CN103423081A - Variable-pitch net-shaped stay wire wind wheel - Google Patents
Variable-pitch net-shaped stay wire wind wheel Download PDFInfo
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- CN103423081A CN103423081A CN201210159647XA CN201210159647A CN103423081A CN 103423081 A CN103423081 A CN 103423081A CN 201210159647X A CN201210159647X A CN 201210159647XA CN 201210159647 A CN201210159647 A CN 201210159647A CN 103423081 A CN103423081 A CN 103423081A
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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 invention discloses a variable-pitch net-shaped stay wire wind wheel, and belongs to the technical field of new energy. The variable-pitch net-shaped stay wire wind wheel comprises a wheel hub (1), a wheel rim (8), blades (3) and stay wire cables (2), wherein the wheel hub (1) and the wheel rim (8) are fixedly connected into a whole through the stay wire cables (2), and are tensioned through wire cable tensioners, and the stay wire cables (2) longitudinally penetrate through the blades (3). The variable-pitch net-shaped stay wire wind wheel is characterized in that the inner end and the outer end of each blade (3) are connected with blade variable-pitch devices, an outer supporting plate at the outer end of each blade (3) is hinged to each outer connecting line (5), each outer connecting line (5) is connected with one end of each outer rotating plate beside the outer connecting line, the other end of each outer rotating plate is connected with an outer backstay cable (4), a middle shaft of each outer rotating plate is hinged to an outer support fixed to the wheel rim (8), an inner supporting plate at the inner end of each blade (3) is hinged to an inner connecting line (7), each inner connecting line (7) is connected with one end of an inner rotating plate, and the other end of each inner rotating plate is connected with an inner backstay cable. According to the variable-pitch net-shaped stay wire wind wheel, variable-pitch stability of the blades is good, the helical face of a windward side of each blade is small in change, the wind power utilization coefficient is greatly improved, cost is greatly reduced, and the defects of a three-blade wind wheel and the defects of an existing stay wire wind wheel are overcome.
Description
Technical field
The invention relates to a kind of wind energy conversion system that is converted to the mechanical rotation energy that wind energy is received, and belongs to the cleaning new energy technical field.
Background technique
(0001) on current large medium size wind generator, wind energy being received to the device that transfers mechanical kinetic energy to, is to become oar three blade wind wheels mostly.For example, but big-and-middle-sized change oar three blade wind wheels have many shortcomings: 1. its power coefficient ratio of kinetic energy by wind wheel (rotational that wind wheel obtains with) is only approximately having 20% (limiting value is 59.3%) under general wind regime; 2. cost is higher, just high nearly 0.2 ten thousand yuan of every kilowatt of electric motor powers of glass reinforced plastic (wherein become oar and possess the low voltage capacity cost and account for approximately 30%); 3. the life-span of glass reinforced plastic shorter,, there is damage in violent typhoon lower time, often will keep in repair; 4. easily accumulated ice is avenged and the generating that can not run well; 5. blade is oversize, in mountain area transportation difficulty, has greatly increased the expense of repairing the roads.This paper author has proposed the patent No. and has been respectively 201020629727.3,201120373287.4, number of patent application is the relevant programmes such as 201110296609.4, now be referred to as stay wire wind wheel, although carried out detailed designing and calculating and successively successfully manufactured experimently two kinds of small model machines, overcome the above-mentioned shortcoming of three blade wind-wheels, also have following point: 1. vane propeller-changing is unstable, change oar rear stability is poor, blade windward side helicoid changes excessive, has affected the raising of power coefficient; 2. the rolling bearing that is arranged on place, blade outer end rotates windage and has reduced wind wheel efficiency greatly, and will guarantee the working life of decades, and to making, this bearing cost is large; 3. the blade pitch device cost remains to be reduced.
