CN103212939A - Processing method for repairing blade tip mechanism of wind turbine generator set - Google Patents
Processing method for repairing blade tip mechanism of wind turbine generator set Download PDFInfo
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- CN103212939A CN103212939A CN2013101556528A CN201310155652A CN103212939A CN 103212939 A CN103212939 A CN 103212939A CN 2013101556528 A CN2013101556528 A CN 2013101556528A CN 201310155652 A CN201310155652 A CN 201310155652A CN 103212939 A CN103212939 A CN 103212939A
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- blade tip
- side plate
- orientating box
- backboard
- bolt
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Abstract
The processing method for repairing a blade tip mechanism of a wind turbine generator set. The processing method includes the following steps: dismantling parts inside a blade tip and a guiding box; welding a bolt at the deformation zone of a back plate of the guiding box, installing a back plate correction tool at the edge of the guiding box, the bolt penetrates through the back plate correction tool and is connected with a nut, carrying out correction on the back plate of the guiding box by screwing the nut, after the correction is finished, welding the back plate and a base, and dismantling the back plate correction tool and the bolt; welding the bolt at the deformation zone of a side plate of the guiding, installing a side plate correction tool inside the guiding box, the bolt penetrates through the side plate correction tool and is connected with a nut, and carrying out correction on the side plate of the guiding box by screwing the nut, after the correction is finished, welding the side plate, the back plate and the base, and dismantling the side plate correction tool and the bolt. According to the processing method for repairing the blade tip mechanism of the wind turbine generator set, correction and welding to deformation and open weld of the guiding box of vane blade tip braking mechanism of a fixing blade wind turbine generator set are carried out, and spare parts do not need to be replaced to solve stoppage of the blade tip braking mechanism. According to the process method for repairing the blade tip mechanism of the wind turbine generator set, the technology is simple, and maintenance cost is low.
Description
Technical field
The present invention relates to the wind power technology field, particularly relate to a kind of process of repairing wind-powered electricity generation unit blade tip mechanism.
Background technology
Orientating box is as an important component part of deciding oar wind power generation unit blade blade tip brake system, its effect is the linearity that guarantees blade tip and blade body, in the process of blade tip folding and unfolding, play effect to the fairlead location, and control the scope of activities of blade tip fairlead in the process of rotation, thereby reach the purpose of folding and unfolding blade tip.
In the process of blade tip folding and unfolding rotation, fairlead is fixed, the axis of guide is connected with hydraulic jack by the blade tip steel wire rope, hydraulic jack is built the relative fairlead motion of the axis of guide when pressing with pressure release, and be to cooperate the rotation that reaches whole blade tip by helical teeth between the two, orientating box need overcome the lateral resistance of blade tip in the folding and unfolding process in the process of blade tip rotation, guarantees that orientating box has enough intensity and overcomes this resistance.
Existing orientating box commonly used is the rectangular box that is spliced by three thick corrosion resistant plates of 4mm, orientating box is welded on the base at two ends up and down, base is fixed on the blade body case web, and there is the gap between three corrosion resistant plate back side and the blade body case web, so the lateral resistance of blade tip in the folding and unfolding process all is to be born by three thick corrosion resistant plates of 4mm, in long operation of blade and folding and unfolding process, orientating box is easy to the situation that fatigue deformation occurs and snap, in case there is this kind situation to take place, orientation angle in the blade tip folding and unfolding process just can't guarantee, thereby blade tip occurs and receive phenomenon uneven and dislocation, influence the vibration of unit generation amount and unit, more close orientating box and then obviously have the cost height, the problem that maintenance difficulties is big.
This shows, how to found a kind of process, reinforcing is proofreaied and correct, welds and filled to the orientating box that has snapped, or the orientating box that does not snap welded and fills reinforcing again, snap the uneven risk of blade tip receipts thereby reduce orientating box, do not need to change spare part simultaneously and just can solve blade tip braking mechanism fault, avoid secondary to snap, solve wind-powered electricity generation unit generation amount loss that the braking mechanism fault brings and to the influence of unit vibration, real one of the important research and development target in this area that belongs to.
Summary of the invention
The purpose of this invention is to provide a kind of process of repairing wind-powered electricity generation unit blade tip mechanism, make it not need to change spare part and just can solve blade tip braking mechanism obstacle, the situation of avoiding blade the orientating box distortion in running, to occur or snap, loss of wind-powered electricity generation unit generation amount and unit vibration that solution brings because of blade tip braking mechanism obstacle, thus overcome the prior art deficiency.
For solving the problems of the technologies described above, a kind of process of repairing wind-powered electricity generation unit blade tip mechanism of the present invention may further comprise the steps: the device of A, dismounting blade tip and orientating box inside; B, at the backboard deformed area of orientating box weld bolt, the backboard correcting tool is installed at the orientating box edge, described bolt passes backboard correcting tool and attaching nut, screwing nut proofreaies and correct the orientating box backboard of distortion, welding backboard and base after correction is finished, and remove backboard correcting tool and bolt; C, at the side plate deformed area of orientating box weld bolt, the side plate correcting tool is installed in orientating box, and this bolt passes side plate correcting tool and attaching nut, screws nut the orientating box side plate is proofreaied and correct, welding side plate, backboard and base are finished in correction, and remove side plate correcting tool and bolt.
As a further improvement on the present invention, also comprise the step of being polished and clear up in welding region and orientating box inside after the described step C.
Also comprise assembling blade tip and each parts at last, and carry out the step of folding and unfolding test.
Described backboard correcting tool is the rectangular plate shape member that offers an above bolt hole.
Described side plate correcting tool is the L shaped member that offers an above bolt hole.
Also be included in the step of interstitital texture glue between the backboard of orientating box and the blade case web after the described step C.
After adopting such design, the present invention has following useful technique effect compared with the prior art:
1, the present invention snaps and proofreaies and correct and weld deciding blade wind power generation unit blade tip braking mechanism orientating box distortion, does not need to change spare part and just can solve blade tip braking mechanism fault, and its technology is simple, and maintenance cost is low;
2, the present invention fills the back side with structure glue the orientating box after welding, make it to become as a whole, strengthened the intensity of orientating box, avoid occurring secondary and snap with blade case web, the blade tip braking mechanism fault of utilizing this method to repair is not found the situation that secondary snaps;
3, the invention solves owing to the blade tip braking mechanism fault that causes is snapped in blade tip braking mechanism orientating box distortion the wind-powered electricity generation unit generation amount that causes loss, and the influence that unit vibration is produced.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Above-mentioned only is the general introduction of technical solution of the present invention, and for can clearer understanding the present invention, the present invention is described in further detail below in conjunction with accompanying drawing and the specific embodiment.
Fig. 1 uses orientating box structural representation of the present invention.
Fig. 2 uses the schematic diagram that the present invention repairs the orientating box backboard.
Fig. 3 uses the schematic diagram that the present invention repairs the orientating box side plate.
The specific embodiment
The present invention is by the orientating box that is out of shape or snap is proofreaied and correct and welded, then the orientating box back side being filled makes orientating box become as a whole with the case web, thereby reach the purpose of repairing and strengthening orientating box, the situation of avoiding blade the orientating box distortion in running, to occur or snap.
See also shown in Figure 1ly, existing common blade tip brake system orientating box comprises backboard 1, base 3 and pair of side plates 2 by the rectangular box that three thick corrosion resistant plates of 4mm are spliced.Carry out in the process of normal folding and unfolding at blade tip, orientating box reaches the purpose of locating blade tip by the positioning and guiding cover, and orientating box need overcome the resistance of blade tip in the process of rotation in this process.
The process concrete steps that the present invention repairs wind-powered electricity generation unit blade tip mechanism are as follows:
1, removes blade tip and orientating box inner part, at first load onto the elevator that hangs blade tip at root of blade, then the steel wire rope of elevator is connected with the blade tip steel wire rope, remove blade tip, tripping spring, fairlead and cushion pad then, and with elevator the blade tip steel wire rope is recovered in the blade shell, orientating box shown in Figure 1 is presented in the visual field fully.
2, the orientating box of distortion is proofreaied and correct.Please cooperate consult shown in Figure 2, it is to weld a bolt 12 by the deformed region at backboard 1 that the backboard of orientating box is proofreaied and correct, 4 place's stationary backplate correcting tools 11 at the orientating box edge afterwards, with orientating box edge 4 is datum level, the degree of depth with the vernier caliper measurement orientating box, screw the nut 13 on the bolt 12 then, this zone of explanation is calibrated after orientating box backboard 1 touches slide measure, weld the junction of backboard 1 and base 3 then herein, so analogize, proofread and correct and weld to proofread and correct at backboard 1 different deformed region and finish, and remove all bolts 12 and backboard correcting tool 11 until whole back plate.
3, please cooperate consult shown in Figure 3, it is to weld a bolt 22 by the deformed region at side plate 2 that the orientating box biside plate is proofreaied and correct, bolt 22 passes side plate correcting tool 21 and fixing with nut 23, comparison by fairlead, adjust the nut 23 on the bolt 22, and with the gap between clearance gauge measurement orientating box and the fairlead, when the gap between orientating box and the fairlead is 0.5mm, weld in the side plate 2 and the junction of backboard 1 and base 3, make orientating box recover the shape of cuboid.After correction is finished, remove all side plate correcting tools 21 and bolt 22.
Side plate correcting tool 21 involved in the present invention can adopt L shaped member as shown in Figure 3, and offers an above bolt hole on this member.The two ends of side plate correcting tool 21 offset with side plate 2 and base 3 respectively, or fix by modes such as welding, be spirally connected.
4, polish and clear up with angle grinding machine and straight grinder welding region and orientating box are inner, to guarantee not influence the operation of fairlead in orientating box after the orientating box welding, the gap with clearance gauge measurement fairlead and left side plate 2 during polishing is 0.5mm.In addition, fill with structure glue at backboard 1 rear of orientating box that also can be after welding, makes it to become as a whole with blade case web.
5, last, assembling blade tip and each parts, and carry out the folding and unfolding test.
The above; it only is preferred embodiment of the present invention; be not that the present invention is done any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection scope of the present invention.
Claims (6)
1. process of repairing wind-powered electricity generation unit blade tip mechanism is characterized in that may further comprise the steps:
The device of A, dismounting blade tip and orientating box inside;
B, at the backboard deformed area of orientating box weld bolt, the backboard correcting tool is installed at the orientating box edge, described bolt passes backboard correcting tool and attaching nut, screwing nut proofreaies and correct the orientating box backboard of distortion, welding backboard and base after correction is finished, and remove backboard correcting tool and bolt;
C, at the side plate deformed area of orientating box weld bolt, the side plate correcting tool is installed in orientating box, and this bolt passes side plate correcting tool and attaching nut, screws nut the orientating box side plate is proofreaied and correct, welding side plate, backboard and base after correction is finished, and remove side plate correcting tool and bolt.
2. the process of reparation wind-powered electricity generation unit blade tip according to claim 1 mechanism is characterized in that: also comprise the step of being polished and clear up in welding region and orientating box inside after the described step C.
3. the process of reparation wind-powered electricity generation unit blade tip according to claim 1 mechanism is characterized in that also comprising at last assembling blade tip and each parts, and carries out the step of folding and unfolding test.
4. the process of reparation wind-powered electricity generation unit blade tip according to claim 1 mechanism is characterized in that described backboard correcting tool is the rectangular plate shape member that offers an above bolt hole.
5. the process of reparation wind-powered electricity generation unit blade tip according to claim 1 mechanism is characterized in that described side plate correcting tool is the L shaped member that offers an above bolt hole.
6. according to the process of each described reparation wind-powered electricity generation unit blade tip mechanism among the claim 1-5, it is characterized in that also being included in after the described step C step of interstitital texture glue between the backboard of orientating box and the blade case web.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310155652.8A CN103212939B (en) | 2013-04-28 | 2013-04-28 | A kind of process of repairing Wind turbines blade tip mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310155652.8A CN103212939B (en) | 2013-04-28 | 2013-04-28 | A kind of process of repairing Wind turbines blade tip mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN103212939A true CN103212939A (en) | 2013-07-24 |
| CN103212939B CN103212939B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310155652.8A Active CN103212939B (en) | 2013-04-28 | 2013-04-28 | A kind of process of repairing Wind turbines blade tip mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074173A (en) * | 2020-01-03 | 2021-07-06 | 中核建中核燃料元件有限公司 | Butt-jacking adjusting mechanism of helium leak detection pre-packing box feeding device |
| CN116197602A (en) * | 2023-04-27 | 2023-06-02 | 山西天宝集团有限公司 | Mechanical rolling device and method for correcting flatness of wind power T-shaped flange |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4878371A (en) * | 1984-12-31 | 1989-11-07 | Hull Robert W | Realignment tool for aperture mating surface |
| CN2564973Y (en) * | 2002-09-17 | 2003-08-06 | 盛伟 | Sealer for rotary air preheater |
| KR100673489B1 (en) * | 2006-10-16 | 2007-01-25 | (주)원건축사사무소 | Electric terminal box structure for apartment house |
| CN201735643U (en) * | 2010-06-30 | 2011-02-09 | 中国一冶集团有限公司 | Dent correction device for closed container |
| CN102050410A (en) * | 2009-11-06 | 2011-05-11 | 徐州重型机械有限公司 | Two-stage conveyor system, telescopic box type arm support and aerial working engineering machinery |
-
2013
- 2013-04-28 CN CN201310155652.8A patent/CN103212939B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4878371A (en) * | 1984-12-31 | 1989-11-07 | Hull Robert W | Realignment tool for aperture mating surface |
| CN2564973Y (en) * | 2002-09-17 | 2003-08-06 | 盛伟 | Sealer for rotary air preheater |
| KR100673489B1 (en) * | 2006-10-16 | 2007-01-25 | (주)원건축사사무소 | Electric terminal box structure for apartment house |
| CN102050410A (en) * | 2009-11-06 | 2011-05-11 | 徐州重型机械有限公司 | Two-stage conveyor system, telescopic box type arm support and aerial working engineering machinery |
| CN201735643U (en) * | 2010-06-30 | 2011-02-09 | 中国一冶集团有限公司 | Dent correction device for closed container |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074173A (en) * | 2020-01-03 | 2021-07-06 | 中核建中核燃料元件有限公司 | Butt-jacking adjusting mechanism of helium leak detection pre-packing box feeding device |
| CN116197602A (en) * | 2023-04-27 | 2023-06-02 | 山西天宝集团有限公司 | Mechanical rolling device and method for correcting flatness of wind power T-shaped flange |
| CN116197602B (en) * | 2023-04-27 | 2023-07-07 | 山西天宝集团有限公司 | Mechanical rolling device and method for correcting flatness of wind power T-shaped flange |
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| CN103212939B (en) | 2015-08-19 |
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