Spray coating type super-hydrophilic coating robot

Abstract

The invention relates to the technical field of intelligent coating equipment, and discloses a spray coating type super-hydrophilic coating robot which comprises an upper power set, a coating machine body and a lower power set, the upper power set and the lower power set are oppositely arranged up and down, and the coating machine body is connected between the upper power set and the lower power set. The coating machine body comprises an aluminum frame, a spraying system, a coating system and a floating pressing plate system, the spraying system, the coating system and the floating pressing plate system are all installed on the aluminum frame, the spraying system communicates with the coating system, and the floating pressing plate system is arranged on the side, away from the photovoltaic panel, of the coating system and abuts against the coating system; the spraying system is used for supplying super-hydrophilic paint to the coating system, the coating system is used for making contact with the surface of a photovoltaic panel and conducting coating, the floating pressing plate system is used for adjusting the contact state between the coating system and the photovoltaic panel in the walking process of the robot, and the coating process is kept stable.

Description

Technical Field

[0001] This invention belongs to the field of intelligent coating equipment technology, specifically relating to a spray coating type superhydrophilic coating robot. Background Technology

[0002] With the continuous growth of installed photovoltaic power generation capacity nationwide, the operation and maintenance issues of large-scale photovoltaic power plants are becoming increasingly prominent. Among these issues, photovoltaic modules are susceptible to dust, pollutants, and other contaminants during long-term operation, leading to a decrease in light transmittance and thus reducing power generation efficiency.

[0003] To enhance the self-cleaning ability of photovoltaic modules, superhydrophilic nano-coatings are widely used on the surface of these modules. These coatings can form a uniform water film on the module surface, reducing dust adhesion and improving cleaning efficiency. However, in practical applications for retrofitting existing power plants, current coating methods mainly include manual coating and fixed spraying equipment, which have the following problems:

[0004] On the one hand, manual coating is greatly affected by the operator's experience, making it difficult to ensure the uniformity and consistency of the coating on large-area photovoltaic modules. This can easily lead to excessive or insufficient coating in certain areas, thus affecting the overall performance. On the other hand, fixed equipment has poor adaptability and is difficult to deploy flexibly in complex terrain or large-scale array scenarios. At the same time, its paint utilization rate is low during the spraying process, resulting in waste.

[0005] Furthermore, during the actual coating process, due to the microscopic unevenness and splicing errors on the surface of photovoltaic modules, the contact state between the coating device and the module surface and the coating spreading state are prone to change, which in turn leads to uneven coating thickness, local accumulation or insufficient coverage, affecting the coating quality and service life.

[0006] Therefore, how to achieve uniform coating under stable contact conditions on the surface of photovoltaic modules and effectively adjust the coating state during mobile operations to improve coating uniformity and material utilization has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] This invention provides a spray coating superhydrophilic coating robot, which solves the technical problem of improving coating uniformity during the coating process on the surface of photovoltaic modules in related technologies.

[0008] This invention provides a spray-coating type superhydrophilic coating robot, including an upper power unit, a coating body, and a lower power unit. The upper and lower power units are arranged vertically opposite each other, and the coating body is connected between the upper and lower power units. The upper and lower power units respectively abut against the upper and lower frames of a photovoltaic panel to drive the robot to move along the length of the photovoltaic panel. The coating body includes an aluminum frame, a spray system, a coating system, and a floating pressure plate system. The spray system, coating system, and floating pressure plate system are all installed on the aluminum frame. The spray system is connected to the coating system and is used to supply superhydrophilic coating to the coating system. The coating system is located at the bottom of the aluminum frame and is used to contact the surface of the photovoltaic panel for coating. The floating pressure plate system is located on the side of the coating system away from the photovoltaic panel and abuts against the coating system to adjust the contact state between the coating system and the photovoltaic panel during the robot's movement.

[0009] In a preferred embodiment, a rotary handle and a worm gear are mounted on the aluminum frame. The rotary handle is connected to the worm end of the worm gear, and the worm end of the worm gear is connected to the coating system. An upper drive shaft and a lower rotating shaft are also mounted on the aluminum frame. The upper drive shaft and the lower rotating shaft are connected by an intermediate wheel and a first coupling.

[0010] In a preferred embodiment, the upper power unit includes an upper power housing, in which an upper power motor and an upper reducer are installed. The output end of the upper power motor is connected to the input end of the upper reducer, and the output end of the upper reducer is connected to the upper drive wheel. The upper drive wheel extends out of the bottom of the upper power housing and abuts against the upper frame of the photovoltaic panel. An upper guide wheel and an auxiliary wheel are also installed on the upper power housing. The upper guide wheel and the auxiliary wheel roll in cooperation with the side of the photovoltaic panel frame for guidance.

[0011] In a preferred embodiment, the lower power unit includes a lower power housing, in which a lower power motor and a lower reducer are installed. The output end of the lower power motor is connected to the input end of the lower reducer, and the output end of the lower reducer is connected to the lower drive wheel via a coupling. The lower drive wheel extends out of the upper part of the lower power housing and abuts against the lower edge of the photovoltaic panel. A lower guide wheel is installed on the lower power housing via a guide wheel seat, and the lower guide wheel is elastically connected to the guide wheel seat via a guide wheel spring to form an elastic guiding fit with the side edge of the photovoltaic panel. The lower power housing is connected to the coating machine body via a lifting spring to adapt to photovoltaic panels of different thicknesses.

[0012] In a preferred embodiment, the coating system includes an upper coating roll and a lower coating roll, which are rotatably mounted on both sides of the bottom of an aluminum frame via support bases. The coating substrate is wound between the upper coating roll and the lower coating roll to form a coating working surface, which is in contact with the surface of the photovoltaic panel.

[0013] In a preferred embodiment, the spraying system includes a solenoid valve, a quick-connect fitting, an adapter, and a nozzle. The inlet end of the solenoid valve is connected to the paint supply pipeline, and the outlet end is connected to the quick-connect fitting through the pipeline. The quick-connect fitting is connected to the nozzle through the adapter. The nozzle is positioned above the coating working surface, with the spray nozzle facing the coating working surface, and is used to spray paint onto the surface of the coating substrate.

[0014] In a preferred embodiment, a first transmission link is provided on one side of the robot. The first transmission link includes an upper drive wheel driven by an upper power motor. The upper drive wheel is sequentially connected to an auxiliary wheel via an upper transmission shaft, a first coupling, an intermediate wheel, and a lower rotating shaft. A second transmission link is provided on the other side of the robot. The second transmission link includes a lower drive wheel driven by a lower power motor. The lower drive wheel is sequentially connected to another auxiliary wheel via a lower rotating shaft, a coupling, an intermediate wheel, and an upper transmission shaft. The upper power motor and the lower power motor are electrically connected to the same control system and driven synchronously.

[0015] In a preferred embodiment, the floating pressure plate system includes a floating guide rod, a floating spring, and a pressure plate. The floating guide rod is fixed to an aluminum frame, and the pressure plate is slidably connected to the floating guide rod. The floating spring is sleeved on the outside of the floating guide rod, and its two ends abut against the aluminum frame and the pressure plate, respectively, to provide elastic preload to the pressure plate. The pressure plate is provided with a porous sponge, which abuts against the coating substrate. When there is unevenness on the surface of the photovoltaic panel, the pressure plate is displaced along the floating guide rod under the action of the floating spring, so that the coating system and the photovoltaic panel maintain adaptive contact.

[0016] In a preferred embodiment, a limiting plate is provided on the side end of the pressure plate. The limiting plate is used to limit the coating working surface. Limiting seats are respectively hinged to both ends of the limiting plate. The limiting seats are installed through limiting components, so that the limiting plate and the coating system can maintain adaptive cooperation.

[0017] In a preferred embodiment, the limiting component includes: a limiting guide rod, a limiting spring, and a limiting support seat. The limiting seat is slidably connected along the limiting guide rod, and the upper and lower ends of the limiting spring are fixedly connected to the limiting support seat and the limiting seat, respectively.

[0018] The beneficial effects of this invention are:

[0019] The present invention uses an upper power unit that abuts against the upper frame of the photovoltaic panel and a lower power unit that abuts against the lower frame of the photovoltaic panel. The upper and lower power units are arranged opposite each other to form a clamping structure for the photovoltaic panel, thereby driving the robot to walk along the length of the photovoltaic panel.

[0020] The present invention comprises a coating machine body including an aluminum frame, and a spraying system, a coating system and a floating pressure plate system installed on the aluminum frame. The spraying system is connected to the coating system, and the floating pressure plate system abuts against the coating system.

[0021] This invention uses a spraying system to supply superhydrophilic coating to a coating system, a coating system to contact and coat the surface of a photovoltaic panel, and a floating pressure plate system to adjust the contact state between the coating system and the photovoltaic panel during robot movement, so as to keep the coating process stable. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure and operation of the present invention;

[0024] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 3 This is an exploded view of the overall structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the coating machine body structure of the present invention;

[0027] Figure 5 For the present invention Figure 4 Front view of the coating machine body structure;

[0028] Figure 6 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A;

[0029] Figure 7 This is a schematic diagram of the upper power unit structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the lower power motor structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the electronic control part of the present invention;

[0032] Figure 10 This is a schematic diagram of the lower power unit structure of the present invention;

[0033] Figure 11 This is a schematic diagram of the upper power motor structure of the present invention.

[0034] In the diagram: 101. Upper power unit; 102. Coating body; 103. Lower power unit; 104. Photovoltaic panel; 201. Upper power cover; 202. Upper lifting lug; 203. Upper power system; 204. Worm gear assembly; 205. Spraying system; 206. Power shaft system; 207. Floating pressure plate system; 208. Lower power system; 209. Lower power cover; 210. Inspection door panel; 211. Sealing plate; 212. Lower... 213. Lifting lug; 214. Protective cover; 305. Coating system; 306. Rotary handle; 307. Worm gear; 308. Porous sponge; 309. Pressure plate; 300. Floating guide rod; 300. Floating spring; 301. Nozzle; 302. Aluminum frame; 313. Lower rotating shaft; 314. Intermediate wheel; 315. First coupling; 316. Upper drive shaft; 317. Adapter; 318. Quick connector; 319. Electric... 316. Solenoid valve; 317. Upper coating roll; 318. Support base; 319. Lower coating roll; 401. Cable tray; 402. Lower drive plate; 403. Guide wheel seat; 404. Guide wheel mounting block; 405. Lower power motor; 406. Aircraft connector; 407. Electrical control unit; 408. Sealing rubber gasket; 409. Lower power housing; 410. Lower reducer; 411. Guide wheel spring; 412. Guide wheel pin; 413. Lower guide wheel... 413. Wheel; 414. Lifting spring; 415. Lower drive wheel; 416. Second coupling; 501. Upper power housing; 502. Upper guide wheel; 503. Sensor; 504. Auxiliary wheel; 505. Upper drive wheel; 506. Upper drive plate; 507. Upper reducer; 508. Upper power motor; 601. Limiting plate; 602. Limiting seat; 603. Limiting guide rod; 604. Limiting spring; 605. Limiting fixing seat. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0036] refer to Figure 1 , Figures 1 to 11As shown, the spray coating type superhydrophilic coating robot includes an upper power unit 101, a coating body 102, and a lower power unit 103. The upper power unit 101 and the lower power unit 103 are arranged vertically opposite each other. The coating body 102 is connected between the upper power unit 101 and the lower power unit 103. The upper power unit 101 and the lower power unit 103 respectively abut against the upper and lower frames of the photovoltaic panel 104 to drive the robot to move along the length of the photovoltaic panel 104. The coating body 102 includes an aluminum frame 308, a spray system 205, a coating system 214, and a floating pressure plate system 207. The spraying system 205, coating system 214, and floating pressure plate system 207 are all installed on the aluminum frame 308. The spraying system 205 is connected to the coating system 214 and is used to supply superhydrophilic coating to the coating system 214. The coating system 214 is located at the bottom of the aluminum frame 308 and is used to contact the surface of the photovoltaic panel 104 for coating. The floating pressure plate system 207 is located on the side of the coating system 214 away from the photovoltaic panel 104 and abuts against the coating system 214. It is used to adjust the contact state between the coating system 214 and the photovoltaic panel 104 during the robot's movement.

[0037] It should be noted that, in use, the upper power unit 101 abuts against the upper frame of the photovoltaic panel 104, and the lower power unit 103 abuts against the lower frame of the photovoltaic panel 104. The upper power unit 101 and the lower power unit 103 are arranged opposite to each other to form a clamping structure for the photovoltaic panel 104, thereby driving the robot to walk along the length of the photovoltaic panel 104.

[0038] The coating machine body 102 includes an aluminum frame 308, and a spray system 205, a coating system 214 and a floating pressure plate system 207 installed on the aluminum frame 308. The spray system 205 is connected to the coating system 214, and the floating pressure plate system 207 abuts against the coating system 214.

[0039] It should be noted that the spraying system 205 is used to supply superhydrophilic coating to the coating system 214, the coating system 214 is used to contact the surface of the photovoltaic panel 104 and coat it, and the floating pressure plate system 207 is used to adjust the contact state between the coating system 214 and the photovoltaic panel 104 during the robot's movement to keep the coating process stable.

[0040] A rotating handle 301 and a worm gear 302 are mounted on an aluminum frame 308. The rotating handle 301 is connected to the worm end of the worm gear 302. The worm end of the worm gear 302 is connected to the coating system 214. An upper drive shaft 312 and a lower rotating shaft 309 are also mounted on the aluminum frame 308. The upper drive shaft 312 and the lower rotating shaft 309 are connected by an intermediate wheel 310 and a first coupling 311. The rotating handle 301 and the worm gear 302 belong to the worm gear assembly 204.

[0041] It should be noted that by rotating the rotary handle 301, the worm gear 302 is driven to rotate, thereby adjusting the position or tension of the coating system 214.

[0042] An upper drive shaft 312 and a lower rotating shaft 309 are rotatably mounted on the aluminum frame 308. The upper drive shaft 312 and the lower rotating shaft 309 are connected by an intermediate wheel 310 and a first coupling 311 to transmit power between the two sides of the robot.

[0043] The aluminum frame 308 is also equipped with a solenoid valve 315, a quick connector 314, an adapter 313 and a nozzle 307, and the components are connected in sequence to form a spray channel.

[0044] It should be noted that the upper coating roll 316 and the lower coating roll 318 are rotatably mounted on both sides of the bottom of the aluminum frame 308 via the support base 317 to support the coating substrate; the wire groove 319 is provided on the side of the aluminum frame 308 for laying power lines and control lines.

[0045] The upper power unit 101 includes an upper power housing 501, with an upper power cover 201 fixedly connected to the top of the upper power housing 501. An upper power motor 508 and an upper reducer 507 are installed inside the upper power housing 501. An upper lifting lug 202 is fixedly connected to the top of the upper power housing 501. The output end of the upper power motor 508 is connected to the input end of the upper reducer 507. The output end of the upper reducer 507 is connected to the upper drive wheel 505. The upper drive wheel 505 extends out of the bottom of the upper power housing 501 and abuts against the upper frame of the photovoltaic panel 104. An upper guide wheel 502 and an auxiliary wheel 504 are also installed on the upper power housing 501. The upper guide wheel 502 and the auxiliary wheel 504 roll with the side of the frame of the photovoltaic panel 104 for guidance.

[0046] It should be noted that the output shaft of the upper power motor 508 is connected to the input end of the upper reducer 507, and the output end of the upper reducer 507 is connected to the upper drive wheel 505. The upper drive wheel 505 extends out of the upper power housing 501 and abuts against the upper frame of the photovoltaic panel 104 to provide driving force for walking. The output shaft of the upper power motor 508 and the input end of the upper reducer 507 belong to the power shaft system 206.

[0047] An upper guide wheel 502 and an auxiliary wheel 504 are rotatably mounted on the lower part of the upper power housing 501. The upper guide wheel 502 and the auxiliary wheel 504 roll in cooperation with the side of the photovoltaic panel 104 frame to guide the robot's walking direction. The above-mentioned devices set in the upper power housing 501 all belong to the upper power system 203.

[0048] The upper drive plate 506 is located at the end of the upper power housing 501. A sensor 503 is installed on the upper drive plate 506 to detect the boundary position of the photovoltaic panel 104.

[0049] The lower power unit 103 includes a lower power housing 408, within which a lower power motor 404 and a lower reducer 409 are installed. A lower power cover 209 is fixedly connected to the bottom end of the lower power housing 408, and a lower lifting lug 212 is also fixedly connected to the bottom end of the lower power housing 408. A connector 405 is fixedly connected to the top end of the lower power housing 408. An electrical control unit 406 is installed inside the lower power housing 408. The output end of the lower power motor 404 is connected to the input end of the lower reducer 409. The output end of the lower reducer 409 is connected to the lower drive wheel 414 via a second coupling 415. The lower drive wheel 414 extends out of the upper part of the lower power housing 408 and abuts against the lower edge of the photovoltaic panel 104. A lower guide wheel 412 is mounted on the power housing 408 via a guide wheel seat 402. The lower guide wheel 412 is elastically connected to the guide wheel seat 402 via a guide wheel spring 410, which is used to form an elastic guiding fit with the side frame of the photovoltaic panel 104. The lower power housing 408 is connected to the coating machine body 102 via a lifting spring 413, which is used to adapt to photovoltaic panels 104 of different thicknesses. The output end of the lower power motor 404 and the input end of the lower reducer 409 belong to the lower power system 208. A maintenance door panel 210 is installed on the side of the lower power housing 408. The maintenance door panel 210 provides a sealing function for the lower power housing 408 through a sealing plate 211. A sealing rubber gasket 407 is provided between the sealing plate 211 and the maintenance door panel 210.

[0050] It should be noted that the lower power shield 209 and the upper power shield 201 constitute an integral protective shield 213.

[0051] The output shaft of the lower power motor 404 is connected to the input end of the lower reducer 409. The output end of the lower reducer 409 is connected to the lower drive wheel 414 via the second coupling 415. The lower drive wheel 414 extends out of the lower power housing 408 and abuts against the lower frame of the photovoltaic panel 104.

[0052] A guide wheel mounting block 403 is mounted on the lower power housing 408 via a guide wheel seat 402. The guide wheel mounting block 403 is hinged to the guide wheel seat 402 via a guide wheel pin 411. A guide wheel spring 410 is sleeved on the outside of the guide wheel pin 411 and abuts against the guide wheel seat 402 and the guide wheel mounting block 403.

[0053] The lower guide wheel 412 is rotatably mounted on the guide wheel mounting block 403 and forms an elastic guiding fit with the side of the lower frame of the photovoltaic panel 104.

[0054] The lower power housing 408 is connected to the aluminum frame 308 via a lifting spring 413, which is used to adjust the clamping distance between the upper and lower power units to accommodate photovoltaic panels 104 of different thicknesses.

[0055] The coating system 214 includes an upper coating roll 316 and a lower coating roll 318. The upper coating roll 316 and the lower coating roll 318 are rotatably mounted on both sides of the bottom of the aluminum frame 308 via support bases 317. The coating substrate is wrapped between the upper coating roll 316 and the lower coating roll 318 to form a coating working surface. The coating working surface is in contact with the surface of the photovoltaic panel 104.

[0056] The upper coating roll 316 and the lower coating roll 318 are rotatably mounted on the left and right sides of the bottom of the aluminum frame 308 via the support base 317, and the coating substrate forms a suspended coating working surface between the upper coating roll 316 and the lower coating roll 318.

[0057] It should be noted that the coating working surface is set facing the surface of the photovoltaic panel 104 and is in contact with the surface of the photovoltaic panel 104. During the robot's movement, the coating is evenly applied to the surface of the photovoltaic panel 104.

[0058] It should be noted that the floating pressure plate system 207 is distributed along the width direction of the coating substrate and abuts against the upper surface of the coating substrate, so that the coating substrate and the photovoltaic panel 104 form a surface contact.

[0059] The spraying system 205 includes a solenoid valve 315, a quick-connect connector 314, an adapter 313, and a nozzle 307. The inlet end of the solenoid valve 315 is connected to the paint supply pipeline, and the outlet end is connected to the quick-connect connector 314 through the pipeline. The quick-connect connector 314 is connected to the nozzle 307 through the adapter 313. The nozzle 307 is positioned above the coating working surface, with the spray nozzle facing the coating working surface, and is used to spray paint onto the surface of the coating substrate.

[0060] The inlet of the solenoid valve 315 is connected to the external paint supply pipeline, and the outlet is connected to multiple quick-connect connectors 314 through the pipeline. Each quick-connect connector 314 is connected to the corresponding nozzle 307 through the adapter 313.

[0061] It should be noted that multiple nozzles 307 are arranged above the coating working surface along the width direction of the coating substrate, and the nozzles face the surface of the coating substrate.

[0062] During operation, the coating is controlled by the solenoid valve 315 and then sequentially delivered to the nozzle 307 through the quick connector 314 and the adapter 313. The nozzle 307 then sprays the coating onto the surface of the substrate, so that the substrate is evenly wetted.

[0063] The robot has a first transmission link on one side, which includes an upper drive wheel 505 driven by an upper power motor 508. The upper drive wheel 505 is connected to an auxiliary wheel 504 via an upper drive shaft 312, a first coupling 311, an intermediate wheel 310, and a lower rotating shaft 309. The robot has a second transmission link on the other side, which includes a lower drive wheel 414 driven by a lower power motor 404. The lower drive wheel 414 is connected to another auxiliary wheel 504 via a lower rotating shaft 309, a second coupling 415, an intermediate wheel 310, and an upper drive shaft 312. The upper power motor 508 and the lower power motor 404 are electrically connected to the same control system and driven synchronously.

[0064] One side is driven by the upper drive motor 508 to rotate the upper drive wheel 505. The power of the upper drive wheel 505 is transmitted through the upper transmission shaft 312, the first coupling 311, the intermediate wheel 310 and the lower rotating shaft 309.

[0065] On the other side, the lower drive wheel 414 is driven to rotate by the lower power motor 404. The power of the lower drive wheel 414 is transmitted through the lower rotating shaft 309, the second coupling 415, the intermediate wheel 310 and the upper transmission shaft 312.

[0066] It should be noted that the upper power motor 508 and the lower power motor 404 are connected to the same control system and operate synchronously, so that the upper drive wheel 505 and the lower drive wheel 414 rotate synchronously, thereby driving the robot to walk stably along the photovoltaic panel 104.

[0067] Sensors 503 are installed on both the upper drive plate 506 and the lower drive plate 401 in the robot's walking direction to detect the boundary of the photovoltaic panel 104 and control the robot to stop.

[0068] The floating pressure plate system 207 includes a floating guide rod 305, a floating spring 306, and a pressure plate 304. The floating guide rod 305 is fixed to the aluminum frame 308, and the pressure plate 304 is slidably connected to the floating guide rod 305. The floating spring 306 is sleeved on the outside of the floating guide rod 305, and its two ends abut against the aluminum frame 308 and the pressure plate 304 respectively, for providing elastic pre-tightening force to the pressure plate 304. A porous sponge 303 is provided on the pressure plate 304, and the porous sponge 303 abuts against the coating substrate. When there is unevenness on the surface of the photovoltaic panel 104, the pressure plate 304 is displaced along the floating guide rod 305 under the action of the floating spring 306, so that the coating system 214 and the photovoltaic panel 104 maintain adaptive contact.

[0069] The floating pressure plate system 207 includes multiple floating pressure plate units arranged along the width direction of the coating substrate. Each floating pressure plate unit includes a floating guide rod 305, a floating spring 306, a pressure plate 304, and a porous sponge 303.

[0070] The upper end of the floating guide rod 305 is fixed to the aluminum frame 308, and the lower end passes through the pressure plate 304. The pressure plate 304 and the floating guide rod 305 are in sliding fit. The floating spring 306 is sleeved on the outside of the floating guide rod 305, and its two ends abut against the aluminum frame 308 and the pressure plate 304 respectively.

[0071] The lower surface of the pressure plate 304 is provided with a porous sponge 303, which abuts against the upper surface of the coating substrate.

[0072] It should be noted that during the robot's movement, when there is a change in the height of the photovoltaic panel 104, the pressure plate 304 at the corresponding position is displaced along the floating guide rod 305, and the floating spring 306 is compressed or stretched, thereby changing the pressing force of the pressure plate 304 on the coating substrate and adjusting the contact state between the coating substrate and the surface of the photovoltaic panel 104.

[0073] It should be noted that, through the above structure, when there are local unevenness on the surface of the photovoltaic panel 104, each floating pressure plate unit can generate corresponding displacement, so that the coating substrate is kept in contact with the surface of the photovoltaic panel 104 in different areas, thereby making the coating of the coating material on the surface of the photovoltaic panel 104 more uniform.

[0074] The pressure plate 304 is provided with a limiting plate 601 on its side. The limiting plate 601 is used to limit the coating working surface. The two ends of the limiting plate 601 are respectively hinged to limiting seats 602. The limiting seats 602 are installed through limiting components, so that the limiting plate 601 and the coating system 214 can maintain adaptive cooperation.

[0075] It should be noted that in existing photovoltaic power plants, the photovoltaic panels 104 are separated from each other by frames. When the coating robot moves from one photovoltaic panel 104 to another, it needs to pass through the frame between the two panels. This causes the coating robot's coating to come into contact with the frame. The coating robot's coating and the photovoltaic panel 104 have surface contact. When the coating just makes contact with the frame, the end of the coating conveyor is still in contact with the photovoltaic panel 104. There is a height difference between the frame and the surface of the photovoltaic panel 104 that needs to be coated. Therefore, a corner is formed at the connection point between the frame and the photovoltaic panel 104. During the coating process, the coating material is in surface contact with the surface of the photovoltaic panel 104. Furthermore, when the coating surface contacts the edge of the frame, the end of the coating material still contacts the surface of the photovoltaic panel 104, thus forming a triangular area. The area corresponding to this triangular area is the part of the photovoltaic panel 104 surface that cannot be coated. This means that the coating fails to cover the photovoltaic panel 104 surface area at the corner of the frame. Since this is the area on the photovoltaic panel 104 surface that is most prone to dust accumulation, and dust tends to accumulate most severely at the edges and corners of the frame due to static electricity and airflow vortex effects, if this area is missed, the self-cleaning effect of the photovoltaic panel 104 will be greatly reduced.

[0076] As the robot moves along the photovoltaic panel 104, the limiting plate 601 holds the coating material at a low position. When the robot passes through the frame, the coating system 214 releases more coating material. The porous sponge 303 passes through the frame first. At this time, the limiting plate 601 contacts the side wall of the frame. The coating material between the limiting plate 601 and the porous sponge 303 wraps around the frame. The robot moves back and forth, coating the photovoltaic panel 104 at the edge of the frame. The coating material forms a slope between the photovoltaic panel 104 and the frame to prevent dust from forming in the dead corner between the photovoltaic panel 104 and the frame. The coating system 214 begins to shrink the coating material, and the coating material moves upward with the limiting plate 601. Then the limiting plate 601 slides past the frame, and the coating system 214 releases the coating material again. The limiting plate 601 cleans the dead corner on the other side of the frame and the photovoltaic panel 104.

[0077] The limiting assembly includes: a limiting guide rod 603, a limiting spring 604, and a limiting fixing seat 605. The limiting seat 602 is slidably connected along the limiting guide rod 603. The upper and lower ends of the limiting spring 604 are fixedly connected to the limiting fixing seat 605 and the limiting seat 602, respectively. When the coating material moves upward with the limiting plate 601, the limiting plate 601 slides along the limiting guide rod 603 with the limiting seat 602. At the same time, the limiting seat 602 compresses the limiting spring 604. The limiting fixing seat 605 is mounted on the robot. When the coating material moves along the frame with the limiting plate 601, the limiting plate 601 rotates first when sliding along the frame, and then slides across the frame through the coating material.

[0078] Working principle of the invention:

[0079] At the start of the operation, the robot is placed at the beginning of the photovoltaic panel. The upper and lower power units move inwards under the drive of their motors until the internal drive wheels firmly press against the upper and lower edges of the photovoltaic panel, forming a clamping state. Subsequently, the control system activates, and the motors in the upper and lower power units rotate synchronously. The drive wheels, relying on friction with the edge surface, propel the entire robot forward along the length of the photovoltaic panel. During movement, if the robot tilts, the guide wheels mounted on the side will roll against the side of the photovoltaic panel edge, generating a counterforce to correct the robot's angle of travel. Simultaneously, if encountering photovoltaic panel edges of varying thicknesses, the lifting spring connecting the lower power unit and the coated body will compress or stretch, causing the lower power unit to float up and down relative to the body, thus maintaining continuous stability in the clamping state.

[0080] When the robot moves into the work area, the coating process begins. An external paint pump delivers liquid paint through pipes to the robot's interior. The control system signals to open a solenoid valve, allowing the paint to flow through a quick-connect fitting into the nozzle. The nozzle sprays the paint onto the substrate surface below, where it quickly spreads and wets the substrate. Simultaneously, the robot continues moving forward. Supported by the upper and lower coating rolls, the paint-wetted substrate forms a forward-convex arc-shaped contact surface. As the robot moves, this paint-soaked substrate contact surface undergoes relative rolling friction with the stationary photovoltaic glass surface, transferring the paint from the substrate surface to the photovoltaic glass.

[0081] During the coating transfer process, the floating flattening mechanism located on the back of the coating substrate begins to operate. A floating guide rod passes through the machine casing, one end connected to a pressure plate covered with a porous sponge, and the other end fitted with a floating spring. When the coating substrate contacts the photovoltaic panel surface, the floating spring is pre-compressed, generating thrust to push the pressure plate and porous sponge forward, pressing firmly against the coating substrate. If the photovoltaic panel surface is uneven, causing increased local resistance, the floating guide rod will slide backward within the guide hole, compressing the floating spring; if the surface is concave, the floating spring releases its elasticity, pushing the floating guide rod forward. Throughout this process, the porous sponge remains firmly attached to the back of the coating substrate, following the microscopic contours of the photovoltaic panel surface with reciprocating elastic displacement, forcing the coating substrate to conform to the panel surface in real time.

[0082] When the robot moves to the junction of the frames between two photovoltaic panels or to the edge of the panels, the limiting plate installed at the coating front end first contacts the vertical sidewall of the frame. The limiting plate blocks the direct path of the coating substrate, forcing the flexible substrate to bend and deform along the guide surface of the limiting plate under the thrust of movement. The deformed substrate wraps around the edges of the frame and extends deep into the angle between the frame and the panel. As the robot continues its minute movements or reciprocating motion, the coating-soaked substrate slides within the angled area, filling the dead zone with coating. After completing this segment of the journey, the solenoid valve closes, stopping the feeding, and the robot continues to the next work point or endpoint, completing a full work cycle.

[0083] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A spray-coating type superhydrophilic coating robot, characterized in that, The system includes an upper power unit (101), a coating body (102), and a lower power unit (103). The upper power unit (101) and the lower power unit (103) are arranged vertically opposite each other. The coating body (102) is connected between the upper power unit (101) and the lower power unit (103). The upper power unit (101) and the lower power unit (103) respectively abut against the upper and lower frames of the photovoltaic panel (104) to drive the robot to walk along the length of the photovoltaic panel (104). The coating machine (102) includes an aluminum frame (308), a spray system (205), a coating system (214), and a floating pressure plate system (207). The spray system (205), the coating system (214), and the floating pressure plate system (207) are all installed on the aluminum frame (308). The spray system (205) is connected to the coating system (214) and is used to supply superhydrophilic coating to the coating system (214). The coating system (214) is located at the bottom of the aluminum frame (308) and is used to contact the surface of the photovoltaic panel (104) and perform coating. The floating pressure plate system (207) is located on the side of the coating system (214) away from the photovoltaic panel (104) and abuts against the coating system (214), and is used to adjust the contact state between the coating system (214) and the photovoltaic panel (104) during the robot's movement.

2. The spray coating type superhydrophilic coating robot according to claim 1, characterized in that, A rotating handle (301) and a worm gear (302) are mounted on the aluminum frame (308). The rotating handle (301) is connected to the worm end of the worm gear (302). The worm end of the worm gear (302) is connected to the coating system (214). An upper drive shaft (312) and a lower rotating shaft (309) are also mounted on the aluminum frame (308). The upper drive shaft (312) and the lower rotating shaft (309) are connected by an intermediate wheel (310) and a first coupling (311).

3. The spray coating type superhydrophilic coating robot according to claim 1, characterized in that, The upper power unit (101) includes an upper power housing (501), in which an upper power motor (508) and an upper reducer (507) are installed. The output end of the upper power motor (508) is connected to the input end of the upper reducer (507), and the output end of the upper reducer (507) is connected to the upper drive wheel (505). The upper drive wheel (505) extends out of the bottom of the upper power housing (501) and abuts against the upper frame of the photovoltaic panel (104). An upper guide wheel (502) and an auxiliary wheel (504) are also installed on the upper power housing (501). The upper guide wheel (502) and the auxiliary wheel (504) roll with the side of the frame of the photovoltaic panel (104) for guidance.

4. The spray coating type superhydrophilic coating robot according to claim 1, characterized in that, The lower power unit (103) includes a lower power housing (408), in which a lower power motor (404) and a lower reducer (409) are installed. The output end of the lower power motor (404) is connected to the input end of the lower reducer (409). The output end of the lower reducer (409) is connected to the lower drive wheel (414) via a second coupling (415). The lower drive wheel (414) extends out of the upper part of the lower power housing (408) and... The lower power housing (408) abuts against the lower frame of the photovoltaic panel (104). A lower guide wheel (412) is installed on the lower power housing (408) through a guide wheel seat (402). The lower guide wheel (412) is elastically connected to the guide wheel seat (402) through a guide wheel spring (410) to form an elastic guiding fit with the side frame of the photovoltaic panel (104). The lower power housing (408) is connected to the coating machine body (102) through a lifting spring (413) to adapt to photovoltaic panels (104) of different thicknesses.

5. The spray coating type superhydrophilic coating robot according to claim 1, characterized in that, The coating system (214) includes an upper coating roll (316) and a lower coating roll (318). The upper coating roll (316) and the lower coating roll (318) are rotatably mounted on both sides of the bottom of the aluminum frame (308) via support bases (317). The coating substrate is wound between the upper coating roll (316) and the lower coating roll (318) to form a coating working surface. The coating working surface is in contact with the surface of the photovoltaic panel (104).

6. The spray coating type superhydrophilic coating robot according to claim 5, characterized in that, The spraying system (205) includes a solenoid valve (315), a quick connector (314), an adapter (313), and a nozzle (307). The inlet end of the solenoid valve (315) is connected to the paint supply pipeline, and the outlet end is connected to the quick connector (314) through the pipeline. The quick connector (314) is connected to the nozzle (307) through the adapter (313). The nozzle (307) is located above the coating working surface, with the spray nozzle facing the coating working surface, and is used to spray paint onto the surface of the coating substrate.

7. The spray coating type superhydrophilic coating robot according to claim 6, characterized in that, The robot has a first transmission link on one side, which includes an upper drive wheel (505) driven by an upper power motor (508). The upper drive wheel (505) is connected to an auxiliary wheel (504) in sequence through an upper drive shaft (312), a first coupling (311), an intermediate wheel (310), and a lower rotating shaft (309). The robot has a second transmission link on the other side, which includes a lower drive wheel (414) driven by a lower power motor (404). The lower drive wheel (414) is connected to another auxiliary wheel (504) in sequence through a lower rotating shaft (309), a second coupling (415), an intermediate wheel (310), and an upper drive shaft (312). The upper power motor (508) and the lower power motor (404) are electrically connected to the same control system and driven synchronously.

8. The spray coating type superhydrophilic coating robot according to claim 5, characterized in that, The floating pressure plate system (207) includes a floating guide rod (305), a floating spring (306), and a pressure plate (304). The floating guide rod (305) is fixed on the aluminum frame (308). The pressure plate (304) is slidably connected to the floating guide rod (305). The floating spring (306) is sleeved on the outside of the floating guide rod (305) and its two ends abut against the aluminum frame (308) and the pressure plate (304) respectively, for providing elastic pre-tightening force to the pressure plate (304). The pressure plate (304) is provided with a porous sponge (303), which abuts against the coating substrate. When there is unevenness on the surface of the photovoltaic panel (104), the pressure plate (304) is displaced along the floating guide rod (305) under the action of the floating spring (306), so that the coating system (214) and the photovoltaic panel (104) maintain adaptive contact.

9. The spray coating type superhydrophilic coating robot according to claim 8, characterized in that, The pressure plate (304) is provided with a limiting plate (601) on its side. The limiting plate (601) is used to limit the coating working surface. The two ends of the limiting plate (601) are respectively hinged to limiting seats (602). The limiting seats (602) are installed through limiting components so that the limiting plate (601) and the coating system (214) can maintain adaptive cooperation.

10. The spray coating type superhydrophilic coating robot according to claim 9, characterized in that, The limiting component includes: a limiting guide rod (603), a limiting spring (604), and a limiting fixing seat (605). The limiting seat (602) is slidably connected along the limiting guide rod (603), and the upper and lower ends of the limiting spring (604) are fixedly connected to the limiting fixing seat (605) and the limiting seat (602), respectively.

Images