CN202480905U - Welding joint of steel aluminium composite conductor rail - Google Patents
Welding joint of steel aluminium composite conductor rail Download PDFInfo
- Publication number
- CN202480905U CN202480905U CN2011204652241U CN201120465224U CN202480905U CN 202480905 U CN202480905 U CN 202480905U CN 2011204652241 U CN2011204652241 U CN 2011204652241U CN 201120465224 U CN201120465224 U CN 201120465224U CN 202480905 U CN202480905 U CN 202480905U
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- joint
- rail
- steel
- aluminium
- steel aluminium
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Abstract
The utility model relates to a welding joint of a steel aluminium composite conductor rail, belonging to a device for rail transit power supply. Aluminium sections 7 and 8 adjacent to a steel aluminium composite rail are connected via a welding seam 5 and a fishplate 2 at the part of a common joint, and stainless steels 9 and 10 adjacent to the steel aluminium composite rail are connected to form the common joint to the welding joint via welding seam 4. The welding joint improves the reliability of a power supply system, the gap of the joint cannot become larger, a current collector is free of electric sparks while passing through the welding joint, and the joint has less transition resistance at the two ends, and is low in temperature rise and less in electric energy consumption.
Description
Technical field
The utility model relates to a kind of weldering knot joint of steel-aluminium composite conducting rail, belongs to the equipment of track traffic power supply usefulness.
Background technology
Before the utility model was made, the 3rd rail electric power system of urban track traffic adopted steel-aluminium composite conducting rail in prior art, and for example patent is the steel-aluminium composite conducting rail of the antivibration of 200720150918.x, about every long 15mm.Two side waists in ordinary couplings during on-site installation are respectively put a fish plate; 4 bolts pass the hole of fish plate and the compound web of the rail of steel aluminium portion; The adjacent compound rail of steel aluminium and end bends, expansion pipe are linked up, electricly go up series connection, be combined into direct current supply line.The installation and connection method joint transition resistance of this simple dependence fish plate is bigger than normal; Temperature rise is higher; Long-term vibration back bolt and nut unclamps, and the probability that lost efficacy in the joint increases, and the slit of joint can increase in the progressive formation to winter in summer; Electro spark strengthened when shoegear passed through joint, and reliability reduces.
Summary of the invention
The purpose of the utility model is to overcome the compound rail of above-mentioned steel aluminium and relies on fish plate to install and the shortcoming of appearance merely, provides a kind of compound rail of steel aluminium joint transition resistance that makes little, and temperature rise is low, the weldering knot joint that the gap of joint can not change.
The utility model solves the technical scheme that its problem adopted: except that doing the ordinary couplings with two fish plates; Further the corrosion-resistant steel with the compound rail of adjacent steel aluminium links up with the direct current argon tungsten-arc welding, and connects to one around two fish tail utmost points with the I-shape aluminium section bar of ac tungsten inert gases welding and the compound rail of left and right sides steel aluminium respectively.
Compared with present technology the utility model has the following advantages:
1, the utility model connects reliably the compound rail of steel aluminium: the ordinary couplings of fish plate improves an one magnitude with the parallelly connected system dependability that makes of weldering knot joint.Usually have 6 compound rails of steel aluminium and 1 expansion pipe and 2 end bends at least in each anchor section of steel-aluminium composite conducting rail, therefore produce 8 ordinary couplings at least, need, 32 cover bolt and nut fasteners with 16 fish plates.These series connected 8 weldering knot joints have become 9 parts into two parts after adopting the utility model, maybe movable part and assembly quantity reduce closely 9/10ths, so the system dependability of this anchor section has improved a nearly one magnitude again.
Can not increase by electro spark again when 2, the shoegear of electric locomotive is tied joint through the weldering of the utility model of the compound rail of steel aluminium, saves energy, the generation of no peak pulse electric current has improved galvanic quality of power supply.
3, the utility model can not be uneven the joint again, and no step has been eliminated the shoegear brush in the possibility that the ordinary couplings place often breaks, and has reduced the automotive servicing cost of upkeep, has improved the vehicle attendance rate.
4, the joint two ends transition resistance of the utility model reduces more than 20% than the simple fish plate bonded assembly all-in resistance of leaning on, thereby can save energy more than 20%.
5, the utility model makes the gap numerical value between the both ends of the surface of adjacent steel aluminium composite conducting rail constant, can not change with seasonal variation.The stability that has kept system's power supply.
Description of drawings
Fig. 1 is the lateral plan of the utility model.
Fig. 2 is the transverse sectional view A-A of the utility model Fig. 1.
Fig. 3 is the cutaway view B-B of the line of centers longitudinally of the bright Fig. 2 of utility model.
The specific embodiment
Following the utility model combines the embodiment in the accompanying drawing to further describe:
In Fig. 1, the left side is the compound rail 1 of steel aluminium, and the right is the compound rail 6 of steel aluminium; The centre is a fish plate 2; Fish plate 2 is arranged 4 cover bolt and nut fasteners 3 along line of centers, in the middle of the compound rail 1 of left and right sides steel aluminium and 6 the bottom contact surface stainless steel weld joint 4 is arranged, and around fish plate, has one to enclose aluminum alloy weld seam 5.Fish plate 2 and 4 cover bolt and nut fasteners are formed the ordinary couplings of the compound rail 1 of steel aluminium and 6.Stainless steel weld joint 4 becomes ordinary couplings into weldering with 5 of aluminum alloy weld seams and ties joint.Stainless steel weld joint 4 adopts the direct current argon tungsten-arc welding, and aluminum alloy weld seam 5 adopts ac tungsten inert gases welding, and weld seam 4 connects to one with the corrosion-resistant steel of the compound rail 1 of steel aluminium and 6, and weld seam 5 connects to one with the aluminium section bar of the compound rail 1 of steel aluminium and 6.The welding rod of weld seam 4 is stainless, and the welding rod of weld seam 5 is aluminum alloys.Weld seam 4 polishes flat and polishes at postwelding, guarantees that the brush of shoegear smoothly passes through in the joint.Weld seam 4 and 5 can eliminate because the distortion of the compound rail body of steel aluminium and the crooked unfairness that produces at the ordinary couplings place avoid the brush of shoegear to receive step to impact the destruction that causes.
In Fig. 2, bolt and nut fastener 3 is clamped in the waist of the compound rail of steel aluminium with left and right sides fish plate 2, constitutes ordinary couplings.5 of weld seams fuse fish plate 2 and the compound rail 6 of steel aluminium, and fish plate 2 and the compound rail 1 of steel aluminium are fused, and fish plate 2 finally makes steel aluminium compound rail 1 and 6 in the left and right sides fuse.Even lay down bolt and nut fastener 3 this moment, weldering knot joint also can keep compound rail 1 of steel aluminium and 6 being connected under the sustained vibration condition reliably.
In Fig. 3, the 7th, the aluminium alloy extrusions of the compound rail 1 of steel aluminium, the 8th, the aluminium alloy extrusions of the compound rail 6 of steel aluminium, the 9th, the stainless steel layer of the compound rail 1 of steel aluminium, the 10th, the stainless steel layer of the compound rail 6 of steel aluminium.Pass 2 cover bolts 3 on the aluminium alloy extrusions 7, also pass 2 cover bolts 3 on the aluminium alloy extrusions 8.Stainless steel weld joint 4 fuses the stainless steel layer of the compound rail 1 of left and right sides steel aluminum steel aluminium and 6.
The many compound rails of steel aluminium of series connection and several expansion pipes constitute an anchor section in two end bends, and the weldering knot joint of the compound rail of steel aluminium makes this anchor section become the one unit of the 3rd rail supply line, and weldering knot joint has guaranteed that the height of the 3rd rail supply line is reliable.
Claims (1)
1. joint is tied in the weldering of a steel-aluminium composite conducting rail; Comprise the ordinary couplings of forming by fish plate and bolt and nut fastener; It is characterized in that the weldering knot joint that the compound rail of adjacent steel aluminium (1,6) is formed via the stainless steel weld joint (4) and the annular aluminum alloy weld seam (5) of straight line fuses; The corrosion-resistant steel (9,10) that stainless steel weld joint (4) goes up the compound rail of adjacent steel aluminium (1,6) as contact surface links up, and aluminum alloy weld seam (5) links up the conductive aluminum section bar (7,8) on the compound rail of adjacent steel aluminium (1,6) by fish plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204652241U CN202480905U (en) | 2011-11-22 | 2011-11-22 | Welding joint of steel aluminium composite conductor rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204652241U CN202480905U (en) | 2011-11-22 | 2011-11-22 | Welding joint of steel aluminium composite conductor rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202480905U true CN202480905U (en) | 2012-10-10 |
Family
ID=46955359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204652241U Expired - Lifetime CN202480905U (en) | 2011-11-22 | 2011-11-22 | Welding joint of steel aluminium composite conductor rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202480905U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490626A (en) * | 2011-11-22 | 2012-06-13 | 中铁建电气化局集团科技有限公司 | Welding joint of steel and aluminum composite conductor rails |
| CN110626218A (en) * | 2019-09-26 | 2019-12-31 | 中铁第四勘察设计院集团有限公司 | Seamless contact rail system and connection method of contact rail system |
-
2011
- 2011-11-22 CN CN2011204652241U patent/CN202480905U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490626A (en) * | 2011-11-22 | 2012-06-13 | 中铁建电气化局集团科技有限公司 | Welding joint of steel and aluminum composite conductor rails |
| CN110626218A (en) * | 2019-09-26 | 2019-12-31 | 中铁第四勘察设计院集团有限公司 | Seamless contact rail system and connection method of contact rail system |
| CN110626218B (en) * | 2019-09-26 | 2024-01-05 | 中铁第四勘察设计院集团有限公司 | Seamless contact rail system and connection method of contact rail system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |
|
| CX01 | Expiry of patent term |