CN101392726A - Pulp distance varying mechanism of wind power generator - Google Patents
Pulp distance varying mechanism of wind power generator Download PDFInfo
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- CN101392726A CN101392726A CNA2008101219311A CN200810121931A CN101392726A CN 101392726 A CN101392726 A CN 101392726A CN A2008101219311 A CNA2008101219311 A CN A2008101219311A CN 200810121931 A CN200810121931 A CN 200810121931A CN 101392726 A CN101392726 A CN 101392726A
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- mounting rack
- wheel hub
- synchronous mounting
- link
- bearing
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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 mechanism for an aerogenerator, which comprises a wheel hub, a power component, a plurality of variable-pitch bearings, wherein the wheel hub consists of a curved surface formed by the axes around the wheel hub, a front cover and a back cover which are vertical to the axes of the wheel hub; the outer circle of the variable-pitch bearing is fixedly connected with the curve surface of the wheel hub, and the variable-pitch bearing is evenly distributed on the curve surface of the wheel hub. The device also comprises a screw-driven component, a synchronous mounting rack, a connecting piece and a rotating component, wherein the screw-driven component is rotationally matched with central holes of the front cover and the back cover, and the screw-driven component is connected with the power component; the screw-driven component is fixedly connected with the synchronous mounting rack; the synchronous mounting rack is rotationally connected with each connecting piece, each connecting piece is evenly distributed on the circumference taking the center of the synchronous mounting rack as circle center, and circumference plane is vertical to the axes of the wheel hub; and the connecting piece is also rotationally connected with the rotating component, and the rotating component is fixedly connected with the inner circle of the variable-pitch bearing.
Description
Technical field
The present invention relates to wind-driven generator, specifically is a kind of change slurry spacing mechanism of wind-driven generator.
Background technique
The change slurry spacing mechanism of existing wind-driven generator generally adopts hydraulic pressure to become the slurry spacing mechanism or motor independently becomes the slurry spacing mechanism.It is slow that described hydraulic pressure becomes slurry spacing mechanism speed of response, complex structure, make and the maintenance cost height, because use the medium of hydraulic oil as transferring power, so adaptive capacity to environment is poor, such as in the low environment of temperature, hydraulic oil is easily frozen and make described hydraulic pressure become the paralysis of slurry spacing mechanism, if start by force, wind-driven generator has ruined risk.Described motor independently becomes the slurry spacing mechanism and refers to the change slurry of each blade of wind-driven generator apart from realizing by corresponding speed reducer of motor driving independently, described motor independently becomes slurry spacing mechanism complex structure, make and the maintenance cost height, in fact, because the manufacturing variation of motor and speed reducer itself, becoming slurry in process, it is unusual difficulty that the slurry elongation that guarantees each blade is consistent, though can do accurately debugging to wind-driven generator at the installation initial stage, but, after after a while, component are many because described motor independently becomes the slurry spacing mechanism, the annexation complexity, the accumulation of error between each component of wearing and tearing back is exaggerated, and can't in process the slurry elongation of each blade is consistent at the change slurry again so described motor independently becomes the slurry spacing mechanism.
Summary of the invention
The technical problem to be solved in the present invention is, provide a kind of respond fast, simple in structure, cost is low, adaptive capacity to environment is strong, at the slurry elongation that becomes slurry each blade in the process change slurry spacing mechanism of consistent wind-driven generator all the time.
Technological scheme of the present invention is, a kind of change slurry spacing mechanism with wind-driven generator of following structure is provided, it comprises wheel hub, Power Component, a plurality of change slurry distance between bearing, described wheel hub is made of the protecgulum and the bonnet of the axis of the formed curved surface of axis that centers on described wheel hub, vertical described wheel hub, fixedly connected with the curved surface of described wheel hub in the outer ring of described change slurry distance between bearing, described change slurry distance between bearing is evenly distributed on the curved surface of described wheel hub, and it also comprises power screw assembly, synchronous mounting rack, link, Runner assembly; Described power screw assembly cooperates with the center hole of described protecgulum and described bonnet is rotatable respectively, and described power screw assembly is connected with described Power Component; The part that described power screw assembly is connected with described Power Component is positioned at the outside of described wheel hub, the remaining part of described power screw assembly is positioned at the inside of described wheel hub, described synchronous mounting rack, link, Runner assembly all are positioned at the inside of described wheel hub, the corresponding Runner assembly of each described change slurry distance between bearing, the corresponding link of each described Runner assembly; Described power screw assembly is fixedlyed connected with described synchronous mounting rack; One end of described synchronous mounting rack and each described link is rotatably connected, and the center that described link is evenly distributed on described synchronous mounting rack is on the circumference in the center of circle, and the plane at described circumference place and the axis of described wheel hub are perpendicular; The other end of described link and described Runner assembly are rotatably connected; Described Runner assembly is fixedlyed connected with the inner ring of described change slurry distance between bearing.
After adopting said structure, the present invention compared with prior art has the following advantages: because the present invention does not have hydraulic structure, but adopt pure mechanical structure, so avoided the defective of intrinsic low-response of hydraulic system and adaptive capacity to environment difference, i.e. the present invention responds soon, adaptive capacity to environment is strong; Because employing synchronous mounting rack, so the power screw assembly drives synchronous mounting rack and moves, described synchronous mounting rack will drive all links and move simultaneously, because the center that described link is evenly distributed on described synchronous mounting rack is on the circumference in the center of circle, the plane at described circumference place and the axis of described wheel hub are perpendicular, and the other end of described link and described Runner assembly are rotatably connected; Described Runner assembly is fixedlyed connected with the inner ring of described change slurry distance between bearing, fixedly connected with the curved surface of described wheel hub in the outer ring of described change slurry distance between bearing, on the curved surface of the even described wheel hub that distributes of described change slurry distance between bearing, so the movement locus of each link is the same, the movement locus of each Runner assembly is the same, just guaranteed that so also the direction that the inner ring of described change slurry distance between bearing rotates all is the same with angle, promptly at the slurry elongation that becomes slurry each blade in process unanimity all the time, synchronism height; Compare with background technique institute description scheme, component of the present invention are few, annexation between the component is simple, so the present invention is simple in structure, the phenomenon that the accumulation of error between each component of wearing and tearing back is exaggerated is alleviated greatly, has just determined that so also the stability of work of the present invention is better than original structure; Because component of the present invention are few, annexation is simple, and maintenance cost is low, and performance has corresponding raising again, so cost of the present invention is low.
As improvement, it also comprises guide rod and guide rod fitting seat, the axis of described guide rod and the parallel axes of described wheel hub; The through hole sliding fit of described guide rod and guide rod fitting seat; One end of described guide rod is fixedly installed on the described protecgulum, and the other end of described guide rod is fixedly installed on the described bonnet; Described guide rod fitting seat is connected by screw with described synchronous mounting rack.Can guarantee that so described synchronous mounting rack moves at the axial direction of described wheel hub, optimize the stressing conditions of described synchronous mounting rack.
As further improvement, described power screw assembly is a ball screw pair, and the axis of the leading screw of this ball screw pair and the axis of described wheel hub are same straight line; Match with the center hole of described protecgulum and the described bonnet respectively inner ring interference fit of the bearing in polished rod part and the center hole that is installed in described protecgulum and described bonnet of the leading screw that is meant described ball screw pair of described power screw assembly; Described power screw assembly is connected the leading screw that is meant described ball screw pair and is connected with described Power Component with described Power Component.Because described ball screw pair is compact structure not only, and can realize bigger velocity ratio, stable drive is accurate, so very useful for the raising of performance of the present invention.
As further improvement, described synchronous mounting rack has the crotch of a plurality of identical yokes, and each yoke is installed a link, and the angle of described adjacent yoke equates that the end of described yoke has a through slot along the axial direction of described leading screw; Described power screw assembly is fixedlyed connected with described synchronous mounting rack and is meant, the center hole Spielpassung of the nut of described ball screw pair and described synchronous mounting rack is equipped with gland in the both sides of the center hole of described synchronous mounting rack; The length of described nut is slightly less than or equals the length of the center hole of described synchronous mounting rack; The leading screw Spielpassung of described gland and described ball screw pair, described gland is connected by screw with described synchronous mounting rack; The be rotatably connected through slot of the yoke that is meant described synchronous mounting rack and an end of link of one end of described synchronous mounting rack and each described link is rotatably connected by bearing pin, and the two ends of described bearing pin cooperate with via clearance on the cell wall of described through slot.Adopt the structure of yoke can remove unnecessary metal, make described synchronous mounting rack compact structure, alleviate the weight of entire mechanism in a large number, and don't lose the desired mechanical property of described synchronous mounting rack, so very useful for the raising of performance of the present invention.
As further improvement, described Runner assembly comprises bent axle and rotating disk, and described bent axle is fixed by welding in described rotating disk, the vertical described rotating disk of described bent axle; The be rotatably connected the other end and the described bent axle that are meant described link of the other end of described link and described Runner assembly is rotatably connected; Described Runner assembly is meant that with the inner ring of described change slurry distance between bearing is fixedly connected described rotating disk is connected by screw with the inner ring of described change slurry distance between bearing.Because adopted bent axle, thus link increase for the rotation arm of force of described rotating disk, thereby make moment of rotation bigger, help transmission, improved the transmission efficiency height.
As further improvement, described link is a connecting rod.Because bar linkage structure is simple, connect reliably, so very useful for the raising of cost performance of the present invention.
Description of drawings
Fig. 1 is the plan view of the change slurry spacing mechanism of wind-driven generator of the present invention.
Fig. 2 is the sectional view of the change slurry spacing mechanism of wind-driven generator of the present invention.
Fig. 3 is the right elevation of the change slurry spacing mechanism of wind-driven generator of the present invention.
Fig. 4 is the Runner assembly plan view of the change slurry spacing mechanism of wind-driven generator of the present invention.
Fig. 5 is the Runner assembly and the plan view that becomes after the slurry distance between bearing is connected of the change slurry spacing mechanism of wind-driven generator of the present invention.
Fig. 6 is the kinematic sketch of mechanism about a change slurry distance between bearing of the change slurry spacing mechanism of wind-driven generator of the present invention.
Shown in the figure, 1, become the slurry distance between bearing, 1.1, inner ring, 1.2, the outer ring, 2, crotch, 3, wheel hub, 4, nut, 5, bearing, 6, leading screw, 7, guide rod, 8, bearing pin, 9, connecting rod, 10, bent axle, 11, protecgulum, 12, motor, 13, motor mount, 14, coupling, 15, bonnet, 16, gland, 17, rotating disk, 18, the guide rod fitting seat, 19, yoke.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Be the plan view of the change slurry spacing mechanism of wind-driven generator of the present invention as shown in Figure 1.
The change slurry spacing mechanism of described wind-driven generator comprises wheel hub 3, Power Component, a plurality of change slurry distance between bearing 1, described wheel hub 3 is made of the protecgulum 11 and the bonnet 15 of the axis of the formed curved surface of axis that centers on described wheel hub 3, vertical described wheel hub 3, fixedly connected with the curved surface of described wheel hub 3 in the outer ring 1.2 of described change slurry distance between bearing 1, described change slurry distance between bearing 1 is evenly distributed on the curved surface of described wheel hub 3, and it also comprises power screw assembly, synchronous mounting rack, link, Runner assembly; Described power screw assembly cooperates with the center hole of described protecgulum 11 and described bonnet 15 is rotatable respectively, and described power screw assembly is connected with described Power Component; The part that described power screw assembly is connected with described Power Component is positioned at the outside of described wheel hub 3, the remaining part of described power screw assembly is positioned at the inside of described wheel hub 3, described synchronous mounting rack, link, Runner assembly all are positioned at the inside of described wheel hub 3, each described change slurry distance between bearing 1 corresponding Runner assembly, the corresponding link of each described Runner assembly; Described power screw assembly is fixedlyed connected with described synchronous mounting rack; One end of described synchronous mounting rack and each described link is rotatably connected, and the center that described link is evenly distributed on described synchronous mounting rack is on the circumference in the center of circle, and the plane at described circumference place and the axis of described wheel hub 3 are perpendicular; The other end of described link and described Runner assembly are rotatably connected; Described Runner assembly is fixedlyed connected with the inner ring 1.1 of described change slurry distance between bearing 1.Concrete structure as shown in Figure 2.
The outer ring 1.2 of described change slurry distance between bearing 1 is connected by screw with the curved surface of described wheel hub 3 with the fixedly connected outer ring 1.2 of described change slurry distance between bearing 1 that is meant of the curved surface of described wheel hub 3.Described change slurry distance between bearing 1 is evenly distributed on the curved surface of described wheel hub 3 and is meant that the center line of each described change slurry distance between bearing 1 intersects at same point, this point is positioned on the axis of described wheel hub 3, and the angle of the center line of adjacent described change slurry distance between bearing 1 equates that concrete structure as shown in Figure 3.
As shown in Figure 2, it also comprises guide rod 7 and guide rod fitting seat 18, the parallel axes of the axis of described guide rod 7 and described wheel hub 3; The through hole sliding fit of described guide rod 7 and guide rod fitting seat 18; One end of described guide rod 7 is fixedly installed on the described protecgulum 11, and the other end of described guide rod 7 is fixedly installed on the described bonnet 15; Described guide rod fitting seat 18 is connected by screw with described synchronous mounting rack.
Described power screw assembly is a ball screw pair, and the axis of the leading screw 6 of this ball screw pair and the axis of described wheel hub 3 are same straight line, and the model of described ball screw pair is CDM4008-3; Match with the center hole of described protecgulum 11 and the described bonnet 15 respectively inner ring interference fit of the bearing 5 in polished rod part and the center hole that is installed in described protecgulum 11 and described bonnet 15 of the leading screw 6 that is meant described ball screw pair of described power screw assembly, the polished rod of the leading screw 6 of described ball screw pair partly is positioned at the two ends of described leading screw 6, and the screw thread of described leading screw 6 is between described polished rod part; Described power screw assembly is connected the leading screw 6 that is meant described ball screw pair and is connected with described Power Component with described Power Component.Concrete structure as shown in Figure 2.
Described Power Component comprises motor 12, motor mount 13 and coupling 14; Described motor mount 13 is installed on the described protecgulum 11, and described power screw assembly is connected with described Power Component and is meant that described power screw assembly is connected with described coupling 14.
Described synchronous mounting rack has the crotch 2 of a plurality of identical yokes 19, and each yoke 19 is installed a link, and the angle of described adjacent yoke 19 equates that the end of described yoke 19 has a through slot along the axial direction of described leading screw 6; Described power screw assembly is fixedlyed connected with described synchronous mounting rack and is meant, the nut 4 of described ball screw pair and the center hole Spielpassung of described synchronous mounting rack are equipped with gland 16 in the both sides of the center hole of described synchronous mounting rack; The length of described nut 4 is slightly less than or equals the length of the center hole of described synchronous mounting rack; Leading screw 6 Spielpassung of described gland 16 and described ball screw pair, described gland 16 is connected by screw with described synchronous mounting rack; Described like this gland 16 just is pressed on described nut 4 in the center hole of described synchronous mounting rack, guarantee that described nut 4 does not have relative displacement with the center hole of synchronous mounting rack, that is to say that moving of described nut 4 will drive synchronous mounting rack and reliably move, described nut 4 does not have relative movement with synchronous mounting rack; The be rotatably connected through slot of the yoke 19 that is meant described synchronous mounting rack and an end of link of one end of described synchronous mounting rack and each described link is rotatably connected by bearing pin 8, and the two ends of described bearing pin 8 cooperate with via clearance on the cell wall of described through slot.Concrete structure as shown in Figure 2.
Described Runner assembly comprises bent axle 10 and rotating disk 17, and described rotating disk 17 has center hole, and described bent axle 10 is fixed by welding in described rotating disk 17, described bent axle 10 vertical described rotating disks 17; The be rotatably connected the other end and the described bent axle 10 that are meant described link of the other end of described link and described Runner assembly is rotatably connected; The inner ring 1.1 of described Runner assembly and described change slurry distance between bearing 1 is fixedly connected to be meant that described rotating disk 17 and described change starch the inner ring 1.1 of distance between bearing 1 and be connected by screw.Concrete structure is shown in Fig. 2,4,5.
Described link is a connecting rod 9.As shown in Figure 2, described connecting rod 9 two ends have through hole, and the two ends of described connecting rod 9 are rotatably connected with described yoke 19, described bent axle 10 respectively by described through hole.
Described yoke 19, connecting rod 9, bent axle 10 and rotating disk 17 constitute typical slidercrank mechanism, and kinematic sketch of mechanism as shown in Figure 6.When the nut 4 of described ball screw pair moved axially, described nut 4 drove described crotch 2 and moves axially, and just yoke 19 straight lines move, and the straight line of described yoke 19 moves through described slidercrank mechanism and drives described rotating disk 17 rotations.Present embodiment is to have three change slurry spacing mechanisms that become the wind-driven generator of slurry distance between bearing 1, so three identical described slidercrank mechanisms are arranged.
When needs to wind-driven generator become slurry apart from the time, motor 12 rotates, the nut 4 of described ball screw pair will move axially, described nut 4 drives described crotch 2 and moves axially, the yoke 19 of so described crotch 2 moves with regard to straight line, the inner ring 1.1 of described change slurry distance between bearing 1 just rotates by the transmission of above-mentioned slidercrank mechanism, present embodiment is to have three change slurry spacing mechanisms that become the wind-driven generator of slurry distance between bearing 1, three inner rings 1.1 that become slurry distance between bearing 1 will turn over an angle simultaneously by equidirectional so, because the blade of wind-driven generator is fixedlyed connected with the inner ring 1.1 of described change slurry distance between bearing 1, so the inner ring 1.1 of described change slurry distance between bearing 1 will drive the blade of wind-driven generator and rotate simultaneously, so just realized the change slurry distance of wind-driven generator, and in that to become slurry slurry elongation of each blade in the process consistent all the time.
Below only just preferred embodiment of the present invention be described, but can not be interpreted as it is restriction to claim.Structure of the present invention can have other variations, is not limited to said structure, such as: described power screw assembly can be the lead screw pair.In a word, all various variations of being done in the protection domain of product independent claims of the present invention are all in protection scope of the present invention.
Claims (6)
1, a kind of change slurry spacing mechanism of wind-driven generator, it comprises wheel hub (3), Power Component, a plurality of change slurry distance between bearing (1), described wheel hub (3) is by the formed curved surface of axis around described wheel hub (3), the protecgulum (11) of the axis of vertical described wheel hub (3) and bonnet (15) constitute, fixedly connected with the curved surface of described wheel hub (3) in the outer ring (1.2) of described change slurry distance between bearing (1), described change slurry distance between bearing (1) is evenly distributed on the curved surface of described wheel hub (3), and it is characterized in that: it also comprises the power screw assembly, synchronous mounting rack, link, Runner assembly; Described power screw assembly cooperates with the center hole of described protecgulum (11) and described bonnet (15) is rotatable respectively, and described power screw assembly is connected with described Power Component; The part that described power screw assembly is connected with described Power Component is positioned at the outside of described wheel hub (3), the remaining part of described power screw assembly is positioned at the inside of described wheel hub (3), described synchronous mounting rack, link, Runner assembly all are positioned at the inside of described wheel hub (3), the corresponding Runner assembly of each described change slurry distance between bearing (1), the corresponding link of each described Runner assembly; Described power screw assembly is fixedlyed connected with described synchronous mounting rack; One end of described synchronous mounting rack and each described link is rotatably connected, and the center that described link is evenly distributed on described synchronous mounting rack is on the circumference in the center of circle, and the axis of the plane at described circumference place and described wheel hub (3) is perpendicular; The other end of described link and described Runner assembly are rotatably connected; Described Runner assembly is fixedlyed connected with the inner ring (1.1) of described change slurry distance between bearing (1).
2, the change of wind-driven generator according to claim 1 slurry spacing mechanism, it is characterized in that: it also comprises guide rod (7) and guide rod fitting seat (18), the parallel axes of the axis of described guide rod (7) and described wheel hub (3); The through hole sliding fit of described guide rod (7) and guide rod fitting seat (18); One end of described guide rod (7) is fixedly installed on the described protecgulum (11), and the other end of described guide rod (7) is fixedly installed on the described bonnet (15); Described guide rod fitting seat (18) is connected by screw with described synchronous mounting rack.
3, the change of wind-driven generator according to claim 1 slurry spacing mechanism, it is characterized in that: described power screw assembly is a ball screw pair, the axis of the axis of the leading screw of this ball screw pair (6) and described wheel hub (3) is same straight line; Match with the center hole of described protecgulum (11) and described bonnet (15) the respectively inner ring interference fit of the interior bearing (5) of polished rod part and the center hole that is installed in described protecgulum (11) and described bonnet (15) of the leading screw (6) that is meant described ball screw pair of described power screw assembly; Described power screw assembly is connected the leading screw (6) that is meant described ball screw pair and is connected with described Power Component with described Power Component.
4, starch spacing mechanism according to the change of claim 1 or 3 described wind-driven generators, it is characterized in that: described synchronous mounting rack has the crotch (2) of a plurality of identical yokes (19), each yoke (19) is installed a link, the angle of described adjacent yoke (19) equates that the end of described yoke (19) has a through slot along the axial direction of described leading screw (6); Described power screw assembly is fixedlyed connected with described synchronous mounting rack and is meant, the center hole Spielpassung of the nut of described ball screw pair (4) and described synchronous mounting rack is equipped with gland (16) in the both sides of the center hole of described synchronous mounting rack; The length of described nut (4) is slightly less than or equals the length of the center hole of described synchronous mounting rack; Leading screw (6) Spielpassung of described gland (16) and described ball screw pair, described gland (16) is connected by screw with described synchronous mounting rack; The be rotatably connected through slot of the yoke (19) that is meant described synchronous mounting rack and an end of link of one end of described synchronous mounting rack and each described link is rotatably connected by bearing pin (8), and the two ends of described bearing pin (8) cooperate with via clearance on the cell wall of described through slot.
5, the change of wind-driven generator according to claim 1 slurry spacing mechanism, it is characterized in that: described Runner assembly comprises bent axle (10) and rotating disk (17), described bent axle (10) is fixed by welding in described rotating disk (17), the vertical described rotating disk of described bent axle (10) (17); The be rotatably connected the other end and the described bent axle (10) that are meant described link of the other end of described link and described Runner assembly is rotatably connected; Described Runner assembly is connected by screw with the inner ring (1.1) of described change slurry distance between bearing (1) with the fixedly connected described rotating disk (17) that is meant of the inner ring (1.1) of described change slurry distance between bearing (1).
6, the change of wind-driven generator according to claim 1 slurry spacing mechanism, it is characterized in that: described link is connecting rod (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101219311A CN101392726A (en) | 2008-10-23 | 2008-10-23 | Pulp distance varying mechanism of wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101219311A CN101392726A (en) | 2008-10-23 | 2008-10-23 | Pulp distance varying mechanism of wind power generator |
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| CN101392726A true CN101392726A (en) | 2009-03-25 |
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| CNA2008101219311A Pending CN101392726A (en) | 2008-10-23 | 2008-10-23 | Pulp distance varying mechanism of wind power generator |
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| CN101825064A (en) * | 2010-05-11 | 2010-09-08 | 无锡风电设计研究院有限公司 | Wind generating set capable of fine adjusting attack angle of blade |
| CN101832338A (en) * | 2010-05-11 | 2010-09-15 | 无锡风电设计研究院有限公司 | Coaxially connecting bearing assembly |
| CN101929429A (en) * | 2009-06-22 | 2010-12-29 | 住友重机械工业株式会社 | The reduction gear for pitch driving device of wind-power electricity generation |
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| CN102032100B (en) * | 2009-10-07 | 2015-06-03 | Ssb风系统两合公司 | Rotor for a wind power plant |
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| CN101825064B (en) * | 2010-05-11 | 2014-12-10 | 无锡风电设计研究院有限公司 | Wind generating set capable of fine adjusting attack angle of blade |
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| CN101832338A (en) * | 2010-05-11 | 2010-09-15 | 无锡风电设计研究院有限公司 | Coaxially connecting bearing assembly |
| CN101832338B (en) * | 2010-05-11 | 2016-01-20 | 无锡风电设计研究院有限公司 | A kind of coaxially connecting bearing assembly |
| CN101825064A (en) * | 2010-05-11 | 2010-09-08 | 无锡风电设计研究院有限公司 | Wind generating set capable of fine adjusting attack angle of blade |
| CN102242693A (en) * | 2010-05-12 | 2011-11-16 | 陈显锋 | Wind wheel of wind driven generator |
| CN101975143A (en) * | 2010-11-19 | 2011-02-16 | 宁波锦浪新能源科技有限公司 | Stabilized-speed pitch control device of wind-driven generator |
| CN102338032A (en) * | 2011-09-08 | 2012-02-01 | 江苏金风风电设备制造有限公司 | Electric blade-changing system of wind generating set |
| CN104514687A (en) * | 2013-09-30 | 2015-04-15 | Gu株式会社 | Blade pitch controller for small-scale wind power generation system |
| CN105118373A (en) * | 2015-09-17 | 2015-12-02 | 南京康尼科技实业有限公司 | Variable-pitch drive mechanism for wind power generation teaching and practice training equipment |
| CN107963195A (en) * | 2016-10-20 | 2018-04-27 | 北京精密机电控制设备研究所 | A kind of variable-distance propulsion device for submarine navigation device |
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