Automatic cable laying system and method based on movable hydraulic pay-off rack

Abstract

The invention discloses an automatic cable laying system and method based on a movable hydraulic cable pay-off rack, and the system comprises the movable hydraulic cable pay-off rack, an intelligent cable conveyor, a plurality of cable conveying auxiliary devices, a fixed support, a bridge, a motorized winching machine and a rope winder which are sequentially arranged from left to right. A cable reel is fixed to the movable hydraulic cable pay-off rack, the cable outlet end of the cable reel faces a cable inlet of the intelligent cable conveyor, the cable conveying auxiliary devices are distributed at intervals, and the fixing supports are arranged at the two ends of the bridge. The rope winder is arranged on one side of the motorized winching machine; one end of the steel wire rope is wound by the rope winder, the other end of the steel wire rope is connected with the cable through the motorized winching machine, and the motorized winching machine of the rope winder is connected with the traction end of the cable through the steel wire rope. According to the automatic cable laying system provided by the invention, efficient, safe and low-damage laying of the cable is realized, and the operation efficiency and safety can be improved.

Description

Technical Field

[0001] This invention relates to the field of cable laying construction technology, specifically to an automatic cable laying construction method based on a movable hydraulic cable laying frame and a collaborative traction system. Background Technology

[0002] With the acceleration of urbanization in my country, the number of high-rise buildings and large complexes has increased dramatically, and their power supply systems are facing many severe challenges, such as the difficulty of laying cables over ultra-long vertical transmission distances, the high requirements for cable protection under high fire safety levels, the difficulty of laying large cross-section cables due to their weight, and the complex cross-coordination of multiple professional pipelines in limited spaces. All of these have placed higher demands on the safety, reliability, efficiency and intelligence level of cable laying technology.

[0003] In cable laying operations, traditional methods mainly rely on manual operation or simple tools (such as manual cable conveyors and fixed cable laying frames). Currently, existing cable laying methods have the following shortcomings:

[0004] 1) It mainly relies on manual operation, supplemented only by simple tools such as manual cable conveyors and fixed cable laying frames. However, when dealing with the above-mentioned complex scenarios, especially when there are requirements for long-distance, large-section, space-constrained, or high-altitude laying, the existing technical solutions have systemic shortcomings, specifically as follows:

[0005] 2) Existing high-altitude laying technology requires manual labor to complete tasks such as cable handling, pulling, and fixing. When dealing with large-section, ultra-long, and ultra-heavy cables (such as main lines of high-rise buildings), workers' physical strength is greatly consumed, the construction progress is slow, and at the same time, labor costs and construction project costs are increased.

[0006] 3) During manual laying, improper operation, such as uneven traction control, excessive bending, or friction and dragging with the ground or sharp objects, can easily lead to damage to the outer sheath or the inner insulation layer of the cable. This damage will not only shorten the service life of the cable, but may also cause serious safety hazards such as leakage and short circuit, threatening the stability of the power supply system and the safety of personnel.

[0007] 4) In narrow passages, wells, mezzanines and other space-constrained areas, workers have very limited operating space, making it difficult to carry out effective handling, traction, turning and positioning operations. Usually, only a small number or even a single person can work, and it is impossible to carry out multi-person collaborative actions. Workers are forced to maintain poor postures such as bending over and curling up for a long time, which can easily cause musculoskeletal strain and rapid fatigue, which not only affects work efficiency, but also exacerbates the risk of work safety.

[0008] 5) Traditional fixed or simple mobile cable laying racks are usually bulky and difficult to move and position. Before laying, the heavy cable reels need to be moved to the laying rack position or dragged to the platform. This not only increases the workload of secondary cable handling, but also takes a lot of time and effort. Especially when loading large and heavy cable reels, the reels are prone to tilting or even slipping and injuring people due to instability of the center of gravity, which poses a major safety risk. Summary of the Invention

[0009] In order to solve the problems mentioned in the background art, the purpose of this invention is to provide an integrated and intelligent cable laying system, an automatic cable laying system and method that enables efficient, safe and low-damage cable laying, and can improve work efficiency and safety.

[0010] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0011] An automated cable laying system based on a movable hydraulic cable laying frame, comprising, from left to right, a movable hydraulic cable laying frame, an intelligent cable conveyor, several cable conveying auxiliary devices, a fixed support, a cable tray, a motorized winch, and a rope reel, wherein:

[0012] The movable hydraulic cable laying frame is fixed with a cable reel, and the cable reel's outlet end faces the inlet of the intelligent cable conveyor. The movable hydraulic cable laying frame is used to support the cable reel and realize hydraulic lifting and adjustment.

[0013] Several cable conveying auxiliary devices are distributed at intervals to assist cable movement and reduce resistance during cable laying;

[0014] The intelligent cable conveyor is used to control the speed and tension of the cable conveying process, and several cable conveying auxiliary devices are set on one side of the outlet of the intelligent cable conveyor.

[0015] The fixing brackets are installed at both ends of the cable tray to fix the cable tray;

[0016] The rope winder is located on one side of the motorized winch and is used to provide traction.

[0017] A steel wire rope is connected to the rope reel. One end of the steel wire rope is wound up by the rope reel, and the other end of the steel wire rope is connected to the cable via a motorized winch. The motorized winch is connected to the cable traction end via the steel wire rope to provide adjustable traction force.

[0018] Furthermore, each cable conveying auxiliary device includes a support frame and a plurality of rotatable support roller units, which are fixed to the support frame at intervals.

[0019] Furthermore, each support roller unit includes a rotating sleeve, a first bearing, and a rotating shaft. The inner wall of the rotating sleeve is welded and fixed to the outer wall of the first bearing, and the inner wall of the first bearing is welded and fixed to the rotating shaft. The rotating sleeve is sleeved on the outer circumference of the rotating shaft to form a support roller unit that enables the rotating sleeve to rotate around the rotating shaft.

[0020] Furthermore, the support frame includes a supporting fixed angle steel, a limiting connecting nut, a supporting channel steel, and a steel plate. The supporting fixed angle steel and the supporting channel steel are symmetrically distributed. The steel plate is fixed below the supporting fixed angle steel and the supporting channel steel. The two ends of the rotating shaft are distributed and fixed to the supporting fixed angle steel and the supporting channel steel by limiting connecting nuts.

[0021] Furthermore, the movable hydraulic cable laying frame includes a cable frame, a hydraulic structure, a fixing pin, and a moving mechanism. The cable reel is rotatably mounted on the cable frame to accommodate the cable. The hydraulic structure is fixedly mounted on the cable frame and connected to the cable reel, and is used to drive and control the lifting or rotation of the cable reel through the hydraulic structure. The fixing pin is detachably mounted on the cable frame, and the moving mechanism is fixed to the lower end of the cable frame.

[0022] Furthermore, the automatic cable laying system includes a cable limiting auxiliary device, which is disposed between the fixed support and the cable tray.

[0023] Furthermore, the cable limiting auxiliary device includes a supporting angle steel and several limiting rotating roller units. The several limiting rotating roller units are fixed to the supporting angle steel at intervals. Each limiting rotating roller unit includes an outer sleeve, a rotating shaft, and a fixing nut. The outer sleeve is sleeved on the outside of the rotating shaft, and both ends of the rotating shaft are installed on the supporting angle steel by fixing nuts.

[0024] On the other hand, the present invention also provides an automatic cable laying method, the construction method comprising the following steps:

[0025] Step 1) Construction preparation: Review the construction drawings, clarify the cable laying path and requirements, check the working condition of the movable hydraulic cable laying frame, motorized winch, intelligent cable conveyor and wire rope, and clean the laying path;

[0026] Step 2) Fabrication of cable auxiliary devices: Fabricate cable conveying auxiliary devices and cable limiting auxiliary devices. The cable conveying auxiliary devices are used to support and guide the cable in the laying path, and the cable limiting auxiliary devices are used to limit the cable laying path.

[0027] Step 3) Deployment of traction system: Deploy motorized winch, intelligent cable conveyor, multiple cable conveying auxiliary devices, and steel wire rope along the cable laying path. The motorized winch is set at the end of the laying path, the intelligent cable conveyor is set near the cable reel, and the steel wire rope connects the motorized winch to the cable traction end.

[0028] Step 4) Positioning and loading the cable reel: Position the movable hydraulic cable reel next to the cable reel, adjust and center it, and then use the shaft to lift the cable reel to the ground height to ensure that the cable reel can rotate smoothly.

[0029] Step 5) Automatic cable laying: According to the construction drawings, on the horizontal high-altitude cable tray path, arrange the movable hydraulic cable laying frame, electric conveyor, multiple cable conveying auxiliary devices fixed inside the cable tray, motorized winch, and steel wire rope in sequence. Start the intelligent cable conveyor and the motorized winch. By coordinating the traction speed of the motorized winch and the intelligent cable conveyor, the cable is continuously laid along the laying path through the multiple cable conveying auxiliary devices.

[0030] Further, in step 2), the fabrication of the cable conveying auxiliary device includes: assembling a support frame and fabricating several support roller units; fixing the fabricated support roller units to the support frame at intervals; each support roller unit consists of a rotating sleeve, a first bearing, and a rotating shaft; inserting the rotating shaft and the first bearing sequentially into the rotating sleeve; fixing the outer wall of the first bearing to the inner wall of the rotating sleeve by welding; welding the inner wall of the first bearing to the rotating shaft to form a support roller unit that allows the rotating sleeve to rotate around the rotating shaft; assembling the supporting fixing angle steel, supporting channel steel, and steel plate into a support frame; fixing both ends of the rotating shaft of each support roller unit to the supporting fixing angle steel and supporting channel steel respectively by limiting connecting nuts.

[0031] Furthermore, the fabrication of the cable limiting auxiliary device in step 2) includes: assembling the supporting angle steel and fabricating several limiting rotating roller units, with the several limiting rotating roller units fixed to the supporting angle steel at intervals.

[0032] The beneficial effects of this invention are as follows:

[0033] (1) The automatic cable laying system of the present invention includes, from left to right, a movable hydraulic cable laying frame, an intelligent cable conveyor, several cable conveying auxiliary devices, a fixed bracket, a cable tray, a motorized winch, and a rope reel, wherein: a cable reel is fixed on the movable hydraulic cable laying frame, the outlet end of the cable reel faces the inlet of the intelligent cable conveyor; several cable conveying auxiliary devices are distributed at intervals to assist cable movement and reduce resistance during cable laying; the fixed bracket is set at both ends of the cable tray to fix the cable tray; the rope reel is set on one side of the motorized winch; a steel wire rope is connected to the rope reel, one end of the steel wire rope is wound by the rope reel, and the other end of the steel wire rope is connected to the cable via the motorized winch; the motorized winch of the rope reel is connected to the cable traction end via the steel wire rope. The automatic cable laying system provided by the present invention achieves efficient, safe, and low-damage cable laying, and can improve work efficiency and safety.

[0034] 2) The automatic cable laying method of the present invention includes construction preparation, fabrication of cable conveying auxiliary devices, deployment of a traction system, placement and installation of the cable reel, and automatic cable laying. The construction method of the present invention clarifies parameters and equipment operating conditions through construction preparation, fabricates a cable conveying auxiliary device capable of friction conversion, deploys a coordinated traction system consisting of a motorized winch and an electric cable conveying mechanism, and utilizes a movable hydraulic cable laying frame to complete the placement of the cable reel. Finally, it achieves automatic cable laying in high-altitude horizontal, vertical, and short-path scenarios. The construction method of the present invention can reduce manpower requirements, lower cable damage rates, and improve laying efficiency, and is suitable for complex cable laying scenarios such as high-rise buildings and large complexes. Attached Figure Description

[0035] Figure 1 This is a system diagram of the automatic cable laying system of the present invention for laying cables in the vertical direction;

[0036] Figure 2 This is a system diagram of the automatic cable laying system of the present invention, showing the laying of cables on a cable tray.

[0037] Figure 3 This is a schematic diagram of the traction system consisting of the motorized winch and the intelligent cable conveyor of the present invention;

[0038] Figure 4 This is a front view of the cable conveying auxiliary device of the present invention;

[0039] Figure 5 This is a side view of the cable conveying auxiliary device of the present invention;

[0040] Figure 6 This is a top view of the cable conveying auxiliary device of the present invention;

[0041] Figure 7 This is a schematic diagram of the structure of the support roller unit of the present invention;

[0042] Figure 8 For the present invention Figure 7 Sectional view of section 1-1;

[0043] Figure 9 This is a front view of the cable limiting auxiliary device of the present invention;

[0044] Figure 10 This is a side view of the cable limiting auxiliary device of the present invention;

[0045] Figure 11 This is a schematic diagram showing the relationship between the movable hydraulic cable laying frame and the cable reel of the present invention;

[0046] Figure 12 This is a side view of the movable hydraulic cable laying frame of the present invention;

[0047] Figure 13 This is a schematic diagram of the intelligent cable conveyor of the present invention.

[0048] In the diagram, the components include: a movable hydraulic cable laying frame 1, a cable reel 11, a cable frame 12, a hydraulic structure 13, a moving mechanism 14, a fixing pin 15, an intelligent cable conveyor 2, a base 21, a lifting structure 22, a lifting adjustment mechanism 221, an adjustment handle 2211, an adjustment screw 2212, a lifting nut sleeve 2213, a lifting plate 222, a lifting screw 223, a buffer spring 224, a crawler conveyor mechanism 23, a roller frame 24, a cable roller 241, a guide roller bracket 25, a cable guide roller 251, a PLC controller 26, a switch 261, a control button 262, and a drive. 27. Motion mechanism; 28. Partition plate; 3. Cable conveying auxiliary device; 31. Support frame; 311. Support fixing angle steel; 312. Limiting connecting nut; 313. Support channel steel; 314. Steel plate; 32. Support roller unit; 321. Rotating sleeve; 322. First bearing; 323. Rotating shaft; 324. Limiting connecting nut; 33. Limiting conveying roller; 4. Fixed bracket; 5. Cable tray; 6. Motorized winch; 7. Rope winder; 71. Wire rope; 8. Cable limiting auxiliary device; 81. Supporting angle steel; 82. Limiting rotating roller unit; 821. Outer sleeve; 822. Rotating shaft; 823. Fixing nut; 9. Cable; 10. Wall. Detailed Implementation

[0049] 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.

[0050] like Figures 1-3As shown, in one aspect, the present invention provides an automatic cable laying system based on a movable hydraulic cable laying frame. This automatic cable laying system includes, from left to right, a movable hydraulic cable laying frame 1, an intelligent cable conveyor 2, several cable conveying auxiliary devices 3, a fixed support 4, a cable tray 5, a motorized winch 6, and a rope winder 7. Specifically, a cable reel 11 is fixed on the movable hydraulic cable laying frame 1, with the cable reel 11's outlet end facing the inlet of the intelligent cable conveyor 2. The movable hydraulic cable laying frame 1 supports the cable reel 11 and enables hydraulic lifting and adjustment. Several cable conveying auxiliary devices 3 are spaced apart and used for... During the laying of cable 9, the auxiliary cable 9 moves and reduces resistance; the intelligent cable conveyor 2 is used to control the speed and tension of the cable 9 during the conveying process, and several cable conveying auxiliary devices 3 are set on one side of the outlet of the intelligent cable conveyor 2; the fixed bracket 4 is set at both ends of the cable tray 5 to fix the cable tray 5; the rope reel 7 is set on one side of the motorized winch 6 to provide traction force; a steel wire rope 71 is connected to the rope reel 7, one end of the steel wire rope 71 is wound by the rope reel 7, and the other end of the steel wire rope 71 is connected to the cable 9 through the motorized winch 6. The motorized winch 6 is connected to the traction end of the cable 9 through the steel wire rope 71 to provide adjustable traction force.

[0051] In this invention, the cable reel 11 is horizontally mounted on a movable hydraulic cable laying frame 1, with the outlet end of the cable reel 11 facing the inlet of the intelligent cable conveyor 2, forming an initial laying channel of "cable reel 11, movable hydraulic cable laying frame 1, and intelligent cable conveyor 2". The outlet end of the intelligent cable conveyor 2 is aligned with the inlet of the cable conveying auxiliary device 3. 1 to 5 cable conveying auxiliary devices 3 are arranged sequentially and at intervals along the cable 9 laying path (e.g., at bends, midpoints of long straight sections, and other key nodes) to form a continuous cable 9 guiding channel. The cable tray 5... The cable tray 5 is vertically or horizontally fixed to the wall 10 at the laying site by the fixed bracket 4. The inlet end of the cable tray 5 is aligned with the outlet end of the last cable conveying auxiliary device 3 to ensure that the cable 9 can smoothly enter the cable tray 5. The other end of the wire rope 71 is connected to the drum of the motorized winch 6. A rope winder 7 is set on one side of the motorized winch 6. The drum of the rope winder 7 is parallel to the drum of the motorized winch 6 and is used to store the redundant wire rope 71, forming a traction linkage relationship of "motorized winch 6, wire rope 71, cable conveying auxiliary device 3, intelligent cable conveyor 2, and cable".

[0052] like Figures 4-8As shown, each cable conveying auxiliary device 3 includes a support frame 31 and a plurality of rotatable support roller units 32, which are fixed to the support frame 31 at intervals. The cable conveying auxiliary device 3 of the present invention converts the sliding friction between the cable 9 and the support surface into rolling friction through the rotatable support roller units 32. This effectively reduces wear on the outer sheath of the cable 9, avoids insulation layer scratches caused by traditional dragging, extends the service life of the cable 9, and solves the problem of high cable 9 damage risk in the prior art. The cable conveying auxiliary device 3 of the present invention can quickly adapt to cable 9 laying in different building structures (vertical cable trays 5, corners, narrow spaces), solving the problem of difficult manual operation in complex spaces.

[0053] Each support roller unit 32 includes a rotating sleeve 321, a first bearing 322, and a rotating shaft 323. The inner wall of the rotating sleeve 321 is welded and fixed to the outer wall of the first bearing 322, and the inner wall of the first bearing 322 is welded and fixed to the rotating shaft 323. The rotating sleeve 321 is sleeved on the outer circumference of the rotating shaft 323, thus forming a support roller unit 32 that allows the rotating sleeve 321 to rotate around the rotating shaft 323. This invention uses a rotatable support roller unit 32 to lay the cable 9, greatly reducing friction. It has a simple structure, low manufacturing and maintenance costs, is easy to use, and can be flexibly arranged on the cable 9's transport path. It effectively protects the cable 9's outer sheath and extends the cable 9's service life.

[0054] In this embodiment of the invention, the rotating shaft 323 is a screw, and a high-strength screw of M16-M20 specification can be selected as the rotating shaft 323. The rotating shaft 323 is fixedly connected to the inner ring of the bearing. The rotating sleeve 321 is a roller sleeved on the rotating shaft 323. The rotating sleeve 321 can be a seamless steel pipe with a diameter of 50mm-80mm. The first bearing 322 is a deep groove ball bearing. Several support roller units 32 are arranged at intervals along the conveying direction of the cable 9 on the support frame 31.

[0055] In a specific implementation of this invention, the support frame 31 includes a supporting and fixing angle steel 311, limiting connecting nuts 324, a supporting channel steel 313, and steel plates 314. The supporting and fixing angle steel 311 and the supporting channel steel 313 are symmetrically distributed. The steel plates 314 are all fixed below the supporting and fixing angle steel 311 and the supporting channel steel 313. The limiting connecting nuts 324 at both ends of the rotating shaft 323 are distributed and fixed to the supporting and fixing angle steel 311 and the supporting channel steel 313. The supporting and fixing angle steel 311 of this invention is selected as ∠50×50×5 angle steel. The limiting connecting nuts 324 are threaded to both ends of the rotating shaft 323. The two ends of the rotating shaft 323 are fixed to the support frame 31 by the limiting connecting nuts 324. The limiting connecting nuts 324 are provided to adjust and fix the position of the rotating shaft 323.

[0056] Each cable conveying auxiliary device 3 also includes at least two sets of several limiting conveying rollers 33. The two sets of several limiting conveying rollers 33 are fixed above the support channel steel 313 and symmetrically distributed at both ends of the support roller unit 32. The limiting conveying rollers 33 mainly serve to restrict the cable 9 on the several support roller units 32 of the cable conveying auxiliary device during the horizontal laying of the cable 9, prevent the cable 9 from tilting up during the laying process, and restrict the cable 9 to be laid inside the cable tray 5.

[0057] like Figures 9-10 As shown, the automatic cable laying system of the present invention includes a cable limiting auxiliary device 8, which is disposed between the fixed bracket 4 and the cable tray 5. The cable limiting auxiliary device 8 includes a supporting angle steel 81 and several limiting rotating roller units 82. The several limiting rotating roller units 82 are fixed to the supporting angle steel 81 at intervals. Each limiting rotating roller unit 82 includes an outer sleeve 821, a rotating shaft 822, and a fixing nut 823. The outer sleeve 821 is sleeved on the outside of the rotating shaft 822, and both ends of the rotating shaft 822 are installed on the supporting angle steel 81 by the fixing nuts 823. In a specific implementation of the present invention, the supporting angle steel 81 is configured as an L-shaped structure, and the rotating shaft 822 is a screw. The rotating shaft 822 is used to connect the outer sleeve 821 and the supporting angle steel 81. The fixing nut 823 cooperates with the rotating shaft 822 to fix the rotating shaft 822 and the outer sleeve 821 together with the supporting angle steel 81. The outer sleeve 821 is used to form a conveying channel or support structure for the cable 9. In a specific implementation, the supporting angle steel 81 is provided with connecting holes, wherein the two ends of the rotating shaft 822 pass through the corresponding connecting holes on the supporting angle steel 81 and are fastened by the fixing nut 823, thereby forming a rotatable cable limiting auxiliary device 8.

[0058] like Figures 11-12As shown, the movable hydraulic cable laying frame 1 of the present invention includes a cable frame 12, a hydraulic structure 13, a fixing pin 15, and a moving mechanism 14. A cable reel 11 is rotatably mounted on the cable frame 12 to accommodate a cable 9. The hydraulic structure 13 is fixedly mounted on the cable frame 12 and connected to the cable reel 11, and is used to drive and control the lifting or rotation of the cable reel 11. The fixing pin 15 is detachably mounted on the cable frame 12, and the moving mechanism 14 is fixed to the lower end of the cable frame 12. In this embodiment, the cable frame 12 is composed of several interconnected support pipes. The cable frame 12 has a base portion and a support portion. The moving mechanism 14 is fixed to the base portion to move the movable hydraulic cable laying frame 1. The several support pipes are connected by welding or bolts to form the cable frame 12, creating an integral support structure. The moving mechanism 14 consists of several moving wheels, which are fixed to the lower end of the base portion of the cable frame 12 via axles. The fixing pin 15 is detachably inserted into a pin hole on the cable frame 12. The hydraulic structure 13 includes a hydraulic lifting cylinder and a hydraulic pump. One end of the hydraulic lifting cylinder is hinged to the cable frame 12, and the other end is connected to the cable reel 11 or a rotating shaft. The hydraulic structure 13 allows for the safe and convenient lifting and supporting of the heavy cable reel 11 at the cable laying position, achieving the lifting and lowering of the cable reel 11 and completely avoiding safety risks during manual handling and loading. The movable hydraulic cable laying rack smoothly lifts the cable reel 11 through the hydraulic structure 13, eliminating the risk of tilting and slipping of the reel 11 due to instability during manual handling and loading of the cable reel 11 using traditional cable laying racks, thus preventing injury.

[0059] like Figure 13As shown, the intelligent cable conveyor 2 of the present invention includes a base 21 and a lifting structure 22, a crawler conveying mechanism 23, a roller frame 24, two sets of guide roller supports 25, and a PLC controller 26 fixed on the base 21. The roller frame 24 is disposed between the lifting structure 22 and the crawler conveying mechanism 23. The lower end of the lifting structure 22 is connected to the roller frame 24 to drive the roller frame 24 to move up and down. The two sets of guide roller supports 25 are respectively fixed on both sides of the crawler conveying mechanism 23. Each set of guide roller supports 25 has a rotatable cable guide roller 251 fixed on it. The cable guide roller 251 on the set of guide roller supports 25 located on the left side of the crawler conveying mechanism 23 is the cable inlet, and the cable guide roller 251 on the set of guide roller supports 25 located on the right side of the crawler conveying mechanism 23 is the cable outlet. The PLC controller 26 is disposed on one side of the crawler conveying mechanism 23. A drive mechanism 27 is connected to one side of the crawler conveying mechanism 23. Located below and electrically connected to the PLC controller 26; wherein, the lifting structure 22 includes a lifting adjustment mechanism 221, a lifting plate 222, and a lifting screw 223. The lifting plate 222 is fixed between the lifting adjustment mechanism 221 and the lifting screw 223. The top end of the lifting screw 223 is fixed to the lifting plate 222, and the bottom end of the lifting screw 223 is fixed to the roller frame 24. Several parallel rotatable cable rollers 241 are fixed on the roller frame 24. A buffer spring 224 is fitted on the lifting screw 223. The upper end of the buffer spring 224 is pressed against the bottom surface of the lifting plate 222, and the lower end of the buffer spring 224 is pressed against the roller frame 24. The lifting adjustment mechanism 221 includes an adjustment handle 2211, an adjustment screw 2212, and a lifting nut sleeve 2213. The adjustment handle 2211 is connected to the adjustment screw 2212, and the lifting nut sleeve 2213 is located at the lower end of the adjustment screw 2212 and is threadedly connected to the adjustment screw 2212.

[0060] When the intelligent cable conveyor 2 of the present invention is working, the adjusting handle 2211 on the adjusting screw 2212 is rotated to adjust the specifications of the cable 9 to be conveyed. By rotating the adjusting handle 2211, the lifting plate 222 can be raised and lowered conveniently and quickly to press and position the cable 9 to be conveyed. It can realize the reliable conveying of cables 9 of different specifications. Each link of the track of the crawler conveyor mechanism 23 is fixed with a pressing wheel. The surface of the pressing wheel is constructed with an arc groove. The drive mechanism 27 adopts a DC motor. A partition 28 is set on the base 21 corresponding to the space between the drive mechanism 27 and the crawler conveyor mechanism 23.

[0061] When the intelligent cable conveyor 2 of this invention is working, the adjustment handle 2211 is rotated according to the specifications of the cable 9 to be conveyed. When the adjustment handle 2211 is rotated, the lifting plate 222 is raised and lowered through the adjustment screw 2212. When the lifting plate 222 is raised and lowered, the upper roller frame 24 is elastically buffered and adjusted through the buffer spring 224 to ensure the flexibility of the cable 9 during the conveying process. After the lifting plate 222 is adjusted to the correct position, the cable 9 is clamped and positioned. Press the switch 261 button on the PLC controller 26 to start the intelligent cable conveyor 2. According to the conveying needs, the control button 262 next to the PLC controller 26 is adjusted to realize the forward or reverse rotation of the crawler conveyor mechanism 23 and adjust the conveying speed of the cable 9, thus realizing the intelligent cable conveyor 2 conveying the cable 9.

[0062] On the other hand, the present invention also provides an automatic cable laying method, which includes the following steps:

[0063] Step 1) Construction preparation: Review the construction drawings, clarify the laying path and requirements of cable 9, check the working condition of the movable hydraulic cable laying frame 1, motorized winch 6, intelligent cable conveyor 2 and steel wire rope 71, and clean the laying path.

[0064] Step 2) Fabrication of cable auxiliary devices: Fabricate cable conveying auxiliary device 3 and cable limiting auxiliary device 8. Cable conveying auxiliary device 3 is used to support and guide cable 9 in the laying path. Cable limiting auxiliary device is used to limit the cable laying path. Cable limiting auxiliary device can restrict the cable to be laid in the cable tray. It mainly has a limiting function and a turning assistance function in the horizontal direction when laying vertical cables.

[0065] Step 3) Deployment of traction system: Deploy motorized winch 6, intelligent cable conveyor 2, multiple cable conveying auxiliary devices 3, and steel wire rope 71 along the cable 9 laying path. Among them, motorized winch 6 is set at the end of the laying path, intelligent cable conveyor 2 is set near cable reel 11, and steel wire rope 71 connects motorized winch 6 and traction end of cable 9.

[0066] Step 4) Positioning and Installing the Cable Reel: Position the movable hydraulic cable payer 1 next to the cable reel 11, adjust and align it, then use the rotating shaft to lift the cable reel 11 to the ground height, ensuring that the cable reel 11 can rotate smoothly; the specific operations for positioning and installing the cable reel include:

[0067] Step 41) Move the cable reel: Push the wheeled chassis of the movable hydraulic cable reel 1 to move it next to the cable reel 11, ensuring that the distance between the cable reel and the cable reel 11 is appropriate (preferably 50cm-80cm in this invention).

[0068] Step 42) Precise alignment: Adjust the horizontal position and height of the movable hydraulic cable laying frame 1 so that the central axis of the support arms on both sides of the movable hydraulic cable laying frame 1 is precisely aligned with the central hole of the cable reel 11;

[0069] Step 43) Insert the pivot: Based on the size of the center hole of the cable reel 11, select a seamless steel pipe with a length greater than the distance between the two movable hydraulic cable laying frame 1 support arms as a temporary pivot. Pass the temporary pivot through the center hole of the cable reel 11, and ensure that the length of both ends of the temporary pivot extending out of the cable reel 11 is ≥10cm to ensure stable support of the cable reel 11.

[0070] Step 44) Hydraulic lifting: Operate the hydraulic structure 13 of the movable hydraulic cable laying frame, slowly start the hydraulic lifting cylinder, and smoothly lift the cable reel 11 to a height of > 10cm (preferably 15cm-20cm) off the ground. After stopping the lifting, rotate the cable reel 11 one revolution to confirm that it can rotate smoothly around the steel pipe without any jamming.

[0071] Step 5) Automatic cable 9 laying: According to the construction drawings, on the path of the horizontal high-altitude cable tray 5, arrange the movable hydraulic cable laying frame 1, electric conveyor, multiple cable conveying auxiliary devices 3 fixed inside the cable tray 5, motorized winch 6, and steel wire rope 71 in sequence. Start the intelligent cable conveyor 2 and motorized winch 6. By operating the traction speed of the motorized winch 6 and intelligent cable conveyor 2, the cable 9 is continuously laid along the laying path through the multiple cable conveying auxiliary devices 3. Adjust the traction force and speed according to the laying scenario, which includes high-altitude horizontal laying, vertical laying and short path laying.

[0072] The laying path mentioned in step 3) includes horizontal high-altitude cable tray 5 path, vertical shaft path or short path laying.

[0073] In step 5), during the automatic laying of cable 9, the operator coordinates the traction speed of the intelligent cable conveyor 2 and the motorized winch 6 through real-time communication to keep them basically consistent.

[0074] According to the direction and bending requirements of the laying path, the structure, support point position, and quantity of the cable conveying auxiliary device 3 are dynamically adjusted to control the bending radius of the cable 9 and prevent it from falling off the predetermined path. The automatic cable laying method of the present invention dynamically adjusts the structure, position, and quantity of the cable conveying auxiliary tools according to the path, ensuring that the bending radius of the cable 9 is compliant and reliably positioned to prevent it from falling off the support, thereby meeting the bending radius requirements of the cable 9 and ensuring that the cable 9 is positioned within the predetermined path.

[0075] In step 3), when arranging the cable conveying auxiliary device 3 along the laying path, one cable conveying auxiliary device 3 is arranged every 10m-15m in the horizontal section, one cable conveying auxiliary device 3 is arranged every 5m-8m in the vertical section, and 2-3 cable 9 conveying auxiliary devices 3 are arranged symmetrically at the corners.

[0076] In this embodiment of the invention, the pulling force of the motorized winch 6 is 1T-5T, and the speed is 7-10 meters / minute; the traction force of the intelligent cable conveyor 2 is 1T-2T, and the speed is 0-36 meters / minute; the wire rope 71 has a 6×19S structure.

[0077] In step 2), the fabrication of the cable conveying auxiliary device 3 includes: assembling a support frame and fabricating several support roller units 32; fixing the fabricated support roller units 32 to the support frame 31 at intervals; each support roller unit 32 consists of a rotating sleeve 321, a first bearing 322, and a rotating shaft 323; inserting the rotating shaft 323 and the first bearing 322 into the rotating sleeve 321 in sequence; fixing the outer wall of the first bearing 322 to the inner wall of the rotating sleeve 321 by welding; welding the inner wall of the first bearing 322 to the rotating shaft 323 to form a support roller unit 32 that allows the rotating sleeve 321 to rotate around the rotating shaft 323; assembling the supporting and fixing angle steel 311, the supporting channel steel 313, and the steel plate 314 into the support frame 31; fixing the two ends of the rotating shaft 323 of each support roller unit 32 to the supporting and fixing angle steel 311 and the supporting channel steel 313 respectively by limiting connecting nuts 324.

[0078] The fabrication of the cable limiting auxiliary device 8 in step 2) includes: assembling the supporting angle steel 81 and fabricating several limiting rotating roller units 82, with the several limiting rotating roller units 82 fixed to the supporting angle steel 81 at intervals.

[0079] Each limiting rotary roller unit 82 includes an outer sleeve 821, a second bearing, and a rotary shaft 822. The rotary shaft 822 and the second bearing are sequentially inserted into the outer sleeve 821, and the outer wall of the second bearing is fixed to the inner wall of the rotary sleeve 321 by welding. The inner wall of the second bearing is welded to the rotary shaft 822 to form a limiting rotary roller unit 82 that allows the outer sleeve 821 to rotate around the rotary shaft 822. The two ends of the rotary shaft 822 are installed on the supporting angle steel 81 by fixing nuts 823.

[0080] During the automatic laying of the high-altitude horizontal cable 9, the speed difference between the intelligent cable conveyor 2 and the motorized winch 6 is controlled within ±0.5 m / min.

[0081] In step 5), when laying cables in short-path, low-bend scenarios, the intelligent cable conveyor 2 is omitted, and only the motorized winch 6 is used as the traction power source, and cable conveying auxiliary devices 3 are arranged at the starting point and bending point; where short path refers to a laying length ≤ 50m, and low-bend refers to the number of path turns ≤ 2.

[0082] Compared with the prior art, the technical solution disclosed in the above embodiments has the following beneficial effects:

[0083] In the above embodiments, the automatic cable laying system of the present invention uses a motorized winch 6 and an intelligent cable conveyor 2 as the traction system. The motorized traction system, along with the cable conveying auxiliary device 3 fixed within the cable tray 5, replaces manual high-altitude climbing of the cable tray 5 for traction operations. Combined with safety measures such as double-hook safety belts for high-altitude workers, the risk of personnel losing their footing and falling or being pulled down by the moving cable 9 is significantly reduced. This achieves automated traction instead of pure manual pulling, significantly reducing manpower requirements and improving traction efficiency and controllability. The motorized winch 6 provides the main traction force, while the intelligent cable conveyor 2 provides initial pushing force near the cable reel 11 and assists in speed control. The two systems are communicated in real-time by the operator. By coordinating the traction speed, continuous and controllable cable 9 transportation is achieved, significantly reducing manpower requirements. When laying cables in vertical or high-altitude cable trays 5, the cable transportation auxiliary device 3 is reliably fixed and tightly attached to the top of the cable tray 5, ensuring that the cable 9 remains within the cable tray 5 during traction and preventing it from coming off. The use of a movable hydraulic cable laying frame 1 to replace the traditional laying frame allows the movable hydraulic cable laying frame 1 to be easily moved to the vicinity of the cable reel 11 for positioning. The use of a traction system such as a motorized winch 6 and an intelligent cable conveyor 2, in conjunction with the fixed support 4, cable tray 5, and cable transportation auxiliary device 3, can avoid manual climbing of the cable tray 5 for traction, reducing the risk of falls and improving operational safety.

[0084] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. An automatic cable laying system based on a movable hydraulic cable laying frame, characterized in that: The automated cable laying system includes, from left to right, a movable hydraulic cable laying frame, an intelligent cable conveyor, several cable conveying auxiliary devices, a fixed support, a cable tray, a motorized winch, and a rope reel, wherein: The movable hydraulic cable laying frame is fixed with a cable reel, and the cable reel's outlet end faces the inlet of the intelligent cable conveyor. The movable hydraulic cable laying frame is used to support the cable reel and realize hydraulic lifting and adjustment. Several cable conveying auxiliary devices are distributed at intervals to assist cable movement and reduce resistance during cable laying; The intelligent cable conveyor is used to control the speed and tension of the cable conveying process, and several cable conveying auxiliary devices are set on one side of the outlet of the intelligent cable conveyor. The fixing brackets are installed at both ends of the cable tray to fix the cable tray; The rope winder is located on one side of the motorized winch and is used to provide traction. A steel wire rope is connected to the rope winder. One end of the steel wire rope is wound up by the rope winder, and the other end of the steel wire rope is connected to the cable via a motorized winch.

2. The automatic cable laying system based on a movable hydraulic cable laying frame according to claim 1, characterized in that: Each cable conveying auxiliary device includes a support frame and several rotatable support roller units, which are fixed to the support frame at intervals.

3. The automatic cable laying system based on a movable hydraulic cable laying frame according to claim 2, characterized in that: Each support roller unit includes a rotating sleeve, a first bearing, and a rotating shaft. The inner wall of the rotating sleeve is welded and fixed to the outer wall of the first bearing, and the inner wall of the first bearing is welded and fixed to the rotating shaft. The rotating sleeve is sleeved on the outer circumference of the rotating shaft to form a support roller unit that enables the rotating sleeve to rotate around the rotating shaft.

4. The automatic cable laying system based on a movable hydraulic cable laying frame according to claim 2, characterized in that: The support frame includes a supporting fixed angle steel, a limiting connecting nut, a supporting channel steel, and a steel plate. The supporting fixed angle steel and the supporting channel steel are symmetrically distributed. The steel plate is fixed below the supporting fixed angle steel and the supporting channel steel. The two ends of the rotating shaft are fixed to the supporting fixed angle steel and the supporting channel steel by the limiting connecting nut.

5. The automatic cable laying system based on a movable hydraulic cable laying frame according to claim 1, characterized in that: The movable hydraulic cable laying frame includes a cable frame, a hydraulic structure, a fixing pin, and a moving mechanism. The cable reel is rotatably mounted on the cable frame to accommodate the cable. The hydraulic structure is fixedly mounted on the cable frame and connected to the cable reel. The hydraulic structure drives and controls the lifting or rotation of the cable reel. The fixing pin is detachably mounted on the cable frame. The moving mechanism is fixed to the lower end of the cable frame.

6. The automatic cable laying system based on a movable hydraulic cable laying frame according to claim 1, characterized in that: The automatic cable laying system includes a cable limiting auxiliary device, which is disposed between the fixed support and the cable tray.

7. The automatic cable laying system based on a movable hydraulic cable laying frame according to claim 6, characterized in that: The cable limiting auxiliary device includes a supporting angle steel and several limiting rotating roller units. The several limiting rotating roller units are fixed to the supporting angle steel at intervals. Each limiting rotating roller unit includes an outer sleeve, a rotating shaft, and a fixing nut. The outer sleeve is sleeved on the outside of the rotating shaft, and the two ends of the rotating shaft are installed on the supporting angle steel by fixing nuts.

8. An automatic cable laying method, characterized in that: The construction method includes the following steps: Step 1) Construction preparation: Review the construction drawings, clarify the cable laying path and requirements, check the working condition of the movable hydraulic cable laying frame, motorized winch, intelligent cable conveyor and wire rope, and clean the laying path; Step 2) Fabrication of cable auxiliary devices: Fabricate cable conveying auxiliary devices and cable limiting auxiliary devices. The cable conveying auxiliary devices are used to support and guide the cable in the laying path, and the cable limiting auxiliary devices are used to limit the cable laying path. Step 3) Deployment of traction system: Deploy motorized winch, intelligent cable conveyor, multiple cable conveying auxiliary devices, and steel wire rope along the cable laying path. The motorized winch is set at the end of the laying path, the intelligent cable conveyor is set near the cable reel, and the steel wire rope connects the motorized winch to the cable traction end. Step 4) Positioning and loading the cable reel: Position the movable hydraulic cable reel next to the cable reel, adjust and center it, and then use the shaft to lift the cable reel to the height above the ground; Step 5) Automatic cable laying: According to the construction drawings, on the horizontal high-altitude cable tray path, arrange the movable hydraulic cable laying frame, electric conveyor, multiple cable conveying auxiliary devices fixed inside the cable tray, motorized winch, and steel wire rope in sequence. Start the intelligent cable conveyor and the motorized winch. By operating the traction speed of the motorized winch and the intelligent cable conveyor, the cable is continuously laid along the laying path through the multiple cable conveying auxiliary devices.

9. The automatic cable laying system and method according to claim 8, characterized in that: In step 2), the fabrication of the cable conveying auxiliary device includes: assembling a support frame and fabricating several support roller units; fixing the fabricated support roller units to the support frame at intervals; each support roller unit consists of a rotating sleeve, a first bearing, and a rotating shaft; inserting the rotating shaft and the first bearing sequentially into the rotating sleeve; fixing the outer wall of the first bearing to the inner wall of the rotating sleeve by welding; welding the inner wall of the first bearing to the rotating shaft to form a support roller unit that allows the rotating sleeve to rotate around the rotating shaft; assembling the supporting fixing angle steel, supporting channel steel, and steel plate into a support frame; fixing both ends of the rotating shaft of each support roller unit to the supporting fixing angle steel and supporting channel steel respectively by limiting connecting nuts.

10. The automatic cable laying system and method based on a movable hydraulic cable laying frame according to claim 8, characterized in that: The fabrication of the cable limiting auxiliary device in step 2) includes: assembling the supporting angle steel and fabricating several limiting rotating roller units, which are fixed to the supporting angle steel at intervals.

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