JP3340478B2 - Side wall floating coil device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of electromagnetic attraction with a superconducting magnet mounted on a bogie of a superconducting maglev railway vehicle.
The present invention relates to a side wall levitation coil device that guides and levitates a vehicle by a repulsive force, and more particularly to a mounting structure of the levitation coil.

[0002]

2. Description of the Related Art FIGS. 3 and 4 are described, for example, in "Power Supply and Train Control of Yamanashi Linear Test Line"("Railway and Electric Technology", Vol. 2, No. 1, p. 18-23, 1991.1). It is the perspective view and front view which show an example of the mounting structure of the conventional side wall levitation coil device performed.

[0003] In the drawings, reference numeral 1 denotes a track bed of a superconducting magnetic levitation railway, 2 denotes a track side wall provided on both sides of the track bed 1, 3 denotes a running path provided on the track bed 1, and 4 denotes a track. A concrete panel (hereinafter, referred to as a panel) as a coil mounting member mounted on the opposing wall surface of the raceway side wall 2, 6 is a standard levitation coil mounted on the panel 4 except for both ends of the panel 4, 7 is both ends of the panel 4 These are end levitation coils attached to the respective parts, and the standard levitation coil 6 and the end levitation coil 7 constitute a levitation coil.

[0004] Reference numeral 8 denotes a gap between the panels 4 generated when the panel 4 is attached to the raceway side wall 2, and 9 denotes a unit coil. The unit coil 9 is formed in one standard levitation coil 6 or one end levitation coil 7. Two or four pieces are molded.

Next, the operation of the above-mentioned conventional side wall floating coil device will be described. When a vehicle of the superconducting magnetic levitation railway travels along the traveling path 3, a standard levitation mounted on the track side wall 2 via the panel 4 by an electromagnetic induction action from a superconducting magnet mounted on a bogie of the vehicle. Unit coil 9 of coil 6 or end floating coil 7
Current is induced in the current. An electromagnetic force is generated between the induced current and the superconducting magnet, and a vertical electromagnetic force,
That is, the vehicle can levitate by the action of the levitating force.

Here, when the standard levitation coil 6 and the end levitation coil 7 are attached to the track side wall 2, in order to improve the workability of attachment, the standard levitation coils 6 and The end levitation coil 7 is mounted, the panel 4 is transported from the factory to the track laying point, and the panel 4 is mounted on the track side wall 2. In this case, the panel 4 is attached to the track side wall 2 with a predetermined gap 8 so that the gap 8 can absorb the heat shrinkage of the track structure due to a change in air temperature.

Further, since the panel 4 is transported from the factory to the place where the track is laid, the panel 4 needs to have a maximum length of about 10 to 13 m. As shown in FIG. 4, the standard levitation coil 6 and the end levitation coil 7 are attached to the panel 4 without any gap, but the bolt for attaching the levitation coil to the end of the panel 4 is a concrete structure that is covered with concrete. Can not be installed due to restrictions. For this purpose, an end floating coil 7 dedicated to the end of the panel 4 is required. In the end levitation coil 7, the length of the horizontal side of the unit coil 9 is shorter than the length of the horizontal side of the unit coil 9 of the standard levitation coil 6 so as to satisfy the restrictions of the concrete structure. Therefore, the pitch 11 between the end levitation coils 7 sandwiching the gap 8 between the panels 4 is larger than the pitch 10 between the coils of the standard levitation coil 6.

[0008] In addition, although a configuration in which only the standard levitation coils 6 are evenly arranged in the panel 4 has been considered, even in this case, the standard levitation coil sandwiching the gap 8 is formed by the concrete covering and the gap 8 between the panels 4. The pitch between the coils of the coil 6 is larger than the pitch between the coils of the other standard levitation coils 6.

[0009]

Since the conventional side wall levitation coil device is constructed as described above, when the vehicle travels, it passes through the end levitation coil 7 for each end of the panel 4. It passes through a coil pitch larger than the uniform pitch of the standard levitation coils 6 disposed in the panel 4. For this reason, a small levitation force acts on the vehicle at the end levitation coil 7 having a large pitch between the coils, and for example, the levitation force pulsation 1 shown in FIG.
4, such a pulsating force pulsation 14 vibrates the vehicle when the vehicle is traveling, and when the vehicle travels on a curved portion, centrifugal force acts on the vehicle, and The distance between the superconducting magnet mounted on the trolley and the left and right levitation coils attached to the left and right track side walls changes, resulting in imbalance in the left and right levitation forces, deteriorating ride comfort. Was.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and it is possible to prevent a vehicle from lowering a levitation force necessary for performing a levitation traveling and to reduce a levitation coil at an end of a panel. It is a first object of the present invention to obtain a side wall levitation coil device capable of reducing the pulsation of the levitation force.

It is a second object of the present invention to provide a side wall levitation coil device capable of suppressing imbalance in levitation force from left and right levitation coils in a curved portion of a track.

[0012]

According to a first aspect of the present invention, there is provided a side wall levitation coil device comprising: a plurality of coil mounting members disposed on a side of a track bed of a superconducting magnetic levitation railway;
An end levitation coil attached to both ends of the coil attachment member, and a standard levitation coil attached between the end levitation coils of the coil attachment member. This is shifted upward from the coil center in the vertical direction of the coil.

Further, according to a second aspect of the present invention, there is provided a side wall levitation coil device, comprising: a track side wall provided on both sides of a curved part of a track of a superconducting magnetic levitation type railway; And a vertical coil center of the floating coil mounted on one of the track side walls is shifted from a vertical coil center of the floating coil mounted on the other track side wall. .

[0014]

In the first aspect of the present invention, since the vertical coil center of the end levitation coil is displaced above the vertical coil center of the standard levitation coil, the end levitation coil is provided. In this case, the vertical displacement is larger than that of the standard levitation coil, and the levitation force that the vehicle receives from the levitation coil is greater than that of the end levitation coil. As a result, the decrease in the levitation force due to the increase in the pitch between the coils in the gap between the panels is offset, and the levitation force equivalent to the section of the uniform pitch between the standard levitation coils is obtained, and the pulsation of the levitation force is also obtained. This can be improved to the same extent as a section having a uniform pitch between coils.

[0015] In a second aspect of the present invention,
In the curved part of the track, the vertical coil center of the floating coil attached to one track side wall is shifted from the vertical coil center of the floating coil mounted on the other track side wall. It is possible to suppress the unbalance of the levitation force from the levitation coils disposed on the both track side walls, which is generated when the vehicle is hit outward by the centrifugal force.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. Embodiment 1 FIG. FIG. 1 is a front view of a side wall levitation coil device showing an embodiment according to the first invention of the present invention. In the figure, the same or corresponding portions as those of the conventional side wall levitation coil device shown in FIGS. The same reference numerals are given and the description is omitted. In the drawing, reference numeral 5 denotes an end levitation coil in which the length of the horizontal side of the unit coil 9 is shorter than the length of the horizontal side of the unit coil 9 of the standard levitation coil 6, and the end levitation coil 5 is arranged in the vertical direction. The center of the coil is the standard floating coil 6
The panel 15 is attached to the end of the panel 15 so as to be located above the vertical coil center.

Next, the operation of the first embodiment will be described. The pitch between the end levitation coils 5 sandwiching the gaps 8 between the panels 15 is larger than the pitch between the coils of the standard levitation coils 6 as in the conventional side wall levitation coil device, and passes through the gap 8 between the panels 15. The levitation force received by the vehicle when the vehicle passes through the standard levitation coil 6 is smaller than the levitation force received when passing through the standard levitation coil 6.

However, since the vertical coil center of the end levitation coil 5 is located above the vertical coil center of the standard levitation coil 6, the end levitation coil 5
In this case, the vertical displacement is larger than that of the standard levitation coil 6. Therefore, the levitation force received by the vehicle when passing through the end levitation coil 5 is greater than the levitation force received when passing through the standard levitation coil 6.

As a result, the decrease in the levitation force received by the vehicle when passing through the gap 8 between the panels 15 is canceled out, and the same levitation force as the pitch interval between the uniform levitation coils of the standard levitation coil 6 is obtained. As shown in FIG. 2, the levitation force pulsation 14 was also improved to the same extent as the levitation force pulsation 12 in the uniform pitch arrangement section.

Here, FIG. 2 shows a pulsating waveform of a levitation force received by a superconducting magnetic levitation type railway vehicle at a speed of 550 km / h. In FIG. 13 shows a pulsation waveform of the levitation force in the first embodiment, and 14 shows a pulsation waveform of the levitation force in the conventional side wall levitation coil device.

As described above, according to the first embodiment, since the vertical coil center of the end levitation coil 5 is located above the vertical coil center of the standard levitation coil 6, the end levitation coil 5 is positioned above the standard levitation coil 6. The levitation force received by the vehicle when passing through the coil 5 can be substantially equal to the levitation force received by the vehicle when passing through the standard levitation coil 6, and the pulsation force that the vehicle receives from the levitation coil is reduced. The effect is that the ride comfort of the vehicle is greatly improved.

Embodiment 2 FIG. In the first embodiment, the panel 15
, The standard levitation coil 6 is attached to the portion of the panel 15 between the end levitation coils 5 without any gap, and the vertical coil center of the end levitation coil 5 is set to the standard levitation coil. In this embodiment, only the standard levitation coil 6 is attached to the panel 15 without any gap, and is attached to the end of the panel 15 in the second embodiment. The vertical coil center of the standard levitation coil 6 is located above the vertical coil center of the other standard levitation coils 6, and the same effect is obtained.

Embodiment 3 FIG. Embodiment 3 is an embodiment according to the second invention of the present invention. In the third embodiment, in the levitation coil attached to the opposite wall surface of the track side wall 2 constituting the curved portion of the track, the vertical coil center of the levitation coil attached to the inner track side wall 2 is attached to the outer track side wall 2. The levitation coil is located above the vertical coil center.

Next, the operation of the third embodiment will be described. Generally, when a vehicle passes through a curved portion of a track, the vehicle is shaken outward by centrifugal force. As a result, the distance between the superconducting magnet and the levitation coil is reduced outside the bogie on which the superconducting magnet is mounted, and the levitation force is increased.
Inside the bogie, the distance between the superconducting magnet and the levitation coil increases, the levitation force decreases, and imbalance occurs in the left and right (inside and outside) levitation forces.

However, the vertical coil center of the levitation coil attached to the inner raceway side wall 2 is moved to the outer raceway side wall 2.
Because the levitation coil mounted on the inner raceway side wall 2 is located above the vertical coil center of the levitation coil mounted on the inner raceway wall 2, the levitation coil has a large vertical displacement, and a large levitation force is obtained. In the levitation coil attached to 2, the vertical displacement is small, and a small levitation force is obtained.

Therefore, the imbalance of the left and right (inside and outside) levitation forces generated by the centrifugal force acting when the vehicle passes through the curved part of the track is adjusted so that the vertical coil centers of the levitation coils are shifted from the inner and outer track side walls. 2 can be solved by attaching a levitation coil.

As described above, according to the third embodiment, the vertical coil center of the levitating coil attached to the inner raceway side wall 2 is positioned higher than the vertical coil center of the levitating coil attached to the outer raceway side wall 2. Since it is located, the imbalance of the left and right levitation forces generated by the centrifugal force in the curved portion of the track can be eliminated, and the effect that the riding comfort of the vehicle is greatly improved can be obtained.

In the third embodiment, the vertical coil center of the floating coil attached to the inner raceway side wall 2 is
The levitation coil mounted on the outer raceway side wall 2 is positioned above the vertical coil center. However, depending on the cant amount (rail inclination) determined by the radius of curvature of the raceway, the inner raceway side wall 2 is not used. Optimum design by setting the vertical coil center of the levitation coil to be mounted on the outer track side wall 2 below the vertical coil center of the levitation coil mounted on the outer raceway side wall 2, or by setting the amount of deviation between the two coil centers Can be.

Further, in each of the above embodiments, the floating coils of the end floating coil 5 and the standard floating coil 6 are described as being mounted on the raceway side wall 2 via the concrete panel 15 which is a coil mounting member. The coil may be attached to the track side wall 2 via a concrete beam or directly to the track side wall 2.

[0030]

Since the present invention is configured as described above, it has the following effects.

A side wall levitation coil device according to a first aspect of the present invention is provided with a plurality of coil mounting members disposed on a side portion of a track bed of a superconducting magnetic levitation railway, and mounted on both ends of the coil mounting members. End levitation coil, and a standard levitation coil attached between the end levitation coils of the coil mounting member, and the vertical coil center of the end levitation coil is set to be smaller than the vertical coil center of the standard levitation coil. Since it is shifted upward, a decrease in the levitation force due to an increase in the pitch between the end levitation coils is suppressed, the pulsation of the levitation force that the vehicle receives from the levitation coil is small, and the riding comfort can be greatly improved.

Further, according to a second aspect of the present invention, there is provided a side wall levitation coil device, comprising: a track side wall provided on both sides of a curved section of a track of a superconducting magnetic levitation type railway; Since the vertical coil center of the floating coil attached to one track side wall is shifted from the vertical coil center of the floating coil attached to the other track side wall, Imbalance of the left and right levitation forces in the curved part of the track is suppressed, and the riding comfort can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a front view of a side wall floating coil device showing Embodiment 1 of the present invention.

FIG. 2 is a graph showing a pulsating waveform of a levitation force received by a superconducting magnetic levitation type railway vehicle during traveling.

FIG. 3 is a perspective view showing an example of a mounting structure of a conventional side wall floating coil device.

FIG. 4 is a front view showing an example of a conventional side wall floating coil device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Track floor 2 Track side wall 5 End levitation coil 6 Standard levitation coil 15 Concrete panel (coil mounting member)

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor: Shigeya Ohama 8-1-1, Tsukaguchi-Honmachi, Amagasaki City Mitsubishi Electric Corporation Itami Works (56) References JP-A-55-89507 (JP, A) Kaihei 3-93902 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) E01B 25/30-25/32 B60L 13/00-13/10

Claims (2)

(57) [Claims] 1. A plurality of coil mounting members disposed on a side of a track bed of a superconducting magnetic levitation railway, an end levitation coil mounted on both ends of the coil mounting member, and the coil mounting member. A standard levitation coil attached between the end levitation coils, wherein a vertical coil center of the end levitation coil is shifted upward from a vertical coil center of the standard levitation coil. Side wall floating coil device. 2. A track for a superconducting magnetic levitation railway, comprising: a track side wall provided on both sides of a curved bed of a track; and a levitation coil mounted on each of opposing surfaces of the track side wall. A side-wall levitation coil device, wherein the vertical coil center of the levitation coil attached to the side wall is shifted from the vertical coil center of the levitation coil attached to the other track side wall.