Plastic bearing with groove and photovoltaic tracking support

Abstract

The utility model provides a plastic bearing with a groove and a photovoltaic tracking support, the photovoltaic tracking support comprises a photovoltaic main shaft and the plastic bearing with the groove arranged on a bearing seat, the plastic bearing with the groove is used for holding the photovoltaic main shaft, the plastic bearing with the groove is formed by splicing two bearing bodies, and the two bearing bodies are arranged on the bearing seat. A plurality of grooves are formed in the inner side surface of the bearing body, and at least one end of each groove is communicated to the outer side of the bearing body; and the projections of the plurality of grooves on the inner side surface of the bearing body cover the peripheral side of the photovoltaic main shaft. According to the utility model, the original hollowed-out design is replaced by the groove design fully covering the peripheral side of the photovoltaic main shaft, so that the contact stress area of the plastic bearing and the photovoltaic main shaft is increased, the loading capacity of the plastic bearing is improved, the friction force between the plastic bearing and the photovoltaic main shaft is enhanced, and the service life of the photovoltaic main shaft is prolonged. The purpose of synchronous rotation of the photovoltaic main shaft and the plastic bearing is achieved, and the abrasion risk during normal operation of the photovoltaic main shaft is reduced.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic tracking brackets, in particular to a plastic bearing with grooves and a photovoltaic tracking bracket. Background Art

[0002] In order to improve the power generation efficiency of the photovoltaic system, the photovoltaic tracking system needs to track the sunlight as much as possible to increase the output of clean energy. In order to ensure that the system can operate maintenance-free for a long time in harsh environments, photovoltaic bearings with high reliability and good wear resistance are required.

[0003] like Figure 1-3 As shown, Figure 1-Figure 3 This is a structural diagram of a plastic bearing in the prior art. The hollow design is adopted. The friction caused by the hollow design cannot achieve synchronous rotation of the photovoltaic main shaft and the plastic bearing. From a long-term perspective, the relative friction between the two will affect the photovoltaic main shaft. Utility Model Content

[0004] The first purpose of the utility model is to provide a plastic bearing with grooves, hoping to effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A plastic bearing with grooves, the plastic bearing is formed by splicing two bearing bodies, the inner side surface of the bearing body is provided with a plurality of grooves, and at least one end of each groove is connected to the outer side of the bearing body;

[0007] The projections of the multiple grooves on the inner side of the bearing body cover the circumference of the photovoltaic main shaft, mainly along the rotation direction of the photovoltaic main shaft to form a majority or complete coverage of the circumference of the photovoltaic main shaft.

[0008] While adopting the above technical solutions, the present invention can also adopt or combine the following technical solutions:

[0009] As a preferred technical solution of the utility model: the specifications of the two bearing bodies are consistent and the radial cross-sections are both semicircular.

[0010] As a preferred technical solution of the utility model: the single groove is in a V-shaped structure.

[0011] As a preferred technical solution of the utility model: the groove of the V-shaped structure includes a left part and a right part, and the left and right parts are arranged in an axisymmetric manner.

[0012] As a preferred technical solution of the utility model: multiple grooves are connected to form a mountain-shaped structure.

[0013] As a preferred technical solution of the utility model: the groove of the mountain-shaped structure includes an upper part and a lower part, and the upper and lower parts are arranged in a staggered manner.

[0014] As a preferred technical solution of the utility model: the single groove is a semicircular structure.

[0015] As a preferred technical solution of the utility model: the groove of the semicircular structure includes an upper part and a lower part, and the upper and lower parts are arranged in a staggered manner.

[0016] As a preferred technical solution of the utility model: two adjacent grooves are in an eight-shaped structure.

[0017] As a preferred technical solution of the utility model: the groove of the figure-eight structure includes an upper part and a lower part, and the upper and lower parts are arranged in a staggered manner.

[0018] Another object of the utility model is to provide a photovoltaic tracking bracket.

[0019] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0020] A photovoltaic tracking bracket comprises a photovoltaic main shaft, and the photovoltaic tracking bracket also comprises a plastic bearing with grooves as described above, wherein the plastic bearing is arranged on a bearing seat, and the plastic bearing with grooves is used to hold the photovoltaic main shaft.

[0021] The utility model provides a plastic bearing with grooves and a photovoltaic tracking bracket, which have the following beneficial effects compared with the prior art: the weight of the plastic bearing body is reduced, the hardness is reduced, and the appearance can be easily changed manually during installation to put it between the photovoltaic main shaft and the bearing seat; the groove design that fully covers the circumference of the photovoltaic main shaft replaces the original hollow design, thereby increasing the contact force area between the plastic bearing and the photovoltaic main shaft, improving the pressure-bearing capacity of the plastic bearing, and enhancing the friction between the plastic bearing and the photovoltaic main shaft, achieving the purpose of synchronous rotation of the photovoltaic main shaft and the plastic bearing, and reducing the risk of wear during normal operation of the photovoltaic main shaft; photovoltaic tracking systems are usually built in relatively remote and dry places, and there are often sand and fine dust in the environment, and there are no on-site personnel. The utility model arranges at least one end of each groove to be connected to the outside of the bearing body, so that the photovoltaic tracking system does not need frequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the front view of the existing plastic bearing;

[0023] Figure 2 is a cross-sectional view of an existing plastic bearing;

[0024] Figure 3 It is a top view of an existing plastic bearing;

[0025] Figure 4 A schematic diagram of a photovoltaic tracking bracket with a plastic bearing with grooves provided by the utility model;

[0026] Figure 5 A three-dimensional diagram of the overall structure;

[0027] Figure 6 It is a top view of the V-shaped structural groove;

[0028] Figure 7 It is a three-dimensional diagram of the V-shaped structural groove;

[0029] Figure 8 It is a top view of the mountain-shaped structural groove;

[0030] Fig. 9 It is a top view of the semicircular structural groove;

[0031] Fig.10 It is a top view of the groove of the figure eight structure;

[0032] In the figure: 1- plastic bearing; 2- bearing seat; 3- photovoltaic main shaft; 21- bearing seat round tube; 22- bearing seat bottom plate; 23- bearing seat stiffener. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

[0034] like Figure 4 and Figure 5 As shown, a photovoltaic tracking bracket with a plastic bearing with grooves includes a photovoltaic main shaft 3 and a plastic bearing 1 with grooves, wherein the plastic bearing 1 is arranged on a bearing seat 2, and the plastic bearing 1 with grooves is used to hold the photovoltaic main shaft 3. The bearing seat 2 includes a bearing seat round tube 21, a bearing seat bottom plate 22, and a bearing seat stiffening plate 23. The bearing seat round tube 21 is fixed on the bearing seat bottom plate 22 and the bearing seat stiffening plate 23.

[0035] The plastic bearing 1 is composed of two bearing bodies spliced ​​together, and the inner side surface of the bearing body is provided with multiple grooves, and at least one end of each groove is connected to the outer side of the bearing body; the projection of the multiple grooves on the inner side surface of the bearing body covers the circumference of the photovoltaic main shaft 3, mainly along the rotation direction of the photovoltaic main shaft 3 to form most or complete coverage of the circumference of the photovoltaic main shaft 3.

[0036] The two bearing bodies have the same specifications and the radial cross-sections are both semicircular.

[0037] In one embodiment, Figure 6 and Figure 7 As shown, the single groove is in a V-shaped structure, and the groove of the V-shaped structure includes a left part and a right part, and the left and right parts are arranged in an axially symmetrical manner.

[0038] In another embodiment, if Figure 8 As shown, multiple grooves are connected to form a mountain-shaped structure, and the grooves of the mountain-shaped structure include an upper part and a lower part, and the upper and lower parts are arranged in a staggered manner.

[0039] In another embodiment, if Fig. 9 As shown, the single groove is a semicircular structure, and the groove of the semicircular structure includes an upper part and a lower part, and the upper and lower parts are arranged in a staggered manner.

[0040] In another embodiment, if Fig.10 As shown, two adjacent grooves are in an eight-shaped structure, and the groove in the eight-shaped structure includes an upper part and a lower part, and the upper and lower parts are arranged in a staggered manner.

[0041] Specifically, the photovoltaic tracking bracket with the grooved plastic bearing is implemented in the following manner:

[0042] During installation, first weld the bearing seat tube 21, the bearing seat bottom plate 22, and the bearing seat stiffener 23, then install the bearing seat bottom plate 22 on the photovoltaic tracking bracket, and finally assemble the two plastic bearing bodies into a plastic bearing 1 and wrap the photovoltaic main shaft 3, and push it into the bearing seat tube 21. During use, whether the photovoltaic tracking bracket rotates clockwise or counterclockwise, the sand and dust in the plastic bearing 1 can fall out with the groove.

[0043] The above-mentioned specific implementation methods are used to explain the present invention and are only preferred embodiments of the present invention, rather than limiting the present invention. Any modifications, equivalent substitutions, improvements, etc. made to the present invention within the spirit of the present invention and the protection scope of the claims shall fall within the protection scope of the present invention.

Claims

1. A plastic bearing with grooves, characterized in that: The plastic bearing (1) is formed by splicing two bearing bodies, the inner side surface of the bearing body is provided with a plurality of grooves, and at least one end of each groove is connected to the outer side of the bearing body; The projections of the multiple grooves on the inner side of the bearing body cover the circumference of the photovoltaic main axis (3).

2. The plastic bearing with grooves according to claim 1, characterized in that: The single groove has a V-shaped structure.

3. The plastic bearing with grooves according to claim 2, characterized in that: The V-shaped groove includes a left part and a right part, and the left and right parts are arranged axially symmetrically.

4. The plastic bearing with grooves according to claim 1, characterized in that: Multiple grooves are connected to form a mountain-shaped structure.

5. The plastic bearing with grooves according to claim 4, characterized in that: The groove of the mountain-shaped structure includes an upper part and a lower part, and the upper and lower parts are arranged in a staggered manner.

6. The plastic bearing with grooves according to claim 1, characterized in that: The single groove has a semicircular structure.

7. The plastic bearing with grooves according to claim 6, characterized in that: The groove of the semicircular structure includes an upper part and a lower part, and the upper and lower parts are arranged in a staggered manner.

8. The plastic bearing with grooves according to claim 1, characterized in that: The two adjacent grooves are in an eight-shaped structure.

9. The plastic bearing with grooves according to claim 8, characterized in that: The groove of the figure-eight structure comprises an upper part and a lower part, and the upper and lower parts are arranged in a staggered manner.

10. A photovoltaic tracking bracket, comprising a photovoltaic main axis, characterized in that: The photovoltaic tracking bracket also includes a plastic bearing (1) with a groove as described in any one of claims 1 to 9, wherein the plastic bearing (1) is arranged on a bearing seat (2), and the plastic bearing (1) with a groove is used to hold the photovoltaic main shaft (3).

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