CN216691344U - High-integration-level high-speed wind generating set - Google Patents
High-integration-level high-speed wind generating set Download PDFInfo
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- CN216691344U CN216691344U CN202122566943.9U CN202122566943U CN216691344U CN 216691344 U CN216691344 U CN 216691344U CN 202122566943 U CN202122566943 U CN 202122566943U CN 216691344 U CN216691344 U CN 216691344U
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- fixedly connected
- main shaft
- transmission assembly
- planet carrier
- generator
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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
Abstract
The invention discloses a high-integration high-speed wind generating set, which is characterized by comprising the following components: one end of the main shaft is fixedly connected with the impeller; the transmission assembly comprises an input end and an output end, and the input end of the transmission assembly is fixedly connected with the other end of the main shaft; and the input shaft of the generator is fixedly connected with the output end of the transmission assembly. Compared with the prior art, the transmission chain has higher integration level, reduces the primary planet carrier main bearing, the main shaft is directly and fixedly connected with the primary planet carrier, improves the torque transmission stability, simultaneously, the transmission assembly is fixedly connected with the main shaft, and the gear box is fixedly connected with the bearing seat, thereby omitting the elastic support and the torsion arm of the gear box, having lower cost, lighter weight and higher economical efficiency.
Description
Technical Field
The invention relates to the field of wind power generation, in particular to a high-integration-degree high-speed wind generating set.
Background
In a wind generating set, a main transmission chain is a core component of the wind generating set, and the performance of the main transmission chain directly influences the overall cost of a fan, the running reliability of the set and the market competitiveness. At present, the main layout forms of a main transmission chain with a gear box of a large-scale wind power generation set are divided into the following types: the first type is that the gear box is separated from the main bearing seat, the gear box can adopt a high-speed gear box or a medium-speed gear box (semi-direct drive type), and the gear box can be separated from the generator or integrated into a whole; the second type is that the gear box is integrated with the main bearing, and the gear box body is rigidly connected with the main bearing seat, so that the size of the transmission chain is longer, the length of the transmission chain is reduced, the speed ratio of the gear box is lower, and the generator and the gear box are generally integrated into a whole to form a semi-direct-drive generator set.
For example, a "wind generating set and transmission device thereof" disclosed in chinese patent literature, whose publication number is CN112963314A, includes a transmission shaft system, a gear box and a generator, wherein the front end of the transmission shaft system is connected to the hub of the wind wheel of the wind generating set, the input end of the gear box is connected to the rear end of the transmission shaft system, and the output end of the gear box is connected to the input end of the generator; the drive shaft system and the gear box share one bearing and/or the gear box and the generator share one bearing.
The transmission chain form of the high-speed generator set has heavy weight due to insufficient integration level of the transmission chain; the semi-direct-drive generator set has the defects that because the gear box is integrated into a whole, the risk of oil leakage of the gear box exists, the current of a generator shaft causes the electric corrosion of a bearing of the gear box and the electromagnetic force of the generator acts on the bearing of the gear box, so that the service life of the bearing fails in advance, and the like.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a high-integration-degree high-speed wind generating set. The input ends of the main shaft and the gear set are integrated together, and transmission stability is improved. Meanwhile, through the matching design of the damping and rigidity of the hydraulic shock absorber assembly and the unit, the floating amount of the high-speed shaft of the gearbox in the application process is reduced, the eccentricity of the high-speed shaft of the gearbox and the shaft of the generator is within the deviation rectifying capacity range of the coupler, and the influence of the current and the electromagnetic force of the generator on the high-speed bearing of the gearbox is isolated.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-integration high-speed wind generating set is characterized by comprising: one end of the main shaft is fixedly connected with the impeller; the transmission assembly comprises an input end and an output end, and the input end of the transmission assembly is fixedly connected with the other end of the main shaft; the input shaft of the generator is fixedly connected with the output end of the transmission assembly; the main shaft is arranged in the bearing seat, and a bearing is arranged between the bearing seat and the main shaft.
Compared with the prior art, the transmission chain has higher integration level, reduces the primary planet carrier main bearing, the main shaft is directly and fixedly connected with the primary planet carrier, improves the torque transmission stability, simultaneously, the transmission assembly is fixedly connected with the main shaft, and the gear box is fixedly connected with the bearing seat, thereby omitting the elastic support and the torsion arm of the gear box, having lower cost, lighter weight and higher economical efficiency.
Preferably, the transmission assembly comprises a first-stage planet wheel, a first-stage sun wheel and a first-stage planet carrier, the first-stage planet carrier is the input end of the transmission assembly, and the first-stage planet carrier is fixedly connected with the main shaft.
Preferably, the primary planet carrier is fixedly connected with the main shaft through a flange.
The main shaft is fixedly connected with the first-stage planet carrier through the flange, the torque transmission capacity of the main shaft can be improved, the main bearing is convenient to pre-tighten, and bolt assembly and maintenance are facilitated. The flange can be in any structural form according to different requirements of transmitted torque, such as an I-shaped flange or a single flange.
Preferably, the main shaft is in a conical barrel shape, the flange comprises two parallel end faces, namely a first end face and a second end face, the inner edge of the first end face is fixedly connected with the outer edge of the second end face through a rigid connecting piece, the first end face is fixedly connected with one end, close to the transmission assembly, of the main shaft, and the second end face is fixedly connected with the primary planet carrier.
The flange designed in the scheme has the advantages of simple structure, high strength and light weight.
Preferably, the high-integration high-speed wind turbine generator system further comprises: the impeller comprises a front main bearing and a rear main bearing, wherein the front main bearing is fixed on the side face of the main shaft close to the impeller, the rear main bearing is fixed on the side face of the main shaft close to the transmission assembly, a space ring is arranged between the rear main bearing and the first end face of the flange, and the space ring is sleeved on the main shaft.
The left side of the flange realizes the pre-tightening of the rear main bearing through the space ring, so that the operation is convenient and the pre-tightening effect is good.
Preferably, the transmission assembly further comprises a two-stage planetary wheel assembly and/or a multi-stage planetary wheel assembly and/or a one-stage parallel stage assembly.
The transmission assembly can adopt a plurality of planetary gears and a parallel stage to realize different speed ratios.
Preferably, the output end of the transmission assembly is connected with the input shaft of the generator through a coupling.
Preferably, the high-integration high-speed wind turbine generator system further comprises: the gear box, the transmission assembly sets up inside the gear box, second grade planet wheel subassembly includes the second grade planet carrier, the second grade planet carrier with the output shaft fixed connection of one-level sun gear, the one end that the second grade planet carrier is close to the main shaft is fixed with the gear box through second grade planet windward bearing, the one end that the second grade planet carrier is close to the generator is fixed with the gear box through second grade planet downwind bearing.
Preferably, a plurality of shock absorbers are arranged on the periphery of the gear box at intervals.
Compared with the prior art of the generator set with the medium-speed gearbox, the eccentric amount of the high-speed shaft of the gearbox and the eccentric amount of the generator shaft are controlled by adding the shock absorber of the gearbox, the high-speed gearbox can be adopted, the design requirement of the high-speed transmission chain of the large-scale wind generator set is met, the influence of the current of the generator shaft and the electromagnetic force of the generator on the high-speed bearing of the gearbox is avoided, the risk of oil leakage of the gearbox is avoided, the weight and the size of electrical components are reduced, the cost of the electrical components is reduced, and the economic performance of the generator set is improved.
Preferably, a damper support is fixed on the outer side of the gear box, the inner side of the damper support is attached to the outer profile of the gear box, the outer profile of the damper support is circular, the plurality of dampers are uniformly arranged on the outer edge of the damper support at intervals, and the damper support is provided with a plurality of hollow areas.
The circular shape bumper shock absorber support can be better transmission power, make the shake of sudden change evenly transmit each bumper shock absorber on, the fretwork region that sets up on the bumper shock absorber support can provide the deformation space, prevents to shake and causes the damage deformation to the reduction box when too big.
Therefore, the invention has the following beneficial effects: (1) compared with the prior art, the transmission chain has higher integration level, reduces the primary planet carrier main bearing, the main shaft is directly and fixedly connected with the primary planet carrier, the torque transmission stability is improved, meanwhile, the transmission assembly is fixedly connected with the main shaft, and the gear box is fixedly connected with the bearing seat, so that the elastic support and the torsion arm of the gear box are omitted, the cost is lower, the weight is lighter, and the economy is higher; (2) the main shaft is fixedly connected with the first-stage planet carrier through the flange, the torque transmission capacity of the main shaft can be improved, the main bearing is convenient to pre-tighten, and bolt assembly and maintenance are facilitated. The flange can be in any structural form according to different requirements of transmitted torque, such as an I-shaped flange or a single flange; (3) compared with the prior art of the generator set with the medium-speed gearbox, the eccentric amount of the high-speed shaft of the gearbox and the eccentric amount of the generator shaft are controlled by adding the shock absorber of the gearbox, the high-speed gearbox can be adopted, the design requirement of the high-speed transmission chain of the large-scale wind generator set is met, the influence of the current of the generator shaft and the electromagnetic force of the generator on the high-speed bearing of the gearbox is avoided, the risk of oil leakage of the gearbox is avoided, the weight and the size of electrical components are reduced, the cost of the electrical components is reduced, and the economic performance of the generator set is improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
FIG. 2 is a schematic view of a damper mounting structure on the outside of a gear box.
In the figure, a main shaft 1, a front main bearing 2, a bearing seat 3, a rear main bearing 4, a flange 5, a gear box 6, a first-stage planet carrier 7, a first-stage planet carrier 8, a first-stage planet carrier pin shaft 9, a first-stage planet carrier bearing 10, a first-stage sun gear 11, a second-stage planet windward bearing 12, a second-stage planet downwind bearing 13, an output end 14, a coupler 15, a generator 16, a generator elastic support 17, a bearing seat and gear box connecting bolt 18, a flange and first-stage planet carrier connecting bolt 19, a flange and main shaft connecting bolt 20, a second-stage planet carrier 21, a spacer 22, a first transverse shock absorber 23, a second transverse shock absorber 24, a first vertical shock absorber 25, a second vertical shock absorber 26, a gear box body 27 and a shock absorber support 28 are arranged.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
The first embodiment is as follows:
in the embodiment shown in fig. 1 and 2, a high integration high speed wind turbine generator system is characterized in that the high integration high speed wind turbine generator system comprises: the main shaft 1, one end of the said main shaft is fixedly connected with impeller; the transmission assembly comprises an input end and an output end 14, and the input end of the transmission assembly is fixedly connected with the other end of the main shaft; the input shaft of the generator 16 is fixedly connected with the output end of the transmission assembly; and the main shaft is arranged in the bearing seat 3.
The transmission assembly comprises a first-stage planet wheel 8, a first-stage sun wheel 11 and a first-stage planet carrier 7, the first-stage planet carrier is the input end of the transmission assembly, and the first-stage planet carrier is fixedly connected with the main shaft.
The primary planet carrier is fixedly connected with the main shaft through a flange 5.
The shape of main shaft is the toper tubbiness, the flange includes two parallel terminal surfaces, is first terminal surface and second terminal surface respectively, the inner edge of first terminal surface through rigid connection spare with the outer fringe fixed connection of second terminal surface, first terminal surface with the main shaft is close to the one end fixed connection of transmission assembly, the second terminal surface with one-level planet carrier fixed connection.
The high-integration high-speed wind generating set further comprises: the impeller comprises a front main bearing 2 and a rear main bearing 4, wherein the front main bearing is fixed on the side face of the main shaft close to the impeller, the rear main bearing is fixed on the side face of the main shaft close to the transmission assembly, a space ring 22 is arranged between the rear main bearing and the first end face of the flange, and the space ring is sleeved on the main shaft.
The transmission assembly also comprises a two-stage planetary wheel assembly and/or a multi-stage planetary wheel assembly and/or a one-stage parallel stage assembly.
The output end of the transmission assembly is connected with the input shaft of the generator through a coupler 15.
The high-integration high-speed wind generating set further comprises: the gear box 6, the transmission assembly sets up inside the gear box, second grade planet wheel subassembly includes second grade planet carrier 21, the second grade planet carrier with the output shaft fixed connection of one-level sun gear, the one end that the second grade planet carrier is close to the main shaft is fixed with the gear box through second grade planet windward bearing 12, the one end that the second grade planet carrier is close to the generator is fixed with the gear box through second grade planet downwind bearing 13.
A plurality of shock absorbers are arranged at intervals on the periphery of the gear box and comprise a first transverse shock absorber 23 and a second transverse shock absorber 24 which are transversely arranged and a first vertical shock absorber 25 and a second vertical shock absorber 26 which are vertically arranged.
Compared with the prior art, the transmission chain has higher integration level, reduces the primary planet carrier main bearing, the main shaft is directly and fixedly connected with the primary planet carrier, improves the torque transmission stability, simultaneously, the transmission assembly is fixedly connected with the main shaft, and the gear box is fixedly connected with the bearing seat, thereby omitting the elastic support and the torsion arm of the gear box, having lower cost, lighter weight and higher economical efficiency.
The main shaft is fixedly connected with the first-stage planet carrier through the flange, the torque transmission capacity of the main shaft can be improved, the main bearing is convenient to pre-tighten, and bolt assembly and maintenance are facilitated. The flange can be in any structural form according to different requirements of transmitted torque, such as an I-shaped flange or a single flange.
The flange designed in the scheme has the advantages of simple structure, high strength and light weight. The main shaft is in a conical barrel shape, so that torque can be better transmitted, and the main shaft can be well matched with a flange for connection.
The left side of the flange realizes the pre-tightening of the rear main bearing through the space ring, so that the operation is convenient and the pre-tightening effect is good.
The transmission component can adopt a plurality of planetary gears and a parallel stage to realize different speed ratios.
Compared with the prior art of the generator set with the medium-speed gearbox, the eccentric amount of the high-speed shaft of the gearbox and the eccentric amount of the generator shaft are controlled by adding the shock absorber of the gearbox, the high-speed gearbox can be adopted, the design requirement of the high-speed transmission chain of the large-scale wind generator set is met, the influence of the current of the generator shaft and the electromagnetic force of the generator on the high-speed bearing of the gearbox is avoided, the risk of oil leakage of the gearbox is avoided, the weight and the size of electrical components are reduced, the cost of the electrical components is reduced, and the economic performance of the generator set is improved.
Example two:
the difference from the first embodiment is that: the gearbox outer side is fixed with bumper shock absorber support 28, bumper shock absorber support inboard laminating the profile of gearbox outside, bumper shock absorber support profile is circular, the even interval of a plurality of bumper shock absorbers sets up in the outer fringe of bumper shock absorber support, the bumper shock absorber support is equipped with a plurality of fretwork regions.
The circular shape bumper shock absorber support can be better transmission power, make the shake of sudden change evenly transmit each bumper shock absorber on, the fretwork region that sets up on the bumper shock absorber support can provide the deformation space, prevents to shake and causes the damage deformation to the reduction box when too big.
Therefore, the invention has the following beneficial effects: (1) compared with the prior art, the transmission chain has higher integration level, reduces the primary planet carrier main bearing, the main shaft is directly and fixedly connected with the primary planet carrier, the torque transmission stability is improved, meanwhile, the transmission assembly is fixedly connected with the main shaft, and the gear box is fixedly connected with the bearing seat, so that the elastic support and the torsion arm of the gear box are omitted, the cost is lower, the weight is lighter, and the economy is higher; (2) the main shaft is fixedly connected with the first-stage planet carrier through the flange, the torque transmission capacity of the main shaft can be improved, the main bearing is convenient to pre-tighten, and bolt assembly and maintenance are facilitated. The flange can be in any structural form according to different requirements of transmitted torque, such as an I-shaped flange or a single flange; (3) compared with the prior art of the generator set with the medium-speed gearbox, the eccentric amount of the high-speed shaft of the gearbox and the eccentric amount of the generator shaft are controlled by adding the shock absorber of the gearbox, the high-speed gearbox can be adopted, the design requirement of the high-speed transmission chain of the large-scale wind generator set is met, the influence of the current of the generator shaft and the electromagnetic force of the generator on the high-speed bearing of the gearbox is avoided, the risk of oil leakage of the gearbox is avoided, the weight and the size of electrical components are reduced, the cost of the electrical components is reduced, and the economic performance of the generator set is improved.
Claims (7)
1. A high-integration high-speed wind generating set is characterized by comprising: one end of the main shaft is fixedly connected with the impeller; the transmission assembly comprises an input end and an output end, and the input end of the transmission assembly is fixedly connected with the other end of the main shaft; the input shaft of the generator is fixedly connected with the output end of the transmission assembly; a gearbox, the drive assembly disposed inside the gearbox; the main shaft is arranged in the bearing seat, and a bearing is arranged between the bearing seat and the main shaft; the gearbox periphery interval is provided with a plurality of bumper shock absorbers, including the first horizontal bumper shock absorber of horizontal setting, the horizontal bumper shock absorber of second and the vertical first vertical bumper shock absorber, the vertical bumper shock absorber of vertical setting.
2. The high-integration high-speed wind generating set according to claim 1, wherein the transmission assembly comprises a first-stage planet gear, a first-stage sun gear and a first-stage planet carrier, the first-stage planet carrier is an input end of the transmission assembly, and the first-stage planet carrier is fixedly connected with the main shaft.
3. The high-integration high-speed wind generating set of claim 2, wherein the primary planet carrier is fixedly connected with the main shaft through a flange.
4. The high-integration high-speed wind generating set according to claim 3, wherein the flange comprises two parallel end surfaces, namely a first end surface and a second end surface, an inner edge of the first end surface is fixedly connected with an outer edge of the second end surface through a rigid connecting piece, the first end surface is fixedly connected with one end of the main shaft close to the transmission assembly, and the second end surface is fixedly connected with the primary planet carrier.
5. A highly integrated high speed wind energy generator according to any of claims 1 to 4 wherein said transmission assembly further comprises a secondary planet wheel assembly and/or a multi-stage planet wheel assembly and/or a primary parallel stage assembly.
6. The highly integrated high speed wind turbine generator system of claim 5, wherein the output end of the transmission assembly is connected to the input shaft of the generator through a coupling.
7. The highly integrated high speed wind generating set according to claim 1, wherein the gear box is provided with a plurality of shock absorbers at intervals around the periphery thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122566943.9U CN216691344U (en) | 2021-10-25 | 2021-10-25 | High-integration-level high-speed wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122566943.9U CN216691344U (en) | 2021-10-25 | 2021-10-25 | High-integration-level high-speed wind generating set |
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| Publication Number | Publication Date |
|---|---|
| CN216691344U true CN216691344U (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122566943.9U Active CN216691344U (en) | 2021-10-25 | 2021-10-25 | High-integration-level high-speed wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216691344U (en) |
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2021
- 2021-10-25 CN CN202122566943.9U patent/CN216691344U/en active Active
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