A power transmission assembly and a photovoltaic cleaning robot

Abstract

The application relates to the field of photovoltaic module cleaning robots, in particular to a power transmission assembly and a photovoltaic cleaning robot. The power transmission assembly comprises two power output mechanisms arranged symmetrically and a transmission mechanism used for transmission connection of the two power output mechanisms and a driving motor. The power output mechanism comprises a mounting shell, a transmission connecting rod, a first mounting shaft and a second mounting shaft. The transmission connecting rod is in gear transmission connection with the first mounting shaft and the second mounting shaft. The first mounting shaft and the second mounting shaft are provided with mounting hole columns for mounting driving wheels at the ends away from the transmission connecting rod. The transmission mechanism comprises a first connecting shaft and a second connecting shaft. The first connecting shaft and the second connecting shaft are provided with a detection piece used for detecting whether the resistance of the two power output mechanisms exceeds a set value. Through the above scheme, power can be uniformly distributed to each driving wheel, the probability of deviation, jamming or obstacle failure of the photovoltaic cleaning robot caused by uneven power distribution of the driving wheels is reduced, and the control is facilitated.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic module cleaning device technology, specifically a power transmission component and a photovoltaic cleaning robot. Background Technology

[0002] The photovoltaic module obstacle-crossing cleaning robot is an intelligent device designed to address the challenge of cleaning the surface of photovoltaic modules during the operation and maintenance of photovoltaic power plants. Its core function is to efficiently and safely cross obstacles between photovoltaic modules and complete the cleaning operation.

[0003] The key to achieving the above effects lies in ensuring that the movement direction of the photovoltaic cleaning robot is always parallel to the installation direction of the photovoltaic panels. To this end, existing photovoltaic cleaning robots typically incorporate an anti-jamming correction mechanism, mainly comprising a follower arm, side wheels, a swing arm shaft, a swing detection element, and an elastic reset component. The middle of the follower arm is rotatably mounted on a mounting frame on one side of the photovoltaic cleaning robot via the swing arm shaft, and the side wheels are mounted at both ends of the follower arm. The elastic reset component is located on the mounting frame and acts elastically on the axles of the follower arm or side wheels. The swing detection element is also located on the mounting frame. By mounting the side wheels of the photovoltaic cleaning robot on the follower arm, using the elastic reset component to maintain a relatively stable state between the side wheels and the mounting frame, and using the swing detection element to detect the swing direction and position of the follower arm, the photovoltaic cleaning robot can be corrected in a timely manner, preventing jamming or obstacle-crossing failures.

[0004] The inventors discovered that the main factors causing the photovoltaic cleaning robot to jam or deviate from the photovoltaic panel in practical applications include deformation of the photovoltaic panel edges and uneven power distribution among the robot's drive wheels. These factors can cause the robot's direction of travel to deviate from the set direction. Using an anti-jamming correction mechanism to correct the robot's direction is clearly only a temporary solution.

[0005] With the installation precision of photovoltaic panels already improved, the key to enhancing the obstacle-crossing performance of photovoltaic cleaning robots, preventing position deviation, and achieving efficient cleaning of photovoltaic panels lies in how to achieve a uniform distribution of power among the various drive wheels. Summary of the Invention

[0006] To address the problems in the existing technology, the first objective of this application is to provide a power transmission component that can evenly distribute the power output from the drive motor to each drive wheel of the photovoltaic cleaning robot, reducing the probability of the photovoltaic cleaning robot veering off course, getting stuck, or failing to overcome obstacles due to uneven power distribution among the drive wheels. Based on the above power transmission component, the second objective of this application is to propose a photovoltaic cleaning robot capable of efficiently cleaning photovoltaic panels, the specific solution of which is as follows: A power transmission assembly for synchronizing the rotation of each drive wheel on the body of a cleaning robot, comprising two symmetrically arranged power output mechanisms and a transmission mechanism for connecting the two power output mechanisms to a drive motor. The power output mechanism includes a mounting housing, a transmission link disposed within the mounting housing and connected to the transmission mechanism, and a first mounting shaft and a second mounting shaft for mounting the drive wheel. The transmission link is coaxially and fixedly connected to the first mounting shaft, and a first bevel gear is fixedly sleeved at one end close to the first mounting shaft, while a third bevel gear that is connected to the transmission mechanism is fixedly sleeved at the other end away from the first mounting shaft. The second mounting shaft is perpendicular to the first mounting shaft and a second bevel gear is fitted at one end near the first mounting shaft. The first bevel gear meshes with the second bevel gear. The first and second mounting shafts are provided with mounting holes for mounting drive wheels at the ends away from the transmission connecting rod. The transmission mechanism includes a first shaft and a second shaft that are synchronously rotated. A detection element is provided between the first shaft and the second shaft to detect whether the resistance of the two power output mechanisms exceeds a set value. The detection element is connected to an external warning unit. A fourth bevel tooth that meshes with the third bevel tooth is fixedly provided at the ends of the first shaft and the second shaft that are far apart from each other.

