Docking device and photovoltaic tracker to which it is applicable

Abstract

The application provides a docking device and a photovoltaic tracker suitable for the docking device, and relates to the technical field of photovoltaic girder installation. The docking device is suitable for docking adjacent first and second girders in a photovoltaic tracker, and the first and second girders respectively comprise opposite main and secondary docking ends. The docking device comprises a bottom plate, a first docking part arranged on the bottom plate, the first docking part being suitable for supporting the main docking end of the first girder, the main docking end being suitable for being fixed on the first docking part and extending in a first direction in the first docking part, and a second docking part arranged on the bottom plate, the second docking part being suitable for supporting the secondary docking end of the second girder, and the second docking part comprising a movement mechanism, the movement mechanism being suitable for moving the secondary docking end towards the direction of approaching or moving away from the main docking end.

Description

Technical Field

[0001] This application mainly relates to the field of photovoltaic main beam installation technology, and in particular to a docking device and a photovoltaic tracker applicable thereto. Background Technology

[0002] As one of the three major steel structure components in a photovoltaic (PV) tracker, the main beam, supported by columns, bears the purlins and PV modules. It withstands bending moments, shear forces, and torques, resulting in a complex stress distribution. Furthermore, multiple main beams are connected sequentially in a PV tracker, with a total length typically ranging from tens to over one hundred meters. The strength, adjustability, and installability of the splicing nodes between adjacent main beams are all crucial.

[0003] Currently, the tube-reduction method is a reliable way to connect main beams. However, existing tube-reduction main beams lack specific installation tools, and the installation process is often haphazard, leading to high construction risks and low installation efficiency. Utility Model Content

[0004] The technical problem to be solved by this application is to provide a docking device and a photovoltaic tracker applicable thereto, which can efficiently and conveniently dock adjacent main beams in the photovoltaic tracker, and facilitate installation by means of a tube shrinking method.

[0005] To address the aforementioned technical problems, this application provides a docking device suitable for docking adjacent first and second main beams in a photovoltaic tracker. The first and second main beams each include a primary docking end and a secondary docking end. The docking device includes: a base plate; a first docking portion disposed on the base plate, adapted to support the primary docking end of the first main beam, the primary docking end being adapted to be fixed to the first docking portion, the primary docking end extending along a first direction in the first docking portion; and a second docking portion disposed on the base plate, adapted to support the secondary docking end of the second main beam, the second docking portion including a motion mechanism adapted to move the secondary docking end toward or away from the primary docking end.

[0006] Optionally, the first docking part includes: a support platform, fixedly connected to the base plate, the support platform being adapted to support the main docking end and conform to the bottom surface of the main docking end; and a position adjustment plate, disposed on the support platform, the position adjustment plate extending along a first direction, the position adjustment plate being adapted to conform to the side of the main docking end.

[0007] Optionally, the motion mechanism includes: a first bracket, fixedly connected to the base plate, with a plurality of first through holes on both sides of the first bracket; a plurality of first rollers, arranged sequentially along a first direction, each first roller including a first shaft, with both ends of the first shaft passing through the first through holes on both sides of the first bracket; the first roller is adapted to support the secondary docking end and to drive the secondary docking end closer to or away from the main docking end by rotating itself; wherein the first shaft extends along a second direction, which is perpendicular to the first direction.

[0008] Optionally, one of the first rollers is an active roller, and the motion mechanism further includes: a drive module, which is fixedly connected to the first roller shaft of the active roller, and the drive module is adapted to drive the active roller to rotate; a plurality of first pulleys, each of the first pulleys being sleeved on one end of each of the first roller shafts; and a first synchronous belt, which is sleeved on each of the first pulleys, and the first synchronous belt is adapted to make each of the first pulleys rotate synchronously.

[0009] Optionally, the second docking part further includes an auxiliary docking mechanism, which includes: two second brackets, which are fixedly connected to the opposite sides of the first bracket, and each side of the second bracket has a plurality of corresponding second through holes; a plurality of second rollers, each second roller including a second roller shaft, the two ends of which pass through the second through holes on both sides of the second bracket, and the second rollers are adapted to adjust the position of the secondary docking end. In this case, each second roller in each second bracket is arranged sequentially along a first direction, and the second roller shaft extends along a third direction, which is perpendicular to the plane formed by the first direction and the second direction.

[0010] Optionally, the motion mechanism further includes: at least one first transmission gear, which is sleeved on the first roller; at least one second transmission gear, which is sleeved on the first roller; and the auxiliary docking mechanism further includes: at least one third transmission gear, which is sleeved on the second roller in a second bracket and meshes with the first transmission gear; and at least one fourth transmission gear, which is sleeved on the second roller in another second bracket and meshes with the second transmission gear.

[0011] Optionally, the auxiliary docking mechanism further includes: a plurality of second pulleys, each second pulley being sleeved on one end of each second roller; and two second synchronous belts, each sleeved on one of the second pulleys in the two second supports, the second synchronous belts being adapted to make each sleeved second pulley rotate synchronously.

[0012] Optionally, it also includes: a telescopic support, which is fixedly connected to the base plate and is adapted to support the base plate and adjust the height of the base plate relative to the ground.

[0013] To address the aforementioned technical problems, this application provides a photovoltaic tracker, comprising: at least two main beams, the at least two main beams including an adjacent first main beam and a second main beam, the first main beam and the second main beam respectively including a primary docking end and a secondary docking end, wherein at least the primary docking end of the first main beam is adapted to dock with the secondary docking end of the second main beam through the aforementioned docking device.

[0014] Optionally, the main docking end and the secondary docking end have multiple corresponding through fastening holes, and the photovoltaic tracker also includes multiple fasteners adapted to pass through the corresponding first fastening hole and second fastening hole after docking.

[0015] Optionally, the surface of the main beam has an anti-corrosion coating.

[0016] Compared with the prior art, this application has the following advantages: on the one hand, the main docking end of the first main beam is supported by the first docking part and the main docking end extends along the first direction in the first docking part; on the other hand, the secondary docking end of the second main beam is supported by the second docking part and the secondary docking end moves towards or away from the main docking end, thereby efficiently and conveniently realizing the docking between adjacent main docking ends and secondary docking ends. Attached Figure Description

[0017] The accompanying drawings are included to provide a further understanding of this application; they are incorporated into and constitute a part of this application. The drawings illustrate embodiments of this application and, together with this specification, serve to explain the principles of this application. In the drawings:

[0018] Figure 1 This is a partial structural schematic diagram of a photovoltaic tracker according to an embodiment of this application;

[0019] Figure 2 yes Figure 1 Structural diagram of the main beam;

[0020] Figure 3 This is a schematic diagram of the structure of a docking device according to an embodiment of this application;

[0021] Figure 4 yes Figure 3 Structural diagram of the mid-base plate, the first docking section, and the second docking section;

[0022] Figure 5 yes Figure 3 Schematic diagram of the structure of the second docking section;

[0023] Figure 6 yes Figure 5 A partial structural diagram of the second docking section;

[0024] Figure 7 yes Figure 1 The first and second main beams adopt Figure 3 A schematic diagram showing that the docking device has not completed docking; and

[0025] Figure 8 yes Figure 1 The first and second main beams adopt Figure 3 A schematic diagram showing the docking device completing the docking. Detailed Implementation

[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0027] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not specifically singular and may include plural forms. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0029] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0030] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0031] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In addition, although the terminology used in this application is selected from commonly known and used terms, some terms mentioned in this application's specification may have been chosen by the applicant according to his or her judgment, and their detailed meanings are explained in the relevant sections of this description. Moreover, this application should be understood not only through the actual terms used, but also through the meaning implied by each term.

[0032] It should be understood that when a component is referred to as "on another component," "connected to another component," "coupled to another component," or "in contact with another component," it can be directly on, connected to, coupled to, or in contact with that other component, or there may be an intervening component. In contrast, when a component is referred to as "directly on another component," "directly connected to," "directly coupled to," or "directly in contact with" another component, there is no intervening component. Similarly, when a first component is referred to as "electrically contacting" or "electrically coupled to" a second component, there is an electrical path between the first and second components that allows current to flow. This electrical path may include capacitors, coupled inductors, and / or other components that allow current to flow, even if there is no direct contact between the conductive components.

[0033] Figure 1 This is a partial structural schematic diagram of a photovoltaic tracker 100 according to an embodiment of this application. Figure 1As shown, the photovoltaic tracker 100 includes multiple main beams 11, multiple columns 12, multiple bearings 13, at least one actuator (not shown), and multiple fasteners 14. In this embodiment, the multiple main beams 11 are connected sequentially along a first direction x-x'. It should be noted that this application does not limit the number of main beams in the photovoltaic tracker; in some embodiments, there are two or more main beams. The main beams 11 are adapted to pass through the bearings 13 and to support purlins and photovoltaic modules. In this embodiment, the surface of the main beams 11 has an anti-corrosion coating to make the main beams 11 corrosion-resistant and improve their service life. In this embodiment, one end of the column 12 is fixedly connected to the ground, and the other end of the column is fixedly connected to the bearing 13. It should be noted that this application does not limit the specific type of ground; in some embodiments, the ground is any fixed object with a fixing function. The bearings 13 are adapted to allow the main beams 11 supported by the columns 12 to rotate freely. The actuator is adapted to rotate the main beams 11 so that the photovoltaic modules supported by the main beams 11 are at a preset angle to the sunlight. Understandably, the column, bearing, and actuator are not the focus of this application and are the same as conventional setups, so they will not be described in detail here.

[0034] Continue to refer to Figure 2 The main beam 11 includes a main docking end 111, a secondary docking end 112, and a main beam body 113. Both ends of the main beam body 113 are fixedly connected to the main docking end 111 and the secondary docking end 112, respectively. In this embodiment, the main beam 11 can be integrally formed. In this embodiment, the main docking end 111 and the secondary docking end 112 are in a tube-shrinkage manner; specifically, the diameter of the secondary docking end 112 is smaller than the diameter of the main docking end 111, allowing the secondary docking end 112 to fit inside the main docking end 111. In this embodiment, the cross-sections of the main docking end 111 and the secondary docking end 112 along the direction perpendicular to their own axial extension, i.e., the first direction x-x', are both rounded rectangles, meaning that both the main docking end 111 and the secondary docking end 112 have four pairs of opposite sides. In this embodiment, the main docking end 111 has multiple through first fastening holes 114 on its corresponding sides, and the secondary docking end 112 has multiple through second fastening holes 115 on its corresponding sides. Further refer to... Figure 1 In this embodiment, the fastener 14 is adapted to pass through the corresponding first fastening hole 114 and second fastening hole 115 after docking. That is, after the secondary docking end 112 of one main beam 11 is sleeved with the main docking end 111 of another adjacent main beam, the fastener 14 passes through the second fastening hole 115 of the secondary docking end 112 and the first fastening hole 114 of the main docking end 111 to securely connect the two adjacent main beams 11. In this embodiment, the fastener 14 includes a fastening bolt.

[0035] The structure of the photovoltaic tracker 100 has been briefly described above. Next, the docking device 200 will be described. First, as... Figure 3As shown, the docking device 200 includes a telescopic bracket 21, a base plate 22, a first docking portion 23, and a second docking portion 24. The telescopic bracket 21 is fixedly connected to the base plate 22, and the telescopic bracket 21 is adapted to support the base plate 22 and adjust the height of the base plate 22 relative to the ground. It can be understood that the telescopic bracket 21 can adjust its length along the axial direction (y-y'), thereby changing the relative distance between the base plate 22 and the ground (the support surface supporting the telescopic bracket 21), thus accommodating the docking of two adjacent main beams with different height differences. In this embodiment, the telescopic bracket 21 is hydraulically or electrically driven.

[0036] Continue to refer to Figure 4 The first docking part 23 includes a support platform 231 and a pose adjustment plate 232. The support platform 231 is fixedly connected to the base plate 22. The pose adjustment plate 232 is disposed on the support platform 231 and extends along the first direction x-x'. It should be noted that in this embodiment, the pose adjustment plate 232 is perpendicular to the upper surface of the support platform 231, and the pose adjustment plate 232 and the support platform 231 can be integrally formed. However, this application does not limit the angle formed by the pose adjustment plate 232 and the upper surface of the support platform 231, and in some embodiments, the pose adjustment plate 232 and the support platform 231 are separate designs.

[0037] Continue to refer to Figure 4 The second docking section 24 includes a motion mechanism 241 and an auxiliary docking mechanism 242. Further reference... Figure 5 and Figure 6The motion mechanism 241 includes a first support 31, multiple first rollers 32, a drive module (not shown in the figure), multiple first pulleys 34, a first synchronous belt 35, a first transmission gear 36, and a second transmission gear 37. The first support 31 is fixedly connected to the base plate 22, and each of the opposite sides of the first support 31 has a corresponding multiple first through holes 311. The multiple first rollers 32 are arranged sequentially along a first direction x-x'. Each first roller 32 includes a first roller shaft 321 and a first transmission member 322. The two ends of the first roller shaft 321 pass through the first through holes 311 on opposite sides of the first support 31. In this embodiment, the axial direction of the first roller shaft 321 located in the first support 31 is the second direction z-z', and the second direction z-z' is perpendicular to the first direction x-x'. The first transmission member 322 covers part of the first roller shaft 321. In this embodiment, the first transmission member 322 includes rubber with a high coefficient of friction. In this embodiment, the drive module includes a rotating handle 331, which is fixedly connected to one end of the first roller shaft 321 of a first roller 32. In this embodiment, the first roller 32 fixedly connected to the rotating handle 331 is referred to as the driving roller. The rotating handle 331 is adapted to rotate when rotated by an operator, causing the driving roller to rotate; that is, the drive module is adapted to drive the driving roller to rotate. It should be noted that this application does not limit the driving method of the drive module. In some embodiments, the drive module includes a drive motor, and the drive motor is connected to the first roller shaft of the first roller, thereby driving the first roller to rotate without human intervention.

[0038] Continue to refer to Figure 6 Each first pulley 34 is respectively fitted onto one end of each first roller 321. It is understood that all first pulleys 34 are located on the same side and arranged sequentially along the first direction x-x'. A first synchronous belt 35 is fitted onto each first pulley 34, and the first synchronous belt 35 is adapted to cause each first pulley 34 to rotate synchronously. It is understood that when the rotating handle 331 is rotated by the operator, the first roller 32 fixedly connected to the rotating handle 331 rotates accordingly, and drives the first synchronous belt 35 to rotate through the first pulley 34 fixedly connected to the first roller 32, thereby causing the first synchronous belt 35 to drive the remaining first pulleys 34 to rotate, ultimately causing the remaining first rollers 32 to rotate synchronously as well. Further reference... Figure 5 The first transmission gear 36 and the second transmission gear 37 are respectively sleeved on both ends of the driving roller. It should be noted that this application does not limit the first roller on which the first transmission gear and the second transmission gear are sleeved. In some embodiments, the first transmission gear and the second transmission gear can be sleeved on different first rollers respectively. In other embodiments, the first transmission gear and the second transmission gear can be sleeved on any first roller that is not the driving roller at the same time.

[0039] Continue to refer to Figure 5 and Figure 6, Figure 4 The auxiliary docking mechanism 242 includes two second supports 41, multiple second rollers 42, multiple second pulleys 43, two second synchronous belts 44, a third transmission gear 45, and a fourth transmission gear 46. The two second supports 41 are fixedly connected to opposite sides of the first support 31, and each second support 41 has multiple corresponding second through holes 411 on both sides. It should be noted that the line connecting the two opposite second through holes 411 on both sides of the second support 41 extends along a third direction y-y', and the first direction x-x', the second direction z-z', and the third direction y-y' are all perpendicular to each other, that is, the third direction y-y' is perpendicular to the plane formed by the first direction x-x' and the second direction z-z'. Furthermore, Figure 5 Only the second through holes 411 on one side of each of the two second brackets 41 are shown as an example. The second roller 42 includes a second roller 421 and a second transmission member 422. It should be noted that... Figure 6 Only one second roller 421 and the corresponding second transmission component 422 are labeled as an example, but in combination Figure 5 It is understood that each second bracket 41 in this embodiment is provided with three second rollers 42. In this embodiment, the two ends of each second roller shaft 421 pass through the corresponding second through holes 411 on both sides of the corresponding second bracket 41. In this embodiment, each second roller 42 in each second bracket 41 is arranged sequentially along the first direction x-x'. It is understood that the second roller shaft 421 of each second roller 42 extends along the third direction y-y'. In this embodiment, the second transmission member 422 has the same configuration as the first transmission member 322, and will not be repeated here.

[0040] Continue to refer to Figure 5 and Figure 6In this embodiment, each second pulley 43 is respectively fitted onto the end of each second roller 421 away from the first roller 321. Two second synchronous belts 44 are respectively fitted onto each of the second pulleys 43 in the two second supports 41, and the second synchronous belts 44 are adapted to cause each fitted second pulley 43 to rotate synchronously. A third transmission gear 45 is fitted onto the second roller 421 in one second support 41, and the third transmission gear 45 meshes with the first transmission gear 36. A fourth transmission gear 46 is fitted onto the second roller 421 in the other second support 41, and the fourth transmission gear 46 meshes with the second transmission gear 37. It can be understood that when each of the first rollers 32 in the motion mechanism 241 rotates synchronously, the corresponding first transmission gear 36 also rotates, thereby driving the corresponding third transmission gear 45 to rotate, which in turn drives the second roller 42 fixedly connected to the third transmission gear 45 to rotate, and then causes the remaining second rollers 42 to rotate synchronously via the corresponding second synchronous belt 44. Correspondingly, each of the second rollers 42 in the other second bracket 41 also rotates synchronously through the transmission between the fourth transmission gear 46 and the second transmission gear 37. In this embodiment, the first transmission gear 36, the second transmission gear 37, the third transmission gear 45, and the fourth transmission gear 46 are all bevel gears. It should be noted that this application does not limit the number of the first, second, third, and fourth transmission gears; in some embodiments, multiple first, second, third, and fourth transmission gears may be included.

[0041] The structure of the docking device 200 has been briefly described above. The following will further elaborate on this description. Figure 7 and Figure 8 The process of using the docking device 200 to dock the main docking end 111 of the first main beam 101 and the secondary docking end 112 of the second main beam 102 in the photovoltaic tracker 100 is described, wherein the first main beam 101 and the second main beam 102 are two adjacent main beams 11. Figure 7 This is a schematic diagram showing the incomplete connection between the first main beam 101 and the second main beam 102. (See diagram below.) Figure 7 As shown, the main mating end 111 of the first main beam 101 is placed on the first mating portion 23. Further reference... Figure 4 The support platform 231 is adapted to support the main docking end 111 and conform to the bottom surface of the main docking end 111, and the position adjustment plate 232 is adapted to conform to the side surface of the main docking end 111, thereby enabling the main docking end 111 to extend along the first direction x-x' when it is fixed on the first docking part 23. (Continue referring to...) Figure 7 During docking, the operator places the secondary docking end 112 of the second main beam 102 into the second docking section 24. Further reference... Figure 5The operator places the end of the secondary docking end 112 onto the first roller 32, which supports the secondary docking end 112. The operator then rotates the rotating handle 331, causing all the first rollers 32 to rotate synchronously. For example, Figure 5 When the rotating handle 331 rotates counterclockwise, the first transmission member 322 abuts against the bottom of the secondary docking end 112, resulting in significant friction. This allows the secondary docking end 112 to move closer to the main docking end 111, i.e., to move along the direction x', as the first roller 32 rotates. Simultaneously, as the first roller 32 rotates, the second roller 42 also rotates synchronously, similarly driving the secondary docking end 112 closer to the main docking end 111.

[0042] Understandably, when it is necessary to separate the secondary docking end 112 and the primary docking end 111 during the docking process, the operator can do so by using... Figure 5 The rotating handle 331 rotates clockwise, thereby moving the secondary docking end 112 away from the primary docking end 111, i.e., moving it along the x-direction. Further refer to... Figure 2 In this embodiment, as the secondary docking end 112 approaches the main docking end 111, the second roller 42 abuts against the main beam body 113 of the second main beam 102, thereby adjusting the extension of the second main beam 102 along the first direction x-x', thereby adjusting the position of the secondary docking end 112 of the second main beam 102, so that the secondary docking end 112 can be smoothly embedded into the main docking end 111 and the second fastening hole 115 of the secondary docking end 112 overlaps with the first fastening hole 114 of the corresponding main docking end 111, and the secondary docking end 112 will not rub against the main docking end 111, causing damage to the anti-corrosion coating and thus affecting its service life. Figure 8 This is a schematic diagram showing the connection between the first main beam 101 and the second main beam 102.

[0043] The basic concepts have been described above. Obviously, for those skilled in the art, the above disclosure is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0044] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0045] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0046] Although this application has been described with reference to specific embodiments, those skilled in the art should recognize that the above embodiments are only used to illustrate this application, and various equivalent changes or substitutions can be made without departing from the spirit of this application. Therefore, any changes or modifications to the above embodiments within the essential spirit of this application will fall within the scope of the claims of this application.

Claims

1. A docking device, characterized in that, Suitable for docking adjacent first and second main beams in a photovoltaic tracker, wherein the first and second main beams respectively include opposing main docking ends and secondary docking ends, the docking device comprising: Base plate; A first docking portion is disposed on the base plate. The first docking portion is adapted to support the main docking end of the first main beam. The main docking end is adapted to be fixed on the first docking portion. The main docking end extends in the first docking portion along a first direction. A second docking part is disposed on the base plate. The second docking part is adapted to support the secondary docking end of the second main beam. The second docking part includes a motion mechanism adapted to move the secondary docking end toward or away from the main docking end.

2. The docking device as described in claim 1, characterized in that, The first docking part includes: A support platform is fixedly connected to the base plate. The support platform is adapted to support the main docking end and fits against the bottom surface of the main docking end. A position adjustment plate is disposed on the support platform, the position adjustment plate extends along the first direction, and the position adjustment plate is adapted to fit against the side of the main docking end.

3. The docking device as described in claim 1, characterized in that, The motion mechanism includes: The first bracket is fixedly connected to the base plate, and each of the two sides of the first bracket has a plurality of corresponding first through holes; Multiple first rollers are arranged sequentially along the first direction. Each first roller includes a first roller shaft, with both ends of the first roller shaft passing through the first through holes on both sides of the first bracket. The first roller is adapted to support the secondary docking end and to drive the secondary docking end closer to or away from the main docking end by rotating itself. The first roller shaft extends along a second direction, which is perpendicular to the first direction.

4. The docking device as described in claim 3, characterized in that, One of the first rollers is a drive roller, and the motion mechanism further includes: A drive module is fixedly connected to the first roller shaft of the active roller, and the drive module is adapted to drive the active roller to rotate; Multiple first pulleys, each first pulley being respectively fitted onto one end of each first roller; A first synchronous belt is engaged with each of the first pulleys, and the first synchronous belt is adapted to make each of the first pulleys rotate synchronously.

5. The docking device as described in claim 3, characterized in that, The second docking part further includes an auxiliary docking mechanism, which includes: Two second brackets are fixedly connected to the opposite sides of the first bracket, and each side of the second bracket has a plurality of corresponding second through holes; Multiple second rollers, each second roller including a second roller shaft, with both ends of the second roller shaft passing through the second through holes on both sides of the second bracket, the second rollers being adapted to adjust the position of the secondary docking end, wherein each of the second rollers in each second bracket is arranged sequentially along the first direction, and the second roller shaft extends along a third direction, the third direction being perpendicular to the plane formed by the first direction and the second direction.

6. The docking device as described in claim 5, characterized in that, The motion mechanism also includes: At least one first transmission gear, which is sleeved on the first roller; At least one second transmission gear is fitted onto the first roller. The auxiliary docking mechanism also includes: At least one third transmission gear, the third transmission gear being sleeved on the second roller in a second bracket, the third transmission gear meshing with the first transmission gear; At least one fourth transmission gear is sleeved on the second roller in another second bracket, and the fourth transmission gear meshes with the second transmission gear.

7. The docking device as described in claim 6, characterized in that, The auxiliary docking mechanism also includes: Multiple second pulleys, each second pulley being respectively fitted onto one end of each second roller; Two second synchronous belts are respectively connected to each of the second pulleys in the two second brackets, and the second synchronous belts are adapted to make the connected second pulleys rotate synchronously.

8. The docking device as described in claim 1, characterized in that, Also includes: A telescopic support is fixedly connected to the base plate, and the telescopic support is adapted to support the base plate and adjust the height of the base plate relative to the ground.

9. A photovoltaic tracker, characterized in that, include: At least two main beams, the at least two main beams including an adjacent first main beam and a second main beam, the first main beam and the second main beam respectively including a main docking end and a secondary docking end, wherein at least the main docking end of the first main beam is adapted to dock with the secondary docking end of the second main beam by means of a docking device as described in any one of claims 1 to 8.

10. The photovoltaic tracker as described in claim 9, characterized in that, The main docking end has multiple through first fastening holes, the secondary docking end has multiple through second fastening holes, and the photovoltaic tracker further includes: Multiple fasteners, the fasteners being adapted to pass through corresponding first and second fastening holes after mating.

11. The photovoltaic tracker as described in claim 9, characterized in that, The surface of the main beam has an anti-corrosion coating.

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