CN201902291U - Variable-propeller bearing for wind power generation - Google Patents
Variable-propeller bearing for wind power generation Download PDFInfo
- Publication number
- CN201902291U CN201902291U CN2010206525922U CN201020652592U CN201902291U CN 201902291 U CN201902291 U CN 201902291U CN 2010206525922 U CN2010206525922 U CN 2010206525922U CN 201020652592 U CN201020652592 U CN 201020652592U CN 201902291 U CN201902291 U CN 201902291U
- Authority
- CN
- China
- Prior art keywords
- outer ring
- ring
- curve bath
- hole
- inner ring
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
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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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/08—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with two or more rows of balls
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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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- 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
- F16C2360/00—Engines or pumps
- F16C2360/31—Wind motors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wind Motors (AREA)
- Rolling Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model relates to a variable-propeller bearing for wind power generation, which comprises an outer ring, an inner ring and a plurality of steel balls positioned between the inner ring and the outer ring. A first arc-shaped groove for holding the steel balls is arranged on the inner lateral wall of the outer ring, a second arc-shaped groove for holding the steel balls is disposed on the outer lateral wall of the inner ring, the steel balls are positioned in the first arc-shaped groove and the second arc-shaped groove, the sum of the depth of the first arc-shaped groove and the depth of the second arc-shaped groove is smaller than the diameter of each steel ball, a gap used for storing lubricant is formed between the outer ring and the inner ring, a sealing part used for sealing the lubricant is arranged in the gap, an axial first through hole is disposed on the outer lateral wall of the outer ring and communicated with the first arc-shaped groove of the outer ring, and an oil nozzle is arranged in the through hole. The variable-propeller bearing has the advantages of fine lubricating effect and long service life.
Description
Technical field
The utility model relates to a kind of slewing supporting device, is specifically related to a kind of pitch variable bearings that is used for wind-power electricity generation.
Background technique
China is marching this brand-new pollution-free industry of determining of wind-power electricity generation, in order to make wind-driven generator promote generating efficiency, increase generated energy, the size at positions such as the length of blade, main shaft, speed increaser, generator is also in continuous expansion, but the loading that the while bearing is born also increases gradually, and this technical requirements to wind power bearing is very high.Pitch variable bearings on the wind-driven generator and driftage bearing are four-point contact ball formula ball bearing and double-row angular contact bal bearing, channel dimensions, position accuracy demand height, and it has higher dead load ability.Pitch variable bearings is mainly used in the adjusting vane angle and guarantees that blade rotational speed is constant, and band internal tooth and anodontia two kinds of structures are arranged, and rotates model because of at 0-90 °, normally in 0-25 ° of scope.To about the 3500mm, the pitch variable bearings that is used on the wind-driven generator surmounts this size greatly, belongs to supersize pivoting support bearing at 1000mm in the upright footpath of the general using scope of super-huge pivoting support.
Pitch variable bearings is different from the horizontal installment state of common pivoting support bearing, because the gravity of its bearing material is big, so heating value is big in the course of the work, therefore need add the lubricant oil of better performances in bearing.But, cause lubricious deficiency and be damaged because after the bearing length time used, the structure of self was added the lubricant oil difficulty in it.
Summary of the invention
At above-mentioned technical problem, the utility model provides a kind of pitch variable bearings that is used for wind-power electricity generation of high lubricating effect, and the utility model has the advantage of long service life.
The pitch variable bearings that is used for wind-power electricity generation, comprise the outer ring, inner ring and a plurality of steel ball between inner ring and outer ring, the madial wall of outer ring is provided with first curve bath that holds steel ball, the outer side wall of inner ring is provided with second curve bath that holds steel ball, steel ball is arranged in first curve bath and second curve bath, the degree of depth sum of the degree of depth of first curve bath and second curve bath is less than the diameter of steel ball, between outer ring and inner ring, form the gap of storage lubricator, be provided with the seal of seal lubrication thing in this gap, the outer side wall of described outer ring is provided with first through hole radially, this first through hole is communicated with outer ring first curve bath, is provided with oil nozzle in the described through hole.
Adopted such scheme, the degree of depth sum of the degree of depth of first curve bath and second curve bath forms the gap of storage lubricator less than the diameter of steel ball between outer ring and inner ring.Effect by the gap can be stored more lubricator, and simultaneously the gap also for lubricator mobile provides bigger space, therefore, the utlity model has better lubrication effect.
Except that having above-mentioned advantage, bearing of the present utility model can reach following technical requirements:
1, axial internal clearance＜0, radial internal clearance＜0;
2, during No Load Start, starting torque is not more than 4.5kN.m to bearing under rotating speed＞15 ℃～20 ℃ conditions of 0.1rpm temperature;
3, inject Mobil lubricating grease SHC460WI in the bearing;
4, the pure zinc of thermal spraying on the surface, thickness 60-200 μ m, thickness phase mutual deviation is not more than 50 μ m, seals processing with epoxy resin paint on the surface.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of seal;
Among the figure, 1 is oil nozzle, and 2 is the outer ring, and 3 is steel ball, and 5 is inner ring, and 51 is tooth, and 6 is seal, and 61 is the seal ring body, and 62 is positioning convex, and 63 is embedded body, and 7 for stopping up, and 8 is pin.
Embodiment
See figures.1.and.2, the pitch variable bearings that is used for wind-power electricity generation of the present utility model comprises outer ring 2, inner ring 5 and a plurality of steel ball 3 between inner ring and outer ring, and steel ball 3 separates by spacing block.Be interval with the tooth 51 that is used to mesh on the inner peripheral surface of inner ring 5.The madial wall of outer ring 1 is provided with first curve bath that holds steel ball, the outer side wall of inner ring is provided with second curve bath that holds steel ball, steel ball 3 is arranged in first curve bath and second curve bath, the degree of depth sum of the degree of depth of first curve bath and second curve bath is less than the diameter of steel ball, between outer ring and inner ring, form the gap 9 of storage lubricator, effect by gap 9 can be stored more lubricator, simultaneously the gap also provides bigger space for lubricator mobile, therefore, the utlity model has better lubrication effect.Be provided with the seal 6 of seal lubrication thing in the gap 9, seal 6 will lubricate the wet goods lubricator and be enclosed in the gap.Described seal comprises seal ring body 61, lower surface at the seal ring body is provided with positioning convex 62, positioning convex 62 is installed in the groove that is provided with on the inner ring axial end, and V-shaped embedded body 63 is set on the outer side wall of seal ring body, and embedded body is embedded in the described gap 9.The outer side wall of outer ring 2 is provided with first through hole radially, and this first through hole is communicated with first curve bath of outer ring, is provided with oil nozzle 1 in the described through hole.The outer ring is provided with second through hole that is communicated with first curve bath, is fixed with in this second through hole to stop up 7.Obstruction is provided with through hole, stops up 7 and is fixed on the outer ring by pin 8, and the axial end of outer ring 2 is provided with through hole, and an end of pin 8 extend into the through hole that passes in the through hole in the obstruction, and obstruction is fixed on the outer ring 2.
Claims (5)
1. pitch variable bearings that is used for wind-power electricity generation, comprise the outer ring, inner ring and a plurality of steel ball between inner ring and outer ring, it is characterized in that: the madial wall of outer ring is provided with first curve bath that holds steel ball, the outer side wall of inner ring is provided with second curve bath that holds steel ball, steel ball is arranged in first curve bath and second curve bath, the degree of depth sum of the degree of depth of first curve bath and second curve bath is less than the diameter of steel ball, between outer ring and inner ring, form the gap of storage lubricator, be provided with the seal of seal lubrication thing in this gap, the outer side wall of described outer ring is provided with first through hole radially, this first through hole is communicated with outer ring first curve bath, is provided with oil nozzle in the described through hole.
2. the pitch variable bearings that is used for wind-power electricity generation according to claim 1 is characterized in that: described outer ring is provided with second through hole that is communicated with first curve bath, is fixed with obstruction in this second through hole.
3. the pitch variable bearings that is used for wind-power electricity generation according to claim 2 is characterized in that: described obstruction is provided with through hole, stops up to be fixed on the outer ring by pin.
4. the pitch variable bearings that is used for wind-power electricity generation according to claim 1, it is characterized in that: described seal comprises the seal ring body, lower surface at the seal ring body is provided with positioning convex, V-shaped embedded body is set on the outer side wall of seal ring body, and embedded body is embedded in the described gap.
5. the pitch variable bearings that is used for wind-power electricity generation according to claim 1 is characterized in that: be interval with the tooth that is used to mesh on the inner peripheral surface of described inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206525922U CN201902291U (en) | 2010-12-10 | 2010-12-10 | Variable-propeller bearing for wind power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206525922U CN201902291U (en) | 2010-12-10 | 2010-12-10 | Variable-propeller bearing for wind power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201902291U true CN201902291U (en) | 2011-07-20 |
Family
ID=44272889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206525922U Expired - Fee Related CN201902291U (en) | 2010-12-10 | 2010-12-10 | Variable-propeller bearing for wind power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201902291U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788095A (en) * | 2012-07-25 | 2012-11-21 | 大连冶金轴承股份有限公司 | An internal gear yaw bearing with lightning protection function |
| CN105114465A (en) * | 2015-09-29 | 2015-12-02 | 洛阳轴研科技股份有限公司 | Four-point contact ball slewing bearing convenient to demount |
| CN106594065A (en) * | 2016-12-27 | 2017-04-26 | 北京金风科创风电设备有限公司 | Bearing and variable pitch bearing of wind generating set |
| CN107917137A (en) * | 2017-12-12 | 2018-04-17 | 洛阳新能轴承制造有限公司 | A kind of water proof type pitch variable bearings |
-
2010
- 2010-12-10 CN CN2010206525922U patent/CN201902291U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788095A (en) * | 2012-07-25 | 2012-11-21 | 大连冶金轴承股份有限公司 | An internal gear yaw bearing with lightning protection function |
| CN105114465A (en) * | 2015-09-29 | 2015-12-02 | 洛阳轴研科技股份有限公司 | Four-point contact ball slewing bearing convenient to demount |
| CN106594065A (en) * | 2016-12-27 | 2017-04-26 | 北京金风科创风电设备有限公司 | Bearing and variable pitch bearing of wind generating set |
| CN106594065B (en) * | 2016-12-27 | 2019-07-05 | 北京金风科创风电设备有限公司 | Bearings and pitch bearings for wind turbines |
| CN107917137A (en) * | 2017-12-12 | 2018-04-17 | 洛阳新能轴承制造有限公司 | A kind of water proof type pitch variable bearings |
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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: 20110720 Termination date: 20121210 |