[0007] Through the above technical solution, two symmetrically arranged power output mechanisms, synchronously driven by a single drive motor, can evenly distribute the power output by the drive motor to each drive wheel of the photovoltaic cleaning robot. This reduces the probability of the photovoltaic cleaning robot running off course, getting stuck, or failing to overcome obstacles due to uneven power distribution in the drive wheels. At the same time, through the resistance detection device set between the two power output mechanisms, the resistance encountered by the two power output mechanisms during driving can be detected in real time. That is, when the drive wheels on both sides of the cleaning robot are subjected to uneven force, an early warning can be output in time to remind the staff to maintain and adjust the position of the equipment or photovoltaic panels, thereby reducing the probability of the cleaning robot running off course.

[0008] Furthermore, a clamping sleeve is integrally provided at one end of the first connecting shaft near the second connecting shaft, and a plug-in post adapted to the shape and size of the slot inside the clamping sleeve is provided at one end of the second connecting shaft facing the first connecting shaft. The first connecting shaft and the second connecting shaft are plugged into each other. The clamping sleeve is provided with an elastic cylindrical pin for limiting the clamping sleeve and the first coupling shaft; The detection element includes a pressure sensor disposed between the slot and the plug post.

[0009] Through the above technical solution, the relative position of the first and second couplings can be finely adjusted along the axial direction, allowing the meshing state of the third and fourth bevel teeth to be adjusted during equipment maintenance, so that they always maintain the best transmission state. By setting a pressure sensor, the pressure between the first and second couplings when they rotate can be detected. If the resistance experienced by one increases, the pressure sensor will experience an increase in pressure, thus making it easy to know the difference in resistance experienced by the two drive wheels of the cleaning robot.

[0010] Furthermore, the drive motor includes a motor body and a reduction gearbox that is driven to the power output shaft of the motor body. The power output wheel of the reduction gearbox is driven to the power receiving wheel sleeved on the first or second coupling shaft, so as to transmit the power of the power output shaft of the motor body to the first or second coupling shaft.

[0011] The above technical solution can make the driving force on the first and second couplings more stable.

[0012] Furthermore, a housing seat is fitted onto the transmission mechanism, and a protective housing seat is fitted onto both of the power output mechanisms. The housing seat and the protective housing seat are fixedly connected, and both are equipped with mounting bearings inside.

[0013] The above technical solution not only facilitates the maintenance of the power transmission components, but also ensures the stability of the position of the two power output mechanisms, making the driving force on both drive wheels more stable.

[0014] Based on the aforementioned power transmission components, this application also proposes a photovoltaic module obstacle-crossing cleaning robot for cleaning photovoltaic panels. The robot includes a cleaning robot body and cleaning components. The cleaning robot body has a pair of mutually perpendicular first and second drive wheels on both sides. The axis of the first drive wheel is perpendicular to the photovoltaic panel, and a C-shaped limiting groove is formed between the first drive wheel and the cleaning robot body to limit its movement along the photovoltaic panel's installation direction. The axis of the second drive wheel is parallel to the photovoltaic panel, and its wheel surface is configured to contact the sidewall or bottom surface of the photovoltaic panel. When the first and second drive wheels rotate, they drive the cleaning robot body to move along the photovoltaic panel. A power transmission assembly as described above is provided between the first drive wheel and the second drive wheel to enable the first drive wheel and the second drive wheel to rotate synchronously.

[0015] The above technical solution enables all drive wheels of the cleaning robot to move synchronously, reducing the risk of the cleaning robot running off course and getting stuck or failing to overcome obstacles due to positional deviation during its movement.

[0016] Furthermore, an installation frame is provided along the edge of the side of the cleaning robot body away from the photovoltaic panel, and a support frame is fixedly connected to the installation frame. The cleaning assembly includes a liquid storage tank mounted on a support frame and a connecting conduit connected to the liquid storage tank. A connecting hose is connected to the end of the connecting conduit away from the liquid storage tank. The end of the connecting hose away from the connecting conduit opens downward through the support frame and is equipped with a water supply control mechanism for controlling its conduction state. The mounting frame is rotatably connected to a first cleaning roller and a second cleaning roller near its two ends, and the first cleaning roller and the second cleaning roller are covered with a scouring pad.

[0017] Furthermore, the water supply control mechanism includes a driven regulating component and an active regulating component; The driven adjustment component includes a fixed mounting frame, on which a bearing seat is fixedly mounted. A mating frame is rotatably connected to the side end of the bearing seat via a bearing. A rotating roller is coaxially mounted on the end of the mating frame away from the bearing seat, and a first gear is mounted on the end of the rotating roller away from the mating frame. The active adjustment component includes hydraulic adjustment rods symmetrically arranged on both sides of the support frame plate. The fixed section of the hydraulic adjustment rod is perpendicular to and fixedly connected to the support frame plate, and the end of the telescopic section passes through the support frame plate and is fixedly connected to an adapter top plate. A support sleeve is fixedly connected to the side of the adapter top plate away from the hydraulic adjustment rod. The support sleeve is fixedly connected to the fixed mounting frame and drives the driven adjustment component to move up and down through the fixed mounting frame. A limiting mechanism for controlling the flow rate of the connecting hose is provided between the support sleeves located on both sides of the support frame plate via a bearing. The limiting mechanism is configured as an eccentric shaft that cooperates with the rotating roller. The two ends of the eccentric shaft are coaxially fixed with a first friction drive ring and a second friction drive ring for contacting the photovoltaic panel. The end of the eccentric shaft near the first gear is coaxially provided with a second gear that meshes with the first gear. The open end of the connecting hose passes through the gap between the rotating roller and the eccentric shaft. When the telescopic section of the hydraulic adjusting rod moves downward a set distance, both the first friction drive ring and the second friction drive ring come into contact with the photovoltaic panel, and the eccentric shaft rotates due to the friction between themselves and the photovoltaic panel during their movement. When the eccentric shaft rotates within a first angle range, the gap between the eccentric shaft and the rotating roller increases, and the connecting hose becomes conductive; When the eccentric shaft rotates within a second angular range, the gap between the eccentric shaft and the rotating roller decreases, and the connecting hose is squeezed shut off.

[0018] With the above technical solution, when the cleaning robot moves along the installation direction of the photovoltaic panel, the cleaning liquid in the storage tank can be evenly dripped onto the photovoltaic panel to ensure the cleaning effect. At the same time, the cleaning robot body, which is symmetrically arranged front and back, has a more uniform mass distribution, which reduces the risk of deviation during movement.

[0019] This application includes at least one of the following beneficial effects: (1) By setting up a power transmission component, the power output of the drive motor can be evenly distributed to each drive wheel of the photovoltaic cleaning robot, reducing the probability of the photovoltaic cleaning robot running off course and getting stuck or failing to overcome obstacles due to uneven power distribution of the drive wheels. (2) The liquid storage tank can store water, which can then be guided to the connecting hose through the connecting pipe. The water supply control mechanism can control the connection status of the connecting hose, making it convenient to control the amount of water for cleaning through the connecting hose. At the same time, the first cleaning roller and the second cleaning roller can rotate to clean the photovoltaic panel, thus facilitating efficient cleaning.

[0020] (3) The water supply control mechanism facilitates connection control. The first friction drive ring and the second friction drive ring can rotate on the photovoltaic panel. When the cleaning robot moves on the photovoltaic panel, it drives the first friction drive ring and the second friction drive ring to rotate, so that the second gear and the eccentric shaft rotate accordingly. The second gear meshes with the first gear, which can control the rotation of the rotating roller. The contact between the rotating roller and the eccentric shaft can block the connection hose by squeezing. At the same time, when the protrusion on the eccentric shaft does not contact the rotating roller, the connection hose can be connected to supply water to the scouring pad. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a three-dimensional structural diagram of the main body from a frontal perspective in this invention; Figure 2 This is a perspective view of the cleaning robot body in this invention; Figure 3 This is an exploded view of the cleaning robot body in this invention; Figure 4 This is a perspective view of the water supply control mechanism in this invention; Figure 5 This is a perspective view of the driven adjustment component in this invention; Figure 6 This is a three-dimensional structural diagram of the frontal view of the active adjustment component in this invention; Figure 7 This is a perspective side view of the limiting mechanism in this invention; Figure 8This is a perspective view of the power transmission structure in this invention; Figure 9 This is an exploded view of the power transmission structure in this invention; Figure 10 This is an exploded view of the transmission mechanism in this invention.

[0023] In the diagram: 1-Photovoltaic panel, 2-Cleaning robot body, 3-Connecting conduit, 4-Liquid storage tank, 5-Supporting frame plate, 6-Connecting hose, 7-Mounting frame, 8-Power transmission structure, 9-First drive wheel, 10-Second drive wheel, 11-First cleaning roller, 12-Water supply control mechanism, 13-Second cleaning roller, 14-Driven adjustment component, 15-Active adjustment component, 16-First gear, 17-Rotating roller, 18-Matching frame, 19-Bearing seat, 20-Fixed mounting frame, 21-Restriction mechanism, 22-Support sleeve 23-Adaptive top plate, 24-Hydraulic adjusting rod, 25-First friction drive ring, 26-Eccentric shaft, 27-Second friction drive ring, 28-Second gear, 29-Drive motor, 30-Casing seat, 31-First mounting shaft, 32-Second mounting shaft, 33-Second bevel gear, 34-First bevel gear, 35-Protective sleeve seat, 36-Transmission connecting rod, 37-Third bevel gear, 38-Fourth bevel gear, 39-Transmission mechanism, 40-First connecting shaft, 41-Elastic cylindrical pin, 42-Clamping sleeve, 43-Second connecting shaft. Detailed Implementation

[0024] The embodiments of this application are described in detail below, and examples of the embodiments are provided in the appendix. Figure 1-10 As shown in the image.

[0025] In the description of this specification, the references to "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the described embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] A power transmission component is used to synchronously rotate the drive wheels on the body of a cleaning robot, combined with... Figure 1 and Figure 8 As shown, it includes two power output mechanisms arranged symmetrically, and a transmission mechanism 39 for connecting the two power output mechanisms to the drive motor 29. like Figure 9As shown, the power output mechanism includes a mounting housing, a transmission link 36 disposed within the mounting housing and connected to the transmission mechanism 39, and a first mounting shaft 31 and a second mounting shaft 32 for mounting the drive wheel.

[0027] The transmission link 36 is coaxially and fixedly connected to the first mounting shaft 31, with a first bevel gear 34 fixedly sleeved at one end near the first mounting shaft 31, and a third bevel gear 37, which is connected to the transmission mechanism 39, fixedly sleeved at the other end away from the first mounting shaft 31. The second mounting shaft 32 is perpendicular to the first mounting shaft 31, with a second bevel gear 33 sleeved at one end near the first mounting shaft 31; the first bevel gear 34 meshes with the second bevel gear 33. Mounting holes for mounting drive wheels are provided at the ends of the first mounting shaft 31 and the second mounting shaft 32 away from the transmission link 36.

[0028] The transmission mechanism 39 includes a first shaft 40 and a second shaft 43 that are synchronously rotatably connected. A detection element is provided between the first shaft 40 and the second shaft 43 to detect whether the resistance experienced by the two power output mechanisms exceeds a set value. The detection element is signal-connected to an external warning unit, such as the control module of a cleaning robot. A fourth bevel gear 38 is fixedly provided at the ends of the first shaft 40 and the second shaft 43 that are far apart from each other, meshing with the third bevel gear 37, thereby achieving high-precision transmission.

[0029] like Figure 10 As shown, a clamping sleeve 42 is integrally formed at one end of the first coupling 40 near the second coupling 43. A plug-in post, adapted to the shape and size of the slot inside the clamping sleeve 42, is provided at the end of the second coupling 43 facing the first coupling 40. The first coupling 40 and the second coupling 43 are plugged into each other. An elastic cylindrical pin 41 is provided on the clamping sleeve 42 to limit the connection between the clamping sleeve 42 and the first coupling 40. In this embodiment, the detection element includes a pressure sensor disposed between the slot and the plug-in post. In this embodiment, a sheet-like pressure sensor is used. When the first coupling 40 is driven to rotate by the second coupling 43, the pressure sensor outputs a stable pressure. When the movement of the first coupling 40 or the second coupling 43 is obstructed, the output value of the pressure sensor increases, thereby being detected by an external warning unit.

[0030] Combination Figure 8 and Figure 9 As shown, the drive motor 29 includes a motor body and a reduction gearbox that is driven to the power output shaft of the motor body. The power output wheel of the reduction gearbox is driven to the power receiving wheel sleeved on the first coupling 40 or the second coupling 43, so as to transmit the power of the power output shaft of the motor body to the first coupling 40 or the second coupling 43.

[0031] Detailed, such as Figure 9As shown, a housing seat 30 is fitted on the transmission mechanism 39, and a protective housing seat 35 is fitted on both of the power output mechanisms. The housing seat 30 and the protective housing seat 35 are fixedly connected, and both are equipped with mounting bearings inside to stably install components such as the first connecting shaft 40, the second connecting shaft 43, the first mounting shaft 31, and the transmission connecting rod 36.

[0032] Based on the aforementioned power transmission components, this application also discloses a photovoltaic module obstacle-crossing cleaning robot for cleaning photovoltaic panels 1. Figure 1 As shown, it includes the cleaning robot body 2 and cleaning components.

[0033] Combination Figure 3 As shown, the cleaning robot body 2 has a pair of mutually perpendicular first drive wheels 9 and second drive wheels 10 on both sides. The axis of the first drive wheel 9 is perpendicular to the photovoltaic panel, and a C-shaped limiting groove is formed between the first drive wheel 9 and the cleaning robot body 2 to limit its movement along the photovoltaic panel installation direction. In practical applications, the wheel surface of the first drive wheel 9 contacts the bracket of the photovoltaic panel 1, driving the cleaning robot body 2 to move along the photovoltaic panel 1 installation direction. The axis of the second drive wheel 10 is parallel to the photovoltaic panel 1, and its wheel surface is configured to contact the side wall or bottom surface of the photovoltaic panel 1. When the second drive wheel 10 rotates, it drives the cleaning robot body 2 to move along the photovoltaic panel 1 installation direction.

[0034] To ensure that the first drive wheel 9 and the second drive wheel 10 rotate synchronously, a power transmission assembly as described above is provided between the first drive wheel 9 and the second drive wheel 10 to ensure that the first drive wheel 9 and the second drive wheel 10 rotate synchronously, thereby reducing the probability of the cleaning robot body 2 running off course, getting stuck, or failing to overcome obstacles during operation.

[0035] Detailed, combined Figure 2 and Figure 3 As shown, a mounting frame 7 is provided along the edge of the side of the cleaning robot body 2 away from the photovoltaic panel. The mounting frame 7 forms an installation space for mounting various devices. In this embodiment, the mounting frame 7 is the cleaning robot body 2, meaning the cleaning robot body 2 is generally rectangular. A support plate 5 is bolted to the edge of the opening of the mounting frame 7. The aforementioned cleaning components include a liquid storage tank 4 mounted on the support plate 5 and a connecting conduit 3 connected to the liquid storage tank 4. Figure 2 As shown, the number of liquid storage tanks 4 is configured as two, and in order to ensure the uniform distribution of mass on the cleaning robot body 2, the two liquid storage tanks 4 are symmetrically arranged with the cross section in the length direction of the mounting frame 7 as the plane of symmetry.

[0036] The connecting conduit 3 is made of metal conduit, and a connecting hose 6 is connected to the end of the conduit away from the liquid storage tank 4. The end of the connecting hose 6 away from the connecting conduit 3 has an opening and passes downward through the support frame plate 5. A water supply control mechanism 12 for controlling the conduction state of the connecting hose 6 is provided at the end near the opening of the connecting hose 6.

[0037] A first cleaning roller 11 and a second cleaning roller 13 are rotatably connected to the mounting frame 7 near its two ends via bearings. The first cleaning roller 11 and the second cleaning roller 13 are covered with a scouring pad or a cleaning sponge. In a specific embodiment, at least one of the first cleaning roller 11 and the second cleaning roller 13 is equipped with a cleaning motor to drive the first cleaning roller 11 and / or the second cleaning roller 13 to rotate actively in order to improve the cleaning effect.

[0038] Detailed, combined Figures 4-7 As shown, the water supply control mechanism 12 includes a driven regulating component 14 and an active regulating component 15.

[0039] like Figure 5 As shown, the driven adjustment component 14 includes a fixed mounting bracket 20, on which a bearing seat 19 is integrally connected. A mating bracket 18 is rotatably connected to the side end of the bearing seat 19 via a bearing. A rotating roller 17 is coaxially arranged at the end of the mating bracket 18 away from the bearing seat 19. A first gear 16 is sleeved at the end of the rotating roller 17 away from the mating bracket 18.

[0040] like Figure 6 and Figure 7 As shown, the active adjustment component 15 includes hydraulic adjustment rods 24 symmetrically arranged on both sides of the support frame plate 5. Two hydraulic adjustment rods 24 are configured on each side. The fixed section of the hydraulic adjustment rod 24, i.e., the hydraulic sleeve, is perpendicular to and fixedly connected to the support frame plate 5. In practical applications, it can be fixed using bolts or flanges. The telescopic end of the hydraulic adjustment rod 24 passes through the support frame plate 5 and is fixedly connected downwards to an adapter top plate 23. A support sleeve 22 is fixedly connected to the side of the adapter top plate 23 away from the hydraulic adjustment rod 24. In practical applications, the two can be fixedly connected by welding. Figure 4 As shown, the support sleeve 22 is fixedly connected to the fixed mounting bracket 20, so that when the active adjustment component 15 moves up and down under the drive of the hydraulic adjustment rod 24, the driven adjustment component 14 can be driven to move up and down via the fixed mounting bracket 20.

[0041] like Figure 6 and Figure 7 As shown, a limiting mechanism 21 for controlling the flow rate of the connecting hose 6 is provided between the support sleeves 22 on both sides of the support frame plate 5 via a bearing.

[0042] In detail, in this embodiment of the application, the limiting mechanism 21 is configured as an eccentric shaft 26 that cooperates with the rotating roller 17. A first friction drive ring 25 and a second friction drive ring 27 for contacting the photovoltaic panel are coaxially fixed at both ends of the eccentric shaft 26. The first friction drive ring 25 and the second friction drive ring 27 are preferably made of rubber, and their outer diameter is larger than the maximum outer diameter of the eccentric shaft 26. A second gear 28 that meshes with the first gear 16 is coaxially disposed at the end of the eccentric shaft 26 near the first gear 16. The open end of the connecting hose 6 passes through the gap between the rotating roller 17 and the eccentric shaft 26.

[0043] In practical applications, when the telescopic section of the hydraulic adjusting rod 24 moves downward a set distance, both the first friction drive ring 25 and the second friction drive ring 27 come into contact with the photovoltaic panel. Through friction between themselves and the photovoltaic panel during their movement, they drive the eccentric shaft 26 to rotate. The rotation of the eccentric shaft 26, through the transmission between the first gear 16 and the second gear 28, drives the rotating roller 17 to rotate. Due to the rotation of the eccentric shaft 26, the gap between it and the rotating roller 17 varies, allowing the cleaning liquid in the connecting hose 6 to occasionally drip onto the surface of the photovoltaic panel 1. Furthermore, as can be seen from the above working process, theoretically, regardless of the movement speed of the cleaning robot body 2, the cleaning liquid dripping onto the photovoltaic panel 1 is uniformly distributed.

[0044] In a particular embodiment, a nozzle is provided at the opening of the connecting hose 6, and a pressurizing device is also connected to the liquid storage tank 4 so that the cleaning liquid output from the connecting hose 6 can intermittently flush the surface of the photovoltaic panel 1 with greater pressure.

[0045] The working principle is as follows: When in use, the user places the cleaning robot 2 on the photovoltaic panel 1. At this time, the first drive wheel 9 and the second drive wheel 10 are in contact with the photovoltaic panel 1, and water is stored in the storage tank 4, which controls the operation of the equipment. First, the drive motor 29 is controlled to work. The drive motor 29 can drive the transmission mechanism 39 to rotate in the housing 30. The second connecting shaft 43 is fixed to the first connecting shaft 40 through the clamping sleeve 42. The first connecting shaft 40 and the second connecting shaft 43 cooperate. The first connecting shaft 40 and the clamping sleeve 42 are limited and connected by the elastic cylindrical pin 41. Thus, when the drive motor 29 is driven and controlled, the fourth bevel teeth 38 on both sides rotate, realizing the power transmission function.

[0046] Both sides of the fourth bevel gear 38 can drive the symmetrical third bevel gear 37 to rotate, so that the third bevel gear 37 drives the transmission link 36 and the first mounting shaft 31 to rotate and cooperate. The transmission link 36 and the first mounting shaft 31 are fixedly provided with the first bevel gear 34, and the upper end of the first bevel gear 34 is meshed with the second bevel gear 33, controlling the second mounting shaft 32 to rotate and cooperate. The protective sleeve 35 provides support and protection. The first drive wheel 9 and the second drive wheel 10 are respectively connected to the first mounting shaft 31 and the second mounting shaft 32, thereby controlling the first drive wheel 9 and the second drive wheel 10 to rotate on the photovoltaic panel 1, so that the cleaning robot 2 can cooperate to perform motion adjustment work.