Summary of the invention
(0001) the invention is on above-mentioned change oar stay wire wind wheel basis, a kind of new wind energy conversion system is provided, has been called " becoming the netted stay wire wind wheel of oar ", power coefficient increases substantially and the cost decrease, solve the problem of above-mentioned stay wire wind wheel, overcome the above-mentioned shortcoming of three blade wind-wheels.It has wheel hub, wheel rim, blade and makes wheel hub and bracing wire steel cable that wheel rim is fixed as one, steel cable is strained with the steel cable tensioner, steel cable vertically passes from blade interior, be primarily characterized in that blade the inner and outer end are connected with respectively the device of vane propeller-changing: the inner of blade is fixed with interior bearing and the intraconnections hinged with it, intraconnections is connected with its other interior pendulum plate one end, the interior pendulum plate the other end is connected with inhaul, and interior pendulum plate axis is hinged with the interior support plate be fixed on steel cable; The outer end of blade is fixed with outer support plate and the outer line hinged with it, and outer line is connected with its other outer pendulum plate one end, and the outer pendulum plate the other end is connected with outer drag-line, and outer pendulum plate axis is hinged with the outer support plate be fixed on wheel rim; The movement tendency of outer drag-line and inhaul is contrary, and when outer drag-line is positioned at inner dead centre, inhaul is positioned at the bottom dead-centre.
The accompanying drawing explanation
(0001) Fig. 1 is front (windward side) partial view that becomes the netted stay wire wind wheel embodiment of oar (18 meters of wind wheel external diameters), shown in about 2 degree of blade outer end propeller pitch angle, scale of view approximately 1: 80; Also there are the component such as equivalent blade and change oar its back (back of the body windward side), for expressing clear omission, does not draw.
Fig. 2 is the local N view of Fig. 1, ratio approximately 1: 3.8.
Fig. 3 is the B-B sectional view of Fig. 2, ratio approximately 1: 1.
Fig. 4 is the A-A sectional view of Fig. 2, ratio approximately 1: 1.
Fig. 5 is the E-E sectional view of Fig. 1, ratio approximately 1: 1.
Fig. 6 is the local M view of Fig. 1, ratio approximately 1: 2.44.
Fig. 7 is the C-C sectional view of Fig. 6, ratio approximately 1: 0.76.
Fig. 8 is this embodiment's wheel hub preceding office section view.Ratio approximately 1: 5.
Fig. 9 is the D-D sectional view of Fig. 8, ratio approximately 1: 7.18.
Embodiment
From Fig. 1,2,4,6,7,8, the present embodiment has wheel hub 1, wheel rim 8, blade 3 and makes wheel hub 1 and bracing wire steel cable 2 that wheel rim 8 is fixed as one, steel cable 2 use steel cable tensioner 35 tensions, steel cable 2 vertically passes from blade 3 inside, card article 18 is arranged on blade 3, it is characterized in that: blade 3 outer ends and the inner are connected with respectively vane propeller-changing device.This paper author's 201120373287.4 patent stay wire wind wheel schemes, showed the inner a kind of vane change device connected of blade.
Blade 3 outer ends are summarized as follows with the inner the most simple and reliable vane change device be connected respectively: as shown in Figure 2,4, the outer end cover 17 of blade 3 is fixed with outer support plate 13, reinforcing bar 20 and the outer line 5 hinged with it, outer line 5 is connected with its other outer pendulum plate 12 1 ends, outer pendulum plate 12 the other ends are connected with outer drag-line 4, outer pendulum plate fulcrum 10 is hinged with the outer support 9 be fixed on wheel rim 8, outer pendulum plate 12 is equipped with spring 11, and the outer end of blade shown in Fig. 4 propeller pitch angle is 2 degree approximately; As Fig. 6,7, the inner cover 32 of blade 3 is fixed with interior support plate 26 and the intraconnections 7 hinged with it, intraconnections 7 is connected with its other interior pendulum plate 27 1 ends, interior pendulum plate 27 the other ends are connected with inhaul 29, interior pendulum plate fulcrum 28 is hinged with the interior bearing 30 be fixed on steel cable 2, steel cable 2 is fixedly clamped by interior bearing 30 and clamping plate 31, on interior pendulum plate 27, spring 11 is housed, and the inner propeller pitch angle of blade shown in Fig. 7 is 23 degree approximately; Make the movement tendency of outer drag-line 4 and inhaul 29 contrary,, when outer drag-line 4 is positioned at inner dead centre, inhaul 29 is positioned at the bottom dead-centre, and blade 3 windward sides just can keep substantially constant helicoid in becoming the oar process, thereby larger power coefficient is arranged.Certainly, regulate in advance the relative position of relevant part articulating point.
Obviously, the wind wheel maximum radial section of take is symmetry plane, and the above-mentioned vane change device of the forward and backward two sides of the present embodiment blade (except outer drag-line 4 and inhaul 29) is symmetrical, so the corresponding vane change device in back need not repeat.
As seen from Figure 1 and know by inference, more consistent for each blade pitch angle, two outer line circles before and after the outer line 5 of the present embodiment wind wheel front-back is hinged respectively and forms; The intraconnections 7 of wind wheel front-back is hinged respectively and forms front and back totally two intraconnections circles.
Visible and know by inference from Fig. 1 and Fig. 5, in order to reduce the bad impact of gravity on blade, the present embodiment blade 3 middle parts are fixed with middle support plate 21 and the middle line 6 hinged with it, the middle line 6 of wind wheel front-back formation front and back totally four the middle line circles that are hinged respectively.If a blade only is hinged during a middle line 6, wind wheel front-back totally two middle line circles.The middle part of blade shown in Fig. 5 propeller pitch angle is 13 degree approximately.
As shown in Figure 6: the inner of blade 3 is fixed with and connects rope support 23, and even rope support 23 is connected with and draws leaf rope 22, draws leaf rope 22 the other ends to be fixed on wheel hub 1; Connect the bearing 25 and the seat folder 24 that are enclosed within addition bracing wire steel cable 2 in rope support 23.The change oar frictional resistance that centrifugal force and gravity produce can be reduced to greatest extent like this, the low-cost and reliable long lifetime of oar component can be guaranteed again to become.The purpose that connects rope support 23 is to make to draw the Point of Strength of 22 pairs of blades 3 of leaf rope to approach blade 3 segmentation centers of gravity to connect elongation lines, and resistance but also reduce the amplitude of deformation of while becoming oar, drawing leaf rope 22 has not only reduced friction.
As shown in Figure 9, be hinged with drag-line pendulum plate 39 on the present embodiment wheel hub 1, inhaul 29 and outer drag-line 4 are hinged on respectively drag-line pendulum plate 39 front-end and back-end.Swing drag-line pendulum plate 39, make inhaul 29 and outer drag-line 4 become up and down respectively the mechanism of oar, obviously the multiple devices such as lever or hydraulic pressure can be arranged.
As Fig. 8, shown in 9, the leverage that drives drag-line pendulum plate 39 to become oar is: wheel hub 1 front is hinged with lever 34, lever 34 outer ends and drag-line pendulum plate 39 are hinged with line 38 respectively, on drag-line pendulum plate 39, spring 11 is housed, roller 48 is equipped with in lever 34 the inners, there is pressing plate 36 roller 48 fronts, pressing plate 36 is fixedly connected with the pulling shaft 41 of wheel hub 1 central authorities, pulling shaft 41 is through axle front stall 37 and axle back seat 42 on wheel bore 33 and wheel hub 1, be fixed with tooth bar 44 on pulling shaft 41, tooth bar 44 and gear 47 engagements, gear 47 drives and is connected by speed reducer with the motor 46 that is fixed on wheel hub 1.In order to use the pulling shaft 41 that steel pipe is made not rotate, be fixed with a parallel axes 43 on pulling shaft 41, parallel axes 43 is also through axle back seat 42.
The position limit switch 40 that control motor (46) is arranged between the present embodiment pulling shaft 41 and wheel hub 1 inwall as seen from Figure 9.Pulling shaft 41 and axle front stall 37 distances are corresponding to different wind speed and wind wheel different rotating speeds.Through preinstalled circuit, the corresponding situation that determines position limit switch 40 of the induction switch of wind speed and wind speed round, the situation of position limit switch 40 has been controlled motor 46, gear 47, tooth bar 44, pulling shaft 41, lever 34, drag-line pendulum plate 39, inhaul 29 and outer drag-line 4 etc. successively by contactor, finally control the variation of blade 3 propeller pitch angles, thereby reach the purpose of different wind speed and the corresponding different propeller pitch angles of wind wheel different rotating speeds.This position limit switch control system successfully adopts on this paper author's old stay wire wind wheel small model machine, and to people's show-and-tell.
The present embodiment is replaced to trilobed wheel, and Matching installation is controlled on the wind turbine of electronics to former existing change oar, if need not above-mentioned stroke on-off control system, be become oar and control motor 46 by this changes oar electronics, the realization of can being not difficult.Now, motor 46 is other may break 45.
Shown in Fig. 4,5,7, in blade 3 leading edges, heater wire chamber 16 is arranged, heating electric wire 19 is housed in heater wire chamber 16.At ice and snow weather, its leading edge particularly on blade 3, surface area ice and snow affects wind wheel and rotates, stall even.At this moment give the heating electric wire 19 energisings, can effectively remove institute's accumulated ice snow by the utmost point.
Be linked to be after the present embodiment wheel rim 8 tube bending identical by several internal-and external diameters, in its connecting sewing, socketed pipe arranged, socketed pipe is to be connected with numerous round pins of interference fit be socketed steel pipe.Be convenient to like this install at wind field.Certainly the best Pin form of round pin distributes.
As shown in Figure 3, outer line 5 articulated joints of the present embodiment have Cock screw 14, chuck 15, and chuck 15 is by 13 constraints of support plate outside the outer end of blade 3 but rotatable, and outer line 5 is through chuck 15, and by Cock screw 14, being compressed can not vibration.Its simple and practical longevity, cover is for other line hinged place of the present embodiment.
As seen from Figure 1, the present embodiment vane change device wind-exposuring area is very little with respect to wind wheel, very little on the impact of rotor solidity and power coefficient.Obviously, steel cable 2 hanger places and wheel hub 1 front of blade 3 outer ends all can fill air guide sleeve, and wheel rim 8 can be the less and special type section steel pipe that more tensile cord steel cable 2 draws of air resistance coefficient, to reduce the suffered windage of wind wheel or blast.
Claims (9)
1. the netted stay wire wind wheel of change oar, it has wheel hub (1), wheel rim (8), blade (3) and makes wheel hub (1) and bracing wire steel cable (2) that wheel rim (8) is fixed as one, steel cable tensioner (35) tension for steel cable (2), steel cable (2) vertically passes from blade (3) inside, it is characterized in that: blade (3) outer end and the inner are connected with respectively vane propeller-changing device.
2. the netted stay wire wind wheel of change oar according to claim 1, it is characterized in that: the outer end of blade (3) is fixed with outer support plate (20) and the outer line (5) hinged with it, outer line (5) is connected with its other outer pendulum plate (12) one ends, outer pendulum plate (12) the other end is connected with outer drag-line (4), and outer pendulum plate fulcrum (10) is hinged with the outer support (9) be fixed on wheel rim (8); The inner of blade (3) is fixed with interior support plate (26) and the intraconnections (7) hinged with it, intraconnections (7) is connected with its other interior pendulum plate (27) one ends, interior pendulum plate (27) the other end is connected with inhaul (29), and interior pendulum plate fulcrum 28 is hinged with the interior bearing 30 be fixed on steel cable 2; The movement tendency of outer drag-line (4) and inhaul (29) is contrary.
3. the netted stay wire wind wheel of change oar according to claim 2, is characterized in that: two outer line circles before and after the outer line 5 of wind wheel front-back is hinged respectively and forms; The intraconnections 7 of wind wheel front-back is hinged respectively and forms front and back totally two intraconnections circles.
4. according to the netted stay wire wind wheel of the described change oar of claim 2 or 3, it is characterized in that: blade 3 middle parts are fixed with middle support plate 21 and the middle line 6 hinged with it.
5. according to the netted stay wire wind wheel of the described change oar of claim 2 or 3, it is characterized in that: the inner of blade (3) is fixed with and connects rope support (23), even rope support (23) is connected with and draws leaf rope (22), draws leaf rope (22) the other end to be fixed on wheel hub (1); Connect the bearing (25) and the seat folder (24) that are enclosed within addition bracing wire steel cable (2) in rope support (23).
6. according to the netted stay wire wind wheel of the described change oar of claim 2 or 3, it is characterized in that: be hinged with drag-line pendulum plate (39) on wheel hub (1), inhaul (29) and outer drag-line (4) are hinged on respectively drag-line pendulum plate (39) front-end and back-end.
7. the netted stay wire wind wheel of change oar according to claim 6, it is characterized in that: wheel hub (1) front is hinged with lever (34), lever (34) outer end and drag-line pendulum plate (39) are hinged with line (38) respectively, on drag-line pendulum plate (39), spring (11) is housed, roller (48) is equipped with in lever (34) the inner, there is pressing plate (36) roller (48) front, pressing plate (36) is fixedly connected with the pulling shaft (41) of wheel hub (1) central authorities, and pulling shaft (41) is through axle front stall (37) and axle back seat (42) on wheel hub (1); Be fixed with tooth bar (44) on pulling shaft (41), tooth bar (44) and gear (47) engagement, gear (47) drives and is connected by speed reducer with the motor that is fixed on wheel hub (1) (46).
8. the netted stay wire wind wheel of change oar according to claim 7, is characterized in that: the position limit switch (40) that control motor (46) are arranged between pulling shaft (41) and wheel hub (1) inwall.
9. the netted stay wire wind wheel of change oar according to claim 1 and 2, it is characterized in that: after wheel rim (8) tube bending identical by several internal-and external diameters, be linked to be, in its connecting sewing, socketed pipe is arranged, socketed pipe is to be connected with the round pin of interference fit be socketed steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210159647XA CN103423081A (en) | 2012-05-22 | 2012-05-22 | Variable-pitch net-shaped stay wire wind wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210159647XA CN103423081A (en) | 2012-05-22 | 2012-05-22 | Variable-pitch net-shaped stay wire wind wheel |
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| CN103423081A true CN103423081A (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210159647XA Pending CN103423081A (en) | 2012-05-22 | 2012-05-22 | Variable-pitch net-shaped stay wire wind wheel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389738A (en) * | 2014-11-21 | 2015-03-04 | 玉溪市浩森工贸有限公司 | Outer ring obliquely strained type multi-blade wind wheel |
| CN106640517A (en) * | 2017-01-21 | 2017-05-10 | 毛永波 | Axial current force curtain sail current wheel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556323A (en) * | 2004-01-05 | 2004-12-22 | 姚卫东 | Wind force electric generator |
| US20100139062A1 (en) * | 2009-02-25 | 2010-06-10 | General Electric Company | Lowering and raising a single wind turbine rotor blade from six-o'clock position |
| CN102069363A (en) * | 2011-02-07 | 2011-05-25 | 朱永发 | Method for manufacturing wind wheel and blades of wind driven generator |
| CN201884199U (en) * | 2010-11-29 | 2011-06-29 | 陆中源 | Receiving and converting device of kinetic wind energy |
-
2012
- 2012-05-22 CN CN201210159647XA patent/CN103423081A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556323A (en) * | 2004-01-05 | 2004-12-22 | 姚卫东 | Wind force electric generator |
| US20100139062A1 (en) * | 2009-02-25 | 2010-06-10 | General Electric Company | Lowering and raising a single wind turbine rotor blade from six-o'clock position |
| CN201884199U (en) * | 2010-11-29 | 2011-06-29 | 陆中源 | Receiving and converting device of kinetic wind energy |
| CN102069363A (en) * | 2011-02-07 | 2011-05-25 | 朱永发 | Method for manufacturing wind wheel and blades of wind driven generator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389738A (en) * | 2014-11-21 | 2015-03-04 | 玉溪市浩森工贸有限公司 | Outer ring obliquely strained type multi-blade wind wheel |
| CN104389738B (en) * | 2014-11-21 | 2018-04-27 | 玉溪市浩森工贸有限公司 | A kind of outer ring cable-stayed type multiblade wind wheel |
| CN106640517A (en) * | 2017-01-21 | 2017-05-10 | 毛永波 | Axial current force curtain sail current wheel |
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Application publication date: 20131204 |