CN214607174U - Wear-resisting corrosion-resistant high-strength copper alloy dropper wire - Google Patents
Wear-resisting corrosion-resistant high-strength copper alloy dropper wire Download PDFInfo
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- CN214607174U CN214607174U CN202120865202.8U CN202120865202U CN214607174U CN 214607174 U CN214607174 U CN 214607174U CN 202120865202 U CN202120865202 U CN 202120865202U CN 214607174 U CN214607174 U CN 214607174U
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Abstract
The utility model relates to a wear-resistant corrosion-resistant high-strength copper alloy dropper line, which is formed by twisting at least two strands of composite wires, wherein each strand of composite wires is formed by twisting at least one body monofilament wire and at least one reinforced monofilament wire; or the copper alloy dropper wire is formed by twisting at least one local wire and at least one reinforcing wire, and each main body wire is formed by twisting at least two reinforcing monofilament wires; the body monofilament line comprises a copper alloy monofilament doped with rare earth elements, a polyamide fiber layer and a chromium nitride layer are sequentially arranged on the outer surface of the copper alloy monofilament doped with rare earth elements from inside to outside, and the reinforced monofilament line is a stainless steel wire with an anticorrosive layer on the outer surface. The utility model discloses a copper alloy dropper line not only tensile strength is big, the pliability is good, has the wearability, and corrosion resisting property is better.
Description
Technical Field
The utility model belongs to the technical field of electronic railway connecting net, concretely relates to copper alloy dropper line of wear-resisting corrosion-resistant high strength.
Background
With the continuous development of the operation mileage and the continuous improvement of the operation speed of the electrified railway in China, the safe and reliable operation of the contact network becomes the most important task of the electrified railway. The hanger is the transmitter of force and vibration between the carrier cable and the contact wire, one end is connected with the copper alloy stranded wire carrier cable, and the other end is connected with the copper alloy contact wire. The hanger wire is a main body part which plays a role in connection and current carrying in the whole hanger, and is also an assembly which is most frequently damaged and broken. If the train breaks in actual operation, the current collection condition between the bow nets can be influenced, and even if the broken integral dropper hangs below the contact line in serious conditions, a bow hitting event occurs when the train passes through, and the operation safety is influenced.
In the service process, the breakage of the hanger string is mainly caused by corrosion and abrasion, particularly, the crossing environment of the high-speed railway is complex, the corrosion of the hanger string can be accelerated under severe environments such as acid, alkali, sunshine, high temperature and the like, the mechanical strength of the hanger string is reduced to a certain extent, and the breakage of the hanger string is further caused; the flexibility, strength and fatigue resistance of the dropper are poor, and the dropper is easy to break after repeated bending.
Chinese patent CN 205871786U discloses a composite dropper wire and an electrified railway contact net dropper, the composite dropper wire is formed by twisting at least two strands of composite wires, each strand of composite wire is formed by twisting at least one body monofilament wire and at least one reinforcing monofilament wire; or the composite dropper line is formed by twisting at least one local line and at least one reinforcing line, and each body line is formed by twisting at least two reinforcing monofilament lines; the dropper wire in the patent improves the comprehensive tensile strength, but does not consider the wear resistance and the corrosion resistance of the dropper wire.
Disclosure of Invention
The utility model aims at providing a copper alloy dropper line of wear-resisting corrosion-resistant high strength, not only tensile strength is big, the pliability is good, has the wearability, and corrosion resisting property is better.
The utility model provides a technical scheme that above-mentioned problem adopted does: the copper alloy dropper line comprises a copper alloy dropper line body, wherein the copper alloy dropper line body is formed by twisting at least two strands of composite lines, each strand of composite line is formed by twisting at least one body monofilament line and at least one reinforcing monofilament line, the body monofilament line comprises a copper alloy monofilament doped with rare earth elements, a polyamide fiber layer and a chromium nitride layer are sequentially arranged on the outer surface of the copper alloy monofilament doped with the rare earth elements from inside to outside, and the reinforcing monofilament line is a stainless steel wire with an anticorrosive layer arranged on the outer surface.
Preferably, the anticorrosive layer is a tin-plated layer.
Preferably, the thickness of the tin coating is 0.5-2 μm.
Preferably, the thickness of the polyamide fiber layer is larger than that of the chromium nitride layer.
Preferably, the rare earth element is yttrium or strontium.
Preferably, the diameter of the body monofilament line is the same as the diameter of the reinforcing monofilament line.
The utility model provides a copper alloy dropper line of wear-resisting corrosion-resistant high strength, copper alloy dropper line includes copper alloy dropper line body, copper alloy dropper line body is formed by the transposition of at least one body line and at least one enhancement line, every strand the body line is formed by the transposition of two piece at least body monofilament lines, every strand the enhancement line is formed by two piece at least enhancement monofilament lines transposition, body monofilament line includes rare earth element's copper alloy monofilament, rare earth element's copper alloy monofilament's surface from interior to exterior is equipped with polyamide fiber layer, chromium nitride layer in proper order, it is equipped with the stainless steel wire of anticorrosive coating for the surface to strengthen the monofilament line.
Preferably, the anticorrosive layer is a tin-plated layer.
Preferably, the thickness of the tin coating is 0.5-2 μm.
Preferably, the thickness of the polyamide fiber layer is larger than that of the chromium nitride layer.
Preferably, the rare earth element is yttrium or strontium.
Preferably, the diameter of the body monofilament line is the same as the diameter of the reinforcing monofilament line.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses a copper alloy dropper line not only tensile strength is big, the pliability is good, has the wearability, and corrosion resisting property is better, has prolonged the life of dropper line, has reduced the operation maintenance cost. The body monofilament line in the dropper is a copper alloy monofilament doped with rare earth elements, so that the lattice distortion of a copper alloy matrix can be reduced, the grain structure can be refined, the mechanical property and the conductivity of the copper alloy monofilament can be further improved, a polyamide fiber layer with mechanical strength, toughness and corrosion resistance and a chromium nitride layer with corrosion resistance and wear resistance are sequentially arranged on the outer surface of the body monofilament line from inside to outside, and the strength, wear resistance and corrosion resistance of the body monofilament line are greatly enhanced; the reinforced monofilament line in the dropper is a stainless steel wire, and an anti-corrosion tinning layer is arranged on the outer surface of the reinforced monofilament line; so that the body monofilament line and the reinforced monofilament line are twisted in different structures to form the dropper line with wear resistance, corrosion resistance and high strength.
Drawings
Fig. 1 is a schematic cross-sectional view of the monofilament line of the middle body of the present invention.
Fig. 2 is a schematic cross-sectional view of the reinforced monofilament line of the present invention.
Fig. 3 is a schematic cross-sectional view of a copper alloy dropper wire according to embodiment 1 of the present invention.
Fig. 4 is a schematic cross-sectional view of a copper alloy dropper wire according to embodiment 2 of the present invention.
Wherein: 1 is a copper alloy dropper wire body, 2 is a body monofilament wire, 2-1 is a copper alloy monofilament wire doped with rare earth elements, 2-2 is a polyamide fiber layer, 2-3 is a chromium nitride layer, 3 is a reinforced monofilament wire, 3-1 is a stainless steel wire, and 3-2 is a tin-plated layer.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1 and 2, the cross-sectional view of the medium body monofilament line of the present invention and the cross-sectional view of the medium reinforcing monofilament line of the present invention are illustrated.
Example 1
As shown in fig. 3, a schematic cross-sectional view of a copper alloy dropper line according to embodiment 1 of the present invention is shown.
A wear-resistant corrosion-resistant high-strength copper alloy dropper wire comprises a copper alloy dropper wire body 1, wherein the copper alloy dropper wire body 1 is formed by stranding seven composite wires (six composite wires surround one composite wire); each composite wire is formed by twisting six body monofilament wires 2 and one reinforcing monofilament wire 3, the reinforcing monofilament wire 3 is positioned at the center of each composite wire, and the diameters of the body monofilament wires 2 and the reinforcing monofilament wires 3 are the same.
The body monofilament line 2 comprises a copper alloy monofilament 2-1 doped with rare earth elements, the outer surface of the copper alloy monofilament 2-1 doped with rare earth elements is sequentially provided with a polyamide fiber layer 2-2 and a chromium nitride layer 2-2 from inside to outside, the thickness of the polyamide fiber layer 2-2 is larger than that of the chromium nitride layer 2-3, and the reinforced monofilament line 3 is a stainless steel wire 3-1 provided with a tin coating 3-2 with the thickness of 1 mu m on the outer surface; wherein the rare earth element is yttrium.
Example 2
As shown in fig. 4, a schematic cross-sectional view of a copper alloy dropper line according to embodiment 2 of the present invention is shown.
A wear-resistant corrosion-resistant high-strength copper alloy dropper wire comprises a copper alloy dropper wire body 1, wherein the copper alloy dropper wire body 1 is formed by twisting six strands of body wires and one strand of strengthening wire, and the strengthening wire is positioned at the center of the copper alloy dropper wire body 1; the body wire is formed by twisting seven basic monofilament wires 2, the reinforced wire is formed by twisting seven reinforced monofilament wires 3, and the diameters of the body monofilament wires 2 and the reinforced monofilament wires 3 are the same.
The body monofilament line 2 is a rare earth element-doped copper alloy monofilament 2-1, the outer surface of the rare earth element-doped copper alloy monofilament 2-1 is sequentially provided with a polyamide fiber layer 2-2 and a chromium nitride layer 2-3 from inside to outside, the thickness of the polyamide fiber layer 2-2 is larger than that of the chromium nitride layer 2-3, and the reinforced monofilament line 3 is a stainless steel wire 3-1, the outer surface of which is provided with a tin coating 3-2 with the thickness of 1 mu m; wherein the rare earth element is strontium.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (10)
1. A wear-resisting corrosion-resistant high strength copper alloy dropper line, the copper alloy dropper line includes copper alloy dropper line body (1), its characterized in that: the copper alloy dropper body (1) is formed by twisting at least two strands of composite wires, each strand of composite wire is formed by twisting at least one body monofilament line (2) and at least one reinforcing monofilament line (3), the body monofilament line (2) comprises a copper alloy monofilament (2-1) doped with rare earth elements, a polyamide fiber layer (2-2) and a chromium nitride layer (2-3) are sequentially arranged on the outer surface of the copper alloy monofilament (2-1) doped with the rare earth elements from inside to outside, and the reinforcing monofilament line (3) is a stainless steel wire (3-1) with an anticorrosive layer arranged on the outer surface.
2. The wear-resistant corrosion-resistant high-strength copper alloy dropper line of claim 1, wherein: the anti-corrosion layer is a tin plating layer (3-2).
3. The wear-resistant corrosion-resistant high-strength copper alloy dropper line of claim 2, wherein: the thickness of the tin coating (3-2) is 0.5-2 μm.
4. The wear-resistant corrosion-resistant high-strength copper alloy dropper line of claim 1, wherein: the thickness of the polyamide fiber layer (2-2) is larger than that of the chromium nitride layer (2-3).
5. The wear-resistant corrosion-resistant high-strength copper alloy dropper line of claim 1, wherein: the rare earth element is yttrium or strontium.
6. The utility model provides a wear-resisting corrosion-resistant high strength's copper alloy dropper line, copper alloy dropper line includes copper alloy dropper line body, its characterized in that: the copper alloy dropper wire body (1) is formed by twisting at least one strand of body wire and at least one strand of reinforcing wire, wherein each strand of body wire is formed by twisting at least two body monofilament lines (2), each strand of reinforcing wire is formed by twisting at least two reinforcing monofilament lines (3), each body monofilament line (2) comprises a copper alloy monofilament (2-1) doped with rare earth elements, a polyamide fiber layer (2-2) and a chromium nitride layer (2-3) are sequentially arranged on the outer surface of the copper alloy monofilament (2-1) doped with the rare earth elements from inside to outside, and the reinforcing monofilament lines (3) are stainless steel wires (3-1) of which the outer surfaces are provided with anticorrosive layers.
7. The wear and corrosion resistant high strength copper alloy dropper line of claim 6, wherein: the anti-corrosion layer is a tin plating layer (3-2).
8. The wear and corrosion resistant high strength copper alloy dropper line of claim 7 wherein: the thickness of the tin coating (3-2) is 0.5-2 μm.
9. The wear and corrosion resistant high strength copper alloy dropper line of claim 6, wherein: the thickness of the polyamide fiber layer (2-2) is larger than that of the chromium nitride layer (2-3).
10. The wear and corrosion resistant high strength copper alloy dropper line of claim 6, wherein: the rare earth element is yttrium or strontium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120865202.8U CN214607174U (en) | 2021-04-26 | 2021-04-26 | Wear-resisting corrosion-resistant high-strength copper alloy dropper wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120865202.8U CN214607174U (en) | 2021-04-26 | 2021-04-26 | Wear-resisting corrosion-resistant high-strength copper alloy dropper wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214607174U true CN214607174U (en) | 2021-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120865202.8U Active CN214607174U (en) | 2021-04-26 | 2021-04-26 | Wear-resisting corrosion-resistant high-strength copper alloy dropper wire |
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| Country | Link |
|---|---|
| CN (1) | CN214607174U (en) |
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2021
- 2021-04-26 CN CN202120865202.8U patent/CN214607174U/en active Active
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