JPH09252503A - Magnetic levitation train - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a means which makes it possible for a magnetic levitation train to continue its smooth run even if quenching occurred to the superconducting magnets on an intermediate truck supporting a magnetic levitation train. SOLUTION: Members 7 are provided between two neighboring car bodies to constrain their relative, vertical movement, letting compressive force and tensile force of the vertical direction act on coil springs 74, 75. Two car bodies 1a, 1b are each connected to a truck 2b via two air springs 5. The magnetic levitation train in enabled to run on levitation by electrodynamic suspension generated by superconducting magnets provided on the truck 2b and ground coils 9 provided on a guideway.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic levitation vehicle using a superconducting magnet, and more particularly to a method for connecting vehicle bodies.

[0002]

2. Description of the Related Art As a railway vehicle traveling at a speed of 500 km / h or more, there is a magnetic levitation vehicle using a superconducting magnet. This railway system is a system in which a vehicle levitates due to the magnetic force of a superconducting magnet mounted on a bogie unit. The superconducting magnet can realize a superconducting state at extremely low temperatures, but it may not be able to maintain the superconducting state due to internal frictional heat due to mechanical vibration, insufficient cooling capacity, heat intrusion from the outside, and the like. This state is called quench, and it is difficult for the magnetically levitated vehicle to carry out a favorable levitating run in this case, and a countermeasure against it is desired.

As a countermeasure for quenching the superconducting coil, the superconducting wire itself is described in JP-A-3-53414. The winding structure of the superconducting magnet device and the method of arranging the winding are described in JP-A-2-162706.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
The improvement concerning the composition of the superconducting wire material described in Japanese Patent No. 14 and the winding configuration and the arrangement method of the superconducting magnet device described in JP-A-2-162706 relate to the improvement of the superconducting magnet. However, it does not describe the measures for the magnetically levitated vehicle when the superconducting magnet is quenched.

Therefore, the inventor Tatsu conducted a vehicle motion analysis simulation at the time of quenching by a super computer to obtain the motion characteristics of the vehicle and considered a countermeasure. The motion characteristics of a conventional vehicle at the time of quench analyzed by a super computer will be described below with reference to the drawings.

A conventional example will be described with reference to FIGS. 19 to 23. FIG. 19 is a side view of a main portion of a conventional magnetically levitated vehicle. FIG. 20 is a front view of a conventional magnetically levitated vehicle. FIG. 21 is an overall side view of a conventional magnetic levitation vehicle. However, the rear body is not shown. FIG.
Shows a top view of the truck, and FIG. 23 shows a side view of the truck.

The vehicle body 1 has a window 8 and a door 6 and is used by passengers. The front vehicle body 1a of the vehicle body 1 and the rear vehicle body (not shown) and the intermediate vehicle body 1b are slightly different in shape, and the front vehicle body 1a has a wedge-shaped front end portion in the traveling direction of the front vehicle body to reduce air resistance. The rear bogie has a wedge-shaped rear end.

The vehicle body 1 is connected to the carriage 2 via an air spring 5. The front vehicle body 1a and the rear vehicle body (not shown) and the intermediate vehicle bodies 1b and 1c have different coupling relationships with the carriage. In the front vehicle body 1a, at the vehicle body end adjacent to the intermediate vehicle body 1b, two vehicle bodies are provided via the air spring 5.
The connecting carriage 2b is connected, and the front end of the vehicle body in the traveling direction is connected to the vehicle body 1a and the bogie 2a via an air spring 5.

A total of eight superconducting magnets are provided on the side surface of the carriage 2 at positions symmetrical to the traveling direction indicated by the arrow A, four on each side. The magnetically levitated vehicle levitates due to the electromagnetic force between the ground coil 9 provided on the guideway 3 and the superconducting magnet 4 provided on the truck 2.

The arrangement of the superconducting magnets 4 installed on the carriage 2 is shown in FIG. The front and rear guide wheels 14a, 14b travel on the side walls when the superconducting magnet 4 causes an imbalance to the extent that the truck 2 in the left-right direction of the magnetic force comes into contact with the guideway side wall 3 due to a quench or a failure of the ground coil. The front and rear guide wheels 14a and 14b are located at the four corners of the truck as shown in FIG.

The superconducting magnets 4 are provided at four positions 4La to 4Ld on the left side and four on the right side 4Ra to 4Rd at a position symmetrical to the traveling direction of the side surface portion of the carriage 2 for a total of eight. . The magnetically levitated vehicle levitates due to the electromagnetic force of the ground coil 9 provided on the guideway 3 and the superconducting magnet 4 provided on the carriage 2.

The trolley 2 is provided with a front guide wheel 14a and a rear guide wheel 14b which come into contact with the side wall of the guideway in an emergency, and are provided symmetrically with respect to the traveling direction. Similarly, in FIG. Includes a front landing wheel 15a and a rear landing wheel 15 which come into contact with the bottom wall of the guideway in an emergency when the levitation force is reduced due to a quench of the superconducting magnet 4 or a failure of the ground coil.
b is provided symmetrically with respect to the traveling direction.

Table 1 shows the results obtained by the simulation when the superconducting state of any one of the superconducting magnets 4 of the carriage 2a or 2b is lost in the magnetically levitated vehicle constructed as described above. .

