Power cable laying construction equipment and method

Abstract

The invention belongs to the technical field of power cable laying, and particularly relates to power cable laying construction equipment and method.The power cable laying construction equipment comprises a base, a lifting guide mechanism is arranged on the upper side of a front frame of the base, and a variable pitch detection mechanism is arranged on the lifting guide mechanism; the lifting guide mechanism guides the cable to be lifted to a preset height, the advancing position of the cable is detected through the variable-pitch detection mechanism, a top plate is fixedly arranged on the base, and a bottom support mechanism is arranged in the middle of the top plate. According to the invention, the front and rear pressing boosting sections are arranged, when a cable enters equipment, the front pressing boosting section is automatically switched to clamp the cable, and the rear pressing boosting section keeps clamping the traction rope, so that the boosting force is ensured not to be interrupted in the switching process. The problem that boosting force of traditional equipment disappears temporarily due to the fact that a crawler belt is completely opened is solved, the risks that the cable speed is suddenly reduced, a pulling rope is overloaded and broken or the cable is blocked are effectively prevented, and the continuity and safety of laying construction are improved.

Description

Technical Field

[0001] This invention belongs to the field of power cable laying technology, and particularly relates to power cable laying equipment and methods. Background Technology

[0002] Existing tracked cable conveyors require manual adjustment of the track spacing during operation. Specifically, when the traction rope passes first, the two tracks clamp the rope to provide propulsion. When the traction rope pulls the cable into the conveyor, because the cable diameter is generally larger than the rope, the track spacing must be manually widened first. Once the cable is fully inside the clamping section, the track spacing is readjusted to clamp the cable and continue conveying. This traditional tracked conveyor has the following significant drawbacks in actual long-distance power cable laying: 1. During the switch from clamping the traction rope to clamping the cable, the two tracks that were originally clamping the traction rope must be fully opened. Since the tracks have a fixed length, typically 1-1.5 meters, the entire clamping section of the track is completely idle during the period from when the tracks are opened until the cable enters and is re-clamped, completely losing its clamping and propulsive effect on the traction rope. This process causes a brief interruption in the boost force exerted by the conveyor on the traction rope and cable in the current section, and this phenomenon occurs sequentially on each tracked conveyor along the cable laying path. Especially when the traction rope pulls the cable to the middle and later stages of the conveyor, the cumulative weight of the cable itself increases, and the demand for continuous boost force increases significantly. The brief interruption of boost force may not only cause a sudden drop in cable conveying speed and a sudden increase in stress on the traction rope, but may also cause the cable to bend or get stuck on the laying path, or even break due to overload of the traction rope, seriously affecting the safety and continuity of the overall laying construction.

[0003] 2. During long-distance cable laying, dozens of tracked conveyors are often required to be deployed sequentially along the path. Under the current operating model, when the cable is pulled through each conveyor by a traction rope, a dedicated operator is needed to monitor the process and manually adjust the track spacing after the cable enters. This model not only results in a large demand for on-site operators but also leads to high labor costs. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides equipment and methods for laying power cables, which solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this application provides the following technical solution: The present invention provides power cable laying equipment, including a base. A lifting and guiding mechanism is provided on the upper side of the front frame of the base. A pitch detection mechanism is provided on the lifting and guiding mechanism. The lifting and guiding mechanism guides the cable to a predetermined height and detects the cable's travel position through the pitch detection mechanism. A top plate is fixedly provided on the base. A bottom support mechanism is provided in the middle of the top plate. Two symmetrically distributed booster mechanisms are also provided on the top plate. A drive mechanism is provided between the base and the two booster mechanisms. The booster mechanism includes a housing connected to the drive mechanism and having an open structure on one side. Two sets of clamping toothed rollers, a drive roller set, and three sets of tensioning components are provided inside the housing. The two sets of clamping toothed rollers are symmetrically distributed front and rear. The two sets of clamping toothed rollers, the drive roller set, and the three sets of tensioning components are connected by a toothed belt drive. Two electric push rods are also fixedly provided inside the housing, and the electric push rods are connected to the corresponding clamping toothed roller sets. Two opposing clamping toothed rollers, together with their corresponding toothed belts, form a clamping booster section. The two clamping booster sections switch from clamping the traction rope to clamping the cable in sequence. During the switching process, the second clamping booster section is in a continuous pressure-maintaining boosting state. After the first clamping booster section completes the switching, the second clamping booster section performs the same switching action again.

[0006] According to an advantageous embodiment, the lifting guide mechanism includes a U-shaped bracket fixedly mounted on the base, with height-adjustable fixing sleeves provided on both vertical sections of the bracket, and an inclined guide plate fixedly connected between the two fixing sleeves.

[0007] According to an advantageous embodiment, the variable pitch detection mechanism includes a rotating shaft rotatably disposed between two vertical sections of the support, with torsion springs connected to the corresponding vertical sections of the support at both ends of the rotating shaft, an angle sensor disposed on the rotating shaft, and I-shaped clamping wheels fixedly connected to the rotating shaft via two connecting plates.

[0008] According to an advantageous embodiment, the base support mechanism includes a horizontal mounting base fixedly disposed on the upper side of the top plate and with its opening facing upward. A support plate is slidably connected to the port of the horizontal mounting base. Multiple support wheels are rotatably disposed on the upper side of the support plate along its length direction. Multiple first springs are fixedly disposed inside the mounting base, and the upper ends of the multiple first springs are fixedly connected to the lower side of the support plate.

[0009] According to an advantageous embodiment, the pressing toothed roller assembly includes a roller frame fixedly connected to a corresponding electric actuator, on which push toothed rollers are rotatably arranged, evenly distributed front and rear, and the push toothed rollers mesh with the inner side of the toothed belt.

[0010] According to an advantageous embodiment, the drive roller assembly includes an active toothed roller and a driven toothed roller, both rotatably disposed within the housing. The active and driven toothed rollers are symmetrically distributed front and rear, and both the active and driven toothed rollers mesh with the inner rack of the toothed belt. A drive motor is fixedly disposed on the upper side of the housing at a position corresponding to the active toothed roller, and the output shaft of the drive motor is fixedly connected to the upper end of the corresponding active toothed roller.

[0011] According to an advantageous embodiment, two sets of tensioning components are symmetrically arranged inside the housing, one set of tensioning components is arranged between the front and rear roller frames, and the tensioning component includes a vertical mounting base fixedly arranged inside the housing. A groove is opened on the side of the vertical mounting base near the toothed belt. Multiple second springs are fixedly arranged in the groove. The same end of the multiple second springs is fixedly connected to a sliding plate. The sliding plate is slidably connected to the corresponding groove. A tensioning roller is rotatably arranged on the side of the sliding plate near the toothed belt. The tensioning roller is rollably connected to the outer side of the corresponding toothed belt.

[0012] According to an advantageous embodiment, the driving mechanism includes a bidirectional screw rotatably disposed between the left and right side walls of the base. The left and right sections of the bidirectional screw are respectively provided with threaded sections with opposite thread directions, and each threaded section is threadedly connected to a driving seat. Two columns are fixedly disposed on the upper side of the driving seat. The upper ends of the two columns on the same driving seat are fixedly connected to the lower side of the outer shell. Four strip-shaped through holes are opened on the top plate, and the columns are movably disposed in the corresponding strip-shaped through holes. Two guide rods symmetrically distributed front and back are fixedly disposed between the left and right inner side walls of the base. The guide rods are slidably connected to the driving seat. One end of the bidirectional screw passes through the corresponding side wall of the base and is fixedly connected to a rotating disk. A hexagonal slot is opened on the rotating disk.

[0013] In addition, this solution also provides a method for laying power cables, which is completed by using the above-mentioned power cable laying equipment, including the following steps: S1, equipment fixing, installing and fixing all the above-mentioned laying equipment along the cable conveying path.

[0014] S2. Connecting the traction rope: Pull the traction rope out from the external traction machine and pass it through the two booster mechanisms of each device for clamping. Then, fix one end of the cable to one end of the traction rope.

[0015] S3. The cable enters the laying equipment for compression and propulsion. The traction rope pulls the cable along the laying path under the traction of the external traction machine. The cable end approaches the laying equipment. The position of the cable end is detected by the lifting guide mechanism in conjunction with the pitch detection mechanism. Then the cable enters the two compression and propulsion sections of the laying equipment for compression and is pushed to move along the laying path.

[0016] S4. The cable is continuously transported and finally laid. The traction rope drives the cable end through all the laying construction equipment on the laying path and finally pushes the cable through all the laying construction equipment until the cable moves to the designated position and the cable laying is completed.

[0017] Compared with existing technologies, the power cable laying equipment and method provided in this invention have the following advantages: This solution uses two clamping and pushing sections. When the cable enters the equipment, the first clamping and pushing section automatically switches to clamp the cable, while the second clamping and pushing section maintains clamping of the traction rope, ensuring uninterrupted pushing force during the switching process. This eliminates the problem of temporary loss of pushing force caused by the fully extended tracks in traditional equipment, effectively preventing risks such as sudden drop in cable speed, traction rope overload breakage, or cable jamming, thus improving the continuity and safety of the laying process. Especially during long-distance transport, it can also reduce the number of laying equipment required, lowering costs. The variable pitch detection mechanism automatically identifies the cable end's travel position, automatically triggering the pushing mechanism to adjust the clamping object when each laying device switches between the traction rope and the cable clamping object. This significantly reduces the number of operators required for long-distance laying, saving labor costs, while improving response speed and operational accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external three-dimensional structure of the present invention.

[0019] Figure 2 This is a top-view planar structural diagram of the present invention.

[0020] Figure 3 This is a schematic diagram of the front view structure of the present invention.

[0021] Figure 4 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0022] Figure 5 This is a top-view cross-sectional planar structural diagram of the present invention.

[0023] Figure 6 This is a top cross-sectional schematic diagram of the tensioning component and toothed belt in this invention.

[0024] Figure 7 This is a top-view cross-sectional diagram showing the state of the traction rope and cable simultaneously within two pressing and pushing sections in this invention.

[0025] Figure 8 This is a schematic diagram showing the state of two adjacent laying construction devices pulling cables in this invention.

[0026] The attached diagram shows the following reference numerals: 1. Base; 2. Lifting and guiding mechanism; 21. Bracket; 22. Fixing sleeve; 23. Guide plate; 3. Variable pitch detection mechanism; 31. Rotating shaft; 32. Angle sensor; 33. Pressure roller; 4. Top plate; 5. Base support mechanism; 51. Horizontal mounting base; 52. Support plate; 53. Support roller; 6. Boosting mechanism; 61. Housing; 62. Pressure toothed roller group; 63. Drive roller group; 64. Tensioning assembly; 641. Vertical mounting base; 642. Second spring; 643. Slide plate; 644. Tensioning roller; 65. Toothed belt; 7. Drive mechanism; 71. Bidirectional screw; 72. Drive seat; 73. Column; 8. Electric actuator; 9. Pressure boosting section; 10. Cable; 11. Traction rope. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1 - Appendix Figure 8 This application will now be described in further detail.

[0028] Please refer to the following: Figures 1-3 The power cable laying equipment includes a base 1, a lifting and guiding mechanism 2 is provided on the upper side of the front frame of the base 1, a pitch detection mechanism 3 is provided on the lifting and guiding mechanism 2, the lifting and guiding mechanism 2 guides the cable 10 to a predetermined height and the pitch detection mechanism 3 detects the travel position of the cable 10, a top plate 4 is fixedly provided on the base 1, a bottom support mechanism 5 is provided in the middle of the top plate 4, and two symmetrically distributed boosting mechanisms 6 are also provided on the top plate 4, and a drive mechanism 7 is provided between the base 1 and the two boosting mechanisms 6.

