Rotating bearing for solar power generation mounting system and solar power generation mounting system

Abstract

Provided are a rotary bearing for a solar power generation stand and a solar power generation stand that can prevent friction and locking between a cable and a bearing base. [Solution] The rotating bearing for a solar power generation mounting frame includes a bearing base 1, a bearing core 2, and a cable sheath 3, the bearing base is provided with a circular through-hole, two bearing cores are movably mounted within the circular through-hole, a first mounting groove is provided on the side portion of the bearing core, the two first mounting grooves are surrounded to form a second through-hole, the second through-hole is suitable for mounting a main beam 4, the cable sheath is detachably mounted on the bearing core, a mounting chamber is provided in the cable sheath, the mounting chamber is suitable for mounting a cable, in this invention, when the bearing core rotates relative to the bearing base, the cable sheath can rotate together with the bearing core in conjunction with the cable.

Description

[Technical Field]

[0001] The present invention relates to the technical field of photovoltaic power generation equipment, and more particularly to a rotary bearing for a photovoltaic power generation mounting system and a photovoltaic power generation mounting system. [Background technology]

[0002] A solar power generation facility is a facility that converts solar energy into direct current electricity using the photovoltaic effect of photovoltaic semiconductor materials.

[0003] Currently, in the mounting frames for solar power generation equipment, the automatic tracking method can improve power generation compared to the fixed method. In the automatic tracking method, the solar power generation module is attached to the cross beam of the solar power generation frame, and the cross beam is supported by a rotary bearing via a pillar, and the deviation of the cross beam is controlled within an allowable range.

[0004] In conventional technology, when laying a DC cable for a solar power generation facility, it usually needs to pass through a bearing. The cable and cross beam rotate synchronously, but the bearing base remains stationary, which can cause friction or jamming between the cable and the bearing base during automatic tracking operation. Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE INVENTION In view of the above, the present invention provides a rotary bearing for a solar power generation mounting system and a solar power generation mounting system to solve the problem of friction and locking between the cable and the bearing base of the rotary bearing in the prior art. [Means for solving the problem]

[0006] In a first aspect, the present invention provides a rotary bearing for a solar photovoltaic mounting frame, comprising: a bearing base, a bearing core, and a cable sheath, wherein the bearing base is provided with a circular through-hole, two bearing cores are movably mounted in the circular through-hole, first mounting grooves are provided on the side portions of the bearing core, and the two first mounting grooves surround each other to form a second through-hole, the second through-hole is suitable for mounting a main beam, the cable sheath is detachably mounted on the bearing core, and a mounting chamber is provided in the cable sheath, the mounting chamber is suitable for mounting a cable.

[0007] As for beneficial effects, the present invention has a cable sheath detachably attached to the bearing core, and the cable is attached within the mounting chamber of the cable sheath. When the bearing core rotates relative to the bearing base, the cable sheath can rotate together with the bearing core in conjunction with the cable, thereby avoiding friction or jamming between the cable and the bearing base.

[0008] In one alternative embodiment, the cable sheath includes a base and a cover plate, the base being detachably connected to the bearing core, the base being provided with a second mounting groove, the second mounting groove being suitable for mounting the cable, the cover plate being movably connected to the base, and a mounting chamber being enclosed between the cover plate and the second mounting groove.

[0009] In terms of beneficial effects, the present invention adopts a structure in which the cover plate is movably connected to the base, making it easy to attach and detach the cable, and the mounting chamber enclosed between the cover plate and the second mounting groove serves to protect the cable and avoids damage to the cable due to friction between the cable and the bearing base.

[0010] In one alternative embodiment, one side of the cover plate is movably connected to one side of the second mounting groove, an engagement groove or engagement portion is provided on the other side of the cover plate, and an engagement portion or engagement groove is correspondingly provided on the other side of the second mounting groove, and the engagement groove and the engagement portion engage with each other.

[0011] In terms of beneficial effects, the present invention employs a form in which the cover plate and the mounting groove are engaged with each other through an engagement groove and an engagement portion, which has the advantages of a simple structure, easy attachment and detachment, and stable engagement.

[0012] In one alternative embodiment, a mounting hole is provided in the bearing core, a mounting portion is provided at the bottom of the base, there is an appropriate gap between the bottom of the base and the outer wall of the bearing base, and the mounting portion is removably attached within the mounting hole.

[0013] As a beneficial effect, the present invention has an appropriate gap between the bottom of the base and the outer wall of the bearing base, so that when the bearing core rotates in the bearing base, the base can rotate synchronously with the bearing core in conjunction with the cable, thereby avoiding friction or jamming between the cable and the bearing base.

[0014] In one alternative embodiment, the mounting portion includes two bumps spaced apart from each other, with a recessed groove between the two bumps, and the bumps and the mounting hole engage with each other.

[0015] As for beneficial effects, the present invention provides two bumps spaced apart on the mounting portion, which allows the two bumps to engage with the mounting hole to a limited extent when the mounting portion is installed in the mounting hole, making the installation of the base on the bearing core more stable and facilitating installation and removal.

[0016] In one alternative embodiment, the first mounting groove is rectangular, with grooves provided at the corners of the first mounting groove.

[0017] As for the beneficial effect, the present invention provides grooves at the corners of the first mounting groove, which can reduce friction between the main beam and the corners of the first mounting groove when the main beam is attached or detached into the second through hole.

[0018] In one alternative embodiment, the bearing core is provided with a fixing member, which is adapted to be fixedly connected to the main beam.

[0019] As a beneficial effect, the present invention provides a fixing member on the bearing core, which facilitates a fixed connection between the main beam and the bearing core.

[0020] In one alternative embodiment, the bearing core is provided with limiting portions at both edges thereof, and the limiting portions abut against the bearing bases.

[0021] As a beneficial effect, the present invention provides limiting portions on both edges of the bearing core, which abut against the bearing base, thereby allowing the bearing core to be stably restricted and attached within the bearing base.

[0022] In one alternative embodiment, the bearing base has two openings in the axial direction of the circular through hole, and the bearing base has two mounting screw holes in the radial direction of the circular through hole, the openings communicating with the mounting screw holes, and the mounting screw holes are suitable for connection to the bearing support member.

[0023] As a beneficial effect, the present invention provides an aperture in the bearing base, which makes it easier to install the bolt into the mounting screw hole.

[0024] In a second aspect, the present invention further provides a solar mounting frame, including a rotary bearing for the above solar mounting frame, a support base, and a mounting frame, wherein the support base is suitable for being fixed to the ground, the bearing base is fixed to the support base, a main beam is provided on the mounting frame, the main beam is mounted in the second through-hole, and the mounting frame is suitable for mounting a solar module.

[0025] In the present invention, the solar power generating frame adopts the rotary bearing for the solar power generating frame of the present invention, and therefore has the same beneficial effects as the rotary bearing for the solar power generating frame, and therefore, a redundant description will be omitted here. [Brief explanation of the drawings]

[0026] [Figure 1]2 is a structural diagram of a rotary bearing and a main beam for a solar power generating frame according to an embodiment of the present invention; FIG. [Figure 2] 1 is a structural diagram of a rotary bearing for a solar power generation platform according to an embodiment of the present invention; [Figure 3] 2 is a structural diagram of a bearing base of a rotary bearing for a solar power generation platform according to an embodiment of the present invention; FIG. [Figure 4] 2 is a structural diagram of a bearing core of a rotary bearing for a solar power generation platform according to an embodiment of the present invention; FIG. [Figure 5] 2 is a schematic diagram showing the structure of a cable sheath of a rotary bearing for a solar power generation platform according to an embodiment of the present invention; FIG. DETAILED DESCRIPTION OF THE INVENTION

[0027] In order to more clearly describe the specific embodiments of the present invention or the technical solutions of the prior art, the drawings that need to be used to describe the specific embodiments or the prior art will be briefly described below. It is obvious that the drawings described below are some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without any creative work.

[0028] In order to clarify the objectives, technical solutions and advantages of the embodiments of the present invention, the technical solutions of the embodiments of the present invention will be described below clearly and completely with reference to the drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of the embodiments. All other embodiments that a person skilled in the art can derive from the embodiments of the present invention without any creative work fall within the scope of protection of the present invention.

[0029] Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

[0030] According to an embodiment of the present invention, in one aspect, as shown in Figures 1 to 5, a rotary bearing for a solar power generation frame is provided, comprising: a bearing base 1, a bearing core 2, and a cable sheath 3; a circular through-hole 101 is provided in the bearing base 1; two bearing cores 2 are movably mounted in the circular through-hole 101; a first mounting groove 201 is provided on the side portion of the bearing core 2; the two first mounting grooves 201 are surrounded to form a second through-hole; the second through-hole is suitable for mounting a main beam 4; the cable sheath 3 is detachably mounted on the bearing core 2; a mounting chamber 301 is provided in the cable sheath 3; and the mounting chamber 301 is suitable for mounting a cable.

[0031] Specifically, as shown in Figures 1 to 3, in this embodiment, one side of the bearing base 1 is arc-shaped and the other side is flat, and a circular through-hole 101 is provided in the middle part of the bearing base 1, and the flat side of the bearing base 1 is used to fix and connect to the solar power generation frame; as shown in Figures 1, 2 and 4, the bearing core 2 is semicircular, and its dimension is slightly smaller than half the dimension of the circular through-hole 101, the arc-shaped outer wall of the bearing core 2 fits into the arc-shaped inner wall of the bearing base 1, and a first mounting groove 201 is provided on the side away from the arc-shaped outer wall of the bearing core 2, and the two first mounting grooves 201 of the two bearing cores 2 surround each other to form a second through-hole, and the bearing core 2 can rotate along the inner wall of the circular through-hole 101 within the bearing base 1; as shown in Figures 1 and 2, the cable sheath 3 is detachably attached to the bearing core 2, and the mounting chamber 301 of the cable sheath 3 is in the same direction as the extension direction of the main shaft.

[0032] In this embodiment, the shape of the first mounting groove 201 is not specifically limited. For example, in this embodiment, the first mounting groove 201 is a rectangular groove, and two first mounting grooves 201 are surrounded to form a rectangular second through-hole, which is used to mount a rectangular main beam 4, and the dimensions of the second through-hole match the outer shape of the rectangular main beam 4. In other embodiments, the first mounting groove 201 may be arc-shaped, and two arc-shaped first mounting grooves 201 are surrounded to form a circular second through-hole, which is used to mount a tubular main beam 4.

[0033] Regarding the rotary bearing for the solar power generation frame in this embodiment, when in use, first, the bearing base 1 is fixed to the support base of the solar power generation frame, and then the two bearing cores 2 are brought close to each other and inserted into the circular through-hole 101, and then the two bearing cores 2 are moved away from each other and abutted against the inner wall of the circular through-hole 101, and then the main shaft is inserted into the second through-hole and fixed to the bearing core 2 to connect and firmly attach, and then the cable is installed in the installation chamber 301.

[0034] In this invention, the cable sheath 3 is detachably attached to the bearing core 2, and the cable is attached within the mounting chamber 301 of the cable sheath 3. When the bearing core 2 rotates relative to the bearing base 1, the cable sheath 3 can rotate together with the bearing core 2 in conjunction with the cable, thereby avoiding friction or locking between the cable and the bearing base 1.

[0035] In one embodiment, as shown in FIG. 5 , the cable sheath 3 includes a base 302 and a cover plate 303, the base 302 is detachably connected to the bearing core 2, the base 302 is provided with a second mounting groove, the second mounting groove is suitable for mounting a cable, the cover plate 303 is movably connected to the base 302, and a mounting chamber 301 is enclosed between the cover plate 303 and the second mounting groove.

[0036] Specifically, in this embodiment, the base 302 is detachably attached to the bearing core 2, the base 302 is provided with a second mounting groove recessed inward, the cover plate 303 is movably attached above the second mounting groove of the base 302, and a sealed mounting chamber 301 is enclosed between the cover plate 303 and the second mounting groove. When in use, the cover plate 303 is first opened, the cable is inserted into the second mounting groove, and then the cover plate 303 is connected to the base 302, and the mounting chamber 301 can rotate together with the bearing core 2, which prevents the cable from rubbing against the bearing base 1 when the bearing core 2 rotates, thereby playing a role in protecting the cable.

[0037] The present invention adopts a structure in which the cover plate 303 is movably connected to the base 302, making it easy to attach and detach the cable, and the mounting chamber 301 enclosed between the cover plate 303 and the second mounting groove serves to protect the cable, thereby preventing damage to the cable due to friction between the cable and the bearing base 1.

[0038] In one embodiment, as shown in FIG. 5, one side of the cover plate 303 is movably connected to one side of the second mounting groove, an engagement groove 304 or an engagement portion 305 is provided on the other side of the cover plate 303, and an engagement portion 305 or an engagement groove 304 is correspondingly provided on the other side of the second mounting groove, and the engagement groove 304 and the engagement portion 305 are engaged with each other.

[0039] Specifically, in this embodiment, one side of the cover plate 303 is movably connected to one side edge of the second mounting groove. For example, in this embodiment, the cover plate 303 and the edge of the second mounting groove are flexibly connected as an integral structure, thereby enabling the cover plate 303 to cover or open above the opening of the second mounting groove. In some other embodiments, the cover plate 303 and the second mounting groove may be hingedly connected by a hinge axis.

[0040] In this embodiment, a horizontal engagement groove 304 is provided on the outer side of the second mounting groove away from the side that is movably connected to the cover plate 303, and correspondingly, a protruding engagement portion 305 is provided on the bottom of the cover plate 303 away from the side that is movably connected to the second mounting groove, which engages with the engagement groove 304. A vertical recessed groove 308 is provided on the bottom of the cover plate 303 away from the side that is movably connected to the second mounting groove, and when the engagement portion 305 and the engagement groove 304 engage with each other, the upper part of the second mounting groove is inserted into the recessed groove 308, thereby realizing a stable connection between the cover plate 303 and the second mounting groove.

[0041] In the present invention, the cover plate 303 and the second mounting groove are fitted with the engaging groove 304 and the engaging portion 305, which has the advantages of a simple structure, easy installation and removal, and stable engagement.

[0042] In one embodiment, as shown in Figures 2, 4 and 5, a mounting hole 202 is provided in the bearing core 2, a mounting portion 306 is provided at the bottom of the base 302, there is an appropriate gap between the bottom of the base 302 and the outer wall of the bearing stand 1, and the mounting portion 306 is detachably attached within the mounting hole 202.

[0043] Specifically, in this embodiment, an "L"-shaped mounting portion 306 is provided at the bottom of the base 302, and a mounting hole 202 having the same cross section as the mounting portion 306 is provided in the bearing core 2, and the mounting portion 306 is detachably mounted in the mounting hole 202. In this embodiment, the number of mounting holes 202 is not specifically limited, and for example, in this embodiment, two mounting holes 202 are provided in each bearing core 2, and the two mounting holes 202 are symmetrically arranged on both sides of the first mounting groove 201.

[0044] In this invention, there is an appropriate gap between the bottom of the base 302 and the outer wall of the bearing base 1, so that when the bearing core 2 rotates within the bearing base 1, the base 302 can rotate synchronously with the bearing core 2 in conjunction with the cable, thereby avoiding friction or jamming between the cable and the bearing base 1.

[0045] In one embodiment, as shown in FIG. 5, the mounting portion 306 includes two bumps 307 spaced apart from each other, with a recess 308 between the two bumps 307, and the bumps 307 and the mounting hole 202 engage with each other.

[0046] Specifically, in this embodiment, the end of the mounting part 306 that fits into the mounting hole 202 is provided with two spaced-apart bumps 307, and a groove 308 is provided between the two bumps 307. When the mounting part 306 is inserted into the mounting hole 202 from one side, the two bumps 307 are constrained by the mounting hole 202 and deform toward each other, moving toward the groove 308. After the mounting part 306 is completely inserted into the mounting hole 202, the two bumps 307 return to their original positions and are constrained by the mounting hole 202 to engage with it, thereby ensuring a strong attachment of the mounting part 306. If the mounting part 306 needs to be removed, the operator can simply press the two bumps 307 against each other to remove them from the mounting hole 202, which makes the mounting part 306 removable. This simple structure makes it easy to operate.

[0047] In the present invention, the mounting portion 306 is provided with two bumps 307 spaced apart from each other, so that when the mounting portion 306 is installed in the mounting hole 202, the two bumps 307 can engage with the mounting hole 202 to provide a more stable installation of the base 302 to the bearing core 2.

[0048] In one embodiment, as shown in FIG. 2, the first mounting groove 201 is rectangular, and grooves 2011 are provided at the corners of the first mounting groove 201 .

[0049] Specifically, in this embodiment, the first mounting groove 201 is rectangular, and one groove 2011 is provided at each of the two corners of the first mounting groove 201, and the cross section of the groove 2011 is arc-shaped.

[0050] In this invention, a groove 2011 is provided at the corner of the first mounting groove 201, which can reduce friction between the main beam 4 and the corner of the first mounting groove 201 when the main beam 4 is attached or detached into the second through hole.

[0051] In one embodiment, as shown in FIGS. 2 and 4, the bearing core 2 is provided with a fixing member 203, which is suitable for being fixedly connected to the main beam 4.

[0052] Specifically, in this embodiment, one fixing member 203 is provided on the bearing core 2 along the extension direction of the main beam 4, the fixing member 203 is rectangular, the fixing member 203 is flush with the edge position of the first mounting groove 201, two second mounting screw holes 2031 are provided on the fixing member 203, and the bolt 5 is inserted into the second mounting screw hole 2031 to fix and connect to the main beam 4.

[0053] In the present invention, the fixing member 203 is provided on the bearing core 2, which makes it easy to fix the main beam 4 and the bearing core 2 together.

[0054] In one embodiment, as shown in FIGS. 2 and 4, limiting portions 204 are provided on both edges of the bearing core 2, respectively, and the limiting portions 204 abut against the bearing stand 1.

[0055] Specifically, in this embodiment, radially extending limiting portions 204 are provided on the arc-shaped edges on both sides of the bearing core 2, and when the bearing core 2 is installed in the circular through hole 101, the limiting portions 204 on both sides abut against the bearing base 1, and when the bearing core 2 rotates, the limiting portions 204 can prevent the bearing core 2 from coming off the circular through hole 101.

[0056] In this invention, limiting portions 204 are provided on both edges of the bearing core 2, and the limiting portions 204 abut against the bearing base 1, so that the bearing core 2 can be stably restricted and installed within the bearing base 1.

[0057] In one embodiment, as shown in FIG. 3, the bearing base 1 has two openings 102 in the axial direction of the circular through hole 101, and the bearing base 1 has two mounting screw holes 103 in the radial direction of the circular through hole 101, the openings 102 communicating with the mounting screw holes 103, and the mounting screw holes 103 are suitable for connection to a bearing support member.

[0058] Specifically, in this embodiment, two openings 102 are provided on the side surface of the flat side of the bearing base 1, and two mounting screw holes 103 are provided in the bottom surface of the flat side of the bearing base 1 in the radial direction of the circular through hole 101, and the openings 102 are connected to the mounting screw holes 103, and the openings 102 allow the bottom of the bearing base 1 to be perforated, which not only reduces the weight of the bearing base 1 but also makes it easier to attach bolts connected to the solar power generation frame to the mounting screw holes 103.

[0059] In the present invention, the bearing base 1 is provided with an opening 102, which makes it easy to install the connecting bolt into the mounting screw hole 103.

[0060] In this embodiment, as shown in FIG. 4, the bearing core 2 is further provided with two second mounting holes 205, which are used to mount cables without MC4 connectors that need to pass through the bearing, and the cable sheath 3 and the second mounting holes 205 provide options for different cables to pass through the bearing.

[0061] In the present invention, the installation process of the rotary bearing for the solar mounting platform is as follows:

[0062] 1. The two mounting screw holes 103 of the bearing base 1 are connected to the solar power generation mounting base via connecting bolts; 2. The two bearing cores 2 are inserted into the circular through-holes 101 of the bearing base 1, and the limiting portions 204 on both sides of the bearing cores 2 limit the bearing cores 2 within the bearing base 1; 3. Insert the square main beam 4 into the second through hole of the bearing core 2; 4. Four bolts 5 are used to connect the fixing member 203 of the bearing core 2 to the main beam 4 through the second mounting screw holes 2031; 5. Insert the mounting portion 306 of the cable sheath 3 into the mounting hole 202 at the top of the bearing core 2, 6. Optionally, the second mounting hole 205 of the bearing core 2 can be used to mount a cable without an MC4 connector that needs to pass through the bearing; 7. Open the engaging portion 305 on the cover plate 303 of the cable sheath 3, insert the cable (a cable with an MC4 connector may be inserted) into the mounting chamber 301, engage the engaging portion 305 with the engaging groove 304, and fix the cable in the cable sheath 3.

[0063] According to an embodiment of the present invention, in another aspect, there is further provided a solar photovoltaic mounting frame, comprising: a rotary bearing for the solar photovoltaic mounting frame, a support base, and a mounting frame, wherein the support base is suitable for being fixed to the ground, the bearing base 1 is fixed to the support base, the mounting frame is provided with a main beam 4, the main beam 4 is mounted in the second through-hole, and the mounting frame is suitable for mounting a solar photovoltaic module.

[0064] In this invention, the bearing base 1 is attached to the support base, the main beam 4 on the mounting frame is inserted into the second through-hole, the cable sheath 3 is detachably attached to the bearing core 2, the cable can be attached within the mounting chamber 301 of the cable sheath 3, and when the bearing core 2 rotates relative to the bearing base 1, the cable sheath 3 can rotate together with the bearing core 2 in conjunction with the cable, thereby avoiding friction or locking between the cable and the bearing base 1.

[0065] Although the embodiments of the present invention have been described with reference to the drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and all such modifications and variations fall within the scope defined in the accompanying utility model registration claims. [Explanation of symbols]

[0066] 1. Bearing stand 101, circular through hole 102, open hole 103, Mounting screw hole 2. Bearing core 201, first mounting groove 2011, Groove 202, mounting hole 203, fixing member 2031, second mounting screw hole 204, Restricted Section 205, second mounting hole 3. Cable sheath 301, installation room 302, base 303, cover plate 304, engagement groove 305, engagement portion 306, mounting part 307, Bump 308. Groove 4, main beam 5. Bolt

Claims

1. The cable includes a bearing base (1), a bearing core (2), and a cable sheath (3), The bearing base (1) is provided with a circular through hole (101), The two bearing cores (2) are movably mounted in the circular through-holes (101), and first mounting grooves (201) are provided on the side surfaces of the bearing cores (2), and the two first mounting grooves (201) are surrounded to form second through-holes, and the second through-holes are suitable for mounting the main beams (4); The cable sheath (3) is detachably attached to the bearing core (2), and the cable sheath (3) is provided with an attachment chamber (301), and the attachment chamber (301) is suitable for attaching a cable.

2. The cable sheath (3) includes a base (302) and a cover plate (303), The base (302) is detachably connected to the bearing core (2), and a second mounting groove is provided on the base (302), and the second mounting groove is suitable for mounting a cable; The rotary bearing for a solar power generation stand according to claim 1, characterized in that the cover plate (303) is movably connected to the base (302), and the mounting chamber (301) is enclosed between the cover plate (303) and the second mounting groove.

3. The rotary bearing for a solar power generation stand according to claim 2, characterized in that one side of the cover plate (303) is movably connected to one side of the second mounting groove, an engagement groove (304) or an engagement portion (305) is provided on the other side of the cover plate (303), the engagement portion (305) or the engagement groove (304) is correspondingly provided on the other side of the second mounting groove, and the engagement groove (304) and the engagement portion (305) engage with each other.

4. The rotary bearing for a solar power generation stand according to claim 2, characterized in that the bearing core (2) is provided with an attachment hole (202), the base (302) is provided with an attachment portion (306) at the bottom thereof, there is an appropriate gap between the bottom of the base (302) and the outer wall of the bearing stand (1), and the attachment portion (306) is detachably attached within the attachment hole (202).

5. The rotary bearing for a solar power generation mounting system according to claim 4, characterized in that the mounting portion (306) includes two bumps (307) spaced apart from each other, a groove (308) is provided between the two bumps (307), and the bumps (307) and the mounting hole (202) engage with each other.

6. The rotary bearing for a solar power generation stand according to claim 1, characterized in that the first mounting groove (201) is rectangular and grooves (2011) are provided at the corners of the first mounting groove (201).

7. The rotary bearing for a solar power generation mounting system according to claim 1, characterized in that the bearing core (2) is provided with a fixing member (203), and the fixing member (203) is suitable for being fixedly connected to the main beam (4).

8. The rotary bearing for a solar power generation frame according to claim 1, characterized in that limiting portions (204) are provided on both side edges of the bearing core (2), and the limiting portions (204) abut against the bearing base (1).

9. The rotary bearing for a solar power generation stand according to claim 1, characterized in that the bearing base (1) has two openings (102) in the axial direction of the circular through hole (101), the bearing base (1) has two mounting screw holes (103) in the radial direction of the circular through hole (101), the openings (102) communicate with the mounting screw holes (103), and the mounting screw holes (103) are suitable for connection to a bearing support member.

10. A solar power generation mounting system comprising: a rotary bearing for a solar power generation mounting system according to any one of claims 1 to 9; a support base; and an attachment frame; The support base is adapted to be fixed to the ground, and the bearing base (1) is fixed to the support base; The mounting frame is provided with a main beam (4), the main beam (4) is mounted in the second through hole, and the mounting frame is suitable for mounting a solar power generation module.

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