CN205101174U - Wind -driven generator and wind -driven generator set - Google Patents
Wind -driven generator and wind -driven generator set Download PDFInfo
- Publication number
- CN205101174U CN205101174U CN201520907960.6U CN201520907960U CN205101174U CN 205101174 U CN205101174 U CN 205101174U CN 201520907960 U CN201520907960 U CN 201520907960U CN 205101174 U CN205101174 U CN 205101174U
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- China
- Prior art keywords
- dead axle
- wind
- clutch shaft
- driven generator
- bearing
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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.)
- Withdrawn - After Issue
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- 238000000034 method Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 241001484259 Lacuna Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- 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
Abstract
The utility model provides a wind -driven generator and wind -driven generator set. This aerogenerator includes: the dead axle, moving axis, moving axis pass through bearing assembly cover to be established on the dead axle, and fixed axis rotation relatively, and bearing assembly includes first bearing, and the fixed setting of inner circle of first bearing is on the dead axle, and moving axis fixed connection is on the outer lane of first bearing, the stator, the stator fixed connection circle in first bearing, rotor, rotor fixed connection are on the moving axis, and the rotor is moving epaxial position and first bearing along radially corresponding. This aerogenerator can guarantee to move the air gap homogeneity of in -process well, and need not to increase dead axle weight.
Description
Technical field
The utility model relates to field of wind power equipment, particularly relates to a kind of wind-driven generator and wind power generating set.
Background technique
As shown in Figure 1, wind power generating set generally includes tower cylinder, base 3, wind-driven generator and impeller.Wherein, tower cylinder is for supporting other parts.Base, for connecting wind-driven generator and tower cylinder, can also carry other parts simultaneously.Wind-driven generator is mainly for being converted to electric energy by mechanical energy, it comprises the dead axle 4 be fixedly installed on the base 3, the stator 1 be fixed on dead axle 4, rear bearing 5 and the fore bearing be set on dead axle 4, is set in the moving axis 8 on dead axle 4, the rotor 2 be fixed on moving axis 8, the rear end cover 6 etc. be fixed on moving axis 8 by rear bearing 5 and fore bearing, has air gap between stator 1 and rotor 2.It is mechanical energy that impeller is used for wind energy transformation, and impeller comprises the wheel hub 7 be set on moving axis 8, the blade etc. be arranged on wheel hub 7.During work, impeller by wind drives and rotates, and then drives wheel hub 7, moving axis 8 and rotor 2 to rotate, and then realizes generating.
Wherein, the main shaft system of the composition such as dead axle 5, moving axis 8, fore bearing and rear bearing 5 wind power generating set.In wind power generation field, the design of main shaft system is most important, and the normal operation of wind-driven generator needs main shaft system to have high reliability.Especially direct-driving type wind power generation unit, because the outside dimension of wind-driven generator is relatively large, even if the distortion that therefore main shaft system is very little also can cause the air gap of wind-driven generator to alter a great deal, makes air gap uniformity be deteriorated.
At present, the main shaft system of wind-driven generator can be divided into flexible shaft system and stiff shafting.Regardless of which kind of axle system, all need to control wind-driven generator air gap well, make it keep even, especially after the main shaft system of wind-driven generator is subject to load, the distortion of main shaft system can not be ignored the impact of air gap.
For principal axis of compliance system, the design of main shafting structure, the Placement of each parts, main shaft system rigidity etc. all can have an impact to the change of air gap.In order to ensure that air gap is tried one's best evenly in wind-driven generator work and variable quantity is little, the method usually adopted is the rigidity ensureing whole main shaft system, reduces the deformation quantity of dead axle 4, simultaneously the deformation quantity of control moving axis 8.Ensure that the mode of the rigidity of dead axle 4 strengthens the wall thickness of dead axle 4 and moving axis 8, to improve rigidity, this causes the weight of dead axle 4 to increase, and causes cost to raise, and hoisting cost is increased.But namely substantially increase wall thickness, the distortion produced when dead axle 4 and moving axis 8 stand under load still affects air gap.
Model utility content
Embodiment of the present utility model provides a kind of wind-driven generator and wind power generating set, with the problem that the air gap solving the generator of wind power generating set of the prior art is in use easily uneven.
For achieving the above object, embodiment of the present utility model provides a kind of wind-driven generator, and it comprises: dead axle; Moving axis, moving axis is set on dead axle by bearing unit, and can fixed-axis rotation relatively, and bearing unit comprises clutch shaft bearing, and the inner ring of clutch shaft bearing is fixedly installed on dead axle, and moving axis is fixedly connected on the outer ring of clutch shaft bearing; Stator, stator is fixedly connected on the inner ring of clutch shaft bearing; Rotor, rotor is fixedly connected on moving axis, and the position of rotor on moving axis is radially corresponding with clutch shaft bearing.
Further, between the internal face of stator and the outer wall of dead axle, there is gap.
Further, stator is fixedly connected with the inner ring of clutch shaft bearing by clamping bolt.
Further, the outer wall of dead axle is provided with the dead axle flange radially protruded, the inner ring of clutch shaft bearing is by dead axle flange backstop, and dead axle flange is positioned at the side away from stator of clutch shaft bearing.
Further, wind-driven generator also comprises: bearing cap, and bearing cap is fixedly connected with one end of the close stator of moving axis, and the outer ring of backstop clutch shaft bearing; Seal ring, seal ring is arranged between stator and the inner ring of clutch shaft bearing, and the gap between the wall of sealing dead axle and bearing cap, clamping bolt is successively through the inner ring of stator, seal ring and clutch shaft bearing.
Further, the outer wall of dead axle is provided with the dead axle flange radially protruded, the inner ring of clutch shaft bearing is by dead axle flange backstop, and dead axle flange is between clutch shaft bearing and stator.
Further, wind-driven generator also comprises: bearing cap, and bearing cap is fixedly connected with one end of the close stator of moving axis, and the outer ring of backstop clutch shaft bearing; Seal ring, seal ring is set on the side face of dead axle flange, and the gap between the side face of sealing dead axle flange and bearing cap.
According to another aspect of the present utility model, provide a kind of wind power generating set, comprise wind-driven generator, wind-driven generator is above-mentioned wind-driven generator.
Further, wind power generating set also comprises base, and dead axle is fixedly installed on base.
Further, wind power generating set also comprises wheel hub, and wheel hub is fixedly installed on moving axis.
Stator is fixed on the inner ring of clutch shaft bearing by the wind power generating set of embodiment of the present utility model, rotor is fixed on moving axis, and make the setting position of rotor on moving axis radially corresponding with clutch shaft bearing, axial spacing between stators and rotators is reduced, the skew of stator and rotor is more close, and then the relative displacement between stators and rotators is reduced, can effectively prevent the air gap between rotor and stator from changing.
Accompanying drawing explanation
Fig. 1 is the structural representation of wind power generating set of the prior art;
Fig. 2 is the schematic diagram of the technical solution problem of embodiment of the present utility model;
Fig. 3 is the structural representation of the wind power generating set of embodiment of the present utility model;
Fig. 4 is the A place enlarged view in Fig. 3;
Fig. 5 is the structural representation of the wind power generating set of another embodiment of the present utility model;
Fig. 6 is the enlarged view at B place in Fig. 5.
Description of reference numerals:
Reference character in background technique:
1, stator; 2, rotor; 3, base; 4, dead axle; 5, rear bearing; 6, rear end cover; 7, wheel hub; 8, moving axis;
Reference character in the application's scheme:
Stator before 1a, deformation; Stator after 1a ', deformation; Rotor before 2a, deformation; Rotor after 2a ', deformation; 10, dead axle; 20, moving axis; 11, dead axle flange; 31, clutch shaft bearing; 32, the second bearing; 40, stator; 50, rotor; 66, spacing preiection; 67, stopper protrusion; 70, wheel hub; 80, base; 91, gap; 92, clamping bolt; 93, bearing cap; 94, seal ring; 96, fore bearing end cap.
Embodiment
Below in conjunction with accompanying drawing, the wind-driven generator of the utility model embodiment and wind power generating set are described in detail.
Embodiment one
As shown in Figures 2 to 4, in the present embodiment, wind-driven generator comprises dead axle 10, moving axis 20, bearing unit, stator 40 and rotor 50.Dead axle 10 is for carrying other parts.Moving axis 20 is set on dead axle 10 by bearing unit, and can rotate relative to dead axle 10.Bearing unit comprises clutch shaft bearing 31, and the inner ring of clutch shaft bearing 31 is fixedly installed on dead axle 10, and the outer ring of clutch shaft bearing 31 is fixedly connected with moving axis 20, and realizing moving axis 20 with this can rotate relative to dead axle 10.Stator 40 is fixedly connected on the inner ring of clutch shaft bearing 31.Rotor 50 is fixedly connected on moving axis 20, and the position of rotor 50 on moving axis 20 is radially corresponding with clutch shaft bearing 31.
