A method for assembling a flat single-axis string in a photovoltaic power station

Abstract

This application discloses a photovoltaic flat single-axis string assembly process. Based on a photovoltaic flat single-axis string assembly production line, this process involves assembling multiple photovoltaic panels in a string using a single flat axis and multiple photovoltaic brackets. This process solves the problem of workers' poor technical proficiency slowing down the construction progress of the entire photovoltaic power station, thereby improving the construction progress of the photovoltaic power station.

Description

Technical Field

[0001] The invention relates to an assembly process method for a flat single-axis photovoltaic power station string, belonging to the technical field of photovoltaic power station component assembly. Background Art

[0002] When building a photovoltaic power station of a size of 375MW, 978,480 photovoltaic panels are required to meet the power generation capacity. The photovoltaic bracket 7 is assembled into a whole by hand, and then the photovoltaic panel 71 is installed between the beam 72 and the pressure plate 76 of the photovoltaic bracket. Figure 7 As shown, a flat single shaft 75 serving as the main beam is passed through multiple bolts 73 and connecting plates 74. The installation of the photovoltaic panels 71 alone requires 16,401 man-days for general workers, 32,802 man-days for skilled workers, and 3,267 shifts for forklift operators. Especially when constructing in overseas environments such as Saudi Arabia, there is a problem of poor proficiency of workers in operating techniques, which leads to a slowdown in the construction progress of the entire photovoltaic power station. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides an assembly process method for a flat single-axis photovoltaic power station string.

[0004] The present invention is achieved through the following technical solutions.

[0005] The present invention provides a photovoltaic flat single-axis string assembly process method, which completes the process of assembling multiple photovoltaic panels in a string using a flat single axis through multiple photovoltaic brackets based on a photovoltaic flat single-axis string assembly production line.

[0006] The process includes the steps of synchronous assembly and string advancement which are completed in sequence.

[0007] The synchronous assembly steps are:

[0008] Multiple photovoltaic brackets are assembled by the loading group and transported to the photovoltaic finished product assembly unit for tightening. The bolts and nuts are in the screwed but not tightened state.

[0009] During this period, the flat single axle constituting the main beam is hoisted by the main beam loading unit and is waiting for parallel transportation;

[0010] During this process, multiple photovoltaic panels are arranged at intervals on the photovoltaic panel material installation unit.

[0011] The string advancement steps are:

[0012] The main beam loading unit transports the flat single axis parallel to the space between two bolts of multiple photovoltaic brackets;

[0013] Multiple photovoltaic panels are pushed into between the beams and pressure plates of multiple photovoltaic brackets through the photovoltaic panel loading and installation unit. The nuts and bolts are screwed together and tightened, and the pressure plates press the photovoltaic panels from top to bottom.

[0014] The photovoltaic flat single-axis string assembly production line includes:

[0015] Tighten the photovoltaic finished product assembly units at both ends of the crossbeam in the photovoltaic bracket;

[0016] The photovoltaic bracket is assembled and transported to the loading and pairing unit on the photovoltaic finished product assembly unit, which is located at the rear side of the photovoltaic finished product assembly unit;

[0017] The flat single axis is hoisted and transported parallel to the main beam loading unit between the two bolts. The main beam loading unit is located on the right side of the photovoltaic finished product assembly unit.

[0018] Multiple photovoltaic panels are synchronously installed on the photovoltaic panel loading and installation unit between the crossbeam and the pressure plate. The photovoltaic panel loading and installation unit is located in front of the photovoltaic finished product assembly unit.

[0019] The main beam loading unit comprises:

[0020] A fixed truss fixing portion;

[0021] The truss moving part can be moved forward and backward and is installed on the top of the truss fixed part;

[0022] A truss grabbing part for grabbing the flat single shaft is installed on the truss moving part;

[0023] A belt conveyor capable of conveying parallel horizontal single shafts is installed in the space below the front side of the truss fixed part.

[0024] The photovoltaic finished product assembly unit includes:

[0025] seat box;

[0026] The seat box is equipped with two telescopic parts A, which are installed opposite to each other. The fixed housing of the telescopic parts A is fixed on the seat box.

[0027] A tightening plate fixed on the telescopic end of the telescopic member A, wherein two tightening plates are fixed on the telescopic ends of the two telescopic members A in opposite directions;

[0028] The utility model also comprises a supporting roller which can be rotatably mounted on the seat box to support the flat single shaft. The supporting roller is divided into a plurality of intervals and can be rotatably mounted on the seat box below the tightening plate.

[0029] It also includes a guide arm A and a guide roller; the guide arm A is fixed to the seat box through a support body; the guide arm A is divided into two corresponding to both sides of a tightening plate; the guide roller is rotatably mounted on the guide arm A, and when the photovoltaic panel is pushed between the crossbeam and the pressure plate, the guide roller on the guide arm A provides a guide basis for the bottom surface of the photovoltaic panel, and the tightening plate provides a guide basis for the contact between the side of the photovoltaic panel.

[0030] The photovoltaic panel loading and installation unit comprises:

[0031] A horizontal placement table in a horizontal support installation state;

[0032] The force-bearing frame is located above the horizontal placement table;

[0033] The photovoltaic panel is pushed into a propulsion mechanical arm between the crossbeam and the pressure plate, and the propulsion mechanical arm is installed on the force-bearing frame.

[0034] It also includes a guide arm B and a guide roller; the guide arm B is fixed to the side of the horizontal placement table close to the guide arm A; the guide roller is rotatably mounted on the guide arm B.

[0035] The beneficial effect of the present invention is that the process of stringing and assembling multiple photovoltaic panels through a flat single axis and multiple photovoltaic brackets solves the problem of workers' poor operating skills leading to a slowdown in the construction progress of the entire photovoltaic power station, thereby improving the construction progress of the photovoltaic power station. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the structure of the production line arrangement of the present invention from the right rear perspective;

[0037] Figure 2 This is a schematic diagram of the structure of the main beam loading unit of the present invention from the right front perspective;

[0038] Figure 3 This is a schematic diagram of the structure of the photovoltaic panel loading and installation unit according to the present invention from the right rear perspective;

[0039] Figure 4 This is a schematic diagram of the structure of the photovoltaic panel loading and installation unit according to the present invention from the right front view;

[0040] Figure 5 This is a schematic structural diagram of an unclamped flat single axis photovoltaic finished product assembly unit of the present invention;

[0041] Figure 6 This is a schematic structural diagram of a photovoltaic finished product assembly unit clamping a flat single shaft according to the present invention;

[0042] Figure 7 It is a schematic structural diagram of the photovoltaic bracket of the present invention;

[0043] In the picture:

[0044] 1-feeding assembly unit; 11-assembly part; 12-robot;

[0045] 2- Photovoltaic finished product assembly unit; 21- Seat box; 22- Telescopic member A; 23- Clamping plate; 24- Support roller; 25- Telescopic member B; 26- Clamping plate; 27- Support body; 28- Guide arm A; 29- Guide roller;

[0046] 3- Main beam loading unit; 31- Truss fixing part; 32- Truss moving part; 33- Truss grabbing part; 34- Warehouse rack; 35- Belt conveyor; 341- Bottom frame; 342- Limit rod;

[0047] 4- Photovoltaic panel loading and installation unit; 41- Horizontal placement table; 42- Force frame; 43- Propulsion robot arm; 44- Guide arm B; 45- Guide roller;

[0048] 7-photovoltaic bracket; 71-photovoltaic panel; 72-crossbeam; 73-bolt; 75-flat single axis; 76-pressure plate. DETAILED DESCRIPTION

[0049] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0050] like Figures 1 to 7 shown.

[0051] A photovoltaic power station flat single-axis string assembly production line of the present application includes:

[0052] The photovoltaic bracket 7 is assembled and transported to the loading assembly unit 1 on the photovoltaic finished product assembly unit 2 for tightening. The loading assembly unit 1 includes an assembly part 11 and a robot 12. The assembly part 11 aligns the crossbeam 72 with the pressure plate 76 and uses two bolts 73 to pass through the bottom of the connecting plate 74 and pre-screw the nuts to form the photovoltaic bracket. The robot 12 transports the photovoltaic bracket to the photovoltaic finished product assembly unit 2 for tightening.

[0053] The photovoltaic finished product assembly unit 2 and the loading group unit 1 are located at the rear side of the photovoltaic finished product assembly unit 2. The photovoltaic finished product assembly unit 2 is a plurality of photovoltaic brackets arranged in a collinear manner to tighten the beams 72 of the plurality of photovoltaic brackets spaced apart, so as to facilitate the subsequent penetration of the flat single shaft 75 and the connection between the two bolts 73.

[0054] The main beam loading unit 3 is located on the right side of the photovoltaic finished product assembly unit 2. The main beam loading unit 3 lifts the flat single axis 75 constituting the main beam and transports it parallel to between the two bolts 73 in the photovoltaic finished product assembly unit 2.

[0055] The photovoltaic panel loading and installation unit 4 is located in front of the photovoltaic finished product assembly unit 2. The photovoltaic panel loading and installation unit 4 can realize the synchronous installation of multiple photovoltaic panels 71 between the beam 72 and the pressure plate 76 on the photovoltaic finished product assembly unit 2.

[0056] The photovoltaic brackets are pre-constructed on the loading assembly unit 1 with beams 72, pressure plates 76, bolts 73 and connections 74. Multiple photovoltaic brackets are distributed at intervals and are correspondingly tightened on the photovoltaic finished product assembly unit 2. The photovoltaic panel loading and installation unit 4 pushes the photovoltaic panel 71 between the beam 72 and the pressure plate 76. The main beam loading unit 3 hoistes the flat single axis 75 that constitutes the main beam and transports it in parallel between the two bolts 73 that pass through multiple photovoltaic brackets. The operation technical process is realized through a mechanized production line, which solves the problem of slowing down the construction progress of the entire photovoltaic power station due to poor workers' proficiency in operation technology, and provides technical support for improving the construction progress of the photovoltaic power station.

[0057] The present application discloses a photovoltaic power station flat single-axis string assembly process method, which is based on a photovoltaic power station flat single-axis string assembly production line. The process steps are as follows:

[0058] Step 1: Synchronous assembly:

[0059] Multiple photovoltaic brackets 7 are assembled by the loading group unit 1 and transported to the photovoltaic finished product assembly unit 2 for tightening, with the bolts 73 and nuts in the screwed-in but not tightened state;

[0060] During this period, the flat single shaft 75 constituting the main beam is hoisted by the main beam loading unit 3 and is waiting for parallel transportation;

[0061] During this period, a plurality of photovoltaic panels 71 are arranged at intervals on the photovoltaic panel loading and mounting unit 4;

[0062] Step 2: String advancement:

[0063] The main beam loading unit 3 transports the flat single shaft 75 in parallel and passes it between two bolts 73 of the multiple photovoltaic brackets 7;

[0064] Multiple photovoltaic panels 71 are pushed into between the crossbeams 72 and the pressure plates 76 of multiple photovoltaic brackets 7 through the photovoltaic panel loading and installation unit 4. The nuts and bolts 73 are screwed together and tightened, and the pressure plates 76 press the photovoltaic panels 71 from top to bottom. This realizes the process of stringing and assembling multiple photovoltaic panels 71 through multiple photovoltaic brackets 7 using a flat single axis 75, which solves the problem of slowing down the construction progress of the entire photovoltaic power station due to poor workers' operating skills, and improves the construction progress of the photovoltaic power station.

[0065] When the flat single shaft 75 serving as the main beam is passed through multiple bolts 73 and the connecting plate 74, due to the long length of the flat single shaft 75, it is necessary to use hoisting to align it between the two bolts 73 of the photovoltaic bracket 7 and then push it in parallel. The existing hoisting technology, such as the Chinese patent publication number CN214780217U, is a special hoist for hoisting the photovoltaic bracket as a whole. The disclosed technology is: the main beam of the photovoltaic bracket is connected to the second main hoisting beam in the hoist through a second self-unloading hook, and the crane slowly lifts it vertically. After the hoisting belt is tightened as a whole, it can be lifted by manual pulling and boom movement. Although the flat single shaft 75 serving as the main beam can be lifted, pulling the hoisting belt during hoisting and docking will cause the flat single shaft to tilt and cannot pass through the two bolts 73 of multiple photovoltaic brackets 7 horizontally and parallelly.

[0066] A main beam loading unit 3 of the present application, such as Figure 1 and Figure 2 As shown, including:

[0067] A truss fixing portion 31 fixed to the ground during construction;

[0068] The truss moving part 32 mounted on the top of the truss fixing part 31 can be moved forward and backward. The truss moving part 32 can move forward and backward on the top of the truss fixing part 31 by a motor-driven roller.

[0069] The truss moving part 32 is equipped with a truss grabbing part 33 for grabbing the flat single shaft 75. The truss grabbing part 33 is composed of a truss robot.

[0070] A magazine rack 34 is fixed to the lower rear side of the truss fixing portion 31, and a plurality of flat single shafts 75 are stacked on the magazine rack 34;

[0071] A belt conveyor 35 is installed below the front side of the truss fixing portion 31 on the front side of the storage rack 34.

[0072] The flat single shaft 75 is grabbed from the warehouse frame 34 by the truss grabbing part 33, and the truss moving part 32 moves the truss grabbing part 33 that grabs the flat single shaft 75 to the front side of the truss fixing part 31. The truss grabbing part 33 places the flat single shaft 75 in a parallel horizontal state on the belt conveyor 35. The belt conveyor 35 transports the flat single shaft 75 and passes it through the two bolts 73 of multiple photovoltaic brackets 7, solving the problem that the sling will cause the flat single shaft to tilt and cannot pass through the two bolts 73 of multiple photovoltaic brackets 7 in a parallel horizontal state.

[0073] The storage rack 34 includes:

[0074] A bottom frame 341 that supports the weight of the flat single shaft 75;

[0075] The bottom frame 341 is welded with a limit rod 342 fixed to the sides thereof, and the limit rod 342 limits the flat single shaft 75 in a stationary state;

[0076] The limit rods 342 on the front and left and right sides of the bottom frame 341 are welded and fixed to the truss fixing part 31. After the multiple flat single shafts 75 are placed on the bottom frame 341, the weight generated by the multiple flat single shafts 75 pulls the truss fixing part 31 to stabilize the whole.

[0077] When the flat single shaft 75 is transported in parallel to and passed through the two bolts 73 of multiple photovoltaic brackets 7 by the main beam loading unit 3 of the photovoltaic power station flat single shaft string assembly production line, it is necessary to ensure that the photovoltaic bracket 7 is tightened and immovable, and at the same time, it is also necessary to support the flat single shaft 75 that is separated from the support of the main beam loading unit 3. The existing technical solution for tightening the photovoltaic bracket 7 is such as a non-C-face photovoltaic module clamping tool with Chinese patent publication number CN214980556U, and the disclosed technology is: a clamping groove for accommodating the photovoltaic module frame to extend into is left between the clamping block 2 and the clamping block 1, so that the clamping block 1 and the clamping block 2 can jointly clamp and fix the non-C-face photovoltaic module frame; although the clamping block 1 and the clamping block 2 can tighten the two ends of the crossbeam 72 of the photovoltaic bracket 7 placed in the clamping groove to achieve the tightening of the photovoltaic bracket 7, the bottom of the clamping groove is suspended and cannot support the flat single shaft 75, resulting in a problem of suspension, which easily causes the flat single shaft 75 to change the docking position.

[0078] A photovoltaic finished product assembly unit 2 of the present application, such as Figures 5 and 6 As shown, including:

[0079] A seat box 21 providing a mounting base for the upper member;

[0080] The seat box 21 is provided with a telescopic member A22, which is provided in two opposite directions. The fixed housing of the telescopic member A22 is fixedly mounted on the seat box 21;

[0081] A top tightening plate 23 is welded and fixed on the telescopic end of the telescopic member A22. The top tightening plates 23 are fixed on the two telescopic ends of the telescopic members A22 in opposite directions.

[0082] The support roller 24 is rotatably mounted on the seat box 21 to support the flat single shaft 75 . The support roller 24 is spaced apart and rotatably mounted on the seat box 21 below the tightening plate 23 .

[0083] The two telescopic parts A22 carry two tightening plates 23 to tighten the two ends of the beam 72 in the photovoltaic bracket, so that the photovoltaic finished product assembly unit 2 can tighten the beam 72 in the photovoltaic bracket 7 so that it cannot move. The flat single shaft 75 is supported by the support roller 24 rotatably mounted on the seat box 21, which solves the problem that the photovoltaic bracket 7 cannot be tightened and cannot support the flat single shaft 75, resulting in it being suspended in the air, and avoids the flat single shaft 75 from changing the docking position.

[0084] The seat box 21 is also equipped with a telescopic part B25. Both the telescopic part B25 and the telescopic part A22 can be composed of telescopic bodies such as pneumatic telescopic rods or hydraulic telescopic rods; the telescopic part B25 casing is fixed on the seat box 21, and the telescopic parts B25 are four, spaced opposite to each other. The telescopic ends of the telescopic parts B25 are fixed with clamping plates 26, and the clamping plates 26 are four and correspondingly fixed on the telescopic ends of the four telescopic parts B25. The two opposite telescopic parts B25 are clamped with the clamping plates 26 to keep the flat single shaft 75 stationary, so that it can remain stationary when the photovoltaic panel 71 is pushed between the crossbeam 72 and the pressure plate 76.

[0085] Guide arms A28 are installed on the seat box 21 located on both sides of the tightening plate 23 through the support body 27. There are two guide arms A28 corresponding to both sides of a tightening plate 23. Guide rollers 29 are rotatably installed on the guide arms A28. When the photovoltaic panel 71 is pushed between the beam 72 and the pressure plate 76, the guide rollers 29 on the guide arms A28 provide a guiding basis for the bottom surface of the photovoltaic panel 71, and the tightening plate 23 contacts the side of the photovoltaic panel 71 to provide a guiding basis, so that the tightening plate 23 plays two roles, realizing the stable introduction of the photovoltaic panel 71 into the space between the pushing beam 72 and the pressure plate 76.

[0086] On the flat single-axis string assembly production line of the photovoltaic power station, the photovoltaic panel 71 needs to be in a horizontal state and then pushed between the beam 72 and the pressure plate 76. The existing technology for putting the photovoltaic panel 71 in a horizontal state can be found in a solar photovoltaic panel installation lifting device with Chinese patent publication number CN110950230A. The disclosed technology is: the wiring wheel will retract and release the connecting rope, and when the connecting rope is retracted, it will drive the movable rod to move upward through the connecting block, and the movable rod will rotate when it moves upward. When the movable rod rotates, it also drives the connecting rod and the guide block to move along the first guide rod 3, and the lifted photovoltaic panel will gradually become horizontal. Although the photovoltaic panel is in a horizontal state by rotating the movable rod through the retraction and release of the connecting rope, the connecting rope will shake due to vibration and the photovoltaic panel cannot be quickly adjusted to a horizontal level, which reduces the construction efficiency of pushing the photovoltaic panel between the beam 72 and the pressure plate 76.

[0087] A photovoltaic panel mounting unit 4 of the present application, such as Figures 3 and 4 Shown, including:

[0088] A horizontal placement platform 41 is provided for the photovoltaic panels 71 to be placed horizontally. The horizontal placement platform 41 is installed on the ground with four horizontal legs. Multiple photovoltaic panels 7 are placed horizontally on the horizontal placement platform 41 at intervals. Figures 3 and 4 Only one photovoltaic panel 7 is shown;

[0089] A force-bearing frame 42 is located above the horizontal placement platform 41, and the force-bearing frame 42 provides a force-bearing foundation for the propulsion robot arm 43;

[0090] The propulsion mechanical arm 43 is installed on the force-bearing frame 42, and the propulsion mechanical arm 43 pushes the photovoltaic panel 71 between the crossbeam 72 and the pressure plate 76. The propulsion mechanical arm 43 is distributed at multiple intervals to correspond to the multiple photovoltaic panels 71 horizontally placed on the horizontal placement platform 41. The multiple propulsion mechanical arms 43 simultaneously push the multiple photovoltaic panels 71 from the horizontal placement platform 41 to between the crossbeam 72 and the pressure plate 76 on the multiple photovoltaic finished product assembly units 2. Figures 3 and 4 Only one is shown.

[0091] Since multiple photovoltaic panels 71 can be placed horizontally through the horizontal placement platform 41 and pushed between the beam 72 and the pressure plate 76 under the propulsion of the propulsion robot 43, the problem that the connecting rope will shake due to vibration and cannot quickly adjust the level of the photovoltaic panel is solved, thereby improving the construction efficiency of pushing the photovoltaic panel between the beam 72 and the pressure plate 76.

[0092] A guide arm B44 is welded and fixed to the side of the horizontal placement table 41 close to the photovoltaic finished product assembly unit 2, and a guide roller 45 is rotatably installed on the guide arm B44. The guide arm B44 extends to the guide arms A28 of the two photovoltaic finished product assembly units 2 and has an overlapping section. When the photovoltaic panel 71 is pushed horizontally between the beam 72 and the pressure plate 76 by the push-robot arm 43, the guide roller 45 on the guide arm B44 first improves the rolling guide for the photovoltaic panel 71 and then connects to the guide roller 29 of the guide arm A28, so that the photovoltaic panel 71 is smoothly pushed between the beam 72 and the pressure plate 76. When the photovoltaic panel 71 is fully pushed between the beam 72 and the pressure plate 76, the nut on the bolt 73 is screwed in so that the pressure plate 76 presses the photovoltaic panel 71 tightly.

Claims

1. A method for assembling a flat single-axis string in a photovoltaic power station, characterized in that: A process for assembling a plurality of photovoltaic panels (71) in a string by using a flat single-axis (75) through a plurality of photovoltaic brackets (7) based on a photovoltaic flat single-axis string assembly production line; The photovoltaic flat single-axis string assembly production line includes: The photovoltaic finished product assembly units (2) are tightened against the two ends of the cross beam (72) of the photovoltaic support (7); The photovoltaic bracket (7) is assembled and transported to the loading assembly unit (1) on the photovoltaic finished product assembly unit (2), wherein the loading assembly unit (1) is located at the rear side of the photovoltaic finished product assembly unit (2); The flat single shaft (75) is hoisted and transported in parallel to the main beam loading unit (3) between the two bolts (73), and the main beam loading unit (3) is located on the right side of the photovoltaic finished product assembly unit (2); Synchronously installing a plurality of photovoltaic panels (71) on a photovoltaic panel loading and installation unit (4) between a crossbeam (72) and a pressing plate (76), wherein the photovoltaic panel loading and installation unit (4) is located in front of the photovoltaic finished product assembly unit (2); The photovoltaic finished product assembly unit (2) comprises: Seat box (21); A telescopic member A (22) is installed on the seat box (21), and the telescopic member A (22) is installed in two opposite directions. The telescopic member A (22) is fixedly installed on the seat box (21) through a fixed housing; A tightening plate (23) fixed on the telescopic end of the telescopic member A (22), wherein the tightening plates (23) are two oppositely fixed on the telescopic ends of the two telescopic members A (22); It also includes a support roller (24) rotatably mounted on the seat box (21) to support the flat single shaft (75), the support roller (24) being a plurality of intervals and rotatably mounted on the seat box (21) below the top plate (23); The invention also includes a guide arm A (28) and a guide roller (29); the guide arm A (28) is fixed on the seat box (21) through a support body (27); the guide arm A (28) is two and corresponds to both sides of a top plate (23); the guide roller (29) is rotatably mounted on the guide arm A (28), and when the photovoltaic panel (71) is pushed between the cross beam (72) and the pressure plate (76), the guide roller (29) on the guide arm A (28) provides a guide base for the bottom surface of the photovoltaic panel (71), and the top plate (23) contacts the side of the photovoltaic panel (71) to provide a guide base.

2. The method for assembling a flat single-axis photovoltaic string in a photovoltaic power station according to claim 1, wherein: The process includes the steps of synchronous assembly and string advancement which are completed in sequence.

3. The method for assembling a flat single-axis photovoltaic string according to claim 2, wherein: The synchronous assembly steps are: A plurality of photovoltaic brackets (7) are assembled through the loading assembly unit (1) and transported to the photovoltaic finished product assembly unit (2) for tightening, with the bolts (73) and nuts being in a screwed-on, untightened state; During this period, the flat single shaft (75) constituting the main beam is hoisted by the main beam loading unit (3) and is in a state of waiting for parallel transportation; During this process, a plurality of photovoltaic panels (71) are arranged at intervals on the photovoltaic panel mounting unit (4).

4. The method for assembling a flat single-axis photovoltaic string according to claim 2, wherein: The string advancement steps are: The main beam loading unit (3) transports the flat single shaft (75) in parallel and passes it between two bolts (73) of the plurality of photovoltaic brackets (7); A plurality of photovoltaic panels (71) are pushed through a photovoltaic panel loading and installation unit (4) and introduced between the crossbeams (72) and the pressing plate (76) of a plurality of photovoltaic brackets (7). The nuts and bolts (73) are screwed together and tightened, and the pressing plate (76) presses the photovoltaic panels (71) from top to bottom.

5. The method for assembling a flat single-axis photovoltaic string in a photovoltaic power station according to claim 1, wherein: The main beam loading unit (3) comprises: a fixed truss fixing portion (31); A truss moving part (32), which can be moved forward and backward and is installed on the top of the truss fixed part (31); A truss grabbing portion (33) for grabbing the flat single shaft (75) is installed on the truss moving portion (32); A belt conveyor (35) capable of conveying a parallel horizontal single shaft (75) is installed in the space below the front side of the truss fixing part (31).

6. The method for assembling a flat single-axis photovoltaic string according to claim 1, wherein: The photovoltaic panel loading and installation unit (4) comprises: A horizontal placement table (41) in a horizontal support installation state; A force-bearing frame (42), the force-bearing frame (42) is located above the horizontal placement platform (41); The photovoltaic panel (71) is pushed into the propulsion mechanical arm (43) between the cross beam (72) and the pressure plate (76), and the propulsion mechanical arm (43) is installed on the force-bearing frame (42).

7. The method for assembling a flat single-axis photovoltaic string according to claim 6, wherein: It also includes a guide arm B (44) and a guide roller (45); the guide arm B (44) is fixed on the side of the horizontal placement platform (41) close to the guide arm A (28); and the guide roller (45) is rotatably mounted on the guide arm B (44).

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