A wind turbine generator that is easy to maintain

Abstract

The present invention discloses a wind turbine generator which is easy to maintain, comprising a generator, a wind turbine rotor and fan rotor blades, wherein a wind turbine rotor is arranged on one side of the generator, fan rotor blades are arranged on the wind turbine rotor, a primary dust cleaning mechanism is arranged on the fan rotor blades, a driving mechanism is arranged on the wind turbine rotor, and the driving mechanism is rotatably connected with the primary dust cleaning mechanism; when the fan rotor blades are driven by wind to rotate the wind turbine rotor, the wind turbine rotor can push the driving mechanism, thereby causing the primary dust cleaning mechanism to reciprocate up and down along the direction of the fan rotor blades; in this process, the primary dust cleaning mechanism can effectively and stably remove the accumulated dust on the surface of the fan rotor blades without adding additional counterweights; this design also does not need to worry about the problem of the primary dust cleaning mechanism being offset under the action of the centrifugal force of the fan rotor blades.

Description

Technical Field

[0001] The present application relates to the technical field of wind turbines, and in particular to a wind turbine that is easy to maintain. Background Art

[0002] A wind turbine is a device that uses wind energy to generate electricity. It is usually installed on high ground or coastline so that it can capture enough wind energy to rotate the blades of the generator. When the wind blows over the blades of the generator, the blades will rotate, which will drive the generator rotor inside the generator. The rotor generates current through the relative movement between the magnetic field and the coil, thereby generating electricity. However, the dust accumulation problem of wind turbine blades is an important factor affecting the performance of the generator. When dust, dirt and other contaminants accumulate on the surface of the blades, these substances can reduce the wind dynamics of the blades, thereby reducing the power generation capacity of the wind turbine. Uneven dust distribution may also cause blade imbalance, causing vibration and noise, which may cause damage to the wind turbine structure.

[0003] Chinese utility model CN212744203U discloses a fan blade device for adjusting a wind turbine. The device comprises a pillar, a rotating disk is provided on the upper outer surface of the pillar, a blade is mounted on the annular outer surface of the rotating disk, a sliding groove is provided on the front outer surface of the blade, the outer surface of the blade is slidably connected to a slide rod, a rectangular groove is provided on the lower outer surface of the slide rod, and a cleaning brush is provided inside the rectangular groove. The slide rod is a U-shaped structure, and its lower outer surface is firmly connected to a linear reciprocating motion block. The function of the device is to clean the blade surface when the blade of the wind turbine rotates, thereby improving the use efficiency of the device. However, this design has the following problems: when the counterweight of the cleaning brush is too light, the cleaning brush may be thrown at one end of the fan rotor blade due to the centrifugal force generated by the rotation of the fan rotor blade. If the counterweight of the cleaning brush is too heavy, the cleaning brush may collide with the fan rotor blade, thereby damaging the fan rotor blade. Summary of the invention

[0004] The purpose of the present invention is to provide a wind turbine generator which is easy to maintain in view of the deficiencies in the prior art.

[0005] The present application provides a wind turbine generator that is easy to maintain, comprising a generator, a wind turbine rotor and a wind turbine rotor blade, wherein a wind turbine rotor is provided on one side of the generator, and a wind turbine rotor blade is provided on the wind turbine rotor;

[0006] The fan rotor blades are provided with a primary dust cleaning mechanism, the wind power generation rotor is provided with a driving mechanism, and the driving mechanism is rotatably connected to the primary dust cleaning mechanism;

[0007] When working, the driving mechanism is driven by the wind power generation rotor, thereby driving the primary dust cleaning mechanism to reciprocate up and down along the direction of the fan rotor blades;

[0008] Wherein, the driving mechanism includes: a fixed support member and a helical gear transmission ring, a fixed support member is fixedly installed on a side of the wind turbine rotor close to the generator, a helical gear transmission ring is fixedly installed on a side of the generator close to the wind turbine rotor, the lower end of the fixed support member is rotatably connected with a conical transmission tooth, the outer wall of the conical transmission tooth is meshed with the outer wall of the helical gear transmission ring, the upper end of the conical transmission tooth is fixedly connected with a linear reciprocating transmission rod, the linear reciprocating transmission rod is rotatably passed through the fixed support member, the linear reciprocating transmission rod is arranged parallel to the centerline direction of the fan rotor blade, and the length of the linear reciprocating transmission rod is less than or equal to the length of the fan rotor blade, the outer wall of the linear reciprocating transmission rod is sleeved with a linear reciprocating motion block, a motion range limiting ring is fixedly installed on one side of the linear reciprocating motion block, and the first-level dust cleaning mechanism is rotatably connected in the motion range limiting ring.

