Drag chain type polyethylene insulation power cable

Abstract

The invention relates to the technical field of cables, and provides a drag chain type polyethylene insulated power cable which is installed in a cable drag chain and comprises a cable body, the cable body comprises a conductor, an insulating layer and an outer sheath and further comprises a protection spring, a limiting assembly and an air cooling assembly, and the outer sheath is sleeved with the protection spring; the limiting assembly is used for limiting the cable body in the cable drag chain, the limiting assembly comprises a limiting frame and a limiting plate, the limiting frame is fixedly connected to the interior of the cable drag chain, the cable body is located in the limiting frame, and the limiting plate is connected to the interior of the limiting frame through a compression spring; the air cooling assembly is used for carrying out air cooling on the cable body, the air cooling assembly comprises an air cooling pipe, the air cooling pipe is installed in the cable drag chain, and a plurality of air blowing holes are formed in the air cooling pipe. By means of the technical scheme, the problems that in the prior art, gaps exist in a drag chain, and high temperature and chippings generated by machining can damage a cable are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and more specifically, to a drag-chain polyethylene insulated power cable. Background Art

[0002] A drag-chain cable is a highly flexible special cable that can move back and forth following a drag chain without being easily worn, and is usually also called a drag cable or a tank chain cable. In occasions where equipment units need to move back and forth, in order to prevent cable entanglement, wear, pulling off, hanging, and scattering, the cable is often placed in a cable drag chain to protect the cable, and the cable can also move back and forth with the drag chain.

[0003] Drag-chain cables are mostly used in factory equipment processing, and a lot of equipment processing generates high temperatures and debris. For example, the use of welding machines, machine tool processing, and mining equipment all requires the use of drag-chain cables. High-temperature welding slag generated by welding, impurities and debris generated by machine tool and mining equipment processing, etc. Even if the drag chain is used to protect the cable, due to the gaps in the drag chain, external debris and high temperatures will still affect the cable. High-temperature debris falling into the inside of the drag chain will also cause damage such as burns to the cable. Summary of the Invention

[0004] The present invention provides a drag-chain polyethylene insulated power cable, which solves the problem in the prior art that there are gaps in the drag chain, and the high temperature and debris generated during processing will damage the cable.

[0005] The technical solution of the present invention is as follows: A drag-chain polyethylene insulated power cable is installed inside a cable drag chain and includes a cable body. The cable body includes a conductor, an insulating layer, and an outer sheath. The insulating layer wraps around the outside of the conductor. There are multiple conductors, and the outer sheath is located outside the multiple insulating layers. It further includes: A protective spring sleeved outside the outer sheath; A limiting component for limiting the cable body inside the cable drag chain. The limiting component includes: A limiting frame fixedly connected inside the cable drag chain, and the cable body is located inside the limiting frame; A limiting plate connected to the top side inside the limiting frame through a compression spring for pressing the cable body against the bottom side inside the cable drag chain; An air-cooling component for air-cooling and cooling the cable body. The air-cooling component includes: An air-cooling pipe installed inside the cable drag chain, and multiple blowing holes are opened on the air-cooling pipe.

[0006] In order to adapt to the protection of cable bodies of different lengths, a plurality of protection springs are provided, and two adjacent protection springs are detachably connected through a connecting assembly, and the connecting assembly includes: A connecting plate, wherein two connecting plates are provided, and the two connecting plates are fixedly connected to the two ends of the protective spring, and a magnet 1 for magnetically connecting the two groups of the protective springs is fixedly connected to the connecting plate.

[0007] To facilitate the disassembly and assembly of the cable body, one end of the limit plate close to the compression spring is connected to a pull plate via a pull rope.

[0008] In order to reduce the influence of the pull plate on the movement of the cable drag chain, the pull plate is fixedly connected to one end of the cable drag chain close to a second magnet, a limiting groove is provided on the cable drag chain, a fixing plate is fixedly connected inside the limiting groove, the fixing plate is in contact with the second magnet, and the fixing plate is made of iron metal.

[0009] In order to improve the cooling effect of the cable body, an auxiliary cooling component is also included, and the auxiliary cooling component is used to assist in cooling the air in the air cooling pipe. The auxiliary cooling component includes: A cold water bin is provided with cold water inside, the air cooling pipe is connected with an air supply pipe, the air supply pipe is spirally arranged inside the cold water bin, and a plurality of heat sinks are fixedly connected to the outside of the cold water bin.

[0010] In order to further improve the cooling effect of the cable body, a stirring mechanism is also included, and the stirring mechanism is used to stir the cold water in the cold water tank. The stirring mechanism includes: A driving rod, the driving rod being fixedly connected to the moving end of the cable drag chain; A stirring rod is rotatably connected to the interior of the cold water bin, and the stirring rod is transmission-connected to the driving rod.

[0011] The working principle and beneficial effects of the present invention are: 1. In the present invention, the cable body is initially protected by the cable drag chain, and the cable body is further and more comprehensively protected by the protective spring. The protective spring is made of metal and wraps the outside of the cable body to reduce the high-temperature debris falling on the surface of the cable body and causing burns and damage to the cable body.

[0012] 2. In the present invention, the cable body is limited by a limiting frame and a limiting plate, and the limiting plate limits the cable body to the lower side of the cable drag chain, which increases the bending radius of the cable body to a certain extent and reduces the bending damage of the cable body. At the same time, the limiting frame reduces the entanglement friction between the cable bodies, thereby protecting the cable body.

[0013] 3. In the present invention, cold air is blown into the inside of the cable drag chain through a cold air duct. While cooling the cable body by air cooling, the debris inside the cable drag chain is blown out, reducing scratches and other damages to the cable body caused by debris residue, and facilitating the movement of the cable body relative to the cable drag chain.

[0014] 4. In the present invention, the cold air in the cold air duct is cooled by the cold water in the cold water tank. At the same time, the movement of the cable drag chain drives the driving rod to move, thereby driving the stirring rod to stir the cold water in the cold water tank, and the cold water in the cold water tank is dissipated through the heat sink, ensuring the low-temperature environment of the cold water, and thus improving the cooling effect on the cable body.

[0015] 5. Therefore, compared with the drag-chain cable in the prior art, the present invention further comprehensively protects the outside of the cable body through the protective spring, reducing damages and scratches to the cable body caused by high-temperature debris. At the same time, cold air is blown to the cable body through the cold air duct to cool the cable body, and the debris in the cable drag chain is purged, reducing the influence of debris on the movement of the cable body. At the same time, the movement of the cable drag chain stirs the cold water in the cold water tank, improving the contact between air and cold water, and enhancing the cooling effect on the cable body, with relatively high safety of the cable body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0017] Figure 1 is a schematic structural view of the first perspective of the present invention; Figure 2 is a schematic structural view of the second perspective of the present invention; Figure 3 is a schematic structural view of the air-cooling component, auxiliary cooling component and stirring mechanism of the present invention; Figure 4 is a schematic structural view of the protective spring, connection component and cable body of the present invention; Figure 5 is a schematic structural view of the protective spring and connection component of the present invention; Figure 6 is a schematic structural view of the first perspective of the cable drag chain and limiting component of the present invention; Figure 7 is a schematic structural view of the second perspective of the cable drag chain and limiting component of the present invention; Figure 8 is the present invention Figure 1 partial enlarged structural view of part A; Figure 9 is the present invention Figure 2 partial enlarged structural view of part B; Figure 10 For the present invention Figure 4 is a schematic diagram of a partially enlarged structure at position C in the present invention.

[0018] In the figure: 1. Protective spring; 2. Cable drag chain; 101. Conductor; 102. Insulating layer; 103. Outer sheath; 104. Armor layer; 201. Connecting plate; 202. Magnet 1; 301. Limiting frame; 302. Limiting plate; 303. Compression spring; 304. Pulling rope; 305. Pulling plate; 306. Magnet 2; 307. Fixed plate; 401. Air cooling pipe; 501. Cold water storage tank; 502. Air supply pipe; 503. Heat sink; 601. Driving rod; 602. Stirring rod; 603. Driven gear; 604. Driving rack. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0020] As Figures 1 to 10 shown, this embodiment proposes a drag-chain polyethylene-insulated power cable installed inside the cable drag chain 2, including a cable body. The cable body includes a conductor 101, an insulating layer 102, and an outer sheath 103. The insulating layer 102 is wrapped around the outside of the conductor 101. There are multiple conductors 101, and there are also multiple insulating layers 102. The conductors 101 and the insulating layers 102 correspond one by one. The outer sheath 103 is located outside the multiple insulating layers 102. An armor layer 104 is provided inside the sheath. A filler is filled between the armor layer 104 and the insulating layer 102 to ensure the roundness of the cable body. It also includes a protective spring 1, a limiting component, and an air-cooling component, namely, a protective spring 1, a limiting component, and an air-cooling component.

[0021] The protective spring 1 is sleeved on the outside of the outer sheath 103. In order to adapt to the protection of cable bodies of different lengths, multiple protective springs 1 are provided. Two adjacent protective springs 1 are detachably connected through a connecting component. The connecting component includes a connecting plate 201. Two connecting plates 201 are provided. The two connecting plates 201 are fixedly connected to the two ends of the protective spring 1. A magnet 202 for magnetically connecting the two groups of protective springs 1 is fixedly connected to the connecting plate 201. The magnets 202 on the two connecting plates 201 at both ends of the protective spring 1 are located on the outside with opposite magnetic poles, and the magnetic poles are marked on the connecting plate 201 so that the connecting plate 2 01 are installed on the outside of the cable body in sequence according to the direction, so that the magnets 202 that are close to each other have special-shaped magnetic poles that attract each other, the connecting plate 201 is annular and slides with the outer sheath 103, and the protective spring 1 is slidably mounted on the outside of the cable body. The two adjacent protective springs 1 are connected by the mutual attraction of the magnets 202. At the same time, the elasticity of the protective springs 1 can realize the bending of the cable body. The number of protective springs 1 is adjusted according to the length of the cable body to adapt to the length of the cable body. The pitch of the protective spring 1 is small and the line density is large, so the outside of the cable body can be more comprehensively protected.

[0022] The limiting component is used to limit the cable body inside the cable drag chain 2. The limiting component includes a limiting frame 301 and a limiting plate 302. The limiting frame 301 is fixedly connected inside the cable drag chain 2, and the cable body is located inside the limiting frame 301. The limiting plate 302 is connected to the top side inside the limiting frame 301 through a compression spring 303, and is used to press the cable body against the bottom side inside the cable drag chain 2. One end of the limiting plate 302 close to the compression spring 303 is connected with a pull plate 305 through a pull rope 304. The length of the pull rope 304 is adapted to the length of the limiting frame 301, which can avoid hindering the movement of the limiting plate 302 in the limiting frame 301. The cable drag chain 2 is provided with a through hole for the pull rope 304 to pass through. One end of the pull plate 305 close to the cable drag chain 2 is fixedly connected with a second magnet 306. The cable drag chain 2 is provided with a limiting groove, and an fixing plate is fixedly connected inside the limiting groove. The fixing plate 307 contacts the second magnet 306. The material of the fixing plate 307 is iron metal. The second magnet 306 makes the pull plate 305 and the fixing plate 307 stick tightly, avoiding the random movement of the pull plate 305 from hindering the movement of the cable drag chain 2. When installing or disassembling the cable body, pull the pull plate 305, and under the action of the pull rope 304, drive the limiting plate 302 away from the lower part of the cable drag chain 2, and pass the cable body through the gap between the limiting plate 302 and the bottom of the cable drag chain 2. After the cable body is installed, release the pull plate 305, and under the action of the compression spring 303, the limiting plate 302 presses the cable body against the lower position of the limiting frame 301. The stability of the cable body is ensured by the limiting frame 301 and the limiting plate 302. With the cooperation of the second magnet 306 and the fixing plate 307, the pull plate 305 is fixed on the surface of the cable drag chain 2, reducing the movement of the cable body inside it during the movement of the cable drag chain 2, thereby reducing the wear of the cable body. At the same time, when the cable drag chain 2 is bent, the cable body is on the side with a larger bending radius and its bending angle is smaller, thereby reducing the damage of the cable body.

[0023] The air-cooling component is used to cool the cable body by air cooling. The air-cooling component includes an air-cooling pipe 401. The air-cooling pipe 401 is installed inside the cable drag chain 2. A plurality of blowing holes are opened on the air-cooling pipe 401. The air-cooling pipe 401 is communicated with a air supply device such as a blower. The air supply device supplies air into the air-cooling pipe 401, and blows through the blowing holes into the inside of the cable drag chain 2 to cool the cable body. At the same time, it purges the inside of the cable drag chain 2, reducing the high-temperature damage of the cable body, and at the same time blowing out the debris from the inside of the cable drag chain 2, reducing the wear and scalding of the cable body by the debris. The air-cooling pipe 401 is made of elastic soft material, such as rubber material, and can be bent along with the cable drag chain 2.

[0024] In order to improve the cooling effect on the cable body, an auxiliary cooling component is also included, which is used to assist in cooling the air in the air cooling pipe 401. The auxiliary cooling component includes a cold water bin 501, and cold water is contained in the cold water bin 501. The air cooling pipe 401 is connected to an air supply pipe 502. The air supply pipe 502 is spirally arranged in the cold water bin 501 to increase the contact area between the air and the cold water in the air supply pipe 502, thereby improving the cooling effect on the air. A plurality of heat sinks 503 are fixedly connected to the outside of the cold water bin 501. The cold water bin 501 is connected to a faucet, and tap water is passed into the cold water bin 501. The air transported by the air supply equipment enters the air supply pipe 502, and the air in the air supply pipe 502 is cooled by cold water. The cold air enters the air cooling pipe 401 and is blown to the inside of the cable drag chain 2 to cool the cable body.

[0025] In order to further improve the cooling effect of the cable body, a stirring mechanism is also included. The stirring mechanism is used to stir the cold water in the cold water bin 501. The stirring mechanism includes a driving rod 601 and a stirring rod 602. The driving rod 601 is fixedly connected to the moving end of the cable drag chain 2, and the stirring rod 602 is rotatably connected to the inside of the cold water bin 501. The stirring rod 602 and the driving rod 601 are transmission-connected. The top of the driving rod 601 passes through the cold water bin 501 and is fixedly sleeved with a driven gear 603. The end of the driving rod 601 away from the cable drag chain 2 is fixedly connected to a driving rack 604. The driven gear 603 and the driving rack 604 are meshed. When When the equipment drives the end of the cable drag chain 2 to move, the cable drag chain 2 drives the driving rod 601 and the driving rack 604 to move, thereby driving the driven gear 603 and the stirring rod 602 to rotate. The stirring rod 602 stirs the cold water in the cold water bin 501, further enhancing the contact between the cold water and the air in the air supply pipe 502, improving the cooling effect on the air, thereby improving the cooling effect on the cable body. The length of the driving rod 601 and the position of the cold water bin 501 can be adjusted according to actual working conditions, so that when the driving rack 604 moves with the cable drag chain 2, it is in a state of meshing with the driven gear 603 most of the time.

[0026] The working principle or use process of the drag chain polyethylene insulated power cable is as follows: According to the length of the cable drag chain 2, a cable body of appropriate length and a suitable number of protective springs 1 are selected, and the connecting plate 201 and the protective spring 1 are slidably mounted on the outside of the cable body in a specific direction, and the adjacent connecting plates 201 are connected under the action of the magnet 202, so that multiple protective springs 1 are spliced, and the protective springs 1 provide overall protection for the outside of the cable body; When the cable body needs to be installed into the inside of the cable drag chain 2, pull the pull plate 305 to drive the limit plate 302 to rise, pass the cable body through the gap between the limit frame 301 and the limit plate 302, and then release the pull plate 305. Under the action of the compression spring 303, drive the limit plate 302 to descend to press the cable body at the lower position inside the cable drag chain 2. Under the mutual attraction of the second magnet 306 and the fixed plate 307, fix the pull plate 305 on the surface of the cable drag chain 2; During the working process, the cable drag chain 2 moves and bends along with the equipment, and the cable body bends along with the cable drag chain 2. Air is conveyed into the inside of the air supply pipe through the air supply equipment, and tap water is conveyed into the inside of the cold water tank 501 through the water faucet. The tap water cools the air in the air supply pipe. The cold air enters the inside of the air cooling pipe 401 and is blown into the inside of the cable drag chain 2 to air-cool and cool the cable body, and at the same time purges the inside of the cable drag chain 2. During the movement of the cable drag chain 2, it can also drive the drive rod 601 and the drive rack 604 to move, drive the driven gear 603 and the stirring rod 602 to rotate, stir the cold water in the cold water tank 501, and improve the cooling effect on the air in the air supply pipe 502.

[0027] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drag-chain type polyethylene insulated power cable, installed inside a cable drag chain (2), comprising a cable body, the cable body including a conductor (101), an insulating layer (102) and an outer sheath (103), characterized in that, It further includes a protective spring (1), a limiting component and an air-cooling component; The protective spring (1) is sleeved outside the outer sheath (103); The limiting component is used for limiting the cable body inside the cable drag chain (2), and the limiting component includes: A limiting frame (301), the limiting frame (301) is fixedly connected inside the cable drag chain (2), and the cable body is located inside the limiting frame (301); A limiting plate (302), the limiting plate (302) is connected inside the limiting frame (301) through a compression spring (303); The air-cooling component is used for air-cooling and cooling the cable body, and the air-cooling component includes: An air-cooling pipe (401), the air-cooling pipe (401) is installed inside the cable drag chain (2), and a plurality of air-blowing holes are provided on the air-cooling pipe (401).

2. The drag-chain polyethylene insulated power cable according to claim 1, wherein, There are a plurality of the protective springs (1), and adjacent two of the protective springs (1) are detachably connected through a connecting component, and the connecting component includes: Connecting plates (201), there are two connecting plates (201), the two connecting plates (201) are fixedly connected to both ends of the protective spring (1), and a magnet one (202) for magnetically connecting two groups of the protective springs (1) is fixedly connected to the connecting plate (201).

3. The drag-chain type polyethylene insulated power cable according to claim 2, characterized in that, The limiting plate (302) is connected to the top side inside the limiting frame (301) through a compression spring (303) for pressing the cable body against the bottom side inside the cable drag chain (2).

4. The drag-chain polyethylene insulated power cable according to claim 3, characterized in that, One end of the limiting plate (302) close to the compression spring (303) is connected to a pulling plate (305) through a pulling rope (304).

5. The drag-chain polyethylene insulated power cable according to claim 4, characterized in that, One end of the pulling plate (305) close to the cable drag chain (2) is fixedly connected to a magnet two (306), a limiting groove is provided on the cable drag chain (2), a fixing plate (307) is fixedly connected inside the limiting groove, the fixing plate (307) contacts the magnet two (306), and the material of the fixing plate (307) is iron metal.

6. The drag-chain polyethylene insulated power cable according to claim 5, characterized in that, It further includes an auxiliary cooling component, and the auxiliary cooling component is used for auxiliary cooling of the air inside the air-cooling pipe (401), and the auxiliary cooling component includes: A cold water tank (501), cold water is contained inside the cold water tank (501), the air-cooling pipe (401) is communicated with an air supply pipe (502), the air supply pipe (502) is located inside the cold water tank (501), and a plurality of heat dissipation fins (503) are fixedly connected to the outside of the cold water tank (501).

7. The drag-chain type polyethylene insulated power cable according to claim 6, characterized in that, The air supply pipe (502) is spirally arranged inside the cold water tank (501).

8. A drag-chain polyethylene-insulated power cable according to claim 7, characterized in that, It further includes a stirring mechanism, and the stirring mechanism is used for stirring the cold water inside the cold water tank (501), and the stirring mechanism includes: A driving rod (601), the driving rod (601) is fixedly connected to the moving end of the cable drag chain (2); Stirring rod (602), the stirring rod (602) is rotatably connected inside the cold water tank (501), and the stirring rod (602) is in transmission connection with the driving rod (601).

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