JP3217018B2 - Magnetic levitation railway track and method of manufacturing ground coil thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic levitation type railway track on which a vehicle travels by a propulsive force and a levitation / guiding force acting on a vehicle on which a superconducting electromagnet is mounted, and a method of manufacturing a ground coil thereof. is there.

[0002]

2. Description of the Related Art FIG. 4 is a perspective view of a main part of a conventional concrete beam type magnetic levitation type railway track. In FIG. A racetrack-shaped first propulsion coil 6 disposed on the beam 2 is overlaid on the first propulsion coil 4, and a second propulsion coil 7 is disposed on the vehicle (not shown) side. Is a floating guide coil disposed on the vehicle side so as to overlap with the second propulsion coil 6. The track 1 is composed of the concrete beam 2, the first propulsion coil 4, the second propulsion coil 6, and the levitation guide coil 7.

FIG. 5 shows the first propulsion coil 4 shown in FIG.
FIG. 6 is an exploded perspective view showing a state where the second propulsion coil 6 is attached to the concrete beam 2, FIG. 6 is a front view of the first propulsion coil 4 and the second propulsion coil 6 of FIG. 5, and FIG. It is a front view when the 1st propulsion coil 4 and the 2nd propulsion coil 6 are attached to the concrete beam 2. FIG. Reference numeral 8 denotes a first propulsion coil 4 and a second propulsion coil 2 which are formed on the side wall of the concrete beam 2 at predetermined intervals as a reaction of a propulsion force applied to the vehicle by the first propulsion coil 4 and the second propulsion coil 6. A main projection 9 for supporting the force acting on the propulsion coil 6 is a sub-projection provided between the main projections 8, 10.
An insert 11 is a metal fitting embedded in the concrete beam 2 to form a female screw, 11 has a curved surface portion having the same shape as the outer curved surface portion A of the first and second propulsion coils 4 and 6, and has first and second ends at both ends. It is a support member having a pressing portion 11a for pressing the second propulsion coils 4, 6. Reference numeral 12 denotes a bolt that forms fastening means together with the insert 10. The bolt 12 penetrates the bolt hole 11 b of the support member 11 with the bolt 12 and is screwed to the insert 10, and then the end of the bolt 12 is screwed with the nut 13. The support member 11 is fixed to the concrete beam 2. 14 is an outer curved surface portion A of the first propulsion coil 4 and the second propulsion coil 6
A fixing member having a curved surface portion having the same shape as that of the fixing member 14
Through the bolt hole 14a of the
0 and then with a nut 13
The fixing member 14 is fixed to the concrete beam 2. 1
Reference numeral 5 is interposed between the main projection 8 and the first and second propulsion coils 4 and 6, and the first and second propulsion coils 4 and 6 are directly pressed against the rough main projection 8 to make the first And an arc-shaped spacer having a wedge-shaped cross section for preventing the second propulsion coils 4 and 6 from being damaged.

FIG. 8 is a front view of the floating guide coil 7 of FIG.
FIG. 9 is a circuit diagram of the levitation guide coil 7. Reference numeral 20 denotes an aluminum letter-shaped coil unit, 21 denotes a cross-shaped coil formed by arranging the coil units 20 side by side, and the coil 21 is embedded in an epoxy resin by insert molding to form a floating guide coil body. 22 are formed. The coils 20 are separated from each other within the levitation guide coil main body 22,
They are connected by a connection unit 23. Levitation guide coil body 22
From the lower end of the first to third outlet portions 24a, 24
b and 24c respectively protrude. The levitation guide coils 7 composed of the levitation guide coil main body 22 and the outlet portions 24a, 24b, 24c face each other, and the levitation guide coils 7 are connected to each other by a null flux cable 25.

Next, a procedure for attaching the first and second propulsion coils 4 and 6 of the magnetic levitation type railway track having the above configuration to the concrete beam 2 will be described. First, the spacer 15 is bonded to the main projection 8 of the concrete beam 2 using a silicone epoxy adhesive. After that, the support member 11 is fixed to the concrete beam 2 using bolts 12 and nuts 13. Next, the inner curved surface portion B of the first and second propulsion coils 4 and 6 on the fixing member 14 side is
Press Also, at this time, in a state where the end portions of the propulsion coils 4 and 6 are locked to the holding portions 11a of the support member 11,
The fixing member 14 is fixed to the concrete beam 2 using bolts 12 and nuts 13, and the propulsion coils 4 and 6 are attached to the concrete beam 2. Thereafter, between the spacer 15 and the inner curved surface portion B, and between the fixing member 14 and the outer curved surface portion A
Is filled with a silicon-based filler (not shown), and the propulsion coil 4 for the concrete beam 2
6 is completed.

The propulsion coils 4 and 6 are attached to the concrete beam 2.
After mounting, the floating guide coil 7 is
Is fixed to the concrete beam 2.

In the magnetic levitation railway having the above-described configuration, three-phase alternating current is applied to the first propulsion coil 4 and the second propulsion coil 6, and the first propulsion coil 4, the second propulsion coil 6, and
A propulsion force is given to the vehicle by an electromagnetic induction effect of a superconducting electromagnet (not shown) mounted on the vehicle. In addition, when a levitation force is given by the electromagnetic induction action of the superconducting electromagnet and the levitation guide coil 7, and when the vehicle leans to one of the left and right concrete beams 2, a current flows through the null flux cable 25, and A guiding force for guiding the vehicle is given to the center between the concrete beams 2. As described above, the vehicle is provided with a propulsive force by the electromagnetic induction effect of the first propulsion coil 4 and the second propulsion coil 6 and the superconducting electromagnet, and the electromagnetic induction effect of the superconducting electromagnet and the levitation guide coil 7 is provided. The vehicle is provided with a lifting force and a guiding force.

[0008]

In the magnetic levitation type railway track having the above-described structure, the first propulsion coil 4 and the second propulsion coil 2 are attached to the concrete beam 2 using dedicated members such as the support member 11, the fixing member 14, and the spacer 15. After fixing the propulsion coil 6 of
The floating guide coil 7 must be fixed to the concrete beam 2 so as to overlap with the second propulsion coil 6, and the propulsion coils 4, 6 may be damaged by colliding with the main protrusion 8 and the fixing member 14 due to vibration. To prevent this, the propulsion coils 4, 6
The propulsion coils 4 and 6 must be firmly fixed to the concrete beam 2 by interposing a spacer 15 and a silicon-based filler between the main projection 8 and the fixing member 14, and the fixing operation is troublesome. There is a problem that it takes a lot of time if it exists. Further, since the above-mentioned dedicated member is required, there has been a problem that the manufacturing cost is increased accordingly.

An object of the present invention is to solve such a problem, and the fixing operation for fixing the propulsion coil and the floating guide coil to the support is greatly simplified.
It is another object of the present invention to provide a magnetic levitation type railway track in which a special member required in the past becomes unnecessary and the manufacturing cost is reduced. It is another object of the present invention to provide a method of manufacturing a ground coil of a magnetic levitation railway track that can be easily manufactured.

[0010]

In the magnetic levitation type railway track according to the first aspect of the present invention, the ground coil forms a space by contacting the first outer body and the first outer body. Second
And a propulsion coil for applying a propulsion force to the vehicle by an electromagnetic induction effect of an outer body of the vehicle and a magnet mounted on the vehicle and housed in the space, and levitated on the vehicle by an electromagnetic induction effect of the magnet and housed in the space. A levitation guide coil that gives force and guidance force, and an insulating material filled in the space,
Further, a track-shaped groove-shaped storage portion is formed in the first outer body, and a propulsion coil is stored in the storage portion.

[0011]

Further, in the magnetic levitation railway track according to the second aspect, an engaging portion is provided on the ground coil, and the engaging portion is engaged with the engaged portion of the support.

In the magnetic levitation type railway track according to a third aspect of the present invention, the fastening means includes an insert buried in the support and made of metal and internally threaded, and a resin bolt screwed to the insert. It is a thing.

Further, in the magnetic levitation type railway track according to the fourth aspect , the insert is made of stainless steel, and the bolt is made of a polyamide resin.

According to a fifth aspect of the present invention, there is provided a method of manufacturing a ground coil for a magnetically levitated railroad track, wherein a propulsion coil and a levitation guide coil are provided in a space formed between the first and second outer bodies. And a step of filling and curing the insulating material before being cured in the space.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 An embodiment of a magnetic levitation railway track according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a ground coil of a magnetic levitation type railway track according to Embodiment 1, and FIG.
FIG. 3 is an exploded perspective view of a main part of the ground coil of FIG. In the figure, 30 is formed by winding an aluminum conductor 31 having a rectangular cross section a plurality of times,
A propulsion coil that applies a propulsion force to the vehicle by electromagnetic induction with a superconducting electromagnet (not shown) mounted on the vehicle. The propulsion coil 30 includes a propulsion coil (not shown) adjacent to both ends of the conductor 31. It has a first outlet 32a and a second outlet 32b that are electrically connected.

A first floating guide coil 33a is formed by winding an aluminum conductor 34a having a rectangular cross section in the shape of a star, and an aluminum conductor 34b having a rectangular cross section is formed into a sun shape. The second levitation guide coil unit, which is wound and is arranged in parallel with the first levitation guide coil unit 33a, 35 electrically connects the first levitation guide coil unit 33a and the second levitation guide coil unit 33b. The connected connecting portion 36 is composed of a first levitation guide coil 33a and a second levitation guide coil 33b, and has a levitation force on the vehicle by an electromagnetic induction action of a superconducting electromagnet (not shown) mounted on the vehicle. A floating guide coil having a cross-shape that provides a guide force and a guide force. The floating guide coil 36 is provided at each end of a conductor 34a and connected to a null flux cable (not shown). And a lead-out portion 37a and the second lead-out portion 37b. Further, a third lead portion 37c is provided at an end of the conductor 34b and connected to a null flux cable (not shown).

Numeral 40 denotes a first outer shell made of ABS resin, and 41 denotes an ABS provided opposite to the first outer shell 40.
The second outer shell 42 made of resin is the first outer shell 4.
A storage part 43a formed in a track shape on the inner surface of the first housing 0 for storing the propulsion coil 30; a first drawer part 43a formed at the lower part of the first outer body 40 for drawing out the first outlet 32a to the outside; 43b is a second drawer portion formed at the lower portion of the first outer cover 40 for pulling out the second outlet portion 32b to the outside, and 44 is formed at an intermediate portion of the first outer cover 40 so as to protrude outward. The projecting portion 44 is an engaging portion, and the projecting portion 44 engages with a concave portion (not shown) as an engaged portion formed on a concrete beam (not shown) to support the entire load of the ground coil. It is supposed to.

Reference numeral 45 denotes a first outer cover 40 and a second outer cover 4
An insulating material made of an epoxy resin which is press-fitted and cured between the first and second insulating members and insulates the propulsion coil 30 and the floating guide coil 36;
6, four corners of the first and second outer shells 40 and 41;
Bolt holes 47 formed in the center of the first and second outer shells 40 and 41 are bolts made of a polyamide resin penetrating through the bolt holes 46. The bolt 47 is screwed into an insert (not shown) made of a stainless steel fitting which is embedded in the concrete beam and has an internal thread, and the ground coil is fixed to the concrete beam. The fastening means is constituted by the bolt 47 and the insert.

In the levitation coil of the above-mentioned magnetic railway levitation type railway track, first, the propulsion coil 30 and the levitation guide coil 36 are placed in a space formed by joining the first outer cover 40 and the second outer cover 41. Fit. At this time, the propulsion coil 30
Are accommodated in the accommodating portion 42, and a spacer (not shown) is interposed between the levitation guide coil 36 and the propulsion coil 30 so that the levitation guide coil 36 does not contact the propulsion coil 30. . Next, the first outer cover 40, the second outer cover 41, the propulsion coil 30, and the levitation guide coil 36 are integrated by press-fitting a liquid epoxy resin into the space and thermally curing the same. Then, the first shell 4
By forming through holes from the four corners of 0 and the center thereof, a bolt hole 46 penetrating the first outer body 40, the second outer body 41 and the insulating material 45 is formed, and a ground coil is manufactured.

In the ground coil manufactured as described above, the projecting portion 44 is formed in the concave portion formed in the concrete beam.
To temporarily fix the ground coil to the concrete beam. Next, a bolt 47 is passed through the bolt hole 46 and screwed into the insert to fix the ground coil to the concrete beam.

In the magnetic levitation railway having the above configuration, a three-phase alternating current is applied to the propulsion coil 30,
A propulsion force is given to the vehicle by an electromagnetic induction effect of a superconducting electromagnet (not shown) mounted on the vehicle. In addition, a levitation force and a guide force are given by an electromagnetic induction action of the superconducting electromagnet and the levitation guide coil 36.

Although the epoxy resin is used as the material of the insulating material 45 in the above embodiment, a cross-linked polyethylene having excellent insulation and heat resistance may be used. Also, the first
Polycarbonate, SMC (sheet molding compound) or the like may be used as the material of the outer shell and the second outer shell. Alternatively, an insert embedded in the support and made of resin and internally threaded may be used, and a non-magnetic steel bolt may be used to be screwed to the insert.

[0024]

As described above, in the magnetic levitation type railway track according to the first aspect of the present invention, the first outer body and the second outer surface which is in contact with the first outer body to form a space. And a propulsion coil for applying a propulsion force to the vehicle by an electromagnetic induction effect of an outer body of the vehicle and a magnet mounted on the vehicle and housed in the space, and levitated on the vehicle by an electromagnetic induction effect of the magnet and housed in the space. Since a ground coil having a levitation guide coil for providing force and guiding force and an insulating material filled in the space is provided, the propulsion coil is fixed by fixing a single ground coil to a support. In addition, since the levitation guide coil is fixed to the support, the operation of fixing the propulsion coil and the levitation guide coil is greatly simplified. Conventionally, the propulsion coil was a single unit, and the propulsion coil could not be directly fixed to the support, and a dedicated member for fixing the propulsion coil to the support was required. And the manufacturing cost is also reduced.

