CN201758023U - Mining cable - Google Patents

Abstract

The utility model discloses a mining cable, which is composed of a wire core layer (1) and a sheath layer (2) outside the wire core layer (1). Composed of braided tinned copper wire (4) and insulating layer (5), the insulating layer (5) is extruded outside the tinned copper wire (4), and there is a filler layer (3) between the wire core layers (1), The utility model has the advantages of simple structure and low production cost. While increasing the tensile strength of the mine cable, it also improves the welding performance of the wire core, and can be used twice, thereby reducing the use cost of the mine cable.

Description

mine cable

technical field

The utility model relates to a cable, in particular to a mine cable.

Background technique

Mining cables refer to wire and cable products for ground equipment and underground equipment used in the coal mining industry, including cables for communication, lighting and signal equipment on coal shearers and conveyors, as well as electric drill cables, cap lamp wires and underground mobile substations power cables etc. However, the environment in the mine is extremely harsh, and there are frequent collisions and pulls. The traditional mine cables have low tensile strength and short service life, which basically cannot meet the conditions of modern underground operations.

At present, mine cables on the market are very common, such as mine control cables, mine communication cables, mine flame-retardant cables, etc. Although these cables increase the strength of mine cables to a certain extent, the manufacturing cost is expensive and the structure Relatively complicated, once the cable breaks in an emergency, it is difficult to connect and continue to use it again.

Utility model content

The purpose of this utility model is to overcome the shortcomings of the existing mining cables, to provide a high-strength mining cable, which has a simple and reasonable structure, can effectively improve the tensile strength of the mining cable, and improve the welding performance of the core. It can be used twice, thereby reducing the cost of use.

The purpose of this utility model is achieved through the following technical solutions: a mine cable, which is composed of a core layer and a sheath layer outside the core layer. Composed of tinned copper wire and insulating layer, the insulating layer is extruded outside the tinned copper wire, and there is a core layer between the core layers. The use of tinned copper wire and a new braiding method can improve the tensile performance of the copper wire and the copper wire. wire welding properties.

The beneficial effects of the utility model are: the structure is simple and reasonable, the tensile strength of the mine cable is increased, the welding performance of the wire core is improved, the utility model can be used twice, and the use cost is reduced.

Description of drawings

Fig. 1 is the structural representation of the utility model

Fig. 2 is the schematic diagram of the copper wire of prior art

Fig. 3 is the schematic diagram of braiding mode of copper wire of the present utility model

In the figure, 1-core layer, 2-sheath layer, 3-filling core layer, 4-tinned copper wire, 5-insulation layer

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 1, it consists of a core layer 1 and a sheath layer 2 outside the core layer 1. The core layer 1 is composed of a plurality of tinned copper wires 4 braided with each other and an insulating layer 5. The insulating layer 5 is extruded outside the tinned copper wire 4, and there is a core layer 3 between the core layers 1. The use of tinned copper wire 4 can improve the welding performance of the copper wire, thereby ensuring the secondary use performance of the mining cable, as shown in the figure 2. It is the weaving method adopted by the copper wires of most existing mining cables, and the tensile performance is relatively poor. As shown in Figure 3, it is the tinned copper wire of the present utility model. Excellent tensile properties, reducing the cost of mining cables.

Claims (1)

1. mining cable, it is made up of core layer (1) and the outer restrictive coating (2) of core layer (1), it is characterized in that: described core layer (1) is made up of the tinned copper wire (4) and the insulating barrier (5) of many mutual pigtail braidings, insulating barrier (5) is extruded in outside the tinned copper wire (4), fills out sandwich layer (3) between the core layer (1).

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