CN112901680A - Wind-powered electricity generation wheel hub emergency braking protection device - Google Patents
Wind-powered electricity generation wheel hub emergency braking protection device Download PDFInfo
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- CN112901680A CN112901680A CN202110050667.2A CN202110050667A CN112901680A CN 112901680 A CN112901680 A CN 112901680A CN 202110050667 A CN202110050667 A CN 202110050667A CN 112901680 A CN112901680 A CN 112901680A
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- 230000005611 electricity Effects 0.000 title claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 68
- 239000003921 oil Substances 0.000 claims description 49
- 238000004140 cleaning Methods 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 11
- 239000010720 hydraulic oil Substances 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000002826 coolant Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 239000000110 cooling liquid Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 10
- 239000000446 fuel Substances 0.000 description 8
- 238000010248 power generation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
- F16D65/186—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes with full-face force-applying member, e.g. annular
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/005—Components of axially engaging brakes not otherwise provided for
- F16D65/0068—Brake calipers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D65/84—Features relating to cooling for disc brakes
- F16D65/847—Features relating to cooling for disc brakes with open cooling system, e.g. cooled by air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/90—Braking
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
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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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses an emergency braking protection device for a wind power hub, and relates to the technical field of wind power hubs, wherein the protection device comprises a brake disc, brake calipers, a cooling mechanism and a centrifugal power mechanism; install the rotating main shaft on the wind-powered electricity generation wheel hub, install the brake disc on the rotating main shaft, the brake disc outside is provided with brake caliper, wind-powered electricity generation wheel hub outside fixed mounting has centrifugal power mechanism, utilize centrifugal power mechanism to realize the output of power, when wind-powered electricity generation wheel hub's rotational speed is lower, the output can be realized to the power supply, the power drive brake caliper of output presss from both sides tightly the brake disc, realize mechanical braking, increase braking effect, make opportunity to adopt mechanical braking more accurate to the accuse, only when wind-powered electricity generation wheel hub's rotational speed reduces to certain value, just can automatic start mechanical braking, adopt mechanical braking to lead to giving out heat when having avoided wind-powered electricity generation wheel hub to rotate at a high speed and increase and cause the conflagration, make wind-powered electricity generation.
Description
Technical Field
The invention relates to the technical field of wind power hubs, in particular to an emergency braking protection device for a wind power hub.
Background
Wind power generation refers to converting kinetic energy of wind into electric energy. Wind energy is a clean and pollution-free renewable energy source and is used by people for a long time, mainly water is pumped and ground through a windmill, and people are interested in how to use wind to generate electricity.
The wind power generation is very environment-friendly, and the wind energy is huge, so that the wind power generation is increasingly paid attention by various countries in the world.
The hub of the wind driven generator is an important part in the power generation process, whether the wind driven generator hub can be normally used or not directly relates to the safety of wind power generation, the existing wind driven generator set can carry out emergency braking on the wind driven generator set when the wind power is large, therefore, the wind generating set is protected, when the existing wind generating set is braked, the fan blades are usually firstly used for braking, the rotating speed is reduced by using a mechanical braking mode after the rotating speed is reduced, however, the timing of adopting the mechanical brake cannot be well understood, the too early mechanical brake can cause the temperature of the brake disc to be too high, the fire of the common wind generating set is caused by the reason, how to realize the protection of the wind generating set in the emergency braking process becomes a problem to be solved by people, so people urgently need a wind power hub emergency braking protection device to solve the problem.
Disclosure of Invention
The invention aims to provide an emergency braking protection device for a wind power hub, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a wind power hub emergency braking protection device comprises a rotary main shaft, a brake disc, brake calipers, a cooling mechanism and a centrifugal power mechanism;
wind-powered electricity generation wheel hub is connected to the rotating main shaft, drives the rotating main shaft through wind-powered electricity generation wheel hub's rotation and rotates, realizes wind power generation, install the brake disc on the rotating main shaft, the brake disc is used for realizing mechanical braking to the rotating main shaft, the brake disc outside is provided with brake caliper, contact between brake caliper and the brake disc, increase frictional force realizes the mechanical braking of rotating main shaft, wind-powered electricity generation wheel hub outside fixed mounting has centrifugal power mechanism, centrifugal power mechanism is used for providing the power source for brake caliper's braking through the centrifugal force of wind-powered electricity generation wheel hub rotation in-process, and does not provide power for brake caliper through hydraulic pressure or atmospheric pressure's mode, more energy-concerving and environment-protective.
Preferably, the brake caliper comprises a slide bar, a slide pad, a brake pad and a first drive mechanism;
the brake disc comprises a slide rod, a brake disc and a slide piece, wherein the slide rod is provided with a slide piece at two ends, one side of the slide piece close to the brake disc is provided with a brake pad, the brake pad is arranged at two sides of the brake disc, one side of the slide piece far away from the brake pad is provided with a first driving mechanism, and the first driving mechanism is used for driving the slide piece to slide on the slide rod, so that the contact between the brake pad and the brake disc is realized, and further the mechanical braking is realized.
Preferably, the centrifugal power mechanism comprises a mounting disc, a power source, a first oil supply pipe, a rotary adapter and a second oil supply pipe;
the wind power wheel hub is fixedly installed on the outer side of the installation disc, a plurality of power sources are installed on one side of the installation disc, the power sources utilize centrifugal force generated in the rotating process of the wind power wheel hub to achieve power supply, when the rotating speed of the wind power wheel hub is reduced, the power sources carry out power output and transmit power to the first driving mechanism to achieve mechanical braking, the mechanical braking opportunity is enabled to be more accurate, heating and ignition caused by mechanical braking under the condition that the rotating speed of a rotating main shaft is too high are avoided, one end of each power source is connected with the first oil supply pipe, the rotating adapter is installed at one end of the first oil supply pipe, the second oil supply pipe is arranged on one side of the rotating adapter, the first oil supply pipe and the second oil supply pipe are used for achieving transmission of power source power, one side of the rotating adapter rotates along with the wind power wheel hub, the rotary adapter is internally sealed through graphite.
Preferably, the power source comprises a mounting plate, a first piston cylinder, a first piston, a first limiting slide rod and a return spring;
the power source is installed on the installation disc through the installation plate, a first piston cylinder is arranged on one side of the installation plate, a first piston is arranged in the first piston cylinder and slides in the first piston cylinder, a first limiting slide rod is arranged at one end, far away from the center of the installation disc, of the first piston, the first limiting slide rod is used for guaranteeing the stability of the first piston in the sliding process, a reset spring is installed at one end, far away from the first limiting slide rod, of the first piston in the first piston cylinder, and the reset spring is used for providing power for the movement of the first piston when the rotating speed of the wind power hub is reduced, and outputting of the power is achieved;
the first driving mechanism comprises a second piston cylinder, a second piston and a third oil supply pipe;
the brake pad is kept away from to the slide block one side and is provided with the second piston, the second piston cup joints inside the second piston cylinder, pass through the third between second piston cylinder and the second oil feed pipe and supply oil piping connection, the third supplies oil pipe to be used for carrying the power of power supply output to first actuating mechanism position department, first fuel feed pipe, second fuel feed pipe, third fuel feed pipe, first piston cylinder and second piston cylinder inside all is filled with hydraulic oil.
Preferably, a plurality of exhaust grooves are formed in the side wall of the first limiting slide bar, and the exhaust grooves are used for discharging gas when the second piston slides in the second piston cylinder, so that the second piston can slide more smoothly in the second piston cylinder.
Preferably, the cooling mechanism comprises a cooling box, a second driving mechanism, a fourth oil supply pipeline, a cleaning assembly and a second limiting slide rod;
the brake disc cooling device is characterized in that a cooling box is arranged below the brake disc, cooling liquid is filled in the cooling box and used for cooling the brake disc after mechanical braking, a second driving mechanism is installed at the bottom of the cooling box and used for driving the cooling box to rise, so that the cooling liquid in the cooling box can be in contact with the brake disc, the cooling of the brake disc is realized, the second driving mechanism is connected with a second oil supply pipe through a fourth oil supply pipe, the power output by a power source can be conveyed to the position of the second driving mechanism, the rising of the cooling box is realized, cleaning components are arranged at two ends in the cooling box and used for cleaning the brake disc after the cooling of the cooling liquid, the influence of the residual cooling liquid on the brake disc on the braking effect of brake calipers is avoided, and meanwhile, the cooling box is also used for cleaning and cooling the part of the brake disc which is not in contact with the cooling liquid, the two birds with one stone, the cooling box carries out spacing slip through the spacing slide bar of second and goes up and down.
Preferably, the second drive mechanism comprises a third piston cylinder and a third piston;
the third piston is installed to cooling box bottom, the second piston cup joints in the inside of second piston cylinder, through supplying with hydraulic oil to the inside of second piston cylinder for the inside pressure increase of second piston cylinder realizes the rising to the cooling box.
Preferably, the cleaning assembly comprises a fixed shaft, a rotating rod and a cleaning sponge;
the fixed axle is installed at cooling box inside both ends, the fixed axle is used for fixing the clearance subassembly, a plurality of rotary rod has been cup jointed on the fixed axle, the clearance sponge has been cup jointed on the rotary rod, the clearance sponge is used for wiping and cooling the brake disc.
Preferably, the rotary rod is installed on the fixed axle through rotatory gasbag, rotatory gasbag inboard and fixed axle fixed connection, rotatory gasbag outside and rotary rod fixed connection, rotatory gasbag is elastic air bag, has the resilience, rotatory gasbag inboard is provided with gas transmission pipeline, gas transmission pipeline is used for realizing the gas transport between a plurality of rotary rod for when one or more of them rotary rod take place rotatoryly, the inside gas of other rotary rods can increase, a plurality of through-hole has been seted up to the rotary rod both sides, the through-hole outside is provided with inflation rubber, through-hole and inflation rubber are used for expanding the clearance sponge of parcel in the rotary rod outside, make the clearance sponge can be abundant with the brake disc contact, realize wiping and the cooling to the brake disc.
Preferably, the thickness of brake disc is less than the width of cooling box for the brake disc can get into the inside and the coolant liquid contact of cooling box and cool down.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention is provided with the centrifugal power mechanism and the brake calipers, the centrifugal power mechanism is used for outputting power, when the rotating speed of the wind power hub is lower, the power source can realize the power output, the output power drives the brake calipers to clamp a brake disc, the mechanical braking is realized, and the braking effect is increased.
2. The centrifugal power mechanism and the cooling mechanism are arranged, so that when the rotating speed of the wind power hub is reduced and mechanical braking is adopted, the brake disc can be cooled through the cooling mechanism, the brake disc is prevented from being too high in temperature, and the wind power hub is braked in a mechanical braking mode more safely and reliably.
3. The cleaning assembly is arranged, so that the brake disc after being cooled can be cleaned, the brake disc is prevented from being adhered with more cooling liquid to influence the braking effect, meanwhile, in the process of rising the cooling box, the rotary rod is rotated by the brake disc through driving of the rotary rod, gas in the rotary air bag enters the adjacent rotary rod, the rotary rod can drive the cleaning sponge to expand, the cleaning sponge is in closer contact with the brake disc, and the cleaning sponge is better in cleaning and cooling effects on the brake disc.
Drawings
FIG. 1 is a schematic structural diagram of an emergency braking protection device for a wind turbine hub according to the present invention;
FIG. 2 is a schematic structural diagram of a centrifugal power mechanism of the emergency braking protection device for a wind power hub according to the present invention;
FIG. 3 is a schematic structural diagram of a power source of the emergency braking protection device for a wind power hub according to the present invention;
FIG. 4 is a schematic structural diagram of a brake caliper and a cooling mechanism of the emergency braking protection device for a wind power hub of the invention;
FIG. 5 is a schematic view of an installation structure of a second driving mechanism of the emergency braking protection device for a wind power hub according to the present invention;
FIG. 6 is a schematic structural diagram of a cooling mechanism of the emergency braking protection device for a wind turbine hub according to the present invention;
FIG. 7 is a schematic view of a disassembled structure of a cleaning assembly of the wind power hub emergency braking protection device of the present invention;
FIG. 8 is a schematic structural diagram of a rotating rod of the emergency braking protection device for a wind turbine hub according to the present invention;
fig. 9 is a schematic structural view of a region a in fig. 8 of the emergency braking protection device for a wind turbine hub according to the present invention.
Reference numbers in the figures: 1. rotating the main shaft; 2. a brake disc;
3. a brake caliper;
301. a slide bar; 302. a slide sheet; 303. a brake pad;
3041. a second piston cylinder; 3042. a second piston; 3043. a third oil supply pipe;
4. a cooling mechanism;
401. a cooling box;
4021. a third piston cylinder; 4022. a third piston;
403. a fourth oil supply pipe;
4041. a fixed shaft; 4042. rotating the rod; 4043. cleaning the sponge; 4044. rotating the air bag; 4045. a gas pipeline; 4046. a through hole; 4047. an expanded rubber;
405. a second limit slide bar;
5. a centrifugal power mechanism;
501. mounting a disc;
5021. mounting a plate; 5022. a first piston cylinder; 5023. a first piston; 5024. a first limit slide bar; 5025. a return spring;
503. a first oil supply pipe; 504. rotating the adapter; 505. a second oil supply pipe; 506. an exhaust groove.
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.
Example (b): as shown in fig. 1 to 9, the invention provides the following technical scheme that the emergency braking protection device for the wind power hub comprises a rotating main shaft 1, a brake disc 2, a brake caliper 3, a cooling mechanism 4 and a centrifugal power mechanism 5;
wind-powered electricity generation wheel hub is connected to rotating main shaft 1, rotation through wind-powered electricity generation wheel hub drives rotating main shaft 1 and rotates, realize wind power generation, install brake disc 2 on the rotating main shaft 1, brake disc 2 is used for 1 mechanical braking of rotation main shaft, the 2 outside of brake disc is provided with brake caliper 3, the contact between brake caliper 3 and the brake disc 2, increase frictional force, realize the mechanical braking of rotation main shaft 1, wind-powered electricity generation wheel hub outside fixed mounting has centrifugal power mechanism 5, centrifugal power mechanism 5 is used for providing the power source for brake caliper 3's braking through the centrifugal force of wind-powered electricity generation wheel hub rotation in-process, rather than come to provide power for brake caliper 3 through the mode of hydraulic pressure or atmospheric pressure, more energy-concerving and.
The brake caliper 3 includes a slide bar 301, a slide plate 302, a brake plate 303, and a first driving mechanism;
the two ends of the sliding rod 301 are provided with sliding pieces 302 in a sliding mode, one side, close to the brake disc 2, of each sliding piece 302 is provided with the brake piece 302, the brake pieces 302 are located on two sides of the brake disc 2, one side, far away from the brake piece 302, of each sliding piece 302 is provided with a first driving mechanism, the first driving mechanism is used for driving the sliding pieces 302 to slide on the sliding rod 301, contact between the brake pieces 303 and the brake disc 2 is achieved, and mechanical braking is achieved.
The centrifugal power mechanism 5 comprises a mounting disc 501, a power source, a first oil supply pipe 503, a rotary joint 504 and a second oil supply pipe 505;
the mounting disc 501 is fixedly mounted on the outer side of the wind power hub, a plurality of power sources are mounted on one side of the mounting disc 501, the power sources realize power supply by utilizing centrifugal force in the rotation process of the wind power hub, when the rotating speed of the wind power hub is reduced, the power source outputs power and transmits the power to the first driving mechanism to realize mechanical braking, make mechanical braking's opportunity more accurate, mechanical braking leads to generating heat and catching fire under the too fast condition of 1 rotational speed of rotary main shaft has been avoided, power supply one end is connected with first fuel feed pipe 503, rotary joint 504 is installed to first fuel feed pipe 503 one end, rotary joint 504 one side is provided with the second and supplies fuel feed pipe 505, first fuel feed pipe 503 and second supply fuel feed pipe 504 are used for realizing the transmission of power supply power, wind-powered electricity generation wheel hub is together rotated along with one side of rotary joint 504, the opposite side does not rotate, realize power supply, rotary joint 504 is inside to be sealed through graphite.
The power source comprises a mounting plate 5021, a first piston cylinder 5022, a first piston 5023, a first limit slide bar 5024 and a return spring 5025;
the power source is mounted on the mounting disc 501 through a mounting plate 5021, a first piston cylinder 5022 is arranged on one side of the mounting plate 5021, a first piston 5023 is arranged inside the first piston cylinder 5022, the first piston 5023 slides inside the first piston cylinder 5022, a first limit slide bar 5024 is arranged at one end, far away from the center of the mounting disc 501, of the first piston 5023, the first limit slide bar 5024 is used for guaranteeing stability of the first piston 5023 in the sliding process, a reset spring 5025 is mounted at one end, far away from the first limit slide bar 5024, of the first piston 5023 inside the first piston cylinder 5022, and the reset spring 5025 is used for providing power for movement of the first piston 5023 when the rotating speed of the wind power hub is reduced, so that power output is achieved;
the first drive mechanism includes a second piston cylinder 3041, a second piston 3042, and a third oil supply pipe 3043;
a second piston 3042 is arranged on one side, away from the brake pad 303, of the sliding pad 302, the second piston 3042 is sleeved inside the second piston cylinder 3041, the second piston cylinder 3041 is connected with the second oil supply pipe 505 through a third oil supply pipe 3043, the third oil supply pipe 3043 is used for conveying power output by a power source to the position of the first driving mechanism, and hydraulic oil is filled in the first oil supply pipe 503, the second oil supply pipe 505, the third oil supply pipe 3043, the first piston cylinder 5022 and the second piston cylinder 3041.
The side wall of the first limit slide bar 5024 is provided with a plurality of air discharge slots 506, and the air discharge slots 506 are used for discharging air when the second piston 3042 slides inside the second piston cylinder 3041, so that the second piston 3042 slides more smoothly inside the second piston cylinder 3041.
The cooling mechanism 4 comprises a cooling box 401, a second driving mechanism, a fourth oil supply pipeline 403, a cleaning assembly and a second limiting slide rod 405;
a cooling box 401 is arranged below the brake disc 2, a cooling liquid is filled in the cooling box 401 and used for cooling the brake disc after mechanical braking, a second driving mechanism is arranged at the bottom of the cooling box 401 and used for driving the cooling box 401 to rise, so that the cooling liquid in the cooling box 401 can be in contact with the brake disc 2 to cool the brake disc 2, the second driving mechanism is connected with a second oil supply pipe 505 through a fourth oil supply pipe 403, power output by a power source can be conveyed to the position of the second driving mechanism to realize the lifting of the cooling box 401, cleaning components are arranged at two ends in the cooling box 401 and used for wiping the brake disc 2 after cooling the cooling liquid, the influence of the residual cooling liquid on the brake disc 2 on the braking effect of the brake caliper 3 is avoided, and meanwhile, the cleaning components are also used for wiping and cooling the part of the brake disc 2 which is not in contact with the cooling liquid, two birds with one stone, the cooling box 401 is lifted by the second limit slide bar 405 in a limit sliding manner.
The second drive mechanism comprises a third piston cylinder 4021 and a third piston 4022;
The cleaning assembly comprises a fixed shaft 4041, a rotating rod 4042 and a cleaning sponge 4043;
fixed axle 4041 is installed to the inside both ends of cooling box 401, and fixed axle 4041 is used for fixing the clearance subassembly, has cup jointed a plurality of rotary rod 4042 on the fixed axle 4041, has cup jointed clearance sponge 4043 on the rotary rod 4042, and clearance sponge 4043 is used for wiping and cooling brake disc 2.
The thickness of brake disc 2 is less than the width of cooling box 401 for brake disc 2 can get into inside the cooling box 401 and contact with the coolant liquid and cool down.
The working principle of the invention is as follows: when the emergency braking device is used, when the wind power hub needs to be braked emergently, the resistance is increased by the rotation of the fan blades to realize the preliminary reduction of the rotating speed of the wind power hub, the centrifugal force applied to the first piston 5023 in the power source is smaller and smaller along with the continuous reduction of the rotating speed of the wind power hub, so that the return spring 5025 can drive the first piston 5023 to slide in the first piston cylinder 5022, the hydraulic oil in the first piston cylinder 5022 is delivered to the rotary joint 504 through the first oil supply pipe 503, the hydraulic oil is delivered to the position of the first driving mechanism through the second oil supply pipe 505 and the third oil supply pipe 3043, the second piston 3042 inside the second piston cylinder 3041 slides out by the input hydraulic oil, the slide plate 302 is driven to slide on the slide rod 301, the brake pad 303 is in contact with the brake disc 2, and at the moment, the mechanical braking of the wind power hub is realized, so that the mechanical braking opportunity is more accurately mastered;
after the hydraulic oil in the first piston cylinder 5022 is conveyed to the position of the rotary joint 504, the hydraulic oil can be conveyed to the position of the second driving mechanism through the second oil supply pipe 505 and the fourth oil supply pipe 403, the third piston 4022 in the third piston cylinder 4021 extends out to lift the cooling box 401, so that the brake disc 2 which is in contact with the brake pad 303 can be in contact with the cooling liquid in the cooling box 401 to cool the brake disc 2;
when the brake disc 2 enters the cooling box 401, the brake disc 2 drives part of the rotating rods 4042 to rotate downwards, at this time, due to the rotation of part of the rotating rods 4042, the gas inside the rotating air bags 4044 is extruded out, the extruded gas is conveyed to the inside of the adjacent rotating rods 4042, the gas pressure inside the adjacent rotating rods 4042 is increased, the expanded rubber 4047 is expanded due to the increased pressure, the cleaning sponge 4043 can be driven to expand, and the contact between the cleaning sponge 4043 and the brake disc 2 is tighter, on one hand, the cleaning sponge 4043 can be used for wiping the cooling liquid on the brake disc 2, so that the influence of the residual cooling liquid on the braking effect of the brake disc 2 is avoided, on the other hand, the part of the brake disc 2 which is not in contact with the cooling liquid can be cooled, and on the third hand, so that the friction force between the brake disc 2 can be further increased, the mechanical braking effect is better;
through the mode, the protection to the wind power wheel hub in the emergency braking process is realized, and the fire caused by overhigh heat due to the adoption of a mechanical braking mode under the high-speed rotation of the wind power wheel hub is avoided.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a wind-powered electricity generation wheel hub emergency braking protection device which characterized in that: the protection device comprises a rotating main shaft (1), a brake disc (2), brake calipers (3), a cooling mechanism (4) and a centrifugal power mechanism (5);
wind-powered electricity generation wheel hub is connected in rotatory main shaft (1), install brake disc (2) on rotatory main shaft (1), brake disc (2) outside is provided with brake caliper (3), wind-powered electricity generation wheel hub outside fixed mounting has centrifugal power mechanism (5).
2. The wind power hub emergency brake protection device of claim 1, wherein: the brake caliper (3) comprises a sliding rod (301), a sliding plate (302), a brake plate (303) and a first driving mechanism;
slide bar (301) both ends slidable mounting has slide (302), slide (302) are close to brake disc (2) one side and are provided with brake block (302), brake block (302) are located brake disc (2) both sides, slide (302) are kept away from brake block (302) one side and are provided with a actuating mechanism.
3. The wind power hub emergency brake protection device of claim 2, wherein: the centrifugal power mechanism (5) comprises a mounting disc (501), a power source, a first oil supply pipe (503), a rotary joint (504) and a second oil supply pipe (505);
mounting disc (501) fixed mounting and wind-powered electricity generation wheel hub outside, a plurality of power supply is installed to mounting disc (501) one side, power supply one end is connected with first confession oil pipe (503), rotary joint (504) are installed to first confession oil pipe (503) one end, rotary joint (504) one side is provided with the second and supplies oil pipe (505).
4. The wind power hub emergency brake protection device of claim 3, wherein: the power source comprises a mounting plate (5021), a first piston cylinder (5022), a first piston (5023), a first limiting sliding rod (5024) and a return spring (5025);
the power source is installed on the installation disc (501) through an installation plate (5021), a first piston cylinder (5022) is arranged on one side of the installation plate (5021), a first piston (5023) is arranged inside the first piston cylinder (5022), the first piston (5023) slides inside the first piston cylinder (5022), a first limit slide bar (5024) is arranged at one end, far away from the center of the installation disc (501), of the first piston (5023), and a reset spring (5025) is installed at one end, far away from the first limit slide bar (5024), of the first piston (5023) inside the first piston cylinder (5022);
the first driving mechanism comprises a second piston cylinder (3041), a second piston (3042) and a third oil supply pipe (3043);
one side, far away from the brake pad (303), of the sliding plate (302) is provided with a second piston (3042), the second piston (3042) is sleeved inside a second piston cylinder (3041), the second piston cylinder (3041) is connected with a second oil supply pipe (505) through a third oil supply pipe (3043), and hydraulic oil is filled inside the first oil supply pipe (503), the second oil supply pipe (505), the third oil supply pipe (3043), the first piston cylinder (5022) and the second piston cylinder (3041).
5. The wind power hub emergency brake protection device of claim 4, wherein: the side wall of the first limiting sliding rod (5024) is provided with a plurality of exhaust grooves (506).
6. The wind power hub emergency brake protection device of claim 4, wherein: the cooling mechanism (4) comprises a cooling box (401), a second driving mechanism, a fourth oil supply pipeline (403), a cleaning assembly and a second limiting slide rod (405);
brake disc (2) below is provided with cooling box (401), the inside coolant liquid that is equipped with of cooling box (401), second actuating mechanism is installed to cooling box (401) bottom, second actuating mechanism supplies oil pipe (403) through the fourth and supplies oil pipe (505) to be connected with the second, the inside both ends of cooling box (401) are provided with the clearance subassembly, spacing slip lift is carried out through second limit slide bar (405) in cooling box (401).
7. The wind power hub emergency brake protection device of claim 6, wherein: the second drive mechanism comprises a third piston cylinder (4021) and a third piston (4022);
and a third piston (4022) is installed at the bottom of the cooling box (401), and the second piston (4022) is sleeved inside the second piston cylinder (4021).
8. The wind power hub emergency brake protection device of claim 7, wherein: the cleaning assembly comprises a fixed shaft (4041), a rotating rod (4042) and a cleaning sponge (4043);
fixed axle (4041) is installed at the inside both ends of cooling box (401), fixed axle (4041) are used for fixing the clearance subassembly, a plurality of rotary rod (4042) has been cup jointed on fixed axle (4041), clearance sponge (4043) has been cup jointed on rotary rod (4042).
9. The wind power hub emergency brake protection device of claim 8, wherein: rotary rod (4042) are installed on fixed axle (4041) through rotatory gasbag (4044), rotatory gasbag (4044) inboard and fixed axle (4041) fixed connection, rotatory gasbag (4044) outside and rotary rod (4042) fixed connection, rotatory gasbag (4044) are the elasticity gasbag, rotatory gasbag (4044) inboard is provided with gas transmission pipeline (4045), a plurality of through-hole (4046) have been seted up to rotary rod (4042) both sides, through-hole (4046) outside is provided with inflation rubber (4047).
10. The wind turbine hub emergency brake protection device of claim 9, wherein: the thickness of the brake disc (2) is smaller than the width of the cooling box (401).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210776819.1A CN115370681A (en) | 2021-01-14 | 2021-01-14 | Wind power hub emergency braking protection device |
| CN202110050667.2A CN112901680B (en) | 2021-01-14 | 2021-01-14 | Wind-powered electricity generation wheel hub emergency braking protection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110050667.2A CN112901680B (en) | 2021-01-14 | 2021-01-14 | Wind-powered electricity generation wheel hub emergency braking protection device |
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| CN202210776819.1A Division CN115370681A (en) | 2021-01-14 | 2021-01-14 | Wind power hub emergency braking protection device |
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| CN112901680A true CN112901680A (en) | 2021-06-04 |
| CN112901680B CN112901680B (en) | 2022-10-11 |
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| CN202210776819.1A Pending CN115370681A (en) | 2021-01-14 | 2021-01-14 | Wind power hub emergency braking protection device |
| CN202110050667.2A Active CN112901680B (en) | 2021-01-14 | 2021-01-14 | Wind-powered electricity generation wheel hub emergency braking protection device |
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| CN202210776819.1A Pending CN115370681A (en) | 2021-01-14 | 2021-01-14 | Wind power hub emergency braking protection device |
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| Publication number | Publication date |
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| CN112901680B (en) | 2022-10-11 |
| CN115370681A (en) | 2022-11-22 |
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