CN110271426B - Electromagnetic vortex brake device - Google Patents
Electromagnetic vortex brake device Download PDFInfo
- Publication number
- CN110271426B CN110271426B CN201910679679.4A CN201910679679A CN110271426B CN 110271426 B CN110271426 B CN 110271426B CN 201910679679 A CN201910679679 A CN 201910679679A CN 110271426 B CN110271426 B CN 110271426B
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- hinge
- brake
- frame
- plate
- support frame
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- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000005284 excitation Effects 0.000 claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 13
- 229910052782 aluminium Inorganic materials 0.000 claims description 13
- 230000033001 locomotion Effects 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
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- 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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/28—Eddy-current braking
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
- H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
-
- 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
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
An electromagnetic eddy current brake device belongs to the technical field of high-speed train braking, and comprises an excitation coil unit, a lifting device, a braking force transmission device, a gap adjusting device and a supporting plate device, wherein the device has novel structure and clear working principle, the excitation unit is used for providing stable and reliable braking force, and an iron core and a magnetic yoke are integrally molded; the lifting device is used for bearing the resultant force of the gravity and electromagnetic suction force of the brake, the air cylinder has strong impact resistance, and the double hinge enables the piston of the air cylinder to only bear the force in the direction vertical to the rail; the braking device is utilized to transmit the braking force horizontal to the rail surface to the bogie, the lifting of the brake is not affected, and the supporting rod structure only bears horizontal force and can freely move in the vertical direction; the gap adjusting device can adjust the size of the gap, the space occupied by the device is small, and the gap adjusting operation is simple; the supporting plate device is utilized to provide support for the lifting device and the braking force transmission device, and the whole device is safe and reliable.
Description
Technical Field
The invention belongs to the technical field of high-speed train braking, relates to an electromagnetic eddy current braking device, and particularly relates to an electromagnetic eddy current braking device for high-speed train braking.
Background
At present, railway transportation in China rapidly develops, the speed of the train is gradually increased, the traffic of the train is increasingly increased, and the stability and the safety of the running of the train become the main research directions. Currently available technology enables rail trains to remain running at medium and low speeds, whereas when the trains run at high speeds, only non-stick braking can be used. At present, the common non-adhesive braking suitable for the high-speed rail train comprises vortex braking and magnetic track braking, but the friction coefficient of the contact surface of the magnetic track brake and the rail is greatly reduced while the high-speed running is ensured, so that the braking force is obviously insufficient, and the braking requirement cannot be met, and therefore, a special braking device is required to be designed to meet the braking requirement of the high-speed train.
Disclosure of Invention
The invention aims to provide an electromagnetic vortex brake device for the situation that the braking force of the current magnetic track brake cannot meet the braking requirement, and the electromagnetic vortex brake device further improves the safety performance of a mechanical device of the brake by adopting a structure of combining an excitation unit, a lifting device, a brake force transmission device, a gap adjusting device and a support plate device.
The technical scheme of the invention is as follows: an electromagnetic eddy current braking apparatus, characterized in that: the electromagnetic eddy current braking device consists of an excitation unit, a lifting device, a braking force transmission device, a gap adjusting device and a supporting plate device;
The excitation unit consists of an excitation coil, an iron core, a cross beam, an aluminum plate and a cover; the iron core is connected with the cover through bolts, the exciting coil is wound on the iron core, two ends of the cross beam are connected with the cover through bolts, and two sides of the aluminum plate are connected with the cover through bolts;
The lifting device consists of an air cylinder, a supporting plate and a first hinge; the air cylinder is fixedly arranged on the supporting plate, the first hinge is divided into a first upper hinge and a first lower hinge, the first upper hinge is connected with the first lower hinge through a flat head pin and a cotter pin, the air cylinder is connected with the first upper hinge through a pin shaft and a cotter pin, and the first lower hinge is fixedly arranged on the cover;
The braking force transmission device consists of a second hinge, a supporting rod, a side supporting frame, a flange plate and a spring; the second hinge is fixedly arranged below the supporting plate, the second hinge is connected with the supporting rod through a pin shaft and a cotter pin, the side supporting frame is fixedly arranged on the cover, the flange plate is divided into a first flange plate and a second flange plate, and the spring is arranged between the first flange plate and the second flange plate;
the gap adjusting device consists of a third hinge and a supporting frame; the third hinge is divided into a third upper hinge and a third lower hinge, the third upper hinge is connected with the third lower hinge through a flat head pin and a cotter pin, the third upper hinge is arranged on the support frame, and the third lower hinge is fixedly arranged on the cover;
The supporting plate device consists of a supporting plate and a beam frame; the beam frame is divided into an upper beam frame and a lower beam frame, the upper beam frame is connected with the lower beam frame through bolts, and the lower beam frame is fixedly arranged on the supporting plate;
The device comprises a brake device, a brake force transmission device, a brake unit, a support plate device, a gap adjusting device, a support plate device, a support frame, a support plate device and a train wheel shaft.
The bottom of the exciting coil is overlapped with the bottom of the iron core, and the arrangement modes are all arranged alternately according to the N pole and the S pole.
The bottom of the aluminum plate is overlapped with the bottom of the exciting coil, the aluminum plate and the cover enclose the exciting coil in the middle, the exciting coil is protected from being interfered by external environment, and the exciting unit is prevented from adsorbing external impurities.
The support rod is in sliding fit with the side support frame and is used for transmitting braking force.
The support rod is equipped with the locating key below, is equipped with the cylindric lock in bracing piece and the locating key, and first ring flange contacts with side support frame lower extreme, and the second ring flange sets up on the locating key, and the spring is in order to slow down the impact force of side support frame to the locating key, and the while is alleviated the train and is vibrated when moving, avoids the rigidity of biography power piece to break.
The support frame divide into left support frame and right support frame, adopts bolted connection between left support frame and the right support frame, is equipped with the rubber circle around the bolt, prevents the structural damage.
The upper end of the lower hinge is in clearance fit with the supporting frame, so that the movement of the brake in the vertical direction can be limited.
The gasket is arranged between the support frame and the third upper hinge, the size of the gap can be adjusted by replacing the gasket, and the gasket adopts an open type design, so that the gasket is convenient to detach and replace.
The beneficial effects of the invention are as follows: the electromagnetic vortex braking device provided by the invention has the advantages that the structure is novel, the working principle is clear, the excitation unit is used for providing stable and reliable braking force, the iron core and the magnetic yoke are integrally molded, the lifting device is used for bearing the resultant force of the gravity and the electromagnetic suction force of the brake, the air cylinder has strong impact resistance and is not easy to damage, the piston of the air cylinder only bears the force vertical to the rail direction, the braking device is used for transmitting the braking force horizontal to the rail surface to the bogie, the lifting of the brake is not influenced, the telescopic rod structure is only used for bearing the horizontal force, the gap can be freely moved in the vertical direction, the gap adjusting device can be used for adjusting the gap size, the occupied space of the device is smaller, the gap adjusting operation is simple, the supporting plate device is used for providing support for the lifting device and the braking force transmitting device, and the whole device is safe and reliable; the invention meets the braking requirement of the high-speed train and further improves the safety performance of the mechanical device capable of braking.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
FIG. 2 is a schematic diagram of the exciting unit in the present invention;
FIG. 3 is a schematic view of a lifting device according to the present invention;
FIG. 4 is a schematic view of a brake force transfer device according to the present invention;
FIG. 5 is a schematic diagram of a gap adjusting device according to the present invention;
fig. 6 is a schematic structural view of the support plate apparatus of the present invention.
In the figure: excitation coil 11, iron core 12, beam 13, aluminum plate 14, cover 15, cylinder 21, support plate 22, first upper hinge 231, first lower hinge 232, second hinge 31, support rod 32, side support frame 33, first flange 341, flange 342, spring 35, third upper hinge 411, third lower hinge 412, left support frame 421, right support frame 422, upper beam frame 511, lower beam frame 512, positioning key 6, cylindrical pin 7, rubber ring 8, gasket 9, flat head pin 101, flat head pin 102, cotter pin 111, cotter pin 112, cotter pin 113, cotter pin 114, pin 121, pin 122.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
As shown in fig. 1, an electromagnetic eddy current braking device comprises an excitation unit 1, a lifting device 2, a braking force transmission device 3, a gap adjusting device 4 and a supporting plate device 5; the exciting unit 1 is positioned at the lowest end of the braking device, the upper end of the exciting unit is movably connected with the lower end of the lifting device 2, the lifting device 2 is fixedly arranged on the supporting plate device 5, the braking force transmission device 3 is arranged on the inner side of the exciting unit 1, the upper end of the braking force transmission device is hinged with the supporting plate device 5, the lower end of the braking force transmission device is in sliding connection with the exciting unit 1, the gap adjusting device 4 is arranged above the exciting unit 1 and is respectively connected with a train wheel shaft through the supporting frame 42, and the supporting plate device 5 is fixedly connected with a cross beam of the train bogie through the cross beam frame 51.
As shown in fig. 2 to 4, an electromagnetic eddy current braking apparatus, an exciting unit 1 is composed of an exciting coil 11, an iron core 12, a cross beam 13, an aluminum plate 14 and a cover 15. The lifting device 2 consists of a cylinder 21, a support plate 22 and a first hinge 23. The brake force transmission device 3 consists of a second hinge 31, a support bar 32, a side support 33, a flange 34 and a spring 35.
As shown in fig. 2-5, an electromagnetic eddy current braking device, the gap adjusting device 4 is composed of a third hinge 41 and a supporting frame 42, and the supporting plate device 5 is composed of a supporting plate 51 and a beam frame 52. The iron core 12 is connected with the cover 15 by bolts, two ends of the cross beam 13 are connected with the cover 15 by bolts, and two sides of the aluminum plate 14 are connected with the cover 15 by bolts; the cylinder 21 is fixedly arranged on the supporting plate 22, the first hinge 23 is divided into an upper hinge 231 and a lower hinge 232, the upper hinge 231 and the lower hinge 232 are connected with the cotter pin 111 by adopting the flat head pin 101, the cylinder 21 and the upper hinge 231 are connected with the cotter pin 112 by adopting the pin shaft 121, and the lower hinge 232 is fixedly arranged on the cover 15; the second hinge 31 is fixedly arranged below the supporting plate 22, the second hinge 31 and the supporting rod 32 are connected with the cotter pin 113 by adopting a pin shaft 122, the side support frame 33 is fixedly arranged on the cover 15, the flange is divided into a first flange 341 and a second flange 342, and the spring 35 is arranged between the first flange 341 and the second flange 342; the third hinge 41 is divided into an upper hinge 411 and a lower hinge 412, the upper hinge 411 and the lower hinge 412 are connected with the cotter pin 114 by adopting a flat head pin 102, the upper hinge 411 is fixedly arranged on the support frame 42, and the lower hinge 412 is arranged on the cover 15; the beam frame 51 is divided into an upper beam frame 511 and a lower beam frame 512, the upper beam frame 511 and the lower beam frame 512 are connected by bolts, and the lower beam frame 512 is fixedly arranged on the support plate 22.
As shown in fig. 1-6, in an electromagnetic eddy current braking device, the bottom of an exciting coil 11 coincides with the bottom of an iron core 12, and the arrangement mode is that the exciting coil and the iron core are arranged alternately according to an N pole and an S pole. The bottom of the aluminum plate 14 is overlapped with the bottom of the exciting coil 11, the aluminum plate 14 and the cover 15 enclose the exciting coil 11 in the middle, the exciting coil 11 is protected from being interfered by external environment, and the exciting unit is prevented from adsorbing external impurities. A gap is left between the support bar 32 and the side support frame 33 to prevent the bogie from damaging the structure of the force transmission device when the bogie is slightly swayed. The locating key 6 is arranged below the supporting rod 32, the cylindrical pin 7 is arranged in the supporting rod 32 and the locating key 6, the second flange 342 is arranged on the locating key 6, and the spring 35 can slow down the impact force of the side supporting frame 33 on the locating key 6. The support frame 42 is divided into a left support frame 421 and a right support frame 422, the left support frame 421 and the right support frame 422 are connected by bolts, and rubber rings 8 are arranged around the bolts to prevent structural damage. The upper end of the lower hinge 412 is in clearance fit with the support frame 42 to limit the movement of the stopper in the vertical direction; the gasket 9 is arranged between the support frame 42 and the upper hinge 411, and can be replaced to adjust the gap size, and the gasket adopts an open type design, so that the disassembly and the replacement are convenient.
As shown in fig. 1 to 6, an electromagnetic eddy current brake apparatus works as follows: when the motion train needs to be braked, the lifting device 2 is inflated to put down the exciting unit 1, the exciting unit 1 is electrified to generate vortex on the rail, the rail generating vortex generates electromagnetic braking force to the exciting unit 1, and the electromagnetic braking force is sequentially transmitted to the cross beam of the bogie of the train through the brake force transmission device 3 and the support plate device 5. When the exciting unit 1 is large in the rail clearance, the braking clearance is adjusted by increasing or decreasing the thickness of the spacer 9 between the supporting frame 42 and the upper hinge 411. When the electromagnetic vortex brake device does not work, the exciting unit 1 is powered off, and the lifting device 2 discharges air to lift the exciting unit 1 away from the rail.
The invention has novel structure and clear working principle; the excitation unit is utilized to provide stable and reliable braking force, and the iron core and the magnetic yoke are integrally molded, so that the structure is simple; the lifting device is used for bearing the resultant force of the gravity and electromagnetic suction force of the brake, the air cylinder has strong impact resistance, and the double hinges are not easy to damage, so that the piston of the air cylinder only bears the force in the direction vertical to the rail; the braking device is utilized to transmit the braking force horizontal to the rail surface to the bogie, the lifting of the brake is not affected, and the telescopic rod structure only bears horizontal force and can freely move in the vertical direction; the gap adjusting device can adjust the size of the gap, the space occupied by the device is small, and the gap adjusting operation is simple; the supporting plate device is utilized to provide support for the lifting device and the braking force transmission device, and the whole device is safe and reliable.
Claims (2)
1. An electromagnetic eddy current braking apparatus, characterized in that: the electromagnetic eddy current braking device consists of an excitation unit (1), a lifting device (2), a braking force transmission device (3), a gap adjusting device (4) and a supporting plate device (5);
the excitation unit (1) consists of an excitation coil (11), an iron core (12), a cross beam (13), an aluminum plate (14) and a cover (15); the iron core (12) is connected with the cover (15) through bolts, the exciting coil (11) is wound on the iron core, two ends of the cross beam (13) are connected with the cover (15) through bolts, and two sides of the aluminum plate (14) are connected with the cover (15) through bolts;
The lifting device (2) consists of a cylinder (21), a supporting plate (22) and a first hinge (23); the cylinder (21) is fixedly arranged on the supporting plate (22), the first hinge (23) is divided into a first upper hinge (231) and a first lower hinge (232), the first upper hinge (231) is connected with the first lower hinge (232) through a first flat head pin (101) and a first cotter pin (111), the cylinder (21) is connected with the first upper hinge (231) through a first pin shaft (121) and a second cotter pin (112), and the first lower hinge (232) is fixedly arranged on the cover (15);
The braking force transmission device (3) consists of a second hinge (31), a supporting rod (32), a side supporting frame (33), a flange plate (34) and a spring (35); the second hinge (31) is fixedly arranged below the supporting plate (22), the second hinge (31) is connected with the supporting rod (32) through a second pin shaft (122) and a third opening pin (113), the side supporting frame (33) is fixedly arranged on the cover (15), the flange plate (34) is divided into a first flange plate (341) and a second flange plate (342), and the spring (35) is arranged between the first flange plate (341) and the second flange plate (342);
The gap adjusting device (4) consists of a third hinge (41) and a supporting frame (42); the third hinge (41) is divided into a third upper hinge (411) and a third lower hinge (412), the third upper hinge (411) is connected with the third lower hinge (412) through a second flat pin (102) and a fourth opening pin (114), the third upper hinge (411) is arranged on the supporting frame (42), and the third lower hinge (412) is fixedly arranged on the cover (15);
The supporting plate device (5) consists of a supporting plate (22) and a beam frame (51); the beam frame (51) is divided into an upper beam frame (511) and a lower beam frame (512), the upper beam frame (511) and the lower beam frame (512) are connected through bolts, and the lower beam frame (512) is fixedly arranged on the supporting plate (22);
The device comprises a brake device, a brake force transmission device (3), a brake unit (1), a gap adjusting device (4), a support frame (42), a support plate device (5) and a train wheel shaft, wherein the brake unit (1) is arranged at the lowest end of the brake device, the upper end of the brake device is movably connected with the lower end of the lifting device (2), the lifting device (2) is fixedly arranged on the support plate device (5), the brake force transmission device (3) is arranged at the inner side of the brake unit (1), the upper end of the brake force transmission device is hinged with the support plate device (5), the lower end of the brake force transmission device is slidably connected with the brake unit (1), the gap adjusting device (4) is arranged above the brake unit (1) and is respectively connected with the train wheel shaft through the support frame (42), and the support plate device (5) is fixedly connected with a cross beam of a train bogie through a cross beam frame (51);
The bottom of the aluminum plate (14) is overlapped with the bottom of the exciting coil (11), the exciting coil (11) is surrounded by the aluminum plate (14) and the cover (15), the exciting coil (11) is protected from being interfered by external environment, and the exciting unit is prevented from adsorbing external impurities;
the support rods (32) are in sliding fit with the side support frames (33) so as to transmit braking force;
A positioning key (6) is arranged below the supporting rod (32), cylindrical pins (7) are arranged in the supporting rod (32) and the positioning key (6), a first flange plate (341) is in contact with the lower end of the side support frame (33), a second flange plate (342) is arranged on the positioning key (6), and a spring (35) is used for relieving the impact force of the side support frame (33) on the positioning key (6), and meanwhile, vibration is relieved when a train moves, so that rigid damage of a force transmission piece is avoided;
The support frame (42) is divided into a left support frame (421) and a right support frame (422), the left support frame (421) and the right support frame (422) are connected by bolts, and rubber rings (8) are arranged around the bolts to prevent structural damage;
The upper end of the third lower hinge (412) is in clearance fit with the support frame (42) to limit the movement of the brake in the vertical direction;
A gasket (9) is arranged between the support frame (42) and the third upper hinge (411), the size of the gap is adjusted by replacing the gasket, and the gasket adopts an open type design, so that the gasket is convenient to detach and replace.
2. An electromagnetic eddy current braking apparatus as claimed in claim 1 wherein: the bottom of the exciting coil (11) is overlapped with the bottom of the iron core (12), and the arrangement modes are all arranged alternately according to N poles and S poles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910679679.4A CN110271426B (en) | 2019-07-26 | 2019-07-26 | Electromagnetic vortex brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910679679.4A CN110271426B (en) | 2019-07-26 | 2019-07-26 | Electromagnetic vortex brake device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110271426A CN110271426A (en) | 2019-09-24 |
| CN110271426B true CN110271426B (en) | 2024-04-26 |
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ID=67965339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910679679.4A Active CN110271426B (en) | 2019-07-26 | 2019-07-26 | Electromagnetic vortex brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110271426B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884478B (en) * | 2020-07-29 | 2022-11-01 | 扬州大学 | Compact electromagnetic eddy current brake device |
| CN112268085B (en) * | 2020-10-26 | 2022-03-18 | 扬州大学 | Automatic gap adjusting device for eddy current brake |
| CN112298268B (en) * | 2020-10-26 | 2022-04-15 | 扬州大学 | Compact electromagnetic eddy current gap-adjusting brake device |
| CN113120025B (en) * | 2021-05-13 | 2024-07-02 | 中国铁道科学研究院集团有限公司 | Limit switch device for train magnetic track braking and vortex braking |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107539335A (en) * | 2017-09-14 | 2018-01-05 | 中车青岛四方车辆研究所有限公司 | Track train eddy-current brake and track train |
| CN107554550A (en) * | 2017-09-14 | 2018-01-09 | 中车青岛四方车辆研究所有限公司 | Track train eddy-current brake and track train |
| CN210437019U (en) * | 2019-07-26 | 2020-05-01 | 扬州大学 | Electromagnetic eddy current brake device |
-
2019
- 2019-07-26 CN CN201910679679.4A patent/CN110271426B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107539335A (en) * | 2017-09-14 | 2018-01-05 | 中车青岛四方车辆研究所有限公司 | Track train eddy-current brake and track train |
| CN107554550A (en) * | 2017-09-14 | 2018-01-09 | 中车青岛四方车辆研究所有限公司 | Track train eddy-current brake and track train |
| CN210437019U (en) * | 2019-07-26 | 2020-05-01 | 扬州大学 | Electromagnetic eddy current brake device |
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| Publication number | Publication date |
|---|---|
| CN110271426A (en) | 2019-09-24 |
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