Low-altitude economic cable shielding layer coating equipment

Abstract

The application is suitable for the technical field of cable production, and provides a low-altitude economic cable shielding layer coating equipment, which comprises an equipment base and an equipment rack, and further comprises: an inner fixing pipe which is fixedly installed on the equipment rack, an outer rotating pipe which is installed on the inner fixing pipe, a plurality of telescopic adjusting cylinders which are fixed on the outer rotating pipe, a bearing seat which is fixedly installed on one end of the telescopic adjusting cylinder away from the outer rotating pipe, a support beam which is adjustably and slidably arranged in the bearing seat, a material releasing wheel which is arranged on one end of the support beam away from the equipment rack and used for bearing a shielding layer, a wheel shaft which is fixedly arranged in the middle of the material releasing wheel, the wheel shaft being rotationally connected with the support beam, and a regulating and controlling assembly which is further installed on the support beam and used for damping control of the wheel shaft; and a driving assembly which is installed on the equipment rack and used for driving the outer rotating pipe to rotate. Through the synergistic effect of the adjustable support beam, the telescopic adjusting cylinder and the damping control assembly, the regulating and stable releasing of the multi-layer coating of the shielding layer are realized, and the coating efficiency and quality are significantly improved.

Description

Technical Field

[0001] This invention belongs to the field of cable production technology, and in particular relates to a shielding layer coating device for low-altitude economic cables. Background Technology

[0002] In the field of power cable manufacturing, especially in power transmission systems used in low-altitude economic facilities, cross-linked polyethylene insulated power cables (XLPE cables) have become the mainstream choice due to their excellent electrical properties, heat resistance, and long service life.

[0003] However, in the production process of this type of cable, the quality of the shielding layer directly affects its electromagnetic interference resistance and operational stability. Traditional shielding equipment often adopts a fixed structure design, which is difficult to adapt to the diverse requirements of different specifications of XLPE cables for the number of shielding material layers, angles, and tensions. This can easily lead to problems such as uneven winding of the shielding tape, loosening, or even interlayer interference, seriously affecting the quality and performance of the finished cable.

[0004] While some existing equipment possesses tension adjustment or rotational wrapping functions, it still has significant shortcomings in terms of synchronous winding of multi-layer shielding and tension release control. Therefore, there is an urgent need to provide a low-altitude economic cable shielding layer wrapping equipment with a reasonable structure, flexible adjustment, and integrated damping control function to meet the processing requirements of high-quality cross-linked polyethylene insulated power cables. Summary of the Invention

[0005] The purpose of this invention is to provide a low-altitude economic cable shielding layer covering device, which aims to solve the problems mentioned in the background art.

[0006] This invention is implemented as follows: a low-altitude economic cable shielding layer coating device, comprising a device base and a device frame fixed thereon, and further comprising:

[0007] An inner fixed tube is installed and fixed on the equipment frame for cable passage. An outer rotating tube is rotatably installed on the inner fixed tube. Multiple telescopic adjustment cylinders are circumferentially fixed on the outer rotating tube. A bearing seat is installed and fixed at the end of the telescopic adjustment cylinder away from the outer rotating tube. A support beam is slidably installed in the bearing seat. A material release wheel for supporting the shielding layer is provided at the end of the support beam away from the equipment frame. An axle is fixed in the middle of the material release wheel. The axle is rotatably connected to the support beam. An adjustment component for damping control of the axle is also installed on the support beam.

[0008] A drive assembly, mounted on the equipment frame, is used to drive the outer rotating tube to rotate;

[0009] The regulating assembly comprises a threaded matching cylinder slidingly arranged inside the support beam, the inside of the threaded matching cylinder is threadedly connected with a threaded rod, the threaded rod extends out of the end of the support beam away from the material releasing wheel and is fixed with an adjusting knob, the end of the wheel shaft away from the material releasing wheel is fixed with a damping column, the end of the threaded matching cylinder close to the damping column is fixed with a plurality of elastic damping strips matched with the damping column, and the end of the elastic damping strip away from the threaded matching cylinder is fixedly connected with the inside cavity wall of the support beam.

