CN113488237A - Anti-interference, anti-static, reinforced and coal mining machine metal shielding rubber jacketed flexible cable - Google Patents
Anti-interference, anti-static, reinforced and coal mining machine metal shielding rubber jacketed flexible cable Download PDFInfo
- Publication number
- CN113488237A CN113488237A CN202110629542.5A CN202110629542A CN113488237A CN 113488237 A CN113488237 A CN 113488237A CN 202110629542 A CN202110629542 A CN 202110629542A CN 113488237 A CN113488237 A CN 113488237A
- Authority
- CN
- China
- Prior art keywords
- layer
- electric field
- static
- metal shielding
- interference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002184 metal Substances 0.000 title claims abstract description 30
- 239000003245 coal Substances 0.000 title abstract description 12
- 238000005065 mining Methods 0.000 title abstract description 12
- 239000010410 layer Substances 0.000 claims abstract description 59
- 230000005684 electric field Effects 0.000 claims abstract description 38
- 239000011241 protective layer Substances 0.000 claims abstract description 13
- 230000003068 static effect Effects 0.000 claims abstract description 11
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 239000004020 conductor Substances 0.000 claims description 22
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention relates to the technical field of anti-interference, anti-static, reinforced and coal mining machine metal shielding rubber jacketed flexible cables, and discloses an anti-interference, anti-static, reinforced and coal mining machine metal shielding rubber jacketed flexible cable which comprises an outer sheath and an inner sheath positioned in the outer sheath, wherein an electric field protective layer is arranged between the outer sheath and the inner sheath, the electric field protective layer is assembled for balancing an electric field in the outer sheath and shielding external static electricity, the electric field protective layer plays a role of balancing the electric field through a semi-conducting layer, because the cable is formed by combining all conducting wires, the electric field intensity of the overlapped part can be enhanced or weakened, so that the field intensity and the direction of the combined electric field are uneven, the electric field is homogenized through the semi-conducting layer, a phosphating film is laid between the outer sheath and the semi-conducting layer to balance the electric field, when a coal mining machine works, the metal shielding rubber jacketed flexible cable is bundled with other cables, can shield static through the phosphating coating, avoid outside static to produce the influence to inside each wire.
Description
Technical Field
The invention relates to the technical field of metal shielding rubber jacketed flexible cables of coal mining machines, in particular to an anti-interference, anti-static and reinforced metal shielding rubber jacketed flexible cable of a coal mining machine.
Background
The metal shielding rubber jacketed flexible cable of the coal mining machine has the characteristics of good oil resistance, flame retardance, impact resistance, tear resistance and the like, the rated working voltage of the cable is 0661.14kV to 1.9/3.3kV, the long-term allowable working temperature of the cable is 90C, the environmental temperature during laying the cable is not lower than-20C and not higher than 50C, the minimum bending radius of the cable is 6 times of the diameter of the cable, and meanwhile, the ground wire core of the cable is well grounded.
According to patent number 201410343517.0, a coal-winning machine metal shielding is around package strenghthened type rubber cover flexible cable is disclosed, including sheath and cladding in a plurality of power sinle silk and the control sinle silk of mutual transposition in the sheath, the sheath includes inner sheath, oversheath and locates enhancement layer in the middle of inner sheath and the oversheath, the enhancement layer is formed around the package by stranded high strength fiber, adopts low-smoke low-halogen flame retardant rubber mixture material with inner sheath and oversheath, has fire-retardant function, has established the enhancement layer that the one deck was around the package simultaneously between inner sheath and oversheath, and the cable of being convenient for uses in the link joint, has increased cable life, so this cable possesses fire-retardant, high strength, high tensile, high extrusion, resistant oil, heat-resisting, shock resistance and resistant crooked characteristic.
The prior art has the disadvantages that different electric fields are generated by each wire in the cable protective sheath, the combined electric field formed by the electric fields is irregular, particularly, when the cable is bent in operation, the surface of the insulating layer of the cable is stretched under the action of tension, and if partial discharge is caused by the irregular electric field, submicroscopic cracks are generated due to surface bending stress to cause the initiation of electric branches, or the surface is corroded by partial discharge to cause new cracks to cause new branches.
Disclosure of Invention
The invention aims to provide an anti-interference, anti-static and reinforced metal shielding rubber jacketed flexible cable for a coal mining machine, which can balance an internal electric field, shield external static interference and enhance the tear resistance of the cable.
Technical scheme
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme: the utility model provides an anti-interference, prevent static, strenghthened type, coal-winning machine metal shielding rubber cover flexible cable, includes the oversheath with be located the inner sheath in the oversheath, the oversheath with be provided with the electric field protective layer between the inner sheath, the electric field protective layer is assembled and is used for the equilibrium the electric field in the oversheath to shield external static.
Preferably, a control line body and a power line body are arranged in the inner protective layer, the control line body and the power line body both take the middle axis of the inner protective layer as an axis, and the control line body and the power line body are annularly arrayed in the inner protective layer.
Preferably, the electric field protection layer comprises a phosphating film and a semi-conducting layer, the inner wall of the outer sheath is provided with the phosphating film, and the phosphating film is positioned on the outer wall of the semi-conducting layer.
Preferably, a ground wire core insulating sleeve is arranged in the inner protective layer, and a ground wire core conductor is sleeved in the ground wire core insulating sleeve.
Preferably, the control line body comprises a control line core conductor and a control line core insulating layer, the control line core insulating layer is sleeved in the ground line core conductor, and the control line core conductor is sleeved in the control line core insulating layer.
Preferably, the power line body comprises a power wire core conductor, a power wire core insulating sleeve and a metal shielding layer, the power wire core insulating sleeve is sleeved on the outer wall of the power wire core conductor, the metal shielding layer is sleeved on the outer wall of the power wire core insulating sleeve, and the metal shielding layer is located in the inner protective layer.
Preferably, a reinforcing layer is sleeved on the outer wall of the inner sheath layer, and the reinforcing layer is located in the semi-conductive layer.
Compared with the prior art, the anti-interference, anti-static, reinforced and coal mining machine metal shielding rubber jacketed flexible cable provided by the embodiment of the invention has the following beneficial effects:
according to the invention, the internal electric field can be balanced, external electrostatic interference is shielded, the tear resistance of the cable is enhanced, the semi-conducting layer plays a role in balancing the electric field, the electric field generated by the cable is combined by all the wires and is superposed, the electric field at the superposed part can be enhanced or weakened, so that the combined electric field is not uniform, the electric field is homogenized by the semi-conducting layer, the phosphating film is paved on the outer wall of the semi-conducting layer, when the coal mining machine works, the metal shielding rubber jacketed flexible cable is bundled with other cables, and the metal shielding rubber jacketed flexible cable can shield static electricity by the phosphating film, so that the influence of external static electricity on all the wires inside is avoided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.
Drawings
FIG. 1 is a schematic view of the overall front structure of the present invention;
FIG. 2 is a schematic view of a partial structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic cross-sectional view of a control wire according to the present invention;
fig. 5 is a schematic cross-sectional view of the power wire body of the present invention.
In the figure: 1. an outer sheath; 2. an electric field protection layer; 3. an inner protective layer; 4. a control wire body; 5. a power line body; 6. a reinforcing layer; 21. phosphating film; 22. a semiconducting layer; 41. a control wire core conductor; 42. a control wire core insulating layer; 43. a ground core conductor; 44. a ground wire core insulating sleeve; 51. a power core conductor; 52. a power wire core insulating sleeve; 53. and a metal shielding layer.
Detailed Description
So that the objects, technical solutions and advantages of the embodiments of the present disclosure will be more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The first embodiment is as follows:
as shown in fig. 1 to 3, an electric field protection layer 2 is disposed between an outer sheath 1 and a reinforcing layer 6, and the electric field protection layer 2 includes a phosphate coating 21 and a semi-conducting layer 22, and plays a role of equalizing an electric field through the semi-conducting layer 22, because a cable is formed by combining individual wires, the electric fields generated by the wires are overlapped, and the electric field intensity of the overlapped portion is enhanced or weakened, so that the magnitude and direction of the field intensity of the combined electric field are different, and the electric field can be equalized through the semi-conducting layer 22, because a metal shielding rubber-sheathed flexible cable is bundled with other cables when a coal mining machine works, the phosphate coating 21 is laid between the outer sheath 1 and the semi-conducting layer 22, and static electricity generated by other cables can be shielded, thereby protecting an inner wire, and preventing a control wire body 4 and a power wire body 5 from being fluctuated.
Example two:
further, as shown in fig. 3 to 5, the metal shielding layer 53 is disposed on the outer wall of the power core insulating sleeve 52, so that the interference of external electromagnetism on the power core conductor 51 can be avoided, and meanwhile, the electric field of the power core conductor 51 is limited in the metal shielding layer 53, so that the interference of the electric field of the power core conductor 51 on other wires is avoided.
Example three:
further, as shown in fig. 1 to 3, a reinforcing layer 6 is disposed on the outer wall of the inner sheath 3, and the tear resistance of the cable can be enhanced by the reinforcing layer 6, so that a crack is prevented from being generated when the cable is bent, and the internal conductor is protected.
When the cable is operated, the control core conductor 41 is protected by the control core insulating layer 42, and a transverse current is conducted into the ground through the ground core conductor 43, preventing an axial surface discharge, and protecting the ground core conductor 43 by the ground core insulating sheath 44.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (7)
1. The utility model provides an anti-interference, prevent static, strenghthened type, coal-winning machine metallic shield rubber cover flexible cable, includes oversheath (1) and is located interior sheath (3) in oversheath (1), its characterized in that: an electric field protection layer (2) is arranged between the outer sheath (1) and the inner protection layer (3), and the electric field protection layer (2) is assembled to balance an electric field in the outer sheath (1) and shield outside static electricity.
2. The anti-interference, anti-static, reinforced shearer metal shielding rubber jacketed flexible cable according to claim 1, characterized in that: the inner protection layer (3) is internally provided with a control wire body (4) and a power wire body (5), the control wire body (4) and the power wire body (5) both use the middle shaft of the inner protection layer (3) as a shaft, and are arrayed in the inner protection layer (3) in an annular mode.
3. The anti-interference, anti-static, reinforced shearer metal shielding rubber jacketed flexible cable according to claim 1, characterized in that: the electric field protection layer (2) comprises a phosphating film (21) and a semi-conducting layer (22), the phosphating film (21) is arranged on the inner wall of the outer sheath (1), and the phosphating film (21) is located on the outer wall of the semi-conducting layer (22).
4. The anti-interference, anti-static, reinforced shearer metal shielding rubber jacketed flexible cable according to claim 1, characterized in that: and a ground wire core insulating sleeve (44) is arranged in the inner protective layer (3), and a ground wire core conductor (43) is sleeved in the ground wire core insulating sleeve (44).
5. The anti-interference, anti-static, reinforced shearer metal shielding rubber jacketed flexible cable according to claim 2, characterized in that: the control line body (4) comprises a control line core conductor (41) and a control line core insulating layer (42), the control line core insulating layer (42) is sleeved in a ground line core conductor (43), and the control line core conductor (41) is sleeved in the control line core insulating layer (42).
6. The anti-interference, anti-static, reinforced shearer metal shielding rubber jacketed flexible cable according to claim 2, characterized in that: the power line body (5) comprises a power wire core conductor (51), a power wire core insulating sleeve (52) and a metal shielding layer (53), the power wire core insulating sleeve (52) is sleeved on the outer wall of the power wire core conductor (51), the metal shielding layer (53) is sleeved on the outer wall of the power wire core insulating sleeve (52), and the metal shielding layer (53) is located in the inner protective layer (3).
7. The anti-interference, anti-static, reinforced shearer metal shielding rubber jacketed flexible cable according to claim 1, characterized in that: the outer wall of the inner protection layer (3) is sleeved with a reinforcing layer (6), and the reinforcing layer (6) is located in the semi-conducting layer (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110629542.5A CN113488237A (en) | 2021-06-07 | 2021-06-07 | Anti-interference, anti-static, reinforced and coal mining machine metal shielding rubber jacketed flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110629542.5A CN113488237A (en) | 2021-06-07 | 2021-06-07 | Anti-interference, anti-static, reinforced and coal mining machine metal shielding rubber jacketed flexible cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113488237A true CN113488237A (en) | 2021-10-08 |
Family
ID=77934236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110629542.5A Pending CN113488237A (en) | 2021-06-07 | 2021-06-07 | Anti-interference, anti-static, reinforced and coal mining machine metal shielding rubber jacketed flexible cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113488237A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3351706A (en) * | 1965-03-18 | 1967-11-07 | Simplex Wire & Cable Co | Spaced helically wound cable |
| CN103545032A (en) * | 2013-10-24 | 2014-01-29 | 兴乐电缆有限公司 | Cable for coal mine frequency conversion device with voltage of 1.9/3.3kv and below |
| CN207199349U (en) * | 2017-08-09 | 2018-04-06 | 重庆市鸿盛电线电缆有限公司 | A kind of Novel practical insulated cable |
-
2021
- 2021-06-07 CN CN202110629542.5A patent/CN113488237A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3351706A (en) * | 1965-03-18 | 1967-11-07 | Simplex Wire & Cable Co | Spaced helically wound cable |
| CN103545032A (en) * | 2013-10-24 | 2014-01-29 | 兴乐电缆有限公司 | Cable for coal mine frequency conversion device with voltage of 1.9/3.3kv and below |
| CN207199349U (en) * | 2017-08-09 | 2018-04-06 | 重庆市鸿盛电线电缆有限公司 | A kind of Novel practical insulated cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209747161U (en) | Intelligent, mechanical impact resistant and flame retardant rubber jacketed flexible cable for coal mining machine | |
| CN206331820U (en) | The fire protection flame retarding wire harness overcoat that a kind of basalt fibre is made | |
| CN210777936U (en) | High-weather-resistance solar photovoltaic cable | |
| CN113488237A (en) | Anti-interference, anti-static, reinforced and coal mining machine metal shielding rubber jacketed flexible cable | |
| CN209880225U (en) | Self-supporting fire-resistant waterproof computer cable | |
| CN216250051U (en) | Aluminum alloy interlocking armored cable | |
| CN212380165U (en) | Wear-resistant outdoor cable | |
| CN104616761A (en) | Flat cable of elevator | |
| CN209000585U (en) | A kind of compound aerial cable of high intensity strengthening core | |
| CN206441571U (en) | Communication power supply aluminium alloy conductor flame retardant special cable | |
| CN215643803U (en) | High-temperature-resistant anti-cracking power cable | |
| CN210271858U (en) | Anti-breaking flame-retardant cable | |
| CN205406125U (en) | Bending resistant cable | |
| CN101887782A (en) | Lightning-protection optical cable | |
| CN210271839U (en) | Reinforced waterproof cable | |
| CN214253943U (en) | Flame-retardant deflection-resistant industrial cable | |
| CN213635467U (en) | Polyethylene oxide insulated wire | |
| CN214705472U (en) | Synthetic insulating jacket for electric power transmission | |
| CN211087978U (en) | Power cable with electromagnetic resistance and corona resistance | |
| CN221175815U (en) | Copper wire shielding steel tape armored control cable | |
| CN213277521U (en) | Anti-interference overhead shielding transmission cable | |
| CN215770584U (en) | Special high-temperature-resistant and corrosion-resistant computer cable | |
| CN218384542U (en) | Tensile rubber jacketed flexible cable resistant to external force | |
| CN215577901U (en) | Control cable for tunnel of leak protection electric function | |
| CN220933786U (en) | Extrusion-resistant and cracking-resistant low-voltage cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211008 |
|
| RJ01 | Rejection of invention patent application after publication |