CN111456913B - A semi-direct drive wind turbine generator set - Google Patents
A semi-direct drive wind turbine generator setInfo
- Publication number
- CN111456913B CN111456913B CN202010462276.7A CN202010462276A CN111456913B CN 111456913 B CN111456913 B CN 111456913B CN 202010462276 A CN202010462276 A CN 202010462276A CN 111456913 B CN111456913 B CN 111456913B
- Authority
- CN
- China
- Prior art keywords
- base
- semi
- main shaft
- drive wind
- generator
- 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
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D15/00—Transmission of mechanical power
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/96—Preventing, counteracting or reducing vibration or noise
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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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to the technical field of wind power generation, and discloses a semi-direct-drive wind generating set. The semi-direct-drive wind generating set comprises a main shaft system, a gear box, a generator and a base. The main shaft system comprises a main shaft and a base body, wherein the main shaft is rotatably arranged in the base body in a penetrating manner, and the gear box comprises a box body, and the front end of the box body is rigidly connected with the rear end of the base body. The generator comprises a shell, the front end of the shell is rigidly connected with the rear end of the gear box, and the gear box and the generator form an integrated structure. The base and the integrated structure are both rigidly arranged on the base. According to the semi-direct-drive wind turbine generator system, the box body is rigidly connected with the rear end of the base body, and then the base body and the integrated system formed by the gear box and the generator are rigidly arranged on the base, so that the base directly bears the total weight of the main shaft system and the integrated system, the weight of the generator can be prevented from being directly attached to the box body, the vibration of the gear box is prevented, the transmission balance is ensured, and the safety coefficient of the transmission chain is improved.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a semi-direct-drive wind generating set.
Background
The traditional doubly-fed wind power gear box generally adopts a fixing mode of elastic support of a torque arm, and the half-direct-drive gear box is generally integrated with a generator to form an integrated structure, namely, the weight of the generator is directly added on the box body of the gear box. Because total weight increases and the focus is back after the integration, if still adopt traditional torque arm elastic support's fixed mode, then focus position is cantilever structure for the elastic support point to lead to the gear box vibration easily, influence the equilibrium of transmission, reduce the factor of safety of drive chain.
Therefore, a new type of semi-direct-drive wind turbine generator system is needed to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a semi-direct-drive wind generating set, which can prevent the weight of a generator from being directly attached to a box body of a gear box, prevent the gear box from vibrating, ensure the balance of transmission and improve the safety coefficient of the whole transmission chain.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a semi-direct drive wind turbine generator system comprising:
The main shaft system comprises a main shaft and a base body, wherein the main shaft is rotatably arranged in the base body in a penetrating manner;
the gearbox comprises a box body, wherein the front end of the box body is rigidly connected with the rear end of the seat body;
the generator comprises a shell, wherein the front end of the shell is rigidly connected with the rear end of the box body, and the gearbox and the generator form an integrated structure;
The base, the pedestal with the integrated structure is all rigidity setting is in on the base.
As the optimal scheme of the half direct-drive wind generating set, the gear box further comprises an elastic coupling, the gear box further comprises a low-speed-stage transmission module, and the main shaft is in transmission connection with the low-speed-stage transmission module through the elastic coupling.
As the optimal scheme of the semi-direct-drive wind generating set, the elastic coupler is a hydraulic elastic coupler.
As the preferable scheme of the semi-direct-drive wind generating set, the gear box is a large megawatt gear box.
As a preferable scheme of the semi-direct-drive wind generating set, the box body is cylindrical.
As the preferable scheme of the semi-direct-drive wind generating set, the front end of the box body is provided with a box body flange, the rear end of the base body is provided with a base body flange, and the box body flange is rigidly connected with the base body flange.
As the optimal scheme of the semi-direct-drive wind generating set, the box body flange is rigidly connected with the base body flange through bolts.
As a preferable scheme of the semi-direct-drive wind generating set, the main shaft system further comprises a bearing, and the bearing is arranged between the main shaft and the base body.
As the preferable scheme of the semi-direct-drive wind generating set, the number of the bearings is two.
As the preferable scheme of the semi-direct-drive wind generating set, the wind turbine generator further comprises a hub and a wind wheel system, wherein the rear end of the hub is connected with the front end of the main shaft, and the wind wheel system is connected with the hub.
The beneficial effects of the invention are as follows:
According to the semi-direct-drive wind turbine generator system, the front end of the box body in the gear box is rigidly connected with the rear end of the base body in the main shaft system, the rear end of the box body is rigidly connected with the front end of the shell in the generator, and then the base body and the integrated system consisting of the gear box and the generator are rigidly arranged on the base, so that the base directly bears the total weight of the main shaft system, the gear box and the generator, the weight of the generator can be prevented from being directly attached to the box body of the gear box, vibration of the gear box is prevented, the balance of transmission is ensured, and the safety coefficient of the whole transmission chain is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.
FIG. 1 is a schematic diagram of a part of a semi-direct drive wind turbine generator system according to an embodiment of the present invention;
Fig. 2 is a schematic structural diagram of a box in a semi-direct-drive wind generating set according to an embodiment of the present invention.
In the figure:
1-main shaft system, 11-main shaft, 12-seat body, 121-seat body flange and 13-bearing;
2-gear box, 21-box body, 211-box body flange and 22-low-speed transmission module;
31-shell;
4-a base;
A 5-elastic coupling;
6-wheel hub.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only, or to distinguish between different structures or components, and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected or detachably connected, mechanically connected or electrically connected, directly connected or indirectly connected through intermediaries, or may be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, the present embodiment provides a semi-direct-drive wind generating set, which includes a main shaft system 1, a gear box 2, a generator 3, and a base 4. The spindle system 1 comprises a spindle 11 and a base 12, wherein the spindle 11 is rotatably arranged in the base 12 in a penetrating manner. The gear case 2 includes a case 21, and a front end of the case 21 is rigidly connected to a rear end of the housing 12. The generator 3 comprises a housing 31, the front end of the housing 31 is rigidly connected with the rear end of the gear box 2, and the gear box 2 and the generator 3 form an integrated structure. The base 12 and the integrated structure are both rigidly arranged on the base 4.
According to the semi-direct-drive wind generating set provided by the embodiment, the front end of the box body 21 in the gear box 2 is rigidly connected with the rear end of the base body 12 in the main shaft system 1, the rear end of the box body 21 is rigidly connected with the front end of the shell 31 in the generator 3, and then the base body 12 and the integrated system consisting of the gear box 2 and the generator 3 are rigidly arranged on the base 4, so that the base 4 directly bears the total weight of the main shaft system 1, the gear box 2 and the generator 3, the weight of the generator 3 can be prevented from being directly attached to the box body 21 of the gear box 2, the vibration of the gear box 2 is prevented, the balance of transmission is ensured, and the safety coefficient of the whole transmission chain is improved. In addition, since the gear case 2 is fixed to the base 4 through the case 21, the deformation will be more uniform after being loaded, thereby contributing to an increase in the safety factor of the gear case 2.
Preferably, the semi-direct-drive wind generating set provided by the embodiment further comprises an elastic coupling 5, the gear box 2 further comprises a low-speed transmission module 22, and the main shaft 11 is in transmission connection with the low-speed transmission module 22 through the elastic coupling 5. By providing the elastic coupling 5, a part of the impact load from the main shaft 11 can be offset, and the misalignment between the main shaft and the low-speed transmission module 22 can be compensated, so that a larger optimization space is provided for the design and the selection of the main shaft 11, and in addition, the weight of the joint of the main shaft 11 and the low-speed transmission module 22 is mainly borne by the base 12, so that the bearing of the low-speed transmission module 22 only bears the weight of the low-speed transmission module 22, which has great advantages for the selection of the bearing of the low-speed transmission module 22 and the control of the cost. Specifically, in the present embodiment, the elastic coupling 5 is a hydraulic elastic coupling.
Specifically, the gear box 2 provided in the present embodiment is a large megawatt gear box. According to the semi-direct-drive wind generating set provided by the embodiment, through the cooperation of the main shaft system 1, the gear box 2, the generator 3, the base 4 and the elastic coupling 5, a supporting mode of outer rigidity and inner elasticity is formed, the influence of large additional load generated by a large megawatt gear box on the service life of a low-speed end bearing of the gear box 2 and the rigidity of the gear box 2 is avoided, so that the safety coefficient of the gear box 2 and the whole transmission chain can be increased, and the cost is reduced.
Preferably, in the present embodiment, the case 21 is cylindrical. Compared with the traditional fixing mode of elastic support of the torque arm, the supporting square block can not be arranged on the torque arm when the supporting mode of elastic support of the external rigidity and the internal elasticity is adopted, so that the whole box 21 can be designed into a cylinder shape, and the space of a cabin can be saved more conveniently.
Specifically, as shown in fig. 1 and 2, the front end of the case 21 is provided with a case flange 211, the rear end of the base 12 is provided with a base flange 121, and the case flange 211 is rigidly connected to the base flange 121. Further, the case flange 211 and the seat flange 121 are rigidly connected by bolts.
Preferably, the spindle system 1 provided in this embodiment further includes a bearing 13, and the bearing 13 is disposed between the spindle 11 and the base 12. Specifically, in the present embodiment, the number of bearings 13 is two, and two bearings 13 are located at the front end and the rear end of the main shaft 11, respectively.
Preferably, the semi-direct-drive wind generating set provided in this embodiment further includes a hub 6 and a wind wheel system, wherein the rear end of the hub 6 is connected with the front end of the main shaft 11, and the wind wheel system is connected with the hub 6. I.e. the transmission between the rotor system and the main shaft 11 is achieved by means of the hub 6.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (9)
1. A semi-direct drive wind generating set, comprising:
The main shaft system comprises a main shaft and a base body, wherein the main shaft is rotatably arranged in the base body in a penetrating manner;
the gearbox comprises a box body, wherein the front end of the box body is rigidly connected with the rear end of the seat body;
the generator comprises a shell, wherein the front end of the shell is rigidly connected with the rear end of the box body, and the gearbox and the generator form an integrated structure;
The base and the integrated structure are rigidly arranged on the base, so that the weight of the generator can be prevented from being directly added on the box body of the gear box;
The gear box further comprises a low-speed transmission module, and the main shaft is in transmission connection with the low-speed transmission module through the elastic coupling;
through the cooperation of the main shaft system, the gear box, the generator, the base and the elastic coupling, a supporting mode of external rigidity and internal elasticity is formed.
2. A semi-direct drive wind power generation set according to claim 1, wherein the elastic coupling is a hydraulic elastic coupling.
3. A semi-direct drive wind power generation set according to any of claims 1-2, wherein the gearbox is a megawatt gearbox.
4. A semi-direct drive wind power generation set according to any of claims 1-2, wherein the housing is cylindrical.
5. A semi-direct drive wind generating set according to any of claims 1-2, wherein a box flange is provided at the front end of the box, a base flange is provided at the rear end of the base, and the box flange is rigidly connected to the base flange.
6. The semi-direct drive wind generating set according to claim 5, wherein the box flange and the base flange are rigidly connected by bolts.
7. A semi-direct drive wind power generation set according to any of claims 1-2, wherein the main shaft system further comprises a bearing, which bearing is arranged between the main shaft and the housing.
8. A semi-direct drive wind power generation set according to claim 7, wherein the number of bearings is two.
9. A semi-direct drive wind power generation set according to any of claims 1-2, further comprising a hub and a wind wheel system, the rear end of the hub being connected to the front end of the main shaft, the wind wheel system being connected to the hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010462276.7A CN111456913B (en) | 2020-05-27 | 2020-05-27 | A semi-direct drive wind turbine generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010462276.7A CN111456913B (en) | 2020-05-27 | 2020-05-27 | A semi-direct drive wind turbine generator set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111456913A CN111456913A (en) | 2020-07-28 |
| CN111456913B true CN111456913B (en) | 2025-11-14 |
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ID=71677966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010462276.7A Active CN111456913B (en) | 2020-05-27 | 2020-05-27 | A semi-direct drive wind turbine generator set |
Country Status (1)
| Country | Link |
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| CN (1) | CN111456913B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103210215A (en) * | 2010-10-18 | 2013-07-17 | 维斯塔斯风力系统有限公司 | Wind turbine power transmission system |
| CN107035621A (en) * | 2017-06-14 | 2017-08-11 | 山东中车风电有限公司 | A kind of half-direct-drive wind driven generator group transmission system |
| CN212225452U (en) * | 2020-05-27 | 2020-12-25 | 南京高速齿轮制造有限公司 | Semi-direct-drive wind generating set |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9041237B2 (en) * | 2012-02-24 | 2015-05-26 | General Electric Company | Wind turbine drive train and wind turbine |
-
2020
- 2020-05-27 CN CN202010462276.7A patent/CN111456913B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103210215A (en) * | 2010-10-18 | 2013-07-17 | 维斯塔斯风力系统有限公司 | Wind turbine power transmission system |
| CN107035621A (en) * | 2017-06-14 | 2017-08-11 | 山东中车风电有限公司 | A kind of half-direct-drive wind driven generator group transmission system |
| CN212225452U (en) * | 2020-05-27 | 2020-12-25 | 南京高速齿轮制造有限公司 | Semi-direct-drive wind generating set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111456913A (en) | 2020-07-28 |
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