CN201884219U - Integral bearing block type wind driven generator low-speed shaft transmission system with double bearings - Google Patents
Integral bearing block type wind driven generator low-speed shaft transmission system with double bearings Download PDFInfo
- Publication number
- CN201884219U CN201884219U CN2010206600730U CN201020660073U CN201884219U CN 201884219 U CN201884219 U CN 201884219U CN 2010206600730 U CN2010206600730 U CN 2010206600730U CN 201020660073 U CN201020660073 U CN 201020660073U CN 201884219 U CN201884219 U CN 201884219U
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- China
- Prior art keywords
- bearing
- driven generator
- transmission system
- shaft transmission
- solid housing
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- 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 - Fee Related
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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)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to an integral bearing block type wind driven generator low-speed shaft transmission system with double bearings, which is simple in structure and convenient in use, can increase rigidity, reduces impact to a gearbox during operation of a wind wheel, minimizes failure rate of the gearbox, prolongs the service life and reduces maintenance cost. The integral bearing block type wind driven generator low-speed shaft transmission system comprises a spindle, the spindle is connected with the wind wheel and mounted on a bearing block, and a bearing I and a bearing II are respectively arranged at the front end and the rear end of the bearing block.
Description
Technical field
The utility model relates to a kind of duplex bearing solid housing formula wind-driven generator lower velocity shaft transmission system.
Background technique
At present, wind-driven generator lower velocity shaft transmission system is that wind energy transformation is become the electric energy bridge, wind-force affacts and drives the wind wheel rotation on the blade, wind wheel and lower velocity shaft transmission system are rigidly connected, and torque, moment of torsion, impact, axial force and the radial force brought by wind wheel can cause serious destruction to the precise part on the Transmitted chains.On the wind power generation field main spindle's, mainly contain two kinds of arrangements at present, the one, but bearing single shaft bearing formula, another kind is a duplex bearing split bearing support formula.
The existing radial deflection of the main shaft of wind-driven generator has axial dipole field again.In fact, the axial dipole field of main shaft is directly delivered to the input shaft of gear-box, as if the axial internal clearance of main shaft bearing not being controlled and special processing being done in the location of gear-box planet wheel, axial skew meeting produces adverse influence to planet carrier spring bearing in the gear-box.
The model utility content
The purpose of this utility model is exactly for addressing the above problem, provide a kind of simple in structure, easy to use, can increase transmission system rigidity, reduced wind wheel in the running to the impact of gear-box, the rate of fault of gear-box has been dropped to minimum, prolonged lifetime of system, reduced the duplex bearing solid housing formula wind-driven generator lower velocity shaft transmission system of maintenance cost.
For achieving the above object, the utility model adopts following technological scheme:
A kind of duplex bearing solid housing formula wind-driven generator lower velocity shaft transmission system, it comprises main shaft, and main shaft is connected with wind wheel, and main shaft is installed on the bearing support, and the front-end and back-end of described bearing support are respectively equipped with bearing I and bearing I I.
Described bearing I is a Biserial cylindrical roller bearing.
Described bearing I I is a double-row conical bearing.
Described bearing I and bearing I I are installed in the bearing support and are connected with frame, and frame is installed on the tower tube.
Described main shaft is terminal to be connected with gear-box.
Described spindle nose also is provided with the wind wheel lock collar.
Described bearing I front end is provided with bearing gland I.
Described bearing I I rear end is provided with bearing gland II.
Be provided with the spindle speed sensor in the described bearing support.
The utility model has adopted the structural type of duplex bearing solid housing on the wind driven generator principal shaft position, front end adopts Biserial cylindrical roller bearing, double-row conical bearing is adopted in the rear end, and with the spacer location, two bearings is encapsulated in the same bearing support between the two bearings inner ring.
The utility model main shaft adopts the duplex bearing supported design, simultaneously, bearing support adopts solid housing, two bearings are contained in a bearing support the inside, wind load is passed to below the tower tube by bearing support, mainframe, reduced the direct impact of wind load, greatly reduced the rate of fault of gear-box, improved the stability and the reliability of unit Transmitted chains gear-box.
Because the axial dipole field of main shaft depends on the rigidity of system and the inside play of rear end bearing.Use the double-row conical bearing of pretension at the main shaft tail end after, the axial dipole field of main shaft right-hand member ratio reduces very big when using selfaligning roller bearing.Reduce the risk that axial dipole field just reduces the axial compression gearbox input shaft.
The beneficial effects of the utility model are: adopt the double-row conical bearing of pretension can improve the rigidity of main shaft, thereby reduced the direct impact of wind load to gear-box, reduced the rate of fault of gear-box, improved the stability and the reliability of unit Transmitted chains.Pretension and the inside play of optimizing even can under the most extreme wind conditions, guarantee good system stability.
Description of drawings
Fig. 1 is a duplex bearing solid housing formula wind-driven generator layout chart;
Fig. 2 is duplex bearing solid housing formula low speed drive system structure figure;
Wherein, 1. main shaft, 2. wind wheel lock collar, 3. bearing gland I, 4. Biserial cylindrical roller bearing, 5. spindle speed sensor, 6. bearing support, 7. double-row conical bearing, 8. bearing gland II, 9. gear-box, 10. tower tube, 11. wind wheels, 12. frames.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Among Fig. 1 and Fig. 2, it comprises main shaft 1, and main shaft 1 is connected with wind wheel 11, and main shaft 1 is installed on the bearing support 6, and the front-end and back-end of described bearing support 6 are respectively equipped with bearing I and bearing I I.
Described bearing I is a Biserial cylindrical roller bearing 4.
Described bearing I I is a double-row conical bearing 7.
Described bearing I and bearing I I are installed in the bearing support 6 and are connected with frame 12, and frame 12 is installed on the tower tube 10.
Described main shaft 1 end is connected with gear-box 9.
Described main shaft 1 end also is provided with wind wheel lock collar 2.
Described bearing I front end is provided with bearing gland I.
Described bearing I I rear end is provided with bearing gland II 8.
Be provided with spindle speed sensor 5 in the described bearing support 6.
Wind wheel 11 becomes mechanical energy to pass to step-up gear 9 by main shaft 1 wind energy transformation, and then drives generator for electricity generation.Axial force of being brought by wind load in this process and impact are all born by the double-row conical bearing 7 of rear end, because double-row conical bearing 7 possesses the ability of axial force of bearing and impact, have so just improved the reliability of whole system.Realized the pretension of double-row conical bearing 7 by bearing support 6 and bearing gland II8, thereby double-row conical bearing 7 is that pure rolling has reduced the bearing roller slippage like this, has increased the life-span of bearing when operation.Adopt the arrangement of front end Biserial cylindrical roller bearing 4 and rear end double-row conical bearing 7, reduced axial dipole field, thus reduce bearing race generation fatigue damage risk, reduced false impression possibility, reduced the risk of axial force extruding gearbox input shaft.
What the utility model adopted is solid housing 6, guaranteeing under the bearing deployment scenarios that an end is fixed, an end floats, increased the loaded area of the axial force that double-row conical bearing 7 born, allowed axial force pass through bearing support 6 and frame 12, more effective being delivered on the tower tube 10.The length of main shaft has been shortened in the design of solid housing formula, has further increased the rigidity of Transmitted chains, has increased the compactedness of complete machine simultaneously.
Claims (9)
1. duplex bearing solid housing formula wind-driven generator lower velocity shaft transmission system, it comprises main shaft, and main shaft is connected with wind wheel, and main shaft is installed on the bearing support, it is characterized in that, and the front-end and back-end of described bearing support are respectively equipped with bearing I and bearing I I.
2. duplex bearing solid housing formula wind-driven generator lower velocity shaft transmission system as claimed in claim 1 is characterized in that described bearing I is a Biserial cylindrical roller bearing.
3. duplex bearing solid housing formula wind-driven generator lower velocity shaft transmission system as claimed in claim 1 is characterized in that described bearing I I is a double-row conical bearing.
4. as claim 1 or 2 or 3 described duplex bearing solid housing formula wind-driven generator lower velocity shaft transmission systems, it is characterized in that described bearing I all is connected with frame with bearing I I, frame is installed on the tower tube.
5. duplex bearing solid housing formula wind-driven generator lower velocity shaft transmission system as claimed in claim 1 is characterized in that, described main shaft is terminal to be connected with gear-box.
6. duplex bearing solid housing formula wind-driven generator lower velocity shaft transmission system as claimed in claim 1 is characterized in that described spindle nose also is provided with the wind wheel lock collar.
7. duplex bearing solid housing formula wind-driven generator lower velocity shaft transmission system as claimed in claim 4 is characterized in that described bearing I front end is provided with bearing gland I.
8. duplex bearing solid housing formula wind-driven generator lower velocity shaft transmission system as claimed in claim 1 is characterized in that described bearing I I rear end is provided with bearing gland II.
9. duplex bearing solid housing formula wind-driven generator lower velocity shaft transmission system as claimed in claim 1 is characterized in that, is provided with the spindle speed sensor in the described bearing support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206600730U CN201884219U (en) | 2010-12-15 | 2010-12-15 | Integral bearing block type wind driven generator low-speed shaft transmission system with double bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206600730U CN201884219U (en) | 2010-12-15 | 2010-12-15 | Integral bearing block type wind driven generator low-speed shaft transmission system with double bearings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884219U true CN201884219U (en) | 2011-06-29 |
Family
ID=44181758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206600730U Expired - Fee Related CN201884219U (en) | 2010-12-15 | 2010-12-15 | Integral bearing block type wind driven generator low-speed shaft transmission system with double bearings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201884219U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969051A (en) * | 2017-05-23 | 2017-07-21 | 北京三力新能科技有限公司 | A kind of bearing block of wind power generating set |
| CN107035621A (en) * | 2017-06-14 | 2017-08-11 | 山东中车风电有限公司 | A kind of half-direct-drive wind driven generator group transmission system |
| CN109139718A (en) * | 2018-10-22 | 2019-01-04 | 国电联合动力技术有限公司 | A kind of low wind speed large size double-fed Ban Zhiqu base bearing mechanism |
| CN113847352A (en) * | 2021-09-02 | 2021-12-28 | 浙江运达风电股份有限公司 | High-rigidity bearing seat |
-
2010
- 2010-12-15 CN CN2010206600730U patent/CN201884219U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969051A (en) * | 2017-05-23 | 2017-07-21 | 北京三力新能科技有限公司 | A kind of bearing block of wind power generating set |
| CN107035621A (en) * | 2017-06-14 | 2017-08-11 | 山东中车风电有限公司 | A kind of half-direct-drive wind driven generator group transmission system |
| CN109139718A (en) * | 2018-10-22 | 2019-01-04 | 国电联合动力技术有限公司 | A kind of low wind speed large size double-fed Ban Zhiqu base bearing mechanism |
| CN113847352A (en) * | 2021-09-02 | 2021-12-28 | 浙江运达风电股份有限公司 | High-rigidity bearing seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20161215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |