CN114623043A - Wind power generator - Google Patents

Wind power generator Download PDF

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Publication number
CN114623043A
CN114623043A CN202210243728.1A CN202210243728A CN114623043A CN 114623043 A CN114623043 A CN 114623043A CN 202210243728 A CN202210243728 A CN 202210243728A CN 114623043 A CN114623043 A CN 114623043A
Authority
CN
China
Prior art keywords
bevel gear
transmission shaft
blades
shaft
shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202210243728.1A
Other languages
Chinese (zh)
Inventor
胡慧
徐睿婷
陈硬
陈晓雷
黄凌翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Institute of Engineering
Original Assignee
Hunan Institute of Engineering
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan Institute of Engineering filed Critical Hunan Institute of Engineering
Priority to CN202210243728.1A priority Critical patent/CN114623043A/en
Publication of CN114623043A publication Critical patent/CN114623043A/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0224—Adjusting blade pitch
    • 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
    • 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
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

The invention discloses a wind driven generator. The variable-pitch propeller comprises a main body, a variable-pitch assembly and a transmission assembly, wherein the main body comprises a shell, a rotating cover, a plurality of blades and a main shaft, the blades are arranged at intervals, and the blades are uniformly spaced and rotatably connected to the rotating cover; the variable pitch assembly comprises a first bevel gear and a second bevel gear which are meshed with each other, and the second bevel gears are in the same number with the blades and are connected in a one-to-one corresponding manner; the transmission assembly comprises a transmission shaft and a connecting piece, the transmission shaft is coaxially connected to the first bevel gear, and the connecting piece is used for connecting the transmission shaft with the shell. In the invention, when the angle of the paddle needs to be adjusted, the shell is connected with the transmission shaft by the connecting piece, at the moment, the transmission shaft cannot rotate, the paddle still drives each second bevel gear to rotate around the transmission shaft, at the moment, the second bevel gear is meshed with the first bevel gear and rotates, and the second bevel gear rotates and drives the corresponding paddle to rotate. When the paddle is adjusted to a proper angle, the shell is separated from the transmission shaft by the connecting piece, and the paddle is changed.

