Torsion spring device for resisting eccentric torque on tracking photovoltaic racking

Abstract

The utility model provides a torsional spring device for resisting eccentric torque of tracking photovoltaic support, including support subassembly and resilience subassembly. Support subassembly is installed in non -driven stand one side and parallel interval in photovoltaic main beam below, and resilience subassembly is sleeved on photovoltaic main beam, and one end is connected purlin, and the other end is installed in support subassembly. Photovoltaic main beam rotates and makes resilience subassembly deformation, and resilience subassembly applies reverse force to purlin, and the balance purlin and photovoltaic module gravity influence. Resilience subassembly is equipped with two and is symmetrical, and torsional spring one positive one negative assembly, ensure that purlin always presses torsional spring when main beam rotates plus or minus 60 degrees. The device can solve the problem that the support angle is pressed down by gravity, and the structure is simple and practical.

Description

Technical Field

[0001] This utility model relates to the field of tracking photovoltaic bracket technology, specifically a torsion spring device for resisting the eccentric torque of a tracking photovoltaic bracket. Background Technology

[0002] A photovoltaic (PV) tracking bracket uses a rotary reducer to drive the main beam, adjusting the tilt angle of the PV modules in real time to ensure they always face the sun, thus significantly increasing the amount of solar radiation received by the PV modules. In actual operation, due to the weight of the PV modules and purlins, the angle is often 3-8 degrees lower than the set angle of the tracking bracket. Therefore, overcoming the angle reduction caused by the weight of the purlins and modules is a key technical challenge that industry professionals need to overcome. Utility Model Content

[0003] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a torsion spring device for resisting the eccentric torque of a tracking photovoltaic bracket, thereby solving the problem of the bracket angle being reduced due to gravity.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A torsion spring device for resisting the eccentric torque of a tracking photovoltaic mounting system, comprising:

[0006] The support components are installed on one side of the non-drive column and are arranged in parallel at intervals below the photovoltaic main beam;

[0007] The rebound component is fitted onto the photovoltaic main beam, with one end connected to the purlin and the other end installed on the support component;

[0008] When the photovoltaic main beam rotates on the non-drive column, the rebound component deforms, and the rebound component applies a force to the purlin in the opposite direction to the rotation of the photovoltaic main beam.

[0009] Preferably, two spring-loaded assemblies are configured; the two spring-loaded assemblies are symmetrically arranged at 180° with respect to the center line of the purlin; each spring-loaded assembly includes a torsion spring, a rotating plastic bearing, and a pressure plate; the rotating plastic bearing and the pressure plate are sleeved and mounted on the photovoltaic main beam, with the pressure plate located on the side of the rotating plastic bearing away from the purlin; the pressure plates of the two spring-loaded assemblies are fixedly connected by locking bolts; the torsion spring is sleeved on the rotating plastic bearing; one end of the torsion spring abuts against the purlin, and the other end is mounted on the support assembly.

[0010] Preferably, the support assembly includes a fixed plate and a support shaft; the fixed plate is fixedly installed on the non-drive column; one end of the support shaft is fixed to the fixed plate; the support shaft is arranged parallel to the photovoltaic main beam; and one end of the torsion spring is installed on the support shaft.

[0011] Preferably, one end of the torsion spring is provided with a U-shaped hook, and the other end is provided with a ring; the U-shaped hook of the torsion spring is hooked onto the purlin, and the ring is sleeved on the support shaft.

[0012] Preferably, there are two support shafts; the two support shafts are arranged in parallel and spaced apart; the support assembly further includes a reinforcing plate; the reinforcing plate is installed on the support shaft at the end away from the fixed plate.

[0013] Preferably, the reinforcing plate is provided with a circular hole adapted to the support shaft, and one end of the support shaft is inserted into the circular hole; the reinforcing plate is provided with an opening communicating with the circular hole and an adjustment hole communicating with the opening; the axis of the adjustment hole and the axis of the circular hole are perpendicular in space; after the opening is tightened by passing a clamping bolt through the adjustment hole, the reinforcing plate is fixed on the support shaft.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] By using two spring-loaded components symmetrically arranged at 180° with the center line of the purlin, and with the torsion springs installed in opposite directions, it is ensured that the purlin can always press down on the upturned end of the torsion spring within a rotation range of ±60 degrees for the photovoltaic main beam, achieving stable gravity balance under different rotation angles and adapting to the angle adjustment requirements of tracking photovoltaic brackets.

[0016] One end of the torsion spring is equipped with a U-shaped hook to hang on the purlin, and the other end is equipped with a ring to connect to the support shaft. The connection method is stable and can reliably transmit the reverse force. The support assembly is equipped with a reinforcing plate, which is fixed to the support shaft by tightening the opening with clamping bolts. This can improve the support stability of the support shaft and further ensure the stability of the fixed end of the torsion spring, ensuring the long-term reliable operation of the device.

[0017] The resistance applied to the main beam can be adjusted by replacing torsion springs of different stiffness according to the construction environment and actual conditions, making it suitable for various application scenarios. The overall structure of the device is easy to assemble, and the replacement of torsion springs and overall maintenance are simple, reducing the cost of use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0020] in:

[0021] 1. Purlin; 2. Photovoltaic main beam; 3. Non-drive column; 4. Torsion spring; 5. Rotating plastic bearing; 6. Pressure plate; 7. Locking bolt; 8. Support shaft; 9. Fixing plate; 10. Reinforcing plate; 11. Clamping bolt. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] like Figure 1 , Figure 2 As shown, a torsion spring device is used to resist the eccentric torque of a tracking photovoltaic bracket, which is used to balance the gravitational influence of purlin 1 and photovoltaic module; a bearing seat is installed on the non-drive column 3, the photovoltaic main beam 2 is installed in the bearing seat, and the purlin 1 is installed on the photovoltaic main beam 2; the photovoltaic module is installed on the purlin 1.

[0024] The device includes:

[0025] The support components are installed on one side of the non-drive column 3 and are arranged in parallel at intervals below the photovoltaic main beam 2;

[0026] The rebound component is fitted onto the photovoltaic main beam 2, with one end connected to the purlin 1 and the other end installed on the support component;

[0027] When the photovoltaic main beam 2 rotates on the non-driving column 3, the rebound component deforms, and the rebound component applies a force to the purlin 1 in the opposite direction to the rotation of the photovoltaic main beam 2.

[0028] In this embodiment, two spring-loaded components are configured; the two spring-loaded components are symmetrically arranged at 180° with respect to the centerline of the purlin 1; each spring-loaded component includes a torsion spring 4, a rotating plastic bearing 5, and a pressure plate 6; the rotating plastic bearing 5 and the pressure plate 6 are sleeved and installed on the photovoltaic main beam 2, with the pressure plate 6 located on the side of the rotating plastic bearing 5 away from the purlin 1; the pressure plates 6 of the two spring-loaded components are fixedly connected by locking bolts 7; the locking bolts 7 are conventional bolts; the torsion spring 4 is sleeved on the rotating plastic bearing 5; the pressure plate 6 restricts the torsion spring 4 to the rotating plastic bearing 5; one end (the upturned end) of the torsion spring 4 abuts against the purlin 1, and the other end is installed on the support component. The torsion springs 4 of the two spring-loaded components are assembled in opposite directions on both sides of the purlin 1, ensuring that the purlin 1 will press down on the upturned end of the torsion spring 4 when the photovoltaic main beam 2 rotates by ±60 degrees.

[0029] In this embodiment, the support assembly includes a fixed plate 9 and a support shaft 8; the fixed plate 9 is fixedly installed on the non-drive column 3; one end of the support shaft 8 is fixed on the fixed plate 9; the support shaft 8 is arranged parallel to the photovoltaic main beam 2; one end of the torsion spring 4 is installed on the support shaft 8.

[0030] In this embodiment, one end of the torsion spring 4 is provided with a U-shaped hook, and the other end is provided with a ring; the U-shaped hook of the torsion spring 4 is hooked on the purlin 1, and the ring is sleeved on the support shaft 8.

[0031] In this embodiment, two support shafts 8 are configured; the two support shafts 8 are arranged in parallel and spaced apart; the support assembly also includes a reinforcing plate 10; the reinforcing plate 10 is installed on the support shaft 8 at the end away from the fixing plate 9.

[0032] In this embodiment, the reinforcing plate 10 is provided with a circular hole adapted to the support shaft 8, and one end of the support shaft 8 is inserted into the circular hole; the reinforcing plate 10 is provided with an opening communicating with the circular hole and an adjustment hole communicating with the opening; the axis of the adjustment hole and the axis of the circular hole are perpendicular in space; by passing the clamping bolt 11 through the adjustment hole and rotating the nut on the clamping bolt 11 to tighten the opening, the reinforcing plate 10 is fixed on the support shaft 8, ensuring the stable support of the annular end of the torsion spring 4. The clamping bolt 11 is a conventional bolt.

[0033] Working principle

[0034] The working principle of this invention is based on the synergistic effect of the support component and the rebound component:

[0035] The support assembly is installed on one side of the non-drive column 3 and is arranged parallel to each other below the photovoltaic main beam 2. The spring-loaded assembly is sleeved on the photovoltaic main beam 2, with one end connected to the purlin 1 and the other end installed on the support assembly. When the photovoltaic main beam 2 rotates on the non-drive column 3, it will drive the purlin 1 to move synchronously. The purlin 1 presses down on the upturned end of the torsion spring 4 of the spring-loaded assembly, causing the torsion spring 4 to deform. The deformed torsion spring 4 will apply a force to the purlin 1 in the opposite direction to the rotation of the photovoltaic main beam 2, so as to balance the gravitational influence of the purlin 1 and the photovoltaic module.

[0036] Since there are two rebound components, and they are symmetrically arranged at 180° with the center line of purlin 1, the torsion springs 4 of the two rebound components are assembled in opposite directions, which can ensure that the purlin 1 can always press down on the upturned end of the torsion spring 4 within the ±60 degree rotation range of the photovoltaic main beam 2, so as to continuously and stably achieve gravity balance.

Claims

1. A torsion spring device for resisting the eccentric torque of a tracking photovoltaic bracket, characterized in that, include: The support components are installed on one side of the non-drive column (3) and are arranged parallel to each other below the photovoltaic main beam (2); The rebound component is fitted onto the photovoltaic main beam (2), with one end connected to the purlin (1) and the other end installed on the support component; When the photovoltaic main beam (2) rotates on the non-driving column (3), the rebound component deforms and the rebound component applies a force to the purlin (1) in the opposite direction to the rotation of the photovoltaic main beam (2).

2. The torsion spring device for resisting the eccentric torque of a tracking photovoltaic bracket as described in claim 1, characterized in that, Two spring-loaded components are configured; the two spring-loaded components are symmetrically arranged at 180° with respect to the center line of the purlin (1); the spring-loaded components include a torsion spring (4), a rotating plastic bearing (5), and a pressure plate (6); the rotating plastic bearing (5) and the pressure plate (6) are sleeved on the photovoltaic main beam (2), and the pressure plate (6) is located on the side of the rotating plastic bearing (5) away from the purlin (1); the pressure plates (6) of the two spring-loaded components are fixedly connected by locking bolts (7); the torsion spring (4) is sleeved on the rotating plastic bearing (5); one end of the torsion spring (4) abuts against the purlin (1), and the other end is installed on the support component.

3. The torsion spring device for resisting the eccentric torque of a tracking photovoltaic bracket as described in claim 2, characterized in that, The support assembly includes a fixed plate (9) and a support shaft (8); the fixed plate (9) is fixedly installed on the non-drive column (3); one end of the support shaft (8) is fixed on the fixed plate (9); the support shaft (8) is set parallel to the photovoltaic main beam (2); one end of the torsion spring (4) is installed on the support shaft (8).

4. The torsion spring device for resisting the eccentric torque of a tracking photovoltaic bracket as described in claim 3, characterized in that, One end of the torsion spring (4) is provided with a U-shaped hook, and the other end is provided with a ring; the U-shaped hook of the torsion spring (4) is hooked on the purlin (1), and the ring is sleeved on the support shaft (8).

5. The torsion spring device for resisting the eccentric torque of a tracking photovoltaic bracket as described in claim 3, characterized in that, Two support shafts (8) are provided; the two support shafts (8) are arranged in parallel and spaced apart; the support assembly also includes a reinforcing plate (10); the reinforcing plate (10) is installed on the support shaft (8) at one end away from the fixing plate (9).

6. The torsion spring device for resisting the eccentric torque of a tracking photovoltaic bracket as described in claim 5, characterized in that, The reinforcing plate (10) is provided with a circular hole that is compatible with the support shaft (8), and one end of the support shaft (8) is inserted into the circular hole; the reinforcing plate (10) is provided with an opening that communicates with the circular hole and an adjustment hole that communicates with the opening; the axis of the adjustment hole and the axis of the circular hole are perpendicular to each other in space; after the opening is tightened by passing the clamping bolt (11) through the adjustment hole, the reinforcing plate (10) is fixed on the support shaft (8).

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