Polishing device of cabin cover for wind driven generator

Abstract

The invention discloses a polishing device of a cabin cover for a wind driven generator, and belongs to the technical field of wind driven generator manufacturing, the polishing device comprises a body, a motor is fixedly arranged on the upper end face of the body, a friction plate is arranged below the body, and an output shaft of the motor penetrates through the body and is coaxially and fixedly arranged with the friction plate; a pumping device is arranged in the body, an output shaft of the motor drives the friction piece to rotate and drives the pumping device to rotate at the same time, a filtering device is arranged on the body, and the suction end of the pumping device is communicated with the peripheral space of the friction piece. When the device is used, the output shaft of the motor drives the friction plate to rotate and also drives the pumping device to rotate, so that the pumping device sucks air around the friction plate and then discharges the air to the filtering device, glass fiber reinforced plastic fibers in the air are retained in the filtering device, clean air is discharged, and the problem that in the using process, the friction plate is damaged is effectively solved. And glass fiber reinforced plastic fibers contained in the air are breathed into an airway by people, so that the human body is injured.

Description

Technical Field

[0001] This invention relates to a polishing apparatus, and more particularly to a polishing apparatus for a nacelle cover for a wind turbine. Background Technology

[0002] The wind turbine nacelle is a key protective shell for wind turbine generators. It is made of composite materials such as fiberglass reinforced plastic and is mainly used in the protection of megawatt-class wind turbine generators. This component consists of a bottom cover, a top cover, ventilation openings, support plates, and other parts. It is installed on the main frame and the top of the tower and can withstand environmental corrosion from wind, rain, snow, salt spray, and ultraviolet radiation.

[0003] Fiberglass aircraft naval covers are large products, and common molding processes include hand lay-up molding and vacuum bag molding. After molding, the outer surface of the naval cover needs to be polished. Currently, the polishing equipment is operated by a worker holding a lever to start a motor, which drives a friction plate to rotate. The friction plate polishes the outer surface of the naval cover, and then the worker moves the lever to polish a large area of ​​the outer surface. This method of operation is physically demanding for workers, and a large amount of fiberglass fiber debris is released into the air. Inhaling this fiberglass can cause serious health problems. Summary of the Invention

[0004] The purpose of this invention is to provide a polishing device for a wind turbine nacelle cover, which has the function of collecting fiberglass fibers in the air during polishing, effectively solving the problem that the inhalation of fiberglass fibers during operation can cause serious harm to the human body in the prior art.

[0005] The present invention adopts the following technical solution: a polishing device for a nacelle cover of a wind turbine generator, comprising a body, a motor fixedly mounted on the upper end face of the body, a friction plate mounted below the body, the output shaft of the motor passing through the body and fixedly mounted coaxially with the friction plate; a pumping device is mounted inside the body, the output shaft of the motor simultaneously drives the friction plate and the pumping device to rotate, a filter device is mounted on the body, the suction end of the pumping device is connected to the outer space of the friction plate, and the discharge end of the pumping device is connected to the filter device.

[0006] Furthermore, the body has a accommodating cavity vertically oriented inside. The pumping device includes a pump cylinder fixedly mounted inside the accommodating cavity of the body and the output shaft of the motor, and a tray rotatably connected to the body inside the accommodating cavity of the body. A swashplate is rotatably connected to the lower end face of the tray. Several plungers are evenly arranged on the lower end face of the swashplate. Several through holes are opened on the upper end face of the pump cylinder. Each plunger is inserted into the corresponding through hole of the pump cylinder. Two collecting chambers are opened on the inner bottom wall of the accommodating cavity of the body. The left one is the suction chamber and the right one is the discharge chamber. The discharge chamber is connected to the filter device.

[0007] Furthermore, the tray is also equipped with an angle adjustment device, which adjusts the inclination of the tray relative to the horizontal plane according to the rotational speed of the pump cylinder.

[0008] Furthermore, the angle adjustment device includes a tension spring located on the right side of the tray and always in a stretched state, with the bottom and top ends of the tension spring fixed to the body and the right end of the tray, respectively.

[0009] Furthermore, the angle adjustment device also includes a blocking device installed on the output shaft of the motor. The bottom end of the blocking device is always in contact with the upper surface of the tray, and the blocking force of the blocking device is balanced with the force of the tension spring. A centrifugal device is installed on the blocking device.

[0010] Furthermore, the aforementioned blocking device includes a fixed disk fixedly mounted to the output shaft of the motor and a sliding disk slidably mounted on the output shaft of the motor in the vertical direction. A blocking spring is fixedly mounted between the fixed disk and the sliding disk. The blocking spring pushes the sliding disk to move downward and abut against the upper end surface of the tray, forming a blocking force that prevents the tray from rotating. The blocking force of the blocking spring is balanced with the tensile force of the tension spring.

[0011] Furthermore, the centrifuge device includes two hinged links, with the upper link hinged to the fixed disk and the lower link hinged to the sliding disk; the hinged links form a group, and the fixed disk and the sliding disk are provided with a plurality of even groups of hinged links.

[0012] Furthermore, the tray 7 has a rotating groove inside, through which the motor's output shaft passes; the swashplate has an avoidance hole inside, through which the motor's output shaft passes.

[0013] Furthermore, a ball is fixedly provided at the top of the plunger, and several spherical chambers corresponding to the balls are evenly opened on the lower end face of the swashplate. Each ball is located in the corresponding spherical chamber, and the ball can rotate arbitrarily within the spherical chamber without leaving it.

[0014] Furthermore, the bottom wall of the suction chamber of the main body is provided with a suction hole, the bottom end of which is located inside the collection hood; the bottom wall of the discharge chamber of the main body is provided with a discharge channel, which is connected to the filter device.

[0015] I. This invention, by setting up a motor, friction plate, pumping device, and filtering device, allows the motor's output shaft to drive the friction plate to rotate while simultaneously driving the pumping device to rotate during use. This causes the pumping device to draw in the air around the friction plate and then discharge it to the filtering device, resulting in the fiberglass in the air being trapped inside the filtering device and clean air being discharged. This effectively solves the problem of fiberglass in the air being inhaled into the airway and causing harm to the human body during use.

[0016] II. This invention, by setting up a pump cylinder, plungers, and a swashplate, allows the motor's output shaft to drive both the friction plates and the pump cylinder during operation. The pump cylinder's rotation, in turn, drives the swashplate via several plungers. Since the swashplate is tilted, each plunger reciprocates within its corresponding through-hole during rotation. When rotating to the left, the plunger moves a greater distance upward relative to the pump cylinder, increasing the volume of the corresponding through-hole and creating negative pressure. This negative pressure draws air from around the friction plates through the suction chamber. When rotating to the right, the plunger moves a shorter distance upward relative to the pump cylinder, decreasing the volume of the corresponding through-hole. The air in the through-hole is compressed and discharged from the discharge chamber to the filter, where it is filtered and purified. This process separates the fiberglass fibers contained in the air, allowing the clean air to be released into the working environment, effectively improving air quality and reducing harm to the human body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the friction plate in this invention; Figure 3 This is a schematic diagram of the internal three-dimensional structure of the main body in this invention; Figure 4 This is a schematic diagram of the internal structure of the main body in this invention; Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A in the diagram; Figure 6 This is a schematic diagram of the internal three-dimensional structure of the box in this invention; Figure 7 This is a schematic diagram of the internal three-dimensional structure of the tray in this invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the contact disc in this invention; Figure 9 This is a schematic diagram of the internal three-dimensional structure of the pump cylinder in this invention; Figure 10 For the present invention Figure 9 Enlarged schematic diagram of the structure at point B in the diagram; Figure 11 This is a schematic diagram of the three-dimensional structure of the plunger in this invention; Figure 12 This is a schematic diagram of the three-dimensional structure of the collection hood in this invention; Figure 13 For the present invention Figure 11 A magnified schematic diagram of the structure at point C.

[0018] In the diagram: 1. Main body; 2. Motor; 3. Friction plate; 4. Filter device; 5. Receptacle; 6. Pump cylinder; 7. Tray; 8. Swashplate; 9. Plunger; 10. Through hole; 11. Suction chamber; 12. Discharge chamber; 13. Motor output shaft; 14. Tension spring; 15. Fixed plate; 16. Sliding plate; 17. Restriction spring; 18. Connecting rod; 19. Contact plate; 20. Rotating groove; 21. Avoidance hole; 22. Ball; 23. Collection cover; 24. Upper rotating cylinder; 25. Lower rotating cylinder; 26. Guide rod; 27. Suction hole; 28. Discharge channel; 29. ​​Housing; 30. Mounting block; 31. Moving wheel; 32. Control lever. Detailed Implementation

[0019] Please see Figure 1-13 The present invention will now be described in detail with reference to the accompanying drawings and embodiments: The polishing device for a wind turbine nacelle cover of the present invention includes a body 1, a motor 2 fixedly mounted on the upper end face of the body 1, and a friction plate 3 mounted on the lower part of the body 1. The output shaft 13 of the motor passes through the body 1 and is coaxially fixed with the friction plate 3. In use, the motor 2 is started to drive the friction plate 3 to rotate, so that the friction plate 3 polishes the outer surface of the nacelle cover. A pumping device is installed inside the body 1. In use, the output shaft 13 of the motor drives the friction plate 3 to rotate while also driving the pumping device to rotate, so that the pumping device draws in the air around the friction plate 3 and delivers it to the filter device 4, so that the fiberglass in the air is trapped in the filter device 4 and the filtered air is discharged, effectively preventing the fiberglass in the air from causing harm to the human body.

[0020] In this embodiment, the body 1 has a vertically oriented accommodating cavity 5. The pumping device includes a pump cylinder 6 fixedly mounted inside the accommodating cavity 5 and fixedly mounted on the output shaft of the motor 2, and a tray 7 rotatably connected to the body 1 inside the accommodating cavity 5. A swashplate 8 is rotatably connected to the lower end face of the tray 7, and several plungers 9 are evenly arranged on the lower end face of the swashplate 8. Several through holes 10 are opened on the upper end face of the pump cylinder 6, and each plunger 9 is inserted into the corresponding through hole 10 of the pump cylinder 6. The inner bottom wall of the accommodating cavity 5 of the body 1 has two collecting chambers: the left one is the suction chamber 11, and the right one is the discharge chamber 12. The discharge chamber 12 is connected to the filter device 4. An angle adjustment device is also provided on the tray 7. The angle adjustment device adjusts the inclination of the tray 7 relative to the horizontal plane according to the rotation speed of the pump cylinder 6. The greater the rotation speed of the pump cylinder 6, the greater the inclination of the tray 7 adjusted by the angle adjustment device. In use, the output shaft 1 of the motor... 3. While driving the friction plate 3 to rotate, it also drives the pump cylinder 6 to rotate. The rotation of the pump cylinder 6 drives the swashplate 8 to rotate through several plungers 9. The tray 7 is in an inclined state. Therefore, during rotation, each plunger 9 moves back and forth in the corresponding through hole 10. When the plunger 9 rotates to the left, the plunger 9 moves a longer distance upward relative to the pump cylinder 6, making the volume of the corresponding through hole 10 larger. A negative pressure is formed in the through hole 10, which draws in the air around the friction plate 3 through the suction chamber 11. When the plunger 9 rotates to the right, the plunger 9 moves a set distance downward relative to the pump cylinder 6, making the volume of the corresponding through hole 10 smaller. The air in the through hole 10 is squeezed out from the discharge chamber 12 to the filter device 4, so that the air is filtered and purified, and the fiberglass contained in the air is separated. Then the clean air is discharged into the working environment, effectively improving the air quality and reducing the harm to the human body.

[0021] In this embodiment, the angle adjustment device includes a tension spring 14 located on the right side. The bottom end of the tension spring 14 is fixedly installed with the body 1, and the top end of the tension spring 14 is fixedly installed with the right side of the tray 7. The tension spring 14 is in a stretched state. The angle adjustment device also includes a blocking device installed on the output shaft 13 of the motor. The bottom end of the blocking device is always in contact with the upper surface of the tray 7. The blocking force of the blocking device is balanced with the force of the tension spring 14. The tension spring 14 pulls down the right side of the tray 7, causing the left side of the tray 7 to rotate upward. The blocking force of the blocking device presses down against the left side of the tray 7 to prevent the tray 7 from rotating, so that the tray 7 is maintained at the set angle. The blocking device is also equipped with a centrifugal device. When the speed of the output shaft 13 of the motor increases (indicating that the speed of the friction plate 3 is high and more fiberglass debris is generated during polishing), the centrifugal device... As the centrifugal force of the device increases, it exerts an upward pull on the left side of the tray 7, thereby reducing the downward pressure of the blocking device on the left side of the tray 7, thus offsetting part of the blocking force. At this time, the tension spring 14 pulls the right side of the tray 7 downward, causing the left side of the tray 7 to rotate upward until the blocking force and the tension force of the tension spring 14 are balanced again. At this time, the tilt angle of the tray 7 increases, which in turn increases the tilt angle of the swashplate 8. The left plunger 9 can move upward to a higher position, while the right plunger 9 can move downward to a lower position. The stroke of the plunger 9 moving up and down in the through hole 10 increases, thereby increasing the suction capacity of the pump cylinder 6 of the pumping device per revolution. This achieves the purpose of automatically increasing the suction capacity of the pumping device when the output shaft 13 of the motor rotates faster and produces more fiberglass debris.

[0022] In this embodiment, the blocking device includes a fixed disk 15 fixedly disposed on the output shaft 13 of the motor and a sliding disk 16 slidably disposed on the output shaft 13 of the motor in the vertical direction. A blocking spring 17 is fixedly disposed between the fixed disk 15 and the sliding disk 16. The blocking spring 17 pushes the sliding disk 16 to move downward and abut against the upper end surface of the tray 7, forming a blocking force that prevents the tray 7 from rotating. The blocking force of the blocking spring 17 is balanced with the tension force of the tension spring 14.

[0023] In this embodiment, the centrifuge device includes two hinged links 18. The upper link 18 is hinged to the fixed disk 15, and the lower link 18 is hinged to the sliding disk 16. The two hinged links 18 form a group, and the fixed disk 15 and the sliding disk 16 are provided with a plurality of even groups of hinged links 18. In this embodiment, an even set of connecting rods is uniformly arranged between the fixed disk 15 and the sliding disk 16. Each set of connecting rods includes an upper connecting rod and a lower connecting rod. The adjacent ends of the upper and lower connecting rods are hinged to each other, and the distant ends of the upper and lower connecting rods are respectively hinged to the corresponding fixed disk 15 and sliding disk 16. In use, the output shaft 13 of the motor rotates, driving the fixed disk 15 to rotate. The fixed disk 15 and the sliding disk 16 drive the connecting rods 18 to rotate synchronously. Centrifugal force is generated at the hinge points of the connecting rods 18, causing them to move outward. The greater the rotational speed of the output shaft 13 of the motor, the greater the centrifugal force, and the greater the centrifugal force at the hinge points of the connecting rods 18. This allows the hinge joint of the connecting rod 18 to move outward a greater distance, which in turn allows the sliding disk 16 to move upward a greater distance. When the sliding disk 16 moves upward, the tension spring 14 pulls the tray 7 to rotate, so that the upper end face of the tray 7 is always in contact with the lower end face of the sliding disk 16 until the sliding disk 16 stops moving upward and the tray 7 remains at the new inclination. This achieves the purpose of increasing the speed of the motor output shaft 13, increasing the inclination of the tray 7, and thus increasing the inclination of the swashplate 8, thereby increasing the stroke of the plunger 9 in the through hole 10, and thus increasing the pumping capacity of the pumping device per revolution.

[0024] In this embodiment, a contact plate 19 is fixedly provided on the lower end surface of the sliding plate 16; in use, the lower end surface of the contact plate 19 abuts against the upper end surface of the tray 7.

[0025] In this embodiment, a rotating groove 20 is provided inside the tray 7, and the output shaft 13 of the motor passes through the rotating groove 20. When the tray 7 rotates and the angle of inclination changes, the swing of the tray 7 and the rotation of the output shaft 13 of the motor do not interfere with each other.

[0026] In this embodiment, the swash plate 8 has an avoidance hole 21 inside, and the output shaft 13 of the motor passes through the avoidance hole 21. When the swash plate 8 swings with the tray 7, the swing of the swash plate 8 and the rotation of the output shaft 13 of the motor do not interfere with each other.

[0027] In this embodiment, a ball 22 is fixedly provided at the top of the plunger 9, and a plurality of spherical chambers corresponding to the ball 22 are evenly opened on the lower end surface of the swashplate 8. Each ball 22 is located in the corresponding spherical chamber, and the ball 22 can rotate arbitrarily in the spherical chamber without leaving the spherical chamber.

[0028] In this embodiment, a collection cover 23 is fixedly provided at the bottom of the main body 1. The collection cover 23 partially surrounds the friction plate 3. When the friction plate 3 rotates, the lower end of the friction plate 3 polishes the outer surface of the cabin cover. Most of the debris generated is blocked by the collection cover 23, which facilitates the pumping device to collect the air inside the collection cover 23.

[0029] In order to increase the centrifugal force of the two hinged links 18 at the same rotational speed, in this embodiment, the mass of the adjacent end of the two hinged links 18 is greater than the mass of the distant end of the two hinged links 18; the mass of the adjacent end of the two hinged links 18 is increased, and the centrifugal force on the adjacent end of the two hinged links 18 at the same rotational speed is increased.

[0030] In this embodiment, an upper rotating cylinder 24 is rotatably connected to the right side of the tray 7, and a lower rotating cylinder 25 is rotatably connected to the inner bottom wall of the accommodating cavity 5 of the body 1. A guide rod 26 is fixedly installed on the outer surface of the lower rotating cylinder 25. The guide rod 26 passes through the upper rotating cylinder 24. The top end of the tension spring 14 is fixedly installed with the upper rotating cylinder 24, and the bottom end of the tension spring 14 is fixedly installed with the lower rotating cylinder 25. The tension spring 14 is sleeved on the guide rod 26. When the tension spring 14 pulls the tray 7 to rotate, the upper rotating cylinder 24 and the lower rotating cylinder 25 rotate, and the guide rod 26 slides in the upper rotating cylinder 24 to adapt to the rotation of the tray 7.

[0031] In this embodiment, the bottom wall of the suction chamber 11 of the main body 1 is provided with a suction hole 27, and the bottom end of the suction hole 27 is located inside the collection cover 23; the bottom wall of the discharge chamber 12 of the main body 1 is provided with a discharge channel 28, which is connected to the filter device 4; in use, the output shaft 13 of the motor rotates to drive the friction plate 3 to rotate, and at the same time drives the pump cylinder 6 to rotate. The friction plate 3 polishes the outer surface of the engine compartment cover, and the generated debris is gathered by the collection cover 23 and enters the suction hole 27 and then enters the suction chamber 11, and then enters the through hole 10 of the pump cylinder 6. As the pump cylinder 6 rotates, when the through hole 10 containing fiberglass debris rotates to the right, the plunger 9 moves downward to discharge the air containing fiberglass debris in the through hole 10 into the discharge channel 28 and enters the filter device 4 for filtration. The fiberglass in the air is retained in the filter device 4, and the clean air is discharged to the working environment, thereby achieving the purpose of improving the air quality in the working environment.

[0032] In this embodiment, the filter device 4 includes a box 29 fixed to the upper surface of the collection cover 23. The right end of the discharge channel 28 is connected to the interior of the box 29. The box 29 is filled with water, and the top of the box 29 is connected to the atmosphere. In use, air containing fiberglass enters the water in the box 29 through the discharge channel 28. Fiberglass fragments remain in the water, and clean air escapes upward from the water and is discharged from the top of the box 29, thereby achieving the purpose of filtering out the fiberglass in the air.

[0033] In this embodiment, a mounting block 30 is installed on the outer surface of the collection cover 23, a moving wheel 31 is installed on the outer side of the mounting block 30, and a control lever 32 is installed inside the mounting block 30; by pushing the control lever 32, the collection cover 23 and the main body 1 are moved, so that the friction plate 3 polishes the outer surface of the cabin cover.

[0034] The working principle of this invention is as follows: By pushing the control lever 32, the collection cover 23 and the main body 1 are moved, causing the friction plate 3 to polish the outer surface of the engine compartment cover. The speed of the motor 2 can be adjusted by using the button on the control lever 32, so that the motor 2 drives the friction plate 3 to polish the engine compartment cover. The output shaft 13 of the motor drives the friction plate 3 to rotate, achieving the purpose of polishing. At the same time, the output shaft 13 of the motor drives the pump cylinder 6 to rotate. The rotation of the pump cylinder 6, in conjunction with the plunger 9, can draw air from the collection cover 23 through the suction hole 27. By increasing the speed of the motor 2, the polishing efficiency can be increased. Although the speed of the pump cylinder 6 also increases with the increase of the speed of the motor 2, thus improving the suction capacity of the pump cylinder 6, the suction capacity per revolution of the pump cylinder 6 does not increase. In order to improve the suction capacity per revolution of the pump cylinder 6... When the output shaft 13 of the motor rotates, it simultaneously drives the fixed disk 15 and the sliding disk 16 to rotate. The fixed disk 15 and the sliding disk 16 drive the connecting rod 18 to rotate, causing the hinge of the two hinged connecting rods 18 to be subjected to centrifugal force. This causes the hinge of the two hinged connecting rods 18 to move outward, thereby driving the sliding disk 16 to move upward. Meanwhile, the tension spring 14 pulls the tray 7 downward to rotate, causing the left side of the tray 7 to rotate upward, thereby causing the swashplate 8 to rotate. This increases the tilt angle of the swashplate 8, thereby increasing the stroke of the plunger 9 in the through hole 10 per revolution of the pump cylinder 6. This increases the suction capacity of the pump cylinder 6 per revolution, achieving the purpose of increasing the speed of the motor 2 and thus increasing the suction capacity of the pump cylinder 6 per revolution. This effectively filters the air around the friction plate 3, improving the air quality in the working environment.

Claims

1. A polishing device for a nacelle cover of a wind turbine generator, characterized in that: The device includes a main body, a motor fixedly mounted on the upper surface of the main body, a friction plate mounted on the lower part of the main body, and the output shaft of the motor passing through the main body and fixedly mounted coaxially with the friction plate. A pumping device is installed inside the main body, and the output shaft of the motor simultaneously drives the friction plate and the pumping device to rotate. A filter device is installed on the main body, the suction end of the pumping device is connected to the outer space of the friction plate, and the discharge end of the pumping device is connected to the filter device.

2. The polishing device for the nacelle cover of a wind turbine generator according to claim 1, characterized in that: The main body has a accommodating cavity vertically oriented inside. The pumping device includes a pump cylinder fixedly mounted inside the accommodating cavity of the main body and the output shaft of the motor, and a tray rotatably connected to the main body inside the accommodating cavity of the main body. A swash plate is rotatably connected to the lower end face of the tray. Several plungers are evenly arranged on the lower end face of the swash plate. Several through holes are opened on the upper end face of the pump cylinder. Each plunger is inserted into the corresponding through hole of the pump cylinder. Two collecting chambers are opened on the inner bottom wall of the accommodating cavity of the main body. The left one is the suction chamber and the right one is the discharge chamber. The discharge chamber is connected to the filter device.

3. The polishing device for the nacelle cover of a wind turbine generator according to claim 2, characterized in that: The tray is also equipped with an angle adjustment device, which adjusts the inclination of the tray relative to the horizontal plane according to the rotation speed of the pump cylinder.

4. The polishing device for the nacelle cover of a wind turbine generator according to claim 3, characterized in that: The angle adjustment device includes a tension spring located on the right side of the tray and always in a stretched state. The bottom and top ends of the tension spring are fixedly installed to the body and the right end of the tray, respectively.

5. The polishing device for the nacelle cover of a wind turbine generator according to claim 3, characterized in that: The angle adjustment device also includes a blocking device installed on the output shaft of the motor. The bottom end of the blocking device is always in contact with the upper surface of the tray, and the blocking force of the blocking device is balanced with the force of the tension spring. A centrifugal device is installed on the blocking device.

6. The polishing device for the nacelle cover of a wind turbine generator according to claim 5, characterized in that: The aforementioned blocking device includes a fixed disk fixedly mounted to the output shaft of the motor and a sliding disk slidably mounted on the output shaft of the motor in the vertical direction. A blocking spring is fixedly mounted between the fixed disk and the sliding disk. The blocking spring pushes the sliding disk to move downward and abut against the upper end surface of the tray, forming a blocking force that prevents the tray from rotating. The blocking force of the blocking spring is balanced with the tensile force of the tension spring.

7. The polishing device for the nacelle cover of a wind turbine generator according to claim 6, characterized in that: The centrifuge device includes two hinged links, with the upper link hinged to a fixed disk and the lower link hinged to a sliding disk; the hinged links form a group, and the fixed disk and the sliding disk are provided with a plurality of even groups of hinged links.

8. The polishing device for the nacelle cover of a wind turbine generator according to claim 2, characterized in that: The tray has a rotating groove inside, through which the motor's output shaft passes; the swashplate has an avoidance hole inside, through which the motor's output shaft passes.

9. The polishing device for the nacelle cover of a wind turbine generator according to claim 2, characterized in that: The plunger has a ball fixedly mounted on its top end, and the lower end face of the swashplate has several spherical chambers that correspond to the balls. Each ball is located in its corresponding spherical chamber and can rotate freely within the spherical chamber without leaving it.

10. The polishing device for the nacelle cover of a wind turbine generator according to claim 1, characterized in that: The bottom wall of the suction chamber of the main body is provided with a suction hole, and the bottom end of the suction hole is located inside the collection hood; the bottom wall of the discharge chamber of the main body is provided with a discharge channel, which is connected to the filter device.

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