Bearing assembly, photovoltaic support and photovoltaic system

Abstract

The utility model discloses a bearing assembly, a photovoltaic support and a photovoltaic system, and belongs to the technical field of photovoltaics. The bearing assembly comprises a bearing seat; the bearing is pivotally mounted on the bearing seat, is used for mounting the main shaft and comprises a first part and a second part, one side of the first part along the axial direction is provided with a first boss, one side of the second part along the axial direction is provided with a second boss, and the first boss and the second boss protrude outwards relative to the inner wall of the bearing seat; the limiting piece penetrates through at least one of the first part and the second part and is provided with a limiting part protruding out of the peripheral wall of the bearing; the first boss and the limiting part protruding out of the peripheral wall of the first part are located on the two axial sides of the bearing pedestal respectively, and the second boss and the limiting part protruding out of the peripheral wall of the second part are located on the two axial sides of the bearing pedestal respectively. By using the structure, the bearing is limited in the axial direction, the risk that the bearing falls off is reduced, the stability and reliability of the photovoltaic support are improved, and long-term stable operation of a photovoltaic system is maintained.

Description

Technical Field

[0001] This application belongs to the field of photovoltaic technology, and particularly relates to a bearing assembly, a photovoltaic support, and a photovoltaic system. Background Art

[0002] In existing photovoltaic supports, in order to enable photovoltaic modules to track and move according to the position change of the sun, so as to maximize the solar energy collection efficiency, a common practice is to install a bearing assembly at the joint of the column and the main shaft to ensure the normal rotation of the main shaft, thereby driving the normal rotation of the photovoltaic module. The bearing assembly includes a bearing seat and a bearing installed in the bearing seat. The service life and structural characteristics of the bearing often affect the stability of the photovoltaic support structure. There are differences in the selection of bearings for different geographical scenarios such as mountains, deserts, and lakes. At the same time, the bearing will have different specifications of shapes following the difference in the cross-sectional shape of the main shaft, which has an important impact on the photovoltaic system.

[0003] However, in practical applications, since the main shaft of the photovoltaic support drives the bearing to rotate axially relative to the bearing seat during rotation, after long-term operation of the photovoltaic support, the bearing is extremely prone to loosening or position deviation, and in severe cases, the bearing may even directly break away from the bearing seat, resulting in a decrease in the stability of the photovoltaic support and may also cause damage to the photovoltaic module, thereby affecting the overall performance of the photovoltaic system. Summary of the Utility Model

[0004] This application aims to solve at least one of the technical problems existing in the prior art. For this purpose, this application provides a bearing assembly, a photovoltaic support, and a photovoltaic system, which realizes the axial position limitation of the bearing and improves the stability and reliability of the photovoltaic support.

[0005] In a first aspect, this application provides a bearing assembly, including:

[0006] A bearing seat;

[0007] A bearing, which is pivotally installed in the bearing seat and is used to install the main shaft of the photovoltaic support, and includes a first part and a second part. One side of the first part along the axial direction has a first boss, and one side of the second part along the axial direction has a second boss. The first boss and the second boss protrude outward relative to the inner wall of the bearing seat;

[0008] A limiting member, which penetrates at least one of the first part and the second part, and the limiting member has a limiting portion protruding from the outer peripheral wall of the bearing; wherein,

[0009] The first boss and the limiting portion protruding from the outer peripheral wall of the first part are respectively located on both sides of the bearing seat axially, and the second boss and the limiting portion protruding from the outer peripheral wall of the second part are respectively located on both sides of the bearing seat axially.

[0010] For the bearing assembly according to the present application, through the settings of the above-mentioned first boss, second boss and limiting member, the axial position limitation of the bearing relative to the bearing seat is realized, reducing the risk of the bearing loosening, shifting in position or falling off, thereby improving the stability and reliability of the photovoltaic support, and further maintaining the long-term stable operation of the photovoltaic system. Compared with the common bearing baffle solution, the number of parts required is reduced, the installation cost is reduced, the installation process is simplified, the installation efficiency is improved, and at the same time, by using the through-type assembly method of the limiting member, the bearing itself can assist the limiting member to resist external stress, reducing the risk of fatigue failure of the limiting member, prolonging the service life of the limiting member, and significantly reducing the maintenance frequency of the limiting member, improving the maintainability of the limiting member. Secondly, the through-type assembly method enables the limiting member to be applicable to bearings of different sizes and shapes, increasing the diversity and flexibility of the bearing in the selection and design, thereby expanding the application range of the bearing assembly.

[0011] According to an embodiment of the present application, the limiting member penetrates through the first part and the second part.

[0012] According to an embodiment of the present application, both ends of the limiting member in the length direction are provided with the limiting portions.

[0013] According to an embodiment of the present application, a plurality of the limiting members are provided. The plurality of limiting members include a first limiting member and a second limiting member. The first limiting member penetrates through the first part, and the second limiting member penetrates through the second part.

[0014] According to an embodiment of the present application, both ends of the first limiting member in the length direction are provided with the limiting portions; both ends of the second limiting member in the length direction are provided with the limiting portions.

[0015] According to an embodiment of the present application, one end of the first limiting member in the length direction is provided with the limiting portion, and the other end of the first limiting member in the length direction is axially opposed to the second part; one end of the second limiting member in the length direction is provided with the limiting portion, and the other end of the first limiting member in the length direction is axially opposed to the first part.

[0016] According to an embodiment of the present application, the first boss and the second boss are located on the same side of the bearing.

[0017] According to an embodiment of the present application, the first boss and the second boss are located on different sides of the bearing.

[0018] According to an embodiment of the present application, in the case where a plurality of the limiting members are provided; wherein, the plurality of limiting members are spaced apart in the radial direction of the bearing on the same side of the bearing in the axial direction.

[0019] According to an embodiment of the present application, in the case where a plurality of the limiting members are provided; wherein, the plurality of the limiting members are arranged on both axial sides of the bearing along the radial direction and the axial direction of the bearing in a separated manner.

[0020] In a second aspect, the present application provides a photovoltaic support, which includes:

[0021] A bearing assembly as any one of the above;

[0022] A main shaft, which is installed on the bearing of the bearing assembly and is rotationally matched with the bearing seat of the bearing assembly;

[0023] A column, and the bearing seat of the bearing assembly is installed on the column.

[0024] According to the photovoltaic support of the present application, through the arrangement of the above-mentioned bearing assembly, the axial position limitation of the bearing relative to the bearing seat is realized, the risk of the bearing loosening, position shifting or falling off is reduced, thereby improving the stability and reliability of the photovoltaic support, and further maintaining the long-term stable operation of the photovoltaic system. Compared with the common bearing baffle solution, the number of parts required is reduced, the installation cost is reduced, the installation process is simplified, the installation efficiency is improved, and at the same time, by using the through-type assembly method of the limiting member, the bearing itself can assist the limiting member to resist external stress, reduce the risk of fatigue failure of the limiting member, extend the service life of the limiting member, and significantly reduce the maintenance frequency of the limiting member, improve the maintainability of the limiting member. Secondly, the through-type assembly method enables the limiting member to be applicable to bearings of different sizes and shapes, increases the diversity and flexibility of the bearing in the selection design, and thus expands the use range of the bearing assembly.

[0025] In a third aspect, the present application provides a photovoltaic system, which includes:

[0026] The photovoltaic support as described above;

[0027] A photovoltaic module, and the photovoltaic module is installed on the main shaft of the photovoltaic support.

[0028] In the photovoltaic system according to the present application, through the above-mentioned arrangement of the photovoltaic support, the axial position of the bearing relative to the bearing seat is restricted, reducing the risk of the bearing loosening, shifting in position, or falling off, thereby improving the stability and reliability of the photovoltaic support, and further maintaining the long-term stable operation of the photovoltaic system. Compared with the common bearing baffle solution, the number of components required is reduced, the installation cost is reduced, the installation process is simplified, and the installation efficiency is improved. At the same time, with the through-type assembly method of the limiting member, the bearing itself can assist the limiting member to resist external stress, reducing the risk of fatigue failure of the limiting member, extending the service life of the limiting member, and significantly reducing the maintenance frequency of the limiting member, improving the maintainability of the limiting member. Secondly, the through-type assembly method enables the limiting member to be applicable to bearings of different sizes and shapes, increasing the diversity and flexibility in the selection and design of bearings, thereby expanding the application range of the bearing assembly.

[0029] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0031] Figure 1 is one of the schematic structural diagrams of the bearing provided by the embodiment of the present application;

[0032] Figure 2 is one of the schematic structural diagrams of the photovoltaic support provided by the embodiment of the present application;

[0033] Figure 3 is another schematic structural diagram of the bearing provided by the embodiment of the present application;

[0034] Figure 4 is another schematic structural diagram of the photovoltaic support provided by the embodiment of the present application;

[0035] Figure 5 is yet another schematic structural diagram of the bearing provided by the embodiment of the present application;

[0036] Figure 6 is yet another schematic structural diagram of the photovoltaic support provided by the embodiment of the present application;

[0037] Figure 7 is still another schematic structural diagram of the bearing provided by the embodiment of the present application;

[0038] Figure 8 is still another schematic structural diagram of the photovoltaic support provided by the embodiment of the present application.

[0039] REFERENCE NUMERALS:

[0040] Photovoltaic support 10;

[0041] Bearing seat 11;

[0042] Bearing 12, first part 121, first boss 1211, second part 122, second boss 1221;

[0043] Position-limiting member 13, first position-limiting member 13a, second position-limiting member 13b, position-limiting portion 131;

[0044] Main shaft 14, column 15, column top seat 16. Specific embodiments

[0045] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0046] The present application discloses a bearing assembly applied to the photovoltaic support 10.

[0047] Reference will be made below Figures 1 - 8 to describe the bearing assembly according to the embodiments of the present application.

[0048] In some embodiments, as Figure 2 , Figure 4 , Figure 6 and Figure 8 shown, the bearing assembly includes: a bearing seat 11, a bearing 12, and a position-limiting member 13.

[0049] As Figure 2 , Figure 4 , Figure 6 and Figure 8 shown, the bearing 12 is pivotally mounted on the bearing seat 11. The bearing 12 is used to mount the main shaft 14 of the photovoltaic support 10, and the bearing 12 includes a first part 121 and a second part 122. One side of the first part 121 in the axial direction has a first boss 1211, and one side of the second part 122 in the axial direction has a second boss 1221. The first boss 1211 and the second boss 1221 protrude outward relative to the inner wall of the bearing seat 11.

[0050] The bearing seat 11 can be used to support and mount the bearing 12 and provide a rotating space for the bearing 12. Exemplarily, the bearing seat 11 may have a cylindrical or conical inner hole to cooperate with the outer ring of the bearing 12; the outer contour of the bearing seat 11 may be square, circular, or other shapes to adapt to different installation requirements.

[0051] The material of the bearing housing 11 may include, but is not limited to, cast iron, stainless steel, aluminum alloy, etc., and there is no limitation here.

[0052] For example, in some embodiments, the material of the bearing housing 11 is stainless steel.

[0053] The bearing 12 can be used to support the main shaft 14 of the photovoltaic support 10 and allow the main shaft 14 to freely rotate on a fixed axis.

[0054] The bearing 12 can be made of metal or plastic. Among them, the metal material may include, but is not limited to, high-carbon chromium bearing steel, stainless steel, cast iron, or aluminum-based alloy, etc., and the plastic material may include, but is not limited to, acetal, polyether ether ketone, polyoxymethylene, polytetrafluoroethylene, or phenolic resin, etc.

[0055] For example, in some embodiments, the bearing 12 can be made of plastic material.

[0056] To facilitate the assembly between the bearing 12, the bearing housing 11, and the main shaft 14, the bearing 12 can be circumferentially split into two parts, namely the first part 121 and the second part 122, and the first part 121 and the second part 122 are each half of the bearing 12. In other words, both the first part 121 and the second part 122 are generally semi-cylindrical.

[0057] The first part 121 and the second part 122 can be spliced end to end to form a circumferentially closed bearing 12, or the first part 121 and the second part 122 can be spaced apart to form a split-structured bearing 12.

[0058] For example, in some embodiments, as Figures 1 - 8 shown, the first part 121 and the second part 122 are spaced apart.

[0059] Specifically, the first part 121 and the second part 122 can be spaced apart in the vertical direction, also in the horizontal direction, or in other directions, and there is no limitation here.

[0060] For example, in some embodiments, as Figures 1 - 8 shown, the first part 121 and the second part 122 are spaced apart in the vertical direction.

[0061] The shape of the outer contour of the first boss 1211 can be arc-shaped, wavy, or bent, etc., and there is no limitation here.

[0062] For example, in some embodiments, as Figures 1 - 8 shown, the shape of the outer contour of the first boss 1211 is arc-shaped.

[0063] The shape of the outer contour of the second boss 1221 can be arc-shaped, wavy, bent, etc., without limitation here.

[0064] For example, in some embodiments, as Figures 1 - 8 shown, the shape of the outer contour of the second boss 1221 is arc-shaped.

[0065] As Figures 1 - 8 shown, the limiting member 13 penetrates at least one of the first part 121 and the second part 122, and the limiting member 13 has a limiting portion 131 protruding from the outer peripheral wall of the bearing 12; wherein, the first boss 1211 and the limiting portion 131 protruding from the outer peripheral wall of the first part 121 are respectively located on both axial sides of the bearing seat 11, and the second boss 1221 and the limiting portion 131 protruding from the outer peripheral wall of the second part 122 are respectively located on both axial sides of the bearing seat 11.

[0066] The limiting member 13 can be a long bar member. Specifically, the limiting member 13 can include but is not limited to split pins, bolts or rivets, etc., without limitation here.

[0067] For example, in some embodiments, as Figures 1 - 4 shown, the limiting member 13 is a split pin.

[0068] For example, in some other embodiments, as Figures 5 - 8 shown, the limiting member 13 is a bolt.

[0069] The length direction of the limiting member 13 can be parallel to the vertical direction, the horizontal direction or other directions, and the criterion for the arrangement direction of the limiting member 13 is not to interfere with the assembly between the main shaft 14 and the bearing 12.

[0070] The opening methods of the first part 121 and the second part 122 include but are not limited to mechanical drilling, laser opening, stamping opening or electrical discharge machining opening, etc., without limitation here.

[0071] The shape and size of the through holes on the first part 121 and the second part 122 can be designed according to the shape and size of the limiting member 13. Among them, the through holes on the first part 121 can include but are not limited to round holes, square holes or triangular holes, etc., and the through holes on the second part 122 can include but are not limited to round holes, square holes or triangular holes, etc.

[0072] For example, in some embodiments, the through hole on the first part 121 is a round hole, and the through hole on the first part 121 is a round hole.

[0073] In the related art, some bearings are provided with bearing baffles on the opposite side of the boss and the bearing baffles are fastened with bolts to prevent the bearings from slipping out. However, there are the following disadvantages in using this solution: on the one hand, it is necessary to add bearing baffles and corresponding fasteners, and the number of parts required is too large, resulting in an increase in installation costs; on the other hand, when the bearing baffle abuts against the bearing seat to play a limiting role, all the stresses received need to be borne by the fasteners. Under long-term use, the fasteners are extremely prone to fatigue failure, and there is also a risk that the fasteners themselves are not fastened in place, resulting in too short a service life of the fasteners and frequent replacement.

[0074] It can be understood that since the first boss 1211 and the limiting part 131 protruding from the outer peripheral wall of the first part 121 are respectively located on both sides of the bearing seat 11 in the axial direction, and the second boss 1221 and the limiting part 131 protruding from the outer peripheral wall of the second part 122 are respectively located on both sides of the bearing seat 11 in the axial direction, in this way, a limiting member 13 will be provided on the side of the first part 121 without the first boss 1211 to form a protruding limiting part 131. The first boss 1211 combined with the limiting part 131 protruding from the opposite side of the first part 121 can realize the axial limitation of the first part 121; similarly, a limiting member 13 will be provided on the side of the second part 122 without the second boss 1221 to form a protruding limiting part 131. The second boss 1221 combined with the limiting part 131 protruding from the opposite side of the second part 122 can realize the axial limitation of the second part 122. During the installation process of the bearing 12, it is only necessary to first position and arrange the first part 121 and the second part 122 at the corresponding positions of the bearing seat 11, and then pass each limiting member 13 through the corresponding part; during the disassembly process of the bearing 12, it is only necessary to first remove each limiting member 13 from the part through which it passes, and then detach the first part 121 and the second part 122 from the bearing seat 11. In addition, when the limiting part 131 is stressed, due to the assembly method of the limiting member 13 being installed in a penetrating manner, the bearing 12 itself can assist the limiting member 13 to resist the external stress driving the bearing 12 to move. Even if the limiting member 13 is slightly bent under long-term use, it does not affect its limiting effect, and during maintenance, it is only necessary to straighten the limiting member 13 using the corresponding tooling.

[0075] It should be noted that in the state where the bearing assembly is assembled, the limiting part 131 and the first boss 1211 can abut against the outer surface of the bearing seat 11, or a certain gap can be left for convenient installation, and the gap left should not be too large to prevent the axial movement space left for the bearing 12 from being too large and affecting the rotational stability of the main shaft 14.

[0076] The bearing assembly provided by the embodiment of the present application, through the settings of the above-mentioned first boss 1211, second boss 1221 and limiting member 13, realizes the axial position limitation of the bearing 12 relative to the bearing seat 11, reduces the risk of loosening, position deviation or detachment of the bearing 12, thereby improving the stability and reliability of the photovoltaic support 10, and further maintaining the long-term stable operation of the photovoltaic system. Compared with the common bearing 12 baffle solution, the number of parts required is reduced, the installation cost is reduced, the installation process is simplified, the installation efficiency is improved, and at the same time, by using the through-type assembly method of the limiting member 13, the bearing 12 itself can assist the limiting member 13 to resist external stress, reduce the risk of fatigue failure of the limiting member 13, extend the service life of the limiting member 13, and significantly reduce the maintenance frequency of the limiting member 13, improving the maintainability of the limiting member 13. Secondly, the through-type assembly method enables the limiting member 13 to be applicable to bearings 12 of different sizes and shapes, increasing the diversity and flexibility of the bearing 12 in the selection design, thereby expanding the application range of the bearing assembly.

[0077] In some embodiments, such as Figures 1 - 2 and Figures 7 - 8 shown, the limiting member 13 penetrates through the first part 121 and the second part 122.

[0078] The first part 121 and the second part 122 are spaced apart and arranged opposite to each other. The limiting member 13 penetrates through the first part 121 and the second part 122 at the same time. In other words, the through holes on the first part 121 and the through holes on the second part 122 are arranged opposite to each other. During installation, the limiting member 13 only needs to sequentially pass through the through holes on the first part 121 and the through holes on the second part 122. In this way, while the limiting member 13 realizes the limiting function, it also realizes the indirect connection between the first part 121 and the second part 122.

[0079] The bearing assembly provided by the embodiment of the present application, through the structural design that the limiting member 13 penetrates through the first part 121 and the second part 122, while the limiting member 13 realizes the axial limiting function, the first part 121 and the second part 122 are combined to form a more solid overall structure, effectively preventing the bearing 12 from radially deviating during rotation, and helping to reduce the risk of deformation or damage of the bearing 12 due to uneven stress or vibration during long-term use.

[0080] In some embodiments, such as Figures 1 - 2 shown, both ends of the limiting member 13 in the length direction have limiting portions 131.

[0081] In this embodiment, such as Figures 1 - 2As shown, when the limiting member 13 penetrates through the first part 121 and the second part 122, the first end of the limiting member 13 in the length direction protrudes from the first part 121 to form a limiting portion 131, and the second end of the limiting member 13 in the length direction protrudes from the second part 122 to form a limiting portion 131.

[0082] Wherein, the lengths of the limiting portion 131 at the first end of the limiting member 13 and the limiting portion 131 at the second end of the limiting member 13 may be equal or unequal.

[0083] In some other embodiments, as Figures 7 - 8 shown, one end of the limiting member 13 in the length direction has a limiting portion 131.

[0084] In the bearing assembly provided by the embodiments of the present application, through the structural design that both ends of the limiting member 13 in the length direction have limiting portions 131, limiting support can be provided simultaneously at two positions of the bearing 12. The dual limiting mechanism is more stable and reliable than a single limit, and can more effectively prevent the bearing 12 from shifting or moving axially and radially.

[0085] In some embodiments, as Figures 3 - 6 shown, a plurality of limiting members 13 are provided. The plurality of limiting members 13 include a first limiting member 13a and a second limiting member 13b. The first limiting member 13a penetrates through the first part 121, and the second limiting member 13b penetrates through the second part 122.

[0086] Wherein, "a plurality" means two or more. For example, in some embodiments, as Figures 3 - 4 shown, two limiting members 13 are provided.

