CN202170848U - Rear frame of wind power generation unit - Google Patents
Rear frame of wind power generation unit Download PDFInfo
- Publication number
- CN202170848U CN202170848U CN2011201734964U CN201120173496U CN202170848U CN 202170848 U CN202170848 U CN 202170848U CN 2011201734964 U CN2011201734964 U CN 2011201734964U CN 201120173496 U CN201120173496 U CN 201120173496U CN 202170848 U CN202170848 U CN 202170848U
- Authority
- CN
- China
- Prior art keywords
- girders
- girder
- rear bay
- wind power
- crossbeams
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
A rear frame of wind power generation unit was characterized in that it uses cantilever type structure; two girders are vertical variable cross section structural girders; the cross section of the girder is smaller when it is closer to the tail end of the rear frame; two girders are connected with a front frame in cantilever manner via a fastening piece; two beams are arranged in the middle of two girders; an end girder is arranged on the tail ends of two girders; two girders, two beams and the end girder are connected via welding to form the rear frame with frame structure. The utility model satisfies the installation of the generator and the electric cabinet etc. components, provides the passage for the worker to maintain the device, satisfies requirements of manufacturing technology, considers the manufacturing cost, and satisfies the requirements of load intensity of the fan in various operation states.
Description
Technical field
The utility model relates to a kind of modular construction of wind power generating set, is a kind of wind power generating set rear bay form structure specifically, is mainly used in high-power horizontal axis wind-driven generator group.
Background technique
In recent years along with the rapid growth of China's economy; The contradiction of whole nation power supply shortage is more and more outstanding; Therefore as except that water power, the most ripe, on the largest scale and have the wind-power electricity generation of commercialized development prospect also to obtain the development of high speed in recent years most in the renewable energy sources development and use.Wind-power electricity generation mainly comprises parts such as wind wheel, cabin and tower tube, and its mid frame is mounted in the cabin.
The effect of frame is exactly that the wheel load of keeping watch is transferred on the driftage bearing, and provides support for gear-box and generator.In wind-driven generator, frame links to each other with gear-box, and they are independently unit in principle, so in the ordinary course of things, frame is as independent entity.Concerning the megawatt-grade high-power generator set, frame generally is divided into anterior frame and rear bay.Rear bay is that generator, electric cabinet etc. provide support, and to the maintenance of equipment passage is provided for personnel.
And be accompanied by the development of domestic wind-powered electricity generation industry in recent years, the manufacture cost and the safety and stability performance of blower fan there has been further requirement.The subject matter that rear bay need be considered during rear bay in design, the first, structural type satisfies the installation of parts such as generator, electric cabinet, and to the maintenance of equipment passage is provided for personnel; The second, satisfy the anufacturability requirement, and manufacture cost is considered; The 3rd, satisfy the requirement of blower fan density of load under various operating conditionss.And existing rear bay is not considered the comprehensive inadequately of the problems referred to above or consideration.
For comprehensively addressing the above problem, it is necessary designing a new rear bay.
The model utility content
The purpose of the utility model is the deficiency to existing wind power generating set rear bay; A kind of installation requirement that can satisfy parts such as generator, electric cabinet is provided; And for personnel provide passage to the maintenance of equipment, and the rear bay that structure is good, intensity meets the demands, technology is simple and with low cost.
The technology implementation scheme that purpose proposed according to model utility is: a kind of wind power generating set rear bay, adopt cantilevered structural type, and two girders of rear bay are the longitudinal variable cross-section structural beams, and the sectional area of the terminal girder of more past rear bay is more little; Two girders are connected together through fastening piece and anterior frame cantilever type; Be provided with two crossbeams in the centre of two girders; End at two girders also is provided with end carriage, and two girders and two crossbeams and end carriage become the rear bay of a frame structure all through being welded together; The direction parallel with girder is welded with an auxiliary girder between two crossbeams, in the horizontal surface areas of two crossbeams and auxiliary girder and girder on one side, is furnished with two generator mounting rails, and the generator mounting rail is welded on respectively on auxiliary girder and the girder on one side.
The concrete advantage of the utility model shows as structural type compactness, simple; Self assembling is simple, and good platform is provided for the installation of other parts; Anufacturability is good; Intensity can satisfy the requirement of various operating modes; Manufacture cost is lower.
Description of drawings
Fig. 1 is the structural representation of the utility model rear bay;
Fig. 2 is the structural representation plan view of the utility model rear bay;
Fig. 3 is the position view of rear bay in the cabin;
Fig. 4 is the position diagrammatic top view of rear bay in the cabin.
Embodiment
To combine accompanying drawing and practical implementation that the utility model is done further description below.
Fig. 1 and Fig. 2 have provided an enforcement structural representation of the utility model; From accompanying drawing, can find out; The utility model is a kind of wind power generating set rear bay 10; Rear bay 10 adopts cantilevered structural type, and two girders 1 of rear bay 10 are the longitudinal variable cross-section structural beams with 2, and the sectional area of two girders 1 and 2 more past rear bays end girders is more little; Two girders 1 and 2 are connected together through fastening piece and anterior frame 11 cantilever types; Be provided with two crossbeams 3 and 4 in the centre of two girders 1 and 2; End in two girders 1 and 2 also be provided with 5, two girders 1 of end carriage and 2 and two crossbeams 3 and 4 with end carriage 5 all through being welded together, become the rear bay 10 of a frame structure; The direction parallel with girder is welded with an auxiliary girder 7 between two crossbeams 3 and 4; Two crossbeams 3 and 4 with the horizontal surface areas of auxiliary girder 7 and girder 1 on one side or 2 in, be furnished with two generator mounting rails 8 and 9, generator mounting rail 8 and 9 is welded on respectively on the girder 1 or 2 on auxiliary girder 7 and one side.
From accompanying drawing 3 and 4, can find out mounting point and the effect of rear bay in wind generating set engine room of the utility model.
The front portion of rear bay 10 is provided with a plate 6, and the connecting plate 6 general fastening pieces of crossing are connected with anterior frame 11.Generator 12 is installed on the two generator mounting rails 8 and 9 in the rear bays 10; Electric cabinet 13 is installed in rear bay 10 rear portions one side through support; Passageway platform 14 is installed in the opposite side at rear bay 10 rear portions; Gear case oil cold heat sink 15 is installed in the below of passageway, rear bay 10 rear portion platform 14.Bottom in the both sides of 10 two girders 1 of rear bay and 2 is fixed with two supporting plates 17 respectively, and four supporting plates 17 of rear bay 10 bottom sides and 18 are installed together with truss 16 respectively.The fixed position of rear bay 10 whole cantilevers is two waist shapes of front end flange, and plane and lower plane have the angle of 4.5 degree on the frame, and afterbody leaves gear case oil cold heat sink mountion plate.
Rear bay 10 is welded through the Q345E steel plate of various thicknesss of slab.All weld seams are carried out 100% visual examination with reference to ISO5817-C.Want before the welding earlier thickness is preheating to 100-150 ℃ greater than the plate of 30mm, other plates are preheating to 60-80 ℃; All weld seams of postwelding cleaning, foreign material such as scale.Butt welded seam carries out magnetic particle flaw detection and ultrasonic flaw detection.The rear bay 10 that butt welding fills the foot requirement carries out the artificial aging processing.
For the rear bay of guaranteeing to design 10 can satisfy requirement of strength, use limited software and tired software that its stressed and fatigue damage value are carried out analytical calculation.Look into the yield limit intensity that GB/T 1591 obtains using sheet material, the stress result value that rear bay 10 calculates under limited conditions shows that all less than the yield limit value of material ultimate strength meets the demands.Use tired software to combine the SN curve calculation of fatigue load spectrum and material to obtain the impairment value of position while welding, damage shows that all less than 0.5 the fatigue strength of rear bay meets the demands.
Claims (3)
1. wind power generating set rear bay, it is characterized in that: adopt cantilevered structural type, two girders of rear bay are the longitudinal variable cross-section structural beams, and the sectional area of the terminal girder of more past rear bay is more little; Two girders are connected together through fastening piece and anterior frame cantilever type; Be provided with two crossbeams in the centre of two girders; End at two girders also is provided with end carriage, and two girders and two crossbeams and end carriage become the rear bay of a frame structure all through being welded together.
2. wind power generating set rear bay according to claim 1; It is characterized in that: the direction parallel with girder is welded with an auxiliary girder between two crossbeams; In the horizontal surface areas of two crossbeams and auxiliary girder and girder on one side; Be furnished with two generator mounting rails, the generator mounting rail is welded on respectively on auxiliary girder and the girder on one side.
3. wind power generating set rear bay according to claim 2 is characterized in that: the bottom in the both sides of two girders of rear bay is fixed with two supporting plates respectively, and four supporting plates of rear bay bottom sides are installed together with truss respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201734964U CN202170848U (en) | 2011-05-27 | 2011-05-27 | Rear frame of wind power generation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201734964U CN202170848U (en) | 2011-05-27 | 2011-05-27 | Rear frame of wind power generation unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202170848U true CN202170848U (en) | 2012-03-21 |
Family
ID=45829043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201734964U Expired - Fee Related CN202170848U (en) | 2011-05-27 | 2011-05-27 | Rear frame of wind power generation unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202170848U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077983A (en) * | 2016-06-29 | 2016-11-09 | 安徽涌诚机械有限公司 | High precision large-sized welding machine frame process |
| CN108268675A (en) * | 2016-12-30 | 2018-07-10 | 北京金风科创风电设备有限公司 | Fatigue damage determination method and fatigue damage determination device |
-
2011
- 2011-05-27 CN CN2011201734964U patent/CN202170848U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077983A (en) * | 2016-06-29 | 2016-11-09 | 安徽涌诚机械有限公司 | High precision large-sized welding machine frame process |
| CN106077983B (en) * | 2016-06-29 | 2019-08-02 | 安徽涌诚机械有限公司 | High precision large-sized welding machine frame process |
| CN108268675A (en) * | 2016-12-30 | 2018-07-10 | 北京金风科创风电设备有限公司 | Fatigue damage determination method and fatigue damage determination device |
| CN108268675B (en) * | 2016-12-30 | 2021-09-07 | 北京金风科创风电设备有限公司 | Fatigue damage determination method and fatigue damage determination device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20190527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |