CN207830042U - The impeller and wind power generating set of wind power generating set - Google Patents
The impeller and wind power generating set of wind power generating set Download PDFInfo
- Publication number
- CN207830042U CN207830042U CN201820192094.0U CN201820192094U CN207830042U CN 207830042 U CN207830042 U CN 207830042U CN 201820192094 U CN201820192094 U CN 201820192094U CN 207830042 U CN207830042 U CN 207830042U
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- wind power
- power generating
- generating set
- rod part
- impeller
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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 utility model provides a kind of impeller and wind power generating set of wind power generating set.The impeller of wind power generating set includes wheel hub, blade and the pitch variable bearings for connecting wheel hub and blade, and blade is connected to pitch variable bearings by multiple connection components, and each connection component includes：Connecting elements, including thread rod part and inclination suppressing portion, inclination suppressing portion is axially extending along its from one end of thread rod part, and diameter is less than the diameter of thread rod part；First counterpart, it is built in blade, and include inhibiting hole portion with the matched screw thread hole portion of thread rod part and with the matched inclination of suppressing portion is tilted, wherein, connecting elements passes through the through-hole of pitch variable bearings to be inserted into the second counterpart, tilts the fit clearance that suppressing portion inhibits the fit clearance of hole portion to be less than thread rod part and screw thread hole portion with inclination；Second counterpart is detachably fastened to the other end of thread rod part.The service life of connecting elements and pitch variable bearings can be improved in the impeller of wind power generating set according to the present utility model.
Description
Technical field
The utility model is related to a kind of technical field of wind power generation, and in particular to a kind of impeller and packet of wind power generating set
Include the wind power generating set of the impeller.
Background technology
As the critical component of wind power generating set, blade is the power intake of entire transmission chain, and wind load directly acts on
On blade, load is transmitted to wheel hub by blade connection, and then is transmitted to entire power train.The operating mode of wind power generating set
Due to wind load magnitude is big, wind load size and the continual variation of wind direction and become severe.
Traditional mounting method for blade do not consider blade connection external screw thread and blade embedded nut internal thread it
Between fit clearance, but one end of blade connection is inserted into after blade embedded nut and is directly again inserted into the other end
In the through-hole of pitch variable bearings.Connecting blade and during pitch variable bearings, although blade screw element and blade embedded nut it
Between be screwed, but due to the length of blade connection is longer and the external screw thread of blade connection and blade embedded nut in
There are fit clearances between screw thread, therefore blade connection can tilt down under gravity, cause blade connection and
The concentricity of the through-hole of pitch variable bearings reduces.Concentricity reduce can cause blade connection external screw thread and pitch variable bearings through-hole it
Between interfere and scratch, cause the external screw thread of blade connection to damage, the through-hole walls of pitch variable bearings occur pit, cut and
The defects of destroying surface anticorrosion layer.
In addition, the concentricity of the through-hole of blade connection and pitch variable bearings reduces the fatigue load that also will increase blade connection
Lotus and the service life for shortening blade connection.The hole wall right and wrong of the screw thread position of blade connection and the through-hole of pitch variable bearings
Often weak position, surface gap, erosion resistant coating missing will have a direct impact on its fatigue life, and then the destruction process that can accelerate fatigue.
It is especially pronounced especially at sea in the environment of equal seriously corrodeds.
According to statistics, the damage of blade connection account for entire wind power generating set connector failure 70% or more, and
The mechanical component failures ratio that the fracture of pitch variable bearings accounts for wind power generating set is also quite big, so improving blade connection and change
The anti-fatigue ability that paddle shaft is held is most important.
Utility model content
Therefore, the purpose of this utility model is to provide a kind of impeller of wind power generating set and wind power generating set, with
The impeller for solving existing wind power generating set is interfered and is cut to pieces there are the hole wall of blade connection and the through-hole of pitch variable bearings
It rubs and leads to problems such as anti-fatigue ability reduce, reduced service life.
One side according to the present utility model provides a kind of impeller of wind power generating set, the impeller of wind power generating set
It may include that wheel hub, blade and the pitch variable bearings that wheel hub and blade are connected to each other, blade are connected to by multiple connection components
Pitch variable bearings, wherein each connection component may include：Connecting elements, including thread rod part and inclination suppressing portion, tilt suppressing portion
From one end of thread rod part along the axially extending of thread rod part, the diameter of thread rod part is more than the diameter for tilting suppressing portion；The
One counterpart, is built in blade, and the first counterpart includes inhibiting with the matched screw thread hole portion of thread rod part and with tilting
The matched inclination in portion inhibits hole portion, wherein and connecting elements is inserted into across the through-hole of pitch variable bearings in the first counterpart, and
It tilts suppressing portion and tilts the fit clearance for inhibiting hole portion less than the fit clearance of thread rod part and screw thread hole portion；Second cooperation
Part is detachably fastened to the other end of thread rod part.
Preferably, thread rod part can be studs.
Preferably, the second counterpart can be nut.
Preferably, the outer surface of thread rod part can be connect by curved surface with the outer surface transition for tilting suppressing portion.
Preferably, it can be H8/h7 to tilt suppressing portion to inhibit the fit tolerance of hole portion with inclination.
Another aspect according to the present utility model provides a kind of wind power generating set, wherein wind power generating set may include
The impeller of above-mentioned wind power generating set.
The impeller of wind power generating set according to the present utility model tilts the connecting elements and shape of suppressing portion by being formed with
The first counterpart for inhibiting hole portion is tilted at having, it can be in the installation process of blade and pitch variable bearings so that connecting elements and variable pitch
The central axis coaxial of the through-hole of bearing, screw thread or pitch variable bearings without scratching and causing connecting elements due to interfering
Through-hole hole wall damage.
In addition, the impeller of wind power generating set according to the present utility model, by ensuring connecting elements and pitch variable bearings
The concentricity of through-hole can reduce the bending load suffered by connecting elements, therefore the use of connecting elements and pitch variable bearings can be improved
Service life.
Description of the drawings
Through a description of the embodiment given below with reference to the drawings, the above-mentioned and other purposes and feature of the utility model
It will become apparent, in the accompanying drawings：
Fig. 1 is the signal of the partial structurtes of the impeller for the wind power generating set for showing embodiment according to the present utility model
Figure.
Fig. 2 is that the part after the installation of the connecting elements and the first counterpart that show embodiment according to the present utility model is put
Big schematic diagram.
Fig. 3 is the schematic diagram for the connecting elements for showing embodiment according to the present utility model.
Fig. 4 is the partial schematic diagram for the first counterpart for showing embodiment according to the present utility model.
Drawing reference numeral explanation：
10：Wheel hub；20：Pitch variable bearings；21：Outer ring；22：Inner ring；30：Blade；40：Connection component；41：Thread rod part；
42：Tilt suppressing portion；50：First counterpart；51：Screw thread hole portion；52：It tilts and inhibits hole portion；60：Second counterpart.
Specific implementation mode
Now, embodiment according to the present utility model is described in detail with reference to the accompanying drawings, its example is shown in the drawings,
In, identical label always shows identical component.
Fig. 1 is the signal of the partial structurtes of the impeller for the wind power generating set for showing embodiment according to the present utility model
Figure.
As shown in Figure 1, the impeller of wind power generating set may include wheel hub 10, blade 30 and by wheel hub 10 and blade 30 that
The pitch variable bearings 20 of this connection.Pitch variable bearings 20 may include outer ring 21 and inner ring 22.As an example, the outer ring 21 of pitch variable bearings 20
Wheel hub 10 is may be connected to, the inner ring 22 of pitch variable bearings 20 may be connected to blade 30, but not limited to this, it can be applied specifically according to using
Selection.In addition, the inner ring 22 of pitch variable bearings 20 can be installed to blade 30 by multiple connection components.
Describe the concrete structure of connection component in detail next, with reference to Fig. 2 to Fig. 4.
Connection component may include connecting elements 40, the first counterpart 50 and the second counterpart 60.Connecting elements 40 may include
Thread rod part 41 and inclination suppressing portion 42.Tilting suppressing portion 42 can be from one end of thread rod part 41 along the axial direction of thread rod part 41
Extend.The diameter of thread rod part 41 can be more than the diameter for tilting suppressing portion 42.In the present embodiment, thread rod part 41 can be double
Header stud, but not limited to this, as long as being formed with external screw thread so that blade 30 and pitch variable bearings 20 can be connected to each other.This
Outside, the outer surface of thread rod part 41 can be connect by curved surface with the outer surface transition for tilting suppressing portion 42, to reduce stress
It concentrates.
First counterpart 50 is cylindrical in shape, and the first counterpart 50 can be built in blade 30, specifically, the first cooperation
Part 50 is arranged in the root of blade 30.First counterpart 50 can be formed with 41 matched screw thread hole portion 51 of thread rod part and with
It tilts 42 matched inclination of suppressing portion and inhibits hole portion 52.When connecting blade 30 and pitch variable bearings 20, connecting elements 40 can be worn
It crosses the through-hole of pitch variable bearings 20 and is inserted into the first counterpart 50.Specifically, thread rod part 41 can be plugged into the logical of inner ring 22
It in hole and screw thread hole portion 51, and is screwed with screw thread hole portion 51, tilts suppressing portion 42 and can be plugged into inclination inhibition hole portion 52
In.Tilting suppressing portion 42 and tilting inhibits the fit clearance of hole portion 52 to be smaller than between thread rod part 41 and the cooperation of screw thread hole portion 51
Gap, to connect blade 30 and variable pitch with the cooperation for tilting inhibition hole portion 52 to reduce thread rod part 41 by tilting suppressing portion 42
During bearing 20 due to gravity inclined degree.
In the present embodiment, it can be polished rod structure to tilt suppressing portion 42, and it can be unthreaded hole structure to tilt inhibition hole portion 52,
Therefore tilting suppressing portion 42 can inhibit hole portion 52 to slide relative to tilting, in order to manufacture and install.Optionally, suppressing portion is tilted
42 with tilt inhibit hole portion 52 fit tolerance can be H8/h7, but not limited to this, as long as the fit tolerance be less than thread rod part
41 with the fit clearance of screw thread hole portion 51.
Second counterpart 60 can be detachably fastened to the other end of thread rod part 41 by screw thread.Optionally, second matches
Component 60 can be nut.When connecting the inner ring 22 and blade 30 of pitch variable bearings 20, the is inserted into one end of connecting elements 40
After one counterpart 50, the other end of connecting elements 40 can be plugged into the through-hole of inner ring 22 of pitch variable bearings 20, and can lead to
The fastening of the second counterpart 60 is crossed, pitch variable bearings 20 and blade 30 are connected to each other.
In the following, the installation process of pitch variable bearings 20 and blade 30 will be described in detail, in order to more fully understand according to this reality
With the use of the connection component of property.
First, prepare to be embedded with the first counterpart 50 in position corresponding with the through-hole of inner ring 22 of pitch variable bearings 20
Blade 30.Then, selection is inserted into pilot pin in two or more first counterparts 50, and in remaining first counterpart 50
Screw thread hole portion 51 in screw in connecting elements 40, and ensure that the thread rod part 41 of connecting elements 40 and pilot pin all have properly
Extension elongation, to be inserted into the through-hole of inner ring 22, the inclination suppressing portion 42 of connecting elements 40 is by sliding at this time
The inclination for being inserted into the first counterpart 50 inhibits in hole portion 52.Then, by the horizontal lifting of blade 30 so that the Method for Installation of blade 30
It is blue parallel with the mounting flange of pitch variable bearings 20, and make the center line of connecting elements 40 and pilot pin and the through-hole of inner ring 22
Coaxially.Then, slow moving blade 30 so that connecting elements 40 and pilot pin flow slowly over the through-hole of inner ring 22, confirm blade
After 30 mounting flange and the mounting flange of inner ring 22 are completely superposed, the second connecting elements 40 is fastened using the second counterpart 60.
Then, pilot pin is disassembled, connecting elements 40 is screwed in the first counterpart 50 for disassembling pilot pin, and match by second
Component 60 is fastened.According to aforesaid operations, you can complete the connection of pitch variable bearings 20 and blade 30.
The impeller of wind power generating set according to the present utility model tilts the connecting elements and shape of suppressing portion by being formed with
The first counterpart for inhibiting hole portion is tilted at having, it can be in the installation process of blade and pitch variable bearings so that connecting elements and variable pitch
The central axis coaxial of the through-hole of bearing, screw thread or pitch variable bearings without scratching and causing connecting elements due to interfering
Through-hole hole wall damage.
In addition, the impeller of wind power generating set according to the present utility model, by ensuring connecting elements and pitch variable bearings
The concentricity of through-hole can reduce the bending load suffered by connecting elements, therefore the use of connecting elements and pitch variable bearings can be improved
Service life.
Another embodiment according to the present utility model can provide a kind of wind power generating set including above-mentioned impeller, due to this
Wind power generating set has effect identical with said effect, therefore will not be described in great detail.
Although the embodiments of the present invention are described in detail above, those skilled in the art are not departing from this reality
With in novel spirit and scope, various modifications and deformation can be made to the embodiments of the present invention.It is understood that
Apparently, these modification and variation will fall into the embodiments of the present invention defined by claim to those skilled in the art
In spirit and scope.
Claims (6)
1. a kind of impeller of wind power generating set, which is characterized in that the impeller of the wind power generating set includes wheel hub (10), leaf
Piece (30) and the pitch variable bearings (20) that the wheel hub (10) and the blade (30) are connected to each other, the blade (30) pass through
Multiple connection components are connected to the pitch variable bearings (20), wherein each connection component includes：
Connecting elements (40), including thread rod part (41) and suppressing portion (42) is tilted, the inclination suppressing portion (42) is from the spiral shell
The one end in rasp bar portion (41) is axially extending along the thread rod part (41), and the diameter of the thread rod part (41) is more than described
Tilt the diameter of suppressing portion (42)；
First counterpart (50) is built in the blade (30), and first counterpart (50) includes and the threaded rod
The matched screw thread hole portion (51) in portion (41) and inhibit hole portion (52) with the matched inclination of the inclination suppressing portion (42),
In, the connecting elements (40) passes through the through-hole of the pitch variable bearings (20) and is inserted into first counterpart (50), and
It is described tilt suppressing portion (42) with it is described tilt inhibit hole portion (52) fit clearance less than the thread rod part (41) with it is described
The fit clearance of screw thread hole portion (51)；
Second counterpart (60), is detachably fastened to the other end of the thread rod part (41).
2. the impeller of wind power generating set according to claim 1, which is characterized in that the thread rod part (41) is double end
Stud.
3. the impeller of wind power generating set according to claim 2, which is characterized in that the appearance of the thread rod part (41)
Face is connect by curved surface with the outer surface transition of the inclination suppressing portion (42).
4. the impeller of wind power generating set according to claim 2, which is characterized in that second counterpart (60) is spiral shell
It is female.
5. the impeller of wind power generating set according to any one of claim 1 to 4, which is characterized in that the inclination suppression
Portion (42) processed inhibits the fit tolerance of hole portion (52) for H8/h7 with described tilt.
6. a kind of wind power generating set, which is characterized in that the wind power generating set includes described in any one of claim 1-5
Wind power generating set impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820192094.0U CN207830042U (en) | 2018-01-30 | 2018-01-30 | The impeller and wind power generating set of wind power generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820192094.0U CN207830042U (en) | 2018-01-30 | 2018-01-30 | The impeller and wind power generating set of wind power generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207830042U true CN207830042U (en) | 2018-09-07 |
Family
ID=63396917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820192094.0U Active CN207830042U (en) | 2018-01-30 | 2018-01-30 | The impeller and wind power generating set of wind power generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207830042U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207035A (en) * | 2020-01-13 | 2020-05-29 | 山东中车风电有限公司 | Method for rectifying deviation of blade of wind generating set |
| CN111608853A (en) * | 2020-07-01 | 2020-09-01 | 上海电气风电集团股份有限公司 | Fan blade |
| CN114483488A (en) * | 2022-01-14 | 2022-05-13 | 中车山东风电有限公司 | Blade switching device of wind generating set and manufacturing method |
-
2018
- 2018-01-30 CN CN201820192094.0U patent/CN207830042U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207035A (en) * | 2020-01-13 | 2020-05-29 | 山东中车风电有限公司 | Method for rectifying deviation of blade of wind generating set |
| CN111207035B (en) * | 2020-01-13 | 2021-02-05 | 山东中车风电有限公司 | Method for rectifying deviation of blade of wind generating set |
| CN111608853A (en) * | 2020-07-01 | 2020-09-01 | 上海电气风电集团股份有限公司 | Fan blade |
| CN111608853B (en) * | 2020-07-01 | 2022-01-21 | 上海电气风电集团股份有限公司 | Fan blade |
| CN114483488A (en) * | 2022-01-14 | 2022-05-13 | 中车山东风电有限公司 | Blade switching device of wind generating set and manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee after: Jinfeng Technology Co.,Ltd. Address before: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee before: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |