CN109747429A - Bipolar rigid contact net formula traffic power supply system - Google Patents
Bipolar rigid contact net formula traffic power supply system Download PDFInfo
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- CN109747429A CN109747429A CN201711065375.6A CN201711065375A CN109747429A CN 109747429 A CN109747429 A CN 109747429A CN 201711065375 A CN201711065375 A CN 201711065375A CN 109747429 A CN109747429 A CN 109747429A
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- servo
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- rigid
- power supply
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- 230000005611 electricity Effects 0.000 claims abstract description 42
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000012212 insulator Substances 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 7
- 230000005404 monopole Effects 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 14
- 229910052799 carbon Inorganic materials 0.000 description 14
- 239000004020 conductor Substances 0.000 description 14
- 239000000725 suspension Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention belongs to traffic for electrical domain, more particularly to bipolar rigid contact net formula traffic power supply system, including servo-actuated bow pedestal, it is connected to the servo-actuated bow arm of servo-actuated bow pedestal, elasticity is taken turns and be fixed on to elasticity at the top of servo-actuated bow arm by electricity wheel top and with elasticity by the rigid third rail that contacts of electricity wheel by electricity, by developing a kind of bipolar rigid contact net formula traffic power supply system, so that track train is obtained continual and steady electric current supply, ensure surrounding traffic safety.
Description
Technical field
The invention belongs to traffic for electrical domain more particularly to bipolar rigid contact net formula traffic power supply system.
Background technique
Rail traffic is a kind of in the way of track train progress personnel's transport.Current system is obtained according to track train
Difference, current track traffic power supply mainly include overhead contact line power supply and conductor rail power two ways.Overhead contact line
The contact line of power supply is located at vehicle up direction, is supported by pillar, carrier cable, dropper etc., the pantograph at the top of track train
Carbon slipper contacted with contact line obtain electric current；The conductor rail and attachment of conductor rail power supply are located at vehicle bottom side, by exhausted
Edge bracket is supported conductor rail and attachment, and the carbon slipper of the collector shoe of track train side contacts acquirement electricity with conductor rail
Stream.Overhead contact line power supply is divided into rigid suspension OCS power supply and rigid contact net power supply again.Conductor rail power supply is divided into contact
Touch power supply is powered and is flanked in power supply, lower contact.Either overhead contact line power supply or conductor rail power supply, common trait
All it is that the carbon slipper of pantograph or the carbon slipper surface of collector shoe are in contact with contact line or conductor rail outer surface, is rubbed by sliding
It wipes, so that electric energy is obtained, driving track train movement.
The carbon slipper of current overhead contact line power supply and conductor rail power supply, the carbon slipper of pantograph or collector shoe respectively with
Carbon slipper is pressed onto contact line or contact by the elastic mechanism in pantograph or collector shoe by the contact of contact line or conductor rail
On rail, carbon slipper and contact line or conductor rail are a kind of relationship of relative sliding contact between each other at work.Due to sliding
It rubs big to carbon slipper and contact line or conductor rail damage comparison, needs to regularly replace carbon slipper.There are one sliding contacts
Problem is exactly that the carbon dust environmental pollution of carbon slipper abrasion is bigger, and is easy to cause line short.
Rigid suspension OCS is since (such as strong wind, which causes contact line to shake excessive, sleet icing, to be caused for installation accuracy, natural conditions
Can not be by electricity), the factors such as train vibration caused by track unevenness influenced, between pantograph carbon slide and overhead contact line
There is very big fluctuation in contact force, unstable so as to cause current carrying quality, generate arc erosion overhead contact line and pantograph etc.
Accident influences traffic safety.In conductor rail power supply mode, there is also current carrying quality shakinesses between collector shoe carbon slipper and conductor rail
Fixed phenomenon, and collector shoe generates impact with end bends, so that starting arc, leads to ablation end when by fracture
Elbow and collector shoe.The shortcomings that can avoid rigid suspension OCS if using rigid contact net power supply.
In addition, the urban transportation is mostly flowed back by rail now, the stray electrical current generated therewith is also
It injures very serious.Burn into equipment gold of the stray electrical current to the burn into armored concrete metallic structures of rail and its attachment
Belong to the electrochemical corrosion that shell and other underground metal pipelines generate, i.e. stray current corrosion, also referred to as stray current corrosion.For miscellaneous
The scheme for dissipating the prevention and treatment of electrolytic corrosion is also very much, and for example rationally setting traction substation, Traction networks are walked using two-side feeding, reinforcement
The insulation against ground of row rail, setting of current drainage cabinet etc..But scheme construction cost is very high, and can only play the role of improvement, it can not
Thoroughly prevent stray current corrosion.The traction rail and return current rail of 4th rail telegram in reply system use metal rail, and resistance is much smaller than traveling
Rail resistance, so potential difference very little；The insulating support of 4th rail and the bracket of common 4th rail are similar, so transition resistance is very
Greatly.Traction rail is responsible for providing electric energy incessantly to locomotive, and return current rail is connected with electric substation's cathode cabinet, formed one completely to
The circuit of locomotive power supply.Stray electrical current is not present since return current rail thoroughly insulate with other facilities such as railway roadbeds in four rail power supply systems,
Also it is just not required to consider further that measure and the facility of anti-stray electrical current, is scheme that is optimal, putting things right once and for all.
Summary of the invention
The technical problem to be solved by the present invention is to overcoming the deficiencies in the prior art, a kind of be in rolling contact is provided
The bipolar rigid contact net formula traffic power supply system that mode is powered and can be avoided rigid suspension OCS for electric defect.
The present invention is to be achieved by the following technical programs:
Bipolar rigid contact net formula traffic power supply system, including servo-actuated bow pedestal, are connected to the servo-actuated bow of servo-actuated bow pedestal
Elasticity is taken turns and are fixed on to arm, the elasticity at the top of servo-actuated bow arm by electricity wheel top and with elasticity by the rigidity that contacts of electricity wheel by electricity
Third rail.
The servo-actuated bow pedestal is equipped with servo-actuated bow arm connection frame, and the servo-actuated bow arm connection frame is perpendicular to rigid third rail
Position is adjustable on extending direction, and servo-actuated bow arm is articulated with servo-actuated bow arm connection frame one end, and elasticity can be passed through edge by the height of electricity wheel
The tilt angle that hinged shaft adjusts servo-actuated bow arm is adjusted.
The servo-actuated bow the middle of the base is equipped with the adjusting screw rod being arranged along its width direction, and servo-actuated bow pedestal side is fixed with
The support rod parallel with adjusting screw rod, the servo-actuated bow arm connection frame bottom side are fixed with the screw thread with adjusting screw rod cooperation
Set, the other side and support rod socket connect, and described adjusting screw rod one end is connected with adjustment gear, and adjustment gear side is equipped with and it
The adjusting motor of cooperation.
The servo-actuated bow arm connection frame is fixed with adjusting cylinder, and the movable end for adjusting cylinder is connect with servo-actuated bow arm.
The rigidity third rail is bipolar rigid third rail, and bipolar rigidity third rail includes that two monopoles arranged side by side are rigid
Property third rail.
The bipolar rigid third rail is fixed by bipolar rigid third rail mounting assembly installation, the bipolar rigidity transmission of electricity
Rail mounting assembly includes third rail insulator, platform sling and pressing plate on the downside of third rail insulator, the bipolar rigidity transmission of electricity
For rail clip between platform sling and pressing plate, platform sling and pressing plate are fixed on third rail insulator by the fixing bolt across middle part.
The sides adjacent of two monopole rigidity third rails of the bipolar rigid third rail is correspondingly arranged the fastening block part of integrally connected,
Pressing plate two sides respectively correspond fastening block part and are provided with card slot.
There are two the elasticity is set by the corresponding bipolar rigid third rail of electricity wheel, two elasticity are passed through wheel by between electricity wheel wheel shaft
The connection of axis insulator.
Wheel body of the elasticity by electricity wheel including wheel shaft and set on wheel shaft periphery, card has damping steel wire between wheel shaft and wheel body
Ring.
The elasticity is by bearing fit at the top of electricity wheel wheel shaft and servo-actuated bow arm.
The beneficial effects of the present invention are:
By developing a kind of bipolar rigid contact net formula traffic power supply system, track train is set to obtain continual and steady
Electric current supply, ensures surrounding traffic safety.
Detailed description of the invention
Fig. 1 is entirety perspective view of the invention.
Fig. 2 is servo-actuated bow of the invention and servo-actuated bow arm schematic perspective view.
Fig. 3 is servo-actuated bow of the invention and servo-actuated bow arm side structure schematic view.
Fig. 4 is mounting assembly cross section structure schematic diagram of the invention.
Fig. 5 is that elasticity of the invention is taken turns external structure schematic diagram by electricity.
Fig. 6 is elasticity of the invention by electric wheel cross section structural schematic diagram.
In figure: 1. servo-actuated bow pedestals, 2. servo-actuated bow arms, 3. elasticity are taken turns by electricity, 4. rigid third rails, 5. servo-actuated bow arm connections
Frame, 6. adjusting screw rods, 7. support rods, 8. thread bush, 9. adjustment gears, 10. adjust motor, and 11. adjust cylinder, 12. third rails
Insulator, 13. platform slings, 14. pressing plates, 15. fixing bolts, 16. fastening block parts, 17. wheel bodys, 18. wheel shafts, 19. damping steel wire rings,
20. wheel shaft insulator.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, with reference to the accompanying drawing and most
The present invention is described in further detail for good embodiment.
As shown, the present invention includes servo-actuated bow pedestal 1, it is connected to the servo-actuated bow arm 2 of servo-actuated bow pedestal, is set to servo-actuated bow
Elasticity at the top of arm by electricity wheel 3 and is fixed on elasticity by electricity wheel top and with elasticity by the rigid third rail 4 that contacts of electricity wheel.
Rigid third rail is mounted on above train, is contacted with rigid third rail by electricity by elasticity by electricity wheel, can
It avoids rigid suspension OCS for electric defect, and is powered by way of being in rolling contact.
Height and relative position of the elasticity by electricity wheel can be can control by servo-actuated bow arm so that elasticity by electricity wheel along
Bipolar rigidity third rail, which coincide, to be moved；
Preferably, the servo-actuated bow pedestal is equipped with servo-actuated bow arm connection frame 5, and the servo-actuated bow arm connection frame is perpendicular to rigid
Property third rail extending direction on position it is adjustable, servo-actuated bow arm is articulated with servo-actuated bow arm connection frame one end, height of the elasticity by electricity wheel
It can be adjusted by the tilt angle for adjusting servo-actuated bow arm along hinged shaft.
Further, the servo-actuated bow the middle of the base is equipped with the adjusting screw rod 6 being arranged along its width direction, is servo-actuated bow pedestal
Side is fixed with the support rod 7 parallel with adjusting screw rod, and the servo-actuated bow arm connection frame bottom side is fixed with and adjusting screw rod
The thread bush 8 of cooperation, the other side and support rod socket connect, and described adjusting screw rod one end is connected with adjustment gear 9, adjustment gear
Side is equipped with adjusting motor 10 engaged therewith.
Preferably, the servo-actuated bow arm connection frame, which is fixed with, adjusts cylinder 11, the movable end for adjusting cylinder and servo-actuated
Bend arm connection.
By adjusting motor driven adjustment gear engaged therewith to drive adjusting screw rod to rotate, and then drive servo-actuated bow
The position of pedestal is adjusted；The tilt angle of the servo-actuated bow arm of flexible driving by adjusting cylinder is adjusted；To be taken turns to elasticity by electricity
Height and position adjusting, guaranteeing to be coincide by electricity wheel along bipolar rigid third rail moving.
Rigid third rail is bipolar rigid third rail, and bipolar rigidity third rail includes that two monopoles arranged side by side are rigidly defeated
Electric rail.
Bipolar rigidity third rail is fixed by bipolar rigid third rail mounting assembly installation, bipolar rigidity third rail installation group
Part includes third rail insulator 12, platform sling 13 and pressing plate 14 on the downside of third rail insulator, and bipolar rigidity third rail is stuck in
Between platform sling and pressing plate, platform sling and pressing plate are fixed on third rail insulator by the fixing bolt 15 across middle part.
Further, the sides adjacent of two monopole rigidity third rails of bipolar rigid third rail is correspondingly arranged the card of integrally connected
Block portion 16, pressing plate two sides respectively correspond fastening block part and are provided with card slot.
Platform sling and pressing plate, which are all made of, uses insulating materials, so that bipolar rigidity third rail is insulated from each other.
Third rail insulator can be fixed on the structure at the top of it by bolt assembly, and a kind of specific installation form is to fix
The outstanding bracket that hangs in tunnel wall top, another specific installation form is to be fixed on bracket (rigidity) pillar；
Correspondingly, two elasticity are led to by between electricity wheel wheel shaft there are two elasticity set by the corresponding bipolar rigid third rail of electricity wheel
Cross the connection of wheel shaft insulator 20.
Elasticity be by the specific structure of electricity wheel include wheel shaft and set on the wheel body 17 of wheel shaft periphery, between wheel shaft 18 and wheel body
Card has damping steel wire ring 19.
Preferably, elasticity is by bearing fit at the top of electricity wheel wheel shaft and servo-actuated bow arm.
Elasticity can be cached by the setting damping inside electricity wheel and guarantee Wheel Rail Vibration and impact.And rigidity can be offset
Third rail bipolar elasticity engaged therewith is taken turns tolerance by electricity, the synchronism for keeping two third rails to be contacted with elasticity by electricity wheel.
To sum up, a kind of bipolar rigid contact net formula traffic power supply system is developed, track train is enable to obtain continually and steadily
Electric current supply, ensure surrounding traffic safety.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. bipolar rigid contact net formula traffic power supply system, which is characterized in that including servo-actuated bow pedestal, be connected to servo-actuated bow pedestal
Servo-actuated bow arm, set on it is servo-actuated bow arm at the top of elasticity by electricity take turns and be fixed on elasticity by electricity wheel top and with elasticity by electricity wheel connect
The rigid third rail of touching.
2. bipolar rigid contact net formula traffic power supply system according to claim 1, which is characterized in that the servo-actuated bow bottom
Seat is equipped with servo-actuated bow arm connection frame, and servo-actuated bow arm connection frame position on perpendicular to rigid third rail extending direction is adjustable,
Servo-actuated bow arm is articulated with servo-actuated bow arm connection frame one end, and elasticity can be by adjusting inclining for servo-actuated bow arm along hinged shaft by the height of electricity wheel
Rake angle is adjusted.
3. bipolar rigid contact net formula traffic power supply system according to claim 2, which is characterized in that the servo-actuated bow bottom
Seat middle part is equipped with the adjusting screw rod being arranged along its width direction, and servo-actuated bow pedestal side is fixed with the support parallel with adjusting screw rod
Bar, the servo-actuated bow arm connection frame bottom side are fixed with the thread bush with adjusting screw rod cooperation, and the other side and support rod are socketed
Connection, described adjusting screw rod one end are connected with adjustment gear, and adjustment gear side is equipped with adjusting motor engaged therewith.
4. bipolar rigid contact net formula traffic power supply system according to claim 2, which is characterized in that the servo-actuated bow arm
Connection frame is fixed with adjusting cylinder, and the movable end for adjusting cylinder is connect with servo-actuated bow arm.
5. bipolar rigid contact net formula traffic power supply system described in any one of -4 according to claim 1, which is characterized in that institute
Stating rigid third rail is bipolar rigid third rail, and bipolar rigidity third rail includes two monopole rigidity third rails arranged side by side.
6. the bipolar rigid contact net formula traffic power supply system according to any one of claim 5, which is characterized in that described
Bipolar rigidity third rail is fixed by bipolar rigid third rail mounting assembly installation, the bipolar rigid third rail mounting assembly packet
Include third rail insulator, platform sling and pressing plate on the downside of third rail insulator, the bipolar rigid third rail be stuck in platform sling and
Between pressing plate, platform sling and pressing plate are fixed on third rail insulator by the fixing bolt across middle part.
7. the bipolar rigid contact net formula traffic power supply system according to any one of claim 6, which is characterized in that described
The sides adjacent of bipolar rigidity two monopole rigidity third rails of third rail is correspondingly arranged the fastening block part of integrally connected, pressing plate two sides difference
Corresponding fastening block part is provided with card slot.
8. bipolar rigid contact net formula traffic power supply system according to claim 7, which is characterized in that the elasticity is by electricity
There are two the corresponding bipolar rigid third rail of wheel is set, two elasticity are connected by between electricity wheel wheel shaft by wheel shaft insulator.
9. bipolar rigid contact net formula traffic power supply system according to claim 8, which is characterized in that the elasticity is by electricity
Wheel includes wheel shaft and the wheel body set on wheel shaft periphery, and card has damping steel wire ring between wheel shaft and wheel body.
10. bipolar rigid contact net formula traffic power supply system according to claim 9, which is characterized in that it is described elasticity by
Bearing fit at the top of electricity wheel wheel shaft and servo-actuated bow arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711065375.6A CN109747429A (en) | 2017-11-02 | 2017-11-02 | Bipolar rigid contact net formula traffic power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711065375.6A CN109747429A (en) | 2017-11-02 | 2017-11-02 | Bipolar rigid contact net formula traffic power supply system |
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| Publication Number | Publication Date |
|---|---|
| CN109747429A true CN109747429A (en) | 2019-05-14 |
Family
ID=66399237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711065375.6A Pending CN109747429A (en) | 2017-11-02 | 2017-11-02 | Bipolar rigid contact net formula traffic power supply system |
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| Country | Link |
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| CN (1) | CN109747429A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303891A (en) * | 2019-07-17 | 2019-10-08 | 西南交通大学 | Self-lubricating modular metal roller block of bow collector of electric locomotive bow containing shock-damping structure |
| CN110370936A (en) * | 2019-08-30 | 2019-10-25 | 西南交通大学 | A kind of double more roller type modularization current collection devices of use for electric locomotive |
| CN114199203A (en) * | 2020-09-17 | 2022-03-18 | 成都唐源电气股份有限公司 | Imaging detection method and device suitable for rigid and flexible overhead line system of subway |
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| US4194603A (en) * | 1978-09-13 | 1980-03-25 | Ross Donald R Jr | Trolley rail and flying pickup |
| CN103129416A (en) * | 2013-03-07 | 2013-06-05 | 西南交通大学 | Rail transit double-contact-rail power supply system |
| DE102012213460A1 (en) * | 2012-07-31 | 2014-02-06 | Siemens Aktiengesellschaft | Non-rail-bound vehicle e.g. truck, has adjusting platform that is moveable transverse to vehicle longitudinal axis directed actuating movement of current collector in relative to vehicle by adjusting device |
| CN104029609A (en) * | 2014-07-01 | 2014-09-10 | 李雷 | C-type steel aluminum composite conductor rail with holes |
| CN204037374U (en) * | 2014-08-05 | 2014-12-24 | 中铁电气化勘测设计研究院有限公司 | A kind of rigid contact net |
| CN205149548U (en) * | 2015-12-02 | 2016-04-13 | 洛阳市科佳电气设备有限公司 | Formula pantograph is cut to electronic bus |
| CN207657613U (en) * | 2017-11-02 | 2018-07-27 | 天津益昌电气设备股份有限公司 | Bipolar rigid contact net formula traffic power supply system |
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2017
- 2017-11-02 CN CN201711065375.6A patent/CN109747429A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4194603A (en) * | 1978-09-13 | 1980-03-25 | Ross Donald R Jr | Trolley rail and flying pickup |
| DE102012213460A1 (en) * | 2012-07-31 | 2014-02-06 | Siemens Aktiengesellschaft | Non-rail-bound vehicle e.g. truck, has adjusting platform that is moveable transverse to vehicle longitudinal axis directed actuating movement of current collector in relative to vehicle by adjusting device |
| CN103129416A (en) * | 2013-03-07 | 2013-06-05 | 西南交通大学 | Rail transit double-contact-rail power supply system |
| CN104029609A (en) * | 2014-07-01 | 2014-09-10 | 李雷 | C-type steel aluminum composite conductor rail with holes |
| CN204037374U (en) * | 2014-08-05 | 2014-12-24 | 中铁电气化勘测设计研究院有限公司 | A kind of rigid contact net |
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| CN207657613U (en) * | 2017-11-02 | 2018-07-27 | 天津益昌电气设备股份有限公司 | Bipolar rigid contact net formula traffic power supply system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303891A (en) * | 2019-07-17 | 2019-10-08 | 西南交通大学 | Self-lubricating modular metal roller block of bow collector of electric locomotive bow containing shock-damping structure |
| CN110303891B (en) * | 2019-07-17 | 2024-05-28 | 西南交通大学 | Self-lubricating modularized metal roller electric locomotive pantograph head with damping structure |
| CN110370936A (en) * | 2019-08-30 | 2019-10-25 | 西南交通大学 | A kind of double more roller type modularization current collection devices of use for electric locomotive |
| CN110370936B (en) * | 2019-08-30 | 2024-05-28 | 西南交通大学 | Double-row multi-roller type modularized current collector for electric locomotive |
| CN114199203A (en) * | 2020-09-17 | 2022-03-18 | 成都唐源电气股份有限公司 | Imaging detection method and device suitable for rigid and flexible overhead line system of subway |
| CN114199203B (en) * | 2020-09-17 | 2023-07-18 | 成都唐源电气股份有限公司 | Imaging detection method and device suitable for subway rigidity and flexible contact net |
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Application publication date: 20190514 |