Photovoltaic tracking system with global self-locking function

Abstract

The utility model discloses a kind of photovoltaic tracking systems with global self-locking function, including main girder, several columns, rotary driver, several self-locking components and solar panel;Column includes a drive column and several non-drive columns, rotary driver is installed in drive column, rotary driver is used to drive main girder rotation, and main girder is installed in non-drive column by self-locking component;Self-locking component includes self-locking limit seat and limit rotating member, limit rotating member is sleeved in the outer periphery of main girder, self-locking limit seat is installed in non-drive column, limit rotating member is rotatably installed in the inside of self-locking limit seat, and it is equipped with limit structure between self-locking limit seat and limit rotating member, limit structure is used to limit the rotation of limit rotating member to limit the rotation range of main girder. By setting self-locking component with limit structure at non-drive column, the deflection amplitude of main girder under strong wind is effectively limited, and the shear force, torque and bending moment borne by non-drive column are synchronously constrained.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic tracking system technology, and in particular to a photovoltaic tracking system with a global self-locking function. Background Technology

[0002] Existing photovoltaic (PV) tracking systems integrate motor drive units, environmental monitoring modules, and closed-loop control systems to achieve dynamic tracking of solar panels to improve photoelectric conversion efficiency. Under strong wind conditions, the industry generally employs two wind-resistant strategies: first, using electric actuators to drive the PV array to a low tilt angle or horizontal position to reduce wind pressure; second, utilizing the mechanical self-locking device of the drive system to rigidly fix the main beam position. However, existing improvement solutions still have problems.

[0003] The sides of the main beam furthest from the drive columns (the columns where the drive motor is mounted) lack effective limiting devices. The further away from the drive columns, the greater the likelihood of deflection due to wind forces. This leads to instability in the stress on the corresponding non-drive columns, potentially causing fatigue or brittle failure due to complex stress states (shear force, torque, and bending moment coupling). Furthermore, torque differences between columns can cause uneven settlement or torsional deformation of the main beam, affecting the normal functioning of the structure and the overall stability of the system. Utility Model Content

[0004] In response to the problems raised in the background technology, the purpose of this utility model is to propose a photovoltaic tracking system with a global self-locking function, which solves the problem that the main beam of the existing photovoltaic tracking system does not have a rotation angle self-locking function, and the system is easily damaged due to excessive rotation.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A photovoltaic tracking system with full-range self-locking function includes a main beam, several columns, a rotary actuator, several self-locking components, and solar panels;

[0007] The columns extend vertically, the main beam extends horizontally, the main beam is rotatably mounted on a plurality of the columns along its axis, and the solar panel is mounted on the main beam;

[0008] The column includes a driving column and several non-driving columns. The rotary actuator is installed on the driving column and is used to drive the main beam to rotate. Several self-locking components are respectively installed on several non-driving columns. The main beam is installed on the non-driving columns through the self-locking components.

[0009] The self-locking assembly includes a self-locking limiting seat and a limiting rotating member. The limiting rotating member is sleeved on the outer periphery of the main beam. The self-locking limiting seat is installed on the non-driving column. The limiting rotating member is rotatably installed inside the self-locking limiting seat. A limiting structure is provided between the self-locking limiting seat and the limiting rotating member. The limiting structure is used to restrict the rotation of the limiting rotating member, thereby limiting the rotation range of the main beam.

[0010] Preferably, the limiting structure is a slider, which is disposed at one end of the limiting rotating member;

[0011] The self-locking limiting seat is provided with a limiting groove, and the slider is limited and slidably disposed within the limiting groove.

[0012] Preferably, the limiting rotation component includes an upper bearing body and a lower bearing body, the upper bearing body is installed above the lower bearing body, and a main beam clamping cavity is formed between the upper bearing body and the lower bearing body, the main beam clamping cavity being used to clamp the outer periphery of the main beam.

[0013] Preferably, the self-locking limiting seat includes an upper self-locking limiting seat and a lower self-locking limiting seat, the upper self-locking limiting seat is installed above the lower self-locking limiting seat, a bearing cavity is formed between the upper self-locking limiting seat and the lower self-locking limiting seat, and the limiting rotating member is rotatably disposed in the bearing cavity.

[0014] Preferably, the upper self-locking limiting seat and the lower self-locking limiting seat are respectively provided with the limiting groove, and the limiting groove provided in the upper self-locking limiting seat and the limiting groove provided in the lower self-locking limiting seat are centrally symmetrical;

[0015] The upper bearing body and the lower bearing body are respectively provided with the slider, and the slider provided on the upper bearing body and the slider provided on the lower bearing body are centrally symmetrical.

[0016] Preferably, it further includes a bearing housing mounting base, the bearing housing mounting base including a column mounting part and two bearing mounting parts, the two bearing mounting parts being disposed above the column mounting part, the bearing mounting parts extending upward and outward, and the bearing housing mounting base being Y-shaped;

[0017] The column mounting part is connected to the non-drive column, and the two bearing mounting parts are respectively connected to the left and right sides of the self-locking limit seat.

[0018] Preferably, the self-locking limiting seat is provided with balancing protrusions on both the left and right sides, and the straight line where the balancing protrusions on both sides are located is perpendicular to the axis of the main beam;

[0019] The top surface of the bearing mounting part is provided with a lower groove, and the cylindrical protrusion is installed in the lower groove through a mounting component. The balance protrusions on both sides are respectively rotatably disposed in the lower grooves on both sides.

[0020] Preferably, the balancing protrusion is composed of an upper semi-cylindrical protrusion and a lower semi-cylindrical protrusion, with the two upper semi-cylindrical protrusions respectively located on the left and right sides of the upper self-locking limiting seat, and the two lower semi-cylindrical protrusions respectively located on the left and right sides of the lower self-locking limiting seat.

[0021] The mounting component includes a pressure block and several bolts. The pressure block has an upper groove, and both the lower groove and the upper groove are semi-circular arc grooves. The upper groove is connected to the upper semi-cylindrical protrusion, and the groove is connected to the lower semi-cylindrical protrusion. Several bolts pass through the pressure block and are connected to the bearing mounting part.

[0022] Preferably, it further includes at least one damping component, the damping component including a clamping part, a damping telescopic arm and a fixing part;

[0023] The clamping part is installed on the outer periphery of the main beam, the fixing part is installed on the column, the upper end of the damping telescopic arm is hinged to the clamping part, and the lower end of the damping telescopic arm is connected to the fixing part.

[0024] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0025] 1. By setting a self-locking component with a limiting structure at the non-driving column, the torque distribution range when the main beam rotates is expanded from a single driving point to multiple support points, eliminating the torque concentration phenomenon at the far end column.

[0026] 2. The deflection of the main beam under strong winds is effectively limited, and the shear force, torque and bending moment borne by the non-driving columns are simultaneously constrained, avoiding column cracking or main beam deformation caused by stress concentration.

[0027] 3. The torque difference between different sections of the main beam is significantly reduced, the overall structural stability is improved, and the system's wind resistance performance under extreme weather conditions is enhanced. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0029] Figure 2 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0030] Figure 3 This is an assembly diagram of the self-locking component, main beam, and column of this utility model;

[0031] Figure 4 yes Figure 3 An explosion diagram;

[0032] Figure 5 yes Figure 4 Front view;

[0033] Figure 6 This is a schematic diagram of the cooperation between the self-locking limiting seat and the bearing seat mounting seat of this utility model (the main beam is in a forward and backward tilted state).

[0034] The components include: main beam 1, column 2, drive column 21, non-drive column 22, rotary drive 3, self-locking assembly 4, self-locking limit seat 41, bearing cavity 410, upper self-locking limit seat 411, lower self-locking limit seat 412, limit rotating part 42, main beam clamping cavity 420, upper bearing body 421, lower bearing body 422, limit structure 43, limit groove 431, slider 432, balance protrusion 44, upper semi-cylindrical protrusion 441, lower semi-cylindrical protrusion 442, solar panel 5, bearing seat mounting base 6, column mounting part 61, bearing mounting part 62, lower groove 621, mounting part 7, pressure block 71, upper groove 711, bolt 72, damping assembly 8, clamping part 81, damping telescopic arm 82, and fixing part 83. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0036] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0037] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," and "third" may explicitly or implicitly include one or more of that feature.

[0038] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] The following is in conjunction with the appendix Figures 1 to 6 The technical solution of this utility model will be further illustrated through specific implementation methods.

[0040] A photovoltaic tracking system with full-range self-locking function includes a main beam 1, several columns 2, a rotary actuator 3, several self-locking components 4, and a solar panel 5;

[0041] The column 2 extends vertically, the main beam 1 extends horizontally, the main beam 1 is rotatably mounted on a plurality of the columns 2 along its axis, and the solar panel 5 is mounted on the main beam 1;

[0042] The column 2 includes a driving column 21 and several non-driving columns 22. The rotary drive 3 is installed on the driving column 21 and is used to drive the main beam 1 to rotate. Several self-locking components 4 are respectively installed on several non-driving columns 22. The main beam 1 is installed on the non-driving columns 22 through the self-locking components 4.

[0043] The self-locking assembly 4 includes a self-locking limiting seat 41 and a limiting rotating member 42. The limiting rotating member 42 is sleeved on the outer periphery of the main beam 1. The self-locking limiting seat 41 is installed on the non-driving column 22. The limiting rotating member 42 is rotatably installed inside the self-locking limiting seat 41. A limiting structure 43 is provided between the self-locking limiting seat 41 and the limiting rotating member 42. The limiting structure 43 is used to limit the rotation of the limiting rotating member 42, thereby limiting the rotation range of the main beam 1.

[0044] In existing technologies, photovoltaic tracking systems improve power generation efficiency by dynamically adjusting the angle of solar panels. However, in strong winds, the portion of the main beam furthest from the drive column is prone to deflection due to the lack of effective limiting devices. This causes the non-drive column to experience the coupled effects of shear force, torque, and bending moment, leading to structural fatigue or deformation and affecting the overall stability of the system. For example, when a photovoltaic power station encountered strong winds, abnormal torsional displacement occurred at the end of the main beam, resulting in cracks at the connection of the non-drive column.

[0045] To address the aforementioned issues, it was found that the torque transmission to the non-drive column 21 during the rotation of the main beam 1 lacked constraint, and the complex stress state borne by the non-drive column 22 was not effectively controlled. Analysis of the correlation between the deflection of the main beam 1 and the force on the column 2 revealed the need for a device at the non-drive column 22 to limit the rotation range, thereby dispersing torque transmission and balancing the forces on each column. Therefore, this invention proposes a photovoltaic tracking system comprising a main beam 1, a column 2, a rotary actuator 3, a self-locking assembly 4, and a solar panel 5. The main beam 1 is horizontally mounted on the vertical column 2 and rotated by the rotary actuator 3. The self-locking assembly 4 is installed at the non-drive column 22 and includes a self-locking limit seat 41 and a limiting rotating component 42. The limiting rotating component 42 is sleeved around the outer periphery of the main beam 1 and a limiting structure 43 is provided between it and the self-locking limit seat 41. The main beam 1 refers to the horizontal support structure bearing the solar panel 5, which can be implemented using a hollow steel beam or aluminum alloy profile, and is used to transmit the torque output by the rotary actuator 3. Column 2 refers to the vertical support component, which can be implemented using a combination of a concrete base and a steel column, used to fix the rotation axis of the main beam 1. Rotary actuator 3 refers to the power output device, which can be implemented using a worm gear reducer motor, used to drive the main beam 1 to rotate around its axis. Self-locking limit seat 41 refers to the bearing fixing seat installed on the top of column 2, used to support the limiting rotating component 42. Limiting rotating component 42 refers to the rotating support component sleeved on the outer circumference of the main beam 1, used to reduce the frictional resistance when the main beam 1 rotates. Limiting structure 43 refers to the mechanical device that constrains the rotation angle of the main beam 1, used to prevent the main beam 1 from deflecting beyond its range.

[0046] Specifically, the main beam 1 is connected to the drive column 21 via a rotary actuator 3, and the non-drive column 22 supports the main beam 1 via a self-locking assembly 4. When the main beam 1 deflects due to wind force, the limiting rotating component 42 rotates within the self-locking limiting seat 41, at which time the limiting structure 43 restricts the range (angle) of rotation of the main beam 1. Thus, the torque borne by the non-drive column 22 is limited within a predetermined range, and the torque difference between the columns 2 is controlled.

[0047] Compared with existing technologies, existing solutions only install self-locking devices to lock the main beam on the driving columns, while the non-driving columns only serve to support the main beam. The solution provided by this invention installs self-locking components with limiting structures 43 at all non-driving columns 22, expanding the torque distribution range of the main beam 1 during rotation from a single driving point to multiple support points, eliminating torque concentration at the far-end columns 2. Through this technical solution, the deflection amplitude of the main beam 1 under strong winds is effectively limited, and the shear force, torque, and bending moment borne by the non-driving columns 22 are simultaneously constrained, preventing stress concentration that could lead to cracking of the columns 2 or deformation of the main beam 1. The torque difference between different sections of the main beam 1 is significantly reduced, the overall structural stability is improved, and the system's wind resistance performance under extreme weather conditions is enhanced.

[0048] Furthermore, the limiting structure 43 is a slider 432, which is disposed at one end of the limiting rotating member 42;

[0049] The self-locking limiting seat 41 is provided with a limiting groove 431, and the slider 432 is limited and slidably disposed in the limiting groove 431.

[0050] The limiting groove 431 refers to the groove inside the self-locking limiting seat 41. Specifically, it can be formed into a guide track within the self-locking limiting seat 41 by milling or casting. This groove restricts the sliding path of the slider 432, thereby controlling the maximum rotation angle of the main beam 1. The slider 432 refers to the protruding structure on the outer edge of the limiting rotating component 42. Specifically, it can be connected to the limiting rotating component 42 by welding or bolting. It cooperates with the limiting groove 431 to achieve sliding limitation, preventing the main beam 1 from exceeding the preset rotation range through mechanical contact.

[0051] Specifically, the limiting groove 431 extends circumferentially along the self-locking limiting seat 41, and the curvature of its extension determines the allowable rotation angle range of the main beam 1. The slider 432 is embedded in the limiting groove 431. When the main beam 1 drives the limiting rotating component 42 to rotate, the slider 432 slides along the limiting groove 431 until it reaches the end of the groove, at which point the main beam 1 stops rotating. This mechanical limiting method avoids excessive deflection of the main beam 1 under wind force or external load, while ensuring that the torque distribution borne by each non-driving column 22 is uniform.

[0052] Furthermore, the limiting rotating member 42 includes an upper bearing body 421 and a lower bearing body 422. The upper bearing body 421 is mounted above the lower bearing body 421. A main beam clamping cavity 420 is formed between the upper bearing body 421 and the lower bearing body 422. The main beam clamping cavity 420 is used to clamp the outer periphery of the main beam 1.

[0053] The upper bearing body 421 and the lower bearing body 422 refer to the two symmetrical components constituting the limiting rotation component 42. Specifically, they can be implemented using a split design, which facilitates clamping and fixing during the assembly of the main beam 1. The main beam clamping cavity 420 refers to the annular space formed by the combination of the upper bearing body 421 and the lower bearing body 422. Specifically, it can be achieved by using semi-annular grooves joined together to form a closed cavity, which can enclose the outer circumference of the main beam 1 to provide circumferential constraint. The semi-annular structure refers to the cross-sectional shape of the bearing body. Specifically, it can be formed by combining two symmetrical arc-shaped components to form a complete ring. This split design facilitates the installation and disassembly of the main beam 1 and maintains clamping stability.

[0054] Specifically, the upper bearing body 421 and the lower bearing body 422 are bolted together to form a complete annular limiting rotating component 42, and the main beam 1 is enclosed within the main beam clamping cavity 420 formed by the two. When the main beam 1 rotates under wind force, the split bearing body decomposes the torsional force of the main beam 1 into symmetrically distributed radial pressure, which is evenly transmitted to the self-locking limiting seat 41. Preferably, a semi-annular design with the same structure is adopted, which allows the upper and lower bearing bodies to be interchanged at will during installation, reducing assembly difficulty and ensuring the symmetry of force on both sides.

[0055] Furthermore, the self-locking limiting seat 41 includes an upper self-locking limiting seat 411 and a lower self-locking limiting seat 412. The upper self-locking limiting seat 411 is installed above the lower self-locking limiting seat 412. A bearing cavity 410 is formed between the upper self-locking limiting seat 411 and the lower self-locking limiting seat 412. The limiting rotating member 42 is rotatably disposed in the bearing cavity 410.

[0056] The upper self-locking limit seat 411 is a split component installed on top of the lower self-locking limit seat 412. Specifically, it can be formed into a semi-annular structure using a split casting process, and is used to create a closed space together with the lower self-locking limit seat 412. The lower self-locking limit seat 412 is a support component fixed to the top of the non-drive column 22. Specifically, it can be bolted to the top of the column using a bearing seat mounting base, and is used to bear the radial load generated when the main beam 1 rotates. The bearing cavity 410 is an annular cavity formed by the upper self-locking limit seat 411 and the lower self-locking limit seat 412. Specifically, it can be formed by joining the two semi-annular components to form a complete circular cavity, used to accommodate the limiting rotating component 42 and provide rotational freedom.

[0057] Specifically, the upper self-locking limit seat 411 is fastened to the lower self-locking limit seat 412 with bolts to form a closed structure. The limiting rotating component 42 installed inside the bearing cavity 410 is sleeved on the outer periphery of the main beam 1 along the axial direction of the main beam. When the main beam 1 is driven to rotate by the rotary actuator 3, the limiting rotating component 42 rotates circumferentially around the axis of the main beam within the bearing cavity 410. Because the bearing cavity 410 constrains the radial displacement of the limiting rotating component 42, the load distribution of each non-driving column 22 tends to be uniform during the rotation of the main beam 1.

[0058] Compared to existing technologies, traditional integral bearing housings require on-site welding or overall hoisting, while split upper and lower self-locking bearing housings allow for modular installation, reducing construction difficulty. In existing technologies, single-piece bearing housings make it difficult to maintain the internal bearing components, while the split structure allows for quick disassembly of the upper self-locking bearing housing for bearing maintenance.

[0059] Furthermore, the upper self-locking limiting seat 411 and the lower self-locking limiting seat 412 are respectively provided with the limiting groove 431, and the limiting groove 431 provided in the upper self-locking limiting seat 411 and the limiting groove 431 provided in the lower self-locking limiting seat 412 are centrally symmetrical.

[0060] The upper bearing body 421 and the lower bearing body 422 are respectively provided with the slider 432, and the slider 432 provided on the upper bearing body 421 and the slider 432 provided on the lower bearing body 422 are centrally symmetrical.

[0061] When the main beam 1 deflects due to wind force, the upper bearing body 421 and lower bearing body 422 of the limiting rotating component 42 slide in the corresponding limiting groove 431 via the slider 432. Due to the centrally symmetrical layout of the upper and lower limiting grooves 431, the limiting groove 431 of the upper self-locking limiting seat 411 and the limiting groove 431 of the lower self-locking limiting seat 412 form complementary constraints. The slider 432 of the upper bearing body 421 and the slider 432 of the lower bearing body 422 are always in a symmetrical force state during rotation, thereby avoiding excessive shear force on one side of the slider, which could lead to structural deformation.

[0062] Furthermore, it also includes a bearing housing mounting base 6, which includes a column mounting part 61 and two bearing mounting parts 62. The two bearing mounting parts 62 are located above the column mounting part 61 and extend upward and outward. The bearing housing mounting base 6 is Y-shaped.

[0063] The column mounting part 61 is connected to the non-drive column 22, and the two bearing mounting parts 62 are respectively connected to the left and right sides of the self-locking limiting seat 41.

[0064] The bearing housing mounting base 6 refers to the support structure used to support and fix the self-locking limiting seat 41. It can be manufactured using casting or welding processes and consists of a column mounting part 61 and two outwardly extending bearing mounting parts 62, forming a Y-shaped layout to distribute the torque generated when the main beam 1 rotates. The column mounting part 61 is the part that connects to the column 2, specifically by bolts or welding to the top of the non-driving column 22, serving to transfer the load. The bearing mounting parts 62 are used to fix the self-locking limiting seat 41, and can be symmetrically distributed above the column mounting part 61, extending outwards at an angle, forming a stable triangular support structure by connecting the left and right sides of the self-locking limiting seat 41.

[0065] Specifically, the Y-shaped bearing housing mounting base 6 ensures that when the self-locking limiting seat 41 bears the torque generated by the rotation of the main beam 1, the load is evenly distributed to the two bearing mounting parts 62, and then dispersed to the non-drive column 22. At the same time, the outward extension of the bearing mounting parts 62 increases the support span, suppresses the lateral displacement of the main beam 1 caused by wind, and reduces stress concentration in the non-drive column 22.

[0066] Furthermore, the self-locking limiting seat 41 is provided with balancing protrusions 44 on both the left and right sides, and the straight line where the balancing protrusions 44 on both sides are located is perpendicular to the axis of the main beam 1.

[0067] The bearing mounting part 62 has a lower groove 621 on its top surface. The cylindrical protrusion 44 is mounted on the lower groove 621 by the mounting part 7. The balance protrusions 44 on both sides are rotatably mounted on the lower grooves 621 on both sides.

[0068] After the balance protrusions 44 on both sides of the self-locking limit seat 41 are combined with the lower groove 621 and pressed onto the bearing seat mounting seat 6 by the mounting part 7, the main beam 1 can adapt to a certain height difference between the two adjacent columns 2 during installation by swinging at a certain angle in the horizontal direction (front and back direction), thus achieving the effect of adaptive slope.

[0069] Furthermore, the balancing protrusion 44 is composed of an upper semi-cylindrical protrusion 441 and a lower semi-cylindrical protrusion 442. The two upper semi-cylindrical protrusions 441 are respectively located on the left and right sides of the upper self-locking limiting seat 411, and the two lower semi-cylindrical protrusions 442 are respectively located on the left and right sides of the lower self-locking limiting seat 412.

[0070] The mounting component 7 includes a pressure block 71 and a plurality of bolts 72. The pressure block 71 is provided with an upper groove 711. The lower groove 621 and the upper groove 711 are both semi-circular arc grooves. The upper groove 711 is connected to the upper semi-cylindrical protrusion 441, and the lower groove 621 is connected to the lower semi-cylindrical protrusion 442. The plurality of bolts 72 pass through the pressure block 71 and are connected to the bearing mounting part 62.

[0071] Mounting component 7 refers to the connecting component used to fix the balancing protrusion 44 and the bearing housing mounting base 6. Specifically, it can adopt a combination structure of a pressure block 71 with a semi-circular groove and bolts. The balancing protrusion 44 is clamped by the upper groove 711 and the lower groove 621 to ensure the connection stability between the self-locking limit seat 41 and the bearing housing mounting base 6.

[0072] Furthermore, it also includes at least one damping component 8, which includes a clamping part 81, a damping telescopic arm 82, and a fixing part 83;

[0073] The clamping part 81 is installed on the outer periphery of the main beam 1, the fixing part 83 is installed on the column 2, the upper end of the damping telescopic arm 82 is hinged to the clamping part 81, and the lower end of the damping telescopic arm 82 is connected to the fixing part 83.

[0074] The clamping part 81 refers to a component fixed to the outer periphery of the main beam 1 by a mechanical structure. Specifically, it can be implemented using a ring clamp or a split-type clamp structure. The clamping part 81 must form stable contact with the surface of the main beam 1 to prevent slippage. The damping telescopic arm 82 refers to a support arm with telescopic characteristics and built-in damping medium. Specifically, it can be implemented using a hydraulic damper or a pneumatic buffer. Its telescopic movement is accompanied by damping force to dissipate vibration energy. The fixing part 83 refers to the support base installed on the column 2. Specifically, it can be fixed to the surface of the column 2 by bolt connection or welding to ensure the installation stability of the damping assembly 8.

[0075] Specifically, when the main beam 1 deflects due to wind force, the clamping part 81 transmits the deflection to the damping telescopic arm 82. The damping telescopic arm 82 generates reverse resistance through its telescopic movement, suppressing the deflection response speed of the main beam 1 and preventing damage to the main beam 1 due to instantaneous torsion caused by strong winds. The fixing part 83 transmits the damping force to the column 2, forming a dynamic constraint between the main beam 1 and the column 2, reducing torque fluctuations of the main beam 1 in the non-driving column 22 area.

[0076] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A photovoltaic tracking system with global self-locking function, characterized in that: It includes the main beam, several columns, a rotary actuator, several self-locking components, and solar panels; The columns extend vertically, the main beam extends horizontally, the main beam is rotatably mounted on a plurality of the columns along its axis, and the solar panel is mounted on the main beam; The column includes a driving column and several non-driving columns. The rotary actuator is installed on the driving column and is used to drive the main beam to rotate. Several self-locking components are respectively installed on several non-driving columns. The main beam is installed on the non-driving columns through the self-locking components. The self-locking assembly includes a self-locking limiting seat and a limiting rotating member. The limiting rotating member is sleeved on the outer periphery of the main beam. The self-locking limiting seat is installed on the non-driving column. The limiting rotating member is rotatably installed inside the self-locking limiting seat. A limiting structure is provided between the self-locking limiting seat and the limiting rotating member. The limiting structure is used to restrict the rotation of the limiting rotating member, thereby limiting the rotation range of the main beam.

2. A photovoltaic tracking system with global self-locking function according to claim 1, characterized in that: The limiting structure is a slider, which is disposed at one end of the limiting rotating member; The self-locking limiting seat is provided with a limiting groove, and the slider is limited and slidably disposed within the limiting groove.

3. A photovoltaic tracking system with global self-locking function according to claim 2, characterized in that: The limiting rotating component includes an upper bearing body and a lower bearing body. The upper bearing body is installed above the lower bearing body. A main beam clamping cavity is formed between the upper bearing body and the lower bearing body. The main beam clamping cavity is used to clamp the outer periphery of the main beam.

4. A photovoltaic tracking system with global self-locking function according to claim 3, characterized in that: The self-locking limiting seat includes an upper self-locking limiting seat and a lower self-locking limiting seat. The upper self-locking limiting seat is installed above the lower self-locking limiting seat. A bearing cavity is formed between the upper self-locking limiting seat and the lower self-locking limiting seat. The limiting rotating member is rotatably disposed in the bearing cavity.

5. A photovoltaic tracking system with global self-locking function according to claim 4, characterized in that: The upper self-locking limiting seat and the lower self-locking limiting seat are respectively provided with the limiting groove, and the limiting groove provided in the upper self-locking limiting seat and the limiting groove provided in the lower self-locking limiting seat are centrally symmetrical. The upper bearing body and the lower bearing body are respectively provided with the slider, and the slider provided on the upper bearing body and the slider provided on the lower bearing body are centrally symmetrical.

6. A photovoltaic tracking system with global self-locking function according to claim 5, characterized in that: It also includes a bearing housing mounting base, which includes a column mounting part and two bearing mounting parts. The two bearing mounting parts are located above the column mounting part and extend upward and outward. The bearing housing mounting base is Y-shaped. The column mounting part is connected to the non-drive column, and the two bearing mounting parts are respectively connected to the left and right sides of the self-locking limit seat.

7. A photovoltaic tracking system with global self-locking function according to claim 6, characterized in that: The self-locking limiting seat is provided with balancing protrusions on both the left and right sides, and the straight line where the balancing protrusions on both sides are located is perpendicular to the axis of the main beam. The top surface of the bearing mounting part is provided with a lower groove, and the balance protrusion is installed in the lower groove through the mounting part. The balance protrusions on both sides are respectively rotatably disposed in the lower grooves on both sides.

8. A photovoltaic tracking system with global self-locking function according to claim 7, characterized in that: The balancing protrusion consists of an upper semi-cylindrical protrusion and a lower semi-cylindrical protrusion. The two upper semi-cylindrical protrusions are respectively located on the left and right sides of the upper self-locking limiting seat, and the two lower semi-cylindrical protrusions are respectively located on the left and right sides of the lower self-locking limiting seat. The mounting component includes a pressure block and several bolts. The pressure block has an upper groove, and both the lower groove and the upper groove are semi-circular arc grooves. The upper groove is connected to the upper semi-cylindrical protrusion, and the groove is connected to the lower semi-cylindrical protrusion. Several bolts pass through the pressure block and are connected to the bearing mounting part.

9. A photovoltaic tracking system with global self-locking function according to claim 8, characterized in that: It also includes at least one damping component, which includes a clamping part, a damping telescopic arm, and a fixing part; The clamping part is installed on the outer periphery of the main beam, the fixing part is installed on the column, the upper end of the damping telescopic arm is hinged to the clamping part, and the lower end of the damping telescopic arm is connected to the fixing part.

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