A slewing bearing for driving solar panels

Abstract

This utility model relates to the field of slewing bearing technology and discloses a slewing bearing for driving solar panels, comprising: an outer ring and an inner ring, the outer ring and the inner ring being concentrically arranged, and the outer ring rotating around the center of the inner ring; the outer ring including a load-bearing outer ring for fixing loads and a drive outer ring for driving; the drive outer ring also having a drive structure; a gap structure for movement buffering is provided between the drive outer ring and the load-bearing outer ring; when the slewing bearing is subjected to a lateral load, the load-bearing outer ring deforms through the gap structure to offset the lateral load; by providing a deformable gap structure, for a slewing bearing bearing a crosswind load, the elastic deformation of the gap structure can offset the crosswind load, ensuring the normal operation of the slewing bearing.

Description

Technical Field

[0001] This utility model relates to the field of rotary bearing technology, specifically to a rotary bearing for driving solar panels. Background Technology

[0002] The slewing bearing for solar panels is a core transmission component of a solar tracking system. Its primary function is to support the overall weight of the solar panel array and drive the panels to rotate precisely and smoothly around a specific axis (one axis for a single-axis tracking system and two orthogonal axes for a dual-axis tracking system). This ensures that the solar panels remain perpendicular to the incident sunlight, maximizing photovoltaic power generation efficiency. In large-scale ground-mounted photovoltaic power plants, distributed photovoltaic power plants, and building-integrated photovoltaics (BIPV) scenarios, the performance of the slewing bearing directly determines the reliability, power generation revenue, and operation and maintenance costs of the tracking system.

[0003] Since solar panels are usually installed in relatively open outdoor areas, they inevitably encounter strong winds. For slewing bearings, the oncoming crosswind load can cause gaps in the bearings, reducing their accuracy or even causing damage. To address this issue, we propose a slewing bearing for solar panel drive. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a slewing bearing for driving solar panels, which can counteract the effects of crosswind loads on the slewing bearing.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A rotary bearing for driving solar panels includes an outer ring and an inner ring, the outer ring and the inner ring being concentrically arranged, and the outer ring rotating around the center of the inner ring. The outer ring includes a load-bearing outer ring for fixing loads and a drive outer ring for driving.

[0007] The outer drive ring also has a drive structure;

[0008] There is a gap structure between the drive outer ring and the bearing outer ring for movement buffering. When the slewing bearing is subjected to a lateral load, the bearing outer ring deforms through the gap structure to offset the lateral load.

[0009] As a preferred embodiment of the above technical solution,

[0010] The outer ring and the upper outer surface of the inner ring are respectively provided with a first connecting hole and a second connecting hole.

[0011] As a preferred embodiment of the above technical solution,

[0012] A ball bearing for lubrication is also provided between the inner ring and the outer drive ring.

[0013] As a preferred embodiment of the above technical solution,

[0014] The drive structure is a gear fixedly mounted on the lower outer periphery of the drive outer ring.

[0015] As a preferred embodiment of the above technical solution,

[0016] The gap structure further includes multiple sets of guide posts uniformly fixed on the outer wall of the drive outer ring, and the inner side of the bearing outer ring and the guide posts are respectively provided with through holes, and the guide posts can slide along the through holes;

[0017] The gap structure also includes an elastic element disposed between the bearing outer ring and the driving outer ring, so that the bearing outer ring can be reset under the action of external force.

[0018] As a preferred embodiment of the above technical solution,

[0019] The elastic element is a disc spring embedded inside the outer ring of the drive ring. The disc spring further has a disc spring body, and the disc spring body has a first connecting end and a second connecting end at both ends.

[0020] The first connecting end is fitted inside the drive outer ring, and the second connecting end is attached to the inner wall of the bearing outer ring.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] In this invention, by providing a deformable gap structure, the slewing bearing that bears crosswind loads can offset the crosswind loads through the elastic deformation of the gap structure, thus ensuring the normal operation of the slewing bearing. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 This is a schematic diagram of the exploded structure of this application;

[0026] Figure 3 This is a schematic diagram of the overall structure of the disc spring;

[0027] In the figure: 1. Supporting outer ring; 11. First connecting hole; 12. Through hole; 2. Driving outer ring; 21. Disc spring; 211. Disc spring body; 212. First connecting end; 213. Second connecting end; 22. Guide post; 23. Gear; 24. Sliding ball; 3. Inner ring; 31. Second connecting hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example: Figure 1-3 As shown, this utility model provides a technical solution: a rotary bearing for driving solar panels, including an outer ring and an inner ring 3. The outer ring mainly bears the function of connecting the load. The outer ring and the inner ring 3 are concentrically arranged and rotate around the center of the inner ring 3. The outer ring further includes a load-bearing outer ring 1 for fixing the solar panel and a drive outer ring 2 for driving. The drive outer ring 2 is driven by an external method, such as gear meshing, to rotate. There is also a movable buffer gap structure between the drive outer ring 2 and the load-bearing outer ring 1. When there is a lateral load (such as wind blowing towards the rotary bearing in a nearly vertical direction), the load-bearing outer ring 1 is moved and buffered by the gap structure, thereby mitigating the impact of the lateral load on the rotary bearing.

[0030] Among them, such as Figure 1-2 As shown, a first connecting hole 11 and a second connecting hole 31 are respectively provided on the upper ends of the outer ring 1 and the inner ring 3, and a ball bearing 24 for lubrication is also provided between the inner ring 3 and the driving outer ring 2.

[0031] Furthermore, such as Figure 2 As shown, a gear 23 is also fixedly installed along the lower outer periphery of the drive outer ring 2. When the outer ring needs to rotate, a drive mechanism such as a motor can be used. A drive gear (not shown in the figure) is fixedly sleeved on the output shaft of the motor. The drive gear can mesh with the gear 23 to make the drive outer ring 2 rotate. Since the drive outer ring 2 and the bearing outer ring 1 are connected to each other, the bearing outer ring 1 also rotates under the action of the drive outer ring 2. The load (solar panel or bracket part) fixedly installed on the bearing outer ring 1 also rotates.

[0032] The solar panels are installed in relatively open outdoor areas. In areas with frequent winds, the slewing bearing is easily subjected to oncoming crosswind loads, causing clearances in the bearing, reducing its precision, and even damaging it. Therefore, further... Figure 2-3 As shown, there is a gap structure between the bearing outer ring 1 and the load outer ring 2, which allows the bearing outer ring 1 to deform. This deformation needs to be elastic. The gap structure includes multiple sets of guide posts 22 evenly arranged on the outer wall of the drive outer ring 2. A through hole 12 is opened on the inner side of the bearing outer ring 1 corresponding to the guide post 22. The guide post 22 can slide in the through hole 12. No matter which direction the crosswind blows towards the solar panel, the bearing outer ring 1 can deform in the corresponding direction. An elastic element is also provided between the bearing outer ring 1 and the load outer ring 2, so that the rotary bearing can be elastically reset through the elastic element after deformation.

[0033] Furthermore, such as Figure 2-3 As shown, the elastic element is a disc spring 21, which is embedded inside the drive outer ring 2. The disc spring 21 further has a disc spring body 211, and the disc spring body 211 has a first connecting end 212 and a second connecting end 213 at both ends. The first connecting end 212 is embedded inside the drive outer ring 2, while the second connecting end 213 is attached to the inner wall of the bearing outer ring 1. When a crosswind blows, due to the gap between the drive outer ring 2 and the bearing outer ring 1, it can deform accordingly in the direction of the crosswind. When the crosswind cannot cause the disc spring 21 to undergo elastic deformation, the bearing outer ring 1 returns to its original position. The above actions can make the slewing bearing offset most of the load effect brought by the crosswind.

[0034] It should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", and "rear" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0035] The present invention provides a detailed description of a rotary bearing for driving solar panels. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of these embodiments are merely illustrative and are intended to aid in understanding the method and core concepts of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A rotary bearing for driving solar panels, characterized in that, include: The outer ring and the inner ring (3) are concentrically arranged, and the outer ring rotates around the center of the inner ring (3). The outer ring includes a load-bearing outer ring (1) for fixing the load and a drive outer ring (2) for driving. The outer drive ring (2) also has a drive structure; There is a gap structure between the driving outer ring (2) and the bearing outer ring (1) for movement buffering. When the slewing bearing is subjected to a lateral load, the bearing outer ring (1) deforms through the gap structure to offset the lateral load.

2. A rotary bearing for driving solar panels according to claim 1, characterized in that: The outer bearing ring (1) and the inner ring (3) are respectively provided with a first connecting hole (11) and a second connecting hole (31) on their upper outer surfaces.

3. A rotary bearing for driving solar panels according to claim 1, characterized in that: A ball bearing (24) for lubrication is also provided between the inner ring (3) and the drive outer ring (2).

4. A rotary bearing for driving solar panels according to claim 1, characterized in that: The driving structure is a gear (23) fixedly installed on the lower outer periphery of the driving outer ring (2).

5. A rotary bearing for driving solar panels according to claim 1, characterized in that: The gap structure further includes multiple sets of guide posts (22) uniformly fixed on the outer wall of the drive outer ring (2). The inner side of the bearing outer ring (1) and the guide posts (22) are also provided with through holes (12). The guide posts (22) can slide along the through holes (12). The gap structure also includes an elastic element disposed between the bearing outer ring (1) and the driving outer ring (2) so that the bearing outer ring (1) is reset under the action of external force.

6. A rotary bearing for driving solar panels according to claim 5, characterized in that: The elastic element is a disc spring (21) embedded inside the drive outer ring (2). The disc spring (21) further has a disc spring body (211), and the disc spring body (211) has a first connecting end (212) and a second connecting end (213) at both ends. The first connecting end (212) is fitted inside the drive outer ring (2), and the second connecting end (213) is attached to the inner wall of the bearing outer ring (1).

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