Photovoltaic cable pay-off device and construction method

Abstract

The invention discloses a photovoltaic cable pay-off device and a construction method.The photovoltaic cable pay-off device comprises a base, a T-shaped support and a tension wire guiding wheel, the T-shaped support is vertically arranged in the middle of the base, tension wire guiding assemblies are arranged at the two ends of the top of the T-shaped support respectively, a cable reel is arranged on the base, and a supporting rod is rotationally connected to the top of the cable reel; a first guide ring is arranged at the top of the supporting rod, an arc-shaped support is arranged on the lower portion of the supporting rod, and a second guide ring is arranged at the bottom of the arc-shaped support. The cable pay-off tension can be monitored in real time and automatically adjusted, it is ensured that the cable is not damaged in the pay-off process, the problems of cable twisting, cable breakage and the like caused by uneven tension are solved, the construction efficiency and quality are remarkably improved, the safety risk and the construction cost are reduced, and the service life of the cable is prolonged.

Description

Technical Field

[0001] The present invention relates to a wire-laying bracket, in particular to a photovoltaic cable wire-laying device and a construction method, belonging to the technical field of building construction. Background Art

[0002] With the rapid development of the photovoltaic industry, the scale of photovoltaic power station construction continues to expand, and the demand for laying photovoltaic cables is also increasing. Cable laying is a critical step in the construction of photovoltaic power stations. However, traditional photovoltaic cable laying methods have many problems, limiting construction efficiency and quality. Traditional photovoltaic cable laying typically requires multiple workers to coordinate the handling, laying, and securing of the cables. Due to the weight of the cables, workers face significant safety risks, especially when working in complex terrain or at height. Manual laying requires a significant amount of time and manpower, slowing overall project progress. Construction periods are particularly long in complex terrain or in adverse weather conditions. Furthermore, without proper protective measures during laying, the cables can be damaged by dragging, crushing, and other factors, leading to internal conductor breakage or insulation damage, thus affecting the cable's service life and electrical performance. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a photovoltaic cable pay-out device and construction method, which can quickly and safely carry out cable pay-out construction, improve work efficiency and ensure construction safety.

[0004] The technical solution adopted by the present invention to solve the technical problem is: A photovoltaic cable pay-out device comprises a base, a T-shaped bracket and a tension wire wheel, wherein a T-shaped bracket is vertically arranged in the middle of the base, and tension wire assemblies are respectively arranged at both ends of the top of the T-shaped bracket, and cable drums are respectively arranged on the bases on both sides of the T-shaped bracket, and the top of the cable drum is rotatably connected to a support rod, a first guide ring is arranged on one side of the top of the support rod, an arc-shaped bracket is arranged at the lower part of the support rod, and a second wire ring is arranged at the bottom of the arc-shaped bracket, and the cables on the cable drum pass through the second wire ring, the first guide ring, and the tension guide wheel in sequence, and are connected to the pay-out pulley and the traction machine.

[0005] The tension wire assembly consists of a pay-off machine, a take-up machine and a three-pulley tension sensor. A pay-off machine is provided on one side of the three-pulley tension sensor, and a take-up machine is provided on the other side of the three-pulley tension sensor. The pay-off machine, the take-up machine and the three-pulley tension sensor are respectively fixedly connected to the top of the T-shaped bracket through a bracket.

[0006] Limiting bolts are arranged on the bases around the cable drum, a chassis is arranged at the center of the top of the cable drum, and a support rod is rotatably connected to the top of the chassis.

[0007] The lower end of the arc-shaped bracket is located on the outer side of the top of the chassis.

[0008] A guide sleeve is provided on the base, a cross bar is passed through the guide sleeve and is fixed by bolts on the guide sleeve, a guide cylinder is provided at the outer end of the cross bar, an L-shaped bracket is inserted into the guide cylinder and is fixed by bolts outside the guide cylinder.

[0009] The construction method of the photovoltaic cable pay-out device comprises the following steps: S1. Place the base and T-shaped bracket in the rear compartment of the vehicle, then move the crossbar and L-shaped bracket so that the L-shaped bracket is stuck on the baffles on both sides of the rear compartment. Finally, use bolts to fix the L-shaped bracket and crossbar to secure the base. S2. Adjust the position of the cable reel, drill bolt holes on the base around the cable, and install limit bolts in the bolt holes to secure the cable reel. S3. Install a pay-off pulley and a traction machine on the ground near the construction site, then pass the cable on the cable drum through the second wire ring, the first wire ring, the tension wire assembly, the pay-off pulley and the traction machine in sequence, and perform the pay-off construction; S4. Start the tension control system and calibrate the three-pulley tension sensor to ensure it can accurately measure the tension of the cable payout. Set the appropriate tension range based on the cable specifications and construction requirements. Adjust the set value of the tension sensor through the display controller to ensure that the tension control system can automatically adjust the tension and maintain it within the set range. S5. Test the operating status of the pay-off machine and the take-up machine to ensure that they can operate smoothly; S6. Test the operating status of the traction machine to ensure that it can pull the cable smoothly; S7. Start the electric pulley and traction machine, start pulling the cable, observe the display of the tension control system, and ensure that the cable tension is within the set range.

[0010] The positive beneficial effects of the present invention are: 1. The present invention reduces the workload of manual handling and cable traction by installing a photovoltaic cable pay-out device in the rear compartment of a vehicle and using a pay-out pulley and a traction machine, significantly improves the speed of cable pay-out and accelerates the construction progress.

[0011] 2. The present invention reduces the occurrence of jamming during the pay-off process by providing a first wire loop and a second wire loop, thereby further improving the pay-off efficiency. By providing tension wire assemblies at both ends of the T-shaped bracket, the cable pay-off tension can be monitored and automatically adjusted in real time, ensuring that the cable is not damaged during the pay-off process, avoiding cable twisting, breakage and other problems caused by uneven tension, and extending the service life of the cable.

[0012] 3. The present invention arranges an L-shaped bracket in the guide cylinder. When in use, the L-shaped bracket is fixed to the side panel of the carriage to fix the base, thereby ensuring the stability of the device during transportation and ensuring the safety of transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a diagram of the present invention being installed in the rear compartment of a vehicle; Figure 3 It is a structural schematic diagram of the tension guide assembly of the present invention; Figure 4 Schematic diagram of the structure of the L-shaped bracket of the present invention; Figure 5 This is a schematic structural diagram of the cable reel of the present invention; Among them: 1-base, 2-T-shaped bracket, 4-cable drum, 5-chassis, 6-support rod, 7-first wire ring, 8-arc-shaped bracket, 9-second wire ring, 10-limit bolt, 11-guide cylinder, 12-cross bar, 13-guide cylinder, 14-L-shaped bracket, 15-paying pulley, 16-traction machine, 301-line defense machine, 302-take-up machine, 303-three-pulley tension sensor. DETAILED DESCRIPTION

[0014] The present invention will be further explained and illustrated below with reference to the accompanying drawings: Example 1, see Figure 1-Figure 5 A photovoltaic cable pay-out device includes a base 1, a T-shaped bracket 2 and a tension wire wheel 3. A T-shaped bracket 2 is vertically arranged in the middle of the base 1, and tension wire assemblies are respectively arranged at both ends of the top of the T-shaped bracket 2. Cable drums 5 are respectively arranged on the base 1 on both sides of the T-shaped bracket 2. A support rod 6 is rotatably connected to the top of the cable drum 5, a first guide ring 7 is arranged on one side of the top of the support rod 6, an arc-shaped bracket 8 is arranged at the lower part of the support rod 6, and a second wire ring 9 is arranged at the bottom of the arc-shaped bracket 8. The cable on the cable drum 5 passes through the second wire ring 9, the first guide ring 7, and the tension guide wheel 3 in sequence, and is connected to the pay-out pulley 15 and the traction machine 16.

[0015] The tension wire assembly consists of a pay-off machine 301, a take-up machine 302 and a three-pulley tension sensor 303. The pay-off machine 301 is arranged on one side of the three-pulley tension sensor 303, and the take-up machine 302 is arranged on the other side of the three-pulley tension sensor 303. The pay-off machine 301, the take-up machine 302 and the three-pulley tension sensor 303 are fixedly connected to the top of the T-shaped bracket 2 through a bracket respectively. The pay-off machine 301, the take-up machine 302 and the three-pulley tension sensor 303 are connected to the controller through lines.

[0016] Limiting bolts 10 are provided on the base 1 around the cable drum 5 , a chassis 5 is provided at the center of the top of the cable drum 5 , and a support rod 6 is rotatably connected to the top of the chassis 5 .

[0017] The lower end of the arc-shaped bracket 8 is located outside the top of the chassis 5 .

[0018] A guide sleeve 11 is provided on the base 1, a cross bar 12 passes through the guide sleeve 11 and is fixed by bolts on the guide sleeve 11, a guide cylinder 13 is provided at the outer end of the cross bar 12, an L-shaped bracket 14 is inserted into the guide cylinder 13 and is fixed by bolts outside the guide cylinder 13.

[0019] There are two guide sleeves 11, which are respectively arranged on both sides of the base 1, and are used in conjunction with the L-shaped brackets 14 on both sides to fix the base 1 to the baffles on both sides of the rear compartment.

[0020] In the above description, there are two guide sleeves, which are respectively located at the two side edges of the base and on the bases on both sides of the T-shaped bracket. Tightening bolts are provided on the guide sleeves.

[0021] In the above description, four bolt holes are respectively dug on the bases on both sides of the T-shaped bracket for installing limit bolts.

[0022] In the above description, the pay-off machine, take-up machine, and three-pulley tension sensor in the tension wire assembly are fixedly connected to the top of the T-frame through brackets.

[0023] In the above description, the end of the pay-off machine is connected to a wire protection drum, the end of the take-up machine is provided with a take-up drum, and the pulley tension sensor consists of three guide wheels and a tension sensor.

[0024] Example 2, a construction method of the above-mentioned photovoltaic cable pay-out device, comprising the following steps: S1. Place the base 1 and T-shaped bracket 3 in the rear compartment A of the vehicle, then move the crossbar 12 and L-shaped bracket 14 so that the L-shaped bracket 14 is stuck on the baffles on both sides of the rear compartment A. Finally, use bolts to fix the L-shaped bracket 14 and crossbar 12 to secure the base. S2. Adjust the position of the cable drum 4, punch bolt holes on the base 1 around the cable 4, and install limit bolts 10 in the bolt holes to secure the cable drum 4. S3, install a pay-off pulley (15) and a traction machine (16) on the ground near the construction site, then pass the cable on the cable drum 4 through the second wire ring 9, the first wire ring 7, the tension wire assembly, the pay-off pulley 15 and the traction machine 16 in sequence, and perform the pay-off construction; S4. Start the tension control system and calibrate the three-pulley tension sensor 303 to ensure it can accurately measure the tension of the cable payout. Set the appropriate tension range based on the cable specifications and construction requirements. Adjust the set value of the tension sensor through the display controller to ensure that the tension control system can automatically adjust the tension to maintain the set range. S5. Test the operating status of the pay-off machine 301 and the take-up machine 302 to ensure that they can operate smoothly; S6. Testing the operating status of the traction machine 16 to ensure that it can smoothly pull the cable; S7. Start the electric pulley and traction machine, start pulling the cable, observe the display of the tension control system, and ensure that the cable tension is within the set range.

[0025] In the above description, the outer end of the arc-shaped bracket is located outside the top surface of the cable drum.

[0026] Working principle: The limit bolts are used to fix the cable drum to prevent it from moving during the pay-out process; A support rod is connected to the upper part of the chassis by rotation, and the support rod is used to support the cable drum and guide the cable outlet direction; A first guide ring is installed on one side of the top of the support pole, an arc-shaped bracket is installed at the bottom of the support pole, and a second wire ring is installed at the bottom of the arc-shaped bracket. These two guide rings are used to guide the cable through smoothly to prevent the cable from rubbing or getting stuck on the support pole during the laying process. After being led out from the cable drum, the cable passes through the second conductor ring and the first guide ring in sequence, and then passes through the tension guide wheel. The tension guide wheel is installed on the tension conductor assembly on the top of the T-shaped bracket and is used to control the tension of the cable payout. After coming out of the tension guide wheel, the cable is connected to the payout pulley and the traction machine. The traction machine applies traction to the cable through the payout pulley, allowing the cable to be smoothly paid out from the cable drum and laid to the designated location. The tension conductor assembly consists of a pay-off machine, a take-up machine, and a three-pulley tension sensor. The three-pulley tension sensor monitors the tension of the cable in real time during the pay-off process and transmits the tension signal to the control unit. The control unit automatically adjusts the operating speed of the pay-off and take-up machines according to the preset tension range to ensure that the cable pay-off tension is always kept within the set range; when the tension is too high or too low, the control unit will issue a command to adjust the speed of the pay-off or take-up machine, thereby achieving automatic tension adjustment; The control unit is also equipped with a tension display function, allowing operators to view the cable tension value in real time on the display. When the tension exceeds the set range, the system will issue an alarm signal, prompting the operator to take timely measures.

[0027] The present invention can monitor and automatically adjust the tension of cable pay-out in real time, ensuring that the cable is not damaged during the pay-out process, avoiding problems such as cable twisting and breakage caused by uneven tension, significantly improving construction efficiency and quality, reducing safety risks and construction costs, and extending the service life of the cable.

Claims

1. A photovoltaic cable pay-off device, comprising a base (1), a T-shaped bracket (2) and a tension wire pulley (3), characterized in that: A T-shaped bracket (2) is vertically arranged in the middle of the base (1), and tension wire assemblies are respectively arranged at both ends of the top of the T-shaped bracket (2), and cable drums (5) are respectively arranged on the bases (1) on both sides of the T-shaped bracket (2), and the top of the cable drum (5) is rotatably connected to a support rod (6), and a first guide ring (7) is arranged on one side of the top of the support rod (6), and an arc bracket (8) is arranged at the bottom of the arc bracket (8), and a second wire ring (9) is arranged at the bottom of the arc bracket (8), and the cables on the cable drum (5) pass through the second wire ring (9), the first guide ring (7), and the tension guide wheel (3) in sequence, and are connected to the pay-off pulley (15) and the traction machine (16).

2. A photovoltaic cable pay-out device according to claim 1, characterized in that: The tension wire assembly consists of a wire pay-off machine (301), a wire take-up machine (302) and a three-pulley tension sensor (303); the wire pay-off machine (301) is provided on one side of the three-pulley tension sensor (303); the wire take-up machine (302) is provided on the other side of the three-pulley tension sensor (303); the wire pay-off machine (301), the wire take-up machine (302) and the three-pulley tension sensor (303) are respectively fixedly connected to the top of the T-shaped bracket (2) through a bracket; the wire pay-off machine (301), the wire take-up machine (302) and the three-pulley tension sensor (303) are connected to a controller through a line.

3. A photovoltaic cable pay-out device according to claim 1, characterized in that: Limiting bolts (10) are provided on the bases (1) around the cable drum (5), a chassis (5) is provided at the center of the top of the cable drum (5), and a support rod (6) is rotatably connected to the top of the chassis (5).

4. A photovoltaic cable pay-out device according to claim 1, characterized in that: The lower end of the arc-shaped bracket (8) is located outside the top of the chassis (5).

5. The photovoltaic cable pay-out device according to claim 1, characterized in that: The base (1) is provided with a guide sleeve (11), a cross bar (12) is passed through the guide sleeve (11) and is fixed by bolts on the guide sleeve (11), a guide cylinder (13) is provided at the outer end of the cross bar (12), an L-shaped bracket (14) is inserted into the guide cylinder (13) and is fixed by bolts outside the guide cylinder (13).

6. The photovoltaic cable pay-out device according to claim 1, characterized in that: There are two guide sleeves (11), which are respectively arranged on both sides of the base (1) and are used in conjunction with the L-shaped brackets (14) on both sides to fix the base (1) to the baffles on both sides of the rear compartment.

7. A construction method for a photovoltaic cable pay-out device according to any one of claims 1 to 5, characterized in that: The steps include: S1. Place the base (1) and the T-shaped bracket (3) in the rear compartment (A) of the vehicle, then move the crossbar (12) and the L-shaped bracket (14) so ​​that the L-shaped bracket (14) is stuck on the baffles on both sides of the rear compartment (A), and finally, use bolts to fix the L-shaped bracket (14) and the crossbar (12) to fix the base; S2. Adjust the position of the cable drum (4), punch bolt holes on the base (1) around the cable (4), and install limit bolts (10) in the bolt holes to fix the cable drum (4); S3, installing a pay-off pulley (15) and a traction machine (16) on the ground near the construction site, and then sequentially passing the cable on the cable drum (4) through the second wire ring (9), the first wire ring (7), the tension wire assembly, the pay-off pulley (15) and the traction machine (16), and performing the pay-off construction; S4. Start the tension control system and calibrate the three-pulley tension sensor (303) to ensure that it can accurately measure the tension of the cable pay-off; and set the appropriate tension range according to the cable specifications and construction requirements. Adjust the set value of the tension sensor through the display controller to ensure that the tension control system can automatically adjust the tension and keep it within the set range; S5, testing the operating status of the pay-off machine (301) and the take-up machine (302) to ensure that they can operate smoothly; S6, testing the operating status of the traction machine (16) to ensure that it can smoothly pull the cable; S7. Start the electric pulley and traction machine, start pulling the cable, observe the display of the tension control system, and ensure that the cable tension is within the set range.

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