Photovoltaic transmission assembly and photovoltaic tracking support

Abstract

The utility model relates to the technical field of photovoltaic equipment, and discloses a photovoltaic transmission assembly and a photovoltaic tracking support, and the photovoltaic transmission assembly comprises a transmission shaft, a bearing main body and a limiting part. The bearing body is provided with an installation space penetrating through the axial direction of the bearing body and used for containing the transmission shaft, the limiting piece is fixedly connected with the transmission shaft and is at least partially clamped in the bearing body, the clamping face of the limiting piece and the bearing body is a plane, the contact area of the limiting piece and the bearing body is increased, and the limiting piece and the bearing body are connected more stably and reliably. The photovoltaic tracking support comprises a stand column, a driving mechanism, a bearing ring seat and the photovoltaic transmission assembly, the bearing body is installed in a containing space of the bearing ring seat, the transmission shaft is connected with the driving mechanism, the transmission shaft rotates through the driving mechanism, then the bearing body is driven to rotate, and through arrangement of the limiting piece, the bearing body is driven to rotate. The situation that the bearing body and the transmission shaft operate asynchronously can be effectively avoided, and therefore high accuracy and high stability of the photovoltaic tracking support are guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic equipment, and further relates to a photovoltaic transmission assembly and a photovoltaic tracking support. BACKGROUND

[0002] In the field of photovoltaic power generation, a photovoltaic tracking support system adjusts the angle of a solar panel to track the movement of the sun, thereby improving energy capture efficiency. However, in the prior art, the photovoltaic tracking support has problems in the joint between the transmission shaft (such as the main shaft and the synchronous shaft) and the bearing body, so that during operation, the two will produce relative movement and cannot be synchronized. This asynchronization leads to unintended local contact between the bearing body and the transmission shaft, which may damage the bearing or the transmission shaft and reduce the reliability and service life of the equipment. This technical defect not only affects the stability of the photovoltaic power generation system, but also increases the maintenance cost and limits the wider application of photovoltaic energy. CONTENT OF THE UTILITY MODEL

[0003] In view of the above technical problems, the purpose of the present application is to provide a photovoltaic transmission assembly and a photovoltaic tracking support, which ensure that the transmission shaft and the bearing body can operate synchronously and avoid local contact and damage caused by asynchronization.

[0004] In order to achieve the above purpose, the present application provides a photovoltaic transmission assembly, comprising:

[0005] a transmission shaft;

[0006] a bearing body having an installation space passing through the axial direction thereof, wherein the transmission shaft is arranged in the installation space;

[0007] a limiting piece fixedly connected with the transmission shaft and at least partially clamped in the bearing body, wherein the clamping surface of the limiting piece and the bearing body is a plane.

[0008] In some embodiments, the limiting piece comprises a limiting bottom plate, a clamping groove matched with the limiting bottom plate is arranged on the bearing body, the limiting bottom plate is arranged on the outer periphery of the transmission shaft and fixedly connected with the transmission shaft, the clamping groove is arranged on the inner periphery of the bearing body, the limiting bottom plate is at least partially clamped in the clamping groove, and the matching surface of the limiting bottom plate and the clamping groove is a plane structure.

[0009] In some embodiments, the limiting piece further comprises at least one limiting protrusion, the limiting protrusion is arranged on one side surface of the limiting bottom plate and fixedly connected with the transmission shaft through the limiting bottom plate;

[0010] The bearing body is provided with a limiting groove corresponding to the limiting protrusion, the limiting protrusion is inserted into the limiting groove, and the matching surface of the limiting protrusion and the limiting groove is a planar structure.

[0011] In some embodiments, the limiting groove communicates with the clamping groove, the clamping groove penetrates through the double-side end surface of the bearing body along the axial direction of the bearing body, and extends towards the outer circumferential surface of the bearing body along the radial direction of the bearing body; the limiting groove penetrates through the outer circumferential surface of the bearing body along the radial direction of the bearing body.

[0012] In some embodiments, the limiting bottom plate and the limiting protrusion are both cuboids, the two ends of the limiting bottom plate extend out of the clamping groove, and the limiting bottom plate is fixedly connected with the transmission shaft through fasteners.

[0013] In some embodiments, the circumferential surface of the bearing body is provided with a plurality of lightening holes, and the lightening holes penetrate through the side wall of the bearing body.

[0014] In some embodiments, the number of the limiting members is two, and the two limiting members are symmetrically distributed along the central axis of the bearing body, and each limiting member comprises two limiting protrusions.

[0015] In some embodiments, the inner circumferential contour of the bearing body matches the outer circumferential contour of the transmission shaft, and the outer circumferential cross-sectional shape of the transmission shaft is any one of a circle, a polygon, and an irregular figure.

[0016] Another aspect of the present application also provides a photovoltaic tracking support, comprising:

[0017] a column;

[0018] a driving mechanism;

[0019] a bearing ring seat having an accommodation space, and the bearing ring seat is connected to the column;

[0020] The photovoltaic transmission assembly described above, the bearing body of the photovoltaic transmission assembly is installed in the accommodation space, and the transmission shaft of the photovoltaic transmission assembly is connected with the driving mechanism to generate rotation under the driving action of the driving mechanism.

[0021] In some embodiments, the transmission shaft is a main shaft, and the main shaft is in transmission connection with the first power output end of the driving mechanism.

[0022] Alternatively, the transmission shaft is a synchronous shaft, and the synchronous shaft is in transmission connection with the second power output end of the driving mechanism.

[0023] Compared with the prior art, the photovoltaic transmission assembly and the photovoltaic tracking support provided by the application have the following beneficial effects:

[0024] The relative movement of the transmission shaft and the bearing body is effectively limited by the limiting piece; the clamping surface of the limiting piece and the bearing body is provided as a plane, the contact area of the limiting piece and the bearing body is increased, the connection between the limiting piece and the bearing body is more stable and reliable, thereby avoiding local contact and damage to the bearing caused by asynchronous operation of the transmission shaft and the bearing body, realizing synchronous rotation and integral connection of the transmission shaft and the bearing body, enhancing the structural strength and stability of the photovoltaic transmission assembly, and significantly improving the operation efficiency and reliability of the photovoltaic tracking support. BRIEF DESCRIPTION OF DRAWINGS

[0025] The above-mentioned characteristics, technical features, advantages and implementation modes of the application will be further described in the following in a clear and understandable manner in combination with the preferred embodiments and the accompanying drawings.

[0026] Figure 1 is a schematic diagram of the overall structure of the photovoltaic transmission assembly in an embodiment of the application;

[0027] Figure 2 is a schematic diagram of the overall structure of the photovoltaic transmission assembly in an embodiment of the application;

[0028] Figure 3 is a schematic diagram of the overall structure of the photovoltaic transmission assembly in an embodiment of the application;

[0029] Figure 4 is a schematic diagram of the overall structure of the photovoltaic transmission assembly in an embodiment of the application;

[0030] Figure 5 is a schematic diagram of the overall structure of the photovoltaic transmission assembly in an embodiment of the application;

[0031] Figure 6 is a schematic diagram of the overall structure of the photovoltaic transmission assembly in an embodiment of the application;

[0032] Figure 7 is a schematic diagram of the overall structure of the photovoltaic transmission assembly in an embodiment of the application.

[0033] BRIEF DESCRIPTION OF DRAWINGS: transmission shaft 1; bearing body 2; mounting space 200; weight-reducing hole 201; clamping groove 21; bottom wall 211; side wall 212; limiting groove 22; shoulder structure 23; inner side wall 24; limiting piece 3; limiting bottom plate 31; first surface 311; second surface 312; third surface 313; fourth surface 314; limiting protrusion 32. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0035] In order to make the drawing simple, only the parts related to the application are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one".

[0036] It should be further understood that the term "and / or" used in the present application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0037] In this paper, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation to the present application.

[0039] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0040] Currently, the photovoltaic tracking support as a key component in the solar photovoltaic power generation system, its main function is to support and fix the photovoltaic module, and can automatically adjust the angle according to the position of the sun to maximize the capture of solar energy.

[0041] However, in the prior art, the photovoltaic tracking support has the problem of the interface between the transmission shaft (such as the main shaft, the synchronous shaft) and the bearing body during operation. This interface assembly problem causes relative movement between the two during operation, thereby failing to achieve precise synchronization, resulting in unintended local contact between the bearing body and the transmission shaft during operation, which can damage the bearing or the transmission shaft, reducing the reliability and service life of the equipment.

[0042] In view of the current problems, with reference to the drawings attached to the specification Figure 1 The photovoltaic transmission assembly provided by the present application can ensure the synchronous operation of the transmission shaft and the bearing body, thereby improving the performance and reliability of the photovoltaic tracking system.

[0043] With reference to the drawings attached to the specification Figure 1 and Figure 2 The photovoltaic transmission assembly provided by the present application comprises a transmission shaft 1, a bearing body 2, and a limiting piece 3. The bearing body 2 is designed with an installation space 200 penetrating its axial direction to accommodate the transmission shaft 1, the transmission shaft 1 passes through the bearing body 2 and drives the bearing body 2 to rotate synchronously, and the installation space 200 is specifically a through hole penetrating the bearing body 2, the contour of the through hole is adapted to the cross-sectional shape of the transmission shaft 1, and in this embodiment, the cross-sectional shape of the transmission shaft 1 is a pentagon, and the installation space 200 corresponds to a pentagonal hole penetrating the bearing body 2.

[0044] In order to solve the problem caused by the relative movement between the transmission shaft 1 and the bearing body 2 in the prior art, the limiting piece 3 is provided. The limiting piece 3 is arranged between the bearing body 2 and the transmission shaft 1, and its main function is to limit the relative movement between the two, ensuring that they maintain consistent relative positions during operation.

[0045] This design in this embodiment can effectively avoid local contact caused by relative movement, reduce damage to the bearing body 2 or the transmission shaft 1, thereby prolonging the service life of the equipment and improving the stability of the entire photovoltaic system.

[0046] Specifically, the limiting piece 3 is fixedly connected with the transmission shaft 1 and at least partially clamped in the bearing body 2, and the clamping surfaces of the two are planes. Compared with the traditional point contact or line contact clamping method, the contact area of the limiting structure and the bearing body 2 is significantly increased, effectively dispersing the force, so that the connection between the limiting piece 3 and the bearing body 1 is more stable and reliable.

[0047] Based on the content of the embodiment, one implementation is to use additional connecting pieces to simultaneously connect the transmission shaft 1 and the limiting piece 3. Specifically, the transmission shaft 1 and the limiting piece 3 are both provided with connecting parts or connecting holes, which cooperate with the connecting pieces to achieve fixed connection between the two. For example, the corresponding hole positions on the transmission shaft 1 and the limiting piece 3 can be fastened by bolts, pins or other fasteners to achieve fastening connection of the two. In this way, the limiting piece 3 is detachable, and when maintenance or replacement of components is required, the limiting piece 3 can be conveniently detached from the transmission shaft 1 to adapt to different installation conditions and operating requirements.

[0048] In another implementation, the limiting piece 3 and the transmission shaft 1 are arranged in an undetachable manner to achieve an integrated structure, which is simpler and faster to assemble and fix. For example, the limiting piece 3 is directly integrally formed with the transmission shaft 1, which saves additional connecting pieces and enhances the overall structural strength and stability. In actual application, suitable limiting pieces 3 can be selected for setting according to specific working environment and load conditions.

[0049] Optionally, the outer peripheral cross section of the transmission shaft 1 is designed in one of a circular shape, a polygonal shape or an irregular shape, and the irregular shape can be a shape formed by alternating arc segments and straight line segments. The inner peripheral contour of the bearing body 2 is designed to correspond to the shape of the outer peripheral cross section of the transmission shaft 1, so that the transmission shaft 1 is kept in correct alignment inside the bearing body 2, avoiding eccentric operation, thereby prolonging the service life of the assembly and improving energy efficiency.

[0050] In one embodiment, the limiting piece 3 includes a limiting bottom plate 31, which is arranged on the outer periphery of the transmission shaft 1 and is clamped with the bearing body 2. The bearing body 2 is provided with a clamping groove 21 cooperating with the limiting bottom plate 31, the clamping groove 21 extends along the axial direction of the bearing body 2, and the limiting bottom plate 31 is clamped in the clamping groove 21. The profiles of the limiting bottom plate 31 and the clamping groove 21 are adapted to each other, and the fixed connection of the two is achieved by clamping, so that the transmission shaft 1 and the bearing body 2 are relatively fixed.

[0051] It can be understood that, through the clamping design of the limiting bottom plate 31 and the clamping groove 21 in the embodiment, a compact and stable connection mode is provided, which not only simplifies the assembly process, but also enhances the stability of the structure. The close fit of the clamping structure ensures the precise positioning of the transmission shaft 1 inside the bearing body 2, reduces wear and damage caused by relative movement, and thus prolongs the service life of the assembly.

[0052] Further, the bearing body 2 is made of plastic material, which not only reduces the weight of the whole assembly, but also reduces the production cost. The clamping groove 21 is formed by one-piece injection molding with the bearing body 2, which simplifies the production process and improves the production efficiency. The elastic properties of the plastic material allow the clamping groove 21 to deform slightly when clamped, so as to be buckled to the limiting bottom plate 31 on the transmission shaft 1, and then restore to the original state, ensuring the close fit between the transmission shaft 1 and the bearing body 2.

[0053] In the present embodiment, as shown in Figure 5 and Figure 6 , the limiting bottom plate 31 includes a first face 311, a second face 312, a third face 313 and a fourth face 314, the first face 311 and the second face 312 are oppositely arranged, the third face 313 and the fourth face 314 are oppositely arranged, the clamping groove 21 is axially provided on the inner side wall 24 of the bearing body 2 and extends a certain distance from the inner side wall 24 to the outer peripheral surface of the bearing body 2 in the radial direction, thereby providing accommodation and limiting space for the limiting bottom plate 31. At the same time, as shown in Figure 3 and Figure 4 , the clamping groove 21 includes a bottom wall 211 and two oppositely arranged side walls 212, the first face 311 is adapted to the outer peripheral surface of the transmission shaft 1, the second face 312 at least partially abuts the bottom wall 211, the third face 313 and the fourth face 314 correspondingly abut the two side walls 212, respectively. Specifically, the shape of the first face 311 is adapted to the shape of the outer peripheral surface of the transmission shaft 1, the second face 312, the third face 313 and the fourth face 314 are respectively flat, and correspondingly, the bottom wall 211 and the two side walls 212 of the clamping groove 21 are also respectively flat, that is, the limiting bottom plate 31 and the clamping groove 21 are in plane contact, which can provide larger contact area and force than arc contact, thereby ensuring the stability of the limiting piece 3. The first face 311 is flush with the inner side wall 24 of the bearing body 2, so as not to affect the cooperation between the transmission shaft 1 and the bearing body 2, and ensure the normal rotation of the two.

[0054] In one embodiment, the number of limiting bottom plates 31 is two (correspondingly, the number of limiting pieces 3 is two), and the number of clamping grooves 21 provided on the bearing body 2 is also two, the two limiting bottom plates 31 are symmetrically distributed along the central axis of the transmission shaft 1, and the two clamping grooves 21 are symmetrically distributed along the central axis of the bearing body 2.

[0055] Reference can be made to the accompanying Figure 2 and Figure 7The overall structure of the embodiment is designed to be symmetrically distributed, ensuring uniform support of the transmission shaft 1 inside the bearing body 2, reducing the deviation or wear caused by asymmetric load. Moreover, this symmetric distribution helps to evenly disperse the force when subjected to external impact or vibration, thereby improving the anti-vibration performance and reliability of the entire assembly. In other embodiments, the number of limiting bottom plates 31 can be adjusted as needed to adapt to different application scenarios and load requirements. For example, multiple limiting bottom plates 31 can be distributed along the circumference of the transmission shaft 1, providing more support points and limiting points, which can be adjusted according to the size and load requirements of the bearing body 2 to ensure uniform support and limiting effect throughout the circumference.

[0056] In one embodiment, based on the above embodiment, as shown in FIG. 4, the limiting member 3 further comprises at least one limiting protrusion 32, and the bearing body 2 is provided with a limiting groove 22 corresponding to the limiting protrusion 32. Through the cooperation of the limiting protrusion 32 and the limiting groove 22, the axial displacement of the bearing body 2 is limited. Figure 3 and Figure 5 As shown in FIG. 4, the limiting member 3 further comprises at least one limiting protrusion 32, and the bearing body 2 is provided with a limiting groove 22 corresponding to the limiting protrusion 32. Through the cooperation of the limiting protrusion 32 and the limiting groove 22, the axial displacement of the bearing body 2 is limited.

[0057] The limiting protrusion 32 is arranged on one side surface of the limiting bottom plate 31 and is fixedly connected with the transmission shaft 1 through the limiting bottom plate 31. The number of limiting grooves 22 corresponds to the limiting protrusions 32, ensuring that the limiting protrusions 32 can be accurately clamped into the limiting grooves 22, realizing the relative fixation between the transmission shaft 1 and the bearing body 2. Among them, the limiting protrusion 32 can be designed as a cylindrical, conical or other suitable shape to adapt to the corresponding limiting groove 22.

[0058] Specifically, in one aspect, the clamping of the limiting protrusion 32 and the limiting groove 22 limits the relative movement between the transmission shaft 1 and the bearing body 2, especially the axial displacement of the bearing body 2, effectively avoiding the axial displacement of the bearing body 2 due to factors such as vibration or temperature change during long-term operation, thereby preventing it from being pulled out of the bearing ring seat, ensuring long-term stable operation. Preferably, the limiting protrusion 32 is a protruding cuboid structure, which cooperates with the limiting groove 22 of the bearing body 2 to increase the contact area with the limiting groove 22, further improve the limiting ability, so that the bearing body 2 is stably located at a specific position in the axial direction, avoiding the displacement of the bearing body 2 in the axial direction.

[0059] On the other hand, the clamping of the limiting protrusions 32 and the limiting grooves 22 also limits the circumferential displacement of the bearing body 2. Since there may be a slight gap between the transmission shaft 1 and the bearing body 2, if there is no circumferential limitation, the bearing body 2 may deviate during rotation, causing unnecessary friction and wear on the outside of the transmission shaft 1. In this embodiment, through the precise clamping of the limiting protrusions 32 and the limiting grooves 22, the correct position of the bearing body 2 on the transmission shaft 1 can be ensured, reducing friction and wear, thereby prolonging the service life of the assembly. Moreover, the clamping of the limiting protrusions 32 and the limiting grooves 22 increases the contact area between the transmission shaft 1 and the bearing body 2, enhancing the connection strength between the transmission shaft 1 and the bearing body 2, and also helping to more evenly distribute the load and reduce local stress concentration, thereby reducing the risk of wear and damage caused by uneven load.

[0060] In addition, in the embodiment shown in the drawings, each limiting bottom plate 31 is provided with two limiting protrusions 32, and a corresponding number of limiting grooves 22 are provided on the bearing body 2 corresponding to each limiting bottom plate 31. By increasing the number of limiting protrusions 32 and limiting grooves 22, the reliability of the limiting member 3 can be increased to some extent, and multiple contact points can more evenly distribute the load and stress, reducing stress concentration at a single contact point and thereby reducing wear and improving durability. In addition, multiple limiting protrusions 32 and limiting grooves 22 help to form a more stable connection between the transmission shaft 1 and the bearing body 2, reducing relative displacement caused by external impact or vibration.

[0061] However, the number of limiting protrusions 32 and limiting grooves 22 needs to be optimized within a certain range. If the number is too large, it may cause inconvenience in structure installation, increase the complexity of manufacturing and assembly, and also increase the cost. Therefore, when designing, the reliability and installation convenience need to be considered comprehensively to select an appropriate number of limiting protrusions 32 and limiting grooves 22.

[0062] Based on the above embodiment, optionally, the limiting bottom plate 31 and the limiting protrusion 32 are designed in the shape of a cuboid, and the two ends of the limiting protrusion 32 are flush with the edges of the limiting bottom plate 31, so that the limiting protrusion 32 and the limiting bottom plate 31 form a simple and continuous surface, facilitating manufacturing and assembly.

[0063] When the transmission shaft 1 is installed in the installation space 200 of the bearing body 2, the clamping of the clamping groove 21 and the limiting bottom plate 31 provides additional support for the bearing body 2, ensuring its stability and reliability during operation. At the same time, the clamping of the limiting groove 22 and the limiting protrusion 32 enhances the stability of the transmission shaft 1 relative to the bearing body 2, limiting the axial and circumferential displacement, thereby avoiding the bearing body 2 from coming out or deviating due to factors such as vibration or temperature change during long-term operation.

[0064] Further, based on the above, the clamping groove 21 can be designed to penetrate both sides of the bearing body 2, one side, or not at all, according to the size of the limiting bottom plate 31. In the embodiment shown in the drawings, the clamping groove 21 is double-sided, so that the limiting bottom plate 31 supports the bearing body 2 in the axial direction, further preventing displacement.

[0065] In addition, the limiting bottom plate 31 is a flat plate structure, providing a stable foundation so that the limiting protrusions 32 can be evenly distributed on its surface, and the contact surface between the limiting bottom plate 31 and the clamping groove 21 is more flat, which helps to increase the contact area between the two, thereby enhancing the limiting effect and reducing the risk of local stress concentration due to uneven contact surface, reducing the risk of wear and damage. The two ends of the limiting bottom plate 31 extend out of the clamping groove 21 to be fixed to the transmission shaft 1 by fasteners, i.e. the length of the limiting bottom plate 31 in the axial direction is greater than the width of the bearing body 1 in the axial direction, thereby providing installation space for the fasteners, and the flat plate structure of the limiting bottom plate 31 also makes the installation surface of the fasteners on the limiting bottom plate 31 a flat surface, improving installation convenience and reducing installation difficulty.

[0066] In one embodiment, as shown in Figure 3 and Figure 4 The circumferential surface of the bearing body 2 is designed with a plurality of weight-reducing holes 201, some of which are in communication with the limiting groove 22, forming a through-hole structure in the circumferential direction of the bearing body 2, and the limiting protrusions 32 can further be clamped into these weight-reducing holes 201 in communication with the limiting groove 22, thereby increasing the contact area between the transmission shaft 1 and the bearing body 2 and optimizing the connection between the transmission shaft 1 and the bearing body 2, improving stability and firmness. In addition, the through-hole structure design also facilitates assembly and maintenance work, as the limiting member 3 can be directly observed and adjusted through the through-hole. At the same time, the design of the weight-reducing holes 201 helps to reduce the weight of the bearing body 2, reduce material costs, and the arrangement of the weight-reducing holes 201 increases the surface area of the bearing body 2, thereby increasing the contact area with the external environment, which is conducive to heat dissipation.

[0067] In one embodiment, according to another aspect of the present application, the present application further provides a photovoltaic tracking support, comprising a column, a driving mechanism, a bearing ring seat, and a photovoltaic transmission assembly as described above.

[0068] The bearing housing has a receiving space and is connected to the column. The bearing body 2 of the photovoltaic transmission assembly is installed within the receiving space of the bearing housing, while the transmission shaft 1 is connected to the drive mechanism. Under the driving action of the drive mechanism, the transmission shaft 1 rotates, thereby causing the bearing body 2 to rotate relative to the bearing housing. The limiting component 3 in the photovoltaic transmission assembly effectively prevents the bearing body 2 and the transmission shaft 1 from operating asynchronously, thus ensuring the high accuracy and stability of the photovoltaic tracking bracket. Furthermore, reducing asynchronous operation also lowers system wear and failure rate, extends the service life of the photovoltaic tracking bracket, and reduces maintenance costs.

[0069] It should also be noted that in this embodiment, the drive shaft 1 can be a main shaft or a synchronous shaft. When the drive shaft 1 is the main shaft, it is directly connected to the first power output end of the drive mechanism to realize the synchronous rotation of the main shaft and the bearing body 2. At the same time, the photovoltaic module installed on the main shaft also rotates synchronously to ensure that the photovoltaic module can follow the trajectory of the sun and improve the solar energy capture efficiency. When the drive shaft 1 is used as a synchronous shaft and is connected to the second power output end of the drive mechanism, it realizes the synchronous rotation of the synchronous shaft and the bearing body 2. The synchronous shaft not only rotates itself, but also transmits power to other driven points of the photovoltaic tracking bracket to realize multi-point synchronous drive.

[0070] Furthermore, the bearing body 2 protrudes radially outward to form a shoulder structure 23, on the attached... Figure 3 The shoulder structure 23 shown is located on one side edge of the bearing body 2, so that the bearing ring can limit its axial displacement in at least one direction through the shoulder structure 23. In contrast, in other embodiments, the shoulder structure 23 can be located on both sides of the bearing body 2 at the same time, which further enhances the axial stability of the bearing body 2 and effectively limits the axial displacement of the bearing body 2 in both directions, preventing the bearing body 2 from being accidentally displaced during operation.

[0071] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A photovoltaic transmission assembly, comprising: Comprising: a transmission shaft; a bearing body having an installation space axially through which the transmission shaft is arranged; a limiting member fixedly connected with the transmission shaft and at least partially clamped in the bearing body, the clamping surface of the limiting member and the bearing body being planar.

2. The photovoltaic transmission assembly according to claim 1, wherein the limiting member comprises a limiting bottom plate, a clamping groove corresponding to the limiting bottom plate is arranged on the bearing body, the limiting bottom plate is arranged on the outer periphery of the transmission shaft and fixedly connected with the transmission shaft, the clamping groove is arranged on the inner periphery of the bearing body, the limiting bottom plate is at least partially clamped in the clamping groove, and the clamping surface of the limiting bottom plate and the clamping groove is planar.

3. The photovoltaic transmission assembly according to claim 2, wherein the limiting member further comprises at least one limiting protrusion arranged on one side surface of the limiting bottom plate and fixedly connected with the transmission shaft through the limiting bottom plate; a limiting groove corresponding to the limiting protrusion is arranged on the bearing body, the limiting protrusion is inserted into the limiting groove, and the clamping surface of the limiting protrusion and the limiting groove is planar.

4. The photovoltaic transmission assembly according to claim 3, wherein the limiting groove is in communication with the clamping groove, the clamping groove penetrates through the double-side end surface of the bearing body along the axial direction of the bearing body and extends along the radial direction of the bearing body towards the outer peripheral surface of the bearing body, and the limiting groove penetrates through the outer peripheral surface of the bearing body along the radial direction of the bearing body; 5. The photovoltaic transmission assembly of claim 4, wherein, the limiting bottom plate and the limiting protrusion are both cuboids, and the two ends of the limiting bottom plate extend out of the clamping groove and are fixedly connected with the transmission shaft through fasteners.

6. The photovoltaic transmission assembly according to claim 3, wherein a plurality of weight-reducing holes are arranged on the peripheral surface of the bearing body and penetrate through the side wall of the bearing body.

7. The photovoltaic transmission assembly according to any one of claims 3-6, wherein the number of limiting members is two, the two limiting members are symmetrically distributed along the axial line of the bearing body, and each limiting member comprises two limiting protrusions.

8. The photovoltaic transmission assembly according to any one of claims 1-6, wherein the inner peripheral contour of the bearing body matches the outer peripheral contour of the transmission shaft, and the outer peripheral cross-sectional shape of the transmission shaft is circular or polygonal.

9. A photovoltaic tracking support, characterized in that, Comprising: a column; a driving mechanism; a bearing ring seat having an accommodation space, and the bearing ring seat is connected to the column; the photovoltaic transmission assembly according to any one of claims 1-8, the bearing body of the photovoltaic transmission assembly is arranged in the accommodation space, and the transmission shaft of the photovoltaic transmission assembly is connected with the driving mechanism to generate rotation under the driving action of the driving mechanism.

10. The photovoltaic tracking support according to claim 9, wherein the transmission shaft is a main shaft, and the main shaft is in transmission connection with the first power output end of the driving mechanism; or ​ The transmission shaft is a synchronous shaft, and the synchronous shaft is in transmission connection with the second power output end of the driving mechanism.

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