CN219139258U - Speed limiting device of wind driven generator - Google Patents
Speed limiting device of wind driven generator Download PDFInfo
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- CN219139258U CN219139258U CN202320255379.5U CN202320255379U CN219139258U CN 219139258 U CN219139258 U CN 219139258U CN 202320255379 U CN202320255379 U CN 202320255379U CN 219139258 U CN219139258 U CN 219139258U
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- fan shaft
- speed
- limiting device
- generator
- hydraulic rod
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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 speed limiting device of a wind driven generator, which comprises a generator cabin, wherein a fan shaft connected with external fan blades is arranged in the middle of the generator cabin, main hydraulic rods capable of pushing a speed reducing piece out of the fan shaft to reduce speed are fixedly arranged at the top and the bottom of the inner wall of the generator cabin, auxiliary hydraulic rods capable of reducing the speed of the fan shaft for the second time are fixedly arranged at the left end and the right end of the inner wall of the generator cabin, and speed reducing pieces capable of reducing the speed of the fan shaft are arranged at the bottoms of the auxiliary hydraulic rods of the main hydraulic rods and the auxiliary hydraulic rods. The device solves the problems that the stability of the traditional speed limiting device is not high, the traditional speed limiting device is provided with a plurality of devices capable of decelerating the fan shaft, when the wind power engine encounters strong wind, the fan shaft cannot be decelerated effectively by the group of deceleration devices, the rotating speed of the wind power generator is too high, damage is caused by the generator, and the device is suitable for being widely popularized and used.
Description
Technical Field
The utility model relates to the field of safety auxiliary devices of efficient wind driven generators, in particular to a speed limiting device of a wind driven generator.
Background
The wind driven generator is an electric device which converts wind energy into mechanical work, the mechanical work drives a rotor to rotate and finally outputs alternating current, the wind driven generator generally comprises a wind wheel, a generator (comprising a device), a direction regulator (tail wing), a tower, a speed limiting safety mechanism, an energy storage device and other components, the working principle of the wind driven generator is simple, the wind wheel rotates under the action of wind force, kinetic energy of wind is converted into mechanical energy of a wind wheel shaft, and the generator rotates to generate electricity under the driving of the wind wheel shaft.
At present, when a wind driven generator encounters strong wind, the speed limiting device inside the wind driven generator limits the speed of the wind driven generator, but the stability of the traditional speed limiting device is not high, the traditional speed limiting device is provided with a plurality of devices which can reduce the speed of the fan shaft, when the wind driven generator encounters strong wind, the fan shaft cannot be effectively reduced by the speed reducing device, so that the rotating speed of the wind driven generator is too high, damage is caused by the generator, and the wind driven generator speed limiting device is not provided.
Disclosure of Invention
The utility model mainly aims to provide a speed limiting device of a wind driven generator, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a wind-driven generator overspeed device tensioner, includes the generator storehouse, generator storehouse mid-mounting has the fan axle of being connected with outside flabellum, the equal fixed mounting in generator storehouse inner wall top and bottom has the main hydraulic stem that can release the piece laminating fan axle to slow down, the equal fixed mounting in generator storehouse inner wall left end and right-hand member has the vice hydraulic stem that can carry out secondary speed reduction to the fan axle, the piece that can slow down to the fan axle is all installed to main hydraulic stem and vice rod end bottom, and main hydraulic stem can release the piece under general speed limit requirement, carries out the speed reduction operation to the fan axle of wind-driven generator, and when wind-driven generator runs into strong wind, vice hydraulic stem can release, cooperates main hydraulic stem to carry out dual speed reduction to the fan axle of wind-driven generator, can effectually solve the problem that single group decelerator in the background art can't be better carries out speed limiting efficiency to the fan axle of wind-driven generator higher.
Further, the controller that can respond to fan axle speed has been buried outward to generator cabinet left side wall, and controller electric connection main hydraulic stem and vice hydraulic stem, and the rotational speed to wind-driven generator that can be better through the controller is responded to whether stretch out according to the vice hydraulic stem of rotational speed control, more intelligent.
Further, the connecting arm is fixedly connected with the top of the speed reducing piece, the semiconductor refrigerating piece capable of radiating the fan shaft is arranged at the bottom of the right end of the connecting arm, the conductive copper blocks are fixedly connected to the bottom of the semiconductor refrigerating piece in a fitting mode, the conductive copper blocks are separated from the outer wall of the fan shaft at small intervals, the semiconductor refrigerating piece extending to the outer wall of the fan shaft through the connecting arm can efficiently cool the fan shaft which is rubbed by the speed reducing piece and generates heat, the fan shaft is influenced by the speed reducing piece which is effectively reduced, and the fan shaft quality of the wind driven generator is guaranteed.
Further, the top of the semiconductor refrigerating sheet is fixedly connected with a radiating plate for radiating the semiconductor refrigerating sheet in a bonding mode, a water pipe capable of improving the radiating efficiency of the semiconductor refrigerating sheet is buried in the radiating plate, the water pipe is S-shaped, and when the semiconductor refrigerating sheet is refrigerated through the radiating plate and the water pipe therein, heat generated by the back plate can be radiated, so that the refrigerating efficiency of the semiconductor refrigerating sheet can be ensured.
Further, the water tank for storing the cooling liquid is arranged at the top of the cooling plate, the top of the water tank is fixedly connected to the bottom of the right end of the connecting arm, the semiconductor refrigerating sheet is arranged at the bottom of the right end of the connecting arm through the water tank, the water pump capable of guiding the cooling liquid out into the water pipe input end is arranged at the bottom of the water tank, the water pipe output end is connected to the right side of the front wall of the water tank in an intercommunicating manner, the cooling liquid in the water pipe can circularly flow through the water tank, the cooling efficiency of the cooling liquid to the backboard of the semiconductor refrigerating sheet is guaranteed, and the cooling efficiency of the semiconductor refrigerating sheet to the fan shaft of the wind driven generator is improved.
Compared with the prior art, the utility model has the following beneficial effects:
the main hydraulic rod can push out the speed reducing piece under the general speed limiting requirement, the fan shaft of the wind driven generator is subjected to speed reducing operation, when the wind driven generator encounters high wind rotating speed, the controller can control the auxiliary hydraulic rod to push out, and the auxiliary hydraulic rod is matched with the main hydraulic rod to perform double speed reduction on the fan shaft of the wind driven generator, so that the problem that a single-group speed reducing device in the background art cannot reduce the speed of the fan shaft of the wind driven generator well can be effectively solved, and the speed limiting efficiency of the wind driven generator is higher.
The semiconductor refrigerating sheet extending to the outer wall of the fan shaft through the connecting arm can efficiently cool the fan shaft which is rubbed by the speed reducing sheet and heats, the influence of the speed reducing sheet on the fan shaft is effectively reduced, and the fan shaft quality of the wind driven generator is ensured.
The heat dissipation plate and the water pipe buried in the heat dissipation plate and connected in the water tank in an intercommunicating manner can dissipate heat generated by the back plate when the semiconductor refrigerating sheet refrigerates, so that the refrigerating efficiency of the semiconductor refrigerating sheet can be ensured.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a speed limiting device of a wind driven generator.
Fig. 2 is a partial enlarged view of a portion a in fig. 1 of a speed limiting device of a wind driven generator according to the present utility model.
Fig. 3 is a schematic diagram of the internal detail structure of the water tank of the speed limiting device of the wind driven generator.
Fig. 4 is a schematic diagram of a detailed structure of a cooling plate of a speed limiting device of a wind driven generator in a depression view.
In the figure: 1. a generator cabin; 101. a fan shaft; 201. a main hydraulic rod; 202. an auxiliary hydraulic rod; 3. a speed reducing plate; 301. a connecting arm; 4. a semiconductor refrigeration sheet; 401. conducting copper blocks; 5. a heat dissipation plate; 501. a water pipe; 6. a water tank; 601. a water pump; 7. and a controller.
Description of the embodiments
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in fig. 1-4, a speed limiting device for a wind driven generator comprises a generator cabin 1, a fan shaft 101 connected with external fan blades is installed in the middle of the generator cabin 1, a main hydraulic rod 201 capable of pushing out a speed reducing piece 3 to be attached to the fan shaft 101 for speed reduction is fixedly installed at the top and the bottom of the inner wall of the generator cabin 1, an auxiliary hydraulic rod 202 capable of carrying out secondary speed reduction on the fan shaft 101 is fixedly installed at the left end and the right end of the inner wall of the generator cabin 1, a speed reducing piece 3 capable of carrying out speed reduction on the fan shaft 101 is installed at the bottoms of the auxiliary hydraulic rod 202 and the main hydraulic rod 201, a controller 7 capable of sensing the speed of the fan shaft 101 is buried outside the left side wall of the generator cabin 1, the controller 7 is electrically connected with the main hydraulic rod 201 and the auxiliary hydraulic rod 202, when a daily wind driven generator carries out speed limiting, the speed reducing piece 3 is controlled by the controller 7, normal speed reducing operation is carried out on the fan shaft 101 of the wind driven generator, and when the wind driven generator encounters strong wind, the controller 7 senses overhigh rotating speed, the controller 7 controls the auxiliary hydraulic rod 201 to push out speed reduction on the fan shaft 3 to be matched with the fan shaft 101, and the speed limiting efficiency of the speed of the fan shaft 101 is guaranteed.
The semiconductor cooling fin (4) is fixedly connected with the connecting arm (301) at the top of the speed reducing fin (3), the semiconductor cooling fin (4) capable of radiating heat to the fan shaft (101) is installed at the bottom of the right end of the connecting arm (301), the conductive copper block (401) is fixedly connected to the bottom of the semiconductor cooling fin (4) at a small distance from the outer wall of the fan shaft (101), the heat radiating plate (5) is fixedly connected to the top of the semiconductor cooling fin (4) at a certain distance, the water pipe (501) capable of improving the heat radiating efficiency of the semiconductor cooling fin (4) is buried in the heat radiating plate (5), the water pipe (501) is in an S shape, the water tank (6) for storing heat radiating liquid is installed at the top of the heat radiating plate (5), the top of the water tank (6) is fixedly connected to the bottom of the right end of the connecting arm (301), the water pump (601) capable of guiding cooling liquid into the input end of the water pipe (501) is installed at the bottom of the water tank (6), the water pipe (6), and the output end of the water pipe (501) is connected to the right side of the front wall of the water pipe (6), when the main hydraulic rod (201) or the auxiliary hydraulic rod (202) stretches out to perform speed reducing operation, the heat radiating fin (201) and the heat radiating fin (3) is buried in the side of the semiconductor cooling fin (3) to the semiconductor cooling fin (3), the heat radiating fin (101) is also effectively influenced by the heat radiating efficiency of the fan (101), and the heat radiating fin (101) is buried in the heat radiating fin (3) by the heat radiating fin (3) and the heat radiating fin (101), and the heat radiating efficiency of the semiconductor cooling fin (101) is effectively influenced by the heat radiating fin (101) in the heat radiating fin, and the heat radiating fin (101.
When the wind driven generator is used for limiting speed, the controller 7 controls the main hydraulic rod 201 to push out the speed reducing plate 3, normal speed reducing operation is carried out on the fan shaft 101 of the wind driven generator, when the wind driven generator encounters strong wind, the controller 7 controls the auxiliary hydraulic rod 202 to push out the speed reducing plate 3 at the front end of the auxiliary hydraulic rod when the wind driven generator encounters strong wind and senses that the rotating speed of fan blades is too high, the auxiliary hydraulic rod 202 is matched with the main hydraulic rod 201 to carry out double speed reducing on the fan shaft 101 of the wind driven generator, the safety and speed limiting efficiency of the wind driven generator are ensured, when the main hydraulic rod 201 or the auxiliary hydraulic rod 202 is stretched out to carry out speed reducing operation, the semiconductor refrigerating plate 4 beside the speed reducing plate 3 is stretched out together, the semiconductor refrigerating plate 4 is adhered to the surface of the fan shaft 101, the fan shaft 101 is cooled by the characteristics of the speed reducing plate 3, the influence of the fan shaft 101 is effectively reduced, the heat radiating plate 5 at the top of the speed reducing plate is led out to the heat radiating plate 501 in the water tank 6 through the water pipe 501, the heat radiating liquid in the water pipe input end is matched with the water tank 601, the semiconductor refrigerating plate 4 can effectively cool the semiconductor refrigerating plate 4, and the efficiency of the semiconductor refrigerating plate 4 can be improved.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a aerogenerator overspeed device tensioner, includes generator cabinet (1), its characterized in that: the novel electric generator is characterized in that a fan shaft (101) connected with an external fan blade is arranged in the middle of the electric generator cabin (1), a main hydraulic rod (201) capable of pushing out a speed reducing piece (3) to be attached to the fan shaft (101) for speed reduction is fixedly arranged at the top and the bottom of the inner wall of the electric generator cabin (1), an auxiliary hydraulic rod (202) capable of carrying out secondary speed reduction on the fan shaft (101) is fixedly arranged at the left end and the right end of the inner wall of the electric generator cabin (1), and speed reducing pieces (3) capable of carrying out speed reduction on the fan shaft (101) are arranged at the bottoms of the main hydraulic rod (201) and the auxiliary hydraulic rod (202).
2. The wind turbine speed limiting device of claim 1, wherein: a controller (7) capable of sensing the speed of the fan shaft (101) is buried outside the left side wall of the generator bin (1), and the controller (7) is electrically connected with a main hydraulic rod (201) and an auxiliary hydraulic rod (202).
3. The wind turbine speed limiting device of claim 1, wherein: the semiconductor cooling fin (4) capable of radiating the fan shaft (101) is arranged at the bottom of the right end of the connecting arm (301), the bottom of the semiconductor cooling fin (4) is fixedly connected with a conductive copper block (401) in a fitting mode, and the conductive copper block (401) is separated from the outer wall of the fan shaft (101) at a small distance.
4. A wind turbine speed limiting device according to claim 3, wherein: the top of the semiconductor refrigerating sheet (4) is fixedly connected with a radiating plate (5) for radiating the semiconductor refrigerating sheet (4), a water pipe (501) capable of improving the radiating efficiency of the semiconductor refrigerating sheet (4) is buried in the radiating plate (5), and the water pipe (501) is S-shaped.
5. The wind turbine speed limiting device of claim 4, wherein: the water tank (6) for storing cooling liquid is arranged at the top of the cooling plate (5), the top of the water tank (6) is fixedly connected to the bottom of the right end of the connecting arm (301), the semiconductor refrigerating sheet (4) is arranged at the bottom of the right end of the connecting arm (301) through the water tank (6), the water pump (601) capable of guiding cooling liquid out to the input end of the water pipe (501) is arranged in the bottom of the water tank (6), and the output end of the water pipe (501) is connected in the right side of the front wall of the water tank (6) in an intercommunication mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320255379.5U CN219139258U (en) | 2023-02-20 | 2023-02-20 | Speed limiting device of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320255379.5U CN219139258U (en) | 2023-02-20 | 2023-02-20 | Speed limiting device of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219139258U true CN219139258U (en) | 2023-06-06 |
Family
ID=86601900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320255379.5U Active CN219139258U (en) | 2023-02-20 | 2023-02-20 | Speed limiting device of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219139258U (en) |
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2023
- 2023-02-20 CN CN202320255379.5U patent/CN219139258U/en active Active
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