Wind farm inspection platform

Abstract

This utility model discloses a wind farm inspection platform, relating to the field of wind farm detection technology. The platform includes a base; a traveling mechanism located below the base; a detection component including a telescopic arm and a detection sensor at one end of the telescopic arm, the sensor being used to detect the tower; the telescopic arm being omnidirectionally mounted on the base to adjust the distance between the detection sensor and the base as the telescopic arm extends and retracts; and a shock-absorbing component connecting the base and the traveling mechanism. The technical solution provided by this utility model facilitates adjustment of the detection distance and observation angle, avoids image blurring, and improves detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of wind farm detection technology, and in particular to a wind farm inspection platform. Background Technology

[0002] As an important component of clean energy, wind power generation typically consists of a tower, nacelle, blades, and foundation structure. Among these, the tower is the key component supporting the entire wind turbine system, and the safety of its structure is directly related to the stable operation of the entire wind turbine.

[0003] Because wind turbines are exposed to the external natural environment, they are easily affected by wind and sun. After long-term use, defects such as surface coating aging, weld cracking, and bolt loosening may occur. If these defects are not detected and dealt with in time, they may lead to structural failure or even collapse. Therefore, it is necessary to regularly inspect the appearance and structural condition of the tower. Currently, when the inspection robot inspects the tower, it cannot dynamically adjust the detection distance and observation angle according to the changes in the curvature of the tower, resulting in blurred images of some key areas. Utility Model Content

[0004] The main purpose of this invention is to propose a wind farm inspection platform that aims to solve the technical problem of blurred imaging caused by the inability to dynamically adjust the detection distance and observation angle.

[0005] To achieve the above objectives, the wind farm inspection platform proposed in this utility model includes: Base; A traveling mechanism is located below the base, and the traveling mechanism is used to drive the base to move on the surface of the tower. The detection assembly includes a telescopic arm and a detection sensor located at one end of the telescopic arm. The detection sensor is used to detect surface defects on the tower. The telescopic arm is rotatably mounted on the base so that the distance between the detection sensor and the base is adjusted as the telescopic arm extends and retracts. A shock-absorbing assembly connects the base and the walking mechanism.

[0006] In one embodiment, the detection component further includes: A mounting plate is provided above the base, and the end of the telescopic arm away from the detection sensor is hinged to the mounting plate; A rotating component is provided on the base, and the output end of the rotating component is driven to drive the mounting plate to rotate. A linear motion module includes a fixed end and a telescopic end connected to each other. The fixed end is hinged to the mounting plate, and the telescopic end is hinged to the telescopic arm so as to adjust the pitch angle of the telescopic arm by extending or retracting the telescopic end.

[0007] In one embodiment, the telescopic arm includes a cylinder and a connecting rod. The fixed part of the cylinder is hinged to the mounting plate, and the connecting rod is mounted on the piston rod of the cylinder so that the extension and retraction of the connecting rod are driven by the extension and retraction of the piston rod.

[0008] In one embodiment, the detection sensor includes at least one of a camera, an infrared thermal imager, a laser rangefinder, an ultrasonic probe, a lighting lamp, and an environmental sensor.

[0009] In one embodiment, the traveling mechanism includes a floating connecting frame and two opposing traveling units. The floating connecting frame is mounted on the base and connects the two traveling units. Each traveling unit includes: Drive motor; A wheel assembly, wherein the drive motor is connected to the wheel assembly to drive the wheel assembly to rotate; An annular track is fitted around the outer circumference of the wheel assembly so that the rotation of the wheel assembly drives the annular track to move. A permanent magnet adsorption module is located on the inner side of the annular track and faces the surface of the tower. It is used to adsorb onto the tower by penetrating the annular track through a magnetic field.

[0010] In one embodiment, the damping component is configured as a spring and is disposed between the floating connecting frame and the base.

[0011] In one embodiment, the wind farm inspection platform further includes a positioning component, the positioning component comprising: An attitude measurement unit is disposed on the base, and the measurement unit is used to measure the three-dimensional attitude of the walking mechanism; An encoder, located on the output shaft of the drive motor, is used to detect the number of rotations of the annular track; A visual marker sensor is disposed on the base, and the visual marker sensor is used to identify information markers on the tower.

[0012] In one embodiment, the wind farm inspection platform further includes a deployment and retrieval assembly, which includes: A locking structure is located at the top flange of the tower. A safety rope, one end of which is wound inside the locking structure, and the other end of which is connected to the base; The locking structure has a locked state and a released state. In the released state, the safety rope is freely pulled out or rolled back as the base rises and falls. In the locked state, the safety rope stops being pulled out.

[0013] In one embodiment, the locking structure includes: The shell is fixed to the tower. A rope winder is rotatably mounted inside the housing, and the safety rope is wound around the rope winder; A constant force coil spring, with one end connected to the housing and the other end connected to the rope reel, is used to provide a rewinding force after the safety rope is pulled out, so that the rope reel has a tendency to rewind. The speed difference controller is installed inside the housing and is driven by the winding wheel.

[0014] In one embodiment, the wind farm inspection platform further includes a power supply component, which includes a solar panel and a power management module. The solar panel is rotatably mounted on the top of the base, and the power management module is electrically connected to the solar panel and the detection component to convert the solar energy absorbed by the solar panel into direct current and power the detection component.

[0015] In the technical solution of this utility model, the walking mechanism is set below the base to drive the base to move along the surface of the tower, adapting to changes in the external curvature of the tower, so as to provide a moving basis for dynamic adjustment. The detection component includes a telescopic arm and a detection sensor. The telescopic arm is omnidirectionally mounted on the base, so that the detection sensor can adjust the observation angle in real time according to the curvature change of the tower, avoiding blind spots. At the same time, as the telescopic arm extends and retracts, the distance between the detection sensor and the base can also be adjusted in real time to ensure that the sensor always maintains the optimal detection distance from the tower surface, preventing image blurring caused by excessive distance or proximity. By adjusting the extension length of the telescopic arm and its angle relative to the base, the detection accuracy can be improved. The shock absorption component connects the base and the walking mechanism, absorbing external vibrations during the movement of the walking mechanism, reducing platform swaying caused by uneven tower surface or wind interference, so that the detection sensor can detect stably, avoiding image jitter caused by vibration, and through the walking mechanism, omnidirectional circumferential inspection along the tower surface can be achieved. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of an embodiment of the wind farm inspection platform provided by this utility model.

[0018] Explanation of icon numbers: 100. Base; 200. Walking mechanism; 210. Wheel set; 211. Drive wheel; 212. Driven wheel; 220. Circular track; 230. Floating connecting frame; 300. Detection component; 310. Mounting plate; 320. Rotation component; 330. Linear movement module; 340. Telescopic arm; 341. Cylinder; 342. Connecting rod; 350. Detection sensor; 400. Solar panels.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] This utility model proposes a wind farm inspection platform.

[0024] Please see Figure 1 In one embodiment of this utility model, the wind farm inspection platform includes Base 100; The traveling mechanism 200 is located below the base 100. The traveling mechanism 200 is used to drive the base 100 to travel on the tower and to drive the base 100 to move on the surface of the tower. The detection assembly 300 includes a telescopic arm 340 and a detection sensor 350 disposed at one end of the telescopic arm 340. The detection sensor 350 is used to detect defects on the tower surface. The telescopic arm 340 is rotatably mounted on the base 100 so that the distance between the detection sensor 350 and the base 100 can be adjusted as the telescopic arm 340 extends and retracts. The shock absorption assembly connects the base 100 and the traveling mechanism 200.

[0025] In the technical solution of this utility model, the walking mechanism 200 is disposed below the base 100 and is used to drive the base 100 to move along the surface of the tower, adapting to changes in the external curvature of the tower, so as to provide a moving basis for dynamic adjustment. The detection component 300 includes a telescopic arm 340 and a detection sensor 350. The telescopic arm 340 is omnidirectionally mounted on the base 100, so that the detection sensor 350 can adjust the observation angle in real time according to the curvature change of the tower, avoiding blind spots. At the same time, as the telescopic arm 340 extends and retracts, the distance between the detection sensor 350 and the base 100 can also be adjusted in real time. To ensure that the sensor always maintains the optimal detection distance from the tower surface and prevent image blurring caused by excessive or insufficient distance, the detection accuracy can be improved by adjusting the telescopic length of the telescopic arm 340 and its angle relative to the base 100. The shock absorption component connects the base 100 and the traveling mechanism 200, absorbing external vibrations during the movement of the traveling mechanism 200, reducing platform swaying caused by uneven tower surface or wind interference, so that the detection sensor 350 can detect stably and avoid image jitter caused by vibration. Furthermore, the traveling mechanism 200 enables omnidirectional circumferential inspection along the tower surface.

[0026] Specifically, the base 100 serves as the overall support structure for mounting the walking mechanism 200 and the detection component 300, etc. Its shape is not limited, as long as it can provide an installation platform. To adapt to the outdoor environment of wind and sun, it can be made of stainless steel or other alloys, etc. There are no restrictions here. The walking mechanism 200 is set below the base 100. The walking mechanism 200 can be a tracked walking mechanism 200 or a wheeled walking mechanism 200, there are no restrictions here.

[0027] In one embodiment, a main control unit is also included. The main control unit is located inside the base 100 and is communicatively connected to the walking mechanism 200 and the detection component 300. The main control unit can be a PLC controller and is communicatively connected to a terminal, which can be a computer terminal, without limitation. The main control unit adjusts the moving speed of the walking mechanism 200 and the detection position and angle of the detection sensor 350 to perform more comprehensive detection.

[0028] In an embodiment of this utility model, the detection component 300 further includes: Mounting plate 310 is located above base 100, and the end of telescopic arm 340 away from detection sensor 350 is hinged to mounting plate 310; A rotating component 320 is provided on the base 100. The output end of the rotating component 320 is driven to drive the mounting plate 310 to rotate. The linear motion module 330 includes a fixed end and a telescopic end connected to each other. The fixed end is hinged to the mounting plate 310, and the telescopic end is hinged to the telescopic arm 340 so as to adjust the pitch angle of the telescopic arm 340 by extending and retracting the telescopic end.

[0029] Specifically, the mounting plate 310 can be made of alloy or composite material. The rotating component 320 is installed inside the base 100 and can be a rotary cylinder 341 or a servo motor, electrically connected to the main control unit without limitation. The output shaft of the rotating component 320 passes through the top plate of the base 100 and is driven by the mounting plate 310 to rotate the mounting plate 310. The rotation axis of the mounting plate 310 is perpendicular to the base 100, allowing the detection component 300 to cover different positions around the tower circumference. The fixed end of the linear motion module 330 is hinged to the mounting plate 310, and the other end is hinged to the middle of the telescopic arm 340. In one embodiment, the linear motion module 330 can be an electric push rod. The extension or retraction of the telescopic end of the linear motion module 330 can adjust the angle between the telescopic arm 340 and the mounting plate 310. The linear motion module 330 is electrically connected to the main control unit. Therefore, when the traveling mechanism 200 drives the base 100 to travel on the tower, it can travel both vertically and horizontally. The detection component 300 moves circumferentially along the tower surface. As long as it moves along the tower surface, the position of the adjusted detection component 300 changes vertically. Then, the mounting plate 310 is driven to rotate by the rotating component 320. At this time, the detection component 300 is also moving in the adjusted vertical direction. The position of the detection sensor 350 in the radial direction of the tower is adjusted by the linear movement module 330. With the extension and retraction of the telescopic arm 340, the detection component 300 can reach different positions, expanding the detection area centered on the base 100. In other words, the cooperation of the rotating component 320 and the linear movement module 330 expands the detection range of the detection component 300. Compared with the previous need to travel through the walking mechanism 200 to reach the detection position, the detection time is shortened and the detection efficiency is improved. In positions where the walking mechanism 200 is inconvenient to move to, the detection sensor 350 can be rotated and its extension and retraction controlled by rotating the telescopic arm 340 to make the detection more comprehensive, eliminating the imaging blurring problem caused by angular deviation and improving image clarity.

[0030] In an embodiment of this utility model, the telescopic arm 340 includes a cylinder 341 and a connecting rod 342. The cylinder 341 is electrically connected to the main control unit, and its fixed part is hinged to the mounting plate 310. The connecting rod 342 is mounted on the piston rod of the cylinder 341, so that the extension and retraction of the connecting rod 342 can be driven by the extension and retraction of the piston rod. The detection sensor 350 is mounted on the connecting rod 342. The fixed part of the cylinder 341 is hinged to the mounting plate 310 so that the pitch angle of the cylinder 341 relative to the mounting plate 310 can be adjusted by the linear motion module 330. Specifically, the cylinder 341 can be hinged to the mounting plate 310 by ball bearings or pins. By extending and retracting the connecting rod 342, the distance between the detection component 300 and the position to be detected can be adjusted to avoid blurry detection images caused by excessively far or too close distances, thus making the detection more accurate.

[0031] In an embodiment of this utility model, the detection sensor 350 includes at least one of a camera, an infrared thermal imager, a laser rangefinder, an ultrasonic probe, a lighting lamp, and an environmental sensor. The camera is used to capture images of the tower surface and send the captured images of the tower surface to the main control unit. The main control unit sends the images to the terminal platform to analyze and detect the position of the captured images.

[0032] In one embodiment, the detection sensor 350 further includes an infrared thermal imager, which is electrically connected to the main control unit and is used to detect infrared radiation and generate heat distribution. Specifically, it can be implemented by a microbolometer array or a thermopile sensor to identify temperature anomalies on the surface of the tower. If a temperature anomaly is found, it can be adjusted in time to avoid tower cracking after long-term use.

[0033] In one embodiment, the detection sensor 350 may also be a laser rangefinder. The laser rangefinder is electrically connected to the main control unit and can use phase difference method or pulse method distance measurement technology to obtain the distance between the end of the connecting rod 342 and the position to be measured on the tower surface. The signal is then transmitted to the main control unit. The main control unit adjusts the rotation angle and pitch angle of the rotating component 320 according to the measured distance, so that the distance between the detection sensor 350 and the position to be detected is adjusted to a distance that is convenient for detection and photography.

[0034] In one embodiment, the detection sensor 350 may further include an ultrasonic probe, which is electrically connected to the main control unit and uses sound waves to detect internal defects in the material, namely, cracks or delamination defects inside the tower material. Specifically, it may employ piezoelectric ceramics or composite materials.

[0035] In one embodiment, the detection sensor 350 further includes an illumination lamp, which may be an LED lamp electrically connected to the main control unit, used to enhance brightness under low light conditions in order to facilitate taking pictures and improve image quality.

[0036] In one embodiment, the detection sensor 350 can be an environmental sensor electrically connected to the main control unit to monitor environmental parameters, such as wind speed, temperature, or humidity, and transmit the data to the main control unit. The main control unit can then dynamically adjust the detection based on environmental conditions, such as different wind speeds and directions. In such cases, the main control unit controls the walking mechanism 200 to move so that the detection sensor 350 is placed in a suitable position for better detection of the tower.

[0037] In one embodiment, the detection sensor 350 may also employ LiDAR to perform 3D scanning of the tower to measure the deformation data of the tower's verticality and cylindricity, and transmit the data to the main control unit, so that the main control unit can determine whether there are defects based on the tower's verticality and deformation data.

[0038] By integrating multiple detection devices, the detection sensor 350 transmits the detected data to the main control unit. The main control unit can dynamically select or fuse multiple data based on the tower curvature changes, lighting conditions, and the type of defects in the tower. For example, it can use a laser rangefinder to adjust the extension length of the telescopic boom 340 in real time to ensure that the camera, infrared thermal imager, and ultrasonic probe maintain the optimal detection distance. It can also use lighting to automatically supplement light in low-light environments, making the image capture clearer. The collaborative work of multiple sensors effectively solves the limitations of a single detection sensor 350, making tower detection more comprehensive and the results more accurate, thus improving the reliability and comprehensiveness of wind farm inspections.

[0039] It should be noted that the main control unit can adjust its position autonomously or manually via the terminal based on the received data. The specific control logic is the existing control logic and will not be described in detail here.

[0040] In an embodiment of this utility model, the walking mechanism 200 includes a floating connecting frame 230 and two oppositely arranged walking units. The floating connecting frame 230 is mounted on the base 100 and is used to connect the two walking units. Each walking unit includes: Drive motor; Wheel set 210, drive motor is connected to drive wheel set 210 to drive wheel set 210 to rotate; The annular track 220 is fitted around the outer periphery of the wheel set 210 so that the annular track 220 can be moved by the rotation of the wheel set 210. The permanent magnet adsorption module is located inside the annular track 220 and faces the tower surface. It is used to adsorb onto the tower by penetrating the annular track 220 through a magnetic field.

[0041] Specifically, two traveling units are connected by a floating connecting frame 230. The floating connecting frame 230 can float relative to the traveling units in a direction perpendicular to the traveling plane, facilitating the maintenance of a stable center of gravity. The drive motor can be a brushless DC motor to achieve precise torque control, and the drive motor is electrically connected to the main control unit. The wheel set 210 includes a driving wheel 211 and a driven wheel 212, and may also include a tension wheel, etc. The driving wheel 211 and the driven wheel 212 are inside the annular track 220, and the driving wheel 211 and the driven wheel 212 are spaced apart at both ends inside the annular track 220. The drive motor drives the driving wheel 211 to rotate through the drive shaft. The rotation of 211 drives the annular track 220 to move, which in turn drives the driven wheel 212 to rotate, thus realizing the movement of the walking mechanism 200. The drive parameters of the drive motors of the two walking units are the same, so as to maintain the same moving speed of the two walking units and avoid deviation, so that the walking mechanism 200 can move stably and improve the stability of detection. During the movement of the annular track 220, in order to prevent the walking mechanism 200 from falling due to gravity, a permanent magnet adsorption module is set on the inner side of the annular track 220. The magnetic field generated by the permanent magnet adsorption module passes through the track and adsorbs onto the tower, so that it can stay stably at any position on the tower without falling.

[0042] In one embodiment, the permanent magnet adsorption module can be a neodymium iron boron magnet. In other embodiments, the permanent magnet adsorption module can also be a ferrite magnet module or a composite permanent magnet structure. There are no restrictions here. The permanent magnet adsorption module provides magnetic attraction force, and the magnetic field forms an adsorption with the surface of the tower after passing through the track, so that the walking mechanism 200 can walk and move stably on the surface of the tower, avoiding the inspection platform from falling due to gravity when walking on the surface of the tower.

[0043] In one embodiment, a permanent magnet load-bearing wheel can also be provided between the driving wheel 211 and the driven wheel 212, which can not only support the track, but also generate a magnetic field that can penetrate the track and be attracted to the tower.

[0044] In this embodiment of the invention, the shock absorption component is configured as a spring and is located between the floating connecting frame 230 and the base 100. The spring's elastic deformation is used to dissipate the vibration energy of the walking mechanism 200 and reduce the vibration amplitude transmitted to the base 100. When the inspection platform moves along the surface of the tower, if a part of the tower is uneven, the annular track 220 will vibrate by floating up and down. The spring absorbs the vibration energy through linear elastic deformation, which greatly reduces the vibration transmitted to the base 100. This ensures the stability of the detection sensor 350 during dynamic inspection, improves the clarity of the image, and avoids the image blurring affecting the detection results.

[0045] In one embodiment, the spring can be a helical spring, a disc spring, or a rubber spring, and there is no limitation herein.

[0046] In an embodiment of this utility model, the wind farm inspection platform further includes a positioning component, which includes: An attitude measurement unit is installed on the base 100. The measurement unit is used to measure the three-dimensional attitude of the walking mechanism 200. An encoder, located on the output shaft of the drive motor, is used to detect the number of rotations of the annular track 220. A visual marker sensor, located on base 100, is used to identify information markers on the tower.

[0047] Specifically, the attitude measurement unit is electrically connected to the main control unit and uses MEMS technology to detect the tilt state of the inspection platform on the tower surface. The encoder can be an incremental photoelectric encoder, which is set on the output shaft of the drive motor and electrically connected to the main control unit. The moving distance of the inspection platform is calculated by detecting the number of rotations of the annular track 220. In addition, the visual mark sensor can be a CMOS camera and is electrically connected to the main control unit. The visual mark sensor is fixed at the front end of the base 100 and is used to scan the tower surface during the movement of the inspection platform. Usually, multiple height information marks are set on the tower surface along its vertical direction. These marks are marked with QR codes and represent absolute positions, such as the height above the ground and the azimuth angle. By scanning the height information marks by the visual mark sensor, the height position of the inspection platform is determined, providing an absolute position calibration point for the inspection platform and avoiding calculation errors caused by the accumulation of pure mileage from the rotations of the annular track 220. The attitude measurement unit, encoder, and visual marker sensor are set up to transmit the detected information to the main control unit to achieve fusion positioning. The main control unit adjusts the pitch angle and extension length of the telescopic arm 340 according to the three-dimensional attitude of the inspection platform to facilitate better imaging. If a defect is detected, the precise location of the defect can be determined based on the fusion positioning information, thereby improving repair efficiency.

[0048] In an embodiment of this utility model, the wind farm inspection platform further includes a deployment and retraction component, which includes: A locking structure is located at the top flange of the tower. The safety rope has one end wound inside the locking structure and the other end connected to the base 100; The locking structure has a locked state and a released state. In the released state, the safety rope is freely pulled out or rolled back as the base 100 rises and falls. In the locked state, the safety rope stops being pulled out.

[0049] Specifically, the locking structure is installed on the flange at the top of the tower, providing stable fixed support for the safety rope. The locking structure is also connected to the main control unit. The safety rope can be made of steel wire rope or aramid fiber rope, which can not only provide traction during the lifting and lowering of the inspection platform, but also adapt to tension changes. One end of the safety rope is wound inside the locking structure, and the other end is connected to the base 100. During the normal movement and lifting of the inspection platform outside the tower, the locking structure is in the released state, that is, the safety rope freely extends and retracts with the lifting and lowering of the base 100. Once the inspection platform detaches from the tower surface and falls rapidly, the locking structure automatically switches to the locked state to prevent the safety rope from being pulled out continuously, thereby preventing the rapid fall of the inspection platform from causing equipment damage or personnel injury, and ensuring the safety of the inspection platform during the lifting and lowering process.

[0050] In one embodiment, an acceleration sensor can be installed on the base 100. The acceleration sensor is electrically connected to the main control unit. The acceleration of the base 100 is detected by the acceleration sensor. In particular, when the inspection platform is in free fall, the acceleration is abnormal. At this time, the acceleration sensor transmits the signal to the main control unit, and the main control unit controls the locking structure to switch to the locked state.

[0051] In one embodiment, the locking structure can be a mechanical ratchet mechanism or an electromagnetic induction lock, or a centrifugal locking mechanism. When the safety rope is pulled out at a speed exceeding a preset threshold, the centrifugal tube triggers the locking buckle due to centrifugal force, thereby preventing the safety rope from being pulled out further and thus preventing the inspection platform from falling further.

[0052] In one embodiment, the locking structure includes: The shell is fixed to the tower. The rope reel is rotatably installed inside the housing, and the safety rope is wound around the rope reel. A constant force coil spring, with one end connected to the housing and the other end connected to the rope reel, is used to provide a rewinding force after the safety rope is pulled out, so that the rope reel has a tendency to rewind. The speed difference controller is installed inside the housing and connected to the winding wheel drive.

[0053] Specifically, the locking structure includes a housing, a rope reel, a constant force spring, and a speed differential controller. The housing is installed at the flange on the top of the tower and houses the rope reel and constant force spring. The housing can be made of metal, such as stainless steel, to provide sufficient strength to withstand the load on the safety rope during pull-out and locking. The rope reel rotates inside the housing. The constant force spring provides a constant torque and can be a helical spring or a clockwork spring to ensure the rope reel tends to wind back. The speed differential controller can be a centrifugal locking mechanism or an electromagnetic induction locking device. By monitoring the rotational speed of the rope reel, it determines the direction of movement of the inspection platform. The system automatically triggers a locking action once the rotation speed exceeds a preset threshold, preventing the rope reel from rotating. This stops the release of the safety rope when the inspection platform falls, allowing the safety rope to hold onto the base 100 and prevent further descent. Under normal conditions, when the base 100 descends, the rope reel rotates to release the safety rope. When the base 100 rises, the safety rope becomes loose. At this time, driven by the constant force spring, the rope reel rewinds, causing the safety rope to be wound back onto the rope reel, preventing the safety rope from becoming slack or difficult to retract. Through the cooperation of the constant force spring and the speed difference controller, the stability of the inspection platform's lifting process and the safety of the operation are ensured.

[0054] In an embodiment of this utility model, the wind farm inspection platform further includes a power supply component, which includes a solar panel 400 and a power management module. The solar panel 400 is rotatably mounted on the top of the base 100. The power management module is electrically connected to the solar panel 400, the detection component 300 and the main control unit respectively, so as to convert the solar energy absorbed by the solar panel 400 into direct current and power the detection component 300.

[0055] Specifically, the solar panel 400 can convert solar radiation energy into electrical energy. It can be a plate structure made of monocrystalline silicon or polycrystalline silicon photovoltaic materials to obtain solar energy. The solar panel 400 is rotatably mounted on the top of the base 100. This is achieved by using an azimuth angle adjustment mechanism controlled by a drive motor to optimize the angle of the solar panel 400 according to the sun's position and maximize the absorption of solar energy. The power management module can use a circuit system including a DC-DC conversion circuit and a battery management chip, as well as a lithium-ion battery pack to ensure stable power output and intelligent distribution. In this embodiment, by rotating the solar panel 400 and mounting it on top of the base 100, the changes in the solar azimuth and elevation angles can be tracked in real time, thereby maximizing the reception of sunlight and converting solar energy into electrical energy. The power management module receives the electrical energy output from the solar panel 400 and converts the fluctuating solar energy into stable DC power through an internal conversion circuit, continuously supplying power to the detection component 300 and the main control unit. Excess electrical energy is stored in the battery pack so that when the sunlight is insufficient and solar energy cannot be absorbed, the battery pack can continuously supply power to the detection component 300 and the main control unit. This avoids the interference of unstable voltage to the sensors in traditional power supply methods, ensuring that the inspection platform can maintain power self-sufficiency during long-term outdoor operations, avoiding the interruption of inspection tasks due to power outages, reducing manual intervention, and ensuring efficient inspection of the inspection platform under complex natural conditions.

[0056] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A wind farm inspection platform, characterized in that, include: Base; A traveling mechanism is located below the base, and the traveling mechanism is used to drive the base to move on the surface of the tower. The detection assembly includes a telescopic arm and a detection sensor disposed at one end of the telescopic arm. The detection sensor is used to detect defects on the surface of the tower. The telescopic arm is omnidirectionally mounted on the base so that the distance between the detection sensor and the base can be adjusted as the telescopic arm extends and retracts. as well as A shock-absorbing assembly connects the base and the walking mechanism.

2. The wind farm inspection platform as described in claim 1, characterized in that, The detection component also includes: A mounting plate is provided above the base, and the end of the telescopic arm away from the detection sensor is hinged to the mounting plate; A rotating component is provided on the base, and the output end of the rotating component is driven to drive the mounting plate to rotate. A linear motion module includes a fixed end and a telescopic end connected to each other. The fixed end is hinged to the mounting plate, and the telescopic end is hinged to the telescopic arm so as to adjust the pitch angle of the telescopic arm by extending or retracting the telescopic end.

3. The wind farm inspection platform as described in claim 2, characterized in that, The telescopic arm includes a cylinder and a connecting rod. The fixed part of the cylinder is hinged to the mounting plate, and the connecting rod is installed on the piston rod of the cylinder so that the extension and retraction of the connecting rod are driven by the extension and retraction of the piston rod.

4. The wind farm inspection platform as described in claim 2, characterized in that, The detection sensor includes at least one of a camera, an infrared thermal imager, a laser rangefinder, an ultrasonic probe, a lighting lamp, and an environmental sensor.

5. The wind farm inspection platform as described in claim 1, characterized in that, The traveling mechanism includes a floating connecting frame and two opposing traveling units. The floating connecting frame is mounted on the base and is used to connect the two traveling units. Each traveling unit includes: Drive motor; A wheel assembly, wherein the drive motor is connected to the wheel assembly to drive the wheel assembly to rotate; An annular track is fitted around the outer circumference of the wheel assembly so that the rotation of the wheel assembly drives the annular track to move. A permanent magnet adsorption module is located on the inner side of the annular track and faces the surface of the tower. It is used to adsorb onto the tower by penetrating the annular track through a magnetic field.

6. The wind farm inspection platform as described in claim 5, characterized in that, The shock-absorbing component is configured as a spring and is located between the floating connecting frame and the base.

7. The wind farm inspection platform as described in claim 5, characterized in that, The wind farm inspection platform also includes a positioning component, which includes: An attitude measurement unit is disposed on the base, and the measurement unit is used to measure the three-dimensional attitude of the walking mechanism; An encoder, located on the output shaft of the drive motor, is used to detect the number of rotations of the annular track; A visual marker sensor is disposed on the base, and the visual marker sensor is used to identify information markers on the tower.

8. The wind farm inspection platform as described in claim 1, characterized in that, The wind farm inspection platform also includes a deployment and retrieval component, which includes: A locking structure is located at the top flange of the tower. A safety rope, one end of which is wound inside the locking structure, and the other end of which is connected to the base; The locking structure has a locked state and a released state. In the released state, the safety rope is freely pulled out or rolled back as the base rises and falls. In the locked state, the safety rope stops being pulled out.

9. The wind farm inspection platform as described in claim 8, characterized in that, The locking structure includes: The shell is fixed to the tower cylinder; A rope winder is rotatably mounted inside the housing, and the safety rope is wound around the rope winder; A constant force coil spring, with one end connected to the housing and the other end connected to the rope reel, is used to provide a rewinding force after the safety rope is pulled out, so that the rope reel has a tendency to rewind. The speed difference controller is installed inside the housing and is driven by the winding wheel.

10. The wind farm inspection platform as described in any one of claims 1-9, characterized in that, The wind farm inspection platform also includes a power supply component, which includes a solar panel and a power management module. The solar panel is rotatably mounted on the top of the base, and the power management module is electrically connected to the solar panel and the detection component to convert the solar energy absorbed by the solar panel into direct current and power the detection component.

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