Photovoltaic cleaning robot with middle motor

Abstract

The utility model discloses a photovoltaic cleaning robot with a motor arranged in the middle. The photovoltaic cleaning robot with the motor arranged in the middle comprises a walking beam, a driving assembly, a driven assembly and a transmission assembly connected between the driving assembly and the driven assembly. The at least two driven assemblies are arranged at an upper opening and a lower opening of the photovoltaic cleaning robot. The driving assembly is arranged between an upper opening and a lower opening of the photovoltaic cleaning robot. The driving assembly comprises a motor, and a motor shaft of the motor extends towards the two sides and is connected with the transmission assembly. The driven assembly comprises a driven shaft and walking wheels driven by the driven shaft to rotate. The transmission assembly comprises a transmission shaft connected between the motor shaft and the driven shaft. The motor shaft transmits power to the two driven assemblies located at the upper opening and the lower opening at the same time through the transmission assembly. The photovoltaic cleaning robot with the motor arranged in the middle does not occupy the space of the end of a photovoltaic array, is better in force transmission performance and can achieve a larger cleaning area.

Description

Technical Field

[0001] This application relates to the field of photovoltaic cleaning technology, and in particular to a photovoltaic cleaning robot with a centrally located motor. Background Technology

[0002] A photovoltaic (PV) power station is a device that converts solar energy into electrical energy. The power generation efficiency and lifespan of a PV power station are greatly affected by contamination, making regular or on-demand cleaning crucial. To facilitate the cleaning of PV power stations, the industry has developed cleaning equipment such as PV cleaning robots.

[0003] An existing photovoltaic cleaning robot spans a photovoltaic panel array, with a motor drive unit installed at one or both ends to drive a walking beam to clean the photovoltaic panel array. In the prior art, the motor is usually located at the end of the photovoltaic cleaning robot, which requires a large space at the end of the photovoltaic array. Moreover, since the motor transmits force in one direction, its force transmission efficiency is affected when the photovoltaic cleaning robot is long.

[0004] Therefore, it is necessary to propose a technical solution to overcome the shortcomings of existing technologies. Summary of the Invention

[0005] This application provides a photovoltaic cleaning robot with a centrally located motor, which does not occupy the space at the end of the photovoltaic array, has better force transmission performance, and can achieve a larger cleaning area.

[0006] This application is achieved through the following technical solution: a photovoltaic cleaning robot with a centrally located motor, comprising a walking beam, an active component, a driven component, and a transmission component connecting the active component and the driven component. There are at least two driven components, located at the upper and lower openings of the photovoltaic cleaning robot. The active component is located between the upper and lower openings of the photovoltaic cleaning robot. The active component includes a motor, with its motor axis extending to both sides and connected to the transmission component. The driven component includes a driven shaft and a walking wheel driven by the driven shaft. The transmission component includes a transmission shaft connected between the motor shaft and the driven shaft. The motor shaft transmits power to the two driven components located at the upper and lower openings simultaneously through the transmission component.

[0007] As a further improvement of the technical solution of this application, the active component includes a motor bracket and a motor support wheel, the motor bracket is connected to the walking beam, and the motor support wheel is rotatably connected to the motor bracket.

[0008] As a further improvement to this application, the motor support wheels are two in number and are symmetrically arranged on both sides of the motor shaft.

[0009] As a further improvement of the present application, the transmission assembly includes a connecting sleeve, which is sleeved on one end of the motor shaft and the transmission shaft to connect one end of the motor shaft and the transmission shaft.

[0010] As a further improvement of this application, the motor shaft, the transmission shaft, and the connecting sleeve are provided with radially extending connecting holes, and the motor shaft and the connecting sleeve, as well as the transmission shaft and the connecting sleeve, are connected and fixed by inserting pins into the connecting holes.

[0011] As a further improvement of the technical solution of this application, the transmission assembly includes a sliding sleeve, which is sleeved on one end of the driven shaft and the transmission shaft, and a groove extending axially along the transmission shaft is provided on the sliding sleeve or the driven shaft.

[0012] As a further improvement of this application, the sliding sleeve is fixed to the drive shaft by a pin, and the sliding sleeve slides in the groove with the pin to realize the relative movement of the driven shaft and the sliding sleeve.

[0013] As a further improvement of the technical solution of this application, the driven component includes a mounting bracket and a track roller. The traveling wheel travels on the track with toothed holes to drive the traveling beam to move, so as to drive the motor support wheel to roll on the photovoltaic array.

[0014] As a further improvement to the technical solution of this application, the motor support wheel is supported on the frame of two adjacent photovoltaic panels.

[0015] As a further improvement of this application, a shaft support frame is connected to the walking beam, and the shaft support frame is connected to the drive shaft to prevent the drive shaft from bending.

[0016] The photovoltaic cleaning robot provided in this application has at least two driven components, which are located at the upper and lower openings of the photovoltaic cleaning robot. The active component is located between the upper and lower openings of the photovoltaic cleaning robot. The active component includes a motor, with the motor shaft extending to both sides and connected to a transmission component respectively. The driven component includes a driven shaft and a walking wheel driven by the driven shaft. The transmission component includes a transmission shaft connected between the motor shaft and the driven shaft. The motor shaft transmits power to the two driven components located at the upper and lower openings simultaneously through the transmission component. That is, the motor of the photovoltaic cleaning robot provided in this application is located in the middle, so it does not occupy the space at the end of the photovoltaic array. It is suitable for photovoltaic arrays with small end spaces. Moreover, by transmitting power to both sides through the motor to drive the walking beam to move, the photovoltaic cleaning robot can be made longer, which can achieve a larger cleaning area. Attached Figure Description

[0017] Figure 1 This is a 3D view of the photovoltaic cleaning robot with the motor in the center of the motor applied to a photovoltaic array.

[0018] Figure 2 yes Figure 1 A 3D view after removing the walking beam.

[0019] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0020] Figure 4 This is a cross-sectional view of the photovoltaic cleaning robot with the motor in the middle applied to a photovoltaic array.

[0021] Figure 5 yes Figure 4 A magnified view of a section at point B.

[0022] Figure 6 This is a partial enlarged view of the driven component of the photovoltaic cleaning robot with the motor in the middle of the motor, as described in this application.

[0023] Figure 7 This is a partial enlarged view of the shaft support frame of the photovoltaic cleaning robot with the motor in the middle of the motor, as described in this application.

[0024] The attached figures are labeled as follows: 100, photovoltaic array; 200, photovoltaic cleaning robot; 201, upper opening; 202, lower opening; 10, active component; 11, motor; 111, motor bracket; 112, motor support wheel; 12, motor shaft; 20, driven component; 21, mounting bracket; 22, driven shaft; 23, walking wheel; 24, track roller; 30, transmission component; 31, transmission shaft; 32, connecting sleeve; 33, sliding sleeve; 331, chute; 4, walking beam; 41, shaft support frame; 411, horizontal plate; 412, vertical plate; 5, track; 6, rubber strip. Detailed Implementation

[0025] To provide a clearer understanding of the technical features, objectives, and effects of this application, the specific embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise specified, the technical features in the following embodiments can be combined with each other. The embodiments described below are merely some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] Please see Figures 1 to 7As shown, this application provides a photovoltaic cleaning robot 200 with a centrally located motor. The centrally located photovoltaic cleaning robot 200 is placed on a photovoltaic array 100 and is used to clean dust and debris from the photovoltaic array 100. The centrally located photovoltaic cleaning robot 200 includes a single-motor drive mechanism and a walking beam 4 driven by the single-motor drive mechanism. An adhesive strip 6 is connected to the walking beam 4. During movement, the adhesive strip 6 contacts the photovoltaic array 100 to scrape off dust, debris, etc., from the photovoltaic array 100.

[0028] In this embodiment, the single-motor drive mechanism of the photovoltaic cleaning robot 200 includes an active component 10, a driven component 20, and a transmission component 30 connecting the active component 10 and the driven component 20. The active component 10 includes a motor 11 with a motor shaft 12. The driven component 20 includes a driven shaft 22 and a walking wheel 23 driven by the driven shaft 22. The transmission component 30 includes a transmission shaft 31 connecting the motor shaft 12 and the driven shaft 22. There are at least two driven components 20, located at the upper opening 201 and lower opening 202 of the photovoltaic cleaning robot 200, and the active component 10 is located between the upper opening 201 and lower opening 202 of the photovoltaic cleaning robot 200. The motor shaft 12 of the active component 10 extends to both sides and is connected to the transmission component 30 respectively. The motor shaft 12 transmits power to the two driven components 20 located at the upper opening 201 and lower opening 202 simultaneously through the transmission component 30. That is, the motor 11 of the photovoltaic cleaning robot 200 provided in this application is located in the middle, so it does not occupy the space at the end of the photovoltaic array 100, making it suitable for photovoltaic arrays 100 with small end spaces. Moreover, the motor 11 transmits power to both sides to drive the walking beam 4 to move, making the photovoltaic cleaning robot 200 suitable for being longer and achieving a larger cleaning area. It should be noted that the above-mentioned motor being centrally located or located in the middle means that the motor is not located at the end of the photovoltaic cleaning robot 200, but at any position between the two ends, and this position is not necessarily the midpoint of the photovoltaic cleaning robot 200.

[0029] For further details, please refer to Figure 5 and Figure 6As shown, in the circumferential direction of the transmission shaft 31, the transmission shaft 31 is relatively fixed to the motor shaft 12 and the driven shaft 22, so that the motor shaft 12, transmission shaft 31, and driven shaft 22 rotate synchronously in the circumferential direction. In the axial direction of the transmission shaft 31, the transmission shaft 31 is relatively fixed to the motor shaft 12, while the driven shaft 22 can move relative to the transmission shaft 31 to float and adjust in the axial direction of the transmission shaft 31. In this way, while ensuring stable and reliable power transmission, it can adapt to changes in the distance between the tracks 5 set at both ends and avoid jamming.

[0030] Please see Figure 3 and Figure 5 As shown, the active component 10 is located in the middle of the photovoltaic cleaning robot 200, specifically between the upper opening 201 and the lower opening 202. In this embodiment, both the upper opening 201 and the lower opening 202 are driven components 20, and the power output by the active component 10 is transmitted to both sides. Specifically, there are at least two driven components 20, located at the upper opening 201 and the lower opening 202 of the photovoltaic cleaning robot 200, while the active component 10 is located between the upper opening 201 and the lower opening 202, and is relatively closer to the upper opening 201. In this embodiment, the active component 10 includes a motor bracket 111 and a motor support wheel 112 rotatably connected to the motor bracket 111. The motor bracket 111 is connected to the walking beam 4, and the motor support wheel 112 is used to support the photovoltaic array 100. The motor support wheel 112 is not directly driven by the motor 11. The motor 11 drives the driven components 20 located at both ends to move, and the motor support wheel 112 is passively rolled by the traveling beam 4, mainly serving a supporting function. That is, the traveling wheels 23 of the driven component 20 move on the toothed track 5, driving the traveling beam 4 to move, and the traveling beam 4 drives the motor support wheel 112 to roll on the photovoltaic array 100. In this embodiment, there are two motor support wheels 112, symmetrically arranged on both sides of the motor shaft 12.

[0031] The active component 10 provided in this embodiment can be easily installed at any position along the axial direction of the transmission component 30, and it only needs to be connected to the driven component 20 at both ends through the transmission component 30. The photovoltaic array 100 does not need to be specially designed for the active component 10, and can be arranged normally without setting any clearance. The active component 10 is preferably installed between two adjacent photovoltaic panels, so that the motor support wheel 112 can ride on the edge of the two adjacent photovoltaic panels to move.

[0032] Please see Figure 6As shown, the driven assembly 20 does not include the motor 11. Specifically, the driven assembly 20 includes a mounting bracket 21, a driven shaft 22, a traveling wheel 23, and track rollers 24. The traveling wheel 23 and track rollers 24 are mounted on the mounting bracket 21. The traveling wheel 23 is a toothed wheel with cylindrical teeth, and it is connected to the driven shaft 22 via a keyway so that it can be driven to rotate by the driven shaft 22. The traveling wheel 23 travels on a track 5 with toothed holes, and the track rollers 24 are a pair arranged opposite each other, sandwiched on both sides of the track 5. It can be understood that both the driving assembly 10 and the driven assembly 20 may also include bearings to ensure the smooth rotation of the motor shaft 12 and the driven shaft 22.

[0033] Please see Figure 5 and Figure 6 As shown, the transmission assembly 30 includes a transmission shaft 31, a connecting sleeve 32, and a sliding sleeve 33. One end of the motor shaft 12 and the transmission shaft 31 are connected via the connecting sleeve 32 and are relatively fixed in the circumferential and axial directions. The other end of the driven shaft 22 and the transmission shaft 31 are connected via the sliding sleeve 33 and are relatively fixed in the circumferential direction, but are allowed to slide relative to each other in the axial direction of the transmission shaft 31. The transmission assembly 30 includes a transmission shaft 31 and a connecting sleeve 32. The connecting sleeve 32 is sleeved on one end of the motor shaft 12 and the transmission shaft 31 to connect the motor shaft 12 and one end of the transmission shaft 31. In this embodiment, the transmission shaft 31 comprises multiple segments, and the connecting sleeve 32 is also sleeved between two adjacent segments of the transmission shaft 31. The motor shaft 12, the drive shaft 31, and the connecting sleeve 32 are provided with radially extending connecting holes. The motor shaft 12 and the connecting sleeve 32, as well as the drive shaft 31 and the connecting sleeve 32, are connected and fixed by pins inserted into the connecting holes. The diameter of the pin matches the diameter of the connecting hole so that when the pin is inserted into the connecting hole, the two components to be connected are fixed in both the circumferential and axial directions.

[0034] Please refer to it again. Figure 6As shown, the transmission assembly 30 includes a sliding sleeve 33, which is sleeved on one end of the driven shaft 22 and the transmission shaft 31. The sliding sleeve 33 has a groove 331 extending axially. The sliding sleeve 33 is connected and fixed to the transmission shaft 31 by a pin. The sliding sleeve 33 and the driven shaft 22 slide relative to each other within the groove 331 via the pin. In other embodiments, the groove 331 may also be formed on the driven shaft 22. The width of the pin matches the width of the groove 331, so that when the pin is inserted into the connecting hole, the driven shaft 22 and the sliding sleeve 33 are fixed relative to each other in the circumferential direction, while in the axial direction, i.e., the length direction of the groove 331, the driven shaft 22 and the sliding sleeve 33 can slide relative to each other.

[0035] Please see Figure 7 As shown, a shaft support frame 41 is connected to the traveling beam 4, and the shaft support frame 41 connects to the drive shaft 31 to prevent the drive shaft 31 from bending. In this embodiment, the shaft support frame 41 includes a horizontal plate 411 and a vertical plate 412, which are connected to form a structure with a "7"-shaped cross-section. The horizontal plate 411 is connected to the traveling beam 4, and the vertical plate 412 has a hole for the drive shaft 31 to pass through. Multiple shaft support frames 41 can be provided, and the multiple shaft support frames 41 are evenly and spaced along the axial direction of the drive shaft 31 to suspend the drive shaft 31 and prevent the drive shaft 31 from bending downward under its own weight when it is long.

[0036] As can be seen from the above description of the specific embodiments, the motor 11 of the photovoltaic cleaning robot 200 provided in this application is located in the middle, so it does not occupy the space at the end of the photovoltaic array 100, which is suitable for photovoltaic arrays 100 with small end space. Moreover, by transmitting power to both sides through the motor 11 to drive the walking beam 4 to move, a larger cleaning area can be achieved.

[0037] This application is illustrated through several specific embodiments. Those skilled in the art will understand that various modifications and equivalent substitutions can be made to this application without departing from its scope. Furthermore, various modifications can be made to this application for specific situations or circumstances without departing from the scope of this utility model. Therefore, this application is not limited to the specific embodiments disclosed, but should include all embodiments falling within the scope of the claims of this application.

Claims

1. A photovoltaic cleaning robot with a centrally located motor, comprising a walking beam, an active component, a driven component, and a transmission component connecting the active component and the driven component, characterized in that, The driven components are at least two and are disposed at the upper and lower openings of the photovoltaic cleaning robot. The active component is disposed between the upper and lower openings of the photovoltaic cleaning robot. The active component includes a motor, the motor shaft of which extends to both sides and is respectively connected to the transmission component. The driven component includes a driven shaft and a walking wheel driven by the driven shaft. The transmission component includes a transmission shaft connected between the motor shaft and the driven shaft. The motor shaft transmits power to the two driven components located at the upper and lower openings simultaneously through the transmission component.

2. The photovoltaic cleaning robot with a centrally located motor as described in claim 1, characterized in that, The active component includes a motor bracket and a motor support wheel. The motor bracket is connected to the traveling beam, and the motor support wheel is rotatably connected to the motor bracket.

3. The photovoltaic cleaning robot with a centrally located motor as described in claim 2, characterized in that, There are two motor support wheels, symmetrically arranged on both sides of the motor shaft.

4. The photovoltaic cleaning robot with a centrally located motor as described in claim 2, characterized in that, The transmission assembly includes a connecting sleeve, which is sleeved on one end of the motor shaft and the transmission shaft to connect one end of the motor shaft and the transmission shaft.

5. The photovoltaic cleaning robot with a centrally located motor as described in claim 4, characterized in that, The motor shaft, the drive shaft, and the connecting sleeve are provided with radially extending connecting holes. The motor shaft and the connecting sleeve, as well as the drive shaft and the connecting sleeve, are connected and fixed by inserting pins into the connecting holes.

6. The photovoltaic cleaning robot with a centrally located motor as described in claim 2, characterized in that, The transmission assembly includes a sliding sleeve, which is sleeved on one end of the driven shaft and the transmission shaft. The sliding sleeve or the driven shaft has a groove extending axially along the transmission shaft.

7. The photovoltaic cleaning robot with a centrally located motor as described in claim 6, characterized in that, The sliding sleeve is fixed to the drive shaft by a pin, and the sliding sleeve slides in the groove with the pin to achieve relative movement between the driven shaft and the sliding sleeve.

8. The photovoltaic cleaning robot with a centrally located motor as described in any one of claims 2 to 7, characterized in that, The driven component also includes a mounting bracket and track rollers. The traveling wheels travel on the toothed track to drive the traveling beam forward, thereby causing the motor support wheel to roll on the photovoltaic array.

9. The photovoltaic cleaning robot with a centrally located motor as described in claim 8, characterized in that, The motor support wheel is supported on the frame of two adjacent photovoltaic panels.

10. The photovoltaic cleaning robot with a centrally located motor as described in claim 1, characterized in that, A shaft support frame is connected to the traveling beam, and the shaft support frame is connected to the drive shaft to prevent the drive shaft from bending.

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