Description

Wind-driven generator
Technical Field
The invention relates to the technical field of power generation equipment, in particular to a wind driven generator.
Background
The existing wind driven generator generally comprises a shell, a main shaft, a generator and a plurality of blades, wherein the blades are blown by wind power, the blades drive the main shaft to rotate, and the main shaft drives the generator to generate electricity. A variable pitch system is also arranged inside part of the wind driven generator.
The variable pitch control technology is to change the attack angle of the airflow to the blades by adjusting the pitch angle of the blades, and further control the pneumatic torque and the pneumatic power captured by the wind wheel. The variable pitch system is one of the core parts of a large-scale wind turbine control system, and plays an important role in safe, stable and efficient operation of the wind turbine. The stable pitch control becomes one of the hot spots and difficulties of the current large-scale wind generating set control technology research.
Disclosure of Invention
The invention mainly aims to provide a wind driven generator and aims to provide a stable wind driven generator.
In order to achieve the above object, the present invention provides a wind power generator comprising:
the main body comprises a shell, a rotating cover, a plurality of blades and a main shaft, wherein the blades are arranged at intervals, the blades are uniformly and rotatably connected to the rotating cover at intervals, the blades drive the rotating cover to rotate, the main shaft is fixed with the rotating cover, and the main shaft rotates in the shell;
the variable pitch assembly comprises a first bevel gear and a second bevel gear, and the second bevel gears are the same in number with the blades and are connected in a one-to-one corresponding mode; the first bevel gear and the second bevel gear are meshed with each other;
the transmission assembly rotates in the shell and comprises a transmission shaft and a connecting piece, the transmission shaft is coaxially connected to the first bevel gear, and the connecting piece is used for connecting the transmission shaft with the shell.
Preferably, the main shaft of the wind driven generator is tubular, and the transmission shaft is rotatably arranged in the main shaft; the connecting piece is arranged in the shell.
Preferably, each second bevel gear is provided with a rotating shaft, the peripheral wall of the transmission shaft is provided with a ring groove, and the rotating shaft is inserted and slides in the ring groove.
Preferably, the connecting piece is a hydraulic cylinder, the hydraulic cylinder comprises a cylinder body and a piston rod, the cylinder body is arranged on the shell, and the peripheral wall of the transmission shaft is provided with a jack for the piston rod to be inserted.
Preferably, the insertion holes are provided in plurality at intervals around the transmission shaft.
Preferably, the wind power generator further comprises a sensor for detecting an angle of the blade, the sensor being electrically connected to the connector.
Preferably, the number of the sensors corresponding to the number of the blades is multiple and the sensors are arranged in a one-to-one correspondence manner, and each sensor detects the corresponding blade.
Preferably, the wind power generator further comprises a wind power detection assembly, and the wind power detection assembly is electrically connected with the connecting piece.
Preferably, the paddle is connected with the second bevel gear, the second bevel gear rotates to the rotating cover through a second bearing, the second bearing comprises a second inner ring and a second outer ring, the second inner ring is coaxially fixed to the end face, away from the first bevel gear, of the second bevel gear, the second outer ring is coaxially sleeved and rotates outside the second inner ring, and the outer wall of the second outer ring is fixed to the rotating cover.
Preferably, a generator body is further arranged in the shell and connected with the transmission shaft.
According to the technical scheme, when the equipment normally runs, the blades are blown by wind to rotate, and the plurality of blades drive the main shaft to rotate and complete power generation through the generator. At the moment, the plurality of blades drive the transmission shaft to rotate through the meshing of the second bevel gear and the first bevel gear, and the transmission shaft and the main shaft rotate in the shell. When the angle of the paddle needs to be adjusted, the shell is connected with the transmission shaft through the connecting piece, at the moment, the transmission shaft cannot rotate, the paddle still drives each second bevel gear to rotate around the transmission shaft, at the moment, the second bevel gears are meshed with the first bevel gears and rotate, and the second bevel gears rotate and drive the corresponding paddles to rotate. When the paddle is adjusted to a proper angle, the shell is separated from the transmission shaft by the connecting piece, and the transmission shaft continues to rotate to finish the change of the paddle. The design realizes the change of the angle of the paddle by the power for driving the paddle to rotate by wind power, does not need additional power and saves cost. And one first bevel gear drives a plurality of second bevel gears and corresponding blades to rotate at the same time, so that the blades change the pitch at the same time, and the stability of blade change is improved.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of an overall structure of a wind turbine according to an embodiment of the present invention;
fig. 2 is a schematic view of an internal structure of a wind turbine according to an embodiment of the present invention.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
100 Pitch assembly 400 Rotary cover
101 First bevel gear 500 Blade
102 Second bevel gear 600 Main shaft
200 Transmission assembly 700 Jack hole
201 Transmission shaft 800 First bearing
202 Hydraulic cylinder 900 Sensor with a sensor element
2021 Cylinder body 110 Second bearing
2022 Piston rod 120 Ring groove
300 Shell body 130 Rotating shaft
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
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 of the present invention without any inventive step, are within the scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "connected," "secured," and the like are to be construed broadly, e.g., "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 2, in an embodiment of the present invention, a wind turbine is provided, including: the main body comprises a shell 300, a rotating cover 400, a plurality of blades 500 and a main shaft 600, wherein the plurality of blades 500 are arranged at intervals, the plurality of blades 500 are rotatably connected to the rotating cover 400 at even intervals, the blades 500 drive the rotating cover 400 to rotate, the main shaft 600 is fixed with the rotating cover 400, and the main shaft 600 rotates in the shell 300; the variable pitch assembly 100 comprises a first bevel gear 101 and a second bevel gear 102, and the second bevel gears 102 are the same in number as the blades 500 and are connected in a one-to-one correspondence manner; the first bevel gear 101 and the second bevel gear 102 are meshed with each other; the transmission assembly 200 rotates in the housing 300, and the transmission assembly 200 includes a transmission shaft 201 and a connecting member, the transmission shaft 201 is coaxially connected to the first bevel gear 101, and the connecting member is used to connect the transmission shaft 201 and the housing 300.
When the equipment normally runs, the blades 500 are blown by wind to rotate, and the plurality of blades 500 drive the main shaft 600 to rotate and complete power generation through the generator. At this time, the plurality of paddles 500 drive the transmission shaft 201 to rotate through the engagement of the second bevel gear 102 and the first bevel gear 101, and both the transmission shaft 201 and the main shaft 600 rotate in the housing 300. When the angle of the blade 500 needs to be adjusted, the shell 300 is connected with the transmission shaft 201 by using the connecting piece, at this time, the transmission shaft 201 cannot rotate, the blade 500 still drives each second bevel gear 102 to rotate around the transmission shaft 201, at this time, the second bevel gear 102 is meshed with the first bevel gear 101 and rotates, and the second bevel gear 102 rotates and drives the corresponding blade 500 to rotate. After the blade 500 is adjusted to a proper angle, the connector separates the housing 300 from the transmission shaft 201, and the transmission shaft 201 continues to rotate, thereby completing the change of the blade 500. According to the design, the blade 500 is driven by the power for driving the blade 500 to rotate through wind power, so that the angle of the blade 500 is changed, additional power is not needed, and the cost is saved. And one first bevel gear 101 drives a plurality of second bevel gears 102 and corresponding blades 500 to rotate at the same time, so that the blades 500 change the pitch at the same time, and the stability of the blade 500 change is improved.
In an embodiment, the blades 500 are arranged in three and evenly spaced around the main shaft 600 according to a conventional wind turbine arrangement. Therefore, the second bevel gear 102 of the present invention is also provided with three and corresponding paddles 500, and the paddles 500 are fixed in the direction of the corresponding second bevel gear 102 away from the teeth. The second bevel gear 102 rotates with the rotating cap 400 through the second bearing 110.
Because the main shaft 600 and the transmission shaft 201 need to be arranged in a collinear manner, the main shaft 600 of the wind driven generator is tubular, and the transmission shaft 201 and the main shaft 600 are coaxially and rotatably arranged in the main shaft 600; the connector is disposed in the housing 300. The main shaft 600 rotates in the transmission shaft 201, and interference between the main shaft 600 and the transmission shaft 201 is avoided.
Further, each second bevel gear 102 is provided with a rotating shaft, the peripheral wall of the transmission shaft 201 is provided with a ring groove 120, and the rotating shaft is inserted into and slides in the ring groove 120. Because the transmission shaft 201 is arranged coaxially with the main shaft 600, the rotating shaft of the second bevel gear 102 rotates in the annular groove 120, and the annular groove 120 guides the rotating shaft, so that the running stability of the second bevel gear 102 and the paddle 500 is improved.
Specifically, the rotating shaft is coaxially fixed at one end of the second bevel gear 102 close to the transmission shaft 201, the ring groove 120 is coaxially opened at one end of the transmission shaft 201 close to the paddle 500, and the rotating shaft extends into the ring groove 120.
Specifically, one end of the main shaft 600 is fixed to the spin cover 400, and the length of the main shaft 600 is shorter than that of the transmission shaft 201. One end of transmission shaft 201 far away from blade 500 extends to the outside of main shaft 600. The connection member prevents the main shaft 600 from interfering when being connected with the transmission shaft 201.
Further, the connecting member is a hydraulic cylinder 202, the hydraulic cylinder 202 includes a cylinder body 2021 and a piston rod 2022, the cylinder body 2021 is disposed in the casing 300, and an insertion hole 700 for inserting the piston rod 2022 is formed in the outer circumferential wall of the transmission shaft 201. When the piston rod 2022 is inserted into the insertion hole 700, the connection between the transmission shaft 201 and the housing 300 is realized.
Specifically, the cylinder 2021 is fixed to the inner wall of the housing 300, the piston rod 2022 passes through and slides on one end of the cylinder 2021 close to the transmission shaft 201, and the piston rod 2022 and the cylinder 2021 are coaxially disposed. The axis of the piston rod 2022 is perpendicular to the axis of the transmission shaft 201, when the hydraulic cylinder 202 is activated, the piston rod 2022 of the hydraulic cylinder 202 extends and abuts against the peripheral wall of the transmission shaft 201, and when the insertion hole 700 of the transmission shaft 201 rotates to a corresponding position, the piston rod 2022 penetrates into the insertion hole 700. It is noted that to avoid damage and breakage of the hydraulic cylinder 202, reinforcement may be adapted to avoid damage to the hydraulic cylinder 202.
Notably, a hydraulic component, which may be a hydraulic pump, is adapted to power the hydraulic cylinder 202 within the housing 300.
In another embodiment of the invention, the connecting piece is a bolt, and the bolt has high structural strength and is not easy to break.
In another embodiment of the present invention, the connecting member is an electric push rod.
Further, the insertion hole 700 is provided in plurality at intervals around the transmission shaft 201. The arrangement of the plurality of insertion holes 700 enables the piston rod 2022 to enter the corresponding insertion hole 700 at the fastest speed, thereby avoiding the precision error caused by the piston rod 2022 staring at the transmission shaft 201.
Specifically, the plurality of insertion holes 700 are arranged at regular intervals around the axis of the drive shaft 201. In this embodiment, the insertion holes 700 are provided with five.
Further, the transmission shaft 201 is connected to the main shaft 600 through the first bearing 800. The main shaft 600 ensures that the transmission shaft 201 stably rotates in the main shaft 600.
Specifically, the bearing includes a first outer ring and a first inner ring, the outer wall of the first outer ring is fixed to the inner wall of the main shaft 600, the inner wall of the first inner ring is fixed to the outer wall of the transmission shaft 201, the first inner ring and the first outer ring are coaxially disposed, and the first inner ring rotates in the first outer ring. It should be noted that, in order to stabilize the rotation of the transmission shaft 201 in the main shaft 600, a plurality of bearings may be provided along the length of the transmission shaft 201, and a space may be provided between two adjacent bearings. The plurality of bearings may be evenly spaced.
Further, the wind power generator further includes a sensor 900, the sensor 900 is used for detecting the angle of the blade 500, and the sensor 900 is electrically connected to the connector. The sensor 900 measures the angle of the blade 500, and when the angle of the blade 500 is not good, the sensor 900 detects and transmits a signal to the hydraulic cylinder 202, the piston rod 2022 of the hydraulic cylinder 202 is inserted into the corresponding insertion hole 700, the transmission shaft 201 stops rotating, and the angle of the blade 500 is changed. When the angle of blade 500 reaches the desired angle, sensor 900 detects and transmits an electrical signal to hydraulic cylinder 202, and hydraulic cylinder 202 retracts piston rod 2022. It is noted that it takes time for the piston rod 2022 of the hydraulic cylinder 202 to extend and retract, and therefore the sensor 900 can transmit an electric signal to the hydraulic cylinder 202 in advance according to the time.
Further, a plurality of sensors 900 are provided corresponding to the number of blades 500 and are provided in a one-to-one correspondence, and each sensor 900 detects a corresponding blade 500. The plurality of sensors 900 detect the blades 500, can detect the angle of each blade 500, and when the angle of one blade 500 is different from the angles of the other blades 500, it indicates that the blade 500 has a problem, and the sensors 900 transmit signals to a control center, so that a worker can conveniently overhaul the blade. And the detection of the plurality of sensors 900 can improve the detection sensitivity, reduce interference and improve the precision of the angle adjustment of the blade 500.
Specifically, the sensors 900 are fixed to the rotating housing 400, and three sensors 900 are disposed at regular intervals around the rotating housing 400.
Further, the wind power generator further comprises a wind force detection assembly electrically connected to the connector and the sensor 900. The wind force detection assembly is used for judging whether the angle of the current blade 500 needs to be adjusted. The wind power detection component is a wind power detector or an inductor commonly used in the market.
Specifically, the wind power generator further includes a tower by which the housing 300 of the wind power generator is supported, the housing 300, the blades 500 and the rotating cover 400 being away from the ground. The rotating cover 400 is provided with a yielding hole for placing the paddle 500 and the second bevel gear 102.
Further, the paddle 500 is connected to a second bevel gear 102, and the second bevel gear 102 rotates to the rotating cover 400 through a second bearing 110. The paddle 500 and the second bevel gear 102 rotate on the rotating cover 400 through the second bearing 110, so that friction between the second bevel gear 102 and the rotating cover 400 is reduced, and the stability of structural operation is improved. Specifically, the second bearing 110 includes a second inner ring and a second outer ring, the second inner ring is coaxially fixed to the end surface of the second bevel gear 102 away from the first bevel gear 101, the second outer ring is coaxially sleeved and rotated outside the second inner ring, and the outer wall of the second outer ring is fixed to the rotating cover 400.
Further, a generator body is further disposed in the housing 300 of the wind turbine generator, and the main shaft 600 is connected to an input end of the generator to complete a power generation operation.
Further, a generator body is connected with the transmission shaft 201. The transmission shaft 201 is connected with the input end of the generator body, and the generator can generate electricity through the transmission shaft 201. The waste of energy is reduced, and the power generation efficiency is improved.
The wind driven generator further comprises a speed reducer, the main shaft 600 is connected with the input end of the speed reducer, the output end of the speed reducer is connected with the input end of the generator, and the generator generates electricity.
Because the main shaft 600 cannot be directly connected with the speed reducer due to the design of the invention, the main shaft 600 can be connected with the speed reducer through a gear set, the gear set comprises two mutually meshed spur gears, one of the spur gears is sleeved and fixed outside the main shaft 600, and the other spur gear is fixed at the input end of the speed reducer. The transmission is realized through a gear set.
In the invention, the wind power detection component detects wind power and wind speed, when the angle of the blade 500 is not suitable for the current condition or the sensor 900 detects that the angle of the blade 500 is not suitable for the current condition, the wind power detection component sends an electric signal to the hydraulic cylinder 202, the piston rod 2022 of the hydraulic cylinder 202 extends out, the piston rod 2022 extends into the corresponding jack 700, the transmission shaft 201 stops rotating under the action of the piston rod 2022, the blade 500 still drives the plurality of second bevel gears 102 to rotate around the first bevel gear 101, and at this time, under the meshing of the second bevel gears 102 and the first bevel gear 101, the second bevel gears 102 rotate and drive the corresponding blades 500 to rotate. When the sensor 900 detects that the blade 500 reaches or is about to reach the correct position, the sensor 900 sends an electric signal to control the piston rod 2022 of the hydraulic cylinder 202 to retract, at this time, the transmission shaft 201 loses the limit, and the angle adjustment of the blade 500 is completed.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A wind power generator, characterized in that it comprises:
the main body comprises a shell, a rotating cover, a plurality of blades and a main shaft, wherein the blades are arranged at intervals, the blades are uniformly and rotatably connected to the rotating cover at intervals, the blades drive the rotating cover to rotate, the main shaft is fixed with the rotating cover, and the main shaft rotates in the shell;
the variable pitch assembly comprises a first bevel gear and a second bevel gear, and the second bevel gears are the same in number with the blades and are connected in a one-to-one corresponding mode; the first bevel gear and the second bevel gear are meshed with each other;
the transmission assembly rotates in the shell and comprises a transmission shaft and a connecting piece, the transmission shaft is coaxially connected to the first bevel gear, and the connecting piece is used for connecting the transmission shaft with the shell.
2. The wind generator of claim 1, wherein the main shaft of the wind generator is tubular, and the transmission shaft is rotatably disposed within the main shaft; the connecting piece is arranged in the shell.
3. The wind power generator as claimed in claim 2, wherein each of the second bevel gears is provided with a rotating shaft, the outer peripheral wall of the transmission shaft is provided with a ring groove, and the rotating shaft is inserted into and slides in the ring groove.
4. The wind power generator as claimed in claim 2, wherein the connecting member is a hydraulic cylinder, the hydraulic cylinder includes a cylinder body and a piston rod, the cylinder body is disposed on the housing, and the circumferential wall of the transmission shaft is provided with an insertion hole for inserting the piston rod.
5. The wind generator of claim 4, wherein the socket is spaced a plurality of times around the drive shaft.
6. The wind turbine according to any one of claims 1 to 5, further comprising a sensor for detecting an angle of the blade, the sensor being electrically connected to the connector.
7. The wind turbine according to claim 6, wherein the sensors are provided in a plurality and one-to-one correspondence with the number of the blades, each of the sensors detecting the corresponding blade.
8. The wind power generator according to any one of claims 1 to 5, further comprising a wind power detection assembly electrically connected to the connecting member.
9. The wind power generator as claimed in any one of claims 1 to 5, wherein the blade is connected to the second bevel gear, the second bevel gear rotates on the rotating cover through a second bearing, the second bearing comprises a second inner ring and a second outer ring, the second inner ring is coaxially fixed on the end surface of the second bevel gear far away from the first bevel gear, the second outer ring is coaxially sleeved and rotates outside the second inner ring, and the outer wall of the second outer ring is fixed on the rotating cover.
10. The wind power generator as claimed in any one of claims 1 to 5, wherein a generator body is further disposed in the housing, and the generator body is connected to the transmission shaft.
CN202210243728.1A 2022-03-10 2022-03-10 Wind power generator Withdrawn CN114623043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210243728.1A CN114623043A (en) 2022-03-10 2022-03-10 Wind power generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210243728.1A CN114623043A (en) 2022-03-10 2022-03-10 Wind power generator

Publications (1)

Publication Number Publication Date
CN114623043A true CN114623043A (en) 2022-06-14

Family

ID=81902624

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210243728.1A Withdrawn CN114623043A (en) 2022-03-10 2022-03-10 Wind power generator

Country Status (1)

Country Link
CN (1) CN114623043A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115013244A (en) * 2022-07-04 2022-09-06 华能陇东能源有限责任公司 Wind power base blade adjusting device with shock attenuation effect

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115013244A (en) * 2022-07-04 2022-09-06 华能陇东能源有限责任公司 Wind power base blade adjusting device with shock attenuation effect
CN115013244B (en) * 2022-07-04 2023-07-25 华能陇东能源有限责任公司 Wind power base blade adjusting device with damping effect

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Application publication date: 20220614