A roller brush adjustment device for a photovoltaic panel cleaning drone

Abstract

This invention discloses a roller brush adjustment device for a photovoltaic panel cleaning drone. The drone body has an adjustment frame at its bottom, a traction mechanism symmetrically arranged at the top of the adjustment frame, and an adjustment mechanism symmetrically arranged at the bottom of the adjustment frame. A shock-absorbing mechanism is located at the bottom of the adjustment mechanism. An angle adjustment mechanism is movably connected to both sides of one end of the adjustment frame. The traction mechanism drives the adjustment mechanism to achieve coarse adjustment of the overall roller brush tilt angle. The adjustment mechanism achieves fine adjustment of the roller brush position and angle. The shock-absorbing mechanism buffers impacts and vibrations during cleaning operations. The angle adjustment mechanism enables multi-angle adaptive adjustment and rotational drive of the rotating roller brush. This invention allows for real-time, multi-degree-of-freedom precise control of the roller brush attitude during drone flight, adapting to the cleaning needs of photovoltaic panels with different tilt angles and surfaces, improving cleaning efficiency and operational safety, while also possessing excellent shock absorption and stability performance.

Description

Technical Field

[0001] This invention belongs to the technical field of drone brush adjustment devices, specifically relating to a brush adjustment device for a photovoltaic panel cleaning drone. Background Technology

[0002] In photovoltaic power generation systems, the cleanliness of the photovoltaic panel surface directly affects power generation efficiency. To address this core operation and maintenance requirement, the industry has developed a variety of cleaning technologies and devices. Among these, designs based on fixed installation or track-mounted operation are relatively mature. For example, the "Photovoltaic Panel Cleaning Device" disclosed in application number "CN116116772A" is an increasingly mature technology. This device includes a support assembly, a drive assembly, and a cleaning component. The support assembly includes a support frame and a support component. The support frame includes multiple support rods connected together. Each support rod includes a first support rod and a second support rod arranged opposite to each other. The support component is located on one side of the support frame and connected to it. The extension direction of the support component is the same as the arrangement direction of the first to second support rods. Both the drive assembly and the cleaning component are connected to the support assembly. This application, by utilizing a support assembly composed of a support frame and support components, can reduce the mass of the photovoltaic panel cleaning device, improve the efficiency of its transportation and movement, thereby increasing the cleaning efficiency of the photovoltaic panels. It also ensures that the relatively lightweight photovoltaic panel cleaning device has high rigidity, reducing the probability of damage and extending its service life. Currently, the use of drones equipped with roller brushes for cleaning is becoming increasingly common. However, existing drone cleaning devices often struggle to flexibly adapt to the different tilt angles and installation positions of photovoltaic panels. Traditional roller brush adjustment mechanisms often employ fixed or simple hinged designs, failing to achieve precise multi-degree-of-freedom adjustment. This results in uneven contact between the roller brush and the photovoltaic panel surface during cleaning, leading to poor cleaning performance and potentially scratching the panel. Existing cleaning devices often use rigid connections or simple shock-absorbing structures, which are ineffective at absorbing the vibration energy generated during drone takeoff, landing, and flight. This results in unstable contact force between the roller brush and the photovoltaic panel, easily causing wear on the panel surface or damage to the roller brush. Furthermore, traditional shock-absorbing mechanisms lack adaptive adjustment capabilities, performing poorly when dealing with different photovoltaic panel materials or environmental conditions, affecting the device's lifespan and cleaning quality. Summary of the Invention

[0003] The purpose of this invention is to provide a roller brush adjustment device for a photovoltaic panel cleaning drone, which solves the above-mentioned shortcomings in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: This invention provides a roller brush adjustment device for a photovoltaic panel cleaning drone, comprising a drone body, an adjustment frame at the bottom of the drone body, a traction mechanism symmetrically arranged at the top of the adjustment frame, an adjustment mechanism symmetrically arranged at the bottom of the adjustment frame, a shock-absorbing mechanism at the bottom of the adjustment mechanism, and angle adjustment mechanisms movably connected to both sides of one end of the adjustment frame. The traction mechanism is used to drive the adjustment mechanism to achieve coarse adjustment of the overall tilt angle of the roller brush, the adjustment mechanism is used to achieve fine adjustment of the position and angle of the roller brush, the shock-absorbing mechanism is used to buffer the impact and vibration during cleaning operations, and the angle adjustment mechanism is used to achieve multi-angle adaptive adjustment and rotation drive of the rotating roller brush.

[0005] Preferably, the pulling mechanism includes a mounting base fixedly connected to the adjusting frame, and first hydraulic pulling rods are connected to both sides of the mounting base. One end of the first hydraulic pulling rod is connected to a pulling head. The pulling head is connected to a connecting triangle plate. One side of the connecting triangle plate is movably connected to the side of the adjusting frame, and the other side is connected to a second hydraulic pulling rod.

[0006] Preferably, the adjusting mechanism includes an adjusting fixed seat movably connected to the second hydraulic pull rod. The top of the adjusting fixed seat is connected to two first adjusting hydraulic telescopic rods, one end of which is movably connected to the inside of the adjusting frame. The bottom two sides of the adjusting fixed seat are movably connected to second adjusting hydraulic telescopic rods, one end of which is movably connected to the inside of the adjusting frame.

[0007] Preferably, the adjusting frame is internally connected to an anti-detachment rod via a movable pin. The free end of the anti-detachment rod is movably connected to the adjusting fixed seat. The anti-detachment rod and the adjusting fixed seat work together to form an anti-sway support structure, preventing the adjusting fixed seat from swaying during the adjustment process.

[0008] Preferably, the shock absorption mechanism includes a support frame hydraulic rod fixedly connected to the mounting base. A fixing screw is fixedly installed on the outer top of the support frame hydraulic rod. The fixing screw is connected to a first movable adjusting frame and a second movable adjusting frame. The first movable adjusting frame and the second movable adjusting frame are hinged to each other. A limiting screw is provided in the middle of the support frame hydraulic rod. The limiting screw is movably connected to the first movable adjusting frame. A rotating shaft is fixedly connected to the bottom end of the second movable adjusting frame. A T-shaped frame is provided on one side of the rotating shaft. A roller brush is movably connected between the rotating shaft and the T-shaped frame. The support frame hydraulic rod, the first movable adjusting frame, and the second movable adjusting frame form a multi-stage hinged buffer structure.

[0009] Preferably, the angle adjustment mechanism includes a drive base fixedly connected to an adjustment frame or mounting base, a rotary drive component and an angle adjustment drive assembly disposed on the drive base, and a rotary transmission assembly for driving the rotary brush to rotate; the angle adjustment drive assembly cooperates with the end of the rotary brush through an adjustment connecting arm to adjust the cleaning tilt angle of the rotary brush; the rotary transmission assembly is drivenly connected to the rotary brush to drive the rotary brush to rotate to achieve the cleaning operation.

[0010] Preferably, the angle adjustment drive assembly includes a servo motor, a main conical tooth, a driven conical tooth, and an electric telescopic rod. The servo motor drives the main conical tooth to rotate through a gear transmission mechanism, and the main conical tooth meshes with the driven conical tooth. One end of the electric telescopic rod is fixedly connected to the mounting shaft of the driven conical tooth, and the other end is fixedly connected to the adjustment connecting arm, for adjusting the tilt angle of the rotating brush. The rotation transmission assembly includes a motor, a main turntable, and a rotating disk. The motor drives the rotating disk to rotate through the main turntable and a belt transmission assembly, and the rotating brush is fixed between the rotating disks.

[0011] Preferably, it also includes a PLC controller, which is electrically connected to the first hydraulic traction rod, the second hydraulic traction rod, the first adjusting hydraulic telescopic rod, the second adjusting hydraulic telescopic rod, the servo motor, the motor, and the electric telescopic rod, and is used to coordinate and control the actions of each component.

