Flexible support end structure and flexible tracking support

Abstract

The invention discloses a flexible support end structure which comprises an end stand column, the top of the end stand column is connected with a driving piece and an end cross beam, and the end cross beam is rotationally connected with the end stand column and driven by the driving piece to swing in a reciprocating mode; the driving piece is fixedly connected to the end stand column through a supporting platform, and the power output end of the driving piece is connected with the end cross beam through a multi-shaft connecting rod; and the cable-stayed assembly comprises a first steel strand and an inclined pressing rod, the first steel strand is wound around the inclined pressing rod and connected with the two ends of the end cross beam, the bottom of the inclined pressing rod is rotationally connected with the end stand column, and the top of the inclined pressing rod is fixedly connected with a ground foundation through a cable-stayed part. The acting force on the speed reducer can be greatly reduced, and the safety of the whole structure is improved.

Description

Technical Field

[0001] This invention belongs to the field of flexible photovoltaic support technology, specifically relating to a flexible support end structure and a flexible tracking support. Background Technology

[0002] In order to enable photovoltaic modules to adapt to different solar altitude angles, the traditional fixed flexible photovoltaic support system is gradually being replaced by flexible tracking photovoltaic support system. The flexible tracking photovoltaic support system can adapt to the sun's illumination at different altitude angles, thereby maximizing power generation efficiency.

[0003] Currently, flexible tracking photovoltaic support solutions still use the traditional flexible support end mechanism, where the reducer is directly installed on the terminal crossbeam and fixed together with the crossbeam, and the top of the inclined pull assembly is fixed on the end column. For example, the invention patent with patent number 2025105755491, "A Support Structure and Flexible Tracking Photovoltaic System", simplifies the structure of the end support and enables the quick installation of the end support. The photovoltaic panel assembly can be driven to rotate through the end rotating assembly, but the reducer is still directly installed on the crossbeam.

[0004] For traditional flexible support systems, the top beam is fixedly connected to the top of the end column. After the photovoltaic modules are installed on the load-bearing cable, the beam mainly bears the prestress applied by the load-bearing cable and the weight of the photovoltaic modules. However, for flexible tracking support systems, the reducer directly mounted on the beam needs to overcome part of the prestress of the load-bearing cable when driving the beam to rotate, thus requiring a larger output torque. Under various combined working conditions, the end beam will generate great axial pressure and shear force on the reducer. The inclined tie rod can only reduce the downward pressure on the end column. Long-term load will cause great wear on the reducer, reduce its service life, and pose a great safety hazard. Summary of the Invention

[0005] The purpose of this invention is to provide a flexible support end structure and a flexible tracking support, which can greatly reduce the force on the reducer and improve the safety of the overall structure.

[0006] To achieve the above objectives, the present invention provides a flexible support end structure, comprising: The end column is connected to a drive unit and an end beam at the top. The end beam is rotatably connected to the end column and is driven to swing back and forth by the drive unit. The drive unit is fixedly connected to the end column via a support platform, and the power output end of the drive unit is connected to the end crossbeam via a multi-axis connecting rod. The inclined cable assembly includes a first steel strand and an inclined pressure bar. The first steel strand is wound around the inclined pressure bar and connected to both ends of the end crossbeam. The bottom of the inclined pressure bar is rotatably connected to the end column. The top of the inclined pressure bar is connected and fixed to the ground foundation through an inclined tie.

[0007] As a further embodiment of the present invention: the top of the end column is symmetrically connected with a crossbeam mounting base, and the end crossbeam is rotatably mounted on the crossbeam mounting base by a pin.

[0008] As a further aspect of the present invention: the multi-axis connecting rod includes a support plate, one end face of which is connected to the power output end of the driving component, and the other end face is connected to at least two support shafts for connecting the end crossbeams, the support shafts being symmetrically distributed around the pin shaft.

[0009] As a further aspect of the present invention, the support platform is connected and fixed to the end column by a number of insert rods.

[0010] As a further aspect of the present invention: the driving component includes a speed reducer and a drive motor for driving the speed reducer.

[0011] As a further embodiment of the present invention: a hinge seat is fixed at the bottom of the end column, the bottom of the inclined pressure rod is installed on the hinge seat, a connecting seat is fixedly connected to the top of the inclined pressure rod, a first U-bolt is connected through the connecting seat, an arc plate is connected to the open end of the first U-bolt, and wire holes are symmetrically provided on the arc plate. The two ends of the first steel strand pass through the wire holes and are flexibly connected to the two ends of the end beam.

[0012] As a further embodiment of the present invention: a second ear plate is provided on the side of the end beam facing the first steel strand at both ends, a second U-bolt is connected to the second ear plate, the open end of the second U-bolt is connected to the first fixing plate, and the end of the first steel strand is anchored to the first fixing plate.

[0013] As a further embodiment of the present invention: the inclined tie is a second steel strand or threaded rod, and at least one set is provided. The two ends of the inclined tie are fixedly connected to a second fixing plate, and a third U-bolt is connected to the second fixing plate. The connecting seat is provided with a third ear plate for connecting the third U-bolt.

[0014] To achieve the above objectives, the present invention also provides a flexible tracking bracket for installing photovoltaic modules, including the aforementioned flexible bracket end structures, wherein the flexible bracket end structures are arranged in pairs and connected by load-bearing cables anchored to the end crossbeams.

[0015] As a further aspect of the present invention, it also includes a central column, which is located in the middle of the end structure of each pair of flexible supports. The top of the central column is equipped with a central crossbeam in the same manner as the end columns, and the load-bearing cable passes through the central crossbeam.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: Compared with the existing installation structure in which the drive component is directly connected to the crossbeam, the drive component in this invention is indirectly connected to the end crossbeam through multi-axis linkages, and is supported by a support platform supported by multiple insert rods at the bottom. The multi-axis linkages distribute the force on the output end of the drive component into at least two segments, reducing the load transmitted to the drive component. The multiple insert rods transfer part of the load to the end column, further dispersing the force on the support platform and the drive component, thereby effectively dispersing the downward pressure on the reducer.

[0017] In existing technologies, cable tie components are mostly designed with the top of the steel strand connected to the column, which cannot reduce the downward pressure on the crossbeam. Compared with existing cable tie components, the first steel strand in this invention provides a tension force opposite to the tension force of the load-bearing cable and can move synchronously with the crossbeam as it rotates. Together with the diagonal pressure bar and the cable tie component, it forms a cable tie structure system with reasonable force transmission. Through the cable tie component composed of the first steel strand, the diagonal pressure bar and the cable tie component, the force on the end crossbeam is effectively distributed and transmitted, further reducing the load on the reducer.

[0018] This invention indirectly connects the drive component to the end beam via a multi-axis linkage and supports it from the bottom via a support platform, effectively dispersing the load on the reducer. The inclined tension assembly, consisting of the first steel strand, the inclined pressure bar, and the inclined tension member, effectively disperses and transmits the force on the beam, further reducing the load on the reducer and improving its service life.

[0019] Furthermore, due to the drive component mounting structure of the present invention, the prestress of the load-bearing cable that needs to be overcome when the drive end beam rotates is smaller, and a reducer with a smaller output torque can be selected, thereby reducing costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the end structure of the flexible support of the present invention.

[0021] Figure 2 This is a schematic diagram of the connection structure between the support platform and the crossbeam mounting base in the end structure of the flexible support of the present invention.

[0022] Figure 3 This is a schematic diagram of the multi-axis connecting rod structure in the end structure of the flexible support of the present invention.

[0023] Figure 4 This is a schematic diagram of the flexible tracking bracket of the present invention.

[0024] Figure 5 A schematic diagram of a conventional end column and diagonal bracing system, drawn using the structural design software SAP2000 v26.

[0025] Figure 6 , Figure 7 for Figure 5Analysis diagram of the axial pressure on the reducer at both ends of the middle end crossbeam.

[0026] Figure 8 A schematic diagram of the end structure of the flexible support of the present invention, drawn using the structural design software SAP2000 v26.

[0027] Figure 9 , Figure 10 for Figure 8 Analysis diagram of the axial pressure on the drive reducer at both ends of the middle end crossbeam.

[0028] In the diagram: 1. End column, 2. First ear plate, 3. Insert rod, 4. Crossbeam mounting seat, 5. Pin, 6. End crossbeam, 7. Second ear plate, 8. Second U-bolt, 9. First fixing plate, 10. First steel strand, 11. Multi-axis connecting rod, 12. Driving component, 13. Support platform, 14. Arc plate, 15. Wire hole, 16. First U-bolt, 17. Connecting seat, 18. Third ear plate, 19. Second fixing plate, 20. Third U-bolt, 21. Diagonal tie, 22. Diagonal pressure bar, 23. Hinge seat, 24. Middle column, 25. Load-bearing cable, 26. Photovoltaic module, 27. Middle crossbeam; 11.1 Support plate, 11.2 Support shaft. Detailed Implementation

[0029] The invention will now be further described with reference to the accompanying drawings.

[0030] like Figure 1 As shown, a flexible support end structure includes: The end column 1 is connected to the top of the drive component 12 and the end beam 6. The end beam 6 is rotatably connected to the end column 1 and is driven by the drive component 12 to swing back and forth. This allows for the adjustment of the angle of the photovoltaic module 26 connected and supported on the end beam 6 to adapt to different solar altitudes and maximize power generation efficiency. The drive component 12 is fixedly connected to the end column 1 via the support platform 13. The power output end of the drive component 12 is connected to the end crossbeam 6 via the multi-axis connecting rod 11. The drive component 12 is indirectly connected to the end crossbeam 6 via the multi-axis connecting rod 11 and is supported from the bottom via the support platform 13, effectively dispersing the load on the drive component 12. The cable-stayed assembly includes a first steel strand 10 and a diagonal bracing member 22. The first steel strand 10 is wound around the diagonal bracing member 22 and connected to both ends of the end beam 6. The bottom of the diagonal bracing member 22 is rotatably connected to the end column 1, and the top of the diagonal bracing member 22 is fixed to the ground foundation via a cable tie member 21. The cable-stayed assembly, consisting of the first steel strand 10, the diagonal bracing member 22, and the cable tie member 21, can effectively distribute and transfer the force on the end beam 6, further reducing the load on the driving member 12, thereby greatly reducing the force on the driving member 12 and improving the safety of the overall structure.

[0031] To achieve the swinging effect of the end beam 6 on the end column 1, further, such as Figure 2 As shown, the top of the end column 1 is symmetrically connected to a crossbeam mounting seat 4, and the end crossbeam 6 is rotatably mounted on the crossbeam mounting seat 4 via a pin 5. Preferably, the top of the end column 1 has an opening, the bottom of the crossbeam mounting seat 4 is fixedly connected to the opening, and the end crossbeam 6 is located between the two crossbeam mounting seats 4, and is rotatably mounted using a pin 5. The crossbeam mounting seat 4 can be fixed by welding to the end column 1 or integrally formed, or it can be fixedly connected to the end column 1 by a plug rod 3.

[0032] To reduce the load on the drive component 12, the power output end of the drive component 12 is connected to the end crossbeam 6 via a multi-axis connecting rod 11. Furthermore, as... Figure 3 As shown, the multi-axis linkage 11 includes a support plate 11.1. One end face of the support plate 11.1 is connected to the power output end of the drive member 12, and the other end face is connected to at least two support shafts 11.2 for connecting the end crossbeam 6. The multi-axis linkage 11 disperses the force borne by the output end of the drive member 12 into at least two segments, reducing the load transmitted to the drive member 12. The support shafts 11.2 are symmetrically distributed around the pin 5, so that the support shafts 11.2 avoid the pin 5 and avoid interference.

[0033] Furthermore, when the overall flexible system is subjected to downward wind load, most of the load will be preferentially applied to the pin 5, and part of the load will be transferred to the drive component 12 through the support shaft 11.2. Compared with the existing technology where the reducer is directly installed on the crossbeam, this effectively reduces the stress on the drive component 12 under wind load.

[0034] Furthermore, such as Figure 1 and Figure 2 As shown, the support platform 13 is connected and fixed to the end column 1 by several insert rods 3. The support platform 13 is separate from the end column 1, and the support platform 13 is fixedly connected to the end column 1 by at least two insert rods 3. In order to reduce the load on the end column 1, the support platform 13 is designed as a U-shaped steel structure with the opening facing downward. Preferably, the crossbeam mounting base 4 and the support platform 13 are both installed and fixed to the end column 1 by insert rods 3.

[0035] Specifically, a first ear plate 2 is provided on the top of the end column 1, and four insertion rods 3 are provided. Two rods are used to fix the crossbeam mounting base 4, and the other two rods pass through the support platform 13 and are connected and fixed to the first ear plate 2. Through the multiple insertion rods 3, part of the load is transferred to the end column 1, further dispersing the force on the support platform 13 and the drive component 12.

[0036] To achieve drive control of the end beam 6, the drive component 12 further includes a reducer and a drive motor for driving the reducer. Preferably, it is an integrated worm gear reducer.

[0037] To facilitate the installation of the inclined pressure bar 22 and the first steel strand 10, a hinge seat 23 is fixed to the bottom of the end column 1. The bottom of the inclined pressure bar 22 is installed on the hinge seat 23, and a connecting seat 17 is fixedly connected to the top of the inclined pressure bar 22. A first U-bolt 16 is connected through the connecting seat 17. An arc plate 14 is connected to the open end of the first U-bolt 16. Wire holes 15 are symmetrically provided on the arc plate 14. The two ends of the first steel strand 10 pass through the wire holes 15 and are flexibly connected to the two ends of the end beam 6.

[0038] Furthermore, the end beam 6 has a second ear plate 7 on the side facing the first steel strand 10 at both ends. The second ear plate 7 is connected to a second U-bolt 8. The open end of the second U-bolt 8 is connected to a first fixing plate 9. The end of the first steel strand 10 is anchored to the first fixing plate 9.

[0039] Furthermore, the diagonal bracing 21 is a second steel strand or threaded rod, and at least one set is provided. Second fixing plates 19 are fixedly connected to both ends of the diagonal bracing 21. Third U-bolts 20 are connected to the second fixing plates 19, and the connecting seat 17 is provided with a third ear plate 18 for connecting the third U-bolts 20. For example... Figure 1 The inclined tie rod 21 shown is in two sets. When the inclined tie rod 21 is set as one set, a thicker steel strand or threaded rod is selected. When the inclined tie rod 21 is set as a threaded rod, a fine-rolled threaded steel is preferred. The third U-bolt 20 set at the lower end is locked to the ground foundation by a matching nut to achieve connection and fixation. The inclined tie rod 21 realizes the inclined tie function of the end column 1, and transfers part of the load on the end beam 6 to the ground foundation.

[0040] like Figure 4 As shown, a flexible tracking bracket includes the aforementioned flexible bracket end structures. These end structures are arranged in pairs and connected by load-bearing cables 25 anchored to the end crossbeam 6 for mounting photovoltaic modules 26. A driving component 12 drives the rotation of the end crossbeam 6, causing the photovoltaic modules 26 mounted on the top of the load-bearing cables 25 to track the sun, thereby improving power generation efficiency.

[0041] Furthermore, it also includes a middle column 24, which is located in the middle of the end structure of each pair of flexible supports. The top of the middle column 24 is equipped with a middle crossbeam 27 in the same manner as the end column 1, and the load-bearing cable 25 passes through the middle crossbeam 27.

[0042] In actual use, the tension generated by the first steel strand 10 and the diagonal bracing 21 is transmitted to the anchorage point of the end beam 6 and the load-bearing cable 25. According to the characteristics of force flow - force flow preferentially takes the shortest path, the tension will be transmitted to the first steel strand 10, then concentrated on the connecting seat 17 on the diagonal pressure bar 22, and finally transmitted to the ground foundation through the diagonal pressure bar 22 and the diagonal bracing 21, thereby greatly reducing the force on the driving component 12.

[0043] like Figure 5 The image shown is a schematic diagram of a conventional end column and diagonal bracing system drawn using the structural design software SAP2000 v26. Figure 6 and Figure 7 They are respectively Figure 5 Analysis diagram of the axial pressure on the reducer at both ends of the middle end crossbeam, from Figure 6 and Figure 7 The results show that the shaft pressure of the conventionally tested reducer is 101 + 102 = 203 kN.

[0044] like Figure 8 The image shown is a schematic diagram of the end structure of the flexible support of the present invention, drawn using the structural design software SAP2000 v26. Figure 9 and Figure 10 They are respectively Figure 8 The axial pressure analysis diagram of the drive component 12 reducer at both ends of the middle end crossbeam 6 is shown in the figure. Figure 9 and Figure 10 It can be seen that the axial pressure on the reducer of the drive component 12 of the present invention is 1.2 + 5.2 = 6.4 KN.

[0045] After testing and verification, the system structure of the present invention can greatly reduce the force of the reducer of drive component 12, thereby extending the service life of the reducer of drive component 12.

Claims

1. A flexible stent end structure, characterized by, The utility model relates to a flexible support end structure, which comprises an end column (1) having a driving element (12) and an end beam (6) connected to the top of the end column (1), the end beam (6) being rotatably connected to the end column (1) and being driven to reciprocating swing by the driving element (12); the driving element (12) is fixedly connected to the end column (1) through a support platform (13), and the power output end of the driving element (12) is connected to the end beam (6) through a multi-shaft connecting rod (11); the cable-stayed assembly comprises a first steel strand (10) and a diagonal strut (22), the first steel strand (10) being connected to both ends of the end beam (6) by being wound around the diagonal strut (22), the bottom of the diagonal strut (22) being rotatably connected to the end column (1), and the top of the diagonal strut (22) being fixedly connected to the ground foundation through a cable-stayed element (21). The end column (1) is symmetrically connected to the top end of a beam mounting seat (4), and the end beam (6) is rotatably mounted on the beam mounting seat (4) through a pin shaft (5). The multi-shaft connecting rod (11) comprises a support plate (11.1), one end surface of the support plate (11.1) being connected to the power output end of the driving element (12), and the other end surface being connected to at least two support shafts (11.2) for connecting the end beam (6), the support shafts (11.2) being symmetrically distributed around the pin shaft (5). The support platform (13) is fixedly connected to the end column (1) through a plurality of inserting rods (3).

2. The flexible stent end structure of claim 1, wherein The driving element (12) comprises a speed reducer and a driving motor for driving the speed reducer.

3. The flexible stent end structure of claim 2, wherein, The bottom of the end column (1) is fixedly connected to a hinged seat (23), the bottom of the diagonal strut (22) is mounted on the hinged seat (23), the top of the diagonal strut (22) is fixedly connected to a connecting seat (17), the first U-shaped bolt (16) is connected to the connecting seat (17), the open end of the first U-shaped bolt (16) is connected to an arc-shaped plate (14), the arc-shaped plate (14) is symmetrically provided with wire holes (15), and the two ends of the first steel strand (10) are respectively connected to the two ends of the end beam (6) through the wire holes (15).

4. The flexible stent end structure of claim 1, wherein The two ends of the end beam (6) are provided with second ear plates (7) on the side facing the first steel strand (10), the second ear plates (7) are connected to second U-shaped bolts (8), the open ends of the second U-shaped bolts (8) are connected to first fixed plates (9), and the ends of the first steel strand (10) are anchored to the first fixed plates (9).

5. The flexible stent end structure of claim 1, wherein The cable-stayed element (21) is a second steel strand or a threaded rod, and at least one set of the cable-stayed element (21) is provided, the two ends of the cable-stayed element (21) are fixedly connected to second fixed plates (19), the second fixed plates (19) are connected to third U-shaped bolts (20), and the connecting seat (17) is provided with third ear plates (18) for connecting the third U-shaped bolts (20).

6. The flexible stent end structure of claim 1, wherein The utility model further comprises intermediate columns (24), the intermediate columns (24) being arranged between each pair of flexible support end structures, the top of the intermediate column (24) being provided with an intermediate beam (27) in the same manner as the end column (1), and the load-bearing cable (25) penetrating through the intermediate beam (27).

7. The flexible stent end structure of claim 6, wherein The utility model further comprises intermediate columns (24), the intermediate columns (24) being arranged between each pair of flexible support end structures, the top of the intermediate column (24) being provided with an intermediate beam (27) in the same manner as the end column (1), and the load-bearing cable (25) penetrating through the intermediate beam (27).

8. The flexible stent end structure of claim 6, wherein ​ 9. A flexible tracking arm, characterized in that ​ 10. The flexible tracking support of claim 9, wherein, ​

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