CN217652857U - Transmission assembly for connecting impeller shaft and main shaft of wind generating set - Google Patents
Transmission assembly for connecting impeller shaft and main shaft of wind generating set Download PDFInfo
- Publication number
- CN217652857U CN217652857U CN202121539796.XU CN202121539796U CN217652857U CN 217652857 U CN217652857 U CN 217652857U CN 202121539796 U CN202121539796 U CN 202121539796U CN 217652857 U CN217652857 U CN 217652857U
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- gear
- transmission assembly
- main shaft
- shaft
- impeller shaft
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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 utility model discloses a connect wind generating set's impeller shaft and transmission assembly of main shaft. One end of the transmission component is connected with the impeller shaft, the other end of the transmission component is connected with the main shaft, and the two ends of the transmission component are not positioned on the same horizontal plane. The transmission assembly comprises a gear transmission assembly and a chain transmission assembly, so that the transmission assembly and the generator assembly are placed at the bottom of the tower of the wind generating set, the requirements on the bearing capacity and the weight of the tower are greatly reduced, and the difficulty and the cost of installation and maintenance of the wind generating set are also greatly reduced.
Description
Technical Field
The invention relates to the technical field of wind generating sets, in particular to a transmission assembly for connecting an impeller shaft and a main shaft of a wind generating set.
Background
In the mainstream wind generating set at present, the main components comprise an impeller component, a speed change component, a generator component and a tower. The impeller component, the speed change component and the generator component are all connected on the same axis in a very compact manner, so that the shaft end of the impeller and the shaft end of the main shaft are coaxially connected. The impeller assembly, the speed change assembly and the generator assembly are all placed on top of the tower. With the increasing of the single machine capacity of the generator set, the weight of the speed change assembly and the generator assembly is also increasing, and the height of the tower is also increasing. Thus, on the one hand, there are higher demands on the load-bearing capacity and weight of the tower, and on the other hand, the difficulty and cost of installation and maintenance are also increased.
Therefore, a novel transmission assembly for connecting the impeller shaft and the main shaft is required to be designed, so that the speed change assembly and the generator assembly are moved away from the top of the tower and placed at the bottom of the tower, the requirements on the bearing capacity and weight of the tower are greatly reduced, and the difficulty and cost of installation and maintenance of the wind generating set are greatly reduced.
Disclosure of Invention
The invention aims to provide a transmission assembly for connecting an impeller shaft and a main shaft of a wind generating set, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a transmission assembly for connecting an impeller shaft and a main shaft of a wind generating set is characterized in that one end of the transmission assembly is connected with the impeller shaft (1), the other end of the transmission assembly is connected with the main shaft (9), and the two ends of the transmission assembly are not positioned on the same horizontal plane. The transmission assembly comprises a gear transmission and a chain transmission, wherein the gear transmission comprises a first gear (2), a second gear (3), a third gear (4) and a fourth gear (5), and the chain transmission comprises a first chain wheel (6), a second chain wheel (8) and a chain (7).
The first gear (2) is coaxially connected with the impeller shaft (1) and then is orthogonal to the axis line of the second gear (3) and is used for changing the transmission axial direction of the impeller shaft (1).
The shaft axis of the second gear (3) is coincident with the shaft axis of the yaw bearing, so that the yaw function can be exerted.
The third gear (4) is coaxially connected with the second gear (3) and then is orthogonal to the axis line of the fourth gear (5) for changing the axial direction of transmission.
The first chain wheel (6) is coaxially connected with the fourth gear (5) and then connected with the second chain wheel (8) through the chain (7) for increasing the center distance of the transmission shaft.
And the second chain wheel (8) is coaxially connected with the main shaft (9) so as to transmit the mechanical energy generated when the impeller assembly rotates to the speed change assembly and the generator assembly.
The transmission assembly for connecting the impeller shaft and the main shaft of the wind generating set is used for transmitting mechanical energy generated when the impeller assembly rotates to the speed change assembly and the generator assembly, and the speed change assembly and the generator assembly can be placed at the bottom of the tower, so that the requirements on the bearing capacity and the weight of the tower are greatly reduced, and the difficulty and the cost of installation and maintenance of the wind generating set are also greatly reduced.
Drawings
FIG. 1 is a schematic view of a drive assembly connecting an impeller shaft and a main shaft of a wind turbine generator system;
fig. 2 is a schematic diagram of main components of a wind generating set using the present invention.
Reference numerals:
1: an impeller shaft; 2: a first gear; 3: a second gear; 4: third step a gear; 5: a fourth gear;
6: a first sprocket; 8: a second sprocket; 7: a chain; 9: a main shaft;
10: an impeller assembly; 11: a transmission assembly; 12: a speed change assembly; 13: a generator assembly;
14: a tower.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and the detailed description. The following examples are intended to illustrate the invention but are not intended to limit it.
Referring to fig. 1, a schematic diagram of a transmission assembly for connecting an impeller shaft and a main shaft of a wind turbine generator system is shown, wherein one end of the transmission assembly (11) is connected with the impeller shaft (1), the other end is connected with the main shaft (9), and the two ends are not in the same horizontal plane. The transmission assembly (11) comprises a gear drive comprising a first gear (2), a second gear (3), a third gear (4) and a fourth gear (5), and a chain drive comprising a first sprocket (6), a second sprocket (8) and a chain (7).
The first gear (2), the second gear (3), the third gear (4) and the fourth gear (5) are all bevel gears with the same diameter and the same number of teeth.
The axial lead of the second gear (3) is coincided with the axial lead of the yaw bearing, so that the impeller assembly (10) can be enabled to change direction horizontally by 360 degrees by utilizing the yaw bearing, and wind energy from different directions can be utilized to the maximum extent.
The first chain wheel (6) and the second chain wheel (8) have the same diameter and the same tooth number, and the axial leads thereof are parallel to each other and are positioned on the same vertical plane, thereby ensuring the high efficiency and stability of transmission under the condition that the chain (7) is longer.
The second gear (3) is coaxially connected with the third gear (4) and is fixed on the inner wall of the tower through a bearing; the fourth gear (5) is coaxially connected with the first chain wheel (6) and is fixed on the inner wall of the tower through a bearing; the second chain wheel (8) is fixed on the inner wall of the tower through a bearing.
Referring to fig. 1 and 2, fig. 2 is a schematic diagram of main components of a wind turbine generator set using the present invention, and according to this embodiment, through the two sets of bevel gear drives and the one set of chain drives, the transmission efficiency loss in the whole process is small, and the difference between the rotation speed of the main shaft (9) and the rotation speed of the impeller shaft (1) can be maintained, so that the speed changing component (12) and the generator component (13) can be moved away from the top of the tower (14) and placed at the bottom of the tower (14), thereby greatly reducing the requirements on the bearing capacity and weight of the tower (14), and greatly reducing the difficulty and cost of installation and maintenance of the wind turbine generator set.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. A transmission assembly for connecting an impeller shaft and a main shaft of a wind generating set is characterized in that one end of the transmission assembly is connected with the impeller shaft (1), the other end of the transmission assembly is connected with the main shaft (9), and the two ends of the transmission assembly are not positioned on the same horizontal plane.
2. A transmission assembly connecting the impeller shaft and the main shaft of a wind turbine generator set according to claim 1, characterized by comprising a gear drive comprising a first gear (2), a second gear (3), a third gear (4) and a fourth gear (5), and a chain drive comprising a first sprocket (6), a second sprocket (8) and a chain (7).
3. A transmission assembly for connecting an impeller shaft and a main shaft of a wind turbine according to claim 2, characterized in that said first gear (2) is coaxially connected to said impeller shaft (1).
4. A transmission assembly for connecting the impeller shaft and the main shaft of a wind turbine generator according to claim 2, characterized in that said second gear (3) is orthogonal to the axis of said first gear (2).
5. A transmission assembly for connecting the impeller shaft and the main shaft of a wind turbine generator according to claim 2, characterized in that the axis of the second gear (3) coincides with the axis of the yaw bearing.
6. A transmission assembly for connecting the impeller shaft and the main shaft of a wind turbine generator according to claim 2, characterized in that said third gear (4) is coaxially connected to said second gear (3).
7. A transmission assembly for connecting the impeller shaft and the main shaft of a wind turbine generator according to claim 2, characterized in that said fourth gear (5) is orthogonal to the axis of said third gear (4).
8. A transmission assembly for connecting the impeller shaft and the main shaft of a wind turbine generator set according to claim 2, characterized in that said first sprocket (6) is coaxially connected to said fourth gear (5).
9. A transmission assembly for connecting the impeller shaft and the main shaft of a wind turbine generator according to claim 2, characterized in that said second sprocket (8) is connected to said first sprocket (6) by means of said chain (7).
10. A transmission assembly for connecting an impeller shaft and a main shaft of a wind turbine generator set according to claim 2, characterized in that said second sprocket (8) is coaxially connected to said main shaft (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121539796.XU CN217652857U (en) | 2021-07-06 | 2021-07-06 | Transmission assembly for connecting impeller shaft and main shaft of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121539796.XU CN217652857U (en) | 2021-07-06 | 2021-07-06 | Transmission assembly for connecting impeller shaft and main shaft of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217652857U true CN217652857U (en) | 2022-10-25 |
Family
ID=83659626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121539796.XU Active CN217652857U (en) | 2021-07-06 | 2021-07-06 | Transmission assembly for connecting impeller shaft and main shaft of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217652857U (en) |
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2021
- 2021-07-06 CN CN202121539796.XU patent/CN217652857U/en active Active
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