CN101719714A - Eddy current retarder of magnetic track of railway vehicle - Google Patents
Eddy current retarder of magnetic track of railway vehicle Download PDFInfo
- Publication number
- CN101719714A CN101719714A CN200910213024A CN200910213024A CN101719714A CN 101719714 A CN101719714 A CN 101719714A CN 200910213024 A CN200910213024 A CN 200910213024A CN 200910213024 A CN200910213024 A CN 200910213024A CN 101719714 A CN101719714 A CN 101719714A
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- magnet
- retarder
- eddy current
- permanent magnet
- yoke
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Abstract
The invention discloses an eddy current retarder of a magnetic track of a railway vehicle, comprising a permanent magnet, an iron core and a magnet yoke. The iron core is provided with a winding, the magnet yoke is near to an iron rail, the permanent magnet, a magnet insulation material and a magnet conduction material are connected and abreast arranged at one end of a support, the other end of the support is connected with a piston, pistons are symmetrically placed at the two ends of an air cylinder, the air cylinder is connected with a movable groove, stator iron cores are embedded at the two sides of the movable groove, one end of the iron core is connected with the magnetic yoke, and one end of the magnet yoke is embedded in the movable groove. The invention integrates the advantages of the eddy current retarder and a permanent magnet eddy retarder, realizes closed magnetic circuits of the eddy current retarder and the permanent magnet eddy retarder through moving the support with the permanent magnet, the magnet insulation material and the magnet conduction material, realizes the switch between two operation states of the eddy current retarder and the permanent magnet eddy retarder on the railway vehicles, adjusts retardation brake torque, reduces the manufacture and operation cost, and can be applied to vehicles of urban light rails, high speed trains, magnetic suspension trains and the like.
Description
Technical field
The present invention relates to a kind of train auxiliary braking retarder, relate in particular to permanent-magnet eddy current retarder and current vortex retarder.
Background technology
At present, track traffics such as intercity bullet train, subway, light rail demonstrate irreplaceable effect day by day.Along with the speed-raising of train, fail safe is also had higher requirement to rail vehicle.For the deficiency of the fail safe that solves the rail vehicle friction catch, need to adopt complemental brake system.Wherein the permanent magnetism magnetic rail braking has following advantage: permanent magnet itself can not generate heat, safeguard simply, consumption is low, the high speed braking ability is good, realizes lightweight and miniaturization etc. simultaneously easily.Simultaneously, it also has following deficiency: because can not that works comes the generation of controlling magnetic field power by changing size of current and magnetic pole set number as electromagnet, so the braking moment that varies in size can not be provided according to the needs of rail vehicle actual conditions.
Technology of stepless is important developing direction of current vortex retarder, promptly regulate the generation that the size of current in the magnet exciting coil is come controlling magnetic field by electronic-controlled installation, thereby make the braking moment that is produced change continuously, to adapt to the brake request of rail vehicle better.
Summary of the invention
The objective of the invention is to propose a kind of compact conformation, simple to operate, track permanent-magnet eddy current retarder that the continually varying braking moment can be provided according to the needs of rail vehicle actual conditions.
The technical solution used in the present invention is: comprise permanent magnet, iron core and yoke, has winding on the iron core, yoke is near rail, permanent magnet, NULL and permeability magnetic material are connected and are arranged side by side in support one end, and the other end of support connects piston, and the piston symmetry is placed on the cylinder two ends, cylinder connects loose slot, the two sides of loose slot are embedded with stator core, and iron core one end connects yoke, and yoke one end is embedded in the loose slot.
The invention has the beneficial effects as follows:
1, combine the advantage of current vortex retarder and permanent-magnet eddy current retarder, have permanent magnet by moving, the support of NULL and permeability magnetic material is realized the closed magnetic circuit of current vortex retarder and permanent-magnet speed buffer, and in the switching that realizes on the rail vehicle between current vortex retarder and two kinds of operating states of permanent-magnet eddy current retarder, by changing cylinder air pressure the support level of fixed permanent magnet is moved, thereby regulate the permanent-magnet eddy current retarder braking moment, and the decision eddy current retarder of magnetic track is operated in current vortex retarder still in the operating state of permanent-magnet eddy current retarder.
2, switch simply, control is simple, and slow braking moment is adjustable, prolongs life-span operating time of eddy current retarder, has reduced manufacturing and operating cost.
3, improved the service behaviour of braking system, on vehicles such as urban light rail, bullet train, magnetic suspension train, used.
Description of drawings
Fig. 1 is a structure chart of the present invention.
Fig. 2 is the half-sectional view of Fig. 1.
Fig. 3 is Fig. 1 magnetic circuit schematic diagram.
Among the figure: 11. rails; 21. yoke; 22. winding; 23. iron core; 24. cylinder; 25. gas port; 26. loose slot; 31. permanent magnet; 32. support; 33. NULL; 34. permeability magnetic material; 35. piston; 41. spring.
Embodiment
As Fig. 1,2, this retarder is linked together by 2 loose slots 26 and middle cylinder 24, the permanent magnet 31 of square, NULL 33 and permeability magnetic material 34 threes link together and are placed side by side, be placed in the loose slot 26 after the mode of being stepped up up and down by support 32 1 ends is fixing, the other end of support 32 connects piston 35 by the column type connecting rod, piston 35 symmetries are placed on cylinder 24 two ends, support 32 can be in loose slot 26 horizontal rectilinear motion, piston 35 can be in cylinder 24 horizontal rectilinear motion, thereby drive permanent magnet 31, NULL 33 and permeability magnetic material 34 threes straight line in the horizontal direction move around.Support 32 adopts non-magnet material, and permanent magnet 31 adopts the rare earth material neodymium iron boron to make.。
Be embedded with stator core 23 in the two sides of loose slot 26, be wound with winding 22 on the iron core 23, yoke 21 is near rail 11, and iron core 23 1 ends connect yoke 21, one end of yoke 21 embeds in the loose slot 26, and iron core 23 can contact with permeability magnetic material 34 with the permanent magnet 31 that moves.
On the connecting rod between piston 35 and cylinder 24 ends, spring 41 is housed, spring 41 can hinder piston 35 because permanent magnet 31 and iron core 23 suction on the support 32 move to two ends fast, simultaneously when gas port 25 decompressions need to change the retarder operating state, spring 41 can increase support 32 simultaneously and move strength to cylinder 24 centers, with piston 35 together with the support 32 intermediate equilibria position of rebounding.
Add air pressure by gas port 25 and can realize that piston 35 moves to two ends together with support 32, the air pressure that changes cylinder 24 realizes that the horizontal linear of support 32 moves, allow stator core 23 contact with permeability magnetic material 34 with the permanent magnet 31 that moves, realize the eddy current retarder closed magnetic circuit, shown in Fig. 3 dotted line.
Allow permanent magnet 31 contact and realize the permanent-magnet eddy current retarder operating state with iron core 23, adjusting moves horizontally the contact area that changes permanent magnet 31 and iron core 23, and change the size of permanent-magnet eddy current braking moment by the size of regulating contact area, simultaneously, by moving horizontally the switchover operation that to realize between current vortex retarder and the permanent-magnet eddy current retarder, when current vortex retarder is worked, adopt existing eddy current retarder control system, can realize current vortex retarder braking moment size by the size of current that changes winding 22, higher or can switch to the permanent-magnet eddy current retarder operating state when other fault occurring when the current vortex retarder working temperature.
Claims (2)
1. eddy current retarder of magnetic track of railway vehicle, comprise permanent magnet (31), iron core (23) and yoke 21, has winding (22) on the iron core (23), yoke (21) is near rail (11), it is characterized in that: permanent magnet (31), NULL (33) is connected with permeability magnetic material (34) and is arranged side by side in support (32) one ends, the other end of support (32) connects piston (35), piston (35) symmetry is placed on cylinder (24) two ends, cylinder (24) connects loose slot (26), the two sides of loose slot (26) are embedded with stator core (23), iron core (23) one ends connect yoke (21), and yoke (21) one ends are embedded in the loose slot (26).
2. eddy current retarder of magnetic track of railway vehicle according to claim 1 is provided with spring (41) on the connecting rod between piston (35) and cylinder (24) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102130244A CN101719714B (en) | 2009-11-05 | 2009-11-05 | Eddy current retarder of magnetic track of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102130244A CN101719714B (en) | 2009-11-05 | 2009-11-05 | Eddy current retarder of magnetic track of railway vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101719714A true CN101719714A (en) | 2010-06-02 |
| CN101719714B CN101719714B (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102130244A Expired - Fee Related CN101719714B (en) | 2009-11-05 | 2009-11-05 | Eddy current retarder of magnetic track of railway vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101719714B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167056A (en) * | 2011-04-07 | 2011-08-31 | 江苏大学 | Linear permanent magnetic rail brake |
| CN102291060A (en) * | 2011-08-22 | 2011-12-21 | 北京交通大学 | Normal-conducting rotating magnetic field electric type magnetic levitation system |
| CN103219864A (en) * | 2013-04-22 | 2013-07-24 | 江苏大学 | Electromagnetic and permanent-magnetic compound eddy current retarder |
| CN106515465A (en) * | 2016-12-23 | 2017-03-22 | 盐城振宇科技发展有限公司 | Directly operated type permanent magnet vortex flow wheel edge retarder and control method thereof |
| CN112389190A (en) * | 2019-08-19 | 2021-02-23 | 比亚迪股份有限公司 | Integrated bridge assembly and vehicle |
| CN113056237A (en) * | 2018-11-28 | 2021-06-29 | 汉阳大学校产学协力团 | Magnetic field driving system |
| CN114775343A (en) * | 2022-01-13 | 2022-07-22 | 江西理工大学 | Installation method of permanent magnet array of permanent magnet track |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6412611B1 (en) * | 2000-07-17 | 2002-07-02 | Magnetar Technologies, Ltd | Eddy current brake system with dual use conductor fin |
-
2009
- 2009-11-05 CN CN2009102130244A patent/CN101719714B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167056A (en) * | 2011-04-07 | 2011-08-31 | 江苏大学 | Linear permanent magnetic rail brake |
| CN102167056B (en) * | 2011-04-07 | 2013-05-08 | 江苏大学 | Linear permanent magnetic rail brake |
| CN102291060A (en) * | 2011-08-22 | 2011-12-21 | 北京交通大学 | Normal-conducting rotating magnetic field electric type magnetic levitation system |
| CN103219864A (en) * | 2013-04-22 | 2013-07-24 | 江苏大学 | Electromagnetic and permanent-magnetic compound eddy current retarder |
| CN106515465A (en) * | 2016-12-23 | 2017-03-22 | 盐城振宇科技发展有限公司 | Directly operated type permanent magnet vortex flow wheel edge retarder and control method thereof |
| CN113056237A (en) * | 2018-11-28 | 2021-06-29 | 汉阳大学校产学协力团 | Magnetic field driving system |
| CN113056237B (en) * | 2018-11-28 | 2024-05-28 | 汉阳大学校产学协力团 | Magnetic field driving system |
| CN112389190A (en) * | 2019-08-19 | 2021-02-23 | 比亚迪股份有限公司 | Integrated bridge assembly and vehicle |
| CN114775343A (en) * | 2022-01-13 | 2022-07-22 | 江西理工大学 | Installation method of permanent magnet array of permanent magnet track |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101719714B (en) | 2011-12-21 |
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Granted publication date: 20111221 Termination date: 20171105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |