CN112145364A - Magnetic suspension wind generating set - Google Patents
Magnetic suspension wind generating set Download PDFInfo
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- CN112145364A CN112145364A CN202010799334.5A CN202010799334A CN112145364A CN 112145364 A CN112145364 A CN 112145364A CN 202010799334 A CN202010799334 A CN 202010799334A CN 112145364 A CN112145364 A CN 112145364A
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- 239000000725 suspension Substances 0.000 title claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 45
- 230000005611 electricity Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 description 23
- 239000012530 fluid Substances 0.000 description 21
- 238000005339 levitation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000011553 magnetic fluid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001052 transient effect Effects 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
- 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
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
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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
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/22—Foundations specially adapted for wind motors
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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
- F03D15/10—Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
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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
- F03D7/0204—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
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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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- 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
-
- 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
- Y02E10/728—Onshore wind turbines
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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 magnetic suspension wind generating set which comprises an aerial component, a supporting component and a ground component, wherein the bottom end of the supporting component is connected with the ground component, the top of the supporting component is connected with the aerial component, the ground component comprises a generator used for generating electricity, and the aerial component transmits power to the generator through transmission. The aerial part comprises fan blades, a machine head and a tail rudder, wherein the fan blades and the tail rudder are respectively arranged at the horizontal two ends of the machine head; the supporting part comprises a supporting column, a supporting disc, a thrust bearing and a radial bearing, the top of the supporting column is connected with the supporting disc, the machine head is installed on the supporting disc, the lower portion of the machine head is disc-shaped, the thrust bearing used for vertically supporting the machine head is arranged on the upper surface of the supporting disc, and the central portion of the supporting disc is provided with the radial bearing used for horizontally limiting the machine head. The tail rudder can be used for centering the wind direction after yawing by arranging the generator below, so that the weight of parts in the air is greatly reduced, the wind blade shaft is supported by magnetic suspension, the resistance is reduced, and the wind energy harvested by the wind blades is converted into the generator in a large proportion.
Description
Technical Field
The invention relates to the field of wind power generation, in particular to a magnetic suspension wind generating set.
Background
Wind power is a clean renewable energy source, and with global importance on the environment, international agreements reduce the use of fossil fuels. Clean energy sources such as wind energy, water energy, tidal energy, geothermal energy, solar energy and the like are vigorously advocated.
Wind energy is obtained through a wind generating set, in the prior art, the wind generating set for high-power generation is generally in a horizontal shaft form, a generator is arranged in a machine head behind fan blades, and the fan blades are blown by wind to drive the generator to generate power.
There are several problems in the use: 1. the wind direction needs to be aligned in the operation process, so that the position of the generator is also continuously adjusted, the electric energy is output through a cable, the output cable needs to have a structure for preventing twisting, otherwise, the cable can be twisted and even broken along with the rotation of the machine head for centering the wind direction for multiple times; 2. the nose part is very heavy, so that after the wind direction is changed, a yaw system with higher power is needed for centering, and the weight of the nose part is increased again by a complicated yaw system; 3. the aerial parts have heavy weight, the strength requirement on the supporting column is very high, and the manufacturing cost of the wind turbine generator is high.
Disclosure of Invention
The invention aims to provide a magnetic suspension wind generating set to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a magnetic suspension wind generating set comprises an aerial component, a supporting component and a ground component, wherein the aerial component is installed at the top of the supporting component, the bottom end of the supporting component is connected with the ground component, the ground component comprises a generator used for generating electricity, and the aerial component transmits power to the generator through a transmission component for generating electricity.
The generator is arranged in the ground assembly, the generator is arranged below the ground assembly, the weight of the aerial part of the wind turbine generator is greatly reduced, the load of a supporting component can be reduced, the anti-twisting treatment of an output cable is not needed, the ground assembly comprises a base and a base, the generator is arranged in the base, wind energy obtained by the aerial component is transmitted into the generator through a transmission assembly to generate electricity, the generator does not follow the aerial component to perform yaw centering any more after being arranged below the generator, the position of the generator is always fixed, and therefore the output cable is fixed outwards.
Further, the aerial part comprises a fan blade, a machine head and a tail rudder, wherein the fan blade and the tail rudder are respectively arranged at the two horizontal ends of the machine head; the supporting part comprises a supporting column, a supporting disc, a thrust bearing and a radial bearing, the top of the supporting column is connected with the supporting disc, the machine head is installed on the supporting disc, the lower portion of the machine head is disc-shaped, the thrust bearing used for vertically supporting the machine head is arranged on the upper surface of the supporting disc, and the central portion of the supporting disc is provided with the radial bearing used for horizontally limiting the machine head.
Because the generator is arranged below, the aerial part can be made lighter, so that the fan blades can be aligned to the wind direction only by using the tail rudder, when the wind direction of external natural wind and the fan blades have angular deviation in operation, the wind can blow the tail rudder, the tail rudder is blown by asymmetric wind, the rotation trend is achieved, the machine head is driven to rotate, the fan blades are aligned to the wind direction again, the wind direction can be aligned to the aerial part again, and the generator can be realized only under the condition that the aerial part is lighter, and the generator is arranged below. The thrust bearing and the radial bearing are parts which play a supporting role, the friction force is reduced, and the tail rudder is used for replacing a traditional yawing system, so that the great weight can be saved on the yawing function, the load of the supporting parts is reduced again, the strength requirement is not high, and the material cost is also reduced.
The machine head further comprises a machine shell, a fan blade shaft, radial magnetic suspension supports, an axial magnetic limit and a first bevel gear, wherein one end of the fan blade shaft is inserted into the machine shell, one end of the fan blade shaft is exposed outside and is provided with a plurality of fan blades in the radial direction, stator parts of the radial magnetic suspension supports and the axial magnetic limit are arranged on the inner surface of the machine shell, rotor parts of the radial magnetic suspension supports and the axial magnetic limit are arranged on the surface of the fan blade shaft, at least two groups of radial magnetic suspension supports form the fan blade shaft into a cantilever shaft form, and the first bevel gear is sleeved on the middle part of the fan blade shaft in the machine shell;
the supporting component also comprises a force transmission shaft, the force transmission shaft vertically penetrates through the supporting column and the supporting disc, a second bevel gear is arranged at the top end of the force transmission shaft, and the second bevel gear is in meshed connection with the first bevel gear; the lower end of the force transmission shaft is connected with an input shaft of the generator through a coupler.
The fan blade shaft is driven by the fan blades to rotate, power is transmitted to the first bevel gear, then the power is transmitted to the second bevel gear to drive the power transmission shaft to rotate, and the two bevel gears and the power transmission shaft are the transmission assembly, so that the structure is simple and compact, and no surplus exists; let the fan blade axle support through the magnetic suspension, the rotation resistance reduces greatly for the wind-force can be used for the electricity generation of big proportion, reduces the friction loss, and one raises the efficiency, can reduce to generate heat, and after the generator has shifted out the space part, aerial part no longer need heat radiation structure, and external wind can cool down aerial part completely. At least two groups of radial magnetic suspension support double ends support the fan blade shaft, axial movement is limited through axial magnetic limiting, the axial magnetic limiting is a group of magnets with inclined magnetic force directions, and after the magnetic force directions are inclined, axial component force of supporting force plays a role in limiting axial movement.
Furthermore, the tail rudder comprises a main tail wing and an auxiliary tail wing, the machine head further comprises a lock pin, the lock pin is installed in the machine shell, the main tail wing is fixed to the tail portion of the machine head, the auxiliary tail wing is movably connected to the main tail wing, the auxiliary tail wing can generate angle deviation with the main tail wing and transmit the angle deviation to the lock pin through a first signal line, pin holes are evenly distributed on the circumference of the upper surface of the supporting plate, the lock pin is an executing piece, the lock pin vertically retracts a lock pin rod after the angle deviation signal transmitted by the auxiliary tail wing is obtained, the lock pin rod is inserted into the pin holes when other conditions exist, the head of the lock pin is in a conical shape, and the pin holes are conical holes.
In the process that the fan blade shaft transmits power to the second bevel gear through the first bevel gear, if only one first bevel gear is arranged and the machine head is not limited in rotation around the force transmission shaft, the fan blade shaft can revolve around the force transmission shaft in the self-rotation process, so that the fan blade deviates from the wind direction; the problem can be solved by adding the number of the first bevel gears and manufacturing the related structures of the first bevel gears into a blade form similar to a double-oar coaxial helicopter, and the conservation of angular momentum is realized in the rotating process, so that only the rotating power is transmitted to the force transmission shaft, and the revolution around the force transmission shaft is eliminated, but the structure of the blade form similar to the double-oar coaxial helicopter in a shell is more complex, so the invention adopts a rotating limit form, the rotating limit is completed by a lock pin and a pin hole, when the fan blade is aligned to the wind direction and normally rotates to generate electricity, the lock pin is inserted into the pin hole, the revolution around the force transmission shaft of the machine head is prevented, when the wind direction deviates, the lock pin is withdrawn and separated from the pin hole, the machine head is driven by a tail vane to face the wind, the main tail vane is fixed with the shell, the direction of the main tail vane is the direction of the fan blade, the auxiliary tail vane is movably arranged on the main tail vane and can rotate with, therefore, the angle deviation of the main tail wing and the auxiliary tail wing can indicate that the fan blades are not facing the wind, the connecting part of the main tail wing and the auxiliary tail wing is provided with a triggering part in the form of an angle sensor or a rotary contact and the like, so that after the angle deviation of the main tail wing and the auxiliary tail wing occurs, a signal is given and transmitted into the lock pin through the first signal line, the angle deviation of the main tail wing and the auxiliary tail wing exists, the lock pin is separated from the pin hole, and the machine head is in a rotatable state. In order to prevent the deviation of the main and auxiliary tail wings caused by the transient change or fluctuation of the wind direction, a delay circuit can be arranged in the lock pin, and the lock pin rod of the lock pin is driven to retract only after a signal of a first signal line lasting for more than a period of time is obtained. After the fan blade is centered, the main tail wing and the auxiliary tail wing are consistent in angle again, the pin rod of the lock pin is inserted into the pin hole again, and the rotation of the machine head is locked.
Furthermore, an annular yaw shockproof groove is formed in the upper surface of the supporting plate, ring teeth are arranged on the lower surface of the machine shell and extend into the yaw shockproof groove, and non-Newtonian fluid is filled in the yaw shockproof groove.
The angle deviation of the main and auxiliary tail wings is subjected to yaw identification, and when the external wind fluctuates, the delayed yaw is performed through a delay circuit, so that the locking pin is prevented from being stretched frequently due to wind fluctuation; at the end of the fan blade centering process, the locking pin can be inserted into the pin hole to generate impact due to small-angle fluctuation of wind power, so that the ring teeth are inserted into the non-Newtonian fluid in the yaw shockproof groove, the non-Newtonian fluid is a fluid with a shear stress and a shear strain rate which are not in a linear relation, the shear-enhanced non-Newtonian fluid is selected, when the force applied to the non-Newtonian fluid by the ring teeth is caused by instantaneous fluctuation, the non-Newtonian fluid is very hard and stops rotating, only when the main tail wing and the wind direction have a definite directional angle deviation, the force applied to the non-Newtonian fluid by the ring teeth is kept in one direction, the non-Newtonian fluid can rotate, the head shaking caused by the fluctuation of the wind power at the end of the wind power process is eliminated by the addition of the non-Newtonian fluid, and the; although the main tail wing does not shake any more, the auxiliary tail wing shakes due to the moment wind, the output condition of the first signal line can be controlled by setting an angle deviation threshold value of the main and auxiliary tail wings, and at the end of the wind aligning process, the angle deviation of the main and auxiliary tail wings is very small, the wind aligning process is considered to be completed, and the first signal line does not give a lock pin signal any more.
Furthermore, the magnetic suspension wind generating set also comprises a second signal wire, one end of the second signal wire is connected with the pin hole, the other end of the second signal wire is connected into the generator, one end of the second signal wire is connected with the pin hole, a contact terminal is arranged at one end of the second signal wire, and when the lock pin is separated from the pin hole, a signal is sent to the generator to enable the generator to unload loads.
During the wind process, the lock pin is disengaged from the pin hole, the rotation locking of the machine head is unlocked, but the fan blade can rotate, the rotation force applied to the machine head can be obtained through the rotation meshing process of the first bevel gear and the second bevel gear, the rotation force is superposed on the wind power of the tail rudder, and therefore the wind power of the tail rudder is not required to be obtained: the wind blade shaft is stopped to rotate by a certain means, or the resistance on the force transmission shaft is removed, so that the wind blade shaft and the force transmission shaft are in an idle running state, the wind facing process of the machine head is not influenced, the latter mode is better, the wind blade shaft and the force transmission shaft are locked, the wind facing is required to be restarted after the wind facing is finished, the starting torque of the generator is larger than the resisting torque in normal running, the load of the generator is removed, the force transmission shaft idles, the generator can be not required to be restarted, the realization of the mode needs to interlock the state of the generator and the wind facing process, the second signal wire achieves the purpose, one end of the second signal wire is connected with the pin hole, the other end of the second signal wire is connected into the generator, one end of the second signal wire connected with the pin hole is provided with a contact terminal, and when the lock pin is separated from the pin hole, a signal.
Preferably, the machine head further comprises a shaft seal, and the shaft seal is arranged at the position where the fan blade shaft penetrates through the machine shell. The shaft seal seals the space in the machine head and the outside atmosphere, and prevents dust from entering to influence the operation effect of the gear and the magnetic suspension support.
Preferably, the shaft seal is a magnetic fluid seal. The magnetic fluid has good sealing performance and almost no rotation resistance. And the loss of the wind power in the process of transmitting the wind power to the generator is reduced.
As optimization, the supporting columns are in a sectional assembly form. Because aerial parts are light, the strength requirement of the support column is not so high, the support strength is not guaranteed by the integral structural form, and the sectional assembly form is convenient to transport.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the generator is arranged below, so that the weight of the aerial part is greatly reduced, the tail rudder can be used for centering the wind direction after yawing, the complexity of a yawing system is reduced again, the weight of the aerial part is reduced, the fan blades and the fan blade shafts can be supported by magnetic levitation, the rotation resistance is greatly reduced, and the wind energy harvested by the fan blades is converted into the generator in a large proportion; the arrangement mode of the main and auxiliary tail wings is cooperated with the lock pin, and the non-Newtonian fluid filled in the yaw shockproof groove and the ring teeth inserted in the yaw shockproof groove are matched, so that the yaw calibration effect can be achieved, and the locking impact and the like caused by wind fluctuation at the end of the wind facing process can be eliminated; the greatly simplified machine head part has small weight, the strength requirement of the support column is not as high, the manufacturing simplification and the strength requirement reduction of all parts can reduce the cost, and the support column installed in sections is convenient to transport.
Drawings
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the top of the airborne components and support components of the present invention with the tail rudder removed;
FIG. 3 is a schematic structural view of the tail rudder of the present invention;
FIG. 4 is a schematic view of the construction of the lower portion of the support member and ground assembly of the present invention;
FIG. 5 is a schematic view of the configuration of the ring gear and the yaw shockproof slots of the present invention;
FIG. 6 is a schematic view of the yaw locking principle of the locking pin and pin hole of the present invention.
In the figure: 1-aerial part, 11-fan blade, 12-machine head, 121-machine shell, 1211-annular tooth, 122-fan blade shaft, 123-shaft seal, 124-radial magnetic suspension support, 125-axial magnetic limit, 126-first bevel gear, 127-lock pin, 14-tail rudder, 141-main tail wing, 142-auxiliary tail wing, 2-support part, 21-support column, 22-support disc, 221-yaw shockproof groove, 222-pin hole, 23-thrust bearing, 24-radial bearing, 25-force transmission shaft, 251-second bevel gear, 3-ground component, 31-base, 32-generator, 33-base, 91-first signal line, 92-second signal line and 93-output cable.
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.
As shown in figure 1, the magnetic suspension wind generating set comprises an air component 1, a supporting component 2 and a ground component 3, wherein the air component 1 is installed at the top of the supporting component 2, the bottom end of the supporting component 2 is connected with the ground component 3, the ground component 3 comprises a generator 32 for generating electricity, and the air component 1 transmits power to the generator 32 through a transmission component for generating electricity.
According to the invention, the generator 32 is arranged in the ground component 3, the generator 32 is arranged at the bottom, so that the weight of the aerial part of the wind turbine generator is greatly reduced, firstly, the load of the supporting component 2 can be reduced, secondly, the anti-twisting treatment of the output cable 93 is not required, as shown in figure 4, the ground component 3 comprises the base 31 and the base 33, the generator 32 is arranged in the base 31, the wind energy obtained by the aerial component 1 is transmitted into the generator 32 through the transmission component for generating electricity, after the generator 32 is arranged, the generator does not follow the aerial component 1 for yaw centering, the position is always fixed, and therefore, the output cable 93 is externally also fixed.
As shown in fig. 1-2, the aerial part 1 comprises a fan blade 11, a nose 12 and a tail rudder 14, wherein the fan blade 11 and the tail rudder 14 are respectively installed at the two horizontal ends of the nose 12; the supporting component 2 comprises a supporting column 21, a supporting disc 22, a thrust bearing 23 and a radial bearing 24, the top of the supporting column 21 is connected with the supporting disc 22, the head 12 is mounted on the supporting disc 22, the lower portion of the head 12 is disc-shaped, the thrust bearing 23 for vertically supporting the head 12 is arranged on the upper surface of the supporting disc 22, and the radial bearing 24 for horizontally limiting the head 12 is arranged in the center of the supporting disc 22.
Because the generator 32 is arranged below, the aerial part 1 can be made lighter, so that the fan blades 11 can be aligned to the wind direction only by using the tail rudders 14, when the wind direction of external natural wind and the fan blades have angular deviation in operation, the wind can blow the tail rudders 14, the tail rudders 14 are blown by asymmetric wind, and the wind generator has a rotating trend, drives the machine head 12 to rotate, so that the fan blades 11 are aligned to the wind direction again, and the wind generator can be realized only under the condition that the aerial part 1 is lighter, and is in line with the characteristic of the arrangement below of the generator 32. The thrust bearing 23 and the radial bearing 24 are supporting parts, so that friction force is reduced, and as the tail rudder 14 is used for replacing a traditional yaw system, a great deal of weight can be saved in the yaw function, the load of the supporting part 2 is reduced again, the strength requirement is not high, and the material cost is reduced.
As shown in fig. 2, the machine head 12 includes a casing 121, a vane shaft 122, radial magnetic levitation supports 124, an axial magnetic limit 125, and a first bevel gear 126, wherein one end of the vane shaft 122 is inserted into the casing 121, one end of the vane shaft is exposed outside and is provided with a plurality of vanes 11 radially, the stator parts of the radial magnetic levitation supports 124 and the axial magnetic limit 125 are arranged on the inner surface of the casing 121, the rotor parts of the radial magnetic levitation supports 124 and the axial magnetic limit 125 are arranged on the surface of the vane shaft 122, at least two sets of the radial magnetic levitation supports 124 form the vane shaft 122 into a cantilever shaft form, and the first bevel gear 126 is sleeved on the vane shaft 122 at the middle part in the casing 121;
the support component 2 further comprises a force transmission shaft 25, the force transmission shaft 25 vertically penetrates through the support column 21 and the support plate 22, a second bevel gear 251 is arranged at the top end of the force transmission shaft 25, and the second bevel gear 251 is in meshing connection with the first bevel gear 126; the lower end of the force transmission shaft 25 is connected with the input shaft of the generator 32 through a coupling.
The fan blade shaft 122 is driven by the fan blade 11 to rotate, power is transmitted to the first bevel gear 126, and then is transmitted to the second bevel gear 251 to drive the force transmission shaft 25 to rotate, the two bevel gears and the force transmission shaft 25 are the transmission components, and the structure is simple and compact, and no margin exists; let fan blade axle 122 support through the magnetic suspension, the rotation resistance reduces greatly for the wind power can be used for the electricity generation of big proportion, reduces the friction loss, and one raises the efficiency, can reduce to generate heat, and after generator 32 has shifted out space part 1, aerial part 1 no longer need heat radiation structure, and external wind can cool down aerial part 1 completely. At least two groups of radial magnetic suspension supports 124 support the fan blade shaft 122 at the two ends, the axial movement is limited by an axial magnetic limit 125, the axial magnetic limit 125 is a group of magnets with inclined magnetic force directions, as shown in fig. 2, after the magnetic force directions are inclined, the axial component of the supporting force has the effect of limiting the axial movement.
As shown in fig. 2 and 3, the tail rudder 14 includes a main tail wing 141 and an aileron 142, the head 12 further includes a lock pin 127, the lock pin 127 is installed in the housing 121, the main tail wing 141 is fixed to the tail of the head 12, the aileron 142 is movably connected to the main tail wing 141, the aileron 142 can generate an angle deviation with the main tail wing 141 and transmit the angle deviation to the lock pin 127 through a first signal line 91, as shown in fig. 2 and 6, the upper surface of the support plate 22 is provided with pin holes 222 uniformly distributed on the circumference, the lock pin 127 is an actuating member, the lock pin 127 vertically retracts after obtaining an angle deviation signal transmitted from the aileron 142, the lock pin 127 is inserted into the pin hole 222 in other cases, the head of the lock pin 127 is conical, and the pin hole 222 is conical.
In the process that the fan blade shaft 122 transmits power to the second bevel gear 251 through the first bevel gear 126, if there is only one first bevel gear 126 and the machine head 12 has no rotation limit around the force transmission shaft 25, the fan blade shaft 122 will revolve around the force transmission shaft 25 in the self-rotation process, so that the fan blade 11 deviates from the wind direction; this problem can be solved by adding the number of the first bevel gears 126 and making the related structure of the first bevel gears 126 into a blade form similar to a double-oar coaxial helicopter, which realizes the conservation of angular momentum during the rotation process, so that only the rotation power is transmitted to the force transmission shaft 25, and the revolution around the force transmission shaft 25 is eliminated, but the structure of the blade form similar to the double-oar coaxial helicopter in the casing 121 is more complex, so the invention adopts the form of rotation limit, the rotation limit is completed by the lock pin 127 and the pin hole 222, when the wind blade 11 is aligned with the wind direction and normally rotates to generate electricity, the lock pin 127 is inserted into the pin hole 222, the revolution around the force transmission shaft 25 of the nose 12 is prevented, after the deviation of the wind direction is generated, the lock pin 127 is separated from the pin hole 222, the nose 12 is driven by the tail vane 14 to face the wind, the main tail vane 141 is fixed with the casing 121, the direction of the main vane 141 is the direction of, the aileron 142 is movably mounted on the main empennage 141 and can rotate with the external wind, so the angle deviation of the main empennage 141 and the aileron 142 can indicate that the fan blade 11 is not facing the wind, a triggering part in the form of an angle sensor or a rotary contact is arranged at the joint of the main empennage 141 and the aileron 142, a signal is given out after the angle deviation of the main empennage 141 and the aileron 142, the signal is transmitted into the lock pin 127 through the first signal line 91, the main empennage 141 and the aileron 142 have the angle deviation, the lock pin 127 is separated from the pin hole 222, and the nose 12 is in a rotatable state. In order to prevent deviation of the main and sub-rear wings due to instantaneous change or fluctuation of the wind direction, a delay circuit may be provided in the lock pin 127 to drive the lock pin rod to retract only after a signal of the first signal line 91 lasting for a certain time (e.g., 1min or more) is obtained. After the fan blades 11 are centered, the main tail wing and the auxiliary tail wing are in consistent angle again, the pin rod of the lock pin is inserted into the pin hole 222 again, and the rotation of the machine head 12 is locked.
As shown in fig. 2 and 5, an annular yaw anti-vibration slot 221 is formed in the upper surface of the support plate 22, an annular tooth 1211 is formed in the lower surface of the housing 121, the annular tooth 1211 extends into the yaw anti-vibration slot 221, and the yaw anti-vibration slot 221 is filled with non-newtonian fluid.
The angle deviation of the main and auxiliary empennages is subjected to yaw identification, and when the external wind fluctuates, the delayed yaw is performed through a delay circuit, so that the locking pin 127 is prevented from being stretched and contracted frequently due to wind fluctuation; at the end of the centering process of the fan blade 11, the locking pin 127 may be inserted into the pin hole 222 to generate impact due to small-angle fluctuation of wind force, so that the ring gear 1211 is inserted into the non-newtonian fluid in the yaw shockproof groove 221, the non-newtonian fluid is a fluid with a non-linear relationship between shear stress and shear strain rate, the shear-enhanced non-newtonian fluid is selected, when the force applied to the non-newtonian fluid by the ring gear 1211 is caused by instantaneous fluctuation, the non-newtonian fluid is very hard to block the rotation of the non-newtonian fluid, only when the main tail wing 141 has a definite directional angle deviation with the wind direction, the force applied to the non-newtonian fluid by the ring gear 1211 is kept in one direction, the rotation can be performed, the shaking of the machine head 12 caused by the wind force fluctuation at the end of the wind process is eliminated due to the addition of the non-newtonian fluid; although the main tail 141 is no longer swaying, the sub tail 142 may sway due to the moment of the wind, and the output condition of the first signal line 91 may be controlled by setting the angle deviation threshold of the main and sub tail, which is already very small at the end of the wind-up process, and it should be considered that the wind-up is completed, and the first signal line 91 no longer signals the lock pin 127.
The magnetic suspension wind generating set also comprises a second signal wire 92, one end of the second signal wire 92 is connected with the pin hole 222, the other end of the second signal wire 92 is connected with the generator 32, one end of the second signal wire 92 connected with the pin hole 222 is provided with a contact terminal, and when the locking pin 127 is separated from the pin hole 222, a signal is given to the generator 32 to unload.
During the wind process, the locking pin 127 is disengaged from the pin hole 222, the rotation locking of the nose 12 is unlocked, but the fan blade 11 rotates, and the rotation force applied to the nose 12 by the rotation meshing process of the first bevel gear 126 and the second bevel gear 251 is superposed on the wind force of the tail rudder 14, which is not supposed to happen: either the rotation of the vane shaft 122 is stopped by a certain means, or the resistance on the force transmission shaft 251 is removed, so that the vane shaft 122 and the force transmission shaft 251 are in an idle state, so as not to affect the wind-facing process of the nose 12, the latter is preferred, because the blade shaft 122 and the force transmission shaft 25 are locked, after the wind is finished, the wind needs to be restarted, the starting torque of the generator 32 is larger than the resisting torque in normal operation, the load of the generator 32 is unloaded, the force transmission shaft 25 idles, the generator 32 does not need to be restarted, this is accomplished by interlocking the state of the generator 32 with the wind event, with the second signal wire 92 serving the purpose of connecting one end of the second signal wire 92 to the pin hole 222 and one end to the generator 32, with one end of the second signal wire 92 connecting to the pin hole 222 providing a contact terminal, when the locking pin 127 disengages the pin hole 222, a signal is given to the generator 32 to unload it.
As shown in fig. 2, the head 12 further includes a shaft seal 123, the shaft seal 123 being mounted where the vane shaft 122 passes through the housing 121. The shaft seal 123 seals the space inside the head 12 from the outside atmosphere, preventing dust from entering and affecting the operation effect of the gears and the magnetic levitation support.
The shaft seal 123 is a magnetic fluid seal. The magnetic fluid has good sealing performance and almost no rotation resistance. Reducing losses in the transfer of wind power to generator 32.
The supporting column 21 is in a sectional assembly form. Because aerial part 1 is slim and graceful, so the intensity requirement of support column 21 is not so high yet, no longer needs holistic structural style to guarantee to support intensity, and the form transportation of piecemeal assembly is convenient.
The main operation principle of the device is as follows: the wind power drives the fan blades 11 to rotate, the fan blade shaft 122 transmits power to the force transmission shaft 25 through the first bevel gear 126 and the second bevel gear 251, the generator 32 is connected to the force transmission shaft 25 to generate power, and electric energy is output through the output cable 93.
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 (1)
1. A magnetic suspension wind generating set is characterized in that: the magnetic suspension wind generating set comprises an aerial component (1), a supporting component (2) and a ground assembly (3), wherein the aerial component (1) is installed at the top of the supporting component (2), the bottom end of the supporting component (2) is connected with the ground assembly (3), the ground assembly (3) comprises a generator (32) for generating electricity, and the aerial component (1) transmits power to the generator (32) through a transmission assembly for generating electricity;
the aerial part (1) comprises fan blades (11), a machine head (12) and a tail rudder (14), wherein the fan blades (11) and the tail rudder (14) are respectively installed at the two horizontal ends of the machine head (12); the supporting part (2) comprises a supporting column (21), a supporting plate (22), a thrust bearing (23) and a radial bearing (24), the top of the supporting column (21) is connected with the supporting plate (22), the machine head (12) is installed on the supporting plate (22), the lower part of the machine head (12) is disc-shaped, the thrust bearing (23) used for vertically supporting the machine head (12) is arranged on the upper surface of the supporting plate (22), and the radial bearing (24) used for horizontally limiting the machine head (12) is arranged in the center of the supporting plate (22);
the machine head (12) comprises a machine shell (121), a fan blade shaft (122), radial magnetic suspension supports (124), an axial magnetic limiting position (125) and a first bevel gear (126), wherein one end of the fan blade shaft (122) is inserted into the machine shell (121), one end of the fan blade shaft is exposed outside and is provided with a plurality of fan blades (11) in a radial direction, the stator parts of the radial magnetic suspension supports (124) and the axial magnetic limiting position (125) are arranged on the inner surface of the machine shell (121), the rotor parts of the radial magnetic suspension supports (124) and the axial magnetic limiting position (125) are arranged on the surface of the fan blade shaft (122), at least two groups of radial magnetic suspension supports (124) form the fan blade shaft (122) into a cantilever shaft form, and the first bevel gear (126) is sleeved on the middle part of the fan blade shaft (122) in the machine;
the supporting component (2) further comprises a force transmission shaft (25), the force transmission shaft (25) vertically penetrates through the supporting column (21) and the supporting disc (22), a second bevel gear (251) is arranged at the top end of the force transmission shaft (25), and the second bevel gear (251) is in meshing connection with the first bevel gear (126); the lower end of the force transmission shaft (25) is connected with an input shaft of a generator (32) through a coupler;
the tail vane (14) comprises a main tail wing (141) and an auxiliary tail wing (142), the machine head (12) further comprises a lock pin (127), the lock pin (127) is installed in the machine shell (121), the main tail wing (141) is fixed to the tail of the machine head (12), the auxiliary tail wing (142) is movably connected to the main tail wing (141), the auxiliary tail wing (142) can generate angle deviation with the main tail wing (141) and transmit the angle deviation to the lock pin (127) through a first signal line (91), the upper surface of the support plate (22) is provided with pin holes (222) which are uniformly distributed on the circumference, the lock pin (127) is an execution piece, the lock pin (127) retracts vertically after obtaining an angle deviation signal transmitted by the auxiliary tail wing (142), the pin rod of the lock pin (127) is inserted into the pin hole (222) when the lock pin (127) is in other conditions, the head of the lock pin (127) is conical, the pin hole (222) is a conical hole;
the magnetic suspension wind generating set further comprises a second signal wire (92), one end of the second signal wire (92) is connected with the pin hole (222), and the other end of the second signal wire (92) is connected into the generator (32), and a contact terminal is arranged at one end of the second signal wire (92) connected with the pin hole (222); the supporting columns (21) are in a sectional assembly form.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010799334.5A CN112145364B (en) | 2019-10-08 | 2019-10-08 | Magnetic suspension wind generating set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910949379.3A CN110617182B (en) | 2019-10-08 | 2019-10-08 | Magnetic suspension wind generating set |
| CN202010799334.5A CN112145364B (en) | 2019-10-08 | 2019-10-08 | Magnetic suspension wind generating set |
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| CN201910949379.3A Division CN110617182B (en) | 2019-10-08 | 2019-10-08 | Magnetic suspension wind generating set |
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| CN112145364A true CN112145364A (en) | 2020-12-29 |
| CN112145364B CN112145364B (en) | 2022-04-08 |
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| CN201910949379.3A Active CN110617182B (en) | 2019-10-08 | 2019-10-08 | Magnetic suspension wind generating set |
| CN202010799334.5A Active CN112145364B (en) | 2019-10-08 | 2019-10-08 | Magnetic suspension wind generating set |
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| CN201910949379.3A Active CN110617182B (en) | 2019-10-08 | 2019-10-08 | Magnetic suspension wind generating set |
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| CN110985305A (en) * | 2020-01-02 | 2020-04-10 | 诸暨都高风能科技有限公司 | Storage type wind driven generator with changeable angle |
| CN113153640A (en) * | 2021-01-19 | 2021-07-23 | 覃显飞 | Umbrella type tension annular fixed force framework wind impeller reverse thrust magnetic suspension wind driven generator |
| CN113541574A (en) * | 2021-07-23 | 2021-10-22 | 龙菊蓉 | Umbrella ladder combined solar energy and wind energy complementary power generation device |
| CN113586351B (en) * | 2021-09-09 | 2022-09-02 | 武汉理工大学 | New forms of energy wind power generation stake |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110617182A (en) | 2019-12-27 |
| CN112145364B (en) | 2022-04-08 |
| CN110617182B (en) | 2020-09-22 |
| CN112145363B (en) | 2022-04-05 |
| CN112145363A (en) | 2020-12-29 |
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