CN2618265Y - Rubber covered flexible electric cable - Google Patents
Rubber covered flexible electric cable Download PDFInfo
- Publication number
- CN2618265Y CN2618265Y CN 02268535 CN02268535U CN2618265Y CN 2618265 Y CN2618265 Y CN 2618265Y CN 02268535 CN02268535 CN 02268535 CN 02268535 U CN02268535 U CN 02268535U CN 2618265 Y CN2618265 Y CN 2618265Y
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- core
- wire core
- braid
- cable
- conductive wire
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Abstract
The utility model relates to a cabtyre table, in particular to the cabtyre table which is suitable for mobile machinery like an underground shearer, keeps in a continuous dragging, reciprocating and bending condition and is resistant to bending. The utility model mainly comprises a sleeve layer, an insulting layer and a conductive wire core, wherein, the conductive wire core is a whole braided structure comprising a sleeve typed braid ply or a plurality of sleeve typed braid plies from the internal to the external of the conductive wire core; or a lining core only comprises a bit of braids, but the main part of the conductive wire core comprises a sleeve typed braid ply or a plurality of sleeve shaped braid piles. The conductive wire core with a whole structure reduces the stranded pitch of the conductive wire core of the cable and the stranded pitch of the wire core can be reduced by less than six or even four times, which increases the flexibility of the conductive wire core of the cable, the anti-bending performance of the cable and the service life of the cable.
Description
Affiliated technical field
The utility model relates to cable, particularly a kind of be applicable to that mechanically moving such as silo shearer is used, be in and constantly drag and the cyclic bending state is operation down, resistant to bending rubber sleeve flexible cable for a long time.
Background technology
The rubber sleeve flexible cable of prior art, the rubber sheathed flexible cable for mine of using with coal-winning machine is an example, the conductor wire core structure of cable, it all is the multiple twisted wire that adopts traditional multiple strand mode to produce, promptly according to the design of conductor structure, earlier after bunching machine is twisted into the Yin Dynasty with the core bundle, twisted wire on cage winch again.When twisting again for core, requiring the number of share of stock of adjacent two layers to differ is 6, and the twisted wire direction of adjacent two layers is opposite.Generally speaking, no matter be bundle strand or cage strand, the pitch of twisted pair wire is than all not accomplishing less than 10 times.On the other hand, line diameter is more little during twisted wire, and pitch is than more little, and core is soft more.
The environment for use of electric cable for coal mining machine is along with coal excavation apparatus drags use back and forth at the down-hole stope, cable is in always and moves and the operation down of cyclic bending state, the bending radius of cable is hour not enough 280mm, cause the electric cable for coal mining machine conductor wire core often to be fractureed, cause cable to be scrapped, influence the useful life of cable.For present homemade electric cable for coal mining machine, the general less than 2 months in useful life on the AM500 coal-winning machine of down-hole.The loss that causes because of the replacing cable is very big.Influence the flexibility of the main cause in cable useful life at core.
Summary of the invention
For the problem of lacking in the not anti-bending of the rubber sleeve flexible cable conductor wire core that solves prior art, useful life, the utility model provides a kind of rubber sleeve flexible cable, it increases the flexibility of cable conduction core with new conductor wire core version, improves the bending resistance and the useful life of cable.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be:
In the rubber sleeve flexible cable that is made of restrictive coating, insulating barrier and conductor wire core etc., its conductor wire core is the integral weaving structure; That is: done the liner core by the stranded twisted wire of a small amount of single line except the centre, the major part of conductor wire core outwards is made of one or more layers shell-like braid from the lining; Perhaps, conductor wire core outwards is made of one or more layers shell-like braid from the lining, and makes the liner core without twisted wire.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted can also be:
Two-layer or the two-layer above shell-like braid of the general employing of rubber sleeve flexible cable conductor wire core; The long-pending difference that equals braid segment conductor sectional area and the specified sectional area of cable conduction core of the cross-sectional area of conductor of a small amount of single line of liner core.That is: the liner core is to add in order to supply the long-pending difference with the specified sectional area of conductor wire core of braid cross-sectional area of conductor.
As the rubber sleeve flexible cable that coal-winning machine is used, its conductor wire core also comprises monitoring core or control core except leading wire core, and the ground core.The insulating barrier of leading wire core has screen outward.All conductor wire cores all adopt the integral weaving structure.Its restrictive coating should adopt antistatic, fire-retardant rubber restrictive coating.Its leading wire core is generally the shell-like braid more than four layers or four layers.
The beneficial effects of the utility model are:
Adopt the conductor wire core of twisted wire structure, twisted wire pitch ratio is not accomplished less than 10 times.And adopt the conductor wire core of integral weaving structure, and reduced the twisting pitch of conductor wire core, twisting pitch can be accomplished below 6 times even 4 times, thereby improve the flexibility of cable conduction core greatly, the bending resistance and the useful life of improving cable.Although the braiding core manys some man-hours of expense and material than twisted wire, advantage be give prominence to main.
Description of drawings
Fig. 1 is the structural representation axonometric drawing of the utility model integral weaving structural cable conductor wire core
Fig. 2 is the expanded view of braid
Fig. 3 is the schematic cross-sectional view of the rubber sleeve flexible cable used of the utility model coal-winning machine
Among the figure: 1-liner core, 2-braid, 3-insulating barrier, 4-restrictive coating, the leading wire core of 5-, the 6-second third glue insulating barrier, 7-screen, 8-ground core, 9-monitor core, 10-pilot wire core insulation layer.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment 1:
As the universal anti-crooked rubber sleeve flexible cable of the utility model, the general three-core cable that constitutes by rubber restrictive coating, leading wire core, insulating barrier, perhaps by rubber restrictive coating, leading wire core, the quad that constitutes of core, insulating barrier.Its leading wire core and ground core all adopt the integral weaving structure.
Fig. 1 illustrates a kind of integral weaving structure of conductor wire core.Do the liner core (1) by the stranded twisted wire of a small amount of single line except the centre has for conductor wire core, and its major part outwards is made of multi-layer braided layer (2) layer overlaps from the lining.Braid (2) is the shell-like layer, and its number of plies can be one deck to several layers, is illustrated as four layers.
The liner core (1) in conductor wire core centre can not have yet; That is: conductor wire core outwards all is made of braid (2) from the lining.The cross-sectional area of conductor of liner core (1) twisted wire is long-pending, is in order to supply the difference of the long-pending summation of the specified sectional area of conductor wire core and each braid cross-sectional area of conductor.
Fig. 2 illustrates a kind of structure of braid.Braid is exactly several single lines are intersected stranded formation shell-like layer with certain rule.The surface detail of braid resembles mat very much.The difference of weave pattern is decided by the topped braiding pattern between the line thigh.The braiding pattern of line thigh can be various, the most frequently used an is strand from other above two strands through after, and then pass adjacent two strands below.The thickness of braid is the twice of line diameter.Braid claims litzendraht wire again.Screen is exactly a kind of braid.
Embodiment 2:
Fig. 3 shows the structure of the rubber sleeve flexible cable that a kind of coal-winning machine of the utility model uses.Its conductor wire core except leading wire core (5), be the power core, monitor in addition core (9), core (8), they all adopt the integral weaving structure.Outside the leading wire core (5) the second third glue insulating barrier (6) is arranged, woven shield (7) is arranged outside the second third glue insulating barrier (6).Monitor pilot wire core insulation layer (10) is arranged outside the core (9).Its restrictive coating is antistatic, fire-retardant rubber restrictive coating (4), meet requirement of explosion proof under the coal mine.Its leading wire core (5) generally adopts the braid more than four layers or four layers.
With MCPTJ-0.66/1.143 * 95+1 * 50+1 * 50 electric cable for coal mining machine is example.Its power core 95mm
2The core structure be: the core center is a 4mm
2The copper wire twisted wire make the liner core, outside the liner core, weave four layers, every layer is 24 ingots, 8 0.39mm copper wires of every ingot.Ground core and supervision core are 50mm
2Conductor, can adopt 2.5mm
2Stranded conductor is made the liner core, outside the liner core, weaves four layers, and every layer is 24 ingots, 7 0.3mm copper wires of every ingot.Above-mentioned copper wire all is a tinned copper wire.More conductor wire core braiding structure is seen attached list for example.According to the difference of braiding machine, can design the braiding structure of different cable conduction cores.
The coal-winning machine that has also comprises the control core with rubber sheathed flexible cable for mine, is seven core cable.
Processing and manufacturing:
The conductor wire core of integral weaving structure weaves with braiding machine, keeps the total sectional area of conductor wire core constant during braiding, during the layering braiding conductor wire core from nexine to outer pitch than constant, the mode of production adopts the vulcanizer mode to vulcanize.The technological process of production of integral weaving structural cable: wire drawing → annealing → zinc-plated → plying → braiding → wrapped semi-conductive cloth tape → insulating exruded is extruded → product testing around strap → stranding → sheath.
The liner core is made twisted wire in the stranded mode of tradition with a small amount of copper wire.
Subordinate list:
| Specification (mm 2) | Number of spindles | Wire core diameter (mm) | The number of plies | Every ingot radical |
| 16 | 32 | 0.3 | 1 | 7 |
| 25 | 24 | 0.3 | 2 | 7 |
| 35 | 24 | 0.3 | 3 | 7 |
| 50 | 24 | 0.3 | 4 | 7 |
| 70 | 24 | 0.3 | 5 | 8 |
| 95 | 24 | 0.39 | 4 | 8 |
Wherein: sectional area=number of plies * number of spindles * every ingot radical * 3.14/4 * diameter * diameter.
Claims (3)
1. a rubber sleeve flexible cable comprises restrictive coating, insulating barrier and conductor wire core, it is characterized in that: said conductor wire core whole or near being one or more layers shell-like braid (2) that is woven into by its single line all; Near all being meant, except braid (2) part, last part only is a small amount of single line, and the stranded twisted wire of these single lines is positioned at the centre, as liner core (1).
2. rubber sleeve flexible cable according to claim 1 is characterized in that: said shell-like braid (2) has at least two-layer; Said a small amount of single line as liner core (1), its cross-sectional area of conductor is long-pending to equal the difference of the long-pending specified sectional area with the cable conduction core of the cross-sectional area of conductor of braid (2) part.
3. rubber sleeve flexible cable according to claim 1 is characterized in that: said conductor wire core, except leading wire core (5), monitor core (9) or control core in addition, and ground core (8); The insulating barrier of leading wire core (5) has screen (7) outward; Said restrictive coating is antistatic, fire-retardant rubber restrictive coating (4); Leading wire core (5) is at least four layers of shell-like braid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02268535 CN2618265Y (en) | 2002-07-29 | 2002-07-29 | Rubber covered flexible electric cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02268535 CN2618265Y (en) | 2002-07-29 | 2002-07-29 | Rubber covered flexible electric cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2618265Y true CN2618265Y (en) | 2004-05-26 |
Family
ID=34238417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02268535 Expired - Fee Related CN2618265Y (en) | 2002-07-29 | 2002-07-29 | Rubber covered flexible electric cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2618265Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894616A (en) * | 2010-07-21 | 2010-11-24 | 郑州电缆有限公司 | High-temperature resistant anti-corrosive cursor electrode cable |
| CN102290152A (en) * | 2011-08-31 | 2011-12-21 | 泛亚电缆集团有限公司 | Method for manufacturing conductor wire core in super flexible cable |
| CN104282365A (en) * | 2014-05-13 | 2015-01-14 | 山东无棣海丰电缆有限公司 | Warping-resistant and stretching-resistant multi-purpose braided cable |
-
2002
- 2002-07-29 CN CN 02268535 patent/CN2618265Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894616A (en) * | 2010-07-21 | 2010-11-24 | 郑州电缆有限公司 | High-temperature resistant anti-corrosive cursor electrode cable |
| CN102290152A (en) * | 2011-08-31 | 2011-12-21 | 泛亚电缆集团有限公司 | Method for manufacturing conductor wire core in super flexible cable |
| CN104282365A (en) * | 2014-05-13 | 2015-01-14 | 山东无棣海丰电缆有限公司 | Warping-resistant and stretching-resistant multi-purpose braided cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040526 Termination date: 20090729 |