CN114810482B - Soft braking device of wind driven generator - Google Patents
Soft braking device of wind driven generator Download PDFInfo
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- CN114810482B CN114810482B CN202210364949.4A CN202210364949A CN114810482B CN 114810482 B CN114810482 B CN 114810482B CN 202210364949 A CN202210364949 A CN 202210364949A CN 114810482 B CN114810482 B CN 114810482B
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- 230000007717 exclusion Effects 0.000 claims description 3
- 241000883990 Flabellum Species 0.000 abstract description 8
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 238000005299 abrasion Methods 0.000 description 10
- 239000012535 impurity Substances 0.000 description 9
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000010030 laminating Methods 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
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Classifications
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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
- 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
- F03D7/0244—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking
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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
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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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- 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)
- Wind Motors (AREA)
- Gear Transmission (AREA)
Abstract
The invention belongs to the technical field of wind driven generators, and particularly relates to a soft braking device of a wind driven generator, which comprises a wind driven generator body; the middle part of the wind driven generator body is provided with a fan blade rotating shaft; the middle part of the fan blade rotating shaft is fixedly connected with a first gear; a second gear is rotatably connected inside the wind driven generator body; the second gear is meshed with the first gear; two electric cylinders are fixedly connected inside the wind driven generator body; the end part of each electric cylinder is fixedly connected with a speed limiting clamp; through the rotational speed of control second gear, the rotational speed of reduction flabellum pivot that can be indirect, this setting can avoid when needing to control the flabellum pivot, the condition of direct and flabellum pivot contact is required, and then when having avoided the speed limit to the flabellum pivot, with the wearing and tearing problem that the direct contact of flabellum pivot caused, when second gear wearing and tearing are serious, simultaneously only to the second gear change can, reduce the long-time back of using, because of the wearing and tearing problem that the speed limit caused the flabellum pivot.
Description
Technical Field
The invention belongs to the technical field of wind driven generators, and particularly relates to a soft braking device of a wind driven generator.
Background
The wind driven generator is a green energy source device which converts wind power resources in the nature into electric energy through mechanical energy.
A chinese patent with publication number CN101988478a discloses a soft braking device of a wind driven generator, which comprises a generator shaft and a shell, and is characterized in that: the braking device comprises a brake disc and a brake, the brake disc is fixedly connected to a shaft of the generator, and the brake is fixedly connected to a shell of the generator corresponding to the brake disc.
The rotating speed of the fan blades of the existing wind driven generator is too high in an environment with high wind speed, the speed limiting device in the wind driven generator starts to work to control the fan blades, the speed limiting device is found to directly control the rotating shafts of the fan blades to limit speed in long-time use and observation, the problem of serious abrasion of the rotating shafts of the fan blades is easy to occur after long-time use, and the wind driven generator can normally and safely operate only by maintaining or replacing the rotating shafts of the fan blades at the moment.
Therefore, the invention provides a soft braking device of a wind driven generator.
Disclosure of Invention
To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a soft braking device of a wind driven generator, which comprises a wind driven generator body; the middle part of the wind driven generator body is provided with a fan blade rotating shaft; the middle part of the fan blade rotating shaft is fixedly connected with a first gear; a second gear is rotatably connected inside the wind driven generator body; the second gear is meshed with the first gear; two electric cylinders are fixedly connected inside the wind driven generator body; the end part of each electric cylinder is fixedly connected with a speed limiting clamp; the two speed limiting clamps are arranged on two sides of the second gear; when the rotation speed of the fan blade rotating shaft needs to be controlled, the electric cylinder is started, the speed-limiting clamp is attached to the rotating rod of the second gear, the rotating speed of the second gear is reduced through contact friction between the speed-limiting clamp and the rotating rod of the second gear, meanwhile, through meshing of the second gear and the first gear, the rotating speed of the fan blade rotating shaft can be reduced, the first gear is matched with the second gear on the fan blade rotating shaft, then through controlling the rotating speed of the second gear, the rotating speed of the fan blade rotating shaft can be indirectly reduced, the situation that the fan blade rotating shaft needs to be directly contacted with the fan blade rotating shaft when needing to be controlled can be avoided, the abrasion problem caused by direct contact with the fan blade rotating shaft when the speed of the fan blade rotating shaft is limited is further avoided, meanwhile, when the abrasion of the second gear is serious, only the second gear is replaced, and the abrasion problem caused by the fan blade rotating shaft due to speed limitation after long-time use is reduced.
One side of each of the two speed-limiting clamps, which is close to each other, is hinged with a friction ejector rod; a plurality of friction mandrils are arranged on the speed-limiting clamp; a torsional spring is arranged at the joint of the speed limiting clamp and the friction ejector rod; through being equipped with a plurality of friction ejector pins in the middle part of the speed limit anchor clamps, can be when the dwang contact of speed limit anchor clamps and second gear, friction ejector pin tip can contact earlier with the dwang of second gear, rub the speed limit earlier in the middle part of the dwang of second gear, the contact of the dwang of friction ejector pin tip and second gear simultaneously, can sweep impurity and iron fillings at the dwang middle part of second gear, reduce the dwang problem of fish tail second gear that the laminating of speed limit anchor clamps leads to because of having a large amount of impurity when the dwang middle part of second gear.
Furthermore, an elastic friction plate is fixedly connected to the middle part of the friction ejector rod; the elastic friction plate is integrally arranged in an arc shape; (ii) a The end part of the elastic friction plate is provided with a roller; through being equipped with the elastic friction piece in friction ejector pin middle part, can be when the contact of friction ejector pin and the dwang middle part of second gear, the friction ejector pin also can contact with the dwang of second gear, and then carry out the auxiliary friction to the dwang of second gear, and then reduce the rotational speed of the dwang of second gear, in the sustained contact of the dwang of speed limit anchor clamps and second gear, the area of contact of elastic friction piece and the dwang of second gear will increase gradually, and then promote the frictional force of elastic friction piece and friction ejector pin to the dwang of second gear, and then promote the control power to the dwang of second gear.
Furthermore, a first elastic belt is arranged on one side, close to the speed-limiting clamp, of the elastic friction plate; two ends of the first elastic belt are fixedly connected to the bottom end and the top end of the elastic friction plate respectively; the middle part of the first elastic belt is fixedly connected with a plurality of elastic friction rods; the end part of the elastic friction rod penetrates through the elastic friction plate and extends to the other side of the elastic friction plate; the elastic friction rod is in sliding fit with the elastic friction plate; through being equipped with the elastic friction pole in the middle part of the elastic friction piece, can be at the in-process of the dwang middle part contact of elastic friction piece and second gear, the elastic friction pole can contact with the dwang of second gear earlier, clean the dwang of second gear, further reduce the impurity and the iron fillings in the dwang middle part of second gear and remain, the resistance that the dwang of multiplicable second gear of setting up of elastic friction pole received simultaneously, in-process to the dwang laminating of second gear is gradually being limited speed anchor clamps, the frictional force of gradual increase speed limit anchor clamps and the dwang of second gear, this setting can promote the frictional force of speed limit anchor clamps to the dwang of second gear gradually, make the dwang of second gear can slowly reduce the rotational speed, reduce speed limit anchor clamps and descend the flabellum damage and the aerogenerator body problem that the second gear rotational speed that leads to at the excessive speed reduction that leads to in the twinkling of an eye with the dwang contact of second gear in the twinkling of an eye.
Further, a first flexible magnet is fixedly connected to the middle of the first elastic belt; the side wall of the speed limiting clamp is fixedly connected with a second flexible magnet; the first flexible magnet and the second flexible magnet are mutually exclusive; through being equipped with first flexible magnet in first elastic webbing middle part, can be at the in-process of the dwang contact of elastic friction piece and second gear, first flexible magnet can slowly be close to with the flexible magnet of second, because of the mutual exclusion of first flexible magnet and the flexible magnet of second this moment, the elastic friction pole can be stretched out from the elastic friction piece bottom more abundant, increase the area of contact of elastic friction pole and the dwang of second gear simultaneously, promote the frictional force that the dwang of second gear received.
Further, a cavity is formed in the friction ejector rod; a second elastic belt is connected inside the cavity; a plurality of elastic supporting legs are fixedly connected to the middle part of the second elastic belt; the end part of the elastic supporting leg penetrates through the friction mandril and extends to the outside of the friction mandril; the middle part of the elastic supporting leg is in sliding fit with the friction ejector rod; through being equipped with a plurality of elastic support legs at friction ejector pin middle part, can be in the dwang contact of friction ejector pin and second gear, laminate the in-process on the speed limit anchor clamps gradually, elastic support leg can contact with the speed limit anchor clamps one by one, and then promote the pressing force degree of friction ejector pin to the dwang of second gear, this setting can make the contact dynamics of friction ejector pin and the dwang of second gear promote gradually, and then make the slew velocity of the dwang of second gear slowly descend, promote the stability of speed limit anchor clamps to the dwang control of second gear.
Furthermore, a plurality of friction blocks are fixedly connected to one side of the second elastic belt, which is far away from the elastic supporting legs; the middle part of the friction ejector rod is provided with a plurality of through holes; the friction ejector rod corresponds to the through hole in position; through being equipped with the clutch blocks in friction ejector pin inside, can be when elastic support leg and speed limit anchor clamps contact, the clutch blocks can stretch out from friction ejector pin inside under elastic support leg's promotion, contact with the dwang of second gear, frictional force when further promoting the dwang contact of speed limit anchor clamps and second gear reduces the slew velocity of the dwang of second gear.
Furthermore, a first pull rope is connected between the end part of the friction ejector rod and the middle part of the elastic friction plate; through being equipped with first stay cord between friction ejector pin and elastic friction piece, can be at the in-process of elastic friction piece and the dwang contact deformation of second gear, first stay cord can receive the dragging, should set up the stability that can promote the dwang contact of elastic friction piece and second gear.
Further, a second pull rope is connected between the friction ejector rod and the end part of the elastic friction plate at the bottom; the second pull rope is arranged between the elastic friction plate and the friction mandril, so that the stability of the speed reduction of the rotating rod of the second gear by the mutual matching of a plurality of friction mandrils on the speed-limiting clamp can be improved; so that the rotation directions of the friction mandrils are consistent.
Furthermore, a plurality of first magnets are arranged in the middle of the second pull rope; an elastic pull rope is connected between the first magnet and the second pull rope; a first magnet is arranged in the middle of the second pull rope; can be when the dwang contact of elastic friction piece and friction ejector pin and second gear, the second stay cord also can be close to the speed limit anchor clamps lateral wall, has first magnet interval between the dwang of second stay cord and second gear this moment, stability when can promoting the dwang contact of first stay cord and second gear promotes the frictional force of the dwang contact of second stay cord and second gear.
The invention has the following beneficial effects:
1. according to the soft braking device of the wind driven generator, the first gear and the second gear are arranged on the fan blade rotating shaft and matched, then the rotating speed of the fan blade rotating shaft can be indirectly reduced by controlling the rotating speed of the second gear, the situation that the fan blade rotating shaft needs to be directly contacted with the fan blade rotating shaft when needing to be controlled can be avoided, the abrasion problem caused by direct contact with the fan blade rotating shaft when the speed of the fan blade rotating shaft is limited is further avoided, meanwhile, when the second gear is seriously abraded, only the second gear is replaced, and the abrasion problem caused by the speed limit to the fan blade rotating shaft after long-time use is reduced.
2. According to the soft braking device of the wind driven generator, the plurality of elastic supporting legs are arranged in the middle of the friction ejector rod, so that the friction ejector rod can be contacted with the rotating rod of the second gear, and in the process of gradually attaching to the speed-limiting clamp, the elastic supporting legs can be contacted with the speed-limiting clamp one by one, further the pressing force of the friction ejector rod on the rotating rod of the second gear is improved, the contact force of the friction ejector rod and the rotating rod of the second gear is gradually improved through the arrangement, further the rotating speed of the rotating rod of the second gear is slowly reduced, and the stability of the speed-limiting clamp for controlling the rotating rod of the second gear is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic configuration view of the engagement of the speed limiting jig with the second gear in the present invention;
FIG. 3 is a schematic view of the structure of the speed limiting clamp according to the present invention;
FIG. 4 is a schematic view of the fitting structure of the friction mandril and the elastic friction plate in the invention;
FIG. 5 is a schematic view showing the internal structure of the friction jack of the present invention;
FIG. 6 is a schematic structural view of an elastic friction plate according to the present invention;
FIG. 7 is a schematic view of the construction of a stopper rope according to the present invention;
in the figure: 1. a wind power generator body; 11. a fan blade rotating shaft; 12. a first gear; 13. a second gear; 14. an electric cylinder; 15. a speed limiting clamp; 2. rubbing the ejector rod; 3. an elastic friction plate; 4. a first elastic band; 41. an elastic friction lever; 5. a first flexible magnet; 51. a second flexible magnet; 6. a cavity; 61. a second elastic band; 62. an elastic leg; 7. a friction block; 8. a first pull cord; 9. a second pull cord; 91. a first magnet; 92. an elastic pull rope.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example one
As shown in fig. 1 to 6, a soft braking device of a wind turbine according to an embodiment of the present invention includes a wind turbine body 1; the middle part of the wind driven generator body 1 is provided with a fan blade rotating shaft 11; a first gear 12 is fixedly connected to the middle part of the fan blade rotating shaft 11; a second gear 13 is rotatably connected inside the wind driven generator body 1; the second gear 13 is meshed with the first gear 12; two electric cylinders 14 are fixedly connected inside the wind driven generator body 1; the end part of each electric cylinder 14 is fixedly connected with a speed limiting clamp 15; the two speed limiting clamps 15 are arranged on two sides of the second gear 13; when the rotation speed of the blade rotating shaft 11 needs to be controlled, the electric cylinder 14 is started, the speed-limiting clamp 15 is attached to the rotating rod of the second gear 13, the rotation speed of the second gear 13 is reduced through contact friction between the speed-limiting clamp 15 and the rotating rod of the second gear 13, meanwhile, through the meshing of the second gear 13 and the first gear 12, the rotation speed of the blade rotating shaft 11 can be reduced, the situation that the blade rotating shaft 11 needs to be directly contacted with the blade rotating shaft 11 when the blade rotating shaft 11 needs to be controlled can be avoided through matching the first gear 12 and the second gear 13 and then controlling the rotation speed of the second gear 13, the abrasion problem caused by direct contact with the blade rotating shaft 11 when the blade rotating shaft 11 is limited is further avoided, meanwhile, when the second gear 13 is seriously abraded, only the second gear 13 needs to be replaced, and the abrasion problem caused by speed limitation to the blade rotating shaft 11 after long-time use is reduced.
One side of each of the two speed-limiting clamps 15, which is close to each other, is hinged with a friction ejector rod 2; a plurality of friction mandrils 2 are arranged on the speed-limiting clamp 15; a torsional spring is arranged at the joint of the speed limiting clamp 15 and the friction ejector rod 2; through being equipped with a plurality of friction ejector pins 2 in the middle part of speed limit anchor clamps 15, can be when speed limit anchor clamps 15 and second gear 13's dwang contact, 2 tip of friction ejector pin can contact earlier with second gear 13's dwang, rub the speed limit earlier to the middle part of second gear 13's dwang, the contact of 2 tip of friction ejector pin and second gear 13's dwang simultaneously, can sweep away impurity and iron fillings in second gear 13's dwang middle part, reduce the fish tail second gear 13's dwang problem that 15 laminating of speed limit anchor clamps lead to because of having a large amount of impurity when second gear 13's dwang middle part.
The middle part of the friction ejector rod 2 is fixedly connected with an elastic friction plate 3; the elastic friction plate 3 is integrally arranged in an arc shape; (ii) a The end part of the elastic friction plate 3 is provided with a roller; through being equipped with elastic friction piece 3 in the middle part of friction ejector pin 2, can be when friction ejector pin 2 contacts with the dwang middle part of second gear 13, friction ejector pin 2 also can contact with the dwang of second gear 13, and then carry out the auxiliary friction to the dwang of second gear 13, and then reduce the rotational speed of the dwang of second gear 13, in the continuous contact of speed limit anchor clamps 15 with the dwang of second gear 13, the area of contact of elastic friction piece 3 with the dwang of second gear 13 will increase gradually, and then promote the frictional force of elastic friction piece 3 and friction ejector pin 2 to the dwang of second gear 13, and then promote the control power to the dwang of second gear 13.
A first elastic belt 4 is arranged on one side of the elastic friction plate 3 close to the speed-limiting clamp 15; two ends of the first elastic belt 4 are fixedly connected to the bottom end and the top end of the elastic friction plate 3 respectively; the middle part of the first elastic belt 4 is fixedly connected with a plurality of elastic friction rods 41; the end part of the elastic friction rod 41 penetrates through the elastic friction plate 3 and extends to the other side of the elastic friction plate 3; the elastic friction rod 41 is in sliding fit with the elastic friction plate 3; through being equipped with elastic friction pole 41 in the middle part of elastic friction piece 3, can be at the in-process of elastic friction piece 3 with the dwang middle part contact of second gear 13, elastic friction pole 41 can contact with the dwang of second gear 13 earlier, clean the dwang of second gear 13, further reduce impurity and iron fillings in the dwang middle part of second gear 13 and remain, the resistance that the dwang of second gear 13 received can be multiplicable in the setting of elastic friction pole 41 simultaneously, in the in-process of speed limit anchor clamps 15 gradually laminating to the dwang of second gear 13, the frictional force of gradual increase speed limit anchor clamps 15 and the dwang of second gear 13, this setting can promote the frictional force of speed limit anchor clamps 15 to the dwang of second gear 13 gradually, make the dwang of second gear 13 can slow reduction rotational speed, reduce speed limit anchor clamps 15 in the twinkling of an eye and the damage flabellum and the aerogenerator body 1 problem that the second gear 13 rotational speed that the dwang descends and leads to too fast that the contact of second gear that leads to lead to with second gear 13.
The middle part of the first elastic belt 4 is fixedly connected with a first flexible magnet 5; the side wall of the speed limiting clamp 15 is fixedly connected with a second flexible magnet 51; the first flexible magnet 5 and the second flexible magnet 51 are mutually exclusive; through being equipped with first flexible magnet 5 in first elastic webbing 4 middle part, can be at the in-process of the dwang contact of elastic friction piece 3 with second gear 13, first flexible magnet 5 can be slowly close to with second flexible magnet 51, because of the mutual exclusion of first flexible magnet 5 with second flexible magnet 51 this moment, elastic friction pole 41 can be stretched out from elastic friction piece 3 bottom more fully, increase the area of contact of elastic friction pole 41 with the dwang of second gear 13 simultaneously, promote the frictional force that the dwang of second gear 13 received.
A cavity 6 is formed in the friction ejector rod 2; a second elastic belt 61 is connected inside the cavity 6; a plurality of elastic supporting legs 62 are fixedly connected to the middle part of the second elastic belt 61; the end part of the elastic supporting leg 62 passes through the friction mandril 2 and extends to the outside of the friction mandril 2; the middle part of the elastic supporting leg 62 is in sliding fit with the friction mandril 2; through being equipped with a plurality of elastic leg 62 in friction ejector pin 2 middle part, can be in the dwang contact of friction ejector pin 2 with second gear 13, laminate the in-process on speed limit anchor clamps 15 gradually, elastic leg 62 can contact with speed limit anchor clamps 15 one by one, and then promote the pressing force degree of friction ejector pin 2 to the dwang of second gear 13, this setting can make the contact dynamics of friction ejector pin 2 and the dwang of second gear 13 promote gradually, and then make the slew velocity of the dwang of second gear 13 slowly descend, promote the stability of speed limit anchor clamps 15 to the dwang control of second gear 13.
A plurality of friction blocks 7 are fixedly connected to one side of the second elastic belt 61 away from the elastic supporting legs 62; a plurality of through holes are formed in the middle of the friction ejector rod 2; the friction ejector rod 2 corresponds to the through hole in position; through being equipped with the clutch blocks 7 in friction ejector pin 2 inside, can be when elasticity landing leg 62 contacts with speed limit anchor clamps 15, clutch blocks 7 can stretch out from friction ejector pin 2 inside under the promotion of elasticity landing leg 62, contact with the dwang of second gear 13, frictional force when further promoting speed limit anchor clamps 15 and the dwang contact of second gear 13 reduces the slew velocity of the dwang of second gear 13.
A first pull rope 8 is connected between the end part of the friction ejector rod 2 and the middle part of the elastic friction plate 3; through being equipped with first stay cord 8 between friction ejector pin 2 and elastic friction piece 3, can be at the in-process of elastic friction piece 3 with the dwang contact deformation of second gear 13, first stay cord 8 can receive the dragging, should set up the stability that can promote elastic friction piece 3 and the dwang contact of second gear 13.
Example two
As shown in fig. 7, a first comparative example, in which another embodiment of the present invention is: a second pull rope 9 is connected between the friction ejector rod 2 and the end part of the elastic friction plate 3 at the bottom; the second pull rope 9 is arranged between the elastic friction plate 3 and the friction mandril 2, so that the stability of mutually matching a plurality of friction mandrils 2 on the speed-limiting clamp 15 to reduce the speed of the rotating rod of the second gear 13 can be improved; so that the rotation directions of the friction mandril 2 are consistent.
A plurality of first magnets 91 are arranged in the middle of the second pull rope 9; an elastic pull rope 92 is connected between the first magnet 91 and the second pull rope 9; the first magnet 91 is arranged in the middle of the second pull rope 9; can be when the dwang contact of elastic friction piece 3 and friction ejector pin 2 with second gear 13, second stay cord 9 also can be close to the 15 lateral walls of speed limit anchor clamps, has first magnet 91 interval between the dwang of second stay cord 9 and second gear 13 this moment, stability when can promote the dwang contact of first stay cord 8 and second gear 13 promotes the frictional force of the dwang contact of second stay cord 9 and second gear 13.
When the fan blade rotating shaft control device works, when the rotating speed of the fan blade rotating shaft 11 needs to be controlled, the electric cylinder 14 is started, the speed-limiting clamp 15 is attached to the rotating rod of the second gear 13, the rotating speed of the second gear 13 is reduced through contact friction between the speed-limiting clamp 15 and the rotating rod of the second gear 13, meanwhile, the rotating speed of the fan blade rotating shaft 11 can be reduced through meshing of the second gear 13 and the first gear 12, the first gear 12 and the second gear 13 are matched on the fan blade rotating shaft 11, and then the rotating speed of the second gear 13 is controlled, so that the rotating speed of the fan blade rotating shaft 11 can be indirectly reduced, the situation that the fan blade rotating shaft 11 needs to be directly contacted with the fan blade rotating shaft 11 when the fan blade rotating shaft 11 needs to be controlled can be avoided, further, the abrasion problem caused by direct contact with the fan blade rotating shaft 11 when the fan blade rotating shaft 11 is limited in speed is avoided, and only the second gear 13 needs to be replaced when the second gear 13 is seriously abraded, and the abrasion problem caused by the fan blade rotating shaft 11 due to speed limitation after long-time use can be reduced; through arranging the plurality of friction ejector rods 2 in the middle of the speed-limiting clamp 15, when the speed-limiting clamp 15 is contacted with the rotating rod of the second gear 13, the end parts of the friction ejector rods 2 can be firstly contacted with the rotating rod of the second gear 13, the middle part of the rotating rod of the second gear 13 is firstly subjected to friction speed limiting, and meanwhile, the end parts of the friction ejector rods 2 are contacted with the rotating rod of the second gear 13, so that impurities and scrap iron in the middle part of the rotating rod of the second gear 13 can be swept away, and the problem that the rotating rod of the second gear 13 is scratched due to a large amount of impurities when the speed-limiting clamp 15 is attached to the middle part of the rotating rod of the second gear 13 is reduced; the elastic friction plate 3 is arranged in the middle of the friction ejector rod 2, so that when the friction ejector rod 2 is contacted with the middle of the rotating rod of the second gear 13, the friction ejector rod 2 can also be contacted with the rotating rod of the second gear 13, the rotating rod of the second gear 13 is subjected to auxiliary friction, the rotating speed of the rotating rod of the second gear 13 is reduced, the contact area between the elastic friction plate 3 and the rotating rod of the second gear 13 is gradually increased in the continuous contact between the speed-limiting clamp 15 and the rotating rod of the second gear 13, the friction force of the elastic friction plate 3 and the friction ejector rod 2 on the rotating rod of the second gear 13 is further improved, and the control force on the rotating rod of the second gear 13 is further improved; by arranging the elastic friction rod 41 in the middle of the elastic friction plate 3, the elastic friction rod 41 can be firstly contacted with the rotating rod of the second gear 13 in the process of contacting the elastic friction plate 3 with the middle of the rotating rod of the second gear 13 to clean the rotating rod of the second gear 13, so that the residue of impurities and scrap iron in the middle of the rotating rod of the second gear 13 is further reduced, meanwhile, the arrangement of the elastic friction rod 41 can increase the resistance force applied to the rotating rod of the second gear 13, and the friction force between the speed-limiting clamp 15 and the rotating rod of the second gear 13 is gradually increased in the process of gradually attaching the speed-limiting clamp 15 to the rotating rod of the second gear 13, so that the friction force of the speed-limiting clamp 15 to the rotating rod of the second gear 13 can be gradually increased, the rotating speed of the rotating rod of the second gear 13 can be slowly reduced, and the problem of damage to the fan blades and the wind turbine body 1 caused by the over-fast rotating rod of the second gear 13 due to the instant contact of the speed-limiting clamp 15 with the second gear 13 is reduced; by arranging the first flexible magnet 5 in the middle of the first elastic belt 4, the first flexible magnet 5 and the second flexible magnet 51 can be slowly close to each other in the process of contacting the elastic friction plate 3 with the rotating rod of the second gear 13, at the moment, due to mutual repulsion of the first flexible magnet 5 and the second flexible magnet 51, the elastic friction rod 41 can be more fully extended out of the bottom of the elastic friction plate 3, meanwhile, the contact area between the elastic friction rod 41 and the rotating rod of the second gear 13 is increased, and the friction force borne by the rotating rod of the second gear 13 is improved; through arranging the plurality of elastic supporting legs 62 in the middle of the friction ejector rod 2, the friction ejector rod 2 can be contacted with the rotating rod of the second gear 13 and gradually attached to the speed-limiting clamp 15, the elastic supporting legs 62 can be contacted with the speed-limiting clamp 15 one by one, so that the pressing force of the friction ejector rod 2 on the rotating rod of the second gear 13 is improved, the contact force of the friction ejector rod 2 and the rotating rod of the second gear 13 can be gradually improved through the arrangement, the rotating speed of the rotating rod of the second gear 13 is slowly reduced, and the stability of the speed-limiting clamp 15 on the control of the rotating rod of the second gear 13 is improved; by arranging the friction block 7 in the friction ejector rod 2, when the elastic supporting leg 62 is in contact with the speed-limiting clamp 15, the friction block 7 can extend out of the friction ejector rod 2 under the pushing action of the elastic supporting leg 62 and is in contact with the rotating rod of the second gear 13, so that the friction force generated when the speed-limiting clamp 15 is in contact with the rotating rod of the second gear 13 is further improved, and the rotating speed of the rotating rod of the second gear 13 is reduced; by arranging the first pull rope 8 between the friction ejector rod 2 and the elastic friction plate 3, the first pull rope 8 can be pulled in the contact deformation process of the elastic friction plate 3 and the rotating rod of the second gear 13, and the arrangement can improve the contact stability of the elastic friction plate 3 and the rotating rod of the second gear 13; the second pull rope 9 is arranged between the elastic friction plate 3 and the friction mandril 2, so that the stability of mutually matching a plurality of friction mandrils 2 on the speed-limiting clamp 15 to reduce the speed of the rotating rod of the second gear 13 can be improved; the rotation directions of the friction mandrils 2 are consistent; the first magnet 91 is arranged in the middle of the second pull rope 9; can be when the dwang contact of elastic friction piece 3 and friction ejector pin 2 with second gear 13, second stay cord 9 also can be close to the 15 lateral walls of speed limit anchor clamps, has first magnet 91 interval between the dwang of second stay cord 9 and second gear 13 this moment, stability when can promote the dwang contact of first stay cord 8 and second gear 13 promotes the frictional force of the dwang contact of second stay cord 9 and second gear 13.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A soft braking device of a wind driven generator is characterized in that: comprises a wind power generator body (1); the middle part of the wind driven generator body (1) is provided with a fan blade rotating shaft (11); a first gear (12) is fixedly connected to the middle part of the fan blade rotating shaft (11); a second gear (13) is rotatably connected inside the wind driven generator body (1); the second gear (13) is meshed with the first gear (12); the wind power generator body (1) two electric cylinders (14) are fixedly connected inside; the end part of each electric cylinder (14) is fixedly connected with a speed limiting clamp (15); the two speed limiting clamps (15) are arranged on two sides of the second gear (13);
one side of each speed limiting clamp (15) close to each other is hinged with a friction ejector rod (2); a plurality of friction mandrils (2) are arranged on the speed-limiting clamp (15); a torsional spring is arranged at the joint of the speed limiting clamp (15) and the friction ejector rod (2);
the middle part of the friction ejector rod (2) is fixedly connected with an elastic friction plate (3); the elastic friction plate (3) is integrally arranged in an arc shape; the end part of the elastic friction plate (3) is provided with a roller;
a first elastic belt (4) is arranged on one side, close to the speed-limiting clamp (15), of the elastic friction plate (3); two ends of the first elastic belt (4) are fixedly connected to the bottom end and the top end of the elastic friction plate (3) respectively; the middle part of the first elastic belt (4) is fixedly connected with a plurality of elastic friction rods (41); the end part of the elastic friction rod (41) penetrates through the elastic friction plate (3) and extends to the other side of the elastic friction plate (3); the elastic friction rod (41) is in sliding fit with the elastic friction plate (3).
2. The soft brake device of a wind power generator according to claim 1, wherein: a first flexible magnet (5) is fixedly connected to the middle part of the first elastic belt (4); a second flexible magnet (51) is fixedly connected to the side wall of the speed limiting clamp (15); the first flexible magnet (5) and the second flexible magnet (51) are arranged in a mutual exclusion manner.
3. The soft brake device of a wind power generator according to claim 2, wherein: a cavity (6) is formed in the friction ejector rod (2); a second elastic belt (61) is connected inside the cavity (6); a plurality of elastic supporting legs (62) are fixedly connected to the middle part of the second elastic belt (61); the end part of the elastic supporting leg (62) penetrates through the friction mandril (2) and extends to the outside of the friction mandril (2); the middle parts of the elastic supporting legs (62) are in sliding fit with the friction mandril (2).
4. A soft brake device of a wind power generator according to claim 3, wherein: a plurality of friction blocks (7) are fixedly connected to one side of the second elastic belt (61) far away from the elastic supporting legs (62); the middle part of the friction ejector rod (2) is provided with a plurality of through holes; the friction ejector rod (2) corresponds to the through hole in position.
5. The soft brake device of a wind power generator according to claim 4, wherein: a first pull rope (8) is connected between the end part of the friction ejector rod (2) and the middle part of the elastic friction plate (3).
6. The soft brake device of a wind power generator according to claim 5, wherein: a second pull rope (9) is connected between the friction ejector rod (2) and the end part of the elastic friction plate (3) at the bottom; the stability of mutually matching a plurality of friction mandrils (2) on the speed-limiting clamp (15) to reduce the speed of the rotating rod of the second gear (13) can be improved, so that the rotating directions of the friction mandrils (2) are consistent.
7. The soft brake device of a wind power generator according to claim 6, wherein: a plurality of first magnets (91) are arranged in the middle of the second pull rope (9); an elastic pull rope (92) is connected between the first magnet (91) and the second pull rope (9); through being equipped with first magnet (91) in second stay cord (9) middle part, can also be when elastic friction piece (3) and friction ejector pin (2) contact with the dwang of second gear (13), second stay cord (9) are close to the lateral wall of speed limit anchor clamps (15), and there is first magnet (91) interval at this moment between the dwang of second stay cord (9) and second gear (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210364949.4A CN114810482B (en) | 2022-04-07 | 2022-04-07 | Soft braking device of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210364949.4A CN114810482B (en) | 2022-04-07 | 2022-04-07 | Soft braking device of wind driven generator |
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| Publication Number | Publication Date |
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| CN114810482A CN114810482A (en) | 2022-07-29 |
| CN114810482B true CN114810482B (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210364949.4A Active CN114810482B (en) | 2022-04-07 | 2022-04-07 | Soft braking device of wind driven generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2285546A1 (en) * | 1974-09-17 | 1976-04-16 | Dba | CENTERING DEVICE FOR DRUM BRAKE |
| US7073772B2 (en) * | 2003-11-04 | 2006-07-11 | Woo Kee Min | Motor brake structure and manufacturing method thereof |
| CN207989233U (en) * | 2018-03-31 | 2018-10-19 | 王玉红 | A kind of soft brake of wind-driven generator |
| CN210859047U (en) * | 2019-10-22 | 2020-06-26 | 黑龙江偕远能源科技有限公司 | Soft braking device of wind driven generator |
| CN111852770A (en) * | 2020-07-29 | 2020-10-30 | 环誉节能科技(广州)有限公司 | Blade speed-limiting protection braking device for wind power generation |
| CN215029886U (en) * | 2021-01-27 | 2021-12-07 | 浙江浦江点点新材料科技有限公司 | A fodder crushing apparatus for pig is bred |
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