CN104344948A - Megawatt level large-scale fan blade test steel framework fixed supporting platform - Google Patents
Megawatt level large-scale fan blade test steel framework fixed supporting platform Download PDFInfo
- Publication number
- CN104344948A CN104344948A CN201310343860.0A CN201310343860A CN104344948A CN 104344948 A CN104344948 A CN 104344948A CN 201310343860 A CN201310343860 A CN 201310343860A CN 104344948 A CN104344948 A CN 104344948A
- Authority
- CN
- China
- Prior art keywords
- wall
- clamped
- blade
- fixedly connected
- oblique cylinder
- 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.)
- Pending
Links
Landscapes
- Wind Motors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the technical field of fan blade certification test, and particularly relates to a megawatt level large-scale fan blade test steel framework fixed supporting platform. The invention aims at achieving the goals that the maximum bearing bending moment of the fixed supporting platform static force test is not smaller than 35MNm, the test time requires the completion within 3 months, the cost is controlled in a range within 2 million Yuan, and the problem that the megawatt level large-scale wind power generator rotor blade fixed supporter restraint load requirement cannot be met in the prior art is solved. The fixed supporting platform comprises a bearing wall body (6), a blade fixed supporting inclined tube (3), a wall body forwards inclined support beam (2), a wall body backwards inclined support beam (8), a wall body support bottom plate (11) and a bearing floor rail (12). The fixed supporting platform consisting of the bearing wall body, the blade fixed supporting inclined tube, the wall body forwards inclined support beam, the wall body backwards inclined support beam, the wall body support bottom plate and the bearing ground rail, in the fixed supporting platform static force test, the maximum bearing bending moment exceeds 35MNm, in the fatigue test, the maximum bearing bending moment exceeds 20MNm, the pitching flexibility of the fixed supporting platform is smaller than 1 degree, and the test requirement is met.
Description
Technical field
The invention belongs to fan blade certification test technical field, be specifically related to the clamped platform of a kind of MW class large fan leaf assay steel frame.
Background technology
In recent years, along with the cry of energy crisis and environmental pollution grows to even greater heights, various countries to the demand of new forms of energy and the improvement of environmental pollution also more and more urgent.Wind energy is day by day subject to various countries as a kind of clean regenerative resource and payes attention to.MW class large-scale wind driven generator has been arranged on wind energy turbine set all over the world more and more.
MW class large-scale wind driven generator spinner blade is the most important parts of blower fan.The intensity of fan blade, rigidity property determine the performance of genset.According to IEC61400 associated international standards: all new research and development blades could be criticized product after having to pass through strict third-party testing test and certification and put on market.In the test of MW class large fan blade testing, the primary key issue solved be there is enough rigidity, the fan blade test of intensity uses clamped platform.Requiring that clamped platform static(al) tests maximum carrying moment of flexure is 35MNm, and the maximum carrying moment of flexure of testing fatigue is 20MNm, and the pitching amount of deflection of clamped platform is less than 1 °.
At present, often adopt large-scale pre-buried pile foundation reinforced concrete to build test platform both at home and abroad and the clamped constraint of cantilever is carried out to blade.The advantage of such platform is that intensity, rigidity are stable and easy for installation; Its shortcoming is construction period long (usually needing the time of half a year more than), cost of investment high (usual cost is not less than 4,000,000 yuan), flexible applicability and expandability poor.
Clamped platform static(al) test maximum carrying moment of flexure be not less than 35MNm, the test duration require completed in 3 months, cost control within the scope of 2,000,000 yuan, existing clamped platform cannot meet the loading demands of the clamped constraint of MW class large-scale wind driven generator spinner blade.
Summary of the invention
The object of the invention is to test that maximum carrying moment of flexure is not less than 35MNm at clamped platform static(al), the test duration requires to complete in 3 months, cost control is within the scope of 2,000,000 yuan, solve the problem that prior art cannot meet the loading demands of the clamped constraint of MW class large-scale wind driven generator spinner blade, provide a kind of MW class large fan leaf assay steel frame clamped platform.
The present invention is achieved in that
The clamped platform of a kind of MW class large fan leaf assay steel frame, comprises raker beam, wall support base plate and carrying track after raker beam before bearing wall, the clamped oblique cylinder of blade, body of wall, body of wall; Wherein, the top of bearing wall is rectangular-shaped, and bottom is xsect is trapezoidal terrace with edge hexahedron; The clamped oblique cylinder of blade is cylindric, and arrange reinforcement in the clamped oblique cylinder sidewall of blade, the clamped one end of oblique cylinder of blade is fixedly connected with the front end of bearing wall, and the other end of the clamped oblique cylinder of blade is fixedly connected with root of blade; Before body of wall, one end of raker beam is fixedly connected with the front end of bearing wall, and the other end is fixedly connected with carrying track; After body of wall, one end of raker beam is fixedly connected with the rear end of bearing wall, and the other end is fixedly connected with carrying track; Wall support base plate is metal tabular, and the top of wall support base plate is fixedly connected with the bottom of bearing wall, and the bottom of wall support base plate is fixedly mounted in carrying track.
The thickness on bearing wall top as above is 1m, and the material that bearing wall is greater than 280Mpa by intensity is made.
Bearing wall as above is made up of cast steel.
The reinforcement of some connection upper and lower end faces is circumferentially evenly arranged in the clamped oblique cylinder sidewall of blade as above, the proportionate relationship of the thickness of the clamped oblique cylinder sidewall of blade, upper and lower end face thickness and Rib Thickness is 2:4:1, and between the clamped oblique cylinder one end end face of blade and other end end face, the angular range of angle is 9 ° ~ 14 °.
The cross section of one end of the clamped oblique cylinder of blade as above is oval, and the cross section of the other end of the clamped oblique cylinder of blade is circular; The quantity of reinforcement is 40; The external diameter of the clamped oblique cylinder of blade is 2.3m, and wall thickness is for being greater than 40mm; The shortest length of the clamped oblique cylinder axis of blade is 300mm ~ 500mm.
Before body of wall as above, raker beam is 2 ~ 4, and after body of wall, raker beam is 5 ~ 7.
The material that wall support base plate employing as above is greater than 280Mpa by intensity is made.
Carrying track as above is made up of 4 ~ 8 pairs of tracks usually, and the distance between often pair of track center line is equal; The length of track is 10m ~ 15m; Often pair of track is made up of two " I shape " steel.
Two " I shapes " in often pair of track as above are vertically placed side by side, and between two " I shape " steel geometric centers, spacing is 100mm ~ 120mm; They are embedded in below ground, and the top of " I shape " steel of two vertical placements side by side flushes with ground.
It also comprises body of wall front end-plate, body of wall end plate, brace and girder steel; Wherein, body of wall front end-plate and body of wall end plate are tabular, and one end of body of wall front end-plate is fixedly connected with the front end of bearing wall, and the other end respectively oblique cylinder cross section clamped with blade is that one end of ellipse and one end of front diagonal brace girder steel are connected; One end of body of wall end plate is fixedly connected with the rear end of bearing wall, and the other end is fixedly connected with one end of brace with rear one end of diagonal brace girder steel respectively; Body of wall front end-plate and body of wall end plate have slot; The other end of brace is fixedly connected with the top of girder steel; The bottom of girder steel is fixedly connected with carrying track.
The invention has the beneficial effects as follows:
The present invention's clamped platform that after raker beam 2, body of wall, raker beam 8, wall support base plate 11 and carrying track 12 form before adopting bearing wall 6, the clamped oblique cylinder 3 of blade, body of wall, clamped platform static(al) tests maximum carrying moment of flexure more than 35MNm, the maximum carrying moment of flexure of testing fatigue is more than 20MNm, the pitching amount of deflection of clamped platform is less than 1 °, meets the load of the clamped constraint of MW class large-scale wind driven generator spinner blade.This clamped platform construction cycle is short, generally, within one month, can build; This clamped platform building cost is low, and general cost is no more than 2,000,000 yuan, has greatly saved test input cost, highly shortened the test preparatory period.In addition, adopt and combine the recycling rate of waterused that the mode of building enhances the adaptability of test platform, expandability and each parts.
Accompanying drawing explanation
Fig. 1 is the structural representation of the clamped platform of a kind of MW class large fan leaf assay steel frame of the present invention;
In figure: 1. fan blade, diagonal brace girder steel 2., the 3. clamped oblique cylinder of blade, the 4. little diagonal brace of steel, 5. body of wall front end-plate, 6. bearing wall, 7. body of wall end plate, diagonal brace girder steel, 9. brace, 10. girder steel 8., 11. wall support bases, 12. carrying tracks.
Embodiment
Below in conjunction with the drawings and specific embodiments, the clamped platform of a kind of MW class large fan leaf assay steel frame of the present invention is specifically introduced:
The clamped platform of a kind of MW class large fan leaf assay steel frame, comprises raker beam 8, wall support base plate 11, carrying track 12 after raker beam 2 before bearing wall 6, the clamped oblique cylinder 3 of blade, body of wall, body of wall.Wherein, the top of bearing wall 6 is rectangular-shaped, and bottom is xsect is trapezoidal terrace with edge hexahedron; In the present embodiment, the thickness on bearing wall 6 top is 1m, and the material that bearing wall is generally greater than 280Mpa by intensity is made, and is generally made up of cast steel.
The clamped oblique cylinder 3 of blade is cylindric, the reinforcement of some connection upper and lower end faces is circumferentially evenly arranged in clamped oblique cylinder 3 sidewall of blade, the proportionate relationship of the thickness of clamped oblique cylinder 3 sidewall of blade, upper and lower end face thickness and Rib Thickness is 2:4:1, one end of the clamped oblique cylinder 3 of blade is fixedly connected with the front end of bearing wall 6, and the other end of the clamped oblique cylinder 3 of blade is fixedly connected with fan blade 1 root; In the present embodiment, the quantity of reinforcement is 40; The cross section of one end of the clamped oblique cylinder 3 of blade is oval, and the cross section of the other end of the clamped oblique cylinder 3 of blade is circular, and between the clamped oblique cylinder 3 one end end face of blade and other end end face, the angular range of angle is 9 ° ~ 14 °, as got 9 °, 11 ° or 14 °; The other end of the clamped oblique cylinder 3 of blade is fixedly connected with employing and is threaded and realizes it with root of blade; The external diameter of the clamped oblique cylinder 3 of blade is 2.3m, and wall thickness, for being greater than 40mm, is generally 50mm, 55mm or 60mm; Reinforcement adopts universal design.The shortest length of clamped oblique cylinder 3 axis of blade is 300mm ~ 500mm, as 300mm, 400mm or 500mm.Before body of wall, one end of raker beam 2 is fixedly connected with the front end of bearing wall 6, and the other end is fixedly connected with carrying track 12.After body of wall, one end of raker beam 8 is fixedly connected with the rear end of bearing wall 6, and the other end is fixedly connected with carrying track 12.Before body of wall, after raker beam 2 and body of wall, raker beam 8 all adopts universal fixture girder steel to realize, and their quantity is determined according to actual conditions, generally, before body of wall, raker beam 2 is 2 ~ 4, as 2,3 or 4, after body of wall, raker beam 8 is 5 ~ 7, as 5,6 or 7.Wall support base plate 11 is metal tabular, and its top is fixedly connected with the bottom of bearing wall 6, and its bottom is fixedly mounted in carrying track 12, and wall support base plate 11 material that generally employing is greater than 280Mpa by intensity is made, and is usually made up of cast steel.Carrying track 12 is made up of 4 ~ 8 pairs of tracks usually, and as 4,6 or 8 right, the distance between often pair of track center line is equal, is generally 1m.Often pair of track is made up of two " I shape " steel, they are vertically placed side by side, between two " I shape " steel geometric centers, spacing is generally 100mm ~ 120mm, as 100mm, 110mm or 120mm, they are embedded in below ground, and the top of " I shape " steel of two vertical placements side by side flushes with ground.The length of track is 10m ~ 15m, as 10m, 13m or 15m.
In a preferred embodiment, the clamped platform of MW class large fan leaf assay steel frame of the present invention also comprises body of wall front end-plate 5, body of wall end plate 7, brace 9 and girder steel.Wherein, body of wall front end-plate 5 and body of wall end plate 7 are tabular, thickness is 100mm, and one end of body of wall front end-plate 5 is fixedly connected with the front end of bearing wall 6, and the other end respectively oblique cylinder 3 cross section clamped with blade is that one end of ellipse and one end of front diagonal brace girder steel 2 are connected.One end of body of wall end plate 7 is fixedly connected with the rear end of bearing wall 6, and the other end is fixedly connected with one end of brace 9 with one end of rear diagonal brace girder steel 8 respectively.Body of wall front end-plate 5 and body of wall end plate 7 have slot, passes in and out for personnel.In the present embodiment, body of wall front end-plate 5 is fixedly connected with rear diagonal brace girder steel 8 with bearing wall 6, front diagonal brace girder steel 2 by high-strength bolt respectively with body of wall end plate 7.The other end of brace 9 is fixedly connected with the top of girder steel.The bottom of girder steel 10 is fixedly connected with carrying track 12, and in the present embodiment, girder steel 10 adopts general cast steel to make.
When carrying out MW class blade testing, cross section MW class root of blade being fixed on the clamped oblique cylinder 3 of blade is one end of positive round, relevant test event can be carried out, clamped platform static(al) tests maximum carrying moment of flexure more than 35MNm, the maximum carrying moment of flexure of testing fatigue is more than 20MNm, the pitching amount of deflection of clamped platform is less than 1 °, meets the load of the clamped constraint of MW class large-scale wind driven generator spinner blade.
The present invention's clamped platform that after raker beam 2, body of wall, raker beam 8, wall support base plate 11 and carrying track 12 form before adopting bearing wall 6, the clamped oblique cylinder 3 of blade, body of wall, clamped platform static(al) tests maximum carrying moment of flexure more than 35MNm, the maximum carrying moment of flexure of testing fatigue is more than 20MNm, the pitching amount of deflection of clamped platform is less than 1 °, meets the load of the clamped constraint of MW class large-scale wind driven generator spinner blade.This clamped platform construction cycle is short, generally, within one month, can build; This clamped platform building cost is low, and general cost is no more than 2,000,000 yuan, has greatly saved test input cost, highly shortened the test preparatory period.In addition, adopt and combine the recycling rate of waterused that the mode of building enhances the adaptability of test platform, expandability and each parts.
Claims (10)
1. the clamped platform of MW class large fan leaf assay steel frame, comprises raker beam (8) after raker beam (2) before bearing wall (6), the clamped oblique cylinder (3) of blade, body of wall, body of wall, wall support base plate (11) and carrying track (12); Wherein, the top of bearing wall (6) is rectangular-shaped, and bottom is xsect is trapezoidal terrace with edge hexahedron; The clamped oblique cylinder (3) of blade is cylindric, reinforcement is arranged in blade clamped oblique cylinder (3) sidewall, one end of the clamped oblique cylinder (3) of blade is fixedly connected with the front end of bearing wall (6), and the other end of the clamped oblique cylinder (3) of blade is fixedly connected with fan blade (1) root; Before body of wall, one end of raker beam (2) is fixedly connected with the front end of bearing wall (6), and the other end is fixedly connected with carrying track (12); After body of wall, one end of raker beam (8) is fixedly connected with the rear end of bearing wall (6), and the other end is fixedly connected with carrying track (12); Wall support base plate (11) is metal tabular, and the top of wall support base plate (11) is fixedly connected with the bottom of bearing wall (6), and the bottom of wall support base plate (11) is fixedly mounted in carrying track (12).
2. the clamped platform of a kind of MW class large fan leaf assay steel frame according to claim 1, is characterized in that: the thickness on described bearing wall (6) top is 1m, and the material that bearing wall (6) is greater than 280Mpa by intensity is made.
3. the clamped platform of a kind of MW class large fan leaf assay steel frame according to claim 2, is characterized in that: described bearing wall (6) is made up of cast steel.
4. the clamped platform of a kind of MW class large fan leaf assay steel frame according to claim 1, it is characterized in that: the reinforcement being circumferentially evenly arranged some connection upper and lower end faces in described blade clamped oblique cylinder (3) sidewall, the proportionate relationship of the thickness of blade clamped oblique cylinder (3) sidewall, upper and lower end face thickness and Rib Thickness is 2:4:1, and between blade clamped oblique cylinder (3) one end end face and other end end face, the angular range of angle is 9 ° ~ 14 °.
5. the clamped platform of a kind of MW class large fan leaf assay steel frame according to claim 4, is characterized in that: the cross section of one end of the clamped oblique cylinder (3) of described blade is for oval, and the cross section of the other end of the clamped oblique cylinder (3) of blade is circular; The quantity of reinforcement is 40; The external diameter of the clamped oblique cylinder (3) of blade is 2.3m, and wall thickness is for being greater than 40mm; The shortest length that the clamped oblique cylinder (3) of blade is axial is 300mm ~ 500mm.
6. the clamped platform of a kind of MW class large fan leaf assay steel frame according to claim 1, it is characterized in that: before described body of wall, raker beam (2) is 2 ~ 4, after body of wall, raker beam (8) is 5 ~ 7.
7. the clamped platform of a kind of MW class large fan leaf assay steel frame according to claim 1, is characterized in that: the material that described wall support base plate (11) employing is greater than 280Mpa by intensity is made.
8. the clamped platform of a kind of MW class large fan leaf assay steel frame according to claim 1, is characterized in that: described carrying track (12) is made up of 4 ~ 8 pairs of tracks usually, and the distance between often pair of track center line is equal; The length of track is 10m ~ 15m; Often pair of track is made up of two " I shape " steel.
9. the clamped platform of a kind of MW class large fan leaf assay steel frame according to claim 7, it is characterized in that: two " I shapes " in often pair of described track are vertically placed side by side, between two " I shape " steel geometric centers, spacing is 100mm ~ 120mm; They are embedded in below ground, and the top of " I shape " steel of two vertical placements side by side flushes with ground.
10. the clamped platform of a kind of MW class large fan leaf assay steel frame according to claim 1, is characterized in that: it also comprises body of wall front end-plate (5), body of wall end plate (7), brace (9) and girder steel (10); Wherein, body of wall front end-plate (5) and body of wall end plate (7) are tabular, one end of body of wall front end-plate (5) is fixedly connected with the front end of bearing wall (6), and the other end respectively oblique cylinder (3) cross section clamped with blade is that one end of ellipse and one end of front diagonal brace girder steel (2) are connected; One end of body of wall end plate (7) is fixedly connected with the rear end of bearing wall (6), and the other end is fixedly connected with one end of brace (9) with one end of rear diagonal brace girder steel (8) respectively; Body of wall front end-plate (5) and body of wall end plate (7) have slot; The other end of brace (9) is fixedly connected with the top of girder steel; The bottom of girder steel (10) is fixedly connected with carrying track (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310343860.0A CN104344948A (en) | 2013-08-08 | 2013-08-08 | Megawatt level large-scale fan blade test steel framework fixed supporting platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310343860.0A CN104344948A (en) | 2013-08-08 | 2013-08-08 | Megawatt level large-scale fan blade test steel framework fixed supporting platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104344948A true CN104344948A (en) | 2015-02-11 |
Family
ID=52501023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310343860.0A Pending CN104344948A (en) | 2013-08-08 | 2013-08-08 | Megawatt level large-scale fan blade test steel framework fixed supporting platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104344948A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539478A (en) * | 2009-05-08 | 2009-09-23 | 中能风电设备有限公司 | Tester for testing multifunctional vane |
| CN202274981U (en) * | 2011-10-12 | 2012-06-13 | 华锐风电科技(集团)股份有限公司 | Static force loading device of high-power blade test bench |
| EP2522975A2 (en) * | 2011-03-07 | 2012-11-14 | Vestas Wind Systems A/S | A wind turbine blade tester |
-
2013
- 2013-08-08 CN CN201310343860.0A patent/CN104344948A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539478A (en) * | 2009-05-08 | 2009-09-23 | 中能风电设备有限公司 | Tester for testing multifunctional vane |
| EP2522975A2 (en) * | 2011-03-07 | 2012-11-14 | Vestas Wind Systems A/S | A wind turbine blade tester |
| CN202274981U (en) * | 2011-10-12 | 2012-06-13 | 华锐风电科技(集团)股份有限公司 | Static force loading device of high-power blade test bench |
Non-Patent Citations (1)
| Title |
|---|
| 无: "《http://www.instrument.com.cn/netshow/sh102736/news_83965.htm》", 18 October 2012 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103114604A (en) | Prestressed concrete tubular type wind generating set foundation | |
| CN203223003U (en) | Detachable triangular jig frame for steel truss assembling | |
| CN202577960U (en) | Suspension outer bearing type combination steel formwork applied in roller compacted concrete (RCC) construction | |
| CN104344948A (en) | Megawatt level large-scale fan blade test steel framework fixed supporting platform | |
| CN211691444U (en) | Wind power generator tower template | |
| CN204418654U (en) | For the aluminum alloy pattern plate between body of wall | |
| CN203213137U (en) | Steel raft foundation for installing steel structure roof | |
| CN204793910U (en) | Large -span cable testing bridge | |
| CN102191872B (en) | Tower footing and tower body structure for space truss structure with constant strength and method for forming tower | |
| CN204024188U (en) | A kind of concrete pylon external prestressing anchor Shu Pingheng screw stretching anchor device | |
| CN202430736U (en) | Jacket and wind turbine foundation of wind farm | |
| CN205212760U (en) | Biax solar energy power generation tracker | |
| CN203939040U (en) | A kind of tower foundation for wind-power electricity generation precast concrete pylon | |
| CN202064370U (en) | Splicing type multi-ribbed-plate foundation structure | |
| CN202007410U (en) | Novel tower crane base | |
| CN207795460U (en) | Muscle and anchor bolt levelling device are worn with prestressing force in a kind of concrete tower high-altitude | |
| CN201588414U (en) | Supporting structure for framework scaffolds | |
| CN204794821U (en) | Fixed solar energy ground mounting system | |
| CN201546371U (en) | Bundled non-bonded prestressed rib anchorage system for large-diameter silo | |
| CN202467221U (en) | Power plant main workshop steel roof truss hoisting lifting device | |
| CN205224588U (en) | Concrete placement formwork support device | |
| CN101259896B (en) | Assembly for transporting windmill generator vane and using method thereof | |
| CN204633685U (en) | A kind of photovoltaic panel suspension arrangement | |
| CN205530326U (en) | Tower crane landing leg anchor | |
| CN202705936U (en) | Windproof prefabricated part assembly and connection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150211 |