CN203165511U - Novel coal mining machine variable-frequency cable - Google Patents
Novel coal mining machine variable-frequency cable Download PDFInfo
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- CN203165511U CN203165511U CN 201320224449 CN201320224449U CN203165511U CN 203165511 U CN203165511 U CN 203165511U CN 201320224449 CN201320224449 CN 201320224449 CN 201320224449 U CN201320224449 U CN 201320224449U CN 203165511 U CN203165511 U CN 203165511U
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Abstract
The utility model discloses a novel coal mining machine variable-frequency cable. Insulating power wire cores, a gourd wire core and a control wire core group are stranded together to form a cable core; a mesh-shaped nylon reinforcing layer is braided at the exterior of the cable core; an outer sheath is pressingly wrapped at the outermost layer of the cable; and the outer sheath is made of heavy-duty chlorinated polyethylene rubber in an extruding and wrapping manner. According to the novel coal mining machine variable-frequency cable of the utility model, metal is adopted to braid shielding layers, such that interference of electromagnetic waves and ultraharmonics produced in the electrification of a power conductor on an equipment control system can be effectively inhibited, when the interference of electromagnetic waves and ultraharmonics is serious, misoperation can be caused; the mesh-shaped nylon reinforcing layer is adopted, a shear force and a bending force which are applied on the cable and are caused by frequent torsion and bending movement of excavation equipment can be effectively counteracted; and therefore, the service life of the cable can be obviously prolonged.
Description
Technical field:
The utility model relates to a kind of novel coal-winning machine frequency-changing cable.
Background technology:
In recent years, RHVC relies on its energy-conservation, as to be easy to automatic control significant advantage, being deep in all trades and professions more and more widely, increasing colliery extractive equipment has also used RHVC, RHVC has numerous advantages, have the power factor height, start advantages such as steady, that speed-regulating range width is easy to use, but because a large amount of nonlinear circuit elements (as: heavy-duty diode, transistor etc.) are contained in frequency converter inside, it produces a large amount of high order harmonic components, reaches higher harmonic current.For frequency converter-electric cable for coal mining machine-coal-winning machine, electric energy flows to coal-winning machine by cable, the electric energy of cable output becomes interference source, load motor and other contiguous electric equipments is produced interference, especially instrument, computer control system disturb that to give prominence to, trace it to its cause be because there is stray capacitance in cable, can produces the capacitive electric leakage, and this electric current is subjected to the excitation of high order harmonic component and produces that attenuated oscillation causes.Electric cable for coal mining machine if do not carry out the special construction design, will make the harmonic wave extent of injury strengthen as the carrier of electric energy transmitting and equipment controling signal transmission.Therefore require the frequency conversion coal-winning machine to have the external interference of not being subjected on the one hand, do not disturb characteristic such as contiguous electric equipment with cable, also require cable to have the long life simultaneously.
How solving the interference of harmonic wave and improve mechanical performances such as the bending resistance, shock resistance of cable, anti-extrusion, tension will be to produce to be applicable to that the frequency conversion coal-winning machine is with long-life cable key.
Summary of the invention:
For overcoming the defective of prior art, the purpose of this utility model is to provide a kind of high shielding, counter-bending, anti-extrusion, tension, novel coal-winning machine frequency-changing cable of wear-resisting, fire-retardant long life.
The utility model technical solution problem adopts following technical scheme:
A kind of novel coal-winning machine frequency-changing cable, by insulation power core, core and control core group are stranded constitutes cable core, described cable core is woven with netted nylon reinforced layer outward, the outermost layer of cable is extruded with oversheath.
Described oversheath adopts heavy haloflex rubber to extrude formation.
The conductor of described insulation power core is closed by six class tin-coated copper conductor bundle, and it is stranded in the same way that bundle closes the conductor strand, is provided with successively to isolate belting layer, Ethylene Propylene Terpolymer rubber insulating barrier and metal and fiber mixed weaving screen outside described six class tin-coated copper conductors.
The conductor of described ground core is stranded by six class tin-coated copper conductors, and described conductor is provided with semiconductive shielding layer outward.
The conductor of described control core group is wrapped on the high strength fibre and constitutes by surpassing the zinc-plated soft copper conductor of six classes, conductor is extruded with Ethylene Propylene Terpolymer rubber insulating barrier outward, the control core is twisted into cable, the cable core of control core is provided with aluminium-plastic tape and metal knitted screen outward, and the cable core outermost layer of control core is extruded with the rubber coating layer.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
The utility model utilizes metal knitted screen can effectively isolate high order harmonic component, irradiation of electromagnetic waves and conduction; Utilize the woven nylon net to can be used as the reinforced layer of cable, can effectively offset because extractive equipment frequently reverses, crooked mobile shearing force, the bending force that cable is produced, thereby obviously prolong the useful life of cable.
Insulation power line core conductor of the present utility model and ground wire core conductor adopt the zinc-plated soft copper tow strand of six classes conductor structure, the control line core conductor adopts and to surpass the zinc-plated soft copper conductor of six classes and be wrapped in structure on the high strength fibre, the stranded wrapped aluminium-plastic tape in back of many insulated pilot wire cores and braided metal material are formed screen, extrude the rubber coating layer again; The netted structure of cable conductor external application high-strength nylon fibrage, oversheath adopt heavy haloflex rubber material to make.It is to have the high performance cable that integrates high shielding, counter-bending, anti-extrusion, tension, wear-resisting, fire-retardant, soft long life, applies to the high-performance electric cable for coal mining machine that coal mine down-conversion coal-winning machine power supply and similar devices connect usefulness specially.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
Number in the figure: 1 insulation power core; 2 six class tin-coated copper conductors; 3 isolate belting layer; 4 Ethylene Propylene Terpolymer rubber insulating barriers; 5 metals and fiber mixed weaving screen; 6 ground cores; 7 semiconductive shielding layers; 8 control core groups; 9 high strength fibres; 10 surpass the zinc-plated soft copper conductor of six classes; 11 aluminium-plastic tapes and metal knitted screen; 12 rubber coating layers; 13 netted nylon reinforced layers; 14 oversheaths.
Below pass through embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
Embodiment:
Embodiment: referring to Fig. 1, the novel coal-winning machine frequency-changing cable of present embodiment, by insulation power core 1, core 6 and control core group 8 are stranded constitutes cable core, cable core is woven with netted nylon reinforced layer 13 outward, the outermost layer of cable is extruded with oversheath 14, and oversheath 14 adopts heavy haloflex rubber to extrude formation.The outer nylon fiber network structure of cable core can be good at integrally combining with oversheath when extruding sheath, plays significantly improving oversheath intensity, and then improves the overall mechanical properties of cable.
In specifically arranging, the conductor of insulation power core 1 is closed by six class tin-coated copper conductors, 2 bundles, it is stranded in the same way that bundle closes the conductor strand, is provided with successively to isolate belting layer 3, Ethylene Propylene Terpolymer rubber insulating barrier 4 and metal and fiber mixed weaving screen 5 outside six class tin-coated copper conductors.The conductor of ground core 6 is stranded by six class tin-coated copper conductors 2, and outside conductor, be provided with semiconductive shielding layer 7, the purpose of the She Zhiing static of being convenient to the power line wicking surface with fully contacting of ground wire core conductor that is to improve cable power core or the conduction of short circuit current like this.The outer wrapped layer of aluminum plastic composite strip of cable core and the metal knitted screen 11 of control core group 8 are extruded with rubber coating layer 12 again; the purpose of She Zhiing is to shield into the interference of the high order harmonic component that can effectively suppress the frequency convertor generation like this, extrudes the rubber coating layer and can effectively protect the control core injury-free in the frequent BENDING PROCESS of cable.The insulated wire cores conductor of wherein controlling core is wrapped on the high strength fibre 9 and constitutes by surpassing the zinc-plated soft copper conductor 10 of six classes, and conductor is extruded with Ethylene Propylene Terpolymer rubber insulating barrier 4 outward, the stranded stranding of insulated wire cores.
Claims (5)
1. novel coal-winning machine frequency-changing cable, it is characterized in that by insulation power core (1), core (6) and control the stranded formation cable core of core group (8), described cable core is woven with netted nylon reinforced layer (13) outward, and the outermost layer of cable is extruded with oversheath (14).
2. a kind of novel coal-winning machine frequency-changing cable according to claim 1 is characterized in that described oversheath (14) adopts heavy haloflex rubber to extrude formation.
3. a kind of novel coal-winning machine frequency-changing cable according to claim 1, the conductor that it is characterized in that described insulation power core (1) is closed by six class tin-coated copper conductors (2) bundle, it is stranded in the same way that bundle closes the conductor strand, is provided with successively to isolate belting layer (3), Ethylene Propylene Terpolymer rubber insulating barrier (4) and metal and fiber mixed weaving screen (5) outside described six class tin-coated copper conductors (2).
4. a kind of novel coal-winning machine frequency-changing cable according to claim 1 is characterized in that the conductor of described ground core (6) is stranded by six class tin-coated copper conductors (2), and described conductor is provided with semiconductive shielding layer (7) outward.
5. a kind of novel coal-winning machine frequency-changing cable according to claim 1, the conductor that it is characterized in that described control core group (8) is wrapped in upward formation of high strength fibre (9) by surpassing the zinc-plated soft copper conductors of six classes (10), conductor is extruded with Ethylene Propylene Terpolymer rubber insulating barrier (4) outward, the control core is twisted into cable, the cable core of control core is provided with aluminium-plastic tape and metal knitted screen (11) outward, and the cable core outermost layer of control core is extruded with rubber coating layer (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320224449 CN203165511U (en) | 2013-04-27 | 2013-04-27 | Novel coal mining machine variable-frequency cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320224449 CN203165511U (en) | 2013-04-27 | 2013-04-27 | Novel coal mining machine variable-frequency cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203165511U true CN203165511U (en) | 2013-08-28 |
Family
ID=49026676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320224449 Expired - Lifetime CN203165511U (en) | 2013-04-27 | 2013-04-27 | Novel coal mining machine variable-frequency cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203165511U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871591A (en) * | 2014-02-23 | 2014-06-18 | 安徽华海特种电缆集团有限公司 | Flat cable for mobile frequency converter |
| CN105719744A (en) * | 2016-03-03 | 2016-06-29 | 安徽华宇电缆集团有限公司 | Mining fluorescence cable for coal mining machine |
-
2013
- 2013-04-27 CN CN 201320224449 patent/CN203165511U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871591A (en) * | 2014-02-23 | 2014-06-18 | 安徽华海特种电缆集团有限公司 | Flat cable for mobile frequency converter |
| CN103871591B (en) * | 2014-02-23 | 2017-04-05 | 安徽华海特种电缆集团有限公司 | A kind of mobile model converter flat cable |
| CN105719744A (en) * | 2016-03-03 | 2016-06-29 | 安徽华宇电缆集团有限公司 | Mining fluorescence cable for coal mining machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |