CN218849101U - Tensile winding multi-core control cable for ladle car - Google Patents

Abstract

The utility model discloses a tensile winding multi-core control cable for ladle car, which comprises a cable core, an outer reinforcing layer, a sheath and a fire-resistant layer, wherein the outer reinforcing layer, the sheath and the fire-resistant layer are sequentially wrapped outside the cable core; the cable core is including being located outside control line layer and being located inside thread core, the thread core is formed by the transposition of insulation core, and tensile component is filled at the thread core middle part, fills the semi-vulcanization bond line between thread core and the control line layer, insulation core includes the conductor and wraps up in the outside insulating layer of conductor, the outside parcel insulation enhancement layer of insulating layer, the utility model discloses a improve cable self structure, make the cable have long service life, tensile anti coiling, temperature resistant performance, very be fit for the automobile-used environment of ladle.

Description

Tensile winding multi-core control cable for ladle car

Technical Field

The utility model relates to the technical field of cables, especially, relate to a ladle car is with tensile winding multicore control cable.

Background

The ladle car is a special vehicle for conveying molten steel, and the smelted molten steel is conveyed to a casting span for die casting or continuous casting. The buggy ladle cable is mainly applied to power transmission and control occasions such as molten steel, steel slag ladle trolleys and the like in the steel industry, and has harsh use environment. Due to the fact that the operation environment of the buggy ladle is severe, besides the buggy ladle frequently moving, molten steel splashes around the buggy ladle in a high-temperature area for a long time, and special requirements of softness, tensile strength, high temperature resistance and the like are required for the buggy ladle cable. After a traditional cable is generally used for a short period of time, the cable core is broken, the sheath is aged and cracked, the cable sheath is burnt by molten steel, and the like, so that the service life of the cable is short, and the production efficiency of a steel mill is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that ordinary cable can not satisfy buggy ladle service environment among the prior art, and the tensile winding multicore control cable for buggy ladle that provides guarantees the long-time stable power supply of cable, keeps buggy ladle's smooth operation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a ladle car is with tensile winding multicore control cable, includes the cable core and wraps up in the outside outer reinforcing layer of cable core, sheath and flame retardant coating in proper order, the cable core is including being located outside control line layer and being located inside main line core, main line core is formed by the transposition of insulating sinle silk, and main line core middle part is filled the tensile component, fills the semi-vulcanization bond line between main line core and the control line layer.

Furthermore, the insulation core comprises a conductor and an insulation layer wrapping the outer portion of the conductor.

The conductor is formed by twisting a plurality of strands of extra soft copper wires and copper foil wires at a small pitch, so that the tensile property of the conductor is improved. The conductor is a 5 th class extra-soft copper stranded wire, the copper wire is a copper wire with a monofilament diameter of 0.375mm, the conductor is composed of 84 monofilament copper wires and 5 copper foil wires doped in the middle, the diameters of the copper wires and the copper foil wires are both 0.375mm, the twisting pitch ratio of the conductor is 8-10, the twisting direction is a left direction, twisting is carried out in the same direction, and the conductor resistance meets the GB/T3956-2008 regulation.

Preferably, the insulating layer is made of ethylene propylene rubber XJ-30A at 105 ℃ and is white in color. The nominal thickness of the insulating layer is 1.2mm, and the printing is 1-6.

Furthermore, an insulating reinforcing layer is wrapped outside the insulating layer and formed by cross weaving of aramid fibers, and when weaving is carried out, 4 spindles of 4 pieces of 2000D are kept in front and back, and the pitch is 20-30 mm.

Preferably, the central tensile element comprises a pull rope and a rubber buffer layer wrapped outside the pull rope, so that the tensile property of the cable is improved. The stay cord adopts the tensile rope of flexible high strength of diameter 3mm, and outer crowded package rubber buffer layer, crowded package external diameter is 8.9mm.

When the main cable core is cabled, a structure of 0+6 is adopted, the center tensile element is placed at the center, the cabling pitch ratio is 9-10 (controlled by 10 times), and the cabling direction is the right direction.

Furthermore, the outside of the main wire core is extruded by ethylene propylene rubber XJ-30A, the thickness of the extrusion is 2.0mm, and the semi-vulcanized state of the rubber is kept during production to form a semi-vulcanized bonding layer. And carrying out secondary vulcanization when the subsequent sheath is extruded, so that the main wire core and the control wire layer form a whole.

The control wire layers are sequentially arranged by control wires surrounding the semi-vulcanized adhesive layer in sequence, the cabling pitch ratio of the control wire layers is 9-10 (controlled by 10 times), and the cabling direction is rightward. Preferably, the control wire is formed by twisting 48 monofilament copper wire bundles with the diameter of 0.242mm, the pitch ratio is 8-10, and the twisting direction is in the left direction. The control reinforcing layer is wrapped outside the control line and is formed by cross weaving of aramid fiber yarns, the aramid fiber yarns are woven into 8 spindles/2000D, the front spindle and the back spindle are respectively provided with 4 spindles, the pitch is 50-60mm, the control reinforcing layer and the aramid fiber yarns are cross woven, and all spindles are evenly arranged at intervals.

Preferably, the outer reinforcing layer is woven by Kevlar fibers.

Preferably, the material of the sheath is natural butadiene styrene rubber with fatigue resistance at 105 ℃, the color is black, the average thickness is not less than 3.0mm, and the thickness of the thinnest part of the sheath is not less than 85% of the nominal thickness minus 0.1mm.

Preferably, the fire-resistant layer comprises a woven layer woven by glass fibers and a fire-resistant paint layer coated on the woven layer. The weaving density of the glass fiber is controlled to be 80% -90%, and then special water-based environment-friendly fireproof paint is coated outside the glass fiber weaving layer to form a comprehensive fireproof protective layer, so that the high-temperature damage of molten steel to a cable sheath of a buggy ladle is reduced, the cable can be effectively prevented from burning, and the service life of the cable is prolonged.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the cable improves the integral thermal aging resistance of the cable by using 105 ℃ insulation and 105 ℃ sheath thermal aging resistance materials;

2. the cable is arranged in the conductor and is twisted by combining copper wires with copper foil wires, so that the tensile property of the conductor can be improved;

3. the cable is provided with the insulation reinforcing layer, the semi-vulcanized bonding layer, the control reinforcing layer and the outer reinforcing layer, so that cable cores are connected into a whole, can be stressed together during deformation, has stronger tensile property and prolongs the service life of the cable;

4. the cable takes the natural butadiene styrene rubber sheath layer and the fire-resistant layer as the outer protective layer, so that the fatigue resistance and the fire resistance of the cable during bending are ensured.

The utility model discloses an improve cable self structure, make the cable have long service life, tensile anti coiling, temperature resistant performance, very be fit for the automobile-used environment of ladle.

Drawings

Fig. 1 is a schematic structural view of the tensile winding multi-core control cable for the ladle car.

In the figure: 1. an insulated wire core; 2. a tensile element; 3. a semi-vulcanized adhesive layer; 4. a control line layer; 5. a reinforcing layer is added; 6. a sheath; 7. a refractory layer; 11. a conductor; 12. an insulating layer; 13. an insulating reinforcing layer; 41. a control line; 42. the reinforcing layer is controlled.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1, the tensile winding multi-core control cable for the ladle car comprises a cable core, an outer reinforcing layer 5, a sheath 6 and a fire-resistant layer 7, wherein the outer reinforcing layer 5, the sheath 6 and the fire-resistant layer 7 are sequentially wrapped outside the cable core, the cable core comprises a control wire layer 4 and a main wire core, the control wire layer is located outside the cable core, the main wire core is formed by stranding insulating wire cores 1, tensile elements 2 are filled in the middle of the main wire core, and a semi-vulcanized bonding layer 3 is filled between the main wire core and the control wire layer 4.

Further, the insulated wire core 1 comprises a conductor 11 and an insulating layer 12 wrapping the conductor 11.

The conductor 11 is formed by twisting a plurality of strands of extra soft copper wires and copper foil wires at a small pitch, so that the tensile property of the conductor is improved. The conductor 11 is a category 5 extra-soft copper stranded wire, the copper wire is a copper wire with a monofilament diameter of 0.375mm, the conductor 11 is composed of 84 monofilament copper wires and 5 copper foil wires doped in the middle, the diameters of the copper wires and the copper foil wires are both 0.375mm, the stranding pitch ratio of the conductor 11 is 8-10, the stranding direction is the left direction, the conductor is stranded in the same direction, and the conductor resistance accords with the GB/T3956-2008 regulation.

In this embodiment, the insulating layer 12 is made of ethylene propylene rubber XJ-30A at 105 ℃ and is white in color. The nominal thickness of the insulating layer 12 is 1.2mm, printing 1-6.

Furthermore, an insulating reinforcing layer 13 wraps the outside of the insulating layer 12, the insulating reinforcing layer 13 is formed by cross weaving of aramid fibers, and 4 spindles and 4 yarns are kept in front and back for 4D and are cross woven with a pitch of 20-30mm during weaving.

In this embodiment, central tensile element 2 includes the stay cord and wraps up in the outside rubber buffer layer of stay cord, improves the tensile property of cable. The stay cord adopts the tensile rope of flexible high strength of diameter 3mm, and outer crowded package rubber buffer layer, crowded package external diameter is 8.9mm.

When the main cable core is cabled, a structure of 0+6 is adopted, the center tensile element 2 is placed at the center, the cabling pitch ratio is 9-10 (controlled by 10 times), and the cabling direction is the right direction.

Furthermore, the outside of the main wire core is extruded by ethylene propylene rubber XJ-30A, the thickness of the extrusion is 2.0mm, and the semi-vulcanized rubber state is kept during production to form a semi-vulcanized adhesive layer 3. And carrying out secondary vulcanization when the subsequent sheath 6 is extruded, so that the main wire core and the control wire layer 4 form a whole.

The control wire layers 4 are sequentially arranged in sequence by control wires 41 wound around the outside of the semi-vulcanized adhesive layer 3, the cabling pitch ratio of the control wire layers 4 is 9-10 (controlled by 10 times), and the cabling direction is rightward. Preferably, the control wire 41 is formed by twisting 48 monofilament copper wire bundles with the diameter of 0.242mm, the pitch ratio is 8-10, and the twisting direction is leftward. The control reinforcing layer 42 is wrapped outside the control line 41, the control reinforcing layer 42 is formed by cross weaving of aramid fiber yarns, the aramid fiber yarns are woven into 8 spindles/2000D, 4 spindles are arranged in a positive mode and a negative mode, the pitch is 50-60mm, the control reinforcing layer is woven in a cross mode, and all spindles are arranged at equal intervals.

In this embodiment, the outer reinforcing layer 5 is woven from kevlar fibers.

In this embodiment, the sheath 6 is made of 105 ℃ fatigue-resistant natural styrene-butadiene rubber, the color is black, the average thickness is not less than 3.0mm, and the thickness of the thinnest part is not less than 85% minus 0.1mm of the nominal thickness.

In this embodiment, the fire-resistant layer 7 includes a woven layer woven by glass fiber and a fire-resistant paint layer coated on the woven layer. The weaving density of the glass fiber is controlled to be 80% -90%, and then special water-based environment-friendly fireproof paint is coated outside the glass fiber weaving layer to form a comprehensive fireproof protective layer, so that the high-temperature damage of molten steel to a cable sheath of a buggy ladle is reduced, the cable can be effectively prevented from burning, and the service life of the cable is prolonged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (8)

1. A tensile winding multi-core control cable for a ladle car is characterized by comprising a cable core, and an outer reinforcing layer (5), a sheath (6) and a fire-resistant layer (7) which are sequentially wrapped outside the cable core; the cable core is including being located outside control line layer (4) and being located inside main line core, main line core is formed by insulating sinle silk (1) transposition, and main line core middle part is filled tensile element (2), fills between main line core and the control line layer (4) and partly vulcanizes bonding layer (3).

2. The ladle car tension-wound multi-core control cable for the ladle car according to claim 1, wherein the insulated wire core (1) comprises a conductor (11) and an insulating layer (12) wrapping the outside of the conductor (11), and an insulating reinforcing layer (13) wraps the outside of the insulating layer (12).

3. The multi-core control cable wound with tension for ladle car according to claim 2, wherein the conductor (11) is formed by twisting copper wire and copper foil.

4. The ladle car tension winding multi-core control cable according to claim 1 or 2, wherein the tension element (2) comprises a pulling rope and a rubber buffer layer wrapped outside the pulling rope.

5. The multi-core control cable for the ladle carriage with the tensile winding according to claim 4, wherein the control wire layers (4) are sequentially arranged in sequence by control wires (41) wound around the outside of the semi-vulcanized adhesive layer (3), and a control reinforcing layer (42) is provided outside each of the control wires (41).

6. The multi-core tensile winding control cable for the ladle car according to claim 2, wherein the insulation reinforcing layer (13) is formed by cross weaving aramid filaments;

the outer reinforcing layer (5) is formed by weaving Kevlar fibers.

7. The multi-core tensile coiled control cable for the ladle car according to claim 6, wherein the material of the sheath (6) is styrene-butadiene rubber.

8. The multi-core control cable wound with tensile strength for the ladle car according to claim 7, wherein the fire-resistant layer (7) comprises a woven layer woven by glass fibers and a fire-resistant paint layer coated on the woven layer.

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