A double-layer multi-cable flexible tracking bracket driven by a rotary reducer

Abstract

This utility model relates to the field of photovoltaic equipment technology, specifically to a double-layer multi-cable flexible tracking bracket driven by a rotary reducer. It includes a cable assembly comprising two parallel load-bearing cables and a stabilizing cable located below the load-bearing cables. Two end columns are provided at both ends of the cable assembly. At least one central column is provided along the extension direction of the cable assembly and between the two end columns. End rotating beam assemblies and central rotating beam assemblies are respectively arranged above the end columns and central column to support and maintain the two load-bearing cables and the stabilizing cable in parallel space. Multiple stabilizing frames are spaced along the length of the cable assembly to reinforce the parallel state of the two load-bearing cables and the stabilizing cable. Rotary reducers are provided between the end columns and the end rotating beam assemblies, and between the central column and the central rotating beam assemblies. This utility model has a reasonable structural design and can effectively solve the problems of uneven cable tension and insufficient wind resistance stability.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic equipment technology, specifically to a double-layer multi-cable flexible tracking bracket driven by a rotary reducer. Background Technology

[0002] With the rapid development of photovoltaic power generation technology, flexible photovoltaic tracking brackets have become an important research direction in the photovoltaic field due to their lightweight structure, high cost-effectiveness, and strong terrain adaptability. Traditional flexible photovoltaic systems track the sun's movement by adjusting the angle of the photovoltaic panels, effectively improving the light-receiving area and power generation efficiency. However, these systems have significant shortcomings in wind resistance, especially under strong wind conditions, where the photovoltaic panels and supporting structures are easily affected by wind suction and uplift, leading to reduced stability or even structural damage.

[0003] To address wind resistance issues, traditional solutions typically employ a design where wind-resistant supports are connected to ground anchors via vertical cables to limit vertical displacement of the supports under wind loads. However, this approach has significant drawbacks: the bottom of the wind-resistant support requires curved members, and the angle adjustment of the photovoltaic panels relies on a sliding mechanism working in conjunction with the vertical cables. Under strong wind conditions, the sliding mechanism is prone to jamming, affecting not only structural stability but also interfering with the normal rotation and adjustment of the photovoltaic panels.

[0004] To address the aforementioned issues, existing technologies, such as patent CN119298822B, propose an improved solution, but it employs a beam-type centralized fixing structure. This design centrally fixes the ends of multiple main cables, including load-bearing and stabilizing cables, to the same beam, and connects the load-bearing and stabilizing cables via a wind-resistant frame to form a tensioned structure. However, this configuration results in the stabilizing cables exhibiting a distribution that is low in the middle and high at both ends. This not only leads to uneven tension, making it difficult to resist upwind winds and causing structural buckling and tension imbalance, but also compromises the stability of the tensioned structure, reduces its resistance to lateral displacement, makes the structure prone to swaying and torsion, and exacerbates wear on connectors. Furthermore, long-term cumulative deformation can cause photovoltaic module misalignment, affecting efficiency, and node fatigue damage can shorten system lifespan and increase maintenance costs. Utility Model Content

[0005] The main technical problem to be solved by this utility model is to provide a double-layer multi-cable flexible tracking bracket driven by a rotary reducer, which has a reasonable structural design and can effectively solve the problems of uneven cable tension and insufficient wind resistance stability.

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

[0007] A double-layer multi-cable flexible tracking support driven by a rotary reducer includes a cable assembly. The cable assembly includes two parallel load-bearing cables and a stabilizing cable located below the load-bearing cables. Two end columns are provided at both ends of the cable assembly along its extension direction. At least one middle column is provided in the extension direction of the cable assembly and between the two end columns. End rotating beam assemblies and middle rotating beam assemblies are respectively arranged above the end columns and the middle column to support and maintain the two load-bearing cables and the stabilizing cable in parallel space. Multiple stabilizing frames are arranged at intervals along the length of the cable assembly to reinforce the parallel state of the two load-bearing cables and the stabilizing cable. A rotary reducer is provided between the end columns and the end rotating beam assemblies, and between the middle column and the middle rotating beam assemblies, to drive the corresponding rotating beam assemblies to rotate.

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

[0009] The rotary reducer is fixedly installed on the top of the end column or the middle column by a mounting base, and the power output end of the rotary reducer is connected to the corresponding end rotating beam assembly or the middle rotating beam assembly.

[0010] Further optimization: The end rotating beam assembly includes an end load-bearing cable fixing beam fixedly connected to the power output end of the rotary reducer, and the end load-bearing cable fixing beam is fixedly connected to two load-bearing cables.

[0011] Further optimization: At least one end stabilizing cable fixing beam is provided on the side wall of the end load-bearing cable fixing beam, and the end stabilizing cable fixing beam is fixedly connected to the stabilizing cable.

[0012] Further optimization: The two parallel, spaced-apart central load-bearing cable fixing beams are respectively fixedly connected to each other near their ends, so that the two central load-bearing cable fixing beams and the two connecting beams together form a rectangular frame; and the rotary reducer fixedly installed on the top of the central column is located inside the rectangular frame, and the power output end of the rotary reducer is fixedly connected to one of the central load-bearing cable fixing beams, which are connected to the two load-bearing cables.

[0013] Further optimization: At least one central stabilizing cable fixing beam is provided on the side walls of the central load-bearing cable fixing beams that are opposite to each other, and the central stabilizing cable fixing beams are fixedly connected to the stabilizing cables.

[0014] Further optimization: The stabilizing frame includes a rigid frame consisting of at least three rods. Each corner of the rigid frame is provided with an installation component, which is connected to the load-bearing cable or the stabilizing cable respectively, and all corners are located in the same plane.

[0015] Further optimizations include cable-stayed assembly, which is set on the opposite side of the two end columns. The first end is connected to the corresponding mounting base, and the second end is connected to the foundation or pile foundation.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention uses end and middle rotating beam assemblies to support and maintain the spatial parallelism between the load-bearing cable and the stabilizing cable. Combined with the reinforcement of the stabilizing frame, this effectively prevents the stabilizing cable from exhibiting a low-middle, high-end shape, ensuring uniform tension distribution across the cables. This effectively resists upwind conditions and reduces structural buckling and tension imbalance. Simultaneously, the parallelism of the cables and the reinforcement of the stabilizing frame guarantee the stability of the tensioned structure, enhance resistance to lateral displacement, reduce structural swaying and torsion, and lower wear on connectors. Furthermore, the uniform cable tension and stable parallelism reduce long-term cumulative deformation, preventing photovoltaic module misalignment from affecting efficiency. The balanced stress at the nodes also reduces fatigue damage, extends system life, and lowers maintenance costs.

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is a schematic diagram of the end column structure in Embodiment 1 of this utility model;

[0023] Figure 4 This is a schematic diagram of the end rotating beam assembly in Embodiment 1 of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure at the central column of Embodiment 1 of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the central rotating beam assembly in Embodiment 1 of this utility model;

[0026] Figure 7 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model;

[0027] Figure 8 for Figure 7 Enlarged view at point B in the middle;

[0028] Figure 9 This is a schematic diagram of the end column structure in Embodiment 2 of this utility model;

[0029] Figure 10 This is a schematic diagram of the end rotating beam assembly in Embodiment 2 of this utility model;

[0030] Figure 11 This is a schematic diagram of the structure at the central column of Embodiment 2 of this utility model;

[0031] Figure 12 This is a schematic diagram of the structure of the central rotating beam assembly in Embodiment 2 of this utility model.

[0032] In the diagram: 1-Load-bearing cable; 2-Stabilizing cable; 3-End column; 4-Middle column; 5-End rotating beam assembly; 51-End load-bearing cable fixing beam; 52-End stabilizing cable fixing beam; 53-First connecting rod; 6-Middle rotating beam assembly; 61-Middle load-bearing cable fixing beam; 62-Middle stabilizing cable fixing beam; 63-Connecting beam; 64-Second connecting rod; 7-Stabilizing frame; 71-Installation component; 8-Rotating reducer; 9-Mounting base; 10-Cable stay assembly. Detailed Implementation

[0033] 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.

[0034] Example 1: As Figure 1-6As shown, a double-layer multi-cable flexible tracking support driven by a rotary reducer includes a cable assembly. The cable assembly includes two parallel load-bearing cables 1 and a stabilizing cable 2 located below the load-bearing cables 1. Two end columns 3 are provided at both ends of the cable assembly along its extension direction. At least one middle column 4 is provided in the extension direction of the cable assembly and between the two end columns 3. An end rotating beam assembly 5 and a middle rotating beam assembly 6 are respectively provided above the end columns 3 and the middle column 4 to support and maintain the two load-bearing cables 1 and the stabilizing cable 2 in parallel space. At least one stabilizing frame 7 is provided at intervals along the length of the cable assembly to reinforce the parallel state of the two load-bearing cables 1 and the stabilizing cable 2. A rotary reducer 8 is provided between the end columns 3 and the end rotating beam assembly 5, and between the middle column 4 and the middle rotating beam assembly 6 to drive the rotation of the corresponding rotating beam assembly.

[0035] This design, through the support of the end rotating beam assembly 5 and the middle rotating beam assembly 6, maintains the spatial parallelism of the load-bearing cable 1 and the stabilizing cable 2. Combined with the reinforcement of the stabilizing frame 7, it effectively prevents the stabilizing cable 2 from exhibiting a low-middle, high-end shape, ensuring uniform tension distribution among the cables. This effectively resists upwind conditions and reduces structural buckling and tension imbalance. Simultaneously, the parallel state of the cables and the reinforcing effect of the stabilizing frame 7 guarantee the stability of the tensioned structure, enhance resistance to lateral displacement, reduce structural swaying and torsion, and lower wear on the mounting components 71. Furthermore, the uniform cable tension and stable parallel state reduce long-term cumulative deformation, preventing photovoltaic module misalignment from affecting efficiency. The balanced stress at the nodes also reduces fatigue damage, extends system life, and lowers maintenance costs.

[0036] In this embodiment, the end column 3 and the middle column 4 can be foundation structures such as concrete pile foundations and steel structure columns.

[0037] The rotary reducer 8 is fixedly installed on the top of the end column 3 or the middle column 4 via the mounting base 9, and the power output end of the rotary reducer 8 is connected to the corresponding end rotating beam assembly 5 or the middle rotating beam assembly 6.

[0038] The end rotating beam assembly 5 includes an end load-bearing cable fixing beam 51 fixedly connected to the power output end of the rotary reducer 8, and the end load-bearing cable fixing beam 51 is fixedly connected to two load-bearing cables 1.

[0039] A first connecting rod 53 is fixedly connected to one side wall of the end load-bearing cable fixing beam 51 near its center. The other end of the first connecting rod 53 is fixedly connected to an end stabilizing cable fixing beam 52. The end stabilizing cable fixing beam 52 is fixedly connected to the corresponding stabilizing cable 2.

[0040] In this design, the end load-bearing cable fixing beam 51 is fixedly connected to the power output end of the rotary reducer 8 and the two load-bearing cables 1. It can drive the load-bearing cables 1 to rotate stably with the driving force of the rotary reducer 8. At the same time, it is connected to the end stabilizing cable fixing beam 52 through the first connecting rod 53 near the center of its side wall, thereby fixing the stabilizing cable 2. This structure can ensure that the load-bearing cable 1 and the stabilizing cable 2 always remain in a spatially parallel state. Moreover, the rigid connection can effectively disperse the vertical load on the load-bearing cable 1 and the tension of the stabilizing cable 2, avoiding beam deformation caused by stress concentration. In addition, the stable connection of each component forms a reliable support frame, which significantly enhances the torsional stiffness of the end and can effectively resist the cable misalignment and tension imbalance caused by external forces such as wind load, thereby improving the stability and reliability of the entire support system.

[0041] In this embodiment, the end load-bearing cable fixing beam 51 has symmetrical end load-bearing cable holes on one side wall near both ends, and the end of the load-bearing cable 1 passes through the end load-bearing cable hole and is fixedly connected to the anchoring clamp.

[0042] The end stabilizing cable fixing beam 52 has an end stabilizing cable hole, and the end of the stabilizing cable 2 passes through the end stabilizing cable hole and is fixedly connected to an anchoring clamp.

[0043] In addition to this embodiment, the end load-bearing cable fixing beam 51 and the load-bearing cable 1, as well as the end stabilizing cable fixing beam 52 and the stabilizing cable 2, can also be connected together by U-shaped buckles or the like.

[0044] The central rotating beam assembly 6 includes two parallel, spaced-apart central load-bearing cable fixing beams 61. Connecting beams 63 are fixedly connected to the two central load-bearing cable fixing beams 61 near their ends, so that the two central load-bearing cable fixing beams 61 and the two connecting beams 63 together form a rectangular frame. The rotary reducer 8, which is fixedly installed on the top of the central column 4, is located inside the rectangular frame. The power output end of the rotary reducer 8 is fixedly connected to one of the central load-bearing cable fixing beams 61, and the central load-bearing cable fixing beam 61 is connected to the two load-bearing cables 1.

[0045] On the side walls of the two central load-bearing cable fixing beams 61 that are opposite to each other, near their centers, a second connecting rod 64 is fixedly connected. The other end of the second connecting rod 64 is fixedly connected to a central stabilizing cable fixing beam 62, and the central stabilizing cable fixing beam 62 is fixedly connected to the corresponding stabilizing cable 2.

[0046] This design, with two central load-bearing cable fixing beams 61 and two connecting beams 63 forming a rectangular frame, not only provides a stable foundation for the structure but also encloses the rotary reducer 8, allowing its power output end to stably drive the central load-bearing cable fixing beams 61, thereby driving the load-bearing cable 1 to operate reliably. At the same time, the two central load-bearing cable fixing beams 61 are connected to the central stabilizing cable fixing beam 62 via the second connecting rod 64 to fix the stabilizing cable. This structure ensures that the load-bearing cable 1 and the stabilizing cable 2 always remain parallel. In addition, the overall structure of the rectangular frame enhances the deformation resistance of the central part, distributes the load on each cable, effectively resists swaying and torsion under external forces, reduces wear on connecting parts, and improves the stability and durability of the entire support system.

[0047] In this embodiment, a central load-bearing cable 1 hole is symmetrically opened on one side wall of the central load-bearing cable fixing beam 61 near both ends, and the load-bearing cable 1 passes through the central load-bearing cable 1 hole.

[0048] In this embodiment, the end stabilizing cable fixing beam 52 is provided with end stabilizing cable holes, and the end of the stabilizing cable 2 passes through the end stabilizing cable holes and is fixedly connected to an anchoring clamp.

[0049] In addition to this embodiment, the end stabilizing cable fixing beam 52 and the stabilizing cable 2 are connected together by U-shaped buckles or the like.

[0050] The stabilizing frame 7 comprises a rigid frame consisting of three rods connected end to end. Each corner of the rigid frame is provided with an installation component 71, which is connected to either the load-bearing cable 1 or the stabilizing cable 2, and all corners are located in the same plane.

[0051] This design, consisting of a rigid frame composed of three end-to-end connected members, connects the load-bearing cable 1 or the stabilizing cable 2 with the corner mounting pieces 71. All corners are located on the same plane, providing stable constraints on the load-bearing cable 1 and the stabilizing cable 2 from multiple points, further reinforcing their parallel relationship. This rigid frame structure effectively disperses the local stress generated by each cable under load, preventing damage to the cable or mounting piece 71 due to excessive stress at a single point. Simultaneously, the in-plane rigid connection enhances the overall resistance to lateral displacement of the cable assembly, reducing swaying under external forces such as wind loads. Combined with the end rotating beam assembly 5 and the middle rotating beam assembly 6, it improves the structural stability and reliability of the entire support system, reducing long-term maintenance costs.

[0052] Two cable-stayed assemblies 10 arranged in a figure-eight pattern are respectively provided on the opposite sides of the two end columns 3.

[0053] The cable-stayed assembly 10 includes a tension transmission component. The first end of the tension transmission component is connected to a corresponding mounting base 9, and the second end is connected to a fixing base, which is fixed to the foundation or pile foundation.

[0054] In this design, the two end columns 3 are arranged in a figure-eight pattern with the cable-stayed assembly 10 facing away from each other. The mounting base 9 is connected to the fixed base on the foundation or pile foundation through the tension transmission component. The figure-eight structure can provide stable tension support to the end columns 3 from different directions, effectively enhancing the overturning resistance of the end columns 3. This connection method can distribute the load on the end columns 3 and the structure above to the foundation or pile foundation through the tension transmission component, avoiding structural deformation or damage caused by excessive local stress. At the same time, the cable-stayed assembly 10 works together with the end columns 3, mounting base 9 and other components to further improve the overall stability of the entire support system when subjected to wind loads, self-weight and other loads, reduce structural swaying and extend the service life of the system.

[0055] In this embodiment, the tension transmission component is a flexible cable-stayed bridge, with its first end connected to the corresponding mounting base 9 via a U-shaped buckle and its second end connected to the fixed base via a U-shaped buckle.

[0056] In addition to the example described herein, the tension transmission component is a rigid rod, with its first end fixedly connected to the corresponding mounting base 9 by welding or flange, and its second end connected to the fixed base by a U-shaped buckle or spherical hinge, etc.

[0057] In this embodiment, the fixing seat is fixed on the foundation and is pre-embedded in the foundation to achieve a fixed connection between the fixing seat and the foundation.

[0058] In addition to this embodiment, the fixing base can be fixed to the upper surface of the foundation by fasteners such as bolts.

[0059] Example 2: Figure 7-12 As shown, the main difference between this embodiment and Embodiment 1 is that the cable assembly includes two parallel load-bearing cables 1 and two stabilizing cables 2 located below the load-bearing cables 1, and the load-bearing cables 1 and stabilizing cables 2 are parallel to each other in space. Accordingly, adaptive adjustments have been made to the end rotating beam assembly 5, the middle rotating beam assembly 6, and the stabilizing frame 7.

[0060] Two first connecting rods 53 are fixedly connected to one side wall of the end load-bearing cable fixing beam 51 near both ends. The other end of each first connecting rod 53 is fixedly connected to an end stabilizing cable fixing beam 52, and the end stabilizing cable fixing beam 52 is connected to the corresponding stabilizing cable 2.

[0061] Two second connecting rods 64 are fixedly connected to the two central load-bearing cable fixing beams 61 on opposite sides of each other, near both ends. The other end of each second connecting rod 64 is fixedly connected to a central stabilizing cable fixing beam 62, which is connected to the corresponding stabilizing cable 2.

[0062] The stabilizing frame 7 comprises a rigid frame consisting of five rods. Each corner of the rigid frame is provided with an installation component 71, which is connected to either the load-bearing cable 1 or the stabilizing cable 2. All corners are located in the same plane.

[0063] The parts involved in this utility model embodiment (such as rotary reducer 8, mounting base 9, various fixed beams, connecting rods, cable bodies, anchoring clamps, U-shaped buckles, rods, mounting parts 71, fixed bases, etc.) are all existing technical components or standard parts well known to those skilled in the art. Their specific structures and working principles can be obtained through technical manuals or conventional design methods, and can be purchased from the market.

[0064] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-layer multi-cable flexible tracking support driven by a rotary reducer, comprising a cable assembly, the cable assembly comprising two parallel load-bearing cables (1) and a stabilizing cable (2) located below the load-bearing cables (1), two end columns (3) are provided at both ends of the cable assembly along its extension direction, at least one middle column (4) is provided in the extension direction of the cable assembly and between the two end columns (3), end rotating beam assemblies (5) and middle rotating beam assemblies (6) are respectively arranged above the end columns (3) and the middle column (4) to support and maintain the two load-bearing cables (1) and the stabilizing cable (2) in parallel space, and multiple stabilizing frames (7) are provided at intervals along the length direction of the cable assembly to reinforce the parallel state of the two load-bearing cables (1) and the stabilizing cable (2), and a rotary reducer (8) is provided between the end columns (3) and the end rotating beam assembly (5), and between the middle column (4) and the middle rotating beam assembly (6) to drive the corresponding rotating beam assembly to rotate.

2. The double-layer multi-cable flexible tracking bracket driven by a rotary reducer according to claim 1, characterized in that: The rotary reducer (8) is fixedly installed on the top of the end column (3) or the middle column (4) by the mounting base (9), and the power output end of the rotary reducer (8) is connected to the corresponding end rotating beam assembly (5) or the middle rotating beam assembly (6).

3. The double-layer multi-cable flexible tracking bracket driven by a rotary reducer according to claim 2, characterized in that: The end rotating beam assembly includes an end load-bearing cable fixing beam (51) fixedly connected to the power output end of the rotary reducer (8), which is fixedly connected to two load-bearing cables (1).

4. The double-layer multi-cable flexible tracking bracket driven by a rotary reducer according to claim 3, characterized in that: At least one end stabilizing cable fixing beam (52) is provided on the side wall of the end load-bearing cable fixing beam (51), and the end stabilizing cable fixing beam (52) is fixedly connected to the stabilizing cable (2).

5. The double-layer multi-cable flexible tracking bracket driven by a rotary reducer according to claim 1, characterized in that: Two parallel, spaced-apart central load-bearing cable fixing beams (61) are fixedly connected to each other near their ends by connecting beams (63), so that the two central load-bearing cable fixing beams (61) and the two connecting beams (63) together form a rectangular frame; and a rotary reducer (8) fixedly installed on the top of the central column (4) is located inside the rectangular frame. The power output end of the rotary reducer (8) is fixedly connected to one of the central load-bearing cable fixing beams (61), and the central load-bearing cable fixing beam (61) is connected to the two load-bearing cables (1).

6. A double-layer multi-cable flexible tracking bracket driven by a rotary reducer according to claim 5, characterized in that: At least one central stabilizing cable fixing beam (62) is provided on the opposite side walls of the central load-bearing cable fixing beam (61), and the central stabilizing cable fixing beam (62) is fixedly connected to the stabilizing cable (2).

7. A double-layer multi-cable flexible tracking bracket driven by a rotary reducer according to claim 1, characterized in that: The stabilizer (7) includes a rigid frame consisting of at least three rods, with an installation (71) at each corner of the rigid frame. The installation (71) is connected to either the load-bearing cable (1) or the stabilizer cable (2), and all corners are located in the same plane.

8. A double-layer multi-cable flexible tracking bracket driven by a rotary reducer according to claim 2, characterized in that: It also includes a cable-stayed assembly (10), which is set on the opposite side of the two end columns (3), with the first end connected to the corresponding mounting base (9) and the second end connected to the foundation or pile foundation.

Images