Multi-row linkage solar photovoltaic support with self-locking protection

Abstract

The utility model discloses a multi-row linkage solar photovoltaic support with self-locking protection, which comprises a driving row and at least one driven row in power connection with the driving row through a transmission part, a driving part is arranged on the driving row, and a brake is arranged on the driven row; a driving row main beam is arranged in the driving row, and a driven row main beam is arranged in the driven row; the transmission part comprises transmission chains which are in power connection with the driving row main beam and the driven row main beam, and the transmission chains on the driving row main beam and the driven row main beam are connected through transmission ropes; the flexible transmission system is formed by the chains and the steel cables, so that when different photovoltaic rows generate asynchronous vibration, the asynchronous movement can be buffered through the flexible transmission system, the transmission system is prevented from being damaged, and meanwhile, the wind-induced vibration generated by the driven row can be effectively reduced by arranging a plurality of brakes on the driven row.

Description

Technical Field

[0001] The utility model relates to the technical field of solar photovoltaic brackets, in particular to a multi-row linkage solar photovoltaic bracket with self-locking protection. Background Art

[0002] Solar photovoltaic power generation uses solar photovoltaic modules as electrical conversion devices to convert solar energy into electrical energy. Solar photovoltaic brackets serve as supports for photovoltaic modules. In order to enable photovoltaic modules to receive more solar radiation and increase power generation, tracking systems are added to solar photovoltaic power generation systems. Tracking brackets are becoming a new tool for reducing costs and increasing efficiency of photovoltaic power generation systems.

[0003] Photovoltaic power generation is mostly carried out in sparsely populated, high-altitude mountainous areas, hilly areas, and desert regions. "In extreme weather conditions, moving 'windstorms' pose the greatest challenge to photovoltaic power stations. Wind-induced resonance often causes photovoltaic racks to be blown over. Since most photovoltaic racks are arranged in a multi-row, single-drive configuration, wind-induced vibrations are transmitted between different photovoltaic rows. Relying solely on the braking of the drive row cannot effectively resist wind-induced vibrations, and can also cause excessive loads on the transmission system and reducer brakes. In severe cases, this can lead to transmission system fracture and reducer brake failure. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-row linked solar photovoltaic bracket with self-locking protection to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A multi-row linked solar photovoltaic support with self-locking protection, comprising a driving row and at least one driven row connected to the driving row through a transmission part, wherein the driving row is provided with a driving part and the driven row is provided with a brake;

[0007] The driving row is provided with a driving row main beam, and the driven row is provided with a driven row main beam;

[0008] The transmission part includes a transmission chain that is dynamically connected to the driving row main beam and the driven row main beam, and the transmission chains on the driving row main beam and the driven row main beam are connected by a transmission rope;

[0009] One end of the brake is connected to the main beam of the driving row, and the other end is connected to the support portion of the driven row.

[0010] As a further solution of the present invention: a driving part is provided in the driving row, and the driving part is a driving motor, and the driving part is dynamically connected to the main beam of the driving row through a reducer.

[0011] As a further solution of the present invention: a driving wheel is sleeved on the main beam of the driving row, and an open structure transmission chain is wrapped around the driving wheel; a driven wheel is sleeved on the main beam of the driven row, and an open structure transmission chain is wrapped around the driven wheel; the transmission chains on the driving wheel and the driven wheel are connected to form a ring-shaped transmission part through two sections of transmission ropes.

[0012] As a further solution of the present invention: the transmission rope and the transmission chain are connected via a connecting assembly, and an adjusting bolt for adjusting the length of the connecting assembly is provided in the connecting assembly.

[0013] As a further solution of the present invention: a support column for supporting the driven row is provided at the lower end of the driven row main beam, and a plurality of the support columns are provided.

[0014] As a further solution of the present invention: the brake is connected between the supporting column and the driven row main beam, and the axis of the brake is arranged obliquely to the axis of the supporting column.

[0015] As a further solution of the present invention: the brake includes a brake cylinder body, one end of the brake cylinder body is provided with a brake rod, the brake cylinder body is movably connected to the driven row main beam, and the brake rod is movably connected to the support column.

[0016] As a further solution of the present invention: a mounting seat is fixedly connected to the driven row main beam, the brake cylinder body is rotatably connected to the mounting seat through a first connecting shaft, a connecting seat is provided on the support column, and the brake rod is rotatably connected to the connecting seat through a second connecting shaft.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This application uses chains and steel cables to form a flexible transmission system. When different photovoltaic arrays generate asynchronous vibrations, the flexible transmission system can buffer the asynchronous motion to avoid damage to the transmission system. At the same time, by providing multiple brakes on the driven rows, the wind-induced vibrations generated by the driven rows can be effectively reduced.

[0019] 2. By providing multiple brakes on the driven row, the present invention reduces the wind-induced vibration transmitted from the driven row to the driving row, thereby reducing the braking load of the drive disc reducer. A smaller-sized reducer brake device can be used, solving the problem of wind-induced resonance of the multi-row linkage tracking bracket, increasing the bracket stability, and improving the stability of the flexible transmission system.

[0020] 3. The flexible transmission connection of this application can adapt to various spatial transmissions and solve the application of solar photovoltaic mobile tracking brackets in complex environments such as mountains and hills. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a multi-row linked solar photovoltaic support in this embodiment;

[0022] Figure 2 Schematic diagram of the transmission system structure of this embodiment;

[0023] Figure 3 This is a schematic diagram of the brake installation position of this embodiment;

[0024] Figure 4 This is a schematic diagram of the brake installation structure of this embodiment.

[0025] In the figure: 1-driving row, 11-driving row main beam, 2-transmission part, 21-driving wheel, 22-transmission chain, 23-transmission rope, 24-connecting assembly, 3-driven row, 4-driving part, 5-brake, 51-brake cylinder, 52-brake rod, 53-first connecting shaft, 54-second connecting shaft, 55-connecting seat, 6-support column, 7-driven row main beam, 8-mounting seat. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-4 In an embodiment of the utility model, a multi-row linkage solar photovoltaic bracket with self-locking protection includes a driving row 1 and at least one driven row 3 dynamically connected to the driving row 1 through a transmission part 2. The driving row 1 is provided with a driving part 4, and the driven row 3 is provided with a brake 5. A driving row main beam 11 is provided in the driving row 1, and a driven row main beam 7 is provided in the driven row 3. One end of the brake 5 is connected to the driving row main beam, and the other end is connected to the driven row support part.

[0028] A driving unit 4 is provided in the driving row 1, and the driving unit 4 is a driving motor. The driving unit 4 is connected to the driving row main beam 11 through a reducer. The driving motor drives the driving row main beam 11 to rotate, and then drives the photovoltaic panels on the driving row main beam 11 to rotate, so as to achieve the purpose of tracking sunlight.

[0029] The transmission part 2 includes a transmission chain 22 that is dynamically connected to the driving row main beam 11 and the driven row main beam 7. The transmission chains 22 on the driving row main beam 11 and the driven row main beam 7 are connected by a transmission rope 23. In this embodiment, a driving wheel 21 is sleeved on the driving row main beam 11, and an open structure transmission chain 22 is wound around the driving wheel 21. A driven wheel is sleeved on the driven row main beam 7, and an open structure transmission chain 22 is wound around the driven wheel. The drive wheel 21 and the transmission chains 22 on the driven wheel are connected to a ring-shaped transmission part 2 by two sections of transmission ropes 23. The transmission rope 23 and the transmission chain 22 are connected by a connecting assembly 24, and an adjusting bolt for adjusting the length of the connecting assembly 24 is provided in the connecting assembly 24.

[0030] The lower end of the driven row main beam 7 is provided with a supporting column 6 for supporting the driven row 3. There are multiple supporting columns 6. The brake 5 is connected between the supporting column 6 and the driven row main beam 7. The axis of the brake 5 is arranged obliquely to the axis of the supporting column 6. In this embodiment, the brake 5 includes a brake cylinder body 51. One end of the brake cylinder body 51 is provided with a brake rod 52. The brake cylinder body 51 is movably connected to the driven row main beam 7. The brake rod 52 is movably connected to the supporting column 6. A mounting seat 8 is fixedly connected to the driven row main beam 7. The brake cylinder body 51 is rotatably connected to the mounting seat 8 through a first connecting shaft 53. A connecting seat 55 is provided on the supporting column 6. The brake rod 52 is rotatably connected to the connecting seat 55 through a second connecting shaft 54.

[0031] Furthermore, the brake cylinder 51 contains the medium and its circuit, a control valve, a micro-actuator, and a micro-drive unit. The micro-drive unit is connected to the controller via an external signal line, which controls the operation of the driver 4 and brake 5. When the driver is operating, a signal is simultaneously sent to the brake drive unit. This opens the valve in the brake cylinder, the micro-drive unit begins to operate, and the medium in the cylinder is in a flowing state. The brake rod has no resistance, allowing the driven and driven main beams to operate synchronously. Similarly, when the driver stops operating, the drive controller sends a signal to the brake drive unit via a signal line. This closes the valve in the cylinder, stops the micro-actuator, and seals the medium in the cylinder. This creates resistance on the brake rod, preventing the driven main beam from rotating.

