Driving wheel adjusting mechanism and photovoltaic cleaning robot

Abstract

The application discloses a driving wheel adjusting mechanism and a photovoltaic cleaning robot, relates to the photovoltaic technical field, and comprises a driving wheel assembly, a back plate and at least one adjusting mechanism; the driving wheel assembly is two, and the driving wheel assembly comprises a driving motor and a driving wheel in transmission connection with the driving motor; the back plate is provided with a horizontal adjusting hole matched with the driving motor; the adjusting mechanism is located on the back plate, and the adjusting mechanism can drive the two driving motors to move along the horizontal adjusting hole towards the direction of approaching or moving away from each other. The driving wheel adjusting mechanism provided by the application drives the two driving motors to move along the horizontal adjusting hole towards the direction of approaching or moving away from each other through the adjusting mechanism arranged on the back plate, meanwhile, the driving motor is in transmission connection with the driving wheel, so as to drive the driving wheel to rotate, thereby realizing the adjustable spacing of the two driving wheels of the photovoltaic cleaning robot.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and more specifically, to a drive wheel adjustment mechanism and a photovoltaic cleaning robot. Background Technology

[0002] Traditional dry-mounted photovoltaic cleaning robots are powered by motors to drive their cleaning actions. However, the distance between the two drive wheels on the same back panel is fixed, which cannot meet the needs of variable distance between the two drive wheels in actual field conditions. If a larger distance is set between the two drive wheels, although it can ensure better cleaning effect of the photovoltaic cleaning robot, it will increase the space occupied by the photovoltaic cleaning robot, making the transportation of the photovoltaic cleaning robot more inconvenient.

[0003] Therefore, how to achieve adjustable spacing between the two drive wheels of a photovoltaic cleaning robot has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a drive wheel adjustment mechanism to achieve adjustable spacing between the two drive wheels of a photovoltaic cleaning robot.

[0005] Another objective of this application is to provide a photovoltaic cleaning robot having the aforementioned drive wheel adjustment mechanism.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A drive wheel adjustment mechanism, comprising:

[0008] A drive wheel assembly, comprising two drive wheel assemblies, each drive wheel assembly including a drive motor and a drive wheel that is drive-connected to the drive motor;

[0009] A back plate, wherein the back plate is provided with a horizontal adjustment hole adapted to the drive motor;

[0010] At least one adjustment mechanism is located on the back plate, and the adjustment mechanism is capable of driving two drive motors to move along the horizontal adjustment hole in a direction that is closer to or further away from each other.

[0011] Optionally, in the above-mentioned drive wheel adjustment mechanism, a mounting base adapted to the drive motor is movably provided at the position of the horizontal adjustment hole, the drive motor is located on the mounting base, and the adjustment mechanism can drive the two mounting bases to move toward each other or away from each other.

[0012] Optionally, in the above-mentioned drive wheel adjustment mechanism, the adjustment mechanism includes a drive member and a transmission rod. The drive member is connected to the transmission rod so as to drive the two mounting seats to move toward each other or away from each other through the transmission rod. The transmission rod is arranged perpendicular or parallel to the extension direction of the horizontal adjustment hole.

[0013] Optionally, in the above-mentioned drive wheel adjustment mechanism, there are two adjustment mechanisms, and the driving components of the two adjustment mechanisms are respectively connected to the two mounting seats through the transmission rod.

[0014] Optionally, in the above-mentioned drive wheel adjustment mechanism, a first slide block is provided on the transmission rod, which can move along the transmission rod. The first slide block is connected to the mounting base, and the transmission rod is fixed to the back plate by a first support.

[0015] Optionally, in the above-mentioned drive wheel adjustment mechanism, there is one adjustment mechanism, the transmission rod is provided with a second slide block that can move along the transmission rod, and two mounting seats are respectively connected to first connecting rods, the two first connecting rods intersect on the second slide block, and the transmission rod is fixed to the back plate by a second support.

[0016] Optionally, in the above-mentioned drive wheel adjustment mechanism, the adjustment mechanism includes a base, a moving rod, and a pushing member. The moving rod is movably disposed on the base, the base is fixed to the back plate, and the pushing member is disposed at the end of the moving rod. The pushing member can drive the two drive motors to move in a direction that is closer to or further away from each other.

[0017] Optionally, in the above-described drive wheel adjustment mechanism, the outer wall of the moving rod is provided with a threaded portion, and the base is provided with a threaded hole that mates with the threaded portion; or,

[0018] The outer wall of the movable rod is provided with a threaded portion, and a locking nut that mates with the threaded portion is provided on the movable rod. The base is provided with an anti-loosening component that can lock the locking nut.

[0019] Optionally, in the above-mentioned drive wheel adjustment mechanism, the adjustment mechanism includes two second links, one end of each of the two second links is connected to the two drive wheel assemblies respectively, and the other ends of the two second links can intersect on the roller brush shaft of the photovoltaic cleaning robot.

[0020] A photovoltaic cleaning robot includes a drive wheel adjustment mechanism as described in any of the preceding claims.

[0021] The drive wheel adjustment mechanism provided in this application has horizontal adjustment holes on the back plate that are adapted to the drive motors of the drive wheel assembly. Simultaneously, at least one adjustment mechanism is provided on the back plate, which can drive two drive motors to move along the horizontal adjustment holes in a direction that moves closer to or further away from each other, thereby adjusting the distance between the two drive wheels of the photovoltaic cleaning robot. As can be seen from the above example, the drive wheel adjustment mechanism provided in this application, through the adjustment mechanism on the back plate, drives two drive motors to move along the horizontal adjustment holes in a direction that moves closer to or further away from each other. Simultaneously, the drive motors can be connected to the drive wheels via transmission to drive the drive wheels to rotate, thereby achieving adjustable distance between the two drive wheels of the photovoltaic cleaning robot. Furthermore, by reducing the distance between the two drive wheels, the problem of the photovoltaic cleaning robot occupying a large space during transportation can be solved. At the same time, by increasing the distance between the two drive wheels during cleaning, the dust-raising space of the roller brush can be increased, thereby reducing the obstruction of dust on the drive wheels and resulting in better cleaning effect.

[0022] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is an isometric view of the drive wheel adjustment mechanism provided in Embodiment 1 of this application;

[0025] Figure 2 A front view of the drive wheel adjustment mechanism provided in Embodiment 1 of this application;

[0026] Figure 3 This is an isometric view of the drive wheel adjustment mechanism provided in Embodiment 2 of this application;

[0027] Figure 4 This is a front view of the drive wheel adjustment mechanism provided in Embodiment 2 of this application;

[0028] Figure 5This is an isometric view of the drive wheel adjustment mechanism provided in Embodiment 3 of this application;

[0029] Figure 6 This is a first-view schematic diagram of the adjustment mechanism provided in Embodiment 3 of this application;

[0030] Figure 7 This is a second-view schematic diagram of the adjustment mechanism provided in Embodiment 3 of this application;

[0031] Figure 8 This is an assembly diagram of the second link provided in Embodiment 3 of this application.

[0032] Among them, 100 is the drive wheel adjustment mechanism, 10 is the drive wheel assembly, 20 is the back plate, 30 is the adjustment mechanism, and 40 is the second link;

[0033] 11 is the drive motor, 12 is the drive wheel, 121 is the limit wheel, and 122 is the traveling wheel;

[0034] 21 is a horizontal adjustment hole, 22 is a mounting base, 23 is a guide rail, and 24 is a slider;

[0035] 31 is the driving component, 32 is the transmission rod, 33 is the first slide, 34 is the first support, 35 is the second slide, 36 is the first connecting rod, 37 is the second support, 38 is the base, 381 is the locking nut, 382 is the anti-loosening component, 39 is the moving rod, and 391 is the pushing component;

[0036] 200 is the roller brush shaft. Detailed Implementation

[0037] The core of this application is to provide a drive wheel adjustment mechanism to enable the adjustable spacing between the two drive wheels of a photovoltaic cleaning robot.

[0038] Another core aspect of this application is to provide a photovoltaic cleaning robot with the aforementioned drive wheel adjustment mechanism.

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] Dry-hanging photovoltaic cleaning robots are specialized cleaning devices used to clean the surface of photovoltaic modules. They generally consist of a walking mechanism, a cleaning mechanism, a self-charging motor, and a control module. The frame of the photovoltaic module serves as the track for the cleaning robot to move along. The walking mechanism and the cleaning mechanism move back and forth on the surface of the photovoltaic module to achieve the cleaning purpose.

[0041] Traditional dry-mounted photovoltaic cleaning robots typically use a motor to power the drive wheels, which in turn drive the robot to perform cleaning actions. However, the distance between the two drive wheels on the same backplate is fixed, which cannot meet the requirement of variable distance between the two drive wheels in actual field conditions.

[0042] Therefore, such as Figure 1 As shown in the figure, this application discloses a drive wheel adjustment mechanism 100, including a drive wheel assembly 10, a back plate 20, and at least one adjustment mechanism 30. The adjustment mechanism 30, mounted on the back plate 20, drives two drive motors 11 to move towards or away from each other. Simultaneously, the drive motors 11 are connected to drive wheels 12 via a transmission connection, causing the drive wheels 12 to rotate. This achieves adjustable spacing between the two drive wheels 12 of the photovoltaic cleaning robot. Furthermore, by reducing the spacing between the two drive wheels 12, the problem of the photovoltaic cleaning robot occupying a large space during transportation is solved. At the same time, by increasing the spacing between the two drive wheels 12 during cleaning, the dust-raising space of the roller brush is increased, thereby reducing the obstruction of dust on the drive wheels 12 and resulting in better cleaning performance.

[0043] The following will combine Figures 1 to 8 The drive wheel adjustment mechanism 100 disclosed in the embodiments of this application will be explained and described in detail.

[0044] Among them, such as Figures 1 to 4 As shown, the back plate 20 can adopt an approximately isosceles trapezoidal structure or an approximately rectangular structure, such as... Figure 5 As shown. Furthermore, two drive wheel assemblies 10 are used, and the two drive wheel assemblies 10 are symmetrically distributed on the back plate 20 along the central axis of the back plate 20. As... Figure 1 , Figure 3 and Figure 5 As shown, the drive wheel assembly 10 may include a drive motor 11 and a drive wheel 12 that is connected to the drive motor 11 in a transmission manner, so that the drive motor 11 can drive the drive wheel 12 to rotate, thereby enabling the photovoltaic cleaning robot to walk on the support surface such as photovoltaic modules.

[0045] To achieve adjustable spacing between the two drive wheels 12 of the photovoltaic cleaning robot, such as Figures 1 to 5 As shown, the back plate 20 can be provided with horizontal adjustment holes 21 adapted to the drive motors 11, that is, each drive motor 11 corresponds to one horizontal adjustment hole 21, such as... Figures 1 to 4 As shown, a horizontal adjustment hole 21 can also be provided through the hole, such as... Figure 5As shown. Simultaneously, the adjustment mechanism 30 can be located on the back plate 20. Through the adjustment mechanism 30, the two drive motors 11 can move along the horizontal adjustment hole 21 in a direction that moves closer to or further away from each other, thereby enabling the drive motors 11 to drive the drive wheels 12 in a direction that moves closer to or further away from each other, thus achieving adjustment of the distance between the two drive wheels 12 of the photovoltaic cleaning robot. It should be noted that the horizontal adjustment hole 21 can be a rectangular hole, an oblong hole, or any other hole with a certain adjustment space.

[0046] In some embodiments, such as Figure 1 , Figure 3 and Figure 5 As shown, the drive wheel 12 may include a limiting wheel 121 and a traveling wheel 122. The limiting wheel 121 can fit against the side wall of the supporting surface such as the photovoltaic module, thereby limiting the cleaning path of the photovoltaic cleaning robot and preventing the photovoltaic cleaning robot from deviating during cleaning. At the same time, the traveling wheel 122 can contact the supporting surface such as the photovoltaic module to drive the photovoltaic cleaning robot to move on the supporting surface such as the photovoltaic module. In addition, the limiting wheel 121 and the traveling wheel 122 can be connected to the drive motor 11 through a right-angle transmission unit, so that the drive motor 11 can drive the limiting wheel 121 and the traveling wheel 122 to rotate simultaneously. It should be noted that the right-angle transmission unit may include a first transmission shaft and a second transmission shaft arranged perpendicularly to each other. The first transmission shaft and the second transmission shaft are connected by a first bevel gear set, and the limiting wheel 121 and the traveling wheel 122 are distributed and connected on the first transmission shaft and the second transmission shaft, respectively. At the same time, the drive motor 11 can drive the second transmission shaft to rotate, thereby realizing the synchronous rotation of the limiting wheel 121 and the traveling wheel 122. Of course, the limit wheel 121 can also be a non-powered wheel, that is, the drive motor 11 only drives the walking wheel 122 to rotate, thereby realizing movement on the support surface such as photovoltaic modules.

[0047] In some embodiments, such as Figure 1 and Figure 3 As shown, a mounting base 22 adapted to the drive motor 11 is movably provided at the position of the horizontal adjustment hole 21. The drive motor 11 is located on the mounting base 22, and the adjustment mechanism 30 can drive the two mounting bases 22 to move towards or away from each other. The mounting base 22 can adopt an inverted T-shaped structure, that is, the mounting base 22 can be composed of a rectangular plate for mounting the drive motor 11 and a connecting plate for connecting with the adjustment mechanism 30. The rectangular plate of the mounting base 22 can have an opening for mounting the drive motor 11, so that the drive motor 11 can be easily installed at the opening position of the mounting base 22, and the output shaft of the drive motor 11 can easily pass through the horizontal adjustment hole 21 and be connected to the drive wheel 12 through a right-angle transmission unit.

[0048] In some embodiments, such as Figures 1 to 4As shown, the adjustment mechanism 30 may include a drive member 31 and a transmission rod 32, and the drive member 31 and the transmission rod 32 are tractively connected to drive the two mounting seats 22 to move toward each other or away from each other via the transmission rod 32. Figure 3 and Figure 4 As shown, the transmission rod 32 can be set perpendicular to the extending direction of the horizontal adjustment hole 21. Of course, as... Figure 1 and Figure 2 As shown, the transmission rod 32 can also be arranged parallel to the extension direction of the horizontal adjustment hole 21. It should be noted that the driving component 31 and the transmission rod 32 can be driven by a worm gear mechanism, a lead screw motor, or a telescopic cylinder, etc., which can drive the mounting base 22 to move. This article does not limit them.

[0049] In some embodiments, such as Figure 1 and Figure 2 As shown, two adjustment mechanisms 30 can be used, and the driving components 31 of the two adjustment mechanisms 30 are respectively connected to the two mounting seats 22 via transmission rods 32. The two transmission rods 32 can be arranged parallel to the extension direction of the horizontal adjustment hole 21, so that the two driving components 31 can drive the two mounting seats 22 to move respectively, thereby realizing the drive motor 11 on the mounting seat 22 to drive the drive wheels 12 to move in a direction closer to or further away from each other, so as to adjust the distance between the two drive wheels 12 of the photovoltaic cleaning robot. By controlling the two drive wheel assemblies 10 with two adjustment mechanisms 30 respectively, the flexibility and convenience of adjusting the drive wheel assembly 10 can be improved, thereby meeting the needs of variable distance between the two drive wheels in actual field.

[0050] In some embodiments, such as Figure 1 and Figure 2 As shown, a first slide block 33 that moves along the transmission rod 32 can be provided on the transmission rod 32, and the connecting plate of the mounting base 22 can be connected to the first slide block 33 by fasteners such as bolts. Thus, the transmission rod 32 can be driven by the driving member 31, so that the first slide block 33 drives the mounting base 22 to move along the transmission rod 32. Simultaneously, one end of the transmission rod 32 near the driving member 31 and the other end away from the driving member 31 can be fixed to the back plate 20 by the first support 34, thereby ensuring the stability of the transmission rod 32 driving the first slide block 33. It should be noted that the connecting plate of the first slide block 33 and the mounting base 22 can also adopt an integral structure, that is, the connecting plate can extend towards one side of the back plate 20 to form a protruding structure, and the protruding structure can cooperate with the transmission rod 32, so that the driving member 31 drives the transmission rod 32, thereby driving the mounting base 22 to move along the transmission rod 32.

[0051] In some embodiments, such as Figure 3 and Figure 4As shown, the adjustment mechanism 30 can also be a single unit, and the adjustment mechanism 30 can be located on the central axis between the two mounting seats 22. The transmission rod 32 can be set perpendicular to the extension direction of the horizontal adjustment hole 21. A second slide 35 that can move along the transmission rod 32 is provided on the transmission rod 32. At the same time, the two mounting seats 22 are respectively connected to the first connecting rods 36. The two first connecting rods 36 intersect on the second slide 35. That is, the second slide 35 can be connected to the connecting plates of the two mounting seats 22 through the two first connecting rods 36 respectively. Thus, the transmission rod 32 can drive the second slide 35 to move up and down, and the second slide 35 can simultaneously drive the two mounting seats 22 to move towards or away from each other. In addition, the end of the transmission rod 32 near the driving member 31 and the end away from the driving member 31 can be fixed to the back plate 20 through the second support 37, thereby ensuring the stability of the movement of the second slide 35 driven by the transmission rod 32. By using an adjustment mechanism 30, the number of parts can be reduced, costs can be saved, and the adjustment of the distance between the two drive wheel assemblies 10 can be made more convenient. It should be noted that an included angle γ is formed between the two first connecting rods 36, and 90°≤γ<180°, that is, the two first connecting rods 36 can be adjusted within the range of 90° to 180° under the drive of the transmission rod 32.

[0052] In some embodiments, such as Figure 3 and Figure 4 As shown, to ensure the stability of the drive wheel assembly 10's movement, a guide rail 23 parallel to the horizontal adjustment hole 21 can be provided on the back plate 20, and a slider 24 is slidably mounted on the guide rail 23. The connecting plate of the mounting base 22 and the slider 24 can be connected by bolts or other fasteners, allowing the slider 24 to slide on the guide rail 23, thus guiding the movement of the mounting base 22 and ensuring the stability of the drive wheel assembly 10's movement. It should be noted that two guide rails 23 can be used, each corresponding to a mounting base 22. Alternatively, a single, through-type guide rail 23 can be used, with both sliders 24 moving simultaneously on one guide rail 23. Furthermore, the connecting plate between the slider 24 and the mounting base 22 can also be an integral structure; this is not limited here.

[0053] In some embodiments, such as Figure 5 As shown, two adjustment mechanisms 30 can be used, and each adjustment mechanism 30 may include a base 38, a moving rod 39, and a pushing member 391. The base 38 can be fixed to the back plate 20 with fasteners such as bolts, and the moving rod 39 is movably mounted on the base 38. The pushing member 391 is installed at the end of the moving rod 39, allowing the moving rod 39 to move on the base 38. This enables the two pushing members 391 to drive the two drive motors 11 to move in directions closer to or further apart, thereby adjusting the distance between the two drive wheels 12 of the photovoltaic cleaning robot.

[0054] In some embodiments, such as Figure 6 and Figure 7 As shown, the base 38 can adopt an inverted T-shaped structure, and the base 38 is composed of a first connecting part and a second connecting part perpendicular to the first connecting part. The first connecting part can be fixed to the back plate 20 by fasteners such as bolts. At the same time, the moving rod 39 can be inserted through the second connecting part and can move along the extension direction of the horizontal adjustment hole 21 on the second connecting part, thereby driving the pusher 391 to adjust the distance between the two drive motors 11.

[0055] In some embodiments, such as Figure 6 and Figure 7 As shown, the pusher 391 can adopt a U-shaped structure, and the pusher 391 includes two clamping arms and a mounting part connecting the two clamping arms. The mounting part can be connected to the end of the moving rod 39, and the two clamping arms can clamp the drive motor 11, so that the drive motor 11 can be moved by the pusher 391.

[0056] In some embodiments, the outer wall of the movable rod 39 may have a threaded portion, and a threaded hole that mates with the threaded portion may be provided on the second connecting portion of the base 38. Simultaneously, the mounting portion of the pusher 391 can be installed on the end of the movable rod 39 using fasteners such as bolts, and the pusher 391 can rotate relative to the movable rod 39 to prevent it from rotating synchronously with the movable rod 39 when the movable rod 39 is rotated. When it is necessary to adjust the distance between the two drive wheels 12 of the photovoltaic cleaning robot, simply rotate the movable rod 39. The movable rod 39 can then move on the base 38, thereby causing the pusher 391 at the end of the movable rod 39 to drive the drive motor 11, thus adjusting the distance between the two drive wheels 12 of the photovoltaic cleaning robot.

[0057] In some embodiments, such as Figures 5 to 7 As shown, a threaded portion is provided on the outer wall of the movable rod 39, and a locking nut 381 that mates with the threaded portion is provided on the movable rod 39. The movable rod 39 is movably mounted on the second connecting portion of the base 38, and locking nuts 381 are respectively provided on both sides of the second connecting portion, and the locking nuts 381 are installed on the movable rod 39 to axially limit the movable rod 39. In addition, an anti-loosening member 382 that can lock the locking nut 381 can be fixed on the base 38, thereby restricting the rotation of the locking nut 381. When it is necessary to adjust the distance between the two drive wheels 12 of the photovoltaic cleaning robot, simply rotate the movable rod 39. At this time, the movable rod 39 can move relative to the base 38, thereby causing the pusher 391 at the end of the movable rod 39 to drive the drive motor 11 to move, realizing the adjustment of the distance between the two drive wheels 12 of the photovoltaic cleaning robot.

[0058] In some embodiments, such as Figures 5 to 7As shown, the anti-loosening component 382 adopts a U-shaped structure and consists of two limiting arms and a fixing part connecting the two limiting arms. The fixing part can be fixed to the second connecting part of the base 38 by fasteners such as bolts. At the same time, a rectangular notch can be opened on the limiting arm, so that the rotation of the locking nut 381 can be limited by the side wall of the rectangular notch, preventing the locking nut 381 from rotating synchronously with the moving rod 39.

[0059] In some embodiments, such as Figure 8 As shown, the adjustment mechanism 30 may include two second links 40, which are located on the back plate 20 near the roller brush of the photovoltaic cleaning robot. One end of each second link 40 can be hinged to one of the two drive wheel assemblies 10, and the other end of each second link 40 can intersect on the roller brush shaft 200 of the photovoltaic cleaning robot. Thus, by adjusting the distance between the drive wheel assemblies 10, the height of the roller brush of the photovoltaic cleaning robot can be adjusted, changing the amount of compression of the roller brush on the supporting surfaces such as photovoltaic modules. This can match various working conditions, improve the cleaning effect of the photovoltaic cleaning robot, achieve efficient cleaning of the intelligent photovoltaic cleaning robot, and improve the adaptability of the photovoltaic cleaning robot in complex working conditions.

[0060] This application also discloses a photovoltaic cleaning robot, including the drive wheel adjustment mechanism 100 disclosed in the above embodiment. Therefore, the photovoltaic cleaning robot has all the technical effects of the drive wheel adjustment mechanism 100, which will not be repeated here.

[0061] The terms "first" and "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units may include steps or units not listed, but rather not listed.

[0062] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A drive wheel adjustment mechanism, characterized in that, include: The drive wheel assembly (10) comprises two drives, and each drive wheel assembly (10) includes a drive motor (11) and a drive wheel (12) that is connected to the drive motor (11) in a transmission. The back plate (20) is provided with a horizontal adjustment hole (21) adapted to the drive motor (11). At least one adjustment mechanism (30) is located on the back plate (20), and the adjustment mechanism (30) is capable of driving two drive motors (11) to move along the horizontal adjustment hole (21) in a direction that is closer to or further away from each other.

2. The drive wheel adjustment mechanism according to claim 1, characterized in that, A mounting base (22) adapted to the drive motor (11) is movably provided at the position of the horizontal adjustment hole (21). The drive motor (11) is located on the mounting base (22). The adjustment mechanism (30) can drive the two mounting bases (22) to move toward each other or away from each other.

3. The drive wheel adjustment mechanism according to claim 2, characterized in that, The adjustment mechanism (30) includes a drive member (31) and a transmission rod (32). The drive member (31) is connected to the transmission rod (32) so as to drive the two mounting seats (22) to move toward each other or away from each other through the transmission rod (32). The transmission rod (32) is arranged perpendicular to or parallel to the extension direction of the horizontal adjustment hole (21).

4. The drive wheel adjustment mechanism according to claim 3, characterized in that, There are two adjustment mechanisms (30), and the driving components (31) of the two adjustment mechanisms (30) are respectively connected to the two mounting seats (22) through the transmission rod (32).

5. The drive wheel adjustment mechanism according to claim 4, characterized in that, The transmission rod (32) is provided with a first slide (33) that can move along the transmission rod (32). The first slide (33) is connected to the mounting base (22). The transmission rod (32) is fixed to the back plate (20) by a first support (34).

6. The drive wheel adjustment mechanism according to claim 3, characterized in that, The adjustment mechanism (30) is one, and a second slide (35) that can move along the transmission rod (32) is provided on the transmission rod (32). Two mounting seats (22) are respectively connected to first connecting rods (36). The two first connecting rods (36) intersect on the second slide (35). The transmission rod (32) is fixed to the back plate (20) by a second support (37).

7. The drive wheel adjustment mechanism according to claim 6, characterized in that, The back plate (20) is provided with a guide rail (23) parallel to the horizontal adjustment hole (21), and a slider (24) is slidably provided on the guide rail (23), and the mounting base (22) is connected to the slider (24).

8. The drive wheel adjustment mechanism according to claim 1, characterized in that, The adjustment mechanism (30) includes a base (38), a moving rod (39), and a pusher (391). The moving rod (39) is movably mounted on the base (38), and the base (38) is fixed to the back plate (20). The pusher (391) is located at the end of the moving rod (39), and the pusher (391) can drive the two drive motors (11) to move toward each other or away from each other.

9. The drive wheel adjustment mechanism according to claim 8, characterized in that, The outer wall of the movable rod (39) is provided with a threaded portion, and the base (38) is provided with a threaded hole that mates with the threaded portion; or, The outer wall of the movable rod (39) is provided with a threaded part, and the movable rod (39) is provided with a locking nut (381) that cooperates with the threaded part. The base (38) is provided with an anti-loosening part (382) that can lock the locking nut (381).

10. The drive wheel adjusting mechanism according to any one of claims 1 to 9, characterized in that, The adjustment mechanism (30) includes two second links (40), one end of each second link (40) is connected to one of the two drive wheel assemblies (10), and the other ends of the two second links (40) can intersect on the roller brush shaft (200) of the photovoltaic cleaning robot.

11. A photovoltaic cleaning robot, characterized in that, Includes the drive wheel adjustment mechanism (100) as described in any one of claims 1 to 10.

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