CN110884354B - A Circular Rotating "Receive-Return" System for Rail Transit - Google Patents
A Circular Rotating "Receive-Return" System for Rail Transit Download PDFInfo
- Publication number
- CN110884354B CN110884354B CN201911282081.8A CN201911282081A CN110884354B CN 110884354 B CN110884354 B CN 110884354B CN 201911282081 A CN201911282081 A CN 201911282081A CN 110884354 B CN110884354 B CN 110884354B
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- 229910052799 carbon Inorganic materials 0.000 claims abstract description 150
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 148
- 239000002184 metal Substances 0.000 claims abstract description 21
- 239000012212 insulator Substances 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 abstract description 16
- 239000010959 steel Substances 0.000 abstract description 16
- 238000010992 reflux Methods 0.000 abstract description 13
- 238000009413 insulation Methods 0.000 description 7
- 230000003137 locomotive effect Effects 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241001125292 Balaena mysticetus Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
- B60L5/20—Details of contact bow
- B60L5/205—Details of contact bow with carbon contact members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
- B60L5/22—Supporting means for the contact bow
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention discloses an annular rotating current-receiving-backflow system suitable for rail transit, which comprises a plurality of arc-shaped upper-layer carbon sliders and a plurality of arc-shaped lower-layer carbon sliders, wherein the upper-layer carbon sliders are arranged in a circular shape and are separated from each other; each lower-layer carbon sliding block is connected below each upper-layer carbon sliding block through a carbon sliding block metal bracket, and each carbon sliding block metal bracket is connected to the rotating shaft through an insulator; the rotating shaft penetrates through the circle center of the circular ring and is connected to the output end of the rotating motor; the carbon sliding block is arranged on the upper layer, is in rotary contact with the power supply line and the return line, is parallel to the power supply line and the return line, is arranged on the lower layer, is in rotary contact with the lower layer, and is provided with a current receiving support and a return support which respectively correspond to the power supply line and the return line; the current receiving bracket and the backflow bracket are respectively connected with the current receiving lead and the backflow lead. The invention eliminates the stray current phenomenon caused by the reflux of the train steel rail, and the carbon sliding block is driven to rotate according to the circumference by the rotating motor, thereby ensuring the 100 percent utilization rate of the carbon sliding block.
Description
Technical Field
The invention relates to the technical field of rail transit power supply systems, in particular to an annular rotating current receiving-backflow system suitable for rail transit.
Background
With the comprehensive development of national economy of China, the urbanization process is accelerated continuously, and a safe, convenient and environment-friendly electrified urban rail transit system is important. The rapid development of high-speed railways has become an important traffic tie between provinces and cities; as the core of intercity rail transit, the continuous development of the urban rail transit effectively relieves the congestion problem of traveling vehicles and provides convenience for people's traffic traveling. At present, electric locomotives of urban rail transit mainly adopt direct current traction power supply, and train steel rails are used as traction reflux branches. At present, complete ground insulation of a train rail cannot be guaranteed temporarily, so that stray current generated by a traction power supply system is difficult to avoid leaking into the ground. As the urban rail transit power supply system is mostly direct current, compared with the alternating current power supply direct current urban rail power supply system, the leakage stray current is easier to cause the electrochemical corrosion of the rail along the train. Under the humid and polluted environment, stray current can be increased due to the reduction of the insulating property of the train steel rail to the ground, so that the interference on the surrounding alternating current transmission line stroke is easier, the direct current magnetic bias of a transformer core in a transformer substation is caused, the electric energy quality is seriously influenced, the transmission loss is aggravated, and the problem of the stray current generated by a direct current traction electric locomotive must be considered.
The direct current traction system adopts a contact net or a contact rail as a positive pole, and a train steel rail is also used as a return branch. Because the train steel rail has certain resistance, when traction current flows through the train steel rail to return, a voltage drop can be generated in the train steel rail, and meanwhile, the train steel rail also has certain potential difference to the ground, and the potential difference to the ground can cause the traction return current which originally flows through the train steel rail to leak into soil, so that stray current is formed, and metal pipelines or underground building reinforcing steel bars and the like laid along the line are corroded. At the initial stage of building the electrified railway, the insulation degree between the train steel rail and the track bed is high, and the stray current is small, but along with the passing of operation time, the insulation effect between the train steel rail and the track bed is inevitably influenced by factors such as pollution, moisture, water seepage and the like, so that the insulation performance of the rail-ground is reduced, even the insulation performance is failed, and the stray current leaking to the soil medium from the train steel rail is increased.
The nature of stray current is that because of the large resistance of the train rail, part of the current flows back into the train rail through the medium, namely leaks to the soil medium from the train rail and then flows back to the train rail from another point. When stray current flows through soil, metal is used as conductors, such as communication cables, water pipes, gas pipelines, building reinforcing steel bars and the like laid around an electrified railway, when the current is reserved back to the soil from the metal conductors and flows back to a train steel rail, corrosion can be caused at the outflow part, and the outflow part can be polarized into a positive pole, so that the corrosion is accelerated, the strength of the metal is damaged, and the bearing resistance and the service life of the metal are reduced. In addition, in parking lots and vehicle sections, stray current leaked at the positive line position can easily flow into the parking lots and the vehicle sections through the grounding electrode, so that related equipment in the parking lots is subjected to shell ignition, and even serious threats are brought to personal safety of workers of operating units in the parking lots.
In the uk, landslide accidents have been caused by the long-term corrosion of concrete structural steel by stray currents; in China, the phenomenon of perforation of a Beijing subway and a Tianjin subway caused by long-term corrosion of a water pipe by stray current is also caused. For the problems caused by stray current, although many countermeasures such as strictly controlling the welding process of the rail gap of the train rail, strengthening the insulation between the train rail and the track bed, etc. exist, the generation of the stray current cannot be fundamentally avoided.
At present, in order to enable the carbon sliding plates to rub uniformly as much as possible in the running process of an electric locomotive, the installation mode of contact wires is generally Z-shaped, a pantograph is generally I-shaped bow head, when a train starts to run, the carbon sliding plates positioned at the bow head of the pantograph are contacted with the contact wires and slide relatively, at the moment, due to the Z-shaped installation of the contact wires, the contact wires can slide back and forth relative to the carbon sliding plates in about 60% -70% of sweet areas around the center of the carbon sliding plates, and therefore the carbon sliding plates at two ends of the non-sweet areas cannot be fully utilized by carbon sliding plate materials, and the non-contact areas exist.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an annular rotary "current-collecting-refluxing" multifunctional system suitable for rail transit, in which a reflux line parallel to a power supply line is used as a reflux branch instead of a train rail, and a pantograph head of an annular rotary carbon slider is designed to ensure the safe and reliable operation of the "current-collecting-refluxing" system. The technical scheme is as follows:
an annular rotating current receiving-backflow system suitable for rail transit comprises an upper-layer carbon sliding block and a lower-layer carbon sliding block; the upper-layer carbon slide block and the lower-layer carbon slide block respectively comprise a plurality of arc-shaped carbon slide blocks with equal size and radius, and the upper-layer carbon slide blocks are arranged in a circular ring shape and are separated from each other; the lower-layer carbon sliding blocks are correspondingly connected below the upper-layer carbon sliding blocks one by one through carbon sliding block metal supports, and the carbon sliding block metal supports are connected to the rotating shaft through carbon sliding block insulators; the rotating shaft penetrates through the circle center of the circular ring and is connected to the output end of the rotating motor; the carbon sliding block structure also comprises a power supply line and a return line which are arranged above the upper-layer carbon sliding block and are parallel to each other, and a current receiving support and a return support which are arranged below the lower-layer carbon sliding block, are parallel to the power supply line and the return line and are respectively arranged on the same vertical plane; the upper carbon sliding blocks are in rotary contact with the power supply line and the return line, and at least one upper carbon sliding block is in independent contact with the return line or the power supply line; the lower-layer carbon sliding blocks are in rotary contact with the current receiving bracket and the backflow bracket, and at least one lower-layer carbon sliding block is in independent contact with the current receiving bracket or the backflow bracket; the current receiving bracket and the backflow bracket are respectively connected with the current receiving lead and the backflow lead.
Furthermore, the upper-layer carbon sliding blocks are connected through an insulating connecting block, and the insulating connecting block is slightly lower than the upper surface of the upper-layer carbon sliding block.
Furthermore, the rotating motor is fixed on the bottom bracket, and the current receiving bracket and the backflow bracket are respectively fixed on the bottom bracket through a bottom bracket insulator.
Furthermore, the circle center of the ring formed by the upper carbon sliding block and the insulating connecting block is positioned at the center of the power supply line and the return line.
Further, when the distance between the return wire and the power supply wire is denoted by d, the radius of the circular ring formed by the upper carbon block and the insulating connection block is denoted by r, and the circumferential radian of each upper carbon block is denoted by θ, d: r =30:25, and θ =52 °.
The invention has the beneficial effects that:
1) according to the invention, the set return line is used as a return branch of a traction power supply system, and a train steel rail is not used as the return branch, so that stray current is eliminated to the greatest extent, and therefore nearby buried metal pipelines and building reinforcing steel bars are prevented from being corroded by the stray current;
2) the pantograph bow of the annular rotary carbon sliding block can ensure that each carbon sliding block realizes 100 percent utilization rate under the driving of the rotary motor;
3) the annular rotary carbon sliding block pantograph head disclosed by the invention realizes two functions of current collection and reflux of one pantograph head, and two pantograph heads are not required to be designed to realize the current collection and reflux functions respectively due to the existence of a reflux line and a power supply line, so that the operation cost is saved;
4) the carbon sliding block for the pantograph head of the pantograph has 100% utilization rate and good heat dissipation performance, a return line and a power supply line can be designed into a straight line, a contact line does not need to be designed into a Z shape to solve the heat dissipation problem and the utilization rate problem of the straight carbon sliding plate, construction is facilitated, hard points can be effectively generated, and the contact line and the pantograph head are further protected.
Drawings
Fig. 1 is a perspective view of a circular rotating 'current receiving-backflow' multifunctional system suitable for rail transit.
Fig. 2 is a side view of the circular rotating 'current-return' multifunctional system suitable for rail transit.
Fig. 3 is a front view of the circular rotary 'current-return' multifunctional system suitable for rail transit.
Fig. 4 is a top view of the circular rotating 'current receiving-backflow' multifunctional system suitable for rail transit.
In the figure: 1-a reflux line; 2-upper carbon slide plate; 3-insulating connecting blocks; 4-carbon slider metal mount; 5-carbon slider insulators; 6-supply lines; 7-a reflux scaffold; 8-a return conductor; 9-bottom bracket insulator; 10-a bottom support; 11-a rotating electrical machine; 12-a rotating shaft; 13-a current-receiving scaffold; 14-current-receiving conductor; 15-lower carbon slide.
Detailed Description
The invention is described in further detail below with reference to the figures and specific embodiments. As shown in fig. 1, the circular rotating current-receiving-refluxing system suitable for rail transit of the present invention comprises an upper carbon slide block 2 and a lower carbon slide block 15; the upper-layer carbon slide block 2 and the lower-layer carbon slide block 15 both comprise a plurality of arc-shaped carbon slide blocks with equal size and radius, and the upper-layer carbon slide blocks 2 are arranged in a circular ring shape and are separated from each other; the lower-layer carbon sliding blocks 15 are correspondingly connected below the upper-layer carbon sliding blocks 2 through carbon sliding block metal brackets 4 one by one, and the carbon sliding block metal brackets 4 are connected to the rotating shaft 12 through carbon sliding block insulators 5; the rotating shaft 12 passes through the center of the circular ring and is connected to the output end of the rotating motor 14; the device also comprises a power supply line 6 and a return line 1 which are arranged above the upper-layer carbon slide block 2 and are parallel to each other, and a current receiving bracket 13 and a return bracket 7 which are arranged below the lower-layer carbon slide block 15, are parallel to the power supply line 6 and the return line 1 and are respectively arranged on the same vertical plane; the upper carbon sliding blocks 2 are in rotary contact with the power supply line 6 and the return line 1, and at least one upper carbon sliding block 2 is in independent contact with the return line 1 or the power supply line 6; the lower-layer carbon sliding blocks 15 are in rotary contact with the current receiving bracket 13 and the backflow bracket 7, and at least one lower-layer carbon sliding block 15 is in independent contact with the current receiving bracket 13 or the backflow bracket 7; the current-receiving bracket 13 and the return bracket 7 are connected with the current-receiving lead 14 and the return lead 8 respectively.
The motor locomotive gets the flow from the power supply line 6, and then flows back to the traction substation through the return line 2, cancels the train steel rail as a return branch, thereby eliminating the stray current phenomenon caused by the train steel rail return, and ensuring the normal use of nearby equipment such as buried metal pipelines. In addition, in order to solve the insufficient phenomenon of traditional "one" style of calligraphy carbon slide rate of utilization, this rotatory carbon slider pantograph bow of annular, it is rotatory according to the circumference to drive the carbon slider through the rotating electrical machines, guarantees the 100% utilization ratio of carbon slider.
In the pantograph head of the annular rotary carbon slide block of the embodiment, the upper carbon slide block 2 and the lower carbon slide block 15 are 5 independent arc carbon slide blocks with equal size and radius, the upper carbon slide blocks 2 are connected with each other through the insulating connecting blocks 3 with equal size and radius, as can be clearly seen from fig. 4, the upper carbon slide block 2 and the insulating connecting blocks 3 form a 'circular ring', and the circle center of the 'circular ring' is positioned at the center of the power supply line 6 and the return line 1; the lower carbon slide blocks 15 are in one-to-one correspondence with the upper carbon slide blocks 2 in the vertical direction. The upper carbon slide block 2 and the lower carbon slide block 15 are connected with each other through the carbon slide block metal support 4, in order to guarantee the rotation reliability of the carbon slide blocks, each carbon slide block metal support 4 is connected to the rotating shaft 12 through the carbon slide block insulator 5, and after the connection, the 5 carbon slide blocks of the upper layer and the lower layer are still guaranteed to be insulated and independently subjected to current and reflowed. Under the drive of the rotating motor 11, the rotating shaft 12 drives the upper carbon slide block 2, the carbon slide block metal support 4 and the lower carbon slide block 15 to synchronously rotate, the upper carbon slide block 2 is in rotary contact with the return line 1 and the power supply line 6, the lower carbon slide block 15 is in rotary contact with the return support 7 and the current receiving support 13, and at any time, at least one upper carbon slide block 2 is in contact with the return line 1 and the power supply line 6, and at least one lower carbon slide block 15 is in contact with the return support 7 and the current receiving support 13, so that the normal operation of the 'current receiving-return' system is ensured at any time.
Because the return line 1 and the power supply line 6 both belong to flexible contact networks, so when the electric locomotive runs, the fluctuation of the return line 1 and the power supply line 6 is unlikely to cause, in order to prevent the clamping stagnation phenomenon of the return line 1 and the power supply line 6 and the pantograph head of the annular rotating carbon slide block when fluctuating, and even the flexible contact network or the pantograph crack phenomenon caused by convolution, the five upper carbon slide blocks 2 are complemented by the insulating connecting blocks 3 according to the original 'circular ring' structure, and the insulating connecting blocks 3 are slightly lower than the upper surfaces of the upper carbon slide blocks 2. The lower carbon slide block 15 does not need to be provided with the insulating connecting blocks 2 between the upper carbon slide block and the lower carbon slide block like the upper carbon slide block 2, and because the fixedly arranged reflux support 7 and the fixedly arranged current receiving support 13 are in contact with the lower carbon slide block, the fluctuation problem does not exist. The return current holder 7 and the current receiving holder 13 are parallel to and on the same vertical plane as the return current line 1 and the power supply line 6, respectively, and the return current holder 7 and the current receiving holder 13 are connected to the bottom holder 10 through the bottom holder insulator 9, respectively, so as to ensure insulation between them, as shown in fig. 3 in particular.
In order to ensure the normal work of the pantograph head of the annular rotating carbon sliding block, namely to ensure that at any moment, the return line 1, the power supply line 6, the return support 7 and the current receiving support 13 are at least contacted with one carbon sliding block, the invention debugs that the distance d between the return line 1 and the power supply line 6 and the radius r of the annular carbon sliding block are the same as that of the lower carbon sliding block 15 and the upper carbon sliding block 2. In addition, since the 5 upper carbon blocks 2 are actually in the same "ring", in addition to controlling the ratio between d and r, the lower carbon block 15 and the upper carbon block 2 should be controlled to have the same circumferential radian θ occupied by each upper carbon block 2. Through debugging, the invention sets the proportion between d and r and theta as follows: when d: r =30:25 and θ =52 °, it is ensured that the return wire 1, the power supply wire 6, the return holder 7, and the current receiving holder 13 are in contact with at least one carbon slider at any time, and that the carbon slider does not short-circuit the return wire 1 and the power supply wire 6.
The working modes of the invention are as follows: the carbon slide block metal bracket 4 is connected with the upper carbon slide block 2 and the lower carbon slide block 15, and the upper carbon slide block and the lower carbon slide block have the same size and the same axle center. When current is received, after the upper-layer carbon slide block 2 is contacted with the power supply line 6 for current taking, current is transmitted to the current receiving bracket 13 through the corresponding lower-layer carbon slide block 15, and then is transmitted to a train through the current receiving wire 14; during backflow, the train transmits current to a lower-layer carbon slide block 15 in contact with the backflow support 7 through the backflow lead 8 and the backflow support 7, then transmits the current to a backflow line 1 in contact with an upper-layer carbon slide block 2 through the carbon slide block metal support 4 and the corresponding upper-layer carbon slide block 2, and finally flows back to the traction substation.
Claims (5)
1. An annular rotating current-receiving-backflow system suitable for rail transit is characterized by comprising an upper-layer carbon sliding block (2) and a lower-layer carbon sliding block (15); the upper-layer carbon slide block (2) and the lower-layer carbon slide block (15) respectively comprise a plurality of arc-shaped carbon slide blocks with equal size and radius, and the arc-shaped carbon slide blocks in the upper-layer carbon slide block (2) are arranged in a circular ring shape and are separated from each other; the arc-shaped carbon sliding blocks in the lower-layer carbon sliding block (15) are correspondingly connected below the arc-shaped carbon sliding blocks in the upper-layer carbon sliding block (2) through carbon sliding block metal supports (4), and each carbon sliding block metal support (4) is connected to the rotating shaft (12) through a carbon sliding block insulator (5); the rotating shaft (12) penetrates through the circle center of the circular ring and is connected to the output end of the rotating motor (14); the device also comprises a power supply line (6) and a return line (1) which are arranged above the upper-layer carbon slide block (2) and are parallel to each other, and a current receiving bracket (13) and a return bracket (7) which are arranged below the lower-layer carbon slide block (15), are parallel to the power supply line (6) and the return line (1) and are respectively arranged on the same vertical plane; the upper carbon sliding blocks (2) are in rotary contact with the power supply line (6) and the return line (1), and at any moment, at least one circular arc-shaped carbon sliding block is ensured to be in independent contact with the return line (1) and the power supply line (6); the lower carbon slide block (15) is in rotary contact with the current receiving support (13) and the backflow support (7), and at any moment, at least one arc-shaped carbon slide block is respectively in independent contact with the current receiving support (13) and the backflow support (7); the current receiving bracket (13) and the backflow bracket (7) are respectively connected with the current receiving lead (14) and the backflow lead (8).
2. The annular rotary current-receiving-and-returning system suitable for rail transit according to claim 1, wherein the plurality of arc-shaped carbon sliders in the upper carbon slider (2) are connected through an insulating connecting block (3), and the insulating connecting block (3) is slightly lower than the upper surfaces of the plurality of arc-shaped carbon sliders.
3. An annular rotary current-return system suitable for rail transit according to claim 1, characterized in that the rotary electric machine (11) is fixed on the bottom bracket (10), the current-return bracket (7) and the current-return bracket (13) being fixed on the bottom bracket (10) through bottom bracket insulators (9), respectively.
4. The annular rotary current-collecting-and-returning system suitable for rail transit according to claim 2, wherein the circle center of the circular ring formed by the plurality of circular arc-shaped carbon sliders in the upper carbon slider (2) and the insulating connecting block (3) is located at the center of the power supply line (6) and the return line (1).
5. The circular rotary current-receiving-and-returning system suitable for rail transit according to claim 4, wherein the distance between the return line (1) and the power supply line (6) is denoted as d, the radius of a circle formed by the plurality of circular-arc-shaped carbon sliders in the upper carbon slider (2) and the insulating connection block (3) is denoted as r, the circumferential radian of each circular-arc-shaped carbon slider is denoted as θ, and then d: r =30:25, and θ =52 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911282081.8A CN110884354B (en) | 2019-12-13 | 2019-12-13 | A Circular Rotating "Receive-Return" System for Rail Transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911282081.8A CN110884354B (en) | 2019-12-13 | 2019-12-13 | A Circular Rotating "Receive-Return" System for Rail Transit |
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| CN110884354A CN110884354A (en) | 2020-03-17 |
| CN110884354B true CN110884354B (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911282081.8A Active CN110884354B (en) | 2019-12-13 | 2019-12-13 | A Circular Rotating "Receive-Return" System for Rail Transit |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009207345A (en) * | 2008-02-28 | 2009-09-10 | Makoto Maeda | Circular contact plate for pantograph |
| CN101689761A (en) * | 2007-05-10 | 2010-03-31 | 奥克兰联合服务有限公司 | Multi power sourced electric vehicle |
| CN108944461A (en) * | 2017-05-18 | 2018-12-07 | 姚秀林 | Double source railless electric lorry |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE725892C (en) * | 1938-06-24 | 1942-10-01 | Siemens Planiawerke Ag | Pantographs for electrically powered vehicles |
| DE3536843A1 (en) * | 1985-10-16 | 1987-04-16 | Dornier System Gmbh | PANTOGRAPH DEVICE |
| DE19529065C1 (en) * | 1995-08-08 | 1997-02-27 | Abb Patent Gmbh | Overhead current collector for electrically powered tram |
| DE19652367A1 (en) * | 1996-12-17 | 1998-06-18 | Abb Patent Gmbh | Current collector with at least one height adjustable holding system carrying loop strip system |
| JP4475653B2 (en) * | 2005-03-30 | 2010-06-09 | 財団法人鉄道総合技術研究所 | Current collector boat drive |
| CN205632141U (en) * | 2016-04-29 | 2016-10-12 | 同济大学 | Well low -speed maglev train current collector |
| CN209111942U (en) * | 2018-04-08 | 2019-07-16 | 唐华平 | A kind of circular ring shape is by flowing plate pantograph |
| CN110154767B (en) * | 2019-05-21 | 2024-05-28 | 西南交通大学 | Multi-ring structure electric locomotive pantograph head |
-
2019
- 2019-12-13 CN CN201911282081.8A patent/CN110884354B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101689761A (en) * | 2007-05-10 | 2010-03-31 | 奥克兰联合服务有限公司 | Multi power sourced electric vehicle |
| JP2009207345A (en) * | 2008-02-28 | 2009-09-10 | Makoto Maeda | Circular contact plate for pantograph |
| CN108944461A (en) * | 2017-05-18 | 2018-12-07 | 姚秀林 | Double source railless electric lorry |
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| CN110884354A (en) | 2020-03-17 |
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