S-shaped convenient laying device for photovoltaic power generation transmission cable

Abstract

The present application relates to cable laying technical field, specifically a kind of photovoltaic power generation transmission cable S type convenient laying device, including the mounting bracket fixed on transport vehicle, mounting bracket left and right sides are equipped with limiting plate, limiting plate is equipped with arc adjusting groove and limiting fixed hole;Reciprocating sliding block is slidably installed on mounting bracket, which is driven by ball screw through servo motor;Adjusting rod is arranged in arc adjusting groove, and the both ends of adjusting rod are fixed with limiting fixed hole through positioning plate and positioning rod;Reciprocating sliding block side is hingedly connected with adapter plate, and adapter plate is slidably connected with adjusting rod, and wire guide pulley is rotatably installed at the end of adapter plate, and wire guide pulley is driven by hydraulic motor;Dust baffle is arranged on the rear side of mounting bracket;The device can adjust the height difference between wire guide pulley and groove bottom to adapt to the change of groove depth, avoid cable jamming by active traction of wire guide pulley, and realize S type stable laying by cooperation of transport vehicle forward movement and reciprocating sliding block left and right movement.

Description

Technical Field

[0001] This invention relates to the field of cable laying technology, specifically to a convenient S-shaped laying device for photovoltaic power transmission cables. Background Technology

[0002] Photovoltaic power generation boasts advantages such as being clean and pollution-free, having widely distributed resources, and a short construction period. It is commonly deployed in deserts, saline-alkali lands, on water surfaces, rooftops, and high-altitude areas to efficiently utilize idle space. Photovoltaic power transmission cables are a crucial link in the power output chain, responsible for the safe transmission of electricity within the photovoltaic system. Desert regions experience significant diurnal temperature variations and a high risk of terrain subsidence. To ensure the safe and stable operation of photovoltaic transmission cables, trenches are typically excavated to bury the cables, and an S-shaped laying method is used to counteract the tensile forces caused by temperature changes and terrain subsidence, preventing cable breakage and damage.

[0003] Currently, the laying of photovoltaic power transmission cables mostly adopts a scheme of adding a reciprocating mechanism to the outlet end of a coiled cable. The cable is shaped into an S-shape by moving a transport vehicle in conjunction with the reciprocating mechanism's left-right swinging motion. However, this method still has shortcomings:

[0004] First, the height of the cable output end and the bottom of the trench are poorly matched. Different trenches have different depths. When the height difference between the output end and the bottom of the trench is too large, the cable is affected by inertia and the traction of the ground cable when it lands, making it difficult to form a stable S-shape, which affects the laying accuracy. Second, the reciprocating mechanism lacks a traction device. During the transportation process, the cable is easily stuck in the mechanism due to resistance, which prevents it from being output smoothly and in a timely manner, and also destroys the S-shaped laying pattern.

[0005] Therefore, in view of the above situation, there is an urgent need to develop an S-shaped convenient laying device for photovoltaic power transmission cables to overcome the shortcomings in current practical applications. Summary of the Invention

[0006] The purpose of this invention is to provide a convenient S-shaped laying device for photovoltaic power transmission cables to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A photovoltaic power transmission cable S-shaped convenient laying device includes a mounting frame for fixing to a transport vehicle, the mounting frame being provided with a reciprocating slider that can move back and forth in the left and right direction, and also includes an adapter plate, a height adjustment component and an active cable feeding component.

[0009] One end of the adapter plate is hinged to the reciprocating slider, and the other end of the adapter plate is the wire feeding end for outputting the power cable;

[0010] The height adjustment component is connected between the mounting bracket and the adapter plate, and is used to adjust the swing angle of the adapter plate around the hinge axis to adjust the height difference of the wire feeding end relative to the bottom of the trench.

[0011] The active cable feeding assembly is installed on the cable feeding end of the adapter plate. The active cable feeding assembly includes at least two sets of cable feeding guide wheels and a drive unit. Each set of cable feeding guide wheels is arranged opposite to each other to clamp the cable. The drive unit is connected to the cable feeding guide wheels for driving the cable feeding guide wheels to rotate and actively pull the cable to output it outward.

[0012] As a further embodiment of the present invention: a servo motor and a ball screw are mounted on the mounting frame, the ball screw is mounted in the mounting frame and rotates in the left and right direction, and the reciprocating slider is driven by the ball screw through a ball nut;

[0013] The output end of the servo motor is connected to the ball screw drive to drive the ball screw to rotate, thereby driving the reciprocating slider to move back and forth in the left and right directions.

[0014] As a further embodiment of the present invention: the height adjustment assembly includes a limiting plate, an adjusting rod, and a positioning locking component;

[0015] The limiting plate is fixedly installed on the side of the mounting frame. An arc-shaped adjustment groove is provided on the limiting plate, and the center of the arc-shaped adjustment groove coincides with the hinge axis of the adapter plate.

