CN205117612U - Wind generating set's change oar drive arrangement - Google Patents
Wind generating set's change oar drive arrangement Download PDFInfo
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- CN205117612U CN205117612U CN201520858852.4U CN201520858852U CN205117612U CN 205117612 U CN205117612 U CN 205117612U CN 201520858852 U CN201520858852 U CN 201520858852U CN 205117612 U CN205117612 U CN 205117612U
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- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 abstract description 6
- 238000011217 control strategy Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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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 discloses a wind generating set's change oar drive arrangement, it includes the rotary actuator, becomes oar actuation transmission unit and becomes the oar bearing to become oar drive arrangement, become oar actuation transmission unit with the well spindle connection of rotary actuator and can along with the rotation of the center pin of rotary actuator and rotating, the bearing inner race that becomes the oar bearing with become oar actuation transmission unit change oar actuation transmission piece intermeshing and can along with become the rotation of oar actuation transmission unit and rotate. Compared with the prior art, the utility model discloses a wind generating set's change oar drive arrangement has combined original hydraulic control scheme and motor control strategy, has realized utilizing the rotary actuator direct drive to become the oar bearing and has realized the regulation of wind turbine blade pitch angle, has simplified the mechanical connection structure division for the mechanism is reliable more and the cost is cheaper.
Description
Technical field
The utility model relates to the technical field of wind power plant, more particularly, relates to a kind of wind generating set pitch control drive unit utilizing oscillating motor Direct driver pitch variable bearings to realize wind power generation blade pitch angle adjustment.
Background technique
Wind energy, as a kind of inexhaustible, nexhaustible clean green energy resource, is more and more subject to global attention.Pitch-controlled wind turbine, with its advantage such as capturing wind energy, stable output power to greatest extent, becomes the mainstream model of wind energy conversion system day by day.
In pitch-controlled wind-driven generator group, blade is not be fixed on wind wheel hub, but installs pitch governing loop additional on the basis of fixed pitch, and blade can be rotated around self axle.The power adjustments of wind energy conversion system not exclusively relies on the aerodynamic characteristic of blade, and it will rely on the attack angle of blade matched with blade to change to regulate.About time below rated wind speed, the angle of attack is in zero degree, now, the impact of the controlled link precision of blade angle, excursion is very little, can regard as and be equal to fixed pitch blower fan.Time more than rated wind speed, pulp distance varying mechanism plays a role, the adjusting vane angle of attack, ensures that the output power of motor is within allowed band.Comparatively fixed pitch wind turbine is low for the threshold wind velocity of pitch-controlled wind turbine, and during shutdown, the impact stress of gearing relaxes relatively.When blower fan normally works, the main power that adopts controls.And for the reaction of power adjustments speed, depend primarily on the sensitivity of blower fan pitch regulating system.
At present, the Wind turbine pulp distance varying mechanism come into operation in the world mainly adopts two kinds of technological schemes: hydraulic control scheme and motor control schemes.Wherein, hydraulic control is fast with its response frequency, moment of torsion is large, in variable pitch control, account for very large ratio with the advantage such as the same oil sources of braking system, but its structure is comparatively complicated; And Electric Machine Control structure is simple, and can also control separately blade, also the favor of many producers is subject to, but along with the increase of Wind turbine single-machine capacity, motor ratio of inertias is larger, therefore its dynamic response will be deteriorated, and if motor itself regulate blade continually continuously, by generation excessive heat load and make motor damage.
Model utility content
In order to solve problems of the prior art, the purpose of this utility model is to provide and a kind ofly can realizes becoming oar and the wind generating set pitch control drive unit controlling feather in conjunction with hydraulic control scheme and motor control schemes.
The utility model provides a kind of change oar drive unit of wind power generating set, described change oar drive unit comprises oscillating motor, becomes oar driving gear unit and pitch variable bearings, described change oar drives gear unit be connected with the central shaft of described oscillating motor and can rotate along with the rotation of the central shaft of described oscillating motor, and the bearing inner race of described pitch variable bearings and described change oar drive the change oar of gear unit to drive drive block to intermesh and can drive the rotation of gear unit along with described change oar and rotate.
According to an embodiment of the change oar drive unit of the utility model wind power generating set, described oscillating motor comprises cylinder body, central shaft, dividing plate and blade, described central shaft passes cylinder body and is positioned at the center of cylinder body, described dividing plate is fixedly installed between cylinder body and central shaft, described blade arranges on center shaft and is arranged on swingably between cylinder body and central shaft, described dividing plate and blade separated from each other and form first between described dividing plate and blade and hold oil pocket and second and hold oil pocket, described cylinder body have two oil inlet and outlets being oppositely arranged and described two oil inlet and outlets hold oil pocket and second respectively holds oil pocket be communicated with described first.
According to an embodiment of the change oar drive unit of the utility model wind power generating set, described dividing plate is sallop screen, and described blade is sector.
According to an embodiment of the change oar drive unit of the utility model wind power generating set, described change oar drives gear unit to comprise at least one piece of change oar and drives drive block and at least one connecting rod, described change oar drives drive block to be connected with the central shaft of described oscillating motor by described connecting rod, and described change oar drives drive block to have the first engaging tooth.
According to an embodiment of the change oar drive unit of the utility model wind power generating set, described pitch variable bearings comprises bearing inner race and bearing outer ring, described bearing outer ring is arranged regularly, described bearing inner race is arranged in described bearing outer ring rotationally, and the internal surface of described bearing inner race has the second engaging tooth be meshed with described first engaging tooth.
According to an embodiment of the change oar drive unit of the utility model wind power generating set, the bearing inner race of described pitch variable bearings is provided with multiple mounting hole, and blade to be fixed on the bearing inner race of described pitch variable bearings by described multiple mounting hole and can to rotate along with the rotation of the bearing inner race of described pitch variable bearings.
Compared with prior art, the change oar drive unit of wind power generating set of the present utility model combines original hydraulic control scheme and motor control schemes, achieve and utilize oscillating motor Direct driver pitch variable bearings to realize wind power generation blade pitch angle adjustment, simplify mechanical connecting structure part, make mechanism more reliable and cost is cheaper.
Accompanying drawing explanation
Fig. 1 shows the structural representation of the change oar drive unit of the wind power generating set according to the utility model exemplary embodiment.
Fig. 2 shows the structural representation of the oscillating motor according to the utility model exemplary embodiment.
Description of reference numerals:
10-oscillating motor, 11-cylinder body, 12-central shaft, 13-dividing plate, 14-blade, 15-first hold oil pocket, 16-second holds oil pocket, 17-oil inlet and outlet, 20-become oar and drive gear unit, 21-to become oar driving drive block, 211-first engaging tooth, 22-connecting rod, 30-pitch variable bearings, 31-bearing inner race, 311-mounting hole, 312-second engaging tooth, 32-bearing outer ring.
Embodiment
All features disclosed in this specification, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this specification (comprising any accessory claim, summary and accompanying drawing), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
Below the structure of the change oar drive unit to the utility model wind power generating set and principle are described in detail.It should be noted that, the utility model is mainly described the mechanical structure and principle that become oar drive unit, and the other system such as hydraulic control system and electrical system is not specifically described, those skilled in the art can know basic structure and the working principle of pitch-controlled wind-driven generator group.
Fig. 1 shows the structural representation of the change oar drive unit of the wind power generating set according to the utility model exemplary embodiment.As shown in Figure 1, according to exemplary embodiment of the present utility model, the change oar drive unit of described wind power generating set comprises oscillating motor 10, becomes oar driving gear unit 20 and pitch variable bearings 30.Wherein, described oscillating motor 10 provides the driving force becoming oar and drive, become oar drive gear unit 20 as the driving mechanism of transmission driving force and drive pitch variable bearings 30 to rotate, blade (not shown) to be arranged on pitch variable bearings 30 and to realize becoming oar under the drive of pitch variable bearings 30.
The structure of gear unit 20 and pitch variable bearings 30 is driven to be further described to described oscillating motor 10, change oar below.
According to exemplary embodiment of the present invention, becoming oar drives gear unit 20 be connected with the central shaft 12 of oscillating motor 10 and can rotate along with the rotation of the central shaft 12 of oscillating motor 10, also namely becomes oar and drives gear unit 20 in fact to link with central shaft 12.The bearing inner race 31 of pitch variable bearings 30 drives the change oar of gear unit 20 to drive drive block 21 to intermesh with change oar and can drive the rotation of gear unit 20 along with becoming oar and rotate, also namely in fact the bearing inner race 31 of pitch variable bearings 30 drives drive block 21 to link with change oar, make the blade be arranged on the bearing inner race 31 of pitch variable bearings 30 rotate thus, realize angle adjustment.
Fig. 2 shows the structural representation of the oscillating motor according to the utility model exemplary embodiment.As shown in Figure 2, in the present embodiment, oscillating motor 10 comprises cylinder body 11, central shaft 12, dividing plate 13 and blade 14, central shaft 12 passes cylinder body 11 and is positioned at the center of cylinder body 11, dividing plate 13 is fixedly installed between cylinder body 11 and central shaft 12, blade 14 to be arranged on central shaft 12 and to be arranged between cylinder body 11 and central shaft 12 swingably, dividing plate 13 and blade 14 separated from each other and form first between dividing plate 13 and blade 14 and hold oil pocket 15 and second and hold oil pocket 16, cylinder body 11 have two oil inlet and outlets 17 being oppositely arranged and described two oil inlet and outlets 17 hold oil pocket 15 and second respectively holds oil pocket 16 be communicated with first.Thus, coordinated by the fluid turnover of two oil inlet and outlets 17, realize the weave control to blade 14, the spinning movement of further control centre axle 12, the pendulum angle realizing central shaft 12 controls.In the present embodiment, dividing plate 13 is sallop screen, and blade 14 is sector, but the utility model is not limited thereto, as long as can guarantee that the opposing seal of oil pocket 15 and the second appearance oil pocket 16 is held in the normal swing and first of blade 14 in cylinder body 11.
As shown in Figure 1, in the present embodiment, become oar and drive gear unit 20 to comprise at least one piece of change oar driving drive block 21 and at least one connecting rod 22, become oar and drive drive block 21 to be connected with the central shaft 12 of oscillating motor 10 by connecting rod 22.Particularly, become oar and drive drive block 21 to be connected with the part of stretching out outside cylinder body 11 of central shaft 12 by connecting rod 22, central shaft 12 rotates and directly drives connecting rod 22 and become the rotation that oar drives drive block 21 under the swing effect of blade 14.Further, becoming oar drives drive block 21 to have the first engaging tooth 211.Further, as shown in Figure 1, become oar and drive the quantity of drive block 21 to be three pieces, the quantity of connecting rod 22 can be three, form comparatively stable engagement driving system thus to drive pitch variable bearings 30 reposefully, but the utility model is not limited thereto.
As shown in Figure 1, in the present embodiment, pitch variable bearings 30 comprises bearing inner race 31 and bearing outer ring 32, bearing outer ring 32 arranges realize the fixing of pitch variable bearings 30 and install regularly, bearing inner race 31 is arranged in bearing outer ring 32 rotationally, and the internal surface of bearing inner race 31 has the second engaging tooth 312 be meshed with the first engaging tooth 211.As shown in Figure 1, bearing inner race 31 can rotate concrete mesh form under becoming oar to drive the drive of gear unit 20 thus, then drives the rotation of the blade be arranged on bearing inner race 31, realizes the change oar of blade.
According to an embodiment of the present utility model, the bearing inner race 31 of pitch variable bearings 30 is provided with multiple mounting hole 311, and blade to be fixed on the bearing inner race 31 of pitch variable bearings 30 by described multiple mounting hole 311 and can to rotate along with the rotation of the bearing inner race 31 of pitch variable bearings 30.
Thus, when adopting the change oar drive unit of wind power generating set of the present utility model, when wind speed is more than rated wind speed, described change oar drive unit just can play a role and the adjusting vane angle of attack, thus ensures that the output power of motor is within allowed band.Wherein, oscillating motor 10 drives the rotation of gear unit 20 Direct driver pitch variable bearings 30 by becoming oar, and the adjustment of the blade angle of attack then mainly relies on the change of the angle of pitch variable bearings 30 to realize.
Compared with prior art, the change oar drive unit of wind power generating set of the present utility model combines original hydraulic control scheme and motor control schemes, achieve and utilize oscillating motor Direct driver pitch variable bearings to realize wind power generation blade pitch angle adjustment, simplify mechanical connecting structure part, make mechanism more reliable and cost is cheaper.
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (6)
1. the change oar drive unit of a wind power generating set, it is characterized in that, described change oar drive unit comprises oscillating motor, becomes oar driving gear unit and pitch variable bearings, described change oar drives gear unit be connected with the central shaft of described oscillating motor and can rotate along with the rotation of the central shaft of described oscillating motor, and the bearing inner race of described pitch variable bearings and described change oar drive the change oar of gear unit to drive drive block to intermesh and can drive the rotation of gear unit along with described change oar and rotate.
2. the change oar drive unit of wind power generating set according to claim 1, it is characterized in that, described oscillating motor comprises cylinder body, central shaft, dividing plate and blade, described central shaft passes cylinder body and is positioned at the center of cylinder body, described dividing plate is fixedly installed between cylinder body and central shaft, described blade arranges on center shaft and is arranged on swingably between cylinder body and central shaft, described dividing plate and blade separated from each other and form first between described dividing plate and blade and hold oil pocket and second and hold oil pocket, described cylinder body have two oil inlet and outlets being oppositely arranged and described two oil inlet and outlets hold oil pocket and second respectively holds oil pocket be communicated with described first.
3. the change oar drive unit of wind power generating set according to claim 2, is characterized in that, described dividing plate is sallop screen, and described blade is sector.
4. the change oar drive unit of wind power generating set according to claim 1, it is characterized in that, described change oar drives gear unit to comprise at least one piece of change oar and drives drive block and at least one connecting rod, described change oar drives drive block to be connected with the central shaft of described oscillating motor by described connecting rod, and described change oar drives drive block to have the first engaging tooth.
5. the change oar drive unit of wind power generating set according to claim 4, it is characterized in that, described pitch variable bearings comprises bearing inner race and bearing outer ring, described bearing outer ring is arranged regularly, described bearing inner race is arranged in described bearing outer ring rotationally, and the internal surface of described bearing inner race has the second engaging tooth be meshed with described first engaging tooth.
6. the change oar drive unit of wind power generating set according to claim 5, it is characterized in that, the bearing inner race of described pitch variable bearings is provided with multiple mounting hole, and blade to be fixed on the bearing inner race of described pitch variable bearings by described multiple mounting hole and can to rotate along with the rotation of the bearing inner race of described pitch variable bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520858852.4U CN205117612U (en) | 2015-10-30 | 2015-10-30 | Wind generating set's change oar drive arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520858852.4U CN205117612U (en) | 2015-10-30 | 2015-10-30 | Wind generating set's change oar drive arrangement |
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| Publication Number | Publication Date |
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| CN205117612U true CN205117612U (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520858852.4U Active CN205117612U (en) | 2015-10-30 | 2015-10-30 | Wind generating set's change oar drive arrangement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822500A (en) * | 2016-05-31 | 2016-08-03 | 张名轩 | Hydraulic variable pitch control device of high-altitude wind driven generator |
| CN114427513A (en) * | 2020-10-29 | 2022-05-03 | 北京金风科创风电设备有限公司 | Hydraulic pitch systems and wind turbines |
-
2015
- 2015-10-30 CN CN201520858852.4U patent/CN205117612U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822500A (en) * | 2016-05-31 | 2016-08-03 | 张名轩 | Hydraulic variable pitch control device of high-altitude wind driven generator |
| CN105822500B (en) * | 2016-05-31 | 2018-10-02 | 张名轩 | One kind being directed to High aititude wind-driven generator hydraulic Airscrew pitch variable control device |
| CN114427513A (en) * | 2020-10-29 | 2022-05-03 | 北京金风科创风电设备有限公司 | Hydraulic pitch systems and wind turbines |
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