Transmission damping photovoltaic cleaning robot

Abstract

The utility model relates to a photovoltaic cleaning robot capable of achieving transmission and damping, which comprises a frame body unit, a driving unit, a driving unit and a driving unit, and is characterized in that the frame body unit comprises trusses and vertical frames perpendicular to the trusses; the transmission unit comprises a power part, at least two transmission shafts and a conversion shaft, and the conversion shaft is arranged between the two adjacent transmission shafts; the damping unit comprises an auxiliary wheel and a damping piece arranged above the auxiliary wheel, and the auxiliary wheel is connected with the truss through the damping piece. According to the photovoltaic cleaning equipment with an overlong transmission shaft of the rolling brush, sectional type conversion connection is adopted, on one hand, deformation of the rolling brush caused by the overlong transmission shaft can be effectively reduced, on the other hand, breakage caused by vibration of a panel due to the overlong size of an integrated transmission shaft can be avoided, meanwhile, a damping system is arranged at the position of a conversion shaft, and the service life of the photovoltaic cleaning equipment is prolonged. The photovoltaic cleaning equipment can effectively adapt to height changes of splicing seams between photovoltaic assemblies, the transmission shaft is prevented from being twisted and deformed at the splicing positions of photovoltaic panels, and the overall stability and the use efficiency of the photovoltaic cleaning equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cleaning equipment, in particular to a photovoltaic cleaning robot with drive and shock absorption functions. Background Art

[0002] A photovoltaic module is a power generation device that generates direct current when exposed to sunlight, mainly composed of solar cell modules. Since most photovoltaic power stations are located in remote areas with harsh natural environments, the photovoltaic modules need to withstand wind, rain, sand, dust, and snow in the wild for a long time and need to be cleaned and maintained regularly. At the same time, due to the huge floor area of photovoltaic power stations, the existing ash cleaning modes using manual labor and water trucks are costly, and it is necessary to use photovoltaic cleaning robots to clean the surfaces of photovoltaic panels.

[0003] Existing photovoltaic modules are often assembled from multiple photovoltaic panels, and the width of some modules reaches more than 5 meters, which poses requirements for the length of the components that drive the roller brush or scraper in the cleaning power system of the cleaning robot. However, in the prior art, a single-axis rotating shaft that is too long will cause the roller brush to bend during operation, and the cleaning robot is prone to vibrate in the direction perpendicular to the photovoltaic panel, resulting in the middle walking auxiliary wheel disengaging from the photovoltaic panel, and the pressure of the upper wheel body on the photovoltaic panel becomes larger, leading to risks such as the breakage of the photovoltaic panel. In addition, when the rotating shaft of the walking auxiliary wheel is too long, it cannot effectively adapt to the height change of the splicing seam between photovoltaic modules (such as some photovoltaic panels being warped), and it is difficult to play a shock absorption and buffering role, which also causes excessive local stress on the photovoltaic panel at the upper wheel body, and the photovoltaic panel is easily broken. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and the title of the specification of this application, to avoid obscuring the purpose of this part, the abstract, and the title of the utility model, but such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the problems of bending deformation caused by the excessive length of the roller brush transmission components of the existing photovoltaic cleaning equipment and the vibration and breakage of the panel caused by the height difference of the panel splicing seam, the present utility model is proposed.

[0006] To solve the above technical problems, the present utility model provides the following technical solutions: A photovoltaic cleaning robot with drive and shock absorption functions, comprising a frame unit, including a truss and a vertical frame perpendicular to the truss; a transmission unit, including a power component, a transmission shaft, and a conversion shaft, at least two transmission shafts are provided, and the conversion shaft is arranged between two adjacent transmission shafts; a shock absorption unit, including an auxiliary wheel and a shock absorption component arranged above the auxiliary wheel, and the auxiliary wheel is connected to the truss through the shock absorption component.

[0007] As a preferred embodiment of the photovoltaic cleaning robot capable of transmission and shock absorption according to the present utility model, wherein: the conversion shaft is connected to the truss through a conversion plate, conversion blocks are arranged on both sides of the conversion shaft along the axial direction, and the conversion shaft is connected to the transmission shaft through the conversion blocks.

[0008] As a preferred embodiment of the photovoltaic cleaning robot capable of transmission and shock absorption according to the present utility model, wherein: concave blocks and convex blocks for connection are respectively arranged on the conversion block and the transmission shaft, and the concave blocks and the convex blocks are connected through insertion blocks.

[0009] As a preferred embodiment of the photovoltaic cleaning robot capable of transmission and shock absorption according to the present utility model, wherein: the shock absorption member includes a shock absorption rod, an elastic member and a shock absorption plate, a connection hole is formed in the shock absorption plate, the shock absorption rod is inserted into the connection hole, the elastic member is sleeved on the shock absorption rod and abuts against the inner side wall of the connection plate.

[0010] As a preferred embodiment of the photovoltaic cleaning robot capable of transmission and shock absorption according to the present utility model, wherein: there are at least one shock absorption rod, and the elastic members sleeved thereon are all adapted to the shock absorption rods.

[0011] As a preferred embodiment of the photovoltaic cleaning robot capable of transmission and shock absorption according to the present utility model, wherein: a bottom plate connected to the auxiliary wheel is arranged below the shock absorption plate, at least one group of the bottom plates is provided, the lower part of the shock absorption rod passes through the connection hole and is connected to the bottom plate, and the auxiliary wheels are arranged between the bottom plates and are connected through bearings.

[0012] As a preferred embodiment of the photovoltaic cleaning robot capable of transmission and shock absorption according to the present utility model, wherein: a gasket is arranged on the shock absorption plate, the gasket is sleeved on the outer side wall of the shock absorption rod, and the end of the elastic member abuts against the gasket.

[0013] As a preferred embodiment of the photovoltaic cleaning robot capable of transmission and shock absorption according to the present utility model, wherein: the power member includes a driving motor, a roller brush motor, a driving wheel and a traveling wheel, and the axial directions of the driving wheel and the traveling wheel are perpendicular to each other.

[0014] As a preferred embodiment of the photovoltaic cleaning robot capable of transmission and shock absorption according to the present utility model, wherein: the number of the vertical frames is 2, which are respectively arranged at both ends of the truss.

[0015] Advantages of the present utility model: For a photovoltaic cleaning device with an overly long brush roll drive shaft, the present utility model adopts a segmented conversion connection. On the one hand, it can effectively reduce the deformation of the brush roll caused by the overly long drive shaft. On the other hand, it can avoid the breakage caused by the vibration of the panel due to the overly long size of the integral drive shaft. At the same time, a shock absorption system is provided at the conversion shaft, which can effectively adapt to the height change of the splicing seam between photovoltaic modules, avoid the torsional deformation of the drive shaft at the splicing of photovoltaic panels, and increase the overall stability and service efficiency of the photovoltaic cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0017] Figure 1 It is a schematic diagram of the usage scenario of the photovoltaic cleaning robot with drivable shock absorption of the present utility model.

[0018] Figure 2 It is a schematic diagram of the bottom of the frame structure of the photovoltaic cleaning robot with drivable shock absorption of the present utility model.

[0019] Figure 3 It is a partial bottom schematic diagram of the photovoltaic cleaning robot with drivable shock absorption of the present utility model.

[0020] Figure 4 It is an exploded schematic diagram of the rotating shaft and conversion shaft of the photovoltaic cleaning robot with drivable shock absorption of the present utility model.

[0021] Figure 5 It is a schematic diagram of the shock absorption member of the photovoltaic cleaning robot with drivable shock absorption of the present utility model.

[0022] Figure 6 It is an exploded schematic diagram of the shock absorption member of the photovoltaic cleaning robot with drivable shock absorption of the present utility model.

[0023] Figure 7 It is a schematic diagram of the shock absorption member of the photovoltaic cleaning robot with drivable shock absorption of the present utility model.

[0024] Figure 8 It is a schematic diagram of the shock absorption member of the photovoltaic cleaning robot with drivable shock absorption of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will give a detailed description of the specific embodiments of the present utility model in conjunction with the drawings of the specification.

[0026] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Those skilled in the art may make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0027] Secondly, the so-called "one embodiment" or "embodiment" refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or alternative embodiment that is mutually exclusive with other embodiments.

[0028] Thirdly, the present utility model is described in detail in conjunction with the schematic diagrams. When detailing the embodiments of the present utility model, for the sake of illustration, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0029] Embodiment

[0030] Referring to Figures 1 to 8 , which is the first embodiment of the present utility model, there is provided a photovoltaic cleaning robot capable of transmission and shock absorption. The frame unit 100 includes a truss 101 and a vertical frame 102 perpendicular to the truss 101; the transmission unit 200 includes a power member 201, a transmission shaft 202, and a conversion shaft 203. At least two transmission shafts 202 are provided, and the conversion shaft 203 is disposed between two adjacent transmission shafts 202; the shock absorption unit 300 includes an auxiliary wheel 301 and a shock absorber 302 disposed above the auxiliary wheel 301. The auxiliary wheel 301 is connected to the truss 101 through the shock absorber 302.

[0031] For photovoltaic cleaning equipment, it mainly cleans the residual dust and debris on the photovoltaic panel through a high-speed rotating brush. The brush is mainly driven by a brush motor, and the movement of the cleaning equipment is driven by a driving motor to drive the driving wheels. For some photovoltaic panels, since they are composed of multiple pieces and the width exceeds 5 meters, it is necessary to segment and convert the brush transmission shaft 202.

[0032] Such as Figure 2As shown in the figure, the main body of the cleaning device includes a frame unit 100 arranged on the outside, including a truss 101 spanning on the photovoltaic panel. The truss 101 is a frame structure with a hollowed-out device in the middle part. Vertical frames 102 are arranged at both ends of the truss 101. The vertical frames 102 are perpendicular to the truss 101. The roller brush is arranged parallel to the lower part of the truss 101. The high-speed rotation of the roller brush is driven by the high-speed rotation of the transmission shaft 202. As shown in the figure, adjacent two transmission shafts 202 are connected by a conversion shaft 203. In this way, based on the same power drive, the transmission shafts 202 can rotate synchronously, and then drive the roller brush to rotate to achieve the cleaning function.

[0033] Furthermore, for the transmission cooperation between the transmission shaft 202 and the conversion shaft 203, as Figures 2 to 4 shown, one or more conversion shafts 203 can be provided, which are determined according to the actual span length of the roller brush. The conversion shaft 203 is connected to the truss 101 through a conversion plate 204. The conversion plate 204 is arranged under the truss 101. Conversion blocks 203a are arranged on both sides of the conversion shaft 203 along the axial direction. The conversion shaft 203 is mainly used to convert and connect the left and right transmission shafts 202, that is, one side of the transmission shaft 202 is connected through the conversion block 203a. Concave blocks 203b and convex blocks 202a for connection are respectively arranged on the conversion block 203a and the transmission shaft 202. As shown in the figure, the concave block 203b and the convex block 202a are connected by a plug-in block 202b. Since the roller brush is sleeved on the circumference of the transmission shaft 202, in order to facilitate the installation of the plug-in block 202b, the roller brush needs to reserve an installation hole. The concave block 203b and the convex block 202a form a preliminary connection through the concave-convex shape, and then the plug-in block 202b is used for fixation, which is convenient for installation and disassembly and does not affect the safety and stability of transmission.

[0034] The shock-absorbing member 302 includes a shock-absorbing rod 302a, an elastic member 302b and a shock-absorbing plate 302c. A connection hole 302d is opened on the shock-absorbing plate 302c. The shock-absorbing rod 302a is inserted into the connection hole 302d. The elastic member 302b is sleeved on the shock-absorbing rod 302a and abuts against the inner side wall of the shock-absorbing plate 302c. A bottom plate 302e connected to the auxiliary wheel 301 is arranged below the shock-absorbing plate 302c. At least one group of bottom plates 302e is provided. The lower part of the shock-absorbing rod 302a passes through the connection hole 302d and is connected to the bottom plate 302e. The auxiliary wheel 301 is arranged between the bottom plates 302e and is connected through a bearing.

[0035] Furthermore, as Figure 1 shown, for the shock-absorbing unit 300, it is mainly used for buffering and shock absorption, that is, when the auxiliary wheel 301 moves for cleaning on the photovoltaic panel, when there is a height difference below the auxiliary wheel 301, it is buffered by the shock-absorbing member 302 to ensure the stability of the main body of the cleaning robot. Specifically, as Figure 5 and Figure 6As shown, the shock absorber includes a shock absorber rod 302a, an elastic member 302b, and a shock absorber plate 302c. The shock absorber plate 302c is connected to the truss 101. A connection hole 302d is provided on the shock absorber plate 302c. The shock absorber rod 302a passes through the connection hole 302d and both ends thereof protrude. For the elastic member 302b, a spring can be selected. The elastic member 302b is sleeved on the shock absorber rod 302a. At the same time, as Figure 6 shown, the elastic member 302b is located inside the shock absorber plate 302c, and the upper end thereof abuts against the inner wall of the shock absorber plate 302c. In addition, a bottom plate 302e connected to the auxiliary wheel 301 is provided below the shock absorber plate 302c. At least one group of bottom plates 302e is provided, including two vertical plates arranged in parallel, and the two vertical plates are connected by a cross plate. The lower part of the shock absorber rod 302a passes through the connection hole 302d and is connected to the bottom plate 302e. Specifically, the lower part of the shock absorber rod 302a is connected to the cross plate of the bottom plate 302e. The auxiliary wheel 301 is arranged between the bottom plates 302e and is connected by a bearing, that is, the auxiliary wheel 301 is arranged between the two vertical plates of the bottom plate 302e.

[0036] To maintain the stability of the elastic member 302b, a gasket 302f is provided on the shock absorber plate 302c. As Figure 5 and Figure 6 shown, the gasket 302f is sleeved on the outer wall of the shock absorber rod 302a, and the end of the elastic member 302b abuts against the gasket 302f, that is, one side of the gasket 302f abuts against the elastic member 302b, and the other side abuts against the inner wall of the shock absorber plate 302c.

[0037] It should be noted that there is no less than one shock absorber rod 302a, and an elastic member 302b sleeved thereon is adapted to each shock absorber rod 302a. As Figure 7 and Figure 8 shown, an elastic member 302b is provided on the shock absorber rod 302a. For the shock absorber rod 302a and the bottom plate 302e, at least one shock absorber rod 302a is provided on one bottom plate 302e. The appropriate number of shock absorber rods 302a can be determined by comprehensively considering the elastic coefficient of the elastic member 302b and the mass of the equipment. Similarly, for the bottom plate 302e, at least one group is provided, and one or more shock absorber rods 302a can be provided on each group of bottom plates 302e, and at least one auxiliary wheel 301 is provided between the two vertical plates of each group of bottom plates 302e. As Figure 5 、 7 、8 shown, one or two auxiliary wheels 301 can be provided according to the actual situation.

[0038] When the auxiliary wheel 301 moves upward due to an obstacle (height difference), it will drive the bottom plate 302e to move together. Since the shock-absorbing rod 302a is fixedly connected to the bottom plate 302e, when the bottom plate 302e moves upward, the shock-absorbing rod 302a will move simultaneously. Since both ends of the elastic member 302b are restricted, when the shock-absorbing rod 302a moves upward, the elastic member 302b is compressed to store elastic potential energy. When the auxiliary wheel 301 crosses the obstacle (the height difference disappears), due to the action of the elastic potential energy of the elastic member 302b, at this time, the shock-absorbing rod 302a will move downward together with the auxiliary wheel 301, so that the auxiliary wheel 301 moves on the photovoltaic panel again. During the process of the elastic member 302b being compressed to store elastic potential energy and the elastic potential energy being released to restore its original state, the photovoltaic cleaning device realizes buffering and shock absorption.

[0039] The power member 201 includes a driving motor 201a, a brush motor 201b, a driving wheel 201c, and a walking wheel 201d. The axial directions of the driving wheel 201c and the walking wheel 201d are perpendicular to each other. The number of vertical frames 102 is 2, which are arranged separately at both ends of the truss 101.

[0040] For a photovoltaic cleaning robot, its movement and cleaning are mainly realized by the power member 201. The power member 201 includes a driving motor 201a and a brush motor 201b. Among them, the driving motor 201 mainly provides power for the driving wheel 201c to ensure the movement and walking of the cleaning robot. The driving motor 201a is a prior art, and a motor with a rated voltage of 24V and a rated current of 3A can be used. The torque should be no less than 5N-m, and the rotational speed should be guaranteed to be 60 |min or above. The brush motor 201b mainly drives the transmission shaft 202 to rotate. Since the brush is sleeved outside the transmission shaft 202, when the transmission shaft 202 rotates, the brush will also rotate accordingly to achieve cleaning. For the brush motor 201b, a motor with a rated voltage of 24V and a rated current of 4A can be used. The rotational torque should be no less than 2.5N-m, and the rotational speed is 16060 |min, as Figure 1 and Figure 2 As shown, the driving motor 201a is connected to the driving wheel 201c. The driving wheel 201c moves along the upper side wall of the photovoltaic panel, and the walking wheel 201d moves along the photovoltaic panel. That is, the axial directions of the driving wheel 201c and the walking wheel 201d are perpendicular to each other. For the overall frame, the number of vertical frames 102 is 2. The two vertical frames 102 are connected by a truss 101. The truss 101 and the vertical frame 102 are detachably connected, such as by screws.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A photovoltaic cleaning robot capable of transmission and shock absorption, characterized in that: Including, A frame unit (100), including a truss (101) and a vertical frame (102) perpendicular to the truss (101); A transmission unit (200), including a power member (201), a transmission shaft (202) and a conversion shaft (203), at least two transmission shafts (202) are provided, and the conversion shaft (203) is arranged between two adjacent transmission shafts (202); A shock absorption unit (300), including an auxiliary wheel (301) and a shock absorber (302) arranged above the auxiliary wheel (301), and the auxiliary wheel (301) is connected to the truss (101) through the shock absorber (302).

2. The drivable shock-absorbing photovoltaic cleaning robot according to claim 1, characterized in that: The conversion shaft (203) is connected to the truss (101) through a conversion plate (204), conversion blocks (203a) are arranged on both sides of the conversion shaft (203) along the axial direction, and the conversion shaft (203) is connected to the transmission shaft (202) through the conversion blocks (203a).

3. The drivable shock-absorbing photovoltaic cleaning robot according to claim 2, wherein: Concave blocks (203b) and convex blocks (202a) for connection are respectively arranged on the conversion blocks (203a) and the transmission shaft (202), and the concave blocks (203b) and the convex blocks (202a) are connected through plug-in blocks (202b).

4. The drivable and shock-absorbing photovoltaic cleaning robot according to any one of claims 1-3, characterized in that: The shock absorber (302) includes a shock absorption rod (302a), an elastic member (302b) and a shock absorption plate (302c), a connection hole (302d) is formed on the shock absorption plate (302c), the shock absorption rod (302a) is inserted into the connection hole (302d), and the elastic member (302b) is sleeved on the shock absorption rod (302a) and abuts against the inner side wall of the shock absorption plate (302c).

5. The drivable and shock-absorbing photovoltaic cleaning robot according to claim 4, characterized in that: There is no less than one shock absorption rod (302a), and the elastic members (302b) sleeved are all adapted on the shock absorption rods (302a).

6. The drivable shock-absorbing photovoltaic cleaning robot according to claim 4, characterized in that: A bottom plate (302e) connected to the auxiliary wheel (301) is arranged below the shock absorption plate (302c), at least one group of the bottom plates (302e) is provided, the lower part of the shock absorption rod (302a) passes through the connection hole (302d) and is connected to the bottom plate (302e), and the auxiliary wheel (301) is arranged between the bottom plates (302e) and is connected through a bearing.

7. The drivable shock-absorbing photovoltaic cleaning robot according to claim 6, wherein: A gasket (302f) is arranged on the shock absorption plate (302c), the gasket (302f) is sleeved on the outer side wall of the shock absorption rod (302a), and the end of the elastic member (302b) abuts against the gasket (302f).

8. The drivable shock-absorbing photovoltaic cleaning robot according to claim 1, characterized in that: The power member (201) includes a driving motor (201a), a roller brush motor (201b), a driving wheel (201c) and a walking wheel (201d), and the axial directions of the driving wheel (201c) and the walking wheel (201d) are perpendicular to each other.

9. The drivable and shock-absorbing photovoltaic cleaning robot according to claim 1, wherein: The number of the vertical frames (102) is 2, and they are respectively arranged at both ends of the truss (101).

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