[0010] Further technical solutions, the inner fixed tube is horizontally arranged through the equipment rack; the telescopic adjusting cylinder is arranged vertically to the surface of the outer rotating tube, and a second fastening bolt for locking after adjustment is further arranged on the telescopic adjusting cylinder.

[0011] Further technical solutions, the support beam is arranged in parallel to the outer rotating tube, guide grooves are arranged on both sides of the support beam, first guide edges slidably connected with the guide grooves are fixed on both sides of the bearing seat, and first fastening bolts for locking and fixing the support beam are further arranged on both sides of the bearing seat.

[0012] Further technical solutions, the inside cavity wall of the support beam is fixed with a second guide edge slidably connected with the threaded matching cylinder, and the threaded rod is in damping rotary connection with the end of the support beam.

[0013] Further technical solutions, the damping column and the wheel shaft are coaxially arranged, the diameter of the damping column is smaller than that of the wheel shaft, and the end of the damping column away from the wheel shaft is in arc shape matched with the elastic damping strip.

[0014] Further technical solutions, further comprising a cleaning and dust removing assembly, the cleaning and dust removing assembly comprises a linking ring rotatably arranged on the inner fixed tube, a plurality of dust extraction pipes are fixed on the side of the linking ring away from the equipment rack, cleaning brushes are fixed on the side of the dust extraction pipes facing the cable, a plurality of dust suction holes are arranged on the side of the dust extraction pipes facing the cable, a fixing sleeve is rotatably arranged on the outside of the linking ring, the fixing sleeve is fixedly connected with the equipment rack through a stabilizing frame, a communication pipeline is arranged on the fixing sleeve, the communication pipeline is in communication with the dust suction holes through the inside cavity of the fixing sleeve, the inside cavity of the linking ring, the inside cavities of the dust extraction pipes in sequence, the other end of the communication pipeline is connected with a dust collecting box fixed on the top of the equipment rack, a dust separation filter plate is arranged on the inside of the dust collecting box, the communication pipeline is in communication with the space below the dust separation filter plate, and a dust suction fan in communication with the space above the dust separation filter plate is arranged on the top of the dust collecting box; the driving assembly is further used for driving the rotation of the linking ring.

[0015] Further technical solutions, an arc-shaped dust isolation plate is fixed between two adjacent dust extraction pipes, and the dust separation filter plate is arranged in an inclined manner, and a dust cleaning port is arranged on the side wall of the dust collecting box corresponding to the lower end of the dust separation filter plate.

[0016] Further, the driving assembly comprises a motor bracket fixed on the equipment rack, a motor fixed on the motor bracket, an output shaft of the motor rotating through the equipment rack, a first main pulley and a second main pulley fixed on the output shaft of the motor on two sides of the equipment rack, a first slave pulley fixed on the outer rotating pipe, the first slave pulley connected with the first main pulley through a first transmission belt, and a second slave pulley fixed on the side of the connecting ring away from the dust extraction pipe, the second slave pulley rotatingly connected with the inner fixed pipe and connected with the second main pulley through a second transmission belt.

[0017] The low-altitude economic cable shielding layer coating device has the following beneficial effects:

[0018] According to the number of shielding layers required to be coated, a proper number of support beams are selected, the support beams can be moved and adjusted relative to the bearing seat, the material release wheel can be staggered in position as required, interference can be avoided, and the coating effect can be improved.

[0019] The telescopic adjusting cylinder can be length-adjusted to further control the shielding layer coating.

[0020] The cable uniformly passes through the inner fixed pipe, the outer rotating pipe is driven to rotate by the driving assembly, the shielding layer can be coated on the surface of the cable, and the cable can be coated with multiple shielding layers as required.

[0021] In addition, the damping control assembly can control the damping of the wheel shaft, specifically by rotating the adjusting knob to drive the threaded rod to rotate, the threaded rod and the threaded matching cylinder are threadedly connected, the threaded matching cylinder is slidingly connected with the inner cavity of the support beam, the threaded matching cylinder can be moved, and the elastic damping strip is compressed, the abutting force of the elastic damping strip and the damping column is controlled, the required rotating force of the wheel shaft is controlled, the material release wheel releases the shielding layer more reliably, and the shielding layer is coated on the surface of the cable with the required force; the elastic damping strip abuts against the outer side of the damping column, and the reliability of the wheel shaft control is improved.

[0022] In summary, the adjustable support beam, the telescopic adjusting cylinder and the damping control assembly cooperate to realize the control and stable release of the multi-layer shielding layer coating, and the coating efficiency and quality are significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The low-altitude economic cable shielding layer coating device provided by the embodiment of the present application has the overall structure schematic diagram;

[0024] Figure 2 The Figure 1 The enlarged structure schematic diagram of part A;

[0025] Figure 3 The Figure 1Another perspective partial structure schematic diagram of the low-altitude economic cable shielding layer coating equipment;

[0026] Figure 4 The main view of the support beam part of the low-altitude economic cable shielding layer coating equipment provided by the embodiment of the application is shown in the schematic diagram of the cross-sectional structure.

[0027] Figure 5 For Figure 4 The partial perspective structure schematic diagram of the low-altitude economic cable shielding layer coating equipment is shown in the schematic diagram of the cross-sectional structure.

[0028] Figure 6 For Figure 3 The main view of the support beam part of the low-altitude economic cable shielding layer coating equipment provided by the embodiment of the application is shown in the schematic diagram of the cross-sectional structure.

[0029] In the figure: 1-equipment rack, 2-equipment base, 3-motor bracket, 4-motor, 5-second transmission belt, 6-stabilizing frame, 7-cable, 8-dust isolation plate, 9-dust extraction pipe, 10-fixing collar, 11-communication pipeline, 12-dust extraction fan, 13-dust collection box, 14-first driven pulley, 15-material release wheel, 16-wheel shaft, 17-outer rotating pipe, 18-inner fixed pipe, 19-shielding layer, 20-supporting beam, 21-bearing seat, 22-first main pulley, 23-first transmission belt, 24-first fastening bolt, 25-second fastening bolt, 26-telescopic adjusting cylinder, 27-guide groove, 28-first guide rib, 29-cleaning brush, 30-linking ring, 31-second driven pulley, 32-second main pulley, 33-threaded rod, 34-second guide rib, 35-threaded fitting cylinder, 36-elastic damping strip, 37-damping column, 38-adjusting knob, 39-dust isolation filter plate, 40-dust removal port, 41-dust extraction hole. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the application more clear and understandable, the application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the application and do not limit the application.

[0031] The specific implementation of the application is described in detail below in combination with specific examples.

[0032] As Figure 1 , 2 , 4 and 5, a low-altitude economic cable 7 shielding layer 19 coating equipment provided by an embodiment of the application, comprising an equipment base 2 and an equipment rack 1 fixed thereon, further comprising:

[0033] The inner fixing pipe 18 is fixedly installed on the equipment rack 1, the inner fixing pipe 18 is used for the cable 7 to pass through, the outer rotating pipe 17 is rotatably installed on the inner fixing pipe 18, a plurality of telescopic adjusting cylinders 26 are fixedly arranged on the outer rotating pipe 17 in the circumferential direction, a bearing seat 21 is fixedly installed on the end of the telescopic adjusting cylinder 26 away from the outer rotating pipe 17, a support beam 20 is slidably arranged in the bearing seat 21, a material releasing wheel 15 for bearing the shielding layer 19 is arranged on the end of the support beam 20 away from the equipment rack 1, a wheel shaft 16 is fixedly arranged in the middle of the material releasing wheel 15, and the wheel shaft 16 is rotatably connected with the support beam 20; and a regulating assembly for damping control of the wheel shaft 16 is further installed on the support beam 20.

[0034] A driving assembly is further installed on the equipment rack 1 and used for driving the outer rotating pipe 17 to rotate.

[0035] The regulating assembly comprises a threaded matching cylinder 35 slidably arranged on the inner side of the support beam 20, a threaded rod 33 threadedly connected with the inner side of the threaded matching cylinder 35, the threaded rod 33 extending out of the end of the support beam 20 away from the material releasing wheel 15 and being fixedly provided with an adjusting knob 38, a damping column 37 fixedly arranged on the end of the wheel shaft 16 away from the material releasing wheel 15, a plurality of elastic damping strips 36 fixedly arranged on the end of the threaded matching cylinder 35 close to the damping column 37 and matched with the damping column 37, and the end of the elastic damping strip 36 away from the threaded matching cylinder 35 is fixedly connected with the inner side cavity wall of the support beam 20.

[0036] In the embodiment of the application, according to the required number of layers of the coated shielding layer 19, a proper number of support beams 20 are selected, the support beam 20 can be moved and adjusted relative to the bearing seat 21, the material releasing wheel 15 can be staggered as required, interference can be avoided, and the coating effect can be improved. The telescopic adjusting cylinder 26 can be length-adjusted, and the shielding layer 19 coating can be further regulated. The cable 7 uniformly passes through the inner fixing pipe 18, the outer rotating pipe 17 is driven to rotate by the driving assembly, the shielding layer 19 can be coated on the surface of the cable 7, and the cable 7 can be coated by multiple layers of shielding layers 19 arranged in a staggered manner. In addition, the wheel shaft 16 can be controlled in damping by the arranged regulating assembly. Specifically, the threaded rod 33 is rotated by rotating the adjusting knob 38, the threaded rod 33 and the threaded matching cylinder 35 are threadedly connected, the threaded matching cylinder 35 is slidably connected with the inner cavity of the support beam 20, the threaded matching cylinder 35 can be moved, the elastic damping strip 36 is compressed, the abutting force of the elastic damping strip 36 and the damping column 37 is regulated, the required rotating force of the wheel shaft 16 is controlled, the material releasing wheel 15 more reliably releases the shielding layer 19, and the shielding layer 19 is coated on the surface of the cable 7 with the required force; the elastic damping strip 36 abuts against the outer side of the damping column 37, and the reliability of the wheel shaft 16 control is improved.

[0037] In summary, the application realizes the regulation and stable release of the multi-layered shielding layer 19 through the cooperation of the adjustable support beam 20, the telescopic adjusting cylinder 26 and the damping control assembly, and significantly improves the coating efficiency and quality.

[0038] As shown in Figure 1 , 2 , 4 and 5, as a preferred embodiment of the application, the inner fixed tube 18 is arranged horizontally through the equipment rack 1, which is conducive to the reliable passing of the cable 7.

[0039] The telescopic adjusting cylinder 26 is arranged vertically to the surface of the outer rotating tube 17, and a second fastening bolt 25 for locking after adjustment is further arranged on the telescopic adjusting cylinder 26.

[0040] The support beam 20 is arranged parallel to the outer rotating tube 17, and guide grooves 27 are arranged on both sides of the support beam 20. The first guide edges 28 are in U shape, and first guide edges 28 are fixed on both sides of the branches of the first guide edges 28 and are in sliding connection with the guide grooves 27, which improves the reliability of the sliding adjustment of the support beam 20. First fastening bolts 24 for locking and fixing the support beam 20 are further arranged on both sides of the bearing seat 21. In order to facilitate the installation of the support beam 20, the end of the support beam 20 away from the material release wheel 15 is chamfered.

[0041] As shown in Figure 4 and 5 , a second guide edge 34 in sliding connection with a threaded matching cylinder 35 is further fixed on the inner cavity wall of the support beam 20, which improves the reliability of the movement of the threaded matching cylinder 35; the threaded rod 33 is further in damping rotary connection with the end of the support beam 20, which improves the stability of the whole after the rotary adjustment of the threaded rod 33. Third fastening bolts (not shown) for locking the threaded rod 33 can also be arranged as needed, which will not be described here.

[0042] The surface of the material release wheel 15 is provided with anti-skid lines (not shown), and the rim of the material release wheel 15 adopts a detachable baffle structure, which is convenient for replacing shielding tapes of different widths.

[0043] The damping column 37 and the wheel shaft 16 are coaxial, and the diameter of the damping column 37 is smaller than that of the wheel shaft 16. The end of the damping column 37 away from the wheel shaft 16 is in arc shape matched with the elastic damping strip 36, which improves the reliability of the abutment damping of the elastic damping strip 36 and the damping column 37. The elastic damping strip 36 can be covered with a friction layer made of an elastic metal material, such as a metal spring sheet and a friction type damping sheet, which can generate greater damping force as the abutment force increases, so that the elastic damping strip 36 and the damping column 37 can reliably cooperate.

[0044] As shown in Figure 1 , 3As shown in Figs. 6, as a preferred embodiment of the present application, the low-altitude economic cable 7 shielding layer 19 covering device further comprises a cleaning and dust removing assembly, the cleaning and dust removing assembly further comprises a connecting ring 30 rotatably mounted on the inner fixed tube 18, a plurality of dust extraction pipes 9 are fixedly arranged on the connecting ring 30 away from the device rack 1, a cleaning brush 29 is fixed on one side of the dust extraction pipe 9 facing the cable 7, and a plurality of dust suction holes 41 are formed on the side of the dust extraction pipe 9 facing the cable 7, a fixed sleeve 10 is rotatably mounted on the outside of the connecting ring 30, the fixed sleeve 10 is fixedly connected with the device rack 1 through the stabilizing frame 6, a communication pipe 11 is mounted on the fixed sleeve 10, the communication pipe 11 is in communication with the dust suction holes 41 through the inner cavities of the fixed sleeve 10, the connecting ring 30 and the dust extraction pipe 9 in sequence, the other end of the communication pipe 11 is connected with a dust collection box 13 fixedly arranged on the top of the device rack 1, a dust separation filter plate 39 is arranged on the inner side of the dust collection box 13, the communication pipe 11 is in communication with the space on the lower side of the dust separation filter plate 39, a dust suction fan 12 is mounted on the top of the dust collection box 13 and is in communication with the space on the upper side of the dust separation filter plate 39, and the dust suction fan 12 is used to extract air in the dust collection box 13. The driving assembly is further used to drive the connecting ring 30 to rotate.

[0045] Preferably, in order to improve the dust removal performance, an arc-shaped dust separation plate 8 is further fixed between two adjacent dust extraction pipes 9.

[0046] Preferably, the fixed sleeve 10 and the connecting ring 30 are in communication through a plurality of communication holes uniformly arranged on the outer wall of the connecting ring 30, which is conducive to the passage of dust and does not affect the continuous rotation of the connecting ring 30.

[0047] Preferably, the dust separation filter plate 39 is arranged obliquely, and a dust cleaning port 40 is further arranged on the side wall of the dust collection box 13 corresponding to the lower end of the dust separation filter plate 39, which is conducive to the aggregation and discharge of dust. In addition, the inner cavity of the dust collection box 13 can be adaptively arranged obliquely at the bottom, which is conducive to the aggregation of dust towards the dust cleaning port 40.

[0048] For the cleaning and dust removing assembly, the connecting ring 30 is driven to rotate by the driving assembly, and the dust suction fan 12 works at the same time. The rotating cleaning brush 29 can clean the surface of the cable 7, and the dust suction holes 41 can generate negative pressure for dust extraction, which can ensure the cleanliness of the surface of the cable 7 and provide protection for the subsequent shielding layer 19 covering.

[0049] As shown in Figs. 6, Figure 1 and 3As shown, as a preferred embodiment of the present application, the driving assembly comprises a motor bracket 3 fixed on the equipment rack 1, a motor 4 fixed on the motor bracket 3, an output shaft of the motor 4 rotating through the equipment rack 1, and a first main pulley 22 and a second main pulley 32 fixed on the output shaft of the motor 4 on both sides of the equipment rack 1, a first slave pulley 14 fixed on the outer rotating pipe 17, the first slave pulley 14 connected with the first main pulley 22 through a first transmission belt 23, and a second slave pulley 31 fixed on the side of the connecting ring 30 away from the dust extraction pipe 9, the second slave pulley 31 rotatingly connected with the inner fixed pipe 18, and the second slave pulley 31 connected with the second main pulley 32 through a second transmission belt 5.

[0050] Through the specific arrangement of the driving assembly, the outer rotating pipe 17 and the connecting ring 30 can be simultaneously driven to rotate, the effect of cleaning and dust removal first and then covering the shielding layer 19 is realized, and the overall processing quality is improved.

[0051] In the above embodiment of the present application, a low-altitude economic cable shielding layer covering equipment is provided, and the working principle is as follows:

[0052] The equipment mainly comprises an equipment base 2, an equipment rack 1, an inner fixed pipe 18 and an outer rotating pipe 17. The cable 7 passes through the inner fixed pipe 18 to ensure stable operation, and a plurality of telescopic adjusting cylinders 26 are installed on the outer rotating pipe 17 for supporting and adjusting the position of the material release wheel 15.

[0053] The end of each telescopic adjusting cylinder 26 is connected with a bearing seat 21, a supporting beam 20 is slidingly arranged in the bearing seat 21, the material release wheel 15 is installed at the end of the supporting beam 20 for releasing the shielding layer 19. According to the required number of covering layers, a proper number of supporting beams 20 can be selected, and the positions of the supporting beams 20 are slidingly adjusted through the guide groove 27 and the first guide rib 28 to avoid interference between the shielding layers 19.

[0054] The supporting beam 20 is internally provided with a regulating assembly comprising a threaded rod 33, a threaded matching cylinder 35 and an elastic damping strip 36. Rotating the adjusting knob 38 drives the threaded rod 33 to rotate, pushes the threaded matching cylinder 35 to move, compresses the elastic damping strip 36, and makes the elastic damping strip 36 tightly adhere to the damping column 37, so as to apply controllable damping to the wheel shaft 16, and ensure that the shielding layer 19 is released with constant tension.

[0055] The equipment is also provided with a cleaning and dust removal assembly comprising a connecting ring 30, a dust extraction pipe 9, a cleaning brush 29 and a dust suction fan 12. The connecting ring 30 is driven to rotate by the driving assembly, the cleaning brush 29 cleans the surface of the cable 7, and at the same time, the dust suction hole 41 sucks the dust into the dust collection box 13 through the communication pipeline 11, thereby improving the quality of subsequent shielding layer 19 covering.

[0056] The driving assembly is composed of the motor 4, transmission belts and a plurality of belt pulleys. The output shaft of the motor 4 drives the outer rotating tube 17 to rotate through the first transmission belt 23, so as to realize the winding of the shielding layer 19; at the same time, the second transmission belt 5 drives the connecting ring 30 to rotate, so as to realize the synchronization of the cleaning of the cable 7 and the coating of the shielding layer 19.

[0057] Through the cooperation of the adjustable support beam 20, the telescopic adjusting cylinder 26 and the damping control assembly (regulating assembly), in combination with the cleaning and dust removing function, the device realizes the efficient, stable and accurate control of the multi-layer coating of the shielding layer 19, and significantly improves the quality and efficiency of the cable shielding processing.

[0058] The control of each component can be realized by using the PLC controller disclosed in the prior art, and the type and circuit connection of each component are not specifically limited, and can be flexibly set in actual application.

[0059] The circuits, electronic components and modules involved are all prior art, and those skilled in the art can realize them without further description, and the content protected by the present application does not involve the improvement of software and methods.

[0060] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0061] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as the limitation of the patent scope of the present application. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A low-altitude economic cable shielding layer covering device, comprising a device base (2) and a device frame (1) fixed thereon, characterized in that, Also includes: An inner fixed tube (18) is installed and fixed on the equipment frame (1) for the cable (7) to pass through. An outer rotating tube (17) is rotatably installed on the inner fixed tube (18). Multiple telescopic adjustment cylinders (26) are circumferentially fixed on the outer rotating tube (17). A bearing seat (21) is installed and fixed at the end of the telescopic adjustment cylinder (26) away from the outer rotating tube (17). A support beam (20) is slidably provided in the bearing seat (21). A material release wheel (15) for carrying the shielding layer (19) is provided at the end of the support beam (20) away from the equipment frame (1). A wheel axle (16) is fixed in the middle of the material release wheel (15). The wheel axle (16) is rotatably connected to the support beam (20). An adjustment component for damping control of the wheel axle (16) is also installed on the support beam (20). A drive assembly, mounted on the equipment frame (1), is used to drive the outer rotating tube (17) to rotate; The control component includes a threaded sleeve (35) slidably disposed inside the support beam (20). The inner side of the threaded sleeve (35) is threadedly connected to a threaded rod (33). The threaded rod (33) extends from the end of the support beam (20) away from the material release wheel (15) and is fixed with an adjustment knob (38). The end of the wheel axle (16) away from the material release wheel (15) is fixed with a damping column (37). The end of the threaded sleeve (35) near the damping column (37) is circumferentially fixed with a plurality of elastic damping strips (36) that cooperate with the damping column (37). The end of the elastic damping strip (36) away from the threaded sleeve (35) is fixedly connected to the inner cavity wall of the support beam (20).

2. The low-altitude economic cable shielding layer covering device according to claim 1, characterized in that, The internal fixed tube (18) is horizontally installed through the equipment frame (1); The telescopic adjustment cylinder (26) is set perpendicular to the surface of the outer rotating tube (17), and a second fastening bolt (25) for locking after adjustment is also installed on the telescopic adjustment cylinder (26).

3. The low-altitude economic cable shielding layer covering device according to claim 2, characterized in that, The support beam (20) is set parallel to the outer rotating tube (17), and guide grooves (27) are provided on both sides of the support beam (20). The first guide rib (28) that is slidably connected to the guide groove (27) is fixed on both sides of the bearing seat (21). The bearing seat (21) is also equipped with first fastening bolts (24) on both sides for locking and fixing the support beam (20).

4. The low-altitude economic cable shielding layer covering device according to claim 3, characterized in that, The inner cavity wall of the support beam (20) is fixed with a second guide rib (34) that is slidably connected to the threaded sleeve (35). The threaded rod (33) is connected to the end of the support beam (20) with damped rotation.

5. The low-altitude economic cable shielding layer covering device according to claim 4, characterized in that, The damping column (37) and the wheel axle (16) are arranged coaxially, and the diameter of the damping column (37) is smaller than the diameter of the wheel axle (16); The end of the damping column (37) away from the wheel axle (16) is an arc shape that matches the elastic damping strip (36).

6. The low-altitude economic cable shielding layer covering device according to any one of claims 1-5, characterized in that, It also includes a cleaning and dust removal assembly, which includes a connecting ring (30) rotatably mounted on the inner fixed tube (18). Multiple dust extraction pipes (9) are circumferentially fixed on the side of the connecting ring (30) away from the equipment frame (1). A cleaning brush (29) is fixed on the side of the dust extraction pipe (9) facing the cable (7), and several dust suction holes (41) are opened on the side of the dust extraction pipe (9) facing the cable (7). A fixing ring (10) is rotatably installed on the outside of the connecting ring (30). The fixing ring (10) is connected and fixed to the equipment frame (1) through the stabilizing frame (6). A connecting pipe (11) is installed on the fixing ring (10). The connecting pipe (11) passes through the inner cavity of the fixing ring (10), the inner cavity of the connecting ring (30), and the inner cavity of the dust extraction pipe (9) in sequence and connects to the dust extraction hole (41). The other end of the connecting pipe (11) is connected to the dust collection box (13) fixed on the top of the equipment frame (1). The dust collection box (13) is provided with a dust filter plate (39) on the inner side. The connecting pipe (11) is connected to the lower space of the dust filter plate (39). A dust suction fan (12) is installed on the top of the dust collection box (13) and is connected to the upper space of the dust filter plate (39). The drive component is also used to drive the connecting ring (30) to rotate.

7. The low-altitude economic cable shielding layer covering device according to claim 6, characterized in that, An arc-shaped dust isolation plate (8) is fixed between two adjacent dust extraction pipes (9); The dust filter plate (39) is inclined, and a dust removal port (40) is provided on the side wall of the dust collection box (13) corresponding to the lower end of the dust filter plate (39).

8. The low-altitude economic cable shielding layer covering device according to claim 6, characterized in that, The drive assembly includes a motor bracket (3) fixed on the equipment frame (1), a motor (4) fixed on the motor bracket (3), and the output shaft of the motor (4) rotates through the equipment frame (1); The first main pulley (22) and the second main pulley (32) are respectively fixed on the output shaft of the motor (4) on both sides of the equipment frame (1). The outer rotating tube (17) is fixed with a first driven pulley (14), which is connected to the first main pulley (22) via a first transmission belt (23); The connecting ring (30) is fixed with a second pulley (31) on the side away from the dust extraction pipe (9). The second pulley (31) is rotatably connected to the inner fixed pipe (18). The second pulley (31) is connected to the second main pulley (32) through the second transmission belt (5).

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