CN205292323U - Electromagnetism train - Google Patents
Electromagnetism train Download PDFInfo
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- CN205292323U CN205292323U CN201620030631.2U CN201620030631U CN205292323U CN 205292323 U CN205292323 U CN 205292323U CN 201620030631 U CN201620030631 U CN 201620030631U CN 205292323 U CN205292323 U CN 205292323U
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- electromagnetism
- train
- air gap
- vehicle
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Abstract
The utility model relates to an electromagnetism train. This electromagnetism train includes: circuit track, actuating system, vehicle, guide system, electromagnetism braced system. A plurality of long stators are installed along the travel direction in circuit track both sides, the actuating system contains the long stator, the vehicle contains vehicle support frame, carriage, guide system contains direction magnet, guide rail, direction air gap sensor, lead control ware, electromagnetism braced system includes rotor, rotor controller, car load sensor, the rotor is located the long stator below, the rotor with has little air gap between the long stator, air gap value range 2mm -6mm, the rotor controller is adjusted in real time the excitation current of rotor makes the electromagnetic attraction of its production equal the car load. The vehicle through its the bottom the support skid with circuit rail contact. The utility model discloses the air gap sensor that need not to suspend, the consumption is little, the dead weight is light, with low costs, control is simple, the operation is stable.
Description
Technical field
This utility model relates to a kind of train, particularly a kind of electromagnetism train.
Background technology
Electromagnetic suspension train has friction free advantage, has obtained business application in Shanghai. But the levitation gap between its rotor to be generally maintained at 8-10mm during magnetic suspension train operation, air gap during parking is bigger, it is about 15 ~ 20mm, keep such suspension air gap, the exciting current of suspension magnet (rotor) certainly will want big, cause suspension magnet power consumption big, from great, cause that the payload of vehicle is low. What is more important, magnetic suspension system is the system of a close coupling, essentially nonlinear, open-loop unstable, the resuspension procedure such as train floating, landing, craspedodrome need air gap sensors to monitor the size of air gap in real time, it controls complexity, not easily realizes, thus limits promoting the use of of magnetic suspension train.
Summary of the invention
Main purpose of the present utility model is in that: for the defect existed in prior art or deficiency, it is provided that a kind of power consumption is little, from heavy and light, cost is low, control simple, operational effect and electromagnetism train that magnetic suspension train is suitable.
In order to reach object above, this utility model electromagnetism train, including: line track, described line track both sides are provided with multiple long stator along travel direction; Drive system, described drive system contains described long stator; Vehicle, described vehicle contains stand, compartment; Guidance system, described guidance system contains guidance magnets, guide rail, guiding air gap sensors, guide controller; And electromagnetism props up support system, it is characterized in that: described electromagnetism props up support system and includes rotor, rotor controller, car load sensor, described rotor is positioned at below described long stator, has small air gap between described rotor and described long stator, and the span of air gap is 2mm-6mm; Described vehicle is contacted with described line track by the supporting runner for turning over multi bottom it, and train, in whole driving process, all contacts with described line track.
The car load that described rotor controller records according to described car load sensor, regulates the exciting current of described rotor in real time so that the electromagnetic attraction that exciting current produces is equal to described car load.
Described electromagnetism props up support system and is arranged on described stand.
This utility model electromagnetism train differs primarily in that with magnetic suspension train: 1) vehicle is fixing with line track contacts, it does not have suspends, thus can save suspension air gap sensor, controls without floating, landing, suspension so that control simple, stable; 2) air gap between stator and rotor is 2-6mm, it is significantly smaller than the suspension air gap (8-10mm) between magnetic suspension train rotor, it has the benefit that if producing same electromagnetic attraction f(and same car load), rotor excitation current I needed for electromagnetism train of the present invention can reduce at double, and according to power P=I2R(wherein R is the resistance of rotor excitation coil), then power consumption will become square times reduction, simultaneously a weight reduction; 3) newly-increased car load sensor, car load is measured in real time by it, as long as regulating the exciting current I of rotor, make its electromagnetic attraction f produced equal to car load, that is electromagnetic attraction counteracts car load gravity, then vehicle acts on the active force on track is zero, thus frictional force is also zero, although being so fixing contact, but still can reach same with magnetic suspension train without friction effect; Further, in case of emergency, by reducing the exciting current I of rotor so that electromagnetic attraction f diminishes, and can increase frictional force, reaches to assist the purpose of rapid Brake stop.
In sum, the beneficial effects of the utility model are: 1) without suspension air gap sensor, it does not have floating, landing, suspension control, and control simple, stable; 2) owing to the air gap between rotor significantly reduces so that train from heavy and light, cost is low, payload is big, power consumption is substantially reduced; 3) although being fixing contact, but still can reach same with magnetic suspension train without friction effect; 4) in case of emergency, by reducing the exciting current of rotor so that electromagnetic attraction diminishes, and can increase the frictional force between train and track, reaches the purpose of rapid Brake stop.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of this utility model electromagnetism train.
Accompanying drawing 2 props up the mechanical analysis schematic diagram of support system for this utility model electromagnetism.
Number in the figure: 1-track, 1a-stator face, 1b-side guide rail level, 1c-slides rail level, and 2-armored concrete props up pier foundation, 3-long stator, 4-rotor, 4a-rotor excitation coil, 4b-rotor core, 5-car load sensor, 6-stand, 6a-crossbeam, 6b-longeron, 7-supporting runner for turning over multi, 8-vehicle, 9-guidance magnets.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
As shown in Figure 1, the line track of this utility model electromagnetism train includes track 1, armored concrete props up pier foundation 2, and its effect is guide column car direction of advance, bears train load simultaneously and it is reached ground. Track 1 is the superstructure of circuit, including stator face 1a(for suspending), side guide rail level 1b(is used for controlling train directions), slide rail level 1c(for supporting train) and fixing fitting; Armored concrete props up substructure that pier foundation 2 is circuit.
The drive system of electromagnetism train includes long stator 3, it along whole line arrangement in track both sides, long stator linear synchronous motor is constituted with the rotor 4 being arranged on vehicle 8, both it was also used for braking for driving, its operation principle is: long stator 3 is with three-phase traveling wave coil, rectilinear movement magnetic field is produced after input three-phase alternating current, train is attracted to promote forward by electromagnetic force, its speed of service is directly proportional to the frequency of three-phase current in long stator 3, thus train can realize infinitely variable speeds according to the frequency of three-phase current;The control equipment that in long stator 3, three-phase current is fixed by ground implements to control traction and the braking of train by regulating its frequency, voltage, electric current and phase angle.
The vehicle 8 of electromagnetism train includes stand 6 and compartment. Stand 6 is the critical piece of vehicle, it is made up of crossbeam 6a, longeron 6b, supporting runner for turning over multi 7 etc., rotor 4, guidance magnets 9 etc. are installed on stand 6, and electromagnetic force, guiding force, pull strength and brake force are passed to compartment by suspension by stand 6. Rotor 4 and guidance magnets 9 are arranged on the longeron 6b of adjacent two stands 6. Vehicle 8 is contacted with line track by supporting runner for turning over multi 7. Skid 7 is positioned at bottom vehicle 8, is fixed on air spring support, supports car body and brake hard (utilizing the frictional force of itself and track) in particular cases for train, bears train load and it is reached ground.
The electromagnetism of electromagnetism train props up support system and includes rotor 4, rotor controller, car load sensor 5. Rotor 4 is arranged on stand 6, and is positioned at the lower section of long stator 3, and the air gap between them is only small, and its span is 2-6mm; Car load sensor 5 is arranged between the crossbeam 6a of stand 6 and supporting runner for turning over multi 7, the car load that rotor controller records according to car load sensor 5, regulate the exciting current of described rotor in real time, make the electromagnetic attraction that exciting current produces equal to car load, namely electromagnetic attraction counteracts car load gravity, then vehicle 8 is applied to active force that line track slides on rail level 1c equal to zero, thus the frictional force between vehicle 8 and line track is also zero, reach same with magnetic suspension train without friction effect.
The guidance system of electromagnetism train includes guidance magnets 9, guide rail (i.e. the side guide rail level 1b of track 1), guiding air gap sensors, guide controller, guiding air gap sensors is positioned at guidance magnets 9 side, monitored in real time by it, control the size of the electromagnetic force that guidance magnets 9 produces, it is ensured that lateral and track 1 the side guide rail level 1b of train keeps the guiding clearance of 8-10mm.
Citing below further illustrate this utility model electromagnetism train realize without friction, auxiliary braking, from heavy and light, power consumption is little, cost is low embodiment.
Fig. 2 is the mechanical analysis schematic diagram that this utility model electromagnetism props up support system, and in figure, f is the upwardly directed electromagnetic attraction produced after rotor 4 is energized, and mg is the deadweight of vehicle 8, i.e. car load, and downwardly, �� is the air gap between rotor 4 and stator 3.
According to electromagnetic theory, have:
In formula, ��0For permeability of vacuum, N is the number of turn of rotor excitation coil 4a, and S is the magnetic pole surfaces effective area of electric magnet (i.e. rotor 4), and I is the exciting current of rotor 4.
According to Fig. 2, vehicle is applied to the difference equal to its deadweight mg and electromagnetic attraction f of the directed force F on line track, it may be assumed that
By regulating the exciting current I of rotor so that electromagnetic attraction f is equal to car load mg, then can be obtained by formula (1):
Therefore, as long as regulating the exciting current I of rotor, I is made to meet formula (3), then electromagnetic attraction f is equal to car load mg, from formula (2), now vehicle is applied to the directed force F (making a concerted effort) on line track equal to zero, thus the frictional force between vehicle and line track is also zero, reach magnetic suspension train without friction effect.
Further, in case of emergency, by reducing the exciting current I of rotor, then electromagnetic attraction f diminishes so that the F that makes a concerted effort, more than zero, can increase the frictional force between vehicle and line track, reach to assist the purpose of rapid Brake stop.
Compared with magnetic suspension train, the air gap delta between electromagnetism train stator 3 of the present invention, rotor 4 is only small, and air gap span is only 2mm-6mm. Without loss of generality, citing: the air gap chosen between electromagnetism train stator 3, rotor 4 is 4mm, and the air gap between magnetic suspension train rotor is 10mm, then electromagnetism train air gap is 2/5(that is 40% of magnetic suspension train air gap). Owing to the air gap between rotor reduces, if producing the electromagnetic attraction f(same with magnetic suspension train and same car load), then can draw three kinds of effects from formula (1):
1) needed for, exciting current I can be reduced to original 40%(accordingly in proportion and namely reduces by 60%), then according to power P=I2R(wherein R is the resistance of rotor excitation coil 4a) can calculate: the electromagnetic power consumption P of rotor is only the 16%(of magnetic suspension train and namely saves 84%), power consumption is substantially reduced; Simultaneously because exciting current I reduces, rotor excitation coil 4a can select the wire that wire diameter is less, and rotor core 4b can be thinning, rotor 4 volume diminishes, the deadweight of rotor 4 is alleviated, then can reduce the driving power consumption of long stator 3, maybe can increase the payload of vehicle 8.
2) if keeping exciting current I constant, then the number of turn N of required rotor excitation coil 4a can be reduced to original 40%(accordingly in proportion and namely reduces 60%), thus rotor core 4b can be thinning, highly it is reduced to original 40%(and namely reduces by 60%), rotor 4 volume diminishes, and has saved the cost of magnet exciting coil 4a wire and rotor core 4b, and has significantly reduced the deadweight of rotor 4, the driving power consumption of long stator 3 can be reduced equally, or increase the payload of vehicle 8.
