CN101629544A - Paddle hub of wind power generating set - Google Patents
Paddle hub of wind power generating set Download PDFInfo
- Publication number
- CN101629544A CN101629544A CN200810023155A CN200810023155A CN101629544A CN 101629544 A CN101629544 A CN 101629544A CN 200810023155 A CN200810023155 A CN 200810023155A CN 200810023155 A CN200810023155 A CN 200810023155A CN 101629544 A CN101629544 A CN 101629544A
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- blade
- paddle
- wind power
- power generating
- generating set
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention relates to an improvement on a paddle hub of a wind power generating set, which is characterized in that a fixed paddle device consists of a shaft sleeve, paddle mounting plates and more than two paddle mounting seats, wherein the shaft sleeve is sleeved on a main shaft to follow up, the paddle mounting plates are arranged on the shaft sleeve, vertical to the shaft sleeve and arranged in parallel at intervals, and the paddle mounting seats are evenly distributed in the circumferential direction between the mounting plates; and a rectifying cover is fixed on the paddle mounting plates and/or the main shaft. Compared with the prior art, the paddle hub greatly simplifies the structure and the stress condition, the weight of 1.5 megawatts is reduced by at least 30 percent, and the weight is reduced obviously if the power is higher; the design, manufacture and technical requirements are greatly simplified, and the design and manufacture can be finished by adopting a machining mode of a common machine; the static balance is extremely easy to control; and the rectifying cover does not bear the weight of paddles and the transferred load and can be made of a lightweight material, and the total manufacturing cost is only 30 to 40 percent of that of the prior large shell. The paddle hub has the advantages of two-dimensional stress, good mechanical property, light weight and simple manufacture.
Description
Technical field
The present invention relates to fixedly fan blade propeller hub of a kind of improved wind generating unit, relate in particular to a kind of in light weight, simple wind-powered electricity generation electricity generating device propeller hub of manufacturing.
Background technique
Propeller hub in the wind generating unit, be mainly used in fixed blades, blade tuningout rotation mechanism is installed, and play the air conducting effect, it is one of vitals of wind generating unit, the moment of torsion that it should transmit blade is passed to macro-axis again, so that the drive generator for electricity generation, the moment of flexure and tens tons of centrifugal actions of each blade (MW class) that also will bear each blade simultaneously.
Existing wind generating unit slurry hub (MW class) Fig. 1 is the hull shape propeller hub of cowling and fixed blades unification, and blade is distributed on the propeller hub by the blade bearing respectively, and for example Chinese patent CN200955472 is described.Owing to need to place the gearwheel blade pitch device and the blade of 1.2 meters to 1.8 meters of three diameters, and the centrifugal force that bears tens tons, make volume and weight all very huge, ton surplus 1.5 megawatt slurry hub own wt reaches ten, add blade and transfer paddle mechanism weight, add and will bear tens tons of centrifugal force, thickness of shell reaches 20-30mm, makes whole propeller hub weigh about 30 tons.So great propeller hub not only consumes a large amount of metallic material, and the casting of common at present employing metal pattern, makes and makes complexity, and manufacture difficulty is very big, and the manufacture cost height accounts for overall cost 10-15%; Secondly, slurry hub weight greatly also makes the rotating spindle diameter want big, has increased the electricity generating device gross weight especially; Besides, forging type is made the hull shape propeller hub, and weight uniformity control difficulty is big, the static balancing difficulty.Therefore still having is worth improved place.
Summary of the invention
The object of the invention is to overcome the deficiency of above-mentioned prior art, provide a kind of in light weight, make the paddle hub of wind power generating set simple, that cost is low.
The object of the invention realizes that main the improvement is to change casting hull shape propeller hub into two-dimension plane structure, and blade is fixed on the two dimensional surface member, and cowling is separated from load-carrying member, cowling is not born totally stressed, only plays the air conducting effect, thereby realizes the object of the invention.Specifically, paddle hub of wind power generating set of the present invention, comprise that taper fairing reaches radially fixed blades device, it is characterized in that the fixed blades device has an axle sleeve that is enclosed within servo-actuated on the main shaft, and be arranged at axle sleeve and perpendicular to the arranged side by side alternate blade mounting plate of axle sleeve, two circumferentially uniform between mounting plate above blade fitting seats are formed, and cowling is fixed on blade mounting plate and/or the main shaft.
