Adjustable solar tracking support

Abstract

The utility model relates to the technical field of solar energy, and discloses an adjustable solar tracking support which comprises a mounting plate, a vertical plate is arranged at the top of the mounting plate, a fine adjustment part is rotatably connected to the rear side of the vertical plate, the fine adjustment part comprises a rotating arm, a tracker is arranged on the rotating arm, a servo motor is mounted on the front side of the vertical plate, and a positioning part is arranged on the front side of the rotating arm. The positioning part comprises a positioning disc, a positioning block is integrally formed on the front side of the positioning disc, a positioning protruding block is integrally formed on the side wall of the positioning block, and avoiding positions corresponding to the positioning block and the positioning protruding block are arranged on the front side of the rotating arm. Accurate fine adjustment control is achieved through the rotating arm driven by the servo motor, inching control or angle parameter input control can be automatically selected according to the using environment, machining deviation can be reduced through the integrated positioning block, the positioning protruding block and the receding position matched with the positioning block and the positioning protruding block, then assembly errors are reduced, and the machining efficiency is improved. And finally, the rotating arm rotation error of the fine-tuning part is reduced.

Description

Technical Field

[0001] This utility model relates to the field of solar energy technology, and in particular to an adjustable solar tracking bracket. Background Technology

[0002] A solar thermal power plant typically consists of four parts: a concentrating system, a heat absorption system, a heat storage system, and a heat-to-work conversion system. Among these, the concentrating system of a parabolic trough solar thermal power plant is the key part for achieving large-scale commercial operation, and the tracking system is a key component of the concentrating system. In a parabolic trough solar concentrating system, in order to focus the solar light onto the collector tubes, an optical tracker is commonly used to track the sunlight, that is, to keep the tracker following the sunlight so that the sunlight always shines perpendicularly on the receiving surface of the tracker.

[0003] Existing solar tracking brackets are all fixed with simple bolts and nuts, which cannot adjust the tracking accuracy more precisely. Therefore, they often produce large tracking errors. They are also affected by region, climate, longitude, latitude and installation errors. It is not easy to make the solar rays shine vertically on the receiving surface of the tracker to ensure that the tracking system accurately tracks the sunlight. This can easily lead to low heat absorption efficiency and burning of the tracking bracket. Utility Model Content

[0004] To overcome the problem that existing solar tracking brackets are not easy to fine-tune, have large cumulative installation errors, and are not conducive to accurate tracking of sunlight.

[0005] The technical solution of this utility model is as follows: an adjustable solar tracking bracket, including a mounting plate, a vertical plate on the top of the mounting plate, a fine-tuning part rotatably connected to the rear side of the vertical plate, the fine-tuning part including a rotating arm, a tracker on the rotating arm, a servo motor for driving the rotating arm to rotate installed on the front side of the vertical plate, a positioning part corresponding to the position of the servo motor on the front side of the rotating arm, the positioning part including a positioning disc, a positioning block integrally formed on the front side of the positioning disc, a positioning protrusion integrally formed on the side wall of the positioning block, a clearance position corresponding to the positioning block and the positioning protrusion on the front side of the rotating arm, the clearance position passing through the front and rear sides of the rotating arm, and the output shaft of the servo motor passing through the vertical plate and fixedly connected to the positioning block.

[0006] Preferably, the positioning disc fits against the rear side of the rotating arm, and bolts are installed in a circular array on the rear side of the positioning disc. The positioning disc has through holes to avoid the bolts, and anti-loosening nuts are provided on the front side of the rotating arm corresponding to the position of the bolts.

[0007] Preferably, a rolling support roller is provided below the rotating arm, and the bottom of the rotating arm has an arc structure. The support roller includes a roller that fits into the arc structure at the bottom of the rotating arm. The distance between the front and rear sides of the roller is equal to the distance between the front and rear sides of the rotating arm. Baffles are also provided on the front and rear sides of the roller, and the baffles have inclined surfaces that allow the front and rear sides of the rotating arm to avoid obstruction.

[0008] Preferably, an extension arm is installed on the rear side of the upright plate, a support plate is provided on the top of the extension arm, and a heat collection pipe is provided above the support plate.

[0009] Preferably, the top of the support plate is provided with a frame plate, and the top of the frame plate is provided with a downwardly recessed arc-shaped groove, and the radial outer wall of the heat collection tube can fit into the arc-shaped groove.

[0010] Preferably, a limiting plate is provided on the rear side of the upright plate corresponding to the bottom of the height-increasing arm, and a support plate is provided at the bottom of the limiting plate to support the limiting plate.

[0011] Preferably, the front and rear sides of the upright plate are respectively provided with reinforcing plates connected to the mounting plate, the rotating arm is a rectangular structure, the clearance is located on the side of the rotating arm near the bottom, the upper side of the rotating arm includes a forward-inclined plate, the rear side of the inclined plate is provided with a backward-inclined fixing plate, and the tracker is fixed on the side of the fixing plate facing upward.

[0012] The beneficial effects of this utility model are as follows: precise fine-tuning control is achieved through a rotating arm driven by a servo motor. Depending on the usage environment, it can automatically select jog control or input angle parameter control. The integrated positioning block, positioning protrusion, and matching clearance position can reduce machining deviations, thereby reducing assembly errors and ultimately reducing the rotation error of the rotating arm in the fine-tuning part. The separate positioning block and rotating arm can reduce machining complexity and avoid cumulative tolerances. In the precision milling stage, the integrated positioning block, positioning protrusion, and rotating arm need to be machined using the same milling machine to avoid incompatibility problems caused by different milling machines having different deviation accuracies. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the positioning disc structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the positioning protrusion structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the support roller structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the arc-shaped groove structure of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Mounting plate; 11. Vertical plate; 12. Reinforcing plate; 13. Limiting plate; 14. Support plate; 15. Heightening arm; 16. Bearing plate; 161. Frame plate; 1611. Arc-shaped groove; 31. Rotating arm; 311. Inclined plate; 312. Fixing plate; 32. Positioning disc; 321. Positioning block; 3211. Positioning protrusion; 3241. Inclined surface; 33. Servo motor; 331. Output shaft; 34. Support roller; 341. Roller; 342. Baffle; 35. Bolt; 351. Anti-loosening nut; 41. Heat collection tube; 5. Tracker. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please see Figure 1 - Figure 5This utility model provides an embodiment: an adjustable solar tracking bracket, including a mounting plate 1, a vertical plate 11 on the top of the mounting plate 1, a fine-tuning part rotatably connected to the rear side of the vertical plate 11, the fine-tuning part including a rotating arm 31, a tracker 5 mounted on the rotating arm 31, a servo motor 33 for driving the rotating arm 31 to rotate mounted on the front side of the vertical plate 11, a positioning part corresponding to the position of the servo motor 33 on the front side of the rotating arm 31, the positioning part including a positioning disc 32, a positioning block 321 integrally formed on the front side of the positioning disc 32, a positioning protrusion 3211 integrally formed on the side wall of the positioning block 321, a clearance position corresponding to the positioning block 321 and the positioning protrusion 3211 on the front side of the rotating arm 31, the clearance position passing through the front and rear sides of the rotating arm 31, the output shaft 331 of the servo motor 33 passing through the vertical plate 11 and... The positioning block 321 is fixedly connected and achieves precise fine-tuning control through the rotating arm 31 driven by the servo motor 33. Depending on the usage environment, it can be controlled by inching or by inputting angle parameters. The integrated positioning block 321, positioning protrusion 3211, and its matching clearance reduce machining deviations, thereby reducing assembly errors and ultimately reducing the rotation error of the rotating arm 31 in the fine-tuning section. Separate positioning blocks 321 and rotating arms 31 reduce machining complexity and avoid cumulative tolerances. In the precision milling stage, the integrated positioning block 321, positioning protrusion 3211, and rotating arm 31 need to be machined using the same milling machine to avoid incompatibility issues caused by different milling machines having different deviation accuracies. The positioning disc 32 rotates in contact with the machine. On the rear side of arm 31, bolts 35 are installed in a circular array on the rear side of positioning disc 32. Positioning disc 32 has through holes to avoid the bolts 35. On the front side of rotating arm 31, corresponding to the position of the bolts 35, anti-loosening nuts 351 are provided. The through holes prevent the positioning disc 32 from not being tightly fixed to the rotating arm 31 due to positional deviation of the bolts 35. The bolts 35 and anti-loosening nuts 351 only serve to tighten the positioning disc 32 and rotating arm 31. The anti-loosening nuts 351 reduce the possibility of them falling off the bolts 35 during prolonged use. A rolling support roller 34 is provided below the rotating arm 31. The bottom of the rotating arm 31 has an arc-shaped structure, and the support roller 34 includes rollers 341 that fit into the arc-shaped structure at the bottom of the rotating arm 31. The distance between the front and rear sides of the roller 341 is equal to the distance between the front and rear sides of the rotating arm 31. The front and rear sides of the roller 341 are also provided with baffles 342. The baffles 342 are provided with inclined surfaces 3241 that allow the front and rear sides of the rotating arm 31 to avoid interference. The rotating arm 31 is supported by the roller 34, which reduces metal fatigue caused by the radial load force on the output shaft 331 of the servo motor 33 over a long period of time. The baffles 342 can restrict the rotating arm 31 and prevent it from easily detaching from the output shaft 331. The inclined surfaces 3241 can avoid friction between the roller 34 and the rotating arm 31 and reduce friction. The roller 34 rotates following the rotating arm 31. The way the roller 34 is rotatably connected to the upright plate 11 is well known to those skilled in the art.

[0021] Please see Figure 2 - Figure 5 In this embodiment, an extension arm 15 is installed on the rear side of the upright plate 11. A support plate 16 is provided on the top of the extension arm 15, and a heat collection tube 41 is provided above the support plate 16. The installation height of the heat collection tube 41 is increased by the extension arm 15, and the support plate 16 can support the heat collection tube 41. A bracket plate 161 is provided on the top of the support plate 16, and a downwardly recessed arc-shaped groove 1611 is provided on the top of the bracket plate 161. The radial outer wall of the heat collection tube 41 can fit into the arc-shaped groove 1611. The arc-shaped groove 1611 can support the lower side of the heat collection tube 41 and avoid blocking the area of ​​sunlight above. The heat collection tube 41 is adhered to the arc-shaped groove 1611. A limiting plate 13 is provided on the rear side of the upright plate 11 corresponding to the bottom of the extension arm 15. The bottom of the 13 is provided with a support plate 14 to support the limiting plate 13. The limiting plate 13 supports the raising arm 15, reducing the phenomenon of the limiting plate 13 shifting downward, so that the heat collection tube 41 above always maintains a relative height. The front and rear sides of the upright plate 11 are respectively provided with reinforcing plates 12 connected to the mounting plate 1. The rotating arm 31 has a rectangular structure, and the clearance position is located on the side of the rotating arm 31 closer to the bottom. The upper side of the rotating arm 31 includes a forward-inclined inclined plate 311. The rear side of the inclined plate 311 is provided with a backward-inclined fixing plate 312. The tracker 5 is fixed on the side of the fixing plate 312 facing upward. The reinforcement of the upright plate 11 and the mounting plate 1 by the reinforcing plate 12 enables the upright plate 11 to stand on the mounting plate 1 for a long time, extending its service life and reducing metal fatigue.

[0022] During operation, the operator can use the HMI panel to jog the servo motor 33 or input the desired rotation angle to control its rotation. The servo motor 33 has a brake function to prevent accidental power failure from causing the rotating arm 31 to tip over completely and damage the tracker 5. When the output shaft 331 of the servo motor 33 rotates, it drives the positioning block 321 to rotate. The tight fit between the positioning protrusion 321, the positioning block 321, and the clearance position allows the rotating arm 31 to start rotating immediately. Thanks to the negative feedback mechanism of the servo motor 33, the rotation range of the output shaft 331 can be calibrated, improving the rotation speed. For precision, roller 341 supports the bottom of rotating arm 31, reducing the radial load on output shaft 331. Inclined surface 3241 prevents baffle 342 from sliding against rotating arm 31, making the rotation of rotating arm 31 smoother during fine adjustments. Limiting plate 13 supports lifting arm 15, reducing the slippage caused by lifting arm 15 being fixed on vertical plate 11 for a long time. Limiting plate 13 is welded to vertical plate 11. Arc groove 1611 supports the lower arc surface of heat collection tube 41, allowing heat collection tube 41 to receive sufficient sunlight. The tracker 5, servo motor 33, human-machine panel and related electrical control wiring and program control are all existing technologies, and their working principles will not be described in detail here.

[0023] Through the above steps, the rotating arm 31 driven by the servo motor 33 achieves precise fine-tuning control. Depending on the usage environment, it can choose jog control or input angle parameter control. The integrated positioning block 321, positioning protrusion 3211 and its matching clearance position can reduce machining deviation, thereby reducing assembly error, and ultimately reducing the rotation error of the rotating arm 31 of the fine-tuning part. This solves the problem that the solar tracking bracket in the prior art is not easy to fine-tune, has a large cumulative installation error, and is not conducive to accurate tracking of sunlight.

Claims

1. An adjustable solar tracking bracket, characterized in that: The system includes a mounting plate (1), a vertical plate (11) on the top of the mounting plate (1), a fine-tuning part rotatably connected to the rear side of the vertical plate (11), the fine-tuning part including a rotating arm (31), a tracker (5) on the rotating arm (31), a servo motor (33) for driving the rotating arm (31) to rotate installed on the front side of the vertical plate (11), a positioning part corresponding to the position of the servo motor (33) on the front side of the rotating arm (31), the positioning part including a positioning disc (32), a positioning block (321) integrally formed on the front side of the positioning disc (32), the positioning block The side wall of (321) is integrally formed with a positioning protrusion (3211). The front side of the rotating arm (31) is provided with a clearance position corresponding to the positioning block (321) and the positioning protrusion (3211). The clearance position passes through the front and rear sides of the rotating arm (31). The output shaft (331) of the servo motor (33) passes through the upright plate (11) and is fixedly connected to the positioning block (321). The rear side of the upright plate (11) is equipped with a heightening arm (15). The top of the heightening arm (15) is provided with a bearing plate (16). The top of the bearing plate (16) is provided with a heat collection pipe (41).

2. The adjustable solar tracking bracket according to claim 1, characterized in that: The positioning disc (32) fits against the rear side of the rotating arm (31). Bolts (35) are installed in a ring array on the rear side of the positioning disc (32). The positioning disc (32) has through holes to avoid the bolts (35). Anti-loosening nuts (351) are provided on the front side of the rotating arm (31) corresponding to the position of the bolts (35).

3. The adjustable solar tracking bracket according to claim 2, characterized in that: The rotating arm (31) is provided with a rolling support roller (34) below it. The bottom of the rotating arm (31) is an arc structure. The support roller (34) includes a roller (341) that fits into the arc structure at the bottom of the rotating arm (31). The distance between the front and rear sides of the roller (341) is equal to the distance between the front and rear sides of the rotating arm (31). The front and rear sides of the roller (341) are also provided with baffles (342). The baffles (342) are provided with inclined surfaces (3241) that allow the front and rear sides of the rotating arm (31) to avoid each other.

4. The adjustable solar tracking bracket according to claim 3, characterized in that: The top of the support plate (16) is provided with a frame plate (161), and the top of the frame plate (161) is provided with a downwardly recessed arc-shaped groove (1611). The radial outer wall of the heat collection tube (41) can fit into the arc-shaped groove (1611).

5. The adjustable solar tracking bracket according to claim 4, characterized in that: A limiting plate (13) is provided on the rear side of the upright plate (11) corresponding to the bottom of the heightening arm (15), and a support plate (14) is provided at the bottom of the limiting plate (13) to support the limiting plate (13).

6. The adjustable solar tracking bracket according to claim 5, characterized in that: The front and rear sides of the upright plate (11) are respectively provided with reinforcing plates (12) connected to the mounting plate (1). The rotating arm (31) is a rectangular structure. The clearance position is located on the side of the rotating arm (31) near the bottom. The upper side of the rotating arm (31) includes a forward-inclined plate (311). The rear side of the inclined plate (311) is provided with a fixed plate (312) that inclines backward and downward. The tracker (5) is fixed on the side of the fixed plate (312) facing upward.

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