[0047] When the cleaning robot 2 moves, the first cleaning roller 11 and the second cleaning roller 13 are driven by motors to clean the photovoltaic panel 1. The liquid storage tank 4 is connected to the connecting hose 6 through the connecting conduit 3. At the same time, the connection status can be easily adjusted through the water supply control mechanism 12.

[0048] The hydraulic adjustment rod 24 can push and adapt to the top plate 23 and the support sleeve 22, so that the limiting mechanism 21 reaches the bottom position. At the same time, it drives the driven adjustment component 14 to adjust accordingly. At this time, the first friction drive ring 25 and the second friction drive ring 27 are in contact with the photovoltaic panel 1 and can rotate, driving the eccentric shaft 26 and the second gear 28 to rotate and cooperate. The side end of the second gear 28 is meshed with the first gear 16, controlling the rotation of the first gear 16, so that the rotating roller 17 can rotate and adjust on the bearing seat 19 through the cooperating frame 18. At this time, the rotation of the eccentric shaft 26 can cooperate with the rotating roller 17. When the protruding position is in contact with the rotating roller 17, it can squeeze and limit the connecting hose 6. When the concave position is in contact with the rotating roller 17, it can loosen the connecting hose 6, so that the liquid in the connecting hose 6 drips down, and the water supply is intermittent, which better ensures the water usage.

[0049] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A power transmission component, characterized in that, The system is designed to enable the drive wheels on the cleaning robot body to rotate synchronously, including two symmetrically arranged power output mechanisms and a transmission mechanism (39) for connecting the two power output mechanisms to the drive motor (29). The power output mechanism includes a mounting housing and a transmission link (36) disposed in the mounting housing and connected to the transmission mechanism (39) for transmission, as well as a first mounting shaft (31) and a second mounting shaft (32) for mounting the drive wheel. The transmission link (36) is coaxially and fixedly connected to the first mounting shaft (31), and a first bevel gear (34) is fixedly sleeved at one end close to the first mounting shaft (31), and a third bevel gear (37) that is connected to the transmission mechanism (39) is fixedly sleeved at the other end away from the first mounting shaft (31). The second mounting shaft (32) is perpendicular to the first mounting shaft (31) and a second bevel gear (33) is fitted at one end close to the first mounting shaft (31). The first bevel gear (34) meshes with the second bevel gear (33). The first mounting shaft (31) and the second mounting shaft (32) are provided with mounting holes for mounting the drive wheel at the ends away from the transmission connecting rod (36). The transmission mechanism (39) includes a first shaft (40) and a second shaft (43) that are synchronously rotated. A detection element is provided between the first shaft (40) and the second shaft (43) for detecting whether the resistance of the two power output mechanisms exceeds a set value. The detection element is connected to an external warning unit. A fourth bevel tooth (38) that meshes with the third bevel tooth (37) is fixedly provided at the ends of the first shaft (40) and the second shaft (43) that are far apart from each other.

2. The power transmission assembly according to claim 1, characterized in that: The first connecting shaft (40) is integrally provided with a clamping sleeve (42) at one end near the second connecting shaft (43), and the second connecting shaft (43) is provided with a plug-in post at one end facing the first connecting shaft (40) that is adapted to the shape and size of the slot inside the clamping sleeve (42). The first connecting shaft (40) and the second connecting shaft (43) are plugged into each other. The clamping sleeve (42) is provided with an elastic cylindrical pin (41) for limiting the clamping sleeve (42) and the first connecting shaft (40). The detection element includes a pressure sensor disposed between the slot and the plug post.

3. A power transmission assembly according to claim 1, characterized in that: The drive motor (29) includes a motor body and a reduction gearbox that is connected to the power output shaft of the motor body. The power output wheel of the reduction gearbox is connected to the power receiving wheel sleeved on the first connecting shaft (40) or the second connecting shaft (43) to transmit the power of the power output shaft of the motor body to the first connecting shaft (40) or the second connecting shaft (43).

4. A power transmission assembly according to claim 3, characterized in that: The mounting housing includes a housing seat (30) sleeved on the transmission mechanism (39) and a protective sleeve seat (35) sleeved on the two power output mechanisms. The housing seat (30) and the protective sleeve seat (35) are fixedly connected, and both are provided with mounting bearings inside.

5. A photovoltaic module obstacle-crossing cleaning robot for cleaning photovoltaic panels (1), comprising a cleaning robot body (2) and cleaning components, characterized in that: The cleaning robot body (2) has a pair of mutually perpendicular first drive wheels (9) and second drive wheels (10) on both sides. The axis of the first drive wheel (9) is perpendicular to the photovoltaic panel, and a C-shaped limiting groove is formed between the first drive wheel (9) and the cleaning robot body (2) to limit its movement along the photovoltaic panel installation direction. The axis of the second drive wheel (10) is parallel to the photovoltaic panel, and its wheel surface is configured to contact the side wall or bottom surface of the photovoltaic panel. When the first drive wheel (9) and the second drive wheel (10) rotate, they drive the cleaning robot body (2) to move along the photovoltaic panel. A power transmission assembly as described in any one of claims 1-4 is provided between the first drive wheel (9) and the second drive wheel (10) to enable the first drive wheel (9) and the second drive wheel (10) to rotate synchronously.

6. A photovoltaic module obstacle-crossing cleaning robot according to claim 5, characterized in that: The cleaning robot body (2) has an installation frame (7) on the side away from the photovoltaic panel along its edge, and a support frame plate (5) is fixedly connected to the installation frame (7). The cleaning assembly includes a liquid storage tank (4) mounted on a support plate (5) and a connecting conduit (3) connected to the liquid storage tank (4). A connecting hose (6) is connected to one end of the connecting conduit (3) away from the liquid storage tank (4). The other end of the connecting hose (6) away from the connecting conduit (3) opens downward through the support plate (5) and is provided with a water supply control mechanism (12) for controlling its conduction state. The mounting frame (7) is rotatably connected to a first cleaning roller (11) and a second cleaning roller (13) near its two ends. The first cleaning roller (11) and the second cleaning roller (13) are covered with scouring pads.

7. A photovoltaic module obstacle-crossing cleaning robot according to claim 6, characterized in that: The water supply control mechanism (12) includes a passive regulating component (14) and an active regulating component (15). The driven adjustment component (14) includes a fixed mounting bracket (20), on which a bearing seat (19) is fixedly mounted. A mating bracket (18) is rotatably connected to the side end of the bearing seat (19) via a bearing. A rotating roller (17) is coaxially arranged at the end of the mating bracket (18) away from the bearing seat (19). A first gear (16) is arranged at the end of the rotating roller (17) away from the mating bracket (18). The active adjustment component (15) includes hydraulic adjustment rods (24) symmetrically arranged on both sides of the support frame plate (5). The fixed section of the hydraulic adjustment rod (24) is perpendicular to and fixedly connected to the support frame plate (5). The end of the telescopic section passes through the support frame plate (5) and is fixedly connected to an adapter top plate (23). A support sleeve (22) is fixedly connected to the side of the adapter top plate (23) away from the hydraulic adjustment rod (24). The support sleeve (22) is fixedly connected to the fixed mounting frame (20) and drives the driven adjustment component (14) to move up and down through the fixed mounting frame (20). A limiting mechanism (21) for controlling the conduction flow of the connecting hose (6) is provided between the support sleeves (22) on both sides of the support frame plate (5) via a bearing. The limiting mechanism (21) is configured as an eccentric shaft (26) that cooperates with the rotating roller (17). The two ends of the eccentric shaft (26) are coaxially fixed with a first friction drive ring (25) and a second friction drive ring (27) for contacting the photovoltaic panel. The end of the eccentric shaft (26) near the first gear (16) is coaxially provided with a second gear (28) that meshes with the first gear (16). The open end of the connecting hose (6) passes through the gap between the rotating roller (17) and the eccentric shaft (26). When the extension section of the hydraulic adjusting rod (24) moves downward by a set distance, the first friction drive ring (25) and the second friction drive ring (27) come into contact with the photovoltaic panel and drive the eccentric shaft (26) to rotate by friction between themselves and the photovoltaic panel during their movement. When the eccentric shaft (26) rotates within a first angle range, the gap between the eccentric shaft (26) and the rotating roller (17) increases, and the connecting hose (6) becomes open. When the eccentric shaft (26) rotates within a second angle range, the gap between the eccentric shaft (26) and the rotating roller (17) decreases, and the connecting hose (6) is squeezed shut off.

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