A light-curing device for wind turbine blades

Abstract

This application relates to the field of wind turbine blade technology and discloses a photocuring device for wind turbine blades, including a movable support and a light source module. The movable support includes a fixed section and a telescopic section movably connected to the fixed section. A first set of wheels with directional sliding is provided on the fixed section, and a second set of wheels with universal sliding is provided at the end of the telescopic section away from the fixed section. The light source module includes multiple light source elements, which are used to generate and converge ultraviolet light. The light source elements are suspended on the movable support by several connecting chains. Each connecting chain has multiple lifting rings along its length, and the lifting rings can be connected to the movable support or the light source elements to form assembly points. This application adapts to the curved surface structure inside the wind turbine blade by adjusting the telescopic movement of the movable support and cooperating with the wheel sets. It uses connecting chains to achieve flexible assembly and positioning of the light source module on the movable support, and uses ultraviolet light generated by the light source module for rapid photocuring, thereby improving the efficiency of damage repair and maintenance of wind turbine blades and reducing the difficulty of maintenance.

Description

Technical Field

[0001] This application relates to the field of wind turbine blade technology, and in particular to a photocuring device for wind turbine blades. Background Technology

[0002] Wind turbine blades are key components of wind turbine generators. They are constantly exposed to harsh environments such as lightning, hail, dust storms, and alternating high and low temperatures, making them susceptible to varying degrees of damage. Repairs by maintenance personnel are necessary to prevent more serious accidents. Currently, wind turbine blade repair primarily employs hand lay-up or vacuum infusion processes using epoxy resin combined with glass fiber. These processes require heating and curing the epoxy resin, typically taking 6-24 hours, resulting in a long repair cycle. Furthermore, the harsh operating environment of wind farms and limited high-altitude weather windows further complicate the repair process. Existing ultraviolet (UV) curing technology can significantly improve the curing process of epoxy resin; however, current UV curing equipment is mostly designed for industrial production lines or flat surfaces, making it difficult to meet the needs of large curved structures and high-altitude confined spaces in wind turbine blade operations. Moreover, the equipment is cumbersome to carry and operate, failing to meet the technical upgrade and maintenance requirements of wind turbine blades in wind farms.

[0003] Therefore, how to improve the efficiency of wind turbine blade damage repair and maintenance and reduce the difficulty of maintenance is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a photocuring device for wind turbine blades to improve the efficiency of damage repair and maintenance of wind turbine blades and reduce the difficulty of maintenance.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A photocuring device for wind turbine blades, comprising:

[0007] A movable support, comprising a fixed section and a telescopic section movably connected to the fixed section, wherein the fixed section is provided with a first set of wheels for directional sliding, and the telescopic section is provided with a second set of wheels for universal sliding at the end away from the fixed section;

[0008] A light source module includes multiple light source elements, which are used to generate and focus ultraviolet light. The light source elements are suspended from the movable bracket by several connecting chains. Each connecting chain has multiple lifting rings along its length. The lifting rings can be connected to the movable bracket and / or the light source elements to form an assembly point.

[0009] Preferably, in the above-mentioned photopolymerization device for wind turbine blades, the light source module includes a suspension bracket that supports each of the light source components. The suspension bracket is composed of a plurality of suspension units that are hinged and equipped with locking units. One end of the suspension bracket is fixed to the fixed section, and at least a portion of the suspension units of the suspension bracket are respectively connected to the movable bracket through the connecting chain.

[0010] Preferably, in the above-mentioned photocuring device for wind turbine blades, locking rings are fixedly installed on the movable support and the suspension unit, and a single connecting chain is fixedly connected to two locking rings.

[0011] Preferably, in the above-mentioned photocuring device for wind turbine blades, the fixing section includes two fixing rods and extension rods that correspond one-to-one with the fixing rods and are set at a preset obtuse angle to the fixing rods. The two extension rods are located in the same plane to abut against the planar area inside the wind turbine blade.

[0012] Preferably, in the above-mentioned photocuring device for wind turbine blades, the first wheel set includes two directional wheels, the directional wheels are disposed at the end of the extension rod away from the fixed rod, and the axis of the directional wheels is perpendicular to the plane formed by the two extension rods.

[0013] Preferably, in the above-mentioned photocuring device for wind turbine blades, a cross-arranged reinforcing rod assembly is connected between the two fixed rods.