[0032] During normal operation, the driving motor of the driving unit 4 is started, driving the driving row main beam 11 to rotate. At the same time, the driving row main beam 11 is connected to the driven row main beam 7 through the transmission unit 2, thereby driving the driven row 3 to rotate synchronously with the driving row 1. In addition, when the driving unit 4 is working, the controller controls the brake 5 to perform synchronous action according to the rotation angle of the driving unit 4, that is, the brake rod 52 of the brake 5 is extended or retracted synchronously, and no resistance is generated when the driven row 3 is tracking, thereby ensuring the normal rotation of the driven row 3.

[0033] During stop tracking, the driving row 1 relies on the self-locking holding force of the reducer to keep the driving row 1 in a stable state, and at the same time pulls the driven row 3 through the transmission system, so that both the driving row 1 and the driven row 3 remain in a stable state.

[0034] During severe weather, the photovoltaic supports of the driven row 3 are affected by wind and rain and keep swinging. At this time, the driving row is also kept swinging by the transmission system, which increases the reducer load of the driving row. At this time, the brake 5 is controlled by the controller to work, and the brake 5 stops extending and retracting. At this time, a relatively rigid union is formed between the brake 5, the supporting column 6, and the driven row main beam 7. The brake 5 is used to resist the wind-induced vibration of the driven row main beam 7, and then the driven row 3 can be prevented from transmitting the wind-induced vibration to the driving row 1 through the transmission part 2, which greatly reduces the load of the reducer brake on the driving part 4 on the driving row 1, and also reduces the load of the transmission part 2, thereby improving the safety of the driving device and the transmission device.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0036] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A multi-row linked solar photovoltaic support with self-locking protection, comprising a driving row (1) and at least one driven row (3) connected to the driving row (1) through a transmission part (2), characterized in that: The driving row (1) is provided with a driving part (4), and the driven row (3) is provided with a brake (5); The driving row (1) is provided with a driving row main beam (11), and the driven row (3) is provided with a driven row main beam (7); The transmission part (2) includes a transmission chain (22) that is dynamically connected to the driving row main beam (11) and the driven row main beam (7), and the transmission chains (22) on the driving row main beam (11) and the driven row main beam (7) are connected via a transmission rope (23); One end of the brake (5) is connected to the main beam of the driving row, and the other end is connected to the support portion of the driven row.

2. A multi-row linked solar photovoltaic support with self-locking protection according to claim 1, characterized in that: A driving part (4) is provided in the driving row (1), and the driving part (4) is a driving motor. The driving part (4) is connected to the driving row main beam (11) through a speed reducer.

3. The multi-row linked solar photovoltaic support with self-locking protection according to claim 1, characterized in that: The driving row main beam (11) is sleeved with a driving wheel (21), and an open structure transmission chain (22) is wound around the driving wheel (21); the driven row main beam (7) is sleeved with a driven wheel, and an open structure transmission chain (22) is wound around the driven wheel; the driving wheel (21) and the transmission chain (22) on the driven wheel are connected to form a ring-shaped transmission part (2) through two sections of transmission ropes (23).

4. The multi-row linked solar photovoltaic support with self-locking protection according to claim 3 is characterized in that: The transmission rope (23) and the transmission chain (22) are connected via a connecting assembly (24), and an adjusting bolt for adjusting the length of the connecting assembly (24) is provided in the connecting assembly (24).

5. The multi-row linked solar photovoltaic support with self-locking protection according to claim 1, characterized in that: The lower end of the driven row main beam (7) is provided with a supporting column (6) for supporting the driven row (3), and a plurality of the supporting columns (6) are provided.

6. The multi-row linked solar photovoltaic support with self-locking protection according to claim 5, characterized in that: The brake (5) is connected between the supporting column (6) and the driven row main beam (7), and the axis of the brake (5) and the axis of the supporting column (6) are arranged obliquely.

7. The multi-row linked solar photovoltaic support with self-locking protection according to claim 6, characterized in that: The brake (5) includes a brake cylinder (51), one end of which is provided with a brake pull rod (52), the brake cylinder (51) is movably connected to the driven row main beam (7), and the brake pull rod (52) is movably connected to the support column (6).

8. The multi-row linked solar photovoltaic support with self-locking protection according to claim 7, characterized in that: A mounting seat (8) is fixedly connected to the driven row main beam (7), the brake cylinder body (51) is rotatably connected to the mounting seat (8) via a first connecting shaft (53), a connecting seat (55) is provided on the support column (6), and the brake pull rod (52) is rotatably connected to the connecting seat (55) via a second connecting shaft (54).

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