Flexible connection system for offshore floating type photovoltaic units

Abstract

The utility model belongs to the photovoltaic field, particularly relates to a flexible connection system for offshore floating type photovoltaic units, and provides the following scheme aiming at the problems that the existing flexible connection system cannot adapt to the marine environment and is easy to break: the flexible connection system comprises two offshore photovoltaic floating units; the number of the anti-collision rubbers is two, and the two anti-collision rubbers are connected to the side faces of the two offshore photovoltaic floating units through bolts respectively; the number of the anchor chains is four, the two ends of the anchor chains are connected with the side face bolts of the two offshore photovoltaic floating units respectively, and an approximately rigid connection structure between existing offshore floating type photovoltaic units is changed into a flexible connection structure, so that the wave resistance of the whole offshore floating type photovoltaic system is remarkably improved; therefore, the offshore floating photovoltaic unit is suitable for larger sea wave conditions, the rotating propellers can generate falling force on the offshore photovoltaic floating unit, and the offshore photovoltaic floating unit is prevented from floating under the action of waves.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, and in particular to an offshore floating photovoltaic unit flexible connection system. Background Art

[0002] A floating photovoltaic power station is a photovoltaic supporting device that uses a floating platform as a support. For example, a Chinese patent document with publication number: CN116674707A discloses a water surface floating photovoltaic power station.

[0003] However, in the above technical solution, the ship is moored at the berth of the dock, and the ship is restrained and fixed by mooring cables to prevent the ship from drifting. The fender structure can also prevent the ship from hitting the dock structure and damaging the dock structure. There are very few actual projects of existing offshore floating photovoltaic structures. The limited application is to directly use the floating photovoltaic structure of inland lakes at sea. The connection method between floating units is a high-strength plastic structure that allows a small amount of deformation and is approximately a rigid connection. This connection method is approximately a rigid connection and is suitable for water surfaces with small waves such as lakes and rivers. For marine environments with high winds and rough waves, this connection method is easily damaged by large waves. Existing floating photovoltaics can only be used when the wave height is less than 1.0m. When the wave height is greater than 1.0m, the connection system is easily broken. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art that the prior art cannot adapt to the marine environment and is prone to breakage, and proposes a flexible connection system for offshore floating photovoltaic units.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A flexible connection system for an offshore floating photovoltaic unit, comprising:

[0007] There are two offshore photovoltaic floating units;

[0008] Anti-collision rubbers: two anti-collision rubbers are provided, and the two anti-collision rubbers are respectively bolted to the sides of the two offshore photovoltaic floating units;

[0009] Anchor chains, with four anchor chains, both ends of which are respectively connected to the side bolts of the two offshore photovoltaic floating units;

[0010] Angle steel, which is welded to the outer edge of the offshore photovoltaic floating unit;

[0011] A transmission box, which is embedded in an opening at the bottom of the offshore photovoltaic floating unit;

[0012] The blade mechanism includes a main bevel gear, a secondary bevel gear, a rotating shaft and a propeller. The teeth of the main bevel gear mesh with the teeth of the secondary bevel gear. The axis of the secondary bevel gear is key-connected with the top of the rotating shaft. The surface of the rotating shaft is rotatably sleeved with the hole at the bottom end of the transmission case. The bottom end of the rotating shaft extends to the bottom of the transmission case and is key-connected with the axis of the propeller.

[0013] A power mechanism is connected to the large bevel gear. The power mechanism is used to drive the propeller to rotate, and the approximately rigid connection structure between the existing offshore floating photovoltaic units is changed into a flexible connection structure, so that the wave resistance of the entire offshore floating photovoltaic system is significantly improved, thereby making the offshore floating photovoltaic suitable for larger wave conditions. The rotating propeller can generate a downward force on the offshore photovoltaic floating unit to prevent the offshore photovoltaic floating unit from floating up under the action of waves.

[0014] As a preferred solution of the utility model, the power mechanism includes a power motor, a main gear, a slave gear and a rotating shaft. The output end of the power motor is key-connected with the axis center of the main gear, the teeth of the main gear are meshed with the teeth of the slave gear, the axis center of the slave gear is key-connected with the middle end of the surface of the rotating shaft, the surface of the rotating shaft is key-connected with the axis center of the main bevel gear, the power supply of the power motor is turned on, and the power motor is controlled by a motor controller. The power motor can drive the main gear to rotate, the main gear can drive the slave gear to rotate, the slave gear can drive the rotating shaft to rotate, and the rotating shaft can drive the main bevel gear to rotate.

[0015] As a preferred solution of the utility model, the surface of the power motor is connected to the internal bolts of the transmission box, both ends of the rotating shaft are rotatably sleeved with the internal part of the transmission box, the power motor is fixed by the transmission box to ensure the stability of the power motor, and the rotating shaft is rotatably arranged with the transmission box through bearings to ensure the smooth rotation of the rotating shaft.

[0016] As a preferred solution of the utility model, the offshore photovoltaic floating unit is connected to the anchor chain through angle steel, and twelve angle steels are welded into a frame, which can enhance the stability between multiple offshore photovoltaic floating units.

[0017] As a preferred solution of the utility model, the hole at the bottom end of the transmission box is provided with a sealed bearing, and the sealed bearing is sleeved with the rotating shaft. The sealed bearing is a waterproof bearing to prevent seawater from seeping in.

[0018] As a preferred solution of the utility model, the propeller is located at the bottom of the offshore photovoltaic floating unit, and the two anti-collision rubbers are close to each other, which is convenient for fixing the offshore photovoltaic floating unit.

[0019] Beneficial effects:

[0020] 1. The system consists of connecting anchor chains, anti-collision rubber, angle steel and other structures. The anchor chains are used to connect two adjacent offshore photovoltaic floating units to prevent them from being pulled apart by waves. High-strength angle steel is installed on the edge of the offshore photovoltaic floating units to increase their tensile strength. The anti-collision rubber installed on the inner side of two adjacent offshore photovoltaic floating units plays an energy dissipation role after the units collide with each other.

[0021] 2. The power mechanism can drive the main bevel gear to rotate, the main bevel gear can drive the auxiliary bevel gear to rotate, the auxiliary bevel gear can drive the rotating shaft to rotate, and the rotating shaft can drive the propeller to rotate;

[0022] In the utility model: the approximately rigid connection structure between the existing offshore floating photovoltaic units is changed into a flexible connection structure, so that the wave resistance of the entire offshore floating photovoltaic system is significantly improved, thereby making the offshore floating photovoltaic suitable for larger wave conditions. The rotating propeller can generate a downward force on the offshore photovoltaic floating unit to prevent the offshore photovoltaic floating unit from floating up under the action of waves. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0024] Figure 2 It is a spliced ​​stereogram of the utility model;

[0025] Figure 3 It is a three-dimensional diagram of the transmission box of the utility model;

[0026] Figure 4 This is a three-dimensional diagram of the interior of the transmission box of the utility model;

[0027] Figure 5 It is a three-dimensional diagram of the propeller of the present utility model.

[0028] In the figure: 1. Offshore photovoltaic floating unit; 2. Anti-collision rubber; 3. Anchor chain; 4. Angle steel; 5. Transmission box; 6. Power motor; 7. Main gear; 8. Slave gear; 9. Rotating shaft; 10. Main bevel gear; 11. Auxiliary bevel gear; 12. Rotating shaft; 13. Propeller. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Embodiment 1

[0031] Reference Figure 1-Figure 5, a flexible connection system for an offshore floating photovoltaic unit, comprising an offshore photovoltaic floating unit 1, wherein the offshore photovoltaic floating unit 1 is provided with two;

[0032] Anti-collision rubbers 2, two anti-collision rubbers 2 are provided, and the two anti-collision rubbers 2 are respectively bolted to the sides of the two offshore photovoltaic floating units 1;

[0033] Anchor chains 3, four of which are provided, and both ends of the anchor chains 3 are respectively connected with side bolts of two offshore photovoltaic floating units 1;

[0034] Angle steel 4, which is welded to the outer edge of the offshore photovoltaic floating unit 1;

[0035] A transmission box 5, the transmission box 5 is embedded in the opening at the bottom of the offshore photovoltaic floating unit 1;

[0036] The blade mechanism includes a main bevel gear 10, a secondary bevel gear 11, a rotating shaft 12 and a propeller 13. The teeth of the main bevel gear 10 are meshed with the teeth of the secondary bevel gear 11. The axis of the secondary bevel gear 11 is keyed to the top of the rotating shaft 12. The surface of the rotating shaft 12 is rotatably sleeved with a hole at the bottom end of the transmission case 5. The bottom end of the rotating shaft 12 extends to the bottom of the transmission case 5 and is keyed to the axis of the propeller 13.

[0037] The power mechanism is connected with the large bevel gear, and the power mechanism is used to drive the propeller 13 to rotate.

[0038] By means of the above structure: the approximately rigid connection structure between the existing offshore floating photovoltaic units is changed into a flexible connection structure, so that the wave resistance of the entire offshore floating photovoltaic system is significantly improved, thereby making the offshore floating photovoltaic suitable for larger wave conditions. The rotating propeller 13 can generate a downward force on the offshore photovoltaic floating unit 1 to prevent the offshore photovoltaic floating unit 1 from floating up under the action of waves.

[0039] See also Figure 4 The power mechanism includes a power motor 6, a main gear 7, a slave gear 8 and a rotating shaft 9. The output end of the power motor 6 is key-connected with the axis of the main gear 7. The teeth of the main gear 7 are meshed with the teeth of the slave gear 8. The axis of the slave gear 8 is key-connected with the middle end of the surface of the rotating shaft 9. The surface of the rotating shaft 9 is key-connected with the axis of the main bevel gear 10. When the power supply of the power motor 6 is turned on, the power motor 6 is controlled by a motor controller. The power motor 6 can drive the main gear 7 to rotate, the main gear 7 can drive the slave gear 8 to rotate, the slave gear 8 can drive the rotating shaft 9 to rotate, and the rotating shaft 9 can drive the main bevel gear 10 to rotate.

[0040] See also Figure 4The surface of the power motor 6 is connected to the internal bolts of the transmission box 5, and both ends of the rotating shaft 9 are rotatably sleeved with the internal part of the transmission box 5. The power motor 6 is fixed by the transmission box 5 to ensure the stability of the power motor 6. The rotating shaft 9 is rotatably arranged with the transmission box 5 through the bearing to ensure the smooth rotation of the rotating shaft 9.

[0041] See also Figure 1 The offshore photovoltaic floating unit 1 is connected to the anchor chain 3 through the angle steel 4. Twelve angle steels 4 are welded into a frame, which can enhance the stability between multiple offshore photovoltaic floating units 1.

[0042] See also Figure 4 The hole at the bottom of the transmission box 5 is provided with a sealed bearing, and the sealed bearing is set with the rotating shaft 12. The sealed bearing adopts a waterproof bearing to prevent seawater from infiltrating.

[0043] See also Figure 3 The propeller 13 is located at the bottom of the offshore photovoltaic floating unit 1, and the two anti-collision rubbers 2 are close to each other, which is convenient for fixing the offshore photovoltaic floating unit 1.

[0044] Embodiment 2

[0045] The difference between this embodiment and the first embodiment is that the power motor 6, the main gear 7, the slave gear 8 and the rotating shaft 9 are replaced by a rotating motor, and the rotating motor is connected to the main bevel gear 10. The rotating motor can directly drive the main bevel gear 10 to rotate, but the position of the rotating motor is too low. Therefore, the present application preferably uses the power motor 6, the main gear 7, the slave gear 8 and the rotating shaft 9.

[0046] It should be noted that the specific types of motors, electric push rods and detection probes to be used are selected by relevant technical personnel familiar with the field, and the above motors, electric push rods and detection probes are all existing technologies and will not be elaborated in this solution.

[0047] It should be noted that the specific type of power motor 6 to be used is selected by the relevant technical personnel familiar with the field, and the above power motor 6 belongs to the existing technology and will not be elaborated in this solution.

[0048] The offshore photovoltaic floating unit 1 adopts existing technology and can adopt a floating base with patent application number 202210559177.X.

[0049] The operation steps of the utility model are as follows: the offshore photovoltaic floating unit 1 is connected with anti-collision rubber 2 on all sides, and then the offshore photovoltaic floating units 1 are connected to each other using anchor chains 3. The angle steel 4 can enhance the strength of the offshore photovoltaic floating unit 1 and ensure the stability of the offshore photovoltaic floating unit 1. In order to enhance the stability, the power supply of the power motor 6 is turned on, and the power motor 6 is controlled by a motor controller. The power motor 6 can drive the main gear 7 to rotate, the main gear 7 can drive the slave gear 8 to rotate, the slave gear 8 can drive the rotating shaft 9 to rotate, the rotating shaft 9 can drive the main bevel gear 10 to rotate, the main bevel gear 10 can drive the secondary bevel gear 11 to rotate, the secondary bevel gear 11 can drive the rotating shaft 12 to rotate, the rotating shaft 12 can drive the propeller 13 to rotate, and the propeller 13 can press the offshore photovoltaic floating unit 1 into the water.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flexible connection system for offshore floating photovoltaic units, characterized in that: It comprises an offshore photovoltaic floating unit (1), wherein the offshore photovoltaic floating unit (1) is provided with two; Anti-collision rubbers (2), two anti-collision rubbers (2) are provided, and the two anti-collision rubbers (2) are respectively bolted to the sides of the two offshore photovoltaic floating units (1); Anchor chains (3), wherein four anchor chains (3) are provided, and both ends of the anchor chains (3) are respectively connected to side bolts of two offshore photovoltaic floating units (1); Angle steel (4), the angle steel (4) is welded to the outer edge of the offshore photovoltaic floating unit (1); A transmission box (5), the transmission box (5) is embedded in an opening at the bottom of the offshore photovoltaic floating unit (1); The blade mechanism comprises a main bevel gear (10), a secondary bevel gear (11), a rotating shaft (12) and a propeller (13); the teeth of the main bevel gear (10) mesh with the teeth of the secondary bevel gear (11); the axis of the secondary bevel gear (11) is key-connected with the top end of the rotating shaft (12); the surface of the rotating shaft (12) is rotatably sleeved with a hole at the bottom end of the transmission case (5); the bottom end of the rotating shaft (12) extends to the bottom of the transmission case (5) and is key-connected with the axis of the propeller (13); A power mechanism is connected to the large bevel gear and is used to drive the propeller (13) to rotate.

2. The offshore floating photovoltaic unit flexible connection system according to claim 1, characterized in that: The power mechanism comprises a power motor (6), a main gear (7), a slave gear (8) and a rotating shaft (9); the output end of the power motor (6) is key-connected with the axis center of the main gear (7); the teeth of the main gear (7) are meshed with the teeth of the slave gear (8); the axis center of the slave gear (8) is key-connected with the middle end of the surface of the rotating shaft (9); and the surface of the rotating shaft (9) is key-connected with the axis center of the main bevel gear (10).

3. The offshore floating photovoltaic unit flexible connection system according to claim 2, characterized in that: The surface of the power motor (6) is connected to the internal bolts of the transmission box (5), and both ends of the rotating shaft (9) are rotatably sleeved to the inside of the transmission box (5).

4. The offshore floating photovoltaic unit flexible connection system according to claim 1, characterized in that: The offshore photovoltaic floating unit (1) is connected to the anchor chain (3) via angle steels (4), and twelve angle steels (4) are welded into a frame.

5. The offshore floating photovoltaic unit flexible connection system according to claim 1, characterized in that: A sealing bearing is sleeved in the hole at the bottom end of the transmission box (5), and the sealing bearing is sleeved with the rotating shaft (12).

6. The offshore floating photovoltaic unit flexible connection system according to claim 1, characterized in that: The propeller (13) is located at the bottom of the offshore photovoltaic floating unit (1), and the two anti-collision rubbers (2) are close to each other.

Images