[0014] Preferably, in the above-mentioned photocuring device for wind turbine blades, the telescopic section includes at least two telescopic rods, each telescopic rod having at least two stages of telescopic sleeves, and adjacent sleeves being slidably fitted and provided with a threaded locking structure.

[0015] Preferably, in the above-mentioned photocuring device for wind turbine blades, the telescopic rod includes an inner sleeve and an outer sleeve;

[0016] The inner sleeve and the outer sleeve are provided with corresponding locking holes along the length direction. When the locking holes on the inner sleeve and the outer sleeve are aligned, the threaded locking structure passes through and locks the telescopic rod. Alternatively, the outer sleeve is provided with a locking hole along the length direction, and the threaded locking structure passes through the locking hole during the sliding of the inner sleeve and continuously locks the telescopic rod.

[0017] Preferably, in the above-mentioned photocuring device for wind turbine blades, the second wheel set includes at least two omnidirectional wheels, which are disposed at the end of the telescopic section away from the fixed section. The second wheel set cooperates with the first wheel set to enable the movable support to adapt to the curved shape of the wind turbine blade and slide along the curved shape.

[0018] Preferably, in the above-mentioned photopolymerization device for wind turbine blades, the light source module further includes:

[0019] A heat dissipation substrate and a heat dissipation fan, wherein the heat dissipation fan is disposed on the heat dissipation substrate, and the heat dissipation substrate is used to conduct heat out of the chip of the light source and exhaust it by the heat dissipation fan;

[0020] A temperature sensor is used to monitor the surface temperature of the light source module in real time. The temperature sensor triggers overheat protection when the temperature exceeds a set threshold.

[0021] Preferably, the above-mentioned photocuring device for wind turbine blades further includes a control system, which is electrically connected to the light source module. The control system includes a power regulator and a timer for adjusting the output power and irradiation time of the light source module.

[0022] Preferably, in the above-mentioned photocuring device for wind turbine blades, the light source further includes an optical lens or a reflector, which is used to uniformly focus the ultraviolet light emitted by the light source onto the maintenance area of ​​the wind turbine blade.

[0023] Preferably, the above-mentioned photocuring device for wind turbine blades further includes a portable power supply, and each of the light sources is provided with a connector, the portable power supply being used to supply power to the light source.

[0024] As can be seen from the above technical solution, one aspect of this disclosure provides a photocuring device for wind turbine blades, which mainly includes a movable support and a light source module. The movable support is configured to include a fixed section and a telescopic section movably connected thereto, so that the overall length of the movable support can be adaptively adjusted according to the cross-sectional dimensions of the internal cavity of wind turbine blades of different specifications, thereby expanding the applicability of the photocuring device. Simultaneously, a first set of directional sliding wheels is configured in the fixed section, and a second set of universal sliding wheels is configured in the telescopic section. The directional wheels ensure stable guidance of the movable support along a specific direction, while the universal wheels allow the telescopic section to flexibly turn according to the curved shape of the wind turbine blade. The combination of these two allows the movable support to achieve stable movement and precise positioning on the large curved surface within the blade. The movable support provides a load-bearing foundation adapted to the curved surface and has a simple adjustment method. This design allows operators to manually adjust the position of the UV curing device within the wind turbine blade, enhancing its portability and ease of use. The light source module comprises multiple light sources that generate and converge ultraviolet light. These light sources are suspended from a mobile support via connecting chains, and multiple lifting rings distributed along the length of the connecting chains create different assembly points. This allows the light source module to flexibly select its installation position based on the size, shape, and curing requirements of the maintenance area. In particular, the multiple light sources can be adjusted via their respective connecting chains to form an arc-shaped curved surface structure, which is more suitable for the arc-shaped inner wall area of ​​the wind turbine blade. Furthermore, by adjusting the distribution density and irradiation range of the light sources, efficient and uniform UV curing of the epoxy resin-coated adhesive area can be achieved, significantly improving the on-site maintenance efficiency of wind turbine blades and reducing the difficulty of maintenance. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a photocuring device for wind turbine blades provided in an embodiment of the present disclosure;

[0027] Figure 2 This is a side view of a photopolymerization apparatus for wind turbine blades provided according to an embodiment of the present disclosure;

[0028] Figure 3 for Figure 2 Detailed map of area A in the document;

[0029] Figure 4 This is a schematic diagram of a movable support structure provided in an embodiment of the present disclosure;

[0030] Figure 5 This is a schematic diagram of the back structure of a photopolymerization device for wind turbine blades provided in an embodiment of the present disclosure;

[0031] Figure 6 This is a schematic diagram of one side structure of a light source element provided in an embodiment of the present disclosure;

[0032] Figure 7 This is a schematic diagram showing the location of the internal cooling fan of a light source component according to an embodiment of the present disclosure.

[0033] in:

[0034] 10-Moving bracket; 110-Fixed section; 1110-Fixed rod; 1120-Extension rod; 120-Telescopic section; 1210-Telescopic rod; 130-First wheel assembly; 1310-Directional wheel; 140-Second wheel assembly; 1410-Universal wheel; 150-Reinforcing rod assembly; 20-Light source module; 210-Light source component; 2110-Connector; 220-Suspension bracket; 2210-Suspension unit; 230-Heat dissipation base plate; 240-Heat dissipation fan; 30-Connecting chain; 310-Lifting ring; 40-Locking ring; 50-Portable power supply. Detailed Implementation

[0035] The core of this application is to disclose a photocuring device for wind turbine blades, so as to improve the efficiency of damage repair and maintenance of wind turbine blades and reduce the difficulty of maintenance.

[0036] To enable those skilled in the art to better understand the present application, embodiments of the present application will be described below with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the invention as described in the claims. Additionally, the complete contents of the structures represented in the following embodiments are not limited to those necessary for the solution of the invention described in the claims.

[0037] like Figure 1 , Figure 2 and Figure 3As shown, this disclosure provides a UV curing device for wind turbine blades, used to perform ultraviolet light curing on areas of wind turbine blades bonded with epoxy resin inside the blades. Specifically, the UV curing device for wind turbine blades mainly comprises two parts: a movable support 10 and a light source module 20. The movable support 10 serves as the main support and motion bearing structure of the entire device, including a fixed section 110 and a telescopic section 120 movably connected to the fixed section 110. The fixed section 110, being the end closest to the operator, has high structural strength and a fixed structural shape, forming a gripping area or for installing gripping components, allowing the operator to access or move the movable support 10 through the fixed section 110. Simultaneously, the fixed section 110 provides a reliable connection base for the telescopic section 120, which can extend or retract relative to the fixed section 110, allowing the movable support 10 to adjust its support area to adapt to changes in the depth of the internal cavity of wind turbine blades of different specifications. This makes the device suitable for maintenance scenarios of various blade models.

[0038] Based on the above structure, a first set of directional sliding wheels 130 is provided on the fixed section 110. The first set of sliding wheels 130 slides on the blade surface in a predetermined direction. Typically, the sliding direction of the first set of sliding wheels 130 is the length direction of the wind turbine blade, so as to provide a stable linear guiding function for the photocuring device and avoid deviation during movement. At the end of the telescopic section 120 away from the fixed section 110, a second set of omnidirectional sliding wheels 140 is provided. The second set of sliding wheels 140 can freely turn at multiple angles relative to the telescopic section 120 to adapt to the curvature changes of the inner cavity of the wind turbine blade. Preferably, the second set of sliding wheels 140 has a locking structure to lock its sliding function. The first set of sliding wheels 130 and the second set of sliding wheels 140 cooperate with each other, so that the entire moving support 10 can move stably on the large curved surface structure of the blade and be accurately positioned at the target position.

[0039] The light source module 20 includes multiple light source elements 210, each of which generates and focuses ultraviolet light to irradiate the repair area coated with epoxy resin, achieving rapid photocuring. It is particularly important to note that... Figure 2 and Figure 3As shown, each light source component 210 is suspended on the movable bracket 10 via several connecting chains 30. The connecting chains 30 have a certain length margin to provide suspension support for the light source components 210. Each connecting chain 30 has multiple lifting rings 310 along its length. The lifting rings 310 are interlocked on the connecting chain 30 to form multiple installation positions along the length of the connecting chain 30. Specifically, the lifting rings 310 can be connected to one or both of the movable bracket 10 and the light source components 210 to form assembly points. Operators can select to connect the lifting rings 310 at different positions on the connecting chain 30 to the corresponding parts of the movable bracket 10 or the light source components 210 according to the size, shape, and location requirements of the maintenance area, thereby adjusting the hoisting angle of the corresponding light source components 210. This changes the overall coverage and irradiation angle of the light source module 20, making it suitable for the curved wall area of ​​the wind turbine blade, ensuring that ultraviolet rays can be uniformly and efficiently irradiated on the maintenance area to be cured on the curved surface.

[0040] The photocuring device for wind turbine blades provided in this embodiment uses the cooperation structure of the fixed section 110 and the telescopic section 120 of the movable support 10 to allow the movable support 10 to be easily moved and adjusted to the area to be photocured inside the wind turbine blade. Combined with the installation structure of the lifting ring 310 of the connecting chain 30, the light source 210 located in different positions can adjust the irradiation angle and position according to the requirements, thereby making it applicable to various positions inside the wind turbine blade and improving the versatility of the photocuring device.

[0041] Furthermore, in the photopolymerization device for wind turbine blades provided in this embodiment, the light source module 20 specifically includes a suspension bracket 220 that supports each light source component 210, so that the light source components 210 can be assembled and installed through the suspension bracket 220. Specifically, the suspension bracket 220 is a foldable rod-shaped frame structure, which is composed of several suspension units 2210. Each suspension unit 2210 is connected to each other by a hinge, and a locking unit is provided at the hinge. When the suspension bracket 220 is unfolded to a suitable angle and shape, the relative position of adjacent suspension units 2210 can be fixed by the locking unit to prevent loosening and deformation during use. One end of the suspension bracket 220 is fixed to the fixed section 110, and extends outwards towards the maintenance area of ​​the blade using this as a fulcrum. At least some of the suspension units 2210 of the suspension bracket 220 are connected to the movable bracket 10 via connecting chains 30. Specifically, when the suspension bracket 220 is deployed, some of its suspension units 2210 are suspended at different positions on the movable bracket 10 via connecting chains 30. The flexible constraint of the connecting chains 30 keeps the suspension bracket 220 in the deployed state. At the same time, the relative angles of each suspension unit 2210 can be adjusted as needed so that each light source 210 can be supported in different directions. Furthermore, by connecting different hanging rings 310 of the connecting chains 30 with the suspension units 2210, the deployment angle and suspension height of the suspension bracket 220 can be kept constant, thereby changing the illumination distance and coverage area of ​​the light source 210 relative to the maintenance area. The structure of the suspension bracket 220 provides the light source component 210 with a stable load-bearing foundation and allows for curvature changes through the adjustment of the suspension bracket 220, making it more compatible with the curved surface structure of wind turbine blades and reducing the difficulty of adjusting the angle of the light source component 210.

[0042] In some embodiments of this disclosure, six groups of light source elements 210 are provided, which has a sufficient extended illumination range. At the same time, each group of light source elements 210 includes at least two light-emitting elements to serve as backups for each other and avoid the problem of the light source element 210 becoming unusable due to the failure of a single light-emitting element.

[0043] Based on the above embodiments, locking rings 40 are fixedly installed on the movable support 10 and the suspension unit 2210, respectively. The locking rings 40 are metal ring structures and are fixed to the outer wall of the movable support 10 and the side wall of the suspension unit 2210 by welding or bolting. The single connecting chain 30 is fixed with two locking rings 40 by two lifting rings 310. That is, one locking ring 40 is set on the movable support 10 and the other locking ring 40 is set on the corresponding suspension unit 2210. The structure of the locking rings 40 makes the connecting chain 30 form a reliable closed-loop connection with the movable support 10 and the suspension unit 2210. During assembly, the operator can select the locking rings 40 at different positions on the movable support 10 and the corresponding locking rings 40 on the suspension unit 2210 to overlap the connecting chain 30 according to the location and size of the maintenance area, and select the lifting rings 310 to be installed on the connecting chain 30 as needed, thereby realizing flexible adjustment of the unfolded shape of the suspension support 220. Meanwhile, the locking ring 40 ensures that the connecting chain 30 will not slip when bearing the weight of the light source component 210 or when subjected to external disturbances, thus ensuring the positional stability and safety of the light source module 20 during operation.

[0044] Furthermore, in the photocuring device for wind turbine blades provided in this embodiment, the fixing section 110 includes two parallel fixing rods 1110 and extension rods 1120 corresponding to and connected to the fixing rods 1110. The two fixing rods 1110 are arranged in parallel and maintain a certain distance to form a stable frame foundation. Each extension rod 1120 is set at a preset obtuse angle to the corresponding fixing rod 1110. It should be noted that the obtuse angle is usually between 100 degrees and 135 degrees, so that the extension rod 1120 can extend in an inclined direction away from the operator. The two extension rods 1120 are located in the same plane, which can abut against the planar area inside the wind turbine blade, such as the plane where the blade web or reinforcing rib is located, when the device is working, thereby providing a stable support foundation for the entire movable support 10. The aforementioned structure allows the fixed section 110 to be positioned to conform to the internal structural features of the blade. The two fixed rods 1110 provide the operator with a gripping and force-applying space, while the extension rod 1120 extends forward and contacts the planar support area of ​​the blade, forming a lever-like support structure. When the operator applies pushing or pulling force to the fixed rods 1110, the first wheel assembly 130 slides on the blade surface. The contact between the extension rod 1120 and the planar area of ​​the blade ensures that the movable support 10 will not tip over or shake during movement, improving the stability and maneuverability of the device in large curved surface working environments.

[0045] To further optimize the above technical solution, in some embodiments of this disclosure, the first wheel group 130 includes two directional wheels 1310. The two directional wheels 1310 are respectively disposed at the ends of the two extension rods 1120 away from the fixed rod 1110. The directional wheels 1310 rotate around the wheel axle, and their rotation direction is constrained by the axis of the wheel axle. They can only roll in a plane perpendicular to the wheel axle. It should be noted that the axis of the directional wheel 1310 is perpendicular to the plane formed by the two extension rods 1120, so that the rolling direction of the directional wheel 1310 is parallel to the plane where the extension rods 1120 are located. When the two extension rods 1120 are located in the same plane and abut against the planar area of ​​the blade, the axis of the directional wheel 1310 is perpendicular to the plane, so that the directional wheel 1310 can slide stably along the preset direction of the blade surface. This ensures that the moving bracket 10 has clear guidance when moving on the blade surface. The operator can control the direction of movement by adjusting the angle of the extension rods 1120. The synchronous rolling of the two directional wheels 1310 avoids the deflection and deviation of the device, providing a stable movement trajectory for the light source module 20 and ensuring the continuity and uniformity of ultraviolet irradiation.

[0046] Furthermore, it should be noted that, in order to improve the structural stability of the movable support 10, such as... Figure 4 and Figure 5 As shown, a cross-arranged reinforcing rod assembly 150 connects the two fixed rods 1110. The reinforcing rod assembly 150 consists of two rods arranged crosswise, with the intersection point typically located in the middle region of the two fixed rods 1110. The four ends of the two rods are fixedly connected to different positions on the two fixed rods 1110, forming an X-shaped support structure. It should be noted that the reinforcing rod assembly 150 can be made of the same high-strength, lightweight alloy material as the fixed rods 1110, ensuring structural rigidity while controlling the overall weight. This cross-arranged reinforcing rod assembly 150 effectively improves the overall structural strength and torsional stiffness of the fixed section 110. When the operator applies a thrust or pull force to the fixed rods 1110 to drive the device to move on the blade surface, the reinforcing rod assembly 150 can evenly transmit the load, preventing relative deformation or twisting of the two fixed rods 1110.

[0047] Furthermore, in the photocuring device for wind turbine blades provided in this embodiment, the telescopic section 120, corresponding to the fixed section 110, includes at least two telescopic rods 1210. Each telescopic rod 1210 is arranged in parallel and shares the load. Each telescopic rod 1210 has at least two telescopic sleeves. The sleeves are hollow tubular structures. Adjacent sleeves are nested together by sliding fit, so that the inner sleeve can slide freely along the axial direction in the outer sleeve, thereby realizing the adjustment of the overall length of the telescopic rod 1210.

[0048] Based on this, a threaded locking structure is provided at the mating parts between adjacent sleeves. When the sleeves are extended or retracted to the appropriate length, the relative positions of the adjacent sleeves are fixed by the threaded locking structure to prevent retraction or shaking during operation. It should be noted that the multi-stage sleeve-type telescopic structure allows the telescopic section 120 to maintain a small volume in the retracted state, facilitating transportation and operation in the limited space inside the blade, while obtaining a long support span in the extended state to adapt to the internal cavities of blades at different depths. The parallel arrangement of at least two telescopic rods 1210 ensures that the telescopic section 120 has sufficient load-bearing capacity and bending stiffness, so that even when a single light source 210 is heavy or multiple light source 210s are working simultaneously, the telescopic section 120 can maintain a stable support state.

[0049] Based on the above embodiments, the telescopic rod 1210 specifically includes an inner sleeve and an outer sleeve, wherein the outer diameter of the inner sleeve is slightly smaller than the inner diameter of the outer sleeve to achieve a sliding fit between the two. In some embodiments of this disclosure, the inner sleeve and the outer sleeve are provided with locking holes along the length direction. The locking holes are through holes. When the inner sleeve slides to the required length position in the outer sleeve, the locking holes on the inner sleeve and the outer sleeve are aligned, and then the threaded locking structure passes through the aligned locking holes and is tightened, thereby locking and fixing the relative position of the inner sleeve and the outer sleeve. This structure can achieve stepped adjustment, and the step size of each adjustment is determined by the spacing of the locking holes.

[0050] In other embodiments of this disclosure, the outer sleeve has a locking hole along its length, while the inner sleeve maintains a planar structure without holes. During the sliding of the inner sleeve, the threaded locking structure can pass through the locking hole and abut against and lock the inner sleeve at any position. This structure does not require precise alignment of the locking hole of the inner sleeve with the locking hole of the outer sleeve. The threaded locking structure can pass through the locking hole and abut against and lock the inner sleeve at any position when the inner sleeve slides, thus realizing stepless locking of the telescopic rod 1210. This achieves stepless adjustment of the telescopic length, allowing the operator to make continuous and precise length adjustments according to the actual depth of the internal cavity of the blade, improving the adaptability and ease of operation of the device.

[0051] Furthermore, in the photocuring device for wind turbine blades provided in this embodiment, the second wheel group 140 includes at least two casters 1410. The casters 1410 are located at the end of the telescopic section 120 away from the fixed section 110, i.e., at the end of the outermost sleeve of the telescopic rod 1210. The wheel body of the caster 1410 can rotate around an axle perpendicular to the wheel surface. At the same time, the connection between the wheel body and the bracket can also rotate 360 ​​degrees horizontally around the vertical axis, thereby achieving free steering in any direction. Based on this, the second wheel group 140 and the first wheel group 130 work together. The directional wheel 1310 of the first wheel group 130 provides stable guidance in a specific direction to ensure that the device moves in a straight line along the maintenance path. The casters 1410 of the second wheel group 140 allow the telescopic section 120 to automatically adjust its direction of travel under the action of the blade surface curvature, conforming to the curvature change of the blade surface. When the mobile support 10 moves on the large curved surface of the wind turbine blade, the coordinated operation of the first wheel group 130 and the second wheel group 140 enables the mobile support 10 to maintain the stability of the overall movement direction, adapt to the curved surface, and slide along the curved surface, thus avoiding jamming or derailment at the transition point of the curved surface.

[0052] Furthermore, such as Figure 6 and Figure 7 As shown in the embodiment of this disclosure, the light source module 20 further includes a heat dissipation substrate 230 and a cooling fan 240. The heat dissipation substrate 230 is made of aluminum alloy with high thermal conductivity and is attached to the back of the chip of the light source component 210 to quickly dissipate the heat generated by the light source component 210 during operation. The cooling fan 240 is disposed on the heat dissipation substrate 230 and dissipates the heat on the heat dissipation substrate 230 to the surrounding environment through forced convection, preventing heat from accumulating inside the light source module 20. Simultaneously, the light source module 20 also includes a temperature sensor attached to key heat-generating areas on the surface of the light source module 20 to monitor the surface temperature of the light source module 20 in real time. It should be noted that the temperature sensor is electrically connected to the control circuit of the light source module 20. When the monitored temperature exceeds a set threshold, the temperature sensor sends a signal to the control circuit to trigger an overheat protection mechanism, such as automatically reducing the output power of the light source or cutting off the power supply, to prevent the light source module 20 from being damaged due to overheating and to avoid thermal damage to the composite material matrix of the wind turbine blade caused by high temperature. The aforementioned heat dissipation and temperature control structure ensures that the light source module 20 can maintain a stable temperature environment during long-term continuous operation, extending the service life of the light source component 210, while also ensuring the quality of blade maintenance and operational safety.

[0053] Furthermore, based on the above structure, to enhance the intelligence of the light source module 20, the photocuring device also includes a control system. Specifically, the control system is electrically connected to the light source module 20 to precisely regulate the operating parameters of the light source component 210. The control system specifically includes a power regulator and a timer. The power regulator is used to adjust the output power of the light source module 20. When repairing wind turbine blades, operators can flexibly adjust the output power of the light source module 20 according to the size of the repair area, the number of fiberglass cloth layers, and the coating thickness of the epoxy resin, to achieve the best curing effect. For areas with thicker layers or larger resin coatings, the output power can be appropriately increased to shorten the curing time; for delicate repair areas, the power can be reduced for gentle irradiation. The timer is used to control the irradiation time of the light source module 20. Operators can preset the irradiation time according to the curing process requirements. The timer automatically turns off the light source after the set time is reached to avoid excessive irradiation leading to resin embrittlement or energy waste. The control system eliminates the reliance on operator experience for the photocuring process. Instead, precise control is achieved through the collaboration of a power regulator and a timer, ensuring consistent curing quality for each maintenance operation. This also avoids under-curing or over-curing issues caused by human error, significantly improving the reliability and quality control of on-site wind turbine blade maintenance.

[0054] Furthermore, in the photocuring device for wind turbine blades provided in this embodiment, the light source 210 also includes an optical lens or a reflector. The optical lens can be a plano-convex lens, a biconvex lens, or an array of microlenses, which is disposed on the light emission path of the light source 210 to collimate and focus the diverging ultraviolet rays. The reflector can be a parabolic reflector or an ellipsoidal reflector, disposed on the back and side of the light source 210 to reflect and converge the ultraviolet rays emitted backward and to the side to the light emission direction. The optical lens or reflector is used to uniformly converge the ultraviolet rays emitted by the light source 210 onto the maintenance area of ​​the wind turbine blade. Through the refraction of the optical lens or the reflection of the reflector, the ultraviolet rays that were originally distributed in a divergent manner are constrained and guided to the maintenance area to be cured, making the light intensity distribution within the irradiation range more uniform. This avoids the problem of excessive light intensity in the central area and insufficient light intensity in the edge area, reducing the risk of affecting the overall strength and durability of the repair layer due to insufficient local curing, thereby ensuring the reliability of the wind turbine blade maintenance quality.

[0055] Furthermore, such as Figure 5As shown, in some embodiments of this disclosure, the photocuring device also includes a portable power supply 50. The portable power supply 50 is a portable battery pack or mobile power source, characterized by its small size and light weight, making it convenient for operators to carry and move in high-altitude working environments. Correspondingly, each light source element 210 is provided with a connector 2110, which can be a quick-plug electrical connector. The portable power supply 50 is used to supply power to the light source element 210. The operator places the portable power supply 50 in a stable position inside the blade or hangs it on their person, connecting the portable power supply 50 to the connectors 2110 of each light source element 210 via cables, thus providing independent operating power to the light source module 20. This power supply method eliminates dependence on fixed power grids or long-distance cables, making it particularly suitable for high-altitude wind farm operations, reducing the inconvenience and safety hazards caused by cable dragging. Meanwhile, since each light source component 210 is independently equipped with a connector 2110, when a certain light source component 210 fails, it can be replaced individually without affecting the normal operation of other light source components 210, thus improving the maintainability and flexibility of the device in harsh field environments.

[0056] The terms "first," "second," "left side," and "right side," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units may not be defined in the listed steps or units, but may include steps or units not listed.

[0057] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A photocuring device for wind turbine blades, characterized in that, include: The movable support (10) includes a fixed section (110) and a telescopic section (120) movably connected to the fixed section (110). The fixed section (110) is provided with a first set of wheels (130) for directional sliding, and the telescopic section (120) is provided with a second set of wheels (140) for universal sliding at one end away from the fixed section (110). The light source module (20) includes multiple light source elements (210), which are used to generate and converge ultraviolet rays. The light source elements (210) are suspended from the movable bracket (10) by a number of connecting chains (30). Each connecting chain (30) has multiple lifting rings (310) along its length. The lifting rings (310) can be connected to the movable bracket (10) and / or the light source elements (210) to form an assembly point.

2. The photocuring device for wind turbine blades as described in claim 1, characterized in that, The light source module (20) includes a suspension bracket (220) that carries each of the light source components (210). The suspension bracket (220) is composed of a plurality of suspension units (2210) that are hinged and equipped with locking units. One end of the suspension bracket (220) is fixed to the fixed section (110). At least a portion of the suspension units (2210) of the suspension bracket (220) are connected to the movable bracket (10) through the connecting chain (30).

3. The photocuring device for wind turbine blades as described in claim 2, characterized in that, Locking rings (40) are fixedly provided on the movable support (10) and the suspension unit (2210), and a single connecting chain (30) is fixedly connected to two locking rings (40).

4. The photocuring device for wind turbine blades as described in claim 1, characterized in that, The fixed section (110) includes two fixed rods (1110) and an extension rod (1120) that corresponds one-to-one with the fixed rods (1110) and is set at a preset obtuse angle to the fixed rods (1110). The two extension rods (1120) are located in the same plane to abut against the planar area inside the wind turbine blade.

5. The photocuring device for wind turbine blades as described in claim 4, characterized in that, The first wheel assembly (130) includes two directional wheels (1310), which are located at the end of the extension rod (1120) away from the fixed rod (1110), and the axis of the directional wheel (1310) is perpendicular to the plane formed by the two extension rods (1120).

6. The photocuring device for wind turbine blades as described in claim 4, characterized in that, A cross-arranged reinforcing rod assembly (150) is connected between the two fixed rods (1110).

7. The photopolymerization device for wind turbine blades as described in claim 1, characterized in that, The telescopic section (120) includes at least two telescopic rods (1210), each of the telescopic rods (1210) having at least two telescopic sleeves, with adjacent sleeves slidingly engaged and provided with a threaded locking structure.

8. The photocuring device for wind turbine blades as described in claim 7, characterized in that, The telescopic rod (1210) includes an inner sleeve and an outer sleeve; The inner sleeve and the outer sleeve are provided with corresponding locking holes along the length direction. When the locking holes on the inner sleeve and the outer sleeve are aligned, the threaded locking structure passes through and locks the telescopic rod (1210). Alternatively, the outer sleeve is provided with locking holes along the length direction. The threaded locking structure passes through the locking holes during the sliding of the inner sleeve and continuously locks the telescopic rod (1210).

9. The photopolymerization device for wind turbine blades as described in claim 7, characterized in that, The second wheel set (140) includes at least two casters (1410), which are located at the end of the telescopic section (120) away from the fixed section (110). The second wheel set (140) cooperates with the first wheel set (130) to enable the movable support (10) to adapt to the curved shape of the wind turbine blade and slide along the curved shape.

10. The photopolymerization device for wind turbine blades as described in claim 1, characterized in that, The light source module (20) also includes: A heat dissipation substrate (230) and a heat dissipation fan (240) are provided on the heat dissipation substrate (230). The heat dissipation substrate (230) is used to conduct heat out of the chip of the light source (210) and exhaust it by the heat dissipation fan (240). A temperature sensor is used to monitor the surface temperature of the light source module (20) in real time. The temperature sensor triggers overheat protection when the temperature exceeds a set threshold.

11. The photopolymerization device for wind turbine blades as described in claim 10, characterized in that, It also includes a control system electrically connected to the light source module (20), the control system including a power regulator and a timer for adjusting the output power and irradiation time of the light source module (20).

12. The photopolymerization device for wind turbine blades as described in claim 10, characterized in that, The light source (210) also includes an optical lens or a reflector, which is used to uniformly focus the ultraviolet light emitted by the light source (210) onto the maintenance area of ​​the wind turbine blade.

13. The photopolymerization device for wind turbine blades as described in claim 1, characterized in that, It also includes a portable power supply (50), each of the light source elements (210) is provided with a connector (2110), the portable power supply (50) is used to supply power to the light source elements (210).

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