[0016] The adjusting rod passes through the arc-shaped adjusting groove, and the adjusting rod is slidably connected to the adapter plate;

[0017] The positioning and locking component is used to lock the adjusting rod in the target position of the arc-shaped adjusting groove to lock the swing angle of the adapter plate.

[0018] As a further embodiment of the present invention: the positioning and locking component includes a positioning plate and a positioning rod;

[0019] The positioning plate is fixed to the end of the adjusting rod that extends out of the arc-shaped adjusting groove, and the limiting plate has multiple limiting and fixing holes distributed circumferentially along the outer side of the arc-shaped adjusting groove;

[0020] The positioning rod can be simultaneously inserted into the positioning plate and the corresponding limiting and fixing hole to lock the position of the adjusting rod.

[0021] As a further aspect of the present invention, it also includes a guide wheel assembly, which comprises a fixed guide wheel assembly and a moving guide wheel assembly;

[0022] The fixed guide wheel assembly is rotatably mounted on the mounting frame, the reciprocating slider is fixed with a transfer frame, and the moving guide wheel assembly is rotatably mounted on the transfer frame and moves synchronously with the reciprocating slider;

[0023] The adapter plate is also rotatably mounted with an adjustment guide wheel;

[0024] The power transmission cable is guided sequentially by the fixed guide wheel group, the moving guide wheel group, and the adjusting guide wheel before entering the cable delivery guide wheel.

[0025] As a further embodiment of the present invention: the active wire feeding assembly further includes two sets of support plates and a spacing adjustment and locking mechanism;

[0026] Two sets of support plates are slidably mounted on the wire feeding end of the adapter plate. Each set of support plates is rotatably mounted with a wheel axle, and the wire feeding guide wheel is fixedly sleeved on the corresponding wheel axle.

[0027] The spacing adjustment and locking mechanism is used to adjust the relative spacing between the two sets of support plates and lock them in place to accommodate power transmission cables of different diameters.

[0028] As a further embodiment of the present invention: the spacing adjustment and locking mechanism includes a guide shaft, a thrust spring, a square column, and a clamping bolt;

[0029] The guide shaft passes through two sets of support plates, and baffles are fixed at both ends of the guide shaft. The thrust spring is sleeved on the guide shaft, and its two ends abut against the baffles and support plates respectively, for pushing the two sets of support plates closer to each other.

[0030] The square column can be installed on the adapter plate in a direction perpendicular to the support plate, with the inner end of the square column facing the side of the support plate.

[0031] The clamping bolt is threadedly connected to the adapter plate, and the inner end of the clamping bolt is driven to engage with the outer end of the square column, which is used to push the square column to press the support plate to achieve position locking.

[0032] As a further aspect of the present invention: the drive unit includes a hydraulic motor, two meshing moving gears, and a sprocket transmission pair consisting of a sprocket and a chain;

[0033] The hydraulic motor is fixedly mounted on the adapter plate, and the output end of the hydraulic motor is connected to one of the moving gears.

[0034] Each moving gear is connected to the axle on the support plate on the same side via a set of sprocket transmission pairs, so as to drive the wire feeding guide wheels on both sides to rotate synchronously in opposite directions to clamp and convey the cable.

[0035] As a further embodiment of the present invention: a dust baffle is provided at the slot on the rear side of the mounting bracket;

[0036] The dustproof frame includes two sets of take-up and release shafts, a roll sleeve, and a dustproof film. The two sets of take-up and release shafts are rotatably installed at the left and right ends of the rear side of the mounting frame, respectively. A roll sleeve is fixedly fitted on each take-up and release shaft. The dustproof film is wound on the roll sleeve, and the free end of the dustproof film is fixedly connected to the reciprocating slider.

[0037] As the reciprocating slider moves left and right, it causes the dust-proof film on the corresponding side to expand and contract synchronously, so as to continuously cover the slot on the back side of the mounting bracket.

[0038] As a further aspect of the present invention: the wire feeding end of the adapter plate is provided with an arc-shaped adjustment groove, the center of the arc-shaped adjustment groove coincides with the central axis of the corresponding side moving gear;

[0039] The axle passes through the arc-shaped adjustment groove, and an arc-shaped plate is sleeved on the axle. The arc-shaped plate slides in conjunction with the arc-shaped adjustment groove to keep the center distance between the axle and the moving gear constant when the support plate spacing is adjusted.

[0040] Compared with the prior art, the beneficial effects of the present invention are:

[0041] This device uses a reciprocating slider to drive the adapter plate to move back and forth, and with the forward movement of the transport vehicle, it achieves S-shaped laying of the transmission cable. The adapter plate is hinged to the reciprocating slider and can rotate freely to adjust the height difference between the end of the adapter plate and the bottom of the trench, adapting to changes in trench depth and maintaining the stability of the S-shaped laying path. At the same time, the fixed guide wheel group and the moving guide wheel group work together to maintain stable and accurate guidance of the transmission cable when the adapter plate is rotating and reciprocating, avoiding cable deviation or jamming.

[0042] This device has a hydraulic motor installed in the adapter plate. The hydraulic motor drives the wire feeding guide wheel to rotate and pull the transmission cable. The wire feeding guide wheel is located at the end of the adapter plate, which can avoid an excessive height difference between the output end of the transmission cable and the bottom of the trench. The traction of the wire feeding guide wheel can also prevent the transmission cable from getting stuck in the reciprocating mechanism, ensuring smooth delivery. At the same time, the support plate is movable, so the spacing of the wire feeding guide wheel that holds the transmission cable can be adjusted, which is convenient for pulling transmission cables of different diameters.

[0043] This device has a dust baffle installed at the slot on the rear side of the mounting frame. The dust baffle film on the dust baffle blocks dust, thereby reducing the possibility of sand and gravel entering the slot of the mounting frame in the desert and protecting the ball screw. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the assembly structure of the mounting bracket and adapter plate in an embodiment of the present invention.

[0045] Figure 2 This is a schematic diagram of the mating structure of the transmission components in an embodiment of the present invention.

[0046] Figure 3 This is a schematic diagram of the adapter plate structure in an embodiment of the present invention.

[0047] Figure 4 This is a schematic diagram of the arc-shaped plate installation structure in an embodiment of the present invention.

[0048] Figure 5 This is a schematic diagram of the transmission structure of the wire feeding guide wheel drive component in an embodiment of the present invention.

[0049] Figure 6 This is a schematic diagram of the square column fixed support plate structure in an embodiment of the present invention.

[0050] Figure 7 This is a schematic diagram of the dust baffle structure in an embodiment of the present invention.

[0051] Figure 8 This is a schematic diagram of the power cable transmission path structure in an embodiment of the present invention.

[0052] In the diagram: 11-Mounting bracket, 12-Limiting plate, 13-Arc-shaped adjusting groove, 14-Limiting fixing hole, 15-Positioning rod, 16-Positioning plate, 17-Adjusting rod, 18-Anti-detachment pin, 21-Fixed guide wheel assembly, 22-Moving guide wheel assembly, 23-Adapter frame, 231-Reinforcing guide rod, 24-Adjusting guide wheel, 25-Wire feeding guide wheel, 26-Axle, 27-Arc-shaped plate, 281-Support plate, 282-Baffle, 283-Thrust spring, 284-Pressure bolt, 285-Square Column, 286-guide shaft, 287-synchronization plate, 31-adapter plate, 311-arc-shaped adjustment groove, 32-cable tray, 41-hydraulic motor, 42-pulley, 43-moving gear, 44-sprocket, 45-hydraulic pump, 51-servo motor, 511-drive pulley, 52-ball screw, 521-driven pulley, 53-reciprocating slider, 60-dust baffle, 61-dust baffle film, 62-sleeve, 63-rewinding shaft, 64-rewinding pulley, 70-power cable. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0055] Please see Figures 1-8 The present invention provides an S-shaped convenient laying device for photovoltaic power transmission cables, including a mounting frame 11, a reciprocating slider 53, an adjusting rod 17, an adapter plate 31, a wire feeding guide wheel 25, a guide wheel assembly, and a dust baffle 60.

[0056] like Figure 1 and Figure 2As shown, the mounting frame 11 is a cast iron part, and an adapter bracket is welded to the lower side of the mounting frame 11. The adapter bracket can be fixed to the transport vehicle by bolts, thereby fixing the device to the transport vehicle. The transport vehicle needs to be equipped with a cable unwinding rack for unwinding and smoothly unwinding the coiled power cable 70.

[0057] A reciprocating slider 53 is slidably connected to the inner wall of the mounting bracket 11. A ball screw 52 is rotatably mounted on the inner side of the mounting bracket 11, and the optical shaft section of the ball screw 52 is connected to the inner wall of the mounting bracket 11 through a bearing. A ball nut is mounted on the reciprocating slider 53, and the ball screw 52 is connected to the reciprocating slider 53 through the ball nut.

[0058] A servo motor 51 is installed inside the mounting bracket 11. A drive pulley 511 is connected to the outside of the output shaft of the servo motor 51. One end of the ball screw 52 extends out of the mounting bracket 11 and is connected to a driven pulley 521. The drive pulley 511 and the driven pulley 521 are connected by a belt drive. The servo motor 51 drives the ball screw 52 to rotate through the drive pulley 511, the belt, and the driven pulley 521. The ball screw 52 drives the reciprocating slider 53 to slide back and forth through the ball nut.

[0059] like Figure 1 and Figure 2 As shown, the mounting bracket 11 is also equipped with a photoelectric sensor, a controller, and a battery. The photoelectric sensor, servo motor 51, and battery are connected to the controller via wires. The user pre-stores a threshold distance for the reciprocating slider 53's reciprocating movement in the controller. The photoelectric sensor monitors the actual distance of the reciprocating slider 53's reciprocating movement and transmits the monitoring signal to the controller. When the distance the reciprocating slider 53 moves to one side reaches the preset threshold, the controller controls the servo motor 51 to reverse, thereby driving the reciprocating slider 53 to slide to the other side. The distance the reciprocating slider 53 moves is slightly less than the trench width of the pre-buried transmission cable 70 to prevent the adapter plate 31 from hitting the trench sidewall during reciprocating movement.

[0060] like Figure 7 As shown, a dust baffle 60 is provided on the rear side of the inner cavity of the mounting bracket 11 to cover the opening on the rear side of the inner cavity of the mounting bracket 11 and prevent dust from entering the inner cavity of the mounting bracket 11.

[0061] The dust shield 60 includes a dust shield membrane 61, a sleeve 62, a take-up and release shaft 63, and a take-up and release pulley 64. There are two sets of take-up and release shafts 63, which are rotatably mounted at the left and right ends of the rear side of the mounting frame 11, respectively. The sleeve 62 is fitted over the outside of the take-up and release shaft 63 and can rotate synchronously with it. The dust shield membrane 61 is wound around the outside of the sleeve 62, with one end of the membrane wound onto the sleeve 62 and the other end connected to the reciprocating slider 53. By covering the slot on the rear side of the mounting frame 11, i.e., the connection between the inner cavity of the mounting frame 11 and the outside, the dust shield membrane 61 effectively reduces the risk of sand and gravel entering the inner cavity of the mounting frame 11 in a desert environment, thus protecting the ball screw 52.

[0062] The dustproof film 61 can be made of a single-layer aluminum coil or other flexible, wear-resistant plastic film with a thickness of 0.2mm. The lower end of the take-up / unwind shaft 63 extends out of the sleeve 62 and is connected to a take-up / unwind pulley 64. The two take-up / unwind pulleys 64 are connected by a belt for transmission. When the reciprocating slider 53 moves to the left, it drives the dustproof film 61 on the right side to unwind, which in turn drives the sleeve 62 and take-up / unwind shaft 63 to rotate. The right take-up / unwind shaft 63 drives the right take-up / unwind pulley 64 to rotate, which in turn drives the left take-up / unwind pulley 64 to rotate synchronously via a belt. The left take-up / unwind pulley 64 drives the sleeve 62 and take-up / unwind shaft 63 on the left side to rotate, thereby driving the dustproof film 61 on the left side to wind up. To prevent slippage between the take-up / unwind pulley 64 and the belt, the take-up / unwind pulley 64 and the belt can be a combination of a synchronous pulley and a synchronous belt.

[0063] like Figure 1 and Figure 2 As shown, a transition plate 31 is hinged to one side of the reciprocating slider 53 extending from the mounting bracket 11. The transition plate 31 can rotate relative to the reciprocating slider 53 about the hinge axis. A wire feeding guide wheel 25 is rotatably mounted on the other end of the transition plate 31. The wire feeding guide wheel 25 is used to clamp the transmission cable 70 and pull and transport it. There are at least two sets of wire feeding guide wheels 25, and in this embodiment, two sets are preferred. A hydraulic motor 41 is mounted on the transition plate 31. The hydraulic motor 41 drives the wire feeding guide wheel 25 to rotate, and the friction between the wire feeding guide wheel 25 and the transmission cable 70 drives the transmission cable 70 forward. A hydraulic pump 45 is also mounted on the mounting bracket 11. The hydraulic pump 45 is connected to a battery via a wire and to a hydraulic motor 41 via a pipe. The hydraulic pump 45 provides hydraulic power to the hydraulic motor 41.

[0064] like Figure 1 and Figure 2As shown, limiting plates 12 are installed on both the left and right sides of the mounting frame 11, and arc-shaped adjustment grooves 13 are provided on the limiting plates 12. The adapter plate 31 is slidably connected to the adjusting rod 17. The two ends of the adjusting rod 17 pass through the arc-shaped adjustment grooves 13 on both sides, and the two ends of the adjusting rod 17 are connected to the positioning plates 16 after extending out of the arc-shaped adjustment grooves 13. The center of the arc-shaped adjustment groove 13 is collinear with the central axis of the hinge axis of the adapter plate 31, so that when the adjusting rod 17 slides in the arc-shaped adjustment groove 13, it can drive the adapter plate 31 to rotate around the hinge axis, thereby adjusting the distance between the lower end of the adapter plate 31 and the bottom of the trench to meet the needs of laying the transmission cable 70 in trenches of different depths.

[0065] The outer side of the arc-shaped adjustment groove 13 is provided with equal-angled limiting fixing holes 14, and the positioning plate 16 is provided with positioning holes corresponding to the limiting fixing holes 14. Before sliding the adjustment rod 17, the positioning rod 15 on the positioning plate 16 is first pulled out from the positioning holes and the limiting fixing holes 14, and then the rotation angle of the adapter plate 31 is adjusted by sliding the adjustment rod 17. After the adjustment is completed, the positioning rod 15 is inserted into the positioning hole and the corresponding limiting fixing hole 14 at the same time to fix the adjustment rod 17. The other end of the positioning rod 15 is inserted with an anti-detachment pin 18 to prevent the positioning rod 15 from falling off during the vibration of the transport vehicle. Two positioning rods 15 are inserted on a single positioning plate 16, and the two positioning rods 15 are welded to the same steel plate to improve the reliability of positioning.

[0066] like Figure 1 , Figure 2 and Figure 8 As shown, the guide wheel assembly includes a fixed guide wheel assembly 21 and a moving guide wheel assembly 22. The fixed guide wheel assembly 21 is rotatably mounted on the mounting frame 11, and the fixed guide wheel assembly 21 remains fixed on the mounting frame 11.

[0067] A reciprocating slider 53 extends out of the mounting bracket 11 and is connected to an adapter bracket 23. A movable guide wheel assembly 22 is rotatably mounted on the adapter bracket 23, and moves synchronously with the reciprocating movement of the reciprocating slider 53. An adjusting guide wheel 24 is rotatably mounted on the adapter plate 31. Both the fixed guide wheel assembly 21 and the movable guide wheel assembly 22 include one set of horizontal axis guide wheels and two sets of vertical axis guide wheels. The two sets of vertical axis guide wheels are located on both sides of the power transmission cable 70, and all vertical axis guide wheels are located between the horizontal axis guide wheels of the fixed guide wheel assembly 21 and the horizontal axis guide wheels of the movable guide wheel assembly 22.

[0068] The cable path of the transmission cable 70 is as follows: the transmission cable 70 released from the cable release rack first passes through the horizontal and vertical guide wheels of the fixed guide wheel group 21, then through the horizontal and vertical guide wheels of the moving guide wheel group 22, and then through the adjusting guide wheel 24 and the feeding guide wheel 25 before being discharged. Through the coordinated cooperation of the fixed guide wheel group 21 and the moving guide wheel group 22, the transmission cable 70 can be stably guided when the adapter plate 31 is in a rotating or reciprocating state, thus preventing the transmission cable 70 from deviating or getting stuck.

[0069] During the left-right movement of the reciprocating slider 53, the transmission cable 70 will deviate. The arrangement of two sets of longitudinal guide wheels ensures that at least one set of longitudinal guide wheels can guide the transmission cable 70 in any working state, thereby ensuring that the section of transmission cable 70 between the longitudinal and transverse guide wheels in the same guide wheel set remains relatively straight. At the same time, the rotation of each guide wheel can prevent the transmission cable 70 from being scratched or bumped during transportation, thus protecting the outer insulation layer of the transmission cable 70.

[0070] like Figure 2 As shown, a reinforcing guide rod 231 is connected between the two limiting plates 12, and the adapter frame 23 is movably sleeved on the outside of the reinforcing guide rod 231. The reinforcing guide rod 231 is preferably a cylindrical linear guide rail, and the adapter frame 23 is slidably connected to the reinforcing guide rod 231 via a slider on the cylindrical linear guide rail. By reinforcing and supporting the adapter frame 23 with the reinforcing guide rod 231, the operational stability of the adapter frame 23 and the moving guide wheel assembly 22 during reciprocating movement can be improved.

[0071] like Figure 3 , Figure 4 and Figure 6 As shown, a support plate 281 is placed inside the cavity of the adapter plate 31. A wheel axle 26 is rotatably connected to the support plate 281. One end of the wheel axle 26 extends out of the adapter plate 31, and a wire feeding guide wheel 25 is fixedly sleeved on the outside of the extended end of the wheel axle 26. The wheel axle 26 is rotatably connected to the support plate 281 through a bearing, and the wheel axle 26 and the wire feeding guide wheel 25 move synchronously with the support plate 281.

[0072] There are two sets of support plates 281. When the two sets of support plates 281 move away from or close to each other, the distance between the corresponding wire feeding guide rollers 25 on both sides of the support plates 281 can be changed, thereby clamping the transmission cables 70 of different diameters. The front and rear sides of both sets of support plates 281 abut against the inner wall of the adapter plate 31, so that the support plates 281 can only slide in the left and right direction in the inner cavity of the adapter plate 31, thereby ensuring that the multiple wire feeding guide rollers 25 are always in the same plane.

[0073] A guide hole is provided on the support plate 281, and a guide shaft 286 is inserted into the guide hole. Both ends of the guide shaft 286 extend out of the support plates 281 on both sides and are connected to baffles 282. The baffles 282 are used to prevent the guide shaft 286 from separating from the support plates 281. A thrust spring 283 is connected between the baffles 282 and the support plates 281. The thrust spring 283 is sleeved on the outside of the guide shaft 286 and is used to push the support plates 281 on both sides closer together.

[0074] All thrust springs 283 are of the same model. The elastic thrust of the thrust springs 283 causes the wire feeding guide wheel 25 to clamp the transmission cable 70. A square post 285 is slidably connected to the adapter plate 31. The square post 285 can slide towards or away from the support plate 281. One end of the square post 285 extends out of the adapter plate 31 and is connected to a synchronization plate 287. The synchronization plate 287 is provided with a clamping bolt 284. The clamping bolt 284 is rotatably connected to the synchronization plate 287. The threaded end of the clamping bolt 284 passes through the synchronization plate 287 and is threadedly connected to the adapter plate 31.

[0075] When the clamping bolt 284 is tightened, the clamping bolt 284 drives the square column 285 to move closer to the support plate 281 via the synchronous plate 287, thus pressing the support plate 281. When the clamping bolt 284 is loosened, the clamping bolt 284 drives the square column 285 to move away from the support plate 281 via the synchronous plate 287, and the square column 285 releases the support plate 281. Both the support plate 281 and the square column 285 have corresponding rough surfaces on their opposite sides. The friction between these rough surfaces increases the stability of the support plate 281 after it is pressed, preventing slippage. Preferably, the rough surface on the support plate 281 is formed by stamping to create a concave rough surface, while the rough surface on the square column 285 is preferably a convex rough surface. The convex rough surface can be inserted into the inner side of the concave rough surface, allowing the rough surfaces on both sides to press and engage with each other, thereby improving the locking effect.

[0076] like Figure 3 and Figure 5As shown, two meshing moving gears 43 are rotatably mounted on the adapter plate 31, and the two moving gears 43 mesh with each other for transmission. A sprocket 44 is fitted onto the shaft of each moving gear 43, and the sprocket 44 on each moving gear 43 drives the axle 26 on the same side support plate 281 to rotate. A sprocket 44 is also fitted onto the outer side of the axle 26, and the sprocket 44 on the shaft of the moving gear 43 is connected to the sprocket 44 on the axle 26 via chain transmission. When there are two or more axles 26 on a support plate 281, two sprockets 44 are fitted onto each axle 26, and the sprockets 44 on adjacent axles 26 are also connected via chain transmission. A pulley 42 is also connected to the shaft of one of the moving gears 43, and a pulley 42 is also connected to the shaft of the hydraulic motor 41. The pulley 42 on the shaft of the hydraulic motor 41 is connected to the pulley 42 on the shaft of the moving gear 43 via a belt for transmission. The adapter plate 31 has a cable tray 32 for arranging the oil inlet and return pipes of the hydraulic motor 41. One end of the oil inlet and return pipes is connected to the oil inlet and return port of the hydraulic motor 41, respectively, and the other end of each pipe is connected to a rotary joint, which is fixedly mounted on the adapter plate 31. The oil outlet and return ends of the hydraulic pump 45 are also connected to rotary joints. The rotary joint at the oil outlet end of the hydraulic pump 45 is connected to the rotary joint on the oil inlet pipe through a pipe, and the rotary joint at the oil return end is connected to the rotary joint on the oil return pipe through a pipe. Since the adapter plate 31 moves the oil pipes during reciprocating motion, using rotary joints to connect the pipes can prevent excessive twisting of the oil pipes at the connection points.

[0077] like Figure 4 As shown, the adapter plate 31 has an arc-shaped adjustment groove 311, the center of which is located on the central axis of the moving gear 43. When the two support plates 281 move away from or closer to each other, the axle 26 slides along the arc-shaped adjustment groove 311, keeping the distance between the axle 26 and the moving gear 43 constant, thus ensuring that the transmission between the sprocket 44 and the chain is always in an effective working state. An arc-shaped plate 27 is slidably installed on the inner side of the arc-shaped adjustment groove 311, and the axle 26 is connected to the arc-shaped plate 27 through a bearing. The adapter plate 27 prevents the bearing on the axle 26 from directly contacting the groove wall of the arc-shaped adjustment groove 311, thereby improving the installation stability of the bearing and reducing bearing wear.

[0078] The adapter plate 31 has a protective cover installed at the end where the hydraulic pump 45 and the wire feeding guide wheel 25 are located. The protective cover is detachably installed on the adapter plate 31 by bolts to prevent the hydraulic pump 45, the wire feeding guide wheel 25 and the sprocket 44 from directly contacting the external sand and soil, thereby reducing the wear caused by the sand and soil on the transmission components.

[0079] In summary, during operation, the cable 70 released from the cable laying frame is first passed sequentially through the horizontal and vertical guide wheels of the fixed guide wheel group 21, the horizontal and vertical guide wheels of the moving guide wheel group 22, the adjusting guide wheel 24, and the feeding guide wheel 25. Then, the positioning rod 15 is pulled out, and the adjusting rod 17 is slid along the arc-shaped adjusting groove 13. The adjusting rod 17 drives the adapter plate 31 to rotate around the hinge axis, thereby adjusting the distance between the lower end of the adapter plate 31 and the bottom of the trench. This ensures a suitable height difference between the cable outlet end of the feeding guide wheel 25 and the bottom of the trench, preventing the cable 70 from falling too high and affecting the S-shaped laying effect. After adjustment, the positioning rod 15 is inserted into the positioning hole and the corresponding limiting fixing hole 14 to fix the adjusting rod 17.

[0080] Subsequently, the transport vehicle travels along the trench's extension direction above it. The hydraulic pump 45 is activated, supplying oil to the hydraulic motor 41 via oil lines. The hydraulic motor 41 rotates, driving the gear 43 via pulley 42 and belt. The gear 43, through sprocket 44 and chain, drives the axle 26 to rotate, which in turn drives the cable guide wheel 25. As the cable guide wheel 25 rotates, friction pulls the cable 70 forward, causing it to fall into the trench. Simultaneously, the transport vehicle moves forward along the trench, and the servo motor 51 drives the ball screw 52 to rotate. The ball screw 52, ​​through ball nuts, drives the reciprocating slider 53 to slide back and forth, causing the adapter plate 31 to move left and right. Under the combined action of the transport vehicle's forward movement and the adapter plate 31's left and right reciprocating movement, the cable 70 falling into the trench forms an S-shaped laying path.

[0081] During the conveying process of the transmission cable 70, the fixed guide wheel assembly 21 and the moving guide wheel assembly 22 work together to guide the transmission cable 70, preventing it from deviating or getting stuck during reciprocating movement. The moving guide wheel assembly 22 moves synchronously with the reciprocating slider 53, ensuring smooth conveying of the transmission cable 70 at all positions during reciprocating movement. The cable delivery guide wheel 25 actively pulls the transmission cable 70, effectively preventing it from getting stuck in the reciprocating mechanism due to excessive conveying resistance, thus ensuring smooth conveying.

[0082] During the reciprocating movement of the reciprocating slider 53, the dust-blocking film 61 of the dust-blocking frame 60 retracts and expands with the movement of the reciprocating slider 53, always keeping the connection between the inner cavity of the mounting frame 11 and the outside world blocked, effectively preventing sand and dust from entering the inner cavity of the mounting frame 11 and protecting precision components such as the ball screw 52 from sand and dust wear.

[0083] When it is necessary to replace the transmission cable 70 with one of different diameters, loosen the clamping bolt 284 to release the support plate 281 from the square column 285. Under the elastic thrust of the thrust spring 283, the support plates 281 on both sides move closer to each other or are manually adjusted to an appropriate distance to accommodate the diameter of the new transmission cable 70. After adjustment, tighten the clamping bolt 284 to press the support plate 281 against the square column 285. The friction between the rough surfaces locks the support plate 281 in its current position, completing the adjustment of the spacing of the cable feed guide rollers 25.

[0084] It should be noted that, in this invention, unless otherwise explicitly specified and limited, the terms "sliding," "rotating," "fixed," and "equipped" should be interpreted broadly. For example, they can refer to welded connections, bolted connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0085] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A convenient S-shaped laying device for photovoltaic power transmission cables, comprising a mounting frame (11) for fixing to a transport vehicle, wherein the mounting frame (11) is provided with a reciprocating slider (53) that can move back and forth in the left and right direction, characterized in that, It also includes an adapter plate (31), a height adjustment assembly, and an active cable feeding assembly; One end of the adapter plate (31) is hinged to the reciprocating slider (53), and the other end of the adapter plate (31) is the wire feeding end for outputting the power cable (70); The height adjustment component is connected between the mounting bracket (11) and the adapter plate (31) to adjust the swing angle of the adapter plate (31) around the hinge axis, so as to adjust the height difference of the wire feeding end relative to the bottom of the trench. The active wire feeding assembly is installed at the wire feeding end of the adapter plate (31). The active wire feeding assembly includes at least two sets of wire feeding guide wheels (25) and a drive unit. Each set of wire feeding guide wheels (25) is arranged opposite to each other to clamp the transmission cable (70). The drive unit is connected to the wire feeding guide wheels (25) for driving the wire feeding guide wheels (25) to rotate so as to actively pull the transmission cable (70) outward.

2. The S-shaped convenient laying device for photovoltaic power transmission cables according to claim 1, characterized in that, The mounting bracket (11) is equipped with a servo motor (51) and a ball screw (52). The ball screw (52) is mounted in the mounting bracket (11) and rotates in the left and right directions. The reciprocating slider (53) is driven by the ball screw (52) through the ball nut. The output end of the servo motor (51) is connected to the ball screw (52) for driving the ball screw (52) to rotate, thereby driving the reciprocating slider (53) to move back and forth in the left and right directions.

3. The S-shaped convenient laying device for photovoltaic power transmission cables according to claim 1, characterized in that, The height adjustment assembly includes a limiting plate (12), an adjusting rod (17), and a positioning locking component; The limiting plate (12) is fixedly installed on the side of the mounting frame (11). An arc-shaped adjustment groove (13) is provided on the limiting plate (12). The center of the arc-shaped adjustment groove (13) coincides with the hinge axis of the adapter plate (31). The adjusting rod (17) passes through the arc-shaped adjusting groove (13), and the adjusting rod (17) is slidably connected to the adapter plate (31); The positioning locking component is used to lock the adjusting rod (17) in the target position of the arc-shaped adjusting groove (13) to lock the swing angle of the adapter plate (31).

4. The S-shaped convenient laying device for photovoltaic power transmission cables according to claim 3, characterized in that, The positioning and locking component includes a positioning plate (16) and a positioning rod (15). The positioning plate (16) is fixed to the end of the adjusting rod (17) extending out of the arc-shaped adjusting groove (13), and the limiting plate (12) has a plurality of limiting fixing holes (14) distributed circumferentially along the outer side of the arc-shaped adjusting groove (13). The positioning rod (15) can be simultaneously inserted into the positioning plate (16) and the corresponding limiting fixing hole (14) to lock the position of the adjusting rod (17).

5. The S-type convenient laying device for photovoltaic power transmission cables according to any one of claims 1-4, characterized in that, It also includes a guide wheel assembly, which includes a fixed guide wheel assembly (21) and a moving guide wheel assembly (22). The fixed guide wheel assembly (21) is rotatably mounted on the mounting frame (11), and the reciprocating slider (53) is fixed with a transfer frame (23). The moving guide wheel assembly (22) is rotatably mounted on the transfer frame (23) and moves synchronously with the reciprocating slider (53). The adapter plate (31) is also rotatably mounted with a guide wheel (24). The power transmission cable (70) is guided sequentially by the fixed guide wheel group (21), the moving guide wheel group (22), and the adjusting guide wheel (24) before entering the wire feeding guide wheel (25).

6. The S-type convenient laying device for photovoltaic power transmission cables according to any one of claims 1-4, characterized in that, The active wire feeding assembly also includes two sets of support plates (281) and a spacing adjustment and locking mechanism; Two sets of support plates (281) are slidably mounted on the wire feeding end of the adapter plate (31). Each set of support plates (281) is rotatably mounted with a wheel axle (26). The wire feeding guide wheel (25) is fixedly sleeved on the corresponding wheel axle (26). The spacing adjustment and locking mechanism is used to adjust the relative spacing between the two sets of support plates (281) and lock them in place to accommodate power transmission cables (70) of different diameters.

7. The convenient S-shaped laying device for photovoltaic power transmission cables according to claim 6, characterized in that, The spacing adjustment and locking mechanism includes a guide shaft (286), a thrust spring (283), a square column (285), and a clamping bolt (284). The guide shaft (286) passes through two sets of support plates (281), and baffles (282) are fixed at both ends of the guide shaft (286). The thrust spring (283) is sleeved on the guide shaft (286), and its two ends abut against the baffles (282) and the support plates (281) respectively, for pushing the two sets of support plates (281) closer to each other. The square column (285) can be installed on the adapter plate (31) in a direction perpendicular to the support plate (281), and the inner end of the square column (285) is set opposite to the side of the support plate (281). The clamping bolt (284) is threadedly connected to the adapter plate (31). The inner end of the clamping bolt (284) is driven to cooperate with the outer end of the square column (285) to push the square column (285) to press the support plate (281) to achieve position locking.

8. The convenient S-shaped laying device for photovoltaic power transmission cables according to claim 6, characterized in that, The drive unit includes a hydraulic motor (41), two meshing moving gears (43), and a sprocket (44) and chain forming a sprocket transmission pair; The hydraulic motor (41) is fixedly installed on the adapter plate (31), and the output end of the hydraulic motor (41) is connected to one of the moving gears (43) for transmission. Each moving gear (43) is connected to the axle (26) on the same side support plate (281) via a set of sprocket transmission pairs, so as to drive the wire guide wheels (25) on both sides to rotate synchronously in opposite directions to clamp the transmission cable (70).

9. The convenient S-shaped laying device for photovoltaic power transmission cables according to claim 1, characterized in that, A dust baffle (60) is provided at the slot on the rear side of the mounting bracket (11). The dustproof frame (60) includes two sets of take-up and release shafts (63), a sleeve (62) and a dustproof film (61). The two sets of take-up and release shafts (63) are respectively rotatably installed on the left and right ends of the rear side of the mounting frame (11). A sleeve (62) is fixedly fitted on each take-up and release shaft (63). The dustproof film (61) is wound on the sleeve (62). The free end of the dustproof film (61) is fixedly connected to the reciprocating slider (53). When the reciprocating slider (53) moves left and right, it drives the dustproof film (61) on the corresponding side to expand and contract synchronously, so as to continuously cover the slot on the back side of the mounting bracket (11).

10. The convenient S-shaped laying device for photovoltaic power transmission cables according to claim 8, characterized in that, The wire feeding end of the adapter plate (31) is provided with an arc-shaped adjustment groove (311), and the center of the arc-shaped adjustment groove (311) coincides with the central axis of the corresponding side moving gear (43). The axle (26) passes through the arc-shaped adjustment groove (311), and an arc-shaped plate (27) is sleeved on the axle (26). The arc-shaped plate (27) slides in conjunction with the arc-shaped adjustment groove (311) to keep the center distance between the axle (26) and the moving gear (43) constant when the spacing of the support plate (281) is adjusted.

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