CN203405582U - Multi-core cable overlap return wire - Google Patents

Abstract

The utility model discloses a multi-core cable overlap return wire comprising a cable (1) and a mining cable connector plug (2); the cable (1) comprises a first cable core (1.1) and a second cable core (1.2) which are arranged at two ends of the cable, and the mining cable connector plug (2) comprises a first plug core (2.1) and a second plug core (2.2); and the first cable core (1.1) is fixedly connected to the first plug core (2.1) to form an emission return wire together with a first socket core (3.1) of a transient electromagnetic instrument (3), and the second cable core (1.2) is fixedly connected to the second plug core (2.2) to form a reception return wire together with a second socket core (3.2) of the transient electromagnetic instrument (3). A coal mining mobile light-duty rubber flexible cable according with the standard of a coal mining cable is adopted, flexibility is good and winding is easy; and by coating a rubber insulation sheath, the multi-core cable overlap return wire has wear resistance, good insulating property and high mechanical strength, and is suitable for using in severe environments such as pits.

Description

The overlapping loop line of polycore cable formula

Technical field

The utility model relates to the overlapping loop line of a kind of polycore cable formula, and specifically overlapping loop line is launched, received to a kind of polycore cable formula for mine transient electromagnetic instrument.

Background technology

Along with the application of Transient Electromagnetic Apparatus in mine, due to down-hole narrow space, circumstance complication, now that receiver and transmitter is integrated at present, and employing is launched, is received overlapping loop line as supporting coil.

The transmitting of mine transient electromagnetic instrument now, the most RV wire-wound systems that adopt of receiving coil form, RV line full name copper core polyvinyl chloride insulation connects cord, be generally used for various low voltage electrical equipments, adopt multiply soft copper silk, conductor bending radius is less, be applicable to turning to multiturn, but use RV line coiling mainly to have the defect of following several respects:

1. RV line is generally used for surface structures wiring, does not belong to Coal Electricity cable electric wire, does not obtain mine safety Taken authentication, does not allow to use in down-hole;

2. mine transient electromagnetic instrument transmitting, receiving coil area are generally 1.6m * 1.6m, the number of turn is greater than 70 circles conventionally, be that total length is greater than 450 meters, and RV line is on the market mostly 100 meters/volume, during coiling, need carry out repeatedly head and the tail and weld and take insulation measures, coiling inefficiency and make coil integral insulation hydraulic performance decline;

3. in the winding process of RV coil, conventionally use the manual bag of electrical adhesive tape wire bushing, when affecting outward appearance, also can inevitably cause turn-to-turn malalignment, the phenomenon such as cause different in size, and this will cause transmitting and receive the unstable of signal, affect measurement result;

4. because RV line is individual layer polyvinyl chloride insulation, in the severe service condition in down-hole, be very easy to wearing and tearing, coil is shorter serviceable life, and serious also can cause short trouble;

5. aspect being connected of coil and Transient Electromagnetic Apparatus, because the connecting line of transmitting, receiving coil is all two RV lines, out-of-shape, electric wire physical strength is low, in connector place insulation fixing being difficult for, processes, and is subject to external force and tears.

Summary of the invention

For the problems referred to above, the utility model provides a kind of polycore cable formula overlapping loop line, meet Coal Electricity cable standard, coil physical strength is high, good insulation preformance, coiling efficiency is high, safe and reliable, and long service life, when guaranteeing that collection signal is stable loop line outward appearance succinct, be easy to arrange, be adapted at using under the rugged surroundings of down-hole.

For achieving the above object, the utility model comprises cable and mine cable connector plug, cable comprises cable core one and cable core two, lay respectively at cable two ends, mine cable connector plug comprises plug core one and plug core two, cable core one is fixedly connected with plug core one, forms transmitting loop with the socket core one of Transient Electromagnetic Apparatus; Cable core two is fixedly connected with plug core two, forms reception loop line with the socket core two of Transient Electromagnetic Apparatus.

Further, cable adopts rated voltage 0.3/0.5kV mobile light type cabtyre flexible cable for coal mines.

Further, cable has two cores at least.

Compared with prior art, the utility model adopts mobile light type cabtyre flexible cable for coal mines, has mine safety Taken authentication, meets Coal Electricity cable standard; Cable core in Plastic-sheathed Cable is to be conductor by multiply thin copper wire, and flexibility is good, is easy to coiling, and outpacking rubber insulating sheath is wear-resistant, good insulation preformance, and physical strength is high, and long service life is applicable to using in the rugged surroundings of down-hole; Transmitting loop is combined into same cable with receiving loop line, and turn-to-turn marshalling, has special connector supporting with it.

Accompanying drawing explanation

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

In figure: 1, cable, 1.1, cable core one, 1.2, cable core two, 2, mine cable connector plug, 2.1, plug core one, 2.2, plug core two, 3, Transient Electromagnetic Apparatus, 3.1, socket core one, 3.2, socket core two.

Embodiment

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

As shown in Figure 1, the utility model comprises cable 1 and mine cable connector plug 2.

Cable 1 comprises cable core 1 and cable core 2 1.2, lays respectively at cable two ends.

Mine cable connector plug 2 comprises plug core 1 and plug core 2 2.2, and cable core 1 is fixedly connected with plug core 1, forms transmitting loop with the socket core 1 of Transient Electromagnetic Apparatus 3; Cable core 2 1.2 is fixedly connected with plug core 2 2.2, forms reception loop line with the socket core 2 3.2 of Transient Electromagnetic Apparatus 3.

Further, cable 1 adopts rated voltage 0.3/0.5kV mobile light type cabtyre flexible cable for coal mines.

Further, cable 1 has two cores at least.

During use, the socket that mine cable connector plug 2 is connected to Transient Electromagnetic Apparatus 3 can be realized cable core 1 and form transmitting loop with the socket core 1 of Transient Electromagnetic Apparatus 3, and cable core 2 1.2 receives loop line with socket core 2 3.2 formations of Transient Electromagnetic Apparatus 3; As need, measure turning upside down of curve polarity, only need to adjust the order of two plugs of cable connector, need not adjust again whole coil.

The overlapping loop line of this polycore cable formula adopts mobile light type cabtyre flexible cable for coal mines, meets Coal Electricity cable standard; Cable core in Plastic-sheathed Cable is to be conductor by multiply thin copper wire, and flexibility is good, is easy to coiling, and outpacking rubber insulating sheath is wear-resistant, good insulation preformance, and physical strength is high, and long service life is applicable to using in the rugged surroundings of down-hole; Transmitting loop is combined into same cable with receiving loop line, and turn-to-turn marshalling, has special connector supporting with it.

Claims (3)

1. the overlapping loop line of polycore cable formula, is characterized in that, comprises cable (1) and mine cable connector plug (2), and cable (1) comprises cable core one (1.1) and cable core two (1.2), lays respectively at cable two ends; Mine cable connector plug (2) comprises plug core one (2.1) and plug core two (2.2), and cable core one (1.1) is fixedly connected with plug core one (2.1), forms transmitting loop with the socket core one (3.1) of Transient Electromagnetic Apparatus (3); Cable core two (1.2) is fixedly connected with plug core two (2.2), forms reception loop line with the socket core two (3.2) of Transient Electromagnetic Apparatus (3).

2. the overlapping loop line of polycore cable formula according to claim 1, is characterized in that, described cable (1) adopts rated voltage 0.3/0.5kV mobile light type cabtyre flexible cable for coal mines.

3. the overlapping loop line of polycore cable formula according to claim 1, is characterized in that, described cable (1) has two cores at least.

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