[0014]

[Table 1]

Table 1 shows the contact state between the carriage and the guideway when one of the left sides of the superconducting coil shown in FIG. 22 is quenched. When 4Lb or 4Lc on the left side of the two superconducting coils in the middle is quenched, the carriage and the guideway are in a non-contact state, and it is possible to continue levitation. However, when 4La or 4Ld on the left side of the two superconducting coils at both ends is quenched, a large unbalanced rotation moment is generated in the carriage 2 to rotate the carriage 2 in the yawing direction, and the carriage front-rear guide wheel 14a or It may not be possible to maintain a good distance between the guideway side wall 3 and 14b.

Although the above description has been given for the left superconducting coil, the same applies to the right side. This phenomenon is a phenomenon that occurs in the leading carriage 2a or in the carriage 2b between vehicles.

In order to solve the above problems, the superconducting coils 4La, 4Ld or 4Ra, 4Rd at both ends of the trolley are used.
In the case of quenching, the method of forcibly quenching the superconducting coil facing the quenched superconducting coil can be considered. For example, 4 when 4La is quenched
Ra is forcibly quenched, or 4Rd is forcibly quenched when 4Ld is quenched.

Table 2 shows an example of analysis results in this case.

[0019]

[Table 2]

Table 2 shows a trolley when 4Ra or 4Rd facing the quench coil is forcedly quenched at the same time as the quench of the coil when the superconducting coils 4La or 4Ld of the leading trolley 2a and the intermediate trolley 2b are quenched. This shows the possibility of contact with the guideway.

In this case, with respect to the contact with the side wall of the carriage 2, there is no unbalanced rotation moment generated in the yawing direction on the carriage 2, and there are front and rear guide wheels 14a or 14 of the carriage.
b has the effect of avoiding contact with the side wall 3 of the guideway and quenching in opposition.

Regarding the contact with the bottom wall of the guideway, when the leading carriage 2a has a superconducting coil that causes quenching, the weight of the vehicle body supported by the leading carriage 2a is only the leading portion of the leading carriage. In addition, the levitation force is sufficiently larger than the burden of the vehicle body weight, and the guideway bottom wall and the front landing wheel 15
The a and the rear landing wheel 15b do not contact.

However, if the intermediate carriage 2b has a superconducting coil that causes quenching, the weight of the vehicle body supported by the intermediate carriage 2b is the leading carriage because the intermediate carriage 2b supports two vehicles. It is larger than the case of 2a. Moreover, since the vertical displacements of the two adjacent vehicles can be displaced independently of each other, there is a possibility that the intermediate carriage 2b may be pitched and the front landing wheel 15a may contact the guideway bottom wall.

This operation will be described below. FIG. 24 is a graph of simulation results. FIG. 24 is a front and rear landing attached to the bottom wall of the guideway and the carriage when the magnetically levitated vehicle is traveling at 500 km / h and 4La and 4Ra of the superconducting magnet shown in FIG. 22 of the intermediate carriage 2b are simultaneously quenched. The time response waveform of the displacement of the wheels 15a and 15b is shown.

The vertical axis of FIG. 24 is 0 when the front and rear landing wheels 15a and 15b are in contact with the bottom wall of the guideway. During normal traveling, the surface is about 150 mm, but there is a possibility that the front landing wheel 15a will come into contact with the bottom wall of the guideway about 0.7 seconds after the two superconducting coils have been quenched.

As described above, according to the analysis result of the vehicle motion analysis simulation at the time of quenching by the supercomputer, when the superconducting magnet is quenched in the conventional vehicle, the quenched superconducting coil side of the two adjacent car bodies that ride on the quench truck. It was discovered that the vehicle could sink significantly.

Therefore, it is an object of the present invention to provide a means for allowing a magnetically levitated vehicle to satisfactorily levitate even when a quench occurs in the superconducting magnet of the intermediate carriage.

[0028]

DISCLOSURE OF THE INVENTION The present invention is directed to the relative positioning of two vehicle bodies at the ends of a vehicle in order to prevent the quenched vehicle from sinking when the superconducting coil in an intermediate truck is quenched. This is achieved by providing a member for restraining vertical movement and connecting adjacent vehicles by the restraint member.

The operation will be described below.

Even when the superconducting coil installed in the intermediate carriage provided between the vehicles is quenched by the action of the restraint member, the upper and lower ends of the ends of the two vehicles adjacent to each other on the intermediate carriage are quenched. The displacement is kept the same. Therefore, the two vehicle ends that are adjacent to each other on the intermediate trolley sink the vehicle relatively uniformly even if the superconducting coil is quenched. Therefore, one-sided sinking of the vehicle on the quenching side is avoided.

On the other hand, the trolley having the quench coil sinks downward due to the decrease in the levitation force, and at the same time, the moment that tries to lower the quench coil while rotating it further downward acts as an unbalanced force. However, since the two vehicles riding on the trolley sink uniformly, two adjacent vehicles generate a pitching moment reaction force that opposes the moment acting as the unbalanced force, and the trolley guides the trolley. It is possible to prevent contact with the bottom wall of the way.

[0032]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) A first embodiment will be described with reference to FIGS. 1 to 4.
An embodiment will be described. FIG. 1 is a side view of a main part of a magnetic levitation vehicle according to a first embodiment of the present invention. FIG. 2 is a front view of the magnetic levitation vehicle according to the first embodiment of the present invention. FIG.
FIG. 1 is an overall side view of a magnetic levitation vehicle that uses a first embodiment of the present invention. However, the rear body is not shown. FIG.
FIG. 3 is a detailed view of the vehicle body vertical movement restraint device of the present invention.

The vehicle body 1 is connected to the carriage 2 via an air spring 5. The front vehicle body 1a and the rear vehicle body (not shown) and the intermediate vehicle bodies 1b and 1c have different coupling relationships with the carriage. In the front vehicle body 1a, at the vehicle body end adjacent to the intermediate vehicle body 1b, two vehicle bodies are provided via the air spring 5.
The connecting carriage 2b is connected, and the front end of the vehicle body in the traveling direction is connected to the vehicle body 1a and the bogie 2a via an air spring 5.

Eight superconducting magnets are provided at four positions on each side, symmetrically with respect to the traveling direction of the side surface of the carriage 2. The magnetically levitated vehicle levitates due to the electromagnetic force between the ground coil 9 provided on the guideway 3 and the superconducting magnet 4 provided on the truck 2.

The coil spring 74 is provided on the front side of the vehicle body 1 in the traveling direction.
The spring receiving members 78 and 79, the washers 77, and the nuts 76 are fixed to the coil spring fixing tool 71 extending from a and the coil spring fixing tool 72 extending from the rear vehicle body 1b in the traveling direction. Similarly, the coil spring 75 has spring receiving members 78, 79 and washers 77 for the coil spring fixture 72 and the coil spring fixture 72 fastened to the vehicle body 1a on the front side in the traveling direction.
Further, they are fixed by a nut 76, and these members constitute an inter-vehicle vertical movement restraining member 7 installed at the end of the adjacent vehicle body.

Coil spring 7 of restraint member 7 for vertical movement between vehicle bodies
As shown in FIG. 2, two of each of the four and 75 are installed at symmetrical positions.

The spring receiving member 78 includes a washer 77 and a nut 7.
It is fixed to the coil spring fixtures 71 and 73 by 6 and is completely restrained. The spring bearing member 79 is completely restrained by the coil spring fixture 72 by a shrink fit. Of the two adjacent vehicle bodies, the coil spring 75 strongly bears a compressive load when the front vehicle body is relatively displaced upward, and the coil spring 74 is relatively displaced when the rear vehicle body is relatively displaced upward. It has a structure that a large compressive load acts on it.

The coil springs 74, 75 are
Although it has sufficient support rigidity, lateral displacement, front-back displacement, pitching displacement, yawing displacement, and rolling displacement of two adjacent vehicle bodies have only a small amount of rigidity. , Pitching, yawing and
The degree of freedom in the rolling direction is not completely restricted.
Therefore, the magnetically levitated vehicle can travel along a curved line.

In the above structure, the superconducting coils 4La, 4Ld or 4 at both ends of the intermediate carriage, which has been a problem in the past, are used.
When Ra and 4Rd are quenched, when the superconducting coil opposite to the quenched superconducting coil is forcibly quenched, for example, when 4La is quenched, 4
An analysis result in the case of forcibly quenching Ra, or forcibly quenching 4Rd when 4Ld is quenched, etc. will be described with reference to schematic diagrams.

FIG. 6 is a side view of the operation for one formation of the magnetic levitation vehicle, which is drawn based on the calculation result of the above computer simulation. In FIG. 6, it is assumed that the three vehicle bodies are one formation and that they are traveling in the direction indicated by arrow A.

FIG. 5 is a graph of simulation results. FIG. 5 shows four of the superconducting magnets of the intermediate carriage 2b shown in FIG. 22 when the magnetically levitated vehicle is traveling at a speed of 500 km / h.
Front and rear landing wheels 15a, 15 attached to the bottom wall of the guideway and the truck when La and 4Ra are simultaneously quenched
The time response waveform of the displacement of b is shown.

The vertical axis of FIG. 5 is 0 when the front and rear landing wheels 15a and 15b are in contact with the bottom wall of the guideway. During normal running, it is about 150 mm. The front landing wheel 15a sinks about 50 mm about 0.6 seconds after the two superconducting coils have been opposed to each other.
A sufficient distance can be maintained between a and the bottom wall of the guideway, and good levitation travel can be performed.

The state of the vehicle motion at this time is shown in FIG.
FIG. 6 shows the final state when a magnetically levitated vehicle composed of three vehicles is traveling at a speed of 500 km / h and 4La and 4Ra of the superconducting magnet shown in FIG. 22 of the intermediate carriage 2b are simultaneously quenched. It is a schematic diagram. In this drawing, the shapes of the vehicle body and the dolly are shown in a scaled down form of the actual dimensions. The vertical displacement is shown 20 times larger than the scale in order to facilitate understanding of the situation. The distance between the bottom wall of the guideway and the dolly is shown at 20 times.

As shown in FIG. 6, the front landing wheel 15a floats above the bottom wall of the guideway. At this time, of the two adjacent car bodies that ride on the quench carriage, the quenched superconducting coil side vehicle does not largely sink, and the adjacent two bodies that ride on the quench carriage by the action of the inter-body vertical movement restraining member 7
As a result of the analysis, it was revealed that the two bodies sink uniformly. Therefore, the distance between the front landing wheel 15a and the bottom wall of the guideway can be sufficiently maintained, and good levitation traveling can be performed.

That is, the leading carriage 2a and the intermediate carriage 2
When the superconducting coil 4La or 4Ld of b is quenched, 4Ra or 4Rd facing the quench coil, respectively, is forcibly quenched at the same time as the quenching of the coil.
There is no unbalanced rotation moment generated in the yawing direction, and the front and rear guide wheels 14a or 14b of the carriage can maintain a sufficient space between the guideway side wall 3 and have an effect of quenching facing each other.

Regarding the contact with the bottom wall of the guideway as described above, if the intermediate carriage 2b has a superconducting coil that causes quenching, the intermediate carriage 2b supports two vehicles. Although the weight of the vehicle body supported by the intermediate carriage 2b is larger than that of the leading carriage 2a, the vertical displacements of the two adjacent vehicles are the same, so that the intermediate carriage 2b does not pitch and guides. A sufficient space can be maintained between the way bottom wall and the front landing wheel 15a.

In order to make the above phenomenon easy to understand, a simple mechanical model will be described below. FIG. 7 shows 4La,
FIG. 4 is a simplified mechanical model diagram of a magnetically levitated vehicle according to the related art when the superconducting magnet at the position of 4 Ra is quench-quenched. FIG. 8 shows a simplified mechanical model diagram of the magnetic levitation vehicle according to the present invention when the superconducting magnets at the positions 4La and 4Ra are quench-quenched.

First, the symbols in the figure will be described. FIG.
In FIG. 8, arrow A indicates the traveling direction of the magnetically levitated vehicle. Arrow z
Indicates the positive direction of the z-axis of the coordinate system, and the arrow θ indicates the positive direction of pitching. M is the mass of the vehicle body, m is the mass of the truck, g is the weight acceleration, and L is the distance between the center of gravity of the truck 2 and the point of action of the vehicle weight (1/2 vehicle body) Mg / 2.

The carriage 2 has a superconducting magnet 4 and a ground coil 9.
Magnetic force is applied by interaction with. In the case of the facing quench, the superconducting magnets at the symmetrical positions generate magnetic forces having the same magnitude. Therefore, in this simple model, two equivalent magnetic forces generated by the superconducting magnets at the symmetrical positions are combined into one linear force. It is represented by the product of the magnetic spring and displacement. That is, 4La and 4
The magnetic spring 41a corresponds to Ra, and the same applies to 4L.
41b for b and 4Rb, 41c for 4Lc and 4Rc
However, 41d corresponds to 4Ld and 4Rd, respectively. Let the magnetic spring constant be K _MAG . Since this model is a model in which superconducting magnets 4La and 4Ra are quenched,
The magnetic spring 41a is not shown in the figure. d indicates the distance between the magnetic springs. Δz and Δθ respectively represent the vertical translational displacement of the center of gravity from the steady running state and the rotational angle change.

Reference numeral 17 denotes two adjacent vehicle bodies, the air spring 5 is represented as a coil spring, and the spring constant is Ka.

In the conventional example shown in FIG. 7, two adjacent vehicle bodies are independently coupled to the dolly via air springs, and the two vehicle bodies follow the displacement of the dolly, respectively. Gravity Mg / 2 acts on each. Further, forces from the three magnetic springs on the left and right sides act on the carriage 2. Formula 1 shows the static balance equation of the force in the z-axis direction regarding the carriage. Here, the force of the spring in the compression direction is positive.

[0053]

[Equation 1]

Next, assuming that the counterclockwise moment is positive, the static balance equation of the moment around the center of gravity of the carriage 2 is as follows.

[0055]

[Equation 2]

The first term on the right side is the momentum due to the weight of the front vehicle body in the advancing direction, the second term on the right side is the momentum due to the weight of the rear vehicle body in the advancing direction, and the third term on the right side is , The moment generated by the magnetic spring 41d, the fourth term on the right side indicates the moment generated by the magnetic spring 41c, and the fifth term on the right side indicates the moment generated by the magnetic spring 41b. The sum of the third term to the fifth term on the right side of Expression 1 does not become zero due to the imbalance of the pitching moment caused by the facing quench of the superconducting magnets 4La and 4Ra. From Equation 1 and Equation 2, Equation 3 describing Δθ is derived.

[0057]

(Equation 3)

On the other hand, in the case of the present invention, the two adjacent vehicle bodies are vertically restrained by the vehicle body vertical movement restraining member. Further, the air spring constant Ka between the vehicle body and the bogie is
In comparison with, the value of the coil spring constant of the vertical motion restraining member between the vehicle bodies is sufficiently large. Therefore, the vertical movement restraining member of the present invention sufficiently reduces the sinking amount of the vehicle body. Further, the amount of depression of two adjacent vehicle bodies is almost the same. Assuming that the vehicle body length is sufficiently long and the two sinking amounts are sufficiently small, the rotation angle displacement amount around the center of gravity of the two vehicle bodies is small. Since the dolly is connected to the vehicle body by the air spring, when the dolly is displaced, the dolly is supported by the vehicle body.

The static balance formula of the force in the z-axis direction regarding the truck in the case of the present invention is the same as that of the conventional example.

[0060]

[Equation 2]

The balance equation of the moment around the center of gravity of the bogie is as follows.

[0062]

(Equation 4)

The first term on the right side is a mode by an air spring installed between the two adjacent vehicle bodies and the vehicle body on the front side in the traveling direction.
The right side second term is the moment by the air spring installed between the vehicle body and the rear side vehicle body in the traveling direction, the right side third term is the moment generated by the magnetic spring 41d, and the right side fourth term is the magnetic field. The moment generated by the spring 41c and the fifth term on the right side respectively indicate the moment generated by the magnetic spring 41b. From Expression 3 and Expression 4, Expression 5 describing Δθ is derived.

[0064]

(Equation 5)

Equation (3) of Δθ of the conventional example and Δθ of the present invention
Comparing the equation (5), the value of Δθ in the case of the present invention becomes smaller by the second term of the denominator in the equation 5. The second term of the denominator results from the first and second terms on the right side of the balance equation (equation 4) of the moment around the center of gravity of the bogie. The physical meaning of the second term in the denominator of Equation 5 is that the quenching of the superconducting magnets at the positions of 4La and 4Ra causes an imbalance of momentum, and an air spring generates opposing pitching moment reaction force. That is. Therefore, as compared with the prior art, it can be seen that the change Δθ in the rotation angle of the bogie when using the present invention is reduced due to the influence of the pitching moment reaction force of the air spring.

As described above, according to the present invention, when the superconducting magnet on the side of the bogie end faces the opposite quench, the pitching moment reaction force against the moment generated as an unbalanced magnetic force is generated by the air. A spring is generated, the displacement amount of the truck becomes smaller compared to the conventional technology, and the distance between the front and rear guide wheels of the truck and the bottom wall of the guideway can be sufficiently maintained,
It is possible to carry out good levitation. .

Therefore, according to the first embodiment, the intermediate carriage 2
4La of the superconducting magnet 4 of FIG.
And 4Ra, or 4Ld and 4Rd are simultaneously quenched, or when one of the two combinations of the two quenched superconducting magnets is quenched, the remaining one is oppositely quenched, and Due to the reaction force of the pitching moment generated by the vertical motion restraint member between the vehicle body, the distance between the bogie and the bottom wall of the guideway can be maintained sufficiently, and good levitation can be continued. Becomes

(Second Embodiment) FIGS. 9 and 10 show a second embodiment of the present invention. FIG. 9 is a side view of a main part of a magnetic levitation vehicle according to a second embodiment of the present invention. FIG.
0 is a front view of a magnetic levitation vehicle according to a second embodiment of the present invention.

The inter-body vertical movement restraining member 7 is installed at the end of the adjacent vehicle body. The coil spring 74 includes spring receiving members 78, 79, washers 77, and nuts for the coil spring fixture 72 fastened to the vehicle body 1a on the front side in the traveling direction and the coil spring fixture 71 fastened to the vehicle body 1b on the rear side in the traveling direction. It is fixed by 76. Similarly, the coil spring 75 is the coil spring fixture 7 fastened to the vehicle body 1b on the rear side in the traveling direction.
3 and the coil spring fixture 72, a spring receiving member 78,
It is fixed by 79, a washer 77, and a nut 76. Other configurations are the same as those in the first embodiment.

The operation of the magnetically levitated vehicle constructed as described above is the same as that of the first embodiment shown in FIG.

Therefore, according to the second embodiment, the intermediate carriage 2
4La of the superconducting magnet 4 of FIG.
And 4Ra, or 4Ld and 4Rd are simultaneously quenched, or when one of the two combinations of the two quenched superconducting magnets is quenched, the remaining one is oppositely quenched, and Due to the reaction force of the pitching moment generated by the vertical motion restraint member between the vehicle body, the distance between the bogie and the bottom wall of the guideway can be maintained sufficiently, and good levitation can be continued. Becomes

(Third Embodiment) FIGS. 11, 12 and 1
3 shows a third embodiment of the present invention. FIG.
FIG. 8 is a side view of a main part of a magnetically levitated vehicle according to a third embodiment of the present invention. FIG. 12 is a front view of a magnetic levitation vehicle according to a third embodiment of the present invention. FIG. 13 is a detailed view of the vehicle body vertical movement restraint device of the present invention.

The inter-body vertical movement restraining member 10 is installed at the end of the adjacent vehicle body. The shaft 102 includes a shaft fixing tool 101 fastened to the vehicle body 1a on the front side in the traveling direction and a shaft fixing tool 103 fastened to the vehicle body 1b on the rear side in the traveling direction.
Against the washers 104, 108, rubber 105, 101
It is fixed by nuts 109, 1010 via 1, 106, 107. Other configurations are the same as those in the first embodiment.

In the third embodiment, a tensile or compressive force acts in the thrust direction of the shaft 102 due to the relative vertical displacement between two adjacent vehicle bodies. Adjacent 2
Regarding relative lateral displacement, longitudinal displacement, pitching displacement, yawing displacement, and rolling displacement between two vehicle bodies, rubbers 105, 106, 107, and 1011 allow displacement in respective directions of the shaft and join the shaft. It has a structure that buffers bending and twisting forces.

The operation of the magnetic levitation vehicle constructed as described above is equivalent to that of the first embodiment shown in FIG.

Therefore, according to the third embodiment, the intermediate carriage 2
4La of the superconducting magnet 4 of FIG.
And 4Ra, or 4Ld and 4Rd are simultaneously quenched, or when one of the two combinations of the two quenched superconducting magnets is quenched, the remaining one is oppositely quenched, and Due to the reaction force of the pitching moment generated by the vertical motion restraint member between the vehicle body, the distance between the bogie and the bottom wall of the guideway can be maintained sufficiently, and good levitation can be continued. Becomes

Further, in the third embodiment, since the shaft 102 is used to restrain the vertical motion between the vehicle bodies, when the superconducting magnet 4 is opposedly quenched, the first embodiment and the second embodiment.
Since only a small vertical movement between the vehicle bodies is allowed as compared with the embodiment, the vertical displacement of the bogie 2b which has generated the quench is the first
Further, it is smaller than that of the second embodiment, and the safety can be further improved.

(Fourth Embodiment) FIG. 14 is a detailed view of a vehicle-body vertical movement restraining member according to a fourth embodiment of the present invention.

The inter-body vertical movement restraint member 11 is installed at the end of the adjacent vehicle body. Both ends of the shaft 112 are processed into a spherical surface, and are fastened by a ball joint of a shaft fixing tool 111 fastened to a vehicle body on the front side in the traveling direction and a ball joint of a shaft fixing tool 113 fastened to a vehicle body on the rear side in the traveling direction. ing. Other configurations are the same as those in the first embodiment.

In the fourth embodiment, a tensile or compression force acts in the thrust direction of the shaft 112 due to the relative vertical displacement between two adjacent vehicle bodies. Regarding relative lateral displacement, longitudinal displacement, pitching displacement, yawing displacement, and rolling displacement between two adjacent vehicle bodies, the spherical portions at both ends of the shaft 112 and the shaft fixtures 111 and 1 are used.
A ball joint in which thirteen ball bearing portions are connected to each other has a structure that allows displacement of the shaft in each direction and buffers bending force and twisting force applied to the shaft.

The operation of the magnetically levitated vehicle constructed as described above is equivalent to that of the first embodiment shown in FIG.

Therefore, according to the fourth embodiment, the intermediate carriage 2
4La of the superconducting magnet 4 of FIG.
And 4Ra, or 4Ld and 4Rd are simultaneously quenched, or when one of the two combinations of the two quenched superconducting magnets is quenched, the remaining one is oppositely quenched, and Due to the reaction force of the pitching moment generated by the vertical motion restraint member between the vehicle body, the distance between the bogie and the bottom wall of the guideway can be maintained sufficiently, and good levitation can be continued. Becomes

Further, in the fourth embodiment, since the shaft 112 is used for restraining the vertical movement between the vehicle bodies, when the superconducting magnet 4 is opposedly quenched, the first embodiment and the second embodiment.
Since only a small vertical movement between the vehicle bodies is allowed as compared with the embodiment, the vertical displacement of the bogie 2b which has generated the quench is the first
In addition, the size of the shaft 112 is smaller than that of the second embodiment, and the safety can be further improved. Further, in the fourth embodiment, the shaft 112 is fastened by the ball joint, so the third embodiment
Compared with the embodiment, the degree of freedom of movement only in the vertical direction is strongly restrained, and the degrees of freedom of other movements are restrained weakly. As a result, the curve passing performance of the magnetic levitation vehicle is improved.

(Fifth Embodiment) FIGS. 15 and 16 show a fifth embodiment of the present invention. FIG. 15 is a front view of a main part of a magnetic levitation vehicle according to a fifth embodiment of the present invention.
FIG. 16 is a detailed view of the vehicle body vertical movement restraining member according to the fifth embodiment of the present invention.

The inter-body vertical movement restraining member 12 is installed at the end portion of the adjacent vehicle body. One end of the shaft 122 is fastened to the rear vehicle body in the traveling direction, and the other end is processed into a spherical surface, and is fastened by a ball joint of the shaft fixing tool 121 fastened to the vehicle body in the front traveling direction. ing. Other configurations are the same as those in the first embodiment.

In the fifth embodiment, only the shearing force acts in the radial direction of the shaft portion of the shaft 122 due to the relative vertical displacement between the two adjacent vehicle bodies. Regarding relative lateral displacement, longitudinal displacement, pitching displacement, yawing displacement, and rolling displacement between two adjacent vehicle bodies, a ball joint in which the spherical surface portion of the shaft 122 and the ball bearing portion of the shaft fixture 121 are combined. However, the structure allows the displacement of the shaft in each direction and buffers the bending force and the twisting force applied to the shaft.

The operation of the magnetically levitated vehicle constructed as described above is equivalent to that of the first embodiment shown in FIG.

Therefore, according to the fifth embodiment, the intermediate carriage 2
4La of the superconducting magnet 4 of FIG.
And 4Ra, or 4Ld and 4Rd are simultaneously quenched, or when one of the two combinations of the two quenched superconducting magnets is quenched, the remaining one is oppositely quenched, and Due to the reaction force of the pitching moment generated by the vertical motion restraint member between the vehicle body, the distance between the bogie and the bottom wall of the guideway can be maintained sufficiently, and good levitation can be continued. Becomes

Further, in the fifth embodiment, since the shaft 122 is used for restraining the vertical movement between the vehicle bodies, when the superconducting magnet 4 is oppositely quenched, it is compared with the first and second embodiments. Since only a small vertical movement between the vehicle bodies is allowed, the vertical displacement of the dolly 2b that has caused a quench is further smaller than that in the fourth embodiment, and the safety can be further enhanced.

Further, in the fifth embodiment, since the shaft 122 is fastened by the ball joint, compared with the third embodiment, the freedom of movement only in the vertical direction is strongly restrained, and other movement freedom is achieved. It is restrained weakly. As a result, the curve passing performance of the magnetic levitation vehicle is improved.

Further, in the case of the fifth embodiment, there is no member that is long in the vertical direction of the vehicle body, so that the space can be saved.

(Sixth Embodiment) FIGS. 17 and 18 show a sixth embodiment of the present invention. FIG. 17 is a front view of a main part of a magnetic levitation vehicle according to a sixth embodiment of the present invention.
FIG. 18 is a detailed view of the vehicle-body vertical movement restraining member according to the sixth embodiment of the present invention.

The inter-body vertical movement restraining member 16 is installed at the end of the adjacent vehicle body. The anti-vibration rubbers 163 and 164 are anti-vibration rubber fixtures 161 fastened to the vehicle body on the front side in the traveling direction.
And an anti-vibration rubber fixture 1 fastened to the vehicle body on the rear side in the traveling direction
It is fastened by 62. Other configurations are the same as those in the first embodiment.

In the sixth embodiment, when a tensile force acts on the anti-vibration rubber 163 due to a relative vertical displacement between two adjacent vehicle bodies, a compressive force acts on the anti-vibration rubber 164, and conversely. When a compression force acts on the vibration isolating rubber 163, a tensile force acts on the vibration isolating rubber 164, and the two vibration isolating rubbers complement each other in the characteristics of the vibration isolating rubber which is weak in tension. Regarding relative left / right displacement, front / rear displacement, pitching displacement, yawing displacement, and rolling displacement between two adjacent vehicle bodies, two vibration damping rubbers are deformed to allow displacement in each direction. Has become.

The operation of the magnetically levitated vehicle configured as described above is the same as that of the first embodiment shown in FIG.

Therefore, according to the sixth embodiment, the intermediate carriage 2
4La of the superconducting magnet 4 of FIG.
And 4Ra, or 4Ld and 4Rd are simultaneously quenched, or when one of the two combinations of the two quenched superconducting magnets is quenched, the remaining one is oppositely quenched, and Due to the reaction force of the pitching moment generated by the vertical motion restraint member between the vehicle body, the distance between the bogie and the bottom wall of the guideway can be maintained sufficiently, and good levitation can be continued. Becomes

Further, in the sixth embodiment, since the anti-vibration rubbers 163 and 164 are used for restraining the vertical movement between the vehicle bodies, when the superconducting magnet 4 is opposedly quenched, the first and second embodiments are performed. Since only a small vertical movement between the vehicle bodies is allowed as compared with the example, the vertical displacement of the dolly 2b in which the quench occurs is smaller than that in the first and second embodiments, and the safety can be further enhanced.

Further, in the sixth embodiment, the anti-vibration rubber 163,
Since the vertical movement restraint between the vehicle bodies by 164 is performed, the degree of freedom of movement in only the vertical direction is strongly restrained and the other degrees of freedom of movement are weakly restrained, as compared with the third embodiment. As a result, the curve passing performance of the magnetic levitation vehicle is improved.

Further, in the case of the sixth embodiment, since there is no member that is long in the vertical direction of the vehicle body, the space can be saved.

[0100]

As described above, according to the present invention,
By providing an inter-body vertical movement restraining member between adjacent vehicle bodies of a magnetically levitated vehicle, a pitching moment counteracts against a moment generated as an unbalanced force caused by quenching of superconducting magnets at symmetrical positions. The front and rear guide wheels of the bogie, in which the force is generated by the air spring and the superconducting magnet is quenched, can maintain a sufficient distance from the bottom wall of the guideway, and it is possible to continue good levitation.

[Brief description of drawings]

FIG. 1 is a side view of a main part of a magnetic levitation vehicle according to a first embodiment of the present invention.

FIG. 2 is a front view of a main part of the magnetic levitation vehicle according to the first embodiment of the present invention.

FIG. 3 is an overall configuration diagram of a magnetic levitation vehicle according to a first embodiment of the present invention.

FIG. 4 is a detailed view of an inter-body vertical movement restraining member according to the first embodiment of the present invention.

FIG. 5 is a graph showing the distance between the bottom wall of the guideway and the front and rear landing wheels during an oncoming quench.

FIG. 6 is a schematic side view showing the operation of the entire magnetic levitation vehicle during an oncoming quench according to the first embodiment of the present invention.

FIG. 7 is a simplified mechanical model diagram of a magnetically levitated vehicle in a conventional example when a superconducting magnet is quench-quenched.

FIG. 8 is a simplified mechanical model diagram of the magnetic levitation vehicle according to the present invention when the superconducting magnet is quench-quenched.

FIG. 9 is a side view of a main part of a magnetic levitation vehicle according to a second embodiment of the present invention.

FIG. 10 is a front view of a main part of a magnetic levitation vehicle according to a second embodiment of the present invention.

FIG. 11 is a side view of a main part of a magnetic levitation vehicle according to a third embodiment of the present invention.

FIG. 12 is a front view of a main portion of a magnetic levitation vehicle according to a third embodiment of the present invention.

FIG. 13 is a detailed view of an inter-body vertical movement restraining member according to a third embodiment of the present invention.

FIG. 14 is a detailed view of an inter-body vertical movement restraining member according to a fourth embodiment of the present invention.

FIG. 15 is a front view of a main portion of a magnetic levitation vehicle according to a fifth embodiment of the present invention.

FIG. 16 is a detailed view of a vehicle body vertical movement restraining member according to a fifth embodiment of the present invention.

FIG. 17 is a front view of a main portion of a magnetic levitation vehicle according to a sixth embodiment of the present invention.

FIG. 18 is a detailed view of an inter-body vertical movement restraint member according to a sixth embodiment of the present invention.

FIG. 19 is a side view of a main part of a magnetic levitation vehicle according to a conventional example.

FIG. 20 is a front view of a main portion of a magnetic levitation vehicle according to a conventional example.

FIG. 21 is an overall configuration diagram of a magnetic levitation vehicle according to a conventional example.

FIG. 22 is a top view showing an arrangement of a carriage and a superconducting magnet and a guideway side wall guide wheel.

FIG. 23 is a side view showing an arrangement of a carriage and a superconducting magnet and a landing wheel for a guideway bottom wall.

FIG. 24 is a graph showing the distance between the guideway bottom wall and the front and rear landing wheels at the time of an oncoming quench in a conventional example, which is obtained by computer simulation.

[Explanation of symbols]

1a ... Leading body, 1b ... Intermediate body, 1c ... Rear body, 2
a ... leading carriage, 2b ... intermediate carriage, 2c ... tail carriage, 3 ...
Guideway, 4La ... Left side first superconducting magnet, 4Lb ...
Left side second superconducting magnet, 4Lc ... Left side third superconducting magnet, 4
Ld ... left side fourth superconducting magnet, 4Ra ... right side first superconducting magnet, 4Rb ... right side second superconducting magnet, 4Rc ... right side third superconducting magnet, 4Rd ... right side fourth superconducting magnet, 41a ... magnetic spring 1, 41b ... magnetic spring 2, 41c ... Magnetic springs 3, 4
1d ... magnetic springs 4, 5 ... air spring between vehicle bogies, 6 ... door,
7 ... Vertical body movement restraining member A, 71, 72, 73 ... Coil spring fixture, 74, 75 ... Coil spring, 76 ... Nut A, 77 ... Washer A, 78 ... Spring receiving material A1, 79 ... Spring receiving material A2, 8 ... Window, 9 ... Ground coil, 10 ... Vehicle vertical restraining member B, 101, 103 ... Shaft fixture A, 102 ... Shaft B, 104, 108 ... Washer B1,
105, 107 ... Rubber B1, 106, 1011 ... Rubber B
2, 109, 1010 ... Nuts B1, 11 ... Inter-body vertical movement restraining member C, 111, 113 ... Shaft fixing tool C,
112 ... Shaft C, 12 ... Body vertical movement restraining member D, 121 ... Shaft receiving member, 122 ... Shaft D,
14a ... Front guide wheel, 14b ... Rear guide wheel, 15a ... Front landing wheel, 15b ... Rear landing wheel, 16 ... Inter-body vertical movement restraining member E, 161 ... Rubber receiving member 1, 162 ... Rubber receiving member 2, 163 164 ... Anti-vibration rubber, 17 ... Two adjacent vehicle bodies in the simplified model.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takaomi Nishigaki 502 Jinritsucho, Tsuchiura-shi, Ibaraki Hiritsu Seisakusho Co., Ltd. (72) Inventor Kenji Okuna 502 Jinritsucho, Tsuchiura-shi, Ibaraki Japan Machinery Research Institute, Tate Works (72) Yoshio Hara, 794, Higashitoyo, Higashi-Toyo, Shimomatsu, Yamaguchi Prefecture, Ltd., Kasado Plant, Hitachi, Ltd. (72) Masao Oshida, 794, Higashi-Toyoi, Shimomatsu, Yamaguchi Prefecture Hitachi, Ltd. Inside the Kasado Plant (72) Inventor Hiroshi Yoshioka 38-8, Hikarimachi, Kokubunji, Tokyo 38 Inside the Railway Technical Research Institute (72) Masafumi Yoshimura 2-8, Hikarimachi, Kokubunji, Tokyo 38 Foundation Railway Technical Research Institute (72) Inventor Shiro Hosaka 2-14-19 Nanami, Nakamura-ku, Aichi Prefecture Tokai Passenger Railway Co., Ltd. In-house

Claims (5)

[Claims] 1. A trolley between adjacent vehicle bodies on which passengers ride, a superconducting magnet on the trolley, a levitation and propulsion coil on the ground, and an electromagnetic force of the superconducting magnet and the levitation and propulsion coil on the ground. In a magnetically levitated vehicle that runs while levitating from above, the two
A magnetic levitation vehicle characterized in that a restraint member for restraining a relative vertical movement of two vehicle bodies is provided. 2. The magnetic levitation vehicle according to claim 1,
The member for restraining the relative movement in the vertical direction is a shaft that receives a compressive load or a tensile load in the thrust direction, and rubber is interposed in the shaft fixing portion so that the adjacent two vehicle bodies are displaced laterally and longitudinally. A magnetically levitated vehicle characterized by allowing pitching displacement, yawing displacement, and rolling displacement. 3. The magnetic levitation vehicle according to claim 1,
The member for restraining the relative vertical movement is a shaft that receives a compressive load or a tensile load in the thrust direction, and by using a ball joint to fix the shaft, the lateral displacement and longitudinal displacement of two adjacent vehicle bodies, A magnetically levitated vehicle characterized by allowing pitching displacement, yawing displacement, and rolling displacement. 4. The magnetic levitation vehicle according to claim 1,
The member for restraining the relative vertical movement is a shaft that receives a shearing force in the radial direction, and by using a ball joint to fix the shaft, the lateral displacement, the longitudinal displacement, the pitching displacement of two adjacent vehicle bodies, A magnetically levitated vehicle characterized by allowing yawing displacement and rolling displacement. 5. The magnetic levitation vehicle according to claim 1,
The member for restraining the relative vertical movement is a vibration isolating rubber that receives a compressive force in the up and down direction, and the deformation of the vibration isolating rubber causes lateral displacement, longitudinal displacement, and pitching displacement between two adjacent vehicle bodies. A magnetically levitated vehicle characterized by allowing yawing displacement and rolling displacement.