CN213183631U

CN213183631U - Coal cutter control core

Info

Publication number: CN213183631U
Application number: CN202022336333.5U
Authority: CN
Inventors: 王新炎; 李建忠
Original assignee: ZHEJIANG YUANDONG CABLE GROUP CO Ltd
Current assignee: Far Cable Holdings Group Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-05-11
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses a coal cutter control wire core, which comprises a sheath, a reinforcement and a plurality of wire groups, wherein the wire groups are abutted against the reinforcement and comprise reinforcement wire cores and control wires; the control wire consists of a plurality of conductor wires and a reinforcing wire, and the control wire is twisted on the reinforcing wire core; the outer surface of the wire group is provided with a first wrapping layer, talcum powder is coated between the first wrapping layer and the wire group, and a second wrapping protective layer is arranged between the wire group and the protective sleeve. The utility model provides a coal-winning machine control sinle silk can effectively improve control cable life in the coal-winning machine, also can maintain higher electric power performance simultaneously.

Description

Coal cutter control core

Technical Field

The utility model belongs to the technical field of mechanical cable, a coal cutter control core particularly.

Background

The coal mining machine cable is frequently subjected to combined stress action of bending, stretching and mechanical external force impact for a long time, and the control wire core conductor section is far smaller than that of the coal mining machine cable power wire core, so that the control wire core is broken. In order to prolong the service life of the control cable, under the condition of keeping the existing structure of the rubber jacketed flexible cable of the coal mining machine basically unchanged, the bending stress borne by the control cable core needs to be reduced, and the flexibility, the tensile strength, the relative slippage and the bending resistance of the control cable core are increased.

Increasing the bending resistance of the control wire core may be achieved by increasing the cross-section and increasing the flexibility of the core, but increasing the cross-sectional area is not feasible due to the outer diameter of the cable, which also increases the power consumption.

SUMMERY OF THE UTILITY MODEL

In order to solve the defect that above-mentioned prior art exists, the utility model provides a coal-winning machine control sinle silk can effectively improve control cable life in the coal-winning machine, also can maintain higher product property ability simultaneously.

The technical scheme of the utility model is realized like this:

a coal cutter control wire core comprises a sheath, a reinforcing piece and a plurality of wire groups abutting against the reinforcing piece, wherein each wire group comprises a reinforcing wire core and a control wire; the control wire consists of a plurality of conductor wires and a reinforcing wire, and the control wire is twisted on the reinforcing wire core; the outer surface of the wire group is provided with a first wrapping layer, talcum powder is coated between the first wrapping layer and the wire group, and a second wrapping protective layer is arranged between the wire group and the protective sleeve.

As an improvement of the utility model, the reinforcing member is an elastic member made of rubber.

As the improvement of the utility model, first around the covering be high temperature resistant slip band.

As an improvement of the utility model, the second is the polyester film around the package inoxidizing coating.

As an improvement of the utility model, the reinforcing wire is formed by twisting a plurality of fiber yarns.

As an improvement of the utility model, the reinforcing wire is formed by twisting a plurality of high-carbon steel wires.

Compared with the prior art, implement the utility model provides a this kind of coal-winning machine control sinle silk has following beneficial effect:

1. the control wire core is composed of a plurality of wire groups, the diameter of a single wire group is reduced on the premise of not increasing the integral sectional area of the control wire core, and the integral flexibility and the stretch-resistant performance of the control wire core are improved.

2. A reinforcing piece is arranged among the plurality of line groups forming the control line core, and the reinforcing piece is a rubber elastic piece with strong flexibility; so coal-winning machine cable is in the use, and control core just easily bends flexible, and the power (tensile force, bending force etc.) of exerting on control core can be cushioned because of the elasticity of reinforcement and the compliance of control core, effectively solves the problem that control core is easy because of the crooked disconnected core.

3. The control line comprises conductor lines and reinforcing lines, wherein the reinforcing lines are fiber yarns or high-carbon steel wires, and the strength of the control line is enhanced.

4. The outer surface coating of single group has the talcum powder to it has high temperature resistant slip tape to wind the package, makes the group can produce certain slip after the atress, makes the timely dispersion of stress, avoids stress concentration in a department and causes the control core fracture.

Drawings

Fig. 1 is a schematic overall structure diagram of a cable of a coal mining machine;

fig. 2 is a schematic structural diagram of a coal cutter control core in fig. 1.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1, a conventional shearer cable is composed of three power cores and one cabled control core 100.

As shown in fig. 2, the coal cutter control core 100 of the present invention includes a sheath 1, a rubber elastic member 2, and a plurality of wire groups 3 abutting against the rubber elastic member 2.

The wire group 3 consists of a reinforced wire core 31 and a plurality of control wires 32; the control wire 32 consists of a plurality of conductor wires and reinforcing wires, and the control wire 32 is twisted on the reinforcing wire core 31; the outer surface of the wire group 3 is wrapped with a high temperature resistant sliding tape 33, talc powder is coated between the high temperature resistant sliding tape 33 and the wire group 3, and a polyester film wrapping layer 34 is arranged between the wire group 3 and the sheath 1.

The conductor wire in the control wire 32 is a copper wire, and the reinforcing wire is formed by twisting a plurality of fiber wires or high-carbon steel wires.

Because the control wire core is composed of a plurality of wire groups 3, the diameter of a single wire group 3 can be reduced on the premise of not increasing the integral sectional area of the control wire core, and the integral flexibility and the tensile resistance of the control wire core are improved.

In addition, the rubber elastic element 2 is arranged in the middle of the plurality of wire groups 3, when the cable is stretched by external force, the rubber elastic element 2 is stressed firstly, and as long as the rubber elastic element 2 is not broken, other wire bodies such as a control wire in the cable cannot be damaged and the normal operation is kept.

The control wire 32 is composed of a conductor wire and a reinforcing wire, wherein the reinforcing wire is a fiber wire or a high carbon steel wire, and the strength of the control wire is enhanced. The tensile strength of the steel wire is generally above 1300 MPa, the stress is about 1200 MPa when the steel wire is elongated by 1 percent, the tensile strength is far greater than that of copper (about 200 MPa), and the elongation of the steel wire is about 3 percent and is smaller than that of a copper wire core (more than 15 percent); the fiber filament material has the advantages of small elongation (about 4-5%), high tensile strength (about 2500MPa), no flame retardation and the like.

Therefore, in practical application, the corresponding control wire core can be selected according to the practical application environment of the cable; the control wire core taking the high-carbon steel wire as the reinforcing wire has higher tensile strength, and the control wire core taking the fiber wire as the reinforcing wire has higher elongation, so that the control wire core is suitable for circuits with tortuous and complex wiring paths.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a coal-winning machine control sinle silk, includes sheath, reinforcement, and with a plurality of groups that the reinforcement leaned on, its characterized in that: the wire group comprises a reinforced wire core and a control wire;

the control wire consists of a plurality of conductor wires and a reinforcing wire, and the control wire is twisted on the reinforcing wire core; the outer surface of the wire group is provided with a first wrapping layer, talcum powder is coated between the first wrapping layer and the wire group, and a second wrapping protective layer is arranged between the wire group and the protective sleeve.

2. A shearer control core according to claim 1, wherein the reinforcement is a rubber elastomer.

3. The shearer control core according to claim 2, wherein the first wrapping layer is a high temperature slip tape.

4. The shearer control core according to claim 3, wherein the second wrapping protection layer is a polyester film.

5. The shearer control core according to claim 4, wherein the reinforcing wire is formed by multiple twisting of a plurality of fiber wires.

6. The shearer control wire core according to claim 4, wherein the reinforcing wire is formed by multi-twisting a plurality of high carbon steel wires.