CN201241791Y - Paddle-changeable gear reduction machine for wind power generation - Google Patents
Paddle-changeable gear reduction machine for wind power generation Download PDFInfo
- Publication number
- CN201241791Y CN201241791Y CNU2008200752910U CN200820075291U CN201241791Y CN 201241791 Y CN201241791 Y CN 201241791Y CN U2008200752910 U CNU2008200752910 U CN U2008200752910U CN 200820075291 U CN200820075291 U CN 200820075291U CN 201241791 Y CN201241791 Y CN 201241791Y
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- Prior art keywords
- gear
- planetary
- planetary gears
- wind
- planet
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- 230000009467 reduction Effects 0.000 title claims description 24
- 238000010248 power generation Methods 0.000 title 1
- 230000005611 electricity Effects 0.000 claims abstract description 15
- 230000007704 transition Effects 0.000 claims abstract description 8
- 230000008859 change Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 7
- 239000000969 carrier Substances 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 abstract description 10
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 2
- 210000003746 feather Anatomy 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/46—Systems consisting of a plurality of gear trains each with orbital gears, i.e. systems having three or more central gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The utility model relates to a variable propeller gear speed reducer for wind energy generation, which comprises a servo motor, a planetary speed reducer connected with the servo motor via a connecting disk, a base and an output gear shaft. The variable propeller gear speed reducer is characterized in that the planetary speed reducer comprises three stages of planetary gear mechanisms, wherein in each planetary gear mechanism stage, a sun gear is meshed with a planetary gear meshed with an inner tooth ring, a planetary frame is connected with the planetary wheel via a pin, and each two adjacent planetary gear mechanism are arranged with a transition connecting disk therebetween, the output shaft of the servo motor is connected with a first stage sun gear, the upper stage planetary frame and the lower stage planetary sun gear of the planetary speed reducer are connected via an inner spline, the third stage planetary frame is connected with an output gear shaft mounted in a base which outer circumference is provided with an external connecting disk, and the external connecting disk and the output gear shaft adopt eccentric structures. The utility model has the advantages of large installment adjusting range, uniform force, good seal performance and strong impact resistance, and can adjust the directions and angles of the impellers of the wind energy generator, and therefore, the wind energy generator can stably generate electricity under complex and variable wind force.
Description
Technical field
The utility model belongs to wind-power electricity generation and makes the field, particularly relates to a kind of change oar gear reduction unit that is used for wind-power electricity generation.
Background technique
Wind-driven generator is the generator by the wind-drive rotation.Because the size and Orientation of wind-force is changeable, its most tangible characteristics are complicated and changeable, are the extremely strong energy of a kind of randomness, and the uncertain factor of the impact force that wind energy produces is more.Therefore,, be necessary for its configuration variable pitch speed reducer that anti-impact force is strong, reduction speed ratio is big,, keep the steady running of wind-driven generator in order to the angle and direction of regulation and control wind-driven generator paddle in order to keep the stability of wind-driven generator.
At present, the domestic known variable pitch speed reducer that is used for wind-driven generator adopts multi-stage planetary gear speed reducer structure usually.Planet-gear speed reducer has the strong advantage of anti-impact force, be rigidly connected but adopt between planet carrier that existing planet-gear speed reducer is at different levels and the sun gear, the machining accuracy height of its structural requirement parts, and vibrations are bigger when unit operation, cause the planet wheel discontinuity, accelerate the planet wheel rate of wear like this, reduced the rotating accuracy of blade; Make that the wind power generating set impact resistance is poor, can't reach the purpose of steady running.Outer land on the support of existing in addition change oar gear reduction unit and output gear shaft adopt concentric structure, output gear shaft is when meshing with large gear ring, the back lash can only be adjusted by the sideshake that meshes between the gear, and adjustment range is little, and adjusts inconvenient.
Summary of the invention
The utility model provides a kind of stressed change oar gear reduction unit that is used for wind-power electricity generation even, stable and easy for installation for solving the technical problem that exists in the known technology.
The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of change oar gear reduction unit that is used for wind-power electricity generation, comprise: actuating motor, the planetary reduction gear that actuating motor connects by land, support and output gear shaft, it is characterized in that: described planetary reduction gear comprises the planetary gears that tertiary structure is identical, every grade of planetary gears includes sun gear, planet wheel, planet carrier and ring gear, output gear shaft, sun gears at different levels, planet wheels at different levels, planet carriers at different levels, ring gear concentrics at different levels, wherein sun gear meshes planet wheel, planet wheel engagement ring gear, planet carrier is connected with planet wheel by pin; Be equipped with the transition land between every grade of planetary gears, the transition land is connected with ring gear; The output shaft of described actuating motor is inserted in the sun gear of first order planetary gears, and in land, bearing is provided with oil sealing near the actuating motor side to this sun gear by Bearing Installation; The upper level planet carrier is connected by internal spline with the sun gear of next stage in the described planetary reduction gear; The ring gear of third level planetary gears connects support, and this grade planet carrier connects output gear shaft by spline, and in the support of output gear shaft by Bearing Installation land outside excircle is provided with, the outside of bearing is provided with oil sealing; Outer land that described support excircle is provided with and output gear shaft adopt eccentric structure.
The utility model can also adopt following technical measures:
One side of the planet wheel of described first order planetary gears is provided with a first order planet carrier.
The both sides of the planet wheel of described second level planetary gears all are arranged with planet carrier.
The both sides of the planet wheel of described third level planetary gears all are arranged with planet carrier.
The bearing of the sun gear of described support first order planetary gears is provided with double-deck oil sealing near the actuating motor side.
The outside of the bearing of described support output gear shaft is provided with double-deck oil sealing.
Advantage and the good effect that the utlity model has are: in order to dispose the change oar gear reduction unit that anti-impact force is strong, using scope is big to wind-power electricity generation, the utility model is connected by pin with planet carrier at every grade planet wheel, make and form the connection of floating between the gear mechanisms at different levels, planet wheel is stressed evenly like this, and planet carrier free floating in certain scope carries to reach all; The sun gear of every grade of planetary gears adopts spline to be connected with higher level's planet carrier, makes that installation is easy to adjust; Outer land that this outer frame excircle is provided with and output gear shaft adopt eccentric structure, so more help adjusting the back lash of the big internal gear of outer land and wind-power electricity generation group, thereby realize the feather adjustment, avoid the generating of wind power plant overburdening to damage unit.In order to guarantee blade when doing 360 ° of revolutions, lubricant oil is not revealed, and the utility model adopts the dual-oil seal structure; Therefore the utility model not only has characteristics simple in structure, that bearing capacity is strong, but also have that the adjustment range of installation is big, stressed evenly, good seal performance and the strong advantage of anti-impact force.The utility model and wind-driven generator configuration are used, and can realize the direction and the angle of wind power generator oar blade, make wind-driven generator under wind condition complicated and changeable, guarantee its steady running generating.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, actuating motor; 1-1, output shaft; 2, land; 3, planetary reduction gear; 3-1, bolt; 3a, first order planetary gears; 3a-1, sun gear; 3a-2, planet wheel; 3a-3, planet carrier; 3b, second level planetary gears; 3b-1, sun gear; 3b-2, planet wheel; 3b-3, planet carrier; 3c, third level planetary gears; 3c-1, sun gear; 3c-2, planet wheel; 3c-3, planet carrier; 3c-4, ring gear; 4, pin; 5, transition land, 6, bearing; 7, oil sealing; 8, bolt; 9, support; 9-1, outer land; 10, output gear shaft; 11, bearing.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, the utility model is embodiment comprise: actuating motor 1, actuating motor 1 connect planetary reduction gear 3 by land 2, planetary reduction gear 3 comprises three grades of identical planetary gears, every grade of planetary gears includes sun gear, planet wheel, planet carrier and ring gear, its engagement situation is an example with first order planetary gears 3a: sun gear 3a-1 engagement planet wheel 3a-2, planet wheel 3a-2 engagement ring gear 3a-4, and planet carrier 3a-3 is connected with planet wheel 3a-2 by pin 4; Second level planetary gears 3b and third level planetary gears 3c mesh in the same way as described above.The upper level planet carrier is connected transferring power with the sun gear of next stage by internal spline in planetary reduction gear 3; The sun gear 3b-1 that is second level planetary gears is connected by spline with the planet carrier 3a-3 of first order planetary gears, and the sun gear 3c-1 of third level planetary gears is connected by spline with the planet carrier 3b-3 of second level planetary gears.Increase the moment of torsion principle according to slowing down, be provided with a planet carrier 3a-3 in the planet wheel 3a-2 of first order planetary gears 3a one side, all be arranged with planet carrier at the planet wheel 3b-2 of second level planetary gears 3b and the planet wheel 3c-2 both sides of third level planetary gears 3c, to guarantee the bearing capacity of unit.Be equipped with transition land 5 between every group of planetary gears, transition land 5 is connected by bolt 3-1 with the next stage ring gear.The output shaft 1-1 of described actuating motor 1 is inserted in the sun gear 3a-1 of first order planetary gears 3a, and this sun gear 3a-1 is installed in the land 2 by bearing 6, and bearing 6 is being provided with double-deck oil sealing 7 near actuating motor 1 side.The ring gear 3c-4 of third level planetary gears 3c connects support 9 by bolt 8, the planet carrier 3c-3 of this grade connects output gear shaft 10 by spline, output gear shaft 10 is installed in the support that excircle is provided with outer land 9-1 by bearing 11, the outside of bearing 11 is provided with double-deck oil sealing, outer land 9-1 that support 9 excircles are provided with and output gear shaft 10 adopt eccentric structure, this off-centre more helps adjusting the back lash of the big internal gear of outer land and wind-power electricity generation group, closely realize the feather adjustment, avoid the generating of wind power plant overburdening to damage unit.
When assembling the utility model, guarantee concentric between the output shaft of actuating motor, planet wheel at different levels, sun gear at different levels, gear ring at different levels, the output gear shaft, the utility model is placed every propeller shank, make the output gear shaft 10 and the ring gear of propeller shank mesh; In the use, when wind-force changes, control circuit will start all actuating motor 1 in the utility model will be installed, actuating motor 1 rotates by driving output gear shaft 10 after slowing down, the ring gear that output gear shaft 10 drives propeller shank rotates, the ring gear of propeller shank changes the angle of blade, makes wind power generating set adapt to the wind-force that changes, and realizes the adjustment to blade.
Claims (6)
1. change oar gear reduction unit that is used for wind-power electricity generation, comprise: actuating motor, the planetary reduction gear that actuating motor connects by land, support and output gear shaft, it is characterized in that: described planetary reduction gear comprises the planetary gears that tertiary structure is identical, every grade of planetary gears includes sun gear, planet wheel, planet carrier and ring gear, output gear shaft, sun gears at different levels, planet wheels at different levels, planet carriers at different levels, ring gear concentrics at different levels, wherein sun gear meshes planet wheel, planet wheel engagement ring gear, planet carrier is connected with planet wheel by pin; Be equipped with the transition land between every grade of planetary gears, the transition land is connected with ring gear; The output shaft of described actuating motor is inserted in the sun gear of first order planetary gears, and in land, bearing is provided with oil sealing near the actuating motor side to this sun gear by Bearing Installation; The upper level planet carrier is connected by internal spline with the sun gear of next stage in the described planetary reduction gear; The ring gear of third level planetary gears connects support, and this grade planet carrier connects output gear shaft by spline, and in the support of output gear shaft by Bearing Installation land outside excircle is provided with, the outside of bearing is provided with oil sealing; Outer land that described support excircle is provided with and output gear shaft adopt eccentric structure.
2. the change oar gear reduction unit that is used for wind-power electricity generation according to claim 1, it is characterized in that: a side of the planet wheel of described first order planetary gears is provided with planet carrier.
3. the change oar gear reduction unit that is used for wind-power electricity generation according to claim 1, it is characterized in that: the both sides of the planet wheel of institute's second level planetary gears all are arranged with planet carrier.
4. the change oar gear reduction unit that is used for wind-power electricity generation according to claim 1, it is characterized in that: the both sides of the planet wheel of described third level planetary gears all are arranged with planet carrier.
5. the change oar gear reduction unit that is used for wind-power electricity generation according to claim 1 is characterized in that: the bearing of the sun gear of described support first order planetary gears is provided with double-deck oil sealing near the actuating motor side.
6. the change oar gear reduction unit that is used for wind-power electricity generation according to claim 1, it is characterized in that: the outside of the bearing of described support output gear shaft is provided with double-deck oil sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200752910U CN201241791Y (en) | 2008-07-11 | 2008-07-11 | Paddle-changeable gear reduction machine for wind power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200752910U CN201241791Y (en) | 2008-07-11 | 2008-07-11 | Paddle-changeable gear reduction machine for wind power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201241791Y true CN201241791Y (en) | 2009-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200752910U Expired - Fee Related CN201241791Y (en) | 2008-07-11 | 2008-07-11 | Paddle-changeable gear reduction machine for wind power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201241791Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878248A (en) * | 2012-10-24 | 2013-01-16 | 银川威力减速器有限公司 | High-power wind power generation variable-pitch speed reducer |
| CN103266988A (en) * | 2013-05-24 | 2013-08-28 | 北京金风科创风电设备有限公司 | Wind generating set and variable pitch driving system thereof |
| CN104482178A (en) * | 2014-12-26 | 2015-04-01 | 南京高速齿轮制造有限公司 | Sealing device between center shaft and gear box end cover |
| CN104500703A (en) * | 2014-12-26 | 2015-04-08 | 南京高速齿轮制造有限公司 | Output end of wind driven generator yawing and pitch-varying gear box |
| WO2016015935A1 (en) * | 2014-07-29 | 2016-02-04 | Zf Friedrichshafen Ag | Modular coupling of a wind turbine gearbox to a generator and method |
| CN112747084A (en) * | 2021-01-08 | 2021-05-04 | 银川威力传动技术股份有限公司 | Output structure of wind power variable pitch speed reducer |
| CN113008549A (en) * | 2021-04-12 | 2021-06-22 | 宁波大学 | Variable-size RV reducer planetary gear stress measuring device and method |
| CN114294376A (en) * | 2021-12-23 | 2022-04-08 | 银川威力传动技术股份有限公司 | Wind power yaw variable pitch drive input structure |
-
2008
- 2008-07-11 CN CNU2008200752910U patent/CN201241791Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878248A (en) * | 2012-10-24 | 2013-01-16 | 银川威力减速器有限公司 | High-power wind power generation variable-pitch speed reducer |
| CN103266988A (en) * | 2013-05-24 | 2013-08-28 | 北京金风科创风电设备有限公司 | Wind generating set and variable pitch driving system thereof |
| CN103266988B (en) * | 2013-05-24 | 2015-04-22 | 北京金风科创风电设备有限公司 | Wind generating set and variable pitch driving system thereof |
| WO2016015935A1 (en) * | 2014-07-29 | 2016-02-04 | Zf Friedrichshafen Ag | Modular coupling of a wind turbine gearbox to a generator and method |
| CN104482178A (en) * | 2014-12-26 | 2015-04-01 | 南京高速齿轮制造有限公司 | Sealing device between center shaft and gear box end cover |
| CN104500703A (en) * | 2014-12-26 | 2015-04-08 | 南京高速齿轮制造有限公司 | Output end of wind driven generator yawing and pitch-varying gear box |
| CN104500703B (en) * | 2014-12-26 | 2017-03-29 | 南京高速齿轮制造有限公司 | The outfan of wind driven generator yaw and variable propeller gearbox |
| CN112747084A (en) * | 2021-01-08 | 2021-05-04 | 银川威力传动技术股份有限公司 | Output structure of wind power variable pitch speed reducer |
| CN113008549A (en) * | 2021-04-12 | 2021-06-22 | 宁波大学 | Variable-size RV reducer planetary gear stress measuring device and method |
| CN114294376A (en) * | 2021-12-23 | 2022-04-08 | 银川威力传动技术股份有限公司 | Wind power yaw variable pitch drive input structure |
| CN114294376B (en) * | 2021-12-23 | 2024-07-02 | 银川威力传动技术股份有限公司 | Wind power yaw variable pitch drive input structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20120711 |