CN201457114U - Ice coating preventing contact network lead - Google Patents
Ice coating preventing contact network lead Download PDFInfo
- Publication number
- CN201457114U CN201457114U CN2009201091623U CN200920109162U CN201457114U CN 201457114 U CN201457114 U CN 201457114U CN 2009201091623 U CN2009201091623 U CN 2009201091623U CN 200920109162 U CN200920109162 U CN 200920109162U CN 201457114 U CN201457114 U CN 201457114U
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- China
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- carbon fiber
- copper
- medium layer
- contact line
- conducting wire
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Abstract
The utility model discloses an ice coating preventing contact network lead, which comprises a carbon fiber centre body and a conductive medium layer coated outside the carbon fiber centre body, wherein the carbon fiber centre body can be a carbon fiber rod or a single-stranded carbon fiber bundle or a multi-strand carbon fiber bundle; the conductive medium layer is made from copper, aluminum, copper alloy, copper-silver alloy or aluminum alloy; the contact network lead has an integral annular structure; the carbon fiber centre body is positioned in the centre of the annular structure; the conductive medium layer is positioned at the outer part of the annular structure; and the upper half part of an outer ring is bilaterally symmetrically provided with two V-shaped nicks. The ice coating preventing contact network lead has the characteristics of high tensile strength, great elastic modulus, small temperature difference change and good flexibility, and particularly has an automatic-heating and ice coating preventing function.
Description
Technical field
The utility model relates to the electrification railway contact net lead, relates in particular to a kind of contact line conducting wire of anti-icing.
Background technology
The contact line conducting wire of existing electrified railway mainly contains the contact wire of forms such as aluminium Baogang, copper covered steel, yellow gold or fine copper.The lead of these materials does not have heating function, running into condensing gas or rain, snow, mist, haze at high and cold or subtropics monsoon climatic region freezes easily, by gravity makes the contact line conducting wire load increase the weight of or is overweight that the lead sag strengthens, and bow net cooperates parameter to affect adversely.Development along with high speed railway, contact system construction technology and material requirements at the higher level have been proposed, promptly need further to improve the tension force of contact wire, to improve stability, wave propagation speed and the locomotive current carrying quality of contact wire, require contact wire when having good electrical conductivity, also should have higher mechanical strength and softening resistance energy.
The utility model content
Technical problem to be solved in the utility model is, a kind of ice-coating-proof contact line conducting wire is provided, and the existing contact line conducting wire of solution can't be heated automatically, weight is big, the problem of intensity difference.
For solving the problems of the technologies described above, the utility model provides a kind of contact line conducting wire of anti-icing, and this contact line conducting wire comprises the carbon fiber centrosome, and is coated on the exterior conducting medium layer of carbon fiber centrosome.
Carbon fiber bundle that described carbon fiber centrosome is carbon fiber rod or sub-thread or multi-strand carbon fiber bundle.
Described conducting medium layer is copper, aluminium, copper alloy, yellow gold or aluminum alloy.
Described integral contact net lead is a loop configuration, and described carbon fiber centrosome is positioned at annular center, and described conducting medium layer is positioned at annular, outer, and has two V-notchs in 1/2nd top left-right symmetric of outer shroud.
The contact line conducting wire of anti-icing described in the utility model has the tensile strength height, and modulus of elasticity is big, and difference variation is little, and the characteristics that flexility is good, key are that it has the function of the anti-icing of automatic heating.The utility model has used electricity, calorifics and mechanics principle, can be so that this contact line conducting wire has good electric property, thermal property and mechanical property.It is convenient also to have construction, the characteristics that construction quality easily guarantees.
Description of drawings
Fig. 1 is the structural representation of the compound contact line conducting wire of a kind of copper-carbon fiber.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model is described in further detail below in conjunction with accompanying drawing.
The utility model provides a kind of contact line conducting wire of anti-icing, at existing aluminium Baogang, copper covered steel, yellow gold or fine copper contact wire do not have the shortcoming of heating function, this ice-coating-proof contact line conducting wire adopts copper-carbon fiber composite structure, the center is the carbon fiber centrosome, copper clad is in carbon fiber centrosome outside, when electric current passes through lead, carbon atom in the activation carbon fiber is done Brownian movement generation heat outer conducting medium is continued heating, thereby realized heating certainly anti-icing function. in addition, tensile strength of carbon fibers is more than 8-10 a times of common iron, modulus of elasticity is better than steel, has excellent creep-resistant property, corrosion stability and aseismicity; Carbon fiber is in light weight, and weight only is 1/5 of steel; The carbon fiber good toughness can be coiled, monovolume length 2000m and need not overlapping. and adopt the contact line conducting wire of copper-carbon fiber composite structure, it is convenient also to have a construction, the characteristics that construction quality easily guarantees.
As shown in Figure 1, the structural representation that has shown ice-coating-proof contact line conducting wire of the present utility model, wherein, comprise core component carbon fiber centrosome 2, be covered with conducting medium layer 1 in carbon fiber centrosome external packets, conducting medium layer 1 is a copper herein, also can be aluminium or copper alloy, aluminum alloy, yellow gold as required.Electric current by the time can form good thermal-protective coating to the conducting medium layer.
