A practical dual-axis sun tracking device

Abstract

The utility model discloses a practical dual -axle sun tracking device relates to solar energy utilization technical field, solves present technical problem, including part is located above ground equipment base, sets up the column component at the top of equipment base, is located at the top of column component's rotary support, sets up the support part at the top of rotary support, sets up the photovoltaic mounting frame on the support part through first hinged mechanism and installs photovoltaic module on photovoltaic mounting frame, and the equipment base and column component integration is arranged, and the height angle tracking support module of driving photovoltaic mounting frame angle adjustment is set up on the support part. Compared with traditional scheme, the production and construction technology are all standardized, and the period and quality are easy to control, and the cost is lower than traditional scheme, the equipment base and column component integration, no connecting structure at the dangerous point under the load, completely by control prefabricated pile itself mechanics parameter satisfies design mechanics index, no other influencing factor, improves the equipment reliability.

Description

Technical Field

[0001] This utility model relates to the field of solar energy utilization technology, and more specifically to the field of a practical dual-axis solar tracking device. Background Technology

[0002] Traditional dual-axis solar tracking devices typically use stepped independent foundations under columns, and construction generally involves multiple processes: foundation excavation → rebar tying → formwork installation → concrete pouring → curing → formwork removal → earthwork compaction. The columns of traditional dual-axis tracking equipment are made of steel pipes welded to flanges and connected by pre-embedded bolts. This has the following disadvantages or deficiencies: Firstly, the production and construction processes are numerous and complex, making it difficult to control the construction period and quality, and resulting in high costs. Secondly, the connection between the foundation and the column is where the overall structure is subjected to the maximum bending moment. The reliability requirements for the connection at this point are extremely high, which further increases the overall cost of the equipment and reduces its reliability.

[0003] Thirdly, for different projects or different geological conditions of the same project, the foundations and columns are non-standardized customized products, which are expensive and not conducive to large-scale, mass production.

[0004] To achieve lightweight design, traditional dual-axis solar tracking devices often use welded truss beams as the main load-bearing components for photovoltaic module installation and support. However, this approach has the following drawbacks in practical applications: First, the structure has a complex force transmission path, poor lateral stability, and numerous stress concentration points. Theoretical calculations are complex and errors are difficult to control.

[0005] Secondly, the components have complex structures and welding processes, making it difficult to control welding quality. This leads to a high failure rate and high manufacturing costs. Utility Model Content

[0006] The purpose of this utility model is to provide a practical dual-axis solar tracking device in order to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution: This utility model provides a practical dual-axis solar tracking device, including a device foundation partially located above the ground, a column component set on top of the device foundation, a rotary support set on top of the column component, a support component set on top of the rotary support, a photovoltaic mounting frame set on the support component through a first hinge mechanism, and a photovoltaic module installed on the photovoltaic mounting frame. The equipment foundation and column components are integrated, and the support components are equipped with a height angle tracking support module that drives the photovoltaic mounting frame to adjust its angle.

[0008] Specifically, this scheme uses precast concrete pipe piles in a factory. The project involves producing precast concrete pipe piles according to standards, requiring only pile driving on-site. Compared to traditional schemes, it has the following advantages: The production and construction processes are standardized, making it easy to control the construction period and quality, and the cost is lower than traditional solutions. The equipment foundation and column components are integrated, with no connecting structures at the dangerous load points. The mechanical parameters of the precast piles themselves are controlled to meet the design mechanical indicators, without any other influencing factors, thus improving the reliability of the equipment.

[0009] In one embodiment, the equipment foundation includes a first precast concrete pipe pile; a portion of the first precast concrete pipe pile is located below ground level, and a portion of the first precast concrete pipe pile is located above ground level.

[0010] In one embodiment, the column component includes a second precast concrete pipe pile and a transition steel column disposed on top of the second precast concrete pipe pile. The first precast concrete pipe pile and the second precast concrete pipe pile are integrally formed to constitute a precast concrete pipe pile.

[0011] Specifically, for different projects or different geological conditions of the same project, this solution only needs to adjust the diameter and length (pile driving depth) of the precast concrete pipe piles to meet the requirements of different stress design indicators. The adjustment of the diameter and length of the precast concrete pipe piles does not affect standardized production, which is conducive to the large-scale and batch production of equipment.

[0012] In one embodiment, the elevation angle tracking support module is a hydraulic drive component, which includes a hydraulic cylinder, a piston rod disposed within the hydraulic cylinder, and a hydraulic station connected to the hydraulic cylinder via a hydraulic oil pipe. The hydraulic cylinder body is movably mounted on the support component via a third hinge mechanism, and the end of the piston rod is movably mounted on the photovoltaic mounting frame via a second hinge mechanism.

[0013] Specifically, this solution achieves solar azimuth tracking through the rotational drive of a slewing bearing in the horizontal plane. For example... Figure 2 As shown, the first hinge mechanism, the second hinge mechanism, and the third hinge mechanism (corresponding to...) Figure 2 Points A, B, and C are all pivot joints formed by pin-hole hinges. The length of the piston rod (and the distance between points B and C) is adjusted by the linear reciprocating motion of the hydraulic drive component, thereby changing the tilt angle of the photovoltaic module to achieve solar altitude angle tracking.

[0014] In one embodiment, the support component is a box-shaped member.

[0015] Specifically, during equipment operation, the elevation angle tracking support module in this solution primarily bears natural wind-induced loads. All loads are transferred to the slewing bearing via the elevation angle tracking support module. In actual projects, the connection point O between the support component and the slewing bearing is bolted. Besides being subjected to horizontal and vertical forces, this point mainly bears the torque generated at this point under the combined wind force of all photovoltaic modules. In actual projects, the bolts at this location have a high rate of loosening and failure, severely impacting equipment reliability. To address this issue, this solution designs the support component as a box-shaped structure, minimizing the distance OA to reduce the torque borne at point O, thereby reducing the load on the connecting bolts and improving equipment reliability.

[0016] Due to the time-varying and unpredictable nature of natural wind forces, the piston rod (elevation angle drive device) will be subjected to alternating impact loads (tension / compression) for extended periods during equipment operation. In practical projects, traditional screw-nut type drive devices often suffer from high failure rates and short lifespans. This solution utilizes a hydraulic drive device to address the load characteristics of the elevation angle drive device, resolving the shortcomings of traditional screw-nut type drive devices in this application scenario.

[0017] In one embodiment, the first hinge mechanism, the second hinge mechanism, and the third hinge mechanism are not on the same straight line, and the line connecting the first hinge mechanism, the second hinge mechanism, and the third hinge mechanism forms a dynamically changing triangle.

[0018] In one embodiment, the photovoltaic mounting frame includes a strip-shaped main crossbeam and a plurality of longitudinal support rod assemblies evenly spaced along the length of the main crossbeam. Each longitudinal support rod assembly is symmetrically arranged on the main crossbeam, and the main crossbeam and the support components are connected by a first hinge mechanism to realize load transfer.

[0019] In one embodiment, the system also includes two horizontal supports symmetrically arranged on both sides of the main crossbeam, both of which are parallel to the main crossbeam.

[0020] In one embodiment, each longitudinal support rod assembly includes a secondary beam arranged longitudinally above the main crossbeam, a connecting support arranged below the main crossbeam, and two first inclined supports symmetrically arranged on both sides of the connecting support by means of a detachable connection. The ends of the two first inclined supports are respectively connected to the two ends of the secondary beam by means of a detachable connection. The photovoltaic module is detachably mounted on multiple secondary beams by bolts. Vertical supports are provided between the first inclined supports and the secondary beams.

[0021] In one embodiment, the longitudinal support rod assembly further includes two second inclined supports symmetrically arranged on both sides of the connecting support via a detachable connection, with the ends of the two second inclined supports respectively connected to the middle of the secondary beam via a detachable connection.

[0022] Specifically, this solution optimizes the overall structure of the photovoltaic mounting frame, such as... Figure 1 The photovoltaic modules are installed on multiple secondary beams. The load is transferred to the main beam through the secondary beams and diagonal supports (first and second diagonal supports). The main beam is connected to the support components to achieve load transfer.

[0023] The beneficial effects of this utility model are as follows: 1. This utility model has a reasonable design, a clear structural force transmission path, facilitates theoretical calculations, and allows for easy control of accuracy. Compared to traditional structures, it increases the number of load transfer points and reduces stress concentration points and their intensity.

[0024] 2. Due to the reduced stress concentration at the connection points, all connection points can be bolted, all components do not require welding, production quality is easy to control, and thus the manufacturing cost of the equipment is reduced.

[0025] 3. The force transmission path of the photovoltaic mounting frame is clear, facilitating theoretical calculations and ensuring easy accuracy control. Compared to traditional structures, it increases the number of load transfer points, reducing stress concentration points and their intensity.

[0026] 4. Due to the reduced stress concentration at the connection points, all connection points of the photovoltaic mounting frame can be bolted, and all components do not require welding, making production quality easy to control and thus reducing the manufacturing cost of the equipment. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A partial structural diagram; Figure 3 This is a structural schematic diagram of a photovoltaic mounting frame; Reference numerals: 1. Precast concrete pipe pile; 2. Transition steel column; 3. Slewing bearing; 4. Height angle tracking support module; 5. Support component; 6. Photovoltaic mounting frame; 7. Photovoltaic module; 6.1 Main beam; 6.2 Secondary beam; 6.3 First inclined support; 6.4 Second inclined support; 6.5 Connecting support; 6.6 Vertical support; 6.7 Horizontal support. Detailed Implementation

[0029] To make the technical problems, technical solutions, and technical effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0033] Example 1 like Figure 1 As shown, this embodiment provides a practical dual-axis solar tracking device, including a device foundation partially located above the ground, a column component set on top of the device foundation, a rotary support 3 located on top of the column component, a support component 5 set on top of the rotary support 3, a photovoltaic mounting frame 6 set on the support component 5 through a first hinge mechanism, and a photovoltaic module 7 mounted on the photovoltaic mounting frame 6. The equipment foundation and column components are integrated, and the support component 5 is equipped with a height angle tracking support module 4 that drives the photovoltaic mounting frame 6 to adjust its angle.

[0034] Specifically, this scheme uses factory-precast concrete pipe piles. The project involves the production of standard precast concrete pipe piles, requiring only pile driving on-site. Compared to traditional schemes, it has the following advantages: The production and construction processes are standardized, making it easy to control the construction period and quality, and the cost is lower than traditional solutions. The equipment foundation and column components are integrated, with no connecting structures at the dangerous load points. The mechanical parameters of the precast piles themselves are controlled to meet the design mechanical indicators, without any other influencing factors, thus improving the reliability of the equipment.

[0035] Example 2 like Figures 1 to 3 As shown, this embodiment provides a practical dual-axis solar tracking device, including a device foundation partially located above the ground, a column component set on top of the device foundation, a rotary support 3 located on top of the column component, a support component 5 set on top of the rotary support 3, a photovoltaic mounting frame 6 set on the support component 5 through a first hinge mechanism, and a photovoltaic module 7 mounted on the photovoltaic mounting frame 6. The equipment foundation and column components are integrated, and the support component 5 is equipped with a height angle tracking support module 4 that drives the photovoltaic mounting frame 6 to adjust its angle.

[0036] The equipment foundation includes a first precast concrete pipe pile; part of the first precast concrete pipe pile is located below ground level, and part of the first precast concrete pipe pile is located above ground level.

[0037] The column components include a second precast concrete pipe pile and a transition steel column 2 set on top of the second precast concrete pipe pile. The first precast concrete pipe pile and the second precast concrete pipe pile are integrally formed to constitute the precast concrete pipe pile 1.

[0038] Specifically, for different projects or different geological conditions of the same project, this solution only needs to adjust the diameter and length (driving depth) of the precast concrete pipe pile 1 to meet the requirements of different stress design indicators. The adjustment of the diameter and length of the precast concrete pipe pile 1 does not affect standardized production and is conducive to the large-scale and batch production of equipment.

[0039] Example 3 This embodiment is a further optimization based on embodiment 2, specifically: The elevation angle tracking support module 4 is a hydraulic drive component, which includes a hydraulic cylinder, a piston rod disposed inside the hydraulic cylinder, and a hydraulic station connected to the hydraulic cylinder via hydraulic oil pipes. The hydraulic cylinder body is movably mounted on the support component 5 via a third hinge mechanism, and the end of the piston rod is movably mounted on the photovoltaic mounting frame 6 via a second hinge mechanism.

[0040] The first hinge mechanism, the second hinge mechanism, and the third hinge mechanism are not on the same straight line. The line connecting the first hinge mechanism, the second hinge mechanism, and the third hinge mechanism forms a dynamically changing triangle.

[0041] Specifically, this solution achieves solar azimuth tracking through the rotational drive of the slewing support 3 in the horizontal plane. For example... Figure 2 As shown, the first hinge mechanism, the second hinge mechanism, and the third hinge mechanism (corresponding to...) Figure 2 Points A, B, and C are all pivot joints formed by pin-hole hinges. The length of the piston rod (and the distance between points B and C) is adjusted by the linear reciprocating motion of the hydraulic drive component, thereby changing the tilt angle of the photovoltaic module 7 to achieve solar altitude angle tracking.

[0042] Example 4 This embodiment is a further optimization based on embodiment 3, specifically: Support component 5 is a box-shaped component.

[0043] Specifically, in this solution, the elevation angle tracking support module 4 primarily bears natural wind loads during equipment operation. All loads are transferred to the slewing support 3 via the elevation angle tracking support module 4. In actual projects, the connection point O between the support component 5 and the slewing support 3 is bolted. Besides being subjected to horizontal and vertical forces, this point mainly bears the torque generated at this point under the combined wind force of all photovoltaic modules 7. In actual projects, the bolts at this point have a high rate of loosening and failure, severely impacting equipment reliability. To address this issue, this solution designs the support component 5 as a box-shaped structure, minimizing the distance OA to reduce the torque borne at point O, thereby reducing the load on the connecting bolts and improving equipment reliability.

[0044] Due to the time-varying and unpredictable nature of natural wind forces, the piston rod (elevation angle drive device) will be subjected to alternating impact loads (tension / compression) for extended periods during equipment operation. In practical projects, traditional screw-nut type drive devices often suffer from high failure rates and short lifespans. This solution utilizes a hydraulic drive device to address the load characteristics of the elevation angle drive device, resolving the shortcomings of traditional screw-nut type drive devices in this application scenario.

[0045] Example 5 This embodiment is a further optimization based on embodiment 4, specifically: The photovoltaic mounting frame 6 includes a strip-shaped main crossbeam 6.1 and multiple longitudinal support rod assemblies evenly spaced along the length of the main crossbeam 6.1. Each longitudinal support rod assembly is symmetrically arranged on the main crossbeam 6.1. The main crossbeam 6.1 is connected to the support component 5 through a first hinge mechanism to realize load transfer.

[0046] It also includes two horizontal supports 6.7 symmetrically arranged on both sides of the main crossbeam 6.1, both of which are parallel to the main crossbeam 6.1.

[0047] Each longitudinal support rod assembly includes a secondary beam 6.2 longitudinally positioned above the main crossbeam 6.1, a connecting support 6.5 positioned below the main crossbeam 6.1, and two first inclined supports 6.3 symmetrically positioned on both sides of the connecting support 6.5 via a detachable connection. The ends of the two first inclined supports 6.3 are detachably connected to both ends of the secondary beam 6.2. The photovoltaic module 7 is detachably mounted on multiple secondary beams 6.2 via bolts. A vertical support 6.6 is provided between the first inclined supports 6.3 and the secondary beams 6.2.

[0048] The longitudinal support rod assembly also includes two second inclined supports 6.4 symmetrically arranged on both sides of the connecting support 6.5 via a detachable connection. The ends of the two second inclined supports 6.4 are respectively connected to the middle of the secondary beam 6.2 via a detachable connection.

[0049] Specifically, this solution optimizes the overall structure of the photovoltaic mounting frame 6, such as... Figure 1 The photovoltaic module 7 is installed on multiple secondary beams 6.2. The load is transferred to the main crossbeam 6.1 through the secondary beams 6.2 and the inclined supports (first inclined support 6.3 and second inclined support 6.4). The main crossbeam 6.1 is connected to the support component 5 to realize the load transfer.

Claims

1. A practical dual-axis solar tracking device, characterized in that, It includes an equipment foundation partially located above the ground, a column component set on top of the equipment foundation, a slewing support (3) located on top of the column component, a support component (5) set on top of the slewing support (3), a photovoltaic mounting frame (6) set on the support component (5) via a first hinge mechanism, and a photovoltaic module (7) mounted on the photovoltaic mounting frame (6). The equipment foundation and the column components are integrated, and the support component (5) is provided with a height angle tracking support module (4) that drives the photovoltaic mounting frame (6) to adjust its angle.

2. A practical dual-axis solar tracking device according to claim 1, characterized in that, The equipment foundation includes a first precast concrete pipe pile; part of the first precast concrete pipe pile is located below ground level, and part of the first precast concrete pipe pile is located above ground level.

3. A practical dual-axis solar tracking device according to claim 2, characterized in that, The column component includes a second precast concrete pipe pile and a transition steel column (2) set on top of the second precast concrete pipe pile. The first precast concrete pipe pile and the second precast concrete pipe pile are integrally formed to constitute a precast concrete pipe pile (1).

4. A practical dual-axis solar tracking device according to claim 2, characterized in that, The elevation angle tracking support module (4) is a hydraulic drive component, which includes a hydraulic cylinder, a piston rod disposed in the hydraulic cylinder, and a hydraulic station connected to the hydraulic cylinder via a hydraulic oil pipe. The hydraulic cylinder body is movably mounted on the support component (5) through a third hinge mechanism, and the end of the piston rod is movably mounted on the photovoltaic mounting frame (6) through a second hinge mechanism.

5. A practical dual-axis solar tracking device according to claim 4, characterized in that, The supporting component (5) is a box-shaped component.

6. A practical dual-axis solar tracking device according to claim 5, characterized in that, The first hinge mechanism, the second hinge mechanism, and the third hinge mechanism are not on the same straight line, and the line connecting the first hinge mechanism, the second hinge mechanism, and the third hinge mechanism forms a dynamically changing triangle.

7. A practical dual-axis solar tracking device according to claim 1, characterized in that, The photovoltaic mounting frame (6) includes a strip-shaped main crossbeam (6.1) and a plurality of longitudinal support rod assemblies arranged at equal intervals along the length direction on the main crossbeam (6.1). Each of the longitudinal support rod assemblies is symmetrically arranged on the main crossbeam (6.1). The main crossbeam (6.1) and the support component (5) are connected through the first hinge mechanism to realize load transfer.

8. A practical dual-axis solar tracking device according to claim 7, characterized in that, It also includes two horizontal supports (6.7) symmetrically arranged on both sides of the main crossbeam (6.1), both of which are parallel to the main crossbeam (6.1).

9. A practical dual-axis solar tracking device according to claim 7, characterized in that, Each of the longitudinal support rod assemblies includes a secondary beam (6.2) arranged longitudinally above the main crossbeam (6.1), a connecting support (6.5) arranged below the main crossbeam (6.1), and two first inclined supports (6.3) symmetrically arranged on both sides of the connecting support (6.5) by means of detachable connection. The ends of the two first inclined supports (6.3) are respectively connected to the two ends of the secondary beam (6.2) by means of detachable connection. The photovoltaic module (7) is detachably mounted on the multiple secondary beams (6.2) by bolts. A vertical support (6.6) is provided between the first inclined support (6.3) and the secondary beam (6.2).

10. A practical dual-axis solar tracking device according to claim 9, characterized in that, The longitudinal support rod assembly also includes two second inclined supports (6.4) symmetrically arranged on both sides of the connecting support (6.5) via a detachable connection. The ends of the two second inclined supports (6.4) are respectively connected to the middle of the secondary beam (6.2) via a detachable connection.

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