Wind power blade drilling equipment

Abstract

The utility model belongs to the technical field of drilling machining, and particularly relates to wind power blade drilling equipment which comprises a supporting table. The device comprises a supporting table, two supporting frames are fixedly connected to the top of the supporting table and are oppositely arranged, two first sliding grooves are formed in the side walls of the supporting frames, a first supporting plate is slidably connected into the two first sliding grooves, two hydraulic cylinders are fixedly connected to the top of the supporting table, and the tops of the two hydraulic cylinders are fixedly connected to the bottom of the first supporting plate; two second sliding grooves are formed in the side wall of the first supporting plate, electric push rods are slidably connected to the interiors of the second sliding grooves, connecting rods are fixedly connected to the ends of the electric push rods, sliding blocks are slidably connected to the middles of the connecting rods, two first fixing plates are hinged to the side walls of the sliding blocks, and the two first fixing plates are oppositely arranged; and by clamping and fixing the wind power blade, blade shaking can be effectively reduced during drilling, and surface damage caused by blade shaking in the drilling process can be effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of drilling processing, in particular to a wind turbine blade drilling device. Background Art

[0002] The main function of wind turbine blades is to convert natural wind energy into electricity for wind turbines. Wind turbine blades are the core components of wind turbines. The production design of wind turbine blades can directly affect the efficiency of wind energy conversion and is also an important link in the utilization of wind energy.

[0003] The production of wind turbine blades is also relatively complicated. They are mainly made of glass fiber and epoxy resin as raw materials. These raw materials need to be inspected and screened before production to ensure that they meet quality requirements. Then, the blade mold is made according to the design drawings. The raw materials are mixed and covered in the mold. During the processing of wind turbine blades, the wind turbine blades need to be drilled to achieve some performance improvements.

[0004] When drilling holes in wind turbine blades, it is found that the drill bit will vibrate during operation, and the blade will shake when it contacts the blade surface, causing the blade to be unstable during drilling and resulting in damage to the blade surface.

[0005] To this end, the utility model provides a wind turbine blade drilling device. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a wind turbine blade drilling device described in the utility model comprises a support platform; two support frames are fixedly connected to the top of the support platform, and the two support frames are arranged oppositely, and the side walls of the support frames are provided with two first sliding grooves, and the first support plates are slidably connected inside the two first sliding grooves; two hydraulic cylinders are fixedly connected to the top of the support platform, and the tops of the two hydraulic cylinders are fixedly connected to the bottom of the first support plate; the side walls of the first support plate are provided with two second sliding grooves, and an electric push rod is slidably connected inside the second sliding groove, and a connecting rod is fixedly connected to the end of the electric push rod, and a sliding block is slidably connected to the middle of the connecting rod, and the sliding block Two first fixing plates are hinged on the side wall, and the two first fixing plates are arranged opposite to each other. The end of the first fixing plate is hinged to the second fixing plate, and the end of the second fixing plate is hinged to the end of the connecting rod. By clamping and fixing the wind turbine blades, the shaking of the blades can be effectively reduced during drilling, and the surface damage caused by the shaking of the blades during the drilling process can be effectively reduced. The blades are fixed during drilling to increase stability, which can effectively increase the accuracy after drilling, reduce the problem of deviation in hole diameter or hole depth caused by unstable blades during drilling, and effectively reduce the deviation in blade drilling that leads to reduced efficiency, so that the overall performance and aerodynamic effect of the wind turbine blades after production are effectively increased.

[0008] Preferably, a drilling machine is fixedly connected to the middle part of the support platform, and two fixing rods are fixedly connected to the end of the drilling machine, and the two fixing rods are arranged oppositely. A groove is opened in the middle part of the fixing rod, and a spring is fixedly connected to the inside of the fixing rod, and a pressure plate is fixedly connected to the end of the spring, and a pressure rod is fixedly connected to the end of the pressure plate. The middle part of the pressure rod passes through one side of the fixing rod, and the end of the pressure rod is fixedly connected to a first fixing block. The first fixing block is used to perform compression during the drilling process, which can effectively reduce the shaking or movement of the wind turbine blades caused by the vibration of the drill bit, and can effectively increase the accuracy of the space after drilling, and reduce the deviation of the drilling position caused by the shaking of the wind turbine blades. Compressing the wind turbine blades can effectively increase the smoothness of the blades after drilling, and can reduce the reduction in service life caused by damage to the blades.

[0009] Preferably, two second support plates are fixedly connected to the side walls of the support frame, a vacuum cleaner is fixedly connected to the middle of the two second support plates, a first connecting pipe is fixedly connected to the side walls of the vacuum cleaner, a collecting box is fixedly connected to the end of the first connecting pipe, and a second connecting pipe is provided on the side walls of the collecting box. The second connecting pipe can effectively suck out debris and impurities in the hole after drilling, thereby effectively reducing the impact of the debris and impurities on the blade nodes, effectively increasing the structural strength and stability of the blades, reducing the impact of debris and impurities accumulated in the holes of wind turbine blades on the utilization rate and power generation rate of wind energy, and reducing debris and impurities can increase the aerodynamic performance of the blades.

[0010] Preferably, a support rod is fixedly connected to the middle part of the collecting box, and a cover plate is rotatably connected to the side wall of the collecting box, the middle part of the support rod passes through the middle part of the cover plate, the second connecting tube is fixedly connected to the side wall of the cover plate, the end of the support rod is fixedly connected to a motor, the output end of the motor is fixedly connected to a connecting block, the side wall of the connecting block is fixedly connected to a second fixed block, the end of the second connecting tube is fixedly connected to a support tube, the middle part of the support tube passes through the middle part of the second fixed block, a plurality of groups of through holes are provided in the middle part of the support tube, a plurality of groups of bristles are fixedly connected to the middle part of the support tube, and the support tube is used for rotating cleaning in the hole of the wind turbine blade, so that the debris and impurities adsorbed on the inner wall after drilling can be effectively cleaned, and the residue of some stubborn debris and impurities can be reduced, and the influence of impurities and debris on the drilling accuracy of the wind turbine blade can be reduced, and the residual debris and impurities on the inner wall of the hole can be reduced. The damage to the re-drilling caused by the residual debris and impurities on the inner wall of the hole can be reduced, and the corrosion problem of the wind turbine blade caused by the debris remaining in the hole can be reduced.

[0011] Preferably, the drilling machine side wall is fixedly connected with a connecting plate, the connecting plate side wall is fixedly connected with a water pump, the water pump side wall is fixedly connected with a water inlet pipe, and the bottom of the water pump is fixedly connected with a first water outlet pipe, which can effectively reduce a large amount of heat generated due to friction when drilling holes in wind turbine blades, can effectively reduce heat generation, and reduce damage caused by overheating of the drill bit. At the same time, spraying water at the drill bit can reduce the wear on the drill bit during drilling, effectively lubricate the drill bit, and can reduce dust and impurities generated during drilling, and reduce pollution to the environment during processing.

[0012] Preferably, a second water outlet pipe is fixedly connected to one end of the side wall of the first water outlet pipe away from the water pump, and a spray head is fixedly connected to the bottom of the second water outlet pipe, which can spray the drill bit locally when drilling holes in wind turbine blades. Local spraying can effectively control the cooling range of the drill bit, reduce water usage, effectively clean the drill bit, and make the local drill bit cooling more even.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The wind turbine blade drilling equipment described in the utility model can effectively reduce the shaking of the wind turbine blades during drilling by clamping and fixing the wind turbine blades, can effectively reduce the surface damage caused by the shaking of the blades during the drilling process, and can fix the blades during drilling to increase stability, which can effectively increase the accuracy after drilling, reduce the problem of deviation in hole diameter or hole depth caused by blade instability during drilling, effectively reduce the deviation in blade drilling that leads to reduced efficiency, and effectively increase the overall performance and aerodynamic effect of the wind turbine blades after production.

[0015] 2. The wind turbine blade drilling equipment described in the utility model can effectively reduce the shaking or movement of the wind turbine blade caused by the vibration of the drill bit by pressing it during the drilling process through the first fixed block, can effectively increase the accuracy of the space after drilling, and reduce the deviation of the drilling position caused by the shaking of the wind turbine blade. Pressing the wind turbine blade can effectively increase the smoothness of the blade after drilling and can reduce the reduction in service life caused by damage to the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a three-dimensional diagram of a wind turbine blade drilling device in the utility model;

[0018] Figure 2 It is a schematic diagram of the matching structure of the first support plate and the hydraulic cylinder in the utility model;

[0019] Figure 3 It is a schematic diagram of the matching structure of the collecting box and the supporting tube in the utility model;

[0020] Figure 4 This is a schematic diagram of the matching structure of the water pump and the spray head in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the spring in the utility model;

[0022] Figure 6 It is a structural schematic diagram of the slider in the utility model;

[0023] In the figure: 1. first slide; 11. first support plate; 12. hydraulic cylinder; 13. second slide; 14. electric push rod; 15. connecting rod; 16. slider; 17. first fixed plate; 18. second fixed plate; 2. fixing rod; 21. groove; 22. spring; 23. pressure plate; 24. pressure rod; 25. first fixed block; 3. second support plate; 31. vacuum cleaner; 32. first connecting pipe; 33. collecting box; 34. second connecting pipe; 4. cover plate; 41. support rod; 42. motor; 43. connecting block; 44. second fixed block; 45. support pipe; 46. through hole; 47. bristles; 5. connecting plate; 51. water pump; 52. water inlet pipe; 53. first water outlet pipe; 6. second water outlet pipe; 61. spray head; 7. rubber pad; 8. support table; 81. support frame; 82. drilling machine. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1 , Figure 2 , Figure 6 As shown, a wind turbine blade drilling device described in an embodiment of the utility model comprises a support platform 8; two support frames 81 are fixedly connected to the top of the support platform 8, and the two support frames 81 are arranged oppositely. The side walls of the support frames 81 are provided with two first slide grooves 1, and the first support plates 11 are slidably connected inside the two first slide grooves 1; two hydraulic cylinders 12 are fixedly connected to the top of the support platform 8, and the tops of the two hydraulic cylinders 12 are fixedly connected to the bottom of the first support plate 11; two second slide grooves 13 are provided on the side walls of the first support plate 11, and an electric push rod 14 is slidably connected inside the second slide groove 13; a connecting rod 15 is fixedly connected to the end of the electric push rod 14, and a slider 16 is slidably connected to the middle of the connecting rod 15; two first fixed plates 17 are hinged to the side walls of the slider 16, and the two first fixed plates 17 are arranged oppositely, and the end of the first fixed plate 17 is hinged to the second fixed plate 18, and the end of the second fixed plate 18 is hinged to the end of the connecting rod 15. When working, the first support plate 17 is opened by opening the hydraulic cylinder 12 to move 11 moves up and down inside the first slide groove 1, and the connecting rod 15 is moved to the positions on both sides of the wind turbine blade by the two electric push rods 14. Thereafter, the two electric push rods 14 are slid through the ends of the two connecting rods 15 to clamp the wind turbine blade, and the sliders 16 on both sides are slid to make the first fixing plate 17 push the second fixing plate 18. The second fixing plates 18 on both sides are fitted and fixed to the surface of the blade under the push of the first fixing plate 17, and the first supporting plate 11 is moved up and down by the hydraulic cylinder 12 to fix the required drilling hole of the blade to the drill bit position at the end of the drilling machine 82. By clamping and fixing the wind turbine blade, the shaking of the blade can be effectively reduced during drilling, and the shaking of the blade during drilling can be effectively reduced to cause surface damage. The blade can be fixed during drilling to increase stability, which can effectively increase the accuracy after drilling, reduce the problem of deviation in the aperture or hole depth caused by the instability of the blade during drilling, and effectively reduce the deviation caused by the blade drilling, resulting in reduced efficiency, so that the wind turbine blade after production can effectively increase the overall performance and aerodynamic effect.

[0026] like Figure 1 , Figure 4 , Figure 5As shown, a drilling machine 82 is fixedly connected to the middle of the support platform 8, and two fixing rods 2 are fixedly connected to the ends of the drilling machine 82. The two fixing rods 2 are arranged oppositely, and a groove 21 is opened in the middle of the fixing rod 2. A spring 22 is fixedly connected to the inside of the fixing rod 2, and a pressure plate 23 is fixedly connected to the end of the spring 22. A pressure rod 24 is fixedly connected to the end of the pressure plate 23. The middle of the pressure rod 24 passes through one side of the fixing rod 2, and the end of the pressure rod 24 is fixedly connected to a first fixing block 25. When working, the first fixing block 25 contacts the surface of the wind turbine blade during the drilling process. After contacting the surface of the wind turbine blade The first fixing block 25 squeezes the pressing rod 24 by pressure, so that one end of the pressing rod 24 moves toward the inside of the fixing rod 2 and is contracted by the spring 22. During the drilling process, the surface of the wind turbine blade is pressed and fixed by the first fixing block 25. The first fixing block 25 is used to press during the drilling process, which can effectively reduce the shaking or movement of the wind turbine blade caused by the vibration of the drill bit, and can effectively increase the accuracy of the hole after drilling, and reduce the deviation of the drilling position caused by the shaking of the wind turbine blade. Pressing the wind turbine blade can effectively increase the smoothness of the blade after drilling, and can reduce the reduction in service life caused by damage to the blade.

[0027] like Figure 1 and Figure 3 As shown, two second support plates 3 are fixedly connected to the side wall of the support frame 81, and a vacuum cleaner 31 is fixedly connected to the middle of the two second support plates 3. A first connecting pipe 32 is fixedly connected to the side wall of the vacuum cleaner 31, and a collecting box 33 is fixedly connected to the end of the first connecting pipe 32. A second connecting pipe 34 is arranged on the side wall of the collecting box 33. During operation, after the drilling is completed, the drilling position of the wind turbine blade is moved to the corresponding position of the second connecting pipe 34, and the vacuum cleaner 31 is powered on to suck air inside, and debris and impurities are sucked into the collecting box 33 through the second connecting pipe 34, and then sucked through the first connecting pipe 32 after passing through the collecting box 33. By effectively sucking out the debris and impurities in the hole after drilling through the second connecting pipe 34, the influence of the debris and impurities on the blade section can be effectively reduced, the structural strength and stability performance of the blade can be effectively increased, and the influence of the debris and impurities accumulated in the hole of the wind turbine blade on the utilization rate and power generation rate of wind energy can be reduced. Reducing the debris and impurities can increase the aerodynamic performance of the blade.

[0028] like Figure 1 and Figure 3As shown, a support rod 41 is fixedly connected to the middle of the collecting box 33, and a cover plate 4 is rotatably connected to the side wall of the collecting box 33. The middle part of the support rod 41 passes through the middle part of the cover plate 4, and the second connecting pipe 34 is fixedly connected to the side wall of the cover plate 4. A motor 42 is fixedly connected to the end of the support rod 41, and a connecting block 43 is fixedly connected to the output end of the motor 42. A second fixed block 44 is fixedly connected to the side wall of the connecting block 43, and a support tube 45 is fixedly connected to the end of the second connecting tube 34. The middle part of the support tube 45 passes through the middle part of the second fixed block 44. A plurality of through holes 46 are provided in the middle part of the support tube 45, and a plurality of bristles 47 are fixedly connected to the middle part of the support tube 45. When working, the cover plate 4 is rotated on the side wall of the collecting box 33, and the motor 42 fixed inside the collecting box 33 is energized to rotate the connecting block 43, and the second fixed block 44 is fixed to the connecting block 43 at the same time. Rotation, when the connecting block 43 rotates, the support tube 45 and the second connecting tube 34 are driven to rotate at the same time through the transmission method. Therefore, when the second connecting tube 34 rotates, the cover plate 4 rotates at the same time on the side wall of the collecting box 33, by putting the support tube 45 into the wind turbine blade hole, and cleaning the inner surface of the hole through the support tube 45 after rotating inside the hole, connecting with the second connecting tube 34 through the support tube 45, sucking the debris in the hole through multiple groups of through holes 46, and rotating and cleaning in the wind turbine blade hole through the support tube 45, the debris impurities adsorbed on the inner wall after drilling can be effectively cleaned, and some stubborn debris impurities can be reduced. The influence of impurities and debris on the drilling accuracy of wind turbine blades can be reduced, and the residual debris impurities on the inner wall of the hole can be reduced. The damage to the re-drilling caused by the residual debris impurities is reduced, and the corrosion problem of the wind turbine blade caused by the debris remaining in the hole is reduced.

[0029] like Figure 1 and Figure 4 As shown, the side wall of the drilling machine 82 is fixedly connected to a connecting plate 5, the side wall of the connecting plate 5 is fixedly connected to a water pump 51, the side wall of the water pump 51 is fixedly connected to a water inlet pipe 52, and the bottom of the water pump 51 is fixedly connected to a first water outlet pipe 53. When working, the water pipe is connected to the end of the water inlet pipe 52, and the water pump 51 is energized to allow water to flow into the bottom of the water inlet pipe 52. A small hole is opened at the bottom of the water inlet pipe 52, and water is sprayed at the drill bit when drilling holes in wind turbine blades. This can effectively reduce a large amount of heat generated due to friction when drilling holes in wind turbine blades, can effectively reduce heat generation, and reduce damage caused by overheating of the drill bit. At the same time, spraying water at the drill bit can reduce the wear on the drill bit when drilling, effectively lubricate the drill bit, and can reduce dust and impurities generated during drilling, thereby reducing pollution to the environment during processing.

[0030] like Figure 1 and Figure 4As shown, a second water outlet pipe 6 is fixedly connected to one end of the side wall of the first water outlet pipe 53 away from the water pump 51, and a spray head 61 is fixedly connected to the bottom of the second water outlet pipe 6. When working, water flows into the interior through the second water outlet pipe 6, and the water flows through the spray head 61 inside the second water outlet pipe 6 to spray the drill bit, so that the drill bit can be sprayed locally when drilling holes in wind turbine blades. Local spraying can effectively control the cooling range of the drill bit, reduce the amount of water used, effectively clean the drill bit, and make the local drill bit cooling more uniform.

[0031] like Figure 4 and Figure 5 As shown, a rubber pad 7 is installed on the side wall of the first fixing block 25, and the rubber pad 7 is fixedly connected to the side wall of the first fixing block 25. When working, the rubber pad 7 fits with the surface of the wind turbine blade, which can effectively reduce the friction generated after the first fixing block 25 contacts the wind turbine blade, and can effectively reduce the wear problem of the wind turbine blade caused by friction, and reduce the scratches on the surface of the wind turbine blade.

[0032] During operation, the hydraulic cylinder 12 is opened to move the first support plate 11 up and down inside the first slide slot 1, and the connecting rod 15 is moved to the positions on both sides of the wind turbine blade by the two electric push rods 14. Thereafter, the two electric push rods 14 are slid through the ends of the two connecting rods 15 to clamp the wind turbine blade, and the sliders 16 on both sides are slid to make the first fixing plate 17 push the second fixing plate 18. The second fixing plates 18 on both sides are fitted and fixed to the surface of the blade under the push of the first fixing plate 17, and the first support plate 11 is moved up and down by the hydraulic cylinder 12 to fix the required drilling position of the blade The drill bit is positioned at the end of the drilling machine 82. During the drilling process, the first fixing block 25 contacts the surface of the wind turbine blade. After contacting the surface of the wind turbine blade, the first fixing block 25 squeezes the pressure rod 24 by pressure, so that one end of the pressure rod 24 moves toward the inside of the fixing rod 2 and contracts through the spring 22. During the drilling process, the first fixing block 25 presses the surface of the wind turbine blade to fix it. After the drilling is completed, the drilling position of the wind turbine blade is moved to the corresponding position of the second connecting pipe 34, and the vacuum cleaner 31 is powered on to suck air into the inside, and the debris and impurities are sucked into the collection box 33 through the second connecting pipe 34. After passing through the inside of the collection box 33, it is sucked in through the first connecting pipe 32, and the cover plate 4 is rotated on the side wall of the collection box 33. After the motor 42 fixed to the inside of the collection box 33 is energized, the connecting block 43 can be rotated, and the second fixing block 44 is fixed to the connecting block 43 and rotates at the same time. When the connecting block 43 rotates, the support tube 45 and the second connecting tube 34 are driven to rotate at the same time through the transmission mode. Therefore, when the second connecting tube 34 rotates, the cover plate 4 rotates at the side wall of the collection box 33 at the same time, and by putting the support tube 45 into the hole of the wind turbine blade The support pipe 45 is used to clean the inner surface of the hole after rotating inside the hole, and the support pipe 45 is used to connect with the second connecting pipe 34, and the debris in the hole is sucked in through the plurality of through holes 46, and the water pipe is connected to the end of the water inlet pipe 52, and the water pump 51 is powered on to allow the water to flow into the bottom of the water inlet pipe 52, and a small hole is opened at the bottom of the water inlet pipe 52, and water is sprayed at the drill bit when drilling a hole in the wind turbine blade, and the water flows into the inside through the second water outlet pipe 6, and the water flows inside the second water outlet pipe 6 through the spray head 61 to spray the drill bit, and fits with the surface of the wind turbine blade through the rubber pad 7.

[0033] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A wind turbine blade drilling device, comprising a support platform (8); characterized in that: The top of the support platform (8) is fixedly connected to two support frames (81), the two support frames (81) are arranged opposite to each other, the side walls of the support frames (81) are provided with two first slide grooves (1), the insides of the two first slide grooves (1) are slidably connected with a first support plate (11), the top of the support platform (8) is fixedly connected to two hydraulic cylinders (12), the tops of the two hydraulic cylinders (12) are fixedly connected to the bottom of the first support plate (11), and the side walls of the first support plate (11) are provided with two second slide grooves (13 ), an electric push rod (14) is slidably connected inside the second slide groove (13), a connecting rod (15) is fixedly connected to the end of the electric push rod (14), a slider (16) is slidably connected to the middle of the connecting rod (15), and the side wall of the slider (16) is hinged with two first fixed plates (17), the two first fixed plates (17) are arranged opposite to each other, the end of the first fixed plate (17) is hinged with a second fixed plate (18), and the end of the second fixed plate (18) is hinged to the end of the connecting rod (15).

2. A wind turbine blade drilling device according to claim 1, characterized in that: A drilling machine (82) is fixedly connected to the middle of the support platform (8), and two fixing rods (2) are fixedly connected to the ends of the drilling machine (82). The two fixing rods (2) are arranged opposite to each other, and a groove (21) is opened in the middle of the fixing rod (2). A spring (22) is fixedly connected inside the fixing rod (2), and a pressure plate (23) is fixedly connected to the end of the spring (22). A pressure rod (24) is fixedly connected to the end of the pressure plate (23). The middle of the pressure rod (24) passes through one side of the fixing rod (2), and the end of the pressure rod (24) is fixedly connected to a first fixing block (25).

3. A wind turbine blade drilling device according to claim 2, characterized in that: The support frame (81) has two second support plates (3) fixedly connected to its side wall, a vacuum cleaner (31) is fixedly connected to the middle of the two second support plates (3), a first connecting pipe (32) is fixedly connected to the side wall of the vacuum cleaner (31), a collection box (33) is fixedly connected to the end of the first connecting pipe (32), and a second connecting pipe (34) is provided on the side wall of the collection box (33).

4. A wind turbine blade drilling device according to claim 3, characterized in that: A support rod (41) is fixedly connected to the middle of the collecting box (33); a cover plate (4) is rotatably connected to the side wall of the collecting box (33); a middle of the support rod (41) passes through the middle of the cover plate (4); the second connecting tube (34) is fixedly connected to the side wall of the cover plate (4); an end of the support rod (41) is fixedly connected to a motor (42); an output end of the motor (42) is fixedly connected to a connecting block (43); a side wall of the connecting block (43) is fixedly connected to a second fixing block (44); an end of the second connecting tube (34) is fixedly connected to a support tube (45); a middle of the support tube (45) passes through the middle of the second fixing block (44); a plurality of through holes (46) are provided in the middle of the support tube (45); a plurality of bristles (47) are fixedly connected to the middle of the support tube (45).

5. A wind turbine blade drilling device according to claim 4, characterized in that: The side wall of the drilling machine (82) is fixedly connected to a connecting plate (5), the side wall of the connecting plate (5) is fixedly connected to a water pump (51), the side wall of the water pump (51) is fixedly connected to a water inlet pipe (52), and the bottom of the water pump (51) is fixedly connected to a first water outlet pipe (53).

6. The wind turbine blade drilling device according to claim 5, characterized in that: A second water outlet pipe (6) is fixedly connected to one end of the side wall of the first water outlet pipe (53) away from the water pump (51), and a spray head (61) is fixedly connected to the bottom of the second water outlet pipe (6).

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