[0029] In practice, for ease of understanding, the laying path is set horizontally from front to back, and subsequent directions are described based on this. The traction rope 11 is pulled out from the position of the external traction machine and passes from back to front between the left and right boosting mechanisms 6 in each device on the laying path. One end of the traction rope 11 is pulled to the position of the cable 10 and fixedly connected to the end of the cable 10 using a net sleeve connection method. Then, the drive mechanism 7 is manually controlled to drive the two boosting mechanisms 6 to clamp the traction rope 11, so that the traction rope 11 can be clamped and boosted by the corresponding two boosting mechanisms 6 in each area of ​​the laying path. Next, driven by the external traction machine, the traction rope 11 pulls the cable 10 along the laying path from front to back. When the traction rope 11 pulls the cable 10 close to the lifting guide mechanism 2 on the front side of the base 1, the variable pitch detection mechanism 3 detects that the end of the cable 10 is close to the equipment. At this time, the boosting mechanism 6 makes corresponding adjustments. As the traction rope 11 moves, it can simultaneously clamp and boost the part of the traction rope 11 and the cable 10 between the left and right boosting mechanisms 6. This ensures that when the traction rope 11 and the cable 10 switch between the left and right boosting mechanisms 6, there is always a boosting force on the traction rope 11 and the cable 10 at this position. This avoids the problem of the boosting force in this area disappearing temporarily due to the switching of the clamping and boosting objects between the left and right boosting mechanisms 6, and ensures that the laying and transportation of the entire cable 10 is more stable.

[0030] See Figure 1 and Figure 4 To ensure that the cable 10 is clamped and propelled at a suitable height when entering between the two left and right booster mechanisms 6, the lifting and guiding mechanism 2 includes a U-shaped bracket 21 fixedly mounted on the base 1. Each of the two vertical sections of the bracket 21 is equipped with a height-adjustable fixing sleeve 22. An inclined guide plate 23 is fixedly connected between the two fixing sleeves 22. Multiple threaded holes are formed along the length of each vertical section of the bracket 21. The fixing sleeves 22 are fixedly connected to the bracket 21 by bolts to the threaded holes. Under the traction of the traction rope 11, the end of the cable 10 moves towards the laying equipment on the laying path. As it moves, the end of the cable 10 contacts the guide plate 23 and is lifted to a certain height under the guidance of the guide plate 23, entering between the two left and right booster mechanisms 6 at that position.

[0031] See Figure 1 and Figure 4To ensure that the two left and right booster mechanisms 6 can release the traction rope 11 and clamp the incoming cable 10 in advance when the cable 10 approaches, the pitch detection mechanism 3 includes a rotating shaft 31 rotatably disposed between the two vertical sections of the bracket 21. Both ends of the rotating shaft 31 are connected to the corresponding vertical sections of the bracket 21 by torsion springs. An angle sensor 32 is provided on the rotating shaft 31, and I-shaped pressure rollers 33 are fixedly connected to the rotating shaft 31 through two connecting plates. The angle sensor 32 is a Hall effect angle sensor, which can detect the rotation angle and direction of the rotating shaft 31. Under normal conditions, the torsion spring drives the clamping wheel 33 to rotate clockwise. The clamping wheel 33 presses against the upper surface of the traction rope 11. When the end of the cable 10 approaches the clamping wheel 33, the diameter of the cable 10 is larger than that of the traction rope 11. Therefore, the end of the cable 10 will contact the clamping wheel 33 and force the clamping wheel 33 to rotate counterclockwise along the rotating shaft 31 by a certain angle. When the angle sensor 32 detects that the rotation direction of the rotating shaft 31 is counterclockwise and the rotation angle is greater than the preset threshold, it feeds the signal back to the external controller. Through analysis and processing by the controller, it is determined that the end of the cable 10 is close to the vicinity of the equipment and it is necessary to switch the clamping objects of the two left and right push mechanisms 6, that is, to switch the traction rope 11 to the cable 10.

[0032] It should be noted that the traction rope 11 pulls the cable 10 between two adjacent laying construction devices, and the amplitude of its shaking causing the pressure wheel 33 to rotate abnormally is negligible. There is no situation where the booster mechanism 6 malfunctions due to incorrect feedback information from the angle sensor 32.

[0033] See Figure 1 and Figure 3 To further reduce the resistance of cable 10 during the laying and traction process, the base support mechanism 5 includes a horizontal mounting base 51 welded to the upper side of the top plate 4 with its opening facing upwards. A support plate 52 is slidably connected to the port of the horizontal mounting base 51. The front side of the support plate 52 is set as a slope. Multiple support rollers 53 are rotatably arranged on the upper side of the support plate 52 along its length. Multiple first springs (not shown in the figure) are fixedly arranged inside the mounting base. The upper ends of the multiple first springs are fixedly connected to the lower side of the support plate 52. Cable 10 enters between the two left and right push mechanisms 6 on the upper side of the top plate 4 and is clamped and pushed. At the same time, cable 10 will squeeze the support plate 52, causing the support plate 52 to slide downwards and compress the first springs. The compression of the first springs provides support for cable 10, reducing the weight of cable 10. During the transportation process, cable 10 rolls in contact with the support rollers 53. The surface of the support rollers 53 is made of rubber to reduce the friction between them and cable 10. The first spring inside the horizontal mounting base 51 needs to be inspected regularly and replaced after a certain period.

[0034] See Figure 1 , Figure 4 and Figure 5 To avoid the problem of the boosting force temporarily disappearing during the switching of the two left and right boosting mechanisms 6 from clamping the traction rope 11 to clamping the cable 10, the boosting mechanism 6 includes a housing 61 connected to the drive mechanism 7 and with one side open. Inside the housing 61 are two sets of clamping toothed rollers 62, a drive roller set 63, and three sets of tensioning components 64. The two sets of clamping toothed rollers 62 are symmetrically distributed front and rear. The two sets of clamping toothed rollers 62, the drive roller set 63, and the three sets of tensioning components 64 are all connected by a toothed belt 65. Two electric push rods 8 are also fixedly installed inside the housing 61, and the electric push rods 8 are connected to their corresponding clamping toothed roller sets 62. The two opposing clamping toothed roller sets 62, together with their corresponding toothed belts 65, form a clamping boosting section 9. In the same laying construction equipment, the two left and right boosting mechanisms 6 together form two continuous clamping boosting sections 9. The clamping principle of the clamping booster section 9 is that the two corresponding clamping toothed roller groups 62 on the left and right can move closer or further apart under the control of their respective electric push rods 8. When the two clamping toothed roller groups 62 on the left and right move closer together, the corresponding areas of the left and right toothed belts 65 will also move closer together and clamp the booster object (traction rope 11 or cable 10) between them. At the same time, the toothed belt 65 is kept taut with the cooperation of the corresponding tensioning component 64 to ensure that the toothed belt 65 can be stably transmitted.

[0035] See Figure 4 and Figure 5 The clamping toothed roller assembly 62 includes a roller frame fixedly connected to a corresponding electric actuator 8. A series of evenly distributed push toothed rollers are rotatably mounted on the roller frame, meshing with the inner side of the toothed belt 65. The electric actuator 8 drives the roller frame to move and adjust the position of the toothed belt 65 in the corresponding area. The telescopic end of the electric actuator 8 is connected to the roller frame, and a pressure sensor (not shown in the figure) is installed at this connection point. The pressure sensor detects the pressure applied to the clamped object. The specific model of the pressure sensor can be selected according to the type of the traction cable 10. Furthermore, the working principle and circuit connection of the angle sensor 32 and the pressure sensor involved in this solution are common knowledge in this technical field, and therefore will not be elaborated upon further in this solution.

[0036] like Figure 5 , Figure 7 and Figure 8Initially, the traction rope 11 is positioned between two clamping and pushing sections 9, moving from front to back. Under the traction of an external traction machine, the traction rope 11 is further clamped and pushed by the two clamping and pushing sections 9, causing the cable 10 to move. When the end of the cable 10 pulled by the traction rope 11 approaches the nearest laying equipment, the left and right toothed belts 65 in the first clamping and pushing section 9 separate, awaiting the traction rope 11 to pull the cable 10 between the two toothed belts 65 for clamping. Simultaneously, the two toothed belts 65 in the second clamping and pushing section 9 continue to clamp and push the traction rope 11. When the toothed belts 65 in the first clamping and pushing section 9 re-close and clamp the cable 10, the second clamping and pushing section 9 repeats the operation of the first clamping and pushing section 9, completing the switch from clamping the traction rope 11 to clamping the cable 10.

[0037] See Figure 4 and Figure 5 The drive roller assembly 63 includes a driving toothed roller and a driven toothed roller, both rotatably disposed within the housing 61. The driving and driven toothed rollers are symmetrically distributed front and rear, and both mesh with the inner rack of the toothed belt 65. A drive motor is fixedly disposed on the upper side of the housing 61 at a position corresponding to the driving toothed roller, and the output shaft of the drive motor is fixedly connected to the upper end of the corresponding driving toothed roller. The drive motor, in conjunction with the driving toothed roller, drives the toothed belt 65 to move cyclically.

[0038] See Figure 5 and Figure 6Two sets of tensioning components 64 are symmetrically arranged inside the housing 61. One set of tensioning components 64 is arranged between the front and rear roller frames. The tensioning component 64 includes a vertical mounting base 641 fixedly arranged inside the housing 61. A groove is opened on the side of the vertical mounting base 641 near the toothed belt 65. Multiple second springs 642 are fixedly arranged in the groove. The same end of the multiple second springs 642 is fixedly connected to a slide plate 643. The slide plate 643 is slidably connected to the corresponding groove. A tensioning roller 644 is rotatably arranged on the side of the slide plate 643 near the toothed belt 65. The tensioning roller 644 is rollably connected to the outer side of the corresponding toothed belt 65. When the two left and right pressure roller assemblies 62 at the front are driven closer to each other by the corresponding electric actuators 8, the pressure on the two tension rollers 644 located in the middle and front increases through the toothed belt 65. This causes the tension rollers 644 to slide along the grooves on the corresponding vertical mounting base 641 via the corresponding slide plates 643, thereby compressing the corresponding second springs 642. When the two pressure roller assemblies 62 subsequently move away from each other under the drive of the corresponding electric actuators 8, the tension rollers 644 return to their original position under the action of the corresponding second springs 642, maintaining the tension of the toothed belt 65. The second springs 642 in the tensioning assembly 64 have been repeatedly tested by those skilled in the art and are able to ensure that the toothed belt 65 remains taut throughout the adjustment process. Furthermore, the tensioning assembly 64 requires regular maintenance and replacement at certain intervals.

[0039] See Figure 1 , Figure 3 and Figure 4 The drive mechanism 7 includes a bidirectional screw 71 rotatably disposed between the left and right side walls of the base 1. The left and right sections of the bidirectional screw 71 are respectively provided with threaded sections with opposite thread directions, and drive seats 72 are threadedly connected to both threaded sections. Two columns 73 are fixedly disposed on the upper side of the drive seat 72. The upper ends of the two columns 73 on the same drive seat 72 are fixedly connected to the lower side of the outer shell 61. Four strip-shaped through holes are opened on the top plate 4. The columns 73 are movably disposed in the corresponding strip-shaped through holes. Two guide rods symmetrically distributed front and back are fixedly disposed between the left and right inner side walls of the base 1. The guide rods are slidably connected to the drive seat 72. One end of the bidirectional screw 71 passes through the corresponding side wall of the base 1 and is fixedly connected to a rotating disk. A hexagonal slot is opened on the rotating disk. Initially, the workers first thread the traction rope 11 between the two left and right booster mechanisms 6 in the same paving construction equipment, and then manually drive the rotating disk to rotate with the help of tools, thereby controlling the rotation of the bidirectional screw 71, so that the two drive seats 72 move closer to each other, and adjust the distance between the two upper left and right booster mechanisms 6 to ensure that the outer clamping section of the toothed belt 65 can clamp the traction rope 11.

[0040] In addition, this solution also provides a method for laying power cables, which is completed by using the above-mentioned power cable laying equipment, including the following steps: S1, equipment fixing, installing and fixing all the above-mentioned laying equipment along the cable transport path.

[0041] S2. For the connection of the traction rope 11, pull the traction rope 11 out from the external traction machine and pass it through the two clamping booster sections 9 of each device for clamping, and then fix one end of the cable 10 to one end of the traction rope 11.

[0042] S3. Cable 10 enters the laying equipment for clamping and pushing. The traction rope 11 pulls the cable 10 along the laying path under the traction of the external traction machine. The end of the cable 10 approaches the laying equipment. The lifting guide mechanism 2 lifts the end of the cable 10 to a certain height to facilitate its entry into the two pushing mechanisms 6. Then, the clamping wheel 33 and the angle sensor 32 in the pitch detection mechanism 3 detect the position of the end of the cable 10. Then, the cable 10 enters the two clamping and pushing sections 9 of the laying equipment for clamping and pushing, and the cable 10 is pushed to move along the laying path.

[0043] S4. Cable 10 is continuously conveyed and finally the cable 10 is laid. The traction rope 11 drives the end of cable 10 to continuously pass through all the laying construction equipment on the laying path and finally the cable 10 is continuously pushed by all the laying construction equipment until the cable 10 moves to the designated position and the cable 10 is laid.

[0044] This solution incorporates two clamping and pushing sections 9. When the cable 10 enters the equipment, the first section automatically switches to clamp the cable 10, while the second section maintains clamping on the traction rope 11, ensuring uninterrupted propulsion during the switching process. This eliminates the problem of temporary loss of propulsion caused by the fully extended tracks in traditional equipment, effectively preventing risks such as sudden speed drops in the cable 10, overload breakage of the traction rope 11, or cable jamming, thus improving the continuity and safety of the laying operation. Based on the aforementioned improvement in the propulsion of a single laying equipment, the number of laying equipment required can be reduced during long-distance transport, lowering costs.

[0045] Furthermore, the variable-pitch detection mechanism 3 automatically identifies the travel position of the cable 10 end. When each construction laying device switches between the traction rope 11 and the clamping object of the cable 10, the booster mechanism 6 is automatically triggered to adjust the clamping object. The staff only needs to follow the movement of the cable 10 end and observe whether there are any abnormalities during the docking and switching process between the cable 10 end and the laying construction equipment. If there are any abnormalities, active intervention is taken; otherwise, no active intervention is required. Under normal circumstances, no manual operation of each piece of equipment is required. This significantly reduces the number of operators required in long-distance laying, saves labor costs, and improves response speed and operational accuracy.

[0046] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0047] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection 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.

[0049] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. Power cable laying equipment, characterized in that: The system includes a base, a lifting guide mechanism on the upper side of the front frame of the base, a pitch detection mechanism on the lifting guide mechanism, a lifting guide mechanism to lift the cable to a predetermined height and the pitch detection mechanism to detect the cable's travel position, a top plate fixedly mounted on the base, a base support mechanism in the middle of the top plate, and two symmetrically distributed booster mechanisms on the top plate, with a drive mechanism shared between the base and the two booster mechanisms. The booster mechanism includes a housing connected to the drive mechanism and having an open structure on one side. Inside the housing are two sets of pressing toothed rollers, a drive roller set, and three sets of tensioning components. The two sets of pressing toothed rollers are symmetrically distributed front and rear. The two sets of pressing toothed rollers, the drive roller set, and the three sets of tensioning components are connected by a toothed belt drive. Two electric push rods are also fixedly installed inside the housing and are connected to the corresponding pressing toothed roller sets. Two opposing clamping toothed rollers, together with their corresponding toothed belts, form a clamping booster section. The two clamping booster sections switch from clamping the traction rope to clamping the cable in sequence. During the switching process, the second clamping booster section is in a continuous pressure-maintaining boosting state. After the first clamping booster section completes the switching, the second clamping booster section performs the same switching action again.

2. The power cable laying equipment according to claim 1, characterized in that, The lifting and guiding mechanism includes a U-shaped bracket fixedly mounted on the base. Each of the two vertical sections of the bracket is equipped with a height-adjustable fixing sleeve, and an inclined guide plate is fixedly connected between the two fixing sleeves.

3. The power cable laying equipment according to claim 2, characterized in that, The variable pitch detection mechanism includes a rotating shaft rotatably disposed between two vertical sections of the support. Both ends of the rotating shaft are connected to the corresponding vertical sections of the support with torsion springs. An angle sensor is installed on the rotating shaft, and I-shaped pressure rollers are fixedly connected to the rotating shaft through two connecting plates.

4. The power cable laying equipment according to claim 1, characterized in that, The base support mechanism includes a horizontal mounting base fixedly mounted on the upper side of the top plate with its opening facing upward. A support plate is slidably connected to the port of the horizontal mounting base. Multiple support wheels are rotatably mounted on the upper side of the support plate along its length. Multiple first springs are fixedly mounted inside the mounting base, and the upper ends of the multiple first springs are fixedly connected to the lower side of the support plate.

5. The power cable laying equipment according to claim 1, characterized in that, The pressing toothed roller assembly includes a roller frame fixedly connected to a corresponding electric push rod, and a push toothed roller evenly distributed front and rear is rotatably arranged on the roller frame, the push toothed roller meshing with the inner side of the toothed belt.

6. The power cable laying equipment according to claim 1, characterized in that, The drive roller assembly includes an active toothed roller and a driven toothed roller, both rotatably disposed within the housing. The active and driven toothed rollers are symmetrically distributed front and rear, and both the active and driven toothed rollers mesh with the inner toothed rack of the toothed belt. A drive motor is fixedly disposed on the upper side of the housing at a position corresponding to the active toothed roller, and the output shaft of the drive motor is fixedly connected to the upper end of the corresponding active toothed roller.

7. The power cable laying equipment according to claim 5, characterized in that, Two sets of tensioning components are symmetrically arranged inside the housing. One set of tensioning components is located between the front and rear roller frames. The tensioning component includes a vertical mounting base fixedly installed inside the housing. A groove is opened on the side of the vertical mounting base near the toothed belt. Multiple second springs are fixedly installed in the groove. The same end of the multiple second springs is fixedly connected to a sliding plate. The sliding plate is slidably connected to the corresponding groove. A tensioning roller is rotatably installed on the side of the sliding plate near the toothed belt. The tensioning roller is rollably connected to the outer side of the corresponding toothed belt.

8. The power cable laying equipment according to claim 1, characterized in that, The driving mechanism includes a bidirectional screw rotatably disposed between the left and right side walls of the base. The left and right sections of the bidirectional screw are respectively provided with threaded sections with opposite thread directions, and each threaded section is threadedly connected to a driving seat. Two columns are fixedly disposed on the upper side of the driving seat. The upper ends of the two columns on the same driving seat are fixedly connected to the lower side of the outer shell. Four strip-shaped through holes are opened on the top plate, and the columns are movably disposed in the corresponding strip-shaped through holes. Two guide rods symmetrically distributed front and back are fixedly disposed between the left and right inner side walls of the base. The guide rods are slidably connected to the driving seat. One end of the bidirectional screw passes through the corresponding side wall of the base and is fixedly connected to a rotating disk. A hexagonal slot is opened on the rotating disk.

9. A method for laying power cables, characterized in that, The process, completed using the power cable laying equipment as described in claim 1, includes the following steps: S1. Equipment fixing: Install and fix all the above-mentioned laying construction equipment along the cable transmission path; S2. Connecting the traction rope: Pull the traction rope out from the external traction machine and pass it through the two booster mechanisms of each device for clamping. Then, fix one end of the cable to one end of the traction rope. S3. The cable enters the laying equipment for clamping and pushing. The traction rope pulls the cable along the laying path under the traction of the external traction machine. The cable end approaches the laying equipment. The position of the cable end is detected by the lifting guide mechanism in conjunction with the pitch detection mechanism. Then the cable enters the two clamping and pushing sections of the laying equipment for clamping and pushing. The cable is then pushed along the laying path. S4. The cable is continuously transported and finally laid. The traction rope drives the cable end through all the laying construction equipment on the laying path and finally pushes the cable through all the laying construction equipment until the cable moves to the designated position and the cable laying is completed.

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