[0012] Preferably, the surface of the roller brush and / or rotating roller brush is covered with a flexible cleaning material to accommodate cleaning of the photovoltaic panel surface and avoid scratches.

[0013] Preferably, the UAV body is equipped with a battery, which powers the pulling mechanism, adjusting mechanism, shock absorption mechanism, angle adjustment mechanism and PLC controller.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention provides a roller brush adjustment device for a photovoltaic panel cleaning drone. Through the coordinated action of a pulling mechanism and an adjustment mechanism, it achieves real-time, multi-degree-of-freedom precise control of the roller brush angle and position during drone flight. This allows the roller brush to closely conform to photovoltaic panels with different tilt angles and surfaces, effectively avoiding missed areas or repeated cleaning, and significantly improving cleaning coverage and operational efficiency. The shock absorption mechanism, through a multi-stage hinged buffer structure, significantly absorbs and disperses vibrations and impacts during operation, protecting the photovoltaic panel surface from damage and enhancing the drone's flight stability. The angle adjustment mechanism uses a combination of servo drive and gear transmission to achieve high-speed, stable operation and flexible attitude adjustment of the rotating roller brush, adapting to various complex cleaning scenarios. The entire device achieves automated coordinated control through a PLC controller, possessing excellent self-adaptability, operational reliability, and service life, significantly improving the quality and safety of photovoltaic panel cleaning operations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is one of the structural schematic diagrams of the present invention; Figure 3 This is the second structural schematic diagram of the present invention; Figure 4 This is a schematic diagram of the traction mechanism structure of the present invention; Figure 5 This is a schematic diagram of the angle adjustment mechanism of the present invention; Figure 6 This is a schematic diagram of the shock absorption mechanism of the present invention; Figure 7 This is a schematic diagram of the second movable adjustment frame structure of the present invention.

[0016] In the diagram: 1. UAV body; 2. Adjustable frame; 3. Pulling mechanism; 301. Mounting base; 302. First hydraulic pull rod; 303. Pulling head; 304. Connecting triangular plate; 305. Second hydraulic pull rod; 4. Adjustment mechanism; 401. Adjustable fixing base; 402. First adjustable hydraulic telescopic rod; 403. Second adjustable hydraulic telescopic rod; 404. Anti-detachment rod; 5. Shock absorption mechanism; 501. Landing frame hydraulic rod column; 502. Fixing screw; 503. First movable adjusting frame; 504. Second movable adjustment frame; 505, limit screw ring; 506, rotating shaft; 507, T-shaped frame; 508, roller brush; 6, angle adjustment mechanism; 601, fixed plate base; 602, servo motor; 603, main gear; 604, main shaft; 605, main bevel gear; 606, driven bevel gear; 607, device housing; 608, motor; 609, main turntable; 6010, driven turntable; 6011, rotating disk; 6012, rotating roller brush; 6013, adjusting connecting arm; 6014, electric telescopic rod. Detailed Implementation

[0017] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0018] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0019] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0020] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0021] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0023] Example 1 like Figures 1-7 As shown in the figure, the photovoltaic panel cleaning drone brush adjustment device proposed in this embodiment includes a drone body 1, an adjustment frame 2 is provided at the bottom of the drone body 1, two symmetrically arranged pulling mechanisms 3 are provided at the top of the adjustment frame 2, two symmetrically arranged adjustment mechanisms 4 are provided at the bottom of the adjustment frame 2, a shock absorption mechanism 5 is provided at the bottom of each adjustment mechanism 4, and an angle adjustment mechanism 6 is movably connected to the end of the adjustment frame 2 near the head of the drone.

[0024] The traction mechanism 3 includes two symmetrically arranged mounting seats 301 installed at the top center of the adjusting frame 2. Each mounting seat 301 has a first hydraulic traction rod 302 connected to both sides by movable screws.

[0025] Each first hydraulic traction rod 302 has a traction head 303 installed at its free end. The free end of the traction head 303 is connected to a connecting triangle plate 304 by a movable pin. One side of the connecting triangle plate 304 is movably connected to the side of the adjusting frame 2 by a first movable pin. The bottom of the connecting triangle plate 304 is connected to a second hydraulic traction rod 305 by a second movable pin.

[0026] The free end of the second hydraulic pull rod 305 is movably mounted on the adjustment mechanism 4.

[0027] In practical use, when cleaning photovoltaic panels, to facilitate cleaning at different photovoltaic tilt angles and positions, the first hydraulic pull rod 302, symmetrically arranged on the adjustment frame 2, is extended and retracted. This extends and retracts the pull head 303 at one end of the first hydraulic pull rod 302. During the process of pulling the pull head 303, the connecting triangular plate 304 is activated. Under the limiting adjustment of the movable pin, the connecting triangular plate 304 allows the first hydraulic pull rod 302 to be pulled, thereby facilitating the second hydraulic pull rod 305 at the bottom. The second hydraulic pull rod 305 then drives the adjustment mechanism 4 to adjust the angle, thus facilitating the cleaning of photovoltaic panels and enabling the drone to drive the cleaning roller to clean the photovoltaic panels in close contact.

[0028] The adjustment mechanism 4 includes an adjustment fixing seat 401 that is movably connected to the bottom end of the second hydraulic pull rod 305. Two first adjustment hydraulic telescopic rods 402 are movably mounted on the top of the adjustment fixing seat 401 through movable pins. The free ends of the first adjustment hydraulic telescopic rods 402 are movably connected to one side of the inside of the adjustment frame 2.

[0029] The bottom of the adjusting fixed base 401 is movably connected to two sides of a second adjusting hydraulic telescopic rod 403. The free end of the second adjusting hydraulic telescopic rod 403 is movably connected to the inner side of the adjusting frame 2. The adjusting frame 2 is connected to an anti-detachment rod 404 through a third movable pin. The free end of the anti-detachment rod 404 is movably connected to the adjusting fixed base 401. The two work together to form an anti-sway support structure.

[0030] In practical use, when adjusting the angle of the photovoltaic panel cleaning roller brush, the first hydraulic pull rod 302 pulls the adjusting fixed seat 401 to make a coarse adjustment of the overall tilt angle, laying the foundation for the fine adjustment of the adjustment mechanism. Then, the extension and retraction of the first adjusting hydraulic telescopic rod 402 facilitates the adjustment of the adjusting fixed seat 401's pull position. The extension and retraction of the second adjusting hydraulic telescopic rod 403 at the bottom of the adjusting fixed seat 401, in coordination with the adjusting frame 2, allows for fine-tuning of the position / angle of the adjusting fixed seat 401 in three-dimensional space, while simultaneously providing support to the adjusting frame 2 to ensure the stability of the adjusting fixed seat 401. At the same time, the anti-detachment pull rod 404 on one side of the middle of the adjusting fixed seat 401 facilitates coordination and balance with the adjusting fixed seat 401, preventing wobbling during angle adjustment and facilitating use.

[0031] By adjusting the angle and position of the adjusting base 401, the angle / position of the shock absorption mechanism and the roller brush 508 installed below the adjusting base 401 can be precisely adjusted indirectly.

[0032] The shock absorption mechanism 5 includes two support frame hydraulic rods 501. The support frame hydraulic rods 501 are vertical hydraulic telescopic structures. Their top ends are fixedly connected to the matching connecting seats at the bottom of the adjusting fixed seat 401, providing vertical support and hydraulic buffer foundation for the entire shock absorption mechanism. The top outer side of the support frame hydraulic rods 501 is fixedly fitted with fixing screws 502, and the middle outer side of the rod is fixedly fitted with limiting screws 505. The two provide hinge fulcrum and vertical limit for the movable adjusting frame.

[0033] The fixed screw ring 502 is hinged to the upper end of the first movable adjustment frame 503 via a movable pin. The middle end of the first movable adjustment frame 503 is hinged to the limiting screw ring 505, forming a flexible support with two fulcrums. The lower end of the first movable adjustment frame 503 is hinged to the upper end of the second movable adjustment frame 504. The two together form a multi-directional rotatable hinged buffer arm, providing buffer space for lateral / oblique vibration.

[0034] The lower end of the second movable adjustment frame 504 is fixedly connected to one side of the rotating shaft 506. A symmetrical T-shaped frame 507 is located next to the rotating shaft 506. The T-shaped frame 507 is fixed to the lower end of the second movable adjustment frame 504. The two ends of the roller brush 508 are movably hinged to the inner sides of the rotating shaft 506 and the T-shaped frame 507, respectively. The surface of the roller brush 508 is covered with a flexible cleaning material, and its two ends are equipped with rotating support wheels that flexibly contact the surface of the photovoltaic panel.

[0035] Each shock absorption mechanism is connected to the adjustment fixing seat 401 of the adjustment mechanism 4 via the hydraulic rod 501 of the support frame. The roller brushes 508 of the two shock absorption mechanisms are synchronous operation structures, jointly undertaking the shock absorption and cleaning functions of photovoltaic panel cleaning.

[0036] In practical use, the hydraulic rod 501 of the landing gear has a hydraulic oil chamber and a telescopic piston structure inside, which can adaptively extend and retract vertically according to the contact pressure between the roller brush 508 and the photovoltaic panel. When the roller brush contacts the hard surface of the photovoltaic panel or the drone produces vertical bumps during flight, the hydraulic rod offsets the vertical impact force through the slow movement of the piston, avoiding scratches on the photovoltaic panel or damage to the roller brush caused by rigid contact. The first movable adjustment frame 503 and the second movable adjustment frame 504 are hinged by multiple sets of movable pins, and the first movable adjustment frame 503 forms a double-fulcrum flexible connection with the fixed screw ring 502 and the limiting screw ring 505, so that the entire frame can rotate slightly in the horizontal and inclined directions. When the roller brush cleans the uneven surface of the photovoltaic panel, encounters protrusions / depressions, or the drone produces lateral swaying, the hinged frame disperses the lateral / oblique vibration energy through multi-directional rotation, avoiding the vibration from being transmitted to the adjustment frame 2 and the drone body, ensuring the flight stability of the drone and the effective cleaning of the roller brush.

[0037] The drone flies over the photovoltaic panel. After coarse adjustment by the pulling mechanism 3 and fine adjustment by the adjusting mechanism 4, the roller brush 508 gradually approaches and contacts the surface of the photovoltaic panel. The vertical impact force generated at the moment of contact acts directly on the roller brush 508, and is transmitted through the rotating shaft 506 to the second movable adjusting frame 504, and then to the hydraulic rod 501 of the support frame. The hydraulic rod 501 slowly extends and retracts downward through the piston to offset the rigid contact force. At the same time, the hinged frame rotates slightly to avoid hard contact between the roller brush and the photovoltaic panel, which could cause scratches. The angle adjustment mechanism 6 includes a fixed plate base 601 fixedly connected to one side of the mounting base 301. A servo motor 602 is fixedly connected to the top of each fixed plate base 601. A main gear 603 is fixedly connected to the transmission end of the servo motor 602. A driven gear is meshed with the main gear 603. A main shaft 604 is fixedly connected to the bottom end of the driven gear. A main bevel gear 605 is fixedly connected to the free end of the main shaft 604. A driven bevel gear 606 is meshed with the main bevel gear 605.

[0038] Each of the main shafts 604 is provided with a device housing 607 on its outer side. A motor 608 is fixedly connected to one side of the device housing 607. A main turntable 609 is fixedly connected to the transmission end of the motor 608. A secondary turntable 6010 is connected to the main turntable 609 via a first belt drive. A rotating disk 6011 is connected to the secondary turntable 6010 via a second belt drive.

[0039] A rotating brush 6012 is fixedly connected between the inner sides of the two rotating disks 6011, and an adjusting connecting arm 6013 is provided on the outer sides of both ends of the rotating brush 6012.

[0040] Each adjusting connecting arm 6013 has an electric telescopic rod 6014 fixedly connected to one end, and one end of the electric telescopic rod 6014 is fixedly connected to the mounting shaft of the conical tooth 606.

[0041] In practical use, when the rotating brush 6012 is rotating, in order to facilitate dust removal and cleaning of the photovoltaic panel, the adjustment of the rotating brush 6012 is achieved by the rotation of the servo motor 602, which drives the main gear 603 to rotate. During the rotation of the main gear 603, the main shaft 604 is driven to rotate through the driven gear, which in turn drives the main conical tooth 605 at the bottom to rotate. This facilitates the meshing of the main conical tooth 605 with the driven conical tooth 606 during rotation, making it easy to adjust the angle of the electric telescopic rod 6014. The extension and retraction of the electric telescopic rod 6014 drives the adjustment connecting arm 6013 to adjust the angle.

[0042] The rotation of motor 608 drives the main turntable 609 to rotate, which in turn drives the secondary turntable 6010 to rotate. In turn, the rotating disk 6011 rotates the rotating brush 6012, thereby cleaning the photovoltaic panel.

[0043] A PLC controller is fixedly connected to one side of the UAV body 1. The first hydraulic pull rod 302, the second hydraulic pull rod 305, the first adjustable hydraulic telescopic rod 402, the second adjustable hydraulic telescopic rod 403, the servo motor 602, the motor 608, and the electric telescopic rod 6014 are all electrically connected to an external power supply through the PLC controller.

[0044] In practical use, the first hydraulic pull rod 302, the second hydraulic pull rod 305, the first adjusting hydraulic telescopic rod 402, the second adjusting hydraulic telescopic rod 403, the servo motor 602, the motor 608, and the electric telescopic rod 6014 are controlled by a PLC controller. This facilitates the control of a photovoltaic panel cleaning drone's roller brush adjustment device, allowing for easy adjustment of the roller brush during cleaning of the photovoltaic panels. This ensures that no deposits accumulate on the surface of the photovoltaic panels, increasing their radiant efficiency when exposed to sunlight.

[0045] Working principle: During the operation, the drone flies to the top of the photovoltaic panel to be cleaned and uses the onboard PLC controller to coordinate the actions of various hydraulic and electric components to achieve adaptive cleaning of the photovoltaic panel surface. First, the pulling mechanism 3 is activated to achieve initial overall angle adjustment. When the photovoltaic panel has a certain tilt angle, the PLC controller controls the extension and retraction of the first hydraulic pulling rod 302. Through the pulling head 303, the connecting triangle plate 304 rotates around the first movable pin. The rotation of the connecting triangle plate 304 further drives the second hydraulic pulling rod 305 to move, thereby pulling the adjustment mechanism 4 to deflect as a whole, so that the roller brush system initially adapts to the tilt surface of the photovoltaic panel. This process realizes the rapid and coarse adjustment of the roller brush angle by the UAV in flight, laying the foundation for subsequent fine adjustment. Subsequently, the adjustment mechanism 4 performs fine-tuning of position and angle. The adjustment fixing seat 401 serves as the base platform for the roller brush installation. Its top is movably connected to the inside of the adjustment frame 2 through the first adjustment hydraulic telescopic rod 402, and its bottom is multi-directionally pulled through the second adjustment hydraulic telescopic rod 403. When the first adjustment hydraulic telescopic rod 402 and the second adjustment hydraulic telescopic rod 403 extend and retract in coordination under the control of PLC, the adjustment fixing seat 401 can be driven to make fine-tuning of its position in three-dimensional space, thereby accurately controlling the contact pressure and contact angle between the roller brush and the photovoltaic panel surface. The anti-detachment rod 404 effectively prevents the adjustment fixing seat 401 from shaking during the adjustment process, ensuring system stability. When the roller brush contacts the photovoltaic panel for cleaning, the shock absorption mechanism 5 plays a key role. The hydraulic rod 501 of the landing gear is hydraulically adjusted to adapt to different contact heights. The fixing screw 502 and the limiting screw 505 set on its outer side cooperate with the first movable adjustment frame 503 and the second movable adjustment frame 504 to form a multi-level hinged buffer structure. When the roller brush 508 encounters an uneven surface or sudden vibration during the cleaning process, this structure can absorb and disperse the impact force through the flexible rotation of the movable joint, avoiding rigid contact that could scratch or damage the surface of the photovoltaic panel, while improving the flight stability of the UAV. Finally, the angle adjustment mechanism 6 is responsible for the rotation and angle adjustment of the rotating brush 6012. The servo motor 602 drives the main gear 603 to mesh with the driven gear, driving the main shaft 604 and the main bevel gear 605 to rotate, which in turn drives the electric telescopic rod 6014 to deflect at an angle through the driven bevel gear 606. The telescopic movement of the electric telescopic rod 6014 controls the tilt angle of the rotating brush 6012 by adjusting the connecting arm 6013, so that it can better fit the curved surface or edge of the photovoltaic panel. At the same time, the motor 608 drives the rotating brush 6012 to rotate at high speed through the main turntable 609, belt drive, driven turntable 6010, and rotating disk 6011, so as to achieve efficient cleaning of the photovoltaic panel. The entire system is automated through a PLC controller. All hydraulic tie rods, hydraulic telescopic rods, servo motors, small motors, and electric telescopic rods are connected to the PLC control system. Based on preset programs or real-time sensor signals such as tilt sensors and pressure sensors, the system automatically adjusts each actuator to achieve fully automatic, highly adaptable, and low-damage photovoltaic panel cleaning operations.

[0046] In this application, the drone itself is powered by a built-in battery.

[0047] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A roller brush adjustment device for a photovoltaic panel cleaning drone, comprising a drone body (1), characterized in that, The bottom of the UAV body (1) is provided with an adjustment frame (2), the top of the adjustment frame (2) is symmetrically provided with a pulling mechanism (3), the bottom of the adjustment frame (2) is symmetrically provided with an adjustment mechanism (4), the bottom of the adjustment mechanism (4) is provided with a shock-absorbing mechanism (5), and the two sides of one end of the adjustment frame (2) are movably connected with an angle adjustment mechanism (6); the pulling mechanism (3) is used to drive the adjustment mechanism (4) to achieve coarse adjustment of the overall tilt angle of the roller brush, the adjustment mechanism (4) is used to achieve fine adjustment of the position and angle of the roller brush, the shock-absorbing mechanism (5) is used to buffer the impact and vibration during the cleaning operation, and the angle adjustment mechanism (6) is used to achieve multi-angle adaptive adjustment and rotation drive of the rotating roller brush.

2. The photovoltaic panel cleaning drone brush adjustment device according to claim 1, characterized in that, The pulling mechanism (3) includes a mounting base (301) fixedly connected to the adjusting frame (2). The mounting base (301) is connected to two sides of a first hydraulic pulling rod (302). One end of the first hydraulic pulling rod (302) is connected to a pulling head (303). The pulling head (303) is connected to a connecting triangle plate (304). One side of the connecting triangle plate (304) is movably connected to the side of the adjusting frame (2), and the other side is connected to a second hydraulic pulling rod (305).

3. The photovoltaic panel cleaning drone roller brush adjustment device according to claim 2, characterized in that, The adjustment mechanism (4) includes an adjustment fixing seat (401) movably connected to the second hydraulic pull rod (305). The top of the adjustment fixing seat (401) is connected to two first adjustment hydraulic telescopic rods (402). One end of the first adjustment hydraulic telescopic rod (402) is movably connected to the inside of the adjustment frame (2). The bottom two sides of the adjustment fixing seat (401) are movably connected to the second adjustment hydraulic telescopic rods (403). One end of the second adjustment hydraulic telescopic rod (403) is movably connected to the inside of the adjustment frame (2).

4. The photovoltaic panel cleaning drone brush adjustment device according to claim 3, characterized in that, The adjustment frame (2) is connected to an anti-detachment rod (404) by a movable pin. The free end of the anti-detachment rod (404) is movably connected to the adjustment fixing seat (401). The anti-detachment rod (404) and the adjustment fixing seat (401) work together to form an anti-sway support structure to prevent the adjustment fixing seat (401) from shaking during the adjustment process.

5. The photovoltaic panel cleaning drone brush adjustment device according to claim 1, characterized in that, The shock absorption mechanism (5) includes a support frame hydraulic rod (501) fixedly connected to the mounting base (301). A fixing screw (502) is fixedly installed on the outer top of the support frame hydraulic rod (501). The fixing screw (502) is connected to a first movable adjustment frame (503) and a second movable adjustment frame (504). The first movable adjustment frame (503) and the second movable adjustment frame (504) are hinged to each other. A limiting screw (502) is provided in the middle of the support frame hydraulic rod (501). 5) The limiting screw ring (505) is movably connected to the first movable adjustment frame (503); the bottom end of the second movable adjustment frame (504) is fixedly connected to a rotating shaft (506), a T-shaped frame (507) is provided on one side of the rotating shaft (506), and a roller brush (508) is movably connected between the rotating shaft (506) and the T-shaped frame (507). The hydraulic rod column (501) of the support frame, the first movable adjustment frame (503) and the second movable adjustment frame (504) form a multi-level hinged buffer structure.

6. The photovoltaic panel cleaning drone brush adjustment device according to claim 1, characterized in that, The angle adjustment mechanism (6) includes a drive base fixedly connected to the adjustment frame (2) or the mounting base (301), a rotary drive component and an angle adjustment drive assembly disposed on the drive base, and a rotary transmission assembly for driving the rotary brush (6012) to rotate; the angle adjustment drive assembly cooperates with the end of the rotary brush (6012) through the adjustment connecting arm (6013) to adjust the cleaning tilt angle of the rotary brush (6012); the rotary transmission assembly is connected to the rotary brush (6012) for driving the rotary brush (6012) to rotate to achieve the cleaning operation.

7. The photovoltaic panel cleaning drone brush adjustment device according to claim 6, characterized in that, The angle adjustment drive assembly includes a servo motor (602), a main bevel gear (605), a secondary bevel gear (606), and an electric telescopic rod (6014). The servo motor (602) drives the main bevel gear (605) to rotate through a gear transmission mechanism. The main bevel gear (605) meshes with the secondary bevel gear (606). One end of the electric telescopic rod (6014) is fixedly connected to the mounting shaft of the secondary bevel gear (606), and the other end is fixedly connected to the adjustment connecting arm (6013) for adjusting the tilt angle of the rotating brush (6012). The rotation transmission assembly includes a motor (608), a main turntable (609), and a rotating disk (6011). The motor (608) drives the rotating disk (6011) to rotate through the main turntable (609) and a belt transmission assembly. The rotating brush (6012) is fixed between the rotating disks (6011).

8. The photovoltaic panel cleaning drone roller brush adjustment device according to claim 1, characterized in that, It also includes a PLC controller, which is electrically connected to the first hydraulic traction rod (302), the second hydraulic traction rod (305), the first adjusting hydraulic telescopic rod (402), the second adjusting hydraulic telescopic rod (403), the servo motor (602), the motor (608), and the electric telescopic rod (6014) to coordinate and control the actions of each component.

9. The photovoltaic panel cleaning drone brush adjustment device according to claim 1, characterized in that, The surfaces of the roller brush (508) and / or the rotating roller brush (6012) are covered with a flexible cleaning material to accommodate cleaning of the photovoltaic panel surface and avoid scratches.

10. The photovoltaic panel cleaning drone roller brush adjustment device according to claim 1, characterized in that, The UAV body (1) is equipped with a battery, which powers the pulling mechanism (3), the adjusting mechanism (4), the shock absorption mechanism (5), the angle adjusting mechanism (6) and the PLC controller.

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