CN101468609A - Superconduction eddy-current brake device of track multiple unit - Google Patents
Superconduction eddy-current brake device of track multiple unit Download PDFInfo
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- CN101468609A CN101468609A CNA2008100576650A CN200810057665A CN101468609A CN 101468609 A CN101468609 A CN 101468609A CN A2008100576650 A CNA2008100576650 A CN A2008100576650A CN 200810057665 A CN200810057665 A CN 200810057665A CN 101468609 A CN101468609 A CN 101468609A
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Abstract
The invention provides a superconducting eddy-current braking device for a rail motor car, which comprises a braking controller with an excitation power supply and an eddy-current braking device, wherein an iron core column of an electromagnet of the eddy-current braking device adopts an iron core column of a superconducting electromagnet, a coil of the superconducting electromagnet is connected with the excitation power supply, the iron core column of the superconducting electromagnet is arranged on a steering frame of a carriage, and an air gap is reserved between the bottom plane of the iron core column of the superconducting electromagnet and the upper surfaces of steel rails of a rail. The superconducting eddy-current braking device for the rail motor car has the advantages that the eddy-current braking is non-contact electromagnetic braking, a superconducting electromagnetic system is adopted, the electric resistance of the coil approaches to zero, and the large current can be conducted into the coil, so the produced magnetic-field intensity is also large, and the produced electromagnetic force of eddy-current braking is also large. Compared with the prior art, the device has the advantages of small volume, light weight, and small consumption of electric energy, greatly improves the reliability and the service life, and can be widely applied to eddy-current braking technology of rail motor cars (such as trains, subways, city trains, tram cars and so on).
Description
Technical field
The present invention relates to brake equipment, particularly relate to a kind of superconduction eddy-current brake device of track multiple unit.
Background technology
Train foundation brake, rheostatic brake and regenerative brake are mostly adopted in traditional track motor braking.These brake mode finally all depend on the binding force between wheel rim and rail, and just friction force is realized braking.Friction braking exists between wheel track and the slip between other brake components inevitably, causes heating and wearing and tearing.This just needs running check inevitably and changes the brake component that is worn, and has increased the input of human and material resources, thereby has improved operation cost.Then more outstanding for these defectives of high-speed track motor-car (as: train, subway, subway, tramway train or the like).
After the eighties, the research that the eddy current that Germany, France, Japan have begun to utilize electromagnet to produce at rail level is in succession braked the train of high-speed cruising.The principle of this High-Speed Eddy Braking is: be suspended under the bogie truck electromagnet that keeps certain air gap with rail level and pass to DC current, can in track, produce eddy current, under the effect of eddy current magnetic flux, the magnetic flux that the magnetic flux distortion of normal distribution distributes for oblique line, the magnetic flux that oblique line distributes is decomposed into perpendicular to rail level and two flux component that are parallel to rail level, the former attracts rail, the train adhesion weight is increased, help traditional track motor braking, the latter is eddy current brake just, act on the train that advances by electromagnetic force between train and the track, train braking is slowed down.Eddy current brake is contactless electromagnetic force braking, so be swift in response.Owing to do not have the friction braking parts, so reliability and life-span all greatly improve.But along with track motor speed improves constantly, load carrying ability constantly increases, and the braking force that needs is also increasing.In order to improve electromagnetic system power, strengthening magnetic-field intensity and increasing eddy current brake device distributed quantity becomes main method.Can make the eddy current brake device volume increasing and strengthen magnetic-field intensity, on motor-car, be difficult to realize.Such as the medium-sized magnet of one 5 special Lars, conventional electromagnet weight can reach 20 tons, and only several kilograms of superconducting magnets.
Summary of the invention
Purpose of the present invention is exactly in order to overcome above defective, and the superconduction eddy-current brake device of track multiple unit that a kind of electric energy loss is little, electromagnetic eddy current braking power is big is provided.
For achieving the above object, superconduction eddy-current brake device of track multiple unit provided by the invention, comprise a brake controller and be installed in eddy current brake device between track motor railway carriage bogie truck and the wheel, described brake controller is provided with excitation source, described eddy current brake device is provided with magnet coil and electromagnet core post thereof, wherein said magnet coil adopts the superconducting magnetic iron coil, described electromagnet core post adopts the superconducting electromagnet core limb, described superconducting magnetic iron coil links to each other with described excitation source, described superconducting electromagnet core limb is installed on the described railway carriage bogie truck, has air gap between the base plane of described superconducting electromagnet core limb and the upper surface of railway track.
Superconduction eddy-current brake device of track multiple unit of the present invention, wherein said eddy current brake device also comprises low-temperature (low temperature) vessel and cooling intallation, described superconducting magnetic iron coil places low-temperature (low temperature) vessel, described low-temperature (low temperature) vessel communicates with the cooling intallation circulation by pipeline, and described cooling intallation is installed on the motor-car railway carriage bogie truck.
Superconduction eddy-current brake device of track multiple unit of the present invention, the DC injection braking electric current of wherein said superconducting magnetic iron coil is 800-1000A.
The advantage of superconduction eddy-current brake device of track multiple unit of the present invention is: because eddy current brake is contactless electromagnetic force braking, and adopted the superconducting magnetic system, superconducting electromagnet itself is owing to the superconduction of coil, and coil resistance levels off to zero, so the electric energy loss of superconducting electromagnet own is minimum; Because the superconduction of coil, so can pass to very large electric current in the coil, therefore also very big of the magnetic-field intensity that produces like this, just can produce very large eddy current brake electromagnetic force.With respect to conventional electromagnet, produce the magnetic field of same intensity, the superconducting magnet volume is little, in light weight, and the loss electric energy is also little, reliability and life-span greatly improve, and can be widely used in the eddy current brake technology of track motor (as: train, subway, subway, tramway train etc.).
The present invention is described in detail with reference to accompanying drawing below in conjunction with embodiment.
Description of drawings
Fig. 1 is the scheme drawing of superconduction eddy-current brake device of track multiple unit of the present invention;
Fig. 2 is superconduction cooling system and excitation source wiring schematic diagram.
The specific embodiment
With reference to Fig. 1, be example with the track motor, 1 is that railway track, 2 is that track motor wheel, 3 is that superconducting magnetic iron coil, 4 is that superconducting electromagnet core limb, 5 is that track motor bogie truck, 6 is air gap between superconducting electromagnet core limb and railway track among the figure.
Superconduction eddy-current brake device of track multiple unit of the present invention comprises brake controller and eddy current brake device, and brake controller is provided with excitation source 8, and the eddy current brake device is installed between track motor railway carriage bogie truck 5 and the wheel 2.Magnet coil adopts superconducting magnetic iron coil 3, the electromagnet core post adopts superconducting electromagnet core limb 4, superconducting magnetic iron coil 3 links to each other with excitation source 8, superconducting electromagnet core limb 4 is installed on the railway carriage bogie truck 5, has air gap 6 between the upper surface of the base plane of superconducting electromagnet core limb 4 and railway track 1.
With reference to Fig. 2, in superconduction cooling system and excitation source wiring schematic diagram, 3 is that superconducting magnetic iron coil, 4 is that superconducting electromagnet core limb, 7 is that low-temperature (low temperature) vessel, 8 is that excitation source, 9 is cooling intallation.Wherein, the core construction of superconducting electromagnet core limb 4 uses is identical with the core construction that conventional electromagnet uses.Superconducting magnetic iron coil 3 leads use superconductor Nb
3S
nBand is made.In other embodiment of superconduction eddy-current brake device of track multiple unit of the present invention, superconducting magnetic iron coil 3 leads also can adopt other superconductor.
Because the DC injection braking electric current of superconducting magnetic iron coil 3 reaches 800-1000A, so the eddy current brake device is provided with cooling intallation 9.Superconducting magnetic iron coil 3 places the inner low-temperature (low temperature) vessel 7 of liquid helium that be, and low-temperature (low temperature) vessel 7 and cooling intallation 9 are connected by pipeline, make the liquid nitrogen circulation, are in superconducting state with maintenance superconducting magnetic iron coil 3 always.Cooling intallation 9 is placed on the motor-car.Excitation source 8 under superconducting magnetic iron coil 3 and the normal temperature couples together by a pair of current feed.Excitation source 8 also is placed on the motor-car.Make the superconducting magnetic iron coil be in the cooling intallation of superconducting state and how to produce superconducting magnetic iron coil straight-though excitation source, all adopt present known equipment.
Below the working process of superconduction eddy-current brake device of track multiple unit of the present invention is explained.
When the train of motion need be braked when stopping, pass to direct current (DC) in the superconducting magnetic iron coil 3, air gap 6 forms closed magnetic circuits through between superconducting electromagnet core limb 4, track motor bogie truck 5, two track motor wheels 2 and railway track 1 and superconducting electromagnet core limb and railway track.Suspension is fixed on the superconducting electromagnet that bogie truck 5 times keeps certain air gap 6 with rail level 1 and pass to DC current in superconducting magnetic iron coil 3, can in track, produce eddy current, like this, the very large eddy current brake electromagnetic force that acts on 1 of superconducting electromagnet core limb 4 and railway track stops train, its eddy current brake electromagnetic force is very big, electromagnetic force with respect to routine techniques produces same eddy current brake, the superconducting magnet volume of superconduction eddy-current brake device of track multiple unit of the present invention is little, in light weight, the loss electric energy is also little, has shown good performance.
