CN102536647A - Feathering shutdown mechanism of small and medium sized wind driven generators - Google Patents
Feathering shutdown mechanism of small and medium sized wind driven generators Download PDFInfo
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- CN102536647A CN102536647A CN2011103778497A CN201110377849A CN102536647A CN 102536647 A CN102536647 A CN 102536647A CN 2011103778497 A CN2011103778497 A CN 2011103778497A CN 201110377849 A CN201110377849 A CN 201110377849A CN 102536647 A CN102536647 A CN 102536647A
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- fan blade
- synchronous disk
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- coupling shaft
- synchronous disc
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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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Abstract
The invention relates to a feathering shutdown mechanism for small and medium sized wind driven generators, which mainly comprises a hub, a hub housing, a reciprocating pull rod, a radial tube and a fan blade connecting shaft. The fan blade connecting shaft is connected with the radial tube through a tapered roller bearing and an oil seal, a driving arm is arranged on the blade connecting shaft, a fixed synchronous disc is arranged at the internal center of the hub and provided with a guide pillar, a movable synchronous disc is sleeved on the guide pillar, a compression spring is sleeved on the guide pillar between the fixed synchronous disc and the movable synchronous disc, the reciprocating pull rod penetrates through the center of the hub, the center of the fixed synchronous disc and the center of the movable synchronous disc sequentially, two nuts are arranged at one end opening, and a connecting arm is arranged on the movable synchronous disc and is connected with the driving arm at the tail end of the blade connecting shaft through a connecting rod. When the reciprocating rod moves linearly and horizontally, the movable synchronous disc is driven by the reciprocating rod, the blade connecting shaft is driven to rotate around the axis thereof under driving of the connecting arm, the connecting rod and the driving arm, and the variation range of the whole rotation angle is larger than 90 degrees.
Description
Technical field
The present invention relates to technical field of wind power generator, particularly middle-size and small-size wind-driven generator feathering knock-off gear.
Background technique
Existing middle-size and small-size wind power generating set is commonly the fixed pitch blower fan, adopt driftage, electromagnetism etc. to shut down control mode, and the shutdown effect is often unsatisfactory, in strong wind weather, has serious potential safety hazard.And middle-size and small-size pitch-controlled wind-driven generator in the market often adopts the negative angle knock-off gear, and the angle control of shutting down negative angle is quite complicated, often takes place owing to the inaccurate situation that causes the wind wheel counter-rotating maybe can't shut down of negative angle angle control.
Summary of the invention
The objective of the invention is provides a kind of shutdown stable performance for the deficiency that solves above-mentioned technology, becomes the rational middle-size and small-size wind-driven generator feathering knock-off gear of oar drive mechanism.
In order to achieve the above object, the middle-size and small-size wind-driven generator feathering knock-off gear that the present invention designed, its main wheel hub, hubcap, reciprocal pull bar, radial canal and fan blade coupling shaft; Radial canal is connected with wheel hub, and the fan blade coupling shaft is connected with radial canal with oil sealing through tapered roller bearing, and fan blade coupling shaft end stretches in the wheel hub; And being provided with moving arm endways, the fan blade coupling shaft the other end is connected with fan blade through adpting flange, is provided with fixedly synchronous disk in wheel hub inside center position; Fixedly synchronous disk is provided with directional post, on directional post, is arranged with mobile synchronous disk, is provided with two nuts in the directional post outer end; Fixedly be arranged with stage clip on the directional post between synchronous disk and the mobile synchronous disk; Described reciprocal pull bar passes the wheel hub center successively, fixedly synchronous disk center and mobile synchronous disk center, and be provided with two nuts at port; On mobile synchronous disk, be provided with link arm, link arm is connected with the terminal moving arm of fan blade coupling shaft through connecting rod.This structure; When utilizing reciprocal pull bar horizontal rectilinear motion, back and forth pull bar unclamps moving the restriction of synchronous disk, and stage clip struts and moves synchronous disk and the fixing distance between the synchronous disk; Moving synchronous disk drive link arm moves horizontally; Link arm draws the moving arm that changes on the fan blade coupling shaft through connecting rod, thereby realizes the rotation of fan blade coupling shaft and fan blade, realizes the feathering shutdown.
The resulting middle-size and small-size wind-driven generator feathering knock-off gear of the present invention; When back and forth pull bar carries out horizontal rectilinear motion; Move synchronous disk by the rocker arm pulling, after link arm, connecting rod, moving arm transmission, finally be passed to the fan blade coupling shaft; Make the fan blade coupling shaft around its axle center rotation, whole angle of swing excursion is greater than 90 °.Therefore, blower fan can make fan blade angle be changed to 90 ° through rocker arm control when moving with the fan blade operation angle, thereby realizes feathering shutdown function.
Description of drawings
Fig. 1-the 1st, present embodiment blower fan feathering knock-off gear feathering outage state leeward leaf state figure;
Fig. 1-2 is a present embodiment blower fan feathering knock-off gear feathering outage state lower hub sectional view;
Fig. 1-the 3rd, isometric view under the present embodiment blower fan feathering knock-off gear feathering outage state;
Fig. 2-the 1st, present embodiment blower fan feathering knock-off gear open state leeward leaf state figure;
Fig. 2-the 2nd, present embodiment blower fan feathering knock-off gear open state lower hub sectional view;
Fig. 2-the 3rd, isometric view under the present embodiment blower fan feathering knock-off gear open state.
Embodiment
Combine accompanying drawing that the present invention is done further description through embodiment below.
Embodiment 1:
Shown in Fig. 1-2, Fig. 2-2, the middle-size and small-size wind-driven generator feathering knock-off gear that present embodiment is described, its main wheel hub 14, hubcap 1, back and forth pull bar 2, radial canal 11 and fan blade coupling shaft 9; Radial canal 11 is connected with wheel hub 14, and fan blade coupling shaft 9 is connected with radial canal 11 with oil sealing 4 through tapered roller bearing 10, and fan blade coupling shaft 9 ends stretch in the wheel hub 14; And be provided with moving arm 12 endways; Fan blade coupling shaft 9 the other ends are connected with fan blade 15 through adpting flange, are provided with fixedly synchronous disk 6 in wheel hub 14 inside center positions, and fixedly synchronous disk 6 is provided with directional post 3; On directional post 3, be arranged with and move synchronous disk 5; Be provided with two nuts 13 in directional post 3 outer ends, fixedly be arranged with stage clip 16 on the directional post 3 between synchronous disk 6 and the mobile synchronous disk 5, described reciprocal pull bar 2 passes wheel hub 14 centers successively; Fixedly synchronous disk 6 centers and mobile synchronous disk 5 centers; And be provided with two nuts 13 at port, and on mobile synchronous disk 5, being provided with link arm 7, link arm 7 is connected through the moving arms 12 of connecting rod 8 with fan blade coupling shaft 9 ends.
Shown in Fig. 2-2,2-3, this moment, wind-driven generator was in the start running state, and radial canal 11 is through on bolt and the wheel hub 14, and fan blade coupling shaft 9 is connected with radial canal 11 through tapered roller bearing 10, round nut 13 and oil sealing 4.Fan blade coupling shaft 9 axially can not be gone here and there after assembling, and can in radial canal 11, rotate around the axle center, and tapered roller bearing 10 adopts dorsad to be installed, and when fan blade 15 rotations, bears centripetal force, centrifugal force.Move synchronous disk 5 and is connected fixingly through round nut 13 with reciprocal pull bar 2, and under the effect of reciprocal pull bar 2, be positioned near fixing synchronous disk 6 positions, spring 16 is in the tightly state that compresses also.Link arm 12 moves on the synchronous disk 5 through being bolted to, and one of two joint shaft bearing at connecting rod 8 two ends and link arm 7 are connected through latch, and another and link arm 7 are connected use screw mandrel connection between two joint shaft bearings through latch.Fan blade coupling shaft 9 is terminal to be fixedly connected flange end connection fan blade 15 with moving arm 12 through tight fixed bolt.Move synchronous disk 5 and make the fan blade coupling shaft be in fan blade 15 operation angle states through link arm 7, connecting rod 8, moving arm 12, shown in Fig. 2-1, this moment, fan blade 15 was 0 ° of propeller pitch angle running state of facining the wind.Hubcap 1 and wheel hub 14 are connected through bolt, make the wind wheel inner sealing, prevent the component corrosion.When the feathering knock-off gear is installed assembling, can move synchronous disk 5 and fixedly the distance between the synchronous disk 6 and connecting rod 8 length scale are controlled the operation angle of fan blade 15 through controlling.
Shown in Fig. 1-2,1-3; When blower fan need be shut down, release towards hubcap 1 direction level by reciprocal pull bar 2, fixedly synchronous disk 6 and wheel hub 14 are connected through bolt; Directional post 3 is connected fixing with fixing synchronous disk 6; Move synchronous disk 5 in directional post 3 effects down to hubcap 1 direction rectilinear translation, and drive link arm 7, connecting rod 8, moving arm 12 fan blade coupling shaft 9 rotated around its axle center, spring 16 resets.After back and forth pull bar 2 is released certain distance, limit its displacement by round nut 13; Fan blade coupling shaft 9 half-twists make fan blade 15 be in 90 ° of feathering states, shown in Fig. 1-1; At this moment; Because fan blade 15 aerodynamic qualities, wind does not produce the running torque around the wind wheel center at fan blade 15, thereby realizes feathering shutdown function.
Claims (1)
1. one kind middle-size and small-size wind-driven generator feathering knock-off gear, its main wheel hub, hubcap, back and forth pull bar, radial canal and fan blade coupling shaft, radial canal is connected with wheel hub; It is characterized in that the fan blade coupling shaft is connected with radial canal with oil sealing through tapered roller bearing, fan blade coupling shaft end stretches in the wheel hub, and is provided with moving arm endways; The fan blade coupling shaft the other end is connected with fan blade through adpting flange, is provided with fixedly synchronous disk in wheel hub inside center position, and fixedly synchronous disk is provided with directional post; On directional post, be arranged with mobile synchronous disk; Be provided with two nuts in the directional post outer end, fixedly be arranged with stage clip on the directional post between synchronous disk and the mobile synchronous disk, described reciprocal pull bar passes the wheel hub center successively; Fixedly synchronous disk center and mobile synchronous disk center; And be provided with two nuts at port, and being provided with link arm moving on the synchronous disk, link arm is connected through the moving arm of connecting rod with fan blade coupling shaft end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103778497A CN102536647A (en) | 2011-11-24 | 2011-11-24 | Feathering shutdown mechanism of small and medium sized wind driven generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103778497A CN102536647A (en) | 2011-11-24 | 2011-11-24 | Feathering shutdown mechanism of small and medium sized wind driven generators |
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| Publication Number | Publication Date |
|---|---|
| CN102536647A true CN102536647A (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103778497A Pending CN102536647A (en) | 2011-11-24 | 2011-11-24 | Feathering shutdown mechanism of small and medium sized wind driven generators |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314758A (en) * | 2014-10-16 | 2015-01-28 | 张成革 | Centrifuging and paddle varying device of wind driven generator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0366071A (en) * | 1989-08-03 | 1991-03-20 | Sharp Corp | Rotary head type data recording/reproducing device |
| JPH09166071A (en) * | 1995-12-15 | 1997-06-24 | Konno Tekkosho:Kk | Wind mill for wind power generation |
| WO2003071129A1 (en) * | 2002-02-25 | 2003-08-28 | Iskra Wind Turbine Manufacturers Ltd. | Passive speed and power regulation of a wind turbine |
| CN201858091U (en) * | 2010-10-22 | 2011-06-08 | 浙江华鹰风电设备有限公司 | Negative-angle pitch-controlled stopping mechanism for wind-driven generator |
| CN202360299U (en) * | 2011-11-24 | 2012-08-01 | 浙江华鹰风电设备有限公司 | Feathering shut-down mechanism of small and medium-sized wind driven generator |
-
2011
- 2011-11-24 CN CN2011103778497A patent/CN102536647A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0366071A (en) * | 1989-08-03 | 1991-03-20 | Sharp Corp | Rotary head type data recording/reproducing device |
| JPH09166071A (en) * | 1995-12-15 | 1997-06-24 | Konno Tekkosho:Kk | Wind mill for wind power generation |
| WO2003071129A1 (en) * | 2002-02-25 | 2003-08-28 | Iskra Wind Turbine Manufacturers Ltd. | Passive speed and power regulation of a wind turbine |
| CN201858091U (en) * | 2010-10-22 | 2011-06-08 | 浙江华鹰风电设备有限公司 | Negative-angle pitch-controlled stopping mechanism for wind-driven generator |
| CN202360299U (en) * | 2011-11-24 | 2012-08-01 | 浙江华鹰风电设备有限公司 | Feathering shut-down mechanism of small and medium-sized wind driven generator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314758A (en) * | 2014-10-16 | 2015-01-28 | 张成革 | Centrifuging and paddle varying device of wind driven generator |
| CN104314758B (en) * | 2014-10-16 | 2017-03-15 | 张成革 | Wind-driven generator centrifugal variation paddle device |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |