Photovoltaic main beam, photovoltaic support assembly and photovoltaic system

Abstract

The present invention relates to the field of photovoltaic support technology, in particular to a photovoltaic main beam, a photovoltaic support assembly and a photovoltaic system, wherein the photovoltaic main beam comprises a main beam body and a first limiting portion arranged on the main beam body, the main beam body and the first limiting portion form an integrated structure or a split structure, and on the cross section of the photovoltaic main beam, the distance between the first limiting portion and the center of the main beam body is greater than the distance between the rest of the photovoltaic main beam and the center of the main beam body; the photovoltaic bearing is provided with a limiting groove matched with a limiting connector, the photovoltaic main beam is passed through an inner mounting hole of the photovoltaic bearing and the limiting connector is passed through the limiting groove; the shaft The bearing seat is provided with a bearing mounting hole which passes through along its axial direction and the photovoltaic bearing is rotatably arranged in the bearing mounting hole. A second limiting portion is provided at a position adjacent to the bearing mounting hole of the bearing seat. The second limiting portion is constructed so that when the photovoltaic bearing rotates, the second limiting portion cooperates with the limiting connecting piece to limit the rotation of the photovoltaic bearing within a preset angle. When the photovoltaic main beam rotates, the limiting connecting piece fixed on the outer wall of the main beam body rotates at a larger radius on the side farther from the center of the main beam body, and cooperates with the baffle and the limiting rib installed on the bearing seat to limit the rotation angle of the photovoltaic main beam.

Description

Technical Field

[0001] The present invention relates to a field, and in particular to a photovoltaic main beam, a photovoltaic support assembly and a photovoltaic system. Background Art

[0002] A photovoltaic tracking system is a device that automatically adjusts to optimize the solar panels' reception of sunlight. This system uses motors, sensors, and control systems to track the sun's position and angle in real time, ensuring that the photovoltaic panels are always facing the sun, thereby improving the solar panels' power generation efficiency.

[0003] At present, the pain points of photovoltaic tracking systems in the industry are mainly concentrated on the instability of photovoltaic systems under strong wind conditions. Under strong wind conditions, due to the large area of ​​photovoltaic modules, photovoltaic modules need to withstand large wind loads. When the wind load is transmitted to the photovoltaic bracket, it generates a large force on the photovoltaic bracket, which poses a great challenge to the structural stability. The mainstream solution on the market is to reduce the wind force on the photovoltaic modules by placing them flat or at a low angle, and use the self-locking function of the drive mechanism to lock the photovoltaic main beam. However, under this condition, the resonance causes great damage to the photovoltaic modules, and at the same time causes the top structure of the drive column to be subjected to concentrated force, which can easily cause structural damage.

[0004] Therefore, there is an urgent need to invent a photovoltaic main beam, a photovoltaic support assembly and a photovoltaic system to solve the above problems. Summary of the invention

[0005] In view of the above-mentioned problems existing in the prior art, a photovoltaic main beam, a photovoltaic bracket assembly and a photovoltaic system are provided. By installing a limiting connector at the connection between the main beam body and the non-driving column, and cooperating with the baffle and the limiting rib structure on the bearing seat, when the main beam rotates, the limiting connector fixed on the outer wall of the main beam body rotates at a larger radius on the side farther from the center of the main beam body, and cooperates with the baffle and the limiting rib installed on the bearing seat to limit the rotation angle of the photovoltaic main beam, which can effectively solve the problems in the background technology.

[0006] The specific technical solutions are as follows:

[0007] A photovoltaic support assembly of a photovoltaic system, mainly composed of a photovoltaic main beam, a photovoltaic bearing, and a bearing seat;

[0008] A photovoltaic main beam, the photovoltaic main beam comprising a main beam body and a first limit portion provided on the main beam body, the first limit portion extending axially along the main beam body and protruding outwardly from the main beam body along the radial direction of the main beam body;

[0009] A photovoltaic bearing is formed into an annular structure, a limiting groove cooperating with the first limiting portion is provided on the photovoltaic bearing, the photovoltaic main beam is passed through the inner mounting hole of the photovoltaic bearing and the first limiting portion is passed through the limiting groove;

[0010] A bearing seat is provided with a bearing mounting hole which passes through the bearing seat in its axial direction and the photovoltaic bearing is rotatably arranged in the bearing mounting hole. A second limiting portion is provided at a position adjacent to the bearing mounting hole on the bearing seat. The second limiting portion is configured to cooperate with the first limiting portion to limit the rotation of the photovoltaic bearing within a preset angle when the photovoltaic bearing rotates.

[0011] As a further improvement of the present invention, the first limiting portion and the main beam body are separate structures, and the first limiting portion is formed as a limiting connecting piece connected to the outer peripheral wall of the main beam body.

[0012] As a further improvement of the present invention, the limiting connecting piece is provided with a fitting surface suitable for abutting against the outer peripheral wall of the main beam body, and the limiting connecting piece extends axially along the outer peripheral wall of the main beam body and protrudes from the outer peripheral wall of the main beam body in the radial direction.

[0013] As a further improvement of the present invention, the distance between the far end of the limiting connecting piece away from the main beam body and the center of the main beam body is greater than the distance between any point on the outer peripheral wall of the main beam body and the center of the main beam body.

[0014] As a further improvement of the present invention, the main beam body is set to a circular tube, a rectangular tube or a polygonal tube structure, and the limiting connecting piece is set to a triangular prism structure or a rectangular parallelepiped structure.

[0015] As a further improvement of the present invention, a limiting groove is formed in the inner mounting hole, and the inner mounting hole and the limiting groove are integrally formed to match the outer contour of the main beam body.

[0016] As a further improvement of the present invention, the photovoltaic bearing includes a first bearing member and a second bearing member, both of which are semi-bearing structures, and a coupling member is provided at the connection between the first bearing member and the second bearing member, and the two are combined to form a photovoltaic bearing.

[0017] As a further improvement of the present invention, the first limiting portion includes a first main beam limiting portion and a second main beam limiting portion, the first main beam limiting portion and the second main beam limiting portion are symmetrically formed on the main beam body, the limiting groove includes a first sub-limiting groove and a second sub-limiting groove, the first main beam limiting portion and the second main beam limiting portion are correspondingly arranged in the first sub-limiting groove and the second sub-limiting groove.

[0018] As a further improvement of the present invention, the second limiting portion includes a first bearing seat limiting portion and a second bearing seat limiting portion which are symmetrically arranged. The first bearing seat limiting portion cooperates with the first main beam limiting portion to limit when the photovoltaic bearing rotates to a first preset angle, and the second bearing seat limiting portion cooperates with the second main beam limiting portion to limit when the photovoltaic bearing rotates to a second preset angle.

[0019] As a further improvement of the present invention, the second limiting portion extends radially along the edge of the bearing mounting hole to form a baffle, and the edge of the baffle is formed as a limiting rib matching the contact surface of the first limiting portion.

[0020] As a further improvement of the present invention, the first bearing limiting parts include two, and when the photovoltaic bearing rotates to the first preset angle, the two first bearing limiting parts are respectively abutted against the first main beam limiting part and the second main beam limiting part one by one;

[0021] The second bearing limiting parts include two. When the photovoltaic bearing rotates to the second preset angle, the two second bearing limiting parts respectively abut against the first main beam limiting part and the second main beam limiting part one by one.

[0022] As a further improvement of the present invention, the bearing seat includes a first half seat and a second half seat, the first half seat and the second half seat are arranged at intervals along the axial direction of the photovoltaic main beam, and the photovoltaic bearing is clamped between the first half seat and the second half seat in the axial direction.

[0023] As a further improvement of the present invention, the bearing seat includes a first half seat and a second half seat, one end of the first half seat is pivotally connected to one end of the second half seat, and when the photovoltaic bearing is arranged on the first half seat and the second half seat, the other end of the first half seat is locked and connected to the other end of the second half seat.

[0024] A photovoltaic main beam for a photovoltaic support assembly, the photovoltaic main beam is passed through a bearing seat of the photovoltaic support assembly, and the bearing seat is provided with a second limiting portion, comprising:

[0025] Main beam body;

[0026] A first limiting portion, the first limiting portion extending along the axial direction of the main beam body and protruding outward from the main beam body along the radial direction of the main beam body;

[0027] Wherein, at least a portion of the first limiting portion extends out of the bearing seat in the axial direction to cooperate with the second limiting portion.

[0028] As a further improvement of the present invention, the first limiting portion and the main beam body are separate structures, and the first limiting portion is formed as a limiting connecting piece connected to the outer peripheral wall of the main beam body.

[0029] As a further improvement of the present invention, the limiting connector is provided with a fitting surface suitable for abutting against the outer peripheral wall of the main beam body, and the limiting connector extends axially along the outer peripheral wall of the main beam body and protrudes from the outer peripheral wall of the main beam body in the radial direction.

[0030] A photovoltaic bearing for a photovoltaic support assembly, wherein the photovoltaic support assembly has a photovoltaic main beam, and the photovoltaic main beam is provided with a first limiting portion, characterized in that it includes:

[0031] The photovoltaic bearing forms an annular structure, the outer contour of the photovoltaic bearing is formed in a circle and the inner contour of the photovoltaic bearing defines an inner mounting hole suitable for the photovoltaic main beam to pass through, the inner mounting hole is provided with a limiting groove suitable for the first limiting portion to pass through, wherein the groove wall of the limiting groove is not less than the distance from the center of the photovoltaic bearing in the radial direction from the hole wall of the inner mounting hole to the center of the photovoltaic bearing in the radial direction.

[0032] As a further improvement of the present invention, the photovoltaic bearing includes a first bearing member and a second bearing member, both of which are semi-bearing structures, and a coupling member is provided at the connection between the first bearing member and the second bearing member, and the two are combined to form the photovoltaic bearing.

[0033] A photovoltaic system includes the photovoltaic support assembly of the above-mentioned photovoltaic system, and also includes a driving column, a non-driving column, and a photovoltaic assembly. A driving mechanism is fixedly installed on the top of the driving column, a bearing seat is fixedly connected to the top of the non-driving column, and the photovoltaic assembly is fixedly installed on the top of the photovoltaic main beam.

[0034] The above technical solution has the following advantages or beneficial effects:

[0035] 1. By installing a limiting connector on the main beam body at the top of the non-driving column, in conjunction with the baffle and limiting rib structure on the bearing seat, when the photovoltaic main beam rotates, the baffle and limiting rib installed on the bearing seat are cooperated to limit the rotation angle of the photovoltaic main beam. Through the self-locking function of the driving mechanism on the driving column and the bearing seats with extreme angle limiting and blocking functions installed on multiple non-driving columns, the multiple limiting ribs on multiple bearing seats work together to disperse the wind force to multiple bearing seats and multiple columns, so that the overall photovoltaic system is more evenly stressed, better plays the role of strong wind protection, and improves the structural stability of the overall photovoltaic bracket.

[0036] 2. A bearing seat with a split combined connection, especially a bearing seat with a combined rotating connection structure composed of a first bearing member and a second bearing member, is easier to install bearings and main beams and to replace bearings that have been used for a long time than a bearing seat with an integrated structure commonly seen in the prior art.

[0037] 3. Since the sides of the limit connectors often need to collide with the limit retaining edges during long-term use, it is easy to cause damage to the surface anti-corrosion zinc layer. Compared with the structure of the entire main beam made into a diamond-shaped cross-section, the limit connectors with solid structures can form a reinforcing rib structure with the connection between the photovoltaic main beam and the bearing seat to improve the structural strength of the node. The limit connectors with solid structures have a thicker thickness and greater anti-corrosion redundancy, and there is no problem of anti-corrosion failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The embodiments of the present invention will be described more fully with reference to the attached drawings, which are provided for illustration and description only and are not intended to limit the scope of the present invention.

[0039] Figure 1 A schematic diagram of a photovoltaic main beam, a photovoltaic support assembly and a non-driven column connection structure in a photovoltaic system proposed by the present invention;

[0040] Figure 2 A schematic diagram of the structure of a photovoltaic main beam, a photovoltaic support assembly and a photovoltaic system proposed by the present invention;

[0041] Figure 3 A schematic diagram of the bearing structure proposed by the present invention;

[0042] Figure 4 A schematic diagram of a bearing structure in another embodiment of the present invention;

[0043] Figure 5 It is a schematic diagram of the structure of the present invention;

[0044] Figure 6 This is a schematic diagram of an explosion structure of a photovoltaic main beam in the present invention;

[0045] Figure 7 A schematic diagram of the exploded structure of a photovoltaic support assembly of a photovoltaic system in the present invention;

[0046] Figure 8 It is an exploded structural diagram of a photovoltaic support assembly of a photovoltaic system in the present invention from another perspective;

[0047] Fig. 9 A photovoltaic support assembly for a photovoltaic system in the present invention Figure 8 The main view;

[0048] Fig.10 It is a schematic diagram of the exploded structure of another embodiment of a photovoltaic support assembly of a photovoltaic system in the present invention;

[0049] Fig.11 A schematic diagram of the structure of a photovoltaic support assembly of a photovoltaic system in the present invention;

[0050] Fig.12 It is a schematic structural diagram of another embodiment of a photovoltaic support assembly of a photovoltaic system in the present invention;

[0051] Fig.13 This is a front view of another embodiment of a photovoltaic support assembly of a photovoltaic system in the present invention.

[0052] Fig.14 This is a structural diagram of a photovoltaic support assembly of a photovoltaic system in the invention in a flat state.

[0053] Fig.15 This is a structural diagram of a photovoltaic support assembly of a photovoltaic system in the invention when it is rotated to a first preset angle.

[0054] Fig.16 This is a structural diagram of a photovoltaic support assembly of a photovoltaic system in the invention when it is rotated to a second preset angle.

[0055] Fig.17 This is a design drawing of an upper limit connector for the main beam body of a photovoltaic main beam.

[0056] Fig.18 This is a structural diagram of another embodiment of a photovoltaic support assembly of a photovoltaic system.

[0057] Fig.19 The exploded structure diagram of another embodiment of a photovoltaic support assembly of a photovoltaic system.

[0058] The above-mentioned reference numerals represent: 1, photovoltaic main beam; 10, main beam body; 11, first limiting portion; 111, limiting connector; 1110, screw; 1111, countersunk through hole; 112, fitting surface; 113, first main beam limiting portion; 114, second main beam limiting portion; 2, photovoltaic bearing; 20, inner mounting hole; 21, limiting groove; 211, first sub-limiting groove; 212, second sub-limiting groove; 22, first bearing member; 2 3. Second bearing member; 3. Bearing seat; 30. Bearing mounting hole; 31. Second limiting portion; 310. First bearing seat limiting portion; 311. Second bearing seat limiting portion; 32. Baffle; 33. Limiting rib; 34. First half seat; 35. Second half seat; 36. Connecting ear plate; 37. Pin; 38. Limiting groove; 4. Bearing seat mounting seat; 5. Non-driving column; 6. Driving column; 7. Photovoltaic module; 8. Driving mechanism. DETAILED DESCRIPTION

[0059] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0060] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0061] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0062] A photovoltaic support assembly of a photovoltaic system, mainly composed of a photovoltaic main beam 1, a photovoltaic bearing 2, and a bearing seat 3;

[0063] The photovoltaic main beam 1 includes a main beam body 10 and a first limit portion 11 provided on the main beam body 10. The main beam body 10 and the first limit portion 11 form an integral structure or a split structure. On the cross section of the photovoltaic main beam, the distance between the far end of the first limit portion 11 and the center of the main beam body 10 is greater than the distance between the rest of the main beam body 10 and the center of the main beam body 10.

[0064] The photovoltaic bearing 2 is formed into an annular structure, the photovoltaic bearing 2 is provided with a limiting groove 21 matched with the first limiting portion 11, the photovoltaic main beam 1 is penetrated through the inner mounting hole 20 of the photovoltaic bearing 2, and the first limiting portion 11 is penetrated through the limiting groove 21;

[0065] The bearing seat 3 is provided with a bearing mounting hole 30 which passes through the bearing seat 3 along its axial direction and the photovoltaic bearing 2 is rotatably arranged in the bearing mounting hole 30. A second limiting portion 31 is provided at a position adjacent to the bearing mounting hole 30 of the bearing seat 3. The second limiting portion 31 is configured such that when the photovoltaic bearing 2 rotates, the second limiting portion 31 cooperates with the first limiting portion 11 to limit the rotation of the photovoltaic bearing 2 within a preset angle.

[0066] like Figure 5-Figure 6 As shown, preferably, the first limiting portion 11 and the main beam body 10 are designed as a split structure connected in combination, the first limiting portion 11 is arranged as a limiting connector 111 connected to the outer peripheral wall of the main beam body 10, the limiting connector 111 is provided with a fitting surface 112 matching the outer peripheral wall of the main beam body 10, the limiting connector 111 extends axially along the outer peripheral wall of the main beam body 10, and protrudes from the outer peripheral wall of the main beam body 10 in the radial direction, the distance between the far end of the limiting connector 111 away from the main beam body 10 and the center of the main beam body 10 is greater than the distance between any point on the outer peripheral wall of the main beam body 10 and the center of the main beam body 10.

[0067] More specifically, the main beam body 10 is configured as follows Figure 5 , Fig.11 The circular tube structure shown, the corresponding limiting connector 111 is set as a triangular prism structure, the limiting connector 111 of the triangular prism structure is provided with a fitting surface 112 which can tightly fit the arc surface structure with the outer wall of the hollow circular tube, the limiting connector 111 can also be set as a solid rectangular parallelepiped structure, when the main beam body 10 is set as a circular tube structure, the center of the main beam body 10 is the center of the circle of the circular tube cross section, the limiting connector 111 protrudes radially from the outer peripheral wall of the main beam body 10, so the distance between the far end of the limiting connector 111 away from the main beam body 10 and the center of the main beam body 10 must be greater than the distance between any point on the outer peripheral wall of the main beam body 10 and the center of the main beam body 10.

[0068] Alternatively, the main beam body 10 can also be configured as follows Figure 6 , Fig.12 For the rectangular tube structure shown, the corresponding limiting connector 111 can be set to a triangular prism structure or a rectangular parallelepiped structure or other structures. Optionally, the main beam body 10 can also be set to a polygonal hollow main beam, such as a hexagonal tube, octagonal tube or other common main beams or a main beam body 10 of other cross-sectional structures. The center of the main beam body 10 is the geometric center of its cross section, and the limiting connector 111 is set to a structure that satisfies that the distance between the far end of the limiting connector 111 away from the main beam body 10 and the center of the main beam body 10 is greater than the distance between any point on the outer peripheral wall of the main beam body 10 and the center of the main beam body 10.

[0069] like Fig.17 As shown, taking the commonly seen rectangular tube main beam on the market as an example, the shaded part in the figure is the rectangular tube, the dotted part is the limit connector 111, the center point of the rectangular tube is located at the intersection of the two diagonals, and the longest distance from the center point on the outer surface of the main beam body 10 is the four corners of the outer wall of the rectangular tube main beam. When the main beam body 10 of the rectangular tube structure rotates, the maximum contour formed is Fig.17 The circle formed by taking the midline point as the center and L1 as the radius, when the limiting connector 111 of the triangular prism structure is installed on the main beam body 10, it should be ensured that the fitting surface 112 on the limiting connector 111 is fixedly fitted and connected with the side of the rectangular tube, and the distance between the side of the limiting connector 111 away from the outer wall of the main beam body 10 and the center point of the main beam body 10 (i.e. Fig.17 In the figure, L2) is greater than the distance between the center point of the main beam body 10 and any point on the outer wall of the main beam body 10, that is, L2 is greater than L1. As a preferred solution, L2 is at least 2 mm longer than L1 to ensure that the limiting retaining edge 33 on the bearing seat 3 can better block the limiting connecting piece 111 on the main beam body 10.

[0070] It should be determined that for polygonal hollow main beams, such as common main beams such as hexagonal tubes and octagonal tubes, or main beam bodies 10 of other cross-sectional structures, the selection method of the limiting connectors 111 is similar to that of rectangular tube main beams.

[0071] The limiting groove 21 is formed in the inner mounting hole 20 , and the limiting groove 21 and the inner mounting hole 20 form a structure matching the outer contour of the main beam body 10 .

[0072] like Figure 4 As shown, the photovoltaic bearing 2 includes a first bearing component 22 and a second bearing component 23. The first bearing component 22 and the second bearing component 23 are both designed as semi-bearing structures. A coupling component is provided at the connection between the first bearing component 22 and the second bearing component 23, and the two are combined to form the photovoltaic bearing 2.

[0073] Optionally, both the first bearing component 22 and the second bearing component 23 are provided with protrusions and grooves, and the first bearing component 22 and the second bearing component 23 are connected together by snapping the protrusions and the grooves.

[0074] The first limiting portion 11 includes a first main beam limiting portion 113 and a second main beam limiting portion 114, which are symmetrically formed on the main beam body 10, and the limiting groove 21 includes a first sub-limiting groove 211 and a second sub-limiting groove 212, which are one-to-one correspondingly penetrated through the first sub-limiting groove 211 and the second sub-limiting groove 212.

[0075] The second limiting portion 31 includes a first bearing seat limiting portion 310 and a second bearing seat limiting portion 311 which are symmetrically arranged. The first bearing seat limiting portion 310 cooperates with the first main beam limiting portion 113 to limit when the photovoltaic bearing 2 rotates to a first preset angle, and the second bearing seat limiting portion 311 cooperates with the second main beam limiting portion 114 to limit when the photovoltaic bearing 2 rotates to a second preset angle.

[0076] Optionally, the second limiting portion 31 extends radially along the edge of the bearing mounting hole 30 to form a baffle 32 , and the edge of the baffle 32 is formed as a limiting rib 33 matching the contact surface of the first limiting portion 11 .

[0077] The first bearing seat limiting parts 310 include two. When the photovoltaic bearing 2 rotates to the first preset angle, the two first bearing seat limiting parts 310 abut against the first main beam limiting part 113 and the second main beam limiting part 114 respectively.

[0078] The second bearing seat limiting parts 311 include two. When the photovoltaic bearing 2 rotates to the second preset angle, the two second bearing seat limiting parts 311 are respectively abutted against the first main beam limiting part 113 and the second main beam limiting part 114 one by one.

[0079] like Fig.10 As shown, optionally, the bearing seat 3 includes a first half seat 34 and a second half seat 35, the first half seat 34 and the second half seat 35 are arranged at intervals along the axial direction of the photovoltaic main beam, and the photovoltaic bearing 2 is clamped between the first half seat 34 and the second half seat 35 in the axial direction.

[0080] Or, if Figure 7-9 As shown, one end of the first half seat 34 is pivotally connected to one end of the second half seat 35 . When the photovoltaic bearing 2 is arranged on the first half seat 34 and the second half seat 35 , the other end of the first half seat 34 is locked and connected to the other end of the second half seat 35 .

[0081] A photovoltaic main beam for a photovoltaic support assembly, wherein the photovoltaic main beam 1 is passed through a bearing seat 3 of the photovoltaic support assembly, and a second limiting portion 31 is provided on the bearing seat 3, comprising:

[0082] Main beam body 10;

[0083] A first limiting portion 11, which extends axially along the main beam body 1 and protrudes outward from the main beam body 10 along the radial direction of the main beam body 10;

[0084] At least a portion of the first limiting portion 11 extends out of the bearing seat 3 in the axial direction to cooperate with the second limiting portion 31 .

[0085] As a further improvement of the present invention, the first limiting portion 11 and the main beam body 10 are separate structures, and the first limiting portion 11 is formed as a limiting connecting piece 111 connected to the outer peripheral wall of the main beam body 10.

[0086] As a further improvement of the present invention, the limiting connector 111 is provided with a fitting surface 112 suitable for abutting against the outer peripheral wall of the main beam body 10 , and the limiting connector 111 extends axially along the outer peripheral wall of the main beam body 10 and protrudes from the outer peripheral wall of the main beam body 10 in the radial direction.

[0087] A photovoltaic bearing for a photovoltaic support assembly, the photovoltaic support assembly having a photovoltaic main beam 1, the photovoltaic main beam 1 is provided with a first limiting portion 11, including:

[0088] The photovoltaic bearing 3 forms an annular structure, the outer contour of the photovoltaic bearing 3 is formed in a circle and the inner contour of the photovoltaic bearing 2 defines an inner mounting hole 20 suitable for the photovoltaic main beam to pass through, and the inner mounting hole 20 is provided with a limiting groove 21 suitable for the first limiting portion 11 to pass through, wherein the groove wall of the limiting groove 21 is at a distance from the center of the photovoltaic bearing 2 in the radial direction not less than the distance from the hole wall of the inner mounting hole 20 to the center of the photovoltaic bearing 2 in the radial direction.

[0089] As a further improvement of the present invention, the photovoltaic bearing 2 includes a first bearing member 22 and a second bearing member 23. The first bearing member 22 and the second bearing member 23 are both semi-bearing structures. A coupling member is provided at the connection between the first bearing member 22 and the second bearing member 23, and the two are combined to form a photovoltaic bearing.

[0090] like Figure 1-Figure 2 As shown, a photovoltaic system includes the photovoltaic support assembly of the above-mentioned photovoltaic system, and also a driving column 6, a non-driving column 5, and a photovoltaic assembly 7. A driving mechanism 8 is fixedly installed on the top of the driving column 6, a bearing seat 3 is fixedly connected to the top of the non-driving column 5, and the photovoltaic assembly 7 is fixedly installed on the top of the photovoltaic main beam 1.

[0091] Optionally, the bearing seat 3 is fixedly connected to the top of the non-driving column 5 through a bearing seat mounting seat 4.

[0092] The following is a detailed description based on specific application scenarios.

[0093] Example 1

[0094] like Figure 7-Figure 9As shown, a photovoltaic support assembly of a photovoltaic system is mainly composed of a photovoltaic main beam 1, a photovoltaic bearing 2, and a bearing seat 3. The photovoltaic main beam 1 includes a main beam body 10 and a first limiting portion 11 fixedly connected to the main beam body 10. The first limiting portion 11 extends along the axial direction of the main beam body 10 and protrudes outward from the main beam body 10 in the radial direction. The photovoltaic bearing 2 is configured as a ring-mounted structure, which can be integrally formed or designed as a multi-stage connection structure. An inner mounting hole 20 is provided inside the photovoltaic bearing 2, and a limiting groove 21 cooperating with the first limiting portion 11 is provided inside the photovoltaic bearing 2. The photovoltaic main beam 1 passes through the inner mounting hole 20 of the photovoltaic bearing 2. The first limiting portion 11 is passed through the limiting groove 21, that is, the inner mounting hole 20 inside the photovoltaic bearing 2 has the same shape as the outer contour of the photovoltaic main beam 1, and the limiting groove 21 has the same shape contour as the first limiting portion 11. The bearing seat 3 is used to support and install the photovoltaic bearing 2. The bearing seat 3 is provided with a bearing mounting hole 30 for installing the photovoltaic bearing 2 which passes through in the axial direction. The photovoltaic bearing 2 can rotate relative to the bearing seat 3. A second limiting portion 31 is provided on the bearing seat 3 near the bearing mounting hole 30. When the photovoltaic bearing 2 rotates, the second limiting portion 31 cooperates with the first limiting portion 11 to limit the rotation of the photovoltaic bearing 2 within a preset angle range.

[0095] In some optional embodiments, the preset angle range can be set to a common rotation angle range of a photovoltaic tracking bracket commonly used in the prior art, such as plus or minus 60°, plus or minus 45°, etc.

[0096] In some optional embodiments, such as Figure 5-6 As shown, the photovoltaic main beam 1 is configured as a first limiting portion 11 and a main beam body 10 of a split type, the first limiting portion 11 includes a first main beam limiting portion 113 and a second main beam limiting portion 114 symmetrically arranged, the first limiting portion 11 is specifically configured as a limiting connector 111 connected to the main beam body 10, the limiting connector 111 is provided with a fitting surface 112 for abutting against the outer peripheral wall of the main beam body 10, the limiting connector 111 is fixedly connected to the main beam body 10 by a screw 1110, preferably, a countersunk through hole 1111 for installing the screw 1110 is opened at the top of the limiting connector 111, during installation, the fitting surface 112 on the limiting connector 111 is fitted with the outer wall of the main beam body 10, and the limiting connector 111 is fixedly connected to the main beam body 10 by the screw 1110 penetrating the countersunk through hole 1111 to form the photovoltaic main beam 1.

[0097] like Figure 5As shown, further, when the main beam body 10 is set as a hollow circular tube, the limiting connector 111 can be set as a triangular prism structure or a rectangular parallelepiped structure. When the main beam body 10 is set as a hollow circular tube structure, the center of the main beam body 10 is the center of the cross section of the hollow circular tube. The limiting connector 111 protrudes radially from the outer peripheral wall of the main beam body 10. Therefore, the distance between the far end of the limiting connector 111 away from the main beam body 10 and the center of the main beam body 10 must be greater than the distance between any point on the outer peripheral wall of the main beam body 10 and the center of the main beam body 10.

[0098] like Figure 6 As shown, when the main beam body 10 is set as a hollow rectangular tube, it should be ensured that the distance between the far end position of the limiting connector 111 away from the main beam body 10 and the center of the main beam body 10 is greater than the distance between any point on the outer peripheral wall of the main beam body and the center of the main beam body 10, thereby ensuring that when the photovoltaic main beam 1 rotates, the annular range formed by the limiting connector 111 around the center of the main beam body 10 is greater than the annular range formed by the outer peripheral wall contour of the main beam body 10, ensuring that the limiting connector 111 can abut against the second limiting portion 31 within a preset angle range to form a limiting mechanism. Similarly, for the limiting connector 111 on the hollow rectangular tube, it can be set to a triangular prism structure or a rectangular parallelepiped structure, or it can be set to other structures that meet the above-mentioned adjustment.

[0099] like Figure 18-19 As shown, in some optional embodiments, a limiting groove 38 is opened on the top of the bearing seat 3, and the first limiting portion 11 is configured to be fixedly connected to the top of the main beam and installed in a horn-shaped structure inside the limiting groove 38. The first limiting portion 11 is fixedly connected to the outer wall of the main beam body 10 and extends out of the limiting groove 38. At this time, the second limiting portion 31 is configured as a groove wall on the limiting groove 38 in the axial direction of the bearing seat 3. When the photovoltaic main beam 1 rotates to the extreme position, the first limiting portion 11 of the horn-shaped structure contacts the groove wall to limit the photovoltaic main beam 1 from continuing to rotate.

[0100] Similarly, for polygonal hollow main beams, such as hexagonal tubes, octagonal tubes and other common main beams or main beam bodies 10 with other cross-sectional structures, the selection method of the limiting connector 111 is similar to that of the rectangular tube main beam. The same limiting effect can be achieved through the above structure, which will not be repeated here.

[0101] In addition, as a preferred embodiment, the limiting connector 111 preferably adopts a solid structure. Since the side of the limiting connector 111 often needs to collide with the second limiting portion 31 during long-term use, it is easy to cause damage to the surface anti-corrosion zinc layer. The limiting connector 111 with a solid structure can form a reinforcing rib structure at the connection with the main beam body 10 and the bearing seat 3, thereby improving the structural strength of the node at this location. At the same time, the anti-corrosion redundancy is large, and there is no problem of anti-corrosion failure.

[0102] In some optional embodiments, the photovoltaic bearing 2 is configured as follows: Figure 3 As shown in the one-piece molded structure, for the photovoltaic bearing 2 of the one-piece molded structure, during installation, the photovoltaic bearing 2 is sleeved on the photovoltaic main beam 1 , and then the photovoltaic bearing 2 is installed on the bearing seat 3 .

[0103] like Figure 4 , Fig.10 As shown, in some optional embodiments, the photovoltaic bearing 2 includes a first bearing member 22 and a second bearing member 23. The first bearing member 22 and the second bearing member 23 are both designed as semi-bearing structures. The first bearing member 22 and the second bearing member 23 are combined to form the photovoltaic bearing 2 by being hinged in an up and down rotation or in a left and right buckled manner.

[0104] In some optional embodiments, the first limiting portion 11 is preferably configured as a first main beam limiting portion 113 and a second main beam limiting portion 114 that are symmetrical about the main beam body 10 .

[0105] In some optional embodiments, the second limiting portion 31 is configured as a symmetrically arranged first bearing limiting portion 310 and a second bearing limiting portion 311. When the photovoltaic main beam 1 and the photovoltaic bearing 2 rotate to a first preset angle, the first bearing limiting portion 310 abuts and cooperates with the first main beam limiting portion 113 for limiting. When the photovoltaic main beam 1 and the photovoltaic bearing 2 rotate to the first preset angle, the second bearing limiting portion 311 abuts and cooperates with the second main beam limiting portion 114 for limiting. The first preset angle and the second preset angle are the limit angles of clockwise and counterclockwise rotation of the photovoltaic tracking bracket.

[0106] Furthermore, if Figure 8 , Fig. 9 As shown, the second limiting portion 31 extends radially along the edge of the bearing mounting hole 30 to form a baffle 32 , and the edge of the baffle 32 is formed as a limiting rib 33 matching the contact surface of the first limiting portion 11 .

[0107] More specifically, the contour structure of the limiting retaining edge 33 is determined by the following method:

[0108] S1, rotate the photovoltaic main beam 1 to a horizontal position and determine the center point of the photovoltaic main beam 1;

[0109] S2, with the center point as the center of the circle, rotate the photovoltaic main beam clockwise to the first limit angle of the preset angle;

[0110] S3, according to the relative position of the second limiting portion 31 and the first limiting portion 11 in step S2, determining a partial contour of the limiting rib 33 where the second limiting portion 31 abuts against the first limiting portion 11;

[0111] S4, with the center point as the center of the circle, rotate the photovoltaic main beam 1 counterclockwise to a second limit angle of the preset angle;

[0112] S5, according to the relative position of the second limiting portion 31 and the first limiting portion 11 in step S4, determining a partial contour of the limiting rib 33 where the second limiting portion 31 abuts against the first limiting portion 11;

[0113] S6, connecting the partial contours formed in steps S3 and S5 to form a limiting retaining edge 33.

[0114] In some optional embodiments, the bearing seat 3 is designed as a two-section split structure, the bearing seat 3 includes a first half seat 34 and a second half seat 35, the first half seat 34 and the second half seat 35 are arranged at intervals along the axial direction of the photovoltaic main beam 1, and the photovoltaic bearing 2 is sandwiched between the first half seat 34 and the second half seat 35 in the axial direction. Fig.10 As shown, the first half seat 34 and the second half seat 35 are fixedly connected and combined to form the bearing seat 3.

[0115] In some optional embodiments, such as Figure 11-13 As shown, one end of the first half seat 34 is pivotally connected to one end of the second half seat 35 . When the photovoltaic bearing 2 is installed on the first half seat 34 and the second half seat 35 , the other end of the first half seat 34 is locked and connected to the other end of the second half seat 35 .

[0116] More specifically, if Figure 8-Figure 9 As shown, connecting ear plates 36 are staggeredly arranged at the connection between the first bearing component 22 and the second bearing component 23, and the connecting ear plates 36 are connected by pins 37, so that the first bearing component 22 and the second bearing component 23 are combined to form a photovoltaic bearing 2.

[0117] In addition, since the bearings used in photovoltaic systems in the prior art are mostly made of ultra-high molecular weight polyethylene or other non-metallic materials with self-lubricating function, although their self-lubricating function and cost advantages are obvious, their service life cannot meet the 25-year service life requirement and need to be replaced and maintained. The bearing seat 3 with a rotating connection structure composed of the first bearing component 22 and the second bearing component 23 mentioned above is more convenient for replacing photovoltaic bearings 2 that are severely worn after long-term use, compared with the bearing seat with an integrated structure commonly seen in the prior art.

[0118] Example 2

[0119] A photovoltaic main beam for a photovoltaic support assembly, wherein the photovoltaic main beam 1 is passed through a bearing seat 3 of the photovoltaic support assembly, and a second limiting portion 31 is provided on the bearing seat 3. The photovoltaic main beam is composed of a main beam body 10 and a first limiting portion 11. The first limiting portion 11 extends axially along the main beam body 10 and protrudes outward from the main beam body 10 along the radial direction of the main beam body 10. The main beam body 10 and the first limiting portion 11 are an integral structure or a split structure. On the cross section of the photovoltaic main beam 10, the distance between the first limiting portion 11 and the center of the main beam body 10 is greater than the distance from the rest of the main beam body 10 to the center of the main beam body 10.

[0120] Furthermore, at least a portion of the first limiting portion 11 extends out of the bearing seat 3 in the axial direction to cooperate with the second limiting portion 31 .

[0121] In some optional embodiments, the first limiting portion 11 and the main beam body 10 are designed as a separate structure, and the first limiting portion 11 is formed as a limiting connecting piece 111 connected to the outer peripheral wall of the main beam body 10.

[0122] As a further improvement of the present invention, the limiting connector 111 is provided with a fitting surface 112 suitable for abutting against the outer peripheral wall of the main beam body 10 , and the limiting connector 111 extends axially along the outer peripheral wall of the main beam body 10 and protrudes from the outer peripheral wall of the main beam body 10 in the radial direction.

[0123] When the cross section of the main beam body 10 is designed as follows Figure 3 or Figure 4 The same function can be achieved when the shape of the internal mounting hole 20 of the bearing 2 is shown. However, compared with the solution in which the limiting connector 111 is fixedly connected on both sides of the main beam body 10 and the limiting connector 111 partially extends out of the bearing seat 3, the above solution requires the entire main beam to be processed into a structure similar to a diamond cross-section. Compared with the main beam body 10 of the circular tube and rectangular tube structure, the processing cost and raw material cost are higher. The solution of the present application only needs to install the limiting connector 111 on the main beam body 10 part at the top of the non-driving column 5, and the cost advantage is obvious.

[0124] When the photovoltaic main beam 1 rotates, the second limiting portion 31 installed on the bearing seat 3 is used to limit the rotation angle of the main beam body 10. The self-locking function of the driving mechanism 8 on the driving column 6 is used in conjunction with the bearing seats 3 with extreme angle limiting and blocking function installed on multiple non-driving columns 5. The multiple second limiting portions 31 on the multiple bearing seats 3 work together with the first limiting portion 11 on the main beam body 10 to disperse the wind force to the multiple bearing seats 3 and multiple columns, so that the overall photovoltaic system is more evenly stressed, better plays the role of strong wind protection, and improves the structural stability of the overall photovoltaic bracket.

[0125] Example 3

[0126] A photovoltaic bearing for a photovoltaic bracket assembly, the photovoltaic bracket assembly having a photovoltaic main beam 1, the photovoltaic main beam 1 is provided with a first limiting portion 11, the photovoltaic bearing 2 is designed as an annular structure, the outer contour of the photovoltaic bearing 2 is formed into a circle and the inner contour of the photovoltaic bearing 2 is set to be an inner mounting hole 20 suitable for the photovoltaic main beam 1 to pass through, the inner mounting hole 20 is provided with a limiting groove 21 suitable for the first limiting portion 11 to pass through, wherein the distance between the groove wall of the limiting groove 21 and the center of the photovoltaic bearing in the radial direction is not less than the distance between the hole wall of the inner mounting hole 20 and the center of the photovoltaic bearing in the radial direction;

[0127] The photovoltaic bearing 2 forms an annular structure as a whole, the outer contour of the photovoltaic bearing 2 is formed in a circle and the inner contour of the photovoltaic bearing 2 defines an inner mounting hole 20 suitable for the photovoltaic main beam 1 to pass through, and the inner mounting hole 20 is provided with a limiting groove 21 suitable for the limiting connector 111 to pass through, wherein the groove wall of the limiting groove 21 is at a distance from the center of the photovoltaic bearing 2 in the radial direction not less than the distance from the hole wall of the inner mounting hole 20 to the center of the photovoltaic bearing 2 in the radial direction.

[0128] In some optional embodiments, such as Figure 7-Figure 9 As shown, the photovoltaic bearing 2 is an integrated structure.

[0129] In some other optional embodiments, Fig.10 As shown, the photovoltaic bearing 2 includes a first bearing member 22 and a second bearing member 23. Both the first bearing member 22 and the second bearing member 23 are semi-bearing structures. The first bearing member 22 and the second bearing member 23 are snap-connected at the connection to form a photovoltaic bearing.

[0130] Example 4

[0131] A photovoltaic system includes the photovoltaic support assembly of the above-mentioned photovoltaic system, and also includes a driving column 6, a non-driving column 5, and a photovoltaic assembly 7. A driving mechanism 8 is fixedly installed on the top of the driving column 6, a bearing seat 3 is fixedly connected to the top of the non-driving column 5, and the photovoltaic assembly 7 is fixedly installed on the top of the photovoltaic main beam 1.

[0132] In some optional embodiments, the driving mechanism 8 is preferably configured as a worm gear reducer with a self-locking function, and the photovoltaic assembly 7 is fixedly installed on the photovoltaic main beam 1 through purlins or other structural connectors. The driving mechanism 8 generates power to drive the photovoltaic main beam 1 installed on the top of the driving column 6 to rotate, and drives the adjacent photovoltaic main beam 1 and the photovoltaic assembly 7 on the photovoltaic main beam 1 to rotate to achieve tracking of the solar radiation angle, thereby improving the power generation efficiency of the photovoltaic assembly 15.

[0133] like Fig.11 and Fig.13As shown, taking the photovoltaic main beam 1 with a circular tube structure as an example, when the photovoltaic component 7 is in a flat 0° state, the limit connector 111 is located on the left and right sides of the circular tube main beam, and the bearing seat 3 is fixedly installed on the top of the non-driving column 5 through the bearing seat mounting seat 4. The limit connector 111 is fixedly connected to the main beam body 10. When the driving mechanism 8 drives the photovoltaic main beam 1 to rotate, the limit connector 111 fixedly connected to the photovoltaic main beam 1 rotates synchronously. In the prior art, the rotation angle range parameters of photovoltaic systems installed in different latitudes are not the same. The limit retaining edge 33 is used to cooperate with the limit connector 111 to limit the rotation of the photovoltaic main beam 1 within a certain angle range. The certain angle range here refers to the rotation angle range of the photovoltaic system, such as the common positive and negative 60°, positive and negative 45°, etc. in the prior art. The angles of the baffle 32 and the limit retaining edge 33 relative to the photovoltaic main beam 1 at a horizontal 0° can be designed according to actual working conditions.

[0134] like Fig.15 As shown, the photovoltaic system rotates counterclockwise. Fig.15 It is a state diagram when the whole photovoltaic system rotates to the counterclockwise angle limit position. At this time, the side of the limit connector 111 contacts the limit ribs 33 on the first half seat 34 and the second half seat 35. Since the contact surface formed at the connection between the limit connector 111 and the limit ribs 33 coincides with the limit ribs 33, the contact area between the side of the limit connector 111 and the limit ribs 33 is increased. In addition, since baffles 32 and limit ribs 33 are provided on the front and rear side surfaces of the first half seat 34 and the second half seat 35, at the top of a single non-driving column 5, the limit connector 111 and the limit ribs 33 form four contact limit surface structures, which, in conjunction with the self-locking function of the worm gear reducer on the driving column 6, can effectively improve the supporting force of the photovoltaic module 7 at the extreme angle, reduce the damage to the photovoltaic module 7 and the photovoltaic bracket under strong wind conditions, and improve the stability and wind resistance of the overall structure.

[0135] Similarly, if Fig.16 As shown, the photovoltaic system rotates clockwise. Fig.16 It is a state diagram when the whole photovoltaic system rotates to the clockwise angle limit position. At this time, the other side of the limit connector 111 is in contact with the limit ribs 33 on the first half seat 34 and the second half seat 35. At the top of the single non-driving column 5, the limit connector 111 and the limit ribs 33 form a contact limit surface structure, which effectively improves the supporting force of the photovoltaic component 7 at the extreme angle, reduces the damage to the photovoltaic component 7 and the photovoltaic bracket under strong wind conditions, and improves the stability and wind resistance of the overall structure.

[0136] In summary, from the perspective of the overall photovoltaic system, for example, a single-row photovoltaic system composed of multiple non-driving columns 5 and one driving column 6, through the self-locking function of the driving mechanism 8 on the driving column 6, the bearing seats 3 with extreme angle limiting and blocking functions installed on the multiple non-driving columns 5, and the photovoltaic main beam 1, the multiple limiting retaining edges 33 on the multiple bearing seats 3 work together to disperse the wind force to the multiple bearing seats 3 and the multiple columns, so that the overall photovoltaic system is more evenly stressed, better plays the role of strong wind protection, and improves the structural stability of the overall photovoltaic bracket.

[0137] In addition, when the cross section of the main beam body 10 is designed as follows Figure 3 or Figure 4 The same function can be achieved when the shape of the internal mounting hole 20 of the bearing 2 is shown. However, compared with the solution in which the limiting connector 111 is fixedly connected on both sides of the main beam body 10 and the limiting connector 111 partially extends out of the bearing seat 3, the above solution requires the entire main beam to be processed into a structure similar to a diamond cross-section. Compared with the main beam body 10 with a circular tube structure, the processing cost and raw material cost are higher. The solution of the present application only needs to install the limiting connector 111 on the main beam body 10 part at the top of the non-driving column 5, and the cost advantage is obvious. Since the side of the limiting connector 111 often needs to collide with the limiting retaining edge 33 during long-term use, it is easy to cause damage to the surface anti-corrosion zinc layer. Compared with the whole main beam made into a structure similar to a diamond cross-section, the limiting connector 111 with a solid structure can form a reinforcing rib structure with the connection between the photovoltaic main beam 1 and the bearing seat 3 to improve the structural strength of the node at this location. The limiting connector 111 with a solid structure has a large anti-corrosion redundancy due to its thick thickness and large anti-corrosion redundancy, and there is no problem of anti-corrosion failure.

[0138] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A photovoltaic support assembly for a photovoltaic system, characterized in that: include: A photovoltaic main beam, the photovoltaic main beam comprising a main beam body and a first limit portion provided on the main beam body, the main beam body and the first limit portion forming a split structure, and in a cross section of the photovoltaic main beam, the distance between the first limit portion and the center of the main beam body is greater than the distance between the remaining positions of the photovoltaic main beam and the center of the main beam body; The first limiting portion is formed as a limiting connecting piece connected to the outer peripheral wall of the main beam body, wherein the limiting connecting piece extends axially along the main beam body and protrudes outward from the outer peripheral wall of the main beam body along the radial direction of the main beam body; A photovoltaic bearing, wherein the photovoltaic bearing is formed into an annular structure, the photovoltaic bearing is provided with a limiting groove matched with the first limiting portion, the photovoltaic main beam is passed through the inner mounting hole of the photovoltaic bearing and the first limiting portion is passed through the limiting groove; A bearing seat, wherein the bearing seat is provided with a bearing mounting hole which passes through the bearing seat in its axial direction and the photovoltaic bearing is rotatably arranged in the bearing mounting hole, and a second limiting portion is provided at a position of the bearing seat adjacent to the bearing mounting hole, and the second limiting portion is configured such that when the photovoltaic bearing rotates, the second limiting portion cooperates with the limiting connector to limit the rotation of the photovoltaic bearing within a preset angle.

2. The photovoltaic support assembly of the photovoltaic system according to claim 1, characterized in that: In the cross section of the photovoltaic main beam, the distance between the far end of the limiting connector away from the main beam body and the center of the main beam body is greater than the distance between any point on the outer peripheral wall of the main beam body and the center of the main beam body.

3. The photovoltaic support assembly of the photovoltaic system according to claim 2, characterized in that: The main beam body is formed into a circular tube, a rectangular tube or a polygonal tube structure, and the limiting connecting piece is formed into a triangular prism structure or a rectangular parallelepiped structure.

4. The photovoltaic support assembly of the photovoltaic system according to claim 2, characterized in that: The limiting connecting member includes a first main beam limiting portion and a second main beam limiting portion, and the first main beam limiting portion and the second main beam limiting portion are symmetrically arranged on the main beam body.

5. The photovoltaic support assembly of the photovoltaic system according to claim 4, characterized in that: The limiting groove is formed in the inner mounting hole, and the overall shape of the inner mounting hole and the limiting groove matches the outer contour of the photovoltaic main beam.

6. The photovoltaic support assembly of the photovoltaic system according to claim 5, characterized in that: The limiting groove includes a first sub-limiting groove and a second sub-limiting groove, and the first main beam limiting portion and the second main beam limiting portion are respectively arranged through the first sub-limiting groove and the second sub-limiting groove.

7. The photovoltaic support assembly of the photovoltaic system according to claim 1, characterized in that: The photovoltaic bearing is formed as an integrated annular structure.

8. The photovoltaic support assembly of the photovoltaic system according to claim 1, characterized in that: The photovoltaic bearing comprises a first bearing component and a second bearing component. Both the first bearing component and the second bearing component are semi-bearing structures. A coupling component is provided at the connection between the first bearing component and the second bearing component, and the two components are combined to form the photovoltaic bearing.

9. The photovoltaic support assembly of the photovoltaic system according to claim 1, characterized in that: The second limiting portion includes a first bearing seat limiting portion and a second bearing seat limiting portion arranged along the circumferential edge of the bearing mounting hole, the first bearing seat limiting portion cooperates with the limiting connection piece to limit when the photovoltaic bearing rotates to a first preset angle, and the second bearing seat limiting portion cooperates with the limiting connection piece to limit when the photovoltaic bearing rotates to a second preset angle.

10. The photovoltaic support assembly of the photovoltaic system according to claim 9, characterized in that: The first bearing seat limiting portion and the second bearing seat limiting portion respectively extend in the radial direction along the edge of the bearing mounting hole to form a baffle, and the edge of the baffle is formed as a limiting retaining edge matching the contact surface of the limiting connector.

11. The photovoltaic support assembly of the photovoltaic system according to claim 10, characterized in that: The limiting connecting member includes a first main beam limiting portion and a second main beam limiting portion, wherein the first main beam limiting portion and the second main beam limiting portion are symmetrically formed on the main beam body. The first shaft seat limiting parts include two, and when the photovoltaic bearing rotates to the first preset angle, the two first bearing seat limiting parts are respectively abutted against the first main beam limiting part and the second main beam limiting part one by one; The second bearing seat limiting parts include two. When the photovoltaic bearing rotates to the second preset angle, the two second bearing seat limiting parts are respectively abutted against the first main beam limiting part and the second main beam limiting part.

12. The photovoltaic support assembly of the photovoltaic system according to claim 1, characterized in that: The bearing seat includes a first half seat and a second half seat, the first half seat and the second half seat are arranged at intervals along the axial direction of the photovoltaic main beam, and the photovoltaic bearing is sandwiched between the first half seat and the second half seat in the axial direction.

13. The photovoltaic support assembly of the photovoltaic system according to claim 1, characterized in that: The bearing seat includes a first half seat and a second half seat, one end of the first half seat is pivotally connected to one end of the second half seat, and when the photovoltaic bearing is arranged on the first half seat and the second half seat, the other end of the first half seat is locked and connected to the other end of the second half seat.

14. A photovoltaic main beam for a photovoltaic support assembly, wherein the photovoltaic main beam is passed through a bearing seat of the photovoltaic support assembly, and the bearing seat is provided with a second limiting portion, characterized in that: include: Main beam body; A first limiting portion is provided on the main beam body, the main beam body and the first limiting portion are separate structures, and on the cross section of the photovoltaic main beam, the distance between the first limiting portion and the center of the main beam body is greater than the distance between the rest of the main beam body and the center of the main beam body; The first limiting portion is formed as a limiting connecting piece connected to the outer peripheral wall of the main beam body, wherein the first limiting portion extends axially along the main beam body and protrudes outward from the main beam body along the radial direction of the main beam body, wherein at least a portion of the first limiting portion extends out of the bearing seat along the axial direction to cooperate with the second limiting portion.

15. The photovoltaic main beam for a photovoltaic support assembly according to claim 14, characterized in that: The position-limiting connecting piece is provided with a fitting surface suitable for abutting against the outer peripheral wall of the main beam body. The position-limiting connecting piece extends axially along the outer peripheral wall of the main beam body and protrudes from the outer peripheral wall of the main beam body in a radial direction.

16. A photovoltaic bearing for a photovoltaic support assembly, the photovoltaic support assembly having a photovoltaic main beam as claimed in any one of claims 14 to 15, the photovoltaic main beam being provided with a limit connector, characterized in that: include: The photovoltaic bearing is formed into an annular structure in one piece or in parts, the outer contour of the photovoltaic bearing is formed into a circle and the inner contour of the photovoltaic bearing defines an inner mounting hole suitable for the photovoltaic main beam to pass through, the inner mounting hole is provided with a limiting groove suitable for the limiting connector to pass through, wherein the distance between the groove wall of the limiting groove and the center of the photovoltaic bearing in the radial direction is not less than the distance between the hole wall of the inner mounting hole and the center of the photovoltaic bearing in the radial direction.

17. The photovoltaic bearing for a photovoltaic support assembly according to claim 16, characterized in that: The photovoltaic bearing comprises a first bearing component and a second bearing component. Both the first bearing component and the second bearing component are semi-bearing structures. A coupling component is provided at the connection between the first bearing component and the second bearing component, and the two components are combined to form the photovoltaic bearing.

18. A photovoltaic system, characterized in that: include: The photovoltaic support assembly of the photovoltaic system according to any one of claims 1 to 13 further includes a driving column, a non-driving column, and a photovoltaic assembly, wherein a driving mechanism is fixedly installed on the top of the driving column, the bearing seat is fixedly connected to the top of the non-driving column, and the photovoltaic assembly is fixedly installed on the top of the photovoltaic main beam.

Images