Cable protection shell

Abstract

The invention relates to a cable protection shell, in particular to a cable protection shell in a high-temperature and heat radiation environment. The upper end of the cylinder body is a plug, the lower end of the cylinder body is a plug tail, the inner diameter of the plug tail is greater than the outer diameter of the plug, the edge of the end part of the plug is provided with a convex clamping head, and the tail part of the plug tail is provided with a clamping groove matched with the convex clamping head; each shell is composed of two semicircular shells or a spherical pipe and a pipe, or the plug is connected with the plug tail through the variable diameter of the barrel body, the matched ends of the shells are connected in an inserted mode, movable gaps are formed in the inserted connection positions, a high-temperature-resistant and wear-resistant coating is arranged on the outer layer of each shell, and the outer layer of each shell is provided with a high-temperature-resistant and wear-resistant coating. The cable and the metal gas hose can be protected from high-temperature damage, metal plate crusting accumulation is reduced, the weight of the cable and a protective layer is reduced, the protective layer can be conveniently and rapidly mounted and dismounted, and the service life of the cable and the metal gas hose is prolonged.

Description

Technical Field

[0001] The invention relates to a cable protection shell, in particular to a cable protection shell in a high temperature and heat radiation environment. Background Art

[0002] In the process of producing and transporting high-temperature molten metal liquids, existing metal smelting enterprises mostly use rail locomotive trailers, rail electric flat cars and trackless electric flat cars for ground heavy-duty transportation equipment, mainly including torpedo tank cars, molten iron tank cars, ladle cars, slag cars, etc. For medium and short-distance heavy-duty high-temperature molten metal liquid transportation equipment, due to the constraints of the production environment and the requirements of power supply stability, continuity and high power, rail electric flat cars in the form of cable reels or cable trailers are mostly used. The power supply method uses cable reels or cable trailers to be fixed outside the high-temperature molten metal liquid production environment. The power cable is connected to the cable input port of the electric flat car through the cable reel or the cable trailer sliding travel form, and is connected to the electric control box in the body of the electric flat car. The electric control box controls the driving motor reducer to make the electric flat car move along the track direction. Some special production process requirements require the provision of inert gas to the high-temperature molten metal liquid container loaded on the electric flat car. A metal gas hose in the form of a cable reel is required to be connected to the electric flat car to carry the high-temperature molten metal liquid container into or out of the high-temperature molten metal liquid production environment.

[0003] During the production and loading process, when the high-temperature molten metal liquid is injected into the high-temperature molten metal liquid container, the high-temperature molten metal liquid is easy to touch the container mouth and produce the high-temperature molten metal liquid splashing phenomenon. The splashing high-temperature molten metal liquid directly splashes onto the surface of the electric flat car and the metal gas hose and power cable close to the car body, causing the metal surface of the metal gas hose to become hardened and the cable to burn. The cable surface protection in the prior art mostly adopts high-temperature resistant fireproof casing or high-temperature resistant asbestos cloth with low skin irritation and other materials. The high-temperature resistant fireproof casing adopts an outer layer of silicone and an inner layer of glass fiber structure, which is suitable for offline cable insertion and then restoring the cable to a working state. When the high-temperature resistant fireproof casing is burned or severely worn during actual use and it is not possible to shut down online to replace a new high-temperature resistant fireproof casing, the new high-temperature resistant fireproof casing needs to be planed open and then wrapped and tied to the working cable at multiple points. At this time, the flying glass fiber seriously irritates the skin and is time-consuming and troublesome. During use, high-temperature resistant asbestos cloth with low skin irritation needs to be repeatedly wrapped and tied at multiple points, which is time-consuming and troublesome. The rough surface of the asbestos cloth can easily cause splashing liquid to stick and accumulate to form metal plate crusts. The accumulated weight of the metal plate crusts and the weight of the asbestos cloth itself accelerate the wear of the cable. When the protective layer of the asbestos cloth is loose or damaged or the plate crust is broken, the cable sheath is exposed and damaged, causing a fault inside the cable core. Because the metal plate crust is too heavy and hard and the asbestos cloth is wrapped and tied, it is time-consuming and laborious to remove the protective layer of the asbestos cloth, which prolongs the fault handling time. The metal plate crust accelerates the damage of the metal gas hose, shortens its service life, and affects product quality. Summary of the invention

[0004] The purpose of the present invention is to provide a cable protective shell to protect cables and metal gas hoses from high temperature damage, reduce metal plate crust accumulation, reduce the weight of cables and protective layers, facilitate rapid installation and removal of protective layers, and increase the service life of cables and metal gas hoses.

[0005] The technical solution of the present invention is: a cable protective shell, comprising a shell, the shell is cylindrical, the upper end of the shell is a plug, the lower end of the shell is a plug tail, the edge of the plug end is provided with an outward convex clamping head, the end of the plug tail is provided with a clamping groove matching the outward convex clamping head, and the inner diameter of the plug tail is larger than the outer diameter of the plug.

[0006] The shell body is composed of two semicircular shells. A hook is provided on one axial side of the cylinder body of the semicircular shell, and a hook groove matching the hook is provided on the other side. The hook and the hook groove are engaged and connected. The two semicircular shells are fixedly connected by screws arranged on the connecting surface.

[0007] The plug is connected with the plug tail through a diameter change of the barrel body, the inner diameter of the plug tail is larger than the outer diameter of the plug, and the whole is a bamboo barrel-shaped shell.

[0008] Another technical solution for a cable protective shell is a shell, which is composed of a spherical tube and a pipe joint. The spherical tube is a hollow sphere, and two plugs connected to the sphere are provided on the hollow sphere. The two plugs are coaxial straight tubes, and the end edges of the two plugs are respectively provided with convex clamps. Both ends of the pipe joint are respectively provided with plug tails, and the plug tails are provided with card grooves. The plug is inserted into the plug tail, embedded in the card groove through the convex clamp head and rotated to clamp.

[0009] There are multiple shells, and the matching ends of the shells are plugged in, and a movable gap is arranged at the plugging position.

[0010] The outer layer of the shell is provided with a high temperature resistant and wear resistant coating, and the material of the high temperature resistant and wear resistant coating is silicon dioxide or aluminum oxide.

[0011] The beneficial effects of the cable protective shell of the present invention are: 1. It can protect cables and metal gas hoses from high-temperature damage: when the power supply cable and metal gas hose with the high-temperature and wear-resistant cable protective shell move with the flat car into the high-temperature molten metal liquid working environment, the splashing high-temperature liquid splashes onto the surface of the arc-shaped protective shell. Through the rebound force of the smooth high-temperature and wear-resistant surface, most of the high-temperature liquid will break away from the protective shell and fall to the ground. Even if a very small amount of high-temperature liquid adheres to the surface of the shell, the internal metal gas hose and cable are protected from high-temperature damage because the surface material of the shell is flame retardant and the inner layer of the shell is flame retardant and high-temperature isolated.

[0012] 2. The cable protective shell of the present invention can quickly reduce metal plate crust: the accumulation of metal plate crust accelerates the damage of the metal gas hose, resulting in a shortened service life. When a large amount of metal plate crust is accumulated and splashed, the protective shell can be broken into pieces to remove the protective shell at the accumulation position of the plate crust because the protective shell is thin, hard and brittle, and the remaining good protective shell can be reinserted and connected. Since the metal plate crust is conveniently removed, the weight of the protective shell is reduced and the service life of the metal gas hose is increased.

[0013] 3. The cable protective shell of the present invention can be quickly installed and disassembled: when an internal cable fails and needs to be checked, the cable protective shell can be rotated in the opposite direction to detach from the suspected fault point, and the cable protective shell can be reinserted after the fault is handled. When a small part of the upper surface of the cable protective shell at a certain section is damaged, the cable protective shell can be withdrawn, flipped 180 degrees, and then reinserted for connection and use, which is convenient and quick.

[0014] 4. The cable protective shell of the present invention can improve the processing speed when processing cable faults online and shorten the repair time of cable faults: if it is time-consuming and troublesome to disassemble the metal gas hose and working cable of the electric flat car, which affects the production process time, and it is not easy to supplement the bamboo tube shell and the spherical tube and pipe joint combined shell, the protective shell that is missing the corresponding length can be supplemented by a semi-circular shell combined shell and connected to the remaining protective shell on the metal gas hose and cable working online, which is convenient and quick. For another example, when the cable at a certain position is damaged and needs to be cut off and repaired, the outer diameter of the cable increases after the repair and the length of the metal gas hose cannot meet the walking length of the medium-distance electric flat car, and multiple metal gas hoses need to be connected in series, the cable repair position and the metal gas hose serial joint position are marked with a spherical tube and pipe joint combined shell to serve as a symbolic reminder for the next maintenance task. It is also suitable for the thermal insulation protection of metal gas hoses and metal hydraulic hoses and other components working in other high-temperature molten metal liquid production environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a semicircular shell combination shell of a cable protection shell of the present invention.

[0016] Figure 2 yes Figure 1 Schematic diagram of the plug end structure.

[0017] Figure 3 yes Figure 1 Schematic diagram of the semicircular shell structure.

[0018] Figure 4 It is a schematic diagram of the semicircular shell clamping structure.

[0019] Figure 5 It is a schematic diagram of the bamboo tube-shaped shell structure.

[0020] Figure 6 It is a schematic diagram of a spherical tube and a tube-jointed combined shell.

[0021] Figure 7 yes Figure 6 Schematic diagram of the spherical tube structure.

[0022] Figure 8 yes Figure 6 Schematic diagram of the middle pipe connection structure.

[0023] In the figure: 1 plug, 2 plug tail, 3 convex clamp, 4 slot, 5 hook, 6 hook slot, 7 screw, 8 barrel, 9 high temperature and wear resistant coating, 10 outer diameter of plug, 11 inner diameter of plug tail, 12 spherical tube, 13 pipe connection. DETAILED DESCRIPTION

[0024] The present invention discloses a cable protective shell, which is mainly used to protect cables from high temperature radiation, high temperature liquid damage and cable surface wear, and is also suitable for the outer layer protection of working cables and metal gas hoses and metal hydraulic hoses in a high temperature molten metal liquid production environment.

[0025] Example 1

[0026] A cable protective shell, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, it has a shell, which is cylindrical, specifically a semicircular shell combined shell, the upper end of the cylinder body 8 is a plug 1, the lower end of the cylinder body 8 is a plug tail 2, the edge of the end of the plug 1 is provided with an external convex clamp head 3, the end of the plug tail 2 is provided with a clamping groove 4 matching the external convex clamp head 3, the inner diameter 11 of the plug tail is larger than the outer diameter 10 of the plug, and the outer layer of the shell is provided with a high temperature resistant and wear-resistant coating 9. The shell is composed of two semicircular shells, and its appearance is like half of a bamboo tube. The barrel 8 of the semicircular shell is provided with a hook 5 on one axial side and a hook groove 6 matching the hook on the other side. When one semicircular shell is flipped 180 degrees and the hook and hook groove positions correspond to those of the other semicircular shell, the hook is inserted into the hook groove from the plug-in tail end and pushed forward until the two semicircular shells are combined into a complete semicircular shell combination shell. After the end-to-end alignment of the double semicircular shell joining lines, the hook and the hook groove positions are locked by an external screw 7. The combined cylindrical shell can be used in series in multiple sections, and can also be used in series with a spherical tube and tube joint combined shell and a bamboo tube shell. It is suitable for supplementing and protecting cables and metal hoses in online working states.

[0027] Example 2

[0028] A cable protective shell, such as Figure 5 As shown, it has a shell, specifically a bamboo-shaped shell, the upper end of the barrel 8 is a plug 1, the lower end of the barrel 8 is a plug tail 2, the end face edge of the plug 1 is provided with a convex clamp 3, the end face edge of the plug tail 2 is provided with a slot 4 matching the convex clamp 3, and the outer layer of the shell is provided with a high temperature and wear-resistant coating 9. The plug 1 is connected to the plug tail 2 through the barrel diameter change, and the inner diameter 11 of the plug tail is larger than the outer diameter 10 of the plug. When multiple sections are used in series, the convex clamp 3 on the plug 1 is inserted into the slot 4 of the plug tail 2 and then rotated and pulled down. It can also be used in series with a spherical tube and a pipe joint combined shell, which is suitable for the use of first inserting a metal gas hose and a cable offline and then connecting to the working state.

[0029] Example 3

[0030] A cable protective shell, such as Figure 6 , Figure 7 , Figure 8As shown, there is a shell, specifically a spherical tube and pipe joint combined shell, and the outer layer of the shell is provided with a high temperature resistant and wear-resistant coating 9. The shell is composed of a spherical tube 12 and a pipe joint 13. The spherical tube 12 has plugs 1 at both ends, and the edges are respectively provided with convex clamps 3. The pipe joint 13 has plug tails 2 at both ends, and is respectively provided with card slots 4. The inner diameter 11 of the plug tails at both ends of the pipe joint is larger than the outer diameter 10 of the plugs at both ends of the spherical tube. One end of the spherical tube 12 is plugged into the pipe joint 13, and the convex clamp 3 enters the card slot 4 and is connected by rotation. This spherical tube and pipe joint combined shell can be used in series with multiple sections, and can also be used in series with a semicircular shell combined shell and a bamboo tube shell. This spherical tube and pipe joint combined shell is suitable for the use of first inserting a metal gas hose and a cable offline and then connecting to the working state after completion.

[0031] Example 4

[0032] The cable protection shell can be used in combination with shells of multiple structural shapes according to the working conditions. When the shells described in Examples 1, 2, and 3 are used in series in multiple sections, the ends of the shells are matched and plugged in, and a movable gap is provided at the plug-in point so that the connection position has a certain amount of movable bending angle. The metal gas hose and cable are placed in the shell for work, and have a certain bending arc working range, which is convenient for the cable reel to be retracted and released.

[0033] The high temperature and wear resistant coating of the present invention is made of silicon dioxide or aluminum oxide. The shell of the cable protective shell of the present invention can be made of lightweight refractory materials such as clay, high aluminum, and silicon, and is made by molding high temperature setting or aluminum silicate refractory fiber combined with aluminum silicate adhesive material through molding room temperature setting process, with a temperature resistance of more than 1000°C. The surface of the molded cable protective shell is rough and has no finish, and it is easy to adhere to and accumulate splashed high temperature molten metal liquid. The silicon dioxide coating or aluminum oxide coating has high hardness and high finish and is resistant to temperatures above 1450°C, which enhances the surface finish and high temperature and wear resistance of the cable protective shell, and effectively reduces the adhesion and accumulation of high temperature molten metal liquid.

Claims

1. A cable protective shell, characterized in that: The housing is cylindrical, the upper end of the cylinder body (8) is a plug (1), the lower end of the cylinder body (8) is a plug tail (2), the end edge of the plug (1) is provided with an external convex clamping head (3), the end of the plug tail (2) is provided with a clamping groove (4) matching the external convex clamping head (3), and the inner diameter (11) of the plug tail is larger than the outer diameter (10) of the plug.

2. A cable protective shell according to claim 1, characterized in that: The shell body is composed of two semicircular shells. A hook (5) is provided on one axial side of the cylinder body (8) of the semicircular shell, and a hook groove (6) matching the hook is provided on the other side. The hook (5) and the hook groove (6) are engaged and connected. The two semicircular shells are fixedly connected by screws (7) provided on the connecting surface.

3. A cable protective shell according to claim 1, characterized in that: The plug (1) is connected to the plug tail (2) through a diameter change of the barrel body, the inner diameter (11) of the plug tail is larger than the outer diameter (10) of the plug, and the whole is a bamboo barrel-shaped shell.

4. A cable protective shell, characterized in that: The invention has a shell, wherein the shell is composed of a spherical tube (12) and a pipe joint (13); the spherical tube (12) is a hollow sphere, and two plugs (1) connected to the sphere are arranged on the hollow sphere; the two plugs (1) are coaxial straight tubes, and the end edges of the two plugs (1) are respectively provided with external convex clamping heads (3); the two ends of the pipe joint (13) are respectively provided with plug tails (2), and the plug tails are provided with a clamping groove (4); the plug (1) is plugged into the plug tail (2) and is rotatably clamped with the clamping groove (4) through the external convex clamping head (3).

5. A cable protective shell according to claim 1, 2, 3 or 4, characterized in that: There are multiple shells, and the matching ends of the shells are plugged in, and a movable gap is arranged at the plugging position.

6. A cable protective shell according to claim 1, 2, 3 or 4, characterized in that: The outer layer of the shell is provided with a high temperature resistant and wear resistant coating (9), and the material of the high temperature resistant and wear resistant coating is silicon dioxide or aluminum oxide.

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