CN203871005U - Servo cable suitable for drag chain system - Google Patents
Servo cable suitable for drag chain system Download PDFInfo
- Publication number
- CN203871005U CN203871005U CN201420288347.6U CN201420288347U CN203871005U CN 203871005 U CN203871005 U CN 203871005U CN 201420288347 U CN201420288347 U CN 201420288347U CN 203871005 U CN203871005 U CN 203871005U
- Authority
- CN
- China
- Prior art keywords
- signal
- layer
- drag chain
- shielding layer
- chain system
- 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.)
- Expired - Fee Related
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Abstract
Provided is a servo cable suitable for a drag chain system. The servo cable comprises an external sheath layer, an external shielding layer, an internal sheath layer, a signal pair unit, a filling reinforcing member and more than four power transmission units. The signal pair unit is formed by two identical signal transmission core wires via twisting. Any one of the signal transmission core wires is respectively formed in a way that a conductor is externally extruded with one insulating layer. The periphery of the signal pair unit is wrapped with a double-layer shielding layer. The signal pair unit and the power transmission units are distributed in a way of surrounding the filling reinforcing member. A soft shielding layer, the internal shielding layer and the external shielding layer are combined in the servo cable so that strong signal interference from all directions can be effectively prevented, leaked electromagnetic interference is reduced and information transmission is undifferentiated. Extrusion force in bending is buffered by the internal sheath layer. The overall internal transmission line is protected from being damaged in the use process of being in friction with the internal wall of the drag chain system by the double-layer structure of the internal sheath layer and the external sheath layer so that transmission of the overall line is more stable and the service life is substantially enhanced.
Description
Technical field:
The utility model relates to electricity field, relates in particular to cable, particularly a kind of servo cable that is suitable for drag chain system application.
Background technology:
Servomotor because it is quick on the draw, operates steadily, registration, play that moment is large, braking rapidly, support the use city and can realize the feature of intelligent closed-loop control with servo-driver or controller, be widely used in the fields such as numerical controlled machinery, steering wheel, modern logistics, industrial automation.The main distinction of servomotor and common electric machine is: in its rotating shaft, add an encoder sensing conversion element, the signal of telecommunication is changed into space rate and angular displacement signal, control forward and reverse, rotating speed and the motion of precision positioning machine tool.Therefore, the cable of controlling servomotor has two passages, one of them provides the large power supply transmission channel of moment of torsion for passage, another passage is controlled encoder signalling channel, in order to realize this two Channel Synchronous transmission, save cost and space, conventionally feed cable and signal cable are grouped together and form a comprehensive servomotor cable, because cable often should be in complicated circuit, so this cable possesses the Electromagnetic Compatibility of interior external shield simultaneously for this reason.In prior art; servomotor cable is that two transmission line simple laies in code device signal cable are arrived together; add the inner shield of one deck braiding copper wire composition; outside internal shield around last layer polyester band with protection; then form with four-core large power supply transmission unit and a packing set; the additional one deck belting layer of transmission unit of set, belting layer weaves the external shield of one deck copper wire composition outward, extrudes the plastic material of one deck PVC material outward with the transmission of protection whole piece circuit at outer shielding layer again.This servomotor cable; often because being subject to frequent bending motion and the extruding of drag chain; make the disconnected core of inner each transmission unit and cause electric property to open circuit to lose transfer function; move by bending and push simultaneously; interior belting layer and outer belting layer breakage are harassed interior outer shielding layer short circuit; lose and should have shielding effect, the plastic material that skin extrudes loses its protection effect because of the breakage that rubs for a long time of itself and drag chain inwall, and the useful life of whole piece circuit is lower.
Summary of the invention
：
Technical problem to be solved in the utility model is to provide a kind of servo cable that is suitable for drag chain system application, and the described this servo cable that is suitable for drag chain system application will solve in prior art transmission unit in servomotor cable, and easily disconnected core, the easy short circuit of interior outer shielding layer are harassed and the outer easily damaged technical problem of material that extrudes.
