Bearing assembly and photovoltaic tracking support

Abstract

The utility model relates to the technical field of bearings, in particular to a bearing assembly and a photovoltaic tracking support. The bearing assembly comprises a bearing ring seat and a bearing body, and the bearing body can rotate around the central axis of the bearing ring seat. The bearing body comprises a supporting part, a first shoulder part and a second shoulder part, the supporting part is provided with a first end face and a second end face, the first shoulder part is arranged on the first end face, and the second shoulder part is arranged on the second end face, so that the bearing body is limited in the bearing ring seat; and a plurality of flow guide grooves which are arranged at intervals in the circumferential direction are formed in the peripheral surface of the supporting part and are used for guiding sand grains out of the bearing body. When in use, the plurality of flow guide grooves are arranged at intervals along the circumferential direction, so that sand grains entering between the bearing ring seat and the bearing body can enter the flow guide grooves and are finally discharged, and are not easy to continuously stay between the bearing ring seat and the bearing body, so that the bearing assembly is not easy to wear, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a bearing assembly and a photovoltaic tracking bracket. Background Art

[0002] Photovoltaic power generation is a technology that uses the photovoltaic effect of semiconductors to directly convert light energy into electrical energy. As an important component of the photovoltaic tracking system, the reliability of the transmission structure and the convenience of installation and maintenance of the tracking bracket are worthy of in-depth study.

[0003] Photovoltaic tracking brackets generally include a main beam, a column, and a slewing drive. The main beam is fixed to the column through a bearing assembly. The slewing drive is used to drive the main beam to rotate, thereby driving the photovoltaic components installed on the main beam to rotate. At present, the service life of the bearing assembly supporting the photovoltaic tracking bracket is short in a windy and sandy environment. It is urgent to design a new type of bearing assembly to meet the needs of different regions and markets. Utility Model Content

[0004] The utility model aims to provide a bearing assembly to increase the service life of the bearing assembly in a sandstorm environment, and also provides a photovoltaic tracking bracket to increase the service life of the photovoltaic tracking bracket in a sandstorm environment.

[0005] In order to solve the above technical problems, the utility model provides a bearing assembly.

[0006] The bearing assembly of the utility model comprises a bearing ring seat and a bearing body, wherein the bearing body can rotate around the central axis of the bearing ring seat;

[0007] The bearing body comprises a support portion, a first shoulder portion and a second shoulder portion, the support portion has a first end surface and a second end surface, the first shoulder portion is arranged on the first end surface, and the second shoulder portion is arranged on the second end surface, so as to restrict the bearing body in the bearing ring seat;

[0008] A plurality of guide grooves spaced apart along the circumferential direction are provided on the outer circumferential surface of the support portion, and the guide grooves are used to guide sand out of the bearing body.

[0009] Furthermore, the guide groove extends from the first shoulder to the second shoulder.

[0010] Furthermore, the depth of the guide groove gradually increases from the first shoulder to the second shoulder, and the guide groove has a sand leakage opening, which is arranged on the second shoulder.

[0011] Furthermore, a groove width of the guide groove gradually increases along a direction from the first shoulder to the second shoulder.

[0012] Furthermore, the bottom surface of the guide groove is a curved surface, and the curvature of the curved surface gradually increases along the direction from the first shoulder to the second shoulder.

[0013] Furthermore, the outer peripheral surface of the support portion is a spherical surface, and the inner wall surface of the bearing ring seat is a spherical surface adapted to the outer peripheral surface of the support portion.

[0014] Furthermore, a notch portion is provided on the bearing body, and the notch portion is used to allow the bearing body to undergo elastic deformation so as to be installed in the bearing ring seat.

[0015] Further, at least one of the first shoulder and the second shoulder is a guide boss, and a cross-sectional area of ​​the guide boss gradually increases toward the direction approaching the support portion.

[0016] Furthermore, a main beam mounting hole is provided on the bearing ring seat, and a weight-reducing hole is provided on the inner wall surface of the main beam mounting hole.

[0017] The utility model also provides a photovoltaic tracking frame, including a main beam, a column, a slewing drive and a bearing assembly as described in any of the above technical solutions, wherein the main beam is arranged on the column through the bearing assembly, and the slewing drive is used to drive the main beam to rotate.

[0018] Compared with the prior art, the utility model has at least the following beneficial effects:

[0019] When the bearing assembly of the utility model is used in a sandy environment, since a plurality of guide grooves are arranged at intervals along the circumferential direction, sand particles that enter between the bearing ring seat and the bearing body will enter the guide grooves and eventually be discharged, and are not likely to continue to stay between the two, so that the bearing assembly is not easy to wear and the service life is increased. At the same time, the setting of the guide grooves also reduces the amount of material used and the weight, thereby reducing the material cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment of a bearing assembly of the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure of the bearing body;

[0022] Figure 3 for Figure 2 A schematic diagram of the result from another perspective of the bearing body;

[0023] Figure 4 for Figure 1 A schematic diagram of the structure of the bearing ring seat and the support member;

[0024] Figure 5 for Figure 4 A structural schematic diagram of the bearing ring seat and the support member from another perspective;

[0025] Figure 6 for Figure 1 A schematic diagram of the structure of the connecting parts in FIG.

[0026] Figure 7 for Figure 1 A schematic diagram of the structure when the bearing assembly is assembled with the main beam;

[0027] Reference numerals:

[0028] 100, bearing ring seat;

[0029] 200, bearing body; 210, support portion; 211, guide groove; 212, sand leakage port;

[0030] 220, first shoulder; 230, second shoulder; 240, notch; 250, weight-reducing hole;

[0031] 310, support member; 311, first threaded through hole;

[0032] 320, connecting piece; 321, vertical plate; 322, horizontal plate; 323, reinforcing rib plate; 324, second threaded through hole;

[0033] 400. Main beam. DETAILED DESCRIPTION

[0034] A bearing assembly and a photovoltaic tracking bracket of the present invention will be described below in conjunction with a schematic diagram, wherein a preferred embodiment of the present invention is shown. It should be understood that those skilled in the art can modify the present invention described herein and still achieve the beneficial effects of the present invention. Therefore, the following description should be understood as being widely known to those skilled in the art and not as a limitation to the present invention.

[0035] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present utility model, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model 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 cannot be understood as a limitation to the present utility model.

[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the accompanying drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0038] The following is attached to the instruction manual Figures 1 to 7 , the bearing assembly of the first embodiment of the utility model is introduced.

[0039] In one embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the bearing assembly includes a bearing ring seat 100 and a bearing body 200 , and the bearing body 200 is capable of rotating around the central axis of the bearing ring seat 100 .

[0040] The bearing body 200 includes a support portion 210, a first shoulder 220 and a second shoulder 230. The support portion 210 has a first end face and a second end face. The first shoulder 220 is arranged on the first end face, and the second shoulder 230 is arranged on the second end face. The first shoulder 220 and the second shoulder 230 cooperate to limit the bearing body 200 in the bearing ring seat 100, so that the bearing body 200 is accurately positioned in the bearing ring seat 100 in the axial direction.

[0041] The outer circumferential surface of the support portion 210 is provided with a plurality of guide grooves 211 arranged at intervals along the circumference, and the guide grooves 211 are used to guide sand out of the bearing body 200. The guide grooves 211 may be arranged at equal intervals along the circumference, or may be arranged at unequal intervals.

[0042] When the bearing assembly of the utility model is used in a sandstorm environment, since a plurality of guide grooves 211 are arranged at intervals along the circumferential direction, sand particles entering between the bearing ring seat 100 and the bearing body 200 will enter the guide grooves 211 and eventually be discharged, and are not likely to continue to stay between the two, so that the bearing assembly is not easy to wear and the service life is increased. At the same time, the setting of the guide grooves 211 also reduces the amount of material used and the weight, thereby reducing the material cost.

[0043] In one embodiment, in order to increase the diversion range of the diversion groove 211, the diversion groove 211 extends from the first shoulder 220 to the second shoulder 230. As the bearing body 200 rotates, the diversion groove 211 can cover the entire range of the bearing body 200 in the circumferential direction, so that all sand particles can be discharged, and the discharge range is larger.

[0044] In one of the embodiments, in order to improve the sand guiding effect of the guide groove 211, the groove depth of the guide groove 211 gradually increases along the direction from the first shoulder 220 to the second shoulder 230, that is, a guiding surface extending in the direction of the second shoulder 230 is formed at the bottom of the guide groove 211, and the guide groove 211 has a sand leakage port 212, and the sand leakage port 212 is arranged on the second shoulder 230. The sand entering the guide groove 211 is more easily flowed out from the sand leakage port 212 under the guidance of the guiding surface at the bottom of the groove.

[0045] In other embodiments, the depth of the guide groove 211 may be designed to gradually deepen from the middle toward the first shoulder 220 and the second shoulder 230 , respectively, and the first shoulder 220 and the second shoulder 230 are correspondingly provided with a sand leakage opening 212 .

[0046] In one embodiment, the width of the guide groove 211 gradually increases along the direction from the first shoulder 220 to the second shoulder 230. The gradual increase in the groove width is conducive to the rapid discharge of sand.

[0047] In other embodiments, the width of the guide groove 211 may be fixed and unchanged.

[0048] In one of the embodiments, in order to further improve the sand guiding effect of the guide groove 211, the bottom surface of the guide groove 211 is a curved surface, and the curvature of the curved surface gradually increases along the direction from the first shoulder 220 to the second shoulder 230, that is, the bottom surface of the guide groove 211 becomes steeper and steeper along the direction from the first shoulder 220 to the second shoulder 230, so that the closer the sand is to the sand leakage outlet 212, the faster it is discharged, which is beneficial to prevent sand from accumulating at the sand leakage outlet 212.

[0049] In other embodiments, the bottom surface of the guide groove 211 may also be an inclined surface with a set angle, for example, an inclined surface with an inclination angle of 30 degrees or 40 degrees.

[0050] In one embodiment, the outer peripheral surface of the support portion 210 is a spherical surface, and the inner wall surface of the bearing ring seat 100 is a spherical surface adapted to the outer peripheral surface of the support portion 210. The support portion 210 and the bearing ring seat 100 are matched in a spherical contact manner. On the one hand, the support portion 210 and the bearing ring seat 100 fit more closely, and the gap between the two is smaller, making it more difficult for sand to enter. On the other hand, the spherical outer peripheral surface of the support portion 210 has a certain curvature in the axial direction, which can guide the sand, making it easier for the sand to enter the guide groove 211 and be discharged to the outside. It should be noted that the spherical surface refers to a part of the outer peripheral surface of a standard sphere that includes a diameter, not a complete outer peripheral surface of a standard sphere.

[0051] In other embodiments, the outer peripheral surface of the support portion 210 may also be a cylindrical surface. Correspondingly, the inner wall surface of the bearing ring seat 100 is also a cylindrical surface adapted thereto. The cylindrical surface is less difficult to process and has lower costs.

[0052] In one embodiment, a notch 240 is provided on the bearing body 200, and the notch 240 is used to elastically deform the bearing body 200 so as to be installed in the bearing ring seat 100. During assembly, by applying a force, the notch 240 can facilitate the elastic deformation of the bearing body 200, so that one end of the bearing body 200 can pass through the bearing ring seat 100 after deformation. After passing through, the force is stopped, the bearing body 200 is restored, and the first shoulder 220 and the second shoulder 230 restrict the bearing body 200 in the bearing ring seat 100, so that the bearing body 200 is accurately positioned in the bearing ring seat 100 in the axial direction.

[0053] In other embodiments, the bearing body 200 can also be configured as a detachable split structure. For example, the bearing body 200 can be configured as a detachable first half circle and a second half circle. After one end of the first half circle and the second half circle pass through the bearing ring seat 100, the two are assembled and fixed into a complete bearing body 200 through a connecting piece 320.

[0054] Furthermore, in one embodiment, in order to facilitate the assembly of the bearing body 200, the first shoulder 220 is a guide boss, and the second shoulder 230 is an annular baffle. The cross section of the guide boss gradually increases in the direction close to the support portion 210. During assembly, the guide boss first passes through the bearing ring seat 100. During the passing process, the guide boss has a guiding function, so that the bearing body 200 undergoes elastic deformation to facilitate passing through the bearing ring seat 100. In other embodiments, both the first shoulder 220 and the second shoulder 230 can be set as guide bosses. In other embodiments, only the second shoulder 230 can be set as a guide boss, and the first shoulder 220 can be set as an annular baffle.

[0055] In one embodiment, if Figure 1 and Figure 7 As shown, the bearing ring seat 100 is provided with a main beam mounting hole, and the main beam mounting hole is used to install the main beam 400. The inner wall surface of the main beam mounting hole is provided with a weight reduction hole 250. The setting of the weight reduction hole 250 further reduces the usage and dead weight of the material, thereby further reducing the material cost.

[0056] The bearing assembly can be made of plastic or metal.

[0057] In one embodiment, if Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, the bearing assembly also includes a support assembly, which is used to fix the bearing assembly on the column of the photovoltaic tracking bracket. Specifically, the support assembly includes a support member 310 and a connector 320. The support member 310 is U-shaped and fixedly connected to the outer peripheral surface of the bearing ring seat 100. Specifically, it can be fixedly connected by welding. The connector 320 is n-shaped and includes two vertical plates 321 and a horizontal plate 322 located at the ends of the two vertical plates 321. In order to improve the structural strength, a reinforcing rib plate 323 is fixed between the vertical plate 321 and the horizontal plate 322.

[0058] The support member 310 is provided with a first threaded through hole 311, and the horizontal plate 322 is provided with a second threaded through hole 324. The support member 310 and the connecting member 320 are connected by bolts passing through the first threaded through hole 311 and the second threaded through hole 324. The connecting member 320 is fixedly connected to the column, thereby fixing the bearing assembly on the column.

[0059] The embodiment of the second aspect of the utility model provides a photovoltaic tracking bracket.

[0060] The photovoltaic tracking bracket includes a main beam, a column, a slewing drive and a bearing assembly. The main beam is set on the column through the bearing assembly. The slewing drive is used to drive the main beam to rotate. The structure of the bearing assembly is the same as the structure of the bearing assembly described in any embodiment of the first aspect above, and will not be repeated here.

[0061] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A bearing assembly, characterized in that: It comprises a bearing ring seat and a bearing body, wherein the bearing body can rotate around the central axis of the bearing ring seat; The bearing body comprises a support portion, a first shoulder portion and a second shoulder portion, the support portion has a first end surface and a second end surface, the first shoulder portion is arranged on the first end surface, and the second shoulder portion is arranged on the second end surface, so as to restrict the bearing body in the bearing ring seat; A plurality of guide grooves spaced apart along the circumferential direction are provided on the outer circumferential surface of the support portion, and the guide grooves are used to guide sand out of the bearing body.

2. The bearing assembly according to claim 1, characterized in that: The guide groove extends from the first shoulder to the second shoulder.

3. The bearing assembly according to claim 2, characterized in that: The depth of the guide groove gradually increases from the first shoulder to the second shoulder, and the guide groove has a sand leakage opening, which is arranged on the second shoulder.

4. The bearing assembly according to claim 3, characterized in that: The width of the guide groove gradually increases along the direction from the first shoulder to the second shoulder.

5. The bearing assembly according to claim 3, characterized in that: The bottom surface of the guide groove is a curved surface, and the curvature of the curved surface gradually increases along the direction from the first shoulder to the second shoulder.

6. The bearing assembly according to any one of claims 1 to 5, characterized in that: The outer peripheral surface of the support portion is a spherical surface, and the inner wall surface of the bearing ring seat is a spherical surface matched with the outer peripheral surface of the support portion.

7. The bearing assembly according to any one of claims 1 to 5, characterized in that: The bearing body is provided with a notch portion, and the notch portion is used to allow the bearing body to undergo elastic deformation so as to be installed in the bearing ring seat.

8. The bearing assembly according to claim 7, characterized in that At least one of the first shoulder and the second shoulder is a guide boss, and a cross-sectional area of ​​the guide boss gradually increases toward the direction approaching the support portion.

9. The bearing assembly according to any one of claims 1 to 5, characterized in that: The bearing ring seat is provided with a main beam mounting hole, and the inner wall surface of the main beam mounting hole is provided with a weight reduction hole.

10. A photovoltaic tracking bracket, characterized in that: It comprises a main beam, a column, a slewing drive and a bearing assembly as claimed in any one of claims 1 to 9, wherein the main beam is arranged on the column through the bearing assembly, and the slewing drive is used for driving the main beam to rotate.

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