CN205959633U - Damping enhancement mode wire with overlap span - Google Patents
Damping enhancement mode wire with overlap span Download PDFInfo
- Publication number
- CN205959633U CN205959633U CN201620798838.4U CN201620798838U CN205959633U CN 205959633 U CN205959633 U CN 205959633U CN 201620798838 U CN201620798838 U CN 201620798838U CN 205959633 U CN205959633 U CN 205959633U
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- Prior art keywords
- wire
- diameter steel
- diameter copper
- thick
- steel wire
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- 238000013016 damping Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 80
- 239000010959 steel Substances 0.000 claims abstract description 80
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 20
- 238000005260 corrosion Methods 0.000 claims description 3
- 235000014593 oils and fats Nutrition 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 10
- 239000010949 copper Substances 0.000 abstract 4
- 229910052802 copper Inorganic materials 0.000 abstract 4
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 19
- 239000004020 conductor Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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Abstract
The utility model provides a damping enhancement mode wire with overlap span has realized the overlap span between steel core and the aluminium alloy layer through special construction's steel core, has strengthened the damping characteristic of wire, has weakened the influence that breeze vibration brought. Damping enhancement mode wire with overlap span includes the steel core that 7 different diameter copper wires strand to reach the aluminium alloy layer with the steel core concentric stranding, the cross section outside of the steel core after will stranding is connected in order to form elliptical section, and wherein, 2 thick diameter copper wires are placed respectively in the both ends of elliptical section major axis, well diameter copper wire is placed in the nodical department of elliptical section major axis with the minor axis, and tangent respectively with 2 thick diameter copper wires, 4 thin two liang of a set of the placing respectively between 2 thick diameter copper wires of diameter copper wire of root, every thin diameter copper wire respectively in its adjacent thick diameter copper wire in and the diameter copper wire tangent for formation overlap span structure between the inlayer of thin diameter copper wire and multilayer aluminium alloy layer.
Description
Technical field
This utility model is related to overhead power transmission wire field, and has overlap span more particularly, to a kind of
Improvement of damping type wire.
Background technology
Aerial condutor can vibrate under wind action, common vibration mode have aeolian vibration, subspan oscillation and
Wave three kinds, wherein aeolian vibration is a kind of vibration mode that occurrence scope is the widest, the persistent period is the longest.Aeolian vibration is easily drawn
Rise wire fatigue stranded, be circuit design and must issues that need special attention in running.
Large crossing projects have special significance in power transmission sequence, and because stringing is high, air-flow is more uniform than lower, therefore easily
In producing aeolian vibration, large-span conductors intensity is high, runs stress greatly, self-damping is little, and absorption wind power is big, and aeolian vibration is strong
Strong.The fundamental vibration frequency of wiring system is very low, and the frequency facing first order mode is sufficiently close to, and is chronically at resonance state, vibrationproof difficulty
Greatly.Large crossing projects wire generally adopts the gapless steel core aluminum alloy stranded wire of closing lay, and its self-damping is relatively small, averagely
Run stress and be typically not greater than 22% σb(σbFor wire breaking stress), otherwise aeolian vibration can be exceeded.The average operation of wire should
Power is primarily limited to the self-damping performance of wire, if the self-damping performance of wire can be improved, can be using higher average fortune
Row tension force, the sag of wire can accordingly reduce, and tower height accordingly lowers, and construction investment reduces therewith.
Content of the invention
For solving the above problems, the utility model proposes a kind of improvement of damping type wire with overlap span.Described
There is the improvement of damping type wire of overlap span, including：Steel core and the multilamellar aluminium alloy layer with steel core concentric stranding, its feature
It is：Described steel core is formed by 7 galvanized strand wires are stranded, thin including 2 thick diameter steel wires, 1 middle diameter steel wire and 4
Diameter steel wire, and described 7 galvanized strand wires are attached to form elliptical section with outside cross section after stranded for the layer,
Wherein, 2 thick diameter steel wires are respectively placed in two ends of elliptical section major axis and tangent with the innermost layer of multilamellar aluminium alloy layer；
Middle diameter steel wire is placed on the point of intersection of elliptical section major axis and short axle, and tangent respectively with 2 thick diameter steel wires；4
Thin diameter steel wire is individually positioned between 2 thick diameter steel wires for one group two-by-two, and every thin diameter steel wire is adjacent thick respectively at it
Diameter steel wire and middle diameter steel wire is tangent so that thin form overlap span between diameter steel wire and the innermost layer of multilamellar aluminium alloy layer
Structure.
Preferably, described multilamellar aluminium alloy layer is the loop configuration stranded by many aluminium alloy molded line.
Preferably, anti-corrosion oils and fatss are filled at described overlap span structure.
Preferably, the diameter with diameter greater than middle diameter steel wire of described thick diameter steel wire, the diameter of described middle diameter steel wire
Diameter more than thin diameter steel wire.
Brief description
By reference to the following drawings, illustrative embodiments of the present utility model can be more fully understood by：
Fig. 1 is the steel core section structural representation according to this utility model preferred embodiment；
With the conductor cross-section structural representation of utility model preferred embodiment according to Fig. 2.
Specific embodiment
With reference now to accompanying drawing, introduce illustrative embodiments of the present utility model, however, this utility model can be with many
Different forms is implementing, and is not limited to embodiment described herein, provides these embodiments to be in order at large and complete
Open this utility model entirely, and fully pass on scope of the present utility model to person of ordinary skill in the field.For
Term in the illustrative embodiments being illustrated in the accompanying drawings is not to restriction of the present utility model.In the accompanying drawings, identical
Cells/elements use identical reference.
Unless otherwise stated, term (inclusion scientific and technical terminology) used herein has to person of ordinary skill in the field
Common understand implication.Further it will be understood that the term being limited with the dictionary that is usually used is it should be understood to and it
The linguistic context of association area has consistent implication, and is not construed as Utopian or excessively formal meaning.
Fig. 1 is the steel core section structural representation according to the preferred embodiment of the present invention.As shown in figure 1, the steel core 100 of wire
Formed with layer is stranded by 7 different galvanized strand wires of diameter, and stranded after be connected outside steel strand wires cross section, formed ellipse
Circular cross-section.Preferably, described 7 different galvanized strand wires of diameter include 2 thick 101,1 middle diameter steel wires of diameter steel wire
102 and 4 thin diameter steel wires 103, wherein 2 thick diameter steel wires 101 are respectively placed in the two ends of elliptical section major axis；In
Diameter steel wire 102 is placed on the point of intersection of elliptical section major axis and short axle, and tangent respectively with 2 thick diameter steel wires 101；
4 thin diameter steel wires 103 are individually positioned between 2 thick diameter steel wires 101 for one group two-by-two, and every thin diameter steel wire 103 is respectively
Tangent in its adjacent thick diameter steel wire 101 and middle diameter steel wire 102.
With the conductor cross-section structural representation of invention preferred embodiment according to Fig. 2.There is the improvement of damping of overlap span
Type wire 200 is formed by steel core and multilamellar aluminium alloy layer concentric stranding, and wherein steel core is formed by 7 galvanized strand wires are stranded,
Including 2 thick 201,1 middle diameter steel wires 202 of diameter steel wire and 4 thin diameter steel wires 203 and 7 galvanized strand wires are same
The outside of the cross section after layer is stranded is attached to form elliptical section as shown in Figure 1.Preferably, 2 thick diameter steel
Line 201 is respectively placed in two ends of elliptical section major axis and tangent with the innermost layer of multilamellar aluminium alloy layer；Middle diameter steel wire 202
It is placed on the point of intersection of elliptical section major axis and short axle, and tangent respectively with 2 thick diameter steel wires 201；4 thin diameter steel
Line 203 is individually positioned between 2 thick diameter steel wires 201 for one group two-by-two, and every thin diameter steel wire 203 is adjacent thick respectively at it
Diameter steel wire 201 and middle diameter steel wire 202 tangent so that thin shape between diameter steel wire 203 and the innermost layer of multilamellar aluminium alloy layer
The intersegmental gap structure of composition.
Preferably, every layer of aluminium alloy layer of wire is all the loop configuration stranded by many aluminium alloy molded line 204.
Preferably, formed between thin diameter steel wire 203 and the innermost layer of multilamellar aluminium alloy layer and fill out at overlap span structure
Fill anti-corrosion oils and fatss, to reduce the abrasion of interlayer strands, the service life of extension lead.
Preferably, the diameter with diameter greater than middle diameter steel wire 202 of described thick diameter steel wire 201, described middle diameter steel wire
202 diameter with diameter greater than thin diameter steel wire 203.
This utility model achieves the overlap span between steel core and aluminium alloy layer by special structure of steel pole design, makes
Obtain wire in vibration because the presence interlayer strands in gap can occur mutually to collide, thus consuming substantial amounts of energy.Identical
Wind energy effect under, the improvement of damping of wire in this utility model, during use, oscillation intensity substantially reduces, realize suppression wire micro-
The purpose that wind shake is moved, and then in actual track, can accordingly can be subtracted using higher average running tension, the vertical arc of wire
Little, tower height accordingly lowers, and construction investment reduces therewith.
This utility model is described by reference to a small amount of embodiment.However, known in those skilled in the art,
As subsidiary Patent right requirement is limited, except this utility model others disclosed above embodiments equally fall
In the range of this utility model.
Normally, all terms using in the claims are all solved in the usual implication of technical field according to them
Release, unless in addition clearly defined wherein.All of reference "/described/be somebody's turn to do [device, assembly etc.] " is all opened ground
It is construed at least one of described device, assembly etc. example, unless otherwise expressly specified.Any method disclosed herein
Step all need not be run with disclosed accurate order, unless explicitly stated otherwise.
Claims (4)
1. a kind of improvement of damping type wire with overlap span, including：Steel core and the multilayer aluminum with steel core concentric stranding close
Layer gold it is characterised in that：Described steel core is formed by 7 galvanized strand wires are stranded, including 2 thick diameter steel wires, 1 middle diameter steel
Line and 4 thin diameter steel wires, and described 7 galvanized strand wires are attached with outside cross section after stranded for the layer to be formed
Elliptical section, wherein, 2 thick diameter steel wires be respectively placed in elliptical section major axis two ends and with multilamellar aluminium alloy layer
Innermost layer is tangent；Middle diameter steel wire is placed on the point of intersection of elliptical section major axis and short axle, and divides with 2 thick diameter steel wires
Not tangent；4 thin diameter steel wires are individually positioned between 2 thick diameter steel wires for one group two-by-two, every thin diameter steel wire respectively at
Its adjacent thick diameter steel wire and middle diameter steel wire tangent so that thin shape between diameter steel wire and the innermost layer of multilamellar aluminium alloy layer
The intersegmental gap structure of composition.
2. wire according to claim 1 is it is characterised in that described multilamellar aluminium alloy layer is to be twisted by many aluminium alloy molded line
The loop configuration closed.
3. wire according to claim 1 is it is characterised in that fill anti-corrosion oils and fatss at described overlap span structure.
4. wire according to claim 1 it is characterised in that described thick diameter steel wire with diameter greater than middle diameter steel wire
Diameter, the diameter with diameter greater than thin diameter steel wire of described middle diameter steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620798838.4U CN205959633U (en) | 2016-07-26 | 2016-07-26 | Damping enhancement mode wire with overlap span |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620798838.4U CN205959633U (en) | 2016-07-26 | 2016-07-26 | Damping enhancement mode wire with overlap span |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205959633U true CN205959633U (en) | 2017-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620798838.4U Active CN205959633U (en) | 2016-07-26 | 2016-07-26 | Damping enhancement mode wire with overlap span |
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| CN (1) | CN205959633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128619A (en) * | 2016-07-26 | 2016-11-16 | 中国电力科学研究院 | A kind of improvement of damping type wire with overlap span and improvement of damping method |
-
2016
- 2016-07-26 CN CN201620798838.4U patent/CN205959633U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128619A (en) * | 2016-07-26 | 2016-11-16 | 中国电力科学研究院 | A kind of improvement of damping type wire with overlap span and improvement of damping method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |