CN113279906A - Device for automatically reducing length of fan blade when windmill is blown by strong wind - Google Patents
Device for automatically reducing length of fan blade when windmill is blown by strong wind Download PDFInfo
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- CN113279906A CN113279906A CN202110582810.2A CN202110582810A CN113279906A CN 113279906 A CN113279906 A CN 113279906A CN 202110582810 A CN202110582810 A CN 202110582810A CN 113279906 A CN113279906 A CN 113279906A
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- windmill
- fixedly connected
- rod
- blades
- length
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- 239000010687 lubricating oil Substances 0.000 claims description 23
- 230000006835 compression Effects 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 19
- 238000005381 potential energy Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 241000883990 Flabellum Species 0.000 description 5
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0236—Adjusting aerodynamic properties of the blades by changing the active surface of the wind engaging parts, e.g. reefing or furling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
-
- 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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to the technical field of new energy, and discloses a device for automatically reducing the length of fan blades when a windmill is blown by strong wind. The guide rod is driven to have an upward thrust to the lower end of the connecting rod when the weight moves upwards, the connecting rod is an inclined rod, the connecting rod pushes the sliding block to move rightwards, pressure exists in the anti-resistance spring, the anti-resistance spring is compressed in an internal stress mode, elastic potential energy is gathered in the internal elastic potential energy, the sliding block is prepared for resetting, when the sliding block moves rightwards, the supporting block is driven to move downwards through the pull rod, the supporting block drives the fan blades to move downwards together, the length of the windmill fan blades is reduced, the contact area with wind is reduced, the effect that when wind power is too large is achieved, the fan blades are automatically reduced through the windmill, and the contact area is reduced.
Description
Technical Field
The invention relates to the technical field of new energy, in particular to a device for automatically reducing the length of fan blades when a windmill is blown by strong wind.
Background
The living standard of people is obviously improved along with the gradual development of society, and a new concept proposed by modern society in the case of new energy replaces the existing energy by utilizing ocean energy, wind energy and geothermal energy, so that the reasonable utilization of the energy is realized, the utilization rate of the energy is increased, and the life is improved.
However, the existing windmill for converting wind energy has the defects that the contact area of the blades of the windmill is generally larger in the rotating process of the windmill, so that the utilization rate of the converted wind energy is higher, but when the wind power is too high, the rotating speed of the blades is too high, the blades of the windmill are easy to break, so that the danger of using and damaging the windmill is caused, and meanwhile, the internal rotating speed is too high, so that the heat caused by friction is higher, so that the device for automatically reducing the lengths of the blades of the windmill is produced.
Disclosure of Invention
The invention aims to provide a device for automatically reducing the length of fan blades when a windmill is blown by strong wind, so as to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automatic reduce device of flabellum length when windmill meets with strong wind and blows, includes the casing, the inside swing joint of casing has the pivot, the pivot upper end just is located the inside swing joint of casing and has the guide bar, guide bar upper end swing joint has the slider, slider right-hand member swing joint has the transfer pole.
Further, the upper end of the guide rod is fixedly connected with a weight, the lower end of the weight is fixedly connected with the guide rod, the lower end of the guide rod is movably connected with a magnet, the upper end of the guide rod is fixedly connected with a compression spring, the upper end of the weight is movably connected with a connecting rod, and the upper end of the connecting rod is movably connected with a sliding block.
Furthermore, the right end of the sliding block is fixedly connected with an anti-resistance spring, the upper end of the sliding block is movably connected with a pull rod, the upper end of the pull rod is movably connected with a supporting block, the left end of the supporting block is fixedly connected with a moving rod, and the upper end of the supporting block is fixedly connected with fan blades.
Further, slider lower extreme swing joint has the transfer bar, transfer bar lower extreme swing joint has the pressure piece, pressure piece lower extreme fixedly connected with buffer spring, pressure piece lower extreme swing joint has lubricating-oil tank, lubricating-oil tank lower extreme fixedly connected with nozzle.
Furthermore, compression spring has two, is located both ends about the guide bar respectively, compression spring is located the connecting rod lower extreme, guide bar lower extreme fixedly connected with magnet.
Furthermore, the number of the buffer springs is two, the two buffer springs are respectively located at the left end and the right end of the pressure block, and the nozzle is located at the lower end of the transfer rod.
Compared with the prior art, the invention has the following beneficial effects:
1. the blades are driven by wind power to rotate, and the housing rotates around the outer surface of the rotating shaft due to the connection relationship between the blades and the housing, when the wind power is too high, the rotating speed of the housing is increased, so that the rotating speed of the weight block on the housing is increased, the centrifugal force is gradually increased, the housing slides on the outer surface of the guide rod, and the guide rod is driven to slide together, so that when the centrifugal force of the weight block reaches a certain value, namely the rotating speed of the housing exceeds a critical value, the weight block drives the guide rod to separate from the attraction of the magnet to move upwards, so that the pressure is exerted on the compression spring, the internal stress of the compression spring is compressed, the elastic potential energy is accumulated inside, the preparation is made for resetting of the guide rod, and the guide rod is driven to have upward thrust on the lower end of the connecting rod when the weight block moves upwards, because of the connecting rod is the down tube, thereby make the connecting rod promote the slider and move right, and then there is a pressure to resist and hinder the spring, make the inside atress compression of resisting and hindering the spring, thereby inside gathering elastic potential energy, prepare for the reseing of slider, move right at the slider simultaneously, drive the supporting shoe through the pull rod and move down, thereby make the supporting shoe drive the flabellum and move down together, and then make the length of windmill flabellum reduce, thereby make the area of contact with the wind reduce, thereby reach when wind-force is too big, the flabellum is reduced automatically to the windmill, area of contact's effect reduces.
2. Through too big when hard, when the rotational speed is too fast, make the slider remove right through inner structure, thereby there is a thrust to the transfer lever, make the transfer lever have a decurrent thrust to the pressure block, and then make the pressure block have a pressure to buffer spring, make the inside atress of buffer spring compress, thereby inside gathering elastic potential energy, prepare for the reseing of pressure block, simultaneously when the pressure block moves down, there is a pressure to the lubricating-oil tank, make the lubricating-oil tank reduce, thereby the inside lubricating-oil of lubricating-oil tank passes through the transportation of nozzle, thereby scribble lubricating oil to the clearance department of casing and pivot, thereby reach and prevent fastly, pivot department friction is too big, cause the effect of mechanical wear.
Drawings
FIG. 1 is a front cross-sectional view of the housing structure of the present invention;
FIG. 2 is a partial cross-sectional view of a fan blade structure according to the present invention;
FIG. 3 is a partial cross-sectional view of a pressure block structure of the present invention;
FIG. 4 is a partial cross-sectional view of the guide bar construction of the present invention;
fig. 5 is a partial cross-sectional view of a support block structure of the present invention.
In the figure: 1. a housing; 2. a rotating shaft; 3. a guide bar; 4. a weight block; 5. a guide bar; 6. a magnet; 7. a compression spring; 8. a connecting rod; 9. a slider; 10. an anti-drag spring; 11. a pull rod; 12. a support block; 13. a travel bar; 14. a transfer lever; 15. a buffer spring; 16. a pressure block; 17. a lubricating oil tank; 18. a nozzle; 19. a fan blade.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a device for automatically reducing the length of fan blades when a windmill is blown by strong wind comprises a shell 1, a rotating shaft 2 is movably connected inside the shell 1, guide rods 3 are movably connected at the upper ends of the rotating shaft 2 and positioned inside the shell 1, a heavy block 4 is fixedly connected at the upper ends of the guide rods 3, a guide rod 5 is fixedly connected at the lower end of the heavy block 4, a magnet 6 is movably connected at the lower end of the guide rod 5, compression springs 7 are fixedly connected at the upper ends of the guide rods 5, the two compression springs 7 are respectively positioned at the left end and the right end of the guide rods 3, the compression springs 7 are positioned at the lower end of a connecting rod 8, when in use, the shell 1 is driven by wind power through the fan blades 19 to rotate, due to the connection relationship between the fan blades 19 and the shell 1, so that the shell 1 rotates around the outer surface of the rotating shaft 2, when the wind power is too high, the rotating speed of the shell 1 is increased, and the rotating speed of the heavy block 4 on the shell 1 is accelerated, at this time, the centrifugal force is gradually increased, so as to slide on the outer surface of the guide rod 3, and simultaneously drive the guide rod 5 to slide together, because the magnet 6 has an attraction force on the guide rod 5, when the centrifugal force of the weight 4 is required to reach a certain value, that is, when the rotating speed of the shell 1 exceeds a critical value, the weight 4 drives the guide rod 5 to move upwards away from the attraction force of the magnet 6, so as to have a pressure on the compression spring 7, so that the interior of the compression spring 7 is stressed and compressed, thereby internally accumulating elastic potential energy, and preparing for the reset of the guide rod 5, and simultaneously drives the guide rod 3 to have an upward thrust force on the lower end of the connecting rod 8 when the weight 4 moves upwards, because the connecting rod 8 is an inclined rod, so as to enable the connecting rod 8 to push the sliding block 9 to move rightwards, and further have a pressure on the anti-blocking spring 10, so as to cause the interior of the anti-blocking spring 10 to be stressed and compressed, thereby internally accumulating elastic potential energy, the resetting of the sliding block 9 is prepared, and when the sliding block 9 moves rightwards, the supporting block 12 is driven by the pull rod 11 to move downwards, so that the supporting block 12 drives the fan blades 19 to move downwards together, the length of the fan blades of the windmill is reduced, the contact area with wind is reduced, and the effect that when the wind power is too large, the fan blades are automatically reduced, and the contact area is reduced is achieved.
