CN115341419A - Device for improving suspension guide performance of magnetic suspension automobile - Google Patents
Device for improving suspension guide performance of magnetic suspension automobile Download PDFInfo
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- CN115341419A CN115341419A CN202211256614.7A CN202211256614A CN115341419A CN 115341419 A CN115341419 A CN 115341419A CN 202211256614 A CN202211256614 A CN 202211256614A CN 115341419 A CN115341419 A CN 115341419A
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- suspension
- magnetic
- track
- conductor
- improving
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
Abstract
The invention relates to the technical field of magnetic suspension traffic, in particular to a device for improving the suspension guidance performance of a magnetic suspension automobile, which comprises the following components: the magnetic conductor strip is arranged in the suspension track, the magnetic conductor strip is fixedly arranged in the middle of the suspension track, and the bottom surface of the magnetic conductor strip and the bottom surface of the suspension track are positioned on the same horizontal plane; the suspension structure is arranged right above the suspension track; the conductor outer ring is arranged in a ring shape, the conductor outer ring is sleeved on the side wall of the suspension structure, the width of the conductor outer ring is the same as that of the suspension structure, and the inner wall of the conductor outer ring is fixedly connected with the outer surface of the side wall of the suspension structure. The invention increases the limit rotating speed when the suspension force is saturated, namely the loading capacity of the magnetic suspension automobile, by additionally arranging the outer ring of the conductor and reusing the mirror magnetic field generated by the track, the suspension performance is improved.
Description
Technical Field
The invention relates to the technical field of magnetic suspension traffic, in particular to a device for improving the suspension guiding performance of a magnetic suspension automobile.
Background
The magnetic levitation automobile is a novel magnetic levitation type vehicle which moves based on the permanent magnet electric levitation principle. In the prior art, a magnetic levitation vehicle is not widely popularized and applied mainly because the vertical magnet is low in utilization rate, low in energy utilization rate, low in limit running speed, and incapable of realizing high speed and ultrahigh speed in the true sense, and a stable guiding scheme is not realized on the premise that sufficient levitation performance can be guaranteed.
Disclosure of Invention
The invention aims to provide a device for improving the suspension guiding performance of a magnetic suspension automobile so as to improve the problems. In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the application provides a device for improving suspension guidance performance of a magnetic levitation vehicle, which comprises: the magnetic conductor strip is arranged in the suspension track, the magnetic conductor strip is fixedly arranged in the middle of the suspension track, and the bottom surface of the magnetic conductor strip and the bottom surface of the suspension track are positioned on the same horizontal plane; the suspension structure is arranged right above the suspension track; the conductor outer ring is arranged in a ring shape, the conductor outer ring is sleeved on the side wall of the suspension structure, the width of the conductor outer ring is the same as that of the suspension structure, and the inner wall of the conductor outer ring is fixedly connected with the outer surface of the side wall of the suspension structure.
Optionally, the suspension structure includes a hub and a permanent magnet, the hub is provided with a groove, the groove is internally provided with the permanent magnet, and the bottom of the permanent magnet is fixedly connected with the bottom surface in the groove.
Optionally, through holes are formed in the two side walls of the groove and the permanent magnet, and the permanent magnet is fixedly arranged in the groove by penetrating through the through holes through bolts.
Optionally, the magnetization directions of the permanent magnets are all arranged periodically according to a Halbach array.
Optionally, the number of the permanent magnets is at least 4, each permanent magnet is set to be a fan-ring structure, all the permanent magnets enclose a hollow cylinder, and a central axis of the hollow cylinder is parallel to the suspension rail.
Optionally, the number of the permanent magnets is 16, and the angular interval between the magnetization directions of two adjacent permanent magnets is 22.5 degrees.
Optionally, the outer conductor ring is provided as a metal outer conductor ring.
Optionally, the thickness of the conductor outer ring is set to be 2-6mm.
Optionally, the width of the levitation track is greater than the width of the levitation structure.
Optionally, a connection line between the midpoint of the suspension structure and the midpoint of the magnetic conductor strip is perpendicular to the magnetic conductor strip, and the magnetic conductor strip is parallel to the suspension track.
The invention has the beneficial effects that:
according to the invention, the outer side of the suspension structure with the specific magnetization direction is wrapped with a layer of high-conductivity material which is used as a good conductor of secondary induction and is subjected to electromagnetic reaction with a good conductor of a track together with the magnetic wheel, so that the suspension performance and the load-carrying capacity are effectively improved; and high-permeability materials are laid in the middle of the good conductor of the ground track to serve as an auxiliary track, so that the guidance of the magnetic levitation vehicle is realized, and the integration of levitation guidance and driving under large load capacity is further realized.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a device for improving the levitation guidance performance of a magnetic levitation vehicle in an embodiment of the invention;
FIG. 2 is a schematic side view of an apparatus for improving levitation guidance performance of a maglev vehicle according to an embodiment of the present invention;
FIG. 3 is a schematic view of the magnetization direction of a permanent magnet according to an embodiment of the present invention;
fig. 4 is a schematic diagram of the levitation force generated by different outer ring thicknesses of the device for improving the levitation guidance performance of the maglev vehicle in the embodiment of the present invention;
FIG. 5 is a schematic diagram of the levitation force generated by different outer ring materials of the device for improving the levitation guidance performance of the maglev vehicle according to the embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating a levitation force of a levitation structure according to an embodiment of the present invention;
fig. 7 is a schematic diagram of guiding force of the suspension structure deviating from the track according to the embodiment of the present invention.
The labels in the figure are: 1. a levitation track; 2. a magnetic conductor strip; 3. an outer conductor ring; 4. a hub; 5. a permanent magnet; 6. and (4) bolts.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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 invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not construed as indicating or implying relative importance.
Example 1
Referring to fig. 1, 6 and 7, the embodiment provides a device for improving the levitation guidance performance of a maglev vehicle, which includes a levitation track 1, a magnetic conductor bar 2, a levitation structure and a conductor outer ring 3, wherein the magnetic conductor bar 2 is arranged in the levitation track 1, the magnetic conductor bar 2 is fixedly arranged in the middle of the levitation track 1, and the bottom surface of the magnetic conductor bar 2 and the bottom surface of the levitation track 1 are located on the same horizontal plane; the suspension structure is arranged right above the suspension track 1; the conductor outer ring 3 is arranged to be of a circular ring shape, the conductor outer ring 3 is sleeved on the side wall of the suspension structure, the width of the conductor outer ring 3 is the same as that of the suspension structure, and the inner wall of the conductor outer ring 3 is fixedly connected with the outer surface of the side wall of the suspension structure.
The suspension stress of the suspension structure is shown in fig. 6, when the suspension structure is in a stable rotation state, the center line of the suspension structure is superposed with the center line of the suspension track 1, and the magnetic force between the suspension track 1 and the suspension structure is in the vertical direction at the moment, namely the suspension structure is subjected to the suspension force and the attraction force which are in the same straight line but in opposite directions; when the suspension structure is displaced transversely, the positions and the stress relationship of the suspension structure and the suspension track 1 are shown in fig. 7, and the suspension structure is displaced transversely, so that the magnetic force between the suspension track 1 and the permanent magnet wheel is deflected, the deflection direction is opposite to the displacement direction of the suspension structure, the suspension structure is pulled back to a correct operation position, the safe and stable operation of the magnetic levitation vehicle is ensured, the suspension force and the attraction force of the suspension structure are shown in fig. 6, the magnetic conductor strip 2 additionally laid in the suspension track 1 can ensure the magnetic levitation vehicle to operate in a centering manner, and a guiding function is realized.
Referring to fig. 1, the suspension structure in fig. 1 includes a hub 4 and a permanent magnet 5, the hub 4 is provided with a groove, the permanent magnet 5 is arranged in the groove, and the bottom of the permanent magnet 5 is fixedly connected with the inner bottom surface of the groove. Because the permanent magnet 5 is needed in the present embodiment, in order to prevent the permanent magnet 5 from falling off in the rotating process, the permanent magnet 5 is fixedly connected with the bottom surface in the groove.
Referring to fig. 1 and 2, through holes are formed in both side walls of the groove in fig. 1 and the permanent magnet 5, and the permanent magnet 5 is fixedly arranged in the groove by passing through the through holes through bolts 6. In this embodiment, if only the inner bottom surface of the groove is fixedly connected with the permanent magnet 5, the permanent magnet is easy to fall off the groove by rotating at a high speed, and therefore, the bolt 6 is further arranged to fix the permanent magnet in the groove.
Referring to fig. 1, 3, 6 and 7, the magnetization directions of the permanent magnets 5 are periodically arranged according to a Halbach array. Because the suspension structure in this embodiment adopts a Halbach structure arrangement, a time-varying magnetic field can be formed under the driving of the motor, the time-varying magnetic field will generate an induced current in the conductor plate, the interaction between the induced current and the time-varying magnetic field generates a suspension force in the vertical direction, meanwhile, an inherent resistance opposite to the tangential linear velocity of the magnetic wheel is generated to prevent the relative movement of the magnetic wheel, and the inherent resistance is conversely used as a driving force to enable the magnetic wheel to have a certain horizontal velocity, namely, the actual advancing velocity of the magnetic wheel. In addition, by adjusting the rotating speed of the wheels, the control of the running modes of the magnetic levitation vehicle, such as suspension, acceleration, deceleration, steering, braking and the like, can be realized.
Referring to fig. 1, 3 and 6, at least 4 permanent magnets 5 are provided, each permanent magnet 5 is provided with a fan-shaped ring structure, all the permanent magnets 5 surround a hollow cylinder, and the central axis of the hollow cylinder is parallel to the suspension track 1. In the embodiment, the permanent magnet 5 in the whole suspension structure is arranged to be a fan-ring structure, so that the strongest magnetic field intensity at the outer side of the permanent magnet 5 and the weakest central magnetic field are ensured, the utilization rate of the permanent magnet 5 is improved, the central axis of a hollow cylinder formed by the permanent magnet 5 is arranged in parallel with the suspension track 1, so that the permanent magnet 5 is driven by a motor to form a time-varying magnetic field, the magnetic field generates induction current in a conductor plate, the interaction of the induction current and the time-varying magnetic field generates suspension force along the vertical direction, meanwhile, inherent resistance opposite to the tangential linear velocity of the magnetic wheel is generated to prevent the magnetic wheel from moving relatively, and the inherent resistance is conversely used as driving force to enable the magnetic wheel to have a certain horizontal velocity, so that the suspension structure can move on the suspension track 1, in addition, the suspension structure generates the time-varying magnetic field by utilizing mechanical rotation, and in-situ quasi-static suspension can also be realized.
Referring to fig. 1 and 3, the number of the permanent magnets 5 is preferably 16, and the angular interval between the magnetization directions of two adjacent permanent magnets 5 is preferably 22.5 degrees.
Referring to fig. 1, 3, 5 and 6, the outer conductor ring 3 is provided as a metal outer conductor ring 3. The metal material is preferably aluminum, copper and silver, the outer ring 3 of the metal conductor is a circular ring and is completely arranged outside the permanent magnet, a gap in fig. 1 is used for showing the permanent magnet 5, the suspension structure in the embodiment rotates above the suspension track 1 at a certain speed, and a time-varying magnetic field of a corresponding structure is formed along with the mechanical rotation of the suspension structure. According to the law of electromagnetic induction, the time-varying magnetic field penetrates into the suspension track 1 and generates an induced current and a mirror image magnetic field, the mirror image magnetic field generates secondary induction in a good conductor of the outer ring of the magnetic wheel, so that another induced current is generated in the outer ring of the metal conductor, and the mirror image magnetic field in the conductor plate interacts with the secondary induced current in the outer ring of the metal conductor, so that additional suspension force and driving force are generated.
In addition, the suspension structure also generates a magnetic resistance force which is downward along the direction of the perpendicular bisector of the suspension track 1 and is used for propelling the suspension structure to move forward to realize traction, and the structure is a suspension and driving system of the magnetic suspension automobile under the permanent magnet electric suspension system.
Referring to fig. 1, 3, 4 and 6, the thickness of the conductor outer ring 3 is set to be 2-6mm. The thickness of the outer ring 3 of the conductor is preferably 6mm, and as shown in fig. 6, under the initial condition without any outer ring, the levitation force of the levitation structure gradually increases with the increase of the rotation speed, but when the rotation speed is increased to 600rpm, the levitation force increases with the increase of the rotation speed and is maintained at about 8 kN. After the outer ring of the conductor is added, in a low-speed stage, the suspension force of the suspension structure presents the same growth trend with the initial condition and can be increased along with the increase of the rotating speed; however, after the rotation speed is gradually increased, the state of the outer ring of the conductor is different from the stability of the initial state, the levitation force is gradually increased along with the increase of the rotation speed, and the increase amplitude is more obvious when the thickness of the outer ring of the conductor is larger. In summary, it can be known that the thickness of the outer ring of the conductor can also affect the magnitude of the levitation force of the levitation structure, and within a certain range, the larger the thickness is, the more significant the increase of the levitation force is.
Referring to fig. 1 and 2, the width of the levitation track 1 is greater than the width of the levitation structure. In this embodiment, since the levitation track rotates on the levitation track, the width of the levitation track 1 is preferably larger than the width of the levitation structure.
Referring to fig. 1 and 2, a connection line between a midpoint of the suspension structure and a midpoint of the magnetic conductor strip 2 is perpendicular to the magnetic conductor strip 2, and the magnetic conductor strip 2 is arranged parallel to the suspension track 1. In the embodiment, the magnetic conductor strips 2 are arranged in parallel with the levitation track 1, and the magnetic force between the levitation track 1 and the levitation structure is in the vertical direction at this time, that is, the levitation structure receives the levitation force and the attraction force which are in the same line but in opposite directions.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a device for improve magnetic suspension car suspension guidance quality can which characterized in that includes:
a levitation track (1);
the magnetic conductor strip (2) is arranged in the suspension track (1), the magnetic conductor strip (2) is fixedly arranged in the middle of the suspension track (1), and the bottom surface of the magnetic conductor strip (2) and the bottom surface of the suspension track (1) are positioned on the same horizontal plane;
the suspension structure is arranged right above the suspension track (1); and
conductor outer lane (3), conductor outer lane (3) set up to the ring type, conductor outer lane (3) cover is established on the lateral wall of suspension structure, the width of conductor outer lane (3) with suspension structure's width is the same, the inner wall of conductor outer lane (3) with suspension structure's lateral wall external surface is fixed and is linked to each other.
2. The device for improving the suspension guidance performance of a magnetic levitation vehicle as recited in claim 1, wherein: the suspension structure comprises a hub (4) and a permanent magnet (5), wherein a groove is formed in the hub (4), the permanent magnet (5) is arranged in the groove, and the bottom of the permanent magnet (5) is fixedly connected with the inner bottom surface of the groove.
3. The device for improving the suspension guidance performance of a magnetic levitation vehicle as recited in claim 2, wherein: two side walls of the groove and the permanent magnet (5) are provided with through holes, and a bolt (6) penetrates through the through holes to fixedly arrange the permanent magnet (5) in the groove.
4. The device for improving the levitation guiding performance of the magnetic levitation vehicle as recited in claim 2, wherein: the magnetization directions of the permanent magnets (5) are periodically arranged according to a Halbach array.
5. The device for improving the suspension guidance performance of a magnetic levitation vehicle as recited in claim 2, wherein: the number of the permanent magnets (5) is at least 4, each permanent magnet (5) is of a fan-ring structure, all the permanent magnets (5) are enclosed into a hollow cylinder, and the central axis of the hollow cylinder is parallel to the suspension track (1).
6. The device for improving the suspension guidance performance of a magnetic levitation vehicle as recited in claim 3, wherein: the number of the permanent magnets (5) is 16, and the angle interval of the magnetization directions of two adjacent permanent magnets (5) is 22.5 degrees.
7. The device for improving the suspension guidance performance of a magnetic levitation vehicle as recited in claim 1, wherein: the conductor outer ring (3) is arranged as a metal conductor outer ring (3).
8. The device for improving the suspension guidance performance of a magnetic levitation vehicle as recited in claim 1, wherein: the thickness of the conductor outer ring (3) is set to be 2-6mm.
9. The device for improving the suspension guidance performance of a magnetic levitation vehicle as recited in claim 1, wherein: the width of the suspension track (1) is larger than that of the suspension structure.
10. The device for improving the suspension guidance performance of a magnetic levitation vehicle as recited in claim 1, wherein: the connecting line of the middle point of the suspension structure and the middle point of the magnetic conductor strip (2) is perpendicular to the magnetic conductor strip (2), and the magnetic conductor strip (2) is parallel to the suspension track (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211256614.7A CN115341419B (en) | 2022-10-14 | 2022-10-14 | Device for improving suspension guide performance of magnetic suspension automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211256614.7A CN115341419B (en) | 2022-10-14 | 2022-10-14 | Device for improving suspension guide performance of magnetic suspension automobile |
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| CN115341419A true CN115341419A (en) | 2022-11-15 |
| CN115341419B CN115341419B (en) | 2022-12-30 |
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| CN115341419B (en) | 2022-12-30 |
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