Wind driven generator with blade reversing function

Abstract

The wind driven generator with the blade reversing function comprises an installation frame, a speed increaser and a generator set, the speed increaser and the generator set are installed on the top of the installation frame, the generator set is in rigid connection with the speed increaser through a rotating shaft, an input shaft of the speed increaser is connected with a synchronizing shaft, and the synchronizing shaft is rotationally connected with a sleeve. An Archimedes spiral fan blade set is fixedly installed on the sleeve, a processor is fixedly installed on the installation frame, a connecting assembly is installed on the synchronizing shaft, an air supply assembly is arranged on the top of the installation frame, and the connecting assembly and the air supply assembly are both in signal connection with the processor. In the aspects of wind energy capture and power generation, the Archimedes spiral fan blade set is special in shape and can be started at low wind speed, and the wind energy utilization range is widened. The special spiral structure can automatically face wind, a complex yaw system is not needed, the cost is reduced, and stable and efficient power generation can be achieved at the position with the complex wind direction.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and more particularly to a wind power generator with a blade reversing function. Background Art

[0002] As the global demand for clean energy grows, wind power generation, as an important renewable energy utilization method, has attracted widespread attention. However, existing wind turbines still face many problems in practical applications.

[0003] In terms of wind energy capture, many wind turbines have poor adaptability to low wind speed environments and often fail to start or have extremely low power generation efficiency in areas with low wind speeds, resulting in a large amount of available wind energy resources being wasted. At the same time, traditional wind turbines need to rely on complex and expensive yaw systems to adjust the direction of the wind turbines when facing frequent changes in wind direction, which not only increases equipment costs, but also increases maintenance difficulty and failure risks, affecting the stability and sustainability of power generation.

[0004] Blade manufacturing technology also has certain limitations. Traditional manufacturing methods cannot guarantee high precision of blades, resulting in deviations between blade shape and design requirements, affecting wind energy capture and conversion efficiency. In addition, the surface finish of blades is not smooth enough, which increases air resistance, reduces wind energy utilization efficiency, and generates greater noise and energy loss.

[0005] In addition, during the operation of the equipment, the working environment of the generator set has a significant impact on its performance and life. High or low temperature environments may cause equipment performance degradation or even failure, and existing heat dissipation and heating measures are often not efficient and intelligent enough. In addition, the lack of effective dust prevention measures causes dust accumulation to affect equipment performance and shorten equipment life. In strong wind weather, key components of the fan, such as the speed increaser, are easily damaged due to excessive wind speed, affecting the continuity of power generation and the overall life of the equipment. Summary of the invention

[0006] In view of the problems existing in the prior art, the object of the present invention is to provide a wind turbine with a blade reversing function to solve the background technical problems.

[0007] To achieve the above object, the present invention adopts the following technical solution: A wind turbine with a blade reversing function comprises a mounting frame, a speed increaser and a generator set mounted on the top thereof, the generator set and the speed increaser are rigidly connected via a rotating shaft, a synchronous shaft is connected to the input shaft of the speed increaser, a sleeve is rotatably connected to the synchronous shaft, an Archimedean screw blade group is fixedly mounted on the sleeve, a processor is fixedly mounted on the mounting frame, a connecting component is mounted on the synchronous shaft, an air supply component is arranged on the top of the mounting frame, and both the connecting component and the air supply component are connected to the processor signal; The Archimedean spiral blade group is composed of a plurality of arc-shaped blades, the arc-shaped blades are made of aluminum alloy, the structure composed of the plurality of arc-shaped blades is rose-shaped from a left-side perspective, the arc-shaped blades gradually become thinner from the root close to the sleeve to the tip, and the arc-shaped blades are manufactured by a lost wax method; The connecting assembly includes an annular connecting seat, which is fixedly mounted on the synchronous shaft, an annular connecting plate fixedly connected to the sleeve, and evenly distributed limiting holes are opened on the annular connecting plate. An annular synchronous plate is slidably connected to the inner wall of the annular connecting seat, and evenly distributed limiting rods are fixedly connected to the annular synchronous plate, and the other end of the limiting rod passes through the annular connecting seat and extends to the inside of the limiting hole. An evenly distributed spring is fixedly connected to the side of the annular synchronous plate away from the limiting rod, and the other end of the spring is fixedly connected to the inner wall of the annular connecting seat. An electromagnet is fixedly mounted on the inner wall of the annular connecting seat, and the electromagnet is connected to a processor signal. A metal block is fixedly mounted on the annular synchronous plate, and the metal block is magnetically connected to the electromagnet.

[0008] As a further description of the above technical solution: evenly distributed rubber shock-absorbing pads are fixedly installed on the bottom of the mounting frame.

[0009] As a further description of the above technical solution: a telescopic sleeve rod is arranged inside the spring, and two ends of the telescopic sleeve rod are respectively connected to the inner wall of the annular connecting seat and the annular synchronous plate.

[0010] As a further description of the above technical solution: a ball is installed on the limiting rod, and the ball is located inside the limiting hole.

[0011] As a further description of the above technical solution: a flash is fixedly mounted on the mounting frame, and the flash is connected to the processor signal.

[0012] As a further description of the above technical solution: the air supply assembly includes an air supply duct, the air supply duct is fixedly installed on the top of the mounting frame, the air outlet end of the air supply duct is located at the top of the generator set, a temperature sensor and an electric heating plate are fixedly installed on the inner wall of the air supply duct, the temperature sensor and the electric heating plate are both connected to the processor signal, the temperature sensor is located at the top of the generator set, and the air inlet end of the air supply duct is located on the right side of the Archimedean screw fan blade group.

[0013] As a further description of the above technical solution: a water blocking seat is fixedly installed on the inner wall of the air supply duct, and the water blocking seat is located on the left side of the electric heating plate.

[0014] As a further description of the above technical solution: evenly distributed guide vanes are fixedly connected to the arc-shaped blades.

[0015] Compared with the prior art, the advantages of the present invention are: In the invention, in terms of wind energy capture and power generation, the Archimedean spiral blade group has a special shape and can be started at low wind speeds, thus expanding the scope of wind energy utilization. Its special spiral structure can automatically face the wind, without the need for a complex yaw system, thus reducing costs, and can generate electricity stably and efficiently even in places with complex wind directions; At the same time, the curved blades are made by the lost wax method, with high precision and smooth surface. This enables the blades to capture wind energy more accurately, reduce energy loss, reduce air resistance, further improve wind energy utilization efficiency, and reduce noise and energy loss; The rose-shaped blade structure can intelligently control the temperature and remove dust from the generator set, ensuring stable operation of the equipment throughout the year. The connection components are monitored by the wind speed sensor. When the wind speed is too high, the casing and the synchronous shaft protection speed increaser are disconnected, and reconnected at normal wind speed to ensure continuous and stable power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the formal cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the connection assembly of the present invention; Figure 4 It is a schematic diagram of the principle of the present invention.

[0017] Description of the numbers in the figure: 1. Installation frame; 2. Speed ​​increaser; 3. Generator set; 4. Synchronous shaft; 5. Casing; 6. Archimedean screw blade group; 601. Arc blade; 602. Guide vane; 7. Processor; 8. Connection assembly; 801. Annular connection seat; 802. Annular connection plate; 803. Limiting hole; 804. Annular synchronous plate; 805. Limiting rod; 806. Spring; 807. Electromagnet; 808. Metal block; 809. Telescopic sleeve rod 9. Air supply assembly; 901. Air supply duct; 902. Temperature sensor; 903. Electric heating plate; 904. Water blocking seat; 10. Rubber shock-absorbing pad; 810. Ball; 11. Flash light; 12. Wind force and speed sensor. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention; See also Figures 1 to 4In the present invention, a wind turbine with a blade reversing function comprises a mounting frame 1, a speed increaser 2 and a generator set 3 mounted on the top thereof, the generator set 3 and the speed increaser 2 are rigidly connected through a rotating shaft, a synchronous shaft 4 is connected to the input shaft of the speed increaser 2, a sleeve 5 is rotatably connected to the synchronous shaft 4, an Archimedean screw blade group 6 is fixedly mounted on the sleeve 5, a processor 7 is fixedly mounted on the mounting frame 1, a connecting component 8 is mounted on the synchronous shaft 4, an air supply component 9 is arranged on the top of the mounting frame 1, the connecting component 8 and the air supply component 9 are both connected to the processor 7 signal, and a wind force and speed sensor 12 is fixedly mounted on the top of the mounting frame 1.

[0019] The Archimedean spiral fan blade group 6 is composed of a plurality of arc-shaped blades 601, which are made of aluminum alloy. The structure composed of the plurality of arc-shaped blades 601 is rose-shaped from a left-hand perspective. The arc-shaped blades 601 gradually become thinner from the root close to the sleeve 5 to the tip. The arc-shaped blades 601 are manufactured by a lost wax method.

[0020] The connecting component 8 includes an annular connecting seat 801, which is fixedly mounted on the synchronous shaft 4, an annular connecting plate 802 is fixedly connected to the sleeve 5, and the annular connecting plate 802 is provided with uniformly distributed limiting holes 803. The inner wall of the annular connecting seat 801 is slidably connected with an annular synchronous plate 804, and the annular synchronous plate 804 is fixedly connected with uniformly distributed limiting rods 805, and the other end of the limiting rod 805 penetrates the annular connecting seat 801 and extends to the inside of the limiting hole 803. The side of the annular synchronous plate 804 away from the limiting rod 805 is fixedly connected with a uniformly distributed spring 806, and the other end of the spring 806 is fixedly connected to the inner wall of the annular connecting seat 801, and an electromagnet 807 is fixedly mounted on the inner wall of the annular connecting seat 801, and the electromagnet 807 is connected to the processor 7 by signal, and a metal block 808 is fixedly mounted on the annular synchronous plate 804, and the metal block 808 is magnetically connected to the electromagnet 807.

[0021] The air supply assembly 9 includes an air supply duct 901, which is fixedly installed on the top of the mounting frame 1. The air outlet end of the air supply duct 901 is located at the top of the generator set 3. A temperature sensor 902 and an electric heating plate 903 are fixedly installed on the inner wall of the air supply duct 901. Both the temperature sensor 902 and the electric heating plate 903 are connected to the processor 7 signal. The temperature sensor 902 is located at the top of the generator set 3. The air inlet end of the air supply duct 901 is located on the right side of the Archimedean screw fan blade group 6.

[0022] When wind power generation is required, natural wind acts on the Archimedes spiral blade group 6. Due to the special shape and aerodynamic characteristics of the Archimedes spiral blade group 6, it can better capture wind energy under different wind speed and wind direction conditions; In a low wind speed environment, its special shape allows the blades to start rotating at a relatively low wind speed, thereby driving the synchronous shaft 4 to rotate through the casing 5. The synchronous shaft 4 drives the generator set 3 through the speed increaser 2 to generate electricity and transmit it to the connected energy storage system, thereby improving the applicability of the wind power generation system in low wind speed areas and expanding the range of available wind energy resources. At this time, the casing 5 and the synchronous shaft 4 are connected by a connecting component 8.

[0023] When the wind direction changes, due to the special spiral structure of the blades, the turbine can automatically align with the most favorable wind direction. The blades will automatically adjust their angles due to the force they are subjected to. There is no need for a complex yaw system, which reduces equipment costs and maintenance difficulties. Especially in environments with complex and changeable wind directions such as cities, the turbine can better adapt and improve power generation efficiency and stability.

[0024] During the operation of the equipment, as shown in the figure, multiple groups of arc-shaped blades 601 form rose-shaped blades, and the airflow is concentrated and flows out through the gap on the right side. During the rotation, part of the airflow is concentrated and enters the air supply component 9. The temperature sensor 902 on the inner wall of the air supply duct 901 monitors the temperature on the top of the generator set 3 in real time and transmits the signal to the processor 7. If the temperature is too high, the processor 7 controls the electric heating plate 903 not to work, and the airflow directly acts on the generator set 3, so that the air circulation speed nearby is accelerated to achieve heat dissipation.

[0025] Similarly, if the temperature is too low, the processor 7 controls the electric heating plate 903 to heat the airflow entering the air supply duct 901, and then the temperature-controlled airflow is ejected to the top of the generator set 3 to heat the generator set 3 and ensure the operating environment of the generator set 3. At the same time, the airflow directly acts on the generator set 3 to remove dust on the surface of the generator set 3.

[0026] The connecting component 8 operates under the monitoring of the wind force and speed sensor. When the wind speed is too high, the processor 7 receives a signal and controls the electromagnet 807 to be energized. After the electromagnet 807 is energized, it generates magnetism to attract the metal block 808. At this time, the magnetic force is greater than the force of the spring 806, so that the annular synchronous plate 804 drives the limiting rod 805 to disengage from the limiting hole 803 of the annular connecting plate 802, so that the sleeve 5 is disconnected from the synchronous shaft 4. At this time, the wind speed is too high and the fan blades rotate by themselves to prevent the speed increaser 2 from being damaged due to excessive wind speed. When the wind speed is within the normal range, the processor 7 controls the electromagnet 807 to be de-energized, so that the spring 806 starts to rebound, and the annular synchronous plate 804 sends the limiting rod 805 into the limiting hole 803 to achieve the connection between the sleeve 5 and the synchronous shaft 4, thereby continuing to generate electricity.

[0027] In the present invention, in terms of wind energy capture and power generation performance, the unique shape and aerodynamic characteristics of the Archimedean spiral fan blade group 6 enable it to start rotating at a relatively low wind speed in a low wind speed environment. This low wind speed start-up function effectively improves the applicability of the wind power generation system in low wind speed areas, expands the range of available wind energy resources, and in different regions, especially in areas with relatively low wind speeds, wind energy that was originally difficult to utilize can be converted into electrical energy, thereby improving the efficiency and range of wind power generation and increasing the total amount of power generation.

[0028] Its special spiral structure allows the turbine to automatically align with the most favorable wind direction and automatically adjust the angle when the wind direction changes. This function avoids the use of a complex yaw system, reduces equipment costs and maintenance difficulties. In environments with complex and changeable wind directions such as cities, the wind turbine can quickly adapt to changes in wind direction, maintain a stable power generation state, and reduce power generation interruptions or efficiency reductions caused by changes in wind direction, thereby improving power generation efficiency and stability and ensuring the continuity of power supply.

[0029] In terms of blade manufacturing, the curved blade 601 is manufactured using the lost wax method, which has the characteristics of high precision. Compared with traditional 3D printing technology, the accuracy can be improved by about 30%, which makes the shape of the blade more in line with the design requirements. In actual operation, it can capture wind energy more accurately, reduce energy loss, and improve the efficiency of converting wind energy into electrical energy. The good surface finish reaches Ra0.8 microns, which reduces the air resistance of the blade during rotation, further improves the efficiency of wind energy utilization, and reduces the noise and energy loss caused by air friction.

[0030] A plurality of groups of arc-shaped blades 601 form a rose shape, and the airflow flows out through the right side gap in a concentrated manner. The airflow directly acts on the generator set 3, speeding up the air circulation speed nearby and achieving a heat dissipation effect. This can effectively prevent the generator set 3 from having performance degradation and shortening its life due to excessive temperature, and ensure that the generator set 3 can operate stably in a high temperature environment. At the same time, the temperature-controlled airflow is sprayed to the top of the generator set 3 to achieve a heating effect, which ensures that the generator set 3 can operate normally in a low temperature environment, avoiding equipment failures caused by low temperature, ensuring the stable operation of the equipment throughout the year, and improving the power generation efficiency. At the same time, the airflow directly acts on the generator set 3 to remove surface dust, reduce the impact of dust accumulation on equipment performance, and further improve the reliability and service life of the equipment.

[0031] The connecting component 8 operates under the monitoring of the wind force and speed sensor 12. When the wind speed is too high, the connecting component 8 disconnects the sleeve 5 from the synchronous shaft 4, and the fan blades rotate on their own. This function avoids damage to the speed increaser 2 due to excessive wind speed, protects key components of the equipment, reduces equipment failures and maintenance costs caused by strong winds, and extends the service life of the equipment. When the wind speed is within the normal range, the processor 7 controls the electromagnet 807 to cut off the power, and the sleeve 5 is reconnected with the synchronous shaft 4 to continue generating electricity, ensuring the continuity and stability of the power generation process and improving the power generation efficiency.

[0032] See also Figure 1 and 2 , wherein: the bottom of the mounting frame 1 is fixedly mounted with evenly distributed rubber shock-absorbing pads 10 .

[0033] In the present invention, the rubber shock-absorbing pad 10 can play a good shock-absorbing effect during the operation of the equipment, preventing the vibration generated by long-term movement from affecting the structural stability.

[0034] See also Figure 3 , wherein: a telescopic sleeve rod 809 is arranged inside the spring 806 , and two ends of the telescopic sleeve rod 809 are respectively connected to the inner wall of the annular connecting seat 801 and the annular synchronous plate 804 .

[0035] In the present invention, the arrangement of the telescopic sleeve 809 can limit the annular synchronous plate 804 and the spring 806, so that the annular synchronous plate 804 always maintains stable movement and the spring 806 can be prevented from twisting and deforming.

[0036] See also Figure 3 , wherein: a ball 810 is installed on the limiting rod 805 , and the ball 810 is located inside the limiting hole 803 .

[0037] In the present invention, when the limiting rod 805 needs to enter the limiting hole 803, it may not be able to enter the limiting hole 803 in the initial stage. At this time, the ball 810 at the end of the limiting rod 805 contacts the annular connecting plate 802 to reduce friction and facilitate subsequent entry.

[0038] See also Figure 4 , wherein: a flash 11 is fixedly mounted on the mounting frame 1 , and the flash 11 is signal-connected to the processor 7 .

[0039] In the present invention, when the processor 7 receives an abnormal signal from the wind speed sensor 12 or the temperature sensor 902, the processor 7 controls the flashlight 11 to flash while processing the signal, and the flashlight 11 flashes to remind nearby people.

[0040] See also Figure 2, wherein: a water blocking seat 904 is fixedly installed on the inner wall of the air supply duct 901 , and the water blocking seat 904 is located on the left side of the electric heating plate 903 .

[0041] In the present invention, the water blocking seat 904 can prevent water from entering through the left end of the air supply duct 901, thereby protecting the electric heating plate 903.

[0042] See also Figure 2 , wherein: the arc-shaped blades 601 are fixedly connected with evenly distributed guide vanes 602 .

[0043] In the present invention, the guide vane 602 can guide the airflow to flow more smoothly through the surface of the arc-shaped blade 601, reduce the generation of airflow separation and vortex, and thus improve the efficiency of wind energy utilization.

[0044] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wind turbine with a blade reversing function, comprising a mounting frame (1) and a speed increaser (2) and a generator set (3) mounted on the top of the mounting frame, wherein the generator set (3) and the speed increaser (2) are rigidly connected via a rotating shaft, and characterized in that: The input shaft of the speed increaser (2) is connected to a synchronous shaft (4), the synchronous shaft (4) is rotatably connected to a sleeve (5), an Archimedean screw blade group (6) is fixedly mounted on the sleeve (5), a processor (7) is fixedly mounted on the mounting frame (1), a connecting component (8) is mounted on the synchronous shaft (4), an air supply component (9) is arranged on the top of the mounting frame (1), the connecting component (8) and the air supply component (9) are both signal-connected to the processor (7), and a wind force and speed sensor (12) is fixedly mounted on the top of the mounting frame (1); The Archimedean spiral blade group (6) is composed of a plurality of arc-shaped blades (601), the arc-shaped blades (601) are made of an aluminum alloy material, the structure composed of the plurality of arc-shaped blades (601) is rose-shaped when viewed from the left, the arc-shaped blades (601) gradually become thinner from the root close to the sleeve (5) to the tip, and the arc-shaped blades (601) are manufactured by a lost wax method; The connecting assembly (8) comprises an annular connecting seat (801), the annular connecting seat (801) is fixedly mounted on the synchronous shaft (4), an annular connecting plate (802) is fixedly connected to the sleeve (5), the annular connecting plate (802) is provided with evenly distributed limiting holes (803), an annular synchronous plate (804) is slidably connected to the inner wall of the annular connecting seat (801), evenly distributed limiting rods (805) are fixedly connected to the annular synchronous plate (804), the other end of the limiting rod (805) passes through the annular connecting seat (801) and extends The annular synchronous plate (804) extends into the interior of the limiting hole (803); a side of the annular synchronous plate (804) away from the limiting rod (805) is fixedly connected to a uniformly distributed spring (806); the other end of the spring (806) is fixedly connected to the inner wall of the annular connecting seat (801); an electromagnet (807) is fixedly mounted on the inner wall of the annular connecting seat (801); the electromagnet (807) is signal-connected to the processor (7); a metal block (808) is fixedly mounted on the annular synchronous plate (804); the metal block (808) is magnetically connected to the electromagnet (807).

2. The wind turbine with blade reversing function according to claim 1, characterized in that: Evenly distributed rubber shock-absorbing pads (10) are fixedly mounted on the bottom of the mounting frame (1).

3. The wind turbine with blade reversing function according to claim 1, characterized in that: A telescopic sleeve rod (809) is arranged inside the spring (806), and two ends of the telescopic sleeve rod (809) are respectively connected to the inner wall of the annular connecting seat (801) and the annular synchronous plate (804).

4. The wind turbine with blade reversing function according to claim 1, characterized in that: A ball (810) is mounted on the limiting rod (805), and the ball (810) is located inside the limiting hole (803).

5. The wind turbine with blade reversing function according to claim 1, characterized in that: A flashlight (11) is fixedly mounted on the mounting frame (1), and the flashlight (11) is signal-connected to the processor (7).

6. The wind turbine with blade reversing function according to claim 1, characterized in that: The air supply assembly (9) comprises an air supply duct (901), the air supply duct (901) being fixedly mounted on the top of the mounting frame (1), the air outlet end of the air supply duct (901) being located at the top of the generator set (3), a temperature sensor (902) and an electric heating plate (903) being fixedly mounted on the inner wall of the air supply duct (901), the temperature sensor (902) and the electric heating plate (903) both being signal-connected to the processor (7), the temperature sensor (902) being located at the top of the generator set (3), and the air inlet end of the air supply duct (901) being located at the right side of the Archimedean screw blade group (6).

7. The wind turbine generator with blade reversing function according to claim 6, characterized in that: A water blocking seat (904) is fixedly mounted on the inner wall of the air supply duct (901), and the water blocking seat (904) is located on the left side of the electric heating plate (903).

8. The wind turbine with blade reversing function according to claim 1, characterized in that: The arc-shaped blades (601) are fixedly connected to evenly distributed guide vanes (602).

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