A device for automatically adjusting the tightness of a chain

Abstract

The utility model discloses a device for automatically adjusting the tightness of a chain, which is used for adjusting a photovoltaic panel cleaning robot. The photovoltaic panel cleaning robot includes a frame, a driving body and a cleaning roller. The driving body is arranged on both sides of the frame, and the cleaning roller is connected to the driving body through an adapter plate. The utility model installs a driving shaft and a driven shaft in a receiving groove, and drives the sprockets on the driving shaft and the driven shaft to rotate through a chain, so as to drive the driven shaft, thereby driving the cleaning roller to rotate and realize automatic cleaning. Compared with the prior art, the utility model adopts a receiving groove arranged on an adapter plate, which can realize the sealing of the chain and the sprocket, and regular oiling can increase the service life of the chain. Moreover, an adjusting wheel and a frame are arranged in the receiving groove, and the torsion spring on the frame can be used to automatically adjust the torsion of the torsion spring according to the angle of the chain droop, so as to adjust the angle of the bracket, thereby adjusting the tightness of the chain. The utility model has a simple structure and is convenient and quick to install.

Description

Technical Field

[0001] The utility model relates to the technical field of chain tension adjustment, and more specifically, to a device for automatically adjusting the tension of a chain. Background Art

[0002] Photovoltaic panels, also known as solar panels, will inevitably accumulate dust and be soiled by birds and insects when working outdoors, which will greatly reduce the efficiency of photovoltaic panels or cause them to be damaged. The working environment of outdoor manual cleaning is poor. Cleaners often need to walk under the scorching sun, carry heavy equipment, and trek between rocks or high-rise buildings. The labor intensity and safety issues are worrying.

[0003] At the current stage of the development of the photovoltaic power generation industry, photovoltaic panel cleaning equipment, as an important component, has also developed along with the industry for some time. At present, there are many styles of photovoltaic cleaning equipment on the market. Generally speaking, it is necessary to consider various aspects such as the basic situation of the power station, the length of the photovoltaic string, and whether the arrangement is neat.

[0004] The tracks of existing photovoltaic panel cleaning robots are prone to falling off or the tracks on both sides of the robot are inconsistently tight due to the large temperature difference in the environment in which they are used, the different tightness of new and old tracks, and the softening and elongation of tracks after long-term use.

[0005] In order to solve the above problems, some manufacturers use chains for transmission. Although the chain can resist the expansion and contraction deformation caused by the ambient temperature difference, when used for a long time, the chain will also change in length due to its operation, thus causing the problem of running teeth.

[0006] Therefore, it is necessary to propose a device for automatically adjusting the tightness of the chain to solve the above-mentioned problem. Utility Model Content

[0007] The utility model provides a device for automatically adjusting the tightness of a chain, so as to solve the problem that the chain used in the existing photovoltaic panel cleaning robot is prone to tooth jamming.

[0008] According to one aspect of the utility model, a device for automatically adjusting the tightness of a chain is provided, which is used for adjusting a photovoltaic panel cleaning robot. The photovoltaic panel cleaning robot comprises a frame, a driving body and a cleaning roller, the driving body being arranged on both sides of the frame, the cleaning roller and the driving body being connected via an adapter plate, a receiving groove being arranged in the adapter plate, a driving shaft and a driven shaft being arranged in the receiving groove, sprockets being respectively provided on the driving shaft and the driven shaft, and a chain being wound between the sprockets, the device for automatically adjusting the tightness of the chain comprises a frame mounted in the receiving groove and an adjusting wheel, the frame is U-shaped, an end of the frame is mounted in the receiving groove via a mounting shaft, the adjusting wheel is mounted at the opening of the frame, and a torsion spring is mounted on the mounting shaft, one of the free ends of the torsion spring abuts against the bottom of the frame, and the other end of the torsion spring abuts against the limiting column in the receiving groove.

[0009] Preferably, based on the above solution, the cleaning roller comprises a mounting shaft and cleaning brushes, and the cleaning brushes are evenly installed on the mounting shaft in a ring shape.

[0010] Preferably, based on the above solution, the frame is arranged at the lower part of the chain, and the adjusting wheel is engaged with the chain of the return stroke.

[0011] Preferably, based on the above solution, weight-reducing holes are provided on the adapter plate.

[0012] The utility model discloses a device for automatically adjusting the tightness of a chain. A receiving groove is arranged on an adapter plate, a driving shaft and a driven shaft are installed in the receiving groove, and the sprockets on the driving shaft and the driven shaft are driven to rotate by the chain, so as to drive the driven shaft, thereby driving the cleaning roller to rotate and realize automatic cleaning. Compared with the prior art, the utility model adopts the receiving groove arranged on the adapter plate to achieve the sealing of the chain and the sprocket, and regular oiling can increase the service life of the chain. Moreover, an adjusting wheel and a frame are arranged in the receiving groove. By utilizing the torsion spring on the frame, the torsion of the torsion spring can be automatically adjusted according to the sagging angle of the chain, so as to adjust the angle of the bracket and thus adjust the tightness of the chain. The utility model has a simple structure and is convenient and quick to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of the photovoltaic panel cleaning robot of the present utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the device for automatically adjusting the tightness of a chain of the utility model;

[0016] Figure 3 Another schematic diagram of the device for automatically adjusting the tightness of a chain according to the utility model;

[0017] Figure 4 It is a partial mechanism schematic diagram of the device for automatically adjusting the tightness of a chain of the utility model;

[0018] Description of Figure Numbers:

[0019] Frame 1, driving body 2, cleaning roller 3, mounting shaft 31, cleaning brush 32, adapter plate 4, accommodating groove 41, driving shaft 42, driven shaft 43, sprocket 44, chain 45, frame 46, adjusting wheel 47, mounting shaft 48, torsion spring 49, limiting column 50, weight reduction hole 51, cover plate 52. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections.

[0022] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0023] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0024] In the embodiments shown in the drawings, the directions (such as up, down, left, right, front and back) used to explain the structure and movement of the various components of the present invention are not absolute but relative. These descriptions are appropriate when the components are in the positions shown in the drawings. If the description of the positions of the components changes, the directions also change accordingly.

[0025] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0027] See also Figure 1 , and combined with Figure 2 , Figure 3 and Figure 4 As shown, the utility model is a device for automatically adjusting the tightness of a chain 45, which is used for adjusting a photovoltaic panel cleaning robot. The photovoltaic panel cleaning robot includes a frame 461, a driving body 2 and a cleaning roller 3. The driving body 2 is arranged on both sides of the frame 461. The driving body 2 of the utility model can be a crawler structure or a sprocket 44 structure. In practice, it can be designed according to needs.

[0028] The cleaning roller 3 of the utility model is connected to the driving body 2 through an adapter plate 4, a receiving groove 41 is provided in the adapter plate 4, a driving shaft 42 and a driven shaft 43 are provided in the receiving groove 41, sprockets 44 are respectively installed on the driving shaft 42 and the driven shaft 43, and a chain 45 is wound between the sprockets 44, and in order to prevent the chain 45 from being contaminated with dust during the cleaning process and affecting its service life, a cover plate can be provided at the opening of the receiving groove 41 to achieve its sealing, and the driving shaft 42 and the driven shaft 43 are penetrated by the cover plate.

[0029] The device for automatically adjusting the tightness of the chain 45 of the utility model comprises a frame 461 and an adjusting wheel 47 installed in the receiving groove 41. The frame 461 is U-shaped and is arranged at the lower part of the chain 45, that is, the mounting shaft 4831 is installed at the lower part of the receiving groove 41, and a certain angle is formed between the frame 461 and the chain 45, and the end of the frame 461 is installed in the receiving groove 41 through the mounting shaft 4831, and the adjusting wheel 47 is installed at the opening of the frame 461, and a torsion spring 49 is installed on the mounting shaft 4831, one of the free ends of the torsion spring 49 abuts against the bottom of the frame 461, and the other end of the torsion spring 49 abuts against the limit column 50 in the receiving groove 41, and the adjusting wheel 47 and the chain 45 are meshed with each other.

[0030] The utility model adopts a method of setting a receiving groove 41 on the adapter plate 4, installing a driving shaft 42 and a driven shaft 43 in the receiving groove 41, and driving the sprocket 44 on the driving shaft 42 and the driven shaft 43 to rotate through the chain 45, so as to drive the driven shaft 43, thereby driving the rotation of the cleaning roller 3 to realize its automatic cleaning. Compared with the prior art, the utility model adopts a method of setting a receiving groove 41 on the adapter plate 4, so as to realize the sealing of the chain 45 and the sprocket 44, and regular oiling can increase the service life of the chain 45. In addition, an adjusting wheel 47 and a frame 461 are set in the receiving groove 41. By using the torsion spring 49 on the frame 461, the torsion of the torsion spring 49 can be automatically adjusted according to the sagging angle of the chain 45, so as to adjust the angle of the bracket and thus adjust the tightness of the chain 45. The utility model has a simple structure and is convenient and quick to install.

[0031] like Figure 2 As shown, the cleaning roller 3 of the utility model includes a mounting shaft 4831 and a cleaning brush 32, the cleaning brush 32 is evenly installed on the mounting shaft 4831 in a ring shape, and the mounting shaft 4831 is connected to the driven shaft 43, the frame 461 is arranged at the lower part of the chain 45, and the adjusting wheel 47 is engaged with the return chain 45.

[0032] That is, when the motor drives the driving shaft 42 to rotate, under the action of the chain 45, the sprocket 44 on the driven shaft 43 is driven to rotate, which can drive the installation shaft 4831 to move, realize the rotation of the cleaning brush 32, and realize its automatic cleaning.

[0033] Furthermore, the utility model also provides a weight-reducing hole 51 on the adapter plate 4 .

[0034] Finally, the method of this application is only a preferred implementation scheme and is not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for automatically adjusting the tension of a chain, used for adjusting a photovoltaic panel cleaning robot, the photovoltaic panel cleaning robot comprising a frame, a driving body and a cleaning roller, the driving body being arranged on both sides of the frame, the cleaning roller being connected to the driving body via an adapter plate, a receiving groove being arranged in the adapter plate, a driving shaft and a driven shaft being arranged in the receiving groove, the driving shaft and the driven shaft being respectively provided with sprockets, and a chain being wound between the sprockets, characterized in that: The device for automatically adjusting the tightness of the chain includes a frame body and an adjusting wheel installed in a receiving groove, the frame body is U-shaped, the end of the frame body is installed in the receiving groove through a mounting shaft, the adjusting wheel is installed at the opening of the frame body, and a torsion spring is installed on the mounting shaft, one of the free ends of the torsion spring abuts against the bottom of the frame body, and the other end of the torsion spring abuts against the limiting column in the receiving groove.

2. A device for automatically adjusting the tension of a chain as claimed in claim 1, characterized in that: The cleaning roller comprises a mounting shaft and a cleaning brush, wherein the cleaning brush is evenly arranged on the mounting shaft in a ring shape.

3. A device for automatically adjusting chain tension as claimed in claim 1, characterized in that: The frame is arranged at the lower part of the chain, and the adjusting wheel is engaged with the chain of the return stroke.

4. A device for automatically adjusting the tension of a chain as claimed in claim 1, characterized in that: The adapter plate is provided with weight-reducing holes.

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