CN211957237U - Mining tensile fireproof cable - Google Patents

Abstract

The utility model relates to a mine tensile and fireproof cable, comprising: a cable core, the cable core includes a plurality of power cable cores and a plurality of tensile control cable cores, the power cable core includes a power conductor, and the power conductor is covered with an insulating sheath, The tensile control cable core includes a plurality of cores, and each core is covered with an inner insulating layer, a tensile strength layer, and an inner sheath, and the outer sides of the inner sheaths of all the cores are jointly covered with an inner sheath; the outer sheath The outer protective layer sequentially includes a flame retardant layer, an oxygen barrier layer, an outer shielding layer and an outer sheath from the inside to the outside. The utility model integrates the power cable and the control cable into one cable, which avoids the situation that the different cables are entangled during the dragging process and reduces the construction efficiency; the tensile strength layer enhances the overall tensile performance of the cable and prolongs its application. The service life when used in small mining equipment; the cooperation of the inner shielding layer and the outer shielding layer ensures the accuracy of the electrical signal transmission of the tensile control cable core; the fireproof filler and the flame retardant layer make the cable have good fireproof performance.

Description

A kind of mine tensile fireproof cable

technical field

The utility model relates to the technical field of cables, in particular to a mine tensile and fireproof cable.

Background technique

Mining equipment needs to move frequently in the mine, so drag chains are often used to protect the power cables and control cables of large mining equipment. The equipment is moved by directly dragging the cable. In this way, the two cables are often dragged and easily entangled. In addition, the two types of cables have poor tensile properties, resulting in a short service life of the cable when applied to small mining equipment.

SUMMARY OF THE INVENTION

The utility model aims at solving the deficiencies of the prior art, and provides a mine-use tensile and fireproof cable.

The utility model adopts the following technical solutions for realizing the above-mentioned purpose:

A mine tensile strength fireproof cable, comprising:

Cable core, the cable core includes a plurality of power cable cores and a plurality of tensile control cable cores, the power cable core includes a power conductor, the power conductor is covered with an insulating sheath, and the tensile control cable core includes a plurality of wire cores twisted together , each core is covered with an inner insulating layer, a tensile strength layer, and an inner sheath from the inside to the outside. The outer layer sequentially includes an inner shielding layer and a middle sheath, and a fireproof filler is filled between the inner sheath and the inner shielding layer;

The outer sheath is wrapped on the outside of the cable core, and the outer sheath includes a flame retardant layer, an oxygen barrier layer, an outer shielding layer, and an outer sheath sequentially from the inside to the outside.

Further, the power conductor is provided with a single copper core.

Further, the section of the single copper core is fan-shaped.

Further, the insulating layer is extruded from high-density polyethylene.

Further, the tensile strength layer is woven from aramid yarn and tinned soft copper wire after twisting.

Further, the inner shielding layer is made of aluminum foil.

Further, the outer sheath is made of flame retardant tape wrapping.

Further, the outer shielding layer is a copper mesh braided layer.

Further, the outer sheath is a halogen-free low-smoke flame retardant polyolefin sheath.

Further, the number of power cable cores is six, the number of tensile control cable cores is one, and the six power cable cores are spirally arranged around the tensile control cable core.

The beneficial effects of the utility model are as follows: the utility model integrates the power cable and the control cable into one cable, which avoids the situation that the different cables are entangled during the dragging process and reduces the construction efficiency; the tensile strength layer strengthens the overall cable The tensile strength prolongs its service life when applied to small mining equipment; the cooperation of the inner shielding layer and the outer shielding layer ensures the accuracy of the electrical signal transmission of the tensile control cable core; the fireproof filler and the flame retardant layer make the cable have Good fire performance.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the enlarged view of A place in Fig. 1;

In the figure: 1-power cable core; 11-power conductor; 12-insulation sheath; 2-tensile control cable core; 21-wire core; 22-inner insulation layer; 23-tensile strength layer; 24-inner sheath sleeve; 3-inner sheath; 31-inner shielding layer; 32-middle sheath; 33-fireproof filler; 4-outer sheathing; 41-flame retardant layer; 42-oxygen barrier layer; 43-outer shielding layer; 44-outer sheath;

The following will be described in detail with reference to the accompanying drawings in conjunction with the embodiments of the present utility model.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the utility model is further described:

As shown in the figure, a mine tensile fireproof cable, including:

The cable core, the cable core includes a number of power cable cores 1 and a number of tensile control cable cores 2, the power cable core 1 includes a power conductor 11, the power conductor 11 is covered with an insulating sheath 12, and the tensile control cable core 2 includes a twisted A plurality of wire cores 21 together, each wire core 21 is sequentially covered with an inner insulating layer 22, a tensile strength layer 23, an inner sheath 24 from the inside to the outside, and the outer side of the inner sheath 24 of all the wire cores 21 The inner sheath 3 is covered together, and the inner sheath 3 sequentially includes an inner shielding layer 31 and a middle sheath 32 from the inside to the outside, and a fireproof filler 33 is filled between the inner sheath 24 and the inner shielding layer 31;

The outer sheath 4 is wrapped around the outside of the cable core, and the outer sheath 4 includes a flame retardant layer 41 , an oxygen barrier layer 42 , an outer shield layer 43 , and an outer sheath 44 sequentially from the inside to the outside.

Further, the power conductor 11 is provided with a single copper core.

Further, the section of the single copper core is fan-shaped.

Further, the insulating layer 22 is made of high-density polyethylene extruded.

Further, the tensile strength layer 23 is woven from aramid yarn and tinned soft copper wire after twisting.

Further, the inner shielding layer 31 is made of aluminum foil.

Further, the outer sheath 4 is made by wrapping the flame retardant tape.

Further, the outer shielding layer 43 is a copper mesh braided layer.

Further, the outer sheath 44 is a halogen-free low-smoke flame retardant polyolefin sheath.

Further, the number of power cable cores 1 is six, the number of tensile control cable cores 2 is one, and the six power cable cores 1 are spirally arranged around the tensile control cable core 2 .

The utility model integrates the power cable and the control cable into one cable, which avoids the situation that the different cables are entangled during the dragging process and reduces the construction efficiency; the tensile strength layer 23 enhances the overall tensile performance of the cable and prolongs its The service life when applied to small mining equipment; the cooperation of the inner shielding layer 31 and the outer shielding layer 43 ensures the accuracy of the electrical signal transmission of the tensile control cable core 2; the fireproof filler 33 and the flame retardant layer 41 make the cable have good Fire performance.

The present utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above-mentioned methods, as long as various improvements made by the method concept and technical solutions of the present utility model are adopted, or the Those applied to other occasions are all within the protection scope of the present invention.

Claims (10)

1. a mine-use tensile fireproof cable, is characterized in that, comprises: Cable core, the cable core includes a plurality of power cable cores (1) and a plurality of tensile control cable cores (2), the power cable core (1) includes a power conductor (11), and the power conductor (11) is covered with an insulating sheath ( 12), the tensile control cable core (2) includes a plurality of wire cores (21) twisted together, and each wire core (21) is sequentially covered with an inner insulating layer (22), a resistance The tensile reinforcement layer (23), the inner sheath (24), the outer sides of the inner sheaths (24) of all the wire cores (21) are jointly covered with an inner sheath (3), and the inner sheaths (3) are arranged in order from the inside to the outside comprising an inner shielding layer (31) and a middle sheath (32), and a fireproof filler (33) is filled between the inner sheath (24) and the inner shielding layer (31); The outer sheath (4), the outer sheath (4) is wrapped on the outside of the cable core, and the outer sheath (4) sequentially includes a flame retardant layer (41), an oxygen barrier layer (42), an outer shielding layer (41) from the inside to the outside. 43), the outer sheath (44). 2. The mine tensile fireproof cable according to claim 1, characterized in that, the power conductor (11) is provided with a single copper core. 3. The mine tensile fireproof cable according to claim 2, characterized in that the section of the single copper core is fan-shaped. 4. The mine tensile fireproof cable according to claim 1, characterized in that, the insulating layer (22) is made of high-density polyethylene extruded. 5 . The tensile and fireproof cable for mining according to claim 1 , wherein the tensile strength layer ( 23 ) is woven from aramid yarn and tinned soft copper wire after twisting. 6 . 6. The mine tensile fireproof cable according to claim 1, wherein the inner shielding layer (31) is made of aluminum foil. 7. The mine tensile fireproof cable according to claim 1, characterized in that, the outer sheath (4) is made by wrapping a flame retardant tape. 8. The mine tensile fireproof cable according to claim 1, wherein the outer shielding layer (43) is a copper mesh braided layer. 9. The mine tensile fire-resistant cable according to claim 1, characterized in that the outer sheath (44) is a halogen-free low-smoke flame-retardant polyolefin sheath. 10. The mine tensile fireproof cable according to any one of claims 1-9, wherein the number of power cable cores (1) is six, and the number of tensile control cable cores (2) is one , the six power cable cores (1) are spirally arranged around the tensile control cable core (2).

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