Climbing type wind-electric fan blade detection device

Abstract

The utility model provides a climbing type wind-electric fan blade detection device. The climbing type wind-electric fan blade detection device comprises a climbing assembly, a suction cup assembly, a connecting rod assembly and a detection assembly. The climbing assembly comprises a base and a flexible cable ring, the base is hung on a traction pulley of a wind power cabin so that the climbing assembly can be pulled to ascend and descend in the extending direction of the tower drum, the suction cup assembly comprises a climbing suction cup, and the climbing suction cup is installed on the base so as to be adsorbed to the side wall of the tower drum when the climbing assembly ascends and descends to a target position. The flexible cable ring is connected to the base and wound around the circumferential side wall of the tower so that the climbing assembly can be bound and attached to the tower. The detection assembly is connected to the base of the climbing assembly through the connecting rod assembly so as to ascend and descend along with the climbing assembly. The problem of high damage risk of detection equipment in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power detection, in particular to a climbing type wind power fan blade detection device. Background Art

[0002] With the increasing attention paid to renewable energy around the world, wind power generation, as a clean and renewable energy form, has received widespread attention and application. As a key component of wind turbines, the performance and status of wind turbine blades directly affect the power generation efficiency and safety of wind turbines. Since wind turbine blades operate in harsh natural environments for a long time, such as wind, rain, lightning, etc., cracks, corrosion, wear and other damages may occur on the surface and inside of the blades, which will affect the performance and life of the wind turbine blades and may even cause safety accidents. Therefore, regular inspection and maintenance of wind turbine blades is an important measure to ensure the normal operation of wind turbines.

[0003] Traditional wind turbine blade inspection methods mainly rely on manual visual inspection and simple instrument inspection. These methods have the disadvantages of low inspection efficiency, poor accuracy, and high labor intensity. With the continuous advancement of science and technology, new wind turbine blade inspection devices and technologies continue to emerge, such as inspection devices based on machine vision and inspection devices based on microwave flaw detection technology. However, these new inspection devices and technologies still have some defects in the inspection of in-service wind turbine blades. For example, the use of drone visual inspection systems is greatly affected by the weather environment, and can only detect surface defects. If you are not careful, it will cause damage to the drone. Ultrasonic-based inspection technology often requires the use of a hanging basket and manual handheld instruments for inspection, which is unsafe.

[0004] It can be seen that the existing technology has the problem of high risk of damage to wind turbine blade detection equipment. Utility Model Content

[0005] The utility model provides a climbing type wind turbine fan blade detection device, which solves the problem of high risk of damage to the detection equipment in the prior art.

[0006] The utility model provides a climbing wind turbine blade detection device, including a climbing component, a suction cup component, a connecting rod component and a detection component. The climbing component includes a base and a flexible cable ring, the base is hoisted on the traction pulley of the wind turbine cabin, so that the climbing component can be pulled up and down along the extension direction of the tower, the suction cup component includes a climbing suction cup, the climbing suction cup is installed on the base, so that when the climbing component is lifted to the target position, it is adsorbed on the side wall of the tower; the flexible cable ring is connected to the base and is wound around the circumferential side wall of the tower, so that the climbing component is tied and fits the tower;

[0007] The detection component is connected to the base of the climbing component through the connecting rod component so as to rise and fall along with the climbing component.

[0008] The utility model can reuse the traction pulley of the wind turbine cabin to flexibly lift and lower the detection device, so that the detection device can climb freely along the tower. The detection device of the utility model is light, and the stability of the detection device during the climbing process is ensured by the flexible rope ring and the suction cup assembly. Compared with the manual climbing measurement method, the utility model has a high degree of automation and high measurement efficiency. Compared with the drone measurement method, the utility model has higher safety, low equipment damage rate, low measurement cost and high measurement efficiency.

[0009] Optionally, the detection assembly includes a first guide rail, a second guide rail and a detection probe.

[0010] The detection probe is installed on the first guide rail and can slide along the first guide rail, the first guide rail is installed on the second guide rail and can slide along the second guide rail, and the second guide rail is connected to the connecting rod assembly. The first guide rail and the second guide rail are perpendicular to each other.

[0011] The embodiment of the utility model can enable the detection probe to move vertically and horizontally through the arrangement of the first guide rail and the second guide rail, thereby increasing the measured area of ​​the fan blade at the same lifting height, and can realize comprehensive detection in the width direction of the fan blade at a lifting station, thereby improving the detection efficiency.

[0012] Optionally, the suction cup assembly also includes a fan blade suction cup, which is arranged on a side surface of the second guide rail facing the fan blade, and the fan blade suction cup can be adsorbed on the fan blade surface to fix the second guide rail at a position to be detected.

[0013] Optionally, the suction cup assembly also includes a vacuum cylinder and a vacuum generator. The vacuum cylinder is arranged on the base and is connected to the climbing suction cup and the fan blade suction cup. The vacuum generator can form a vacuum between the climbing suction cup and the circumferential side wall of the tower, and / or between the fan blade suction cup and the fan blade surface through the vacuum cylinder.

[0014] The embodiment of the utility model adopts a vacuum cylinder and a vacuum generator to form a vacuum between the suction cup and the adsorption surface (such as the circumferential side wall of the tower or the surface of the fan blade), thereby enhancing the adsorption capacity of the suction cup, allowing the detection device to more stably and firmly climb on the tower and the fan blade, and effectively avoiding measurement errors caused by shaking of the detection probe.

[0015] Optionally, the connecting rod assembly includes a first connecting rod and a second connecting rod; the first end of the first connecting rod is rotatably connected to the base, the second end of the first connecting rod is rotatably connected to the first end of the second connecting rod, and the second end of the second connecting rod is rotatably connected to the detection assembly; wherein the first connecting rod and / or the second connecting rod is a telescopic structure. The connecting rod assembly also includes a first push rod and a second push rod, the two ends of the first push rod are respectively connected to the base and the first connecting rod to drive the first connecting rod to rotate around its first end, and the two ends of the second push rod are respectively connected to the first connecting rod and the second connecting rod to drive the second connecting rod to rotate around its first end.

[0016] Optionally, the connecting rod assembly further comprises a support push rod. Two ends of the support push rod are respectively connected to the second connecting rod and the second guide rail of the detection assembly to drive the second guide rail to rotate around the second end of the second connecting rod.

[0017] The embodiment of the utility model adopts a connecting rod assembly, so that the detection device has a telescopic capability and a flexible extension distance, which can meet the detection requirements of the full length range of the fan blade.

[0018] Optionally, an elastic roller is provided on the flexible cable ring. By setting the elastic roller, the friction between the flexible cable ring and the side wall of the tower can be increased, thereby improving the climbing ability and climbing stability of the climbing assembly.

[0019] Optionally, a tensioning portion is provided on the base, and the tensioning portion includes a limiting slot provided on the base, and an elastic roller is clamped in the limiting slot so that the flexible rope ring is tensioned and bound to the circumferential side wall of the tower.

[0020] The embodiment of the utility model can clamp the elastic roller on the flexible cable ring through the tensioning part, so as to ensure that the detection device is always close to the tower during the lifting process and climbs along the extension direction of the tower, so as to avoid the detection device colliding with the fan blades during the detection process in harsh environments (such as strong winds) and causing damage to the fan blades.

[0021] Optionally, the climbing wind turbine blade detection device also includes a control unit, which is electrically connected to the first push rod, the second push rod and the bracket push rod to drive the first push rod, the second push rod and the bracket push rod to move; the control unit is also electrically connected to the vacuum generator to control its movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the side structure of the climbing wind turbine blade detection device climbing on the wind turbine blade according to an embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the side structure of the climbing wind turbine blade detection device according to an embodiment of the utility model, wherein the connecting rod assembly is in a folded state;

[0024] Figure 3 This is a schematic diagram of the side structure of the climbing wind turbine blade detection device according to an embodiment of the utility model, wherein the connecting rod assembly is in an extended state;

[0025] Figure 4 This is a schematic diagram of the top view of the structure of the climbing wind turbine blade detection device of the utility model embodiment climbing on the tower;

[0026] Figure 5 This is a schematic diagram of the planar structure of the detection assembly of the climbing wind turbine blade detection device according to an embodiment of the utility model;

[0027] Figure 6A side view structural diagram of the detection assembly of the climbing wind turbine blade detection device according to the utility model

[0028] Figure 7 It is a side view structural diagram of a climbing wind turbine blade detection device according to an embodiment of the utility model, wherein the blade suction cup is adsorbed on the surface of the blade;

[0029] Figure 8 This is a schematic diagram of the electrical control structure of the climbing wind turbine blade inspection device according to an embodiment of the utility model;

[0030] Fig. 9 It is a schematic structural diagram of a climbing wind turbine blade detection device attached to a wind turbine blade according to an embodiment of the utility model, wherein there are multiple climbing wind turbine blade detection devices.

[0031] Description of reference numerals:

[0032] 1: Climbing wind turbine blade detection device;

[0033] 11: base; 111: tensioning part; 112: auxiliary wheel; 113: traction ring; 12: flexible cable ring; 121: elastic roller; 131: climbing suction cup; 132: fan blade suction cup; 133: vacuum cylinder; 134: vacuum generator;

[0034] 14: connecting rod assembly; 141: first connecting rod; 142: second connecting rod; 143: first push rod; 144: second push rod; 145: bracket push rod;

[0035] 15: detection component; 151: first guide rail; 152: second guide rail; 153: detection probe;

[0036] 16: control unit;

[0037] 20: tower; 21: traction pulley; 22: fan blades; 23: traction rope. DETAILED DESCRIPTION

[0038] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0039] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0040] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0041] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0042] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0043] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0044] With the continuous development of technologies such as artificial intelligence and big data, wind turbine blade detection devices are also developing in the direction of intelligence and automation. Figure 1 to Figure 3 The utility model provides a climbing wind turbine blade detection device 1, comprising a climbing component, a suction cup component, a connecting rod component and a detection component. For details, please refer to Figure 1 The climbing assembly includes a base 11 and a flexible cable ring 12. The base 11 is hoisted to the traction pulley 21 of the wind turbine cabin so that the climbing assembly can be pulled up and down along the extension direction of the tower 20. Figure 2 and Figure 3 The suction cup assembly includes a climbing suction cup 131, which is mounted on the base 11 to be attached to the side wall of the tower 20 when the climbing assembly is lifted to the target position. The flexible cable ring 12 is connected to the base 11 and is wound around the circumferential side wall of the tower 20, so that the climbing assembly is tied and fitted to the tower 20. Figure 2 The detection assembly 15 is connected to the base 11 of the climbing assembly through the connecting rod assembly 14 to follow the rise and fall of the climbing assembly.

[0045] The utility model can reuse the traction pulley 21 of the wind turbine cabin to flexibly lift and lower the detection device, so that the detection device can climb freely along the tower 20. The detection device of the utility model is light, and the stability of the detection device during the climbing process is ensured by the flexible rope ring 12 and the suction cup assembly. Compared with the manual climbing measurement method, the utility model has a high degree of automation and high measurement efficiency. Compared with the drone measurement method, the utility model has higher safety, low equipment damage rate, low measurement cost and high measurement efficiency.

[0046] The material of the flexible cable ring 12 is not limited, for example, it can be a metal cable ring with bending ability. In other alternative embodiments, it can also be a rubber cable ring, a silicone cable ring or a rope cable ring. The number of flexible cable rings 12 is not limited, for example Figure 2 As shown, there may be two, distributed up and down along the height direction of the tower. In other alternative embodiments, there may be other numbers. In one embodiment, as Figure 3 As shown, the flexible cable ring 12 is provided with an elastic roller 121, and the elastic roller 121 may be, for example, multiple, and the multiple elastic rollers 121 are arranged at intervals along the flexible cable ring. The arrangement of the elastic rollers 121 can increase the friction between the flexible cable ring 12 and the side wall of the tower 20, thereby improving the climbing ability and climbing stability of the climbing assembly. The elastic roller 121 may be, for example, a silicone ring, a rubber ring, a plastic foam ring, and the like.

[0047] In one embodiment, if Figure 3 As shown, a traction ring 113 is provided on the top of the base 11 for connecting the traction rope 23 (such as Figure 1 At one end of the wind turbine, a traction rope 23 is wound around a traction pulley 21 to lift and lower the traction base under the action of an external force, such as a drive motor, an actuator, etc. in the wind turbine cabin.

[0048] For further information, see Figure 4 The base 11 is provided with a tensioning part 111, which includes a limit slot (not shown) provided on the base 11, and an elastic roller is clamped in the limit slot, so that the flexible cable ring 12 is tensioned and bound to the circumferential side wall of the tower 20. In one embodiment, the tensioning part 111 includes a motor, a synchronous belt and a clamping piece, the flexible cable ring 12 is wound around the synchronous belt, the motor is electrically connected to the synchronous belt, and the synchronous belt is driven to drive the flexible cable ring to be tensioned or relaxed, and the motor is electrically connected to the clamping piece to clamp the flexible cable ring in the limit slot at a specified position.

[0049] The embodiment of the utility model can clamp the elastic roller 121 on the flexible rope ring 12 through the tensioning part 111, so as to ensure that the detection device is always close to the tower 20 during the lifting process and climbs along the extension direction of the tower 20, so as to avoid the detection device colliding with the fan blades during the detection process in harsh environments (such as strong winds) and thus causing damage to the fan blades.

[0050] In one implementation, see Figure 4 Combined with Figure 1 and Figure 2 It is understood that auxiliary wheels 112 are also provided on the base 11 to increase the stability of the climbing assembly when it is raised and lowered along the side wall of the tower 20. The number of auxiliary wheels 112 is not limited. In one embodiment, there can be two auxiliary wheels, which are respectively located at the base sections close to the two ends of the base.

[0051] See also Figure 5 , and combined with Figure 2 and Figure 3 It is understood that the detection assembly 15 includes a first guide rail 151 , a second guide rail 152 and a detection probe 153 .

[0052] The detection probe 153 is mounted on the first guide rail 151 and can slide along the first guide rail 151, the first guide rail 151 is mounted on the second guide rail 152 and can slide along the second guide rail 152, and the second guide rail 152 is connected to the connecting rod assembly 14. In one embodiment, the first guide rail 151 and the second guide rail 152 are perpendicular to each other. The embodiment of the utility model can enable the detection probe 153 to move vertically and horizontally through the setting of the first guide rail 151 and the second guide rail 152, increase the measured area of ​​the fan blade at the same lifting height, and realize comprehensive detection of the fan blade width direction at a lifting station, thereby improving the detection efficiency. It can be understood by those skilled in the art that in other alternative embodiments, the first guide rail 151 and the second guide rail 152 can also be non-vertical and cross-arranged. Among them, the type of detection probe is not limited, for example, it can be a laser probe, an ultrasonic probe, an image processing probe, an acoustic-optical coupling detection probe, etc. Among them, the ultrasonic probe can detect the structure and thickness of the fan blade by emitting ultrasonic waves to scan the fan blade, and can find cracks inside the fan blade. Defects such as looseness have high detection accuracy. In one embodiment, if Figure 5 As shown, the second guide rail 152 is in an I-shape, and includes a main guide rail and two branch guide rails respectively connected to both ends of the main guide rail. The embodiment of the utility model can enable the detection probe 153 to move vertically and horizontally through the arrangement of the first guide rail 151 and the second guide rail 152, thereby increasing the measured area of ​​the fan blade at the same lifting height, and realizing comprehensive detection in the width direction of the fan blade at a lifting station, thereby improving the detection efficiency.

[0053] In one embodiment, the detection probe is installed on the first guide rail via an electric telescopic rod, and the electric telescopic rod can be remotely controlled to extend and retract to control the detection probe to move away from or toward the fan blade surface.

[0054] In one embodiment, the detection assembly further includes a drive motor, and the detection probe and the first guide rail are both electrically connected to the drive motor to move under the drive of the drive motor. The drive motor can be further electrically connected to a remote controller, such as a control unit, a remote controller, etc. mentioned later, to facilitate remote operation.

[0055] For further information, see Figure 5 to Figure 7 Combined with Figure 2 It is understood that the suction cup assembly also includes a blade suction cup 132, which is disposed on a side surface of the second guide rail 152 facing the blade 22. In an exemplary embodiment, the blade suction cup 132 is disposed on two branch guide rails of the second guide rail 152. The blade suction cup 132 can be adsorbed on the surface of the blade 22 to fix the second guide rail 152 at the position to be detected.

[0056] For further information, see Figure 3 The suction cup assembly also includes a vacuum cylinder 133 and a vacuum generator 134. The vacuum cylinder 133 is disposed on the base 11 and is connected to the climbing suction cup 131 and the fan blade suction cup 132. The vacuum generator 134 can form a vacuum between the climbing suction cup 131 and the circumferential side wall of the tower 20, and / or between the fan blade suction cup 132 and the surface of the fan blade 22 through the vacuum cylinder 133. In one embodiment, the interior of the base 11 is hollow, and the vacuum cylinder 133 is disposed in the hollow inner cavity of the base 11. The embodiment of the utility model uses the vacuum cylinder 133 and the vacuum generator 134 to form a vacuum between the suction cup and the adsorption surface (such as the circumferential side wall of the tower 20 or the surface of the fan blade 22), which enhances the adsorption capacity of the suction cup, so that the detection device can climb on the tower 20 and the fan blade 22 more stably and firmly, and effectively avoid the measurement error caused by the shaking of the detection probe.

