A wind turbine blade inspection, positioning and repair equipment

Abstract

The present invention discloses a wind turbine blade inspection, positioning and repair device, which belongs to the technical field of wind turbine blade inspection and repair, and includes a drive unit and a detection unit. The drive unit is composed of two groups of drive rings. The drive rings are evenly provided with drive members arranged in a ring shape. Adjacent drive members are connected by a strong rubber belt, the drive members on one side are connected by a plug-in assembly, and the drive members on the two groups of drive units are connected by a drive assembly. The present invention rotates the wind turbine blade to be inspected to a position parallel to the wind turbine frame in advance, installs the drive unit on the frame for continuous downward movement, installs the detection unit on the wind turbine blade, and uses the drive unit to drive the detection unit to move. Therefore, the paint surface on the wind turbine blade can be inspected by moving the detection unit without manual inspection, thereby achieving the effect of fast and effective inspection and positioning of the wind turbine blade.

Description

Technical Field

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

[0002] Wind power generation converts wind kinetic energy into mechanical energy, and then converts that mechanical energy into electrical energy. The principle of wind power generation is to use wind power to rotate windmill blades, then use a speed increaser to increase the speed of rotation, prompting the generator to generate electricity. According to current windmill technology, power generation can begin with a breeze of approximately three meters per second (a gentle breeze). Wind power generation is becoming a global trend because it requires no fuel and does not produce radiation or air pollution. The equipment required for wind power generation is called a wind turbine. This wind turbine is generally divided into three parts: the rotor (including the tail vane), the generator, and the tower.

[0003] During the wind power generation process, the wind turbine blades are the most vulnerable to natural disasters. They will be damaged or the paint will fall off under the action of extreme weather or lightning. Among them, the tail of the wind turbine blade is the most vulnerable to damage. For some minor problems, the existing measure is to use manual suspension to repair the blades. For some larger problems, the entire blade needs to be removed for maintenance. Before that, the wind turbine blades need to be inspected and the problem needs to be located. The current inspection method mainly relies on manual visual judgment, which is extremely dangerous and the effect is not ideal. For this reason, a wind turbine blade inspection, positioning and repair equipment is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the existing maintenance method mainly relies on manual visual judgment, which is extremely dangerous and the effect is not ideal, and to propose a wind turbine blade maintenance, positioning and repair equipment.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A wind turbine blade inspection, positioning, and repair device includes a drive unit and a detection unit. The drive unit comprises two groups of drive rings, each of which is evenly provided with drive members arranged in a ring shape. Adjacent drive members are connected by a strong rubber belt. The drive members on one side are connected by a plug-in assembly. The drive members on the two groups of drive units are connected by a drive assembly.

[0007] The detection unit includes two arc-shaped detection platforms arranged opposite to each other in an arc shape, one end of the arc-shaped detection platform is provided with an edge limit assembly, the back of the arc-shaped detection platform is provided with an arc-shaped mounting bar, the arc-shaped mounting bar is densely provided with mounting openings, a vibration sensor is provided in the mounting opening, the output end of the vibration sensor is connected to a plurality of detection end columns through a connecting plate, the end of the detection end column extends outward through the arc-shaped detection platform, and a detection ball is rotatably provided;

[0008] The arc-shaped detection platform is connected to two driving rings through a support rod assembly, and the support rod assemblies are connected through tension springs.

[0009] Preferably, the driving member is arranged in an arc shape, and the inner side wall thereof is densely covered with spherical grooves, and rolling balls for reducing friction are arranged in the spherical grooves.

[0010] Preferably, the plug-in assembly includes a through opening on the driving member on the side away from the detection unit, the through opening divides the driving member into two, and a T-shaped socket is provided at the through opening, and an "I"-shaped assembly rod is provided in the T-shaped socket.

[0011] Preferably, the drive assembly includes two dual-axis motors arranged between two groups of drive ring members, the dual-axis motors are connected to the drive members through a plurality of connecting support columns, and the output ends of the dual-axis motors are connected to drive worms.

[0012] Preferably, a transmission port is opened in the driving member located at the dual-axis motor, the inner wall of the transmission port is rotatably connected to a rotating shaft, a driving roller is fixedly connected to the rotating shaft, and the outer wall of the rotating shaft is fixedly connected to a driving worm wheel fixedly connected to the driving worm.

[0013] Preferably, the edge limit assembly includes a connecting block fixedly connected to one end of the arc-shaped detection platform, a rectangular force storage groove is opened on the connecting block, a guide column is fixedly connected to the inner wall of the rectangular force storage groove, a force storage block is sleeved on the guide column, the force storage block is connected to the inner wall of the rectangular force storage groove through a force storage resistance spring sleeved on the guide column, the force storage block is connected to a connecting side rod, and the connecting side rod is connected to a limiting pulley via a rotating shaft.

[0014] Preferably, the support rod assembly includes an assembly plate arranged on two symmetrically arranged driving members, the assembly plate is connected to a rotating support rod via a rotating member, and the other end of the rotating support rod is fixedly connected to the side wall of the arc-shaped detection platform.

[0015] Preferably, there are two tension springs, which are horizontally arranged between two rotating support rods. A hanging hook is provided on the rotating support rod, and both ends of the tension spring are detachably connected to the hanging hooks at both ends.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention rotates the wind turbine blade to be inspected to a position parallel to the wind turbine frame in advance, installs a driving unit on the frame to move continuously downward, installs a detection unit on the wind turbine blade, and uses the driving unit to drive the detection unit to move, thereby achieving the effect of inspecting the paint surface on the wind turbine blade through the movement of the detection unit without the need for manual inspection.

[0018] 2. The present invention constantly applies pressure to the arc-shaped detection platform on the wind turbine blade by using a tension spring on a rotating support rod, so that the detection end column on the arc-shaped detection platform contacts the paint surface during movement. The unevenness of the paint surface when the paint surface is broken or missing is utilized to effectively identify the flatness of the paint surface using a sensor, thereby achieving the effect of fast and effective detection and positioning of the wind turbine blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a side structural diagram of a wind turbine blade inspection, positioning and repair device proposed by the present invention;

[0020] Figure 2 This is a structural diagram of a driving unit and a detection unit in a wind turbine blade inspection, positioning and repair device proposed by the present invention;

[0021] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at B in the middle;

[0023] Figure 5 This is a schematic diagram of the top view of a wind turbine blade inspection, positioning and repair device proposed by the present invention;

[0024] Figure 6 This is a schematic structural diagram of the deployment of a detection unit in a wind turbine blade inspection, positioning, and repair device proposed by the present invention;

[0025] Figure 7 This is a schematic diagram of the installation structure of the arc-shaped mounting bar in the wind turbine blade inspection, positioning and repair equipment proposed by the present invention.

[0026] In the figure: 1. Driving part; 2. Strong rubber belt; 3. Arc detection table; 4. Arc mounting strip; 5. Vibration sensor; 6. Connecting plate; 7. Detection end column; 8. Detection ball; 9. Tension spring; 10. Rolling ball; 11. T-shaped socket; 12. Assembly rod; 13. Dual-axis motor; 14. Connecting support column; 15. Driving worm; 16. Rotating shaft; 17. Driving roller; 18. Driving worm gear; 19. Connecting block; 20. Guide column; 21. Force storage block; 22. Connecting side rod; 23. Limiting pulley; 24. Assembly plate; 25. Rotating part; 26. Rotating support rod; 27. Suspension hook. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] Example

[0029] Reference Figure 1-7 A wind turbine blade inspection, positioning and repair equipment includes a drive unit and a detection unit. The drive unit includes two groups of drive rings. The drive rings are evenly provided with drive members 1 arranged in a ring shape. The drive members 1 are arranged in an arc shape, and their inner side walls are densely covered with spherical grooves. The spherical grooves are provided with rolling balls 10 that reduce friction. The rolling balls 10 arranged on the inner side walls of the drive members 1 can achieve rolling, thereby achieving the effect of reducing friction when the drive rings move.

[0030] Adjacent driving members 1 are connected by strong rubber belts 2, and the setting of the strong rubber belts 2 is designed according to the truncated cone-shaped structure of the wind turbine frame which is narrow at the top and wide at the bottom. The advantage of such a design is that pressure can be applied to the driving member 1 close to the frame at any position to ensure that the driving member 1 can climb and walk on the frame, and the driving member 1 on one side can be connected by a plug-in assembly. Furthermore, the plug-in assembly includes a through opening on the driving member 1 on the side away from the detection unit, and the through opening divides the driving member 1 into two, and a T-shaped socket 11 is provided at the through opening, and an "I"-shaped assembly rod 12 is provided in the T-shaped socket 11.

[0031] A further advantage of adopting the above method is that, since the driving ring needs to be mounted on the frame of the wind power generation equipment during use, by setting the assembly plug 12, the two driving parts 1 divided into two parts can be combined into a complete structure according to the assembly plug 12 during actual use, so as to ensure the mounting of the driving ring and the frame and ensure the walking effect.

[0032] The driving members 1 located on the two groups of driving units are connected through a driving assembly; further, the driving assembly includes two dual-axis motors 13 arranged between the two groups of driving ring members, and the dual-axis motors 13 can output torque at both ends. This is a prior art and will not be described in detail here. The dual-axis motor 13 is connected to the driving member 1 through multiple connecting support columns 14, and the output end of the dual-axis motor 13 is connected to a driving worm 15. A transmission port is opened in the driving member 1 located at the dual-axis motor 13, and the inner wall of the transmission port is rotatably connected to a rotating shaft 16, and a driving roller 17 is fixedly connected to the rotating shaft 16. The outer wall of the rotating shaft 16 is fixedly connected to a driving worm wheel 18 fixedly connected to the driving worm 15.

[0033] Under the action of the dual-axis motor 13, the driving worm 15 connected to its two ends will drive the driving worm wheel 18 connected to it to rotate. During the rotation of the driving worm wheel 18, the driving roller 17 will rotate. The driving roller 17 is made of rubber material with maximum friction, which can drive the equipment to move upward.

[0034] The detection unit includes two arc-shaped detection platforms 3 arranged opposite to each other in an arc shape, and an edge limit assembly is provided at one end of the arc-shaped detection platform 3. Furthermore, the edge limit assembly includes a connecting block 19 fixedly connected to one end of the arc-shaped detection platform 3, and a rectangular force storage groove is opened on the connecting block 19. The inner wall of the rectangular force storage groove is fixedly connected to a guide column 20, and a force storage block 21 is sleeved on the guide column 20. The force storage block 21 is connected to the inner wall of the rectangular force storage groove through a force storage resistance spring sleeved on the guide column 20. The force storage block 21 is connected to a connecting side rod 22, and the connecting side rod 22 is connected to a limiting pulley 23 through a rotating shaft.

[0035] It is worth noting that when the detection unit moves on the wind turbine blade, the positioning effect with the wind turbine blade cannot be ensured. Edge limit components are provided on both opposite sides of the arc-shaped detection platform 3. After installation, under the action of the stored force resistance spring, the connecting side rod 22 will always apply pressure to the limit pulley 23, so as to squeeze the limit pulley 23 on the two end edges of the wind turbine blade, thereby ensuring the stability of the arc-shaped detection platform 3 during the movement.

[0036] An arc-shaped mounting bar 4 is provided on the back of the arc-shaped detection platform 3. The arc-shaped mounting bar 4 is densely provided with mounting openings. A vibration sensor 5 is provided in the mounting opening. The output end of the vibration sensor 5 is connected to a plurality of detection end columns 7 through a connecting plate 6. The end of the detection end column 7 extends outward through the arc-shaped detection platform 3 and is rotatably provided with a detection ball 8.

[0037] It should be noted that the vibration sensor 5 is an existing technology. It can adjust the vibration amplitude to ensure accuracy and thus trigger. It will not be described in detail here. It is connected to a control system for alarm. The advantage of such a setting in this scheme is that when the paint surface of the wind turbine blade is damaged during the maintenance process, the surface of the blade will be uneven, which makes the detection end column 7 vibrate due to the unevenness when moving to this place. The vibration will be received by the vibration sensor 5 as a signal, thereby determining the location of the fault in the wind turbine blade and achieving the effect of locating the damaged location.

[0038] The arc-shaped detection platform 3 is connected to the two driving ring members through a support rod assembly, and the support rod assemblies are connected by tension springs 9; further, the support rod assembly includes an assembly plate 24 arranged on two symmetrically arranged driving members 1, and the assembly plate 24 is connected to a rotating support rod 26 through a rotating member 25. The other end of the rotating support rod 26 is fixedly connected to the side wall of the arc-shaped detection platform 3. There are two tension springs 9, which are horizontally arranged between the two rotating support rods 26. A hanging hook 27 is provided on the rotating support rod 26. The two ends of the tension spring 9 are respectively detachably connected to the hanging hooks 27 at both ends.

[0039] It is worth noting that after installation, the tension spring 9 is still in a stretched state. In this case, the tension spring 9 will apply pressure to the rotating support rod 26, and drive the rotating support rod 26 to apply pressure to the arc detection platform 3, so that the arc detection platform 3 always has pressure on the wind turbine blade.

[0040] To use the present invention, the wind turbine blade that needs to be inspected is first rotated to a position parallel to the wind turbine frame, that is, perpendicular to the ground. At this time, the staff reaches the top of the tower to install the equipment, installs the drive unit on the wind turbine frame, and sets the detection unit on the wind turbine blade (at a position that matches its arc shape). At this time, the dual-axis motor 13 set on the drive unit is controlled. Under the power of the motor, the drive worm 15 drives the drive worm gear 18 connected to it to rotate. During the rotation of the drive worm gear 18, the drive roller 17 is rotated, wherein the drive roller 17 is made of rubber material with maximum friction, which can drive the equipment to move downward, and during the downward movement, it will pass through the support The rod assembly drives the two arc-shaped detection platforms 3 connected to it to move. During the movement of the arc-shaped detection platform 3, the detection ball 8 at the end of the detection end column 7 arranged on the inner wall of the arc-shaped detection platform 3 will always be in contact with the surface of the wind turbine blade. During the contact movement, the paint surface on the surface of the wind turbine blade will be effectively detected. When the detection end column 7 vibrates due to the uneven paint surface, the vibration sensor 5 connected to it through the connecting plate 6 will be triggered, thereby realizing the detection of the flatness of the paint surface at that location, and the triggered vibration sensor 5 can achieve the effect of positioning the wind turbine blade, so that both sides of the wind turbine blade can be detected at the same time, ensuring the quality of the detection while also ensuring the safety of the detection personnel.

[0041] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A wind turbine blade inspection, positioning and repair device, comprising a driving unit and a detection unit, characterized in that: The driving unit comprises two groups of driving annular members, wherein the driving annular members are evenly provided with driving members (1) arranged in an annular shape, adjacent driving members (1) are connected by a strong rubber belt (2), the driving members (1) located on one side are connected by a plug-in assembly, and the driving members (1) located on the two groups of driving units are connected by a driving assembly; The detection unit comprises two arc-shaped detection platforms (3) arranged opposite to each other in an arc shape, one end of the arc-shaped detection platform (3) is provided with an edge limit assembly, the back of the arc-shaped detection platform (3) is provided with an arc-shaped mounting bar (4), the arc-shaped mounting bar (4) is densely provided with mounting openings, a vibration sensor (5) is provided in the mounting opening, the output end of the vibration sensor (5) is connected to a plurality of detection end columns (7) through a connecting plate (6), the end of the detection end column (7) passes through the arc-shaped detection platform (3) and extends outward, and a detection rolling ball (8) is rotatably provided. The arc-shaped detection platform (3) is connected to two driving ring members via a support rod assembly, and the support rod assemblies are connected via a tension spring (9).

2. The wind turbine blade inspection, positioning and repair equipment according to claim 1, characterized in that: The driving member (1) is arranged in an arc shape, and its inner side wall is densely covered with spherical grooves, and rolling balls (10) for reducing friction are arranged in the spherical grooves.

3. The wind turbine blade inspection, positioning and repair equipment according to claim 1, characterized in that: The plug-in assembly comprises a through opening on a driving member (1) on a side away from the detection unit, the through opening dividing the driving member (1) into two, and a T-shaped socket (11) is provided at the through opening, wherein an "I"-shaped assembly plug rod (12) is provided in the T-shaped socket (11).

4. The wind turbine blade inspection, positioning and repair equipment according to claim 1, characterized in that: The drive assembly comprises two dual-axis motors (13) arranged between two groups of drive ring members, the dual-axis motors (13) being connected to the drive member (1) via a plurality of connecting support columns (14), and the output ends of the dual-axis motors (13) being connected to a drive worm (15).

5. The wind turbine blade inspection, positioning and repair equipment according to claim 4, characterized in that: A transmission port is provided in the driving member (1) located at the dual-axis motor (13); a rotating shaft (16) is rotatably connected to the inner wall of the transmission port; a driving roller (17) is fixedly connected to the rotating shaft (16); and a driving worm wheel (18) fixedly connected to the driving worm (15) is fixedly connected to the outer wall of the rotating shaft (16).

6. The wind turbine blade inspection, positioning and repair equipment according to claim 1, characterized in that: The edge limiting assembly comprises a connecting block (19) fixedly connected to one end of the arc detection platform (3); a rectangular force storage groove is provided on the connecting block (19); a guide column (20) is fixedly connected to the inner wall of the rectangular force storage groove; a force storage block (21) is sleeved on the guide column (20); the force storage block (21) is connected to the inner wall of the rectangular force storage groove via a force storage resistance spring sleeved on the guide column (20); the force storage block (21) is connected to a connecting side rod (22); and the connecting side rod (22) is connected to a limiting pulley (23) via a rotating shaft.

7. The wind turbine blade inspection, positioning and repair equipment according to claim 1, characterized in that: The support rod assembly comprises an assembly plate (24) arranged on two symmetrically arranged driving members (1); the assembly plate (24) is connected to a rotating support rod (26) via a rotating member (25); the other end of the rotating support rod (26) is fixedly connected to the side wall of the arc-shaped detection platform (3).

8. The wind turbine blade inspection, positioning and repairing equipment according to claim 1, characterized in that: There are two tension springs (9) which are horizontally arranged between two rotating support rods (26). A hanging hook (27) is provided on the rotating support rod (26). The two ends of the tension spring (9) are detachably connected to the hanging hooks (27) at both ends.

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