CN110745034A - Special-shaped steel belt and steel-aluminum composite conductor rail - Google Patents
Special-shaped steel belt and steel-aluminum composite conductor rail Download PDFInfo
- Publication number
- CN110745034A CN110745034A CN201911200442.XA CN201911200442A CN110745034A CN 110745034 A CN110745034 A CN 110745034A CN 201911200442 A CN201911200442 A CN 201911200442A CN 110745034 A CN110745034 A CN 110745034A
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- Prior art keywords
- steel
- rail
- steel strip
- aluminum
- arc
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 112
- 239000010959 steel Substances 0.000 title claims abstract description 112
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 83
- 239000002131 composite material Substances 0.000 title claims abstract description 32
- 239000004020 conductor Substances 0.000 title claims abstract description 32
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000004411 aluminium Substances 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 16
- 239000010935 stainless steel Substances 0.000 abstract description 16
- 210000003781 tooth socket Anatomy 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000013329 compounding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005493 welding type Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/30—Power rails
- B60M1/302—Power rails composite
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention discloses a special-shaped steel strip and a steel-aluminum composite conductor rail, wherein the section of the steel strip is of a Pi-shaped structure and comprises a steel strip body and two supporting legs; the two supporting legs are symmetrically located below the steel strip body, and arc grooves are formed in the outer sides of the supporting legs along the length direction of the steel strip. The special-shaped steel band is used for a steel-aluminum composite conductor rail, and the width of the stainless steel band is the same as that of the aluminum rail, so that the effective contact surface width of the stainless steel band and a collector shoe is increased, the effective current-supplying surface ratio is increased, the reliable current collection of the collector shoe is ensured, and the standard requirement of the tensile resistance of the stainless steel band and the aluminum rail along the line direction of the composite conductor rail and the standard requirement of the pull-out resistance of the stainless steel band and the aluminum rail along the vertical line direction are met.
Description
Technical Field
The invention belongs to the technical field of urban rail transit, and particularly relates to a special-shaped steel belt and a steel-aluminum composite conductor rail.
Background
The steel-aluminum composite conductor rail is a power supply rail in an urban rail transit traction network and is an integral body formed by compounding a stainless steel belt and an aluminum rail on a contact surface.
Referring to fig. 1 and fig. 2, the conventional steel-aluminum composite conductor rail includes a riveting type and a welding type, but the width of the aluminum rail after being composited is not consistent with the actual effective surface width of the stainless steel band due to the composite process requirement of the riveting or welding type, and the requirement cannot be met well when the installation limit of the line equipment is small.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a special-shaped steel belt and a steel-aluminum composite conductor rail. The technical problem to be solved by the invention is realized by the following technical scheme:
the section of the special-shaped steel belt is of a Pi-shaped structure and comprises a steel belt body and two supporting legs; the two supporting legs are symmetrically located below the steel strip body, and arc grooves are formed in the outer sides of the supporting legs along the length direction of the steel strip.
In one embodiment of the invention, first tooth grooves are uniformly distributed on the outer side of the lower end of the supporting leg along the length direction of the steel strip, and the first tooth grooves are communicated with the arc grooves.
In one embodiment of the invention, second tooth grooves are uniformly distributed on the lower surfaces of two side edges of the steel belt body along the length direction of the steel belt.
In an embodiment of the present invention, the first tooth groove and the second tooth groove are each any one of a triangle, a rectangle, and a trapezoid.
A steel-aluminum composite conductor rail comprises an aluminum rail and a steel belt, wherein two grooves are symmetrically formed in two sides of the rail top of the aluminum rail along the length direction, and arc bulges are symmetrically formed on the outer side walls of the two grooves along the length direction; the section of the steel belt is in a Pi shape and comprises a steel belt body and two supporting legs; the two support legs are symmetrically positioned below the steel strip body, and arc grooves are formed in the outer sides of the two support legs along the length direction of the steel strip; the steel band lock is in the railhead of aluminium rail, and its two the supporting leg inserts respectively in the twice recess to make through the extrusion the railhead both sides of aluminium rail the circular arc arch imbeds in the circular arc recess, will the aluminium rail with steel band machinery complex is as an organic whole.
In one embodiment of the invention, the widths of the aluminum rail and the steel belt are equal, the radius of the arc bulge is slightly larger than that of the arc groove, first tooth sockets are uniformly distributed on the outer side of the lower end of the support leg along the length direction of the steel belt, and the first tooth sockets are communicated with the arc groove; when the arc protrusion is embedded into the arc groove, the lower part of the arc protrusion is embedded into the first tooth groove.
In one embodiment of the invention, the widths of the aluminum rail and the steel strip are equal, and the height of the rail top of the aluminum rail at the outer part of the groove is slightly larger than that of the inner part of the groove; second tooth grooves are uniformly distributed on the lower surfaces of two side edges of the steel belt body along the length direction of the steel belt; when the arc protrusion is embedded into the arc groove, the top of the aluminum rail is positioned at the outer part of the groove and embedded into the second tooth groove.
In an embodiment of the present invention, the first tooth groove and the second tooth groove are each any one of a triangle, a rectangle, and a trapezoid.
The invention has the beneficial effects that:
1. the invention adopts a steel belt structure with a Pi-shaped toothed slot, and meets the tensile resistance standard requirement between the stainless steel belt and the aluminum rail along the line direction of the composite conductor rail and the pull-out resistance standard requirement between the stainless steel belt and the aluminum rail along the vertical line direction;
2. the width of the stainless steel strip is the same as that of the aluminum rail, so that the effective contact surface width of the stainless steel strip and the collector shoe is increased, the effective current-donating surface area ratio is increased, and the reliable current collection of the collector shoe is ensured;
3. the stainless steel band and the aluminum rail are compounded in a bilateral rolling mode or an extrusion mode, so that the production efficiency can be further improved, and the compounding quality is ensured.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural view of a conventional riveting-type composite conductor rail;
fig. 2 is a schematic structural view of a conventional welded composite conductor rail;
FIG. 3 is a schematic structural view of the profiled strip of example 1;
FIG. 4 is a schematic structural view of the profiled strip of example 2;
FIG. 5 is a schematic structural view of an I-shaped steel-aluminum composite conductor rail according to example 3;
FIG. 6 is a schematic structural view of the "C" -shaped steel-aluminum composite conductor rail of example 4;
FIG. 7 is a schematic structural view of an "I" shaped steel-aluminum composite conductor rail of example 5;
FIG. 8 is a schematic structural view of the "C" -shaped steel-aluminum composite conductor rail of example 6.
Description of reference numerals:
1-a steel strip body; 2-supporting legs; 3-arc groove; 4-a first tooth slot; 5-a second tooth socket; 6-aluminum rail; 7-a steel belt; 8-a groove; 9-arc bulge.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.
Example 1
Referring to fig. 3, an embodiment of the invention provides a special-shaped steel strip, the section of which is of a pi-shaped structure, and the special-shaped steel strip mainly comprises a steel strip body 1 and two supporting legs 2, the two supporting legs 2 are symmetrically positioned below the steel strip body 1, and arc grooves 3 are formed in the outer sides of the two supporting legs 2 along the length direction of the steel strip.
Furthermore, first tooth spaces 4 are uniformly distributed on the outer side of the lower end of the supporting leg 2 along the length direction of the steel strip, and the first tooth spaces 4 are communicated with the arc grooves 3.
Further, the first tooth grooves 4 may have any one of a triangular shape, a rectangular shape, and a trapezoidal shape.
The steel strip is integrally formed in a hot rolling mode, and the production efficiency is improved.
Example 2
Referring to fig. 4, an embodiment of the invention provides a special-shaped steel strip, the section of which is of a pi-shaped structure, and the special-shaped steel strip mainly comprises a steel strip body 1 and two supporting legs 2, the two supporting legs 2 are symmetrically positioned below the steel strip body 1, and arc grooves 3 are formed in the outer sides of the two supporting legs 2 along the length direction of the steel strip.
Further, second tooth grooves 5 are uniformly distributed on the lower surfaces of the two sides of the steel belt body 1 along the length direction of the steel belt.
Further, the second teeth grooves 5 may have any one of a triangular shape, a rectangular shape, and a trapezoidal shape.
The steel strip can be integrally formed in a hot rolling mode, so that the production efficiency is improved; of course, other forming methods can be adopted.
Example 3
Referring to fig. 3 and 5, an embodiment of the invention provides an i-shaped steel-aluminum composite conductor rail, which includes an i-shaped aluminum rail 6 and a steel strip 7, and is characterized in that two grooves 8 are symmetrically formed on two sides of a rail top of the aluminum rail 6 along a length direction, and arc protrusions 9 are symmetrically formed on outer side walls of the two grooves 8 along the length direction; the section of the steel belt 7 is pi-shaped and comprises a steel belt body 1 and two supporting legs 2; the two support legs 2 are symmetrically positioned below the steel strip body 1, and arc grooves 3 are formed in the outer sides of the two support legs 2 along the length direction of the steel strip 7; the steel belt 7 is buckled at the rail top of the aluminum rail 6, the two supporting legs 2 are respectively inserted into the two grooves 8, the arc protrusions 9 are embedded into the arc grooves 3 by extruding the two sides of the rail top of the aluminum rail 6, and the aluminum rail 6 and the steel belt 7 are mechanically combined into a whole.
This circular arc recess 3 can make steel band 7 more firm with the connection of aluminium rail 6 along perpendicular line direction, and the mode that circular arc recess 3 connected steel band 7 and aluminium rail 6 simultaneously is more convenient than the mode that riveting or welding made steel band 7 and aluminium rail 6 be connected.
It should be noted that the specific parameters of the arc groove 3 are obtained according to a test standard of the composite conductor rail, and the test is based on whether the pullout resistance between the steel strip 7 and the aluminum rail 6 along the line direction can meet the requirement, and the embodiment of the invention is not specifically limited herein.
In the examples of the present invention and the following examples, the steel belt 7 is a stainless steel belt.
Furthermore, the widths of the aluminum rail 6 and the steel belt 7 are equal, the radius of the arc protrusion 9 is slightly larger than that of the arc groove 3, first tooth grooves 4 are uniformly distributed on the outer side of the lower end of the support leg 2 along the length direction of the steel belt, and the first tooth grooves 4 are communicated with the arc groove 3; the arc protrusion 9 is inserted into the arc groove 3, and simultaneously, the lower portion of the arc protrusion 9 is inserted into the first tooth groove 4.
The widths of the aluminum rail 6 and the steel belt 7 are equal, so that the effective contact surface width of the steel belt 7 and the collector shoe can be increased, the effective current-donating surface area ratio is increased, and the reliable current collection of the collector shoe is ensured.
This first tooth's socket 4 can prevent that steel band 7 from following 6 longitudinal sliding of aluminium rail, slides along the line direction promptly, and steel band 7 slides along the line direction with aluminium rail 6 and can cause two compound conductor rail joint's steel band body 1 to appear great seam, causes collecting shoe to receive the current not smooth even damage easily, can produce great noise when collecting shoe passes through simultaneously.
Further, the first tooth grooves 4 may have any one of a triangular shape, a rectangular shape, and a trapezoidal shape.
Furthermore, the width and the depth of the first tooth spaces 4 and the distance between the adjacent first tooth spaces 4 are obtained according to a test of a composite conductor rail test standard, the test is based on whether the tensile resistance between the steel belt 7 and the aluminum rail 6 along the line direction can meet the requirement, if the parameter setting is unreasonable, the combination performance of the steel belt 7 and the aluminum rail 6, namely the tensile resistance between the steel belt 7 and the aluminum rail 6 along the line direction cannot meet the standard requirement, the steel belt 7 and the aluminum rail 6 are easy to cause the dislocation caused by the translation of the end face due to different expansion coefficients when the steel belt 7 and the aluminum rail 6 expand with heat and contract with cold, and the normal power supply of the composite conductor rail is finally influenced.
Furthermore, the width of the tooth socket can be 1-2 mm, the depth is 0.5-2.5 mm, and the distance between two adjacent first tooth sockets 4 is 3-5 mm.
Example 4
The steel-aluminum composite conductor rail in the embodiment of the invention has the same structure as the steel-aluminum composite conductor rail in the embodiment 3, and the only difference is that the aluminum rail 6 in the embodiment of the invention is in a C shape, and the structural schematic diagram thereof refers to fig. 3 and 6.
Example 5
Referring to fig. 4 and 7, an embodiment of the invention provides an i-shaped steel-aluminum composite conductor rail, which includes an i-shaped aluminum rail 6 and a steel strip 7, and is characterized in that two grooves 8 are symmetrically formed on two sides of a rail top of the aluminum rail 6 along a length direction, and arc protrusions 9 are symmetrically formed on outer side walls of the two grooves 8 along the length direction; the section of the steel belt 7 is pi-shaped and comprises a steel belt body 1 and two supporting legs 2; the two support legs 2 are symmetrically positioned below the steel strip body 1, and arc grooves 3 are formed in the outer sides of the two support legs 2 along the length direction of the steel strip; the steel belt 7 is buckled at the rail top of the aluminum rail 6, the two supporting legs 2 are respectively inserted into the two grooves 8, the arc protrusions 9 are embedded into the arc grooves 3 by extruding the two sides of the rail top of the aluminum rail 6, and the aluminum rail 6 and the steel belt 7 are mechanically combined into a whole.
Further, the widths of the aluminum rail 6 and the steel strip 7 are equal, and the height of the rail top of the aluminum rail 6 at the outer part of the groove 8 is slightly larger than the height of the inner part of the groove 8; the lower surfaces of two side edges of the steel belt body 1 are uniformly distributed with second tooth grooves 5 along the length direction of the steel belt; the arc bulge 9 is embedded into the arc groove 3, and simultaneously, the rail top of the aluminum rail 6 is positioned at the outer part of the groove 8 and is embedded into the second tooth groove 5.
Note that the second tooth grooves 5 function in the same manner as the first tooth grooves 4.
Further, the second teeth grooves 5 may have any one of a triangular shape, a rectangular shape, and a trapezoidal shape.
Example 6
The steel-aluminum composite conductor rail in the embodiment of the invention has the same structure as the steel-aluminum composite conductor rail in the embodiment 5, and the only difference is that the aluminum rail 6 in the embodiment of the invention is in a C shape, and the structural schematic diagram thereof refers to fig. 4 and 8.
The steel strip 7 described in examples 3 and 4 of the present invention is the deformed steel strip of example 1 of the present invention; the steel strip 7 described in examples 5 and 6 of the present invention is the deformed steel strip of example 2 of the present invention.
Because the two sides of the composite steel belt of the existing riveting mode are required to be provided with holes, and the efficiency of riveting and compositing is directly reduced by the steel belt drilling or punching process. According to the invention, the steel belt and the aluminum rail are directly compounded in a rolling or extruding manner, so that the process of drilling or punching is omitted, the production efficiency is improved, and the compounding quality is ensured.
The invention adopts a steel belt structure with a section of pi-shaped toothed grooves, and meets the tensile resistance standard requirement of the stainless steel belt and the aluminum rail along the line direction of the conductor rail and the pull-out resistance standard requirement of the stainless steel belt and the aluminum rail along the vertical line direction.
The width of the stainless steel strip is the same as that of the aluminum rail, so that the effective contact surface width of the stainless steel strip and the collector shoe is increased, the effective current-donating surface area ratio is increased, and the reliable current collection of the collector shoe is ensured.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (8)
1. The special-shaped steel belt is characterized in that the section of the steel belt is of a Pi-shaped structure and comprises a steel belt body and two supporting legs; the two supporting legs are symmetrically located below the steel strip body, and arc grooves are formed in the outer sides of the supporting legs along the length direction of the steel strip.
2. The special-shaped steel strip as claimed in claim 1, wherein first tooth grooves are uniformly distributed on the outer side of the lower end of the support leg along the length direction of the steel strip, and the first tooth grooves are communicated with the arc grooves.
3. The profiled steel strip as claimed in claim 1, wherein the lower surfaces of the two sides of the steel strip body are uniformly provided with second tooth grooves along the length direction of the steel strip.
4. The profiled steel strip defined in claim 2 or claim 3 wherein the first and second troughs are each any one of triangular, rectangular and trapezoidal.
5. A steel-aluminum composite conductor rail comprises an aluminum rail and a steel belt, and is characterized in that two sides of the rail top of the aluminum rail are symmetrically provided with two grooves along the length direction, and the outer side walls of the two grooves are symmetrically provided with arc bulges along the length direction; the section of the steel belt is in a Pi shape and comprises a steel belt body and two supporting legs; the two support legs are symmetrically positioned below the steel strip body, and arc grooves are formed in the outer sides of the two support legs along the length direction of the steel strip; the steel band lock is in the railhead of aluminium rail, and its two the supporting leg inserts respectively in the twice recess to make through the extrusion the railhead both sides of aluminium rail the circular arc arch imbeds in the circular arc recess, will the aluminium rail with steel band machinery complex is as an organic whole.
6. The steel-aluminum composite conductor rail according to claim 5, wherein the aluminum rail and the steel strip are equal in width, the radius of the arc protrusion is slightly larger than that of the arc groove, first tooth grooves are uniformly distributed on the outer side of the lower end of the support leg along the length direction of the steel strip, and the first tooth grooves are communicated with the arc groove; when the arc protrusion is embedded into the arc groove, the lower part of the arc protrusion is embedded into the first tooth groove.
7. The steel-aluminum composite conductor rail according to claim 5, wherein the aluminum rail and the steel strip are equal in width, and the height of the aluminum rail top at the outer part of the groove is slightly larger than the height of the inner part of the groove; second tooth grooves are uniformly distributed on the lower surfaces of two side edges of the steel belt body along the length direction of the steel belt; when the arc protrusion is embedded into the arc groove, the top of the aluminum rail is positioned at the outer part of the groove and embedded into the second tooth groove.
8. The steel-aluminum composite conductor rail according to claim 6 or 7, wherein the first and second tooth grooves are any one of triangular, rectangular and trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911200442.XA CN110745034A (en) | 2019-11-29 | 2019-11-29 | Special-shaped steel belt and steel-aluminum composite conductor rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911200442.XA CN110745034A (en) | 2019-11-29 | 2019-11-29 | Special-shaped steel belt and steel-aluminum composite conductor rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110745034A true CN110745034A (en) | 2020-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911200442.XA Pending CN110745034A (en) | 2019-11-29 | 2019-11-29 | Special-shaped steel belt and steel-aluminum composite conductor rail |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1042545A (en) * | 1911-12-26 | 1912-10-29 | Charles W Gamwell | Rail construction. |
| GB493745A (en) * | 1937-02-23 | 1938-10-13 | Eugene Hamilius | Improvements in and relating to conductor rails |
| FR1013001A (en) * | 1950-02-17 | 1952-07-22 | Bi-metallic conductor rail for contact line and manufacturing process | |
| US3341669A (en) * | 1964-03-11 | 1967-09-12 | Porter Co Inc H K | Current conductor rail system |
| US6547050B1 (en) * | 1998-10-09 | 2003-04-15 | Paul Vahle Gmbh & Co. Kg | Conductor rail for supplying power and a production method therefor |
| CN101229783A (en) * | 2008-02-15 | 2008-07-30 | 成都金和工贸有限公司 | Section-steel tape and manufacturing method |
| CN205890602U (en) * | 2016-08-09 | 2017-01-18 | 中铁第四勘察设计院集团有限公司 | Compound power supply rail that magnetic suspension engineering used |
| CN107444197A (en) * | 2017-07-28 | 2017-12-08 | 成都金和工贸有限公司 | Method for manufacturing conductor rail and brush face |
| CN107650738A (en) * | 2017-10-23 | 2018-02-02 | 中铁电气化局集团宝鸡器材有限公司 | A kind of steel-aluminum conductor rail and manufacture method |
| CN207594757U (en) * | 2017-08-29 | 2018-07-10 | 宝鸡市博通机电设备有限公司 | A kind of composite conductor rail of steel and aluminum new steel belt |
| CN208036008U (en) * | 2018-01-26 | 2018-11-02 | 汕头比亚迪实业有限公司 | Conductor rail and the track with it and sit-astride Rail Transit System |
| CN208291021U (en) * | 2018-06-08 | 2018-12-28 | 洛阳固岳轨道科技有限公司 | A kind of conductor rail wear body |
| CN211252282U (en) * | 2019-11-29 | 2020-08-14 | 中铁高铁电气装备股份有限公司 | Steel strip and steel-aluminum composite conductor rail |
-
2019
- 2019-11-29 CN CN201911200442.XA patent/CN110745034A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1042545A (en) * | 1911-12-26 | 1912-10-29 | Charles W Gamwell | Rail construction. |
| GB493745A (en) * | 1937-02-23 | 1938-10-13 | Eugene Hamilius | Improvements in and relating to conductor rails |
| FR1013001A (en) * | 1950-02-17 | 1952-07-22 | Bi-metallic conductor rail for contact line and manufacturing process | |
| US3341669A (en) * | 1964-03-11 | 1967-09-12 | Porter Co Inc H K | Current conductor rail system |
| US6547050B1 (en) * | 1998-10-09 | 2003-04-15 | Paul Vahle Gmbh & Co. Kg | Conductor rail for supplying power and a production method therefor |
| CN101229783A (en) * | 2008-02-15 | 2008-07-30 | 成都金和工贸有限公司 | Section-steel tape and manufacturing method |
| CN205890602U (en) * | 2016-08-09 | 2017-01-18 | 中铁第四勘察设计院集团有限公司 | Compound power supply rail that magnetic suspension engineering used |
| CN107444197A (en) * | 2017-07-28 | 2017-12-08 | 成都金和工贸有限公司 | Method for manufacturing conductor rail and brush face |
| CN207594757U (en) * | 2017-08-29 | 2018-07-10 | 宝鸡市博通机电设备有限公司 | A kind of composite conductor rail of steel and aluminum new steel belt |
| CN107650738A (en) * | 2017-10-23 | 2018-02-02 | 中铁电气化局集团宝鸡器材有限公司 | A kind of steel-aluminum conductor rail and manufacture method |
| CN208036008U (en) * | 2018-01-26 | 2018-11-02 | 汕头比亚迪实业有限公司 | Conductor rail and the track with it and sit-astride Rail Transit System |
| CN208291021U (en) * | 2018-06-08 | 2018-12-28 | 洛阳固岳轨道科技有限公司 | A kind of conductor rail wear body |
| CN211252282U (en) * | 2019-11-29 | 2020-08-14 | 中铁高铁电气装备股份有限公司 | Steel strip and steel-aluminum composite conductor rail |
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Application publication date: 20200204 |