Photovoltaic power station sweeper
By using a cleaning drive mechanism to achieve gear reduction and rack and pinion coordination in the photovoltaic cleaning machine, the problems of complex structure and poor coordination of existing photovoltaic cleaning machines are solved, thus improving the cleaning effect.
Patent Information
- Application Number
- CN202520267744.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Existing photovoltaic cleaning robots have poor cleaning performance due to their complex structure and poor coordination caused by the use of two sets of drive mechanisms.
A cleaning drive mechanism is adopted, which uses a gear reduction set and a rack to realize the rotation and decelerated linear movement of the cleaning roller brush, simplifying the mechanical structure and improving coordination.
The mechanical structure of the photovoltaic sweeper has been simplified, the number of electrical components has been reduced, the coordination of the rotation and linear movement of the sweeping rollers has been improved, and the sweeping effect has been enhanced.
Smart Images
Figure CN223744663U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of photovoltaic power station technology, and specifically relates to a photovoltaic power station cleaning machine. Background Technology
[0002] A photovoltaic power station is a power generation system that utilizes solar energy and consists of special materials such as crystalline silicon panels and electronic components such as inverters. It is connected to the power grid and transmits electricity to the grid.
[0003] Since photovoltaic (PV) power plants have their arrays outdoors, to reduce the impact of dust and dirt on the power generation efficiency, most companies in the industry use PV cleaning robots to regularly clean the arrays. Because the cleaning rollers need to rotate and move linearly during cleaning, current PV cleaning robots employ two sets of drive mechanisms, resulting in complex structures and poor coordination. Utility Model Content
[0004] This utility model provides a photovoltaic power station cleaning machine, which aims to realize the rotation and translation of the cleaning roller brush through a set of drive mechanisms, simplify the overall structure of the machine and improve the cleaning effect.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a photovoltaic power station cleaning machine is provided, comprising: a photovoltaic mounting frame, multiple photovoltaic panels, a cleaning drive mechanism, and a cleaning roller brush. The photovoltaic mounting frame has rectangular unit frames arranged in an array; multiple photovoltaic panels are fixed one-to-one on the rectangular unit frames to form a rectangular photovoltaic array on the photovoltaic mounting frame; the cleaning drive mechanism is mounted on the photovoltaic mounting frame; the axis of the cleaning roller brush is parallel to the short side of the rectangular photovoltaic array, and the length of the cleaning roller brush is at least consistent with the length of the short side of the rectangular photovoltaic array; the cleaning roller brush moves reciprocally in a straight line along the long side of the rectangular photovoltaic array under the drive of the cleaning drive mechanism, sweeping the surface of the rectangular photovoltaic array in one pass. The cleaning drive mechanism includes a drive motor, a main gear reduction group, a driven gear reduction group, and two racks. The two racks are respectively fixed on the two opposite long sides of the photovoltaic mounting frame. The main gear reduction group and the driven gear reduction group are respectively installed at both ends of the cleaning roller brush and mesh with the racks. The drive motor is installed at the end of the cleaning roller brush near the main gear reduction group and drives the cleaning roller brush to rotate. At the same time, the meshing of the main gear reduction group, the driven gear reduction group, and the racks realizes the decelerated linear movement of the cleaning roller brush.
[0006] In one possible implementation, the main gear reduction assembly includes a drive gear, a first main reduction gear, a main coaxial gear, and a second main reduction gear. The drive gear is mounted on the sweeping roller brush. The first main reduction gear meshes with the drive gear. The main coaxial gear is coaxially mounted with the first main reduction gear. The second main reduction gear meshes with the main coaxial gear and with the rack. The first main reduction gear has a greater number of teeth than the drive gear, the main coaxial gear has a smaller number of teeth than the first main reduction gear, and the second main reduction gear has a greater number of teeth than the main coaxial gear, thus achieving deceleration of the sweeping roller brush. The main gear reduction assembly also includes a main reduction gearbox. One end of the sweeping roller brush rotates through the main reduction gearbox, and the drive gear is located inside the main reduction gearbox. The first main reduction gear and the main coaxial gear are mounted in the main reduction gearbox via a first main shaft, and the second main reduction gear is mounted in the main reduction gearbox via a second main shaft.
[0007] The structure of the driven gear reduction assembly is the same as that of the main gear reduction assembly.
[0008] In one possible implementation, the number of teeth on the driving gear is the same as the number of teeth on the main coaxial gear, and the number of teeth on the first main reduction gear is the same as the number of teeth on the second main reduction gear.
[0009] In one possible implementation, the main gearbox includes at least a main mounting base plate and a main mounting side plate parallel to the main mounting base plate, and the drive motor is mounted on the main mounting base plate; the drive motor is located on the side of the main mounting base plate opposite to the main gear reduction assembly.
[0010] In one possible implementation, the main mounting substrate has an extension that extends downward and fits against the outer side of the photovoltaic mounting frame, and the inner side of the extension is provided with a guide structure that cooperates with the outer side of the photovoltaic mounting frame.
[0011] In one possible implementation, the guide structure includes a guide groove disposed on the outer side of the photovoltaic mounting frame and a slider disposed on the extension, the slider being slidably engaged within the guide groove.
[0012] In one feasible approach, anti-detachment limiting structures are provided at both ends of the long side of the photovoltaic mounting frame.
[0013] In one possible implementation, the anti-detachment limiting structure includes anti-detachment limiting blocks or limit switches disposed at both ends of the long side of the photovoltaic mounting frame.
[0014] In one possible implementation, the sweeping roller brush includes a sweeping roller shaft and a spiral brush disposed on the sweeping roller shaft.
[0015] Compared with the prior art, the photovoltaic power station cleaning machine provided by this utility model has the following advantages: while driving the cleaning roller brush to rotate using a set of cleaning drive mechanisms, the cleaning roller brush can be decelerated and moved linearly by the gear reduction group and rack installed on the cleaning roller brush. The mechanical structure of the whole machine is greatly simplified, the use of electrical components is reduced, the coordination of the rotation and linear movement of the cleaning roller brush is improved, and the cleaning effect is improved. Attached Figure Description
[0016] Figure 1 Schematic diagram of the structure of the photovoltaic power station cleaning machine provided in this embodiment of the utility model Figure 1 ;
[0017] Figure 2 This is a schematic diagram of the main gear reduction assembly provided in an embodiment of the present utility model;
[0018] Figure 3 for Figure 2 A top view schematic diagram of the main gear reduction assembly is provided.
[0019] Figure 4 This is a schematic diagram of the structure of the photovoltaic mounting frame provided in an embodiment of the present utility model;
[0020] Figure 5 Schematic diagram of the structure of the photovoltaic power station cleaning machine provided in this embodiment of the utility model Figure 2 (The cleaning facility is not in use);
[0021] Figure 6 for Figure 5 A schematic diagram of the photovoltaic power station cleaning machine is provided (the cleaning mechanism is in the cleaning and moving state, and the arrow indicates the direction of movement).
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Photovoltaic mounting frame; 2. Photovoltaic panel; 3. Rack; 4. Driven mounting side plate; 5. Driven mounting base plate; 6. Second driven reduction gear; 7. Second driven shaft; 8. Driven coaxial gear; 9. First driven shaft; 10. First driven reduction gear; 11. Driven gear; 12. Cleaning roller brush; 13. Anti-detachment limiting structure; 14. Main mounting side plate; 15. Drive motor; 16. Drive gear; 17. First main shaft; 18. First main reduction gear; 19. Main coaxial gear; 20. Second main shaft; 21. Second main reduction gear; 22. Main mounting base plate; 23. Extension; 24. Slider. Detailed Implementation
[0024] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0025] Please refer to the following: Figures 1 to 4 The photovoltaic power station cleaning machine provided by this utility model is described below. The photovoltaic power station cleaning machine includes a photovoltaic mounting frame 1, multiple photovoltaic panels 2, a cleaning drive mechanism, and a cleaning roller brush 12. The photovoltaic mounting frame 1 has rectangular unit frames arranged in an array. Multiple photovoltaic panels 2 are fixed one-to-one on the rectangular unit frames to form a rectangular photovoltaic array on the photovoltaic mounting frame 1. The cleaning drive mechanism is mounted on the photovoltaic mounting frame 1. The axis of the cleaning roller brush 12 is parallel to the short side of the rectangular photovoltaic array, and the length of the cleaning roller brush 12 is at least consistent with the length of the short side of the rectangular photovoltaic array. Driven by the cleaning drive mechanism, the cleaning roller brush 12 moves back and forth in a straight line along the long side of the rectangular photovoltaic array, sweeping the surface of the rectangular photovoltaic array in one pass. The cleaning drive mechanism includes a drive motor 15, a main gear reduction group, a driven gear reduction group, and two racks 3. The two racks 3 are fixed on the two opposite long sides of the photovoltaic mounting frame 1. The main gear reduction group and the driven gear reduction group are respectively installed at both ends of the cleaning roller brush 12 and mesh with the racks 3 on the same side. The drive motor 15 is installed at the end of the cleaning roller brush 12 near the main gear reduction group, driving the cleaning roller brush 12 to rotate. At the same time, the cleaning roller brush 12 is decelerated and moves linearly through the meshing of the main gear reduction group, the driven gear reduction group, and the racks 3.
[0026] Compared with the prior art, the photovoltaic power station cleaning machine provided by this utility model has the following advantages: while driving the cleaning roller brush 12 to rotate using a set of cleaning drive mechanism, the cleaning roller brush 12 can be decelerated and moved linearly by the gear reduction group installed on the cleaning roller brush 12 in cooperation with the rack 3. The mechanical structure of the whole machine is greatly simplified, the use of electrical components is reduced, the coordination of the rotation and linear movement of the cleaning roller brush 12 is improved, and the cleaning effect is improved.
[0027] The photovoltaic mounting frame 1 of this application is made of steel sections welded together to form a rectangular unit frame for the array; the four sides of the photovoltaic panel 2 are mounted on the rectangular unit frame to form a rectangular photovoltaic array. The cleaning roller brush 12 can be the same length as the long side of the rectangular photovoltaic array or the same length as the short side of the rectangular photovoltaic array.
[0028] It should be noted that, see Figure 5 and Figure 6To prevent the cleaning roller brush 12 from blocking sunlight from the photovoltaic panel 2, the long side of the photovoltaic mounting frame 1 extends outward to avoid the rectangular photovoltaic array. When not cleaning, the cleaning drive mechanism moves the cleaning roller brush 12 to the outer edge of the photovoltaic mounting frame 1.
[0029] In some embodiments, see Figures 1 to 3 As shown, the main gear reduction assembly includes a drive gear 16, a first main reduction gear 18, a main coaxial gear 19, and a second main reduction gear 21. The drive gear 16 is mounted on the cleaning roller brush 12. The first main reduction gear 18 meshes with the drive gear 16. The main coaxial gear 19 is coaxially mounted with the first main reduction gear 18. The second main reduction gear 21 meshes with the main coaxial gear 19 and is also meshed with the rack 3. The first main reduction gear 18 has a greater number of teeth than the drive gear 16. The number of teeth of the shaft gear 19 is less than the number of teeth of the first main reduction gear 18, and the number of teeth of the second main reduction gear 21 is greater than the number of teeth of the main coaxial gear 19, thereby achieving the deceleration movement of the sweeping roller brush 12; the main gear reduction group also includes a main reduction box, one end of the sweeping roller brush 12 rotates through the main reduction box, and the driving gear 16 is located in the main reduction box; the first main reduction gear 18 and the main coaxial gear 19 are installed in the main reduction box through the first main shaft 17, and the second main reduction gear 21 is installed in the main reduction box through the second main shaft 20.
[0030] The drive motor 15 drives the sweeping roller brush 12 to rotate, and the drive gear 16 mounted on the sweeping roller brush 12 rotates synchronously. The drive motor 15 has a high speed, and the power is reduced by the first main reduction gear 18 with a larger number of teeth. The main coaxial gear 19, which is coaxially mounted with the first main reduction gear 18, obtains the same speed. The speed is further reduced by the second main reduction gear 21 with a larger number of teeth than the main coaxial gear 19. Finally, the sweeping roller brush 12 is decelerated and moved, improving the sweeping effect.
[0031] The structure of the driven gear reduction group is the same as that of the main gear reduction group. Specifically, the driven gear reduction group includes a driven gearbox, a driven gear 11, a first driven reduction gear 10, a driven coaxial gear 8, a second driven reduction gear 6, a first driven shaft 9, and a second driven shaft 7. The driven gear reduction group rotates synchronously and decelerates and translates with the main gear reduction group.
[0032] In some embodiments, see Figures 1 to 3 As shown, the number of teeth on the driving gear 16 is the same as the number of teeth on the main coaxial gear 19, and the number of teeth on the first main reduction gear 18 is the same as the number of teeth on the second main reduction gear 21. Similarly, the number of teeth on the driven gear 11 is the same as the number of teeth on the driven coaxial gear 8, and the number of teeth on the second driven reduction gear 6 is the same as the number of teeth on the first driven reduction gear 10; the driving gear 16 is the same as the driven gear 11.
[0033] In some embodiments, see Figures 1 to 3 As shown, the main gearbox includes at least a main mounting base plate 22 and a main mounting side plate 14 parallel to the main mounting base plate 22, and a drive motor 15 is mounted on the main mounting base plate 22; the drive motor 15 is located on the side of the main mounting base plate 22 opposite to the main gear reduction assembly. Similarly, the slave gearbox includes a slave mounting base plate 5 and a slave mounting side plate 4 parallel to the slave mounting base plate 5, with the slave mounting base plate 5 located outside the slave mounting side plate 4.
[0034] In some embodiments, see Figure 2 As shown, the main mounting base plate 22 has an extension 23 that extends downward and fits against the outer side of the photovoltaic mounting frame 1. The inner side of the extension 23 is provided with a guide structure that cooperates with the outer side of the photovoltaic mounting frame 1. The guide structure enables the cleaning drive mechanism to form a reliable connection with the photovoltaic mounting frame 1, and also enables the cleaning drive mechanism to move linearly along the rack 3 or along the side length of the photovoltaic mounting frame 1 without deflection.
[0035] In some embodiments, see Figure 2 As shown, the guiding structure includes a guide groove on the outer surface of the photovoltaic mounting frame 1 and a slider 24 on the extension 23, with the slider 24 slidably engaged within the guide groove. When the cleaning drive mechanism moves along the long side of the rectangular photovoltaic array, the slider 24 slides along the guide groove, ensuring both the linear movement of the cleaning roller brush 12 and limiting the cleaning drive mechanism in the vertical direction, thus ensuring a reliable connection between the gearbox and the main gearbox and the photovoltaic mounting frame 1.
[0036] Optionally, the slider 24 of the guide structure and the guide groove are in a dovetail fit or a T-fit.
[0037] In some embodiments, see Figure 1 , Figures 4 to 6 As shown, anti-detachment limiting structures 13 are respectively provided at both ends of the long side of the photovoltaic mounting frame 1. When the cleaning drive mechanism moves to both ends of the photovoltaic mounting frame 1, it can be stopped by the anti-detachment limiting structures 13 and will not fall off the photovoltaic mounting frame 1.
[0038] In some embodiments, see Figure 1 , Figures 4 to 6 As shown, the anti-detachment limiting structure 13 includes anti-detachment limiting blocks or limit switches disposed at both ends of the long side of the photovoltaic mounting frame 1. When the main gearbox and the driven gearbox touch the anti-detachment limiting block or limit switch, the drive motor 15 stops driving, and the cleaning roller brush 12 no longer rotates or moves. The anti-detachment limiting structure 13 can also be a displacement sensor.
[0039] In some embodiments, see Figure 1 , Figures 5 to 6As shown, the cleaning roller brush 12 includes a cleaning roller shaft and a spiral brush mounted on the cleaning roller shaft. The rotation of the cleaning roller brush 12 can clean the dust on the photovoltaic panel 2.
[0040] Optionally, the cleaning roller shaft can be an array of brushes. Adjacent rows of brushes need to be staggered so that every point on the photovoltaic panel 2 can directly contact the brushes, avoiding the phenomenon of the brushes cleaning blank areas and not cleaning thoroughly.
[0041] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.
[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A photovoltaic power plant cleaning machine, characterized in that, The utility model relates to a photovoltaic installation frame (1) has the square unit frame of array arrangement including: A plurality of photovoltaic panels (2) are fixed on the square unit frame one by one and constitute a rectangular photovoltaic array on the photovoltaic installation frame (1); Cleaning roller brush (12) axis is parallel to the short side of the rectangular photovoltaic array, and the length of cleaning roller brush (12) is at least consistent with the short side length of the rectangular photovoltaic array;And Cleaning drive mechanism is installed on the photovoltaic installation frame (1);The cleaning drive mechanism includes drive motor (15), main gear reduction group, from gear reduction group and two racks (3);Two rack (3) is fixed on the opposite two long sides of photovoltaic installation frame (1) respectively, and the main gear reduction group and from gear reduction group are installed on the both ends of cleaning roller brush (12) respectively and are engaged with the rack (3) on the same side respectively;Drive motor (15) is installed on the one end of cleaning roller brush (12) close to the main gear reduction group, drives the rotation of cleaning roller brush (12), and the meshing of main gear reduction group, from gear reduction group and rack (3) realizes the straight line movement of cleaning roller brush (12) at a low speed; The cleaning roller brush (12) reciprocating straight line movement along the long side of the rectangular photovoltaic array under the driving of the cleaning drive mechanism, sweeps the surface of the rectangular photovoltaic array at a time. The main gear reduction group includes driving gear (16), first main reduction gear (18), main coaxial gear (19) and second main reduction gear (21), the driving gear (16) is installed on the cleaning roller brush (12), the first main reduction gear (18) is engaged with the driving gear (16), the main coaxial gear (19) is coaxially installed with the first main reduction gear (18), the second main reduction gear (21) is engaged with the main coaxial gear (19), and the second main reduction gear (21) is engaged with the rack (3);Wherein, the number of teeth of the first main reduction gear (18) is greater than the number of teeth of the driving gear (16), the number of teeth of the main coaxial gear (19) is less than the number of teeth of the first main reduction gear (18), and the number of teeth of the second main reduction gear (21) is greater than the number of teeth of the main coaxial gear (19), so that the cleaning roller brush (12) moves at a low speed;The main gear reduction group further includes a main reduction box, one end of the cleaning roller brush (12) rotates through the main reduction box, and the driving gear (16) is located in the main reduction box;The first main reduction gear (18) and main coaxial gear (19) are installed in the main reduction box through a first main shaft (17), and the second main reduction gear (21) is installed in the main reduction box through a second main shaft (20); 2. The photovoltaic plant cleaning machine of claim 1, wherein, The structure of the from gear reduction group is same with the structure of the main gear reduction group. The number of teeth of the driving gear (16) is same with the number of teeth of the main coaxial gear (19), and the number of teeth of the first main reduction gear (18) is same with the number of teeth of the second main reduction gear (21).
3. The photovoltaic plant cleaning machine of claim 2, wherein, 4. The photovoltaic plant cleaning machine of claim 2, wherein, The main reduction gearbox comprises at least a main mounting base plate (22) and a main mounting side plate (14) parallel to the main mounting base plate (22), and the driving motor (15) is mounted on the main mounting base plate (22); the driving motor (15) is located on the side of the main mounting base plate (22) away from the main gear reduction set.
5. The photovoltaic plant cleaning machine of claim 4, wherein, The main mounting base plate (22) has an extension (23) extending downward and abutting the outer side of the photovoltaic mounting frame (1), and the inner side of the extension (23) is provided with a guide structure matched with the outer side of the photovoltaic mounting frame (1).
6. The photovoltaic plant cleaning machine of claim 5, wherein, The guide structure comprises a guide groove provided on the outer side of the photovoltaic mounting frame (1) and a sliding block (24) provided on the extension (23), and the sliding block (24) is slidingly matched in the guide groove.
7. The photovoltaic plant cleaning machine of claim 1, wherein, The photovoltaic mounting frame (1) is provided with anti-disengagement limiting structures (13) at both ends of the long side, respectively.
8. The photovoltaic plant cleaning machine of claim 7, wherein, The anti-disengagement limiting structures (13) comprise anti-disengagement limiting blocks or travel switches provided at both ends of the long side of the photovoltaic mounting frame (1).
9. The photovoltaic plant cleaning machine of claim 1, wherein, The cleaning roller brush (12) comprises a cleaning roller shaft and a spiral brush provided on the cleaning roller shaft.