CN204493087U - The mounting structure of pitch variable bearings and the impeller of wind-driven generator - Google Patents
The mounting structure of pitch variable bearings and the impeller of wind-driven generator Download PDFInfo
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- CN204493087U CN204493087U CN201520169908.5U CN201520169908U CN204493087U CN 204493087 U CN204493087 U CN 204493087U CN 201520169908 U CN201520169908 U CN 201520169908U CN 204493087 U CN204493087 U CN 204493087U
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- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
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Classifications
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- Y02E10/722—
Abstract
The utility model provides a kind of mounting structure of pitch variable bearings and the impeller of wind-driven generator, and the mounting structure of pitch variable bearings comprises blade, locating stud and inner ring and is bolted to connection the pitch variable bearings on wheel hub; Blade comprises the blade flange being provided with screw, screw is equal with the number of openings on the outer ring of pitch variable bearings, and one_to_one corresponding, bolt passes the through hole on pitch variable bearings outer ring and is threaded in the screw on blade flange, and then is fixedly connected on the outer ring of pitch variable bearings by blade; The end face that pitch variable bearings outer ring is connected with blade flange arranges the first positioning pin hole, blade flange arranges the second positioning pin hole, the first positioning pin hole is corresponding with the second positioning pin hole, and locating stud interts in the first positioning pin hole and the second positioning pin hole.It has reasonable in design, structure is simple, with low cost, highly versatile, can prevent from occurring misloading or dislocation between blade and pitch variable bearings, thus reduce the advantage of the maintenance cost of pitch variable bearings.
Description
Technical field
The utility model relates to technical field of wind power generation, particularly a kind of mounting structure of pitch variable bearings and the impeller of wind-driven generator.
Background technique
The blade of pitch-controlled wind-driven generator can rotate around blade center axle.Propeller pitch angle (being generally 0 °-90 °) is regulated according to the change of wind speed and the requirement of shutdown.Under normal power generation state, when pitch-controlled wind-driven generator is in low wind speed running, the power of wind-driven generator is less than rated power, and propeller pitch angle is near 0 °; Wind speed increases to after power reaches rated power, and along with wind speed continues to increase, control system, by changing blade pitch angle, makes output power remain on rated power.In addition, under full feathering state (90 °), blade is laterally subject to the resistance of air with direction of rotation, can provide the braking force needed for shutdown.
The adjustment of blade pitch angle drives pitch variable bearings inner ring or outer ring to realize by becoming oar power mechanism.Outer ring is become to the situation of oar, the inner ring of pitch variable bearings connects wheel hub, and outer ring connects blade; Inner ring pitch variable bearings is then contrary.
Pitch variable bearings is arranged on position on wheel hub and the position of blades installation on pitch variable bearings is not arbitrary.Mainly contain two factors: the soft district of a. pitch variable bearings.The equal You Yigeruan district of bearing enclose, this is that raceway is carrying out, in surface hardening process, after preventing initial connection, occurring secondary quenching, and carry over a Ge Ruan district, in assembly process, Yao Jiangruan district is placed into non-load area.Outer ring is become to the situation of oar, generally inner ring is arranged on wheel hub and does not rotate, and soft district is placed on 45 degree of positions of forward end, and outer ring, because rotate with blade, is placed on blade windward side just to the occasionally load area of front end.B. ensure that blade pitch angle is correct.Oar is become for outer ring, when installing change oar and controlling sensor and debugging, generally using a certain position of pitch variable bearings outer ring as benchmark, as become oar zero graduation line position, when this just requires that blades installation is on bearing, the zero graduation line of blade is corresponding with the zero graduation line of bearing.
Therefore, pitch variable bearings respectively with the connection of wheel hub and blade, the through hole on pitch variable bearings inner ring and outer ring respectively with the screw one_to_one corresponding on wheel hub and blade, and corresponding position is fixed.Blades installation completes in wind energy turbine set on pitch variable bearings, and assembly condition relative mistake, easily occurs misloading, namely mounting hole not on request corresponding relation assembling.If there is misloading, so bearing zero graduation line and zero vane graduation line also just stagger an angle.Be reference by bearing zero graduation line during debugging, also just there is deviation at the propeller pitch angle in variable blade control system and blade actual blade pitch angle.In order to correction of deviation, need to take Measures of technical, even reinstall blade, expense is tens thousand of unit often.
