Limiting mechanism for photovoltaic tracking system

Abstract

The utility model relates to a limit mechanism for a photovoltaic tracking system, which comprises a main beam, a bearing and a bearing seat, the bearing is mounted on the outer side of the main beam and inside the bearing seat, the outer side of the main beam is fixedly connected with a limit shaft through mounting parts, the mounting parts are mounted on the left side and the right side of the bearing seat, and the bearing seat is provided with a limit part matched with the limit shaft for use. A limiting groove is formed in the position of the limiting part, the limiting part is arranged at the position where the limiting shaft is located when the main beam rotates to the limit angle, and when the main beam rotates to the limit angle, the limiting shaft rotates into the limiting groove and makes contact with the limiting part so as to prevent the main beam from continuing rotating. The limiting part and the limiting groove on the bearing seat are used in a matched mode, the auxiliary limiting effect can be achieved when the main beam rotates to the limiting position, acting force is evenly transmitted to the multiple bearing seats and the stand column of the photovoltaic tracking system, the torque borne by the main beam close to the driving mechanism is effectively reduced, and the stability of the whole structure is improved.

Description

Technical Field

[0001] The utility model relates to a limiting mechanism for a photovoltaic tracking system, belonging to the technical field of photovoltaic systems. Background Art

[0002] The photovoltaic tracking system tracks the movement of the sun in real time, allowing sunlight to directly hit the photovoltaic array, thereby increasing the amount of solar radiation received by the photovoltaic modules and improving the overall power generation of the photovoltaic power generation system. A driving mechanism is installed on the top of the driving column to drive the main beam to rotate and drive the photovoltaic modules to track the movement of the sun. Bearings are installed on the top of the non-driving column to support the rotating main beam.

[0003] In the prior art, when the photovoltaic tracking system rotates to the extreme position, the main beam is limited by the self-locking function of the driving mechanism. This limiting method causes an unbalanced force between the main beam near the driving mechanism and the main beam far away from the driving mechanism, and generates a large torque in the axial direction of the main beam. In severe cases, it may even cause the main beam to twist, causing structural damage to the photovoltaic tracking system and affecting the stability of the overall structure.

[0004] In order to solve the above problems, this application proposes a limiting mechanism for a photovoltaic tracking system. Utility Model Content

[0005] The technical problem to be solved by the utility model overcomes the existing defects and provides a limiting mechanism for a photovoltaic tracking system. A limiting shaft is installed on the outer side of the main beam through a mounting piece, and is used in conjunction with a limiting part and a limiting groove on the bearing seat. It can play an auxiliary limiting role when the main beam is rotated to the limit position, effectively reduce the torque of the main beam near the driving mechanism, improve the stability of the overall structure, and can effectively solve the problems in the background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A limiting mechanism for a photovoltaic tracking system comprises a main beam, a bearing and a bearing seat, wherein the bearing is mounted on the outside of the main beam and inside the bearing seat, the outside of the main beam is fixedly connected to a limiting shaft via a mounting member, the mounting member is mounted on the left and right sides of the bearing seat, a limiting portion used in conjunction with the limiting shaft is provided on the bearing seat, a limiting groove is provided at the limiting portion, the limiting portion is arranged at the position where the limiting shaft is located when the main beam rotates to a limit angle, and when the main beam rotates to the limit angle, the limiting shaft rotates to the inside of the limiting groove and contacts the limiting portion to prevent the main beam from continuing to rotate.

[0008] As a further improvement of the utility model, the bearing seat is composed of a bearing retaining ring and a supporting structure arranged outside the bearing retaining ring, and a mounting hole for mounting the bearing is arranged inside the bearing retaining ring.

[0009] As a further improvement of the present invention, the limiting shaft is installed directly below the main beam, and the limiting portion and the limiting groove are arranged on the left and right sides of the main beam.

[0010] As a further improvement of the present invention, the mounting member is configured to have a shape that fits the lower wall of the main beam, and the mounting member is fixedly connected to the main beam via a fastener.

[0011] As a further improvement of the present invention, a clamp is provided on the top of the main beam, and the mounting piece is provided at the bottom of the main beam. The mounting piece is fixedly connected to the main beam by a long screw fixing the mounting piece to the clamp.

[0012] As a further improvement of the utility model, the main beam is fixedly connected with purlins through a clamp, the mounting parts are fixedly connected to the purlins, and the limiting shaft is fixedly connected between the mounting parts.

[0013] As a further improvement of the present invention, the limiting portion and the limiting groove are arranged on the upper side of the bearing seat.

[0014] As a further improvement of the present invention, the support structure is configured as a base fixedly connected to the bottom of the bearing retaining ring, and the limiting portion and the limiting groove are both arranged on the base.

[0015] As a further improvement of the present utility model, two limit shafts are provided, the limit shafts are provided on the left and right sides of the main beam, and the limit portion is provided below the main beam.

[0016] As a further improvement of the utility model, a bearing seat mounting seat is fixedly connected to the bottom of the bearing seat, a column is fixedly connected to the bottom of the bearing seat mounting seat, and the bearing seat is fixedly connected to the column via the bearing seat mounting seat.

[0017] The beneficial effects of the utility model are as follows: a limiting mechanism for a photovoltaic tracking system, in which a limiting shaft is installed on the outer side of the main beam through a mounting piece, and is used in conjunction with a limiting portion and a limiting groove on a bearing seat, so that when the main beam is rotated to an extreme position, it can play an auxiliary limiting role, and evenly transmit the force to multiple bearing seats and columns of the photovoltaic tracking system, effectively reducing the torque borne by the main beam near the driving mechanism, improving the stability of the overall structure, and avoiding damage to the structure under strong wind conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0019] Figure 1 The utility model is a structural diagram of a limiting mechanism for a photovoltaic tracking system.

[0020] Figure 2 The utility model is a left view of a limiting mechanism for a photovoltaic tracking system.

[0021] Figure 3 The utility model is a structural diagram of a bearing seat in a limiting mechanism used in a photovoltaic tracking system.

[0022] Figure 4 This is a structural diagram of a limiting mechanism for a photovoltaic tracking system in Example 2 of the utility model.

[0023] Figure 5 It is a left view of a limiting mechanism for a photovoltaic tracking system in Example 2 of the utility model.

[0024] Figure 6 This is a structural diagram of a bearing seat in a limiting mechanism used in a photovoltaic tracking system in Example 2 of the utility model.

[0025] Figure 7 This is a structural diagram of a limiting mechanism for a photovoltaic tracking system in Example 3 of the utility model.

[0026] Figure 8 It is a left view of a limiting mechanism for a photovoltaic tracking system in Example 3 of the utility model.

[0027] Fig. 9 This is a structural diagram of a bearing seat in a limiting mechanism used in a photovoltaic tracking system in Example 3 of the utility model.

[0028] Fig.10 This is a structural diagram of a limiting mechanism for a photovoltaic tracking system in Example 4 of the utility model.

[0029] Fig.11 It is a left view of a limiting mechanism for a photovoltaic tracking system in Example 4 of the utility model.

[0030] Fig.12 This is a structural diagram of a bearing seat in a limiting mechanism used in a photovoltaic tracking system in Example 4 of the utility model.

[0031] Numbers in the figure: 1, main beam; 2, bearing; 3, bearing seat; 4, limit shaft; 5, mounting part; 6, limit part; 7, limit groove; 8, mounting hole; 9, column; 10, bearing retaining ring; 11, base; 12, purlin; 13, clamp; 14, clamp; 15, bearing seat mounting seat. DETAILED DESCRIPTION

[0032] The utility model is further described below in conjunction with specific implementation methods, wherein the accompanying drawings are only used for exemplary descriptions and represent only schematic diagrams rather than actual drawings, and cannot be understood as limitations on this patent. In order to better illustrate the specific implementation methods of the utility model, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. Based on the specific implementation methods in the utility model, all other specific implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0033] In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, in the description of the utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. The utility model is further explained below in conjunction with specific implementation methods.

[0034] like Figure 1 , Figure 4 , Figure 7 , Fig.10 As shown, a limiting mechanism for a photovoltaic tracking system includes a main beam 1, a bearing 2, and a bearing seat 3. The bearing 2 is installed on the outside of the main beam 1 and inside the bearing seat 3. The outside of the main beam 1 is fixedly connected to the limiting shaft 4 through a mounting member 5. The mounting member 5 is installed on the left and right sides of the bearing seat 3. A limiting portion 6 used in conjunction with the limiting shaft 4 is provided on the bearing seat 3. A limiting groove 7 is provided at the limiting portion 6. The limiting portion 6 is arranged at the position where the limiting shaft 4 is located when the main beam 1 rotates to the limit angle. When the main beam 1 rotates to the limit angle, the limiting shaft 4 rotates to the inside of the limiting groove 7 and contacts with the limiting portion 6 to prevent the main beam 1 from continuing to rotate. A bearing seat mounting seat 15 is fixedly connected to the bottom of the bearing seat 3. A column 9 is fixedly connected to the bottom of the bearing seat mounting seat 15. The bearing seat 3 is fixedly connected to the column 9 through the bearing seat mounting seat 15.

[0035] By installing the limiting shaft 4 on the outside of the main beam 1 through the mounting part 5, and using it in conjunction with the limiting part 6 and the limiting groove 7 on the bearing seat 3, it can play an auxiliary limiting role when the main beam 1 rotates to the extreme position, and evenly transmit the force to multiple bearing seats and columns 9 of the photovoltaic tracking system, effectively reducing the torque borne by the main beam 1 near the driving mechanism, improving the stability of the overall structure, and avoiding structural damage under strong wind conditions.

[0036] The following is further described in detail in conjunction with specific embodiments. It should be noted that the positions described in the following embodiments are all relative positions of the photovoltaic tracking system in a flat 0° state. Example 1

[0037] like Figure 1-Figure 3 As shown, the limit shaft 4 is designed as one and is installed directly below the main beam 1. Two mounting members 5 are provided, which are respectively fixedly connected to the bottom of the main beam 1 by bolts and are arranged on the left and right sides of the bearing seat 3. The mounting member 5 is set to a shape that fits the lower wall of the main beam 1. The mounting member 5 is fixedly connected to the main beam 1 by fasteners. The limit portion 6 and the limit groove 7 are arranged on the left and right sides of the main beam 1. The bearing seat 3 is composed of a bearing retaining ring 10 and a supporting structure arranged on the outside of the bearing retaining ring 10. An M-shaped slot is arranged at the bottom of the supporting structure. The limit portion 6 and the limit groove 7 are arranged at the top of the M-shaped slot. The limit shaft 4 rotates with the main beam 1 inside the M-shaped slot. A mounting hole 8 for installing the bearing 2 is arranged inside the bearing retaining ring 10, and the bearing 2 is installed inside the mounting hole 8 inside the bearing retaining ring 10.

[0038] When the main beam 1 rotates clockwise to the limit position, the limit shaft 4 rotates to Figure 1 In the state shown, the limit shaft 4 is located inside the limit groove 7, and the inner wall of the limit part 6 blocks the continued rotation of the limit shaft 4. Similarly, when the main beam 1 rotates counterclockwise to the limit position, the limit shaft 4 moves to the limit groove 7 on the other side. When the main beam 1 rotates to the limit position, with the self-locking of the driving mechanism, the force can be evenly transmitted to multiple bearing seats and columns 9 of the photovoltaic tracking system, effectively reducing the torque borne by the main beam 1 near the driving mechanism, improving the stability of the overall structure, and under strong wind conditions, the concentrated stress near the driving mechanism can be reduced to avoid structural damage under strong wind conditions. Example 2

[0039] like Figure 4-Figure 6As shown, the difference from Example 1 is that another connection method for fixing the mounting member 5 on the main beam 1 is provided, and a clamp 14 is provided on the top of the main beam 1 and fits with the outer wall of the main beam 1 to the left. The mounting member 5 is installed on the bottom of the main beam 1, and the clamp 14 and the mounting member 5 are clamped on the main beam 1 by a long screw. Compared with the structure of fixing the mounting member 5 in Example 1, this method of fixing the mounting member 5 is convenient for installation because the mounting member 5 is installed from the outside. Example 3

[0040] like Figure 7-9 As shown, the main beam 1 is fixedly connected with the purlin 12 by the clamp 13, the mounting member 5 is fixedly connected to the purlin 12, the limit shaft 4 is fixedly connected between the mounting members 5, and the corresponding limit portion 6 and limit groove 7 are arranged on the upper side of the bearing seat 3. When the main beam 1 rotates to the extreme position, the limit shaft 4 fixed on the mounting member 5 rotates to the inside of the limit groove 7 to prevent the limit shaft 4 from continuing to rotate. By using the purlin 12 and clamp 13 that are common to the installation of photovoltaic modules, the production cost can be effectively reduced. Example 4

[0041] like Figure 10-12 As shown, the supporting structure is configured as a base 11 fixedly connected to the bottom of the bearing retaining ring 10, the limiting portion 6 and the limiting groove 7 are both arranged on the base 11, two limiting shafts 4 are provided, the limiting shafts 4 are arranged on the left and right sides of the main beam 1, and the limiting portion 6 is arranged below the main beam 1. The use of this structure can reduce the production cost of the bearing seat 3.

[0042] The above is a preferred implementation mode of the utility model. The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Technical personnel in this industry should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A limiting mechanism for a photovoltaic tracking system, comprising a main beam (1), a bearing (2), and a bearing seat (3), wherein the bearing (2) is mounted on the outside of the main beam (1) and inside the bearing seat (3), and characterized in that: The outer side of the main beam (1) is fixedly connected to the limit shaft (4) via a mounting member (5); the mounting member (5) is mounted on the left and right sides of the bearing seat (3); a limit portion (6) for use with the limit shaft (4) is provided on the bearing seat (3); a limit groove (7) is provided at the limit portion (6); the limit portion (6) is arranged at the position where the limit shaft (4) is located when the main beam (1) rotates to a limit angle; when the main beam (1) rotates to the limit angle, the limit shaft (4) rotates to the inside of the limit groove (7) and contacts the limit portion (6) to prevent the main beam (1) from continuing to rotate.

2. The limiting mechanism for a photovoltaic tracking system according to claim 1, characterized in that: The bearing seat (3) is composed of a bearing retaining ring (10) and a supporting structure arranged outside the bearing retaining ring (10); a mounting hole (8) for mounting the bearing (2) is arranged inside the bearing retaining ring (10).

3. The limiting mechanism for a photovoltaic tracking system according to claim 2, characterized in that: The limiting shaft (4) is installed directly below the main beam (1), and the limiting portion (6) and the limiting groove (7) are arranged on the left and right sides of the main beam (1).

4. The limiting mechanism for a photovoltaic tracking system according to claim 3 is characterized in that: The mounting member (5) is configured to be in a shape that fits the lower wall of the main beam (1), and the mounting member (5) is fixedly connected to the main beam (1) via a fastener.

5. The limiting mechanism for a photovoltaic tracking system according to claim 3 is characterized in that: A clamp (14) is provided at the top of the main beam (1), and the mounting member (5) is provided at the bottom of the main beam (1). The mounting member (5) is fixedly connected to the clamp (14) via a long screw to fix the mounting member (5) to the main beam (1).

6. The limiting mechanism for a photovoltaic tracking system according to claim 2, characterized in that: The main beam (1) is fixedly connected to a purlin (12) via a hoop (13), the mounting member (5) is fixedly connected to the purlin (12), and the limiting shaft (4) is fixedly connected between the mounting members (5).

7. The limiting mechanism for a photovoltaic tracking system according to claim 6, characterized in that: The limiting portion (6) and the limiting groove (7) are arranged on the upper side of the bearing seat (3).

8. The limiting mechanism for a photovoltaic tracking system according to claim 2, characterized in that: The support structure is configured as a base (11) fixedly connected to the bottom of the bearing retaining ring (10), and the limiting portion (6) and the limiting groove (7) are both arranged on the base (11).

9. The limiting mechanism for a photovoltaic tracking system according to claim 8, characterized in that: The limiting shafts (4) are provided in two numbers, the limiting shafts (4) are provided on the left and right sides of the main beam (1), and the limiting portion (6) is provided below the main beam (1).

10. A limiting mechanism for a photovoltaic tracking system according to any one of claims 1 to 9, characterized in that: The bottom of the bearing seat (3) is fixedly connected to a bearing seat mounting seat (15), the bottom of the bearing seat mounting seat (15) is fixedly connected to a column (9), and the bearing seat (3) is fixedly connected to the column (9) via the bearing seat mounting seat (15).

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