A flat single-axis photovoltaic tracking bracket

Abstract

The present invention discloses a flat single-axis photovoltaic tracking bracket, comprising a first column, a worm gear reducer and a motor connected to the worm gear reducer are arranged at the upper end of the first column, a flat single axis is connected to the worm gear reducer, the flat single axis is arranged horizontally, a photovoltaic panel is connected to the flat single axis, and the flat single axis is characterized in that the flat single axis is connected to the photovoltaic panel through a buffer connection mechanism. In the present invention, the flat single axis is connected to the photovoltaic panel through a buffer connection mechanism, and the buffer connection mechanism enables the flat single axis and the photovoltaic panel to have good buffering and impact resistance, so that when encountering hail weather or foreign objects hitting the photovoltaic panel, the buffer connection mechanism can play a good buffering role, greatly reducing the impact of hail or foreign objects hitting the photovoltaic panel on the photovoltaic panel, thereby effectively reducing the damage to the photovoltaic panel.

Description

Technical Field

[0001] The invention relates to a tracking bracket, in particular to a flat single-axis photovoltaic tracking bracket. Background Art

[0002] In the field of photovoltaic power generation, photovoltaic panels are usually installed on flat single-axis tracking brackets. The flat single-axis tracking brackets can adjust the pitch angle of the photovoltaic panels according to the angle of sunlight, so that the photovoltaic panels can be better aligned with the sun and improve power generation efficiency.

[0003] The existing flat single-axis tracking bracket usually includes a column, a worm gear reducer and a motor connected to the worm gear reducer are arranged at the upper end of the column, a flat single axis is connected to both sides of the worm gear reducer, the flat single axis is arranged horizontally, and a plurality of photovoltaic panels are connected to the flat single axis. When in use, the flat single axis is driven to rotate by the worm gear reducer, so as to adjust the pitch angle of the photovoltaic panel, so that the photovoltaic panel can be adjusted in pitch as the angle of the sun changes, thereby improving the power generation efficiency of the photovoltaic panel. The existing photovoltaic panel is usually rigidly connected to the flat single axis by bolt connection. This connection method has poor impact resistance. When encountering hail weather or foreign objects hitting the photovoltaic panel, since the photovoltaic panel and the flat single axis are rigidly connected, the flat single axis cannot be well buffered when impacted by foreign objects, and the photovoltaic panel is easily damaged due to excessive impact. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the existing flat single-axis tracking bracket that the photovoltaic panel is usually rigidly connected to the flat single axis by bolt connection, and this connection method has poor impact resistance. When encountering hail weather or other objects hitting the photovoltaic panel, the photovoltaic panel and the flat single axis are rigidly connected. When the flat single axis is impacted by external objects, the photovoltaic panel cannot be well buffered and the photovoltaic panel is easily damaged due to excessive impact. A flat single-axis photovoltaic tracking bracket is provided, which can effectively solve the above problem.

[0005] The objective of the present invention is achieved through the following technical solution: a flat single-axis photovoltaic tracking bracket, comprising a first column, a worm gear reducer and a motor connected to the worm gear reducer are arranged at the upper end of the first column, a flat single axis is connected to the worm gear reducer, the flat single axis is horizontally arranged, a photovoltaic panel is connected to the flat single axis, and the flat single axis and the photovoltaic panel are connected by a buffer connection mechanism.

[0006] In the present invention, the flat single shaft rotates under the drive of the worm gear reducer, thereby driving the photovoltaic panel to rotate, realizing the pitch angle adjustment of the photovoltaic panel, and then realizing the solar tracking of the photovoltaic panel, and improving the power generation efficiency of the photovoltaic panel. In the present invention, the flat single shaft is connected to the photovoltaic panel through a buffer connection mechanism, and the buffer connection mechanism makes the flat single shaft and the photovoltaic panel have good buffering and impact resistance. In this way, when encountering hail weather or foreign objects hitting the photovoltaic panel, the buffer connection mechanism can play a good buffering role, greatly reducing the impact of hail or foreign objects hitting the photovoltaic panel on the photovoltaic panel, thereby effectively reducing the damage to the photovoltaic panel.

[0007] Preferably, a support seat is further included, and a connecting shaft is provided at one end of the flat single shaft away from the worm gear reducer, and the connecting shaft is rotatably connected to the support seat. By providing the support seat at one end of the flat single shaft, the support seat plays an auxiliary supporting role for the end of the flat single shaft, thereby reducing the curvature of the flat single shaft.

[0008] Preferably, the support seat includes a second column and a bearing seat arranged at the upper end of the second column, and the connecting shaft is rotatably connected to the bearing seat.

[0009] Preferably, the buffer connection mechanism comprises connection flanges arranged on both sides of the flat single shaft, and a connection cylinder arranged on the photovoltaic panel corresponding to the connection flanges, the connection cylinder is a directional cylinder structure, a connection block is arranged on the connection flange, the connection block is inserted into the connection cylinder, and the connection block contacts the inner wall of one side of the connection cylinder; a limited guide groove is arranged on the connection block, and a limit screw corresponding to the limit guide groove is threadedly connected on the connection cylinder, and the front end of the limit screw extends into the limit guide groove; a guide cylinder is arranged on the connection block, and a telescopic rod is slidably connected to the guide cylinder, a first spring is arranged between one end of the telescopic rod and the bottom of the guide cylinder, and a roller is connected to the other end of the telescopic rod; a damping capsule is arranged on the inner wall of the connection cylinder, the damping capsule is in a long strip shape, a liquid medium is filled in the damping capsule, and the roller contacts the surface of the damping capsule; an adjusting device for adjusting the total amount of liquid medium in the damping capsule is arranged on the connection cylinder; an elastic member is arranged between the connection cylinder and the connection flange. The damping capsule is made of flexible material. The width of the limiting guide groove is slightly larger than the diameter of the limiting screw, and the front end of the limiting screw extends into the limiting guide groove. With the cooperation of the two, the photovoltaic panel can move up and down within the length range of the limiting guide groove; the elastic member arranged between the connecting tube and the connecting flange can play the role of elastic buffering. When hail or other foreign objects hit the photovoltaic panel, the photovoltaic panel will move downward after being impacted. Under the action of the elastic member, it plays a good buffering role and improves the impact resistance of the photovoltaic panel; at the same time, when the photovoltaic panel moves up and down under the impact, the roller will roll on the surface of the damping capsule; the roller is sunk to a certain depth on the surface of the damping capsule, so the damping capsule will produce a certain damping force on the rolling of the roller, so that it can have a certain damping effect on the up and down movement of the photovoltaic panel. Through damping, the impact on the photovoltaic panel can be consumed and attenuated, and the up and down vibration amplitude of the photovoltaic panel when it is impacted can be reduced. The magnitude of the damping force is related to the depth of the roller sunk into the outer surface of the damping capsule; the deeper the roller is sunk, the greater the damping force. By adjusting the total amount of liquid medium in the damping bladder through the adjusting device, the depth of the roller sunk into the outer surface of the damping bladder can be adjusted; when the liquid medium is filled into the damping bladder through the adjusting device, the damping bladder expands and the damping airbag gradually tightens, so that the depth of the roller sunk into the outer surface of the damping airbag is reduced, and the damping force of the photovoltaic panel when it moves up and down is also reduced; on the contrary, when the total amount of liquid medium in the damping bladder is reduced, the tension of the damping airbag decreases, so that the roller's sunk depth will increase under the action of the first spring, and the damping force of the roller when rolling will also increase. Therefore, by adjusting the total amount of liquid medium in the damping bladder through the adjusting device, the damping effect of the photovoltaic panel when it moves up and down can be adjusted as needed.

[0010] Preferably, the elastic member is a "C"-shaped spring sheet, and two ends of the elastic member are in contact with the connecting tube and the connecting flange respectively.

[0011] Preferably, the elastic member is made of spring steel.

[0012] Preferably, the adjusting device comprises a cylinder, in which a piston is arranged, a threaded hole is arranged at one end of the cylinder, a piston cavity is formed between the other end of the cylinder and the piston, and a liquid medium is filled in the piston cavity; an adjusting screw is threadedly connected in the threaded hole, one end of the adjusting screw is in contact with the piston, and the other end of the adjusting screw extends out of the cylinder; the cylinder and the damping capsule are connected by a connecting pipe, and the connecting pipe connects the piston cavity and the damping capsule; a second spring is arranged in the piston cavity, and the two ends of the second spring are in contact with the piston and the inner wall of the cylinder respectively. When it is necessary to increase the total amount of liquid medium in the damping bladder, it is only necessary to rotate the adjusting screw in one direction. At this time, the adjusting screw pushes the piston toward one end of the cylinder, the volume of the piston chamber is reduced, and part of the liquid medium in the piston chamber is pressed into the damping bladder by the piston, thereby increasing the total amount of liquid medium in the damping bladder and expanding the damping bladder. On the contrary, if it is necessary to reduce the total amount of liquid medium in the damping bladder, it is only necessary to rotate the adjusting screw in the opposite direction. During this process, the piston moves toward the other end of the cylinder under the action of the second spring, the volume of the piston chamber is increased, and part of the liquid medium in the damping bladder flows back into the piston chamber, thereby reducing the total amount of liquid medium in the damping bladder.

[0013] Preferably, the liquid medium is a damping fluid.

[0014] Preferably, the damping bladder is made of rubber.

[0015] The beneficial effect of the present invention is that: in the present invention, the flat single shaft and the photovoltaic panel are connected by a buffer connection mechanism, and the buffer connection mechanism enables the flat single shaft and the photovoltaic panel to have good buffering and impact resistance. In this way, when encountering hail weather or foreign objects hitting the photovoltaic panel, the buffer connection mechanism can play a good buffering role, greatly reducing the impact on the photovoltaic panel caused by hail or foreign objects hitting the photovoltaic panel, thereby effectively reducing the damage to the photovoltaic panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 for Figure 1 Cross-sectional view along the AA direction.

[0018] Figure 3 for Figure 2 Enlarged view of part B in the middle.

[0019] Figure 4 It is a structural cross-sectional view of the adjusting device.

[0020] In the figure: 1. first column, 2. worm gear reducer, 3. motor, 4. flat single shaft, 5. second column, 6. bearing seat, 7. photovoltaic panel, 8. connecting flange, 9. connecting cylinder, 10. connecting block, 11. limiting guide groove, 12. limiting screw, 13. guide cylinder, 14. telescopic rod, 15. first spring, 16. roller, 17. damping capsule, 18. connecting pipe, 19. elastic member, 20. adjusting device, 21. cylinder, 22. piston, 23. adjusting screw, 24. piston chamber, 25. second spring. DETAILED DESCRIPTION

[0021] The present invention will be further described below through specific implementation modes in conjunction with the accompanying drawings.

[0022] Embodiment 1:

[0023] like Figures 1 to 4 As shown, a flat single-axis photovoltaic tracking bracket includes a first column 1 and a support base. A worm gear reducer 2 and a motor 3 connected to the worm gear reducer are arranged at the upper end of the first column 1. Flat single shafts 4 are connected to both sides of the worm gear reducer 3, and the flat single shaft 4 is arranged horizontally. A photovoltaic panel 7 is connected to the flat single shaft 4. The flat single shaft 4 is connected to the photovoltaic panel 7 through a buffer connection mechanism. The support base includes a second column 5, and a bearing seat 6 is arranged at the upper end of the second column 5. A connecting shaft is arranged at one end of the flat single shaft 4 away from the worm gear reducer 2, and the connecting shaft is rotatably connected to the bearing seat 6.

[0024] The buffer connection mechanism includes a connection flange 8 arranged on both sides of the flat single shaft 4, and a connection cylinder 9 arranged on the photovoltaic panel 7 and corresponding to the connection flange 8. The connection cylinder 9 is a directional cylinder structure. A connection block 10 is arranged on the connection flange 8. The connection block 10 is inserted into the connection cylinder 9, and the connection block 10 contacts the inner wall of one side of the connection cylinder 9. A limited guide groove 11 is arranged on the connection block 10, and a limit screw 12 corresponding to the limit guide groove 11 is threadedly connected on the connection cylinder 9, and the front end of the limit screw 12 extends into the limit guide groove 11. A guide cylinder 13 is arranged on the connection block 10, and a telescopic rod 14 is slidably connected to the guide cylinder 13. A first spring 15 is arranged between one end of the telescopic rod 14 and the bottom of the guide cylinder 13, and a roller 16 is rotatably connected to the other end of the telescopic rod 14. A damping capsule 17 is arranged on the inner wall of the connection cylinder 9, and the damping capsule 17 is in a long strip shape, and a liquid medium is filled in the damping capsule 17. The damping capsule 17 is made of flexible material. In the present application, the damping capsule 17 is made of rubber. The roller 16 contacts the surface of the damping capsule 17. The roller 16 sinks into a certain depth of the outer surface of the damping capsule 17. The roller 16 can roll on the outer surface of the damping capsule 17. An elastic member 19 is provided between the connecting cylinder 9 and the connecting flange 8. The elastic member 19 is a "C"-shaped spring sheet, and the two ends of the elastic member 19 are respectively in contact with the connecting cylinder and the connecting flange. The elastic member 19 is made of spring steel. An adjusting device 20 for adjusting the total amount of liquid medium in the damping capsule is provided on the connecting cylinder 9. The adjusting device 20 includes a cylinder 21, a piston 22 is provided in the cylinder 21, a threaded hole is provided at one end of the cylinder 21, a piston chamber 24 is formed between the other end of the cylinder 21 and the piston 22, and the piston chamber 24 is filled with liquid medium. An adjusting screw 23 is threadedly connected in the threaded hole, one end of the adjusting screw 23 is in contact with the piston 22, and the other end of the adjusting screw 23 extends out of the cylinder 21. The cylinder 21 is connected to the damping capsule 17 through a connecting pipe 18, and the connecting pipe 18 connects the piston cavity 24 and the damping capsule 17. A second spring 25 is provided in the piston cavity 24, and the two ends of the second spring 25 are in contact with the inner wall of the piston 22 and the cylinder 21 respectively. In the present invention, the liquid medium is a damping liquid. The working mode of the regulating device is as follows: when it is necessary to increase the total amount of liquid medium in the damping capsule, it is only necessary to rotate the adjusting screw in one direction, at which time the adjusting screw pushes the piston toward one end of the cylinder, the volume of the piston cavity is reduced, and part of the liquid medium in the piston cavity is pressed into the damping capsule by the piston, thereby increasing the total amount of liquid medium in the damping capsule and expanding the damping capsule; on the contrary, if the total amount of liquid medium in the damping capsule is to be reduced, it is only necessary to rotate the adjusting screw in the opposite direction. In this process, the piston moves toward the other end of the cylinder under the action of the second spring, the volume of the piston cavity is increased, and part of the liquid medium in the damping capsule flows back to the piston cavity, thereby reducing the total amount of liquid medium in the damping capsule.

[0025] The buffering principle of the buffer connection mechanism is as follows: the front end of the limit screw extends into the limit guide groove, and with the cooperation of the two, the photovoltaic panel can move up and down within the length range of the limit guide groove; the elastic member arranged between the connection tube and the connection flange can play the role of elastic buffering; when hail or other foreign objects hit the photovoltaic panel, the photovoltaic panel will move downward after being impacted, and under the action of the elastic member, it plays a good buffering role, improving the impact resistance of the photovoltaic panel; at the same time, when the photovoltaic panel moves up and down under the impact, the roller will roll on the surface of the damping capsule; the roller is sunk to a certain depth on the surface of the damping capsule, so the damping capsule will produce a certain damping force on the rolling of the roller, so that it can have a certain damping effect on the up and down movement of the photovoltaic panel, and through damping, the impact on the photovoltaic panel can be consumed and attenuated, reducing the up and down vibration amplitude of the photovoltaic panel when it is impacted. The magnitude of the damping force is related to the depth of the roller sunk into the outer surface of the damping capsule; the deeper the roller is sunk, the greater the damping force. By adjusting the total amount of liquid medium in the damping bladder through the adjusting device, the depth of the roller sunk into the outer surface of the damping bladder can be adjusted; when the liquid medium is filled into the damping bladder through the adjusting device, the damping bladder expands and the damping airbag gradually tightens, so that the depth of the roller sunk into the outer surface of the damping airbag is reduced, and the damping force of the photovoltaic panel when it moves up and down is also reduced; on the contrary, when the total amount of liquid medium in the damping bladder is reduced, the tension of the damping airbag decreases, so that the roller's sunk depth will increase under the action of the first spring, and the damping force of the roller when rolling will also increase. Therefore, by adjusting the total amount of liquid medium in the damping bladder through the adjusting device, the damping effect of the photovoltaic panel when it moves up and down can be adjusted as needed.

[0026] In the present invention, the flat single shaft rotates under the drive of the worm gear reducer, thereby driving the photovoltaic panel to rotate, realizing the pitch angle adjustment of the photovoltaic panel, and then realizing the solar tracking of the photovoltaic panel, and improving the power generation efficiency of the photovoltaic panel. In the present invention, the flat single shaft is connected to the photovoltaic panel through a buffer connection mechanism, and the buffer connection mechanism makes the flat single shaft and the photovoltaic panel have good buffering and impact resistance. In this way, when encountering hail weather or foreign objects hitting the photovoltaic panel, the buffer connection mechanism can play a good buffering role, greatly reducing the impact of hail or foreign objects hitting the photovoltaic panel on the photovoltaic panel, thereby effectively reducing the damage to the photovoltaic panel.

[0027] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flat single-axis photovoltaic tracking bracket, comprising a first column, a worm gear reducer and a motor connected to the worm gear reducer are arranged at the upper end of the first column, a flat single axis is connected to the worm gear reducer, the flat single axis is arranged horizontally, and a photovoltaic panel is connected to the flat single axis, characterized in that: The flat single shaft is connected to the photovoltaic panel via a buffer connection mechanism; The buffer connection mechanism includes connecting flanges with connecting blocks arranged on both sides of the flat single shaft, a directional cylindrical connecting tube arranged on the photovoltaic panel corresponding to the connecting flange, a connecting block with a limiting guide groove inserted into the connecting tube and in contact with the inner wall thereof; the connecting tube is threadedly connected with a limiting screw extending into the limiting guide groove; the connecting block is provided with a guide tube slidably connected to a telescopic rod, one end of the telescopic rod and the bottom of the guide tube are provided with a first spring, and the other end is connected to a roller in contact with the damping capsule; the inner wall of the connecting tube is provided with a damping capsule in the shape of a long strip and filled with a liquid medium, and an adjusting device for adjusting the total amount of the liquid medium is provided on the connecting tube with an elastic member between the connecting flange.

2. The flat single-axis photovoltaic tracking bracket according to claim 1, characterized in that: It also includes a support seat. A connecting shaft is provided on the end of the flat single shaft away from the worm gear reducer, and the connecting shaft is rotatably connected to the support seat.

3. The flat single-axis photovoltaic tracking bracket according to claim 2, characterized in that: The support seat comprises a second column and a bearing seat arranged at the upper end of the second column, and the connecting shaft is rotatably connected to the bearing seat.

4. The flat single-axis photovoltaic tracking bracket according to claim 1, characterized in that: The elastic member is a "C"-shaped spring sheet, and two ends of the elastic member are respectively in contact with the connecting tube and the connecting flange.

5. The flat single-axis photovoltaic tracking bracket according to claim 4, characterized in that: The elastic member is made of spring steel.

6. The flat single-axis photovoltaic tracking bracket according to claim 1, characterized in that: The adjusting device comprises a cylinder, a piston is arranged in the cylinder, a threaded hole is arranged at one end of the cylinder, a piston cavity is formed between the other end of the cylinder and the piston, and a liquid medium is filled in the piston cavity; an adjusting screw is threadedly connected in the threaded hole, one end of the adjusting screw is in contact with the piston, and the other end of the adjusting screw extends out of the cylinder; the cylinder and the damping capsule are connected by a connecting pipe, and the connecting pipe connects the piston cavity and the damping capsule; a second spring is arranged in the piston cavity, and the two ends of the second spring are in contact with the inner wall of the piston and the cylinder respectively.

7. The flat single-axis photovoltaic tracking bracket according to claim 1, characterized in that: The liquid medium is damping fluid.

8. The flat single-axis photovoltaic tracking bracket according to claim 1, characterized in that: The damping capsule is made of rubber.

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