This servo cable that is suitable for drag chain system application of the present utility model, comprise external sheath layer, outer shielding layer, inner restrictive coating, signal is to unit, fill the power transmission unit of reinforcement and more than four number, wherein, described signal is formed by two identical signal transmission heart yearn pair twists unit, signal transmission heart yearn described in any one all each free electric conductor extrudes an insulating barrier formation in periphery, signal is coated with the soft screen of one deck to the periphery of unit, described soft screen is provided with an internal shield being made up of proof copper-wire braided outward again, the periphery of described internal shield is squeezed and is surrounded with an inner covering, power transmission unit described in any one all each free conducting element extrudes an insulating barrier formation in periphery, signal distributes around described filling reinforcement to unit and power transmission unit, signal to unit and power transmission unit all at described inner restrictive coating and fill between reinforcement, described outer shielding layer is arranged on the periphery of inner restrictive coating, described external sheath layer is arranged on the periphery of outer shielding layer.
Further, external sheath layer is coaxial with filling reinforcement.
Further, outer shielding layer is made up of proof copper-wire braided.
Further, inner restrictive coating is made up of soft material, and its thickness is greater than 0.8 millimeter.
Further, soft screen is moulded to be with by the polyester that is coated with aluminum metal and is formed.
Further, the proof copper-wire braided density in internal shield is greater than 85%.
Operation principle of the present utility model is: signal is formed by two identical signal transmission heart yearn pair twists unit, therefore transmits indifference information.The each free conducting element of individual signals transmission heart yearn extrudes a layer insulating outward and forms, the soft screen of twisted component wires outer cladding one deck, be the stable of twisted component wires structure, form again one barrier that the extraneous assorted letter of shielding disturbs, simultaneous buffering the extruding of internal shield when bending to signal transmission unit, make inner shield effect stable.The strong signal of internal shield shielding all directions that proof copper-wire braided forms disturbs, and guarantees high-frequency information stable transfer with the double shield structure that soft screen forms.The structure of inner covering protection internal shield follow-up combine with power unit together with time avoid destroying, keep the reliability of inner shield effect.Power transmission unit transmits single-phase electrical source of power, many power transmission unit transmission polyphase electric powers.Signal is to unit and the parallel extension of power transmission unit, and motor is driven and synchronizes with information control.Strengthen filling member in center, make cable structure rounding.Inner restrictive coating makes cable core structure more stable, prevents external shield and powerful power transmission unit short circuit, and the extruding force of outer shielding layer in the time that bending is moved in simultaneous buffering strengthened the stable effect of interior outer shielding layer, improves the reliable intensity of power unit transmission.Outer shielding layer forms the barrier of the electromagnetic interference that leaks.External sheath layer protection whole piece circuit is suitable for various installation environment requirements.
The utility model and prior art are compared, and its effect is actively with obvious.The utility model is combined in soft screen, internal shield and outer shielding layer in servo cable, the strong signal that has effectively prevented all directions disturbs, and reduced the electromagnetic interference that leaks, two identical signal transmission heart yearn pair twists are formed to signal to unit, communication indifference.Inner restrictive coating is made up of soft material; cushion the extruding force when bending; make interior outer shielding layer more stable; the double-decker of inner restrictive coating and external sheath layer also protect whole piece internal transmission circuit with drag chain system in wall friction use in avoid destroy; thereby make the transmission of whole piece circuit more stable, be significantly improved useful life.
Brief description of the drawings:
Fig. 1 is the radial section structural representation of the servo cable that is suitable for drag chain system application of the present utility model.
Embodiment
Embodiment 1:
As shown in Figure 1, the servo cable that is suitable for drag chain system application of the present utility model, comprise external sheath layer 1, outer shielding layer 2, inner restrictive coating 3, signal is to unit 4, fill the power transmission unit 6 of reinforcement 5 and more than four number, wherein, described signal is formed by two identical signal transmission heart yearn pair twists unit 4, signal transmission heart yearn described in any one all each free electric conductor extrudes an insulating barrier formation in periphery, signal is coated with the soft screen 7 of one deck to the periphery of unit 4, outside described soft screen 7, be provided with again an internal shield being formed by proof copper-wire braided 8, the periphery of described internal shield 8 is squeezed and is surrounded with an inner covering 9, power transmission unit 6 described in any one all each free conducting element 10 extrudes an insulating barrier 11 in periphery and forms, signal distributes around described filling reinforcement 5 to unit 4 and power transmission unit 6, signal to unit 4 and power transmission unit 6 all at described inner restrictive coating 3 and fill between reinforcement 5, described outer shielding layer 2 is arranged on the periphery of inner restrictive coating 3, described external sheath layer 1 is arranged on the periphery of outer shielding layer 2.
Further, external sheath layer 1 is coaxial with filling reinforcement 5.
Further, outer shielding layer 2 is made up of proof copper-wire braided.
Further, inner restrictive coating 3 is made up of soft material, and its thickness is greater than 0.8 millimeter.
Further, soft screen 7 is moulded to be with by the polyester that is coated with aluminum metal and is formed.
Further, the proof copper-wire braided density in internal shield 8 is greater than 85%.
The operation principle of the present embodiment is: signal is formed by two identical signal transmission heart yearn pair twists unit 4, therefore transmits indifference information.The each free conducting element of individual signals transmission heart yearn extrudes a layer insulating outward and forms, the soft screen 7 of twisted component wires outer cladding one deck, be the stable of twisted component wires structure, form again one barrier that the extraneous assorted letter of shielding disturbs, simultaneous buffering the extruding of internal shield 8 when bending to signal transmission unit, make inner shield effect stable.The internal shield 8 that proof copper-wire braided forms shields the strong signal of all directions and disturbs, and guarantees high-frequency information stable transfer with the double shield structure that soft screen 7 forms.The structure that inner covering 9 is protected internal shield 8 follow-up combine with power unit together with time avoid destroying, keep the reliability of inner shield effect.Power transmission unit 6 transmits single-phase electrical source of power, and many power transmission units 6 transmit polyphase electric power.Signal is to unit 4 and the parallel extension of power transmission unit 6, and motor is driven and synchronizes with information control.Strengthen filling member in center, make cable structure rounding.Inner restrictive coating 3 makes cable core structure more stable, prevent external shield and 6 short circuits of powerful power transmission unit, the extruding force of outer shielding layer 2 in the time that bending is moved in simultaneous buffering, has strengthened the stable effect of interior outer shielding layer 2, improves the reliable intensity of power unit transmission.Outer shielding layer 2 forms the barrier of the electromagnetic interference that leaks.External sheath layer 1 protects whole piece circuit to be suitable for various installation environment requirements.
Claims (6)
1. one kind is suitable for the servo cable of drag chain system application, comprise external sheath layer, outer shielding layer, inner restrictive coating, signal is to unit, fill the power transmission unit of reinforcement and more than four number, it is characterized in that: described signal is formed by two identical signal transmission heart yearn pair twists unit, signal transmission heart yearn described in any one all each free electric conductor extrudes an insulating barrier formation in periphery, signal is coated with the soft screen of one deck to the periphery of unit, described soft screen is provided with an internal shield being made up of proof copper-wire braided outward again, the periphery of described internal shield is squeezed and is surrounded with an inner covering, power transmission unit described in any one all each free conducting element extrudes an insulating barrier formation in periphery, signal distributes around described filling reinforcement to unit and power transmission unit, signal to unit and power transmission unit all at described inner restrictive coating and fill between reinforcement, described outer shielding layer is arranged on the periphery of inner restrictive coating, described external sheath layer is arranged on the periphery of outer shielding layer.
2. the servo cable that is suitable for drag chain system application as claimed in claim 1, is characterized in that: external sheath layer is coaxial with filling reinforcement.
3. the servo cable that is suitable for drag chain system application as claimed in claim 1, is characterized in that: outer shielding layer is made up of proof copper-wire braided.
4. the servo cable that is suitable for drag chain system application as claimed in claim 1, is characterized in that: inner restrictive coating is made up of soft material, and its thickness is greater than 0.8 millimeter.
5. the servo cable that is suitable for drag chain system application as claimed in claim 1, is characterized in that: soft screen is moulded band by the polyester that is coated with aluminum metal and formed.
6. the servo cable that is suitable for drag chain system application as claimed in claim 1, is characterized in that: the proof copper-wire braided density in internal shield is greater than 85%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420288347.6U CN203871005U (en) | 2014-05-30 | 2014-05-30 | Servo cable suitable for drag chain system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420288347.6U CN203871005U (en) | 2014-05-30 | 2014-05-30 | Servo cable suitable for drag chain system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871005U true CN203871005U (en) | 2014-10-08 |
Family
ID=51651930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420288347.6U Expired - Fee Related CN203871005U (en) | 2014-05-30 | 2014-05-30 | Servo cable suitable for drag chain system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203871005U (en) |
-
2014
- 2014-05-30 CN CN201420288347.6U patent/CN203871005U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20170530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |