CN203882722U - Shielded type data cable for mechanical arm - Google Patents
Shielded type data cable for mechanical arm Download PDFInfo
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- CN203882722U CN203882722U CN201420265269.8U CN201420265269U CN203882722U CN 203882722 U CN203882722 U CN 203882722U CN 201420265269 U CN201420265269 U CN 201420265269U CN 203882722 U CN203882722 U CN 203882722U
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- cotton fiber
- polytetrafluoroethylene floor
- data cable
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Abstract
The utility model discloses a shielded type data cable for a mechanical arm. The shielded type data cable comprises eight metal conductor units, wherein every two of the eight metal conductor units are twisted to form four symmetric insulating line pairs, each of the four symmetric insulating line pairs is wound with a first polytetrafluoroethylene belt and then twisted to form a cable core; a second polytetrafluoroethylene layer wraps a cable core longitudinally, and a plurality of cotton yarns are filled in gaps between the second polytetrafluoroethylene layer and the four symmetric insulating line pairs; a cotton fiber wire is wound on the outer surface of the second polytetrafluoroethylene layer to form a buffer sliding layer, the winding direction of the cotton fiber wire is opposite to the twisting direction of the four symmetric insulating line pairs, a plurality of metal wires are wound on the outer surface of the buffer sliding layer side by side to form a metal shielding layer, and the winding direction of metal wires in the metal shielding layer is opposite to that of the cotton fiber wire; and a third polytetrafluoroethylene layer wraps the metal shielding layer. The shielded type data cable has small friction coefficient, is flexible and tension resistant, generates no friction static electricity, and can ensure the structure and electrical performance to be stable after frequent moving.
Description
Technical field
The utility model relates to a kind of data cable, relates in particular to a kind of mechanical arm shield type data cable.
Background technology
The structure of traditional shield type data cable is by 4 groups of symmetric signal line pair sets, wrapped one deck polyester belt, and then wrapped one deck is used for the aluminium-plastic tape shielding, and skin is extruded PVC or other plastic covering layers.Symmetric signal is to being that insulated wire set by the outer coating one deck high-density polyethylene layer of two copper conductors forms.Properties of product meet the code requirement of TIA/EIA568.For solving electric property attenuation problem and the electromagnetic interference problem under lower frequency, some product designs are at aluminium-plastic tape outer braid one deck brass wire shielding.For the shield type data cable that requires mobile use, the right conductor of symmetric signal is replaced by many copper stranded conductors.The data cable of this kind of structure can guarantee transmission performance when fixedly laying and mobile occasion uses.But under frequent mobile, the relative rugged environment of environmental condition such as mechanical arm, the performance reliability of this series products just can not meet the demands, the movement through hundreds of time, just there will be degradation problem under conductor break, decay increase, interference free performance.In mobile process, between insulation, there is friction between insulation and outer band, shielding, easily produce on the one hand static, cause that signal disturbs, friction also can cause the mechanical and physical performance decline of insulating material frequently simultaneously.General mechanical arm all can require 100,000 above movements, if can not solve the impact of the slip of cable core structure, can not solve the problem of product endurance and shielding stability, just can not guarantee the signal transmission demand of mechanical arm.In this point, traditional cable structure is difficult to guarantee to meet the requirements.
How to design a kind of data cable, can guarantee that in 100,000 above type frequently reciprocating processes, signal transmission guarantees to stablize, become the direction that those skilled in the art make great efforts.
Summary of the invention
The utility model provides a kind of mechanical arm shield type data cable, little, the soft stretch-proof of shield type data cable coefficient of friction for this mechanical arm, without frictional static, produce, frequently still can guarantee constitutionally stable shield type data cable after mobile, product is through the bending of 100,000 times, and electric property rate of change is less than 5%.
