CN206592254U - Wind driven generator principal shaft holds mechanism - Google Patents
Wind driven generator principal shaft holds mechanism Download PDFInfo
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- CN206592254U CN206592254U CN201720340069.8U CN201720340069U CN206592254U CN 206592254 U CN206592254 U CN 206592254U CN 201720340069 U CN201720340069 U CN 201720340069U CN 206592254 U CN206592254 U CN 206592254U
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- Prior art keywords
- bearing
- bearing block
- main shaft
- driven generator
- wind
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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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Abstract
Mechanism is held the utility model discloses a kind of wind driven generator principal shaft, it is related to technical field of wind power generator, main shaft including wind-driven generator, bearing block provided with annular on the outside of main shaft, supported between bearing block and main shaft by right bearing and left bearing, bearing block is the bow-shaped structural of bending, and bearing block center section is the toroidal cavity with being surrounded outside main shaft, and bearing block left and right ends are provided with the annular slot coordinated with right bearing and left bearing.Bearning mechanism in the utility model can carry larger axial thrust, so as to increase blade of wind-driven generator diameter, improve wind-power electricity generation acc power.
Description
Technical field
The utility model is related to technical field of wind power generator, especially a kind of main shaft for high-power wind-driven generator
Hold mechanism.
Background technology
Today's society, it is increasingly serious with global energy shortage and the problems such as environmental pollution, searching regenerative resource into
The key subjects faced for countries in the world.And nature wind energy is compared with other energy, not only reserves are big, widely distributed, forever
It is inexhausted but also strong with upper detective, short construction period, basic less investment than the construction of hydropower stations, flexibility, and can be effective
Contain the features such as greenhouse effects and Sandstorm Disaster, environmental protection, wind-power electricity generation is increasingly becoming the emphasis of research.Wind-power electricity generation is made
For a kind of regenerative resource of cleaning, the attention of countries in the world is increasingly subject to.
As the device for transmission, wind driven generator principal shaft is the important composition part of wind-driven generator, supports the wind
The roller bearing of power generator main shaft is then the core for ensureing the stable trouble free service of wind driven generator principal shaft.At present, wind-power electricity generation
The base bearing that owner's axle is used is taper roll bearing, and the stress that there is very large area at the taper roller two ends of the bearing is concentrated very much,
So taper roller is easy to heating, is rolled with Internal and external cycle in the when heating being under pressure, taper roller is easy to bond burn,
Destruction is produced, the service life of bearing is reduced.In addition, after the blade diameter increase of wind-driven generator, generator power can be carried
Height, but rotating shaft needs to bear bigger horizontal thrust, for the base bearing of high-power wind-driven generator, uses sphere circle
Taper roller bearing, the horizontal axis thrust that this structure can be carried is limited, existing bearing arrangement, the horizontal thrust that can bear
The requirement of high-power generator is not reached, causing the blade diameter of wind-driven generator can not increase.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of wind driven generator principal shaft and holds mechanism, and the mechanism can be held
Larger axial thrust is carried, so as to increase blade of wind-driven generator diameter, wind-power electricity generation acc power is improved.
In order to solve the above technical problems, technical solution adopted in the utility model is：A kind of wind driven generator principal shaft is held
Mechanism, includes the main shaft of wind-driven generator, it is characterised in that：Bearing block provided with annular on the outside of described main shaft, bearing block with
Supported between main shaft by right bearing and left bearing, bearing block is the bow-shaped structural of bending, and bearing block center section is and main shaft
The toroidal cavity that outside is surrounded, bearing block left and right ends are provided with the annular slot coordinated with right bearing and left bearing.
In such scheme, the structure to bearing block is improved, and the support of similar bow-shaped structural is formed, so two
Individual bearing is separated by a distance, and in middle part formation toroidal cavity, on the one hand the structure improves the thrust of main shaft axial direction, and can
The effect of the certain radial direction moment of flexure of carrying, when increasing blade diameter or weight, the mechanism has larger load-carrying properties, so that
Extend the service life of bearing.
Further preferred is made to such scheme, described right bearing and left bearing is single-row tapered roller bearing, right axle
The right-hand member positioned at bearing block is held, it rolls body axis and collects and point to left end, and left bearing is located at bearing block left end, its rolling element axle
Congruence collection simultaneously points to right-hand member.
Further preferred is made to such scheme, described right bearing and left bearing pass through annular right bearing lid and a left side respectively
Bearing cap is constrained, and wherein right bearing lid is sheathed on the outerface of spindle, and is fixed by screw with bearing block right side, left bearing lid
The outerface of spindle is sheathed on, and is fixed by screw with bearing block left side.
Further preferred is made to such scheme, the position that described toroidal cavity is contacted with main shaft is provided with sealing ring.
Make the outer surface of further preferred, described bearing block to such scheme, be provided with close to main shaft (1) left end for solid
The ring flange of dead axle bearing.
It is using the beneficial effect produced by above-mentioned technical proposal：
(1) wind driven generator principal shaft in the utility model holds mechanism, and the structure to bearing block is improved, and uses two
The individual single-row tapered roller bearing being oppositely arranged, on the one hand improves the load-carrying properties of radial direction moment of flexure, on the other hand adds axial direction
Thrust, so as to realize increase blade of wind-driven generator diameter, it is ensured that bearing is not damaged by, and finally realizes wind-driven generator work(
Rate is greatly improved, therefore the mechanism is applied to high-power wind-driven generator；
(2) the annular slot fitted bearing lid on two bearing blocks in the utility model, realizes the limit to two bearings
Position, limit the axial-movement of bearing well, matches somebody with somebody respectively with main shaft and bearing block while realizing bearing inner race and outer ring
Close, main shaft axial force can be offset, use requirement is met；
(3) bearing block in the utility model, for convenience its fix, in the increased ring flange in bearing block outer surface,
The head inner support frame of the flange and wind-driven generator is fixed, and realizes the support and positioning of main shaft, and also allow for main shaft and
The integral installation and cooperation of bearing block.
Brief description of the drawings
Fig. 1 is the structural representation of prior art wind generator main bearing；
Fig. 2 is structural representation of the present utility model；
Fig. 3 be I in Fig. 2 at partial enlarged drawing；
Fig. 4 be II in Fig. 2 at partial enlarged drawing；
In figure：1st, main shaft, 2, bearing block, 3, right bearing, 4, left bearing, 8, left bearing lid, 9, sealing ring, 10, right bearing
Lid.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Embodiment one：
As shown in Figure 2, it is that a kind of wind driven generator principal shaft holds mechanism, the mechanism is used for the master of high-power wind-driven generator
Axle is supported, and specifically includes main shaft 1, bearing block 2 and left bearing 4, right bearing 3.In terms of the support of main shaft 1, matched somebody with somebody by bearing block 2
Sympodium holds realization.Its main body of bottom bracket 2 is loop configuration, and main shaft 1 is hollow shaft, and bearing block 2 is sheathed on the outer of main shaft 1
Side, and the left alignment of the left end of bearing block 2 and main shaft 1.The structure of bearing block 2 is the bow-shaped structural of bending, its bottom bracket 2
Middle part is not contacted with the outer surface of main shaft 1, the toroidal cavity surrounded between the outer surface of main shaft 1 and the inner surface of bearing block 2.
The left and right ends inner surface of bearing block 2, which is equipped with annular slot, annular slot, places two bearings, i.e. right bearing 3 and left axle
4 are held, right bearing 3 is located at the right-hand member of bearing block 2, left bearing 4 is located between the left end of bearing block 2, two bearings by annular empty
Chamber is separated, and keeps certain axial distance.So, supported between bearing block 2 and main shaft 1 by right bearing 3 and left bearing 4, shape
Mechanism is held into the wind driven generator principal shaft in the utility model.
Different from traditional bearing support mode in the base bearing mechanism, the structure to bearing block is improved, a side
The thrust of main shaft axial direction is improved in face, and can carry the effect of certain radial direction moment of flexure, should when increasing blade diameter or weight
Mechanism has larger load-carrying properties, so as to extend the service life of bearing.
Embodiment two：
On the basis of embodiment one, type and arrangement to right bearing 3 and left bearing 4 are optimized, right axle
Hold 3 and left bearing 4 use single-row tapered roller bearing, right bearing 3 be located at bearing block 2 right-hand member, its roll body axis collect
And left side is pointed to, left bearing 4 is located at the left end of bearing block 2, and it rolls body axis and collects and point to right side.
The setting of said structure, it is ensured that the direction of the rolling body axis of two single-row tapered roller bearings, is on the one hand improved
The load-carrying properties of radial direction moment of flexure, on the other hand add axial thrust, so as to realize increase blade of wind-driven generator diameter,
Ensure that bearing is not damaged by, finally realize greatly improving for wind-power electricity generation acc power, therefore the mechanism is applied to high-power wind
Generator.
Embodiment three：
On the basis of embodiment two, in order to enter row constraint to two bearings, it is to avoid rocking on its axial direction, realize simultaneously
The cooperation of bearing inner race and outer ring respectively with main shaft 1 and bearing block 2, can offset the axial force of main shaft 1, meet use requirement, axle
The fixed form held has done further improvement.As shown in figures 3 and 4, right bearing 3 and left bearing 4 pass through its concrete measure respectively
The right bearing lid 10 and left bearing lid 8 of annular are constrained, and wherein right bearing lid 10 is sheathed on the outer surface of main shaft 1, and by screw with
The right side of bearing block 2 is fixed, and left bearing lid 8 is sheathed on the outer surface of main shaft 1, and is fixed by screw with the left side of bearing block 2.Two
Annular slot fitted bearing lid on individual bearing block, is realized to the spacing of two bearings, and the axis fortune of bearing is limited well
It is dynamic,
Example IV：
On the basis of above-described embodiment, the fixation of bearing block 2 for convenience, in the outer surface of bearing block 2, close to left end
Provided with the ring flange for fixed bearing block 2, ring flange is the head inner support frame of ring flange, the flange and wind-driven generator
It is fixed, the support and positioning of main shaft 1 are realized, and also allow for the integral installation and cooperation of main shaft 1 and bearing block 2.
In addition, also on the cut-off of bearing and toroidal cavity, the position that toroidal cavity is contacted with main shaft 1 is provided with sealing ring 9,
Ensure the sealing of bearing.
Bearing in mechanism uses ISO76:2006 rolling bearings --- rated static load and SO281:2007 axis of rolling
Hold --- two standards of dynamic load rating and rated life time are checked.
Wherein right bearing 3 uses 306/1730 single-row tapered roller bearing, its rated load：Cr=5560KN Cor=
18900KN；Axial gap between roller and packing ring is 1.5.Its structural parameters is as follows：
Dwe=61.049, α=19 °, i=1, Z=82, Lwe=92.3.
Left bearing 4 uses 306/1600 single-row tapered roller bearing, rated load：Cr=5450KN Cor=18600KN；
Axial gap between roller and packing ring is 1.5mm.Its structural parameters is as follows：
Dwe=64.409, α=20 °, i=1, Z=84, Lwe=87.6.
According to GL Wind-2010 and ISO 76:2006, checked by the density of load, the design of this bearing is in axial direction, footpath
Standard requirement is met in the presence of to, tilting moment, passes through the strength check to main shaft 306/1600/306/1730 and tired longevity
The checking computations of life, the use requirement for being designed to meet FC120-3000 units of this bearing, the design is reasonable.
When in use, main shaft 1, bearing block 2 and left bearing 4, right bearing 3 are assembled the utility model on the ground,
A black box is formed, the fixed mount being then lifted in wind-driven generator cabin is fixed, complete mechanism and wind-force
The installation of machine.The mechanism when in use, can carry larger axial thrust, so as to increase blade of wind-driven generator diameter, improve
Wind-power electricity generation acc power.
It is described above, only it is preferred embodiment of the present utility model, any formal limit is not done to the utility model
System, every any simple modification made according to technical spirit of the present utility model to above example, equivalent variations are each fallen within
Within protection domain of the present utility model.
Claims (5)
1. a kind of wind driven generator principal shaft holds mechanism, include the main shaft (1) of wind-driven generator, it is characterised in that：Described main shaft
(1) bearing block (2) of the outside provided with annular, is propped up between bearing block (2) and main shaft (1) by right bearing (3) and left bearing (4)
Support, bearing block (2) is the bow-shaped structural of bending, and bearing block (2) center section is the toroidal cavity with being surrounded outside main shaft (1),
Bearing block (2) left and right ends are provided with the annular slot coordinated with right bearing (3) and left bearing (4).
2. wind driven generator principal shaft according to claim 1 holds mechanism, it is characterised in that：Described right bearing (3) and a left side
Bearing (4) is single-row tapered roller bearing, and right bearing (3) is located at the right-hand member of bearing block (2), and it rolls body axis and collects and refer to
To left end, left bearing (4) is located at bearing block (2) left end, and it rolls body axis and collects and point to right-hand member.
3. wind driven generator principal shaft according to claim 1 or 2 holds mechanism, it is characterised in that：Described right bearing (3) and
Left bearing (4) is constrained by the right bearing lid (10) and left bearing lid (8) of annular respectively, and wherein right bearing lid (10) is sheathed on master
Axle (1) outer surface, and fixed by screw with bearing block (2) right side, left bearing lid (8) is sheathed on main shaft (1) outer surface, and
Fixed by screw with bearing block (2) left side.
4. wind driven generator principal shaft according to claim 1 holds mechanism, it is characterised in that：Described toroidal cavity and main shaft
(1) position of contact is provided with sealing ring (9).
5. wind driven generator principal shaft according to claim 1 holds mechanism, it is characterised in that：Outside described bearing block (2)
Surface, close main shaft (1) left end one end are provided with the ring flange for fixed bearing block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720340069.8U CN206592254U (en) | 2017-04-01 | 2017-04-01 | Wind driven generator principal shaft holds mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720340069.8U CN206592254U (en) | 2017-04-01 | 2017-04-01 | Wind driven generator principal shaft holds mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206592254U true CN206592254U (en) | 2017-10-27 |
Family
ID=60122021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720340069.8U Active CN206592254U (en) | 2017-04-01 | 2017-04-01 | Wind driven generator principal shaft holds mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206592254U (en) |
-
2017
- 2017-04-01 CN CN201720340069.8U patent/CN206592254U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Main bearing mechanism of wind turbine generator Effective date of registration: 20210813 Granted publication date: 20171027 Pledgee: China Co. truction Bank Corp Beijing Zhongguancun branch Pledgor: BEIJING JINGYE BEARING Co.,Ltd. Registration number: Y2021990000714 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230509 Granted publication date: 20171027 |
|
| PP01 | Preservation of patent right |