CN118997990A - Combined wind power generation device capable of improving wind power utilization rate - Google Patents
Combined wind power generation device capable of improving wind power utilization rate Download PDFInfo
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- CN118997990A CN118997990A CN202411492593.8A CN202411492593A CN118997990A CN 118997990 A CN118997990 A CN 118997990A CN 202411492593 A CN202411492593 A CN 202411492593A CN 118997990 A CN118997990 A CN 118997990A
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- wind power
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- sleeve
- main shaft
- wind
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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
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
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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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels
- F03D1/053—Wind motors with rotation axis substantially parallel to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels comprising controllable elements, e.g. inlet valves or shutters
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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
- F03D15/00—Transmission of mechanical power
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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
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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)
- Power Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a combined wind power generation device for improving the wind power utilization rate, which belongs to the technical field of wind power generation, and comprises a tower, a cabin rotatably arranged on the top surface of the tower, a hub, an impeller, a main shaft, a gear box, a double-fed wind power generator set, an abutting wheel, an abutting adjusting mechanism, a vertical sleeve, a sliding sleeve, a rotating blade, an air duct opening and closing mechanism and a transmission switching mechanism, wherein the wind power generator set is arranged on the top surface of the tower; according to the invention, through the adjustment treatment of the abutting adjustment mechanism and the interaction of the air duct opening and closing mechanism and the transmission switching mechanism, the wind energy in the horizontal direction can be converted into the mechanical energy of the main shaft in a transmission mode through the arrangement of the rotating blades, so that the impeller and the rotating blades respectively carry out integrated capturing on the wind energy in the vertical direction and the wind energy in the horizontal direction in the natural world, thereby better converting the wind energy into the mechanical energy of the main shaft, and greatly improving the wind utilization rate in the natural world.
Description
Technical Field
The invention belongs to the technical field of wind power generation, and particularly relates to a combined wind power generation device for improving the wind power utilization rate.
Background
The wind power generation is a process of converting kinetic energy of wind into electric energy, and is a clean and renewable energy utilization mode, the wind power generation unit comprises a wind wheel, a transmission system, a generator, a tower, a control system, a yaw system, a cooling system and a braking system, the wind power generator captures wind energy through the wind wheel and converts the wind energy into mechanical energy, and the transmission system and the generator convert the mechanical energy into electric energy, so that renewable wind energy resources are utilized.
In the prior art, the wind wheel is driven by wind power to generate electricity, the wind speed is unstable due to the intermittence of natural wind and the variability of wind direction, so that the generated energy is influenced, the yaw system is used for enabling the wind wheel to be always aligned with the wind direction, so that the capturing efficiency of wind energy is improved, in addition, the wind wheel blades in the wind power generator can also realize accurate adjustment of the blade angles through the variable pitch system, so that the capturing efficiency of the wind energy is improved, and the wind power generator can capture better wind energy under the condition of low wind speed, namely, the wind power generator can work normally; when the wind wheel captures wind energy too much so that the rotating speed of the wind wheel is too high, the main shaft in the transmission system can also rotate at a high speed, the possibility of shaking the main shaft exists, and the stability of the main shaft in rotating when the main shaft captures wind energy along with the wind wheel is easily reduced.
Therefore, a combined wind power generation device for improving the wind power utilization rate is needed, and the problems of how to improve the wind power utilization rate of a main shaft in a rated rotation speed state and insufficient stability performance of the main shaft during high-speed rotation along with wind wheels when the main shaft captures wind power due to overlarge wind power in the wind power generation process in the prior art are solved.
Disclosure of Invention
The invention aims to provide a combined wind power generation device for improving the wind power utilization rate so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an improve combination wind power generation device of wind-force utilization ratio, includes the pylon and rotates the cabin of installing in the pylon top surface, still includes:
the hub is rotatably arranged on one side wall of the engine room, three impellers distributed at equal angles are arranged on the hub, a main shaft fixed at the center of the hub is arranged in the engine room, a gear box connected with the main shaft is arranged in the engine room, and one side, far away from the main shaft, of the gear box is connected with a doubly-fed wind power generator set through a coupling;
The mounting frame is provided with two bearing wheels which are symmetrically distributed along the axis of the main shaft, a plurality of bearing wheels which are contacted with the main shaft are arranged in the mounting frame, and a bearing adjusting mechanism is arranged between the two bearing wheels;
the vertical sleeve is fixed on the top surface of the engine room, the mounting frame is fixed on the inner wall of the vertical sleeve, the sliding sleeve penetrates through the center of the top surface of the mounting frame in a sliding mode, the rotating blades are fixedly sleeved on the outer surface of the top of the sliding sleeve, the air duct opening and closing mechanism matched with the rotating blades is arranged at the top of the vertical sleeve, and the transmission switching mechanism matched with the abutting adjusting mechanism is arranged between the sliding sleeve and the main shaft.
In the scheme, it is to be noted that the tight adjustment mechanism includes:
The fixed seats are provided with two fixed seats and are both fixed on the inner wall of the bottom of the cabin, a rotating gear is rotationally connected between the two fixed seats, the inner wall of the bottom of the cabin is provided with a stepping motor coaxially fixed with the rotating gear, a U-shaped rack bar is connected below the rotating gear in a meshed manner, and the top end of the U-shaped rack bar penetrates through the outer surface of the cabin in a sliding manner and is fixed with the outer surface of one of the mounting frames;
The pushing rod is arranged opposite to the U-shaped rack rod and penetrates through the outer surface of the engine room in a sliding mode, the bottom end of the pushing rod is fixed with the outer surface of the other installation frame, the L-shaped rack rod is connected with the upper portion of the rotating gear in a meshed mode, and the L-shaped rack rod is fixed with the bottom end of the pushing rod.
It is further worth to say that the wind channel mechanism that opens and shuts includes:
The sealing blocks are provided with two groups, each group of sealing blocks is rotatably arranged on the outer surface of the vertical sleeve at equal angles, the top of the vertical sleeve is provided with a plurality of opening and closing gears which are coaxially fixed with the sealing blocks one by one, a plurality of opening and closing gears positioned on the same side are jointly meshed and connected with arc-shaped rack bars, and the outer surfaces of the bottoms of the two arc-shaped rack bars are provided with limiting rings which are fixed with the top surface of the vertical sleeve;
The sealing cover is fixed on the top end of the vertical sleeve, the top surface of the sealing cover and the outer surface of the vertical sleeve are fixedly provided with guide rings, the outer surfaces of the end parts of the guide rings are communicated with an air inlet pipe, the outer surfaces of the end parts of the guide rings, which are far away from the air inlet pipe, are provided with air outlet channels, and the air outlet channels are provided with opening and closing pieces for synchronously rotating the two arc-shaped rack bars.
As a preferred embodiment, the opening and closing member includes:
the connecting block is matched with the air outlet channel and fixed with the top end of the pushing rod, and a pushing rack rod is fixed on the outer surface of the connecting block;
The pushing gears are arranged in two and are respectively connected with the outer tooth teeth on the two sides of the pushing rack rod in a meshed mode, and the pushing gears are coaxially and fixedly arranged with the opening and closing gears at the end portions of the arc-shaped rack rod.
As a preferable implementation mode, the outer surface of the end part of the sealing block extending out of the vertical sleeve is arranged in an arc surface, and the vertical section of the flow guide ring is arranged in a two-section isosceles trapezoid shape.
It should be further noted that the transmission switching mechanism includes:
The transmission sleeve is rotatably arranged on the top inner wall of the engine room, the outer surface of the bottom of the sliding sleeve extends to the top inner wall of the transmission sleeve, pressing pieces matched with the sliding sleeve are arranged among the plurality of plugging blocks, bevel gears are fixedly sleeved on the outer surfaces of the transmission sleeve and the main shaft, and the two bevel gears are in meshed connection;
The fixed lever, fixed lever is fixed in transmission sleeve's inner wall center department, sliding sleeve's inside is provided with the fastening and cup joints in the butt joint piece of fixed lever top surface, sliding sleeve's bottom inner wall is provided with the draw-in groove with butt joint piece looks adaptation, sliding sleeve's bottom surface rotates and inlays and is equipped with the rotating block, the surface of fixed lever is provided with the hold-down spring that is all fixed with rotating block and transmission sleeve opposite face.
As a preferred embodiment, the pressing member includes:
the pressing disc is positioned above the rotating blade and fixed with the top end of the sliding sleeve, and an extrusion block is attached to the outer surface of the top of the pressing disc;
the top surface and the bottom surface of the connecting plate are respectively fixed with the opposite surfaces of the pushing rack rod and the extrusion block.
As a preferred embodiment, the contact surface of the pressing disc and the pressing block is an adaptive cambered surface, and the projected circle diameter of the pressing disc is equal to the diameter of the vertical sleeve.
Compared with the prior art, the combined wind power generation device for improving the wind power utilization rate provided by the invention at least comprises the following beneficial effects:
(1) When capturing the wind energy of the vertical direction of nature through the impeller, it drives the main shaft and rotates in the inside of cabin, through supporting tight adjustment mechanism's adjustment processing and wind channel opening and shutting mechanism and transmission switching mechanism's mutually supporting, can be through rotor blade's setting, the wind energy of horizontal direction is converted into the mechanical energy of main shaft through the driven mode for impeller and rotor blade carry out the integration to the wind energy of vertical direction wind energy and horizontal direction in the nature respectively and catch, thereby convert its better mechanical energy into the main shaft, for follow-up through gear box and doubly fed wind generating set with mechanical energy turn into electric energy provide further guarantee, improved the wind utilization ratio to the nature greatly.
(2) Through supporting tight adjustment mechanism's regulation processing, drive wind channel opening and shutting mechanism and transmission switching mechanism and carry out synchronous operation, can make main shaft and a plurality of butt wheels carry out butt and transmission sleeve idle running, effectively improve the overspeed protection performance of main shaft under the too fast condition of wind speed, rotor blade both can realize dual closed protection through shutoff piece and pressing disc simultaneously, relieved again and main shaft between the transmission cooperation, formed the multiple protection to rotor blade, effectively ensured the stability of main shaft when high-speed operation.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a partial structure at the interior of the nacelle according to the invention;
FIG. 3 is a schematic view of the local structure of the main shaft, the vertical sleeve and the plugging block of the present invention;
FIG. 4 is a schematic view of the internal part structure of the guide ring of the present invention;
FIG. 5 is an enlarged schematic view of the area A of FIG. 4 according to the present invention;
FIG. 6 is a schematic view of a partial structure of the tight adjustment mechanism of the present invention;
FIG. 7 is an enlarged schematic view of the area B in FIG. 6 according to the present invention;
FIG. 8 is a schematic view of a partial structure of a mounting frame and an abutment wheel according to the present invention;
FIG. 9 is an enlarged schematic view of the structure of the area C in FIG. 8 according to the present invention;
FIG. 10 is a schematic view of a partially disassembled structure of an air duct opening and closing mechanism of the present invention;
FIG. 11 is a schematic view of the horizontal wind flow direction when the vertical sleeve is plugged by the plugging block according to the invention;
FIG. 12 is a schematic view of the vertical casing of the present invention with the closure block in an open position;
FIG. 13 is a schematic view of the position structure of a rotor blade when the butt joint block is butt-jointed with a clamping groove;
FIG. 14 is a schematic view of turning vane and horizontal wind flow direction when the vertical sleeve is opened by the plugging block according to the present invention;
FIG. 15 is a schematic view of the flow of horizontal wind over the pressure plate when the vertical sleeve is opened by the closure block of the present invention.
In the figure: 1. a tower; 2. a nacelle; 3. a hub; 4. an impeller; 5. a main shaft; 6. a gear box; 7. a doubly-fed wind generator set; 8. a mounting frame; 9. an abutment wheel; 10. a tight-propping adjusting mechanism; 101. a fixing seat; 102. rotating the gear; 103. a stepping motor; 104. a U-shaped rack bar; 105. a push rod; 106. an L-shaped rack bar; 11. a vertical sleeve; 12. a mounting frame; 13. sliding the sleeve; 14. rotating the blade; 15. an air duct opening and closing mechanism; 151. a block; 152. an opening and closing gear; 153. an arc-shaped rack bar; 154. a limiting ring; 155. sealing cover; 156. a guide ring; 157. an air inlet pipe; 158. an air outlet channel; 159. an opening and closing member; 1591. a connecting block; 1592. pushing the rack bar; 1593. pushing the gear; 16. a transmission switching mechanism; 161. a transmission sleeve; 162. a pressing member; 1621. pressing a disc; 1622. extruding a block; 1623. a connecting plate; 163. bevel gears; 164. a fixed rod; 165. a butt joint block; 166. a clamping groove; 167. a rotating block; 168. and (5) compressing the spring.
Detailed Description
The invention is further described below with reference to examples.
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure, and it is apparent that the described embodiments are some, but not all, embodiments of the present disclosure, and all other embodiments obtained by persons of ordinary skill in the art without inventive labor based on the described embodiments of the present disclosure are within the scope of protection of the present disclosure.
Unless otherwise defined, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs, the use of the terms "comprising" or "comprises" and the like in this disclosure is intended to mean that the element or article preceding the term encompasses the element or article listed after the term and equivalents thereof, without excluding other elements or articles, and that the terms "connected" or "connected" and the like are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect, "upper", "lower", "left", "right", etc. are merely intended to indicate relative positional relationships that may also be correspondingly altered when the absolute position of the object being described is altered.
Referring to fig. 1-15, the invention provides a combined wind power generation device for improving wind power utilization rate, which comprises a tower 1, a cabin 2 rotatably arranged on the top surface of the tower 1, and a hub 3, wherein the hub 3 is rotatably arranged on one side wall of the cabin 2, three impellers 4 distributed at equal angles are arranged on the hub 3, a main shaft 5 fixed at the center of the hub 3 is arranged in the cabin 2, a gear box 6 connected with the main shaft 5 is arranged in the cabin 2, and one side, far away from the main shaft 5, of the gear box 6 is connected with a double-fed wind power generator set 7 through a coupling;
it should be noted that, wind energy in nature is captured through the impeller 4, so that the hub 3 and the main shaft 5 synchronously rotate, the gear box 6 converts low-rotation-speed and high-torque mechanical energy transmitted by the main shaft 5 into high-rotation-speed and low-torque mechanical energy, and the mechanical energy is converted into electric energy through the double-fed wind generating set 7 through the coupling, so that the purpose of wind power generation is achieved;
It should be noted that the hub 3 is also provided with a pitch system for adjusting the angle of the impeller 4, so as to ensure that the impeller 4 is in optimal wind energy capturing capability under different wind speeds, the nacelle 2 is also provided with a yaw system for adjusting the overall angle of the nacelle 2 and the impeller 4, so that the impeller 4 is always aligned with the wind direction, the gear box 6 is positioned at one side of the main shaft 5 and is also provided with a brake system for stopping rotation of the impeller 4 in case of failure or emergency of the wind turbine, so as to ensure the safety of the wind turbine, and the pitch system and yaw system are not shown in the figure because the device involved in the scheme is in a small test stage, and the doubly fed wind generator set 7 is usually composed of a generator body and a cooling system, the core components of the generator body are a rotor, a stator and a bearing, the cooling system mainly comprises three structural types of water cooling, air cooling and air water cooling, an alternating-current excitation asynchronous generator is generally adopted by a doubly-fed wind turbine generator, a YSF160L-6 model doubly-fed wind turbine generator is preferred, the rotor is provided with a relatively independent alternating-current excitation winding, and the adjustable quantity of the doubly-fed wind turbine generator is provided with three excitation current amplitude values, excitation current phases and excitation current frequencies respectively, so that flexible excitation control can be performed to meet the running performance requirement of the generator, an incremental encoder is further arranged at the doubly-fed wind turbine generator, the real-time rotating speed of the doubly-fed wind turbine generator is measured, the impeller 4 and the hub 3 of the doubly-fed wind turbine generator can be replaced by a variable frequency asynchronous motor, the wind turbine generator is controlled by an ABB frequency converter, and the wind turbine generator is controlled by the ABB frequency converter;
the installation frame 8 is provided with two installation frames 8 and is symmetrically distributed along the axis of the main shaft 5, a plurality of abutting wheels 9 which are all contacted with the main shaft 5 are arranged in the installation frame 8, and a tight abutting adjusting mechanism 10 is arranged between the two abutting wheels 9;
It should be noted that, when the rotation acting force borne by the main shaft 5 is in the rated rotation speed running state, the plurality of abutting wheels 9 are far away from the main shaft 5 by the arrangement of the abutting wheels 9, so that the mechanical energy obtained by the main shaft 5 can be better converted into electric energy through the doubly-fed wind driven generator, and when the rotation speed of the main shaft 5 reaches the safety limit value too fast, the outer surfaces of the main shaft 5 are uniformly contacted by the abutting wheels 9 by the operation of the abutting adjustment mechanism 10, thereby realizing the overspeed protection of the main shaft 5 and being used for improving the stability of the main shaft 5 during running;
the vertical sleeve 11, the vertical sleeve 11 is fixed on the top surface of the engine room 2, the inner wall of the vertical sleeve 11 is fixed with the mounting frame 12, the center of the top surface of the mounting frame 12 is penetrated by the sliding sleeve 13 in a sliding way, the outer surface of the top of the sliding sleeve 13 is fixedly sleeved with the rotating blades 14, the top of the vertical sleeve 11 is provided with the air duct opening and closing mechanism 15 matched with the rotating blades 14, and the transmission switching mechanism 16 matched with the abutting adjusting mechanism 10 is arranged between the sliding sleeve 13 and the main shaft 5;
It should be noted that, when the main shaft 5 is in the rated rotation speed state, the abutting wheel 9 is adjusted to be far away from the main shaft 5 by the abutting adjusting mechanism 10, at the same time, the air duct opening and closing mechanism 15 and the transmission switching mechanism 16 synchronously move, so that the rotating blade 14 ascends along with the sliding sleeve 13 in the vertical sleeve 11, at the moment, the rotating blade 14 can synchronously rotate under the action of wind force in the horizontal direction by the transmission action of the air duct opening and closing mechanism, and when the rotating blade 14 ascends, the rotating blade 14 is switched under the transmission action of the transmission switching mechanism 16, so that the wind mechanical energy borne by the rotating blade 14 is switched under the transmission action of the transmission switching mechanism 16, so as to further improve the rotation smoothness of the main shaft 5;
when the spindle 5 is in the condition that the rotating shaft is too fast to the safety limit value, firstly, the abutting wheel 9 is contacted with the spindle 5 through the action of the abutting adjusting mechanism 10, then, the air inlet of the vertical sleeve 11 is closed through the matching action of the air duct opening and closing mechanism 15 and the transmission switching mechanism 16, meanwhile, the rotating blades 14 move downwards in the vertical sleeve 11 along with the sliding sleeve 13, so that the transmission matching action between the spindle 5 and the rotating blades 14 is relieved, meanwhile, the spindle 5 drives the structure below the rotating blades 14 to idle through the mechanical energy obtained by the wind turbine, so that part of the mechanical energy is lost, and then, the spindle 5 is subjected to overspeed protection during overspeed operation, and the operation stability of the spindle 5 at the moment is effectively ensured.
As further shown in fig. 1, 2, 3, 4, 7 and 8, it should be specifically explained that the abutment adjusting mechanism 10 includes a fixed seat 101, two fixed seats 101 are provided and fixed on the bottom inner wall of the nacelle 2, a rotation gear 102 is rotatably connected between the two fixed seats 101, a stepping motor 103 coaxially fixed with the rotation gear 102 is provided on the bottom inner wall of the nacelle 2, a U-shaped rack bar 104 is engaged and connected below the rotation gear 102, and the top end of the U-shaped rack bar 104 slides through the outer surface of the nacelle 2 and is fixed with the outer surface of one of the mounting frames 8;
The pushing rod 105 is arranged opposite to the U-shaped rack rod 104 and penetrates through the outer surface of the engine room 2 in a sliding manner, the bottom end of the pushing rod 105 is fixed with the outer surface of the other mounting frame 8, an L-shaped rack rod 106 is connected above the rotating gear 102 in a meshed manner, and the L-shaped rack rod 106 is fixed with the bottom end of the pushing rod 105;
By driving the stepping motor 103, the rotating gear 102 is rotated, and the U-shaped rack bar 104 and the L-shaped rack bar 106 are respectively engaged and connected below and above the rotating gear 102, so that the U-shaped rack bar 104 and the push bar 105 move in opposite directions along with the rotation of the rotating gear 102, that is, the two mounting frames 8 are separated from or approach to each other, and the spindle 5 is switched between the rated rotation speed state and the overspeed state, so that the outer surface of the abutting wheel 9 and the outer surface of the spindle 5 are subjected to the separation or contact adjustment treatment.
As further shown in fig. 1,2, 3, 5, 8, 9, 10, 11 and 12, it is worth specifically explaining that the air duct opening and closing mechanism 15 includes two sets of blocking blocks 151, each set of blocking blocks 151 is installed on the outer surface of the vertical sleeve 11 in an equiangular rotation manner, the top of the vertical sleeve 11 is provided with a plurality of opening and closing gears 152 which are fixed coaxially with the plurality of blocking blocks 151 one by one, the plurality of opening and closing gears 152 on the same side are jointly meshed and connected with arc-shaped rack bars 153, and the bottom outer surfaces of the two arc-shaped rack bars 153 are provided with limiting rings 154 which are fixed with the top surface of the vertical sleeve 11;
The sealing cover 155, the sealing cover 155 is fixed on the top end of the vertical sleeve 11, a guide ring 156 is fixed on the top surface of the sealing cover 155 and the outer surface of the vertical sleeve 11, an air inlet pipe 157 is communicated with the outer surface of the end part of the guide ring 156, an air outlet channel 158 is arranged on the outer surface of the end part of the guide ring 156 far away from the air inlet pipe 157, and an opening and closing piece 159 for synchronously rotating the two arc-shaped rack rods 153 is arranged at the air outlet channel 158;
the opening and closing piece 159 comprises a connecting block 1591, the connecting block 1591 is matched with the air outlet channel 158 and fixed with the top end of the pushing rod 105, and a pushing rack rod 1592 is fixed on the outer surface of the connecting block 1591;
The pushing gear 1593, the pushing gear 1593 is provided with two pushing gears 1593 which are respectively meshed with the external tooth teeth on two sides of the pushing rack bar 1592, and the pushing gears 1593 and the opening and closing gear 152 positioned at the end part of the arc rack bar 153 are coaxially and fixedly arranged;
It should be noted that, the rotating gear 102 is driven by the stepping motor 103 until the abutting wheel 9 contacts with the main shaft 5, and the pushing rod 105 drives the connecting block 1591 and the pushing rack 1592 to move synchronously towards the center of the vertical sleeve 11 through the meshing transmission action of the rotating gear 102 and the L-shaped rack bar 106, and at this time, the arc-shaped rack bars 153 on two sides rotate towards the far direction near the pushing rack bar 1592 through the meshing transmission action of the pushing rack bar 1592 and the pushing gear 1593, and the sealing blocks 151 on the same side rotate towards the same direction through the meshing transmission action of the arc-shaped rack bars 153 and the opening and closing gears 152, so that the sealing treatment of the sealing blocks 151 on the top of the vertical sleeve 11 is realized, and the rotating blades 14 are not influenced by external wind force in the vertical sleeve 11, so that the primary protection of the rotating blades 14 is realized;
When the stepping motor 103 drives the abutting wheel 9 to be out of contact with the main shaft 5, the pushing rod 105 moves outwards at the cabin 2, the pushing rod 105 drives the connecting block 1591 and the pushing rack rod 1592 to synchronously move towards the periphery of the vertical sleeve 11, the movement mode of the blocking blocks 151 is opposite to the movement process, namely, the blocking blocks 151 on two sides form opening treatment on the top of the vertical sleeve 11, and the rotating blades 14 rotate through wind power conveyed in the guide ring 156 at the air inlet pipe 157, so that the rotating blades 14 rotate, mechanical energy generated by rotation of the rotating blades 14 is transmitted to the main shaft 5 through the cooperation of the transmission switching mechanism 16, and the utilization rate of the mechanical energy of the main shaft 5 in a rated rotation speed state is further improved.
As further shown in fig. 5, 9, 10 and 12, it should be noted that, the outer surface of the end portion of the plugging block 151 extending out of the vertical sleeve 11 is in a cambered surface, and the vertical section of the guide ring 156 is in a two-section isosceles trapezoid;
When the air inlet channel of the rotor blade 14 is opened by the blocking block 151, wind power is conveyed through the air inlet pipe 157, so that a wind power flow channel is formed in the guide ring 156, and wind power can enter from the air inlet channel better by the arrangement of the arc surface of the blocking block 151, so that the wind power capturing capability of the rotor blade 14 to the vertical sleeve 11 is improved to a certain extent.
As further shown in fig. 3,4, 7, 9, 10, 12 and 13, it is worth specifically explaining that the transmission switching mechanism 16 includes a transmission sleeve 161, the transmission sleeve 161 is rotatably mounted on the top inner wall of the nacelle 2, the bottom outer surface of the sliding sleeve 13 extends to the top inner wall of the transmission sleeve 161, pressing pieces 162 matched with the sliding sleeve 13 are arranged between the plurality of plugging blocks 151, bevel gears 163 are tightly sleeved on the outer surfaces of the transmission sleeve 161 and the main shaft 5, and the two bevel gears 163 are in meshed connection;
The fixed rod 164, the fixed rod 164 is fixed in the centre of the inner wall of the transmission sleeve 161, the inside of the sliding sleeve 13 is provided with a butt joint block 165 which is fastened and sleeved on the outer surface of the top of the fixed rod 164, the bottom inner wall of the sliding sleeve 13 is provided with a clamping groove 166 which is matched with the butt joint block 165, the bottom outer surface of the sliding sleeve 13 is rotationally embedded with a rotating block 167, and the outer surface of the fixed rod 164 is provided with a compression spring 168 which is fixed on the opposite surfaces of the rotating block 167 and the transmission sleeve 161;
the pressing piece 162 comprises a pressing disc 1621, the pressing disc 1621 is positioned above the rotating blade 14 and is fixed with the top end of the sliding sleeve 13, and an extrusion block 1622 is attached to the outer surface of the top of the pressing disc 1621;
The connecting plate 1623, the top and bottom surfaces of the connecting plate 1623 are respectively fixed with the opposite surfaces of the pushing rack bar 1592 and the pressing block 1622;
The contact surface of the pressing disc 1621 and the pressing block 1622 is an adaptive cambered surface, and the projected circle diameter of the pressing disc 1621 is equal to the diameter of the vertical sleeve 11;
It should be noted that, when the sealing block 151 seals the vertical sleeve 11, the rack rod 1592 is pushed to drive the connecting plate 1623 and the pressing block 1622 to move simultaneously, and the pressing block 1622 presses the cambered surface of the pressing plate 1621 to enable the pressing plate 1621, the rotating vane 14 and the sliding sleeve 13 to move downward synchronously, and the sealing block 151 of the vertical sleeve 11 is sealed by the pressing plate 1621, so as to further improve the protection of the rotating vane 14;
When the pressing disk 1621, the rotating blade 14 and the sliding sleeve 13 move downwards, the bottom of the sliding sleeve 13 compresses the compression spring 168 through the rotating block 167 until the butt joint block 165 and the clamping groove 166 of the sliding sleeve 13 form an up-down separation process;
When the main shaft 5 is in an overspeed state to a safety limit value, the bevel gear 163 on the main shaft 5 drives the transmission sleeve 161 to rotate on the top inner wall of the cabin 2 through the meshing transmission action of the bevel gear 163 on the transmission sleeve 161, and meanwhile, the fixed rod 164 in the transmission sleeve 161 synchronously rotates, because the rotating block 167 is in a rotatable state at the bottom of the sliding sleeve 13, the abutting block 165 and the abutting groove are separated up and down, at the moment, the rotating blades 14 do not synchronously rotate along with the rotation of the transmission sleeve 161, namely, part of mechanical energy generated by the main shaft 5 through a wind turbine is used for idling at the transmission sleeve 161, so that the protection processing of the main shaft 5 and the separation protection of the rotating blades 14 are formed in the overspeed state, the yaw system arranged in the random cabin 2 of the air inlet pipe 157 is deflected and adjusted, at the moment, the air inlet direction of the air inlet pipe 157 is vertical air inlet as shown in fig. 11, at the moment, the air in the horizontal direction enters vertically from the air inlet pipe 157 and passes through the inner flow passage of the guide ring 156, and is discharged from the air outlet passage 158;
It should be noted that when the vertical sleeve 11 is opened by the blocking block 151, the sliding sleeve 13 moves up in the transmission sleeve 161 by the elastic force of the compression spring 168, and the abutting block 165 and the clamping groove 166 are engaged with each other, and the sliding sleeve 13 drives the rotating blade 14 and the pressing disc 1621 to move upward, so that the wind force transmitted from the guide ring 156 forms a communication process at the rotating blade 14, and the wind force can also drive the rotating blade 14 to rotate, so as to drive the transmission sleeve 161 to rotate synchronously, and the smooth rotation of the spindle 5 in the rated rotation speed state is achieved by the meshing transmission action of the two bevel gears 163, and in addition, the wind between the top surface of the pressing disc 1621 and the bottom surface of the sealing cover 155 enters from the blocking block 151 at the air inlet pipe 157 until being discharged from the air outlet channel 158, as shown in fig. 15.
The scheme comprises the following working processes: when wind energy in the vertical direction of the nature is captured by the impeller 4, the main shaft 5 is driven to rotate in the cabin 2, at the moment, the abutting wheel 9 is far away from the main shaft 5 through the adjustment treatment of the abutting adjustment mechanism 10, as the air inlet pipe 157 and the cabin 2 are integrally arranged, when the cabin 2 deflects along with the yaw system, the air inlet direction of the air inlet pipe 157 and the wind energy in the vertical direction captured by the impeller are in the optimal state, at the moment, the air inlet direction of the air inlet pipe 157 is at the optimal angle, and as the rotating blades 14 rotate in a circular manner, the air inlet direction of the rotating blades 14 at the moment is better than the air inlet direction of the vertical air inlet through the inclined angle, the top of the vertical guide pipe is opened by the plugging block 151 through the interaction of the air duct opening and closing mechanism 15 and the transmission switching mechanism 16, and meanwhile, the sliding sleeve 13 acts along with the transmission action of the transmission switching mechanism 16, the rotating blades 14 and the pressing discs 1621 are arranged in the middle of the plurality of blocking blocks 151, as shown in fig. 12 and 13, the rotating blades 14 form a pressing type clamping process through the sliding sleeve 13 and the transmission sleeve 161, namely, the wind power in the horizontal direction in nature is transmitted through the rotation of the rotating blades 14 and the meshing transmission of the two bevel gears 163, at the moment, the rotating blades 14 are shown in fig. 14, namely, the sliding sleeve 13 and the vertical sleeve 161 are driven to synchronously rotate, the wind power in the horizontal direction is converted into the mechanical energy of the main shaft 5 through the transmission of the two bevel gears 163, the impeller 4 and the rotating blades 14 respectively integrally capture the wind power in the vertical direction and the wind power in the horizontal direction in nature, namely, the wind power in the horizontal direction and the wind power in the vertical direction drive the main shaft 5 to rotate in the same direction, thereby better converting the mechanical energy into mechanical energy of the main shaft 5, providing further guarantee for converting the mechanical energy into electric energy through the gearbox 6 and the doubly-fed wind generating set 7, and greatly improving the wind power utilization rate in the nature;
When in the bad weather that the wind speed is too fast, impeller 4 reduces the capture of wind energy in the nature through the dual action of pitch system and yaw system this moment, this moment is through the adjustment processing of tight adjustment mechanism 10, make a plurality of butt wheels 9 fully contact with main shaft 5 this moment, simultaneously wind channel switching mechanism 15 and transmission switching mechanism 16 carry out synchronous operation, this moment the shutoff piece 151 carries out the seal processing to the top department of perpendicular sleeve pipe 11, and the wind-force that carries through air-supply line 157 department carries out the flow processing through water conservancy diversion ring 156 and the wind-force runner of perpendicular sleeve pipe 11, simultaneously pressure dish 1621 drives rotor blade 4 and seals the protection processing to rotor blade 14 in perpendicular sleeve pipe 11 downward movement for pressure dish 1621 moves to the below of shutoff piece 151, slide sleeve pipe 13 is easy to remove synchronous rotation effect between the transmission sleeve 161 this moment, this moment main shaft 5 and a plurality of butt wheels 9 butt, simultaneously transmission sleeve 161 idle through the transmission of two bevel gears 163, effectively improve the overspeed protection performance under the weather that main shaft 5 is at the high-speed rotates, the stability of main shaft 5 both can be through the shutoff piece and the dual, the multiple protection of the shutoff piece is realized to rotor blade 14 has been removed to the multiple cooperation between the shutoff piece 1621 and the shutoff piece 151 again.
The working process can be as follows: when the impeller 4 captures wind energy in the vertical direction in the nature, the impeller drives the main shaft 5 to rotate in the cabin 2, and through the adjustment treatment of the abutting adjusting mechanism 10 and the mutual cooperation of the air duct opening and closing mechanism 15 and the transmission switching mechanism 16, the wind energy in the horizontal direction can be converted into the mechanical energy of the main shaft 5 in a transmission mode through the arrangement of the rotating blades 14, so that the impeller 4 and the rotating blades 14 respectively capture the wind energy in the vertical direction and the wind energy in the horizontal direction in the nature in an integrated manner, and the wind energy is better converted into the mechanical energy of the main shaft 5, so that further guarantee is provided for converting the mechanical energy into electric energy through the gearbox 6 and the doubly fed wind generator set 7, and the wind utilization rate in the nature is greatly improved;
Under the dual action of the pitch system and the yaw system, the impeller 4 reduces capturing of wind energy in nature, the air duct opening and closing mechanism 15 and the transmission switching mechanism 16 are driven to synchronously operate through the adjustment treatment of the abutting adjusting mechanism 10, so that the main shaft 5 abuts against the plurality of abutting wheels 9 and the transmission sleeve 161 idles, the overspeed protection performance of the main shaft 5 under the condition of too fast wind speed is effectively improved, meanwhile, the rotating blades 14 can realize dual closed protection through the blocking blocks 151 and the pressing disc 1621, transmission cooperation with the main shaft 5 is relieved, multiple protection on the rotating blades 14 is formed, and the stability of the main shaft 5 during high-speed operation is effectively guaranteed.
The previous description of the disclosed embodiments, to enable any person skilled in the art to make or use the present invention, is provided that it will be apparent to those skilled in the art that various modifications may be made to these embodiments and that the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention, and therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119122742A (en) * | 2024-08-30 | 2024-12-13 | 舟山凯智工业科技有限公司 | Wind power generation device and wind power generation system |
| CN120312481A (en) * | 2025-06-16 | 2025-07-15 | 海南惠利电力设备有限公司 | A Separate Adaptive Wind Turbine Generator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005030238A (en) * | 2003-07-08 | 2005-02-03 | Cosmo Plant Kk | Power generating device using impeller |
| CN204301245U (en) * | 2014-05-27 | 2015-04-29 | 东北大学 | The novel energy-conserving ventilation device of wind-drive |
| KR20150145868A (en) * | 2014-06-19 | 2015-12-31 | 김다원 | Airflow control it using arrow keys, and a turbo-fan wind turbine generator |
| CN108005851A (en) * | 2018-01-22 | 2018-05-08 | 薛建武 | A kind of new vertical wind-force heat energy power-generating system |
| CN212429091U (en) * | 2020-06-10 | 2021-01-29 | 大唐郏县风力发电有限责任公司 | Double-wheel wind driven generator |
| CN216518391U (en) * | 2021-11-30 | 2022-05-13 | 百立建设集团有限公司 | Steering device for wind power generation |
-
2024
- 2024-10-24 CN CN202411492593.8A patent/CN118997990B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005030238A (en) * | 2003-07-08 | 2005-02-03 | Cosmo Plant Kk | Power generating device using impeller |
| CN204301245U (en) * | 2014-05-27 | 2015-04-29 | 东北大学 | The novel energy-conserving ventilation device of wind-drive |
| KR20150145868A (en) * | 2014-06-19 | 2015-12-31 | 김다원 | Airflow control it using arrow keys, and a turbo-fan wind turbine generator |
| CN108005851A (en) * | 2018-01-22 | 2018-05-08 | 薛建武 | A kind of new vertical wind-force heat energy power-generating system |
| CN212429091U (en) * | 2020-06-10 | 2021-01-29 | 大唐郏县风力发电有限责任公司 | Double-wheel wind driven generator |
| CN216518391U (en) * | 2021-11-30 | 2022-05-13 | 百立建设集团有限公司 | Steering device for wind power generation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119122742A (en) * | 2024-08-30 | 2024-12-13 | 舟山凯智工业科技有限公司 | Wind power generation device and wind power generation system |
| CN120312481A (en) * | 2025-06-16 | 2025-07-15 | 海南惠利电力设备有限公司 | A Separate Adaptive Wind Turbine Generator |
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