CN211370608U - Brake device of wind driven generator - Google Patents
Brake device of wind driven generator Download PDFInfo
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- CN211370608U CN211370608U CN201922352405.2U CN201922352405U CN211370608U CN 211370608 U CN211370608 U CN 211370608U CN 201922352405 U CN201922352405 U CN 201922352405U CN 211370608 U CN211370608 U CN 211370608U
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- fixedly connected
- generator
- impeller
- cabin
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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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Abstract
The utility model discloses a brake device of a wind driven generator, which comprises a cabin, wherein a generator and a gear speed increasing box are respectively arranged at two sides of the bottom of the inner wall of the cabin, a control device is arranged at the top of the generator, a shell is fixedly connected at one side of the cabin, a rotating shaft is fixedly connected at one side of the gear speed increasing box far away from the generator, the other end of the rotating shaft sequentially penetrates through the cabin and the shell and extends to the inside of the shell, an impeller is rotatably connected to the surface of one end of the rotating shaft extending to the inside of the shell, a vertical plate is fixedly connected to the surface of the rotating shaft, a connecting rod is driven to move through a first electric telescopic rod, a transmission block is driven to move by the connecting rod, and a push plate is driven by the transmission block to move, so that the impeller can rotate when the wind speed is too high, and protecting the wind driven generator.
Description
Technical Field
The utility model relates to a aerogenerator specifically is a aerogenerator's brake equipment.
Background
The wind power generator is an electric power device which converts wind energy into mechanical work, and the mechanical work drives a rotor to rotate so as to finally output alternating current. The wind driven generator generally comprises components such as a wind wheel, a generator, a direction regulator, a tower frame, a speed-limiting safety mechanism, an energy storage device and the like, the working principle of the wind driven generator is simple, the wind wheel rotates under the action of wind power, the kinetic energy of the wind is converted into mechanical energy of a wind wheel shaft, the generator is driven by the wind wheel shaft to rotate to generate electricity, in a broad sense, the wind energy is also solar energy, so that the wind driven generator can be also called as a wind driven generator, and the wind driven generator is a heat energy utilization generator taking the sun as a heat source and taking the atmosphere as a working medium.
However, in the running process of the wind driven generator, the rotating speed of the impeller of the wind driven generator is increased along with the wind speed, and once the rotating speed is too high, the generator is easily burnt out, so that loss is caused. Accordingly, those skilled in the art have provided a brake apparatus for a wind turbine to solve the problems set forth in the background art.
Disclosure of Invention
An object of the utility model is to provide a aerogenerator's brake equipment to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a brake device of a wind driven generator comprises a cabin, wherein a generator and a gear speed increasing box are respectively arranged on two sides of the bottom of the inner wall of the cabin, a control device is arranged at the top of the generator, a shell is fixedly connected to one side of the cabin, a rotating shaft is fixedly connected to one side of the gear speed increasing box, which is far away from the generator, the other end of the rotating shaft sequentially penetrates through the cabin and the shell and extends into the shell, an impeller is rotatably connected to the surface of one end, which extends into the shell, of the rotating shaft, a vertical plate is fixedly connected to the surface of the rotating shaft, a first electric telescopic rod is fixedly connected to one side of the vertical plate, a connecting rod is rotatably connected to the first electric telescopic rod through a rotating block, a transmission block is fixedly connected to the back of the connecting rod, a push plate and a pull plate are respectively fixedly connected to two, and the surface of the impeller is fixedly connected with a limiting frame.
As a further aspect of the present invention: controlling means includes the installing frame, the bottom of installing frame and the top fixed connection of generator, there is the baffle bottom between the installing frame inner wall both sides through sliding tray sliding connection, it has the helium that the volume is one sixty-eighteen of installing frame to fill between the bottom of baffle and the bottom of installing frame inner wall, the top fixedly connected with ejector pin of baffle to the top of ejector pin runs through the installing frame and extends to the outside of installing frame, first contact switch is installed to the one end that the ejector pin extends to the installing frame outside, second contact switch is installed to the bottom of cabin inner wall.
As a further aspect of the present invention: the equal fixedly connected with of both sides at baffle top seals the piece, two one side that seals the piece looks and all with the inner wall swing joint of sliding tray.
As a further aspect of the present invention: the impeller comprises a rotating shaft, and is characterized in that a fixed plate is fixedly connected to one side of the surface of the rotating shaft, a second electric telescopic rod is fixedly connected to one side of the fixed plate, a sliding plate is fixedly connected to the other end of the second electric telescopic rod, a clamping rod is fixedly connected to the other side of the sliding plate, and the other end of the clamping rod is clamped with the surface of the impeller through a fixed hole.
As a further aspect of the present invention: the one end of pivot is rotated and is connected with the mounting panel to the top and the bottom of mounting panel all with the top and the bottom fixed connection of shell inner wall.
As a further aspect of the present invention: and a heat conducting block is arranged at the bottom of the mounting frame.
Compared with the prior art, the beneficial effects of the utility model are that:
1. drive the connecting rod motion through first electric telescopic handle, the connecting rod drives the motion of transmission piece, the transmission piece drives the push pedal motion, thereby make the impeller rotate when the wind speed is too big, make the corner cut of impeller and wind change, thereby reduce the promotion of wind to the impeller, accomplish the purpose of brake, protect aerogenerator, and it is more level and smooth to carry out pivot brake deceleration curve through changing impeller angle, can not cause great moment of torsion to the countershaft, improve pivot and brake equipment's life, avoid brake equipment to change frequently.
2. Through controlling means's setting, when the generator temperature reaches the predetermined temperature, the helium heat expands, promote the baffle motion, the baffle drives the ejector pin motion, thereby make first contact switch and second contact switch closed, switch on first electric telescopic handle, reach automatic braking's purpose, need not artifical monitoring, facilitate the use, drive the kelly motion through second electric telescopic handle again, make kelly and impeller joint, thereby make the impeller can fix when need not angle of adjustment, ensure the normal use of impeller.
Drawings
Fig. 1 is a schematic overall structure diagram of a brake device of a wind turbine generator.
Fig. 2 is a partially enlarged structural view of a brake device of a wind turbine generator at a position a in fig. 1.
Fig. 3 is a schematic structural diagram of a control device in a brake device of a wind driven generator.
In the figure: 1. a nacelle; 2. a generator; 3. a control device; 31. installing a frame; 32. a partition plate; 33. helium gas; 34. a top rod; 35. a first contact switch; 36. a second contact switch; 4. a gear speed increasing box; 5. a housing; 6. a rotating shaft; 7. a vertical plate; 8. a first electric telescopic rod; 9. a limiting frame; 10. a connecting rod; 11. a transmission block; 12. pushing the plate; 13. pulling a plate; 14. An impeller; 15. a fixing plate; 16. a second electric telescopic rod; 17. a sliding plate; 18. a clamping rod; 19. mounting a plate; 20. a heat conducting block; 21. and (6) sealing the block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, in an embodiment of the present invention, a brake apparatus for a wind power generator includes a nacelle 1, a generator 2 and a gear box 4 are respectively disposed on two sides of a bottom of an inner wall of the nacelle 1, a control device 3 is disposed on a top of the generator 2, a housing 5 is fixedly connected to one side of the nacelle 1, a rotating shaft 6 is fixedly connected to one side of the gear box 4 away from the generator 2, and another end of the rotating shaft 6 sequentially penetrates through the nacelle 1 and the housing 5 and extends into the housing 5, an impeller 14 is rotatably connected to a surface of the rotating shaft 6 extending to an end inside the housing 5, the number of the impeller 14 is three, and components connected to each impeller 14 are the same as a connection mode, a vertical plate 7 is fixedly connected to the surface of the rotating shaft 6, a first electric telescopic rod 8 is fixedly connected to one side of the vertical plate 7, the first electric telescopic, the back of the connecting rod 10 is fixedly connected with a transmission block 11, the two sides of the surface of the impeller 14 are respectively and fixedly connected with a push plate 12 and a pull plate 13, and one side of the push plate 12 opposite to the pull plate 13 is movably connected with the transmission block 11, the surface of the impeller 14 is fixedly connected with a limit frame 9, the first electric telescopic rod 8 drives the connecting rod 10 to move, the connecting rod 10 drives the transmission block 11 to move, the transmission block 11 drives the push plate 12 to move, thereby leading the impeller 14 to rotate when the wind speed is overlarge, leading the cutting angle of the impeller 14 and the wind to be changed, reducing the push of the wind to the impeller 14, completing the purpose of braking, the wind driven generator is protected, the braking and speed reduction curve of the rotating shaft 6 is smoother by changing the angle of the impeller 14, larger torque cannot be caused to the rotating shaft 6, the service lives of the rotating shaft 6 and a braking device are prolonged, and the braking device is prevented from being frequently replaced.
The control device 3 comprises a mounting frame 31, the surface of the mounting frame 31 except the bottom is made of heat insulating materials to ensure that the temperature inside the mounting frame 31 is only influenced by the temperature of the generator 2, the bottom of the mounting frame 31 is fixedly connected with the top of the generator 2, the bottom between two sides of the inner wall of the mounting frame 31 is slidably connected with a partition plate 32 through a sliding groove, helium gas 33 with the volume of one sixty-eight times of that of the mounting frame 31 is filled between the bottom of the partition plate 32 and the bottom of the inner wall of the mounting frame 31, a top rod 34 is fixedly connected with the top of the partition plate 32, the top end of the top rod 34 penetrates through the mounting frame 31 and extends to the outside of the mounting frame 31, one end of the top rod 34 extending to the outside of the mounting frame 31 is provided with a first contact switch 35, the bottom of the inner wall of the cabin 1 is provided with a second contact, promote the baffle 32 motion, baffle 32 drives the motion of ejector pin 34 to make first contact switch 35 and second contact switch 36 closed, control first electric telescopic handle 8 and second electric telescopic handle 16, reach automatic braking's purpose, need not manual monitoring, facilitate the use.
The equal fixedly connected with of both sides at baffle 32 top seals piece 21, and the one side that two seals piece 21 leave mutually all with the inner wall swing joint of sliding tray, guarantees the leakproofness of baffle 32 headspace and bottom space, prevents that the helium from leaking.
One side fixedly connected with fixed plate 15 on 6 surfaces of pivot, one side fixedly connected with second electric telescopic handle 16 of fixed plate 15, the other end fixedly connected with sliding plate 17 of second electric telescopic handle 16, the opposite side fixedly connected with kelly 18 of sliding plate 17, the other end of kelly 18 passes through the fixed orifices and impeller 14's surperficial joint, fixes impeller 14, guarantees the stability of impeller 14 normal during operation.
The one end of pivot 6 is rotated and is connected with mounting panel 19 to the top and the bottom of mounting panel 19 all with the top and the bottom fixed connection of shell 5 inner wall, improve the stability of pivot 6.
The bottom of the mounting frame 31 is provided with a heat conduction block 20, which facilitates heat conduction.
The utility model discloses a theory of operation is:
when the wind speed is too high, the rotating speed of the rotating shaft 6 is increased to drive the coil temperature of the generator 2 to be increased, the temperature is conducted to the inside of the mounting frame 31 through the heat conducting block 20, the helium 33 expands to drive the partition plate 32 to move, when the temperature is increased to seventy degrees, the coil temperature enters a danger line, the helium 33 expands sixty-eight times in volume, the first contact switch 35 and the second contact switch 36 are closed, the second electric telescopic rod 16 contracts, the clamping rod 18 is separated from the impeller 14, the first electric telescopic rod 8 extends, the push plate 12 is driven by the driving block 11 to move, the impeller 14 is driven by the push plate 12 to rotate, the impeller 14 is parallel to the wind direction, the power of the impeller 14 is reduced, the rotating speed of the rotating shaft 6 is reduced, the coil temperature is reduced, braking is completed, after the temperature is reduced, the first contact switch 35 is separated from the second contact switch 36, and, the impeller 14 and the wind turbine are re-operated.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a brake equipment of aerogenerator, includes cabin (1), its characterized in that, the both sides of cabin (1) inner wall bottom are provided with generator (2) and gear speed increasing box (4) respectively, the top of generator (2) is provided with controlling means (3), one side fixedly connected with shell (5) of cabin (1), one side fixedly connected with pivot (6) of generator (2) are kept away from to gear speed increasing box (4) to the other end of pivot (6) runs through cabin (1) and shell (5) in proper order and extends to the inside of shell (5), the surperficial rotation that pivot (6) extended to the inside one end of shell (5) is connected with impeller (14), the fixed surface of pivot (6) is connected with riser (7), one side fixedly connected with first electric telescopic handle (8) of riser (7), first electric telescopic handle (8) are connected with connecting rod (10) through the turning block rotation, the back fixedly connected with transmission piece (11) of connecting rod (10), impeller (14) both sides on surface are fixedly connected with push pedal (12) and arm-tie (13) respectively, and push pedal (12) and arm-tie (13) relative one side all with transmission piece (11) swing joint, the fixed surface of impeller (14) is connected with spacing frame (9).
2. The brake apparatus of wind power generator according to claim 1, the control device (3) comprises a mounting frame (31), the bottom of the mounting frame (31) is fixedly connected with the top of the generator (2), the bottom between the two sides of the inner wall of the mounting frame (31) is connected with a clapboard (32) through a sliding groove in a sliding way, helium (33) with the volume of one sixty-eighth of the installation frame (31) is filled between the bottom of the partition plate (32) and the bottom of the inner wall of the installation frame (31), a top rod (34) is fixedly connected to the top of the partition plate (32), the top end of the mandril (34) penetrates through the mounting frame (31) and extends to the outside of the mounting frame (31), one end of the ejector rod (34) extending to the outside of the mounting frame (31) is provided with a first contact switch (35), and a second contact switch (36) is arranged at the bottom of the inner wall of the cabin (1).
3. The brake device of the wind driven generator as claimed in claim 2, wherein the sealing blocks (21) are fixedly connected to both sides of the top of the partition plate (32), and the sides of the two sealing blocks (21) away from each other are movably connected with the inner wall of the sliding groove.
4. The brake device of the wind power generator according to claim 1, wherein a fixed plate (15) is fixedly connected to one side of the surface of the rotating shaft (6), a second electric telescopic rod (16) is fixedly connected to one side of the fixed plate (15), a sliding plate (17) is fixedly connected to the other end of the second electric telescopic rod (16), a clamping rod (18) is fixedly connected to the other side of the sliding plate (17), and the other end of the clamping rod (18) is clamped with the surface of the impeller (14) through a fixed hole.
5. A brake apparatus for wind power generator according to claim 1, wherein a mounting plate (19) is rotatably connected to one end of the rotary shaft (6), and the top and bottom of the mounting plate (19) are fixedly connected to the top and bottom of the inner wall of the housing (5).
6. The brake device of the wind driven generator as claimed in claim 2, wherein the bottom of the mounting frame (31) is provided with a heat conducting block (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922352405.2U CN211370608U (en) | 2019-12-24 | 2019-12-24 | Brake device of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922352405.2U CN211370608U (en) | 2019-12-24 | 2019-12-24 | Brake device of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211370608U true CN211370608U (en) | 2020-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922352405.2U Active CN211370608U (en) | 2019-12-24 | 2019-12-24 | Brake device of wind driven generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN211370608U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160869A (en) * | 2020-09-10 | 2021-01-01 | 华电电力科学研究院有限公司 | Over-speed prevention protection device for impeller of wind turbine generator and control method |
| CN112696314A (en) * | 2020-12-29 | 2021-04-23 | 诸暨和创电机科技有限公司 | Wind driven generator based on wind power braking mechanism |
-
2019
- 2019-12-24 CN CN201922352405.2U patent/CN211370608U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160869A (en) * | 2020-09-10 | 2021-01-01 | 华电电力科学研究院有限公司 | Over-speed prevention protection device for impeller of wind turbine generator and control method |
| CN112160869B (en) * | 2020-09-10 | 2022-06-07 | 华电电力科学研究院有限公司 | Over-speed prevention protection device for impeller of wind turbine generator and control method |
| CN112696314A (en) * | 2020-12-29 | 2021-04-23 | 诸暨和创电机科技有限公司 | Wind driven generator based on wind power braking mechanism |
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