[0009] Preferably, the first-level cleaning mechanism includes a blade cleaning groove rotatably connected to the motion range limiting ring, the blade cleaning groove is rectangular in shape, and an elastic element I is relatively fixedly installed inside the longer side of the blade cleaning groove, and a pushing mechanism plate is also relatively fixedly installed on the other end of the elastic element I. The pushing mechanism plate can be slidably arranged inside the blade cleaning groove, and a blade cleaning device is fixedly installed on one side of the pushing mechanism plate close to the fan rotor blades, and the fan rotor blades pass through the blade cleaning groove and are pressed and connected between the blade cleaning devices.

[0010] Preferably, an elastic element II is relatively fixedly installed inside the shorter side of the blade cleaning channel, and a dirt scraper plate is also relatively fixedly installed on the other end of the elastic element II. The dirt scraper plate is pressed and connected with the side outer wall of the fan rotor blade.

[0011] Preferably, it also includes a secondary cleaning mechanism, which includes an external protective shell, which is installed at the upper end of the blade cleaning channel, and a pneumatic drive chamber is fixedly installed on the side of the internal part of the external protective shell away from the fan rotor blades, and a pneumatic pressure regulating plate is fixedly installed on the side of the pneumatic drive chamber close to the fan rotor blades, and the pneumatic pressure regulating plate is slidably connected to the inside of the external protective shell, and an elastic element III is fixedly installed on the side of the pneumatic pressure regulating plate close to the fan rotor blades, and a direction guide tube is fixedly connected to the outside of the external protective shell on the side close to the fan rotor blades, and the direction guide tube is connected to the external protective shell, and a gas flow pipe is inserted into the inside of the direction guide pipe, and one end of the gas flow pipe is connected to the pneumatic drive chamber in the external protective shell, and the gas The gas circulation conduit extends to one end of the direction guide tube away from the external protective shell when inflated, and retracts to one end of the direction guide tube close to the external protective shell when deflated. A sliding mechanism element is provided at one end of the gas circulation conduit, and the sliding mechanism element is slidably connected to the inside of the direction guide tube. A secondary dust removal block is slidably connected to the lower end of the sliding mechanism element, and the secondary dust removal block is press-connected to the upper end surface of the blade cleaning device. The other end of the gas circulation conduit is connected to the pneumatic drive chamber. The gas circulation conduit can extend to one end of the direction guide tube away from the external protective shell when inflated, and retract to one end of the direction guide tube close to the external protective shell when deflated. The dirt scraper plate is arranged in an L shape, and one end of the dirt scraper plate passes through the external protective shell and is press-connected to the pneumatic pressure regulating plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the existing technical solutions, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 This is a schematic diagram of a three-dimensional structure of a wind turbine generator that is easy to maintain provided by an embodiment of the present application;

[0014] Figure 2 This is an enlarged view of the structure of part A of a wind turbine that is easy to maintain provided by an embodiment of the present application;

[0015] Figure 3 This is a schematic diagram of a three-dimensional structure of a dust cleaning mechanism of a wind turbine generator that is easy to maintain, provided in one embodiment of the present application;

[0016] Figure 4This is an enlarged view of the B-part structure of a wind turbine that is easy to maintain, provided in one embodiment of the present application.

[0017] The accompanying drawings are marked as follows: 1. generator; 2. wind direction regulator; 3. wind turbine rotor; 4. fan rotor blades; 5. fixed support member; 6. conical transmission teeth; 7. helical transmission ring; 8. linear reciprocating transmission rod; 9. linear reciprocating motion block; 10. motion range limiting ring; 11. blade cleaning groove; 12. elastic element I; 13. pushing mechanism plate; 14. blade cleaning device; 15. dirt scraper plate; 16. elastic element II; 17. external protective shell; 18. pneumatic drive chamber; 19. pneumatic pressure regulating plate; 20. elastic element III; 21. direction guide tube; 22. gas circulation pipeline; 23. sliding mechanism element; 24. secondary dust removal block. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-4 As shown in the figure, the present embodiment provides a wind turbine 1 that is easy to maintain, comprising:

[0020] A generator 1, a wind power rotor 3 and a fan rotor blade 4, wherein the wind power rotor 3 is provided on one side of the generator 1, the fan rotor blade 4 is provided on the wind power rotor 3, a primary dust cleaning mechanism is provided on the fan rotor blade 4, and a driving mechanism is provided on the wind power rotor 3, and the driving mechanism is rotatably connected to the primary dust cleaning mechanism;

[0021] Preferably, when working, the driving mechanism is driven by the wind power generation rotor 3, thereby driving the primary cleaning mechanism to reciprocate up and down along the direction of the fan rotor blades 4.

[0022] Furthermore, a wind direction regulator 2 is provided on a side of the generator 1 away from the wind power generation rotor 3 .

[0023] It is understandable that when the fan rotor blades 4 are driven by wind and drive the wind power generation rotor 3 to rotate, the wind power generation rotor 3 can push the driving mechanism, thereby causing the primary dust cleaning mechanism to reciprocate up and down along the direction of the fan rotor blades 4. In this process, the primary dust cleaning mechanism can effectively and stably remove the dust accumulated on the surface of the fan rotor blades 4 without adding additional counterweights. This design also does not need to worry about the problem of the primary dust cleaning mechanism being offset under the action of the centrifugal force of the fan rotor blades 4.

[0024] It should be noted that this embodiment does not limit the driving mechanism. No matter what structure and connection method are used, as long as the driving mechanism is driven by the wind turbine rotor 3 and then drives the primary dust cleaning mechanism to reciprocate up and down along the direction of the fan rotor blades 4, it should be within the protection scope of the present invention. Of course, a specific driving mechanism can be designed, as shown below:

[0025] Please read further Figure 2 The driving mechanism includes: a fixed support member 5 and a helical gear transmission ring 7, the fixed support member 5 is installed on the wind power generation rotor 3, the helical gear transmission ring 7 is arranged on the generator 1, the lower end of the fixed support member 5 is provided with a conical transmission tooth 6, the conical transmission tooth 6 is meshed with the helical gear transmission ring 7, the upper end of the helical gear transmission ring 7 is provided with a linear reciprocating transmission rod 8 passing through the fixed support member 5, the linear reciprocating transmission rod 8 is provided with a linear reciprocating motion block 9, the linear reciprocating motion block 9 is provided with a motion range limiting ring 10, and the first-level cleaning mechanism is rotatably connected in the motion range limiting ring 10.

[0026] Specifically, a fixed support member 5 is fixedly installed on the side of the wind turbine rotor 3 close to the generator 1, and a conical transmission tooth 6 is rotatably connected to the lower end of the fixed support member 5. A helical transmission ring 7 is fixedly installed on the side of the generator 1 close to the wind turbine rotor 3. The outer wall of the conical transmission tooth 6 is meshed with the outer wall of the helical transmission ring 7, and a linear reciprocating transmission rod 8 is fixedly connected to the upper end of the conical transmission tooth 6. The linear reciprocating transmission rod 8 rotatably penetrates the fixed support member 5, and the linear reciprocating transmission rod 8 is arranged parallel to the centerline direction of the wind turbine rotor blade 4, and the length of the linear reciprocating transmission rod 8 is less than or equal to the length of the wind turbine rotor blade 4. A linear reciprocating motion block 9 is sleeved on the outer wall of the linear reciprocating transmission rod 8, and a motion range limiting ring 10 is fixedly installed on one side of the linear reciprocating motion block 9.

[0027] When the fan rotor blade 4 is blown by the wind and starts to rotate, the conical transmission teeth 6 on the wind power rotor 3 rotate relative to the helical transmission ring 7 on the motor, so that the conical transmission teeth 6 start to rotate at the same time. The rotation of the conical transmission teeth 6 drives the rotation of the linear reciprocating transmission rod 8, and then drives the linear reciprocating motion block 9 to perform linear reciprocating motion on the outer wall of the linear reciprocating transmission rod 8. In this process, the linear reciprocating motion block 9 drives the motion range limiting ring 10 to perform linear reciprocating motion on the outer wall of the fan rotor blade 4, and finally makes the first-level cleaning mechanism slide along the outer wall of the fan rotor blade 4 to remove the dust attached to the outer surface of the fan rotor blade 4. In addition, the first-level cleaning mechanism is rotatably arranged in the motion range limiting ring 10, so that the first-level cleaning mechanism can not only adapt to fan rotor blades 4 of various specifications, but also can adjust the cleaning angle according to the shape of the fan rotor blade 4 during the up and down reciprocating cleaning process, so as to better fit and improve the cleaning efficiency.

[0028] Of course, a first-level dust removal mechanism can also be specifically designed, as shown below:

[0029] Please read further Figure 3 The primary cleaning mechanism includes a blade cleaning groove 11 rotatably connected to the motion range limiting ring 10, an elastic element Ⅰ12 is provided in the blade cleaning groove 11, a pushing mechanism plate 13 is provided at the other end of the elastic element Ⅰ12, a blade cleaning device 14 is provided on the pushing mechanism plate 13, and the fan rotor blade 4 passes through the blade cleaning groove 11 and is pressed and connected between the blade cleaning device 14.

[0030] Specifically, the motion range limiting ring 10 is rotatably connected to the inside of the blade cleaning groove 11, and the blade cleaning groove 11 is in a rectangular shape. An elastic element Ⅰ12 is relatively fixedly installed inside the longer side of the blade cleaning groove 11, and a pushing mechanism plate 13 is also relatively fixedly installed on the other end of the elastic element Ⅰ12. The pushing mechanism plate 13 is slidably arranged inside the blade cleaning groove 11, and a blade cleaning device 14 is fixedly installed on one side of the pushing mechanism plate 13 close to the fan rotor blade 4, and the blade cleaning device 14 is pressed and connected with the front and back outer walls of the fan rotor blade 4.

[0031] Since the wind turbine rotor blades 4 are subjected to different forces and torques at different positions, the wind turbine rotor blades 4 of the same wind turbine 1 usually have different thicknesses at different positions. If the blade cleaning device 14 cannot be adjusted to the correct distance, a gap will be generated, resulting in a poor cleaning effect. Therefore, when the motion range limiting ring 10 drives the blade cleaning channel 11 to perform linear reciprocating motion in the direction of the wind turbine rotor blade 4, the elastic element I12 will extend and push the pushing mechanism plate 13 to slide along the inner wall of the blade cleaning channel 11. This allows the pushing mechanism plate 13 to continuously fit the blade cleaning device 14 to the outer wall of the wind turbine rotor blade 4, effectively removing the dust accumulated on the wind turbine rotor blade 4. This design can be adjusted according to the thickness of the wind turbine rotor blade 4 to prevent the blade cleaning device 14 from being unable to effectively clean the dust on the wind turbine rotor blade 4 due to changes in the thickness of the wind turbine rotor blade 4.

[0032] Furthermore, an elastic element II 16 is provided in the blade cleaning channel 11 , and a dirt scraping plate 15 is provided at the other end of the elastic element II 16 .

[0033] Specifically, an elastic element II 16 is relatively fixedly installed inside a shorter side of the blade cleaning groove 11, and a dirt scraper plate 15 is also relatively fixedly installed on the other end of the elastic element II 16. The dirt scraper plate 15 is pressed and connected to the side outer wall of the fan rotor blade 4.

[0034] Similarly, the width of the fan rotor blade 4 of the same wind turbine 1 is usually different at different positions. If the blade cleaning device 14 cannot be adjusted to the correct distance, a gap will be generated, resulting in a poor cleaning effect. Therefore, when the motion range limiting ring 10 drives the blade cleaning channel 11 to perform linear reciprocating motion along the direction of the fan rotor blade 4, the elastic element II 16 inside the blade cleaning channel 11 will push the dirt scraping plate 15 to fit the side of the fan rotor blade 4, effectively cleaning the dust on the side of the fan rotor blade 4.

[0035] It should be noted that the dust dropped from the fan rotor blades 4 by the blade cleaning device 14 will also slowly accumulate on the outer wall of the blade cleaning device 14, which will affect the cleaning efficiency and the life of the accessories in the long run. Therefore, a two-level dust cleaning mechanism can also be specifically designed, as shown below:

[0036] Please also read Figure 4, and also includes a secondary dust cleaning mechanism, which includes an external protective shell 17, which is installed at the upper end of the blade cleaning channel 11, and a pneumatic drive chamber 18 is provided inside the external protective shell 17, and a pneumatic pressure regulating plate 19 is provided on one side of the pneumatic drive chamber 18, and an elastic element III 20 is provided on one side of the pneumatic pressure regulating plate 19, and a direction guide tube 21 is provided outside the external protective shell 17, and a gas circulation pipeline 22 is provided inside the direction guide tube 21, and a sliding mechanism element 23 is provided at one end of the gas circulation pipeline 22, and a secondary dust removal block 24 is provided at the lower end of the sliding mechanism element 23, and the secondary dust removal block 24 is pressed and connected with the upper end surface of the blade cleaning device 14, and the other end of the gas circulation pipeline 22 is communicated with the pneumatic drive chamber 18, and the dirt scraping plate 15 is L-shaped, and one end of the dirt scraping plate 15 passes through the external protective shell 17 and is pressed and connected with the pneumatic pressure regulating plate 19.

[0037] Specifically, an outer protective shell 17 is fixedly installed on the upper end of the blade cleaning groove 11, and a pneumatic drive chamber 18 is fixedly installed on the side of the inner part of the outer protective shell 17 away from the fan rotor blade 4. A pneumatic pressure regulating plate 19 is fixedly installed on the side of the pneumatic drive chamber 18 close to the fan rotor blade 4. The pneumatic pressure regulating plate 19 is slidably connected to the inner part of the outer protective shell 17, and an elastic element III 20 is fixedly installed on the side of the pneumatic pressure regulating plate 19 close to the fan rotor blade 4. The elastic element III 20 is fixedly installed on the pneumatic pressure regulating plate 19 and The outer protective shell 17 is provided between the outer protective shell 17, and a direction guide tube 21 is fixedly connected to one side of the outer protective shell 17 near the fan rotor blade 4. The direction guide tube 21 is connected to the outer protective shell 17, and the direction guide tube 21 is arranged in parallel above the blade cleaning device 14. A gas flow pipe 22 is inserted into the direction guide tube 21, and one end of the gas flow pipe 22 is connected to the pneumatic drive chamber 18 in the outer protective shell 17. The gas flow pipe 22 can be extended to the end of the direction guide tube 21 away from the outer protective shell 17 when inflated, and when deflated, The end of the gas flow pipe 22 retracts to the direction guide tube 21 close to the outer protective shell 17, and the end of the gas flow pipe 22 away from the outer protective shell 17 is fixedly installed with a sliding mechanism element 23, which is slidably connected to the inside of the direction guide tube 21. The lower end of the sliding mechanism element 23 is slidably connected to the secondary dust removal block 24. One end of the L-shaped dirt scraper plate 15 penetrates into the inside of the outer protective shell 17 and is pressed and contacted with the pneumatic pressure regulating plate 19. When the dirt scraper plate 15 is in a wider position of the fan rotor blade 4, the dirt scraper plate 15 is away from the fan rotor blade When the dirt scraping plate 15 is at the center position of the fan blade 4 and is squeezed, the pneumatic pressure regulating plate 19 is also squeezed. At this time, the elastic element II 16 is in a compressed state, and the elastic element III 20 is in a stretched state. When the dirt scraping plate 15 is at a narrow position of the fan rotor blade 44, the dirt scraping plate 15 is pushed toward the fan rotor blade 44 by the elastic element II 16. In this process, the squeezing force of the dirt scraping plate 15 on the pneumatic pressure regulating plate 19 gradually decreases. At the same time, the elastic element III 20 retracts and drives the pneumatic pressure regulating plate 19 to move toward the fan rotor blade 44. Preferably, during the entire reciprocating motion, the elastic element II 16 can be stretched or compressed, but the whole is always in a compressed state.

[0038] It is understandable that when the fan rotor blade 44 is driven by the wind and starts to rotate, the conical transmission teeth 6 on the wind turbine rotor 3 rotate relative to the helical transmission ring 7 on the motor, so that the conical transmission teeth 6 start to rotate at the same time. The rotation of the conical transmission teeth 6 drives the rotation of the linear reciprocating transmission rod 8, and then drives the linear reciprocating motion block 9 to perform linear reciprocating motion on the outer wall of the linear reciprocating transmission rod 8. In this process, the linear reciprocating motion block 9 drives the motion range limiting ring 10 to perform linear reciprocating motion on the outer wall of the fan rotor blade 44, and finally makes the blade cleaning groove 11 slide along the outer wall of the fan rotor blade 44. At the same time, the blade cleaning groove 11 can slide in the motion range limiting ring 10 to adjust the angle to adapt to the irregular aerodynamic shape of the fan rotor blade 44.

[0039] When the blade cleaning channel 11 moves with the motion range limiting ring 10 to the end of the fan rotor blade 44 away from the wind turbine rotor 3, the width of the fan rotor blade 44 gradually narrows. In this process, the elastic element II 16 inside the blade cleaning channel 11 will push the dirt scraper plate 15 to fit the side of the fan rotor blade 44. At the same time, the squeezing force of the dirt scraper plate 15 on the pneumatic pressure regulating plate 19 will gradually decrease. This further causes the elastic element III 20 to retract, pulling the pneumatic pressure regulating plate 19 back to its original position. The reset movement of the pneumatic pressure regulating plate 19 will affect the pneumatic drive chamber 18. Once the pneumatic drive chamber 18 is affected, it will expand and draw out the gas in the gas circulation pipe 22. This will cause the gas circulation pipe 22 to contract, driving the sliding mechanism element 23 to slide inside the gas circulation pipe 22. The sliding of the sliding mechanism element 23 eventually causes the secondary dust removal block 24 to slide along the outer wall of the blade cleaning device 14, and scrapes the dust accumulated on the blade cleaning device 14 off the fan rotor blades 44. This process helps prevent dust from accumulating on the outer wall of the blade cleaning device 14, so as to ensure that after long-term use, the blade cleaning device 14 can still effectively clean the dust on the fan rotor blades 44 and maintain the performance of the wind turbine 1.

[0040] When the blade cleaning channel 11 gradually returns to the wider part of the fan rotor blade 44, the side of the fan rotor blade 44 will gradually push the dirt scraper plate 15. This makes the dirt scraper plate 15 further compress the elastic element II 16 and push the pneumatic pressure regulating plate 19 to move toward the pneumatic drive chamber 18. At the same time, the pneumatic pressure regulating plate 19 drives the elastic element III 20 to stretch and discharges the gas in the pneumatic drive chamber 18 into the interior of the gas circulation pipe 22. The gas circulation pipe 22 is therefore inflated and elongated, pushing the sliding mechanism element 23 to slide along the inner wall of the guide tube 21. The sliding mechanism element 23 drives the secondary dust removal block 24 again to remove the dust on the blade cleaning device 14, and then returns to its original position to prepare for the next round of cleaning operations. This cycle ensures that the blade cleaning device 14 can still effectively clean the dust on the fan after long-term use and maintain the performance of the wind turbine 1.

Claims

1. A wind turbine generator that is easy to maintain, comprising: A generator (1), a wind power generation rotor (3) and a wind turbine rotor blade (4), wherein the wind power generation rotor (3) is provided on one side of the generator (1), and the wind turbine rotor blade (4) is provided on the wind power generation rotor (3), and the characteristics are: The fan rotor blade (4) is provided with a primary dust cleaning mechanism, the wind power generation rotor (3) is provided with a driving mechanism, and the driving mechanism is rotatably connected to the primary dust cleaning mechanism; When in operation, the driving mechanism is driven by the wind power generation rotor (3), thereby driving the primary dust cleaning mechanism to perform reciprocating motion along the centerline direction of the fan rotor blades (4); The driving mechanism comprises: a fixed support member (5) and a helical gear transmission ring (7); the fixed support member (5) is fixedly mounted on a side of the wind power generation rotor (3) close to the generator (1); the helical gear transmission ring (7) is fixedly mounted on a side of the generator (1) close to the wind power generation rotor (3); the lower end of the fixed support member (5) is rotatably connected to a conical gear transmission tooth (6); the outer wall of the conical gear transmission tooth (6) is meshed with the outer wall of the helical gear transmission ring (7); the upper end of the conical gear transmission tooth (6) is fixedly connected to a linear reciprocating gear transmission ring (7); A moving rod (8), the linear reciprocating transmission rod (8) rotatably penetrates the fixed support member (5), the linear reciprocating transmission rod (8) is arranged parallel to the centerline direction of the fan rotor blade (4), and the length of the linear reciprocating transmission rod (8) is less than or equal to the length of the fan rotor blade (4), the outer wall of the linear reciprocating transmission rod (8) is sleeved with a linear reciprocating motion block (9), a motion range limiting ring (10) is fixedly installed on one side of the linear reciprocating motion block (9), and the first-level dust cleaning mechanism is rotatably connected inside the motion range limiting ring (10); The primary dust cleaning mechanism comprises a blade cleaning groove (11) rotatably connected to the motion range limiting ring (10), the blade cleaning groove (11) being in a rectangular shape, an elastic element I (12) being fixedly mounted relatively to the longer side of the blade cleaning groove (11), a push mechanism plate (13) being fixedly mounted relatively to the other end of the elastic element I (12), the push mechanism plate (13) being slidably arranged inside the blade cleaning groove (11), and a blade cleaning device (14) being fixedly mounted on one side of the push mechanism plate (13) close to the fan rotor blade (4); An elastic element II (16) is fixedly mounted opposite to the shorter side of the blade cleaning channel (11), and a dirt scraping plate (15) is fixedly mounted opposite to the other end of the elastic element II (16); The secondary dust cleaning mechanism also includes an external protective shell (17), the external protective shell (17) is mounted on the upper end of the blade cleaning channel (11), a pneumatic drive chamber (18) is fixedly mounted on the side of the internal part of the external protective shell (17) away from the fan rotor blade (4), a pneumatic pressure regulating plate (19) is fixedly mounted on the side of the pneumatic drive chamber (18) close to the fan rotor blade (4), and the pneumatic pressure regulating plate (19) is slidably connected to the inside of the external protective shell (17). An elastic element III (20) is fixedly mounted on one side of the pneumatic pressure regulating plate (19) close to the fan rotor blade (4), and a direction guide tube (21) is fixedly connected to one side of the outer protective shell (17) close to the fan rotor blade (4). The direction guide tube (21) is in communication with the outer protective shell (17), and a gas flow pipe (22) is inserted into the interior of the direction guide tube (21). One end of the gas flow pipe (22) is in communication with the pneumatic drive chamber (18) in the outer protective shell (17). The gas flow pipe (22) extends to an end of the direction guide pipe (21) away from the outer protective shell (17) when inflated, and retracts to an end of the direction guide pipe (21) close to the outer protective shell (17) when deflated. A sliding mechanism element (23) is provided at one end of the gas flow pipe (22). The sliding mechanism element (23) is slidably connected to the inside of the direction guide pipe (21). A secondary dust removal block (24) is slidably connected to the lower end of the sliding mechanism element (23). The secondary dust removal block (24) is connected to the blade cleaning device (14). The other end of the gas circulation conduit (22) is connected to the pneumatic drive chamber (18); the gas circulation conduit (22) can be extended to an end of the direction guide tube (21) away from the external protective shell (17) when inflated, and retracted to an end of the direction guide tube (21) close to the external protective shell (17) when deflated; the dirt scraper plate (15) is arranged in an L shape, and one end of the dirt scraper plate (15) passes through the external protective shell (17) and is pressed and connected to the pneumatic pressure regulating plate (19).

2. The wind turbine generator easy to maintain according to claim 1, characterized in that: The fan rotor blades (4) pass through the blade cleaning channels (11) and are pressed and connected between the blade cleaning devices (14).

3. The wind turbine generator easy to maintain according to claim 2, characterized in that: The dirt scraping plate (15) is pressed and connected to the side outer wall of the fan rotor blade (4).

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