Axle sleeve of the present invention, mainly be to consider conveniently, simplify and make and install and be provided with, and because of axle sleeve has the higher curved ability of holding than axle, the moment of flexure that makes the blade transmission, because the axle sleeve effect becomes two a pair of couples in the blade mounting plate plane, digest voluntarily by mounting plate, thereby can reduce flexural stress main shaft.Certainly with alternate blade mounting plate arranged side by side, directly being connected with macro-axis neither.
The blade mounting plate is mainly used in and installs and fixes blade, can be circular plate, also can be polygonal panel.Wherein a kind of more preferably circular plate, resistance of air when helping reducing to rotate improves wind-force efficient.Can eliminate the chain stress in the blade mounting plate when making high speed rotating, a kind of optimal way cuts out for the disconnected position that will install between blade, can avoid causing when high wind speed rotates chain stress, raising mounting plate load ability.
Cowling, identical with the rectified action of existing hull shape propeller hub, play the effect of rectification wind field, to improve blade efficient, the present invention just with it from the load parts separately, only plays rectified action, thereby can adopt for example making such as glass fibre reinforced plastics, aluminium of lightweight material.
Paddle hub of wind power generating set of the present invention, than prior art a kind of brand-new propeller hub design concept has been proposed, thereby propeller hub structure and force-bearing situation have been simplified greatly, propeller hub has only cowling, is enclosed within the main shaft Upper shaft sleeve, blade mounting plate, blade fitting seat and blade bearing, makes that not only weight greatly reduces, and is example with 1.5 megawatts, weight descends at least 30% (former about 15 tons, now only be about 10 tons), and generated output is big more, and loss of weight is obvious more; And design, manufacturing and technical requirements are also simplified greatly, the fixed blades mounting plate, only play the fixed blades effect, it is very easy to make, and can adopt the conventional machinery processing mode to finish, and does not need the special-purpose process equipment of making, saved quite complicated metal die casting, can also save processing charges greatly, processing charges can reduce more than 50% at least, and the machining static balancing is very easily control also.Plane structure blade mounting plate, not only two-dimentional stressed, mechanical property good, two-dimentional stressed bearing capacity is higher than the housing bearing capacity far away in the board plane, tens tons of huge centrifugal force that blade produces, by balance voluntarily in the blade mounting plate plane, and the space is big between the mounting plate, transfers paddle mechanism to install for blade enough spaces are provided.Two blade mounting plates were formed a complete integral body about the blade fitting seat made, and had improved the stiffness of propeller hub greatly.Cowling is separated from install and fix blade, and it is stressed not participate in integral body, need not bear blade weight and transmit load, only play the air conducting effect, can adopt lightweight materials such as glass fibre reinforced plastics, aluminium to make, manufacture cost also descends significantly, and total manufacture cost has only the 30-40% of original big housing.Axle sleeve has the higher curved ability of holding than axle, makes the moment of flexure that blade transmits because the axle sleeve effect becomes two a pair of couples in the blade mounting plate plane, to be digested, thereby can reduce the main shaft flexural stress voluntarily by mounting plate.The propeller hub two dimension is stressed, and mechanical property is good, and is in light weight, and making simply is maximum feature of the present invention.
Below in conjunction with two illustrative embodiments; the present invention is further understood in exemplary illustration and help; but embodiment's detail only is for the present invention is described; do not represent the present invention to conceive whole technological schemes down; therefore should not be construed as the technological scheme qualification total to the present invention, some do not depart from the unsubstantiality of the present invention's design and change In the view of the technician; for example simple the change or replacement of technical characteristics to have same or similar technique effect all belongs to protection domain of the present invention.
Description of drawings
Fig. 1 transfers pitch propeller hub structural representation for the prior art gear.
Fig. 2 is a propeller hub structural representation of the present invention.
