CN201326523Y - Transmission gear of wind generating set - Google Patents
Transmission gear of wind generating set Download PDFInfo
- Publication number
- CN201326523Y CN201326523Y CNU2008202341068U CN200820234106U CN201326523Y CN 201326523 Y CN201326523 Y CN 201326523Y CN U2008202341068 U CNU2008202341068 U CN U2008202341068U CN 200820234106 U CN200820234106 U CN 200820234106U CN 201326523 Y CN201326523 Y CN 201326523Y
- Authority
- CN
- China
- Prior art keywords
- generating set
- gear
- mainframe
- coupling
- box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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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- Wind Motors (AREA)
Abstract
The utility model discloses a transmission gear of a wind generating set, which is arranged inside a main frame and used for connecting a hub and an electric generator that are positioned at the two ends of the main frame of the wind generating set; the transmission gear consists of a transition section used for connecting the hub, a shaft joint used for connecting the electric generator and a gear case used for connecting the transition section and the shaft joint, a double-row tapered roller bearing is used for connecting and supporting the transition section and the main frame, and a moment arm is used for connecting and supporting the gear case and the main frame. The utility model has compacter structure, reduces the total length and weight of a main shaft and a main bearing of the existing wind generating set, and has the advantages of reducing the weight and cost.
Description
Technical field
The utility model is about wind power generating set, more particularly, and about a kind of transmission device of wind power generating set.
Background technique
Transmission device is the critical component of Large-scale Wind Turbines, the transmission device of Large-scale Wind Turbines adopts the transmission scheme of flange plate, main shaft, gear-box and generator mostly at present, and main shaft mostly adopts two main bearings to support, promptly a main bearing respectively is set at the two ends of main shaft, and the distance between two main bearings is greater than the distance between front main bearing and the wheel hub usually, can reduce the bearing load that a moment of flexure is brought like this.
Main bearing can be realized two functions respectively in the installation of main shaft front end and back end:
1, gear-box hangs over the main shaft back segment, is connected the outside of rear min bearing, bears driving torque by torque arm.
2, the flange plate of the as close as possible connection wheel hub of front main bearing, the gravity torque minimum that the cantilever quality is formed.
But this structural type exists the drive train size big, and transmission part is heavy, the cost height, and two main bearings need dispose independent lubrication system, the problem that maintenance workload is big.
The model utility content
The purpose of this utility model is to provide a kind of rational in infrastructure, in light weight, low cost of manufacture, wind power generating set transmission device that reliability is high.
The wind power generating set transmission device places mainframe inside in the utility model, be used to connect wheel hub and the generator that wind power generating set is positioned at the mainframe two ends, described transmission device by the changeover portion that is used to connect described wheel hub, the gear-box that is used to connect the coupling of described generator and is used to connect described changeover portion and coupling forms, be connected, support by a double-row conical bearing between described changeover portion and the described mainframe, be connected, support by moment arm between described gear-box and the described mainframe.
Described double-row conical bearing include the inner ring that is connected with described changeover portion outer surface interference fit, with described mainframe through outer ring that bolt, nut are fixedlyed connected and place and be a plurality of tapered rollers that biserial is symmetrically distributed between described inner ring and the outer ring, on the apparent surface of described inner ring and described outer ring, be formed with the indent of mutual coupling and the conical surface of evagination.
Described coupling is an elastic coupling flexible coupling.
One end of described changeover portion is connected with described wheel hub through bolt, nut, and the other end is connected with the input shaft of described gear-box through bolt, nut.
The wind power generating set transmission device has structure compactness more in the utility model, has reduced the total length and the weight of main shaft and main bearing, has weight reduction, the advantage that cost reduces.
Description of drawings
Fig. 1 is the structural representation of transmission device in the utility model;
Fig. 2 is the enlarged diagram of A part among Fig. 1.
Embodiment
The specific embodiment of the utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the transmission device of wind power generating set placed mainframe 4 inside during this practical machine was novel, was used to connect wheel hub 1 and the generator 7 that wind power generating set is positioned at mainframe 4 two ends.This transmission device includes changeover portion 2, gear-box 5 and coupling 6, and wherein gear-box 5 includes casing and places input shaft, output shaft and the speed change gear of box house.
Double-row conical bearing 3 include the inner ring 30 that is connected with changeover portion 2 outer surface interference fit, with mainframe 4 through outer ring 31 that bolt, nut are fixedlyed connected and place inner ring 30 and outer ring 31 between be a plurality of tapered rollers 32 that biserial is symmetrically distributed, on the apparent surface of inner ring 30 and outer ring 31, be formed with the indent of mutual coupling and the conical surface 33,34 of evagination, as shown in Figure 2.Utilize this double-row conical bearing 3 that the most of shearing load that passes over from blade wheel hub 1 is delivered on the mainframe 4 by this double-row conical bearing 3, this double-row conical bearing 3 can bear bigger radial force and axial force load simultaneously, make the driving moment that drives wheel hub 1 and gear-box 5 runnings not be subjected to the influence of double-row conical bearing 3, directly the speed end (output shaft and coupling) by gear-box 5 drives generator 7 runnings.
Gear-box 5 is fixed on the mainframe 4 through moment arm 8, realizes the support to gear-box 5, and the output shaft of gear-box 5 is connected with generator 7 by coupling 6, and generator 7 is connected on the generator support by the elastic support (not shown).Gear-box 5 in the utility model supports by moment arm 8, can provide gear-box 5 bigger shear displacemant, make the shearing stress centrostigma be positioned at double-row conical bearing 3, rather than on the joint of moment arm 8 and the gear-box 5, thereby guarantee that gear-box 5 inner main axis keep stable on sense of rotation.
Coupling 6 is an elastic coupling flexible coupling, can be delivered to the running torque on the gear-box 5 on the generator 7, can eliminate the shearing force that misplaces and produce because of axially simultaneously.
Because coupling, gear-box, mainframe, wheel hub and generator are prior art, therefore explanation no longer separately.
In sum, transmission gear of wind generating set has the following advantages in the utility model:
1, only adopted a double-row conical bearing as supporting mechanism, made between wheel hub and the gear-box Distance shortens greatly, has reduced simultaneously total length and the weight of main shaft and base bearing in the existing wind power generating set, The length of whole transmission device is also shortened greatly, and weight also alleviates greatly, at the wind-power electricity generation of equal-wattage During machine is given, have the compacter practicality of structure, in light weight, and the lower advantage of cost.
2, the most of shear-type load from the transmission of blade wheel hub can be delivered to main frame by double-row conical bearing On the frame, only driving torque is delivered to the power shaft of gear-box, thereby can protects gear-box, make it to avoid Too high load has effectively prolonged life-span of gear-box.
Claims (4)
1, a kind of wind power generating set transmission device, place mainframe inside, be used to connect wheel hub and the generator that wind power generating set is positioned at the mainframe two ends, it is characterized in that, described transmission device by the changeover portion that is used to connect described wheel hub, the gear-box that is used to connect the coupling of described generator and is used to connect described changeover portion and coupling forms, be connected, support by a double-row conical bearing between described changeover portion and the described mainframe, be connected, support by moment arm between described gear-box and the described mainframe.
2, wind power generating set transmission device according to claim 1, it is characterized in that, described double-row conical bearing include the inner ring that is connected with described changeover portion outer surface interference fit, with described mainframe through outer ring that bolt, nut are fixedlyed connected and place and be a plurality of tapered rollers that biserial is symmetrically distributed between described inner ring and the outer ring, on the apparent surface of described inner ring and described outer ring, be formed with the indent of mutual coupling and the conical surface of evagination.
3, wind power generating set transmission device according to claim 1 is characterized in that, described coupling is an elastic coupling flexible coupling.
4, wind power generating set transmission device according to claim 1 is characterized in that, an end of described changeover portion is connected with described wheel hub through bolt, nut, and the other end is connected with the input shaft of described gear-box through bolt, nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202341068U CN201326523Y (en) | 2008-12-26 | 2008-12-26 | Transmission gear of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202341068U CN201326523Y (en) | 2008-12-26 | 2008-12-26 | Transmission gear of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201326523Y true CN201326523Y (en) | 2009-10-14 |
Family
ID=41178496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202341068U Expired - Lifetime CN201326523Y (en) | 2008-12-26 | 2008-12-26 | Transmission gear of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201326523Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011712A (en) * | 2010-12-07 | 2011-04-13 | 沈阳远大机电装备有限公司 | Flexible connection transmission mechanism of wind generating set |
| EP2418397A1 (en) * | 2010-08-11 | 2012-02-15 | General Electric Company | Gearbox support system |
| CN105673327A (en) * | 2014-11-21 | 2016-06-15 | 北车风电有限公司 | Wind driven generator set and wind driven generator |
-
2008
- 2008-12-26 CN CNU2008202341068U patent/CN201326523Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2418397A1 (en) * | 2010-08-11 | 2012-02-15 | General Electric Company | Gearbox support system |
| CN102011712A (en) * | 2010-12-07 | 2011-04-13 | 沈阳远大机电装备有限公司 | Flexible connection transmission mechanism of wind generating set |
| CN105673327A (en) * | 2014-11-21 | 2016-06-15 | 北车风电有限公司 | Wind driven generator set and wind driven generator |
| CN105673327B (en) * | 2014-11-21 | 2019-05-28 | 山东中车风电有限公司 | Wind power generating set and wind-driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SINOVEL WIND GROUP CO., LTD. I Free format text: FORMER NAME: HUARUI WIND ELECTRICITY TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 19 floor, building 59, Zhongguancun Avenue, Beijing, Haidian District, 100872 Patentee after: Sinovel Polytron Technologies Inc Address before: 19 floor, building 59, Zhongguancun Avenue, Beijing, Haidian District, 100872 Patentee before: Sinovel Wind Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: SINOVEL WIND GROUP CO., LTD. Free format text: FORMER NAME: SINOVEL WIND CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 100872, room 7, building 59, 705 Zhongguancun street, Haidian District, Beijing Patentee after: Sinovel Wind Group Co., Ltd. Address before: 100872, 19 floor, building 59, Zhongguancun Avenue, Beijing, Haidian District Patentee before: Sinovel Polytron Technologies Inc |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091014 |
|
| CX01 | Expiry of patent term |