Liftable cleaning assembly

Abstract

The utility model relates to a liftable cleaning assembly and relates to the field of mechanical cleaning equipment, in order to solve the problem that a photovoltaic cleaning robot interferes with a driving motor during operation, the liftable cleaning assembly comprises an end box and a rolling brush, the rolling brush is rotatably connected to the end box, the end box is provided with a lifting assembly, the lifting assembly is connected with the rolling brush, and the lifting assembly is connected with the rolling brush. And the rolling brush is controlled to lift at the end box. The situation that the photovoltaic cleaning robot interferes with the driving motor during operation can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mechanical cleaning equipment, in particular to a liftable cleaning assembly. BACKGROUND

[0002] Photovoltaic cleaning robots play an important role in modern solar power generation systems, especially in large-scale photovoltaic power stations. Efficiently cleaning dust and dirt from the surface of photovoltaic panels is crucial to improving photovoltaic power generation efficiency. With the development of technology, the application range of photovoltaic cleaning robots is continuously expanding, covering various application scenarios such as fixed and tracking photovoltaic supports. However, on a specific flat single-axis tracking support, the photovoltaic components need to constantly adjust their angles to follow the movement of the sun throughout the day, which poses a challenge to the normal operation of photovoltaic cleaning robots.

[0003] Photovoltaic cleaning robots face the working condition of following the sun back and forth on a specific flat single-axis tracking support. The drive motor of the tracking system is higher than the plane of the photovoltaic components at a certain time, causing the roller brush of the photovoltaic cleaning robot to interfere with the drive motor during operation, which cannot complete the expected cleaning target, and thus needs to be improved. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the interference between the photovoltaic cleaning robot and the drive motor during operation, the present application provides a liftable cleaning assembly.

[0005] The liftable cleaning assembly provided by the present application adopts the following technical solution:

[0006] A liftable cleaning assembly includes an end box and a roller brush. The end box is provided with a lifting assembly. The lifting assembly is connected to the roller brush to control the lifting of the roller brush at the end box.

[0007] By adopting the above technical solution, when the roller brush is about to interfere with the drive motor, the lifting assembly controls the roller brush to rise and controls the roller brush to reset after passing through the drive motor, realizing the lifting function of the roller brush on the end box, solving the problem of interference between the roller brush and the drive motor caused by the drive motor being higher than the plane of the photovoltaic components in the application of photovoltaic cleaning robots on a specific flat single-axis tracking support, and ensuring the smooth progress of the cleaning work.

[0008] Optionally, the lifting assembly includes a lifting support, a lifting motor, a lifting lead screw, a lifting guide rod, and a lifting connecting frame. The lifting support is installed on the end box. The lifting lead screw and the lifting guide rod are rotationally connected to the lifting support. The lifting motor is installed at the bottom of the lifting support. The drive shaft of the lifting motor is connected to the lifting lead screw. The lifting connecting frame is threadedly connected to the lifting lead screw. The lifting connecting frame is slidingly connected to the lifting guide rod. The lifting connecting frame is connected to the end of the roller brush.

[0009] Optionally, the lifting support is provided with a position reaching switch, which can control the operation of the lifting motor to limit the position of the rolling brush moving in the vertical direction.

[0010] By adopting the above technical scheme, the movement range of the rolling brush in the vertical direction is effectively limited, avoiding the problem of equipment damage or function failure caused by excessive movement, and improving the reliability and safety of the equipment operation. Specifically, the setting of the position reaching switch enables the rolling brush to stop accurately within the predetermined height range, preventing the risk of collision with other components.

[0011] Optionally, the position reaching switch comprises a pressure sensor and a pressure spring, two pressure sensors are installed in the vertical direction, and the two pressure sensors are installed at both ends of the lifting support in the vertical direction, the pressure spring is installed on the pressure sensor and can be in contact with the lifting connecting frame, a controller is installed on the lifting support, the pressure sensor and the lifting motor are electrically connected with the controller, the upper pressure sensor sends the pressure signal to the controller, the controller receives the pressure signal and controls the lifting motor to drive in reverse, the lower pressure sensor sends the pressure signal to the controller, and the controller receives the pressure signal and controls the lifting motor to stop.

[0012] By adopting the above technical scheme, when the rolling brush rises to the preset height, the upper pressure sensor detects the contact between the pressure spring and the lifting connecting frame, transmits the signal to the controller, and the controller controls the lifting motor to drive in reverse, so that the rolling brush descends; when the rolling brush descends to the lowest point, the lower pressure sensor detects the contact between the pressure spring and the lifting connecting frame, transmits the signal to the controller, and the controller controls the lifting motor to stop, ensuring that the rolling brush operates within a safe range and improving the reliability and stability of the equipment.

[0013] Optionally, the pressure spring is inclined, and the two pressure springs above and below are inclined at an obtuse angle.

[0014] By adopting the above technical scheme, the inclination of the pressure spring can effectively reduce the contact area between the pressure spring and the lifting connecting frame, so that the pressure spring is more easily triggered, improving the detection accuracy. At the same time, the two pressure springs above and below are inclined at an obtuse angle, which can more accurately perceive the position change of the lifting connecting frame at different height positions, further improving the stability and reliability of the lifting assembly.

[0015] Optionally, a limiting piece is further arranged on the pressure sensor, the limiting piece is located on the side of the pressure spring away from the lifting connecting frame, and the limiting piece can be in contact with the deformed pressure spring.

[0016] By adopting the technical scheme, when the pressure spring is deformed by the pressure from the lifting connecting frame, the limiting sheet can effectively prevent the pressure spring from over-deformation, ensure the normal work of the pressure sensor, and improve the stability and reliability of the system.

[0017] Optionally, the two pressure sensors are arranged obliquely, and the oblique direction of the pressure sensor is consistent with the oblique direction of the pressure spring on the same side.

[0018] By adopting the technical scheme, the oblique arrangement of the pressure sensor and the consistent oblique direction of the pressure sensor and the pressure spring on the same side can more accurately detect the pressure change when the lifting connecting frame reaches the predetermined position, improve the accuracy and reliability of position detection, ensure the accurate positioning of the roller brush during the lifting process, and avoid equipment failure or poor cleaning effect caused by position detection error.

[0019] Optionally, a shaft coupling is arranged between the roller brush and the lifting connecting frame, and the roller brush is connected to the lifting connecting frame through the shaft coupling.

[0020] By adopting the technical scheme, the arrangement of the shaft coupling makes the connection between the roller brush and the lifting connecting frame more stable and reliable, effectively avoids the loosening phenomenon caused by vibration or impact, and improves the working stability of the cleaning assembly. At the same time, the shaft coupling can also absorb a certain amount of vibration and impact energy, reduce the wear and tear during transmission, and prolong the service life of the roller brush and the lifting connecting frame.

[0021] In summary, the present application has at least one of the following beneficial technical effects:

[0022] 1. When the roller brush is about to interfere with the driving motor, the lifting assembly controls the roller brush to rise and controls the roller brush to reset after passing through the driving motor, realizing the lifting function of the roller brush on the end box, solving the problem of interference between the roller brush and the driving motor caused by the driving motor being higher than the plane of the photovoltaic assembly in the application of the specific flat single-axis tracking support of the photovoltaic cleaning robot, and ensuring the smooth progress of the cleaning work.

[0023] 2. The movement range of the roller brush in the vertical direction is effectively limited, avoiding the problem of equipment damage or function failure caused by excessive movement, and improving the reliability and safety of equipment operation. Specifically, the arrangement of the in-place switch enables the roller brush to stop accurately within a predetermined height range, preventing the risk of collision with other components.

[0024] 3. The arrangement of the shaft coupling makes the connection between the roller brush and the lifting connecting frame more stable and reliable, effectively avoids the loosening phenomenon caused by vibration or impact, and improves the working stability of the cleaning assembly. At the same time, the shaft coupling can also absorb a certain amount of vibration and impact energy, reduce the wear and tear during transmission, and prolong the service life of the roller brush and the lifting connecting frame. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic diagram of a liftable cleaning assembly in an embodiment of the present application.

[0026] Figure 2 is a structural schematic diagram for embodying a lifting assembly in an embodiment of the present application.

[0027] Figure 3 is Figure 2 is an enlarged schematic diagram of A in FIG.

[0028] Reference signs: 1, end box; 2, roller brush; 3, lifting assembly; 31, lifting support; 32, lifting motor; 33, lifting lead screw; 34, lifting guide rod; 35, lifting connecting frame; 351, coupling; 4, in-place switch; 41, pressure sensor; 42, pressure spring; 43, limit piece. DETAILED DESCRIPTION

[0029] The following will be described in detail in combination with the accompanying Figures 1-3 The present application will be further described in detail.

[0030] An embodiment of the present application discloses a liftable cleaning assembly. Referring to Figure 1 and Figure 2 The liftable cleaning assembly comprises an end box 1 and a roller brush 2, the end box 1 is provided with a lifting assembly 3, the lifting assembly 3 is connected with the roller brush 2 to control the lifting of the roller brush 2 at the end box 1. This design solves the problem of interference between the roller brush 2 and the driving motor when the photovoltaic cleaning robot runs on a flat single-axis tracking support, and improves the continuity and efficiency of the cleaning work.

[0031] When the roller brush 2 is about to interfere with the driving motor, the lifting assembly 3 controls the roller brush 2 to rise, and controls the roller brush 2 to reset after passing through the driving motor, thereby realizing the lifting function of the roller brush 2 on the end box 1, solving the problem of interference between the roller brush and the driving motor due to the driving motor being higher than the plane of the photovoltaic assembly in the specific flat single-axis tracking support application, and ensuring the smooth progress of the cleaning work.

[0032] Referring to Figure 1 and Figure 2The lifting assembly 3 comprises a lifting support 31, a lifting motor 32, a lifting screw rod 33, a lifting guide rod 34 and a lifting connecting frame 35. The lifting support 31 is bolted on the end box 1, the lifting screw rod 33 and the lifting guide rod 34 are rotatably connected on the lifting support 31 by bearings, the length direction of the lifting screw rod 33 and the lifting guide rod 34 is vertical, and the lifting screw rod 33 and the lifting guide rod 34 are sequentially arranged in the horizontal direction. The lifting motor 32 is bolted on the bottom of the lifting support 31, and the lifting motor 32 is a brushless reduction motor. The brushless DC motor has the characteristics of high efficiency, long service life and low noise, and is suitable for frequent start-stop working environment.

[0033] The driving shaft of the lifting motor 32 is fixedly connected with the lifting screw rod 33 through the lifting support 31, the lifting connecting frame 35 is threadedly connected on the lifting screw rod 33, and the lifting connecting frame 35 is slidably connected on the lifting guide rod 34. The lifting guide rod 34 provides guidance during the lifting process of the roller brush 2 to prevent the roller brush 2 from deviating. The lifting guide rod 34 can be a smooth stainless steel rod to reduce friction and improve smoothness of movement. When the lifting screw rod 33 rotates, the lifting connecting frame 35 moves along the length direction of the lifting screw rod 33 under the limitation of the lifting guide rod 34.

[0034] The lifting connecting frame 35 is connected with the end of the roller brush 2 through a shaft coupling 351. The shaft coupling 351 can be an elastic shaft coupling, such as a rubber shaft coupling or a spring shaft coupling, to absorb impact and vibration during movement and improve the stability of the roller brush 2. The lifting connecting frame 35 moves along the length direction of the lifting screw rod 33 to drive the roller brush 2 to move up and down to smoothly pass through the driving motor.

[0035] Referring to 2 and Figure 3 A position switch 4 is arranged on the lifting support 31 to limit the length of the roller brush 2 moving in the vertical direction. The position switch 4 comprises two pressure sensors 41 and a pressure spring plate 42. The two pressure sensors 41 are bolted in the vertical direction. In this embodiment, the two pressure sensors 41 are both arranged obliquely, and the two pressure sensors 41 are arranged at an obtuse angle towards the lifting screw rod 33.

[0036] The pressure spring plate 42 is fixed on the pressure sensor 41 by adhesion and can abut against the lifting connecting frame 35. The pressure spring plate 42 is arranged obliquely synchronously according to the oblique direction of the pressure sensor 41. When the obliquely arranged pressure spring plate 42 contacts the lifting connecting frame 35, it can quickly trigger the pressure sensor 41 to timely control the action of the lifting motor 32.

[0037] The limiting sheet 43 is also fixed on the pressure sensor 41 by adhesive, and is located on the side of the pressure spring 42 away from the lifting connecting frame 35, and can abut against the deformed pressure spring 42. The limiting sheet 43 can prevent the pressure spring 42 from being deformed excessively, thereby avoiding the safety hazard caused by the failure of the pressure spring 42. The limiting sheet 43 can be made of hard plastic or metal material, and the specific material selection needs to be determined according to the actual use environment.

[0038] The controller is installed on the lifting support 31, and the pressure sensor 41 and the lifting motor 32 are electrically connected with the controller. When the roller brush 2 needs to be moved, the lifting motor 32 is controlled to start, the lifting motor 32 drives the lifting lead screw 33 to rotate, and the lifting lead screw 33 drives the roller brush 2 to move upwards. When the lifting connecting frame 35 abuts against the upper pressure spring 42, the upper pressure spring 42 gives pressure to the upper pressure sensor 41, the upper pressure sensor 41 sends a pressure signal to the controller after being subjected to the pressure, the controller receives the pressure signal and controls the lifting motor 32 to drive in reverse, the lower pressure sensor 41 sends a pressure signal to the controller, the controller receives the pressure signal and controls the lifting motor 32 to stop, so that the roller brush 2 is kept at the lowest position. In the embodiment, the position of the upper pressure spring 42 is higher than that of the driving motor.

[0039] The implementation principle of the lifting type cleaning assembly in the embodiment is as follows: when the roller brush 2 needs to be moved, the lifting motor 32 is controlled to start, the lifting motor 32 drives the lifting lead screw 33 to rotate, and the lifting lead screw 33 drives the roller brush 2 to move upwards. When the lifting connecting frame 35 abuts against the upper pressure spring 42, the upper pressure spring 42 gives pressure to the upper pressure sensor 41, the upper pressure sensor 41 sends a pressure signal to the controller after being subjected to the pressure, the controller receives the pressure signal and controls the lifting motor 32 to drive in reverse, the lower pressure sensor 41 sends a pressure signal to the controller, the controller receives the pressure signal and controls the lifting motor 32 to stop, so that the roller brush 2 is kept at the lowest position. The lifting function of the roller brush 2 on the end box 1 is realized, the problem of interference between the roller brush and the driving motor caused by the fact that the driving motor is higher than the plane of the photovoltaic assembly in the application of the specific flat single-axis tracking support is solved, and the smooth progress of the cleaning work is ensured.

[0040] The above are the preferred embodiments of the application, and do not limit the protection scope of the application. Therefore, equivalent changes made on the basis of the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A cleanable assembly of the elevatable type comprising an end box (1) and a roller brush (2), characterized in that: The end box (1) is provided with a lifting assembly (3) connected with the rolling brush (2) to control the lifting of the rolling brush (2) at the end box (1).

2. A liftable cleaning assembly according to claim 1, wherein: The lifting assembly (3) comprises a lifting support (31), a lifting motor (32), a lifting screw rod (33), a lifting guide rod (34) and a lifting connecting frame (35), the lifting support (31) is installed on the end box (1), the lifting screw rod (33) and the lifting guide rod (34) are rotatably connected to the lifting support (31), the lifting motor (32) is installed at the bottom of the lifting support (31), the driving shaft of the lifting motor (32) is connected with the lifting screw rod (33), the lifting connecting frame (35) is threadedly connected to the lifting screw rod (33), and the lifting connecting frame (35) is slidably connected to the lifting guide rod (34); the lifting connecting frame (35) is connected with the end of the rolling brush (2).

3. A liftable cleaning assembly according to claim 2, wherein: The lifting support (31) is provided with a position reaching switch (4) capable of controlling the operation of the lifting motor (32) to limit the position of the rolling brush (2) moving in the vertical direction.

4. A liftable cleaning assembly according to claim 3, wherein: The position reaching switch (4) comprises a pressure sensor (41) and a pressure spring plate (42), two pressure sensors (41) are installed in the vertical direction, and the two pressure sensors (41) are respectively installed at the two ends of the lifting support (31) in the vertical direction; the pressure spring plate (42) is installed on the pressure sensor (41) and can abut against the lifting connecting frame (35); the lifting support (31) is provided with a controller, the pressure sensor (41) and the lifting motor (32) are electrically connected with the controller, the upper pressure sensor (41) sends a pressure signal to the controller, the controller receives the pressure signal and controls the lifting motor (32) to drive in reverse, and the lower pressure sensor (41) sends a pressure signal to the controller, the controller receives the pressure signal and controls the lifting motor (32) to stop.

5. A liftable cleaning assembly according to claim 4, wherein: The pressure spring plate (42) is obliquely arranged, and the two pressure spring plates (42) on the upper side and the lower side are obliquely arranged at an obtuse angle.

6. A liftable cleaning assembly according to claim 5, wherein: The pressure sensor (41) is further provided with a limiting piece (43), the limiting piece (43) is located on the side of the pressure spring plate (42) away from the lifting connecting frame (35), and the limiting piece (43) can abut against the deformed pressure spring plate (42).

7. A liftable cleaning assembly according to claim 5, wherein: The two pressure sensors (41) are obliquely arranged, and the oblique direction of the pressure sensor (41) is consistent with the oblique direction of the pressure spring plate (42) on the same side.

8. A liftable cleaning assembly according to claim 2, wherein: A shaft coupling (351) is arranged between the rolling brush (2) and the lifting connecting frame (35), and the rolling brush (2) is connected with the lifting connecting frame (35) through the shaft coupling (351).

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