Hanging rail type photovoltaic module spraying and coating device
By designing a spray coating device for hanging rail photovoltaic modules, the problems of low construction efficiency and poor uniformity of photovoltaic module anti-reflection film repair in the existing technology are solved, and efficient and uniform coating effect is achieved, and the power generation efficiency of photovoltaic modules is extended.
Patent Information
- Application Number
- CN202421135589.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The construction efficiency of the anti-reflection film repair process of existing photovoltaic modules is low and has poor uniformity, and it is impossible to accurately regulate the spray uniformity and film thickness, resulting in a decrease in the power generation of photovoltaic modules.
A rail-mounted photovoltaic module spray coating device is designed, including a control mechanism, a walking mechanism, a crawling mechanism, a spraying mechanism, a suspension mechanism and a main frame. Through the cooperation of the crawling mechanism and a spraying mechanism, efficient coating of the surface of the photovoltaic module is achieved.
This device can perform in-situ spraying without affecting the power generation of photovoltaic modules, improves the efficiency of the photovoltaic module coating process, ensures the uniformity of the coating and the control of the film layer thickness, and extends the impermeability effect of the photovoltaic glass surface.
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Figure CN222625022U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of robot coating, and in particular relates to a rail-mounted photovoltaic component spray coating device. Background Art
[0002] The packaging structure of a typical commercial solar cell module is composed of photovoltaic glass, film, battery cells, backplane and other parts. Due to the interface between the photovoltaic packaging glass and the air, about 4% of the sunlight will be reflected. This part of the reflected sunlight cannot participate in the photoelectric conversion process, resulting in a certain amount of light loss.
[0003] However, before the invention of effective anti-reflective coatings for photovoltaic glass, the cover glass in photovoltaic modules was assembled in an uncoated form. According to statistics, the global installed capacity of uncoated modules exceeded 300GW between 2008 and 2017. If the scope is narrowed to China, there are more than 100GW of uncoated modules, which results in about 6-9GW of electricity not being effectively utilized. Anti-reflective film uses the principle of interference and destructiveness of light to achieve the purpose of anti-reflection, which can effectively suppress the light reflection loss caused by the refractive index difference at the interface. The light transmittance of non-coated glass in the 380-1100nm band is only within 91.5%, while the light transmittance of coated glass can reach more than 94%, which increases the light transmittance by more than 2%. Therefore, after 2016, the factory coating of photovoltaic glass has been gradually promoted, and it has now become the standard configuration of photovoltaic modules. However, after long-term outdoor use of solar power stations, the anti-reflection and anti-reflection film on the surface of the photovoltaic glass will be damaged due to dust obstruction, wind and sand blowing, acid rain erosion and other effects, and phenomena such as scratches, falling off, internal structure corrosion and collapse will occur, thereby losing its anti-reflection effect. These problems also cause a decrease in the power generation of photovoltaic modules.
[0004] At present, the anti-reflection film on the surface of photovoltaic modules can be repaired by post-coating to improve the solar transmittance of the modules. However, as an optical film, the film layer of the anti-reflection film must be controlled between 100-200nm to achieve the best anti-reflection performance. At present, the repair of the anti-reflection film of photovoltaic modules is mostly carried out manually and semi-automatically, with low construction efficiency and poor uniformity. The existing patents related to coating robots have the disadvantages of being unable to accurately control the uniformity of spraying and the thickness of the film layer, which restricts the development of the repair process of the anti-reflection film of photovoltaic modules. Utility Model Content
[0005] The utility model aims to overcome the deficiencies in the prior art and to provide a rail-mounted photovoltaic module spray coating device and a coating method.
[0006] The rail-mounted photovoltaic module spray coating device comprises: a control mechanism, a walking mechanism, a crawling mechanism, a spraying mechanism, a hanging mechanism and a main frame; the control mechanism is used to control the walking mechanism, the crawling mechanism and the spraying mechanism; the crawling mechanism is mounted on the main frame, and the spraying mechanism is optionally installed at the bottom of the crawling mechanism;
[0007] The walking mechanism is symmetrically arranged at both ends of the main frame; the walking mechanism includes walking wheels and limiting wheels, the limiting wheels of the walking mechanisms on both sides roll on the outer sides of the upper and lower frames of the photovoltaic module respectively, and the walking wheels roll on the frame of the photovoltaic module;
[0008] The hanging mechanism is arranged at one end of the main frame, and comprises a coating tube hanging rod, and the coating tube hanging rod extends above the main frame;
[0009] The crawling mechanism includes a driving roller and a support plate. The support plate is fixed on one side of the crawling mechanism. The motor of the driving roller is fixedly connected to a spring module. The side of the spring module away from the main frame is connected to the support plate through a compression spring stud. The driving roller rolls on the wall surface of one side of the main frame, and the crawling mechanism is provided with a smooth idler wheel corresponding to the driving roller on the other side of the main frame.
[0010] Preferably, the main frame includes vertical profiles and transverse profiles. The top of the vertical profile is fixed at both ends of the transverse profile. Photoelectric baffles are provided on the sides of the transverse profile for detecting the position of the crawling mechanism. A busbar rail is provided along the entire length of the lower surface of the transverse profile. The busbar rail is spliced in sections through connectors. A collector is slidably provided on the busbar rail for powering the device.
[0011] Preferably, the walking mechanism includes a walking mechanism base plate, and walking wheels are provided at both ends of the walking mechanism base plate facing the photovoltaic component, and one of the walking wheels is connected to a walking motor; angle brackets are respectively fixed to the lower part of the two ends of the walking mechanism base plate, and a walking roller lower plate is fixed to the side of the corner bracket away from the photovoltaic component, the wheel axle of the limiting wheel is rotatably connected to the walking roller lower plate, and the limiting wheel extends from the gap at the bottom of the angle bracket to the frame of the photovoltaic component; the angle bracket and the walking roller lower plate are fixedly connected by bolts with compression springs.
[0012] Preferably, the crawling mechanism includes an outer frame of the crawling mechanism and a motor wheel support, a support plate is fixed on one side of the outer frame of the crawling mechanism, a driving roller is arranged on a horizontal plane below the motor wheel support, the driving roller is connected to a motor, and spring modules are fixed below both ends of the motor wheel support by nuts with compression springs, two spring modules are respectively arranged on both sides of the driving roller, the spring module is fixed to the motor housing, a stud with compression spring is provided between the spring module and the support plate, and the spring module and the driving roller move horizontally when the stud with compression spring rotates; smooth idler wheels are provided on the horizontal plane and the vertical plane below the top of the outer frame of the crawling mechanism, the bottom of the smooth idler wheel on the vertical plane is supported on the main frame, and the smooth idler wheel on the horizontal plane and the driving roller roll on the surfaces on both sides of the main frame respectively.
[0013] Preferably, a spray module connecting plate is fixed at the bottom of the outer frame of the crawling mechanism, and the spray mechanism includes a profile frame. Several nozzles are provided along the length direction of the side edge of the profile frame through a nozzle fixing plate, and protruding columns are vertically provided at both ends of the profile frame. The two protruding columns are respectively fixed to the two ends of the spray module connecting plate.
[0014] Preferably, the hanging mechanism is fixed to one end of the main frame through a hanging rod support seat, the top of the hanging rod support seat is rotatably sleeved with a hanging rod support base, the side of the hanging rod support base is fixed with a hanging rod fixing seat, one end of the coating tube hanging rod is fixed in the hanging rod fixing seat, and the other end extends to the top of the main frame, which is used for supporting and suspending the coating liquid pipeline, air pipe and circuit.
[0015] The beneficial effects of the utility model are:
[0016] 1) The utility model can perform in-situ spraying without affecting the power generation of photovoltaic modules. The crawling mechanism crawls along the main frame through the cooperation of the smooth idler wheel and the driving roller to realize the movement of the spraying mechanism, and a plurality of nozzles are arranged along the length direction of the spraying mechanism through the nozzle fixing plate, which is suitable for in-situ large-area coating, and the spraying area is large, which greatly improves the efficiency of the photovoltaic module coating process.
[0017] 2) The utility model has a support plate fixed on one side of the crawling mechanism, and the motor of the driving roller is fixedly connected to a spring module, and the side of the spring module away from the main frame is connected to the support plate through a compression spring stud; by adjusting the expansion and contraction amount of the compression spring stud, the tightness between the driving roller and the smooth idler wheel on the horizontal plane and the main frame is adjusted to ensure the smooth operation of the crawling mechanism.
[0018] 3) The utility model utilizes a splicable modular track, which is not limited by the size of the photovoltaic module, and the travel direction of the spraying mechanism is orthogonal to the travel direction of the walking mechanism, ensuring that the entire surface of the photovoltaic module can be sprayed without dead corners and good adaptability.
[0019] 4) The utility model is suitable for spraying of photovoltaic module coating. Compared with smearing and other methods, it is beneficial to save the use of coating liquid, and the film-forming effect can be controlled and the film-forming quality can be improved by adjusting parameters such as nozzle height, angle, pressure, duty cycle, liquefied particle size, etc. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 Installation effect diagram of spray coating device for rail-mounted photovoltaic modules;
[0021] Figure 2 This is a schematic diagram of the main frame structure;
[0022] Figure 3 Exploded diagram of the main frame;
[0023] Figure 4 It is a schematic diagram of the walking mechanism structure;
[0024] Figure 5 It is a schematic diagram of the crawling mechanism structure;
[0025] Figure 6 It is a schematic diagram of the spraying mechanism structure;
[0026] Figure 7 This is the exploded view of the spraying mechanism;
[0027] Figure 8 It is a schematic diagram of the suspension mechanism structure;
[0028] Fig. 9 This is an exploded view of the suspension mechanism;
[0029] Fig.10 This is a picture of the rail-mounted photovoltaic module spray coating device working on the photovoltaic module.
[0030] Explanation of the accompanying drawings: walking mechanism 1, crawling mechanism 2, spraying mechanism 3, hanging mechanism 4, main frame 5, walking mechanism base plate 1-3, walking motor 1-11, limiting wheel 1-13, angle bracket 1-14, walking roller lower plate 1-15, crawling mechanism outer frame 2-1, spraying module connecting plate 2-3, spring module 2-4, driving roller 2-6, motor wheel support 2-7, smooth idler wheel 2-8, crawling motor 2-17, support plate 2-18, profile frame 3-1, nozzle fixing plate 3-2, nozzle 3-9, coating tube hanging rod 4-1, hanging rod support seat 4-2, hanging rod support base 4-3, hanging rod fixing seat 4-4, vertical profile 5-1, horizontal profile 5-2, base profile 5-3, photoelectric baffle 5-4, busbar guide rail 5-5, connector 5-6, collector line 5-9. DETAILED DESCRIPTION
[0031] The utility model is further described below in conjunction with the embodiments. The description of the following embodiments is only used to help understand the utility model. It should be pointed out that for ordinary people in this technical field, the utility model can also be modified in some ways without departing from the principle of the utility model, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
[0032] Embodiment 1
[0033] As an example, Figures 1 to 4 As shown, this rail-mounted photovoltaic module spray coating device includes: a control mechanism, a walking mechanism 1, a crawling mechanism 2, a spraying mechanism 3, a hanging mechanism 4 and a main frame 5; the control mechanism is used to control the walking mechanism 1, the crawling mechanism 2 and the spraying mechanism 3; the main frame 5 is arranged along the upper and lower directions of the photovoltaic module.
[0034] The walking mechanism 1 is symmetrically arranged at both ends of the main frame 5; the walking mechanism 1 includes walking wheels and limiting wheels 1-13, and the limiting wheels 1-13 of the walking mechanism 1 on both sides roll on the outer sides of the upper and lower frames of the photovoltaic module respectively, and the walking wheels roll on the frame of the photovoltaic module to prevent the walking mechanism 1 from detaching.
[0035] Specifically, Figure 4 and Figure 5 As shown, the walking mechanism 1 includes a walking mechanism base plate 1-3, and walking wheels are provided at both ends of the walking mechanism base plate 1-3 facing the photovoltaic module, and one of the walking wheels is connected to a walking motor 1-11; angle brackets 1-14 are fixed to the lower parts of the two ends of the walking mechanism base plate 1-3, and a walking roller lower plate 1-15 is fixed to the side of the angle bracket 1-14 away from the photovoltaic module, and the wheel axle of the limiting wheel 1-13 is rotatably connected to the walking roller lower plate 1-15, and the limiting wheel 1-13 extends a certain distance from the gap at the bottom of the angle bracket 1-14 to the frame of the photovoltaic module; the angle bracket 1-14 and the walking roller lower plate 1-15 are fixedly connected by bolts with compression springs, and the tightness between each limiting wheel 1-13 and the main frame 5 is fine-tuned in the form of bolts-compression springs, which can improve the obstacle crossing ability of the coating device and prevent jamming caused by unevenness between photovoltaic modules.
[0036] The crawling mechanism 2 is mounted on the main frame 5 and moves along the length direction of the main frame 5; the crawling mechanism 2 includes a driving roller 2-6 and a support plate 2-18, the support plate 2-18 is fixed to one side of the crawling mechanism 2, and the crawling mechanism 2 is provided with spring modules 2-4 on both sides of the driving roller 2-6; the driving roller 2-6 rolls on the side wall of the main frame 5, and the lower surface of the top of the crawling mechanism 2 is slidably supported on the main frame 5 through a smooth idler wheel 2-8.
[0037] The spraying mechanism 3 is optionally installed at the bottom of the crawling mechanism 2. The spraying mechanism 3 is a detachable structure, and different functional modules such as a coating mechanism or a cleaning mechanism can be replaced without changing the main frame 5 to achieve different functions.
[0038] Embodiment 2
[0039] As another embodiment, this embodiment 2 proposes, on the basis of the embodiment 1, a more specific crawling mechanism 2 of the rail-mounted photovoltaic module spray coating device.
[0040] Specifically, Figure 5As shown, the crawling mechanism 2 includes a crawling mechanism outer frame 2-1 and a motor wheel support 2-7, a support plate 2-18 is fixed on one side of the crawling mechanism outer frame 2-1, a driving roller 2-6 is arranged on a horizontal plane below the motor wheel support 2-7, the driving roller 2-6 is connected to a crawling motor 2-17, and the entire crawling mechanism 2 moves on the working surface through the driving roller 2-6, and a spring module 2-4 is fixed below both ends of the motor wheel support 2-7 through nuts with compression springs, and two spring modules 2-4 are respectively arranged on both sides of the driving roller 2-6, and holes are arranged on the top of the two spring modules 2-4 to be connected to the holes on both sides of the motor wheel support 2-7, and nuts are arranged at both ends of the studs for fixing. A stud is arranged on the side of the spring module 2-4 away from the main frame 5, and the end of the stud is against the support plate 2-18, and a compression spring is arranged on the stud, and the position of the spring module 2-4 is fine-tuned by the tightening amount of the nut on the stud.
[0041] The lower surface of the top of the outer frame 2-1 of the crawling mechanism is provided with smooth idler wheels 2-8 on the horizontal and vertical surfaces. The bottom of the smooth idler wheel 2-8 on the vertical surface is supported on the main frame 5, and the smooth idler wheel 2-8 on the horizontal surface and the driving roller 2-6 are respectively clamped on the surfaces on both sides of the main frame 5. When the driving roller 2-6 rolls, the smooth idler wheels 2-8 on the horizontal and vertical surfaces are equivalent to driven wheels, which can ensure that there is no sliding friction between the crawling mechanism 2 and the main frame 5. The cooperation of the smooth idler wheel 2-8 on the horizontal surface and the driving roller 2-6 ensures that the crawling mechanism 2 will not derail from the main frame 5.
[0042] The bottoms of the two spring modules 2-4 are fixedly connected to the crawling motor 2-17, and the output end of the crawling motor 2-17 is connected to the driving roller 2-6, which supports the driving roller 2-6 and moves synchronously with it. Therefore, when the tightening amount of the nut on the stud changes, the driving roller 2-6 also changes with the position of the spring module 2-4. It is convenient for the installation of the crawling mechanism 2 and for dealing with the occurrence of slight bending of the main frame 5, ensuring that the crawling mechanism 2 crawls along the main frame 5 smoothly and improving the spraying accuracy.
[0043] It should be noted that the parts in this embodiment that are the same or similar to those in the first embodiment can be referenced to each other and will not be described in detail in this application.
[0044] Embodiment 3
[0045] As another embodiment, the third embodiment is proposed on the basis of the first and second embodiments, a suspension mechanism 4 is provided at one end of the main frame 5, such as Figure 8 and Fig. 9 shown.
[0046] like Figure 2 and Figure 3As shown, the main frame 5 includes a vertical profile 5-1 and a transverse profile 5-2. The top of the vertical profile 5-1 is fixed at both ends of the transverse profile 5-2. A photoelectric baffle 5-4 is provided on the side of the transverse profile 5-2 for detecting the position of the crawling mechanism 2. A busbar rail 5-5 is provided along the lower surface of the transverse profile 5-2. The busbar rail 5-5 is segmented and spliced by a connector 5-6. A collector 5-9 is slidably provided on the busbar rail 5-5 for powering the device. The busbar rail 5-5 is fixed to the transverse profile 5-2 by bolt connection. The collector 5-9 slides into the right boundary of the busbar and is connected to the busbar by rollers. It plays the role of gathering the power harness together and is the main power source of the entire mechanism. The photoelectric baffle 5-4 is fixed to the side of the transverse profile 5-2 by bolt connection to detect whether the crawling mechanism 2 has moved into place. The profiles are all made of aluminum alloy, which is lighter than steel, making the coating device lighter. The profiles are connected by angle brackets and profile reinforcements for easy use by staff.
[0047] like Figures 5 to 7 As shown, a spray module connecting plate 2-3 is fixed to the bottom of the outer frame 2-1 of the crawling mechanism, and the spray mechanism 3 includes a profile frame 3-1, and protruding columns are vertically arranged at both ends of the profile frame 3-1. The two protruding columns are respectively fixed to the two ends of the spray module connecting plate 2-3.
[0048] Several nozzles 3-9 are arranged along the length direction of the side of the profile frame 3-1 through the nozzle fixing plate 3-2. The nozzle fixing plate 3-2 is fixed to the profile frame 3-1 through T-nuts, and the nozzles 3-9 are connected to the nozzle fixing plate 3-2 through bolts. The number of nozzles can be changed, and the switch state can be controlled independently. Each nozzle 3-9 can be moved and fixed on the profile, realizing the functions of adjustable spacing between nozzles 3-9, large spraying area, and variable spraying area, which can be used for outdoor large-area photovoltaic module coating.
[0049] In this embodiment, the height of the spraying mechanism 3 from the working surface is 3cm-30cm, the width of the spraying mechanism 3 is 0.5m-2m, the nozzle 3-9 in the spraying mechanism 3 is one or more of an ultrasonic nozzle, a gas-liquid nozzle or a pure liquid nozzle, the atomization particle size of the nozzle 3-9 is 10nm-100um, the nozzle angle is 15°-120°, the nozzle pressure is 0.5-5 MPa, and the nozzle duty cycle is 0-100%.
[0050] The suspension mechanism 4 includes a coating tube suspension rod 4-1, and the coating tube suspension rod 4-1 extends above the main frame 5; specifically, the suspension mechanism 4 is fixed to one end of the main frame 5 through a suspension rod support seat 4-2, and a suspension rod support base 4-3 is rotatably sleeved on the top of the suspension rod support seat 4-2, and is fixed by bolts of the support base 4-3. When the bolts are loose, the direction can be adjusted, and when they are tightened, the base can be fixed to ensure that there is no displacement. A suspension rod fixing seat 4-4 is fixed on the side of the suspension rod support base 4-3, and one end of the coating tube suspension rod 4-1 is fixed in the suspension rod fixing seat 4-4, and is fixed by bolts of the suspension rod fixing seat 4-4 to prevent the suspension rod fixing seat 4-4 from translating or rotating. The other end of the coating tube suspension rod 4-1 extends above the main frame 5, and is used for supporting and suspending the coating liquid pipeline, air pipe and circuit, so as to eliminate the influence of the air path, liquid path and circuit during the operation of the photovoltaic coating device.
[0051] The walking mechanism 1, the crawling mechanism 2 and the spraying mechanism 3 are started and stopped by the control mechanism. The control mechanism is also provided with a wireless communication and remote control module, which can be connected with one or more of a Bluetooth handle, a mobile phone app, and a computer software. The device can be powered by a battery or an external power supply.
[0052] This rail-mounted photovoltaic module spray coating device can also perform semi-automatic remote control spraying and other tasks.
[0053] Through the wireless communication and remote control module connected by the control mechanism, the system can perform related operations through the wireless remote control device. The specific steps are: configure the system working mode to semi-automatic working mode, and then the system waits to receive the remote control device command, and after receiving the command, it executes the corresponding operation.
[0054] The spraying mechanism is removed and replaced with a coating mechanism or a cleaning mechanism. The control system selects different working modes according to the different functional modules installed. Different functions can be achieved by replacing different functional modules without changing the main frame.
[0055] It should be noted that the parts in this embodiment that are the same or similar to those in Embodiments 1 and 2 can be referenced to each other and will not be described in detail in this application.
[0056] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
Claims
1. A rail-mounted photovoltaic module spray coating device, characterized in that: include: Control mechanism, walking mechanism, crawling mechanism, spraying mechanism, suspension mechanism and main frame; the control mechanism is used to control the walking mechanism, crawling mechanism and spraying mechanism; the crawling mechanism is mounted on the main frame, and the spraying mechanism is optionally installed at the bottom of the crawling mechanism; The walking mechanism is symmetrically arranged at both ends of the main frame; the walking mechanism includes walking wheels and limiting wheels, the limiting wheels of the walking mechanisms on both sides roll on the outer sides of the upper and lower frames of the photovoltaic module respectively, and the walking wheels roll on the frame of the photovoltaic module; The hanging mechanism is arranged at one end of the main frame, and comprises a coating tube hanging rod, and the coating tube hanging rod extends above the main frame; The crawling mechanism includes a driving roller and a support plate. The support plate is fixed on one side of the crawling mechanism. The motor of the driving roller is fixedly connected to a spring module. The side of the spring module away from the main frame is connected to the support plate through a compression spring stud. The driving roller rolls on the wall surface of one side of the main frame, and the crawling mechanism is provided with a smooth idler wheel corresponding to the driving roller on the other side of the main frame.
2. The rail-mounted photovoltaic module spray coating device according to claim 1, characterized in that: The main frame includes vertical profiles and transverse profiles. The top of the vertical profile is fixed at both ends of the transverse profile. Photoelectric baffles are provided on the sides of the transverse profiles for detecting the position of the crawling mechanism. A busbar rail is provided along the entire length of the lower surface of the transverse profile. The busbar rail is spliced in sections through connectors. A collector is slidably provided on the busbar rail for powering the device.
3. The rail-mounted photovoltaic module spray coating device according to claim 1, characterized in that: The walking mechanism includes a walking mechanism base plate, and walking wheels are provided at both ends of the walking mechanism base plate facing the photovoltaic module, one of the walking wheels is connected to a walking motor; angle brackets are respectively fixed to the lower part of both ends of the walking mechanism base plate, and a walking roller lower plate is fixed to the side of the angle bracket away from the photovoltaic module, the wheel axle of the limiting wheel is rotatably connected to the walking roller lower plate, and the limiting wheel extends from the gap at the bottom of the angle bracket to the frame of the photovoltaic module; the angle bracket and the walking roller lower plate are fixedly connected by bolts with compression springs.
4. The rail-mounted photovoltaic module spray coating device according to claim 1, characterized in that: The crawling mechanism includes an outer frame of the crawling mechanism and a motor wheel support. A support plate is fixed on one side of the outer frame of the crawling mechanism. The driving roller is arranged on a horizontal plane below the motor wheel support. The driving roller is connected to a motor. Spring modules are fixed below both ends of the motor wheel support through nuts with compression springs. Two spring modules are respectively arranged on both sides of the driving roller. The spring module is fixed to the motor housing. A stud with compression spring is arranged between the spring module and the support plate. When the stud with compression spring rotates, the spring module and the driving roller move horizontally. Smooth idler wheels are arranged on the horizontal plane and the vertical plane below the top of the outer frame of the crawling mechanism. The bottom of the smooth idler wheel on the vertical plane is supported on the main frame. The smooth idler wheel on the horizontal plane and the driving roller roll on the surfaces on both sides of the main frame respectively.
5. The rail-mounted photovoltaic module spray coating device according to claim 4, characterized in that: A spray module connecting plate is fixed at the bottom of the outer frame of the crawling mechanism. The spray mechanism includes a profile frame. Several nozzles are provided along the length direction of the side edge of the profile frame through a nozzle fixing plate. Protruding columns are vertically provided at both ends of the profile frame. The two protruding columns are respectively fixed to the two ends of the spray module connecting plate.
6. The rail-mounted photovoltaic module spray coating device according to claim 1, characterized in that: The hanging mechanism is fixed to one end of the main frame through a hanging rod support seat, the top of the hanging rod support seat is rotatably sleeved with a hanging rod support base, the side of the hanging rod support base is fixed with a hanging rod fixing seat, one end of the coating tube hanging rod is fixed in the hanging rod fixing seat, and the other end extends to the top of the main frame, which is used for supporting and hanging the coating liquid pipeline, air pipe and circuit.