CN209591578U - Novel variable-frequency electric cable for coal mining machine - Google Patents
Novel variable-frequency electric cable for coal mining machine Download PDFInfo
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- CN209591578U CN209591578U CN201920316498.0U CN201920316498U CN209591578U CN 209591578 U CN209591578 U CN 209591578U CN 201920316498 U CN201920316498 U CN 201920316498U CN 209591578 U CN209591578 U CN 209591578U
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Abstract
The utility model discloses Novel variable-frequency electric cable for coal mining machine, including oversheath, inner sheath is provided on the inside of the oversheath, the inner sheath medial shaft straight end bottom is provided with power frequency cable unit, and frequency-changing cable unit is provided at the top of power frequency cable unit, the vertical end two sides of the power frequency cable unit and frequency-changing cable unit are provided with control conductor unit, the power frequency cable unit includes main line core conductor, ground wire core conductor and first band wrapping layer, the main line core conductor and ground wire core conductor are located on the inside of first band wrapping layer, the control conductor unit includes the second band wrapping layer and control core conductor.In the utility model, by the way that power frequency cable unit, frequency-changing cable unit, control conductor unit to be incorporated on a cable, space is saved, the outer diameter of cable is substantially reduced, be conducive to the exploitation of smaller shorter ultra-thin coal seam frequency conversion coalcutter, while being easily installed maintenance personal's installation and repairing.
Description
Technical field
The utility model relates to communication cable technical field more particularly to Novel variable-frequency electric cable for coal mining machine.
Background technique
AC frequency conversion electrical haulage very thin seam coal winning machine embodies current newest very thin seam coal winning machine technology, fuselage it is short and
Short, traction uses variable-frequency power sources, and coal cutting uses power frequency supply, is able to satisfy " four-quadrant " operation, and coalcutter rises and falls big, empty in coal seam
Between it is narrow in the case where run it is more flexible.Current this coalcutter has to that 2 different cables are matched, and 1 is traction
Cable uses frequency conversion soft rubber cable, and 1 is coal cutting electric cable using power frequency soft rubber cable.
The cable Shortcomings that AC frequency conversion electrical haulage very thin seam coal winning machine now uses, firstly, very thin seam coal winning machine
The cable used is unable to simultaneous transmission frequency conversion and power frequency supply, needs in addition to configure the cable for being able to achieve power line carrier, PLC；Its
Secondary, existing cable flexibility, resistance to bend(ing), mechanical strength are inadequate, easy to damage in daily production.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and the Novel variable-frequency coalcutter proposed
Cable.
To achieve the goals above, the utility model adopts the technical scheme that
Novel variable-frequency electric cable for coal mining machine, including oversheath are provided with inner sheath, the inner sheath on the inside of the oversheath
Medial shaft straight end bottom is provided with power frequency cable unit, and frequency-changing cable unit is provided at the top of power frequency cable unit, described
The vertical end two sides of power frequency cable unit and frequency-changing cable unit are provided with control conductor unit, the power frequency cable unit packet
Include main line core conductor, ground wire core conductor and first band wrapping layer, the main line core conductor and ground wire core conductor be located at first band around
On the inside of covering, it is provided with total shielded layer on the inside of the first band wrapping layer, is coated with the first insulation on the outside of the main line core conductor
Layer, the ground wire core conductor outside are coated with rubber semi-conductive layer, and the control conductor unit includes the second band wrapping layer and control
Cable core conductor processed, the control core conductor are located on the inside of the second band wrapping layer, and the is coated on the outside of the control core conductor
Two insulating layers, the control core conductor inside are provided with wirerope.
It is as above-mentioned technical proposal to further describe:
The main line core conductor and the first insulating layer along first band wrapping layer the setting of center of circle array there are three, and first absolutely
Reinforcement bedding core is provided on the inside of the cavity of edge layer overlapping.
It is as above-mentioned technical proposal to further describe:
The rubber semi-conductive layer is located at two the first insulating layers and is bonded in the cavity to be formed with first band wrapping layer.
It is as above-mentioned technical proposal to further describe:
The wirerope, control core conductor and second insulating layer prolong the second center of circle array with wrapping layer and are provided with four
It is a, and strengthening core is provided on the inside of the formation cavity of four second insulating layer fittings.
It is as above-mentioned technical proposal to further describe:
Fabric reinforcement is provided between the oversheath and inner sheath.
It is as above-mentioned technical proposal to further describe:
The power frequency cable unit is identical as frequency-changing cable cellular construction, and power frequency cable element diameter is greater than frequency-changing cable
Element diameter.
It is as above-mentioned technical proposal to further describe:
It is coated with glass fibre belt wrapping layer on the outside of first insulating layer, is provided with split-phase screen among the glass fibre belt wrapping layer
Cover layer.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
1, in the utility model, by the way that power frequency cable unit, frequency-changing cable unit, control conductor unit are incorporated into one
On cable, space has been saved, has substantially reduced the outer diameter of cable, has been conducive to opening for smaller shorter ultra-thin coal seam frequency conversion coalcutter
Hair, while being easily installed maintenance personal's installation and repairing.
2, in the utility model, the inner sheath made of high resiliency neoprene rubber fills up all gaps outside cable core and increases
Fixed insulated wire cores improve the resistance to twisting property of cable, then the fiber made of the aramid fiber of count about 80% is reinforced
Layer, can further improve the mechanical strength of oversheath, finally by the oversheath made of high-intensitive, high abrasion neoprene rubber,
Tensile strength height, the flexibility, wearability for increasing cable, are conducive to cable and pull use for a long time.
3, in the utility model, by power line carrier, PLC substitution signal core unit, signal wire core unit is eliminated, no
The outside diameter of cable is only reduced, the resistance to bend(ing) energy of cable is improved, and is completely eliminated usually because the disconnected core of signal core causes
The hidden danger that whole cable is scrapped.
Detailed description of the invention
Fig. 1 is Novel variable-frequency electric cable for coal mining machine structural schematic diagram in the utility model；
Fig. 2 is power frequency cable cellular construction schematic diagram in the utility model；
Fig. 3 is control conductor cellular construction schematic diagram in the utility model.
Marginal data:
1, oversheath；2, fabric reinforcement；3, inner sheath；4, power frequency cable unit；401, rubber semi-conductive layer；402, main
Cable core conductor；403, the first insulating layer；404, reinforce bedding core；405, ground wire core conductor；406, first band wrapping layer；407, total screen
Cover layer；408, glass；409, split-phase shielded layer；5, control conductor unit；501, wirerope；502, control core conductor；503,
Second insulating layer；504, strengthening core；505, the second band wrapping layer；6, frequency-changing cable unit.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig.1-3, Novel variable-frequency electric cable for coal mining machine, including oversheath 1, oversheath 1 are made of neoprene rubber, oversheath
1 inside is provided with inner sheath 3, and inner sheath 3 has high resiliency neoprene rubber to be made, and inner sheath 3 fills up outside cable core all
Gap, 3 medial shaft straight end bottom of inner sheath is provided with power frequency cable unit 4, and the top of power frequency cable unit 4 is provided with variable-frequency electric
The vertical end two sides of cable unit 6, power frequency cable unit 4 and frequency-changing cable unit 6 are provided with control conductor unit 5, power frequency electric
Cable unit 4 includes main line core conductor 402, ground wire core conductor 405 and first band wrapping layer 406, is set on the inside of first band wrapping layer 406
It is equipped with total shielded layer 407, main line core conductor 402 and ground wire core conductor 405 are located at 406 inside of first band wrapping layer, and master core is led
It is coated with the first insulating layer 403 on the outside of body 402, is coated with rubber semi-conductive layer 401, control conductor on the outside of ground wire core conductor 405
Unit 5 includes the second band wrapping layer 505 and control core conductor 502, and control core conductor 502 is located at the second band wrapping layer 505
Inside is coated with second insulating layer 503 on the outside of control core conductor 502, is provided with wirerope on the inside of control core conductor 502
501。
Further, main line core conductor 402 and the first insulating layer 403 are arranged along the center of circle array of first band wrapping layer 406
There are three, and be provided on the inside of the cavity of the first insulating layer 403 overlapping and reinforce bedding core 404, reinforce bedding core 404 and improves mechanical strength
And it is formed to master core.
Further, rubber semi-conductive layer 401 is located at two the first insulating layers 403 and is bonded shape with first band wrapping layer 406
At cavity in, rubber semi-conductive layer 401 and 405 quantity of ground wire core conductor are identical as 402 quantity of main line core conductor.
Further, wirerope 501, control core conductor 502 and second insulating layer 503 prolong second with wrapping layer 505
There are four the settings of center of circle array, and the formation cavity inside that four second insulating layers 503 are bonded is provided with strengthening core 504, with true
The minimum clearance between four Thursdays eradication edge core is protected at (2~3mm).
Further, it is provided with fabric reinforcement 2 between oversheath 1 and inner sheath 3, further increases the machine of oversheath 1
Tool intensity.
Further, power frequency cable unit 4 is identical as 6 structure of frequency-changing cable unit, and 4 diameter of power frequency cable unit is greater than
6 diameter of frequency-changing cable unit, main line core conductor 402, ground wire core conductor 405 are twisted with fine pith by the 6th kind of tin plating soft copper silk
It constitutes.
Further, glass fibre belt wrapping layer 408 is coated on the outside of the first insulating layer 403, in the glass fibre belt wrapping layer 408
Between be provided with split-phase shielded layer 409, signal interference is prevented by split-phase shielded layer 409.
Working principle: increase in use, the inner sheath 3 made of high resiliency neoprene rubber fills up all gaps outside cable core
It is fixed the resistance to twisting property that insulated wire cores improve cable, then the fiber made of the aramid fiber of count about 80% adds
Strong layer 2, can further improve the mechanical strength of oversheath 1, finally by the outer shield made of high-intensitive, high abrasion neoprene rubber
Set 1, increases tensile strength height, the flexibility, wearability of cable, is conducive to cable and pulls use for a long time, pass through power frequency cable list
Member 4 is identical with the structure of frequency-changing cable unit 6, by the ground wire core conductor 405 in power frequency cable unit 4 and frequency-changing cable unit 6
Three small cores are divided into, carry out three big three small core symmetric configurations together with three main line core conductors 402, make its electromagnetic field point
Cloth is more uniform, reduces frequency converter and generates interference of the higher hamonic wave to environment or environment to Variable Frequency Drives, improves system and use
The stability of electric safety and coalcutter work, symmetrical structure and shielding design improve the anti-dry of composite design manufacture cable
Disturb ability, it is ensured that the realization of carrier communication function passes through the setting of control conductor unit 5, the transmitting control of control core conductor 502
Instruction, keeps the outer diameter of cable smaller, is more advantageous to the shorter direction coalcutter Xiang Geng little and develops.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (7)
1. Novel variable-frequency electric cable for coal mining machine, including oversheath (1), which is characterized in that in being provided on the inside of the oversheath (1)
Sheath (3), inner sheath (3) the medial shaft straight end bottom are provided with power frequency cable unit (4), and power frequency cable unit (4)
Top is provided with frequency-changing cable unit (6), and the power frequency cable unit (4) and the vertical end two sides of frequency-changing cable unit (6) are equal
It is provided with control conductor unit (5), the power frequency cable unit (4) includes main line core conductor (402), ground wire core conductor (405)
With first band wrapping layer (406), the main line core conductor (402) and ground wire core conductor (405) are located at first band wrapping layer (406)
Inside, first band wrapping layer (406) inside are provided with total shielded layer (407), cladding on the outside of the main line core conductor (402)
Have the first insulating layer (403), is coated with rubber semi-conductive layer (401), the control conductor on the outside of the ground wire core conductor (405)
Unit (5) includes the second band wrapping layer (505) and control core conductor (502), and the control core conductor (502) is located at second
On the inside of band wrapping layer (505), second insulating layer (503), the control conductor are coated on the outside of the control core conductor (502)
Wirerope (501) are provided on the inside of conductor (502).
2. Novel variable-frequency electric cable for coal mining machine according to claim 1, which is characterized in that the main line core conductor (402) and
First insulating layer (403) along first band wrapping layer (406) the center of circle array setting there are three, and the first insulating layer (403) be overlapped
Cavity on the inside of be provided with reinforce bedding core (404).
3. Novel variable-frequency electric cable for coal mining machine according to claim 1 or 2, which is characterized in that the rubber semi-conductive layer
(401) it is located at two the first insulating layers (403) to be bonded with first band wrapping layer (406) in the cavity formed.
4. Novel variable-frequency electric cable for coal mining machine according to claim 1, which is characterized in that the wirerope (501), control line
Core conductor (502) and second insulating layer (503) are prolonged there are four the second center of circle array settings with wrapping layer (505), and four the
Strengthening core (504) are provided on the inside of the formation cavity of two insulating layers (503) fitting.
5. Novel variable-frequency electric cable for coal mining machine according to claim 1, which is characterized in that the oversheath (1) and inner sheath
(3) fabric reinforcement (2) are provided between.
6. Novel variable-frequency electric cable for coal mining machine according to claim 1, which is characterized in that the power frequency cable unit (4) with
Frequency-changing cable unit (6) structure is identical, and power frequency cable unit (4) diameter is greater than frequency-changing cable unit (6) diameter.
7. Novel variable-frequency electric cable for coal mining machine according to claim 1, which is characterized in that first insulating layer (403) is outside
Side is coated with glass fibre belt wrapping layer (408), is provided with split-phase shielded layer (409) among the glass fibre belt wrapping layer (408).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920316498.0U CN209591578U (en) | 2019-03-13 | 2019-03-13 | Novel variable-frequency electric cable for coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920316498.0U CN209591578U (en) | 2019-03-13 | 2019-03-13 | Novel variable-frequency electric cable for coal mining machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209591578U true CN209591578U (en) | 2019-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920316498.0U Active CN209591578U (en) | 2019-03-13 | 2019-03-13 | Novel variable-frequency electric cable for coal mining machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114758830A (en) * | 2022-05-12 | 2022-07-15 | 安徽华能电缆集团有限公司 | High-temperature-resistant, bending-resistant and wear-resistant flat cable of winding drum for frequency conversion device |
-
2019
- 2019-03-13 CN CN201920316498.0U patent/CN209591578U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114758830A (en) * | 2022-05-12 | 2022-07-15 | 安徽华能电缆集团有限公司 | High-temperature-resistant, bending-resistant and wear-resistant flat cable of winding drum for frequency conversion device |
| WO2023131351A1 (en) * | 2022-05-12 | 2023-07-13 | 安徽华能电缆集团有限公司 | High-temperature-resistant, bending-resistant and wear-resistant reeling flat cable for variable frequency device |
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