A photovoltaic module tracking support bearing assembly

Abstract

The utility model relates to a kind of photovoltaic module tracking support bearing assembly, including the column fixed on ground, the column upper end is equipped with bearing seat, lower hemispherical bearing is rolled in the bearing seat, upper hemispherical bearing is equipped with in cooperation on lower hemispherical bearing upper end face, the main beam of tracking support is threaded over the inner hole formed by lower hemispherical bearing and upper hemispherical bearing, the outer periphery of the upper hemispherical bearing is equipped with the grip hoop that grips upper hemispherical bearing, the inner periphery of the grip hoop and the outer periphery of upper hemispherical bearing clearance fit.The utility model supports the main beam of tracking support in the inner hole formed by lower hemispherical bearing and upper hemispherical bearing, in use process, not only can satisfy the rotation of main beam in east-west axis direction, but also can adjust the gradient of main beam in north-south axis direction;Upper hemispherical bearing is gripped using grip hoop, and installation structure is simplified.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module technology, and in particular to a bearing assembly used in a photovoltaic module tracking bracket. Background Technology

[0002] A tracking bracket is a photovoltaic mounting system that can automatically adjust the angle of photovoltaic modules to follow the movement of the sun, thereby maximizing the efficiency of photovoltaic modules in capturing solar energy.

[0003] To overcome the problems of using conventional cross-section square tubes, round tubes, and rectangular tubes as the main beams of tracking supports, and more importantly, to adapt to sloping terrain, square tubes, round tubes, rectangular tubes, and octagonal tubes are now mostly used as the main beams of tracking supports. These materials not only have torsional and bending resistance but are also easy to install and manufacture.

[0004] In the existing technology, in order to solve the requirement that the main beam of the tracking support can adapt to the operation on slope, the bearing assembly usually adopts multiple structural components and sets waist-shaped holes on the structural components to realize the north-south slope adjustment of the main beam. The connection of multiple structural components makes the overall structure complicated, which not only increases the production cost and production cycle, but also makes it difficult to maintain and replace on site. Summary of the Invention

[0005] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides a photovoltaic module tracking bracket bearing assembly with a simple structure and improved adaptability to different terrains.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a photovoltaic module tracking bracket bearing assembly, including a column fixed to the ground, a bearing seat installed at the upper end of the column, a lower hemispherical bearing rollingly disposed in the bearing seat, an upper hemispherical bearing fitted on the upper end face of the lower hemispherical bearing, the main beam of the tracking bracket passing through the inner hole formed by the lower hemispherical bearing and the upper hemispherical bearing, and a clamping clamp for holding the upper hemispherical bearing on the outer circumferential surface of the upper hemispherical bearing, the inner circumferential surface of the clamping clamp being clearance-fitted with the outer circumferential surface of the upper hemispherical bearing.

[0007] Specifically, the column is an I-beam, and support seats are fixed on both sides of the upper end of the column. A slotted seat with an upward opening is fixed between the support seats, and the bearing seat is embedded in the slotted seat and fixed.

[0008] Furthermore, the two sides of the lower hemispherical bearing have protruding edges, and the two ends of the upper hemispherical bearing are embedded between the protruding edges. Fixing bolts for fixing the upper hemispherical bearing are connected between the corresponding protruding edges on the side of the lower hemispherical bearing.

[0009] Furthermore, the clamp includes a spherical part that mates with the spherical surface of the outer circumference of the upper hemispherical bearing. The spherical part has rolled portions on both sides, and the clamp is fixed to both ends of the groove seat through the rolled portions.

[0010] Furthermore, the bearing housing has a through hole at the center of the inner ring, and a sand-leaking hole corresponding to the through hole is provided on the bottom surface of the grooved seat.

[0011] Furthermore, a grounding component is fixed between the convex edges on one side of the lower hemispherical bearing.

[0012] The beneficial effects of this utility model are as follows: By supporting the main beam of the tracking bracket in the inner hole formed by the lower hemispherical bearing and the upper hemispherical bearing, this utility model can not only satisfy the rotation of the main beam in the east-west axis direction, but also adjust the slope of the main beam in the north-south axis direction during use; the use of clamps to hold the upper hemispherical bearing simplifies the installation structure. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is an exploded structural diagram of the upper and lower hemispherical bearings and bearing housing described in this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the clamp described in this utility model.

[0017] Figure 4 This is a structural schematic diagram of the slotted seat described in this utility model.

[0018] In the diagram: 1. Column, 2. Bearing seat, 2-1. Through hole, 3. Lower hemispherical bearing, 3-1. Protruding edge, 4. Upper hemispherical bearing, 5. Main beam, 6. Clamp, 6-1. Spherical part, 6-2. Flipped part, 7. Support seat, 8. Groove seat, 8-1. Sand leakage hole, 9. Fixing bolt, 10. Grounding component, 11. Base plate. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0020] like Figures 1-4The diagram shows a photovoltaic module tracking bracket bearing assembly for supporting the main beam 5 of the tracking bracket. The main beam 5 is made of octagonal tube. The bearing assembly includes a column 1 made of I-beam steel. A base plate 11 is fixed to the bottom of the column 1, and the column 1 is fixed to the ground by the base plate 11.

[0021] Support seats 7 are fixed on both sides of the upper end of the column 1. A slotted seat 8 with the opening facing upward is fixed between the upper surfaces of the support seats 7. A bearing seat 2 with an inner spherical surface is embedded in the slotted seat 8. Fastening bolts for fixing the bearing seat 2 are respectively passed through the two sides of both ends of the slotted seat 8.

[0022] The bearing housing 2 is provided with a lower hemispherical bearing 3 that mates with the spherical surface of the inner ring of the bearing housing 2. An upper hemispherical bearing 4 is provided on the upper end face of the lower hemispherical bearing 3. The two sides of the lower hemispherical bearing 3 have protruding edges 3-1. The two ends of the upper hemispherical bearing 4 are embedded between the protruding edges 3-1. Fixing bolts 9 are connected between the corresponding protruding edges 3-1 on the side of the lower hemispherical bearing 3 to fix the upper hemispherical bearing 4. The main beam 5 of the tracking bracket passes through the octagonal inner hole formed by the lower hemispherical bearing 3 and the upper hemispherical bearing 4.

[0023] The upper hemispherical bearing 4 is provided with a clamp 6 on its outer peripheral surface. The clamp 6 includes a spherical part 6-1, and there are rolled parts 6-2 on both sides of the spherical part 6-1. The inner peripheral surface of the spherical part 6-1 covers the outer peripheral surface of the upper hemispherical bearing 4 and the two are in spherical clearance fit. The clamp 6 is fixed to both ends of the groove seat 7 through the rolled parts 6-2 to hold the upper hemispherical bearing 4.

[0024] Using clamps 6 to hold the upper hemispherical bearing 4 not only ensures that the upper hemispherical bearing 4 cannot fall off, thus saving the corresponding limit stop, but also ensures that there is no relative displacement space between the upper hemispherical bearing 4 and the bearing seat 2. Even if there is relative displacement between the main beam 5 and the column 1, the upper hemispherical bearing 4 will not have relative displacement with the bearing seat 2, thus reducing safety hazards.

[0025] The bearing housing 2 has a through hole 2-1 at the center of its inner ring, and the bottom surface of the slotted seat 8 has a sand-draining hole 8-1 that corresponds to the through hole 2-1 and is elongated in shape. In this way, during the use of the photovoltaic module, the sand generated by the wind can flow out of the slotted seat 8 through the sand-draining hole 8-1 to prevent wear on the bearing.

[0026] A grounding component 10 is fixed between the convex edge 3-1 on one side of the lower hemispherical bearing 3 to improve the safety of the tracking bracket.

[0027] Generally, during the use of the tracking bracket, the direction along the axis of the main beam 5 is the north-south axis, and the direction perpendicular to the axis of the main beam 5 is the east-west axis. When the photovoltaic module installation site is flat, the main beam 5 is parallel to the ground, and the main beam 5 only needs to rotate around the north-south axis. However, if the installation site has a slope, in order to ensure that the photovoltaic module tracks the sun normally, the main beam 5 must also be parallel to the ground. Therefore, the main beam 5 needs to rotate a certain angle relative to the column around the east-west axis.

[0028] This invention supports the main beam 5 of the tracking bracket within the inner hole formed by the lower hemispherical bearing 3 and the upper hemispherical bearing 4, thereby enabling the main beam 5 to rotate in the east-west direction and also adjusting the slope of the main beam 5 in the north-south direction, allowing the tracking bracket to adapt to the requirements of running on slopes.

[0029] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A photovoltaic module tracking bracket bearing assembly, comprising a column (1) fixed to the ground, characterized in that: The column (1) is equipped with a bearing seat (2) at its upper end. A lower hemispherical bearing (3) is rolled inside the bearing seat (2). An upper hemispherical bearing (4) is fitted on the upper end face of the lower hemispherical bearing (3). The main beam (5) of the tracking bracket passes through the inner hole formed by the lower hemispherical bearing (3) and the upper hemispherical bearing (4). The outer circumferential surface of the upper hemispherical bearing (4) is provided with a clamp (6) that holds the upper hemispherical bearing (4). The inner circumferential surface of the clamp (6) is in clearance fit with the outer circumferential surface of the upper hemispherical bearing (4).

2. The photovoltaic module tracking bracket bearing assembly as described in claim 1, characterized in that: The column (1) is an I-beam. Support seats (7) are fixed on both sides of the upper end of the column (1). A slotted seat (8) with the opening facing upward is fixed between the support seats (7). The bearing seat (2) is embedded in the slotted seat (8) and fixed.

3. The photovoltaic module tracking bracket bearing assembly as described in claim 2, characterized in that: The lower hemispherical bearing (3) has two protruding edges (3-1) on both sides. The upper hemispherical bearing (4) is embedded between the two protruding edges (3-1). The lower hemispherical bearing (3) is connected to the corresponding protruding edges (3-1) on the side of the lower hemispherical bearing (3) by fixing bolts (9) for fixing the upper hemispherical bearing (4).

4. The photovoltaic module tracking bracket bearing assembly as described in claim 3, characterized in that: The clamp (6) includes a spherical part (6-1) that mates with the outer circumferential surface of the upper hemispherical bearing (4). The spherical part (6-1) has a rolled part (6-2) on each side. The clamp (6) is fixed to both ends of the groove seat (8) through the rolled part (6-2).

5. The photovoltaic module tracking bracket bearing assembly as described in claim 3, characterized in that: The bearing housing (2) has a through hole (2-1) at the center of the inner ring, and the grooved seat (8) has a sand leakage hole (8-1) corresponding to the through hole (2-1) on the bottom surface of the groove.

6. The photovoltaic module tracking bracket bearing assembly as described in claim 3, characterized in that: A grounding element (10) is fixed between the convex edge (3-1) on one side of the lower hemispherical bearing (3).

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