CN113060009A - Monorail high-temperature superconducting maglev train - Google Patents
Monorail high-temperature superconducting maglev train Download PDFInfo
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- CN113060009A CN113060009A CN202110474093.1A CN202110474093A CN113060009A CN 113060009 A CN113060009 A CN 113060009A CN 202110474093 A CN202110474093 A CN 202110474093A CN 113060009 A CN113060009 A CN 113060009A
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- temperature superconducting
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- 239000000463 material Substances 0.000 claims abstract description 14
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- 238000005339 levitation Methods 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 5
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- 229910052742 iron Inorganic materials 0.000 claims description 3
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- 229910052802 copper Inorganic materials 0.000 claims description 2
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- 238000004804 winding Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
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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
- B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
- B60L13/10—Combination of electric propulsion and magnetic suspension or levitation
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/30—Tracks for magnetic suspension or levitation vehicles
- E01B25/305—Rails or supporting constructions
Abstract
The invention discloses a monorail high-temperature superconducting maglev train, which comprises a train body, a 'C' -shaped suspension frame, a linear motor, a monorail track beam and a pier; one end of the monorail track beam is rigidly connected with the pier to form a Gamma-shaped structure; the C-shaped suspension frame is sleeved at the other end of the monorail track beam in a clearance manner to form a rail holding structure; the vehicle body is connected with the upper surface of the top of the C-shaped suspension frame; the lower surface of the top of the C-shaped suspension frame is provided with a suspension Dewar with a high-temperature superconducting material at the bottom, and a single-track permanent magnet track is arranged on a permanent magnet track substrate on the upper end surface of the single-track beam; the linear motor primary is arranged on the lower end face of the monorail track beam, the linear motor secondary is arranged on the upper surface of the bottom of the C-shaped suspension frame and located below the linear motor primary, and auxiliary wheels are arranged on the surface, opposite to the monorail track beam, of the inner side of the C-shaped suspension frame. The invention adopts the single-track high-temperature superconducting maglev technology and the linear motor driving technology to provide suspension, guidance and driving for the train, so that the high-temperature superconducting maglev train has a more compact structure and more flexible line planning.
Description
Technical Field
The invention relates to the application field of high-temperature superconducting magnetic levitation trains, in particular to a single-track high-temperature superconducting magnetic levitation train.
Background
The monorail train mainly comprises a straddle type monorail train and a suspension type monorail train in terms of structural form, and is characterized in that only one rail is used, and rails are generally made of concrete and are much wider than traditional steel rails. The monorail train runs on the rail by using the rubber wheels, and has the advantages of small occupied space, strong climbing capability, small turning radius, small noise pollution and the like. However, the monorail train uses rubber wheels as running tires, so that the tires are worn due to friction, and meanwhile, the monorail train generates higher energy consumption, thereby bringing higher operation and maintenance cost. On the other hand, the running speed is limited by the structure of a transmission system and the friction of wheel rails, the maximum running speed of the monorail wheel rail train is usually about 80 km/h, and the running speed of the monorail wheel rail train is lower than that of the traditional steel rail train. The high-temperature superconducting maglev train realizes self-stable suspension and guidance by utilizing the electromagnetic force between the high-temperature superconductor and the permanent magnet track without extra power consumption, is driven by the traction of the linear motor, and has great advantages in speed, energy consumption and noise compared with the prior monorail train technology because of being only influenced by air resistance. Under the condition of not changing the bearing and guiding performance of the high-temperature superconducting maglev train, the permanent magnet double tracks are combined into a single track, so that the structure of the high-temperature superconducting maglev train is more compact, and the route planning is more flexible, thereby simultaneously having the advantages of the single track train and the high-temperature superconducting maglev train and having wide application prospect in an urban rail transportation system.
Disclosure of Invention
The invention aims to overcome the defects of high energy consumption, low speed and the like of the existing monorail wheel-rail train, and provides a monorail high-temperature superconducting maglev train.
The technical scheme adopted by the invention is as follows:
a monorail high-temperature superconducting maglev train comprises a train body, a C-shaped suspension frame, a linear motor, a monorail track beam and a pier; one end of the monorail track beam is rigidly connected with the upper end of the pier to form a Gamma-shaped structure; the C-shaped suspension frame is sleeved at the other end of the monorail track beam in a clearance manner to form a rail holding structure; the vehicle body is connected with the upper surface of the top of the C-shaped suspension frame through a central traction pin and an air spring; the lower surface of the top of the C-shaped suspension frame is provided with a suspension Dewar, the bottom of the suspension Dewar is provided with a high-temperature superconducting material, the upper end surface of the monorail track beam is provided with a monorail permanent magnetic track corresponding to the suspension Dewar, and the monorail permanent magnetic track is fixed on a permanent magnetic track substrate correspondingly arranged on the monorail track beam; the linear motor comprises a linear motor primary and a linear motor secondary, the linear motor primary is arranged on the lower end face of the monorail track beam, the linear motor secondary is arranged on the upper surface of the bottom of the C-shaped suspension frame and located below the linear motor primary, and auxiliary wheels are arranged on the surfaces, opposite to the monorail track beam, of the inner side of the C-shaped suspension frame.
Specifically, the suspension and guide device provides suspension and guide for a train through electromagnetic force between the single-rail permanent magnet track and the suspension Dewar, controls and drives the linear motor, and supports and pulls the train through the air spring and the central traction pin. The monorail track beam is supported by the pier overhead support.
Furthermore, the C-shaped suspension frame is composed of C-shaped end beams, cross beams, side beams, auxiliary wheels, a central traction pin and an air spring. The C-shaped end beams are connected through the side beams to form a C-shaped frame structure, the cross beam is arranged in the center of the top of the C-shaped suspension frame and forms an H-shaped structure with the side beams on two sides, the central traction pin is arranged in the center of the cross beam, and the air springs are fixed at two ends of the top of the C-shaped end beams. The auxiliary wheel comprises an upper auxiliary supporting wheel, a lower auxiliary supporting wheel and an auxiliary guide wheel, the upper auxiliary supporting wheel is arranged at two ends of the top of the C-shaped end beam, the lower auxiliary supporting wheel is arranged at two ends of the bottom of the C-shaped end beam, and the auxiliary guide wheel is arranged on the right side of the C-shaped end beam.
Furthermore, the suspension Dewar is fixed on the lower surface of the upper end of the C-shaped suspension frame and provides suspension and guidance for the high-temperature superconducting magnetic suspension vehicle through electromagnetic acting force between the suspension Dewar and the permanent magnet track; the auxiliary guide wheel is arranged on the side surface of the C-shaped suspension frame, and when a train passes through a curve line, auxiliary guide can be provided for the train so as to prevent the train from derailing due to insufficient guide force; the auxiliary supporting wheels are fixed on two sides of the upper end and the lower end of the C-shaped suspension frame, and when a train is overweight or a superconductor loses time, the train is prevented from contacting the rail due to the sufficient suspension force.
Furthermore, the single-rail permanent magnet track is formed by arranging a stainless steel base and permanent magnets; the permanent magnets are arranged into a single structure or a combined arrangement structure of the permanent magnets, the electromagnets and the superconducting magnets.
Further, a high-temperature superconducting material is arranged at the bottom of the suspension Dewar and is cooled by injecting liquid nitrogen, fixed nitrogen or a refrigerator; the high-temperature superconducting material is ReBa2Cu3O x7-(ReBCO, Re is rare earth element) or other high-temperature superconducting materials, and single structures or combined arrangement structures of the strip material stack and the coil.
Furthermore, the linear motor is composed of a motor primary and a motor secondary together; the primary of the linear motor is a long primary or a short primary, is structurally provided with an iron core or a hollow three-phase pitch winding, is fixed under the track beam and is continuously laid along the line direction; the secondary level of the linear motor is a permanent magnet array or a single or composite metal plate; the metal plate is made of copper, aluminum and iron.
By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the high-temperature superconducting magnetic levitation technology and the linear motor driving technology are adopted to provide suspension, guidance and driving for the monorail train, so that the train is not in mechanical contact with the track, the transmission switching mechanism and the wheel track friction resistance are removed, the train system structure is simplified, and the energy consumption and the maintenance cost are reduced;
2. the suspension and guidance of the magnetic suspension vehicle based on the high-temperature superconducting magnetic suspension technology have self-stability, so that no complex control system is provided, electric power maintenance is not needed, and the magnetic suspension vehicle has the advantages of environmental protection, energy conservation and simplicity;
3. the primary stage of the linear motor is reversely arranged at the bottom of the track beam in a conventional forward arrangement mode, so that the system structure is simpler and more compact; on the other hand, when the secondary of the linear motor is of an iron plate composite structure, a large normal suction force is generated, and a certain suspension force and a certain guiding force can be provided for the train.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and the detailed description;
FIG. 1 is a schematic diagram of a transverse cross-sectional structure of a monorail high-temperature superconducting maglev train;
FIG. 2 is a structural schematic view of a C-shaped suspension frame;
FIG. 3 is a schematic diagram of a permanent magnet track structure;
FIG. 4 is a schematic view of the whole structure of a monorail high-temperature superconducting maglev train;
names of reference numbers in the drawings:
the method comprises the following steps of 1-vehicle body, 2-central traction pin, 3-air spring, 4- 'C' -shaped suspension frame, 41- 'C' -shaped end beam, 42-cross beam, 43-side beam, 5-suspension Dewar, 6-high-temperature superconducting material, 7-upper auxiliary support wheel, lower auxiliary guide wheel, 9-lower auxiliary support wheel, 10-linear motor primary, 11-linear motor secondary, 12-single-rail permanent magnet rail, 13-permanent magnet rail base, 14-rail beam and 15-pier.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
Example 1:
the schematic diagram of the transverse cross-section structure of the monorail high-temperature superconducting maglev train shown in fig. 1 mainly comprises a train body 1, a C-shaped suspension frame 4, a suspension Dewar 5, a monorail permanent magnet track 12, a linear motor primary 10, a linear motor secondary 11, an upper auxiliary supporting wheel 7, an auxiliary guide wheel 8, a lower auxiliary supporting wheel 9, a track beam 14, piers 15 and the like. The monorail permanent magnet track 12 and the linear motor primary 10 are respectively arranged at the top and the bottom of the track beam 14, the suspension Dewar 5 and the linear motor secondary 11 are respectively fixed at the top and the bottom in the C-shaped suspension frame 4, the C-shaped suspension frame 4 and the track beam 14 form a rail holding structure, suspension and guidance are provided for a train through electromagnetic acting force between the monorail permanent magnet track 12 and the suspension Dewar 5, the linear motor primary 10 is controlled and driven, and the support and traction of the train are realized through the air spring 3 and the central traction 2 pin. The track beam 14 is supported overhead by piers 15.
Example 2:
as shown in fig. 2, the "C" -shaped suspension frame is composed of a "C" -shaped end beam 41, a cross beam 42, a side beam 43, an upper auxiliary wheel support wheel 7, an auxiliary guide wheel 8, a lower auxiliary wheel support wheel 9, a central towing pin 2 and an air spring 3. The C-shaped end beam 41 is connected through the side beam 43 to form a C-shaped frame structure, the cross beam 42 is arranged in the center of the top of the C-shaped suspension frame and forms an H-shaped structure with the side beams 43 on two sides, the central traction pin 2 is arranged in the center of the cross beam 42, and the air springs 3 are fixed at two ends of the top of the C-shaped end beam 41. The upper auxiliary supporting wheels 7 are arranged at two ends of the inner top of the C-shaped end beam 41, and the lower auxiliary supporting wheels 9 are arranged at two ends of the bottom of the C-shaped end beam 41, so that when a train is overweight or a superconductor loses time, the train is prevented from contacting the rail due to insufficient suspension force. The auxiliary guide wheel 8 is arranged at the right side of the C-shaped end beam 41 and provides auxiliary guide for the train when the train passes through a curve line so as to prevent the train from derailing due to insufficient guide force.
Preferably, the C-shaped suspension frame is welded or integrally formed by adopting light aluminum alloy and carbon fiber materials, so that the total weight of the train can be effectively reduced and the load can be improved under the condition of ensuring the structural strength of the suspension frame;
preferably, the auxiliary supporting and guiding wheels are made of nylon, rubber or stainless steel.
Example 3:
as shown in the schematic structural diagram of the permanent magnet track shown in fig. 3, the single-track permanent magnet track 12 is formed by combining permanent magnet units in a certain arrangement mode along the transverse direction, is arranged in a staggered mode along the longitudinal direction of the track, is fastened by bolts, is fixed on a permanent magnet track substrate 13 in sections, and is further installed at the bottom of a track beam.
Preferentially, the Halbach array is adopted in the transverse arrangement mode of the permanent magnet units, so that the purposes of improving the utilization rate of permanent magnet materials and reducing the nonuniformity of a longitudinal magnetic field of a permanent magnet track are achieved;
preferably, the permanent magnet track substrate is made of non-magnetic stainless steel or structural aluminum alloy.
Example 4
As shown in fig. 4, the overall structure of the monorail high-temperature superconducting maglev train is schematically shown, and 3C-shaped suspension frames are adopted to jointly provide support and guide for the overall train body in consideration of the fact that the train has a certain length along the track direction.
Preferably, the whole train body is made of all-carbon fiber materials, so that the total weight of the train can be effectively reduced, and the load capacity of the train is improved.
By adopting the technical scheme, compared with a single high-temperature superconducting maglev train and a monorail train, the invention has the beneficial effects that: the single-track high-temperature superconducting maglev technology and the linear motor driving technology are adopted to provide suspension, guidance and driving for the train, so that the high-temperature superconducting maglev train is more compact in structure and more flexible in route planning, meanwhile, the friction resistance of a transmission mechanism and a wheel track is removed, and the energy consumption and the maintenance cost are reduced, thereby simultaneously having the advantages of the single-track train and the high-temperature superconducting maglev train, making up the defects under the application of a single technology, and having wide application prospect in an urban rail transportation system.
It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Claims (10)
1. A monorail high-temperature superconducting maglev train is characterized in that: the device comprises a vehicle body, a C-shaped suspension frame, a linear motor, a monorail track beam and a pier; one end of the monorail track beam is rigidly connected with the upper end of the pier to form a Gamma-shaped structure; the C-shaped suspension frame is sleeved at the other end of the monorail track beam in a clearance manner to form a rail holding structure; the vehicle body is connected with the upper surface of the top of the C-shaped suspension frame through a central traction pin and an air spring; the lower surface of the top of the C-shaped suspension frame is provided with a suspension Dewar, the bottom of the suspension Dewar is provided with a high-temperature superconducting material, the upper end surface of the monorail track beam is provided with a monorail permanent magnetic track corresponding to the suspension Dewar, and the monorail permanent magnetic track is fixed on a permanent magnetic track substrate correspondingly arranged on the monorail track beam; the linear motor comprises a linear motor primary and a linear motor secondary, the linear motor primary is arranged on the lower end face of the monorail track beam, the linear motor secondary is arranged on the upper surface of the bottom of the C-shaped suspension frame and located below the linear motor primary, and auxiliary wheels are arranged on the surfaces, opposite to the monorail track beam, of the inner side of the C-shaped suspension frame.
2. A monorail high temperature superconducting magnetic levitation train as defined in claim 1, wherein: the C-shaped suspension frame comprises C-shaped end beams, cross beams and side beams, wherein the C-shaped end beams are arranged in parallel at intervals, and two adjacent C-shaped end beams are connected and fixed through the side beams to form a C-shaped frame structure; the cross beam is arranged between two adjacent side beams at the top of the C-shaped suspension frame, the cross beam and the side beams at two ends of the cross beam form an H-shaped structure, the central traction pin is arranged in the center of the cross beam, and the air springs are fixed at two ends of the top of the C-shaped end beam.
3. A monorail high temperature superconducting magnetic levitation train as defined in claim 2, wherein: the auxiliary wheel includes auxiliary stay wheel, lower auxiliary stay wheel and supplementary leading wheel, it sets up in the bottom surface at "C" shape end beam top and is located the suspension dewar both sides to go up auxiliary stay wheel, lower auxiliary stay wheel sets up the upper surface in "C" shape end beam bottom and is located linear electric motor secondary both sides, supplementary leading wheel sets up the inboard that corresponds single track roof beam at "C" shape end beam middle part, and single track roof beam corresponds supplementary leading wheel and is equipped with the spacing groove, supplementary leading wheel removes in the spacing groove.
4. A monorail high temperature superconducting magnetic levitation train as defined in claim 1, wherein: the high-temperature superconducting material is refrigerated by injecting liquid nitrogen, fixing nitrogen or using a refrigerator.
5. A monorail high temperature superconducting magnetic levitation train as defined in claim 1, wherein: the high-temperature superconducting material is ReBa2Cu3O x7-Or one single structure or a combined arrangement of two or more of blocks, tape stacks and coils of other high temperature superconducting materials.
6. A monorail high temperature superconducting magnetic levitation train as defined in claim 1, wherein: the monorail permanent magnet track is a single structure or a combined arrangement structure of more than two of a permanent magnet, an electromagnet and a superconducting magnet.
7. A monorail high temperature superconducting magnetic levitation train as defined in claim 6, wherein: the permanent magnet combined arrangement structure is formed by arranging a plurality of magnet units in a Halbach array in the cross section direction and alternately assembling the magnet units along the longitudinal direction.
8. A monorail high temperature superconducting magnetic levitation train as defined in claim 1, wherein: the central towing pin is arranged in the middle of the bottom of the vehicle body, and the air springs are arranged on two side edges of the bottom of the vehicle body.
9. A monorail high temperature superconducting magnetic levitation train as defined in claim 1, wherein: the primary structure of the linear motor is a three-phase pitch winding with an iron core or a hollow core; the secondary level of the linear motor is a permanent magnet array or a single metal plate or a composite metal plate.
10. A monorail high temperature superconducting magnetic levitation train as defined in claim 9, wherein: the metal plate is made of copper, aluminum or iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110474093.1A CN113060009A (en) | 2021-04-29 | 2021-04-29 | Monorail high-temperature superconducting maglev train |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110474093.1A CN113060009A (en) | 2021-04-29 | 2021-04-29 | Monorail high-temperature superconducting maglev train |
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| CN113060009A true CN113060009A (en) | 2021-07-02 |
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| CN202110474093.1A Pending CN113060009A (en) | 2021-04-29 | 2021-04-29 | Monorail high-temperature superconducting maglev train |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113362686A (en) * | 2021-07-19 | 2021-09-07 | 福建师范大学 | High-temperature superconducting magnetic levitation train model |
| CN113652909A (en) * | 2021-09-24 | 2021-11-16 | 江西理工大学 | Magnetic suspension track and magnetic suspension system |
| CN113882197A (en) * | 2021-10-22 | 2022-01-04 | 中车工业研究院有限公司 | Permanent magnet magnetic suspension track, magnetic suspension mechanism and magnetic suspension train |
| CN114103654A (en) * | 2021-12-22 | 2022-03-01 | 北京轨道交通技术装备集团有限公司 | Linear motor lifting adjusting device of magnetic-levitation train and magnetic-levitation train |
| CN115162071A (en) * | 2022-08-02 | 2022-10-11 | 中铁二十三局集团轨道交通工程有限公司 | Superconducting magnetic suspension track structure capable of reducing magnetic resistance |
| CN115534687A (en) * | 2022-08-03 | 2022-12-30 | 西南交通大学 | Superconducting magnetic levitation vehicle and levitation method |
| CN115837841A (en) * | 2023-01-03 | 2023-03-24 | 西南交通大学 | High-temperature superconducting magnetic suspension system and calculation method of coil size thereof |
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| CN115534687A (en) * | 2022-08-03 | 2022-12-30 | 西南交通大学 | Superconducting magnetic levitation vehicle and levitation method |
| CN115837841A (en) * | 2023-01-03 | 2023-03-24 | 西南交通大学 | High-temperature superconducting magnetic suspension system and calculation method of coil size thereof |
| CN115837841B (en) * | 2023-01-03 | 2023-04-28 | 西南交通大学 | High-temperature superconducting magnetic suspension system and coil size calculation method thereof |
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