For achieving the above object, the technical solution adopted in the utility model is: a kind of mechanical arm shield type data cable, comprise: eight copper conductor unit, this copper conductor unit outer surface is coated with insulation polypropylene layer, and described copper conductor unit is by some stranded the forming of copper conductor;
The stranded formation first, second, third between two of described eight copper conductor unit and the 4th symmetrical insulated wire pair, the described first, second, third and the 4th symmetrical insulated wire is all surrounded with the first teflin tape stranded formation cable core to outer surface separately;
The described cable core outer surface of the vertical bag of the second polytetrafluoroethylene floor, described the second polytetrafluoroethylene floor and the first, second, third and the 4th symmetrical insulated wire between gap-fill have some cotton yarns;
One cotton fiber line is wound in described the second polytetrafluoroethylene floor outer surface and forms buffering sliding layer, this cotton fiber line winding direction and the first, second, third and the 4th symmetrical insulated wire strand opposite direction, some one metal wires are wound in abreast described buffering sliding layer outer surface and form metal screen layer, and in this metal screen layer, wire is wound around contrary with described cotton fiber line;
One the 3rd polytetrafluoroethylene floor is wrapped in described metal screen layer outer surface, and an external sheath layer is coated on described the 3rd polytetrafluoroethylene floor outer surface.
In technique scheme, further improve technical scheme as follows:
In such scheme, described cotton fiber line is dredged and is around in described the second polytetrafluoroethylene floor outer surface.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1. the utility model mechanical arm shield type data cable, its the first, second, third and the 4th symmetrical insulated wire is all surrounded with the first teflin tape stranded formation cable core to outer surface separately, the described cable core outer surface of the vertical bag of the second polytetrafluoroethylene floor, in BENDING PROCESS frequently, overcome the first, second, third and the 4th symmetrical insulated wire and separately the distance between copper conductor unit and pitch change, thereby cause the change of electric property, and frequently in BENDING PROCESS, first, second, the third and fourth symmetrical insulated wire is all surrounded with the first teflin tape to outer surface separately, and the second polytetrafluoroethylene floor is by the coated symmetrical insulated wire pair with four the first teflin tapes of vertical packet mode, due to the first teflin tape and the second polytetrafluoroethylene floor, to have coefficient of friction low, intensity is high, corrosion-resistant, good insulation preformance, the coefficient of friction of this band is 0.04, it is the minimum material of coefficient of friction in current solid material, and the mode by vertical bag before metal screen layer is coated, the increase of the frictional force that the overlap joint that minimizing produces due to lapping structure causes, while making frequent bending, the structural change of cable core impact drops to minimum, secondly, owing to reducing frictional force and teflin tape, be not easy to produce static, also greatly reduced the generation of static, improve performance reliability and fail safe.
2. the utility model mechanical arm shield type data cable, the second polytetrafluoroethylene floor and first described in it, second, the third and fourth symmetrical insulated wire between gap-fill have some cotton yarns, one cotton fiber line is wound in described the second polytetrafluoroethylene floor outer surface and forms buffering sliding layer, this cotton fiber line winding direction and first, second, the third and fourth symmetrical insulated wire strand opposite direction, some one metal wires are wound in described buffering sliding layer outer surface and form metal screen layer, in this metal screen layer, wire is wound around contrary with described cotton fiber line abreast, while guaranteeing bending, wire has enough shift positions and does not produce to stretch and cause broken string, between copper wire and insulation sliding layer, more easily slide simultaneously and do not produce electrostatic interference, this structure can guarantee the pliability of cable, also guaranteed the shield effectiveness after frequent bending.
3. the utility model mechanical arm shield type data cable, between its cable core and external sheath layer, be disposed with the second polytetrafluoroethylene floor, one cotton fiber line is wound in described the second polytetrafluoroethylene floor outer surface and forms buffering sliding layer, some one metal wires are wound in abreast buffering sliding layer and form metal screen layer, one the 3rd polytetrafluoroethylene floor is wrapped in described metal screen layer outer surface, between metal screen layer and oversheath, form buffering, avoid, in the reciprocating motion of cable, between oversheath and screen, producing electrostatic interference; Simultaneously, the performance of teflin tape is soft, smooth, can not have influence on the pliability of cable, technology controlling and process during by sheathing, smooth surface makes between cable core and sheath, easily to produce and slide in BENDING PROCESS, reduce the stretching of external force to copper conductor and tincopper fuse wire braided armor, increase the service life.
Accompanying drawing explanation
Accompanying drawing 1 is shield type data cable structural representation for the utility model mechanical arm;
Accompanying drawing 2 is the utility model buffering sliding layer and metal screen layer structural representation;
Accompanying drawing 3 is A-A cross-sectional view in accompanying drawing 2;
Accompanying drawing 4 is comparative example structural representation.
In above accompanying drawing: 1, copper conductor unit; 11, copper conductor; 2, insulation polypropylene layer; 3, the first symmetrical insulated wire pair; 4, the second symmetrical insulated wire pair; 5, the 3rd symmetrical insulated wire pair; 6, the 4th symmetrical insulated wire pair; 7, the first teflin tape; 8, cable core; 9, the second polytetrafluoroethylene floor; 10, cotton yarn; 12, buffering sliding layer; 13, wire; 14, metal screen layer; 15, the 3rd polytetrafluoroethylene floor; 16, external sheath layer; 17, cotton fiber line; 18, polyester belt; 19, wire sheathing.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment: a kind of mechanical arm shield type data cable, comprising: eight copper conductor unit 1, this copper conductor unit 1 outer surface is coated with insulation polypropylene layer 2, and described copper conductor unit 1 forms by some copper conductors 11 are stranded;
The stranded formation first, second, third between two of described eight copper conductor unit 1 and the 4th symmetrical insulated wire be to 3,4,5,6, the described first, second, third and the 4th symmetrical insulated wire to 3,4,5,6 separately outer surface be all surrounded with the first teflin tape 7 stranded formation cable core 8;
Described cable core 8 outer surfaces of the vertical bag of the second polytetrafluoroethylene floor 9, described the second polytetrafluoroethylene floor 9 and the first, second, third and the 4th symmetrical insulated wire have some cotton yarns 10 to gap-fill between 3,4,5,6;
In BENDING PROCESS frequently, overcome the first, second, third and the 4th symmetrical insulated wire and separately the distance between copper conductor unit and pitch change, thereby cause the change of electric property, and frequently in BENDING PROCESS, first, second, the third and fourth symmetrical insulated wire is all surrounded with the first teflin tape to outer surface separately, and the second polytetrafluoroethylene floor is by the coated symmetrical insulated wire pair with four the first teflin tapes of vertical packet mode, due to the first teflin tape and the second polytetrafluoroethylene floor, to have coefficient of friction low, intensity is high, corrosion-resistant, good insulation preformance, the coefficient of friction of this band is 0.04, it is the minimum material of coefficient of friction in current solid material, and the mode by vertical bag before metal screen layer is coated, the increase of the frictional force that the overlap joint that minimizing produces due to lapping structure causes, while making frequent bending, the structural change of cable core impact drops to minimum, secondly, owing to reducing frictional force and teflin tape, be not easy to produce static, also greatly reduced the generation of static, improve performance reliability and fail safe,
One cotton fiber line 17 is wound in described the second polytetrafluoroethylene floor 9 outer surfaces and forms buffering sliding layer 12, these cotton fiber line 17 winding directions are contrary to 3,4,5,6 direction of lays with the first, second, third and the 4th symmetrical insulated wire, some one metal wires 13 are wound in abreast described buffering sliding layer 12 outer surfaces and form metal screen layer 14, and in this metal screen layer 14, wire 13 is wound around contrary with described cotton fiber line 17; While guaranteeing bending on the one hand, copper wire has enough shift positions and does not produce to stretch and cause broken string, between copper wire and insulation sliding layer, more easily slide simultaneously and do not produce electrostatic interference, this structure can guarantee the pliability of cable, has also guaranteed the shield effectiveness after frequent bending;
One the 3rd polytetrafluoroethylene floor 15 is wrapped in described metal screen layer 14 outer surfaces, and an external sheath layer 16 is coated on described the 3rd polytetrafluoroethylene floor 15 outer surfaces.Between metal screen layer and oversheath, form buffering, avoid, in the reciprocating motion of cable, between oversheath and screen, producing electrostatic interference.Simultaneously, the performance of teflin tape is soft, smooth, can not have influence on the pliability of cable, technology controlling and process during by sheathing, smooth surface makes between cable core and sheath, easily to produce and slide in BENDING PROCESS, reduce the stretching of external force to copper conductor and tincopper fuse wire braided armor, increase the service life.
Above-mentioned cotton fiber line 17 is dredged and is around in described the second polytetrafluoroethylene floor 9 outer surfaces.
Comparative example: a kind of mechanical arm shield type data cable, comprise eight copper conductor unit 1, this copper conductor unit 1 outer surface is coated with insulation polypropylene layer 2, and described copper conductor unit 1 forms by some copper conductors 11 are stranded;
The stranded formation first, second, third between two of described eight copper conductor unit 1 and the 4th symmetrical insulated wire are to 3,4,5,6, the described first, second, third and the 4th symmetrical insulated wire is to 3,4,5,6 stranded formation cable cores 8, wrapped described cable core 8 outer surfaces of one polyester belt 18, described polyester belt 18 and the first, second, third and the 4th symmetrical insulated wire have some cotton yarns 10 to gap-fill between 3,4,5,6;
The wire sheathing 19 being formed by some proof copper-wire braideds is positioned at polyester belt 18 outer surfaces, and an external sheath layer 16 is coated on described wire sheathing 19 outer surfaces.
Performance test data is as shown in table 1:
Table 1
Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection range of the present utility model.
Claims (2)
1. a mechanical arm shield type data cable, it is characterized in that: comprising: eight copper conductor unit (1), this copper conductor unit (1) outer surface is coated with insulation polypropylene layer (2), and described copper conductor unit (1) is by stranded the forming of some copper conductors (11);
Described eight copper conductor unit (1) stranded formation first, second, third between two and the 4th symmetrical insulated wire be to (3,4,5,6), the described first, second, third and the 4th symmetrical insulated wire to (3,4,5,6) separately outer surface be all surrounded with the first teflin tape (7) stranded formation cable core (8);
The vertical bag of the second polytetrafluoroethylene floor (9) described cable core (8) outer surface, described the second polytetrafluoroethylene floor (9) and the first, second, third and the 4th symmetrical insulated wire have some cotton yarns (10) to gap-fill between (3,4,5,6);
One cotton fiber line (17) is wound in described the second polytetrafluoroethylene floor (9) outer surface and forms buffering sliding layer (12), this cotton fiber line (17) winding direction is contrary to (3,4,5,6) direction of lay with the first, second, third and the 4th symmetrical insulated wire, some one metal wires (13) are wound in abreast described buffering sliding layer (12) outer surface and form metal screen layer (14), and in this metal screen layer (14), wire (13) is wound around contrary with described cotton fiber line (17);
One the 3rd polytetrafluoroethylene floor (15) is wrapped in described metal screen layer (14) outer surface, and an external sheath layer (16) is coated on described the 3rd polytetrafluoroethylene floor (15) outer surface.
2. mechanical arm according to claim 1 shield type data cable, is characterized in that: described cotton fiber line (17) is dredged and is around in described the second polytetrafluoroethylene floor (9) outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420265269.8U CN203882722U (en) | 2014-05-22 | 2014-05-22 | Shielded type data cable for mechanical arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420265269.8U CN203882722U (en) | 2014-05-22 | 2014-05-22 | Shielded type data cable for mechanical arm |
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| Publication Number | Publication Date |
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| CN203882722U true CN203882722U (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420265269.8U Active CN203882722U (en) | 2014-05-22 | 2014-05-22 | Shielded type data cable for mechanical arm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051073A (en) * | 2014-05-22 | 2014-09-17 | 江苏亨通线缆科技有限公司 | Shielding type data cable for mechanical arm |
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2014
- 2014-05-22 CN CN201420265269.8U patent/CN203882722U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051073A (en) * | 2014-05-22 | 2014-09-17 | 江苏亨通线缆科技有限公司 | Shielding type data cable for mechanical arm |
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