CN219436799U - Motor bearing cooling structure - Google Patents
Motor bearing cooling structure Download PDFInfo
- Publication number
- CN219436799U CN219436799U CN202320527676.0U CN202320527676U CN219436799U CN 219436799 U CN219436799 U CN 219436799U CN 202320527676 U CN202320527676 U CN 202320527676U CN 219436799 U CN219436799 U CN 219436799U
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- wind
- air
- fan
- motor bearing
- bearing
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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
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- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model relates to a bearing cooling structure, which belongs to the field of motor manufacturing and comprises a rotor and an end cover, wherein a fan is arranged on the rotor, a wind collecting cover, a wind guide pipe, a wind outlet pipe and an air outlet are arranged on the end cover, the wind collecting cover is fixed on the end cover, the fan is positioned in the wind collecting cover, one end of the wind guide pipe is connected with the wind collecting cover and is arranged at one end far away from the fan, the other end of the wind guide pipe is provided with the wind outlet pipe, the wind outlet position of the wind outlet pipe is close to the upper part of a motor bearing, and the air outlet is arranged around the motor bearing. According to the utility model, the non-driving end bearing is cooled by the cooling air of the slip ring fan, so that the temperature rise of the bearing during the operation of the motor is reduced, and the probability of faults such as locking and the like caused by heating of the bearing is reduced.
Description
Technical Field
The utility model relates to a bearing cooling structure, and belongs to the field of motor manufacturing.
Background
The bearing is a key part of the motor and is a connecting pivot of a motor stator and a motor rotor. The bearing temperature rise is caused by various factors such as poor assembly quality, oil shortage, bearing aging, poor heat dissipation effect and the like of the bearing assembly. The bearing temperature is increased to cause the bearing to be damaged frequently, even the shaft is locked to be out of order, the stator and the rotor can be possibly caused to be rubbed, the stator and the rotor are scrapped, and the safe operation of the motor is seriously endangered.
The large and medium-sized motor bearing is not provided with an independent heat dissipation device, and the temperature is reduced only by the circulation of an air path in the motor and the natural heat dissipation of a bearing assembly. The outside of the driving end is open, the space is larger, and the natural cooling effect is relatively good. The motor with the external slip ring and the slip ring cover has a narrow and closed non-drive end space and a poor cooling effect. Many motors, especially doubly fed wind generators, frequently experience a failure of the end bearing to increase in temperature.
Disclosure of Invention
The utility model aims to overcome the defects, and provides a motor bearing cooling structure which comprises a rotor and an end cover, wherein a fan is arranged on the rotor, a wind collecting cover, a wind guide pipe, a wind outlet barrel and an air outlet are arranged on the end cover, the wind collecting cover is fixed on the end cover, the fan is positioned in the wind collecting cover, one end of the wind guide pipe is connected with the wind collecting cover and is arranged at one end far away from the fan, the other end of the wind guide pipe is provided with the wind outlet barrel, the wind outlet position of the wind outlet barrel is close to the upper part of a motor bearing, and the air outlet is arranged around the motor bearing.
As a further improvement of the utility model, the air duct of the fan is separated from the outside through the screen plate.
As a further improvement of the utility model, the air outlet cylinder is connected with the air guide pipe through a fastener.
As a further development of the utility model, the fastening element is provided with a silicone rubber gasket for sealing.
As a further development of the utility model, the wind collection housing is arranged outside the slip ring housing.
As a further improvement of the utility model, the air guide pipe is welded with the air collecting hood.
The utility model has the beneficial effects that:
according to the utility model, the non-driving end bearing is cooled by the cooling air of the slip ring fan, so that the temperature rise of the bearing during the operation of the motor is reduced, and the probability of faults such as locking and the like caused by heating of the bearing is reduced.
Drawings
Fig. 1 is a cross-sectional view of the overall structure of the present utility model.
Reference numerals illustrate: 1. a fan; 2. a wind collecting hood; 3. an air guide pipe; 4. an air outlet cylinder; 5. an air outlet; 6. an end cap; 7. a slip ring cover; 8. a fastener; 9. a motor bearing; 10. a screen plate; 11. a silicone rubber pad; 12. a rotor.
Detailed Description
The utility model will be further described with reference to examples of embodiments in the accompanying drawings, in which:
as shown in the figure, the motor bearing cooling structure comprises a rotor 12 and an end cover 6, wherein a fan 1 is arranged on the rotor 12, a wind collecting cover 2, a wind guide pipe 3, a wind outlet barrel 4 and an air outlet 5 are arranged on the end cover 6, the wind collecting cover 2 is fixed on the end cover 6, the fan 1 is positioned in the wind collecting cover 2, one end of the wind guide pipe 3 is connected with the wind collecting cover 2 and is arranged at one end far away from the fan 1, the other end of the wind guide pipe 3 is provided with the wind outlet barrel 4, the wind outlet position of the wind outlet barrel 4 is close to the upper part of a motor bearing 9, and the air outlet 5 is arranged around the motor bearing 9.
The air duct of the fan 1 is separated from the outside through the screen plate 10, and the fan 1 sucks cooling air with lower temperature from the non-driving end of the motor through the screen plate 10.
The air outlet cylinder 4 is connected with the air guide pipe 3 through a fastening piece 8; the fastener is provided with a silicone gasket 11 for sealing.
The wind collecting cover 2 is arranged on the outer side of the slip ring cover 7, an air channel is arranged in the wind collecting cover 2, and cold wind is guided to the outer side of the slip ring cover 7 through the air channel.
The end part of the driving end of the wind collecting cover 2 is provided with a hole with proper size, the port of the wind guiding pipe 3 is in butt joint with the hole and welded firmly, no air leakage is ensured, the other end of the wind guiding pipe 3 is welded at the top of the slip ring cover 7 by using the same method, and the welding position is positioned right above the outer edge of the bearing outer cover of the non-driving end.
The working process of the utility model is as follows:
the fan 1 sucks cold air, the air outlet cylinder 4 blows the cold air in the air guide pipe 3 to the non-driving end motor bearing 9 through the air collecting cover 2, and the heat of the outer cover of the bearing is taken away by the cooling air, so that the integral cooling of the bearing system is realized. The shape and position of the air outlet cylinder 4 can be properly adjusted according to actual conditions so as to achieve an ideal cooling effect.
The utility model enables the non-driving end bearing of the wind driven generator to be cooled. Considering that the structure of an external fan is adopted for cooling the slip ring of a few motors, the air inlets for collecting cold air by the air guide pipes can be different in size and style, so that the collected air quantity reaches the requirement of use.
Claims (6)
1. The utility model provides a motor bearing cooling structure, includes rotor (12) and end cover (6), a serial communication port, be provided with fan (1) on rotor (12), set up collection fan housing (2), guide duct (3), play dryer (4) and air exit (5) on end cover (6), collection fan housing (2) are fixed on end cover (6), fan (1) are located collection fan housing (2), the one end of guide duct (3) with collection fan housing (2) are connected and set up the one end of keeping away from fan (1), the other end of guide duct (3) is provided with out dryer (4), the air-out position of play dryer (4) is close to the upper portion of motor bearing (9), air exit (5) encircle motor bearing (9) and set up.
2. A motor bearing cooling structure according to claim 1, characterized in that the air duct of the fan (1) is separated from the outside by a screen (10).
3. A motor bearing cooling structure according to claim 1, characterized in that the air outlet duct is connected with the air guide duct (3) by means of a fastening piece (8).
4. A motor bearing cooling structure according to claim 3, characterized in that the fastening member (8) is provided with a silicone gasket (11) for sealing.
5. A motor bearing cooling structure according to claim 1, characterized in that the wind collecting housing (2) is arranged outside the slip ring housing (7).
6. A motor bearing cooling structure according to claim 1, characterized in that the air duct (3) is welded to the air collection hood (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320527676.0U CN219436799U (en) | 2023-03-17 | 2023-03-17 | Motor bearing cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320527676.0U CN219436799U (en) | 2023-03-17 | 2023-03-17 | Motor bearing cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219436799U true CN219436799U (en) | 2023-07-28 |
Family
ID=87332903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320527676.0U Active CN219436799U (en) | 2023-03-17 | 2023-03-17 | Motor bearing cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219436799U (en) |
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2023
- 2023-03-17 CN CN202320527676.0U patent/CN219436799U/en active Active
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| GR01 | Patent grant |