CN201916348U - Variable-pitch slewing bearing of wind power generator - Google Patents
Variable-pitch slewing bearing of wind power generator Download PDFInfo
- Publication number
- CN201916348U CN201916348U CN2011200032466U CN201120003246U CN201916348U CN 201916348 U CN201916348 U CN 201916348U CN 2011200032466 U CN2011200032466 U CN 2011200032466U CN 201120003246 U CN201120003246 U CN 201120003246U CN 201916348 U CN201916348 U CN 201916348U
- Authority
- CN
- China
- Prior art keywords
- outer ring
- inner ring
- ring
- circular
- wind
- 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 - Fee Related
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Classifications
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/10—Application independent of particular apparatuses related to size
- F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
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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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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a variable-pitch slewing bearing, in particular to a variable-pitch slewing bearing of a wind power generator. The variable-pitch slewing bearing comprises an inner ring, a retainer, ball rollers, sealing rings, an outer ring and the like. A plurality of rows of circular-arc raceways are processed on outer circumferential surface of the inner ring and the inner circumferential surface of the outer ring, the circular-arc raceways of the outer ring and the circular-arc raceways of the inner ring are the same in number and correspond to each other in position, the diameters of the circular arcs of each row of circular-arc raceway can be identical or different, and bearing angles of all the circular-arc raceways are 90 degrees. A group of ball rollers corresponding to the circular-arc raceway in terms of diameter are arranged in the corresponding circular-arc raceways of the inner ring and the outer ring and are fixed by the integral retainer. Combined surfaces of two ends of the inner ring and the outer ring are sealed by the sealing rings, a plurality of threaded holes are machined on outer end faces of the inner ring and the outer ring, a plurality of lubricating grease filling holes are machined on the outer end face of the outer ring and communicated with the circular-arc raceways, and accordingly the ball rollers are lubricated all the time.
Description
Affiliated technical field
The utility model relates to a kind of change oar floating bearing, relates in particular to a kind of wind-driven generator pitching floating bearing.
Background technique
Becoming the oar floating bearing in the wind-driven generator is critical component important in the wind-driven generator, is used to control the spinner velocity of blde pitch mechanism and adjusting main shaft, and it must bear the heavy load of continuous variation and vibration.
Because wind-driven generator is worked in the open air throughout the year, working condition is very abominable, temperature, humidity and impulsive load are very big, therefore require it to become oar floating bearing accuracy of manufacturing height, radially zero clearance running, and have good sealing property, lubricity, corrosion resistance, impact resistance and very high reliability, a long service life.
Summary of the invention
Can not practical requirement in order to overcome that existing wind-driven generator pitching floating bearing sealing, lubricity, corrosion resistance, impact resistance deficiency, life-span are short etc., the utility model provides a kind of have good sealing property, lubricity, corrosion resistance, shock-resistant, long-life wind-driven generator pitching floating bearing.
The technological scheme that its technical problem that solves the utility model adopts is: the wind-driven generator pitching floating bearing comprises inner ring, retainer, ball roller, seal ring and outer ring etc.The circular arc raceways are arranged in processing more respectively on the inner peripheral surface of on the outer peripheral surface of inner ring and outer ring, the quantity of circular arc raceway is determined by the size that becomes oar floating bearing bearing load, the arc diameter of every row's circular arc raceway can be identical according to the shaft strength situation, also can be different, but the carrying angle of circular arc raceway all is 90 °, and the raceway number of inner ring and outer ring is identical, the position is corresponding.
One group places the circular arc raceway of inner ring and outer ring with the corresponding ball roller of circular arc raceway diameter, and fix by the retainer of an integral body, two surfaces that retainer is adjacent with the ball roller are the spill sphere, and the spill sphere is to roll with the ball roller and cooperates.
The junction plane of inner ring and outer ring adopts the sealing of different seal ring, and the sealing circle has heatproof, moisture resistance and have higher intensity, is pressed in the manufactured seal groove of inside and outside circle with pressure during assembling.
On the exterior edge face of inner ring and outer ring, respectively be processed with several tapped holes, so that processing and when transportation lifting are used.
On the exterior edge face of outer ring, be processed with some grease addings hole, and communicate, guarantee the ball roller is carried out good lubricating with above-mentioned spill sphere.
The beneficial effects of the utility model are: adopt many row's ball rollers, can bear the heavy load and the impulsive load of continuous variation, and rotation is flexible, stationarity is good, reliability height, life-span long (reaching working life more than 20 years).
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a plan view of the present utility model (A-A analyses and observe).
Fig. 2 is a plan view of the present utility model.
Fig. 3 is the partial enlarged view of Fig. 1.
Fig. 4 is the B-B sectional drawing of Fig. 2.
Fig. 5 is the C-C sectional drawing of Fig. 2.
Among the figure:
(1) inner ring (2) retainer (3) ball roller (4) seal ring (5) outer ring
Embodiment
As shown in the figure among the embodiment:
The utility model comprises inner ring (1), retainer (2), ball roller (3), seal ring (4) and outer ring (5).
Processing the identical circular arc raceway of two row's diameters respectively on the outer peripheral surface of inner ring (1) with on the inner peripheral surface of outer ring (5), the raceway number of inner ring (1) and outer ring (5) is identical, the position is corresponding.
One group of ball roller (3) places the circular arc raceway of inner ring (1) and the circular arc raceway of outer ring (5), and it is fixing by the retainer (2) of an integral body, two surfaces that retainer (2) is adjacent with ball roller (3) are the spill sphere, and the spill sphere is to roll with ball roller (3) and cooperates.
The junction plane of inner ring (1) and outer ring (5) adopts different seal ring (4) sealing, and the sealing circle has heatproof, moisture resistance and have higher intensity, is pressed in the manufactured seal groove of inside and outside circle with pressure during assembling.
On the exterior edge face of inner ring (1) and outer ring (5), respectively be processed with 3 tapped hole D, so that processing and when transportation lifting.
On the exterior edge face of outer ring (5), be processed with 12 grease adding hole X, and communicate, keep ball roller (3) is carried out good lubricating with above-mentioned spill sphere.
Pitch variable bearings is installed between blade and the wheel hub during work, and inner ring (1) and outer ring (5) connect with blade and wheel hub respectively by bolt, make blade relatively its axis rotation to reach the purpose of change oar.
Claims (5)
1. wind-driven generator pitching floating bearing, comprise inner ring, retainer, ball roller, seal ring and outer ring etc., it is characterized in that: the circular arc raceways are arranged in processing more respectively on the inner peripheral surface of on the outer peripheral surface of inner ring and outer ring, the arc diameter of every row's circular arc raceway can be identical, also can be different, but the carrying angle of circular arc raceway all is 90 °, and the raceway number of inner ring and outer ring is identical, the position is corresponding.
2. a kind of wind-driven generator pitching floating bearing as claimed in claim 1, it is characterized in that: one group places the circular arc raceway of inner ring and outer ring with the corresponding ball roller of circular arc raceway diameter, and fix by the retainer of an integral body, two surfaces that retainer is adjacent with the ball roller are the spill sphere, and the spill sphere is to roll with the ball roller and cooperates.
3. a kind of wind-driven generator pitching floating bearing as claimed in claim 1 is characterized in that: the junction plane of inner ring and outer ring adopts different seal ring sealing, and the assembling of sealing circle is pressed in the manufactured seal groove of inside and outside circle with pressure.
4. a kind of wind-driven generator pitching floating bearing as claimed in claim 1 is characterized in that: respectively be processed with some tapped holes on the exterior edge face of inner ring and outer ring, so that processing and when transportation lifting.
5. a kind of wind-driven generator pitching floating bearing as claimed in claim 1 is characterized in that: be processed with some grease addings hole on the exterior edge face of outer ring, and communicate with above-mentioned spill sphere, keep the ball roller is carried out good lubrication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200032466U CN201916348U (en) | 2011-01-07 | 2011-01-07 | Variable-pitch slewing bearing of wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200032466U CN201916348U (en) | 2011-01-07 | 2011-01-07 | Variable-pitch slewing bearing of wind power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916348U true CN201916348U (en) | 2011-08-03 |
Family
ID=44416145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200032466U Expired - Fee Related CN201916348U (en) | 2011-01-07 | 2011-01-07 | Variable-pitch slewing bearing of wind power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762124A (en) * | 2019-10-30 | 2020-02-07 | 许昌许继风电科技有限公司 | Wind wheel of wind driven generator and variable-pitch bearing thereof |
-
2011
- 2011-01-07 CN CN2011200032466U patent/CN201916348U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762124A (en) * | 2019-10-30 | 2020-02-07 | 许昌许继风电科技有限公司 | Wind wheel of wind driven generator and variable-pitch bearing thereof |
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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: 20110803 Termination date: 20140107 |