Automatic detection device for fan blades for wind power generation

Abstract

The invention discloses an automatic detection device for a fan blade for wind power generation in the field of wind power generation, and the device comprises a measurement bottom supporting table and a transverse movement servo transmission mechanism which is installed at one side above the measurement bottom supporting table, and a sliding part on the transverse movement servo transmission mechanism is fixedly connected with a sliding table plate. And a U-shaped sliding seat is arranged above the sliding table plate. According to the wind driven generator blade detection device, when wind driven generator blades are detected, adsorption connection of the sliding table plate and the U-shaped sliding seat can be achieved by arranging the second annular magnet block and the first annular magnet block, the U-shaped sliding seat assembly can be taken down by forcibly lifting the U-shaped sliding seat assembly upwards, rapid installation of the wind driven generator blades is facilitated, and after installation is completed, the detection efficiency is improved. The U-shaped sliding seat assembly can be rapidly installed, the second annular magnet block has a certain movable gap in the movable supporting hole, when the detection assembly is touched by external force, the detection assembly can slide towards one side to achieve force unloading, and safety is higher.

Description

Technical Field

[0001] The invention relates to the field of wind power generation, in particular to an automatic detection device for fan blades used in wind power generation. Background Art

[0002] Wind turbines are often installed in areas with relatively harsh environments, and cracks, sand holes and other defects may appear on the blades of the generators. If these damages are not handled in time, they will directly affect the safe operation of the wind turbine and the economic benefits of the wind farm. At present, the detection of surface defects of wind turbine blades is mostly carried out by placing them on a tooling and detecting them manually or with a CCD lens. However, the detection components and the main body of the equipment in the existing detection equipment are not removable, and the positioning and placement of the blades are not utilized, which is prone to interference. Therefore, the blades must be hoisted at a higher height, which affects the efficiency. Moreover, different blade fixing tools are mostly locked by screws during installation, which is inefficient. At the same time, the blades are fixed and placed, and the suspended state of the blades during operation cannot be simulated. Therefore, those skilled in the art provide an automatic detection device for blades used for wind power generation to solve the problems raised in the above background technology. Summary of the invention

[0003] The object of the present invention is to provide an automatic detection device for fan blades used for wind power generation to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: An automatic detection device for fan blades used for wind power generation, comprising a measuring bottom support platform and a lateral movement servo transmission mechanism installed on one side above the measuring bottom support platform, a sliding member on the lateral movement servo transmission mechanism is fixedly connected with a sliding table plate, a U-shaped slide is arranged above the slide plate, and adjusting push rods are fixedly connected to the two opposite side walls of the U-shaped slide, and the telescopic end of the adjusting push rod is fixedly connected to a movable plate after passing through the U-shaped slide, and the bottom of the movable plate is slidably connected with a sliding rod fixedly installed on the two inner walls of the U-shaped slide, and the middle of the side walls of the two movable plates facing each other are fixedly connected with a distance measuring sensor, and CCD detection cameras fixedly connected to the movable plates are arranged on both sides of the distance measuring sensor; Movable support holes are opened at the four corners above the slide plate, and an annular magnet block 1 is fixedly connected to the bottom of the movable support hole. An annular magnet block 2 is fixedly connected to the four corners below the U-shaped slide seat and is inserted into the movable support hole and is close to the annular magnet block 1. The magnetic properties of the annular magnet block 2 are opposite to those of the annular magnet block 1.

[0005] As a further solution of the present invention: the diameter of the annular magnet block 2 is half of the diameter of the annular magnet block 1.

[0006] As a further solution of the present invention: one end of the lead screw of the lateral movement servo transmission mechanism is connected to a sliding motor via a key, and a plurality of supporting leg plates are arranged at equal intervals at the bottom of the measuring bottom support platform.

[0007] As a further solution of the present invention: a reduction gearbox is fixedly connected to one end of the lateral moving servo transmission mechanism located above the measuring bottom support platform, a rotating motor is connected to the input shaft of the reduction gearbox via a coupling, and a connecting flange is welded to the output shaft of the reduction gearbox.

[0008] As a further solution of the present invention: a table top is fixedly connected to the top of the reduction gearbox, an operation controller is placed above the table top, a side support plate is fixedly connected to an edge portion below the table top, and a tool box is fixedly placed above the table top on one side of the operation controller.

[0009] As a further solution of the present invention: the outer periphery of the output shaft of the reduction gearbox is rotatably connected to a bearing seat through a bearing, the bottom of the bearing seat is fixedly connected to the measuring bottom support platform, a quick-release flange is provided on one side of the connecting flange, and a positioning shaft core is integrally formed with the middle part of one side wall of the quick-release flange.

[0010] As a further solution of the present invention: a cross slot is provided on one side wall of the connecting flange and the quick-release flange, the slot is an isosceles trapezoidal structure, and a plurality of fan blade mounting flange holes are provided at equal intervals on the periphery of the quick-release flange.

[0011] As a further solution of the present invention: a quick-connect assembly for quick installation is provided inside the connecting flange and the slot on the quick-release flange, and the quick-connect assembly includes a plug-in limit card block 1 and a plug-in limit card block 2. The plug-in limit card block 1 has two and is symmetrically arranged on both sides of the plug-in limit card block 2.

[0012] As a further solution of the present invention: a through hole is provided in the middle part of the second plug-in limit card block and located on one side of the first plug-in limit card block, one end of the first plug-in limit card block is fixedly connected with a plug-in column inserted into the through hole, the other end of the first plug-in limit card block is provided with a threaded hole, and the two plug-in columns are fixedly connected with adsorption magnets with opposite magnetic properties at one end facing each other.

[0013] As a further solution of the present invention: the rotating motor and the sliding motor are electrically connected to the operation controller through wires, and the adjusting push rod, the distance measuring sensor and the CCD detection camera are electrically connected to the operation controller through wires.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. When inspecting the blades of a wind turbine generator, the present invention can realize the adsorption connection between the slide plate and the U-shaped slide seat by setting the annular magnet block 2 and the annular magnet block 1, and can realize the removal of the U-shaped slide seat assembly by pulling it upward with force, which is convenient for the rapid installation of the fan blades of the wind turbine generator. After the installation is completed, the U-shaped slide seat assembly can be quickly installed, and the annular magnet block 2 has a certain movable gap inside the movable support hole, so that when the detection assembly is touched by an external force, it can slide to one side to realize force unloading, which is safer; 2. The present invention realizes the rapid connection and fixation of the connecting flange and the quick-mounting flange through the quick-connect assembly, thereby improving the replacement efficiency of the quick-mounting flange, and thus ensuring that when different types of fan blades are tested, the docking quick-mounting flanges can be quickly replaced, which is more efficient; 3. The present invention fixes the fan blade on a quick-release flange for detection, and suspends one end of the fan blade in the air, thereby effectively simulating the state of the fan blade during operation. Appearance detection is performed in the suspended state, and the defects of the fan blade can be magnified under the action of gravity, which is more conducive to the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a left side view of the U-shaped sliding seat in the present invention; Figure 3 A cross-sectional view of the connection portion between the U-shaped slide seat and the slide plate in the present invention; Figure 4 For the present invention Figure 3 A partial enlarged view of the middle A; Figure 5 It is a partial view of the output shaft of the reduction gearbox in the present invention; Figure 6 It is a right side view of the quick-install flange in the present invention; Figure 7 It is a structural diagram of the quick-connect assembly in the present invention; Figure 8 is a cross-sectional view of the quick-connect assembly of the present invention; Fig. 9 For the present invention Figure 8 A partial enlarged view of point B in the middle.

[0016] In the figure: 1. Measuring bottom support platform; 2. Support leg plate; 3. Speed ​​reducer; 301. Output shaft; 4. Rotating motor; 5. Table top; 6. Operation controller; 7. Side support plate; 8. Tool box body; 9. Lateral movement servo transmission mechanism; 10. Slide plate; 1001. Movable support hole; 1002. Ring magnet block 1; 11. U-shaped slide seat; 1101. Ring magnet block 2; 12. Sliding motor; 13. Adjustment push rod; 14. Movable Board; 15. CCD detection camera; 16. Distance sensor; 17. Bearing seat; 18. Connection flange; 19. Quick-release flange; 1901. Fan blade mounting flange hole; 20. Positioning shaft core; 21. Quick-connect assembly; 2101. Plug-in limit card block 1; 2102. Plug-in limit card block 2; 21021. Through hole; 21011. Threaded hole; 21012. Plug-in column; 21013. Adsorption magnet block; 22. Slide rod; 23. Slot. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figures 1 to 9 In an embodiment of the present invention, an automatic detection device for fan blades for wind power generation includes a measuring bottom support platform 1 and a lateral movement servo transmission mechanism 9 installed on one side above the measuring bottom support platform 1, a sliding plate 10 is fixedly connected to the sliding member on the lateral movement servo transmission mechanism 9, a U-shaped slide 11 is arranged above the slide plate 10, and adjusting push rods 13 are fixedly connected to the opposite side walls of the U-shaped slide 11, and the telescopic end of the adjusting push rod 13 passes through the U-shaped slide 11 and is fixedly connected to a movable plate 14, and the bottom of the movable plate 14 is slidably connected to a sliding rod 22 fixedly installed on the two inner walls of the U-shaped slide 11, and the middle of the side walls of the two movable plates 14 facing each other are fixedly connected with a distance sensor 16, and both sides of the distance sensor 16 are provided with CCD detection cameras 15 fixedly connected to the movable plate 14; Movable support holes 1001 are opened at the four corners above the slide plate 10, and an annular magnet block 1002 is fixedly connected to the bottom of the movable support hole 1001. An annular magnet block 1101 inserted into the movable support hole 1001 and close to the annular magnet block 1002 is fixedly connected to the four corners below the U-shaped slide seat 11, and the magnetic properties of the annular magnet block 1101 are opposite to those of the annular magnet block 1002.

[0019] By adopting the above technical scheme, when inspecting the wind turbine blades, the slide plate 10 and the U-shaped slide 11 can be adsorbed and connected by setting the annular magnet block 1101 and the annular magnet block 1002, and the U-shaped slide 11 assembly can be removed by pulling it upward with force, which is convenient for the rapid installation of the wind turbine blades. After the installation is completed, the U-shaped slide 11 assembly can be quickly installed, and the annular magnet block 1101 has a certain movable gap inside the movable support hole 1001, so that when the detection assembly is touched by external force, it can slide to one side to unload the force, which is safer.

[0020] Among them, the diameter of the annular magnet block 1101 is half of the diameter of the annular magnet block 1002, which can ensure that the annular magnet block 1101 has a certain movable gap.

[0021] Among them, one end of the lead screw of the lateral movement servo transmission mechanism 9 is connected to a sliding motor 12 through a key, and the sliding motor 12 can drive the lateral movement servo transmission mechanism 9 to work, and then drive the sliding component to move laterally, which is convenient for automatic detection of fan blades. A plurality of supporting leg plates 2 are evenly spaced at the bottom of the measuring bottom support platform 1.

[0022] Among them, a reduction box 3 is fixedly connected to one end of the lateral movement servo transmission mechanism 9 above the measuring bottom support platform 1, and a rotating motor 4 is connected to the input shaft of the reduction box 3 through a coupling. A connecting flange 18 is welded to the output shaft 301 of the reduction box 3.

[0023] In the above technical solution, the power can be transmitted to the connecting flange 18 through the reduction box 3 by the rotating motor 4, thereby driving the connecting flange 18 to rotate, thereby realizing the rotation adjustment of the fan blades.

[0024] Among them, a table top 5 is fixedly connected to the top of the reduction box 3, an operation controller 6 is placed above the table top 5, a side support plate 7 is fixedly connected to an edge portion below the table top 5, and a tool box 8 is fixedly placed above the table top 5 on one side of the operation controller 6, and some fan blade installation tools are placed inside the tool box 8 for easy retrieval and storage.

[0025] Among them, the output shaft 301 of the reduction box 3 is rotatably connected to a bearing seat 17 through a bearing, the bottom of the bearing seat 17 is fixedly connected to the measuring bottom support platform 1, and a quick-release flange 19 is provided on one side of the connecting flange 18. A positioning shaft core 20 is integrally formed in the middle of one side wall of the quick-release flange 19. The bearing seat 17 can ensure the supporting rigidity of the output shaft 301, and the positioning shaft core 20 is used to provide positioning for the installation of the fan blades.

[0026] Among them, the connecting flange 18 and the quick-mount flange 19 are both provided with cross slots 23 on the side walls facing each other, and the slots 23 are isosceles trapezoidal structures. The periphery of the quick-mount flange 19 is provided with multiple fan blade mounting flange holes 1901 at equal intervals. The fan blade mounting flange holes 1901 on the quick-mount flange 19 can realize the rapid installation and fixation of the fan blades.

[0027] Among them, the connecting flange 18 and the slot 23 on the quick-install flange 19 are internally plugged with a quick-connect component 21 for quick installation, and the quick-connect component 21 includes a plug-in limit card block 1 2101 and a plug-in limit card block 2102. The plug-in limit card block 1 2101 has two and is symmetrically arranged on both sides of the plug-in limit card block 2102. The middle part of the plug-in limit card block 2102 is located on one side of the plug-in limit card block 1 2101 and is provided with a through hole 21021. The end of the plug-in limit card block 1 2101 is fixedly connected with a plug-in column 21012 inserted into the inside of the through hole 21021, and the other end of the plug-in limit card block 1 2101 is provided with a threaded hole 21011, and the two plug-in columns 21012 are fixedly connected to the opposite ends with an adsorption magnet block 21013 with opposite magnetic properties.

[0028] By adopting the above-mentioned technical scheme, the plug-in limit block 2102 can be first inserted into the slot 23 on the connecting flange 18 and the quick-release flange 19, and then the plug-in limit block 1 2101 can be inserted, and the adsorption limit can be achieved by adsorbing the magnet block 21013. The quick installation and disassembly of the quick-connect assembly 21 can be achieved by installing the mounting studs in the threaded holes 21011. The connecting flange 18 and the quick-release flange 19 can be quickly connected and fixed by the quick-connect assembly 21, thereby improving the replacement efficiency of the quick-release flange 19, and ensuring that when testing fan blades of different models, the docking quick-release flanges 19 can be quickly replaced with higher efficiency.

[0029] In this embodiment, the fan blades are fixed on the quick-release flange 19 for inspection, and one end of the fan blades is suspended in the air, so that the state of the fan blades during operation can be effectively simulated. By performing appearance inspection in the suspended state, the defects of the fan blades can be magnified under the action of gravity, which is more conducive to the accuracy of the inspection.

[0030] The rotating motor 4 and the sliding motor 12 are electrically connected to the operation controller 6 through wires, and the adjusting push rod 13, the distance measuring sensor 16 and the CCD detection camera 15 are electrically connected to the operation controller 6 through wires.

[0031] The working principle of the present invention is: when in use, first connect the external circuit with the operation controller 6, then pull the U-shaped slide seat 11 component upward to remove it, hang the fan blades and fix them on the quick-mount flange 19 with bolts, after installation, quickly install the U-shaped slide seat 11 component on the slide plate 10, the annular magnet block 1101 has a certain movable gap inside the movable support hole 1001, when the detection component is touched by external force, it can slide to one side to unload the force, which is safer, and then the power can be transmitted to the connecting flange 18 through the reduction box 3 through the rotating motor 4, thereby driving the connecting flange 18 to rotate, so as to realize the rotation adjustment of the fan blades, and by adjusting The push rod 13 can push the movable plate 14 to move along the sliding rod 22. The distance measuring sensor 16 can detect the position of the CCD detection camera 15 from the fan blade. When the set value is reached, the movement is stopped, and then the lateral movement servo transmission mechanism 9 is driven by the sliding motor 12 to work, thereby driving the sliding component to move laterally, and then driving the CCD detection camera 15 to move along the fan blade. The automatic detection of the appearance of the fan blade can be realized. The fan blade is fixed on the quick-release flange 19 for detection. By suspending one end of the fan blade in the air, the state of the fan blade during operation can be effectively simulated. By performing appearance detection in the suspended state, the defects of the fan blade can be magnified under the action of gravity, which is more conducive to the accuracy of detection.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic detection device for wind power generation fan blades, comprising a measuring bottom support platform (1) and a lateral movement servo transmission mechanism (9) installed on one side above the measuring bottom support platform (1), characterized in that: A slide plate (10) is fixedly connected to the sliding member on the lateral movement servo transmission mechanism (9), a U-shaped slide seat (11) is arranged above the slide plate (10), and adjustment push rods (13) are fixedly connected to the opposite side walls of the U-shaped slide seat (11), and the telescopic end of the adjustment push rod (13) passes through the U-shaped slide seat (11) and is fixedly connected to a movable plate (14), and the bottom of the movable plate (14) is slidably connected to a slide rod (22) fixedly installed on the two inner walls of the U-shaped slide seat (11), and the middle parts of the side walls of the two movable plates (14) facing each other are fixedly connected to distance sensors (16), and CCD detection cameras (15) fixedly connected to the movable plates (14) are arranged on both sides of the distance sensor (16); The four corners above the slide plate (10) are each provided with a movable support hole (1001), the bottom of the movable support hole (1001) is fixedly connected with an annular magnet block 1 (1002), and the four corners below the U-shaped slide seat (11) are fixedly connected with an annular magnet block 2 (1101) inserted into the movable support hole (1001) and adjacent to the annular magnet block 1 (1002), and the magnetic properties of the annular magnet block 2 (1101) are opposite to those of the annular magnet block 1 (1002).

2. The automatic detection device for wind power generation fan blades according to claim 1 is characterized in that: The diameter of the annular magnet block 2 (1101) is half the diameter of the annular magnet block 1 (1002).

3. The automatic detection device for wind power generation fan blades according to claim 1 is characterized in that: One end of the lead screw of the lateral movement servo transmission mechanism (9) is connected to a sliding motor (12) via a key, and a plurality of supporting leg plates (2) are arranged at equal intervals at the bottom of the measuring bottom support platform (1).

4. The automatic detection device for wind power generation fan blades according to claim 1 is characterized in that: A reduction box (3) is fixedly connected to one end of the lateral movement servo transmission mechanism (9) above the measuring bottom support platform (1); a rotating motor (4) is connected to the input shaft of the reduction box (3) via a coupling; and a connecting flange (18) is welded to the output shaft (301) of the reduction box (3).

5. The automatic detection device for wind power generation fan blades according to claim 4 is characterized in that: The top of the reduction box (3) is fixedly connected to a table top (5), an operating controller (6) is placed above the table top (5), a side support plate (7) is fixedly connected to an edge portion below the table top (5), and a tool box body (8) is fixedly placed above the table top (5) on one side of the operating controller (6).

6. The automatic detection device for wind power generation fan blades according to claim 4 is characterized in that: The outer periphery of the output shaft (301) of the reduction box (3) is rotatably connected to a bearing seat (17) via a bearing, the bottom of the bearing seat (17) is fixedly connected to the measuring bottom support platform (1), a quick-mount flange (19) is provided on one side of the connecting flange (18), and a positioning shaft core (20) is integrally formed in the middle of one side wall of the quick-mount flange (19).

7. The automatic detection device for wind power generation fan blades according to claim 6 is characterized in that: A cross-shaped slot (23) is provided on a wall facing the connecting flange (18) and the quick-mount flange (19); the slot (23) is an isosceles trapezoidal structure; and a plurality of fan blade mounting flange holes (1901) are provided at equal intervals on the periphery of the quick-mount flange (19).

8. The automatic detection device for wind power generation fan blades according to claim 7 is characterized in that: A quick-connect assembly (21) for quick installation is provided inside the connecting flange (18) and the slot (23) on the quick-installation flange (19), and the quick-connect assembly (21) comprises a first plug-in limit card block (2101) and a second plug-in limit card block (2102). The first plug-in limit card block (2101) has two pieces, which are symmetrically arranged on both sides of the second plug-in limit card block (2102).

9. The automatic detection device for wind power generation fan blades according to claim 8, characterized in that: A through hole (21021) is provided in the middle of the plug-in limit card block 2 (2102) and is located on one side of the plug-in limit card block 1 (2101); a plug-in column (21012) inserted into the through hole (21021) is fixedly connected to the end of the plug-in limit card block 1 (2101); a threaded hole (21011) is provided at the other end of the plug-in limit card block 1 (2101); and adsorption magnet blocks (21013) with opposite magnetic properties are fixedly connected to the opposite ends of the two plug-in columns (21012).

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