Wind power blade repairing device

Abstract

The invention provides a wind power blade repairing device, and relates to the technical field of wind power equipment maintenance, and the wind power blade repairing device comprises a plurality of bases used for placing wind power blades; the guide mechanism is slidably arranged on the ground in the arrangement direction of the base, and the repairing frame is slidably arranged on the upper portion of the wind power blade in the length direction of a guide plate; the repairing mechanism is arranged on the repairing frame in a sliding manner; the repairing mechanism comprises a first repairing seat and a second repairing seat, telescopic adjusting columns are arranged in the first repairing seat and the second repairing seat, and material uniformizing scraping plates capable of being attached to the wind power blades are arranged at the bottom ends of the telescopic adjusting columns; a liquid supply mechanism and an unwinding mechanism are arranged on the first repairing base, and a connecting mechanism used for being connected with the first repairing base and a positioning mechanism used for fixing the position of the wind power blade are arranged on the second repairing base. According to the device, the coating process of the repairing liquid and the pasting process of the fiber cloth can be conveniently completed, so that the convenience of the repairing process of the wind power blade is improved, and meanwhile, the efficiency of repairing operation is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power equipment maintenance, and in particular to a wind power blade repair device. Background Art

[0002] Wind turbine blades are the core components of wind turbines, converting natural wind energy into electrical energy. They capture wind energy, convert it into mechanical energy, and then into electrical energy through the generator. They play a vital role in wind power generation systems. Over time, wind turbine blades can wear on their surfaces. These wear requires prompt removal and repair to avoid potential safety hazards.

[0003] The wind turbine blade repair process requires evenly applying repair fluid to the surface of the damaged part, and then pasting multiple layers of fiber cloth. After each layer of fiber cloth is pasted, the surface of the fiber cloth needs to be coated with repair fluid before the next layer of fiber cloth is pasted. The current repair method is often done manually. Due to the large size of wind turbine blades, workers need to use tools to climb to the top of the wind turbine blades to operate, and the operation process is cumbersome, resulting in low efficiency of the repair work. Summary of the Invention

[0004] The object of the present invention is to provide a wind turbine blade repair device that can conveniently complete the coating process of the repair liquid and the pasting process of the fiber cloth, thereby improving the convenience of the wind turbine blade repair process and improving the efficiency of the repair operation.

[0005] The present invention is achieved through the following technical solutions: a wind turbine blade repair device, comprising: a plurality of bases, wherein the plurality of bases are spaced apart and distributed on the ground, and each base is provided with a placement groove for placing the wind turbine blade; a guide mechanism, wherein the guide mechanism is slidably arranged on the ground along the arrangement direction of the bases and is located outside the bases, the guide mechanism comprises a plurality of support rods and a guide plate detachably arranged between the plurality of support rods, and the bottom of the guide plate is provided with a groove adapted to the shape of a specified segment of the wind turbine blade; a repair frame, wherein the repair frame is slidably arranged on the upper part of the wind turbine blade along the length direction of the guide plate, and the length direction of the repair frame is consistent with the width direction of the wind turbine blade; a repair mechanism, wherein the repair mechanism comprises a first repair seat and a second repair seat, and the first repair seat and the second repair seat are respectively provided. The repair seats are both slidably arranged on the repair frame along the length direction of the repair frame, and the first repair seat and the second repair seat are both slidably connected with a telescopic adjustment column in the vertical direction, and a compression spring is provided between the telescopic adjustment column and the first repair seat or the second repair seat, and the top of the telescopic adjustment column is provided with a ball that can fit into the groove of the guide plate, and the bottom end of the telescopic adjustment column is provided with a material scraper that can fit into the wind turbine blade; wherein, the first repair seat is provided with a liquid supply mechanism for supplying repair liquid to the wind turbine blade and a unwinding mechanism for supplying fiber cloth, and the repair frame is equipped with a transverse movement component for driving the first repair seat to move, and the second repair seat is provided with a connecting mechanism for connecting with the first repair seat and a positioning mechanism for fixing the position with the wind turbine blade.

[0006] Furthermore, the connecting mechanism includes a rotating ring and a rotating assembly for driving the rotating ring to rotate, the rotating ring is provided with a claw, and the first repair seat is provided with a block for the claw to clamp; the positioning mechanism includes a positioning electric cylinder arranged at the bottom end of the telescopic adjustment column, and the piston rod of the positioning electric cylinder is connected to the positioning block; the second repair seat is provided with a touch switch for starting the positioning electric cylinder, and after the claw rotates to disengage from the block, it can abut against the touch switch and drive the positioning electric cylinder to open.

[0007] Furthermore, the unwinding mechanism includes an unwinding rack rotatably arranged on the first repair seat, a fiber cloth roll is installed on the unwinding rack, and abutments are provided on both sides of the second repair seat. When the second repair seat is in a connected state with the first repair seat, the abutments abut against the unwinding rack to make the fiber cloth roll in a suspended state; when the second repair seat is separated from the first repair seat, the abutments are disengaged from the unwinding rack, and the unwinding rack can rotate and make the fiber cloth roll fit against the wind turbine blade.

[0008] Furthermore, the abutment member includes a fixed block, a connecting rod and an abutment block, the fixed block is fixedly set on the second repair seat, the connecting rod is fixedly set on the side of the fixed block close to the first repair seat, the abutment block is fixedly set on the connecting rod and an inclined surface is provided on the abutment block.

[0009] Furthermore, the rotating assembly includes a rotating motor, a driving gear and a driven gear ring. A motor seat is provided on the second repair seat. The rotating motor is fixedly provided on the motor seat. The driving gear is fixedly connected to the output shaft of the rotating motor. The driven gear ring is coaxially connected to the rotating ring and rotates with the second repair seat.

[0010] Furthermore, the liquid supply mechanism includes a liquid supply cylinder, an infusion pump, an infusion tube and a flaring bucket. A placement seat is provided on one side of the first repair seat. The liquid supply cylinder is fixedly set on the placement seat. The infusion pump is set at the bottom end of the liquid supply cylinder. The infusion tube is connected to the outlet end of the infusion pump. The bottom end of the infusion tube passes through the first repair seat and extends to the lower part of the first repair seat. The flaring bucket is set at the bottom end of the infusion tube.

[0011] Furthermore, the flaring bucket is connected to the liquid infusion tube through a flexible bellows, and a connecting plate is provided between the flaring bucket and the material-splitting scraper at the bottom of the first repair seat.

[0012] Furthermore, it also includes a conveying mechanism, which is arranged at the bottom of the guide mechanism and below the ground. The conveying mechanism includes two conveying chains, sprockets are provided at both ends of the conveying chain, and a connecting shaft is provided between the two sprockets located on the same side, and a conveying motor is provided at the end of one of the connecting shafts, and multiple support rods can be detachably arranged on the conveying chain.

[0013] Furthermore, the support rod includes a bottom rod and a top rod, the bottom rod is detachably arranged on the conveying chain, the top rod is telescopically arranged on the top of the bottom rod, the bottom rod is provided with a lifting electric cylinder for driving the top rod to rise and fall, and the guide plate is detachably connected to the top rod.

[0014] Furthermore, a guide rod is provided between the two bottom rods on the same side of the wind turbine blade, a guide hole is provided on the repair frame and is slidably connected to the guide rod, and a roller is provided at the bottom of the repair frame.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects: 1. The present invention is equipped with multiple guide plates that are adapted to the segment shapes of wind turbine blades. When a specified segment of a wind turbine blade needs to be repaired, the corresponding guide plates are installed between multiple support rods, that is, they can guide the repair mechanism above the part to be repaired of the wind turbine blade, so that the moving trajectory of the repair mechanism is adapted to the shape of the wind turbine blade, thereby facilitating the repair process.

[0016] 2. The present invention connects the second repair seat to the first repair seat in a detachable manner. When the first repair seat and the second repair seat are in a connected state, the first repair seat and the second repair seat are driven by the transverse movement component to synchronously move back and forth along the length direction of the repair frame, and the material-leveling scraper located at the bottom of the first repair seat and the second repair seat can evenly apply the repair liquid on the wind turbine blade; when the second repair seat is not connected to the first repair seat, it will not move synchronously with the first repair seat. The second repair seat can press the end of the fiber cloth roll to fix the position, and the unwinding frame unwinds the fiber cloth roll during the subsequent movement. The material-leveling scraper at the bottom of the first repair seat can continue to compact the fiber cloth during the movement, thereby facilitating the pasting process of the fiber cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the present invention in use; Figure 2 It is a structural schematic diagram of the guide mechanism of the present invention on the transmission mechanism; Figure 3 It is a structural schematic diagram of the repair frame, repair mechanism and guide mechanism of the present invention; Figure 4 This is a schematic structural diagram of the repair mechanism of the present invention on the repair frame; Figure 5 Schematic diagram of the structure of the repair mechanism of the present invention; Figure 6 This is a structural schematic diagram of the liquid supply mechanism and the unwinding mechanism of the present invention on the first repair seat; Figure 7 This is a structural schematic diagram of the repair mechanism when the first repair seat and the second repair seat are separated from each other; Figure markings: 1-base, 11-placement groove, 2-guide mechanism, 21-support rod, 211-bottom rod, 212-top rod, 213-lifting cylinder, 214-guide rod, 22-guide plate, 221-groove, 3-repair frame, 31-transverse movement assembly, 311-transverse movement motor, 312-screw, 313-slide rod, 32-roller, 4-repair mechanism, 41-first repair seat, 411-block, 42-second repair seat, 421-abutment, 4211-fixed block, 4212-connecting rod, 4213-abutment block, 43-telescopic adjustment column, 431-compression spring, 432-ball, 433-scraper, 5-liquid supply mechanism, 51-supply Liquid cylinder, 52-infusion pump, 53-infusion tube, 54-expanding bucket, 55-placement seat, 56-flexible bellows, 57-connecting plate, 6-unwinding mechanism, 61-unwinding frame, 62-fiber cloth roll, 63-pressing member, 631-fixing part, 632-pressing part, 633-spring sheet, 7-connecting mechanism, 71-rotating ring, 711-claw, 72-rotating assembly, 721-rotating motor, 722-driving gear, 723-driven gear ring, 724-motor seat, 8-positioning mechanism, 81-positioning electric cylinder, 82-positioning block, 83-touch switch, 9-transmission mechanism, 91-transmission chain, 92-sprocket, 93-connecting shaft, 94-transmission motor. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0020] Example The following reference Figure 1-Figure 7As shown, combined with a specific embodiment, the present embodiment provides a wind turbine blade repair device, comprising a plurality of bases 1, a guide mechanism 2 slidingly arranged on the outside of the base 1, a repair frame 3 located between the guide mechanism 2 and the wind turbine blade, and a repair mechanism 4 slidingly mounted on the repair frame 3. The plurality of bases 1 are spaced apart on the ground and each base 1 is provided with a placement groove 11 for placing the wind turbine blade. The shapes of the plurality of placement grooves 11 are adapted to the shapes of designated parts of the wind turbine blade so that the wind turbine blade can be stably placed; the guide mechanism 2 is slidingly arranged on the ground along the arrangement direction of the base 1 and is located outside the base 1. The guide mechanism 2 comprises a guide plate 22 and a plurality of support rods 21 arranged at the four corners of the guide plate 22. The guide plate 22 and each support rod 21 are detachably connected by bolts. The bottom of the guide plate 22 is provided with a groove 221 adapted to the shape of a designated segment of the wind turbine blade.

[0021] Reference Figure 1 、 Figure 2 As shown, the wind turbine blade repair device of this embodiment also includes a conveying mechanism 9, which is arranged at the bottom of the guide mechanism 2 and is located below the ground. The conveying mechanism 9 includes two conveying chains 91, and sprockets 92 are provided at both ends of the conveying chain 91. A connecting shaft 93 is provided between the two sprockets 92 on the same side. A conveying motor 94 is provided at the end of one of the connecting shafts 93. The multiple support rods 21 can be detachably mounted on the conveying chain 91. When the wind turbine blades are hoisted to the upper part of multiple bases 1, the guide mechanism 2 is located on the outer side of the base 1 to avoid obstruction to the hoisting process. After the wind turbine blades are placed on the multiple bases 1, starting the conveying motor 94 to drive one of the connecting shafts 93 to rotate can synchronize the transmission of the two conveying chains 91, thereby driving the guide mechanism 2 to move along the arrangement direction of the base 1, so as to drive the guide plate 22 to move to the upper part of the specified section of the wind turbine blade.

[0022] Reference Figure 2 、 Figure 3 As shown, the support rod 21 includes a bottom rod 211 and a top rod 212. The bottom rod 211 is detachably mounted on the conveyor chain 91, and the top rod 212 is retractably mounted on the top of the bottom rod 211. The bottom rod 211 is provided with a lifting cylinder 213 for driving the top rod 212 up and down. The four corners of the guide plate 22 are detachably connected to the four top rods 212. During the movement of the guide mechanism 2, the lifting cylinder 213 drives the top rod 212 upward to ensure that there is a sufficient gap between the guide plate 22 and the wind turbine blade to ensure smooth movement of the guide mechanism 2. When the guide mechanism 2 moves to a designated position, the lifting cylinder 213 drives the top rod 212 down to a designated height, that is, the guide plate 22 is lowered to the designated height to guide the repair mechanism 4, so that the movement trajectory of the repair mechanism 4 is adapted to the shape of the wind turbine blade.

[0023] Reference Figure 3 、 Figure 4 As shown, the repair frame 3 is slidably arranged on the upper part of the wind turbine blade along the length direction of the guide plate 22, and the length direction of the repair frame 3 is consistent with the width direction of the wind turbine blade. A guide rod 214 is arranged between the two bottom rods 211 on the same side of the wind turbine blade. A guide hole is opened on the repair frame 3 and is slidably connected to the guide rod 214. A roller 32 is provided at the bottom of the repair frame 3. The guide rod 214 can limit the moving direction of the repair frame 3, so that the repair frame 3 can move a specified distance along the length direction of the wind turbine blade after each repair to facilitate continued repair of the next position.

[0024] Reference Figure 5 、 Figure 6 As shown, the repair mechanism 4 includes a first repair seat 41 and a second repair seat 42. The first repair seat 41 and the second repair seat 42 are both slidably mounted on the repair frame 3 along the length direction of the repair frame 3. A telescopic adjustment column 43 is vertically slidably connected to each of the first repair seat 41 and the second repair seat 42. A compression spring 431 is provided between the telescopic adjustment column 43 and the first repair seat 41 or the second repair seat 42. A ball 432 is provided at the top of the telescopic adjustment column 43, which can fit into the groove 221 of the guide plate 22. The bottom of the telescopic adjustment column 43 is provided with a material leveling scraper 433, which can fit into the wind turbine blade. The wind turbine blade is divided into multiple segments, and multiple guide plates 22 are correspondingly configured. When a specific segment of the wind turbine blade needs to be repaired, the corresponding guide plate 22 is installed between the multiple support rods 21, that is, it can guide the repair mechanism 4 above the portion of the wind turbine blade to be repaired, so that it can adapt to the shape of the corresponding segment of the wind turbine blade and make the movement trajectory of the repair mechanism 4 adapt to the shape of the wind turbine blade.

[0025] Reference Figure 3 、 Figure 4As shown, the repair frame 3 is equipped with a transverse movement component 31 for driving the first repair seat 41 to move. The first repair seat 41 is provided with a liquid supply mechanism 5 for supplying repair liquid to the wind turbine blade. The second repair seat 42 is provided with a connecting mechanism 7 for connecting with the first repair seat 41. When applying the repair liquid to the wind turbine blade, the second repair seat 42 is connected to the first repair seat 41 as a whole through the connecting mechanism 7. The repair liquid is supplied to the wind turbine blade through the liquid supply mechanism 5. Then, the transverse movement component 31 drives the first repair seat 41 and the second repair seat 42 to move back and forth synchronously along the length direction of the repair frame 3. The material-leveling scraper 433 located at the bottom of the first repair seat 41 and the second repair seat 42 can evenly apply the repair liquid to the wind turbine blade. It should be noted that the bottom of the material-leveling scraper 433 has a flexible portion to improve the fit between the material-leveling scraper 433 and the surface of the wind turbine blade. When the first repair seat 41 and the second repair seat 42 move in any direction, one of the scrapers 433 can scrape the repair liquid so that the repair liquid can enter the worn part of the wind turbine blade, and the other scraper 433 can block the repair liquid to prevent the repair liquid from flowing out of the repair area.

[0026] Reference Figure 4 As shown, the traverse assembly 31 includes a traverse motor 311, a lead screw 312, and a slide bar 313. A through slot is provided at the top of the repair frame 3 along its length, and the lead screw 312 and the slide bar 313 are both mounted in the through slot. The traverse motor 311 is mounted at one end of the repair frame 3 and can drive the lead screw 312 to rotate. The first repair seat 41 is provided with a threaded hole adapted for the lead screw 312 and a through hole adapted for the slide bar 313. The second repair seat 42 is provided with two through holes. When the lead screw 312 is rotated by the traverse motor 311, the first repair seat 41 can slide along the length of the repair frame 3. When the second repair seat 42 is connected to the first repair seat 41 via the connecting mechanism 7, it can move synchronously with the first repair seat 41. When the second repair seat 42 is not connected to the first repair seat 41, it will not move synchronously with the first repair seat 41.

[0027] Reference Figure 5 、 Figure 7As shown, the first repair seat 41 is also provided with an unwinding mechanism 6 for supplying fiber cloth, and the unwinding mechanism 6 includes an unwinding frame 61 rotatably arranged on the first repair seat 41, and a fiber cloth roll 62 is installed on the unwinding frame 61. The bottom of the second repair seat 42 is provided with a positioning mechanism 8 for fixing the position with the wind turbine blade, and the side of the second repair seat 42 close to the first repair seat 41 is provided with an abutment member 421 for abutting against the unwinding frame 61. The abutment member 421 includes a fixed block 4211, a connecting rod 4212 and an abutment block 4213. The fixed block 4211 is fixedly arranged on the second repair seat 42, the connecting rod 4212 is fixedly arranged on the side of the fixed block 4211 close to the first repair seat 41, and the abutment block 4213 is fixedly arranged on the connecting rod 4212 and an inclined surface is provided on the abutment block 4213. When the second repair seat 42 is in a connected state with the first repair seat 41, the inclined surface of the abutment block 4213 abuts against the unwinding rack 61 so that the fiber cloth roll 62 is in a suspended state; when the second repair seat 42 is separated from the first repair seat 41, the abutment member 421 disengages from the unwinding rack 61, and the unwinding rack 61 can rotate and make the fiber cloth roll 62 fit against the wind turbine blade. When pasting the fiber cloth, the free end of the fiber cloth roll 62 is pulled toward the direction close to the second repair seat 42, and then the free end of the fiber cloth roll 62 is pressed against the wind turbine blade through the positioning mechanism 8, and the positioning effect of the connecting mechanism 7 on the first repair seat 41 and the second repair seat 42 is released. The transverse movement component 31 is started to drive the first repair seat 41 to move away from the second repair seat 42, and the abutment 421 is disengaged from the unwinding rack 61. The unwinding rack 61 rotates to fit with the wind turbine blade and can unwind the fiber cloth roll 62 during subsequent movement. The material scraper 433 at the bottom of the first repair seat 41 can continue to compact the fiber cloth during the movement so that the fiber cloth fits on the wind turbine blade.

[0028] Reference Figure 6As shown, the liquid supply mechanism 5 includes a liquid supply cylinder 51, an infusion pump 52, an infusion tube 53, and a flaring bucket 54. A placement seat 55 is provided on one side of the first repair seat 41. The liquid supply cylinder 51 is fixedly mounted on the placement seat 55. The infusion pump 52 is provided at the bottom end of the liquid supply cylinder 51. The infusion tube 53 is connected to the outlet end of the infusion pump 52. The bottom end of the infusion tube 53 passes through the first repair seat 41 and extends to the bottom of the first repair seat 41. The flaring bucket 54 is provided at the bottom end of the infusion tube 53. The repair liquid in the liquid supply cylinder 51 is transported to the infusion tube 53 by the infusion pump 52, and flows out of the flaring bucket 54 in a strip shape onto the wind turbine blade. The movement of the material-splitting scraper 433 then allows the repair liquid to be evenly applied to the wind turbine blade. The flaring bucket 54 is connected to the infusion tube 53 through a flexible bellows 56. A connecting plate 57 is provided between the flaring bucket 54 and the material-leveling scraper 433 at the bottom of the first repair seat 41, so that the outlet end of the flaring bucket 54 can change with the height of the material-leveling scraper 433, thereby adapting to the changes in height of different positions on the wind turbine blade and ensuring the uniformity of material supply.

[0029] Reference Figure 5 、 Figure 7 As shown, the connecting mechanism 7 includes a rotating ring 71 and a rotating assembly 72 for driving the rotating ring 71 to rotate, the rotating ring 71 is provided with a claw 711, and the first repair seat 41 is provided with a clamping block 411 for the claw 711 to be clamped; the rotating assembly 72 includes a rotating motor 721, a driving gear 722 and a driven gear ring 723, and the second repair seat 42 is provided with a motor seat 724, the rotating motor 721 is fixedly set on the motor seat 724, the driving gear 722 is fixedly connected to the output shaft of the rotating motor 721, and the driven gear ring 723 is coaxially connected to the rotating ring 71 and rotates with the second repair seat 42. By rotating the motor 721 to drive the driving gear 722 to rotate, the driven gear ring 723 rotates under the engagement of the driving gear 722 and drives the rotating ring 71 to rotate, so that the claw 711 is clamped on the clamping block 411, thereby fixing the relative positions of the first repair seat 41 and the second repair seat 42; the positioning mechanism 8 includes a positioning electric cylinder 81 arranged at the bottom end of the telescopic adjustment column 43, and the piston rod of the positioning electric cylinder 81 is connected to the positioning block 82; the second repair seat 42 is provided with a touch switch 83 for starting the positioning electric cylinder 81, and the driving gear 722 is driven to rotate in the opposite direction by the rotating motor 721. The driven gear ring 723 rotates in the opposite direction and drives the claw 711 to rotate until it disengages from the clamping block 411, and continues to rotate until the claw 711 abuts against the touch switch 83 and drives the positioning electric cylinder 81 to open, so that the positioning block 82 can move downward and press the fiber cloth onto the wind turbine blade.

[0030] Reference Figure 7As shown, the unwinding mechanism 6 also includes a pressing member 63, which is fixedly arranged on the bottom surface of the first repair seat 41 at one end away from the first repair seat 41. The pressing member 63 includes a fixing portion 631 and a pressing portion 632. The fixing portion 631 is fixedly connected to the first repair seat 41, and the pressing portion 632 is located below the fixing portion 631 and is connected to the fixing portion 631 via a plurality of spring leaves 633. The bottom surface of the pressing portion 632 is provided with an arc-shaped groove that matches the shape of the fiber cloth roll 62. When the unwinding frame 61 drives the fiber cloth roll 62 to be in a suspended state, the pressing portion 632 can press on the fiber cloth roll 62 to prevent the fiber cloth roll 62 from loosening and automatically unwinding during the application of the repair fluid.

[0031] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A wind turbine blade repair device, characterized in that: include: A plurality of bases (1), wherein the plurality of bases (1) are spaced apart and distributed on the ground, and each base (1) is provided with a placement slot (11) for placing a wind turbine blade; A guide mechanism (2), the guide mechanism (2) being slidably arranged on the ground along the arrangement direction of the base (1) and being located outside the base (1), the guide mechanism (2) comprising a plurality of support rods (21) and a guide plate (22) detachably arranged between the plurality of support rods (21), the bottom of the guide plate (22) being provided with a groove (221) adapted to the shape of a specified segment of a wind turbine blade; A repair frame (3), wherein the repair frame (3) is slidably arranged on the upper part of the wind turbine blade along the length direction of the guide plate (22), and the length direction of the repair frame (3) is consistent with the width direction of the wind turbine blade; A repair mechanism (4), the repair mechanism (4) comprising a first repair seat (41) and a second repair seat (42), the first repair seat (41) and the second repair seat (42) both being slidably arranged on the repair frame (3) along the length direction of the repair frame (3), a telescopic adjustment column (43) being slidably connected in the vertical direction in the first repair seat (41) and the second repair seat (42), a compression spring (431) being arranged between the telescopic adjustment column (43) and the first repair seat (41) or the second repair seat (42), a ball (432) being arranged at the top end of the telescopic adjustment column (43) being able to fit into the groove (221) of the guide plate (22), and a material leveling scraper (433) being arranged at the bottom end of the telescopic adjustment column (43) being able to fit into the wind turbine blade; The first repair seat (41) is provided with a liquid supply mechanism (5) for supplying repair liquid to the wind turbine blade and a reeling mechanism (6) for supplying fiber cloth, the repair frame (3) is provided with a transverse movement component (31) for driving the first repair seat (41) to move, and the second repair seat (42) is provided with a connecting mechanism (7) for connecting with the first repair seat (41) and a positioning mechanism (8) for fixing the position with the wind turbine blade.

2. The wind turbine blade repair device according to claim 1, characterized in that: The connecting mechanism (7) comprises a rotating ring (71) and a rotating assembly (72) for driving the rotating ring (71) to rotate; the rotating ring (71) is provided with a clamping claw (711); the first repair seat (41) is provided with a clamping block (411) for the clamping claw (711) to be clamped; the positioning mechanism (8) comprises a positioning electric cylinder (81) provided at the bottom end of the telescopic adjustment column (43); the piston rod of the positioning electric cylinder (81) is connected with a positioning block (82); the second repair seat (42) is provided with a touch switch (83) for starting the positioning electric cylinder (81); the clamping claw (711) rotates to disengage from the clamping block (411) and can abut against the touch switch (83) to drive the positioning electric cylinder (81) to start.

3. The wind turbine blade repair device according to claim 1, characterized in that: The unwinding mechanism (6) includes an unwinding frame (61) rotatably arranged on the first repair seat (41), a fiber cloth roll (62) is installed on the unwinding frame (61), and abutment members (421) are provided on both sides of the second repair seat (42). When the second repair seat (42) is in a connected state with the first repair seat (41), the abutment members (421) abut against the unwinding frame (61) so that the fiber cloth roll (62) is in a suspended state; when the second repair seat (42) is separated from the first repair seat (41), the abutment members (421) are disengaged from the unwinding frame (61), and the unwinding frame (61) can rotate to make the fiber cloth roll (62) fit the wind turbine blade.

4. The wind turbine blade repair device according to claim 3, characterized in that: The abutment member (421) comprises a fixed block (4211), a connecting rod (4212) and an abutment block (4213); the fixed block (4211) is fixedly arranged on the second repair seat (42); the connecting rod (4212) is fixedly arranged on a side of the fixed block (4211) close to the first repair seat (41); the abutment block (4213) is fixedly arranged on the connecting rod (4212) and an inclined surface is provided on the abutment block (4213).

5. The wind turbine blade repair device according to claim 2, characterized in that: The rotating assembly (72) comprises a rotating motor (721), a driving gear (722) and a driven gear ring (723); a motor seat (724) is provided on the second repair seat (42); the rotating motor (721) is fixedly provided on the motor seat (724); the driving gear (722) is fixedly connected to the output shaft of the rotating motor (721); the driven gear ring (723) is coaxially connected to the rotating ring (71) and is rotatably matched with the second repair seat (42).

6. The wind turbine blade repair device according to claim 1, characterized in that: The liquid supply mechanism (5) comprises a liquid supply cylinder (51), an infusion pump (52), an infusion tube (53) and a flaring bucket (54); a placement seat (55) is provided on one side of the first repair seat (41); the liquid supply cylinder (51) is fixedly arranged on the placement seat (55); the infusion pump (52) is arranged at the bottom end of the liquid supply cylinder (51); the infusion tube (53) is connected to the outlet end of the infusion pump (52); the bottom end of the infusion tube (53) passes through the first repair seat (41) and extends to the lower part of the first repair seat (41); and the flaring bucket (54) is arranged at the bottom end of the infusion tube (53).

7. The wind turbine blade repair device according to claim 6, characterized in that: The flaring bucket (54) is connected to the liquid infusion pipe (53) through a flexible bellows (56), and a connecting plate (57) is provided between the flaring bucket (54) and the material leveling scraper (433) at the bottom of the first repair seat (41).

8. The wind turbine blade repair device according to claim 1, characterized in that: The invention also includes a transmission mechanism (9), which is arranged at the bottom of the guide mechanism (2) and below the ground. The transmission mechanism (9) includes two transmission chains (91), sprockets (92) are arranged at both ends of the transmission chain (91), a connecting shaft (93) is arranged between the two sprockets (92) on the same side, and a transmission motor (94) is arranged at the end of one of the connecting shafts (93). The plurality of support rods (21) can be detachably arranged on the transmission chain (91).

9. The wind turbine blade repair device according to claim 1, characterized in that: The support rod (21) comprises a bottom rod (211) and a top rod (212); the bottom rod (211) is detachably arranged on the conveying chain (91); the top rod (212) is telescopically arranged on the top of the bottom rod (211); a lifting electric cylinder (213) for driving the top rod (212) to move up and down is arranged on the bottom rod (211); and the guide plate (22) is detachably connected to the top rod (212).

10. The wind turbine blade repair device according to claim 9, characterized in that: A guide rod (214) is provided between two bottom rods (211) located on the same side of the wind turbine blade; a guide hole is provided on the repair frame (3) and is slidably connected to the guide rod (214); and a roller (32) is provided at the bottom of the repair frame (3).

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