Owing to stator 40 being fixed on the inner ring of clutch shaft bearing 31, and the position of rotor 50 on moving axis 20 is radially corresponding with clutch shaft bearing 31, stator 40 and rotor 50 distance are in the axial direction reduced, when producing deformation when dead axle 10 stand under load like this, the deformation quantity at stator 40 place and rotor 50 place is suitable, so the relative position variable quantity between rotor 50 and stator 40 is little, air gap change is between the two little.In addition, rotor 50 and stator 40 are all equivalent to be connected on clutch shaft bearing 31, and when dead axle 10 deformation, clutch shaft bearing 31, rotor 50 move together with stator 40, relative position between rotor 50 and stator 40 is moved little, air gap between the two can be kept to change little.
Shown in Figure 2, this wind-driven generator reduces the principle that air gap after stand under load changes the non-uniform air-gap caused: when occuring bending and deformation when the stressed F effect of supporting element, be fixedly installed on the mounting blocks generation small skew on supporting element, make mounting blocks produce the angle of inclination in a relative level direction, the distortion of mounting blocks and supporting element is basically identical.Stator 1a before distortion and rotor 2a is all fixedly connected on mounting blocks, when mounting blocks produces, both tilt with the inclination of mounting blocks, form the stator 1a ' after distortion and rotor 2a ', but both inclination and distortion angles are identical, thus make both relative positions not change or change very little, and then ensure both gap constant.
In conjunction with shown in Figure 4, between the internal face of stator 40 and the outer wall of dead axle 10, there is gap 91, can prevent from like this affecting stator 40 during dead axle 10 stress and deformation, ensure the stable of the air gap between stator 40 and rotor 50 better.
In the present embodiment, the outer wall of dead axle 10 is provided with the dead axle flange 11 radially protruded, this dead axle flange 11 is for the inner ring of backstop clutch shaft bearing 31.
Preferably, in the present embodiment, stator 40 is fixedly connected with by the inner ring of clamping bolt 92 with clutch shaft bearing 31.Being connected by clamping bolt 92 on the one hand connects more convenient and reliability is high, and versatility is good on the other hand, can change easily when clamping bolt 92 has damage.
In the present embodiment, the inner ring of clutch shaft bearing 31 is provided with tapped hole, can providing holes on dead axle flange 11, also can not providing holes, clamping bolt 92 is successively through inner ring and the dead axle flange 11 of stator 40, clutch shaft bearing 31.Tapped hole screw-thread fit on the inner ring of clamping bolt 92 and clutch shaft bearing 31.Clamping bolt 92 coordinates with the interporal lacuna on stator 40, if providing holes on dead axle flange 11, then clamping bolt 92 is also Spielpassung with the hole on dead axle flange 11.
Certainly, in other embodiments, stator 40 can be other Placement with the connection of the inner ring of clutch shaft bearing 31, such as riveted joint etc.
In order to all carry out reliably spacing to the inner ring of clutch shaft bearing 31 and outer ring, moving axis 20 is provided with radially corresponding with dead axle flange 11 spacing preiection 66, this spacing preiection 66 and dead axle flange 11 are positioned at the same side of clutch shaft bearing 31, and this spacing preiection 66 is for the outer ring of backstop clutch shaft bearing 31.
Preferably, seal ring 94 and bearing cap 93 is provided with in the side away from dead axle flange 11 of clutch shaft bearing 31 for backstop.Particularly, bearing cap 93 is fixedly connected with one end of the close stator 40 of moving axis 20, and the outer ring of backstop clutch shaft bearing 31.Between the inner ring that seal ring 94 is arranged on stator 40 and clutch shaft bearing 31 namely seal ring 94 between stator 40 and clutch shaft bearing 31, and the gap between the wall of sealing dead axle 10 and bearing cap 93.Seal ring 94 can prevent the lubricant oil in clutch shaft bearing 31 from oozing out, and also can prevent foreign matter from entering in clutch shaft bearing 31.
In the present embodiment, wind-driven generator also comprises the second bearing 32, second bearing 32 and coordinates with clutch shaft bearing 31, for forming a good support to moving axis 20.In the present embodiment, the second bearing 32 is positioned at the front end (one end away from base 80) of moving axis 20, is provided with fore bearing end cap 96 and deviates from for preventing the second bearing 32 on front side of it.Clutch shaft bearing 31 is positioned at the rear end (one end near base 80) of moving axis 20.
According to another aspect of the present utility model, provide a kind of wind power generating set, it comprises base 80, wind-driven generator and impeller etc.Wind-driven generator is above-mentioned wind-driven generator.The dead axle 10 of wind-driven generator is fixedly installed on base 80.The wheel hub 70 of impeller is arranged on the moving axis 20 of wind-driven generator.
During the work of this wind power generating set, owing to the inner ring of stator 40, seal ring 94, clutch shaft bearing 31 and dead axle 10 being linked together by clamping bolt 92, stator 40 does not contact with dead axle 10 simultaneously, keep that there is gap 91, gap 91 whole axle system by limit load cause produce maximum distortion time still exist, the inner ring of such guarantee stator 40, seal ring 94, clutch shaft bearing 31, dead axle 10, when stress deformation, can keep identical deformation angle.The flange that moving axis 20 is connected with clutch shaft bearing 31 has enough rigidity, makes the distortion of moving axis 20 consistent with the distortion of clutch shaft bearing 31, and this makes when the distortion of axle system stand under load, can effectively reduce air gap change between stator 40 because spindle deformation causes and rotor 50.
The utility model is in the form of a bolt the design that generator unit stator, dead axle and bearing connect, and this mode can reduce the change of the air gap causing motor because of dead axle stress deformation.
The utility model can reduce the problem brought due to spindle deformation, effectively reduces the impact of spindle deformation on motor gas-gap.Reduce the rigidity requirement to main shaft simultaneously, reduce design difficulty.
Embodiment two
As illustrated in Figures 5 and 6, in the present embodiment, except dead axle flange 11 is different with the setting position of seal ring 94, the structure of other parts is all identical with embodiment one with setting position.
In the present embodiment, dead axle flange 11 is between clutch shaft bearing 31 and stator 40.Clamping bolt 92 coordinates through the tapped hole on the inner ring of stator 40, dead axle flange 11 and clutch shaft bearing 31 successively.Clamping bolt 92 is Spielpassung with the hole on dead axle flange 11 and the hole on stator 40.
Seal ring 94 is set on the side face of dead axle flange 11, and the gap 91 (see Fig. 4) between the side face of sealing dead axle flange 11 and bearing cap 93, as shown in Figure 5, bearing cap 93 is fixedly connected with one end of the close stator 40 of moving axis 20.
In order to can backstop clutch shaft bearing 31 well, moving axis 20 is provided with stopper protrusion 67, stopper protrusion 67 be positioned at the side away from stator 40 of clutch shaft bearing 31, and it can the inner ring of backstop clutch shaft bearing 31 and outer ring.Also namely, bearing cap 93 and dead axle flange 11 coordinate the side of backstop clutch shaft bearing 31; The opposite side of stopper protrusion 67 backstop clutch shaft bearing 31.
Wind-driven generator of the present utility model and wind power generating set have following effect:
Effectively reduce the impact of axle system distortion on the air gap of wind-driven generator, thus ensure that the normal operation of wind-driven generator, in addition, can also reduce dead axle rigidity requirement, reduce design difficulty, effectively control the weight of dead axle, reduce costs.Also contribute to controlling void dimension, reduce wind-driven generator cost.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (10)
1. a wind-driven generator, is characterized in that, comprising:
Dead axle (10);
Moving axis (20), described moving axis (20) is set on described dead axle (10) by bearing unit, and can rotate relative to described dead axle (10), described bearing unit comprises clutch shaft bearing (31), the inner ring of described clutch shaft bearing (31) is fixedly installed on described dead axle (10), and described moving axis (20) is fixedly connected on the outer ring of described clutch shaft bearing (31);
Stator (40), described stator (40) is fixedly connected on the inner ring of described clutch shaft bearing (31);
Rotor (50), described rotor (50) is fixedly connected on described moving axis (20), and the position of described rotor (50) on described moving axis (20) is radially corresponding with described clutch shaft bearing (31).
2. wind-driven generator according to claim 1, is characterized in that, has gap (91) between the internal face of described stator (40) and the outer wall of described dead axle (10).
3. wind-driven generator according to claim 1, is characterized in that, described stator (40) is fixedly connected with by the inner ring of clamping bolt (92) with described clutch shaft bearing (31).
4. wind-driven generator according to claim 3, it is characterized in that, the outer wall of described dead axle (10) is provided with the dead axle flange (11) radially protruded, the inner ring of described clutch shaft bearing (31) is by described dead axle flange (11) backstop, and described dead axle flange (11) is positioned at the side away from described stator (40) of described clutch shaft bearing (31).
5. wind-driven generator according to claim 4, is characterized in that, described wind-driven generator also comprises:
Bearing cap (93), described bearing cap (93) is fixedly connected with one end of the close described stator (40) of described moving axis (20), and the outer ring of clutch shaft bearing described in backstop (31);
Seal ring (94), described seal ring (94) is arranged between the inner ring of described stator (40) and described clutch shaft bearing (31), and the gap sealed between the wall of described dead axle (10) and described bearing cap (93), described clamping bolt (92) is successively through the inner ring of described stator (40), described seal ring (94) and described clutch shaft bearing (31).
6. wind-driven generator according to claim 3, it is characterized in that, the outer wall of described dead axle (10) is provided with the dead axle flange (11) radially protruded, the inner ring of described clutch shaft bearing (31) is by described dead axle flange (11) backstop, and described dead axle flange (11) is positioned between described clutch shaft bearing (31) and described stator (40).
7. wind-driven generator according to claim 6, is characterized in that, described wind-driven generator also comprises:
Bearing cap (93), described bearing cap (93) is fixedly connected with one end of the close described stator (40) of described moving axis (20), and the outer ring of clutch shaft bearing described in backstop (31);
Seal ring (94), described seal ring (94) is set on the side face of described dead axle flange (11), and seals the gap between the side face of described dead axle flange (11) and described bearing cap (93).
8. a wind power generating set, comprises wind-driven generator, it is characterized in that, the wind-driven generator of described wind-driven generator according to any one of claim 1 to 7.
9. wind power generating set according to claim 8, is characterized in that, described wind power generating set also comprises base (80), and described dead axle (10) is fixedly installed on described base (80).
10. wind power generating set according to claim 8, is characterized in that, described wind power generating set also comprises wheel hub (70), and described wheel hub (70) is fixedly installed on described moving axis (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520907960.6U CN205101174U (en) | 2015-11-13 | 2015-11-13 | Wind -driven generator and wind -driven generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520907960.6U CN205101174U (en) | 2015-11-13 | 2015-11-13 | Wind -driven generator and wind -driven generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205101174U true CN205101174U (en) | 2016-03-23 |
Family
ID=55516956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520907960.6U Withdrawn - After Issue CN205101174U (en) | 2015-11-13 | 2015-11-13 | Wind -driven generator and wind -driven generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205101174U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298754A (en) * | 2015-11-13 | 2016-02-03 | 北京金风科创风电设备有限公司 | Wind driven generator and wind driven generator set |
| CN107385170A (en) * | 2017-07-10 | 2017-11-24 | 陕西奥尔德机械有限公司 | A kind of wheel body quenching unit and process for quenching |
| CN108825440A (en) * | 2018-06-20 | 2018-11-16 | 北京金风科创风电设备有限公司 | Direct-drive wind generating set |
-
2015
- 2015-11-13 CN CN201520907960.6U patent/CN205101174U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298754A (en) * | 2015-11-13 | 2016-02-03 | 北京金风科创风电设备有限公司 | Wind driven generator and wind driven generator set |
| CN105298754B (en) * | 2015-11-13 | 2019-02-15 | 北京金风科创风电设备有限公司 | Wind driven generator and wind driven generator set |
| CN107385170A (en) * | 2017-07-10 | 2017-11-24 | 陕西奥尔德机械有限公司 | A kind of wheel body quenching unit and process for quenching |
| CN108825440A (en) * | 2018-06-20 | 2018-11-16 | 北京金风科创风电设备有限公司 | Direct-drive wind generating set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160323 Effective date of abandoning: 20190215 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160323 Effective date of abandoning: 20190215 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |