Photovoltaic tracking support and photovoltaic tracking system with main beam through type

Abstract

The utility model relates to a kind of main beam through type photovoltaic tracking support and photovoltaic tracking system, wherein, main beam through type photovoltaic tracking support, comprising: column, speed reducer, main beam and photovoltaic support frame connected in turn;Wherein, multiple connecting pieces are equipped on the photovoltaic support frame, multiple positioning holes are on the main beam, the photovoltaic support frame is connected with the main beam by the connecting piece and the positioning hole, and the speed reducer is used to drive the main beam rotation;The speed reducer includes the through hole accommodating main beam, the main beam is moved in the through hole in the direction perpendicular to the column when bracket installation, so that the positioning hole is consistent with the position of the connecting piece.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic tracking bracket technology, specifically to a photovoltaic tracking bracket and photovoltaic tracking system with a main beam through-type structure. Background Technology

[0002] In the photovoltaic field, speed reducers (often called rotary drives or rotary gear reducers) are the core power transmission components of solar tracking bracket systems. Their main function is to convert the high-speed, low-torque rotation output from the motor into the low-speed, high-torque rotation required by the bracket system, so as to precisely drive the photovoltaic panels to rotate and achieve tracking of the sun's position.

[0003] The difference between a rotary reducer and a regular reducer includes that the output end of the rotary reducer is a hollow shaft and flange. The hollow shaft is directly fitted onto the rotating main beam of the support frame and fixed with flange bolts. Due to transportation capacity limitations, the maximum transportable main beam is 12 meters. During construction, adjacent main beams are connected via the hollow shafts and flanges at both ends of the rotary reducer. The rotary reducer is mounted on the columns, which necessitates high precision in the construction of each column. If the column's position deviates, the two ends of the main beam cannot be precisely connected to the two rotary reducers. In other words, using existing rotary reducers to build photovoltaic tracking supports results in high construction costs and significant construction difficulties. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a photovoltaic tracking bracket and photovoltaic tracking system with a main beam through-type structure, so as to solve the problems of high construction cost and high construction difficulty of existing photovoltaic tracking brackets.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is to provide a photovoltaic tracking bracket with a main beam through-type structure, comprising: a column, a reducer, a main beam, and a photovoltaic support frame connected in sequence; wherein, the photovoltaic support frame is provided with multiple connectors, the main beam has multiple positioning holes, the photovoltaic support frame is connected to the main beam through the connectors and the positioning holes, the reducer is used to drive the main beam to rotate; the reducer includes a through hole for accommodating the main beam, and when the bracket is installed, the main beam moves in the through hole along a direction perpendicular to the column, so that the positioning hole is aligned with the position of the connector.

[0006] Optionally, the reducer includes: a reducer body and a clamping assembly; wherein, the clamping assembly includes two clamping units symmetrically arranged on both sides of the reducer body, and the clamping units are connected to the output end of the reducer body; both the reducer body and the clamping units include through holes for accommodating the main beam, the diameter of the through hole in the reducer body is larger than the outer diameter of the main beam, and the diameter of the through hole in the clamping unit is adjustable. In a first state, the diameter of the through hole in the clamping unit is larger than the outer diameter of the main beam; in a second state, the diameter of the through hole in the clamping unit is equal to the outer diameter of the main beam.

[0007] Optionally, the reducer body includes a motor, a worm gear assembly and a turbine connected in sequence. The turbine includes a through hole for accommodating the main beam. The clamping unit is fixedly connected to the turbine by a plurality of screws. The clamping unit is an adjustable clamp.

[0008] Optionally, the main beam includes an adjustable main beam and a standard main beam. The adjustable main beam passes through the through hole and is connected to the reducer. The standard main beam is connected to the end of the adjustable main beam. The wall thickness of the adjustable main beam is greater than the wall thickness of the standard main beam.

[0009] Optionally, the wall thickness of the adjusting main beam is 3-4 mm, and the wall thickness of the standard main beam is 2.0-2.5 mm.

[0010] Optionally, the length of the adjusting main beam is less than the length of the standard main beam.

[0011] Optionally, the end of the standard main beam is a reducing pipe, and the aperture of the end of the adjusting main beam matches the aperture of the reducing pipe.

[0012] Optionally, the photovoltaic support frame includes a plurality of purlins, each purlin having a connector.

[0013] Optionally, the connector is a U-shaped buckle, an angle steel connector, or a purlin support plate.

[0014] The technical solution adopted by this utility model to solve the above-mentioned technical problems is to provide a photovoltaic tracking system, including: a photovoltaic tracking bracket with a main beam through as described above; and photovoltaic modules installed on the photovoltaic support frame of the photovoltaic tracking bracket.

[0015] This utility model's through-beam photovoltaic tracking bracket includes columns, a reducer, a main beam, and a photovoltaic support frame connected in sequence. The main beam can have purlin positioning holes pre-processed in the factory. The reducer includes through holes to accommodate the main beam. During bracket installation, the main beam moves in the through holes along a direction perpendicular to the columns, so that the positioning holes are aligned with the positions of the connectors. All columns of this photovoltaic tracking bracket are decoupled from the main beam system, facilitating the layout design of various non-standard solutions. There are no construction precision requirements for the columns, reducing construction costs and difficulty. Attached Figure Description

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0017] Figure 1 This is a schematic diagram of the structure of a photovoltaic tracking bracket with a main beam that runs through it, according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of a speed reducer according to an embodiment of this application.

[0019] Figure 3 This is an exploded view of the reducer body according to an embodiment of this application.

[0020] Figure 4 This is a schematic diagram of a photovoltaic tracking system according to an embodiment of this application. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Existing photovoltaic tracking brackets have the following drawbacks during construction:

[0023] 1. The construction of multiple columns requires high precision. If construction errors occur and dimensions are out of tolerance, the main beam will not be able to be installed.

[0024] 2. Because the main beam of a row of tracking brackets is broken into several sections and an adjustment mechanism is installed, it is impossible to pre-drill purlin positioning holes on the main beam, thus lacking quick-installation upgrade capability.

[0025] 3. Adjustment mechanisms, such as sleeves and clamps, must be set between drives, which increases additional costs and reduces overall reliability as the number of connection points increases.

[0026] To address the aforementioned shortcomings, this application provides a photovoltaic tracking bracket with a main beam that runs through it. All columns of this photovoltaic tracking bracket are decoupled from the main beam system, facilitating the layout design of various non-standard solutions. It also eliminates the requirement for high precision in column construction, reducing construction costs and difficulty.

[0027] Figure 1 This is a schematic diagram of the structure of a photovoltaic tracking bracket with a main beam that runs through it, according to an embodiment of this utility model. Figure 1 As shown, the photovoltaic tracking bracket 100 with a main beam running through it includes a column 1, a reducer 2, a main beam, and a photovoltaic support frame 4 connected in sequence. The reducer 2 drives the main beam to rotate, which in turn drives the photovoltaic support frame 4 connected to the main beam to rotate, thus achieving tracking of the sun's position.

[0028] In this embodiment, the main beam is formed by connecting multiple adjustable main beams 31 and multiple standard main beams 32. In other embodiments, the main beam may also be integrally formed.

[0029] The photovoltaic support frame 4 includes multiple purlins 41, each purlin 41 having a connector 42. The main beam has multiple positioning holes A. Each purlin 41 is connected to the main beam via the connector 42 and the positioning hole A. In this embodiment, the connector 42 is a U-shaped buckle. In other embodiments, the connector can also be an angle steel connector or a purlin support plate. During photovoltaic bracket installation, multiple columns 1 are generally installed at preset positions first, and then speed reducers 2 are installed on the columns 1. If existing speed reducers are used, the distance between adjacent speed reducers is fixed after the speed reducer positions are determined. If construction deviations cause the distance between adjacent speed reducers to be greater than or less than the length of the main beam, the main beam cannot be directly installed between adjacent speed reducers. Furthermore, the positioning holes A on the main beam and the connectors 42 on the purlins 41 may not align, making it impossible to fix the main beam to the purlins 41.

[0030] Figure 2 This is a schematic diagram of a speed reducer according to an embodiment of this application. (As shown...) Figure 2 The reducer 2 includes a reducer body 21 and a clamping assembly. The clamping assembly includes two clamping units 221. The two clamping units 221 are symmetrically arranged on both sides of the output end of the reducer body 21, and the clamping units 221 are fixedly connected to the output end of the reducer body 21 by multiple screws. Both the reducer body 21 and the clamping units 221 include through holes B for accommodating the main beam. The diameter of the through holes of the clamping units 221 is adjustable. In the first state (i.e., when the bracket is installed), the diameter of the through holes of the clamping units 221 is larger than the outer diameter of the main beam, and the main beam moves in the through holes B in a direction perpendicular to the column, so that the positioning hole is aligned with the position of the connector. In the second state (i.e., after the bracket is installed), the diameter of the through holes of the clamping units 221 is equal to the outer diameter of the main beam, that is, the through holes of the clamping units 221 clamp the main beam. Therefore, when the output end of the reducer body 21 rotates, it drives the clamping units 221 to rotate, thereby driving the main beam to rotate.

[0031] Figure 3 This is an exploded view of the speed reducer body according to an embodiment of this application. Figure 3 The reducer body 21 includes a motor 211, a worm gear assembly 212, and a worm wheel 213. The worm gear assembly 212 includes a worm 2121, a bearing 2122, a shaft stop 2123, and a skeleton oil seal 2124. The worm 2121 is connected to the motor 211 via the bearing 2122, shaft stop 2123, and skeleton oil seal 2124. The worm wheel 213 meshes with the worm 2121. The working principle of the reducer body is that the rotation of the motor 211 drives the worm 2121 to rotate, and the worm 2121 drives the worm wheel 213 to rotate. Since the worm typically has only 1-4 threads, while the worm wheel has many teeth, a large reduction ratio can be achieved (typically between 5:1 and 100:1). Figure 3 As shown, the output end of turbine 213 consists of flanges on both the left and right sides, and two clamping units are fixedly connected to the flanges by multiple screws. Furthermore, turbine 213 includes a through hole B for accommodating the main beam. The inner diameter of the through hole B of turbine 213 is larger than the outer diameter of the main beam, thus allowing the main beam to move horizontally within the through hole B of turbine 213.

[0032] Optionally, the reducer body 21 includes a housing 214, balls 215, and a sealing ring 216. The housing 214 includes a first receiving cavity and a second receiving cavity. The turbine 213 is mounted in the first receiving cavity of the housing 214 via the balls 215 and the sealing ring 216. The motor 211 is mounted in the second receiving cavity of the housing 214. This structure can reduce the size of the reducer body.

[0033] like Figure 1 As shown, the main beam is composed of multiple adjustable main beams 31 and multiple standard main beams 32 connected together. The reducer 2 is connected to the adjustable main beams 31. According to stress analysis, the connection between the reducer 2 and the adjustable main beam 31 is one of the weakest links in the entire support system. This is because it simultaneously bears four special loads: the driving torque output by the reducer, the overturning moment generated by wind load, the bending moment caused by the support's own weight, and the stress concentration of the connecting parts themselves. The standard main beams are mainly subjected to uniformly distributed wind pressure and bending due to their own weight. Therefore, structural reinforcement design is needed for the connection between the reducer 2 and the adjustable main beam 31. Optionally, the wall thickness of the adjustable main beam 31 is greater than the wall thickness of the standard main beam 32. This application adopts a local thickening strategy to improve the survivability of the support system under extreme wind loads.

[0034] Optionally, the wall thickness of the adjusting main beam 31 is 3-4 mm, and the wall thickness of the standard main beam 32 is 2.0-2.5 mm. This application enhances the reliability of the photovoltaic tracking bracket while ensuring that the added weight of the main beam is minimized.

[0035] The standard main beam is a standardized manufactured main beam, and its cost is lower than that of a customized adjustable main beam. Therefore, to reduce costs, the length of the adjustable main beam may optionally be shorter than the length of the standard main beam. In some embodiments, the length of the adjustable main beam is 3 to 4 meters, which is much shorter than the length of the standard main beam (approximately 12 meters).

[0036] In some embodiments, the adjusting main beam 31 and the standard main beam 32 are connected by a connecting assembly such as a sleeve or a clamp. Preferably, the adjusting main beam 31 and the standard main beam 32 are connected by a connection assembly such as... Figure 1 The connection method shown is as follows. Specifically, the end of the standard main beam 32 is a reducing pipe, and the aperture of the end of the adjusting main beam 31 matches the aperture of the reducing pipe. This connection method saves on additional connecting components and reduces costs.

[0037] This application also claims protection for a photovoltaic tracking system.

[0038] Figure 4 This is a schematic diagram of a photovoltaic tracking system according to an embodiment of this application. Figure 4 As shown, the photovoltaic tracking system 400 includes a main beam-through photovoltaic tracking bracket 100 and a photovoltaic module 200, as claimed in this application. The photovoltaic module 200 is mounted on the photovoltaic support frame of the photovoltaic tracking bracket 100.

[0039] The photovoltaic tracking bracket and photovoltaic tracking system with the main beam through-type of this utility model have the following beneficial effects:

[0040] 1. No precision requirements are required for the construction of the columns, reducing construction costs and difficulty.

[0041] 2. All columns are decoupled from the main beam system, facilitating the layout design of various non-standard schemes.

[0042] 3. No need for adjustment mechanisms between drives: such as sleeves or clamps, reducing costs.

[0043] 4. The main beam is equivalent to a complete main beam. Purlin positioning holes can be pre-processed in the factory. On the construction site, the amount of purlin assembly and installation is reduced, and the tracking bracket can be installed more quickly, saving construction costs and speeding up the construction progress.

[0044] 5. The main beam can directly pass over the reducer, reducing the amount of purlins used and the cost of connecting the cleaning robot to the cable tray.

[0045] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein, and therefore the present invention is not limited to the specific embodiments disclosed below.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] Hereinafter, embodiments of the present invention will be described based on the accompanying drawings. However, the embodiments shown below are examples of light-emitting elements and manufacturing methods thereof used to embody the technical concept of the present invention, and the light-emitting device and manufacturing method thereof of the present invention are not specifically defined as follows. Furthermore, in order to facilitate understanding of the scope of the claims, the components shown in the "Claims" and "Summary of the Utility Model" columns are assigned numbers corresponding to the components shown in the embodiments. However, the components shown in the claims are not intended to be specific to the components of the embodiments. In particular, the dimensions, materials, shapes, and relative arrangements of the constituent components described in the embodiments are not intended to limit the scope of the present invention unless specifically stated otherwise, but are merely illustrative examples.

[0050] However, the dimensions or positional relationships of the components shown in the accompanying drawings are sometimes exaggerated for clarity. Therefore, in the following description, detailed descriptions of the same names and symbols representing the same or homogeneous components are appropriately omitted. Furthermore, the elements constituting this utility model can be multiple elements composed of the same components, thus allowing one component to function as multiple elements; conversely, multiple components can share the function of one component. Additionally, the content described in some embodiments and implementations can be applied to other embodiments and implementations. Furthermore, in this specification, "upper" is not limited to the case of being formed in contact with an upper surface, but also includes the case of being formed separately on top, and also includes the meaning of an interlayer between layers.

[0051] While the foregoing disclosure has discussed various examples of utility model embodiments that are currently considered useful, it should be understood that such details are for illustrative purposes only, and the appended claims are not limited to the disclosed embodiments. Rather, the claims are intended to cover all modifications and equivalent combinations that conform to the spirit and scope of the present utility model embodiments. For example, although the system components described above can be implemented by hardware devices, they can also be implemented solely by software solutions, such as installing the described system on existing servers or mobile devices.

[0052] Similarly, it should be noted that, in order to simplify the description of this utility model and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of this utility model sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the object of this utility model requires more features than those mentioned in the claims. In fact, the embodiments have fewer features than all the features of the single embodiment disclosed above.

[0053] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed according to the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of range in some embodiments of this invention are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

[0054] Although the present invention has been described with reference to specific embodiments, those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention, and various equivalent changes or substitutions can be made without departing from the spirit of the present invention. Therefore, any changes or modifications to the above embodiments within the scope of the essential spirit of the present invention will fall within the scope of the claims of this application.

Claims

1. A photovoltaic tracking bracket with a main beam running through it, characterized in that, include: The columns, reducer, main beam, and photovoltaic support frame are connected in sequence. The photovoltaic support frame is provided with multiple connectors, the main beam has multiple positioning holes, the photovoltaic support frame is connected to the main beam through the connectors and the positioning holes, and the reducer is used to drive the main beam to rotate. The speed reducer includes a through hole for accommodating the main beam. When the bracket is installed, the main beam moves in the through hole along a direction perpendicular to the column, so that the positioning hole is aligned with the position of the connector.

2. The photovoltaic tracking bracket with a main beam through-type structure as described in claim 1, characterized in that, The speed reducer includes: Gearbox body and clamping assembly; The clamping assembly includes two clamping units, which are symmetrically arranged on both sides of the reducer body and connected to the output end of the reducer body. Both the reducer body and the clamping unit include a through hole for accommodating the main beam. The diameter of the through hole in the reducer body is larger than the outer diameter of the main beam. The diameter of the through hole in the clamping unit is adjustable. In a first state, the diameter of the through hole in the clamping unit is larger than the outer diameter of the main beam; in a second state, the diameter of the through hole in the clamping unit is equal to the outer diameter of the main beam.

3. The photovoltaic tracking bracket with a main beam through-type structure as described in claim 2, characterized in that, The reducer body includes a motor, a worm gear assembly and a turbine connected in sequence. The turbine includes a through hole for accommodating the main beam. The clamping unit is fixedly connected to the turbine by multiple screws. The clamping unit is an adjustable clamp.

4. The photovoltaic tracking bracket with a main beam through-type structure as described in claim 1, characterized in that, The main beam includes an adjustable main beam and a standard main beam. The adjustable main beam passes through the through hole and is connected to the reducer. The standard main beam is connected to the end of the adjustable main beam. The wall thickness of the adjustable main beam is greater than the wall thickness of the standard main beam.

5. The photovoltaic tracking bracket with a main beam through-type structure as described in claim 4, characterized in that, The wall thickness of the adjusting main beam is 3-4 mm, and the wall thickness of the standard main beam is 2.0-2.5 mm.

6. The photovoltaic tracking bracket with a main beam through-type structure as described in claim 4, characterized in that, The length of the adjusting main beam is less than the length of the standard main beam.

7. The photovoltaic tracking bracket with a main beam through-type structure as described in claim 4, characterized in that, The end of the standard main beam is a reducing pipe, and the aperture of the end of the adjusting main beam matches the aperture of the reducing pipe.

8. The photovoltaic tracking bracket with a main beam through-type structure as described in claim 1, characterized in that, The photovoltaic support frame includes multiple purlins, and each purlin has a connector.

9. The photovoltaic tracking bracket with a main beam through-type structure as described in claim 8, characterized in that, The connector is a U-shaped buckle, an angle steel connector, or a purlin support plate.

10. A photovoltaic tracking system, characterized in that, include: The main beam through-type photovoltaic tracking bracket as described in any one of claims 1-9; The photovoltaic module is installed on the photovoltaic support frame of the photovoltaic tracking bracket.

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