CN201786569U - Wind generating set - Google Patents

Wind generating set Download PDF

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Publication number
CN201786569U
CN201786569U CN2010205374785U CN201020537478U CN201786569U CN 201786569 U CN201786569 U CN 201786569U CN 2010205374785 U CN2010205374785 U CN 2010205374785U CN 201020537478 U CN201020537478 U CN 201020537478U CN 201786569 U CN201786569 U CN 201786569U
Authority
CN
China
Prior art keywords
power generating
wind power
main shaft
speedup box
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 - Lifetime
Application number
CN2010205374785U
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Chinese (zh)
Inventor
王安伟
龙利民
陈秋红
李小平
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SANYI ELECTRIC CO Ltd
Sany Electric Co Ltd
Original Assignee
SANYI ELECTRIC CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to CN2010205374785U priority Critical patent/CN201786569U/en
Application granted granted Critical
Publication of CN201786569U publication Critical patent/CN201786569U/en
Anticipated expiration legal-status Critical
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Abstract

The utility model discloses a wind generating set comprising a wind wheel (21), a main shaft (22), and a speed-increasing gearbox (25), wherein the main shaft (22) is connected to the wind wheel (21) and an input shaft (251) of the speed-increasing gearbox (25) at two ends thereof respectively, the main shaft (22) being supported by one duel-row tapered roller bearing (29) which is fixed inside a bearing seat (23), the bearing seat (23) being mounted on a main frame (24) of the wind generating set. The wind generating set of the utility model has the advantages of efficient power generation, rational layout, tight structure, light weight, and more convenient transportation and lifting.

Description

Wind power generating set
Technical field
The utility model relates to technical field of wind power generation, particularly relates to a kind of wind power generating set.
Background technique
Along with becoming increasingly conspicuous of social energy problem, Climatic issues and environmental problem, more and more important role is played the part of in the development and use of renewable energy sources in development of human society.Wind-power electricity generation more and more is subject to people's attention owing to have advantages such as renewable, aboundresources, environmental protection, industrialization level height, overall cost be relatively low.
Wind-power electricity generation is meant the kinetic energy that utilizes wind generating unit to absorb wind, and the kinetic energy of keeping watch is transformed into mechanical energy, mechanical energy is converted into a kind of generation mode of electric energy, in order to improve generating efficiency, wind power plant is generally built outdoor that wind resource relatively enriches in again.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of typical wind power generating set in the prior art.
As shown in Figure 1, wind power generating set of the prior art comprises wind wheel 13, generator 12 and tower tube 11, in the working procedure, wind acts on the blade 131 of wind wheel 13, produces aerodynamic moment, and the root of blade 131 passes to wheel hub with moment of torsion, and pass to the running shaft of generator 12, drive the running shaft rotation of generator 12, generator 12 is converted into electric energy with kinetic energy, and tower tube 11 is mainly used in wind wheel 13 and the generator 12 that supports wind power generating set.
In the prior art, mainly contain the blower fan of the transfer mode of two kinds of moments of torsion: the wind power generating set of traditional Transmitted chains structure and direct-driving type wind power generation unit.
The Transmitted chains of the wind power generating set of tradition Transmitted chains structure comprises main shaft and speedup box, long main shaft is connected with the input shaft of speedup box, the output shaft of speedup box is connected with the rotating shaft of generator by coupling, the moment of torsion of wind wheel passes to the input shaft of speedup box by main shaft, is passed to the rotating shaft of generator by coupling through the moment of torsion after the speed change.
The length of main shaft of wind power generating set with said structure is generally longer, and the volume of the main frame body of wind-driven generator is bigger, and weight is heavier, and is relatively heavier, therefore, is inconvenient to transport and lift very much.
Speedup box is not set between the wind wheel of direct-driving type wind power generation unit and the generator, wind wheel directly is connected with the input shaft of generator, perhaps be connected with the input shaft of generator by main shaft, because the rotating speed of wind wheel is lower, and cancelled speedup box, therefore, the input shaft rotational speed that is passed to generator is lower, and the volume and weight of the synchronous generator of low speed also can be bigger, the inconvenience that has also caused transportation and installed.
And along with the maximization of wind power generating set, it is more and more important that the control of the weight and volume of each parts in the wind power generating set just becomes.
Therefore, how on the basis of the generating efficiency that guarantees wind power generating set, reduce the volume of each parts of wind power generating set, reduce the weight of each parts of wind power generating set, with convenient transportation and lifting, just become the present technical issues that need to address of those skilled in the art.
The model utility content
The purpose of this utility model provides a kind of wind power generating set, and this wind power generating set has reasonably layout, thereby is of compact construction and lighter weight on the basis that guarantees generating efficiency, has improved the convenience of transportation and lifting.
For solving the problems of the technologies described above, the utility model provides a kind of wind power generating set, comprise wind wheel, main shaft and speedup box, the two ends of described main shaft are connected with the input shaft of described wind wheel and described speedup box respectively, described main shaft supports by double-row conical bearing, the number of described double-row conical bearing is one, and described double-row conical bearing is fixed in the bearing support, and described bearing support is installed on the mainframe of described wind power generating set.
Preferably, the length range of described main shaft is 1.2m to 1.4m.
Preferably, described main shaft has hollow-core construction.
Preferably, described speedup box is a two-stage transmission speedup box, and velocity ratio is 30 to 60.
Preferably, described two-stage transmission speedup box comprises dual planetary gear transmission and parallel gear driving pair.
Preferably, described speedup box is supported in described mainframe by hydraulic damping device.
Preferably, described main shaft is connected with the adpting flange bolt of the input shaft that is set in described speedup box, and the outside of the suit portion of described adpting flange is set with the swelling cover.
Preferably, the bearing outer ring of described double-row conical bearing is connected by bolt with described bearing support, its bearing inner race and described main shaft interference fit.
Preferably, the generator of described wind-driven generator is connected with the output shaft of described speedup box by elastic coupling flexible coupling, and described generator is a magneto alternator.
Preferably, the yawing reducer of described wind-driven generator is installed in the described mainframe, and the driftage brake system of described yawing reducer is installed on the outside of described mainframe.
Wind power generating set provided by the utility model, comprise wind wheel, main shaft and speedup box, one end of main shaft is connected with wind wheel with adpting flange by bolt, the other end is connected with the input shaft of speedup box, main shaft supports by double-row conical bearing, the number of double-row conical bearing is one, and double-row conical bearing is fixed in the bearing support, and bearing support is installed on the mainframe of wind power generating set.Double-row conical bearing can be born the axial and radial load that passes over by wind wheel simultaneously, and load can be passed to mainframe by bearing support, prevent that loading transfer except torsional load is to speedup box, make the input shaft of speedup box bear additional bending moment, thereby only need a double-row conical bearing just can realize supporting purpose, reduce the number of parts of wind power generating set, made that the topology layout in the cabin is more reasonable, reduced the volume and weight in cabin; Further, the bearing support of spring bearing is set up separately, and be installed on the mainframe, the space of input shaft beyond mainframe of main shaft and speedup box is connected, thereby simplified the structure of mainframe greatly, reduced the size of mainframe, alleviated weight, make that the structure of wind power generating set is compact more, convenient transportation and lifting.
In a kind of preferred implementation, the length range of the main shaft of wind power generating set provided by the utility model is 1.2m to 1.4m.Because wind power generating set provided by the utility model, owing to only need a double-row conical bearing, the length of shared main shaft is less, thereby make main shaft compare with the main shaft of wind power generating set of the prior art, its length has obtained shortening clearly, make that further the structure of wind power generating set is compact more, can transport more easily and lift.
In another kind of preferred implementation, the speedup box of wind power generating set provided by the utility model is a two-stage transmission speedup box, and velocity ratio is 30 to 60.Like this, the kinetic energy that is arranged so that the input shaft that is passed to generator of speedup box has high rotational speed, thereby under the situation that guarantees generating efficiency, can avoid the oversize of generator, simultaneously, the speedup box that velocity ratio is lower can guarantee that speedup box has advantages of higher stability, has prolonged the working life of speedup box, has reduced the cost of wind power generating set.
Description of drawings
Fig. 1 is the structural representation of a kind of typical wind power generating set in the prior art;
Fig. 2 is the structural representation of a kind of embodiment of wind power generating set provided by the utility model;
Fig. 3 is the structural representation of a kind of embodiment of spindle part of wind power generating set provided by the utility model;
Fig. 4 is the schematic top plan view of the mainframe part of wind power generating set shown in Figure 2.
Embodiment
Core of the present utility model provides a kind of wind power generating set, and this wind power generating set has reasonably layout, thereby is of compact construction and lighter weight on the basis that guarantees generating efficiency, has improved the convenience of transportation and lifting.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 2 and Fig. 3, Fig. 2 is the structural representation of a kind of embodiment of wind power generating set provided by the utility model; Fig. 3 is the structural representation of a kind of embodiment of spindle part of wind power generating set provided by the utility model.
In a kind of embodiment, as shown in FIG., wind power generating set provided by the utility model, comprise wind wheel 21, main shaft 22, speedup box 25, coupling 27 and generator 28, one end of main shaft 22 by bolt be connected with wind wheel 21 with the adpting flange of main shaft 22 one, the other end is connected with the input shaft 251 of speedup box 25, and the output shaft (not shown) of speedup box 25 is connected with the input shaft of generator 28 by coupling 27; Main shaft 22 supports by double-row conical bearing 29, and the number of double-row conical bearing 29 is one, and double-row conical bearing 29 is fixed in the bearing support 23, and bearing support 23 is installed on the mainframe 24 of wind power generating set.
Particularly, the bearing outer ring 291 of double-row conical bearing 29 can be fixedlyed connected with bearing support 23 by bolted mode, its bearing inner race 293 is set in the outside of main shaft 22 by interference fit, and the tapered roller 292 that two row are oppositely arranged is set between bearing outer ring 291 and the bearing inner race 293.
In the working procedure, the blade (not shown) of wind power generating set absorbs wind energy, and be converted into mechanical energy, blade is passed to main shaft 22 with mechanical energy by the wind wheel 21 that is connected with its root, and then is passed to speedup box 25, after speedup box 25 speedups, by its output shaft output, and be passed to the rotating shaft of generator 28 via coupling 27, generator 28 utilizes the moment of torsion generating that passes over, and in the back of being incorporated into the power networks to mains supply.
In the transmittance process of energy, the moment of torsion that needs is passed to generator 28 except generating electricity, also other load also might be passed to generator 28, generation for fear of above-mentioned situation, two bearings of operated by rotary motion on the main shaft of prior art, bear respectively axially and radial load, so with loading transfer to mainframe 24; And wind power generating set provided by the utility model adopts the double-row conical bearing 29 that can bear the axial and radial load that passes over by wind wheel simultaneously, not only load can be passed to mainframe 24 by bearing support, prevent that loading transfer except torsional load is to speedup box, make the input shaft of speedup box bear additional bending moment, and reduced the quantity of bearing, only need a bearing just can realize supporting purpose, reduced the number of parts of wind power generating set, make that the topology layout in the cabin is more reasonable, reduced the volume and weight in cabin; Further, the bearing support 23 of spring bearing is set up separately, and be installed on the mainframe 24, the space of input shaft 251 beyond mainframe 24 of main shaft 22 and speedup box 25 is connected, thereby simplified the structure of mainframe 24 greatly, reduced the size of mainframe 24, alleviated weight, make that the structure of wind power generating set is compact more, convenient transportation and lifting.
Particularly, the length range of the main shaft of wind power generating set provided by the utility model can be 1.2m to 1.4m.
Like this, wind power generating set provided by the utility model, owing to only need a double-row conical bearing 29, the length of shared main shaft 22 is less, thereby make main shaft 22 compare with the main shaft of wind power generating set of the prior art, its length has obtained shortening significantly, thereby makes that further the structure of wind power generating set is compact more, can transport more easily and lift.
Certainly, also can alleviate the weight of main shaft 22 by other modes, such as: main shaft 22 has hollow-core construction.
In the prior art, 22 on the main shaft of the wind-driven generator heart therein offers the mounting hole that cable is installed, be subjected to the influence of rigidity and intensity, the size of its mounting hole is very restricted, thereby also caused the weight of main shaft bigger, be inconvenient to transport and install, and the axial dimension of the main shaft 22 of wind-driven generator provided by the utility model is less, can be processed into hollow-core construction, rigidity and requirement of strength ratio are easier to satisfy, thereby can satisfy on the basis of rigidity and requirement of strength, further reduce weight, improve the convenience of installing and transporting.
In another kind of embodiment, the speedup box 25 of wind power generating set provided by the utility model can be two-stage transmission speedup box, and the velocity ratio that is reached generally can be 30 to 60.Like this, on the one hand, the kinetic energy that is arranged so that the input shaft that is passed to generator 28 of speedup box 25 has high rotational speed, thereby under the situation that guarantees generating efficiency, can avoid the oversize of generator, on the other hand, the speedup box 28 that velocity ratio is lower also has advantages of higher stability, thereby have long working life, reduced the cost of wind power generating set.
Particularly, above-mentioned two-stage transmission speedup box can comprise dual planetary gear transmission and parallel gear driving pair.Through the transmission and the speedup of dual planetary gear transmission and parallel gear driving pair, reach the rotating speed that satisfies the generating needs.
Because the dual planetary gear transmission generally comprises external toothing, planet carrier, planetary pinion and sun gear; Transmission process is specifically as follows like this: main shaft is passed to planet carrier with kinetic energy, planet carrier drives planetary pinion and rotates, because each planetary pinion all meshes with external toothing and sun gear simultaneously, and external toothing is in stationary state, planetary pinion just need carry out revolution motion and the spinning motion around sun gear simultaneously like this, thereby transfer the motion to sun gear, the transmission shaft of sun gear transfers the motion to the driving wheel of parallel gears transmission, after the rising through transmission and rotating speed again, finally the follower by the parallel gears transmission is passed to coupling 27 and generator 28; Certainly, transmittance process can not repeat them here for other modes yet.
Further, above-mentioned two-stage transmission speedup box also can have other structures, all adopt dual planetary gear transmission or parallel gears transmission such as two-stage, yet, if two-stage is the dual planetary gear transmission, complex structure then, part is more, causes weight to rise, if two-stage is the parallel gears transmission, then off-centre is comparatively serious, influences the working life of each parts of speedup box.
In order to reduce the oscillating action that speedup box 25 is born, reduce noise, speedup box 25 can be supported in described mainframe 24 by hydraulic damping device 26.Particularly, can be provided with two mounting ears, mounting ear is seated on the hydraulic damping device 26 then, be installed on the mainframe 24 by hydraulic damping device 26 at the shell of speedup box 25.Certainly, speedup box 25 also can adopt other modes to be installed on the mainframe, such as: by circular rod type damping supporting way or the flange mode that is rigidly connected.
In a kind of embodiment, as shown in Figure 2, for convenience can suit adpting flange 32 on the input shaft 251 of the speedup box 25 of the transmission wind power generating set provided by the utility model of power, the flange that is wholely set with main shaft 22 and above-mentioned adpting flange 32 are connected by bolt, the outside of the suit portion of adpting flange 32 is set with swelling cover 31, by swelling cover 31 kinetic energy is passed to speedup box 25.
Swelling cover 31 comprises and cooperatively interacting and by bolted first portion 311 and second portion 312, first portion 311 directly is set in the suit portion of adpting flange 32, second portion 312 is set in the outside of first portion 311, the surface of contact of the two is the conical surface, when needing adpting flange 32 to hold the input shaft 251 of speedup box tightly, the bolt of urgent swelling cover 31, reach predetermined bolt pretightening, the first portion 311 of swelling cover 31 is moved to the thicker part of thickness with respect to its second portion 312, thereby the radial effect power of swelling cover 31 makes adpting flange 32 hold speedup box input shaft 251 tightly, realizes the smooth transmission of wind wheel moment of torsion.
Certainly, main shaft 22 can also be connected by other Placements with the input shaft 251 of speedup box 25, such as: connect or connect by flange by spline.
In another kind of embodiment, the generator 28 of wind-driven generator can be connected by the output shaft of elastic coupling flexible coupling with speedup box 25, thereby can improve the stressing conditions of the output shaft of the input shaft of generator 28 and speedup box 25, increases the service life.
Because magneto alternator has the generating efficiency height, and the quality of the energy that generates electricity is better, and therefore, the generator 28 of wind power generating set provided by the utility model can be magneto alternator.
Please refer to Fig. 4, Fig. 4 is the schematic top plan view of the mainframe part of wind power generating set shown in Figure 2.
Particularly, the yawing reducer 33 of wind-driven generator can be installed in the mainframe 24, the driftage brake system of yawing reducer 33 be installed on the outside of mainframe 24, to make things convenient for installation and maintenance; Further, be the installation of convenient driftage brake system, driftage brake system mounting plate 34 is set on mainframe 24.
More than wind power generating set provided by the utility model is described in detail.Used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.

Claims (10)

1. wind power generating set, comprise wind wheel (21), main shaft (22) and speedup box (25), the two ends of described main shaft (22) are connected with the input shaft (251) of described wind wheel (21) and described speedup box (25) respectively, it is characterized in that, described main shaft (22) supports by double-row conical bearing (29), the number of described double-row conical bearing (29) is one, described double-row conical bearing (29) is fixed in the bearing support (23), and described bearing support (23) is installed on the mainframe (24) of described wind power generating set.
2. wind power generating set according to claim 1 is characterized in that, the length range of described main shaft (22) is 1.2m to 1.4m.
3. wind power generating set according to claim 2 is characterized in that, described main shaft (22) has hollow-core construction.
4. according to each described wind power generating set of claim 1 to 3, it is characterized in that described speedup box (25) is a two-stage transmission speedup box, velocity ratio is 30 to 60.
5. wind power generating set according to claim 4 is characterized in that, described two-stage transmission speedup box comprises dual planetary gear transmission and parallel gear driving pair.
6. wind power generating set according to claim 4 is characterized in that, described speedup box (25) is supported in described mainframe (24) by hydraulic damping device (26).
7. according to each described wind power generating set of claim 1 to 3, it is characterized in that, described main shaft (22) is connected with adpting flange (32) bolt of the input shaft that is set in described speedup box (25) (251), and the outside of the suit portion of described adpting flange (32) is set with swelling cover (31).
8. according to each described wind power generating set of claim 1 to 3, it is characterized in that, the bearing outer ring (291) of described double-row conical bearing (29) is connected by bolt with described bearing support (23), its bearing inner race (292) and described main shaft (22) interference fit.
9. according to each described wind power generating set of claim 1 to 3, it is characterized in that the generator of described wind-driven generator (28) is connected by the output shaft of elastic coupling flexible coupling with described speedup box (25), described generator (28) is a magneto alternator.
10. according to each described wind power generating set of claim 1 to 3, it is characterized in that, the yawing reducer of described wind-driven generator (33) is installed in the described mainframe (24), and the driftage brake system of described yawing reducer (33) is installed on the outside of described mainframe (24).
CN2010205374785U 2010-09-19 2010-09-19 Wind generating set Expired - Lifetime CN201786569U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102097889A (en) * 2011-02-17 2011-06-15 国电联合动力技术有限公司 Transmission chain of wind generating set
CN102536685A (en) * 2011-12-27 2012-07-04 国电联合动力技术(连云港)有限公司 Transmission chain device of compact-type wind generating set
CN102757134A (en) * 2012-07-19 2012-10-31 安徽国祯环保节能科技股份有限公司 Vertical reverse umbrella aerator bearing seat
CN103256187A (en) * 2013-05-17 2013-08-21 国电联合动力技术(连云港)有限公司 Large-size megawatt wind turbine generator main shaft system
CN105221340A (en) * 2015-10-16 2016-01-06 广东明阳风电产业集团有限公司 A kind of structure-improved of compact type wind power generating set
CN110080953A (en) * 2019-04-15 2019-08-02 国家电投集团科学技术研究院有限公司 Wind power plant
CN110268158A (en) * 2017-02-03 2019-09-20 西门子歌美飒可再生能源公司 Wind turbine with tubular support structure and bearing assembly

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102097889A (en) * 2011-02-17 2011-06-15 国电联合动力技术有限公司 Transmission chain of wind generating set
CN102536685A (en) * 2011-12-27 2012-07-04 国电联合动力技术(连云港)有限公司 Transmission chain device of compact-type wind generating set
CN102757134A (en) * 2012-07-19 2012-10-31 安徽国祯环保节能科技股份有限公司 Vertical reverse umbrella aerator bearing seat
CN103256187A (en) * 2013-05-17 2013-08-21 国电联合动力技术(连云港)有限公司 Large-size megawatt wind turbine generator main shaft system
CN105221340A (en) * 2015-10-16 2016-01-06 广东明阳风电产业集团有限公司 A kind of structure-improved of compact type wind power generating set
CN105221340B (en) * 2015-10-16 2017-12-05 明阳智慧能源集团股份公司 A kind of structure-improved of compact wind power generating set
CN110268158A (en) * 2017-02-03 2019-09-20 西门子歌美飒可再生能源公司 Wind turbine with tubular support structure and bearing assembly
CN110080953A (en) * 2019-04-15 2019-08-02 国家电投集团科学技术研究院有限公司 Wind power plant

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Granted publication date: 20110406

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