[0057] In one embodiment, the climbing suction cup 131 and the fan blade suction cup 132 both have a suction cup telescopic rod, the climbing suction cup is installed on the base through the suction cup telescopic rod, and the fan blade suction cup is installed on the second guide rail through the suction cup telescopic rod. Furthermore, the suction cup telescopic rod can be electrically connected to a remote controller, such as the control unit mentioned later, the remote control, etc., to facilitate remote operation of the suction cup extension and retraction.

[0058] Furthermore, pressure sensors are provided in the climbing suction cup 131 and the fan blade suction cup 132 to detect whether the vacuum pressure reaches a preset value. The pressure sensor can be electrically connected to the control unit, remote control, etc. mentioned later to feed back the detected pressure value to the control unit. The control unit can control the action of the vacuum generator and the vacuum cylinder according to the pressure value fed back by the pressure sensor to control the vacuum state of the climbing suction cup 131 and the fan blade suction cup 132.

[0059] In one implementation, see Figure 2 to Figure 7, the connecting rod assembly 14 includes a first connecting rod 141 and a second connecting rod 142. The first end of the first connecting rod 141 is rotatably connected to the base 11, the second end of the first connecting rod 141 is rotatably connected to the first end of the second connecting rod 142, and the second end of the second connecting rod 142 is rotatably connected to the detection assembly 15, for example, connected to the second guide rail 152 of the detection assembly 15. In one embodiment, the first connecting rod 141 and the second connecting rod 142 are both retractable structures. It can be understood by those skilled in the art that the first connecting rod 141 and the second connecting rod 142 may not adopt a retractable structure, or one of the two may adopt a retractable structure. Further, the connecting rod assembly 14 also includes a first push rod 143 and a second push rod 144, the two ends of the first push rod 143 are respectively connected to the base 11 and the first connecting rod 141 to drive the first connecting rod 141 to rotate around its first end, and the two ends of the second push rod 144 are respectively connected to the first connecting rod 141 and the second connecting rod 142 to drive the second connecting rod 142 to rotate around its first end.

[0060] In an exemplary embodiment, the first link 141 is rotatably connected to the base via a joint shaft, and the second link 142 is rotatably connected to the first link 141 via a joint shaft. In other alternative embodiments, other connection methods may be used, such as connection via a shaft or a pin shaft. The present invention is not limited to this. As long as the first link can rotate around its first end and the second link can rotate around its first end, the connection method does not deviate from the scope of the embodiments of the present invention.

[0061] Furthermore, the connecting rod assembly 14 also includes a support push rod 145. The two ends of the support push rod 145 are respectively connected to the second connecting rod 142 and the second guide rail 152 of the detection assembly 15 to drive the second guide rail 152 to rotate around the second end of the second connecting rod 142. The embodiment of the utility model adopts the connecting rod assembly 14, so that the detection device has a telescopic ability and a flexible extension distance, which can meet the detection of the full length range of the fan blade.

[0062] In one embodiment, the first push rod 143, the second push rod 144 and the support push rod 145 are all electric push rods, which can be started and stopped under electric control. Figure 8The climbing wind turbine blade detection device 1 also includes a control unit 16, which is electrically connected to the first push rod 143, the second push rod 144 and the bracket push rod 145 to drive the first push rod 143, the second push rod 144 and the bracket push rod 145 to move, and the control unit 16 is also electrically connected to the vacuum generator 134 to control its movement. In one embodiment, the control unit 16 is also electrically connected to the motor of the aforementioned tensioning part 111 to electrically control the tensioning and relaxation of the flexible cable ring. Further, in one embodiment, the climbing wind turbine blade detection device 1 also includes a wireless remote controller, a portable display unit, a battery pack, etc. The wireless remote controller can remotely control the above-mentioned electric devices, such as drive motors, electric telescopic rods, vacuum generators, etc. The portable display unit can be used to display detection data, such as vacuum data, blade detection data, etc. The battery pack is used to power each drive motor, electric device, detection probe, etc. In other alternative embodiments, the backup power supply of the wind turbine set can also be used. When the external power supply is used, the power supply voltage can be, for example, AC380V, 10Kw.

[0063] In one embodiment, if Fig. 9 As shown, the same wind turbine blade 22 and the same tower 20 can carry multiple climbing wind turbine blade detection devices 1 at the same time. The multiple climbing wind turbine blade detection devices 1 can detect the same information at different positions, such as detecting ultrasonic information at multiple positions, or can detect different information at the same position, such as detecting image information, ultrasonic information, etc. at the same position by installing different detection probes.

[0064] The utility model also provides a wind turbine blade detection method, which uses the climbing wind turbine blade detection device involved in the above embodiments and possible implementation methods to perform detection, and the detection method includes:

[0065] Step S1: The elastic roller is clamped in the limit clamping groove through the tensioning part, so that the flexible cable ring is tensioned and bound to the circumferential side wall of the tower.

[0066] Step S2: Start the traction pulley of the wind turbine cabin to lift the climbing assembly to the target position.

[0067] Step S3: Control the climbing suction cup to be attached to the side wall of the tower.

[0068] Step S4: controlling the first push rod and the second push rod to move, driving the first connecting rod and / or the second connecting rod to extend and retract, and adjusting the detection probe to within the detection threshold distance.

[0069] Step S5: Control the movement of the support push rod and make the fan blade suction cup adsorb on the fan blade surface to fix the second guide rail at the position to be detected.

[0070] Step S6: controlling the detection probe to slide along the first guide rail and / or controlling the first guide rail to slide along the second guide rail, and performing a detection action.

[0071] In one implementation, please combine Figure 1 to Figure 7 It is understood that the climbing wind turbine blade detection device 1 (hereinafter referred to as the detection device) is changed from a folded state (such as Figure 2After the flexible cable ring 12 is transported to the bottom of the wind turbine group (as shown in the figure), the detection device is slowly lifted up by the original wind turbine hoist, for example, it can be lifted from a horizontal state to a horizontal state. Step S1 can be specifically: the flexible cable ring 12 is wrapped around the side wall of the wind turbine tower and one end is fixed to the tensioning part, and the other end is clamped in the limit slot of the tensioning part 111 through the elastic roller 121. The flexible cable ring 12 and the tower 20 are kept at a certain pre-tightening force through the tensioning part 111. After reaching a certain pre-tightening force, step S2 is executed, which can be specifically: start the hoist to control the traction pulley 21 to lift the climbing assembly (or the entire detection device) along the tower 20, and stop lifting when it rises to the target position, such as the appropriate position of the fan blade head. Then, step S3 is performed, which may be specifically: using the control unit, for example, operating the remote control to extend the suction cup telescopic rod of the climbing suction cup 131 to contact the side wall of the tower 20. At this time, the operation is to control the suction cup suction button, and use the vacuum cylinder 133, the vacuum generator 134 and the corresponding vacuum pipeline to exhaust the air in the suction cup to form a vacuum, so as to fix the base 11 of the detection device on the tower 20. The vacuum pressure is detected by the pressure sensor. When the vacuum pressure is higher than the set value, the vacuum generator will start to supplement the vacuum pressure of the negative pressure cylinder to the set value. Then, step S4 is performed, which may be specifically: using the control unit, for example, operating the remote control to extend the first push rod 143 and the second push rod 144, and the detection device changes from the folded state to the extended state. In this process, the distance sensor can be used to detect the distance between the detection probe and the fan blade. If the distance between the detection probe and the fan blade does not reach the detection distance, the remote control can be operated to extend and retract the first connecting rod 141 and / or the second connecting rod 142 to adjust the detection probe 153 to within the detection threshold distance. Then, step S5 is performed, which may be specifically as follows: by controlling the control unit, for example, operating the remote control to adjust the extension and retraction of the bracket push rod 145, and then adjusting the angle of the detection assembly, so that the first guide rail 151 and the second guide rail 152 remain parallel to the fan blade 22. At this time, the suction cup extension rod of the fan blade suction cup 132 is controlled to extend, and after contacting the fan blade 22, the fan blade suction cup suction button of the remote control is pressed, and the fan blade suction cup 132 is sucked together with the surface of the fan blade 22 by vacuuming, and then the second guide rail 152 is fixed to the surface of the fan blade 22. Then, step S6 is performed, which may be specifically as follows: by controlling the control unit, for example, operating the probe detection button of the remote control, the detection probe (such as an ultrasonic probe) starts the detection operation, and the detection probe can also realize vertical and horizontal movement through the first guide rail 151 and the second guide rail 152, and detect while moving, and the detection image data is transmitted to the display unit by wireless transmission, and data processing and display are performed. More specifically, the vertical and horizontal movement can be, for example: when moving horizontally (or can be understood as the X-axis direction) to the head, the detection probe automatically moves a detection distance vertically (or can be understood as the Y-axis direction), and then scans horizontally. When it moves horizontally to the head again, it moves a detection distance in the same longitudinal direction, and the scanning and detection are repeated in a reciprocating cycle until a detection area is completely completed.After the detection probe completes a detection area, the vacuum of the fan blade suction cup 132 can be released, the connecting rod assembly 14 can be retracted a certain distance, and then the vacuum of the climbing suction cup 131 can be released, and the hoist can be operated to make the detection device rise one station to start the next detection cycle.

[0072] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A climbing wind turbine blade detection device, characterized in that: It includes a climbing assembly, a suction cup assembly, a connecting rod assembly and a detection assembly; The climbing assembly includes a base and a flexible cable ring. The base is hoisted on the traction pulley of the wind turbine cabin so that the climbing assembly can be pulled up and down along the extension direction of the tower. The suction cup assembly includes a climbing suction cup. The climbing suction cup is installed on the base so as to be adsorbed on the side wall of the tower when the climbing assembly is lifted to the target position. The flexible cable ring is connected to the base and is wound around the circumferential side wall of the tower so that the climbing assembly is bound and fitted to the tower. The detection assembly is connected to the base of the climbing assembly through the connecting rod assembly to follow the rise and fall of the climbing assembly.

2. The climbing wind turbine blade detection device according to claim 1, characterized in that: The detection assembly includes a first guide rail, a second guide rail and a detection probe; The detection probe is mounted on the first guide rail and can slide along the first guide rail, the first guide rail is mounted on the second guide rail and can slide along the second guide rail, and the second guide rail is connected to the connecting rod assembly; The first guide rail and the second guide rail are perpendicular to each other.

3. The climbing wind turbine blade detection device according to claim 2, characterized in that: The suction cup assembly also includes a fan blade suction cup, which is arranged on a side surface of the second guide rail facing the fan blade, and the fan blade suction cup can be adsorbed on the fan blade surface to fix the second guide rail at a position to be detected.

4. The climbing wind turbine blade detection device according to claim 3, characterized in that: The suction cup assembly also includes a vacuum cylinder and a vacuum generator. The vacuum cylinder is arranged on the base and is connected to the climbing suction cup and the fan blade suction cup. The vacuum generator can form a vacuum between the climbing suction cup and the circumferential side wall of the tower, and / or between the fan blade suction cup and the fan blade surface through the vacuum cylinder.

5. The climbing wind turbine blade detection device according to any one of claims 1 to 4, characterized in that: The connecting rod assembly comprises a first connecting rod and a second connecting rod; the first end of the first connecting rod is rotatably connected to the base, the second end of the first connecting rod is rotatably connected to the first end of the second connecting rod, and the second end of the second connecting rod is rotatably connected to the detection assembly; wherein the first connecting rod and / or the second connecting rod is a telescopic structure; The connecting rod assembly also includes a first push rod and a second push rod; The two ends of the first push rod are respectively connected to the base and the first connecting rod to drive the first connecting rod to rotate around its first end, and the two ends of the second push rod are respectively connected to the first connecting rod and the second connecting rod to drive the second connecting rod to rotate around its first end.

6. The climbing wind turbine blade detection device according to claim 5, characterized in that: The connecting rod assembly also includes a bracket push rod; Two ends of the support push rod are respectively connected to the second connecting rod and the second guide rail of the detection assembly to drive the second guide rail to rotate around the second end of the second connecting rod.

7. The climbing wind turbine blade detection device according to any one of claims 1 to 4, characterized in that: An elastic roller is arranged on the flexible cable ring.

8. The climbing wind turbine blade detection device according to claim 7, characterized in that: The base is provided with a tensioning part, and the tensioning part includes a limiting slot provided on the base, and the elastic roller is clamped in the limiting slot so that the flexible rope ring is tensioned and bound to the circumferential side wall of the tower.

9. The climbing wind turbine blade detection device according to claim 6, characterized in that: Also includes a control unit; The control unit is electrically connected to the first push rod, the second push rod and the support push rod to drive the first push rod, the second push rod and the support push rod to move; the control unit is also electrically connected to the vacuum generator to control its movement.

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