Fig. 3 is Figure 1A-A sectional structure schematic representation.
Fig. 4 is that Figure 1B is to structural representation.
Fig. 5 is embodiment's 2 blade mounting plates structure schematic representation.
Embodiment
Embodiment 1: referring to Fig. 2-4, paddle hub of wind power generating set of the present invention, comprise the axle sleeve 2 that is enclosed within on the main shaft, axle sleeve directly is positioned on the main shaft by key, radially respectively there is connecting ring at the axle sleeve two ends, be fixed with the circular steel plate 3.1 and 3.2 of two alternate fixed blades 6 on the connecting ring respectively, side face is uniform between two round plates is fixed with three (look number of blade fixed) blade fitting seats 4, fitting seat and mounting plate adopt riveted joint or are spirally connected, in have the supporting blade to rotate tapered roller bearing 5, glass fibre reinforced plastics cowling 1 is fixed on the mounting plate 3.1 of flow path direction.Have on the incoming flow side mounting plate 3.1 identical with number of blade, be used for for driving the slotted eye 8 that blade deflection pull bar passes.
Embodiment 2: referring to Fig. 5, as embodiment 1, the disconnected blade of blade mounting plate position cuts out and forms the indent 7 of eliminating chain stress.
To those skilled in the art, under the present invention conceives enlightenment, some distortion that can directly derive or associate from this patent disclosure, or the substituting of known technology commonly used in the prior art, and the mutual various combination between feature, for example can replace big plectane with the polygonal sheet metal; Main shaft and axle sleeve adopt the spline radial location; Number of blade changes; Cowling shape and material change or the like, can both realize and basic identical function of the foregoing description and effect, launch for example no longer one by one to describe in detail, all belong to this patent protection domain.
Claims (7)
1, paddle hub of wind power generating set, comprise that cowling reaches radially fixed blades device, it is characterized in that the fixed blades device has an axle sleeve that is enclosed within servo-actuated on the main shaft, and be arranged at axle sleeve and perpendicular to the arranged side by side alternate blade mounting plate of axle sleeve, two circumferentially uniform between mounting plate above blade fitting seats are formed, and cowling is fixed on blade mounting plate and/or the main shaft.
2,, it is characterized in that alternate blade mounting plate arranged side by side is a circular plate according to the described paddle hub of wind power generating set of claim 1.
3, according to the described paddle hub of wind power generating set of claim 1, it is characterized in that having on the incoming flow side mounting plate identical with number of blade, be used for for driving the slotted eye that blade deflection pull bar passes.
4,, it is characterized in that axle sleeve radially has the connecting ring of connection plate according to the described paddle hub of wind power generating set of claim 1.
5,, it is characterized in that cowling adopts lightweight material to make according to the described paddle hub of wind power generating set of claim 1.
6,, it is characterized in that blade fitting seat and blade mounting plate adopt riveted joint or be spirally connected according to the described paddle hub of wind power generating set of claim 1.
7, according to claim 1,2,3,4,5 or 6 described paddle hub of wind power generating set, it is characterized in that alternate blade mounting plate arranged side by side, disconnected blade position cuts out and forms the indent of eliminating chain stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810023155A CN101629544A (en) | 2008-07-16 | 2008-07-16 | Paddle hub of wind power generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810023155A CN101629544A (en) | 2008-07-16 | 2008-07-16 | Paddle hub of wind power generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101629544A true CN101629544A (en) | 2010-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810023155A Pending CN101629544A (en) | 2008-07-16 | 2008-07-16 | Paddle hub of wind power generating set |
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| CN (1) | CN101629544A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019119940A1 (en) * | 2017-12-22 | 2019-06-27 | 深圳市道通智能航空技术有限公司 | Propeller assembly method, assembly fixture and propeller |
-
2008
- 2008-07-16 CN CN200810023155A patent/CN101629544A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019119940A1 (en) * | 2017-12-22 | 2019-06-27 | 深圳市道通智能航空技术有限公司 | Propeller assembly method, assembly fixture and propeller |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100120 |