3) if keeping the number of turn N of exciting current I and rotor excitation coil 4a constant, namely the 16%(that then the long-pending S of the magnetic pole surfaces of electric magnet (rotor 4) can be reduced to only magnetic suspension train reduces 84%), then rotor 4 volume diminishes, reduce the cost of rotor core 4b, and significantly reduce the deadweight of rotor 4, the driving power consumption of long stator 3 can be reduced equally, or increase the payload of vehicle 8.
From the foregoing, it will be observed that the energy conservation and consumption reduction effects highly significant of this utility model electromagnetism train. If the air gap between stator 3 and rotor 4 is chosen to less, then power consumption can less, deadweight lighter, lower in cost, energy conservation and consumption reduction effects is more notable.
Claims (3)
1. an electromagnetism train, including: line track, described line track both sides are provided with multiple long stator along travel direction; Drive system, described drive system contains described long stator; Vehicle, described vehicle contains stand, compartment; Guidance system, described guidance system contains guidance magnets, guide rail, guiding air gap sensors, guide controller; And electromagnetism props up support system, it is characterized in that: described electromagnetism props up support system and includes rotor, rotor controller, car load sensor, described rotor is positioned at below described long stator, has small air gap between described rotor and described long stator, and the span of air gap is 2mm-6mm; Described vehicle is contacted with described line track by the supporting runner for turning over multi bottom it, and train, in whole driving process, all contacts with described line track.
2. electromagnetism train according to claim 1, it is characterized in that: the car load that described rotor controller records according to described car load sensor, regulate the exciting current of described rotor in real time so that the electromagnetic attraction that exciting current produces is equal to described car load.
3. electromagnetism train according to claim 1, it is characterised in that: described electromagnetism props up support system and is arranged on described stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620030631.2U CN205292323U (en) | 2016-01-14 | 2016-01-14 | Electromagnetism train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620030631.2U CN205292323U (en) | 2016-01-14 | 2016-01-14 | Electromagnetism train |
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| Publication Number | Publication Date |
|---|---|
| CN205292323U true CN205292323U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620030631.2U Expired - Fee Related CN205292323U (en) | 2016-01-14 | 2016-01-14 | Electromagnetism train |
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| CN (1) | CN205292323U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105691233A (en) * | 2016-01-14 | 2016-06-22 | 曲阜师范大学 | Electromagnetic train |
| CN108657012A (en) * | 2018-06-12 | 2018-10-16 | 胡铁林 | Novel high speed magnetic suspension train and suspension mechanism |
| CN109532904A (en) * | 2018-11-21 | 2019-03-29 | 中车青岛四方机车车辆股份有限公司 | A kind of rail vehicle |
| CN110071677A (en) * | 2019-05-30 | 2019-07-30 | 中国科学院电工研究所 | High-speed maglev train long stator synchronous linear motor traction control method |
-
2016
- 2016-01-14 CN CN201620030631.2U patent/CN205292323U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105691233A (en) * | 2016-01-14 | 2016-06-22 | 曲阜师范大学 | Electromagnetic train |
| CN105691233B (en) * | 2016-01-14 | 2018-02-09 | 曲阜师范大学 | Electromagnetism train |
| CN108657012A (en) * | 2018-06-12 | 2018-10-16 | 胡铁林 | Novel high speed magnetic suspension train and suspension mechanism |
| CN108657012B (en) * | 2018-06-12 | 2023-12-29 | 胡铁林 | High-speed magnetic suspension train and suspension mechanism |
| CN109532904A (en) * | 2018-11-21 | 2019-03-29 | 中车青岛四方机车车辆股份有限公司 | A kind of rail vehicle |
| CN109532904B (en) * | 2018-11-21 | 2021-03-02 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle |
| CN110071677A (en) * | 2019-05-30 | 2019-07-30 | 中国科学院电工研究所 | High-speed maglev train long stator synchronous linear motor traction control method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20210114 |