CN104625562A - Method of correcting blade dislocation of wind generating set - Google Patents
Method of correcting blade dislocation of wind generating set Download PDFInfo
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- CN104625562A CN104625562A CN201410816019.3A CN201410816019A CN104625562A CN 104625562 A CN104625562 A CN 104625562A CN 201410816019 A CN201410816019 A CN 201410816019A CN 104625562 A CN104625562 A CN 104625562A
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- blade
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- pitch variable
- variable bearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
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Abstract
The invention provides a method of correcting blade dislocation of a wind generating set. The method includes the following steps that 1, an impeller is rotated, and a blade is rotated to be upright and downward; 2, the blade is hung by a first connecting tool, and the blade is separated from a variable pitch bearing; 3, the blade is hung by a second connecting tool, the first connecting tool is detached, and the location of the blade is adjusted; 4, the blade is hung by the first connecting tool, the second connecting tool is detached, and the blade is installed on the variable pitch bearing. The method of correcting blade dislocation of the wind generating set has the advantages that the cost is low, the time consumption is shortened, the operation is simple and convenient, a crane is not needed, and the operation can conducted on the fan.
Description
Technical field
The present invention relates to technical field of wind power, particularly a kind of dislocation correcting method of blade of wind power generating set.
Background technology
In wind-driven generator, blade is the critical component absorbing wind energy.Blade is connected with pitch variable bearings by bolt, and the position of blades installation and angle directly affect the generating efficiency of wind-driven generator.Meanwhile, the bolt connecting blade is also very crucial, once damage, can cause huge loss.
In the installation and operation of wind-driven generator reality, if there is blades installation angle location dislocation, will generated energy be affected, even change fan design load, the safety of harm blower fan.Or if blades installation angle position is correct, but bolt hole does not align and misplaces, and bolt can be caused to be squeezed, and stand under load worsens, and finally causes bolt to damage, the safety of harm blower fan.
In existing technology, if there is the situation that blades installation location dislocation or bolt hole misplace, conventional solution uses crane to be dismantled by whole impeller to hang down, and after installation is readjusted on ground, then lifting is got on, and length consuming time, cost is high.If blower fan is positioned at sea, the time of replacing and cost will be higher.
Summary of the invention
The object of this invention is to provide a kind of cost low, consuming time short, simple to operation, do not need to use crane, and can at the dislocation correcting method of the blade of the wind power generating set of wind hands-operation.
For achieving the above object, the technical solution adopted in the present invention is:
A dislocation correcting method for the blade of wind power generating set, said method comprising the steps of:
A, rotary blade, by blade rotary to position straight down;
B, hang blade by the first connecting tooling, and itself and pitch variable bearings are split;
C, hang blade by the second connecting tooling, and pull down described first connecting tooling, adjustment leaf position;
D, blade of being sling by described first connecting tooling, and pull down described second connecting tooling, by blades installation on pitch variable bearings.
More preferably, step b comprises:
B1, remove part connecting bolt between blade and pitch variable bearings;
B2, in the position of removing connecting bolt, stay bolt is installed, and blade is connected with described first connecting tooling by described stay bolt, hang blade by described first connecting tooling;
B3, remove remaining attaching nut between blade and pitch variable bearings, and by described first connecting tooling, blade is separated with pitch variable bearings.
More preferably, the part connecting bolt removed in step b1 is evenly arrangement.
More preferably, in step b3, describedly by described first connecting tooling, the process needing the blade of error correction to be separated with pitch variable bearings to be comprised: by described first connecting tooling blade is separated with pitch variable bearings and remaining connecting bolt on blade is spun off completely from pitch variable bearings.
More preferably, in step c, the described process hanging blade by the second connecting tooling comprises: described second connecting tooling is connected with blade by remaining connecting bolt, and removes described stay bolt.
More preferably, steps d comprises:
D1, stay bolt is installed to the position of blade having been removed connecting bolt through the through hole of pitch variable bearings, and is connected with described first connecting tooling, to be sling blade by described first connecting tooling;
D2, remove described second connecting tooling, and make blade near pitch variable bearings by described first connecting tooling;
D3, on blade, attaching nut installed by remaining connecting bolt, thus by blades installation on pitch variable bearings.
More preferably, described dislocation correcting method also comprises:
E, remove described first connecting tooling, and the connecting bolt between polishing blade and pitch variable bearings.
More preferably, step a also comprises: support blade, makes blade keep tilt angles.
More preferably, step b comprises:
B1 ', remove part attaching nut between blade and pitch variable bearings;
B2 ', make screwed hole at the bolt tail removing attaching nut, and on described screwed hole construction bolt extension fixture, and blade to be connected with described first connecting tooling by described bolt extension fixture, to hang blade by described first connecting tooling;
B3 ', remove remaining attaching nut between blade and pitch variable bearings, and by described first connecting tooling, blade is separated with pitch variable bearings.
More preferably, in step c, the described process hanging blade by the second connecting tooling comprises: described second connecting tooling is connected with blade by remaining connecting bolt, and removes described bolt extension fixture.
More preferably, steps d comprises:
D1 ', bolt extension fixture is installed on blade through the through hole of pitch variable bearings and removes on the bolt of nut, and be connected with described first connecting tooling, to be sling blade by described first connecting tooling;
D2 ', remove described second connecting tooling, and make blade near pitch variable bearings by described first connecting tooling;
D3 ', on blade, attaching nut installed by remaining connecting bolt, thus by blades installation on pitch variable bearings.
More preferably, described dislocation correcting method also comprises:
E ', remove described bolt extension fixture, and the connecting bolt between polishing blade and pitch variable bearings.
More preferably, it is characterized in that, described first connecting tooling is connected on the miscellaneous part of wheel hub and/or impeller.
More preferably, it is characterized in that, described second connecting tooling is connected on the miscellaneous part of wheel hub and/or impeller.
The invention has the beneficial effects as follows: cost is low, consuming time short, simple to operation, can, at wind hands-operation, not need to use crane.
Accompanying drawing explanation
Fig. 1 is the dislocation correcting method flow chart of the blade of wind power generating set of the present invention;
Fig. 2 is the schematic flow sheet of step b in embodiment one;
Fig. 3 is the schematic flow sheet of steps d in embodiment one;
Fig. 4 is the schematic flow sheet of step b ' in embodiment two;
Fig. 5 is steps d in embodiment two ' schematic flow sheet;
Fig. 6 is the annexation schematic diagram of blade and pitch variable bearings;
Fig. 7 is the schematic diagram of the first connecting tooling duty in embodiment one;
Fig. 8 is the schematic diagram of the second connecting tooling duty in embodiment one;
Wherein: 1-blade; 2-pitch variable bearings; 3-connecting bolt; 4-attaching nut; 5-first connecting tooling; 6-second connecting tooling; 7-stay bolt; 8-bottle gouard moved by hands.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, be further elaborated below in conjunction with the dislocation correcting method of drawings and Examples to the blade of wind power generating set of the present invention.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment one
As shown in Fig. 1, Fig. 6, Fig. 7 and Fig. 8, a kind of dislocation correcting method of blade of wind power generating set comprises the following steps: a, rotary blade, is rotated by blade 1 to position straight down; B, hang blade 1 by the first connecting tooling 5, and itself and pitch variable bearings 2 are split; C, hang blade 1 by the second connecting tooling 6, and pull down the first connecting tooling 5, adjustment blade 1 position; D, blade 1 of being sling by the first connecting tooling 5, and pull down the second connecting tooling 5, blade 1 is installed on pitch variable bearings 2.
Wherein, blade 1 is for needing the target blade of error correction, and the first connecting tooling 5 and the second connecting tooling 6 all manually can carry out lifting operation by cucurbit 8, and bottle gouard moved by hands 8 can be connected to other positions of wheel hub and/or impeller, so just can not need to use crane operation, reduce cost.Adopt and hang blade 1 by the second connecting tooling 6, and pull down the first connecting tooling 5, the method that adjustment blade 1 position is such, the dislocation work for correction of wind generator set blade can be completed on blower fan, not only convenient operation, and consuming time short.
Particularly, as shown in Figure 2, step b comprises: b1, remove part connecting bolt 3 between blade 1 and pitch variable bearings 2; B2, in the position of removing connecting bolt 3, stay bolt 7 is installed, and blade 1 is connected with the first connecting tooling 5 by stay bolt 7, hangs blade by the first connecting tooling 5; B3, remove remaining attaching nut 4 between blade 1 and pitch variable bearings 2, and be separated needing the blade 1 of error correction with pitch variable bearings 2 by the first connecting tooling 5.
After part connecting bolt 3 between step b1 blade 1 and pitch variable bearings 2 is removed, the screw of blade 1 and the through hole of corresponding pitch variable bearings 2 are in idle condition, at this moment start to carry out step b2, one end of stay bolt 7 is passed from the through hole pitch variable bearings 2 and is threaded on the screw of blade 1, the other end is connected with the first connecting tooling 5, tension bottle gouard moved by hands 8, now bottle gouard moved by hands 8 bears the weight of blade 1 by the first connecting tooling 5 and stay bolt 7, remaining connecting bolt 3 is in the state of relative relaxation, at this moment carry out step b3 and can remove remaining attaching nut 4 very easily.After attaching nut 4 is removed, remaining connecting bolt 3 still keeps the state be threaded with blade 1, but there is not the relation of being fixedly connected with pitch variable bearings 2 in blade 1, at this moment by operating bottle gouard moved by hands 9 by blade 1 to transferring, blade 1 is separated with pitch variable bearings 2, and in separation process, remaining connecting bolt 3 in the through hole of pitch variable bearings 2, follows blade 1 move.Particularly, in step b3, by the first connecting tooling 5, the process needing the blade 1 of error correction to be separated with pitch variable bearings 2 is comprised: by the first connecting tooling 5 blade 1 is separated with pitch variable bearings 2 and remaining connecting bolt 4 on blade 1 is spun off completely from pitch variable bearings 2.Being separated with pitch variable bearings 2 by blade 1 is that on blade 1, remaining connecting bolt 4 spins off completely from pitch variable bearings 2, blade 1 can be made to do coaxial rotating relative to pitch variable bearings 2, and then complete the error correction work of blade 1.
More preferably, the part connecting bolt 3 removed in step b1 is evenly arrangements.Wherein said even arrangement refers to the circumferentially even cloth formed at the screw of blade 1, the stay bolt 7 connected by original position so also can be evenly arrangement, bottle gouard moved by hands 8 connects the stay bolt 7 of evenly arrangement by the first jockey 5, can ensure to blade 1 lift steady, thus ensure that carrying out smoothly of error correction work.
Particularly, in step c, the process being hung blade 1 by the second connecting tooling 6 is comprised: the second connecting tooling 6 is connected with blade 1 by remaining connecting bolt 3, and removes stay bolt 7.After remaining connecting bolt 4 spins off completely from pitch variable bearings 2, second connecting tooling 6 is connected on remaining connecting bolt 4, and manually cucurbit 8 connects the second connecting tooling 6, tension bottle gouard moved by hands 8, bottle gouard moved by hands 8 is made to hang blade 1 by the second connecting tooling 6 and remaining connecting bolt 3 and bear the weight of blade 1, now the first connecting tooling 5 and stay bolt 7 are in relaxed state, remove stay bolt 7, avoid stay bolt 7 to hinder blade 1 to do coaxial rotary motion relative to pitch variable bearings 2.
Particularly, as shown in Figure 3, steps d comprises: d1, stay bolt 7 is installed to the position of blade 1 having been removed connecting bolt 3 through the through hole of pitch variable bearings 2, and is connected with the first connecting tooling 5, to be sling blade 1 by the first connecting tooling 5; D2, remove the second connecting tooling 6, and make blade 1 near pitch variable bearings 2 by the first connecting tooling 5; D3, on blade 1, attaching nut 4 installed by remaining connecting bolt 3, thus blade 1 is installed on pitch variable bearings 2.
When blade 1 to do after coaxial rotating moves to correct position relative to pitch variable bearings 2, carry out steps d 1, now bottle gouard moved by hands 8 hangs blade 1 by the first connecting tooling 5 and stay bolt 7 and bears the weight of blade 1, now the second connecting tooling 6 and remaining connecting bolt 3 are in relaxed state, carry out steps d 2 and remove the second connecting tooling 6, blade 1 is sling by the first connecting tooling 5 and stay bolt 7 by operation bottle gouard moved by hands 8, remaining connecting bolt 3 is made to insert in the through hole of pitch variable bearings 2, and remaining connecting bolt 3 is moved in the through hole of pitch variable bearings 2, steps d 3 is entered after remaining connecting bolt 3 exposes head from the through hole upper end of pitch variable bearings 2, by installing attaching nut 4 on connecting bolt 3, blade 1 is installed on pitch variable bearings 2.
Particularly, dislocation correcting method also comprises, and e, removes the first connecting tooling 5, and the connecting bolt 3 between polishing blade 1 and pitch variable bearings 2.After attaching nut 4 being installed on connecting bolt 3, blade 1 is fixed together with pitch variable bearings 2, now the weight of blade 1 is born by pitch variable bearings 2, first connecting tooling 5 and stay bolt 7 are in relaxed state, first connecting tooling 5 and stay bolt 7 removed and install connecting bolt 3 and attaching nut 4 in the installation site of stay bolt 7, whole error correction work completes.
As a kind of embodiment, step a also comprises: support blade 1, makes blade 1 keep tilt angles.There is inclination angle at error correction procedure Leaf 1, and non-fully straight down, by bracing or strutting arrangement, blade 1 is supported, make blade 1 keep tilt angles.Ensure that the accuracy of error correction work.
Embodiment two
The difference of the method for operating of the present embodiment and embodiment one is, as shown in Figure 4, step b comprises, b1 ', remove part attaching nut between blade and pitch variable bearings, b2 ', removing attaching nut bolt tail make screwed hole, and on screwed hole construction bolt extension fixture, and blade is connected with the first connecting tooling by bolt extension fixture, blade is hung by the first connecting tooling, b3 ', remove remaining attaching nut between blade and pitch variable bearings, and by the first connecting tooling, blade is separated with pitch variable bearings.
Wherein relative to embodiment one, just the stay bolt 7 in embodiment one is become bolt extension fixture, due in real work, error correction work is subject to the impact of actual environment or structure, stay bolt 7 cannot may use because its length is excessive, therefore the part attaching nut of b1 ' only between dismounting blade and pitch variable bearings is adopted, at this moment the connecting bolt removing attaching nut still keeps thread connection relation with blade, enter step b2 ', the bolt tail having removed attaching nut makes screwed hole, and on screwed hole construction bolt extension fixture, and blade is connected with the first connecting tooling by bolt extension fixture, blade is hung by the first connecting tooling, bolt extension fixture can be lifting bolt, such first connecting tooling can by conventional connected mode, be connected with lifting bolt.
Particularly, in step c, the process being hung blade by the second connecting tooling is comprised: the second connecting tooling is connected with blade by remaining connecting bolt, and removes bolt extension fixture.Particularly, as shown in Figure 5, steps d comprises: d1 ', to be installed on blade by bolt extension fixture to remove on the bolt of nut through the through hole of pitch variable bearings, and is connected with the first connecting tooling, to be sling blade by the first connecting tooling; D1 ', remove the second connecting tooling, and make blade near pitch variable bearings by the first connecting tooling; D3 ', on blade, attaching nut installed by remaining connecting bolt, thus by blades installation on pitch variable bearings.Particularly, the correcting method that misplaces also comprises.E ', dismounting bolt extension fixture, and the connecting bolt between polishing blade and pitch variable bearings.
Because the operating principle of the present embodiment is identical with the operating principle of embodiment one, therefore no longer describe in detail, the present embodiment can make the adaptability of this dislocation correcting method stronger herein.
Above embodiment makes the present invention have: cost is low, consuming time short, simple to operation, does not need to use crane, can in the advantage of wind hands-operation.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (14)
1. a dislocation correcting method for the blade of wind power generating set, is characterized in that, said method comprising the steps of:
A, rotary blade, by blade rotary to position straight down;
B, hang blade by the first connecting tooling, and itself and pitch variable bearings are split;
C, hang blade by the second connecting tooling, and pull down described first connecting tooling, adjustment leaf position;
D, blade of being sling by described first connecting tooling, and pull down described second connecting tooling, by blades installation on pitch variable bearings.
2. the dislocation correcting method of the blade of wind power generating set according to claim 1, it is characterized in that, step b comprises:
B1, dismounting blade and pitch variable bearings between part connecting bolt;
B2, in the position of removing connecting bolt, stay bolt is installed, and blade is connected with described first connecting tooling by described stay bolt, hang blade by described first connecting tooling;
B3, remove remaining attaching nut between blade and pitch variable bearings, and by described first connecting tooling, blade is separated with pitch variable bearings.
3. the dislocation correcting method of the blade of wind power generating set according to claim 2, is characterized in that, the part connecting bolt removed in step b1 is evenly arrangement.
4. the dislocation correcting method of the blade of wind power generating set according to claim 2, it is characterized in that, in step b3, describedly by described first connecting tooling, the process needing the blade of error correction to be separated with pitch variable bearings to be comprised: by described first connecting tooling blade is separated with pitch variable bearings and remaining connecting bolt on blade is spun off completely from pitch variable bearings.
5. the dislocation correcting method of the blade of wind power generating set according to claim 2, it is characterized in that, in step c, the described process hanging blade by the second connecting tooling comprises: described second connecting tooling is connected with blade by remaining connecting bolt, and removes described stay bolt.
6. the dislocation correcting method of the blade of wind power generating set according to claim 5, it is characterized in that, steps d comprises:
D1, stay bolt is installed to the position of blade having been removed connecting bolt through the through hole of pitch variable bearings, and is connected with described first connecting tooling, to be sling blade by described first connecting tooling;
D2, remove described second connecting tooling, and make blade near pitch variable bearings by described first connecting tooling;
D3, on blade, attaching nut installed by remaining connecting bolt, thus by blades installation on pitch variable bearings.
7. the dislocation correcting method of the blade of wind power generating set according to claim 6, is characterized in that, described dislocation correcting method also comprises:
E, remove described first connecting tooling, and the connecting bolt between polishing blade and pitch variable bearings.
8. the dislocation correcting method of the blade of wind power generating set according to claim 1, it is characterized in that, step a also comprises: support blade, makes blade keep tilt angles.
9. the dislocation correcting method of the blade of wind power generating set according to claim 1, it is characterized in that, step b comprises:
B1 ', remove part attaching nut between blade and pitch variable bearings;
B2 ', make screwed hole at the bolt tail removing attaching nut, and on described screwed hole construction bolt extension fixture, and blade to be connected with described first connecting tooling by described bolt extension fixture, to hang blade by described first connecting tooling;
B3 ', remove remaining attaching nut between blade and pitch variable bearings, and by described first connecting tooling, blade is separated with pitch variable bearings.
10. the dislocation correcting method of the blade of wind power generating set according to claim 9, it is characterized in that, in step c, the described process hanging blade by the second connecting tooling comprises: described second connecting tooling is connected with blade by remaining connecting bolt, and removes described bolt extension fixture.
The dislocation correcting method of the blade of 11. wind power generating set according to claim 9, it is characterized in that, steps d comprises:
D1 ', bolt extension fixture is installed on blade through the through hole of pitch variable bearings and removes on the bolt of nut, and be connected with described first connecting tooling, to be sling blade by described first connecting tooling;
D2 ', remove described second connecting tooling, and make blade near pitch variable bearings by described first connecting tooling;
D3 ', on blade, attaching nut installed by remaining connecting bolt, thus by blades installation on pitch variable bearings.
The dislocation correcting method of the blade of 12. wind power generating set according to claim 11, is characterized in that, described dislocation correcting method also comprises:
E ', remove described bolt extension fixture, and the connecting bolt between polishing blade and pitch variable bearings.
The dislocation correcting method of the blade of 13. wind power generating set according to claim 1 to 12 any one, it is characterized in that, described first connecting tooling is connected on the miscellaneous part of wheel hub and/or impeller.
The dislocation correcting method of the blade of 14. wind power generating set according to claim 1 to 12 any one, it is characterized in that, described second connecting tooling is connected on the miscellaneous part of wheel hub and/or impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410816019.3A CN104625562B (en) | 2014-12-23 | 2014-12-23 | The dislocation correcting method of the blade of wind power generating set |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410816019.3A CN104625562B (en) | 2014-12-23 | 2014-12-23 | The dislocation correcting method of the blade of wind power generating set |
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| CN104625562A true CN104625562A (en) | 2015-05-20 |
| CN104625562B CN104625562B (en) | 2017-08-11 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110836172A (en) * | 2018-08-19 | 2020-02-25 | 北京国电思达科技有限公司 | Method for adjusting blade angle by replacing bolt in air when fan blade bolt is broken and dislocated |
| 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 |
| CN111963392A (en) * | 2020-07-22 | 2020-11-20 | 明阳智慧能源集团股份公司 | Method for solving zero tooth abrasion of variable pitch bearing of wind generating set |
| CN112594146A (en) * | 2020-08-28 | 2021-04-02 | 河北新天科创新能源技术有限公司 | Axial rotation position adjusting method for variable-pitch bearing of wind generating set |
| CN113482867A (en) * | 2021-07-28 | 2021-10-08 | 东方电气（天津）风电叶片工程有限公司 | High-altitude separation method for fan blades |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110836172A (en) * | 2018-08-19 | 2020-02-25 | 北京国电思达科技有限公司 | Method for adjusting blade angle by replacing bolt in air when fan blade bolt is broken and dislocated |
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| CN111963392A (en) * | 2020-07-22 | 2020-11-20 | 明阳智慧能源集团股份公司 | Method for solving zero tooth abrasion of variable pitch bearing of wind generating set |
| CN111963392B (en) * | 2020-07-22 | 2021-12-10 | 明阳智慧能源集团股份公司 | Method for solving zero tooth abrasion of variable pitch bearing of wind generating set |
| CN112594146A (en) * | 2020-08-28 | 2021-04-02 | 河北新天科创新能源技术有限公司 | Axial rotation position adjusting method for variable-pitch bearing of wind generating set |
| CN113482867A (en) * | 2021-07-28 | 2021-10-08 | 东方电气（天津）风电叶片工程有限公司 | High-altitude separation method for fan blades |
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| CN104625562B (en) | 2017-08-11 |
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