A fan blade grinding device

Abstract

The present invention discloses a grinding device for a wind turbine blade, which relates to the technical field of wind power blades. The grinding device includes: a traveling mechanism; a grinding mechanism installed on one side of the traveling mechanism and driven by the traveling mechanism to move and grind on the surface of the wind power blade; and a connecting part installed at the bottom of the traveling mechanism and connecting the traveling mechanism to the wind power blade through the connecting part. Among them, the connecting part includes two mutually parallel winding rollers and a connecting belt connected between the two winding rollers. For the grinding device for a wind turbine blade of the present invention, due to the adoption of the traveling mechanism with a connecting part to connect the grinding mechanism to the outer wall of the wind power blade, effectively solves the technical problem of the cumbersome grinding process in the use of the existing grinding device for a wind turbine blade, thereby realizing the connection between the grinding mechanism and the wind power blade, maintaining the position between the grinding mechanism and the wind power blade, and improving the grinding effect and the stability of grinding.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine blades, and particularly relates to a grinding device for wind turbine blades. Background Art

[0002] Wind power is an important renewable energy source. According to the "Global Wind Energy Report 2022" released by the Global Wind Energy Council (GWEC), the global wind power installed capacity reached 93.6 GW in 2021, and China accounted for 50.91% of it. China's offshore wind power installed capacity has leapt to the first in the world. As an important part of wind turbines, the related manufacturing technology of wind turbine blades represents the competitive level of products. During the production and manufacturing process of wind turbine blades, grinding is required to grind the required roughness on the surface of the wind turbine blades, facilitating subsequent painting operations and improving the manufacturing quality of the blades.

[0003] Currently, a Chinese patent with the publication number of CN110625483A discloses a grinding machine for wind turbine blades, which includes an AGV cart. Two columns are arranged side by side on the AGV cart. A sliding plate is movably arranged on the two columns in the vertical direction. A telescopic platform is movably penetrated through the sliding plate in the horizontal direction. One end of the telescopic platform close to the wind turbine blade to be ground is connected with a grinding mechanism, and the grinding mechanism can be adjusted according to the inclination angle of the surface of the wind turbine blade to be ground, ensuring that the grinding mechanism is in perpendicular contact with the surface of the wind turbine blade to be ground during operation. During the grinding process, since the grinding mechanism can be adjusted according to the inclination angle of the surface of the wind turbine blade to be ground, it is ensured that the grinding mechanism is always in perpendicular contact with the surface of the wind turbine blade, greatly improving the grinding efficiency and grinding quality.

[0004] A Chinese patent with the publication number of CN217728242U discloses a grinding robot for wind turbine blades, which includes an omnidirectional movement chassis, a six-degree-of-freedom robotic arm, and a grinding execution mechanism; the first end of the six-degree-of-freedom robotic arm is connected to the upper surface of the omnidirectional movement chassis, and the second end of the six-degree-of-freedom robotic arm is connected to the grinding execution mechanism; the omnidirectional movement chassis includes an upper surface bearing plate, a vehicle frame and a forklift slot, a drawer, and a Mecanum wheel drive unit; the lower surface of the upper surface bearing plate is connected to the vehicle frame and the forklift slot; the drawer is arranged on the vehicle frame and the forklift slot. The six-degree-of-freedom robotic arm of this device can adjust the posture of the grinding mechanism at any time and complete trajectory coverage, effectively solving the difficulties such as large blade size and inaccurate control of grinding allowance; the grinding execution mechanism is directly connected to the dust collection module, effectively preventing the dispersion of dust, greatly improving the working environment, and significantly reducing various direct and indirect grinding operation risks.

[0005] However, during the implementation of the above technical solutions, it is found that there are at least the following technical problems:

[0006] The grinding process is cumbersome and the grinding effect is poor: When the existing fan blade grinding device is in use, it mainly relies on robots to replace manual labor to grind wind power blades. However, due to the limited range of motion of the robots and the three-dimensional structure of the wind power blades, when grinding with robots, the position needs to be continuously adjusted (adjust the position of the wind power blade or the robot). Moreover, when grinding different positions of the wind power blade, the robot needs to continuously adjust the grinding form. In different postures, the fitting degree of the grinding device to the wind power blade, the clamping force of the robot on the grinding device, etc. are not equal, resulting in an inconsistent grinding effect. Not only does it require manual inspection, but also frequent rework, seriously affecting the grinding effect. Therefore, we propose a fan blade grinding device. Summary of the Invention

[0007] (1) Technical problems to be solved

[0008] In view of the deficiencies of the prior art, the present invention provides a fan blade grinding device to solve the technical problems that the grinding process of the existing fan blade grinding device is cumbersome and the grinding effect is poor when in use.

[0009] (2) Technical solutions

[0010] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0011] A fan blade grinding device, which includes a traveling mechanism that drives the grinding mechanism to move, thereby providing power for the grinding mechanism to move and facilitating its movement on the wind power blade. The grinding mechanism can adopt any structure with a grinding function. In order to enable the traveling mechanism to move on the wind power blade, a connecting part is provided at the bottom of the traveling mechanism. This connecting part is in the form of bundling to connect the traveling mechanism to the outside of the wind power blade, enabling the traveling mechanism to move on the wind power blade. The grinding mechanism connected to the traveling mechanism can move outside the wind power blade together with the traveling mechanism, so as to grind while moving, improving the convenience and stability of grinding and avoiding the grinding process from being too cumbersome:

[0012] The traveling mechanism, that is, a device capable of moving. In this application, a traveling mechanism with two tires is adopted, such as a segway;

[0013] The grinding mechanism is installed on one side of the traveling mechanism and is driven by the traveling mechanism to move and grind on the surface of the wind power blade. It is not limited to the structure of this application and can adopt a simple-structured grinding device as long as it can grind the wind power blade; and

[0014] The connecting part is installed at the bottom of the traveling mechanism, and the traveling mechanism is connected to the wind turbine blade through the connecting part. In an bundling method, a connecting belt is wound around the wind turbine blade, so that both the traveling mechanism and the grinding device are fixed to the wind turbine blade, thereby ensuring the distance between the grinding mechanism and the wind turbine blade and improving the stability of grinding;

[0015] Among them, the connecting part includes two mutually parallel winding rollers, a connecting belt connected between the two winding rollers, which surrounds the outside of the wind turbine blade, and the winding rollers drive the connecting belt to wind and unwind under the drive of the internal motor of the traveling mechanism, driving the traveling mechanism to move along the surface of the wind turbine blade. According to needs, the traveling process is divided into two types. One is that during the movement of the traveling mechanism, the winding roller can wind the connecting belt. That is, when the traveling mechanism moves to the left, the winding roller in the moving direction starts to wind the connecting belt, while the winding roller on the other side releases the wound connecting belt; the other is that during the movement of the traveling mechanism, the winding roller does not move, and the connecting belt moves synchronously with the traveling mechanism, that is, during the movement of the traveling mechanism, the connecting belt is driven to move on the outer wall of the wind turbine blade.

[0016] Preferably, when the first method is adopted, anti-slip threads are provided inside the connecting belt, and the friction between the connecting belt and the outer wall of the wind turbine blade is increased through the anti-slip threads, so that the connecting belt is stably connected to the wind turbine blade;

[0017] Among them, the length of the connecting belt is greater than twice the maximum circumference of the wind turbine blade, which facilitates the movement and winding of the connecting belt and avoids the inability of the winding roller to wind due to being too short.

[0018] Preferably, guide rollers are connected to both sides of the traveling mechanism to guide the connecting belt, which is used to guide the connecting belt in and out of the traveling mechanism and improve the stability of the movement of the connecting belt;

[0019] Among them, after the connecting belt extends out of the traveling mechanism, it fits on the outside of the guide roller. When the two winding rollers wind the connecting belt at the same time, the connecting belt can be made to fit on the bottom of the traveling mechanism.

[0020] Preferably, the grinding mechanism and the traveling mechanism are connected through a docking part, and the docking part includes a connecting seat. One end of the connecting seat is connected to the top of the traveling mechanism, and the other end is connected to the grinding mechanism, thereby connecting the grinding mechanism to the traveling mechanism and connecting the two together;

[0021] Among them, the connecting seat is in a "C" shape, and the rotating wheel outside the traveling mechanism is located in the opening at the bottom of the connecting seat, providing space for the rotating wheel of the traveling mechanism.

[0022] Preferably, a docking pipe is installed in the opening of the connection seat, and a docking piece is connected to the side of the docking pipe facing the traveling mechanism. The docking pipe is connected to the rotating wheel through the docking piece, so that the grinding mechanism and the rotating wheel are relatively independent, that is, the rotation of the rotating wheel does not affect the operation of the grinding mechanism, thereby preventing the grinding mechanism from rotating synchronously with the rotating wheel;

[0023] Wherein, the docking piece includes an inner ring and an outer ring that are concentric circles, and two connecting rods are connected between the inner ring and the outer ring through bearings, and the two connecting rods are on the same central axis;

[0024] The inner ring is sleeved on the outside of the docking pipe, and the outer ring is installed on the hub of the rotating wheel. Since the outer ring is connected to the rotating wheel through a bearing, when the rotating wheel rotates, the rotating wheel will not drive the outer ring to rotate. And because the inner ring is connected to the docking pipe, although the inner ring and the outer ring can rotate around the connecting rod as an axis, it will not drive the docking pipe to move. To sum up, it can be seen that when the rotating wheel rotates, it will not drive.

[0025] Preferably, the grinding mechanism includes a mounting seat, and rollers are installed outside the mounting seat. When the traveling mechanism is connected to the wind power blade, the grinding belt outside the rollers fits against the outer wall of the wind power blade, so as to grind the outer wall of the wind power blade, that is, grind while moving;

[0026] Wherein, the roller is driven to rotate by a driving motor installed on the traveling mechanism, which provides power for the grinding belt, so that the grinding belt rotates on the outer wall of the wind power blade, thereby grinding the outer wall of the wind power blade.

[0027] Preferably, the roller includes two adjusting wheels and one movable wheel, and the three are distributed in a triangle;

[0028] Wherein, the grinding belt connected between the two adjusting wheels fits against the outer wall of the wind power blade, which is convenient for subsequent grinding;

[0029] A driving roller is connected to the output shaft of the driving motor, and the driving roller is connected to a driven roller outside one of the adjusting wheels through a synchronous belt. Therefore, when the driving motor drives the driving roller to rotate, the driving roller can drive the driven roller to rotate through the synchronous belt, so that the grinding belt sleeved outside the driven roller rotates, thereby providing power for the rotation of the grinding belt.

[0030] Preferably, an adjusting member is installed inside the mounting seat, and the movable wheel is driven to move up and down through the adjusting member, so as to adjust the tightness of the grinding belt, which is convenient for lubrication and adjustment of the grinding belt and improves the convenience of operation;

[0031] Among them, the adjusting member includes a lifting cylinder, and a plug rod is connected to the telescopic end of the lifting cylinder. Through the lifting cylinder, the plug rod can be driven to move up and down. After the plug rod passes through the mounting seat, it is connected to the clamping bracket outside the movable wheel. Since the clamping bracket is arranged below the movable wheel to support the movable wheel, and one end of the plug rod is connected to the clamping bracket, under the action of the lifting cylinder, the movable wheel can be driven to move up and down. Since the position of the adjusting wheel is constant, during the up and down movement of the movable wheel, the tightness of the grinding belt can be adjusted, which is convenient for replacing the grinding belt of the mechanical energy.

[0032] Preferably, a sleeve is installed outside the mounting seat, and the sleeve extends up and down;

[0033] Among them, after the plug rod passes through the sleeve, it is connected to the clamping bracket, thereby restricting the movement direction of the plug rod so that the plug rod can only move up and down.

[0034] Preferably, the grinding mechanism further includes a movable plate and a docking plate that are slidably connected to each other, and the movable plate is connected to the mounting seat, and the docking plate is connected to the docking portion, so that a relative displacement occurs between the grinding mechanism and the docking portion, enabling the grinding mechanism to move back and forth;

[0035] Among them, a linkage piece is provided on one side of the movable plate facing the docking plate, and after the linkage piece passes through the chute on the outer wall of the docking plate, it is connected to the translation cylinder on the docking plate;

[0036] Under the described adjustment, the mounting seat moves back and forth, thereby adjusting the positional relationship between the grinding mechanism and the outer shell of the wind turbine blade, facilitating the adjustment of the longitudinal movement of the grinding mechanism information.

[0037] (III) Beneficial effects

[0038] 1. Since a traveling mechanism with a connecting portion is adopted to connect the grinding mechanism to the outer wall of the wind turbine blade, effectively solving the technical problems that in the existing wind turbine blade grinding device, the grinding process is cumbersome and the grinding effect is poor. Furthermore, the connection between the grinding mechanism and the wind turbine blade is realized, so that the grinding mechanism can be driven to move following the shape of the wind turbine blade and maintain the position between the grinding mechanism and the wind turbine blade, improving the grinding effect and the stability of grinding.

[0039] 2. Since a translation cylinder is adopted to drive the grinding belt to move back and forth, and the adjusting member is used to adjust the tightness of the grinding belt, effectively solving the technical problems that in the existing wind turbine blade grinding device, the position of the grinding belt cannot be adjusted and it is inconvenient to replace. Furthermore, the adjustment of the position of the grinding belt is realized, and at the same time, the tightness of the grinding belt can be adjusted according to needs, which is convenient for replacement. Description of the drawings

[0040] The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and be able to implement it according to the content of the description, the following takes the preferred embodiments of the present invention and describes them in detail with reference to the accompanying drawings as follows.

[0041] Figure 1 It is the overall structure diagram of the embodiment of the present invention;

[0042] Figure 2 It is the unfolded structure diagram of the connecting part in the embodiment of the present invention;

[0043] Figure 3 It is the structure diagram of the traveling mechanism in the embodiment of the present invention;

[0044] Figure 4 It is the cross-sectional view of the traveling mechanism in the embodiment of the present invention;

[0045] Figure 5 It is one of the structure diagrams of the grinding mechanism in the embodiment of the present invention;

[0046] Figure 6 It is the second structure diagram of the grinding mechanism in the embodiment of the present invention;

[0047] Figure 7 It is the structure diagram of the docking part in the embodiment of the present invention;

[0048] Figure 8 It is the connection structure diagram of the connecting seat and the grinding mechanism in the embodiment of the present invention;

[0049] Figure 9 It is one of the exploded views of the grinding mechanism in the embodiment of the present invention;

[0050] Figure 10 It is the second exploded view of the grinding mechanism in the embodiment of the present invention;

[0051] Figure 11 It is the front view of the grinding mechanism in the embodiment of the present invention.

[0052] Legend description: 1. Traveling mechanism; 2. Grinding mechanism; 21. Mounting seat; 22. Docking plate; 23. Movable plate; 24. Linking piece; 25. Translating cylinder; 261. Driving roller; 262. Driven roller; 27. Adjusting wheel; 28. Adjusting member; 281. Movable wheel; 282. Clamping bracket; 283. Sleeve; 284. Insert rod; 285. Lifting cylinder; 29. Grinding belt; 3. Connecting part; 31. Connecting belt; 32. Winding roller; 33. Guide roller; 4. Rotating wheel; 5. Docking part; 51. Connecting seat; 52. Docking pipe; 53. Docking member; 531. Inner ring; 532. Outer ring; 533. Link. Detailed implementation manners

[0053] By providing a grinding device for a fan blade, the embodiment of the present application effectively solves the technical problems that the existing grinding device for a fan blade is cumbersome in the grinding process and has poor grinding effect. When the existing grinding device for a fan blade is in use, due to the adoption of a traveling mechanism with a connecting part, the grinding mechanism is connected to the outer wall of the wind power blade, thereby realizing the connection between the grinding mechanism and the wind power blade, and then driving the grinding mechanism to move along with the shape of the wind power blade, and maintaining the position between the grinding mechanism and the wind power blade, improving the grinding effect and the stability of grinding; due to the adoption of a translation cylinder to drive the grinding belt to move back and forth, and then adjusting the tightness of the grinding belt by an adjusting part, the adjustment of the position of the grinding belt is realized, and at the same time, the tightness of the grinding belt can be adjusted according to needs, which is convenient for replacement.

[0054] Embodiment 1

[0055] The technical solution in the embodiment of the present application effectively solves the technical problems that the existing grinding device for a fan blade is cumbersome in the grinding process and has poor grinding effect. The general idea is as follows:

[0056] In view of the problems existing in the prior art, the present invention provides a grinding device for a fan blade. The grinding device includes a traveling mechanism 1, which drives a grinding mechanism 2 to move, thereby providing power for the movement of the grinding mechanism 2 and facilitating its movement on the wind power blade. The grinding mechanism 2 can adopt any structure with a grinding function. In order to enable the traveling mechanism 1 to move on the wind power blade, a connecting part 3 is provided at the bottom of the traveling mechanism 1. The connecting part 3 is connected to the outside of the wind power blade in a bundling form, so that the traveling mechanism 1 can move on the wind power blade, and the grinding mechanism 2 connected to the traveling mechanism 1 can move outside the wind power blade along with the traveling mechanism 1, so as to grind while moving, improving the convenience and stability of grinding and avoiding the grinding process from being too cumbersome:

[0057] The traveling mechanism 1, that is, a device capable of moving. In the present application, a traveling mechanism 1 with two tires is adopted, such as a segway;

[0058] The grinding mechanism 2 is installed on one side of the traveling mechanism 1, and the traveling mechanism 1 drives the grinding mechanism 2 to move and grind on the surface of the wind power blade. It is not limited to the structure of the present application, and a grinding device with a simple structure can be adopted as long as it can grind the wind power blade; and

[0059] The connecting part 3 is installed at the bottom of the traveling mechanism 1, and the traveling mechanism 1 is connected to the wind power blade through the connecting part 3. As Figure 2 shown, in a bundling manner, the connecting belt 31 is wound around the wind power blade, so that the traveling mechanism 1 and the grinding device are both fixed to the wind power blade, thereby ensuring the distance between the grinding mechanism 2 and the wind power blade and improving the stability of grinding;

[0060] Among them, the connecting part 3 includes two coiling rollers 32 that are parallel to each other, a connecting belt 31 connected between the two coiling rollers 32, which surrounds the outside of the wind power blade. And the coiling rollers 32 drive the winding and unwinding of the connecting belt 31 under the drive of the internal motor of the traveling mechanism 1, driving the traveling mechanism 1 to move along the surface of the wind power blade. According to needs, the walking process is divided into two types. One is that during the movement of the traveling mechanism 1, the coiling roller 32 can be used to wind the connecting belt 31, that is, when the traveling mechanism 1 moves to the left, the coiling roller 32 in the moving direction starts to wind the connecting belt 31, while the coiling roller 32 on the other side releases the wound connecting belt 31. The other is that during the movement of the traveling mechanism 1, the coiling roller 32 does not move, and the connecting belt 31 moves synchronously with the traveling mechanism 1, that is, during the movement of the traveling mechanism 1, the connecting belt 31 is driven to move on the outer wall of the wind power blade.

[0061] In some examples, when the first method is adopted (in this method, the traveling mechanism 1 needs to walk back and forth, that is, move clockwise for a while, and then move counterclockwise after rotating one circle), anti-slip threads are provided inside the connecting belt 31, and the friction between the connecting belt 31 and the outer wall of the wind power blade is increased through the anti-slip threads, so that the connecting belt 31 is stably connected to the wind power blade;

[0062] Among them, the length of the connecting belt 31 is greater than twice the maximum circumference of the wind power blade, which is convenient for the movement and winding of the connecting belt 31 and avoids the coiling roller 32 being unable to wind due to being too short.

[0063] In some examples, guide rollers 33 are connected to both sides of the traveling mechanism 1 to guide the connecting belt 31, which is used to guide the connecting belt 31 in and out of the traveling mechanism 1 and improve the stability of the movement of the connecting belt 31;

[0064] Among them, after the connecting belt 31 extends out of the traveling mechanism 1, it fits on the outside of the guide roller 33, as Figure 3 and Figure 2 shown. When the two coiling rollers 32 wind the connecting belt 31 at the same time, the connecting belt 31 can be made to fit under the traveling mechanism 1, as Figure 1 shown.

[0065] In some examples, the grinding mechanism 2 and the traveling mechanism 1 are connected through a docking part 5, and the docking part 5 includes a connecting seat 51. One end of the connecting seat 51 is connected to the top of the traveling mechanism 1, and the other end is connected to the grinding mechanism 2, as Figure 5 shown, thereby connecting the grinding mechanism 2 to the traveling mechanism 1 and connecting the two together;

[0066] Among them, the connecting seat 51 is in a "C" shape, and the rotating wheel 4 outside the traveling mechanism 1 is located in the opening at the bottom of the connecting seat 51, providing space for the rotating wheel 4 of the traveling mechanism 1.

[0067] In some examples, a docking pipe 52 is installed in the opening of the connecting seat 51, and a docking member 53 is connected to the side of the docking pipe 52 facing the traveling mechanism 1. The docking pipe 52 is connected to the rotating wheel 4 through the docking member 53, as Figure 5 and Figure 6 shown, making the grinding mechanism 2 relatively independent of the rotating wheel 4, that is, the rotation of the rotating wheel 4 does not affect the operation of the grinding mechanism 2, thereby preventing the grinding mechanism 2 from rotating synchronously with the rotating wheel 4;

[0068] Among them, the docking member 53 includes an inner ring 531 and an outer ring 532 that are concentric circles, and two connecting rods 533 are connected between the inner ring 531 and the outer ring 532 through bearings. The two connecting rods 533 are on the same central axis;

[0069] The inner ring 531 is sleeved outside the docking pipe 52, and the outer ring 532 is installed on the hub of the rotating wheel 4 (connected through a bearing between the two). Since the outer ring 532 is connected to the rotating wheel 4 through a bearing, when the rotating wheel 4 rotates, the rotating wheel 4 will not drive the outer ring 532 to rotate. Also, because the inner ring 531 is connected to the docking pipe 52, although the inner ring 531 and the outer ring 532 can rotate around the connecting rod 533 as an axis, it will not drive the docking pipe 52 to move (the docking pipe 52 is connected to the connecting seat 51, and the connecting seat 51 is connected to the traveling mechanism 1 and cannot rotate). In summary, it can be seen that when the rotating wheel 4 rotates, it will not drive.

[0070] In the specific implementation process, control the traveling mechanism 1 to drive the grinding mechanism 2 to move. Since the traveling mechanism 1 is externally connected to the wind power blade through the connecting belt 31, during the movement of the traveling mechanism 1, the grinding mechanism 2 on the traveling mechanism 1 can grind the outer wall of the wind power blade, thereby ensuring the distance between the grinding mechanism 2 and the wind power blade, improving the convenience and stability of grinding, and avoiding the grinding process from being too cumbersome.

[0071] And according to needs, the traveling process is divided into two types. One is that during the movement of the traveling mechanism 1, the connecting belt 31 can be wound by the winding roller 32 during driving, that is, when the traveling mechanism 1 moves to the left, the winding roller 32 in the moving direction starts to wind the connecting belt 31, and the winding roller 32 on the other side releases the wound connecting belt 31; the other is that during the movement of the traveling mechanism 1, the winding roller 32 does not move, and the connecting belt 31 moves synchronously with the traveling mechanism 1, that is, during the movement of the traveling mechanism 1, it drives the connecting belt 31 to move on the outer wall of the wind power blade.

[0072] Embodiment 2

[0073] Based on Embodiment 1, the embodiment of the present application effectively solves the technical problems that in the existing fan blade grinding device, the position of the grinding belt cannot be adjusted and it is inconvenient to replace. The general idea is as follows:

[0074] The grinding mechanism 2 includes a mounting base 21, and rollers are installed outside the mounting base 21. When the traveling mechanism 1 is connected to the wind power blade, the grinding belt 29 outside the rollers fits against the outer wall of the wind power blade, so as to grind the outer wall of the wind power blade, that is, grind while moving;

[0075] Among them, the rollers are driven to rotate by a driving motor installed on the traveling mechanism 1, providing power for the grinding belt 29, so that the grinding belt 29 rotates on the outer wall of the wind power blade, thereby grinding the outer wall of the wind power blade.

[0076] In some examples, the rollers include two adjusting wheels 27 and one movable wheel 281, and the three are distributed in a triangle, as Figure 11 shown;

[0077] Among them, the grinding belt 29 connected between the two adjusting wheels 27 fits against the outer wall of the wind power blade, facilitating subsequent grinding;

[0078] A driving roller 261 is connected to the output shaft of the driving motor, and the driving roller 261 is connected to a driven roller 262 outside one of the adjusting wheels 27 through a synchronous belt. Therefore, when the driving motor drives the driving roller 261 to rotate, the driving roller 261 can drive the driven roller 262 to rotate through the synchronous belt, so that the grinding belt 29 sleeved outside the driven roller 262 rotates, thereby providing power for the rotation of the grinding belt 29.

[0079] In some examples, an adjusting member 28 is installed inside the mounting base 21, and the movable wheel 281 is driven to move up and down by the adjusting member 28, so as to adjust the tightness of the grinding belt 29, facilitating the replacement and adjustment of the grinding belt 29 and improving the convenience of operation;

[0080] Among them, the adjusting member 28 includes a lifting cylinder 285, and a plug rod 284 is connected to the telescopic end of the lifting cylinder 285. Through the lifting cylinder 285, the plug rod 284 can be driven to move up and down. After the plug rod 284 passes through the mounting base 21, it is connected to a clamping bracket 282 outside the movable wheel 281. Since the clamping bracket 282 is arranged below the movable wheel 281 to support the movable wheel 281, and one end of the plug rod 284 is connected to the clamping bracket 282, under the action of the lifting cylinder 285, the movable wheel 281 can be driven to move up and down. Since the position of the adjusting wheel 27 is constant, during the up and down movement of the movable wheel 281, the tightness of the grinding belt 29 can be adjusted, facilitating the replacement of the grinding belt 29.

[0081] In some examples, a sleeve 283 is installed outside the mounting base 21, and the sleeve 283 extends vertically, as Figure 11 shown;

[0082] wherein, after the insertion rod 284 passes through the sleeve 283, it is connected to the clamping bracket 282, thereby restricting the movement direction of the insertion rod 284 so that the insertion rod 284 can only move up and down.

[0083] In some examples, the grinding mechanism 2 further includes a movable plate 23 and a docking plate 22 that are slidably connected to each other, and the movable plate 23 is connected to the mounting base 21, and the docking plate 22 is connected to the docking portion 5, so that a relative displacement occurs between the grinding mechanism 2 and the docking portion 5, enabling the grinding mechanism 2 to move back and forth;

[0084] wherein, a linkage piece 24 is provided on one side of the movable plate 23 facing the docking plate 22, and after the linkage piece 24 passes through the chute on the outer wall of the docking plate 22, it is connected to the translation cylinder 25 on the docking plate 22;

[0085] Under the actuation of the translation cylinder 25, the mounting base 21 moves back and forth, thereby adjusting the positional relationship between the grinding mechanism 2 and the outer shell of the wind turbine blade, facilitating the adjustment of the longitudinal movement of the grinding mechanism 2 information.

[0086] Finally, it should be noted that: Obviously, the above embodiments are merely examples given to clearly illustrate the present invention and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A fan blade grinding device, characterized in that, The grinding device includes: A traveling mechanism (1); A grinding mechanism (2), which is installed on one side of the traveling mechanism (1), and the traveling mechanism (1) drives the grinding mechanism (2) to move and grind on the surface of the wind turbine blade; and A connecting part (3), which is installed at the bottom of the traveling mechanism (1), and the traveling mechanism (1) is connected to the wind turbine blade through the connecting part (3); Wherein, the connecting part (3) includes two mutually parallel winding rollers (32), a connecting belt (31) connected between the two winding rollers (32), which surrounds the outside of the wind turbine blade, and the winding rollers (32) drive the connecting belt (31) to wind and unwind under the drive of the internal motor of the traveling mechanism (1), driving the traveling mechanism (1) to move along the surface of the wind turbine blade; The grinding mechanism (2) and the traveling mechanism (1) are connected through a docking part (5), and the docking part (5) includes a connecting seat (51), one end of the connecting seat (51) is connected to the top of the traveling mechanism (1), and the other end is connected to the grinding mechanism (2); Wherein, the connecting seat (51) is in a "C" shape, and the rotating wheel (4) outside the traveling mechanism (1) is located in the opening at the bottom of the connecting seat (51); A docking pipe (52) is installed in the opening of the connecting seat (51), and a docking part (53) is connected to the side of the docking pipe (52) facing the traveling mechanism (1), and the docking pipe (52) is connected to the rotating wheel (4) through the docking part (53); Wherein, the docking part (53) includes an inner ring (531) and an outer ring (532) that are concentric circles, and two connecting rods (533) are connected between the inner ring (531) and the outer ring (532), and the two connecting rods (533) are on the same central axis; The inner ring (531) is sleeved on the outside of the docking pipe (52), and the outer ring (532) is installed on the hub of the rotating wheel (4) through a bearing.

2. The a kind of fan blade grinding device according to claim 1, characterized in that: The inner part of the connecting belt (31) is provided with anti-slip threads, and the anti-slip threads increase the friction between the connecting belt (31) and the outer wall of the wind turbine blade; Wherein, the length of the connecting belt (31) is greater than twice the maximum circumference of the wind turbine blade.

3. The aero-engine blade grinding device according to claim 1, characterized in that: Guide rollers (33) are connected to both sides of the traveling mechanism (1) to guide the connecting belt (31); Wherein, after the connecting belt (31) extends out of the traveling mechanism (1), it fits against the outside of the guide roller (33).

4. A fan blade grinding device according to any one of claims 1-3, characterized in that: The grinding mechanism (2) includes a mounting seat (21), and rollers are installed outside the mounting seat (21), and when the traveling mechanism (1) is connected to the wind turbine blade, the grinding belt (29) outside the rollers fits against the outer wall of the wind turbine blade; Wherein, the rollers are driven to rotate by a driving motor installed on the traveling mechanism (1) to provide power for the grinding belt (29).

5. The a kind of fan blade grinding device as described in claim 4, characterized in that: The rollers include two adjusting wheels (27) and a movable wheel (281), and the three are distributed in a triangle; Wherein, the grinding belt (29) connected between the two adjusting wheels (27) fits against the outer wall of the wind turbine blade; A driving roller (261) is connected to the output shaft of the driving motor, and the driving roller (261) is connected to a driven roller (262) outside one of the adjusting wheels (27) through a synchronous belt.

6. The a kind of blower fan blade grinding device as described in claim 5, characterized in that: An adjusting member (28) is installed inside the mounting seat (21), and the movable wheel (281) is driven to move up and down by the adjusting member (28); Among them, the adjusting member (28) includes a lifting cylinder (285), and a plug rod (284) is connected to the telescopic end of the lifting cylinder (285). After the plug rod (284) passes through the mounting seat (21), it is connected to a clamping frame (282) outside the movable wheel (281).

7. The abrasive device for a fan blade according to claim 6, characterized in that: A sleeve (283) is installed outside the mounting seat (21), and the sleeve (283) extends up and down; Among them, after the plug rod (284) passes through the sleeve (283), it is connected to the clamping frame (282).

8. The aero-engine blade grinding device according to claim 1, characterized in that: The grinding mechanism (2) further includes a movable plate (23) and a docking plate (22) that are slidably connected to each other, and the movable plate (23) is connected to the mounting seat (21), and the docking plate (22) is connected to the docking portion (5); Among them, a linkage piece (24) is provided on one side of the movable plate (23) facing the docking plate (22), and after the linkage piece (24) passes through a chute on the outer wall of the docking plate (22), it is connected to a translation cylinder (25) on the docking plate (22); Driven by the translation cylinder (25), the mounting seat (21) moves back and forth.

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