CN218669662U - Wind generating set - Google Patents
Wind generating set Download PDFInfo
- Publication number
- CN218669662U CN218669662U CN202222837507.5U CN202222837507U CN218669662U CN 218669662 U CN218669662 U CN 218669662U CN 202222837507 U CN202222837507 U CN 202222837507U CN 218669662 U CN218669662 U CN 218669662U
- Authority
- CN
- China
- Prior art keywords
- generator
- ring
- wind
- generating set
- locking portion
- 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.)
- Active
Links
Images
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
Landscapes
- Wind Motors (AREA)
Abstract
The utility model provides a wind generating set, it includes: a wind wheel having a hub; the gear ring is in transmission connection with the hub; a bearing having an inner race and an outer race; a generator assembly; the generator components are arranged independently, the generator components are in transmission connection with the gear ring, and the hub is fixed on the bearing inner ring. By arranging a plurality of independent generator assemblies in transmission connection with the gear ring, the corresponding power and volume of the generator assemblies can be reduced, the modular assembly is realized, and the modular and miniaturized design of the generator assemblies is realized; the fault-tolerant operation capability of the wind generating set is realized; the operation and maintenance of the generator assembly are facilitated, and particularly, the cost for replacing the generator assembly is reduced; the transmission system structure of the wind generating set is simplified, and the cost of the whole wind generating set is effectively reduced.
Description
Technical Field
The utility model relates to a wind-powered electricity generation field, in particular to wind generating set.
Background
In recent years, the development of wind power generation technology is rapid, and various forms of wind power generator sets have appeared. Although the forms are different, the number of the effective power generation units is generally one, namely only one speed-up gear box is matched with one generator, when one of the speed-up gear box and the generator breaks down, the whole wind generating set needs to be stopped, the economy is not high enough, and the fault-tolerant performance is low; in addition, with the large-scale wind generating set, the shafting is longer, the structure is complex, the whole wind generating set is heavier and heavier, especially, the volume and the weight of the wind wheel are greatly increased, the bearing and the base bear larger load, the strength of the bearing and the base is higher, and the cost is high.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a wind generating set.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme: a wind power generating set, comprising:
a wind wheel having a hub;
the gear ring is in transmission connection with the hub;
a bearing having an inner race and an outer race;
a generator assembly;
the generator components are arranged independently, the generator components are in transmission connection with the gear ring, and the hub is fixed on the inner ring.
In the scheme, a plurality of independent generator assemblies are arranged and in transmission connection with the gear ring, on the premise of ensuring the power generation power, the original single large-scale generator assembly can be replaced by a plurality of miniaturized generator assemblies, the torque of the wind wheel is shared by the plurality of generator assemblies at the same time, the corresponding power and volume of the generator assemblies can be reduced, the modular assembly is realized, and meanwhile, the corresponding control units such as a converter and the like can also adopt a plurality of miniaturized arrangements; the number of the generator components can be matched according to wind resources of wind fields in different regions, namely, wind energy and a wind generating set are optimally matched; when one of the generator assemblies fails, the generator assembly is only needed to be disconnected, and the other generator assemblies can normally operate, so that the fault-tolerant operation capability of the whole wind generating set is greatly improved, and in the maintenance process, large-scale hoisting equipment is not needed, and the hoisting of related parts can be realized by using the hoisting equipment on the wind generating set, so that the convenience and the economy of operation and maintenance are realized; because the wheel hub is fixed on the inner ring of the bearing, the volume and the weight of the transmission shafting can be correspondingly reduced, thereby reducing the load born by the bearing and the base, reducing the requirements on the strength of the bearing and the base, reducing the cost of the wind generating set, and compared with a single large-scale generator component, a plurality of miniaturized generator components can be closer to the wheel hub, and the structure is more compact.
Preferably, the generator assembly comprises a speed-increasing gearbox and a generator, and the input end and the output end of the speed-increasing gearbox are respectively in transmission connection with the gear ring and the generator.
In this scheme, if the input shaft of generator is direct to be connected with ring gear meshing transmission, then the drive ratio is low, and the generator rotational speed is low, and when the same moment of torsion of transmission, the generator is bulky, through addding speed-increasing gear box, realizes the high rotational speed of ring gear low-speed to generator input shaft, improves the drive ratio, transmits the moment of torsion better to can realize the miniaturized design of generator better.
Preferably, the wind generating set further comprises a base, the outer ring is fixed on the base, and the generator assembly is arranged on the outer side of the base.
In this scheme, this structure setting, speed-increasing gear does not occupy the inside space of frame, can be used for installing equipment such as converter, switch board in the frame, effectively utilized the space, and the structure is compacter, can shorten the axial length of whole wind generating set.
Preferably, the wind generating set further comprises a base, a first locking portion and a second locking portion, the first locking portion is fixed on the inner ring, the second locking portion is fixed on the base, a first limiting hole and a second limiting hole are formed in the first locking portion and the second locking portion, and the first limiting hole and the second limiting hole are used for enabling a tool to be inserted and limiting the inner ring.
In this scheme, this mechanism sets up, and first locking portion and second locking portion are through locking the inner circle, and the locking wind wheel restricts the wind wheel rotation when being convenient for wind generating set maintains, but also strengthened the rigidity of inner circle and the rigidity of frame with the outer lane junction, insert first spacing hole and the spacing hole of second realization inner circle spacing through the instrument, simple structure, it is more convenient to operate.
Preferably, the ring gear and the first locking portion are fixed to both end surfaces of the inner race, respectively.
In the scheme, the structure further enhances the rigidity of the inner ring, reduces the deformation of the raceway and improves the overall rigidity of the bearing.
Preferably, the first latch portion comprises a locking disc, the second latch portion comprises a locking pin socket, and the tool is a locking pin.
In the scheme, a pin connection locking mode is adopted, the locking pin has reliable self-locking performance and high positioning precision, and the positioning precision and the connection reliability cannot be influenced by repeated assembly and disassembly in the first limiting hole and the second limiting hole.
Preferably, the wind generating set further comprises a reinforcing ring and a base, and the reinforcing ring and the base are respectively fixed on two end faces of the outer ring.
In the scheme, the structure further enhances the rigidity of the outer ring, reduces the deformation of the raceway and improves the overall rigidity of the bearing.
Preferably, the ring gear is fixed between the hub and the inner ring.
In this scheme, this structure setting, the power of wind wheel can directly transmit to wind generating set through the ring gear, when the ring gear appears breaking tooth etc. and damages, need not change the bearing, because the cost of bearing is far higher than the ring gear for cost of maintenance is lower.
Preferably, at least two of the generator assemblies are distributed along the circumference of the rotor.
In this scheme, this mechanism sets up, and generating set effort on wind wheel and ring gear is more even, and whole wind generating set is more stable.
Preferably, the bearing is a double row tapered roller bearing, a three row cylindrical roller bearing or a sliding bearing.
In this scheme, double-row tapered roller bearing not only can bear great radial load, also can bear certain axial load, and the bearing play is less relatively, bears the weight of evenly, and stability is better.
The utility model discloses an actively advance the effect and lie in: by arranging a plurality of independent generator assemblies in transmission connection with the gear ring, on the premise of ensuring the generating power, the original single large-scale generator assembly can be replaced by a plurality of miniaturized generator assemblies, the torque of the wind wheel is shared by the plurality of generator assemblies at the same time, the corresponding power and volume of the generator assemblies can be reduced, the modular assembly is realized, and meanwhile, the corresponding control units such as a converter and the like can also adopt a plurality of miniaturized arrangements; the number of the generator components can be matched according to wind resources of wind fields in different regions, namely, wind energy and a wind generating set are optimally matched; when one of the generator assemblies fails, the other generator assemblies can normally run only by disconnecting the generator assembly, so that the fault-tolerant running capability of the whole wind generating set is greatly improved, and when the wind generating set is maintained, large-scale hoisting equipment is not needed, and hoisting of related parts can be realized by using hoisting equipment on the wind generating set, so that the convenience and the economy of operation and maintenance are realized; because the hub is fixed on the inner ring of the bearing, the volume and the weight of the transmission shafting can be correspondingly reduced, thereby reducing the load born by the bearing and the base, reducing the requirements on the strength of the bearing and the base and reducing the cost of the wind generating set; the modularized and miniaturized design of the generator assembly is realized; the fault-tolerant operation capability of the wind generating set is realized; the operation and maintenance of the generator assembly are facilitated, and particularly, the cost for replacing the generator assembly is reduced; the transmission system structure of the wind generating set is simplified, and the cost of the whole wind generating set is effectively reduced.
Drawings
Fig. 1 is a schematic structural view of a wind turbine generator system according to a preferred embodiment of the present invention.
Fig. 2 is a schematic view of an internal structure of a wind turbine generator according to a preferred embodiment of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Description of the reference numerals
Speed-increasing gear box 12
Reinforcing ring 13
Wheel hub 21
Bearing 4
Nacelle cover 7
Tower 8
Detailed Description
The present invention will be more clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present embodiment discloses a wind turbine generator system, which includes: a rotor 2, the rotor 2 having a hub 21; the gear ring 3 is in transmission connection with the hub 21; a bearing 4, the bearing 4 having an inner race 41 and an outer race 42; the generator component 1, wherein, generator component 1 is at least two, and at least two generator component 1 independent settings, at least two generator component 1 all are connected with ring gear 3 transmission, and wheel hub 21 is fixed on inner circle 41.
In the embodiment, a plurality of independent generator assemblies 1 are arranged and in transmission connection with the gear ring 3, on the premise of ensuring the generating power, the original single large generator assembly 1 can be replaced by a plurality of small generator assemblies 1, the torque of the wind wheel 2 is shared by the plurality of generator assemblies 1 at the same time, the corresponding power and volume of the generator assemblies 1 can be reduced, the modular assembly is realized, and meanwhile, a plurality of small control units such as corresponding converters can be arranged; the number of the generator assemblies 1 can be matched according to wind resources of wind fields in different regions, namely, wind energy and a wind generating set are optimally matched; when one of the generator assemblies 1 fails, the generator assembly 1 is only needed to be disconnected, and the other generator assemblies 1 can normally operate, so that the fault-tolerant operation capacity of the whole wind generating set is greatly improved, and in the maintenance process, large-scale hoisting equipment is not needed, and the hoisting of relevant parts can be realized by using the hoisting equipment on the wind generating set, so that the convenience and the economy of operation and maintenance are realized; because the hub 21 is fixed on the inner ring 41 of the bearing 4, the volume and the weight of the transmission shafting can be correspondingly reduced, thereby reducing the load born by the bearing 4 and the base 5, reducing the requirements on the strength of the bearing 4 and the base 5, reducing the cost of the wind generating set, enabling the generator component 1 to be closer to the hub 21 of the wind wheel 2, and having more compact structure.
Specifically, the bearing 4 in the present embodiment is a double row tapered roller bearing. The double-row tapered roller bearing not only can bear larger radial load, but also can bear certain axial load, the bearing clearance is relatively smaller, the bearing is uniform, and the stability is better. Of course, in other alternative embodiments, other bearings may be selected, such as three rows of cylindrical roller bearings, plain bearings, etc.
As shown in fig. 3, the generator assembly 1 includes a speed-increasing gear box 12 and a generator 11, and an input end and an output end of the speed-increasing gear box 12 are respectively in transmission connection with the ring gear 3 and the generator 11. Certainly, in other alternative embodiments, the input shaft of the generator 11 may also be directly in meshing transmission connection with the gear ring 3, if the input shaft of the generator 11 is directly in meshing transmission connection with the gear ring 3, the transmission ratio is low, the rotating speed of the generator 11 is low, and when the same torque is transmitted, the volume of the generator 11 is larger, and by additionally arranging the speed-increasing gear box 12, the low rotating speed of the gear ring 3 to the high rotating speed of the input shaft of the generator 11 is realized, the transmission ratio is improved, the torque is transmitted better, and thus the miniaturization design of the generator 11 can be realized better.
As shown in fig. 3, the wind turbine further includes a base 5, the outer ring 42 is fixed on the base 5, and the generator assembly 1 is disposed outside the base 5. The speed-increasing gear box 12 does not occupy the space inside the base 5, and equipment such as a converter, a control cabinet and the like can be installed in the base 5, so that the space is effectively utilized, the structure is more compact, and the axial length of the whole wind generating set can be shortened. Of course, in other alternative embodiments, the generator assembly 1 may also be arranged inside the housing 5.
As shown in fig. 2 and 3, the engine base 5 is provided with the nacelle cover 7 on the outer periphery, the engine base 5 is fixed on the tower 8, and the independent arrangement of the generator assemblies 1 means that the generator assemblies 1 are connected with the engine base 5 only through the gear ring 3, and the generator assemblies 1 are not directly connected with each other, so that mutual influence is avoided, and the independence of the generator assemblies 1 is ensured.
As shown in fig. 3, the wind generating set further includes a base 5, a first locking portion 61 and a second locking portion 62, the first locking portion 61 is fixed on the inner ring 41, the second locking portion 62 is fixed on the base 5, a first limiting hole and a second limiting hole are formed in the first locking portion 61 and the second locking portion 62, and the first limiting hole and the second limiting hole are used for allowing a tool to be inserted to limit the inner ring 41. The first locking part 61 and the second locking part 62 are used for locking the inner ring 41, so that the wind wheel 2 is conveniently locked to limit the rotation of the wind wheel 2 when the wind generating set is maintained, the rigidity of the inner ring 41 and the rigidity of the joint of the engine base 5 and the outer ring 42 are enhanced, the limit of the inner ring 41 is realized by inserting tools into the first limiting hole and the second limiting hole, the structure is simple, and the operation is more convenient.
Specifically, the first locking portion 61 is a locking disc, the second locking portion 62 is a locking pin seat, the tool is a locking pin (not shown in the figure), the locking disc is connected to the inner ring 41 through a bolt, the locking pin seat is connected to the base 5 through a bolt, the wind wheel 2 can be locked by inserting the locking pin installed on the locking pin seat into the locking disc, and the load, thrust and bending moment from the wind wheel 2 are transmitted to the base 5 through the tapered rollers of the double-row tapered roller bearing 4.
As shown in fig. 3, the ring gear 3 and the first locking portion 61 are fixed to both end surfaces of the inner race 41, respectively. The ring gear 3 and the first locking portion 61 further enhance the rigidity of the inner ring 41, reduce raceway deformation, and improve the overall rigidity of the bearing 4.
As shown in fig. 3, the wind turbine further includes a reinforcing ring 13, and the reinforcing ring 13 and the housing 5 are fixed to two end surfaces of the outer ring 42, respectively. Specifically, the reinforcing ring 13 and the outer ring 42 are fixed on the tower 8 through bolt holes formed in the reinforcing ring 13 and the outer ring 42 respectively by bolts, and the rigidity of the outer ring 42 is further enhanced by matching the reinforcing ring 13 with the base 5, so that the deformation of the raceway is reduced, and the overall rigidity of the bearing 4 is improved.
As shown in fig. 3, the ring gear 3 is fixed between the hub 21 and the inner ring 41. The power of the wind wheel 2 can be directly transmitted to the wind generating set through the gear ring 3, when the gear ring 3 is damaged due to tooth breakage and the like, the bearing 4 does not need to be replaced, and the cost of the bearing 4 is far higher than that of the gear ring 3, so that the maintenance cost is lower. Of course, in other alternative embodiments, both the hub 21 and the ring gear 3 may be fixed directly to the inner ring 41.
As shown in fig. 2, the generator assemblies 1 are distributed along the circumference of the wind rotor 2. The acting force of the generator component 1 on the wind wheel 2 and the gear ring 3 is more uniform, and the whole wind generating set is more stable.
Specifically, in this embodiment, the wind wheel 2, the gear ring 3 and the inner ring 41 are connected by bolts, the base 5, the outer ring 42 and the reinforcement ring 13 are connected by bolts, and the locking disc 61 and the locking pin base 62 are respectively connected to the inner ring 41 and the base 5 by bolts, wherein the connection between the wind wheel 2 and the base 5 through the double-row tapered roller bearing 4 is divided into two parts, namely, the wind wheel 2 and the inner ring 41 are connected and rotate synchronously, the outer ring 42 is fixed on the base 5 by bolts, and the torque from the wind wheel 2 is transmitted to the generator 11 through the gear engagement between the gear ring 3 and the speed-up gear box 12, so as to realize the conversion of wind energy, mechanical energy and electric energy.
The wind generating set comprises the following installation steps: mounting the locking pin boss 62 on the stand 5; fixing the ring gear 3 and the lock disk 61 to the inner ring 41 of the double-row tapered roller bearing 4; mounting a double-row tapered roller bearing 4 with a gear ring 3 and a locking disc on a machine base 5; mounting the generator assembly 1 to the stand 5; the wind wheel 2 is connected with an inner ring 41 of the double-row tapered roller bearing 4 through bolts.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (10)
1. A wind power generating set, comprising:
a wind wheel having a hub;
the gear ring is in transmission connection with the hub;
a bearing having an inner race and an outer race;
a generator assembly;
the novel wind driven generator is characterized in that at least two generator assemblies are arranged independently, at least two generator assemblies are in transmission connection with the gear ring, and the hub is fixed on the inner ring.
2. A wind power generation assembly according to claim 1 wherein the generator assembly comprises a step-up gearbox and a generator, the input and output of the step-up gearbox being drivingly connected to the ring gear and the generator respectively.
3. The wind generating set of claim 1, further comprising a housing, wherein the outer race is secured to the housing, and wherein the generator assembly is disposed outside of the housing.
4. The wind generating set according to claim 1, further comprising a base, a first locking portion and a second locking portion, wherein the first locking portion is fixed to the inner ring, the second locking portion is fixed to the base, the first locking portion and the second locking portion are provided with a first limiting hole and a second limiting hole, and the first limiting hole and the second limiting hole are used for allowing a tool to be inserted to limit the inner ring.
5. The wind turbine according to claim 4, wherein the ring gear and the first locking portion are fixed to both end surfaces of the inner ring, respectively.
6. The wind turbine of claim 4, wherein the first latch portion includes a latch plate, the second latch portion includes a latch shoe, and the tool is a latch pin.
7. The wind generating set according to claim 1, further comprising a reinforcing ring and a housing, wherein the reinforcing ring and the housing are fixed to both end surfaces of the outer ring, respectively.
8. The wind turbine of claim 1, wherein the ring gear is secured between the hub and the inner ring.
9. A wind park according to claim 1, wherein at least two of said generator assemblies are distributed along the circumference of said rotor.
10. The wind turbine of claim 1, wherein the bearing is a double row tapered roller bearing, a triple row cylindrical roller bearing, or a plain bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222837507.5U CN218669662U (en) | 2022-10-26 | 2022-10-26 | Wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222837507.5U CN218669662U (en) | 2022-10-26 | 2022-10-26 | Wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218669662U true CN218669662U (en) | 2023-03-21 |
Family
ID=85567456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222837507.5U Active CN218669662U (en) | 2022-10-26 | 2022-10-26 | Wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218669662U (en) |
-
2022
- 2022-10-26 CN CN202222837507.5U patent/CN218669662U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2009337789B2 (en) | Generator, nacelle, and mounting method of a nacelle of a wind energy converter | |
| US8414448B2 (en) | Gear system for wind turbine | |
| US20100219642A1 (en) | Wind turbine with single main bearing | |
| US20110143880A1 (en) | Drivetrain for generator in wind turbine | |
| US10215260B2 (en) | Integrative transmission chain of hybrid-drive wind turbine and a gearbox used by the transmission chain | |
| EP2604857B1 (en) | A modular gear unit for a wind turbine | |
| CN110080953B (en) | Wind power generation plant | |
| WO2023134268A1 (en) | Transmission chain of wind turbine generator system | |
| EP3662159B1 (en) | Planet carrier of a wind turbine gearbox with improved lubricant path | |
| CN113803216B (en) | Wind generating set | |
| US20180283362A1 (en) | Pitch Bearing for a Wind Turbine | |
| JP2009250213A (en) | Wind turbine generator | |
| CN218669662U (en) | Wind generating set | |
| WO2024119658A1 (en) | Megawatt-class wind power generating set | |
| CN111322197B (en) | Wind generating set and variable-pitch bearing assembly | |
| CN203248322U (en) | Semi-directly-driving wind power drive system | |
| US20230313876A1 (en) | Three-row roller slewing bearing-gearbox integrated structure | |
| CN218624514U (en) | Transmission and wind generating set | |
| CN217327558U (en) | Transmission chain structure of wind turbine generator and wind driven generator | |
| CN103216400A (en) | Half-direct-driven wind power transmission system | |
| CN219317562U (en) | Gear box and wind generating set | |
| CN216519534U (en) | High-power-density semi-direct-drive ultra-compact wind power gear box structure | |
| CN218408213U (en) | Main shaft connecting structure of fan | |
| CN114738473A (en) | Drive chain for wind driven generator and wind driven generator | |
| CN114962135A (en) | Wind turbine suitable for valleys and control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |