Photovoltaic main shaft and photovoltaic tracker

Abstract

The utility model provides a photovoltaic main shaft and a photovoltaic tracker, and relates to the photovoltaic tracker technology field, the photovoltaic main shaft comprises a main shaft main body, a hoop and an anti-rotation body, the cross section of the main shaft main body is circular, the main shaft main body can be conveniently matched with a bearing, the circumference of the main shaft main body is provided with a plurality of grooves, the hoop is provided with a mounting hole, and the anti-rotation body is arranged in the groove. The anti-rotation body is inserted into the groove through the mounting hole to achieve the anti-rotation effect of the hoop. By arranging the photovoltaic main shaft main body with the circular section, the photovoltaic main shaft main body can be conveniently matched with the bearing, switching is not needed, and the problems that the diameter is enlarged due to the fact that a traditional square main shaft needs to be switched, and then the cost is increased due to the fact that a large-diameter bearing needs to be used are solved; the anti-rotation body is matched with the groove to achieve the anti-rotation effect of the hoop.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic tracker technical field especially a kind of photovoltaic main shaft and photovoltaic tracker. BACKGROUND

[0002] The main shaft of photovoltaic tracker generally adopts square tube instead of round tube, because photovoltaic panel needs to be fixed on the main shaft, and there will be a problem of slipping on the round tube, so the square tube with the side length of more than 100mm is generally used at present, and the bending moment and torque are borne when using, mainly torsional stress, and the cooperation of square main shaft and bearing is relatively troublesome, and the bearing is round hole, so the adapter scheme is designed to change square into circle, and then the diameter of circle is larger, which causes the size of bearing to be larger, and the cost increases, and the present application is proposed to solve the above defects. SUMMARY

[0003] The utility model discloses a kind of photovoltaic main shaft and photovoltaic tracker, and a kind of new structure photovoltaic main shaft is presented, the problem of bearing size being larger and cost increasing existing in traditional square main shaft is solved.

[0004] To solve the above problems, the utility model provides a kind of photovoltaic main shaft, including main shaft body, hoop and anti-rotation body, the cross section of the main shaft body is circular, which is convenient for being matched with bearing, a plurality of grooves are distributed and set on the circumference of the main shaft body, the mounting hole is set on the hoop, and the anti-rotation body is inserted into the groove through the mounting hole to achieve the anti-rotation effect of the hoop.

[0005] Optionally, the grooves are continuously arranged along the length direction of the main shaft body, or can be arranged intermittently.

[0006] According to an embodiment of the utility model, the cross section of the groove is U-shaped, and the bottom surface of the groove can be a plane or a curved surface.

[0007] According to an embodiment of the utility model, rounded corners are used at the corners of the grooves to reduce stress concentration.

[0008] According to an embodiment of the utility model, the grooves are distributed and arranged in 2-4 groups on the circumference of the main shaft body, and any group can be arranged according to actual use.

[0009] According to an embodiment of the utility model, the anti-rotation body is a bolt, and the mounting hole is a bolt hole.

[0010] According to an embodiment of the utility model, the diameter of one end of the bolt inserted into the groove is less than or equal to the width of the groove.

[0011] According to an embodiment of the utility model, the diameter of one end of the bolt inserted into the groove is greater than the width of the groove.

[0012] A photovoltaic tracker comprises the photovoltaic spindle as described above.

[0013] The photovoltaic spindle has the advantages that the photovoltaic spindle body with a circular cross section is convenient to match with bearings without the need of an adapter, the diameter expansion of a traditional square spindle is solved, the cost increase caused by the use of a large-diameter bearing is avoided, the anti-rotation effect of a hoop is achieved by matching the anti-rotation body with the groove on the spindle body. BRIEF DESCRIPTION OF DRAWINGS

[0014] The photovoltaic spindle will be further described below in combination with the drawings and embodiments.

[0015] Figure 1 FIG. 1 is a structural schematic view of a spindle body;

[0016] Figure 2 FIG. 2 is a cross-sectional schematic view of the spindle body;

[0017] Figure 3 FIG. 3 is a structural schematic view of a photovoltaic spindle as a whole;

[0018] Figure 4 FIG. 4 is a cross-sectional schematic view of the photovoltaic spindle. DETAILED DESCRIPTION

[0019] The following description is only used to disclose the photovoltaic spindle so that those skilled in the art can implement the photovoltaic spindle. The embodiments in the following description are only examples, and those skilled in the art can think of other obvious modifications. The basic principles of the photovoltaic spindle defined in the following description can be applied to other embodiments, modification schemes, improvement schemes, equivalent schemes and other schemes without departing from the spirit and scope of the photovoltaic spindle.

[0020] Embodiment 1

[0021] A photovoltaic spindle comprises a spindle body 1, a hoop 2 and an anti-rotation body 3. Figures 1-4

[0022] The spindle body 1 is hollow inside and has a circular cross section, which is convenient to match with bearings without the need of an adapter, avoids the diameter expansion of a traditional square spindle, and avoids the cost increase caused by the use of a large-diameter bearing. Figure 1 Figure 2 The groove 11 is preferably a U-shaped groove with a flat bottom surface, and an anti-slip structure such as an anti-slip line can be arranged on the flat surface.

[0023] In other embodiments, the groove 11 can also be a V-shaped groove.

[0024] ​​In the embodiment, the grooves 11 are continuously arranged along the length direction of the spindle body 1, and four groups are evenly arranged on the circumference of the spindle body 1.

[0025] The hoop 2 is used to connect with the photovoltaic module, and the photovoltaic module is fixed on the spindle, such as Figure 3 Two groups of mounting holes 31 are arranged on the hoop 2, the anti-rotation body 3 is inserted into the groove 11 through the mounting hole 31 to achieve the anti-rotation effect of the hoop 2, and it is guaranteed that the screw and the hoop 2 cannot rotate around the spindle body 1, and preferably the anti-rotation body 3 is a bolt, the mounting hole 31 is a bolt hole, and the bolt is inserted into the groove 11 at one end with a diameter ≤ the width of the groove 11.

[0026] In other embodiments, the anti-rotation body 3 and the groove 11 can also be matched through clamping and the like.

[0027] A photovoltaic tracker comprises the above-mentioned photovoltaic spindle.

[0028] It should be understood by those skilled in the art that the above description and the embodiments of the utility model shown in the drawings are only as examples and do not limit the utility model. The purpose of the utility model has been completely and effectively realized. The function and structural principle of the utility model have been demonstrated and explained in the embodiments, and the implementation of the utility model can be any deformation and modification without departing from the principle.

Claims

1. A photovoltaic spindle, characterized by: The main shaft body (1) is circular in cross section, a plurality of grooves (11) are arranged on the circumference of the main shaft body (1), the clamping hoop (2) is provided with a mounting hole (31), and the anti-rotation body (3) is inserted into the groove (11) through the mounting hole (31) to achieve the anti-rotation effect of the clamping hoop (2).

2. Photovoltaic spindle according to claim 1, characterized in that The grooves (11) are continuously arranged along the length direction of the main shaft body (1).

3. The photovoltaic spindle of claim 1, wherein: The cross section of the groove (11) is U-shaped.

4. The photovoltaic spindle of claim 3, wherein: The corners of the groove (11) are all rounded.

5. Photovoltaic spindle according to any of claims 1 to 4, characterized in that The grooves (11) are arranged in 2-4 groups on the circumference of the main shaft body (1).

6. Photovoltaic spindle according to any of claims 1 to 4, characterized in that The anti-rotation body (3) is a bolt, and the mounting hole (31) is a bolt hole.

7. The photovoltaic spindle of claim 6, wherein: The diameter of one end of the bolt inserted into the groove (11) is less than or equal to the width of the groove (11).

8. The photovoltaic spindle of claim 6, wherein: The diameter of one end of the bolt inserted into the groove (11) is greater than the width of the groove (11).

9. A photovoltaic tracker characterized by: The photovoltaic main shaft comprises the main shaft body, the clamping hoop and the anti-rotation body.

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