An adaptive mechanism for the roller brush of a photovoltaic cleaning vehicle

Abstract

This utility model relates to the field of photovoltaic cleaning technology, and in particular to an adaptive mechanism for a roller brush of a photovoltaic cleaning vehicle. It includes a roller brush body and a rotating bracket above it, as well as support frames on both sides of the top of the rotating bracket. A spacing adjustment mechanism controls the height of both ends of the roller brush body by adjusting the support frames. An upper folding arm body is hinged to the middle of the top of the rotating bracket, a corner folding arm body is hinged to the rear end of the upper folding arm body, and a lower folding arm body is hinged to the rear end of the corner folding arm body. The upper and lower folding arm bodies control the bending angle of the roller brush body from one direction, and the corner folding arm body controls the bending angle from another direction, ensuring that the roller brush body always remains parallel to the photovoltaic panel. This utility model, through multi-angle adaptive adjustment, precisely controls the roller brush posture, ensuring that the roller brush maintains a constant distance from the photovoltaic module and performs cleaning parallel to the photovoltaic module, thereby enhancing the practical value of the photovoltaic cleaning vehicle.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic cleaning technology, and in particular to an adaptive mechanism for the roller brush of a photovoltaic cleaning vehicle. Background Technology

[0002] Photovoltaic power generation, as a clean energy technology, has been widely used in recent years. However, during long-term use, photovoltaic panels accumulate pollutants such as dust and bird droppings, which seriously affect power generation efficiency. Studies have shown that dust cover can reduce the power generation efficiency of photovoltaic panels by 15% to 25%. Therefore, regular cleaning of photovoltaic panels is crucial for maintaining their efficient operation.

[0003] Existing photovoltaic cleaning vehicles generally use hydraulic motors to drive the roller brushes, and the two ends of the roller brushes are fixedly installed. When the cleaning vehicle passes through deserts, Gobi, mud pits and other road sections, it cannot make adaptive adjustments. The bumps caused by the road surface often cause the roller brush to damage the photovoltaic modules, resulting in certain losses.

[0004] Therefore, to address the issue that existing photovoltaic cleaning vehicles may damage photovoltaic modules due to road bumps, an adaptive mechanism for the photovoltaic cleaning vehicle's brush can be designed. This mechanism can precisely control the brush's posture through multi-angle adaptive adjustment, ensuring that the brush maintains a constant distance from the photovoltaic module and performs cleaning parallel to the module, thereby effectively enhancing the practical value of the photovoltaic cleaning vehicle. Utility Model Content

[0005] To overcome the problem that most photovoltaic cleaning vehicle roller brushes cannot adaptively adjust when the cleaning vehicle passes through deserts, Gobi, muddy pits and other road sections, and that the bumps caused by the road surface often cause the roller brush to damage the photovoltaic modules and cause certain losses, this utility model is proposed.

[0006] The technical solution of this utility model is as follows: an adaptive mechanism for a roller brush of a photovoltaic cleaning vehicle, including a roller brush body and a rotating bracket above it, and a support frame set on both sides of the top of the rotating bracket. The height of both ends of the roller brush body is adjusted by the support frame through a spacing adjustment mechanism. An upper folding arm body is hinged to the middle of the top of the rotating bracket, a corner folding arm body is hinged to the rear end of the upper folding arm body, and a lower folding arm body is hinged to the rear end of the corner folding arm body. The bending angle of the roller brush body is controlled from one direction by the upper folding arm body and the lower folding arm body, and the bending angle of the roller brush body is controlled from another direction by the corner folding arm body.

[0007] Preferably, a support frame is used to rotatably connect the two ends of the roller brush body, a rotary bracket is used to fix the position of the roller brush body, the rotation of the folding arm body controls the upper folding arm body to extend out of the roller brush body, the rotation of the upper and lower folding arm bodies controls the tilt angle between the roller brush body and the photovoltaic panel, and the spacing adjustment mechanism controls the height of the two ends of the roller brush body to adjust the support frame, thereby achieving precise control of the roller brush posture, so that the roller brush and the photovoltaic module always maintain a constant distance, and the cleaning treatment is performed parallel to the photovoltaic module, thus enhancing the practical value of the photovoltaic cleaning vehicle.

[0008] Preferably, a lidar sensor is installed on the outer side of the upper folding arm body. The lidar sensor scans the positional relationship between the roller brush body and the photovoltaic module in 360°, and the scanned data signals are analyzed and processed by the point cloud algorithm and fed back to each electric cylinder, so that the roller brush body is always parallel to the photovoltaic module.

[0009] Preferably, the spacing adjustment mechanism includes an adjusting electric cylinder, a slider connecting beam, a linear guide rail, and a swing arm. The adjusting electric cylinders are symmetrically arranged on both sides of the top of the rotary support. The adjusting electric cylinders are electrically connected to the laser radar sensor. The slider connecting beam is arranged on the outer telescopic end of the adjusting electric cylinder. The front end of the slider connecting beam is rotatably connected to the swing arm. The bottom end of the swing arm is hinged to the support frame. Two sets of linear guide rails are symmetrically arranged on both sides of the slider connecting beam. The two ends of the slider connecting beam slide along the linear guide rails.

[0010] Preferably, the slewing bracket is hinged to the front end of the upper folding arm body via a slewing bearing seat. An angle electric cylinder is hinged to the bottom outer side of the upper folding arm body. The outer telescopic end of the angle electric cylinder is hinged to one side of the top of the slewing bracket. The angle electric cylinder is electrically connected to the lidar sensor.

[0011] Preferably, a slewing support is hinged to the bottom end of the lower folding arm body, and a lower folding arm electric cylinder is hinged to the slewing support. The outer telescopic end of the lower folding arm electric cylinder is hinged to the outer side of the lower folding arm body, and the lower folding arm electric cylinder is electrically connected to the lidar sensor.

[0012] Preferably, a corner folding arm electric cylinder is hinged to the outer side of the lower folding arm body, and the outer telescopic end of the corner folding arm electric cylinder is hinged to the outer side of the corner folding arm body. An upper folding arm electric cylinder is hinged to the outer side of the upper folding arm body, and the outer telescopic end of the upper folding arm electric cylinder is hinged to the outer side of the corner folding arm body. The corner folding arm electric cylinder and the upper folding arm electric cylinder are electrically connected to the lidar sensor.

[0013] Preferably, a hydraulic pump is installed on the outer side of one of the support frames, and the output end of the hydraulic pump is connected to the drive shaft of the roller brush body, so as to drive the roller brush body to rotate.

[0014] The beneficial effects of this utility model are:

[0015] During cleaning, the rotating bracket is used to fix the position of the roller brush body. The rotating folding arm body is rotated to control the upper folding arm body to extend the roller brush body. The upper and lower folding arm bodies are rotated to control the tilt angle between the roller brush body and the photovoltaic panel. The height of both ends of the roller brush body is adjusted by the support frame to ensure that the distance between the two ends of the roller brush body and the photovoltaic panel is always the same. The roller brush body rotates around the support frame to clean the photovoltaic panel. This solves the problem that most photovoltaic cleaning vehicle roller brushes cannot make adaptive adjustments when the cleaning vehicle passes through desert, Gobi, mud pits and other road sections. The bumps caused by the road surface often cause the roller brush to damage the photovoltaic module and cause certain losses. This enhances the practical value of photovoltaic cleaning vehicles. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the adaptive mechanism of the roller brush of a photovoltaic cleaning vehicle according to this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the roller brush body of the adaptive mechanism of the roller brush of a photovoltaic cleaning vehicle according to this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the folding arm main body of the adaptive mechanism of the roller brush of a photovoltaic cleaning vehicle according to this utility model.

[0019] Figure 4 This invention relates to an adaptive mechanism for the roller brush of a photovoltaic cleaning vehicle. Figure 2 A magnified three-dimensional diagram of a circle.

[0020] Explanation of reference numerals in the attached drawings: 1. Main body of the roller brush; 101. Support frame; 102. Hydraulic pump; 2. Rotary bracket; 201. Rotary bearing seat; 202. Angle electric cylinder; 3. Adjusting electric cylinder; 301. Slider connecting beam; 302. Linear guide rail; 303. Swing arm; 4. Main body of the upper folding arm; 401. Upper folding arm electric cylinder; 5. Main body of the corner folding arm; 501. Corner folding arm electric cylinder; 6. Main body of the lower folding arm; 601. Rotary support seat; 602. Lower folding arm electric cylinder; 7. LiDAR sensor. Detailed Implementation

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

[0022] Please see Figure 1This utility model provides an embodiment of an adaptive mechanism for a photovoltaic cleaning vehicle roller brush, including a roller brush body 1 and a rotating bracket 2 above it, and a support frame 101 disposed on both sides of the top of the rotating bracket 2. The height of both ends of the roller brush body 1 is adjusted by the support frame 101 controlled by the spacing adjustment mechanism. An upper folding arm body 4 is hinged to the middle of the top of the rotating bracket 2, a corner folding arm body 5 is hinged to the rear end of the upper folding arm body 4, and a lower folding arm body 6 is hinged to the rear end of the corner folding arm body 5. The bending angle of the roller brush body 1 is controlled from one direction by the upper folding arm body 4 and the lower folding arm body 6, and the bending angle of the roller brush body 1 is controlled from another direction by the corner folding arm body 5.

[0023] Please see Figure 3 and Figure 4 In this embodiment, a lidar sensor 7 is provided on the outer side of the upper folding arm body 4. The lidar sensor 7 scans the shape, size and distance of surrounding objects in real time, thereby scanning the positional relationship between the roller brush body 1 and the photovoltaic module in 360°. The scanned data signals are analyzed and processed by the point cloud algorithm and fed back to each electric cylinder, so that the roller brush body 1 is always parallel to the photovoltaic module. This enables the real-time acquisition of the positional relationship between the roller brush body 1 and the photovoltaic panel, and the roller brush body 1 is adjusted to the optimal cleaning posture in a timely manner based on the acquired data.

[0024] The spacing adjustment mechanism includes an adjusting electric cylinder 3, a slider connecting beam 301, linear guide rails 302, and a swing arm 303. Adjusting electric cylinders 3 are symmetrically arranged on both sides of the top of the rotary support 2. The adjusting electric cylinders 3 are electrically connected to the laser radar sensor 7. A slider connecting beam 301 is provided at the outer telescopic end of the adjusting electric cylinder 3. The front end of the slider connecting beam 301 is rotatably connected to the swing arm 303. The bottom end of the swing arm 303 is hinged to the support frame 101. Two sets of linear guide rails 302 are symmetrically arranged on both sides of the slider connecting beam 301. The two ends of the slider connecting beam 301 slide along the linear guide rails 302. The laser radar sensor 7 scans the main body of the roller brush. The distance data between the two ends of the roller brush body 1 and the photovoltaic panel is processed and sent to the adjusting electric cylinder 3. When the distance between the two ends of the roller brush body 1 and the photovoltaic panel is inconsistent, the corresponding adjusting electric cylinder 3 drives the slider connecting beam 301 to move along the linear guide rail 302. The linear guide rail 302 provides an adaptive axial movement path for the two ends of the roller brush body 1, thereby pushing the swing arm 303 to move left and right through the slider connecting beam 301. The moving swing arm 303 drives the support frame 101 to extend and retract in the height direction, thereby controlling the distance between one end of the corresponding roller brush body 1 and the photovoltaic panel, realizing adaptive adjustment, and ensuring that the roller brush body 1 and the photovoltaic panel are always parallel.

[0025] Please see Figure 1 and Figure 2In this embodiment, the rotary support 2 is hinged to the front end of the upper folding arm body 4 via the rotary bearing seat 201. An angle cylinder 202 is hinged to the bottom outer side of the upper folding arm body 4. The outer telescopic end of the angle cylinder 202 is hinged to one side of the top of the rotary support 2. The angle cylinder 202 is electrically connected to the lidar sensor 7. The rotary bearing seat 201 ensures that the rotary support 2 and the upper folding arm body 4 are stably hinged. The angle cylinder 202 is controlled according to the scanning data feedback from the lidar sensor 7. The angle cylinder 202 is used to control the angle of the rotary support 2 relative to the upper folding arm body 4, ensuring that the roller brush body 1 is placed parallel to the photovoltaic panel.

[0026] Please see Figure 3 In this embodiment, a rotary support 601 is hinged to the bottom end of the lower folding arm body 6, and a lower folding arm electric cylinder 602 is hinged to the rotary support 601. The outer telescopic end of the lower folding arm electric cylinder 602 is hinged to the outer side of the lower folding arm body 6. The lower folding arm electric cylinder 602 is electrically connected to the lidar sensor 7. The lower folding arm electric cylinder 602 is hinged to the rotary support 601. The lower folding arm electric cylinder 602 is controlled according to the scanning data feedback from the lidar sensor 7. The bending angle between the lower folding arm body 6 and the rotary support 601 is controlled by the lower folding arm electric cylinder 602.

[0027] A corner folding arm cylinder 501 is hinged to the outer side of the lower folding arm body 6. The outer telescopic end of the corner folding arm cylinder 501 is hinged to the outer side of the corner folding arm body 5. An upper folding arm cylinder 401 is hinged to the outer side of the upper folding arm body 4. The outer telescopic end of the upper folding arm cylinder 401 is hinged to the outer side of the corner folding arm body 5. The corner folding arm cylinder 501 and the upper folding arm cylinder 401 are electrically connected to the lidar sensor 7. The corner folding arm cylinder 501 and the upper folding arm cylinder 401 are controlled by feedback from the lidar sensor 7. The corner folding arm cylinder 501 controls the bending angle between the corner folding arm body 5 and the lower folding arm body 6, thereby retracting the roller brush body 1 to one side and reducing the storage space of the roller brush body 1. The upper folding arm cylinder 401 controls the bending angle between the upper folding arm body 4 and the corner folding arm body 5, thereby flexibly adjusting the placement position and angle of the roller brush body 1.

[0028] Please see Figure 4 In this embodiment, a hydraulic pump 102 is provided on the outer side of one of the support frames 101. The output end of the hydraulic pump 102 is connected to the drive shaft of the roller brush body 1. The roller brush body 1 is rotated by the hydraulic pump 102 to perform photovoltaic panel cleaning operation.

[0029] Before cleaning, the positional relationship between the roller brush body 1 and the photovoltaic module is scanned 360° by the lidar sensor 7, and the scanned data signals are analyzed and processed by the point cloud algorithm and fed back to each electric cylinder. After receiving the control signal, the lower folding arm electric cylinder 602 on the rotary support 601 extends and retracts to adjust the placement angle of the lower folding arm body 6.

[0030] At the same time, the corner folding arm electric cylinder 501 extends and retracts to control the rotation of the corner folding arm body 5, so that the corner folding arm body 5 is aligned with the lower folding arm body 6, and the roller brush body 1 is extended. At this time, the upper folding arm electric cylinder 401 controls the upper folding arm body 4 to bend, and cooperates with the angle electric cylinder 202 to drive the rotary bracket 2 to rotate around the rotary bearing seat 201, control the roller brush body 1 to contact the photovoltaic panel in parallel, and control the contact distance within the range of 50-100mm.

[0031] During cleaning, the hydraulic pump 102 drives the roller brush body 1 to rotate, and the moving cleaning vehicle makes the roller brush body 1 clean the photovoltaic panel. During the movement, when encountering uneven road surfaces, the roller brush body 1 will swing. When the distance between the two ends of the roller brush body 1 obtained by the laser radar sensor 7 is inconsistent, the adjusting electric cylinder 3 will drive the slider connecting beam 301 to move along the linear guide rail 302. The moving slider connecting beam 301 pushes the swing arm 303 to move left and right. The moving swing arm 303 drives the support frame 101 to extend and retract in the height direction, thereby controlling the distance between one end of the corresponding roller brush body 1 and the photovoltaic panel. Among them, all electric cylinders also have their own thrust sensing. At the same time as the laser radar sensor 7 provides a signal, the electric cylinder also provides a signal simultaneously. Through the comparison and processing of the two signals, more reliable adaptive adjustment is achieved to ensure that the roller brush body 1 and the photovoltaic panel are always parallel.

[0032] Through the above steps, the support frame 101 is rotatably connected to both ends of the roller brush body 1, the position of the roller brush body 1 is fixed by the rotary bracket 2, the rotating folding arm body 5 is rotated to control the upper folding arm body 4 to extend out of the roller brush body 1, the tilt angle between the roller brush body 1 and the photovoltaic panel is controlled by the rotation of the upper folding arm body 4 and the lower folding arm body 6, and the height of both ends of the roller brush body 1 is adjusted by the spacing adjustment mechanism, thereby precisely controlling the roller brush posture so that the roller brush and the photovoltaic module always maintain a constant distance and are parallel to the photovoltaic module for cleaning.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An adaptive mechanism for a roller brush of a photovoltaic cleaning vehicle, comprising a roller brush body (1) and a rotating support (2) above it, characterized in that: It also includes support frames (101) set on both sides of the top of the rotary support (2). The height of the two ends of the roller brush body (1) is adjusted by the support frames (101) controlled by the spacing adjustment mechanism. The upper folding arm body (4) is hinged to the middle of the top of the rotary support (2). The rear end of the upper folding arm body (4) is hinged to the corner folding arm body (5). The rear end of the corner folding arm body (5) is hinged to the lower folding arm body (6). The bending angle of the roller brush body (1) is controlled from one direction by the upper folding arm body (4) and the lower folding arm body (6). The bending angle of the roller brush body (1) is controlled from another direction by the corner folding arm body (5).

2. The adaptive mechanism of the roller brush of a photovoltaic cleaning vehicle according to claim 1, characterized in that: A lidar sensor (7) is provided on the outside of the upper folding arm body (4). The lidar sensor (7) scans the positional relationship between the roller brush body (1) and the photovoltaic module in 360°, and the scanned data signal is analyzed and processed by the point cloud algorithm and fed back to each electric cylinder, so that the roller brush body (1) is always parallel to the photovoltaic module.

3. The adaptive mechanism of the roller brush of a photovoltaic cleaning vehicle according to claim 2, characterized in that: The spacing adjustment mechanism includes an adjusting electric cylinder (3), a slider connecting beam (301), a linear guide rail (302), and a swing arm (303). The adjusting electric cylinder (3) is symmetrically arranged on both sides of the top of the rotary support (2). The adjusting electric cylinder (3) is electrically connected to the laser radar sensor (7). The slider connecting beam (301) is arranged on the outer telescopic end of the adjusting electric cylinder (3). The swing arm (303) is rotatably connected to the front end of the slider connecting beam (301). The bottom end of the swing arm (303) is hinged to the support frame (101). Two sets of linear guide rails (302) are symmetrically arranged on both sides of the slider connecting beam (301). The two ends of the slider connecting beam (301) slide along the linear guide rails (302).

4. The adaptive mechanism of the roller brush of a photovoltaic cleaning vehicle according to claim 2, characterized in that: The slewing bracket (2) is hinged to the front end of the upper folding arm body (4) via the slewing bearing seat (201). An angle electric cylinder (202) is hinged to the bottom outer side of the upper folding arm body (4). The outer telescopic end of the angle electric cylinder (202) is hinged to one side of the top of the slewing bracket (2). The angle electric cylinder (202) is electrically connected to the laser radar sensor (7).

5. The adaptive mechanism of the roller brush of a photovoltaic cleaning vehicle according to claim 2, characterized in that: The bottom end of the lower folding arm body (6) is hinged to a slewing support seat (601), and the slewing support seat (601) is hinged to a lower folding arm electric cylinder (602). The outer telescopic end of the lower folding arm electric cylinder (602) is hinged to the outer side of the lower folding arm body (6), and the lower folding arm electric cylinder (602) is electrically connected to the laser radar sensor (7).

6. The adaptive mechanism of the roller brush of a photovoltaic cleaning vehicle according to claim 2, characterized in that: A corner folding arm electric cylinder (501) is hinged to the outside of the lower folding arm body (6). The outer telescopic end of the corner folding arm electric cylinder (501) is hinged to the outside of the corner folding arm body (5). An upper folding arm electric cylinder (401) is hinged to the outside of the upper folding arm body (4). The outer telescopic end of the upper folding arm electric cylinder (401) is hinged to the outside of the corner folding arm body (5). The corner folding arm electric cylinder (501) and the upper folding arm electric cylinder (401) are electrically connected to the laser radar sensor (7).

7. The adaptive mechanism of the roller brush of a photovoltaic cleaning vehicle according to claim 1, characterized in that: A hydraulic pump (102) is installed on the outside of one of the support frames (101). The output end of the hydraulic pump (102) is connected to the drive shaft of the roller brush body (1). The roller brush body (1) is rotated by means of the hydraulic pump (102).

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