An end bracket for a flexible tracking bracket

Abstract

This utility model relates to the field of photovoltaic module technology, and in particular to an end bracket for a flexible tracking bracket, including a support assembly, a mounting frame fixed on the support assembly, a rotating shaft rotatably mounted on the mounting frame, a crossbeam fixedly sleeved on the rotating shaft, a driving device for driving the crossbeam to rotate between the crossbeam and the support assembly, a support column fixedly connected to one end of the rotating shaft, and load-bearing cable lugs for installing load-bearing cables fixedly connected to both ends of the crossbeam, and a stabilizing cable hole for installing a stabilizing cable opened on the support column, the load-bearing cable installation axis of the load-bearing cable lugs being parallel to the stabilizing cable installation axis of the stabilizing cable hole being parallel to each other, and the vertical installation position of the stabilizing cable hole being lower than the installation position of the load-bearing cable lugs; this utility model has a reasonable structural design, which enables the stabilizing cable to remain in a parallel state.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module technology, and in particular to an end bracket for a flexible tracking bracket. Background Technology

[0002] Flexible cable-stayed photovoltaic (PV) support structures are a type of support frame for solar power plant modules. They mainly consist of end supports, a central support, and the central cables and wind-resistant system they support. The end supports, as crucial components supporting the main cables, primarily constrain both ends of the main cables and provide the necessary tensioning conditions for prestressing.

[0003] Currently, common end support designs typically employ a beam-type structure, where the ends of multiple main cables are concentrated and fixed on the same beam. For example, Chinese patent publication number CN114785245B discloses a flexible photovoltaic support and photovoltaic system. In this system, two load-bearing cables and one stabilizing cable are fixed on the same beam, and the three cables are connected by a triangular support frame to form a tensioned structure. However, this results in the stabilizing cable exhibiting a low center and high ends.

[0004] A stabilizing cable that is low in the middle and high at both ends will result in uneven tension, making it difficult to resist upwind winds and causing structural buckling and tension imbalance. At the same time, it will damage the stability of the tensioned structure, reduce its resistance to lateral displacement, make the structure prone to swaying and torsion, and aggravate the wear and tear of the connectors. In addition, long-term cumulative deformation will cause photovoltaic module misalignment, affecting efficiency, and node fatigue damage will shorten the system life and increase maintenance costs. Utility Model Content

[0005] The main technical problem to be solved by this utility model is to provide an end bracket for a flexible tracking bracket with a reasonable structural design that enables the stabilizing cable to remain in a parallel state.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] An end bracket for a flexible tracking bracket includes a support assembly, a mounting frame fixed on the support assembly, a rotating shaft rotatably mounted on the mounting frame, a crossbeam fixedly sleeved on the rotating shaft, a drive device for driving the crossbeam to rotate between the crossbeam and the support assembly, a support column fixedly connected to one end of the rotating shaft, and load-bearing cable lugs for mounting load-bearing cables fixedly connected to both ends of the crossbeam, a stabilizing cable hole for mounting a stabilizing cable being formed on the support column, the load-bearing cable mounting axis of the load-bearing cable lugs being parallel to the stabilizing cable mounting axis of the stabilizing cable hole being parallel to each other, and the vertical mounting position of the stabilizing cable hole being lower than the mounting position of the load-bearing cable lugs.

[0008] The following are further optimizations of the above technical solution by this utility model:

[0009] A stabilizing plate is inclinedly installed between the support column and the crossbeam.

[0010] Further optimization: Two cable-stayed assemblies are symmetrically connected to one side of the mounting frame, and the two cable-stayed assemblies are arranged in a figure-eight pattern; the cable-stayed assembly includes a cable, one end of which is connected to the mounting frame through a first connector, and the other end of which is connected to a fixing seat through a second connector, and the fixing seat is fixed to the foundation or pile foundation.

[0011] Further optimization: The mounting frame includes parallel C-shaped steel components and channel steel components, the opening directions of the C-shaped steel components and channel steel components are the same, and mounting plates are fixedly connected inside the cavities of the C-shaped steel components and channel steel components, and their outlines match the inner walls of the corresponding C-shaped steel components; the two side flanges of the channel steel components are inclined.

[0012] Further optimization: A polymer block is provided on the top of the mounting plate, and a bearing hole for installing the rotating shaft is opened in the center of the polymer block. The web plates of the C-shaped steel component and the channel steel component are provided with U-shaped openings corresponding to the bearing hole positions, and the central axis of the U-shaped opening is coaxial with the axis of the bearing hole.

[0013] Further optimization: Multiple sets of connecting screw holes are symmetrically opened on both sides of the polymer block, and multiple sets of fixing holes are symmetrically opened on both sides of the C-shaped steel component and the channel steel component, and the fixing holes correspond one-to-one with the connecting screw holes and are connected by bolts.

[0014] Further optimization: The channel steel component has symmetrically provided cable holes for connecting the cable assembly on both sides of the flange and below the mounting plate.

[0015] Further optimization: A T-shaped reinforcing plate is fixedly connected between the C-shaped steel member and the channel steel member. The T-shaped reinforcing plate includes a transverse connecting part and a vertical supporting part. The transverse connecting part is attached to and fixed to the outer surface of the web of the channel steel member, and the vertical supporting part extends to the inner cavity of the C-shaped steel member and is fixedly connected to the inner surface of its web.

[0016] Further optimization: The load-bearing cable lug plate includes two parallel and opposite support plates. Load-bearing cable holes are symmetrically opened on the two support plates. Two parallel and spaced reinforcing plates are fixedly connected between the two support plates on the upper and lower sides of the load-bearing cable holes, and the reinforcing plates are perpendicularly fixedly connected to the support plates.

[0017] Beneficial effects:

[0018] In this invention, two load-bearing cables and a stabilizing cable are arranged in parallel to form a stable torque-resistant structure, which can effectively resist lateral wind loads and dynamic loads, suppress the torsion or lateral displacement of the crossbeam, and help improve the structural stability of the photovoltaic module during the tracking process.

[0019] This invention uses two load-bearing cable lugs and stabilizing cable holes to ensure that the cable system deforms synchronously when the support rotates, avoiding wear or interference caused by uneven force. At the same time, the lower layer layout of the stabilizing cable can effectively suppress the swaying and vibration of the crossbeam, making it particularly suitable for flexible tracking systems that require frequent adjustments, thereby improving motion accuracy and response speed.

[0020] This invention further enhances anti-tipping capability through the low center of gravity arrangement of the stabilizing cable, making it suitable for harsh environments such as strong winds outdoors. In applications such as solar tracking brackets, this structure can ensure accurate tracking and adjustment, while extending service life and reducing maintenance costs.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure from another angle of an embodiment of the present utility model;

[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This is a schematic diagram of the structure of the mounting bracket in an embodiment of this utility model;

[0027] Figure 5 This is a structural schematic diagram of the crossbeam in an embodiment of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the polymer block in an embodiment of this utility model.

[0029] In the diagram: 1-Support assembly; 2-Mounting frame; 21-C-shaped steel component; 22-Channel steel component; 23-Mounting plate; 24-Polymer block; 25-Bearing hole; 26-U-shaped opening; 27-Connecting screw hole; 28-Fixing hole; 29-Stay cable hole; 30-T-shaped reinforcing plate; 301-Horizontal connection part; 302-Vertical support part; 3-Rotating shaft; 4-Crossbeam; 5-Drive device; 6-Support column; 7-Load-bearing cable lug plate; 71-Support plate; 72-Load-bearing cable hole; 73-Reinforcing plate; 8-Stabilizing cable hole; 9-Stabilizing plate; 10-Stay cable assembly; 101-Stay cable; 102-First connector; 103-Second connector; 104-Fixing seat. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figure 1-6 As shown, an end bracket for a flexible tracking bracket includes a support assembly 1, a mounting frame 2 fixed on the support assembly 1, a rotating shaft 3 rotatably mounted on the mounting frame 2, a crossbeam 4 fixedly sleeved on the rotating shaft 3, a driving device 5 for driving the crossbeam 4 to rotate between the crossbeam 4 and the support assembly 1, a support column 6 fixedly connected to one end of the rotating shaft 3, and load-bearing cable ear plates 7 for installing load-bearing cables fixedly connected to both ends of the crossbeam 4, a stabilizing cable hole 8 for installing a stabilizing cable on the support column 6, the load-bearing cable installation axis of the load-bearing cable ear plate 7 being parallel to the stabilizing cable installation axis of the stabilizing cable hole 8, and the vertical installation position of the stabilizing cable hole 8 being lower than the installation position of the load-bearing cable ear plate 7.

[0032] This design, firstly, arranges the two load-bearing cables and the stabilizing cable in parallel to form a stable torque-resistant structure, which can effectively resist lateral wind loads and dynamic loads, suppress the torsion or lateral displacement of the crossbeam 4, and help improve the structural stability of the photovoltaic module during the tracking process.

[0033] Secondly, the two load-bearing cable lugs 7 and the stabilizing cable holes 8 ensure that the cable system deforms synchronously when the support rotates, avoiding wear or interference caused by uneven force. At the same time, the lower layer layout of the stabilizing cable can effectively suppress the swaying and vibration of the crossbeam 4, which is particularly suitable for flexible tracking systems that require frequent adjustments, improving motion accuracy and response speed.

[0034] Furthermore, the low center of gravity of the stabilizing cable further enhances its anti-tipping ability, making it suitable for harsh environments such as strong winds outdoors. Thus, in applications such as solar tracking brackets, this structure can ensure accurate tracking and adjustment, while extending service life and reducing maintenance costs.

[0035] In this embodiment, the support component 1 can be a foundation structure such as a concrete pile foundation or a steel structure column.

[0036] In this embodiment, the crossbeam 4 and the support column 6 are arranged vertically.

[0037] In this embodiment, the driving device 5 is an electric push rod, and the two ends of the electric push rod are respectively hinged to the crossbeam 4 and the support assembly 1.

[0038] In addition to this embodiment, the drive device 5 may also be one of a hydraulic cylinder, a linear motor, a wire rope winch, or a pneumatic cylinder.

[0039] A stabilizing plate 9 is inclinedly installed between the support column 6 and the crossbeam 4.

[0040] This design, through the diagonally positioned stabilizing plate 9 forming a triangular support structure, effectively enhances the connection stiffness between the beam 4 and the support column 6, while dispersing the torsional load during rotation, thereby improving the overall structural stability and resistance to deformation.

[0041] The load-bearing cable lug 7 includes two parallel and opposite support plates 71. Load-bearing cable holes 72 are symmetrically opened on the two support plates 71, and the axis of the load-bearing cable holes 72 is perpendicular to the plate surface of the support plates 71.

[0042] This design, through the symmetrically arranged support plates 71 and the vertical opening structure, ensures that the direction of force on the load-bearing cable is perpendicular to the support plates 71, achieving optimal force transmission, while avoiding frictional loss between the cable and the hole wall.

[0043] Between the two support plates 71, two parallel and spaced reinforcing plates 73 are fixedly connected on the upper and lower sides of the load-bearing cable hole 72, and the reinforcing plates 73 are fixedly connected to the support plates 71 perpendicularly.

[0044] This design, through the symmetrical vertical reinforcing plates 73 arranged above and below, forms a stable box-shaped support structure, significantly improving the bending stiffness and torsional performance of the ear plate, and effectively preventing the support plate 71 from deforming when the load-bearing cable is under stress.

[0045] Two cable-stayed assemblies 10 are symmetrically connected to the side of the mounting frame 2 away from the support column 6, and the two cable-stayed assemblies 10 are arranged in a figure-eight shape.

[0046] The cable assembly 10 includes a cable 101. One end of the cable 101 is connected to the mounting frame 2 via a first connector 102, and the other end of the cable 101 is connected to a fixing seat 104 via a second connector 103. The fixing seat 104 is fixed to the foundation or pile foundation.

[0047] In this embodiment, the first connector 102 and the second connector 103 adopt U-shaped buckles.

[0048] In addition to this embodiment, the first connector 102 and the second connector 103 may also adopt U-shaped buckles, fork lug structures, universal joint rings, quick-release buckles, etc.

[0049] This design forms a stable spatial triangular support system through the symmetrical arrangement of the cable-stayed components 10 in a figure-eight shape. This effectively balances the lateral load of the mounting frame 2, and the flexible connection of the U-shaped buckle achieves the buffering and absorption of dynamic forces such as wind load. At the same time, it is easy to adjust the cable tension to maintain structural stability.

[0050] In this embodiment, the fixing seat 104 is fixed on the pile foundation, and the fixing seat 104 is pre-embedded in the pile foundation to achieve a fixed connection between the fixing seat 104 and the pile foundation.

[0051] In addition to this embodiment, the fixing seat 104 can be fixed to the upper surface of the pile foundation by fasteners such as bolts.

[0052] The mounting bracket 2 includes C-shaped steel components 21 and channel steel components 22 arranged in parallel and spaced apart. The opening directions of the C-shaped steel components 21 and channel steel components 22 are the same. The mounting plate 23 is fixedly connected to the inner cavity of the C-shaped steel components 21 and channel steel components 22, and its outline matches the inner wall of the corresponding C-shaped steel component.

[0053] A polymer block 24 is provided on the top of the mounting plate 23. A bearing hole 25 for mounting the rotating shaft 3 is opened in the center of the polymer block 24. U-shaped openings 26 are opened on the web plates of the C-shaped steel component 21 and the channel steel component 22 at the positions corresponding to the bearing hole 25. The central axis of the U-shaped opening 26 is coaxial with the axis of the bearing hole 25.

[0054] The polymer block 24 is made of a self-lubricating material and is used to reduce the rotational friction of the shaft 3.

[0055] Multiple sets of connecting screw holes 27 are symmetrically opened on both sides of the polymer block 24. Multiple sets of fixing holes 28 are symmetrically opened on both sides of the C-shaped steel component 21 and the channel steel component 22. The fixing holes 28 correspond one-to-one with the connecting screw holes 27 and are connected by bolts.

[0056] The design uses multiple sets of symmetrically distributed bolts to connect the polymer block 24 and the metal components, which achieves uniform load transfer and avoids stress concentration that could cause the polymer block 24 to crack. The symmetrical layout effectively resists the torque vibration of the rotating shaft 3 and prevents the connection from loosening. At the same time, the bolt group's elasticity adapts to the difference in thermal expansion between the metal and polymer materials, reducing thermal deformation damage and supporting quick disassembly and replacement of worn parts, thereby improving structural stability and maintenance efficiency.

[0057] The two flanges of the channel steel component 22 are inclined, and the two flanges of the channel steel component 22 are symmetrically provided with cable holes 29 below the mounting plate 23. The first connector 102 passes through the cable hole 29.

[0058] With this design, the flanges on both sides of the channel steel component 22 are inclined, which can be adapted to the connection angle of the cable assembly 10 and improve the connection fit. The cable holes 29 symmetrically opened below the mounting plate 23 allow the first connector 102 to pass through. The symmetrical layout ensures the force balance and avoids stress concentration on one side. It also makes the load transmission more stable with the support of the mounting plate 23, thereby enhancing the load-bearing reliability of the overall structure.

[0059] The axial direction of the cable hole 29 is perpendicular to the flange plane of the channel steel component 22, ensuring that the first connector 102 is installed without interference.

[0060] A T-shaped reinforcing plate 30 is fixedly connected between the C-shaped steel component 21 and the channel steel component 22.

[0061] The T-shaped reinforcing plate 30 includes a transverse connecting part 301 and a vertical supporting part 302. The transverse connecting part 301 is attached to and fixed to the outer surface of the web of the channel steel member 22, and the vertical supporting part 302 extends into the inner cavity of the C-shaped steel member 21 and is fixedly connected to the inner surface of its web.

[0062] This design, through the synergistic effect of the transverse connection part 301 and the vertical support part 302 of the T-shaped reinforcing plate 30, not only achieves an efficient rigid connection between the web of the channel steel member 22 and the C-shaped steel member 21, but also significantly enhances the load-bearing capacity and stability of key nodes.

[0063] For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of this utility model, based on the teachings of this utility model, still fall within the protection scope of this utility model.

Claims

1. An end bracket for a flexible tracking bracket, comprising a support assembly (1), a mounting frame (2) fixed on the support assembly (1), a rotating shaft (3) rotatably mounted on the mounting frame (2), a crossbeam (4) fixedly sleeved on the rotating shaft (3), and a driving device (5) for driving the crossbeam (4) to rotate between the crossbeam (4) and the support assembly (1), characterized in that: One end of the rotating shaft (3) is fixedly connected to a support column (6), and both ends of the crossbeam (4) are fixedly connected to load-bearing cable ear plates (7) for installing load-bearing cables. The support column (6) is provided with a stabilizing cable hole (8) for installing a stabilizing cable. The load-bearing cable installation axis of the load-bearing cable ear plate (7) is parallel to the stabilizing cable installation axis of the stabilizing cable hole (8). The stabilizing cable hole (8) is installed at a position lower than the load-bearing cable ear plate (7) in the vertical direction.

2. An end support for a flexible tracking support according to claim 1, characterised in that: A stabilizing plate (9) is inclinedly arranged between the support column (6) and the crossbeam (4).

3. An end support for a flexible tracking support according to claim 1, characterized in that: Two cable assemblies (10) are symmetrically connected to one side of the mounting frame (2), and the two cable assemblies (10) are arranged in a figure-eight shape. The cable assembly (10) includes a cable (101), one end of which is connected to the mounting frame (2) through a first connector (102), and the other end of which is connected to a fixing seat (104) through a second connector (103). The fixing seat (104) is fixed on the foundation or pile foundation.

4. An end support for a flexible tracking support according to claim 1, characterized in that: The mounting bracket (2) includes parallel C-shaped steel members (21) and channel steel members (22). The opening directions of the C-shaped steel members (21) and channel steel members (22) are the same. The inner cavities of the C-shaped steel members (21) and channel steel members (22) are fixedly connected with mounting plates (23), and their outlines match the inner walls of the corresponding C-shaped steel members (21). The two flanges of the channel steel members (22) are inclined.

5. An end support for a flexible tracking support according to claim 4, characterised in that: The top of the mounting plate (23) is provided with a polymer block (24), and the center of the polymer block (24) is provided with a bearing hole (25) for mounting the rotating shaft (3). The web of the C-shaped steel component (21) and the channel steel component (22) are provided with U-shaped openings (26) corresponding to the bearing hole (25), and the central axis of the U-shaped opening (26) is coaxial with the axis of the bearing hole (25).

6. An end support for a flexible tracking support according to claim 5, characterised in that: Multiple sets of connecting screw holes (27) are symmetrically opened on both sides of the polymer block (24). Multiple sets of fixing holes (28) are symmetrically opened on both sides of the C-shaped steel component (21) and the channel steel component (22). The fixing holes (28) correspond one-to-one with the connecting screw holes (27) and are connected by bolts.

7. An end support for a flexible tracking support according to claim 4, characterised in that: The channel steel member (22) has symmetrically provided cable holes (29) for connecting the cable assembly (10) on both sides of the flange and below the mounting plate (23).

8. An end support for a flexible tracking support according to claim 4, characterised in that: A T-shaped reinforcing plate (30) is fixedly connected between the C-shaped steel member (21) and the channel steel member (22). The T-shaped reinforcing plate (30) includes a transverse connecting part (301) and a vertical supporting part (302). The transverse connecting part (301) is attached to the outer surface of the web of the channel steel member (22), and the vertical supporting part (302) extends into the inner cavity of the C-shaped steel member (21) and is fixedly connected to the inner surface of its web.

9. An end support for a flexible tracking support according to claim 1, characterized in that: The load-bearing cable lug (7) includes two parallel and opposite support plates (71), and load-bearing cable holes (72) are symmetrically opened on the two support plates (71). Two parallel and spaced reinforcing plates (73) are fixedly connected between the two support plates (71) on the upper and lower sides of the load-bearing cable holes (72), and the reinforcing plates (73) are vertically fixedly connected to the support plates (71).

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