CN115158367B - Empty rail rubber wheel vehicle and active safety grounding device and method thereof - Google Patents
Empty rail rubber wheel vehicle and active safety grounding device and method thereof Download PDFInfo
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- CN115158367B CN115158367B CN202210846480.8A CN202210846480A CN115158367B CN 115158367 B CN115158367 B CN 115158367B CN 202210846480 A CN202210846480 A CN 202210846480A CN 115158367 B CN115158367 B CN 115158367B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B3/00—Elevated railway systems with suspended vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M5/00—Arrangements along running rails or at joints thereof for current conduction or insulation, e.g. safety devices for reducing earth currents
- B60M5/02—Means for reducing potential difference between rail and adjacent ground
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Abstract
The invention discloses an empty rail rubber-tyred vehicle and an active safety grounding device and method thereof, wherein each set of active safety grounding device comprises a control module and a grounding module arranged at the bottom of a carriage; the grounding module comprises a driving assembly, a linear motion assembly and a steel wheel; the driving component is connected with the linear motion component; the steel wheel is arranged on the linear motion assembly; the output end of the control module is electrically connected with the driving assembly; the control module controls the driving assembly to work according to the state and/or the running speed of the vehicle, so as to control the movement of the linear movement assembly, and further control the contact between the steel wheel and the ground. The invention can realize the active control of the grounding of the steel wheel according to the state and/or the running speed of the vehicle, ensures the safe grounding of the vehicle, eliminates the potential difference of the vehicle, ensures the safety of driving or overhauling and maintenance, and greatly improves the reliability and stability of the safe grounding control.
Description
Technical Field
The invention belongs to the technical field of rail transit, and particularly relates to an active safety grounding device and method applied to an empty rail rubber-tyred vehicle.
Background
An air rail vehicle (namely an air rail train) runs below a rail through a special wheel-rail running system, and a vehicle body is suspended in the air to run. In order to ensure the comfort of the running system during running, the running wheels and the stabilizing wheels of the running system are usually rubber wheels, and because the rubber wheels are naturally insulated, a grounding module is required to be configured for ensuring the grounding safety of the whole vehicle.
At present, a grounding module of the empty rail rubber wheel vehicle adopts a passive grounding carbon brush to perform safe grounding (as shown in fig. 1) in a grounding area, or a grounding connecting rod structure or a brake clamp fixed grounding module and the like, so that the safe grounding of the vehicle is realized. The passive grounding mode has the problems of unreliable grounding module, instability and the like, and can influence the safety of drivers and passengers.
Disclosure of Invention
The invention aims to provide an empty rail rubber-tyred vehicle and an active safety grounding device and method thereof, which are used for solving the problem of low reliability and stability of the conventional passive grounding module.
The invention solves the technical problems by the following technical scheme: an active safety grounding device is applied to an empty rail rubber-tyred vehicle, at least one set of active safety grounding device is arranged on two sides of the bottom of each carriage, and each set of active safety grounding device comprises a control module and a grounding module arranged at the bottom of the carriage;
the grounding module comprises a driving assembly, a linear motion assembly and a steel wheel; the driving component is connected with the linear motion component; the steel wheel is arranged on the linear motion assembly; the output end of the control module is electrically connected with the driving assembly;
the control module controls the driving assembly to work according to the state and/or the running speed of the vehicle, so as to control the movement of the linear movement assembly, and further control the contact between the steel wheel and the ground.
Further, the driving component is an electromagnetic block, and the linear motion component comprises an elastic component and a magnetization guiding support seat; the electromagnetic block is connected with the magnetization guiding support seat through an elastic part, and the steel wheel is arranged on the magnetization guiding support seat; the output end of the control module is electrically connected with the electromagnetic coil of the electromagnetic block;
the control module controls whether the electromagnetic block is conducted or not according to the state and/or the running speed of the vehicle, and further controls the adsorption of the electromagnetic block on the magnetization guiding support seat, and further controls the contact between the steel wheel and the ground.
Further, the elastic member is a leaf spring or a coil spring.
Further, the driving component is a driving motor, and the linear motion component is a screw rod component; the output end of the driving motor is connected with the screw rod assembly, and the steel wheel is arranged on the screw rod assembly.
Further, the driving component is a stepping motor, and the linear motion component is an electric telescopic rod which can stretch left and right; the output end of the stepping motor is connected with the electric telescopic rod, and the steel wheel is arranged on the electric telescopic rod.
Further, the control module includes a first relay and a second relay; the normally open contact of the first relay is connected with the coil of the second relay in series; the normally open contact of the second relay is electrically connected with the driving assembly; the power-on and power-off of the coil of the first relay is controlled by a TCMS system of the vehicle according to the state and/or the running speed of the vehicle, and the power-on and power-off of the coil of the second relay is controlled by the opening and closing of the normally open contact of the first relay.
Further, the control module further comprises a bypass switch, and the bypass switch is arranged on a driver's cab; one end of the bypass switch is connected with the positive electrode of the power supply, and the other end of the bypass switch is connected with the coil of the second relay.
Further, the bypass switch is a normally open resettable switch.
Based on the same inventive concept, the invention also provides a method for active grounding control by using the active safety grounding device, which comprises the following steps:
when the vehicle is not towed and/or the running speed is zero, the control module controls the driving assembly to be not operated, controls the linear motion assembly to be not moved, and the steel wheel is contacted with the ground;
when the traction and/or running speed of the vehicle is not zero, the control module controls the driving assembly to be electrified to work, controls the linear motion assembly to retract and move, and the steel wheel is separated from or not contacted with the ground.
Based on the same inventive concept, the invention also provides an empty rail rubber-tyred vehicle, which comprises the active safety grounding device.
Advantageous effects
Compared with the prior art, the invention has the advantages that:
the empty rail rubber wheel vehicle and the active safety grounding device and method thereof provided by the invention can realize the active control of the steel wheel grounding according to the vehicle state and/or the running speed, ensure the safe grounding of the vehicle, eliminate the potential difference of the vehicle, ensure the safety of driving or overhauling and maintenance, and greatly improve the reliability and stability of the safe grounding control.
Compared with a passive grounding module, the invention can realize automatic and safe grounding of the vehicle through active control when the vehicle overhauls in a warehouse, goes in and out of a station or is in line rescue, thereby ensuring the safety of drivers and passengers; when the TCMS system is in fault, the control that the steel wheel is separated from the ground can be realized through the bypass switch, so that the redundancy is improved, the risk that the vehicle exceeds the line limit is avoided, and the influence of the steel wheel on the normal operation of the vehicle is avoided; the invention ensures active safety grounding, and simultaneously, the steel wheel plays a role of a guide wheel when a line or a station goes in and out to stop.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawing in the description below is only one embodiment of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the wheel track relationship of a hollow track rubber-tyred vehicle in the background of the invention; the device comprises an A-vehicle body, a B-travelling wheel, a C-stabilizing wheel, a D-current collector installation area, an E-reflux and grounding installation area and an F-track box girder.
FIG. 2 is a side view of a hollow rail rubber-tyred vehicle in accordance with an embodiment of the invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2 in an embodiment of the invention;
fig. 4 is a schematic structural diagram of a grounding module in embodiment 1 of the present invention;
FIG. 5 is a schematic diagram of a control module in an embodiment of the invention;
fig. 6 is a flowchart of an active ground control method according to an embodiment of the invention.
The device comprises a 1-grounding module, 11-electromagnetic blocks, 12-elastic components, 13-magnetization guide support seats and 14-steel wheels.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent and fully by reference to the accompanying drawings, in which it is shown, however, only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The technical scheme of the present application is described in detail below with specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
Example 1
The active safety grounding device provided by the embodiment of the invention is applied to an empty rail rubber-tyred vehicle, and two sets of active safety grounding devices are arranged on two sides of the bottom of each carriage, as shown in fig. 2 and 3.
Each set of active safety grounding device comprises a control module and a grounding module 1 arranged at the bottom of the carriage. As shown in fig. 4, the grounding module 1 comprises an electromagnetic block 11, an elastic part 12, a magnetization guiding support seat 13 and a steel wheel 14; the electromagnetic block 11 is connected with the magnetizing guide support seat 13 through the elastic part 12, and the steel wheel 14 is arranged on the magnetizing guide support seat 13; as shown in fig. 5, the control module includes a first relay and a second relay; the normally open contact K12 of the first relay is connected with the coil K21 of the second relay in series; the normally open contact K22 of the second relay is electrically connected with the electromagnetic coil of the electromagnetic block 11; the power-on/off of the coil K11 of the first relay is controlled by a TCMS system of the vehicle according to the state and/or the running speed of the vehicle, and the power-on/off of the coil K21 of the second relay is controlled by the opening and closing of the normally open contact K12 of the first relay.
When the running speed of the vehicle is zero, the TCMS system controls the coil K11 of the first relay to lose electricity, the normally open contact K12 of the first relay is kept to be disconnected, the coil K21 of the second relay is lost, the normally open contact K22 of the second relay is kept to be disconnected, the electromagnetic block 11 is not electrified, the electromagnetic block 11 does not have an adsorption effect on the magnetization guiding support seat 13, the elastic component 12 is in a natural state, the steel wheel 14 is in contact with the platform ground (as shown in a state shown in fig. 4 (a)), the grounding of the vehicle is realized, the grounding safety of the vehicle is ensured, and the potential difference of the vehicle is eliminated; when the running speed of the vehicle is not zero, the TCMS system controls the coil K11 of the first relay to be electrified, the normally open contact K12 of the first relay is closed, the coil K21 of the second relay is electrified, the normally open contact K22 of the second relay is closed, the electromagnetic block 11 is electrified, the electromagnetic block 11 has an adsorption function on the magnetizing guide support seat 13, the elastic component 12 is compressed, the steel wheel 14 is not contacted with or separated from the ground (as shown in a state shown in fig. 4 (b)), the grounding module 1 has no influence on the normal running state of the vehicle, safe running of the vehicle is ensured, and the risk that the vehicle exceeds a line limit is avoided.
The grounding module 1 composed of the electromagnetic block 11, the elastic component 12, the magnetizing guide support seat 13 and the steel wheel 14 has the advantages of simple structure, light weight, easiness in control, high response speed and convenience in maintenance.
In one embodiment of the present invention, the elastic member 12 is a leaf spring or a coil spring.
In a specific embodiment of the present invention, the control module further includes a bypass switch N1, where the bypass switch N1 is disposed on a driver's cab; one end of the bypass switch N1 is connected to the positive electrode of the power supply, and the other end is connected to the coil K21 of the second relay, as shown in fig. 5.
When the steel wheel 14 does not move in place (i.e. cannot be separated from the ground normally) or the TCMS system fails and cannot control the steel wheel 14 to be separated from the ground normally, a driver controls the coil K21 of the second relay to be electrified through the bypass switch N1, so that the driving assembly is controlled to work in an electrified mode, the steel wheel 14 is separated from the ground normally, and the reliability of the work of the grounding module 1 is guaranteed.
In this embodiment, the bypass switch N1 is a normally open resettable switch.
Based on the same inventive concept, as shown in fig. 6, the embodiment of the present invention further provides a method for active ground control by using the active safety ground device as described above, including the following steps:
when the running speed of the vehicle is zero, the control module controls the electromagnetic block 11 to be not electrified, the electromagnetic block 11 has no adsorption effect on the magnetization guide support seat 13, the elastic part 12 is not compressed and is in a natural state, the steel wheel 14 is in contact with the ground of the platform, and the active safety grounding of the vehicle is ensured when the vehicle is at the platform; when the running speed of the vehicle is not zero, the control module controls the electromagnetic block 11 to be electrified, the electromagnetic block 11 generates electromagnetic force and has adsorption effect on the magnetization guiding support seat 13, the elastic part 12 is compressed to be in a compressed state, the steel wheel 14 is separated from or not contacted with the ground, and the grounding module 1 is ensured to have no influence on the running of the vehicle when the vehicle is in a positive line state.
Example 2
The active safety grounding device provided by the embodiment of the invention is applied to an empty rail rubber-tyred vehicle, and two sets of active safety grounding devices are arranged on two sides of the bottom of each carriage, as shown in fig. 2 and 3.
Each set of active safety grounding device comprises a control module and a grounding module 1 arranged at the bottom of the carriage. The grounding module 1 comprises a driving motor, a screw rod assembly and a steel wheel 14; the output end of the driving motor is connected with a screw assembly, and the steel wheel 14 is arranged on the screw assembly. As shown in fig. 5, the control module includes a first relay and a second relay; the normally open contact K12 of the first relay is connected with the coil K21 of the second relay in series; the normally open contact K22 of the second relay is electrically connected with the electromagnetic coil of the electromagnetic block 11; the power-on/off of the coil K11 of the first relay is controlled by a TCMS system of the vehicle according to the state and/or the running speed of the vehicle, and the power-on/off of the coil K21 of the second relay is controlled by the opening and closing of the normally open contact K12 of the first relay.
When the vehicle is in an undrawn state, the TCMS system controls the coil K11 of the first relay to lose electricity, the normally open contact K12 of the first relay is kept to be disconnected, the coil K21 of the second relay is lost electricity, the normally open contact K22 of the second relay is kept to be disconnected, the driving motor is not electrified to work, the screw rod assembly does not move linearly, and at the moment, the steel wheel 14 is contacted with the ground of the platform, so that the ground of the vehicle is realized, the ground safety of the vehicle is ensured, and the potential difference of the vehicle is eliminated; when the vehicle is in a traction state, the TCMS system controls the coil K11 of the first relay to be electrified, the normally open contact K12 of the first relay is closed, the coil K21 of the second relay is electrified, the normally open contact K22 of the second relay is closed, the driving motor is electrified to work, and the driving motor controls the screw rod assembly to linearly move, so that the steel wheel 14 is controlled to linearly move, the steel wheel 14 is not contacted with or separated from the ground, the grounding module 1 has no influence on the normal running state of the vehicle, and safe running of the vehicle is ensured.
Based on the same inventive concept, as shown in fig. 6, the embodiment of the present invention further provides a method for active ground control by using the active safety ground device as described above, including the following steps:
when the vehicle is in an undrawn state, the control module controls the drive motor to be not electrified to work, the screw rod assembly does not move linearly, and the steel wheel 14 is contacted with the ground of the platform at the moment, so that the active safety grounding of the vehicle is ensured when the vehicle is at the platform; when the vehicle is in a traction state, the control module controls the driving motor to conduct power-on work, the driving motor controls the screw rod assembly to conduct linear motion, and accordingly the steel wheel 14 is controlled to conduct linear motion, the steel wheel 14 is not contacted with or separated from the ground, and the fact that the grounding module 1 does not affect the operation of the vehicle when the vehicle is in a positive line state is guaranteed.
Example 3
The active safety grounding device provided by the embodiment of the invention is applied to an empty rail rubber-tyred vehicle, and two sets of active safety grounding devices are arranged on two sides of the bottom of each carriage, as shown in fig. 2 and 3.
Each set of active safety grounding device comprises a control module and a grounding module 1 arranged at the bottom of the carriage. The grounding module 1 comprises a stepping motor, an electric telescopic rod which can stretch left and right and a steel wheel 14; the output end of the stepping motor is connected with an electric telescopic rod, and the steel wheel 14 is arranged on the electric telescopic rod. As shown in fig. 5, the control module includes a first relay and a second relay; the normally open contact K12 of the first relay is connected with the coil K21 of the second relay in series; the normally open contact K22 of the second relay is electrically connected with the electromagnetic coil of the electromagnetic block 11; the power-on/off of the coil K11 of the first relay is controlled by a TCMS system of the vehicle according to the state and/or the running speed of the vehicle, and the power-on/off of the coil K21 of the second relay is controlled by the opening and closing of the normally open contact K12 of the first relay.
When the vehicle is in an undrawn state and the running speed is zero, the TCMS system controls the coil K11 of the first relay to lose electricity, the normally open contact K12 of the first relay is kept to be disconnected, the coil K21 of the second relay is lost electricity, the normally open contact K22 of the second relay is kept to be disconnected, the stepping motor is not electrified to work, the electric telescopic rod does not do left-right telescopic movement, at the moment, the steel wheel 14 is in contact with the ground of the platform, the ground of the vehicle is realized, the ground safety of the vehicle is ensured, and the potential difference of the vehicle is eliminated; when the vehicle is in a traction state and the running speed is not zero, the TCMS system controls the coil K11 of the first relay to be electrified, the normally open contact K12 of the first relay is closed, the coil K21 of the second relay is electrified, the normally open contact K22 of the second relay is closed, the stepping motor is electrified to work, and the stepping motor controls the electric telescopic rod to do retraction movement, so that the steel wheel 14 is controlled to linearly move, the steel wheel 14 is not contacted with or separated from the ground, the grounding module 1 has no influence on the normal running state of the vehicle, the risk that the vehicle exceeds the line limit is avoided, and the safe running of the vehicle is ensured.
Based on the same inventive concept, as shown in fig. 6, the embodiment of the present invention further provides a method for active ground control by using the active safety ground device as described above, including the following steps:
when the vehicle is in an undrawn state and the running speed is zero, the control module controls the stepping motor to work without power, the electric telescopic rod does not do left-right telescopic operation, and at the moment, the steel wheel 14 is contacted with the ground of the platform, so that the active safety grounding of the vehicle is ensured when the vehicle is at the platform; when the vehicle is in a traction state and the movement speed is not zero, the control module controls the stepping motor to conduct power-on work, and the stepping motor controls the electric telescopic rod to conduct retraction movement, so that the steel wheel 14 is controlled to move linearly, the steel wheel 14 is not contacted with or separated from the ground, and the grounding module 1 is ensured to have no influence on the vehicle operation when the vehicle is in a positive line state.
The foregoing disclosure is merely illustrative of specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art will readily recognize that changes and modifications are possible within the scope of the present invention.
Claims (9)
1. The utility model provides an initiative safety earthing device, is applied to empty rail rubber tyer vehicle, all is equipped with at least one set in the both sides of every carriage bottom initiative safety earthing device, its characterized in that: each set of active safety grounding device comprises a control module and a grounding module arranged at the bottom of the carriage;
the grounding module comprises a driving assembly, a linear motion assembly and a steel wheel; the driving component is connected with the linear motion component; the steel wheel is arranged on the linear motion assembly; the output end of the control module is electrically connected with the driving assembly;
the control module controls the driving assembly to work according to the state and/or the running speed of the vehicle, so as to control the movement of the linear movement assembly, and further control the contact between the steel wheel and the ground;
the control module comprises a first relay and a second relay; the normally open contact of the first relay is connected with the coil of the second relay in series; the normally open contact of the second relay is electrically connected with the driving assembly; the power-on and power-off of the coil of the first relay is controlled by a TCMS system of the vehicle according to the state and/or the running speed of the vehicle, and the power-on and power-off of the coil of the second relay is controlled by the opening and closing of the normally open contact of the first relay.
2. The active safety ground device of claim 1, wherein: the driving component is an electromagnetic block, and the linear motion component comprises an elastic component and a magnetization guiding support seat; the electromagnetic block is connected with the magnetization guiding support seat through an elastic part, and the steel wheel is arranged on the magnetization guiding support seat; the output end of the control module is electrically connected with the electromagnetic coil of the electromagnetic block;
the control module controls whether the electromagnetic block is conducted or not according to the state and/or the running speed of the vehicle, and further controls the adsorption of the electromagnetic block on the magnetization guiding support seat, and further controls the contact between the steel wheel and the ground.
3. The active safety ground device of claim 2, wherein: the elastic component is a leaf spring or a coil spring.
4. The active safety ground device of claim 1, wherein: the driving assembly is a driving motor, and the linear motion assembly is a screw assembly; the output end of the driving motor is connected with the screw rod assembly, and the steel wheel is arranged on the screw rod assembly.
5. The active safety ground device of claim 1, wherein: the driving component is a stepping motor, and the linear motion component is an electric telescopic rod which can stretch left and right; the steel wheel is arranged on the electric telescopic rod.
6. The active safety ground device of claim 1, wherein: the control module further comprises a bypass switch, and the bypass switch is arranged on a driver's cab; one end of the bypass switch is connected with the positive electrode of the power supply, and the other end of the bypass switch is connected with the coil of the second relay.
7. The active safety ground device of claim 6, wherein: the bypass switch is a normally open resettable switch.
8. A method for active ground control using the active safety ground device of any one of claims 1-7, comprising the steps of:
when the vehicle is not towed and/or the running speed is zero, the control module controls the driving assembly to be not operated, controls the linear motion assembly to be not moved, and the steel wheel is contacted with the ground;
when the traction and/or running speed of the vehicle is not zero, the control module controls the driving assembly to be electrified to work, controls the linear motion assembly to retract and move, and the steel wheel is separated from or not contacted with the ground.
9. An empty rail rubber tyre vehicle, its characterized in that: comprising an active safety grounding device according to any one of claims 1-7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210846480.8A CN115158367B (en) | 2022-07-19 | 2022-07-19 | Empty rail rubber wheel vehicle and active safety grounding device and method thereof |
| PCT/CN2022/135756 WO2024016554A1 (en) | 2022-07-19 | 2022-12-01 | Rubber-tired sky train and active safety grounding device and method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210846480.8A CN115158367B (en) | 2022-07-19 | 2022-07-19 | Empty rail rubber wheel vehicle and active safety grounding device and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115158367A CN115158367A (en) | 2022-10-11 |
| CN115158367B true CN115158367B (en) | 2023-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210846480.8A Active CN115158367B (en) | 2022-07-19 | 2022-07-19 | Empty rail rubber wheel vehicle and active safety grounding device and method thereof |
Country Status (2)
| Country | Link |
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| CN (1) | CN115158367B (en) |
| WO (1) | WO2024016554A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115158367B (en) * | 2022-07-19 | 2023-06-13 | 中车株洲电力机车有限公司 | Empty rail rubber wheel vehicle and active safety grounding device and method thereof |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970003967Y1 (en) * | 1993-08-07 | 1997-04-24 | 현대정공 주식회사 | Earthing device for magnetic levitating train's body |
| GB2347125B (en) * | 1996-05-22 | 2000-11-29 | Rover Group | A vehicle suspension system |
| IL168846A (en) * | 2005-05-29 | 2010-02-17 | Ziv Maguz | Vehicle earthing device |
| JP2010254040A (en) * | 2009-04-22 | 2010-11-11 | Ihi Corp | Vehicle ground-contact detection device, method for the same, and vehicle |
| CN104375431A (en) * | 2013-08-12 | 2015-02-25 | 章学良 | Energy-saving switch device |
| CN206839699U (en) * | 2017-06-26 | 2018-01-05 | 杭州新宇机械制造有限公司 | A kind of milling machine with safety protective mechanisms |
| CN108055756A (en) * | 2017-12-19 | 2018-05-18 | 宁波沈南知识产权运营有限公司 | A kind of static grounding clamp of high penetrating power |
| CN208559324U (en) * | 2018-06-06 | 2019-03-01 | 西屋月台屏蔽门(广州)有限公司 | A kind of subway platform door track equipotential link structure |
| CN110797673A (en) * | 2018-08-01 | 2020-02-14 | 比亚迪股份有限公司 | Grounding device and grounding system of railway vehicle |
| CN109444633B (en) * | 2018-11-15 | 2020-06-23 | 中车株洲电力机车有限公司 | Rubber-tyred rail vehicle station-entering grounding safety monitoring system |
| CN109774391A (en) * | 2019-02-28 | 2019-05-21 | 山东东大动力科技有限公司 | Road and rail dual-purpose electric tractor car body and its tractor |
| CN210201122U (en) * | 2019-07-30 | 2020-03-27 | 洛阳前卫滑触线有限公司 | Sliding contact line current collector |
| CN211126137U (en) * | 2019-12-15 | 2020-07-28 | 雷小杰 | Grounding device |
| CN110834542B (en) * | 2019-12-16 | 2024-07-09 | 中铁工程机械研究设计院有限公司 | Intelligent grounding device of suspension type air rail train |
| CN211223050U (en) * | 2019-12-16 | 2020-08-11 | 中铁工程机械研究设计院有限公司 | Intelligent grounding device of suspension type air rail train |
| CN213565868U (en) * | 2020-10-30 | 2021-06-29 | 羿鹏轨道交通开发(上海)有限公司 | Step voltage eliminating device for suspension type monorail vehicle |
| CN115158367B (en) * | 2022-07-19 | 2023-06-13 | 中车株洲电力机车有限公司 | Empty rail rubber wheel vehicle and active safety grounding device and method thereof |
-
2022
- 2022-07-19 CN CN202210846480.8A patent/CN115158367B/en active Active
- 2022-12-01 WO PCT/CN2022/135756 patent/WO2024016554A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN115158367A (en) | 2022-10-11 |
| WO2024016554A1 (en) | 2024-01-25 |
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