Photovoltaic cleaning vehicle

Abstract

The utility model relates to a cleaning vehicle technical field discloses a photovoltaic cleaning vehicle, including the car body and cleaning mechanism, and cleaning mechanism is set up on the car body through the slewing mechanism, and cleaning mechanism includes cleaning arm body, adjusting assembly and cleaning roller brush, and cleaning arm body includes the curved big arm, swing arm and small arm, and one end of curved big arm is with first axis as the rotating shaft and is rotatably installed on the slewing mechanism, and one end of swing arm is with second axis as the rotating shaft and is rotatably connected in the other end of curved big arm, and one end of small arm is with third axis as the rotating shaft and is rotatably connected in the other end of swing arm, and cleaning roller brush rotatably installs in the other end of small arm, and adjusting assembly includes adjusting drive source and angle detector, and adjusting drive source and angle detector electric connection, and angle detector sets up on the slewing mechanism for detecting the angle between the slewing surface of slewing mechanism and ground, and adjusting drive source drive connection curved big arm is used for driving curved big arm to rotate. The cleaning effect is better, and the operation safety is higher.

Description

Technical Field

[0001] This utility model relates to the field of cleaning vehicle technology, and in particular to a photovoltaic cleaning vehicle. Background Technology

[0002] With the acceleration of industrialization and urbanization, and the rise of emerging economies, global energy demand continues to grow, leading to a significant increase in the application of photovoltaic (PV) power generation. As the core power generation unit of a PV power plant, the surface cleanliness of the PV module directly affects its photoelectric conversion efficiency. Before the large-scale application of PV cleaning vehicles, the industry mainly relied on manual cleaning and simple mechanical cleaning, both of which have significant drawbacks and low cleaning efficiency. Given the large-scale development of the global PV industry, the increasing demand for higher power generation efficiency in PV power plants, and the significant limitations of traditional cleaning methods, mechanization and automation have become the mainstream approach to cleaning PV modules, ensuring the long-term power generation benefits of PV power plants. Current technologies mostly rely on a "vehicle-mounted robotic arm + roller brush" system, using vehicle movement to replace manual labor for "mobile cleaning." However, existing cleaning vehicles are only suitable for centralized power plants on flat ground with "neatly arranged, unobstructed modules," and cannot handle complex scenarios such as slopes (>5°) and rooftops. Utility Model Content

[0003] Based on the above, the purpose of this utility model is to provide a photovoltaic cleaning vehicle that is suitable for bumpy and uneven roads, has a better cleaning effect on photovoltaic panels, and is safer to operate.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A photovoltaic cleaning vehicle includes a vehicle body and a cleaning mechanism. The cleaning mechanism is mounted on the vehicle body via a rotary mechanism and includes a cleaning arm, an adjustment component, and a cleaning roller.

[0006] The cleaning arm includes a curved upper arm, a swing arm, and a lower arm. One end of the curved upper arm is rotatably mounted on the rotary mechanism about a first axis, which is perpendicular to the rotation axis of the rotary mechanism. One end of the swing arm is rotatably connected to the other end of the curved upper arm about a second axis, which is perpendicular to the first axis. One end of the lower arm is rotatably connected to the other end of the swing arm about a third axis, which is perpendicular to the length direction of the swing arm. The cleaning roller brush is rotatably mounted on the other end of the lower arm.

[0007] The adjustment assembly includes an adjustment drive source and an angle detector. The adjustment drive source is electrically connected to the angle detector. The angle detector is disposed on the slewing mechanism and is used to detect the angle between the slewing surface of the slewing mechanism and the ground. The adjustment drive source is connected to the curved boom and is used to drive the curved boom to rotate.

[0008] As a preferred embodiment of a photovoltaic cleaning vehicle, the adjustment drive source is a hydraulic cylinder, one end of which is rotatably connected to the rotary mechanism, and the other end is hinged to the curved boom via a hinge seat.

[0009] As a preferred embodiment of a photovoltaic cleaning vehicle, the curved boom includes a first boom segment and a second boom segment. The length directions of the first boom segment and the second boom segment are set at an angle. One end of the first boom segment is rotatably mounted on the rotary mechanism, and one end of the second boom segment is rotatably connected to the swing arm.

[0010] As a preferred embodiment of a photovoltaic cleaning vehicle, an arc-shaped arm segment connects the first arm segment and the second arm segment.

[0011] As a preferred embodiment of a photovoltaic cleaning vehicle, the cleaning roller brush includes a roller and a mounting base. The mounting base is rotatably mounted on the end of the forearm away from the swing arm about a fourth axis. The roller is rotatably mounted on the mounting base with its central axis as the pivot. The fourth axis is parallel to the third axis.

[0012] As a preferred embodiment of a photovoltaic cleaning vehicle, a swing cylinder is connected between the cleaning roller brush and the forearm.

[0013] As a preferred embodiment of a photovoltaic cleaning vehicle, it also includes a hydraulic system, which is connected to the swing cylinder via a first oil supply line, and a first unloading valve is connected to the first oil supply line.

[0014] As a preferred embodiment of a photovoltaic cleaning vehicle, a first drive cylinder is connected between the forearm and the swing arm.

[0015] As a preferred embodiment of a photovoltaic cleaning vehicle, it also includes a hydraulic system, which is connected to the first drive cylinder via a second oil supply line, and a second unloading valve is connected to the second oil supply line.

[0016] As a preferred embodiment of a photovoltaic cleaning vehicle, a second drive cylinder is connected between the swing arm and the bending boom.

[0017] The beneficial effects of this utility model are as follows:

[0018] This utility model provides a photovoltaic cleaning vehicle, which includes a vehicle body and a cleaning mechanism. By adjusting the position of the rotating mechanism and the curved boom, as well as the angles of the swing arm relative to the curved boom and the forearm relative to the swing arm, the cleaning roller brush is made to flatly contact the photovoltaic panel to be cleaned. As the photovoltaic cleaning vehicle moves, the cleaning roller brush cleans the photovoltaic panel. During the journey, when encountering uneven road surfaces, an angle detector detects the overall tilt of the cleaning mechanism in real time, adjusting the drive source to drive the curved boom to rotate according to the detection, ensuring that the cleaning roller brush always maintains flat contact with the photovoltaic panel. This timely response avoids excessive pressure on the photovoltaic panel, preventing damage, or the brush drifting away from the panel, resulting in incomplete cleaning. This photovoltaic cleaning vehicle is suitable for bumpy and uneven road surfaces, provides excellent cleaning effect for photovoltaic panels, and offers high operational safety. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the photovoltaic cleaning vehicle from one perspective, provided by an embodiment of the present invention;

[0021] Figure 2 This is a structural schematic diagram of the photovoltaic cleaning vehicle from another perspective, provided by an embodiment of the present invention;

[0022] Figure 3 This is a structural schematic diagram of the photovoltaic cleaning vehicle from another perspective, provided by an embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of a hydraulic system.

[0024] In the picture:

[0025] 1. Vehicle body; 2. Cleaning mechanism; 21. Cleaning arm; 211. Bending boom; 212. Swing arm; 213. Forearm; 22. Adjustment assembly; 221. Adjustment drive source; 23. Cleaning roller; 231. Mounting base; 232. Roller; 3. Rotation mechanism; 4. Swing cylinder; 5. First drive cylinder; 6. Second drive cylinder;

[0026] 10. Atmospheric pressure cylinder; 20. Filter screen; 30. Hydraulic pump; 40. Check valve; 50. Condenser; 60. Relief valve; 70. Four-way solenoid valve; 80. Hydraulic control check valve; 90. Dual-control throttle valve; 101. Level gauge; 102. First unloading valve; 103. Second unloading valve; 104. Roller brush hydraulic motor

[0027] 100. Photovoltaic panels; 200. Ground-mounted. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are merely used for descriptive distinction and have no special meaning.

[0032] like Figures 1 to 3 As shown, this embodiment provides a photovoltaic cleaning vehicle, which includes a vehicle body 1 and a cleaning mechanism 2. The cleaning mechanism 2 is mounted on the vehicle body 1 via a rotary mechanism 3. For example, the rotary mechanism 3 is mounted at the front end of the vehicle body 1. The rotary mechanism 3 is a rotary reducer or a turntable reducer. Since it is a relatively mature existing technology, it will not be described in detail here.

[0033] Specifically, the cleaning mechanism 2 includes a cleaning arm 21 and a cleaning roller brush 23. The cleaning arm 21 is mounted on the rotary mechanism 3, and the cleaning roller brush 23 is mounted on the end of the cleaning arm 21. The rotary mechanism 3 drives the cleaning arm 21 to rotate 360° on a plane parallel to the ground 200 to adapt to various working environments and conditions. The cleaning roller brush 23 is used to clean the photovoltaic panel 100 to be cleaned.

[0034] More specifically, the cleaning arm 21 includes a curved upper arm 211, a swing arm 212, and a forearm 213. One end of the curved upper arm 211 is rotatably mounted on the rotary mechanism 3 about a first axis, which is perpendicular to the rotation axis of the rotary mechanism 3, meaning that the upper arm can pitch relative to the ground 200. One end of the swing arm 212 is rotatably connected to the other end of the curved upper arm 211 about a second axis, which is perpendicular to the first axis, meaning that the swing arm 212 can swing left and right relative to the curved upper arm 211. One end of the forearm 213 is rotatably connected to the other end of the swing arm 212 about a third axis, which is perpendicular to the length direction of the swing arm 212, meaning that the forearm 213 can pitch relative to the swing arm 212. The cleaning roller brush 23 is rotatably mounted on the other end of the forearm 213. Before starting the operation, by rotating the swing arm 212 and the forearm 213, the cleaning roller brush 23 is made to be flat against the photovoltaic panel 100, and the axis of the cleaning roller brush 23 is at a predetermined angle to the length of the photovoltaic panel 100. That is, as the photovoltaic cleaning vehicle moves, the cleaning roller brush 23 can clean the photovoltaic panel 100 in different directions.

[0035] More specifically, the cleaning roller brush 23 includes a roller 232 and a mounting base 231. The mounting base 231 is rotatably mounted on the end of the forearm 213 away from the swing arm 212 about a fourth axis. That is, the mounting base 231 can tilt relative to the forearm 213, thereby adjusting the relative position of the cleaning roller brush 23 and the photovoltaic panel 100 within a small range. The roller 232 is rotatably mounted on the mounting base 231 with its central axis as the pivot. The fourth axis is parallel to the third axis. The rotation of the roller 232 cleans the photovoltaic panel 100. The roller 232 is driven to rotate by the roller brush hydraulic motor 104.

[0036] The cleaning roller brush 23 may also include a water supply assembly to provide cleaning fluid to the roller 232, thereby improving the cleaning effect. For example, the water supply assembly includes a water supply pipe and nozzles. The water supply pipe extends along the axial direction of the roller 232, and multiple nozzles are spaced apart on the water supply pipe to spray water outward.

[0037] Preferably, a swing cylinder 4 is connected between the cleaning roller brush 23 and the forearm 213, and the swing cylinder 4 drives the cleaning roller brush 23 to rotate relative to the forearm 213. The swing cylinder 4 can be a manual hydraulic cylinder or an electric hydraulic cylinder.

[0038] Preferably, a first drive cylinder 5 is connected between the forearm 213 and the swing arm 212, and the forearm 213 is driven to rotate relative to the swing arm 212 by the first drive cylinder 5. The first drive cylinder 5 can be a manual cylinder or an electric hydraulic cylinder.

[0039] Preferably, a second drive cylinder 6 is connected between the swing arm 212 and the bending boom 211, and the second drive cylinder 6 drives the swing arm 212 to rotate relative to the bending boom 211. The second drive cylinder 6 can be a manual cylinder or an electric hydraulic cylinder.

[0040] Furthermore, the cleaning mechanism 2 also includes an adjustment component 22, which includes an adjustment drive source 221 and an angle detector. The adjustment drive source 221 is electrically connected to the angle detector, which is mounted on the rotary mechanism 3 and is used to detect the angle between the rotary surface of the rotary mechanism 3 and the ground 200. For example, when the photovoltaic cleaning vehicle is on flat ground, the rotary surface of the rotary mechanism 3 is parallel to the ground 200. The adjustment drive source 221 drives the connected curved arm 211 to rotate. The angle detector can be selected as a tilt sensor. As the photovoltaic cleaning vehicle moves, the cleaning roller brush 23 cleans the photovoltaic panel 100. During the movement, when encountering uneven road surfaces, the angle detector can detect the overall tilt of the cleaning mechanism 2 in real time. The adjustment drive source 221 drives the curved arm 211 to rotate according to the detection, so that the cleaning roller brush 23 can always maintain flat contact with the photovoltaic panel 100, reacting promptly and avoiding excessive pressure on the photovoltaic panel 100, which could cause damage, or the brush moving away from the photovoltaic panel 100, resulting in incomplete cleaning. This photovoltaic cleaning vehicle is suitable for bumpy and uneven roads, has a good cleaning effect on photovoltaic panels 100, and has a high level of operational safety.

[0041] Preferably, the adjustment drive source 221 is a hydraulic cylinder, one end of which is rotatably connected to the rotary mechanism 3, and the other end is hinged to the curved boom 211 via a hinge seat. By extending and retracting the hydraulic cylinder, the curved boom 211 is tilted relative to the rotary surface of the rotary mechanism 3, thereby realizing real-time adjustment of the distance between the cleaning roller brush 23 and the photovoltaic panel 100 according to the uneven road surface, ensuring both cleaning effect and operational safety.

[0042] Furthermore, the curved boom 211 includes a first boom segment and a second boom segment. The length directions of the first boom segment and the second boom segment are set at an angle, preferably an obtuse angle. One end of the first boom segment is rotatably mounted on the rotary mechanism 3, and one end of the second boom segment is rotatably connected to the swing arm 212. One end of the adjusting drive source 221 is hinged to the first boom segment through a hinge seat. When the photovoltaic cleaning vehicle arrives at the work site and needs to clean a row of photovoltaic panels 100, the photovoltaic panels 100 are located on one side of the photovoltaic cleaning vehicle. The rotary mechanism 3 drives the curved boom 211 to rotate so that the cleaning roller brush 23 can be smoothly aligned with the photovoltaic panels 100 to be cleaned.

[0043] Preferably, an arc-shaped arm segment connects the first arm segment and the second arm segment. The arc-shaped arm segment makes the overall structural strength of the curved boom 211 better and its load-bearing capacity stronger.

[0044] like Figure 4 As shown, in this embodiment, the photovoltaic cleaning vehicle also includes a hydraulic system, which includes a normal pressure cylinder 10. The aforementioned swing cylinder 4, first drive cylinder 5, second drive cylinder 6, hydraulic motor of rotary mechanism 3, roller brush hydraulic motor 104, and adjustment drive source 221 are respectively connected to the normal pressure cylinder 10 through oil supply pipelines. Specifically, the oil supply pipeline includes a main oil outlet pipe, a main oil return pipe, and multiple branch oil pipes. The main oil outlet pipe and the main oil return pipe are respectively connected to the oil outlet and oil return port of the atmospheric pressure cylinder 10. The main oil outlet pipe is sequentially equipped with a filter screen 20, a hydraulic pump 30, and a check valve 40. The hydraulic pump 30 is driven by a motor. The main oil return pipe is equipped with a condenser 50. An overflow valve 60 is connected between the main oil return pipe and the main oil outlet pipe. Multiple branch oil pipes are connected in parallel between the main oil return pipe and the main oil outlet pipe. The multiple branch oil pipes are respectively connected one-to-one to the aforementioned swing cylinder 4, the first drive cylinder 5, the second drive cylinder 6, the hydraulic motor of the rotary mechanism 3, the hydraulic motor that drives the roller 232 to rotate, and the regulating drive source 221. Each branch oil pipe is equipped with a three-position four-way solenoid valve 70, a pressure reducing valve, a hydraulically controlled check valve 80, and a double-control throttle valve 90. Among them, the four-way solenoid valve 70, pressure reducing valve, hydraulic check valve 80 and dual-control throttle valve 90 are used to control the on / off state and flow rate in the oil distribution pipe. Since they are relatively mature existing technologies, they will not be described in detail here.

[0045] Preferably, a level gauge 101 is provided on the atmospheric pressure cylinder 10 to detect the hydraulic oil level in the atmospheric pressure cylinder so that hydraulic oil can be replenished in a timely manner.

[0046] Preferably, the oil distribution pipe corresponding to the swing cylinder 4 is the first oil supply line, and the oil distribution pipe corresponding to the first drive cylinder 5 is the second oil supply line. The first oil supply line and the second oil supply line are respectively connected to the first unloading valve 102 and the second unloading valve 103. When the hydraulic system is supplying oil normally, by setting the first unloading valve 102 and the second unloading valve 103, the swing cylinder 4 and the first drive cylinder 5 can be completely unloaded, so that the cleaning roller brush 23 and the small arm 213 can adapt to the undulation of the photovoltaic panel 100 during the operation, ensuring the cleaning effect while ensuring the safety of the operation.

[0047] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A photovoltaic cleaning vehicle, characterized in that, The system includes a vehicle body and a cleaning mechanism. The cleaning mechanism is mounted on the vehicle body via a rotary mechanism and includes a cleaning arm, an adjustment assembly, and a cleaning roller. The cleaning arm includes a curved upper arm, a swing arm, and a lower arm. One end of the curved upper arm is rotatably mounted on the rotary mechanism about a first axis, which is perpendicular to the rotation axis of the rotary mechanism. One end of the swing arm is rotatably connected to the other end of the curved upper arm about a second axis, which is perpendicular to the first axis. One end of the lower arm is rotatably connected to the other end of the swing arm about a third axis, which is perpendicular to the length direction of the swing arm. The cleaning roller brush is rotatably mounted on the other end of the lower arm. The adjustment assembly includes an adjustment drive source and an angle detector. The adjustment drive source is electrically connected to the angle detector. The angle detector is disposed on the slewing mechanism and is used to detect the angle between the slewing surface of the slewing mechanism and the ground. The adjustment drive source is connected to the curved boom and is used to drive the curved boom to rotate.

2. The photovoltaic cleaning vehicle according to claim 1, characterized in that, The adjustment drive source is a hydraulic cylinder, one end of which is rotatably connected to the rotary mechanism, and the other end is hinged to the curved boom through a hinge seat.

3. The photovoltaic cleaning vehicle according to claim 1, characterized in that, The curved boom includes a first boom segment and a second boom segment. The length directions of the first boom segment and the second boom segment are set at an angle. One end of the first boom segment is rotatably mounted on the rotary mechanism, and one end of the second boom segment is rotatably connected to the swing arm.

4. The photovoltaic cleaning vehicle according to claim 3, characterized in that, An arc-shaped arm segment connects the first arm segment and the second arm segment.

5. The photovoltaic cleaning vehicle according to claim 1, characterized in that, The cleaning roller brush includes a roller and a mounting base. The mounting base is rotatably mounted on the end of the forearm away from the swing arm about a fourth axis. The roller is rotatably mounted on the mounting base with its central axis as the pivot. The fourth axis is parallel to the third axis.

6. The photovoltaic cleaning vehicle according to claim 1, characterized in that, A swing cylinder is connected between the cleaning roller and the forearm.

7. The photovoltaic cleaning vehicle according to claim 6, characterized in that, It also includes a hydraulic system, which is connected to the swing cylinder through a first oil supply line, and a first unloading valve is connected to the first oil supply line.

8. The photovoltaic cleaning vehicle according to claim 1, characterized in that, A first drive cylinder is connected between the forearm and the swing arm.

9. The photovoltaic cleaning vehicle according to claim 8, characterized in that, It also includes a hydraulic system, which is connected to the first drive cylinder through a second oil supply line, and a second unloading valve is connected to the second oil supply line.

10. The photovoltaic cleaning vehicle according to any one of claims 1-9, characterized in that, A second drive cylinder is connected between the swing arm and the bending arm.

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