Described integral contact net lead is a loop configuration, and described carbon fiber centrosome is positioned at annular center, and described conducting medium layer is positioned at annular, outer, and has two V-notchs in 1/2nd top left-right symmetric of outer shroud.
The coating form of this conducting medium layer carbon coated fibrillar center body meets the surface action principle on the one hand, under same sectional area situation, and the current capacity maximum; On the other hand, it is big that the contact line conducting wire of this clad structure has strain insulator intensity, and the technology characteristic of simple can make full use of existing contact wire production technology and equipment.
Described carbon fiber can be for carbon fiber rod, also can be the carbon fiber bundle or the multi-strand carbon fiber bundle of sub-thread.Carbon fiber has conduction, heating function, the tensile strength height, and flexility is good, and coefficient of thermal expansion and contraction is little.Under the power frequency state, meet the characteristic of metal surface surface action conduction, do not influence the performance of contact wire conduction.
When the conducting medium layer is copper, copper-carbon fiber contact wire, the high strength of steel, high temperature resistant softening mechanical characteristics and copper conductivity water temperature and depth height, electric property that contact resistance is little on performance, have been had both, thereby have the conduction efficiency height, tensile strength is big, light weight, anti abrasive characteristics adapt to the requirement of train high-speed cruising.
When making the above-mentioned compound contact line conducting wire of copper-carbon fiber, can adopt continuously extruded coating method production technology.
Mould used when extruding coats is the same with traditional copper covered steel contact line conducting wire, does not need the remanufacturing mould.In the actual production, key is to control the deformation temperature of intensity, squeegee roller rotating speed, carbon fiber preheating temperature and copper of mould well.These need come adjustment data according to the cross section of lead.
Continuously extruded is to utilize friction force to push as power.On the basis of continuous extruding technology method, the boots seat is placed the top of squeegee roller, allow heart yearn to pass die cavity, thereby metal is coated on the carbon fiber heart yearn directly or indirectly, extrude from die orifice simultaneously with heart yearn, copper bar and carbon fiber rod enter and finish copper clad carbon fiber process in the continuously extruded coating machine through pretreatment.
In extruding coating process, note following some:
(1) deformation temperature of control copper.The plasticity of copper in the time of 750～900 ℃ is best, therefore, can make copper be easy to moulding in this range of temperatures, can reduce deformation force again.In order to guarantee in die cavity, to reach this temperature, will design suitable effective friction length.
(2) control squeegee roller rotating speed.The squeegee roller rotating speed is determining coating speed.Can increase nonaffine deformation degree and distortion heat but rotating speed is too high, thereby reduce die life.
(3) control carbon fiber preheating temperature.The carbon fiber preheating can prevent that the temperature drop of copper in the die cavity from increasing extrusion torque too soon.
(4) control mould strength.Copper temperature when distortion is very high, and resistance of deformation is also very big, and pushes the coating process and carry out continuously, and mold cools down is difficulty relatively.Therefore, the hot strength to mould has proposed very high requirement.Can guarantee that producing the durable again mould of acceptable product is successful key.
The above only is embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation. and all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present utility model.
Claims (5)
1. the contact line conducting wire of an anti-icing is characterized in that, this contact line conducting wire comprises the carbon fiber centrosome, and is coated on the exterior conducting medium layer of carbon fiber centrosome.
2. contact line conducting wire as claimed in claim 1 is characterized in that, carbon fiber bundle that described carbon fiber centrosome is carbon fiber rod or sub-thread or multi-strand carbon fiber bundle.
3. contact line conducting wire as claimed in claim 1 is characterized in that, described conducting medium layer is copper, aluminium, copper alloy, yellow gold or aluminum alloy.
4. contact line conducting wire as claimed in claim 2 is characterized in that, described conducting medium layer is copper, aluminium, copper alloy, yellow gold or aluminum alloy.
5. as contact line conducting wire as described in each among the claim 1-4, it is characterized in that, described integral contact net lead is a loop configuration, described carbon fiber centrosome is positioned at annular center, described conducting medium layer is positioned at annular, outer, and has two V-notchs in 1/2nd top left-right symmetric of outer shroud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201091623U CN201457114U (en) | 2009-06-15 | 2009-06-15 | Ice coating preventing contact network lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201091623U CN201457114U (en) | 2009-06-15 | 2009-06-15 | Ice coating preventing contact network lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201457114U true CN201457114U (en) | 2010-05-12 |
Family
ID=42384467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201091623U Expired - Fee Related CN201457114U (en) | 2009-06-15 | 2009-06-15 | Ice coating preventing contact network lead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201457114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244070A (en) * | 2015-10-23 | 2016-01-13 | 北京交通大学 | Fiber reinforcement copper substrate composite contact line |
-
2009
- 2009-06-15 CN CN2009201091623U patent/CN201457114U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244070A (en) * | 2015-10-23 | 2016-01-13 | 北京交通大学 | Fiber reinforcement copper substrate composite contact line |
| CN105244070B (en) * | 2015-10-23 | 2024-05-10 | 中国铁路总公司 | Contact wire of fiber reinforced copper-based composite material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20120615 |