Another problem existed when wind energy turbine set installs blade is dislocation, refers to blades installation hole and bearing mounting hole decentraction.Bias seriously can make blade bolt flange position be cut, and affects bolt strength, even causes bolt fracture, increases maintenance cost.In order to solve problem of misalignment, often adopt threaded correcting rod, during assembling generally by the threaded end of two correcting rods screw in blade bolt hole, exposed portion coordinate with bearing hole ensure concentric, again correcting rod is taken off after all the other bolts install, correcting rod position bolt is finally installed.But in practical operation, correcting rod is easy to stuck, bad taking-up, inefficiency.
Model utility content
The purpose of this utility model is to provide and a kind ofly prevents the mounting structure of the pitch variable bearings occurring misloading or dislocation between blade and pitch variable bearings and the impeller of wind-driven generator, to reduce the maintenance cost of pitch variable bearings.
For achieving the above object, the technological scheme that the utility model adopts is:
A mounting structure for pitch variable bearings, the mounting structure of described pitch variable bearings is comprised blade, locating stud and inner ring and is fixedly connected on pitch variable bearings on wheel hub by multiple bolt;
Described blade comprises the blade flange being provided with multiple screw, described screw is equal with the number of openings on the outer ring of described pitch variable bearings, and one_to_one corresponding, multiple bolt passes the described through hole on described pitch variable bearings outer ring and is threaded in the screw on described blade flange, and then is fixedly connected on by described blade on the outer ring of described pitch variable bearings;
The end face that described pitch variable bearings outer ring is connected with described blade flange is provided with the first positioning pin hole, described blade flange is provided with the second positioning pin hole, described first positioning pin hole is corresponding with described second positioning pin hole, described locating stud interts in described first positioning pin hole and described second positioning pin hole, by the outer ring relative positioning of described blade flange and described pitch variable bearings.
More preferably, described locating stud inserts one end of described second positioning pin hole is taper.
More preferably, the quantity of described locating stud is two, is respectively locating stud A and locating stud B;
The quantity of described first positioning pin hole is two, is respectively the first positioning pin hole A and the first positioning pin hole B;
The quantity of described second positioning pin hole is two, is respectively the second positioning pin hole A and the second positioning pin hole B, and described first positioning pin hole A is corresponding with described second positioning pin hole A, and described first positioning pin hole B is corresponding with described second positioning pin hole B;
Described locating stud A interts in described first positioning pin hole A and described second positioning pin hole A, and described locating stud B interts in described first positioning pin hole B and described second positioning pin hole B.
More preferably, the center of the center of described first positioning pin hole A, the center of described first positioning pin hole B and described pitch variable bearings outer ring is not on the same line.
More preferably, the center of described first positioning pin hole A and the angle between described pitch variable bearings axial connecting line and described pitch variable bearings outer ring zero graduation line equal the angle between the center of described second positioning pin hole A and described blade flange axial connecting line and described blade flange zero graduation line;
The center of described first positioning pin hole B and the angle between described pitch variable bearings axial connecting line and described pitch variable bearings outer ring zero graduation line equal the angle between the center of described second positioning pin hole B and described blade flange axial connecting line and described blade flange zero graduation line.
More preferably, described locating stud A is straight pin, and the shape of described first positioning pin hole A and described second positioning pin hole A all matches with described locating stud A;
Described locating stud B is rhombus pin, and the shape of described first positioning pin hole B and described second positioning pin hole B all matches with described locating stud B;
Line between the center of described locating stud A and the center of described locating stud B is vertical with the long-diagonal of the rhombus in the cross section of described locating stud B.
A mounting structure for pitch variable bearings, the mounting structure of described pitch variable bearings comprises blade, locating stud and outer ring and is bolted to connection the pitch variable bearings on wheel hub;
Described blade comprises the blade flange being provided with screw, described screw is equal with the number of openings on described pitch variable bearings inner ring, and one_to_one corresponding, bolt passes the described through hole on described pitch variable bearings outer ring and is threaded in the screw on described blade flange, and then is fixedly connected on by described blade on the inner ring of described pitch variable bearings;
The end face that described pitch variable bearings inner ring is connected with described blade flange is provided with the first positioning pin hole, described blade flange is provided with the second positioning pin hole, described first positioning pin hole is corresponding with described second positioning pin hole, described locating stud interts in described first positioning pin hole and described second positioning pin hole, by the inner ring relative positioning of described blade flange and described pitch variable bearings.
An impeller for wind-driven generator, described impeller comprises the mounting structure of the pitch variable bearings of above any technical characteristics.
The end face be connected with described blade flange by adopting described pitch variable bearings outer ring is provided with the first positioning pin hole, described blade flange is provided with the second positioning pin hole, described first positioning pin hole is corresponding with described second positioning pin hole, described locating stud interts in described first positioning pin hole and described second positioning pin hole, by the outer ring relative positioning of described blade flange and described pitch variable bearings, the utility model is had: reasonable in design, structure is simple, with low cost, can prevent from occurring misloading or dislocation between blade and pitch variable bearings, thus reduce the advantage of the maintenance cost of pitch variable bearings.
Accompanying drawing explanation
Fig. 1 be in the mounting structure of pitch variable bearings of the present utility model pitch variable bearings with blade and wheel hub connection diagram;
Fig. 2 is locating stud scheme of installation in the embodiment one of the mounting structure of pitch variable bearings of the present utility model;
Fig. 3 is the end view that in Fig. 2, pitch variable bearings connects blade flange;
Fig. 4 is the end view of Fig. 2 Leaf Flange joint pitch variable bearings;
Fig. 5 is the non-load area schematic of pitch variable bearings in Fig. 2;
Wherein: 1-blade; 2-locating stud; 3-pitch variable bearings; 4-wheel hub; 5-inner ring; 6-blade flange; 7-screw; 8-outer ring; 9-first positioning pin hole; 10-second positioning pin hole; 11-first positioning pin hole A; 12-first positioning pin hole B; 13-second positioning pin hole A; 14-second positioning pin hole B; The outer ring zero graduation line of 15-pitch variable bearings; 16-blade flange zero graduation line; Soft ribbons district, 17-outer ring; 18-inner ring soft ribbons district; 19-is non-meets region; F-wind direction.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the mounting structure of pitch variable bearings of the present utility model and the impeller of wind-driven generator are further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment one
As depicted in figs. 1 and 2, a kind of mounting structure of pitch variable bearings, is comprised blade 1, locating stud 2 and inner ring 5 and is fixedly connected on pitch variable bearings 3 on wheel hub 4 by multiple bolt; Blade 1 comprises the blade flange 6 being provided with multiple screw 7, screw 7 is equal with the number of openings on the outer ring 8 of pitch variable bearings 3, and one_to_one corresponding, multiple bolt passes the through hole on the outer ring 8 of pitch variable bearings 3 and is threaded in the screw 7 on blade flange 6, and then is fixedly connected on the outer ring 8 of pitch variable bearings 3 by blade 1.
The end face that the outer ring 8 of pitch variable bearings 3 is connected with blade flange 6 is provided with the first positioning pin hole 9, blade flange 6 is provided with the second positioning pin hole 10, first positioning pin hole 9 and the second positioning pin hole 10 corresponding, locating stud 2 interts in the first positioning pin hole 9 and the second positioning pin hole 10, by outer ring 8 relative positioning of blade flange 6 with pitch variable bearings 3.
By the positioning action of the outer ring 8 of locating stud 2 pairs of blade flanges 6 and pitch variable bearings 3, blade 1 can be made to be installed to exactly on the outer ring 8 of pitch variable bearings 3 by blade flange 6, to avoid occurring with the screw on blade flange 6, the through hole on outer ring 8 occurs that corresponding mistake or the corresponding inaccurate phenomenon misplaced that formed occur.
More preferably, locating stud 2 inserts one end of the second positioning pin hole 10 is taper.When mounted, can first locating stud 2 be arranged in the first positioning pin hole 9, and then blade 1 is installed on the outer ring 8 of pitch variable bearings 3, after blade flange 6 and the outer ring 8 of pitch variable bearings 3 align, the tapered end of locating stud 2 can insert in the second positioning pin hole 10 on blade flange 6 easily, provides conveniently to installment work.
As a kind of embodiment, the quantity of locating stud 2 is two, is respectively locating stud A (scheming not shown) and locating stud B (scheming not shown).As shown in Figure 3, the quantity of the first positioning pin hole 9 is two, is respectively the first positioning pin hole A11 and the first positioning pin hole B12, the first positioning pin hole A11 and the asymmetric setting of the first positioning pin hole B12.As shown in Figure 4, the quantity of the second positioning pin hole 10 is two, be respectively the second positioning pin hole A13 and the second positioning pin hole B14, first positioning pin hole A11 is corresponding with the second positioning pin hole A13, first positioning pin hole B12 is corresponding with the second positioning pin hole B14, locating stud A interts in the first positioning pin hole A11 and the second positioning pin hole A13, and locating stud B interts in the first positioning pin hole B12 and the second positioning pin hole B14.
The quantity of locating stud 2 is two and the through hole on outer ring 8 and the screw on blade flange 6 can not only be avoided to occur the misloading problem that corresponding mistake produces, the through hole on outer ring 8 can be made simultaneously corresponding with the screw on blade flange 6 more accurate, more effectively prevent the appearance of inconsistent phenomenon.
More preferably, the center of the center of the first positioning pin hole A11, the center of the first positioning pin hole B12 and the outer ring 8 of pitch variable bearings 3 is not on the same line.Can avoid like this occurring that outer ring 8 and blade flange 6 are misplaced the phenomenon appearance of 180 °.
More preferably, locating stud A is straight pin, and the shape of the first positioning pin hole A11 and the second positioning pin hole A13 all matches with locating stud A; Locating stud B is rhombus pin, and the shape of the first positioning pin hole B12 and the second positioning pin hole B14 all matches with locating stud B; The center of locating stud A13 is vertical with the long-diagonal of the rhombus in the cross section of locating stud B with the line between locating stud B center.
Locating stud A adopts straight pin can limit the freedom of movement in other directions between outer ring 8 and blade flange 6 except rotating around the axis of locating stud A, if locating stud B is also straight pin, the degrees of freedom of the center of locating stud A and the center line connecting direction of locating stud B will be limited, coordinating specifically between locating stud A with the second positioning pin hole A13 is transition fit, because the centre distance of the second positioning pin hole A13 and the second positioning pin hole B exists machining error, may occur when locating stud A and the second positioning pin hole A13 is completely to timing, locating stud B may not with the second positioning pin hole B14, the i.e. positioning phenomenon excessively of locating stud A, locating stud B is caused not install.
Adopting locating stud A to be straight pin and locating stud B is rhombus pin, locating stud B can and the second positioning pin hole B between there is gap, but locating stud B and locating stud A can't be affected jointly to outer ring 8 and blade flange 6, when the centre distance of the second positioning pin hole A13 and the second positioning pin hole B exists machining error, locating stud A and locating stud B can be in place simultaneously, locating stud A is straight pin and locating stud B to be rhombus pin be a kind of typical plane and two pits position structure, specific works principle is described later in detail in " Machine Tool Fixture Design handbook ", the utility model just make use of this prior art, be not intended to make improvements, therefore no longer describe in detail herein.
Particularly, as shown in Figure 3 and Figure 4, the center of the first positioning pin hole A11 and the angle α 1 between pitch variable bearings 3 axial connecting line and pitch variable bearings outer ring zero graduation line 15 equal the angle α 2 between the center of the second positioning pin hole A13 and blade flange 6 axial connecting line and blade flange zero graduation line 16; The center of the first positioning pin hole B12 and the angle β 1 between pitch variable bearings 3 axial connecting line and pitch variable bearings outer ring zero graduation line 15 equal the angle β 2 between the center of the second positioning pin hole B14 and blade flange 6 axial connecting line and blade flange zero graduation line 16.
As shown in Figure 5, there is inner ring soft ribbons district 18 in the inner ring 5 due to pitch variable bearings 3, outer ring 8 exists soft ribbons district, outer ring 17, in assembly process, need inner ring soft ribbons district 18 and soft ribbons district, outer ring 17 to be placed into non-load area 19, inner ring 5 is arranged on wheel hub 4 motionless, outer ring 8 is because rotating with blade 1, soft ribbons district, outer ring 17 is placed on just to the non-load area 19 in inner ring soft ribbons district 18, the wherein certain area of non-load area 19 to be the angle between wind direction F be 45 degree of scopes, the inner ring 5 of pitch variable bearings 3 fixedly mounts with wheel hub 4 in the present embodiment, the position in inner ring soft ribbons district 18 is fixing, unit working state is considered in 8, outer ring, namely oar zero degree position is become, the side that soft ribbons district, outer ring 17 is relative or identical in inner ring soft ribbons district 18.
And the installation between blade 1 with outer ring 8 overlaps as reference for installation with pitch variable bearings outer ring zero graduation line 15 and blade flange zero graduation line 16, ensures the accuracy of blade 1 relative to the mounting point, outer ring 8 of pitch variable bearings 3.Because α 1 equals α 2, and β 1 equals β 2, make locating stud A and locating stud B while locating blade flange 6 and outer ring 8, ensure the coincidence of pitch variable bearings outer ring zero graduation line 15 and blade flange zero graduation line 16, make the location of locating stud A and locating stud B to blade flange 6 and outer ring 8 more accurately reliable.
Embodiment two
A kind of mounting structure of pitch variable bearings, comprise blade, locating stud and outer ring and be bolted to connection the pitch variable bearings on wheel hub, blade comprises the blade flange being provided with screw, screw is equal with the number of openings on pitch variable bearings inner ring, and one_to_one corresponding, bolt passes the through hole on pitch variable bearings outer ring and is threaded in the screw on blade flange, and then is fixedly connected on the inner ring of pitch variable bearings by blade.
The end face that pitch variable bearings inner ring is connected with blade flange is provided with the first positioning pin hole, blade flange is provided with the second positioning pin hole, first positioning pin hole is corresponding with the second positioning pin hole, locating stud interts in the first positioning pin hole and the second positioning pin hole, by the inner ring relative positioning of blade flange and pitch variable bearings.
The difference of the present embodiment and embodiment one is that the outer ring of pitch variable bearings is arranged on wheel hub, and blade listened blade flange to be arranged on pitch variable bearings inner ring, and wherein mounting type is identical with embodiment one with installation principle, describes in detail no longer one by one herein.
For realizing goal of the invention, the utility model also provides a kind of impeller of wind-driven generator, comprises the mounting structure of embodiment one or the pitch variable bearings described in embodiment two.
The technological scheme that the utility model relates to, not only can be used for the installation of blade and pitch variable bearings, for the Flange joint at other positions, also has applicability.As wheel hub be connected with pitch variable bearings, wheel hub and rotatingshaft, base and dead axle etc.
Above embodiment makes the utility model have: reasonable in design, structure is simple, with low cost, highly versatile, can prevent from occurring misloading or dislocation between blade and pitch variable bearings, thus reduce the advantage of the maintenance cost of pitch variable bearings.
The above embodiment only have expressed several mode of execution of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (8)
1. a mounting structure for pitch variable bearings, is characterized in that:
The mounting structure of described pitch variable bearings is comprised blade, locating stud and inner ring and is fixedly connected on pitch variable bearings on wheel hub by multiple bolt;
Described blade comprises the blade flange being provided with multiple screw, described screw is equal with the number of openings on the outer ring of described pitch variable bearings, and one_to_one corresponding, multiple bolt passes the described through hole on described pitch variable bearings outer ring and is threaded in the screw on described blade flange, and then is fixedly connected on by described blade on the outer ring of described pitch variable bearings;
The end face that described pitch variable bearings outer ring is connected with described blade flange is provided with the first positioning pin hole, described blade flange is provided with the second positioning pin hole, described first positioning pin hole is corresponding with described second positioning pin hole, described locating stud interts in described first positioning pin hole and described second positioning pin hole, by the outer ring relative positioning of described blade flange and described pitch variable bearings.
2. the mounting structure of pitch variable bearings according to claim 1, is characterized in that:
One end that described locating stud inserts described second positioning pin hole is taper.
3. the mounting structure of pitch variable bearings according to claim 1, is characterized in that:
The quantity of described locating stud is two, is respectively locating stud A and locating stud B;
The quantity of described first positioning pin hole is two, is respectively the first positioning pin hole A and the first positioning pin hole B;
The quantity of described second positioning pin hole is two, is respectively the second positioning pin hole A and the second positioning pin hole B, and described first positioning pin hole A is corresponding with described second positioning pin hole A, and described first positioning pin hole B is corresponding with described second positioning pin hole B;
Described locating stud A interts in described first positioning pin hole A and described second positioning pin hole A, and described locating stud B interts in described first positioning pin hole B and described second positioning pin hole B.
4. the mounting structure of pitch variable bearings according to claim 3, is characterized in that:
The center of the center of described first positioning pin hole A, the center of described first positioning pin hole B and described pitch variable bearings outer ring is not on the same line.
5. the mounting structure of pitch variable bearings according to claim 3, is characterized in that:
The center of described first positioning pin hole A and the angle between described pitch variable bearings axial connecting line and described pitch variable bearings outer ring zero graduation line equal the angle between the center of described second positioning pin hole A and described blade flange axial connecting line and described blade flange zero graduation line;
The center of described first positioning pin hole B and the angle between described pitch variable bearings axial connecting line and described pitch variable bearings outer ring zero graduation line equal the angle between the center of described second positioning pin hole B and described blade flange axial connecting line and described blade flange zero graduation line.
6. the mounting structure of pitch variable bearings according to claim 3, is characterized in that:
Described locating stud A is straight pin, and the shape of described first positioning pin hole A and described second positioning pin hole A all matches with described locating stud A;
Described locating stud B is rhombus pin, and the shape of described first positioning pin hole B and described second positioning pin hole B all matches with described locating stud B;
Line between the center of described locating stud A and the center of described locating stud B is vertical with the long-diagonal of the rhombus in the cross section of described locating stud B.
7. a mounting structure for pitch variable bearings, is characterized in that:
The mounting structure of described pitch variable bearings comprises blade, locating stud and outer ring and is bolted to connection the pitch variable bearings on wheel hub;
Described blade comprises the blade flange being provided with screw, described screw is equal with the number of openings on described pitch variable bearings inner ring, and one_to_one corresponding, bolt passes the described through hole on described pitch variable bearings outer ring and is threaded in the screw on described blade flange, and then is fixedly connected on by described blade on the inner ring of described pitch variable bearings;
The end face that described pitch variable bearings inner ring is connected with described blade flange is provided with the first positioning pin hole, described blade flange is provided with the second positioning pin hole, described first positioning pin hole is corresponding with described second positioning pin hole, described locating stud interts in described first positioning pin hole and described second positioning pin hole, by the inner ring relative positioning of described blade flange and described pitch variable bearings.
8. an impeller for wind-driven generator, is characterized in that:
Described impeller comprises the mounting structure of the pitch variable bearings described in claim 1 to 7 any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520169908.5U CN204493087U (en) | 2015-03-24 | 2015-03-24 | The mounting structure of pitch variable bearings and the impeller of wind-driven generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520169908.5U CN204493087U (en) | 2015-03-24 | 2015-03-24 | The mounting structure of pitch variable bearings and the impeller of wind-driven generator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640558A (en) * | 2016-12-30 | 2017-05-10 | 北京金风科创风电设备有限公司 | Pitch bearing, blade, impeller and connection method for a wind turbine |
| CN106930908A (en) * | 2017-05-23 | 2017-07-07 | 北京三力新能科技有限公司 | A kind of pitch variable bearings component |
| CN107620679A (en) * | 2017-08-16 | 2018-01-23 | 新疆金风科技股份有限公司 | The attachment structure of blade and pitch variable bearings, connection method and wind power generating set |
| CN111594389A (en) * | 2019-05-07 | 2020-08-28 | 黑龙江职业学院(黑龙江省经济管理干部学院) | High-altitude butting device for fan impeller |
| CN112329305A (en) * | 2020-11-05 | 2021-02-05 | 中车株洲电力机车研究所有限公司 | Method for determining position and polishing amount of soft belt of variable-pitch bearing of wind turbine generator |
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2015
- 2015-03-24 CN CN201520169908.5U patent/CN204493087U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640558A (en) * | 2016-12-30 | 2017-05-10 | 北京金风科创风电设备有限公司 | Pitch bearing, blade, impeller and connection method for a wind turbine |
| WO2018120815A1 (en) * | 2016-12-30 | 2018-07-05 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Pitch bearing, blade, impeller of wind turbine and connecting method for wind turbine |
| US10801468B2 (en) | 2016-12-30 | 2020-10-13 | Beijing Goldwing Science & Creation Windpower Equipment Co., Ltd. | Pitch bearing, blade, impeller of wind turbine and connecting method for wind turbine |
| CN106930908A (en) * | 2017-05-23 | 2017-07-07 | 北京三力新能科技有限公司 | A kind of pitch variable bearings component |
| CN106930908B (en) * | 2017-05-23 | 2023-05-05 | 北京三力新能科技有限公司 | Variable-pitch bearing assembly |
| CN107620679A (en) * | 2017-08-16 | 2018-01-23 | 新疆金风科技股份有限公司 | The attachment structure of blade and pitch variable bearings, connection method and wind power generating set |
| CN111594389A (en) * | 2019-05-07 | 2020-08-28 | 黑龙江职业学院(黑龙江省经济管理干部学院) | High-altitude butting device for fan impeller |
| CN112329305A (en) * | 2020-11-05 | 2021-02-05 | 中车株洲电力机车研究所有限公司 | Method for determining position and polishing amount of soft belt of variable-pitch bearing of wind turbine generator |
| CN112329305B (en) * | 2020-11-05 | 2023-10-20 | 中车株洲电力机车研究所有限公司 | Method for determining soft belt position and polishing amount of variable-pitch bearing of wind turbine generator |
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