[0087] For example, in some other embodiments, as Figures 5 - 6 shown, four limiting members 13 are provided.

[0088] The plurality of limiting members 13 can be divided into a first limiting member 13a and a second limiting member 13b. The first limiting member 13a and the first boss 1211 are distributed on opposite sides of the first part 121. The first boss 1211 combines with the limiting portion 131 of the first limiting member 13a on the opposite side to realize the axial limit of the first part 121; the second limiting member 13b and the second boss 1221 are distributed on opposite sides of the second part 122. The second boss 1221 combines with the limiting portion 131 of the second limiting member 13b on the opposite side to realize the axial limit of the second part 122.

[0089] The bearing assembly provided by the embodiment of the present application, through the above settings of the first limiting member 13a and the second limiting member 13b, the first limiting member 13a only needs to bear the limiting force of the first part 121, and the second limiting member 13b only needs to bear the limiting force of the second part 122, reducing the force-bearing burden of a single limiting member 13, improving the reliability and durability of the entire bearing assembly, and at the same time reducing the precision requirements for hole machining of the first part 121 and the second part 122, thereby reducing the processing difficulty.

[0090] In some embodiments, as Figures 3 - 4 shown, both ends of the first limiting member 13a in the length direction have limiting portions 131; both ends of the second limiting member 13b in the length direction have limiting portions 131.

[0091] In this embodiment, as Figures 3 - 4 shown, when the first limiting member 13a penetrates the first part 121 and the second limiting member 13b penetrates the second part 122, the first part 121 and the second part 122 are spaced apart and arranged opposite to each other. The first end of the first limiting member 13a protrudes from the first part 121 to form a limiting portion 131, and the second end of the first limiting member 13a in the length direction also protrudes from the first part 121 to form a limiting portion 131; the first end of the second limiting member 13b protrudes from the second part 122 to form a limiting portion 131, and the second end of the second limiting member 13b in the length direction also protrudes from the second part 122 to form a limiting portion 131.

[0092] Among them, the lengths of the limiting portion 131 at the first end of the first limiting member 13a and the limiting portion 131 at the second end of the first limiting member 13a may be equal or unequal; the lengths of the limiting portion 131 at the first end of the second limiting member 13b and the limiting portion 131 at the second end of the second limiting member 13b may be equal or unequal.

[0093] The bearing assembly provided by the embodiment of the present application, through the structural design that both ends of the above first limiting member 13a have limiting portions 131 and both ends of the second limiting member 13b have limiting portions 131, enables the first limiting member 13a and the second limiting member 13b to achieve axial limiting at two different positions respectively when inserted into the first part 121 and the second part 122. This double-locking mechanism greatly increases the connection strength between the limiting member 13 and the bearing 12, reduces loosening or falling off caused by vibration, impact or long-term use, and thus significantly improves the stability of the entire bearing assembly.

[0094] In some embodiments, as Figures 5 - 6As shown, one end of the first limiting member 13a in the length direction has a limiting portion 131, and the other end of the first limiting member 13a in the length direction is axially opposite to the second part 122; one end of the second limiting member 13b in the length direction has a limiting portion 131, and the other end of the first limiting member 13a in the length direction is axially opposite to the first part 121.

[0095] In this embodiment, as Figures 5 - 6 shown, when the first limiting member 13a penetrates the first part 121 and the second limiting member 13b penetrates the second part 122, the first part 121 and the second part 122 are spaced apart and arranged in a staggered manner. Specifically, the first part 121 and the second part 122 are axially offset by a certain distance. The first end of the first limiting member 13a protrudes radially outward from the first part 121 to form a limiting portion 131. The first boss 1211 and the limiting portion 131 of the first limiting member 13a on the opposite side together achieve the axial limitation of the first part 121. The second end of the first limiting member 13a protrudes radially inward from the first part 121. The protruding part of the second end of the first limiting member 13a and the second boss 1221 are on the same side of the second part 122. And when the second part 122 has a tendency to move axially in the direction close to the second boss 1221, the protruding part of the second end of the first limiting member 13a can abut against the second part 122; the first end of the second limiting member 13b protrudes radially inward from the second part 122. The protruding part of the first end of the second limiting member 13b and the first boss 1211 are on the same side of the first part 121. And when the first part 121 has a tendency to move axially in the direction close to the first boss 1211, the protruding part of the first end of the second limiting member 13b can abut against the first part 121. The second end of the second limiting member 13b protrudes radially outward from the second part 122 to form a limiting portion 131. The second boss 1221 and the limiting portion 131 of the second limiting member 13b on the opposite side together achieve the axial limitation of the second part 122.

[0096] For the bearing assembly provided in the embodiment of the present application, through the structural design that both ends of the first limiting member 13a protrude from the first part 121 and both ends of the second limiting member 13b protrude from the second part 122, the first end of the first limiting member 13a combined with the first boss 1211 can achieve the axial position constraint of the first part 121. The second end of the first limiting member 13a further restricts the axial offset of the second part 122. The first end of the second limiting member 13b further restricts the axial offset of the first part 121. The second end of the second limiting member 13b combined with the second boss 1221 can achieve the axial position constraint of the second part 122, maximizing the limiting effect of the first limiting member 13a and the second limiting member 13b.

[0097] In some embodiments, asFigures 1 - 4 As shown, the first boss 1211 and the second boss 1221 are located on the same side of the bearing 12.

[0098] Exemplarily, as Figures 1 - 4 shown, the first boss 1211 is located on the first axial side of the first part 121, the second boss 1221 is located on the first axial side of the second part 122, and the limiting member 13 is located on the second axial side of the bearing 12.

[0099] In some other embodiments, as Figures 5 - 8 shown, the first boss 1211 and the second boss 1221 are located on different sides of the bearing 12.

[0100] Exemplarily, as Figures 5 - 8 shown, the first boss 1211 is located on the first axial side of the first part 121, the second boss 1221 is located on the second axial side of the second part 122, and among the multiple limiting members 13, some limiting members 13 are located on the first side of the bearing 12, and the other part of the limiting members 13 is located on the second side of the bearing 12.

[0101] For the bearing assembly provided by the embodiments of the present application, through the relative position design of the above-mentioned first boss 1211 and second boss 1221, the first boss 1211 and the second boss 1221 can be assembled on the same side or on different sides, so that a foolproof design can be formed, which is convenient for assembly. At the same time, multiple assembly schemes for the first part 121 and the second part 122 are provided to be applicable to different usage scenarios, thereby expanding the applicable range of the bearing assembly.

[0102] In some embodiments, as Figures 1 - 4 shown, when multiple limiting members 13 are provided; among them, the multiple limiting members 13 are arranged at intervals along the radial direction of the bearing 12 on the same axial side of the bearing 12.

[0103] Multiple means two or more. Exemplarily, as Figures 1 - 4 shown, two limiting members 13 are provided, the first boss 1211 and the second boss 1221 are located on the first axial side of the bearing 12, and the two limiting members 13 are arranged at intervals along the radial direction of the bearing 12 on the second axial side of the bearing 12.

[0104] In some other embodiments, as Figures 5 - 8 shown, when multiple limiting members 13 are provided; among them, the multiple limiting members 13 are arranged at intervals along both the radial direction and the axial direction of the bearing 12 on both axial sides of the bearing 12.

[0105] Multiple means two or more. Exemplarily, as Figures 5 - 8As shown in the figure, four limiting members 13 are provided. The first boss 1211 is located on the first side of the bearing 12 along the axial direction, and the second boss 1221 is located on the second side of the bearing 12 along the axial direction. Among the four limiting members 13, two of the limiting members 13 are arranged at intervals along the radial direction of the bearing 12 on the first side of the bearing 12 along the axial direction, and the other two limiting members 13 are arranged at intervals along the radial direction of the bearing 12 on the second side of the bearing 12 along the axial direction. The distribution of the four limiting members 13 presents a diagonal symmetry of a square.

[0106] For the bearing assembly provided by the embodiment of the present application, through the layout design of the above-mentioned multiple limiting members 13, the multiple limiting members 13 can be arranged at intervals in a straight line on the same side, and can also be arranged at intervals in an array on different sides. An appropriate layout scheme can be selected according to the cross-sectional shape of the main shaft 14, the shape, material, and force-bearing conditions of the bearing 12, etc., thereby increasing the flexibility and diversity in the design of the bearing assembly.

[0107] The embodiments of the present application will be specifically described below from six different implementation perspectives.

[0108] I. Each limiting member 13 penetrates through the first part 121 and the second part 122. The multiple limiting members 13 are arranged on the same side, and the first boss 1211 and the second boss 1221 are arranged on the same side.

[0109] In this embodiment, as Figures 1 - 2 shown, the first part 121 and the second part 122 are arranged at intervals in the vertical direction and are oppositely arranged. The length directions of the multiple limiting members 13 are parallel to the vertical direction. Each limiting member 13 penetrates through the first part 121 and the second part 122 in sequence along the vertical direction. The multiple limiting members 13 are arranged at intervals in the horizontal direction, and limiting portions 131 are formed at both ends of each limiting member 13.

[0110] II. Among the multiple limiting members 13, a part penetrates through the first part 121, and the other part penetrates through the second part 122. The multiple limiting members 13 are arranged on the same side, and the first boss 1211 and the second boss 1221 are arranged on the same side.

[0111] In this embodiment, as Figures 3 - 4 shown, the first part 121 and the second part 122 are arranged at intervals in the vertical direction and are oppositely arranged. The length directions of the multiple limiting members 13 are parallel to the horizontal direction. The multiple limiting members 13 can be divided into a first limiting member 13a and a second limiting member 13b. The first limiting member 13a penetrates through the first part 121 in the horizontal direction, and limiting portions 131 are formed at both ends of the first limiting member 13a. The second limiting member 13b penetrates through the second part 122 in the horizontal direction, and limiting portions 131 are formed at both ends of the second limiting member 13b. The first limiting member 13a and the second limiting member 13b are located on the same side of the bearing 12 and are arranged at intervals in the vertical direction.

[0112] III. Among the multiple limiting members 13, a part penetrates the first part 121, and the other part penetrates the second part 122. The multiple limiting members 13 are arranged on different sides, and the first boss 1211 and the second boss 1221 are arranged on different sides.

[0113] In this embodiment, as Figures 5 - 6 shown, the first part 121 and the second part 122 are spaced apart in the vertical direction and are arranged with a certain distance offset. The length direction of the multiple limiting members 13 is parallel to the vertical direction. The multiple limiting members 13 can be divided into a first limiting member 13a and a second limiting member 13b. The first limiting member 13a penetrates the first part 121 in the vertical direction, and a limiting portion 131 is formed at the upper end of the first limiting member 13a in the vertical direction. The second limiting member 13b penetrates the second part 122 in the vertical direction, and a limiting portion 131 is formed at the lower end of the second limiting member 13b in the vertical direction. Limiting members 13 are provided on both axial sides of the bearing 12, and the multiple limiting members 13 on the same side are spaced apart in the horizontal direction.

[0114] IV. Each limiting member 13 penetrates both the first part 121 and the second part 122. The multiple limiting members 13 are arranged on different sides, and the first boss 1211 and the second boss 1221 are arranged on different sides.

[0115] In this embodiment, as Figures 7 - 8 shown, the first part 121 and the second part 122 are spaced apart in the vertical direction and are oppositely arranged. The length direction of the multiple limiting members 13 is parallel to the vertical direction. Each limiting member 13 sequentially penetrates the first part 121 and the second part 122 in the vertical direction. Limiting members 13 are provided on both axial sides of the bearing 12, and the multiple limiting members 13 on the same side are spaced apart in the horizontal direction, and the multiple limiting members 13 distributed on the side opposite to the first boss 1211 form a limiting portion 131 at the upper end in the vertical direction, and the multiple limiting members 13 distributed on the side opposite to the second boss 1221 form a limiting portion 131 at the lower end in the vertical direction.

[0116] V. Among the multiple limiting members 13, a part penetrates the first part 121 and is disposed in the second part 122, and the other part penetrates the second part 122 and is disposed in the first part 121. The first boss 1211 and the second boss 1221 are arranged on different sides.

[0117] In this embodiment, the plurality of limit members 13 can be divided into a third limit member 13 and a fourth limit member 13. The third limit member 13 and the first boss 1211 are distributed on opposite sides of the first part 121. The first end of the third limit member 13 protrudes from the first part 121 to form a limit portion 131. The first boss 1211 combines with the limit portion 131 of the third limit member 13 on the opposite side to achieve axial limitation of the first part 121. The second end of the third limit member 13 is installed inside the second part 122 and does not protrude from the second part 122. The fourth limit member 13 and the second boss 1221 are distributed on opposite sides of the second part 122. The first end of the fourth limit member 13 is installed inside the first part 121 and does not protrude from the first part 121. The second end of the fourth limit member 13 protrudes from the first part 121 to form a limit portion 131. The second boss 1221 combines with the limit portion 131 of the fourth limit member 13 on the opposite side to achieve axial limitation of the second part 122.

[0118] VI. Among the plurality of limit members 13, a part penetrates the first part 121, and another part penetrates the second part 122. The plurality of limit members 13 are arranged on the same side, and the first boss 1211 and the second boss 1221 are arranged on different sides.

[0119] In this embodiment, the first part 121 and the second part 122 are spaced apart and oppositely arranged in the vertical direction. The length direction of the plurality of limit members 13 is parallel to the horizontal direction. The plurality of limit members 13 can be divided into a first limit member 13a and a second limit member 13b. The first limit member 13a penetrates the first part 121 in the horizontal direction, and limit portions 131 are formed at both ends of the first limit member 13a. The second limit member 13b penetrates the second part 122 in the horizontal direction, and limit portions 131 are formed at both ends of the second limit member 13b. The first limit member 13a and the second limit member 13b are located on different sides of the bearing 12.

[0120] It should be noted that as Figure 1 shown, the above vertical direction and horizontal direction are both perpendicular to and intersect with the axial direction of the bearing 12, and the horizontal direction belongs to a certain direction in the radial direction of the bearing 12.

[0121] The present application also discloses a photovoltaic support 10.

[0122] In some embodiments, as Figure 2 、 Figure 4 、 Figure 6 and Figure 8 shown, the photovoltaic support 10 includes: a main shaft 14, a column 15, and a bearing assembly as described in any one of the above.

[0123] The main shaft 14 is installed on the bearing 12 of the bearing assembly, and the main shaft 14 is rotationally engaged with the bearing seat 11 of the bearing assembly; the bearing seat 11 of the bearing assembly is installed on the column 15.

[0124] As shown Figure 2 , Figure 4 , Figure 6 and Figure 8 shown, the photovoltaic support 10 further includes a column top seat 16, and the bearing seat 11 of the bearing assembly can be mounted on the column 15 through the column top seat 16.

[0125] Exemplarily, as Figure 2 , Figure 4 , Figure 6 and Figure 8 shown, the column top seat 16 can be in an inverted U shape. Specifically, the two side plates of the column top seat 16 can be fixedly connected to the two outer walls of the column 15, the top plate of the column top seat 16 can be separated from the upper wall surface of the column 15, and the bottom of the bearing seat 11 can be fixedly connected to the top plate of the column top seat 16 by bolt connection or other connection means.

[0126] It should be noted that the photovoltaic support 10 of the present application is a rigid photovoltaic support with a tracking function, and the application scenarios of the photovoltaic support 10 include but are not limited to residential houses, commercial buildings, industrial facilities, or agricultural science and technology greenhouses, etc., and there is no limitation here.

[0127] The photovoltaic support 10 provided by the embodiment of the present application, through the above setting of the bearing assembly, realizes the axial position limitation of the bearing 12 relative to the bearing seat 11, reduces the risk of the bearing 12 loosening, position deviation or falling off, thereby improving the stability and reliability of the photovoltaic support 10, and further maintaining the long-term stable operation of the photovoltaic system. Compared with the common bearing 12 baffle solution, the number of parts required is reduced, the installation cost is reduced, the installation process is simplified, the installation efficiency is improved, and at the same time, by using the through-type assembly method of the limiting member 13, the bearing 12 itself can assist the limiting member 13 to resist external stress, reduce the risk of fatigue failure of the limiting member 13, extend the service life of the limiting member 13, and significantly reduce the maintenance frequency of the limiting member 13, improve the maintainability of the limiting member 13. Secondly, the through-type assembly method enables the limiting member 13 to be applicable to bearings 12 of different sizes and shapes, increases the diversity and flexibility of the bearing 12 in the selection design, and thus expands the use range of the bearing assembly.

[0128] The present application also discloses a photovoltaic system.

[0129] In some embodiments, the photovoltaic system includes: a photovoltaic module and the photovoltaic support 10 as described above.

[0130] The photovoltaic module is installed on the main shaft 14 of the photovoltaic support 10.

[0131] The photovoltaic system provided by the embodiment of the present application realizes the axial position limitation of the bearing 12 relative to the bearing seat 11 through the setting of the above-mentioned photovoltaic support 10, reduces the risk of loosening, position offset or falling off of the bearing 12, thereby improving the stability and reliability of the photovoltaic support 10, and further maintaining the long-term stable operation of the photovoltaic system. Compared with the common bearing 12 baffle scheme, the number of required parts is reduced, the installation cost is reduced, the installation process is simplified, and the installation efficiency is improved. At the same time, by using the through-type assembly method of the limiting member 13, the bearing 12 itself can assist the limiting member 13 to resist external stress, reduce the risk of fatigue failure of the limiting member 13, extend the service life of the limiting member 13, and significantly reduce the maintenance frequency of the limiting member 13, improving the maintainability of the limiting member 13. Secondly, the through-type assembly method enables the limiting member 13 to be applicable to bearings 12 of different sizes and shapes, increasing the diversity and flexibility of the bearing 12 in the selection design, thereby expanding the use range of the bearing assembly.

[0132] The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0133] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0134] In the description of the present application, the "first feature", "second feature" may include one or more of such features.

[0135] In the description of the present application, the meaning of "a plurality" is two or more.

[0136] In the description of the present application, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0137] In the description of the present application, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature.

[0138] In the description of this specification, descriptions with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0139] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A bearing assembly, applied to a photovoltaic support, characterized in that Comprising: Bearing housing; A bearing pivotally mounted on the bearing housing for mounting the main shaft of the photovoltaic support, and including a first part and a second part, one side of the first part along the axial direction has a first boss, one side of the second part along the axial direction has a second boss, and the first boss and the second boss protrude outward relative to the inner wall of the bearing housing; A limiting member penetrating at least one of the first part and the second part, and the limiting member has a limiting portion protruding from the outer peripheral wall of the bearing; wherein, The first boss and the limiting portion protruding from the outer peripheral wall of the first part are respectively located on both sides of the bearing housing along the axial direction, and the second boss and the limiting portion protruding from the outer peripheral wall of the second part are respectively located on both sides of the bearing housing along the axial direction.

2. The bearing assembly according to claim 1, wherein, The limiting member penetrates the first part and the second part.

3. The bearing assembly according to claim 2, wherein, Both ends of the limiting member along the length direction have the limiting portion.

4. The bearing assembly according to claim 1, wherein A plurality of the limiting members are provided, and the plurality of limiting members include a first limiting member and a second limiting member. The first limiting member penetrates the first part, and the second limiting member penetrates the second part.

5. The bearing assembly according to claim 4, characterized in that, Both ends of the first limiting member along the length direction have the limiting portion; both ends of the second limiting member along the length direction have the limiting portion.

6. The bearing assembly according to claim 4, wherein, One end of the first limiting member along the length direction has the limiting portion, and the other end of the first limiting member along the length direction is axially opposite to the second part; one end of the second limiting member along the length direction has the limiting portion, and the other end of the first limiting member along the length direction is axially opposite to the first part.

7. The bearing assembly according to any one of claims 1-6, characterized in that, The first boss and the second boss are located on the same side of the bearing; Or, The first boss and the second boss are located on different sides of the bearing.

8. The bearing assembly according to any one of claims 1-6, characterized in that, In the case where a plurality of the limiting members are provided; wherein, The plurality of limiting members are radially separated along the bearing and arranged on the same side of the bearing along the axial direction; Or, The plurality of limiting members are radially and axially separated along the bearing and arranged on both sides of the bearing along the axial direction.

9. A photovoltaic support, characterized in that, Comprising: The bearing assembly according to any one of claims 1-8; A main shaft mounted on the bearing of the bearing assembly and rotatably engaged with the bearing housing of the bearing assembly; A column, and the bearing housing of the bearing assembly is mounted on the column.

10. A photovoltaic system, characterized in that, Comprising: The photovoltaic support according to claim 9; A photovoltaic module, and the photovoltaic module is mounted on the main shaft of the photovoltaic support.

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