Above-described embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; do not breaking away under the prerequisite that the present invention relates to spirit; various distortion and improvement that the common engineering staff in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (3)
1, a kind of superconduction eddy-current brake device of track multiple unit, comprise a brake controller and be installed in track motor railway carriage bogie truck (5) and wheel (2) between the eddy current brake device, described brake controller is provided with excitation source (8), described eddy current brake device is provided with magnet coil and electromagnet core post thereof, it is characterized in that: wherein said magnet coil adopts superconducting magnetic iron coil (3), described electromagnet core post adopts superconducting electromagnet core limb (4), described superconducting magnetic iron coil (3) links to each other with described excitation source (8), described superconducting electromagnet core limb (4) is installed on the described railway carriage bogie truck (5), has air gap (6) between the upper surface of the base plane of described superconducting electromagnet core limb (4) and railway track (1).
2. superconduction eddy-current brake device of track multiple unit according to claim 1, it is characterized in that: wherein said eddy current brake device also comprises low-temperature (low temperature) vessel (7) and cooling intallation (9), described superconducting magnetic iron coil (3) places low-temperature (low temperature) vessel (7), described low-temperature (low temperature) vessel (7) communicates with cooling intallation (9) circulation by pipeline, and described cooling intallation (9) is installed on the motor-car railway carriage bogie truck (5).
3. superconduction eddy-current brake device of track multiple unit according to claim 1 and 2 is characterized in that: the DC injection braking electric current of wherein said superconducting magnetic iron coil (3) is 800-1000A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100576650A CN101468609A (en) | 2008-02-04 | 2008-02-04 | Superconduction eddy-current brake device of track multiple unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100576650A CN101468609A (en) | 2008-02-04 | 2008-02-04 | Superconduction eddy-current brake device of track multiple unit |
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| Publication Number | Publication Date |
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| CN101468609A true CN101468609A (en) | 2009-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100576650A Pending CN101468609A (en) | 2008-02-04 | 2008-02-04 | Superconduction eddy-current brake device of track multiple unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109102985A (en) * | 2018-07-23 | 2018-12-28 | 中国科学院合肥物质科学研究院 | A kind of bullet train eddy-current brake superconducting magnet |
| CN109109670A (en) * | 2018-07-23 | 2019-01-01 | 中国科学院合肥物质科学研究院 | A kind of bullet train superconduction eddy-current brake |
| CN113734208A (en) * | 2021-08-24 | 2021-12-03 | 青岛中车四方轨道车辆有限公司 | Rail transit traction vehicle |
-
2008
- 2008-02-04 CN CNA2008100576650A patent/CN101468609A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109102985A (en) * | 2018-07-23 | 2018-12-28 | 中国科学院合肥物质科学研究院 | A kind of bullet train eddy-current brake superconducting magnet |
| CN109109670A (en) * | 2018-07-23 | 2019-01-01 | 中国科学院合肥物质科学研究院 | A kind of bullet train superconduction eddy-current brake |
| WO2020020173A1 (en) * | 2018-07-23 | 2020-01-30 | 中国科学院合肥物质科学研究院 | Superconducting eddy current brake for high-speed train |
| WO2020020168A1 (en) * | 2018-07-23 | 2020-01-30 | 中国科学院合肥物质科学研究院 | Superconducting magnet for eddy current braking of high-speed train |
| CN109102985B (en) * | 2018-07-23 | 2020-06-23 | 中国科学院合肥物质科学研究院 | Superconducting magnet for eddy current braking of high-speed train |
| CN109109670B (en) * | 2018-07-23 | 2021-06-29 | 中国科学院合肥物质科学研究院 | Superconducting eddy current brake for high-speed train |
| US11189410B2 (en) | 2018-07-23 | 2021-11-30 | Hefei Institutes Of Physical Science, Chinese Academy Of Sciences | Superconducting magnet for eddy-current braking for high-speed trains |
| US11904729B2 (en) | 2018-07-23 | 2024-02-20 | Hefei Institutes Of Physical Science, Chinese Academy Of Sciences | Superconducting eddy-current brake for high- speed train |
| CN113734208A (en) * | 2021-08-24 | 2021-12-03 | 青岛中车四方轨道车辆有限公司 | Rail transit traction vehicle |
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Open date: 20090701 |