CN219692234U - Planetary rotating frame structure of wind power gear box - Google Patents
Planetary rotating frame structure of wind power gear box Download PDFInfo
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- CN219692234U CN219692234U CN202320974488.2U CN202320974488U CN219692234U CN 219692234 U CN219692234 U CN 219692234U CN 202320974488 U CN202320974488 U CN 202320974488U CN 219692234 U CN219692234 U CN 219692234U
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- rotating frame
- wind power
- hollow cavity
- planetary
- gear box
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- 230000005611 electricity Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model discloses a planetary rotating frame structure of a wind power gear box, which comprises the wind power gear box, wherein the input end of the wind power gear box is provided with a planetary rotating frame, a hollow cavity is arranged in the planetary rotating frame, a main shaft is arranged in the hollow cavity, the main shaft penetrates through the hollow cavity and is in interference fit connection with the hollow cavity, the inner diameter of an inlet of the hollow cavity is smaller than that of an outlet of the hollow cavity.
Description
Technical Field
The utility model relates to the field of wind power gear box structures, in particular to a planetary rotating frame structure of a wind power gear box.
Background
Wind energy is a representative one of renewable energy sources, and it is important to protect the environment and maintain ecological balance, and to reduce the dependence on conventional energy sources and to improve energy structures. The propulsion of the wind power source promotes the development of the fan, and the wind power gearbox is used as a key component of the fan and is important for the normal operation of the whole system. The working principle of the fan is that wind energy is converted into kinetic energy by the blades and is transmitted to the generator through the transmission system, the generator generates electric energy and is input to the power grid, the blades are driven by the wind energy to rotate, so that a main shaft connected with the blades is driven to rotate, the main shaft is connected with the wind power gear box, and the kinetic energy converted from the wind energy is transmitted to the inside of the wind power gear box, and the connection of the main shaft and the wind power gear box is critical.
In the installation process of the wind power gear box and the main shaft, an assembled worker often finds that the rotating frame at the input end of the wind power gear box can shrink due to the installation of various parts, so that the main shaft cannot be installed to the bottom when being installed into the wind power gear box, and the stability and the safety of the whole structure are seriously influenced.
Disclosure of Invention
The utility model aims to: the utility model aims to provide a planetary rotating frame structure of a wind power gear box, which can ensure that a main shaft can be thoroughly installed in the wind power gear box when the wind power gear box and the main shaft are installed, and improve the stability and safety of installation.
The technical scheme is as follows: the utility model discloses a planetary rotating frame structure of a wind power gear box, which comprises the wind power gear box, wherein a planetary rotating frame is arranged at the input end of the wind power gear box, a hollow cavity is formed in the planetary rotating frame, a main shaft is arranged in the hollow cavity, the main shaft penetrates through the hollow cavity and is in interference fit connection with the hollow cavity, and the inner diameter of an inlet of the hollow cavity is smaller than the inner diameter of an outlet of the hollow cavity.
Preferably, the hollow cavity comprises a stable section and an expansion section, the stable section is arranged on one side of an inlet of the hollow cavity, the expansion section is arranged on one side of an outlet of the hollow cavity, the inner diameter of the stable section is kept unchanged and is consistent with the inner diameter of the inlet, and the inner diameter of the expansion section is in an expansion state towards the outlet.
Because the external pressure born by the planetary rotating frame is concentrated on one side close to the wind power gear box and the other side is not pressurized before the locking disc is installed, the mode that the stable section and the expansion section are combined is set, and the processing difficulty can be reduced.
Preferably, the length of the expansion section is less than the plateau length.
The main shrinkage of planetary rotating frame before the main shaft installation produces in being close to wind-powered electricity generation gear box department, consequently only need to process shrink section department can, and the length that control expansion section is less than the length of stationary segment accords with actual demand to can further reduce the degree of difficulty of processing.
Preferably, the increase curve of the inner diameter of the expansion section is an exponential increase curve.
Preferably, a bearing seat is arranged at the joint of the planetary rotating frame and the wind power gear box, a bearing is arranged on the bearing seat, and an oil slinger is arranged on the planetary rotating frame, which faces one side of the inlet of the planetary rotating frame, of the bearing seat.
The oil slinger is provided to prevent leakage of oil leaking from the bearing direction.
Preferably, the oil slinger is in interference fit connection with the planet carrier.
Preferably, a locking disc is arranged on the outer wall of the planetary rotating frame, and the locking disc is connected with the planetary rotating frame in an interference fit manner.
The locking disc is designed for locking the main shaft and the planetary rotating frame.
The beneficial effects are that: according to the utility model, through the arrangement of the expansion section, the interference effect between the oil slinger and the bearing and the planetary rotating frame is ensured after the oil slinger and the bearing are mounted on the planetary rotating frame, so that the pressure on the planetary rotating frame causes the inner diameter of the expansion section to shrink to the inner diameter of the stationary section, thereby being matched with the outer diameter of the main shaft, enabling the main shaft to be completely assembled into the planetary rotating frame, avoiding the condition that the main shaft cannot be completely assembled, and ensuring the stability and the safety of the whole equipment after assembly.
Drawings
FIG. 1 is a side cross-sectional view of the utility model without a spindle installed;
FIG. 2 is a side cross-sectional view of the present utility model with a spindle installed;
FIG. 3 is an axial cross-sectional view of the present utility model;
FIG. 4 is a graph of the expansion segment inner diameter increase for a 5MW wind turbine gearbox model of the present utility model.
Detailed Description
The utility model will be further illustrated with reference to specific examples.
As shown in fig. 1-3, in this embodiment, an input end of a wind power gear box 1 is provided with a planetary rotating frame 2, a hollow cavity 3 is arranged in the planetary rotating frame 2, a main shaft 4 is arranged in the hollow cavity 3, the main shaft 4 penetrates through the hollow cavity 3 from left to right and is in interference fit connection with the hollow cavity 3, and an inner diameter of an inlet of the hollow cavity 3 is smaller than an inner diameter of an outlet of the hollow cavity.
In the embodiment, a bearing seat 5 is arranged at the joint of the planetary rotary frame 2 and the wind power gear box 1, a bearing 6 is arranged on the bearing seat 5, an oil slinger 7 is arranged on the planetary rotary frame 2 on one side of the bearing seat 5 facing the inlet of the planetary rotary frame 2, and the oil slinger 7 is connected with the planetary rotary frame 2 in an interference fit manner, so that leakage of oil from the direction of the bearing 6 is prevented.
In the embodiment, a locking disc 8 is arranged on the outer wall of the planetary rotary frame 2, the locking disc 8 is in interference fit connection with the planetary rotary frame 2, and the locking main shaft 4 and the planetary rotary frame 2 are locked.
In this embodiment, the hollow cavity includes a stationary segment and an expansion segment, wherein the stationary segment is disposed at an inlet side of the hollow cavity 3, the expansion segment is disposed at an outlet side of the hollow cavity 3, an inner diameter of the stationary segment is kept unchanged and is consistent with an inner diameter of the inlet, and an inner diameter of the expansion segment is in an expanded state toward the outlet.
Because the external pressure applied to the planetary rotor 2 is concentrated on one side close to the wind power gear box 1 and the other side is not pressurized before the locking disc 8 is installed, the difficulty of processing can be reduced by setting a mode that a stationary section and an expanding section are combined.
In this embodiment, since the main shrinkage of the planetary rotor frame 2 before the installation of the main shaft 4 is generated near the wind power gear box 1, only the shrinkage section is required to be processed, and the length of the expansion section is controlled to be smaller than that of the stationary section to meet the actual requirement, and the processing difficulty can be further reduced.
In this embodiment, the growth curve of the inner diameter of the expansion section is an exponential growth curve, and the closer to the outlet of the hollow cavity, the faster the inner diameter increases.
When the utility model is applied to a 5MW wind power gear box model, the outer diameter of the main shaft is 796mm, the matching length of the main shaft inserted into the planetary rotating frame is 540mm, the hollow cavity of the planetary rotating frame is processed within the range of 240mm behind the matching length, namely the length of the expansion section in the hollow cavity is 240mm, and the outer diameter of the expansion section is gradually increased from 796.0006mm on the left side to 796.048mm through pre-turning, as shown in a growing curve chart in fig. 4.
According to the utility model, through the arrangement of the expansion section, the interference effect between the oil slinger 7 and the bearing 6 and the planetary rotating frame 2 is ensured after the oil slinger 7 and the bearing 6 are mounted on the planetary rotating frame 2, so that the pressure on the planetary rotating frame 2 causes the inner diameter of the expansion section to shrink to the inner diameter of the stationary section, thereby being matched with the outer diameter of the main shaft 4, the main shaft 4 can be completely assembled into the planetary rotating frame 2, the condition that the main shaft cannot be completely assembled is avoided, and the stability and the safety of the whole assembled equipment are ensured.
Claims (7)
1. The utility model provides a planet revolving rack structure of wind-powered electricity generation gear box, including wind-powered electricity generation gear box (1), its characterized in that: the wind power gear box is characterized in that the input end of the wind power gear box (1) is provided with a planetary rotating frame (2), a hollow cavity (3) is formed in the planetary rotating frame (2), a main shaft (4) is arranged in the hollow cavity (3), the main shaft (4) penetrates through the hollow cavity (3) and is connected with the hollow cavity (3) in an interference fit mode, and the inner diameter of an inlet of the hollow cavity (3) is smaller than the inner diameter of an outlet of the hollow cavity.
2. A planetary rotor structure of a wind power gearbox according to claim 1, wherein: the hollow cavity (3) comprises a stable section and an expansion section, the stable section is arranged on one side of an inlet of the hollow cavity (3), the expansion section is arranged on one side of an outlet of the hollow cavity (3), the inner diameter of the stable section is kept unchanged and is consistent with the inner diameter of the inlet, and the inner diameter of the expansion section is in an expansion state towards the outlet.
3. A planetary rotor structure of a wind power gearbox according to claim 2, characterized in that: the length of the expansion section is less than the plateau length.
4. A planetary rotor structure of a wind power gearbox according to claim 2, characterized in that: the increase curve of the inner diameter of the expansion section is an exponential increase curve.
5. A planetary rotor structure of a wind power gearbox according to claim 1, wherein: the planetary rotating frame is characterized in that a bearing seat (5) is arranged at the joint of the planetary rotating frame (2) and the wind power gear box (1), a bearing (6) is arranged on the bearing seat (5), and an oil slinger (7) is arranged on the planetary rotating frame (2) on one side of the bearing seat (5) facing the inlet of the planetary rotating frame (2).
6. The planetary rotor structure of a wind power gearbox according to claim 5, wherein: the oil slinger (7) is connected with the planet rotating frame (2) in an interference fit mode.
7. A planetary rotor structure of a wind power gearbox according to claim 1, wherein: the planetary rotating frame is characterized in that a locking disc (8) is arranged on the outer wall of the planetary rotating frame (2), and the locking disc (8) is connected with the planetary rotating frame (2) in an interference fit mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320974488.2U CN219692234U (en) | 2023-04-26 | 2023-04-26 | Planetary rotating frame structure of wind power gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320974488.2U CN219692234U (en) | 2023-04-26 | 2023-04-26 | Planetary rotating frame structure of wind power gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219692234U true CN219692234U (en) | 2023-09-15 |
Family
ID=87944601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320974488.2U Active CN219692234U (en) | 2023-04-26 | 2023-04-26 | Planetary rotating frame structure of wind power gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219692234U (en) |
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2023
- 2023-04-26 CN CN202320974488.2U patent/CN219692234U/en active Active
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| GR01 | Patent grant | ||
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Address after: No.99 Furong Zhongsan Road, Xishan Economic and Technological Development Zone, Wuxi City, Jiangsu Province, 214000 Patentee after: Delijia Transmission Technology (Jiangsu) Co.,Ltd. Country or region after: China Address before: No.99 Furong Zhongsan Road, Xishan Economic and Technological Development Zone, Wuxi City, Jiangsu Province, 214000 Patentee before: DELIJIA TRANSMISSION TECHNOLOGY (JIANGSU) Co.,Ltd. Country or region before: China |