CN103233866A - Wind wheel locking structure of wind generating set - Google Patents
Wind wheel locking structure of wind generating set Download PDFInfo
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- CN103233866A CN103233866A CN2013101549488A CN201310154948A CN103233866A CN 103233866 A CN103233866 A CN 103233866A CN 2013101549488 A CN2013101549488 A CN 2013101549488A CN 201310154948 A CN201310154948 A CN 201310154948A CN 103233866 A CN103233866 A CN 103233866A
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- internal spline
- frame
- external splines
- wind wheel
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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 discloses a wind wheel locking structure of a wind generating set. The wind wheel locking structure of the wind generating set comprises a frame and a wind wheel rotation body, wherein the wind wheel rotation body is fixedly connected with an external spline, an internal spline is movably assembled on the frame through a push-and-pull mechanism and corresponds to and matches with the external spline on the wind wheel rotation body, the axial extending or withdrawing of the internal spline on the frame is achieved under the action of pushing or pulling of the push-and-pull mechanism, the extended internal spline is used for being engaged with the external spline, and the withdrawn internal spline is used for being separated from the external spline. According to the wind wheel locking structure of the wind generating set, the set of matched external spline and internal spline can maintain a good concentricity in use and has a good assembly flexibility and practicability, and every engaged tooth can be stressed in balance, uniformly, reliably and stably when the external spline and the internal spline are engaged, and accordingly the wind wheel rotation body and the frame can be in accurate, reliable, and efficient locking and the locking force is reliable and stable.
Description
Technical field
The present invention relates to wind power generating set, specifically is a kind of wind-driven generator group wind-wheel locking mechanism.
Background technique
Wind power generating set is high aerial operation out of doors for a long time, stands various abominable physical environments, occurs various faults in running easily, needs in time it to be safeguarded.Wind power generating set is when safeguarding, need to guarantee that wind wheel keeps the wind wheel invariant position safeguarding of design under the operating mode, to guarantee attendant's personal safety and carrying out smoothly of maintenance work, otherwise moment strong wind, extreme wind shear or unit off-grid etc. in particular cases, security incident very easily takes place; Therefore, in the wind power generating set maintenance process, wind wheel must be locked in frame, to guarantee maintenance work safety, to carry out smoothly.
At present, the wind wheel locking structure of wind power generating set is mainly mechanical lock structure, this mechanical lock mainly is made of many spring bolts that are fixed on the locking plate on the wind wheel and be assemblied on the frame, be provided with a plurality of lockholes at locking plate, after the wind power generating set fault, rely on the pneumatic or water brake on the unit to carry out reduction of speed, stop, many spring bolts axially stretch out under the effect of hydraulic power, in the lockhole of corresponding insertion locking plate, realize the locking of wind wheel on frame with this, for example (publication number: CN 202117860 discloses day: on January 18th, 2012) to Chinese patent literature disclosed " blower fan and wind wheel locking device thereof ".Though this mechanical lock can make wind wheel realize locking in frame, but they are many to pin, the locking mode that the hole cooperates causes its reliability and validity very limited, this be because: each component of mechanical lock the design, all can there be certain reasonable error in the processes such as processing and installation, this error causes each lockhole axis of locking plate on the wind wheel all not realize overlapping with the axis of each spring bolt on the frame, thereby when causing the wind wheel locking, spring bolt can not be accurate, insert in the lockhole of locking plate reliably, even spring bolt inserts in the lockhole of locking plate, because spring bolt is difficult to realize effective centering with the lockhole of locking plate, spring bolt and locking plate can form inhomogeneous contact stressed, directly cause spring bolt or locking plate local plastic to occur because bearing load is excessive and lost efficacy, may bring serious potential safety hazard; If will eliminate the serious consequence of bringing because of aforementioned error, must guarantee that each component of mechanical lock a bit error can not occur in processes such as design, processing and installation, this requirement is difficult to realize in actual mechanical process.
For reliability and the validity that improves mechanical lock, a kind of monolock hole locking plate is arranged in the prior art, namely have only a lockhole on the locking plate, when wind wheel locked, spring bolt was easier to aim at accurately, reliably the lockhole on the locking plate and inserts.But, the complex structure of wind power generating set, bulky, weight tens tons up to a hundred that weigh, only depending on single spring bolt to insert in the locking plate makes wind wheel lock in frame, this need strengthen the structural strength of spring bolt and locking plate greatly, the reinforcement of this structural strength has comprised size increase, material upgrading etc., make that the manufacture cost of mechanical lock is very high, poor practicability; Nonetheless, also be difficult to guarantee wind wheel positive lock on frame, reliability and poor stability bulky, Heavy Weight.
Summary of the invention
The objective of the invention is to: at above-mentioned the deficiencies in the prior art, provide a kind of simple in structure, easy to operate, cost is low, reliability is high, practical, can make wind wheel effective wind-driven generator group wind-wheel locking mechanism of locking on frame.
The technical solution used in the present invention is: a kind of wind-driven generator group wind-wheel locking mechanism, comprise that frame and wind wheel turn, described wind wheel is fixedly connected with external splines on turning, be equipped with internal spline by the push-pull mechanism activity on the described frame, this internal spline and corresponding, the coupling of external splines on wind wheel is turned, under the promotion or pulling function of push-pull mechanism, internal spline is realized axial overhanging or back in frame, overhanging internal spline is as meshing with external splines, and the internal spline that backs is as separating with external splines.
Further, the periphery of described internal spline is provided with restraining groove/tooth; Position limit pin/tooth corresponding with restraining groove/tooth on the internal spline, coupling is fixedly arranged on the frame of described external splines periphery correspondence; Described position limit pin/tooth is used as when internal spline and external splines engagement internal spline is fixed.
Further, the engaging tooth on described external splines and the internal spline is respectively double circular arc tooth.
Described external splines is fixedly connected on main shaft and connects on the flange circumference of wind wheel.
Described push-pull mechanism is electronic push-pull mechanism or hydraulic pressure push-pull mechanism.
Described push-pull mechanism is assemblied on the spindle bearing holder of frame.
The invention has the beneficial effects as follows: coupling, complete external splines and internal spline in use can keep good concentricity, install flexible big, turn relative frame when being in arbitrary position at wind wheel, all can make the engagement of external splines and internal spline, each engaging tooth of engagement back can be evenly, balance, reliable, stable stressed, thereby wind wheel is turned to be realized accurately with frame, reliable, effectively locking, down auxiliary at frame upper arresting pin/tooth, the coupling mechanism force of internal spline and external splines is reliable, stable, practical.It has reasonable in design, compact structure is simple, cost is low, easy to operate, reliability is high, good stability, characteristics such as practical.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is a kind of structural representation of the present invention.
Code name implication among the figure: 1-wind wheel; 2-external splines; 3-internal spline; 4-push-pull mechanism; 5-spindle bearing holder; 6-main shaft bearing; 7-main shaft; 8-limiting tooth.
Embodiment
Referring to Fig. 1: the present invention includes frame and wind wheel is turned, wind wheel is turned and is referred to link together wind wheel 1 and main shaft 7.Main shaft 7 is assemblied in by main shaft bearing 6 on the spindle bearing holder 5 of frame, and with the rigidly affixed external splines 2 that is connected with, the outer wall circumference of this external splines 2 is provided with the engaging tooth of a plurality of outer lug on the flange circumference of main shaft 7 connection wind wheels 1; Spindle bearing holder 5 in frame is equipped with push-pull mechanism 4, this push-pull mechanism is electronic push-pull mechanism, namely the screw mandrel that connects by the motor output shaft end carries out axial stretching control, push-pull mechanism 4 outward an end of spline 2 be connected with internal spline 3, the inwall circumference of this internal spline 3 is provided with the engaging tooth of a plurality of internal projection, internal spline 3 should with main shaft 7 flanges on external splines 2 corresponding, couplings.Under the impetus of push-pull mechanism 4, the internal spline 3 that is assemblied on the frame by push-pull mechanism 4 activities carries out axial stretching out, until with main shaft 7 flanges on external splines 2 engagement, with this wind wheel of independent rotation is turned and reliable, the effective locking of fixed frame realization, convenient and guarantee maintenance work; After maintenance work was finished, under the pulling function of push-pull mechanism 4, internal spline 3 carried out axial inwardly backing, and until separating with external splines 2 on main shaft 7 flanges, made the recovery " body of freedom " of turning of the wind wheel of independent rotation with this.
In order to prevent producing circumferential rotation under external force after internal spline 3 and external splines 2 engagements, be provided with limiting tooth 8 at the outer wall circumference of above-mentioned internal spline 3; The corresponding frame of outer wall circumference of external splines 2 fixedly have with internal spline 3 on the limiting tooth of 8 corresponding, the coupling of limiting tooth; When internal spline 3 axially extension under the impetus of push-pull mechanism 4, until meshing with external splines 2, in the two engagement, limiting tooth 8 and the corresponding frame upper limit of external splines 2 outer wall circumference tooth on the internal spline 3 produce engagement, and be stable more, reliable, effective with this locking that wind wheel is turned on frame.
For the engaging tooth that makes external splines 2 and internal spline 3 is regularly realized evenly at engaging lock, balance, reliable, stable stressed, the engaging tooth on external splines 2 and the internal spline 3 adopts double circular arc tooth respectively.
Limiting tooth 8 on the above-mentioned internal spline 3 can adopt restraining groove to replace, when the limit structure on the internal spline 3 outer wall circumference adopts restraining groove, fixing limiting tooth should adopt position limit pin to replace on the corresponding frame of external splines 2 outer wall circumference so that the limit structure on the frame can with internal spline 3 on corresponding, the coupling of limit structure.
Above-mentioned push-pull mechanism 4 can also adopt the hydraulic pressure push-pull mechanism of hydraulic cylinder structure except adopting electronic push-pull mechanism.
The present invention also is suitable for the vertical axis aerogenerator group except being suitable for the horizontal axis wind-driven generator group.
Claims (6)
1. wind-driven generator group wind-wheel locking mechanism, comprise that frame and wind wheel turn, it is characterized in that: be fixedly connected with external splines (2) on described wind wheel is turned, be equipped with internal spline (3) by push-pull mechanism (4) activity on the described frame, this internal spline (3) is corresponding with external splines (2) on wind wheel is turned, coupling, under the promotion or pulling function of push-pull mechanism (4), internal spline (3) is realized axial overhanging or back in frame, overhanging internal spline (3) is as meshing with external splines (2), and the internal spline that backs (3) is as separating with external splines (2).
2. according to the described wind-driven generator group wind-wheel locking mechanism of claim 1, it is characterized in that: the periphery of described internal spline (3) is provided with restraining groove/tooth; Position limit pin/tooth corresponding with restraining groove/tooth on the internal spline (3), coupling is fixedly arranged on the frame of described external splines (2) periphery correspondence; Described position limit pin/tooth is used as when internal spline (3) meshes with external splines (2) internal spline (3) is fixed.
3. according to the described wind-driven generator group wind-wheel locking mechanism of claim 1, it is characterized in that: the engaging tooth on described external splines (2) and the internal spline (3) is respectively double circular arc tooth.
4. according to the described wind-driven generator group wind-wheel locking mechanism of claim 1, it is characterized in that: described external splines (2) is fixedly connected on main shaft (7) and connects on the flange circumference of wind wheel (1).
5. according to the described wind-driven generator group wind-wheel locking mechanism of claim 1, it is characterized in that: described push-pull mechanism (4) is electronic push-pull mechanism or hydraulic pressure push-pull mechanism.
6. according to the described wind-driven generator group wind-wheel locking mechanism of claim 1, it is characterized in that: described push-pull mechanism (4) is assemblied on the spindle bearing holder (5) of frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310154948.8A CN103233866B (en) | 2013-04-28 | 2013-04-28 | Wind-driven generator group wind-wheel locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310154948.8A CN103233866B (en) | 2013-04-28 | 2013-04-28 | Wind-driven generator group wind-wheel locking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103233866A true CN103233866A (en) | 2013-08-07 |
| CN103233866B CN103233866B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310154948.8A Active CN103233866B (en) | 2013-04-28 | 2013-04-28 | Wind-driven generator group wind-wheel locking mechanism |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007278122A (en) * | 2006-04-04 | 2007-10-25 | Fuji Heavy Ind Ltd | Horizontal shaft windmill |
| EP2226502A1 (en) * | 2009-03-03 | 2010-09-08 | Siemens Aktiengesellschaft | Method and arrangement to install a wind-turbine |
| CN202300866U (en) * | 2011-09-09 | 2012-07-04 | 广东明阳风电产业集团有限公司 | Wind wheel locking device for wind driven generator set |
| CN202587675U (en) * | 2012-05-09 | 2012-12-05 | 江苏辉能达电气有限公司 | Dynamic positioning and interlocking device |
-
2013
- 2013-04-28 CN CN201310154948.8A patent/CN103233866B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007278122A (en) * | 2006-04-04 | 2007-10-25 | Fuji Heavy Ind Ltd | Horizontal shaft windmill |
| EP2226502A1 (en) * | 2009-03-03 | 2010-09-08 | Siemens Aktiengesellschaft | Method and arrangement to install a wind-turbine |
| CN202300866U (en) * | 2011-09-09 | 2012-07-04 | 广东明阳风电产业集团有限公司 | Wind wheel locking device for wind driven generator set |
| CN202587675U (en) * | 2012-05-09 | 2012-12-05 | 江苏辉能达电气有限公司 | Dynamic positioning and interlocking device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103233866B (en) | 2016-01-20 |
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Effective date of registration: 20160420 Address after: 618000 Sichuan Province, Deyang city Huashan road two No. 2 Patentee after: DONGFANG ELECTRIC WIND POWER CO., LTD. Address before: 618000 Jiangxi hi tech Industrial Park, Sichuan, Jinsha Road, No. 666, No. Patentee before: Dongfang Turbine Co., Ltd., Dongfang Electric Group |
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Address after: 618000 2 Huashan South Road, Deyang, Sichuan, 2 Patentee after: Dongfang Electric Wind Power Co.,Ltd. Address before: 618000 2 Huashan South Road, Deyang, Sichuan, 2 Patentee before: DONGFANG ELECTRIC WIND POWER Co.,Ltd. |