CN101649816A - Wind-power generating yaw speed reducer - Google Patents
Wind-power generating yaw speed reducer Download PDFInfo
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- CN101649816A CN101649816A CN200910034525A CN200910034525A CN101649816A CN 101649816 A CN101649816 A CN 101649816A CN 200910034525 A CN200910034525 A CN 200910034525A CN 200910034525 A CN200910034525 A CN 200910034525A CN 101649816 A CN101649816 A CN 101649816A
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- 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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Abstract
The invention relates to a yaw speed reducer of a wind power generator. Four-stage satellite transmission structures are arranged in a box and are connected with each other to be transmitted to an output gear shaft in sequence; a motor flange is connected to the upper end of the box; the output gear shaft is arranged in a support body through an upper bearing and a lower bearing and is sealed by an oil seal base; a first-stage internal gear ring is connected into the motor flange through bolts; a motor input connection sleeve is arranged in the motor flange through a bearing; the number of theinternal teeth of the motor input connection sleeve is the same as the number of the external teeth of a first-stage sun gear; and the internal teeth of the motor input connection sleeve and the external teeth of the first-stage sun gear have the same modulus and the same pressure angle of 20 degrees and are in mutual meshing transmission. The yaw speed reducer has compact structure, reasonable design, good uniform-loading effect, strong bearing and impact resistance capacity, good sealing performance and a uniformly-forced satellite gear meshed with the floating sun gear, is convenient to make and not easy to cause the environmental pollution and runs stably, thereby meeting the requirements of the clients.
Description
Technical field
The present invention relates to a kind of speed reducer, is a kind of yaw speed reducer that is applicable to wind-power electricity generation specifically.
Background technique
Wind-driven generator is the generator by the wind-driven power generator rotation, because the size and Orientation of wind-force is changeable, be the extremely strong energy of a kind of randomness, the impact force uncertain factor that wind energy produces is very high, in order to keep the steady running of wind power generating set, in wind power generating set, it is strong to dispose anti-impact force, the yaw speed reducer that reduction speed ratio is big, its effect be by drive the driftage gear ring adjust blower fan towards, to reach the effect that makes full use of wind resource.
The Yaw gearbox of wind-driven generator adopts multi-stage planetary gear to slow down mostly both at home and abroad at present, motor input connecting sleeve adopts the rigidity interference to be connected mostly with first order sun gear or spline connects, adopt motor input connecting sleeve to be connected with the interference of first order sun gear rigidity, its first order sun gear can't float, the planet wheel discontinuity that is engaged with causes first order planetary structure unbalance loading, and noise is big, first order sun gear serious wear, working life is low; Adopt motor input connecting sleeve to be connected with first order sun gear spline, in order to reduce volume, spline need be used Gear Shaping, and the requirement on machining accuracy height, production is difficult, manufacture cost is high; Adopt ball bearing mostly at the bearing that first order planet wheel is installed, bearing capacity is little, influences the equal loading capability of planetary structure; In addition, in the prior art ring gears at different levels can be used as casing a part of assembling or when making casing in casing one be processed to form, when one processed ring gear in casing, box weight increased, processing difficulties, waste material, unreasonable structure.
The driftage speed-change gear box is in erectility in wind-driven generator, adopts the oil drain plug on the casing to drain the oil, and when using under relatively poor environment, the fragile or rubber ring of screw thread easily lost efficacy and causes leakage of oil on the oil drain plug, caused environmental pollution; Only adopt outside framework oil seal between gearbox output shaft and casing, the axial sealability of output shaft is guaranteed, but the poor sealing performance on seal face, dust impurity easily enters in the casing, has a strong impact on bearing life.
Summary of the invention
In order to solve wind-power generating yaw speed reducer unreasonable structure in the prior art, when motor input connecting sleeve adopts the rigidity interference to be connected with first order sun gear, first order planet wheel unbalance stress, easily cause unbalance loading, noise is big, serious wear, working life is low, or when adopting spline to connect, Gear Shaping spline requirement on machining accuracy height, produce difficulty, the high deficiency of manufacture cost, the purpose of this invention is to provide a kind of compact structure, reasonable in design, being meshing with each other with first order sun gear external tooth by motor input connecting sleeve internal tooth is connected transmission, and the once-through of first order sun gear need not be processed by the secondary spline teeth, easy to make, cost of production is low, and first order planet wheel is stressed evenly, and the complete machine effect of load balancing mechanism is good, it is little to wear and tear, the wind-power generating yaw speed reducer of long service life.
The technical solution used in the present invention is: the wind driven generator yaw speed reducer, comprise casing, motor input connecting sleeve, sun gear, planet wheel, planet carrier, ring gear, output gear shaft, casing comprises motor flange, upper box, middle casing, support, oil sealing base, be provided with level Four Gear Planet Transmission structure in the casing, second level ring gear is connected between upper box and the middle casing through bolt, third level ring gear is in bolt is connected between casing and the support, first order planet carrier is connected with second level sun gear by spline, second level planet carrier is connected with third level sun gear by spline, third level planet carrier is connected with fourth stage sun gear by spline, and fourth stage planet carrier is connected with output gear shaft by spline; In support and through the oil sealing base sealing, its technical characteristics is that described first order ring gear is connected in the motor flange by bolt to output gear shaft by Bearing Installation, through Bearing Installation motor input connecting sleeve is arranged in the motor flange; Motor input connecting sleeve is identical through modulus with first order sun gear, the tooth number is identical, pressure angle is 20 ° interior external tooth engagement driving.
Be provided with two outside framework oil seals arranged side by side up and down between the two bearings on the described output gear shaft; Be provided with the end face seal oil sealing between described support and the oil sealing base.
Described support sidewall is provided with puts joint soon, puts joint soon between the upper bearing (metal) and outside framework oil seal on the output gear shaft.
It is 25 ° that the gear of described planetary structures at different levels all adopts pressure angle, and tip clearance coefficient is 0.4 profile of tooth;
Described planet carrier at different levels all adopts the double-walled monolithic construction; The bearing that is used to install planet wheel on the described first order planet carrier is a roller bearing, and the bearing that is used to install planet wheel on all the other third-level planetary framves is double needle bearing.
Described motor flange, second level ring gear, upper box, third level ring gear, middle casing, fourth stage ring gear, support junction surface each other are provided with O type circle.
After adopting above technological scheme, the beneficial effect that the present invention reaches is:
1, motor input connecting sleeve is identical with first order sun gear employing modulus, the tooth number is identical, and pressure angle is 20 ° interior external tooth engagement driving, and first order sun gear can float, the planet wheel that is engaged with is stressed evenly, effect of load balancing mechanism is good, and the wearing and tearing of first order sun gear are little, long service life; And the once-through of processing first order sun gear need not the processing of secondary spline teeth, shortens the process-cycle greatly, reduces production costs;
2, first order ring gear is connected in the motor flange by bolt, solve traditional ring gear and casing and be made into problems such as a body weight is big, processing difficulties, waste material, reduce the ring gear number that is installed in the casing, help reducing device height, weight, improve the device bulk strength, reduce production costs;
3, be provided with two outside framework oil seals arranged side by side up and down between the two bearings on the output gear shaft, be provided with the end face seal oil sealing between support and the oil sealing base, be under the vertical state at yaw speed reducer, end face seal cooperates outside framework oil seal, realize axial and radial seal, the sealability height has solved the oil leakage problem simultaneously, and can prevent that dust from entering influences bearing life.
4, the bearing that is used to install planet wheel on the first order planet carrier is a roller bearing, the bearing that is used to install planet wheel on all the other third-level planetary framves is double needle bearing, bearing takes up room little, and planet carriers at different levels all adopt the double-walled monolithic construction, and the load-carrying ability of planetary mechanisms at different levels improves; It is 25 ° that the gear of planetary structures at different levels all adopts pressure angle, tip clearance coefficient is 0.4 profile of tooth, the suffered load of planet wheels at different levels evenly distributes along facewidth direction, help improving the bearing capacity and the impact resistance of yaw speed reducer, the yaw speed reducer operation is more stable, vibration and noise are little, longer service life;
5, the support sidewall is provided with and puts joint soon, replaces the plug cock of draining the oil commonly used, when oil change more, is difficult for polluting speed change gear and peripheral device, reduces environmental pollution, compliance with environmental protection requirements; Motor flange, second level ring gear, upper box, third level ring gear, middle casing, fourth stage ring gear, support junction surface each other are provided with O type circle, have guaranteed the high sealing performance of speed change gear.
The present invention adopts that modulus is identical, the tooth number is identical, pressure angle is external tooth be connected with a joggle motor input connecting sleeve and the transmission of first order sun gear in 20 °, and stressed even with the planet wheel of floating solar wheel engagement, effect of load balancing mechanism is good, and compact structure, reasonable in design, easy to make, complete machine bearing capacity and strong shock resistance, stable, good seal performance is difficult for causing environmental pollution, meets customer need.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: motor flange 1, upper box 2, middle casing 3, support 4, first order ring gear 5, second level ring gear 6, third level ring gear 7, fourth stage ring gear 8, first order planet carrier 9, first order planet wheel 10, first order sun gear 11, second level planet carrier 12, second level planet wheel 13, second level sun gear 14, third level planet carrier 15, third level planet wheel 16, third level sun gear 17, fourth stage planet carrier 18, fourth stage planet wheel 19, fourth stage sun gear 20, motor input connecting sleeve 21, output gear shaft 22, outside framework oil seal 23, bearing 24, planet axis 25, O type circle 26 is put joint 27 soon, oil sealing base 28, lateral oil seal 29.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Shown in Figure 1, wind-power generating yaw speed reducer mainly comprises: motor flange 1, upper box 2, middle casing 3, support 4, level Four Gear Planet Transmission structure, input motor input connecting sleeve 21, output gear shaft 22, oil sealing base 28.Be provided with input motor input connecting sleeve 21 and first order ring gear 5 in the motor flange 1, first order ring gear 5 is in bolt is connected motor flange 1, be connected second level ring gear 6 through bolt between motor flange 1 and the upper box 2, be connected third level ring gear 7 through bolt between upper box 2 and the middle casing 3, be connected fourth stage ring gear 8 through bolt between middle casing 3 and the support 4; The internal tooth of input motor input connecting sleeve 21 is identical with the outer tooth module of first order sun gear 11, the tooth number is identical, pressure angle is 20 °, the connection that is meshing with each other of interior external tooth, first order planet carrier 9 is connected with second level sun gear 14 by spline, second level planet carrier 12 is connected with third level sun gear 17 by spline, third level planet carrier 15 is connected with fourth stage sun gear 20 by spline, fourth stage planet carrier 18 is connected with output gear shaft 22 by spline, output gear shaft 22 is installed in the support 4 and through oil sealing base 28 by bearing 24 and seals, oil sealing base 28 is provided with lateral oil seal 29 with the seal face of support 4, is provided with two outside framework oil seals 23 arranged side by side between the metal (upper 24; Support 4 sidewalls are provided with and put joint 27 soon, put joint 27 soon and are leaning between motor side bearing and the outside framework oil seal 23; Planet carriers at different levels all adopt the double-walled monolithic construction, it is 25 ° that the gear of planetary structures at different levels all adopts pressure angle, tip clearance coefficient is 0.4 profile of tooth, the bearing that is used to install planet wheel on the first order planet carrier is a roller bearing, and the bearing that is used to install planet wheel on all the other third-level planetary framves is double needle bearing; Motor flange, second level ring gear, upper box, third level ring gear, middle casing, fourth stage ring gear, support junction surface each other are provided with O type circle 26.
Before the use, evenly be arranged at the rotating disk periphery of wind power generator support to major general's three typhoon power generator group yaw speed reducers, all is furnished with actuating motor on three motor input connecting sleeves 21, the gear ring engagement that the support rotating disk of output gear shaft 22 and wind-driven generator all round is provided with.Wind direction changes during use, control circuit will start all actuating motors synchronously, actuating motor drives first order sun gear 11 by input connecting sleeve 21 and rotates, because 10 whiles and first order sun gear 11 of first order planet wheel, 5 engagements of first order ring gear, first order planet wheel 10 is around 11 runnings of first order sun gear, running power is by first order planet carrier 9 transmission second level sun gears 14, and the like, transmission of power is to fourth stage planet carrier 18, fourth stage planet carrier 18 drives output gear shaft 22 by spline and rotates, output gear shaft 22 drives the dial rotation of aerogenerator machine base, make the blade of wind-driven generator adapt to the wind direction that constantly changes, guarantee that the blade of wind-driven generator is in the direction of facining the wind or departing from wind direction all the time.
Claims (6)
1, a kind of wind-power generating yaw speed reducer, comprise casing, sun gear, planet wheel, planet carrier, ring gear, output gear shaft (22), casing comprises motor flange (1), upper box (2), middle casing (3), support (4), oil sealing base (28), be provided with level Four Gear Planet Transmission structure in the casing, second level ring gear (6) is connected between motor flange and the upper box through bolt, third level ring gear (7) is connected between upper box and the middle casing through bolt, fourth stage ring gear (8) is in bolt is connected between casing and the support, first order planet carrier (10) is connected with second level sun gear (14) by spline, second level planet carrier (12) is connected with third level sun gear (17) by spline, third level planet carrier (15) is connected with fourth stage sun gear (20) by spline, and fourth stage planet carrier (18) is connected with output gear shaft by spline; Output gear shaft is installed in the support by two bearings (24) up and down and through the oil sealing base sealing, it is characterized in that: described first order ring gear (5) is connected in the motor flange by bolt; Through Bearing Installation motor input connecting sleeve (21) is arranged in the motor flange, the internal tooth of motor input connecting sleeve and the external tooth of first order sun gear (11) are engagement, and the internal tooth of motor input connecting sleeve is identical with the modulus of the external tooth of first order sun gear, the tooth number is identical, pressure angle is 20 °.
2, wind-power generating yaw speed reducer according to claim 1 is characterized in that: be provided with two outside framework oil seals arranged side by side (23) between the two bearings up and down (24) on the described output gear shaft (22); Be provided with lateral oil seal (29) between described support (4) and the oil sealing base (28).
3, wind-power generating yaw speed reducer according to claim 1 is characterized in that: described support (4) sidewall is provided with and puts joint (27) soon.
4, wind-power generating yaw speed reducer according to claim 1 is characterized in that: it is 25 ° that the gear of described planetary structures at different levels all adopts pressure angle, and tip clearance coefficient is 0.4 profile of tooth.
5, wind-power generating yaw speed reducer according to claim 1 is characterized in that: described planet carriers at different levels all adopt the double-walled monolithic construction; The bearing that is used to install planet wheel on the described first order planet carrier is a roller bearing, and the bearing that is used to install planet wheel on all the other third-level planetary framves is double needle bearing.
6, wind-power generating yaw speed reducer according to claim 1 is characterized in that: described motor flange (1), second level ring gear (6), upper box (2), third level ring gear (7), middle casing (3), fourth stage ring gear (8), support (4) junction surface each other are provided with O type circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910034525A CN101649816A (en) | 2009-09-01 | 2009-09-01 | Wind-power generating yaw speed reducer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910034525A CN101649816A (en) | 2009-09-01 | 2009-09-01 | Wind-power generating yaw speed reducer |
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| Publication Number | Publication Date |
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| CN101649816A true CN101649816A (en) | 2010-02-17 |
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| CN200910034525A Pending CN101649816A (en) | 2009-09-01 | 2009-09-01 | Wind-power generating yaw speed reducer |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813071A (en) * | 2010-05-01 | 2010-08-25 | 吴声震 | Wind power generation three-piece double-cycloid variable-pitch speed reducer |
| CN102691793A (en) * | 2012-06-05 | 2012-09-26 | 横店集团联宜电机有限公司 | Shaft gear sealing structure |
| CN103791035A (en) * | 2012-10-30 | 2014-05-14 | 吴小杰 | Wind power generation variable-pitch gear box with bearings lubricated by grease |
| CN106151475A (en) * | 2016-08-15 | 2016-11-23 | 江苏泰隆减速机股份有限公司 | Integration wind-power electricity generation reductor |
| CN106224450A (en) * | 2016-07-20 | 2016-12-14 | 湘潭大学 | A kind of wind power yawing driving means containing Harmonic Gears |
| CN106969099A (en) * | 2017-05-08 | 2017-07-21 | 泰星减速机股份有限公司 | A kind of vertical planetary speed reducer |
| CN107882925A (en) * | 2017-12-20 | 2018-04-06 | 江苏沃得农业机械有限公司 | Front drive axle of tractor deceleration transmission system |
| CN110864081A (en) * | 2019-12-24 | 2020-03-06 | 沃德传动（天津）股份有限公司 | Novel compact tensioning speed reducer |
| CN112443454A (en) * | 2019-08-28 | 2021-03-05 | 北京金风科创风电设备有限公司 | Yaw control method, system and device of wind generating set |
| CN114380225A (en) * | 2021-12-29 | 2022-04-22 | 江苏汇智高端工程机械创新中心有限公司 | Compact hoist speed reducer |
-
2009
- 2009-09-01 CN CN200910034525A patent/CN101649816A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813071A (en) * | 2010-05-01 | 2010-08-25 | 吴声震 | Wind power generation three-piece double-cycloid variable-pitch speed reducer |
| CN102691793A (en) * | 2012-06-05 | 2012-09-26 | 横店集团联宜电机有限公司 | Shaft gear sealing structure |
| CN102691793B (en) * | 2012-06-05 | 2015-04-01 | 浙江联宜电机股份有限公司 | Shaft gear sealing structure |
| CN103791035A (en) * | 2012-10-30 | 2014-05-14 | 吴小杰 | Wind power generation variable-pitch gear box with bearings lubricated by grease |
| CN106224450A (en) * | 2016-07-20 | 2016-12-14 | 湘潭大学 | A kind of wind power yawing driving means containing Harmonic Gears |
| CN106151475A (en) * | 2016-08-15 | 2016-11-23 | 江苏泰隆减速机股份有限公司 | Integration wind-power electricity generation reductor |
| CN106969099A (en) * | 2017-05-08 | 2017-07-21 | 泰星减速机股份有限公司 | A kind of vertical planetary speed reducer |
| CN107882925A (en) * | 2017-12-20 | 2018-04-06 | 江苏沃得农业机械有限公司 | Front drive axle of tractor deceleration transmission system |
| CN112443454A (en) * | 2019-08-28 | 2021-03-05 | 北京金风科创风电设备有限公司 | Yaw control method, system and device of wind generating set |
| CN112443454B (en) * | 2019-08-28 | 2023-03-14 | 北京金风科创风电设备有限公司 | Yaw control method, system and device of wind generating set |
| CN110864081A (en) * | 2019-12-24 | 2020-03-06 | 沃德传动（天津）股份有限公司 | Novel compact tensioning speed reducer |
| CN110864081B (en) * | 2019-12-24 | 2024-04-16 | 沃德传动（天津）股份有限公司 | Novel compact tensioning speed reducer |
| CN114380225A (en) * | 2021-12-29 | 2022-04-22 | 江苏汇智高端工程机械创新中心有限公司 | Compact hoist speed reducer |
| CN114380225B (en) * | 2021-12-29 | 2023-09-26 | 江苏汇智高端工程机械创新中心有限公司 | Compact winch speed reducer |
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Open date: 20100217 |