Meanwhile, the lower end of the guide rod 5 is fixedly connected with a magnet, the upper end of the weight 4 is movably connected with a connecting rod 8, the upper end of the connecting rod 8 is movably connected with a slide block 9, the upper end of the guide rod 3 is movably connected with a slide block 9, the lower end of the slide block 9 is movably connected with a transmission rod 14, the lower end of the transmission rod 14 is movably connected with a pressure block 16, the lower end of the pressure block 16 is fixedly connected with a buffer spring 15, two buffer springs 15 are respectively arranged at the left end and the right end of the pressure block 16, a nozzle 18 is arranged at the lower end of the transmission rod 14, the lower end of the pressure block 16 is movably connected with a lubricating oil tank 17, the lower end of the lubricating oil tank 17 is fixedly connected with a nozzle 18, the right end of the slide block 9 is fixedly connected with an anti-drag spring 10, the upper end of the slide block 9 is movably connected with a pull rod 11, the upper end of the pull rod 11 is movably connected with a support block 12, and when the rotating speed is too fast, the slide block 9 is moved rightwards through an internal structure so as to provide thrust for the transmission rod 14, make transfer bar 14 have a decurrent thrust to pressure block 16, and then make pressure block 16 have a pressure to buffer spring 15, make the inside atress compression of buffer spring 15, thereby inside gathering elastic potential energy, prepare for the restoration of pressure block 16, simultaneously when pressure block 16 moves down, there is a pressure to lubricating-oil tank 17, make lubricating-oil tank 17 reduce, thereby the transportation of the inside lubricating oil of lubricating-oil tank 17 through nozzle 18, thereby scribble lubricating oil to the clearance department of casing 1 with pivot 2, thereby reach and prevent fastly, pivot department rubs excessively, cause the effect of mechanical wear, simultaneously supporting shoe 12 left end fixedly connected with carriage release lever 13, supporting shoe 12 upper end fixedly connected with flabellum 19, slider 9 right-hand member swing joint has transfer bar 14.
When the device is used, firstly, the fan blades 19 are driven to rotate by wind power, and because of the connection relationship between the fan blades 19 and the shell 1, the shell 1 rotates around the outer surface of the rotating shaft 2, when the wind power is too large, the rotating speed of the shell 1 is increased, so that when the rotating speed of the heavy blocks 4 on the shell 1 is increased, the centrifugal force is gradually increased, so that the heavy blocks slide on the outer surface of the guide rod 3, and the guide rod 5 is driven to slide together, because the magnet 6 has attraction to the guide rod 5, when the centrifugal force of the heavy blocks 4 is required to reach a certain value, namely when the rotating speed of the shell 1 exceeds a critical value, the heavy blocks 4 drive the guide rod 5 to move upwards away from the attraction of the magnet 6, so that pressure is provided to the compression spring 7, the internal stress and compression of the compression spring 7 is realized, and the elastic potential energy is accumulated inside, thereby preparing for the resetting of the guide rod 5, meanwhile, when the weight 4 moves upwards, the guide rod 3 is driven to have upward thrust on the lower end of the connecting rod 8, and the connecting rod 8 is an inclined rod, so that the connecting rod 8 pushes the sliding block 9 to move rightwards.
Furthermore, the anti-resistance spring 10 has a pressure, so that the anti-resistance spring 10 is stressed and compressed, and elastic potential energy is accumulated inside, so as to prepare for resetting of the sliding block 9, and when the sliding block 9 moves rightwards, the supporting block 12 is driven by the pull rod 11 to move downwards, so that the supporting block 12 drives the fan blades 19 to move downwards together, and further the length of the fan blades of the windmill is reduced, so that the contact area with wind is reduced, and therefore, when the wind power is too large, the fan blades are automatically reduced by the windmill, and the contact area is reduced.
Meanwhile, when the force is too large, the rotating speed is too high, the sliding block 9 is moved rightwards through the internal structure, so that the transmission rod 14 has thrust, the transmission rod 14 has downward thrust to the pressure block 16, the pressure block 16 has pressure to the buffer spring 15, the internal stress of the buffer spring 15 is compressed, the internal elastic potential energy is gathered, the pressure block 16 is reset, meanwhile, when the pressure block 16 moves downwards, the pressure is applied to the lubricating oil tank 17, the lubricating oil tank 17 is reduced, the lubricating oil in the lubricating oil tank 17 is transported through the nozzle 18, the lubricating oil is applied to the gap between the shell 1 and the rotating shaft 2, the speed is prevented from being too high, the rotating shaft has too large friction, and the mechanical wear effect is caused.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A device for automatically reducing the length of the blades of a windmill when it is subjected to high winds, comprising a casing (1), characterized in that: the utility model discloses a novel portable electronic device, including casing (1), the inside swing joint of casing (1) has pivot (2), pivot (2) upper end just is located casing (1) inside swing joint and has guide bar (3), guide bar (3) upper end swing joint has slider (9), slider (9) right-hand member swing joint has transfer bar (14).
2. A device for automatically reducing the length of the blades of a windmill when it is exposed to high wind according to claim 1, wherein: guide bar (3) upper end fixedly connected with pouring weight (4), pouring weight (4) lower extreme fixedly connected with guide bar (5), guide bar (5) lower extreme swing joint has magnet (6), guide bar (5) upper end fixedly connected with compression spring (7), pouring weight (4) upper end swing joint has connecting rod (8), connecting rod (8) upper end swing joint has slider (9).
3. A device for automatically reducing the length of the blades of a windmill when it is exposed to high wind according to claim 1, wherein: the anti-drag spring (10) is fixedly connected to the right end of the sliding block (9), a pull rod (11) is movably connected to the upper end of the sliding block (9), a supporting block (12) is movably connected to the upper end of the pull rod (11), a moving rod (13) is fixedly connected to the left end of the supporting block (12), and fan blades (19) are fixedly connected to the upper end of the supporting block (12).
4. A device for automatically reducing the length of the blades of a windmill when it is exposed to high wind according to claim 1, wherein: the improved lubricating oil cylinder is characterized in that a transfer rod (14) is movably connected to the lower end of the sliding block (9), a pressure block (16) is movably connected to the lower end of the transfer rod (14), a buffer spring (15) is fixedly connected to the lower end of the pressure block (16), a lubricating oil tank (17) is movably connected to the lower end of the pressure block (16), and a nozzle (18) is fixedly connected to the lower end of the lubricating oil tank (17).
5. A device for automatically reducing the length of the blades of a windmill when it is exposed to high wind according to claim 2, wherein: compression spring (7) have two, are located guide bar (3) left and right sides both ends respectively, compression spring (7) are located connecting rod (8) lower extreme, guide bar (5) lower extreme fixedly connected with magnet.
6. An apparatus for automatically reducing the length of the blades of a windmill when it is exposed to high wind according to claim 4, wherein: the two buffer springs (15) are respectively positioned at the left end and the right end of the pressure block (16), and the nozzle (18) is positioned at the lower end of the transfer rod (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110582810.2A CN113279906A (en) | 2021-05-27 | 2021-05-27 | Device for automatically reducing length of fan blade when windmill is blown by strong wind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110582810.2A CN113279906A (en) | 2021-05-27 | 2021-05-27 | Device for automatically reducing length of fan blade when windmill is blown by strong wind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113279906A true CN113279906A (en) | 2021-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110582810.2A Withdrawn CN113279906A (en) | 2021-05-27 | 2021-05-27 | Device for automatically reducing length of fan blade when windmill is blown by strong wind |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113279906A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958462A (en) * | 2021-10-11 | 2022-01-21 | 西安航空职业技术学院 | Wind driven generator blade detection device and method |
-
2021
- 2021-05-27 CN CN202110582810.2A patent/CN113279906A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958462A (en) * | 2021-10-11 | 2022-01-21 | 西安航空职业技术学院 | Wind driven generator blade detection device and method |
| CN113958462B (en) * | 2021-10-11 | 2023-07-25 | 西安航空职业技术学院 | Wind driven generator blade detection device and method |
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210820 |