Horizontal axis permanent magnet direct drive wind turbine

Abstract

This invention discloses a horizontal-axis permanent magnet direct-drive wind turbine, which relates to the field of wind power generation technology. The horizontal-axis permanent magnet direct-drive wind turbine includes a nacelle, a stator mechanism, and a rotor mechanism. The rotor mechanism includes a connecting shaft, with a blade hub fixedly mounted at one end of the connecting shaft surface, and the blade hub is mounted near the base. A rotor yoke is fixedly connected to the middle of the outer circumference of the connecting shaft, and rotor permanent magnet poles are fixedly mounted on the surface of the rotor yoke. Fan blades are fixedly connected to the side of the rotor yoke surface. The stator mechanism includes an annular fixing member, with a flow-guiding connecting plate fixedly connected to the inner surface of the annular fixing member. A stator core ring is fixedly connected to the end of the flow-guiding connecting plate away from the inner surface of the annular fixing member, and stator windings are fixedly mounted on the inner surface of the stator core ring. This design achieves rapid heat dissipation, timely heat dissipation, smooth rotation, reduced friction, reduced jamming, reduced energy loss, and ensures safety and reliability.

Description

Technical Field

[0001] This invention relates to the field of wind power generation technology, specifically to a horizontal axis permanent magnet direct-drive wind turbine. Background Technology

[0002] In recent years, wind energy has played a crucial role in the global development of new energy sources. Wind power generation converts renewable wind energy into electrical energy usable by electrical equipment. Utilizing wind energy for power generation is environmentally friendly and sustainable, especially in high-altitude areas with abundant winds. It involves using sustainably generated wind energy to drive mechanical equipment, converting mechanical energy into electrical energy. The wind drives the blades of a wind turbine, which in turn rotates the rotor of a permanent magnet direct-drive generator. The stator windings cut the magnetic lines of force generated by the rotor, thus generating an induced electromotive force and producing electricity. With rapid societal development and continuous technological advancements, the application of wind power generation is increasing. In wind power generation equipment, the wind turbine is one of the most important components.

[0003] Currently, in the operation of existing wind turbines, the rotor generates heat under electromagnetic induction as it rotates. This heat is difficult to dissipate, which can easily lead to high temperatures and, in severe cases, burn out, causing economic losses. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: A horizontal-axis permanent magnet direct-drive wind turbine includes: The cabin, and the base installed on the side of the cabin cavity, the bottom of the cabin cavity is equipped with a support mechanism, and the middle of the cabin wall is equipped with a stator mechanism. The rotor mechanism is driven by the blades to rotate and generate wind power. The rotor mechanism is installed in the middle of the nacelle via a base. The rotor mechanism includes a connecting shaft, the outer circular surface of which is rotatably mounted to the center of the base. A blade hub is fixedly mounted at one end of the connecting shaft, positioned near the base. A rotor yoke is fixedly connected to the middle of the outer circular surface of the connecting shaft. Rotor permanent magnet poles are fixedly mounted on the surface of the rotor yoke. Fan blades are fixedly connected to the sides of the rotor yoke. Rolling rollers are rolled along the sides of the outer circular surface of the connecting shaft via a frame. By mounting wind turbine blades onto the blade hub, the wind force propels the blades, and with the base supporting the rotation of the connecting shaft, the connecting shaft is driven to rotate by the wind turbine blades. Through the connection of the rotor yoke, the rotor permanent magnet poles are driven to rotate as well. When the rotor permanent magnet poles rotate, they cut the magnetic field formed around the stator core ring and stator winding assembly, generating an induced electromotive force and forming alternating current, thus producing electricity.

[0005] Preferably, the connecting shaft is installed horizontally, and the central axis of the connecting shaft coincides with the central axis of the nacelle. The connecting shaft passes through the center of the base. As the connecting shaft drives the rotor yoke to rotate, the fan blades rotate together with the rotor yoke. Combined with the inclined installation of the fan blades, the circumferential rotation of the fan blades can be used to fan the air around the rotor permanent magnet poles, accelerating the airflow. This helps to remove heat through airflow, achieving a heat dissipation effect. The rotor permanent magnet poles are not prone to high-temperature burnout, making it safe and reliable.

[0006] Preferably, the surface of the fan blade is an arc-shaped curved surface, and the fan blade is installed at an angle, with the fan blade evenly distributed on the side of the rotor yoke surface.

[0007] Preferably, the stator mechanism includes an annular fixing member. The surface of the annular fixing member is fixedly installed in the middle of the inner wall of the nacelle by a T-shaped member. A flow guide connecting plate is fixedly connected to the inner side of the annular fixing member. A stator core ring is fixedly connected to the end of the flow guide connecting plate away from the inner side of the annular fixing member. A stator winding is fixedly installed on the inner side of the stator core ring. The stator winding is sleeved on the surface of the rotor permanent magnet pole. By using the annular fixing member to install in the middle of the inner cavity of the nacelle and the connection of the flow guide connecting plate, the positions of the stator core ring and the stator winding are fixed. By using the flow guide connecting plate evenly distributed between the inner side of the annular fixing member and the stator core ring, the support points for the stator core ring can be increased, making the stator core ring and the stator winding more stable and firm, and preventing vibration.

[0008] Preferably, the flow guiding connecting plates are evenly distributed on the inner side of the annular fixing member, and two adjacent flow guiding connecting plates form a V-shape. By evenly distributing the flow guiding connecting plates on the surface of the stator core ring, the heat can be conducted to the stator core ring through the principle of heat transfer, and the heat will be discharged. As the fan blades rotate in a circular motion, they fan the air inside the cabin, causing the airflow to enter between two adjacent guide plates. With the continuous rotation of the fan blades, the air is blown and, combined with the two adjacent guide plates, forms a V-shape, making the diameter of the gas outlet smaller than that of the air inlet. This increases the gas flow speed, dissipates heat quickly, and helps improve heat transfer efficiency.

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

[0010] Preferably, the support mechanism includes an oil tank, a first shaft cover, and a second shaft cover. The bottom of the oil tank is fixedly installed to the bottom of the engine compartment cavity by screws. The bottom of the first shaft cover is fixedly installed to the middle of the top of the oil tank by screws. 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. Conical wheels are rolled on the sides of the inner surfaces of the first and second shaft covers, and the conical surface of the conical wheel is flush with the outer surface of the connecting shaft. The oil tank is fitted with an oil inlet hopper fixedly installed on the side of the top of the oil tank. An oil spraying lubrication assembly is installed between the middle of the inner wall of the first shaft cover and the middle of the inner wall of the second shaft cover. Supported by the oil tank and the first shaft cover, and with the second shaft cover clamping the connecting shaft between the first and second shaft covers, the connecting shaft can be positioned. The conical surface of the conical wheel fits against the outer circular surface of the connecting shaft. As the connecting shaft rotates, the conical wheel provides rolling support for the connecting shaft, reducing friction and making the connecting shaft rotate smoothly without jamming, thus reducing energy loss.

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

[0012] Preferably, the oil spraying 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. The flat strip tube passes over the surface of the rolling roller. An oil spray hole is opened on the side of the surface of the flat strip tube. A one-way valve is installed at the bottom of the surface of the flat strip tube. By contacting the rolling roller with the flat strip tube, the flat strip tube can be rolled and pressed by the rolling roller. After being rolled, under the action of pressure difference, the oil port at the bottom of the flat strip tube draws lubricating oil from the oil reservoir. Through the one-way control of the oil circuit by the one-way valve, the lubricating oil is sprayed from the oil spray hole to the conical wheel, so that the surface of the conical wheel is covered with lubricating oil, which achieves a lubrication effect, reduces the wear between the conical wheel and the connecting shaft, and extends the service life.

[0013] Preferably, the oil inlet at the bottom of the flat strip tube extends into the interior of the oil reservoir. The oil spray holes are evenly distributed on both symmetrical sides of the surface of the flat strip tube. As the oil spray holes spray oil onto the surface of the conical wheel, the conical wheel is lubricated. Under the action of gravity, the lubricating oil flows downward and is collected by the first shaft cover. This allows the lubricating oil to gather at the bottom of the first shaft cover and flow back into the interior of the oil reservoir, thus recycling and reusing the lubricating oil and reducing resource waste.

[0014] This invention provides a horizontal-axis permanent magnet direct-drive wind turbine generator. It has the following advantages: I. This horizontal axis permanent magnet direct-drive wind turbine utilizes wind power to blow the wind turbine blades. With the base supporting the rotation of the connecting shaft, the connecting shaft is driven to rotate by the wind turbine blades. Through the connection of the rotor yoke, the rotor permanent magnet poles are driven to rotate together. When the rotor permanent magnet poles rotate, they cut the magnetic field formed around the stator core ring and stator winding combination, generating an induced electromotive force and forming alternating current, thus generating electricity.

[0015] Second, 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 together with the rotor yoke. Combined with the inclined installation of the fan blades, the circumferential rotation of the fan blades can fan the air around the rotor permanent magnet poles, accelerating the airflow. This helps to carry away heat through the airflow, achieving a heat dissipation effect. The rotor permanent magnet poles are not prone to high temperature burnout, making it safe and reliable.

[0016] Third, this horizontal axis permanent magnet direct-drive wind turbine uses an annular fixing component installed in the middle of the nacelle cavity. With the connection of the flow guide plate, the position of the stator core ring and stator winding is fixed. The flow guide plate is evenly distributed on the inner side of the annular fixing component and between the stator core ring, which increases the support points for the stator core ring, making the stator core ring and stator winding more stable and firm, and preventing vibration.

[0017] IV. This horizontal axis permanent magnet direct-drive wind turbine, through the heat conduction of the guide plate, can conduct heat to the stator core ring through the principle of heat transfer, thus dissipating the heat. As the fan blades rotate, they fan the air in the nacelle, causing the airflow to enter between two adjacent guide plates. With the continuous rotation of the fan blades, the air is blown and, combined with the two adjacent guide plates forming a V-shape, the diameter of the gas outlet is smaller than that of the inlet, which increases the gas flow speed and facilitates rapid heat dissipation, thus improving heat transfer efficiency.

[0018] 5. This horizontal axis permanent magnet direct-drive wind turbine is supported by an oil tank and a first shaft cover. The second shaft cover clamps the connecting shaft between the first and second shaft covers, which can position the connecting shaft. The conical surface of the conical wheel fits against the outer circular surface of the connecting shaft. As the connecting shaft rotates, the conical wheel provides rolling support to the connecting shaft, reducing friction and making the connecting shaft rotate smoothly without jamming, thus reducing energy loss.

[0019] VI. This horizontal-axis permanent magnet direct-drive wind turbine uses a rolling roller to roll and press a flat strip tube. After being rolled, the flat strip tube draws lubricating oil from the oil tank through the oil port at the bottom of the flat strip tube under the action of pressure difference. The lubricating oil is sprayed from the oil injection hole to the conical wheel through the one-way control of the oil circuit by the one-way valve. This allows the surface of the conical wheel to be covered with lubricating oil, which has a lubricating effect, reduces the wear between the conical wheel and the connecting shaft, and extends the service life.

[0020] 7. In this horizontal axis permanent magnet direct drive wind turbine, after the conical wheel is lubricated, the lubricating oil flows downward under the action of gravity. The first shaft cover collects the downward flowing lubricating oil, causing the lubricating oil to gather at the bottom of the first shaft cover and flow back into the oil tank, thus recycling and reusing the lubricating oil and reducing resource waste. Attached Figure Description

[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 horizontal axis permanent magnet direct-drive wind turbine generator of the present invention. Figure 3 This is a schematic diagram of the connection structure between the rotor mechanism and the nacelle of the present invention; Figure 4 This is a schematic diagram of the overall structure of the rotor mechanism of the present invention; Figure 5 This is a schematic diagram of the connection structure between the stator mechanism and the cabin of the present invention; Figure 6This is a schematic diagram of the disassembled connection 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 bottom view of the internal structure of the second shaft cover of the present invention.

[0022] In the diagram: 1. Nacelle; 2. Base; 3. Support mechanism; 4. Rotor mechanism; 5. Stator mechanism; 31. Oil reservoir; 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 component; 52. Flow guide connecting plate; 53. Stator core ring; 54. Stator winding. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] First embodiment, such as Figures 1 to 4 As shown, the present invention provides a technical solution: A horizontal-axis permanent magnet direct-drive wind turbine includes: The cabin 1, and the base 2 installed on the side of the inner cavity of the cabin 1, the support mechanism 3 installed at the bottom of the inner cavity of the cabin 1, and the stator mechanism 5 installed in the middle of the inner wall of the cabin 1. Rotor mechanism 4 is driven by the blades to rotate and generate wind power. Rotor mechanism 4 is installed in the middle of the nacelle 1 through base 2. The rotor mechanism 4 includes a connecting shaft 41, the outer surface of which is rotatably mounted to the center of the base 2. A blade hub 42 is fixedly mounted at one end of the connecting shaft 41, and the blade hub 42 is positioned close to the base 2. A rotor yoke 43 is fixedly connected to the middle of the outer surface of the connecting shaft 41. A rotor permanent magnet pole 44 is fixedly mounted on the surface of the rotor yoke 43. Fan blades 45 are fixedly connected to the side of the surface of the rotor yoke 43. Rollers are rolled along the side of the outer surface of the connecting shaft 41 via a frame. The pressure wheel 46, by installing the wind turbine blades onto the blade hub 42, utilizes wind power to blow the wind turbine blades. Under the rotational support of the base 2 and the connecting shaft 41, the connecting shaft 41 is driven to rotate by the wind turbine blades. Through the connection of the rotor yoke 43, the rotor permanent magnet pole 44 is driven to rotate as well. When the rotor permanent magnet pole 44 rotates, it cuts the magnetic field formed around the stator core ring 53 and the stator winding 54, generating an induced electromotive force and forming alternating current, thus generating electricity.

[0025] The connecting shaft 41 is installed horizontally, and the central axis of the connecting shaft 41 coincides with the central axis of the cabin 1. 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 circumferential rotation of the fan blades 45 can be used to fan the air around the rotor permanent magnet pole 44, accelerate the air flow, and thus help to carry away heat through the airflow, achieving the effect of heat dissipation. The rotor permanent magnet pole 44 is not prone to high temperature burnout.

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

[0028] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 1 to 5 As shown: The stator mechanism 5 includes an annular fixing member 51. The surface of the annular fixing member 51 is fixedly installed in the middle of the inner wall of the nacelle 1 by a T-shaped member. A flow guide plate 52 is fixedly connected to the inner side of the annular fixing member 51. A stator core ring 53 is fixedly connected to the end of the flow guide plate 52 away from the inner side of the annular fixing member 51. A stator winding 54 is fixedly installed on the inner side of the stator core ring 53. The stator winding 54 is sleeved on the surface of the rotor permanent magnet pole 44. By using the annular fixing member 51 installed in the middle of the inner cavity of the nacelle 1 and the connection of the flow guide plate 52, the positions of the stator core ring 53 and the stator winding 54 are fixed. By using the flow guide plate 52 evenly distributed between the inner side of the annular fixing member 51 and the stator core ring 53, the support points for 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 guiding connecting plates 52 are evenly distributed on the inner side of the annular fixing member 51, and two adjacent flow guiding connecting plates 52 form a V-shape.

[0030] By evenly distributing the flow guide plates 52 on the surface of the stator core ring 53, the heat transfer principle allows the flow guide plates 52 to conduct heat to the stator core ring 53, thus dissipating the heat. As the fan blades 45 rotate in a circular motion, they fan the air inside the engine compartment 1, causing the airflow to enter between two adjacent flow guide plates 52. With the fan blades 45 continuously rotating, the air is blown and, combined with the two adjacent flow guide plates 52 forming a V-shape, the diameter of the gas outlet is smaller than that of the inlet, thus accelerating the gas flow speed.

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

[0032] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 1 to 8 As shown: The support mechanism 3 includes an oil tank 31, a first shaft cover 32, and a second shaft cover 33. The bottom of the oil tank 31 is fixedly installed to the bottom of the inner cavity of the engine room 1 by screws. The bottom of the first shaft cover 32 is fixedly installed to the middle of the top of the oil tank 31 by screws. The bottom of the second shaft cover 33 is fixedly installed to the top of the first shaft cover 32 by screws. A 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 rolled on the inner side of the first shaft cover 32 and the inner side of the second shaft cover 33, and the conical surface of the conical wheel 34 is in contact with the outer circular 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. An oil spraying 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. The connecting shaft 41 is positioned by the oil 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. The conical surface of the conical wheel 34 is in contact with the outer circular surface of the connecting shaft 41. As the connecting shaft 41 rotates, the conical wheel 34 provides rolling support for the connecting shaft 41. Through rolling friction, the friction is reduced, 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 tank 31. The first shaft cover 32 and the second shaft cover 33 are sealed together. The second shaft cover 33 is installed directly above the first shaft cover 32. 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.

[0034] The oil injection lubrication assembly 36 includes a flat strip tube 361. The surface of the flat strip 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 strip tube 361 passes around the surface of the rolling roller 46. An oil injection hole 362 is opened on the side of the surface of the flat strip tube 361. A one-way valve 363 is installed at the bottom of the surface of the flat strip tube 361. By rotating the connecting shaft 41, the rolling roller 46 can be driven to rotate circumferentially. The rolling roller 46 and the... When the flat strip tube 361 comes into contact with the roller 46, it is rolled and pressed by the roller. After being rolled, under the action of pressure difference, the oil port at the bottom of the flat strip tube 361 draws lubricating oil from the oil reservoir 31. The oil circuit is controlled in one direction by the one-way valve 363, so that the lubricating oil is sprayed from the oil injection hole 362 to the conical wheel 34. The surface of the conical wheel 34 is covered with lubricating oil, which lubricates the surface and reduces 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 into the interior of the oil reservoir 31. The oil spray holes 362 are evenly distributed on both sides of the surface of the flat strip tube 361. As the oil spray holes 362 spray oil onto the surface of the conical wheel 34, the conical wheel 34 is lubricated. Under the action of gravity, the lubricating oil flows downward 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 interior of the oil reservoir 31 for recycling and reuse.

[0036] When using it, first open the oil inlet 35, inject an appropriate amount of lubricating oil into the oil storage tank 31, and then seal the oil inlet 35. Furthermore, by using the annular fixing member 51 installed in the middle of the inner cavity of the engine compartment 1, and with the connection of the flow guiding plate 52, the positions of the stator core ring 53 and the stator winding 54 are fixed. By using the flow guiding plate 52 evenly distributed between the inner side of the annular fixing member 51 and the stator core ring 53, the support points for the stator core ring 53 can be increased, making the stator core ring 53 and the stator winding 54 more stable and secure. By installing wind turbine blades onto the blade hub 42, the wind blows on the wind turbine blades, and with the rotational support of the base 2 on the connecting shaft 41, the connecting shaft 41 is driven to rotate by the wind turbine blades. Through the connection of the rotor yoke 43, the rotor permanent magnet pole 44 is driven to rotate together. When the rotor permanent magnet pole 44 rotates, it cuts the magnetic field formed around the stator core ring 53 and the stator winding 54, generating an induced electromotive force and forming alternating current, thus generating electricity. At the same time, as the connecting shaft 41 drives the rotor yoke 43 to rotate, the fan blades 45 will rotate together with the rotor yoke 43. In addition, the fan blades 45 are installed at an angle, so the fan blades 45 can be used to fan the air around the rotor permanent magnet pole 44 by rotating in a circle, accelerating the air flow, which helps to carry away heat through the airflow and achieve the effect of heat dissipation. The rotor permanent magnet pole 44 is not prone to high temperature burnout. Furthermore, by evenly distributing the flow guide plates 52 on the surface of the stator core ring 53, the flow guide plates 52 can conduct heat to the stator core ring 53 through the principle of heat transfer, thus dissipating the heat. As the fan blades 45 rotate in a circular motion, they fan the air in the engine compartment 1, causing the airflow to enter between two adjacent flow guide plates 52. With the fan blades 45 continuously rotating, the air is blown and, combined with the two adjacent flow guide plates 52 forming a V-shape, the diameter of the gas outlet is smaller than that of the inlet, thus increasing the gas flow speed. Furthermore, the connecting shaft 41 is supported by the oil 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, which can position the connecting shaft 41. The conical surface of the conical wheel 34 fits against the outer circular surface of the connecting shaft 41. As the connecting shaft 41 rotates, the conical wheel 34 provides rolling support for the connecting shaft 41. Through rolling friction, the friction is reduced, making the connecting shaft 41 rotate smoothly. The rotation of the connecting shaft 41 drives the rolling roller 46 to rotate in a circle. By contacting the flat strip tube 361 with the rolling roller 46, the flat strip tube 361 is rolled and pressed by the rolling roller 46. After being rolled, the flat strip tube 361 draws lubricating oil from the oil reservoir 31 under the action of pressure difference. The oil circuit is controlled in one direction by the one-way valve 363, so that the lubricating oil is sprayed from the oil injection hole 362 to the conical wheel 34. The surface of the conical wheel 34 is covered with lubricating oil for lubrication, reducing the wear between the conical wheel 34 and the connecting shaft 41. As oil is sprayed onto the surface of the conical wheel 34 through the oil injection hole 362, the conical wheel 34 is lubricated. Under the action of gravity, the lubricating oil flows downward and is collected by the first shaft cover 32, causing the lubricating oil to gather at the bottom of the first shaft cover 32 and flow 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" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

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

Claims

1. A horizontal-axis permanent magnet direct-drive wind turbine generator, characterized in that, include: The cabin (1) and the base (2) installed on the side of the inner cavity of the cabin (1), the bottom of the inner cavity of the cabin (1) is equipped with a support mechanism (3), and the middle of the inner wall of the cabin (1) is equipped with a stator mechanism (5). 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). The rotor mechanism (4) includes a connecting shaft (41), the outer circular 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 near the base (2). The middle of the outer circular 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 pole (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 circular surface of the connecting shaft (41) is rolled by a frame and a rolling roller (46) is rolled on the side of the outer circular surface of the connecting shaft (41). The stator mechanism (5) includes an annular fixing member (51). The surface of the annular fixing member (51) is fixedly installed in the middle of the inner wall of the cabin (1) by a T-shaped member. A flow guide connecting plate (52) is fixedly connected to the inner side of the annular fixing member (51). A stator core ring (53) is fixedly connected to the end of the flow guide connecting plate (52) away from the inner side of the annular fixing member (51). A stator winding (54) is fixedly installed on the inner side of the stator core ring (53). The stator winding (54) is sleeved on the surface of the rotor permanent magnet pole (44). The support mechanism (3) includes an oil tank (31), a first shaft cover (32), and a second shaft cover (33). The bottom of the oil tank (31) is fixedly installed to the bottom of the engine compartment (1) cavity by screws. The bottom of the first shaft cover (32) is fixedly installed to the middle of the top of the oil tank (31) by screws. The bottom of the second shaft cover (33) is fixedly installed to the top of the first shaft cover (32) by screws. The connecting shaft (41) is connected from the center of the first shaft cover (32) to the second shaft cover (33). The center of the cover (33) passes through, and conical wheels (34) are rolled 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). The conical surface of the conical wheel (34) is in contact with the outer circular 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). An oil spraying 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). The oil spraying lubrication assembly (36) includes a flat strip tube (361). The surface of the flat strip 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 strip tube (361) passes around the surface of the rolling roller (46). An oil spray hole (362) is opened on the side of the surface of the flat strip tube (361). A one-way valve (363) is installed at the bottom of the surface of the flat strip tube (361).

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

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

4. A horizontal-axis permanent magnet direct-drive wind turbine generator according to claim 1, characterized in that: The flow guiding connecting plates (52) are evenly distributed on the inner side of the annular fixing member (51), and two adjacent flow guiding connecting plates (52) form a V shape.

5. A horizontal-axis permanent magnet direct-drive wind turbine generator according to claim 1, characterized in that: The annular fixing member (51), stator core ring (53), stator winding (54) and rotor permanent magnet pole (44) are concentric circles.

6. A horizontal-axis permanent magnet direct-drive wind turbine generator according to claim 1, characterized in that: The bottom of the first shaft cover (32) is connected to the top of the oil tank (31). The first shaft cover (32) and the second shaft cover (33) are sealed together. The second shaft cover (33) is installed directly above the first shaft cover (32). 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).

7. A horizontal-axis permanent magnet direct-drive wind turbine generator according to claim 1, characterized in that: The oil port at the bottom of the flat strip tube (361) extends into the interior of the oil reservoir (31), and the oil injection holes (362) are evenly distributed on opposite sides of the surface of the flat strip tube (361).

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