although no
By the restriction of theory, in certain embodiments, for keeping blade to have the optimal geometry angle of attack, the blade of each blade sections is not along longitudinally
With there being different twist angle of blade at position.For example, in order that operationally each position of blade can be (logical under given wind speed
It is often rated wind speed) there is the optimal angle of attack, blade has been made generally in installation torsional angle, thus the torsional angle at by blade root is maximum,
At blade tip, torsional angle is minimum.According to an exemplary example, the wind energy conversion system of a radius about 40m, according to optimum operation wind speed it is
Design optimization value during 8m/s, torsional angle at different radii for its blade, it is respectively 0 ° -16 ° from blade tip at close to blade root.Logical
Often, propeller pitch angle refers to the angle of the vane tip aerofoil profile string of a musical instrument and wind wheeling rotor Plane of rotation.So, for shortage blade sections
The prior art that feather is adjusted is it is impossible to make the aerofoil profile string of a musical instrument and the wind wheeling rotor Plane of rotation of whole blades under extreme wind regime
The full feathering state that angle is 90 ° all in positive propeller pitch angle.In context of the present utility model, unless otherwise specified, propeller pitch angle
The aerofoil profile string of a musical instrument of blade and the angle of wind wheeling rotor Plane of rotation can be referred to.For example, for the propeller pitch angle of each blade sections, can refer to
The aerofoil profile string of a musical instrument at the medium position of this blade sections and the angle of wind wheeling rotor Plane of rotation.But it will be appreciated that, each blade
The propeller pitch angle of section, can be using the folder of the aerofoil profile string of a musical instrument of other reference position in this blade sections and wind wheeling rotor Plane of rotation
Angle.
Fig. 6 and Fig. 7 shows that (in Fig. 6, the direction of arrow of W is the reinforced blade assembly of the utility model under extreme wind regime
The direction of wind), whole blade sections are rotated in feather position (90 ° of propeller pitch angles).The example of radius 40m wind energy conversion system described above
Property example, the blade assembly 10 according to the utility model embodiment can be under extreme wind regime, first using positioned at hub and root of blade
The blade root variable propeller pitch device of joint does the rotation of whole lamina feather angle, blade root section is rotated together with rest blade section positive pitch
About 74 ° about of angle, because there being 16 ° about of installation torsional angle in the middle part of blade root section, thus the middle part aerofoil profile string of a musical instrument of blade root section 101 and wind wheel
The angle of rotor Plane of rotation is 90 ° of full feathering state.Then (or simultaneously) is using connecing with blade sections 102 positioned at blade sections 101
Variable propeller pitch device at conjunction, the positive pitch angular direction of blade sections 102 relative vane section 101 is rotated about 7 ° about, because this blade
There is 9 ° about of installations torsional angle at the middle part of section so that the middle part aerofoil profile string of a musical instrument of intermediate blade section 102 and wind wheeling rotor Plane of rotation
Angle be 90 ° of full feathering state.Subsequently (or simultaneously) using the feather dress between blade sections 102 and blade sections 103
Put, the positive pitch angular direction of blade sections 103 relative vane section 102 is rotated about 6 ° about, because there are 3 ° of left sides at the middle part of this blade sections
Right installation torsional angle is so that the middle part aerofoil profile string of a musical instrument of blade sections 103 and the angle of wind wheeling rotor Plane of rotation are 90 ° of feathering shape
State.If there are more blade sections, using same method, the middle part aerofoil profile string of a musical instrument of other blade sections is rotated with wind wheeling rotor
The angle adjustment of plane becomes 90 ° of full feathering state, and such whole lamina is substantially all in full feathering state.
Although construct, for example have the blade construction of concrete torsional angle above with reference to specific blade, describe to control blade
The embodiment of propeller pitch angle and related angle.However, it is contemplated that above concrete angle is not crucial, can be other one
In individual or multiple embodiment, using some or all different twist angle of blade and/or control or select some or all different
Blade sections propeller pitch angle.
In conjunction with Fig. 3-Fig. 7, the utility model also provides a kind of blade assembly, the rotor with this blade assembly or has this
The variable pitch control method of the wind energy conversion system of rotor.For example, variable pitch control is carried out to blade by computer, to ensure wind energy conversion system
Can be with the operation of peak efficiency safety.Control method according to the utility model embodiment can ensure that wind wheel blade starts shape
State, normal operating condition and/or shutdown full feathering state can have good feather angle function.Wind energy conversion system when static, propeller pitch angle
For 90 ° (all-cis wind)；When wind speed reaches starting wind velocity (incision wind speed), adjust blade pitch angle, make the blade of each blade sections
There is the optimal angle of attack in section, to obtain larger starting torque；When wind speed round reaches certain speed (usually rated wind speed
When) when, then adjust blade sections propeller pitch angle and go to 0 °.In normal operation, when power is below rated power, propeller pitch angle is at 0 °
Near；When power exceedes rated power, increase the angle of attack of blade according to computer command, and constantly adjust each blade sections pitch
Angle makes the power output of generator be maintained near rated power, and propeller pitch angle excursion is between 0 ° to certain angle；Work as wind
Speed is higher than cut-out wind speed, and now wind energy conversion system is no longer generated electricity, and each blade sections propeller pitch angle is adjusted at lift minimum；If forecasting it is
Exceed cut-out wind speed for a long time, then should start brake gear, make wind energy conversion system shutdown, whole blade sections be in full feathering state.Above-mentioned
Any or whole means can be optional as needed.
Thus, in the embodiment of the method for the propeller pitch angle of the control blade that the utility model provides, in principle, being related to can
Adjust ground Discrete control blade pitch angle, it is hereby achieved that being respectively directed to the optimized award setting of each blade sections, such as
The optimized angle of attack mentioned above or full feathering state.
Fig. 8 shows that the reinforced blade assembly of the utility model 1 adjusts the state of each blade sections at higher wind speeds.
Using the wind-driven generator of the blade assembly 1 of the utility model embodiment, wind energy turbine set maximum annual electricity generating capacity can be improved,
And optimize wind energy turbine set output power quality.
Fig. 9 shows according to another embodiment of the present utility model, and shows that blade sections are adjacent in Fig. 9 a and Fig. 9 b
Partial partial enlarged drawing.In the embodiment shown in fig. 9, each blade assembly 10 is on the side of blade, such as windward one
Side is additionally arranged (first) blade stiffeners 23 and 25.In an illustrated embodiment, blade stiffeners 23 are connected to feather guiding
Mechanism 51 and feather guiding mechanism 52, (lower end) is fixedly connected blade stiffeners 25 with feather guiding mechanism 52 at one end,
And in the other end (upper end) in blade middle and upper part correct position, such as tie point 14 and blade sections, blade tip section 103 be directly connected to.Excellent
Selection of land, calculates the correct position of tie point 14 according to the load of blade.For example, tie point is located at blade sections, i.e. blade tip section
Approximately longitudinally medium position.Described tie point is equivalent to and provides a fulcrum to blade sections 103.Blade sections so can be reduced
At 103 tie point 14 to feather guiding mechanism 52 blade moment of flexure, also just can reduce this section of girder of blade and shell
Thickness.By means of according to vane propeller-changing of the present utility model away from guiding mechanism 51 and 52, and blade stiffeners 23, expand
The cross section of blade girder, improves the bending stiffness (EI) of blade sections 102.
Figure 10 a and Figure 10 b shows according to another embodiment of the present utility model, and shows in Figure 10 c and Figure 10 d
Go out in Figure 10 b, blade sections adjacent part partial enlarged drawing.In embodiment shown in Figure 10 a, each blade is windward
Side is additionally arranged blade stiffeners 21,23,25.Blade stiffeners 21 at one end at (lower end) blade root with blade sections, i.e. leaf
Root segment 101 connects, and is connected with feather guiding mechanism 51 in the other end (upper end), and blade stiffeners 23 are connected to feather and draw
Lead mechanism 51 and feather guiding mechanism 52, (lower end) is fixing with feather guiding mechanism 52 even at one end for blade stiffeners 25
Connect, and in the other end (upper end) in blade middle and upper part correct position, such as tie point 14 with blade sections, i.e. blade tip section 103 directly connects
Connect.For example, tie point is located at the approximately longitudinally medium position of blade sections, i.e. blade tip section.The connection of blade sections 103 so can be reduced
Put the moment of flexure of the blade to feather guiding mechanism 52 at 14, also just can reduce the thickness of this section of girder of blade and shell.Borrow
Help according to vane propeller-changing of the present utility model away from guiding mechanism 51 and 52, and blade stiffeners 21,23, expand blade master
The cross section of beam, improves the bending stiffness (EI) of blade sections.Figure 10 b shows the vane propeller-changing of this embodiment away from vectoring aircraft
Structure partial enlarged drawing, shows the connection away from guiding mechanism of blade sections and vane propeller-changing, and blade sections are with respect to another
The feather rotation of individual blade sections.
Figure 11 shows according to another embodiment of the present utility model, and shows blade sections phase in Figure 11 a and Figure 11 b
The partial enlarged drawing of adjacent part.In the embodiment shown in fig. 11, in the first side of each blade, such as side (Figure 11 windward
The direction of arrow of middle W is the direction of wind) increase be provided with (first) blade stiffeners 21,23,25.Additionally, also in the phase of blade
The second anti-side, for example leeward side increase are provided with (second) blade stiffeners 22,24,26.Blade stiffeners 21,22 are one
With blade sections at (lower end) blade root of end, i.e. blade root section 101 is connected, and in the other end (upper end) and feather guiding mechanism 51
Connect, blade stiffeners 23,24 are connected to feather guiding mechanism 51 and feather guiding mechanism 52, blade stiffeners 25,26
(lower end) is fixedly connected with feather guiding mechanism 52 at one end, and the other end (upper end) blade middle and upper part correct position,
If tie point 14,15 is with blade sections, i.e. blade tip section 103 is directly connected to.For example, tie point is located at blade sections, i.e. blade tip section 103
Approximately longitudinally medium position.The moment of flexure to feather guiding mechanism 52 blade at the tie point 14 of blade sections 103 so can be reduced,
Also the thickness of this section of girder of blade and shell can just be reduced.In the same manner, due to blade stiffeners 26, in mutation negative side's feelings aweather
Under condition, also can reduce the opposite direction moment of flexure to feather guiding mechanism 52 blade at the tie point 15 of blade sections 103.By means of root
According to vane propeller-changing of the present utility model away from guiding mechanism 51 and 52, and blade stiffeners 21,23, expand the horizontal stroke of blade girder
Section, improves the bending stiffness (EI) of blade.Although additionally, being not bound by the restriction of opinion, in the present embodiment, by means of basis
Vane propeller-changing of the present utility model is away from guiding mechanism 51 and 52, and is arranged on the two opposite sides of blade (first and
Two) blade stiffeners 22,24, mutation negative side aweather in the case of, also improve the opposite direction moment of flexure bending stiffness of blade
(EI), especially in the blade according to multisection type feather of the present utility model, the negative side with reply mutation is aweather (towards it
Front blade is leeward to be blown) ability be especially beneficial.
Figure 12 shows according to another embodiment of the present utility model.In the embodiment shown in fig. 12, each blade exists
Side, for example side increases and is provided with (the 3rd) connecting bracket 11 and (first) blade stiffeners 21,23,25 windward.Shown
Embodiment in, connecting bracket 11 is arranged on blade sections, such as in blade root section 101.In an illustrated embodiment, connecting bracket 11 has
There is Integral rectangular framework, and do not play the effect of guiding mechanism.Blade stiffeners 21 be connected to connecting bracket 11 with for example as the
The feather guiding mechanism 51 of one connecting bracket, blade stiffeners 23 are connected to the such as feather as the first connecting bracket and draw
Lead mechanism 51 and the feather guiding mechanism 52 for example as the second connecting bracket, blade stiffeners 25 (lower end) and example at one end
As the feather guiding mechanism 52 as the second connecting bracket is fixedly connected and suitable in blade middle and upper part in the other end (upper end)
Position, such as tie point 14 and blade 1 are directly connected to.Preferably, the correct position of tie point 14 is calculated according to the load of blade.
For example, tie point is located at the approximately longitudinally medium position of blade sections, i.e. blade tip section 103.Described tie point is equivalent to blade sections
103 provide a fulcrum.Blade so can be reduced at the tie point 14,15 of blade sections 103 to feather guiding mechanism 52
Moment of flexure, also just can reduce the thickness of this section of girder of blade and shell.Prop up by means of being connected according to blade of the present utility model
Frame 11,51 and 52, and blade stiffeners 21,23, expand the cross section of blade girder, improve the bending stiffness of blade
(EI).
Although not specifically illustrated in fig. 12, also, it is contemplated that on the second contrary side of blade, for example leeward one
Side increases (second) blade stiffeners 22,24,26 (not shown) in setting such as Figure 11.Blade stiffeners 22 are at one end (lower end)
With blade sections at blade root, i.e. blade root section 101 is connected, is for example directly connected to or by similar to (the 3rd) connecting bracket 11
Connecting bracket connect, and be connected with feather guiding mechanism 51 in the other end (upper end), blade stiffeners 24 are connected to change oar
Away from guiding mechanism 51 and feather guiding mechanism 52, (lower end) is fixing with feather guiding mechanism 52 at one end for blade stiffeners 26
Connect, and in the other end (upper end) in blade middle and upper part correct position, such as tie point 15 with blade sections, i.e. blade tip section 103 is direct
Connect.For example, tie point is located at the approximately longitudinally medium position of blade sections, i.e. blade tip section 103.So, due to blade stiffeners
26, mutation negative side aweather in the case of, also can reduce at the tie point 15 of blade sections 103 to feather guiding mechanism 52 blade
Opposite direction moment of flexure.Equally, by means of according to vane propeller-changing of the present utility model away from guiding mechanism 51 and 52, and blade strengthen
Part 22,24, mutation negative side aweather in the case of, also improve opposite direction moment of flexure bending stiffness (EI) of blade.
In the embodiment shown in fig. 12, connecting bracket 11 may include the first supporting leg and first supporting leg is longitudinally spaced opens
Second supporting leg and the connecting rod that described first supporting leg and the second supporting leg are fixedly secured to one another or any suitable connect unit
Part.With continued reference to Figure 12, connecting bracket can be in frame-like, and preferably described first supporting leg and the second supporting leg can be in all beam type structure
Make, for example, include preferably parallel post member and cross-member respectively.
It is contemplated that in other embodiments, this connecting bracket 11 can be used as other connecting brackets (feather vectoring aircraft
Structure) or the supplement of its linkage function or replacement.It will also be appreciated that arranging connecting bracket 11 in other blade sections, such as in tie point
It is provided at 14 and/or 15 connecting the connecting bracket of blade stiffeners.
Although in the embodiment shown in Fig. 9-Figure 12, show the substantially longitudinal alignment of each blade stiffeners, only one
The individual blade stiffeners along longitudinal blade axis extension are connected with connecting bracket.But it is contemplated that other configurations, for example more
The blade stiffeners of substantially longitudinal alignment of more number or the parallel blade stiffeners of greater number.It is highly preferred that arrangement
In the blade stiffeners along longitudinal blade axis both sides, contribute to improving that blade waves direction and the bending of edgewise direction is firm simultaneously
Degree (EI).
In the preferred embodiment shown, the general frame columnar structure of connecting bracket (or feather guiding mechanism) is conducive to
Reduce the aerodynamic impact on blade, for example, minimize windage.It will be obvious to those skilled in the art that connecting bracket can
So that in other constructions or shape, this falls in the range of the utility model.For example, the number of supporting leg, guide rail and/or connecting element
Or shape can be different.
In a preferred embodiment, blade stiffeners can have different shape of cross sections, for example preferably circular,
But can also be rectangle, square, oval etc..It is highly preferred that blade stiffeners, along along blade longitudinally each blade sections, can have
There are different cross sectional dimensions.The cross sectional dimensions of blade stiffeners successively decreases to blade tip section from blade root section, blade stiffeners and leaf
The distance of piece shell also can accordingly adjust.The outsourcing cross section of blade stiffeners also can have different shape, can be circular, ellipse
Circle etc..It is highly preferred that the outsourcing cross section of blade stiffeners selects to meet aerodynamic outsourcing shape, to reduce windage
And noise.It is particularly preferred that selecting outsourcing air foil shape so as to produce lift, contribute to the rotation of rotor blade.
In a preferred embodiment, at least one of blade stiffeners, be entirely preferably tensile reinforcement member, preferably
It is tensile reinforcement member, preferably flexible tensile reinforcement member, the preferably rope of high intensity.Preferably, in blade stiffeners
At least one, be entirely preferably the rope made of fiber composite, more preferably carbon fiber rope.However, it is contemplated that
Blade stiffeners can include or other types of rope, for example, with blade same material make, such as glass fibre
Rope.
In a preferred embodiment, stretch-draw prestressing force can be applied so that blade to blade stiffeners 21,23,25
Girder leeward side elder generation tension stress.In blade run duration, prestretching stress can the compression that leads to of partial offset load, from
And improve the bearing capacity of blade.
With continued reference to Fig. 2-Figure 13 a and Figure 13 b, the reinforced blade of segmented according to embodiment of the present utility model is described
Manufacture method.In an exemplary embodiment of the present utility model, blade sections 101,102 and 103 sectional making, and can be
Assembling.Alternatively, as shown in Figure 13 a and Figure 13 b be arranged in blade sections feather actuating mechanism (if any) permissible
Arrange when manufacturing blade sections or afterwards.
Preferably, blade stiffeners 21-26 can connect to connecting bracket (supporting leg) and/or blade when manufacturing blade sections
(blade sections).In alternate embodiments, blade stiffeners 21-26 can install at the scene, for example formed connecting bracket (or
Feather guiding mechanism) install afterwards.
But it may occur to persons skilled in the art that, connecting bracket can integrally with blade blade girder, the soffit of girder in other words
Plate or shell are integrally formed, or connecting bracket can integrally be fixedly attached to blade in other words blade girder, web or
Shell.Alternatively, connecting bracket (or feather guiding mechanism) can have multiple first supporting legs, as directed embodiment, thus
The combination of this first supporting leg and all direction guiding rails can also provide improvement across one section of span in the horizontal because of it as beam
Bending stiffness.
Preferably, connecting bracket (or feather guiding mechanism) partly or entirely can by with blade blade master in other words
Beam, web or shell identical material are formed, for example, formed by glass fiber compound material, more preferably by material fusion
It is integrally formed.It will be obvious to those skilled in the art that connecting bracket can also be formed using different materials.
It should be understood that although this specification is according to the description of each embodiment, but not each embodiment only comprises one
Individual independent technical scheme, only for clarity, those skilled in the art should will say this narrating mode of specification
Bright book can also form those skilled in the art permissible through appropriately combined as an entirety, the technical scheme in each embodiment
The other embodiment understanding.The feature of the innovation disclosed in specification is not requisite, and the feature of each innovation is permissible
With others existing configuration and obtain new technical scheme, this both falls within the range of the utility model.
The foregoing is only the schematic specific embodiment of the utility model, be not limited to model of the present utility model
Enclose.Any those skilled in the art, the equivalent variations made on the premise of without departing from design of the present utility model and principle,
Modification and combination, all should belong to the scope of the utility model protection.
Reference numerals list
1- rotor 52- feather guiding mechanism (connecting bracket)
2- blade enclosure 61- the first supporting part
3- girder construction 62- second supporting part
4- girder 63- connecting portion
5- anti-shearing web 100- blade
6- hub 101- blade sections, blade root section
10- blade assembly 102- blade sections, intermediate blade section
11- connecting bracket 103- blade sections, blade tip section
14- tie point 161- feather motor
15- tie point 162- pitch bearings
16- feather actuating mechanism 311- post member
21- blade stiffeners 312- post member
22- blade stiffeners 313- cross-member
23- blade stiffeners 321- post member
24- blade stiffeners 322- post member
25- blade stiffeners 323- cross-member
26- blade stiffeners 611- the first supporting leg
31- the first supporting leg 612- guide rail
32- the second supporting leg 621- the second supporting leg
33- connecting rod 631- connecting element
51- feather guiding mechanism (connecting bracket) 632- guiding piece
Claims (19)
1. a kind of blade assembly of variable oar elongation, is characterized in that, including：
There is the blade of multiple blade sections, at least two adjacent blade segment can be rotated relative to one another to change its propeller pitch angle；With
Feather guiding mechanism, including the circumferentially extending guide rail being fixed to one of two adjacent blade segment that can be rotated relative to one another
Be fixed to another one or more guiding pieces in two adjacent blade segment that can be rotated relative to one another,
Wherein said one or more guiding piece is configured to connect to described guide rail and be directed motion on described guide rail.
2. blade assembly according to claim 1, also includes the interface being arranged between at least two adjacent blade segment
Feather actuating mechanism.
3. blade assembly according to claim 2, is characterized in that, described feather actuating mechanism includes being arranged in blade
Driver and pitch bearings.
4. blade assembly according to any one of claim 1 to 3, is characterized in that, described feather guiding mechanism includes
Multiple circumferentially spaced guiding pieces.
5. blade assembly according to any one of claim 1 to 3, is characterized in that, described guiding piece includes leading along described
Rolling member and/or the sliding part along described slide that rail rolls.
6. blade assembly according to claim 5, is characterized in that, described guiding piece includes a pair respectively along described guide rail
Top surface and the rolling member of bottom surface rolling.
7. blade assembly according to claim 5, is characterized in that, described rolling member includes rolling bearing.
8. blade assembly according to any one of claim 1 to 3, is characterized in that, described feather guiding mechanism is also wrapped
Include the first supporting leg for guide rail being fixedly attached to blade and be used for described guiding piece is fixed to the second supporting leg of blade.
9. blade assembly according to claim 8, is characterized in that, described feather guiding mechanism is also included along blade longitudinally
Extend across the connecting element of one section of span, the first end of described connecting element is fixed to the second supporting leg, and the second end setting is described
Guiding piece.
10. blade assembly according to any one of claim 1 to 3, is characterized in that, described guide rail is in circumferentially around described
The annular of blade.
11. blade assemblies according to any one of claim 1 to 3, is characterized in that, also include at least one elongated
Blade stiffeners, wherein, described blade stiffeners are configured at least one end and connect to described feather guiding mechanism.
12. blade assemblies according to any one of claim 1 to 3, is characterized in that, also include be arranged on blade first
At least one on side first blade stiffeners and at least one second blade being arranged on the second contrary side of blade add
Strong part, described first and second blade stiffeners are configured at least one end and connect to described feather guiding mechanism.
13. blade assemblies according to claim 12, is characterized in that, described first and second blade stiffeners are with regard to blade
It is symmetrical arranged.
14. blade assemblies according to claim 2, is characterized in that, described feather actuating mechanism is arranged on blade exterior.
A kind of 15. blade assemblies of variable oar elongation, is characterized in that, including：
There is the blade of multiple blade sections, at least two adjacent blade segment can be rotated relative to one another to change its propeller pitch angle；With
It is fixed to blade and extend longitudinally across the connecting bracket of one section of span along blade；
Connecting bracket described at least one of which is also configured for use as being fixed to two adjacent blade segment that can be rotated relative to one another
Feather guiding mechanism, described feather guiding mechanism include being fixed to one of described two adjacent blade segment at least one
One supporting leg, be fixed to another at least one second supporting leg in described two adjacent blade segment, be fixed to described at least one
All direction guiding rails of the first supporting leg and connecting element, the first end of described connecting element is fixed to the second supporting leg, and the second end is provided with rolling
The dynamic rolling member engaging described guide rail.
16. blade assemblies according to claim 15, is characterized in that, also include at least one elongated blade stiffeners,
Wherein, described blade stiffeners are configured at least one end and connect to described connecting bracket to be opened with described spacing with blades.
A kind of 17. rotors, is characterized in that, including hub, connect to described hub according to any one of claim 1 to 16
Multiple blade assemblies, the blade of described blade assembly includes blade root section.
A kind of 18. wind power installations, is characterized in that, including rotor according to claim 17.
A kind of 19. generating equipments, is characterized in that, including rotor according to claim 17, described generating equipment is wind-force
Generating equipment, ocean current generating equipment or tidal current generation equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620436569.7U CN205977533U (en) | 2016-05-13 | 2016-05-13 | Blade subassembly and rotor and wind power installation and power generating equipment of variable propeller pitch angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620436569.7U CN205977533U (en) | 2016-05-13 | 2016-05-13 | Blade subassembly and rotor and wind power installation and power generating equipment of variable propeller pitch angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205977533U true CN205977533U (en) | 2017-02-22 |
Family
ID=58019271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620436569.7U Active CN205977533U (en) | 2016-05-13 | 2016-05-13 | Blade subassembly and rotor and wind power installation and power generating equipment of variable propeller pitch angle |
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| Country | Link |
|---|---|
| CN (1) | CN205977533U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366604A (en) * | 2016-05-13 | 2017-11-21 | 周方 | The multisection type rotor blade of wind-driven generator |
| CN109751189A (en) * | 2017-11-07 | 2019-05-14 | 上海交通大学 | A kind of wind-driven generator and its blade |
| CN112469895A (en) * | 2018-06-20 | 2021-03-09 | 思吉科能源解决方案有限责任公司 | Kinetic fluid energy conversion system |
-
2016
- 2016-05-13 CN CN201620436569.7U patent/CN205977533U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366604A (en) * | 2016-05-13 | 2017-11-21 | 周方 | The multisection type rotor blade of wind-driven generator |
| CN107366604B (en) * | 2016-05-13 | 2023-11-10 | 周方 | Multi-segment rotor blade of wind driven generator |
| CN109751189A (en) * | 2017-11-07 | 2019-05-14 | 上海交通大学 | A kind of wind-driven generator and its blade |
| CN112469895A (en) * | 2018-06-20 | 2021-03-09 | 思吉科能源解决方案有限责任公司 | Kinetic fluid energy conversion system |
| CN112469895B (en) * | 2018-06-20 | 2024-04-16 | 思吉科能源解决方案有限责任公司 | Dynamic fluid energy conversion system |
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