A cable laying device for highway cable laying

Abstract

The utility model discloses a kind of cable laying device for highway cable laying, the upper end middle part both sides of its vehicle frame are respectively provided with one fixed support column, the upper end of the fixed support column is insertedly provided with one movable support frame, the upper end of each movable support is provided with one recess with opening upwards, the both ends of rotating shaft are respectively provided with bearing, the bearing is equipped with square bearing housing, the bearing housing can be placed in the recess, cable reel can be sleeved on the rotating shaft, the rear of the vehicle frame is provided with one roller assembly, two horizontal rollers and vertical rollers are respectively provided in the roller assembly, the cable on the cable reel can pass through from horizontal roller and vertical roller. The utility model vehicle frame is connected with tractor, realizes mechanization of laying, high efficiency, and is provided with horizontal roller and vertical roller, can reduce friction when cable moves in cable laying, reduce the breakage rate of cable skin, improve cable laying quality.

Description

Technical Field

[0001] This utility model relates to a cable laying equipment, and more particularly to a cable laying device for laying highway cables. Background Technology

[0002] With the accelerated construction of a modern integrated transportation system, by the end of 2024, the total mileage of expressways in my country had reached 188,000 kilometers, of which key nodes such as tunnels, bridges, and service areas covered by electromechanical engineering accounted for more than 30%. As the core carrier of electromechanical systems, power supply and distribution cables have seen an average annual growth of 25% in their laying length, with single-section ultra-long-distance laying (>5 kilometers) projects accounting for 40%.

[0003] The currently used cable laying device is a relatively simple column-mounted type with a screw-driven cable reel. The reel's inner cavity is inserted into a shaft, requiring manual leverage for lifting and lowering, which is slow and labor-intensive. During operation, the reel's weight causes the shaft to rotate, generating vibration and friction. This causes the entire reel to sway and produce a harsh noise, with inconsistent rotation speeds, posing a significant safety hazard. Furthermore, it has the following shortcomings: 1. Efficiency: Manual cable laying only yields 200-300 meters per day on average, resulting in low work efficiency; 2. Safety aspects: Large-diameter cables of 240mm² or more require 10-15 people to pull them together, with each person carrying a load of over 20kg. The injury rate of construction workers is 2.3 times higher than that of conventional projects. 3. Quality aspect: The damage rate of the outer sheath of traditionally drag-lay cables is 18.7%, and the subsequent failures caused by the outer sheath damage account for 35% of electromechanical system accidents. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a cable laying device for highway cable laying that is easy to use, flexible to rotate, highly efficient and causes less damage to the cable sheath.

[0005] The technical solution of this utility model is: A cable laying device for highway cable laying includes a frame. The lower end of the frame is equipped with a traveling wheel and a steering wheel. The front end of the frame can be connected to a tractor. A fixed support column is installed on each side of the upper middle portion of the frame. A movable support frame is inserted into the upper end of each fixed support column. Each movable support has an upward-opening groove at its upper end. Bearings are installed at both ends of a rotating shaft. Square bearing seats are fitted around the bearings and can be placed in the grooves. A cable reel can be mounted on the rotating shaft. A roller assembly is installed at the upper rear of the frame. The roller assembly contains two horizontal rollers and two vertical rollers, through which the cable on the cable reel can pass.

[0006] Furthermore, a fixed plate is provided at the upper rear of the frame, and the lower end of the roller assembly is slidably connected to the upper end of the fixed plate through a guide rail pair, allowing it to slide left and right.

[0007] Furthermore, a lifting adjustment mechanism is provided between the fixed plate and the vehicle frame, which can change the ground clearance. The lifting adjustment mechanism adopts a screw and nut structure, an electric screw structure, or a motor and lead screw structure.

[0008] Furthermore, the vehicle frame adopts a split-combination structure, consisting of a support frame and a traction frame, with the rear end of the traction frame and the front end of the support frame connected together by bolts or welds.

[0009] Furthermore: diagonal supports are provided on both sides of the fixed support column, and the fixed support column is a square steel pipe, or the fixed support column is a square steel column with a square central countersunk hole at the upper end.

[0010] The beneficial effects of this utility model are: 1. The frame of this utility model is connected to the tractor to realize mechanized cable laying, which is highly efficient. It is also equipped with horizontal and vertical rollers, which can reduce the friction of the cable during cable movement, reduce the damage rate of the cable sheath, and improve the quality of cable laying.

[0011] 2. The lower end of the roller assembly of this utility model is connected to the sliding guide rail of the fixed plate, which can move left and right. When the cable is laid out, the cable moves back and forth on the cable reel, and the roller assembly moves back and forth on the fixed plate, so that the roller assembly and the cable are aligned. In addition, the rollers in the roller assembly are equipped with bearings at both ends or use self-lubricating materials to reduce friction and make the rotation more flexible.

[0012] 3. The fixed support column and the movable support frame of this utility model adopt a plug-in movable connection, which allows the movable support frame to be replaced and is easy to adapt to cable reels of different diameters.

[0013] 4. The movable support frame of this utility model is provided with a groove, and bearings are provided at both ends of the rotating shaft. A square bearing seat is fitted over the bearing. The bearing seat can be placed in the groove to restrict the horizontal movement of the rotating shaft. At the same time, the bearing can improve the rotational flexibility of the rotating shaft.

[0014] 5. The fixing plate of this utility model can move up and down through the lifting mechanism to better adapt to the changes in the height above the ground during the cable laying process. The lifting mechanism can adopt a screw and nut structure or an electric screw structure, and there are various forms.

[0015] 6. The frame of this utility model adopts a split-combination structure, consisting of a support frame and a traction frame, which reduces the manufacturing cost of the split-type components.

[0016] 7. This utility model is easy to operate. After the bearing is installed, the mechanical friction is almost zero. The cable reel rotates freely, evenly and without noise. In addition, it is suitable for cable reels of different sizes, which is easy to promote and implement. After promotion, the economic benefits are obvious. Attached Figure Description

[0017] Figure 1 A schematic diagram of a cable laying device for laying highway cables; Figure 2 for Figure 1 The image shows a top view of a cable laying device for laying cables on a highway. Figure 3 for Figure 1 Left view of the middle roller assembly; Figure 4 for Figure 1 The right view of the roller assembly shown; Figure 5 for Figure 1 The diagram shows the structure of the support frame. Figure 6 for Figure 5 The diagram shows the extended structure of the support frame. Detailed Implementation

[0018] Example 1: See Figures 1-6 In the diagram, 1-support frame, 2-walking wheel, 3-steering wheel, 4-traction frame, 5-fixed support column, 6-movable support frame, 7-bearing seat, 8-rotating shaft, 9-cable reel, 10-adjusting screw, 11-fixed plate, 12-roller assembly, 13-guide rail pair, 14-horizontal roller, 15-vertical roller, 16-extension rod.

[0019] A cable-laying device for highway cable laying includes a frame. The frame adopts a split-combination structure, consisting of a support frame 1 and a traction frame 4. Connecting plates are respectively provided at the rear end of the traction frame 4 and the front end of the support frame. The connecting plates at both ends are connected together by bolts and can be disassembled. Of course, the connecting plates at both ends can also be welded together, depending on the specific situation. The traction frame 4 can adopt either a square or triangular structure; this embodiment uses a triangular structure. Correspondingly, two or one steering wheels 3 can be used; this embodiment uses one. The front end of the traction frame 4 can be connected to a tractor (not shown in the figure). The lower end of the support frame 1 can be provided with two or four traveling wheels 2, wherein: the upper middle part of the support frame 1... A fixed support column 5 is set on each side. A movable support frame 6 is plugged into the upper end of the fixed support column 5 (the two are clearance fit and can be disassembled and replaced). Each movable support 6 has an upward-facing groove at its upper end. Bearings are set at both ends of the rotating shaft 8. A square bearing seat 7 is fitted on the bearing (the bearing assembly 7 is a two-part structure, fixed together by connecting bolts. The square structure can match the groove and restrict the horizontal movement of the rotating shaft 8). The cable reel 9 can be fitted on the rotating shaft 8. A roller assembly 12 is set at the upper rear of the support frame 1. Two horizontal rollers 14 and two vertical rollers 15 are set in the roller assembly 12. The cable on the cable reel 9 can pass through the two horizontal rollers 14 and the two vertical rollers 15.

[0020] Preferred solution: A fixed plate 11 is provided at the upper rear of the support frame 1, and the lower end of the roller assembly 12 is slidably connected to the upper end of the fixed plate 11 through a guide rail pair 13 (the guide rail pair 13 in the figure is a dovetail groove and dovetail block structure, and of course, a guide rod and guide sleeve structure can also be used, which are not listed one by one), which can slide left and right.

[0021] Preferred solution: A lifting adjustment mechanism is provided between the fixed plate 11 and the supporting frame 1 to change the ground clearance. The lifting adjustment mechanism adopts a screw 10 and nut structure, an electric screw structure, or a motor and lead screw structure. In this embodiment, the screw 10 and nut structure is adopted. The lower end of the fixed plate 11 is provided with a T-slot, the end of the screw 10 is located in the T-slot, the lower end of the screw 10 passes through the through hole on the supporting frame 1, and a nut is provided on the screw 10. Rotating the nut can change the height of the screw 10, thereby changing the ground clearance of the roller assembly 12.

[0022] Preferred solution: The fixed support column 5 is provided with diagonal supports on both sides. The fixed support column 5 is a square steel pipe, or the fixed support column 5 is a square steel column with a square central countersunk hole at the top. Furthermore, the lower end of the movable support frame 6 is provided with an insert block that can be inserted into the inner hole of the square steel pipe or the central countersunk hole of the steel column.

[0023] In use, select movable support frames 6 of different heights according to the size of the cable reel 9, and... Figure 5 and Figure 6 As can be seen, the heights of the movable support frames 6 vary, and some are equipped with extension rods 16 of different lengths to achieve different heights. Of course, the position of the screw 10 can also be adjusted according to the size of the cable reel 9 so that the roller assembly 12 matches the cable height. Furthermore, the position of the screw 10 can be adjusted again during cable laying, as the cable height changes continuously.

[0024] The cable reel 9 is mounted on the rotating shaft 8. The rotating shaft 8 and the cable reel 9 are lifted together using hoisting equipment and placed in the groove at the upper end of the movable support frame 6. The front end of the tractor frame 4 is connected to the tractor. The tractor is started and the cable reel 9 is moved to the highway cable laying location. The cable on the cable reel 9 is laid through two horizontal rollers 14 and two vertical rollers 15. In this way, the cable is in rolling contact in all directions, resulting in low friction and minimal damage to the cable sheath.

[0025] Example 2: This example is basically the same as Example 1, and the similarities will not be repeated. The difference is that the frame is an integral structure. In addition, the lifting and adjusting mechanism adopts an electric screw structure, which saves effort and time and reduces labor intensity.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A cable-laying device for highway cable laying, comprising a frame, wherein the lower end of the frame is respectively provided with a traveling wheel and a steering wheel, and the front end of the frame can be connected to a tractor, characterized in that: A fixed support column is provided on each side of the upper middle part of the frame. A movable support frame is inserted into the upper end of the fixed support column. Each movable support has an upward-opening groove at its upper end. Bearings are provided at both ends of the rotating shaft. A square bearing seat is fitted over the bearing and can be placed in the groove. The cable reel can be fitted onto the rotating shaft. A roller assembly is provided at the upper rear part of the frame. The roller assembly has two horizontal rollers and two vertical rollers. The cable on the cable reel can pass through the two horizontal rollers and the two vertical rollers.

2. The cable laying device for highway cable laying according to claim 1, characterized in that: A fixed plate is provided at the upper rear of the frame, and the lower end of the roller assembly is slidably connected to the upper end of the fixed plate through a guide rail pair, allowing it to slide left and right.

3. The cable laying device for highway cable laying according to claim 2, characterized in that: A lifting adjustment mechanism is provided between the fixed plate and the vehicle frame, which can change the height above the ground. The lifting adjustment mechanism adopts a screw and nut structure, an electric screw structure, or a motor and lead screw structure.

4. The cable laying device for highway cable laying according to claim 1, characterized in that: The frame adopts a split-combination structure, consisting of a support frame and a tractor frame. The rear end of the tractor frame and the front end of the support frame are connected together by bolts or welds.

5. A cable laying device for highway cable laying according to claim 1, characterized in that: The fixed support column is provided with diagonal supports on both sides. The fixed support column is a square steel pipe, or the fixed support column is a square steel column with a square central countersunk hole at the top.

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