Rotation device of photovoltaic tracking support and photovoltaic tracking support

By setting up an oil guide groove below the rotary drive mechanism of the photovoltaic tracking bracket, the problem of oil leakage pollution water quality in the fishing and light complementary project is solved, and the pollution-free photovoltaic tracking bracket design is achieved.

CN223124831UActive Publication Date: 2025-07-18ARCTECH SOLAR HOLDING CO LTD
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Patent Information

Application Number
CN202422311079.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-23
Publication Date
2025-07-18
Estimated Expiration
2034-09-23

AI Technical Summary

Technical Problem

In the fishing and light complementary photovoltaic project, the rotary reducer of the photovoltaic tracking bracket occasionally leaks oil during work, resulting in water pollution and affecting aquaculture.

Method used

An oil guide groove is set up below the rotary drive mechanism. The oil leakage is dripped into the oil guide groove under the action of gravity and guided into the column through the oil guide groove to prevent oil leakage from flowing into the water.

Benefits of technology

It effectively avoids the pollution of water quality by oil leakage, protects the water quality environment, and meets the water quality requirements of the fishing and light complementary project.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of fishing light complementation, and discloses a photovoltaic tracking support and a rotation device of the photovoltaic tracking support, the rotation device of the photovoltaic tracking support comprises a stand column, a rotation driving mechanism and an oil guide groove, the bottom end of the stand column is closed, and the top end of the stand column is provided with an opening; the rotary driving mechanism is arranged at the top end of the stand column; the oil guide groove is formed in the top end of the stand column and located below the rotary driving mechanism, and an outlet of the oil guide groove corresponds to an opening of the stand column so that leaked oil in the oil guide groove can be guided into the stand column. The oil guide groove is formed below the rotary driving mechanism, leaked oil drops drop into the oil guide groove under the action of gravity when the rotary driving mechanism works, then leaked oil generated by the rotary driving mechanism is guided into the stand column from the opening in the top end of the stand column under the guide action of the oil guide groove, the bottom of the stand column is closed, and the leaked oil can be prevented from flowing into water. And pollution to water quality is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of complementary fishing and photovoltaic technology, in particular to a rotary device of a photovoltaic tracking bracket and a photovoltaic tracking bracket. Background Art

[0002] The photovoltaic tracking bracket includes a rotary device, and the angle of the photovoltaic panel is automatically adjusted according to the position of the sun through the rotary device, so that the photovoltaic panel always faces the sun, thereby maximizing the capture of sunlight and significantly improving the power generation efficiency of the photovoltaic system. The photovoltaic tracking bracket can be applied to different application scenarios. Among them, the photovoltaic bracket for fishing-light projects has also been widely used in recent years.

[0003] The fishing-light complementary photovoltaic project is a new energy utilization mode that combines fishery breeding and photovoltaic power generation. It realizes the dual benefits of "generating electricity above and raising fish below" by erecting a photovoltaic panel array above the fishpond water surface. This mode makes full use of land resources and realizes the coordinated development of energy, breeding, and industry, which is of great significance for promoting green development and improving the proportion structure of clean energy in the region.

[0004] Due to the special scenario of the fishing-light complementary photovoltaic project, which involves breeding, the requirements for water quality and the like are relatively high. Although the photovoltaic tracking bracket is not a heavily polluting structure, however, its rotary speed reducer sometimes leaks oil during operation, which will pollute the water quality and affect breeding. Summary of the Utility Model

[0005] The purpose of this application is to provide a rotary device of a photovoltaic tracking bracket and a photovoltaic tracking bracket, which can avoid polluting the water quality.

[0006] The technical solution provided by this application is as follows:

[0007] On the one hand, a rotary device of a photovoltaic tracking bracket is provided, including:

[0008] A column, the bottom end of the column is closed, and the top end is provided with an opening;

[0009] A rotary drive mechanism, arranged at the top end of the column;

[0010] An oil guide groove, arranged at the top end of the column and below the rotary drive mechanism, and the outlet of the oil guide groove corresponds to the opening of the column to introduce the leaked oil in the oil guide groove into the column.

[0011] In some embodiments, the oil guide groove includes a first oil guide groove, a second oil guide groove, and a third oil guide groove. The first oil guide groove and the second oil guide groove are respectively arranged on both sides of the third oil guide groove and communicate with the third oil guide groove, and the outlet end of the third oil guide groove corresponds to the opening of the column.

[0012] In some embodiments, the first oil guide groove and the second oil guide groove are disposed on both sides of the third oil guide groove in the width direction;

[0013] One end of the third oil guide groove in the length direction is fixed relative to the column, and the other end of the third oil guide groove in the length direction is the outlet end of the third oil guide groove.

[0014] In some embodiments, the third oil guide groove includes a bottom plate, a first side plate, a second side plate, a first connecting plate, a second connecting plate, and a lug;

[0015] The first side plate and the second side plate are respectively disposed on both sides of the bottom plate in the width direction. The first connecting plate is fixedly connected to the first side plate, and the second connecting plate is fixedly connected to the second side plate;

[0016] The first oil guide groove is fixedly connected to the first connecting plate, and the second oil guide groove is fixedly connected to the second connecting plate;

[0017] The lug is fixedly connected to the first end of the bottom plate, and one end of the lug is fixedly connected to the column.

[0018] In some embodiments, the first oil guide groove and the second oil guide groove are respectively inclined;

[0019] The first oil guide groove includes a first end and a second end in the length direction. The second end is communicated with the third oil guide groove. Wherein, the height of the first end is higher than the height of the second end;

[0020] The second oil guide groove includes a third end and a fourth end in the length direction. The fourth end is communicated with the third oil guide groove. Wherein, the height of the third end is higher than the height of the fourth end.

[0021] In some embodiments, the third oil guide groove is inclined, and the height of the outlet end of the third oil guide groove is lower than the height of the other end of the third oil guide groove.

[0022] In some embodiments, the inclination angle of the first oil guide groove is 3 to 10 degrees;

[0023] The inclination angle of the second oil guide groove is 3 to 10 degrees;

[0024] The inclination angle of the third oil guide groove is 3 to 10 degrees.

[0025] In some embodiments, the rotary drive mechanism includes a motor and a rotary speed reducer, and the motor is in transmission connection with the rotary speed reducer;

[0026] The first oil guiding groove is located below the motor, and the second oil guiding groove is located below the slewing speed reducer.

[0027] In some embodiments, it further includes a slewing base, which is arranged on the column. A through hole corresponding to the opening is provided on the slewing base. The slewing drive mechanism and the oil guiding groove are respectively arranged on the slewing base, and the outlet end of the oil guiding groove corresponds to the through hole on the slewing base.

[0028] On the other hand, a photovoltaic tracking bracket is also provided, which includes the slewing device of the photovoltaic tracking bracket described in any of the above embodiments.

[0029] The technical effect of this application is as follows: An oil guiding groove is arranged below the slewing drive mechanism. When the slewing drive mechanism works, the leaked oil drops drip into the oil guiding groove under the action of gravity, and then under the guiding action of the oil guiding groove, the oil leakage generated by the slewing drive mechanism is introduced into the column from the opening at the top of the column. The bottom of the column is closed, which can prevent the oil leakage from flowing into the water and further avoid polluting the water quality. Description of the Drawings

[0030] The following further describes this application in detail in conjunction with the drawings and specific embodiments:

[0031] Figure 1 is a schematic structural diagram of a photovoltaic tracking bracket provided by a specific embodiment of this application;

[0032] Figure 2 is a schematic structural diagram of the slewing device provided by a specific embodiment of this application;

[0033] Figure 3 is a partial structural diagram of the slewing device provided by a specific embodiment of this application;

[0034] Figure 4 is a schematic structural diagram of the oil guiding groove provided by a specific embodiment of this application;

[0035] Figure 5 is a schematic structural diagram of the third oil guiding groove provided by a specific embodiment of this application.

[0036] Explanation of the Reference Numerals in the Drawings:

[0037] 10. Slewing device; 100. Column; 200. Slewing drive mechanism; 300. Oil guiding groove; 310. First oil guiding groove; 320. Second oil guiding groove; 330. Third oil guiding groove; 331. Bottom plate; 332. First side plate; 333. Second side plate; 334. First connecting plate; 335. Second connecting plate; 336. Lug; 400. Slewing base; 410. Through hole; 500. Main beam; 600. Photovoltaic module. Detailed Embodiments

[0038] In the following description, specific details such as specific system architectures and technologies are presented for purposes of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, those skilled in the art should understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from obscuring the description of the present application.

[0039] To more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will describe the specific implementation manners of the present application with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, and other implementation manners can also be obtained.

[0040] To make the drawings concise, only the parts related to the present application are schematically shown in each drawing, and they do not represent the actual structure of the product as a whole. In addition, to make the drawings concise and easy to understand, in some drawings, for components with the same structure or function, only one of them is schematically shown, or only one of them is labeled. In this document, "one" not only means "only one", but also means "more than one" situation.

[0041] It should be further understood that the term "and / or" used in the specification and appended claims of the present application refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0042] In this document, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0043] In the embodiments shown in the drawings, the indication of directions (such as up, down, left, right, front, and back, etc.) when describing the structures and movements of various components is not absolute but relative, and is not used to limit the directions when the product is actually used.

[0044] In addition, in the description of the present application, ordinal numbers, such as "first", "second", etc., are only used to distinguish and describe related objects, and cannot be understood as indicating or implying the relative importance or order between related objects.

[0045] According to the specific embodiments provided by the present application, as Figure 1 and Figure 2 shown, a slewing device 10 of a photovoltaic tracking bracket is disclosed. The slewing device 10 is used to drive the main beam 500 to rotate. A photovoltaic module 600 is arranged on the main beam 500. When the main beam 500 rotates, the photovoltaic module 600 is driven to rotate. As Figure 2 and Figure 3 shown, the slewing device 10 includes a column 100, a slewing drive mechanism 200 and an oil guide groove 300. The bottom end of the column 100 is closed, and the top end is provided with an opening; the slewing drive mechanism 200 is arranged at the top end of the column 100; the oil guide groove 300 is arranged at the top end of the column 100 and is located below the slewing drive mechanism 200. The outlet of the oil guide groove 300 corresponds to the opening of the column 100 to introduce the leaked oil in the oil guide groove 300 into the column 100.

[0046] An oil guide groove 300 is arranged below the slewing drive mechanism 200. The oil leaked when the slewing drive mechanism 200 works drips into the oil guide groove 300 under the action of gravity, and then under the guiding action of the oil guide groove 300, the leaked oil generated by the slewing drive mechanism 200 is introduced into the column 100 from the opening at the top end of the column 100. The bottom of the column 100 is closed, which can prevent the leaked oil from flowing into the water and further avoid polluting the water quality.

[0047] In this embodiment, the length and width of the oil guide groove 300 can be set according to the position and length where the slewing drive mechanism 200 leaks oil, and the depth of the oil guide groove 300 can be set according to the amount of leaked oil, so as to ensure that all the leaked oil generated by the slewing drive mechanism 200 will enter the oil guide groove 300 and will not overflow from the oil guide groove 300, so as to avoid polluting the water quality due to the leaked oil.

[0048] In one embodiment, the oil guide groove 300 can be a strip-shaped groove. An outlet is arranged on the side wall of the strip-shaped groove, and the outlet corresponds to the opening on the column 100. The strip-shaped groove is used to receive the leaked oil generated by the slewing drive mechanism 200, and the leaked oil in the oil guide groove 300 is introduced into the column 100 through the outlet on the side wall of the strip-shaped groove. The oil guide groove 300 can be formed by bending a sheet metal part, with simple processing and convenient installation.

[0049] In another embodiment, the oil guide groove 300 includes two strip-shaped grooves. The opening on the column 100 is located below the middle of the slewing drive mechanism 200. The two strip-shaped grooves are respectively arranged on both sides of the opening, and the outlet ends of the two strip-shaped grooves are respectively arranged corresponding to the opening of the column 100. The strip-shaped groove on the left side of the opening can be used to receive the leaked oil from the left part of the slewing drive mechanism 200, and the strip-shaped groove on the right side of the opening can be used to receive the leaked oil from the right part of the slewing mechanism 200, and then the leaked oil in the strip-shaped grooves is introduced into the column 100 from the opening on the column 100 through the outlet ends of the two strip-shaped grooves.

[0050] In yet another embodiment, as Figure 3 and Figure 4 shown, the oil guiding groove 300 includes a first oil guiding groove 310, a second oil guiding groove 320, and a third oil guiding groove 330. The first oil guiding groove 310 and the second oil guiding groove 320 are respectively arranged on both sides of the third oil guiding groove 330 and communicate with the third oil guiding groove 330. The outlet end of the third oil guiding groove 330 corresponds to the opening of the column 100. Both the first oil guiding groove 310 and the second oil guiding groove 320 can be formed by bending sheet metal parts, and the processing is simple.

[0051] The third oil guiding groove 330 can be arranged below the middle of the rotary driving mechanism 200. The first oil guiding groove 310 can be used to receive the leaked oil from the left part of the rotary driving mechanism 200, and the second oil guiding groove 320 can be used to receive the leaked oil from the right part of the rotary driving mechanism 200. Then, the leaked oil in the first oil guiding groove 310 and the second oil guiding groove 320 enters the third oil guiding groove 330 to be collected, and then is discharged through the outlet end of the third oil guiding groove 330 and enters the column 100. The lengths of the first oil guiding groove 310 and the second oil guiding groove 320 are both set according to the length of the rotary driving mechanism 200. The first oil guiding groove 310, the second oil guiding groove 320, and the third oil guiding groove 330 can all be formed by bending sheet metal parts, with simple processing, reducing the production cost while ensuring the structural strength and stability, and achieving lightweight.

[0052] Further, the first oil guiding groove 310 and the second oil guiding groove 320 are arranged on both sides of the third oil guiding groove 330 along the width direction; the first end of the third oil guiding groove 330 along the length direction is fixed relative to the column 100, and the second end of the third oil guiding groove 330 along the length direction is the outlet end of the third oil guiding groove 330.

[0053] As Figure 5 shown, the third oil guiding groove 330 includes a bottom plate 331, a first side plate 332, a second side plate 333, a first connecting plate 334, a second connecting plate 335, and a lug 336; the first side plate 332 and the second side plate 333 are respectively arranged on both sides of the bottom plate 331 along the width direction, the first connecting plate 334 is fixedly connected to the first side plate 332, and the second connecting plate 335 is fixedly connected to the second side plate 333; the first oil guiding groove 310 is fixedly connected to the first connecting plate 334, and the second oil guiding groove 320 is fixedly connected to the second connecting plate 335; one end of the lug 336 is fixedly connected to the first end of the bottom plate 331, and the lug 336 is fixedly connected to the column 100.

[0054] The first side plate 332 and the second side plate 333 are respectively arranged on both sides of the bottom plate 331, which can make the third oil guiding groove 330 form a groove body structure with a certain depth. A certain amount of leaked oil can be accommodated in the third oil guiding groove 330 to prevent the leaked oil from overflowing. The first connecting plate 334 is connected to the first side plate 332. The first connecting plate 334 can be arranged perpendicular to the first side plate 332, that is, the first connecting plate 334 is arranged horizontally or approximately horizontally. The bottom of the first oil guiding groove 310 and the top surface of the first connecting plate 334 can be fixedly connected by welding or other means. By setting the first connecting plate 334, not only the connection between the third oil guiding groove 330 and the first oil guiding groove 310 is facilitated, but also the structural stability is increased.

[0055] The second connecting plate 335 is connected to the second side plate 333. The second connecting plate 335 can be arranged perpendicular to the second side plate 333, that is, the second connecting plate 335 is arranged horizontally or approximately horizontally. The bottom of the second oil guiding groove 320 and the top surface of the second connecting plate 335 can be fixedly connected by welding or other means. By setting the second connecting plate 335, not only the connection between the third oil guiding groove 330 and the second oil guiding groove 320 is facilitated, but also the structural stability of the entire oil guiding groove 300 is increased.

[0056] The lug 336 is fixedly connected to the first end of the bottom plate 331. Bolt holes can be provided on the lug 336 to fix the third oil guiding groove 330 on the column 100 through bolts, which is convenient for installation. In this embodiment, the bottom plate 331, the first side plate 332, the second side plate 333, the first connecting plate 334, the second connecting plate 335 and the lug 336 can be integrally formed by sheet metal bending, and the processing is simple. During installation, the first oil guiding groove 310, the second oil guiding groove 320 and the third oil guiding groove 330 can be welded first, and then the lug 336 and the column 100 can be fastened by bolts to complete the installation of the entire oil guiding groove 300, which is convenient and fast.

[0057] Furthermore, the first oil guiding groove 310 and the second oil guiding groove 320 are respectively arranged obliquely. The first oil guiding groove 310 includes a first end and a second end along the length direction. The second end is communicated with the third oil guiding groove 330. Among them, the height of the first end is higher than that of the second end to facilitate the smooth drainage of the leaked oil in the first oil guiding groove 310 into the third oil guiding groove 330, reduce the retention of the leaked oil in the first oil guiding groove 310, and reduce the maintenance cost.

[0058] The second oil guiding groove 320 includes a third end and a fourth end along the length direction. The fourth end is communicated with the third oil guiding groove 330. Among them, the height of the third end is higher than that of the fourth end to facilitate the smooth drainage of the leaked oil in the second oil guiding groove 320 into the third oil guiding groove 330, reduce the retention of the leaked oil in the second oil guiding groove 320, and reduce the maintenance cost.

[0059] The third oil guiding groove 330 is also inclined, and the height of the outlet end of the third oil guiding groove 330 is lower than the height of the other end of the third oil guiding groove 330. Such a design helps the leaked oil to be smoothly discharged into the column 100, reducing the retention of the leaked oil in the third oil guiding groove 330, not only reducing the maintenance cost, but also avoiding the overflow of the leaked oil outside the third oil guiding groove 330 due to retention.

[0060] The inclination angle of the first oil guiding groove 310 is 3 to 10 degrees; the inclination angle of the second oil guiding groove 320 is 3 to 10 degrees; the inclination angle of the third oil guiding groove 330 is 3 to 10 degrees. Preferably, the inclination angle of the first oil guiding groove 310 is 5 degrees; the inclination angle of the second oil guiding groove 320 is 5 degrees; the inclination angle of the third oil guiding groove 330 is 5 degrees. This inclination angle design can not only avoid too large an inclination angle of the oil guiding groove 300, occupying more space, but also enable the leaked oil to be smoothly discharged from the oil guiding groove 300, avoiding the retention of the leaked oil in the oil guiding groove 300.

[0061] The slewing drive mechanism 200 includes a motor and a slewing speed reducer, and the motor is in transmission connection with the slewing speed reducer; the first oil guiding groove 310 is located below the motor, and the second oil guiding groove 320 is located below the slewing speed reducer. The first oil guiding groove 310 is used to receive the leaked oil generated by the motor, and the second oil guiding groove 320 is used to receive the leaked oil generated by the slewing speed reducer.

[0062] In one embodiment, as Figure 3 shown, the slewing device 10 further includes a slewing base 400, the slewing base 400 is fixedly arranged on the column 100 by bolts, etc., a through hole 410 corresponding to the opening is provided on the slewing base 400, the slewing drive mechanism 200 and the oil guiding groove 300 are respectively arranged on the slewing base 400, and the outlet end of the oil guiding groove 300 corresponds to the through hole 410 on the slewing base 400. Since the cross-sectional area of the column 100 is small, by providing the slewing base 400 on the column 100, it is convenient for the installation of the slewing drive mechanism 200 and the oil guiding groove 300.

[0063] The present utility model also provides a photovoltaic tracking bracket, as Figures 1 to 5 shown, including the slewing device 10 of the photovoltaic tracking bracket described in the above embodiment, the slewing device 10 is used to drive the main beam 500 to rotate, the photovoltaic module 600 is fixed to the main beam 500 through purlins, and when the main beam 500 rotates, it drives the photovoltaic module 600 to rotate, so as to adjust the angle of the photovoltaic module 600 to maximize the capture of sunlight. An oil guiding groove 300 is arranged below the slewing drive mechanism 200 of the slewing device 10, and the oil guiding groove 300 can introduce the leaked oil generated by the slewing drive mechanism 200 into the column 100 to avoid pollution of water quality by the leaked oil.

[0064] In the above embodiments, the descriptions of the respective embodiments have their own focuses. For parts that are not described or recorded in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0065] It should be noted that the above embodiments can be freely combined as needed. The above is only the preferred embodiment of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A slewing device for a photovoltaic tracking bracket, characterized in that, include: A column, wherein the bottom end of the column is closed and the top end is provided with an opening; A rotary drive mechanism is arranged at the top end of the column; An oil guide groove is arranged at the top of the column and below the rotary drive mechanism, and an outlet of the oil guide groove corresponds to an opening of the column so as to guide the leaked oil in the oil guide groove into the column.

2. The photovoltaic tracking bracket rotation device according to claim 1, characterized in that: The oil guide groove includes a first oil guide groove, a second oil guide groove and a third oil guide groove. The first oil guide groove and the second oil guide groove are respectively arranged on both sides of the third oil guide groove and are connected to the third oil guide groove. The outlet end of the third oil guide groove corresponds to the opening of the column.

3. The photovoltaic tracking bracket rotation device according to claim 2, characterized in that: The first oil guiding groove and the second oil guiding groove are arranged on both sides of the third oil guiding groove along the width direction; A first end of the third oil guiding groove along the length direction is fixed relative to the column, and a second end of the third oil guiding groove along the length direction is an outlet end of the third oil guiding groove.

4. The photovoltaic tracking bracket rotation device according to claim 3, characterized in that: The third oil guide groove comprises a bottom plate, a first side plate, a second side plate, a first connecting plate, a second connecting plate and a lug; The first side plate and the second side plate are respectively arranged on both sides of the bottom plate along the width direction, the first connecting plate is fixedly connected to the first side plate, and the second connecting plate is fixedly connected to the second side plate; The first oil guide groove is fixedly connected to the first connecting plate, and the second oil guide groove is fixedly connected to the second connecting plate; The lug is fixedly connected to the first end of the base plate, and one end of the lug is fixedly connected to the column.

5. The photovoltaic tracking bracket rotation device according to claim 3, characterized in that: The first oil guide groove and the second oil guide groove are respectively arranged obliquely; The first oil guiding groove comprises a first end and a second end along the length direction, the second end is connected to the third oil guiding groove, wherein the height of the first end is higher than the height of the second end; The second oil guiding groove includes a third end and a fourth end along the length direction, the fourth end is communicated with the third oil guiding groove, wherein the height of the third end is higher than the height of the fourth end.

6. The photovoltaic tracking bracket rotation device according to claim 5, characterized in that: The third oil guiding groove is arranged obliquely, and the height of the outlet end of the third oil guiding groove is lower than the height of the other end of the third oil guiding groove.

7. The photovoltaic tracking bracket rotation device according to claim 6, characterized in that: The inclination angle of the first oil guide groove is 3 to 10 degrees; The inclination angle of the second oil guide groove is 3 to 10 degrees; The inclination angle of the third oil guide groove is 3 to 10 degrees.

8. The photovoltaic tracking bracket rotation device according to claim 2, characterized in that: The rotary drive mechanism comprises a motor and a rotary reducer, and the motor is drivingly connected to the rotary reducer; The first oil guiding groove is located below the motor, and the second oil guiding groove is located below the slewing speed reducer.

9. A slewing device of a photovoltaic tracking bracket according to any one of claims 1-8, characterized in that it further includes a slewing base, the slewing base is arranged on the column, a through hole corresponding to the opening is arranged on the slewing base, the slewing drive mechanism and the oil guiding groove are respectively arranged on the slewing base, and the outlet end of the oil guiding groove corresponds to the through hole on the slewing base.

10. A photovoltaic tracking bracket, characterized in that, A slewing device of a photovoltaic tracking bracket includes any one of claims 1-9.