Bilateral buckle type bearing assembly for solar photovoltaic tracking support

Abstract

The invention provides a double-side buckle type bearing assembly for a solar photovoltaic tracking support, which comprises two bearing sub-parts with the same structure, each bearing sub-part comprises a main body part, two ends of each main body part are respectively provided with a buckle part, and the two bearing sub-parts are mutually buckled through the respective buckle parts; the buckling part comprises a first buckling unit and a second buckling unit; the first buckle unit comprises a first connecting block, a first clamping block and a first L-shaped hook groove. The second buckle unit comprises a second connecting block, a second clamping block and a second L-shaped hook groove. The projection plane of the second clamping block on the first buckle unit is located in the area of the first L-shaped hook groove. No matter a spherical bearing or a cylindrical bearing, through the inclined boss and the groove designed at the left end and the right end of the plastic bearing, no additional limiting part is needed, and the two bearing parts are combined into an integral bearing assembly which does not move or fall off only through material deformation of the plastic bearing. The rotating and slipping phenomenon between the bearing and the main shaft is avoided; meanwhile, the mounting steps are simplified.

Description

Technical field

[0001] The present invention relates to the technical field of photovoltaic tracking brackets, and in particular to a double-sided snap-on bearing assembly for a solar photovoltaic tracking bracket. [Background Technology]

[0002] Photovoltaic tracking systems have experienced rapid development in recent years, significantly contributing to increasing the total power generation of photovoltaic power plants. Plastic bearings, as a key component of photovoltaic tracking systems, play a crucial role in their stable operation due to their wear resistance, self-lubrication, and corrosion resistance. In the photovoltaic system, split-up upper and lower bearing designs have long been widely used, whether for spherical or cylindrical plastic bearings. For polygonal spindles, although the cross-section of the bearing's through-hole design matches the spindle's cross-section, the upper and lower bearings are not integral. Furthermore, dimensional errors in actual machining and installation can lead to gaps between the spindle and the plastic bearing, posing a significant risk of slippage between the spindle and the upper bearing. Current industry solutions often involve adding connectors or designing a plug-in assembly structure on the bearing to combine the upper and lower bearings into a single unit. However, adding connectors not only increases material costs but also compromises installation efficiency. The plug-in assembly structure does not restrict the freedom of bearing insertion direction, especially for cylindrical bearings. The resulting assembly lacks integrity and still presents the risk of movement in the insertion direction. Therefore, cylindrical bearings often have additional flange ribs or clamp ribs in the bearing insertion direction to limit and fix the bearings. However, this method further exacerbates the problems of rising costs and complicated installation.

[0003] In view of this, the inventors of this case conducted in-depth research on the above-mentioned issues, which led to the creation of this case. [Summary of the invention]

[0004] The present invention aims to solve the technical problems existing in the plastic bearings in the prior art, and provides a bilateral snap-on bearing assembly for a solar photovoltaic tracking bracket. Regardless of whether it is a spherical bearing or a cylindrical bearing, the inclined bosses and grooves designed on the left and right ends of the plastic bearing do not require additional bolts or other limiting parts. Only through the deformation of the material of the plastic bearing itself, the two bearing components are combined into a whole and non-moving and falling-off bearing assembly, avoiding the rotational slippage between the bearing and the main shaft while simplifying the installation steps.

[0005] The present invention is implemented as follows: a bilateral snap-on bearing assembly for a solar photovoltaic tracking bracket, comprising two bearing sub-components with identical structures, the bearing sub-components comprising a main body, with snap-on parts provided at both ends of the main body, and the two bearing sub-components being able to snap together through their respective snap-on parts; the snap-on parts comprising a first snap-on unit and a second snap-on unit; the first snap-on unit comprising a first connecting block, a first clamping block and a first L-shaped hook groove, and the second snap-on unit comprising a second connecting block, a second clamping block and a second L-shaped hook groove; one side of the first connecting block and the first clamping block is integrally arranged with the main body, and the other side is integrally arranged with the second connecting block; the projection surface of the second clamping block on the first snap-on unit is located in the area of ​​the first L-shaped hook groove.

[0006] Furthermore, the surface of the first clamping block is sequentially formed with an oblique groove, a first circular arc transition surface, and a first oblique boss, the oblique groove is connected to the first L-shaped hook groove, and the oblique groove and the first L-shaped hook groove are arranged toward the outside of the bearing component; the surface of the second clamping block is sequentially formed with a flat groove, a second circular arc transition surface, and a second oblique boss, the flat groove is connected to the second L-shaped hook groove, and the flat groove and the second L-shaped hook groove are arranged toward the inside of the bearing component.

[0007] Furthermore, the bearing component is a plastic bearing component.

[0008] Furthermore, the two plastic bearing components are snapped together to form a snap-on bearing assembly; the snap-on bearing assembly includes a first end face and a second end face, and a polygonal cavity is formed from the first end face toward the second end face, which passes through the snap-on bearing assembly, and the polygonal cavity includes multiple planes, and adjacent planes form an inner angle.

[0009] Furthermore, the outer surface of the snap-on bearing assembly is spherical.

[0010] Furthermore, a first groove is formed on the first end surface at an inner corner of the polygonal cavity, and a second groove is formed on the second end surface at an inner corner of the polygonal cavity.

[0011] Furthermore, the polygonal cavity is any one of a regular octagonal cavity, a regular heptagonal cavity, a regular hexagonal cavity, a regular pentagonal cavity, and a regular quadrilateral cavity.

[0012] Furthermore, the outer surface of the snap-on bearing assembly is cylindrical.

[0013] Furthermore, a single-sided flange is provided on the end surface of the plastic bearing component, and the single-sided flange is located at one end of the plastic bearing component close to the first connecting block.

[0014] Furthermore, a plurality of weight-reducing holes are provided on the plane, and the plurality of weight-reducing holes are distributed in an array.

[0015] The advantages of the present invention are:

[0016] 1. The snap-on bearing assembly of the present invention achieves bilateral interlocking through two bearing components with identical structures and their symmetrically arranged snap-on parts. The snap-on parts of the two bearing components have the same structure, and the standardized design makes the two bearing components interchangeable, eliminating the need for direction identification, simplifying the production and assembly process, and improving installation efficiency. The first snap-on unit, the second snap-on unit, and the main body are integrally formed to enhance the structural integrity of the snap-on part, avoid stress concentration problems caused by split connections, and extend service life. The second clamping block is projected in the first L-shaped hook groove area to achieve longitudinal spatial misalignment between the second clamping block and the first clamping block, ensure precise alignment of the snap-on part, and improve assembly reliability. Inclined bosses and grooves are designed on the left and right ends of the bearing component, so that the two bearing components can be combined into a whole and non-moving and non-falling bearing assembly without the need for additional bolts or other limiting parts, only by deforming the material of the plastic bearing component itself, thereby avoiding rotational slippage between the bearing seat and the main shaft. At the same time, the installation steps are simplified, the convenience of disassembly and assembly is improved, and material and labor costs are saved.

[0017] 2. Example 1 is a double-sided snap-on plastic ball bearing assembly. Its spherical structure provides universal rotation capability to meet the multi-angle adjustment requirements of photovoltaic tracking brackets. The smooth surface transition reduces stress concentration points and reduces the risk of cracking. Grooves are set at the inner corners of the first and second end faces. The grooves avoid thin-walled areas and disperse the stress at the inner corners, significantly reducing the risk of cracking in thin-walled areas. Without increasing costs or weakening the overall strength of the bearing, the effective contact area between the double-sided snap-on plastic ball bearing assembly and the main shaft is guaranteed, solving the problem of cracking in the overly thin areas of the spherical snap-on bearing assembly. At the same time, the multiple grooves make the first and second end faces resemble petals as a whole. The two sides work together to make the two end faces of the spherical snap-on bearing assembly have a plum blossom opening shape. The plum blossom opening design enhances strength while maintaining beauty, taking into account both functionality and appearance.

[0018] 3. Example 2 is a cylindrical double-sided snap-on plastic bearing assembly, which has a single-sided flange on the end face. The single-sided flange limits the axial displacement of the cylindrical double-sided snap-on plastic bearing assembly in the bearing seat to prevent slipping; the single-sided design avoids redundant structure and maintains the advantage of lightweight.

Brief Description of the Drawings

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the connection structure between the bearing assembly and the main shaft in the present invention.

[0021] Figure 2 It is a structural schematic diagram of the bearing assembly in Example 1.

[0022] Figure 3It is a structural diagram of the bearing components in Example 1.

[0023] Figure 4 It is a cross-sectional view of the bearing component along the first snap unit in Example 1.

[0024] Figure 5 It is a cross-sectional view of the bearing component along the second snap unit in Example 1.

[0025] Figure 6 This is one of the side views of the bearing assembly in Example 1.

[0026] Figure 7 1 is a top view of the bearing assembly in Example 1.

[0027] Figure 8 This is the second side view of the bearing assembly in Example 1.

[0028] Figure 9 This is one of the state diagrams when the two bearing components are locked with each other in the two embodiments.

[0029] Figure 10 This is one of the state diagrams when the two bearing components are locked with each other in the two embodiments.

[0030] Figure 11 This is one of the state diagrams when the two bearing components are locked with each other in the two embodiments.

[0031] Figure 12 It is a structural schematic diagram of the bearing assembly in Example 2.

[0032] Figure 13 It is a cross-sectional view of the bearing component along the first snap unit in the second embodiment.

[0033] Figure 14 It is a cross-sectional view of the bearing component along the second snap unit in the second embodiment.

[0034] Figure 15 This is a structural diagram of the bearing component in the second embodiment with a single-sided flange.

[0035] Figure markings: bearing assembly 1000, main shaft 2000, bearing sub-component 100, main body 1, snap part 2, first snap unit 21, first connecting block 211, first clamping block 212, first L-shaped hook groove 213, inclined groove 214, first circular arc transition surface 215, first inclined boss 216, second snap unit 22, second connecting block 221, second clamping block 222, second L-shaped hook groove 223, flat groove 224, second circular arc transition surface 225, second inclined boss 226, first end face 3, first groove 31, second end face 4, second groove 41, polygonal cavity 5, plane 51, inner angle 52, weight reduction hole 53, single-sided flange 6. [Specific implementation method]

[0036] In order to better understand the technical solution of the present invention, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0037] It should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of these embodiments and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. In addition, the terms "first," "second," and the like are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features defined as "first," "second," and the like may explicitly or implicitly include one or more of such features.

[0038] Example 1

[0039] As attached Figure 1-11 As shown, the snap-on bearing assembly 1000 of this embodiment is a double-sided snap-on plastic spherical bearing assembly 1000. It combines the advantages of high strength, lightweight, and easy installation. It solves the problems of bearing cracking, slipping, and high costs in photovoltaic tracking brackets, significantly improving the reliability and cost-effectiveness of photovoltaic bracket systems. This double-sided snap-on plastic spherical bearing assembly 1000 of this embodiment is used to mate with the main shaft 2000. This embodiment provides a bilateral snap-on bearing assembly 1000 for a solar photovoltaic tracking bracket, comprising two bearing sub-components 100 with identical structures. The bearing sub-component 100 comprises a main body 1, with snap-on portions 2 provided at each end of the main body 1. The two bearing sub-components 100 can be snapped together through their respective snap-on portions 2. The snap-on portion 2 comprises a first snap-on unit 21 and a second snap-on unit 22. The first snap-on unit 21 comprises a first connecting block 211, a first clamping block 212 and a first L-shaped hook groove 213, and the second snap-on unit 22 comprises a second connecting block 221, a second clamping block 222 and a second L-shaped hook groove 223. One side of the first connecting block 211 and the first clamping block 212 is integrally provided with the main body 1, and the other side is integrally provided with the second connecting block 221. The projection surface of the second clamping block 222 on the first snap-on unit 21 is located in the area of ​​the first L-shaped hook groove 213.

[0040] The snap-on bearing assembly 1000 of this embodiment achieves bilateral interlocking through two structurally identical bearing components 100 and their symmetrically arranged snap-on portions 2, which has the following beneficial effects:

[0041] 1. The buckle portions 2 of the two bearing components 100 have the same structure. The standardized design makes the two bearing components 100 interchangeable, eliminating the need for direction identification, simplifying the production and assembly process, and improving installation efficiency.

[0042] 2. The first snap unit 21, second snap unit 22, and main body 1 are integrally formed, enhancing the structural integrity of the snap unit 2, avoiding stress concentration caused by separate connections, and extending service life. The second clamping block 222 is projected onto the first L-shaped hook groove 213, achieving longitudinal spatial misalignment between the second clamping block 222 and the first clamping block 212, ensuring precise alignment of the snap unit 2 and improving assembly reliability.

[0043] 3. The left and right ends of the bearing component 100 are designed with inclined bosses and grooves, so that the two bearing components 100 can be combined into a whole and non-moving bearing component 1000 by simply deforming the material of the plastic bearing component 1000 without the need for additional bolts or other limiting parts, thereby avoiding rotational slippage between the bearing seat and the main shaft 2000, simplifying the installation steps, improving the convenience of disassembly and assembly, and saving material and labor costs.

[0044] Preferably, as attached Figure 4-5 As shown, the surface of the first clamping block 212 is sequentially formed with an oblique groove 214, a first arcuate transition surface 215, and a first oblique projection 216. The oblique groove 214 communicates with the first L-shaped hook groove 213, and the oblique groove 214 and the first L-shaped hook groove 213 are positioned toward the exterior of the bearing sub-component 100. The surface of the second clamping block 222 is sequentially formed with a flat groove 224, a second arcuate transition surface 225, and a second oblique projection 226. The flat groove 224 communicates with the second L-shaped hook groove 223, and the flat groove 224 and the second L-shaped hook groove 223 are positioned toward the interior of the bearing sub-component 100. The outward communication between the oblique groove 214 and the first L-shaped hook groove 213 forms a guide channel, facilitating the sliding and positioning of the second clamping block 222 and simplifying assembly. The inward communication between the flat groove 224 and the second L-shaped hook groove 223 forms a complementary guide, limiting lateral displacement of the snap portion 2 and preventing post-assembly movement. This simplifies assembly and significantly improves the reliability of the connection. The interference fit between the first inclined boss 216 and the second inclined boss 226 relies on the elastic deformation of plastic to ensure a tight fit after being fastened together, without the need for additional fixing parts, thus reducing material costs.

[0045] Preferably, the bearing assembly 100 is a plastic bearing assembly 100, which allows it to deform and achieve an interference fit. The bearing assembly 100 is made of plastic, which has self-lubricating properties, reducing friction loss and extending the operating life of the bearing assembly 1000 in the photovoltaic mount. Plastic is also highly corrosion-resistant, adapting to complex outdoor environments and reducing maintenance frequency. The lightweight design reduces the overall weight of the mount and reduces the load requirements on the supporting structure.

[0046] Preferably, as attached Figure 6-8 As shown, two plastic bearing components 100 are snapped together to form a snap-in bearing assembly 1000. The snap-in bearing assembly 1000 includes a first end face 3 and a second end face 4. A polygonal cavity 5 is formed from the first end face 3 toward the second end face 4, extending through the snap-in bearing assembly 1000. The polygonal cavity 5 includes multiple flat surfaces 51, with adjacent flat surfaces 51 forming an internal angle 52. The polygonal cavity 5, formed by snapping together the two plastic bearing components 100, matches the cross-sectional shape of the spindle 2000, increasing the contact area and preventing localized wear caused by uneven pressure distribution.

[0047] Preferably, the outer surface of the snap-on bearing assembly 1000 is spherical, meaning this embodiment is a double-sided snap-on plastic spherical bearing assembly 1000. The spherical structure provides universal rotation, adapting to the multi-angle adjustment requirements of the photovoltaic tracking bracket; the smooth surface transition reduces stress concentration points and reduces the risk of cracking.

[0048] Preferably, the first end face 3 is provided with a first groove 31 at the inner corner 52 of the polygonal cavity 5, and the second end face 4 is provided with a second groove 41 at the inner corner 52 of the polygonal cavity 5. The area between the plane 51 and the outer wall of the spherical snap-in bearing assembly 1000 is a thick-walled area; the area between the inner corner 52 and the outer wall of the spherical snap-in bearing assembly 1000 is a thin-walled area, and the grooves on the end faces transition in an arc shape between the thick-walled area and the thin-walled area. The first end face 3 and the second end face 4 are provided with grooves at the inner corner 52 (i.e., grooves are provided at both ends of the thin-walled area). The grooves avoid the thin-walled area, disperse the stress at the inner corner 52, and significantly reduce the risk of cracking in the thin-walled area. Without increasing the cost and weakening the overall strength of the bearing, the effective contact area between the snap-in bearing assembly 1000 and the main shaft 2000 is guaranteed, thereby solving the problem of cracking in the overly thin area of ​​the spherical snap-in bearing assembly 1000. At the same time, the design of multiple grooves makes the first end face 3 and the second end face 4 look like petals as a whole. The two sides work together to make the two end faces of the spherical snap-on bearing assembly 1000 have a plum blossom opening shape. The plum blossom opening design enhances strength while maintaining beauty, taking into account both functionality and appearance.

[0049] Preferably, the polygonal cavity 5 is any one of a regular octagonal cavity, a regular heptagonal cavity, a regular hexagonal cavity, a regular pentagonal cavity, and a regular quadrilateral cavity. The shape of the polygonal cavity 5 is any polygon or special shape, which is compatible with the shape of the main shaft 2000.

[0050] Preferably, a plurality of weight-reducing holes 53 are formed on the plane 51, and the plurality of weight-reducing holes 53 are arranged in an array. The weight-reducing holes 53 are arranged at equal intervals to evenly distribute stress and avoid local strength weakening, thereby reducing material consumption and production costs while maintaining the structural rigidity of the bearing assembly 1000.

[0051] In this embodiment, as shown in the attached Figure 9-11 As shown, for the sake of convenience, the snap-in bearing assembly 1000 includes two first bearing components 100A and a second bearing component 100B with identical structures; the first bearing component 100A includes a first snap-in portion 2A and a second snap-in portion 2B; the second bearing component 100B includes a third snap-in portion 2C that cooperates with the first snap-in portion 2A and a fourth snap-in portion 2D that cooperates with the second snap-in portion 2B. The assembly process of the snap-on bearing assembly 1000 of this embodiment is as follows: When the first snap-on portion 2A and the third snap-on portion 2C are assembled, an interference fit occurs between the second inclined boss 226 of the first snap-on portion 2A and the first inclined boss 216 of the third snap-on portion 2C. This interference fit continues due to the elastic deformation of the plastic material until the second arcuate transition surface 225 of the first snap-on portion 2A slides past the first arcuate transition surface 215 of the third snap-on portion 2C. At this point, the second inclined boss 226 of the first snap-on portion 2A is highly aligned with the oblique groove 214 of the third snap-on portion 2C, and the oblique groove 214 of the first snap-on portion 2A is highly aligned with the second inclined boss 226 of the third snap-on portion 2C. Similarly, the second snap-on portion 2B and the fourth snap-on portion 2D at the other end engage in the same manner. After engagement, the first bearing subassembly 100A and the second bearing subassembly 100B are prevented from rotating relative to each other or moving left or right relative to each other. At the same time, the flat groove 224 of the first snap-fit ​​part 2A does not fit with the first inclined boss 216 of the third snap-fit ​​part 2C, and the first inclined boss 216 of the first snap-fit ​​part 2A does not fit with the flat groove 224 of the third snap-fit ​​part 2C, which can avoid the problem that if both places fit together, the joint surface of the bearing split will be too constrained and unable to be assembled.

[0052] Example 2

[0053] As attached Figure 1 、 9As shown in Figure 15, the snap-on bearing assembly 1000 of this embodiment is a cylindrical, double-sided snap-on plastic bearing assembly 1000. It combines the advantages of high strength, lightweight, and easy installation. It solves the problems of bearing cracking, slipping, and high costs in photovoltaic tracking brackets, significantly improving the reliability and cost-effectiveness of photovoltaic bracket systems. This cylindrical, double-sided snap-on plastic bearing assembly 1000 of this embodiment is designed to mate with a main shaft. This embodiment provides a bilateral snap-on bearing assembly 1000 for a solar photovoltaic tracking bracket, comprising two bearing sub-components 100 with identical structures. The bearing sub-component 100 comprises a main body 1, with snap-on portions 2 provided at each end of the main body 1. The two bearing sub-components 100 can be snapped together through their respective snap-on portions 2. The snap-on portion 2 comprises a first snap-on unit 21 and a second snap-on unit 22. The first snap-on unit 21 comprises a first connecting block 211, a first clamping block 212 and a first L-shaped hook groove 213, and the second snap-on unit 22 comprises a second connecting block 221, a second clamping block 222 and a second L-shaped hook groove 223. One side of the first connecting block 211 and the first clamping block 212 is integrally provided with the main body 1, and the other side is integrally provided with the second connecting block 221. The projection surface of the second clamping block 222 on the first snap-on unit 21 is located in the area of ​​the first L-shaped hook groove 213.

[0054] The snap-on bearing assembly 1000 of this embodiment achieves bilateral interlocking through two structurally identical bearing components 100 and their symmetrically arranged snap-on portions 2, which has the following beneficial effects:

[0055] 1. The buckle portions 2 of the two bearing components 100 have the same structure. The standardized design makes the two bearing components 100 interchangeable, eliminating the need for direction identification, simplifying the production and assembly process, and improving installation efficiency.

[0056] 2. The first snap unit 21, second snap unit 22, and main body 1 are integrally formed, enhancing the structural integrity of the snap unit 2, avoiding stress concentration caused by separate connections, and extending service life. The second clamping block 222 is projected onto the first L-shaped hook groove 213, achieving longitudinal spatial misalignment between the second clamping block 222 and the first clamping block 212, ensuring precise alignment of the snap unit 2 and improving assembly reliability.

[0057] 3. The left and right ends of the bearing component 100 are designed with inclined bosses and grooves, so that the two bearing components 100 can be combined into a whole and non-moving bearing component 1000 by simply deforming the material of the plastic bearing component 1000 without the need for additional bolts or other limiting parts, thereby avoiding rotational slippage between the bearing seat and the main shaft 2000, simplifying the installation steps, improving the convenience of disassembly and assembly, and saving material and labor costs.

[0058] Preferably, as attached Figure 13-14As shown, the surface of the first clamping block 212 is sequentially formed with an oblique groove 214, a first arcuate transition surface 215, and a first oblique projection 216. The oblique groove 214 communicates with the first L-shaped hook groove 213, and the oblique groove 214 and the first L-shaped hook groove 213 are positioned toward the exterior of the bearing sub-component 100. The surface of the second clamping block 222 is sequentially formed with a flat groove 224, a second arcuate transition surface 225, and a second oblique projection 226. The flat groove 224 communicates with the second L-shaped hook groove 223, and the flat groove 224 and the second L-shaped hook groove 223 are positioned toward the interior of the bearing sub-component 100. The outward communication between the oblique groove 214 and the first L-shaped hook groove 213 forms a guide channel, facilitating the sliding and positioning of the second clamping block 222 and simplifying assembly. The inward communication between the flat groove 224 and the second L-shaped hook groove 223 forms a complementary guide, limiting lateral displacement of the snap portion 2 and preventing post-assembly movement. This simplifies assembly and significantly improves the reliability of the connection. The interference fit between the first inclined boss 216 and the second inclined boss 226 relies on the elastic deformation of plastic to ensure a tight fit after being fastened together, without the need for additional fixing parts, thus reducing material costs.

[0059] Preferably, the bearing assembly 100 is a plastic bearing assembly 100, which allows it to deform and achieve an interference fit. The bearing assembly 100 is made of plastic, which has self-lubricating properties, reducing friction loss and extending the operating life of the bearing assembly 1000 in the photovoltaic mount. Plastic is also highly corrosion-resistant, adapting to complex outdoor environments and reducing maintenance frequency. The lightweight design reduces the overall weight of the mount and reduces the load requirements on the supporting structure.

[0060] Preferably, as attached Figure 15 As shown, two plastic bearing components 100 are snapped together to form a snap-in bearing assembly 1000. The snap-in bearing assembly 1000 includes a first end face 3 and a second end face 4. A polygonal cavity 5 is formed from the first end face 3 toward the second end face 4, extending through the snap-in bearing assembly 1000. The polygonal cavity 5 includes multiple flat surfaces 51, with adjacent flat surfaces 51 forming an internal angle 52. The polygonal cavity 5, formed by snapping together the two plastic bearing components 100, matches the cross-sectional shape of the spindle 2000, increasing the contact area and preventing localized wear caused by uneven pressure distribution.

[0061] Preferably, in this embodiment, the first end surface 3 and the second end surface 4 are planes.

[0062] Preferably, the polygonal cavity 5 is any one of a regular octagonal cavity, a regular heptagonal cavity, a regular hexagonal cavity, a regular pentagonal cavity, and a regular quadrilateral cavity.

[0063] Preferably, the outer surface of the snap-in bearing assembly 1000 is cylindrical. This embodiment is a cylindrical double-sided snap-in plastic bearing assembly.

[0064] Preferably, the end surface of the plastic bearing subassembly 100 is provided with a single-sided flange 6, which is located at the end of the plastic bearing subassembly 100 near the first connecting block 211. The single-sided flange 6 limits the axial displacement of the bearing assembly 1000 within the bearing seat, preventing slippage; the single-sided design avoids redundant structure and maintains the lightweight advantage.

[0065] Preferably, a plurality of weight-reducing holes 53 are formed on the plane 51, and the plurality of weight-reducing holes 53 are arranged in an array. The weight-reducing holes 53 are arranged at equal intervals to evenly distribute stress and avoid local strength weakening, thereby reducing material consumption and production costs while maintaining the structural rigidity of the bearing assembly 1000.

[0066] In this embodiment, as shown in the attached Figure 9-11 As shown, for the sake of convenience, the snap-in bearing assembly 1000 includes two first bearing components 100A and a second bearing component 100B with identical structures; the first bearing component 100A includes a first snap-in portion 2A and a second snap-in portion 2B; the second bearing component 100B includes a third snap-in portion 2C that cooperates with the first snap-in portion 2A and a fourth snap-in portion 2D that cooperates with the second snap-in portion 2B. The assembly process of the snap-on bearing assembly 1000 of this embodiment is as follows: When the first snap-on portion 2A and the third snap-on portion 2C are assembled, an interference fit occurs between the second inclined boss 226 of the first snap-on portion 2A and the first inclined boss 216 of the third snap-on portion 2C. This interference fit continues due to the elastic deformation of the plastic material until the second arcuate transition surface 225 of the first snap-on portion 2A slides past the first arcuate transition surface 215 of the third snap-on portion 2C. At this point, the second inclined boss 226 of the first snap-on portion 2A is highly aligned with the oblique groove 214 of the third snap-on portion 2C, and the oblique groove 214 of the first snap-on portion 2A is highly aligned with the second inclined boss 226 of the third snap-on portion 2C. Similarly, the second snap-on portion 2B and the fourth snap-on portion 2D at the other end engage in the same manner. After engagement, the first bearing subassembly 100A and the second bearing subassembly 100B are prevented from rotating relative to each other or moving left or right relative to each other. At the same time, the flat groove 224 of the first snap-fit ​​part 2A does not fit with the first inclined boss 216 of the third snap-fit ​​part 2C, and the first inclined boss 216 of the first snap-fit ​​part 2A does not fit with the flat groove 224 of the third snap-fit ​​part 2C, which can avoid the problem that if both places fit together, the joint surface of the bearing split will be too constrained and unable to be assembled.

[0067] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A double-sided snap-on bearing assembly for a solar photovoltaic tracking bracket, characterized by: It comprises two bearing sub-components with the same structure, the bearing sub-components comprising a main body, with snap parts provided at both ends of the main body, and the two bearing sub-components can be snapped together through their respective snap parts; the snap parts comprise a first snap unit and a second snap unit; the first snap unit comprises a first connecting block, a first clamping block and a first L-shaped hook groove, and the second clamping unit comprises a second connecting block, a second clamping block and a second L-shaped hook groove; one side of the first connecting block and the first clamping block is integrally arranged with the main body, and the other side is integrally arranged with the second connecting block; the projection surface of the second clamping block on the first clamping unit is located in the area of ​​the first L-shaped hook groove.

2. The double-sided snap-on bearing assembly for a solar photovoltaic tracking bracket according to claim 1, characterized in that: The surface of the first clamping block is sequentially formed with an oblique groove, a first circular arc transition surface, and a first oblique boss, the oblique groove is connected to the first L-shaped hook groove, and the oblique groove and the first L-shaped hook groove are arranged toward the outside of the bearing component; the surface of the second clamping block is sequentially formed with a flat groove, a second circular arc transition surface, and a second oblique boss, the flat groove is connected to the second L-shaped hook groove, and the flat groove and the second L-shaped hook groove are arranged toward the inside of the bearing component.

3. The double-sided snap-on bearing assembly for a solar photovoltaic tracking bracket according to claim 2, characterized in that: The bearing component is a plastic bearing component.

4. The double-sided snap-on bearing assembly for a solar photovoltaic tracking bracket according to claim 3, characterized in that: The two plastic bearing components are snapped together to form a snap-on bearing assembly; the snap-on bearing assembly includes a first end face and a second end face, and a polygonal cavity is formed from the first end face toward the second end face, which passes through the snap-on bearing assembly, and the polygonal cavity includes multiple planes, and adjacent planes form an inner angle.

5. The double-sided snap-on bearing assembly for a solar photovoltaic tracking bracket according to claim 4, characterized in that: The outer surface of the snap-in bearing assembly is spherical.

6. The double-sided snap-on bearing assembly for a solar photovoltaic tracking bracket according to claim 5, characterized in that: The first end surface is provided with a first groove at an inner corner of the polygonal cavity, and the second end surface is provided with a second groove at an inner corner of the polygonal cavity.

7. The double-sided snap-on bearing assembly for a solar photovoltaic tracking bracket according to claim 6, characterized in that: The polygonal cavity is any one of a regular octagonal cavity, a regular heptagonal cavity, a regular hexagonal cavity, a regular pentagonal cavity, and a regular quadrilateral cavity.

8. The double-sided snap-on bearing assembly for a solar photovoltaic tracking bracket according to claim 4, characterized in that: The outer surface of the snap-in bearing assembly is cylindrical.

9. The double-sided snap-on bearing assembly for a solar photovoltaic tracking bracket according to claim 8, wherein: A single-sided flange is provided on the end surface of the plastic bearing sub-component, and the single-sided flange is located at one end of the plastic bearing sub-component close to the first connecting block.

10. The double-sided snap-on bearing assembly for a solar photovoltaic tracking bracket according to claim 4, characterized in that: A plurality of weight-reducing holes are provided on the plane, and the plurality of weight-reducing holes are distributed in an array.

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