[0025] Also, a groove-shaped housing section in track shape to the first skin member, since so as to house the propulsion coils on the housing part, in producing the ground coils, the first skin The positioning of the propulsion coil in the space formed by the body and the second outer body is simplified, and the ground coil is easily manufactured.

According to the magnetic levitation railway track of the second aspect , the ground coil is provided with the engaging portion, and the engaging portion is engaged with the engaged portion of the support. When the coil is fixed, no time is required for positioning the ground coil with respect to the support, and the engaging portion can be temporarily engaged by engaging the engaged portion with the engaged portion, thereby improving the fixing workability.

According to the magnetic levitation railway track of the third aspect, a resin bolt is used as the bolt embedded in the support and screwed to the metal-threaded insert. It is non-magnetic and does not generate magnetic resistance. Also, no seizure occurs during screwing between the bolt and the insert.

According to the magnetic levitation type railway track of the fourth aspect , since bolts made of polyamide resin are used for inserts made of stainless steel, sufficient strength can be obtained at low cost. It is possible to obtain the bolt having.

Further, according to the manufacturing method of the ground coils for magnetic levitation railway track according to claim 5, levitation and propulsion coils the formed space portion between the first skin member and the second skin member Since the method includes a step of disposing the guide coil and a step of filling and curing the insulating material before being cured in the space, the ground coil integrated with the propulsion coil and the floating guide coil can be easily manufactured. Can be manufactured.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a ground coil of a magnetically levitated railway track of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is an exploded perspective view of a main part of the ground coil of FIG. 1;

FIG. 4 is a perspective view of a main part of a conventional magnetic levitation type railway track.

FIG. 5 is an exploded perspective view showing a state where the first propulsion coil and the second propulsion coil in FIG. 4 are attached to a concrete beam.

FIG. 6 is a front view of the propulsion coil of FIG. 5;

FIG. 7 is a front view when a first propulsion coil and a second propulsion coil are attached to a concrete beam.

FIG. 8 is a front view of the propulsion coil of FIG.

FIG. 9 is a circuit configuration diagram of a levitation guide coil.

[Explanation of symbols]

30 propulsion coil, 36 levitation guide coil, 40 first
Outer skin body, 41 second outer skin body, 42 storage section, 44
Projection (engagement), 45 insulation, 47 volts.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E01B 25/30-23/32 B61B 13/00 B60L 13/10

Claims (5)

(57) [Claims] 1. A magnetic levitation railway track comprising: a pair of support members provided opposite to each other; and a ground coil fixed to the support member by fastening means, wherein the ground coil comprises a first coil. A propelling force to the vehicle by an electromagnetic induction effect of the outer skin body, a second outer skin body that abuts on the first outer skin body to form a space, and a magnet that is housed in the space and mounted on the vehicle. A propulsion coil, a levitation guide coil housed in the space, and a levitation guide coil for providing a levitation force and a guidance force to the vehicle by an electromagnetic induction action of the magnet, and an insulating material filled in the space, A magnetic levitation railway track in which a track-shaped groove-shaped storage portion is formed in the outer cover body, and a propulsion coil is stored in the storage portion. 2. The magnetic levitation railway track according to claim 1, wherein an engaging portion is provided on the ground coil, and the engaging portion is engaged with an engaged portion provided on the support. Wherein the fastening means includes an insert which is tapping made embedded in the support metal, according to claim 1 or請 and a threaded been resin bolts in this insert
Maglev track for according to Motomeko 2. 4. The insert is made of stainless steel,
The magnetic levitation type railway track according to claim 3, wherein the bolt is made of a polyamide resin. 5. An electromagnetic induction between a first outer body, a second outer body that abuts on the first outer body to form a space, and a magnet housed in the space and mounted on a vehicle. A propulsion coil for applying a propulsive force to the vehicle by an action, a levitating guide coil housed in the space and for providing a levitating force and a guiding force to the vehicle by an electromagnetic induction action with the magnet, and an insulating material filled in the space A method of manufacturing a ground coil for a magnetically levitated railway track, comprising: a propulsion coil and a levitation guide coil in a space formed between a first outer body and a second outer body. A method of manufacturing a ground coil for a magnetically levitated railroad track, comprising: a step of disposing a space, and a step of filling and curing an insulating material before being cured in the space.