Horizontal shaft permanent magnet direct-driven wind driven generator

Abstract

The invention discloses a horizontal shaft permanent magnet direct-driven wind driven generator, and relates to the technical field of wind power generation. The horizontal-shaft permanent-magnet direct-drive wind driven generator comprises a cabin, a stator mechanism and a rotor mechanism, the rotor mechanism comprises a connecting rotating shaft, a blade hub is fixedly installed at one end of the surface of the connecting rotating shaft, the blade hub is installed at the position close to a base, and a rotor magnet yoke is fixedly connected to the middle of the outer circle face of the connecting rotating shaft. The stator mechanism comprises an annular fixing piece, the inner side face of the annular fixing piece is fixedly connected with a flow guide connecting plate, and the end, away from the inner side face of the annular fixing piece, of the flow guide connecting plate is fixedly connected with a stator iron core ring. The stator winding is fixedly installed on the inner side face of the stator iron core ring, the purpose of rapid heat dissipation is achieved, heat is dissipated in time, rotation is smooth, friction is reduced, jamming is not prone to occurring, energy loss is reduced, and safety and reliability are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to a horizontal-axis permanent magnet direct-drive wind turbine. Background Art

[0002] In recent years, wind energy has played a crucial role in the global development of renewable energy. Wind power generation converts naturally renewable wind energy into kinetic energy, generating electricity that can be used by power equipment. Harnessing wind energy for power generation is environmentally friendly and sustainable, making it particularly well-suited for high-altitude areas with high year-round wind volume. Sustainable wind energy is used to drive mechanical equipment, converting mechanical energy into electrical energy. Wind power drives the rotation of wind turbine blades, which in turn rotate the rotor of a permanent magnet direct-drive generator. The stator windings cut through the rotor's magnetic field lines, generating an induced electromotive force and generating electricity. With the rapid development of society and the continuous advancement of technology, the application of wind power generation is expanding. The wind turbine generator is a key component of wind power generation equipment.

[0003] At present, during the use of existing wind turbines, as the rotor rotates, the rotor will generate heat under the action of electromagnetic induction. The heat is difficult to dissipate and is prone to high temperatures. In severe cases, it will burn out, causing economic losses. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A horizontal axis permanent magnet direct drive wind turbine generator, comprising: A nacelle and a base installed at the side of the nacelle inner cavity, a support mechanism installed at the bottom of the nacelle inner cavity, and a stator mechanism installed in the middle of the nacelle inner wall; a rotor mechanism, the rotor mechanism being driven by the blades to rotate and generate wind power, the rotor mechanism being mounted in the middle of the nacelle via a base; The rotor mechanism includes a connecting shaft, the outer cylindrical surface of the connecting shaft is rotatably mounted at the center of the base, one end of the surface of the connecting shaft is fixedly mounted with a blade hub, and the blade hub is mounted at a position close to the base, the middle of the outer cylindrical surface of the connecting shaft is fixedly connected with a rotor yoke, the surface of the rotor yoke is fixedly mounted with a rotor permanent magnet pole, the side of the surface of the rotor yoke is fixedly connected with a fan blade, and the side of the outer cylindrical surface of the connecting shaft is rotatably mounted with a rolling wheel through a frame. By mounting the wind turbine blades on the blade hub, utilizing the wind force to blow the wind turbine blades, and with the base supporting the rotation of the connecting shaft, the connecting shaft is driven to rotate by the wind turbine blades, and the rotor permanent magnet poles can be driven to rotate together through the connection of the rotor yoke. When the rotor permanent magnet poles rotate, they will cut the magnetic field formed around the stator core ring and the stator winding combination, thereby generating an induced electromotive force and forming alternating current, which can then generate electricity.

[0005] Preferably, the connecting shaft is installed horizontally, and the central axis in the middle of the connecting shaft coincides with the central axis in the middle of the cabin. The connecting shaft passes through the center of the base. As the connecting shaft drives the rotor yoke to rotate, the fan blades rotate with the rotor yoke. Combined with the inclined installation of the fan blades, the circular rotation of the fan blades can be used to fan the air around the rotor permanent magnet poles, accelerating the air flow, thereby helping to carry away heat through the airflow, achieving the effect of heat dissipation. The rotor permanent magnet poles are not prone to high-temperature burnout, and are safe and reliable.

[0006] Preferably, the surface of the fan blades is an arc-shaped surface, and the fan blades are installed at an angle, and the fan blades are evenly distributed on the sides of the rotor yoke surface.

[0007] Preferably, the stator mechanism includes an annular fixing part, the surface of the annular fixing part is fixedly installed in the middle of the inner wall of the cabin through a T-shaped part, the inner side surface of the annular fixing part is fixedly connected to a guide connecting plate, the end of the guide connecting plate away from the inner side surface of the annular fixing part is fixedly connected to the stator core ring, the inner side surface of the stator core ring is fixedly installed with a stator winding, the stator winding is sleeved on the surface of the rotor permanent magnet pole, and is installed in the middle of the cabin cavity by means of an annular fixing part, and the positions of the stator core ring and the stator winding are fixed under the connection of the guide connecting plate, and the guide connecting plates are evenly distributed between the inner side surface of the annular fixing part and the stator core ring, so that the support points for the stator core ring can be increased, so that the stator core ring and the stator winding are more stable and firm without shaking.

[0008] Preferably, the guide connecting plates are evenly distributed on the inner side of the annular fixing member, and two adjacent guide connecting plates form a V-shape. By evenly distributing the guide connecting plates on the surface of the stator core ring, the guide connecting plates can conduct heat to the stator core ring through the heat transfer principle, thereby removing heat. As the fan blades rotate in a circle, the air in the cabin is fanned, so that the airflow enters between two adjacent guide connecting plates. The fan blades rotate continuously, so that the air is blown and combined with the two adjacent guide connecting plates to form a V shape, so that the diameter of the gas outflow is smaller than the air inlet, which speeds up the gas flow speed and dissipates heat quickly, which helps to improve the heat transfer efficiency.

[0009] Preferably, the annular fixing member, the stator core ring, the stator winding and the rotor permanent magnet are concentric circles.

[0010] Preferably, the support mechanism includes an oil storage tank, a first shaft cover and a second shaft cover, the bottom of the oil storage tank is fixedly installed to the bottom of the cabin cavity by screws, the bottom of the first shaft cover is fixedly installed to the middle of the top of the oil storage tank by screws, and the bottom of the second shaft cover is fixedly installed to the top of the first shaft cover by screws, the connecting shaft passes through the center of the first shaft cover and the center of the second shaft cover, and conical wheels are rotatably installed on the sides of the inner side surfaces of the first shaft cover and the second shaft cover, and the conical surface of the conical wheel surface is in contact with the outer cylindrical surface of the connecting shaft. The cam is secured to the engine compartment by a spring which is secured to the engine compartment by a spring which is secured to the engine compartment by a spring which is secured to the engine compartment by a spring which is secured to the engine compartment by a spring which is secured to the engine compartment by a spring which is secured to the engine compartment by a spring which is secured to the engine compartment by a spring

[0011] Preferably, the bottom of the first shaft cover is connected to the top of the oil storage tank, the first shaft cover and the second shaft cover are sealed, the second shaft cover is installed directly above the first shaft cover, and the conical wheels are evenly distributed on the sides of the inner side of the first shaft cover and the sides of the inner side of the second shaft cover.

[0012] Preferably, the oil injection lubrication assembly includes a flat strip tube, the surface of the flat strip tube is fixedly connected to the middle of the inner wall of the first shaft cover and the middle of the inner wall of the second shaft cover, and the flat strip tube bypasses the surface of the rolling wheel, and an oil injection hole is opened at the side of the surface of the flat strip tube, and a one-way valve is installed at the bottom of the surface of the flat strip tube. By utilizing the contact between the rolling wheel and the flat strip tube, the flat strip tube can be rolled and pressed by the rolling wheel. After the flat strip tube is rolled, under the action of the pressure difference, the oil port at the bottom end of the flat strip tube draws lubricating oil from the oil storage tank, and the one-way valve controls the oil circuit in one direction, so that the lubricating oil is sprayed from the oil injection hole to the conical wheel, so that the lubricating oil can adhere to the surface of the conical wheel, thereby achieving a lubricating effect, reducing the wear between the conical wheel and the connecting shaft, and extending the service life.

[0013] Preferably, the oil port at the bottom of the flat strip tube extends to the interior of the oil storage tank, and the oil spray holes are evenly distributed on both sides of the surface of the flat strip tube that are symmetrical. As the oil spray holes spray oil onto the surface of the conical wheel, after lubricating the conical wheel, the lubricating oil flows downward under the action of gravity, and the lubricating oil flowing downward is collected by the first shaft cover, so that the lubricating oil gathers at the bottom of the first shaft cover and flows back to the interior of the oil storage tank, so that the lubricating oil is recycled and reused, thereby reducing resource waste.

[0014] The present invention provides a horizontal axis permanent magnet direct drive wind turbine generator. It has the following beneficial effects: 1. This horizontal axis permanent magnet direct drive wind turbine utilizes the wind force to move the wind turbine blades, and with the base supporting the rotation of the connecting shaft, the connecting shaft is driven by the wind turbine blades to rotate. The rotor permanent magnet poles can be driven to rotate together through the connection of the rotor yoke. When the rotor permanent magnet poles rotate, they will cut the magnetic field formed around the stator core ring and stator winding combination, generate induced electromotive force, form alternating current, and thus generate electricity.

[0015] 2. This horizontal axis permanent magnet direct drive wind turbine, as the connecting shaft drives the rotor yoke to rotate, causes the fan blades to rotate along with the rotor yoke. Combined with the tilted installation of the fan blades, the circular rotation of the fan blades can be used to fan the air around the rotor permanent magnet poles, accelerating the air flow, thereby helping to carry away heat through the airflow and achieving a heat dissipation effect. The rotor permanent magnet poles are not prone to high temperature burnout, and are safe and reliable.

[0016] 3. The horizontal axis permanent magnet direct drive wind turbine is installed in the middle of the cabin cavity using an annular fixing part, and the position of the stator core ring and the stator winding is fixed by the connection of the guide connecting plate. The guide connecting plate is evenly distributed between the inner side of the annular fixing part and the stator core ring, which can increase the support points for the stator core ring, making the stator core ring and the stator winding more stable and firm without shaking.

[0017] Fourth, the horizontal axis permanent magnet direct drive wind turbine can conduct heat through the guide connecting plate and the heat transfer principle, so that the guide connecting plate conducts heat to the stator core ring, and the heat is discharged. As the fan blades rotate in a circle, the air in the cabin is fanned, so that the air flow enters between two adjacent guide connecting plates. The fan blades rotate continuously, so that the air is blown and the two adjacent guide connecting plates form a V shape, so that the diameter of the gas outflow is smaller than the air inlet, so that the gas flow speed is accelerated, the heat is dissipated quickly, and it helps to improve the heat transfer efficiency.

[0018] 5. The horizontal axis permanent magnet direct drive wind turbine is supported by an oil storage tank and a first shaft cover, and the second shaft cover clamps the connecting shaft between the first shaft cover and the second shaft cover, so that the connecting shaft can be positioned, and the conical surface of the conical wheel is fitted with the outer cylindrical surface of the connecting shaft. As the connecting shaft rotates, the conical wheel provides rolling support for the connecting shaft, reducing friction, making the connecting shaft rotate smoothly, not prone to jamming, and reducing energy loss.

[0019] 6. This horizontal-axis permanent magnet direct-drive wind turbine uses a rolling wheel to roll and press the flat strip tube. After the flat strip tube is rolled, under the action of the pressure difference, the oil port at the bottom end of the flat strip tube draws lubricating oil from the oil storage tank and controls the oil circuit in one direction through a one-way valve, so that the lubricating oil is sprayed from the oil spray hole to the conical wheel, so that the lubricating oil adheres to the surface of the conical wheel, which has a lubricating effect, reduces the wear between the conical wheel and the connecting shaft, and extends the service life.

[0020] 7. In the horizontal-axis permanent magnet direct-drive wind turbine, after the conical wheel is lubricated, the lubricating oil flows downward under the action of gravity, and the first shaft cover collects the lubricating oil flowing downward, so that the lubricating oil gathers at the bottom of the first shaft cover and flows back into the oil storage tank, thereby recycling and reusing the lubricating oil and reducing resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the horizontal axis permanent magnet direct drive wind turbine of the present invention; Figure 2 This is a schematic diagram of the internal structure of the cross-section of the horizontal axis permanent magnet direct-drive wind turbine generator of the present invention; Figure 3 Schematic diagram of the connection structure between the rotor mechanism and the nacelle of the present invention; Figure 4 Schematic diagram of the overall structure of the rotor mechanism of the present invention; Figure 5 Schematic diagram of the connection structure between the stator mechanism and the nacelle of the present invention; Figure 6A schematic diagram of the connection and separation structure between the support mechanism and the connecting shaft of the present invention; Figure 7 This is a schematic diagram of the disassembled structure of the support mechanism of the present invention; Figure 8 This is a schematic diagram of the internal structure of the second shaft cover of the present invention when viewed from above.

[0022] In the figure: 1. Cabin; 2. Base; 3. Support mechanism; 4. Rotor mechanism; 5. Stator mechanism; 31. Oil storage tank; 32. First shaft cover; 33. Second shaft cover; 34. Conical wheel; 35. Oil inlet hopper; 36. Oil injection lubrication assembly; 361. Flat strip tube; 362. Oil injection hole; 363. One-way valve; 41. Connecting shaft; 42. Blade hub; 43. Rotor yoke; 44. Rotor permanent magnet pole; 45. Fan blade; 46. Rolling wheel; 51. Annular fixing member; 52. Guide connecting plate; 53. Stator core ring; 54. Stator winding. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The first embodiment, as Figures 1 to 4 As shown, the present invention provides a technical solution: A horizontal axis permanent magnet direct drive wind turbine generator, comprising: A nacelle 1, and a base 2 mounted on the side of the inner cavity of the nacelle 1, a support mechanism 3 mounted on the bottom of the inner cavity of the nacelle 1, and a stator mechanism 5 mounted in the middle of the inner wall of the nacelle 1; The rotor mechanism 4 is driven by the blades to rotate and generate wind power. The rotor mechanism 4 is installed in the middle of the nacelle 1 through the base 2; Among them, the rotor mechanism 4 includes a connecting shaft 41, the outer cylindrical surface of the connecting shaft 41 is rotatably mounted at the center of the base 2, one end of the surface of the connecting shaft 41 is fixedly mounted with a blade hub 42, and the blade hub 42 is mounted at a position close to the base 2, the middle of the outer cylindrical surface of the connecting shaft 41 is fixedly connected with a rotor yoke 43, the surface of the rotor yoke 43 is fixedly mounted with a rotor permanent magnet 44, the side of the surface of the rotor yoke 43 is fixedly connected with a fan blade 45, and the side of the outer cylindrical surface of the connecting shaft 41 is rollingly mounted with a roller through the frame. The pressure wheel 46 installs the wind turbine blades onto the blade hub 42, utilizes the wind force to blow the wind turbine blades, and under the rotation support of the base 2 on the connecting shaft 41, the connecting shaft 41 is driven to rotate by the wind turbine blades, and can be connected through the rotor yoke 43, so that the rotor permanent magnet 44 is driven to rotate together. When the rotor permanent magnet 44 rotates, it will cut the magnetic field formed around the combination of the stator core ring 53 and the stator winding 54, generate induced electromotive force, form alternating current, and then generate electricity.

[0025] The connecting shaft 41 is installed horizontally, and the central axis of the middle of the connecting shaft 41 coincides with the central axis of the middle of the nacelle 1 , and the connecting shaft 41 passes through the center of the base 2 .

[0026] As the connecting shaft 41 drives the rotor yoke 43 to rotate, the fan blades 45 will rotate together with the rotor yoke 43. Combined with the inclined installation of the fan blades 45, the fan blades 45 can be used to rotate in a circle to fan the air around the rotor permanent magnet 44, accelerating the air flow, thereby helping to carry away heat through the airflow, achieving a heat dissipation effect, and the rotor permanent magnet 44 is not easily burned by high temperature.

[0027] The surface of the fan blades 45 is an arc-shaped surface, and the fan blades 45 are installed at an angle. The fan blades 45 are evenly distributed on the sides of the surface of the rotor yoke 43.

[0028] The second embodiment, based on the first embodiment, see Figures 1 to 5 As shown: The stator mechanism 5 includes an annular fixing part 51, the surface of the annular fixing part 51 is fixedly installed in the middle of the inner wall of the nacelle 1 through a T-shaped part, and the inner side of the annular fixing part 51 is fixedly connected with a guide connecting plate 52. The end of the guide connecting plate 52 away from the inner side of the annular fixing part 51 is fixedly connected with a stator core ring 53, and the inner side of the stator core ring 53 is fixedly installed with a stator winding 54. The stator winding 54 is sleeved on the surface of the rotor permanent magnet pole 44. The annular fixing part 51 is installed in the middle of the inner cavity of the nacelle 1, and the guide connecting plate 52 is connected to fix the positions of the stator core ring 53 and the stator winding 54. The guide connecting plate 52 is evenly distributed between the inner side of the annular fixing part 51 and the stator core ring 53, so that the support points of the stator core ring 53 can be increased, and the stator core ring 53 and the stator winding 54 are more stable and firm.

[0029] The flow guide connecting plates 52 are evenly distributed on the inner side surface of the annular fixing member 51 , and two adjacent flow guide connecting plates 52 form a V shape.

[0030] By evenly distributing the guide connecting plates 52 on the surface of the stator core ring 53, the guide connecting plates 52 can conduct heat to the stator core ring 53 through the principle of heat transfer, thereby dissipating the heat. As the fan blades 45 rotate in a circle, the air in the cabin 1 is fanned, so that the air flow enters between two adjacent guide connecting plates 52. The fan blades 45 rotate continuously, so that the air is blown and combined with the two adjacent guide connecting plates 52 to form a V shape, so that the diameter of the gas outflow is smaller than the air inlet, which accelerates the gas flow rate.

[0031] The annular fixing member 51 , the stator core ring 53 , the stator winding 54 and the rotor permanent magnet pole 44 are concentric circles.

[0032] The third embodiment, based on the first and second embodiments, see Figures 1 to 8 As shown: The supporting mechanism 3 includes an oil storage tank 31, a first shaft cover 32 and a second shaft cover 33. The bottom of the oil storage tank 31 is fixed to the bottom of the inner cavity of the engine room 1 by screws, the bottom of the first shaft cover 32 is fixed to the middle of the top of the oil storage tank 31 by screws, and the bottom of the second shaft cover 33 is fixed to the top of the first shaft cover 32 by screws. The connecting shaft 41 passes through the center of the first shaft cover 32 and the center of the second shaft cover 33. Conical wheels 34 are rotatably installed on the sides of the inner side surfaces of the first shaft cover 32 and the second shaft cover 33, and the conical surface of the conical wheel 34 fits with the outer cylindrical surface of the connecting shaft 41. An oil inlet hopper 35 is fixedly installed on the side of the top of the oil tank 31, and an oil injection lubrication assembly 36 is installed between the middle of the inner wall of the first shaft cover 32 and the middle of the inner wall of the second shaft cover 33. It is supported by the oil storage tank 31 and the first shaft cover 32, and the second shaft cover 33 clamps the connecting shaft 41 between the first shaft cover 32 and the second shaft cover 33, so that the connecting shaft 41 can be positioned, and the conical surface of the conical wheel 34 is fit with the outer cylindrical surface of the connecting shaft 41. As the connecting shaft 41 rotates, the conical wheel 34 rolls and supports the connecting shaft 41, and reduces friction through rolling friction, so that the connecting shaft 41 rotates smoothly.

[0033] The bottom of the first shaft cover 32 is connected to the top of the oil storage tank 31, the first shaft cover 32 and the second shaft cover 33 are sealed, the second shaft cover 33 is installed directly above the first shaft cover 32, and the conical wheels 34 are evenly distributed on the sides of the inner side of the first shaft cover 32 and the sides of the inner side of the second shaft cover 33.

[0034] The oil injection lubrication assembly 36 includes a flat belt-shaped tube 361. The surface of the flat belt-shaped tube 361 is fixedly connected to the middle of the inner wall of the first shaft cover 32 and the middle of the inner wall of the second shaft cover 33. The flat belt-shaped tube 361 bypasses the surface of the rolling wheel 46. An oil injection hole 362 is opened on the side of the surface of the flat belt-shaped tube 361. A one-way valve 363 is installed at the bottom of the surface of the flat belt-shaped tube 361. By rotating the connecting shaft 41, the rolling wheel 46 can be driven to rotate in a circle. The rolling wheel 46 and the oil injection hole 362 are connected. When the flat strip tube 361 contacts the conical wheel 34, the flat strip tube 361 is rolled and pressed by the rolling wheel 46. After the flat strip tube 361 is rolled, under the action of the pressure difference, the oil port at the bottom end of the flat strip tube 361 draws lubricating oil from the oil storage tank 31, and controls the oil circuit in one direction through the one-way valve 363, so that the lubricating oil is sprayed from the oil spray hole 362 to the conical wheel 34. The lubricating oil adheres to the surface of the conical wheel 34 for lubrication, thereby reducing the wear between the conical wheel 34 and the connecting shaft 41.

[0035] The oil port at the bottom of the flat strip tube 361 extends to the interior of the oil storage tank 31, and the oil injection holes 362 are evenly distributed on both sides of the surface of the flat strip tube 361. As the oil injection holes 362 spray oil onto the surface of the conical wheel 34, after lubricating the conical wheel 34, the lubricating oil flows downward under the action of gravity, and the lubricating oil flowing downward is collected by the first shaft cover 32, so that the lubricating oil gathers at the bottom of the first shaft cover 32 and flows back to the interior of the oil storage tank 31, so that the lubricating oil is recycled and reused.

[0036] When in use, first open the oil inlet hopper 35, inject a proper amount of lubricating oil into the oil storage tank 31, and then seal the oil inlet hopper 35; The annular fixing member 51 is installed in the middle of the inner cavity of the nacelle 1, and the guide connecting plate 52 is connected to fix the position of the stator core ring 53 and the stator winding 54. The guide connecting plates 52 are evenly distributed between the inner side of the annular fixing member 51 and the stator core ring 53, which can increase the support points for the stator core ring 53, making the stator core ring 53 and the stator winding 54 more stable and firm. By mounting the wind turbine blades on the blade hub 42, utilizing the wind force to move the wind turbine blades, and with the base 2 supporting the connecting shaft 41, the connecting shaft 41 is driven to rotate by the wind turbine blades. The rotor permanent magnet 44 is driven to rotate together with the rotor through the connection of the rotor yoke 43. As the rotor permanent magnet 44 rotates, it cuts the magnetic field formed around the combination of the stator core ring 53 and the stator winding 54, generating an induced electromotive force and forming alternating current, thereby generating electricity. At the same time, as the connecting shaft 41 drives the rotor yoke 43 to rotate, the fan blades 45 will rotate along with the rotor yoke 43. Combined with the tilted installation of the fan blades 45, the fan blades 45 can be used to rotate in a circular manner to fan the air around the rotor permanent magnet poles 44, accelerating the air flow, thereby helping to remove heat through the airflow, achieving a heat dissipation effect, and preventing the rotor permanent magnet poles 44 from being burned out by high temperatures. Furthermore, the guide connecting plates 52 are evenly distributed on the surface of the stator core ring 53. Through the principle of heat transfer, the guide connecting plates 52 conduct heat to the stator core ring 53, thereby dissipating the heat. Furthermore, as the fan blades 45 rotate in a circular motion, the air in the cabin 1 is fanned, so that the air flows into between two adjacent guide connecting plates 52. The fan blades 45 continuously rotate, so that the air is blown and combined with the two adjacent guide connecting plates 52 to form a V-shape, so that the diameter of the gas outflow is smaller than the air inlet, thereby accelerating the gas flow rate. Furthermore, the connecting shaft 41 is supported by the oil storage tank 31 and the first shaft cover 32, and the second shaft cover 33 clamps the connecting shaft 41 between the first shaft cover 32 and the second shaft cover 33, so that the connecting shaft 41 can be positioned. The conical surface of the conical wheel 34 fits with the outer circumferential surface of the connecting shaft 41. As the connecting shaft 41 rotates, the conical wheel 34 rolls on the connecting shaft 41, reducing friction through rolling friction, so that the connecting shaft 41 rotates smoothly. The rotation of the connecting shaft 41 can drive the rolling wheel 46 to rotate in a circular motion. The contact between the rolling wheel 46 and the flat belt tube 361 can cause the flat belt tube 361 to be rolled and pressed by the rolling wheel 46. After the flat belt tube 361 is rolled, under the action of the pressure difference, the oil port at the bottom end of the flat belt tube 361 draws lubricating oil from the oil storage tank 31, and the one-way valve 363 controls the oil circuit in one direction, so that the lubricating oil is sprayed from the oil spray hole 362 to the conical wheel 34. The lubricating oil adheres to the surface of the conical wheel 34 for lubrication, thereby reducing the wear between the conical wheel 34 and the connecting shaft 41. As the oil injection hole 362 sprays oil onto the surface of the conical wheel 34 and lubricates the conical wheel 34, the lubricating oil flows downward under the action of gravity and is collected by the first shaft cover 32 so that the lubricating oil gathers at the bottom of the first shaft cover 32 and flows back into the oil storage tank 31 for recycling and reuse.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A horizontal axis permanent magnet direct drive wind turbine, characterized in that: include: A cabin (1), and a base (2) installed at the side of the inner cavity of the cabin (1), a support mechanism (3) installed at the bottom of the inner cavity of the cabin (1), and a stator mechanism (5) installed in the middle of the inner wall of the cabin (1); A rotor mechanism (4), the rotor mechanism (4) is driven by the blades to rotate and generate wind power, and the rotor mechanism (4) is installed in the middle of the cabin (1) through the base (2); The rotor mechanism (4) includes a connecting shaft (41), the outer cylindrical surface of the connecting shaft (41) is rotatably mounted at the center of the base (2), a blade hub (42) is fixedly mounted on one end of the surface of the connecting shaft (41), and the blade hub (42) is mounted at a position close to the base (2), a rotor yoke (43) is fixedly connected to the middle of the outer cylindrical surface of the connecting shaft (41), a rotor permanent magnet (44) is fixedly mounted on the surface of the rotor yoke (43), a fan blade (45) is fixedly connected to the side of the surface of the rotor yoke (43), and a rolling wheel (46) is rollingly mounted on the side of the outer cylindrical surface of the connecting shaft (41) through a frame.

2. The horizontal axis permanent magnet direct drive wind turbine according to claim 1, characterized in that: The connecting shaft (41) is installed horizontally, and the central axis of the middle of the connecting shaft (41) coincides with the central axis of the middle of the cabin (1), and the connecting shaft (41) passes through the center of the base (2).

3. The horizontal axis permanent magnet direct drive wind turbine according to claim 1, characterized in that: The surface of the fan blades (45) is an arc-shaped curved surface, and the fan blades (45) are installed at an angle, and the fan blades (45) are evenly distributed on the sides of the surface of the rotor yoke (43).

4. The horizontal axis permanent magnet direct drive wind turbine according to claim 1, characterized in that: The stator mechanism (5) comprises an annular fixing member (51), the surface of the annular fixing member (51) is fixedly mounted on the middle of the inner wall of the nacelle (1) via a T-shaped member, the inner side surface of the annular fixing member (51) is fixedly connected to a flow guide connecting plate (52), one end of the flow guide connecting plate (52) away from the inner side surface of the annular fixing member (51) is fixedly connected to a stator core ring (53), the inner side surface of the stator core ring (53) is fixedly mounted with a stator winding (54), and the stator winding (54) is sleeved on the surface of the rotor permanent magnet pole (44).

5. The horizontal axis permanent magnet direct drive wind turbine according to claim 4, characterized in that: The guide connecting plates (52) are evenly distributed on the inner side of the annular fixing member (51), and two adjacent guide connecting plates (52) form a V shape.

6. The horizontal axis permanent magnet direct drive wind turbine according to claim 4, characterized in that: The annular fixing member (51), the stator iron core ring (53), the stator winding (54) and the rotor permanent magnet pole (44) are concentric circles.

7. The horizontal axis permanent magnet direct drive wind turbine according to claim 1, characterized in that: The support mechanism (3) includes an oil storage tank (31), a first shaft cover (32) and a second shaft cover (33), the bottom of the oil storage tank (31) is fixedly mounted to the bottom of the inner cavity of the cabin (1) by screws, the bottom of the first shaft cover (32) is fixedly mounted to the middle of the top of the oil storage tank (31) by screws, the bottom of the second shaft cover (33) is fixedly mounted to the top of the first shaft cover (32) by screws, and the connecting shaft (41) is connected from the center of the first shaft cover (32) to the second shaft cover. The center of the cover (33) passes through, and the sides of the inner side of the first shaft cover (32) and the sides of the inner side of the second shaft cover (33) are both rotatably mounted with conical wheels (34), and the conical surface of the surface of the conical wheel (34) fits with the outer cylindrical surface of the connecting shaft (41). An oil inlet hopper (35) is fixedly mounted on the side of the top of the oil storage tank (31), and an oil spray lubrication component (36) is installed between the middle of the inner wall of the first shaft cover (32) and the middle of the inner wall of the second shaft cover (33).

8. The horizontal axis permanent magnet direct drive wind turbine according to claim 7, characterized in that: The bottom of the first shaft cover (32) is communicated with the top of the oil storage tank (31), the first shaft cover (32) and the second shaft cover (33) are sealed, the second shaft cover (33) is installed directly above the first shaft cover (32), and the conical wheels (34) are evenly distributed on the side of the inner side of the first shaft cover (32) and the side of the inner side of the second shaft cover (33).

9. The horizontal axis permanent magnet direct drive wind turbine according to claim 7, characterized in that: The oil injection lubrication assembly (36) includes a flat belt-shaped tube (361), the surface of the flat belt-shaped tube (361) is fixedly connected to the middle of the inner wall of the first shaft cover (32) and the middle of the inner wall of the second shaft cover (33), and the flat belt-shaped tube (361) bypasses the surface of the rolling wheel (46). An oil injection hole (362) is opened on the side of the surface of the flat belt-shaped tube (361), and a one-way valve (363) is installed at the bottom of the surface of the flat belt-shaped tube (361).

10. The horizontal axis permanent magnet direct drive wind turbine according to claim 9, characterized in that: The oil port at the bottom of the flat strip-shaped tube (361) extends to the interior of the oil storage tank (31), and the oil injection holes (362) are evenly distributed on two symmetrical sides of the surface of the flat strip-shaped tube (361).

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